CN112530717A

CN112530717A - Telescopic insulating rod

Info

Publication number: CN112530717A
Application number: CN202011295448.2A
Authority: CN
Inventors: 邹裕青; 张碧其; 骆晨芳; 陈源君; 张盛芳; 周焕枝; 殷栢辉; 骆凯
Original assignee: Guangdong Power Grid Co Ltd; Heyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Heyuan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-19

Abstract

The invention relates to the technical field of insulating rods, and particularly discloses a telescopic insulating rod which comprises a working head and a telescopic part, wherein the telescopic part comprises N +1 telescopic pipes, N locking structures and springs, N is an integer greater than or equal to 1, the N +1 telescopic pipes are sequentially sleeved from inside to outside, any two adjacent telescopic pipes are in sliding fit, one locking structure is arranged between any two adjacent telescopic pipes and used for locking or unlocking the relative positions of the two adjacent telescopic pipes, and in any two adjacent telescopic pipes, the springs can drive the telescopic pipes which are positioned on the inner sides of the telescopic pipes and are relatively arranged on the outer sides of the telescopic pipes to extend. The device is simple and rapid to operate.

Description

Telescopic insulating rod

Technical Field

The invention relates to the technical field of insulating rods, in particular to a telescopic insulating rod.

Background

Insulating bar is an important instrument in the electric wire netting enterprise, be the indispensable multiplexer utensil of basic unit fortune dimension team work of going out, isolation switch on the transformer, breaker switch's operation all need be used the insulating bar, at present, staff's universal use is traditional insulating bar, this insulating bar is formed by multisection action bars spiro union, the spiro union in-process still need look for corresponding pole and carry out the spiro union, because at field work, insulating bar pole portion is mostly metal, rusty phenomenon appears easily, so in the in-service use process, rusty phenomenon often can appear in insulating bar's spiro union portion, and if the screw of junction is not installed, will fall out, there is the risk of high altitude construction, also easily detachable when tearing open, therefore, traditional insulating bar extremely influences staff's work efficiency.

Disclosure of Invention

The invention aims to: the utility model provides a scalable insulator spindle to traditional insulating bar assembles slowly among the solution correlation technique, dismantles difficultly, influences staff work efficiency's problem.

The present invention provides a telescopic insulating rod, comprising:

a working head;

expansion portion, expansion portion includes N +1 flexible pipe, a N locking structure and spring, and N is more than or equal to 1's integer, and N +1 flexible pipe from inside to outside overlaps in proper order and establishes, arbitrary adjacent two flexible pipe sliding fit, and arbitrary adjacent two be equipped with one between the flexible pipe the locking structure, the locking structure is used for two adjacent locking or unblock the relative position of flexible pipe, arbitrary adjacent two in the flexible pipe, the spring can drive and be located the inboard the relative outside of flexible pipe stretches out.

As the preferred technical scheme of the telescopic insulating rod, the number of the springs is one, the telescopic pipes are of a hollow structure, the springs penetrate through the N +1 telescopic pipes, and two ends of each spring are fixedly connected with the outermost telescopic pipe and the innermost telescopic pipe respectively.

As an optimal technical scheme of the telescopic insulating rod, the number of the springs is N, one spring is arranged between any two adjacent telescopic pipes, the springs are arranged in the adjacent two telescopic pipes, the springs penetrate through the telescopic pipes on the outer side, and two ends of each spring are fixedly connected with the two telescopic pipes respectively.

As the preferred technical scheme of the telescopic insulating rod, the telescopic insulating rod further comprises a sliding rail and a sliding groove, wherein in the two adjacent telescopic pipes, the inner telescopic pipe is provided with a concave sliding rail, the outer telescopic pipe is provided with a concave sliding groove, and the sliding rail is in sliding fit with the sliding groove.

As a preferred technical scheme of the telescopic insulating rod, the locking structure comprises a lock pin and a plurality of lock holes, the lock pin is movably arranged in the outer telescopic pipe in two adjacent telescopic pipes, the lock holes are arranged in the inner telescopic pipe at intervals, the lock holes are arranged at intervals along the axial direction of the inner telescopic pipe, and the lock pin can be alternatively inserted into the lock holes to lock the relative positions of the two adjacent telescopic pipes.

