Transport device for R&D and testing of solar panels
By introducing the design of mobile components and control components in the transfer device, the switching of loading and unloading and moving modes is realized, solving the problem of poor stability in the prior art, and improving the flexibility and practicality of transfer and loading and unloading of solar modules.
Patent Information
- Application Number
- CN202411019230.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2044-07-29
AI Technical Summary
The existing transport devices lack the locking structure of the moving wheel, which leads to extremely poor stability during the loading and unloading of solar energy components, and cannot stably realize the transfer and loading and unloading of accessories, and are not flexible and practical.
A transport device based on the research and development and testing of solar energy modules is designed, and a combination of mobile components and control components is adopted. The mobile components have loading and unloading mode and mobile mode. Through control components adjustment and locking, stable transport of solar energy module accessories is achieved. and loading and unloading, including load holder, mounting plate, linkage lever, moving wheel, push and pull handrail, switching control lever and mode lock block, etc., to ensure that no free movement is caused by vibration and impact during loading and unloading.
It realizes stable loading, unloading and transport of solar module accessories, improves the flexibility, adaptability and practicality of the device, ensures the durability and stability of mobile components during loading and unloading, and can flexibly switch usage modes to meet different operating needs.
Smart Images

Figure CN118545135B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of transfer devices, and in particular to a transfer device used for research and development testing of solar energy components. Background Art
[0002] Solar energy is an emerging renewable energy source. It refers to the thermal radiation energy of the sun, which is mainly manifested in the so-called sunlight. It is generally used to generate electricity or provide energy for water heaters. Photovoltaic modules are needed to convert solar energy into electrical energy. Photovoltaic power generation is a technology that uses the photovoltaic effect of the semiconductor interface to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels, controllers and inverters. The main components are composed of electronic components. The research and development and testing of solar energy modules is to improve the photoelectric conversion rate of solar energy modules. When developing and testing solar energy modules, the corresponding accessories need to be transported and moved in the warehouse through transfer devices. After assembly, they can be used for research and development and testing.
[0003] However, as far as the current transfer device is concerned, it does not have a locking structure for the moving wheels, which causes the transfer device to always be in a moving state. As a result, after the corresponding accessories of the solar panels are placed on the top of the transfer device, the transfer device will move freely due to the force or impact of the placement, and the stability is extremely poor. It cannot stably realize the loading, unloading and transfer of solar accessories, and cannot meet the stable transfer requirements of the accessories. It has poor flexibility and stability and is not very practical. Summary of the invention
[0004] In view of this, the present invention provides a transfer device for research and development testing of solar components, which has a moving component and a control component, the control component can control the use mode of the moving component, the moving component has a loading and unloading mode and a moving mode, that is, when the device needs to move and transfer the accessories of the solar component, the moving wheels of the moving component can extend out of the interior of the cargo seat for moving and transferring when the device needs to load and unload the accessories of the solar component, the moving wheels of the moving component can be hidden in the interior of the cargo seat when the device is in the loading and unloading mode, so that the cargo seat can be directly placed on the ground for use, and the phenomenon of free movement of the device will not occur due to the vibration or impact generated when the accessories of the solar component are loaded and unloaded. The loading and unloading is stable, and the use method of loading and unloading the accessories of the solar component protects the vibration and impact force generated by the mobile component when loading and unloading the accessories of the solar component from acting on the mobile component, so that the device is durable and stable to use. The two use modes of the mobile component can be adjusted and locked by the control component, and the switching is convenient and flexible to use. The transfer and loading and unloading operations of the accessories of the solar component can be stably realized, and the flexibility, adaptability, stability and practicality are extremely strong.
[0005] The present invention provides a transfer device for the research, development and testing of solar energy components, which specifically includes: a carrier seat, a moving component is installed inside the carrier seat, and a control component is installed on the top surface of the carrier seat; the moving component includes a mounting plate, a linkage rod and a moving wheel, the mounting plate is plugged into the inside of the carrier seat, and the linkage rod is plugged into the bottom of the carrier seat, the moving wheel is rotatably connected to the inside of the mounting plate, and four moving wheels are installed on the mounting plate; the control component includes a push-pull armrest, a switching control lever and a mode locking block, the bottom of the push-pull armrest is rotatably connected to the inside of the carrier seat, the switching control lever is plugged into the inside of the push-pull armrest, and the mode locking block is plugged into the inside of the push-pull armrest.
