Rice batch potting device

By designing a device for rice batch potted plants, using technical means such as U-shaped racks and electric telescopic rods, the problem of the drop and inclination of the potted plants during the grab and handling process of traditional potted plants is solved, and the stable movement and accurate placement of the potted plants are achieved.

CN222928821UActive Publication Date: 2025-06-03ZHEJIANG LONGYOU COUNTY WUGUXIANG SEEDS IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422035694.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-06-03
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

Traditional rice pot planting devices have a risk of falling or tilting the pot during the grab and handling process, which leads to damage to the rice plants and cannot be placed at equal intervals when placed in the water tank, affecting later observation and management.

Method used

A rice batch pot planting device is designed, which can realize the limiting and separation of the pot body through the U-shaped frame, and combine it with the electric telescopic rod and slide rail mechanism to realize the automatic movement and position adjustment of the pot plant.

Benefits of technology

It effectively improves the working stability and accuracy of positioning of potted plants, avoids the drop and inclination of potted bodies, realizes uniform adjustment of the spacing between potted plants, and simplifies post-management and observation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222928821U_ABST
    Figure CN222928821U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of crop planting, in particular to a rice batch potting device which comprises a potting placing mechanism, a potting mechanism and a potting mechanism. The first conveying unit is fixed to the bottom of the shell; the second conveying unit is fixed to the position, close to one side, in the shell. The supporting frame is fixed to the position, close to one side of the second conveying unit, in the shell. The shell comprises a lifting mechanism fixed to the top wall in the shell and located in the center; the two position adjusting mechanisms are fixed to the positions, located on the two sides of the lifting mechanism, in the shell correspondingly. And the multiple distance adjusting units are slidably inserted into the positions, close to the top, of the position adjusting mechanism correspondingly. According to the flowerpot, the second U-shaped frame is connected with the flowerpot body in an inserted mode, the portion, on the second square plate, of the flowerpot body can be rapidly limited, the second U-shaped frame can be moved conveniently to control the flowerpot body, all the flowerpot bodies are separated, and the working stability is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of crop planting, and particularly relates to a rice batch potting device. Background Art

[0002] As one of the most important food crops in the world, the research and improvement of rice planting technology are of great significance for improving yield and quality. In the process of rice scientific research and breeding, batch potting is a common cultivation method, which can simulate natural growth conditions and is convenient for observation and management. However, traditional rice potting devices have some limitations, especially in terms of automation and batch processing.

[0003] There are some problems in the existing devices during the grasping and handling process. Since the pots for rice planting are usually soft, traditional grasping devices may not be able to firmly grasp the pots, resulting in the pots being easily dropped or tilted during movement, thus damaging the rice plants. In addition, when dropped or tilted, there may be deviations when placed in the water tank, and it is not possible to effectively place them at equal intervals, which is not convenient for later observation and management. Content of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the present utility model is to provide a rice batch potting device. By inserting the U-shaped frame II into the pot body, the pots on the second square plate can be quickly limited, which is convenient for moving the U-shaped frame II to control the pots and separate each pot, effectively improving the working stability. By adjusting the position of each square rod in advance according to the position to be placed by the personnel, it can ensure that the potting positions placed in each water tank are the same, effectively improving the convenience and the accuracy of the placement position.

[0005] A rice batch potting device, comprising:

[0006] A potting placement mechanism, the potting placement mechanism comprising a housing;

[0007] A first conveying unit, fixed to the bottom of the housing;

[0008] A second conveying unit, fixed at a position close to one side inside the housing;

[0009] A support frame, fixed at a position close to the second conveying unit inside the housing;

[0010] The housing includes:

[0011] A lifting mechanism, fixed at the center of the inner top wall of the housing;

[0012] A position adjusting mechanism, provided with two, respectively fixed at both sides of the lifting mechanism inside the housing;

[0013] The spacing adjustment units are provided in several numbers and are respectively slidably inserted at positions close to the top of the position adjustment mechanism;

[0014] The limiting unit is fixed at the center of the position adjustment mechanism.

