Seat belt buckle

Abstract

The present invention relates to the technical field of electric tools, and discloses a safety belt buckle. The safety belt buckle comprises a housing, an interlocking assembly and two tensioning assemblies. The housing is provided with a mounting hole, and two through holes are provided on the hole wall of the mounting hole at intervals along the X-axis direction. The interlocking assembly comprises two locks which are resettably arranged in the mounting hole along the Z-axis direction, and a through hole protrudes from the upper end of each lock. Each lock has a locking position and an unlocking position, and when one lock moves toward the locking position, it drives the other lock to reset to the unlocking position. The two tensioning members are resettably arranged in the mounting hole and are respectively located below the two locks. The lock hook of each safety belt can be sleeved on the outer periphery of a lock and a tensioning member; when the lock is in the locking position, the lower end of the lock is inserted into the tensioning member, and the outer periphery of the tensioning member presses the inner circle of the lock hook. When the lock is in the unlocking position, the tensioning member releases the lock hook. The safety belt buckle can effectively ensure the personal safety of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of electric tools, and in particular to a safety belt buckle. Background Art

[0002] During the daily operation and maintenance of overhead power lines and power equipment, workers are usually required to perform aerial work, which cannot be separated from the protection of safety belts. During operation, it is often necessary to use the main safety belt and the auxiliary safety belt interchangeably, such as changing the safety belt when changing positions. However, during the operation, the busy work can easily cause the workers to be careless, such as unfastening one safety belt but not fastening the other safety belt when transferring positions, or forgetting to fasten the safety belt when encountering obstacles or corners, etc., which poses a major safety problem.

[0003] Therefore, there is an urgent need for a seat belt buckle to solve the above problems. Summary of the invention

[0004] Based on the above, an object of the present invention is to provide a seat belt buckle, which can automatically lock one seat belt while unlocking another seat belt, thereby ensuring the personal safety of the operator.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A seat belt buckle, comprising:

[0007] A housing, wherein a mounting hole is provided on the housing, and two through holes are provided on the wall of the mounting hole at intervals along the X-axis direction;

[0008] An interlocking assembly, wherein the interlocking assembly comprises two locking members which are resettably arranged in the mounting hole along the Z-axis direction, wherein the upper end of each locking member protrudes one of the through holes, and each locking member has a locking position and an unlocking position, wherein when one of the locking members moves toward the locking position, the other locking member is driven to reset to the unlocking position;

[0009] Two tensioning members, the two tensioning members are respectively resettable in the mounting holes and respectively located below the two locking members, and the lock hook of each safety belt can be sleeved on the outer periphery of one of the locking members and one of the tensioning members;

[0010] When the lock element is located at the locking position, the lower end of the lock element is inserted into the tensioning element, and the outer periphery of the tensioning element presses the inner circle of the lock hook. When the lock element is located at the unlocking position, the tensioning element releases the lock hook.

[0011] As a preferred solution of the seat belt buckle, it also includes:

[0012] A partition is arranged in the mounting hole, and two limiting holes are formed on the partition. The two limiting holes are opposite to the two through holes one by one. The two ends of each locking element pass through one through hole and one limiting hole respectively, and are elastically connected to the partition. Under the elastic action, the locking element can be reset to the unlocked position.

[0013] As a preferred solution of the safety belt buckle, the interlocking assembly further includes a first lock plate and a second lock plate, the first lock plate and the second lock plate are respectively rotatably arranged on the housing, the two lock elements are both located between the first lock plate and the second lock plate, and the two lock elements include a first lock element and a second lock element;

[0014] When the first lock element moves toward the locking position, the first lock plate and the second lock plate are pushed away from each other. When the first lock element is in the locking position, the first lock plate clamps the first lock element. When the second lock element moves toward the locking position, the first lock plate pushes the first lock plate to release the first lock element. The first lock element is reset to the unlocking position. When the second lock element is in the locking position, the second lock plate clamps the second lock element.

