CN218750458U

CN218750458U - Automobile seat lock

Info

Publication number: CN218750458U
Application number: CN202223324519.4U
Authority: CN
Inventors: 魏雷; 戴旭东; 黄万志
Original assignee: Sichuan Zhonghe Taili Technology Co ltd
Current assignee: Sichuan Zhonghe Taili Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-28
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses an automobile seat lock, which is used for realizing the locking and unlocking of an automobile seat by matching with a lock bolt arranged on an automobile body, and the seat lock realizes the locking and unlocking of the lock bolt by adopting a mode that a pawl control component is matched with a ratchet wheel control component; the pawl control assembly comprises a pawl and a first torsion spring, one end of the first torsion spring is clamped with the pawl, and the other end of the first torsion spring is clamped with the mounting shell; the pawl control assembly further comprises a fastener, the fastener is mounted on the pawl, the first torsion spring further comprises a spring coil, and the spring coil is clamped with the fastener; when the pawl rotates, the fastener and the first torsion spring can be driven to synchronously rotate; the utility model discloses an improve the connected mode of pawl and the reset torsion spring that is used for making the pawl reset in the current car seat lock, solve the technical problem that the reset torsion spring that is used for making the pawl reset drops easily in assembly and use.

Description

Automobile seat lock

Technical Field

The utility model relates to a car seat lock field, concretely relates to car seat lock.

Background

The automobile seat lock is used for locking the position of a seat and comprises a lock body and a lock bolt, wherein the lock body is arranged on the seat, the lock bolt is fixed on an automobile body, and the lock and the unlock of the automobile seat are realized through the matching between the lock body and the lock bolt.

In the matching structure of the lock body and the lock bolt which are conventionally used, the main body structure of the lock body is installed in the protective shell, and the main body structure of the lock body is usually matched with the lock bolt by adopting the matching of a ratchet wheel and a pawl, so that the locking and unlocking of the automobile seat are realized.

Specifically, the internal structure of the car seat lock body in the prior art comprises a ratchet wheel assembly and a pawl assembly, wherein the pawl assembly comprises a pawl and a reset torsion spring, one end of the reset torsion spring is clamped on the surface of the pawl, the other end of the reset torsion spring is clamped on a lock body protective shell and used for providing torque for the rotation of the pawl so as to reset the pawl, and the reset position of the pawl is the locking position of the lock body; the locking and unlocking process of the lock body is that the pawl is driven to rotate to the unlocking position by external force, the reset torsion spring is in an elastic force accumulation state at the moment, the ratchet wheel rotates to the unlocking position at the moment, the lock body is unlocked, and when the external force disappears, the reset torsion spring can drive the pawl to reset to the locking position and simultaneously drive the ratchet wheel to reset to the locking position, so that the lock body returns to the locking state.

In prior art, in order to realize the synchronous rotation of pawl and reset torsion spring smoothly, will be used for the both ends and the pawl joint of the reset torsion spring that the pawl resets usually, set up the circular port simultaneously on the pawl to insert the pivot in the hole, the pivot is worn out from the reset torsion spring center simultaneously, makes pawl and reset torsion spring realize coaxial rotation.

However, in the process of assembling the ratchet wheel assembly, because the reset torsion spring for resetting the pawl is only clamped with the pawl at two ends, the reset torsion spring is very easy to fall off in the assembling process, and adverse effects are caused to the assembling process; moreover, because a gap is formed between the coil of the reset torsion spring and the rotating shaft, the elastic deformation and rotation of the reset torsion spring is realized, the friction between the coil and the rotating shaft is avoided, the rotation process of the pawl is not stable, however, the gap easily causes the rotation of the reset torsion spring deviated from the axis in the process of driving the pawl to reset by the reset torsion spring, the asynchronous rotation of the pawl and the reset spring is caused to a certain extent, the displacement or falling of the reset torsion spring is easily caused, the service life is prolonged, and the maintenance or replacement frequency is improved.

