Casing end screen signal acquisition device

Abstract

The present application relates to the technical field of casing end screen maintenance equipment, and in particular to a casing end screen signal acquisition device, comprising an installation component, an adjustment component and a conductive sheet group which are fixedly connected in sequence and used to be sleeved on the outside of the casing end screen connector; the installation component is used to be fixedly connected to the casing end screen; the conductive sheet group comprises a plurality of conductive sheets, a compression channel is formed between the plurality of conductive sheets, the two ends of the compression channel are respectively provided with a casing end screen connector and a grounding wire, and a compression component is provided outside the conductive sheet group; the adjustment component and the compression component of the casing end screen signal acquisition device of the present application will not exert axial force on the end screen connector, and at the same time exert force evenly in the radial direction, are suitable for a variety of wire diameters, and are easy to replace.

Description

Technical Field

[0001] The present application relates to the technical field of casing end screen maintenance equipment, and in particular to a casing end screen signal acquisition device. Background Art

[0002] The statements in this section merely provide background technical information related to this application and do not necessarily constitute prior art.

[0003] The transformer bushing end screen refers to the screen at the end of the bushing capacitor core. It must be grounded during normal operation to ensure the electrical safety of the bushing. Additionally, the bushing end screen can be used as a measurement terminal to measure the bushing's insulation resistance, dielectric loss, and capacitance. In the prior art, if online monitoring of the transformer bushing end screen is required, the bushing end screen is typically connected to a bushing end screen adapter. The adapter can extract the leakage current signal from the transformer bushing end screen for measurement and analysis. The adapter also has a grounding protection function to ensure that the bushing end screen is always reliably grounded during operation. This grounding protection function can effectively prevent equipment damage caused by an open circuit or poor grounding of the end screen. However, not all transformer bushing terminal screens require real-time online monitoring. First, according to the "Condition-Based Maintenance Test Procedures for Power Transmission and Transformation Equipment," the preventive testing cycle for transformer bushings is 2-3 years for voltage levels of 220 kV and 110 kV and below. During this test cycle, regular preventive testing can be performed to measure parameters such as insulation resistance, dielectric loss, and capacitance to assess the insulation condition of the bushing. If the bushing test results meet standard requirements and no abnormalities are found during the test cycle, real-time online monitoring can be omitted during the operation period between tests. Second, if routine inspections and infrared temperature measurement reveal no abnormalities during operation (e.g., the terminal screen is well grounded, there is no overheating or discharge signs), and the equipment has been in operation for a short time and is of reliable quality), then real-time online monitoring can be temporarily omitted. However, regular inspections and necessary tests are still required to ensure continued safe operation. Third, real-time online monitoring systems require a certain investment cost, so for economic reasons, only periodic monitoring is sufficient.

[0004] The installation and use of bushing end screen adapters and online monitoring technology for bushing end screens in the existing technology are relatively mature, but they are all applicable to real-time monitoring situations. For transformer bushing end screens that only need to be inspected periodically, it is only necessary to ensure that they are reliably grounded and can be easily disassembled and assembled when online monitoring is required. If a bushing end screen adapter is used, the cost is relatively high and it is also difficult to disassemble and assemble. At the same time, when connecting the bushing end screen connector, the root position of the connection between the bushing end screen connector and the bushing end screen is relatively fragile. If it is subjected to excessive axial pressure, tension or bending force, it is easy to break, thereby affecting its use.

[0005] In view of this, it is necessary to provide a bushing end screen signal acquisition device with reliable grounding, good economy and easy disassembly and assembly to solve the above technical problems. Summary of the Invention

[0006] Based on this, in order to solve the above technical problems, the present application provides a casing end screen signal acquisition device.

[0007] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0008] This application proposes a casing end screen signal acquisition device, comprising:

[0009] The mounting assembly, adjustment assembly and conductive sheet assembly are sequentially fixed and connected to be sleeved on the outer side of the bushing end screen connector;

[0010] The installation component is used to be fixedly connected to the casing end screen;

[0011] The conductive sheet group includes a plurality of conductive sheets, a compression channel is formed between the plurality of conductive sheets, and the two ends of the compression channel are respectively provided with a bushing end screen connector and a grounding wire;

[0012] A pressing assembly is provided outside the conductive sheet group; the pressing assembly is used to provide radial pressure to each conductive sheet outside the conductive sheet group to press the bushing end screen connector and the grounding wire.

