Wire laying device for wire withstand voltage detection

Abstract

The utility model provides a kind of wire withstand voltage detection pay-off device, belong to electric power equipment detection technical field.The utility model's wire withstand voltage detection pay-off device includes: base, support rod, at least 2 hangers, universal wheel and stiffened plate.The utility model's wire withstand voltage detection pay-off device is good in stability, can supply multiple bundles of wire withstand voltage detection simultaneously, and multiple bundles of wire can avoid mutual entanglement.The utility model's wire withstand voltage detection pay-off device can be moved flexibly, and adapt to the test demand of different positions of laboratory or workshop.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment testing technology, specifically relating to a wire laying device for testing the withstand voltage of electrical wires. Background Technology

[0002] After production, wires and cables need to undergo withstand voltage testing (such as power frequency withstand voltage testing) to verify whether their insulation strength meets national standards. Traditional testing methods often involve hanging the coiled wire on a fixed support and then applying a high voltage (usually several kilovolts) to it for a current-carrying test. However, this method has the following problems:

[0003] (1) Multiple coils of wire need to be tested one by one. Frequent replacement of the coiled wire to be tested leads to test interruption and low test efficiency.

[0004] (2) Ordinary brackets cannot meet the requirement of suspending multiple rolls at the same time.

[0005] (3) If multiple coils of wire are forcibly suspended on the same bracket at the same time for simultaneous testing, the electric fields generated by adjacent coiled wires may couple during the test due to insufficient spacing or entanglement, thus affecting the test results (mutual coupling of electric fields will have some impact on the test results, especially when the degree of coupling is too large, it will greatly affect the test results).

[0006] (4) If multiple supports are set up to hang multiple bundles of coiled wires, the coiled wires need to be manually moved and placed on different supports. The supports are a certain distance apart, which is time-consuming and laborious for the operators. Utility Model Content

[0007] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a wire laying device for testing the withstand voltage of electrical wires.

[0008] This utility model provides a wire laying device for testing the withstand voltage of electrical wires, characterized by: a base; a support rod disposed on the base and pointing vertically upwards; and at least two hanging rods made of insulating material, horizontally fixed at different heights on the support rod with the fixing point located at the midpoint of the hanging rod. The vertical projections of two adjacent hanging rods are perpendicular to each other. The two ends of the hanging rods are used to hang the wires to be tested for withstand voltage, which are coiled and / or coiled, wherein the diameter of the wire after coiling and / or coiling is not greater than the vertical distance between the two adjacent hanging rods.

[0009] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following feature: the base is a flat cross-shaped structure, and the support rod is set at the intersection of the cross-shaped structure of the base and is perpendicular to the base.

[0010] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: the base and the support rod are both made of insulating material and / or have an insulating coating on their outer surfaces.

[0011] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following feature: it further includes several casters, which are evenly distributed below the base.

[0012] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: the base is a flat cross-shaped structure, the hanging rod is set at the intersection of the cross-shaped structure of the base and is perpendicular to the base, and the number of universal wheels is 4, with the 4 universal wheels located at the 4 ends of the cross-shaped structure of the base respectively.

[0013] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: it further includes several stiffening plates. The stiffening plates are disposed at the connection between the base and the support rod. One side of the stiffening plate is fixed to the support rod, and the other side is fixed to the upper surface of the base. The plane where the stiffening plate is located is perpendicular to the plane where the base is located. The several stiffening plates are evenly distributed around the support rod.

[0014] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: the base is a flat cross-shaped structure, the hanging rod is set at the intersection of the cross-shaped structure of the base and is perpendicular to the base, and the number of stiffening plates is 4. The 4 stiffening plates respectively reinforce and fix the 4 extensions of the cross-shaped structure of the base to the support rod.

[0015] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: the base, support rod and stiffening plate are all made of wood, and the base, support rod and stiffening plate are fixed to each other by mortise and tenon joints and / or by nail gun.

[0016] The wire laying device for electrical wire withstand voltage testing provided by this utility model may also have the following features: the support rod and the hanging rod are both made of wood, the support rod has through fixing holes at different heights, the axis of the fixing holes is horizontal, the axis of two adjacent fixing holes is perpendicular to each other, the hanging rod passes through the fixing holes and is fixed to the support rod by strong glue and / or by nails from a nail gun.

[0017] The wire laying device for testing the withstand voltage of wires provided by this utility model may also have the following features: the height of the support rod is 100cm to 150cm, the length of the hanging rod is 100cm to 140cm, the shortest distance between the hanging rod and the base in the vertical direction is 50cm to 70cm, and the shortest distance between the hanging rod and the top of the support rod in the vertical direction is 20cm to 40cm.

