A high-voltage electroscope extension device

Abstract

The present invention discloses a high-voltage electroscope extension device, comprising a sleeve, a telescopic rod, a gripping handle, and a tripod, wherein the sleeve and the gripping handle are respectively fixed to the two ends of the telescopic rod, and the tripod is fixed to the lower end of the gripping handle, so that the high-voltage electroscope device can be placed upright on the ground; the tripod comprises an extension member, a connecting member fixed to the gripping handle, and a plurality of support rods hinged to the connecting member at one end, the extension member is arranged between the plurality of support rods and slidably connected to the connecting member, the outer wall of the extension member is provided with a plurality of avoidance grooves adapted to the plurality of support rods, the inner wall of the connecting member is provided with a slide groove inclined relative to the vertical direction, and a slider adapted to the slide groove is fixed to the extension member. The present invention provides a high-voltage electroscope extension device, which can effectively solve the problem of insufficient electroscope length, avoid climbing for electrical testing, shorten the switching operation time, and the extension device can be placed on the ground stably and quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power safety equipment, in particular to a high-voltage electroscope extension device. Background Art

[0002] High-voltage testers are a common safety tool in substations. During substation switching operations, the high test location often results in insufficient tester length, necessitating the use of a ladder. In some cases, the difficult test location requires constant movement and adjustment of the ladder, making testing time-consuming and labor-intensive, while also increasing safety risks. Summary of the Invention

[0003] In order to overcome the problem in the prior art that the electroscope is insufficient in length due to the high electroscope position when performing switching operations on substations, the present invention provides a high-voltage electroscope extension device, which can effectively solve the problem of insufficient electroscope length, avoid climbing up to test the electroscope, shorten the switching operation time, and the extension device can be stably and quickly placed on the ground.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A high-voltage electroscope extension device includes a sleeve, a telescopic rod, a gripping handle, and a tripod. The sleeve and the gripping handle are respectively fixed to the two ends of the telescopic rod, and the tripod is fixed to the lower end of the gripping handle, so that the high-voltage electroscope device can be placed upright on the ground; the tripod includes an extension piece, a connecting piece fixed to the gripping handle, and a plurality of support rods hinged to the connecting piece at one end. The extension piece is arranged between the plurality of support rods and is slidably connected to the connecting piece. The outer wall of the extension piece is provided with a plurality of avoidance grooves adapted to the plurality of support rods. The inner wall of the connecting piece is provided with a sliding groove inclined relative to the vertical direction, and a slider adapted to the sliding groove is fixed on the extension piece. When the extension piece slides relative to the connecting piece in the vertical direction, the slider slides in the sliding groove and the extension piece rotates relative to the connecting piece. When the slider is located at the upper end of the sliding groove, the avoidance groove and the support rod are staggered, and the outer side wall of the extension piece presses against the inner side wall of the support rod. When the slider is located at the lower end of the sliding groove, the avoidance groove and the support rod are arranged relative to each other, and the support rod contracts and is located in the corresponding avoidance groove.

[0006] In the above technical solution, when using the above extension device, first fix the handle of the high-voltage electroscope on the sleeve, then adjust the length of the telescopic rod, and then extend the high-voltage electroscope to the designated position through the telescopic rod for measurement. The above technical solution can effectively solve the problem of insufficient electroscope length during the switching operation of the substation. When the tripod is unfolded, the extension device can be placed stably and upright, meeting the use requirements, and is convenient and quick. When the tripod is closed, the length that the device can be extended can be increased, and interference with the operator can also be avoided. Through the above device, the operator no longer needs to carry a ladder when preparing tools, saving time and effort; there is no need to fix or climb the ladder when testing electricity, which reduces the time of electricity testing, reduces the safety hazards of the operator, and avoids the dangerous situation of the ladder being unstable and the operator shaking on the ladder; at the end of the electricity test, the extension device can be stably placed on the ground through the tripod, avoiding the situation where the electroscope cannot be upright, eliminating the risk of the electroscope tipping over and breaking, further reducing power outage time, and improving power supply reliability. When the extension member is brought close to the connecting member, the extension member can press against the inner sides of the plurality of support rods to unfold the tripod. During use, all the support rods of the tripod can be unfolded by simply lifting the extension member with one foot or one hand. Compared with unfolding the support rods one by one, this solution is more convenient to operate. Moreover, due to the obstruction of the extension member, before the extension device is placed on the ground, the extension member only needs to be kept close to the connecting member to prevent the plurality of support rods from retracting under the action of gravity. When the slider is at the upper end of the slide, the avoidance groove is offset from the support rods, and the outer wall of the extension member presses against the inner wall of the support rods. At this time, the extension member can keep the plurality of support rods of the tripod in the unfolded state. When the slider is at the lower end of the slide, the avoidance groove is opposite to the support rods, and the support rods are retracted and located in the corresponding avoidance groove. At this time, the tripod can be fully retracted without interfering with the operator, and the length of the extension device can be increased when the tripod is closed. The support rod is located in the avoidance groove, which can increase the stability of the support rod. The support rod is not easy to shake relative to the connecting piece, which is convenient for operators to hold.