[0015] As a preferred solution of the seat belt buckle, the first locking member is provided with a first locking step on a side facing the first lock plate, and a first unlocking lever on a side facing the second lock plate; the second locking member is provided with a second locking step on a side facing the second lock plate, and a second unlocking lever on a side facing the first lock plate;

[0016] When the first lock piece is in the locked position, the lower end of the first lock plate abuts against the first locking step. When the second lock piece moves toward the locked position, the second unlocking rod pushes the first lock plate away from the first locking step. The first lock piece is reset to the unlocked position, and the second lock plate is reset and rotated toward the first lock plate. When the second lock piece is in the locked position, the lower end of the second lock plate abuts against the second locking step.

[0017] As a preferred solution for the seat belt buckle, the first lock plate includes a first connecting portion and a first working portion, the second lock plate includes a second connecting portion and a second working portion, two connecting holes are provided on the shell along the Y-axis direction, and the length direction of the connecting holes extends along the X-axis direction, the first connecting portion is resettably rotatably connected to the outside of the shell, the first working portion passes through one of the connecting holes and extends obliquely toward the lock element, the second connecting portion is resettably rotatably connected to the outside of the shell, the second working portion passes through another of the connecting holes and extends obliquely toward the lock element.

[0018] As a preferred solution for the seat belt buckle, each of the tensioning members includes two tensioning blocks, the two tensioning blocks are spaced apart along the Y-axis direction, and each of the tensioning blocks is resettably connected to the hole wall of the mounting hole. When the locking member moves toward the locking position, the lower end of the locking member is inserted between the two tensioning blocks of one of the tensioning members, and drives the two tensioning blocks away from each other to tighten the locking hook. When the locking member resets toward the unlocking position, the two tensioning blocks approach each other to release the locking hook.

[0019] As a preferred solution for the safety belt buckle, each of the tensioning blocks is in a quarter-cylindrical structure, and the arc-shaped surface of each of the tensioning blocks can fit and be pressed against the inner circle of the lock hook.

[0020] As a preferred solution of the safety belt buckle, a baffle is provided in the mounting hole, and the baffle is located between the two locking elements.

[0021] As a preferred solution for the seat belt buckle, a plurality of first connecting grooves are provided on the hole wall of the mounting hole, one end of a tensioning block is inserted into one of the connecting grooves and elastically connected to the groove wall of the connecting groove, and a plurality of second connecting grooves are provided on both sides of the baffle, the other end of each tensioning block is inserted into one of the second connecting grooves and elastically connected to the groove wall of the second connecting groove.

[0022] As a preferred solution of the seat belt buckle, four limit blocks are arranged on the shell at intervals along the X-axis direction, each of the through holes is located between two of the limit blocks, and the upper end of the locking element is lower than the limit blocks.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a seat belt buckle, which includes a shell, an interlocking component and two tensioning members. When one locking member is pressed to a locking position, the locking member drives the corresponding tensioning member to press the inner ring of the seat belt hook, and the seat belt cannot move freely, thereby achieving the locking of the seat belt; when another locking member is pressed to a locking position, the locking member drives the corresponding tensioning member to lock the other seat belt hook and drives the locked locking member to reset to an unlocking position, thereby achieving the locking of one seat belt and unlocking the other seat belt at the same time, which is convenient for operators to transfer positions and will not lose protection. The seat belt buckle automatically locks the other seat belt while unlocking one seat belt, which is easy to operate and can ensure that there is always one seat belt in a locked state, thereby effectively ensuring the personal safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 is a schematic diagram of the assembly structure of a safety belt buckle provided by an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a housing provided by an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of a partial structure of a seat belt buckle at a first viewing angle provided by an embodiment of the present invention Figure 1 ;

[0029] Figure 4 Schematic diagram of a portion of the structure of a seat belt buckle at a second viewing angle provided by an embodiment of the present invention Figure 2 ;

[0030] Figure 5 Schematic diagram of the structure of the safety belt buckle provided by the embodiment of the present invention Figure 3 (housing not shown);

[0031] Figure 6 Schematic diagram of the structure of the safety belt buckle provided by the embodiment of the present invention Figure 4 (The first and second lock plates are not shown).

