Positioning device for air conditioning compressor

Abstract

The application discloses a positioning device of an air conditioner compressor and relates to the technical field of air conditioner compressor installation. The positioning device of the air conditioner compressor comprises a supporting structure, a translation structure and a lifting structure. The supporting structure comprises a supporting table and two supporting pieces. The top of the supporting table is provided with the two supporting pieces at intervals along a first horizontal direction. The top end of the other supporting piece is concave downward and is provided with a plurality of grooves extending along the first horizontal direction. The top end of the other supporting piece is convex upward and is provided with a plurality of bosses. The bosses are used for inserting the air conditioner compressor body. The translation structure is used for driving the supporting structure to move along the horizontal direction. The lifting structure is used for changing the height of the supporting structure. The air conditioner compressor can be stably adjusted in the same state to adjust the installation position, and the translation structure and the lifting structure are matched to complete the adjustment work of the air conditioner compressor position.

Description

Technical Field

[0001] This invention relates to the technical field of positioning devices for air conditioner compressors, and particularly to a positioning device for an air conditioner compressor. Background Technology

[0002] The air conditioning compressor is an indispensable component of an air conditioner. The installation location of the air conditioning compressor varies depending on the usage scenario. In automobiles, the air conditioning compressor is usually installed on the side of the front suspension subframe. Therefore, the air conditioning compressor needs to be moved into the air for positioning and installation. In most cases, a hoist is used to suspend the air conditioning compressor in the air to assist the workers in the installation.

[0003] When using a hoist to move the air conditioner compressor toward the installation location, the compressor will sway continuously because it is not parallel and unrestricted. Therefore, workers need to support the compressor until it is in the preset installation position before other workers complete the installation. The entire process requires at least three workers to cooperate, which consumes a lot of manpower and resources, significantly increases installation costs, reduces installation efficiency, and makes it difficult to accurately align the compressor, resulting in the compressor not being installed properly, which in turn affects work efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a positioning device for an air conditioner compressor, which aims to improve the convenience of using the positioning device, reduce the consumption of manpower and material resources, and thus reduce installation costs.

[0005] To achieve the above objectives, the present invention provides a positioning device for an air conditioner compressor, comprising:

[0006] The support structure includes a support platform and two support members. The top of the support platform is provided with two support members spaced apart along a first horizontal direction. One of the support members has an arc-shaped top surface for placing the motor of the air conditioner compressor. The top surface of the other support member is recessed downward and provided with multiple grooves extending along the first horizontal direction. The grooves are used to accommodate the air conditioner compressor body and restrict the movement of the air conditioner compressor along a second horizontal direction. The top surface of the other support member is provided with multiple protrusions upward and provided with protrusions for inserting into the air conditioner compressor body and restricting the movement of the air conditioner compressor along the first horizontal direction.

[0007] A translation structure for moving the supporting structure horizontally; and,

[0008] A lifting structure is used to change the height of the supporting structure.

[0009] Preferably, the cavity wall of the groove is provided with an anti-slip part, and the anti-slip part is in contact with the air conditioner compressor body to restrict the sliding of the air conditioner compressor body, and the support member is detachably installed on the support platform.

[0010] Preferably, the bottom of the support platform is rotatably connected to an optical axis, which is used to adjust the horizontal angle of the support structure, and a first support plate is provided between the optical axis and the translation structure.

[0011] Preferably, the translation structure includes:

[0012] The second guide rail extends along the second horizontal direction;

[0013] The second slider is movably mounted on the second guide rail and is used to drive the support structure to move along the second horizontal direction;

[0014] The first guide rail is mounted on the top of the second slider and extends along the first horizontal direction;

[0015] The first slider is movably mounted on the first guide rail and located at the bottom of the first support plate, so as to drive the support structure to move along the first horizontal direction.

[0016] Preferably, a second support plate is provided between the translation structure and the lifting structure.

