Discharging rod

Abstract

The utility model provides a discharge rod. The discharge rod comprises a telescopic rod, a contact piece and a discharge detection device. The telescopic rod comprises a first rod body and a second rod body stretching out and drawing back in the first rod body, and an outer lock sleeve is arranged at the end, connected with the second rod body, of the first rod body. The contact piece is arranged at the tail end of the second rod body and comprises a shell, a hook-shaped body arranged on the outer side of the shell, an audible and visual alarm, an inner lock sleeve and a first switch, the audible and visual alarm, the inner lock sleeve and the first switch are arranged in the shell, the hook-shaped body is electrically connected with the audible and visual alarm, the inner lock sleeve is arranged on the periphery of the audible and visual alarm in a surrounding mode, and the first switch is arranged between the inner lock sleeve and the second rod body in a protruding mode; when the second rod body is retracted into the first rod body, the first switch is pressed by the first rod body, and the inner lock sleeve and the outer lock sleeve are matched, locked and fixed; the discharge detection device is arranged on the first rod body and is electrically connected with the contact piece and grounded. The discharge rod is simple in overall structure, rapid and easy to assemble and safe to use, the production cost and the maintenance cost are lower due to the modular design, and the discharge rod is easier to manufacture, store and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of discharge equipment, and particularly relates to a discharge rod. Background Art

[0002] In the power industry, at the end of testing, inspection or acceptance, electrical equipment and instruments will still have residual charge. At this time, a discharge rod is needed to fully discharge the remaining charge to ensure the safety of personnel and power equipment.

[0003] With the development of power technology, discharge rods are also constantly being upgraded. To improve the safety and efficiency of discharge rods, existing technologies are constantly adding equipment such as sound and light alarms, power condition displays, and multi-level discharge devices to ensure that personnel can complete their work efficiently while avoiding casualties caused by misjudgment.

[0004] However, to ensure the convenience and ease of storage of the discharge rods for each newly added device, existing designs integrate the required functional devices with the discharge rod. While this facilitates operation, the manufacturing cost of the discharge rod increases with the added functionality. Furthermore, the integrated design increases the difficulty of subsequent maintenance and replacement of the various functional devices. While a decentralized assembly structure could significantly reduce costs, it would require significant time for assembly and wiring before and after use, reducing operator efficiency. Both of these scenarios hinder the promotion and widespread adoption of the upgraded discharge rods. Summary of the Invention

[0005] To address the shortcomings of the prior art, the present invention provides a discharge rod comprising a telescopic rod, a contact member, and a discharge detection device. The contact member is disposed at the end of a second rod, which is retractably mounted on the first rod. The telescopic rod and the contact member can be stored and used together through the cooperation of an outer locking sleeve and an inner locking sleeve. The charge carried by the contact member is indirectly discharged to the ground via the discharge detection device disposed on the first rod. The discharge rod has a simple overall structure, is quick and easy to assemble, and is safe to use. The modular design of the telescopic rod, contact member, and discharge detection device reduces production and maintenance costs for each modular component, making it easier to manufacture, store, and maintain.

[0006] The technical effects to be achieved by the present invention are specifically achieved through the following technical aspects:

[0007] The utility model provides a discharge rod, comprising:

[0008] The telescopic rod comprises a first rod body and a second rod body, wherein the second rod body is telescopically disposed within the first rod body, and an outer locking sleeve is provided on one end of the first rod body connected to the second rod body;

[0009] a contact member detachably disposed at the end of the second rod, the contact member comprising a housing, a hook-shaped body, an audible and visual alarm, an inner locking sleeve, and a first switch, the audible and visual alarm, the inner locking sleeve, and the first switch being disposed within the housing, the hook-shaped body being disposed outside the housing and electrically connected to the audible and visual alarm, the inner locking sleeve being disposed around the periphery of the audible and visual alarm, and the first switch being protrudingly disposed between the inner locking sleeve and the second rod;

[0010] and a discharge detection device, provided on the first rod;

[0011] When the second rod is completely retracted into the first rod, the first switch is pressed by the first rod, and the inner locking sleeve cooperates with the outer locking sleeve and is locked and fixed; the discharge detection device is electrically connected to the contact piece, and the discharge detection device is grounded.

