Mounting structure and transformer acoustic detection device

Abstract

The utility model relates to the technical field of distribution transformer on-line monitoring, and discloses a mounting structure and a transformer acoustic detection device.The mounting structure comprises a mounting unit, the mounting unit comprises a bearing block, a first limiting assembly and a second limiting assembly, and the first limiting assembly and the second limiting assembly are installed in the two sides of the bearing block respectively; the first limiting assembly and the second limiting assembly are located on the same center shaft. The beneficial effects of the utility model are that through the arrangement of the bearing block, the device can be ensured to carry out omnibearing detection on the transformer, through the arrangement of the first limiting assembly and the second limiting assembly, the installation and disassembly of the acoustic detector can be greatly facilitated, and meanwhile, the angle of the acoustic detector can be changed, so that the detection accuracy is improved. Therefore, the whole transformer can be covered; through cooperation of the annular electric sliding rail, the detection assembly and the installation unit, the annular electric sliding rail drives the detection assembly through the installation unit to monitor the transformer in real time, and stable operation of the transformer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of online monitoring of distribution transformers, in particular to a mounting structure and a transformer acoustic detection device. Background Art

[0002] The distribution transformer is an important equipment in the distribution network. Once the distribution transformer is damaged, it will cause a serious power outage, which will have a significant impact on the power supply reliability of the distribution network. At present, acoustic imaging detection is a relatively effective technical means for live detection of the operating status of the distribution transformer. It can detect abnormal vibrations of the distribution transformer or serious internal insulation defects. However, acoustic imaging detection is limited to on-site detection, and it is difficult to achieve real-time live detection and conduct real-time and accurate operation status assessment and defect diagnosis of the distribution transformer. The existing technology has the following problems: 1. It is not convenient to install and disassemble the acoustic detector; 2. It is not convenient to monitor the transformer in real time. Utility Model Content

[0003] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] The utility model aims to provide a mounting structure, which can solve the problem that it is inconvenient to mount and disassemble an acoustic detector.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an installation structure, which includes an installation unit, the installation unit includes a supporting block and a first limiting component and a second limiting component respectively installed inside two sides of the supporting block, and the first limiting component and the second limiting component are on the same central axis.

[0006] As a preferred solution of the installation structure described in the utility model, wherein: a sliding seat is fixedly installed on the top of the supporting block, a placement groove is provided at the bottom of the supporting block, a first groove is provided on one side of the placement groove, a through hole is provided through one side of the first groove, four limit seats are evenly fixedly connected to one side of the first groove, and two sliding blocks are symmetrically fixedly connected to the inner circle of the through hole.

[0007] As a preferred solution of the installation structure described in the utility model, wherein: the first limiting assembly includes a second groove opened in the supporting block, a first spring arranged in the second groove and a first limiting rod passing through the supporting block, the first limiting rod is slidably matched with the supporting block, the first limiting rod is fixedly connected with a baffle, and the two ends of the first spring are respectively fixed to one side of the baffle and one side of the second groove.

[0008] As a preferred solution of the installation structure described in the utility model, wherein: the second limiting assembly includes a first limiting ring fixed in the first groove, a second limiting ring rotating in the first groove, four second limiting rods sliding on the first limiting ring, and a third limiting rod sliding on the inner ring of the first limiting ring and the second limiting ring.

[0009] As a preferred solution of the installation structure described in the utility model, wherein: four first limiting grooves are evenly arranged on the first limiting ring, T-shaped grooves are arranged on both sides of the first limiting groove away from the second limiting ring, and the first limiting grooves correspond to the limiting seats.

[0010] As a preferred solution of the installation structure described in the utility model, wherein: the second limiting ring is located on the side of the first limiting ring close to the placement groove, four second limiting grooves that are compatible with the four first limiting grooves are evenly opened on the second limiting ring, and the inner ring of the second limiting ring is symmetrically fixedly connected with two sliding rods.