[0015] Furthermore: The lifting mechanism includes:

[0016] The first electric telescopic rod is fixed to the inner wall of the housing;

[0017] The first U-shaped frame is fixed to the outer wall of one end of the first electric telescopic rod;

[0018] Two first frames are respectively fixed at both ends of the first U-shaped frame.

[0019] Preferably: The position adjustment mechanism includes:

[0020] The third electric telescopic rod is fixed to the inner wall of the housing;

[0021] The second frame is fixed to the outer wall of one end of the third electric telescopic rod.

[0022] Preferably: The spacing adjustment unit includes:

[0023] The square rod is slidably inserted into the outer wall of the second frame;

[0024] The hexagon head screw is screwed on the outer wall of the square rod;

[0025] The first square plate is fixed to the outer wall of the square rod.

[0026] Preferably: The limiting unit includes:

[0027] The motor is fixed to the outer wall of the second frame;

[0028] The threaded rod rotates with the inner wall of the second frame, and one end is fixed to the rotating shaft of the motor;

[0029] The fourth U-shaped frame is screwed on the outer wall of the threaded rod;

[0030] The third frame slides on the outer wall of the fourth U-shaped frame;

[0031] The third U-shaped frame is fixed to the inner wall of the third frame;

[0032] Two circular grooves are respectively opened on both sides of the third U-shaped frame;

[0033] The second spring is fixed between the inner wall of the circular groove and the outer wall of the fourth U-shaped frame;

[0034] The second telescopic rod is fixed to the bottom of the third frame;

[0035] The second slide rail slides on the bottom of the second telescopic rod;

[0036] The U-shaped frame II is screwed onto one end of the telescopic rod II.

[0037] Preferably, the slide rail II includes:

[0038] Two threaded rods are respectively fixed on the outer walls on both sides of the slide rail II;

[0039] The square plate II is fixed between the two threaded rods.

[0040] Preferably, the U-shaped frame IV includes:

[0041] A square groove I is opened at the center of the top wall of the U-shaped frame IV;

[0042] The T-shaped frame slides inside the square groove I;

[0043] A square hole is opened on the outer wall of the T-shaped frame and is inserted and matched with the square plate I;

[0044] The spring III is fixed between the inner wall of the square groove I and the outer wall of the T-shaped frame;

[0045] A number of square grooves II are equidistantly opened on the outer walls on both sides of the U-shaped frame IV; the pitch adjustment unit includes:

[0046] The telescopic rod I is fixed on the outer wall of the square rod;

[0047] The socket is fixed on the outer wall of one end of the telescopic rod I;

[0048] The inclined block slides inside the socket and is inserted and matched with the square groove II;

[0049] The spring I is fixed between the inner wall of the socket and the outer wall of the inclined block;

[0050] The frame II includes:

[0051] The L-shaped frame is fixed on the outer wall of the frame II;

[0052] The electric telescopic rod II is fixed on one end of the L-shaped frame;

[0053] The slide rail I is fixed on one end of the electric telescopic rod II, and the outer wall of the slide rail I is slidably inserted into the outer wall of the socket.

[0054] The beneficial effects of the present utility model:

[0055] 1. By inserting the U-shaped frame II into the basin body, the basin body on the square plate II can be quickly limited, which is convenient to move the U-shaped frame II to control the basin body, so that each basin body is separated, effectively improving the working stability.

[0056] 2. By allowing the operator to adjust the position of each square rod in advance according to the position to be placed, it can be ensured that the positions of the potted plants placed in each water tank are the same, effectively improving the convenience and the accuracy of the placement position.

[0057] 3. Driven by the motor, the inserted basin body is moved to contact the T-shaped frame with the first square plate, and the first square plate is inserted into the square hole for limit. The third U-shaped frame continues to move, so that the T-shaped frame slides inside the first square groove, causing the fourth U-shaped frame to slide upward along the inside of the third frame and separate from the threaded rod. During this period, the inclined block is clamped with the second square groove to limit the fourth U-shaped frame at the current height. By driving a plurality of inserted potted plants to quickly move to the position where they need to be moved and being able to limit them, the adjustment speed of the spacing between potted plants is effectively improved, and it can ensure that the spacing between the potted plants in each water tank is the same, effectively improving the accuracy of the position placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The following further describes the present utility model with reference to the accompanying drawings.

