Detection mechanism and grounding cable detection device

Abstract

The invention relates to the technical field of grounding wires, in particular to a detection mechanism and a grounding cable detection device, and the detection mechanism comprises a grounding part which comprises a bolt and a grounding wire; the driving rotating part is in contact with the lower part of the bolt and is stressed to rotate in the first direction or the second direction when the bolt is screwed; the color developing linkage part is arranged on the driving rotating part, provided with a color developing area and connected with the driving rotating part through a first one-way linkage piece, and the first one-way linkage piece enables the driving rotating part to drive the color developing linkage part to rotate when the driving rotating part rotates in the second direction. The color developing device has the beneficial effects that selective movement transmission of the driving rotating part and the color developing linkage part is achieved through the first one-way linkage part, the color developing linkage part is prevented from moving when the driving rotating part rotates clockwise in the first direction, and the color developing linkage part is effectively driven to rotate synchronously when the driving rotating part rotates anticlockwise in the second direction; therefore, the color developing area is aligned with the observation area of the shell part, and the loosening state of the bolt is accurately displayed.

Description

Technical Field

[0001] The present invention relates to the technical field of grounding wires, and in particular to a detection mechanism and a grounding cable detection device. Background Art

[0002] In cabinets for equipment such as communications, power generation, and industrial control, grounding systems ensure the electrical safety of equipment and personnel. Typically, ground wires are connected to the cabinet's grounding points via bolts to achieve electrical continuity and mechanical fixation. To improve grounding reliability, existing techniques often employ a method where each bolt is connected to a separate ground wire to avoid the risk of poor contact caused by multiple ground wires sharing the same fixing point.

[0003] However, even with the "one bolt, one grounding wire" approach, certain problems still exist. In a vibration or impact environment, such as during the operation of vehicles, cabinets, power facilities or industrial machinery, bolts may gradually loosen due to long-term stress. Maintenance personnel may find it difficult to detect loose bolts or grounding failures in a timely manner during routine maintenance, which in turn brings risks to equipment operation. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that in a vibration or impact environment, such as during the operation of a vehicle, cabinet, power facility or industrial machinery, the bolts may still gradually loosen due to long-term stress.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes a detection mechanism, which includes a grounding member including a bolt and a grounding wire;

[0006] A driving rotating portion contacts the lower side of the bolt and is driven to rotate in a first direction or a second direction by a force when the bolt is tightened;

[0007] a color development linkage portion, disposed on the driving rotating portion, having a color development area, and connected to the driving rotating portion via a first one-way linkage member, wherein the first one-way linkage member causes the color development linkage portion to rotate when the driving rotating portion rotates in the second direction;

[0008] The outer shell, the driving rotating part and the color-developing linkage part are arranged inside the outer shell, and an observation area is provided on the surface. The initial position of the color-developing area is misaligned with the observation area. When the color-developing linkage part rotates along the second direction, the color-developing area is aligned with the observation area to display the state change.

[0009] In a preferred embodiment of the detection mechanism of the present invention: the driving rotating part includes a touch assembly located below the bolt, and the bolt presses the touch assembly downward when tightened clockwise and drives the touch assembly to rotate clockwise through friction.

[0010] In a preferred embodiment of the detection mechanism of the present invention, it further includes a turntable, which is fixedly connected to the bottom of the touch assembly and rotatably arranged on the outer shell.

[0011] In a preferred embodiment of the detection mechanism of the present invention, it further comprises a sealing disk, which is arranged above the color development linkage portion and is rotatably connected to the outer shell portion.

[0012] In a preferred embodiment of the detection mechanism of the present invention: a second one-way linkage is provided between the sealing disk and the color development linkage part, and the second one-way linkage keeps the sealing disk stationary when the color development linkage part rotates counterclockwise, and drives the sealing disk to rotate clockwise when the color development linkage part rotates clockwise.

[0013] In a preferred embodiment of the detection mechanism of the present invention: a cleaning layer is fixed on the outer shell, and the cleaning layer is located in the friction area between the sealing disk and the outer shell.

[0014] In order to solve the above technical problems, the present invention also provides the following technical solutions: a grounding cable detection device, comprising a detection mechanism, and a trigger assembly, comprising a first component and a second component, the first component and the second component being connected so as to be capable of relative movement; an adsorption layer, arranged on the top of the first component; a negative pressure generating unit, arranged inside the first component and linked to the second component, the negative pressure generating unit generating negative pressure through the relative movement of the first component and the second component; a reset component, cooperating with the first component and the second component, for driving the first component to return to its initial position.

