Handshake valve lock
By designing a handshake valve lock, the handshake valve can be locked by utilizing the cooperation of the locking adjustment part and the locking tongue. This solves the problem of difficult security management of existing handshake valves and improves the reliability and stability of security management.
Patent Information
- Application Number
- CN202511992137.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-02-10
AI Technical Summary
Existing handshake valves have interfaces that remain open when not connected, making safety difficult to manage. They rely on personnel's self-discipline, creating safety management loopholes and easily leading to accidental start-up accidents.
A handshake valve lock is designed. Through the detachable connection of the first and second lock bodies, the handshake valve is locked by the cooperation of the locking adjustment part, the positioning part and the locking tongue. The stability and security in the locked state are ensured by the meshing of the main teeth and the auxiliary teeth and the push of the return spring. The sealing performance is improved by the sealing gasket and the sealing plug.
It effectively prevents unauthorized operations, complies with LOTO safety standards, improves the reliability and stability of safety management, and ensures the safe operation of the equipment.
Smart Images
Figure CN121497874A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of locks, and more specifically to a hand-held valve lock. Background Technology
[0002] The existing handshake valve is an internationally common connector for air source connection. When not connected, its interface is often in a normally open state. Although it has a rotating cover to cover it, it cannot effectively manage safety. Generally, sticking paper strips, stuffing things, hanging warning signs, etc. are used, which have problems such as being easy to forget, easy to fall off, and difficult to manage. Moreover, it relies on the conscientiousness of personnel, and there are loopholes in safety management, which can easily lead to the equipment starting by accident (unintended connection of air source may lead to safety accidents). Summary of the Invention
[0003] In view of the above problems, the purpose of this invention is to provide a handshake valve lock that can lock and isolate the handshake valve to prevent unauthorized operation and comply with the LOTO (Lock-On Tag) safety standard.
[0004] To address the above problems, the following technical solution is provided: a handshake valve lock, comprising a first lock body and a second lock body detachably connected to each other. The first lock body includes a first contact surface facing the second lock body and a locking adjustment part extending toward the second lock body. The locking adjustment part is provided with positioning members arranged along its length. The second lock body includes a second contact surface facing the first lock body and an adjustment slide hole / groove penetrating the second lock body to accommodate the telescopic sliding of the locking adjustment part, thereby realizing the first lock body and the second lock body moving closer or further apart or separating from each other. The second lock body also includes a lock cylinder and a lock tongue that is driven to telescopically extend and retract by the lock cylinder. The end of the lock tongue is located in the adjustment slide hole / groove and is adapted to engage with the positioning members of the locking adjustment part to control the sliding position of the locking adjustment part.
[0005] The present invention is further configured such that the positioning member is a plurality of main teeth arranged at intervals along the length direction of the locking adjustment part; the end of the locking tongue is provided with auxiliary teeth that are adapted to mesh with the main teeth.
[0006] The invention is further configured such that the latch is provided with a return spring for pushing it back; the rear end of the lock cylinder is provided with an eccentric member, which abuts against the latch to control its extension and retraction.
[0007] The present invention is further configured such that the locking adjustment part is located near the outer edge of the first lock body, and there are two sets of them, which are spaced apart from each other along the circumferential direction of the first lock body; or the cross-section of the locking adjustment part is arranged in a covering shape along the outer edge of the first lock body.
[0008] The present invention is further configured such that the center of the first contact surface is provided with an anti-detachment positioning hole / groove.
[0009] The present invention is further configured such that a sealing gasket is provided at the center of the second contact surface.
[0010] The present invention is further configured such that the center of the sealing gasket is provided with a sealing plug that protrudes outward toward the first contact surface.
[0011] The invention is further configured such that the sealing plug is conical with its smaller diameter end facing the first contact surface.
[0012] The present invention is further configured such that a sealing groove is provided at the center of the second contact surface, and the sealing gasket is located inside the sealing groove; a fixing post is provided at the center of the sealing groove, and the sealing plug is sleeved outside the fixing post and fixedly installed by screws.
[0013] The present invention is further configured such that a hand grip is provided on one side of the second lock body.