[0059] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0060] Figure 2 is a schematic diagram of the internal structure of the housing in the present utility model;

[0061] Figure 3 is a schematic diagram of the lifting mechanism structure in the present utility model;

[0062] Figure 4 is a schematic diagram of the position adjustment mechanism structure in the present utility model;

[0063] Figure 5 is a schematic diagram of the spacing adjustment unit structure in the present utility model;

[0064] Figure 6 is a schematic diagram of the limit unit structure in the present utility model;

[0065] Figure 7 is a schematic diagram of the third U-shaped frame and the fourth U-shaped frame in the present utility model.

[0066] In the figure: 100, potted plant placement mechanism; 110, housing; 113, support frame; 120, first conveying unit; 130, second conveying unit; 200, lifting mechanism; 210, first electric telescopic rod; 211, first U-shaped frame; 212, first frame; 300, position adjustment mechanism; 310, second frame; 311, L-shaped frame; 312, second electric telescopic rod; 313, first slide rail; 320, third electric telescopic rod; 330, spacing adjustment unit; 331, square rod; 332, hexagon head screw; 333, first telescopic rod; 334, socket; 335, inclined block; 336, first spring; 337, first square plate; 340, limiting unit; 341, motor; 342, third frame; 343, second telescopic rod; 344, second U-shaped frame; 345, second slide rail; 346, second square plate; 347, threaded rod; 348, third U-shaped frame; 349, round groove; 350, second spring; 351, fourth U-shaped frame; 352, first square groove; 353, T-shaped frame; 354, square hole; 355, third spring; 356, second square groove. Detailed implementation manners

[0067] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0068] Please refer to Figures 1-7As shown in the figure, a rice batch potting device includes: a potting placement mechanism 100, the potting placement mechanism 100 includes a housing 110; a first conveying unit 120, fixed to the bottom of the housing 110; a second conveying unit 130, fixed at a position close to one side inside the housing 110; a support frame 113, fixed at a position close to the second conveying unit 130 inside the housing 110; the housing 110 includes: a lifting mechanism 200, fixed to the center of the inner top wall of the housing 110; a position adjustment mechanism 300, with two sets, respectively fixed at both sides of the lifting mechanism 200 inside the housing 110; a spacing adjustment unit 330, with several sets, respectively slidably inserted at positions close to the top of the position adjustment mechanism 300; a limiting unit 340, fixed at the center of the position adjustment mechanism 300; the lifting mechanism 200 includes: a first electric telescopic rod 210, fixed to the inner wall of the housing 110; a U-shaped frame one 211, fixed to the outer wall of one end of the first electric telescopic rod 210; two sets of frame one 212, respectively fixed at both ends of the U-shaped frame one 211; the position adjustment mechanism 300 includes: a third electric telescopic rod 320, fixed to the inner wall of the housing 110; a frame two 310, fixed to the outer wall of one end of the third electric telescopic rod 320; the spacing adjustment unit 330 includes: a square rod 331, slidably inserted into the outer wall of the frame two 310; a hexagon head screw 332, screwed onto the outer wall of the square rod 331; a first square plate 337, fixed to the outer wall of the square rod 331.

[0069] The limiting unit 340 includes: a motor 341 fixed to the outer wall of the second frame 310; a threaded rod 347 rotatably connected to the inner wall of the second frame 310 and having one end fixed to the rotating shaft of the motor 341; a U-shaped fourth frame 351 screwed onto the outer wall of the threaded rod 347; a third frame 342 slidably disposed on the outer wall of the U-shaped fourth frame 351; a U-shaped third frame 348 fixed to the inner wall of the third frame 342; two circular grooves 349 respectively formed on both sides of the U-shaped third frame 348; a second spring 350 fixed between the inner wall of the circular groove 349 and the outer wall of the U-shaped fourth frame 351; a second telescopic rod 343 fixed to the bottom of the third frame 342; a second slide rail 345 slidably disposed at the bottom of the second telescopic rod 343; a U-shaped second frame 344 screwed onto one end of the second telescopic rod 343; The second slide rail 345 includes: two threaded rods 347 respectively fixed to the outer walls on both sides of the second slide rail 345; a second square plate 346 fixed between the two threaded rods 347; The U-shaped fourth frame 351 includes: a first square groove 352 formed at the center of the top wall of the U-shaped fourth frame 351; a T-shaped frame 353 slidably disposed inside the first square groove 352; a square hole 354 formed on the outer wall of the T-shaped frame 353 and in plug-in fit with the first square plate 337; a third spring 355 fixed between the inner wall of the first square groove 352 and the outer wall of the T-shaped frame 353; a plurality of second square grooves 356 formed at equal intervals on the outer walls on both sides of the U-shaped fourth frame 351; The spacing adjustment unit 330 includes: a first telescopic rod 333 fixed to the outer wall of the square rod 331; a socket 334 fixed to the outer wall of one end of the first telescopic rod 333; an inclined block 335 slidably disposed inside the socket 334 and in plug-in fit with the second square groove 356; a first spring 336 fixed between the inner wall of the socket 334 and the outer wall of the inclined block 335; The second frame 310 includes: an L-shaped frame 311 fixed to the outer wall of the second frame 310; a second electric telescopic rod 312 fixed to one end of the L-shaped frame 311; a first slide rail 313 fixed to one end of the second electric telescopic rod 312, and the outer wall of the first slide rail 313 is slidably inserted into the outer wall of the socket 334.

[0070] Specifically, during operation, according to the position where the basin body is to be placed in the water tank, the operator turns the hexagon head screw 332 to adjust the position of each square rod 331 to the position where the basin body is to be placed, and then tightens the hexagon head screw 332 to limit the square rod 331. The first conveying unit 120 drives the water tank to be conveyed to the position directly below the housing 110. The second conveying unit 130 drives the basin body planted with rice to move to the support frame 113, and then under the extrusion of the subsequent basin body, several front basin bodies are moved onto the second square plate 346. The third electric telescopic rod 320 drives several second telescopic rods 343 to move to be inserted into the second U-shaped frame 344 and the basin body, and separates each adjacent basin body. The motor 341 drives the threaded rod 347 to rotate, driving the second telescopic rod 343 to slide on the second slide rail 345, driving the inserted basin body to move until the T-shaped frame 353 contacts the first square plate 337, and the first square plate 337 is inserted into the square hole 354 for limiting. The third U-shaped frame 348 continues to move, causing the T-shaped frame 353 to slide inside the first square groove 352, resulting in the fourth U-shaped frame 351 sliding upward along the inside of the third frame 342 to separate from the threaded rod 347. During this period, the inclined block 335 is clamped with the second square groove 356 to limit the fourth U-shaped frame 351 at the current height. When the potted plant moves to the designated position, the first electric telescopic rod 210 drives the first U-shaped frame 211 to move downward, causing the first frame 212 to move into the water tank. The threaded rod 347 drives the second square plate 346 to slide to one side and be withdrawn from the bottom of the potted plant. When the potted plant is completely separated from the second square plate 346, it slides downward to the inner bottom wall of the water tank. The third electric telescopic rod 320 drives the second U-shaped frame 344 to slide to one side to separate from the potted plant. After the potted plant is placed, the first electric telescopic rod 210 drives the first U-shaped frame 211 to return to the original position. Driven by the second electric telescopic rod 312, the inclined block 335 slides to one side to separate from the second square groove 356. Under the rebound of the second spring 350, the fourth U-shaped frame 351 adheres to the threaded rod 347 and is screwed together. The motor 341 drives the threaded rod 347 to rotate in the reverse direction, driving the second U-shaped frame 344 to return to the original position. The threaded rod 347 drives the second square plate 346 to return to the original position to perform repetitive work.

[0071] Embodiment 1

[0072] Such as Figure 2 、 Figure 4 、 Figure 6 And Figure 7As shown, in this embodiment, the position adjustment mechanism 300 includes: an electric telescopic rod three 320, fixed to the inner wall of the housing 110; a frame two 310, fixed to the outer wall of one end of the electric telescopic rod three 320; the limiting unit 340 includes: a U-shaped frame four 351, screwed onto the outer wall of the threaded rod 347; a frame three 342, sliding on the outer wall of the U-shaped frame four 351; a U-shaped frame three 348, fixed to the inner wall of the frame three 342; two circular grooves 349, respectively opened on both sides of the U-shaped frame three 348; a spring two 350, fixed between the inner wall of the circular groove 349 and the outer wall of the U-shaped frame four 351; a telescopic rod two 343, fixed to the bottom of the frame three 342; a slide rail two 345, sliding on the bottom of the telescopic rod two 343; a U-shaped frame two 344, screwed onto one end of the telescopic rod two 343.

