10kV portable wire insulation shielding cover

Abstract

The utility model relates to a 10kV portable conducting wire insulation shielding cover, which solves the problems that the existing conducting wire insulation shielding cover cannot stretch according to actual requirements during operation and is inconvenient to recycle and transport, and comprises a male rod, a female rod, a shell and a locking device, the cross section of the male rod, the cross section of the female rod and the cross section of the shell are of U-shaped structures, one end of the shell is sleeved outside the male rod, and the other end of the shell is sleeved outside the female rod. One end of the male rod is sleeved outside the shell, the other end of the male rod is sleeved outside the female rod, openings of the male rod, the female rod and the shell face the same side, the male rod and the female rod can stretch out and draw back in the shell relative to the shell in the length direction of the shell, and a plurality of locking devices are arranged on the shell and can lock the male rod and the female rod in the shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric power safety operation tool, especially in 10kV portable wire insulation shelter. BACKGROUND

[0002] Wire insulation shelter is made of insulating material, and is used for shielding the protective cover of the live conductor or the unlive conductor part. In the live working tool, the shielding cover does not play a main insulation role, and it only applies to the insulation shielding or isolation protection when the live working personnel has a short-term collision, that is, when the contact is rubbed. The rapid development of social economy has higher and higher requirements for the reliability and safety of distribution network power supply. In the 10kV distribution line live working, in order to reduce the safety hazards of the working personnel, the insulation shielding cover is indispensable.

[0003] The existing wire insulation shielding cover has the defects of too many in use when shielding a long distance, the length of the shielding cover cannot be adjusted according to the actual working scene, the operation is difficult, and the transportation is inconvenient, so that the operation of the working personnel is limited, the working efficiency is low, and the size of the imported product is not suitable for the national standard of China, so it is necessary to develop a portable wire insulation shielding cover to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model provides a 10kV portable wire insulation shielding cover, solves the problem that the existing wire insulation shielding cover cannot be telescoped according to actual demand and is inconvenient to recycle and transport when operating.

[0005] The technical scheme of the utility model is as follows: a public rod, a female rod, a shell and a locking device are included, the cross sections of the public rod, the female rod and the shell are all U-shaped structures, the shell is sleeved on the outside of the public rod at one end and is sleeved on the outside of the female rod at the other end, the openings of the public rod, the female rod and the shell are all directed to the same side, the public rod and the female rod can be telescoped in the shell relative to the shell along the length direction of the shell, a plurality of locking devices are arranged on the shell and can lock the public rod and the female rod in the shell.

[0006] Preferably, the bottom of the U-shaped structure cross section of the public rod, the female rod and the shell is a circular arc segment, the two sides of the U-shaped structure are concave inward, the two ends of the U-shaped structure are curved outward to form an "eight" shaped opening, a notch is formed in the edge of the "eight" shaped opening structure on the public rod and the female rod along the length direction of the public rod / female rod, and the two notches are opposite to each other.

[0007] Preferably, the shell is hollow inside, both ends of the shell are provided with a necked structure, the connection between the inner wall of the necked structure and the inner wall of the shell is provided with a first stepped structure, the stepped surface of the first stepped structure faces the other end of the shell, the inner wall of the necked structure is provided with a sliding rod guide groove, the lower edge of the "8" shaped opening structure of the lower part of the shell is bent inward to form a sliding groove, and the lower edge of the "8" shaped opening structure of the male rod and the female rod extends into the sliding groove of the shell.

[0008] Preferably, the locking device is a reset type knob plunger, two opposite limiting grooves are arranged on the inwardly recessed section of the middle part of the inner wall of the necked structure at both ends of the shell, the limiting grooves penetrate in the length direction of the shell, the bottom of the limiting groove is provided with a through hole, and one reset type knob plunger is arranged at each through hole of the two limiting grooves of the outer wall of the shell, and the pin head of the reset type knob plunger penetrates through the through hole at the bottom of the limiting groove and extends into the inside of the shell.

[0009] Preferably, a first limiting strip is fixed to the outer wall of one end of the male rod, the first limiting strip is a U-shaped structure, the inner wall of which is fixedly attached to the outer wall of the male rod, the other end of the male rod is provided with a second stepped structure, the stepped surface of the outer wall of the male rod faces one side of the first limiting strip, and the stepped surface of the inner wall of the male rod faces the side away from the first limiting strip, and the second stepped structure end of the male rod extends into the shell.

