Nuclear-grade pressure switch test equipment and test method

Abstract

The invention relates to the technical field of nuclear-grade pressure switch testing equipment, in particular to nuclear-grade pressure switch testing equipment and a testing method.The nuclear-grade pressure switch testing equipment comprises a testing base, a strip-shaped through hole is formed in one side of the testing base in the length direction, a bearing through hole is formed in the middle of the strip-shaped through hole, and a space is provided for deformation of a detection piece in the subsequent detection process; the stable detection process is ensured, and a penetrating through hole is formed in one side of the strip-shaped through hole in the test base; the limiting ring is fixedly installed at the penetrating through hole in the testing base, and two sets of supporting rods fixedly connected with the top end of the testing base are fixedly installed at the bottom end of the limiting ring; and the test rotating plate is rotationally arranged on the inner side of the limiting ring, and a supporting table is fixedly installed on one side of the top end of the test base. In the actual use process, the service life and the bearing capacity can be effectively tested and detected, the overall detection principle is easy to understand, operation is convenient, the result is visual, and counting is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear-grade pressure switch testing equipment, and in particular to nuclear-grade pressure switch testing equipment and a testing method. Background Art

[0002] Nuclear-grade pressure switches are key equipment used to monitor and control pressure changes in nuclear power plant systems. They are mainly used to ensure the safe operation of nuclear power plants and play a vital role in many key links such as cooling systems and reactor protection systems. Nuclear-grade pressure switches usually adopt two forms: diaphragm-type transmitters and leak-free piston-type sensors. When the pressure in the system changes, the pressure acts on the sensing elements such as the diaphragm or piston, causing them to deform. This deformation is transmitted to the micro switch through a mechanical linkage mechanism, thereby triggering or disconnecting the circuit to achieve pressure monitoring and control.

[0003] When the diaphragm type transmitter is actually used, the quality of the diaphragm needs to be effectively tested, and its service life and limit load capacity need to be tested to ensure that it can meet the high-pressure use environment. However, the test of the service life of the diaphragm is a long and tedious operation. Once errors are made in counting and operation, it is easy to cause large errors and affect the measurement results. For this reason, we propose a nuclear-grade pressure switch test equipment and test method. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a nuclear-grade pressure switch testing device and a testing method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A nuclear-grade pressure switch testing device, comprising: A test base, one side of the test base is provided with a strip through hole along the length direction, and a bearing through hole is provided in the middle of the strip through hole to provide space for the deformation of the test piece during the subsequent testing process and ensure the stable testing process. A through hole is provided on one side of the strip through hole on the test base; A limit ring is fixedly mounted at a through hole on the test base, and two sets of support rods fixedly connected to the top of the test base are fixedly mounted at the bottom of the limit ring; The test rotating plate is rotatably arranged on the inner side of the limit ring, and a support platform is fixedly installed on one side of the top of the test base, and a driving component for controlling the rotation of the test rotating plate is fixedly installed on the top of one side of the support platform to provide a periodic motion operation for the test process, and a test mechanism for performing the test is fixedly installed on the other side of the test rotating plate, and a buzzer alarm electrically connected to the test mechanism is also installed on the top of the support platform; The test mechanism is equipped with test components for load-bearing capacity testing and service life testing; It also includes a counting component, which is arranged on the top of the test base and is linked with the driving component to record the frequency during the service life detection process.

[0006] As a preferred technical solution of the present application, the testing mechanism includes a detection component for performing detection and a positioning component for assisting the detection process; The detection assembly includes two groups of fixed plates, which are symmetrically arranged on the surface of the test rotating plate. Two groups of guide through holes are opened on the fixed plates, and a sliding table and a through-tube are respectively arranged between the two groups of fixed plates at the two groups of guide through holes. A trigger for triggering is arranged at the top of the sliding table. The trigger is electrically connected to the driving assembly to ensure the detection process. Two groups of locking screws II are screwed on both sides of the sliding table and pass through the guide through holes on the fixed plates corresponding to the sliding table. The position of the sliding table is locked by locking the locking screws II. A test assembly for triggering during the detection process is provided on the inner side of the through-tube, and the test assembly includes a trigger rod, one end of which is bent to contact with the trigger, and the actual test condition is judged by the contact and triggering condition between the bent end of the trigger rod and the trigger; Two sets of locking screws I are screwed on both sides of the penetration sleeve, and the locking screws I are passed through the corresponding guide holes on the fixing plate. The position of the penetration sleeve is locked and adjusted according to the locking condition of the locking screws I.

