CN113701732B - Portable foundation pit and side slope gradient control device and control method - Google Patents
Portable foundation pit and side slope gradient control device and control method Download PDFInfo
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- CN113701732B CN113701732B CN202111009321.4A CN202111009321A CN113701732B CN 113701732 B CN113701732 B CN 113701732B CN 202111009321 A CN202111009321 A CN 202111009321A CN 113701732 B CN113701732 B CN 113701732B
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- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Abstract
The invention provides a portable foundation pit and side slope gradient control device and a control method, aiming at the problems that the existing gradient control device is inconvenient for the storage protection of a laser instrument, the accurate adjustment of an inclination angle and the height adjustment of the laser instrument and the quick and automatic leveling of a measuring angle disc, the invention provides the following scheme that the gradient control device comprises a protection box with an opening at the top and the left side, two laser instruments are arranged in the protection box, a top plate is movably contacted with the inner wall of the right side of the protection box, and a baffle is fixedly connected with the left side of the top plate. The height of the laser instrument can be conveniently adjusted according to actual needs.
Description
Technical Field
The invention relates to the technical field of slope control equipment, in particular to a portable foundation pit and side slope control device and a control method.
Background
When foundation ditch, side slope put the slope, need put the slope of slope according to actual need accurate control, two kinds of modes of stay cord and laser ray are mostly adopted to current control mode, because the stay cord appears the pine easily when some longer side slopes are used and collapses the phenomenon, consequently adopts the angle of laser ray to this kind of side slope mode of adopting laser ray more to control and put the slope, utilizes the angle on laser ray instruction domatic, and personnel can put the slope according to the laser ray of slope when putting the slope.
The existing slope gradient control device comprises a laser instrument, a support frame and a measuring angle disc fixed on the support frame, wherein the operation mode is that the levelness of the support frame is measured by using the level instrument, if the support frame is not level, the support frame needs to be adjusted horizontally by adopting adjusting modes such as a cushion block and the like to level the measuring angle disc, so that the phenomenon that the angle of the laser instrument is difficult to accurately adjust in the follow-up process due to the inclination of the measuring angle disc is avoided, then the inclination angle of the laser instrument is adjusted by matching with the measuring angle disc to adjust the angle of the laser instrument to the angle needing slope release, the laser instrument is fixed after the adjustment is finished, and finally the laser instrument is started to indicate the angle of the slope release by using laser, but the slope gradient control device still has some defects;
1. the laser instrument has the defect that the laser instrument is inconvenient to store and protect (the risk that the laser instrument is easily damaged by impact after being exposed outside for a long time when not used or carried is higher);
2. the defect that the inclination angle of the laser instrument is inconvenient to adjust rapidly and accurately exists;
3. the height of the laser instrument is inconvenient to adjust according to actual needs;
4. the leveling device has the defect that the leveling of the angle disc is not convenient to quickly and automatically adjust (the mode of measuring and adjusting by using the level meter needs personnel to adjust point to point, and horizontal adjustment work in a plurality of directions, namely front, back, left and right is involved, so that time and labor are wasted).
In order to solve the problems that a laser instrument is inconvenient to store and protect, the inclination angle and the height are accurately adjusted, and the leveling of an angle disc is inconvenient to quickly and automatically adjust, a portable foundation pit and slope gradient control device and a control method are provided.
Disclosure of Invention
The portable foundation pit and side slope gradient control device and the control method solve the problems that the laser instrument is inconvenient to store and protect, the inclination angle and the height are accurately adjusted, and the angle disc is inconvenient to quickly and automatically level.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable foundation pit and side slope gradient control device, which comprises a protective box with openings on the top and the left side, two laser instruments are arranged in the protective box, a top plate is movably contacted with the inner wall of the right side of the protective box, a baffle plate is fixedly connected with the left side of the top plate, the right side of the baffle plate is movably contacted with the left side of the protective box, two rectangular holes are arranged on the right side of the top plate, a penetrating hole is arranged on the inner wall of the top of each rectangular hole, a guide rod is sleeved in each rectangular hole in a sliding manner, the right ends of the two guide rods are fixedly connected with the inner wall of the right side of the protective box, an embedded groove is arranged at the top of each guide rod, and hard anti-skid rubber is fixedly bonded in each embedded groove, the top of the top plate is provided with a synchronous moving-out self-leveling locking mechanism, the bottom end of the synchronous moving-out self-leveling locking mechanism extends into the protective box, and an angle quick-adjusting mechanism matched with the two laser instruments is fixedly connected with the bottom end of the synchronous moving-out self-leveling locking mechanism.
Preferably, the synchronous moving-out self-leveling locking mechanism comprises a pressing plate arranged above a top plate, the top of the top plate is fixedly connected with a first U-shaped handle, the top of the pressing plate is fixedly connected with a second U-shaped handle positioned in the first U-shaped handle, the right side of the bottom of the pressing plate is fixedly connected with two vertical rods, the bottom ends of the vertical rods extend into corresponding penetrating holes and are fixedly connected with a plurality of sharp blocks, the sharp ends of the sharp blocks extend into corresponding rectangular holes and are in close contact with the top of the hard anti-skid rubber sheet, both sides of the top of the pressing plate are provided with grooves with openings at the front side and the rear side, the inner walls of both sides of each groove are in sliding contact with a rectangular block, the bottom of the rectangular block is fixedly connected with a positioning rod, the bottom end of the positioning rod extends below the pressing plate and is fixedly connected with the top of the top plate, and a compression spring in a compression state is fixedly connected between the bottom of the rectangular block and the inner wall of the corresponding groove, and compression spring movable sleeve establishes on the locating lever that corresponds, the fixed spherical cover that inlays in top of roof, and the top and the bottom of spherical cover all set up to the opening, and spherical cover is located between two guide bars, and spherical cover movable sleeve is equipped with universal ball, and the bottom of clamp plate is established to the arc structure and is bonded and be fixed with arc anti-skidding rubber, and the outside top in close contact with of arc anti-skidding rubber and universal ball, and the bottom of universal ball extends to the protective housing in and fixedly connected with connecting rod.
