CN220709187U - Electrical appliance performance detection mechanism - Google Patents

Abstract

The utility model discloses an electrical performance detection mechanism, which comprises a guide frame, wherein a sliding plate which moves linearly back and forth is arranged in the guide frame, a push rod is vertically matched with the guide frame in a sliding way, the upper end and the lower end of the push rod penetrate through the guide frame, an electrical performance detection assembly is arranged at the top of the push rod, a through hole is formed in the push rod in the moving direction of the sliding plate, the sliding plate penetrates through the through hole, an arc-shaped hole is formed in the sliding plate, the arc angle of the arc-shaped hole is smaller than 90 degrees, the starting point and the ending point of the arc-shaped hole are not at the same horizontal level, a guide column is radially arranged on the push rod, the guide column penetrates through the arc-shaped hole, a driving device for driving the sliding plate to move linearly is arranged on the guide frame, and the guide column always moves upwards or downwards along the arc-shaped hole in the linear moving process. Through the straight line round trip movement of slide, can make the guide post follow the arc hole and slide, and then realize going up and down of push rod to make electric connector and waiting to test point's grafting and break away from, realize waiting to test point's detection.

Description

Electrical appliance performance detection mechanism

Technical Field

The utility model relates to electrical performance detection, in particular to an electrical performance detection mechanism.

Background

After large-scale electrical equipment is processed, the electrical performance of the electrical equipment needs to be detected, the traditional method is to manually plug, but the plug efficiency is low, the plug stability is uncontrollable, so that the electrical performance detection efficiency of the electrical equipment is low, the accuracy is affected, the large-scale electrical equipment is heavy, the transportation, the overturning and the like are inconvenient, particularly, the electrical interfaces of the electrical equipment are arranged at the bottom of the large-scale electrical equipment, because the space is limited, the manual detection is difficult to realize by operators, and the inventor provides an electrical performance detection device of the large-scale electrical equipment and develops an electrical performance detection mechanism through long-term research.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an electrical appliance performance detection mechanism.

The aim of the utility model is achieved by the following technical scheme: the utility model provides an electrical property detection mechanism, including fixed mounting in the leading truck in the frame, install the slide of straight line back and forth movement in the leading truck, vertical sliding fit has the push rod on the leading truck, and the upper and lower both ends of push rod all pass the leading truck, electrical property detection subassembly is installed at the top of push rod, in the direction of slide removal, the perforation has been seted up on the push rod, the slide wears to establish in the perforation, the arc hole has been seted up on the slide, the arc angle of arc hole is less than 90, and the initial point and the termination point of arc hole are not in same level, radially install the guide post on the push rod, the guide post wears to establish in the arc hole, install drive slide rectilinear movement's drive arrangement on the leading truck, the guide post is ascending or descending along the arc hole all the time in the rectilinear movement in-process.

Optionally, the driving device comprises a cylinder, the rear end of the guide frame is provided with the cylinder, and the cylinder is connected with the sliding plate.

Optionally, the mounting panel is still installed in the frame, mounting panel fixed mounting is in one side of leading truck, installs first travel switch and second travel switch on the mounting panel, and when the push rod was located down stroke, the bottom of push rod contacted with first travel switch, and the push rod was located the time of upstroke, the front end and the second travel switch contact of slide, first travel switch and second travel switch all with cylinder electric connection, and control cylinder stop work.

Optionally, a guide groove is further formed in the bottom or the top of the guide frame, and the corresponding end portion of the sliding plate is slidably matched in the guide groove.

Optionally, a threaded seat is further installed on the frame, a threaded pull rod is in threaded fit with the threaded seat, the rear end of the threaded pull rod is rotatably installed on the pull plate, a sliding groove is formed in the pull plate, a pin inserted into the sliding groove is installed at the front end of the sliding plate, and the length of the sliding groove is greater than or equal to the linear movement distance of the sliding plate.

