A gripping device for electrical equipment

Abstract

The application provides a clamping device for power equipment, comprising a rod body, a circuit connecting block, a clamping and polishing assembly and a linkage assembly; a fixed seat and a movable seat are arranged at the top of the rod body, the movable seat is embedded in the fixed seat, and the movable seat is in sliding connection with the fixed seat; a clamping and polishing assembly capable of being opened and closed is arranged on one side of the fixed seat, and the clamping and polishing assembly is used for clamping a test equipment connector; a linkage assembly is arranged in the movable seat, the top end of the linkage assembly penetrates through the fixed seat and is connected with the clamping and polishing assembly, and the linkage assembly is used for controlling the clamping and polishing assembly to perform opening and closing actions; the circuit connecting block is arranged in the middle of the rod body, and a test wire is arranged on the circuit connecting block, and the test wire is used for measuring parameters of a test equipment. The personnel of the application can stably clamp a test equipment connector on a work platform, without the need to climb and use an aerial work vehicle, so that the work efficiency is improved and the safety risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of mechanical technology, and in particular to a clamping device for electrical equipment. Background Technology

[0002] Tests on large power equipment, such as dielectric loss, DC resistance, capacitance, and inductance measurements, require clamping the test leads at the equipment's connection point. These connection points are typically high and inaccessible to insulated ladders. Using aerial work platforms involves specialized equipment and requires a customized plan, significantly increasing the workload. Currently used aerial work platform clamps have a single angle and intelligently clamp the conductors. Because the conductors pass through the connection point and transition piece between them and the test equipment, the measured data will be inaccurate. Furthermore, the copper and aluminum parts of electrical equipment are exposed to the external environment for extended periods, resulting in an oxide layer on their surface. If this oxide layer is not removed before testing, it will also affect the accuracy of the measurements.

[0003] The existing method mainly involves using telescopic high-altitude wiring clamps to grip exposed power cables and then leading the test leads from the clamps to the testing instrument. However, these clamps have a single angle, and since on-site equipment connectors have various angles, the clamps cannot be adjusted to a suitable angle for gripping. Furthermore, these clamps can only grip power cables or metal plates of specific shapes, making them unsuitable for various connector shapes. The gripping point is also far from the testing equipment, leading to significant test result errors. Telescopic clamps cannot grip conduit connectors. When testing conduits, manual climbing to the top of the conduit is necessary for grinding and gripping. If the test data is inaccurate, personnel must repeatedly climb the conduit to grip and connect the connectors, resulting in poor efficiency and safety risks.

[0004] The current testing method generally involves manual wire clamping inspection. Before the inspection, it is necessary to climb up to the terminal block and polish off the oxide layer. After the oxide layer is removed, the subsequent test can obtain accurate results. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping device for power equipment, which solves the technical problem of how to stably clamp the connector of the test equipment on the work platform without climbing or using an aerial work platform.

[0006] On one hand, a clamping device for power equipment is provided, comprising:

[0007] Rod body, circuit connection block, clamping and grinding assembly and linkage assembly;

[0008] The top of the rod is provided with a fixed seat and a movable seat, the movable seat is embedded in the fixed seat, and the movable seat and the fixed seat are slidably connected;

[0009] An openable clamping and grinding assembly is provided on one side of the fixed base, and the clamping and grinding assembly is used to clamp the test equipment connector.

[0010] The movable seat is provided with a linkage component. The top end of the linkage component passes through the fixed seat and is connected to the clamping and grinding component. The linkage component is used to control the clamping and grinding component to perform opening and closing actions.

[0011] The circuit connection block is located in the middle of the rod, and a test wire is installed on the circuit connection block. The test wire is used to measure the parameters of the test equipment.

[0012] Preferably, the clamping and polishing assembly includes at least a polishing rod and a movable rod; the outer edge of the polishing rod is provided with a polishing part, and the polishing rod and the fixed seat are rotatably connected by a bearing; the movable rod and the fixed seat are vertically slidably connected.

[0013] Preferably, the fixed base is provided with a plurality of elastic telescopic rods, one end of the elastic telescopic rod is fixedly connected to the fixed base, and the other end of the elastic telescopic rod is connected to the movable rod. The elastic telescopic rod is used to drive the movable rod to move downward.

