A non-contact detection device for charged surface of an object

Abstract

The present application relates to a non-contact detection device for detecting whether an object's surface is charged, which includes: a walking device, an insulating telescopic rod, a first electric field sensing component, a second electric field sensing component, a first signal receiving device, a second signal receiving device, and a power supply device. Since the first electric field sensing component and the first signal receiving device are arranged in correspondence, the device uses an electric field sensor to detect whether the surface of an object is charged; the second electric field sensing component and the second signal receiving device are arranged in correspondence, and two separated spaces are provided in the second electric field sensing component, and the two spaces are respectively provided with positively charged particles and negatively charged particles. The device uses the characteristic that the charged particles are arranged in a certain direction under the influence of the electric field force in the electric field to detect whether the surface of the object is charged. The device will not be damaged by high voltage electricity, and uses two methods to adapt to high voltage electricity and ordinary electricity scenarios respectively, and uses the walking device and the insulating telescopic rod to expand the detection range, which is convenient for safety detection.

Description

Technical Field

[0001] The present application relates to the field of power safety, and in particular to a non-contact detection device for detecting charged surfaces of objects. Background Art

[0002] Substations are a crucial link in power transmission, so their safety is crucial. To ensure reliable power supply, substations regularly conduct outages for inspection and maintenance of various live equipment and devices.

[0003] Cranes are often used for on-site handling and inspection of large equipment. Since substations generally cannot shut down all busbars and transformers, some busbars and transformers remain operational while cranes and other construction equipment are operating. Cranes and other construction equipment, as vehicles operating on the high-voltage site of a substation, can function as a grounding system. Furthermore, crane booms and bodies are typically made of conductive metal. Once the boom is within a certain distance of live equipment, a breakdown discharge can occur, triggering the substation's relay protection equipment to trip related circuit breakers, resulting in casualties among on-site workers and unplanned power outages for electricity users, among other negative social impacts.

[0004] Therefore, in order to ensure the safety of on-site workers and equipment, it is necessary to detect whether the equipment surface in the construction site is charged, and then put warning signs according to the charged situation. However, there are some difficulties in actual detection. The main influencing points are as follows:

[0005] (1) To ensure safety, it is usually necessary to conduct inspections without contacting the surface of the object being inspected. In addition, the inspector needs to maintain a certain distance from the live equipment to avoid danger.

[0006] (2) When testing some equipment with high voltage electricity, there is a high voltage arc around the high voltage electricity, and high voltage arc electric shock or step voltage electric shock may occur when approaching. Therefore, there is a risk of damage to the energized testing equipment.

[0007] (3) In the construction site, there are still the following needs, such as the need to walk around the site, the inspection personnel need to move around, and the construction site needs to inspect objects at a certain height, and the inspection range of the inspection personnel is limited. Summary of the Invention

[0008] The embodiments of the present application provide a non-contact detection device for detecting charged surfaces of objects, so as to solve the problem in related technologies that detection equipment cannot be applied to detect charged surfaces of objects with high voltage and normal voltage.

[0009] In a first aspect, a non-contact detection device for detecting a charged surface of an object is provided, comprising:

[0010] A walking device provided with an insulating telescopic rod;

[0011] A first electric field sensing component is provided on an end of the insulating telescopic rod away from the walking device; the first electric field sensing component includes an electric field sensor, a signal transmission line and a power transmission line;

[0012] a second electric field sensing component mounted on the first electric field sensing component; the second electric field sensing component comprises a transparent housing having two separate spaces therein, wherein the two spaces are respectively provided with positively charged particles and negatively charged particles;

[0013] a first signal receiving device, which is provided on the walking device and connected to the first electric field sensing component via a signal transmission line;

[0014] a power supply device, which is provided on the walking device and connected to the first electric field sensing component and the first signal receiving device via a power transmission line;

[0015] The second signal receiving device is arranged on the insulating telescopic rod and is used to obtain the movement state of the positively charged particles and the negatively charged particles in the transparent shell.