[0014] The beneficial effects of this invention are: 1. When the first lock body and the second lock body are combined, the locking adjustment part is inserted into the adjustment slide hole / slot. The distance between the first lock body and the second lock body is adjusted by the matching of the positioning part and the lock tongue, thereby clamping the hand valve between the first contact surface and the second contact surface to lock the hand valve and prevent connection operation in an unauthorized state. After the first lock body and the second lock body are combined, a tag can be hung on the locking adjustment part between the first lock body and the second lock body to improve security. 2. The main teeth and auxiliary teeth have triangular or sawtooth cross-sections. When the main teeth and auxiliary teeth have sawtooth cross-sections, automatic disengagement can be achieved when the first lock body is moving towards the second lock body, and positioning can be achieved when the first lock body and the second lock body are moving away from each other. The return spring is used to push the lock tongue to return to its original position, and the eccentric part abuts against the end of the lock tongue facing away from the auxiliary teeth. When locked, the eccentric part pushes the lock tongue outward and compresses and stores force on the return spring. In the unlocked state, the lock tongue loses the abutment of the eccentric part and is pushed back to its original position by the return spring, causing the main teeth and auxiliary teeth to separate. 3. Preferably, two sets of locking adjustment parts are provided, spaced 180 degrees apart from each other along the circumferential direction of the first lock body, which can effectively ensure the stability during locking; or the cross-section of the locking adjustment part is C-shaped or semi-circular, and a stable and reliable locking is achieved by covering it. 4. The anti-disengagement positioning hole / groove is used to fit the protruding part on the back of the mating surface of the hand grip valve to achieve positioning and prevent disengagement; the sealing gasket is used to fit and abut against the mating surface of the hand grip valve, and the first locking body and the second locking body are squeezed together to achieve a sealing fit; the sealing plug is used to fit the vent hole in the center of the mating surface of the hand grip valve, which improves the sealing performance while providing positioning; the conical structure can improve the sealing effect between the plug and the inner wall of the vent hole. 5. The sealing groove is used to accommodate the sealing gasket and provides elastic clearance space for the sealing gasket during the fitting compression seal between the sealing gasket and the mating surface; 6. The handle ear is used to adapt to the handle lock plate of the hand valve, improve locking stability, and constrain the installation orientation. Attached Figure Description
[0015] Figure 1 This is a first-view three-dimensional structural diagram of the locked state of the present invention.
[0016] Figure 2 This is a schematic diagram of the second-view three-dimensional structure of the locked state of the present invention.
[0017] Figure 3 This is a first-view three-dimensional structural diagram of the first lock body and the second lock body of the present invention in their separated state.
[0018] Figure 4 This is a two-dimensional structural diagram of the first and second lock bodies of the present invention in a separated state from a second perspective.
[0019] Figure 5 This is a three-dimensional structural diagram of the first and second lock bodies of the present invention in a separated state from a third perspective.
[0020] Figure 6 This is a partial cross-sectional first-view three-dimensional structural diagram of the present invention.
[0021] Figure 7 This is a partial cross-sectional second-view three-dimensional structural diagram of the present invention.
[0022] Figure 8 This is a full-section three-dimensional structural diagram of the locking tongue in the unlocked state of the present invention.
[0023] Figure 9 This is a full-section three-dimensional structural diagram of the locking tongue in the locking state of the present invention.
[0024] The labels in the diagram have the following meanings: 10-First lock body; 11-First contact surface; 111-Anti-disengagement positioning hole / groove; 12-Locking adjustment part; 121-Positioning component; 20-Second lock body; 21-Second contact surface; 211-Sealing groove; 212-Fixing post; 22-Adjusting slide hole / groove; 23-Lock cylinder; 231-Eccentric component; 24-Lock tongue; 241-Secondary tooth; 242-Return spring; 25-Sealing gasket; 251-Sealing plug; 26-Handle ear; 30-Handle valve; 31-Mating surface; 311-Sealing ring; 32-Protruding part; 33-Air vent; 34-Handle lock plate. Detailed Implementation
[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
[0026] refer to Figures 1 to 9 ,like Figures 1 to 9The handshake valve lock shown includes a first lock body 10 and a second lock body 20 that are detachably connected to each other. The first lock body 10 includes a first abutment surface 11 facing the second lock body 20 and a locking adjustment part 12 extending toward the second lock body 20. The locking adjustment part 12 is provided with positioning members 121 arranged along its length direction. The second lock body 20 includes a second abutment surface 21 facing the first lock body 10 and an adjustment slide hole / groove 22 that penetrates the second lock body 20 to accommodate the telescopic sliding of the locking adjustment part 12, so as to realize that the first lock body 10 and the second lock body 20 are close to each other or separate after being far apart. The second lock body 20 also includes a lock cylinder 23 and a lock tongue 24 that is driven to telescopically extend and retract by the lock cylinder 23. The end of the lock tongue 24 is located in the adjustment slide hole / groove 22 and is adapted to engage with the positioning members 121 of the locking adjustment part 12 to control the sliding position of the locking adjustment part 12.
