A creative assembled container

By designing assembled creative containers, using technical means such as telescopic sleeves, positioning bolts and pulleys, the applicability problems caused by the single size and shape of the existing container are solved, and flexible adjustment and stability improvement of the container are achieved.

CN222743323UActive Publication Date: 2025-04-11WEIFANG WANLONG STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202421559476.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-04-11
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

Most existing containers are fixed in size and shape, which makes it impossible to quickly adjust according to actual conditions, affecting their applicability in different transportation and storage scenarios.

Method used

An assembled creative container is designed, using a combination of sealing components, expansion components and support components, and the container is flexible to adjust and seal through technical means such as telescopic sleeves, positioning bolts and pulleys.

Benefits of technology

It realizes flexible adjustment and stability improvement of containers, improving its applicability and practicality in different transportation and storage scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of containers, and in particular to an assembled creative container. Technical problem: Most of the existing containers are fixed in one direction in size and shape, which may lead to the inability to quickly adjust according to actual conditions, thus affecting the applicability of the container in different transportation and storage scenarios. Technical solution: An assembled creative container includes a sealing component, an expansion component and a support component. After all are fixed, the telescopic column is driven by a cylinder to drive the support base to move downward along the U-shaped telescopic sleeve until the support base is close to the ground, so as to support and position the container as a whole, avoid shaking or movement during use, and improve the stability of the container. Then, the installation round block drives the second combination plate to be fixedly connected to the first combination plate through the installation round hole, so that the container can be horizontally spliced ​​in multiple groups for use, thereby improving the practicality of the container.
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Description

Technical Field

[0001] The utility model relates to the technical field of containers, in particular to an assembled creative container. Background Art

[0002] A container is a large cargo container, usually used to transport goods, especially in international trade. Containers are usually made of metals such as steel and lead. They are also made of fiberglass or high-strength plastic. They come in a variety of sizes and shapes. The most common are standard containers of twenty feet and forty feet. Creative containers refer to the transformation and upgrading of traditional containers through innovative design and technical means to give them more functions and usage scenarios. This creative container usually adopts a modular design and can be quickly assembled and disassembled as needed. It is highly flexible and scalable. Existing containers are mostly fixed in one direction in size and shape, which may make it impossible to quickly adjust according to actual conditions, thus affecting the applicability of containers in different transportation and storage scenarios; so we proposed an assembled creative container to solve the above problems. Utility Model Content

[0003] In order to overcome the problem that existing containers are mostly fixed in one direction in size and shape, which may lead to the inability to quickly adjust according to actual conditions, thus affecting the applicability of containers in different transportation and storage scenarios.

[0004] The technical solution of the utility model is: an assembled creative container, including a sealing component, an expansion component and a supporting component; the upper end of the expansion component is equipped with a sealing component for adjusting according to the adjusted length of the expansion component and sealing the expansion component, and the lower end of the expansion component is horizontally equipped with two groups of supporting components for supporting and positioning the expansion component to avoid shaking or moving during use.

[0005] Preferably, the second telescopic sleeve and the third telescopic sleeve are moved to the required position by the pulley, and then, according to the needs of the actual situation, the second telescopic sleeve and the third telescopic sleeve are adjusted by the second positioning bolt, and the second telescopic sleeve and the third telescopic sleeve are moved horizontally along the U-shaped telescopic plate to the required length. After confirming that the length is correct, the second positioning bolt passes through the second telescopic sleeve and the third telescopic sleeve and is positioned and connected to the U-shaped telescopic plate through the second positioning hole. Then, according to the length of the second telescopic sleeve and the third telescopic sleeve after extension, the first telescopic sleeve is adjusted by the first positioning bolt, and the first telescopic sleeve is moved horizontally along the rectangular telescopic plate to a suitable length. After confirmation, the first positioning bolt passes through the first telescopic sleeve and is positioned and connected to the rectangular telescopic plate through the first positioning hole. Finally, the plug-in column drives the first telescopic sleeve to be fixedly connected to the first combination plate and the second combination plate through the plug-in hole, and the space expanded by the second telescopic sleeve and the third telescopic sleeve is sealed. After all are fixed, the mounting round block drives the second combination plate to be fixedly connected to the first combination plate through the mounting round hole. In this way, the container can be horizontally spliced ​​in multiple groups for use, thereby improving the practicability of the container.