Preferably, the angle quick adjustment mechanism comprises a balancing weight arranged in the protective box, the top center position of the balancing weight is fixedly connected with the bottom end of the connecting rod, the bottom of the balancing weight is provided with a rectangular groove, a first screw rod is rotatably arranged between the front inner wall and the rear inner wall of the rectangular groove, a moving seat in sliding connection with the inner walls at two sides of the rectangular groove is sleeved on the first screw rod in a threaded manner, the front end and the rear end of the first screw rod both extend out of the balancing weight and are fixedly connected with a first knob, a guide shaft is fixedly connected between the front inner wall and the rear inner wall of the rectangular groove, the moving seat is slidably sleeved on the guide shaft, the bottom of the moving seat is fixedly connected with a rack, the bottom of the balancing weight is fixedly connected with a U-shaped seat, a rotating shaft is rotatably arranged on the inner wall at the bottom of the U-shaped seat, two ends of the rotating shaft both extend out of the U-shaped seat and are fixedly connected with a vertical rod, the bottom end of the vertical rod is fixedly connected with the top of the corresponding laser instrument, the fixed cover is equipped with the first gear that is located the U-shaped seat in the pivot, and the bottom and the first gear of rack mesh mutually, and the bottom fixedly connected with semicircle protractor of U-shaped seat, semicircle protractor are located between two laser instruments, and the both sides of semicircle protractor all are provided with the protractor scale mark, and the equal fixedly connected with pointer in one side that two laser instruments are close to each other, pointer and the protractor scale mark that corresponds cooperate.
Preferably, the top of the top plate is provided with an embedded hole fixedly connected with the outer side of the spherical sleeve, and the inner wall of the bottom of the groove is provided with a first round hole in sliding connection with the outer side of the corresponding positioning rod.
Preferably, the front side of the movable seat is provided with a first threaded hole and a second round hole, the first threaded hole is in threaded connection with the first screw, and the inner wall of the second round hole is in sliding connection with the outer side of the guide shaft.
Preferably, the inner wall of the bottom of the U-shaped seat is fixedly connected with two first bearings, inner rings of the first bearings are fixedly sleeved with the outer sides of the corresponding rotating shafts, and the first gear is located between the two first bearings.
Preferably, the protection box is further provided with a height adjusting mechanism, the height adjusting mechanism comprises a bottom plate which is in movable contact with the bottom of the protection box, the right side of the top of the bottom plate is fixedly connected with a rectangular inner tube of which the top end is a plugging mechanism, the top end of the rectangular inner tube extends into the protection box, a rectangular outer tube is sleeved on the rectangular inner tube in a sliding manner, the top end of the rectangular outer tube is fixedly connected with a rectangular box of which the right side is provided with an opening, the right side of the rectangular box is fixedly connected with the inner wall of the right side of the protection box, a rectangular seat is sleeved in the rectangular inner tube in a sliding manner, a second screw rod is rotatably installed at the top of the rectangular seat, the top end of the second screw rod extends into the rectangular box and is fixedly connected with a first bevel gear, the rectangular inner tube is sleeved on the second screw rod in a threaded manner, a second bevel gear is meshed with the right side of the first bevel gear, a connecting shaft is fixedly connected with a connecting shaft, the right end of the connecting shaft extends out of the protection box and is fixedly connected with a second knob, two guide posts are fixedly connected to the right side of the top of the bottom plate, and the protective box is sleeved on the two guide posts in a sliding mode.
Preferably, the inner wall of the bottom of the protection box is provided with a rectangular through hole in sliding connection with the outer side of the rectangular inner pipe, the right side of the bottom of the protection box is provided with two circular grooves, and the inner walls of the circular grooves are in sliding connection with the outer sides of the corresponding guide posts.
Preferably, a second threaded hole in threaded connection with the second screw is formed in the inner wall of the top end of the rectangular inner tube, a second bearing is fixedly connected to the top of the rectangular seat, a third bearing is fixedly embedded in the inner wall of the bottom of the rectangular box, an inner ring of the third bearing and an inner ring of the fourth bearing are fixedly sleeved with the outer side of the second screw, and a fourth bearing fixedly sleeved with the outer side of the connecting shaft is embedded in the inner wall of the right side of the protective box.
The invention also provides a control method of the portable foundation pit and side slope gradient control device, which comprises the following steps:
s1: the slope control device is placed on the top of a slope, the baffle, the protective box and the top plate are matched to form surrounding storage protection for the laser instrument, when the laser instrument is moved out for use, the second U-shaped handle is pulled upwards to drive the pressing plate to move upwards, and the pressing plate slides upwards on the two positioning rods and compresses the two compression springs;
s2: when the pressing plate moves upwards in the S1, the two vertical rods drive the plurality of sharp blocks to be separated upwards from the two hard anti-skid rubber sheets, the locking is released, the first U-shaped handle is moved leftwards to drive the top plate to slide leftwards on the two guide rods, the top plate drives the baffle plate to move leftwards, the top plate drives the pressing plate and the vertical rods to move leftwards synchronously through the two positioning rods, the top plate drives the universal ball to move leftwards through the spherical sleeve, the universal ball drives the angle quick-adjusting mechanism to move leftwards through the connecting rods, and the angle quick-adjusting mechanism drives the two laser instruments to move leftwards;
s3: s1 when the pressing plate moves upwards, the arc-shaped anti-skid rubber is driven to be separated upwards from the universal ball, the pressing and fixing of the universal ball are removed, if the whole body inclines due to uneven ground, the balancing weight automatically rotates downwards to be vertical at the moment under the action of self gravity, the balancing weight drives the semicircular angle measuring disc to automatically rotate to be horizontal through the U-shaped seat, the U-shaped seat drives the two laser instruments to automatically rotate downwards to be vertical sequentially through the rotating shaft and the two vertical rods, the balancing weight drives the universal ball to generate self-adaptive rotation in the spherical sleeve through the connecting rod, and the semicircular angle measuring disc is automatically leveled when the universal ball moves out;
