Special tool for blind installation of R pin based on ground potential

Abstract

The invention relates to the technical field of hot-line work, in particular to a special tool for blind installation of an R pin based on ground potential, which comprises a shell, one end of the shell is rotatably connected with an R pin placing part, the R pin placing part is provided with an R pin placing groove, and the other end of the shell is provided with an insulating push rod. The insulating push rod penetrates through the end wall of the shell and is in sliding connection with the inclined sliding groove, in the R pin installation process, the insulating push rod drives the shell to rotate, a fastening part is arranged on the R pin containing part and used for applying pressure to the R pin in the R pin containing part so that the open end of the R pin can be closed, and an adjusting part matched with the fastening part is arranged on the shell. And the adjusting part controls the fastening part to relieve the pressure applied to the open end of the R pin, so that the round head part of the R pin can conveniently pass through, and the problem that in the related technology, an installation worker needs to push and pull an insulating handle in a reciprocating mode to complete installation of the R-type spring pin at a time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of live working, and in particular to a special tool based on blind installation of a ground potential R pin. Background Art

[0002] At present, R pins are widely used in power transmission and play a pivotal role. Due to the vibration of insulators and conductors and the aging of their own materials, they will fall off. It is time-consuming and laborious to install them at the same potential. Especially complex locations require power outages for installation, which affects the reliability of power supply.

[0003] The utility model patent with application number: 201821648496.3 discloses a live reinstallation tool for R-type spring pins, comprising: an adjustment bolt, a shell and an insulating handle; wherein the working end of the shell is a free end, and the other end of the shell is fixedly connected to the insulating handle; a pin accommodating chamber for accommodating the R-type spring pin is opened on one side of the free end of the shell along the radial direction of the shell, thereby solving the problem that the R-type spring pin cannot be reinstalled live.

[0004] Although the above utility model patent solves the problem that the R-type spring pin cannot be reinstalled under power, the installer needs to push and pull the insulating handle back and forth to complete the installation of the R-type spring pin, which results in low installation efficiency in actual use. Summary of the invention

[0005] The present invention provides a special tool for blind installation of an R-pin based on ground potential, aiming to solve the problem in the related art that installers need to push and pull the insulating handle back and forth to complete the installation of the R-type spring pin.

[0006] The special tool for blind installation of ground potential R pins of the present invention comprises a shell, one end of which is rotatably connected to an R pin placement portion, the R pin placement portion is provided with an R pin placement groove, the other end is provided with an insulating push rod, and the side wall of the shell is provided with an inclined slide groove, the insulating push rod passes through the end wall of the shell and is slidably connected to the inclined slide groove. During the installation of the R pin, the insulating push rod drives the shell to rotate, the R pin placement portion is provided with a fastening portion for applying pressure to the R pin in the R pin placement portion to close the open end of the R pin, and the shell is provided with an adjusting portion adapted to the fastening portion. During the rotation of the shell, the adjusting portion controls the fastening portion to release the pressure on the open end of the R pin.

[0007] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: the closed end of the R pin is facing the insulating push rod and placed in the R pin placement groove, the open end of the R pin is closed by applying pressure through the fastening part, the R pin is aligned with the pin installation point, and the insulating push rod is pushed, so that the R pin can be completely installed into the installation point, and the R pin is automatically disengaged from the R pin placement groove, thereby solving the problem that the installer needs to complete the installation of the R-type spring pin by pushing and pulling the insulating handle back and forth.

[0008] Preferably, the fastening portion is a bolt threadedly connected to the R-pin placement portion.

[0009] Preferably, the adjustment portion is an adjustment groove arranged on the shell, and the adjustment groove is arranged on the side wall of the shell at one end close to the bolt and contacts the bolt. During the rotation of the shell, the adjustment groove squeezes the bolt to rotate back in the direction outside the R-pin placement portion.

[0010] By adopting the above technical scheme, the beneficial effects of the present invention are: by pushing the insulating push rod, the rotation of the outer shell can be controlled, and the bolt is squeezed by the adjustment groove and rotates back toward the outside of the placement part, thereby releasing the pressure on the open end of the R pin and breaking away from the contact with the R pin, so that the R pin automatically detaches from the R pin placement groove.

[0011] Preferably, the fastening part also includes a fastening rod connected to the R-pin placement part via an elastic member, the fastening rod having an external part placed outside the R-pin placement part and an internal part, the internal part penetrates the side wall of the R-pin placement part and is positioned in the R-pin placement groove, the internal part is closed by elastically squeezing the R-pin open end by the elastic member, and the diameter of the external part of the fastening rod gradually decreases from the top to the bottom of the fastening rod.