[0017] Preferably, the lifting structure includes:

[0018] A fixing rod is installed at the bottom of the second support plate, and a movable hole is opened at the bottom of the fixing rod, which extends along the axial direction of the fixing rod.

[0019] The movable rod is slidably disposed within the movable hole, and the outer circumference of the movable rod is provided with threads;

[0020] A positioning nut is threadedly connected to the movable rod and abuts against the bottom end of the fixed rod to restrict the position of the fixed rod.

[0021] Preferably, the movable rod is threaded with the limiting nut, and the limiting nut abuts against the bottom end of the positioning nut.

[0022] Preferably, the end of the movable rod away from the second support plate is provided with a caster wheel.

[0023] Preferably, the caster wheel is provided with a locking component, which abuts against the ground to restrict the movement of the caster wheel.

[0024] Preferably, the locking component includes:

[0025] A fixing member is provided at the bottom end of the movable rod, and the fixing member has a threaded hole that extends toward the second support plate;

[0026] A locking screw, one end of which passes through the fixing member to abut against the ground, and the locking screw is threadedly connected to the fixing member.

[0027] In the technical solution provided by this invention, the supporting structure includes a supporting platform and two supporting members. Two supporting members are spaced apart at the top of the supporting platform along a first horizontal direction. One of the supporting members has an arc-shaped top surface for placing the motor of the air conditioner compressor. The other supporting member has a plurality of recessed grooves extending along the first horizontal direction at its top surface, which are used to accommodate the air conditioner compressor body and restrict the movement of the air conditioner compressor along a second horizontal direction. The other supporting member also has a plurality of protruding bosses at its top surface, which are used to insert into the air conditioner compressor body and restrict the movement of the air conditioner compressor along the first horizontal direction. A translational structure is used to drive the supporting structure to move horizontally, and a lifting structure is used to change the height of the supporting structure. The two supporting members on the supporting structure allow the air conditioner compressor to be stably adjusted in the same state during installation position adjustment, and the translational and lifting structures work together to complete the adjustment of the air conditioner compressor's position. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A perspective view of an embodiment of the positioning device for an air conditioner compressor provided by the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the translation structure;

[0031] Figure 3 for Figure 1 A schematic diagram of the lifting structure.

[0032] Explanation of icon numbers:

[0033] 100. Positioning device; 1. Support structure; 2. Optical axis; 3. First support plate; 4. Translation structure; 41. Second slider; 42. Second guide rail; 43. First slider; 44. First guide rail; 5. Lifting structure; 51. Fixed rod; 52. Positioning nut; 53. Limiting nut; 54. Movable rod; 6. Universal wheel; 7. Locking assembly; 71. Locking screw; 72. Fixing component.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "third," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "third" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] This invention provides a positioning device 100 for an air conditioner compressor. Figures 1 to 3 This is an embodiment of the positioning device 100 for an air conditioner compressor provided by the present invention.

[0039] Please refer to the following: Figures 1 to 3The positioning device 100 for the air conditioner compressor includes a support structure 1, a translation structure 4, and a lifting structure 5. The support structure 1 includes a support platform and two support members. The top of the support platform is provided with two support members spaced apart along a first horizontal direction. One of the support members has an arc-shaped top surface for placing the motor of the air conditioner compressor. The top surface of the other support member is recessed downward and has multiple grooves extending along the first horizontal direction. The grooves are used to accommodate the air conditioner compressor body and restrict the movement of the air conditioner compressor along a second horizontal direction. The top surface of the other support member is convex upward and has multiple bosses for inserting into the air conditioner compressor body and restricting the movement of the air conditioner compressor along the first horizontal direction. The translation structure 4 is used to drive the support structure 1 to move along the horizontal direction. The lifting structure 5 is used to change the height of the support structure 1.

[0040] When installing the air conditioner compressor, first place the compressor on support structure 1, place the motor on one of the support members with an arc-shaped surface, and place the compressor body on another support member. When placing the compressor body, align the groove on the compressor body with the protrusion, and try to align the groove near the protrusion with the protruding part on the compressor body to complete the initial positioning of the compressor. Then, adjust the horizontal position of the compressor using the translation structure 4, and then adjust the height of the compressor using the lifting structure 5. With the cooperation of the translation structure 4 and the lifting structure 5, the compressor is gradually moved to the preset installation position. Finally, use the appropriate tools to complete the installation and fixing of the compressor.

[0041] The function of the translation structure 4 is to drive the air conditioning compressor to move in the horizontal direction. There are many structures that can achieve this function, such as the ball screw and nut pair structure: the ball screw is used as the transmission element, the nut is connected to the support structure 1, the motor drives the ball screw to rotate, the nut moves axially on the screw, and thus drives the support structure 1 to translate. It has the advantages of high transmission efficiency, high positioning accuracy, and large load-bearing capacity, and is suitable for occasions with high requirements for translation accuracy and load.

[0042] The function of the lifting structure 5 is to adjust the height of the air conditioning compressor. There are many structures that can achieve this function, such as the hydraulic lifting structure 5, which is mainly composed of a hydraulic pump station, a hydraulic cylinder, and a control valve. The hydraulic pump station pressurizes the hydraulic oil and delivers it to the hydraulic cylinder, which pushes the piston to move up and down, thereby driving the support structure 1 to lift. It has the advantages of large load-bearing capacity, fast lifting speed, and stable operation, but it requires a hydraulic system and has a relatively high cost. It is often used for lifting large equipment.

[0043] Therefore, in the technical solution provided by the present invention, the support structure 1 includes a support platform and two support members. The top of the support platform is provided with two support members spaced apart along the first horizontal direction. One of the support members has an arc-shaped surface on its top surface for placing the motor of the air conditioner compressor. The top surface of the other support member is recessed downward and provided with multiple grooves extending along the first horizontal direction. The grooves are used to accommodate the air conditioner compressor body and restrict the movement of the air conditioner compressor along the second horizontal direction. The top surface of the other support member is provided with multiple protrusions upward and provided with protrusions for inserting into the air conditioner compressor body and restricting the movement of the air conditioner compressor along the first horizontal direction. The translation structure 4 is used to drive the support structure 1 to move along the horizontal direction. The lifting structure 5 is used to change the height of the support structure 1. Through the two support members on the support structure 1, the air conditioner compressor can be stably adjusted in the same state during the adjustment of the installation position. The translation structure 4 and the lifting structure 5 are used to complete the adjustment of the position of the air conditioner compressor.

[0044] Some air conditioner compressors have only raised parts on their bodies that are placed in grooves, without recessed areas. When the grooves have openings on two opposite sides in the same direction, the compressor body may slide out of the grooves along the openings and detach from the support. Therefore, certain restrictions are necessary. Specifically, in the embodiments of the present invention, the cavity wall of the groove is provided with an anti-slip part, and the anti-slip part is in contact with the air conditioner compressor body to restrict the sliding of the air conditioner compressor body. The support is detachably installed on the support platform.

[0045] By creating anti-slip parts on the inner wall of the groove, the protruding parts of the unit are less likely to slide after being placed in the groove, thus reducing the possibility of the unit detaching from the support. At the same time, the support is designed to be detachable and replaceable, making it convenient for staff to replace the support with a suitable one according to the different shapes of the air conditioner compressor casing. This avoids the air conditioner compressor being unable to be stably placed on the support for installation adjustment due to incompatibility.

[0046] Furthermore, the bottom of the support platform is rotatably connected to an optical axis 2, which is used to adjust the horizontal angle of the support structure 1. A first support plate 3 is provided between the optical axis 2 and the translation structure 4.

[0047] After the air conditioner compressor is placed on the support structure 1, it is necessary to adjust not only its horizontal position but also its horizontal angle to match the tilt angle of the installation position. Therefore, an optical axis 2 is provided to facilitate the rotation of the support platform to adjust the horizontal angle of the air conditioner compressor. At the same time, the optical axis 2 is connected to the translation structure 4 through the first support plate 3, which avoids the translation structure 4 being composed of multiple tracks and also makes the support structure 1 more stable in the horizontal direction.

