Portable brake pull-rod

Abstract

The invention relates to the field of brake pull rods, and provides a portable brake pull rod which comprises a first rod piece and a second rod piece, the first rod piece is provided with a clamping groove extending in the axial direction, the second rod piece is provided with a clamping plate clamped in the clamping groove, the clamping plate and the clamping groove are located on the same circumferential face, and the clamping plate is provided with a sliding block screwed with an adjusting rod rotationally connected in the first rod piece. The adjusting rod is used for driving the second rod piece to move in the axial direction relative to the first rod piece. Based on the structure, through the clamping matching of the clamping plate and the clamping groove which are located on the same circumferential surface, the outer diameter difference of the first rod piece and the second rod piece at the joint is eliminated, and the holding hand feeling is improved.

Description

Technical Field

[0001] This application relates to the field of switch lever technology, and more particularly to a portable switch lever. Background Technology

[0002] In power operation and maintenance, switch levers are frequently used to open and close switches and disconnectors. Existing switch levers typically employ a sleeve-type structure (a smaller outer diameter inner rod is inserted into a larger outer diameter outer rod, with a locking mechanism on the outer rod to secure the inner rod's position), allowing for adjustment of the overall length of the switch lever according to different operational scenarios. However, the difference in outer diameter between the outer and inner rods at the connection point in existing switch levers results in a poor grip. Summary of the Invention

[0003] The purpose of this application is to provide a portable lever, which aims to solve the problem of poor grip caused by the difference in outer diameter between the outer and inner rods in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: A portable lever includes a first lever and a second lever. The first lever has a slot extending axially, and the second lever has a plate that engages with the slot. The plate and the slot are located on the same circumferential surface. The plate is provided with a slider that engages with an adjusting rod rotatably connected to the first lever. The adjusting rod is used to drive the second lever to move axially relative to the first lever.

[0005] This application eliminates the difference in outer diameter between the first and second rods at the connection point by using a locking plate and a locking slot located on the same circumferential surface, thereby improving the grip feel.

[0006] Furthermore, the slots are evenly distributed along the circumference of the first member.

[0007] Furthermore, the slot is connected to the inner cavity of the first rod.

[0008] Furthermore, the end of the first member is provided with a mounting hole for inserting an adjusting rod.

[0009] Furthermore, the mounting holes are arranged coaxially with the inner cavity.

[0010] Furthermore, the diameter of the mounting hole is smaller than the diameter of the inner cavity.

[0011] Furthermore, a limiting ring located in the inner cavity is screwed onto the adjusting rod.

[0012] Furthermore, the outer end of the adjusting rod is provided with a knob that abuts against the end of the first rod.

[0013] Furthermore, the width of the card plate is the same as the width of the card slot.

[0014] Furthermore, the outer diameter of the slider is equal to the diameter of the inner cavity. Attached Figure Description

[0015] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and are not intended to limit the scope of this application. In the accompanying drawings: Figure 1 A schematic diagram of the portable lever provided in this application; Figure 2 A partial sectional view of the portable lever provided in this application; The following are the labeling elements in the figure: 10. First member; 11. Slot; 12. Inner cavity; 13. Mounting hole; 20. Second rod; 21. Clamping plate; 22. Slider; 23. First hook; 24. Second hook; 30. Adjusting rod; 31. Knob; 32. Limit ring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0017] The design concept of the portable lever described in this application is as follows: A portable lever includes a first lever 10 and a second lever 20. The first lever 10 has an axially extending slot 11, and the second lever 20 has a locking plate 21 that engages with the slot 11. The locking plate 21 and the slot 11 are located on the same circumferential surface. The locking plate 21 is provided with a slider 22 that engages with an adjusting rod 30 rotatably connected to the first lever 10. The adjusting rod 30 is used to drive the second lever 20 to move axially relative to the first lever 10.

[0018] In the above structure, the engagement between the card plate 21 and the card slot 11 located on the same circumferential surface eliminates the difference in outer diameter between the first rod 10 and the second rod 20 at the connection point, thereby improving the grip feel.

[0019] Embodiments of the portable lever described in this application: A portable lever includes a first lever 10, a second lever 20, and an adjusting rod 30. The first lever 10 has an axially extending slot 11, and the second lever 20 has an axially extending locking plate 21. The locking plate 21 is slidably engaged with the inside of the slot 11. The locking plate 21 and the slot 11 are located on the same circumferential surface. A slider 22 is provided on the locking plate 21. The slider 22 is located in the inner cavity 12 of the first lever 10 and is screwed into the adjusting rod 30, which is rotatably inserted into the inner cavity 12 of the first lever 10. The adjusting rod 30 is used to drive the second lever 20 to move axially relative to the first lever 10.