[0006] Preferably, the sealing assembly includes a first telescopic sleeve, a rectangular telescopic plate, a first positioning bolt, a plug-in column, a connecting plate, a rotating column, a U-shaped frame and a motor. The first telescopic sleeve is provided on the outside of each of the two sides of the rectangular telescopic plate. The first positioning bolts are symmetrically provided on both sides of the connection between the first telescopic sleeve and the rectangular telescopic plate. Multiple groups of first positioning holes for the first positioning bolts to pass through are symmetrically provided on both sides of the rectangular telescopic plate. According to the length of the second telescopic sleeve and the third telescopic sleeve after expansion, the first telescopic sleeve is moved laterally along the rectangular telescopic plate to an appropriate length through adjustment of the first positioning bolt. After confirmation, the first positioning bolt passes through the first telescopic sleeve and is positioned and connected to the rectangular telescopic plate through the first positioning hole.

[0007] Preferably, multiple groups of plug-in columns are installed laterally symmetrically on both sides of the lower end of the first telescopic sleeve, a connecting plate is installed on the side of the upper end of the first telescopic sleeve close to the rectangular telescopic plate, a rotating column is installed on the side of the connecting plate away from the rectangular telescopic plate, a motor is installed on one side of the rotating column, the U-shaped frame is rotatably connected to the connecting plate through the rotating column, and then the plug-in column drives the first telescopic sleeve to be fixedly connected to the first combination plate and the second combination plate through the plug-in hole, and the space expanded by the second telescopic sleeve and the third telescopic sleeve is sealed. When disassembly, maintenance or transportation is required, the U-shaped frame is driven by the motor to rotate through the rotating column and the connecting plate to be perpendicular to the first telescopic sleeve, which is convenient for lifting.

[0008] Preferably, the expansion component includes a second telescopic sleeve, a connecting shaft, an opening and closing door, a handle, a first combination plate, a pulley, a second combination plate, a mounting round block, a U-shaped telescopic plate, a second positioning bolt, a third telescopic sleeve and a glass window. A rectangular notch is provided in the middle of one side of the second telescopic sleeve, and an opening and closing door is provided at the position where the second telescopic sleeve has the rectangular notch. A connecting shaft is installed on one side of the opening and closing door, and the opening and closing door is rotatably connected to the second telescopic sleeve through the connecting shaft. A handle is installed on the side of the opening and closing door away from the connecting shaft, and a third telescopic sleeve is provided on the side of the second telescopic sleeve away from the closing door. Finally, by pulling the handle, the opening and closing door is rotatably connected to the second telescopic sleeve through the connecting shaft, so that you can enter the interior of the container, and air circulation can be carried out by opening the glass window, which is convenient for later life.

[0009] Preferably, a glass window is installed in the middle of the side of the third telescopic sleeve away from the second telescopic sleeve, a U-shaped telescopic plate is sleeved and connected between the second telescopic sleeve and the third telescopic sleeve, two groups of second positioning bolts are linearly symmetrically provided at the connection between the second telescopic sleeve and the third telescopic sleeve and the U-shaped telescopic plate, and multiple groups of second positioning holes for the second positioning bolts to pass through are horizontally symmetrically provided on both sides of the upper and lower sides of the U-shaped telescopic plate, a first combination plate is installed on one side of the second telescopic sleeve and the third telescopic sleeve, the second telescopic sleeve and the third telescopic sleeve are moved to the required position by a pulley, and then according to the needs of the actual situation, the second telescopic sleeve and the third telescopic sleeve are moved horizontally to the required length along the U-shaped telescopic plate by adjusting the second positioning bolts.

