Cushion lock

Abstract

The utility model relates to a cushion lock which comprises an installation plate, a lock catch mechanism matched with a cushion spring bolt and an unlocking mechanism matched with the lock catch mechanism, the lock catch mechanism comprises a lock plate and a limiting plate, the unlocking mechanism comprises a motor, a driving gear and a driving block, the driving block is provided with a sawtooth section matched with the driving gear, and the motor is connected with the motor. The limiting plate is provided with an abutting end, the abutting end is located in the sliding direction of the driving block, and when the motor drives the driving block to slide, the driving block abuts against the abutting end to drive the limiting plate to rotate, so that the limiting block is disengaged from abutting against the stop block, and unlocking is achieved. By the adoption of the technical scheme, the sawtooth section matched with the driving gear is locally arranged on the driving block, after unlocking or locking, the driving gear and the sawtooth section are in a separated state, the driving gear and sawteeth are prevented from being clamped when matched, the two reset pieces are arranged to reset the driving block, and therefore the safety of the seat cushion lock is improved. And when the driving gear rotates again, the sawtooth section is meshed with the driving gear again.

Description

Technical Field

[0001] The utility model relates to a seat cushion lock which can lock the seat cushion of a battery vehicle or a motorcycle onto a vehicle body. Background Art

[0002] Motorcycles and electric vehicles are common means of transportation in our daily lives. In order to facilitate users to place items, a storage space for storing items is set under the seat of the motorcycle or electric vehicle. The seat is a cover for the storage space. In order to prevent the items in the storage space from being stolen, a seat lock needs to be set between the seat and the vehicle body. The seat and the seat lock cooperate, and it is not easy to open the seat.

[0003] The applicant previously applied for a Chinese utility model patent with authorization announcement number CN213735318U, which discloses a new type of seat cushion lock, including a mounting seat, an opening for inserting a seat cushion lock tongue at the upper end of the mounting seat, a lock structure cooperating with the seat cushion lock tongue on the mounting seat, and an unlocking mechanism cooperating with the lock structure on the mounting seat. The lock mechanism includes a lock plate and a limit plate, the lock plate is hinged to the front face of the mounting seat through a first hinge axis, the limit plate is hinged to the front face of the mounting seat through a second hinge axis, the first hinge axis is parallel to the second hinge axis, the lock plate is provided with a lock groove at the corresponding opening, and the lock is locked. The plate is provided with a stop block near the limit plate, and the limit plate is provided with a limit block that contacts and cooperates with the stop block when the lock plate is locked. The unlocking mechanism includes a motor, a driving gear and a driving block. The motor is fixedly arranged on the back of the mounting seat, the driving gear is rotatably arranged on the back of the mounting seat, the driving block is slidably arranged on the back of the mounting seat, and a rack that meshes with the driving gear is arranged on the driving block. The contact portion of the driving block extends to the front of the mounting seat and contacts and cooperates with the limit plate. When the motor drives the driving block to move, the contact portion of the driving block drives the limit plate to rotate so that the limit plate is disengaged from the contact with the stop block.

[0004] In the above-mentioned seat lock, the rack is arranged along the length direction of the driving block, and the rack completely covers the driving block, which causes the rack to be easily stuck when cooperating with the driving gear, affecting the automatic unlocking function. Summary of the invention

[0005] The purpose of the utility model: in order to overcome the defects of the prior art, the utility model provides a cushion lock, which is partially provided with a sawtooth segment cooperating with a driving gear on the driving block, and after unlocking or locking, the driving gear and the sawtooth are in a separated state to prevent the driving gear from getting stuck when cooperating with the sawtooth, and two reset parts are provided to reset the driving block so that when it rotates again, the sawtooth segment re-engages with the driving gear.