[0032] In the figure:

[0033] 1. Shell;

[0034] 2. Interlocking assembly; 21. First locking member; 211. First locking step; 212. First unlocking lever; 213. First pressing portion; 214. First body; 215. First locking body; 216. First elastic member; 22. Second locking member; 221. Second locking step; 222. Second unlocking lever; 223. Second pressing portion; 224. Second body; 225. Second locking body; 226. Second elastic member; 23. First locking plate; 231. First connecting portion; 232. First working portion; 24. Second locking plate; 241. Second connecting portion; 242. Second working portion;

[0035] 3. Tensioner; 31. Tensioner block;

[0036] 4. Baffle; 5. Limit block; 6. Partition;

[0037] 10. Mounting hole; 20. Through hole; 30. Connecting hole; 40. Limiting hole; 50. Guide groove. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] Embodiment 1

[0043] like Figures 1 to 6As shown, the present embodiment provides a seat belt buckle, which includes a shell 1, an interlocking component 2 and two tensioning components. The shell 1 is provided with a mounting hole 10, and two through holes 20 are provided on the hole wall of the mounting hole 10 at intervals along the X-axis direction. The interlocking component 2 includes two locking elements resettably arranged in the mounting hole 10 along the Z-axis direction, and a through hole 20 protrudes from the upper end of each locking element. Each locking element has a locking position and an unlocking position. When one of the locking elements moves toward the locking position, it drives the other locking element to reset to the unlocking position. The two tensioning elements 3 are resettably arranged in the mounting hole 10 and are respectively located below the two locking elements. The lock hook of each seat belt can be sleeved on the outer periphery of a lock element and a tensioning element 3; when the lock element is in the locking position, the lower end of the lock element is inserted into the tensioning element 3, and the outer periphery of the tensioning element 3 presses the inner circle of the lock hook. When the lock element is in the unlocking position, the tensioning element 3 releases the lock hook.

[0044] When one locking element is pressed to the locking position, the locking element drives the corresponding tensioning element 3 to press the inner circle of the safety belt hook, and the safety belt cannot move freely, thus achieving the locking of the safety belt; when another locking element is pressed to the locking position, the locking element drives the corresponding tensioning element 3 to lock the other safety belt hook and drives the locked locking element to reset to the unlocking position, thus achieving the locking of one safety belt while unlocking the other safety belt, which is convenient for operators to transfer positions without losing protection. The safety belt buckle automatically locks the other safety belt while unlocking one safety belt, which is easy to operate and can ensure that one safety belt is always in a locked state, thereby effectively ensuring the personal safety of operators.

[0045] The safety belt buckle provided in this embodiment is applicable to various fields. For example, during the operation and maintenance of power overhead lines and power equipment, workers perform operations at high altitudes and are protected by a main safety belt and a secondary safety belt. The lock hook of the main safety belt is sleeved on the outer periphery of a locking member and a tensioner 3, and the lock hook of the secondary safety belt is sleeved on the outer periphery of another locking member and another tensioner 3. During operation, the safety belt buckle locks the lock hook of the main safety belt; when it is necessary to transfer positions, the lock member locks the lock hook of the secondary safety belt, while the lock hook of the main safety belt is unlocked; when the transfer is completed, the lock hook of the main safety belt is buckled again, and the lock member locks the lock hook of the main safety belt again, while the lock hook of the secondary safety belt is unlocked, which effectively ensures that workers at high altitudes will not lose the protection of the main safety belt and the secondary safety belt at the same time, thereby ensuring the personal safety of workers at high altitudes.

[0046] Preferably, four limit blocks 5 are arranged at intervals on the housing 1 along the X-axis direction, each through hole 20 is located between two limit blocks 5, and the upper end of the lock is lower than the limit block 5. Every two limit blocks 5 provide a limit function for the lock hook of the safety belt to prevent the lock hook from slipping off the safety belt buckle. More preferably, a side of each limit block 5 facing the lock is set as an inclined surface, which is inclined from top to bottom toward the lock, and the inclined surface provides a guiding function for the lock hook, so that the operator can put the lock hook between the two limit blocks 5.