[0010] Preferably, the first combined plate is provided with mounting circular holes for fixedly connecting mounting circular blocks at the corners, two sets of pulleys are installed at the edges of both sides of the lower ends of the second telescopic sleeve and the third telescopic sleeve, the second combined plate is installed on the side of the second telescopic sleeve and the third telescopic sleeve away from the first combined plate, and mounting circular blocks are installed at the corners of the second combined plate, and plug-in holes for the plug-in columns to pass through are provided above the first combined plate and the second combined plate corresponding to the plug-in columns. After confirming that the length is correct, the second positioning bolt passes through the second telescopic sleeve and the third telescopic sleeve and is positioned and connected to the U-shaped telescopic plate through the second positioning hole, and then the mounting circular block drives the second combined plate to be fixedly connected to the first combined plate through the mounting circular hole. In this way, the container can be horizontally spliced ​​in multiple groups for use, thereby improving the practicality of the container.

[0011] Preferably, the supporting assembly includes a cylinder, a U-shaped telescopic sleeve, a telescopic column and a supporting base. A cylinder is installed at the edges of both sides of the upper end of the U-shaped telescopic sleeve, and telescopic columns are provided inside the two ends of the U-shaped telescopic sleeve. The lower end of the telescopic column is installed with a supporting base. When the container is moved to the required position, the telescopic column drives the supporting base to move downward along the U-shaped telescopic sleeve through the drive of the cylinder until the supporting base is close to and fits the ground, thereby supporting and positioning the container as a whole, avoiding shaking or movement during use, and improving the stability of the container.

[0012] Beneficial effects of the utility model:

[0013] 1. In the past, most containers were fixed in one direction in size and shape, which may result in the inability to make quick adjustments according to actual conditions, thereby affecting the applicability of containers in different transportation and storage scenarios. In contrast, the second telescopic sleeve and the third telescopic sleeve are moved to the required position through the pulley, and then, according to actual needs, the second telescopic sleeve and the third telescopic sleeve are moved horizontally along the U-shaped telescopic plate to the required length through the adjustment of the second positioning bolt. After confirming that the length is correct, the second positioning bolt passes through the second telescopic sleeve and the third telescopic sleeve and is positioned and connected to the U-shaped telescopic plate through the second positioning hole, and then the second telescopic sleeve and the third telescopic sleeve are moved horizontally along the U-shaped telescopic plate to the required length through the adjustment of the second positioning bolt. The first telescopic sleeve is moved horizontally to a suitable length along the rectangular telescopic plate through the adjustment of the first positioning bolt. After confirmation, the first positioning bolt passes through the first telescopic sleeve and is positioned and connected with the rectangular telescopic plate through the first positioning hole. Finally, the plug-in column drives the first telescopic sleeve to be fixedly connected with the first combination plate and the second combination plate through the plug-in hole, and the space expanded by the second telescopic sleeve and the third telescopic sleeve is sealed. After all are fixed, the installation round block drives the second combination plate to be fixedly connected with the first combination plate through the installation round hole. In this way, the container can be horizontally spliced ​​in multiple groups for use, thereby improving the practicality of the container.

[0014] 2. Driven by the cylinder, the telescopic column drives the support base to move downward along the U-shaped telescopic sleeve until the support base is close to the ground, providing overall support and positioning for the container to avoid shaking or movement during use and improve the stability of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the sealing assembly structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the expansion component structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the support assembly structure of the utility model.

