Visual scanning acceptance device for octagonal raft foundation steel bar binding

Abstract

The invention discloses a visual scanning acceptance device for octagonal raft foundation steel bar binding, and relates to the technical field of visual scanning acceptance devices.The visual scanning acceptance device comprises a machine body and two scanning assemblies, the two scanning assemblies are symmetrically arranged on the machine body, the bottom face of the machine body is elastically connected with a movable sleeve, the movable sleeve is slidably connected with a sliding ring, and the sliding ring is slidably connected with the machine body. A positioning sleeve is arranged on the outer side of the movable sleeve, an inner concave part matched with the sliding ring is formed in the movable sleeve, and a limiting sliding block is elastically connected into the positioning sleeve; according to the device, by means of linkage matching among the movable sleeve, the sliding ring, the limiting sliding block and other components, daily buffering and a secondary buffering mechanism under special conditions are combined, reliable buffering protection can be provided for the device regardless of small jolt, small fluctuation and accidental falling at a high position in the daily construction environment, and the machine body is kept stable.

Description

Technical Field

[0001] The invention relates to the technical field of visual scanning acceptance devices, and in particular to a visual scanning acceptance device used for octagonal raft foundation reinforcement binding. Background Art

[0002] The visual scanning acceptance device for steel bar binding is a high-tech equipment specially used in the field of engineering construction, especially in the construction of concrete structures, for rapid and accurate acceptance of steel bar binding conditions. Through high-precision image capture and analysis, it can accurately identify key indicators such as the binding position, quantity, and tightness of the steel bars, thereby ensuring that the quality of the steel bar binding meets the relevant standards and specifications.

[0003] When the scanning and acceptance device is scanning and accepting the binding of the octagonal raft foundation steel bars, most of the time the staff holds the handle to drive the scanning and acceptance device to scan and accept the binding of the steel bars. When the staff's hand position slips, the device will easily fall to the ground, which will cause damage to the two scanning components set up in the device, reducing the service life of the device, and no protective mechanism is set to protect the hand-held device.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] The object of the present invention is to provide a visual scanning and acceptance device for octagonal raft foundation reinforcement binding to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides a visual scanning and acceptance device for the steel bar binding of an octagonal raft foundation, comprising a fuselage and a scanning component, wherein there are two scanning components, which are symmetrically arranged on the fuselage, and a movable sleeve is elastically connected to the bottom surface of the fuselage, and a sliding ring is slidably connected to the movable sleeve, and a positioning sleeve is arranged on the outer side of the movable sleeve, and an inner recess adapted to the sliding ring is opened on the movable sleeve, and a limiting slider is elastically connected in the positioning sleeve.

[0007] Furthermore, the movable sleeve is hollow, a through hole is provided on the bottom surface of the movable sleeve, a fixing column is slidably connected in the movable sleeve, a connecting ring is provided on the outer side of the movable sleeve, a buffer spring is provided between the connecting ring and the fuselage, and the indentation is provided on the connecting ring.

[0008] Furthermore, a positioning groove is provided in the positioning sleeve, the limiting slider is slidably connected in the positioning groove, and a limiting spring is provided between the limiting slider and the positioning groove.

[0009] Furthermore, the limit sliding block is provided with a chamfer.

[0010] Furthermore, there are four movable sleeves and sliding rings, and the four movable sleeves and sliding rings are distributed at four corners of the bottom surface of the fuselage at intervals.

[0011] Furthermore, one end of each of the four movable sleeves is fixedly connected to a buffer plate, and both ends of the buffer plate are bent downward.

[0012] Furthermore, an airbag ring is arranged on the buffer plate, the airbag ring is wrapped around the outer side of the buffer plate, and the airbag ring protrudes from the surface of the buffer plate.

[0013] Furthermore, a display screen is disposed on the top surface of the fuselage, and the display screen is electrically connected to the scanning component. A control button is disposed on the front surface of the fuselage, and the control button is electrically connected to the scanning component and the display screen.

