Road detection sampling device

Abstract

The invention relates to the technical field of road detection, in particular to a road detection sampling device which comprises a support and a sampling assembly, the sampling assembly comprises a fixing part, a plurality of first independent parts and a plurality of second independent parts are slidably arranged at the bottom of the fixing part, and a feedback part is slidably arranged at the top of the fixing part. The feedback piece is connected with the multiple first independent pieces and the multiple second independent pieces in a matched mode through transmission assemblies. The soil core column has the beneficial effects that the multiple first independent parts and the multiple second independent parts get close to each other, air in the core column is exhausted, the possibility that the soil core column is broken or falls off due to looseness in the taking-out process is reduced, the integrity of the soil core column is greatly improved, the multiple first independent parts and the multiple second independent parts are far away from each other, and therefore the soil core column can be taken out conveniently. The soil core column can be easily and completely taken out of the sampling assembly, air is prevented from entering the sampling assembly, damage to the soil structure is avoided, and the soil core column and the coring cylinder do not need to be separated through an additional tool or complex operation.

Description

Technical Field

[0001] The invention relates to the technical field of road detection, in particular to a road detection sampling device. Background Art

[0002] As the infrastructure of transportation, the quality of roads is directly related to traffic safety and smoothness. Road inspection and sampling is an important part of evaluating the quality of road projects and formulating maintenance plans. The road inspection sampling device is a device for sampling and testing geological soil before road construction. By testing the soil on the road, we can know whether it meets the construction requirements, thereby reducing subsequent construction losses.

[0003] A soil detection sampling device is disclosed in Chinese patent publication number CN116990072B. The soil detection sampling device drills into the soil through a sampling tube, and then controls the sampling tube to separate from the soil to obtain a sample core, which can then be tested.

[0004] However, compared with the existing technologies in the related fields, firstly, when the existing sampling devices are used to remove the soil core column, the soil core column is easily loosened, broken or dropped due to the friction between the soil core column and the inner wall of the coring tube; secondly, when the existing sampling devices are used to remove the soil core column, additional tools or complicated operations are often required to separate the soil core column and the coring tube, which not only increases the sampling time and labor costs, but also increases the difficulty of operation. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a road detection sampling device.

[0006] The objective of the present invention is achieved through the following technical solutions: a road detection sampling device, comprising a bracket and a sampling component, the bracket is provided with a driving component for controlling the rotation of the sampling component, and the bracket is provided with an adjusting component for controlling the longitudinal sliding of the driving component and the sampling component; the sampling component comprises a fixing member, a plurality of first independent parts and a plurality of second independent parts are slidably provided at the bottom of the fixing member, the plurality of first independent parts and the plurality of second independent parts are alternately arranged along the circumference of the fixing member to enclose a circle to form a cylindrical structure, and the plurality of first independent parts and the plurality of second independent parts are all connected by a sealing structure; a feedback member is slidably provided at the top of the fixing member, and the feedback member and the plurality of first independent parts and the plurality of second independent parts are all connected by a transmission member, when the feedback member slides upward, the plurality of transmission members make the plurality of first independent parts and the plurality of second independent parts approach each other, and when the feedback member slides downward, the plurality of transmission members make the plurality of first independent parts and the plurality of second independent parts move away from each other.

[0007] Furthermore, the plurality of first independent parts and the plurality of second independent parts are all arc-shaped.

[0008] Furthermore, the sealing structure includes docking grooves provided on both sides of the first independent component, and docking components are fixedly provided at positions of the second independent component corresponding to the docking grooves.

[0009] Furthermore, the docking piece is made of memory metal. When the multiple first independent parts and the multiple second independent parts are close to each other, the docking piece will be inserted into the docking groove. When the multiple transmission components make the multiple first independent parts and the multiple second independent parts move away from each other, the docking piece will slide out from the docking groove, thereby using the docking piece to cover the gaps between the multiple first independent parts and the multiple second independent parts.

[0010] Furthermore, sliding blocks are fixedly provided on the tops of the plurality of first independent parts and the plurality of second independent parts, and sliding grooves are provided at positions of the fixing parts corresponding to the plurality of sliding blocks.

