Firework lead detection device

Abstract

The utility model relates to a firework lead detection device. The firework lead detection device comprises a mounting rack, a translation seat, a translation driving piece and an image acquisition assembly. As only one row of cameras need to be arranged, compared with a scheme that a plurality of cameras are arranged in a matrix in a traditional hoisting type firework lead detection device, the number of the cameras is greatly reduced, and the manufacturing cost of the firework lead detection device is effectively reduced. By translating the image acquisition assembly, the lead detection can be carried out on each row or column of firework cylinders on the firework lump right below in sequence, so that the application range of the firework lead detection device is greatly expanded. During installation, even if the installation frame is slightly deviated during installation, it can be guaranteed that the image acquisition assembly can accurately detect the firework lump below through the mode of moving the image acquisition assembly. Therefore, the firework lead detection device is low in manufacturing cost, wide in application range and low in installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of fireworks detection equipment technology, and in particular to a fireworks fuse detection device. Background Technology

[0002] Fireworks, as a form of entertainment that produces sound, light, and color, are widely used in grand festivals, ceremonies, and performances. With the continuous improvement of people's living standards, the use of combination fireworks has also entered countless households. In the production process of combination fireworks, all procedures are operated and inspected manually. However, with increasing emphasis on production safety and improved production efficiency, current combination fireworks production has generally achieved semi-automated assembly line production, using a combination of human and machine methods for production and inspection.

[0003] One crucial step is inspecting the quality of the fireworks' fuses, including the number of fuses, fuse length, any broken fuses, and the connection status of fuses between each firework tube. Defective fuse quality can prevent the fireworks from igniting properly. To reduce the size of the fireworks fuse inspection equipment, a suspended fireworks fuse inspection device is currently used. This device is typically suspended directly above the conveyor belt used to transport the fireworks, and is used to inspect the fuses of the fireworks on the conveyor belt.

[0004] However, traditional suspended fireworks fuse detection devices use multiple cameras arranged in a matrix to capture images of fireworks passing directly below them. Due to the high cost of the cameras, this type of suspended fireworks fuse detection device with multiple cameras arranged in a matrix has a high manufacturing cost. It can only detect fireworks of the same size as the multiple cameras or smaller, thus having a limited scope of application. Moreover, during installation, it is necessary to ensure that the multiple cameras are aligned with the conveyor equipment directly below, which requires high precision in the installation position and makes the installation difficult. Utility Model Content

[0005] Therefore, it is necessary to provide a fireworks fuse detection device that can reduce manufacturing costs, expand the scope of application, and reduce installation difficulty.

[0006] A fireworks fuse detection device, comprising:

[0007] Mounting brackets are used to suspend and fix them to the ceiling, walls or other objects in the workshop.

[0008] A translational base is slidably mounted on the mounting bracket along a first linear direction;

[0009] A translation drive component is connected to the translation seat and is used to drive the translation seat to reciprocate along the first linear direction;

[0010] An image acquisition component includes a skeleton and multiple cameras; the skeleton is mounted on the translation mount; the multiple cameras are spaced apart on the skeleton along a second straight line direction perpendicular to the first straight line direction.

[0011] The aforementioned fireworks fuse detection device requires only one row of cameras. By moving the image acquisition component, it can sequentially detect the fuses of each row or column of fireworks tubes directly below. Compared to traditional suspended fireworks fuse detection devices that arrange multiple cameras in a matrix, this significantly reduces the number of cameras and effectively lowers the manufacturing cost. Furthermore, because the image acquisition component can be moved to sequentially detect the fuses of each row or column of fireworks tubes directly below, the device can achieve complete detection of fireworks of any length in the first straight line direction. If the length of the fireworks to be detected increases significantly in the second straight line direction, a small number of cameras can be added in that direction to achieve complete detection, greatly expanding its applicability. Additionally, because the image acquisition component can be moved on the mounting frame via a translation mount, even slight deviations in the mounting frame can be corrected by moving the image acquisition component to ensure accurate detection of the fireworks below. Therefore, the aforementioned fireworks fuse detection device combines low manufacturing cost, wide applicability, and low installation difficulty. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the fireworks fuse detection device in a preferred embodiment of the present invention;

[0013] Figure 2 for Figure 1 The diagram shows the installation status of the guide structure, slider structure, and translation drive component in the firework fuse detection device.

