Insulated pull rod with connection assembly

Abstract

The application relates to the technical field of insulating pull rods, and provides an insulating pull rod with a connecting assembly, which comprises a connecting assembly and an insulating pull rod body, the connecting assembly is used for connecting the insulating pull rod and a movable conducting rod; the connecting assembly comprises a connecting part, a plug-in column, a plug pin and a fixing part, the connecting part is installed on the movable conducting rod, the plug-in column is installed on the insulating pull rod, the connecting part is provided with a plug-in groove for plug-in of the plug-in column, opposite sides of the plug-in groove are provided with first mounting holes, the plug-in column is provided with second mounting holes which are in communication with the first mounting holes; the plug pin is plugged into the first mounting holes and the second mounting holes, and the fixing part is used for connecting the plug pin and the connecting part. The insulating pull rod with the connecting assembly can reduce the occurrence of tooth slipping between the movable conducting rod and the insulating pull rod.

Description

Technical Field

[0001] This application relates to the field of insulating tie rod technology, and in particular to an insulating tie rod having a connecting component. Background Technology

[0002] During power system operation, the stable operation of solid-sealed poles is crucial to ensuring the reliability of the entire power grid. They effectively isolate external interference and reduce the probability of faults. Furthermore, the widespread application of solid-sealed structures enables high-voltage AC vacuum circuit breakers to maintain good performance under various environmental conditions, providing strong support for the continuity of power supply.

[0003] Existing solid-sealed poles typically include a pole housing, an upper terminal block, a vacuum interrupter, and a lower terminal block. The upper and lower terminal blocks are fixed to the pole housing as inserts, forming part of it. The vacuum interrupter is located inside the pole housing. During the assembly of the high-voltage AC vacuum circuit breaker, the insulating tie rod needs to be connected to the moving conductive rod of the vacuum interrupter. Currently, the most common connection method is a threaded connection, which is tightened by rotating the lower end of the insulating tie rod outside the pole.

[0004] However, during frequent operation, the threads of the insulating tie rod of the solid-sealed pole may experience increased clearance due to fretting wear, eventually leading to stripping. Equipment failures caused by stripping require regular maintenance or replacement of parts, affecting production efficiency. Utility Model Content

[0005] To reduce the occurrence of slippage between the moving conductive rod and the insulating tie rod, this application provides an insulating tie rod with a connecting assembly.

[0006] The insulating tie rod with connecting components provided in this application adopts the following technical solution:

[0007] An insulating pull rod with a connecting assembly includes a connecting assembly and an insulating pull rod body. The connecting assembly is used to connect the insulating pull rod and a movable conductive rod. The connecting assembly includes a connecting part, a plug-in post, a pin, and a fixing component. The connecting part is mounted on the movable conductive rod, and the plug-in post is mounted on the insulating pull rod. The connecting part has a plug-in groove for the plug-in post to be inserted into. The plug-in groove has first mounting holes on opposite sides. The plug-in post has a second mounting hole communicating with the first mounting holes. The pin is inserted into the first mounting hole and the second mounting hole. The fixing component is used to connect the pin to the connecting part.

[0008] By adopting the above technical solution, the problems of increased clearance and tooth slippage caused by fretting wear of the threads when the insulating rod and the moving conductive rod are connected by threads are avoided. This reduces equipment failures, lowers the need for regular maintenance or component replacement, and improves production efficiency. Furthermore, the connection between the insulating rod and the moving conductive rod is achieved through pins and fixing components, resulting in a simple structure and reliable connection.

[0009] Optionally, the fixing component includes a positioning post and a spring, the outer wall of the connecting part is provided with a mounting plate, and the positioning post is slidably mounted on the mounting plate; the pin has a positioning groove for the positioning post to be inserted into, and the elastic force of the spring is used to drive the positioning post to be inserted into the positioning groove in the normal state.

[0010] By adopting the above technical solution, the positioning post is normally inserted into the positioning groove of the pin under the action of spring force, which can further ensure the stable connection between the pin and the connecting part, prevent the pin from loosening or falling out, thereby ensuring the reliability of the connection between the insulating pull rod and the moving conductive rod, reducing equipment failures and improving production efficiency.