[0015] In a preferred embodiment of the grounding cable detection device of the present invention: the negative pressure generating unit includes a piston cylinder, which is fixedly arranged inside the first component, a piston block is slidably connected to the inside of the piston cylinder, a piston rod is fixedly connected to the bottom of the piston block, the piston rod movably passes through the piston cylinder and is fixedly connected to the second component, and an air bag is fixed to the bottom of the piston cylinder; an air hole is arranged between the piston cylinder and the adsorption layer, and the air hole connects the piston cylinder and the adsorption layer.

[0016] In a preferred embodiment of the grounding cable detection device of the present invention, it further includes a mortgage shell rotatably connected to the outer shell, and a mortgage groove is formed on the mortgage shell, and the mortgage groove is used to accommodate the axial telescopic sliding of the first component.

[0017] In a preferred embodiment of the grounding cable detection device of the present invention, the reset member is a compression spring, one end of the compression spring abuts the first component, and the other end abuts the second component. The compression spring is compressed when the first component slides down, and when released, it drives the first component to reset axially upward.

[0018] The beneficial effects of the present invention are: selective motion transmission between the driving rotating part and the color-developing linkage part is realized through the first one-way linkage part, and the color-developing linkage part is prevented from moving when the driving rotating part rotates clockwise along the first direction, and effectively drives the color-developing linkage part to rotate synchronously when it rotates counterclockwise in the second direction, so that the color-developing area is aligned with the observation area of the outer shell, accurately displays the loose state of the bolt, selectively drives, avoids malfunction during the tightening process, and significantly improves the accuracy and reliability of detection.

[0019] The piston cylinder, piston block, piston rod, and air holes work together to generate negative pressure during the relative motion of the first and second components, enhancing the adhesion between the adsorption layer and the base of the bolt. The negative pressure generation unit dynamically adjusts air pressure, allowing the first component to closely follow the rotational and axial movement of the bolt, thereby accurately detecting bolt loosening.

[0020] By rotating the connecting housing and covering the color display area, dust and impurities are effectively prevented from accumulating, maintaining visibility of the color display area. The second one-way linkage, when the color display linkage rotates clockwise, drives the sealing disk to rub against the housing, triggering a self-cleaning function, removing surface deposits and ensuring clarity of the viewing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0022] Figure 1 shows the overall schematic diagram of the detection mechanism;

[0023] Figure 2 A perspective view of the driving rotating portion of the detection mechanism is shown;

[0024] Figure 3 A partial enlarged view of the first one-way linkage member of the detection mechanism is shown;

[0025] Figure 4 A sectional perspective view of the color development linkage portion of the detection mechanism is shown;

[0026] Figure 5 Shows a front view of the color development linkage portion of the detection mechanism;

[0027] Figure 6 A three-dimensional schematic diagram of a grounding cable detection device is shown;

[0028] Figure 7 An exploded perspective view of a trigger assembly of a grounding cable detection device is shown. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0030] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0031] Reference Figure 1-5 , this embodiment provides a detection mechanism, including a grounding member 1, including a bolt 11 and a grounding wire 12, wherein the bolt 11 is used to fix the grounding wire 12 on the grounding member 1; a driving rotating part 2, which contacts the bottom of the bolt 11 and rotates in the first direction or the second direction by being forced when the bolt 11 is tightened; a color linkage part 3, which is arranged on the driving rotating part 2, has a color development area 31, and is connected to the driving rotating part 2 through a first one-way linkage part 32, the first one-way linkage part 32 makes the driving rotating part 2 not drive the color development linkage part 3 when rotating in the first direction, but drives the color development linkage part 3 to rotate in the second direction when rotating in the second direction; a shell part 4, which at least partially covers the driving rotating part 2 and the color development linkage part 3, and has an observation area 41 on the surface. The initial position of the color development area 31 is offset from the observation area 41. When the color development linkage part 3 rotates in the second direction, the color development area 31 is aligned with the observation area 41 to display the state change. When bolt 11 is tightened, the rotating portion 2 is forced to rotate in a first direction, and the one-way linkage prevents the color-developing linkage portion 3 from moving. When bolt 11 is loosened, the rotating portion 2 is driven to rotate in a second direction, which in turn is driven by the one-way linkage to rotate the color-developing linkage portion 3 in the second direction, aligning the color-developing area 31 with the observation area 41. The display status change indicates the loosening condition. This device achieves looseness detection through mechanical linkage, has a simple structure, intuitive response, and improves the connection reliability of ground wire 12.