[0020] Explanation of the accompanying drawings: 1. Sealing assembly; 2. Extension assembly; 3. Support assembly; 101. First telescopic sleeve; 102. Rectangular telescopic plate; 103. First positioning bolt; 104. First positioning hole; 105. Plug-in column; 106. Connecting plate; 107. Rotating column; 108. U-shaped frame; 109. Motor; 201. Second telescopic sleeve; 202. Connecting shaft; 203. Opening and closing door; 204. Handle; 205. Plug-in hole; 206. First combination plate; 207. Mounting circular hole; 208. Pulley; 209. Second combination plate; 210. Mounting round block; 211. U-shaped telescopic plate; 212. Second positioning bolt; 213. Second positioning hole; 214. Third telescopic sleeve; 215. Glass window; 301. Cylinder; 302. U-shaped telescopic sleeve; 303. Telescopic column; 304. Support base. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-3 The utility model provides an embodiment: an assembled creative container, including a sealing component 1, an expansion component 2 and a support component 3; the upper end of the expansion component 2 is installed with a sealing component 1 for adjusting according to the adjusted length of the expansion component 2 and sealing the expansion component 2, and the lower end of the expansion component 2 is transversely installed with two groups of support components 3 for supporting and positioning the expansion component 2 to prevent it from shaking or moving during use. The sealing component 1 includes a first telescopic sleeve 101, a rectangular telescopic plate 102, a first positioning bolt 103, a plug-in column 105, a connecting plate 106, a rotating column 107, a U-shaped frame 108 and a motor 109, and the outer sides of the rectangular telescopic plate 102 Each sleeve is provided with a first telescopic sleeve 101, and first positioning bolts 103 are symmetrically provided on both sides of the connection between the first telescopic sleeve 101 and the rectangular telescopic plate 102. A plurality of first positioning holes 104 for the first positioning bolts 103 to pass through are symmetrically provided on both sides of the rectangular telescopic plate 102. A plurality of plug-in columns 105 are symmetrically installed on both sides of the lower end of the first telescopic sleeve 101. A connecting plate 106 is installed on the side of the upper end of the first telescopic sleeve 101 close to the rectangular telescopic plate 102, and a rotating column 107 is installed on the side of the connecting plate 106 away from the rectangular telescopic plate 102. A motor 109 is installed on one side of the rotating column 107, and a U-shaped frame 108 is rotatably connected to the connecting plate 106 through the rotating column 107.

[0023] See also Figure 4-5In this embodiment, the extension component 2 includes a second telescopic sleeve 201, a connecting shaft 202, an opening and closing door 203, a handle 204, a first combination plate 206, a pulley 208, a second combination plate 209, a mounting round block 210, a U-shaped telescopic plate 211, a second positioning bolt 212, a third telescopic sleeve 214 and a glass window 215. A rectangular notch is provided in the middle of one side of the second telescopic sleeve 201. The opening and closing door 203 is provided at the position where the rectangular notch is provided in the second telescopic sleeve 201. A connecting shaft 202 is installed on one side of the opening and closing door 203. The opening and closing door 203 is connected to the connecting shaft 202. The connecting shaft 202 is rotatably connected with the second telescopic sleeve 201, a handle 204 is installed on the side of the opening and closing door 203 away from the connecting shaft 202, a third telescopic sleeve 214 is provided on the side of the second telescopic sleeve 201 away from the closing door 203, a glass window 215 is installed in the middle of the side of the third telescopic sleeve 214 away from the second telescopic sleeve 201, a U-shaped telescopic plate 211 is sleeved and connected between the second telescopic sleeve 201 and the third telescopic sleeve 214, and two sets of second positioning bolts 212 are linearly symmetrically provided at the connection between the second telescopic sleeve 201 and the third telescopic sleeve 214 and the U-shaped telescopic plate 211 , a plurality of second positioning holes 213 for the second positioning bolts 212 to pass through are symmetrically provided on both sides of the U-shaped telescopic plate 211, and one side of the second telescopic sleeve 201 and the third telescopic sleeve 214 is installed with a first combination plate 206, and a mounting circular hole 207 for fixing and connecting the mounting circular block 210 is provided at each corner of the first combination plate 206, and two sets of pulleys 208 are installed at the edges of both sides of the lower ends of the second telescopic sleeve 201 and the third telescopic sleeve 214, and a second telescopic sleeve 201 and the third telescopic sleeve 214 are installed on the side away from the first combination plate 206. Two combined plates 209, each of which is provided with a mounting round block 210 at a corner thereof, and plug-in holes 205 for the plug-in columns 105 to pass through are provided above the first combined plate 206 and the second combined plate 209 corresponding to the plug-in columns 105, and the support assembly 3 comprises a cylinder 301, a U-shaped telescopic sleeve 302, a telescopic column 303 and a support base 304, a cylinder 301 is respectively provided at the edges of both sides of the upper end of the U-shaped telescopic sleeve 302, a telescopic column 303 is respectively provided inside the two ends of the U-shaped telescopic sleeve 302, and a support base 304 is provided at the lower end of the telescopic column 303.

