CN216715266U - Flat gate with sealing function - Google Patents

Flat gate with sealing function Download PDF

Info

Publication number
CN216715266U
CN216715266U CN202122497791.1U CN202122497791U CN216715266U CN 216715266 U CN216715266 U CN 216715266U CN 202122497791 U CN202122497791 U CN 202122497791U CN 216715266 U CN216715266 U CN 216715266U
Authority
CN
China
Prior art keywords
sealing
plate
connecting box
main body
plates
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.)
Active
Application number
CN202122497791.1U
Other languages
Chinese (zh)
Inventor
高连信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Xinlian Hydraulic Mechanical & Electrical Co ltd
Original Assignee
Jiangsu Xinlian Hydraulic Mechanical & Electrical Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Xinlian Hydraulic Mechanical & Electrical Co ltd filed Critical Jiangsu Xinlian Hydraulic Mechanical & Electrical Co ltd
Priority to CN202122497791.1U priority Critical patent/CN216715266U/en
Application granted granted Critical
Publication of CN216715266U publication Critical patent/CN216715266U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Barrages (AREA)

Abstract

The utility model relates to a flat gate with a sealing function, which comprises a main body, a hydraulic cylinder, a sealing mechanism and two water pipes, wherein the sealing mechanism comprises an adjusting component, a connecting box, a connecting rod, a connecting plate and two sealing components, each sealing component comprises a sealing plate, a supporting plate, a movable plate, a first spring, a supporting rod and a protection unit, and the flat gate with the sealing function reduces a gap between the sealing plate and the inner wall of the main body through the sealing mechanism, improves the sealing effect, avoids the influence on the sealing effect due to the abrasion of the sealing plate after long-term work, avoids the phenomenon of water leakage, prolongs the service life of equipment, reduces the maintenance times and improves the reliability of the equipment.