[0011] As a preferred scheme of the installation structure described in the utility model, wherein: the outer ring movable sleeve of the second limit rod is provided with a movable ring, one side of the movable ring is fixedly connected with two T-blocks adapted to the two T-slots, the outer ring fixed sleeve of one end of the second limit rod is provided with a fixed ring, a second spring is arranged between the fixed ring and the movable ring, and the two ends of the second spring are respectively fixed to one side of the fixed ring and one side of the movable ring, and the second limit rod is slidably matched with the second limit groove, the first limit groove and the limit seat.

[0012] As a preferred solution of the installation structure described in the utility model, the outer ring of the third limiting rod is evenly provided with two thread grooves, one end of the thread groove is provided with a first sliding groove, the outer ring of the third limiting rod is symmetrically provided with two second sliding grooves, the second sliding grooves are slidably matched with the slider, and the thread grooves and the first sliding grooves are slidably matched with the sliding rod.

[0013] The beneficial effects of the utility model are as follows: the utility model can ensure that the device can perform all-round detection of the transformer through the setting of the bearing block, and through the setting of the first limit assembly and the second limit assembly, it can greatly facilitate the installation and disassembly of the acoustic detector, and at the same time, the angle of the acoustic detector can be changed so as to cover the entire transformer.

[0014] The utility model aims to provide a transformer acoustic detection device, which can solve the problem of inconvenience in real-time monitoring of the transformer.

[0015] To solve the above technical problems, the utility model provides the following technical solutions: a transformer acoustic detection device, which includes a detection unit, the detection unit includes an annular electric slide rail and a detection component, the installation unit is slidably matched with the annular electric slide rail, and the detection component is rotatably installed on the placement groove.

[0016] As a preferred solution of the transformer acoustic detection device described in the utility model, wherein: the detection component includes a connecting column rotating in a placement groove, an acoustic detector fixed to the outer ring of the connecting column through a connecting plate, and a power supply fixedly installed on one side of the acoustic detector, both ends of the connecting column are provided with limiting holes, one end of the connecting column is provided with a third limiting groove, the two limiting holes are respectively adapted to the third limiting rod and the first limiting rod, the third limiting groove is adapted to the four second limiting rods, and the acoustic detector is connected to the annular electric slide rail electrical signal.

[0017] Beneficial effects of the utility model: the utility model cooperates between the annular electric slide rail, the detection component and the installation unit. The annular electric slide rail drives the detection component through the installation unit to perform real-time monitoring of the transformer, thereby ensuring the stable operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 A schematic diagram of the installation structure.

[0020] Figure 2 It is a partial structural cross-sectional view of the installation structure.

[0021] Figure 3 This is a structural explosion diagram of the second limiting component.

[0022] Figure 4 for Figure 2 Enlarged structural diagram at A in the middle.

[0023] Figure 5 for Figure 2 Enlarged structural diagram at B in the middle.

[0024] Figure 6 This is a schematic diagram of the structure of the transformer acoustic detection device.

[0025] Figure 7 A schematic diagram of the structure of the detection component. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 to Figure 5 , which is the first embodiment of the utility model, and this embodiment provides a mounting structure, which includes a mounting unit 100, and the mounting unit 100 includes a bearing block 101 and a first limiting component 102 and a second limiting component 103 respectively installed inside the two sides of the bearing block 101, and the first limiting component 102 and the second limiting component 103 are on the same central axis.

[0031] The supporting block 101 plays a bearing role. The detection component 202 can be quickly installed and disassembled through the first limiting component 102 and the second limiting component 103, and the rotation of the detection component 202 can be adjusted by controlling the second limiting component 103, and the angle of the acoustic detector 202e can be changed.

[0032] Specifically, a sliding seat 101a is fixedly installed on the top of the supporting block 101, a placement groove 101b is opened at the bottom of the supporting block 101, a first groove 101c is opened on one side of the placement groove 101b, a through hole 101d is opened through one side of the first groove 101c, four limit seats 101e are evenly fixedly connected to one side of the first groove 101c, and two sliding blocks 101f are symmetrically fixedly connected to the inner circle of the through hole 101d.