[0024] During operation, the second telescopic sleeve 201 and the third telescopic sleeve 214 are moved to the required position by the pulley 208, and then, according to the actual needs, the second telescopic sleeve 201 and the third telescopic sleeve 214 are moved horizontally along the U-shaped telescopic plate 211 to the required length by adjusting the second positioning bolt 212. After confirming that the length is correct, the second positioning bolt 212 passes through the second telescopic sleeve 201 and the third telescopic sleeve 214 and is positioned and connected to the U-shaped telescopic plate 211 through the second positioning hole 213, and then the second telescopic sleeve 201 and the third telescopic sleeve 214 are adjusted according to the actual needs. 14. The first telescopic sleeve 101 is moved horizontally to a suitable length along the rectangular telescopic plate 102 by adjusting the first positioning bolt 103. After confirmation, the first positioning bolt 103 passes through the first telescopic sleeve 101 and is positioned and connected with the rectangular telescopic plate 102 through the first positioning hole 104. Finally, the plug-in column 105 drives the first telescopic sleeve 101 to be fixedly connected with the first combination plate 206 and the second combination plate 209 through the plug-in hole 205, and the space expanded by the second telescopic sleeve 201 and the third telescopic sleeve 214 is sealed.

[0025] After all the fixings are completed, the telescopic column 303 drives the support base 304 to move downward along the U-shaped telescopic sleeve 302 through the drive of the cylinder 301 until the support base 304 is close to the ground, so as to support and position the container as a whole, avoid shaking or moving during use, and improve the stability of the container. Then, the installation round block 210 drives the second assembly plate 209 to be fixedly connected with the first assembly plate 206 through the installation round hole 207, so that the container can be horizontally spliced ​​into multiple groups for use, thereby improving the practicality of the container;

[0026] When the container needs to be used, the handle 204 is pulled and the opening and closing door 203 is rotatably connected to the second telescopic sleeve 201 through the connecting shaft 202, so that the interior of the container can be entered. The glass window 215 can be opened to allow air circulation, which is convenient for later life. When it needs to be disassembled for maintenance or transportation, the U-shaped frame 108 is driven by the motor 109 to rotate through the rotating column 107 and the connecting plate 106 to be vertical to the first telescopic sleeve 101, which is convenient for lifting.

[0027] Through the above steps, the second telescopic sleeve 201 and the third telescopic sleeve 214 are moved to the required position by the pulley 208, and then according to the actual needs, the second telescopic sleeve 201 and the third telescopic sleeve 214 are adjusted along the U-shaped telescopic plate 211 to the required length by adjusting the second positioning bolt 212. After confirming that the length is correct, the second positioning bolt 212 passes through the second telescopic sleeve 201 and the third telescopic sleeve 214 and is positioned and connected to the U-shaped telescopic plate 211 through the second positioning hole 213. Then, according to the length of the second telescopic sleeve 201 and the third telescopic sleeve 214 after expansion, the first telescopic sleeve 101 is adjusted along the moment by adjusting the first positioning bolt 103. The rectangular telescopic plate 102 is moved horizontally to a suitable length. After confirmation, the first positioning bolt 103 passes through the first telescopic sleeve 101 and is positioned and connected to the rectangular telescopic plate 102 through the first positioning hole 104. Finally, the plug-in column 105 drives the first telescopic sleeve 101 to be fixedly connected to the first combination plate 206 and the second combination plate 209 through the plug-in hole 205, and the space expanded by the second telescopic sleeve 201 and the third telescopic sleeve 214 is sealed. After all are fixed, the installation round block 210 drives the second combination plate 209 to be fixedly connected to the first combination plate 206 through the installation round hole 207. In this way, the container can be horizontally spliced ​​in multiple groups for use, thereby improving the practicality of the container.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An assembled creative container, comprising a sealing assembly (1); characterized in that: The invention also comprises an expansion component (2) and a support component (3); a sealing component (1) is installed at the upper end of the expansion component (2) for adjusting the expansion component (2) according to the adjusted length and sealing the expansion component (2); and two groups of support components (3) are installed laterally at the lower end of the expansion component (2) for supporting and positioning the expansion component (2) to prevent the expansion component (2) from shaking or moving during use.