Description

Flat gate with sealing function
Technical Field
The utility model relates to the field of valves, in particular to a flat gate with a sealing function.
Background
The flat gate is a water gate which moves up and down along a vertical track. The three types of the traditional Chinese medicine are an ascending type, a descending type and a horizontal type. The common characteristic is that the water-retaining surface of the door leaf is a plate-type plane, the structure is simple and reliable, and the manufacture, installation and transportation are simple and convenient.
The sealing plate of the existing flat gate always supports against the inner wall of the main body, after the sealing plate moves up and down for a long time, the sealing plate is abraded due to friction force on the compact sealing plate, so that the gap between the sealing plate and the inner wall of the main body is increased, the water leakage phenomenon is caused, the maintenance frequency is increased, and the reliability of the existing flat gate is reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, the flat gate with the sealing function is provided.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a flat gate with a sealing function comprises a main body, a hydraulic cylinder, a sealing mechanism and two water pipes, wherein one ends of the two water pipes are respectively connected with the lower parts of two sides of the main body;
the sealing mechanism comprises a sealing mechanism adjusting assembly, a connecting box, a connecting rod, a connecting plate and two sealing assemblies, wherein the connecting plate is horizontally arranged in a main body, a piston rod of a hydraulic cylinder is connected with the upper part of the connecting plate, the adjusting assembly is connected with the connecting box, the connecting box is arranged below the connecting plate, two ends of the connecting rod are respectively connected with the lower part of the connecting plate and the upper part of the connecting box, small holes are formed in two sides of the connecting box, and the two sealing assemblies are respectively connected with the two small holes;
the sealing assembly comprises sealing plates, supporting plates, a moving plate, a first spring, supporting rods and a protection unit, wherein one side of each of the two sealing plates is connected with the inner walls of the two sides of the main body respectively, the supporting plates are arranged between the connecting box and the sealing plates, the two ends of the first spring are connected with one side of each of the supporting plates, which is far away from the connecting box, and the other side of each of the sealing plates, the supporting plates are connected with the protection unit, the protection unit is connected with the other side of each of the sealing plates, the moving plates are arranged inside the connecting box, the moving plates are connected with the inner walls of the connecting box in a sealing and sliding mode, one ends of the two supporting rods are connected with one sides, which are far away from each other, of the two supporting rods penetrate through the two small holes respectively, the peripheries of the supporting rods are connected with the inner walls of the small holes in a sealing and sliding mode, and the other ends of the supporting rods are connected with one side, which is close to the connecting box, of the supporting plates.
Preferably, in order to realize the protection purpose, the protection unit includes two protection plates and two fixing strips, one side of each of the two fixing strips is respectively connected with the upper side and the lower side of one side, close to the connection box, of the sealing plate, the fixing strip is arranged between the two protection plates, one side, close to each other, of each of the two protection plates is respectively connected with two ends of the fixing strip, the protection plates are connected with the sealing plate, one side, close to each other, of each of the two fixing strips is provided with a groove, two ends of the support plate are respectively arranged inside the two grooves, the support plate is matched with the grooves, and the support plate is connected with the inner walls of the grooves in a sealing and sliding manner.
Preferably, in order to drive the support plate to move, the adjusting component comprises an adjusting air bag, two telescopic pipes and a plurality of second springs, the shape of the adjusting air bag is annular, the adjusting air bag is sleeved on a piston rod of the hydraulic cylinder, the second springs are uniformly arranged in the adjusting air bag along the circumferential direction, two ends of the second spring are respectively connected with the top and the bottom in the adjusting air bag, the upper part of the adjusting air bag is connected with the top in the main body, the lower part of the adjusting air bag is connected with the upper part of the connecting plate, the connecting plate is provided with two through holes, the two telescopic pipes respectively penetrate through the two through holes, one end of the telescopic pipes is connected with the adjusting air bag, the other ends of the two telescopic pipes are respectively connected with the two sides above the connecting box, the adjusting air bags are communicated with the inside of the connecting box through telescopic pipes, and the moving plate is arranged between the other ends of the two telescopic pipes.
The utility model has the advantages that the flat gate with the sealing function reduces the gap between the sealing plate and the inner wall of the main body through the sealing mechanism, improves the sealing effect, avoids the influence on the sealing effect caused by the abrasion of the sealing plate after long-term work, thereby avoiding water leakage, prolonging the service life of the equipment, reducing the maintenance times, improving the reliability of the equipment, compared with the prior sealing mechanism, the sealing mechanism not only limits the moving direction of the support plate through the arranged protection unit, so that the support plate moves stably, meanwhile, the purpose of shielding protection is realized, so that clear water cannot enter between the support plate and the sealing plate, impurities in water cannot be clamped between the support plate and the sealing plate, the movement of the support plate cannot be influenced, therefore, the phenomenon of blocking when the support plate moves is avoided, sealing work is prevented from being influenced, and the reliability is higher.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a flat lock gate having a sealing function according to the present invention;