[0014] Furthermore, one end of a handle is fixedly connected to the back of the body, and the other end of the handle is fixedly connected to a strap.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, the linkage between the movable sleeve, the sliding ring, the limit slider and other components is utilized to realize the combination of daily buffering and the secondary buffering mechanism under special circumstances. Whether facing small bumps and ups and downs in the daily construction environment or accidental falls from heights, the device can provide reliable buffering protection and maintain the stability of the fuselage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0018] Figure 2 It is a side view of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0019] Figure 3 It is a schematic diagram of the structure of a buffer component of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0020] Figure 4 A schematic diagram of a buffer plate structure of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0021] Figure 5 A schematic diagram of the internal structure of a movable sleeve of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0022] Figure 6 It is a schematic diagram of the sliding ring structure of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0023] Figure 7 It is a schematic diagram of the limit slider structure of a visual scanning acceptance device for octagonal raft foundation reinforcement binding;

[0024] Figure 8 The figure is a schematic diagram of the cross-sectional structure of a visual scanning acceptance device used for the reinforcement binding of an octagonal raft foundation.

[0025] In the figure: 1. Body; 2. Scanning component; 3. Display screen; 4. Control button; 5. Grip; 501. Strap; 6. Movable sleeve; 601. Fixed column; 602. Connecting ring; 603. Buffer spring; 7. Sliding ring; 701. Positioning sleeve; 702. Indentation; 703. Positioning groove; 704. Limiting slider; 705. Limiting spring; 706. Chamfer; 8. Buffer plate; 801. Airbag ring. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-8 , the present invention provides a technical solution:

[0028] A visual scanning and acceptance device for octagonal raft foundation steel bar binding comprises a fuselage 1 and a scanning assembly 2, wherein two scanning assemblies 2 are symmetrically arranged on the fuselage 1, a display screen 3 is arranged on the top surface of the fuselage 1, and the display screen 3 is electrically connected to the scanning assembly 2, a control button 4 is arranged on the front surface of the fuselage 1, and the control button 4 is electrically connected to the scanning assembly 2 and the display screen 3, one end of a handle 5 is fixedly connected to the back surface of the fuselage 1, and a binding strap 501 is fixedly connected to the other end of the handle 5.

[0029] After the device is started, two scanning components 2 symmetrically arranged on the body 1 start to work.

[0030] Scanning component 2 uses visual scanning technology to perform an all-round scan of the steel bar binding parts of the octagonal raft foundation, capture key information such as the arrangement, spacing, and binding firmness of the steel bars, and convert it into electronic data signals in real time.

[0031] Since the scanning component 2 is electrically connected to the display screen 3 on the top surface of the body 1, these data will be quickly transmitted to the display screen 3, and the scanning results will be presented in the form of visual images or related parameters so that the operator can view them intuitively.

[0032] The control button 4 located on the front of the body 1 serves as a control hub.

[0033] It is electrically connected to the scanning component 2 and the display screen 3. By pressing different control buttons 4, the operator can realize functions such as starting and pausing the scanning operation, switching the screen content displayed on the display screen 3, adjusting the image clarity, etc., so as to flexibly operate according to actual acceptance requirements and accurately obtain the required steel bar binding information.

[0034] The handle 5 fixed on the back of the body 1 is matched with the strap 501 to provide convenience for the operator to hold the device.

[0035] The operator holds the handle 5 and uses the strap 501 to firmly connect the hand with the handle 5, so as to conveniently move the device along the edge or inner area of ​​the octagonal raft foundation, so that the scanning assembly 2 can cover the entire area to be inspected to ensure that nothing is missed.

[0036] With the help of the high-precision scanning component 2, extremely fine steel bar binding details can be captured, avoiding possible omissions in manual visual inspection, greatly improving the accuracy of steel bar binding acceptance, and ensuring the structural quality of the raft foundation.

[0037] The visual display screen 3 makes the acceptance results clear at a glance, allowing staff to quickly locate problems.

[0038] The control buttons 4 are centrally arranged on the front of the body 1, which conforms to human operating habits. The operator can easily control the scanning process and display content without complicated movements.