[0016] In some embodiments, the second signal receiving device includes a hinge member, a locking member, a connecting rod, and an image acquisition member;

[0017] Wherein, the hinge is arranged on the outer surface of the insulating telescopic rod; one end of the connecting rod is connected to the hinge, and the other end is connected to the image acquisition component; the locking member is installed on the hinge to limit the rotation of the connecting rod.

[0018] In some embodiments, the hinged member includes a connecting seat and a rotating rod rotatably connected to the connecting seat, wherein the rotating rod is provided with a first clamping hole;

[0019] The locking member includes a sleeve and a clamping rod. The sleeve and the rotating rod are coaxially installed on the connecting seat, and one end of the rotating rod extends into the sleeve. A second clamping hole is provided on the sleeve. When locking the connecting rod, the clamping rod passes through the first clamping hole and the second clamping hole.

[0020] In some embodiments, the image acquisition component is a magnifying glass or a camera;

[0021] The image acquisition component is connected to the connecting rod via a T-shaped connecting block, and an accommodating groove adapted to the T-shaped connecting block is provided on the outer surface of the insulating telescopic rod.

[0022] In some embodiments, the first electric field sensing component further includes a hollow mounting housing, the mounting housing having an opening, and the electric field sensor, signal transmission line, and power transmission line disposed therein;

[0023] A hinged cover plate is provided on the installation shell, and a first adhesive tape is provided on the cover plate; and a second adhesive tape bonded to the first adhesive tape is provided on the transparent shell.

[0024] In some embodiments, the mounting housing and the transparent housing are bonded together by glue or connected by an L-shaped connector.

[0025] In some embodiments, the walking device includes a box with an opening at the top, the interior space of the box being divided into a first space and a second space, a first driving member being provided on the bottom wall of the first space, the first driving member being provided with a base connected to the insulating telescopic rod, the first driving member being used to drive the base to rotate; a second driving member being further provided on the bottom wall of the first space; and the second space accommodating the power supply device and the first signal receiving device.

[0026] The box body is provided with a traveling wheel which is transmission-connected with the second driving member.

[0027] In some embodiments, the base is provided with a mounting groove, one end of the insulating telescopic rod is located in the mounting groove and is rotatably connected to the base through a circular shaft, and a third driving member is connected to the circular shaft, and the third driving member is used to drive the insulating telescopic rod to rotate around the base.

[0028] In some embodiments, a guide rail is provided on the box body, and a slider slidably connected to the guide rail is provided in the middle of the insulating telescopic rod.

[0029] A second aspect provides a non-contact detection method for detecting a charged surface of an object, comprising the following steps:

[0030] Provide a non-contact detection device for the charged surface of an object;

[0031] Using the walking device to reach the vicinity of the object to be detected, and then using the insulating telescopic rod to move the first electric field sensing component and the second electric field sensing component to a position at a designed distance from the object to be detected;

[0032] When the voltage of the electricity used in the construction environment is a normal voltage, the first electric field sensing component is used to detect whether the object is charged, and the first signal receiving device is used to receive the signal detected by the first electric field sensing component;

[0033] When the voltage of electricity used in the construction environment is a normal voltage, the second electric field sensing component is used to detect whether the object being detected is charged, and the second signal receiving device is used to receive the signal detected by the second electric field sensing component.

[0034] The beneficial effects of the technical solution provided by this application include:

[0035] (1) An embodiment of the present application provides a non-contact detection device for detecting whether an object surface is charged. Since a first electric field sensing component and a first signal receiving device are correspondingly arranged, the device uses an electric field sensor to detect whether the surface of an object is charged; a second electric field sensing component and a second signal receiving device are correspondingly arranged, and two separated spaces are provided in the second electric field sensing component, and positively charged particles and negatively charged particles are provided in the two spaces respectively. The device uses the characteristic that charged particles are arranged in a certain direction under the influence of the electric field force in the electric field to detect whether the surface of an object is charged. The device will not be damaged by high voltage electricity, and uses two methods to adapt to high voltage electricity and ordinary electricity scenarios respectively.