[0032] In this embodiment, the bolt 11 is a standard fastener used to firmly fix the grounding wire 12 to the main body of the grounding member 1; the grounding wire 12 is a conductive component to ensure electrical connection.

[0033] The bolt 11 is tightened or loosened by rotating, and the rotation direction is divided into clockwise (first direction, tightening) and counterclockwise (second direction, loosening).

[0034] The bolt 11 serves as a fixing element, directly contacting the ground wire 12 and the downstream driving rotating part 2, transmitting the rotational force and driving the subsequent mechanism to operate.

[0035] The driving rotating part 2 is a rotating mechanical component, which is in direct contact with the lower end of the bolt 11 to ensure force transmission efficiency.

[0036] When the bolt 11 rotates, the driving rotating portion 2 is driven by the bolt 11 to rotate clockwise (first direction) or counterclockwise (second direction).

[0037] The driving rotating part 2 acts as a force transmission medium to transmit the rotational motion of the bolt 11 to the color development linkage part 3. It cooperates with the first one-way linkage 32 to achieve direction-selective driving.

[0038] The color-developing linkage part 3 is a rotatable component, which is arranged on the driving rotating part 2 and has a color-developing area 31 (for example, red or fluorescent coating, used for status identification) on its surface.

[0039] It is connected to the driving rotating part 2 through the first one-way linkage 32, and is driven only when the driving rotating part 2 rotates in the second direction (counterclockwise) and rotates in the same direction; it is not driven and remains stationary when rotating in the first direction (clockwise).

[0040] The color display linkage part 3 realizes status display through the displacement of the color display area 31, cooperates with the first one-way linkage part 32 to realize one-way motion control, and cooperates with the observation area 41 of the outer shell part 4 to complete status visualization.

[0041] The color display area 31 can be a coating of different colors or a reflective material.

[0042] The first one-way linkage member 32 is a mechanical limit or clutch structure, such as a one-way ratchet or a one-way bearing, and is installed between the driving rotating part 2 and the color development linkage part 3 .

[0043] When the driving rotating part 2 rotates in the first direction, the first one-way linkage 32 prevents the color development linkage part 3 from moving; when rotating in the second direction, the first one-way linkage 32 allows force transmission, driving the color development linkage part 3 to rotate synchronously.

[0044] The first one-way linkage member 32 ensures that the color development linkage part 3 is activated only when the bolt 11 is loosened (in the second direction), thereby preventing malfunction during tightening.

[0045] The outer shell 4 is a fixed component that at least partially covers or completely encloses the driving rotating part 2 and the color development linkage part 3, and an observation area 41 (such as a transparent opening) is provided on the surface.

[0046] In addition, a torsion spring is connected to the bottom of the color-developing linkage part 3, so that the color-developing linkage part 3 can automatically reset when not subjected to external force, making it convenient for next use.

[0047] The color development area 31 is misaligned with the observation area 41 in the initial state and can be gradually exposed after rotation.

[0048] The outer shell 4 provides protection and positioning, and the observation area 41 cooperates with the color development area 31 of the color development linkage part 3 to display the loosening state of the bolt 11 through position alignment.

[0049] When the bolt 11 is tightened (clockwise rotation), the driving rotating part 2 rotates in the first direction, and the first one-way linkage 32 prevents the color development linkage part 3 from moving. The color development area 31 remains misaligned with the observation area 41, and the state does not change; when the bolt 11 is loosened (counterclockwise rotation), the driving rotating part 2 rotates in the second direction, and the color development linkage part 3 rotates synchronously with the first one-way linkage 32, so that the color development area 31 and the observation area 41 of the outer shell 4 are exposed, indicating a loose state.

[0050] refer to Figure 1-2 In one embodiment provided in the present application, the driving rotating part 2 includes a touch component 21, which is located below the bolt 11. When the bolt 11 is tightened clockwise, it presses the touch component 21 downward and drives the touch component 21 to rotate clockwise through friction; a turntable 22, which is fixedly connected to the bottom of the touch component 21, and the turntable 22 is rotatably set on the outer shell 4.

[0051] In this embodiment, the trigger assembly 21 is a mechanical force-bearing component, which is located directly below the bolt 11 and directly contacts the bottom of the bolt 11 .