[0073] In this embodiment, the conveying unit two 130 drives the basin planted with rice to move to the support frame 113, and then under the extrusion of the subsequent basins, several front basins are moved onto the square plate two 346. The electric telescopic rod three 320 drives several telescopic rods two 343 to move to be inserted into the U-shaped frame two 344 and the basin, and separates each adjacent basin. By inserting the U-shaped frame two 344 into the basin, the basins on the square plate two 346 can be quickly limited, facilitating the movement of the U-shaped frame two 344 to control the basins and separate each basin, effectively improving the working stability.

[0074] As Figure 5 shown, in this embodiment, the spacing adjustment unit 330 includes: a square rod 331, slidably inserted into the outer wall of the frame two 310; a hexagon head screw 332, screwed onto the outer wall of the square rod 331; a square plate one 337, fixed to the outer wall of the square rod 331.

[0075] During specific implementation, the operator twists the hexagon head screw 332 according to the position where the basin is to be placed in the water tank, adjusts the position of each square rod 331 to the position where the basin is to be placed, and then tightens the hexagon head screw 332 to limit the square rod 331. By the operator adjusting the position of each square rod 331 in advance according to the position to be placed, it can be ensured that the positions of the potted plants placed in each water tank are the same, effectively improving the convenience and the accuracy of the placement position.

[0076] Embodiment Two

[0077] As Figure 4 、 Figure 5 and Figure 7As shown, in this embodiment, the limiting unit 340 includes: a motor 341 fixed to the outer wall of the second frame 310; a threaded rod 347 rotatably connected to the inner wall of the second frame 310 and having one end fixed to the rotating shaft of the motor 341; the U-shaped frame four 351 includes: a first square groove 352 opened at the center of the top wall of the U-shaped frame four 351; a T-shaped frame 353 slidably disposed inside the first square groove 352; a square hole 354 opened on the outer wall of the T-shaped frame 353 and inserted and mated with the first square plate 337; a third spring 355 fixed between the inner wall of the first square groove 352 and the outer wall of the T-shaped frame 353; a plurality of second square grooves 356 equally spaced and opened on the outer walls on both sides of the U-shaped frame four 351; the spacing adjustment unit 330 includes: a first telescopic rod 333 fixed to the outer wall of the square rod 331; a socket 334 fixed to one end of the outer wall of the first telescopic rod 333; an inclined block 335 slidably disposed inside the socket 334 and inserted and mated with the second square groove 356; a first spring 336 fixed between the inner wall of the socket 334 and the outer wall of the inclined block 335.

[0078] During specific implementation, the motor 341 drives the threaded rod 347 to rotate, drives the second telescopic rod 343 to slide on the second slide rail 345, drives the inserted basin body to move to contact the T-shaped frame 353 and the first square plate 337, and the first square plate 337 is inserted into the square hole 354 for limiting. The U-shaped frame three 348 continues to move, so that the T-shaped frame 353 slides inside the first square groove 352, causing the U-shaped frame four 351 to slide upward along the inside of the third frame 342 and separate from the threaded rod 347. During this period, the inclined block 335 is clamped with the second square groove 356 to limit the U-shaped frame four 351 at the current height. By driving a plurality of inserted potted plants to quickly move to the position where they need to be moved and being able to limit them, the adjustment speed of the spacing between potted plants is effectively improved, and it can be ensured that the spacing between the potted plants in each water tank is the same, effectively improving the accuracy of the position placement.

[0079] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0080] The above content is only an example and explanation of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the present invention or exceed the scope defined by the claims of this patent, they should fall within the protection scope of the present invention.

