Lock and its usage method

Abstract

The present invention discloses a lock and a method for using the same, belonging to the technical field of unlocking devices. Among them, it includes a first lock body and a second lock body. The first lock body is installed on the second lock body. The first lock body has a driving shaft. At least one convex shaft is provided in the direction of the driving shaft close to the second lock body, and the convex shaft is located upward in the circumferential direction of the driving shaft, so that the driving shaft drives the convex shaft to move circumferentially when rotating; the second lock body has a driven shaft, and one end of the driven shaft facing the convex shaft has a convex platform body, and a locking groove is formed between the outer wall of the convex platform body and the inner wall of the second lock body, and at least a part of the convex shaft is located in the locking groove; the difference between the virtual lock and the real lock function lock lies only in the single convex shaft and the double convex shafts; when producing locks with virtual lock and real lock functions respectively, the function of the lock is distinguished only by the structure of the single convex shaft and the double convex shafts; according to this lock structure, a set of molds is customized to realize that only one set of molds can produce locks with virtual lock and real lock functions, reducing the production and manufacturing costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of unlocking devices, and particularly relates to a lock and its using method. Background Art

[0002] Power grid companies usually control power equipment through an anti-error system, and locks need to be set on the equipment to be controlled. In daily equipment operation tasks, different operation tasks require operating different equipment. In the underlying protection of a comprehensive anti-error system, an important link is the terminal lock, especially for equipment such as community substation switch cabinets, terminal boxes, and power supply boxes in the power industry. A large number of locks are used. Due to the large number of cabinet doors and different types, the types and quantities of unlocking keys are numerous.

[0003] Moreover, in the usage scenario, some cabinet doors on equipment need to have a virtual lock function, while some cabinet doors on equipment do not need to have a virtual lock function. The structures of products with these two different requirements are very different. When manufacturing locks, usually two sets of molds are required to separately manufacture locks with virtual lock functions and locks without virtual lock functions, resulting in high manufacturing costs and complex assembly processes during the processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a lock and its using method, which realizes the common use of parts for two types of products, namely real locks and virtual locks, reduces the types of parts and the number of their molds, and lowers the production and manufacturing costs.

[0005] It is found through research that: when manufacturing locks with virtual locks and locks without virtual locks, the lock without a virtual lock uses a key to drive a single rotating shaft to rotate, thereby unlocking the lock; for the lock with a virtual lock, the single rotating shaft is respectively processed into a driving shaft and a driven shaft, and there is an active gap between the driving shaft and the driven shaft, so that the lock has a virtual lock function. However, the mold is customized according to the structure of the lock, resulting in a large difference in the structures of molds for manufacturing locks with virtual locks and locks without virtual locks. Therefore, when manufacturing locks with virtual lock functions and real lock functions, two sets of molds must be developed. Among them, the mold structure without a virtual lock is relatively simple, and the mold structure with a virtual lock is relatively complex. Using molds with different structures leads to high manufacturing costs during the processing.

[0006] Its technical solution is as follows:

[0007] A lock includes a first lock body and a second lock body. The first lock body is installed on the second lock body. The first lock body has a driving shaft, and at least one convex shaft is provided in the direction of the driving shaft close to the second lock body, and the convex shaft is located in the circumferential direction of the driving shaft;

[0008] The second lock body has a passive shaft. One end of the passive shaft facing the convex shaft has a convex platform body, and a locking groove is formed between the outer wall of the convex platform body and the inner wall of the second lock body. At least a part of the convex shaft is located in the locking groove;

[0009] Wherein, the convex shaft has a first moving position and a second moving position in the circumferential direction of the active shaft. The outer wall of the convex platform body has a first contact surface and a second contact surface. In the first moving position, the convex shaft is used to abut against the first contact surface of the convex platform body. In the second moving position, the convex shaft is used to abut against the second contact surface of the convex platform body.

[0010] In one embodiment, the cross-section of the convex platform body is crescent-shaped, and at least a part of the outer wall of the convex platform body is ridge-shaped. Both the first contact surface and the second contact surface are in an inner arc shape; the first contact surface or the second contact surface is disposed opposite to the outer arc surface of the convex platform body, and the outer wall of the convex shaft fits with the first contact surface or the second contact surface.

[0011] In one embodiment, there are two convex shafts. The locking groove has a first slot and a second slot. At least a part of one convex shaft is located in the first slot, and at least a part of the other convex shaft is located in the second slot. The outer walls of the two convex shafts are respectively in contact with the first contact surface and the second contact surface of the convex platform body.

[0012] In one embodiment, the convex platform body has a receiving groove, a positioning member and a spring. The receiving groove is located on the outer wall of the convex platform body and is disposed opposite to the convex shaft; the spring is located in the receiving groove. The first end of the positioning member is located in the receiving groove, the second end of the positioning member is in contact with the inner wall of the second lock body, and the spring is located between the positioning member and the bottom wall of the receiving groove; the inner wall of the second lock body has a positioning groove that cooperates with the positioning member. In the radial direction of the convex platform body, the positioning member and the positioning groove are staggeredly arranged.

[0013] In one embodiment, the first lock body includes a first housing, a second housing, a gasket and a fastener. The first housing has an external thread. The fastener is sleeved outside the first housing and is in threaded cooperation with the first housing; the second housing is installed at the first end of the first housing. The outer diameter of the second housing is larger than the outer diameter of the first housing. An installation position is formed between the second housing and the fastener. The gasket is sleeved outside the first housing and is located in the installation position.