[0033] The slide seat 101a can cooperate with the annular electric slide rail 201, and the annular electric slide rail 201 can drive the installation unit 100 to move. The placement groove 101b is set to place the detection component 202. The first groove 101c and the through hole 101d are set to provide space for the operation of the second limit component 103, and the limit seat 101e can cooperate with the second limit rod 103c to control the movement of the second limit rod 103c, and the setting of the slider 101f can limit the movement of the third limit rod 103d to prevent the third limit rod 103d from rotating during movement.

[0034] Example 2

[0035] Reference Figure 2 to Figure 5 , which is the second embodiment of the utility model, which is different from the first embodiment in that it also includes a first limiting component 102 including a second groove 102a opened in the bearing block 101, a first spring 102c arranged in the second groove 102a, and a first limiting rod 102b passing through the bearing block 101, the first limiting rod 102b is slidably matched with the bearing block 101, the first limiting rod 102b is fixedly connected with a baffle 102d, and the two ends of the first spring 102c are respectively fixed to one side of the baffle 102d and one side of the second groove 102a.

[0036] By pulling the end of the first limiting rod 102b located on the outside of the supporting block 101, the end of the first limiting rod 102b located in the placement groove 101b can be moved toward the second groove 102a. During the movement, the first spring 102c will be compressed. By pulling the first limiting rod 102b, the installation and disassembly of the detection component 202 can be facilitated, and the first limiting rod 102b can also support the angle adjustment of the detection component 202.

[0037] Specifically, the second limiting assembly 103 includes a first limiting ring 103a fixed in the first groove 101c, a second limiting ring 103b rotating in the first groove 101c, four second limiting rods 103c sliding on the first limiting ring 103a, and a third limiting rod 103d sliding on the inner rings of the first limiting ring 103a and the second limiting ring 103b.

[0038] By moving the third limit rod 103d, the second limit ring 103b can be driven to rotate, and after the second limit ring 103b rotates, the second limit rod 103c can be moved through the cooperation between the second limit groove 103b-1 and the first limit groove 103a-1, and through the sliding cooperation between the second limit rod 103c and the limit seat 101e, the second limit rod 103c can be moved horizontally, so that it extends out of the first groove 101c or is retracted into the first groove 101c, thereby supporting the detection component 202 and limiting the rotation of the detection component 202.

[0039] Specifically, four first limiting grooves 103a-1 are evenly formed on the first limiting ring 103a, and T-shaped grooves 103a-2 are formed on both sides of the first limiting groove 103a-1 away from the second limiting ring 103b, and the first limiting groove 103a-1 corresponds to the limiting seat 101e.

[0040] The first limiting groove 103a-1 can provide a limit for the movement of the second limiting rod 103c, so that the second limiting rod 103c can only make a single reverse movement, and through the setting of the T-slot 103a-2, the movable ring 103c-1 can be limited so that it can always fit with one side of the first limiting ring 103a, and the movable ring 103c-1 can slide along the direction of the first limiting groove 103a-1.

[0041] Specifically, the second limiting ring 103b is located on the side of the first limiting ring 103a close to the placement groove 101b, and four second limiting grooves 103b-1 that are compatible with the four first limiting grooves 103a-1 are evenly opened on the second limiting ring 103b. The inner ring of the second limiting ring 103b is symmetrically fixedly connected with two sliding rods 103b-2.

[0042] Through the setting of the sliding rod 103b-2, when the third limiting rod 103d is operated to move, the sliding cooperation between the sliding rod 103b-2 and the threaded groove 103d-1 can drive the second limiting ring 103b to rotate. When the second limiting ring 103b rotates, the setting of the second limiting groove 103b-1 can drive the second limiting rod 103c to slide in the first limiting groove 103a-1, so that the four second limiting rods 103c move closer to the center or spread out to the surroundings.

