A scratch-resistant floor lock

Abstract

This utility model discloses an anti-scratch parking lock, relating to the field of parking lock technology. It includes a housing, a baffle, a damping transmission assembly, and a drive assembly. A first partition plate and a second partition plate are fixedly installed inside the housing, dividing the internal space into a first cavity, a second cavity, and a third cavity arranged sequentially. The damping transmission assembly includes a transmission rod, a transmission gear, and a damping structure. The transmission rod is disposed in the second cavity, with both ends passing through the first and second partition plates respectively and rotatably connected to them. The baffle is disposed in the second cavity, with one end fixedly connected to the transmission rod. The damping structure and the transmission gear are disposed in the third cavity, with the transmission gear fixedly connected to one end of the transmission rod. This design solves the problem that current parking locks easily scratch the vehicle chassis when colliding with a vehicle, thus causing damage.

Description

Technical Field

[0001] This utility model relates to the field of parking space lock technology, specifically to a scratch-resistant parking lock. Background Technology

[0002] With increasingly congested urban traffic and a growing scarcity of parking spaces, parking locks are crucial for securing exclusive parking spots for car owners. However, most parking locks on the market today employ relatively simple mechanical structures and lack anti-scratch features. In the event of a collision between a vehicle and a parking lock, the lock can easily scrape against the vehicle's chassis, causing damage. Therefore, there is an urgent need for a parking lock that can effectively prevent scraping. Utility Model Content

[0003] Based on this, and in response to the above problems, this utility model proposes an anti-scratch parking lock, which solves the problem that current parking locks are prone to scratching the vehicle chassis when they collide with a vehicle, thereby causing damage to the vehicle.

[0004] The technical solution of this utility model is:

[0005] A scratch-resistant floor lock includes a housing, a baffle, a damping transmission assembly, and a drive assembly. A first partition plate and a second partition plate are fixedly provided inside the housing. The first partition plate and the second partition plate divide the internal space of the housing into a first cavity, a second cavity, and a third cavity arranged sequentially.

[0006] The damping transmission assembly includes a transmission rod, a transmission gear, and a damping structure. The transmission rod is disposed in the second cavity, and its two ends pass through the first partition plate and the second partition plate respectively, and are rotatably connected to the first partition plate and the second partition plate. The two ends of the transmission rod extend into the first cavity and the third cavity respectively. A baffle is disposed in the second cavity, and one end is fixedly connected to the transmission rod. The damping structure and the transmission gear are disposed in the third cavity, and the transmission gear is fixedly connected to one end of the transmission rod.

[0007] The damping structure includes a bushing, a first friction plate, a drive gear, a second friction plate, a retaining ring, a disc spring, an anti-loosening washer, and a locking nut, which are sequentially sleeved on the bushing. The locking nut is threaded to the bushing and is used to fix the first friction plate, the drive gear, the second friction plate, the retaining ring, the disc spring, and the anti-loosening washer on the bushing. The drive gear is rotatably connected to the bushing and meshes with the transmission gear. The two sides of the drive gear are fixed to the first and second friction plates by friction. The drive assembly is located in the third cavity, and one end of the bushing is connected to the drive assembly.

[0008] Preferably, the end of the baffle connected to the transmission rod is provided with a plurality of connecting blocks, one end of which is fixedly connected to the baffle, and the other end is sleeved on the transmission rod and fixedly connected to the transmission rod.

[0009] Preferably, a first mating seat is provided on one side of the second cavity, and the first mating seat is detachably connected to the housing by bolts. One end of the baffle connected to the transmission rod is in clearance fit with the first mating seat. A second mating seat is provided on the other side of the second cavity, and the second mating seat is detachably connected to the housing by bolts. The bottom of the other end of the baffle can contact the second mating seat.

[0010] Preferably, the top of the housing is provided with a cover plate and a sealing plate. The cover plate is configured to cooperate with the first cavity and is detachably connected to the top of the housing by bolts. The cover plate is used to cover the first cavity. The sealing plate is configured to cooperate with the third cavity and is detachably connected to the top of the housing by bolts. The sealing plate is used to close the third cavity.