[0048] When installing an air conditioner compressor, not every location has convenient access to electricity. To ensure that the positioning device 100 can be used for different lengths and is designed to operate without electricity, specifically, in an embodiment of the present invention, the translation structure 4 includes a second guide rail 42, a second slider 41, a first guide rail 44, and a first slider 43. The second guide rail 42 extends along a second horizontal direction, and the second slider 41 is movably mounted on the second guide rail 42 to drive the support structure 1 to move along the second horizontal direction. The first guide rail 44 is mounted on the top of the second slider 41 and extends along a first horizontal direction. The first slider 43 is movably mounted on the first guide rail 44 and is located at the bottom of the first support plate 3 to drive the support structure 1 to move along the first horizontal direction.

[0049] The guide rail and slider are a mature motion guiding mechanism with high precision and stability. The second slider 41 moves on the second guide rail 42, and the first slider 43 moves on the first guide rail 44. The guide rail can provide precise guidance for the movement of the slider, reducing offset and swaying during the movement. When adjusting the position of the support structure 1, this structure can ensure that the support structure 1 moves smoothly, avoiding the impact of swaying or offset on the positioning accuracy of the air conditioner compressor. For example, when placing the air conditioner compressor on the support structure 1, the smooth movement of the support structure 1 can ensure a more accurate fit between the air conditioner compressor and the support, reducing installation errors. Furthermore, the first guide rail 44 is installed on top of the second slider 41. This layered design makes the movement in the first horizontal direction and the second horizontal direction independent of each other. Adjusting the position in one direction will not affect the positioning in the other direction, improving the overall positioning accuracy. For example, when it is necessary to adjust the position of the support structure 1 in the first horizontal direction alone, it is only necessary to control the first slider 43 to move on the first guide rail 44, while the position in the second horizontal direction remains unchanged, which is convenient to operate and can be precisely controlled.

[0050] Furthermore, a second support plate is provided between the translation structure 4 and the lifting structure 5.

[0051] To ensure stability when adjusting the height, multiple lifting structures 5 are designed and arranged symmetrically. However, having multiple lifting structures 5 concentrated on one guide rail is too crowded and inconvenient to operate. Therefore, a second support plate is set between the lifting structure 5 and the translation structure 4 to facilitate the installation of multiple lifting structures 5 while also making operation easier.

[0052] In an embodiment of the present invention, the lifting structure 5 includes a fixed rod 51, a movable rod 54, and a positioning nut 52. The fixed rod 51 is installed at the bottom of the second support plate. A movable hole is formed at the bottom of the fixed rod 51. The movable hole extends along the axial direction of the fixed rod 51. The movable rod 54 is slidably disposed in the movable hole, and a thread is provided on the outer periphery of the movable rod 54. The positioning nut 52 is threadedly connected to the movable rod 54 and abuts against the bottom end of the fixed rod 51 to limit the position of the fixed rod 51.

[0053] The height adjustment function of the lifting structure 5 works in conjunction with the translation structure 4 and the optical axis 2, enabling the entire positioning device 100 to accurately position and install the air conditioner compressor in three-dimensional space. For example, before placing the air conditioner compressor on the support structure 1, the lifting structure 5 is used to adjust the support structure 1 to a suitable height, the translation structure 4 is used to make horizontal adjustments, and finally the positioning components of the support structure 1 are used to complete the positioning of the air conditioner compressor.

[0054] The lifting structure 5 mainly consists of a fixed rod 51, a movable rod 54, and a positioning nut 52. Compared to some complex lifting mechanisms such as hydraulic lifting systems, it has fewer components and a simpler structure, making manufacturing and installation relatively easy, reducing production costs and installation difficulty. For example, in the manufacturing process, the fixed rod 51 and movable rod 54 can be manufactured using simple machining processes, and the positioning nut 52 is a common standard part, easy to procure and install. Due to its simple structure, if a malfunction occurs during use, maintenance personnel can quickly locate the problem and perform repairs.