[0036] (2) The second signal receiving device includes a hinge, a locking member, a connecting rod and an image acquisition member, which can be stored when not in use and locked according to usage requirements to maintain stability.

[0037] (3) The walking device includes a box with an opening at the top, the interior space of the box is divided into a first space and a second space, a first driving member is provided on the bottom wall of the first space, a base connected to the insulating telescopic rod is provided on the first driving member, and the first driving member is used to drive the base to rotate; a second driving member is also provided on the bottom wall of the first space; the second space accommodates the power supply device and the first signal receiving device;

[0038] The box body is provided with a walking wheel which is transmission-connected to the second driving member; the use of the walking device allows the device to be moved at will to avoid being picked up by the inspectors, and the setting of the insulating telescopic rod ensures the safety of the inspectors and expands the scope of detection, which not only allows detection within the plane, but also in the vertical space.

[0039] (4) The box body is provided with a guide rail, and the middle part of the insulating telescopic rod is provided with a slider that is slidably connected to the guide rail. This arrangement allows the insulating telescopic rod to move more smoothly in the horizontal plane without deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 A schematic diagram of a non-contact detection device for detecting charged surfaces of objects provided in an embodiment of the present application;

[0042] Figure 2A schematic diagram illustrating the connection between a first electric field sensing component, a second electric field sensing component, and a second signal receiving device on an insulating telescopic rod provided in an embodiment of the present application;

[0043] Figure 3 A schematic structural diagram of a second electric field sensing component provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of a second signal receiving device provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of an image acquisition component provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of the connection between the hinge and the locking member provided in an embodiment of the present application;

[0047] Figure 7 A schematic diagram of a non-contact detection device for detecting charged surface of an object from another perspective provided by an embodiment of the present application;

[0048] Figure 8 A schematic diagram of the structure of the walking device provided in an embodiment of the present application;

[0049] Figure 9 A schematic diagram of the structure of a first electric field sensing component and a second electric field sensing component in a first connection form provided in an embodiment of the present application;

[0050] Figure 10 This is a schematic structural diagram of a first electric field sensing component and a second electric field sensing component in a second connection form provided in an embodiment of the present application.

[0051] In the figure: 1. Traveling device; 100. Box; 101. Base; 102. First driving member; 103. Second driving member; 104. Travel wheel; 105. Third driving member; 106. Guide rail; 2. Insulating telescopic rod; 3. First electric field sensing component; 300. Mounting housing; 301. Covering plate; 302. First adhesive tape; 4. Second electric field sensing component; 400. Transparent housing; 401. Second adhesive tape; 402, L-shaped connector; 403, feeding tube; 5, first signal receiving device; 6, second signal receiving device; 600, hinged member; 6001, connecting seat; 6002, rotating rod; 601, locking member; 6011, sleeve; 6012, clamping rod; 602, connecting rod; 603, image acquisition member; 6031, magnifying glass; 6032, camera; 604, T-shaped connecting block; 7, power supply unit; 8, slider. DETAILED DESCRIPTION

[0052] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0053] The embodiments of the present application provide a non-contact detection device and method for detecting charged surfaces of objects, so as to solve the problem in the related art that the detection equipment is not applicable to the detection of charged surfaces of objects with high voltage and normal voltage.

[0054] See also Figure 1-10 A non-contact detection device for detecting charged surface of an object includes: a walking device 1, an insulating telescopic rod 2, a first electric field sensing component 3, a second electric field sensing component 4, a first signal receiving device 5, a second signal receiving device 6 and a power supply device 7.