s4: after the semicircular angle measuring disc in the S3 is moved out and leveled, upward pulling force on the second U-shaped handle is released, at the moment, the elastic force of a compression spring in a compression state drives the pressing plate to move back downwards, the pressing plate drives the arc-shaped anti-skid rubber to press and fix the universal ball downwards, so that the locking of the universal ball is realized, the pressing plate drives the sharp block to downwards press and contact with the hard anti-skid rubber through the vertical rod, under the friction force generated by the pressing and contact, the left and right limitation of the pressing plate is realized, the pressing plate limits the top plate through the two positioning rods, and the locking of the top plate after being moved out is realized;
s5: when the inclination angles of the two laser instruments are adjusted, the first knob is rotated in the forward direction to drive the first screw to rotate, the first screw can drive the moving seat to slide backwards on the guide shaft through rotation, the moving seat drives the rack to move backwards, the rack drives the first gear to rotate in the counterclockwise direction, the first gear drives the rotating shaft to rotate, the rotating shaft drives the two laser instruments to rotate forwards through the two vertical rods, the laser instruments drive the corresponding pointers to rotate forwards, the inclination angles of the laser instruments change at the moment, and when the pointers rotate to the proper angle positions on the corresponding angle scale lines, the angle of the laser instruments is properly adjusted at the moment;
s6: when the height of the laser instrument is adjusted, a second knob is rotated in a forward direction, the second knob drives a second bevel gear to rotate through a connecting shaft, the second bevel gear drives a second screw rod to rotate at the top of a rectangular seat through a first bevel gear, the second screw rod rotates in a second threaded hole and moves upwards, the second screw rod drives a rectangular box to move upwards, the rectangular box drives a rectangular outer pipe to slide upwards on a rectangular inner pipe, the rectangular box drives a protective box to slide upwards on the rectangular inner pipe and two guide posts, the protective box drives a top plate to move upwards through two guide rods, the top plate drives an angle quick adjusting mechanism to move upwards through a spherical sleeve, a universal ball and a connecting rod, the angle quick adjusting mechanism drives the two laser instruments to move upwards, and the height of the two laser instruments is adjusted;
s7: after using, upwards stimulate second U-shaped handle once more for compression spring is compressed once more, moves first U-shaped handle in the right this moment and makes it drive the roof and immigrate the protective housing right on two guide bars in, the roof loops through spherical cover and universal ball drive angle fast adjusting mechanism and two laser instruments immigration protective housing right in, realizes accomodating the protection to two laser instruments.
Compared with the prior art, the invention has the beneficial effects that:
the invention is convenient for accommodating and protecting the laser instrument, reduces the risk of the laser instrument being damaged by accidental collision when not in use or carried, is convenient for quickly unlocking and moving out the laser instrument and the semicircular angle measuring disc, is convenient for automatically and quickly leveling the semicircular angle measuring disc when moving out, is convenient for quickly and accurately adjusting the inclination angle of the laser instrument, improves the indicating precision when putting on a slope, and is convenient for adjusting the height of the laser instrument according to the actual requirement.
Drawings
Fig. 1 is a schematic structural diagram of a portable foundation pit and side slope gradient control device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of a part of a cross section of the right view of an angle quick adjustment mechanism and a laser instrument connecting piece of the portable foundation pit and side slope gradient control device according to the first embodiment of the invention;
fig. 4 is a schematic top sectional view of a top plate, a guide rod, a hard anti-slip rubber sheet, a spherical sleeve and a universal ball connector of the portable foundation pit and slope gradient control device according to the first embodiment of the present invention;
fig. 5 is a schematic cross-sectional structural view of a spherical sleeve and a universal ball connecting piece of the portable foundation pit and side slope gradient control device according to the first embodiment of the invention;
fig. 6 is a schematic structural diagram of a portable foundation pit and side slope gradient control device according to a second embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
fig. 8 is a schematic perspective view of a rectangular inner tube and a rectangular outer tube connecting piece of a portable foundation pit and slope gradient control device according to a second embodiment of the present invention.
In the figure: 1 laser instrument, 2 protective boxes, 3 guide rods, 4 top plates, 5 rectangular holes, 6 baffle plates, 7 hard anti-skid rubber sheets, 8 pressing plates, 9 grooves, 10 rectangular blocks, 11 positioning rods, 12 compression springs, 13 vertical rods, 14 sharp blocks, 15 first U-shaped handles, 16 second U-shaped handles, 17 spherical sleeves, 18 universal balls, 19 connecting rods, 20 balancing weights, 21U-shaped seats, 22 semicircular volume angle disks, 23 rotating shafts, 24 vertical rods, 25 pointers, 26 first gears, 27 rectangular grooves, 28 first screws, 29 moving seats, 30 first knobs, 31 guide shafts, 32 racks, 33 arc anti-skid rubber sheets, 34 rectangular inner tubes, 35 rectangular outer tubes, 36 rectangular boxes, 37 rectangular connecting shafts, 38 second screws, 39 first bevel gears, 40 second bevel gears, 41, 42 second knobs, 43 guide columns and 44 bottom plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, a portable foundation pit and slope gradient control device comprises a protective box 2 with an opening at the top and left side, two laser instruments 1 are arranged in the protective box 2, a top plate 4 is movably contacted on the inner wall of the right side of the protective box 2, a baffle 6 is fixedly connected at the left side of the top plate 4, the right side of the baffle 6 is movably contacted with the left side of the protective box 2, two rectangular holes 5 are arranged at the right side of the top plate 4, a penetration hole is arranged on the inner wall of the top of each rectangular hole 5, a guide rod 3 is slidably sleeved in each rectangular hole 5, the right ends of the two guide rods 3 are fixedly connected with the inner wall of the right side of the protective box 2, the guide rods 3 can be used for carrying out left and right guide support on the top plate 4 by matching with the rectangular holes 5, an embedded groove is arranged at the top of each guide rod 3, a hard anti-skid rubber 7 is fixedly adhered in the embedded groove, a synchronous shifting self-leveling locking mechanism is arranged at the top of the top plate 4, the bottom that synchronous formula shifted out from leveling locking mechanism extends to in the protective housing 2 to fixedly connected with and two laser instrument 1 matched with angle fast adjusting mechanism, baffle 6, protective housing 2 and roof 4 cooperation form to surround to take in the protection to laser instrument 1, are convenient for take in the protection to laser instrument 1, reduce the risk that laser instrument 1 received the mistake damage when not using or carrying.