[0007] Preferably, the device further includes a locking member, which is disposed on the side wall of the sleeve and has one end extending into the sleeve to secure the electroscope handle. The locking member is a butterfly screw, one end of which is disposed outside the sleeve and the other end of which passes through the side wall of the sleeve and extends into the sleeve to tighten the electroscope handle. In the above embodiment, the inner wall diameter of the sleeve is 40 mm and the length is 115 mm, so as to connect electroscopes of different specifications. The handle of a high-voltage electroscope can be placed in the sleeve and the locking member can be used to secure the high-voltage electroscope.

[0008] Preferably, the butterfly screw is made of nylon, and the head of the butterfly screw is covered with a rubber sheath. This solution can effectively prevent the butterfly screw from causing wear on the high-voltage electroscope handle. The head refers to the part of the butterfly screw that extends into the sleeve.

[0009] Preferably, the slide groove includes an inclined groove and a vertical groove arranged along the axial direction of the telescopic rod, the lower end of the inclined groove is connected to the upper end of the vertical groove, and the outer wall of the extension piece is provided with a tapered surface, and the tapered surface is arranged above the avoidance groove and partially overlaps with the avoidance groove. When the slider is located at the lower end of the vertical groove, the avoidance groove and the support rod are arranged opposite to each other, and the support rod is retracted and located in the corresponding avoidance groove; when the slider is located at the lower end of the inclined groove, the tapered surface contacts the inner side wall of the support rod, and the avoidance groove and the support rod are arranged opposite to each other, and the support rod is in a semi-expanded state and is located outside the avoidance groove; when the slider is located at the upper end of the inclined groove, the avoidance groove and the support rod are staggered, and the tapered surface presses tightly against the inner side wall of the support rod.

[0010] The above technical solution can ensure that the support rods are located in the avoidance groove when in the retracted state, and can also ensure that the expansion process will not interfere with the avoidance groove. There is no need to manually expand the support rods one by one. All the support rods of the tripod can be expanded by simply pushing the extension piece upwards.

[0011] Preferably, a sheath is provided at the upper end of the gripping handle.

[0012] Preferably, the telescopic rod includes a first sleeve, a second sleeve, and a third sleeve. The first sleeve is sleeved outside the second sleeve, and a first locking member is provided between the first and second sleeves for locking the two sleeves. The second sleeve is sleeved outside the third sleeve, and a second locking member is provided between the second and third sleeves for locking the two sleeves. The lower end of the first sleeve is fixed to the handle, and the upper end of the third sleeve is fixed to the sleeve. The first and second locking members may be rotating buckles. When the first and second locking members are released, the length of the telescopic rod can be adjusted. After the adjustment is completed, the first and second locking members are locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 ;

[0014] Figure 2 is a top view of the extension member of the present invention;

[0015] Figure 3 This is a schematic diagram of the local structure of the present invention Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the structure of the present invention Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the structure of the present invention Figure 3 ;

[0018] Figure 6 This is a schematic diagram of the local structure of the present invention Figure 2 ;

[0019] Figure 7 This is a schematic diagram of the structure of the present invention Figure 4 ;

[0020] Figure 8 This is a schematic diagram of the structure of the present invention Figure 5 ;

[0021] Figure 9 This is a schematic diagram of the structure of the present invention Figure 6 .

