Double-contact three-direction adjustable electricity testing and phasing multifunctional trolley

Abstract

The invention provides a double-contact three-direction adjustable electricity testing and phasing multifunctional trolley, which is used for solving the technical problems that the operation is complicated and the reliability is poor when the existing high-voltage switch equipment is used for electricity testing and phasing. Comprising a vehicle frame, and the front end of the vehicle frame is provided with a sealing plate ejecting assembly used for ejecting a to-be-detected contact sealing plate; the frame is provided with two groups of X-direction, Y-direction and Z-direction adjusting frames; the number of the X-direction, Y-direction and Z-direction adjusting frames is two; the two groups of XYZ three-direction adjusting frames are arranged in parallel in a spaced mode in the Y direction, and contact assemblies are installed at the moving ends of the two groups of XYZ three-direction adjusting frames. The X-direction, Y-direction and Z-direction adjusting frame is arranged to adjust the position of the contact assembly, during detection, the closing plate jacking assembly automatically jacks the locking device open, the contact assembly is accurately connected to the position of the to-be-detected static contact for detection, the complexity of detection operation is reduced, and the detection stability is improved.

Description

Technical Field

[0001] The invention relates to the field of electric power testing, in particular to a double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley. Background Art

[0002] With the updating and iteration of technology in the power industry and the increase in urban electricity load, various substations have been built and put into operation one after another, and various types of switch cabinets have been put into operation or maintenance. Before the switchgear is put into operation and power is delivered, the power maintenance personnel must test the electricity and check the phase sequence in the high-voltage switch compartment of the switchgear. In the prior art, since the primary side static contact and the secondary side static contact to be tested or phased are both equipped with locking devices to prevent accidental touch, there are great obstacles to the test or phase detection work.

[0003] In response to the above technical problems, the current working method is: first manually open the locking device continuously, then hold the contact, and simultaneously test the primary side static contact and the secondary side static contact to be tested or check the phase. This work is mostly done manually by operators, with poor reliability, difficult operation, complicated process, and a greater risk of electric shock. Summary of the invention

[0004] The purpose of the present invention is to provide a double-contact three-way adjustable multifunctional trolley for testing electricity and setting phases, so as to solve the technical problems of complicated operation and poor reliability of existing high-voltage switchgear during testing electricity and setting phases.

[0005] A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley comprises a frame, and a sealing plate opening assembly for opening a sealing plate of a contact to be tested is arranged at the front end of the frame;

[0006] The frame is provided with an XYZ three-way adjustment frame, and a contact assembly for electrical testing or phase detection is installed at the moving end of the XYZ three-way adjustment frame.

[0007] Optionally, the sealing plate top opening assembly comprises U-shaped groove plates respectively mounted on both sides of the front end of the frame;

[0008] The U-shaped groove plate is provided with a waist-shaped mounting hole, and the U-shaped groove plate is fastened to the side wall of the frame by screws passing through the waist-shaped mounting hole, and a flange edge is provided at the front end of the U-shaped groove plate.

[0009] Optionally, the XYZ three-way adjustment frame includes an X-way slide rail and a horizontal adjustment slide table slidably arranged on the X-way slide rail;

[0010] The horizontal adjustment slide is equipped with a Z-direction slide rail arranged in the vertical direction, a vertical adjustment slide is slidably arranged on the Z-direction slide rail, a mounting cylinder with an axis arranged in the Y direction is installed on the vertical adjustment slide, and the contact assembly is installed at the front end of the mounting cylinder.

[0011] Optionally, the contact assembly includes an anti-touch sleeve with one end sealed, and a spring is installed in the anti-touch sleeve;

[0012] A connecting rod is slidably arranged in the anti-touch sleeve. One end of the connecting rod is located in the anti-touch sleeve and contacts one end of the spring. The other end of the connecting rod extends out of an opening of the anti-touch sleeve. A contact is installed on the outer wall of the sealed end of the anti-touch sleeve.

