Closing pressure testing device for GIS circuit breaker spring mechanism

Abstract

The invention relates to the technical field of spring pressure testing, and discloses a switching-on pressure testing device for a GIS circuit breaker spring mechanism, the switching-on pressure testing device comprises a lower plate and a pressure sensor, the top of the lower plate is symmetrically and fixedly connected with side plates, and the top ends of the two side plates are fixedly connected with the same top plate. A hydraulic rod is fixedly installed in the middle of the interior of the top plate, an extrusion disc is fixedly installed at the bottom end of a telescopic part of the hydraulic rod, a base plate is fixedly connected to the middle of the top of the lower plate, limiting mechanisms are arranged on the inner sides of the two side plates, and a moving mechanism is arranged in the base plate; the limiting mechanism comprises a fixing sleeve, the fixing sleeve is installed on the outer side of the telescopic part on one side, and the interior of the fixing sleeve is in threaded connection with a first bolt, so that the problems that in the subsequent pressure test of the spring, auxiliary guiding of the spring to be tested is inconvenient, inclination and contraction of the spring may be caused, the pressure test progress is hindered, and the service life of the spring is influenced are solved. And the test result is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of spring pressure testing, in particular to a closing pressure testing device for a spring mechanism of a GIS circuit breaker. Background Art

[0002] There is an energy storage spring in the GIS circuit breaker. The energy storage spring is used to complete the energy storage of the motor and provide the energy required for closing the circuit breaker. If the quality of the energy storage spring is unqualified, it will affect the opening and closing of the circuit breaker, and then affect the performance of the circuit breaker. The existing test device is not convenient for auxiliary guidance of the spring to be tested during the test, so that the spring may tilt during the test, thereby affecting the test effect.

[0003] For example, a device for spring pressure testing with announcement number CN206583561U includes: a base, a retractable column, a gasket, a height tester and a digital pressure gauge, the retractable column is arranged on the base, the retractable column is sleeved with a spring to be tested, the end of the spring to be tested that contacts the base is provided with a pressure probe, the pressure probe is connected to the digital pressure gauge, the gasket is buckled on the other end of the spring to be tested, a pressing hole is opened at one end of the measuring rod of the height tester, the inner diameter of the pressing hole is greater than or equal to the diameter of the retractable column, and the end of the measuring rod of the height tester with the pressing hole is arranged on the gasket. The column of the device is a retractable column, which can test springs of different lengths. However, the device positions the spring through the column. When the inner diameter of the spring is not completely in contact with the column, the spring may be tilted and contracted during the subsequent pressure test of the spring, which is not convenient for auxiliary guidance of the spring to be tested, hindering the pressure test process and affecting the test results.

[0004] Therefore, a closing pressure testing device for a spring mechanism of a GIS circuit breaker is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a closing pressure test device for a GIS circuit breaker spring mechanism, so as to solve the problem that during the subsequent pressure test of the spring, it is inconvenient to provide auxiliary guidance for the spring to be tested, which may cause the spring to tilt and shrink, hindering the pressure test process and affecting the test results.

[0006] To achieve the above object, the present invention provides the following technical solution: a closing pressure test device for a spring mechanism of a GIS circuit breaker, comprising a lower plate and a pressure sensor, the top of the lower plate being symmetrically fixedly connected to side plates, and the top ends of the two side plates being fixedly connected to the same top plate;

[0007] Also includes:

[0008] A hydraulic rod is fixedly installed in the middle of the top plate, a squeeze plate is fixedly installed at the bottom end of the telescopic part of the hydraulic rod, a base plate is fixedly connected to the middle of the top of the lower plate, a limiting mechanism is arranged on the inner sides of the two side plates, a moving mechanism is arranged inside the base plate, the pressure sensor is fixedly installed on the top of the base plate, and a positioning plate is symmetrically installed above the base plate;