[0013] Preferably,

[0014] The adjustment assembly includes an adjustment cylinder with one end fixedly connected to the mounting assembly; an adjustment disk is provided for rotation in the adjustment cylinder, and the adjustment disk is coaxially arranged with the adjustment cylinder;

[0015] A through hole is opened in the middle of the adjusting disk, and large bevel gears are arranged in a ring around the bottom of the adjusting disk; an Archimedean spiral groove is provided on the top plane of the adjusting disk;

[0016] A rotating mechanism is provided below the adjusting disk, and a small bevel gear is provided on the rotating mechanism to engage with the large bevel gear; the rotating mechanism is rotatably connected to the adjusting cylinder;

[0017] A plurality of adjustment sliders are provided above the adjustment disk, and teeth are provided at the bottom of the adjustment sliders to match the Archimedean spiral grooves;

[0018] The adjusting slide block is slidably connected to the adjusting cylinder through a sliding hole provided on the adjusting cylinder;

[0019] The upper portion of the end portion of each adjusting sliding block close to the through hole in the middle of the adjusting disk is fixedly connected to one end of a conductive sheet.

[0020] Preferably,

[0021] The rotating mechanism includes a rotating shaft, one end of which is fixed with a small bevel gear, and the other end of which is fixed with a rotating part; the rotating part and the adjusting cylinder form a rotating pair;

[0022] A tightening opening is fixedly provided at the center of the end portion of the rotating part; and a tightening hole matching the tightening opening is opened on the adjusting cylinder.

[0023] Preferably,

[0024] The pressing assembly includes a middle guide cylinder, and an upper locking thread cylinder and a lower locking thread cylinder are fixed on both sides of the middle guide cylinder;

[0025] An upper pressing piece group is fixed above the upper locking threaded barrel; a lower pressing piece group is fixed below the lower locking threaded barrel;

[0026] The upper locking threaded barrel is externally threadedly connected to an upper locking piece; the lower locking threaded barrel is externally threadedly connected to a lower locking piece;

[0027] The upper locking piece and the lower locking piece both include a locking sleeve and a locking opening.

[0028] Preferably,

[0029] A plurality of guide members are fixedly provided on the outside of the lower locking member; an outer guide cylinder is provided on the outside of the guide member; the upper portion of the outer guide cylinder is fixedly connected to the lower portion of the middle guide cylinder via an annular connecting plate;

[0030] An outer cylinder is fixedly provided above the adjustment assembly, and a guide groove cooperating with the guide member is provided on the top of the outer cylinder;

[0031] The outer cylinder and the outer guide cylinder form a cylindrical pair.

[0032] Preferably,

[0033] A sliding sealing ring is provided between the bottom of the outer guide cylinder and the outer cylinder.

[0034] Preferably,

[0035] The lower pressing plate group includes a plurality of lower pressing plates arranged at even intervals;

[0036] The upper pressing plate group includes a plurality of upper pressing plates arranged evenly spaced apart;

[0037] The lower pressing plate and the upper pressing plate are both metal springs;

[0038] The conductive sheet is made of copper.

[0039] Preferably,

[0040] The installation assembly includes a fixing seat, the interior of the fixing seat is a cylindrical structure, and the interior of the fixing seat is provided with an internal installation thread that cooperates with the end screen connecting seat.

[0041] Preferably,

[0042] The fixing seat includes a mounting base at the bottom and an outer mounting portion at the top; the outer portion of the outer mounting portion is threadedly connected to the outer protective tube.

[0043] Preferably,

[0044] The outer protective tube is fixedly connected to the protective hose.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] 1. When the casing end screen connector is clamped by using the adjustment assembly, the casing end screen connector located in the compression channel of the conductive sheet group never receives axial pressure, and there is no axial tension or pressure on the casing end screen connector; at the same time, when the adjustment disk rotates, the Archimedean spiral groove rotates to drive the adjustment slider to achieve synchronous radial movement, reducing the radial bending force on the casing end screen joint, preventing the problem of fracture of the casing end screen connector root and the casing end screen connection due to the axial force, and improving reliability.

[0047] 2. When the compression assembly is used for compression, the casing end screen connector located in the compression channel never receives axial pressure, and there is no axial tension or pressure on the casing end screen connector, thus preventing the problem of the casing end screen connector root and the casing end screen connection being broken due to the axial force.

