Grounding discharge device
By designing a grounding discharge device, a sliding groove and spring structure are used to ensure close contact between the discharge needle and the electrical equipment, thus solving the problem of incomplete discharge and improving discharge efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG WEIQIAO LIGHTWEIGHT MATERIALS CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-12
AI Technical Summary
Poor contact between the discharge needle and electrical equipment in existing discharge devices leads to incomplete discharge.
A grounding discharge device was designed, comprising a discharge rod, a discharge resistor, a grounding wire, a discharge needle, and a spring structure. The discharge needle is made in close contact with the electrical equipment through the cooperation of the groove and the spring, and the contact effect is enhanced by the use of a hook and a second spring.
This achieves stable and complete contact between the discharge needle and the electrical equipment, improving discharge efficiency and safety.
Smart Images
Figure CN224233072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrical equipment testing devices, specifically a grounding discharge device. Background Technology
[0002] After testing the insulation of high-voltage electrical equipment, a grounding discharge device is required for discharge. During discharge, the discharge needle on the top of the discharge device needs to be in contact with the electrical equipment. However, existing discharge devices are prone to poor contact between the discharge needle and the electrical equipment, resulting in incomplete discharge. Utility Model Content
[0003] The main purpose of this utility model is to provide a grounding discharge device to solve the problem in the prior art where the discharge needle at the top of the discharge device is prone to poor contact with the electrical equipment during discharge, resulting in incomplete discharge.
[0004] To achieve the above objectives, this utility model provides a grounding discharge device, including a discharge rod, a discharge resistor fixedly connected inside the discharge rod, and an insulated handle at the bottom of the discharge rod; one end of the discharge resistor is connected to a grounding wire, and the other end of the grounding wire is fixedly connected to a grounding clamp; a groove is provided at the top of the discharge rod, and a conductive discharge needle is slidably connected in the groove, with the bottom end of the discharge needle connected to the discharge resistor via a connecting wire; a first spring is provided in the groove to push the discharge needle upward.
[0005] Furthermore, the connecting wire is a helical wire.
[0006] Furthermore, the discharge needle is fixedly connected to a slider; the top and bottom of the chute are fixedly connected to retaining rings; and the first spring is located between the slider and the bottom retaining ring.
[0007] Furthermore, the top of the discharge needle is provided with a hook; a second spring is provided between the top retaining ring and the slider.
[0008] Furthermore, a retaining ring is fixedly connected to the top of the grip.
[0009] This invention features a sliding groove in which a discharge needle is slidably connected, and a first spring is provided. When the discharge needle comes into contact with the electrical equipment, the first spring provides elastic force to push the discharge needle upward, thus improving the contact between the discharge needle and the electrical equipment.
[0010] This invention, by setting a hook, allows the straight discharge needle to contact the electrical equipment when it is difficult to do so; by setting a second spring, the discharge needle can be pushed back to the bottom when the inside of the hook contacts the electrical equipment, so that the inside of the hook and the electrical equipment can make better contact. Attached Figure Description
[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.
[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the grounding discharge device;
[0013] Figure 2 This is a schematic diagram of the structure at the first spring in Example 1;
[0014] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the grounding discharge device;
[0015] In the diagram: 1. Discharge rod; 101. Slide groove; 102. Retaining ring; 103. Handle; 2. Discharge resistor; 3. Discharge needle; 301. Hook; 4. Wire; 5. First spring; 6. Grounding wire; 7. Grounding clamp; 8. Sliding block; 9. Second spring; 10. Protective ring. Detailed Implementation
[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0017] Example 1 of grounding discharge device
[0018] like Figure 1 and Figure 2 As shown, a grounding discharge device includes an epoxy resin insulated discharge rod 1, a discharge resistor 2 fixedly connected inside the discharge rod 1, and an insulated handle 103 at the bottom of the discharge rod 1. One end of a grounding wire 6 is connected to the bottom of the discharge resistor 2, and the other end of the grounding wire 6 is fixedly connected to a grounding clamp 7. The discharge rod 1 has a socket, and the grounding wire 6 is inserted into the socket. The top of the discharge rod 1 has a groove 101, and a conductive discharge needle 3 is slidably connected in the groove 101. The bottom end of the discharge needle 3 is connected to the discharge resistor 2 through a connecting wire 4. The discharge resistor 2 is used to consume electrical energy, thereby reducing the voltage and ensuring personal safety. When the voltage is high and the resistor cannot completely consume the energy, it flows to the ground through the grounding wire 6. A first spring 5 is provided in the groove 101 to push the discharge needle 3 to the top.
