Door lock square rod structure and door lock

Abstract

The utility model relates to the technical field of locks, and discloses a door lock square rod structure and a door lock, the door lock square rod structure comprises a square rod body, one end of the square rod body is provided with a clamping part, and the clamping part is suitable for being clamped with one side of a lock body; the square rod body comprises at least one target side end face; the clamping assembly is arranged on at least one side of the square rod body in the second direction and / or the third direction, and the clamping assembly and the clamping part are arranged in a spaced mode in the first direction; the clamping assembly has a first state that at least part of the clamping assembly is higher than the target side end face and a second state that the clamping assembly is flush with or lower than the target side end face under the action of external force; the clamping assembly is suitable for penetrating through the square rod hole of the lock body in the second state, and the clamping assembly is suitable for being connected with the other side of the lock body in a clamped mode in the first state. According to the door lock square rod structure, the square rod body is prevented from being taken out of the square rod hole or pushed into a door, unlocking through a square rod or the square rod hole is avoided, and reliability and safety of a door lock are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a door lock square rod structure and a door lock. Background Art

[0002] In the existing door lock, when the outer panel is removed or damaged, the lock body is almost completely exposed to the outside, and it is easy to open the lock through the square rod or the square rod hole. The reliability and safety of the door lock need to be improved. Utility Model Content

[0003] In view of this, the utility model provides a door lock square rod structure and a door lock to solve the problem that the existing door lock is easily unlocked through the square rod or the square rod hole when the outer panel is removed or damaged.

[0004] In a first aspect, the utility model provides a door lock square rod structure, comprising:

[0005] A square rod body, one end of which along the first direction is provided with a clamping portion, and the clamping portion is suitable for clamping with one side of the lock body along the first direction;

[0006] The square rod body comprises at least one target side end surface, and the target side end surface is arranged on at least one side of the square rod body along the second direction and / or the third direction;

[0007] The clamping assembly is arranged on at least one side of the square rod body along the second direction and / or the third direction, and the clamping assembly and the clamping portion are arranged at intervals along the first direction; the clamping assembly has a first state in which at least part of the clamping assembly is higher than the target side end face, and a second state in which the clamping assembly is flush with or lower than the target side end face under the action of an external force;

[0008] The clamping assembly is suitable for passing through the square rod hole of the lock body in the second state, and the clamping assembly is suitable for clamping with the other side of the lock body along the first direction in the first state.

[0009] Beneficial effect: the square rod body is inserted into the square rod hole of the lock body from the side of the lock body close to the outdoor direction. As the square rod body is extended, the clamping assembly is gradually forced to deform and switch to the second state and pass through the square rod hole. When the clamping assembly completely passes through the square rod hole, the clamping assembly switches from the second state to the first state, and the clamping assembly is clamped with the side of the lock body close to the indoor direction. At this time, since the clamping part is clamped with the side of the lock body close to the outdoor direction, and the clamping assembly is clamped with the side of the lock body close to the indoor direction, the square rod body is prevented from being taken out of the square rod hole or pushed into the door, thereby preventing the lock from being unlocked by the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0010] In an optional embodiment, a mounting groove is formed on the target side end surface;

[0011] The clamping assembly includes a spring sheet, one end of which in the first direction is fixedly arranged in the installation groove, and the other end is at least partially higher than the target side end surface. The spring sheet is suitable for clamping with the other side of the lock body along the first direction in the first state.

[0012] Beneficial effect: During the assembly process, the spring piece is gradually forced to deform and switch to the second state and pass through the square rod hole as the square rod body extends into the square rod hole along the first direction. When the spring piece completely passes through the square rod hole, the spring piece elastically recovers to the first state and is clamped with the side of the lock body close to the indoor direction. At this time, since the clamping part is clamped with the side of the lock body close to the outdoor direction, and the spring piece is clamped with the side of the lock body close to the indoor direction, the square rod body is prevented from being taken out of the square rod hole or pushed into the door, thereby preventing the lock from being opened through the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0013] In an optional embodiment, the spring piece includes:

[0014] A first connecting portion, built into the mounting groove, the first connecting portion being suitable for being fixedly connected to the square rod body;

[0015] A second connecting portion, arranged at an angle with the first connecting portion, the second connecting portion being adapted to be elastically bent relative to the first connecting portion under the action of an external force;

[0016] The third connection portion is arranged at an end of the second connection portion away from the first connection portion along the first direction, and the third connection portion is at least partially higher than the target side end surface.