[0007] As a preferred technical solution of the present application, two sets of anti-drop rings are provided on the outside of the trigger rod, and the anti-drop rings are provided on both sides of the penetration sleeve, so as to ensure that the trigger rod does not fall off during the test operation and ensure the stable progress of the detection process; A counterweight is installed on the anti-drop ring outside the trigger rod. The mass of the entire trigger rod is adjusted by installing the counterweight, so as to stably carry out the detection process of the ultimate load-bearing capacity of the detection member.

[0008] As a preferred technical solution of the present application, the clamping assembly includes a clamping seat mounted on two sets of fixing plates, and a positioning screw for locking is passed through the clamping seat; A telescopic rod is passed through the middle of the clamping seat, one end of the telescopic rod is connected to a clamping block, and a spring is sleeved on the outer side of the telescopic rod. A clamping slot corresponding to the clamping block is opened on the upper side of the trigger rod. During the load-bearing capacity test, the clamping state of the clamping block and the trigger rod changes, thereby effectively simulating the effective test of the load-bearing capacity of the elastic element inside the pressure switch under different pressures in the vertical state.

[0009] As a preferred technical solution of the present application, the driving component includes a driving motor fixedly mounted on a support platform, and the output shaft of the driving motor is coaxially connected with a synchronous rotating plate, and the synchronous rotating plate is coaxially connected with the test rotating plate. Therefore, through the setting of the driving motor, the test rotating plate can be effectively controlled to drive the test mechanism to rotate, and the test mechanism can be regulated to perform periodic operations, so as to facilitate the periodic triggering of the elastic element below by the test component on the test mechanism, thereby realizing effective testing of the service life.

[0010] As a preferred technical solution of the present application, a single set of meshing teeth is provided on the synchronous rotating plate to cooperate with the counting component to effectively calculate the triggering frequency during the service life detection process; The counting assembly includes a mounting seat, which is mounted on the top of the test base by mounting screws, and a collar is fixedly connected to the top of the mounting seat, and a connecting shaft is passed through the inner side of the collar, and the two ends of the connecting shaft are coaxially connected with a meshing gear and a linkage rotating plate, respectively, and the number of teeth of the meshing gears are marked and distinguished by numbers, and the linkage rotating plate has the same structure as the synchronous rotating plate, and the meshing gear, the linkage rotating plate and the synchronous rotating plate have the same diameters; Several groups of staggered counting components are provided on the top of the test base, among which the meshing gears on the first group of counting components cooperate with the synchronous rotating plate, and the meshing gears on the subsequent counting components cooperate with the linkage rotating plate on the previous group of counting components. Through the continuous conversion of the number of rotations, in the actual counting process, the power exponential counting is realized through the staggered coordination of the counting components, which facilitates stable and effective counting in the detection process.

[0011] As a preferred technical solution of the present application, the top of the test base is provided with guide grooves on both sides of the bearing through hole, and a clamping seat is slidably connected to the guide grooves, and a locking screw that contacts the top of the test base is threaded through the bottom end of the clamping seat to achieve position locking of the clamping seat, so as to effectively ensure the clamping and contact of the elastic element; One end of the clamping seat is also threaded with an interference screw to facilitate clamping of the sheet-like elastic element, ensure stable clamping, and facilitate the effective implementation of the detection process.