[0014] In one embodiment, the second end of the first housing has a first limiting hole, a clamping groove, and a pin shaft. The second lock body has an assembly body, and the passive shaft is located within the assembly body. The assembly body has a second limiting hole and a convex block facing the direction of the first housing, and the convex block is engaged with the clamping groove. The second end of the first housing is sleeved outside the assembly body, and both the first limiting hole and the second limiting hole are for the pin shaft to pass through, so that the first housing is fixed to the assembly body.

[0015] In one embodiment, the first lock body has a sealing ring. The second housing is in a conical shape. The sealing ring is sleeved outside the first housing and is close to the largest end of the second housing, and the sealing ring is located in the gap between the first housing and the second housing. The smallest end of the second housing has a keyhole and a dust cover. One end of the dust cover close to the keyhole has a sealing plug, and the dust cover is movably engaged with the keyhole through the sealing plug.

[0016] In one embodiment, one end of the convex platform body gradually decreases from one end to the other end of the convex platform body, and the smallest end of the convex platform body is close to the active shaft. The first lock body further has an elastic snap ring. The inner side of the elastic snap ring is sleeved on the outer wall of the smallest end of the convex platform body, and the outer side of the elastic snap ring abuts against the inner wall of the first housing.

[0017] In one embodiment, the passive shaft includes a first shaft body and a second shaft body. The first shaft body and the second shaft body are of an integral structure. The first shaft body is fixed to the convex platform body. The cross-section of the first shaft body is circular, and the cross-section of the second shaft body is square. One end of the second shaft body away from the first shaft body has a threaded hole.

[0018] The second lock body further includes a steel bolt, a limiting plate, and a screw. Both the steel bolt and the limiting plate are sleeved outside the second shaft body. The length direction of the steel bolt intersects with the axial direction of the second shaft body, and the limiting plate is located between the steel bolt and the first shaft body. The steel bolt has a fixing hole. The screw passes through the fixing hole, cooperates with the threaded hole, and clamps the steel bolt and the limiting plate.

[0019] The circumferential direction of the limiting plate has a first limiting block, and the circumferential direction of the second lock body has a second limiting block. The first limiting block is staggeredly arranged relative to the second limiting block, and the first limiting block is used to abut against the second limiting block.

[0020] The present invention also provides a method for using a lock, including the following steps:

[0021] Step 1: In the first direction, the convex shaft moves from the first moving position to the second moving position. The convex shaft drives the convex platform body to rotate, and the positioning member slides into the positioning groove and unlocks the lock.

[0022] Step 2: In the second direction, the convex shaft moves from the second moving position to the first moving position. The convex shaft drives the convex platform body to rotate and locks the lock; and / or, the convex platform body is in a static state and the lock is in a virtual locked state.

[0023] The technical solution provided by the present invention has the following advantages and effects:

[0024] 1. There is at least one convex shaft in the direction where the passive shaft of the lock is close to the second lock body, and the convex shaft is located in the circumferential direction of the active shaft. When the active shaft rotates, it drives the convex shaft to move circumferentially. One end of the passive shaft facing the convex shaft has a convex platform body, and a lock groove is formed between the outer wall of the convex platform body and the inner wall of the second lock body. At least a part of the convex shaft is located in the lock groove and abuts against the inner wall of the convex platform body; in the first moving position, the convex shaft is used to abut against the first contact surface of the convex platform body, and in the second moving position, the convex shaft is used to abut against the second contact surface of the convex platform body; the convex shaft has a first moving position and a second moving position in the circumferential direction of the active shaft. When the convex shaft rotates clockwise in the first moving position, it drives the convex platform body to rotate, thereby driving the passive shaft to unlock the lock; when the convex shaft rotates counterclockwise in the second moving position, the convex shaft returns to the first moving position, the convex platform body is in a static state, and the lock is in a virtual locked state, so that the lock satisfies the virtual locking function. When there are at least two convex shafts in the direction where the passive shaft is close to the second lock body, the two convex shafts respectively abut against the first contact surface and the second contact surface, so that the lock has a real locking function. The difference between the virtual locking and real locking function locks lies only in the single convex shaft and the double convex shafts; therefore, when producing locks with virtual locking and real locking functions respectively, only the structure of the single convex shaft and the double convex shafts is used to distinguish the functions of the locks; so, it is completely possible to customize a set of molds according to this lock structure to realize the common use of parts for the two products of real locking and virtual locking, reduce the types of parts and the number of molds, and reduce the production and manufacturing costs.

[0025] 2. The cross-section of the convex platform body is set to be crescent-shaped, and at least a part of the outer wall of the convex platform body is ridge-shaped, so that both the first contact surface and the second contact surface in the convex platform body are in the shape of an inner arc. Moreover, the outer wall of the convex shaft fits with the first contact surface or the second contact surface, which can increase the contact area between the convex shaft and the first contact surface in the first moving position and the contact area between the convex shaft and the second contact surface in the second moving position, thereby reducing the pressure exerted by the convex shaft on the convex platform body and avoiding the fracture of the convex shaft caused by excessive local pressure; in the first moving position or the second moving position, the convex shaft can drive the convex platform body to rotate clockwise and counterclockwise. The convex shaft has a moving space in the lock groove and has a gap with the outer wall of the convex platform body, which further satisfies the virtual locking function of the lock with a single convex shaft.