Optionally, the electrical property detection subassembly includes mount, sleeve, sliding cylinder and support section of thick bamboo, and the mount is installed in the frame, and the mount is located the top of leading truck, and sleeve fixed mounting is in the mount, and the top of push rod is provided with the footwall, and sliding cylinder installs on the footwall, and sliding cylinder sliding fit installs in the sleeve, and the top elasticity roof pressure of push rod supports a section of thick bamboo, supports a section of thick bamboo card in sliding cylinder, supports the top installation electric connector of section of thick bamboo.

Optionally, the top of push rod is seted up flutedly, and sliding fit has the jackshaft in the recess, and the jackshaft roof presses in the bottom center of supporting the section of thick bamboo, and the epaxial cover of jackis equipped with buffer spring, and buffer spring's one end top is in the bottom of supporting the section of thick bamboo, and buffer spring's the other end top is on the roof plate, and the bottom of jackshaft has the second buffering clearance with the tank bottom of recess under buffer spring's elastic force.

Optionally, the bottom center of the supporting cylinder is provided with a conical hole, the top of the top shaft is provided with a convex conical head, and the conical head is installed in the conical hole in a matched manner.

Optionally, the bottom of sliding cylinder is provided with radial inwards keeps off the ring, has seted up a plurality of insertion notch and a plurality of rotation stopping notch on the fender ring, and a plurality of insertion notch and a plurality of rotation stopping notch all evenly distributed are on same circumference, and stop the rotation stopping notch and lie in one side of inserting the notch, offered the dog that corresponds with the insertion notch on the lateral wall of supporting cylinder, first conical surface has been seted up to the bottom of keeping off the ring, the top of dog is provided with the second conical surface that corresponds with first conical surface, the dog inserts from the insertion notch, and rotates the supporting cylinder after, the dog is located the below of keeping off the ring.

Optionally, the top of the supporting cylinder is further radially arranged outwards and provided with a flange, a first gap is formed between the flange and the top of the sleeve, a screw hole is formed in a stop block below the rotation stopping notch, a through hole corresponding to the screw hole is formed in the flange, a rotation stopping screw is arranged in the through hole, and the bottom of the rotation stopping screw penetrates through the rotation stopping notch and is locked with the screw hole.

The utility model has the following advantages: according to the electrical performance detection mechanism, the guide post can slide along the arc-shaped hole through the linear back and forth movement of the sliding plate, so that the push rod can move upwards and downwards, the electric connector is connected with and separated from a to-be-detected point, and the to-be-detected point is detected.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of B-B of FIG. 2;

FIG. 5 is a schematic view of the installation of a support cylinder and a sliding cylinder;

FIG. 6 is a schematic view of a sliding cartridge;

FIG. 7 is a schematic view of the structure of the support cylinder;

FIG. 8 is an enlarged schematic view of FIG. 5C;