[0014] Preferably, a first rope and a second rope are fitted onto the polishing rod; the second rope is sequentially fitted onto the polishing rod and the movable rod; the first rope can pull the polishing rod downward to rotate, and the second rope can pull the movable rod downward to move it upward.

[0015] Preferably, the linkage component includes at least a transmission rod; a slider is fixedly connected to the end of the transmission rod, and a limiting hook is provided inside the slider; a pin is provided on one side of the limiting hook, the pin is embedded in a sliding groove provided on one side of the slider, and the limiting hook is slidably connected to the slider through the pin and the sliding groove.

[0016] Preferably, a linkage component is also provided on one side of the slider. The linkage component is fixed to the inner wall of the fixed base. The limiting hook is connected to the linkage component through the pin. The linkage component connects the first rope and the second rope.

[0017] Preferably, a rack is provided on the fixed base, and the rack is connected to the limiting hook in cooperation with each other. When the movable base drives the slider to move upward, the limiting hook cannot move upward under the limitation of the rack.

[0018] Preferably, the slider is provided with an inclined edge. When the movable seat moves the slider upward, the inclined edge gradually presses against the protrusion on the limiting hook, causing the limiting hook to disengage from the rack.

[0019] Preferably, an elastic element is provided between the linkage and the limiting hook, and the elastic element is used to make the limiting hook press tightly against the rack through elastic force.

[0020] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0021] The clamping device for power equipment provided by this invention is adaptable to various equipment joint angles. During the clamping process, the clamping and grinding components hook the equipment. During the upward clamping process, the grinding rod is driven to rotate axially to pre-grind the oxide layer of the contact part. After clamping, the grinding rod is in close contact with the ground equipment surface, which greatly reduces the impact of contact resistance on the test results. Personnel can stably clamp the test equipment joint on the work platform without climbing or using aerial work platforms, which greatly improves work efficiency and reduces safety risks. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0023] Figure 1 This is a schematic diagram of a clamping device for power equipment according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of a clamping device for power equipment according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of a clamping and polishing assembly according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of a clamping and polishing assembly according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of a linkage component in an embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 The diagram shown is a schematic representation of one embodiment of a clamping device for power equipment provided by the present invention. In this embodiment, it includes:

[0030] The device comprises a rod body 1, a circuit connection block 2, a clamping and grinding assembly, and a linkage assembly. A fixed seat 4 and a movable seat 5 are provided at the top of the rod body 1. The movable seat 5 is embedded within the fixed seat 4, and the movable seat 5 and the fixed seat 4 are slidably connected. An openable clamping and grinding assembly is provided on one side of the fixed seat 4, which is used to clamp the connector of the testing equipment. A linkage assembly is provided inside the movable seat 5, and the top end of the linkage assembly passes through the fixed seat 4 and connects to the clamping and grinding assembly. The linkage assembly is used to control the opening and closing action of the clamping and grinding assembly. The circuit connection block 2 is located in the middle of the rod body 1, and a test wire 3 is provided on the circuit connection block 2. The test wire 3 is used to measure the parameters of the testing equipment. It is understood that the entire device includes the rod body 1, the circuit connection block 2, the clamping and grinding assembly, and the linkage assembly. This invention comprises a multi-purpose double-bar clamp. The bottom of the clamp uses a directional bellows to adjust the clamp angle, adapting to various equipment joint angles. During the clamping process, the clamping and grinding assembly hooks onto the equipment. As the clamp is lifted upwards, the grinding rod 6 rotates axially to pre-grind the oxide layer on the contact area. After clamping, the grinding rod 6 is in close contact with the ground equipment surface, greatly reducing the impact of contact resistance on the test results. Using the multi-functional test clamp, personnel can stably clamp the test equipment joints on the work platform without climbing or using aerial work platforms, greatly improving work efficiency and reducing safety risks.