[0026] 3. When there are two cam shafts, at least a portion of one of the cam shafts is located in the first slot, and at least a portion of the other cam shaft is located in the second slot, and the outer walls of the two cam shafts are in contact with the first contact surface and the second contact surface of the boss body respectively; when the active shaft is rotated, the two cam shafts cooperate with the boss body in the lock slot, and the two cam shafts are respectively located in the first slot and the second slot, so that there is no gap between the outer wall of the cam shaft and the outer wall of the boss body, and the two cam shafts drive the boss body to rotate, and driving the cam shaft clockwise drives the boss body to open the lock, and driving the cam shaft counterclockwise drives the boss body to close the lock, so that the lock with two cam shafts has a real locking function.

[0027] 4. At least a part of the positioning member is located in the accommodating groove, the spring is located between the positioning member and the bottom wall of the accommodating groove, the inner wall of the second lock body has a positioning groove that matches the positioning member, and the positioning member and the positioning groove are staggered; the cam shaft rotates to make the boss body passively rotate, thereby driving the positioning member to slide on the inner wall of the second lock body, and when the cam shaft rotates to a certain distance and the positioning member slides to the positioning groove, the positioning member is squeezed into the positioning groove by the spring, and the lock is opened; the user can feel the force of the positioning member sliding into the positioning groove, thereby judging whether the lock is in an open state, so that the lock has the function of reminding the user; when there is no large force driving this positioning member, the bottom wall of the positioning groove will abut against the outer wall of the positioning member, so that the positioning member is at least partially restricted in the positioning groove, avoiding external force from driving the boss body to move through the cam shaft, preventing the lock from being locked by mistake, and improving the stability of the lock.

[0028] 5. When installing the first lock body, one end of the first shell passes through the installation hole of the cabinet door, and then the fastener is sleeved on the outside of the first shell. Since the outer diameter of the second shell is larger than the outer diameter of the first shell, the door panel abuts against the second shell, so that the fastener clamps the cabinet door when it is threaded with the first shell, so that the connection between the first lock body and the door panel is more stable; and when encountering a larger installation hole, a gasket can be sleeved on the outside of the first shell so that the gasket is located in the installation position, thereby filling the gap between the first shell and the cabinet door. When renovating the cabinet door of the power station, since the previous cabinet door lock is larger than the renovated lock, the original cabinet door installation hole is larger, resulting in greater difficulty in its renovation construction. This lock can adapt to installation positions of different sizes in the cabinet door through the gasket, thereby reducing the difficulty of renovation of the power station, and there is no need to replace the cabinet door, reducing the renovation cost of the power station.

[0029] 6. The first housing is fixed to the assembly by the cooperation of the convex block and the card slot, and the pin shaft passes through the first limiting hole and the second limiting hole. The cooperation of the convex block and the card slot enables the first housing to be clamped to the assembly. After the convex block and the card slot are engaged, the first limiting hole corresponds to the second limiting hole, which plays a role in positioning the first limiting hole and the second limiting hole, allowing the pin shaft to quickly pass through the limiting hole of the first housing and be fixed in the second limiting hole, improving the connection stability between the first housing and the assembly and also enhancing the installation efficiency of the lock.

[0030] 7. The sealing ring is sleeved outside the first housing, close to the largest end of the second housing, and is located in the gap between the first housing and the second housing, which can seal the chamber of the first lock body to prevent dust from entering the first lock body. Moreover, the smallest end of the second housing has a keyhole and a dust cover. When the chamber of the second housing meets the requirements for component installation, the second housing is set in a conical shape, which can reduce the opening of the keyhole, further preventing dust from entering the keyhole. The dust cover is movably matched with the keyhole to seal the keyhole when the lock is not opened, further preventing dust from entering the keyhole and improving the stability of the lock.

[0031] 8. One end of the convex platform body gradually decreases from one end to the other end, making the convex platform body in a stepped structure. Moreover, the inner side of the elastic snap ring is sleeved on the outer wall of the smallest end of the convex platform body, and the outer side of the elastic snap ring abuts against the inner wall of the first housing. When the convex platform body rotates, the elastic snap ring improves the compactness between the convex platform body and the first housing and also plays a role in damping during the rotation of the convex platform body.

[0032] 9. The cross-section of the first shaft body is circular, and the first shaft body is fixed to the convex platform body, enabling the convex platform body to drive the first shaft body to rotate in the assembly. The steel bolt and the limiting plate are sleeved outside the second shaft body, and the cross-section of the second shaft body is square, improving the circumferential stability between the steel bolt and the second shaft body, allowing the second shaft body to drive the steel bolt to rotate when it rotates, so that the steel bolt is separated from the door slot of the cabinet door. The steel bolt and the limiting plate are clamped by the screw passing through the fixing hole of the steel bolt, enhancing the overall structural stability of the second lock body. The first limiting block and the second limiting block are arranged staggeredly, and the first limiting block is used to abut against the second limiting block, which can improve the connection stability between the limiting plate and the assembly of the second lock body and further enhance the overall structural stability of the second lock body.

[0033] 10. Through the usage method of this lock, when the lock has two convex shafts, it has a real lock function; when the lock has one convex shaft, it has a false lock function; moreover, the operation is simple and the applicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of the lock in an embodiment of the present invention.

[0035] Figure 2 is an exploded view of the structure of the lock in an embodiment of the present invention.

[0036] Figure 3 is a top view of the lock in an embodiment of the present invention.

[0037] Figure 4 is a front view of the lock in an embodiment of the present invention.