As a preferable technical scheme of the telescopic insulating rod, the locking structure further comprises a handle, the handle is rotatably arranged in the outer telescopic pipe in two adjacent telescopic pipes, and the locking pin is fixed on the handle.

As a preferable technical solution of the telescopic insulating rod, the locking structure further includes an elastic member, in two adjacent telescopic pipes, one end of the elastic member abuts against the outer telescopic pipe, the handle has a first end and a second end located at both sides of a rotation center, the lock pin is located at the first end, the other end of the elastic member abuts against the second end, and the elastic member can drive the handle to rotate, so that the lock pin abuts against the inner telescopic pipe.

As the preferred technical scheme of scalable insulator spindle, the second end is provided with the joint round pin with the face that flexible pipe is relative, the elastic component is coil spring, coil spring with the joint round pin joint.

As the preferable technical scheme of the telescopic insulating rod, the working head is in threaded connection with the telescopic pipe at the innermost layer.

As a preferable technical scheme of the telescopic insulating rod, the telescopic pipe is made of an insulating material.

The invention has the beneficial effects that:

the invention provides a telescopic insulating rod which comprises a working head and a telescopic part, wherein the telescopic part comprises N +1 telescopic pipes, N locking structures and a spring, N is an integer greater than or equal to 1, the N +1 telescopic pipes are sequentially sleeved from inside to outside, any two adjacent telescopic pipes are in sliding fit, a locking structure is arranged between any two adjacent telescopic pipes and used for locking or unlocking the relative positions of the two adjacent telescopic pipes, and in any two adjacent telescopic pipes, the spring can drive the telescopic pipe positioned at the inner side and the telescopic pipe positioned at the outer side to extend out. The initial state of this device is the shrink state, at the during operation, the staff estimates roughly through the range between visual observation staff and the effect object and needs several flexible pipes of unblock, then the locking structure on the flexible pipe of unblock, at this moment, the flexible pipe that the spring drive is located the relative outside of the flexible pipe of inboard stretches out, flexible pipe stretches out the back, through the flexible pipe locking that the locking structure will stretch out this moment, scalable insulator spindle alright be used for work, if flexible pipe stretches out the back discovery and need finely tune, then the relative position of two adjacent flexible pipes of accessible locking structure regulation. After work is finished, the locking structure is unlocked, the extended telescopic pipe is retracted through artificial external force, and then the telescopic pipe is locked through the locking structure. The device is simple and rapid to operate.

Drawings

FIG. 1 is a schematic structural diagram of a retractable insulating rod according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a retractable insulating rod in an embodiment of the present invention;

FIG. 3 is a schematic view of a partially enlarged structure of a retractable insulation rod working head according to an embodiment of the present invention;

fig. 4 is a partially enlarged structural schematic view of a retractable insulation rod locking structure according to an embodiment of the present invention.

In the figure:

1. a working head;

2. a telescopic part; 21. a telescopic pipe; 22. a locking structure; 221. a lock pin; 222. a handle; 223. an elastic member;

23. a spring; 24. a slide rail; 25. a chute.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Example one

As shown in fig. 1 to 4, the present embodiment provides a telescopic insulating rod, which includes a working head 1 and a telescopic portion 2, where the telescopic portion 2 includes N +1 telescopic tubes 21, N locking structures 22 and a spring 23, where N is an integer greater than or equal to 1, the N +1 telescopic tubes 21 are sequentially sleeved from inside to outside, any two adjacent telescopic tubes 21 are in sliding fit, and a locking structure 22 is disposed between any two adjacent telescopic tubes 21, the locking structure 22 is used to lock or unlock the relative positions of the two adjacent telescopic tubes 21, and in any two adjacent telescopic tubes 21, the spring 23 can drive the telescopic tube 21 located inside the telescopic tube 21 to extend out relative to the telescopic tube 21 located outside. The initial state of this device is the shrink state, in operation, the staff roughly estimates to need to unblock several flexible pipes 21 through the distance between visual observation staff and the effect object, then unblock the locking structure 22 on the flexible pipe 21, at this moment, the spring 23 drive is located the flexible pipe 21 of the relative outside of the flexible pipe 21 of inboard and stretches out, flexible pipe 21 stretches out the back, through locking structure 22 with the flexible pipe 21 locking that stretches out this moment, scalable insulator spindle alright be used for work, if stretch out the back discovery and need finely tune of flexible pipe 21, then the relative position of two adjacent flexible pipes 21 of accessible locking structure 22 regulation. After the work is finished, the locking structure 22 is unlocked, the extended telescopic tube 21 is retracted by artificial external force, and then the telescopic tube 21 is locked by the locking structure 22. The device is simple and rapid to operate.

