Automobile seat floor lock, backrest dual-purpose lock and assembly method

Abstract

The present invention discloses a dual-purpose lock for a car seat floor and backrest and an assembly method, which belongs to the technical field of car lock body parts, and comprises a lower shell body, wherein a limiting component is arranged at the upper end of the lower shell body, and a protective component is arranged at the limiting component and the lower end of the lower shell body, and an installation component is arranged on the limiting component. By arranging the limiting component and the protective component, the effective limiting times and service life of the lock can be greatly improved, and excellent performance can be maintained even in the case of high-frequency adjustment of the seat position. Specifically, the dual-purpose lock adopts an adjusting spring and a telescopic rod mechanism to enhance the stability and response speed of the lock body, and at the same time, a protective cover and a buffer block are arranged to reduce the damage to the lock body caused by external impact, and protect the metal surface from scratches and other physical damages, thereby improving the aesthetics and safety of the product. In addition, the installation component also facilitates users to adjust the seat position more conveniently without affecting the locking effect.

Description

Technical Field

[0001] The invention relates to the field of automobile lock body parts, in particular to an automobile seat floor lock, a backrest dual-purpose lock and an assembly method. Background Art

[0002] In the field of car seat design, floor locks and backrest locks are key components to ensure passenger safety and comfort. Although traditional mechanical lock designs can meet basic locking and unlocking needs, they have certain limitations in terms of flexibility, durability and user experience. Especially for seats that need to be adjusted frequently, traditional locks may not provide enough limit times, and long-term use can easily cause wear or damage to the lock surface.

[0003] The current problems in the market are mainly reflected in two aspects:

[0004] 1. Limited position limiting capability: Traditional mechanical locks usually rely on springs or ratchet mechanisms to achieve position limiting functions. However, these mechanical structures may become fatigued or fail after multiple operations, thus limiting the number of effective position limiting functions they can provide. This is a significant problem for users who often need to adjust the seat position, because it means that the seat cannot always be kept in an ideal state of use.

[0005] 2. The surface of the lock body is vulnerable to damage: Due to the lack of effective protection measures, the metal surface of traditional locks is easily scratched or otherwise physically damaged during daily use, such as due to improper operation or external impact. This damage not only affects the appearance, but may also cause the performance of the lock to deteriorate and even cause safety hazards.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides a car seat floor lock, a backrest dual-purpose lock and an assembly method, which have the advantages of the above-mentioned technical problems and thus solve the problems in the prior art.

[0009] (II) Technical solution

[0010] In order to achieve the advantages of the above technical problems, the specific technical solutions adopted by the present invention are as follows:

[0011] A dual-purpose lock for a car seat floor and backrest, comprising a lower shell, a limit assembly is arranged at the upper end of the lower shell, a protective assembly is arranged at the limit assembly and the lower end of the lower shell, a mounting assembly is arranged on the limit assembly, the limit assembly comprises an upper shell, the upper shell is fixedly arranged at the upper end of the lower shell by bolts, mounting holes are symmetrically opened on the upper shell and the lower shell, a rotating column is arranged inside the mounting hole, a lock body 1 and a lock body 2 are arranged on the rotating column, and an adjustment spring is arranged at one end of the lock body 1 and the lock body 2.

[0012] Furthermore, in order to ensure the limiting effect of the limiting member, one end of the adjusting spring contacts the inner wall of the upper shell, a limiting portion is provided on the lock body, a limiting member is provided inside the limiting portion, and limiting openings 1 and 2 are provided on the lower shell and the upper shell.

[0013] Furthermore, in order to ensure multiple limiting effects, a plurality of telescopic rods are fixedly arranged at the upper end of the lower shell body, and the telescopic rods are arranged around the limiting opening, a limiting spring is arranged at the movable end of the telescopic rod, a limiting block is arranged at one end of the limiting spring and the telescopic rod, and the limiting block is in contact with the limiting member.