[0013] Optionally, a waist-shaped limiting groove is provided on the side wall of the connecting rod, and the length direction of the waist-shaped limiting groove is the same as the axial direction of the connecting rod;

[0014] A first threaded hole connecting the inner and outer walls of the anti-touch sleeve is provided on the outer wall thereof, a first threaded locking rod is threadedly connected to the first threaded hole, a front end of the first threaded locking rod is inserted into the waist-shaped limiting groove, and the spring is in a compressed state.

[0015] Optionally, one end of the connecting rod extending out of the opening of the anti-touch sleeve is arranged in the mounting tube;

[0016] A second threaded hole connecting the inner and outer walls of the installation tube is formed on the outer side wall thereof, and a second threaded locking rod is threadedly connected to the second threaded hole, and a front end of the second threaded locking rod abuts against the outer wall of the connecting rod.

[0017] Optionally, the number of the XYZ three-way adjustment frames is two groups;

[0018] The two groups of XYZ three-way adjustment frames are arranged in parallel and spaced apart in the Y direction, and the moving ends of the two groups of XYZ three-way adjustment frames are both installed with contact assemblies.

[0019] Optionally, the frame includes a base, and side rollers are installed on both side walls of the base;

[0020] An L-shaped main board is installed on the base, and the L-shaped main board includes a horizontal board and a vertical board which are perpendicular to each other. The horizontal board is installed on the base, and the XYZ three-way adjustment frame is arranged on the horizontal board. L-shaped side boards are installed on both sides of the L-shaped main board, and two groups of the sealing plate top opening components are respectively installed on the L-shaped side boards on both sides.

[0021] Optionally, a window inner hole is provided on the vertical plate of the L-shaped main board;

[0022] A glass outer frame is installed on the vertical plate at the inner hole of the window, an L-shaped glass inner frame is installed in the glass outer frame, and glass is installed in the L-shaped glass inner frame.

[0023] Optionally, a front positioning hole is provided on the side wall at the front end of the base.

[0024] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0025] 1. When conducting electrical testing and phase determination, the present application automatically opens the locking device through the sealing plate opening assembly, and allows the contact assembly to accurately connect to the static contact position to be tested for electrical testing and phase determination, thereby reducing the complexity of the detection operation and improving the stability of the detection.

[0026] 2. This application adjusts the position of the contact assembly by setting an XYZ three-way adjustment frame, so that it can be used for electrical testing and phase detection of various types of high-voltage switchgear with static contacts located in different positions, greatly enhancing the adaptability of the device.

[0027] 3. The elastic sliding mechanism formed by the anti-touch sleeve, spring, connecting rod, waist-shaped limit groove and first threaded locking rod in the present application can effectively protect the contact from being squeezed and damaged during detection or when the contact is accidentally touched.

[0028] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings of the present invention are as follows.

[0030] Figure 1 It is a structural schematic diagram of the multifunctional vehicle for testing electricity and determining phases of the present invention.

[0031] Figure 2 It is a structural schematic diagram of the frame and the cover plate top opening assembly of the present invention.

[0032] Figure 3 It is a front view of the observation assembly of the present invention.

[0033] Figure 4 It is a schematic structural diagram of the L-shaped glass inner frame of the present invention.

[0034] Figure 5 It is a structural schematic diagram of the XYZ three-way adjustment frame of the present invention.

[0035] Figure 6It is a schematic diagram of the structure of the Z-axis slide rail and the vertical adjustment slide table of the present invention.

[0036] Figure 7 It is a cross-sectional view of the contact assembly of the present invention.

[0037] Figure 8 It is a schematic structural diagram of the contact assembly of the present invention.