[0043] Specifically, the outer ring movable sleeve of the second limiting rod 103c is provided with a movable ring 103c-1, and one side of the movable ring 103c-1 is fixedly connected with two T-blocks 103c-2 adapted to the two T-slots 103a-2, and the outer ring fixed sleeve of one end of the second limiting rod 103c is provided with a fixed ring 103c-3, and a second spring 103c-4 is arranged between the fixed ring 103c-3 and the movable ring 103c-1, and the two ends of the second spring 103c-4 are respectively fixed to one side of the fixed ring 103c-3 and one side of the movable ring 103c-1, and the second limiting rod 103c is slidably matched with the second limiting groove 103b-1, the first limiting groove 103a-1, and the limiting seat 101e.

[0044] The cooperation between the T-block 103c-2 and the T-slot 103a-2 can make the movable ring 103c-1 close to one side of the first limiting ring 103a and can slide in the T-slot 103a-2. At this time, the second spring 103c-4 and the fixed ring 103c-3 can drive one end of the second limiting rod 103c to fit with one side of the limiting seat 101e. Due to the setting of the inclined surface of the limiting seat 101e, the second limiting ring 103b rotates to drive the second limiting rod 103c to move. When the third limiting rod 103d is moved, it can move in another direction so that it can cooperate with the third limiting groove 202c to realize the rotation limit of the detection component 202. When one end of the second limiting rod 103c reaches the plane at the highest point of the inclined surface of the limiting seat 101e, the position of the second limiting rod 103c can be limited. If the third limiting rod 103d is not operated at this time, the second limiting rod 103c will be fixed to the plane of 102e. At this time, the device remains stable and the rotation of the detection component 202 is limited.

[0045] Specifically, the outer ring of the third limiting rod 103d is evenly provided with two thread grooves 103d-1, one end of the thread groove 103d-1 is provided with a first slide groove 103d-2, the outer ring of the third limiting rod 103d is symmetrically provided with two second slide grooves 103d-3, the second slide groove 103d-3 is slidably matched with the slider 101f, and the thread groove 103d-1 and the first slide groove 103d-2 are slidably matched with the slide rod 103b-2.

[0046] The movement of the third limiting rod 103d is limited by the cooperation between the second sliding groove 103d-3 and the slider 101f, and the second limiting ring 103b can be controlled by the movement of the third limiting rod 103d by the cooperation between the thread groove 103d-1, the first sliding groove 103d-2 and the slider 103b-2.

[0047] When in use, when it is necessary to install and disassemble the detection component 202, first pull the third limit rod 103d, the third limit rod 103d moves to the outside of the bearing block 101, and the slider 101f slides in the second slide groove 103d-3. When the third limit rod 103d moves, due to the shape of the thread groove 103d-1, it will drive the second limit ring 103b to rotate. When the second limit ring 103b rotates, due to the setting of the second limit groove 103b-1 and the first limit groove 103a-1, it will drive the second limit rod 103c along the first limit groove 103a-1 moves toward the center. When the second limiting rod 103c moves, the second limiting rod 103c is fitted with the limiting seat 101e due to the second spring 103c-4. When the second limiting rod 103c moves toward the center, it contacts the inclined surface of the limiting seat 101e. At this time, the second limiting rod 103c moves into the first groove 101c. During the process of continuously pulling the third limiting rod 103d, when the sliding rod 103b-2 cooperates with the first sliding groove 103d-2, the second limiting rod 103c is disengaged from the third limiting groove 202c, and the third limiting rod 103c is One end of the limiting rod 103d is still located in the limiting hole 202b, providing support for the detection component 202, and then the third limiting rod 103d is continued to be pulled. At this time, the sliding rod 103b-2 slides in the first sliding groove 103d-2, and the second limiting ring 103b does not rotate. When the sliding rod 103b-2 is in the first sliding groove 103d-2, the rotation of the second limiting ring 103b is limited to prevent the device from returning to its original position after being released. When the third limiting rod 103d is pulled to a certain position, the third limiting rod 103d is disengaged from the limiting hole 202b , then pull the first limiting rod 102b to make the baffle 102d disengage from the limiting hole 202b, so that the detection component 202 can be disassembled, and when the sliding rod 103b-2 begins to cooperate with the first sliding groove 103d-2, the third limiting rod 103d can provide support for the detection component 202 and can also rotate and adjust the detection component 202; when installing, you only need to place the connecting column 202a into the placement groove 101b, adjust the angle of the acoustic detector 202e, and then press the third limiting rod 103d until the device returns to its original position.

