Convenient brake pull-rod

Abstract

The utility model relates to a portable brake pull-rod, which comprises a brake pull-rod body, the brake pull-rod body is composed of a handheld rod, a middle rod and a supporting rod, the left end of the middle rod is embedded in the handheld rod, the left end of the supporting rod is embedded in the middle rod, the right ends of the handheld rod and the middle rod are rotatably provided with fastening sleeves, the middle rod and the supporting rod are fixedly provided with positioning convex blocks, and the positioning convex blocks are fixedly connected with the handheld rod and the supporting rod. Positioning holes are formed in the positions, corresponding to the positioning protruding blocks, of inner cavities of the handheld rod and the middle rod, the right end of the supporting rod is connected with a brake pull-rod head, brake pull-hooks are fixedly arranged on the two sides of the brake pull-rod head, after the brake pull-rod body extends, the fastening sleeve can be manually rotated, the brake pull-rod body can be conveniently fixed, and the brake pull-rod body forms a whole with the proper length. And the insulating body is arranged at the joint of the brake pull-rod body and the brake pull-rod head, so that the safety in use is improved, the brake pull-rod body is contracted after being used, the brake pull-rod is convenient for people to carry, the stability of the brake pull-rod body after being contracted is ensured, and the brake pull-rod body is prevented from sliding outwards in the carrying process.

Description

Technical Field

[0001] The utility model relates to a portable switch rod, belonging to the technical field of switch rods. Background Art

[0002] When electric power installation and maintenance personnel are working, they often need to perform opening and closing operations on switches and knife switches installed at different heights. At this time, a professional tool like a switch rod is required.

[0003] The utility model with the patent number 201821380021.0 provides a portable switch rod. By pressing the movable button into the groove opened on the outer surface of the inner rod, the inner rod slides out from the circular through-hole at the bottom of the outer rod. The length of the switch rod is adjusted by adjusting the position of the movable button in the circular through-hole opened on the front surface of the outer rod. The rotating rod rotates to make the rotating shaft and the connecting piece outside the connecting rod rotate, and the rotating rod is fixed by tightening the fixing knob. The operator holds the handle to close the switch with the barb. The length of this switch rod is much shorter than that of a general integral switch rod, and it is more convenient to store than a threaded splicing switch rod, and there is no situation of component loss, so it is convenient to carry; however, a longer length is often required at the place where the switch rod is used. For convenience, the switch rod needs to be made into a retractable shape. However, the existing retractable switch rod has no fixing effect after being extended, resulting in unstable joints and being prone to shrinkage during use, which is inconvenient to use. Summary of the Utility Model

[0004] Aiming at the problems in the related art, the utility model proposes a portable switch rod to overcome the above-mentioned technical problems existing in the existing related art.

[0005] For this reason, the specific technical solution adopted by the utility model is as follows:

[0006] A portable switch rod includes a switch rod body, which is composed of a hand-held rod, a middle rod, and a support rod. The left end of the middle rod is embedded in the hand-held rod, the left end of the support rod is embedded in the middle rod. Fastening sleeves are rotatably provided at the right ends of the hand-held rod and the middle rod. Positioning protrusions are fixedly provided on the middle rod and the support rod. Positioning holes are opened at the positions corresponding to the positioning protrusions in the inner cavities of the hand-held rod and the middle rod. The right end of the support rod is connected with a switch rod head, and switch hooks are fixedly provided on both sides of the switch rod head.

[0007] Preferably, a plug block is rotatably provided at the left end of the hand-held rod, a fixing ring is fixedly provided on the plug block, an insulating sleeve is sleeved on the outer side of the hand-held rod, and anti-slip textures are uniformly provided on the insulating sleeve.

[0008] Preferably, connection sections are provided on the outer sides of the right ends of the hand-held rod and the middle rod. The fastening sleeves are fixedly connected to the connection sections through threads, and fastening rings are provided in the inner cavities of the fastening sleeves.

[0009] Preferably, the fastening ring is sleeved outside the middle rod and the support rod, and the cross-section of the fastening ring is conical. The left end of the fastening ring is embedded into the openings of the hand-held rod and the middle rod, and the right end is located inside the fastening sleeve.