[0048] 3. When online monitoring is required, it is convenient to change the line.

[0049] 4. The design of the conductive sheet group makes the bushing end screen signal acquisition device of the present application applicable to grounding wires and bushing end screen connectors of different wire diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0051] Figure 1 This is a schematic diagram of the overall structure of a casing end screen signal acquisition device of the present application in one embodiment.

[0052] Figure 2 for Figure 1 A schematic diagram of the internal cross-sectional structure of a casing end screen signal acquisition device in the present application,

[0053] Figure 3 for Figure 2 A partial enlarged view of the middle area.

[0054] Figure 4 This is a schematic diagram of the overall structure of a compression assembly of a casing end screen signal acquisition device of this application.

[0055] Figure 5 for Figure 4 Schematic diagram of the overall structure of the middle clamping assembly after removing the outer guide cylinder.

[0056] Figure 6 for Figure 4 Schematic diagram of the transverse cross-section structure of the middle clamping component,

[0057] Figure 7 This is a schematic diagram of the overall structure of a conductive sheet and an adjustment component of a casing end screen signal acquisition device of the present application in one embodiment.

[0058] Figure 8 for Figure 7 Schematic diagram of the connection structure between the conductive sheet and the adjustment slider,

[0059] Figure 9 for Figure 7 Another angle diagram of the internal structure of the adjustment component.

[0060] Figure 10 This is a schematic diagram showing the positional relationship between the adjustment disk, the rotating mechanism, and the adjustment slider inside the adjustment assembly.

[0061] Figure 11 for Figure 10 Schematic diagram of the overall structure from another angle,

[0062] Figure 12 This is a schematic diagram of the overall structure of a casing end screen signal acquisition device of the present application in another embodiment;

[0063] Figure 13 This is a schematic diagram of the casing end screen connection seat structure.

[0064] In the picture:

[0065] 1. Mounting assembly, 10. Internal mounting thread, 11. Mounting base, 12. External mounting part,

[0066] 2. Adjustment assembly, 20. Adjustment cylinder, 21. Adjustment slider, 22. Elastic mouth,

[0067] 23. Adjusting plate, 230. Large bevel gear, 231. Archimedean spiral groove,

[0068] 24. Rotating mechanism, 240. Small bevel gear, 241. Rotating part, 242. Rotating shaft,

[0069] 25. Through hole,

[0070] 3. Outer cylinder,

[0071] 4. Clamping assembly, 400. Middle guide cylinder, 401. Outer guide cylinder, 402. Upper locking threaded cylinder, 403. Lower locking threaded cylinder, 404. Lower locking piece, 405. Upper locking piece, 406. Lower pressing piece group, 407. Upper pressing piece group, 408. Guide chute, 409. Guide piece, 410. Gasket, 411. Sliding sealing ring,

[0072] 412, locking sleeve, 413, locking mouth, 414, annular connecting plate,

[0073] 5. Conductive sheet group, 6. Outer protective tube, 7. Protective hose, 8. Casing end screen connector, 80. End screen connector, 9. Grounding wire. DETAILED DESCRIPTION

[0074] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0075] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0076] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure, and should not be understood as limitations on the present disclosure.

[0077] An embodiment of a casing end screen signal acquisition device of the present application, referring to Figure 1 and Figure 2 ,include:

[0078] The mounting assembly 1, the adjustment assembly 2 and the conductive sheet assembly 5 are sequentially fixedly connected and used to be sleeved on the outer side of the bushing end screen connector 8;

[0079] Wherein: the installation component 1 is used to be fixedly connected to the casing end screen; Figure 13 The end screen connection base 80 is a structural diagram. The end screen connection base 80 is fixed on the casing end screen, and the casing end screen connector 8 is led out from the middle. When in use, the installation component 1 is fixedly connected to the casing end screen, that is, it is connected to the end screen connection base 80. It should be noted that in actual application, the end screen connection base 80 has other structures. In this application, the one targeted is Figure 13 The structure of the end screen connecting seat 80 shown;

[0080] The conductive sheet group 5 includes multiple conductive sheets, and a compression channel is formed between the multiple conductive sheets. The two ends of the compression channel are respectively provided with a bushing end screen connector 8 and a grounding wire 9. The conductive sheet in this application has an arc-shaped structure and is made of copper because copper has better ductility and conductivity. When the conductive sheet is compressed, a reliable electrical connection can be achieved between the bushing end screen connector 8 and the grounding wire 9.