Optionally, the number of the springs 23 is one, the telescopic tubes 21 are of a hollow structure, the springs 23 penetrate through the N +1 telescopic tubes 21, and two ends of each spring 23 are fixedly connected with the outermost telescopic tube 21 and the innermost telescopic tube 21 respectively. In this embodiment, the spring 23 is always in a compressed state.

Optionally, the number of the springs 23 is N, one spring 23 is disposed between any two adjacent telescopic tubes 21, and in the two adjacent telescopic tubes 21, the spring 23 is inserted into the outer telescopic tube 21, and two ends of the spring 23 are respectively fixedly connected to the two telescopic tubes 21. In this embodiment, the N springs 23 are all in a compressed state, and the springs 23 can eject the inner telescopic tube 21 of the two adjacent telescopic tubes 21 from the outer telescopic tube 21.

Optionally, the telescopic insulating rod further includes a sliding rail 24 and a sliding groove 25, of the two adjacent telescopic pipes 21, the inner telescopic pipe 21 is provided with a concave sliding rail 24, the outer telescopic pipe 21 is provided with a concave sliding groove 25, and the sliding rail 24 is in sliding fit with the sliding groove 25. In this embodiment, the sliding slot 25 and the sliding track 24 are provided to prevent the telescopic tube 21 from rotating in the circumferential direction, which is further disadvantageous for the locking or unlocking of the telescopic tube 21 by the locking structure 22.

Optionally, the locking structure 22 includes a locking pin 221 and a plurality of locking holes, in two adjacent telescopic tubes 21, the locking pin 221 is movably disposed in the outer telescopic tube 21, the plurality of locking holes are disposed in the inner telescopic tube 21 at intervals, and the plurality of locking holes are disposed at intervals along the axial direction of the inner telescopic tube 21, and the locking pin 221 can be selectively inserted into the plurality of locking holes to lock the relative position of the two adjacent telescopic tubes 21. In this embodiment, the lock pin 221 is movably connected to the outer telescopic tube 21, and the lock pin 221 can be inserted into one of the plurality of lock holes. Therefore, in the two adjacent telescopic tubes 21, the lock hole for inserting the lock pin 221 is selected according to the extending position of the inner telescopic tube 21.

Preferably, the locking structure 22 further includes a handle 222, the handle 222 rotates the extension tube 21 disposed at the outer side in the two adjacent extension tubes 21, and the locking pin 221 is fixed to the handle 222, specifically, the locking structure 22 further includes an elastic member 223, in the two adjacent extension tubes 21, one end of the elastic member 223 abuts against the extension tube 21 at the outer side, the handle 222 has a first end and a second end located at both sides of the rotation center, the locking pin 221 is located at the first end, the other end of the elastic member 223 abuts against the second end, and the elastic member 223 can drive the handle 222 to rotate, so that the locking pin 221 abuts against the extension tube 21 at the inner side. In this embodiment, the handle 222 has a first end and a second end, the middle position of the handle 222 is movably connected with the outer telescopic tube 21, the handle 222 forms a lever structure, when the telescopic tube 21 needs to be extended or retracted, the second end is pressed down, and the first end is tilted, so the lock pin 221 is pulled out from the lock hole, and at this time, the inner telescopic tube 21 can slide in the outer telescopic tube 21; when the position is determined, the second end is raised, and the first end is lowered, so that the lock pin 221 is inserted into the lock hole. Specifically, since one end of the elastic member 223 abuts against the second end and the other end abuts against the outer telescopic tube 21, the lock pin 221 always abuts against the inner telescopic tube 21 or is inserted into the lock hole without being subjected to an external force.

Optionally, a clamping pin is disposed on a surface of the second end opposite to the telescopic tube 21, and the elastic member 223 is a coil spring, and the coil spring is clamped with the clamping pin. In this embodiment, the elastic member 223 is a coil spring, one end of the coil spring is connected to the latch pin, and the other end of the coil spring is connected to the opposite outer telescopic tube 21 in an abutting manner, and the length of the latch pin is to ensure that the lock pin 221 can be pulled out from the lock hole. In other embodiments, a clamping groove may be disposed on a surface of the second end opposite to the extension tube 21, and the coil spring extends into the clamping groove and is clamped with an inner wall of the clamping groove.

