Electric power equipment overheating early warning device

Abstract

The utility model discloses an electric power equipment overheating early warning device, which belongs to the technical field of electric power monitoring, and comprises a plurality of groups of U-shaped frames, the first end of each group of U-shaped frame is fixedly provided with a rotating rod, and the second end of each group of U-shaped frame is provided with an expansion port and a rotating port, so that the adjacent U-shaped frames are matched with the rotating port of the other U-shaped frame through the extrusion of the rotating rod through the expansion port; a rotary connection structure is formed; the head ends and the tail ends of the multiple sets of rotationally-connected U-shaped frames are rotationally connected with the L-shaped frames correspondingly, and suction fixing mechanisms are fixedly arranged at the free ends of the L-shaped frames. By increasing or decreasing the number of the U-shaped frames, the device can quickly adapt to electrical equipment of different sizes, special models do not need to be customized for each type of equipment, the purchase and inventory cost is greatly reduced, adsorption and release are achieved only through a pure mechanical structure during enclosure installation, extra energy is not needed, operation is easy and convenient, and reliability is high; the device is especially suitable for power equipment and other scenes where the monitoring device needs to be frequently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of power monitoring, in particular to an overheating early warning device for power equipment. Background Art

[0002] Power equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power station boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc., while power supply equipment mainly includes transmission lines of various voltage levels, mutual inductors, contactors, etc.

[0003] For example, the patent with the national authorized patent announcement number CN213211261U discloses a high-temperature early warning device for electric power equipment, which relates to the technical field of high-temperature alarm devices. A high-temperature early warning device for electric power equipment includes a fuselage, a temperature gauge and a control panel. The temperature gauge is fixedly installed with bolts on the front of the fuselage, and a base is welded to the bottom of the fuselage. A control panel is grooved on the front of the fuselage, a display screen is bonded to the control panel, a receiver is fixedly installed on the control panel, a speaker is fixedly installed on the control panel, and a warning light is fixedly installed on the left side of the fuselage. A drive motor is fixed on the left side of the fuselage, a filter is detachably installed on the left side of the fuselage, a cooling fan is arranged inside the fuselage, and a smoke sensor is arranged at the center of the cooling fan. The utility model uses a refrigeration system and a cooling fan to better cool the equipment when a failure occurs and high temperature is generated, so that the equipment can work normally.

[0004] However, the high temperature warning device of the above-mentioned electrical equipment cannot be extended or contracted according to the size of the electrical equipment during installation, and thus cannot match the internal space of electrical equipment of different specifications. The device cannot be installed in small equipment due to its large size, or the detection range in large equipment is limited due to its small size, and key temperature measurement points cannot be covered. Utility Model Content

[0005] The purpose of the present utility model is to provide an overheating warning device for electric power equipment to solve the problem that the device proposed in the above-mentioned background technology cannot adaptively extend or shrink according to the size of the electric power equipment during installation, resulting in poor adaptability, limited detection range and insufficient coverage of key temperature measurement points.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An electric power equipment overheating warning device comprises: a plurality of groups of C-shaped frames, each group of C-shaped frames having a rotating rod fixedly provided at the first end thereof and an expansion opening and a rotation opening respectively provided at the second end thereof, so that adjacent C-shaped frames are connected by the rotating rods through the expansion openings to squeeze and fit into the rotation opening of another C-shaped frame, thereby forming a rotational connection structure; the head and tail ends of the plurality of rotationally connected C-shaped frames are respectively rotationally connected to L-shaped frames, and the free ends of the L-shaped frames are fixedly provided with suction mechanisms;

[0008] A cone is fixedly provided on the inner wall of each group of the L-shaped frames, and an infrared sensor is fixedly provided inside the cone. The signal output end of the infrared sensor is electrically connected to the signal input end of the controller, and the control output end of the controller is electrically connected to the electrical control end of the alarm. The controller and the alarm are both installed in the idle area of ​​the L-shaped frame.

[0009] Preferably, each set of the C-shaped frames is integrally formed of plastic material, and when the rotating rod is extruded and adapted to the rotating opening, the C-shaped frames realize detachable rotation connection of the rotating rod through elastic deformation.

