CN109404594A - A kind of unidirectional opposite opened cut-off gate - Google Patents
A kind of unidirectional opposite opened cut-off gate Download PDFInfo
- Publication number
- CN109404594A CN109404594A CN201811567701.8A CN201811567701A CN109404594A CN 109404594 A CN109404594 A CN 109404594A CN 201811567701 A CN201811567701 A CN 201811567701A CN 109404594 A CN109404594 A CN 109404594A
- Authority
- CN
- China
- Prior art keywords
- cut
- wall
- ball
- pipeline
- bolted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gates (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a kind of unidirectional opposite opened cut-off gates of cut-off gate technical field, including pipeline, roof of pipeline or so is welded with support frame, the roof of support frame is bolted with the first electric pushrod, the rear end of first electric pushrod is bolted with the first connection pin rod, the rear end of first connection pin rod is connected with first connecting rod, the rear end of first connecting rod is bolted with the first connection sleeve, the rear end of first connection sleeve is connected with the first execution arm, the outer wall of eccentric wheel shaft is socketed with rotating cylinder, the outer wall of rotating cylinder is welded with eccentric wheel, the outer wall even circumferential of eccentric wheel shaft is connected with the first ball, even circumferential is provided with mounting hole before and after the inner wall of rotating cylinder, the inner cavity of mounting hole is connected with the second ball, the present apparatus reduces the risk that fixed contact moving contact is adhered, it can prevent resistance to adherence from declining, improve the service life of device, Structure is simple, low in cost.
Description
Technical field
The invention discloses a kind of unidirectional opposite opened cut-off gates, specially cut-off gate technical field.
Background technique
The advantages of cut-off gate is one kind of valve, gate valve is that flow resistance is small, open, closing forces it is small, medium can be positive and negative
The advantages of flowing, the disadvantage is that structure is complicated, size is larger, and sealing is easy to wear, cut-off gate is simple in structure, good airproof performance, manufacture
More convenient with safeguarding, the disadvantage is that flow resistance is big, unlatching, closing forces are also larger, therefore the opening and closing of cut-off gate need greatly
Cut-off gate is opened and closed in type motor, and then cut-off gate mostly uses travel switch greatly to control the opening and closing of cut-off gate, but
Existing cut-off gate travel switch service life is low, and fixed contact moving contact is easy to happen the risk of adhesion.
Summary of the invention
It is mentioned above in the background art existing to solve the purpose of the present invention is to provide a kind of unidirectional opposite opened cut-off gate
Some cut-off gate travel switch service life is low, and fixed contact moving contact is easy to happen the risk of adhesion.
To achieve the above object, the invention provides the following technical scheme: a kind of unidirectional opposite opened cut-off gate, including pipeline,
The roof or so of the pipeline is welded with support frame, and the roof of support frame as described above is bolted with the first electric pushrod, and described first
The rear end of electric pushrod is bolted with the first connection pin rod, and the rear end of the first connection pin rod is connected with first connecting rod, described
The rear end of first connecting rod is bolted with the first connection sleeve, and the rear end of the first connection sleeve is connected with the first execution arm, institute
It states the roof of pipeline or so rear portion and is connected with cut-off door pivot, the bottom end of the cut-off door pivot is through the outer up and down of pipeline
Wall, one end that the outer wall top of the shaft executes arm with first are clamped, and shaft described in two groups is mutually welded with cut-off depending on wall
Door frame, the rear wall of the cut-off door frame are welded with cut-off door board, and the cut-off door board is located at the inner cavity of pipeline, described
The left and right outer wall of pipeline passes through bearing block and is hinged with support base, and the top inner cavity of the support base is connected with second and electronic pushes away
Bar, the top of second electric pushrod are bolted with the second connection pin rod, and the top of the second connection pin rod is connected with second
Connecting rod, the top of second connecting rod are bolted with the second connection sleeve, and the left and right outer wall top and the bottom of the pipeline lead to respectively
It crosses bearing block and is hinged with the second execution arm and third execution arm, one end that the one of the second connection sleeve and second execute arm is sold
It connects, is connected with execution bar between one end of the second execution arm and one end of third execution arm, the third executes the bearing of arm
Seat junction outer wall is welded with eccentric wheel shaft, and the outer wall of the eccentric wheel shaft is socketed with rotating cylinder, the outer wall weldering of the rotating cylinder
It is connected to eccentric wheel, the left and right outer wall lower part of the pipeline is welded with support plate, and the roof outer end of the support plate is bolted with row
Cheng Kaiguan, contact end in contact of the one end of the eccentric wheel with travel switch, the outer wall even circumferential card of the eccentric wheel shaft
It is connected to the first ball, first ball is located at the inner cavity of rotating cylinder, and even circumferential is provided with mounting hole before and after the inner wall of the rotating cylinder,
The inner cavity of the mounting hole is connected with the second ball, and first ball is located between two group of second ball, second ball
One end be welded with connecting spring, one end of the connecting spring and the bottom wall of inner cavity of mounting hole weld.