[0038] In the figure: 1-frame; 2-covering plate top opening assembly; 3-XYZ three-way adjustment frame; 4-contact assembly; 101-base; 102-L-shaped main board; 103-L-shaped side plate; 104-front positioning hole; 105-window inner hole; 106-upper cover plate; 107-transverse waist-shaped hole; 108-side roller; 109-first fastening bolt module; 201-U-shaped groove plate; 202-waist-shaped mounting hole; 203-flange edge; 301-X-direction slide rail; 302-horizontal adjustment slide; 303-Z-direction slide rail; 304-vertical adjustment slide; 305-installation Cylinder; 306-second threaded hole; 307-second threaded locking rod; 308-adjusting knob; 309-locking knob; 401-anti-touch sleeve; 402-spring; 403-connecting rod; 404-contact; 405-waist-shaped limiting groove; 406-first threaded hole; 407-first threaded locking rod; 408-externally threaded connecting rod; 409-connecting internal threaded hole; 410-metal contact; 5-observation component; 501-glass outer frame; 502-L-shaped glass inner frame; 503-glass; 504-waist-shaped through hole; 505-second fastening bolt module. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Embodiment 1:

[0041] like Figure 1 The double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley shown comprises a frame 1, the front end of which is provided with a sealing plate opening assembly 2 for opening a sealing plate of a contact to be tested;

[0042] The frame 1 is provided with an XYZ three-way adjustment frame 3 , and a contact assembly 4 for electrical testing or phase detection is installed at the moving end of the XYZ three-way adjustment frame 3 .

[0043] In this embodiment, when conducting the electrical test and phase determination test, the multifunctional trolley is pushed into the circuit breaker trolley box of the central switch cabinet, and the locking device of the busbar and the outlet position baffle is automatically opened by the sealing plate opening assembly 2 to expose the busbar and the outlet interface, and the contact assembly 4 is accurately connected to the static contact position to be tested for electrical test and phase determination test (when conducting the electrical test, the contact assembly 4 is an electrical test pen, and when conducting the phase determination test, the contact assembly 4 is a phase determination contact), which reduces the complexity of the detection operation and improves the stability of the detection. The present application adjusts the position of the contact assembly by setting an XYZ three-way adjustment frame 3, so that it can be applied to the electrical test and phase determination test of multiple types of high-voltage switchgear with static contacts located in different positions, which greatly enhances the adaptability of the device.

[0044] like Figure 1 and Figure 2 As shown, the frame 1 includes a base 101, and side rollers 108 are installed on both side walls of the base 101;

[0045] An L-shaped main board 102 is installed on the base 101, and the L-shaped main board 102 includes a horizontal plate and a vertical plate that are perpendicular to each other. The horizontal plate is installed on the base 101, and the XYZ three-way adjustment frame 3 is arranged on the horizontal plate. L-shaped side panels 103 are installed on both sides of the L-shaped main board 102, and two groups of the sealing plate top opening components 2 are respectively installed on the L-shaped side panels 103 on both sides. A front positioning hole 104 is opened on the side wall at the front end of the base 101.

[0046] In this embodiment, there are four side rollers 108 on both sides, which can better support the multifunctional trolley. A slide rail is set in the circuit breaker trolley box of the center-mounted switch cabinet. When the multifunctional trolley is pushed in, the side rollers 108 move forward in a straight line on the slide rail; the four rollers can effectively convert sliding friction into rolling friction, reducing the resistance of the trolley. In this embodiment, an upper sealing plate 106 is also welded and installed on the top of the vertical plate. The upper sealing plate 106 is arranged parallel to the horizontal plate. When the multifunctional trolley is pushed into the circuit breaker trolley box of the center-mounted switch cabinet, the upper sealing plate 106 can better fit the inner upper top surface thereof, which not only plays a stabilizing role in supporting the trolley, but also can make the high-voltage discharge arc that may be induced during the phase setting and electrical testing operation be enclosed in the closed space formed by the multifunctional trolley and the circuit breaker trolley box, reducing the possibility of arc overflow and ensuring the safety of the operator.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a window inner hole 105 is opened on the vertical plate of the L-shaped main board 102;

[0048] An observation assembly 5 is provided at the window inner hole 105 , and the observation assembly 5 includes a glass outer frame 501 installed on a vertical plate at the window inner hole 105 , an L-shaped glass inner frame 502 is installed in the glass outer frame 501 , and glass 503 is installed in the L-shaped glass inner frame 502 .

