Alligator mouth assembly of a safety buckle

Abstract

The present application relates to a crocodile mouth assembly of a safety buckle, comprising two relatively arranged shells, a locking tongue rotatably mounted in the shells, and a reset assembly for driving the locking tongue to rotate; the reset assembly comprises a locking plate for clamping the locking tongue; the locking plate is fixedly connected with a clamping block on both sides close to the two shells, and the shell is penetrated with a locking through groove for the sliding installation of the clamping block. The present application allows the locking plate to be limited in sliding direction by the locking through groove through the clamping block, thereby reducing the probability that the locking plate will be offset when it is hit from the side during use, causing the reset assembly to fail to lock or release the locking tongue, thereby reducing the effect of safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of safety buckles, and in particular to an alligator jaw assembly of a safety buckle. Background Art

[0002] With the improvement of living standards, the popularity of family cars is also increasing. When driving, children are sometimes brought along. Usually, when children are traveling by car, safety seats are installed in the car for them to sit on.

[0003] In the prior art, a child is generally fixed in a safety seat by a safety buckle. The safety buckle includes a crocodile mouth assembly and a buckle tongue buckled in the crocodile mouth assembly. The crocodile mouth assembly includes two shells, a locking tongue for locking the buckle tongue, and a reset assembly for driving the locking tongue to rotate. The reset assembly is installed in the shell and is used to drive the locking tongue to rotate, and the locking tongue is controlled by the reset assembly to lock or release the buckle tongue to achieve the buckling of the safety buckle.

[0004] During use of the above-mentioned crocodile mouth assembly, when the crocodile mouth assembly is subjected to a lateral impact, the probability of the reset component located in the shell being offset during the impact will increase, causing the reset component located in the shell to fail to lock or release the locking tongue, thereby causing a safety hazard. Utility Model Content

[0005] In order to reduce the probability of the reset component being offset during an impact, the present application provides a crocodile mouth assembly of a safety buckle.

[0006] The crocodile mouth assembly of a safety buckle provided in this application adopts the following technical solution:

[0007] A crocodile mouth assembly of a safety buckle includes two shells arranged opposite to each other, a locking tongue rotatably installed in the shells, and a reset component for driving the locking tongue to rotate; the reset component includes a locking plate for clamping the locking tongue; the locking plate is fixedly connected with a clamping block on both sides close to the two shells, and the shell is penetrated by a locking groove for the sliding installation of the clamping block.

[0008] By adopting the above technical solution, the sliding direction of the locking plate is limited by the locking groove through the clamping block, thereby reducing the probability that the locking plate will deviate when subjected to a lateral impact during use, causing the reset component to fail to lock or release the locking tongue, thereby reducing safety hazards.

[0009] Optionally, a locking groove for the locking plate to be engaged is formed on one side of the locking tongue close to the locking plate.

[0010] By adopting the above technical solution, a locking method between the locking tongue and the locking plate is disclosed. By clamping the locking tongue in the locking groove, the probability of the locking tongue loosening during rotation is reduced, making the locking effect of the locking tongue more stable.

[0011] Optionally, the shell is recessed toward the other shell to form a plurality of limit blocks, and a limit sliding groove for the sliding installation of the locking plate is formed between two adjacent limit blocks.

[0012] By adopting the above technical solution, a locking block is installed on a housing. By slidingly installing the locking piece in the limiting sliding groove, the sliding process of the locking piece on the housing is more stable, and the probability of the locking piece deflecting is further reduced.

[0013] Optionally, the reset assembly includes a reset plate fixedly mounted on an end of the locking plate away from the locking tongue, and a reset portion is fixedly connected to a side of the reset plate away from the locking plate, and the reset portion is used to drive the reset plate to move along the length direction of the reset plate.

[0014] By adopting the above technical solution, the locking piece moves along the length direction of the reset plate under the action of the reset portion, thereby making the process of locking or releasing the locking tongue by the locking piece more convenient.

[0015] Optionally, it further includes a plurality of positioning shafts; the shell is provided with positioning through holes for installing the positioning shafts, and the reset plate is penetrated with positioning grooves corresponding to the positioning through holes one by one and for installing the positioning shafts.

[0016] By adopting the above technical solution, the sliding direction of the reset plate is limited by a plurality of positioning shafts, thereby reducing the probability of the reset plate moving.

[0017] Optionally, a clamping groove for clamping the reset plate is formed on a side of the locking plate away from the locking tongue, and a clamping through hole for clamping the locking plate is formed through the reset plate.

[0018] By adopting the above technical solution, a clamping form of the locking plate and the reset plate is disclosed. The locking plate is clamped to the reset plate through the clamping groove, and the reset plate is clamped to the locking plate through the clamping through hole, so that the connection between the reset plate and the locking plate is more stable, and the probability of the locking plate and the reset plate falling off is reduced.

[0019] Optionally, a rotating shaft is further included, and a mounting shaft hole for mounting the rotating shaft is opened on the shell, and the locking tongue is rotatably mounted on the rotating shaft.

[0020] By adopting the above technical solution, a method of installing the locking tongue on the shell is disclosed, so that the locking tongue is confined in the shell, reducing the probability of the locking tongue moving under the action of external force, thereby making the installation of the locking tongue more stable.

[0021] Optionally, a locking port is provided on one side of the shell close to the locking tongue, and the locking tongue is provided with a locking opening corresponding to the locking port; the locking tongue has a locking position and a releasing position after the reset component is driven, and when the locking tongue is in the locking position, the opening direction of the locking opening is perpendicular to the opening direction of the locking port; when the locking tongue is in the releasing position, the opening direction of the locking opening is parallel to the opening direction of the locking port.

[0022] By adopting the above technical solution, the shell and the locking tongue can lock the buckle tongue under the action of the locking port and the locking opening, the locking structure is relatively simple, and the locking effect is better.

[0023] Optionally, the reset assembly further includes a reset spring, one end of which is connected to the reset plate, and the other end of which is connected to the locking tongue, so that the locking tongue always has a tendency to rotate along the tension direction of the reset spring.

[0024] By adopting the above technical solution, the locking tongue of the reset spring member and the reset plate are connected, so that the rotation of the locking tongue can be controlled by controlling the sliding of the reset plate, and it is relatively simple to control the rotation of the locking tongue.

[0025] Optionally, reinforcing ribs are formed on opposite sides of the two shells, and the reinforcing ribs are arranged between the reset portion and the locking tongue.

[0026] By adopting the above technical solution, the strength of the corresponding position of the shell is strengthened by the reinforcing ribs, the probability of deformation of the shell when a side impact occurs is reduced, and the stability of the structure is further increased.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The locking plate is limited in sliding direction by the locking groove of the clamping block, which reduces the probability that the locking plate will deviate when it is hit from the side during use, causing the locking or releasing effect of the reset component on the locking tongue to fail, thereby reducing safety hazards;

[0029] 2. The housing and the locking tongue are locked under the action of the locking port and the locking opening, and the locking structure is relatively simple and the locking effect is better;

[0030] 3. The reinforcing ribs strengthen the strength of the corresponding positions of the shell, reduce the probability of deformation of the shell when a side impact occurs, and further increase the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a crocodile mouth assembly of a safety buckle in an embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of the structure of the shell in the embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of the structure of the locking tongue in the embodiment of the present application.

[0034] Figure 4 It is a schematic diagram of the structure of the locking plate in the embodiment of the present application.

[0035] Figure 5 It is a schematic diagram of the structure of the reset plate in the embodiment of the present application.

[0036] Explanation of the reference numerals: 1. Shell; 11. Locking mouth; 12. Mounting shaft hole; 13. Positioning through hole; 14. Locking through groove; 15. Reinforcing rib; 16. Limiting block; 161. Limiting slide groove; 2. Rotating shaft; 3. Locking tongue; 31. Locking opening; 32. Locking groove; 33. Locking through hole; 4. Positioning shaft; 5. Reset assembly; 51. Locking sheet; 511. Snap-on block; 512. Snap-on groove; 52. Reset plate; 521. Connecting portion; 5211. Snap-on through hole; 5212. Reset through hole; 522. Sliding portion; 5221. Positioning slide groove; 523. Reset portion; 5231. Reset opening; 53. Reset spring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-5 This application is described in further detail.

[0038] The embodiment of the present application discloses a crocodile mouth assembly of a safety buckle.

[0039] Reference Figure 1 A crocodile mouth assembly of a safety buckle includes two housings 1, a rotating shaft 2 rotatably mounted on the housing 1, a locking tongue 3 rotatably mounted on the rotating shaft 2, a plurality of positioning shafts 4 fixedly mounted on the housing 1, and a reset assembly 5 slidably mounted in the housing 1. In this embodiment, the locking tongue 3 is rotatably mounted between the two housings 1 and is used to cooperate with the housing 1 to lock the buckle tongue, and the reset assembly 5 abuts against the locking tongue 3 to control the rotation of the locking tongue 3.

[0040] Reference Figure 1 and Figure 2, a lock opening 11 for the buckle tongue to enter is provided at one end of the shell 1, and the shell 1 is also penetrated with a mounting shaft hole 12 for the installation of the rotating shaft 2, a positioning through hole 13 for the installation of the positioning shaft 4, and a locking through groove 14 for the reset component 5 to be engaged. Reinforcing ribs 15 and a plurality of limit blocks 16 are formed on the opposite sides of the two shells 1. In this embodiment. The width of the lock opening 11 gradually decreases from the edge of the shell 1 to the middle of the shell 1. The reinforcing ribs 15 and the limit blocks 16 are both formed by the recess of the shell 1, and the recess direction is from any one shell 1 to the other shell 1. There are two positioning through holes 13 on the shell 1, and the two positioning through holes 13 are arranged along the length direction of the shell 1. There are two reinforcing ribs 15 on the shell 1, and the length direction of the reinforcing ribs 15 is parallel to the length direction of the shell 1. The reinforcing ribs 15 are respectively located on both sides of the two positioning through holes 13.

[0041] Reference Figure 1 and Figure 2 The limit block 16 is arranged between the lock 11 and the positioning through hole 13, and two limit blocks 16 form a group, and there are two groups of limit blocks 16 on the housing 1. A limit slide groove 161 for sliding installation of the reset assembly 5 is formed between the two limit blocks 16 arranged in the same group. The limit slide grooves 161 between the two groups of limit blocks 16 are in the same straight line, and the length direction of the limit slide grooves 161 is parallel to the length direction of the housing 1. In this embodiment, the locking through groove 14 is located between the two groups of limit blocks 16, and the mounting shaft hole 12 is located between the lock 11 and the limit block 16.

[0042] Reference Figure 1 and Figure 3 The locking tongue 3 is a plate-like structure. A locking opening 31 for cooperating with the lock 11 to lock the buckle tongue is provided on the side of the locking tongue 3 close to the lock 11, and a locking groove 32 for the reset assembly 5 to be engaged is provided on the side of the locking tongue 3 away from the lock 11. The locking tongue 3 is also provided with a locking through hole 33 for the reset assembly 5 to be installed. In this embodiment, the locking through hole 33 is located on the side of the locking tongue 3 away from the locking opening 31, and the reset assembly 5 allows the locking tongue 3 to be rotatably installed on the rotating shaft 2 through the locking through hole 33. The locking tongue 3 has a loosening position and an engaging position under the drive of the reset assembly 5. When the locking tongue 3 is in the engaging position, the locking tongue 3 rotates to the opening direction of the locking opening 31 to be perpendicular to the opening direction of the lock 11, so that the buckle tongue placed in the lock 11 is locked in the locking opening under the action of the housing 1 and the locking tongue 3. When the locking tongue 3 is in the release position, the locking tongue 3 rotates until the opening direction of the locking opening 31 is parallel to the opening direction of the lock hole 11 , so that the locked buckle tongue can be released from the locking opening 31 and the lock hole 11 .

[0043] Reference Figure 1The reset assembly 5 includes a locking piece 51, a reset plate 52 and a reset spring 53. In this embodiment, one end of the locking piece 51 abuts against the locking tongue 3, and the other end of the locking piece 51 is detachably connected to the reset plate 52. The locking piece 51 and the reset plate 52 are perpendicular to each other. One end of the reset spring 53 is connected to the reset plate 52 and the other end of the reset spring 53 is connected to the locking through groove 14 of the locking tongue 3.

[0044] Reference Figure 1 and Figure 4 The locking piece 51 is a plate-shaped structure, and the two sides of the locking piece 51 are slidably installed in the limiting sliding groove 161. The two sides of the locking piece 51 are fixedly connected with the clamping blocks 511. In this embodiment, in order to prevent the locking piece 51 from rotating during the sliding process, the clamping blocks 511 are slidably installed on the locking through groove 14. A clamping groove 512 for clamping the reset plate 52 is provided on the side of the locking piece 51 away from the locking tongue 3.

[0045] Reference Figure 3 and Figure 4 When the locking tongue 3 is in the locking position, the locking piece 51 is located in the locking groove 32 and abuts against the side wall of the locking groove 32 .

[0046] Reference Figure 1 and Figure 5 , the reset plate 52 is a long plate-shaped structure. The reset plate 52 includes a connecting portion 521, a sliding portion 522 and a reset portion 523. In this embodiment, the sliding portion 522 is located between the connecting portion 521 and the reset portion 523, and the connecting portion 521 is used to connect the locking plate 51 and the reset spring 53. The sliding portion 522 is used for the reset plate 52 to be slidably installed on the housing 1, and the reset portion 523 is used to drive the reset plate 52 to slide.

[0047] Reference Figure 1 and Figure 5 The connecting portion 521 is provided with a through hole 5211 for engaging the locking piece 51 and a reset through hole 5212 for installing the reset spring 53 on one side of the connecting portion 521 close to the locking piece 51. In this embodiment, when the connecting portion 521 is engaged with the locking piece 51, the connecting portion 521 is located between the limiting blocks 16 of the two housings 1, and the limiting blocks 16 reduce the probability of the connecting portion 521 and the locking piece 51 being separated.

[0048] Reference Figure 1 and Figure 5 The sliding part 522 is provided with two positioning slots 5221 corresponding to the positioning through holes 13. The positioning shaft 4 is installed in the positioning slots 5221. In this embodiment, the width of the positioning slots 5221 is the same as the width of the positioning shaft 4, so that the sliding part 522 can only slide along the length direction of the housing 1 under the action of the positioning shaft 4.

[0049] Reference Figure 1 and Figure 5 A reset opening 5231 is provided at one end of the reset portion 523 away from the sliding portion 522. In this embodiment, the operator can slide the reset portion 523 in a direction away from the sliding portion 522 through the reset opening 5231, thereby driving the reset plate 52 to slide.

[0050] The implementation principle of the crocodile mouth assembly of a safety buckle in the embodiment of the present application is:

[0051] 1. The operator slides the reset plate 52 toward one side of the sliding portion 522 and slides the locking piece 51 connected to the reset plate 52 toward the reset plate 52, so that the locking piece 51 is disengaged from the locking groove 32, and the locking effect of the locking piece 51 on the locking tongue 3 is released;

[0052] 2. Under the action of the reset spring 53, the locking tongue 3 rotates, so that the locking tongue 3 is transformed from the clamping position to the loosening position. After the opening direction of the locking opening 31 is parallel to the direction of the lock opening 11, the buckle tongue is placed in the lock opening 11;

[0053] 3. Under the action of the reset plate 52, the locking tongue 3 rotates, so that the locking tongue 3 is transformed from the loosening position to the engaging position, so that the locking piece 51 is engaged in the locking groove 32, and the buckle tongue is engaged in the crocodile mouth assembly of the safety buckle.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crocodile mouth assembly of a safety buckle, characterized in that: The invention comprises two shells (1) arranged opposite to each other, a locking tongue (3) rotatably mounted in the shells (1), and a reset assembly (5) for driving the locking tongue (3) to rotate; the reset assembly (5) comprises a locking plate (51) for clamping the locking tongue (3); the locking plate (51) is fixedly connected with a clamping block (511) on both sides close to the two shells (1); the shell (1) is provided with a locking through groove (14) for sliding installation of the clamping block (511); the locking tongue (3) is provided with a locking groove (32) for clamping the locking plate (51) on one side close to the locking plate (51); the shell (1) is recessed in the direction of the other shell (1) to form a plurality of limit blocks (16), and a limit sliding groove (161) for sliding installation of the locking plate (51) is formed between two adjacent limit blocks (16).

2. The crocodile mouth assembly of a safety buckle according to claim 1, characterized in that: The reset assembly (5) comprises a reset plate (52) fixedly mounted on an end of the locking plate (51) away from the locking tongue (3); a reset portion (523) is fixedly connected to a side of the reset plate (52) away from the locking plate (51); the reset portion (523) is used to drive the reset plate (52) to move along the length direction of the reset plate (52).

3. The crocodile mouth assembly of a safety buckle according to claim 2, characterized in that: It also includes a plurality of positioning shafts (4); the housing (1) is provided with positioning through holes (13) for installing the positioning shafts (4); the reset plate (52) is provided with positioning slots (5221) corresponding one-to-one to the positioning through holes (13) and for installing the positioning shafts (4).

4. The crocodile mouth assembly of a safety buckle according to claim 2, characterized in that: A clamping groove (512) for clamping the reset plate (52) is provided on a side of the locking plate (51) away from the locking tongue (3), and a clamping through hole (5211) for clamping the locking plate (51) is provided through the reset plate (52).

5. The crocodile mouth assembly of a safety buckle according to claim 2, characterized in that: It also comprises a rotating shaft (2), the housing (1) is provided with a mounting shaft hole (12) for mounting the rotating shaft (2), and the locking tongue (3) is rotatably mounted on the rotating shaft (2).

6. The crocodile mouth assembly of a safety buckle according to claim 5, characterized in that: A locking opening (11) is provided on one side of the housing (1) close to the locking tongue (3); the locking tongue (3) is provided with a locking opening (31) corresponding to the locking opening (11); the locking tongue (3) has a locking position and a releasing position after the reset assembly (5) is driven; when the locking tongue (3) is in the locking position, the opening direction of the locking opening (31) is perpendicular to the opening direction of the locking opening (11); when the locking tongue (3) is in the releasing position, the opening direction of the locking opening (31) is parallel to the opening direction of the locking opening (11).

7. The crocodile mouth assembly of a safety buckle according to claim 6, characterized in that: The reset assembly (5) further comprises a reset spring (53), one end of the reset spring (53) being connected to the reset plate (52), and the other end of the reset spring (53) being connected to the locking tongue (3), so that the locking tongue (3) always has a tendency to rotate along the length direction of the reset spring (53).

8. The crocodile mouth assembly of a safety buckle according to claim 2, characterized in that: Reinforcing ribs (15) are formed on opposite sides of the two shells (1), and the reinforcing ribs (15) are arranged between the reset portion (523) and the locking tongue (3).

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