[0012] A method for testing a nuclear-grade pressure switch test device comprises the following steps: Step S1, firstly place the elastic element of the pressure switch to be tested on the test base, and fix it by means of a clamping seat; Step S2, service life test: the trigger rod is naturally dropped down to be in a state of natural contact with the elastic element, and then the position of the sliding table is adjusted so that the trigger is closer to the elastic element relative to the bent end of the trigger rod, and the two do not contact each other. At this time, the position of the penetration sleeve and the sliding table is locked, and then the driving motor is started to realize the overall rotation of the test rotating plate. The test rotating plate drives the test mechanism to rotate as a whole during the rotation process. During the rotation, the trigger rod reciprocates relative to the fixed plate under the action of gravity, thereby simulating the repeated impact state of the elastic element in the actual use environment. When the elastic element below is deformed due to long-term impact, the position of the trigger rod will sink, and the bent end will contact the trigger accordingly. At this time, the driving motor in the driving assembly is controlled to stop working, thereby completing the entire service life detection process; Step S3, counting: by counting the counting components during the service life detection process, the actual service life can be intuitively obtained to achieve the purpose of counting. Due to the staggered connection relationship of the counting components and the setting of the synchronous rotating plate, during the actual counting process, the synchronous rotating plate and the test rotating plate drive the test mechanism to rotate once. At this time, the adjacent counting components rotate by the amplitude of a single gear due to the meshing relationship. During the calculation process, the meshing gears in the latter group of counting components rotate one circle, which represents the number of rotations of the meshing gears corresponding to the number of teeth of the meshing gears in the former group of counting components. Therefore, during the counting process, the actual counting is more intuitive and simple, so that the service life of the corresponding elastic element can be effectively obtained. The specific counting is that the meshing gears on the subsequent counting components and the gear numbers meshing with the linkage rotating plate or the synchronous rotating plate on the former group of counting components represent the number of rotations of the former group of gears. The actual counting results can be effectively and intuitively obtained by accumulating the calculations in sequence. Step S4, load-bearing capacity detection: a counterweight is set on the trigger rod to simulate the weight change of the trigger rod, and the position relationship between the trigger and the bent end of the trigger rod is kept consistent with the position relationship in the service life test, and then the trigger rod is lifted so that it is clamped by the upper component of the clamping component, and then the telescopic rod is lifted and the weighted trigger rod falls freely to impact the elastic element below, and the weight of the counterweight is repeatedly adjusted until the bent end of the trigger rod contacts the trigger. At this time, the buzzer alarm receives the signal and alarms, thereby stopping the test, and then the impact force generated by the weighted trigger rod on the elastic element can be effectively obtained to effectively detect the product quality.

[0013] The beneficial effects of the present invention are: 1. Through the setting of the test components on the test turntable and the test mechanism, the service life detection process of the elastic element in the pressure switch is effectively realized, and the actual service life is displayed in an intuitive form. With the help of the counting component, the number of touches during the service life detection process is effectively and accurately counted, making the display of the test process and results intuitive and convenient; 2. Through the setting of the detection component on the test mechanism, the positioning component and the counterweight component, the impact force of the elastic element can be effectively adjusted during the bearing capacity test, so as to effectively test the maximum load-bearing capacity, and then the maximum bearing capacity of the elastic element can be effectively obtained to determine its actual use environment.

[0014] In summary, the present application can effectively test the service life and load-bearing capacity during actual use. The overall testing principle is easy to understand, the operation is convenient, the results are intuitive, and the counting is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the back structure of the present invention; Figure 3 for Figure 1 The enlarged structural diagram at A in the middle; Figure 4 A schematic diagram of the structure of the test transfer plate and the test mechanism proposed by the present invention; Figure 5 A schematic diagram of the structure of the testing mechanism proposed by the present invention; Figure 6 A partial structural schematic diagram of the testing mechanism proposed by the present invention; Figure 7 A schematic diagram of the structure of the trigger rod proposed by the present invention; Figure 8 This is a schematic diagram of the structure of the locking assembly proposed by the present invention; Fig. 9 A schematic diagram of the structure of the driving assembly proposed by the present invention; Fig.10 This is a schematic diagram of the structure of the counting component proposed by the present invention.