[0006] The technical solution of the utility model is as follows: a seat cushion lock comprises a mounting plate, a locking mechanism matched with the seat cushion lock tongue and an unlocking mechanism matched with the locking mechanism, the upper end of the mounting plate is provided with a first opening for inserting the seat cushion lock tongue, the locking mechanism comprises a locking plate and a limiting plate, the locking plate and the limiting plate are both hinged on the mounting plate through a hinge shaft, the locking plate is provided with a locking groove at the position corresponding to the first opening, the locking plate is provided with a stop block near the limiting plate, the limiting plate is provided with a limit block that abuts against the stop block when the locking plate is locked, the unlocking mechanism comprises a motor, a driving gear and a driving block, the driving block A sawtooth segment cooperating with the driving gear is provided on the top, and a resistance end is provided on the limit plate, and the resistance end is located in the sliding direction of the driving block. When the motor drives the driving block to slide, the driving block presses the resistance end to drive the limit plate to rotate so that the limit block is disengaged from the resistance with the stop block to achieve unlocking. It also includes a first reset member and a second reset member, and the two ends of the first reset member are respectively connected to the lock plate and the limit plate, and the second reset member is connected to the driving block. After the driving gear is separated from the sawtooth segment under the drive of the motor, the driving block slides under the action of the first reset member or the second reset member, and the driving gear re-engages with the sawtooth segment.

[0007] By adopting the above technical scheme, the position of the first opening is taken as the upper position in this article, and the lock tongue of the seat cushion can be inserted into the lock groove of the lock plate from the first opening. As the lock tongue is pressed downward, the lock groove of the lock plate can be driven to rotate downward, and the stop block of the lock plate can rotate downward. When the lock plate is rotated to a certain angle, the limit plate on the limit plate and the stop block of the lock plate are in conflict and cooperate, and the limit plate can limit the stop block from rotating upward. At this time, the side wall of the lock groove can resist the lock tongue, and the lock tongue cannot be separated from the lock groove, thereby locking the seat cushion; when unlocking is required, the operation of the motor can be automatically controlled by remote control, and the motor then drives the driving gear to rotate, and the driving gear meshes with the serrated segment of the driving block. The second reset member drives the driving block to slide to the right, so that the driving block is also meshed with the sawtooth segment again.

[0008] Further configuration of the utility model: a mounting box is connected to the back of the mounting plate, a slide groove is provided on the front of the mounting box, the drive block is slidably arranged in the slide groove, the motor is arranged in the mounting box, the drive gear extends into the slide groove and meshes with the sawtooth segment, a second opening for the drive block to enter and exit is provided on the right side of the slide groove, the abutment end extends to the right side of the slide groove, and when the drive block slides out of the second opening, the limit plate is driven to rotate to achieve unlocking.

[0009] The above further arrangement facilitates assembly and disassembly. The mounting box is connected to the mounting plate by screws. When the driving block slides out of the slide groove to the right, it contacts the abutment end and drives the abutment end to move, so that the limit plate rotates around the hinge axis to achieve unlocking. The structure is simple and the operation is convenient.

[0010] The utility model is further configured as follows: a first arc-shaped guide groove is provided on the front side of the installation box, a slider is slidably provided in the first arc-shaped guide groove, the slider moves synchronously with the lock plate, a magnet or a Hall switch is provided on the back side of the slider, and a Hall switch or a magnet is correspondingly provided on the sliding track of the slider in the installation box, and when the magnet corresponds to the Hall switch, the motor stops working.

[0011] By further adopting the above-mentioned configuration, the structure is stable when the slider slides. When it is automatically unlocked, it is unlocked by remote control, the motor switch works, the driving block is driven to slide, the limit plate and the lock plate rotate on the mounting plate, the slider slides in the first arc guide groove, and when the magnet is opposite to the Hall switch, the Hall switch has a feedback signal. The signal can be used to determine the position of the motor or the position of the lock plate, thereby determining the unlocking or locking time, and the signal can be used to control the working time of the motor to prevent the motor from rotating all the time.

[0012] The utility model is further configured as follows: a positioning groove is further provided on the front of the installation box, the positioning groove is located on the left side of the slide groove and is communicated with the slide groove, the second reset member is configured by a reset spring, a connecting column is provided on the left side of the driving block, one end of the reset spring abuts against the side wall of the positioning groove, and the other end is sleeved on the connecting column.

[0013] With the above further arrangement, the reset spring has a stable structure and can better reset the drive block.

[0014] The utility model is further configured as follows: the first reset member is configured by a tension spring, a first hook is provided on the lock plate, a second hook is provided on the limit plate, one end of the tension spring is hooked on the first hook, and the other end is hooked on the second hook.

[0015] With the above further configuration, after unlocking, the tension spring can drive the limit plate and the lock plate to reset, and the limit plate can simultaneously drive the drive block to slide when resetting, which has a simple structure and is easy to install.