[0011] Furthermore, the cross-section of the slider is T-shaped, and the transmission assembly includes a gear rotatably arranged on the top of the fixed part. The slider is located below the gear and is fixedly provided with a first rack meshing with the gear. The first rack is laterally slidably matched with the fixed part. A second rack is meshed with the gear near the center of the fixed part. The second rack is longitudinally slidably matched with the fixed part. A cavity is opened at the center of the feedback part, and the second rack is fixedly installed inside the cavity of the feedback part.

[0012] Furthermore, movable grooves are provided at positions of the fixing member corresponding to the gear, the first rack and the second rack, and an inclined surface is formed at one end of the first rack away from the sliding block.

[0013] Furthermore, the fixing member is provided with rotation holes at both ends of the gear, and both ends of the gear are connected to the rotation holes through bearings.

[0014] Furthermore, the driving assembly includes a first motor, the output end of the first motor is fixedly mounted with a driving shaft via a coupling, the driving shaft is fixedly mounted at the center of the top of the fixing member, and a movable hole is opened at the position of the feedback member corresponding to the driving shaft.

[0015] Furthermore, the adjustment component includes a slide rail fixedly mounted on the bracket, a second motor is fixedly mounted on the top of the slide rail, an output end of the second motor passes through the slide rail and a lead screw is fixedly mounted inside the slide rail, a moving part is threadedly connected to the outer surface of the lead screw, the moving part slides in cooperation with the slide rail, and the first motor is fixedly mounted on the moving part.

[0016] The beneficial effects of the present invention are as follows: by arranging a sampling component, a feedback component and a transmission component, after the sampling component is completely drilled into the soil, the feedback component and the transmission component allow the multiple first independent components and the multiple second independent components to approach each other and discharge the internal air, which makes the soil core column more compact in the sampling component and reduces the possibility of the soil core column being broken or falling due to loosening during the removal process, thereby greatly improving the integrity of the soil core column, achieving a good coring effect, and being able to meet the sampling requirements under different soil conditions. When the sampling component is separated from the soil, the feedback component and the transmission component allow the multiple first independent components and the multiple second independent components to move away from each other. This design cleverly solves the friction problem between the soil core column and the inner wall of the sampling component, so that the soil core column can be easily and completely removed from the sampling component without using additional tools or complicated operations to forcibly separate the soil core column and the sampling component, greatly saving sampling time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the first working state of the adjustment component of the present invention; Figure 2 It is a structural schematic diagram of the second working state of the adjustment component of the present invention; Figure 3 It is a first axial side schematic diagram of the present invention when a plurality of first independent components and a plurality of second independent components are away from each other; Figure 4 It is a second axial side schematic diagram of the present invention when a plurality of first independent components and a plurality of second independent components are away from each other; Figure 5 It is a first axial side schematic diagram of a plurality of first independent parts and a plurality of second independent parts approaching each other according to the present invention; Figure 6 It is a second axial side schematic diagram of the present invention when a plurality of first independent parts and a plurality of second independent parts are close to each other; Figure 7 It is a schematic diagram of the structure of the first independent component and the second independent component of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement at the center A; Fig. 9 It is a schematic diagram of the state when the feedback member of the present invention slides downward; Fig.10 For the present invention Fig. 9 A schematic diagram of the structure enlarged at B in the middle; Fig.11 It is a schematic diagram of the state when the feedback member of the present invention slides upward; Fig.12 For the present invention Fig.11 Enlarged schematic diagram of the structure at C in the middle.

[0019] In the figure: 1. bracket; 101. support rod; 2. sampling component; 201. fixing part; 2011. slider; 2012. slide groove; 202. first independent part; 203. second independent part; 3. driving component; 301. first motor; 302. coupling; 303. driving shaft; 4. adjusting component; 401. slide rail; 402. second motor; 403. screw rod; 404. moving part; 5. sealing structure; 501. docking groove; 502. docking part; 6. feedback part; 7. transmission component; 701. gear; 702. first rack; 703. second rack. DETAILED DESCRIPTION

[0020] 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.

[0021] Additional aspects and advantages of the present invention will be further given in the following description in conjunction with the accompanying drawings, and in part will become apparent from the following description, or may be learned through practice of the present invention.