[0047] Preferably, a baffle 4 is provided in the mounting hole 10, and the baffle 4 is located between the two locks. The baffle 4 has a separation effect on the two safety belt lock hooks, preventing the lock hooks from sliding along the X-axis direction to the other lock and tensioner 3 after being sleeved on the outer periphery of one lock and tensioner 3, ensuring that the two safety belts do not interfere with each other, thereby improving safety.

[0048] Specifically, Figure 5 and Figure 6 As shown, the interlocking assembly 2 also includes a first lock plate 23 and a second lock plate 24, and the first lock plate 23 and the second lock plate 24 are respectively resettable and rotatably arranged on the housing 1, and the two lock members are both located between the first lock plate 23 and the second lock plate 24, and the two lock members include a first lock member 21 and a second lock member 22; when the first lock member 21 moves toward the locking position, the first lock plate 23 pushes the second lock plate 24 away from each other, when the first lock member 21 is in the locking position, the first lock plate 23 clamps the first lock member 21, and when the second lock member 22 moves toward the locking position, the first lock plate 23 pushes the first lock member 21 to release the first lock member 21, and the first lock member 21 is reset to the unlocking position, and when the second lock member 22 is in the locking position, the second lock plate 24 clamps the second lock member 22. Since the first lock plate 23 and the second lock plate 24 are both resettable, when the first lock member 21 pushes the first lock plate 23 and the second lock plate 24 away from each other, the first lock plate 23 and the second lock plate 24 tend to approach each other until the first lock member 21 moves to the locking position, the first lock plate 23 clamps the first lock member 21, and the first lock member 21 is locked, that is, one tension member 3 is tightened and the lock hook is locked; when the second lock member 22 moves, it pushes the first lock plate 23 away from the first lock member 21, until the first lock plate 23 is separated from the first lock member 21, the first lock member 21 is reset and moved upward to unlock the lock hook, and since the first lock member 21 moves upward, the second lock plate 24 is reset and moved inward until the second lock member 22 is clamped, and the second lock member 22 is locked, that is, the other lock hook is locked. The two lock members act in this cycle to achieve mutually exclusive locking and unlocking of the two lock hooks.

[0049] In this embodiment, a first locking step 211 is provided on the side of the first lock member 21 facing the first lock plate 23, a first unlocking rod 212 is provided on the side facing the second lock plate 24, a second locking step 221 is provided on the side of the second lock member 22 facing the second lock plate 24, and a second unlocking rod 222 is provided on the side facing the first lock plate 23; when the first lock member 21 is in the locked position, the lower end of the first lock plate 23 abuts against the first locking step 211, and when the second lock member 22 moves toward the locked position, the second unlocking rod 222 pushes the first lock plate 23 away from the first locking step 211, the first lock member 21 is reset to the unlocked position, and the second lock plate 24 is reset and rotated toward the first lock plate 23, and when the second lock member 22 is in the locked position, the lower end of the second lock plate 24 abuts against the second locking step 221. When the lower end of the first lock plate 23 abuts against the first locking step 211, the first lock 21 is restricted from moving upward, that is, the lower end of the first lock 21 is inserted into the tensioning member 3 so that the tensioning member 3 tightens the lock hook; when the second lock 22 moves downward, the second unlocking rod 222 thereon pushes the first lock plate 23 to rotate in a direction away from the first locking step 211 until the first lock plate 23 is completely separated from the first locking step 211, and the first lock 21 is unlocked; and after the first lock 21 moves upward, the first unlocking rod 212 releases the second lock plate 24, and the second lock plate 24 can be reset and rotated inward, so that the second lock plate 24 can abut against the second locking step 221, thereby locking the second lock 22. The above structure is simple, easy to operate, low in cost, and realizes automatic mutual exclusion of the two locks.