[0010] Preferably, a guiding groove is formed on one side of the inner cavities of the hand-held rod and the middle rod. At the corresponding positions of the left ends of the middle rod and the support rod, guiding blocks are fixedly provided, and the guiding blocks are slidably connected with the guiding groove.

[0011] Preferably, a groove is formed on the side of the middle rod and the support rod away from the guiding block. One end of the groove is fixedly provided with a spring piece, and the positioning convex block is fixedly arranged at the movable end of the spring piece.

[0012] Preferably, the switch-pulling rod head includes a ceramic sleeve, the ceramic sleeve is fixedly connected with the right end of the support rod through threads, and insulating convex rings are uniformly fixedly arranged on the outer side of the ceramic sleeve.

[0013] Preferably, a fixing block is fixedly arranged at the right end of the switch-pulling rod head, and switch-pulling hooks are fixedly arranged at both ends of the fixing block, and the directions of the switch-pulling hooks are opposite.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By providing the fastening sleeve, during use, the middle rod and the support rod can be pulled out from the hand-held rod. When the length is appropriate, the fastening sleeve can be manually rotated to fix the middle rod and the support rod, so that the switch-pulling rod body forms an integral body with a suitable length, avoiding the sliding of the switch-pulling rod body during switch-pulling, and making the use more convenient;

[0016] 2. By providing the positioning holes, after use, the support rod and the middle rod are retracted into the hand-held rod, which is convenient for people to carry. Moreover, when it is completely retracted, the positioning convex block will correspond to the positioning hole, so that the positioning convex block enters the positioning hole, ensuring the stability of the switch-pulling rod body after contraction and avoiding outward sliding during carrying;

[0017] 3. By providing the switch-pulling rod head, the switch-pulling rod head can be temporarily fixedly connected with the switch-pulling rod body. The operations of opening and closing the switch can be conveniently realized through the switch-pulling hooks, improving its practicability. Moreover, the connection part is insulating ceramics, improving the safety during use. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the specific embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0019] Figure 1 It is the overall structural schematic diagram of a portable switch-pulling rod of the present utility model;

[0020] Figure 2Schematic diagram of the fastening sleeve structure of a portable switch-pulling rod of the present utility model;

[0021] Figure 3 Cross-sectional view structure diagram of the hand-held rod of a portable switch-pulling rod of the present utility model;

[0022] Figure 4 is a portable switch-pulling rod of the present utility model Figure 3 Enlarged view of part A in;

[0023] Reference numerals in the figure: 1, switch-pulling rod body; 2, hand-held rod; 3, middle rod; 4, support rod; 5, fastening sleeve; 6, positioning convex block; 7, positioning hole; 8, switch-pulling rod head; 9, switch-pulling hook; 10, plug block; 11, insulating sleeve; 12, connecting section; 13, fastening ring; 14, guiding groove; 15, guiding block; 16, groove; 17, spring piece; 18, ceramic sleeve; 19, fixing block. Specific embodiments

[0024] To further illustrate the embodiments, the present utility model provides drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present utility model, a portable switch-pulling rod is provided.