[0016] The utility model is further configured as follows: a circuit board is arranged in the installation box, the motor is electrically connected to the circuit board, a Hall switch is arranged on the circuit board, and a magnet matching the Hall switch is arranged on the slider.

[0017] The above further configuration is adopted to facilitate the installation of the Hall switch, and at the same time, it can be arranged in the installation box to play a role of waterproof and dustproof.

[0018] The utility model is further configured as follows: a second arc guide groove is provided on the mounting plate corresponding to the first arc guide groove, a connecting rod extending backwards is provided on the lock plate, a connecting hole is provided on the slider, and the connecting rod is inserted into the connecting hole to realize synchronous movement of the lock plate and the slider.

[0019] The above further configuration is adopted, the structure is simple and the installation is convenient.

[0020] The utility model is further configured as follows: the unlocking mechanism also includes an integrally arranged toothed disc and a driven gear, a first rotating shaft and a second rotating shaft parallel to each other are arranged in the installation box, the output shaft of the motor is perpendicular to the second rotating shaft, the toothed disc and the driven gear are arranged on the second rotating shaft, the driving gear is arranged on the first rotating shaft, a driving gear is arranged on the output shaft of the motor, the driving gear is meshed with the toothed disc, and the driven gear drives the driving gear to rotate through a reduction gear group.

[0021] By further adopting the above-mentioned setting, the motor is laid flat, which can reduce the installation space and has a reasonable layout. The reduction gear set is composed of a plurality of transmission gears, which has a certain reduction effect and stable transmission.

[0022] The utility model is further configured as follows: a first cavity, a second cavity and a third cavity are provided in the installation box, the first cavity is arranged above the second cavity, the second cavity and the third cavity are arranged side by side, and the second cavity and the third cavity are communicated with each other, the circuit board is arranged in the first cavity, the motor is arranged in the second cavity, the output shaft of the motor extends into the third cavity, the reduction gear set and the driving gear are both arranged in the third cavity, and the slide groove is communicated with the third cavity.

[0023] By adopting the above-mentioned further arrangement, the structural layout is reasonable, so that the installation box is small in size and the occupied space is reduced.

[0024] The utility model is further configured as follows: the limit plate is further provided with a pull wire installation portion for connecting an external pull wire, and the installation plate is provided with a through hole for the external pull wire to pass through.

[0025] By further adopting the above-mentioned arrangement, the pull wire installation part of the limit plate can be used to connect an external pull rope, and the pull rope can drive the limit plate to rotate, so that the limit block is disengaged from the interference with the stop block, thereby realizing manual unlocking, and the pull rope can be guided from the through hole to extend out of the mounting seat, with a simple structure and reasonable design. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the installation of a drive block according to a specific embodiment of the utility model;

[0028] Figure 3 It is a schematic diagram of a driving block and a driving gear of a specific embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of a locking mechanism of a specific embodiment of the utility model;

[0030] Figure 5 It is a front view schematic diagram of the installation box of a specific embodiment of the utility model;

[0031] Figure 6 It is a schematic diagram of the front side of the mounting plate of a specific embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of the back side of the mounting plate of a specific embodiment of the utility model;

[0033] Figure 8 It is a schematic diagram of the back side of the installation box of a specific embodiment of the utility model;

[0034] Fig. 9 It is a schematic diagram of an unlocking mechanism of a specific embodiment of the utility model;

[0035] Fig.10 It is a schematic diagram of a lock plate of a specific embodiment of the utility model;

[0036] Fig.11 It is a schematic diagram of a limiting plate according to a specific embodiment of the utility model. DETAILED DESCRIPTION