FIG. 2 is a schematic structural view of a sealing mechanism of the flat gate with sealing function of the present invention;
in the figure: 1. the automatic adjusting device comprises a main body, a hydraulic cylinder, a connecting plate, a connecting rod, a connecting box, a moving plate, a supporting rod, a supporting plate, a first spring, a sealing plate, a fixing strip, a protecting plate, a telescopic pipe, an adjusting air bag and a second spring, wherein the hydraulic cylinder is 2, the connecting plate is 3, the connecting rod is 4, the connecting box is 5, the moving plate is 6, the supporting rod is 7, the supporting plate is 8, the first spring is 9, the sealing plate is 10, the fixing strip is 11, the protecting plate is 12, the telescopic pipe is 13, the adjusting air bag is 14, and the second spring is 15.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, a flat gate with a sealing function comprises a main body 1, a hydraulic cylinder 2, a sealing mechanism and two water pipes, wherein one ends of the two water pipes are respectively connected with the lower parts of two sides of the main body 1, the water pipes are communicated with the inside of the main body 1, a cylinder body of the hydraulic cylinder 2 is vertically arranged above the main body 1, a round hole is arranged above the main body 1, a piston rod of the hydraulic cylinder 2 penetrates through the round hole to be connected with the sealing mechanism, and the sealing mechanism is arranged inside the main body 1;
this flat gate with sealing function passes through sealing mechanism, has reduced the clearance between closing plate 10 and the 1 inner wall of main part, has promoted sealed effect, avoids influencing sealed effect because of wearing and tearing appear in closing plate 10 after long-term work to the phenomenon of leaking can not appear, has prolonged the life of equipment, has reduced the number of times of maintenance, has improved the reliability of equipment.
As shown in fig. 1-2, the sealing mechanism includes a sealing mechanism adjusting assembly, a connecting box 5, a connecting rod 4, a connecting plate 3 and two sealing assemblies, the connecting plate 3 is horizontally disposed inside the main body 1, a piston rod of the hydraulic cylinder 2 is connected with the upper side of the connecting plate 3, the adjusting assembly is connected with the connecting box 5, the connecting box 5 is disposed below the connecting plate 3, two ends of the connecting rod 4 are respectively connected with the lower side of the connecting plate 3 and the upper side of the connecting box 5, two sides of the connecting box 5 are respectively provided with small holes, and the two sealing assemblies are respectively connected with the two small holes;
the sealing assembly comprises sealing plates 10, a support plate 8, a moving plate 6, a first spring 9, a support rod 7 and a protection unit, one side of each of the two sealing plates 10 is respectively connected with the inner walls of the two sides of the main body 1, the support plate 8 is arranged between the connecting box 5 and the sealing plate 10, two ends of the first spring 9 are respectively connected with one side of the support plate 8 far away from the connecting box 5 and the other side of the sealing plate 10, the support plate 8 is connected with a protection unit, the protection unit is connected with the other side of the sealing plate 10, the moving plate 6 is arranged inside the connecting box 5, the moving plate 6 is in sealed sliding connection with the inner wall of the connecting box 5, one end of each of the two support rods 7 is respectively connected with one side of the moving plate 6 which is far away from each other, the other end of each of the two support rods 7 respectively penetrates through the two small holes, the periphery of the supporting rod 7 is in sealing sliding connection with the inner wall of the small hole, and the other end of the supporting rod 7 is connected with one side, close to the connecting box 5, of the supporting plate 8.
When a water pipe needs to be plugged, the hydraulic cylinder 2 is controlled to be started, the piston rod is extended, the connecting plate 3 is driven to move downwards, the sealing plate 10 moves downwards, the sealing plate 10 can plug the water pipe, the sealing function is realized, when the connecting plate 3 moves downwards, the adjusting assembly can be driven to work, air in the connecting box 5 is exhausted, air pressure in the connecting box 5 is reduced, the moving plate 6 moves towards the direction close to the small hole, the supporting plate 8 is driven to move towards the direction close to the water pipe through the supporting rod 7, the first spring 9 is compressed, deformation of the first spring 9 is increased, restoring force towards the direction close to the water pipe is given to the sealing plate 10 through the restoring force of the first spring 9, the sealing plate 10 can be firmly abutted against the inner wall of the main body 1, gaps between the sealing plate 10 and the inner wall of the main body 1 are reduced, and the sealing effect is improved, avoid influencing sealed effect because of wearing and tearing appear in long-term work back closing plate 10, thereby the phenomenon of leaking can not appear, the life of equipment has been prolonged, the number of times of maintenance has been reduced, the reliability of equipment has been improved, through the protection unit who sets up, the moving direction of extension board 8 has not only been restricted, make extension board 8 move stably, the purpose of sheltering from the protection has been realized simultaneously, make the clear water can not get into between extension board 8 and the closing plate 10, make the impurity of aquatic can not block between extension board 8 and closing plate 10, can not influence the removal of extension board 8, thereby can not appear blocking dead phenomenon when extension board 8 removes, prevent to influence sealed work, the reliability is higher.
Preferably, for the purpose of protection, the protection unit includes two protection plates 12 and two fixing strips 11, one side of each of the two fixing strips 11 is respectively above and below one side of the sealing plate 10 close to the connection box 5, the fixing strip 11 is disposed between the two protection plates 12, one sides of the two protection plates 12 close to each other are respectively connected with two ends of the fixing strip 11, the protection plates 12 are connected with the sealing plate 10, one sides of the two fixing strips 11 close to each other are respectively provided with a groove, two ends of the support plate 8 are respectively disposed inside the two grooves, the support plate 8 is matched with the grooves, and the support plate 8 is in sliding connection with the inner walls of the grooves in a sealing manner.