[0039] The design of the handle 5 and the strap 501 fits the hand grip, making long-term hand-held operation easy, reducing the operator's work intensity and improving acceptance efficiency.

[0040] Two symmetrically arranged scanning components 2, together with a handle 5 that is convenient for hand-held movement, allow the device to flexibly shuttle between various positions of the octagonal raft foundation, ensuring a comprehensive scanning and acceptance of the steel bar binding conditions of the entire foundation without blind spots, without missing any potential quality risks.

[0041] The bottom surface of the fuselage 1 is elastically connected with a movable sleeve 6, the movable sleeve 6 is hollow, and a through hole is provided on the bottom surface of the movable sleeve 6. A fixed column 601 is slidably connected in the movable sleeve 6, and a connecting ring 602 is provided on the outer side of the movable sleeve 6. A buffer spring 603 is provided between the connecting ring 602 and the fuselage 1, and the recessed recess 702 is provided on the connecting ring 602.

[0042] The movable sleeve 6 is slidably connected with a sliding ring 7, a positioning sleeve 701 is arranged on the outer side of the movable sleeve 6, an inner recess 702 adapted to the sliding ring 7 is provided on the movable sleeve 6, a limiting slider 704 is elastically connected in the positioning sleeve 701, a positioning groove 703 is provided in the positioning sleeve 701, the limiting slider 704 is slidably connected in the positioning groove 703, and a limiting spring 705 is arranged between the limiting slider 704 and the positioning groove 703.

[0043] In normal use scenarios, the bottom surface of the body 1 is elastically connected to the movable cover 6 to cope with daily slight vibrations and uneven contact surfaces.

[0044] The movable sleeve 6 is hollow and is slidably connected to the fixed column 601 inside. When the device is placed on an octagonal raft foundation surface with small undulations, the fixed column 601 can slide appropriately inside the movable sleeve 6 to adapt to the height difference.

[0045] At the same time, the buffer spring 603 between the connecting ring 602 and the body 1 plays a role in absorbing and buffering the slight impact forces generated daily, maintaining the stability of the body 1, ensuring the normal operation of the scanning component 2, and avoiding vibration interference with scanning accuracy.

[0046] When the device accidentally falls from a high place, the huge impact force generated instantly causes the buffer spring 603 to shrink rapidly, and the fixed column 601 is forced to move toward the inner top of the movable sleeve 6.

[0047] During this process, the sliding ring 7 is affected by the impact force, slides along the movable sleeve 6 toward the connecting ring 602 , and enters the sunken recess 702 on the connecting ring 602 .

[0048] Since the sliding ring 7 has an inclined surface design, when the limiting slider 704 contacts the elastically connected limiting slider 704 in the positioning sleeve 701 , the limiting slider 704 will slide along the inclined surface of the sliding ring 7 to the side of the connecting ring 602 to release the limiting of the connecting ring 602 .

[0049] At this time, the originally compressed buffer spring 603 is released, and its rebound elastic force is used to offset the impact force generated by the fall, thereby effectively alleviating the strong impact force when falling from a high position and protecting the fuselage 1 and the internal precision components.

[0050] The daily buffer spring 603 buffer is combined with the secondary buffer mechanism in special circumstances. Whether it is facing small bumps and ups and downs in the daily construction environment or extreme high-altitude drop accidents, it can provide reliable buffer protection for the device and maintain the stability of the fuselage 1. This is of great significance for high-precision visual scanning acceptance work, and can always ensure the accuracy of the scanning results.

[0051] Falling from a height is likely to cause damage to the precise scanning components 2, display screen 3 and other equipment components. This ingenious buffer design offsets the impact force through the secondary release of the buffer spring 603, greatly reducing the probability of equipment damage due to accidental falls, reducing maintenance costs and construction delays caused by equipment replacement, and ensuring that the acceptance work can be carried out continuously and smoothly.