[0017] Beneficial effect: in the process of the square rod body extending into the square rod hole along the first direction, the second connecting part is elastically bent under the action of the inner wall of the square rod hole and is built into the installation groove together with the third connecting part; when the spring piece completely passes through the square rod hole, the second connecting part and the first connecting part elastically restore to the initial angle, and the third connecting part is at least partially higher than the target side end face; at this time, the clamping part is clamped with the side of the lock body close to the outdoor direction, and at the same time, the third connecting part is clamped with the side of the lock body close to the indoor direction, thereby preventing the square rod body from being taken out of the square rod hole or pushed into the door.

[0018] In an optional embodiment, a riveting hole is formed on the bottom wall of the mounting groove, and the clamping assembly further includes a rivet, which is coaxially arranged with the riveting hole, and the rivet is suitable for connecting the spring sheet with the square rod body.

[0019] Beneficial effect: The spring piece is riveted and fixed to the square rod body by rivets, thereby ensuring the connection strength between the spring piece and the square rod body, which is beneficial to ensuring the reliability of the fixed connection between the spring piece and the square rod body.

[0020] In an optional embodiment, a plurality of mounting grooves are formed on one or the target side end surface, and at least two of the mounting grooves are spaced apart along the first direction;

[0021] A spring piece is fixedly arranged in each installation groove.

[0022] Beneficial effect: while improving the reliability and safety of the door lock, the square rod structure of the door lock of the utility model can be applicable to lock bodies of different thickness specifications.

[0023] In an optional embodiment, a mounting hole is formed on the target side end surface;

[0024] The clamping assembly includes a clamping pin and a spring, one end of the clamping pin is built into the mounting hole, and the other end is at least partially higher than the target side end surface, the spring is pre-compressed in the mounting hole and abuts against the clamping pin, and the spring is suitable for maintaining the first state of the clamping pin;

[0025] The latch is adapted to be latched with the other side of the lock body along the first direction in the first state.

[0026] Beneficial effect: During the assembly process, as the square rod body extends into the square rod hole along the first direction, when the bayonet pin is about to enter the square rod hole, the bayonet pin compresses the spring under the action of external force, and the bayonet pin switches to the second state and passes through the square rod hole. When the bayonet pin completely passes through the square rod hole, the bayonet pin returns to the first state under the action of the elastic restoring force of the spring and engages with the side of the lock body close to the indoor direction. At this time, since the engaging portion is engaged with the side of the lock body close to the outdoor direction, and the bayonet pin is engaged with the side of the lock body close to the indoor direction, the square rod body is prevented from being taken out of the square rod hole or pushed into the door, thereby preventing the lock from being unlocked through the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0027] In an optional embodiment, a first boss portion is formed at one axial end of the mounting hole, and the first boss portion is extended radially from the inner circumferential wall of the mounting hole toward the center axis; a second boss portion is provided at one axial end of the bayonet, and the second boss portion is slidably provided in the mounting hole, and the second boss portion is suitable for abutting against the first boss portion to limit the bayonet.

[0028] Beneficial effect: By setting the first boss portion, during the assembly and operation process, the second boss portion of the first boss portion of the latch is abutted against each other to limit the latch pin, thereby preventing the latch pin from detaching from the mounting hole, thereby ensuring that the latch pin is stably and reliably latched with the side of the lock body close to the indoor direction.

[0029] In an optional embodiment, the clamping assembly further includes a fixing block, which is fixedly disposed at the other axial end of the mounting hole, and the fixing block is suitable for pre-compressing the spring in the mounting hole.

[0030] Beneficial effect: By setting a fixing block, the spring is pre-compressed in the mounting hole, thereby realizing the installation and fixation of the bayonet and the spring in the mounting hole, and ensuring that the spring always elastically presses against the bayonet.

[0031] In an optional embodiment, a plurality of mounting holes are formed on one or the target side end surface, at least two of which are spaced apart along the first direction; and a latch and a spring are disposed in each mounting hole.