[0010] Preferably, multiple groups of infrared sensors form a circumferential temperature measuring component through the rotating connection structure of the U-shaped frame. The temperature measuring component is fixed to the outer surface of the power equipment through an absorption mechanism to form a non-contact temperature monitoring belt, thereby realizing a ring array-type real-time scanning of the surface temperature of the power equipment.

[0011] Preferably, the infrared sensor adopts an infrared temperature sensor of model XL16IT, and the controller adopts a microcontroller of model STM32.

[0012] Preferably, the suction mechanism includes a conical disk, the first end of which is integrally formed with and connected to a connecting ring, and the connecting ring is fixedly connected to the free end of the L-shaped frame by an interference fit; a suction cup is provided inside the conical disk, the sealing lip of the suction cup is sealed with the first end of the ring disk, and the second end of the ring disk is integrally formed with the outer surface of the conical disk.

[0013] Preferably, the first end of the suction cup is fixedly connected to the first end of the threaded rod, the second end of the threaded rod passes through the cone disk and the connecting ring in sequence and extends to the outside of the free end of the L-shaped frame, and the extended end of the threaded rod is threadedly connected to the butterfly head.

[0014] Preferably, the outer surface of the threaded rod is provided with two sets of symmetrical guide rail grooves along the axial direction, the guide rail grooves are slidably matched with the guide rail blocks, and the guide rail blocks are integrally formed with the inner ring wall of the connecting ring.

[0015] Preferably, the threaded rod forms an axial limiting structure through the sliding cooperation between the guide rail groove and the guide rail block, and the threaded rod is driven to move axially by rotating the butterfly head. The axial movement of the threaded rod drives the suction cup to deform, thereby increasing the internal space volume of the suction cup and forming a negative pressure adsorption structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The power equipment overheating warning device utilizes C-shaped and L-shaped structures. The C-shaped frames can be disassembled and assembled to adjust their length as needed to accommodate equipment of varying sizes, reducing costs. Multiple sets of C-shaped frames drive infrared sensors to measure temperature in a circular pattern. This layout effectively covers most key temperature measurement points on power equipment, enabling non-contact detection of surface temperatures. Processed data is wirelessly transmitted to a monitoring platform for visual display. Automatic warnings are issued if thresholds are exceeded, and the "temperature monitoring belt" can bend adaptively to ensure accurate temperature measurement.

[0018] 2. The device's suction mechanism utilizes purely mechanical structures such as a conical disc and a threaded rod. By twisting the butterfly head to drive the threaded rod to move linearly, the volume of the internal space of the suction cup is changed, forming a pressure difference to achieve adsorption and fixation. The reverse operation releases the adsorption. It is easy to operate and does not require energy. The ring disc protects the suction cup to improve adsorption stability and life, making it suitable for scenarios where power equipment is frequently installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the power equipment overheating early warning device of the present utility model;

[0020] Figure 2 It is a schematic diagram of the overall front view of the structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall expanded structure of the utility model;

[0022] Figure 4 This is a structural diagram of the cone disc and the connecting ring of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the solid suction mechanism of the present utility model.

[0024] In the figure: 1. U-shaped frame; 101. L-shaped frame; 102. Cone; 103. Infrared sensor; 104. Rotating rod; 105. Rotating opening; 106. Expansion opening; 2. Suction mechanism; 201. Cone disk; 202. Connecting ring; 203. Butterfly head; 204. Threaded rod; 205. Guide rail groove; 206. Suction cup; 207. Guide rail block; 208. Ring disk. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 , this embodiment provides the following technical solutions:

[0027] like Figure 1-Figure 3 As shown, an electric power equipment overheating warning device comprises: multiple groups of C-shaped frames 1, each group of C-shaped frames 1 having a rotating rod 104 fixed to the first end, and an expansion opening 106 and a rotation opening 105 respectively provided at the second end, so that adjacent C-shaped frames 1 are connected by the rotating rod 104 through the expansion opening 106 to squeeze and fit into the rotation opening 105 of another C-shaped frame 1, forming a rotational connection structure; the head and tail ends of the multiple groups of rotatably connected C-shaped frames 1 are respectively rotatably connected to L-shaped frames 101, and the free ends of the L-shaped frames 101 are fixed with a suction mechanism 2;