[0014] Figure 3 for Figure 1 A cross-sectional view of the guide structure in the firework fuse detection device shown.

[0015] Figure 4 for Figure 1 A schematic diagram of the slider structure in the firework fuse detection device shown.

[0016] Figure 5 for Figure 1 The diagram shows the structure of the mounting frame in the fireworks fuse detection device.

[0017] Explanation of reference numerals in the detailed embodiments: 100, Firework fuse detection device; 110, Mounting frame; 111, Fixing frame; 1111, Fixing rod; 1112, Second mounting point; 1113, Third mounting point; 112, Support frame; 1121, First mounting point; 1122, Mounting rod; 1123, Connecting rod; 1124, Connecting component; 1125, Fourth mounting point; 113, Reinforcing rod; 120, Translation seat; 130, Translation drive component; 140, Image acquisition assembly; 1 41. Frame; 142. Camera; 150. Guide structure; 151. Guide rail; 1511. Guide protrusion; 152. Limiting mounting piece; 153. Guide hanging plate; 154. U-shaped fixing piece; 155. Guide rail seat; 160. Slider structure; 161. Inner groove; 1611. Mounting groove; 162. Clamping groove; 163. Hanging hole; 164. Slider body; 165. Clamping slider; 166. Suspension block; 10. First linear direction; 20. Second linear direction; 30. Third linear direction. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements. It is also understood that when an element is referred to as being "between" two elements, it may be the only one between the two elements, or there may be one or more intermediate elements.

[0021] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0022] Figure 1The diagram illustrates the structure of a fireworks fuse detection device according to one embodiment of the present invention. For ease of explanation, the accompanying drawings only show structures relevant to the embodiments of the present invention.

[0023] Please see Figure 1 The preferred embodiment of this utility model includes the mounting bracket 110, the translation seat 120, the translation drive component 130, and the image acquisition component 140.

[0024] Mounting bracket 110 is used to suspend and fix the device in the air onto the ceiling, wall, or other objects within the workshop. These other objects can be dedicated brackets for installing the fireworks fuse detection device 100 within the workshop, or other equipment or structures within the workshop, such as partitions, fireworks sorting equipment, fireworks packaging equipment, etc., as long as these devices or structures can be installed in the same area as the fireworks conveying equipment and the fireworks fuse detection device while ensuring safety, and can meet the installation requirements of the fireworks fuse detection device 100.

[0025] The translation mount 120 is slidably mounted on the mounting bracket 110 along a first linear direction 10. The translation drive 130 is drively connected to the translation mount 120 and drives the translation mount 120 to reciprocate along the first linear direction 10. The image acquisition assembly 140 includes a frame 141 and a plurality of cameras 142. The frame 141 is mounted on the translation mount 120. The plurality of cameras 142 are spaced apart on the frame 141 along a second linear direction 20 perpendicular to the first linear direction 10.

[0026] When the fireworks fuse detection device 100 is located on a horizontal plane, the first straight direction 10 and the second straight direction 20 are mutually perpendicular horizontal directions. In practical applications, after the fireworks fuse detection device 100 is installed in place, the conveying direction of the conveying device located below the image acquisition component 140 can be consistent with the first straight direction 10 or the second straight direction 20.

[0027] It should be noted that in practical applications, depending on the actual situation, the conveyor can be used to keep the firework cluster below the image acquisition component 140 until all the fuses of the firework cluster are detected. Alternatively, as the firework cluster is being transported by the conveyor and passes under the image acquisition component 140, the translation drive 130 can be used to drive the translation seat 120 to move the image acquisition component 140 quickly until all the fuses of the firework cluster are detected.

[0028] When it is necessary to use the above-mentioned fireworks fuse detection device 100 to detect the fuses of fireworks on the conveying equipment, it is only necessary to use multiple cameras 142 to detect the fuses of the first row or column of fireworks tubes on the fireworks when the fireworks are conveyed to the image acquisition component 140. Then, the translation drive 130 drives the translation seat 120 to move the image acquisition component 140 along the first straight line direction 10, so as to detect the fuses of each row or column of fireworks tubes on the fireworks in the first straight line direction 10 in sequence until the fuse detection of all fireworks tubes on the fireworks is completed.

[0029] Because only one row of cameras 142 is needed, the fuse detection of each row or column of firework tubes directly below can be performed sequentially by moving the image acquisition component 140. Compared with the traditional scheme of arranging multiple cameras 142 in a matrix in the suspended firework fuse detection device, the number of cameras 142 is greatly reduced, effectively lowering the manufacturing cost of the firework fuse detection device 100. Moreover, because the fuse detection of each row or column of firework tubes on the firework mass directly below can be performed sequentially by moving the image acquisition component 140, the firework fuse detection device 100 can achieve complete detection of firework masses of any length in the first straight line direction 10. If the length of the firework mass to be detected in the second straight line direction 20 increases significantly, complete detection can also be achieved by adding a small number of cameras 142 in the second straight line direction 20, greatly increasing the applicability. Furthermore, because the image acquisition component 140 can be moved horizontally on the mounting bracket 110 via the translation seat 120, even if there is a slight deviation in the installation of the mounting bracket 110, the image acquisition component 140 can still accurately detect the firework fuse below by moving it. Therefore, the aforementioned firework fuse detection device 100 combines low manufacturing cost, wide range of applications, and low installation difficulty.

[0030] In some embodiments, the frame 141 has a plurality of mounting positions (not shown) spaced apart along a second straight direction 20. The number of mounting positions is greater than or equal to the number of cameras 142. The plurality of cameras 142 are respectively mounted one-to-one on the plurality of consecutive mounting positions. It should be noted that the plurality of consecutive mounting positions refers to a plurality of mounting positions whose numbers are consecutive when counted from the first mounting position on which the camera 142 is mounted.

[0031] In practical applications, a camera 142 can be installed at each installation position according to actual needs, or the camera 142 can be installed only at some installation positions. Therefore, the above-mentioned suspended delay fuse detection device can select to install different numbers of cameras 142 according to the usage scenario (i.e. the specifications of the fireworks that the device needs to or frequently detects) in order to ensure complete detection of the fireworks while further controlling the manufacturing cost of the fireworks fuse detection device 100.

[0032] Please refer to the following: Figure 2 In some embodiments, the fireworks fuse detection device 100 further includes a guide structure 150 and a slider structure 160. The guide structure 150 is mounted on the mounting bracket 110. The slider structure 160 is slidably mounted on the guide structure 150. A translation seat 120 is mounted on the slider structure 160. Specifically, the translation drive 130 is drivenly connected to the slider structure 160 to achieve a drive connection with the translation seat 120 through the slider structure 160. Therefore, the translation seat 120 achieves a sliding connection on the mounting bracket 110 through the slider structure 160 and the guide structure 150. The slider structure 160 and the guide structure 150 cooperate with each other to guide the translation direction of the translation seat 120, reducing the trajectory deviation that may occur when the image acquisition component 140 performs fuse detection on the fireworks while translating. This improves the detection accuracy and reliability of the image acquisition component 140.

[0033] Please refer to the following: Figure 3 Furthermore, in some embodiments, the guide structure 150 includes a guide rail 151 and limiting mounts 152 fixed to both ends of the guide rail 151. The guide rail 151 is mounted on the mounting bracket 110. The slider structure 160 is slidably mounted on the guide rail 151. The two limiting mounts 152 are configured to contact the slider structure 160 to limit the extreme positions of the slider structure 160's sliding.