Through the fixed strip 11 that sets up, make extension board 8 remove in the recess on fixed strip 11, thereby the moving direction of extension board 8 has been restricted, make extension board 8 remove stably, simultaneously through sheltering from of fixed strip 11 and protection shield 12, make the clear water can not get into between extension board 8 and the closing plate 10, make impurity can not block between extension board 8 and closing plate 10, can not influence the removal of extension board 8, also make the impurity in the clear water can not remain in the inside of recess simultaneously, thereby can not appear blocking dead phenomenon when extension board 8 removes, prevent to influence sealed work, the reliability is higher.
Preferably, in order to drive the support plate 8 to move, the adjusting assembly comprises an adjusting air bag 14, two telescopic pipes 13 and a plurality of second springs 15, the adjusting air bag 14 is annular, the adjusting air bag 14 is sleeved on a piston rod of the hydraulic cylinder 2, each second spring 15 is circumferentially and uniformly arranged inside the adjusting air bag 14, two ends of each second spring 15 are respectively connected with the top and the bottom inside the adjusting air bag 14, the upper part of the adjusting air bag 14 is connected with the top inside the main body 1, the lower part of the adjusting air bag 14 is connected with the upper part of the connecting plate 3, the connecting plate 3 is provided with two through holes, the two telescopic pipes 13 respectively penetrate through the two through holes, one end of each telescopic pipe 13 is connected with the adjusting air bag 14, the other ends of the two telescopic pipes 13 are respectively connected with two sides above the connecting box 5, the adjusting air bag 14 is communicated with the inside of the connecting box 5 through the telescopic pipes 13, the moving plate 6 is arranged between the other ends of the two telescopic tubes 13.
When the connecting plate 3 moves downwards, the lower part of the adjusting air bag 14 is driven to move, the adjusting air bag 14 is stretched, the size of the adjusting air bag 14 is increased, meanwhile, the second spring 15 is stretched, the air pressure in the adjusting air bag 14 is reduced, the air in the connecting box 5 enters the adjusting air bag 14 through the telescopic pipe 13, the air pressure in the connecting box 5 is reduced, the moving plate 6 moves towards the direction close to the small hole, the supporting plate 8 moves towards the direction close to the sealing plate 10, the first spring 9 is compressed, the deformation of the first spring 9 is increased, the restoring force of the first spring 9 is used for providing a force towards the direction close to the water pipe for the sealing plate 10, the gap between the sealing plate 10 and the inner wall of the main body 1 is reduced, the sealing effect is improved, the sealing effect is prevented from being influenced by the abrasion of the sealing plate 10 after long-term work, and the phenomenon of water leakage is avoided, the reliability of the device is improved.
When a water pipe needs to be plugged, the hydraulic cylinder 2 is controlled to be started, the piston rod is extended, the connecting plate 3 is driven to move downwards, the sealing plate 10 moves downwards, the sealing plate 10 can plug the water pipe, the sealing function is realized, when the connecting plate 3 moves downwards, the adjusting assembly can be driven to work, air in the connecting box 5 is exhausted, air pressure in the connecting box 5 is reduced, the moving plate 6 moves towards the direction close to the small hole, the supporting plate 8 is driven to move towards the direction close to the water pipe through the supporting rod 7, the first spring 9 is compressed, deformation of the first spring 9 is increased, restoring force towards the direction close to the water pipe is given to the sealing plate 10 through the restoring force of the first spring 9, the sealing plate 10 can be firmly abutted against the inner wall of the main body 1, gaps between the sealing plate 10 and the inner wall of the main body 1 are reduced, and the sealing effect is improved, avoid influencing sealed effect because of wearing and tearing appear in long-term work back closing plate 10, thereby the phenomenon of leaking can not appear, the life of equipment has been prolonged, the number of times of maintenance has been reduced, the reliability of equipment has been improved, through the protection unit who sets up, the moving direction of extension board 8 has not only been restricted, make extension board 8 move stably, the purpose of sheltering from the protection has been realized simultaneously, make the clear water can not get into between extension board 8 and the closing plate 10, make the impurity of aquatic can not block between extension board 8 and closing plate 10, can not influence the removal of extension board 8, thereby can not appear blocking dead phenomenon when extension board 8 removes, prevent to influence sealed work, the reliability is higher.
Compared with the prior art, the flat gate with the sealing function has the advantages that the gap between the sealing plate 10 and the inner wall of the main body 1 is reduced through the sealing mechanism, the sealing effect is improved, the sealing effect is prevented from being influenced due to abrasion of the sealing plate 10 after long-term work, the phenomenon of water leakage is avoided, the service life of equipment is prolonged, the maintenance frequency is reduced, and the reliability of the equipment is improved, compared with the existing sealing mechanism, the sealing mechanism not only limits the moving direction of the supporting plate 8 through the arranged protection unit, so that the supporting plate 8 moves stably, but also realizes the purpose of shielding protection, clean water cannot enter between the supporting plate 8 and the sealing plate 10, impurities in water cannot be clamped between the supporting plate 8 and the sealing plate 10, the movement of the supporting plate 8 cannot be influenced, the phenomenon of clamping death cannot occur when the supporting plate 8 moves, and the sealing work is prevented from being influenced, the reliability is higher.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (3)

