Spanner special for spacer
By improving the screw-on clamping structure and utilizing the design of limiting grooves, slots, and springs, the problem of unstable grip caused by sleeve rotation is solved, and the spacer bar claw clamp is stably clamped, which facilitates the installation of the spacer bar.
Patent Information
- Application Number
- CN202520206913.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The existing spacer wrench has a sleeve that easily rotates when tightening, making it difficult to hold stably and affecting the effective clamping of the spacer claw, which causes inconvenience to the installation work.
A screw-and-grip structure was designed, comprising an installation rod, a slide rod, a lead screw, a U-shaped locking block, and a rubber damping sleeve. Through the cooperation of the limiting groove, the locking groove, and the spring, the sleeve and the insertion post are prevented from rotating together, thus achieving a stable grip.
This effectively avoids the synchronous rotation of the sleeve and the insertion post, ensuring stable clamping of the spacer bar claw and facilitating the installation of the spacer bar.
Smart Images

Figure CN223834418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of spacer bar installation tools, specifically a special wrench for spacers. Background Technology
[0002] With the continuous development of the economy, the market demand for electricity is constantly increasing, and a large number of power lines are being built. During the installation of cables, spacers are often used to separate conductors. The main purpose of spacers is to restrict the relative movement between sub-conductors and maintain the geometry of the split conductors under normal operating conditions. When installing spacers, a wrench is used to press and close the claw clamps to facilitate the installation of the spacer claw clamps' locking pins, allowing the spacers to be installed on the cables. The prior art discloses a special wrench for spacers with authorization announcement number CN219901948U, which includes a threaded rod with a post at the bottom end of the threaded rod and a sleeve on the outer wall of the threaded rod. A U-shaped connecting groove is opened at the bottom of the post, and a lower movable stop block is rotatably connected between the front and rear sides of the inner wall of the U-shaped connecting groove. An upper circular stop block is provided at the bottom of the sleeve, and a U-shaped seat is provided at the top of the sleeve. A rotating block is rotatably connected between the front and rear sides of the inner wall of the U-shaped seat. A rocker arm is movably connected to the left side of the rotating block near the top, and the right end of the rocker arm passes through the left side of the rotating block. This spacer wrench features a rocker arm that is movably connected to a U-shaped seat via a rotating block. This allows the rocker arm to remain parallel to the sleeve when not in use, making it easy for users to store the spacer wrench in their bags. When taking it out, it prevents other tools from being hooked out, thus preventing safety accidents caused by tools being pulled out and falling.
[0003] However, it was found in use that the above design causes the sleeve to rotate during screwing, making it difficult to hold the sleeve and maintain stability. This can easily lead to the sleeve and the insert rotating together, making it difficult to effectively clamp the spacer claw and causing many inconveniences to the installation of the spacer. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a special wrench for spacers, which facilitates stable gripping of the sleeve, effectively prevents the sleeve and the insert from rotating together, facilitates effective clamping of the spacer claw, and facilitates the installation of the spacer, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a special wrench for spacer bars, comprising an installation rod, a first pressure plate fixedly installed at the bottom of the installation rod, a circular groove formed at the bottom of the first pressure plate extending into the installation rod, a sliding rod slidably installed within the circular groove, an insert rod fixedly installed at the bottom end of the sliding rod extending out of the circular groove, a receiving groove penetrating the insert rod, a second pressure plate rotatably installed within the receiving groove, a first round rod fixedly installed within the receiving groove, the second pressure plate rotatably sleeved on the first round rod, a lead screw threaded onto the sliding rod, a U-shaped locking block rotatably installed at the top of the installation rod, the top end of the lead screw fixed to the bottom of the U-shaped locking block, a rotating plate rotatably installed within the U-shaped locking block, a pull rod fixedly installed on one side of the rotating plate, and a second round rod fixedly installed within the U-shaped locking block, the second round rod rotatably penetrating the rotating plate.
[0006] To prevent the lever from wobbling up and down when rotating:
[0007] As a further improvement to the above technical solution: the rotating plate also includes two slots, which are opened on the edge of the rotating plate. The U-shaped block has a cavity, in which a slide plate is slidably installed. A locking rod is fixedly installed on the top of the slide plate, and the top of the locking rod is slidably installed in the corresponding slot. Two springs are provided in the cavity, and the top of the springs contacts the slide plate. A rectangular through groove runs through one side of the inner wall of the cavity, and a slider slides through the rectangular through groove. The slider is fixed to one side of the slide plate.