[0011] Preferably, a sealing gasket is provided between the sealing plate and the housing, and a sealing groove is provided on the top of the housing to cooperate with the sealing gasket. The sealing gasket is installed in the sealing groove and is detachably connected to the sealing groove. The bottom of the sealing plate is in contact with the sealing gasket.

[0012] Preferably, the first cavity is provided with a rotating seat, which is detachably connected to the housing by bolts, and the end of the transmission rod located in the first cavity passes through the rotating seat and is rotatably connected to the rotating seat.

[0013] Preferably, the drive assembly includes a drive motor and a gearbox, which are fitted together in the third cavity and are detachably connected to the housing by bolts. The output shaft of the drive motor is fixedly connected to the input shaft of the gearbox, and the bushing is fixedly connected to the output shaft of the gearbox.

[0014] Preferably, the gearbox includes a housing, a worm gear, a connecting rod, and a worm. The housing is detachably connected to the housing by bolts. The worm gear, connecting rod, and worm are respectively disposed within the housing. One end of the connecting rod passes through the housing and is rotatably connected to the housing. The worm gear is fixedly disposed at one end of the connecting rod located within the housing. A bushing is fixedly connected to the other end of the connecting rod. Both ends of the worm pass through the housing and are rotatably connected to the housing. The worm and worm gear are configured to cooperate. The output shaft of the drive motor is fixedly connected to one end of the worm.

[0015] Preferably, a circuit board box is provided on the side of the sealing plate near the third cavity, and the circuit board box is detachably connected to the sealing plate by bolts. An indicator light strip, a human body sensor and a solar panel are embedded and installed on the other side of the sealing plate.

[0016] Preferably, the third cavity contains a battery, which is detachably connected to the housing by bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In use, this invention drives the bushing in the damping structure to rotate via the drive assembly. When the locking nut is threadedly connected to and tightened on the bushing, it compresses the disc spring, generating a continuous preload. This preload is sequentially transmitted to the anti-lock ring, the second friction plate, the drive gear, and the first friction plate, causing the first and second friction plates to clamp the drive gear. Consequently, when the bushing rotates, the main gear rotates synchronously, which in turn drives the transmission gear via the drive gear, thereby rotating the transmission rod and the baffle. This allows the baffle to be raised and locked or lowered and released. When the baffle is subjected to external force from a vehicle collision, the force is transmitted through the baffle to the transmission rod, causing it to generate a reverse torque. This reverse torque is transmitted to the drive gear via the transmission gear. When the reverse torque exceeds the maximum static friction between the first and second friction plates and the drive gear, the drive gear overcomes the friction and rotates relative to the first and second friction plates and the bushing, allowing the baffle to rotate and reducing damage to the vehicle chassis. This solves the problem that current parking space locks are prone to scraping the vehicle chassis and causing damage when they collide with a vehicle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the explosion structure of an anti-scratch floor lock as described in an embodiment of this utility model;

[0021] Figure 2 This is a partial structural diagram of an anti-scratch lock as described in an embodiment of this utility model. Figure 1 ;

[0022] Figure 3 This is a partial structural diagram of an anti-scratch lock as described in an embodiment of this utility model. Figure 2 ;

[0023] Figure 4 This is a partial structural diagram of the drive component and damping structure described in the embodiments of this utility model. Figure 1 ;

[0024] Figure 5 This is a partial structural diagram of the drive component and damping structure described in the embodiments of this utility model. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the structure of the sealing plate described in the embodiment of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Housing, 11-Baffle, 12-Damping transmission assembly, 13-Drive assembly, 14-First partition plate, 15-Second partition plate, 16-First cavity, 17-Second cavity, 18-Third cavity, 19-Transmission rod, 20-Transmission gear, 21-Damping structure, 22-Busset, 23-First friction plate, 24-Drive gear, 25-Second friction plate, 26-Isolation ring, 27-Disc spring, 28-Anti-loosening washer, 29-Locking screw 30-Connecting block, 31-First mating seat, 32-Second mating seat, 33-Cover plate, 34-Sealing plate, 35-Sealing gasket, 36-Sealing groove, 37-Rotating seat, 38-Drive motor, 39-Reduction gearbox, 40-Box body, 41-Worm gear, 42-Connecting rod, 43-Worm, 44-Circuit board box, 45-Indicator light strip, 46-Human body sensor, 47-Solar panel, 48-Battery, 49-Anti-collision strip, 50-Torsion spring. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0034] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0035] Example:

[0036] like Figures 1 to 6 As shown, this embodiment discloses an anti-scratch floor lock, including a housing 10, a baffle 11, a damping transmission assembly 12 and a drive assembly 13. A first partition plate 14 and a second partition plate 15 are fixedly provided inside the housing 10. The first partition plate 14 and the second partition plate 15 divide the internal space of the housing 10 into a first cavity 16, a second cavity 17 and a third cavity 18 arranged sequentially.