[0031] One embodiment, such as Figure 3 and Figure 4As shown, the clamping and polishing assembly includes at least a polishing rod 6 and a movable rod 7. The outer edge of the polishing rod 6 is provided with a polishing section, and the polishing rod 6 is rotatably connected to the fixed base 4 via a bearing. The movable rod 7 is vertically slidably connected to the fixed base 4. Multiple elastic telescopic rods 8 are provided on the fixed base 4. One end of each elastic telescopic rod 8 is fixedly connected to the fixed base 4, and the other end is connected to the movable rod 7. The elastic telescopic rod 8 is used to drive the movable rod 7 to move downwards. A first rope 9 and a second rope 10 are sleeved on the polishing rod 6. The second rope 10 is sequentially sleeved on the polishing rod 6 and the movable rod 7. The first rope 9 can pull the polishing rod 6 downwards to rotate, and the second rope 10 can pull the movable rod 7 downwards to move it upwards. Understandably, the clamping and polishing assembly includes a polishing rod 6 and a movable rod 7. The outer edge of the polishing rod 6 has a polishing profile, and the polishing rod 6 is rotatably connected to the fixed base 4 via a bearing. The movable rod 7 is vertically slidably connected to the fixed base 4. Two elastic telescopic rods 8 are provided on the fixed base 4. One end of the elastic telescopic rod 8 is fixed to the fixed base 4, and the other end is connected to the movable rod 7. The elastic telescopic rod 8 drives the movable rod 7 to move downward. A first rope 9 and a second rope 10 are wound around the polishing rod 6. The second rope 10 passes around the polishing rod 6 and is then looped onto the movable rod 7.

[0032] One embodiment, such as Figure 5As shown, the linkage assembly includes at least a transmission rod 11; a slider 12 fixedly connected to the end of the transmission rod 11, and a limiting hook 13 inside the slider 12; a pin 14 is provided on one side of the limiting hook 13, the pin 14 is embedded in a sliding groove provided on one side of the slider 12, and the limiting hook 13 is slidably connected to the slider 12 through the pin 14 and the sliding groove. A linkage member 15 is also provided on one side of the slider 12, the linkage member 15 is fixed to the inner wall of the fixed base 4, and the limiting hook 13 is connected to the linkage member 15 through the pin 14. The linkage member 15 connects the first rope 9 and the second rope 10. A rack 16 is provided on the fixed base 4, and the rack 16 is connected to the limiting hook 13 in a cooperative manner. When the movable seat 5 moves the slider 12 upward, the limiting hook 13 cannot move upward under the limitation of the rack 16. The slider 12 is provided with an inclined edge 17. When the movable seat 5 moves the slider 12 upward, the inclined edge 17 gradually presses against the protrusion 18 on the limiting hook 13, causing the limiting hook 13 to disengage from the rack 16. The first rope 9 pulls down to drive the grinding rod 6 to rotate, and the second rope 10 pulls down to drive the movable rod 7 to move upward. The linkage assembly includes a transmission rod 11, the end of which is fixedly connected to the slider 12. The limiting hook 13 is slidably connected to the connecting block. The limiting hook 13 is connected to the slider 12 through a pin 14, and is also connected to a linkage member 15 through the pin 14. The linkage member 15 is connected to the first rope 9 and the second rope 10. In addition, a rack 16 is fixedly connected to the fixed seat 4, and the rack 16 is engaged with the limiting hook 13.

[0033] In one embodiment, an elastic element is provided between the linkage 15 and the limiting hook 13. The elastic element is used to press the limiting hook 13 tightly against the rack 16 through elastic force. An elastic element is also provided on the linkage 15, with one end connected to the linkage 15 and the other end connected to the limiting hook 13. The elastic force presses the limiting hook 13 tightly against the rack 16. Since the limiting hook 13 and the rack 16 have a ratchet structure, under the action of the elastic element, the limiting hook 13 can only move downwards and cannot move upwards.