[0010] Preferably, at least one sliding rod is arranged between the stepped surface of the outer wall of the male rod and the first limiting strip, the sliding rod is located on the circular arc section of the outer wall of the male rod, the axial direction of the sliding rod is parallel to the length direction of the male rod, and the sliding rod is matched with the corresponding sliding rod guide groove in the inner wall of the necked structure of the shell.

[0011] Preferably, the end of the male rod away from the second stepped structure is provided with a necked structure, the connection between the outer wall of the necked structure and the outer wall of the male rod is provided with a third stepped structure, and the stepped surface of the third stepped structure faces the other end of the male rod; the lower part of the end surface of the necked structure is an inclined surface inclined from top to bottom to the other end of the male rod, the outer wall of the inwardly recessed section of one side of the male rod is provided with two bosses, the bosses are provided with through holes, in the extension process of the male rod, the bosses can be clamped into the limiting grooves in the inner wall of the corresponding necked structure of the shell, and the pin head of the reset type knob plunger can be inserted into the through hole of the boss, so as to lock the male rod and the shell.

[0012] Preferably, the outer wall of the female rod is provided with a second limiting strip and a third limiting strip, the second limiting strip and the third limiting strip are both U-shaped structures, the inner wall is fixedly connected with the outer wall of the female rod, one end of the female rod away from the shell is provided with a fourth stepped structure, the third limiting strip is located between the second limiting strip and the fourth stepped structure, and the step surface of the fourth stepped structure faces away from the shell on the inner wall of the female rod; at least one sliding rod is arranged between the second limiting strip and the third limiting strip, the sliding rod is located on the arc segment of the outer wall of the female rod, the axial direction of the sliding rod is parallel to the length direction of the female rod, the sliding rod is matched with the sliding rod guide groove corresponding to the inner wall of the necked structure of the shell, and the female rod can be inserted into the inside of the second stepped structure of the male rod after the male rod and the female rod slide towards each other in the shell.

[0013] Preferably, one end of the female rod where the fourth stepped structure is located is a flared structure, the inner wall of the opening of the flared structure is provided with a fifth stepped structure, the step surface of the fifth stepped structure faces the step surface direction of the fourth stepped structure, the end of the flared structure is curved outward to form a circular arc chamfer structure, the lower part of the end face of the flared structure is a slope inclined from top to bottom to the other end of the female rod, the outer wall of the inwardly recessed section of one side of the female rod is provided with two bosses, the bosses are provided with through holes, and the bosses can be clamped into the limiting grooves in the inner wall of the necked structure corresponding to the shell in the extension and retraction process of the female rod. The pin head of the reset knob plunger can be inserted into the through hole of the boss, so that the female rod and the shell are locked.

[0014] Preferably, the outer surface of the necked structure of the male rod can be matched with the inner surface of the flared structure of the female rod, and when a plurality of groups of the 10kV portable wire insulation shielding covers are sequentially spliced, the male rod necked structure of any one group of 10kV portable wire insulation shielding cover can be inserted into the female rod flared structure of another group of 10kV portable wire insulation shielding cover adjacent to it.

[0015] The utility model discloses the beneficial effect lies in:

[0016] 1. Adopt telescopic structure, can adjust the length of shielding cover according to the demand of actual operation scene, convenient for the installation operation of operating personnel.

[0017] 2. The limiting strip is arranged on the male rod and the female rod, and is matched with the necking of the shell, so that the maximum extension and the shortest contraction positions of the male rod and the female rod can be limited.

[0018] 3. The position of the male rod and the female rod can be fixed and locked by using the reset knob plunger, which is convenient to operate and has high durability.

[0019] 4. The necked structure of the male rod can be inserted into the flared structure of the female rod, so that the sequential splicing of multiple groups of portable conductor insulation shielding covers can be realized, and the stability of the sequential connection of the multiple groups of portable conductor insulation shielding covers is improved.

[0020] 5. The "eight" shaped openings on the male rod and the female rod are provided with notches, and the notches are provided to ensure that no blocking phenomenon occurs when the shell is installed, thereby facilitating the operation in the assembly process.