[0055] The walking device 1 is equipped with an insulating telescopic rod 2. A first electric field sensing assembly 3 is located at the end of the insulating telescopic rod 2 away from the walking device 1. The first electric field sensing assembly 3 includes an electric field sensor, a signal transmission line, and a power line. A second electric field sensing assembly 4 is mounted on the first electric field sensing assembly 3. The second electric field sensing assembly 4 includes a transparent housing 400 with two separate compartments, each containing positively charged particles and negatively charged particles, to prevent the positive and negative charges from combining and causing loss of charge. A first signal receiving device 5 is located on the walking device 1 and connected to the first electric field sensing assembly 3 via a signal transmission line. A power supply 7 is located on the walking device 1 and connected to the first electric field sensing assembly 3 and the first signal receiving device 5 via a power line. A second signal receiving device 6 is located on the insulating telescopic rod 2 and is used to detect the motion state of the positively and negatively charged particles within the transparent housing 400. The section connecting the insulating telescopic rod 2 and the first electric field sensing assembly 3 is made of a strong insulating material; the rest of the structure is the same as that of existing telescopic rods. The first signal receiving device 5 refers to a signal receiving device known in the art.

[0056] In the above configuration, the first electric field sensing component 3 and the first signal receiving device 5 are correspondingly configured, and an electric field sensor is used to detect whether the surface of an object is charged. This detection method is a common electric field detection configuration and will not be further explained.

[0057] refer to Figure 3The second electric field sensing component 4 and the second signal receiving device 6 are correspondingly arranged. The second electric field sensing component 4 has two separate compartments, each containing positively charged particles and negatively charged particles. The second electric field sensing component 4 utilizes the characteristic that charged particles are aligned in a certain direction due to the electric field force in the electric field to detect whether the surface of an object is charged. The second electric field sensing component 4 will not cause damage due to arcing caused by high voltage electricity, and is suitable for high voltage electricity. The two methods are used to adapt to high voltage and ordinary electricity scenarios respectively, avoiding damage to the electric field sensor.

[0058] It should be understood that the above description is the most suitable usage scenario for the two. The second electric field sensing component 4 can only detect whether it is charged, but cannot determine the magnitude of the electric field.

[0059] refer to Figure 2-Figure 6 , in some preferred embodiments,

[0060] The second signal receiving device 6 includes a hinge 600, a locking member 601, a connecting rod 602 and an image acquisition member 603; wherein, the hinge 600 is arranged on the outer surface of the insulating telescopic rod 2; one end of the connecting rod 602 is connected to the hinge 600, and the other end is connected to the image acquisition member 603; the locking member 601 is installed on the hinge 600 to limit the rotation of the connecting rod 602.

[0061] When the image acquisition member 603 is needed, the locking member 601 is unlocked and the connecting rod 602 can be rotated. After the image acquisition member 603 is rotated to the right position, the image acquisition member 603 faces the second electric field sensing component 4 and is then locked using the locking member 601. This realizes the function of storage and folding.

[0062] Furthermore, to achieve the locking function, the following settings are made:

[0063] The hinge 600 includes a connecting base 6001 and a rotating rod 6002 rotatably connected to the connecting base 6001. The rotating rod 6002 has a first locking hole. The locking member 601 includes a sleeve 6011 and a locking rod 6012. The sleeve 6011 is coaxially mounted with the rotating rod 6002 on the connecting base 6001, and one end of the rotating rod 6002 extends into the sleeve 6011. The sleeve 6011 has a second locking hole. When locking the connecting rod 602, the locking rod 6012 passes through the first and second locking holes. The locking rod 6012 is pulled out and inserted into the first and second locking holes, achieving a pin-type locking mechanism, resulting in a simple and stable structure.

[0064] Furthermore, the following description is given of the configuration of the image acquisition component 603:

[0065] The image acquisition member 603 is a magnifying glass 6031 or a camera 6032. The image acquisition member 603 is connected to the connecting rod 602 via a T-shaped connecting block 604. The outer surface of the insulating telescopic rod 2 is provided with a receiving groove adapted to the T-shaped connecting block 604, which facilitates the fixing of the image acquisition member 603.