in the figure, 1-mounting plate, 2-slide plate, 3-guide frame, 4-guide groove, 5-cylinder, 6-arc hole, 7-guide column, 8-push rod, 9-first travel switch, 10-second travel switch, 11-screw seat, 12-screw pull rod, 13-pull plate, 14-slide groove, 15-pin, 16-top plate, 17-top shaft, 18-buffer spring, 19-fixing frame, 20-sleeve, 21-slide cylinder, 22-support cylinder, 23-first buffer gap, 24-electric connector, 25-perforation, 26-rotation stopping screw, 27-flange, 28-baffle ring, 29-insertion notch, 30-rotation stopping notch, 31-stop block, 32-conical hole, 33-second buffer gap, 34-first conical surface, 35-second conical surface.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the electrical performance detecting mechanism comprises a guide frame 3 fixedly installed on a frame, a sliding plate 2 moving linearly and back is installed in the guide frame 3, a push rod 8 is vertically matched with the guide frame 3 in a sliding way, the upper end and the lower end of the push rod 8 penetrate through the guide frame, an electrical performance detecting component is installed at the top of the push rod 8, a perforation 25 is formed on the push rod 8 in the moving direction of the sliding plate 2, the sliding plate 2 is penetrated in the perforation 25, an arc-shaped hole 6 is formed on the sliding plate 2, the arc-shaped angle of the arc-shaped hole 6 is smaller than 90 degrees, the starting point and the ending point of the arc-shaped hole are not at the same horizontal height, a guide post 7 is radially installed on the push rod 8, the guide post 7 penetrates into the arc-shaped hole 6, a driving device for driving the sliding plate 2 to move linearly is installed on the guide frame, and the sliding plate 2 moves linearly, the guide post 7 always goes up or down along the arc hole 6, in this embodiment, the driving device includes a cylinder 5, the rear end of the guide frame is provided with the cylinder 5, the cylinder 5 is connected with the slide plate 2, when the cylinder 5 pushes forward, the guide post 7 moves from the starting point to the ending point of the arc hole 6 when pushing the slide plate 2 forward, further, the starting point of the guide post 7 is located at the bottommost part of the arc hole 6, and the ending point of the guide post 7 is located at the topmost part of the arc hole 6, therefore, along with the movement of the guide post 7, the push rod 8 goes up, thereby the electric connector 24 is plugged with the point to be tested on the device to be tested, the electric performance detection of the device to be tested is completed, and when the cylinder 5 retreats, the slide plate 2 is pulled to move backward, thereby the guide post 7 moves from the ending point of the arc hole 6 to the starting point, thereby the push rod 8 goes down, the electrical connector 24 is separated from the device under test, and the device under test is removed to enable electrical performance detection of the next device under test.

In this embodiment, as shown in fig. 1, a mounting plate 1 is further mounted on the frame, the mounting plate 1 is fixedly mounted on one side of the guide frame 3, a first travel switch 9 and a second travel switch 10 are mounted on the mounting plate 1, when the push rod 8 is located at the lower travel, the bottom of the push rod 8 is in contact with the first travel switch 9, when the push rod 8 is located at the upper travel, the front end of the slide plate 2 is in contact with the second travel switch 10, the first travel switch 9 and the second travel switch 10 are both electrically connected with the cylinder 5, and the cylinder 5 is controlled to stop working, that is, after the cylinder 5 is started by an operator, the slide plate 2 moves forward, when the slide plate 2 is in contact with the second travel switch 10, the cylinder 5 is controlled to stop working, at this moment, the push rod 8 stops moving upward, preferably, at this moment, the push rod 8 is located at the upper travel, that is located at the end point of the arc-shaped hole 6, when the push rod 8 moves backward, and when the bottom of the push rod 8 is in contact with the first travel switch 9, the second travel switch 10 controls the push rod 5 to stop working, that the push rod 8 stops working, at this moment, at the lower travel point of the arc-shaped hole 7 is located at the push rod 8.

In this embodiment, as shown in fig. 4, the bottom or top of the guide frame 3 is further provided with a guide groove 4, and the corresponding end portion on the sliding plate 2 is slidably matched in the guide groove 4, further, the guide groove 4 is provided at the bottom of the guide frame 3, and the straightness of the linear movement of the sliding plate 2 can be ensured through the matching of the guide groove 4 and the guide frame 3, so that the stability of the vertical movement of the push rod 8 is ensured.