[0006] Optionally, two locking holes are provided on the top of the object carrier, and the angle between the two locking holes is forty-five degrees. A locking column is provided on the side of the mode locking block, and the column body of the locking column passes through the push-pull armrest.
[0007] Optionally, a limiting groove is provided on the top of the object carrier, and the rod body at the bottom of the push-pull armrest is inserted into the limiting groove, and the maximum rotation angle of the push-pull armrest in the limiting groove is forty-five degrees.
[0008] Optionally, an inclined unlocking groove is provided inside the block body of the mode locking block, and an unlocking rod is provided at the bottom of the switching control lever, and the unlocking rod is inserted into the unlocking groove.
[0009] Optionally, a spring retaining ring is provided in the middle of the rod body of the switching control lever, and the spring retaining ring is inserted into the inside of the pushing and pulling armrest. A locking top spring is sleeved on the outside of the rod body of the switching control lever, and the two ends of the locking top spring are respectively fixedly connected to the top of the spring retaining ring and the inside of the pushing and pulling armrest.
[0010] Optionally, a long strip-shaped linkage groove is provided at the bottom of the push-pull handrail, and a linkage column is provided at one end of the linkage rod, and the linkage column is inserted into the linkage groove.
[0011] Optionally, a guide groove is provided on the side of the linkage rod, and a guide block is provided at the bottom of the object carrier, and the guide block is inserted into the inside of the guide groove.
[0012] Optionally, a lifting rod is provided at the other end of the linkage rod, and a lifting plate is provided on the top of the mounting plate, an inclined lifting slot is provided inside the lifting plate, and the lifting rod is inserted into the lifting slot.
[0013] Optionally, a track block is provided on the side of the mounting plate, and the cross-sectional shape of the track block is "T"-shaped, a track groove is provided inside the object carrier, and the track block is inserted into the inside of the track groove.
[0014] Beneficial effect: when the device is in use, the control component can control the use mode of the mobile component, and the mobile component has a loading and unloading mode and a moving mode, that is, when the device needs to move and transport the accessories of the solar panel, the mobile component is in the moving mode and the moving wheels can extend out of the interior of the cargo seat for moving and transporting use; when the device needs to load and unload the accessories of the solar panel, the mobile component is in the loading and unloading mode and the moving wheels can be hidden inside the cargo seat, so that the cargo seat can be directly placed on the ground for use, and the device will not move freely due to the vibration or impact generated during the loading and unloading of the accessories of the solar panel, and the loading and unloading is stable. Moreover, this use method of loading and unloading the accessories of the solar panel protects the vibration and impact force generated by the mobile component during the loading and unloading of the accessories of the solar panel from acting on the mobile component, making the device durable and stable to use. The two use modes of the mobile component can be adjusted and locked by the control component, and the switching is convenient and flexible to use. The transportation and loading and unloading operations of the accessories of the solar panel can be stably realized, thereby improving the flexibility, adaptability, stability and practicality of the device.
[0015] In addition, the use mode of the mobile component can be adjusted by changing the use posture of the push-pull armrest. When the push-pull armrest is in a vertical state, the mobile component is hidden inside the carrier and is in a loading and unloading mode, and the carrier can be directly placed on the ground for use, thereby enabling stable loading and unloading of the accessories of the solar panel. When the push-pull armrest is in an inclined state, the moving wheels of the mobile component extend out of the carrier and are in a moving mode, thereby enabling the push-pull armrest to drive the device to move freely to achieve the transportation operation of the accessories of the solar panel. The use posture of the push-pull armrest can be self-locking through the cooperation of the locking column and the locking hole, so that the push-pull armrest can stably realize the function of controlling the use mode of the mobile component and is stable to use.
[0016] After the switching is completed, the switching control lever is released, and the switching control lever can drive the mode locking block to reset and be inserted into the other locking hole under the action of the locking top spring, thereby locking the use posture of the push-pull armrest again, and the adjustment switching is fast and the use is flexible.
[0017] In addition, the push-pull armrest can synchronously change the use mode of the mobile component when changing the usage posture, thereby realizing the switching of the loading and unloading mode and the moving mode of the mobile component, and can adapt to the loading and unloading and transportation operations of the accessories of the solar panel. When the push-pull armrest rotates, the linkage groove at the bottom of the push-pull armrest can drive the linkage rod to move in a straight line through the linkage column, so that when the linkage rod moves, the lifting rod at the other end of the linkage rod can drive the mounting plate to realize the lifting operation through the lifting groove, thereby realizing the operation of hiding the mobile component inside the carrier and extending the moving wheels of the mobile component outside the carrier, realizing the switching function of the two usage modes of the mobile component, and can stably adapt to the loading and unloading and transportation operations of the accessories of the solar panel, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0020] In the attached picture:
[0021] Figure 1 A schematic diagram showing the structure of the mobile assembly of the present invention when it is in a loading and unloading mode;
[0022] Figure 2 A schematic diagram of the structure of the control assembly of the present invention after being disassembled is shown;
[0023] Figure 3 A schematic diagram showing the structure of the disassembled mobile assembly of the present invention is shown;
[0024] Figure 4 A schematic diagram showing the structure of the top of the object carrier of the present invention is shown;
[0025] Figure 5 A schematic diagram showing the structure of the bottom of the object carrier of the present invention is shown;
[0026] Figure 6 The present invention is shown Figure 1 Schematic diagram of the internal structure;
[0027] Figure 7 It shows a schematic diagram of the internal structure of the present invention after the switching control lever is lifted;
[0028] Figure 8 A schematic diagram showing the internal structure of the mobile assembly of the present invention when it is in mobile mode;
[0029] Fig. 9 The present invention is shown Figure 6 The schematic diagram of the structure of the enlarged part A in the middle;
[0030] Fig.10 The present invention is shown Figure 7 The schematic diagram of the structure of the enlarged part B in the middle;
[0031] Fig.11 The present invention is shown Figure 8 Schematic diagram of the enlarged structure of part C in the middle.
[0032] Reference numerals list
[0033] 1. Carrying seat; 101. Locking hole; 102. Limiting slot; 103. Guide block; 104. Track slot; 2. Moving assembly; 201. Mounting plate; 2011. Lifting slot; 2012. Track block; 202. Linkage rod; 2021. Linkage column; 2022. Guide slot; 2023. Lifting rod; 203. Moving wheel; 3. Control assembly; 301. Push-pull armrest; 3011. Linkage slot; 302. Switching control lever; 3021. Unlocking lever; 3022. Locking top spring; 303. Mode locking block; 3031. Locking column; 3032. Unlocking slot. DETAILED DESCRIPTION
[0034] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.
[0035] Example: Please refer to Figures 1 to 11 :
[0036] The present invention proposes a transfer device for the research and development and testing of solar panels, comprising: a carrier 1, a moving component 2 is installed inside the carrier 1, and a control component 3 is installed on the top surface of the carrier 1, and a rubber anti-slip block is provided at the bottom of the carrier 1, and the rubber anti-slip block can increase the friction between the carrier 1 and the ground when the moving component 2 is in the loading and unloading mode, so that the device is more stable during loading and unloading. At the same time, the rubber anti-slip block can also provide shock absorption and buffering for the device, thereby improving the stability of the device during loading and unloading. The mobile component 2 includes a mounting plate 201, a linkage rod 202 and moving wheels 203, the mounting plate 201 is inserted into the interior of the object carrier 1, and the linkage rod 202 is inserted into the bottom of the object carrier 1, the moving wheel 203 is rotatably connected to the interior of the mounting plate 201, and four moving wheels 203 are installed on the mounting plate 201; the control component 3 includes a push-pull armrest 301, a switching control lever 302 and a mode locking block 303, the bottom of the push-pull armrest 301 is rotatably connected to the interior of the object carrier 1, the switching control lever 302 is inserted into the interior of the push-pull armrest 301, and the mode locking block 303 is inserted into the interior of the push-pull armrest 301.