[0014] Furthermore, in order to ensure the protective effect of the lock body, the protective component includes a protective cover, which is respectively arranged on the outside of the lock body one and the lock body two, and the protective cover is adapted to the lock body one and the lock body two, and a protrusion is arranged at one end of the protective cover, the adjusting spring is arranged on the outer wall of the protrusion, and one end of the adjusting spring is in contact with the protective cover.

[0015] Furthermore, in order to ensure the protective effect, a protective pad is provided on one side of the second limiting opening, the protective pad is connected to the upper shell, and one side of the protective pad is in contact with the limiting member.

[0016] Furthermore, in order to ensure the protective effect, a protective mounting plate is provided at one end of the lower shell, and the protective mounting plate is provided at one end of the rotating column. A groove is provided on the protective mounting plate, and a buffer block is provided inside the groove, and the buffer block is in contact with the limiting member.

[0017] Furthermore, in order to ensure the supporting effect of the rotating column, the installation assembly includes an adjustment cavity, which is opened inside the rotating column, and an adjustment block is embedded in the outside of the rotating column. A bidirectional screw rod 1 is fixedly provided at one end of the adjustment block, and one end of the bidirectional screw rod 1 extends into the interior of the adjustment cavity and is connected to the inner wall of the adjustment cavity.

[0018] Furthermore, in order to ensure the adjustment effect, the bidirectional screw rod 1 is located inside the adjustment chamber and is provided with a driving gear, the driving gear is meshingly connected with a driven gear rod 1, one end of the driven gear rod 1 is connected to the inner wall of the adjustment chamber, the driven gear rod 1 is meshingly connected with a plurality of driven gear rods 2, a bidirectional screw rod 2 is provided on the driven gear rod 2, and both ends of the bidirectional screw rod 2 are connected to the inner wall of the adjustment chamber, and the middle parts of the bidirectional screw rod 1 and the bidirectional screw rod 2 are arranged on the inner wall of the adjustment chamber through a fixed seat.

[0019] Furthermore, in order to ensure the guiding effect, a moving block is threadedly connected to the bidirectional screw rod 1 and the bidirectional screw rod 2, and an adjusting plate is connected to the moving block through a rotating shaft. A limiting seat is set at one end of the adjusting plate through the rotating shaft, and a plurality of adjusting ports are opened on the rotating column. A protective block is set on one side of the limiting seat, and a plurality of fixing ports are opened on the protective sleeve, and the protective block contacts the fixing port by passing through the adjusting port.

[0020] The present application also provides a method for assembling the above-mentioned dual-purpose lock for a car seat floor and backrest, comprising the following steps:

[0021] S1. Assemble the protection assembly: Fix the protection mounting plate to one end of the lower shell, with the groove facing the correct direction, and put the buffer block into the groove to ensure a tight fit.

[0022] S2. Assemble the limit assembly: fix the telescopic rod to the upper end of the lower shell, arrange it around the limit opening 1, install the limit spring at the movable end of the telescopic rod, install the limit block at the other end, place the upper shell on the lower shell, align the mounting holes, fix it with bolts, install the rotating column in the mounting hole to ensure stable rotation, install lock body 1 and lock body 2 on the rotating column, install the adjustment spring at one end of lock body 1 and lock body 2, and one end contacts the inner wall of the upper shell, install the limit part on lock body 1, and install the limit part inside so that it can move and contact the limit block, and open limit opening 1 and limit opening 2 on the lower shell and the upper shell.

[0023] S3. Assemble the protective cover and protective pad: put the protective cover on the outside of lock body 1 and lock body 2, put the adjusting spring on the outside of the protrusion of the protective cover, one end of which contacts the protective cover, install the protective pad on one side of the limit opening 2, connect the upper shell, and one side contacts the limit part.

[0024] S4. Assemble the installation components: open an adjustment cavity in the rotating column, embed the adjustment block on the outside of the rotating column, fix one end of the bidirectional screw on the adjustment block, and extend the other end into the adjustment cavity and connect to the inner wall; install the driving gear on the bidirectional screw.