[0052] When the bolt 11 rotates clockwise (first direction, tightening), the bolt 11 presses down the trigger assembly 21 and, at the same time, drives the trigger assembly 21 to rotate clockwise through friction; when the bolt 11 rotates counterclockwise (second direction, loosening), the trigger assembly 21 rotates in the opposite direction with the bolt 11.

[0053] The trigger assembly 21 acts as a force transmission medium between the bolt 11 and the turntable 22 , receiving the rotation and downward force of the bolt 11 , forming frictional contact with the bottom of the bolt 11 , and ensuring that the rotational motion is transmitted to the turntable 22 .

[0054] The trigger component 21 may be a rubber pad with a high friction coefficient or a rough metal surface to enhance friction; its shape may be circular or polygonal to fit the bottom of the bolt 11 .

[0055] The turntable 22 is a circular or disc-shaped rotating component, which is connected to the bottom of the touch assembly 21 by a fixed connection (such as screws, welding or integral molding), installed on the shell part 4 and can rotate relative to the shell part 4.

[0056] The turntable 22 rotates synchronously with the trigger assembly 21 . When the bolt 11 rotates clockwise, the turntable 22 rotates in a first direction. When the bolt 11 rotates counterclockwise, the turntable 22 rotates in a second direction.

[0057] The turntable 22 serves as the output component of the driving rotating part 2, transmitting the rotational motion of the touch assembly 21 to the downstream first one-way linkage 32 and the color-developing linkage part 3; its rotational mounting design with the outer shell 4 ensures smooth movement and provides a stable driving platform for the color-developing linkage part 3.

[0058] The driving rotating unit 2 transmits rotational force through the coordinated action of the trigger assembly 21 and the turntable 22. When the bolt 11 is tightened clockwise, the bolt 11 presses down on the trigger assembly 21, driving it clockwise through friction. The turntable 22 then rotates in a first direction, but is restricted by the first one-way linkage 32 and does not drive the color-developing linkage unit 3. When the bolt 11 is loosened counterclockwise, the trigger assembly 21 and turntable 22 rotate in a second direction, driving the color-developing linkage unit 3 through the first one-way linkage 32, causing the color-developing area 31 to align with the observation area 41 of the outer shell 4, indicating that the bolt 11 is loose.

[0059] refer to Figure 4 As an optional embodiment, the device further includes a sealing disk 23, which is disposed above the color development linkage portion 3 and rotatably connected to the housing portion 4. The sealing disk 23 covers the color development area 31 to prevent dust from accumulating, thereby ensuring that the color development area 31 is clearly visible. The sealing disk 23 prevents dust from entering the color development area 31 through the rotational connection, ensuring that the color display is clear when the color development area 31 is aligned with the observation area 41, thereby improving the accuracy and long-term stability of the detection.

[0060] In this embodiment, the sealing disk 23 is a flat circular or similar shaped cover component that covers the color development area 31 of the color development linkage part 3 and is made of transparent or partially transparent materials such as transparent plastic or glass to maintain the visibility of the color development area 31.

[0061] The sealing disc 23 is connected to the housing portion 4 via a rotational connection (such as a bearing, a pivot or a sliding groove) and can rotate relative to the housing portion 4, but usually remains stationary and is rotated only when necessary (such as for maintenance or adjustment).

[0062] The sealing disk 23 covers the color development area 31 of the color development linkage part 3 to prevent the deposition of external dust or impurities, and together with the outer shell 4 forms a closed or semi-closed space to protect the surface cleanliness of the color development area 31; it cooperates with the observation area 41 of the outer shell 4 to ensure that the color development area 31 is clearly visible when aligned.

[0063] The sealing disk 23 is located above the color development linkage part 3, directly covering the color development area 31, protecting its surface from the external environment, and ensuring that the color of the color development area 31 is clearly displayed when it is rotated to align with the observation area 41.

[0064] The sealing disk 23 is fixed to the housing portion 4 by a rotational connection. The housing portion 4 provides a stable installation base and positioning reference. Its observation area 41 cooperates with the transparent part or opening of the sealing disk 23 to ensure the visibility of the color development area 31.

[0065] The sealing disk 23, through its rotational connection with the outer shell 4, covers the color-developing area 31 of the color-developing linkage portion 3, forming a protective barrier to prevent dust, impurities, or other environmental factors from accumulating on the surface of the color-developing area 31. When the bolt 11 loosens, the driving rotating portion 2, via the first one-way linkage 32, drives the color-developing linkage portion 3 to rotate counterclockwise in the second direction, aligning the color-developing area 31 with the observation area 41 of the outer shell 4. The transparent design of the sealing disk 23, in conjunction with the observation area 41, ensures that the color change of the color-developing area 31 is clearly visible, thereby accurately indicating the loosening status of the bolt 11. The sealing disk 23 remains stationary throughout the entire process, allowing adjustment or maintenance as necessary through the rotational connection.