[0021] 6. The slide groove provided on the shell can firstly ensure the smooth sliding of the male rod / female rod in the shell, and since the male rod, the female rod and the shell are flexible components, the slide groove can prevent the male rod / female rod from falling off due to the deformation of the shell when connected, and further ensure the stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure schematic view of a 10kV portable conductor insulation shielding cover is provided for the embodiment of the utility model;

[0023] Figure 2 A structure schematic view of a shell is provided for the embodiment of the utility model;

[0024] Figure 3 An internal view of the shell is provided for the embodiment of the utility model;

[0025] Figure 4 A side view of the shell is provided for the embodiment of the utility model;

[0026] Figure 5 A structure schematic view of a male rod is provided for the embodiment of the utility model;

[0027] Figure 6 A side view of the male rod is provided for the embodiment of the utility model;

[0028] Figure 7 An internal view of the male rod is provided for the embodiment of the utility model;

[0029] Figure 8 A structure schematic view of a female rod is provided for the embodiment of the utility model;

[0030] Figure 9 A side view of the female rod is provided for the embodiment of the utility model;

[0031] Figure 10 An internal view of the female rod is provided for the embodiment of the utility model;

[0032] Fig. 11 is a schematic view of the internal structure of the shell when the device is in the shortest contracted position;

[0033] Figure 12The structure schematic view of the male rod and the female rod and the shell locking provided by the utility model embodiment;

[0034] Figure 13 The structure schematic view of the boss provided by the utility model embodiment;

[0035] Figure 14 The structure schematic view of the maximum extension position of the device provided by the utility model embodiment;

[0036] Figure 15 The structure schematic view of the male rod and the female rod connection when the multiple groups of portable wire insulation shielding covers are sequentially spliced.

[0037] The reference signs are as follows:

[0038] 1, male rod; 2, shell; 3, female rod; 4, reset knob plunger; 5, arc segment; 6, "eight" shaped opening; 7, slide rod guide groove; 8, limiting groove; 9, sliding groove; 10, shell necking structure; 11, first limiting strip; 12, male rod slide rod; 13, first stepped structure; 14, boss; 15, second limiting strip; 16, female rod slide rod; 17, third limiting strip; 18, third stepped structure; 19, male rod necking structure; 20, female rod flaring structure; 21, notch; 22, recessed part; 23, second stepped structure; 24, fourth stepped structure; 25, fifth stepped structure; 26, arc chamfer. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The drawings show embodiments of the present application. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0040] As Figure 1 shown, the present embodiment provides a 10kV portable wire insulation shielding cover, which comprises a male rod 1, a female rod 3, a shell 2 and a locking device, the cross sections of the male rod 1, the female rod 3 and the shell 2 are all U-shaped structures, the shell 2 is sleeved outside the male rod 1 at one end and is sleeved outside the female rod 3 at the other end, and the openings of the male rod 1, the female rod 3 and the shell 2 are all directed to the same side, the male rod 1 and the female rod 3 can be telescoped along the length direction of the shell 2 relative to the shell 2 inside the shell 2, and the shell 2 is provided with multiple locking devices which can lock the male rod 1 and the female rod 3 inside the shell.

[0041] The bottom of the U-shaped cross-section of the male rod 1, female rod 3 and outer shell 2 is an arc segment 5. The two sides of the U-shaped structure are concave inward 22. The two ends of the U-shaped structure are bent outward to form an "eight" shaped opening 6. A notch 21 is opened along the edge of the "eight" shaped opening structure on the male rod and female rod along the length direction of the male rod / female rod, and the two notches are directly opposite each other.

[0042] like Figures 2 to 4 As shown, the outer shell 2 is hollow inside, and both ends of the outer shell are provided with a shell narrowing structure 10. The connection between the inner wall 10 of the shell narrowing structure and the inner wall of the outer shell 2 is provided with a first step structure 13. The stepped surface of the first step structure 13 faces the other end of the outer shell. The inner side of the narrowing structure is provided with a sliding rod guide groove 7. The lower edge of the "eight" shaped opening 6 structure at the bottom of the outer shell is bent inward to form a sliding groove 9. The lower edges of the "eight" shaped opening 6 structures of the male rod 1 and the female rod 3 are inserted into the sliding groove 9 of the outer shell. In this embodiment, the locking device is a reset type knob plunger 4. The middle section of the inner wall of the shell narrowing structure 10, which is recessed inward 22, is provided with two opposing limiting grooves 8. The limiting grooves 8 penetrate in the length direction of the outer shell 2. The bottom of the limiting grooves 8 is provided with a through hole. Each of the two limiting groove through holes on the outer wall of the outer shell 2 is provided with a reset type knob plunger 4. The pin of the reset type knob plunger 4 passes through the through hole at the bottom of the limiting groove 8 and extends into the interior of the outer shell 2.