[0025] S5. Install the driven gear 1 in the adjustment cavity to mesh with the driving gear. Install multiple driven gears 2 on the driven gear 1. Install two-way screw rods 2 on the driven gear 2. Connect the two ends to the inner wall. Fix the middle of the two-way screw rods 1 and 2 to the inner wall with a fixing seat.

[0026] S6, threadedly connect the moving block to the bidirectional screw rod 1 and the bidirectional screw rod 2, and the rotating shaft connects the adjusting plate to the moving block; the rotating shaft is provided with a limit seat at one end of the adjusting plate.

[0027] S7. Open multiple adjustment ports on the rotating column, install the protection block on one side of the limit seat, open multiple fixing ports on the protective sleeve, and penetrate the adjustment ports to make the protection block contact with the fixing ports.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) By setting the limit component and the protective component, the effective limit times and service life of the lock can be greatly improved, and excellent performance can be maintained even when the seat position is adjusted frequently. Specifically, the dual-purpose lock adopts an adjustment spring and a telescopic rod mechanism to enhance the stability and response speed of the lock body. At the same time, the protective cover and the buffer block are provided to reduce the damage to the lock body caused by external impact, and protect the metal surface from scratches and other physical damage, thereby improving the aesthetics and safety of the product. In addition, the installation component also facilitates users to adjust the seat position more conveniently without affecting the locking effect, which improves the user experience as a whole and extends the service life of the lock.

[0031] (2) By setting up the installation components, multi-dimensional adjustment can be achieved in a small space. The two-way screw 1 and the two-way screw 1 cooperate with the driving gear, the driven gear 1, and the driven gear 2 to achieve fine position adjustment, ensuring that the lock body can accurately adapt to the installation requirements of different models. At the same time, the moving block and the adjustment plate cooperate with each other, which not only enhances the structural stability, but also simplifies the final fixing steps. In addition, multiple adjustment ports and fixing ports facilitate quick alignment and locking, greatly shortening the installation time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 these drawings without paying creative work.

[0033] Figure 1 The invention is a structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention. Figure 1 ;

[0034] Figure 2 The invention is a structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention. Figure 2 ;

[0035] Figure 3 This is an exploded view of the structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention;

[0036] Figure 4 It is an exploded view of the limit assembly structure of a floor lock and a backrest dual-purpose lock for a car seat according to an embodiment of the present invention;

[0037] Figure 5 It is a partial structural diagram of a limit assembly of a floor lock and a backrest dual-purpose lock for a car seat according to an embodiment of the present invention;

[0038] Figure 6 It is an exploded view of the protective component structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention;

[0039] Figure 7 It is a bottom view of the partial structure of a protective assembly of a floor lock and a backrest dual-purpose lock for a car seat according to an embodiment of the present invention;

[0040] Figure 8 It is a side sectional view of the mounting assembly structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention;

[0041] Fig. 9 This is an exploded view of the installation assembly structure of a car seat floor lock and backrest dual-purpose lock according to an embodiment of the present invention;

[0042] Fig.10 The present invention is a partial structural diagram of an installation assembly of a car seat floor lock and a backrest dual-purpose lock according to an embodiment of the present invention.

[0043] In the figure:

[0044] 1. Lower shell; 2. Limiting assembly; 201. Upper shell; 202. Mounting hole; 203. Rotating column; 204. Lock body 1; 205. Lock body 2; 206. Adjusting spring; 207. Limiting part; 208. Telescopic rod; 209. Limiting spring; 210. Limiting block; 3. Protective assembly; 301. Protective cover; 302. Protrusion; 303. Protective pad; 304. Protective mounting plate; 305. Buffer block ; 4. Installation components; 401. Adjustment chamber; 402. Bidirectional screw one; 403. Driving gear; 404. Driven gear one; 405. Driven gear two; 406. Bidirectional screw two; 407. Moving block; 408. Adjustment plate; 409. Limit seat; 410. Protective block; 411. Adjustment block; 5. Limit member; 6. Limit opening one; 7. Limit opening two; 8. Groove; 9. Fixed opening; 10. Adjustment opening. DETAILED DESCRIPTION