[0066] refer to Figure 4-5 As an optional embodiment, a second one-way linkage 24 is provided between the sealing disk 23 and the color-developing linkage 3. This second one-way linkage 24 allows the sealing disk 23 to remain stationary when the color-developing linkage 3 rotates counterclockwise. Clockwise rotation of the color-developing linkage 3 drives the sealing disk 23 to rotate clockwise, causing the sealing disk 23 to rub against the outer shell 4 to clean surface dust. The second one-way linkage 24 causes the sealing disk 23 to rub against the outer shell 4 when the color-developing linkage 3 rotates clockwise, achieving a self-cleaning function, reducing dust interference with observation and extending the service life of the device.

[0067] In this embodiment, the second one-way linkage member 24 is a mechanical limit or clutch structure, which is installed between the sealing disk 23 and the color development linkage part 3 to control the motion transmission between the two.

[0068] The second one-way linkage 24 can be a mechanical component such as a one-way ratchet, a one-way bearing or a friction clutch, which realizes one-way force transmission through tooth engagement (such as a ratchet), ball limit (such as a one-way bearing) or friction contact.

[0069] This component ensures that the movement of the color development linkage part 3 is selectively transmitted to the sealing disk 23, driving the sealing disk 23 to move only in a specific direction (clockwise) and keeping the sealing disk 23 stationary in the other direction (counterclockwise).

[0070] The second one-way linkage 24 is located between the color development linkage part 3 and the sealing disk 23, and forms a motion chain with the driving rotating part 2, the color development linkage part 3 and the outer shell part 4. It receives the rotation input of the color development linkage part 3 and decides whether to transmit the motion to the sealing disk 23.

[0071] The color development linkage part 3 is a rotatable component with a color development area 31 provided on its surface. It is connected to the driving rotation part 2 through a first one-way linkage part 32 .

[0072] When the driving rotating part 2 rotates in the second direction (counterclockwise), the color development linkage part 3 is driven to rotate counterclockwise synchronously; when the driving rotating part 2 rotates in the first direction (clockwise), the color development linkage part 3 remains stationary.

[0073] When the color development linkage part 3 rotates in the clockwise direction, the rotational force is transmitted to the sealing disk 23 through the second one-way linkage part 24, driving the sealing disk 23 to rotate clockwise; when the color development linkage part 3 rotates counterclockwise, the second one-way linkage part 24 prevents the force transmission and the sealing disk 23 remains stationary.

[0074] When the sealing disk 23 rotates clockwise, friction is generated with the contact surface of the housing portion 4 .

[0075] The sealing disk 23 protects the color development area 31 from dust or impurities, and at the same time removes surface attachments through friction when rotating clockwise, thereby maintaining the clarity of the observation area 41.

[0076] refer to Figure 4-5 As an optional embodiment, a cleaning layer is fixed to the outer shell 4. The cleaning layer is located in the friction area between the sealing disk 23 and the outer shell 4 to enhance dust removal. The cleaning layer enhances dust removal through friction with the sealing disk 23, ensuring a clean surface of the sealing disk 23 and further improving the visibility of the color-developing area 31 within the observation area 41.

[0077] In this embodiment, the cleaning layer is fixed on the outer shell 4 and is located in the friction contact area between the sealing disk 23 and the outer shell 4 to enhance the friction effect when the sealing disk 23 rotates.

[0078] The cleaning layer can be a flexible or semi-rigid material, such as felt, fiber cloth, soft rubber layer or a coating with a micro texture, fixed to the inner surface of the shell part 4, and combined with the shell part 4 by bonding, embedding or mechanical fixing.

[0079] The cleaning layer increases the friction with the sealing disk 23 through its material properties or surface texture, thereby promoting the removal of surface attachments when the sealing disk 23 rotates.

[0080] The cleaning layer is located in the contact area between the outer shell 4 and the sealing disk 23 , and cooperates with the clockwise rotation of the sealing disk 23 to enhance the surface cleaning effect through friction while maintaining the clarity of the observation area 41 of the outer shell 4 .