[0009] The limiting mechanism includes a fixing sleeve, which is installed on the outside of the telescopic part of the hydraulic rod on one side, the internal thread of the fixing sleeve is connected with a bolt 1, one side of the fixing sleeve is fixedly connected with a connecting plate, one side of the bottom of the top plate is fixedly installed with a guide wheel 1 and a guide wheel 2 in sequence, the top of the connecting plate is fixedly connected with a steel rope, and one side of the top of the lower plate is symmetrically fixedly connected with a vertical rod;

[0010] The outer side of the vertical rod is slidably connected to the same horizontal plate, the steel rope passes around the guide wheel 1 and the guide wheel 2 and is fixedly connected to the horizontal plate, a push plate is slidably installed on the side of the horizontal plate close to the positioning plate, and a storage groove is provided on the side of the positioning plate close to the horizontal plate, and a measuring plate is rotatably connected inside the storage groove, and an auxiliary spring is fixedly installed on the inner wall of the storage groove, and the auxiliary spring is fixedly connected to the measuring plate;

[0011] A fixed block is symmetrically fixedly connected to the outer side of the positioning plate on one side, a cross bar is fixedly connected to one side of the fixed block, and a limiting sleeve is fixedly connected to the outer side of the positioning plate on the other side, an adjusting rod is slidably installed inside the cross bar, one end of the adjusting rod is fixedly connected to a placement ring, and a hard rubber tube is slidably connected inside the placement ring.

[0012] Preferably, the hydraulic rod is symmetrically arranged, the bottom end of the telescopic part of the hydraulic rod is fixedly connected to a mounting plate, and the extrusion plate is fixedly connected to the mounting plate by mounting bolts to facilitate replacement of the extrusion plate to adapt to the extrusion of the spring to be tested.

[0013] By adopting the above technical solution, the spring to be tested is positioned by the positioning plate, and multiple groups of hard rubber tubes can be provided as needed, thereby further limiting the spring to be tested and reducing the tilt of the spring to be tested during detection.

[0014] Preferably, screw holes are evenly opened on the outer side of the telescopic part of the hydraulic rod on one side, the bolt 1 is threadedly connected to the screw hole, the fixing sleeve is fixed to the telescopic part of the hydraulic rod on one side by the bolt 1, and there are no less than two steel ropes.

[0015] By adopting the above technical solution, once the bolts are tightened into the screw holes at the corresponding positions, the hydraulic rod will also drive the connecting plate to move, and the multiple steel ropes will increase the tensile strength.

[0016] Preferably, a sleeve is fixedly connected to the bottom of the horizontal plate, the number of the sleeve is the same as the vertical rod, the sleeve is slidably connected to the vertical rod, two bolts are symmetrically installed inside the horizontal plate, the two bolts are threadedly connected to the horizontal plate, and the horizontal plate is abutted against the push plate.

[0017] By adopting the above technical solution, loosen the second bolt, adjust the push plate to press against the outer side of the positioning plate, and then tighten the second bolt to position the measuring plate, so that the push plate can push the measuring plate.

[0018] Preferably, the measuring plate is rotatably connected to the receiving slot, the auxiliary springs are symmetrically arranged, and there are no less than two auxiliary springs.

[0019] By adopting the above technical solution, the push plate rises and drives the measuring plate to flip into the storage slot, which is convenient for detecting the spring to be tested.

[0020] Preferably, the cross bar is slidably connected to the limiting sleeve, a limiting block is provided at one end of the cross bar close to the limiting sleeve, and the limiting sleeve is located between the fixed block and the limiting block.

[0021] By adopting the above technical solution, the positioning plate on one side drives the cross bar to slide in the limit sleeve, which is convenient for adapting to the movement and adjustment between the two positioning plates, thereby better adapting to the limit of the spring to be tested.

[0022] Preferably, the adjusting rod is slidably connected to the cross rod, the adjusting rod is evenly arranged at equal distances, the top of the cross rod is threadedly connected with bolt three, the number of the bolt three is the same as the adjusting rod, and the positions correspond one to one, and the bolt three is in contact with the adjusting rod.