Preferably, the inner cavity antetheca of the pipeline is bolted with limit plate up and down.
Preferably, the antetheca of the cut-off door board is contacted with the rear wall of limit plate.
Preferably, the junction of the cut-off door pivot and cut-off door frame is welded with reinforcing rib.
Preferably, the depth of the mounting hole is greater than the outer diameter of the second ball.
Compared with prior art, the beneficial effects of the present invention are:
1) the first connection of present apparatus setting pin rod, first connecting rod, the first connection sleeve and first execute arm, pass through starting
First electric pushrod extends so that first executes the dynamic cut-off door pivot of armband, cut-off door frame and cut-off door board rotation, passes through
The length that first connecting rod adjustment first connecting rod is located in the first connection sleeve is rotated, realizes cut-off door board rotation amplitude,
The dynamic load for reducing the first electric pushrod of armband is executed by first simultaneously；
2) eccentric wheel on eccentrically weighted shaft is arranged in control the unlatching and closure of limit switch, eccentric wheel and row in the present apparatus
When journey closes the switch, limit switch closure, closing of circuit, when eccentric wheel is separated with travel switch, limit switch is opened, circuit
It disconnects, to reach the open and close of accurately control baffle door, while it is movable to reduce the fixed contact on limit switch
The risk that contact is adhered can prevent resistance to adherence from declining；
3) the first ball of eccentric wheel shaft outer wall and the second ball of rotating cylinder inwall mounting hole and company is arranged in the present apparatus
Spring is connect, when eccentric wheel and travel switch contact, when eccentric wheel shaft continues to rotate the eccentric wheel with movable eccentric wheel shaft outer wall
When rotation, the first ball rotates so that the second ball is forced into mounting hole, and sleeve is not following eccentric wheel shaft to rotate at this time,
It avoids travel switch stress excessive, causes travel switch impaired, improve travel switch service life, the present apparatus reduces fixed touching
The risk that point moving contact is adhered, can prevent resistance to adherence from declining, and improve the service life of device, structure letter
It is single, it is low in cost.
Detailed description of the invention
Fig. 1 is that cut-off gate of the present invention faces schematic cross-sectional view；
Fig. 2 is cut-off gate schematic top plan view of the present invention；
Fig. 3 is cut-off gate left view schematic cross-sectional view of the present invention；
Fig. 4 is eccentric wheel left view schematic diagram of the present invention；
Fig. 5 is eccentric wheel shaft left view schematic cross-sectional view of the present invention.