[0048] Example 3

[0049] Reference Figure 6-7 , which is the third embodiment of the utility model, is based on the previous two embodiments. This embodiment provides a mounting structure and a transformer acoustic detection device, which includes a detection unit 200, the detection unit 200 includes an annular electric slide rail 201 and a detection component 202, the mounting unit 100 is slidably matched with the annular electric slide rail 201, and the detection component 202 is rotatably installed on the placement groove 101b.

[0050] Furthermore, the detection component 202 includes a connecting column 202a rotating in the placement groove 101b, an acoustic detector 202e fixed to the outer ring of the connecting column 202a through a connecting plate 202d, and a power supply 202f fixedly installed on one side of the acoustic detector 202e. Limiting holes 202b are provided at both ends of the connecting column 202a, and a third limiting groove 202c is provided at one end of the connecting column 202a. The two limiting holes 202b are respectively adapted to the third limiting rod 103d and the first limiting rod 102b, and the third limiting groove 202c is adapted to the four second limiting rods 103c. The acoustic detector 202e is electrically connected to the annular electric slide rail 201, and the recessed part of the side wall of the third limiting groove 202c is adapted to the second limiting rod 103c.

[0051] During use, after the detection component 202 is installed on the supporting block 101, the acoustic detector 202e is powered by the power supply 202f, and the transformer is monitored by the acoustic detector 202e to prevent it from malfunctioning. In addition, through the cooperation between the detection component 202 and the supporting block 101, the power supply 202f can also be conveniently charged or replaced. The acoustic detector 202e is connected to the external alarm device by electrical signals, and the detection component 202 can control the switch of the annular electric slide rail 201.

[0052] When testing the transformer using the acoustic detector 202e, you need to select

[0053] The three frequency band widths of 20kHz~25kHz, 25kHz~30kHz and 30kHz~35kHz are patrolled and scanned in turn. Once all three frequency bands are patrolled, it is considered that the patrol is completed once. During the patrol process, if any of the patrolled frequency bands has an acoustic signal greater than 5dB, the acoustic signal should have a certain stability, and occasional non-fault signals should be avoided from being included in abnormal signals. After an abnormal acoustic signal appears, the acoustic detection device automatically stops on the patrol track, takes a photo of the abnormal acoustic signal, and stores it. The acoustic signal image is stored in the data storage alarm device through wireless transmission, and an alarm is issued in time, while the staff conducts maintenance.

[0054] In summary, when in use, first install the supporting block 101 on the annular electric slide rail 201 through the slide seat 101a, and then install the detection component 202 on the supporting block 101 in the manner of installation embodiment 2, and then turn on the annular electric slide rail 201 to monitor the transformer in real time through the acoustic detector 202e.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A mounting structure, characterized in that: include, An installation unit (100), the installation unit (100) comprising a bearing block (101) and a first limiting assembly (102) and a second limiting assembly (103) respectively installed inside two sides of the bearing block (101), the first limiting assembly (102) and the second limiting assembly (103) being located on the same central axis.

2. The mounting structure according to claim 1, characterized in that: A sliding seat (101a) is fixedly installed on the top of the bearing block (101), a placement groove (101b) is provided at the bottom of the bearing block (101), a first groove (101c) is provided on one side of the placement groove (101b), a through hole (101d) is provided through one side of the first groove (101c), four limiting seats (101e) are evenly fixedly connected to one side of the first groove (101c), and two sliding blocks (101f) are symmetrically fixedly connected to the inner circle of the through hole (101d).