[0011] Optionally, the outer wall of the pin is provided with a first guide block, and the first mounting hole is provided with a first guide groove for the first guide block to be inserted.

[0012] By adopting the above technical solution, the first guide block provided on the outer wall of the pin cooperates with the first guide groove opened in the first mounting hole, which facilitates positioning when installing the pin, and thus facilitates the positioning post and the positioning groove to be set opposite each other.

[0013] Optionally, the mounting plate has a movable hole for the positioning column to slide, and a connecting plate is provided at the end of the positioning column away from the positioning groove; the spring is sleeved on the outer wall of the positioning column, and the two ends of the spring are respectively connected to the mounting plate and the connecting plate.

[0014] By adopting the above technical solution, this structural design makes the installation of each component of the connecting assembly simpler and facilitates the overall assembly.

[0015] Optionally, the positioning post is provided with a guide surface for guiding the positioning post to move toward the side away from the pin.

[0016] By adopting the above technical solution, the guide surface can guide the positioning post to move toward the side away from the pin, so that the pin can be smoothly inserted into the first mounting hole and the second mounting hole, which improves the ease of assembly; and when the positioning groove is aligned with the positioning post, the spring force will drive the positioning post to insert into the positioning groove.

[0017] Optionally, the pin has a first fixing hole, and the positioning post has a second fixing hole that communicates with the first fixing hole. An anti-detachment post is inserted into both the first fixing hole and the second fixing hole.

[0018] By adopting the above technical solution, the insertion and connection of the anti-detachment column and the second fixing hole can prevent the positioning column from detaching from the positioning groove during operation, thereby increasing the stability of the installation of the insulating pull rod and the moving conductive rod.

[0019] Optionally, the anti-detachment post is attached to the inner wall of the first fixing hole.

[0020] By adopting the above technical solution, the occurrence of the anti-detachment column falling out of the first fixing hole is further reduced, and the stability of the anti-detachment column installed in the first fixing hole is increased.

[0021] Optionally, the outer wall of the plug is provided with a second guide block, and the inner wall of the plug groove is provided with a second guide groove for the second guide block to slide.

[0022] By adopting the above technical solution, the cooperation between the second guide block and the second guide groove enables the first mounting hole and the second mounting hole to be aligned, which facilitates the connection of the insulating pull rod and the moving conductive rod by the pin.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The insertion and engagement of the pin with the first and second mounting holes avoids the problem of increased clearance and slippage caused by thread wear due to fretting when the insulating pull rod and the moving conductive rod are connected by threads. This reduces equipment failures, lowers the need for regular maintenance or replacement of parts, and improves production efficiency.

[0025] 2. The insertion and connection of the anti-detachment post and the second fixing hole can prevent the positioning post from detaching from the positioning groove during operation, thereby increasing the stability of the installation of the insulating pull rod and the moving conductive rod. Attached Figure Description

[0026] Figure 1 This is a partial sectional view of this embodiment;

[0027] Figure 2 yes Figure 1 A magnified view of a portion of point a.

[0028] Explanation of reference numerals in the attached drawings: 1. Insulating pull rod; 2. Connecting assembly; 3. Connecting part; 31. Insertion groove; 32. First mounting hole; 33. Second guide groove; 34. Mounting plate; 35. Movable hole; 36. First guide groove; 4. Insertion post; 41. Second mounting hole; 42. Second guide block; 5. Pin; 51. Positioning groove; 52. First guide block; 53. First fixing hole; 6. Fixing component; 61. Positioning post; 62. Spring; 63. Connecting plate; 64. Guide surface; 65. Second fixing hole; 66. Anti-detachment post; 7. Moving conductive rod. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses an insulating pull rod 1 having a connecting component 2.

[0031] Reference Figure 1 An insulating pull rod 1 with a connecting component 2 is provided. The insulating pull rod 1 includes the connecting component 2 and the body of the insulating pull rod 1, wherein the connecting component 2 is used to connect the body of the insulating pull rod 1 to the moving conductive rod 7.