Claims

1. A rice batch potting device, comprising: A potted plant placement mechanism (100), the potted plant placement mechanism (100) comprising a housing (110); A conveying unit 1 (120) is fixed to the bottom of the housing (110); The second conveying unit (130) is fixed inside the housing (110) near one side; A support frame (113) is fixed inside the housing (110) at a position close to one side of the second conveying unit (130); Characterized in that the housing (110) comprises: A lifting mechanism (200) is fixed to the top wall inside the housing (110) and is located at the center; Two position adjustment mechanisms (300) are provided and are respectively fixed inside the housing (110) and located on both sides of the lifting mechanism (200); A plurality of spacing adjustment units (330) are provided, each of which is slidably plugged into the position adjustment mechanism (300) near the top; The limiting unit (340) is fixed to the position adjustment mechanism (300) at the center.

2. A rice batch potting device according to claim 1, characterized in that: The lifting mechanism (200) comprises: An electric telescopic rod (210) is fixed to the inner wall of the housing (110); A U-shaped frame (211) is fixed to the outer wall of one end of an electric telescopic rod (210); Two frames (212) are provided and are respectively fixed at two ends of the U-shaped frame (211).

3. The rice batch potting device according to claim 2, characterized in that: The position adjustment mechanism (300) comprises: An electric telescopic rod three (320) is fixed to the inner wall of the housing (110); The second frame (310) is fixed to the outer wall of one end of the third electric telescopic rod (320).

4. The rice batch potting device according to claim 3, characterized in that: The spacing adjustment unit (330) comprises: The square rod (331) is slidably plugged into the outer wall of the second frame (310); A hexagonal head screw (332) is screwed onto the outer wall of the square rod (331); The first square plate (337) is fixed to the outer wall of the square rod (331).

5. The rice batch potting device according to claim 4, characterized in that: The limiting unit (340) comprises: A motor (341) is fixed to the outer wall of the second frame (310); A threaded rod (347) rotates with the inner wall of the second frame (310), and one end of the threaded rod is fixed to the rotating shaft of the motor (341); A U-shaped frame (351) is screwed onto the outer wall of the threaded rod (347); Frame three (342), sliding on the outer wall of U-shaped frame four (351); U-shaped frame three (348), fixed to the inner wall of frame three (342); There are two circular grooves (349), which are respectively opened on both sides of the U-shaped frame (348); Spring 2 (350) is fixed between the inner wall of the circular groove (349) and the outer wall of the U-shaped frame 4 (351); Telescopic rod 2 (343), fixed to the bottom of frame 3 (342); A second slide rail (345) slides on the bottom of the second telescopic rod (343); The second U-shaped frame (344) is screwed on one end of the second telescopic rod (343).

6. The rice batch potting device according to claim 5, characterized in that: Slide rail 2 (345) includes: Two threaded rods (347) are provided and are respectively fixed on the outer walls of both sides of the second slide rail (345); The second square plate (346) is fixed between the two threaded rods (347).

7. The rice batch potting device according to claim 6, characterized in that: U-shaped frame four (351) includes: A square groove (352) is provided at the center of the top wall of the U-shaped frame (351); A T-shaped frame (353) slides inside the square groove (352); A square hole (354) is provided on the outer wall of the T-shaped frame (353) and is plugged into and matched with the square plate (337); Spring three (355), fixed between the inner wall of square groove one (352) and the outer wall of T-shaped frame (353); A plurality of square grooves (356) are provided and are evenly spaced and arranged on the outer walls of both sides of the U-shaped frame (351); The spacing adjustment unit (330) comprises: A telescopic rod (333) is fixed to the outer wall of the square rod (331); A socket (334) is fixed to the outer wall of one end of the telescopic rod (333); The inclined block (335) slides on the inner wall of the socket (334) and is plugged into and matched with the second square groove (356); Spring 1 (336), fixed between the inner wall of the socket (334) and the outer wall of the inclined block (335); Frame 2 (310) includes: An L-shaped frame (311) fixed to the outer wall of the second frame (310); The second electric telescopic rod (312) is fixed to one end of the L-shaped frame (311); The slide rail 1 (313) is fixed to one end of the electric telescopic rod 2 (312), and the outer wall of the slide rail 1 (313) is slidably plugged into the outer wall of the socket (334).