[0050] Preferably, the first locking step 211 is located below the first unlocking rod 212, and the second locking step 221 is located below the second unlocking rod 222, so that the first lock plate 23 can be smoothly engaged with the first locking step 211, and the first unlocking rod 212 and the second lock plate 24 will not interfere with each other, and the second lock plate 24 can be smoothly engaged with the second locking step 221, and the second unlocking rod 222 and the first lock plate 23 will not interfere with each other. More preferably, the length of the first unlocking rod 212 is greater than the length of the first locking step 211 in the Y-axis direction, and the length of the second unlocking rod 222 is greater than the length of the second locking step 221 in the Y-axis direction, so that the first unlocking rod 212 can smoothly push the second lock plate 24 away from the second locking step 221, and the second unlocking rod 222 can smoothly push the first lock plate 23 away from the first locking step 211.

[0051] Preferably, the step surface of the first locking step 211 is inclined downward toward the direction of the first locking element 21, and the step surface of the second locking step 221 is inclined downward toward the direction of the second locking element 22, which can effectively prevent the first lock plate 23 from sliding outward along the step surface of the first locking step 211, and prevent the second lock plate 24 from sliding outward along the step surface of the second locking step 221, thereby increasing the locking force and ensuring the reliability of the use of the seat belt buckle.

[0052] For example, Figure 1 and Figure 5 As shown, the first lock plate 23 includes a first connecting portion 231 and a first working portion 232, the second lock plate 24 includes a second connecting portion 241 and a second working portion 242, two connecting holes 30 are spaced apart along the Y-axis direction on the shell 1, and the length direction of the connecting hole 30 extends along the X-axis direction, the first connecting portion 231 is repositionably rotatably connected to the outer side of the shell 1, preferably connected to one side of the four limit blocks 5, the first working portion 232 passes through one connecting hole 30 and extends obliquely toward the lock, the second connecting portion 241 is repositionably rotatably connected to the outer side of the shell 1, preferably connected to the other side of the four limit blocks 5, the second working portion 242 passes through another connecting hole 30 and extends obliquely toward the lock. That is, the first lock plate 23 and the second lock plate 24 both have a "7"-shaped structure. When the first lock plate 23 is clamped on the first locking step 211, or the second lock plate 24 is clamped on the second locking step 221, the lower end of the first lock plate 23 can be clamped at the corner of the first locking step 211, and the lower end of the second lock plate 24 can be clamped at the corner of the second locking step 221. The locking force of the first lock plate 23 and the second lock plate 24 with the "7"-shaped structure is better, which can effectively improve safety.

[0053] Optionally, the first connection portion 231 and the second connection portion 241 are respectively connected to the two sides of the four limit blocks 5 through a torsion spring. Of course, in other embodiments, the first connection portion 231 and the second connection portion 241 can also be connected to the two sides of the four limit blocks 5 through other structures, for example, the first lock plate 23 and the second lock plate 24 are both spring plates, the first lock plate 23 and the second lock plate 24 have a certain elasticity, the first lock element 21 and the second lock element 22 can push the first lock plate 23 and the second lock plate 24 away from each other, and the first lock plate 23 and the second lock plate 24 can also automatically reset.

[0054] Furthermore, if Figure 3 , Figure 4 and Figure 6As shown, a partition 6 is provided in the mounting hole 10, and two limiting holes 40 are provided on the partition 6. The two limiting holes 40 are opposite to the two through holes 20 one by one. The two ends of each lock member pass through a through hole 20 and a limiting hole 40 respectively, and are elastically connected to the partition 6. Under the elastic action, the lock member can be reset to the unlocked position. Specifically, the tensioning member 3 is located below the partition 6, and the first lock member 21 includes a first pressing portion 213, a first body 214, a first elastic member 216 and a first locking body 215 connected in sequence. The second lock member 22 includes a second pressing portion 223, a second body 224, a second elastic member 226 and a second locking body 225 connected in sequence. The first pressing portion 213 protrudes from a through hole 20, and a first shoulder is provided at one end of the first body 214 close to the first pressing portion 213. When the first lock member 21 is in the unlocked position, the first shoulder abuts against the inner side of the housing 1, that is, the first The length of the shoulder in the Y-axis direction or the X-axis direction is greater than the length of the through hole 20 in the Y-axis direction or the X-axis direction, thereby preventing the first locking piece 21 from detaching from the through hole 20 from the shell 1; the second pressing portion 223 protrudes from the other through hole 20, and a second shoulder is provided at one end of the second body 224 close to the second pressing portion 223. When the second locking piece 22 is in the unlocked position, the second shoulder abuts against the inner side of the shell 1, that is, the length of the second shoulder in the Y-axis direction or the X-axis direction is greater than the length of the through hole 20 in the Y-axis direction or the X-axis direction, thereby preventing the second locking piece 22 from detaching from the through hole 20 from the shell 1.