[0052] By utilizing the linkage between the movable sleeve 6, the sliding ring 7, the limit slider 704 and other components, there is no need for an additional complex power device. Only mechanical structure and simple elastic elements are required to achieve the conversion of the buffering function to cope with different impact forces. This ensures that the entire device has a relatively compact and simple structure while ensuring functionality, and is easy to manufacture, install and maintain.

[0053] The limiting slider 704 is provided with a chamfer 706 .

[0054] A chamfer 706 is provided on the limit slider 704 . When the device is subjected to impact force and the sliding ring 7 slides toward the connecting ring 602 and enters the inner recess 702 , the chamfer 706 plays a guiding role.

[0055] Due to the existence of chamfer 706, when sliding ring 7 contacts limiting slider 704, it does not collide head-on, but gradually squeezes limiting slider 704 along the slope of chamfer 706, making it easier for limiting slider 704 to slide to one side along positioning groove 703, thus smoothly releasing the limit on connecting ring 602 and allowing buffer spring 603 to be released in time to counteract the impact force.

[0056] The chamfer 706 design of the limit slider 704 reduces the friction and collision loss between the sliding ring 7 and the limit slider 704. The arc-shaped top surface reduces the wear risk of the sliding ring 7 and the connecting ring 602. The chamfer 706 avoids the limit slider 704 from being damaged by cracking, deformation, etc. due to frequent and violent collisions, making the overall mechanical structure of the device more durable, reducing the cost investment and downtime for maintenance caused by frequent replacement of worn components, and extending the stable service life of the device.

[0057] When encountering sudden high-impact situations such as falling from a height, the secondary release mechanism of the buffer spring 603 can be quickly triggered to buffer the impact force in a very short time, thereby better protecting the fuselage 1 and internal components.

[0058] During daily debugging and inspection of the device, the smooth interaction of components also allows operators to adjust the position of the sliding ring 7 more easily without spending too much energy to overcome jamming and friction resistance, which provides a better operating feel and indirectly improves work efficiency.

[0059] There are four movable sleeves 6 and sliding rings 7 , and the four movable sleeves 6 and sliding rings 7 are distributed at four corners of the bottom surface of the fuselage 1 at intervals.

[0060] There are four movable sleeves 6 and sliding rings 7 in total, which are distributed at four corners of the bottom surface of the fuselage 1 at intervals.

[0061] When the device is placed on the surface of the octagonal raft foundation, or encounters an accidental drop or collision to generate impact force, the movable sleeves 6 and the sliding rings 7 at the four corners will respond synchronously.

[0062] Since the impact force is distributed at the four corners, it can be distributed to each movable sleeve 6 more evenly, avoiding premature damage of a component due to excessive force at a single point, and allowing the buffer spring 603 and the entire buffer system to work together to more stably absorb and buffer external forces from different directions and intensities.

[0063] For example, when the device falls from a certain tilt angle, the layout of the four corners can ensure that the impact force in each direction is buffered and resolved by the movable sleeves 6 at corresponding positions.

[0064] In daily use scenarios, the four movable sleeves 6 and the sliding ring 7 cooperate with other components on the bottom surface of the fuselage 1 to play a supporting role.

[0065] Whether it is moving scanning on the uneven surface of the raft foundation or in a static state, the layout of the four corners can stabilize the fuselage 1 from multiple directions, maintain the horizontal posture of the fuselage 1, create a stable working environment for the scanning component 2 installed on the fuselage 1, and ensure that the scanning accuracy is not affected by the shaking of the fuselage 1.

[0066] The four-corner distribution method builds a stable supporting structure, greatly improving the overall stability of the device.

[0067] This is crucial for high-precision visual scanning acceptance work. The stable body 1 helps to reduce the blur and distortion of the scanned image, allowing acceptance personnel to obtain more accurate and clear images of the steel bar binding situation, thereby improving the reliability of the acceptance results.

[0068] The decentralized layout allows the buffering efficiency of the buffering system to be fully utilized, and the impact forces in all directions can be buffered promptly and effectively. Compared with the single-point or two-point buffering layout, this four-corner layout can cope with more complex and multi-angle impact conditions, protecting the fuselage 1 and internal components from damage, and significantly reducing the risk of equipment failure due to accidental impact.

[0069] The construction site environment of the octagonal raft foundation is complex and changeable. The movable sleeves 6 and sliding rings 7 arranged at the four corners can flexibly adapt to working surfaces with different inclinations and flatnesses, ensuring that the device has sufficient buffering and supporting capabilities regardless of its placement state, thereby enhancing the device's adaptability to complex construction environments.

[0070] One end of the four movable sleeves 6 is fixedly connected to a buffer plate 8, and both ends of the buffer plate 8 are bent downward.

[0071] The buffer plates 8 connected to the four movable sleeves 6 are respectively bent downward at both ends.

[0072] When the device is placed on an octagonal raft foundation, or encounters vibration or impact during use, both ends of the buffer plate 8 first contact the working surface.

[0073] Due to its downwardly bent shape, at the moment of contact, the impact force will cause the buffer plate 8 to undergo elastic deformation along the bend.

[0074] This deformation is a preliminary response to the impact force. By changing its own shape, the buffer plate 8 disperses the impact force to the entire plate surface, avoiding stress concentration at a certain point, and then gradually absorbs and dissipates energy, providing buffering protection for the fuselage 1.

[0075] The buffer plates 8 distributed at the four corners of the bottom surface of the fuselage 1 function synchronously.

[0076] No matter which direction the impact force comes from, the four buffer plates 8 can cooperate to support and buffer the fuselage 1 from different directions.

[0077] For example, when one side of the device is subjected to a large external force, the deformation amplitude of the buffer plate 8 on the corresponding side increases, and the other buffer plates 8 will also be fine-tuned accordingly, working together to maintain the balance and stability of the fuselage 1, ensuring that precision components such as the scanning component 2 installed on the fuselage 1 are in a stable working environment.

[0078] The bending design at both ends of the buffer plate 8 cleverly utilizes the elastic deformation characteristics of the material. Compared with the straight plate structure, it can disperse the impact force more efficiently and significantly improve the buffering capacity.

[0079] This can reduce the vibration of the body 1 and prevent the high-precision scanning component 2 from being disturbed during operation, thereby improving the accuracy of visual scanning acceptance.

[0080] The buffer plates 8 distributed at the four corners stabilize the fuselage 1 from multiple dimensions to prevent the fuselage 1 from shaking or tilting due to factors such as the uneven surface of the raft foundation and accidental collision.

[0081] The stable fuselage 1 helps the operator to control the device more smoothly, ensuring that the scanning operation can cover all areas of the octagonal raft foundation without missing any key parts, thereby improving the comprehensiveness of the acceptance work.

[0082] The buffer plate 8 bears most of the impact force in daily use, effectively protecting the electronic components and mechanical structures inside the body 1 from direct impact.

[0083] It reduces the risk of loosening and damage of components due to frequent vibrations and collisions, extends the overall service life of the device, and reduces equipment operation and maintenance costs.

[0084] An airbag ring 801 is disposed on the buffer plate 8 . The airbag ring 801 is wrapped around the outside of the buffer plate 8 , and the airbag ring 801 protrudes from the surface of the buffer plate 8 .

[0085] The airbag ring 801 is tightly wrapped around the outer side of the buffer plate 8 and protrudes from the surface of the buffer plate 8 .

[0086] When the device contacts the octagonal raft foundation, whether it is the initial contact when placed or encountering an unexpected collision or bump during use, the airbag ring 801 will be the first to be subjected to force.

[0087] Since gas has good compressibility, when the airbag ring 801 is squeezed by external force, the internal gas is compressed and the distance between gas molecules is reduced to store and disperse the impact energy. This process converts the rigid impact force that originally acts directly on the buffer plate 8 and the fuselage 1 into relatively soft gas compression energy, playing a key role in buffering and shock absorption.