[0012] Preferably, the adjustment portion further comprises an adjustment ring arranged on the housing, the adjustment ring being arranged at one end close to the fastening rod and contacting the external portion of the fastening rod, and the diameter of the side of the adjustment ring contacting the fastening rod increases circumferentially.

[0013] Preferably, the elastic member is a spring, which is sleeved on the built-in part of the fastening rod, with one end of the spring fixedly connected to the inside of the R-pin placement groove and the other end fixedly connected to the built-in part of the fastening rod.

[0014] By adopting the above technical solution, the beneficial effect of the present invention is that the rotation of the outer shell can drive the adjustment ring to rotate. During the rotation of the adjustment ring, the edge diameter of the contact part between the external part of the fastening rod and the adjustment ring gradually increases, thereby driving the adjustment rod to move in the direction away from the R-pin placement part, thereby releasing the pressure on the open end of the R-pin and breaking away from the contact with the R-pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the shell.

[0017] Figure 3 It is a structural diagram of the adjusting slot and the bolt.

[0018] Figure 4 It is a schematic diagram of the structure of the adjusting ring and the fastening rod.

[0019] 10. Shell; 11. Inclined slide groove; 12. Adjustment part; 121. Adjustment groove; 122. Adjustment ring; 20. R pin placement part; 21. R pin placement groove; 30. Fastening part; 31. Bolt; 32. Elastic part; 321. Spring; 33. Fastening rod; 40. Insulating push rod. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] like Figure 1 As shown, the special tool based on ground potential R pin blind installation of the present invention comprises a housing 10, one end of the housing 10 is rotatably connected to an R pin placement portion 20, the R pin placement portion 20 is provided with an R pin placement groove 21, and the other end is provided with an insulating push rod 40, and the side wall of the housing 10 is provided with an inclined slide groove 11 (such as Figure 1 As shown), the insulating push rod 40 passes through the end wall of the shell 10 and is slidably connected to the inclined slide groove 11, and a slider is slidably connected to the inclined slide groove 11, and one end of the slider is fixedly connected to the part of the insulating push rod placed in the shell 10. During the installation of the R pin, the insulating push rod 40 drives the shell 10 to rotate, and the R pin placement portion 20 is provided with a fastening portion 30, which is used to apply pressure to the R pin in the R pin placement portion 20 to close the open end of the R pin, and the shell 10 is provided with an adjusting portion 12 adapted to the fastening portion 30. During the rotation of the shell 10, the adjusting portion 12 controls the fastening portion 30 to release the pressure on the open end of the R pin.

[0022] In this specific embodiment, the closed end of the R pin is facing the insulating push rod 40 and placed in the R pin placement groove 21. The open end of the R pin is closed by applying pressure through the fastening part 30, the R pin is aligned with the pin installation point, and the insulating push rod 40 is pushed. During the pushing process, the insulating push rod 40 is placed at one end inside the shell 10 and translates toward the direction of the R pin placement part 20. During the translation process, the shell 10 follows the movement of the insulating push rod 40 through the inclined slide groove 11 to rotate synchronously. During the rotation of the shell 10, the adjustment part 12 is driven to apply pressure to the fastening part 30, and the fastening part 30 is driven to release the pressure on the open end of the R pin and separate from the R pin. The separation process is carried out synchronously with the process of the staff inserting the R pin into the installation point. Therefore, when the R pin is fully installed into the installation point, the R pin is automatically disengaged from the R pin placement groove 21, which solves the problem that the installer needs to push and pull the insulating handle back and forth to complete the installation of the R-type spring pin.

[0023] like Figures 2 to 3 As shown, the fastening portion 30 is a bolt 31 threadedly connected to the R-pin placement portion 20, and an anti-slip layer can be provided at one end of the bolt to improve the stability during the process of applying pressure to the open end of the R-pin.

[0024] like Figures 2 to 3 As shown, further, the adjustment portion 12 is an adjustment groove 121 arranged on the outer shell 10, and the adjustment groove 121 is arranged on the side wall of the outer shell 10 close to one end of the bolt 31 and contacts with the bolt 31. During the rotation of the outer shell 10, the adjustment groove 121 squeezes the bolt 31 to rotate back in the direction outside the R-pin placement portion 20. When one end of the insulating push rod 40 moves in the direction of the R-pin placement portion 20, the adjustment groove 121 squeezes the nut of the bolt 31 to rotate, driving the thread of the bolt 31 to rotate and making the end of the bolt 31 gradually move away from the R-pin.