[0081] Reference Figure 6-7This embodiment provides a grounding cable detection device, comprising a trigger assembly 21, including a first component 211 and a second component 212, wherein the first component 211 and the second component 212 are connected to each other for relative movement, and the first component 211 can move in a specific direction relative to the second component 212; an adsorption layer 5 is provided on the first component 211 and is used to form a releasable connection with the surface of the bolt 11; a negative pressure generating unit 6 is provided inside the first component 211 and is linked to the second component 212, wherein the negative pressure generating unit 6 generates negative pressure through the relative movement of the first component 211 and the second component 212, so that the adsorption layer 5 is closely attached to the surface of the bolt 11; and a reset member 7 cooperates with the first component 211 and the second component 212 to drive the first component 211 to return to its initial position; wherein, when the bolt 11 is loosened, the first component 211 synchronously follows the movement of the bolt 11 due to the contact between the adsorption layer 5 and the bolt 11, thereby detecting the loosening of the bolt 11.

[0082] In this embodiment, the trigger assembly 21 is composed of a first component 211 and a second component 212 , which are connected by a relatively movable connection. The trigger assembly 21 is located below the bolt 11 and serves as a force-bearing component for driving the rotating part 2 .

[0083] The first component 211 is a movable mechanical component, which can be a rod and is in direct contact with the bottom of the bolt 11.

[0084] The second component 212 is connected to the first component 211 through a sliding groove to support the relative movement of the first component 211.

[0085] The first component 211 can move in a specific direction relative to the second component 212 , and simultaneously rotate synchronously with the rotational movement (clockwise or counterclockwise) of the bolt 11 .

[0086] The trigger assembly 21 receives the rotation and downward force of the bolt 11 through the first component 211 , and triggers the action of the mechanism (such as the negative pressure generating unit 6 ) through the relative movement between the first component 211 and the second component 212 .

[0087] The first component 211 forms a releasable connection with the bolt 11 through the adsorption layer 5 , and the second component 212 is fixedly connected to the turntable 22 , so that the movement of the first component 211 is transmitted to the driving rotating part 2 .

[0088] The adsorption layer 5 is disposed on the first component 211 and is used to form a releasable connection with the bottom surface of the bolt 11 .

[0089] The adsorption layer 5 can be a suction cup, a magnetic adsorption member or an adhesive pad, such as a rubber suction cup, an electromagnet or a high-friction adhesive coating, which is directly fixed to the top surface of the first component 211 and contacts the bottom of the bolt 11 .

[0090] The adsorption layer 5 moves along with the movement of the first component 211 . When the bolt 11 rotates or loosens, the adsorption force causes the first component 211 to closely follow the movement of the bolt 11 (including rotation and possible axial displacement).

[0091] The adsorption layer 5 ensures a tight fit between the first component 211 and the bolt 11, thereby achieving synchronous transmission of motion.

[0092] The adsorption layer 5 is in direct contact with the bottom of the bolt 11 and cooperates with the negative pressure generating unit 6 through the first component 211 to enhance the fitting effect; its movement is ultimately transmitted to the turntable 22 and the color development linkage part 3 through the touch assembly 21.

[0093] The negative pressure generating unit 6 is disposed inside the first component 211 and is linked to the second component 212 to generate negative pressure to enhance the lamination effect of the adsorption layer 5 .

[0094] The restoring member 7 cooperates with the first component 211 and the second component 212 to drive the first component 211 to return to its initial position.

[0095] refer to Figure 7 As an optional embodiment, the negative pressure generating unit 6 includes a piston cylinder 61, which is fixedly arranged inside the first component 211, and a piston block 62 is slidably connected to the inside of the piston cylinder 61. The bottom of the piston block 62 is fixedly connected to a piston rod 63, and the piston rod 63 movably passes through the piston cylinder 61 and is fixedly connected to the second component 212. When the first component 211 is forced to slide down, the piston block 62 slides up in the piston cylinder 61; an air hole 65 is arranged between the piston cylinder 61 and the adsorption layer 5, and the air hole 65 connects the piston cylinder 61 and the adsorption layer 5. When the piston block 62 slides up, the gas in the adsorption layer 5 is extracted, so that a negative pressure state is formed at the contact point between the adsorption layer 5 and the bolt 11, so as to achieve a close fit between the first component 211 and the bolt 11.

[0096] In this embodiment, the negative pressure generating unit 6 is disposed inside the first component 211 , and cooperates with the second component 212 and the adsorption layer 5 to generate negative pressure through the relative movement of the first component 211 and the second component 212 .