Therefore, the connecting structure between the pawl and the reset torsion spring for resetting the pawl needs to be improved to prevent the reset torsion spring from falling off, so that the assembly difficulty is reduced, the assembly efficiency is improved, and the assembly time is saved; meanwhile, the reset torsion spring can coaxially rotate with the pawl in the elastic deformation process, so that the working process of the pawl is more stable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a car seat lock, through improving the current car seat lock in the pawl and be arranged in making the pawl reset torsional spring's connected mode, solve the technical problem that the torsional spring that resets that is used for making the pawl reset drops easily in assembly and use.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a car seat lock is used for realizing the locking and unlocking of a car seat by matching with a lock bolt arranged on a car body, and comprises a pawl control component 1, a ratchet wheel control component 2 and an installation shell 4;

the pawl control assembly 1 and the ratchet wheel control assembly 2 are respectively in rotating connection with the mounting shell 4, the pawl control assembly 1 can drive the ratchet wheel control assembly 2 to rotate, and when the ratchet wheel control assembly 2 rotates, locking or unlocking of a lock bolt can be achieved;

the pawl control assembly 1 comprises a pawl 11 and a first torsion spring 12, one end of the first torsion spring 12 is clamped with the pawl 11, and the other end of the first torsion spring 12 is clamped with the mounting shell 4;

the pawl control assembly 1 further comprises a fastener 13, the fastener 13 is mounted on the pawl 11, the first torsion spring 12 further comprises a spring coil 121, and the spring coil 121 is clamped with the fastener 13; when the pawl 11 rotates, the fastening member 13 and the first torsion spring 12 can be driven to rotate synchronously.

The fastener 13 is arranged as a connecting structure between the first torsion spring 12 and the pawl 11, so that the first torsion spring 12 can be prevented from falling off during assembly, the assembly efficiency is improved, the assembly time is saved, and meanwhile, when the pawl 11 rotates, because the fastener 13 has a displacement limiting function on the coil 121 of the first torsion spring 12, the situation that the first torsion spring 12 falls off due to the fact that the first torsion spring 12 and the pawl 11 rotate asynchronously when the pawl 11 rotates can be avoided.

Preferably, the mounting shell 4 is provided with a first through hole 41, a first rotating shaft 42 is installed in the first through hole 41, and the first rotating shaft 42 can rotate in the first through hole 41.

Specifically, the ratchet control assembly 2 includes a ratchet 21 and a second torsion spring 22, one end of the second torsion spring 22 is clamped on the ratchet 21, the other end of the second torsion spring 22 is clamped on the mounting shell 4, and the ratchet 21 and the second torsion spring 22 are both sleeved on a second rotating shaft 44, so that the ratchet control assembly 2 is rotatably connected with the mounting shell 4; one side of the ratchet wheel 21 facing the direction of the pawl 11 is provided with a boss 211, one side of the ratchet wheel 21 facing the direction of the ratchet wheel 21 is provided with a concave pit 115, and the boss 211 and the concave pit 115 can be mutually matched to realize clamping connection of the ratchet wheel 21 and the pawl 11.

When the ratchet wheel 21 and the pawl 11 are at the reset positions, the reset positions of the ratchet wheel 21 and the pawl 11 are the lock positions of the lock body, the second torsion spring 22 is in a compressed state and has elastic force accumulation, the first torsion spring 12 is in an inelastic deformation state and does not have elastic force accumulation, when the pawl 11 rotates around the first rotating shaft 42 under the action of external force, the first torsion spring 12 rotates along with the pawl 11, the first torsion spring 12 is compressed and has elastic force accumulation, at the moment, the ratchet wheel 21 is not blocked by the pawl 11 any more, at the moment, the elastic force accumulation of the second torsion spring 22 is released, the ratchet wheel 21 rotates around the second rotating shaft 44 to an unlocking position, and the unlocking of the lock bolt is realized; when the external force disappears, the elastic accumulated force of the first torsion spring 12 is released to drive the pawl 11 to reset, the pawl 11 further drives the ratchet 21 to reset, and the second torsion spring 22 returns to the elastic compression state again to complete the locking of the lock body.