[0023] By adopting the above technical solution, bolt three is loosened and the position of the adjusting rod is moved alone, so that the adjusting rod drives the placement ring to move, and the placement ring drives the hard rubber tube to bend and adjust, so that the hard rubber tube adapts to the outside of the spring to be tested.

[0024] Preferably, the moving mechanism includes a step groove, which is opened on the top of the base plate, an inner rod is fixedly connected to the inside of the step groove, a step block is fixedly connected to the bottom of the positioning plate, the step block is slidably connected to the inner rod, and the step block is slidably connected to the step groove.

[0025] By adopting the above technical solution, the positions of the step block and the positioning plate can be adjusted by loosening the outer bolt four and releasing the pressure of the bolt four on the base plate.

[0026] Preferably, the step groove is symmetrically opened, and the outer side of the base plate is symmetrically opened with a side groove, the inside of the side groove is slidably connected with a bolt four, the bolt four is horizontally arranged, and the bolt four is threadedly connected to the step block.

[0027] By adopting the above technical solution, the positioning plate drives the step block to move, the step block slides on the inner rod, and the step block drives the bolt four to slide in the side groove. After adjustment, the bolt four is tightened so that the bolt four is pressed against the outside of the base plate, thereby positioning the step block and the positioning plate.

[0028] Compared with the prior art, the invention has the following beneficial effects: a limit mechanism is provided, a spring to be tested is placed on a pressure sensor, the spring to be tested is positioned by a moving mechanism, bolt three is loosened, and the position of the adjusting rod is moved alone, so that the adjusting rod drives the placement ring to move, and the placement ring drives the hard rubber tube to bend and adjust, so that the hard rubber tube is adapted to the outer side of the spring to be tested, and multiple groups of hard rubber tubes can be provided as needed, thereby further limiting the position of the spring to be tested, reducing the inclination of the spring to be tested during detection, and improving the detection effect;

[0029] 1. Set up a limit mechanism, place the spring to be tested on the pressure sensor, position the spring to be tested through the moving mechanism, loosen bolt three according to the outer size of the spring to be tested, and move the position of the adjusting rod alone, so that the adjusting rod drives the placement ring to move, and the placement ring drives the hard rubber tube to bend and adjust, so that the hard rubber tube fits the outer side of the spring to be tested. Multiple groups of hard rubber tubes can be set as needed, so as to further limit the spring to be tested, reduce the inclination of the spring to be tested during detection, and improve the detection effect. Start the hydraulic rod to drive the extrusion plate to descend until the extrusion plate fits the top of the spring to be tested, and then tighten bolt one to the screw hole at the corresponding position. At this time, the hydraulic rod will also drive the connecting plate to move, and continue Start the hydraulic rod to descend, the telescopic part of the hydraulic rod drives the extrusion plate to squeeze the tension spring to be tested, and drives the fixed sleeve and the connecting plate to descend at the same time, the connecting plate drives the steel rope to descend, the steel rope is guided by the guide wheel 1 and the guide wheel 2, and can drive the horizontal plate to rise, the vertical rod assists the horizontal plate to rise steadily, the push plate rises and drives the measuring plate to flip into the storage slot, until the pressure sensor displays the same value as the reference value again, observe the state of the measuring plate, if the measuring plate does not flip to the numerical state, the spring to be tested is unqualified, which solves the problem that it is inconvenient to assist in guiding the spring to be tested during the subsequent pressure test of the spring, which may cause the spring to tilt and shrink, hinder the pressure test process, and affect the test results;

[0030] 2. A moving mechanism is provided. When placing the spring to be tested, the positions of the step block and the positioning plate can be adjusted by loosening the four bolts on the outside to release the pressure of the four bolts on the base plate. The positioning plates on both sides are pulled to make the two positioning plates fit the outside of the spring to be tested. The positioning plate drives the step block to move, and the step block slides on the inner rod. The step block drives the four bolts to slide in the side groove. At this time, the positioning plate on one side drives the cross bar to slide in the limit sleeve. After adjustment, tighten the four bolts so that the four bolts are pressed against the outside of the base plate, thereby positioning the step block and the positioning plate, which is convenient for subsequent pressure detection of the spring to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of a second three-dimensional overall structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the vertical rod installation structure of the present invention;

[0034] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0035] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0036] Figure 6 This is a schematic diagram of the installation structure of the positioning plate of the present invention;

[0037] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0038] Figure 8 This is a schematic diagram of the installation structure of the hard rubber hose of the present invention;

[0039] Fig. 9 It is a schematic diagram of the cross-sectional structure of the substrate of the present invention;

[0040] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at D in the middle.