[0018] Functions and effects of utility models

[0019] According to the present invention, the wire laying device for withstand voltage testing includes: a base; a support rod disposed on the base and facing upward in the vertical direction; and at least two hanging rods made of insulating material, horizontally fixed at different heights of the support rod with the fixing point located at the midpoint of the hanging rod. The vertical projections of two adjacent hanging rods are perpendicular to each other. The two ends of the hanging rods are used to hang the wire to be tested for withstand voltage, which is coiled and / or coiled, wherein the diameter of the wire after coiling and / or coiling is not greater than the vertical distance between the two adjacent hanging rods.

[0020] Therefore, the wire laying device for testing the withstand voltage of wires of this utility model has the following beneficial effects:

[0021] (1) The setting of “fixing the midpoint of the hanging rod to the support rod” can ensure that the wire withstand voltage test device of this utility model has good balance when suspending wires in a loop and / or a coil.

[0022] (2) The “base + support rod + hanging rod midpoint fixed on the support rod” setting makes the wire withstand voltage test wire laying device of this utility model structurally stable and has good anti-overturning performance.

[0023] (3) The setting of “at least two hanging rods fixed at different heights of the support rod” enables the wire laying device for the wire withstand voltage test of this utility model to simultaneously suspend multiple coiled and / or coiled wires for high voltage withstand testing. Operators can suspend multiple coiled or coiled wires in the same area (on different hanging rods of the same support rod), saving time and effort (no need to move them to brackets fixed in different positions).

[0024] (4) The setting of “at least two hanging rods are fixed at different heights of the support rod + the vertical projections of two adjacent hanging rods are perpendicular to each other + the diameter of the wire after coiling and / or coiling is not greater than the vertical distance between two adjacent hanging rods” can minimize the impact of electric field coupling on the test results of coiled and / or coiled wires suspended on the hanging rods between the upper and lower parts during withstand voltage testing.

[0025] Furthermore, since the "midpoint of the hanging rod is fixed to the support rod", when the wires on both sides of the same hanging rod are used to hang coiled or coiled wires, there is a support rod between the two bundles of wires (with a certain distance). Therefore, when the two bundles of wires are subjected to withstand voltage testing, the degree to which the electric fields generated by the two bundles of wires couple with each other and affect the test results is further reduced (compared to the two bundles of wires being directly close to each other or intertwined).

[0026] (5) The setting of “the hanging pole is made of insulating material” ensures that the coiled or coiled wires hanging on the hanging pole will not generate eddy current effect on the hanging pole during withstand voltage testing (the eddy current effect will cause the hanging pole to heat up, turn red, or even be damaged). Attached Figure Description

[0027] Figure 1 This is a perspective view of the wire withstand voltage testing device in an embodiment of this utility model;

[0028] Figure 2 This is a first perspective view of the wire withstand voltage testing device in use according to an embodiment of the present invention.

[0029] Figure 3 This is a second perspective view of the wire withstand voltage testing device in use according to an embodiment of this utility model.

[0030] Figure 4 This is a third perspective view of the wire withstand voltage testing device in use according to an embodiment of the present invention.

[0031] Figure 5 This is a fourth perspective view of the wire withstand voltage testing device in the embodiments of this utility model when in use. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically describe the wire laying device for testing wire withstand voltage of this utility model.

[0033] <Example>

[0034] This embodiment provides a wire laying device 100 for testing the withstand voltage of electrical wires, including a base 10, a support rod 20, a stiffening plate 30, a hanging rod 40, and casters 50. The base 10, support rod 20, stiffening plate 30, and hanging rod 40 are all made of wood with an insulating coating on their outer surface.

[0035] The base 10 is a flat cross-shaped structure, with a length and width of 700cm and a thickness of 10cm.

[0036] The support rod 20 is a quadrangular prism, which is fixed to the cross-shaped structure of the base 10 by mortise and tenon joints and secured to the base 10 by nails fired from a nail gun. The support rod 20 extends upwards and is perpendicular to the plane of the base 10. The dimensions of the support rod 20 are 10×10×130cm.

[0037] The support rod 20 has through-holes at distances of 60cm and 100cm from the upper surface of the base 10, respectively, designated as the first fixing hole 20a and the second fixing hole 20b. The axes of the first fixing hole 20a and the second fixing hole 20b are horizontal and parallel or perpendicular to the four extended segments of the cross-shaped structure of the base 10. The axes of the first fixing hole 20a and the second fixing hole 20b are perpendicular to each other. The diameter of both the first fixing hole 20a and the second fixing hole 20b is 3cm.