[0012] In some embodiments, the contact member includes a fixed block, which is detachably disposed in the second rod body, and the contact member is electrically connected to the second rod body through the fixed block; the second rod body is provided with an electrical connection hole at an end away from the contact member, and the electrical connection hole is electrically connected to the discharge detection device.

[0013] In some embodiments, the contact member further includes a spring, the spring is disposed in the housing, and the hook-shaped body is electrically connected to the sound and light alarm via the spring.

[0014] In some embodiments, the telescopic rod further includes a third rod body, and the third rod body is telescopically disposed between the first rod body and the second rod body.

[0015] In some embodiments, the first rod, the second rod, and the third rod are all made of a conductive metal tube, and the first rod, the second rod, and the third rod are respectively wrapped with insulating paint and thermoplastic polyurethane rubber film from the inside to the outside on the outer wall of the metal tube.

[0016] In some embodiments, the first rod is provided with a rubber sheath and a protective ring, the rubber sheath is provided at one end of the first rod away from the outer locking sleeve, and the protective ring is movably provided between the outer locking sleeve and the rubber sheath.

[0017] In some embodiments, the discharge detection device includes a quick fixing clip, and the discharge detection device is detachably mounted on the first rod through the quick fixing clip.

[0018] In some embodiments, the discharge detection device further includes a display portion, a second switch, an inlet hole, and an outlet hole. The display portion and the second switch are arranged on a side of the discharge detection device away from the quick fixing clamp. The inlet hole is electrically connected to the electrical connection hole, and the outlet hole is grounded.

[0019] In some embodiments, the first rod body is provided with a positioning portion, and the quick fixing clamp is provided with a clamping portion. When the quick fixing clamp is fixed to the first rod body, the clamping portion and the positioning portion are limited by shape engagement.

[0020] In some embodiments, the positioning portion is provided on a side of the protective ring facing the outer locking sleeve; the quick fixing clip can be fixed on the first rod body at any position in a direction close to or away from the protective ring.

[0021] In summary, the present invention has at least the following advantages:

[0022] 1. The discharge rod provided by this utility model has a contact member located at the end of the second rod body, which is stored and used together with the telescopic rod. When activated, the outer and inner locking sleeves open, automatically activating an audible and visual alarm. The discharge detection device is mounted on the first rod body, connecting and grounding the entire discharge and detection circuit via two wires. Compared to a structure with multiple decentralized functional components, the overall structure is simple, easy to assemble, safe to use, and less prone to omissions and misoperation.

[0023] 2. The discharge rod, telescopic rod, contact element, and discharge detection device provided by this utility model are modularized and can be produced and quality-controlled separately before being assembled and stored. Compared to an integrated structure, this reduces production costs and is easier to manufacture and store.

[0024] 3. The discharge rod provided by the present invention can quickly replace faulty module components during later use and maintenance, thereby reducing fault handling time. The replaced components can be repaired, restored or scrapped for recycling, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the working state of the discharge rod in Example 1 of the present utility model.

[0026] Figure 2 for Figure 1 Cross-sectional view at point A in the middle.

[0027] Figure 3 This is a cross-sectional view of the storage state of the discharge rod of Example 1 of the utility model

[0028] Figure 4 This is a cross-sectional view of the second rod body and the contact member when connected in Example 1 of the utility model.

[0029] Figure 5 This is an enlarged schematic cross-sectional view of the second rod body in Example 1 of the present utility model.

[0030] Figure 6 for Figure 1 Partial view at point B in the middle.

[0031] Figure 7 This is a partial axial view of the discharge rod with a quick fixing clamp in Example 1 of the present utility model.

[0032] Figure 8 This is an overall axial view of the discharge detection device in Example 2 of the present utility model.

[0033] Figure 9 This is a schematic diagram of the positions of the positioning part and the clamping part in Example 3 of the present utility model.

[0034] Figure 10 This is a schematic diagram of the working state of the discharge rod in Example 3 of the present utility model.

[0035] Figure 11 for Figure 10 A partial enlarged view of point C.

