Clutch automatic lock body structure

Abstract

The invention relates to the field of locks, and discloses a clutch automatic lock body structure which comprises a shell, a main spring bolt, a rack, a gear shifting assembly and an elastic lock piece are arranged in the shell, the rack and the elastic lock piece are arranged on the two opposite sides of the main spring bolt, the main spring bolt and the elastic lock piece are arranged on the first plane, and the gear shifting assembly is arranged on the second plane. The rack and the gear shifting assembly are located on a second plane staggered with the main spring bolt, the rack is connected with the main spring bolt and meshed with the gear shifting assembly, and the elastic lock piece abuts against the main spring bolt to maintain the rack and the gear shifting assembly to be located at preset positions. By arranging the elastic lock piece, the main spring bolt can be locked when the main spring bolt is in the stretching state or the contracting state, the main spring bolt can be slightly jacked when the main spring bolt is in the stretching state or the contracting state, and the static friction force needing to be overcome when the main spring bolt needs to be driven is reduced.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to a clutch automatic lock body structure. Background Art

[0002] In the design of modern locks, in order to ensure the stability and safety of the lock, the combination of rack and gear is usually used to move the lock tongue. This structure can effectively convert the external rotational force into linear motion, thereby promoting the extension and retraction of the lock tongue, thereby realizing the function of unlocking or locking. The combination of rack and gear can not only improve the stability of the lock, but also increase its durability and reduce the wear caused by frequent use;

[0003] However, since the lock tongue is movably arranged in the lock, it is difficult to ensure that the rack and the gear are in a relatively appropriate position when the rack and the lock tongue are connected. For example, when the lock is installed on the door panel, due to the vertical position of the door body and the effect of gravity, if the rack is located above the gear, the rack will be in close contact with the gear due to the effect of gravity, increasing the contact area. Since the contact area between the rack and the gear increases, the static friction that the lock needs to overcome when starting also increases. This means that when rotating the gear, a larger static friction must be overcome to make the rack move and push the lock tongue to complete the opening or closing action. Summary of the invention

[0004] The purpose of the present invention is to provide a clutch automatic lock body structure to solve the problem that when the existing lock is twisting the gear, the movable lock tongue increases the contact area between the rack and the gear, resulting in the need to overcome a large static friction force to twist the gear. The specific technical solution is as follows:

[0005] A clutch automatic lock body structure comprises a shell, wherein a main lock tongue, a rack, a gear toggle assembly and an elastic lock element are arranged in the shell, the rack and the elastic lock element are arranged on opposite sides of the main lock tongue, and are configured so that the main lock tongue and the elastic lock element are in a first plane, the rack and the gear toggle assembly are in a second plane misaligned with the main lock tongue, the rack is connected to the main lock tongue, and the rack is meshed with the gear toggle assembly, the elastic lock element abuts against the main lock tongue to maintain the rack and the gear toggle assembly in a predetermined position, and the main lock tongue is configured to be retracted and extended along a first direction, with the main lock tongue extending outward as an extended state and the main lock tongue contracting inward as a contracted state, and the gear toggle assembly is driven to drive the rack to change the main lock tongue from the contracted state to the extended state, and during the main lock tongue changing state, the gear toggle assembly drives the elastic lock element to be temporarily separated from the main lock tongue.

[0006] As one of the improvements of the above technical solution, the gear shift assembly includes a first gear shift plate, a second gear shift plate and a square core rotating block, the first gear shift plate is respectively provided with a first tooth groove and a second tooth groove on both sides, the first tooth groove is meshed with the rack, the second gear shift plate is provided with a third tooth groove, the second tooth groove is meshed with the third tooth groove, and the second gear shift plate is provided with a special-shaped hole for installing the square core rotating block.

[0007] As one of the improvements of the above technical solution, the elastic locking member includes a torsion spring and a rotating block, the rotating block is rotatably connected to the shell, the torsion spring is sleeved on the rotating block, and the two ends of the torsion spring are respectively in contact with the shell and the rotating block.