In this embodiment, as shown in fig. 1 and fig. 4, the rack is further provided with a thread seat 11, the thread seat 11 is internally threaded and matched with a thread pull rod 12, the rear end of the thread pull rod 12 is rotatably installed on a pull plate 13, preferably, the front end of the pull plate 13 is provided with a hole for installing the thread pull rod 12, the thread pull rod 12 passes through the hole, and a retraction pin is threaded at the end of the thread pull rod 12, further, a bearing can be installed in the hole, so that the coaxiality of rotation of a screw rod railing is ensured, a sliding groove 14 is formed in the pull plate 13, the front end of the slide plate 2 is provided with a pin 15 inserted into the sliding groove 14, the length of the sliding groove 14 is greater than or equal to the linear movement distance of the slide plate 2, therefore, the pull plate 13 cannot interfere with the linear movement of the slide plate 2, further, the pin 15 and the sliding groove 14 are in a matching relationship, besides a certain supporting function on the slide plate 2, the linear movement progress of the slide plate 2 can be ensured, in this embodiment, the linear movement of the pull plate 13 can drive a push rod 8, that is also the push rod 12 to be driven, namely, the push rod 12 can be driven to move down, and the push rod 12 can not move down, and the cylinder 12 can not move down, when the thread is required to be driven to move down, and the push rod 12 is not move down, and the thread cylinder 12 is in a cylinder 12, and the condition of the movement can not be in a normal condition is required to be moved, and the threaded when the movement is not is driven down the threaded, and the movement is moved.

In this embodiment, as shown in fig. 1, 3 and 4, the electrical performance detecting assembly includes a fixing frame 19, a sleeve 20, a sliding barrel 21 and a supporting barrel 22, the fixing frame 19 is installed on the frame, the fixing frame 19 is located above the guiding frame, the sleeve 20 is fixedly installed in the fixing frame 19, a top of the push rod 8 is provided with a top disc 16, the sliding barrel 21 is installed on the top disc 16, the sliding barrel 21 is installed in the sleeve 20 in a sliding fit manner, the top of the push rod 8 elastically pushes against the supporting barrel 22, the supporting barrel 22 is clamped in the sliding barrel 21, and the top of the supporting barrel 22 is provided with an electrical connector 24, so that the push rod 8 moves upwards, thereby pushing the sliding barrel 21 and the supporting barrel 22 upwards, and further enabling the sliding barrel 21 to slide relative to the sleeve 20, and the electrical connector 24 is plugged with a point to be detected of a device to be detected after the supporting barrel 22 moves upwards, and when the push rod 8 moves downwards, thereby driving the sliding barrel 21 to move downwards, and the supporting barrel 22 is clamped in the sliding barrel 21, thus the sliding barrel 21 moves downwards in the course of moving downwards, and the electrical connector 24 is further separated from the point to be detected.

In this embodiment, because the driving device adopts the air cylinder 5, the upward movement and downward movement of the push rod 8 are faster, in order to reduce the impact of the electrical connector 24 to be measured when in connection, as shown in fig. 3 and 4, the top of the push rod 8 is provided with a groove, the inside of the groove is slidably matched with the top shaft 17, the top shaft 17 is propped against the bottom center of the supporting cylinder 22, the top shaft 17 is sleeved with the buffer spring 18, one end of the buffer spring 18 is propped against the bottom of the supporting cylinder 22, the other end of the buffer spring 18 is propped against the top disc 16, and the bottom of the top shaft 17 has the second buffer gap 33 with the groove bottom of the groove under the action of the elastic force of the buffer spring 18, so that when the electrical connector 24 is just contacted with the to be measured, the buffer spring 18 is compressed, and then the top shaft 17 moves downwards relative to the push rod 8, that is, the upward movement speed of the push rod 8 is higher than the upward movement speed of the electrical connector 24, and the impact between the electrical connector 24 and the head to be measured is realized through the movement of the buffer spring 18 and the top shaft 17, thereby realizing the flexible connection between the electrical connector 24 and the electrical connector to be measured, and the electrical connector 24 is prevented from being damaged, and the life of the electrical connector to be further being damaged.

In this embodiment, as shown in fig. 5, a tapered hole 32 is formed in the bottom center of the support barrel 22, a protruding tapered head is provided at the top of the top shaft 17, the tapered head is mounted in the tapered hole 32 in a matching manner, and the support barrel 22 has an automatic alignment function through the matching of the tapered head and the tapered hole 32, so that the connection reliability of the electrical connector 24 and the head to be tested is ensured.