[0036] Markings in the figure:

[0037] 100-discharge rod;

[0038] 1- telescopic rod, 11- first rod body, 111- outer locking sleeve, 112- rubber sheath, 113- protective ring,

[0039] 114 - positioning portion, 12 - second rod, 121 - electrical connection hole, 13 - third rod;

[0040] 2-contact piece, 21-housing, 22-hook, 23-sound and light alarm, 231-warning light,

[0041] 232-check button, 24-internal locking sleeve, 25-first switch, 26-fixing block, 27-spring;

[0042] 3-discharge detection device, 31-quick fixing clamp, 311-clamping part, 32-display part, 33-second switch, 34-inlet hole, 35-outlet hole;

[0043] 4-Metal pipe;

[0044] 5-Insulating varnish;

[0045] 6-thermoplastic polyurethane rubber film;

[0046] 7-Wire. DETAILED DESCRIPTION

[0047] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0048] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0051] Example 1

[0052] Combined with reference Figure 1-Figure 7 This embodiment provides a discharge rod 100 for discharging a high voltage object to the ground. Figure 1 As shown, the discharge rod 100 includes a telescopic rod 1, a contact member 2, and a discharge detection device 3. The telescopic rod 1 includes a first rod 11 and a second rod 12 that is retractably mounted within the first rod 11. The discharge detection device 3 is mounted on the first rod 11, and the contact member 2 is removably mounted on the end of the second rod 12. The first rod 11 is designed to be gripped by hand. By telescoping the first and second rods 11, the contact member 2 can be extended away from the first rod 11, protecting the operator's safety. Furthermore, an external locking sleeve 111 is provided on the end of the first rod 11 where it connects to the second rod 12.

[0053] like Figure 2 As shown, the contact member 2 includes a housing 21, a hook-shaped body 22, an audible and visual alarm 23, an inner locking sleeve 24, and a first switch 25. The audible and visual alarm 23, the inner locking sleeve 24, and the first switch 25 are disposed within the housing 21. The hook-shaped body 22 is disposed outside the housing 21 and is electrically connected to the audible and visual alarm 23. The inner locking sleeve 24 surrounds the audible and visual alarm 23 in the direction toward the second rod 12. The first switch 25 protrudes between the inner locking sleeve 24 and the second rod 12. The hook-shaped body 22 passes through a through hole in the top of the housing 21 and is disposed outside the housing 21. Inside the housing 21, the hook-shaped body 22 is electrically connected to the audible and visual alarm 23. Without the need for wiring, the hook-shaped body 22 can generate an alarm when it touches a charged object, simplifying the structure of the discharge rod 100.

[0054] exist Figure 1-Figure 2 Based on Figure 3 When the second rod 12 is fully retracted into the first rod 11, the first switch 25, protruding between the inner locking sleeve 24 and the second rod 12, is pressed against the first rod 11. The inner locking sleeve 24 engages and locks the outer locking sleeve 111. The first switch 25 acts as the start / stop switch for the sound and light alarm 23. When the first switch 25 is pressed, the alarm circuit of the sound and light alarm 23 is disconnected, and the alarm enters a non-operating state. If the sound and light alarm 23 is powered, the internal battery and external circuit are disconnected, extending the service life of the sound and light alarm 23.

[0055] When stored, the inner locking sleeve 24 and outer locking sleeve 111 cooperate to secure and store the contact member 2 and telescopic rod 1 together. To activate the discharge rod 100, the inner locking sleeve 24 and outer locking sleeve 111 are unlocked, the second rod 12 is pulled out, and the first switch 25 is reset, connecting the circuit of the sound and light alarm 23. The operator can extend the discharge rod 100 and activate the sound and light alarm 23 without any additional operation. This prevents misjudgment of the detected charged object due to inadvertent activation of the sound and light alarm 23 during operation, thus improving the safety of the discharge rod 100.

[0056] In this embodiment, the primary function of the discharge detection device 3 is to discharge the conducted charge in a step-by-step manner and display voltage detection, thereby ensuring safe and reliable discharge of charged objects with varying charges. The discharge detection device 3 enables operators to monitor the discharge status of charged objects in real time, thereby improving the efficiency and accuracy of the discharge process. In other embodiments, the discharge detection device 3 may further include a current detection circuit, a charge characteristic detection circuit, or a discharge status recorder. The specific requirements are determined based on actual needs and are not further explained here.