[0038] The stiffening plate 30 is a triangular plate with two sides of 5cm and 10cm respectively, and a thickness of 10cm. There are four stiffening plates 30. The long sides of each of the four stiffening plates 30 are fixed to the four sides of the support rod 20 along its length using a nail gun. The short sides of each of the four stiffening plates 30 are fixed to the upper surfaces of the four extensions of the base 10 using a nail gun. The plane containing the stiffening plates 30 is perpendicular to the plane containing the base 10.

[0039] There are two hanging rods 40, each 120cm long and 3cm in radial diameter. The two hanging rods 40 are respectively inserted horizontally through the first fixing hole 20a and the second fixing hole 20b, and are centered in the first fixing hole 20a and the second fixing hole 20b by using a nail gun and strong adhesive.

[0040] There are 4 casters 50, which are fixed to the bottom of the 4 ends of the cross-shaped base 10 by screws.

[0041] Figure 2 This is a first perspective view of the wire withstand voltage testing device in use according to an embodiment of the present invention. Figure 3 This is a second perspective view of the wire withstand voltage testing device in use according to an embodiment of this utility model. Figure 4 This is a third perspective view of the wire withstand voltage testing device in use according to an embodiment of the present invention. Figure 5 This is a fourth perspective view of the wire withstand voltage testing device in the embodiments of this utility model when in use.

[0042] like Figures 1-5 As shown, the wire to be tested may be a coiled wire and / or a coiled wire wound on a winding frame, referred to as coiled wire A and coiled wire B, respectively.

[0043] The method of using the wire withstand voltage test device 100 in this embodiment is as follows: the operator moves the coiled wire A and / or the coiled wire B to the hanging rod 40, performs the withstand voltage test, and then moves them down.

[0044] The following are the operational precautions and points of attention when handling coiled wire A and / or coiled wire B and hanging them on the hanging rod 40:

[0045] (1) As Figure 2 , 3 As shown, in order to keep the entire wire withstand voltage test wire laying device 100 stable, the same coiled wire A or coiled wire B should preferably be hung on both sides of the support rod 20 on the same hanging rod 40, and the distance between the coiled wire A or coiled wire B on both sides and the support rod 20 should be the same (try to control the torque to be the same, and try to avoid the entire device from overturning due to excessive torque difference).

[0046] (2) Figure 4 As shown, even if different coiled wires A and coiled wires B are hung on the same hanging rod 40 on both sides of the support rod 20, as long as the operator controls the coiled wires B to be close to the support rod 20 to reduce the torque generated, and because the whole device itself has a certain stability and anti-overturning properties, the whole device will not overturn (the coiled wires A are relatively light and there is no need to consider the influence of the torque they generate).

[0047] (3) Figure 5 As shown, a single hanging rod 40 can also be used to hang only one coiled wire A or coiled wire B. However, the operator needs to keep the coiled wire B as close as possible to the support rod 20 to reduce the torque generated (the entire device itself has a certain degree of stability and anti-overturning ability. When only one coiled wire A or coiled wire B is hung on a hanging rod 40, as long as the coiled wire B is close to the support rod 20 to reduce the torque generated, the entire device will not overturn; the coiled wire A itself is relatively light and there is no need to consider the influence of the torque it generates).

[0048] (4) Specifically, in this embodiment, the distance between the two hanging rods 40 of the wire withstand voltage test device 100 is 40cm. Therefore, the operator needs to control the specifications (diameter after coiling) of the pre-coiled wire A or coiled wire B and the selection of the hanging rod 40 (the upper or lower hanging rod 40) according to the actual situation, so as to ensure that the coiled wire A or coiled wire B on the two different hanging rods 40 do not contact each other and that their horizontal projections overlap as little as possible or even do not overlap (to minimize the degree of mutual coupling of the electric fields generated by different wires during the test).

[0049] The role and effect of the embodiments

[0050] According to the embodiment of the present invention, a wire laying device for withstand voltage testing of electrical wires includes: a base; a support rod disposed on the base and facing upward in the vertical direction; and at least two hanging rods made of insulating material, which are horizontally fixed at different heights on the support rod and whose fixing points are located at the midpoint of the hanging rods. The vertical projections of two adjacent hanging rods are perpendicular to each other. The two ends of the hanging rods are used for hanging the wires to be tested for withstand voltage, which are coiled and / or coiled, wherein the diameter of the wire after coiling and / or coiling is not greater than the vertical distance between the two adjacent hanging rods.

