A combined double gear

By introducing a combination of annular limiting blocks, retaining strips, limiting grooves, movable grooves, and positioning pins into the double gears, rapid disassembly and installation of the gears are achieved, solving the problem of high disassembly and assembly time and cost caused by gear wear, and improving practicality and stability.

CN224283390UActive Publication Date: 2026-05-26HANGZHOU MAIAN TRANSMISSION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU MAIAN TRANSMISSION TECH CO LTD
Filing Date
2025-08-28
Publication Date
2026-05-26

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Abstract

This utility model provides a combined double gear, relating to the technical field of gear transmission devices. It includes a first gear and a second gear. One side of the first gear has a connecting part 1, and one side of the connecting part 1 has a connecting part 2. The first gear and the second gear are movably connected via the connecting part 2. A quick-release assembly is installed on the connecting part 1. This device, through the coordinated use of hexagonal slots, bolts, locating pins, sliders, springs, movable slots, and limiting slots, facilitates the replacement of the second gear by technicians, and makes it easy to disassemble or reassemble the gear structure, reducing time and costs.
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Description

Technical Field

[0001] This utility model belongs to the technical field of gear transmission devices, and more specifically, it relates to a combined double gear. Background Technology

[0002] A double gear is a mechanical device consisting of two interconnected gears. They typically have different numbers of teeth or different sizes and transmit motion and force through meshing. This structure can be used in a variety of applications, including gear reducers, transmission devices, and some complex mechanical systems.

[0003] Based on the above, the inventors have discovered the following problems: In the use of existing double gears, the teeth wear due to long-term use, requiring the entire gear structure to be disassembled or reassembled, which increases time and cost.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a combined double gear to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effect of this utility model, a combined double gear, are achieved by the following specific technical means:

[0006] A combined double gear includes a gear one and a gear two. A connecting part one is provided on one side of the gear one, and a connecting part two is provided on one side of the connecting part one. The gear one is movably connected to the gear two through the connecting part two, and a quick-release assembly is installed on the connecting part one.

[0007] Furthermore, the quick-release assembly includes an annular limiting block and a pair of mounting slots. The annular limiting block is embedded in one side of the gear two. A pair of retaining strips are installed at both ends of the annular limiting block. One end of each retaining strip is provided with a limiting groove. The pair of mounting slots are respectively provided at both ends of the gear two. One end of each mounting slot is provided with a movable groove. A positioning pin is slidably installed in the movable groove. The positioning pin is engaged with the limiting groove.

[0008] Furthermore, the movable groove is provided with a sliding groove on its periphery, and bolts are rotatably installed at both ends of the gear two through the groove. The bottom end of the bolt is threadedly connected to the positioning pin. A slider is installed at one end of the positioning pin. The slider is slidably connected to the sliding groove. A spring is installed on one side of the slider. One end of the spring is connected to the movable groove. The spring is fitted around the bottom end of the bolt.

[0009] Furthermore, the surface of the bolt is level with the surface of the second gear, and the surface of the bolt is provided with a hexagonal groove.

[0010] Furthermore, one side of the gear two is provided with an annular groove, the annular limiting block is engaged with the annular groove, and a pair of through grooves are provided at both ends of the annular groove, through which the locking strip passes.

[0011] Furthermore, a pair of slots are provided at the other two ends of the annular groove, and a pair of blocks are installed at both ends of the annular limiting block, with the blocks engaging with the slots.

[0012] Furthermore, a plurality of teeth are equidistantly mounted on the periphery of the first gear, and a plurality of teeth are equidistantly mounted on the periphery of the second gear.

[0013] Furthermore, one side of the first gear is provided with a shaft hole, and a protrusion is installed on the inner wall of the shaft hole. One side of the second gear is provided with a shaft hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By using the combination of the annular limiting block, the locking strip, the limiting groove, the movable groove, the positioning pin, and the mounting groove, the annular limiting block embeds gear two between the annular limiting block and the connecting part one. The locking strip engages with the mounting groove, and the positioning pin moves downward along the movable groove and engages with the limiting groove to lock the locking strip, preventing gear two from shaking and improving practicality.

[0016] By using the cooperation of hexagonal slots, bolts, locating pins, sliders, springs, movable slots, and limiting slots, when the locking strip is inserted into the mounting slot, a tool is used to rotate the bolt in conjunction with the hexagonal slot. The bolt drives the locating pin to move downwards in the movable slot, causing the locating pin to engage with the limiting slot. The spring compresses the slider, further pushing the locating pin, which moves downwards along the movable slot and engages with the limiting slot, thus locking the locking strip. During disassembly, rotating the bolt causes the bolt to move the locating pin upwards. When the locating pin disengages from the limiting slot, the annular limiting block can be removed, and gear two can be replaced. This facilitates the disassembly or reassembly of the gear structure, reducing time and costs.

[0017] By using the annular groove, annular limiting block, through groove, locking strip, locking slot and locking block in combination, the annular limiting block engages with the annular groove, the locking strip engages with the through groove, and the locking block engages with the locking slot, which facilitates the limiting of gear two, keeps gear two running stably during use, and improves practicality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a combined double gear according to the present invention.

[0019] Figure 2 This is an exploded schematic diagram of a combined double gear according to the present invention.

[0020] Figure 3 This is a schematic diagram of a combined double gear movable groove according to the present invention.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Gear 1; 2. Gear 2; 3. Connecting part 1; 4. Tooth 1; 5. Tooth 2; 6. Connecting part 2; 7. Shaft hole 1; 8. Protrusion; 9. Shaft hole 2; 10. Annular groove; 11. Annular limiting block; 12. Through groove; 13. Locking strip; 14. Limiting groove; 15. Locking block; 16. Locking groove; 17. Mounting groove; 18. Bolt; 19. Hexagonal groove; 20. Locating pin; 21. Slide groove; 22. Slider; 23. Spring; 24. Movable groove. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 3 As shown:

[0028] This utility model provides a combined double gear, including a gear 1 and a gear 2. A connecting part 3 is provided on one side of the gear 1, and a connecting part 2 6 is provided on one side of the connecting part 3. The gear 1 is movably connected to the gear 2 through the connecting part 2 6, and a quick-release component is installed on the connecting part 3.

[0029] The quick-release assembly includes an annular limiting block 11 and a pair of mounting slots 17. The annular limiting block 11 is embedded in one side of the gear 2. A pair of retaining strips 13 are installed at both ends of the annular limiting block 11. One end of each retaining strip 13 is provided with a limiting groove 14. The pair of mounting slots 17 are respectively provided at both ends of the gear 2. One end of each mounting slot 17 is provided with a movable groove 24. A positioning pin 20 is slidably installed in the movable groove 24. The positioning pin 20 is engaged with the limiting groove 14. Through the cooperation of the annular limiting block 11, retaining strips 13, limiting groove 14, movable groove 24, positioning pin 20 and mounting slots 17, the annular limiting block 11 embeds the gear 2 between the annular limiting block 11 and the connecting part 3. The retaining strips 13 are engaged with the mounting slots 17. The positioning pin 20 moves downward along the movable groove 24 and engages with the limiting groove 14, locking the retaining strips 13 and preventing the gear 2 from shaking, thus improving practicality.

[0030] The movable groove 24 has a sliding groove 21 on its periphery. Bolts 18 are rotatably mounted on both ends of the gear 2 via the groove. The bottom end of the bolt 18 is threadedly connected to the positioning pin 20. A slider 22 is mounted on one end of the positioning pin 20 and is slidably connected to the sliding groove 21. A spring 23 is mounted on one side of the slider 22, and one end of the spring 23 is connected to the movable groove 24. The spring 23 is fitted around the bottom end of the bolt 18. The system comprises the bolt 18, positioning pin 20, slider 22, spring 23, movable groove 24, and limiting groove 14. When the locking strip 13 is inserted into the mounting groove 17, the bolt 18 is rotated, and the bolt 18 drives the positioning pin 20 to move downward in the movable groove 24, so that the positioning pin 20 engages with the limiting groove 14. The spring 23 squeezes the slider 22, further pushing the positioning pin 20. When disassembling, the bolt 18 is rotated, and the bolt 18 drives the positioning pin 20 to move upward. When the positioning pin 20 is disengaged from the limiting groove 14, the annular limiting block 11 can be removed to replace the gear 2. This facilitates the disassembly or reassembly of the gear structure, reducing time and cost.

[0031] The surface of the bolt 18 is level with the surface of the gear 2. The surface of the bolt 18 is provided with a hexagonal groove 19. The use of the hexagonal groove 19 makes it easy for technicians to rotate the bolt 18 without affecting the use of the connecting part 3.

[0032] Among them, one side of the gear 2 is provided with an annular groove 10, the annular limiting block 11 is engaged with the annular groove 10, and a pair of through grooves 12 are provided at both ends of the annular groove 10, and the locking strip 13 passes through the through grooves 12.

[0033] The annular groove 10 has a pair of slots 16 at its other two ends, and the annular limiting block 11 has a pair of blocks 15 at its two ends. The blocks 15 engage with the slots 16. Through the cooperation of the annular groove 10, the annular limiting block 11, the through groove 12, the locking strip 13, the slots 16, and the blocks 15, the annular limiting block 11 engages with the annular groove 10, the locking strip 13 engages with the through groove 12, and the blocks 15 engage with the slots 16. This facilitates the limiting of the gear 2, ensuring stable operation of the gear 2 during use and improving its practicality.

[0034] Among them, a plurality of teeth 4 are equidistantly installed on the periphery of gear 1, and a plurality of teeth 5 are equidistantly installed on the periphery of gear 2.

[0035] Among them, one side of the gear 1 is provided with a shaft hole 7, and a protrusion 8 is installed on the inner wall of the shaft hole 7. One side of the gear 2 is provided with a shaft hole 9.

[0036] The specific usage and function of this embodiment are as follows:

[0037] First, check the integrity of the device. Only use it after confirming it is correct. During use, first engage the annular limiting block 11 with the annular groove 10, engage the locking strip 13 with the through groove 12, and engage the locking block 15 with the locking groove 16 to facilitate limiting the gear 2. Then, engage the locking strip 13 with the mounting groove 17 on the connecting part 3. Use a tool to rotate the bolt 18 in conjunction with the hexagonal groove 19. The bolt 18 drives the positioning pin 20 to move downwards within the movable groove 24, causing the positioning pin 20 to engage with the limiting groove 14. The spring 23 then engages with the slider 2. 2. By squeezing, the positioning pin 20 is further pushed. The positioning pin 20 moves downward along the movable groove 24 and engages with the limiting groove 14, locking the locking strip 13 and completing the installation. When disassembling, the bolt 18 is rotated, and the bolt 18 drives the positioning pin 20 to move upward. When the positioning pin 20 is disengaged from the limiting groove 14, the annular limiting block 11 can be removed, and the gear 2 can be replaced. This facilitates the disassembly or reassembly of the gear structure, reducing time and cost. The overall design of this device is novel and the structure is simple, so it is worth promoting and using widely.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A combined double gear, comprising gear one (1) and gear two (2), characterized in that: One side of the gear (1) is provided with a connecting part (3), and one side of the connecting part (3) is provided with a connecting part (6). The gear (1) is movably connected to the gear (2) through the connecting part (6). A quick-release assembly is installed on the connecting part (3).

2. The combined double gear as described in claim 1, characterized in that: The quick-release assembly includes an annular limiting block (11) and a pair of mounting slots (17). The annular limiting block (11) is embedded in one side of the gear two (2). A pair of retaining strips (13) are installed at both ends of the annular limiting block (11). One end of the retaining strip (13) is provided with a limiting groove (14). The pair of mounting slots (17) are respectively provided at both ends of the gear two (2). One end of the mounting slot (17) is provided with a movable groove (24). A positioning pin (20) is slidably installed in the movable groove (24). The positioning pin (20) is engaged with the limiting groove (14).

3. The combined double gear as described in claim 2, characterized in that: The movable groove (24) is provided with a sliding groove (21) on its periphery. The two ends of the gear (2) are rotatably mounted with bolts (18) through the groove. The bottom end of the bolt (18) is threadedly connected to the positioning pin (20). A slider (22) is installed on one end of the positioning pin (20). The slider (22) is slidably connected to the sliding groove (21). A spring (23) is installed on one side of the slider (22). One end of the spring (23) is connected to the movable groove (24). The spring (23) is fitted around the bottom end of the bolt (18).

4. The combined double gear as described in claim 3, characterized in that: The surface of the bolt (18) is level with the surface of the gear (2), and the surface of the bolt (18) is provided with a hexagonal groove (19).

5. The combined double gear as described in claim 4, characterized in that: The gear 2 (2) has an annular groove (10) on one side, and the annular limiting block (11) is engaged with the annular groove (10). The two ends of the annular groove (10) are provided with a pair of through grooves (12), and the locking strip (13) passes through the through grooves (12).

6. The combined double gear as described in claim 5, characterized in that: The other two ends of the annular groove (10) are provided with a pair of slots (16), and the two ends of the annular limiting block (11) are provided with a pair of blocks (15), which are engaged with the slots (16).

7. The combined double gear as described in claim 1, characterized in that: The outer periphery of the gear one (1) is equidistantly equipped with several teeth one (4), and the outer periphery of the gear two (2) is equidistantly equipped with several teeth two (5).

8. The combined double gear as described in claim 1, characterized in that: One side of the gear (1) is provided with a shaft hole (7), and a protrusion (8) is installed on the inner wall of the shaft hole (7). One side of the gear (2) is provided with a shaft hole (9).