Air inlet gear

Abstract

The utility model discloses an air inlet gear and relates to the field of gears, the air inlet gear comprises a gear body, a plurality of mounting holes are formed in the gear body, protection assemblies are arranged in the mounting holes, and each protection assembly comprises a first protection pipe and a second protection pipe which are arranged in the corresponding mounting hole. When the gear is used, the first protection pipe and the second protection pipe are inserted from the two ends of the mounting hole correspondingly, the first protection pipe and the second protection pipe abut against each other, then the screw rod end of the fixing bolt penetrates through the first mounting ring and the gear body and is in threaded connection with the second mounting ring, and the first protection pipe and the second protection pipe are fixedly connected into the mounting hole; and during disassembly, the first protection pipe and the second protection pipe can be pulled out only by taking down the fixing bolts, so that the problem that the working efficiency is reduced due to the fact that the two circular shafts are difficult to take out from the mounting holes after being abraded after long-time use is avoided as much as possible.

Description

Technical Field

[0001] This application relates to the field of gears, and more particularly to intake gears. Background Technology

[0002] An intake gear is a mechanical component used in an engine's intake system. It has teeth on its rim and can continuously mesh to transmit motion and power. It is an important part of the engine's intake system. Through meshing with related gears, it enables precise control of the opening and closing of the intake valves, thereby regulating the engine's intake process.

[0003] Utility model patent CN221033857U discloses a wear-resistant intake and exhaust gear, including a body and a mounting hole on the body. The mounting hole has a positioning block formed by a ring protruding towards the center point in the middle of its inner cavity. An anti-rotation protective component is fitted into the mounting hole and fitted with the positioning block. The protective component consists of two round shafts, one of which consists of a large ring and a small ring. The large ring and the small ring are fixedly connected and are convex in shape. The symmetrical surfaces of the two small rings in the two round shafts are interlocked.

[0004] One type of wear-resistant intake and exhaust gear described above involves embedding two round shafts into a mounting hole. The round shafts are hammered by a workpiece until one side is flush with the edge of the mounting hole, allowing the extension rod to be inserted into the slot. Then, a workpiece is inserted into the round shaft to connect the main body 1 to the external structure, thereby reducing wear at the connection port. However, because the two round shafts are embedded in the mounting hole and flush with it, they become difficult to remove after wear occurs during long-term use, leading to reduced work efficiency. Utility Model Content

[0005] To address the aforementioned issues, this application provides an intake gear.

[0006] The intake gear provided in this application adopts the following technical solution:

[0007] An intake gear includes a gear body with multiple mounting holes. A protective component is provided in each mounting hole. The protective component includes a first protective tube and a second protective tube disposed in the mounting hole. A first mounting ring and a second mounting ring are respectively fixedly connected to the opposite ends of the first and second protective tubes. Multiple fixing bolts are fixedly connected to one side wall of the first mounting ring. The screw ends of the fixing bolts pass through the first mounting ring and the gear body and are threadedly connected to the second mounting ring.

[0008] By adopting the above technical solution, during use, the first and second protective tubes are inserted from both ends of the mounting hole, respectively, so that they abut against each other. Then, the screw end of the fixing bolt passes through the first mounting ring and the gear body, and is threaded to the second mounting ring, so that the first and second protective tubes are fixedly connected in the mounting hole. Then, the workpiece is inserted into the first and second protective tubes, and the gear body is connected to the external structure through the workpiece, which reduces the wear of the mounting hole. At the same time, when disassembling, only the fixing bolt needs to be removed to pull out the first and second protective tubes. This avoids the problem of difficulty in removing the two round shafts from the mounting hole after wear after long-term use, which would reduce work efficiency.

[0009] Preferably, the mounting hole sidewall is provided with multiple positioning grooves, and the sidewalls of the first protective tube and the second protective tube are provided with multiple positioning strips that are adapted to the positioning grooves.

[0010] By adopting the above technical solution, when the first protective tube and the second protective tube are embedded in the mounting hole, the positioning strips are inserted into the positioning grooves respectively, which can position the first protective tube and the second protective tube, preventing the first protective tube and the second protective tube from driving the first mounting ring and the second mounting ring to rotate, which would make it difficult for the fixing bolt to pass through the first mounting ring and the gear body to make a threaded connection with the second mounting ring.

[0011] Preferably, the gear body has receiving grooves on both sides of the mounting hole for concealing the first mounting ring and the second mounting ring.

[0012] By adopting the above technical solution, the first and second mounting rings can be hidden after the fixing bolts are threadedly connected to the second mounting ring, thus preventing the first and second mounting rings from extending out of the side wall of the gear body and affecting their use.

[0013] Preferably, one side wall of the first mounting ring has a plurality of receiving holes for concealing the nut end of the fixing bolt.

