High-temperature-resistant positioning elastic sheet

Abstract

The utility model discloses a high temperature resistant positioning elastic piece, which relates to the technical field of electric drill accessories, and comprises a positioning elastic piece main body, an air hole is arranged in the positioning elastic piece main body, a reinforcing strip is fixedly connected in the air hole, and a support component is arranged at one end of the positioning elastic piece main body. By adopting the structure, the positioning elastic piece body is provided with the supporting assembly, the supporting assembly is connected with the supporting plate, the multiple protruding strips are fixed to the supporting plate and make elastic contact with the pawl, heat transfer can be reduced, the heat exchange area with the surrounding environment is increased through the arrangement of the multiple protruding strips, the air flowing and heat dissipation effects are improved, and the service life of the positioning elastic piece is prolonged. According to the positioning elastic piece, heat is prevented from being transmitted to the main body of the positioning elastic piece body, meanwhile, the protruding strips have the anti-skid effect, the positioning elastic piece body can be matched with the pawls to work, the air holes are formed in the positioning elastic piece body, the reinforcing strips are fixed in the air holes, the heat dissipation effect is achieved, and the overall service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric drill accessories, and particularly relates to a high-temperature resistant positioning spring. Background Art

[0002] In the gear system at the front end of an electric drill, the heat dissipation performance of the high-temperature resistant positioning spring is crucial to its long-term stable operation. Therefore, high-temperature resistant materials are usually selected to maintain stable physical and chemical properties at high temperatures to avoid deformation or failure of the material due to high temperatures.

[0003] For example, a Chinese patent with publication number CN211803986U discloses a carrying mechanism for an electric drill, which includes an electric drill body, a drilling device fixedly connected to the left side of the electric drill body, a shell 1 fixedly connected to the right side of the electric drill body, a support rod movably connected to the interior of the shell 1, a pulley fixedly connected to the surface of the support rod, a shell 2 fixedly connected to the right side of the shell 1, a right end of the support rod passes through the shell 1 and extends to the interior of the shell 2, an inner ratchet located inside the shell 2 is sleeved on the outer side of the support rod, a pawl is hinged on the right side of the support rod, the top of the pawl contacts the inner wall of the inner ratchet, and a spring is fixedly connected to the right side of the support rod.

[0004] The above-mentioned patent discloses that a positioning spring is provided to support the pawl, thereby facilitating the resetting of the pawl and making the pawl contact the ratchet. However, the existing positioning spring still has some defects that need to be improved. The contact surface of the positioning spring and the ratchet is in contact. Although the contact stability is enhanced, the mechanical movement is accompanied by frictional heat generation. After long-term operation, it will inevitably be transmitted to the positioning spring itself, causing changes in its material properties. Therefore, it is not conducive to the heat dissipation of the positioning spring and reduces the service life of the positioning spring. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a high-temperature resistant positioning spring to solve the problems in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A high-temperature resistant positioning spring clip comprises a positioning spring clip body, an air vent is provided inside the positioning spring clip body, a reinforcement strip is fixedly connected to the inside of the air vent, a support assembly is provided at one end of the positioning spring clip body, one end of the support assembly is fixedly connected to a mounting plate, positioning grooves are provided on both sides of one end of the mounting plate, a positioning block is inserted into the positioning groove, one end of the positioning block is fixedly connected to a pulling frame, a clamping assembly is provided between the positioning block and the positioning groove, one end of the pulling frame is fixedly connected to the support plate, the end of the support plate away from the mounting plate is fixedly connected to a convex strip, and there are multiple convex strips.

[0008] As an optimal technical solution, grooves are provided on both sides of one end of the positioning spring body, a shock-absorbing spring and a damper are fixedly connected inside the groove, and a common end of the shock-absorbing spring and the damper is fixedly connected to one end of the mounting plate.

[0009] As an optimal technical solution, the clamping assembly includes a clamping hole, which is opened inside the positioning block, and the clamping block is movably connected inside the clamping hole. The clamping block is an arc-shaped structure, and one end of the clamping hole is fixedly connected to a reset spring, and the reset spring is arranged inside the mounting plate. One end of the reset spring on the clamping block is fixedly connected to a sliding rod, and the sliding rod is slidably connected to the inside of the mounting plate.

[0010] As an optimal technical solution, a sliding groove is opened inside the mounting plate, one side of the support plate is slidably connected to the inside of the sliding groove, a limiting block is fixedly connected to one side of the sliding groove on the mounting plate, and one side of the support plate is movably connected to one side of the limiting block.

[0011] As a preferred technical solution, a support rod is installed on one side of the positioning spring body through a connecting shaft, a pawl is rotatably connected to the support rod, and an inner ratchet is movably connected to the outside of the pawl.