[0057] Combine Figure 1-Figure 3When the discharge rod 100 is connected, the discharge detection device 3 is electrically connected to the contact 2, and the discharge detection device 3 is grounded. This means only two external wires 7 are required to connect the contact 2 to the discharge detection device 3 and the ground, respectively. The entire discharge rod 100 is assembled before use by pulling out the second rod 12 and connecting the two wires 7. Compared to existing multiple assembly solutions, this discharge rod 100 is quick and easy to assemble, making it less prone to misoperation. If a wire 7 is missed and the contact 2 becomes charged, or if both the contact 2 and the discharge detection device 3 become charged, the hook 22 can simply be removed from the charged object and allowed to touch the ground, effectively ensuring operator safety. During use, the discharge detection device 3 is activated and the hook 22 is hooked onto the charged object to initiate discharge. This simple procedure is convenient to use, significantly reducing the risk of accidents caused by misoperation.

[0058] Compared to the existing "integrated" structure, although an additional wire 7 is required for operation, during the manufacturing process, since the telescopic rod 1, contact member 2, and discharge detection device 3 are all formed into separate modules, each module can be produced by a specialized manufacturer during manufacturing, ensuring quality while significantly reducing production costs. During subsequent calibration, maintenance, and repair, faulty modules can be quickly replaced, reducing troubleshooting time. Faulty module components can be returned to the specialized manufacturer for repair, restoration, or scrapping and recycling. As a result, maintenance costs are significantly reduced.

[0059] like Figure 4 As shown, the contact member 2 includes a detachable fixing block 26 disposed in the second rod body 12, and the contact member 2 is electrically connected to the second rod body 12 through the fixing block 26. The second rod body 12 is provided with an electrical connection hole 121 at one end away from the contact member 2, and the electrical connection hole 121 is electrically connected to the discharge detection device 3. In this embodiment, the fixing block 26 is a threaded structure made of conductive metal and is disposed at the bottom of the contact member 2. The second rod body 12 is also a metal member, so that the contact member 2 can be electrically connected to the second rod body 12 through the fixing block 26. And through the threaded structure, the fixing block 26 can be easily detached from the second rod body 12, facilitating the assembly and disassembly of the contact member 2 and the second rod body 12. In other embodiments, the fixing block 26 can also be connected and fixed to the second rod body 12 by means of a snap-fit ​​structure or the like.

[0060] The second rod 12 has an electrical connection hole 121 at the end away from the contact 2. This allows the second rod 12 to function as a section of wire 7 when the discharge detection device 3 is electrically connected to the contact 2, thereby shortening the actual length of the wire 7 and reducing its weight during operation. In other embodiments, the second rod 12 is electrically connected to the interior of the first rod 11, and another electrical connection hole 121 is provided on the first rod 11, thereby shortening the wire 7 electrically connecting the contact 2 and the discharge detection device 3. However, the additional internal structure of the first and second rods 11, 12, will increase the corresponding cost.

[0061] When the discharge rod 100 is in operation, the hook 22 contacts a charged object, and the charge passes through the sound and light alarm 23, triggering an audible and visual alarm. The sound and light alarm 23 is electrically connected to the fixed block 26 within the contact member 2. The charge passes through the fixed block 26, then through the second rod 12 and the wire 7 to the discharge detection device 3. The discharge detection device 3 detects and displays the charge, while also directing the charge into a stepped discharge circuit and finally conducting it to ground, completing the entire discharge process. The operator determines whether the discharge is complete using the discharge detection device 3, thereby improving work efficiency.

[0062] Specifically, the contact member 2 further includes a spring 27 disposed within the housing 21, and the hook 22 is electrically connected to the sound and light alarm 23 via the spring 27. The spring 27 is disposed between the hook 22 and the sound and light alarm 23. When the hook 22 quickly touches a hard, charged object, the spring 27 absorbs energy and deforms, thereby buffering the force applied to the sound and light alarm 23. This prevents the sound and light alarm 23 from structural damage due to large sudden force, and also prevents the hook 22 from long-term rigid contact with the sound and light alarm 23, which could cause mechanical fatigue on the housing of the sound and light alarm 23 and shorten its service life.