[0055] More specifically, the first locking step 211 and the first unlocking rod 212 are arranged on the first body 214, and the second locking step 221 and the second unlocking rod 222 are arranged on the second body 224; the first elastic member 216 is arranged between the first body 214 and the first locking body 215, and is located above the partition 6, and the lower end of the first locking body 215 passes through a limiting hole 40 for inserting a tensioning member 3, and the second elastic member 226 is arranged between the second body 224 and the second locking body 225, and is located above the partition 6, and the lower end of the second locking body 225 passes through another limiting hole 40 for inserting another tensioning member 3. When the first pressing portion 213 is pressed, the first body 214 compresses the first elastic member 216 and causes the first locking body 215 to be inserted into the tensioning member 3. When the second pressing portion 223 is pressed, the first locking plate 23 releases the first locking step 211, and the first elastic member 216 extends to drive the first body 214 and the first pressing portion 213 to move upward and reset, thereby unlocking the tensioning member 3.

[0056] Furthermore, each tensioning member 3 includes two tensioning blocks 31, which are arranged at intervals along the Y-axis direction, and each tensioning block 31 is resettably connected to the hole wall of the mounting hole 10. When the locking member moves toward the locking position, the lower end of the locking member is inserted between the two tensioning blocks 31 of a tensioning member 3, and drives the two tensioning blocks 31 to move away from each other to the tensioning hook. When the locking member moves toward the unlocking position, the two tensioning blocks 31 move closer to each other to release the hook. When the locking member moves toward the tensioning member 3, the two tensioning blocks 31 can be pushed away, so that the outer circumference formed by the two tensioning blocks 31 becomes longer, and the inner circle of the tensioning hook is tightened, that is, the locking hook is locked. When the two tensioning blocks 31 are reset and retracted, the outer circumference formed by the two tensioning blocks 31 becomes smaller, and the inner circle of the hook is released, that is, the hook is unlocked.

[0057] Preferably, the tension block 31 is in a quarter-cylindrical structure, and the arc surface of each tension block 31 can fit and press against the inner circle of the lock hook. The tension block 31 in a quarter-cylindrical structure can fit the inner circle of the lock hook well to increase the contact area and improve the locking force. Of course, in other embodiments, the tension block 31 can also be in other shapes, such as a cylinder.

[0058] More preferably, the first locking body 215 and the second locking body 225 are both in a cone structure, and a guide groove 50 is provided on each tensioning block 31, and the guide groove 50 is adapted to the outer periphery of the first locking body 215 and the second locking body 225 in the cone structure. When the first locking body 215 or the second locking body 225 moves downward, it moves along the guide groove 50, so that the first locking body 215 or the second locking body 225 can smoothly separate the two tensioning blocks 31, and when the first locking body 215 or the second locking body 225 moves upward, it moves along the guide groove 50, so that the first locking body 215 or the second locking body 225 can smoothly move away from the two tensioning blocks 31.

[0059] A tensioning member 3 is provided on both sides of the baffle 4, and the two ends of each tensioning member 3 are elastically connected to the hole wall of the mounting hole 10 and the baffle 4, respectively, to realize the installation and reset setting of the tensioning member 3. For example, a plurality of first connection grooves (not shown in the figure) are provided on the hole wall of the mounting hole 10, one end of a tensioning block 31 is inserted into a connection groove and elastically connected to the groove wall of the connection groove, and a plurality of second connection grooves (not shown in the figure) are provided on both sides of the baffle 4, and the other end of each tensioning block 31 is inserted into a second connection groove and elastically connected to the groove wall of the second connection groove. The tensioning block 31 is elastically connected to the first connection groove and the second connection groove, so that the tensioning block 31 can automatically reset when no force is applied to unlock the lock hook.