[0037] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] like Figure 1-11As shown, a seat lock comprises a mounting plate 1, a locking mechanism matched with the seat lock tongue and an unlocking mechanism matched with the locking mechanism, the upper end of the mounting plate 1 is provided with a first opening 11 for inserting the seat lock tongue, the locking mechanism comprises a locking plate 2 and a limiting plate 3, the locking plate 2 and the limiting plate 3 are both hinged on the mounting plate 1 through a hinge shaft, the locking plate 2 is provided with a locking groove 21 corresponding to the first opening 11, the locking plate 2 is provided with a stop block 22 near the limiting plate 3, the limiting plate 3 is provided with a limiting block 31 that contacts and cooperates with the stop block 22 when the locking plate 2 is locked, the unlocking mechanism comprises a motor 41, a driving gear 42 and a driving block 43, the driving block 43 A sawtooth segment 431 is provided on the limit plate 3 to cooperate with the driving gear 42, and a contact end 32 is provided on the limit plate 3. The contact end 32 is located in the sliding direction of the driving block 43. When the motor 41 drives the driving block 43 to slide, the driving block 43 presses the contact end 32 to drive the limit plate 3 to rotate so that the limit block 31 is separated from the contact with the stop block 22 to achieve unlocking. It also includes a first reset member 5 and a second reset member 6. The two ends of the first reset member 5 are respectively connected to the lock plate 2 and the limit plate 3, and the second reset member 6 is connected to the driving block 43. After the driving gear 42 is separated from the sawtooth segment 431 under the drive of the motor 41, the driving block 43 is reset to the first reset member 5 or the second reset member 6. The locking plate 42 is engaged with the toothed section 431 and the locking cam 42 is engaged with the toothed section 431. When the locking plate 42 is engaged with the toothed section 431, the locking cam 42 is engaged with the toothed section 432. When the locking plate 42 is engaged with the toothed section 431, the locking cam 42 is engaged with the toothed section 432. When the locking plate 42 is engaged with the toothed section 431, the locking cam 42 is engaged with the toothed section 432. When the locking plate 42 is engaged with the toothed section 432, the locking cam 42 is engaged with the toothed section 432. The second reset member will drive the driving block to slide to the right, so that the driving block is also meshed with the sawtooth segment.

[0042] The back of the mounting plate 1 is connected to the mounting box 7, the front of the mounting box 7 is provided with a slide groove 71, the driving block 43 is slidably arranged in the slide groove 71, the motor 41 is arranged in the mounting box 7, the driving gear 42 extends into the slide groove 71 and meshes with the sawtooth segment 431, the right side of the slide groove 71 is provided with a second opening 711 for the driving block 43 to enter and exit, the abutting end 32 extends to the right side of the slide groove 71, the mounting plate 1 is provided with a notch 14, the abutting end 32 extends through the notch to one side of the driving block, and the right end of the driving block 43 is provided with a pressing block 43 3. When the driving block slides, the pressing block contacts the abutting end 32. A notch is provided on the driving block 43. The serrated section 431 is provided on the inner wall of the notch. The driving gear extends into the notch, so that the driving block is more stable when sliding. When the driving block 43 slides out from the second opening, the limiting plate 3 is driven to rotate to realize unlocking. The disassembly and assembly are convenient. The mounting box 7 is connected to the mounting plate 1 by screws. When the driving block 43 slides out of the slide groove 71 to the right, it contacts the abutting end 32 and drives the abutting end to move, so that the limiting plate 3 rotates around the hinge axis to realize unlocking. The structure is simple and the operation is convenient.

[0043] A first arc-shaped guide groove 72 is provided on the front side of the installation box 7, and a slider 721 is slidably provided in the first arc-shaped guide groove 72. The slider 721 moves synchronously with the lock plate 2, and a magnet 7211 or a Hall switch is provided on the back side of the slider 721. A Hall switch or a magnet is correspondingly provided on the sliding track of the slider 721 in the installation box 7. When the magnet corresponds to the Hall switch, the Hall switch has a feedback signal, and the motor position or the position of the lock plate 2 can be determined by the signal, so that the unlocking or locking time can be determined, and the working time of the motor 41 is controlled by the signal, so that the structure is stable when the slider 721 slides. When it is automatically unlocked, it is unlocked by remote control, the motor switch works, the driving block is driven to slide, the limit plate and the lock plate rotate on the installation plate, the slider slides in the first arc-shaped guide groove, and when the magnet is opposite to the Hall switch, the motor can stop working immediately to prevent the motor from rotating all the time. Specifically, a circuit board 74 is provided in the installation box 7, the motor 41 is electrically connected to the circuit board 74, a Hall switch is provided on the circuit board 74, and a magnet 7211 matching the Hall switch is provided on the slider 721, which is convenient for the installation of the Hall switch, and can be waterproof and dustproof when provided in the installation box. A second arc guide groove 12 is provided on the installation plate 1 at a position corresponding to the first arc guide groove 72, a connecting rod 23 extending backward is provided on the lock plate 2, and a connecting hole is provided on the slider 721, and the connecting rod 23 is inserted in the connecting hole to realize the synchronous movement of the lock plate 2 and the slider 721, which has a simple structure and is easy to install.

