Locking device capable of achieving anti-shake-off function
By designing a locking device including a sleeve, a lock body, a positioner, an inner handle and an outer handle, the problem of shock-disappearance in the prior art locking device is solved, and higher sealing and protective performance is achieved, and operation and maintenance are simplified.
Patent Information
- Application Number
- CN202421829484.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing locking devices are prone to vibration when the structure vibrates, affecting the sealing and protective performance of the protective equipment.
A locking device including a sleeve, a lock body, a positioner, an inner handle and an outer handle is designed. The positioner pushes the positioner into the spherical groove through a compression spring, ensuring that the lock is locked and prevents vibration dissipation under vibrating loads.
It effectively prevents the locking device from vibrating and dislodging under vibrating loads, improves the sealing and protective performance of the protective equipment, and simplifies the operation and maintenance of the lock body.
Smart Images
Figure CN222909679U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of civil air defense engineering, and specifically relates to a locking device capable of realizing shockproof and anti - detachment functions. Background Technique
[0002] The locking device is an important part of the protection equipment, and its main functions are twofold: one is to bear the reverse load to ensure that the protection equipment remains closed under the action of the shock wave; the other is to make the door leaf and the door frame in close contact, ensure the compression amount of the sealing strip, and ensure the airtight function of the protection equipment.
[0003] According to the different movement modes of the lock head, the commonly used locks at present are of two types: sliding bolt type lock (the lock head rotates) and plug - pin type lock (the lock head moves horizontally / vertically). The lock is generally welded and fixed on the door body of the protection equipment, and the lock hole and the lock box are generally arranged on the door frame. As the main load - bearing component, the lock head is generally made of metal materials with relatively high strength.
[0004] At present, when designing the locking device at home and abroad, less consideration is given to shockproof and anti - detachment measures, and more consideration is given to the stroke limiting measures of the lock head of the lock. For example, a limit bolt is set on the lock seat of the plug - pin type lock, and a positioning magnet is set at the opening position of the linkage sliding bolt type lock. When the door body of the protection equipment is under the action of the explosion shock wave load, structural vibration will occur, so its locking device is prone to shock detachment, which will affect the protection and airtight functions of the equipment. Therefore, it is of great significance to propose a locking device with shockproof and anti - detachment functions for improving the protection and airtight performance of the protection equipment, and it has good popularization and application value. Content of the Utility Model
[0005] The purpose of the utility model is to provide a locking device capable of realizing shockproof and anti - detachment functions to solve the problems such as the easy shock detachment of the locking device when the structure vibrates mentioned in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A locking device capable of realizing shockproof and anti - detachment functions, comprising:
[0008] A sleeve, the sleeve passes through the door body and is welded to the door body, the first end of the sleeve is located inside the door body, and the second end is located outside the door body;
[0009] A lock body, the lock body includes a lock head, a shoulder and a lock shaft. The lock shaft is rotatably arranged in the sleeve to drive the lock head to insert into or away from the lock hole. The first end of the lock shaft is connected to the shoulder located outside the first end of the sleeve, the shoulder is connected to the lock head, the second end of the lock shaft extends to the outside of the second end of the sleeve, and a seal is arranged between the lock shaft and the sleeve;
[0010] Positioner, the positioner includes a sleeve, a spring and a positioning member; the sleeve is fixed to the inner side of the door body, and the axis of the sleeve is distributed radially along the axial shoulder. The spring is compressibly arranged in the sleeve, and the positioning member is fixedly connected to the spring. The axial shoulder is provided with a first spherical groove and a second spherical groove along its radial direction, so that when the lock head is inserted into the lock hole, the spring pushes the positioning member into the first spherical groove. When the lock head is away from the lock hole, the spring pushes the positioning member into the second spherical groove;
[0011] Inner handle, the inner handle is detachably connected to the lock head, and the inner handle is used to drive the lock body to rotate;
[0012] Outer handle, the outer handle is detachably connected to the second end of the lock shaft, and the outer handle is used to drive the lock body to rotate. By setting the positioner, when the lock head is inserted into the lock hole, the compressed spring in the positioner pushes the positioning member into the first spherical groove to ensure that the lock head is locked and does not fall off under the action of vibration load, improving the reliability of locking; when the lock head is away from the lock hole, the compressed spring in the positioner pushes the positioning member into the second spherical groove to prevent the inner handle and the outer handle from falling by themselves after being lifted to open the door, realizing the fixation of the inner handle and the outer handle.
[0013] Further, the positioner further includes a support member; the support member is arranged in the sleeve with adjustable length, and the spring is sleeved on the outer periphery of the support member. Through this setting, the compressed spring can be supported to prevent it from being deformed by extrusion.