[0043] In this embodiment, a first limiting strip 11 is fixed to the outer wall of one end of the male rod 1. The first limiting strip 11 has a U-shaped structure, and its inner wall is fitted and fixed to the outer wall of the male rod. A second stepped structure 23 is provided at the other end of the male rod. The stepped surface of the outer wall of the male rod faces the side of the first limiting strip 11, and the stepped surface of the inner wall of the male rod 1 faces the side away from the first limiting strip 11. The end of the second stepped structure 23 of the male rod extends into the outer shell. Two sliding rods 12 are provided between the stepped surface of the outer wall of the male rod and the limiting strip. The sliding rods 12 are located on the arc segment of the outer wall of the male rod, and their axial direction is parallel to the length direction of the male rod 1. The sliding rods 12 cooperate with the sliding rod guide groove 7 corresponding to the inner wall of the constricted structure 10 of the outer shell.

[0044] Furthermore, a male rod constriction structure 19 is provided at the end of the male rod away from the second step 23 structure. A third step structure 18 is provided at the connection between the outer wall of the male rod constriction structure 19 and the outer wall of the male rod 1. The stepped surface of the third step structure 18 faces the other end of the male rod. The lower part of the end face of the male rod constriction structure 19 is an inclined surface that slopes from top to bottom towards the other end of the male rod. Two bosses 14 are provided on the outer wall of the inwardly recessed section on one side of the male rod 1. The bosses are provided with through holes. During the extension and retraction of the male rod, the bosses can be engaged in the limiting groove 8 of the inner wall of the corresponding constriction structure 10 of the outer shell 2, and the pin of the reset type knob plunger 4 can be inserted into the through hole of the boss 14 to lock the male rod 1 and the outer shell 2.

[0045] In the embodiment, the outer wall of the female rod is provided with a second limiting strip 15 and a third limiting strip 17, both of which are U-shaped structures, the inner wall of which is fixedly attached to the outer wall of the female rod 3, and the end of the female rod 3 away from the shell 2 is provided with a fourth stepped structure 24, the third limiting strip 17 is located between the second limiting strip 15 and the fourth stepped structure 24, and the step surface of the fourth stepped structure 24 faces away from the shell 2; two slide rods are arranged between the second limiting strip 15 and the third limiting strip 17, the female rod slide rod 16 is located on the arc segment of the outer wall of the female rod, and the axial direction of the female rod slide rod 16 is parallel to the length direction of the female rod 3, the female rod slide rod 16 is matched with the slide rod guide groove 7 in the inner wall of the shell necked structure 10, and after the male rod 1 and the female rod 3 slide towards each other, the female rod 3 can be inserted into the inside of the second stepped structure 23 of the male rod, at this time, the two end surfaces of the shell 2 necked structure are respectively abutted with the first limiting strip 11 and the third limiting strip 17.

[0046] In the embodiment, the end of the female rod where the fourth stepped structure 24 is located is a female rod flared structure 20, the inner wall of the opening of the flared structure is provided with a fifth stepped structure 25, the step surface of the fifth stepped structure 25 faces the step surface direction of the fourth stepped structure 24, and the end of the female rod flared structure 20 is curved outward to form a circular arc chamfer structure 26, the lower part of the end surface of the female rod flared structure 20 is a downwardly inclined inclined surface towards the other end of the female rod, the outer wall of the inwardly recessed section of one side of the female rod is provided with two bosses 14, the bosses 14 are provided with through holes, and in the extension process of the female rod, the bosses 14 can be matched with the limiting grooves 8 in the inner wall of the corresponding necked structure of the shell, and the pin head of the reset knob plunger 4 can be inserted into the through hole of the boss 14, thereby achieving the locking of the female rod 3 and the shell 2.

[0047] Further, the outer surface of the necked structure of the male rod can be matched with the inner surface of the flared structure of the female rod, and when a plurality of 10kV portable wire insulation shielding covers are sequentially connected, the necked structure 19 of the male rod of any one 10kV portable wire insulation shielding cover can be inserted into the flared structure 20 of the female rod of another 10kV portable wire insulation shielding cover adjacent thereto.

[0048] The overall working principle of the above structure is described in detail as follows:

[0049] The shielding cover is initially in a contracted state, is sleeved on the wire through the shielding "eight" shaped opening 6, and then the knob of the reset knob plunger 4 is pulled outwards, and the pin head is retracted, at this time, by matching the slide rods on the male rod 1 and the female rod 3 with the slide rod guide grooves 7 on the shell necked structure 10, the positions of the male rod 1 and the female rod 3 can be adjusted to the maximum extension position, then the knob of the reset knob plunger 4 is loosened, the pin head is extended, and is respectively clamped into the through hole of the boss 14 of the male rod and the female rod, thereby locking the male rod and the female rod, and the shielding cover is completed to be extended.