[0020] The first rod 10 is constructed as a longitudinally elongated circular rod. The first rod 10 is made of insulating material and has a coaxially arranged inner cavity 12. The inner cavity 12 is circular in cross-section and passes through the upper end of the first rod 10. A coaxially arranged mounting hole 13 is provided at the lower end of the first rod 10. The mounting hole 13, the inner cavity 12 and the first rod 10 are coaxially arranged. The mounting hole 13 is circular in cross-section and the diameter of the mounting hole 13 is smaller than the diameter of the inner cavity 12.

[0021] The slot 11 is formed on the outer wall of the first rod 10 and extends along the axial direction of the first rod 10. The slot 11 communicates with the inner cavity 12 of the first rod 10, and two slots 11 are evenly arranged along the circumference of the first rod 10. The slot 11 penetrates the upper end of the first rod 10 and extends towards the lower end of the first rod 10 to the inner port of the mounting hole 13.

[0022] The second rod 20 is constructed as a longitudinally elongated circular rod. The second rod 20 is made of insulating material. The second rod 20 and the first rod 10 are arranged coaxially and have the same outer diameter.

[0023] The outer diameter of the clamping plate 21 is equal to the outer diameter of the second rod 20. The clamping plate 21 extends along the axial direction of the second rod 20. The clamping plate 21 and the clamping groove 11 maintain a one-to-one correspondence. The clamping plate 21 can slide along the axial direction and be clamped into the inside of the clamping groove 11. The width of the clamping plate 21 is equal to the width of the clamping groove 11. A slider 22 is fixed between the ends of the two clamping plates 21. The slider 22 is constructed as a cylinder. The slider 22 can slide along the axial direction and be inserted into the inner cavity 12 of the first rod 10. The outer diameter of the slider 22 is equal to the diameter of the inner cavity 12. The adjusting rod 30 passes through the axis of the slider 22 and forms a threaded connection with the slider 22.

[0024] The card plate 21 and the card slot 11 are located on the same circumferential surface. When the second rod 20 is inserted into the first rod 10, the connection between the two forms a complete circumferential surface.

[0025] The adjusting rod 30 passes through the inner cavity 12 of the first rod 10 and is coaxial with the first rod 10. Specifically, the adjusting rod 30 passes through the mounting hole 13 into the inner cavity 12. A disc-shaped knob 31 is fixedly connected to the outer end of the adjusting rod 30. The outer diameter of the knob 31 is larger than the outer diameter of the first rod 10, and the knob 31 abuts against the lower end of the first rod 10 (that is, the outer port of the mounting hole 13). A limiting ring 32 is screwed onto the adjusting rod 30. The limiting ring 32 is arranged as a whole in the inner cavity 12. Specifically, the limiting ring 32 abuts against the inner port of the mounting hole 13.

[0026] It should be noted that the knob 31 and the limiting ring 32 work together to lock the adjusting rod 30 rotatably onto the first rod 10. When the adjusting rod 30 rotates, it can drive the slider 22 to move along the axial direction of the first rod 10, which in turn drives the second rod 20 to move along the axial direction of the first rod 10, ultimately achieving the purpose of changing the overall length of the portable lever.

[0027] In this embodiment, a first hook 23 and a second hook 24 are fixedly connected to the upper end of the second rod 20. The opening of the first hook 23 faces the side where the knob 31 is located, while the opening of the second hook 24 faces away from the side where the knob 31 is located. The first hook 23 is used to pull the switch or knife switch, while the second hook 24 is used to push the switch or knife switch.

[0028] This application eliminates the difference in outer diameter between the first rod 10 and the second rod 20 at the connection point by engaging the locking plate 21 and the locking groove 11 located on the same circumferential surface, thereby improving the grip feel.

[0029] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable lever, characterized in that, The portable pull lever comprises a first rod and a second rod, the first rod has clamping slots extending along the axial direction, the second rod has clamping plates clamped in the clamping slots, the clamping plates are located on the same circumferential surface as the clamping slots, the clamping plates are provided with sliding blocks screwed with adjusting rods rotatingly connected in the first rod, and the adjusting rods are used to drive the second rod to move along the axial direction relative to the first rod.

2. The portable pull lever according to claim 1, wherein the clamping slots are uniformly distributed along the circumference of the first rod.

3. The portable pull lever according to claim 2, wherein the clamping slots are in communication with the inner cavity of the first rod.

4. The portable pull lever according to claim 3, wherein the end of the first rod is provided with a mounting hole for penetrating the adjusting rod.

5. The portable pull lever according to claim 4, wherein the mounting hole is coaxially arranged with the inner cavity.

6. The portable pull lever according to claim 5, wherein the diameter of the mounting hole is smaller than the diameter of the inner cavity.

7. The portable pull lever according to claim 6, wherein the adjusting rod is screwed with a limiting ring located in the inner cavity.

8. The portable pull lever according to claim 7, wherein the outer end of the adjusting rod is provided with a knob abutting against the end of the first rod.

9. The portable pull lever according to claim 8, wherein the width of the clamping plate is equal to the width of the clamping slot.

10. The portable pull lever according to claim 9, wherein the outer diameter of the sliding block is equal to the diameter of the inner cavity.

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