[0066] In some preferred embodiments, the first electric field sensing assembly 3 further includes a hollow mounting housing 300 with an opening, housing an electric field sensor, signal transmission lines, and power lines. A hinged cover plate 301 is provided on the mounting housing 300, which is provided with a first adhesive tape 302. A transparent housing 400 is provided with a second adhesive tape 401 bonded to the first adhesive tape 302. The cover plate 301 protects the electric field sensor within the mounting housing 300 from damage and dust when not in use. A feeding tube 403 is provided on the transparent housing 400, which is normally closed and equipped with a feeding cap.

[0067] Furthermore, the mounting housing 300 and the transparent housing 400 are bonded together by glue or connected by an L-shaped connector 402. Both forms are acceptable, but the L-shaped connector 402 is preferred for ease of assembly.

[0068] refer to Figure 7-Figure 8 , the walking device 1 is described. The walking device 1 includes a box 100 with an opening at the top. The internal space of the box 100 is divided into a first space and a second space. A first driving member 102 is provided on the bottom wall of the first space. The first driving member 102 is provided with a base 101 connected to the insulating telescopic rod 2, and the first driving member 102 is used to drive the base 101 to rotate; a second driving member 103 is also provided on the bottom wall of the first space; the second space accommodates the power supply device 7 and the first signal receiving device 5; the box 100 is provided with a walking wheel 104 that is transmission-connected to the second driving member 103.

[0069] The second driving member 103 is used to drive the walking wheel 104 to move the box 100 and the insulating telescopic rod 2. When moving in the field, it can be used in conjunction with a remote control device. When detection is required at any position in the horizontal plane, the first driving member 102 drives the base 101 and the extension or shortening of the insulating telescopic rod 2 for coordinated use.

[0070] Furthermore, a guide rail 106 is provided on the box body 100, and a slider 8 is provided in the middle of the insulating telescopic rod 2, which is slidably connected to the guide rail 106. This makes the movement of the insulating telescopic rod 2 in the horizontal plane more stable and will not deviate.

[0071] When detection at a spatial height is required, the following structure is employed: A mounting slot is provided on the base 101, with one end of the insulating telescopic rod 2 positioned within the slot and rotatably connected to the base 101 via a circular shaft. A third driving member 105 is connected to the shaft, driving the insulating telescopic rod 2 to rotate about the base 101.

[0072] This application also proposes a non-contact detection method for the charged surface of an object, which comprises the following steps:

[0073] Providing the above-mentioned non-contact detection device for detecting charged surface of an object;

[0074] The walking device 1 is used to reach the vicinity of the object to be detected, and then the insulating telescopic rod 2 is used to move the first electric field sensing component 3 and the second electric field sensing component 4 to a position at a designed distance from the object to be detected;

[0075] When the voltage of the electricity used in the construction environment is a normal voltage, the first electric field sensing component 3 is used to detect whether the object is charged, and the first signal receiving device 5 is used to receive the signal detected by the first electric field sensing component 3;

[0076] When the voltage of the electricity used in the construction environment is high, the second electric field sensing component 4 is used to detect whether the object under test is charged, and the second signal receiving device 6 is used to receive the signal detected by the second electric field sensing component 4 .

[0077] Thus, by utilizing two sets of detection equipment, detection using high voltage electricity and ordinary electricity can be achieved, and the detection range is also wide, and detection can be performed in the horizontal plane and at the height of space.