[0008] The beneficial effects of this improvement are: by setting it up in this way, it is easier to fix the tie rod, which can effectively prevent the tie rod from wobbling up and down when rotating, and thus make it easier to apply force to rotate the lead screw.
[0009] To facilitate the support and limiting of the lead screw:
[0010] As a further improvement to the above technical solution: a first through hole is provided on the top inner wall of the circular groove, and the lead screw rotates through the first through hole.
[0011] The beneficial effect of this improvement is that by setting the first through hole, it is easier to support and limit the lead screw.
[0012] To prevent the slide bar from dislodging from the circular groove:
[0013] As a further improvement to the above technical solution: limit grooves are provided on both inner walls of the circular groove, and limit blocks are slidably installed in the limit grooves, with the limit blocks fixed on the slide rod.
[0014] The beneficial effect of this improvement is that by setting a limiting groove and a limiting block, it is easier to prevent the slide rod from dislodging from the circular groove.
[0015] To facilitate the lead screw driving the slide bar to rise and fall:
[0016] As a further improvement to the above technical solution: the slide bar has a threaded through hole, and the lead screw is threadedly installed in the threaded through hole.
[0017] The beneficial effect of this improvement is that by setting a threaded through hole, it is easier for the lead screw to drive the slide bar to rise and fall.
[0018] To prevent the second pressure plate from rotating freely on the first round rod:
[0019] As a further improvement to the above technical solution: an anti-slip sleeve is fixedly sleeved on the mounting rod, the anti-slip sleeve is made of rubber, and a rubber damping sleeve is provided on the second pressure plate, the rubber damping sleeve being rotatably sleeved on the first round rod.
[0020] The beneficial effect of this improvement is that by setting a rubber damping sleeve, the second pressure plate can be prevented from rotating freely on the first round rod.
[0021] To facilitate the movement of the lever in and out of the chamber:
[0022] As a further improvement to the above technical solution: a second through hole is provided on the top inner wall of the chamber, and the locking rod slides through the second through hole.
[0023] The beneficial effect of this improvement is that by setting a second through hole, it is easier for the clamp rod to enter and exit the chamber.
[0024] To facilitate limiting the spring:
[0025] As a further improvement to the above technical solution: two limiting rods are fixedly installed in the cavity, and the limiting rods slide through the slide plate and the corresponding spring.
[0026] The beneficial effect of this improvement is that by setting a limit rod, it is easier to limit the spring.
[0027] The beneficial effects of this utility model are as follows: the simple screw-clamping structure facilitates stable gripping of the sleeve, effectively avoiding the problem of the sleeve and the insertion post rotating together, thus facilitating effective clamping of the spacer bar claw and making it easier to install the spacer bar. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the front sectional view of the present invention;
[0029] Figure 2 This utility model Figure 1 A magnified structural diagram of part A in the middle;
[0030] Figure 3 This utility model Figure 1A magnified structural diagram of part B in the middle section;
[0031] Figure 4 This is a three-dimensional sectional view of the assembly structure of the mounting rod and pressure plate in this utility model;
[0032] Figure 5 This is a three-dimensional cross-sectional view of the U-shaped card block in this utility model.