[0032] Beneficial effect: while improving the reliability and safety of the door lock, the square rod structure of the door lock of the utility model can be applicable to lock bodies of different thickness specifications.

[0033] In a second aspect, the utility model further provides a door lock, comprising: a door lock body, and the door lock square rod structure as described above.

[0034] Beneficial effects: The door lock of the second aspect includes the door lock square rod structure of the first aspect, and therefore, the door lock of the second aspect includes all the beneficial effects of the door lock square rod structure of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 This is a schematic diagram of the assembly of a door lock square bar structure and a lock body according to an embodiment of the utility model;

[0037] Figure 2 A three-dimensional diagram of a door lock square rod structure according to an embodiment of the utility model;

[0038] Figure 3 An exploded view of a door lock square bar structure according to an embodiment of the utility model;

[0039] Figure 4 This is a front view of a door lock square rod structure according to an embodiment of the utility model;

[0040] Figure 5 for Figure 4 Sectional view of section AA;

[0041] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0042] Figure 7 This is a working principle diagram of a door lock square rod structure according to an embodiment of the utility model;

[0043] Figure 8A cross-sectional view of another door lock square rod structure according to an embodiment of the utility model;

[0044] Fig. 9 for Figure 8 A partial enlarged schematic diagram of point C in the middle;

[0045] Fig.10 This is a working principle diagram of another door lock square rod structure according to an embodiment of the utility model.

[0046] Description of reference numerals:

[0047] 10. square rod body; 11. clamping portion; 12. target side end surface; 121. mounting groove; 122. riveting hole; 123. mounting hole; 124. first boss portion;

[0048] 20. Card connection assembly;

[0049] 211, spring piece; 2111, first connecting portion; 2112, second connecting portion; 2113, third connecting portion; 212, rivet;

[0050] 221, latch; 2211, second boss portion; 222, spring; 223, fixing block;

[0051] 30. Lock body; 31. Square rod hole. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0053] Combine the following Figures 1 to 10 , describing an embodiment of the utility model.

[0054] According to an embodiment of the utility model, on the one hand, a door lock square bar structure is provided, comprising:

[0055] Square rod body 10, see Figure 1 As shown, a clamping portion 11 is provided at one end along the first direction, and the clamping portion 11 is suitable for clamping with one side of the lock body 30 along the first direction;

[0056] The square rod body 10 includes at least one target side end surface 12, and the target side end surface 12 is arranged on at least one side of the square rod body 10 along the second direction and / or the third direction;

[0057] Snap-in assembly 20, see Figure 2 As shown, the clamping assembly 20 is arranged on at least one side of the square rod body 10 along the second direction and / or the third direction, and the clamping assembly 20 and the clamping portion 11 are spaced apart along the first direction; the clamping assembly 20 has a first state in which at least part of the clamping assembly 20 is higher than the target side end surface 12, and a second state in which the clamping assembly 20 is flush with or lower than the target side end surface 12 under the action of an external force;

[0058] The clamping assembly 20 is suitable for passing through the square rod hole 31 of the lock body 30 in the second state, and the clamping assembly 20 is suitable for clamping with the other side of the lock body 30 along the first direction in the first state.

[0059] It should be noted that the square rod body 10 is installed on the lock body 30 according to the opening direction of the door. The square rod body 10 is inserted into the square rod hole 31 of the lock body 30 from the side of the lock body 30 close to the outdoor direction. As the square rod body 10 is extended, the clamping assembly 20 is gradually forced to deform and switch to the second state and pass through the square rod hole 31. When the clamping assembly 20 completely passes through the square rod hole 31, the clamping assembly 20 switches from the second state to the first state, and the clamping assembly 20 is clamped with the side of the lock body 30 close to the indoor direction. At this time, since the clamping portion 11 is clamped with the side of the lock body 30 close to the outdoor direction, and the clamping assembly 20 is clamped with the side of the lock body 30 close to the indoor direction, the square rod body 10 is prevented from being taken out of the square rod hole 31 or pushed into the door, thereby preventing the door lock from being unlocked by the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0060] Furthermore, the clamping portion 11 may be a semicircular head structure, and the clamping portion 11 may be integrally formed with the square rod body 10 .

