Soil sample treatment device with automatic filling and conveying functions

Abstract

The invention relates to the technical field of soil sample treatment, in particular to a soil sample treatment device with automatic filling and conveying functions, which comprises a frame body and a support frame arranged at one end of the frame body, and a stirring mechanism for uniformly scattering a soil sample is arranged on the support frame. A treatment mechanism used for treating a soil sample is arranged at one end, far away from the supporting frame, of the frame body, a conveying mechanism used for conveying the scattered soil sample into the treatment mechanism is further arranged on the frame body, the stirring mechanism comprises a stirring box installed at the top of the supporting frame, and inclined planes are arranged at the two ends of the bottom wall of the stirring box correspondingly; the supporting guide rails are slidably arranged at four corners of the stirring box and are fixed with four corners of the top of the supporting frame. The soil sample treatment device has the functions of high efficiency, rapidness and automatic filling, the soil sample treatment efficiency can be greatly improved, the labor intensity of workers is reduced, the labor cost is reduced, the situation that the treatment efficiency is affected due to time and labor consumption during soil sample treatment at present is avoided, and the practicability of the soil sample treatment device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sample processing, and in particular to a soil sample processing device with automatic filling and conveying functions. Background Art

[0002] The soil in the railway laying area needs to be sampled and analyzed regularly, which is a very important part of ensuring the stable and safe operation of the railway. However, the current sampling of soil for railway laying will produce a large number of soil samples. These soil samples usually need to be broken up and refined first, and then processed to obtain soil samples that can be tested. However, these operations are usually carried out by manual cooperation with machinery, which is not only time-consuming and labor-intensive, but also increases the labor intensity of the staff, reduces the efficiency of soil sample processing, makes it difficult to meet the needs of rapid processing, and may also have an adverse impact on my country's railway construction and operation safety. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a soil sample processing device with automatic loading and conveying function, which solves the problem that the prior art soil sample processing is time-consuming and labor-intensive, increases the labor intensity of the staff, and reduces the processing efficiency.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A soil sample processing device with automatic loading and conveying function comprises a frame and a support frame arranged at one end of the frame, the support frame is provided with a stirring mechanism for evenly breaking up the soil sample, a processing mechanism for processing the soil sample is arranged at the end of the frame away from the support frame, the frame is also provided with a conveying mechanism for transporting the broken soil sample to the processing mechanism, the stirring mechanism comprises a stirring box installed on the top of the support frame, and the two ends of the bottom wall of the stirring box are respectively arranged as inclined surfaces, support guide rails slidably arranged at the four corners of the stirring box and fixed to the four corners of the top of the support frame, and spiral blades arranged at the two ends inside the stirring box and rotating with the stirring box through bearings, and a transmission component for driving the two spiral blades to rotate while driving the stirring box to reciprocate is arranged on the side of the top of the support frame away from the frame.

[0006] As a further optimization scheme of the present invention, the transmission assembly includes a movable bracket fixedly arranged on one side of the mixing box, and a connecting bracket arranged on the top of the movable bracket, and the two ends of the connecting bracket are respectively fixedly connected to two corresponding support guide rails, a limiting groove is integrally formed on the top of one side of the movable bracket, and racks fixed to the movable bracket are respectively provided on both sides of the limiting groove, and an incomplete gear is meshed between the two racks. A worm one with one end fixed to the incomplete gear is rotatably provided on the connecting bracket through a bearing, and a worm wheel one is meshed on one side of the worm one, and a rotating shaft is slidably provided at the axis center of the worm wheel one.

[0007] As a further optimization scheme of the present invention, connecting shafts that rotate with the mixing box through bearing seats are fixed at both ends of the rotating shaft, and worm gears 2 are fixed at one end of each of the two connecting shafts. Worm gears 2 are meshed with each other on one side of the two worm gears 2, and one end of the spiral blade passes through one side of the mixing box and is fixedly connected to worm gear 2.

[0008] As a further optimization solution of the present invention, a servo motor for driving the worm gear 1 to rotate is fixedly mounted on the connecting bracket, and a bevel gear set for driving the worm gear 1 is arranged on the output shaft of the servo motor.