[0051] Therefore, the wire laying device for wire withstand voltage testing in this embodiment has the following beneficial effects:

[0052] (1) The setting of “fixing the midpoint of the hanging rod to the support rod” can ensure that the wire withstand voltage test wire laying device of this embodiment has good balance when suspending wires in coils and / or coils.

[0053] (2) The “base + support rod + hanging rod midpoint fixed on the support rod” setting makes the wire withstand voltage test wire laying device of this embodiment structurally stable and has good anti-overturning performance.

[0054] (3) The setting of “at least two hanging rods fixed at different heights of the support rod” allows the wire laying device for wire withstand voltage testing in this embodiment to simultaneously suspend multiple coiled and / or coiled wires for high voltage withstand testing. Operators can suspend multiple coiled or coiled wires in the same area (on different hanging rods of the same support rod), saving time and effort (no need to move them to brackets fixed in different positions).

[0055] (4) The setting of “at least two hanging rods are fixed at different heights of the support rod + the vertical projections of two adjacent hanging rods are perpendicular to each other + the diameter of the wire after coiling and / or coiling is not greater than the vertical distance between two adjacent hanging rods” can minimize the impact of electric field coupling on the test results of coiled and / or coiled wires suspended on the hanging rods between the upper and lower parts during withstand voltage testing.

[0056] Furthermore, since the "midpoint of the hanging rod is fixed to the support rod", when the wires on both sides of the same hanging rod are used to hang coiled or coiled wires, there is a support rod between the two bundles of wires (with a certain distance). Therefore, when the two bundles of wires are subjected to withstand voltage testing, the degree to which the electric fields generated by the two bundles of wires couple with each other and affect the test results is further reduced (compared to the two bundles of wires being directly close to each other or intertwined).

[0057] (5) The setting of “the hanging pole is made of insulating material” ensures that the coiled or coiled wires hanging on the hanging pole will not generate eddy current effect on the hanging pole during withstand voltage testing (the eddy current effect will cause the hanging pole to heat up, turn red, or even be damaged).

[0058] Furthermore, the base is a flat cross-shaped structure, and the support rod is located at the intersection of the cross-shaped structure of the base and is perpendicular to the base.

[0059] This design, by optimizing the base into a cross shape, concentrates the center of gravity on the axis of the support rod, improving the overall anti-overturning ability of the device and making it suitable for suspending asymmetrical loads.

[0060] Furthermore, both the base and the support rod are made of insulating material and / or have an insulating coating on their outer surfaces.

[0061] This setup can block the leakage current path during high-voltage testing, ensuring the accuracy of test data and operational safety.

[0062] Furthermore, the wire laying device for withstand voltage testing also includes several casters, which are evenly distributed below the base. The base is a flat cross-shaped structure, and the hanging rod is located at the intersection of the cross-shaped structure of the base and perpendicular to the base. There are 4 casters, which are located at the 4 ends of the cross-shaped structure of the base.

[0063] This setup has the following advantages: (1) It enables the device to move flexibly and adapt to the testing needs of different locations in the laboratory or workshop; (2) The four wheels are located at the ends of the cross to form a stable support surface, preventing rolling and overturning.

[0064] Furthermore, the wire laying device for withstand voltage testing also includes several stiffening plates. These stiffening plates are positioned at the connection between the base and the support rod. One side of each stiffening plate is fixed to the support rod, and the other side is fixed to the upper surface of the base. The plane of the stiffening plate is perpendicular to the plane of the base. The stiffening plates are evenly distributed around the support rod. The base has a flat, cross-shaped structure. The hanging rod is positioned at the intersection of the cross-shaped structure and is perpendicular to the base. There are four stiffening plates, which respectively reinforce and fix the four extensions of the cross-shaped structure of the base to the support rod.

[0065] This setup has the following beneficial effects: (1) By evenly distributing the stiffening plates in a cross shape, it can resist the torque generated by the force on the hanging rod from being transmitted to the support rod, causing it to break at its root; (2) The four sets of stiffening plates match the extension section of the cross base to form a three-dimensional reinforced frame.

[0066] Furthermore, the base, support rod, and stiffening plate are all made of wood, and the base, support rod, and stiffening plate are fixed to each other by mortise and tenon joints and / or by nail guns.

[0067] This setup has the following advantages: (1) The natural insulation of wood can block the leakage current path in the high voltage test, ensuring the accuracy of the test data and the safety of operation; (2) The mortise and tenon structure avoids the risk of electrical conduction introduced by metal fasteners, and the nail gun helps to improve the efficiency / degree of assembly and fixing.