[0022] In the figure: sleeve 1, telescopic rod 2, first sleeve 2.1, second sleeve 2.2, third sleeve 2.3, first locking member 2.4, second locking member 2.5, locking member 3, gripping handle 4, tripod 5, connecting member 5.1, support rod 5.2, extension member 5.3, avoidance groove 5.4, slide groove 5.5, inclined groove 5.5.1, vertical groove 5.5.2, slider 5.6, tapered surface 5.7, sheath 6. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1:

[0025] like Figure 1 As shown, a high-voltage electroscope extension device includes a sleeve 1, a telescopic rod 2, a locking member 3, a gripping handle 4, and a tripod 5. The sleeve 1 and gripping handle 4 are respectively fixed to the ends of the telescopic rod 2. The locking member 3 is arranged on the side wall of the sleeve 1 and extends into the sleeve 1 at one end to secure the electroscope handle. The tripod 5 is fixed to the lower end of the gripping handle 4 so that the extension device can be placed upright on the ground. The tripod 5 includes a connecting member 5.1 fixed to the gripping handle 4 and a plurality of supporting rods 5.2 hinged to the connecting member 5.1 at one end. The connecting member 5.1 is fixed to the gripping handle 4 by bolts. The upper end of the gripping handle 4 is provided with a sheath 6.

[0026] In the above technical solution, the sleeve 1 has an inner wall diameter of 40 mm and a length of 115 mm to accommodate electroscopes of various specifications. To use the extension device, first place the handle of the high-voltage electroscope into the sleeve 1, secure it with the locking member 3, then adjust the length of the telescopic rod 2. The telescopic rod 2 is then used to extend the high-voltage electroscope to the desired position for measurement. This technical solution effectively solves the problem of insufficient electroscope length during substation switching operations. The tripod 5 ensures a stable and upright placement of the high-voltage electroscope, meeting user requirements and providing convenience. With this device, operators no longer need to carry a ladder when preparing tools, saving time and effort. During electrical testing, there's no need to secure or climb the ladder, reducing testing time and potential safety hazards for operators, avoiding the danger of unstable ladders and teetering on them. At the end of the test, the extension device can be stably placed on the ground via the tripod 5, preventing the electroscope from being unable to stand upright and eliminating the risk of it tipping over and breaking. This further reduces power outages and improves power supply reliability. The tripod 5 can be opened and closed, and when the tripod 5 is closed, the length that the device can be extended can be increased, and interference with the operator can also be avoided. When the tripod 5 is unfolded, the extension device can be placed upright on the ground.

[0027] The telescopic rod 2 includes a first sleeve 2.1, a second sleeve 2.2, and a third sleeve 2.3. The first sleeve 2.1 is sleeved outside the second sleeve 2.2. A first locking member 2.4 is provided between the first and second sleeves 2.1, 2.2 for locking the two sleeves together. The second sleeve 2.2 is sleeved outside the third sleeve 2.3. A second locking member 2.5 is provided between the second and third sleeves 2.2, 2.3 for locking the two sleeves together. The lower end of the first sleeve 2.1 is fixed to the handle 4, and the upper end of the third sleeve 2.3 is fixed to the sleeve 1. The first and second locking members 2.4, 2.5 may be rotating buckles. When the first and second locking members 2.4, 2.5 are released, the length of the telescopic rod 2 can be adjusted. Once the adjustment is completed, the first and second locking members 2.4, 2.5 are locked.

[0028] The locking member 3 is a butterfly screw. One end of the butterfly screw is positioned outside the sleeve 1, while the other end penetrates the side wall of the sleeve 1, extending into the sleeve 1 and tightening the electroscope handle. The butterfly screw is made of nylon, and the head of the butterfly screw is covered with a rubber sheath 6. This solution effectively prevents the butterfly screw from causing wear on the high-voltage electroscope handle. The head refers to the portion of the butterfly screw that extends into the sleeve 1.

