Compression structure and inspection device

Abstract

The application provides a pressing structure and an inspection device, and relates to the technical field of inspection devices. The support of the pressing structure is arranged on the inspection device; two pressing assemblies are symmetrically arranged along the axis of the support; the pressing part of the pressing assembly is rotationally connected to the support through a corresponding connecting part; the pressing part is provided with a rolling part; the rolling part and the driving wheel of the inspection device are respectively in contact with the two sides of the power transmission line; the rolling part is used to roll along the extension direction of the power transmission line under the driving of the driving wheel; the connecting part comprises at least one elastic reset part; the elastic reset part is configured to elastically deform under the action of an external force during the rolling of the rolling part, so as to allow the pressing part to rotate relative to the support; and when the external force is eliminated, the pressing part is driven to reset, so that the rolling part is in elastic contact with the power transmission line. In this way, the two pressing assemblies are arranged on one support, the overall pressing structure is more compact, and the driving wheel can be matched with the power transmission line to achieve a better clamping effect.

Description

Technical Field

[0001] This application relates to the field of inspection equipment technology, and in particular to a clamping structure and inspection equipment. Background Technology

[0002] To ensure the stability and safety of power transmission lines, regular inspections are necessary.

[0003] In existing technologies, inspection equipment is typically used to inspect power transmission lines. This equipment includes opposing drive wheels and clamping wheels, which respectively abut against opposite sides of the power transmission line to clamp it. During installation, the drive wheels are first brought into contact with the power transmission line to mount the inspection equipment. Then, the clamping wheels are moved towards the power transmission line to make contact with it.

[0004] However, when the aforementioned clamping rollers are used in conjunction with the drive rollers, their clamping effect on the power transmission lines is poor, affecting the stability of the inspection equipment as it moves along the power transmission lines. Utility Model Content

[0005] This application provides a clamping structure and inspection equipment to address the shortcomings of related technologies.

[0006] On the one hand, this application provides a clamping structure, including:

[0007] Support components are used to install on inspection equipment;

[0008] Two clamping assemblies are symmetrically arranged along the axis of the support member. Each clamping assembly includes a clamping member and a connecting member. The clamping member is rotatably connected to the support member through a corresponding connecting member. The clamping member has a rolling part, and the rolling part and the drive wheel of the inspection equipment respectively contact the two sides of the transmission line. The rolling part is used to roll along the extension direction of the transmission line under the drive of the drive wheel. The connecting member includes at least one elastic reset part, which is configured to elastically deform under the action of external force during the rolling of the rolling part to allow the clamping member to rotate relative to the support member. When the external force is removed, the clamping member is driven to reset, so that the rolling part maintains elastic contact with the transmission line.

[0009] In one possible implementation, the clamping structure provided in this application has a torsion spring as its elastic reset part.

[0010] In one possible implementation, the clamping structure provided in this application includes a clamping member comprising a support portion, a rolling portion rotatably disposed on the support portion; the connecting member further includes a first connecting portion connected to the support portion, the support portion being rotatably sleeved on the first connecting portion; a torsion spring is sleeved on the first connecting portion, one end of the torsion spring being connected to the support portion and the other end being connected to the support portion.

[0011] In one possible implementation, the clamping structure provided in this application has a support portion configured to drive a rolling portion to rotate between a first limit position and a second limit position under the drive of a torsion spring, so as to adapt to power transmission lines of different diameters and maintain elastic contact.

[0012] In one possible implementation, the clamping structure provided in this application includes a support portion comprising:

[0013] Two first support sections are rotatably sleeved on the first connecting part;

[0014] The second support section is connected between the two first support sections at the ends opposite to the first connecting part, and the rolling part is rotatably sleeved on the second support section.

[0015] In one possible implementation, the clamping structure provided in this application includes a first sub-segment and a second sub-segment arranged sequentially in the first support section. The first sub-segment is rotatably sleeved on the first connecting part, and one end of the second sub-segment facing away from the first connecting part is connected to the second support section. A torsion spring is sleeved on the first sub-segment, one end of the torsion spring is hooked to the second sub-segment, and the other end abuts against the support member.

[0016] In one possible implementation, the clamping structure provided in this application further includes a second connecting portion connected to the support member, the second connecting portion being located above the first connecting portion; the torsion spring is configured to drive the second segment to abut against the second connecting portion when the external force is removed and the rolling portion disengages from the power transmission line, so that the rolling portion is in a first limiting position.

