Door lock transmission mechanism

By designing an oil reservoir and lubrication components in the door lock transmission mechanism, lubricating oil can be added to the lock block at regular intervals and in measured quantities, solving the problem of insufficient lubrication of the lock block and improving the smoothness and operational reliability of the lock block.

CN224200431UActive Publication Date: 2026-05-05NINGBO HAISHU HUAYUN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HAISHU HUAYUN AUTO PARTS CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the prior art, the lock block of the door lock transmission mechanism lacks lubrication and is prone to jamming and irregular operation, resulting in difficulty in operation. Furthermore, the lubricating oil is difficult to penetrate into the internal structure of the lock block, affecting the normal operation of the lock tongue.

Method used

A door lock transmission mechanism was designed, comprising an oil reservoir and a lubrication component. The lubrication component adds lubricating oil to the lock block at regular intervals and in a measured manner. The quantitative addition of lubricating oil is achieved by using a float and gear meshing transmission. The oil reservoir can be easily disassembled through an installation component to ensure good lubrication of the lock block.

Benefits of technology

It effectively prevents the locking block from jamming due to lack of lubrication during long-term use, greatly improves the smoothness of the locking block, ensures that the locking block maintains good lubrication during long-term use, and avoids jamming due to insufficient lubrication.

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Abstract

The utility model provides a door lock transmission mechanism, which belongs to the technical field of door lock mechanisms, and comprises a lock block and a mounting lug fixed on the lock block, and further comprises an oil storage barrel arranged on the lock block, at least two mounting brackets are fixed on the oil storage barrel, mounting parts matched with the lock block are arranged on the mounting brackets, and the mounting lugs are arranged on the mounting brackets. The mounting part is used for dismounting the mounting support, and a lubricating assembly is arranged on the oil storage barrel and used for filling lubricating oil into the locking block. And the lubricating assembly is used for regularly and quantitatively oiling the locking block, so that jamming caused by long-term use is prevented, the smoothness of the locking block is improved, and the problem of jamming caused by insufficient lubrication is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of door lock mechanism technology, and in particular to a door lock transmission mechanism. Background Technology

[0002] The car door lock mechanism is a relatively complex spatial mechanism consisting of multiple components connected by certain kinematic pairs. It is an important accessory of the car, and its operation performance and reliability are directly related to the car's performance and safety.

[0003] In door lock transmission mechanisms, the various moving parts of the mechanical transmission mechanism require good lubrication to reduce friction and wear. If lubrication is insufficient or the lubricating oil deteriorates, the friction between the parts will increase, leading to increased transmission resistance and making operation difficult. For example, in gear and rack transmission, lack of lubrication will make the gears rotate inflexibly and the rack move poorly, affecting the normal operation of the lock tongue. However, in the existing technology, when lubricating and maintaining the door lock structure, lubricating oil is injected into the lock tongue to add lubricating oil through seepage. However, the lubricating oil is difficult to penetrate into the internal structure of the lock block, which makes it difficult for the lock block structure to be in good working condition. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a door lock transmission mechanism that uses a lubrication component to apply lubricant to the lock block at regular intervals and in measured amounts, preventing jamming caused by long-term use, improving the smoothness of the lock block, and avoiding jamming problems caused by insufficient lubrication.

[0005] In order to solve the above-mentioned technical problems, the present invention solves the problem of door lock blocks being prone to jamming and not flowing smoothly by means of lack of lubrication through the following technical solution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door lock transmission mechanism includes: a lock block and mounting ears fixed on the lock block, and further includes:

[0008] An oil reservoir is provided on the lock block, and at least two mounting brackets are fixed on the oil reservoir. The mounting brackets are provided with mounting parts adapted to the lock block. The mounting parts are used to disassemble the mounting brackets. The oil reservoir is provided with a lubrication assembly for adding lubricating oil to the lock block.

[0009] Preferably, the mounting component includes: a mounting rod fixed on the mounting bracket, a mounting sleeve fixed on the locking block, a channel a for the mounting rod to pass through on the mounting sleeve, an additional sleeve connected to the interior fixed on the mounting sleeve, a connecting rod slidably passing through the additional sleeve, a locking block fixed at one end of the connecting rod, a slot adapted to the locking block on the mounting rod, a spring a sleeved on the connecting rod, one end of the spring a fixed to the locking block, the other end of the spring a fixed to the additional sleeve, and a pull ring fixed at the end of the connecting rod away from the locking block.