[0037] The damping transmission assembly 12 includes a transmission rod 19, a transmission gear 20, and a damping structure 21. The transmission rod 19 is disposed in the second cavity 17. Both ends of the transmission rod 19 pass through the first partition plate 14 and the second partition plate 15 respectively, and are rotatably connected to the first partition plate 14 and the second partition plate 15. Both ends of the transmission rod 19 extend into the first cavity 16 and the third cavity 18 respectively. The baffle 11 is disposed in the second cavity 17, and one end is fixedly connected to the transmission rod 19. The damping structure 21 and the transmission gear 20 are disposed in the third cavity 18. The transmission gear 20 is fixedly connected to one end of the transmission rod 19.

[0038] The damping structure 21 includes a bushing 22, a first friction plate 23, a drive gear 24, a second friction plate 25, a retaining ring 26, a disc spring 27, an anti-loosening washer 28, and a locking nut 29, which are sequentially sleeved on the bushing 22. The locking nut 29 is threaded to the bushing 22 and is used to fix the first friction plate 23, the drive gear 24, the second friction plate 25, the retaining ring 26, the disc spring 27, and the anti-loosening washer 28 on the bushing 22. The drive gear 24 is rotatably connected to the bushing 22 and meshes with the transmission gear 20. The two sides of the drive gear 24 are fixed to the first friction plate 23 and the second friction plate 25 by friction. The drive assembly 13 is disposed in the third cavity 18, and one end of the bushing 22 is connected to the drive assembly 13.

[0039] In use, the drive assembly 13 drives the bushing 22 in the damping structure 21 to rotate. When the locking nut 29 is threadedly connected to the bushing 22 and tightened, it compresses the disc spring 27 to generate a continuous preload. The preload is transmitted sequentially to the anti-lock ring 26, the second friction plate 25, the drive gear 24 and the first friction plate 23, causing the first friction plate 23 and the second friction plate 25 to clamp the drive gear 24. As a result, when the bushing 22 rotates, the main gear rotates synchronously, which in turn drives the transmission gear 20 through the drive gear 24, which in turn drives the transmission rod 19 and the baffle 11 to rotate, thereby realizing the lifting and locking or lowering and releasing of the baffle 11. When the baffle 11 is subjected to an external force generated by a vehicle collision, the force is transmitted through the baffle 11 to the transmission rod 19, causing the transmission rod 19 to generate a reverse torque. This reverse torque is transmitted to the drive gear 24 through the transmission gear 20. When the reverse torque exceeds the maximum static friction between the first friction plate 23, the second friction plate 25, and the drive gear 24, the drive gear 24 will overcome the friction and rotate relative to the first friction plate 23, the second friction plate 25, and the bushing 22, thereby allowing the baffle 11 to rotate and reducing the damage of the baffle 11 to the vehicle chassis. This solves the problem that current parking space locks easily scrape the vehicle chassis and cause damage when colliding with a vehicle.

[0040] To facilitate the installation of the baffle 11, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the baffle 11 is provided with a plurality of connecting blocks 30 at one end connected to the transmission rod 19. One end of the plurality of connecting blocks 30 is fixedly connected to the baffle 11, and the other end is sleeved on the transmission rod 19 and fixedly connected to the transmission rod 19.

[0041] The arrangement of several connecting blocks 30 facilitates the installation of the baffle 11.

[0042] As a further preferred embodiment, the other end of the baffle 11 is provided with a plurality of anti-collision strips 49, which are detachably connected to the baffle 11.

[0043] The installation of several anti-collision strips 49 can further reduce the damage to the vehicle chassis caused by the baffle 11. The anti-collision strips 49 can be made of rubber materials available in the prior art.