[0027] In the above structure, when the first lock body 10 and the second lock body 20 are combined, the locking adjustment part 12 is inserted into the adjustment slide hole / groove 22. The distance between the first lock body 10 and the second lock body 20 is adjusted by the positioning part 121 and the lock tongue 24, thereby clamping the hand grip valve 30 between the first contact surface 11 and the second contact surface 21, realizing the locking of the hand grip valve 30 and preventing connection operations in an unauthorized state. After the first lock body 10 and the second lock body 20 are combined, a tag can be hung on the locking adjustment part 12 between the first lock body 10 and the second lock body 20 to improve security standards.
[0028] In this embodiment, the positioning member 121 consists of a plurality of main teeth arranged at intervals along the length direction of the locking adjustment part 12; the end of the locking tongue 24 is provided with a secondary tooth 241 that is adapted to mesh with the main teeth.
[0029] In the above structure, the cross-section of the main tooth and the auxiliary tooth 241 is triangular (shown as a triangle in the figure) or sawtooth. When the cross-section of the main tooth and the auxiliary tooth 241 is sawtooth, automatic disengagement can be achieved when the first lock body 10 is close to the second lock body 20, and positioning can be achieved when the first lock body 10 and the second lock body 20 are far apart.
[0030] In this embodiment, the latch 24 is provided with a return spring 242 to push it back; the rear end of the lock cylinder 23 is provided with an eccentric member 231, which abuts against the latch 24 to control its extension and retraction.
[0031] In the above structure, the return spring 242 is used to push the locking tongue 24 to return to its original position, and the eccentric member 231 abuts against the end of the locking tongue 24 facing away from the auxiliary tooth 241. When locked, the eccentric member 231 pushes the locking tongue 24 to extend outward and compresses and stores force on the return spring 242. In the unlocked state, the locking tongue 24 loses the contact of the eccentric member 231 and is pushed back to its original position by the return spring 242, causing the main tooth and the auxiliary tooth 241 to separate.
[0032] In this embodiment, the locking adjustment part 12 is located near the outer edge of the first lock body 10, and there are two sets of them, which are spaced apart from each other along the circumferential direction of the first lock body 10 (in this state, the locking tongue 24 is also two sets); or the cross section of the locking adjustment part 12 is arranged in a covering shape along the outer edge of the first lock body 10.
[0033] In the above structure, the locking adjustment part 12 is preferably provided in two sets, which are spaced 180 degrees apart from each other along the circumferential direction of the first lock body 10, which can effectively ensure the stability during locking (as shown in the figure); or the locking adjustment part 12 has a C-shaped or semi-circular cross section, and the stable and reliable locking is achieved by covering it. It is preferred to provide two sets (when the locking adjustment part 12 has a C-shaped or semi-circular cross section, the locking tongue 24 is also provided in two sets, corresponding to the 0-degree and 180-degree positions of the C-shaped or semi-circular cross section respectively).
[0034] In this embodiment, the first contact surface 11 is provided with an anti-detachment positioning hole / groove 111 at its center.
[0035] In the above structure, the anti-detachment positioning hole / groove 111 is used to adapt to the protruding part 32 on the back side of the mating surface 31 of the handshake valve 30 to achieve positioning and anti-detachment.
[0036] In this embodiment, a sealing gasket 25 is provided at the center of the second contact surface 21.