[0038] Figure 5 is in an embodiment of the present invention Figure 3 A - A sectional view.

[0039] Figure 6 is in an embodiment of the present invention Figure 4 B - B sectional view.

[0040] Figure 7 is in an embodiment of the present invention Figure 5 C - C sectional view.

[0041] Figure 8 is a schematic diagram of the cooperation between the convex shaft and the convex table body in an embodiment of the present invention Figure 1 .

[0042] Figure 9 is a schematic diagram of the cooperation between the convex shaft and the convex table body in an embodiment of the present invention Figure 2 .

[0043] Figure 10 is a schematic structural diagram of the passive shaft in an embodiment of the present invention.

[0044] Explanation of reference numerals:

[0045] 100, lock; 10, first lock body; 11, first housing; 111, fastener; 112, external thread; 113, first limit hole; 114, card slot; 12, second housing; 121, keyhole; 13, dust cover; 14, gasket; 15, sealing ring; 16, fixing plate; 17, driving shaft; 171, convex shaft; 18, elastic snap ring; 20, second lock body; 21, steel bolt; 22, limiting plate; 221, first limiting block; 23, screw; 24, assembly; 241, second limit hole; 242, convex block; 243, second limiting block; 244, positioning groove; 25, pin shaft; 26, passive shaft; 260, first shaft body; 206, second shaft body; 261, convex table body; 262, outer arc surface; 263, lock groove; 2631, first slot; 2632, second slot; 264, first contact surface; 265, second contact surface; 266, positioning member; 267, spring; 268, receiving groove; 30, installation position. Detailed implementation manners

[0046] To facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings of the specification.

[0047] Unless otherwise specified or defined, the "first, second..." used herein is only for distinguishing names and does not represent a specific quantity or order.

[0048] Unless otherwise specified or defined, the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0049] It should be noted that "fixed to" and "connected to" herein can be directly fixed or connected to an element, or indirectly fixed or connected to an element.

[0050] Such as Figures 1 to 10As shown, a lock 100 includes a first lock body 10 and a second lock body 20. The first lock body 10 is installed on the second lock body 20. The first lock body 10 has a driving shaft 17. In the direction close to the second lock body 20, the driving shaft 17 has at least one convex shaft 171, and the convex shaft 171 is located in the circumferential direction of the driving shaft 17, so that when the driving shaft 17 rotates, it drives the convex shaft 171 to move circumferentially. The second lock body 20 has a driven shaft 26. One end of the driven shaft 26 facing the convex shaft 171 has a boss body 261, and a locking groove 263 is formed between the outer wall of the boss body 261 and the inner wall of the second lock body 20. At least a part of the convex shaft 171 is located in the locking groove 263. Among them, the convex shaft 171 has a first moving position and a second moving position in the circumferential direction of the driving shaft 17. The outer wall of the boss body 261 has a first contact surface 264 and a second contact surface 265. In the first moving position, the convex shaft 171 is used to abut against the first contact surface 264 of the boss body 261. In the second moving position, the convex shaft 171 is used to abut against the second contact surface 265 of the boss body 261. The convex shaft 171 has a first moving position and a second moving position in the circumferential direction of the driving shaft 17. When the convex shaft 171 rotates clockwise in the first moving position, it will drive the boss body 261 to rotate, thereby driving the driven shaft 26 to unlock the lock 100. When the convex shaft 171 rotates counterclockwise in the second moving position, the convex shaft 171 returns to the first moving position, the boss body 261 is in a static state, and the lock 100 is in a false-locked state, so that the lock 100 satisfies the false-locked function. When there are at least two convex shafts 171 in the direction of the driven shaft 26 close to the second lock body 20, the two convex shafts 171 respectively abut against the first contact surface 264 and the second contact surface 265, so that the lock 100 has a real-locked function. The difference between the false-locked and real-locked functions of the lock 100 lies only in the single convex shaft 171 and the double convex shafts 171. Therefore, when producing locks 100 with false-locked and real-locked functions respectively, only the structure of the single convex shaft 171 and the double convex shafts 171 is used to distinguish the functions of the lock 100. Therefore, it is completely possible to customize a set of molds according to the structure of this lock 100 to realize the common use of parts for the real-locked and false-locked products, reduce the types of parts and the number of molds, and reduce the production and manufacturing costs.

[0051] In this embodiment, the driving shaft 17 is driven by a key. The driving method can be mechanical driving or electromagnetic driving. When the driving method is mechanical driving, the notch on the key corresponds to the notch on the side wall of the driving shaft 17. Rotating the key can drive the driving shaft 17 to rotate, thereby opening or closing the lock 100. When the driving method is electromagnetic driving, reference can be made to the technical solution in the patent No. 201510019552.1, which discloses a lock core for intelligent control of unlocking and locking; a magnetic signal is generated through an electrical signal, and the magnetic signal drives the magnetic core inside the lock to act. The magnetic core can be installed on the driving shaft 17, that is, by controlling the energization and de-energization of the electromagnet core on the key through a control circuit to control the gain and loss of magnetism. After the lock 100 is powered on, a magnetic suction force is generated inside the lock 100, driving the driving shaft 17 to move towards the driven shaft 26, so that the convex shaft 171 abuts against the convex platform body 261, and then rotating the key can open or close the lock 100.

[0052] As Figure 8 and Figure 10 shown, the cross-section of the convex platform body 261 is crescent-shaped, and at least a part of the outer wall of the convex platform body 261 is ridge-shaped, so that both the first contact surface 264 and the second contact surface 265 inside the convex platform body 261 are in the shape of an inner arc; the first contact surface 264 or the second contact surface 265 is arranged opposite to the outer arc surface 262 of the convex platform body 261, and the outer wall of the convex shaft 171 fits with the first contact surface 264 or the second contact surface 265. The outer wall of the convex shaft 171 fitting with the first contact surface 264 or the second contact surface 265 can increase the contact area between the convex shaft 171 and the first contact surface 264 in the first moving position and the contact area between the convex shaft 171 and the second contact surface 265 in the second moving position, thereby reducing the pressure exerted by the convex shaft 171 on the convex platform body 261 and avoiding the fracture of the convex shaft 171 caused by excessive local pressure; in the first moving position or the second moving position, the convex shaft 171 can drive the convex platform body 261 to rotate clockwise and counterclockwise. The convex shaft 171 has a moving space in the lock groove 263 and has a gap with the outer wall of the convex platform body 261, further meeting the requirement that the lock 100 with a single convex shaft 171 has a false locking function.

[0053] In this embodiment, when the convex shaft 171 is single, during the use process, if the phenomenon of mechanical aging occurs and the convex shaft 171 breaks inside the lock 100, the broken convex shaft 171 will fall into the lock groove 263 after breaking. In order to enable this lock 100 to still be used normally, the driving shaft 17 can be removed, and a new convex shaft 171 can be installed on the driving shaft 17, so that both convex shafts 171 are located in the lock groove 263. At this time, the false locking function of the lock 100 will be converted into a real locking function. By replacing smaller parts, it is ensured that this lock 100 can still be used continuously, improving the flexibility and service life of this lock 100; it is not necessary to completely scrap this lock 100 due to the damage of the convex shaft 171, and the economy of this lock 100 is also improved.

[0054] As Figure 7 and Figure 9 shown, there are two cam shafts 171, the locking groove 263 has a first slot 2631 and a second slot 2632, at least a part of one cam shaft 171 is located in the first slot 2631, at least a part of the other cam shaft 171 is located in the second slot 2632, and the outer walls of the two cam shafts 171 are respectively in contact with the first contact surface 264 and the second contact surface 265 of the boss body 261. When there are two cam shafts 171, at least a part of one cam shaft 171 is located in the first slot 2631, at least a part of the other cam shaft 171 is located in the second slot 2632, the volumes of the two cam shafts 171 respectively match the spatial sizes of the first slot 2631 and the second slot 2632, and the outer walls of the two cam shafts 171 are respectively in contact with the first contact surface 264 and the second contact surface 265 of the boss body 261; when the driving shaft 17 rotates, the two cam shafts 171 cooperate with the boss body 261 in the locking groove 263, the two cam shafts 171 are respectively located in the first slot 2631 and the second slot 2632, so that there is no gap between the outer wall of the cam shaft 171 and the outer wall of the boss body 261, and the two cam shafts 171 drive the boss body 261 to rotate. Driving the cam shaft 171 clockwise drives the boss body 261 to open the lock 100, and driving the cam shaft 171 counterclockwise drives the boss body 261 to close the lock 100, meeting the actual locking function of the lock 100 with the two cam shafts 171.

[0055] As Figure 5 、 Figure 6 and Figure 7As shown, the boss body 261 has a receiving groove 268, a positioning member 266 and a spring 267. The receiving groove 268 is located on the outer wall of the boss body 261 and is arranged opposite to the side wall of the convex shaft 171; the spring 267 is located in the receiving groove 268, the first end of the positioning member 266 is located in the receiving groove 268, the second end of the positioning member 266 contacts the inner wall of the second lock body 20, and the spring 267 is located between the positioning member 266 and the bottom wall of the receiving groove 268; the inner wall of the second lock body 20 has a positioning groove 244 that cooperates with the positioning member 266, and in the radial direction of the boss body 261, the positioning member 266 and the positioning groove 244 are staggered. At least a portion of the positioning member 266 is located in the receiving groove 268, and the spring 267 is located between the positioning member 266 and the bottom wall of the receiving groove 268. The inner wall of the second lock body 20 has a positioning groove 244 that matches the positioning member 266, and the positioning member 266 and the positioning groove 244 are staggered. The convex shaft 171 rotates to make the boss body 261 rotate passively, thereby driving the positioning member 266 to slide on the inner wall of the second lock body 20. When the convex shaft 171 rotates to a certain distance, the positioning member 266 slides to the positioning groove 244, and the positioning member 266 is squeezed to the positioning groove 244 by the spring 267. 4, the lock 100 is opened; the user can feel the force of the positioning member 266 sliding into the positioning groove 244, thereby judging whether the lock 100 is in the open state, so that the lock 100 has the function of reminding the user; when there is no large force driving, the positioning member 266 will abut against the outer wall of the positioning member 266 through the bottom wall of the positioning groove 244, so that the positioning member 266 is at least partially restricted in the positioning groove 244, avoiding the external force from driving the boss body 261 to move through the convex shaft 171, preventing the lock 100 from being locked by mistake, and improving the stability of the lock 100. In this embodiment, the positioning member 266 is a positioning bead, and the shape of the positioning groove 244 matches the shape of the positioning bead. Moreover, the distance that the convex shaft 171 rotates from the first moving position to the second moving position is equal to the distance between the positioning groove 244 and the positioning bead in the circumferential direction of the passive shaft 26, and the positioning bead cooperates with the positioning groove 244 to make the user feel the state of unlocking and locking.