[0017] In one possible implementation, the clamping structure provided in this application has a second limiting part on the support member, the second limiting part being located below the first connecting part; the torsion spring is configured to allow the second segment to rotate to abut against the second limiting part when the external force reaches a preset value, so that the rolling part is in the second limiting position.

[0018] In one possible implementation, the clamping structure provided in this application has two torsion springs, which are sequentially sleeved on the first connecting part along the axial direction of the first connecting part.

[0019] In one possible implementation, the clamping structure provided in this application has two clamping members whose corresponding second segments extend in opposite directions at an angle to the horizontal plane.

[0020] In one possible implementation, the clamping structure provided in this application has an L-shaped first support segment.

[0021] In one possible implementation, the clamping structure provided in this application has an arc-shaped groove on the periphery of the rolling part that matches the power transmission line, and the rolling part contacts the power transmission line through the arc-shaped groove.

[0022] On the other hand, this application provides an inspection device, including a device body and a clamping structure disposed on the device body as described in any of the first aspects.

[0023] The clamping structure and inspection equipment provided in this application have a support member for mounting on the inspection equipment. Two clamping components are symmetrically arranged along the axis of the support member. Each clamping component includes a clamping member and a connecting member. The clamping member is rotatably connected to the support member via a corresponding connecting member. The rolling part on the clamping member and the drive wheel of the inspection equipment respectively contact both sides of the power transmission line to clamp the power transmission line. By mounting the two clamping components on one support member, the overall clamping structure becomes more compact, and a larger contact area is formed between the two rolling parts and the power transmission line, making it less likely for the power transmission line to detach from the rolling parts under external force, thus improving the stability of the clamping structure when clamping the power transmission line with the drive wheel. The connecting member includes at least one elastic reset part. The rolling part is used to roll along the extension direction of the power transmission line under the drive of the drive wheel. During the rolling process, the elastic reset part undergoes elastic deformation under external force to allow the clamping member to rotate relative to the support member. When the external force is removed, the clamping member is driven to reset, maintaining elastic contact between the rolling part and the power transmission line. In this way, when the wire diameter of the transmission line changes, the position of the rolling part can be adjusted to ensure that the rolling part is always in contact with the transmission line, so as to cooperate with the drive wheel to achieve a better clamping effect on the transmission line. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is a schematic diagram of the clamping structure provided in the embodiments of this application;

[0026] Figure 2 for Figure 1 A structural diagram from another angle;

[0027] Figure 3 A diagram showing the fit between the clamping structure and the power transmission line provided in the embodiments of this application;

[0028] Figure 4 for Figure 1 Another structural diagram from another angle;

[0029] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0031] Figure 7 for Figure 4 Enlarged view of point C in the middle;

[0032] Figure 8 A schematic diagram of the structure of the inspection equipment provided in this application embodiment installed on the power transmission line.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100 - Compression structure;

[0035] 110 - Support component; 111 - Second limiting part; 112 - Fixing part;

[0036] 120 - Clamping assembly; 121 - Clamping element; 1211 - Rolling part; 1212 - Arc groove; 1213 - Support part; 1214 - First support section; 1215 - Second support section; 1216 - First sub-segment; 1217 - Second sub-segment; 122 - Connector; 1221 - First connecting part; 1222 - Torsion spring; 1223 - Second connecting part;

[0037] 200 - Inspection equipment;

[0038] 210 - Equipment body; 211 - Drive wheel;

[0039] 300-Transmission line. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0044] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0045] As mentioned in the background section, in the prior art, inspection equipment is typically used to inspect power transmission lines. The inspection equipment includes opposing drive wheels and clamping wheels, which respectively abut against opposite sides of the power transmission line to clamp it. During installation, the drive wheels are first brought into contact with the power transmission line to mount the inspection equipment on it. Then, the clamping wheels are moved towards the power transmission line to make contact with it.