[0078] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0079] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0080] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A non-contact detection device for detecting charged surface of an object, characterized in that: It includes: A walking device (1) is provided with an insulating telescopic rod (2); A first electric field sensing component (3) is arranged on an end of the insulating telescopic rod (2) away from the walking device (1); the first electric field sensing component (3) comprises an electric field sensor, a signal transmission line and a power transmission line; a second electric field sensing component (4) mounted on the first electric field sensing component (3); the second electric field sensing component (4) comprises a transparent shell (400), wherein the transparent shell (400) is provided with two separated spaces, wherein the two spaces are respectively provided with positively charged particles and negatively charged particles; a first signal receiving device (5), which is arranged on the walking device (1) and connected to the first electric field sensing component (3) via a signal transmission line; A power supply device (7) is provided on the walking device (1) and is connected to the first electric field sensing component (3) and the first signal receiving device (5) via a power transmission line; a second signal receiving device (6), which is arranged on the insulating telescopic rod (2) and is used to obtain the motion state of the positively charged particles and the negatively charged particles in the transparent shell (400); The second signal receiving device (6) comprises a hinge (600), a locking member (601), a connecting rod (602) and an image acquisition member (603); wherein the hinge (600) is arranged on the outer surface of the insulating telescopic rod (2); one end of the connecting rod (602) is connected to the hinge (600), and the other end is connected to the image acquisition member (603); the locking member (601) is installed on the hinge (600) to limit the rotation of the connecting rod (602); the hinge (600) comprises a connecting seat (6001), and a rotating rod (6002) rotatably connected to the connecting seat (6001), wherein the rotating rod (6002) is provided with a first locking hole; the locking member (601) comprises a sleeve (6011) and a locking rod (6012), wherein the sleeve (6011) and the rotating rod (6002) are coaxially mounted on the connecting seat (6001), and one end of the rotating rod (6002) extends into the sleeve (6011); a second locking hole is provided on the sleeve (6011); and when the connecting rod (602) is locked, the locking rod (6012) penetrates the first locking hole and the second locking hole.

2. The non-contact detection device for detecting surface charge of an object according to claim 1, wherein: The image acquisition component (603) is a magnifying glass (6031) or a camera (6032); The image acquisition component (603) is connected to the connecting rod (602) via a T-shaped connecting block (604), and an accommodating groove adapted to the T-shaped connecting block (604) is provided on the outer surface of the insulating telescopic rod (2).

3. The non-contact detection device for detecting surface charge of an object according to claim 1, wherein: The first electric field sensing component (3) further comprises an internally hollow mounting housing (300), the mounting housing (300) being provided with an opening, and the electric field sensor, signal transmission line and power transmission line being arranged inside the mounting housing (300); A hinged cover plate (301) is provided on the installation shell (300), and a first adhesive tape (302) is provided on the cover plate (301); and a second adhesive tape (401) bonded to the first adhesive tape (302) is provided on the transparent shell (400).

4. The non-contact detection device for detecting surface charge of an object according to claim 3, wherein: The installation housing (300) and the transparent housing (400) are bonded together by glue or connected by an L-shaped connector (402).

5. The non-contact detection device for detecting surface charge of an object according to claim 1, wherein: The walking device (1) comprises a box (100) with an opening at the top, the interior space of the box (100) is divided into a first space and a second space, a first driving member (102) is provided on the bottom wall of the first space, a base (101) connected to the insulating telescopic rod (2) is provided on the first driving member (102), and the first driving member (102) is used to drive the base (101) to rotate; a second driving member (103) is also provided on the bottom wall of the first space; the second space accommodates the power supply device (7) and the first signal receiving device (5); The box body (100) is provided with a running wheel (104) which is transmission-connected to the second driving member (103).

6. The non-contact detection device for detecting surface charge of an object according to claim 5, wherein: The base (101) is provided with a mounting groove, one end of the insulating telescopic rod (2) is located in the mounting groove and is rotatably connected to the base (101) via a circular shaft, and a third driving member (105) is connected to the circular shaft, and the third driving member (105) is used to drive the insulating telescopic rod (2) to rotate around the base (101).

7. The non-contact detection device for detecting surface charge of an object according to claim 5, wherein: A guide rail (106) is provided on the box body (100), and a slider (8) slidably connected to the guide rail (106) is provided in the middle of the insulating telescopic rod (2).

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