[0014] Further, the support member includes a support bolt and a first nut. The first nut is located on the side of the sleeve away from the axial shoulder, and the support bolt is installed in the sleeve with adjustable length through the first nut. Through this setting, it is simple and practical, and it is convenient to adjust the length of the support bolt extending into the sleeve, so as to support the compressed spring and prevent it from deforming.
[0015] Further, the positioner further includes a base and a fixing member; the sleeve is fixed to the base, and the base is detachably connected to the inner side of the door body through the fixing member. The fixing member can be selected as a screw, etc., and the base is fixed to the inner side of the door body by using the screw.
[0016] Further, it further includes a wear-resistant bushing. The wear-resistant bushing is located on the inner wall of the sleeve and contacts the lock shaft, and is used to reduce the friction between the lock shaft and the sleeve, which can ensure that the locking operation is light and improve the service life of locking
[0017] Further, the number of the wear-resistant bushings is two, and the two wear-resistant bushings are respectively arranged near the two ends of the sleeve. Through this setting, the two wear-resistant bushings are evenly distributed to reduce the friction between the lock shaft and the sleeve, which can ensure that the locking operation is light and improve the service life of locking.
[0018] Further, it also includes a sealing ring, which is located between the lock shaft and the sleeve to seal between the lock shaft and the sleeve. This sealing ring is an O-ring, which can ensure that there is no air leakage at the mating part of the locking body and the sleeve, and improve the airtight performance of the protection equipment.
[0019] Further, the outer handle includes a handle and a connecting sleeve connected to each other. A keyway is opened inside the connecting sleeve. The connecting sleeve is sleeved on the second end of the lock shaft and is connected to the lock shaft through a flat key. Through this setting, the outer handle and the lock shaft are connected by a flat key, which is simple, practical and convenient to operate.
[0020] Further, it also includes a second fixing nut, which is installed at the end of the second end of the lock shaft to lock the connecting sleeve.
[0021] Further, the lock head includes a bent head part and a locking part. An installation groove is opened on the outer side of the bent head part. The inner handle is threadedly connected to the installation groove. The end of the locking part has a stepped inclined surface to gradually press the sealing strip on the door frame.
[0022] The utility model has the following advantages compared with the prior art:
[0023] 1. The present invention relates to a locking device capable of realizing shock-proof and anti-disengagement functions, which includes a positioner. When the lock head of the lock body moves into the lock hole of the door frame, the protection equipment is in a closed state at this time. The compression spring in the positioner pushes the positioning member into the first spherical groove to ensure that the lock head is locked, and the sealing strip on the door leaf is fully compressed to ensure the airtightness of the protection equipment; when the protection equipment is struck, the lock head is in a locked state, and the lock head can bear the rebound load brought by the vibration of the door body structure, so that the door body of the protection equipment is reliably fixed on the door frame. At the same time, the lock head has a shock-proof and anti-disengagement function due to the setting of the positioner; when the lock head of the lock body is away from the lock hole of the door frame, the protection equipment is in an open state at this time. The compression spring in the positioner pushes the positioning member into the second spherical groove to fix the positions of the lock head, the inner handle and the outer handle, and realize the positioning function of the lock head and the handle, avoiding the inner handle and the outer handle from falling down by themselves after being lifted when opening the door, or the lock head rotating randomly due to accidentally touching the inner handle or the outer handle.
[0024] 2. The locking device capable of realizing shock-proof and anti-disengagement functions of the present utility model can ensure light locking operation and improve the service life of the lock by setting 2 groups of wear-resistant bushings (MGC-1). Setting an O-ring can ensure that there is no air leakage at the mating part of the locking body and the sleeve, and improve the airtight performance of the protection equipment. In addition, the lock body and the sleeve can be disassembled by using the combination of the second fixing nut and the flat key, so as to facilitate the maintenance and replacement of the lock body; compared with similar products, the locking device proposed by the present utility model has high reliability, compact structure, good economy, excellent use performance, remarkable innovation, and has good popularization and application value. Description of the Drawings
[0025] Figure 1 This is a schematic structural diagram of a locking device capable of realizing shock and disconnection prevention functions in an embodiment of the present utility model;
[0026] Figure 2 This is a schematic structural diagram of a lock body in a locking device capable of realizing shock and disconnection prevention functions in an embodiment of the present utility model;
[0027] Figure 3 This is a schematic structural diagram of an outer handle in a locking device capable of realizing shock and disconnection prevention functions in an embodiment of the present utility model;
[0028] In the figure: 1. Sleeve; 2. Lock body; 201. Lock head; 202. Shoulder; 203. Lock shaft; 204. Bent head; 205. Locking part; 206. Installation groove; 207. Step inclined surface; 3. Sleeve; 4. Spring; 5. Positioning part; 6. First spherical groove; 7. Second spherical groove; 8. Inner handle; 9. Outer handle; 901. Handle; 902. Connecting sleeve; 10. Support bolt; 11. First nut; 12. Base; 13. Fixing part; 14. Wear-resistant bushing; 15. Sealing ring; 16. Second fixing nut; 17. Gasket; 18. Keyway; 19. Door body; 20. Door frame; 21. Sealing strip; 22. Thread section. Detailed implementation manners
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0030] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0031] In addition, it should be understood that, for the convenience of description, the sizes of the various components shown in the accompanying drawings are not drawn according to the actual proportional relationship.