[0046] However, when the drive wheel moves the clamping wheel along the length of the transmission line, on the one hand, the small contact area between a single clamping wheel and the transmission line makes the transmission line susceptible to external forces, such as wind, causing it to detach from the clamping wheel. This results in the clamping wheel failing to work with the drive wheel to clamp the transmission line, with only the drive wheel hovering above it, affecting the clamping effect. Consequently, the stability of the clamping structure formed by the clamping wheel and drive wheel deteriorates, making the inspection equipment prone to twisting, tilting, and slipping during movement. On the other hand, if the diameter of the transmission line changes along its length, for example, when the inspection equipment moves from a large-diameter section to a small-diameter section, the relative position between the clamping wheel and drive wheel remains unchanged. This creates a gap between the clamping wheel and the small-diameter section, with only the drive wheel hovering above the transmission line, affecting the clamping effect and further deteriorating the stability of the clamping structure formed by the clamping wheel and drive wheel.

[0047] Therefore, when the aforementioned clamping rollers are used in conjunction with the drive wheel, their clamping effect on the power transmission line is poor, affecting the stability of the inspection equipment as it moves on the power transmission line.

[0048] In view of this, this application provides a clamping structure and an inspection device. The support member of the clamping structure is mounted on the inspection device. Two clamping components are symmetrically arranged along the axis of the support member. Each clamping component includes a clamping member and a connecting member. The clamping member is rotatably connected to the support member via a corresponding connecting member. The rolling part on the clamping member and the drive wheel of the inspection device respectively contact both sides of the power transmission line to clamp the power transmission line. Thus, by mounting the two clamping components on one support member, the overall clamping structure becomes more compact, and a larger contact area is formed between the two rolling parts and the power transmission line, making it less likely for the power transmission line to detach from the rolling parts under external force, thereby improving the stability of the clamping structure when clamping the power transmission line with the drive wheel. The connecting member includes at least one elastic reset part. The rolling part is used to roll along the extension direction of the power transmission line under the drive of the drive wheel. During the rolling process, the elastic reset part undergoes elastic deformation under external force to allow the clamping member to rotate relative to the support member. When the external force is removed, the clamping member is driven to reset, maintaining elastic contact between the rolling part and the power transmission line. In this way, when the wire diameter of the transmission line changes, the position of the rolling part can be adjusted to ensure that the rolling part is always in contact with the transmission line, so as to cooperate with the drive wheel to achieve a better clamping effect on the transmission line.

[0049] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0050] See Figure 1 and Figure 2 The clamping structure 100 provided in this application embodiment includes a support member 110 and two clamping assemblies 120. The support member 110 is used to be mounted on the inspection equipment 200. The two clamping assemblies 120 are symmetrically arranged along the axis of the support member 110. Each clamping assembly 120 includes a clamping member 121 and a connecting member 122. The clamping member 121 is rotatably connected to the support member 110 through the corresponding connecting member 122. The clamping member 121 has a rolling part 1211, and the rolling part 1211 and the drive wheel 2 of the inspection equipment are connected. 11 respectively contacts both sides of the transmission line 300; the rolling part 1211 is used to roll along the extension direction of the transmission line 300 under the drive of the drive wheel 211; the connecting member 122 includes at least one elastic reset part, which is configured to undergo elastic deformation under the action of external force during the rolling of the rolling part 1211, so as to allow the clamping member 121 to rotate relative to the support member 110; and when the external force is removed, the clamping member 121 is driven to reset, so that the rolling part 1211 and the transmission line 300 maintain elastic contact.

[0051] Specifically, the support member 110 can be connected to the main frame of the inspection equipment 200. The support member 110 can be made of metal alloy material to have good structural strength. It is understood that when the clamping structure 100 is set on the inspection equipment 200, and the inspection equipment 200 is hung on the transmission line 300 via the drive wheel 211, the axial direction of the support member 110 is perpendicular to the extension direction of the transmission line 300. The extension direction of the transmission line 300 refers to its length direction and axial direction.

[0052] By symmetrically arranging the two clamping assemblies 120 along the axis of the support member 110, a symmetrical load-bearing structure is formed, which helps to balance the forces on both sides and improve the overall operational stability. The clamping assembly 120 includes a clamping member 121 and a connecting member 122. The clamping member 121 is rotatably connected to the support member 110 through the corresponding connecting member 122, allowing the clamping member 121 to swing relative to the support member 110 within a certain angle range to adapt to the attitude changes of the transmission line 300 in space.

[0053] Furthermore, the clamping member 121 is provided with a rolling part 1211 for contacting the outer surface of the power transmission line 300. The rolling part 1211 protrudes from the main body of the clamping member 121. For example, the rolling part 1211 can be designed to form a surface contact with the power transmission line 300, thereby improving the contact area and clamping reliability.