[0044] The front of the installation box 7 is also provided with a positioning groove 75, which is located on the left side of the slide groove 71 and communicates with the slide groove 71. The second reset member 6 is provided with a reset spring, and a connecting column 432 is provided on the left side of the drive block 43. One end of the reset spring abuts against the side wall of the positioning groove 75, and the other end is sleeved on the connecting column 432. The reset spring has a stable structure and can better reset the drive block. The first reset member 5 is provided with a tension spring, and a first hook 24 is provided on the lock plate 2, and a second hook 33 is provided on the limit plate 3. One end of the tension spring is hooked on the first hook 24, and the other end is hooked on the second hook 33. After unlocking, the tension spring can drive the limit plate 3 and the lock plate 2 to reset. When resetting, the limit plate 3 can simultaneously drive the drive block 43 to slide. The structure is simple and easy to install. The limit plate 3 is also provided with a pull wire installation portion 34 for connecting an external pull rope, and the installation plate 1 is provided with a through hole 13 for the external pull rope to pass through. The pull wire installation portion of the limit plate 3 can be used to connect the external pull rope, and the pull rope can drive the limit plate 3 to rotate, so that the limit block 31 is disengaged from the interference with the stop block 22, thereby realizing manual unlocking. The pull rope can be guided from the through hole to extend out of the installation plate, with a simple structure and reasonable design.

[0045] The unlocking mechanism also includes an integrally arranged toothed disc 44 and a driven gear 45. A first rotating shaft 76 and a second rotating shaft 77 are provided in parallel in the installation box 7. The output shaft of the motor 41 is perpendicular to the second rotating shaft 77. The toothed disc 44 and the driven gear 45 are arranged on the second rotating shaft 77. The driving gear 42 is arranged on the first rotating shaft 76. A driving gear 411 is provided on the output shaft of the motor 41. The driving gear 411 is meshed with the toothed disc 44. The driven gear 45 drives the driving gear 42 to rotate through the reduction gear set 46. The motor is arranged to lie flat, which can reduce the installation space and has a reasonable layout. The reduction gear set is composed of a plurality of transmission gears, which has a certain deceleration effect and stable transmission. The installation box 7 is provided with a first cavity 78, a second cavity 79 and a third cavity 70. The first cavity 78 is arranged above the second cavity 79. The second cavity 79 and the third cavity 70 are arranged side by side, and the second cavity 79 and the third cavity 70 are communicated with each other. The circuit board 74 is arranged in the first cavity 78, the motor 41 is arranged in the second cavity 79, and the output shaft of the motor 41 extends into the third cavity 70. The reduction gear set 46 and the driving gear 411 are both arranged in the third cavity 70, and the slide groove 71 is communicated with the third cavity 70. The structural layout is reasonable, so that the installation box 7 is small in size and reduces the occupied space.

Claims

1. A seat cushion lock, comprising a mounting plate (1), a locking mechanism cooperating with a seat cushion lock tongue, and an unlocking mechanism cooperating with the locking mechanism, wherein the upper end of the mounting plate (1) is provided with a first opening (11) for inserting the seat cushion lock tongue, the locking mechanism comprises a locking plate (2) and a limiting plate (3), the locking plate (2) and the limiting plate (3) are both hinged to the mounting plate (1) through a hinge shaft, the locking plate (2) is provided with a locking groove (21) at a position corresponding to the first opening (11), the locking plate (2) is provided with a stop block (22) near the limit plate (3), the limit plate (3) is provided with a limit block (31) which abuts against the stop block (22) when the locking plate (2) is locked, the unlocking mechanism comprises a motor (41), a driving gear (42) and a driving block (43), and is characterized in that: The driving block (43) is provided with a sawtooth segment (431) that cooperates with the driving gear (42), and the limiting plate (3) is provided with a contact end (32). The contact end (32) is located in the sliding direction of the driving block (43). When the motor (41) drives the driving block (43) to slide, the driving block (43) presses the contact end (32) to drive the limiting plate (3) to rotate so that the limiting block (31) is separated from the contact with the stop block (22) to achieve unlocking. The driving block (43) also includes a first reset member (5) and a second reset member (6). The first reset member (5) has two ends connected to the lock plate (2) and the limiting plate (3) respectively, and the second reset member (6) is connected to the driving block (43). After the driving gear (42) is separated from the sawtooth segment (431) under the drive of the motor (41), the driving block (43) slides under the action of the first reset member (5) or the second reset member (6), and the driving gear (42) is re-engaged with the sawtooth segment (431).