[0063] Continue reading Figure 3 In this embodiment, the telescopic rod 1 further includes a third rod 13, which is telescopically disposed between the first rod 11 and the second rod 12. The presence of the third rod 13 further extends the distance between the contact member 2 and the first rod 11. For charged objects at height or with high voltage, the contact member 2 maintains a greater distance from the first rod 11, ensuring a safe distance for the operator and preventing electric shock from potential differences in the electric field.

[0064] Specifically, the third rod 13 can be configured as one or more sections. In this embodiment, the third rod 13 is configured with three sections, which are sequentially telescopically nested between the first rod 11 and the second rod 12. The multi-section third rod 13 facilitates the integration and storage of longer telescopic rods 1. The desired length of the telescopic rod 1 can be controlled by the number of sections of the third rod 13 that extend.

[0065] In this embodiment, the first rod 11, the second rod 12, and the third rod 13 are all made of a conductive metal tube 4, and the first rod 11, the second rod 12, and the third rod 13 are respectively wrapped with an insulating paint 5 and a thermoplastic polyurethane rubber film 6 on the outer wall of the metal tube 4 from the inside to the outside. Since the first rod 11, the second rod 12, and the third rod 13 have the same structure, only the second rod 11 will be described here. Figure 5 As shown, the interior of the second rod body 12 is constructed of a metal tube 4, ensuring the overall strength and rigidity of the second rod body 12 meet operational requirements. The surface of the metal tube 4 is coated with an insulating varnish 5, effectively insulating the rod from the outside and preventing potential safety hazards such as electric shock, short circuits, and leakage during discharge operation. Considering that the discharge rod 100 may come into contact with sharp objects before and after use, causing the insulating varnish 5 to fall off and increase the risk of electric shock, a thermoplastic polyurethane rubber film 6 is applied to the outer layer of the insulating varnish 5. The thermoplastic polyurethane rubber film 6 has a certain degree of scratch resistance, ensuring that the insulating varnish 5 remains intact even with minor scratches. However, with more severe scratches, the thermoplastic polyurethane rubber film 6 will exhibit obvious white spots and flare-out, making it easy to visually determine whether the telescopic rod 1 is damaged. This allows operators to easily determine whether the telescopic rod 1 is in a safe state, further preventing electric shock accidents. In other embodiments, the rod body may also be protected with a high-temperature resistant fluororubber film or other corrosion-resistant rubber film. However, due to the wide variety of rubber types and applications, these details are not discussed here.

[0066] Furthermore, the first rod 11 is provided with a rubber sheath 112 and a protective ring 113. The rubber sheath 112 is provided at one end of the first rod 11 away from the outer locking sleeve 111. The protective ring 113 is movably provided between the outer locking sleeve 111 and the rubber sheath 112. Figure 1 Based on Figure 6 A rubber sheath 112 is wrapped around the first rod 11, and an anti-slip pattern is provided on the outer circumference of the rubber sheath 112. The operator holds the rubber sheath 112 with one hand, and the anti-slip pattern effectively prevents the hand from slipping and facilitates turning the first rod 11. The other hand holds the first rod 11 between the rubber sheath 112 and the protective ring 113. Holding with both hands ensures more stable operation. The protective ring 113 is provided to buffer accidental high-voltage arcs and reduce harm to the human body.

[0067] Furthermore, the discharge detection device 3 includes a quick fixing clamp 31 , and the discharge detection device 3 is detachably mounted on the first rod 11 via the quick fixing clamp 31 . Figure 7As shown, a quick-fix clip 31 is positioned on the side of the discharge detection device 3 near the first rod 11. By clamping and releasing the quick-fix clip 31, the discharge detection device 3 and the first rod 11 can be quickly installed and removed. During storage, the discharge detection device 3 can be stored and protected separately from the telescopic rod 1, effectively reducing the difficulty of storage and further reducing production costs and assembly difficulty.