In figure: 1 pipeline, 2 support frames, 3 first electric pushrods, 4 first connection pin rods, 5 first connecting rods, 6 first connections
Sleeve, 7 first execution arms, 8 cut-off door pivots, 9 cut-off door frames, 10 cut-off door boards, 11 support bases, 12 second electronic push away
Bar, 13 second connection pin rods, 14 second connecting rods, 15 second connection sleeves, 16 second execution arms, 17 execution bars, 18 thirds are held
Row arm, 19 eccentric wheel shafts, 20 support plates, 21 travel switches, 22 rotating cylinders, 23 eccentric wheels, 24 first balls, 25 mounting holes, 26
Second ball, 27 connecting springs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of unidirectional opposite opened cut-off gate, reduces the danger that fixed contact moving contact is adhered
Property, it can prevent resistance to adherence from declining, please refer to Fig. 1-3, including pipeline 1, the roof of pipeline 1 or so is welded with support frame 2,
The roof of support frame 2 is bolted with the first electric pushrod 3, and the rear end of the first electric pushrod 3 is bolted with the first connection pin rod 4, and first
The rear end of connection pin rod 4 is connected with first connecting rod 5, and the rear end of first connecting rod 5 is bolted with the first connection sleeve 6, by twisting
Turn first connecting rod 5, adjustment first connecting rod 5 is located at the length in the first connection sleeve 6, to adjust the angle of rotation of shaft 8
The rear end of degree, the first connection sleeve 6 is connected with the first execution arm 7, and roof of pipeline 1 or so rear portion is connected with cut-off door pivot
8, the outer wall up and down of pipeline 1, one end card that the outer wall top of shaft 8 executes arm 7 with first are run through in the bottom end of cut-off door pivot 8
It connects, extends the electronic first connection movement of pin rod 4, the mobile drive first of the first connection pin rod 4 by starting the first electric pushrod 3
Connecting rod 5 and the first connection sleeve 6 are mobile, and the first connection sleeve 6 rotates the first execution arm 7 around shaft 8, while the
One, which executes arm 7, drives shaft 8 to rotate, and by lever principle, reduces the load of the first electric pushrod 3, the mutually view of two groups of shafts 8
Wall is welded with cut-off door frame 9, and the rear wall of cut-off door frame 9 is welded with cut-off door board 10, and cut-off door board 10 is located at pipe
The inner cavity in road 1, the left and right outer wall of pipeline 1 pass through bearing block and are hinged with support base 11, and the top inner cavity of support base 11 is connected with
Second electric pushrod 12, the top of the second electric pushrod 12 are bolted with the second connection pin rod 13, the top of the second connection pin rod 13
It is connected with the second connecting rod 14, the top of the second connecting rod 14 is bolted with the second connection sleeve 15, above and below the left and right outer wall of pipeline 1
Portion passes through bearing block respectively and is hinged with the second execution arm 16 and third execution arm 18, and the one and second of the second connection sleeve 15 executes
One end pin joint of arm 16 is connected between one end of second execution arm 16 and one end of third execution arm 18 and executes bar 17, please refers to
Fig. 3-5, the bearing block junction outer wall that third executes arm 18 are welded with eccentric wheel shaft 19, the outer wall socket of eccentric wheel shaft 19
There is rotating cylinder 22, the outer wall of rotating cylinder 22 is welded with eccentric wheel 23, and when the second execution arm 16 is rotated around bearing block, second executes arm 16
Rotation with movable eccentric wheel shaft 19, referring to Fig. 2, the left and right outer wall lower part of pipeline 1 is welded with support plate 20, support plate 20
Roof outer end be bolted with travel switch 21, one end of eccentric wheel 23 and the contact end in contact of travel switch 21, eccentric wheel shaft
19 outer wall even circumferential is connected with the first ball 24, and the first ball 24 is located at the inner cavity of rotating cylinder 22, the inner wall front and back of rotating cylinder 22