[0056] like Figures 2 to 6As shown, the first lock body 10 includes a first housing 11, a second housing 12, a gasket 14, and a fastener 111. The first housing 11 has an external thread 112 on the outside. The fastener 111 has an internal thread that mates with the external thread 112. The fastener 111 is sleeved outside the first housing 11 and is in threaded cooperation with the first housing 11. The second housing 12 is installed at the first end of the first housing 11. The outer diameter of the second housing 12 is larger than the outer diameter of the first housing 11. An installation position 30 is formed between the second housing 12 and the fastener 111. The gasket 14 is sleeved outside the first housing 11 and is located at the installation position 30. When installing the first lock body 10, one end of the first housing 11 passes through the installation hole of the cabinet door. This installation position 30 is located on the circumference of the installation hole. Then, the fastener 111 is sleeved outside the first housing 11. Since the outer diameter of the second housing 12 is larger than the outer diameter of the first housing 11, the door panel abuts against the second housing 12. When the fastener 111 is in threaded cooperation with the first housing 11, it clamps the cabinet door, thus making the connection between the first lock body 10 and the door panel more stable. Moreover, when encountering a larger installation hole, the gasket 14 can be sleeved outside the first housing 11 so that the gasket 14 is located at the installation position 30, thereby filling the gap between the first housing 11 and the cabinet door. When reforming the cabinet door of a power plant substation, since the previous lock 100 of the cabinet door is larger than the reformed lock 100, the installation hole of the original cabinet door is larger, resulting in greater difficulty in the reform construction. This lock 100 can adapt to installation holes of different sizes in the cabinet door through the gasket 14, thereby reducing the reform difficulty of the power plant substation. Moreover, there is no need to replace the cabinet door, reducing the reform cost of the power plant substation.

[0057] In this embodiment, the first lock body 10 further has a fixing plate 16. The fixing plate 16 is sleeved outside the first housing 11 and is located inside the largest end of the second housing 12. A fixing hole (not shown in the figure) is provided on the second housing 12 for a bolt to pass through to fixedly connect the first housing 11 and the second housing 12.

[0058] As Figures 2 to 6As shown in the figure, the second end of the first housing 11 has a first limiting hole 113, a clamping groove 114, and a pin shaft 25. The second lock body 20 has an assembly body 24. The passive shaft 26 is located inside the assembly body 24. The assembly body 24 has a second limiting hole 241 and a convex block 242 in the direction towards the first housing 11. The convex block 242 cooperates with the clamping groove 114. The second end of the first housing 11 is sleeved outside the assembly body 24, and both the first limiting hole 113 and the second limiting hole 241 are penetrated by the pin shaft 25 to fix the first housing 11 and the assembly body 24. Through the cooperation of the convex block 242 and the clamping groove 114, and the pin shaft 25 penetrating through the first limiting hole 113 and the second limiting hole 241, the first housing 11 and the assembly body 24 are fixed. The cooperation of this convex block 242 and the clamping groove 114 can make the first housing 11 and the assembly body 24 snap-fit. After the convex block 242 cooperates with the clamping groove 114, the first limiting hole 113 corresponds to the second limiting hole 241. The convex block 242 and the clamping groove 114 also play a role in positioning the first limiting hole 113 and the second limiting hole 241, so that the pin shaft 25 quickly passes through the limiting hole 113 of the first housing 11 and is fixed in the second limiting hole 241, improving the connection stability between the first housing 11 and the assembly body 24, and at the same time improving the installation efficiency of the lock 100.

[0059] As Figures 2 to 6 shown, the first lock body 10 has a sealing ring 15. The second housing 12 is conical. The sealing ring 15 is sleeved outside the first housing 11 and is close to the largest end of the second housing 12, and the sealing ring 15 is located in the gap between the first housing 11 and the second housing 12. It can make the sealing ring 15 seal the chamber of the first lock body 10 to prevent dust from entering the first lock body 10. The smallest end of the second housing 12 has a keyhole 121 and a dust cover 13. One end of the dust cover 13 close to the keyhole 121 has a sealing plug (not shown in the figure). The dust cover 13 is movably matched with the keyhole 121 through the sealing plug. When the chamber of the second housing 12 meets the installation requirements of each component, setting the second housing 12 to be conical can make the inner cavity of the second housing 12 gradually shrink, resulting in a smaller opening of the keyhole 121, thereby further preventing dust from entering the keyhole 121. And the dust cover 13 is movably matched with the keyhole 121 to seal the keyhole 121 when not unlocking, further preventing dust from entering the keyhole 121, avoiding dust from affecting the cooperation of each component in the lock 100, and improving the stability of the lock 100.

[0060] As Figures 2 to 6As shown, one end of the boss body 261 gradually decreases from one end of the boss body 261 to the other end, so that the boss body 261 has a stepped structure, and the smallest end of the boss body 261 is arranged close to the driving shaft 17; the first lock body 10 also has an elastic snap ring 18, the inner side of the elastic snap ring 18 is sleeved on the outer wall of the smallest end of the boss body 261, and the outer side of the elastic snap ring 18 abuts against the inner wall of the first shell 11; when the boss body 261 rotates, the elastic snap ring 18 improves the compactness of the boss body 261 and the first shell 11, and can also play a shock-absorbing role when the boss body 261 rotates.