[0054] For example, see Figure 2 and Figure 3 The rolling part 1211 has an arc-shaped groove 1212 on its periphery that matches the power transmission line 300, and the rolling part 1211 contacts the power transmission line 300 through the arc-shaped groove 1212.

[0055] In this way, the inner wall of the arc groove 1212 can form a surface contact with the outer surface of the power transmission line 300, increasing the friction and preventing slippage; at the same time, the curvature of the arc groove 1212 matches the outer peripheral surface of the power transmission line 300, which can avoid damage to the power transmission line 300.

[0056] In use, the rolling part 1211 and the drive wheel 211 of the inspection device 200 are located on opposite sides of the power transmission line 300, and the clamping action between them effectively constrains the power transmission line 300. The drive wheel 211 can be equipped with a power unit to drive the inspection device 200 to move along the power transmission line 300, and the rolling part 1211 is used to roll on the surface of the power transmission line 300 under the drive of the drive wheel 211 to achieve low friction and smooth movement.

[0057] The connector 122 includes at least one elastic reset part, which can be an elastic structure such as a spring or elastic rubber, allowing the clamping member 121 to generate elastic displacement in the radial direction. Thus, during the rolling process of the rolling part 1211, a preload can be continuously applied through the elastic structure, ensuring that the rolling part 1211 always adheres to the surface of the power transmission line 300. When the wire diameter of the power transmission line 300 changes, for example, transitioning from a large diameter section to a small diameter section, the elastic deformation of the connector 122 can adjust the distance between the clamping member 121 and the power transmission line 300, ensuring uninterrupted clamping force and preventing clamping failure due to gaps. This improves the adaptability of the clamping structure 100 to different wire diameters, enhances its anti-interference stability under complex working conditions, and reduces slippage, deflection, or wire detachment phenomena in the inspection equipment 200 during operation.

[0058] It should be noted that when the support member 110 in this application embodiment is connected to the main frame of the inspection equipment 200, the two can be fixedly connected, or the support member 110 can be connected to the main frame through a lifting mechanism. This application embodiment does not limit this.

[0059] For example, when the support 110 is connected to the main frame via the lifting mechanism, and the inspection equipment 200 moves from a large wire diameter to a small wire diameter, the elastic deformation of the elastic reset part can adjust the distance between the clamping part 121 and the transmission line 300 to ensure that the clamping force is not interrupted. At the same time, the lifting mechanism can also drive the clamping structure 100 to rise, so that the rolling part 1211 can provide stable and consistent pressure to the transmission line 300 in both the large and small wire diameter sections. This avoids the phenomenon that the clamping force of the drive wheel 211 and the clamping structure 100 on the transmission line 300 is too large or too small due to the change in the wire diameter of the transmission line 300, which helps to ensure the consistency of the clamping force.

[0060] See Figure 2 and Figure 4 In a specific example, the elastic reset part is a torsion spring 1222.

[0061] The torsion spring 1222 is used to achieve elastic contact between the clamping member 121 and the power transmission line 300.

[0062] In practice, the torsion spring 1222 can be made of spring steel, which has good fatigue strength and resilience, and is not prone to failure after long-term use.

[0063] See Figure 2In some embodiments, the clamping member 121 includes a support portion 1213, a rolling portion 1211 is rotatably disposed on the support portion 1213, and the connecting member 122 further includes a first connecting portion 1221 connected to the support member 110, the support portion 1213 is rotatably sleeved on the first connecting portion 1221; a torsion spring 1222 is sleeved on the first connecting portion 1221, one end of the torsion spring 1222 is connected to the support portion 1213, and the other end is connected to the support member 110.

[0064] The support part 1213 serves as the main structure of the clamping member 121, and is used to support the rolling part 1211 and achieve the connection with the support member 110.

[0065] For example, the support portion 1213 may have a shaft or bearing structure that matches the rolling portion 1211 so that the rolling portion 1211 is rotatably mounted on the support portion 1213 and the rolling portion 1211 can rotate freely about its own axis during contact with the power transmission line 300.

[0066] It is understood that the torsion spring 1222 includes a helical elastic body and two working ends. During assembly, the elastic body can be sleeved on the first connecting part 1221. One of the working ends forms a hook-like structure and hooks with the support part 1213, while the other working end extends to directly abut against the support member 110, forming a stable force transmission fulcrum.

[0067] In a specific implementation, the support part 1213 is configured to drive the rolling part 1211 to rotate between the first limit position and the second limit position under the drive of the torsion spring 1222, so as to adapt to the transmission lines 300 of different diameters and maintain elastic contact.

[0068] Here, the first connecting part 1221 is fixedly connected to the support member 110, serving as the connection base between the clamping assembly 120 and the support member 110. Stable installation can be achieved through threaded fastening, welding, or interference fit. A portion of the support part 1213 is rotatably sleeved on the outer periphery of the first connecting part 1221, forming a hinged structure that can rotate relative to it. When subjected to external force, the support part 1213 swings relative to the support member 110, thereby causing the rolling part 1211 on it to displace.

[0069] For example, during the operation of the inspection equipment 200, when the rolling part 1211 contacts the power transmission line 300, the power transmission line 300 applies a reaction force to the rolling part 1211. This force is transmitted through the support part 1213 to the portion of the support part 1213 that is fitted onto the first connecting part 1221, causing the support part 1213 to rotate around the first connecting part 1221. The torsion spring 1222 applies a continuous restoring force to the support part 1213, causing it to rotate relative to the first connecting part 1221, i.e., to oscillate relative to the support member 110. This ensures that the rolling part 1211 always has a tendency to rotate towards the power transmission line 300, thereby achieving elastic contact.

[0070] Furthermore, during the movement of the inspection equipment 200, the rolling part 1211 can rotate between a first limit position and a second limit position due to changes in wire diameter. It can be understood that one of the first and second limit positions corresponds to the extreme position where the rolling part 1211 retracts due to a decrease in wire diameter or external disturbance, while the other corresponds to the state where the rolling part 1211 is in close contact with the transmission line 300. In the following description of the embodiments of this application, the first limit position corresponds to the extreme position where the rolling part 1211 retracts due to a decrease in wire diameter or external disturbance, and the second limit position corresponds to the state where the rolling part 1211 is in close contact with the transmission line 300, as an example.

[0071] See Figure 2 In a specific example, the support portion 1213 includes a second support segment 1215 and two first support segments 1214, both of which are rotatably sleeved on the first connecting portion 1221; the second support segment 1215 is connected between the ends of the two first support segments 1214 that are away from the first connecting portion 1221, and the rolling portion 1211 is rotatably sleeved on the second support segment 1215.

[0072] The support portion 1213 can be formed into a "door frame"-like integral structure to improve load-bearing rigidity and motion stability. Specifically, the first connecting portion 1221 can be a first connecting shaft, and the two first support segments 1214 are located on both sides of the support member 110, and are rotatably sleeved on the first connecting portion 1221, so that the support portion 1213 can swing relative to the support member 110 around the axis of the first connecting portion 1221; the second support segment 1215 is connected between the ends of the two first support segments 1214 away from the first connecting portion 1221, that is, located at the outer end of the first support segment 1214, and the extension direction of the second support segment 1215 is parallel to the axial direction of the first connecting portion 1221, and is used to support the rolling portion 1211.

[0073] For example, the outer peripheral surface of the rolling part 1211 protrudes from the support part 1213 for contacting the outer surface of the power transmission line 300 and rolling along its extension direction to achieve low-friction movement. The axis of the rolling part 1211 is aligned with the extension direction of the second support section 1215, ensuring that the rolling direction of the rolling part 1211 is parallel to the travel direction of the inspection device 200.

[0074] Furthermore, the first support section 1214 includes a first sub-segment 1216 and a second sub-segment 1217 arranged sequentially. The first sub-segment 1216 is rotatably sleeved on the first connecting part 1221, and the end of the second sub-segment 1217 facing away from the first connecting part 1221 is connected to the second support section 1215.

[0075] In this way, the first support section 1214 forms a bent structure with spatial transition function, which can meet the needs of assembly layout.

[0076] For example, a bearing or bushing structure may be provided between the first segment 1216 and the first connecting portion 1221 to reduce the frictional resistance when the first segment 1216 rotates relative to the first connecting portion 1221 and improve the response sensitivity. The second segment 1217 extends from the end of the first segment 1216, and the extension direction of the second segment 1217 forms an angle with the first segment 1216. This angle can be obtuse to facilitate the connection between the second segment 1217 and the second support segment 1215. The second segment 1217 and the second support segment 1215 can be connected by welding, insertion, threaded fastening, etc. The first segment 1216 and the second segment 1217 can be integrally formed; this embodiment does not limit this.