[0041] In the figure: 1. lower plate; 2. side plate; 3. top plate; 4. hydraulic rod; 5. extrusion plate; 6. base plate; 7. limiting mechanism; 71. fixing sleeve; 72. screw hole; 73. bolt one; 74. connecting plate; 75. guide wheel one; 76. guide wheel two; 77. steel rope; 78. vertical rod; 79. horizontal plate; 710. sleeve; 711. push plate; 712. bolt two; 713. storage groove; 714. measuring plate; 715. auxiliary spring; 716. fixing block; 717. horizontal rod; 718. limiting sleeve; 719. adjusting rod; 720. placement ring; 721. bolt three; 722. hard rubber tube; 8. moving mechanism; 81. step groove; 82. step block; 83. inner rod; 84. side groove; 85. bolt four; 9. pressure sensor; 10. positioning plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 10 The present invention provides a technical solution: a closing pressure testing device for a GIS circuit breaker spring mechanism, comprising a lower plate 1 and a pressure sensor 9, the top of the lower plate 1 is symmetrically fixedly connected to side plates 2, and the tops of the two side plates 2 are fixedly connected to the same top plate 3.

[0044] A hydraulic rod 4 is fixedly installed in the middle of the top plate 3, an extrusion plate 5 is fixedly installed at the bottom end of the telescopic part of the hydraulic rod 4, a base plate 6 is fixedly connected to the middle of the top of the lower plate 1, a pressure sensor 9 is fixedly installed on the top of the base plate 6, and the model of the pressure sensor 9 can be LSZ-F03A. A positioning plate 10 is symmetrically installed above the base plate 6.

[0045] The hydraulic rod 4 is symmetrically arranged, and a mounting plate is fixedly connected to the bottom end of the telescopic part of the hydraulic rod 4. The extrusion plate 5 is fixedly connected to the mounting plate by mounting bolts to facilitate replacement of the extrusion plate 5 to adapt to the extrusion of the spring to be tested.

[0046] A limiting mechanism 7 is provided on the inner side of the two side plates 2, and the limiting mechanism 7 includes a fixing sleeve 71, which is installed on the outer side of the telescopic part of the hydraulic rod 4 on one side, and the internal thread of the fixing sleeve 71 is connected with a bolt 73, and one side of the fixing sleeve 71 is fixedly connected with a connecting plate 74, and a guide wheel 1 75 and a guide wheel 2 76 are fixedly installed on one side of the bottom of the top plate 3 in sequence, a steel rope 77 is fixedly connected to the top of the connecting plate 74, and a vertical rod 78 is symmetrically fixedly connected to one side of the top of the lower plate 1.

[0047] Screw holes 72 are evenly opened on the outside of the telescopic part of the hydraulic rod 4 on one side, and a bolt 73 is threadedly connected to the screw hole 72. The fixing sleeve 71 is fixed to the telescopic part of the hydraulic rod 4 on one side through the bolt 73, and there are no less than two steel ropes 77.

[0048] The outer side of the vertical rod 78 is slidably connected to the same horizontal plate 79, and the steel rope 77 passes around the guide wheel 1 75 and the guide wheel 2 76 and is fixedly connected to the horizontal plate 79. A pushing plate 711 is slidably installed on the side of the horizontal plate 79 close to the positioning plate 10. A storage groove 713 is provided on the side of the positioning plate 10 close to the horizontal plate 79. The interior of the storage groove 713 is rotatably connected to a measuring plate 714. An auxiliary spring 715 is fixedly installed on the inner wall of the storage groove 713, and the auxiliary spring 715 is fixedly connected to the measuring plate 714.