[0045] To further illustrate the technical solution of the present application, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the implementation methods. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the implementation methods. With reference to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0046] like Figure 1 - Fig.10 As shown, the present invention provides a technical solution: a car seat floor lock and backrest dual-purpose lock, comprising a lower shell 1, a limit assembly 2 is arranged at the upper end of the lower shell 1, a protection assembly 3 is arranged at the lower end of the limit assembly 2 and the lower shell 1, and a mounting assembly 4 is arranged on the limit assembly 2;

[0047] The limit assembly 2 includes an upper shell 201, which is fixed to the upper end of the lower shell 1 by bolts. The upper shell 201 and the lower shell 1 are symmetrically provided with mounting holes 202. A rotating column 203 is provided inside the mounting hole 202. A lock body 1 204 and a lock body 2 205 are provided on the rotating column 203. One end of the lock body 1 204 and the lock body 2 205 is provided with an adjusting spring 206. One end of the adjusting spring 206 contacts the inner wall of the upper shell 201. The lock body 1 204 and the lock body 2 205 are provided with an adjusting spring 206. 04 is provided with a limiting portion 207, a limiting member 5 is provided inside the limiting portion 207, a limiting opening 1 6 and a limiting opening 2 7 are provided on the lower shell 1 and the upper shell 201, a plurality of telescopic rods 208 are fixedly provided at the upper end of the lower shell 1, and the telescopic rods 208 are arranged around the limiting opening 1 6, a limiting spring 209 is provided at the movable end of the telescopic rod 208, a limiting block 210 is provided at one end of the limiting spring 209 and the telescopic rod 208, and the limiting block 210 is in contact with the limiting member 5;

[0048] The protection component 3 includes a protection sleeve 301, which is respectively arranged on the outside of the lock body 1 204 and the lock body 2 205, and the protection sleeve 301 is adapted to the lock body 1 204 and the lock body 2 205. A protrusion 302 is arranged at one end of the protection sleeve 301, and the adjusting spring 206 is sleeved on the outer wall of the protrusion 302, and one end of the adjusting spring 206 is in contact with the protection sleeve 301. A protection pad 303 is arranged on one side of the limiting opening 2 7, and the protection pad 303 is connected to the upper shell 201, and one side of the protection pad 303 is in contact with the limiting member 5. A protection mounting plate 304 is arranged at one end of the lower shell 1, and the protection mounting plate 304 is arranged at one end of the rotating column 203. A groove 8 is arranged on the protection mounting plate 304, and a buffer block 305 is arranged inside the groove 8, and the buffer block 305 is in contact with the limiting member 5.

[0049] The protective sleeve 301 , the protective pad 303 , and the buffer block 305 are all made of rubber material.