[0008] As one of the improvements of the above technical solution, the gear shift assembly also includes a clutch shift plate and a first return spring, the clutch shift plate is slidably connected to the shell, the first return spring is connected between the clutch shift plate and the shell, the clutch shift plate is provided with a raised first partition and a second partition, the first partition is arranged on the side of the square core rotating block, the square core rotating block is provided with a triangular protrusion, the first partition is arranged on the rotation path of the triangular protrusion, and the second partition is arranged between the rotating block and the main lock tongue.

[0009] As one of the improvements of the above technical solution, a first positioning groove and a second positioning groove at different heights are provided on the side of the main lock tongue, and the rotating block is provided with a protruding positioning portion, and the first positioning groove or the second positioning groove is used to accommodate the positioning portion and the second partition.

[0010] As one of the improvements of the above technical solution, an electric drive assembly is provided in the shell, and the electric drive assembly includes a motor, a first transmission gear group and a second transmission gear group. The motor is connected to an elastic trigger member, and a first through hole is provided on the shell to expose the elastic trigger member. The motor is connected to the first transmission gear group and is used to drive the first transmission gear group. The first gear shift plate is coaxially connected with a linkage gear, the second transmission gear group is meshed with the linkage gear, and the first transmission gear group is meshed with the second transmission gear group.

[0011] As one of the improvements of the above technical solution, a rotatable arc-shaped paddle is connected to the shell, one end of the arc-shaped paddle is hinged to the clutch paddle, and the outer side of the other end of the arc-shaped paddle abuts against the first transmission gear set. The sliding clutch paddle drives the arc-shaped paddle to push open the first transmission gear set, so that the first transmission gear set and the second transmission gear set are relatively far apart, and a second return spring is provided between the first transmission gear set and the shell.

[0012] As one of the improvements of the above technical solution, the rotating block is connected to a reversing baffle, the end of the reversing baffle is arranged on the end face edge of the linkage gear, the outer end face edge of the linkage gear is provided with an arc-shaped protrusion plate arranged along the outer end face edge of the linkage gear, and the reversing baffle is arranged on the rotation path of the arc-shaped protrusion plate.

[0013] As one of the improvements of the above technical solution, the shell is provided with a second through hole, in which an elastically retractable oblique tongue component is provided, and the square core rotating block is sleeved with an oblique tongue toggle plate for driving the oblique tongue component to retract and retract.

[0014] As one of the improvements of the above technical solution, a circuit board is provided in the shell, the circuit board is located below the clutch plate, the circuit board is connected to a photoelectric proximity switch, the linkage gear covers the first gear plate and the inner end surface edge of the linkage gear is provided with a trigger plate vertically connected thereto, and the trigger plate is used to cooperate with the photoelectric proximity switch.

[0015] The beneficial effects of the present invention are as follows: by providing an elastic locking piece, not only can the main lock tongue be locked when it is in an extended state or a retracted state, but the main lock tongue can also be slightly lifted when it is in an extended state or a retracted state, thereby reducing the static friction force that needs to be overcome when the main lock tongue needs to be driven.

[0016] Additional aspects and advantages of the present invention will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present invention. Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 or the description of the prior art 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 labor.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the main lock tongue of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the rack of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the rotating block of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the square core rotating block of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the clutch paddle of the present invention.

[0024] Figure 7 It is an exploded view of the present invention.