[0097] The negative pressure generating unit 6 includes a piston cylinder 61 , a piston block 62 , a piston rod 63 and an air hole 65 .

[0098] The piston cylinder 61 is a cylindrical cavity structure fixed inside the first component 211 and can be made of metal or high-strength plastic. It has a smooth wall surface inside to support sliding motion.

[0099] The piston block 62 is a sealing block that is slidably fitted in the piston cylinder 61 and can be a circular piston disk with a sealing ring (such as a rubber or silicone ring) provided on the surface to ensure air tightness.

[0100] The piston rod 63 is a slender rod-shaped structure and can be made of metal or hard plastic. One end is fixedly connected to the piston block 62 , and the other end passes through the bottom of the piston cylinder 61 and is fixedly connected to the second component 212 .

[0101] The air hole 65 is a channel connecting the piston cylinder 61 and the adsorption layer 5 , which can be a single pipe or a porous structure and is provided on the side wall of the piston cylinder 61 .

[0102] The negative pressure generating unit 6 changes the internal air pressure by the sliding movement of the piston block 62 in the piston cylinder 61 , and transmits the negative pressure to the adsorption layer 5 through the air hole 65 .

[0103] The negative pressure generating unit 6 is embedded in the first component 211 and connected to the second component 212 through the piston rod 63. It is driven by the relative movement of the first component 211 and the second component 212. It is connected to the adsorption layer 5 through the air hole 65, affecting the fitting effect between the adsorption layer 5 and the bolt 11.

[0104] The piston cylinder 61 is fixed inside the first component 211 and moves as a whole with the first component 211 (axial displacement).

[0105] The piston block 62 slides axially in the piston cylinder 61 . When the first component 211 is pressed down or moved by the bolt 11 , the piston block 62 slides upward relative to the piston cylinder 61 .

[0106] One end of the piston rod 63 is fixed to the piston block 62, and the other end is fixed to the second component 212, extending through the bottom of the piston cylinder 61. When the first component 211 slides downward relative to the second component 212, the piston rod 63 remains fixedly connected to the second component 212, driving the piston block 62 to slide upward in the piston cylinder 61.

[0107] The piston cylinder 61 provides a sliding space, and the piston block 62 and the piston rod 63 change the air pressure in the piston cylinder 61 through relative movement, forming a negative pressure environment.

[0108] The piston cylinder 61 moves integrally with the first component 211 , and the piston rod 63 is connected to the second component 212 , and they jointly respond to the movement of the bolt 11 ; the sliding of the piston block 62 affects the air pressure state of the adsorption layer 5 through the air hole 65 .

[0109] The air hole 65 serves as a fixed channel. When the piston block 62 slides upward, the gas in the piston cylinder 61 is extracted and the negative pressure is transmitted to the interior of the adsorption layer 5 through the air hole 65 .

[0110] The air hole 65 enables gas communication between the piston cylinder 61 and the adsorption layer 5 , ensuring that the negative pressure is effectively transmitted to the adsorption layer 5 .

[0111] The adsorption layer 5 (such as a suction cup) receives the negative pressure of the negative pressure generating unit 6 through the air hole 65, thereby enhancing the adhesion force with the bottom of the bolt 11 and ensuring that the first component 211 rotates counterclockwise in synchronization with the bolt 11.

[0112] The reset member 7 (such as a spring or a magnetic device) drives the first component 211 to restore the initial position, indirectly affecting the position of the piston block 62 in the piston cylinder 61, preparing for the next negative pressure generation.

[0113] An air bag 64 is fixed to the bottom of the piston cylinder 61 , and when the piston block 62 slides upward, the gas on the upper portion is pushed into the air bag 64 , thereby preventing interference with the movement of the piston block 62 due to excessive pressure.

[0114] refer to Figure 6 As an optional embodiment, it further includes a mortgage shell 8, which is rotatably connected to the outer shell portion 4, and a mortgage groove is provided on the mortgage shell 8, and the mortgage groove is used to accommodate the axial telescopic sliding of the first component 211; wherein, the mortgage shell 8 adapts to the movement of the first component 211 through a rotational connection, and the mortgage groove limits the sliding range of the first component 211 to improve the stability of the detection.

[0115] In this embodiment, the mortgage shell 8 adapts to the movement trajectory of the first component 211 by rotating the connected outer shell part 4. The mortgage groove provides sliding space for the first component 211 and limits its sliding range, thereby ensuring that the first component 211 moves stably during the detection process and improving the accuracy and reliability of the loosening detection of the bolt 11.