[0049] A sleeve 710 is fixedly connected to the bottom of the horizontal plate 79. The number of the sleeve 710 is the same as the vertical rod 78. The sleeve 710 is slidably connected to the vertical rod 78. Bolt 2 712 is symmetrically installed inside the horizontal plate 79. Bolt 2 712 is threadedly connected to the horizontal plate 79. The horizontal plate 79 abuts against the push plate 711.

[0050] The measuring plate 714 is rotatably connected to the receiving slot 713 , and the auxiliary springs 715 are symmetrically arranged, and there are no less than two auxiliary springs 715 .

[0051] A fixing block 716 is symmetrically fixedly connected to the outer side of the positioning plate 10 on one side, a cross bar 717 is fixedly connected to one side of the fixing block 716, and a limiting sleeve 718 is fixedly connected to the outer side of the positioning plate 10 on the other side. An adjusting rod 719 is slidably installed inside the cross bar 717, one end of the adjusting rod 719 is fixedly connected to a placement ring 720, and a hard rubber tube 722 is slidably connected inside the placement ring 720.

[0052] The cross bar 717 is slidably connected to the limiting sleeve 718 , and a limiting block is provided at one end of the cross bar 717 close to the limiting sleeve 718 , and the limiting sleeve 718 is located between the fixing block 716 and the limiting block.

[0053] The adjusting rod 719 is slidably connected to the cross bar 717. The adjusting rod 719 is evenly arranged at equal distances. The top of the cross bar 717 is threadedly connected with bolt three 721. The number of bolt three 721 is the same as that of the adjusting rod 719, and the positions correspond one to one. Bolt three 721 abuts against the adjusting rod 719.

[0054] Embodiment 1: Figure 1-Figure 8 As shown, a limit mechanism 7 is provided, and a qualified spring is first placed on the top of the pressure sensor 9. The pressure sensor 9 is connected to an external display device to display the pressure value. The second bolt 712 is loosened, and the push plate 711 is adjusted to press against the outer side of the positioning plate 10. Then, the measuring plate 714 is positioned by tightening the second bolt 712. The hydraulic rod 4 is started to drive the extrusion plate 5 to press down, so that the push plate 711 pushes the measuring plate 714 to flip and store it in a vertical state, and the pressure value of the pressure sensor 9 is recorded as a detection reference.

[0055] The spring to be tested is placed on the pressure sensor 9, and the spring to be tested is positioned by the moving mechanism 8. According to the outer size of the spring to be tested, the bolt three 721 is loosened, and the position of the adjusting rod 719 is moved separately, so that the adjusting rod 719 drives the placing ring 720 to move, and the placing ring 720 drives the hard rubber tube 722 to bend and adjust, so that the hard rubber tube 722 adapts to the outer side of the spring to be tested. Multiple groups of hard rubber tubes 722 can be set according to needs, thereby further limiting the spring to be tested, reducing the tilt of the spring to be tested during detection, and improving the detection effect.

[0056] When the pressure sensor 9 shows the same value as the reference value again, the state of the measuring plate 714 is observed. If the measuring plate 714 is not flipped to the numerical state, the spring to be tested is unqualified, which solves the problem that it is not convenient to perform auxiliary guidance on the spring to be tested during the subsequent pressure test of the spring, which may cause the spring to tilt and shrink, hinder the pressure test process, and affect the test results.

[0057] A moving mechanism 8 is arranged inside the base plate 6, and the moving mechanism 8 includes a step groove 81, which is opened at the top of the base plate 6, and an inner rod 83 is fixedly connected inside the step groove 81, and a step block 82 is fixedly connected to the bottom of the positioning plate 10, and the step block 82 is slidably connected to the inner rod 83, and the step block 82 is slidably connected to the step groove 81.

[0058] The step groove 81 is symmetrically opened, and the outer side of the base plate 6 is symmetrically opened with a side groove 84. The inside of the side groove 84 is slidably connected with a bolt four 85. The bolt four 85 is horizontally arranged and is threadedly connected to the step block 82.