[0061] In some embodiments, see Figure 3 As shown, a mounting groove 121 is formed on the target side end surface 12;

[0062] See also Figure 4 As shown, the snap-on assembly 20 includes a spring piece 211, which has a certain elasticity. One end of the spring piece 211 in the first direction is fixedly arranged in the mounting groove 121, and the other end is at least partially higher than the target side end surface 12. The spring piece 211 is suitable for snapping with the other side of the lock body 30 along the first direction in the first state.

[0063] Furthermore, the spring piece 211 and the square rod body 10 can be connected by welding or fixed by rivets.

[0064] During the assembly process, the spring piece 211 is gradually forced to deform and switch to the second state and pass through the square rod hole 31 as the square rod body 10 extends into the square rod hole 31 along the first direction. When the spring piece 211 completely passes through the square rod hole 31, the spring piece 211 elastically recovers to the first state and is engaged with the side of the lock body 30 close to the indoor direction. At this time, since the engaging portion 11 is engaged with the side of the lock body 30 close to the outdoor direction, and the spring piece 211 is engaged with the side of the lock body 30 close to the indoor direction, the square rod body 10 is prevented from being taken out of the square rod hole 31 or pushed into the door, thereby preventing the door from being unlocked by the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0065] In some embodiments, see Figure 6 As shown, the spring piece 211 includes:

[0066] The first connecting portion 2111 is built into the mounting groove 121 and is suitable for being fixedly connected to the square rod body 10;

[0067] The second connection portion 2112 is arranged at an angle with the first connection portion 2111, and the second connection portion 2112 is suitable for elastically bending relative to the first connection portion 2111 under the action of an external force;

[0068] The third connection portion 2113 is disposed at one end of the second connection portion 2112 away from the first connection portion 2111 along the first direction. The third connection portion 2113 is at least partially higher than the target side end surface 12 .

[0069] For further information, see Figure 6 As shown, the second connection portion 2112 is arranged at an obtuse angle to the first connection portion 2111 .

[0070] When the square rod body 10 extends into the square rod hole 31 along the first direction, the second connection portion 2112 is elastically bent under the action of the inner wall of the square rod hole 31 and is built into the installation groove 121 together with the third connection portion 2113. When the spring piece 211 completely passes through the square rod hole 31, the second connection portion 2112 and the first connection portion 2111 are elastically restored to the initial angle, and the third connection portion 2113 is at least partially higher than the target side end face 12. At this time, the clamping portion 11 is clamped with the side of the lock body 30 close to the outdoor direction, and the third connection portion 2113 is clamped with the side of the lock body 30 close to the indoor direction, thereby preventing the square rod body 10 from being taken out of the square rod hole 31 or pushed into the door.

[0071] In some embodiments, see Figure 3 As shown, the bottom wall of the mounting groove 121 is provided with a rivet hole 122 , and the clamping assembly 20 further includes a rivet 212 , which is coaxially arranged with the rivet hole 122 , and is suitable for connecting the spring piece 211 with the square rod body 10 .

[0072] For further information, see Figure 6 As shown, the rivet 212 rivets and fixes the first connection portion 2111 of the spring sheet 211 to the square rod body 10 .

[0073] In this embodiment, the spring piece 211 is riveted and fixed to the square rod body 10 by rivets 212, thereby ensuring the connection strength between the spring piece 211 and the square rod body 10, which is conducive to ensuring the reliability of the fixed connection between the spring piece 211 and the square rod body 10.

[0074] In some embodiments, see Figure 4 As shown, a plurality of mounting grooves 121 are formed on one or the target side end surface 12, and at least two of the mounting grooves 121 are spaced apart along the first direction;

[0075] A spring piece 211 is fixedly disposed in each installation slot 121 .

[0076] In this embodiment, a plurality of mounting grooves 121 are provided on the square rod body 10, and at least two of the mounting grooves 121 are spaced apart along the first direction, and a spring piece 211 is fixedly provided in each mounting groove 121, thereby improving the reliability and safety of the door lock and enabling the square rod structure of the door lock of the utility model to be applicable to lock bodies of different thickness specifications.