[0050] After the work is completed, the knob of the reset knob plunger 4 is pulled outward, the male rod 1 and the female rod 3 are retracted into the shell 2 until the female rod is inserted into the second stepped structure 23 of the male rod, the knob of the reset knob plunger 4 is loosened, at this time, the pin head of the reset knob plunger is just clamped into the through hole of the corresponding boss 14 on the male rod and the female rod, the male rod and the female rod are locked, and then the device is taken off from the wire and stored.

[0051] Further explanation is as follows:

[0052] 1. In this embodiment, when the first limiting strip 11 on the male rod 1 abuts against the outside of the shell necking structure 10, the third limiting strip 17 on the female rod 3 abuts against the outside of the other end of the shell necking structure, and the female rod 3 is further inserted into the second stepped structure 23 of the male rod at one end of the shell 2, the front end face of the female rod 3 abuts against the stepped face on the inner wall of the second stepped structure 23, at this time, the device is in the shortest retracted position (retracted state); when the stepped face on the outer wall of the second stepped structure 23 of the male rod abuts against the stepped face on the inner wall of the first stepped structure 13 of the shell, and the second limiting strip 15 on the female rod abuts against the stepped face inside the first stepped structure 13 of the other end of the shell, the device reaches the maximum elongated position.

[0053] 2. The necking structure and the flaring structure in this embodiment are explained as follows: the necking structure at both ends of the shell is formed by gradually contracting the shell body part to the two ends of the shell, and the necking structure at one end of the male rod is the same as above. The flaring structure of the female rod is formed by gradually expanding the female rod body to the end face of the female rod.

[0054] 3. When the sequential splicing of multiple groups of portable wire insulation shielding covers is implemented, the necking structure of the male rod is inserted into the flaring structure 20 of the female rod through the circular arc chamfer 26 on the female rod, the front end face of the male rod 1 abuts against the stepped face on the inner wall of the fourth stepped structure 24 of the female rod, at the same time, the stepped face on the outer wall of the third stepped structure 18 of the male rod abuts against the stepped face of the fifth stepped structure 25 of the female rod, as shown in Figure 15 .

[0055] 4. In this embodiment, only two bosses are provided at the two extreme positions, and the number of bosses can be increased in other areas between the two extreme position bosses on the male rod and the female rod under different working conditions to meet the demand of different length adjustment.

[0056] 5. The male rod, the female rod and the shell are made of ductile insulating material, which can meet the 10kV withstand voltage test.

[0057] 6. The role of the notch: the notch structure is set to ensure that there is no blocking phenomenon when it is installed with the shell, that is, the shielding cover has elasticity after being pressed and is tightly attached to the outer wall of the wire to play a sealing role, and the notch can facilitate the removal after use, thereby facilitating the operation in the assembly process.

[0058] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A 10 kV portable conductor insulation shroud, characterized in that, The utility model provides a locking device for the telescopic rod, which comprises a male rod, a female rod, a shell and a locking device, the male rod, the female rod and the shell are all U-shaped in cross section, the shell is sleeved on the outside of the male rod at one end and on the outside of the female rod at the other end, the openings of the male rod, the female rod and the shell all face the same side, the male rod and the female rod can be telescopically extended and retracted in the shell relative to the shell along the length direction of the shell, and a plurality of locking devices are arranged on the shell to lock the male rod and the female rod inside the shell.

2. The 10 kV portable wire insulation shield of claim 1, wherein: The bottom of the U-shaped cross section of the male rod, the female rod and the shell is a circular arc segment, the two sides of the U-shaped structure are inwardly recessed, the two ends of the U-shaped structure are outwardly curved to form an "eight" shaped opening, a notch is formed in the edge of the "eight" shaped opening structure of the male rod and the female rod along the length direction of the male rod / female rod, and the two notches are opposite to each other.

3. The 10 kV portable conductor insulation shield of claim 2, wherein: The shell is hollow inside, the two ends of the shell are both provided with a necked structure, a first step structure is arranged at the connection between the inner wall of the necked structure and the inner wall of the shell, the step surface of the first step structure faces the other end of the shell, the inner wall of the necked structure is provided with a sliding rod guide groove, the lower edge of the "eight" shaped opening structure at the lower part of the shell is inwardly bent to form a sliding groove, and the lower edge of the "eight" shaped opening structure of the male rod and the female rod extends into the sliding groove of the shell.