[0059] Embodiment 2: Figure 9-10 As shown, a moving mechanism 8 is provided. When placing the spring to be tested, the positions of the step block 82 and the positioning plate 10 can be adjusted by loosening the outer bolt four 85 to release the pressure of the bolt four 85 on the base plate 6. The positioning plates 10 on both sides are pulled so that the two positioning plates 10 fit the outer sides of the spring to be tested. The positioning plates 10 drive the step block 82 to move, and the step block 82 slides on the inner rod 83. The step block 82 drives the bolt four 85 to slide in the side groove 84. At this time, the positioning plate 10 on one side drives the cross bar 717 to slide in the limit sleeve 718. After adjustment, the bolt four 85 is tightened so that the bolt four 85 is pressed against the outer side of the base plate 6, thereby positioning the step block 82 and the positioning plate 10, which is convenient for subsequent pressure detection of the spring to be tested.

[0060] Working principle: When using the device, first, Figure 1-Figure 10As shown, first place the qualified spring on the top of the pressure sensor 9, and the pressure sensor 9 is connected to an external display device to display the pressure value. The hydraulic rod 4 is started to drive the extrusion plate 5 to press down, so that the push plate 711 pushes the measuring plate 714 to flip and store it to a vertical state, and the pressure value of the pressure sensor 9 is recorded as a detection reference.

[0061] Place the spring to be tested on the pressure sensor 9, loosen the outer bolt four 85, pull the positioning plates 10 on both sides so that the two positioning plates 10 fit the outer sides of the spring to be tested. After adjustment, tighten the bolt four 85 so that the bolt four 85 is pressed against the outer side of the base plate 6, thereby positioning the step block 82 and the positioning plate 10.

[0062] According to the outer size of the spring to be tested, loosen bolt three 721 and move the position of the adjusting rod 719 alone, so that the adjusting rod 719 drives the placement ring 720 to move, and the placement ring 720 drives the hard rubber tube 722 to bend and adjust, so that the hard rubber tube 722 adapts to the outer side of the spring to be tested.

[0063] Start the hydraulic rod 4 to drive the extrusion plate 5 to descend until the extrusion plate 5 is in contact with the top of the spring to be tested, and then tighten the bolt 73 into the screw hole 72 at the corresponding position. At this time, the hydraulic rod 4 will also drive the connecting plate 74 to move. Continue to start the hydraulic rod 4 to descend, which can drive the cross plate 79 to rise. The vertical rod 78 assists the cross plate 79 to rise smoothly, and the push plate 711 rises to drive the measuring plate 714 to flip into the storage groove 713. Until the pressure sensor 9 displays the same value as the reference value again, observe the state of the measuring plate 714. If the measuring plate 714 has not flipped to the numerical state, the spring to be tested is unqualified.