[0055] The outer periphery of the movable rod 54 is threaded. The positioning nut 52 is threadedly connected to the movable rod 54 and abuts against the bottom end of the fixed rod 51. After the height of the support structure 1 is adjusted, the positioning nut 52 is tightened. The threaded engagement between the positioning nut 52 and the movable rod 54 will generate a certain friction force, thereby limiting the sliding of the movable rod 54 in the movable hole and playing a self-locking role. This allows the support structure 1 to maintain a stable height during operation and will not fall unexpectedly due to the weight of the air conditioner compressor or other external forces, thus improving the safety and stability of the positioning device 100.

[0056] Furthermore, the movable rod 54 is threadedly connected to the limiting nut 53, and the limiting nut 53 abuts against the bottom end of the positioning nut 52. During use, it is inevitable that the entire positioning device 100 will need to be moved. This movement will cause all components to vibrate, and the positioning nut 52 may loosen after vibration, leading to instability and height changes in the lifting structure 5. Therefore, the positioning nut 52 needs to provide some restriction. The limiting nut 53 is threadedly connected to the movable rod 54 and located on the bottom side of the positioning nut 52. When the positioning nut 52 rotates to fit against the bottom of the fixed rod 51, the limiting nut 53 rotates again to the bottom of the positioning nut 52. This ensures that the limiting nut 53 moves before the positioning nut 52 moves, thereby restricting the movement of the positioning nut 52 and ensuring the stability of the lifting structure 5.

[0057] The air conditioner compressor can be adjusted horizontally within a small range using the translation structure 4. However, when a large range of horizontal adjustment is required, a larger guide rail structure is needed, which can easily lead to an overly large device and high manufacturing costs. Therefore, a new structure needs to be designed to allow the positioning device 100 to move over a wide range. Specifically, in the embodiment of the present invention, a caster wheel 6 is provided at the end of the movable rod 54 away from the second support plate. The caster wheel 6 allows the entire positioning device 100 to move to any position in the horizontal direction, enabling the positioning device 100 to be moved as needed in a large area, facilitating subsequent storage. Simultaneously, in conjunction with the translation structure 4, the horizontal position of the air conditioner compressor is adjusted. The caster wheel 6 roughly moves the air conditioner compressor to a suitable area, and the translation structure 4 precisely adjusts the horizontal position of the air conditioner compressor, thereby improving installation efficiency while saving costs. Furthermore, the positioning device 100 does not need to be designed to be excessively large, facilitating subsequent storage and transportation.

[0058] Furthermore, a locking component 7 is provided on the caster wheel 6, which abuts against the ground to restrict the movement of the caster wheel 6. After the caster wheel 6 has moved to a suitable area, it is necessary to restrict the caster wheel 6 so that the positioning device 100 will not continue to move significantly with the caster wheel 6. Therefore, the locking component 7, which can abut against the ground, locks the caster wheel 6, so that the positioning device 100 cannot move after moving to a suitable position, and can only adjust the position of the air conditioner compressor through the translation structure 4.

[0059] Specifically, in an embodiment of the present invention, the locking component 7 includes a fixing member 72 and a locking screw 71. The fixing member 72 is disposed at the bottom end of the movable rod 54, and a threaded hole is provided on the fixing member 72, and the threaded hole extends toward the second support plate. One end of the locking screw 71 passes through the fixing member 72 to abut against the ground, and the locking screw 71 is threadedly connected to the fixing member 72.

[0060] When locking the position of the caster wheel 6, rotate the locking screw 71. During the rotation, one end of the locking screw 71 gradually approaches the ground until it is in contact with the ground, thus completing the work of abutting against the ground. Once the locking screw 71 on each caster wheel 6 is rotated to abut against the ground, the initial locking work is completed. If the locking is not stable enough at this time, the locking screw 71 can be rotated further to lift the caster wheel 6 off the ground, so that the caster wheel 6 completely loses its ability to move, thereby preventing the positioning device 100 from moving.