[0010] Preferably, a spring b is fixed inside the channel a, and a rubber pad is fixed to the other end of the spring b. The rubber pad is slidably connected to the inside of the channel a, and the rubber pad abuts against the mounting rod.

[0011] Preferably, the lubrication assembly includes: at least two symmetrically distributed partitions fixed inside the oil reservoir, a baffle plate slidably connected between the two partitions, a shaft a rotatably connected to the oil reservoir, a spur gear a fixed on the shaft a, a through groove on one of the partitions, a toothed groove a meshing with the spur gear a on the baffle plate, a mounting plate fixed to the oil reservoir, a through hole on the mounting plate, a rod slidably passing through the through hole, a float fixed to one end of the rod, a shaft b rotatably connected to the oil reservoir, a spur gear b fixed on the shaft b, a toothed groove b meshing with the spur gear b on the rod, pulleys fixed between the shaft a and the shaft b, the two pulleys being connected by a belt drive, a micro-liquid pump fixed to the oil reservoir, a hose a fixed to the input end of the micro-liquid pump, the other end of the hose a extending into the oil reservoir, a hose b fixed to the output end of the micro-liquid pump, the other end of the hose b extending into the lock block.

[0012] Preferably, a limiting plate is fixed to one end of the rod, the length of the limiting plate is greater than the diameter of the through hole, and the limiting plate is located on one side of the spur gear b.

[0013] Preferably, a spring c is fixed on the mounting plate, the spring c is sleeved on the outer surface of the rod, and a hollow ring is fixed to one end of the spring c.

[0014] Preferably, a slider is fixed on the blocking plate, and a groove is provided on the partition plate, and the slider is slidably connected inside the groove.

[0015] Preferably, the oil storage tank has an installation groove, a rubber clip is fixed in the installation groove, and the baffle plate is adapted to the rubber clip.

[0016] Preferably, the central axis of the hollow ring is collinear with the central axis of the rod, and the central axis of the rod is collinear with the central axis of the through hole.

[0017] Preferably, one side of the locking block is an arc surface, and one end of the mounting rod is an arc surface, and the arc surface of the mounting rod is adapted to the arc surface of the locking block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model provides a door lock transmission mechanism. By setting a lubrication component, lubricating oil can be added to the lock block at regular intervals and in a measured amount, avoiding jamming caused by lack of lubrication during long-term use of the lock block. This greatly improves the smoothness of the lock block during long-term use and prevents the lock block from failing to lock due to poor lubrication.

[0020] This utility model provides a door lock transmission mechanism. Through the setting of the mounting parts, it is convenient to disassemble the oil reservoir. The oil reservoir can be disassembled and assembled without the use of special tools. It has the efficiency of quickly disassembling and assembling the oil reservoir, which is convenient for the staff to disassemble and assemble during the maintenance of the oil reservoir. It is highly practical. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the structure of this utility model;

[0024] Figure 3 This is a side sectional view of the mounting sleeve of this utility model;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structure of region A in the middle;

[0026] Figure 5 This is a side sectional view of the oil storage tank of this utility model;

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of the structure of region B in the middle;

[0028] Figure 7This is a schematic diagram of the lubrication component structure of this utility model;

[0029] Figure 8 for Figure 7 Enlarged schematic diagram of the structure in region C.

[0030] Drawing number explanations: 1. Locking block; 2. Mounting ear; 3. Oil reservoir; 4. Mounting bracket; 5. Mounting component; 51. Mounting rod; 52. Mounting sleeve; 53. Channel a; 54. Adding sleeve; 55. Connecting rod; 56. Locking block; 57. Locking groove; 58. Spring a; 59. Pull ring; 6. Lubrication assembly; 61. Partition plate; 62. Blocking plate; 63. Shaft a; 64. Spur gear a; 65. Through groove; 66. Toothed groove a; 67. Mounting plate; 68. Through hole; 69. Rod body; 610. Float ball; 611. Shaft b; 612. Spur gear b; 613. Toothed groove b; 614. Pulley; 615. Belt; 616. Miniature liquid pump; 617. Hoses a; 618. Hoses b; 7. Spring b; 8. Rubber pad; 9. Limiting plate; 10. Spring c; 11. Hollow ring; 12. Slider; 13. Slide groove; 14. Mounting groove; 15. Rubber retaining strip. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0033] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0034] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0035] Example 1: Please refer to Figures 1-8 A door lock transmission mechanism includes: a lock block 1 and a mounting ear 2 fixed on the lock block 1, and further includes: an oil reservoir 3 disposed on the lock block 1, at least two mounting brackets 4 fixed on the oil reservoir 3, mounting brackets 4 being provided with mounting parts 5 adapted to the lock block 1, the mounting parts 5 being used for disassembling the mounting brackets 4, the oil reservoir 3 being provided with a lubrication assembly 6, the lubrication assembly 6 being used for adding lubricating oil to the lock block 1, and an injection pipe being fixed on the oil reservoir 3;