[0026] Embodiment 1

[0027] As Figures 1-4As shown in the figure, a portable switch rod according to an embodiment of the present invention includes a switch rod body 1, the switch rod body 1 is composed of a hand-held rod 2, a middle rod 3, and a support rod 4. The left end of the middle rod 3 is embedded in the hand-held rod 2, and the left end of the support rod 4 is embedded in the middle rod 3. Fastening sleeves 5 are rotatably provided at the right ends of the hand-held rod 2 and the middle rod 3. Positioning bumps 6 are fixedly provided on the middle rod 3 and the support rod 4. Positioning holes 7 are opened at positions corresponding to the positioning bumps 6 in the inner cavities of the hand-held rod 2 and the middle rod 3. The right end of the support rod 4 is connected with a switch rod head 8. Pulling hooks 9 are fixedly provided on both sides of the switch rod head 8. A blocking block 10 is rotatably provided at the left end of the hand-held rod 2. A fixing ring is fixedly provided on the blocking block 10. An insulating sleeve 11 is sleeved on the outer side of the hand-held rod 2, and anti-slip textures are uniformly provided on the insulating sleeve 11. The blocking block 10 blocks the left end of the hand-held rod 2 to prevent water from entering, and the insulating sleeve 11 can improve the insulation ability of the switch rod body 1. A guiding groove 14 is opened on one side of the inner cavities of the hand-held rod 2 and the middle rod 3. Guiding blocks 15 are fixedly provided at positions corresponding to the guiding groove 14 at the left ends of the middle rod 3 and the support rod 4, and the guiding blocks 15 are slidably connected with the guiding groove 14, which can ensure that the middle rod 3 and the support rod 4 will not rotate during movement, so as to ensure that the positioning bump 6 and the positioning hole 7 are always opposite. Grooves 16 are opened on the sides of the middle rod 3 and the support rod 4 away from the guiding blocks 15. One end of the groove 16 is fixedly provided with a spring piece 17. The positioning bump 6 is fixedly arranged at the movable end of the spring piece 17. After the middle rod 3 completely enters the inner cavity of the hand-held rod 2, the positioning bump 6 will enter the positioning hole 7 under the action of the spring piece 17, so as to prevent the middle rod 3 from sliding outwards.

[0028] Embodiment 2

[0029] As Figures 1-4 As shown in the figure, a portable switch rod according to an embodiment of the present invention includes a switch rod body 1, the switch rod body 1 is composed of a hand-held rod 2, a middle rod 3, and a support rod 4. The left end of the middle rod 3 is embedded in the hand-held rod 2, and the left end of the support rod 4 is embedded in the middle rod 3. Fastening sleeves 5 are rotatably provided at the right ends of the hand-held rod 2 and the middle rod 3. Positioning bumps 6 are fixedly provided on the middle rod 3 and the support rod 4. Positioning holes 7 are opened at positions corresponding to the positioning bumps 6 in the inner cavities of the hand-held rod 2 and the middle rod 3. The right end of the support rod 4 is connected with a switch rod head 8. Pulling hooks 9 are fixedly provided on both sides of the switch rod head 8. Connecting sections 12 are provided on the outer sides of the right ends of the hand-held rod 2 and the middle rod 3. The fastening sleeves 5 are fixedly connected to the connecting sections 12 by threads. A fastening ring 13 is provided in the inner cavity of the fastening sleeve 5. The fastening ring 13 is sleeved on the outer sides of the middle rod 3 and the support rod 4, and the cross section of the fastening ring 13 is tapered. The left end of the fastening ring 13 is embedded in the openings of the hand-held rod 2 and the middle rod 3, and the right end is located in the fastening sleeve 5. After the middle rod 3 or the support rod 4 is pulled out, the fastening sleeve 5 can be manually rotated to move leftwards, so as to push the fastening ring 13 leftwards and enter between the middle rod 3 and the opening of the hand-held rod 2, better clamping and fixing the middle rod 3 to ensure the stability of the switch rod after elongation.

[0030] Embodiment III

[0031] As Figures 1-4 shown, a portable switch rod according to an embodiment of the present utility model includes a switch rod body 1, and the switch rod body 1 is composed of a hand-held rod 2, a middle rod 3, and a support rod 4. The left end of the middle rod 3 is embedded in the hand-held rod 2, the left end of the support rod 4 is embedded in the middle rod 3, fastening sleeves 5 are rotatably arranged at the right ends of the hand-held rod 2 and the middle rod 3, positioning bumps 6 are fixedly arranged on the middle rod 3 and the support rod 4, positioning holes 7 are opened at positions corresponding to the positioning bumps 6 in the inner cavities of the hand-held rod 2 and the middle rod 3, a switch rod head 8 is connected to the right end of the support rod 4, switch hooks 9 are fixedly arranged on both sides of the switch rod head 8, the switch rod head 8 includes a ceramic sleeve 18, the ceramic sleeve 18 is fixedly connected to the right end of the support rod 4 by threads, and insulating convex rings are uniformly fixedly arranged on the outer side of the ceramic sleeve 18. A fixing block 19 is fixedly arranged at the right end of the switch rod head 8, the switch hooks 9 are fixedly arranged at both ends of the fixing block 19, and the directions of the switch hooks 9 are opposite. The ceramic sleeve 18 can better provide insulation ability for the switch rod body 1 and ensure safety during switching on, and the switch hooks 9 with opposite directions can better achieve the purpose of opening and closing the switch.