4. The 10 kV portable conductor insulation shield of claim 3, wherein: The locking device is a reset type knob plunger, two opposite limiting grooves are arranged on the inwardly recessed section of the middle part of the inner wall of the necked structure at the two ends of the shell, the limiting grooves penetrate in the length direction of the shell, a through hole is arranged at the bottom of the limiting groove, and a reset type knob plunger is arranged at the through hole of each limiting groove of the outer wall of the shell, the pin head of the reset type knob plunger penetrates through the through hole at the bottom of the limiting groove and extends into the shell.

5. The 10 kV portable conductor insulation shield of claim 4, wherein: A first limiting strip is fixed to the outer wall of one end of the male rod, the first limiting strip is U-shaped in structure, the inner wall of the first limiting strip is fixedly connected with the outer wall of the male rod, a second step structure is arranged at the other end of the male rod, the step surface of the outer wall of the male rod faces one side of the first limiting strip, and the step surface of the inner wall of the male rod faces the side away from the first limiting strip, the end of the second step structure of the male rod extends into the shell.

6. The 10 kV portable wire insulation shield of claim 5, wherein: At least one sliding rod is arranged between the step surface of the outer wall of the male rod and the first limiting strip, the sliding rod is arranged on the circular arc segment of the outer wall of the male rod, the axial direction of the sliding rod is parallel to the length direction of the male rod, and the sliding rod is matched with the corresponding sliding rod guide groove of the inner wall of the necked structure of the shell.

7. The 10 kV portable wire insulation shield of claim 6, wherein: A necked structure is arranged at the end of the male rod away from the second step structure, a third step structure is arranged at the connection between the outer wall of the necked structure and the outer wall of the male rod, and the step surface of the third step structure faces the other end of the male rod; the end surface of the necked structure is inclined downward to the other end of the male rod, two bosses are arranged on the outer wall of the inwardly recessed section of one side of the male rod, through holes are arranged in the bosses, in the process of extension and retraction of the male rod, the bosses can be clamped into the limiting grooves in the inner wall of the corresponding necked structure of the shell, and the pin head of the reset type knob plunger can be inserted into the through hole in the boss, so that the male rod and the shell are locked.

8. The 10 kV portable wire insulation shield of claim 7, wherein: The outer wall of the female rod is provided with a second limiting strip and a third limiting strip, both of which are U-shaped structures with their inner walls fixedly attached to the outer wall of the female rod. The end of the female rod away from the shell is provided with a fourth stepped structure. The third limiting strip is located between the second limiting strip and the fourth stepped structure. The step surface of the fourth stepped structure faces away from the shell. At least one slide rod is provided between the second limiting strip and the third limiting strip. The slide rod is located on the arc segment of the outer wall of the female rod, with its axial direction parallel to the length direction of the female rod. The slide rod is matched with the slide rod guide groove corresponding to the inner wall of the shell neck structure. Inside the shell, after the male rod and the female rod slide towards each other, the female rod can be inserted into the inside of the second stepped structure of the male rod. At this time, the end faces of the shell neck structure are respectively in contact with the first limiting strip and the third limiting strip.

9. The 10 kV portable wire insulation shield of claim 8, wherein: The end of the female rod where the fourth stepped structure is located is an expanded structure. The inner wall of the opening of the expanded structure is provided with a fifth stepped structure. The step surface of the fifth stepped structure faces the direction of the step surface of the fourth stepped structure. The end of the expanded structure is curved outward to form a circular arc chamfer structure. The lower part of the end face of the expanded structure is a slope that inclines from top to bottom towards the other end of the female rod. The outer wall of the inwardly recessed section of one side of the female rod is provided with two bosses. The bosses are provided with through holes. During the extension and retraction of the female rod, the bosses can be clamped into the limiting grooves in the inner wall of the corresponding neck structure of the shell. The pin head of the reset knob plunger can be inserted into the through hole of the boss, achieving the locking of the female rod and the shell.

10. The 10 kV portable wire insulation shield of claim 9, wherein: The necked structure of the male rod can be matched with the inner surface of the expanded structure of the female rod. When multiple groups of the 10kV portable wire insulation shielding covers are sequentially connected, the necked structure of the male rod of any group of 10kV portable wire insulation shielding cover can be inserted into the expanded structure of the female rod of the adjacent group of 10kV portable wire insulation shielding cover.

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