[0028] A cone 102 is fixedly provided on the inner wall of each set of L-shaped frames 1, and an infrared sensor 103 is fixedly provided inside the cone 102. The signal output end of the infrared sensor 103 is electrically connected to the signal input end of the controller, and the control output end of the controller is electrically connected to the electrical control end of the alarm. The controller and the alarm are both installed in the idle area of ​​the L-shaped frame.

[0029] Among them, each set of C-shaped frames 1 is made of plastic material and is integrally formed. When the rotating rod 104 is squeezed and adapted to the rotating port 105, the C-shaped frame 1 realizes the detachable rotating connection of the rotating rod 104 through elastic deformation. The multiple sets of infrared sensors 103 form a surroundable temperature measuring component through the rotating connection structure of the C-shaped frame 1. The temperature measuring component is fixed to the outer surface of the power equipment through the suction mechanism 2 to form a non-contact temperature monitoring belt, realizing the ring array real-time scanning of the surface temperature of the power equipment. The signal output end of the infrared sensor 103 is electrically connected to the signal input end of the controller, and the control output end of the controller is connected to the alarm The electronic control end of the device is electrically connected, the signal output end of the controller is communicatively connected to the signal receiving end of the monitoring platform, the monitoring platform is configured with a temperature data display module and an equipment status curve generation module, the infrared sensor 103 adopts an infrared temperature sensor of model XL16IT, the controller adopts a microcontroller of model STM32, and the monitoring platform adopts the Xinli digital software system. When the infrared sensor 103 detects that the power equipment meter is overheated, the controller controls the alarm to sound an alarm for early warning, and at the same time, the controller uploads the alarm situation to the monitoring platform to inform the management personnel to take corresponding measures in time.

[0030] Through the design of the U-shaped frame 1, L-shaped frame 101, infrared sensor 103, rotating port 105, expansion port 106 and suction mechanism 2, when in use, the staff can remove or add multiple sets of U-shaped frames 1 according to the size of the power equipment, so as to extend or reduce the length of the multiple sets of U-shaped frames 1, and in the process of adding U-shaped frames 1, the U-shaped frame 1 to be added can be filled into the outer surface of the rotating rod 104 in another set of U-shaped frames 1 through the rotating rod 104, and with the continuous top insertion, it will be pushed open for rotation. The rod 104 is inserted and rotated in the rotating opening 105 to realize the installation of the U-shaped frame 1. When removing, it only needs to pull it out with external force. After the length of multiple sets of U-shaped frames 1 is adjusted, they can be put on the outer surface of the power equipment and fixed to the two sides of the power equipment, such as one end of the distribution box, using the suction mechanism 2 fixedly installed in the head and tail L-shaped frames 101. By increasing or decreasing the number of U-shaped frames 1, the device can be quickly adapted to power equipment of different sizes, without the need to customize a special model for each equipment, which greatly reduces procurement and inventory costs.

[0031] The mutually rotating sleeves of multiple sets of U-shaped frames 1 can drive the infrared sensors 103 installed inside to be arranged in a ring shape to form a "temperature monitoring belt", which scans the surface temperature of the power equipment inside in real time to form a non-contact temperature measurement. The infrared sensor 103 will convert the scanned infrared radiation signal into an electrical signal through the built-in detector. After pre-processing, the controller completes the analog-to-digital conversion and temperature value calculation of the electrical signal to generate the equipment surface temperature data in real time. The controller transmits the temperature data to the Xinli digital software system monitoring platform through the wireless communication module, so that the monitoring platform can display the detection data of multiple sets of infrared sensors 103 in real time and display the temperature value in the form of temperature. The surface temperature distribution of the equipment is visualized in the form of temperature cloud graphs, trend curves, etc., and abnormal temperature rise areas are automatically marked, such as hot spots exceeding the preset threshold. When a certain infrared sensor 103 detects that the temperature exceeds the threshold, the controller will send an early warning instruction to the monitoring platform, which can automatically push notifications to the mobile terminal of the operation and maintenance personnel according to the early warning level, and attach real-time temperature data and hot spot location information to prompt remote verification or on-site maintenance. In addition, due to the rotatable connection between the U-shaped frames 1, the "temperature monitoring belt" can bend adaptively with the contour of the equipment to ensure that the infrared sensor 103 is always vertically aligned with the equipment surface, avoiding temperature measurement errors caused by angle deviation.