[0060] Optionally, the tension block 31 is connected to the groove wall of the first connecting groove and the groove wall of the second connecting groove through a compression spring, and the length of the compression spring is extended along the Y-axis direction. When the tension block 31 is subjected to force, the tension block 31 moves in the Y-axis direction and causes the compression spring to contract; when the tension block 31 is not subjected to force, the tension block 31 automatically moves inward under the extension of the compression spring. The compression spring can also be replaced by other elastic structures, such as elastic cotton. Of course, in other embodiments, the length of the compression spring can also extend in other directions, such as along a first direction, the first direction is on a plane formed by the Y-axis direction and the Z-axis direction, and the first direction is set at an angle to the Y-axis direction and also at an angle to the Z-axis direction.

[0061] Embodiment 2

[0062] This embodiment provides a safety belt buckle, which is substantially the same in structure as the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the same structures of this embodiment and the first embodiment are not repeated here.

[0063] The tension block 31 provided in this embodiment is provided with support rods (not shown in the figure) at both ends, the first connecting groove and the second connecting groove are both T-shaped grooves, a slider is slidably provided in each first connecting groove and each second connecting groove, and the slider is resettably connected to the groove wall of the first connecting groove or the groove wall of the second connecting groove, and the support rods at both ends of the tension block 31 are connected to the slider in the first connecting groove and the slider in the second connecting groove respectively. The first connecting groove and the second connecting groove are set as T-shaped grooves, which can effectively prevent the slider from falling off and make the slider slide smoothly. When the tension block 31 is subjected to force, the support rod applies force to the slider to make the slider slide, and when the tension block 31 is not subjected to force, the slider automatically resets and drives the tension block 31 to reset.

[0064] Preferably, the slider is connected to the slot wall of the first connecting slot or the slot wall of the second connecting slot through a compression spring, which has a simple structure and low cost. Of course, in other embodiments, the slider can also be connected to the slot wall of the first connecting slot or the slot wall of the second connecting slot through a magnetic structure, that is, the slider and the slot wall of the first connecting slot or the slot wall of the second connecting slot are magnetically repelled. When the tension block 31 is subjected to force, the slider in the first connecting slot is driven to overcome the magnetic force and approach the magnetic slot wall of the first connecting slot, and the slider in the second connecting slot is driven to overcome the magnetic force and approach the magnetic slot wall of the second connecting slot; when the tension block 31 is not subjected to force, the slider in the first connecting slot moves away from the magnetic slot wall of the first connecting slot under the action of magnetic repulsion, and the slider in the second connecting slot moves away from the magnetic slot wall of the second connecting slot under the action of magnetic repulsion, thereby resetting the tension block 31.