Preferably, the fastener 13 has a sleeve hole 136 in the center, the sleeve hole 136 is sleeved on the first rotating shaft 42, the periphery of the fastener 13 has a first limiting block 131 and a second limiting block 132 protruding and extending away from the direction of the pawl 11, and the coil 121 of the first torsion spring 12 is clamped between the first limiting block 131 and the second limiting block 132 for limiting the radial displacement of the first torsion spring 12.

Preferably, the pawl 11 is provided with a rotating shaft mounting hole 111, the pawl 11 is sleeved on the first rotating shaft 42 through the rotating shaft mounting hole 111, one side of the fastener 13 far away from the first torsion spring 12 further comprises a clamping block 135 corresponding to the clamping block 135, a clamping groove 112 is formed in the periphery side of the rotating shaft mounting hole 111, and the clamping block 135 can be matched with the clamping groove 112.

Thus, when the first torsion spring 12 rotates, the fastening piece 13 cannot rotate along with the rotation of the first torsion spring 12, the relative position of the fastening piece 13 and the pawl 11 is kept unchanged, meanwhile, the installation and the disassembly are both convenient, the assembly difficulty can be reduced, and the assembly time is saved.

Preferably, the end of the first stopper 131 or the second stopper 132 away from the fastening member 13 further has a locking leg 133 protruding and extending toward the center of the sleeve hole 136 for limiting the axial displacement of the first torsion spring 12.

Preferably, a third stopper 134 is provided on the peripheral side of the sleeve hole 136, protruding and extending away from the pawl 11, for limiting the offset displacement of the coil 121 when it rotates.

Preferably, the car seat lock still includes spacing subassembly 3, spacing subassembly 3 is used for carrying on spacingly to the rotational displacement of pawl 11,

spacing subassembly

3 and 11 butts of pawl, spacing subassembly 3 includes spacing piece 31 and third torsional spring 32, spacing piece 31 and third torsional spring 32 all overlap and locate on first pivot 42, the one end and the spacing piece 31 joint of third torsional spring 32, the other end and the 4 joints of installation shell of third torsional spring 32.

Preferably, the fastening member 13 is installed on one side of the pawl 11 far away from the mounting shell 4 and located between the first torsion spring 12 and the pawl 11, and the limiting assembly 3 is located on the other side of the pawl 11 close to the mounting shell 4.

Preferably, the car seat lock still includes protective housing 5, protective housing 5 and installation shell 4 lock joint, fastener 13 is installed in the pawl 11 one side of keeping away from protective housing 5, and is located between first torsion spring 12 and the pawl 11, first torsion spring 12 and spacing subassembly 3 butt.

The protective housing 5 is used for protecting the internal structure of the seat lock, the protective housing 5 is provided with openings corresponding to the first rotating shaft 42 and the second rotating shaft 44, and the first rotating shaft 42 and the second rotating shaft 44 are respectively connected with the protective housing 5 in a rotating manner.

The technical scheme of the utility model following beneficial effect has: the utility model discloses a connecting structure between pawl and the first torsion spring that is used for making the pawl reset improves, has increased the fastener that can restrict first torsion spring radial and circumferential displacement, prevents that the reset torsion spring from droing to reduce the assembly degree of difficulty, promote assembly efficiency, save assembly time; meanwhile, the reset torsion spring can rotate coaxially with the pawl in the elastic deformation process, so that the working process of the pawl is more stable.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:

fig. 1 is the schematic diagram of the internal structure of the car seat lock of the present invention.

Fig. 2 is a southwest axis explosion diagram of the car seat lock of the present invention.

Fig. 3 is a schematic view of the fastener and pawl assembly of the present invention.

Fig. 4 is a northwest axonometric view of the fastener of the present invention.

Fig. 5 is a schematic view of another embodiment of the fastener installation position of the present invention.