[0016] In the figure: 1. test base; 2. limit ring; 3. test turntable; 4. test mechanism; 41. detection component; 411. fixed plate; 412. sliding table; 413. trigger; 414. trigger rod; 415. threading sleeve; 416. counterweight; 417. anti-slip ring; 418. locking screw I; 419. locking screw II; 42. clamping component; 421. clamping seat; 422. telescopic rod; 423. spring; 424. clamping block; 425. positioning screw; 5. counting component; 51. mounting seat; 52. meshing gear; 53. collar; 54. linkage turntable; 55. connecting shaft; 6. support table; 7. clamping seat; 71. locking screw; 72. interference screw; 8. synchronous turntable; 9. driving motor; 10. buzzer alarm. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-Figure 10 , a nuclear-grade pressure switch testing device, comprising: A test base 1, a strip through hole is opened on one side of the test base 1 along the length direction, and a bearing through hole is opened in the middle of the strip through hole to provide space for the deformation of the test piece during the subsequent testing process to ensure the stable testing process. A through hole is opened on one side of the strip through hole on the test base 1; The limiting ring 2 is fixedly mounted at the through hole on the test base 1, and two sets of support rods fixedly connected to the top of the test base 1 are fixedly mounted at the bottom of the limiting ring 2; The test rotating plate 3 is rotatably arranged on the inner side of the limit ring 2, and a support platform 6 is fixedly installed on one side of the top of the test base 1, and a driving component for controlling the rotation of the test rotating plate 3 is fixedly installed on the top of one side of the support platform 6 to provide a periodic motion operation for the test process, and a test mechanism 4 for testing is fixedly installed on the other side of the test rotating plate 3, and a buzzer alarm 10 electrically connected to the test mechanism 4 is also installed on the top of the support platform 6; The testing mechanism 4 is provided with a test assembly for carrying capacity testing and service life testing; It also includes a counting component 5, which is arranged at the top of the test base 1 and is linked with the driving component to record the frequency during the service life detection process; The driving assembly includes a driving motor 9 fixedly mounted on the supporting platform 6, and the output shaft of the driving motor 9 is coaxially connected with a synchronous rotating plate 8, and the synchronous rotating plate 8 is coaxially connected with the test rotating plate 3, so that through the setting of the driving motor 9, the test rotating plate 3 is effectively controlled to drive the test mechanism 4 to perform a rotation operation, and the test mechanism 4 is regulated to perform a periodic operation, which facilitates the periodic triggering of the elastic element below by the test assembly on the test mechanism 4, and realizes the effective test of the service life; The top of the test base 1 is provided with guide grooves on both sides of the bearing through hole, and a clamping seat 7 is slidably connected to the guide grooves. The bottom end of the clamping seat 7 is threaded with a locking screw 71 that contacts the top of the test base 1, which is used to achieve position locking of the clamping seat 7, and effectively ensure the clamping and contact of the elastic element; One end of the holder 7 is also threaded with a resisting screw 72 to facilitate clamping of the sheet-like elastic element, ensure stable clamping, and facilitate the effective implementation of the detection process.

[0019] Reference Figure 5-Figure 6 , the testing mechanism 4 includes a testing component 41 for testing and a positioning component 42 for assisting the testing process; The detection assembly 41 includes two groups of fixed plates 411, which are symmetrically arranged on the surface of the test rotating plate 3. Two groups of guide through holes are opened on the fixed plates 411, and a sliding platform 412 and a penetration sleeve 415 are respectively arranged between the two groups of fixed plates 411 at the two groups of guide through holes. A trigger 413 for triggering is arranged at the top of the sliding platform 412. The trigger 413 is electrically connected to the driving assembly to ensure the detection process. Two groups of locking screws II 419 that penetrate the guide through holes on the fixed plates 411 corresponding to the sliding platform 412 are screwed on both sides of the sliding platform 412. The position of the sliding platform 412 is locked by locking the locking screws II 419. A test assembly for triggering during the detection process is provided inside the through-tube 415. The test assembly includes a trigger rod 414. One end of the trigger rod 414 is bent to contact the trigger 413. The actual test condition is determined by the contact and triggering condition between the bent end of the trigger rod 414 and the trigger 413. Two sets of locking screws I418 are screwed on both sides of the penetration sleeve 415, and the locking screws I418 pass through the corresponding guide holes on the fixing plate 411. The position of the penetration sleeve 415 is locked and adjusted by the locking condition of the locking screws I418.