[0037] In the above structure, the sealing gasket 25 is adapted to and abuts against the mating surface 31 of the handshake valve 30 or is adapted to the sealing ring 311 at the mating surface 31, and the sealing fit is achieved by the first locking body 10 and the second locking body 20 coming close to each other and generating compression.
[0038] In this embodiment, the sealing gasket 25 has a sealing plug 251 protruding outward toward the first contact surface 11 at its center.
[0039] In the above structure, the sealing plug 251 is used to fit with the air passage 33 at the center of the mating surface 31 of the handshake valve 30, which improves the sealing performance while providing positioning.
[0040] In this embodiment, the sealing plug 251 is conical with its small diameter end facing the first contact surface 11.
[0041] In the above structure, the conical structure can improve the sealing effect between the conical structure and the inner wall of the vent 33.
[0042] In this embodiment, the second contact surface 21 is provided with a sealing groove 211 at its center, and the sealing gasket 25 is located inside the sealing groove 211; the sealing groove 211 is provided with a fixing post 212 at its center, and the sealing plug 251 is sleeved on the fixing post 212 and fixedly installed by screws (not shown in the figure).
[0043] In the above structure, the sealing groove 211 is used to accommodate the sealing gasket 25 and provides elastic relief space for the sealing gasket 25 when the sealing gasket 25 is fitted and squeezed to seal with the mating surface 31 or the sealing ring 311.
[0044] In this embodiment, a handshake lug 26 is provided on one side of the second lock body 20.
[0045] In the above structure, the hand grip ear 26 is used to adapt to the hand grip lock plate 34 of the hand grip valve 30, improve locking stability, and constrain the installation orientation.
[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications assumed above should also be considered within the scope of protection of the present invention.
Claims
1. A handshake valve lock, characterized in that: The lock includes a first lock body and a second lock body that are detachably connected to each other. The first lock body includes a first abutting surface facing the second lock body and a locking adjustment part extending toward the second lock body. The locking adjustment part is provided with positioning members arranged along its length. The second lock body includes a second abutting surface facing the first lock body and an adjustment slide hole / groove penetrating the second lock body to accommodate the telescopic sliding of the locking adjustment part, so as to realize that the first lock body and the second lock body are close to each other or separate after being far apart. The second lock body also includes a lock cylinder and a lock tongue that is driven to telescopically extend and retract by the lock cylinder. The end of the lock tongue is located in the adjustment slide hole / groove and is adapted to engage with the positioning member of the locking adjustment part to control the sliding position of the locking adjustment part.
2. The handshake valve lock according to claim 1, characterized in that: The positioning element consists of several main teeth arranged at intervals along the length of the locking adjustment part; the end of the locking tongue is provided with auxiliary teeth that are adapted to mesh with the main teeth.
3. A handshake valve lock according to claim 1, characterized in that: The latch is provided with a return spring to push it back; the rear end of the lock cylinder is provided with an eccentric component, which abuts against the latch to control its extension and retraction.
4. A handshake valve lock according to claim 1, 2, or 3, characterized in that: The locking adjustment part is located near the outer edge of the first lock body, and there are two sets of them, which are spaced apart from each other along the circumferential direction of the first lock body; or the cross-section of the locking adjustment part is arranged in a covering shape along the outer edge of the first lock body.
5. A handshake valve lock according to claim 1, characterized in that: The first contact surface has an anti-detachment positioning hole / groove at its center.
6. A handshake valve lock according to claim 1 or 5, characterized in that: A sealing gasket is provided at the center of the second contact surface.
7. A handshake valve lock according to claim 6, characterized in that: The sealing gasket has a sealing plug at its center that protrudes outward toward the first contact surface.
8. A handshake valve lock according to claim 7, characterized in that: The sealing plug is conical with its smaller diameter end facing the first contact surface.
9. A handshake valve lock according to claim 7 or 8, characterized in that: The second contact surface has a sealing groove at its center, and the sealing gasket is located inside the sealing groove; the sealing groove has a fixing post at its center, and the sealing plug is sleeved on the fixing post and fixed by screws.
10. A handshake valve lock according to claim 1, characterized in that: The second lock body has a hand grip ear on one side.