[0037] In addition, according to an embodiment of the present invention, Figure 2 and Figure 4 As shown, two locking holes 101 are provided on the top of the carrier 1, and the angle between the two locking holes 101 is forty-five degrees. A locking column 3031 is provided on the side of the mode locking block 303, and the column body of the locking column 3031 passes through the push-pull armrest 301. In use, the use mode of the moving component 2 can be adjusted by changing the use posture of the push-pull armrest 301. When the push-pull armrest 301 is in a vertical state, the moving component 2 is hidden in the interior of the carrier 1 and is in a loading and unloading mode. The carrier 1 can be directly placed on the ground for use, so that it can To achieve stable loading and unloading of accessories of solar panels, when the push-pull armrest 301 is in a tilted state, the moving wheel 203 of the moving component 2 extends out of the interior of the loading seat 1 and is in a moving mode, so that the push-pull armrest 301 can drive the device to move freely to achieve the transportation operation of the accessories of the solar panel, and the use posture of the push-pull armrest 301 can be self-locked through the cooperation of the locking column 3031 and the locking hole 101, so that the push-pull armrest 301 can stably realize the function of controlling the use mode of the moving component 2, and the use is stable.
[0038] In addition, according to an embodiment of the present invention, Figure 2When the control assembly 3 is in the reset state, the switching control rod 302 enables the locking column 3031 of the mode locking block 303 to be stably inserted into the locking hole 101 under the action of the locking top spring 3022, and the locking hole 101 is provided with two, so that when the push-pull armrest 301 is used in the vertical state and the inclined state, the locking column 3031 can be used in conjunction with the corresponding locking hole 101 to lock the use posture of the push-pull armrest 301, so that the push-pull armrest 301 cannot rotate freely. When the use posture of the push-pull armrest 301 needs to be changed, the switching control rod 30 When the cam 302 is in the unlocking state, the locking post 3031 is released from the locking hole 101 and the locking post 3032 is released, so that the push-pull armrest 301 can be freely rotated to adjust the use posture, and the push-pull armrest 301 can be switched between the inclined and vertical use postures. After the switching is completed, the switch control lever 302 is released, and the switch control lever 302 can drive the mode locking block 303 to reset and be inserted into another locking hole 101 under the action of the locking top spring 3022, so as to lock the use posture of the push-pull armrest 301 again.
[0039] In addition, according to an embodiment of the present invention, Figure 2 As shown, a limiting groove 102 is provided on the top of the object carrier 1, and the rod body at the bottom of the push-pull armrest 301 is inserted into the limiting groove 102, and the maximum rotation angle of the push-pull armrest 301 in the limiting groove 102 is forty-five degrees. During use, the limiting groove 102 can limit the rotation trajectory and the maximum rotation angle of the push-pull armrest 301, so that the push-pull armrest 301 will not be skewed or twisted when rotating to adjust the use mode of the moving component 2, causing the device to be stuck or excessively rotated, so that the locking column 3031 can stably lock the required locking hole 101 to realize the function of locking the control component 3 and the moving component 2, and is stable to use.
[0040] In addition, according to an embodiment of the present invention, Figure 3 and Figure 5As shown, a long strip-shaped linkage groove 3011 is provided at the bottom of the push-pull handrail 301, and a linkage column 2021 is provided at one end of the linkage rod 202, and the linkage column 2021 is plugged into the linkage groove 3011. In use, the push-pull handrail 301 can synchronously change the use mode of the mobile component 2 when changing the use posture, so as to realize the switching of the loading and unloading mode and the moving mode of the mobile component 2, and can adapt to the loading and unloading and transportation operations of the accessories of the solar panel. When the push-pull handrail 301 rotates, the linkage groove 3011 at the bottom of the push-pull handrail 301 can drive the linkage rod 202 to move in a straight line through the linkage column 2021, and the other end of the linkage rod 202 A lifting rod 2023 is provided, and a lifting plate is provided on the top of the mounting plate 201. An inclined lifting groove 2011 is provided inside the lifting plate, and the lifting rod 2023 is inserted into the lifting groove 2011, so that when the linkage rod 202 moves, the lifting rod 2023 at the other end can drive the mounting plate 201 to achieve lifting operations through the lifting groove 2011, thereby realizing the operations of hiding the mobile component 2 inside the carrier 1 and extending the moving wheels 203 of the mobile component 2 out of the carrier 1, realizing the switching function of the two usage modes of the mobile component 2, and being able to stably adapt to the operations of loading, unloading and transporting the accessories of the solar panel, and having strong adaptability.