[0020] Reference Figure 7-Figure 8 Two sets of anti-drop rings 417 are provided on the outside of the trigger rod 414, and the anti-drop rings 417 are provided on both sides of the through-tube 415, so as to ensure that the trigger rod 414 does not drop off during the test operation, thereby ensuring the stable progress of the test process; A counterweight 416 is installed on the outer side of the trigger rod 414 on the anti-slip ring 417. By installing the counterweight 416, the mass of the entire trigger rod 414 is adjusted to stably carry out the detection process of the ultimate load-bearing capacity of the detection member.

[0021] The clamping assembly 42 includes a clamping seat 421 mounted on two sets of fixing plates 411, and a positioning screw 425 for locking is penetrated through the clamping seat 421; A telescopic rod 422 is passed through the middle of the clamping seat 421, one end of the telescopic rod 422 is connected to a clamping block 424, and a spring 423 is sleeved on the outer side of the telescopic rod 422. A clamping slot corresponding to the clamping block 424 is opened on the upper side of the trigger rod 414. During the load-bearing capacity detection, the clamping state of the clamping block 424 and the trigger rod 414 changes, thereby effectively simulating the effective detection of the load-bearing capacity of the elastic element inside the pressure switch under different pressures in the vertical state.

[0022] Reference Figure 9-10 , a single set of meshing teeth is provided on the synchronous rotating plate 8, which is used to cooperate with the counting component 5 to effectively calculate the triggering frequency during the service life detection process; The counting assembly 5 includes a mounting seat 51, which is mounted on the top of the test base 1 by mounting screws. A collar 53 is fixedly connected to the top of the mounting seat 51. A connecting shaft 55 is passed through the inner side of the collar 53. The two ends of the connecting shaft 55 are coaxially connected to a meshing gear 52 and a linkage rotating plate 54, respectively. The number of teeth of the meshing gear 52 is marked and distinguished by numbers. The linkage rotating plate 54 has the same structure as the synchronous rotating plate 8, and the meshing gear 52, the linkage rotating plate 54 and the synchronous rotating plate 8 have the same diameters. A plurality of groups of staggered counting components 5 are provided at the top of the test base 1, wherein the meshing gears 52 on the first group of counting components 5 cooperate with the synchronous rotating plate 8, and the meshing gears 52 on the subsequent counting components 5 cooperate with the linkage rotating plate 54 on the previous group of counting components 5. Through the continuous conversion of the number of rotations, in the actual counting process, the staggered counting components 5 are used to realize power exponential counting, which facilitates stable and effective counting in the detection process.

[0023] A method for testing a nuclear-grade pressure switch test device comprises the following steps: Step S1, firstly place the pressure switch elastic element to be tested on the test base 1, and fix it by means of the clamping base 7; Step S2, service life test: the trigger rod 414 is naturally dropped down to be in a state of natural contact with the elastic element, and then the position of the sliding platform 412 is adjusted so that the trigger 413 is closer to the elastic element relative to the bent end of the trigger rod 414, and the two do not contact each other. At this time, the position of the penetration sleeve 415 and the sliding platform 412 is locked, and then the driving motor 9 is started to realize the overall rotation of the test rotating plate 3. The test rotating plate 3 drives the testing mechanism 4 to rotate as a whole during the rotation process. During the rotation, the trigger rod 414 reciprocates relative to the fixed plate 411 under the action of gravity, thereby simulating the repeated impact state of the elastic element in the actual use environment. When the elastic element below is deformed due to long-term impact, the position of the trigger rod 414 will sink, and the bent end will contact the trigger 413 accordingly. At this time, the driving motor 9 in the driving assembly is controlled to stop working, thereby completing the entire service life detection process; Step S3, counting: by counting the counting components 5 during the service life detection process, the actual service life can be intuitively obtained to achieve the purpose of counting. Due to the staggered connection relationship of the counting components 5 and the setting of the synchronous rotating plate 8, during the actual counting process, the synchronous rotating plate 8 and the test rotating plate 3 drive the test mechanism 4 to rotate once. At this time, the adjacent counting components 5 rotate by the amplitude of a single gear due to the meshing relationship. During the calculation process, the meshing gear 52 in the latter group of counting components 5 rotates one circle, which represents the number of rotations of the meshing gear 52 corresponding to the number of teeth of the meshing gear 52 in the former group of counting components 5. Therefore, during the counting process, the actual counting is more intuitive and simple, so that the service life of the corresponding elastic element can be effectively obtained. The specific counting is that the meshing gear 52 on the subsequent counting component 5 and the gear number meshing with the linkage rotating plate 54 or the synchronous rotating plate 8 on the former group of counting components 5 represent the number of rotations of the former group of gears. The actual counting result can be effectively and intuitively obtained by accumulating the calculation in sequence; Step S4, load-bearing capacity detection: a counterweight 416 is set on the trigger rod 414 to simulate the weight change of the trigger rod 414, and the position relationship between the trigger 413 and the bent end of the trigger rod 414 is kept consistent with the position relationship in the service life test, and then the trigger rod 414 is lifted up so that it is clamped by the upper component of the clamping component 42, and then the telescopic rod 422 is pulled up, and the weighted trigger rod 414 falls freely to impact the elastic element below, and the weight of the counterweight 416 is repeatedly adjusted until the bent end of the trigger rod 414 contacts the trigger 413. At this time, the buzzer alarm 10 receives the signal and alarms, thereby stopping the test, and then the impact force generated by the weighted trigger rod 414 on the elastic element can be effectively obtained to effectively detect the product quality.