[0033] In the diagram: 1. Mounting rod; 2. Circular groove; 3. First pressure plate; 4. Slide rod; 5. Insert rod; 6. Storage groove; 7. Second pressure plate; 8. First circular rod; 9. Lead screw; 10. U-shaped locking block; 11. Rotating plate; 12. Second circular rod; 13. Pull rod; 14. Locking groove; 15. Chamber; 16. Slide plate; 17. Locking rod; 18. Spring; 19. Rectangular through groove; 20. Slider. Detailed Implementation
[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0035] like Figure 1-5As shown, a special wrench for spacers includes an installation rod 1. A first pressure plate 3 is fixedly installed at the bottom of the installation rod 1. A circular groove 2 is formed at the bottom of the first pressure plate 3, extending into the installation rod 1. A sliding rod 4 is slidably installed in the circular groove 2. The bottom end of the sliding rod 4 extends out of the circular groove 2 and is fixedly installed with an insertion rod 5. A storage groove 6 passes through the insertion rod 5. A second pressure plate 7 is rotatably installed in the storage groove 6. A first circular rod 8 is fixedly installed in the storage groove 6. The second pressure plate 7 is rotatably sleeved on the first circular rod 8. A lead screw 9 is threaded onto the sliding rod 4. A U-shaped locking block 10 is rotatably installed at the top of the installation rod 1. The top end of the lead screw 9 is fixed to the bottom of the U-shaped locking block 10. The U-shaped locking block 10 rotates within the U-shaped locking block. A rotating plate 11 is installed, and a pull rod 13 is fixedly installed on one side of the rotating plate 11. A second round rod 12 is fixedly installed inside the U-shaped clamping block 10. The second round rod 12 rotates through the rotating plate 11. Through a simple screw-clamping structure, it is easy to stably hold the sleeve, which can effectively avoid the problem of the sleeve and the insertion post rotating together. This facilitates the effective clamping of the spacer bar claw, thus facilitating the installation of the spacer bar. The rotating plate 11 also includes two slots 14, which are opened on the edge of the rotating plate 11. A chamber 15 is opened on the U-shaped clamping block 10. A slide plate 16 is slidably installed in the chamber 15. A clamping rod 17 is fixedly installed on the top of the slide plate 16. The top end of the clamping rod 17 is slidably installed in the corresponding slot 14. Two springs 18 are provided inside the cavity 15. The top of the springs 18 contacts the slide plate 16. A rectangular through groove 19 is formed through one side of the inner wall of the cavity 15. A slider 20 slides through the rectangular through groove 19 and is fixed to one side of the slide plate 16. This arrangement facilitates the fixation of the pull rod 13 and effectively prevents the pull rod 13 from wobbling up and down during rotation, thus facilitating the rotation of the lead screw 9. A first through hole is formed through the top inner wall of the circular groove 2. The lead screw 9 rotates through the first through hole. The first through hole facilitates the support and limitation of the lead screw 9. Limit grooves are formed on both sides of the inner wall of the circular groove 2. Limit blocks are slidably installed in the limit grooves and fixed to the slide rod 4. The sliding rod 4 is prevented from disengaging from the circular groove 2 by a slot and a limiting block. A threaded through hole is provided on the sliding rod 4, and the lead screw 9 is threaded into this hole. The threaded through hole facilitates the lead screw 9 in driving the sliding rod 4 to rise and fall. An anti-slip sleeve made of rubber is fixedly fitted onto the mounting rod 1. A rubber damping sleeve is provided on the second pressure plate 7, which is rotatably fitted onto the first circular rod 8. This rubber damping sleeve prevents the second pressure plate 7 from rotating freely on the first circular rod 8. A second through hole is provided on the top inner wall of the chamber 15, through which the locking rod 17 slides. The second through hole facilitates the entry and exit of the locking rod 17 into and out of the chamber 15. Two limiting rods are fixedly installed inside the chamber 15.The limiting rod slides through the slide plate 16 and the corresponding spring 18, thus facilitating the limiting of the spring 18.