[0029] Example 2:

[0030] like Figure 1As shown, based on Example 1, the tripod 5 further includes an extension member 5.3, which is disposed between the plurality of support rods 5.2 and is slidably connected to the connecting member 5.1. When the extension member 5.3 is brought close to the connecting member 5.1, the extension member 5.3 can press against the inner sides of the plurality of support rods 5.2, causing the tripod 5 to unfold. During use, all the support rods 5.2 of the tripod 5 can be unfolded by simply lifting the extension member 5.3 upward with one foot or one hand. Compared to unfolding the support rods 5.2 one by one, this solution is more convenient to operate. Moreover, due to the obstruction of the extension member 5.3, before the extension device is placed on the ground, the extension member 5.3 only needs to be kept close to the connecting member 5.1 to prevent the support rods 5.2 from retracting under the action of gravity.

[0031] Example 3:

[0032] On the basis of Example 2, Figure 2 and Figure 3 As shown, the outer wall of the extension member 5.3 is provided with a plurality of avoidance grooves 5.4 adapted to the plurality of support rods 5.2, and the inner wall of the connecting member 5.1 is provided with a slide groove 5.5 inclined relative to the vertical direction. A slider 5.6 adapted to the slide groove 5.5 is fixed to the extension member 5.3. When the extension member 5.3 slides relative to the connecting member 5.1 in the vertical direction, the slider 5.6 slides in the slide groove 5.5, and the extension member 5.3 rotates relative to the connecting member 5.1. Figure 5 As shown, when the slider 5.6 is located at the upper end of the slide groove 5.5, the avoidance groove 5.4 and the support rod 5.2 are staggered, and the outer wall of the extension piece 5.3 presses against the inner wall of the support rod 5.2. Figure 4 As shown, when the slider 5.6 is located at the lower end of the slide groove 5.5, the avoidance groove 5.4 is arranged opposite to the support rod 5.2, and the support rod 5.2 is retracted and located in the corresponding avoidance groove 5.4.

[0033] In the above technical solution, when the slider 5.6 is at the upper end of the chute 5.5, the avoidance groove 5.4 is offset from the support rod 5.2, and the outer wall of the extension member 5.3 presses against the inner wall of the support rod 5.2. In this case, the extension member 5.3 can keep the multiple support rods 5.2 of the tripod 5 in the extended state. When the slider 5.6 is at the lower end of the chute 5.5, the avoidance groove 5.4 is opposite to the support rod 5.2, and the support rod 5.2 is retracted and located in the corresponding avoidance groove 5.4. At this time, the tripod 5 can be fully retracted without interfering with the operator. When the tripod is closed, the length of the extension device can be increased. The support rod 5.2 is located in the avoidance groove 5.4, which can increase the stability of the support rod 5.2, and the support rod 5.2 is not easy to shake relative to the connecting member 5.1, which is convenient for the operator to hold.

[0034] Preferably, Figure 6As shown, the chute 5.5 includes an inclined chute 5.5.1 and a vertical chute 5.5.2 arranged along the axial direction of the telescopic rod 2. The lower end of the inclined chute 5.5.1 is connected to the upper end of the vertical chute 5.5.2. Figure 7 As shown, the outer wall of the extension member 5.3 is provided with a tapered surface 5.7, which is arranged above the avoidance groove 5.4 and partially overlaps with the avoidance groove 5.4. When the slider 5.6 is located at the lower end of the vertical groove 5.5.2, the avoidance groove 5.4 and the support rod 5.2 are arranged opposite to each other, and the support rod 5.2 is retracted and located in the corresponding avoidance groove 5.4; when the slider 5.6 is located at the lower end of the inclined groove 5.5.1 (that is, the slider 5.6 is located at the junction of the inclined groove 5.5.1 and the vertical groove 5.5.2), as shown Figure 8 As shown, the conical surface 5.7 contacts the inner wall of the support rod 5.2, the avoidance groove 5.4 is arranged opposite to the support rod 5.2, and the support rod 5.2 is in a semi-expanded state and is located outside the avoidance groove 5.4; when the slider 5.6 is located at the upper end of the inclined groove 5.5.1, as shown Figure 9 As shown, the avoidance groove 5.4 is staggered with the support rod 5.2, the outer wall of the extension piece 5.3 presses against the inner wall of the support rod 5.2, the conical surface 5.7 presses against the inner wall of the support rod 5.2 and the support rod 5.2 is in an expanded state.