[0049] In this embodiment, the glass 503 is explosion-proof glass, and the glass outer frame 501 is welded to the vertical plate. Since it is fixed by welding, it has good support and stability for the transparent visible observation glass 503; the glass outer frame 501 is a non-detachable fixing device. In this embodiment, the glass 503 is installed in the L-shaped glass inner frame 502, and one side of the glass 503 contacts the folded edge of the L-shaped glass inner frame 502, and glass glue is applied to the gap of the contact surface to play a role in sealing and shock absorption. Two waist-shaped through holes 504 are provided on each outer wall of the L-shaped glass inner frame 502 and the glass outer frame 501, and the second fixing bolt module 505 passes through the two waist-shaped through holes 504 in sequence to achieve relative fixation of the glass outer frame 501, the L-shaped glass inner frame 502 and the glass 503. By providing the waist-shaped through hole 504, the glass 503 can be fine-tuned when it is installed, so that the installation is not difficult due to the geometric deformation of the glass or the device, or when the explosion-proof glass of different thickness is replaced due to the slight change in thickness, the problem of inability to adapt is avoided. In this embodiment, through the window explosion-proof glass, the flashing information of the light emitted by the contact can be clearly observed during the electrical inspection and phase determination process, and the alarm sound emitted by the contact assembly can also be heard.

[0050] like Figure 1 and Figure 2 As shown, the sealing plate top opening assembly 2 includes U-shaped groove plates 201 respectively installed on both sides of the front end of the frame 1;

[0051] The U-shaped groove plate 201 is provided with a waist-shaped mounting hole 202 . The U-shaped groove plate 201 is fixed to the side wall of the frame 1 by screws passing through the waist-shaped mounting hole 202 . A flange edge 203 is provided at the front end of the U-shaped groove plate 201 .

[0052] In this embodiment, when the multifunctional trolley is pushed in, the flange edge 203 at the front end of the U-shaped slot plate 201 contacts the locking device of the baffle plate and drives the locking device to open. During the opening process of the locking device, the busbar and the outlet position baffle plate are driven to move so that the busbar and the outlet interface are exposed, which is convenient for electrical testing and phase determination. In this embodiment, a transverse waist-shaped hole 107 is provided on the L-shaped side plate 103. When the U-shaped slot plate 201 is installed, the first fixing bolt module 109 passes through the transverse waist-shaped hole 107 and the waist-shaped mounting hole 202 to achieve its installation. By setting the transverse waist-shaped hole 107 and the waist-shaped mounting hole 202, the installation position of the U-shaped slot plate 201 can be adjusted to meet the locking device at different positions.

[0053] like Figure 1 , Figure 5 and Figure 6 As shown, the XYZ three-way adjustment frame 3 includes an X-direction slide rail 301 and a horizontal adjustment slide table 302 slidably arranged on the X-direction slide rail 301;

[0054] The horizontal adjustment slide 302 is provided with a Z-direction slide rail 303 arranged in the vertical direction, the Z-direction slide rail 303 is slidably provided with a vertical adjustment slide 304, the vertical adjustment slide 304 is provided with a mounting cylinder 305 arranged with an axis along the Y direction, and the contact assembly 4 is installed at the front end of the mounting cylinder 305.