[0044] In order to cooperate with the baffle 11, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that a first mating seat 31 is provided on one side of the second cavity 17. The first mating seat 31 is detachably connected to the housing 10 by bolts. One end of the baffle 11 connected to the transmission rod 19 is clearance-fitted with the first mating seat 31. A second mating seat 32 is provided on the other side of the second cavity 17. The second mating seat 32 is detachably connected to the housing 10 by bolts. The bottom of the other end of the baffle 11 can contact the second mating seat 32.

[0045] The first mating seat 31 is clearance-fitted with the baffle 11, which facilitates the rotation of the baffle 11; the second mating seat 32 is provided to support the baffle 11 when it is not raised.

[0046] In order to shield the first cavity 16 and the third cavity 18, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the top of the housing 10 is provided with a cover plate 33 and a sealing plate 34. The cover plate 33 is configured to cooperate with the first cavity 16 and is detachably connected to the top of the housing 10 by bolts. The cover plate 33 is used to shield the first cavity 16. The sealing plate 34 is configured to cooperate with the third cavity 18 and is detachably connected to the top of the housing 10 by bolts. The sealing plate 34 is used to seal the third cavity 18.

[0047] The cover plate 33 and the sealing plate 34 are designed to easily cover the first cavity 16 and the third cavity 18.

[0048] A sealing gasket 35 is provided between the sealing plate 34 and the housing 10. The top of the housing 10 is provided with a sealing groove 36 that cooperates with the sealing gasket 35. The sealing gasket 35 is installed in the sealing groove 36 and is detachably connected to the sealing groove 36. The bottom of the sealing plate 34 is in contact with the sealing gasket 35.

[0049] The sealing gasket 35 can facilitate the improvement of the sealing performance of the third cavity 18, thereby improving the waterproof performance of the third cavity 18.

[0050] To improve the stability of the transmission rod 19, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that a rotating seat 37 is provided in the first cavity 16. The rotating seat 37 is detachably connected to the housing 10 by bolts. One end of the transmission rod 19 located in the first cavity 16 passes through the rotating seat 37 and is rotatably connected to the rotating seat 37.

[0051] By setting a rotating seat 37 and rotatably connecting one end of the transmission rod 19 to the rotating seat 37, the stability of the transmission rod 19 can be improved.

[0052] As a further preferred embodiment, a torsion spring 50 is provided inside the first cavity 16. The torsion spring 50 is sleeved on the transmission rod 19, with one end of the torsion spring 50 fixed to the transmission rod 19 and the other end in contact with the rotating seat 37. The torsion spring 50 is used to increase the resistance to the rotation of the transmission rod 19.

[0053] To facilitate the self-locking of the baffle 11, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the drive assembly 13 includes a drive motor 38 and a reduction gearbox 39. The drive motor 38 and the reduction gearbox 39 are disposed in the third cavity 18 and are detachably connected to the housing 10 by bolts. The output shaft of the drive motor 38 is fixedly connected to the input shaft of the reduction gearbox 39, and the bushing 22 is fixedly connected to the output shaft of the reduction gearbox 39.

[0054] The gearbox 39 includes a housing 40, a worm gear 41, a connecting rod 42, and a worm 43. The housing 40 is detachably connected to the housing 10 by bolts. The worm gear 41, the connecting rod 42, and the worm 43 are respectively disposed inside the housing 40. One end of the connecting rod 42 passes through the housing 40 and is rotatably connected to the housing 40. The worm gear 41 is fixedly disposed at one end of the connecting rod 42 located inside the housing 40. The bushing 22 is fixedly connected to the other end of the connecting rod 42. Both ends of the worm 43 pass through the housing 40 and are rotatably connected to the housing 40. The worm 43 is configured to cooperate with the worm gear 41. The output shaft of the drive motor 38 is fixedly connected to one end of the worm 43.

[0055] By setting up worm gear 41 and worm 43, and utilizing the self-locking characteristics of worm gear 41 and worm 43, baffle 11 can have a self-locking capability, thereby achieving self-locking of baffle 11. In use, worm 43 can be driven by drive motor 38, which in turn drives worm gear 41 and connecting rod 42, and in turn drives bushing 22.