[0025] In the figure: 1. shell; 2. main lock tongue; 21. first positioning groove; 22. second positioning groove; 3. gear toggle assembly; 31. first gear toggle plate; 32. second gear toggle plate; 33. square core rotating block; 331. triangular protrusion; 34. clutch plate; 341. first partition plate; 342. second partition plate; 35. first return spring; 36. oblique tongue toggle plate; 4. rack; 5. elastic lock member; 51. torsion spring; 52. rotating block; 53. reversing baffle; 6. electric drive assembly; 61. motor; 62. first transmission gear set; 63. second transmission gear set; 64. linkage gear; 641. arc-shaped protrusion plate; 7. elastic trigger member; 8. arc-shaped paddle; 9. second return spring; 10. oblique tongue assembly. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] See also Figure 1-7In an embodiment of the present invention, a clutch automatic lock body structure includes a shell 1, in which a main lock tongue 2, a rack 4, a gear toggle assembly 3 and an elastic lock piece 5 are arranged, the rack 4 and the elastic lock piece 5 are arranged on opposite sides of the main lock tongue 2, and the main lock tongue 2 and the elastic lock piece 5 are arranged in a first plane, the rack 4 and the gear toggle assembly 3 are in a second plane misaligned with the main lock tongue 2, the rack 4 is connected to the main lock tongue 2, and the rack 4 is meshed with the gear toggle assembly 3, the elastic lock piece 5 abuts against the main lock tongue 2 to maintain the rack 4 and the gear toggle assembly 3 in a predetermined position, the main lock tongue 2 is configured to be retracted along a first direction, with the main lock tongue 2 extending outward as an extended state, and the main lock tongue 2 contracting inward as a contracted state, by driving the gear toggle assembly 3 to drive the rack 4 to change the main lock tongue 2 from the contracted state to the extended state, and during the process of the main lock tongue 2 changing state, the gear toggle assembly 3 drives the elastic lock piece 5 to temporarily separate from the main lock tongue 2.

[0029] The elastic locking piece and the rack 4 are respectively arranged on opposite sides of the main lock tongue 2, which can enhance the locking stability. The elastic locking piece is distributed on both sides: when the main elastic locking piece is located on both sides of the lock tongue, it can provide balanced locking force on both sides at the same time, preventing the main lock tongue 2 from being deflected or unstable due to uneven locking force on one side. In this way, the locking stability can be improved, ensuring that the main lock tongue 2 is firmly fixed at the desired position in the locked state.

[0030] The gear shift assembly 3 includes a first gear shift plate 31, a second gear shift plate 32 and a square core rotating block 33. The first gear shift plate 31 is provided with a first tooth groove and a second tooth groove on both sides, and the first tooth groove is engaged with the rack 4. The second gear shift plate 32 is provided with a third tooth groove, and the second tooth groove is engaged with the third tooth groove. The second gear shift plate 32 is provided with a special-shaped hole for installing the square core rotating block 33.

[0031] The elastic lock 5 includes a torsion spring 51 and a rotating block 52. The rotating block 52 is rotatably connected to the housing 1. The torsion spring 51 is sleeved on the rotating block 52, and the two ends of the torsion spring 51 are respectively in contact with the housing 1 and the rotating block 52. The torsion spring 51 is provided to complete the reset of the rotating block 52. In this embodiment, the rotating block 52 can prevent the main lock tongue 2 from being accidentally unlocked or loosened without operation. For example, when the lock is subjected to vibration or external force, the rotating block 52 ensures that the lock tongue remains in a locked state and will not loosen or slide due to external interference, which is particularly important for those requiring high stability and anti-interference.

[0032] The existing lock tongue design relies on manual or mechanical buckles to fix the position of the lock tongue, which usually requires external force or more complicated operations. In some scenarios where high-precision control of the locking state is required, manual operation or traditional mechanical structures may not provide sufficient accuracy and reliability. The elastic locking member, the gear toggle member and the two grooves are used to automatically lock and unlock the lock tongue through precise gear toggle control. This design reduces manual operation, provides higher automation control and precise locking function. The structure of this embodiment is relatively compact, and can achieve precise locking control in a limited space.

[0033] The gear shift assembly 3 also includes a clutch shift plate 34 and a first return spring 35. The clutch shift plate 34 is slidably connected to the housing 1. The first return spring 35 is connected between the clutch shift plate 34 and the housing 1. The clutch shift plate 34 is provided with a raised first partition plate 341 and a second partition plate 342. The first partition plate 341 is arranged on the side of the square core rotating block 33. The square core rotating block 33 is provided with a triangular protrusion 331. The first partition plate 341 is arranged on the rotation path of the triangular protrusion 331. The second partition plate 342 is arranged between the rotating block 52 and the main lock tongue 2.