[0032] The monitoring platform is equipped with a threshold comparison module, a trend analysis module, and a multi-level warning module. The threshold comparison module compares real-time temperature data with preset safety thresholds, triggering warning signals when the threshold is exceeded. The trend analysis module generates temperature change rate curves based on historical temperature data to predict potential equipment risks. The multi-level warning module provides three levels of warnings based on the degree of temperature anomaly: Level 1 warning is when the temperature exceeds the normal range but is below the danger threshold; Level 2 warning is when the temperature exceeds the danger threshold but does not reach the emergency threshold; Level 3 warning is when the temperature reaches the emergency threshold and triggers an automatic alarm and power-off protection command. The threshold comparison module provides basic temperature over-limit warning; the trend analysis module predicts potential faults using machine learning algorithms; and the multi-level warning module establishes a differentiated response mechanism that complies with power equipment safety management regulations.

[0033] like Figure 4-Figure 5 As shown, the suction mechanism 2 includes a cone disk 201, the first end of the cone disk 201 is integrally formed with and communicated with the connecting ring 202, and the connecting ring 202 is fixedly connected to the free end of the L-shaped frame 101 by an interference fit; a suction cup 206 is provided inside the cone disk 201, the sealing lip of the suction cup 206 is sealedly connected to the first end of the ring disk 208, the second end of the ring disk 208 is integrally formed with the outer surface of the cone disk 201, the first end of the suction cup 206 is fixedly connected to the first end of the threaded rod 204, and the second end of the threaded rod 204 passes through the cone disk 201 and the connecting ring 202 in sequence and extends to the free end of the L-shaped frame 101 On the outer side of the end, the extended end of the threaded rod 204 is threadedly connected to the butterfly head 203. The outer surface of the threaded rod 204 is axially provided with two groups of symmetrical guide grooves 205. The guide grooves 205 slide with the guide blocks 207. The guide blocks 207 are integrally formed with the inner ring wall of the connecting ring 202. The threaded rod 204 forms an axial limiting structure through the sliding cooperation between the guide grooves 205 and the guide blocks 207. The threaded rod 204 is driven to move axially by rotating the butterfly head 203. The axial movement of the threaded rod 204 drives the suction cup 206 to deform, so that the internal space volume of the suction cup 206 increases, forming a negative pressure adsorption structure.

[0034] Through the design of the cone disk 201, the connecting ring 202, the butterfly head 203, the threaded rod 204 and the suction cup 206, after multiple sets of L-shaped frames 1 are wrapped around the outer surface of the power equipment, the two sets of L-shaped frames 101 at the head and tail can drive the suction cup 206 in the cone disk 201 to touch one end inside the distribution box. Then, the staff can twist the butterfly head 203 to drive the threaded rod 204. In this process, because the threaded rod 204 is limited by the guide groove 205 and the guide block 207, only axial movement is allowed. The rotational movement of the butterfly head 203 can be converted into a linear pulling action of the threaded rod 204, which can allow the threaded rod 204 to move outward from the cone disk 201 and the connecting ring 202. The suction cup 206 fixed at the bottom is also pulled synchronously, so that a relatively closed space is formed inside the suction cup 206. As the threaded rod 204 continues to pull, the volume of the internal space of the suction cup 206 gradually increases, and the increase in volume causes the internal air pressure to increase. The suction cup 206 is pressed tightly against the surface of the device by the external atmospheric pressure, generating an adsorption force to fix the entire device. At this time, the threaded combination of the butterfly head 203 and the threaded rod 204 forms a self-locking function, maintaining the pulling state and vacuum degree, ensuring the stability of the adsorption force. When the device needs to be disassembled, the butterfly head 203 is twisted in the opposite direction to move the threaded rod 204 inward, the volume of the internal space of the suction cup 206 is reduced, and the air pressure rises back to balance with the outside, the pressure difference disappears, the adsorption force is released, and the device can be easily removed. This design realizes adsorption and release through a purely mechanical structure, does not require additional energy, is easy to operate and has high reliability, and is particularly suitable for scenarios such as power equipment that require frequent installation and disassembly of monitoring devices. At the same time, the ring disk 208 supports and protects the sealing lip of the suction cup 206 to prevent edge deformation or damage, further improving the adsorption stability and service life.