[0061] The locking assembly 7 consists of a fixing part 72 and a locking screw 71. The structure is not complicated and is easy to manufacture. The fixing part 72 is located at the bottom of the movable rod 54 and engages with the locking screw 71 through a threaded hole. The installation process is relatively simple and does not require complicated tools and processes, which reduces production and maintenance costs. Furthermore, since the locking screw 71 and the fixing part 72 are threadedly connected, the extension length of the locking screw 71 can be easily adjusted by rotating it according to the ground conditions and actual needs to adapt to different ground flatness and height requirements, ensuring the holding effect and improving the versatility and adaptability of the locking assembly 7.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A positioning device for an air conditioner compressor, characterized in that, include: The support structure includes a support platform and two support members. The top of the support platform is provided with two support members spaced apart along a first horizontal direction. One of the support members has an arc-shaped top surface for placing the motor of the air conditioner compressor. The top surface of the other support member is recessed downward and provided with multiple grooves extending along the first horizontal direction. The grooves are used to accommodate the air conditioner compressor body and restrict the movement of the air conditioner compressor along a second horizontal direction. The top surface of the other support member is provided with multiple protrusions upward and provided with protrusions for inserting into the air conditioner compressor body and restricting the movement of the air conditioner compressor along the first horizontal direction. A translation structure for moving the supporting structure horizontally; and, A lifting structure is used to change the height of the supporting structure; The support component is detachably installed on the support platform, which facilitates the staff to replace the support component with a suitable one according to the different shapes of the air conditioner compressor shell. The bottom of the support platform is rotatably connected to an optical axis, which is used to adjust the horizontal angle of the support structure. A first support plate is provided between the optical axis and the translation structure.

2. The positioning device for an air conditioning compressor as described in claim 1, characterized in that, The groove has an anti-slip part on its cavity wall, and the anti-slip part fits in contact with the air conditioner compressor body to restrict the air conditioner compressor body from sliding.

3. The positioning device for an air conditioning compressor as described in claim 1, characterized in that, The translation structure includes: The second guide rail extends along the second horizontal direction; The second slider is movably mounted on the second guide rail and is used to drive the support structure to move along the second horizontal direction; The first guide rail is mounted on the top of the second slider and extends along the first horizontal direction; The first slider is movably mounted on the first guide rail and located at the bottom of the first support plate, so as to drive the support structure to move along the first horizontal direction.

4. The positioning device for an air conditioning compressor as described in claim 1, characterized in that, A second support plate is provided between the translation structure and the lifting structure.

5. The positioning device for an air conditioning compressor as described in claim 4, characterized in that, The lifting structure includes: A fixing rod is installed at the bottom of the second support plate, and a movable hole is opened at the bottom of the fixing rod, which extends along the axial direction of the fixing rod. The movable rod is slidably disposed within the movable hole, and the outer circumference of the movable rod is provided with threads; A positioning nut is threadedly connected to the movable rod and abuts against the bottom end of the fixed rod to restrict the position of the fixed rod.

6. The positioning device for an air conditioning compressor as described in claim 5, characterized in that, A limit nut is threaded onto the movable rod, and the limit nut abuts against the bottom end of the positioning nut.

7. The positioning device for an air conditioning compressor as described in claim 5, characterized in that, The end of the movable rod away from the second support plate is equipped with a caster wheel.

8. The positioning device for an air conditioning compressor as described in claim 7, characterized in that, The omnidirectional wheel is equipped with a locking component, which abuts against the ground to restrict the movement of the omnidirectional wheel.

9. The positioning device for an air conditioning compressor as described in claim 8, characterized in that, The locking component includes: A fixing member is provided at the bottom end of the movable rod, and the fixing member has a threaded hole that extends toward the second support plate; A locking screw, one end of which passes through the fixing member to abut against the ground, and the locking screw is threadedly connected to the fixing member.

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