Synchronous formula shifts out from leveling locking mechanism is including setting up the clamp plate 8 in roof 4 top, the first U-shaped handle 15 of top fixedly connected with of roof 4, the top fixedly connected with of clamp plate 8 is located the second U-shaped handle 16 of first U-shaped handle 15, two montants 13 of bottom right side fixedly connected with of clamp plate 8, the bottom of montant 13 extends to corresponding penetrating downthehole and a plurality of sharp piece 14 of fixedly connected with, the most advanced of sharp piece 14 extends to in the corresponding rectangular hole 5 and with the top in close contact with of stereoplasm antiskid rubber 7, recess 9 that front side and rear side set up for the opening is all seted up to the top both sides of clamp plate 8, and sliding contact has rectangular block 10 between the both sides inner wall of recess 9, the bottom fixedly connected with locating lever 11 of rectangular block 10, the bottom of locating lever 11 extends to the below of clamp plate 8 and with the top fixed connection of roof 4, fixedly connected with is in compression spring 12 of compression state between the bottom of rectangular block 10 and the bottom inner wall of corresponding recess 9 And the compression spring 12 is movably sleeved on the corresponding positioning rod 11, the vertical rod 13 is limited by the friction force generated when the hard anti-skid rubber 7 is in close contact with the sharp block 14, the top plate 4 is limited by the pressing plate 8 and the positioning rod 11 in sequence, the top plate 4 is prevented from sliding and moving left and right on the two guide rods 3, the top of the top plate 4 is fixedly embedded with the spherical sleeve 17, the top and the bottom of the spherical sleeve 17 are both provided with openings, the spherical sleeve 17 is positioned between the two guide rods 3, the universal ball 18 is movably sleeved in the spherical sleeve 17, the bottom of the pressing plate 8 is provided with an arc-shaped structure and is fixedly bonded with the arc-shaped anti-skid rubber 33, the arc-shaped anti-skid rubber 33 is in close contact with the top of the outer side of the universal ball 18, the universal ball 18 is locked by the friction force generated when the arc-shaped anti-skid rubber 33 is closely bonded with the universal ball 18, the bottom end of the universal ball 18 extends into the protective box 2 and is fixedly connected with the connecting rod 19, the laser instrument 1 and the semicircular angle measuring disc 22 can be conveniently and quickly unlocked and moved out, and the semicircular angle measuring disc 22 can be automatically and quickly leveled while being moved out.
The angle quick adjustment mechanism comprises a balancing weight 20 arranged in the protection box 2, the top center position of the balancing weight 20 is fixedly connected with the bottom end of a connecting rod 19, the bottom of the balancing weight 20 is provided with a rectangular groove 27, a first screw 28 is rotatably arranged between the front side inner wall and the rear side inner wall of the rectangular groove 27, a moving seat 29 which is in sliding connection with the inner walls at the two sides of the rectangular groove 27 is sleeved on the upper thread of the first screw 28, the front end and the rear end of the first screw 28 both extend out of the balancing weight 20 and are fixedly connected with a first knob 30, a guide shaft 31 is fixedly connected between the front side inner wall and the rear side inner wall of the rectangular groove 27, the moving seat 29 is slidably sleeved on the guide shaft 31, the bottom of the moving seat 29 is fixedly connected with a rack 32, the first knob 30 is rotated to drive the first screw 28 to rotate to drive the moving seat 29 and the rack 32 to move back and forth in a threaded connection mode, the bottom of the balancing weight 20 is fixedly connected with a U-shaped seat 21, a rotating shaft 23 is rotatably mounted on the inner wall of the bottom of the U-shaped seat 21, two ends of the rotating shaft 23 both extend out of the U-shaped seat 21 and are fixedly connected with a vertical rod 24, the bottom end of the vertical rod 24 is fixedly connected with the top of the corresponding laser instrument 1, a first gear 26 positioned in the U-shaped seat 21 is fixedly sleeved on the rotating shaft 23, the bottom of the rack 32 is meshed with the first gear 26, when the first gear 26 is driven to rotate by the forward and backward displacement of the rack 32, the two laser instruments 1 can be driven to rotate and tilt and adjust back and forth sequentially through the rotating shaft 23 and the vertical rod 24, a semicircular angle dial 22 is fixedly connected to the bottom of the U-shaped seat 21, the semicircular angle dial 22 is positioned between the two laser instruments 1, angle scale lines are respectively arranged on two sides of the semicircular angle dial 22, a pointer 25 is fixedly connected to one side of the two laser instruments 1 close to each other, the pointer 25 is matched with the corresponding angle scale line, so as to rapidly and accurately adjust the tilt angle of the laser instruments 1, the indication precision during slope releasing is improved.
In this embodiment, the top of the top plate 4 is provided with an embedded hole fixedly connected with the outer side of the spherical sleeve 17, the inner wall of the bottom of the groove 9 is provided with a first round hole slidably connected with the outer side of the corresponding positioning rod 11, the front side of the movable seat 29 is provided with a first threaded hole and a second round hole, the first threaded hole is in threaded connection with the first screw 28, the inner wall of the second round hole is in sliding connection with the outer side of the guide shaft 31, the inner wall of the bottom of the U-shaped seat 21 is fixedly connected with two first bearings, the inner rings of the first bearings are fixedly sleeved with the outer sides of the corresponding rotating shafts 23, the first gear 26 is located between the two first bearings, the embodiment facilitates the storage and protection of the laser 1, reduces the risk that the laser 1 is damaged by accidental collision when not in use or in carrying, facilitates the quick unlocking and moving out of the laser 1 and the semicircular quantity angle plate 22, facilitates the automatic and quick leveling of the semicircular quantity angle plate 22 when moving out, the inclination of the laser instrument 1 can be quickly and accurately adjusted, and the indication precision during slope releasing is improved.