[0055] In this embodiment, the number of the XYZ three-way adjustment frame 3 is two groups, and the two groups of the XYZ three-way adjustment frames 3 are arranged in parallel and spaced in the Y direction, and the moving ends of the two groups of the XYZ three-way adjustment frames 3 are both installed with contact assemblies 4. The two groups of contact assemblies 4 realize the comparative electrical testing and phase verification operations of the busbar and the outgoing line. The X-direction slide rails 301 of the two groups of XYZ three-way adjustment frames 3 are arranged in parallel, and the X-direction slide rail 301 located at the front side of the multifunctional trolley is defined as the front XYZ three-way adjustment frame, and the other is the rear XYZ three-way adjustment frame. The contact assembly 4 on the front XYZ three-way adjustment frame is the front contact assembly, and the contact assembly 4 on the rear XYZ three-way adjustment frame is the rear contact assembly. When performing electrical testing and phase detection, the front contact assembly is used to test the joint to be tested (outgoing line joint) running at a low position, and the rear contact assembly is used to test the joint to be tested (busbar joint) running at a high position. In the actual detection process, there are a total of six joints to be tested, namely busbar A, busbar B, busbar C, outgoing line A, outgoing line B and outgoing line C; generally speaking, outgoing line A is directly below busbar A, outgoing line B is directly below busbar B, and outgoing line C is directly below busbar C. The static contacts to be tested are arranged symmetrically on the neutral plane; if busbar B and outgoing line B are to be measured at the same time, one contact assembly needs to be located at a high place and the other contact assembly needs to be located at a low place.

[0056] In this embodiment, the horizontal adjustment slide 302 and the X-axis slide rail 301 and the vertical adjustment slide 304 and the Z-axis slide rail 303 are connected by gear racks. Racks are arranged in the length direction of the X-axis slide rail 301 and the Z-axis slide rail 303. Gears are arranged on the horizontal adjustment slide 302 and the vertical adjustment slide 304. The gears are meshed with the racks. An adjustment knob 308 is installed at one end of the rotating shaft of the gear. A locking knob 309 is arranged on the side wall of the horizontal adjustment slide 302 and the vertical adjustment slide 304. When adjusting the position, loosen the locking knob 309, hold the adjustment knob 308 to move the position, and tighten the locking knob 309 after adjusting to the predetermined position. The locking knob 309 is arranged to prevent it from falling due to gravity or sliding when subjected to external force.

[0057] In this embodiment, the mounting cylinder 305, the second threaded hole 306 and the second threaded locking rod 307 are all made of non-metallic insulating material polytetrafluoroethylene, and the insulating material polytetrafluoroethylene is used to achieve the insulation between the contact assembly 4 and the multifunctional trolley. The vertical adjustment slide 304 is made of metal. By pre-embedding a set screw on the vertical adjustment slide 304 and opening a threaded hole matching the set screw at one end of the mounting cylinder 305, the relative installation of the mounting cylinder 305 and the vertical adjustment slide 304 is achieved. The depth of the threaded hole is greater than the length of the set screw, ensuring that the set screw will not protrude after connection to affect the stroke of the connecting rod 403.

[0058] like Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, the contact assembly 4 includes an anti-touch sleeve 401 with one end sealed, and a spring 402 is installed in the anti-touch sleeve 401;

[0059] A connecting rod 403 is slidably arranged in the anti-touch sleeve 401. The connecting rod 403 is located at one end of the anti-touch sleeve 401 and contacts one end of the spring 402. The other end of the connecting rod 403 extends out of the open end of the anti-touch sleeve 401. A contact 404 is installed on the outer wall of the sealed end of the anti-touch sleeve 401.

[0060] In this embodiment, the anti-touch sleeve 401 and the connecting rod 403 are made of non-metallic insulating material polytetrafluoroethylene. The above-mentioned parts not only play the role of automatically adjusting the position of the contact 404 under the condition of accidental touch, but also play the role of insulation to improve the safety of personnel and equipment.