[0077] In some embodiments, please combine Figure 8 and Fig. 9 As shown, a mounting hole 123 is formed on the target side end surface 12;

[0078] The clamping assembly 20 includes a clamping pin 221 and a spring 222. One end of the clamping pin 221 is built into the mounting hole 123, and the other end is at least partially higher than the target side end surface 12. The spring 222 is pre-compressed in the mounting hole 123 and abuts against the clamping pin 221. The spring 222 is suitable for maintaining the first state of the clamping pin 221.

[0079] The latch 221 is adapted to be latched with the other side of the lock body 30 along the first direction in the first state.

[0080] During the assembly process, as the square rod body 10 extends into the square rod hole 31 along the first direction, when the bayonet 221 is about to enter the square rod hole 31, the bayonet 221 compresses the spring 222 under the action of external force, and the bayonet 221 switches to the second state and passes through the square rod hole 31. When the bayonet 221 completely passes through the square rod hole 31, the bayonet 221 is restored to the first state under the action of the elastic restoring force of the spring 222 and is engaged with the side of the lock body 30 close to the indoor direction. At this time, since the engaging portion 11 is engaged with the side of the lock body 30 close to the outdoor direction, and the bayonet 221 is engaged with the side of the lock body 30 close to the indoor direction, the square rod body 10 is prevented from being taken out of the square rod hole 31 or pushed into the door, thereby preventing the door from being unlocked by the square rod or the square rod hole, thereby improving the reliability and safety of the door lock.

[0081] In some embodiments, see Fig. 9 As shown, a first boss portion 124 is formed at one axial end of the mounting hole 123, and the first boss portion 124 is formed by the inner circumferential wall of the mounting hole 123 extending radially toward the center axis; a second boss portion 2211 is provided at one axial end of the bayonet 221, and the second boss portion 2211 is slidably provided in the mounting hole 123, and the second boss portion 2211 is suitable for abutting against the first boss portion 124 to limit the bayonet 221.

[0082] Furthermore, the first boss portion 124 and the square rod body 10 are an integrally formed structure.

[0083] In this embodiment, by providing the first boss portion 124, during the assembly and operation process, the first boss portion 124 abuts against the second boss portion 2211 of the latch 221 to limit the position of the latch 221, thereby preventing the latch 221 from being separated from the mounting hole 123, thereby ensuring that the latch 221 is stably and reliably latched with the side of the lock body 30 close to the indoor direction.

[0084] In some embodiments, see Fig. 9 As shown, the clamping assembly 20 further includes a fixing block 223 , which is fixedly disposed at the other axial end of the mounting hole 123 , and the fixing block 223 is suitable for pre-compressing the spring 222 in the mounting hole 123 .

[0085] Furthermore, the fixing block 223 and the square rod body 10 may be fixed by welding or connected by threads.

[0086] In this embodiment, the fixing block 223 is provided to pre-compress the spring 222 in the mounting hole 123 , thereby achieving the installation and fixation of the bayonet 221 and the spring 222 in the mounting hole 123 and ensuring that the spring 222 always elastically presses against the bayonet 221 .

[0087] In some embodiments, please combine Figure 8 and Fig.10 As shown, a plurality of mounting holes 123 are formed on one or the target side end surface 12 , at least two of which are spaced apart along the first direction; a latch 221 and a spring 222 are disposed in each mounting hole 123 .

[0088] In this embodiment, a plurality of mounting holes 123 are provided on the square rod body 10, and at least two of the mounting holes 123 are spaced apart along the first direction, and a latch 221 and a spring 222 are provided in each mounting hole 123, thereby improving the reliability and safety of the door lock and enabling the square rod structure of the door lock of the utility model to be applicable to lock bodies of different thickness specifications.

[0089] According to an embodiment of the present utility model, on the other hand, a door lock is provided, comprising: a door lock body, and the door lock square rod structure as described above.

[0090] The door lock in this solution includes the above-mentioned door lock square rod structure. Therefore, the door lock in this solution includes all the beneficial effects of the above-mentioned door lock square rod structure.