[0050] Specifically, the lock body 1 204 and the lock body 2 205 are installed between the upper shell 201 and the lower shell 1 through the rotating column 203, and the two can rotate on the rotating column 203. The adjustment spring 206 is located at one end of the lock body 1 204 and the lock body 2 205, and one end thereof abuts against the inner wall of the upper shell 201 to provide a force that makes the lock body tend to remain in a certain position. The limiting part 207 is arranged on the lock body 1 204, and a movable limiting part 5 is arranged inside. The telescopic rod 208 surrounds the limiting opening 6. The arrangement is such that each telescopic rod 208 is equipped with a telescopic limit block 210, which is pushed by the limit spring 209 and contacts the limit member 5. When the user needs to adjust the position of the seat (for example, sliding forward and backward or the backrest angle), this action will be transmitted to the lock body 1 204 or the lock body 2 205, and the operation causes the lock body 1 204 or the lock body 2 205 to rotate around the rotating column 203. At this time, the adjustment spring 206 will be compressed or stretched to provide resistance to the movement of the lock body, ensuring Once the operating force is released, the lock body will return to a stable position. If the seat is sliding, the rotation of the lock body will cause the limiter 5 to disengage from the limiter opening 1 6 or the limiter opening 2 7, allowing the lower shell 1 to move relative to the upper shell 201, that is, the seat floor moves relative to the seat frame. For the adjustment of the backrest angle, a similar process will occur, but may involve different limiters or mechanisms to unlock the connection points of the backrest. During the adjustment process, the limiter block 210 on the telescopic rod 208 always tries to press the limiter 5 into the limiter opening 1 6 or the limiter opening 2 7 due to the action of the limiter spring 209, so as to be ready to lock the new position at any time. Once the desired position is reached and the operating force is released, the limiter 5 will enter the nearest limiter opening 1 6 and the limiter opening 2 7 under the pressure of the limiter block 210, thereby fixing the new position of the seat. The telescopic rod 208 and the limiter spring 209 ensure that even if there is a slight vibration, the limiter 5 can be firmly maintained in the limiter opening 1 6 and the limiter opening 2 7, ensuring the safety and stability of the seat.

[0051] The protective sleeve 301 is respectively arranged on the outside of the lock body 1 204 and the lock body 2 205, mainly to protect the lock body from damage by the external environment. At the same time, since it is adapted to the lock body, it also ensures that the function of the lock body is not affected. The function of the adjustment spring 206: the adjustment spring 206 is sleeved on the outer wall of the protrusion 302, and one end contacts the protective sleeve 301, which means that when the lock body is subjected to external force, the adjustment spring 206 can absorb part of the impact energy by compression or extension, thereby reducing the impact on the internal structure of the lock body. This design helps to improve the durability and reliability of the entire lock system. The protective pad 303 is installed on the upper shell The protective mounting plate 304 is located at one end of the lower shell 1 and surrounds one end of the rotating column 203. It has an integral groove 8 on it, in which a buffer block 305 is arranged, which contacts the limit member 5. When the limit member 5 moves to a certain position, it presses the buffer block 305, and absorbs the impact force generated by the movement through the elastic deformation of the buffer block 305 to prevent damage caused by hard collision.

[0052] like Figure 1 - Fig.10 As shown, the mounting assembly 4 includes an adjusting cavity 401, which is opened inside the rotating column 203, and an adjusting block 411 is embedded outside the rotating column 203, and an adjusting groove in a hexagonal shape is opened on the upper end of the adjusting block 411, and a bidirectional screw 402 is fixedly set at one end of the adjusting block 411, and one end of the bidirectional screw 402 extends to the inside of the adjusting cavity 401 and is connected to the inner wall of the adjusting cavity 401, and the bidirectional screw 402 is located inside the adjusting cavity 401 and is provided with a driving gear 403, and the driving gear 403 is meshedly connected with a driven gear 404, and one end of the driven gear 404 is connected to the inner wall of the adjusting cavity 401, and the driven gear 404 is meshedly connected with three driven gears 402. 5. A bidirectional screw rod 2 406 is provided on the driven gear 2 405, and both ends of the bidirectional screw rod 2 406 are connected to the inner wall of the adjusting cavity 401, the bidirectional screw rod 1 402 and the middle part of the bidirectional screw rod 2 406 are provided on the inner wall of the adjusting cavity 401 through a fixed seat, a moving block 407 is threadedly connected on the bidirectional screw rod 1 402 and the bidirectional screw rod 2 406, an adjusting plate 408 is connected to the moving block 407 through a rotating shaft, a limiting seat 409 is provided at one end of the adjusting plate 408 through the rotating shaft, a plurality of adjusting ports 10 are provided on the rotating column 203, a protective block 410 is provided on one side of the limiting seat 409, a plurality of fixing ports 9 are provided on the protective sleeve 301, and the protective block 410 contacts the fixing port 9 by penetrating the adjusting port 10.