[0081] A pressing assembly 4 is provided outside the conductive sheet group 5 ; the pressing assembly 4 is used to provide radial pressure to each conductive sheet outside the conductive sheet group 5 to press the bushing end screen connector 8 and the grounding wire 9 .

[0082] refer to Figure 7-11 The adjusting assembly 2 in the present application includes an adjusting cylinder 20 fixedly connected to the mounting assembly 1 at one end; an adjusting disk 23 is rotatably provided in the adjusting cylinder 20, and the adjusting disk 23 is coaxially arranged with the adjusting cylinder 20; a through hole 25 is opened in the middle of the adjusting disk 23 for passing the sleeve end screen connector 8; a large bevel gear 230 is arranged in an annular shape around the bottom of the adjusting disk 23; an Archimedean spiral groove 231 is provided on the top plane of the adjusting disk 23; correspondingly, a rotating mechanism 24 is provided below the adjusting disk 23, and a small bevel gear 240 is provided on the rotating mechanism 24 to mesh with the large bevel gear 230; the rotating mechanism 24 is rotatably connected to the adjusting cylinder 20; a plurality of adjusting sliders 21 are provided above the adjusting disk 23, and the bottom of the adjusting slider 21 is provided with teeth that cooperate with the Archimedean spiral groove 231; the adjusting slider 21 is slidably connected to the adjusting cylinder 20 through the sliding hole opened on the adjusting cylinder 20; each adjusting slider 21 is fixedly connected to one end of a conductive sheet above the end near the through hole 25 in the middle of the adjusting disk 23.

[0083] When in use, the installation assembly 1, the adjustment assembly 2 and the conductive sheet group 5 can be first sleeved on the outside of the bushing end screen connector 8, and then the rotation mechanism 24 can be controlled to rotate. Figure 10 and Figure 11When the rotating mechanism 24 rotates, the small bevel gear 240 drives the large bevel gear to rotate, thereby rotating the adjusting disk 23. When the adjusting disk 23 rotates, the Archimedean spiral groove 231 rotates, thereby driving the adjusting slider 21 to achieve synchronous radial movement. The radial movement of the adjusting slider 21 realizes the pre-clamping of the conductive sheet group 5 to the sleeve end screen connector 8.

[0084] It can be foreseen that since the grounding wire 9 needs to be connected to the other end of the conductive plate group 5, when in use, the radial movement of the slider 21 can be adjusted first to realize the pre-clamping of the conductive plate group 5 on the sleeve end screen connector 8, and reserve the insertion space of the clamping channel for the grounding wire 9; or the grounding wire 9 can be introduced into the clamping channel and then the position of the slider 21 can be adjusted.

[0085] It should be noted that the above-mentioned pre-clamping of the conductive sheet group 5 on the bushing end screen connector 8 by adjusting the radial movement of the slider 21 is achieved by the radial movement of each conductive sheet, and no axial pressure is applied to the bushing end screen connector 8, and no axial tension or pressure is caused to the bushing end screen connector 8; at the same time, since the conductive sheet is made of copper and has good ductility, it can fit well to the bushing end screen connector 8.

[0086] refer to Figure 10 In some embodiments, the rotating mechanism 24 includes a rotating shaft 242, one end of which is fixedly provided with a small bevel gear 240, and the other end of which is fixedly provided with a rotating part 241; the rotating part 241 and the adjusting cylinder 20 form a rotating pair; the center of the end of the rotating part 241 is fixedly provided with a tightening opening 22; the adjusting cylinder 20 is provided with a tightening hole that cooperates with the tightening opening 22.

[0087] refer to Figure 2-Figure 6 In some embodiments, the clamping assembly 4 includes a middle guide cylinder 400, and an upper locking threaded cylinder 402 and a lower locking threaded cylinder 403 are fixed on both sides of the middle guide cylinder 400; an upper pressing plate group 407 is fixed above the upper locking threaded cylinder 402; a lower pressing plate group 406 is fixed below the lower locking threaded cylinder 403; the upper locking threaded cylinder 402 is externally threadedly connected to an upper locking member 405; the lower locking threaded cylinder 403 is externally threadedly connected to a lower locking member 404; the upper locking member 405 and the lower locking member 404 both include a locking sleeve 412 and a locking mouth 413.