[0056] To address the issue of water ingress into the control circuit board of traditional floor locks, this embodiment is an improvement upon the previous embodiment. The difference lies in that a circuit board box 44 is provided on the side of the enclosed plate 34 near the third cavity 18. The circuit board box 44 is detachably connected to the enclosed plate 34 by bolts. An indicator light strip 45, a human body sensor 46, and a solar panel 47 are embedded and installed on the other side of the enclosed plate 34.

[0057] By placing the circuit board box 44 on the enclosed plate 34, water can be effectively prevented from entering the circuit board box 44, thus solving the problem of water easily entering the control circuit board in traditional floor locks.

[0058] The control circuit board is installed in the circuit board box 44. The control circuit board is electrically connected to the drive motor 38, indicator light strip 45, human body sensor 46 and solar panel 47. The connection circuit adopts existing technology and is not within the protection scope of this utility model, so it will not be described in detail.

[0059] The indicator light strip 45, the human body sensor 46, and the solar panel 47 all utilize existing technology. The solar panel 47 is used to charge the battery 48.

[0060] To facilitate power supply, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that a battery 48 is provided in the third cavity 18, and the battery 48 is detachably connected to the housing 10 by bolts.

[0061] Battery 48 uses existing technology, and by setting battery 48, it is easy to power the control circuit board, drive motor 38, indicator light strip 45, human body sensor 46 and solar panel 47.

[0062] The battery 48 is electrically connected to the control circuit board, drive motor 38, indicator light strip 45, human body sensor 46 and solar panel 47. The connection circuit adopts existing technology and is not within the protection scope of this utility model, so it will not be described in detail.

[0063] Working principle of this utility model:

[0064] In use, the drive assembly 13 drives the bushing 22 in the damping structure 21 to rotate. When the locking nut 29 is threadedly connected to the bushing 22 and tightened, it compresses the disc spring 27 to generate a continuous preload. The preload is transmitted sequentially to the anti-lock ring 26, the second friction plate 25, the drive gear 24 and the first friction plate 23, causing the first friction plate 23 and the second friction plate 25 to clamp the drive gear 24. As a result, when the bushing 22 rotates, the main gear rotates synchronously, which in turn drives the transmission gear 20 through the drive gear 24, which in turn drives the transmission rod 19 and the baffle 11 to rotate, thereby realizing the lifting and locking or lowering and releasing of the baffle 11. When the baffle 11 is subjected to an external force generated by a vehicle collision, the external force is transmitted to the transmission rod 19 through the baffle 11, causing the transmission rod 19 to generate a reverse torque. This reverse torque is transmitted to the drive gear 24 through the transmission gear 20. When the reverse torque exceeds the maximum static friction force between the first friction plate 23, the second friction plate 25 and the drive gear 24, the drive gear 24 will overcome the friction force and rotate relative to the first friction plate 23, the second friction plate 25 and the bushing 22, thereby allowing the baffle 11 to rotate, thereby reducing the damage of the baffle 11 to the vehicle chassis.

[0065] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scratch-guard deadbolt, characterized by, Includes a housing (10), a baffle (11), a damping transmission assembly (12), and a drive assembly (13). A first partition plate (14) and a second partition plate (15) are fixedly provided inside the housing (10). The first partition plate (14) and the second partition plate (15) divide the internal space of the housing (10) into a first cavity (16), a second cavity (17), and a third cavity (18) arranged sequentially. The damping transmission assembly (12) includes a transmission rod (19), a transmission gear (20), and a damping structure (21). The transmission rod (19) is disposed in the second cavity (17). The two ends of the transmission rod (19) pass through the first partition plate (14) and the second partition plate (15) respectively, and are rotatably connected to the first partition plate (14) and the second partition plate (15). The two ends of the transmission rod (19) extend into the first cavity (16) and the third cavity (18) respectively. The baffle (11) is disposed in the second cavity (17), and one end is fixedly connected to the transmission rod (19). The damping structure (21) and the transmission gear (20) are disposed in the third cavity (18). The transmission gear (20) is fixedly connected to one end of the transmission rod (19). The damping structure (21) includes a bushing (22), a first friction plate (23), a drive gear (24), a second friction plate (25), a backstop ring (26), a disc spring (27), a lock-lock washer (28), and a locking nut (29) sequentially sleeved on the bushing (22). The locking nut (29) is threaded to the bushing (22) and is used to fix the first friction plate (23), drive gear (24), second friction plate (25), backstop ring (26), disc spring (27), and lock-lock washer (28) on the bushing (22). The drive gear (24) is rotatably connected to the bushing (22) and meshes with the transmission gear (20). The two sides of the drive gear (24) are fixed to the first friction plate (23) and the second friction plate (25) by friction. The drive assembly (13) is set in the third cavity (18), and one end of the bushing (22) is connected to the drive assembly (13).