[0053] Specifically, when adjustment is required, the operator will manually rotate the adjustment block 411. The adjustment block 411 is fixedly connected to the bidirectional screw rod 1 402, so its rotation will cause the bidirectional screw rod 1 402 to rotate. As the bidirectional screw rod 1 402 rotates, the driving gear 403 arranged on it also starts to rotate. The driving gear 403 is meshed with the driven gear 1 404, which causes the driven gear 1 404 to rotate as well. The driven gear 1 404 is in turn meshed with a plurality of driven gears 2 405, thus achieving the transmission of power in different directions. Each driven gear 2 405 is connected to a bidirectional screw rod 2 406. Since these gears and screw rods are arranged parallel to each other and driven by the same driving gear 403, they will rotate synchronously at the same speed, which means that all components connected to the bidirectional screw rod 2 406 will be subject to the same driving force. Both the bidirectional screw rod 1 402 and the bidirectional screw rod 2 406 have threaded movable blocks 407. When the screws rotate, The moving block 407 will move axially on the screw rod, and this movement is bidirectional, that is, according to the direction of rotation of the screw rod, the moving block 407 can move left or right, and the moving block 407 is connected to the adjusting plate 408 through the rotating shaft. As the moving block 407 moves, the position of the adjusting plate 408 will also change. A limiting seat 409 is provided at one end of the adjusting plate 408, which can extend out of the rotating column 203 through the adjusting port 10 and finally contact with the fixing port 9 on the protective sleeve 301, so as to change the relative position between the two, thereby ensuring the supporting effect.

[0054] like Figure 1 - Fig.10 As shown, the embodiment of the present application discloses a method for assembling the above-mentioned dual-purpose lock for a car seat floor lock and a backrest lock, comprising the following steps:

[0055] S1. Assemble the protection component 3: Fix the protection mounting plate 304 to one end of the lower shell 1, with the groove 8 facing correctly, and put the buffer block 305 into the groove 8 to ensure a tight fit.

[0056] S2. Assemble the limiting component 2: fix the telescopic rod 208 to the upper end of the lower shell 1, arrange it around the limiting opening 6, install the limiting spring 209 at the movable end of the telescopic rod 208, and install the limiting block 210 at the other end, place the upper shell 201 on the lower shell 1, align the mounting holes 202, fix it with bolts, install the rotating column 203 in the mounting hole 202 to ensure stable rotation, install the lock body 1 204 and the lock body 2 205 on the rotating column 203, install the adjusting spring 206 at one end of the lock body 1 204 and the lock body 2 205, and one end contacts the inner wall of the upper shell 201, install the limiting part 207 on the lock body 1 204, and install the limiting member 5 inside so that it can move and contact the limiting block 210, and open the limiting opening 1 6 and the limiting opening 2 7 on the lower shell 1 and the upper shell 201.

[0057] S3. Assemble the protective sleeve 301 and the protective pad 303: Put the protective sleeve 301 on the outside of the lock body 1 204 and the lock body 2 205, put the adjusting spring 206 on the outside of the protective sleeve 301 and the protrusion 302, with one end contacting the protective sleeve 301, install the protective pad 303 on one side of the limiting opening 2 7, connect the upper shell 201, and one side contacting the limiting member 5.

[0058] S4, assemble and install component 4: open an adjustment cavity 401 in the rotating column 203, embed the adjustment block 411 outside the rotating column 203, fix one end of the bidirectional screw 402 on the adjustment block 411, and extend the other end into the adjustment cavity 401 and connect to the inner wall, and install the driving gear 403 on the bidirectional screw 402.

[0059] S5. Install the driven gear 1 404 in the adjustment cavity 401 to mesh with the driving gear 403. Install multiple driven gears 2 405 on the driven gear 1 404. Install a bidirectional screw 2 406 on the driven gear 2 405. Connect the two ends to the inner wall. Fix the middle of the bidirectional screw 1 402 and the bidirectional screw 2 406 to the inner wall with a fixing seat.