Description of reference numerals: 1. a pawl control assembly; 11. a pawl; 111. a rotating shaft mounting hole; 112. a clamping groove; 113. mounting holes; 114. mounting grooves; 115. a pit; 12. a first torsion spring; 121. a spring coil; 13. a fastener; 131. a first stopper; 132. a second limiting block; 133. clamping a pin; 134. a third limiting block; 135. a clamping block; 136. trepanning; 14. fixing the buckle; 2. a ratchet control assembly; 21. a ratchet wheel; 211. a boss; 22. a second torsion spring; 3. a limiting component; 31. a limiting sheet; 32. a third torsion spring; 4. mounting a shell; 41. a first perforation; 42. a first rotating shaft; 43. a second perforation; 44. a second rotating shaft; 5. a protective shell.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

The utility model discloses an improve the connected mode of pawl and the reset torsion spring that is used for making the pawl reset in the current car seat lock, solve the technical problem that the reset torsion spring that is used for making the pawl reset drops easily in assembly and use.

As shown in fig. 1 to 3, based on the above technical problems to be solved, the present invention discloses an automobile seat lock, which is used for cooperating with a lock bolt installed on an automobile body to lock and unlock an automobile seat, and comprises a pawl control assembly 1, a ratchet wheel control assembly 2 and an installation shell 4;

the pawl control assembly 1 and the ratchet wheel control assembly 2 are respectively in rotary connection with the mounting shell 4, the pawl control assembly 1 can drive the ratchet wheel control assembly 2 to rotate, and when the ratchet wheel control assembly 2 rotates, locking or unlocking of a lock bolt can be achieved;

the pawl control assembly 1 comprises a pawl 11 and a first torsion spring 12, wherein one end of the first torsion spring 12 is clamped with the pawl 11, and the other end of the first torsion spring 12 is clamped with the mounting shell 4;

the pawl control assembly 1 further comprises a fastener 13, the fastener 13 is mounted on the pawl 11, the first torsion spring 12 further comprises a coil 121, and the coil 121 is clamped with the fastener 13.

The fastener can make the shaft of the body of the first torsion spring 12 coincide with the rotation axis of the pawl 11 and the shaft does not deviate during rotation, when the pawl 11 rotates, the fastener 13 and the first torsion spring 12 can be driven to rotate synchronously and coaxially, the fastener 13 is arranged as a connecting structure between the first torsion spring 12 and the pawl 11, the first torsion spring 12 can be prevented from falling off during assembly, the assembly efficiency is improved, the assembly time is saved, meanwhile, when the pawl 11 rotates, because the fastener 13 has a displacement limiting function for the coil 121 of the first torsion spring 12, the situation that the first torsion spring 12 falls off due to the fact that the first torsion spring 12 and the pawl 11 rotate asynchronously when the pawl 11 rotates can be avoided.

As a specific embodiment of the pawl control assembly 1 and the ratchet control assembly 2 rotatably connected to the mounting shell 4, as shown in fig. 2, the mounting shell 4 is provided with a first through hole 41 and a second through hole 43, the first through hole 41 is provided with a first rotating shaft 42, the first rotating shaft 42 can rotate in the first through hole 41, the second through hole 43 is provided with a second rotating shaft 44, and the second rotating shaft 44 can rotate in the second through hole 43.

Specifically, the ratchet control assembly 2 comprises a ratchet 21 and a second torsion spring 22, one end of the second torsion spring 22 is clamped on the ratchet 21, the other end of the second torsion spring 22 is clamped on the mounting shell 4, and the ratchet 21 and the second torsion spring 22 are both sleeved on a second rotating shaft 44, so that the ratchet control assembly 2 is rotatably connected with the mounting shell 4; one side of the ratchet wheel 21 facing the direction of the pawl 11 is provided with a boss 211, one side of the ratchet wheel 21 facing the direction of the ratchet wheel 21 is provided with a concave pit 115, and the boss 211 and the concave pit 115 can be mutually matched to realize clamping connection of the ratchet wheel 21 and the pawl 11. The torsion spring belongs to a spiral spring, the torsion spring can store or release angular energy or statically fix a certain device by rotating a force arm around a middle shaft of the spring body, and the torsion spring can generate resistance to rotating or rotating external force.

Specifically, car seat lock still includes protective housing 5,

protective housing

5 and 4 lock joints of installation shell to protection seat lock inner structure, it begins to have the trompil to correspond to first pivot 42 and second pivot 44 on the protective housing 5, first pivot 42 and second pivot 44 rotate with protective housing 5 respectively and are connected.