[0041] In addition, according to an embodiment of the present invention, Figure 3 and Figure 5 As shown, a guide groove 2022 is provided on the side of the linkage rod 202, and a guide block 103 is provided at the bottom of the object carrier 1, and the guide block 103 is inserted into the inside of the guide groove 2022. In use, the guide block 103 can limit the moving trajectory of the linkage rod 202 through the guide groove 2022, so that the guide block 103 can only move in a straight line and the guide block 103 will not be skewed or twisted when moving to cause the device to be stuck, and it is stable to use. A track block 2012 is provided on the side of the mounting plate 201, and the cross-sectional shape of the track block 2012 is "T" shaped. A track groove 104 is provided inside the object carrier 1, and the track block 2012 is inserted into the inside of the track groove 104. The track block 2012 can limit the lifting and lowering trajectory of the mounting plate 201 through the track groove 104, so that the mounting plate 201 will not be skewed or twisted when switching the lifting and lowering use modes, which will cause the device to be stuck and fail, thereby further improving the stability of the device.
[0042] In another embodiment, the two movable wheels 203 located on the front side of the mounting plate 201 have a steering structure, and its specific structure and working principle are existing mature technologies and will not be described here. This design enables the device to be flexibly turned and used when transporting the accessories of the solar panel, which is easy to operate and flexible to transport, further improving the practicality of the device.
[0043] Specific usage and function of this embodiment: In the present invention, the loading, unloading and transporting operations of the accessories of the solar panel are realized by changing the usage mode of the mobile component 2, and the usage mode of the mobile component 2 can be adjusted by changing the usage posture of the push-pull handrail 301. When the push-pull handrail 301 is in a vertical state, the mobile component 2 is hidden inside the carrier 1 and is in a loading and unloading mode. The carrier 1 can be directly placed on the ground for use, so that the accessories of the solar panel can be stably loaded and unloaded. When the push-pull handrail 301 is in an inclined state, the moving wheels 203 of the mobile component 2 extend out of the inside of the carrier 1 and are in a moving mode, so that the worker can drive the device to move freely by pushing and pulling the handrail 301. The transfer operation of the accessories of the solar panel is realized. The inclined design of the push-pull handrail 301 also facilitates the workers to control the moving state of the device, saving time and effort. The use posture of the push-pull handrail 301 can be self-locked through the cooperation of the locking column 3031 and the locking hole 101, so that the push-pull handrail 301 can stably realize the function of controlling the use mode of the moving component 2. When the control component 3 is in the reset state, the switching control rod 302, under the action of the locking top spring 3022, enables the locking column 3031 of the mode locking block 303 to be stably inserted into the locking hole 101, and the locking hole 101 is provided with two, so that the locking column 3031 can be connected with the corresponding locking hole 101 when the push-pull handrail 301 is used in the vertical state and the inclined state. The locking hole 101 is used in conjunction with the locking hole 101 to lock the use posture of the push-pull armrest 301, so that the push-pull armrest 301 cannot rotate freely. When the use posture of the push-pull armrest 301 needs to be changed, the switching control rod 302 only needs to be lifted. When the switching control rod 302 is lifted, the unlocking rod 3021 at the bottom thereof can drive the mode locking block 303 to move to one side through the unlocking groove 3032, so that the locking column 3031 will escape from the locking hole 101 that is plugged and locked with it. At this time, the push-pull armrest 301 can be freely rotated to adjust the use posture, and the push-pull armrest 301 can be switched between the inclined and vertical use postures. After the switching is completed, the switching control rod 302 is released, and the switching control rod 302 can be locked in the locking top spring. Under the action of 3022, the mode locking block 303 is driven to reset and plug into the inside of another locking hole 101, thereby locking the use posture of the push-pull armrest 301 again. The push-pull armrest 301 can synchronously change the use mode of the mobile component 2 when changing the use posture, thereby realizing the switching of the loading and unloading mode and the mobile mode of the mobile component 2, and can adapt to the loading and unloading and transportation operations of the accessories of the solar panel. When the push-pull armrest 301 rotates, the linkage groove 3011 at the bottom of the push-pull armrest 301 can drive the linkage rod 202 to move in a straight line through the linkage column 2021, so that when the linkage rod 202 moves, the lifting rod 2023 at the other end of the linkage rod 202 can drive the mounting plate 201 to realize the lifting operation through the lifting groove 2011.Thus, the operation of hiding the mobile component 2 inside the carrier 1 and extending the mobile wheel 203 of the mobile component 2 outside the carrier 1 is realized, and the switching function of the two use modes of the mobile component 2 is realized, which can stably adapt to the operation of loading, unloading and transporting the accessories of the solar panel.