[0034] The guide rail 151 not only improves the guiding accuracy of the guide structure 150, but also enhances the stability of the translation seat 120's movement. This ensures that the camera 142 remains stable during the translation process of the image acquisition component 140, further improving the accuracy of the fuse detection. Furthermore, the two limiting mounting pieces 152 respectively limit the slider structure 160 to its extreme positions at both ends of the guide rail 151, reducing the probability of the slider structure 160 slipping off the guide rail 151 during use and improving the safety of the fireworks fuse detection device 100.

[0035] Please refer to the following: Figure 4 Furthermore, in some embodiments, the guide structure 150 includes a guide rail 151 mounted on the mounting bracket 110, a guide plate 153, and U-shaped fasteners 154 disposed at both ends of the guide plate 153. Guide ridges 1511 are provided on both sides of the guide rail 151. The two ends of the guide plate 153 are detachably mounted to the side of the guide rail 151 facing away from the mounting bracket 110 via two U-shaped fasteners 154, and are parallel to the extending direction of the guide rail 151.

[0036] The slider structure 160 has an inner groove 161 formed on the side facing the mounting bracket 110. Both sidewalls of the inner groove 161 have clamping grooves 162 that match the guide protrusions 1511. The bottom wall of the inner groove 161 has a hanging hole 163. At least a portion of the guide rail 151 is located within the inner groove 161, and the two guide protrusions 1511 respectively engage with the two clamping grooves 162. The guide hanging plate 153 is slidably inserted into the hanging hole 163.

[0037] In practical applications, since the fireworks fuse detection device 100 is suspended and fixed on the wall, roof or other objects in the workshop, and it is necessary to detect the fuse of the fireworks below the image acquisition component 140, the image acquisition component 140 is suspended below the mounting bracket 110. At this time, the slider structure 160 is mounted on the guide structure 150 by means of the guide plate 153 slidably passing through the hanging hole 163, so as to avoid the probability of the slider structure 160 falling off the guide structure 150 due to its own weight and the weight of the image acquisition component 140, which effectively improves the safety of the fireworks fuse detection device 100.

[0038] Meanwhile, the guide protrusion 1511 and the clamping groove 162 cooperate with each other to ensure the guiding accuracy between the slider structure 160 and the guide structure 150, and make the slider structure 160 slide more smoothly on the guide structure 150.

[0039] Furthermore, in some embodiments, the slider structure 160 includes a slider body 164. An inner groove 161 is formed on the side of the slider body 164 facing the mounting bracket 110. A clamping slider 165 is provided on each of the two side walls of the inner groove 161. A clamping groove is formed on the side of the clamping slider 165 facing the center line of the inner groove 161. A mounting groove 1611 is formed on the bottom wall of the inner groove 161. A suspension block 166 is detachably mounted in the mounting groove 1611. A hanging hole 163 is formed on the portion of the suspension block 166 protruding from the bottom wall of the inner groove 161.

[0040] The clamping slider 165 can be fixed to the side wall of the inner groove 161 by welding, screwing, etc. In this way, the slider structure 160 is divided into three parts: slider body 164, clamping slider 165 and suspension block 166. This not only reduces the processing difficulty of slider structure 160, but also allows for replacement when the inner wall of clamping groove and hanging hole 163 is worn. This is beneficial to extending the service life of slider structure 160 and reducing the operating cost of fireworks fuse detection device 100.

[0041] Specifically, each sidewall of the inner groove 161 is provided with a plurality of clamping grooves spaced apart along the first straight direction 10, and the bottom wall of the inner groove 161 is formed with a plurality of mounting slots 1611 spaced apart along the first straight direction 10. Each mounting slot 1611 is equipped with a suspension block 166 to improve the connection reliability between the slider structure 160 and the guide structure 150. More specifically, there are two mounting slots 1611, located at the two ends of the bottom wall of the inner groove 161, to facilitate the installation and removal of the suspension block 166.

[0042] Please refer to it again. Figure 1 and Figure 2 Furthermore, in some embodiments, the guide structure 150 also includes a guide rail seat 155. A guide rail 151 is detachably mounted on the guide rail seat 155. The guide rail seat 155 is detachably mounted on the mounting bracket 110.

[0043] During the assembly of the fireworks fuse detection device 100, since the installation of the guide structure 150 and the slider structure 160 is relatively complicated, the assembly of the guide structure 150, the slider structure 160 and the guide rail seat 155 can be completed on the ground. Then, the guide rail seat 155 with the guide structure 150 and the slider structure 160 assembled can be installed on the mounting frame 110 fixed on the wall, roof or other object, thereby further reducing the installation difficulty of the fireworks fuse detection device 100.

[0044] Please refer to the following: Figure 5 Furthermore, in some embodiments, the mounting bracket 110 includes a fixed bracket 111, a support bracket 112, and a reinforcing rod 113. The fixed bracket 111 is used to fix it to a wall in the workshop. One end of the support bracket 112 is detachably mounted to the fixed bracket 111. The support bracket 112 has a plurality of first mounting points 1121 spaced apart along a second linear direction 20. The guide rail seat 155 is optionally and detachably connected to one of the plurality of first mounting points 1121. The two ends of the reinforcing rod 113 are respectively connected to the fixed bracket 111 and the support bracket 112, and are located on the side of the support bracket 112 opposite to the image acquisition assembly 140.

[0045] In practical applications, one of multiple first installation points 1121 can be selected to install the guide rail seat 155 according to the location of the conveying equipment below and the on-site installation conditions, so that the installation position of the image acquisition component 140 in the second linear direction 20 can be freely adjusted.

[0046] Furthermore, in some embodiments, the fixing frame 111 includes two fixing rods 1111 parallel and spaced apart along a first straight direction 10. The support frame 112 includes two mounting rods 1122 parallel and spaced apart along the first straight direction 10, and a connecting rod 1123 connecting the two mounting rods 1122. Each mounting rod 1122 has a plurality of first mounting points 1121 spaced apart along a second straight direction 20. The two ends of the guide rail seat 155 are respectively detachably connected to one of the first mounting points 1121 on the two mounting rods 1122. All the first mounting points 1121 are located between the fixing rods 1111 and the connecting rod 1123. Thus, the mounting frame 110 is a frame structure assembled from rods, which is beneficial for the simplification and weight reduction of the mounting frame 110.

[0047] Specifically, in order to ensure the structural stability of the support frame 112, a connector 1124 is connected between the two mounting rods 1122, and the connector 1124 is located between all the first mounting points 1121 and the fixing rods 1111.

[0048] Furthermore, in some embodiments, the mounting bracket 111 has a plurality of second mounting points 1112 and a plurality of third mounting points 1113. The plurality of second mounting points 1112 and the plurality of third mounting points 1113 are all spaced apart along a third straight direction 30, which is perpendicular to the first straight direction 10 and the second straight direction 20, respectively. The support bracket 112 has a plurality of fourth mounting points 1125 spaced apart along the second straight direction 20.

[0049] One end of the support frame 112 is optionally detachably connected to one of the second mounting points 1112. One end of the reinforcing rod 113 is optionally detachably connected to one of the third mounting points 1113, and the other end is optionally detachably connected to one of the fourth mounting points 1125.

[0050] When the fireworks fuse detection device 100 is located on a horizontal plane, the first straight direction 10 and the second straight direction 20 are horizontal directions that are perpendicular to each other, and the third straight direction 30 is a vertical direction. Therefore, multiple second installation points 1112 and multiple third installation points 1113 are all set at intervals along the vertical direction.

[0051] In practical applications, the position and height of the image acquisition component 140 can be adjusted by installing the support frame 112 on different second installation points 1112. In order to ensure the levelness of the support frame 112, suitable third installation points 1113 and fourth installation points 1125 can be selected at both ends of the connecting rod 1123 respectively.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fireworks fuse detection device, characterized in that, include: Mounting brackets are used to suspend and fix them to the ceiling, walls or other objects in the workshop. A translational base is slidably mounted on the mounting bracket along a first linear direction; A translation drive component is connected to the translation seat and is used to drive the translation seat to reciprocate along the first linear direction; An image acquisition component includes a skeleton and multiple cameras; the skeleton is mounted on the translation mount; the multiple cameras are spaced apart on the skeleton along a second straight line direction perpendicular to the first straight line direction.