As one specific embodiment of the fastening member 13, as shown in fig. 4, a sleeve hole 136 is formed in the center of the fastening member 13, the sleeve hole 136 is sleeved on the first rotating shaft 42, a first limit block 131 and a second limit block 132 protruding from the pawl 11 and extending away from the pawl 11 are formed on the peripheral side of the fastening member 13, and the coil 121 of the first torsion spring 12 is clamped between the first limit block 131 and the second limit block 132 for limiting the radial displacement of the first torsion spring 12.

As a preferable scheme of the first stopper 131 and the second stopper 132, as shown in fig. 3, an end of the first stopper 131 or the second stopper 132 away from the fastening member 13 further has a locking leg 133 protruding and extending toward the center of the trepanning 136 for limiting the axial displacement of the first torsion spring 12.

As a preferable mode of the fastening member 13, as shown in fig. 4, a third stopper 134 projecting on the peripheral side of the housing hole 136 and extending away from the pawl 11 is provided for restricting the deviation displacement of the coil 121 when it rotates.

As a preferable scheme of the fastening element 13, as shown in fig. 3, the pawl 11 has a rotating shaft mounting hole 111, the pawl 11 is sleeved on the first rotating shaft 42 through the rotating shaft mounting hole 111, one side of the fastening element 13 away from the first torsion spring 12 further includes a clamping block 135 corresponding to the clamping block 135, a clamping groove 112 is formed on the periphery of the rotating shaft mounting hole 111, and the clamping block 135 can be matched with the clamping groove 112, so that when the first torsion spring 12 rotates, the fastening element 13 cannot rotate along with the rotation of the first torsion spring 12, the relative position between the fastening element 13 and the pawl 11 is kept unchanged, and meanwhile, the installation and the disassembly are both convenient, the assembly difficulty can be reduced, and the assembly time can be saved.

As a preferred scheme of car seat lock, as shown in fig. 2, car seat lock still includes spacing subassembly 3, spacing subassembly 3 is used for carrying on spacingly to the rotational displacement of pawl 11,

spacing subassembly

Specifically, mounting hole 113 has still been seted up on pawl 11, it has fixed buckle 14 to block in the mounting hole 113, fixed buckle 14 is used for installing car seat lock action bars when actual assembly, the user can stimulate pawl 11 to rotate through controlling car seat lock action bars, when pawl 11 takes place to rotate and touches spacing piece 31, spacing piece 31 gives pawl 11 rotation resistance, pawl 11 is located the card and ends the position, when continuing to stimulate the action bars this moment, the resistance that spacing piece 31 gave will transmit to the car as locking action bars to the final transmission gives the user, make the user know ratchet 21 this moment and has got into the position of unblocking, the user can stop to lock to car seat and apply external force.

In addition, when the pawl 11 is in the locking position, the pawl 11 can rotate by a range that allows the ratchet 21 to have a space to rotate to the unlocking position.

As a specific embodiment of the mounting position of the fastening member 13, as shown in fig. 2, the fastening member 13 is mounted on the side of the pawl 11 away from the mounting case 4, and is located between the first torsion spring 12 and the pawl 11, and the limiting assembly 3 is located at the other side of the pawl 11 close to the mounting shell 4.

As another specific embodiment of the installation position of the fastener 13, as shown in fig. 5, the fastener 13 is installed on the side of the pawl 11 away from the protective shell 5 and located between the first torsion spring 12 and the pawl 11, and the first torsion spring 12 abuts against the limiting assembly 3.

Adopt the utility model discloses a car seat tool to lock has following technological effect: the utility model discloses a connecting structure between pawl and the first torsion spring that is used for making the pawl reset improves, has increased the fastener that can restrict first torsion spring radial and circumferential displacement, prevents that the reset torsion spring from droing to reduce the assembly degree of difficulty, promote assembly efficiency, save assembly time; meanwhile, the reset torsion spring can coaxially rotate with the pawl in the elastic deformation process, so that the working process of the pawl is more stable.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In light of the teachings of the present invention, these features and specific embodiments/examples can be modified to adapt to particular situations and materials without departing from the spirit and scope of the present invention. The embodiments/examples described herein are illustrative of some, but not all embodiments/examples of the invention. The components of embodiments of the present invention, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of specific embodiments/examples of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments/examples of the invention. Therefore, the present invention is not limited by the embodiments disclosed herein, and all other embodiments obtained by a person of ordinary skill in the art without any creative work belong to the protection scope of the present invention.

Claims

1. A car seat lock is used for being matched with a lock bolt installed on a car body to lock and unlock a car seat and comprises a pawl control assembly (1), a ratchet wheel control assembly (2) and an installation shell (4);

the pawl control assembly (1) and the ratchet wheel control assembly (2) are respectively in rotating connection with the mounting shell (4), the pawl control assembly (1) can drive the ratchet wheel control assembly (2) to rotate, and when the ratchet wheel control assembly (2) rotates, locking or unlocking of a lock bolt can be achieved;

the pawl control assembly (1) comprises a pawl (11) and a first torsion spring (12), one end of the first torsion spring (12) is clamped with the pawl (11), and the other end of the first torsion spring (12) is clamped with the mounting shell (4);

the pawl control assembly is characterized in that the pawl control assembly (1) further comprises a fastener (13), the fastener (13) is installed on the pawl (11), the first torsion spring (12) further comprises a spring coil (121), and the spring coil (121) is clamped with the fastener (13).

2. The car seat lock according to claim 1, wherein the mounting shell (4) has a first through hole (41), and a first rotating shaft (42) is mounted in the first through hole (41), and the first rotating shaft (42) can rotate in the first through hole (41).

3. The car seat lock according to claim 2, wherein the fastener (13) has a hole (136) at the center, the hole (136) is sleeved on the first rotating shaft (42), the fastener (13) has a first stopper (131) and a second stopper (132) protruding and extending away from the pawl (11) at the peripheral side, and the coil (121) of the first torsion spring (12) is clamped between the first stopper (131) and the second stopper (132).

4. The car seat lock of claim 3, wherein the pawl (11) is provided with a rotating shaft mounting hole (111), the pawl (11) is sleeved on the first rotating shaft (42) through the rotating shaft mounting hole (111), the fastener (13) further comprises a clamping block (135) on one side away from the first torsion spring (12), the clamping block (135) corresponds to the clamping block, a clamping groove (112) is formed in the periphery of the rotating shaft mounting hole (111), and the clamping block (135) can be matched with the clamping groove (112).

5. The car seat lock according to claim 4, characterized in that the end of the first stopper (131) or the second stopper (132) away from the fastening member (13) is further provided with a clamping foot (133) protruding and extending towards the center of the trepan hole (136).

6. The vehicle seat lock according to claim 4 or 5, characterized in that a third stopper (134) projecting and extending away from the pawl (11) is provided on the peripheral side of the trepan (136).

7. The car seat lock of claim 1, characterized in that, the car seat lock still includes spacing subassembly (3), spacing subassembly (3) are used for spacing to the rotational displacement of pawl (11), spacing subassembly (3) and pawl (11) butt, spacing subassembly (3) are including spacing piece (31) and third torsional spring (32), first pivot (42) are all located to spacing piece (31) and third torsional spring (32) cover, the one end and the spacing piece (31) joint of third torsional spring (32), the other end and the installation shell (4) joint of third torsional spring (32).

8. The vehicle seat lock according to claim 7, characterized in that the fastening element (13) is mounted on the side of the pawl (11) remote from the mounting shell (4) and between the first torsion spring (12) and the pawl (11), and the stop assembly (3) is located on the other side of the pawl (11) close to the mounting shell (4).

9. The car seat lock according to claim 1, characterized in that, the car seat lock further comprises a protective shell (5), the protective shell (5) is fastened with the mounting shell (4), the fastener (13) is mounted on the side of the pawl (11) far away from the protective shell (5) and located between the first torsion spring (12) and the pawl (11), and the first torsion spring (12) abuts against the limiting component (3).