[0064] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A closing pressure test device for a spring mechanism of a GIS circuit breaker, comprising a lower plate (1) and a pressure sensor (9), wherein the top of the lower plate (1) is symmetrically fixedly connected to a side plate (2), and the top ends of the two side plates (2) are fixedly connected to the same top plate (3); It is characterized in that Also includes: A hydraulic rod (4) is fixedly installed in the middle of the top plate (3), a squeeze plate (5) is fixedly installed at the bottom end of the telescopic part of the hydraulic rod (4), a base plate (6) is fixedly connected to the middle of the top of the lower plate (1), a limiting mechanism (7) is arranged on the inner sides of the two side plates (2), a moving mechanism (8) is arranged inside the base plate (6), the pressure sensor (9) is fixedly installed on the top of the base plate (6), and a positioning plate (10) is symmetrically installed above the base plate (6); The limiting mechanism (7) comprises a fixing sleeve (71), the fixing sleeve (71) being mounted on the outside of the telescopic portion of the hydraulic rod (4) on one side, the fixing sleeve (71) being internally threadedly connected with a bolt 1 (73), one side of the fixing sleeve (71) being fixedly connected with a connecting plate (74), one side of the bottom of the top plate (3) being fixedly mounted with a guide wheel 1 (75) and a guide wheel 2 (76) in sequence, the top of the connecting plate (74) being fixedly connected with a steel rope (77), and one side of the top of the lower plate (1) being symmetrically fixedly connected with a vertical rod (78); The outer side of the vertical rod (78) is slidably connected to the same horizontal plate (79), the steel rope (77) passes around the guide wheel 1 (75) and the guide wheel 2 (76) and is fixedly connected to the horizontal plate (79), a push plate (711) is slidably installed on the side of the horizontal plate (79) close to the positioning plate (10), and a receiving groove (713) is provided on the side of the positioning plate (10) close to the horizontal plate (79), the interior of the receiving groove (713) is rotatably connected to a measuring plate (714), an auxiliary spring (715) is fixedly installed on the inner wall of the receiving groove (713), and the auxiliary spring (715) is fixedly connected to the measuring plate (714); A fixing block (716) is symmetrically fixedly connected to the outer side of the positioning plate (10) on one side, a cross bar (717) is fixedly connected to one side of the fixing block (716), and a limiting sleeve (718) is fixedly connected to the outer side of the positioning plate (10) on the other side, an adjusting rod (719) is slidably installed inside the cross bar (717), one end of the adjusting rod (719) is fixedly connected to a placement ring (720), and a hard rubber tube (722) is slidably connected inside the placement ring (720).

2. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The hydraulic rod (4) is symmetrically arranged, the bottom end of the telescopic part of the hydraulic rod (4) is fixedly connected to a mounting plate, and the extrusion plate (5) is fixedly connected to the mounting plate via mounting bolts, so as to facilitate replacement of the extrusion plate (5) and thus adapt to the extrusion of the spring to be tested.

3. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: Screw holes (72) are evenly opened on the outer side of the telescopic part of the hydraulic rod (4) on one side, the bolt one (73) is threadedly connected to the screw hole (72), the fixing sleeve (71) is fixed to the telescopic part of the hydraulic rod (4) on one side through the bolt one (73), and the steel ropes (77) are not less than two.

4. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The bottom of the horizontal plate (79) is fixedly connected with a sleeve (710), the number of the sleeve (710) is the same as the vertical rod (78), the sleeve (710) is slidably connected to the vertical rod (78), the interior of the horizontal plate (79) is symmetrically installed with bolts (712) in the upper and lower parts, the bolts (712) are threadedly connected to the horizontal plate (79), and the horizontal plate (79) is in contact with the push plate (711).

5. The closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The measuring plate (714) is rotatably connected to the receiving groove (713), and the auxiliary springs (715) are symmetrically arranged, and there are no less than two auxiliary springs (715).

6. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The cross bar (717) is slidably connected to the limiting sleeve (718); a limiting block is arranged at one end of the cross bar (717) close to the limiting sleeve (718); and the limiting sleeve (718) is located between the fixing block (716) and the limiting block.

7. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The adjusting rod (719) is slidably connected to the cross bar (717), and the adjusting rod (719) is evenly arranged at equal distances. The top of the cross bar (717) is threadedly connected with a bolt three (721). The number of the bolt three (721) is the same as that of the adjusting rod (719), and the positions correspond one to one. The bolt three (721) is in contact with the adjusting rod (719).

8. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 1, characterized in that: The moving mechanism (8) comprises a step groove (81), the step groove (81) is opened on the top of the base plate (6), an inner rod (83) is fixedly connected inside the step groove (81), a step block (82) is fixedly connected to the bottom of the positioning plate (10), the step block (82) is slidably connected to the inner rod (83), and the step block (82) is slidably connected to the step groove (81).

9. A closing pressure test device for a GIS circuit breaker spring mechanism according to claim 8, characterized in that: The step groove (81) is symmetrically opened, and the outer side of the base plate (6) is symmetrically opened with a side groove (84). The inside of the side groove (84) is slidably connected with a bolt four (85), and the bolt four (85) is arranged horizontally and is threadedly connected to the step block (82).

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