[0034] In a specific embodiment, during testing, the polishing rod 6 is placed in the right-angle position. After the polishing rod 6 is in place, the pull rod 1 is pulled down, causing the movable seat 5 to move downward relative to the fixed seat 4. The movable seat 5 drives the slider 12, the limit hook 13, and the linkage 15 to move downward through the transmission rod 11. During the downward movement, the linkage polishing rod 6 rotates to polish the right-angle position. During the polishing process, the movable rod 7 moves upward under the winding of the second rope 10 until the movable rod 7 and the polishing rod 6 clamp the right-angle position on the connector. At this time, the oxide layer is polished and the clamping operation is completed. One end of the polishing rod 6 is connected to the test wire 3 through an electrically rotating connector. The test wire 3 is connected to the circuit test block. The circuit test block is provided with a connection port 19. During the test, the testing instrument can test the electrical equipment through the connection port 19.

[0035] After the test is completed, the entire device needs to be removed. At this time, push the rod 1 upward. The rod 1 drives the slider 12 to move upward through the transmission rod 11 and unlocks the limit hook 13 through the inclined edge 17. When it continues to move upward, the grinding rod 6 and the movable rod 7 are reset. At this time, the device can be removed.

[0036] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0037] The clamping device for power equipment provided by this invention is adaptable to various equipment joint angles. During the clamping process, the clamping and grinding components hook the equipment. During the upward clamping process, the grinding rod is driven to rotate axially to pre-grind the oxide layer of the contact part. After clamping, the grinding rod is in close contact with the ground equipment surface, which greatly reduces the impact of contact resistance on the test results. Personnel can stably clamp the test equipment joint on the work platform without climbing or using aerial work platforms, which greatly improves work efficiency and reduces safety risks.

[0038] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A clamping device for power equipment, characterized in that, include: Rod body, circuit connection block, clamping and grinding assembly and linkage assembly; The top of the rod is provided with a fixed seat and a movable seat, the movable seat is embedded in the fixed seat, and the movable seat and the fixed seat are slidably connected; A clamping and grinding assembly is provided on one side of the fixed base. The clamping and grinding assembly is used to clamp the electrical equipment connector. The clamping and grinding assembly includes at least a grinding rod and a movable rod. The outer edge of the grinding rod is provided with a grinding part. The grinding rod and the fixed base are rotatably connected by a bearing. The movable rod and the fixed base are vertically slidably connected. A first rope and a second rope are sleeved on the grinding rod. The second rope is sequentially sleeved on the grinding rod and the movable rod. The first rope can pull the grinding rod downward to rotate it, and the second rope can pull the movable rod downward to move it upward. The movable seat is provided with a linkage component. The top end of the linkage component passes through the fixed seat and is connected to the clamping and grinding component. The linkage component is used to control the clamping and grinding component to perform opening and closing actions. The circuit connection block is provided in the middle of the rod body, and a test wire is provided on the circuit connection block. One end of the grinding rod is connected to the test wire through an electrically rotatable connector. The test wire is used to measure the parameters of the power equipment. The linkage component includes at least a transmission rod; a slider is fixedly connected to the end of the transmission rod, and a limiting hook is provided inside the slider; a pin is provided on one side of the limiting hook, the pin is embedded in a sliding groove provided on one side of the slider, and the limiting hook is slidably connected to the slider through the pin and the sliding groove. A linkage component is also provided on one side of the slider. The linkage component is fixed to the inner wall of the fixed base. The limiting hook is connected to the linkage component through the pin. The linkage component connects the first rope and the second rope. A rack is provided on the fixed base. The rack and the limiting hook are connected to each other. The pull rod body drives the movable seat to move downward relative to the fixed base. The movable seat drives the slider, the limiting hook and the linkage component to move downward through the transmission rod, or the push rod body drives the slider to move upward through the transmission rod. An inclined edge is provided on the slider. When the movable seat drives the slider to move upward, the inclined edge gradually squeezes the protrusion on the limiting hook, causing the limiting hook to disengage from the rack.

2. The clamping device as described in claim 1, characterized in that, An elastic element is provided between the linkage and the limiting hook, and the elastic element is used to make the limiting hook press tightly against the rack through elastic force.

3. The clamping device as described in claim 2, characterized in that, The fixed base is provided with multiple elastic telescopic rods. One end of each elastic telescopic rod is fixedly connected to the fixed base, and the other end is connected to the movable rod. The elastic telescopic rod is used to drive the movable rod to move downward.

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