[0032] In summary, by means of the above technical solution of the present utility model, when this device is in use, the middle rod 3 and the support rod 4 are pulled out from the hand-held rod 2. When the length is appropriate, the fastening sleeve 5 can be manually rotated to fix the middle rod 3 and the support rod 4, so that the switch rod body 1 forms an integral body with a suitable length, avoiding the telescopic situation of the switch rod body 1 during switching. The switch rod head 8 is fixedly connected to the switch rod body 1, and the operations of opening and closing the switch are conveniently realized through the switch hooks 9, improving its practicability. Moreover, the connection part is insulating ceramics, improving safety during use. After use, the support rod 4 and the middle rod 3 are retracted into the hand-held rod 2 again, which is convenient for people to carry. And when it is completely retracted, the positioning bump 6 will correspond to the positioning hole 7, so that the positioning bump 6 enters the positioning hole 7, ensuring the stability of the switch rod body 1 after contraction and avoiding outward sliding during carrying.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A portable switch rod, comprising a switch rod body (1), characterized in that: The switch-pulling rod body (1) is composed of a hand-held rod (2), a middle rod (3), and a support rod (4). The left end of the middle rod (3) is embedded in the hand-held rod (2), and the left end of the support rod (4) is embedded in the middle rod (3). Fastening sleeves (5) are rotatably provided at the right ends of the hand-held rod (2) and the middle rod (3). Positioning bumps (6) are fixedly provided on the middle rod (3) and the support rod (4). Positioning holes (7) are opened at the positions corresponding to the positioning bumps (6) in the inner cavities of the hand-held rod (2) and the middle rod (3). The right end of the support rod (4) is connected with a switch-pulling rod head (8), and switch-pulling hooks (9) are fixedly provided on both sides of the switch-pulling rod head (8).

2. The portable switch rod according to claim 1, characterized in that: A plug block (10) is rotatably provided at the left end of the hand-held rod (2). A fixing ring is fixedly provided on the plug block (10). An insulating sleeve (11) is sleeved on the outer side of the hand-held rod (2), and anti-slip textures are uniformly provided on the insulating sleeve (11).

3. The portable switch rod according to claim 2, wherein: Connection sections (12) are provided on the outer sides of the right ends of the hand-held rod (2) and the middle rod (3). The fastening sleeves (5) are fixedly connected to the connection sections (12) through threads. A fastening ring (13) is provided in the inner cavity of the fastening sleeve (5).

4. The portable switch rod according to claim 3, wherein: The fastening ring (13) is sleeved on the outer sides of the middle rod (3) and the support rod (4), and the cross-section of the fastening ring (13) is tapered. The left end of the fastening ring (13) is embedded in the openings of the hand-held rod (2) and the middle rod (3), and the right end is located in the fastening sleeve (5).

5. The portable switch rod according to claim 4, characterized in that: Guide grooves (14) are opened on one side of the inner cavities of the hand-held rod (2) and the middle rod (3). Guide blocks (15) are fixedly provided at the positions corresponding to the guide grooves (14) at the left ends of the middle rod (3) and the support rod (4), and the guide blocks (15) are slidably connected with the guide grooves (14).

6. The portable switch rod according to claim 5, characterized in that: Grooves (16) are opened on the sides of the middle rod (3) and the support rod (4) away from the guide blocks (15). A spring piece (17) is fixedly provided at one end of the groove (16), and the positioning bump (6) is fixedly provided at the movable end of the spring piece (17).

7. The portable switch rod according to claim 6, wherein: The switch-pulling rod head (8) includes a ceramic sleeve (18). The ceramic sleeve (18) is fixedly connected to the right end of the support rod (4) through threads, and insulating convex rings are uniformly fixedly provided on the outer side of the ceramic sleeve (18).

8. A portable switch rod according to claim 7, characterized in that: A fixed block (19) is fixedly provided at the right end of the switch-pulling rod head (8). The switch-pulling hooks (9) are fixedly provided at both ends of the fixed block (19), and the directions of the switch-pulling hooks (9) are opposite.

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