2. The fireworks fuse detection device according to claim 1, characterized in that, The frame has a plurality of mounting positions spaced apart along the second straight line; the number of mounting positions is greater than or equal to the number of cameras; the plurality of cameras are respectively mounted one-to-one on the plurality of consecutive mounting positions.

3. The fireworks fuse detection device according to claim 1, characterized in that, It also includes a guide structure and a slider structure; the guide structure is mounted on the mounting bracket; the slider structure is slidably mounted on the guide structure; and the translation seat is mounted on the slider structure.

4. The fireworks fuse detection device according to claim 3, characterized in that, The guide structure includes a guide rail and limiting mounting members fixed to both ends of the guide rail; the guide rail is mounted on the mounting bracket; the slider structure is slidably mounted on the guide rail; the two limiting mounting members are configured to contact the slider structure to limit the extreme positions of the slider structure's sliding.

5. The fireworks fuse detection device according to claim 3, characterized in that, The guide structure includes a guide rail mounted on the mounting frame, a guide plate, and U-shaped fasteners at both ends of the guide plate; guide ridges are provided on both sides of the guide rail; the two ends of the guide plate are detachably mounted on the side of the guide rail away from the mounting frame by two U-shaped fasteners, and are parallel to the extension direction of the guide rail. The slider structure has an inner groove on the side facing the mounting bracket; both side walls of the inner groove have clamping grooves that match the guide protrusion; the bottom wall of the inner groove has a hanging hole. At least a portion of the guide rail is located within the inner groove, and the two guide protrusions respectively engage with the two clamping grooves, and the guide plate is slidably inserted into the hanging hole.

6. The fireworks fuse detection device according to claim 5, characterized in that, The slider structure includes a slider body; the slider body has an inner groove formed on the side facing the mounting bracket; a clamping slider is provided on both side walls of the inner groove; the clamping slider has a clamping groove on the side facing the center line of the inner groove; an installation groove is formed on the bottom wall of the inner groove; a suspension block is detachably installed in the installation groove; the portion of the suspension block protruding from the bottom wall of the inner groove has a hanging hole.

7. The fireworks fuse detection device according to claim 4 or 5, characterized in that, The guide structure further includes a guide rail base; the guide rail is detachably mounted on the guide rail base; the guide rail base is detachably mounted on the mounting bracket.

8. The fireworks fuse detection device according to claim 7, characterized in that, The mounting frame includes a fixed frame, a support frame, and a reinforcing rod; the fixed frame is used to fix it to the wall inside the workshop; one end of the support frame is detachably mounted on the fixed frame; the support frame has a plurality of first mounting points spaced apart along the second straight line direction; the guide rail seat can be selectively and detachably connected to one of the plurality of first mounting points; both ends of the reinforcing rod are respectively connected to the fixed frame and the support frame, and are located on the side of the support frame away from the image acquisition component.

9. The fireworks fuse detection device according to claim 8, characterized in that, The fixing frame includes two fixing rods that are parallel and spaced apart along the first straight line direction; the support frame includes two mounting rods that are parallel and spaced apart along the first straight line direction and a connecting rod connecting the two mounting rods; each mounting rod has a plurality of first mounting points that are spaced apart along the second straight line direction; both ends of the guide rail seat are respectively detachably connected to one of the first mounting points on the two mounting rods; all the first mounting points are located between the fixing rods and the connecting rod.

10. The fireworks fuse detection device according to claim 8, characterized in that, The fixing frame has multiple second mounting points and multiple third mounting points; the multiple second mounting points and the multiple third mounting points are all spaced apart along a third straight line direction that is perpendicular to the first straight line direction and the second straight line direction respectively; the support frame has multiple fourth mounting points spaced apart along the second straight line direction. One end of the support frame can be detachably connected to one of the second mounting points; one end of the reinforcing rod can be detachably connected to one of the third mounting points, and the other end can be detachably connected to one of the fourth mounting points.

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