[0068] In summary, the discharge rod provided in this embodiment has a contact member located at the end of the second rod body, which is stored and used together with the telescopic rod. Opening the outer and inner locking sleeves automatically activates the audible and visual alarms. Two wires 7 complete the connection and grounding of the entire discharge and detection circuit. Compared to designs with multiple decentralized functional components, this discharge rod offers a simple overall structure, quick and easy assembly, safe use, and a low risk of leakage or misoperation.

[0069] Furthermore, because the telescopic rod, contact element, and discharge detection device are modularized, they can be manufactured and quality-controlled separately before being assembled and stored. Compared to a one-piece design, this reduces production costs and makes manufacturing and storage easier. During subsequent maintenance, faulty module components can be quickly replaced, reducing troubleshooting time. Replaced components can then be returned for repair, restoration, or scrap recycling, reducing maintenance costs.

[0070] Example 2

[0071] exist Figure 1-Figure 7 Based on Figure 8 The discharge rod 100 of this embodiment has the same structure as that of the first embodiment. Compared to the first embodiment, the discharge detection device 3 of this embodiment further includes a display 32, a second switch 33, an inlet 34, and an outlet 35. The display 32 and the second switch 33 are located on the side of the discharge detection device 3 facing away from the quick fixing clamp 31. The inlet 34 is electrically connected to the electrical connection hole 121, and the outlet 35 is grounded.

[0072] The display 32 and second switch 33 are oriented for easy viewing and use by the operator. The inlet and outlet holes 34 and 35 unify the input and output terminals of the discharge detection device 3, simplifying wiring. To facilitate wiring, the inlet hole 34 is typically located on the side of the discharge detection device 3 facing the contact 2. The outlet hole 35 needs to be located a certain distance from the inlet hole 34 and is therefore located on the side opposite the inlet hole 34. In this embodiment, the outlet hole 35 is located on the side opposite the inlet hole 34.

[0073] By adopting the discharge detection device 3 in this embodiment, the wiring, use and storage processes for operators will be simpler and more intuitive, effectively reducing the probability of human error during the work process.

[0074] Example 3

[0075] exist Figure 1-Figure 7 Based on Figure 9-11 This embodiment makes adjustments based on the structure of the discharge rod 100 in the first embodiment.

[0076] Specifically, considering different purposes, the discharge detection device 3 may be equipped with multiple circuit modules, which increases the volume and weight of the discharge detection device 3 and may cause the quick fixing clip 31 to slide circumferentially. Or, during the discharge operation, the discharge rod 100 may swing too fast, causing the quick fixing clip 31 to slide circumferentially. Figure 9 As shown, in this embodiment, the first rod 11 is provided with a positioning portion 114, and the quick-fix clamp 31 is provided with a clamping portion 311. When the quick-fix clamp 31 is fixed to the first rod 11, the clamping portion 311 and the positioning portion 114 are locked in position by shape. In this embodiment, the locking shape is a quadrilateral, forming a barrier in the circumferential direction of the first rod 11. After the locking and limiting is completed, the quick-fix clamp 31 will no longer slide, ensuring that the position of the discharge detection device 3 is stable and reliable. In some embodiments, the locking shape can be triangular or circular. During production, the positioning portion 114 and the clamping portion 311 can be implemented by welding metal blocks or gluing rubber parts.

[0077] Furthermore, the positioning portion 114 is provided on the side of the protective ring 113 facing the outer locking sleeve 111, and the quick fixing clip 31 can be fixed on the first rod 11 at any position close to or away from the protective ring 113. Figure 9 Based on Figure 10 The discharge detection device 3 can be adjusted based on the operator's actual position. When the second rod 12 is farther away from the first rod 11, the protective ring 113 can be moved away from the rubber sheath 112, and the discharge detection device 3 changes position accordingly. This ensures that the operator is holding the device with minimal effort, reducing operator fatigue.

[0078] In addition, the sound and light alarm 23 of the present embodiment has an internal power supply. Figure 11 As shown, a warning light 231 of the sound and light alarm 23 is located on the periphery of the contact 2. A check button 232 is also located near the warning light 231. By pressing the check button 232, the warning light 231 changes color or shape based on the battery level, and an alarm tone is simultaneously activated. This reduces the risk of the discharge process being affected by insufficient battery during subsequent use and prevents misjudgment of the results.