[0014] By adopting the above technical solution, the nut end of the fixing bolt can be accommodated through the receiving hole, preventing the nut end of the fixing bolt from extending out of the side wall of the first mounting ring and affecting its use.

[0015] Preferably, a plurality of extrusion rods are fixedly connected to one end of the first protective tube near the second protective tube, and a plurality of mounting grooves adapted to the extrusion rods are opened on one end of the second protective tube near the first protective tube, and springs are fixedly connected in each mounting groove.

[0016] By adopting the above technical solution, when the first protective tube and the second protective tube are brought into contact, the extrusion rod is inserted into the mounting groove to compress the spring. When disassembly and replacement are required, the fixing bolt is removed, and the spring rebound pushes the extrusion rod, which can make the first protective tube and the second protective tube move in opposite directions, pushing the first mounting ring and the second mounting ring out of the receiving groove. This prevents the first mounting ring and the second mounting ring from being located in the receiving groove, and the first protective tube and the second protective tube from being embedded in the mounting hole, making it difficult to remove the first protective tube and the second protective tube.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. This application utilizes the cooperative arrangement of a first protective tube, a second protective tube, and a fixing bolt. During use, the first and second protective tubes are inserted from both ends of the mounting hole, abutting against each other. The screw end of the fixing bolt passes through the first mounting ring and the gear body, and is then threaded onto the second mounting ring, fixing the first and second protective tubes within the mounting hole. A workpiece is then inserted into the first and second protective tubes, connecting the gear body to the external structure. This reduces wear on the mounting hole. Furthermore, during disassembly, only the fixing bolt needs to be removed to extract the first and second protective tubes, minimizing the problem of reduced work efficiency caused by wear after prolonged use, making it difficult to remove the two round shafts from the mounting hole.

[0019] 2. When the first and second protective tubes are brought into contact, the extrusion rods are inserted into the mounting grooves to compress the springs. When disassembly and replacement are required, the fixing bolts are removed, and the springs push the extrusion rods back, causing the first and second protective tubes to move in opposite directions. This pushes the first and second mounting rings out of the receiving grooves, preventing the first and second mounting rings from being located in the receiving grooves and the first and second protective tubes from being embedded in the mounting holes, making it difficult to remove the first and second protective tubes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the intake gear in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram illustrating the main mounting hole structure in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram illustrating the explosion of the connection structure between the first and second protective tubes, which is the main embodiment of this application.

[0023] Figure 4 This is a schematic diagram illustrating the spring structure in the embodiments of this application.

[0024] Reference numerals: 1. Gear body; 2. Mounting hole; 3. First protective tube; 4. Second protective tube; 5. First mounting ring; 6. Second mounting ring; 7. Fixing bolt; 8. Positioning groove; 9. Positioning strip; 10. Receiving groove; 11. Receiving hole; 12. Extrusion rod; 13. Mounting groove; 14. Spring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0026] This application discloses an intake gear in its embodiments.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The intake gear includes a gear body 1, which has multiple mounting holes 2. Each mounting hole 2 is equipped with a protective component, which includes a first protective tube 3, a second protective tube 4, a first mounting ring 5, a second mounting ring 6, and a fixing bolt 7.

[0028] The first protective tube 3 and the second protective tube 4 are installed in the mounting hole 2 and their ends abut against each other. The first mounting ring 5 is fixedly connected to the end of the first protective tube 3 away from the second protective tube 4. The second mounting ring 6 is fixedly connected to the end of the second protective tube 4 away from the first protective tube 3. Multiple fixing bolts 7 are provided and are all located on one side wall of the first mounting ring 5 and form a ring array. The screw end of the fixing bolt 7 passes through the first mounting ring 5 and the gear body 1 and is threadedly connected to the second mounting ring 6.

[0029] Reference Figure 2 and Figure 3 The mounting hole 2 has multiple positioning grooves 8 on its side wall. The first protective tube 3 and the second protective tube 4 have multiple positioning strips 9 that are adapted to the positioning grooves 8 on their side walls. When the first protective tube 3 and the second protective tube 4 are inserted into the mounting hole 2, the positioning strips 9 are inserted into the positioning grooves 8 respectively, which can position the first protective tube 3 and the second protective tube 4 and prevent the first protective tube 3 and the second protective tube 4 from driving the first mounting ring 5 and the second mounting ring 6 to rotate, which would make it difficult for the fixing bolt 7 to pass through the first mounting ring 5 and the gear body 1 to make a threaded connection with the second mounting ring 6.

[0030] Reference Figure 2 and Figure 3 The gear body 1 has receiving grooves 10 on both sides of the mounting hole 2 for hiding the first mounting ring 5 and the second mounting ring 6. Through the receiving grooves 10, the first mounting ring 5 and the second mounting ring 6 can be hidden after the fixing bolt 7 is threadedly connected to the second mounting ring 6, so as to prevent the first mounting ring 5 and the second mounting ring 6 from extending out of the side wall of the gear body 1 and affecting the use.

[0031] Reference Figure 3 The first mounting ring 5 has multiple receiving holes 11 on one side wall for hiding the nut end of the fixing bolt 7. The nut end of the fixing bolt 7 can be stored through the receiving holes 11 to prevent the nut end of the fixing bolt 7 from extending out of the side wall of the first mounting ring 5 and affecting its use.

[0032] Reference Figure 3 and Figure 4 Multiple extrusion rods 12 are fixedly connected to one end of the first protective tube 3 near the second protective tube 4. Multiple mounting slots 13 adapted to the extrusion rods 12 are opened on one end of the second protective tube 4 near the first protective tube 3. Springs 14 are fixedly connected in each mounting slot 13. When the first protective tube 3 and the second protective tube 4 are brought into contact, the extrusion rods 12 are inserted into the mounting slots 13 respectively, compressing the springs 14. When disassembly and replacement are required, the fixing bolts 7 are removed, and the extrusion rods 12 are pushed back by the springs 14, which can make the first protective tube 3 and the second protective tube 4 move in opposite directions, pushing the first mounting ring 5 and the second mounting ring 6 out of the receiving slot 10. This prevents the first mounting ring 5 and the second mounting ring 6 from being located in the receiving slot 10, and the first protective tube 3 and the second protective tube 4 from being embedded in the mounting hole 2, making it difficult to remove the first protective tube 3 and the second protective tube 4.

[0033] The implementation principle of the intake gear in this embodiment is as follows: During use, the first protective tube 3 and the second protective tube 4 are inserted from both ends of the mounting hole 2, causing the positioning strip 9 to be inserted into the positioning groove 8, making the first protective tube 3 and the second protective tube 4 abut against each other. The extrusion rod 12 is then inserted into the mounting groove 13 to compress the spring 14, preventing the first protective tube 3 and the second protective tube 4 from rotating. Simultaneously, the receiving groove 10 can conceal the first mounting ring 5 and the second mounting ring 6, preventing them from extending beyond the side wall of the gear body 1 and affecting use. Then, the screw end of the fixing bolt 7 passes through the first mounting... Ring 5 and gear body 1 are then threaded together with the second mounting ring 6, so that the nut end of the fixing bolt 7 is located in the receiving hole 11. The first protective tube 3 and the second protective tube 4 are fixedly connected in the mounting hole 2. When disassembly and replacement are required, simply remove the fixing bolt 7, and push the extrusion rod 12 by the spring 14 to make the first protective tube 3 and the second protective tube 4 move in opposite directions, pushing the first mounting ring 5 and the second mounting ring 6 out of the receiving groove 10. The first protective tube 3 and the second protective tube 4 can then be pulled out. This avoids the problem of difficulty in removing the two round shafts from the mounting hole 2 after wear during long-term use, which would reduce work efficiency.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An intake gear, comprising a gear body (1), wherein the gear body (1) has a plurality of mounting holes (2), and a protective component is provided in the mounting holes (2), characterized in that: The protective assembly includes a first protective tube (3) and a second protective tube (4) disposed in the mounting hole (2). The ends of the first protective tube (3) and the second protective tube (4) opposite to each other are respectively fixedly connected to a first mounting ring (5) and a second mounting ring (6). A plurality of fixing bolts (7) are fixedly connected to one side wall of the first mounting ring (5). The screw end of the fixing bolt (7) passes through the first mounting ring (5) and the gear body (1) and is threadedly connected to the second mounting ring (6).

2. The intake gear according to claim 1, characterized in that: The mounting hole (2) has multiple positioning grooves (8) on its side wall, and the first protective tube (3) and the second protective tube (4) have multiple positioning strips (9) that are compatible with the positioning grooves (8) on their side walls.

3. The intake gear according to claim 2, characterized in that: The gear body (1) has receiving grooves (10) on both sides of the mounting hole (2) for hiding the first mounting ring (5) and the second mounting ring (6).

4. The intake gear according to claim 3, characterized in that: The first mounting ring (5) has multiple receiving holes (11) on one side wall for hiding the nut end of the fixing bolt (7).

5. The intake gear according to claim 4, characterized in that: Multiple compression rods (12) are fixedly connected to one end of the first protective tube (3) near the second protective tube (4).

6. The intake gear according to claim 5, characterized in that: The second protective tube (4) has multiple mounting slots (13) that are adapted to the extrusion rod (12) at one end near the first protective tube (3), and each mounting slot (13) is fixedly connected with a spring (14).

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