[0077] In other examples, the first support segment 1214 is L-shaped.

[0078] Thus, the first support segment 1214 of the L-shape can be formed by bending metal material or integrally processed by mold, which has good manufacturing feasibility and assembly convenience. Among them, the included angle between the first sub-segment 1216 and the second sub-segment 1217 is a right angle, which is conducive to optimizing the spatial layout and improving the structural compactness.

[0079] See Figure 1 , Figure 2 and Figure 5 In some embodiments, a torsion spring 1222 is sleeved on the first sub-segment 1216, with one end of the torsion spring 1222 hooked to the second sub-segment 1217 and the other end abutting against the support member 110.

[0080] Thus, by fitting the torsion spring 1222 onto the first sub-segment 1216 of the first support segment 1214, with the axis of the torsion spring 1222 aligned with the extension direction of the first sub-segment 1216, the installation is compact and space occupancy is reduced.

[0081] For example, when the rolling part 1211 contacts the power transmission line 300 during the movement of the inspection equipment 200, if the diameter of the power transmission line 300 increases or is subjected to an upward external force, the rolling part 1211 drives the second support section 1215 and the second sub-section 1217 to move upward, causing the first sub-section 1216 to rotate around the first connecting part 1221. At this time, the torsion spring 1222 is subjected to torque and generates a first elastic deformation, storing elastic potential energy, and allowing the rolling part 1211 to rotate from the first limit position to the second limit position, avoiding excessive clamping force that could cause structural damage or slippage. When the external force decreases or the diameter of the power transmission line 300 decreases, the torsion spring 1222 releases its potential energy under the action of elastic restoring force, driving the first sub-section 1216 to rotate in the opposite direction, thereby driving the second sub-section 1217 and the rolling part 1211 to reset from the second limit position to the first limit position, thus continuously applying preload to ensure that the rolling part 1211 is always in contact with the surface of the power transmission line 300.

[0082] See Figure 2 , Figure 4 and Figure 6 In some examples, the connector 122 further includes a second connecting portion 1223 connected to the support 110, the second connecting portion 1223 being located above the first connecting portion 1221; the torsion spring 1222 is configured to drive the second sub-segment 1217 to abut against the second connecting portion 1223 so that the rolling portion 1211 is in a first limiting position.

[0083] Thus, by limiting the second segment 1217 through the second connecting part 1223, the excessive swaying of the rolling part 1211 due to inertia and other factors can be reduced, so that the clamping member 121 can maintain a stable posture when the external force is eliminated and the rolling part 1211 is out of contact with the power transmission line 300, which is beneficial to improving the overall structural stability of the clamping structure 100.

[0084] The second connecting part 1223 can be a second connecting shaft, or the second connecting part 1223 can also be a block or other structure, and the embodiments of this application do not limit this.

[0085] See Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 In some embodiments, the support member 110 has a second limiting portion 111 located below the first connecting portion 1221; the torsion spring 1222 is configured to allow the second segment 1217 to rotate to abut against the second limiting portion 111 when the external force reaches a preset value, so that the rolling portion 1211 is in the second limiting position.

[0086] This avoids damage to the rolling part 1211 or the power transmission line 300 due to excessive clamping force, and also prevents deformation or damage to the connector 122 or the support part 1213 due to overload, which helps to improve the service life of the clamping structure 100.

[0087] The preset values ​​can be set according to actual conditions, and this application embodiment does not limit this. The support member 110 can be set as a plate structure to facilitate processing and manufacturing. The support member 110 has plate-shaped fixing parts 112 on opposite sides. The two fixing parts 112 are used to connect with the first connecting part 1221 and the second connecting part 1223. The second limiting part 111 and the fixing part 112 are both located on the same side of the support member 110. The second limiting part 111 can be a boss, a stop, or a step structure.

[0088] See Figure 2 In a specific example, there are two torsion springs 1222, which are sequentially sleeved on the first connecting part 1221 along the axial direction of the first connecting part 1221.

[0089] Thus, by arranging the two torsion springs 1222 sequentially on the first connecting part 1221, the clamping part 121 can be subjected to consistent force during movement, avoiding tilting of the rolling part 1211 or uneven wear with the transmission line 300 due to differences in elastic deformation on one side.

[0090] For example, when the rolling part 1211 contacts the power transmission line 300, the two torsion springs 1222 undergo synchronous elastic deformation to drive the first support sections 1214 on both sides to swing in a coordinated manner, ensuring that the clamping force is evenly distributed; during the reset process, the two release elastic potential energy synchronously, so that the rolling part 1211 returns to the first limit position smoothly.

[0091] Understandably, during assembly, torsion springs 1222 can be fitted one-to-one onto the first segment 1216, with one end of the torsion spring 1222 hooked to the corresponding second segment 1217 and the other end abutting against the support member 110.

[0092] In some examples, the second segments 1217 corresponding to the two clamping members 121 extend at an angle to each other, and the second segments 1217 have an angle with the horizontal plane.

[0093] In this way, the two clamping components 120 can be arranged more reasonably on the support 110, avoiding force interference between the two and facilitating independent operation. At the same time, the overall structure of the clamping structure 100 can be made more compact.

[0094] For example, when the rolling part 1211 is in the first limiting position, the angle between the second segment 1217 and the horizontal plane can be 45°. As the rolling part 1211 switches from the first limiting position to the second limiting position, the angle gradually decreases. The vertical distance between the rolling part 1211 in the first and second limiting positions can be set to 9 mm - 11 mm, for example, 9 mm, 10 mm, 10.5 mm, or 1 mm. This helps to optimize the lever arm of the torsion spring 1222, allowing the elastic force to be transmitted to the rolling part 1211 more effectively, reducing jamming, and improving the smoothness of the movement of the second segment 1217 and the rolling part 1211.

[0095] Specifically, when assembling the clamping structure 100, the torsion spring 1222 and the clamping member 121 need to be installed in the limiting space of the second connecting part 1223 and the second limiting part 111. Since the torsion spring 1222 has a large rebound force, the production operation is quite difficult. It is possible to first assemble the support member 110 and the first connecting part 1221, then install the clamping member 121 on the first connecting part 1221, and then install the torsion spring 1222 to release its elastic force. Finally, by pressing down the rolling part 1211, the second connecting part 1223 is installed on the support member 110, causing the torsion spring 1222 to undergo a second elastic deformation, thus limiting the rolling part 1211 at the first limiting position and reducing the difficulty of the assembly operation.

[0096] See Figure 8 This application also provides an inspection device 200, including a device body 210 and a clamping structure 100 as described in any of the above embodiments disposed on the device body 210.

[0097] The overall structure and working principle of the clamping structure 100 are the same as those in the previous embodiments, and will not be described again in this embodiment.

[0098] For example, the device body 210 can integrate components such as a drive wheel 211, a control system, a detection module, and a power module. The drive wheel 211 and the rolling part 1211 of the clamping structure 100 respectively contact the two sides of the power transmission line 300. The drive wheel 211 drives the inspection device 200 to move on the power transmission line 300. The control system is based on a main control circuit board and integrates a sensor signal processing unit and a communication module to monitor the attitude and operating status of the inspection device 200 in real time and execute remote commands. The detection module may include a camera, an infrared thermal imager, or a lidar, etc., to collect data such as the appearance and temperature of the power transmission line 300 and connect to the control system through a line. The power module, such as a lithium battery pack, is used to provide stable power for the operation of the inspection device 200.

[0099] In summary, the inspection device 200 provided in this application embodiment, by setting a clamping structure 100, with two clamping components 120 in the clamping structure 100 mounted on a support member 110, makes the clamping structure 100 more compact overall. Furthermore, the two rolling parts 1211 form a larger contact area with the transmission line 300, making it less likely for the transmission line 300 to detach from the rolling parts 1211 under external force. This improves the stability of the clamping structure 100 when it grips the transmission line 300 in conjunction with the drive wheel 211. The rolling parts 1211 are used to roll along the extension direction of the transmission line 300 under the drive of the drive wheel 211. During the rolling process, the elastic reset part undergoes elastic deformation under external force, allowing the clamping component 121 to rotate relative to the support member 110. When the external force is removed, the driving clamping component 121 resets, maintaining elastic contact between the rolling part 1211 and the transmission line 300.