2. A scratch-resistant deadbolt according to claim 1, wherein, A number of connecting blocks (30) are provided at one end of the baffle (11) connected to the transmission rod (19). One end of the connecting blocks (30) is fixedly connected to the baffle (11), and the other end is sleeved on the transmission rod (19) and fixedly connected to the transmission rod (19).

3. A scratch-resistant deadbolt according to claim 2, wherein, A first mating seat (31) is provided on one side of the second cavity (17). The first mating seat (31) is detachably connected to the housing (10) by bolts. One end of the baffle (11) connected to the transmission rod (19) is in clearance fit with the first mating seat (31). A second mating seat (32) is provided on the other side of the second cavity (17). The second mating seat (32) is detachably connected to the housing (10) by bolts. The bottom of the other end of the baffle (11) can contact the second mating seat (32).

4. A scratch-resistant deadbolt according to claim 3, wherein, The top of the housing (10) is provided with a cover plate (33) and a sealing plate (34). The cover plate (33) is configured to cooperate with the first cavity (16) and is detachably connected to the top of the housing (10) by bolts. The cover plate (33) is used to cover the first cavity (16). The sealing plate (34) is configured to cooperate with the third cavity (18) and is detachably connected to the top of the housing (10) by bolts. The sealing plate (34) is used to seal the third cavity (18).

5. A scratch protection deadbolt according to claim 4, wherein, A sealing gasket (35) is provided between the sealing plate (34) and the housing (10). The top of the housing (10) is provided with a sealing groove (36) that cooperates with the sealing gasket (35). The sealing gasket (35) is installed in the sealing groove (36) and is detachably connected to the sealing groove (36). The bottom of the sealing plate (34) is in contact with the sealing gasket (35).

6. A scratch protection deadbolt according to claim 5, wherein, The first cavity (16) is provided with a rotating seat (37). The rotating seat (37) is connected to the housing (10) by bolts. One end of the transmission rod (19) located in the first cavity (16) passes through the rotating seat (37) and is rotatably connected to the rotating seat (37).

7. A scratch protection deadbolt according to claim 6, wherein, The drive assembly (13) includes a drive motor (38) and a gearbox (39). The drive motor (38) and the gearbox (39) are fitted together in the third cavity (18) and are detachably connected to the housing (10) by bolts. The output shaft of the drive motor (38) is fixedly connected to the input shaft of the gearbox (39), and the bushing (22) is fixedly connected to the output shaft of the gearbox (39).

8. A scratch-resistant floor lock according to claim 7, characterized in that, The gearbox (39) includes a housing (40), a worm gear (41), a connecting rod (42), and a worm (43). The housing (40) is detachably connected to the housing (10) by bolts. The worm gear (41), the connecting rod (42), and the worm (43) are respectively installed inside the housing (40). One end of the connecting rod (42) passes through the housing (40) and is rotatably connected to the housing (40). The worm gear (41) is fixedly installed at one end of the connecting rod (42) located inside the housing (40). The bushing (22) is fixedly connected to the other end of the connecting rod (42). Both ends of the worm (43) pass through the housing (40) and are rotatably connected to the housing (40). The worm (43) is fitted with the worm gear (41). The output shaft of the drive motor (38) is fixedly connected to one end of the worm (43).

9. A scratch-resistant deadbolt according to claim 8, wherein, A circuit board box (44) is provided on the side of the enclosed plate (34) near the third cavity (18). The circuit board box (44) is detachably connected to the enclosed plate (34) by bolts. An indicator light strip (45), a human body sensor (46) and a solar panel (47) are embedded on the other side of the enclosed plate (34).

10. A scratch protection deadbolt according to claim 9, wherein, The third cavity (18) contains a battery (48), which is detachably connected to the housing (10) by bolts.

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