[0060] S6. Thread the moving block 407 onto the bidirectional screw rod 1 402 and the bidirectional screw rod 2 406 , connect the adjusting plate 408 to the moving block 407 via a rotating shaft, and set a limit seat 409 at one end of the adjusting plate 408 via the rotating shaft.

[0061] S7, open multiple adjustment openings 10 on the rotating column 203, install the protection block 410 on one side of the limiting seat 409, open multiple fixing openings 9 on the protection sleeve 301, and penetrate the adjustment openings 10 to make the protection block 410 contact with the fixing openings 9.

[0062] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A car seat floor lock and backrest dual-purpose lock, characterized in that: It comprises a lower shell (1), a limit assembly (2) is arranged at the upper end of the lower shell (1), a protection assembly (3) is arranged between the limit assembly (2) and the lower end of the lower shell (1), and a mounting assembly (4) is arranged on the limit assembly (2); The limit assembly (2) comprises an upper shell (201), the upper shell (201) being fixedly arranged on the upper end of the lower shell (1) by means of bolts, the upper shell (201) and the lower shell (1) being symmetrically provided with mounting holes (202), a rotating column (203) being arranged inside the mounting hole (202), a lock body 1 (204) and a lock body 2 (205) being arranged on the rotating column (203), and an adjusting spring (206) being arranged at one end of the lock body 1 (204) and the lock body 2 (205).

2. The dual-purpose car seat floor lock and backrest lock according to claim 1, characterized in that: One end of the adjustment spring (206) contacts the inner wall of the upper shell (201); a limiting portion (207) is provided on the lock body (204); a limiting member (5) is provided inside the limiting portion (207); and a limiting opening (6) and a limiting opening (7) are provided on the lower shell (1) and the upper shell (201).

3. The dual-purpose car seat floor lock and backrest lock according to claim 2, characterized in that: A plurality of telescopic rods (208) are fixedly arranged at the upper end of the lower shell (1), and the telescopic rods (208) are arranged around the limiting opening (6); a limiting spring (209) is arranged at the movable end of the telescopic rod (208); a limiting block (210) is arranged at one end of the limiting spring (209) and the telescopic rod (208), and the limiting block (210) is in contact with the limiting member (5).

4. The dual-purpose car seat floor lock and backrest lock according to claim 3, characterized in that: The protection component (3) comprises a protection sleeve (301), the protection sleeve (301) is respectively arranged on the outside of the lock body 1 (204) and the lock body 2 (205), and the protection sleeve (301) is adapted to the lock body 1 (204) and the lock body 2 (205), one end of the protection sleeve (301) is provided with a protrusion (302), the adjustment spring (206) is sleeved on the outer wall of the protrusion (302), and one end of the adjustment spring (206) is in contact with the protection sleeve (301).

5. The dual-purpose car seat floor lock and backrest lock according to claim 4, characterized in that: A protection pad (303) is provided on one side of the second limiting opening (7); the protection pad (303) is connected to the upper shell (201), and one side of the protection pad (303) is in contact with the limiting member (5).

6. The dual-purpose car seat floor lock and backrest lock according to claim 5, characterized in that: A protective mounting plate (304) is provided at one end of the lower shell (1), and the protective mounting plate (304) is arranged at one end of the rotating column (203). A groove (8) is provided on the protective mounting plate (304), and a buffer block (305) is provided inside the groove (8), and the buffer block (305) is in contact with the limiting member (5).

7. The dual-purpose car seat floor lock and backrest lock according to claim 6, characterized in that: The mounting assembly (4) comprises an adjustment cavity (401), wherein the adjustment cavity (401) is opened inside the rotating column (203), an adjustment block (411) is embedded outside the rotating column (203), a bidirectional screw rod (402) is fixedly arranged at one end of the adjustment block (411), and one end of the bidirectional screw rod (402) extends into the interior of the adjustment cavity (401) and is connected to the inner wall of the adjustment cavity (401).