[0088] To improve the pressure-bearing capacity of the conductive sheet assembly 5 and prevent it from bending, in some embodiments, a plurality of guide members 409 are fixedly provided on the exterior of the lower locking member 404; an outer guide cylinder 401 is provided on the exterior of the guide member 409; the upper portion of the outer guide cylinder 401 is fixedly connected to the lower portion of the middle guide cylinder 400 via an annular connecting plate 414; an outer cylinder 3 is fixedly provided on the top of the adjustment assembly 2, and a guide slot 408 is provided on the top of the outer cylinder 3 to cooperate with the guide members 409; the outer cylinder 3 and the outer guide cylinder 401 form a cylindrical pair. The lower pressing sheet assembly 406 includes a plurality of evenly spaced lower pressing sheets, and the upper pressing sheet assembly 407 includes a plurality of evenly spaced upper pressing sheets; both the lower pressing sheets and the upper pressing sheets are metal springs, and the conductive sheet is made of copper.

[0089] In order to improve the sealing ability, in some embodiments, a sliding sealing ring 411 is further provided between the bottom of the outer guide cylinder 401 and the outer cylinder 3 .

[0090] refer to Figure 3 and Figure 6 After the conductive sheet group 5 is pre-clamped on the bushing end screen connector 8 by adjusting the radial movement of the slider 21, the outer guide cylinder 401 is manually rotated, and the threaded transmission between the lower locking thread cylinder 403 and the lower locking member 404 can make Figure 3 During its movement, the locking port 413 applies pressure to the lower pressing plate group 406, and the lower pressing plates of the lower pressing plate group 406 are closed together, so that the lower pressing plate group 406 applies pressure to the conductive plate group 5, thereby reducing the diameter of the compression channel and achieving further clamping of the end screen connector 8 of the sleeve.

[0091] Likewise, manually rotating the upper locking member 405 can further tighten the grounding wire 9 .

[0092] In some embodiments, a gasket 410 is provided between the annular connecting plate 414 and the outer cylinder 3 .

[0093] It should be noted that, in the above process, the bushing end screen connector 8 located in the compression channel of the conductive sheet group 5 never receives any axial pressure, and there is no axial tension or pressure on the bushing end screen connector 8, which prevents the problem of breakage between the root of the bushing end screen connector 8 and the connection between the bushing end screen and the bushing end screen due to the axial force, thereby improving reliability.

[0094] In some embodiments, reference Figure 1 and Figure 2The mounting assembly 1 includes a fixed base having a cylindrical interior and internal mounting threads 10 that mate with the end shield connector 80. In some embodiments, the fixed base includes a mounting base 11 below and an external mounting portion 12 above. The external mounting portion 12 is threadedly connected to the outer protective tube 6 to protect the adjustment assembly 2, the clamping assembly 4, and the conductive sheet assembly 5.

[0095] In some embodiments, reference Figure 12 The outer protective tube 6 is fixedly connected to the protective hose 7, and the grounding wire 9 is sleeved inside the protective hose 7.

[0096] When online monitoring is required, the outer protective tube 6 is unscrewed, and then the upper locking piece 405 is screwed to pull out the grounding wire 9, and the test line is placed in the compression channel and the upper locking piece 405 is tightened.

[0097] The present application discloses a bushing end screen signal acquisition device, which is convenient for changing lines when online monitoring and signal acquisition are required. The design of the conductive sheet group 5 makes the present application discloses a bushing end screen signal acquisition device, which is suitable for grounding wires 9 and bushing end screen connectors 8 of different wire diameters, and has strong practicality and a wide range of applications.