Even circumferential is provided with mounting hole 25, and the inner cavity of mounting hole 25 is connected with the second ball 26, and the first ball 24 is located at two group of second rolling
Between pearl 26, when eccentric wheel shaft 19 being avoided to rotate, the first ball 24 is separated with the second ball 26, and rotating cylinder 22 is caused not follow partially
Heart shaft 19 rotates, and one end of the second ball 26 is welded with connecting spring 27, and one end of connecting spring 27 is interior with mounting hole 25
The welding of bottom of chamber wall, when the second ball 26 does not stress, connecting spring 27 restores elongation, and the elongation of connecting spring 27 drives the second ball
26 towards mounting hole 25 opening it is mobile, referring to Fig. 1, the inner cavity antetheca of pipeline 1 is bolted with limit plate, cut-off gate up and down
The antetheca of door-plate 10 is contacted with the rear wall of limit plate, is avoided cut-off door board 10 from rotating transition, is avoided the inner cavity of pipeline 1 that from can not closing
It closes, cut-off door pivot 8 and the junction for ending door frame 9 are welded with reinforcing rib, improve cut-off door pivot 8 and cut-off door frame 9
Between bonding strength, avoid for a long time using cause end door pivot more than 8 end door frame 9 junction be broken, improve this dress
The service life set, referring to Fig. 5, the depth of mounting hole 25 is greater than the outer diameter of the second ball 26, so that the second ball 26 can be complete
The full inner cavity for entering mounting hole 25, reduces the frictional force between the first ball 24 and the second ball 26.
Working principle: the power supply of the first electric pushrod 3 in the present apparatus is separately connected two groups of travel switches 21, is passed through
Elongation and shortening that two groups of travel switches 21 realize the first electric pushrod 3 is respectively started, by the second electric pushrod in the present apparatus
12 and travel switch 21 connect to power supply respectively, as shown in Fig. 2, starting the second electric pushrod 12 elongation, the second electric pushrod 12
Elongation drive the elongation of the second connection pin rod 13, the elongation of the second connection pin rod 13 drives the second connecting rod 14 and the second connection
Sleeve 15 is mobile to upper left side, and the second connecting rod 14 and the second connection sleeve 15 are enclosed to mobile the second execution of the drive arm 16 in upper left side
It is rotated around bearing block, the rotation of the second execution arm 16 drives the one end for executing bar 17 to move to the right, executes one end of bar 17
It drives third to execute arm 18 when moving to the right to rotate around bearing block, as shown in Fig. 4, third executes the rotation band of arm 18
The eccentric wheel shaft 19 of dynamic bearing outer wall rotates, and the rotation of eccentric wheel shaft 19 drives the rotation of rotating cylinder 22 and eccentric wheel 23, such as
Shown in Fig. 2, the rotation of eccentric wheel 23 so that eccentric wheel 23 one end and the contact point contact of travel switch 21, travel switch 21 opens
Dynamic, the first electric pushrod 3 connects to power supply, as shown in figure 5, third executes arm when the second electric pushrod 12 stops not in time
18 and eccentric wheel shaft 19 continue to rotate, as shown in figure 5, due to eccentric wheel 23 with the contact point contact of travel switch 21, partially
The rotation of heart wheel shaft 19 drives the first ball 24 around the axis rotation of eccentric wheel shaft 19, and the first ball 24 squeezes the second ball
26, due to 23 stress of eccentric wheel, the first ball 24 is unable to drive the second ball 26 and rotates around the center of circle of rotating cylinder 22, the second ball
26 towards mounting hole 25 bottom wall of inner cavity it is mobile, 27 forced compression of connecting spring realizes that eccentric wheel 23 does not follow eccentric wheel shaft
19 rotations, as shown in Fig. 2, the elongation of the first electric pushrod 3 drives the elongation of the first connection pin rod 4, the first connection pin rod 4
Elongation drives first connecting rod 5 and the first connection sleeve 6 mobile to upper left side, and first connecting rod 5 and the first connection sleeve 6 are to the left