The embodiment also provides a control method of the portable foundation pit and side slope gradient control device, which comprises the following steps:
s1: the slope control device is placed on the top of a slope, the baffle 6, the protective box 2 and the top plate 4 are matched to form surrounding storage protection for the laser instrument 1, when the laser instrument 1 is moved out for use, the second U-shaped handle 16 is pulled upwards to drive the pressing plate 8 to move upwards, and the pressing plate 8 slides upwards on the two positioning rods 11 and compresses the two compression springs 12;
s2: when the pressing plate 8 in the S1 moves upwards, the pressing plate 8 drives the plurality of sharp blocks 14 to upwards separate from the two hard anti-skid rubber sheets 7 through the two vertical rods 13, the locking is released, the first U-shaped handle 15 is moved leftwards to drive the top plate 4 to slide leftwards on the two guide rods 3, the top plate 4 drives the baffle 6 to move leftwards, the top plate 4 drives the pressing plate 8 and the vertical rods 13 to synchronously move leftwards through the two positioning rods 11, the top plate 4 drives the universal ball 18 to move leftwards through the spherical sleeve 17, the universal ball 18 drives the angle quick-adjustment mechanism to move leftwards through the connecting rod 19, and the angle quick-adjustment mechanism drives the two laser instruments 1 to move leftwards;
s3: the pressing plate 8 in the S1 drives the arc-shaped anti-skid rubber 33 to be separated from the universal ball 18 upwards when moving upwards, the pressing and fixing of the universal ball 18 is released, if the whole body is inclined due to uneven ground, the balancing weight 20 automatically rotates downwards to be vertical at the moment under the action of self gravity, the balancing weight 20 drives the semicircular angle disc 22 to automatically rotate to be horizontal through the U-shaped seat 21, the U-shaped seat 21 sequentially drives the two laser instruments 1 to automatically rotate downwards to be vertical through the rotating shaft 23 and the two vertical rods 24, the balancing weight 20 drives the universal ball 18 to generate self-adaptive rotation in the spherical sleeve 17 through the connecting rod 19, and the semicircular angle disc 22 is automatically leveled when moving out;
s4: s3, after the semicircular angle-measuring disc 22 moves out and levels, the upward pulling force on the second U-shaped handle 16 is released, at this time, the elastic force of the compression spring 12 in the compression state drives the pressing plate 8 to move back downwards, the pressing plate 8 drives the arc-shaped anti-skid rubber 33 to press and fix the universal ball 18 downwards, so as to realize the locking of the universal ball 18, avoid the phenomenon that the laser instrument 1 and the semicircular angle-measuring disc 22 at the bottom of the universal ball shake when in use, the pressing plate 8 drives the sharp block 14 to downwards press and contact with the hard anti-skid rubber 7 through the vertical rod 13, under the friction force generated by the squeezing contact, the left and right limitation of the pressure plate 8 is realized, the pressure plate 8 limits the top plate 4 through the two positioning rods 11, the locking of the top plate 4 after being moved out is realized, the angle quick-adjustment mechanism and the two laser instruments 1 can be quickly moved out, the semi-circle angle measuring disc 22 can be automatically and quickly leveled when being moved out, and the measuring accuracy is prevented from being influenced by the front, back, left and right inclination;
s5: when the inclination angles of the two laser instruments 1 are adjusted, the first knob 30 is rotated in the forward direction to drive the first screw 28 to rotate, the first screw 28 can drive the moving seat 29 to slide backwards on the guide shaft 31 through rotation, the moving seat 29 drives the rack 32 to move backwards, the rack 32 drives the first gear 26 to rotate in the counterclockwise direction, the first gear 26 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the two laser instruments 1 to rotate forwards through the two vertical rods 24, the laser instruments 1 drive the corresponding pointers 25 to rotate forwards, at the moment, the inclination angles of the laser instruments 1 are changed, the pointers 25 rotate to the proper angle positions on the corresponding angle scale lines, at the moment, the angle adjustment of the laser instruments 1 is proper, the rotation of the first knob 30 is stopped, at the moment, under the locking force of the first screw 28 and the threads of the first threaded hole, the laser instruments 1 after the angle adjustment are fixed, and the purpose of rapid and accurate angle adjustment of the two laser instruments 1 is achieved;
s6: after using, upwards stimulate second U-shaped handle 16 once more, make compression spring 12 compressed once more, it makes it drive roof 4 in two guide bars 3 immigration guard box 2 right to move first U-shaped handle 15 this moment rightwards, roof 4 loops through in spherical cover 17 and the universal ball 18 drives angle fast adjusting mechanism and two laser instrument 1 immigration guard box 2 right, the realization is accomodate the protection to two laser instrument 1, laser instrument 1 receives the risk that the mistake was damaged when reducing and not using or carrying.
Example two
Referring to fig. 6 to 8, the present embodiment is different from the first embodiment in that: the protection box 2 is further provided with a height adjusting mechanism, the height adjusting mechanism comprises a bottom plate 44 which is in movable contact with the bottom of the protection box 2, the right side of the top of the bottom plate 44 is fixedly connected with a rectangular inner tube 34 of which the top end is a blocking mechanism, the top end of the rectangular inner tube 34 extends into the protection box 2, a rectangular outer tube 35 is slidably sleeved on the rectangular inner tube 34, the top end of the rectangular outer tube 35 is fixedly connected with a rectangular box 36 of which the right side is an opening, the right side of the rectangular box 36 is fixedly connected with the inner wall of the right side of the protection box 2, a rectangular seat 37 is slidably sleeved in the rectangular inner tube 34, a second screw 38 is rotatably arranged at the top of the rectangular seat 37, the top end of the second screw 38 extends into the rectangular box 36 and is fixedly connected with a first bevel gear 39, the rectangular inner tube 34 is threadedly sleeved on the second screw 38, a second bevel gear 40 is meshed with the right side of the first bevel gear 39, and a connecting shaft 41 is fixedly connected with the right side of the second bevel gear 40, the right end of the connecting shaft 41 extends to the outside of the protective box 2 and is fixedly connected with a second knob 42, the connecting shaft 41, a second bevel gear 40 and a first bevel gear 39 which are connected in sequence when the second knob 42 is rotated are utilized to drive the second screw 38 to rotate, the right side of the top of the bottom plate 44 is fixedly connected with two guide posts 43, the protective box 2 is sleeved on the two guide posts 43 in a sliding manner, the inner wall of the bottom of the protective box 2 is provided with a rectangular through hole in sliding connection with the outer side of the rectangular inner pipe 34, the right side of the bottom of the protective box 2 is provided with two circular grooves, the inner walls of the circular grooves are in sliding connection with the outer sides of the corresponding guide posts 43, the inner wall of the top of the rectangular inner pipe 34 is provided with a second threaded hole in threaded connection with the second screw 38, the top of the rectangular seat 37 is fixedly connected with a second bearing, the inner wall of the bottom of the rectangular box 36 is fixedly embedded with a third bearing, the inner ring of the third bearing and the inner ring of the fourth bearing are fixedly sleeved with the outer side of the second screw 38, the inner wall of the right side of the protection box 2 is embedded with a fourth bearing fixedly sleeved with the outer side of the connecting shaft 41, so that the height of the laser instrument 1 can be adjusted conveniently according to actual needs.
The embodiment also provides a control method of the portable foundation pit and side slope gradient control device, which comprises the following steps:
s1: the slope control device is placed on the top of a slope, the baffle 6, the protective box 2 and the top plate 4 are matched to form surrounding storage protection for the laser instrument 1, when the laser instrument 1 is moved out for use, the second U-shaped handle 16 is pulled upwards to drive the pressing plate 8 to move upwards, and the pressing plate 8 slides upwards on the two positioning rods 11 and compresses the two compression springs 12;
s2: when the pressing plate 8 in the S1 moves upwards, the pressing plate 8 drives the plurality of sharp blocks 14 to upwards separate from the two hard anti-skid rubber sheets 7 through the two vertical rods 13, the locking is released, the first U-shaped handle 15 is moved leftwards to drive the top plate 4 to slide leftwards on the two guide rods 3, the top plate 4 drives the baffle 6 to move leftwards, the top plate 4 drives the pressing plate 8 and the vertical rods 13 to synchronously move leftwards through the two positioning rods 11, the top plate 4 drives the universal ball 18 to move leftwards through the spherical sleeve 17, the universal ball 18 drives the angle quick-adjustment mechanism to move leftwards through the connecting rod 19, and the angle quick-adjustment mechanism drives the two laser instruments 1 to move leftwards;
s3: s1, when moving upwards, the pressing plate 8 drives the arc anti-skid rubber 33 to separate upwards from the universal ball 18, so as to release the pressing of the universal ball 18, if the whole body inclines due to uneven ground, at the moment, under the action of self gravity, the counterweight block 20 automatically rotates downwards to be vertical, the counterweight block 20 drives the semicircular angle disc 22 to automatically rotate to be horizontal through the U-shaped seat 21, the U-shaped seat 21 sequentially drives the two laser instruments 1 through the rotating shaft 23 and the two vertical rods 24 to automatically rotate downwards to be vertical, the counterweight block 20 drives the universal ball 18 to generate self-adaptive rotation in the spherical sleeve 17 through the connecting rod 19, and the semicircular angle disc 22 is automatically leveled when moving out;
s4: s3, after the semicircular angle-measuring disc 22 moves out and levels, the upward pulling force on the second U-shaped handle 16 is released, at this time, the elastic force of the compression spring 12 in the compression state drives the pressing plate 8 to move back downwards, the pressing plate 8 drives the arc-shaped anti-skid rubber 33 to press and fix the universal ball 18 downwards, so as to realize the locking of the universal ball 18, avoid the phenomenon that the laser instrument 1 and the semicircular angle-measuring disc 22 at the bottom of the universal ball shake when in use, the pressing plate 8 drives the sharp block 14 to downwards press and contact with the hard anti-skid rubber 7 through the vertical rod 13, under the friction force generated by the squeezing contact, the left and right limitation of the pressure plate 8 is realized, the pressure plate 8 limits the top plate 4 through the two positioning rods 11, the locking of the top plate 4 after being moved out is realized, the angle quick-adjustment mechanism and the two laser instruments 1 can be quickly moved out, the semi-circle angle measuring disc 22 can be automatically and quickly leveled when being moved out, and the measuring accuracy is prevented from being influenced by the front, back, left and right inclination;
s5: when the inclination angles of the two laser instruments 1 are adjusted, the first knob 30 is rotated in the forward direction to drive the first screw 28 to rotate, the first screw 28 can drive the moving seat 29 to slide backwards on the guide shaft 31 through rotation, the moving seat 29 drives the rack 32 to move backwards, the rack 32 drives the first gear 26 to rotate in the counterclockwise direction, the first gear 26 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the two laser instruments 1 to rotate forwards through the two vertical rods 24, the laser instruments 1 drive the corresponding pointers 25 to rotate forwards, at the moment, the inclination angles of the laser instruments 1 are changed, the pointers 25 rotate to the proper angle positions on the corresponding angle scale lines, at the moment, the angle adjustment of the laser instruments 1 is proper, the rotation of the first knob 30 is stopped, at the moment, under the self thread locking force of the first screw 28 and the first threaded hole, the fixation of the laser instruments 1 after the angle adjustment is realized, and the purpose of the quick and accurate angle adjustment of the two laser instruments 1 is realized;
s6: when the height of the laser instrument 1 is adjusted, the second knob 42 is rotated in the forward direction, the second knob 42 drives the second bevel gear 40 to rotate through the connecting shaft 41, the second bevel gear 40 drives the second screw 38 to rotate at the top of the rectangular seat 37 through the first bevel gear 39, under the action of a second threaded hole formed in the rectangular inner tube 34, the second screw 38 rotates in the second threaded hole and moves upwards, the second screw 38 drives the rectangular box 36 to move upwards, the rectangular box 36 drives the rectangular outer tube 35 to slide upwards on the rectangular inner tube 34, the rectangular box 36 drives the protective box 2 to slide upwards on the rectangular inner tube 34 and the two guide posts 43, the protective box 2 drives the top plate 4 to move upwards through the two guide rods 3, the top plate 4 drives the angle quick adjustment mechanism to move upwards through the spherical sleeve 17, the universal ball 18 and the connecting rod 19 in sequence, the angle quick adjustment mechanism drives the two laser instruments 1 to move upwards, the height of the two laser instruments 1 can be adjusted;
s7: after using, upwards stimulate second U-shaped handle 16 once more, make compression spring 12 compressed once more, it makes it drive roof 4 in two guide bars 3 immigration guard box 2 right to move first U-shaped handle 15 this moment rightwards, roof 4 loops through in spherical cover 17 and the universal ball 18 drives angle fast adjusting mechanism and two laser instrument 1 immigration guard box 2 right, the realization is accomodate the protection to two laser instrument 1, laser instrument 1 receives the risk that the mistake was damaged when reducing and not using or carrying.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. The portable foundation pit and side slope gradient control device is characterized by comprising a protective box (2) with the top and the left side both provided with an opening, two laser instruments (1) are arranged in the protective box (2), a top plate (4) is movably contacted on the inner wall of the right side of the protective box (2), a baffle (6) is fixedly connected to the left side of the top plate (4), the right side of the baffle (6) is movably contacted with the left side of the protective box (2), two rectangular holes (5) are formed in the right side of the top plate (4), penetrating holes are formed in the inner wall of the top of each rectangular hole (5), guide rods (3) are slidably sleeved in the rectangular holes (5), the right ends of the two guide rods (3) are fixedly connected with the inner wall of the right side of the protective box (2), an embedded groove is formed in the top of each guide rod (3), hard anti-skid rubber (7) is fixedly bonded in the embedded groove, a synchronous moving-out self-leveling locking mechanism is arranged at the top of the top plate (4), the bottom end of the synchronous moving-out self-leveling locking mechanism extends into the protective box (2) and is fixedly connected with an angle quick-adjusting mechanism matched with the two laser instruments (1);
the synchronous moving-out self-leveling locking mechanism comprises a pressing plate (8) arranged above a top plate (4), the top of the top plate (4) is fixedly connected with a first U-shaped handle (15), the top of the pressing plate (8) is fixedly connected with a second U-shaped handle (16) positioned in the first U-shaped handle (15), the right side of the bottom of the pressing plate (8) is fixedly connected with two vertical rods (13), the bottom ends of the vertical rods (13) extend into corresponding penetrating holes and are fixedly connected with a plurality of sharp blocks (14), the sharp ends of the sharp blocks (14) extend into corresponding rectangular holes (5) and are in close contact with the top of a hard anti-skid rubber (7), grooves (9) with openings arranged on the front side and the rear side are formed in two sides of the top of the pressing plate (8), rectangular blocks (10) are in sliding contact with inner walls on two sides of the grooves (9), positioning rods (11) are fixedly connected with the bottoms of the rectangular blocks (10), the bottom end of the positioning rod (11) extends to the lower part of the pressure plate (8) and is fixedly connected with the top of the top plate (4), a compression spring (12) in a compression state is fixedly connected between the bottom of the rectangular block (10) and the inner wall of the bottom of the corresponding groove (9), and the compression spring (12) is movably sleeved on the corresponding positioning rod (11), the top of the top plate (4) is fixedly embedded with a spherical sleeve (17), the top and the bottom of the spherical sleeve (17) are both provided with openings, the spherical sleeve (17) is positioned between the two guide rods (3), the universal ball (18) is movably sleeved in the spherical sleeve (17), the bottom of the pressing plate (8) is provided with an arc-shaped structure and is fixedly bonded with an arc-shaped anti-skidding rubber (33), the arc-shaped anti-skidding rubber (33) is tightly contacted with the top of the outer side of the universal ball (18), and the bottom end of the universal ball (18) extends into the protective box (2) and is fixedly connected with a connecting rod (19);
the angle quick adjustment mechanism comprises a balancing weight (20) arranged in a protective box (2), the top center position of the balancing weight (20) is fixedly connected with the bottom end of a connecting rod (19), the bottom of the balancing weight (20) is provided with a rectangular groove (27), a first screw rod (28) is rotatably arranged between the front inner wall and the rear inner wall of the rectangular groove (27), a moving seat (29) in sliding connection with the inner walls at the two sides of the rectangular groove (27) is sleeved on the upper thread of the first screw rod (28), the front end and the rear end of the first screw rod (28) both extend out of the balancing weight (20) and are fixedly connected with a first knob (30), a guide shaft (31) is fixedly connected between the front inner wall and the rear inner wall of the rectangular groove (27), the moving seat (29) is sleeved on the guide shaft (31) in a sliding manner, the bottom of the moving seat (29) is fixedly connected with a rack (32), the bottom of the balancing weight (20) is fixedly connected with a U-shaped seat (21), rotate on the bottom inner wall of U-shaped seat (21) and install pivot (23), the both ends of pivot (23) all extend to U-shaped seat (21) outer and fixedly connected with montant (24), the bottom of montant (24) and the top fixed connection of the laser instrument (1) that corresponds, fixed cover is equipped with first gear (26) that are located U-shaped seat (21) on pivot (23), the bottom and first gear (26) of rack (32) mesh mutually, the bottom fixedly connected with semicircle volume angle dish (22) of U-shaped seat (21), semicircle volume angle dish (22) are located between two laser instruments (1), the both sides of semicircle volume angle dish (22) all are provided with the volume angle scale mark, equal fixedly connected with pointer (25) in one side that two laser instruments (1) are close to each other, pointer (25) cooperate with the volume angle scale mark that corresponds.
2. The portable foundation pit and side slope gradient control device according to claim 1, wherein the top of the top plate (4) is provided with an embedded hole fixedly connected with the outer side of the spherical sleeve (17), and the inner wall of the bottom of the groove (9) is provided with a first round hole slidably connected with the outer side of the corresponding positioning rod (11).
3. The portable foundation pit and side slope gradient control device according to claim 1, wherein a first threaded hole and a second round hole are formed in the front side of the movable seat (29), the first threaded hole is in threaded connection with the first screw rod (28), and the inner wall of the second round hole is in sliding connection with the outer side of the guide shaft (31).
4. The portable foundation pit and side slope gradient control device according to claim 1, wherein two first bearings are fixedly connected to the inner wall of the bottom of the U-shaped seat (21), inner rings of the first bearings are fixedly sleeved with the outer sides of the corresponding rotating shafts (23), and the first gear (26) is located between the two first bearings.
5. The portable foundation pit and side slope gradient control device according to claim 1, wherein a height adjusting mechanism is further arranged on the protection box (2), the height adjusting mechanism comprises a bottom plate (44) in movable contact with the bottom of the protection box (2), a rectangular inner tube (34) with a plugging mechanism at the top is fixedly connected to the right side of the top of the bottom plate (44), the top end of the rectangular inner tube (34) extends into the protection box (2), a rectangular outer tube (35) is slidably sleeved on the rectangular inner tube (34), a rectangular box (36) with an opening at the right side is fixedly connected to the top end of the rectangular outer tube (35), the right side of the rectangular box (36) is fixedly connected to the inner wall of the right side of the protection box (2), a rectangular seat (37) is slidably sleeved in the rectangular inner tube (34), and a second screw (38) is rotatably mounted at the top of the rectangular seat (37), the top of second screw rod (38) extends to in rectangle box (36) and first bevel gear of fixedly connected with (39), the screw thread cover of rectangle inner tube (34) is established on second screw rod (38), the right side meshing of first bevel gear (39) has second bevel gear (40), and the right side fixedly connected with connecting axle (41) of second bevel gear (40), the right-hand member of connecting axle (41) extends to outside and fixedly connected with second knob (42) of protective housing (2), two guide posts (43) of top right side fixedly connected with of bottom plate (44), protective housing (2) slip cap is established on two guide posts (43).
6. The portable foundation pit and side slope gradient control device according to claim 5, wherein the inner wall of the bottom of the protection box (2) is provided with a rectangular through hole which is slidably connected with the outer side of the rectangular inner pipe (34), the right side of the bottom of the protection box (2) is provided with two circular grooves, and the inner walls of the circular grooves are slidably connected with the outer sides of the corresponding guide posts (43).
7. The portable foundation pit and side slope gradient control device according to claim 5, wherein a second threaded hole in threaded connection with the second screw (38) is formed in the inner wall of the top end of the rectangular inner pipe (34), a second bearing is fixedly connected to the top of the rectangular seat (37), a third bearing is fixedly embedded in the inner wall of the bottom of the rectangular box (36), an inner ring of the third bearing and an inner ring of the fourth bearing are fixedly sleeved with the outer side of the second screw (38), and a fourth bearing fixedly sleeved with the outer side of the connecting shaft (41) is embedded in the inner wall of the right side of the protection box (2).
8. A control method of a portable foundation pit and side slope gradient control device is characterized by comprising the following steps:
s1: the slope control device is placed on the top of a slope, the baffle (6), the protective box (2) and the top plate (4) are matched to form surrounding storage protection for the laser instrument (1), and when the laser instrument (1) is moved out for use, the second U-shaped handle (16) is pulled upwards to drive the pressing plate (8) to move upwards and compress the compression spring (12);
s2: when the pressing plate (8) moves upwards in the S1, the pressing plate (8) drives the plurality of sharp blocks (14) to be separated from the two hard anti-skid rubber sheets (7) through the two vertical rods (13), the locking is released, the first U-shaped handle (15) is moved leftwards to drive the top plate (4) and the baffle plate (6) to move leftwards, and the top plate (4) drives the angle quick-adjustment mechanism connected with the bottoms of the angle quick-adjustment mechanism and the two laser instruments (1) to move leftwards;
s3: the pressing plate (8) in the S1 drives the arc-shaped anti-skidding rubber (33) to be separated from the universal ball (18) upwards when moving upwards, the pressing on the universal ball (18) is removed, if the whole body inclines due to uneven ground, the balancing weight (20) automatically rotates downwards to be vertical under the action of self gravity, the semicircular angle disc (22) is driven to automatically rotate to be horizontal through the U-shaped seat (21), the balancing weight (20) drives the universal ball (18) to self-adaptively rotate in the spherical sleeve (17), and the semicircular angle disc (22) is automatically leveled when moving out;
s4: after the semicircular angle measuring disc (22) in the S3 is moved out and leveled, the upward pulling force on the second U-shaped handle (16) is released, at the moment, the compression spring (12) in a compressed state drives the pressing plate (8) and the arc-shaped anti-skid rubber (33) to press and fix the universal ball (18) downwards, the pressing plate (8) drives the pointed block (14) to downwards squeeze and contact with the hard anti-skid rubber (7) through the vertical rod (13), and the locking after the top plate (4) is moved out is realized under the friction force generated by the squeezing and contact;
s5: when the inclination angles of the two laser instruments (1) are adjusted, the first knob (30) is rotated in the forward direction to drive the first screw rod (28) to rotate, the movable base (29) and the rack (32) can be driven to move backwards, the rack (32) drives the first gear (26) to rotate in the counterclockwise direction, the first gear (26) drives the two laser instruments (1) and the two pointers (25) to rotate forwards and incline through the rotating shaft (23), and when the pointers (25) rotate to the proper angle positions on the corresponding angle measurement scale lines, the angle adjustment of the laser instruments (1) is proper;
s6: when the height of the laser instrument (1) is adjusted, the second knob (42) is rotated in the forward direction to enable the laser instrument to sequentially pass through the connecting shaft (41), the second bevel gear (40) and the first bevel gear (39) to drive the second screw rod (38) to rotate, the second screw rod (38) rotates in the second threaded hole and moves upwards, the second screw rod (38) drives the rectangular box (36) to move upwards, the rectangular box (36) drives the rectangular outer pipe (35) and the protective box (2) to move upwards, the protective box (2) drives the top plate (4) to move upwards through the two guide rods (3), the two laser instruments (1) are finally driven to move upwards, and the height of the two laser instruments (1) is adjusted;
s7: after the laser instrument protection box is used, the second U-shaped handle (16) is pulled upwards again, the compression spring (12) is compressed again, the first U-shaped handle (15) moves rightwards, so that the first U-shaped handle (15) moves rightwards to enable the first U-shaped handle to drive the two laser instruments (1) connected with the bottoms to move rightwards into the protection box (2), and the two laser instruments (1) are stored and protected.
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| CN212427048U (en) * | 2020-06-10 | 2021-01-29 | 中电建路桥集团有限公司 | Foundation compactness detection device |
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| WO2019230151A1 (en) * | 2018-05-28 | 2019-12-05 | アルプスアルパイン株式会社 | Angle detecting sensor |
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| CN211401175U (en) * | 2020-02-21 | 2020-09-01 | 郑洪勇 | Portable gradiometer for land surveying and mapping |
| CN211234515U (en) * | 2020-03-13 | 2020-08-11 | 李军艳 | Portable environment monitoring equipment |
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| CN213632084U (en) * | 2021-01-06 | 2021-07-06 | 毛小超 | Detection device for building engineering supervision |
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| CN210486896U (en) * | 2019-11-22 | 2020-05-08 | 华铖 | Slope fixing device of laser direction indicator for mine measurement |
| CN212427048U (en) * | 2020-06-10 | 2021-01-29 | 中电建路桥集团有限公司 | Foundation compactness detection device |
| CN212906296U (en) * | 2020-10-19 | 2021-04-06 | 福建新创电力科技有限公司 | Safety protection equipment for network information safety product |
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