[0019] Connecting wire 4 is a spiral wire, which can prevent the wire from tangling.
[0020] A slider 8 is fixedly connected to the middle of the discharge needle 3; a retaining ring 102 is fixedly connected to the top and bottom of the slide groove 101; and a first spring 5 is located between the slider 8 and the retaining ring 102 at the bottom.
[0021] An insulating guard ring 10 is fixedly connected to the top of the grip 103; the guard ring is used to prevent the hand from slipping out of the area of the grip 103.
[0022] Example 2 of grounding discharge device
[0023] like Figure 3 As shown, the only difference between embodiment 2 of the grounding discharge device and embodiment 1 of the grounding discharge device is that the top of the discharge needle 3 is provided with a hook 301; and a second spring 9 is provided between the top retaining ring 102 and the slider 8.
[0024] In the above-described embodiment of the grounding discharge device, during use, the grounding clamp 7 is first connected to the grounding terminal, and then the discharge needle 3 is used to contact the electrical equipment to discharge. When using embodiment 1 of the grounding discharge device, when the discharge needle 3 contacts the electrical equipment, the discharge needle 3 compresses the first spring 5, and the first spring 5 gives the discharge needle 3 an outward pushing force, so that the discharge needle 3 is pressed tightly against the electrical equipment. When using embodiment 2 of the grounding discharge device, when the outer side of the hook 301 of the discharge needle 3 contacts the electrical equipment, the discharge needle 3 compresses the first spring 5, and the first spring 5 gives the discharge needle 3 an outward pushing force, so that the outer side of the hook 301 is pressed tightly against the electrical equipment. When the inner side of the hook 301 of the discharge needle 3 contacts the electrical equipment, the discharge needle 3 compresses the second spring 9, and the second spring 9 gives the discharge needle 3 an inward pulling force, so that the inner side of the hook 301 is pressed tightly against the electrical equipment.
[0025] The above embodiment features a sliding groove in which the discharge needle is slidably connected, and a first spring is provided. When the discharge needle comes into contact with the electrical equipment, the first spring provides elastic force to push the discharge needle upward, thus improving the contact between the discharge needle and the electrical equipment.
[0026] The above embodiments, by setting a hook, enable the hook to contact the electrical equipment when a straight discharge needle is difficult to contact the electrical equipment; by setting a second spring, when the inside of the hook contacts the electrical equipment, the discharge needle can be pushed back to the bottom, so that the inside of the hook and the electrical equipment can make better contact.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A grounding discharge device, comprising a discharge rod (1), wherein a discharge resistor (2) is fixedly connected inside the discharge rod (1), and the bottom of the discharge rod (1) is an insulated handle (103); one end of a grounding wire (6) is connected to the discharge resistor (2), and the other end of the grounding wire (6) is fixedly connected to a grounding clamp (7); characterized in that, The top of the discharge rod (1) is provided with a groove (101), and a conductive discharge needle (3) is slidably connected in the groove (101). The bottom end of the discharge needle (3) is connected to the discharge resistor (2) through a connecting wire (4). A first spring (5) is provided in the groove (101) to push the discharge needle (3) out to the top.
2. The grounding discharge device as described in claim 1, characterized in that, The connecting wire (4) is a spiral wire.
3. The grounding discharge device as described in claim 1, characterized in that, The discharge needle (3) is fixedly connected to a slider (8); the top and bottom of the groove (101) are fixedly connected to retaining rings (102); the first spring (5) is located between the slider (8) and the bottom retaining ring (102).
4. The grounding discharge device as described in claim 3, characterized in that, The top of the discharge needle (3) is provided with a hook (301); a second spring (9) is provided between the top retaining ring (102) and the slider (8).
5. The grounding discharge device as described in claim 1, characterized in that, A retaining ring (10) is fixedly connected to the top of the grip (103).