2. The seat cushion lock according to claim 1, characterized in that: The back of the mounting plate (1) is connected to a mounting box (7), the front of the mounting box (7) is provided with a slide groove (71), the driving block (43) is slidably arranged in the slide groove (71), the motor (41) is arranged in the mounting box (7), the driving gear (42) extends into the slide groove (71) and meshes with the sawtooth segment (431), a second opening (711) for the driving block (43) to enter and exit is provided on the right side of the slide groove (71), the abutment end (32) extends to the right side of the slide groove (71), and when the driving block (43) slides out from the second opening (711), the limiting plate (3) is driven to rotate to achieve unlocking.

3. The seat cushion lock according to claim 2, characterized in that: The front side of the installation box (7) is provided with a first arc-shaped guide groove (72), a slider (721) is slidably arranged in the first arc-shaped guide groove (72), the slider (721) moves synchronously with the lock plate (2), a magnet or a Hall switch is arranged on the back side of the slider (721), and a Hall switch or a magnet is arranged correspondingly on the sliding track of the slider (721) in the installation box (7), and when the magnet corresponds to the Hall switch, the motor (41) stops working.

4. The seat cushion lock according to claim 2 or 3, characterized in that: The front surface of the installation box (7) is further provided with a positioning groove (75), the positioning groove (75) is located on the left side of the slide groove (71) and communicates with the slide groove (71), the second return member (6) is provided with a return spring, and a connecting column (432) is provided on the left side of the driving block (43), one end of the return spring abuts against the side wall of the positioning groove (75), and the other end is sleeved on the connecting column (432).

5. The seat cushion lock according to claim 1, 2 or 3, characterized in that: The first reset member (5) is arranged by a tension spring, the lock plate (2) is provided with a first hook portion (24), the limit plate (3) is provided with a second hook portion (33), one end of the tension spring is hooked on the first hook portion (24), and the other end is hooked on the second hook portion (33).

6. The seat lock according to claim 3, characterized in that: A circuit board (74) is provided in the installation box (7), the motor (41) is electrically connected to the circuit board (74), a Hall switch is provided on the circuit board (74), and a magnet (7211) matching the Hall switch is provided on the slider (721).

7. The seat cushion lock according to claim 3 or 6, characterized in that: A second arc-shaped guide groove (12) is provided on the mounting plate (1) at a position corresponding to the first arc-shaped guide groove (72); a connecting rod (23) extending backward is provided on the locking plate (2); a connecting hole is provided on the sliding block (721); the connecting rod (23) is inserted into the connecting hole to realize synchronous movement of the locking plate (2) and the sliding block (721).

8. The seat lock according to claim 6, characterized in that: The unlocking mechanism further comprises an integrally arranged toothed disc (44) and a driven gear (45); a first rotating shaft (76) and a second rotating shaft (77) are arranged in parallel in the installation box (7); an output shaft of the motor (41) is perpendicular to the second rotating shaft (77); the toothed disc (44) and the driven gear (45) are arranged on the second rotating shaft (77); the driving gear (42) is arranged on the first rotating shaft (76); a driving gear (411) is arranged on the output shaft of the motor (41); the driving gear (411) is meshed with the toothed disc (44); and the driven gear (45) drives the driving gear (42) to rotate via a reduction gear set (46).

9. The seat lock according to claim 8, characterized in that: The installation box (7) is provided with a first cavity (78), a second cavity (79) and a third cavity (70); the first cavity (78) is arranged above the second cavity (79); the second cavity (79) and the third cavity (70) are arranged side by side, and the second cavity (79) and the third cavity (70) are communicated with each other; the circuit board (74) is arranged in the first cavity (78); the motor (41) is arranged in the second cavity (79); the output shaft of the motor (41) extends into the third cavity (70); the reduction gear set (46) and the driving gear (411) are both arranged in the third cavity (70); and the slide groove (71) is communicated with the third cavity (70).

10. The seat cushion lock according to claim 1, 2 or 3, characterized in that: The limiting plate (3) is also provided with a pull cord installation portion (34) for connecting an external pull cord, and the installation plate (1) is provided with a through hole (13) for the external pull cord to pass through.

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