[0022] An embodiment of a road detection sampling device of the present invention is as follows Figures 1 to 12As shown, it includes a bracket 1 and a sampling component 2, the bracket 1 is provided with a driving component 3 for controlling the rotation of the sampling component 2, and the bracket 1 is provided with an adjusting component 4 for controlling the longitudinal sliding of the driving component 3 and the sampling component 2; the sampling component 2 includes a fixing member 201, and the bottom of the fixing member 201 is slidably provided with a plurality of first independent members 202 and a plurality of second independent members 203, and the plurality of first independent members 202 and the plurality of second independent members 203 are all arc-shaped, and are alternately arranged along the circumference of the fixing member 201 to enclose a circle to form a circle. The plurality of first independent parts 202 and the plurality of second independent parts 203 are connected with each other through a sealing structure 5; a feedback part 6 is slidably provided on the top of the fixing part 201, and the feedback part 6 and the plurality of first independent parts 202 and the plurality of second independent parts 203 are connected with each other through a transmission component 7. When the feedback part 6 slides upward, the plurality of transmission components 7 make the plurality of first independent parts 202 and the plurality of second independent parts 203 approach each other; when the feedback part 6 slides downward, the plurality of transmission components 7 make the plurality of first independent parts 202 and the plurality of second independent parts 203 move away from each other.

[0023] like Figures 1 to 3 As shown, the driving component 3 includes a first motor 301, and the output end of the first motor 301 is fixedly installed with a driving shaft 303 through a coupling 302. The driving shaft 303 is fixedly installed at the center of the top of the fixing member 201, and a movable hole is opened at the position of the feedback member 6 corresponding to the driving shaft 303; the adjusting component 4 includes a slide rail 401 fixedly installed on the bracket 1, and a second motor 402 is fixedly installed on the top of the slide rail 401. The output end of the second motor 402 passes through the slide rail 401 and is fixedly installed with a lead screw 403 inside the slide rail 401. The outer surface of the lead screw 403 is threadedly connected with a moving member 404, and the moving member 404 is slidably matched with the slide rail 401, and the first motor 301 is fixedly installed on the moving member 404; a support rod 101 for causing the feedback member 6 to slide downward is fixedly provided at the bottom of the bracket 1. When the adjusting component 4 controls the driving component 3, the sampling component 2 and the feedback member 6 to move to the top, the support rod 101 will press the feedback member 6, thereby causing the feedback member 6 to slide downward.

[0024] In summary: Figures 1 to 3As shown, when sampling, the bracket 1 is placed at a designated point, and then the first motor 301 controls the driving shaft 303 and the sampling component 2 to rotate through the coupling 302. When the sampling component 2 rotates, the second motor 402 controls the screw rod 403 to rotate, and then the moving part 404 is threadedly connected to the screw rod 403, so that the moving part 404 controls the driving component 3, the sampling component 2 and the feedback component 6 to move downward, so that the sampling component 2 drills into the soil in a rotating state. After the sampling is completed, the screw rod 403 is controlled to rotate in the opposite direction by the second motor 402, and then the moving part 404 is threadedly connected to the screw rod 403, so that the moving part 404 controls the driving component 3, the sampling component 2 and the feedback component 6 to move upward, so that the sampling component 2 is separated from the soil. At this time, the contraction of the multiple first independent parts 202 and the multiple second independent parts 203 can prevent the multiple first independent parts 202 and the multiple second independent parts 203 from touching the hole wall when moving in the hole.

[0025] like Figures 3 to 6 As shown, the sealing structure 5 includes docking grooves 501 opened on both sides of the first independent part 202, and docking parts 502 are fixedly provided at the positions of the second independent part 203 corresponding to the docking grooves 501; the docking parts 502 are made of memory metal, and when the multiple first independent parts 202 and the multiple second independent parts 203 are close to each other, the docking parts 502 will be inserted into the docking grooves 501, and when the multiple transmission components 7 make the multiple first independent parts 202 and the multiple second independent parts 203 move away from each other, the docking parts 502 will slide out from the docking grooves 501, so that the docking parts 502 are used to cover the gaps between the multiple first independent parts 202 and the multiple second independent parts 203.