The first execution arm 7 is driven to rotate when top is mobile around cut-off door pivot 8, first drives cut-off door pivot when executing the rotation of arm 7
8 rotations, as shown in Fig. 1, the rotation of cut-off door pivot 8 drives cut-off door frame 9 and cut-off door board 10 around cut-off door pivot
8 rotations, realize the closure and unlatching of 1 inner cavity of pipeline.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of unidirectional opposite opened cut-off gate, including pipeline (1), it is characterised in that: the roof or so of the pipeline (1) welds
Have support frame (2), the roof of support frame as described above (2) is bolted with the first electric pushrod (3), after first electric pushrod (3)
End is bolted with the first connection pin rod (4), and the rear end of first connection pin rod (4) is connected with first connecting rod (5), and described first
The rear end of connecting rod (5) is bolted with the first connection sleeve (6), and the rear end of first connection sleeve (6) is connected with the first execution
Arm (7), roof of the pipeline (1) or so rear portion are connected with cut-off door pivot (8), the bottom end of cut-off door pivot (8)
Through the outer wall up and down of pipeline (1), one end that the outer wall top of the shaft (8) executes arm (7) with first is clamped, described in two groups
Shaft (8) is mutually welded with cut-off door frame (9) depending on wall, and the rear wall of cut-off door frame (9) is welded with cut-off door board
(10), cut-off door board (10) is located at the inner cavity of pipeline (1), and the left and right outer wall of the pipeline (1) is cut with scissors by bearing block
It is connected to support base (11), the top inner cavity of the support base (11) is connected with the second electric pushrod (12), and described second electronic pushes away
The top of bar (12) is bolted with the second connection pin rod (13), and the top of second connection pin rod (13) is connected with the second connecting rod
(14), the top of second connecting rod (14) is bolted with the second connection sleeve (15), above and below the left and right outer wall of the pipeline (1)
Portion passes through bearing block respectively and is hinged with the second execution arm (16) and third execution arm (18), and described second connects the one of sleeve (15)
One end pin joint for executing arm (16) with second is sold between one end of second execution arm (16) and one end of third execution arm (18)
It is connected to and executes bar (17), the bearing block junction outer wall that the third executes arm (18) is welded with eccentric wheel shaft (19), described
The outer wall of eccentric wheel shaft (19) is socketed with rotating cylinder (22), and the outer wall of the rotating cylinder (22) is welded with eccentric wheel (23), the pipe
The left and right outer wall lower part in road (1) is welded with support plate (20), and the roof outer end of the support plate (20) is bolted with travel switch
(21), one end of the eccentric wheel (23) and the contact end in contact of travel switch (21), the outer wall of the eccentric wheel shaft (19)
Even circumferential is connected with the first ball (24), and first ball (24) is located at the inner cavity of rotating cylinder (22), the rotating cylinder (22)
Even circumferential is provided with mounting hole (25) before and after inner wall, and the inner cavity of the mounting hole (25) is connected with the second ball (26), and described the
One ball (24) is located between two group of second ball (26), and one end of second ball (26) is welded with connecting spring (27),
One end of the connecting spring (27) and the bottom wall of inner cavity of mounting hole (25) weld.
2. a kind of unidirectional opposite opened cut-off gate according to claim 1, it is characterised in that: before the inner cavity of the pipeline (1)
Wall is bolted with limit plate up and down.
3. a kind of unidirectional opposite opened cut-off gate according to claim 2, it is characterised in that: cut-off door board (10)
Antetheca is contacted with the rear wall of limit plate.
4. a kind of unidirectional opposite opened cut-off gate according to claim 1, it is characterised in that: the cut-off door pivot (8) with
The junction of cut-off door frame (9) is welded with reinforcing rib.