[0025] like Figure 4 As shown, preferably, the fastening portion 30 also includes a fastening rod 33 connected to the R-pin placement portion 20 via an elastic member 32, the fastening rod 33 having an external portion placed outside the R-pin placement portion 20 and an internal portion, the internal portion passes through the side wall of the R-pin placement portion 20 and is positioned in the R-pin placement groove 21, the internal portion is closed by elastically squeezing the R-pin open end by the elastic member 32, and the diameter of the external portion of the fastening rod 33 gradually decreases from the top to the bottom of the fastening rod 33.

[0026] like Figure 4 As shown, specifically, the adjustment portion 12 also includes an adjustment ring 122 arranged on the outer shell 10, and the adjustment ring 122 is arranged at one end close to the fastening rod 33 and contacts with the external portion of the fastening rod 33. The side of the adjustment ring 122 that contacts the fastening rod 33 has an edge diameter that increases circumferentially. When the insulating push rod 40 moves in a direction away from the R-pin placement portion 20, the minimum diameter of the edge of the adjustment ring 122 contacts the fastening rod 33. At this time, the fastening rod applies pressure to the R-pin placed inside and closes the open end of the R-pin. Otherwise, the maximum diameter contacts the fastening rod 33. When the maximum diameter contacts the fastening rod 33, the pressure applied by the fastening rod 33 on the open end of the R-pin is stopped and the rod is separated from the R-pin.

[0027] like Figure 4 As shown, further, the elastic member 32 is a spring 321, and the spring 321 is sleeved on the built-in part of the fastening rod 33, one end of the spring 321 is fixedly connected to the inside of the R-pin placement slot 21, and the other end is fixedly connected to the built-in part of the fastening rod 33. When the spring 321 is stationary, its elastic force drives the fastening rod 33 to extend in the direction of the R-pin placement slot 21 in the direction of the spring 321. The elastic force of the spring 321 is greater than the elastic force of the open end of the conventional R-pin, so that when the spring 321 drives the fastening rod 33 to move in the direction of the R-pin placement slot 21, it can apply pressure to the R-pin placed inside it to close the open end of the R-pin.

[0028] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A special tool for blind installation based on the ground potential R pin, characterized in that: The invention comprises a shell (10), one end of which is rotatably connected to an R pin placement portion (20), an R pin placement groove (21) being provided on the R pin placement portion (20), and an insulating push rod (40) being provided on the other end. An inclined slide groove (11) is provided on the side wall of the shell (10), and the insulating push rod (40) passes through the end wall of the shell (10) and is slidably connected to the inclined slide groove (11). During the installation of the R pin, the insulating push rod (40) drives the shell (10) to rotate. The R pin placement portion (20) is provided with a fastening portion (30) for applying pressure to the R pin in the R pin placement portion (20) to close the open end of the R pin. The shell (10) is provided with an adjusting portion (12) adapted to the fastening portion (30). During the rotation of the shell (10), the adjusting portion (12) controls the fastening portion (30) to release the pressure on the open end of the R pin.

2. The special tool based on blind installation of ground potential R pin according to claim 1, characterized in that: The fastening portion (30) is a bolt (31) threadedly connected to the R-pin placement portion (20).

3. The special tool based on blind installation of ground potential R pin according to claim 2, characterized in that: The adjusting portion (12) is an adjusting groove (121) arranged on the housing (10). The adjusting groove (121) is arranged on a side wall of the housing (10) close to one end of the bolt (31) and is in contact with the bolt (31). During the rotation of the housing (10), the adjusting groove (121) squeezes the bolt (31) to rotate backward in a direction outside the R-pin placement portion (20).

4. The special tool based on blind installation of ground potential R pin according to claim 1, characterized in that: The fastening portion (30) further comprises a fastening rod (33) connected to the R-pin placement portion (20) via an elastic member (32); the fastening rod (33) comprises an external portion placed outside the R-pin placement portion (20) and an internal portion; the internal portion penetrates the side wall of the R-pin placement portion (20) and is disposed in the R-pin placement groove (21); the internal portion is closed by elastically squeezing the R-pin opening end by the elastic member (32); and the diameter of the external portion of the fastening rod (33) gradually decreases from the top to the bottom of the fastening rod (33).

5. The special tool based on blind installation of ground potential R pin according to claim 4, characterized in that: The adjusting portion (12) further comprises an adjusting ring (122) arranged on the outer shell (10); the adjusting ring (122) is arranged at one end close to the fastening rod (33) and in contact with the outer portion of the fastening rod (33); the diameter of the side of the adjusting ring (122) in contact with the fastening rod (33) increases in the circumferential direction.

6. The special tool based on blind installation of ground potential R pin according to claim 4, characterized in that: The elastic member (32) is a spring (321), which is sleeved on the inner part of the fastening rod (33), one end of which is fixedly connected to the inside of the R pin placement groove (21), and the other end of which is fixedly connected to the inner part of the fastening rod (33).

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