8. The dual-purpose car seat floor lock and backrest lock according to claim 7, characterized in that: The bidirectional screw rod 1 (402) is located inside the regulating chamber (401) and is provided with a driving gear (403). The driving gear (403) is meshedly connected with a driven gear rod 1 (404). One end of the driven gear rod 1 (404) is connected to the inner wall of the regulating chamber (401). The driven gear rod 1 (404) is meshedly connected with a plurality of driven gear rods 2 (405). The driven gear rods 2 (405) are provided with bidirectional screw rods 2 (406), and both ends of the bidirectional screw rods 2 (406) are connected to the inner wall of the regulating chamber (401). The middle parts of the bidirectional screw rods 1 (402) and 2 (406) are arranged on the inner wall of the regulating chamber (401) via a fixing seat.

9. The dual-purpose car seat floor lock and backrest lock according to claim 8, characterized in that: The bidirectional screw rod 1 (402) and the bidirectional screw rod 2 (406) are threadedly connected with a moving block (407), and the moving block (407) is connected with an adjustment plate (408) via a rotating shaft. One end of the adjustment plate (408) is provided with a limit seat (409) via a rotating shaft. The rotating column (203) is provided with a plurality of adjustment openings (10), and a protective block (410) is provided on one side of the limit seat (409). The protective sleeve (301) is provided with a plurality of fixing openings (9), and the protective block (410) contacts the fixing opening (9) by penetrating the adjustment opening (10).

10. An assembly method for a car seat floor lock and a backrest dual-purpose lock, used for a car seat floor lock and a backrest dual-purpose lock as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1. Assemble the protection assembly: Fix the protection mounting plate to one end of the lower shell, with the groove facing the correct direction, and put the buffer block into the groove to ensure a tight fit. S2. Assemble the limit assembly: fix the telescopic rod to the upper end of the lower shell body, arrange it around the limit opening 1, install the limit spring at the movable end of the telescopic rod, install the limit block at the other end, place the upper shell body on the lower shell body, align the mounting holes, fix it with bolts, install the rotating column in the mounting hole to ensure stable rotation, install lock body 1 and lock body 2 on the rotating column, install the adjusting spring at one end of lock body 1 and lock body 2, and one end contacts the inner wall of the upper shell body, install the limit part on lock body 1, and install the limit part inside so that it can move and contact the limit block; open limit opening 1 and limit opening 2 on the lower shell body and the upper shell body. S3. Assemble the protective cover and protective pad: put the protective cover on the outside of lock body 1 and lock body 2, put the adjusting spring on the outside of the protrusion of the protective cover, one end of which contacts the protective cover, install the protective pad on one side of the limit opening 2, connect the upper shell, and one side contacts the limit part. S4. Assemble the installation components: open an adjustment cavity in the rotating column; embed the adjustment block outside the rotating column, fix one end of the bidirectional screw on the adjustment block, and extend the other end into the adjustment cavity and connect to the inner wall; install the driving gear on the bidirectional screw. S5. Install the driven gear 1 in the adjustment cavity to mesh with the driving gear; install multiple driven gears 2 on the driven gear 1, install two-way screw rods 2 on the driven gear 2, connect the two ends to the inner wall, and fix the middle parts of the two-way screw rods 1 and 2 to the inner wall with a fixing seat. S6, threadedly connect the moving block to the bidirectional screw rod 1 and the bidirectional screw rod 2; the rotating shaft connects the adjusting plate to the moving block; and the rotating shaft is provided with a limit seat at one end of the adjusting plate. S7. Open multiple adjustment ports on the rotating column; install a protective block on one side of the limit seat; open multiple fixed ports on the protective sleeve, and penetrate the adjustment ports to make the protective block contact with the fixed ports.

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