[0036] It should be noted that the mounting ears 2 on the lock block 1 are used to install the lock block 1 on the car door. The lubrication component 6 adds lubricating oil to the lock block 1 in a timely and quantitative manner to avoid jamming due to lack of lubricating oil in the lock block 1 and to ensure that the lock block 1 is in a well lubricated state for use.

[0037] Furthermore, the lubrication assembly 6 includes: at least two symmetrically distributed partitions 61 fixed inside the oil reservoir 3; a baffle plate 62 slidably connected between the two partitions 61; a slider 12 fixed on the baffle plate 62; a groove 13 formed on the partitions 61; the slider 12 slidably connected inside the groove 13; the slider 12 sliding within the groove 13 not only guides the baffle plate 62 but also effectively improves the stability of the baffle plate 62 during vertical movement; a shaft a63 rotatably connected to the oil reservoir 3; a spur gear a64 fixed on the shaft a63; a through groove 65 formed on one of the partitions 61; a toothed groove a66 on the baffle plate 62 meshing with the spur gear a64; a mounting plate 67 fixed to the oil reservoir 3; a through hole 68 formed on the mounting plate 67; a rod 69 slidably passing through the through hole 68; a float 610 fixed to one end of the rod 69; and a rotatable connection on the oil reservoir 3. A shaft b611 is connected to the rod body 69, and a spur gear b612 is fixed on the shaft b611. A toothed groove b613 is opened on the rod body 69 to mesh with the spur gear b612. A pulley 614 is fixed between the shaft a63 and the shaft b611. The two pulleys 614 are connected by a belt 615. A micro liquid pump 616 is fixed on the oil reservoir 3. A hose a617 is fixed to the input end of the micro liquid pump 616. The other end of the hose a617 extends into the oil reservoir 3. A hose b618 is fixed to the output end of the micro liquid pump 616. The other end of the hose b618 extends into the locking block 1. A limit plate 9 is fixed to one end of the rod body 69. The length of the limit plate 9 is greater than the diameter of the through hole 68. The limit plate 9 is located on one side of the spur gear b612. The addition of the limit plate 9 restricts the rod body 69 and prevents it from disengaging from the through hole 68 due to continuous downward sliding.

[0038] A spring c10 is fixed on the mounting plate 67. The spring c10 is sleeved on the outer surface of the rod 69. A hollow ring 11 is fixed to one end of the spring c10. The central axis of the hollow ring 11 is collinear with the central axis of the rod 69. The central axis of the rod 69 is also collinear with the central axis of the through hole 68. The spring c10 prevents the float 610 from getting stuck when it is pushed upward, ensuring that the rod 69 can move up and down smoothly.

[0039] In addition, an installation groove 14 is provided inside the oil storage tank 3, and a rubber clip 15 is fixed inside the installation groove 14. The baffle plate 62 is adapted to the rubber clip 15. By adding the rubber clip 15, the sealing effect of the contact surface between the baffle plate 62 and the oil storage tank 3 is improved.

[0040] It should be noted that, through the setting of the lubrication component 6, lubricating oil can be added to the locking block 1 at regular intervals and in a measured amount, avoiding jamming caused by lack of lubrication during long-term use of the locking block 1, greatly improving the smoothness of the locking block 1 during long-term use, and preventing the locking block 1 from failing to lock due to poor lubrication.

[0041] It should also be noted that the lubricating oil flows from the space of the float 610 in the oil reservoir 3 to another space through the gap between the partition 61 and the oil reservoir 3. During this process, the pressure of the space with high pressure will gradually decrease due to the outflow of lubricating oil, while the pressure of the space with low pressure will gradually increase due to the inflow of lubricating oil. As the lubricating oil flows, the pressure difference between the two spaces separated by the partition 61 in the oil reservoir 3 gradually decreases until the pressure of the two spaces reaches equilibrium. At this point, the lubricating oil stops flowing, and the pressure of the two spaces becomes equal.

[0042] The principle of adding lubricating oil to the locking block 1 using the lubrication assembly 6 is as follows: Lubricating oil is added to the oil reservoir 3 through the filling pipe. When the oil level in the oil reservoir 3 increases, the float 610 rises along with the oil level in the reservoir 3 due to buoyancy, which drives the rod 69 to move synchronously. The meshing transmission between the toothed groove b613 and the spur gear b612 causes the shaft b611 to rotate synchronously. The transmission between the pulley 614 and the belt 615 causes the shaft a63 to rotate synchronously, which drives the meshing transmission between the spur gear a64 and the toothed groove a66. This, in turn, causes the baffle plate 62 to move upward, causing the lubricating oil to flow in through the gap between the baffle plate 62 and the oil reservoir 3. Driven by the micro liquid pump 616, the lubricating oil is drawn and pressurized by the hose a617, and then added to the inside of the locking block 1 by the hose b618, thus completing the work of adding lubricating oil to the locking block 1.

[0043] Example 2: Based on Example 1, according to Figures 1-5As shown, it is worth noting that the mounting component 5 includes: a mounting rod 51 fixed on the mounting bracket 4; a mounting sleeve 52 fixed on the locking block 1; a channel a53 for the mounting rod 51 to pass through the mounting sleeve 52; an auxiliary sleeve 54 connected to the interior fixed on the mounting sleeve 52; a connecting rod 55 slidingly passing through the auxiliary sleeve 54; a locking block 56 fixed at one end of the connecting rod 55; a slot 57 adapted to the locking block 56 on the mounting rod 51; and a sleeve on the connecting rod 55. There is a spring a58, one end of which is fixed to the locking block 56, and the other end of which is fixed to the mounting sleeve 54. A pull ring 59 is fixed to the end of the connecting rod 55 away from the locking block 56. One side of the locking block 56 is set with an arc surface, and one end of the mounting rod 51 is set with an arc surface. The arc surface of the mounting rod 51 is adapted to the arc surface of the locking block 56. By setting the arc surface of the mounting rod 51 and the arc surface of the locking block 56, the smoothness of the pressing transmission between the mounting rod 51 and the locking block 56 is improved.

[0044] A spring b7 is fixed inside channel a53, and a rubber pad 8 is fixed to the other end of the spring b7. The rubber pad 8 is slidably connected to the inside of channel a53 and abuts against the mounting rod 51. Through the elastic action of the spring b7, when the mounting rod 51 is inserted into channel a53, the elastic action of the spring b7 can enhance the fit between the slot 57 and the block 56, thereby improving the limiting stability of the mounting rod 51. When the block 56 separates from the slot 57, the elastic action of the spring b7 can pop out the mounting rod 51, making it convenient for the staff to disassemble the oil reservoir 3.

[0045] It should be noted that the installation component 5 facilitates the easy disassembly of the oil reservoir 3. The oil reservoir 3 can be disassembled and assembled without the need for specific tools, which provides a fast disassembly and assembly efficiency. This makes it convenient for staff to disassemble and assemble the oil reservoir 3 during maintenance, and it is highly practical.

[0046] The principle of disassembling oil reservoir 3 using mounting component 5:

[0047] When the oil reservoir 3 needs to be disassembled, the connecting rod 55 is moved synchronously by pulling the pull ring 59. At this time, the spring a58 is in a compressed state, which drives the locking block 56 to move synchronously until the locking block 56 is separated from the locking groove 57 on the mounting rod 51. The elasticity of the spring b7 is used to pop the mounting rod 51 out of the channel a53, thereby completing the disassembly of the oil reservoir 3.

[0048] When installing the oil reservoir 3, the installation rod 51 is aligned with the channel a53 by taking the oil reservoir 3 and inserting the installation rod 51 into the channel a53. The squeezing transmission between the installation rod 51 and the locking block 56 causes the locking block 56 to move upward under force until the locking groove 57 matches the locking block 56. Then, the elasticity of the spring a58 makes the locking block 56 engage with the locking groove 57, thereby completing the installation of the oil reservoir 3.

[0049] The miniature liquid pump 616 can be purchased commercially. The miniature liquid pump 616 is equipped with a power supply. It is a mature technology in the field and has been fully disclosed. Therefore, it will not be described again in the specification.

[0050] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A door lock transmission mechanism, comprising: Lock block (1) and mounting lug (2) fixed on lock block (1); Its characteristic is that it further includes: An oil reservoir (3) is provided on the locking block (1). At least two mounting brackets (4) are fixed on the oil reservoir (3). Mounting components (5) that are compatible with the locking block (1) are provided on the mounting brackets (4). The mounting components (5) are used to disassemble the mounting brackets (4). A lubrication assembly (6) is provided on the oil reservoir (3). The lubrication assembly (6) is used to add lubricating oil to the locking block (1).

2. The door lock transmission mechanism according to claim 1, characterized in that, The mounting component (5) includes: a mounting rod (51) fixed on the mounting bracket (4), a mounting sleeve (52) fixed on the locking block (1), a channel a (53) for the mounting rod (51) to pass through the mounting sleeve (52), an additional sleeve (54) connected to the interior fixed on the mounting sleeve (52), a connecting rod (55) slidably passing through the additional sleeve (54), a locking block (56) fixed at one end of the connecting rod (55), a slot (57) adapted to the locking block (56) on the mounting rod (51), a spring a (58) sleeved on the connecting rod (55), one end of the spring a (58) fixed to the locking block (56), the other end of the spring a (58) fixed to the additional sleeve (54), and a pull ring (59) fixed at the end of the connecting rod (55) away from the locking block (56).

3. A door lock transmission mechanism according to claim 2, characterized in that, A spring b (7) is fixed inside the channel a (53), and a rubber pad (8) is fixed at the other end of the spring b (7). The rubber pad (8) is slidably connected to the inside of the channel a (53), and the rubber pad (8) abuts against the mounting rod (51).

4. A door lock transmission mechanism according to claim 1, characterized in that, The lubrication assembly (6) includes: at least two symmetrically distributed partitions (61) fixed inside the oil reservoir (3), a baffle plate (62) slidably connected between the two partitions (61), a shaft a (63) rotatably connected to the oil reservoir (3), a spur gear a (64) fixed on the shaft a (63), a through groove (65) opened on one of the partitions (61), a toothed groove a (66) meshing with the spur gear a (64) opened on the baffle plate (62), a mounting plate (67) fixed on the oil reservoir (3), a through hole (68) opened on the mounting plate (67), a rod (69) slidably passing through the through hole (68), a float (610) fixed at one end of the rod (69), and the oil reservoir (3) A shaft b (611) is rotatably connected, and a spur gear b (612) is fixed on the shaft b (611). A toothed groove b (613) that meshes with the spur gear b (612) is opened on the rod body (69). A pulley (614) is fixed between the shaft a (63) and the shaft b (611). The two pulleys (614) are connected by a belt (615). A micro liquid pump (616) is fixed on the oil storage tank (3). A hose a (617) is fixed at the input end of the micro liquid pump (616). The other end of the hose a (617) extends into the oil storage tank (3). A hose b (618) is fixed at the output end of the micro liquid pump (616). The other end of the hose b (618) extends into the lock block (1).

5. A door lock transmission mechanism according to claim 4, characterized in that, One end of the rod (69) is fixed with a limiting plate (9), the length of the limiting plate (9) is greater than the diameter of the through hole (68), and the limiting plate (9) is located on one side of the spur gear b (612).

6. A door lock transmission mechanism according to claim 4, characterized in that, A spring c (10) is fixed on the mounting plate (67). The spring c (10) is sleeved on the outer surface of the rod body (69). A hollow ring (11) is fixed at one end of the spring c (10).

7. A door lock transmission mechanism according to claim 4, characterized in that, A slider (12) is fixed on the baffle plate (62), and a groove (13) is provided on the partition plate (61). The slider (12) is slidably connected inside the groove (13).

8. A door lock transmission mechanism according to claim 4, characterized in that, The oil storage tank (3) has an installation groove (14) inside, and a rubber clip (15) is fixed inside the installation groove (14). The baffle plate (62) is adapted to the rubber clip (15).

9. A door lock transmission mechanism according to claim 6, characterized in that, The central axis of the hollow ring (11) is collinear with the central axis of the rod (69), and the central axis of the rod (69) is collinear with the central axis of the through hole (68).

10. A door lock transmission mechanism according to claim 2, characterized in that, The card block (56) has an arc surface on one side, and the mounting rod (51) has an arc surface at one end, and the arc surface of the mounting rod (51) is adapted to the arc surface of the card block (56).