1. The flat gate with the sealing function is characterized by comprising a main body (1), a hydraulic cylinder (2), a sealing mechanism and two water pipes, wherein one ends of the two water pipes are respectively connected with the lower parts of two sides of the main body (1), the water pipes are communicated with the inside of the main body (1), a cylinder body of the hydraulic cylinder (2) is vertically arranged above the main body (1), a round hole is formed above the main body (1), a piston rod of the hydraulic cylinder (2) penetrates through the round hole to be connected with the sealing mechanism, and the sealing mechanism is arranged inside the main body (1);
the sealing mechanism comprises a sealing mechanism adjusting assembly, a connecting box (5), a connecting rod (4), a connecting plate (3) and two sealing assemblies, wherein the connecting plate (3) is horizontally arranged inside a main body (1), a piston rod of a hydraulic cylinder (2) is connected with the upper part of the connecting plate (3), the adjusting assembly is connected with the connecting box (5), the connecting box (5) is arranged below the connecting plate (3), two ends of the connecting rod (4) are respectively connected with the lower part of the connecting plate (3) and the upper part of the connecting box (5), small holes are formed in two sides of the connecting box (5), and the two sealing assemblies are respectively connected with the two small holes;
the sealing assembly comprises sealing plates (10), support plates (8), a moving plate (6), first springs (9), support rods (7) and a protection unit, wherein one sides of the two sealing plates (10) are respectively connected with the inner walls of the two sides of the main body (1), the support plates (8) are arranged between the connecting box (5) and the sealing plates (10), two ends of each first spring (9) are respectively connected with one side of each support plate (8) far away from the connecting box (5) and the other side of each sealing plate (10), the support plates (8) are connected with the protection unit, the protection unit is connected with the other sides of the sealing plates (10), the moving plate (6) is arranged inside the connecting box (5), the moving plate (6) is connected with the inner walls of the connecting box (5) in a sealing and sliding mode, one ends of the two support rods (7) are respectively connected with one sides of the two moving plates (6) far away from each other, the other ends of the two supporting rods (7) respectively penetrate through the two small holes, the peripheries of the supporting rods (7) are connected with the inner walls of the small holes in a sealing and sliding mode, and the other ends of the supporting rods (7) are connected with one side, close to the connecting box (5), of the supporting plate (8).
2. The flat gate with sealing function according to claim 1, wherein the protection unit comprises two protection plates (12) and two fixing strips (11), one side of each fixing strip (11) is respectively arranged above and below one side of the sealing plate (10) close to the connecting box (5), the fixing strips (11) are arranged between the two protection plates (12), one side of each protection plate (12) close to each other is respectively connected with two ends of the corresponding fixing strip (11), the protection plates (12) are connected with the sealing plate (10), one side of each fixing strip (11) close to each other is provided with a groove, two ends of the support plate (8) are respectively arranged inside the two grooves, the support plate (8) is matched with the grooves, and the support plate (8) is in sealing sliding connection with the inner walls of the grooves.
3. The plate gate with sealing function according to claim 1, wherein the adjusting assembly comprises an adjusting air bag (14), two telescopic pipes (13) and a plurality of second springs (15), the adjusting air bag (14) is annular, the adjusting air bag (14) is sleeved on the piston rod of the hydraulic cylinder (2), each second spring (15) is circumferentially and uniformly arranged inside the adjusting air bag (14), two ends of the second spring (15) are respectively connected with the top and the bottom inside the adjusting air bag (14), the upper side of the adjusting air bag (14) is connected with the top inside the main body (1), the lower side of the adjusting air bag (14) is connected with the upper side of the connecting plate (3), two through holes are arranged on the connecting plate (3), the two telescopic pipes (13) respectively penetrate through the two through holes, one end of the telescopic pipe (13) is connected with the adjusting air bag (14), the other ends of the two extension tubes (13) are respectively connected with two sides above the connecting box (5), the adjusting air bags (14) are communicated with the inside of the connecting box (5) through the extension tubes (13), and the moving plate (6) is arranged between the other ends of the two extension tubes (13).
CN202122497791.1U 2021-10-16 2021-10-16 Flat gate with sealing function Active CN216715266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122497791.1U CN216715266U (en) 2021-10-16 2021-10-16 Flat gate with sealing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122497791.1U CN216715266U (en) 2021-10-16 2021-10-16 Flat gate with sealing function