[0061] like Figure 2 As shown, the passive shaft 26 includes a first shaft body 260 and a second shaft body 206. The first shaft body 260 and the second shaft body 206 are an integrated structure. The first shaft body 260 is fixed to the boss body 261. The cross section of the first shaft body 260 is circular, and the cross section of the second shaft body 206 is square. The end of the second shaft body 206 away from the first shaft body 260 has a threaded hole; the second lock body 20 includes a steel bolt 21, a limiting plate 22 and a screw 23. The steel bolt 21 and the limiting plate 22 are both sleeved on the outside of the second shaft body 206. The length of the steel bolt 21 is The degree direction intersects with the axial direction of the second axis 206, and the limit plate 22 is located between the steel bolt 21 and the first axis 260; the steel bolt 21 has a fixing hole, the screw 23 passes through the fixing hole, cooperates with the threaded hole, and clamps the steel bolt 21 and the limit plate 22; the limit plate 22 has a first limit block 221 on the circumference, and the assembly body 24 of the second lock body 20 has a second limit block 243 on the circumference, the first limit block 221 is staggered relative to the second limit block 243, and the first limit block 221 is used to abut against the second limit block 243. The cross section of the first shaft body 260 is circular, and the first shaft body 260 is fixed to the boss body 261, so that the boss body 261 can drive the first shaft body 260 to rotate in the assembly 24, and the steel bolt 21 and the limit plate 22 are sleeved on the outside of the second shaft body 206. The cross section of the second shaft body 206 is square, which improves the circumferential stability of the steel bolt 21 and the second shaft body 206, so that the second shaft body 206 can drive the steel bolt 21 to rotate during rotation, thereby separating the steel bolt 21 from the door groove of the cabinet door, and passing the screw 23 through the fixing hole of the steel bolt 21 to clamp the steel bolt 21 and the limit plate 22, thereby improving the overall structural stability of the second lock body 20; the first limit block 221 and the second limit block 243 are staggered, and the first limit block 221 is used to abut against the second limit block 243, which can improve the connection stability between the limit plate 22 and the assembly 24 of the second lock body 20, and further improve the stability of the overall structure of the second lock body 20.

[0062] like Figures 8 to 10 As shown, the present invention also provides a method for using the lock 100 .

[0063] (1) The initial state of the lock 100 is locked. When the lock 100 has a double convex shaft 171, or when the volume of a single convex shaft 171 completely fits the space of the lock groove 263, the following steps are included:

[0064] Step 1: In the first direction, the double convex shaft 171 moves from the first moving position to the second moving position. The double convex shaft 171 drives the convex platform body 261 to rotate, and the positioning member 266 slides into the positioning groove 244, and the lock 100 is opened;

[0065] Step 2: In the second direction, the double convex shaft 171 moves from the second moving position to the first moving position. The double convex shaft 171 drives the convex platform body 261 to rotate, and the positioning member 266 moves out of the positioning groove 244, and the lock 100 is closed.

[0066] (2) The initial state of the lock 100 is locked. When the lock 100 has a single convex shaft 171, the following steps are included:

[0067] Step 1: In the first direction, the convex shaft 171 moves from the first moving position to the second moving position. The convex shaft 171 drives the convex platform body 261 to rotate, and the positioning member 266 slides into the positioning groove 244, and the lock 100 is opened;

[0068] Step 2: In the second direction, the convex shaft 171 moves from the second moving position to the first moving position. Specifically, the convex shaft 171 moves from the first slot 2361 to the second slot 2632. The convex shaft 171 cannot drive the convex platform body 261 to rotate; the static state of the convex platform body 261 causes the lock 100 to be in a pseudo-locked state;

[0069] Step 3: Move the convex shaft 171 again in the second direction so that the convex shaft 171 moves to the third moving position. The convex shaft 171 drives the convex platform body 261 to rotate, and the lock 100 is closed.

[0070] In this embodiment, the convex shaft 171 needs to satisfy the unlocking function at the first moving position, and the convex shaft 171 needs to satisfy the locking function and the pseudo-locking function at the second moving position. Therefore, when the convex shaft 171 has the first moving position and the second moving position, the lock 100 with a single convex shaft 171 and a double convex shaft 171 can respectively have the pseudo-locking and real-locking functions. However, in this embodiment, the convex shaft 171 can move in the first direction or the second direction; therefore, the first moving position, the second moving position, and the third moving position are not limited to the specific positions on the lock groove 263.

[0071] In this embodiment, the first direction is the clockwise direction, and the second direction is the counterclockwise direction. The angles between the first moving position and the second moving position and between the first moving position and the third moving position are 90°. The second moving position and the third moving position are respectively located on both sides of the first moving position. Therefore, when the camshaft 171 rotates 90°, the unlocking, locking, and false position states can be achieved. Through the usage method of this lock 100, when the lock 100 has two camshafts 171, it has the real locking function; when the lock 100 has one camshaft 171, it has the false locking function; moreover, the operation is simple and the applicability is good.

[0072] The above embodiments are not an exhaustive list based on the present invention. In addition, there may be multiple other embodiments not listed. Any replacement and improvement made on the basis of not violating the concept of the present invention fall within the protection scope of the present invention.

Claims

1. A lock, characterized in that, The invention comprises a first lock body and a second lock body, wherein the first lock body is mounted on the second lock body, the first lock body has a driving shaft, the driving shaft has at least one convex shaft in a direction close to the second lock body, and the convex shaft is located in the circumferential direction of the driving shaft; The second lock body has a passive shaft, and one end of the passive shaft facing the convex shaft has a boss body, and a lock groove is formed between the outer wall of the boss body and the inner wall of the second lock body, and at least a part of the convex shaft is located in the lock groove; In which, the protruding shaft has a first moving position and a second moving position in the circumferential direction of the driving shaft, and the outer wall of the boss body has a first contact surface and a second contact surface. In the first moving position, the protruding shaft is used to abut against the first contact surface of the boss body, and in the second moving position, the protruding shaft is used to abut against the second contact surface of the boss body.

2. The lock according to claim 1, characterized in that, The cross-section of the boss body is crescent-shaped, and at least a portion of the outer wall of the boss body is ridge-shaped, and the first contact surface and the second contact surface are both in the shape of an inner arc; the first contact surface or the second contact surface is arranged opposite to the outer arc surface of the boss body, and the outer wall of the convex shaft is in contact with the first contact surface and / or the second contact surface.

3. The lock according to claim 1, characterized in that, The cam shafts have two, and the lock groove has a first groove position and a second groove position, wherein at least a portion of one of the cam shafts is located in the first groove position, and at least a portion of the other cam shaft is located in the second groove position, and the outer walls of the two cam shafts are in contact with the first contact surface and the second contact surface of the boss body, respectively.

4. The lock according to any one of claims 1 to 3, characterized in that The boss body has a receiving groove, a positioning piece and a spring, the receiving groove is located on the outer wall of the boss body and is arranged opposite to the convex shaft; the spring is located in the receiving groove, the first end of the positioning piece is located in the receiving groove, the second end of the positioning piece contacts the inner wall of the second lock body, and the spring is located between the positioning piece and the bottom wall of the receiving groove; the inner wall of the second lock body has a positioning groove matching the positioning piece, and in the radial direction of the boss body, the positioning piece and the positioning groove are staggered.

5. The lock according to any one of claims 1 to 3, characterized in that, The first lock body includes a first shell, a second shell, a gasket and a fastener. The first shell has an external thread on the outside. The fastener is sleeved on the outside of the first shell and cooperates with the first shell thread. The second shell is installed on the first end of the first shell. The outer diameter of the second shell is larger than the outer diameter of the first shell. A mounting position is formed between the second shell and the fastener. The gasket is sleeved on the outside of the first shell and is located at the mounting position.

6. The lock according to claim 5, characterized in that The second end of the first shell has a first limiting hole, a slot, and a pin shaft, the second lock body has an assembly body, the passive shaft is located in the assembly body, the assembly body has a second limiting hole and a protrusion facing the first shell, and the protrusion cooperates with the slot; the second end of the first shell is sleeved outside the assembly body, and the first limiting hole and the second limiting hole are both for the pin shaft to pass through, so that the first shell is fixed to the assembly body.

7. The lock according to claim 5, characterized in that , The first lock body has a sealing ring. The second housing is conical. The sealing ring is sleeved outside the first housing and is close to the largest end of the second housing, and the sealing ring is located in the gap between the first housing and the second housing; The smallest end of the second housing has a keyhole and a dust cover. One end of the dust cover close to the keyhole has a sealing plug, and the dust cover is movably matched with the keyhole through the sealing plug.

8. The lock according to claim 5, characterized in that, One end of the boss body gradually decreases from one end to the other end of the boss body, and the smallest end of the boss body is close to the driving shaft; The first lock body also has an elastic snap ring. The inner side of the elastic snap ring is sleeved on the outer wall of the smallest end of the boss body, and the outer side of the elastic snap ring abuts against the inner wall of the first housing.

9. The lock according to any one of claims 1 to 3, characterized in that , The driven shaft includes a first shaft body and a second shaft body. The first shaft body and the second shaft body are of an integral structure. The first shaft body is fixed to the boss body. The cross-section of the first shaft body is circular, and the cross-section of the second shaft body is square. One end of the second shaft body away from the first shaft body has a threaded hole; The second lock body further includes a steel bolt, a limiting plate and a screw. The steel bolt and the limiting plate are both sleeved outside the second shaft body. The length direction of the steel bolt intersects with the axial direction of the second shaft body, and the limiting plate is located between the steel bolt and the first shaft body; The steel bolt has a fixing hole, and the screw passes through the fixing hole, cooperates with the threaded hole, and clamps the steel bolt and the limiting plate; The circumferential direction of the limiting plate has a first limiting block, and the circumferential direction of the second lock body has a second limiting block. The first limiting block is staggeredly arranged relative to the second limiting block, and the first limiting block is used to abut against the second limiting block.

10. The method of using the lock according to any one of claims 1 to 9, characterized in that including the following steps: When the number of convex shafts is single, in the first direction, the convex shaft moves from the first moving position to the second moving position, the convex shaft drives the boss body to rotate, and the lock is opened; In the second direction, the convex shaft moves from the second moving position to the first moving position, the convex shaft cannot drive the boss body to rotate, and the lock is in a false locked state; Move the convex shaft in the second direction again, so that the convex shaft moves to the third moving position, the convex shaft drives the boss body to rotate, and the lock is closed; When the number of convex shafts is double, in the first direction, the convex shaft moves from the first moving position to the second moving position, the convex shaft drives the boss body to rotate, and the lock is opened; In the second direction, the double convex shafts move from the second moving position to the first moving position, and the double convex shafts drive the boss body to rotate, and the lock is closed.

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