[0012] In summary, the present invention has the following beneficial effects:

[0013] First, the utility model can reduce heat transfer by separating the positioning spring piece body from the pawl, installing the positioning spring piece body with a support assembly, connecting the support assembly to a support plate, and fixing a plurality of convex strips on the support plate to elastically contact with the pawl. The arrangement of the plurality of convex strips increases the heat exchange area with the surrounding environment, thereby increasing air flow and heat dissipation effect, and preventing heat from being transferred to the positioning spring piece body. At the same time, the convex strips also have an anti-slip effect, which is conducive to the cooperation of the positioning spring piece body with the pawl. In addition, the positioning spring piece body is provided with an air vent, and a reinforcement strip is fixed in the air vent, which also plays a role in heat dissipation, thereby extending the overall service life.

[0014] Second, the utility model fixes the positioning block on the support plate, opens a positioning groove on the mounting plate, and the positioning block is connected and fixed to the positioning groove through a clamping assembly, and the positioning block is connected to the pulling frame, so that the support plate can be removed from the mounting plate, which facilitates the replacement of the pawl contact surface of the positioning spring body and extends the service life of the positioning spring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram of one side of the main body of the positioning spring of the utility model;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0019] Figure 5 It is a schematic diagram of the cooperation structure between the positioning spring body and the pawl of the utility model.

[0020] Figure markings: 1. Positioning spring body; 2. Connecting shaft; 3. Mounting plate; 4. Support plate; 5. Raised strip; 6. Support assembly; 61. Groove; 62. Shock-absorbing spring; 63. Damper; 7. Positioning block; 8. Positioning groove; 9. Pulling frame; 10. Clamping assembly; 101. Clamping block; 102. Return spring; 103. Slide rod; 104. Clamping hole; 11. Slide groove; 12. Limiting block; 13. Ventilation hole; 14. Reinforcement strip; 16. Support rod; 17. Pawl; 18. Inner ratchet. DETAILED DESCRIPTION

[0021] Example

[0022] refer to Figures 1 to 5 , a high temperature resistant positioning spring piece described in this embodiment includes a positioning spring piece body 1, an air vent 13 is opened inside the positioning spring piece body 1, a reinforcement strip 14 is fixedly connected to the inside of the air vent 13, a support component 6 is provided at one end of the positioning spring piece body 1, one end of the support component 6 is fixedly connected to the mounting plate 3, positioning grooves 8 are opened on both sides of one end of the mounting plate 3, a positioning block 7 is inserted into the positioning groove 8, one end of the positioning block 7 is fixedly connected to a pulling frame 9, a clamping component 10 is provided between the positioning block 7 and the positioning groove 8, one end of the pulling frame 9 is fixedly connected to the support plate 4, and the support plate 4 is away from One end of the mounting plate 3 is fixedly connected to a convex strip 5, and there are multiple convex strips 5. The entire positioning spring is made of stainless steel. Stainless steel has good corrosion resistance and high temperature resistance, and can still maintain good mechanical properties and stability at high temperatures. Therefore, it is also often used to manufacture high-temperature resistant positioning springs. Through the above improvements, the heat accumulated in the positioning spring during operation is effectively reduced, and the degradation of material properties caused by high temperature, such as weakened elasticity and reduced hardness, is reduced, thereby significantly extending its service life, ensuring that the mechanism can still maintain high precision and high efficiency under long-term operation, and reducing failure rate and downtime.

[0023] refer to Figure 1, grooves 61 are provided on both sides of one end of the positioning spring body 1, and a shock-absorbing spring 62 and a damper 63 are fixedly connected inside the groove 61, and a common end of the shock-absorbing spring 62 and the damper 63 is fixedly connected to one end of the mounting plate 3; by providing a groove 61 on the positioning spring body 1, the shock-absorbing spring 62 and the damper 63 are installed in the groove 61, and the shock-absorbing spring 62 and the damper 63 are connected to the mounting plate 3, which plays a role of shock absorption and buffering. At the same time, due to the elastic contact between the positioning spring and the pawl 17, they will not always be in contact, thereby reducing heat transfer.

[0024] refer to Figure 4 The clamping assembly 10 includes a clamping hole 104, which is opened inside the positioning block 7. The clamping hole 104 is movably connected to a clamping block 101. The clamping block 101 is an arc-shaped structure. One end of the clamping hole 104 is fixedly connected to a reset spring 102. The reset spring 102 is arranged inside the mounting plate 3. One end of the reset spring 102 on the clamping block 101 is fixedly connected to a slide rod 103. The slide rod 103 is slidably connected to the inside of the mounting plate 3. By setting the clamping assembly 10 The positioning block 7 is inserted into the positioning groove 8, the positioning block 7 pushes the card block 101, the card block 101 pushes the reset spring 102, and after the card block 101 is aligned with the card hole 104, the reset spring 102 resets the card block 101 to connect with the card hole 104. After the card block 101 moves, it drives the slide bar 103 to slide, so that the card block 101 moves stably, which is conducive to the connection between the card block 101 and the card hole 104, thereby fixing the support plate 4 on the mounting plate 3, and the subsequent disassembly of the support plate 4 is also more convenient.