[0091] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A door lock square rod structure, characterized in that: include: A square rod body (10), one end of which along a first direction is provided with a clamping portion (11), the clamping portion (11) being suitable for clamping with one side of a lock body (30) along the first direction; The square rod body (10) comprises at least one target side end surface (12), and the target side end surface (12) is arranged on at least one side of the square rod body (10) along the second direction and / or the third direction; A clamping assembly (20) is arranged on at least one side of the square rod body (10) along the second direction and / or the third direction, and the clamping assembly (20) and the clamping portion (11) are arranged at intervals along the first direction; the clamping assembly (20) has a first state in which at least part of the clamping assembly is higher than the target side end surface (12), and a second state in which the clamping assembly (20) is flush with or lower than the target side end surface (12) under the action of an external force; The clamping assembly (20) is suitable for passing through the square rod hole (31) of the lock body (30) in the second state, and the clamping assembly (20) is suitable for clamping with the other side of the lock body (30) along the first direction in the first state.

2. The door lock square rod structure according to claim 1, characterized in that: A mounting groove (121) is formed on the target side end surface (12); The clamping assembly (20) comprises a spring sheet (211), one end of the spring sheet (211) in the first direction is fixedly arranged in the mounting groove (121), and the other end is at least partially higher than the target side end surface (12), and the spring sheet (211) is suitable for clamping with the other side of the lock body (30) along the first direction in the first state.

3. The door lock square rod structure according to claim 2, characterized in that: The spring piece (211) comprises: A first connecting portion (2111) is built into the installation groove (121), and the first connecting portion (2111) is suitable for being fixedly connected to the square rod body (10); A second connecting portion (2112) is arranged at an angle with the first connecting portion (2111), and the second connecting portion (2112) is suitable for elastically bending relative to the first connecting portion (2111) under the action of an external force; The third connection portion (2113) is arranged at one end of the second connection portion (2112) away from the first connection portion (2111) along the first direction, and the third connection portion (2113) is at least partially higher than the target side end surface (12).

4. The door lock square rod structure according to claim 2, characterized in that: The bottom wall of the installation groove (121) is provided with a rivet hole (122), and the clamping assembly (20) further comprises a rivet (212), wherein the rivet (212) is coaxially arranged with the rivet hole (122), and the rivet (212) is suitable for connecting the spring sheet (211) with the square rod body (10).

5. The door lock square rod structure according to any one of claims 2 to 4, characterized in that: A plurality of the installation grooves (121) are formed on one or the target side end surface (12), and at least two of the installation grooves (121) are arranged at intervals along a first direction; The spring piece (211) is fixedly arranged in each of the installation grooves (121).

6. The door lock square rod structure according to claim 1, characterized in that: A mounting hole (123) is formed on the target side end surface (12); The clamping assembly (20) comprises a clamping pin (221) and a spring (222), one end of the clamping pin (221) is built into the mounting hole (123), and the other end is at least partially higher than the target side end surface (12), the spring (222) is pre-compressed in the mounting hole (123) and abuts against the clamping pin (221), and the spring (222) is suitable for maintaining the first state of the clamping pin (221); The latch (221) is suitable for being latched with the other side of the lock body (30) along the first direction in the first state.

7. The door lock square rod structure according to claim 6, characterized in that: A first boss portion (124) is formed at one axial end of the mounting hole (123), and the first boss portion (124) is formed by the inner peripheral wall of the mounting hole (123) extending radially toward the central axis; a second boss portion (2211) is provided at one axial end of the bayonet (221), and the second boss portion (2211) is slidably disposed in the mounting hole (123), and the second boss portion (2211) is suitable for abutting against the first boss portion (124) to limit the bayonet (221).

8. The door lock square rod structure according to claim 6, characterized in that: The clamping assembly (20) further comprises a fixing block (223), wherein the fixing block (223) is fixedly arranged at the other axial end of the mounting hole (123), and the fixing block (223) is suitable for pre-compressing the spring (222) in the mounting hole (123).

9. The door lock square rod structure according to any one of claims 6 to 8, characterized in that: A plurality of mounting holes (123) are formed on one or the target side end surface (12), at least two of the mounting holes (123) are arranged at intervals along the first direction; and each mounting hole (123) is provided with the latch (221) and the spring (222).

10. A door lock, characterized in that: include: A door lock body, and a door lock square rod structure as described in any one of claims 1 to 9 above.

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