[0024] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nuclear-grade pressure switch testing device, characterized in that: include: A test base (1), wherein a strip-shaped through hole is provided on one side of the test base (1) along the length direction, and a bearing through hole is provided in the middle of the strip-shaped through hole to provide space for deformation of the test piece during the subsequent testing process, thereby ensuring that the testing process is carried out stably, and a through hole is provided on one side of the strip-shaped through hole on the test base (1); A limit ring (2) is fixedly mounted at a through hole on the test base (1), and two groups of support rods fixedly connected to the top of the test base (1) are fixedly mounted at the bottom of the limit ring (2); A test rotating plate (3) is rotatably arranged on the inner side of the limit ring (2), and a support platform (6) is fixedly installed on one side of the top of the test base (1); a driving component for controlling the rotation of the test rotating plate (3) is fixedly installed on the top of one side of the support platform (6) to provide a periodic motion operation for the test process; a test mechanism (4) for performing the test is fixedly installed on the other side of the test rotating plate (3); a buzzer alarm (10) electrically connected to the test mechanism (4) is also installed on the top of the support platform (6); The testing mechanism (4) is provided with a test component for carrying capacity testing and service life testing; It also includes a counting component (5), which is arranged on the top of the test base (1) and is linked with the driving component to record the frequency during the service life detection process.

2. A nuclear-grade pressure switch testing device according to claim 1, characterized in that: The testing mechanism (4) comprises a testing component (41) for performing testing and a positioning component (42) for assisting the testing process; The detection assembly (41) comprises two groups of fixing plates (411), the fixing plates (411) are symmetrically arranged on the surface of the test rotating plate (3), two groups of guide through holes are opened on the fixing plates (411), and a sliding platform (412) and a through-tube (415) are respectively arranged between the two groups of fixing plates (411) at the two groups of guide through holes, a trigger (413) for triggering is arranged at the top of the sliding platform (412), the trigger (413) is electrically connected to the driving assembly, and two groups of locking screws II (419) that penetrate through the guide through holes on the fixing plates (411) corresponding to the sliding platform (412) are screwed on both sides of the sliding platform (412); A test assembly for triggering during the detection process is provided on the inner side of the through-tube (415), the test assembly comprising a trigger rod (414), one end of the trigger rod (414) being bent; Two sets of locking screws I (418) are screwed on both sides of the penetration sleeve (415), and the locking screws I (418) are passed through corresponding guide through holes on the fixing plate (411).

3. A nuclear-grade pressure switch testing device according to claim 2, characterized in that: Two sets of anti-slip rings (417) are provided on the outer side of the trigger rod (414), and the anti-slip rings (417) are provided on both sides of the penetration sleeve (415); A counterweight (416) is mounted on the outer side of the trigger rod (414) on the anti-slip ring (417).