In this embodiment, as shown in fig. 6, a radially inward baffle ring 28 is disposed at the bottom of the sliding cylinder 21, a plurality of insertion notches 29 and a plurality of rotation stopping notches 30 are disposed on the baffle ring 28, the plurality of insertion notches 29 and the plurality of rotation stopping notches 30 are uniformly distributed on the same circumference, the rotation stopping notches 30 are located at one side of the insertion notches 29, as shown in fig. 7, a stop block 31 corresponding to the insertion notches 29 is disposed on the outer side wall of the supporting cylinder 22, as shown in fig. 7, a first conical surface 34 is disposed at the bottom of the baffle ring 28, as shown in fig. 8, a second conical surface 35 corresponding to the first conical surface 34 is disposed at the top of the stop block 31, the stop block 31 is inserted from the insertion notches 29, and after the supporting cylinder 22 is rotated, the stop block 31 is located under the baffle ring 28, when the supporting cylinder 22 is mounted, the stop block 31 is aligned with the insertion notches 29, and then the sliding cylinder 21 and the supporting cylinder 22 are inserted in opposite directions, so that the stop block 31 enters from the insertion notches 29, when the stop block 31 passes through the insertion notch 29, the support cylinder 22 is rotated, so that the stop block 31 is positioned below the stop ring 28, the support cylinder 22 cannot directly pull out the sliding cylinder 21, further, as shown in fig. 4, the top of the support cylinder 22 is further radially outwards provided with a flange 27, a screw hole is formed in the stop block 31 positioned below the rotation stop notch 30, a through hole corresponding to the screw hole is formed in the flange 27, a rotation stop screw 26 is installed in the through hole, the bottom of the rotation stop screw 26 passes through the rotation stop notch 30 and is locked with the screw hole, the rod part of the rotation stop screw 26 is positioned in the rotation stop notch 30, so that the rotation stop notch 30 limits the circumferential rotation of the rotation stop screw 26, and further limits the circumferential rotation of the support cylinder 22, when a device to be tested is larger, due to errors during the processing of the device to be tested, in this embodiment, the support cylinder 22 is allowed to have a certain rotation angle, but in this embodiment, the support cylinder 22 is allowed to have a rotation space of 6.5 degrees at maximum, so that under the guiding action of the front end cone of the electrical connector 24, the partial machining tolerance of the large component can be adapted, so that the electrical connector 24 can adapt to the to-be-measured point of the large component, and the plugging feasibility of the electrical connector 24 and the to-be-measured point is ensured.

In this embodiment, during the upward movement of the push rod 8, the second conical surface 35 and the first conical surface 34 cooperate with each other, so that the supporting cylinder 22 can be centered, and the conical hole 32 and the conical head can be automatically aligned, so that the reliability of the connection between the electrical connector 24 and the point to be tested is ensured.

In this embodiment, as shown in fig. 4, a first buffer gap 23 is formed between the flange 27 and the top of the sleeve 20, and a second buffer gap 33 is combined, so that the flexible contact between the electric connector and the to-be-measured point is further ensured, and the electric connector 24 is prevented from damaging the to-be-measured point.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (10)

1. Electrical apparatus performance detection mechanism, its characterized in that: including fixed mounting in the frame the link, install rectilinear back and forth movement's slide in the link, vertical sliding fit has the push rod on the link, just the link is all passed at the upper and lower both ends of push rod, electrical property detection subassembly is installed at the top of push rod on the slide direction of movement, the perforation has been seted up on the push rod, the slide wears to establish in the perforation, the arc hole has been seted up on the slide, the arc angle of arc hole is less than 90, just the initial point and the termination point of arc hole are not in same level, radially install the guide post on the push rod, the guide post wears to establish in the arc hole, install the drive on the link slide rectilinear movement's drive arrangement, the slide is at rectilinear movement in-process, the guide post is ascending or descending along the arc hole all the time.