[0009] As a further optimization scheme of the present invention, the processing mechanism includes a processing box arranged at one end of the frame away from the support frame, and a partition detachably arranged on the inner side of the processing box, a temperature and pressure sensor is fixedly installed on the top of the partition, an electromagnet is arranged on the temperature and pressure sensor, a heating wire is also fixed at the bottom of the partition, and a hot air blower is also fixedly installed on the inner wall of the processing box.

[0010] As a further optimization solution of the present invention, a controller is fixed to one side of the outside of the processing box, the controller is electrically connected to the temperature and pressure sensor, and the temperature and pressure sensor is electrically connected to the electromagnet, the heating wire and the hot air blower.

[0011] As a further optimization scheme of the present invention, the conveying mechanism includes a slide rail bracket fixedly installed on the top of the frame, and a magnetic conveying seat arranged on the slide rail bracket, and the top of the magnetic conveying seat is magnetically connected to a plurality of equally spaced iron buckets filled with soil.

[0012] As a further optimization scheme of the present invention, a sliding block that slides with the slide rail bracket is fixed to the bottom of the magnetic transfer seat, and a threaded horizontal axis is rotatably arranged on the inner side of the slide rail bracket through a bearing, and the threaded horizontal axis passes through the sliding block and is threadedly connected to it.

[0013] As a further optimization solution of the present invention, a motor 1 is fixedly installed at one end of the bottom of the slide rail bracket, and the output shaft of the motor 1 is provided with a gear set that is transmission-connected to one end of the threaded horizontal shaft.

[0014] By means of the above technical solution, the present invention provides a soil sample processing device with automatic loading and conveying function, which has at least the following beneficial effects compared with the prior art:

[0015] 1. The present invention realizes automatic processing of granulated soil samples by arranging a stirring mechanism, a conveying mechanism and a processing mechanism. The soil sample added to the stirring box is evenly broken up and granulated by the stirring mechanism, and the conveying mechanism transports the broken up soil sample to the processing mechanism for processing operation. It has the functions of high efficiency, rapidity and automatic loading, which can greatly improve the efficiency of soil sample processing, reduce the labor intensity of staff, reduce labor costs, and avoid the current situation where time-consuming and labor-intensive soil sample processing affects processing efficiency.

[0016] 2. The present invention drives the two spiral blades to rotate and the mixing box to reciprocate at the same time. The soil samples to be processed are added from both sides of the top of the mixing box respectively. The two spiral blades rotate and the mixing box reciprocates at the same time, so that the soil samples are crushed more evenly and loosely in granular form, which is convenient for filling and also helps subsequent processing, thereby improving the practicality of the soil sample processing device.

[0017] 3. The present invention provides an iron bucket for holding soil samples, and the magnetic conveying seat can absorb the iron bucket to prevent the soil samples from relative movement during the transmission process, thereby ensuring the stability of the iron bucket and the magnetic conveying seat during the soil sample filling process. At the same time, the sliding block slides on the inner side of the slide rail bracket, which can ensure the stability of the soil sample during transportation and reduce the probability of soil sample spilling.

[0018] 4. The present invention processes the soil sample transported to the processing box by setting up a processing mechanism. The temperature of the heating wire can be monitored and adjusted in real time by using a temperature and pressure sensor, thereby controlling the temperature of the soil sample. The electromagnet can fix the iron bucket containing the soil to prevent the soil sample from spilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the transmission assembly of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the processing mechanism of the present invention;

[0025] Figure 6It is a system control flow chart of the processing mechanism of the present invention.

[0026] In the figure: 1. frame; 2. support frame;

[0027] 3. Mixing mechanism; 31. Mixing box; 32. Support rail; 33. Spiral blade;

[0028] 34. Transmission assembly; 340. Servo motor; 341. Movable bracket; 342. Connecting bracket; 343. Rack; 344. Incomplete gear; 345. Worm 1; 346. Worm wheel 1; 347. Rotating shaft; 348. Connecting shaft; 349. Worm wheel 2;

[0029] 4. Processing mechanism; 41. Processing box; 42. Partition; 43. Temperature and pressure sensor; 44. Electromagnet; 45. Heating wire; 46. Hot air blower; 47. