CN113340394B - Integral shear beam type sensor - Google Patents
Integral shear beam type sensor Download PDFInfo
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- CN113340394B CN113340394B CN202110458059.5A CN202110458059A CN113340394B CN 113340394 B CN113340394 B CN 113340394B CN 202110458059 A CN202110458059 A CN 202110458059A CN 113340394 B CN113340394 B CN 113340394B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/02—Arrangements of bearings
- G01G21/10—Floating suspensions; Arrangements of shock absorbers
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Abstract
The invention discloses an integral shear beam type sensor which structurally comprises a connector lug, a connecting bolt, a connecting plate, an installation bottom plate, a main body and a protection device.
Description
Technical Field
The invention relates to the field of sensors, in particular to an integral shear beam type sensor.
Background
In modern industry, weighing sensor is very extensive in each industrial field application, and shear beam weighing sensor in the sensor is because its mounting means is simple and convenient, and shear beam sensor is a small, the bearing equipment that the precision is high, and shear beam sensor has the stable performance, and the mounting height is low, characteristics such as anti overload capacity is strong, through the supplementary shear beam sensor activity of protective element, when using shear beam sensor, needs the place that improves:
when using shear beam type sensor, weigh the article that needs to weigh through shear beam type sensor, shear beam type sensor is at the in-process of weighing, all directly places the article on weighing machine, and the sensor can receive an instantaneous power, because do not have the protective element on the sensor to assist for the weight of article can direct action on to the sensor, leads to the sensor to appear damaging, and then causes the unsafe condition of weighing.
Disclosure of Invention
Aiming at the defects in the prior art, the invention is realized by the following technical scheme: the utility model provides an integral shear beam type sensor, its structure includes connector lug, connecting bolt, connecting plate, mounting plate, main part, protection device, the connector lug is put through with the main part mutually, be equipped with two connecting bolt in the main part, the main part passes through connecting bolt and connects on mounting plate, mounting plate meets with protection device, the one end that connecting bolt was kept away from to the main part is equipped with connecting plate and both fixed connection.
As a further optimization of the invention, the protection device comprises a clamping groove, a clamping component, a limiting block and a protection component, wherein the clamping groove is fixedly connected with the limiting block, the protection component connected with the clamping groove is arranged in the clamping groove, the clamping component is arranged on the protection component, and one end of the clamping component, far away from the protection component, is connected with the installation bottom plate.
The clamping assembly comprises a connecting plate, a sliding part, a sliding block, a telescopic plate, a tight suction element, a traction strip and a clamping plate, wherein the connecting plate is fixedly connected with the clamping plate, one end of the connecting plate, far away from the clamping plate, is connected with the sliding part, the sliding part is provided with two sliding blocks which are movably connected with each other, the telescopic plate connected with the two sliding blocks is arranged between the two sliding blocks, the traction strip is arranged inside the telescopic plate, one side, facing the telescopic plate, of each sliding block is provided with the tight suction element inserted with the corresponding sliding block, the clamping plate is connected with the protection assembly, and the tight suction element is connected with the installation bottom plate.
As a further optimization of the invention, the tight suction element comprises an adsorption disc, an inflatable cushion, a cross clamp, an elastic part and a shell, wherein the adsorption disc is connected with the inflatable cushion, the side of the inflatable cushion, which is far away from the adsorption disc, is provided with the cross clamp connected with the adsorption disc, the elastic part is installed in the cross clamp, the cross clamp is connected with the shell, the shell is inserted and embedded on the sliding block, and the adsorption disc is connected with the installation bottom plate.
As a further optimization of the invention, the adsorption plate comprises a plate body, support rods, auxiliary sheets and adsorption sheets, wherein a plurality of adsorption sheets are arranged inside the plate body, four support rods are arranged on the plate body, the support rods are inserted on the plate body in a penetrating manner, one ends of the support rods, which are far away from the plate body, are connected with the auxiliary sheets, the plate body is connected with the inflatable cushion, and the auxiliary sheets and the adsorption sheets are connected with the installation bottom plate.
As a further optimization of the invention, the protection assembly comprises a movable cavity, a top support assembly, a movable plate, a compression piece, a support rod and a joint, wherein the top support assembly is arranged in the movable cavity, the movable plate is arranged on both sides of the top support assembly, the top support assembly penetrates through the movable plate and is buckled with the joint, the joint is fixedly connected to the compression piece, the bottom of the movable cavity is provided with three support rods, the movable cavity is arranged in the clamping groove, and the movable plate is in sliding connection with the clamping plate.
The invention further optimizes the content, the top support component comprises an elastic pressing top piece, a damping spring, a triangular guide block, a laminating rod and a movable sliding plate, wherein the two ends of the damping spring are connected with the elastic pressing top piece, one end of the elastic pressing top piece, far away from the damping spring, is connected with the triangular guide block and the laminating rod, the bottom of the triangular guide block is provided with the movable sliding plate which is connected with the triangular guide block and the laminating rod in a sliding manner, the movable sliding plate is arranged in the movable cavity, and the elastic pressing top piece penetrates through the movable plate and is buckled with a joint.
The elastic pressing top piece comprises a buckle, a bent steel plate, a reinforcing piece and a connecting block, the buckle is fixedly connected with the connecting block, one end, far away from the buckle, of the connecting block is connected with the bent steel plate, the reinforcing piece connected with the bent steel plate is arranged inside the bent steel plate, one end of the reinforcing piece is inserted into the connecting block, the bent steel plate is connected with a damping spring, the bent steel plate is connected with a triangular guide block and a laminating rod, and the buckle penetrates through a moving plate and is buckled with a joint.
As a further optimization of the invention, the elastic pressing ejecting piece is provided with two layers, and the two layers of elastic pressing ejecting pieces are in a bent arc structure and are connected in parallel through the damping spring.
Advantageous effects
The integral shear beam type sensor has the following beneficial effects:
1. according to the invention, through the combined arrangement of the connecting plate, the sliding parts, the sliding blocks, the telescopic plate, the tight suction element, the pulling strip and the clamping plate, a worker opens the two sliding blocks outwards, the mounting base plate is arranged between the two sliding blocks, the two sliding blocks can retract inwards under the action of the telescopic plate and the pulling strip to be tightly pressed on the two sides of the mounting base plate, the position of the main body is effectively fixed and positioned, and the main body can be stably induced.
2. According to the invention, through the combined arrangement of the movable cavity, the top support assembly, the movable plate, the compression piece, the support rod and the joint, the main body can transmit gravity to the top support assembly through the clamping assembly when the main body is subjected to the gravity of an object, the top support assembly can contract downwards after being pressed and expand to two sides to extrude the compression piece, the main body is buffered through the mutual matching of the compression piece and the support rod, the main body is prevented from being directly weighted and damaged, the use effect of the main body is ensured, and the object can be accurately weighed.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of an integral shear beam sensor of the present invention;
fig. 2 is a schematic view of the internal structure of the protection device of the present invention.
FIG. 3 is a side view of the retaining assembly of the present invention.
FIG. 4 is a cross-sectional view of a suction member according to the present invention.
FIG. 5 is a schematic side view of an adsorption plate according to the present invention.
Fig. 6 is a schematic view of the internal structure of the shield assembly of the present invention.
FIG. 7 is a cross-sectional view of the top support assembly of the present invention.
Fig. 8 is a schematic view of the internal structure of the spring top member of the present invention.
In the figure: the connector lug 1, the connecting bolt 2, the connecting plate 3, the mounting base plate 4, the main body 5, the protection device 6, the clamping groove 61, the clamping component 62, the limiting block 63, the protective component 64, the connecting plate 621, the sliding part 622, the sliding block 623, the expansion plate 624, the suction element 625, the pulling strip 626, the clamping plate 627, the suction disc 251, the inflatable cushion 252, the cross clamp 253, the elastic element 254, the shell 255, the disc body X1, the supporting rod X2, the auxiliary plate X3, the suction plate X4, the movable cavity 641, the jacking component 642, the movable plate 643, the compression element 644, the supporting rod 645, the joint 646, the elastic jacking element 421, the damping spring 422, the triangular guide block 423, the overlying rod 424, the movable sliding plate 425, the clamping buckle W1, the bent steel plate W2, the reinforcing element W3 and the connecting block W4.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an integral shear beam type sensor, its structure includes connector lug 1, connecting bolt 2, connecting plate 3, mounting plate 4, main part 5, protection device 6, connector lug 1 and main part 5 switch on mutually, be equipped with two connecting bolt 2 on the main part 5, main part 5 passes through connecting bolt 2 and connects on mounting plate 4, mounting plate 4 and protection device 6 meet mutually, the one end that connecting bolt 2 was kept away from to main part 5 is equipped with connecting plate 3 and both fixed connection.
Referring to fig. 2, the protection device 6 includes a clamping groove 61, a clamping component 62, a limiting block 63, and a protection component 64, the clamping groove 61 is fixedly connected to the limiting block 63, the protection component 64 connected to the clamping groove 61 is disposed inside the clamping groove 61, the clamping component 62 is disposed on the protection component 64, and one end of the clamping component 62 far away from the protection component 64 is connected to the installation base plate 4.
Referring to fig. 3, the holding assembly 62 includes a connecting plate 621, a sliding member 622, a sliding block 623, a telescopic plate 624, a fastening element 625, a pulling bar 626, and a clamping plate 627, the connecting plate 621 is fixedly connected to the clamping plate 627, one end of the connecting plate 621 away from the clamping plate 627 is connected to the sliding member 622, the sliding member 622 is provided with two sliding blocks 623, the two sliding blocks 623 are movably connected to each other, the telescopic plate 624 connected to the two sliding blocks 623 is disposed between the two sliding blocks 623, the pulling bar 626 is disposed inside the telescopic plate 624, one side of the sliding block 623 facing the telescopic plate 624 is provided with the fastening element 625 inserted into the sliding block 623, the clamping plate 627 is connected to the protection assembly 64, and the fastening element 625 is connected to the installation base plate 4.
The pulling strip 626 is used for being matched with the telescopic plate 624, the pulling strip 626 is made of elastic materials and has good elastic pulling performance, the telescopic plate 624 can be effectively pulled, and the sliding block 623 can fixedly clamp the installation bottom plate 4.
Referring to fig. 4, the tightening element 625 includes an absorption disk 251, an air cushion 252, a cross clip 253, an elastic member 254, and a housing 255, the absorption disk 251 is connected to the air cushion 252, the cross clip 253 connected to the absorption disk 251 is disposed on a side of the air cushion 252 away from the absorption disk 251, the elastic member 254 is installed inside the cross clip 253, the cross clip 253 is connected to the housing 255, the housing 255 is inserted into a slider 623, and the absorption disk 251 is connected to the installation base plate 4.
The air cushion 252 is used for matching with the adsorption disk 251, the adsorption disk 251 and the installation base plate 4 are tightly pressed together, and the air between the adsorption disk 251 and the installation base plate 4 can be exhausted through the air cushion 252, so that the connection position between the adsorption disk 251 and the installation base plate 4 is tightly sucked together in a vacuum state.
Referring to fig. 5, the adsorption plate 251 includes a plate body X1, a support rod X2, an auxiliary plate X3, and an adsorption plate X4, a plurality of adsorption plates X4 are disposed inside the plate body X1, four support rods X2 are disposed on the plate body X1, the support rod X2 is inserted on the plate body X1 in a penetrating manner, one end of the support rod X2, which is far away from the plate body X1, is connected to the auxiliary plate X3, the plate body X1 is connected to an inflatable cushion 252, and the auxiliary plate X3 and the adsorption plate X4 are connected to the mounting base plate 4.
The auxiliary sheet X3 is used for matching with an adsorption sheet X4, the adsorption sheet X4 is made of rubber materials, a plurality of adsorption sheets X4 are tightly adsorbed in the middle of the installation bottom plate 4 by adopting the adsorption effect of a sucker, four auxiliary sheets X3 are evenly and flatly attached to four edges of the installation bottom plate 4, and the auxiliary sheets X3 are effectively matched with the adsorption sheet X4 to fix and adsorb the installation bottom plate 4.
Example two
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an integral shear beam type sensor, its structure includes connector lug 1, connecting bolt 2, connecting plate 3, mounting plate 4, main part 5, protection device 6, connector lug 1 and main part 5 switch on mutually, be equipped with two connecting bolt 2 on the main part 5, main part 5 passes through connecting bolt 2 and connects on mounting plate 4, mounting plate 4 and protection device 6 meet mutually, the one end that connecting bolt 2 was kept away from to main part 5 is equipped with connecting plate 3 and both fixed connection.
Referring to fig. 2, the protection device 6 includes a clamping groove 61, a clamping component 62, a limiting block 63, and a protection component 64, the clamping groove 61 is fixedly connected to the limiting block 63, the protection component 64 connected to the clamping groove 61 is disposed inside the clamping groove 61, the clamping component 62 is disposed on the protection component 64, and one end of the clamping component 62 far away from the protection component 64 is connected to the installation base plate 4.
Referring to fig. 6, the shielding assembly 64 includes a movable cavity 641, a top support assembly 642, a moving plate 643, a compression element 644, a support rod 645 and a joint 646, the top support assembly 642 is installed inside the movable cavity 641, the moving plate 643 is installed on both sides of the top support assembly 642, the top support assembly 642 penetrates through the moving plate 643 and is fastened to the joint 646, the joint 646 is fixedly connected to the compression element 644, the three support rods 645 are installed at the bottom of the movable cavity 641, the movable cavity 641 is installed inside the clamping groove 61, and the moving plate 643 is slidably connected to the clamping plate 627.
The supporting rods 645 are used for matching with the top supporting assembly 642, and the top supporting assembly 642 is compressed downwards by the gravity of the object, so that the pressure applied to the top supporting assembly 642 is dispersed and reduced through the three supporting rods 645.
Referring to fig. 7, the top supporting assembly 642 includes a pressing top member 421, a damping spring 422, a triangular guide block 423, a laminating rod 424, and a movable sliding plate 425, the two ends of the damping spring 422 are connected to the pressing top member 421, one end of the pressing top member 421 away from the damping spring 422 is connected to the triangular guide block 423 and the laminating rod 424, the bottom of the triangular guide block 423 is provided with the movable sliding plate 425 and the movable sliding plate is slidably connected to the bottom of the triangular guide block 423, the movable sliding plate 425 is installed inside the movable cavity 641, and the pressing top member 421 penetrates through the movable plate 643 and is fastened to the joint 646.
Referring to fig. 7, the elastic pressing top member 421 has two layers, and the two layers of elastic pressing top members 421 are curved structures and are connected in parallel through the damping spring 422.
The damping spring 422 is used for matching with the elastic pressing top piece 421, the elastic pressing top piece 421 is pressed and is downwards conducted to the other elastic pressing top piece 421 through the damping spring 422, the two elastic pressing top pieces 421 are simultaneously pressed and are outwards expanded, the two elastic pressing top pieces 421 are limited through the damping spring 422, and the elastic pressing top pieces 421 are prevented from being pressed and moving misplacement.
Referring to fig. 8, the pressing top 421 includes a buckle W1, a curved steel plate W2, a reinforcement W3, and a joint W4, the buckle W1 is fixedly connected to the joint W4, an end of the joint W4 away from the buckle W1 is connected to the curved steel plate W2, the reinforcement W3 connected to the curved steel plate W2 is disposed inside the curved steel plate W2, an end of the reinforcement W3 is inserted into the joint W4, the curved steel plate W2 is connected to the damper spring 422, the curved steel plate W2 is connected to the triangular guide block 423 and the overlying rod 424, and the buckle W1 penetrates through the moving plate 643 and is fastened to the joint 646.
The reinforcing piece W3 is used for being matched with the bent steel plate W2, the bent steel plate W2 contracts downwards when being pressed, the reinforcing piece W3 contracts downwards along with the change of the bent steel plate W2, the reinforcing piece W3 is made of a metal material, the reinforcing property is good, the bent steel plate W2 can be reinforced, and the bent steel plate W2 can be quickly reset under the condition that the bent steel plate W2 is not pressed.
The working principle of the above technical solution is explained as follows:
when the invention is used, an operator manually opens the two sliding blocks 623 outwards, the sliding blocks 623 slide outwards under the action of the sliding parts 622, the telescopic plate 624 can extend outwards, the operator places the mounting base plate 4 on the telescopic plate 624 in a balanced and stable manner, the operator releases the sliding blocks 623, the sliding blocks 623 can pull the telescopic plate 624 inwards under the condition that the sliding blocks 623 are not stressed, the telescopic plate 624 can drive the sliding blocks 623 to slide inwards under the action of the sliding parts 622, so that the adsorption sheet X4 on the tray body X1 can be attached to the middle position of the mounting base plate 4, the auxiliary sheets X3 on the four support rods X2 at two sides of the tray body X1 can be attached to two sides of the mounting base plate 4 in a matching manner, the adsorption sheet X4 is effectively matched to position and adsorb the mounting base plate 4, the displacement of the main body 5 caused by gravity is prevented, the auxiliary sheets X3 and the adsorption sheet X4 are flatly attached to the mounting base plate 4, the worker pushes the two sliders 623 inwards, after the sliders 623 are pushed to a certain position, the sliders 623 are buckled with the buckles in the sliders 622, so that the sliders 623 are not prone to displacement and shaking after adjustment, the sliders 623 can guide pressure to the cross clamp 253 by the pushing force of the worker, the cross clamp 253 is composed of two triangles and has good stability, the cross clamp 253 is supported by the elastic piece 254 in cooperation with the cross clamp 253, the cross clamp 253 can effectively conduct the pressure to the inflatable cushion 252, the inflatable cushion 252 guides the pressure to the adsorption disc 251, the adsorption disc 251 and the mounting base plate 4 are tightly pressed together, gas between the adsorption disc 251 and the mounting base plate 4 is exhausted through the inflatable cushion 252, the gas between the adsorption disc 251 and the mounting base plate 4 is exhausted outwards to form a vacuum state and is tightly sucked together, and the main body 5 is effectively and stably mounted on the expansion plate 624, so that the body 5 can stably weigh the object.
When the main body 5 weighs an object, the gravity of the object is transmitted to the main body 5, after the main body 5 receives the gravity, the gravity is transmitted to the connecting plate 621, the connecting plate 621 receives the gravity and drives the clamping plate 627 to move downwards under the action of the moving plate 643, the gravity of the object is vertically transmitted downwards to the bent steel plate W2 by the clamping plate 627, the gravity is uniformly dispersed and transmitted to the two bent steel plates W2 through the damping springs 422, so that the two bent steel plates W2 can be stressed simultaneously, the bent steel plates W2 are stressed to compress and extrude the damping springs 422 downwards, the bent steel plates W2 are reinforced through the reinforcing piece W3, the bent steel plates W2 are prevented from being deformed due to overlarge stress, the bent steel plates W2 can expand outwards under the stress, the connecting block W4 can push and push the connector 646 along with the outward expansion of the bent steel plates W2, the connector 646 is stressed to guide the pressure to the compression piece 644, and the compression piece 644 can contract inwards, after the compression element 644 contracts, two curved steel plates W2 form two parallel lines, the curved steel plate W2 guides the pressure upwards to the triangular guide block 423 and the laminating rod 424, the laminating rod 424 is compressed to be laminated and sleeved together, the triangular guide block 423 slides outwards on the movable sliding plate 425 after being compressed, the triangular guide block 423 abuts against the bottom of the moving plate 643 after sliding to a certain position, the position of the triangular guide block 423 is limited through the moving plate 643, so that the triangular guide block 423 can support the curved steel plate W2 in cooperation with the laminating rod 424 to prevent the curved steel plate W2 from bending downwards, the triangular guide block 423 and the laminating rod 424 cooperate to disperse the force on the curved steel plate W2 to the three support rods 645, the pressure on the curved steel plate W2 is effectively reduced, the curved steel plate W2 and the support rods 645 can cooperate to buffer and protect the main body 5, and the main body 5 is effectively protected, guarantee that main part 5 can not directly receive heavily and appear damaging for main part 5 can be stably weighed the article, improves the weighing precision of main part 5 to the article.
In conclusion, the novel integral shear beam type sensor is formed by combining the connector lug, the connecting bolt, the connecting plate, the mounting base plate, the main body and the protection device, when the shear beam type sensor is used, the mounting base plate is clamped and fixed through the clamping component, the stability of the main body is guaranteed, the main body can stably weigh an object, in the weighing process, the clamping component can transmit the gravity of the main body to the movable cavity, the main body is buffered and protected through the matching of the jacking component and the support rod, the main body is prevented from being directly damaged due to the weight, the main body can stably weigh the object, and the weighing accuracy of the main body on the object is improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides an integral shear beam type sensor, its structure includes connector lug (1), connecting bolt (2), connecting plate (3), mounting plate (4), main part (5), protection device (6), its characterized in that:
the connector lug (1) is communicated with the main body (5), the main body (5) is connected to the mounting bottom plate (4) through the connecting bolt (2), the mounting bottom plate (4) is connected with the protection device (6), and the main body (5) is fixedly connected with the connecting plate (3);
the protection device (6) comprises a clamping groove (61), a clamping component (62), a limiting block (63) and a protection component (64), wherein the clamping groove (61) is fixedly connected with the limiting block (63), the clamping groove (61) is connected with the protection component (64), the clamping component (62) is arranged on the protection component (64), and the clamping component (62) is connected with the installation bottom plate (4);
the clamping assembly (62) comprises a connecting plate (621), a sliding piece (622), a sliding block (623), a telescopic plate (624), a tightening element (625), a pulling strip (626) and a clamping plate (627), the connecting plate (621) is fixedly connected with the clamping plate (627), the connecting plate (621) is connected with the sliding piece (622), the sliding piece (622) is movably connected with the sliding block (623), the sliding block (623) is connected with the telescopic plate (624), the pulling strip (626) is arranged inside the telescopic plate (624), the sliding block (623) is inserted and embedded with the tightening element (625), the clamping plate (627) is connected with the protective assembly (64), and the tightening element (625) is connected with the mounting base plate (4);
the suction element (625) comprises an adsorption disc (251), an inflatable cushion (252), a cross clamp (253), an elastic piece (254) and a shell (255), the adsorption disc (251) is connected with the inflatable cushion (252), the inflatable cushion (252) is connected with the cross clamp (253), the elastic piece (254) is installed on the cross clamp (253), the cross clamp (253) is connected with the shell (255), the shell (255) is inserted and embedded in a sliding block (623), and the adsorption disc (251) is connected with the installation base plate (4);
the adsorption plate (251) comprises a plate body (X1), a support rod (X2), an auxiliary plate (X3) and an adsorption plate (X4), wherein the plate body (X1) is provided with the adsorption plate (X4), the support rod (X2) penetrates through the plate body (X1) and is inserted into the support rod (X2), the support rod (X2) is connected with the auxiliary plate (X3), the plate body (X1) is connected with an inflatable cushion (252), and the auxiliary plate (X3) and the adsorption plate (X4) are connected with the installation bottom plate (4);
the protection assembly (64) comprises a movable cavity (641), a top support assembly (642), a moving plate (643), a compression element (644), a stay rod (645) and a joint (646), wherein the top support assembly (642) is installed in the movable cavity (641), the top support assembly (642) penetrates through the moving plate (643) and is buckled with the joint (646), the joint (646) is fixedly connected to the compression element (644), the stay rod (645) is installed in the movable cavity (641), the movable cavity (641) is arranged on the clamping groove (61), and the moving plate (643) is connected with the clamping plate (627) in a sliding mode;
the jacking component (642) comprises a spring jacking piece (421), a damping spring (422), a triangular guide block (423), a laminating rod (424) and a movable sliding plate (425), wherein the two ends of the damping spring (422) are connected with the spring jacking piece (421), the spring jacking piece (421) is connected with the triangular guide block (423) and the laminating rod (424), the triangular guide block (423) is connected with the movable sliding plate (425) in a sliding manner, the movable sliding plate (425) is installed on a movable cavity (641), and the spring jacking piece (421) penetrates through a movable plate (643) and is fastened with a joint (646);
the elastic pressing top piece (421) comprises a buckle (W1), a bent steel plate (W2), a reinforcing piece (W3) and a connecting block (W4), wherein the buckle (W1) is fixedly connected with the connecting block (W4), the connecting block (W4) is connected with the bent steel plate (W2), the bent steel plate (W2) is connected with the reinforcing piece (W3), the reinforcing piece (W3) is inserted and embedded in the connecting block (W4), the bent steel plate (W2) is connected with a damping spring (422), the bent steel plate (W2) is connected with a triangular guide block (423) and a laminated rod (424), and the moving plate buckle (W1) penetrates through a moving plate (643) and is buckled with a joint (646);
the elastic pressing top piece (421) is provided with two layers, and the two layers of elastic pressing top pieces (421) are of a bent arc structure and are connected in parallel through damping springs (422).
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