[0026] like Fig.10 and Fig.12As shown, a slider 2011 is fixedly disposed on the top of each of the plurality of first independent members 202 and the plurality of second independent members 203, and a slide groove 2012 is provided at the position of the fixed member 201 corresponding to the plurality of sliders 2011, and the cross section of the slider 2011 is T-shaped. The cooperation between the slider 2011 and the slide groove 2012 can improve the stability of the plurality of first independent members 202 and the plurality of second independent members 203 when they are close to or away from each other, and the transmission assembly 7 includes a gear 701 rotatably disposed on the top of the fixed member 201, and the slider 2011 is located below the gear 701 and is fixedly disposed with a first rack 702 meshing therewith, and the first rack 702 is laterally slidably matched with the fixed member 201, and a second rack 703 is meshed with the gear 701 near the center of the fixed member 201, The second rack 703 is longitudinally slidably matched with the fixing member 201, and a cavity is provided at the center of the feedback member 6. The second rack 703 is fixedly installed inside the cavity of the feedback member 6. The fixing member 201 is provided with movable grooves at positions corresponding to the gear 701, the first rack 702 and the second rack 703. The end of the first rack 702 away from the slider 2011 is formed with an inclined surface. The inclined surface provided on the first rack 702 can allow the first rack 702 to shovel soil when sliding to prevent soil from being left inside the movable groove. The fixing member 201 is provided with rotating holes at both ends of the gear 701. Both ends of the gear 701 are connected to the rotating holes through bearings. The provided bearings can reduce the friction force of the gear 701 during rotation and improve the stability of the gear 701 during rotation.

[0027] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, when the feedback member 6 contacts the soil surface, the feedback member 6 drives the plurality of second racks 703 to slide upward, and then the second racks 703 drive the gear 701 to rotate. When the gear 701 rotates, the first rack 702 drives the first independent member 202 or the second independent member 203 to slide toward the center of the fixed member 201 through the slider 2011. At this time, when the feedback member 6 slides upward, the plurality of transmission components 7 make the plurality of first independent members 202 and the plurality of second independent members 203 approach each other (when the plurality of first independent members 202 and the plurality of second independent members 203 are close to each other), and the plurality of transmission components 7 are close to each other, and the plurality of transmission components 7 are close to each other, and the plurality of transmission components 7 are close to each other. When the independent parts 203 are close to each other, the docking part 502 will be inserted into the docking groove 501); when the gear 701 rotates in the opposite direction, the first rack 702 will drive the first independent part 202 or the second independent part 203 to slide in the direction away from the center of the fixed part 201 through the slider 2011. At this time, when the feedback part 6 slides downward, the multiple transmission components 7 make the multiple first independent parts 202 and the multiple second independent parts 203 move away from each other. When the multiple first independent parts 202 and the multiple second independent parts 203 move away from each other, it is convenient to completely remove the soil core column.

[0028] The bracket 1, driving assembly 3 and adjusting assembly 4 described in the present application are well-known technologies in the technical field, so their specific structures and working principles are not described in detail.

[0029] In summary, the specific beneficial effects are: Improve the integrity of the soil core column: After the sampling assembly 2 is completely drilled into the soil, the feedback component 6 and the transmission component 7 allow the plurality of first independent components 202 and the plurality of second independent components 203 to approach each other and exhaust the internal air, which makes the soil core column more compact in the sampling assembly 2, and reduces the possibility of the soil core column being broken or falling due to loosening during the removal process, thereby greatly improving the integrity of the soil core column, which is conducive to the subsequent accurate analysis and research of the soil sample; Maintaining the original state of the soil core column: The process of compacting the soil core column and expelling the air can minimize the interference of external factors on the original structure and properties of the soil core column, so that the extracted soil core column can more truly reflect the physical, chemical and mechanical properties of the soil in its natural state, providing a more reliable data basis for soil research; Easy to remove the soil core column: when the sampling component 2 is separated from the soil, the feedback component 6 and the transmission component 7 allow the multiple first independent components 202 and the multiple second independent components 203 to move away from each other. This design cleverly solves the friction problem between the soil core column and the inner wall of the sampling component 2, so that the soil core column can be easily and completely removed from the sampling component 2 without using additional tools or complicated operations to forcibly separate the soil core column and the sampling component 2, which greatly saves sampling time and labor costs.