4. The nuclear-grade pressure switch testing equipment according to claim 2, characterized in that: The clamping assembly (42) comprises a clamping seat (421) mounted on two sets of fixing plates (411), and a positioning screw (425) for locking is provided on the clamping seat (421); A telescopic rod (422) is inserted through the middle of the clamping seat (421), one end of the telescopic rod (422) is connected to a clamping block (424), a spring (423) is sleeved on the outer side of the telescopic rod (422), and a clamping opening corresponding to the clamping block (424) is opened on the upper side of the trigger rod (414).

5. The nuclear-grade pressure switch testing equipment according to claim 1, characterized in that: The driving assembly comprises a driving motor (9) fixedly mounted on a support platform (6); an output shaft of the driving motor (9) is coaxially connected to a synchronous rotating plate (8); and the synchronous rotating plate (8) is coaxially connected to the test rotating plate (3).

6. The nuclear-grade pressure switch testing equipment according to claim 5, characterized in that: The synchronous rotating plate (8) is provided with a single set of meshing teeth; The counting assembly (5) comprises a mounting seat (51), the mounting seat (51) being mounted on the top of the test base (1) by means of mounting screws, the top of the mounting seat (51) being fixedly connected with a collar (53), the inner side of the collar (53) being provided with a connecting shaft (55), the two ends of the connecting shaft (55) being coaxially connected with a meshing gear (52) and a linkage rotating plate (54), the number of teeth of the meshing gear (52) being marked and distinguished by numbers, the linkage rotating plate (54) and the synchronous rotating plate (8) having the same structure, and the meshing gear (52), the linkage rotating plate (54) and the synchronous rotating plate (8) having the same diameter; A plurality of groups of staggered counting components (5) are provided at the top of the test base (1), wherein the meshing gears (52) on the first group of counting components (5) cooperate with the synchronous rotating plate (8), and the meshing gears (52) on the subsequent counting components (5) cooperate with the linkage rotating plate (54) on the previous group of counting components (5). Through the continuous conversion of the number of rotations, in the actual counting process, the staggered counting components (5) are arranged in coordination to achieve power exponential counting.

7. The nuclear-grade pressure switch testing equipment according to claim 1, characterized in that: The top of the test base (1) is provided with guide grooves on both sides of the bearing through hole, and a clamping seat (7) is slidably connected to the guide grooves, and a locking screw (71) is threadedly penetrated at the bottom end of the clamping seat (7) and abuts against the top of the test base (1); One end of the holder (7) is also threadedly provided with an interference screw (72).

8. A method for testing a nuclear-grade pressure switch testing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, firstly place the elastic element of the pressure switch to be tested on the test base (1), and fix it by means of the clamping base (7); Step S2, service life test: the trigger rod (414) is naturally dropped to a state of natural contact with the elastic element, and then the position of the sliding platform (412) is adjusted so that the trigger (413) is closer to the elastic element relative to the bent end of the trigger rod (414) and the two do not contact each other, the position of the penetration sleeve (415) and the sliding platform (412) is locked, and the drive motor (9) is started to realize the overall rotation of the test rotating plate (3). During the rotation process, the test rotating plate (3) drives the test mechanism (4) to rotate as a whole, and the trigger rod (414) reciprocates relative to the fixed plate (411) under the action of gravity, thereby simulating the repeated impact state of the elastic element in the actual use environment, until the bent end of the trigger rod (414) contacts the trigger (413), thereby completing the entire service life detection process; Step S3, counting: by counting the times of the counting component (5) during the service life detection process, the actual service life can be intuitively obtained, thereby achieving the purpose of counting times; Step S4, load-bearing capacity test: a counterweight (416) is mounted on the trigger rod (414) to simulate the weight change of the trigger rod (414), and the positional relationship between the trigger (413) and the bent end of the trigger rod (414) is kept consistent with the positional relationship in the service life test. Then, with the control of the locking assembly (42), the weighted trigger rod (414) is allowed to fall freely to impact the elastic element below. The weight of the counterweight (416) is repeatedly adjusted, and the load-bearing capacity is tested in conjunction with the buzzer alarm (10).

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