3. The mounting structure according to claim 2, characterized in that: The first limiting assembly (102) comprises a second groove (102a) opened in the bearing block (101), a first spring (102c) arranged in the second groove (102a), and a first limiting rod (102b) penetrating the bearing block (101); the first limiting rod (102b) is slidably matched with the bearing block (101); the first limiting rod (102b) is fixedly connected with a baffle (102d); and two ends of the first spring (102c) are respectively fixed to one side of the baffle (102d) and one side of the second groove (102a).

4. The mounting structure according to claim 2 or 3, characterized in that: The second limiting assembly (103) comprises a first limiting ring (103a) fixed in the first groove (101c), a second limiting ring (103b) rotating in the first groove (101c), four second limiting rods (103c) sliding on the first limiting ring (103a), and a third limiting rod (103d) sliding on the inner rings of the first limiting ring (103a) and the second limiting ring (103b).

5. The mounting structure according to claim 4, characterized in that: Four first limiting grooves (103a-1) are evenly arranged on the first limiting ring (103a), T-shaped grooves (103a-2) are arranged on both sides of the first limiting groove (103a-1) away from the second limiting ring (103b), and the first limiting groove (103a-1) corresponds to the limiting seat (101e).

6. The mounting structure according to claim 5, characterized in that: The second limiting ring (103b) is located on a side of the first limiting ring (103a) close to the placement groove (101b), and four second limiting grooves (103b-1) that are compatible with the four first limiting grooves (103a-1) are evenly arranged on the second limiting ring (103b), and the inner ring of the second limiting ring (103b) is symmetrically fixedly connected to two sliding rods (103b-2).

7. The mounting structure according to claim 6, characterized in that: The outer ring movable sleeve of the second limiting rod (103c) is provided with a movable ring (103c-1), and one side of the movable ring (103c-1) is fixedly connected with two T-blocks (103c-2) adapted to the two T-slots (103a-2); the outer ring fixed sleeve of one end of the second limiting rod (103c) is provided with a fixed ring (103c-3), a second spring (103c-4) is arranged between the fixed ring (103c-3) and the movable ring (103c-1), and the two ends of the second spring (103c-4) are respectively fixed to one side of the fixed ring (103c-3) and one side of the movable ring (103c-1); the second limiting rod (103c) is slidably matched with the second limiting slot (103b-1), the first limiting slot (103a-1), and the limiting seat (101e).

8. The mounting structure according to claim 7, characterized in that: The outer ring of the third limiting rod (103d) is evenly provided with two thread grooves (103d-1), one end of the thread groove (103d-1) is provided with a first slide groove (103d-2), the outer ring of the third limiting rod (103d) is symmetrically provided with two second slide grooves (103d-3), the second slide grooves (103d-3) are slidably matched with the slider (101f), and the thread groove (103d-1) and the first slide groove (103d-2) are slidably matched with the slide rod (103b-2).

9. A transformer acoustic detection device, characterized in that: The mounting structure comprises any one of claims 1 to 8; and The detection unit (200) comprises an annular electric slide rail (201) and a detection assembly (202); the mounting unit (100) is slidably matched with the annular electric slide rail (201); and the detection assembly (202) is rotatably mounted on the placement groove (101b).

10. The transformer acoustic detection device according to claim 9, characterized in that: The detection component (202) comprises a connecting column (202a) rotating in a placement groove (101b), an acoustic detector (202e) fixed to the outer ring of the connecting column (202a) through a connecting plate (202d), and a power supply (202f) fixedly installed on one side of the acoustic detector (202e), both ends of the connecting column (202a) are provided with limiting holes (202b), one end of the connecting column (202a) is provided with a third limiting groove (202c), the two limiting holes (202b) are respectively matched with the third limiting rod (103d) and the first limiting rod (102b), the third limiting groove (202c) is matched with the four second limiting rods (103c), and the acoustic detector (202e) is connected to the annular electric slide rail (201) by electrical signals.

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