[0079] The above content is merely an example and illustration of the structure of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and these obvious alternative forms are all within the scope of protection of the present invention.

Claims

1. A discharge rod, characterized in that: include: A telescopic rod (1) comprising a first rod body (11) and a second rod body (12), wherein the second rod body (12) is telescopically arranged in the first rod body (11), and an outer locking sleeve (111) is provided on one end of the first rod body (11) connected to the second rod body (12); A contact member (2) is detachably arranged at the end of the second rod (12), the contact member (2) comprising a housing (21), a hook-shaped body (22), an audible and visual alarm (23), an inner locking sleeve (24) and a first switch (25), wherein the audible and visual alarm (23), the inner locking sleeve (24) and the first switch (25) are arranged in the housing (21), the hook-shaped body (22) is arranged outside the housing (21) and is electrically connected to the audible and visual alarm (23), the inner locking sleeve (24) is arranged around the outer periphery of the audible and visual alarm (23), and the first switch (25) is protruded between the inner locking sleeve (24) and the second rod (12); and a discharge detection device (3) provided on the first rod (11); When the second rod (12) is completely retracted into the interior of the first rod (11), the first switch (25) is pressed by the first rod (11), and the inner locking sleeve (24) cooperates with and is locked and fixed to the outer locking sleeve (111); the discharge detection device (3) is electrically connected to the contact member (2), and the discharge detection device (3) is grounded.

2. The discharge rod according to claim 1, characterized in that The contact member (2) includes a fixing block (26), the fixing block (26) is detachably arranged in the second rod body (12), and the contact member (2) is electrically connected to the second rod body (12) via the fixing block (26); the second rod body (12) is provided with an electrical connection hole (121) at one end away from the contact member (2), and the electrical connection hole (121) is electrically connected to the discharge detection device (3).

3. The discharge rod according to claim 2, characterized in that: The contact member (2) further comprises a spring (27), wherein the spring (27) is disposed in the housing (21), and the hook-shaped body (22) is electrically connected to the sound and light alarm (23) via the spring (27).

4. The discharge rod according to claim 3, characterized in that The telescopic rod (1) further comprises a third rod body (13), and the third rod body (13) is telescopically arranged between the first rod body (11) and the second rod body (12).

5. The discharge rod according to claim 4, characterized in that: The first rod (11), the second rod (12) and the third rod (13) are all made of a conductive metal tube (4), and the first rod (11), the second rod (12) and the third rod (13) are respectively wrapped with insulating paint (5) and thermoplastic polyurethane rubber film (6) on the outer wall of the metal tube (4) from the inside to the outside.

6. The discharge rod according to claim 5, characterized in that: The first rod (11) is provided with a rubber sheath (112) and a protective ring (113); the rubber sheath (112) is provided at an end of the first rod (11) away from the outer locking sleeve (111); and the protective ring (113) is movably provided between the outer locking sleeve (111) and the rubber sheath (112).

7. The discharge rod according to claim 6, characterized in that The discharge detection device (3) comprises a quick fixing clamp (31), and the discharge detection device (3) is detachably arranged on the first rod body (11) via the quick fixing clamp (31).

8. The discharge rod according to claim 7, characterized in that: The discharge detection device (3) further comprises a display portion (32), a second switch (33), an inlet hole (34) and an outlet hole (35); the display portion (32) and the second switch (33) are arranged on a side of the discharge detection device (3) away from the quick fixing clamp (31); the inlet hole (34) is electrically connected to the electrical connection hole (121); and the outlet hole (35) is grounded.

9. The discharge rod according to claim 7, characterized in that: The first rod body (11) is provided with a positioning portion (114), and the quick fixing clamp (31) is provided with a clamping portion (311). When the quick fixing clamp (31) is fixed to the first rod body (11), the clamping portion (311) and the positioning portion (114) are limited by shape engagement.

10. The discharge rod according to claim 9, characterized in that: The positioning portion (114) is provided on a side of the protective ring (113) facing the outer locking sleeve (111); the quick fixing clamp (31) can be fixed on the first rod (11) at any position in a direction close to or away from the protective ring (113).

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