[0068] Furthermore, both the support rod and the hanging rod are made of wood. The support rod has through fixing holes at different heights. The axis of the fixing holes is horizontal, and the axis of two adjacent fixing holes is perpendicular to each other. The hanging rod passes through the fixing holes and is fixed to the support rod with strong adhesive and / or with nails from a nail gun.

[0069] This setup has the following advantages: (1) It ensures that adjacent hanging rods are accurately projected vertically; (2) The double fixation of adhesive and nails enhances the shear resistance of the hanging rods.

[0070] Furthermore, the height of the support rod is 100cm to 150cm, the length of the hanging rod is 100cm to 140cm, the shortest distance between the hanging rod and the base in the vertical direction is 50cm to 70cm, and the shortest distance between the hanging rod and the top of the support rod in the vertical direction is 20cm to 40cm.

[0071] This setting has the following beneficial effects: (1) It limits the minimum height of the hanging pole to prevent coiled and / or coiled wires from touching the ground, while facilitating the operator to handle and suspend them; (2) It limits the maximum height of the hanging pole to ensure that the top of the support pole has a margin to avoid high voltage flashover.

[0072] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wire-laying device for testing the withstand voltage of electrical wires, characterized in that, include: Base; A support rod is mounted on the base and faces upward in the vertical direction; as well as At least two hanging rods, made of insulating material, are horizontally fixed at different heights on the support rod, with the fixing point located at the midpoint of the hanging rod. The vertical projections of two adjacent hanging rods are perpendicular to each other. The two ends of the hanging rods are used to hang coiled and / or coiled wires to be tested for high voltage resistance. Wherein, the diameter of the wire after being coiled and / or coiled is not greater than the vertical distance between two adjacent hanging rods.

2. The wire-laying device for withstand voltage testing of electrical wires according to claim 1, characterized in that: in, The base has a flat, cross-shaped structure. The support rod is located at the intersection of the cross-shaped structure of the base and is perpendicular to the base.

3. The wire-laying device for withstand voltage testing of electrical wires according to claim 1, characterized in that: in, Both the base and the support rod are made of insulating material and / or have an insulating coating on their outer surfaces.

4. The wire-laying device for withstand voltage testing of electrical wires according to claim 1, characterized in that, It also includes several omnidirectional wheels, Several of the aforementioned casters are evenly distributed below the base.

5. The wire laying device for withstand voltage testing of electrical wires according to claim 4, characterized in that: in, The base has a flat, cross-shaped structure, and the hanging rod is located at the intersection of the cross-shaped structure of the base and is perpendicular to the base. The number of casters is 4, and the 4 casters are located at the 4 ends of the cross-shaped structure of the base.

6. The wire-laying device for withstand voltage testing of electrical wires according to claim 1, characterized in that, It also includes several stiffening plates, The stiffening plate is disposed at the connection between the base and the support rod. One side of the stiffening plate is fixed to the support rod, and the other side is fixed to the upper surface of the base. The plane of the stiffening plate is perpendicular to the plane of the base. Several stiffening plates are evenly distributed around the support rod.

7. The wire laying device for withstand voltage testing of electrical wires according to claim 6, characterized in that: in, The base has a flat, cross-shaped structure, and the hanging rod is located at the intersection of the cross-shaped structure of the base and is perpendicular to the base. The number of stiffening plates is 4, and the 4 stiffening plates respectively reinforce and fix the 4 extensions of the cross-shaped structure of the base to the support rod.

8. The wire laying device for withstand voltage testing of electrical wires according to claim 6, characterized in that: in, The base, the support rod, and the stiffening plate are all made of wood. The base, the support rod, and the stiffening plate are fixed to each other by mortise and tenon joints and / or by nail gun.

9. The wire laying device for withstand voltage testing of electrical wires according to claim 1, characterized in that: in, Both the support rod and the hanging rod are made of wood. The support rod has through fixing holes at different heights, the axis of which is horizontal, and the axes of two adjacent fixing holes are perpendicular to each other. The hanging rod passes through the fixing hole and is fixed to the support rod by strong adhesive and / or by nails fired from a nail gun.

10. The wire-laying device for withstand voltage testing of electrical wires according to any one of claims 1 to 9, characterized in that: in, The height of the support rod is 100cm to 150cm. The length of the hanging rod is 100cm to 140cm. The shortest distance between the hanging rod and the base in the vertical direction is 50cm to 70cm, and the shortest distance between the hanging rod and the top of the support rod in the vertical direction is 20cm to 40cm.

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