[0065] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A seat belt buckle, characterized in that: include: A housing (1), wherein a mounting hole (10) is provided on the housing (1), and two through holes (20) are provided on the wall of the mounting hole (10) at intervals along the X-axis direction; An interlocking assembly (2), the interlocking assembly (2) comprising two locking elements arranged in the mounting hole (10) in a repositionable manner along the Z-axis direction, the upper end of each locking element protruding from one of the through holes (20), each locking element having a locking position and an unlocking position, wherein when one of the locking elements moves toward the locking position, it drives the other locking element to be reset to the unlocking position; Two tensioning members (3), the two tensioning members (3) being respectively repositionably arranged in the mounting holes (10) and respectively located below the two locking members, and the locking hook of each safety belt being able to be sleeved on the periphery of one of the locking members and one of the tensioning members (3); When the lock element is in the locking position, the lower end of the lock element is inserted into the tensioning element (3), and the outer periphery of the tensioning element (3) presses the inner circle of the lock hook; when the lock element is in the unlocking position, the tensioning element (3) releases the lock hook; The interlocking assembly (2) further comprises a first locking plate (23) and a second locking plate (24), the first locking plate (23) and the second locking plate (24) being respectively rotatably arranged on the housing (1) in a resetting manner, the two locking elements being both located between the first locking plate (23) and the second locking plate (24), the two locking elements comprising a first locking element (21) and a second locking element (22); when the first locking element (21) moves toward the locking position, the first locking plate (23) and the second locking plate (24) are pushed away from each other, when the first locking element (21) is located at the locking position, the first locking plate (23) clamps the first locking element (21), when the second locking element (22) moves toward the locking position, the first locking plate (23) is pushed to release the first locking element (21), the first locking element (21) is reset to the unlocking position, when the second locking element (22) is located at the locking position, the second locking plate (24) is clamped into the second locking element (22); The first lock member (21) is provided with a first locking step (211) on a side facing the first lock plate (23), and a first unlocking rod (212) on a side facing the second lock plate (24); the second lock member (22) is provided with a second locking step (221) on a side facing the second lock plate (24), and a second unlocking rod (222) on a side facing the first lock plate (23); when the first lock member (21) is located at the locked position, the lower end of the first lock plate (23) abuts against the first locking step (211); when the second lock member (22) moves toward the locked position, the second unlocking rod (222) pushes the first lock plate (23) away from the first locking step (211); the first lock member (21) is reset to the unlocking position, and the second lock plate (24) is reset and rotated toward the first lock plate (23); when the second lock member (22) is located at the locked position, the lower end of the second lock plate (24) abuts against the second locking step (221); The first lock plate (23) comprises a first connection portion (231) and a first working portion (232); the second lock plate (24) comprises a second connection portion (241) and a second working portion (242); two connection holes (30) are provided on the housing (1) at intervals along the Y-axis direction; the length direction of the connection holes (30) extends along the X-axis direction; the first connection portion (231) is rotatably connected to the outside of the housing (1) in a resettable manner; the first working portion (232) passes through one of the connection holes (30) and extends obliquely toward the lock element; the second connection portion (241) is rotatably connected to the outside of the housing (1) in a resettable manner; the second working portion (242) passes through the other of the connection holes (30) and extends obliquely toward the lock element.

2. The seat belt buckle according to claim 1, characterized in that: Also includes: A partition (6) is arranged in the mounting hole (10), and two limiting holes (40) are provided on the partition (6), and the two limiting holes (40) are opposite to the two through holes (20) one by one, and two ends of each locking element respectively pass through one through hole (20) and one limiting hole (40), and are elastically connected to the partition (6), and under the action of elasticity, the locking element can be reset to the unlocked position.

3. The seat belt buckle according to any one of claims 1 to 2, characterized in that: Each of the tensioning members (3) comprises two tensioning blocks (31), the two tensioning blocks (31) are arranged at intervals along the Y-axis direction, and each of the tensioning blocks (31) is resettably connected to the hole wall of the mounting hole (10); when the locking member moves toward the locking position, the lower end of the locking member is inserted between the two tensioning blocks (31) of one of the tensioning members (3), and drives the two tensioning blocks (31) to move away from each other to tighten the locking hook; when the locking member resets and moves toward the unlocking position, the two tensioning blocks (31) move closer to each other to release the locking hook.

4. The seat belt buckle according to claim 3, characterized in that: Each of the tensioning blocks (31) is in the form of a quarter-cylindrical structure, and the arc-shaped surface of each of the tensioning blocks (31) can fit and be pressed against the inner ring of the locking hook.

5. The seat belt buckle according to claim 3, characterized in that: A baffle (4) is provided in the mounting hole (10), and the baffle (4) is located between the two locking elements.

6. The seat belt buckle according to claim 5, characterized in that: A plurality of first connection grooves are provided on the hole wall of the mounting hole (10), one end of a tensioning block (31) is inserted into one of the first connection grooves and is elastically connected to the groove wall of the first connection groove, and a plurality of second connection grooves are provided on both sides of the baffle (4), the other end of each tensioning block (31) is inserted into one of the second connection grooves and is elastically connected to the groove wall of the second connection groove.

7. The seat belt buckle according to any one of claims 1-2, characterized in that: Four limit blocks (5) are arranged at intervals on the housing (1) along the X-axis direction, each through hole (20) is located between two limit blocks (5), and the upper end of the locking element is lower than the limit block (5).

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