[0032] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further specifically discuss and describe it in the description of subsequent drawings.
[0033] Embodiment:
[0034] A lock hole is formed in the door frame 20 of the protective door. A sealing strip 21 is arranged around the door frame 20. After the door body 19 is closed and the lock head 201 is inserted into the lock hole, the door body 19 presses the sealing strip 21 to ensure the airtight function of the protective door.
[0035] As Figure 1 、 Figure 2 As shown, the present utility model provides a locking device capable of realizing earthquake-proof and anti-disengagement functions, including: a sleeve 1, the sleeve 1 passes through the door body 19 and is welded to the door body 19. The first end of the sleeve 1 is located inside the door body 19, and the second end is located outside the door body 19;
[0036] A lock body 2, the lock body 1 includes a lock head 201, a shoulder 202 and a lock shaft 203. The lock shaft 203 is rotatably arranged in the sleeve 1 to drive the lock head 201 to insert into or away from the lock hole of the door frame 20. The first end of the lock shaft 203 is connected to the shoulder 202 located outside the first end of the sleeve 1, wherein one end face of the shoulder 202 contacts the first end of the sleeve 1, and the other end face is connected to the lock head 201. Or a gasket or a sealing ring can be arranged between the shoulder 202 and the first end of the sleeve 3 to ensure the sealing effect between the shoulder 202 and the first end of the sleeve 1. The second end of the lock shaft 203 extends to the outside of the second end of the sleeve 1 for facilitating the connection of an external handle 9. A sealing is arranged between the lock shaft 203 and the sleeve 1;
[0037] The positioner comprises a sleeve 3, a spring 4 and a positioning member 5; the sleeve 3 is fixed to the inner side of the door body 19, and the axis of the sleeve 3 is distributed along the radial direction of the shoulder 202, the spring 4 is compressibly arranged in the sleeve 3, the positioning member 5 is fixedly connected to the spring 4, and the shoulder 202 is provided with a first spherical groove 6 and a second spherical groove 7 along its radial direction, so that when the lock head 201 is inserted into the lock hole, the spring 4 pushes the positioning member 5 into the first spherical groove 6, and when the lock head 201 is away from the lock hole, the spring 4 pushes the positioning member 5 into the second spherical groove 7; wherein the spring 4 is in a compressed state in the sleeve 3, and when the lock body 2 rotates, the shoulder 202 rotates accordingly, and the positioning member 5 contacts the shoulder 202 under the pressure of the compression spring 4, slides on the surface of the shoulder 202, and thus falls into and out of the first spherical groove 6 and the second spherical groove 7. The positioning member 5 is a steel ball or other spherical member. The outer surface of the positioning member and the inner surfaces of the first spherical groove and the second spherical groove are all set to be spherical. The smooth surface of the sphere facilitates the positioning member to fall into or out of the first spherical groove or the second spherical groove, and reduces the friction force of moving on the shoulder surface, thereby achieving the purpose of saving effort while ensuring anti-shock and disengagement.
[0038] The inner handle 8 is detachably connected to the lock head 201, and the inner handle 8 is used to drive the lock body 2 to rotate; the inner handle 8 is arranged on the inner side of the door body 19, and when the inner handle 8 is pushed on the inner side of the door body 19, the lock body 2 can be driven to rotate, so that the lock head 201 is inserted into or away from the lock hole, thereby realizing locking or unlocking of the door body 19.
[0039] The outer handle 9 is detachably connected to the second end of the lock shaft 203, and is used to drive the lock body 2 to rotate. The outer handle 9 is arranged on the outside of the door body 19. When the outer handle 9 is pushed outside the door body 19, the lock body 2 can be driven to rotate, so that the lock head 201 is inserted into or away from the lock hole, thereby locking or unlocking the door body 19.
[0040] The locking device in this embodiment has the characteristics of simple structure and reliable strength. In normal use: the door body 19 is brought close to the door frame 20, the inner handle 8 or the outer handle 9 is turned, the lock head 201 is inserted into the lock hole, and the door body 19 is closed. At this time, the compression spring 4 in the positioner pushes the positioning member 5 into the first spherical groove 6 to ensure that the lock head 201 is locked and does not fall out under the action of the vibration load, thereby improving the reliability of the locking; when the door body 19 needs to be opened, the inner handle 8 or the outer handle 9 is turned forcefully, and the shoulder 202 squeezes the positioning member 5 to make it disengage from the first spherical groove 6, releasing the anti-shock state, and continuing to turn the inner handle 8 or the outer handle 9, so that the positioning member 5 and the shoulder 202 are in friction contact and then enter the second spherical groove 7, at this time, the lock head 201 is away from the lock hole, and the positions of the lock head 201, the inner handle 8 and the outer handle 9 can be fixed to prevent the inner handle 8 and the outer handle 9 from falling down automatically after opening the door and lifting, thereby achieving the fixing of the inner handle 8 and the outer handle 9.
[0041] In this embodiment, the locator further includes a support member; the length of the support member is adjustably arranged in the sleeve 3, and the spring 4 is sleeved on the outer periphery of the support member. The compressed spring is sleeved on the outer periphery of the support member, so that the spring axis direction is radially distributed along the shoulder. The support member is provided to prevent the spring from being deformed by extrusion. The length of the support member in the sleeve is adjustable, and the length of the support member in the sleeve can be adjusted according to the elastic coefficient and compression amount of the compressed spring.
[0042] Specifically, during implementation: the support member includes a support bolt 10 and a first nut 11. The first nut 11 is located on the side of the sleeve 3 away from the shoulder 202. The support bolt 10 passes through the first nut 11 and then enters the inside of the sleeve 3, and is threadedly connected to the end of the sleeve 3 away from the shoulder 202 (the end of the sleeve away from the shoulder has a threaded hole adapted to the support bolt, and the inner diameter of the sleeve is larger than this threaded hole so that the spring can be sleeved on the outer periphery of the support bolt). The length of the support bolt 10 extending into the sleeve 3 can be adjusted by rotating the support bolt 10. With this setting, the structure is simple and easy to operate.
[0043] In this embodiment, the locator further includes a base 12 and a fixing member 13; the sleeve 3 is fixed to the base 12, and the base 12 is detachably connected to the inner side of the door body 19 through the fixing member 13. The fixing member 13 can be selected as a screw, etc., and the base 12 is fixed to the inner side of the door body by using the screw.
[0044] In this embodiment, a wear-resistant bushing (MGC-1) 14 is further provided on the inner wall of the sleeve 1. The wear-resistant bushing 14 contacts the lock shaft 203 to reduce the friction between the lock shaft 203 and the sleeve 1, which can ensure that the locking operation is light and improve the service life of the locking. Specifically, the number of the wear-resistant bushings 14 is two, and the two wear-resistant bushings 14 are respectively arranged near both ends of the sleeve 1. With this setting, the two wear-resistant bushings are evenly distributed to reduce the friction between the lock shaft 203 and the sleeve 1, which can ensure that the locking operation is light and improve the service life of the locking.
[0045] In this implementation, a sealing ring 15 is further included. The sealing ring 15 is located between the lock shaft 203 and the sleeve 1 to seal between the lock shaft 203 and the sleeve 1. This sealing ring is an O-ring, which can ensure that there is no air leakage at the mating part of the locking body and the sleeve, and improve the sealing performance of the protection device.
[0046] Such as Figure 2 and Figure 3As shown, the outer handle 9 includes a handle 901 and a connecting sleeve 902 which are connected. A keyway 18 is formed inside the connecting sleeve 902. A keyway is also formed in the part of the second end of the lock shaft 202 located outside the sleeve 1. The connecting sleeve 902 is sleeved on the second end of the lock shaft 203 and is connected to the lock shaft 203 by a flat key. With this setting, the outer handle and the lock shaft are connected by a flat key, which is simple, practical and convenient to operate.
[0047] A threaded section 22 is further provided at the end of the second end of the lock shaft 203. By providing a second fixing nut 16 and a gasket 17, the second fixing nut and the gasket are installed on the threaded section 22 at the end of the second end of the lock shaft 203, so as to lock the connecting sleeve 902 and prevent the outer handle 9 from moving axially along the lock shaft.
[0048] The lock head 201 includes a bent head 204 and a locking portion 205. An installation groove 206 is formed on the outer side of the bent head 204. The inner handle 8 is threadedly connected to the installation groove 206. The end of the locking portion 205 has a stepped inclined surface 207, which can ensure smooth contact and close fit between the locking portion 205 and the inclined surface of the lock hole in the door frame.
[0049] The locking device of the present invention capable of realizing the shock-proof and anti-disengagement function has the characteristics of simple structure and reliable strength. When the protective equipment is struck, the door body is closed, the locking portion 205 is located in the lock hole, and the lock head 201 can bear the rebound load brought by the vibration of the door body structure, so that the door body of the protective equipment is reliably fixed on the door frame. At the same time, a positioner is provided to make the lock head have the shock-proof and anti-disengagement function. During daily use, after the lock is locked, it can ensure that the sealing strip on the door leaf is fully compressed, ensuring the effective play of the airtight function of the protective equipment. When the door body is opened, the positioner can prevent the handle from falling by itself after being lifted to open the door, or accidentally touching the handle and the lock head rotating randomly.
[0050] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A locking device capable of realizing the anti-shock disengagement function, characterized in that: include: A sleeve, the sleeve passes through the door body and is welded to the door body, the first end of the sleeve is located inside the door body, and the second end is located outside the door body; A lock body, the lock body comprising a lock head, a shoulder and a lock shaft, the lock shaft being rotatably arranged in the sleeve to drive the lock head to be inserted into or away from the lock hole, the first end of the lock shaft being connected to the shoulder located outside the first end of the sleeve, the shoulder being connected to the lock head, the second end of the lock shaft extending to the outside of the second end of the sleeve, and a seal being arranged between the lock shaft and the sleeve; A positioner, the positioner comprising a sleeve, a spring and a positioning piece; the sleeve is fixed to the inner side of the door body, and the axis of the sleeve is distributed along the radial direction of the shaft shoulder, the spring is compressibly arranged in the sleeve, the positioning piece is fixedly connected to the spring, and the shaft shoulder is provided with a first spherical groove and a second spherical groove along its radial direction, so that when the lock head is inserted into the lock hole, the spring pushes the positioning piece into the first spherical groove, and when the lock head is away from the lock hole, the spring pushes the positioning piece into the second spherical groove; An inner handle, the inner handle is detachably connected to the lock head, and the inner handle is used to drive the lock body to rotate; An outer handle is detachably connected to the second end of the lock shaft, and the outer handle is used to drive the lock body to rotate.
2. The locking device capable of realizing the anti-shock disengagement function according to claim 1, characterized in that: The positioner also includes a support member; the support member is adjustable in length and is arranged in the sleeve, and the spring is sleeved on the outer periphery of the support member.
3. The locking device capable of realizing the anti-shock disengagement function according to claim 2, characterized in that: The support member comprises a support bolt and a first nut. The first nut is located at a side of the sleeve away from the shaft shoulder. The support bolt is installed inside the sleeve in an adjustable length through the first nut.
4. The locking device capable of realizing the anti-shock disengagement function according to claim 1, characterized in that: The positioner also includes a base and a fixing member; the sleeve is fixed to the base, and the base is detachably connected to the inner side of the door body through the fixing member.
5. The locking device capable of realizing the anti-shock disengagement function according to claim 1, characterized in that: It also includes a wear-resistant sleeve, which is located on the inner wall of the sleeve and contacts the lock shaft to reduce the friction between the lock shaft and the sleeve.
6. The locking device capable of realizing the anti-shock disengagement function according to claim 5, characterized in that: The number of the wear-resistant sleeves is two, and the two wear-resistant sleeves are respectively arranged close to the two ends of the sleeve.
7. The locking device capable of realizing the anti-shock disengagement function according to claim 5, characterized in that: A sealing ring is also included, and the sealing ring is located between the lock shaft and the sleeve to seal between the lock shaft and the sleeve.
8. The locking device capable of realizing the anti-shock disengagement function according to claim 1, characterized in that: The outer handle comprises a handle and a connecting sleeve connected to each other, a keyway is provided inside the connecting sleeve, and the connecting sleeve is sleeved on the second end of the lock shaft and connected to the lock shaft via a flat key.
9. The locking device capable of realizing the anti-shock disengagement function according to claim 8, characterized in that: It also includes a second fixing nut, which is installed on the end of the second end of the lock shaft to lock the connecting sleeve.
10. The locking device capable of realizing the anti-shock disengagement function according to claim 9, characterized in that: The lock head comprises an elbow portion and a locking portion, a mounting groove is formed on the outer side of the elbow portion, the inner handle is threadedly connected to the mounting groove, and the end of the locking portion has a stepped slope for gradually tightening the sealing strip on the door frame.