[0036] The working principle of this utility model is as follows: In use, first, rotate the second pressure plate 7 into the storage slot 6. Then, insert the rod 5 through the through hole of the spacer claw clamp. Next, rotate the second pressure plate 7 to a horizontal position. Then, pull the mounting rod 1 upwards, so that the second pressure plate 7 rests against the bottom of the spacer claw clamp. Then, hold the mounting rod 1 and pull the slider 20. The slider 20 causes the slide plate 16 to slide and descend within the chamber 15, compressing the spring 18. Simultaneously, the slide plate 16 causes the locking rod 17 to slide out of the corresponding slot 14, releasing the fixation of the rotating plate 11. Then, rotate the pull rod 13, causing the rotating plate 11 to rotate on the U-shaped locking block 10, so that the pull rod 13 rotates to a horizontal position. Then, release the slider 20, the spring 18 pops out, causing the slide plate 16 to be lifted. The locking rod 17 is then driven to slide into the corresponding slot 14, and the rotating plate 11 is re-fixed. Through this setting, thus… This design facilitates the fixing of the pull rod 13, effectively preventing it from wobbling up and down during rotation. This allows for easier force application to rotate the lead screw 9. Laterally rotating the pull rod 13 causes the rotating plate 11 to rotate, which in turn rotates the U-shaped locking block 10. The U-shaped locking block 10 then rotates the lead screw 9, causing the sliding rod 4 to slide into the circular groove 2. The sliding rod 4 then causes the insertion rod 5 to rise, which in turn causes the second pressure plate 7 to press upwards against the spacer bar's claw clamp. This brings the first pressure plate 3 and the second pressure plate 7 closer together until the first pressure plate 3 presses firmly against the spacer bar's claw clamp, closing it. A pin can then be inserted into the spacer bar's claw clamp, fixing the spacer bar to the cable. This design facilitates stable gripping of the sleeve, effectively preventing the sleeve and insertion post from rotating together, and thus facilitating effective clamping of the spacer bar's claw clamp, making spacer bar installation easier.
[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A wrench specifically for spacer bars, comprising an installation rod (1), characterized in that: A first pressure plate (3) is fixedly installed at the bottom of the mounting rod (1). A circular groove (2) is formed at the bottom of the first pressure plate (3). The circular groove (2) extends into the mounting rod (1). A sliding rod (4) is slidably installed in the circular groove (2). The bottom end of the sliding rod (4) extends out of the circular groove (2) and is fixedly installed with an insert rod (5). A storage groove (6) passes through the insert rod (5). A second pressure plate (7) is rotatably installed in the storage groove (6). A first circular rod (8) is fixedly installed in the storage groove (6). The pressure plate (7) is rotatably sleeved on the first round rod (8). A screw rod (9) is threaded onto the slide rod (4). A U-shaped locking block (10) is rotatably installed at the top of the mounting rod (1). The top of the screw rod (9) is fixed to the bottom of the U-shaped locking block (10). A rotating plate (11) is rotatably installed inside the U-shaped locking block (10). A pull rod (13) is fixedly installed on one side of the rotating plate (11). A second round rod (12) is fixedly installed inside the U-shaped locking block (10). The second round rod (12) rotatably passes through the rotating plate (11).
2. The spacer wrench according to claim 1, characterized in that: The rotating plate (11) also includes two slots (14), which are opened on the edge of the rotating plate (11). The U-shaped block (10) has a cavity (15), in which a slide plate (16) is slidably installed. A lever (17) is fixedly installed on the top of the slide plate (16), and the top of the lever (17) is slidably installed in the corresponding slot (14). Two springs (18) are provided in the cavity (15), and the top of the springs (18) contacts the slide plate (16). A rectangular through groove (19) is passed through one side of the inner wall of the cavity (15), and a slider (20) is slidably passed through the rectangular through groove (19). The slider (20) is fixed to one side of the slide plate (16).
3. The spacer wrench according to claim 1, characterized in that: The top inner wall of the circular groove (2) has a first through hole, and the lead screw (9) rotates through the first through hole.
4. A wrench for spacers according to claim 1, characterized in that: Limiting grooves are provided on both inner walls of the circular groove (2), and limiting blocks are slidably installed in the limiting grooves. The limiting blocks are fixed on the slide rod (4).
5. A wrench for spacers according to claim 1, characterized in that: The slide bar (4) has a threaded through hole, and the lead screw (9) is threadedly installed in the threaded through hole.
6. A wrench for spacers according to claim 1, characterized in that: An anti-slip sleeve is fixedly fitted on the mounting rod (1). The anti-slip sleeve is made of rubber. A rubber damping sleeve is provided on the second pressure plate (7). The rubber damping sleeve is rotatably fitted on the first round rod (8).
7. A wrench for spacers according to claim 2, characterized in that: A second through hole is provided on the top inner wall of the chamber (15), and the lever (17) slides through the second through hole.
8. A wrench for spacers according to claim 2, characterized in that: Two limiting rods are fixedly installed inside the chamber (15), and the limiting rods slide through the slide plate (16) and the corresponding spring (18).
Citation Information
Patent Citations
Spanner special for spacer
CN219901948U