[0032] The connecting assembly 2 includes a connecting part 3, a plug post 4, a pin 5, and a fixing component 6. The connecting part 3 is installed on the moving conductive rod 7. The connecting part 3 is usually made of a high-strength, wear-resistant metal material, such as stainless steel or copper alloy. These materials ensure that the connecting part 3 will not be easily damaged during long-term use, thereby ensuring the stability of the connection with the moving conductive rod 7. The connecting part 3 and the moving conductive rod 7 can be installed by welding, which is a very strong connection method that allows the connecting part 3 and the moving conductive rod 7 to be tightly joined together; or they can be connected by bolts, which is convenient for disassembly and replacement. In this embodiment, the connecting part 3 and the moving conductive rod 7 are connected by welding.

[0033] The plug-in post 4 is installed on the insulating tie rod 1. The plug-in post 4 also needs to have a certain strength and durability. The plug-in post 4 and the insulating tie rod 1 can be installed as one piece, which can ensure the connection strength and stability between the two.

[0034] The connecting part 3 has a insertion groove 31 for inserting the plug post 4. The insertion groove 31 has first mounting holes 32 on opposite sides. The plug post 4 has a second mounting hole 41 that communicates with the first mounting holes 32. The shape of the insertion groove 31 is usually adapted to the plug post 4, and is generally round or square, so that the plug post 4 can be accurately inserted into it.

[0035] The outer wall of the plug post 4 is provided with a second guide block 42, and the inner wall of the plug groove 31 is provided with a second guide groove 33 for the second guide block 42 to slide. The plug-in cooperation between the second guide block 42 and the second guide groove 33 can make the first mounting hole 32 and the second mounting hole 41 face each other, so that the pin 5 can be plugged into the first mounting hole 32 and the second mounting hole 41.

[0036] The pin 5 is inserted into the first mounting hole 32 and the second mounting hole 41. The pin 5 is usually made of metal, such as carbon steel or alloy steel, which has high strength and hardness and can withstand greater tensile and compressive forces. The fixing component 6 is used to connect the pin 5 to the connecting part 3. The function of the fixing component 6 is to prevent the pin 5 from falling off during use and to ensure the reliability of the connection.

[0037] Reference Figure 2 The fixing component 6 includes a positioning post 61 and a spring 62. The outer wall of the connecting part 3 is integrally formed with a mounting plate 34. The mounting plate 34 has a movable hole 35. The positioning post 61 has the same shape as the movable hole 35. The positioning post 61 is slidably installed in the movable hole 35. The outer wall of the pin 5 has a positioning groove 51 for the positioning post 61 to be inserted.

[0038] In this embodiment, a first guide block 52 is provided on the outer wall of the pin 5, and a first guide groove 36 is provided in the first mounting hole 32 for the first guide block 52 to be inserted. The function of the first guide block 52 and the first guide groove 36 is similar to that of the second guide block 42 and the second guide groove 33, which is to facilitate the positioning post 61 and the positioning groove 51 to be set opposite each other, thereby increasing the installation efficiency.

[0039] A connecting plate 63 is provided at the end of the positioning post 61 away from the positioning groove 51. A spring 62 is sleeved on the outer wall of the positioning post 61. The two ends of the spring 62 are connected to the mounting plate 34 and the connecting plate 63 respectively. The elastic force of the spring 62 can increase the insertion of the positioning post 61 into the positioning groove 51, thereby increasing the connection stability between the pin 5 and the connecting part 3.

[0040] The positioning post 61 is provided with a guide surface 64 for guiding the positioning post 61 to move away from the pin 5. The guide surface 64 is generally inclined. When the pin 5 needs to be installed, the positioning post 61 can slide along the guide surface 64 by the pin 5 abutting against the guide surface 64. This allows the pin 5 to be smoothly inserted into the first mounting hole 32 and the second mounting hole 41, improving the assembly efficiency of the pin 5 and the connecting part 3.

[0041] The pin 5 has a first fixing hole 53 along the axial direction, and the positioning post 61 has a second fixing hole 65 that communicates with the first fixing hole 53. The first fixing hole 53 and the second fixing hole 65 are both inserted with an anti-detachment post 66, which can prevent the positioning post 61 from detaching from the positioning groove 51 during operation, thereby increasing the stability of the installation of the insulating pull rod 1 and the moving conductive rod 7.