[0030] Adaptability to various soil types: Regardless of different types of soil, such as soft sand, loam, or relatively hard clay, the feedback component 6 and the transmission component 7 can cooperate to flexibly control the multiple first independent components 202 and the multiple second independent components 203 to achieve a good coring effect. It has a wide range of applicability and can meet the sampling needs under different soil conditions.

[0031] The working process is as follows: S1, such as Figures 1 to 3 As shown, when sampling, the bracket 1 is placed at a designated point, and then the first motor 301 controls the driving shaft 303 and the sampling assembly 2 to rotate through the coupling 302; S2, such as Figures 1 to 3 As shown, when the sampling component 2 rotates, the second motor 402 controls the screw rod 403 to rotate, and then the moving member 404 is threadedly connected to the screw rod 403, so that the moving member 404 controls the driving component 3, the sampling component 2 and the feedback component 6 to move downward, so that the sampling component 2 drills into the soil in a rotating state; S3, such as Figures 9 to 12 As shown, when the feedback member 6 contacts the soil surface, the feedback member 6 drives the plurality of second racks 703 to slide upward, and then the second racks 703 drive the gear 701 to rotate; S4, such as Figures 9 to 12 As shown, when the gear 701 rotates, the first rack 702 drives the first independent member 202 or the second independent member 203 to slide toward the center of the fixed member 201 through the slider 2011, as shown in FIG. Figures 3 to 6 As shown, at this time, when the feedback member 6 slides upward, the plurality of transmission components 7 make the plurality of first independent members 202 and the plurality of second independent members 203 approach each other (when the plurality of first independent members 202 and the plurality of second independent members 203 approach each other, the docking member 502 will be inserted into the docking groove 501); S5, such as Figures 3 to 6 As shown, by bringing a plurality of first independent pieces 202 and a plurality of second independent pieces 203 close to each other, the soil core column inside them can be compacted and the air inside the soil core column can be discharged; S6, such as Figures 1 to 3 As shown, after the sampling is completed, the second motor 402 controls the screw rod 403 to rotate in the opposite direction, and then the moving member 404 is threadedly connected to the screw rod 403, so that the moving member 404 controls the driving component 3, the sampling component 2 and the feedback component 6 to move upward, so that the sampling component 2 is separated from the soil. At this time, the contraction of the multiple first independent parts 202 and the multiple second independent parts 203 can prevent the multiple first independent parts 202 and the multiple second independent parts 203 from touching the hole wall when they move in the hole; S7, such as Figures 1 to 3As shown, when the adjustment component 4 controls the driving component 3, the sampling component 2 and the feedback component 6 to move to the top, the support rod 101 presses the feedback component 6, thereby causing the feedback component 6 to slide downward, as shown in FIG. Figures 9 to 12 As shown, at this time, the feedback member 6 drives the plurality of second racks 703 to slide downward, thereby allowing the second racks 703 to control the gear 701 to rotate in the opposite direction; S8, such as Figures 9 to 12 As shown, when the gear 701 rotates in the reverse direction, the first rack 702 drives the first independent member 202 or the second independent member 203 to slide in a direction away from the center of the fixed member 201 through the slider 2011, as shown in FIG. Figures 3 to 6 As shown, at this time, when the feedback member 6 slides downward, the plurality of transmission components 7 make the plurality of first independent members 202 and the plurality of second independent members 203 move away from each other; S9, such as Figures 3 to 6 As shown, when the plurality of first independent pieces 202 and the plurality of second independent pieces 203 are separated from each other, it is convenient to completely remove the soil core column.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A road detection sampling device, characterized in that: The invention comprises a support (1) and a sampling assembly (2), wherein the support (1) is provided with a driving assembly (3) for controlling the rotation of the sampling assembly (2), and the support (1) is provided with an adjusting assembly (4) for controlling the longitudinal sliding of the driving assembly (3) and the sampling assembly (2); The sampling assembly (2) comprises a fixing member (201), a plurality of first independent members (202) and a plurality of second independent members (203) being slidably disposed at the bottom of the fixing member (201), the plurality of first independent members (202) and the plurality of second independent members (203) being alternately disposed along the circumference of the fixing member (201) to form a cylindrical structure, and the plurality of first independent members (202) and the plurality of second independent members (203) are cooperatively connected via a sealing structure (5); A feedback member (6) is slidably provided on the top of the fixing member (201); the feedback member (6) is cooperatively connected with the plurality of first independent members (202) and the plurality of second independent members (203) via a transmission assembly (7); when the feedback member (6) slides upward, the plurality of transmission assemblies (7) make the plurality of first independent members (202) and the plurality of second independent members (203) approach each other; when the feedback member (6) slides downward, the plurality of transmission assemblies (7) make the plurality of first independent members (202) and the plurality of second independent members (203) move away from each other.