[0034] A first positioning groove 21 and a second positioning groove 22 at different heights are provided on the side of the main lock tongue 2, and a protruding positioning portion is provided on the rotating block 52. The first positioning groove 21 or the second positioning groove 22 is used to accommodate the positioning portion and the second partition 342. Specifically, when the main lock tongue 2 is retracted, the positioning portion is placed in the second positioning groove 22, and when the main lock tongue 2 is extended, the positioning portion is placed in the first positioning groove 21, and the positioning portion is used to lock and lift the main lock tongue 2;

[0035] An electric drive assembly 6 is provided in the shell 1, and the electric drive assembly 6 includes a motor 61, a first transmission gear set 62 and a second transmission gear set 63. The motor 61 is connected to an elastic trigger member 7. A first through hole is provided on the shell 1 to expose the elastic trigger member 7. The motor 61 is connected to the first transmission gear set 62 and is used to drive the first transmission gear set 62. The first gear shift plate 31 is coaxially connected to a linkage gear 64. The second transmission gear set 63 is meshed with the linkage gear 64, and the first transmission gear set 62 is meshed with the second transmission gear set 63.

[0036] In some embodiments, a rotatable arcuate paddle 8 is connected to the shell 1, one end of the arcuate paddle 8 is hinged to the clutch paddle 34, and the outer side of the other end of the arcuate paddle 8 is in contact with the first transmission gear set 62 (specifically, a shell for installing the first transmission gear set 62). The sliding clutch paddle 34 drives the arcuate paddle 8 to push open the first transmission gear set 62, so that the first transmission gear set 62 and the second transmission gear set 63 are relatively far apart. A second return spring 9 is provided between the first transmission gear set 62 and the shell 1; due to the introduction of the spring, it can withstand a certain load and adapt to different operating conditions. It can also reduce direct contact or friction with other components to a certain extent, thereby reducing wear.

[0037] In the present invention, the elastic locking member can provide a slight lifting effect on the main lock tongue 2 to ensure that the meshing position between the rack 4 and the gear is maintained in the optimal state, thereby overcoming the problem that the gear needs to be twisted by overcoming a large static friction force due to the increased contact area between the rack 4 and the gear. The elastic locking member can maintain their relative position by fine-tuning, thereby avoiding the situation where the rack 4 and the gear are mismatched, stuck or damaged.

[0038] The rotating block 52 is connected to a reversing baffle 53, the end of which is arranged on the end face edge of the linkage gear 64. The outer end face edge of the linkage gear 64 is provided with an arc-shaped protrusion plate 641 arranged along the outer end face edge of the linkage gear 64, and the reversing baffle 53 is arranged on the rotation path of the arc-shaped protrusion plate 641.

[0039] The housing 1 is provided with a second through hole, in which an elastically retractable oblique tongue assembly 10 is provided, and the square core rotating block 33 is sleeved with an oblique tongue toggling plate 36 for driving the oblique tongue assembly 10 to retract.

[0040] A circuit board is provided in the housing 1, and the circuit board is located below the clutch plate 34. The circuit board is connected to a photoelectric proximity switch. The linkage gear 64 covers the first gear plate 31, and the inner end surface edge of the linkage gear 64 is provided with a trigger plate vertically connected thereto, and the trigger plate is used to cooperate with the photoelectric proximity switch.

[0041] It should be noted that the terms "first", "second", etc. in this document are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A clutch automatic lock body structure, comprising a housing, characterized in that: A main lock tongue, a rack, a gear toggle assembly and an elastic lock element are provided in the housing, the rack and the elastic lock element are arranged on opposite sides of the main lock tongue, and are configured so that the main lock tongue and the elastic lock element are in a first plane, the rack and the gear toggle assembly are in a second plane misaligned with the main lock tongue, the rack is connected to the main lock tongue, and the rack is meshed with the gear toggle assembly, the elastic lock element abuts against the main lock tongue to maintain the rack and the gear toggle assembly in a predetermined position, and the main lock tongue is configured to be retracted and extended along a first direction, with the main lock tongue extending outward as an extended state and the main lock tongue contracting inward as a contracted state, and the gear toggle assembly is driven to drive the rack to change the main lock tongue from the contracted state to the extended state, and during the main lock tongue changing state, the gear toggle assembly drives the elastic lock element to be temporarily separated from the main lock tongue.