[0025] refer to Figure 2 and Figure 3 A slide groove 11 is provided inside the mounting plate 3, and one side of the support plate 4 is slidably connected to the inside of the slide groove 11. A limiting block 12 is fixedly connected to one side of the slide groove 11 on the mounting plate 3, and one side of the support plate 4 is movably connected to one side of the limiting block 12; by providing the slide groove 11 on the mounting plate 3, it is convenient to connect the support plate 4 to the mounting plate 3, which is beneficial to the use of the support plate 4.

[0026] refer to Figure 5 A support rod 16 is installed on one side of the positioning spring body 1 through the connecting shaft 2, and a pawl 17 is rotatably connected to the support rod 16, and an inner ratchet 18 is movably connected to the outer side of the pawl 17; by setting the support rod 16, the pawl 17, and the inner ratchet 18, it is convenient to use with the positioning spring.

[0027] Principle and advantages of use: the inner ratchet 18 rotates to push the pawl 17, the pawl 17 contacts the support plate 4, and a plurality of convex strips 5 are fixed on the support plate 4. After the support plate 4 is stressed, the shock-absorbing spring 62 and the damper 63 elastically damp the support plate 4 and the pawl 17, so that the positioning spring is in elastic contact with the pawl 17. Since they are not in constant contact, the heat transfer to the positioning spring body 1 can be reduced. In addition, due to the installation of a plurality of convex strips 5, the heat exchange area with the surrounding environment is increased to increase the air flow and heat dissipation effect, thereby avoiding heat transfer to the positioning spring body 1. At the same time, the convex strips 5 also have an anti-slip effect, which is conducive to positioning. The main body 1 of the positioning spring piece cooperates with the pawl 17, and an air vent 13 is provided on the main body 1 of the positioning spring piece. The reinforcement strip 14 is fixed in the air vent 13, which also plays a role in heat dissipation, thereby extending the overall service life. When the support plate 4 needs to be replaced, the pulling frame 9 is moved, and the pulling frame 9 drives the positioning block 7 to move, pushing the card block 101, and the card block 101 pushes the reset spring 102, so that the card block 101 leaves the card hole 104, and at the same time, one side of the pushing frame slides out of the slide groove 11, and the support plate 4 can be removed and replaced, which is convenient for the positioning spring piece main body 1 to replace the contact surface of the pawl 17, thereby extending the service life of the positioning spring piece main body 1.

Claims

1. A high temperature resistant positioning spring, comprising a positioning spring body (1), characterized in that: An air vent (13) is provided inside the positioning spring sheet body (1), and a reinforcing strip (14) is fixedly connected inside the air vent (13). A support assembly (6) is provided at one end of the positioning spring sheet body (1), and one end of the support assembly (6) is fixedly connected to the mounting plate (3). Positioning grooves (8) are provided on both sides of one end of the mounting plate (3), and a positioning block (7) is inserted into the positioning groove (8). One end of the positioning block (7) is fixedly connected to a pulling frame (9), and a clamping assembly (10) is provided between the positioning block (7) and the positioning groove (8). One end of the pulling frame (9) is fixedly connected to the support plate (4), and the end of the support plate (4) away from the mounting plate (3) is fixedly connected to a convex strip (5), and a plurality of convex strips (5) are provided.

2. The high temperature resistant positioning spring according to claim 1, characterized in that: Grooves (61) are provided on both sides of one end of the positioning spring body (1), a shock absorbing spring (62) and a damper (63) are fixedly connected inside the groove (61), and a common end of the shock absorbing spring (62) and the damper (63) is fixedly connected to one end of the mounting plate (3).

3. The high temperature resistant positioning spring according to claim 1, characterized in that: The clamping assembly (10) includes a clamping hole (104), the clamping hole (104) is provided inside the positioning block (7), a clamping block (101) is movably connected inside the clamping hole (104), the clamping block (101) is an arc-shaped structure, one end of the clamping hole (104) is fixedly connected to a reset spring (102), and the reset spring (102) is provided inside the mounting plate (3).

4. The high temperature resistant positioning spring according to claim 3, characterized in that: One end of the reset spring (102) on the clamping block (101) is fixedly connected to a slide bar (103), and the slide bar (103) is slidably connected to the inside of the mounting plate (3).

5. The high temperature resistant positioning spring according to claim 1, characterized in that: A sliding groove (11) is provided inside the mounting plate (3), and one side of the support plate (4) is slidably connected inside the sliding groove (11).

6. The high temperature resistant positioning spring according to claim 5, characterized in that: A limiting block (12) is fixedly connected to one side of the sliding groove (11) on the mounting plate (3), and one side of the supporting plate (4) is movably connected to one side of the limiting block (12).

7. The high temperature resistant positioning spring according to claim 1, characterized in that: A support rod (16) is installed on one side of the positioning spring sheet body (1) via a connecting shaft (2); a ratchet (17) is rotatably connected to the support rod (16); and an inner ratchet (18) is movably connected to the outside of the ratchet (17).

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