Optionally, the working head 1 is screwed with the telescopic tube 21 of the innermost layer. The purpose of screwing the working head 1 with the telescopic tube 21 at the innermost layer in the embodiment is to facilitate later replacement, because the working head 1 is easily damaged in daily work. In other embodiments, the connection may be by snap-fit.

Preferably, the telescopic tube 21 is made of an insulating material. In this embodiment, the extension tube 21 is made of an insulating material because the device is often used for operating live equipment such as an isolation switch and a breaker switch of a transformer.

Second embodiment, the only difference between this embodiment and the first embodiment is that the slide rails 24 and the slide grooves 25 are eliminated, and the cross section of the telescopic tube 21 is designed to be oval.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A retractable insulating rod, comprising:

a working head (1);

expansion part (2), expansion part (2) include N +1 flexible pipe (21), N locking structure (22) and spring (23), and N is more than or equal to 1 integer, and N +1 flexible pipe (21) cover from inside to outside in proper order establishes, arbitrary adjacent two flexible pipe (21) sliding fit, and arbitrary adjacent two be equipped with one between flexible pipe (21) locking structure (22), locking structure (22) are used for two adjacent the relative position locking or the unblock of flexible pipe (21), arbitrary adjacent two in flexible pipe (21), spring (23) can drive and are located the inboard the relative outside of flexible pipe (21) stretches out.

2. The telescopic insulating rod as claimed in claim 1, wherein the number of the spring (23) is one, the telescopic tube (21) is a hollow structure, the spring (23) is inserted into N +1 telescopic tubes (21), and two ends of the spring (23) are respectively fixed with the outermost telescopic tube (21) and the innermost telescopic tube (21).

3. The telescopic insulating rod as claimed in claim 1, wherein the number of the springs (23) is N, one spring (23) is arranged between any two adjacent telescopic tubes (21), and in the two adjacent telescopic tubes (21), the spring (23) is inserted into the outer telescopic tube (21) and two ends of the spring (23) are respectively fixedly connected with the two telescopic tubes (21).

4. The telescopic insulating rod according to claim 1, further comprising a sliding rail (24) and a sliding groove (25), wherein in two adjacent telescopic tubes (21), the inner telescopic tube (21) is provided with a concave sliding rail (24), the outer telescopic tube (21) is provided with a concave sliding groove (25), and the sliding rail (24) is in sliding fit with the sliding groove (25).

5. The retractable insulating rod of claim 1, wherein the locking structure (22) comprises a locking pin (221) and a plurality of locking holes, in two adjacent retractable tubes (21), the locking pin (221) is movably arranged on the outside retractable tube (21), the plurality of locking holes are arranged on the inside retractable tube (21) at intervals, the plurality of locking holes are arranged at intervals along the axial direction of the inside retractable tube (21), and the locking pin (221) can be alternatively inserted into the plurality of locking holes to lock the relative positions of the two adjacent retractable tubes (21).

6. The retractable insulating rod of claim 5, wherein said locking structure (22) further comprises a handle (222), and in two adjacent telescoping tubes (21), said handle (222) is rotatably disposed on the telescoping tube (21) at the outer side, and said latch (221) is fixed to said handle (222).

7. The retractable insulating rod of claim 6, wherein the locking structure (22) further comprises an elastic member (223), one end of the elastic member (223) abuts against the outside of the telescopic tube (21) in two adjacent telescopic tubes (21), the handle (222) has a first end and a second end located on both sides of the rotation center, the latch (221) is located at the first end, the other end of the elastic member (223) abuts against the second end, and the elastic member (223) can drive the handle (222) to rotate so that the latch (221) abuts against the inside of the telescopic tube (21).

8. The telescopic insulating rod as claimed in claim 7, wherein a clamping pin is arranged on the surface of the second end opposite to the telescopic pipe (21), the elastic part (223) is a coil spring, and the coil spring is clamped with the clamping pin.

9. Telescopic insulation rod according to claim 1, characterized in that the working head (1) is screwed with the telescopic tube (21) of the innermost layer.

10. Telescopic insulating rod according to claim 1, characterized in that the telescopic tube (21) is made of an insulating material.