2. The clutch automatic lock structure according to claim 1, characterized in that: The gear shift assembly includes a first gear shift plate, a second gear shift plate and a square core rotating block. The first gear shift plate is respectively provided with a first tooth groove and a second tooth groove on both sides, the first tooth groove is meshed with the rack, the second gear shift plate is provided with a third tooth groove, the second tooth groove is meshed with the third tooth groove, and the second gear shift plate is provided with a special-shaped hole for mounting the square core rotating block.

3. The clutch automatic lock structure according to claim 2, characterized in that: The elastic locking element comprises a torsion spring and a rotating block. The rotating block is rotatably connected to the housing. The torsion spring is sleeved on the rotating block. Two ends of the torsion spring are respectively in contact with the housing and the rotating block.

4. The clutch automatic lock structure according to claim 3, characterized in that: The gear shift assembly also includes a clutch shift plate and a first return spring, the clutch shift plate is slidably connected to the shell, the first return spring is connected between the clutch shift plate and the shell, the clutch shift plate is provided with a raised first partition and a second partition, the first partition is arranged on the side of the square core rotating block, the square core rotating block is provided with a triangular protrusion, the first partition is arranged on the rotation path of the triangular protrusion, and the second partition is arranged between the rotating block and the main lock tongue.

5. The clutch automatic lock structure according to claim 4, characterized in that: A first positioning groove and a second positioning groove at different heights are provided on the side surface of the main lock tongue, and the rotating block is provided with a protruding positioning portion, and the first positioning groove or the second positioning groove is used to accommodate the positioning portion and the second partition.

6. The clutch automatic lock structure according to claim 5, characterized in that: An electric drive assembly is provided in the shell, and the electric drive assembly includes a motor, a first transmission gear set and a second transmission gear set. The motor is connected to an elastic trigger member, and a first through hole is provided on the shell to expose the elastic trigger member. The motor is connected to the first transmission gear set and is used to drive the first transmission gear set. The first gear shift plate is coaxially connected to a linkage gear, the second transmission gear set is meshed with the linkage gear, and the first transmission gear set is meshed with the second transmission gear set.

7. The clutch automatic lock structure according to claim 6, characterized in that: A rotatable arc-shaped paddle is connected to the shell, one end of the arc-shaped paddle is hinged to the clutch paddle, and the outer side of the other end of the arc-shaped paddle abuts against the first transmission gear set. The sliding clutch paddle drives the arc-shaped paddle to push open the first transmission gear set, so that the first transmission gear set and the second transmission gear set are relatively separated, and a second return spring is provided between the first transmission gear set and the shell.

8. The clutch automatic lock structure according to claim 7, characterized in that: The rotating block is connected to a reversing baffle, the end of which is arranged on the end face edge of the linkage gear, the outer end face edge of the linkage gear is provided with an arc-shaped protruding plate arranged along the outer end face edge of the linkage gear, and the reversing baffle is arranged on the rotation path of the arc-shaped protruding plate.

9. The clutch automatic lock structure according to claim 8, characterized in that: The shell is provided with a second through hole, in which an elastically retractable oblique tongue component is provided, and the square core rotating block is sleeved with an oblique tongue shifting plate for driving the oblique tongue component to retract and retract.

10. The clutch automatic lock structure according to claim 9, characterized in that: A circuit board is provided in the shell, the circuit board is located below the clutch plate, the circuit board is connected to a photoelectric proximity switch, the linkage gear covers the first gear plate and the inner end surface edge of the linkage gear is provided with a trigger plate vertically connected thereto, and the trigger plate is used to cooperate with the photoelectric proximity switch.

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