[0116] refer to Figure 7 As an optional embodiment, the reset member 7 is a compression spring, one end of the compression spring abuts the first component 211, and the other end abuts the second component 212. The compression spring is compressed when the first component 211 slides down, and drives the first component 211 to reset axially upward when released.

[0117] In this embodiment, when the first component 211 slides downward under force, the compression spring is compressed to store elastic potential energy; when the external force is released, the compression spring releases the elastic potential energy, driving the first component 211 to return axially upward, ensuring that the touch assembly 21 returns to its initial state and prepares for the next detection.

[0118] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A detection mechanism, characterized in that: include, A grounding member (1), comprising a bolt (11) and a grounding wire (12); The driving rotating part (2) contacts the lower side of the bolt (11) and rotates in a first direction or a second direction by receiving a force when the bolt (11) is tightened; The color development linkage part (3) is arranged on the driving rotating part (2), has a color development area (31), and is connected to the driving rotating part (2) via a first one-way linkage part (32). The first one-way linkage part (32) drives the color development linkage part (3) to rotate when the driving rotating part (2) rotates in the second direction; The outer shell (4) is provided with the driving rotating part (2) and the color-developing linkage part (3) inside the outer shell (4). An observation area (41) is provided on the surface. The initial position of the color-developing area (31) is offset from the observation area (41). When the color-developing linkage part (3) rotates in the second direction, the color-developing area (31) and the observation area (41) are aligned to display a state change.

2. The detection mechanism according to claim 1, characterized in that: The driving rotating part (2) includes: The touch assembly (21) is located below the bolt (11). When the bolt (11) is tightened clockwise, it presses down the touch assembly (21) and drives the touch assembly (21) to rotate clockwise through friction.

3. The detection mechanism according to claim 2, characterized in that: It also includes a turntable (22), which is fixedly connected to the bottom of the touch assembly (21), and the turntable (22) is rotatably arranged on the outer shell (4).

4. The detection mechanism according to claim 3, characterized in that: It also includes a sealing disk (23), which is arranged above the color development linkage portion (3) and is rotatably connected to the outer shell portion (4).

5. The detection mechanism according to claim 4, characterized in that: A second one-way linkage member (24) is provided between the sealing disk (23) and the color development linkage portion (3). The second one-way linkage member (24) enables the sealing disk (23) to remain stationary when the color development linkage portion (3) rotates counterclockwise, and drives the sealing disk (23) to rotate when the color development linkage portion (3) rotates clockwise.

6. The detection mechanism according to claim 5, characterized in that: A cleaning layer is fixed on the outer shell (4), and the cleaning layer is located in the friction area between the sealing disk (23) and the outer shell (4).

7. A grounding cable detection device, characterized in that: A detection mechanism comprising any one of claims 1 to 6, and A touch assembly (21) comprises a first component (211) and a second component (212), wherein the first component (211) and the second component (212) are connected to each other in a relative motion; an adsorption layer (5) disposed on top of the first component (211); A negative pressure generating unit (6) is arranged inside the first component (211) and is linked to the second component (212). The negative pressure generating unit (6) generates negative pressure through the relative movement of the first component (211) and the second component (212); The reset member (7) cooperates with the first member (211) and the second member (212) to drive the first member (211) to return to an initial position.

8. The grounding cable detection device according to claim 7, characterized in that: The negative pressure generating unit (6) comprises: A piston cylinder (61) is fixedly arranged inside the first component (211), a piston block (62) is slidably connected inside the piston cylinder (61), a piston rod (63) is fixedly connected to the bottom of the piston block (62), the piston rod (63) movably passes through the piston cylinder (61) and is fixedly connected to the second component (212), and an air bag (64) is fixed to the bottom of the piston cylinder (61); The air hole (65) is provided between the piston cylinder (61) and the adsorption layer (5), and the air hole (65) communicates with the piston cylinder (61) and the adsorption layer (5).

9. The grounding cable detection device according to any one of claim 8, characterized in that: It also includes a mortgage shell (8) rotatably connected to the outer shell (4), and a mortgage groove is provided on the mortgage shell (8), and the mortgage groove is used to accommodate the first component (211) to slide in an axial direction.

10. The grounding cable detection device according to any one of claims 7 to 9, characterized in that: The reset member (7) is a compression spring, one end of which abuts the first member (211) and the other end abuts the second member (212). The compression spring is compressed when the first member (211) slides down, and drives the first member (211) to reset axially when released.

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