2. The electrical performance testing mechanism of claim 1, wherein: the driving device comprises an air cylinder, wherein the air cylinder is arranged at the rear end of the guide frame, and the air cylinder is connected with the sliding plate.

3. The electrical performance testing mechanism of claim 2, wherein: the device is characterized in that the frame is also provided with a mounting plate, the mounting plate is fixedly mounted on one side of the guide frame, a first travel switch and a second travel switch are mounted on the mounting plate, when the push rod is located in the downward travel mode, the bottom of the push rod is in contact with the first travel switch, when the push rod is located in the upward travel mode, the front end of the sliding plate is in contact with the second travel switch, and the first travel switch and the second travel switch are electrically connected with the air cylinder and control the air cylinder to stop working.

4. The electrical performance testing mechanism of claim 1, wherein: the bottom or the top of the guide frame is also provided with a guide groove, and the corresponding end part of the sliding plate is in sliding fit in the guide groove.

5. The electrical performance detection mechanism according to any one of claims 1 to 4, wherein: the sliding plate is characterized in that a threaded seat is further arranged on the frame, a threaded pull rod is matched with the threaded seat in an internal thread mode, the rear end of the threaded pull rod is rotatably arranged on a pull plate, a sliding groove is formed in the pull plate, a pin inserted into the sliding groove is arranged at the front end of the sliding plate, and the length of the sliding groove is larger than or equal to the linear moving distance of the sliding plate.

6. The electrical performance testing mechanism of claim 1, wherein: the electric performance detection assembly comprises a fixing frame, a sleeve, a sliding cylinder and a supporting cylinder, wherein the fixing frame is arranged on the machine frame, the fixing frame is located above the guide frame, the sleeve is fixedly arranged in the fixing frame, a top of the push rod is provided with a top disc, the sliding cylinder is arranged on the top disc, the sliding cylinder is arranged in the sleeve in a sliding fit manner, the top end of the push rod is elastically propped against the supporting cylinder, the supporting cylinder is clamped in the sliding cylinder, and an electric connector is arranged at the top of the supporting cylinder.

7. The electrical performance testing mechanism of claim 6, wherein: the top of push rod is seted up flutedly, sliding fit has the jackshaft in the recess, the jackshaft roof presses the bottom center of support section of thick bamboo, the epaxial cover of jacking is equipped with buffer spring, buffer spring's one end roof is in support section of thick bamboo's bottom, buffer spring's the other end roof is in on the roof plate, just the bottom of jackshaft under buffer spring's elastic force with the tank bottom of recess has the second buffering clearance.

8. The electrical performance testing mechanism of claim 7, wherein: the bottom center of the supporting cylinder is provided with a conical hole, the top of the top shaft is provided with a raised conical head, and the conical head is installed in the conical hole in a matched mode.

9. The electrical performance detection mechanism according to any one of claims 6 to 8, wherein: the bottom of a sliding cylinder is provided with a radial inward baffle ring, a plurality of insertion notches and a plurality of rotation stopping notches are formed in the baffle ring, the insertion notches and the rotation stopping notches are uniformly distributed on the same circumference, the rotation stopping notches are located on one side of the insertion notches, a stop block corresponding to the insertion notches is formed in the outer side wall of the supporting cylinder, a first conical surface is formed in the bottom of the baffle ring, a second conical surface corresponding to the first conical surface is arranged at the top of the stop block, the stop block is inserted from the insertion notches and rotates after the supporting cylinder is supported, and the stop block is located below the baffle ring.

10. The electrical performance testing mechanism of claim 9, wherein: the top of the supporting cylinder is further radially outwards provided with a flange, a first gap is reserved between the flange and the top of the sleeve, a screw hole is formed in a stop block below the rotation stopping notch, a through hole corresponding to the screw hole is formed in the flange, a rotation stopping screw is arranged in the through hole, and the bottom of the rotation stopping screw penetrates through the rotation stopping notch and is locked with the screw hole.