[0035] According to the above technical solution, the working steps of this solution are summarized and sorted out: when in use, the staff can remove or add multiple groups of C-shaped frames 1 according to the size of the power equipment, so as to shorten or extend the length of the multiple groups of C-shaped frames 1. In the process of adding C-shaped frames 1, the C-shaped frames 1 to be added can be filled into the outer surface of the rotating rod 104 in another group of C-shaped frames 1 through the rotating rod 104, and with continuous pushing, it will be pushed open for the rotating rod 104 to be inserted and rotated in the rotating mouth 105, so as to achieve the installation of the C-shaped frames 1, and removal can be achieved by pulling with external force. After the lengths of the multiple sets of L-shaped frames 1 are adjusted, they can be placed on the outer surface of the power equipment and the two sets of L-shaped frames 101 at the head and tail can be used to drive the suction cup 206 in the cone 201 to touch one end of the distribution box. Then, the staff can twist the butterfly head 203 to drive the threaded rod 204. In this process, because the threaded rod 204 is limited by the guide groove 205 and the guide block 207, it is only allowed to move axially. The rotational movement of the butterfly head 203 can be converted into a linear pulling action of the threaded rod 204, which can allow the threaded rod 204 to move from the cone 201 and the connecting ring 2 02 moves outward, and the suction cup 206 fixedly connected to the bottom is pulled synchronously, so that a relatively closed space is formed inside the suction cup 206, and as the threaded rod 204 continues to pull, the volume of the internal space of the suction cup 206 can be gradually increased, and the increase in volume causes the internal air pressure to decrease. When the internal pressure is lower than the external atmospheric pressure, a pressure difference is formed inside and outside the suction cup 206, and the external atmospheric pressure can be used to press the suction cup 206 tightly against the surface of the device, generating an adsorption force to fix the entire device. At this time, the threaded cooperation between the butterfly head 203 and the threaded rod 204 forms a self-locking, Maintaining the pulling state and vacuum degree ensures stable adsorption force. The mutually rotating enclosure of multiple sets of U-shaped frames 1 can drive the infrared sensors 103 installed inside to be arranged in a ring to form a "temperature monitoring belt", scanning the surface temperature of the power equipment inside in real time, forming a non-contact temperature measurement. The infrared sensor 103 will convert the scanned infrared radiation signal into an electrical signal through the built-in detector. After pre-processing, the controller completes the analog-to-digital conversion and temperature value calculation of the electrical signal to generate real-time equipment surface temperature data. The controller transmits the temperature data to the Xinli digital software system monitoring platform through the wireless communication module, so that the monitoring platform can display the detection data of multiple sets of infrared sensors 103 in real time and visualize the equipment surface temperature distribution in the form of temperature cloud maps, trend curves, etc., and automatically mark abnormal temperature rise areas, such as hot spots exceeding the preset threshold. When a certain infrared sensor 103 detects that the temperature exceeds the threshold, the controller will send an early warning instruction to the monitoring platform, which can automatically push notifications to the mobile terminal of the operation and maintenance personnel according to the early warning level, and attach real-time temperature data and hot spot location information to prompt remote verification or on-site maintenance.