[0088] The airbag ring 801 works in cooperation with the buffer plate 8 . The buffer plate 8 serves as the first line of defense, firstly receiving part of the impact force and dispersing it preliminarily. The remaining impact force that is not completely absorbed by the buffer plate 8 is then transmitted to the airbag ring 801 .

[0089] While providing cushioning, the airbag ring 801 can also adapt to different impact angles and forces due to its flexible nature, filling the possible cushioning "dead corners" of the cushioning plate 8. The two complement each other to provide all-round, multi-level cushioning protection for the fuselage 1.

[0090] The airbag ring 801 further enhances the buffering effect on the basis of the buffer plate 8. Facing high-intensity impact scenarios such as sudden falls from heights and accidental collisions, it can greatly reduce the impact of the impact force on the fuselage 1 and internal components, significantly reduce the risk of equipment damage, ensure that the visual scanning acceptance device can continue to operate stably, and reduce the frequency of maintenance and replacement of equipment.

[0091] The design of the airbag ring 801 protruding from the surface of the buffer plate 8 is ingenious. When the device is installed close to the steel bar binding area of ​​the octagonal raft foundation, the airbag ring 801 first contacts the working surface, avoiding the rigid buffer plate 8 from directly scratching and colliding with the bound steel bars, protecting the integrity of the construction results and meeting the high standards for construction quality control.

[0092] The flexible airbag ring 801 can adapt to various uneven and irregular raft foundation surfaces. Together with the buffer plate 8, the device can still be stably placed and flexibly moved in complex and changeable construction site environments, which broadens the scope of use of the equipment and facilitates accurate visual scanning and acceptance of steel bar binding under different working conditions.

Claims

1. A visual scanning acceptance device for octagonal raft foundation reinforcement binding, comprising a fuselage (1) and a scanning assembly (2), wherein the scanning assembly (2) has two components symmetrically arranged on the fuselage (1), characterized in that: The bottom surface of the body (1) is elastically connected to a movable sleeve (6), a sliding ring (7) is slidably connected to the movable sleeve (6), a positioning sleeve (701) is arranged on the outer side of the movable sleeve (6), an inner recess (702) adapted to the sliding ring (7) is provided on the movable sleeve (6), and a limiting slider (704) is elastically connected to the positioning sleeve (701).

2. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 1, characterized in that: The movable sleeve (6) is hollow, and a through hole is provided on the bottom surface of the movable sleeve (6). A fixing column (601) is slidably connected in the movable sleeve (6). A connecting ring (602) is provided on the outer side of the movable sleeve (6). A buffer spring (603) is provided between the connecting ring (602) and the fuselage (1), and the inner recess (702) is provided on the connecting ring (602).

3. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 2, characterized in that: The positioning sleeve (701) is provided with a positioning groove (703), the limiting slider (704) is slidably connected in the positioning groove (703), and a limiting spring (705) is provided between the limiting slider (704) and the positioning groove (703).

4. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 3, characterized in that: The limiting sliding block (704) is provided with a chamfer (706).

5. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 4, characterized in that: There are four movable sleeves (6) and sliding rings (7), and the four movable sleeves (6) and sliding rings (7) are distributed at intervals at the four corners of the bottom surface of the fuselage (1).

6. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 5, characterized in that: One end of each of the four movable sleeves (6) is fixedly connected to a buffer plate (8), and both ends of the buffer plate (8) are bent downward.

7. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 6, characterized in that: An airbag ring (801) is provided on the buffer plate (8), the airbag ring (801) is wrapped around the outside of the buffer plate (8), and the airbag ring (801) protrudes from the surface of the buffer plate (8).

8. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 7, characterized in that: A display screen (3) is arranged on the top surface of the body (1), and the display screen (3) is electrically connected to the scanning component (2); a control button (4) is arranged on the front surface of the body (1), and the control button (4) is electrically connected to the scanning component (2) and the display screen (3).

9. A visual scanning and acceptance device for octagonal raft foundation reinforcement binding as claimed in claim 8, characterized in that: One end of a handle (5) is fixedly connected to the back of the body (1), and the other end of the handle (5) is fixedly connected to a binding strap (501).

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