[0035] The above technical solution can not only ensure that the support rods are located in the avoidance groove when in the retracted state, but also ensure that the expansion process will not interfere with the avoidance groove. There is no need to manually expand the support rods one by one. All the support rods of the tripod can be expanded by simply pushing the extension piece upwards.

Claims

1. A high voltage electroscope extension device, characterized in that: The device comprises a sleeve, a telescopic rod, a gripping handle and a tripod, wherein the sleeve and the gripping handle are respectively fixed at both ends of the telescopic rod, and the tripod is fixed at the lower end of the gripping handle so that the high-voltage electrical test device can be placed upright on the ground; the tripod comprises an extension piece, a connecting piece fixed to the gripping handle, and a plurality of support rods hinged to the connecting piece at one end, the extension piece is arranged between the plurality of support rods and is slidably connected to the connecting piece, and a plurality of avoidance grooves adapted to the plurality of support rods are provided on the outer wall of the extension piece, and the connecting piece The inner wall of the sliding groove is provided with an inclined groove arranged relative to the vertical direction, and a slider adapted to the sliding groove is fixed on the extension member. When the extension member slides relative to the connecting member in the vertical direction, the slider slides in the sliding groove and the extension member rotates relative to the connecting member. When the slider is located at the upper end of the sliding groove, the avoidance groove and the support rod are staggered, and the outer side wall of the extension member presses against the inner side wall of the support rod. When the slider is located at the lower end of the sliding groove, the avoidance groove and the support rod are arranged relative to each other, and the support rod contracts and is located in the corresponding avoidance groove. The slide groove includes an inclined groove and a vertical groove arranged along the axial direction of the telescopic rod, the lower end of the inclined groove is connected to the upper end of the vertical groove, the outer side wall of the extension piece is provided with a tapered surface, the tapered surface is arranged above the avoidance groove and partially overlaps with the avoidance groove, when the slider is located at the lower end of the vertical groove, the avoidance groove and the support rod are arranged opposite to each other, the support rod is retracted and located in the corresponding avoidance groove; when the slider is located at the lower end of the inclined groove, the tapered surface contacts the inner side wall of the support rod, the avoidance groove and the support rod are arranged opposite to each other, the support rod is in a semi-expanded state and is located outside the avoidance groove; when the slider is located at the upper end of the inclined groove, the avoidance groove and the support rod are staggered, and the tapered surface presses against the inner side wall of the support rod.

2. A high-voltage electroscope extension device according to claim 1, characterized in that: It also includes a locking piece, which is arranged on the side wall of the sleeve and one end of which extends into the sleeve to fix the electroscope handle. The locking piece is a butterfly screw, one end of which is arranged outside the sleeve, and the other end of the butterfly screw passes through the side wall of the sleeve and extends into the sleeve to tighten the electroscope handle.

3. A high-voltage electroscope extension device according to claim 2, characterized in that: The butterfly screw is made of nylon, and the head of the butterfly screw is covered with a rubber sheath.

4. A high-voltage electroscope extension device according to claim 1, characterized in that: The upper end of the gripping handle is provided with a sheath.

5. A high-voltage electroscope extension device according to claim 1, characterized in that: The telescopic rod includes a first sleeve, a second sleeve and a third sleeve. The first sleeve is sleeved on the outside of the second sleeve. A first locking piece for locking the first sleeve and the second sleeve is provided between the first sleeve and the second sleeve. The second sleeve is sleeved on the outside of the third sleeve. A second locking piece for locking the second sleeve and the third sleeve is provided between the second sleeve and the third sleeve. The lower end of the first sleeve is fixed to the gripping handle, and the upper end of the third sleeve is fixed to the sleeve.

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