2. The assembled creative container according to claim 1, characterized in that: The sealing assembly (1) comprises a first telescopic sleeve (101), a rectangular telescopic plate (102), a first positioning bolt (103), a plug-in column (105), a connecting plate (106), a rotating column (107), a U-shaped frame (108) and a motor (109); the first telescopic sleeve (101) is provided on the outside of both sides of the rectangular telescopic plate (102); the first positioning bolts (103) are symmetrically provided on both sides of the connection between the first telescopic sleeve (101) and the rectangular telescopic plate (102); and a plurality of first positioning holes (104) for the first positioning bolts (103) to pass through are symmetrically provided on both sides of the rectangular telescopic plate (102).

3. The assembled creative container according to claim 2 is characterized by: A plurality of groups of plug-in columns (105) are symmetrically installed on both sides of the lower end of the first telescopic sleeve (101); a connecting plate (106) is installed on the side of the upper end of the first telescopic sleeve (101) close to the rectangular telescopic plate (102); a rotating column (107) is installed on the side of the connecting plate (106) away from the rectangular telescopic plate (102); a motor (109) is installed on one side of the rotating column (107); and a U-shaped frame (108) is rotatably connected to the connecting plate (106) via the rotating column (107).

4. The assembled creative container according to claim 1 is characterized by: The expansion assembly (2) comprises a second telescopic sleeve (201), a connecting shaft (202), an opening and closing door (203), a handle (204), a first combination plate (206), a pulley (208), a second combination plate (209), a mounting round block (210), a U-shaped telescopic plate (211), a second positioning bolt (212), a third telescopic sleeve (214) and a glass window (215). A rectangular notch is provided in the middle of one side of the second telescopic sleeve (201). An opening and closing door (203) is provided at a position where the telescopic sleeve (201) is provided with a rectangular notch; a connecting shaft (202) is installed on one side of the opening and closing door (203); the opening and closing door (203) is rotatably connected to the second telescopic sleeve (201) via the connecting shaft (202); a handle (204) is installed on the side of the opening and closing door (203) away from the connecting shaft (202); and a third telescopic sleeve (214) is provided on the side of the second telescopic sleeve (201) away from the closing door (203).

5. The assembled creative container according to claim 4 is characterized by: A glass window (215) is installed in the middle of one side of the third telescopic sleeve (214) away from the second telescopic sleeve (201); a U-shaped telescopic plate (211) is sleeved and connected between the second telescopic sleeve (201) and the third telescopic sleeve (214); two groups of second positioning bolts (212) are linearly symmetrically provided at the connection between the second telescopic sleeve (201) and the third telescopic sleeve (214) and the U-shaped telescopic plate (211); a plurality of groups of second positioning holes (213) for the second positioning bolts (212) to pass through are transversely symmetrically provided on both sides of the U-shaped telescopic plate (211) at the upper and lower sides; and a first combination plate (206) is installed on one side of each of the second telescopic sleeve (201) and the third telescopic sleeve (214).

6. The assembled creative container according to claim 4 is characterized by: The first assembly plate (206) is provided with mounting circular holes (207) at the corners for fixing and connecting mounting circular blocks (210); two sets of pulleys (208) are installed at the edges of both sides of the lower ends of the second telescopic sleeve (201) and the third telescopic sleeve (214); a second assembly plate (209) is installed on the side of the second telescopic sleeve (201) and the third telescopic sleeve (214) away from the first assembly plate (206); mounting circular blocks (210) are installed at the corners of the second assembly plate (209); and plugging holes (205) for the plugging columns (105) to pass through are provided above the first assembly plate (206) and the second assembly plate (209) corresponding to the plugging columns (105).

7. The assembled creative container according to claim 1 is characterized by: The support assembly (3) comprises a cylinder (301), a U-shaped telescopic sleeve (302), a telescopic column (303) and a support base (304); the cylinder (301) is installed at the edges of both sides of the upper end of the U-shaped telescopic sleeve (302); the telescopic columns (303) are installed inside the two ends of the U-shaped telescopic sleeve (302); and the support base (304) is installed at the lower end of the telescopic column (303).