[0044] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.
[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.
Claims
1. A transfer device for developing and testing solar panels, characterized in that: include: A carrier (1), wherein a moving assembly (2) is installed inside the carrier (1), and a control assembly (3) is installed on the top surface of the carrier (1); the moving assembly (2) comprises a mounting plate (201), a linkage rod (202) and a moving wheel (203); the mounting plate (201) is plugged into the inside of the carrier (1), and the linkage rod (202) is plugged into the bottom of the carrier (1); the moving wheel (203) is rotatably connected to the mounting plate (201). and four moving wheels (203) are installed on the mounting plate (201); the control assembly (3) comprises a push-pull armrest (301), a switching control lever (302) and a mode locking block (303); the bottom of the push-pull armrest (301) is rotatably connected to the inside of the object carrier (1), the switching control lever (302) is plugged into the inside of the push-pull armrest (301), and the mode locking block (303) is plugged into the inside of the push-pull armrest (301); The top of the object carrier (1) is provided with two locking holes (101), and the angle between the two locking holes (101) is forty-five degrees; a locking column (3031) is provided on the side of the mode locking block (303), and the column of the locking column (3031) passes through the push-pull armrest (301); A limiting groove (102) is provided on the top of the object carrier (1), and a rod body at the bottom of the push-pull armrest (301) is inserted into the limiting groove (102), and the maximum rotation angle of the push-pull armrest (301) in the limiting groove (102) is forty-five degrees; An inclined unlocking groove (3032) is provided inside the block body of the mode locking block (303), and an unlocking rod (3021) is provided at the bottom of the switching control rod (302), and the unlocking rod (3021) is inserted into the unlocking groove (3032); A spring retaining ring is provided in the middle of the rod body of the switching control rod (302), and the spring retaining ring is inserted into the interior of the push-pull handrail (301); a locking top spring (3022) is sleeved on the exterior of the rod body of the switching control rod (302), and two ends of the locking top spring (3022) are respectively fixedly connected to the top of the spring retaining ring and the interior of the push-pull handrail (301); A long strip-shaped linkage groove (3011) is provided at the bottom of the push-pull handrail (301), and a linkage column (2021) is provided at one end of the linkage rod (202), and the linkage column (2021) is inserted into the linkage groove (3011); A guide groove (2022) is provided on the side of the linkage rod (202), and a guide block (103) is provided on the bottom of the object carrier (1), and the guide block (103) is inserted into the guide groove (2022); The other end of the linkage rod (202) is provided with a lifting rod (2023), and the top of the mounting plate (201) is provided with a lifting plate, the interior of the lifting plate is provided with an inclined lifting groove (2011), and the lifting rod (2023) is inserted into the interior of the lifting groove (2011); A track block (2012) is provided on the side of the mounting plate (201), and the cross-sectional shape of the track block (2012) is "T"-shaped. A track groove (104) is provided inside the object carrier (1), and the track block (2012) is plugged into the inside of the track groove (104).