[0036] In summary: By increasing or decreasing the number of C-shaped frames 1, the device can quickly adapt to power equipment of different sizes. There is no need to customize a special model for each device, which greatly reduces procurement and inventory costs. During the installation of the enclosure, adsorption and release are achieved only through a purely mechanical structure, without the need for additional energy. The device is easy to operate and highly reliable, and is particularly suitable for scenarios such as power equipment where frequent installation and disassembly of monitoring devices are required.

[0037] Any portion not described in the present invention is the same as the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric power equipment overheating early warning device, characterized in that: include: A plurality of groups of U-shaped frames (1), each group of U-shaped frames (1) having a rotating rod (104) fixedly provided at the first end and an expansion opening (106) and a rotation opening (105) respectively provided at the second end, so that adjacent U-shaped frames (1) are squeezed through the expansion opening (106) by the rotating rod (104) to fit the rotation opening (105) of another U-shaped frame (1), thereby forming a rotation connection structure; the head and tail ends of the plurality of groups of rotationally connected U-shaped frames (1) are respectively rotationally connected to an L-shaped frame (101), and the free end of the L-shaped frame (101) is fixedly provided with a suction mechanism (2); The inner wall of each group of the L-shaped frames (1) is fixedly provided with a cone (102), and the interior of the cone (102) is fixedly provided with an infrared sensor (103). The signal output end of the infrared sensor (103) is electrically connected to the signal input end of the controller, and the control output end of the controller is electrically connected to the electric control end of the alarm. The controller and the alarm are both installed in an idle area of ​​the L-shaped frame.

2. The electric power equipment overheating early warning device according to claim 1, characterized in that: Each set of the C-shaped frames (1) is integrally formed of a plastic material. When the rotating rod (104) is squeezed and adapted to the rotating opening (105), the C-shaped frames (1) realize a detachable rotating connection of the rotating rod (104) through elastic deformation.

3. The electric power equipment overheating early warning device according to claim 2, characterized in that: A plurality of groups of infrared sensors (103) are connected via the rotating connection structure of the U-shaped frame (1) to form a circumferential temperature measuring assembly. The temperature measuring assembly is fixed to the outer surface of the power equipment via an adsorption mechanism (2) to form a non-contact temperature monitoring belt, thereby achieving a ring array-type real-time scanning of the surface temperature of the power equipment.

4. The electric power equipment overheating early warning device according to claim 3, characterized in that: The infrared sensor (103) adopts an infrared temperature sensor of model XL16IT, and the controller adopts a microcontroller of model STM32.

5. The electric power equipment overheating early warning device according to claim 1, characterized in that: The suction mechanism (2) comprises a cone disk (201), the first end of the cone disk (201) is integrally formed with and connected to the connecting ring (202), and the connecting ring (202) is fixedly connected to the free end of the L-shaped frame (101) by means of interference fit; a suction cup (206) is provided inside the cone disk (201), the sealing lip of the suction cup (206) is sealingly connected to the first end of the ring disk (208), and the second end of the ring disk (208) is integrally formed with the outer surface of the cone disk (201).

6. The electric power equipment overheating early warning device according to claim 5, characterized in that: The first end of the suction cup (206) is fixedly connected to the first end of the threaded rod (204); the second end of the threaded rod (204) passes through the cone disc (201) and the connecting ring (202) in sequence and extends to the outside of the free end of the L-shaped frame (101); the extended end of the threaded rod (204) is threadedly connected to the butterfly head (203).

7. The electric power equipment overheating early warning device according to claim 6, characterized in that: The outer surface of the threaded rod (204) is provided with two sets of symmetrical guide rail grooves (205) along the axial direction. The guide rail grooves (205) are slidably matched with the guide rail blocks (207). The guide rail blocks (207) are integrally formed with the inner ring wall of the connecting ring (202).

8. The electric power equipment overheating early warning device according to claim 7, characterized in that: The threaded rod (204) forms an axial limiting structure through the sliding cooperation between the guide rail groove (205) and the guide rail block (207). The threaded rod (204) is driven to move axially by rotating the butterfly head (203). The axial movement of the threaded rod (204) drives the suction cup (206) to deform, thereby increasing the internal space volume of the suction cup (206) and forming a negative pressure adsorption structure.

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