[0098] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0099] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it does not limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or variations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A casing end screen signal acquisition device, characterized by: include: The mounting assembly (1), the adjustment assembly (2) and the conductive sheet assembly (5) are sequentially fixedly connected and used to be sleeved outside the bushing end screen connector (8); The mounting assembly (1) is used for fixed connection with the casing end screen; The conductive sheet group (5) comprises a plurality of conductive sheets, a compression channel is formed between the plurality of conductive sheets, and a bushing end screen connector (8) and a grounding wire (9) are respectively provided at both ends of the compression channel; A pressing assembly (4) is provided outside the conductive sheet group (5); the pressing assembly (4) is used to provide radial pressure to each conductive sheet outside the conductive sheet group (5) to press the bushing end screen connector (8) and the grounding wire (9); The pressing assembly (4) comprises a middle guide cylinder (400), and an upper locking thread cylinder (402) and a lower locking thread cylinder (403) are fixedly provided on both sides of the middle guide cylinder (400); An upper pressing plate group (407) is fixedly provided above the upper locking threaded cylinder (402); a lower pressing plate group (406) is fixedly provided below the lower locking threaded cylinder (403); The upper locking threaded barrel (402) is externally threadedly connected to an upper locking member (405); the lower locking threaded barrel (403) is externally threadedly connected to a lower locking member (404); The upper locking member (405) and the lower locking member (404) both include a locking sleeve (412) and a locking opening (413); A plurality of guide members (409) are fixedly provided on the outside of the lower locking member (404); an outer guide cylinder (401) is provided on the outside of the guide member (409); the upper portion of the outer guide cylinder (401) is fixedly connected to the lower portion of the middle guide cylinder (400) via an annular connecting plate (414); An outer cylinder (3) is fixedly provided above the adjustment assembly (2), and a guide groove (408) is provided on the top of the outer cylinder (3) to cooperate with the guide member (409); The outer cylinder (3) and the outer guide cylinder (401) form a cylindrical pair.

2. The casing end screen signal acquisition device according to claim 1, characterized in that: The adjustment assembly (2) comprises an adjustment cylinder (20) having one end fixedly connected to the mounting assembly (1); an adjustment disk (23) is rotatably provided in the adjustment cylinder (20), and the adjustment disk (23) is coaxially arranged with the adjustment cylinder (20); A through hole (25) is provided in the middle of the adjusting disk (23), and a large bevel gear (230) is provided in a ring around the bottom of the adjusting disk (23); an Archimedean spiral groove (231) is provided on the top plane of the adjusting disk (23); A rotating mechanism (24) is provided below the adjusting disk (23), and a small bevel gear (240) is provided on the rotating mechanism (24) and is engaged with the large bevel gear (230); the rotating mechanism (24) is rotatably connected to the adjusting cylinder (20); A plurality of adjustment sliders (21) are provided above the adjustment disk (23), and teeth that cooperate with the Archimedean spiral groove (231) are provided at the bottom of the adjustment sliders (21); The adjusting slider (21) is slidably connected to the adjusting cylinder (20) through a sliding hole provided on the adjusting cylinder (20); Each adjustment slider (21) is fixedly connected to one end of a conductive sheet above the end portion close to the middle through hole (25) of the adjustment disk (23).

3. The casing end screen signal acquisition device according to claim 2, characterized in that: The rotating mechanism (24) includes a rotating shaft (242), one end of the rotating shaft (242) is fixedly provided with a small bevel gear (240), and the other end is fixedly provided with a rotating portion (241); the rotating portion (241) and the adjusting cylinder (20) form a rotating pair; A tightening opening (22) is fixedly provided at the center of the end of the rotating portion (241); and a tightening hole cooperating with the tightening opening (22) is provided on the adjusting cylinder (20).

4. The casing end screen signal acquisition device according to claim 1, characterized in that: A sliding sealing ring (411) is provided between the bottom of the outer guide cylinder (401) and the outer cylinder (3).

5. The casing end screen signal acquisition device according to claim 1, characterized in that: The lower pressing plate group (406) comprises a plurality of lower pressing plates arranged at even intervals; The upper pressing plate group (407) comprises a plurality of upper pressing plates evenly spaced apart; The lower pressing plate and the upper pressing plate are both metal springs; The conductive sheet is made of copper.

6. The casing end screen signal acquisition device according to claim 1, characterized in that: The mounting assembly (1) comprises a fixing seat, the interior of the fixing seat is a cylindrical structure, and an internal mounting thread (10) is provided inside the fixing seat to cooperate with the end screen connecting seat (80).

7. The casing end screen signal acquisition device according to claim 6, characterized in that: The fixing seat comprises a mounting base (11) at the bottom and an external mounting portion (12) at the top; the exterior of the external mounting portion (12) is threadedly connected to the outer protective tube (6).

8. The casing end screen signal acquisition device according to claim 7, characterized in that: The outer protective cylinder (6) is fixedly connected to the protective hose (7).

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