5. a kind of unidirectional opposite opened cut-off gate according to claim 1, it is characterised in that: the depth of the mounting hole (25)
Greater than the outer diameter of the second ball (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567701.8A CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567701.8A CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404594A true CN109404594A (en) | 2019-03-01 |
| CN109404594B CN109404594B (en) | 2024-02-20 |
Family
ID=65460885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811567701.8A Active CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404594B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB442321A (en) * | 1935-01-08 | 1936-02-06 | British Thermostat Co Ltd | Improvements in or relating to motor operated valves |
| US3720295A (en) * | 1971-05-19 | 1973-03-13 | Balz H Gmbh Fa | Power positioning apparatus with force dependent shut-off |
| CN101015108A (en) * | 2004-04-30 | 2007-08-08 | 卡梅伦国际公司 | Electric control and supply system |
| CN200946420Y (en) * | 2006-09-15 | 2007-09-12 | 夏聪燎 | Automatic door-closing hinge |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
| CN209278598U (en) * | 2018-12-21 | 2019-08-20 | 无锡市华通电力设备有限公司 | A kind of unidirectional opposite opened cut-off gate |
-
2018
- 2018-12-21 CN CN201811567701.8A patent/CN109404594B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB442321A (en) * | 1935-01-08 | 1936-02-06 | British Thermostat Co Ltd | Improvements in or relating to motor operated valves |
| US3720295A (en) * | 1971-05-19 | 1973-03-13 | Balz H Gmbh Fa | Power positioning apparatus with force dependent shut-off |
| CN101015108A (en) * | 2004-04-30 | 2007-08-08 | 卡梅伦国际公司 | Electric control and supply system |
| CN200946420Y (en) * | 2006-09-15 | 2007-09-12 | 夏聪燎 | Automatic door-closing hinge |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
| CN209278598U (en) * | 2018-12-21 | 2019-08-20 | 无锡市华通电力设备有限公司 | A kind of unidirectional opposite opened cut-off gate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109404594B (en) | 2024-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209278598U (en) | A kind of unidirectional opposite opened cut-off gate | |
| CN201827386U (en) | Connecting rod type sealing valve | |
| CN109404594A (en) | A kind of unidirectional opposite opened cut-off gate | |
| CN105728914B (en) | One kind clamps welded formula soldering turret | |
| CN106824352A (en) | A kind of Chinese herbal medicinal high-efficiency mashing device | |
| CN202040356U (en) | Swing type gate valve | |
| CN202204665U (en) | Durability test device for suspension spherical hinge assembly | |
| CN202596458U (en) | Three-point locking type movable side window in locomotive cab | |
| CN208664973U (en) | Pantagraph current collector and rail vehicle with it | |
| CN212542318U (en) | Novel 220KV circuit breaker three-item linkage double-closing spring mechanism | |
| CN211779033U (en) | Tower front circuit breaker | |
| CN210949316U (en) | Integrated hydraulic hoist totally-enclosed oil tank | |
| CN106044684B (en) | A kind of clamp device | |
| CN210908676U (en) | Single-cylinder butt-clamp clamping mechanism | |
| CN109139944A (en) | A kind of novel movable flap of shut-off valve | |
| CN205723178U (en) | The contact system of automatic transfer switching electric appliance | |
| CN203809714U (en) | Three-rod switch butterfly valve | |
| CN212131341U (en) | Electric butterfly valve capable of being quickly opened and closed | |
| CN209559678U (en) | A kind of hydraulic engineering flashboard quality detection device | |
| CN211695330U (en) | Link mechanism of wing type blade | |
| CN201696685U (en) | Energy-saving bilateral tipping flap valve | |
| CN216519645U (en) | Novel handle does not have round pin flange butterfly valve | |
| CN106761380B (en) | A kind of Rotary table for drilling machine regulating mechanism | |
| CN2331797Y (en) | Stop butterfly valve | |
| CN209762388U (en) | Swing check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214000 zone a, Yangjian Town Industrial Park, Xishan District, Wuxi City, Jiangsu Province (No. 120, Jiaoyang Road) Applicant after: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: No.1, Chunjiang East Road, Dongting Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant before: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |