Hasp and lock
By changing the distance between the first and second ends of the torsion spring, the self-locking of the handle of the snap-lock is achieved, solving the problems of complex structure and high cost, simplifying the design of the lock and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONG SHAN OLANG METAL PROD CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-28
AI Technical Summary
The locks available on the market are complex in structure and have high production costs.
By changing the distance between the first and second ends of the torsion spring, the self-locking of the handle is achieved, simplifying the structure of the snap-lock and reducing production costs.
The self-locking function of the handle was implemented, which simplified the structure and reduced the cost.
Smart Images

Figure CN224565930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to a snap-lock type bolt lock and an integrated snap-lock. Background Technology
[0002] In related technical solutions, the lock body latch and the bolt are installed in different positions to respectively accommodate the bolt and control the extension or retraction of the bolt via a handle. There is also a latch-type bolt lock on the market that integrates the lock body latch and bolt functions into one unit; however, the latch-type bolt lock on the market has a complex structure and high production costs. Utility Model Content
[0003] The purpose of this utility model embodiment is to provide a simpler snap-lock type latch lock and an integrated snap-lock box to solve the above-mentioned problems. This utility model embodiment achieves the above objective through the following technical solutions.
[0004] In a first aspect, this utility model provides a snap-lock type, comprising:
[0005] The lock case has a first column and a second column spaced apart;
[0006] A latch connector is movably disposed on the lock housing;
[0007] A handle, rotatably mounted on the first post, is kinetically connected to the latch connector to move the latch connector. The handle has a flat position and a raised position. In one of these positions, the latch connector extends relative to the lock housing; in the other position, it retracts relative to the lock housing. The handle also has a third post spaced apart from the first post.
[0008] A torsion spring includes a first end and a second end opposite to each other. The first end is connected to the second column, and the second end is connected to the third column. During the process of rotating the handle from the flat state to the raised state, the distance between the first end and the second end first decreases and then increases.
[0009] In one embodiment, the first column has a first axis, the second column has a second axis, and the third column has a third axis. The first axis, the second axis, and the third axis are parallel to each other, wherein the first axis, the second axis, and the third axis can be located in the same plane during the process of the handle rotating from the flat state to the raised state.
[0010] In one embodiment, the torsion spring includes a spring body, a first torsion arm, and a second torsion arm. The first torsion arm and the second torsion arm extend from the spring body in different directions. The spring body is suspended inside the lock housing. The first end is located at the end of the first torsion arm opposite to the spring body, and the second end is located at the end of the second torsion arm opposite to the spring body.
[0011] And / or, the pin connector is provided with a guide groove extending along the length direction of the pin connector, and the second column passes through the guide groove.
[0012] In one embodiment, the handle includes a rotating part and a free end away from the rotating part. The rotating part is rotatably disposed on the first column, and the third column is disposed on the rotating part. The third column and the free end are respectively disposed on opposite sides of the first column.
[0013] In one embodiment, the snap-lock further includes a first stop and a second stop disposed inside the lock housing. The handle includes a first abutment surface, a second abutment surface, and an arc surface connecting the first abutment surface and the second abutment surface. The arc surface is disposed between the first column and the second column. When the handle is in the flat position, the first abutment surface abuts against the first stop. When the handle is in the raised position, the second abutment surface abuts against the second stop.
[0014] In one embodiment, the handle further includes a connecting portion connecting the rotating part and the free end, and the snap-lock further includes a stop member disposed within the lock housing. The stop member is disposed on the side of the first column opposite to the second column. The stop member has a receiving groove and a clearance groove communicating with the receiving groove. The free end can be received in the receiving groove, and the connecting portion can pass through the clearance groove. The first stop member is disposed at the bottom of the receiving groove, and the second stop member is disposed on the side of the clearance groove opposite to the receiving groove.
[0015] In one embodiment, the lock housing includes a housing and a liner connected to one side of the housing. The first post, the second post, and the pin connector are all disposed in the housing. The liner has an opening for the bolt to extend into. The stop and the liner are spaced apart to form a receiving cavity for receiving the bolt between the stop and the liner. The opening communicates with the receiving cavity.
[0016] In one embodiment, when the handle is in the flat position, the free end is received in the receiving groove, and the second abutting surface is flush with the surface of the stop member facing away from the second column; when the handle is in the raised position, the connecting part passes through the clearance groove.
[0017] In one embodiment, the handle includes a rotating part and a free end away from the rotating part. The free end is used for a lifting operation. The rotating part is rotatably disposed on the first column. The outer periphery of the rotating part is provided with a plurality of first teeth. The side of the pin connector facing the handle is provided with a plurality of second teeth. The plurality of second teeth are spaced apart along the length direction of the pin connector. The plurality of first teeth engage with the plurality of second teeth.
[0018] Secondly, this utility model also provides a one-piece buckle box, including a one-piece buckle plate and any of the above-mentioned buckle box type bolt locks, wherein the buckle box type bolt lock is installed on the one-piece buckle plate.
[0019] This utility model provides a snap-on bolt lock and an integrated snap-on box. The snap-on bolt lock includes a lock housing, a bolt connector, a handle, and a torsion spring. The lock housing has a first post and a second post spaced apart. The bolt connector is movably mounted on the lock housing; the handle is rotatably mounted on the first post, and the handle is connected to the bolt connector to drive the bolt connector to move. The handle has a flat position and a raised position. When the handle is in one of the flat or raised positions, the bolt connector extends relative to the lock housing; when it is in the other position, the bolt connector retracts relative to the lock housing. The handle has a third post spaced apart from the first post. The torsion spring includes a first end and a second end opposite to each other. The first end is connected to the second post, and the second end is connected to the third post. During the process of rotating the handle from the flat position to the raised position, the distance between the first end and the second end first decreases and then increases. Thus, during the process of rotating the handle from the flat position to the raised position, the resistance it experiences first increases and then decreases; that is, during the process of rotating the handle from the raised position to the flat position, the resistance also first increases and then decreases. Therefore, when the handle is not in operation, it will remain in the flat or raised position, achieving self-locking. This utility model's snap-fit bolt lock achieves self-locking of the handle by changing the distance between the first and second ends of the torsion spring, resulting in a simpler structure and reduced cost.
[0020] These or other aspects of this invention will become more apparent in the following description of the embodiments. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the buckle-type latch lock provided by this utility model when the handle is in a flat position.
[0023] Figure 2 yes Figure 1 The internal structure diagram of the snap-lock type latch when the handle is in the flat position.
[0024] Figure 3 yes Figure 1 The internal structure diagram of the snap-lock type latch when the handle is in the up position.
[0025] Figure 4 yes Figure 1 A schematic diagram of the handle of a snap-lock type latch lock.
[0026] Figure 5 yes Figure 1 A schematic diagram of the stop component of a snap-lock type.
[0027] Figure 6 yes Figure 1 Another internal structure diagram of the snap-lock type latch when the handle is in the flat position.
[0028] Figure 7 yes Figure 1 Another internal structure diagram of the snap-lock type latch when the handle is in the up position. Detailed Implementation
[0029] To facilitate understanding of the embodiments of this utility model, a more comprehensive description of the embodiments of this utility model will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the embodiments of this invention is for the purpose of describing particular implementations only and is not intended to be limiting of the invention.
[0031] A snap-lock is a type of door lock installed inside a door frame or door panel to house the lock body and bolt. It's typically used for double doors or mother-daughter doors. Taking a double door as an example, the daughter door is usually closed and only opened in specific situations, such as when moving large furniture or appliances, while the mother door opens and closes normally. Generally, the snap-lock body and bolt are installed in different positions to house the bolt and, via a handle, to extend or retract the bolt. There are also snap-lock locks on the market that integrate the snap-lock body and bolt functions; however, these are more complex in structure and have higher production costs.
[0032] To address this issue, this utility model provides a snap-lock type bolt lock. By changing the distance between the first and second ends of the torsion spring, the self-locking of the handle can be achieved, resulting in a simpler structure and reduced cost. The snap-lock type bolt lock provided by this utility model will be described in detail below with reference to specific embodiments and the accompanying drawings.
[0033] Please see Figures 1 to 3 The snap-lock 10 provided by this utility model includes a lock housing 11, a pin connector 13, a handle 15, and a torsion spring 17. The lock housing 11 has a first post 1121 and a second post 1122 spaced apart. The pin connector 13 is movably disposed on the lock housing 11 and can extend or retract relative to the lock housing 11. The pin connector 13 is used to connect with the pin. When the pin connector 13 extends relative to the lock housing 11, it can drive the pin to extend, thereby locking the snap-lock 10. When the pin connector 13 retracts relative to the lock housing 11, it can drive the pin to retract, thereby unlocking the snap-lock 10. The handle 15 is rotatably disposed on the first post 1121. The handle 15 is connected to the pin connector 13 by transmission, thereby driving the pin connector 13 to move. That is, the rotation of the handle 15 can drive the pin connector 13 to extend or retract relative to the lock housing 11.
[0034] The handle 15 has a flat position and a raised position. When the handle 15 is in either the flat or raised position, the latch connector 13 extends relative to the lock housing 11; when in the other position, the latch connector 13 retracts relative to the lock housing 11. In this embodiment, the handle 15 is in the flat position with the latch connector 13 extending relative to the lock housing 11, and the handle 15 is in the raised position with the latch connector 13 extending relative to the lock housing 11. In other embodiments, the handle 15 is in the raised position with the latch connector 13 extending relative to the lock housing 11, and the handle 15 is in the flat position with the latch connector 13 extending relative to the lock housing 11.
[0035] The handle 15 has a third post 1512, which is spaced apart from the first post 1121. Since the handle 15 is rotatably mounted on the first post 1121, when the handle 15 rotates, the third post 1512 rotates around the first post 1121, and the distance between the first post 1121 and the third post 1512 remains constant. The first post 1121 and the second post 1122 are spaced apart; that is, the first post 1121, the second post 1122, and the third post 1512 are spaced apart from each other, the distance between the first post 1121 and the second post 1122 remains constant, while the distance between the second post 1122 and the third post 1512 changes with the rotation of the handle 15. When the handle 15 rotates, the third post 1512 can be positioned between the first post 1121 and the third post 1512.
[0036] The torsion spring 17 includes a first end 1741 and a second end 1761. The first end 1741 is connected to the second column 1122, and the second end 1761 is connected to the third column 1512. During the rotation of the handle 15 from a flat position to a raised position, the distance between the first end 1741 and the second end 1761 first decreases and then increases. The smaller the distance between the first end 1741 and the second end 1761, the greater the deformation of the torsion spring 17. Thus, during the rotation of the handle 15 from a flat position to a raised position, the resistance it experiences first increases and then decreases; that is, during the rotation of the handle 15 from a raised position to a flat position, the resistance also first increases and then decreases. Therefore, when the handle 15 is not operated, it will remain in either a flat or raised position, achieving self-locking of the handle 15. The snap-lock 10 of this invention can achieve self-locking of the handle 15 by changing the distance between the first end 1741 and the second end 1761 of the torsion spring 17. The structure is simpler and the cost of the snap-lock 10 is reduced.
[0037] The first column 1121 has a first axis, the second column 1122 has a second axis, and the third column 1512 has a third axis. The first, second, and third axes are parallel to each other, and during the rotation of the handle 15 from a flat position to a levered position, the first, second, and third axes can be located in the same plane. That is to say, in Figure 3 In the view shown, the first column 1121, the second column 1122, and the third column 1512 are located on the same straight line, with the third column 1512 located between the first column 1121 and the second column 1122. At this time, the distance between the first end 1741 and the second end 1761 is the smallest, that is, the deformation of the torsion spring 17 is the largest, and the resistance experienced by the handle 15 is also the largest.
[0038] The lock housing 11 includes a housing 112 and a liner 114 connected to one side of the housing 112. The liner 114 can be fixed to the child door of a double door to realize the installation of the snap-lock 10. The first post 1121, the second post 1122, and the bolt connector 13 are all disposed in the housing 112. The liner 114 has an opening 1141 for the bolt to extend into, so that the bolt can extend into the housing 112. Here, the bolt refers to the bolt of the lock body installed on the main door.
[0039] The torsion spring 17 includes a spring body 172, a first torsion arm 174, and a second torsion arm 176. The first torsion arm 174 and the second torsion arm 176 extend from the spring body 172 in different directions. When one of the first torsion arm 174 or the second torsion arm 176 is compressed, it generates elastic potential energy, which allows the torsion spring 17 to provide a supporting force to support the handle 15, so that the handle 15 is stably in a flat or raised state. The spring body 172 is suspended inside the lock housing 11, so that the position of the spring body 172 inside the lock housing 11 is not fixed. Specifically, as the handle 15 rotates, the position of the spring body 172 will also change. The first end 1741 is located at one end of the first torsion arm 174 away from the spring body 172, and the second end 1761 is located at one end of the second torsion arm 176 away from the spring body 172. That is, one end of the first torsion arm 174 is connected to the second column 1122, and the other end is connected to the spring body 172; one end of the second torsion arm 176 is connected to the third column 1512, and the other end is connected to the spring body 172.
[0040] In the illustrated embodiment, both the first end 1741 and the second end 1761 are generally spiral-shaped. This spiral shape is fitted onto the second pillar 1122 or the third pillar 1512 to connect the first end 1741 to the second pillar 1122 and the second end 1761 to the third pillar 1512. In other embodiments, the first end 1741 and the second end 1761 can also be hook-shaped. Holes that mate with these hooks can be provided on the second pillar 1122 and the third pillar 1512 to connect the first end 1741 to the second pillar 1122 and the second end 1761 to the third pillar 1512.
[0041] The bolt connector 13 has a guide groove 132 extending along its length. The second post 1122 passes through the guide groove 132, allowing the bolt connector 13 to move along its length to extend or retract relative to the lock housing 11. The second post 1122 can be connected to the first end 1741 of the torsion spring 17 and can also be used to limit the bolt connector 13, integrating two functions. This eliminates the need for additional structures to connect to the first end 1741 of the torsion spring 17, thus making the structure of the snap-lock 10 simpler.
[0042] Please see Figures 3 to 5The handle 15 includes a rotating portion 151 and a free end 153 located away from the rotating portion 151, wherein the free end 153 is used for a lifting operation. The rotating portion 151 is rotatably disposed on the first column 1121, that is, the rotating portion 151 can rotate around the first column 1121. A third column 1512 is disposed on the rotating portion 151. The third column 1512 and the free end 153 are respectively disposed on opposite sides of the first column 1121, such that the handle 15 is supported by the torsion spring 17 in both the flat and raised states, so that the handle 15 can be stably positioned in either the flat or raised state. The handle 15 also includes a connecting portion 155 connecting the rotating portion 151 and the free end 153. In this embodiment, the free end 153 is generally triangular. In other embodiments, the free end 153 may also be spherical, rod-shaped, or ellipsoidal.
[0043] The snap-lock 10 also includes a first stop 1912 and a second stop 1932 disposed inside the lock housing 11. The first stop 1912 and the second stop 1932 can stop the rotation of the handle 15 to limit the rotation angle of the handle 15. The handle 15 includes a first abutment surface 157, a second abutment surface 159, and an arc surface 158 connecting the first abutment surface 157 and the second abutment surface 159. Along the direction from the rotating part 151 to the free end 153, the distance between the first abutment surface 157 and the second abutment surface 159 gradually decreases. The arc surface 158 is disposed between the first post 1121 and the second post 1122, and the arc surface 158 is closer to the first post 1121. When the handle 15 is in a flat position, the first abutment surface 157 abuts against the first stop 1912, wherein the abutting force of the handle 15 is provided by the torsion spring 17. When the handle 15 is in the raised position, the second abutting surface 159 abuts against the second stop portion 1932, wherein the abutting force of the handle 15 is also provided by the torsion spring 17.
[0044] Please see Figures 5 to 7The snap-lock 10 also includes a stop 19 disposed within the lock housing 11. The stop 19 is located on the side of the first post 1121 opposite to the second post 1122, and abuts against the handle 15 when the handle 15 rotates around the first post 1121 to stop the rotation of the handle 15, thereby limiting the rotation angle of the handle 15. The stop 19 has a receiving groove 191 and a clearance groove 193 communicating with the receiving groove 191. The receiving groove 191 and the clearance groove 193 are arranged sequentially along the length direction of the pin connector 13. The free end 153 can be received in the receiving groove 191. Specifically, when the handle 15 is in a flat position, the free end 153 is received in the receiving groove 191. The first stop 1912 is disposed at the bottom of the receiving groove 191, that is, the first abutting surface 157 can abut against the bottom of the receiving groove 191. Specifically, the first abutting surface 157 can abut against the side of the receiving groove 191 near the clearance groove 193. The connecting part 155 can pass through the clearance groove 193. Specifically, when the handle 15 is in the raised state, the connecting part 155 passes through the clearance groove 193. The second stop 1932 is disposed on the side of the clearance groove 193 opposite to the receiving groove 191.
[0045] When the handle 15 is in the flat position, the free end 153 is received in the receiving groove 191, and the second abutment surface 159 is flush with the surface of the stop member 19 facing away from the second column 1122, so as to avoid interference between the handle 15 and the lock tongue of the lock body on the main door, so as to better realize the snap-lock function of the snap-lock 10. When the handle 15 is in the raised position, the connecting part 155 passes through the relief groove 193, and the bolt connector 13 retracts, so as to better realize the bolt function of the snap-lock 10.
[0046] The stop 19 and the liner 114 are spaced apart to form a receiving cavity 1124 for receiving the bolt between the stop 19 and the liner 114. The opening 1141 communicates with the receiving cavity 1124, so that the bolt can be inserted into the receiving cavity 1124 through the opening 1141 to receive the bolt and lock the main door.
[0047] Please see Figure 6 and Figure 7The rotating part 151 has a plurality of first locking teeth 1514 on its outer periphery, and the pin connector 13 has a plurality of second locking teeth 134 on the side facing the handle 15. The plurality of second locking teeth 134 are spaced apart along the length of the pin connector 13, and the plurality of first locking teeth 1514 mesh with the plurality of second locking teeth 134. Through the meshing of the first locking teeth 1514 and the plurality of second locking teeth 134, the drive connection between the handle 15 and the pin connector 13 is realized, and the handle 15 can drive the pin connector 13 to move. The handle 15 and the pin connector 13 are driven by gears and racks, which makes the transmission smooth. In the width direction of the pin connector 13, apart from the diameter of the rotating part 151 and the width of the pin connector 13, almost no additional space is needed to support the movement of the handle 15 and the pin connector 13. This allows the entire snap-on pin lock 10 to be designed to be narrower, resulting in a simpler and more beautiful overall appearance. At the same time, the narrower shape can protect the profile of the door frame (or sub-door) from damage, expanding the application range of the snap-on pin lock 10.
[0048] In summary, during the rotation of the handle 15 of the snap-lock 10 provided by this utility model from the flat position to the raised position, the distance between the first end 1741 and the second end 1761 of the torsion spring 17 first decreases and then increases. Thus, the resistance experienced by the handle 15 during the rotation from the flat position to the raised position first increases and then decreases; that is, the resistance experienced by the handle 15 during the rotation from the raised position to the flat position also first increases and then decreases. Therefore, when the handle 15 is not operated, it will remain in either the flat or raised position, achieving self-locking of the handle 15. The snap-lock 10 of this utility model achieves self-locking of the handle 15 by changing the distance between the first end 1741 and the second end 1761 of the torsion spring 17, resulting in a simpler structure and reduced cost.
[0049] This utility model also provides a one-piece snap-fit box, including a one-piece snap-fit plate and any of the above-mentioned snap-fit box type bolt locks 10, wherein the snap-fit box type bolt lock 10 is installed on the one-piece snap-fit plate. The one-piece snap-fit plate 20 can be installed on a door frame or a sub-door.
[0050] Since the integrated snap box 1 includes a snap box type bolt lock 10, it also has the aforementioned effects of the snap box type bolt lock 10.
[0051] In this utility model, unless otherwise explicitly specified or limited, the term "assembly" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; it can be merely surface contact; or it can be a surface contact connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0052] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this utility model, as well as the features of different embodiments or examples.
[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A snap-lock type bolt lock, characterized in that, include: The lock case has a first column and a second column spaced apart; A latch connector is movably disposed on the lock housing; A handle, rotatably mounted on the first post, is kinetically connected to the latch connector to move the latch connector. The handle has a flat position and a raised position. In one of these positions, the latch connector extends relative to the lock housing; in the other position, it retracts relative to the lock housing. The handle also has a third post spaced apart from the first post. A torsion spring includes a first end and a second end opposite to each other. The first end is connected to the second column, and the second end is connected to the third column. During the process of rotating the handle from the flat state to the raised state, the distance between the first end and the second end first decreases and then increases.
2. The snap-lock type bolt lock according to claim 1, characterized in that, The first column has a first axis, the second column has a second axis, and the third column has a third axis. The first axis, the second axis, and the third axis are parallel to each other, wherein the first axis, the second axis, and the third axis can be located in the same plane during the process of the handle rotating from the flat state to the raised state.
3. The snap-lock type bolt lock according to claim 1, characterized in that, The torsion spring includes a spring body, a first torsion arm, and a second torsion arm. The first torsion arm and the second torsion arm extend from the spring body in different directions. The spring body is suspended inside the lock housing. The first end is located at the end of the first torsion arm opposite to the spring body, and the second end is located at the end of the second torsion arm opposite to the spring body. And / or, the pin connector is provided with a guide groove extending along the length direction of the pin connector, and the second column passes through the guide groove.
4. The snap-lock type bolt lock according to claim 1, characterized in that, The handle includes a rotating part and a free end away from the rotating part. The rotating part is rotatably disposed on the first column, and the third column is disposed on the rotating part. The third column and the free end are respectively disposed on opposite sides of the first column.
5. The snap-lock type bolt lock according to claim 4, characterized in that, The snap-lock further includes a first stop and a second stop disposed inside the lock housing. The handle includes a first abutment surface, a second abutment surface, and an arc surface connecting the first abutment surface and the second abutment surface. The arc surface is disposed between the first column and the second column. When the handle is in the flat position, the first abutment surface abuts against the first stop; when the handle is in the raised position, the second abutment surface abuts against the second stop.
6. The snap-lock type bolt lock according to claim 5, characterized in that, The handle also includes a connecting part connecting the rotating part and the free end. The snap-lock also includes a stop member disposed in the lock housing. The stop member is disposed on the side of the first column opposite to the second column. The stop member has a receiving groove and a clearance groove communicating with the receiving groove. The free end can be received in the receiving groove, and the connecting part can pass through the clearance groove. The first stop member is disposed at the bottom of the receiving groove, and the second stop member is disposed on the side of the clearance groove opposite to the receiving groove.
7. The snap-lock type bolt lock according to claim 6, characterized in that, The lock housing includes a housing and a liner plate connected to one side of the housing. The first column, the second column, and the pin connector are all disposed in the housing. The liner plate has an opening for the bolt to extend into. The stop member and the liner plate are spaced apart to form a receiving cavity for receiving the bolt between the stop member and the liner plate. The opening communicates with the receiving cavity.
8. The snap-lock type bolt lock according to claim 6, characterized in that, When the handle is in the flat position, the free end is received in the receiving groove, and the second abutting surface is flush with the surface of the stop member that is away from the second column; when the handle is in the lifted position, the connecting part passes through the clearance groove.
9. The snap-lock type bolt lock according to claim 1, characterized in that, The handle includes a rotating part and a free end away from the rotating part. The free end is used for lifting operation. The rotating part is rotatably disposed on the first column. The outer periphery of the rotating part is provided with a plurality of first teeth. The side of the pin connector facing the handle is provided with a plurality of second teeth. The plurality of second teeth are spaced apart along the length direction of the pin connector. The plurality of first teeth engage with the plurality of second teeth.
10. A one-piece snap-on box, characterized in that, It includes a single-piece buckle plate and a snap-box type bolt lock as described in any one of claims 1-9, wherein the snap-box type bolt lock is installed on the single-piece buckle plate.