[0100] Thus, when the wire diameter of the transmission line 300 changes, the position of the rolling part 1211 can be adjusted by the connector 122 to ensure that the rolling part 1211 is always in contact with the transmission line 300, so as to cooperate with the drive wheel 211 to achieve a better clamping effect on the transmission line 300, thereby improving the stability of the inspection equipment moving on the transmission line.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A clamping structure, characterized in that, include: Support member (110) is used to install on the inspection equipment; Two clamping assemblies (120) are symmetrically arranged along the axis of the support member (110). Each clamping assembly (120) includes a clamping member (121) and a connecting member (122). The clamping member (121) is rotatably connected to the support member (110) through the corresponding connecting member (122). The clamping member (121) has a rolling part (1211). The rolling part (1211) and the drive wheel (211) of the inspection equipment respectively contact the two sides of the power transmission line (300). The part (1211) is used to roll along the extension direction of the power transmission line (300) under the drive of the drive wheel (211); the connector (122) includes at least one elastic reset part, which is configured to elastically deform under the action of an external force during the rolling of the rolling part (1211) to allow the clamping member (121) to rotate relative to the support member (110); and drive the clamping member (121) to reset when the external force is removed, so that the rolling part (1211) and the power transmission line (300) remain in elastic contact.

2. The clamping structure according to claim 1, characterized in that, The elastic reset part is a torsion spring (1222).

3. The clamping structure according to claim 2, characterized in that, The clamping member (121) includes a support portion (1213), and the rolling portion (1211) is rotatably disposed on the support portion (1213); The connector (122) further includes a first connecting part (1221) connected to the support (110), and the support (1213) is rotatably sleeved on the first connecting part (1221); the torsion spring (1222) is sleeved on the first connecting part (1221), one end of the torsion spring (1222) is connected to the support (1213), and the other end is connected to the support (110).

4. The clamping structure according to claim 3, characterized in that, The support (1213) is configured to drive the rolling part (1211) to rotate between a first limit position and a second limit position under the drive of the torsion spring (1222) to adapt to the power transmission line (300) of different diameters and maintain the elastic contact.

5. The clamping structure according to claim 4, characterized in that, The support portion (1213) includes: Two first support sections (1214) are rotatably sleeved on the first connecting part (1221); The second support segment (1215) is connected between the two ends of the first support segments (1214) that are away from the first connecting part (1221), and the rolling part (1211) is rotatably sleeved on the second support segment (1215).

6. The clamping structure according to claim 5, characterized in that, The first support segment (1214) includes a first sub-segment (1216) and a second sub-segment (1217) arranged sequentially. The first sub-segment (1216) is rotatably sleeved on the first connecting part (1221), and the end of the second sub-segment (1217) facing away from the first connecting part (1221) is connected to the second support segment (1215). The torsion spring (1222) is sleeved on the first sub-segment (1216), one end of the torsion spring (1222) is hooked to the second sub-segment (1217), and the other end abuts against the support member (110).

7. The clamping structure according to claim 6, characterized in that, The connector (122) further includes a second connecting portion (1223) connected to the support member (110), the second connecting portion (1223) being located above the first connecting portion (1221); The torsion spring (1222) is configured to drive the second segment (1217) to abut against the second connecting portion (1223) when the external force is removed and the rolling portion (1211) disengages from the power transmission line (300), so that the rolling portion (1211) is in the first limiting position.

8. The clamping structure according to claim 6, characterized in that, The support member (110) has a second limiting part (111), which is located below the first connecting part (1221); The torsion spring (1222) is configured to allow the second segment (1217) to rotate to abut against the second limiting part (111) when the external force reaches a preset value, so that the rolling part (1211) is in the second limiting position.

9. The clamping structure according to any one of claims 3 to 8, characterized in that, There are two torsion springs (1222), and the two torsion springs (1222) are sequentially sleeved on the first connecting part (1221) along the axial direction of the first connecting part (1221).

10. The clamping structure according to any one of claims 6 to 8, characterized in that, The second sub-segment (1217) corresponding to the two clamping members (121) extends obliquely in opposite directions, and the second sub-segment (1217) has an angle with the horizontal plane.

11. The clamping structure according to any one of claims 5 to 8, characterized in that, The first support segment (1214) is L-shaped.

12. The clamping structure according to any one of claims 1 to 8, characterized in that, The rolling part (1211) has an arc-shaped groove (1212) on its periphery that matches the power transmission line (300), and the rolling part (1211) contacts the power transmission line (300) through the arc-shaped groove (1212).

13. An inspection device, characterized in that, It includes a device body (210) and a clamping structure as described in any one of claims 1 to 12 disposed on the device body (210).

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