[0042] The anti-detachment post 66 can be made of stainless steel, and its outer diameter is the same as the inner diameter of the first fixing hole 53 and the inner diameter of the second fixing hole 65, which improves the smoothness of the anti-detachment post 66 being inserted into the first fixing hole 53; and the anti-detachment post 66 is attached to the first fixing hole 53, which can prevent the anti-detachment post 66 from detaching from the first fixing hole 53.

[0043] The anti-detachment post 66 can also be made of rubber material, and the anti-detachment post 66 and the first fixing hole 53 are interference fit, which can increase the stability of the anti-detachment post 66 when inserted into the first fixing hole 53.

[0044] The implementation principle of an insulating pull rod 1 with a connecting component 2 in this application embodiment is as follows:

[0045] The insertion and engagement of the pin 5 with the first mounting hole 32 and the second mounting hole 41 avoids the problems of increased clearance and slippage caused by thread wear due to fretting when the insulating pull rod 1 and the moving conductive rod 7 are connected by threads. This reduces equipment failures, lowers the need for regular maintenance or component replacement, and improves production efficiency. Furthermore, the connection between the insulating pull rod 1 and the moving conductive rod 7 is achieved through the pin 5 and the fixing component 6, resulting in a simple structure and reliable connection.

[0046] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An insulated pull rod having a connection assembly, characterized by: The device includes a connecting assembly (2) and an insulating rod (1) body. The connecting assembly (2) is used to connect the insulating rod (1) and the moving conductive rod (7). The connecting assembly (2) includes a connecting part (3), a plug post (4), a pin (5), and a fixing component (6). The connecting part (3) is installed on the moving conductive rod (7), and the plug post (4) is installed on the insulating rod (1). The connecting part (3) has a plug groove (31) for the plug post (4) to be inserted into. The plug groove (31) has a first mounting hole (32) on both sides. The plug post (4) has a second mounting hole (41) that communicates with the first mounting hole (32). The pin (5) is inserted into the first mounting hole (32) and the second mounting hole (41). The fixing component (6) is used to connect the pin (5) to the connecting part (3).

2. An insulating pull rod with a connecting component according to claim 1, characterized in that: The fixing component (6) includes a positioning post (61) and a spring (62). The outer wall of the connecting part (3) is provided with a mounting plate (34). The positioning post (61) is slidably mounted on the mounting plate (34). The pin (5) has a positioning groove (51) for the positioning post (61) to be inserted into. The elastic force of the spring (62) is used to drive the positioning post (61) to be inserted into the positioning groove (51) under normal conditions.

3. An insulating pull rod with a connecting component according to claim 2, characterized in that: The outer wall of the pin (5) is provided with a first guide block (52), and the first mounting hole (32) is provided with a first guide groove (36) for the first guide block (52) to be inserted.

4. An insulating pull rod with a connecting component according to claim 2, characterized in that: The mounting plate (34) has a movable hole (35) for the positioning post (61) to slide. A connecting plate (63) is provided at the end of the positioning post (61) away from the positioning groove (51). The spring (62) is sleeved on the outer wall of the positioning post (61). The two ends of the spring (62) are connected to the mounting plate (34) and the connecting plate (63) respectively.

5. An insulating pull rod with a connecting component according to claim 2, characterized in that: The positioning post (61) is provided with a guide surface (64) for guiding the positioning post (61) to move toward the side away from the pin (5).

6. An insulating pull rod with a connecting component according to claim 2, characterized in that: The pin (5) has a first fixing hole (53), and the positioning post (61) has a second fixing hole (65) that communicates with the first fixing hole (53). An anti-detachment post (66) is inserted into both the first fixing hole (53) and the second fixing hole (65).

7. An insulating pull rod with a connecting component according to claim 6, characterized in that: The anti-detachment column (66) is attached to the inner wall of the first fixing hole (53).

8. An insulating pull rod with a connecting component according to claim 1, characterized in that: The outer wall of the plug (4) is provided with a second guide block (42), and the inner wall of the plug groove (31) is provided with a second guide groove (33) for the second guide block (42) to slide.

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