2. A road detection sampling device according to claim 1, characterized in that: The plurality of first independent parts (202) and the plurality of second independent parts (203) are all arc-shaped.

3. A road detection sampling device according to claim 2, characterized in that: The sealing structure (5) comprises docking grooves (501) provided on both sides of the first independent member (202), and the second independent member (203) is fixedly provided with docking members (502) at positions corresponding to the docking grooves (501).

4. A road detection sampling device according to claim 3, characterized in that: The docking piece (502) is made of memory metal. When the plurality of first independent pieces (202) and the plurality of second independent pieces (203) are brought close to each other, the docking piece (502) is inserted into the docking groove (501). When the plurality of transmission assemblies (7) cause the plurality of first independent pieces (202) and the plurality of second independent pieces (203) to move away from each other, the docking piece (502) slides out from the docking groove (501), thereby using the docking piece (502) to cover the gaps between the plurality of first independent pieces (202) and the plurality of second independent pieces (203).

5. A road detection sampling device according to claim 1, characterized in that: Slide blocks (2011) are fixedly provided on the tops of the plurality of first independent parts (202) and the plurality of second independent parts (203), and slide grooves (212) are provided at positions of the fixing part (201) corresponding to the plurality of slide blocks (2011).

6. A road detection sampling device according to claim 5, characterized in that: The cross section of the slider (2011) is T-shaped. The transmission assembly (7) includes a gear (701) rotatably arranged on the top of the fixing member (201). The slider (2011) is located below the gear (701) and is fixedly provided with a first rack (702) meshing with the gear (701). The first rack (702) is laterally slidably engaged with the fixing member (201). The gear (701) is meshed with a second rack (703) near the center of the fixing member (201). The second rack (703) is longitudinally slidably engaged with the fixing member (201). A cavity is opened at the center of the feedback member (6), and the second rack (703) is fixedly installed inside the cavity of the feedback member (6).

7. A road detection sampling device according to claim 6, characterized in that: The fixing member (201) is provided with movable grooves at positions corresponding to the gear (701), the first rack (702) and the second rack (703), and an inclined surface is formed at one end of the first rack (702) away from the slider (2011).

8. A road detection sampling device according to claim 7, characterized in that: The fixing member (201) is provided with rotation holes at both ends of the gear (701), and both ends of the gear (701) are matched and connected to the rotation holes via bearings.

9. A road detection sampling device according to claim 1, characterized in that: The drive assembly (3) comprises a first motor (301), the output end of the first motor (301) being fixedly mounted with a drive shaft (303) via a coupling (302), the drive shaft (303) being fixedly mounted at the center of the top of the fixing member (201), and the feedback member (6) being provided with a movable hole at a position corresponding to the drive shaft (303).

10. A road detection sampling device according to claim 9, characterized in that: The adjustment component (4) comprises a slide rail (401) fixedly mounted on the bracket (1); a second motor (402) is fixedly mounted on the top of the slide rail (401); an output end of the second motor (402) passes through the slide rail (401) and a lead screw (403) is fixedly mounted inside the slide rail (401); a moving part (404) is threadedly connected to the outer surface of the lead screw (403); the moving part (404) is slidably matched with the slide rail (401); and the first motor (301) is fixedly mounted on the moving part (404).

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