[0061] In this embodiment, an external threaded connecting rod 408 is provided at one end of the sealing of the anti-touch sleeve 401, and a connecting internal threaded hole 409 is provided at the mounting end of the contact 404. The contact 404 and the anti-touch sleeve 401 are mounted by threading the internal threaded hole 409 and the external threaded connecting rod 408. In this embodiment, the front end of the contact 404 is a metal contact 410. When performing an electrical test, the contact 404 is an electrical test pen, and when performing a phase test, the contact 404 is a phase-fixing contact. The arrangement of the external threaded connecting rod 408 and the connecting internal threaded hole 409 improves the convenience of replacement.

[0062] like Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, a waist-shaped limiting groove 405 is provided on the side wall of the connecting rod 403, and the length direction of the waist-shaped limiting groove 405 is the same as the axial direction of the connecting rod 403;

[0063] A first threaded hole 406 connecting the inner and outer walls of the anti-touch sleeve 401 is formed on the outer wall thereof, and a first threaded locking rod 407 is threadedly connected to the first threaded hole 406. The front end of the first threaded locking rod 407 is inserted into the waist-shaped limiting groove 405, and the spring 402 is in a compressed state.

[0064] In this embodiment, the anti-touch sleeve 401, the connecting rod 403 and the first threaded locking rod 407 are made of non-metallic insulating material polytetrafluoroethylene. The insulation between the contact 404 and the multifunctional trolley is achieved through the above-mentioned insulation setting. When the connecting rod 403 and the anti-touch sleeve 401 are installed, the spring 402 is first placed in the anti-touch sleeve 401, and the connecting rod 403 is inserted into the anti-touch sleeve 401. The spring 402 is compressed by pushing the connecting rod 403 to move the front end of the waist-shaped limiting groove 405 to the bottom of the first threaded locking rod 407, and the first threaded locking rod 407 is tightened to be inserted into the waist-shaped limiting groove 405 (the bottom end surface of the first threaded locking rod 407 does not contact the bottom surface of the waist-shaped limiting groove 405). When the lower end of the first threaded locking rod 407 contacts the front end of the waist-shaped limiting groove 405 (the end close to the contact 404), the spring 402 is in a compressed state. When there is no external force, the connecting rod 403 and the anti-touch sleeve 401 will not slide relative to each other. When the contact 404 contacts the busbar or the joint during the electrical inspection and phase detection, the spring 402 will not cause damage to the joint and the contact due to the buffering effect of the spring 402.

[0065] like Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, one end of the connecting rod 403 extending out of the opening of the anti-touch sleeve 401 is arranged in the installation cylinder 305;

[0066] A second threaded hole 306 connecting the inner and outer walls of the installation tube 305 is formed on the outer wall thereof. A second threaded locking rod 307 is threadedly connected to the second threaded hole 306 . The front end of the second threaded locking rod 307 abuts against the outer wall of the connecting rod 403 .

[0067] In this embodiment, when the contact assembly 4 is installed, the contact assembly 4 is assembled first, and then the second threaded locking rod 307 is loosened, one end of the connecting rod 403 is inserted into the installation cylinder 305, and the second threaded locking rod 307 is tightened to fix the contact assembly 4 and the installation cylinder 305. In this embodiment, the second threaded locking rod 307 includes a screw and a knob provided on the screw, and an anti-slip knurling is provided on the outer wall of the knob.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley, characterized in that: It comprises a vehicle frame (1), wherein a sealing plate opening assembly (2) for opening a sealing plate of a contact to be detected is arranged at the front end of the vehicle frame (1); The vehicle frame (1) is provided with an XYZ three-way adjustment frame (3), and a contact assembly (4) for electrical testing or phase detection is installed at the movable end of the XYZ three-way adjustment frame (3).

2. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 1, characterized in that: The sealing plate opening assembly (2) comprises U-shaped groove plates (201) respectively mounted on both sides of the front end of the vehicle frame (1); The U-shaped groove plate (201) is provided with a waist-shaped mounting hole (202); the U-shaped groove plate (201) is fixed to the side wall of the frame (1) by screws passing through the waist-shaped mounting hole (202); and a flange edge (203) is provided at the front end of the U-shaped groove plate (201).

3. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 1, characterized in that: The XYZ three-way adjustment frame (3) comprises an X-way slide rail (301) and a horizontal adjustment slide table (302) slidably arranged on the X-way slide rail (301); The horizontal adjustment slide (302) is provided with a Z-direction slide rail (303) arranged in the vertical direction, the Z-direction slide rail (303) is provided with a vertical adjustment slide (304) slidably arranged, the vertical adjustment slide (304) is provided with a mounting cylinder (305) whose axis is arranged in the Y direction, and the contact assembly (4) is mounted at the front end of the mounting cylinder (305).

4. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 3, characterized in that: The contact assembly (4) comprises an anti-touch sleeve (401) with one end sealed, and a spring (402) is installed in the anti-touch sleeve (401); A connecting rod (403) is slidably arranged in the anti-touch sleeve (401); one end of the connecting rod (403) is located in the anti-touch sleeve (401) and contacts one end of the spring (402); the other end of the connecting rod (403) extends out of an open end of the anti-touch sleeve (401); and a contact (404) is installed on the outer wall of the sealed end of the anti-touch sleeve (401).

5. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 4, characterized in that: A waist-shaped limiting groove (405) is provided on the side wall of the connecting rod (403), and the length direction of the waist-shaped limiting groove (405) is the same as the axial direction of the connecting rod (403); A first threaded hole (406) connecting the inner and outer walls of the anti-touch sleeve (401) is provided on the outer wall thereof, a first threaded locking rod (407) is threadedly connected to the first threaded hole (406), a front end of the first threaded locking rod (407) is inserted into the waist-shaped limiting groove (405), the spring (402) is in a compressed state, and the anti-touch sleeve (401), the connecting rod (403) and the first threaded locking rod (407) are all made of insulating polytetrafluoroethylene.

6. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 5, characterized in that: One end of the connecting rod (403) extending out of the opening of the anti-touch sleeve (401) is arranged in the installation tube (305); A second threaded hole (306) connecting the inner and outer walls of the installation tube (305) is provided on the outer wall thereof, and a second threaded locking rod (307) is threadedly connected to the second threaded hole (306). The front end of the second threaded locking rod (307) contacts the outer wall of the connecting rod (403). The installation tube (305) and the second threaded locking rod (307) are both made of insulating polytetrafluoroethylene.

7. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 1, 3 or 4, characterized in that: The number of the XYZ three-way adjustment frames (3) is two sets; The two groups of XYZ three-way adjustment frames (3) are arranged in parallel and spaced apart in the Y direction, and the moving ends of the two groups of XYZ three-way adjustment frames (3) are both installed with contact assemblies (4).

8. The double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 1 is characterized in that: The frame (1) comprises a base (101), and side rollers (108) are installed on both side walls of the base (101); An L-shaped main board (102) is mounted on the base (101), the L-shaped main board (102) comprising a horizontal board and a vertical board perpendicular to each other, the horizontal board is mounted on the base (101), the XYZ three-way adjustment frame (3) is arranged on the horizontal board, L-shaped side boards (103) are mounted on both sides of the L-shaped main board (102), and two groups of the sealing plate top opening components (2) are respectively mounted on the L-shaped side boards (103) on both sides.

9. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 8, characterized in that: A window inner hole (105) is provided on the vertical plate of the L-shaped main plate (102); A glass outer frame (501) is installed on the vertical plate at the inner hole (105) of the window, an L-shaped glass inner frame (502) is installed in the glass outer frame (501), and glass (503) is installed in the L-shaped glass inner frame (502).

10. A double-contact three-way adjustable electric testing and phase-fixing multifunctional trolley according to claim 8, characterized in that: A front positioning hole (104) is provided on the side wall at the front end of the base (101).

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