Publications (1)

Publication Number Publication Date
CN216715266U true CN216715266U (en) 2022-06-10

Family

ID=81876323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122497791.1U Active CN216715266U (en) 2021-10-16 2021-10-16 Flat gate with sealing function

Country Status (1)

Country Link
CN (1) CN216715266U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118066318A (en) * 2024-04-19 2024-05-24 福建永强阀门制造有限公司 Hydraulic labor-saving gate valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118066318A (en) * 2024-04-19 2024-05-24 福建永强阀门制造有限公司 Hydraulic labor-saving gate valve

Similar Documents

Publication Publication Date Title
CN216715266U (en) Flat gate with sealing function
CN108161829B (en) A kind of piston and dust cover press-loading apparatus
CN109186884B (en) Water-cooled motor shell detection device for motor production
CN212071007U (en) Device for mounting O-shaped ring on shaft-shaped workpiece
CN216812359U (en) Piston type lifting oil cylinder structure
CN215980229U (en) Hydraulic cylinder with self-locking function
CN115478766A (en) Steel nuclear power protection door and manufacturing method thereof
CN212826934U (en) Rubber seal assembly devices
CN210689936U (en) Air tightness detection device
CN110259314A (en) A kind of small-sized cleaning chamber dodge gate
CN219841032U (en) Mechanical sealing device of desulfurization circulating pump
CN209605811U (en) Detection device is used in a kind of maintenance of oilfield machinery and equipment
CN216951090U (en) Anti-leakage piston rod
CN110725951A (en) Sealing structure for oil cylinder and plunger of double-frame plate hydraulic press
CN221054289U (en) Polyurethane loss prevention sealing ring
CN214171127U (en) Guide rail sliding block with good sealing performance
CN210859827U (en) Square poppet valve
CN212028225U (en) Self-filtering oil cylinder
CN211174865U (en) Hydraulic cylinder with good leakproofness
CN217207113U (en) Sealing structure of pull rod hydraulic cylinder
CN220770031U (en) Gas spring nitrogen filling device
CN214248000U (en) Bearing with sealing structure
CN117886097B (en) Oil seal feeding mechanism
CN220218437U (en) A equipment frock for overvoltage release diaphragm maintenance is fixed
CN220850492U (en) Explosion-proof hydraulic drum brake

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant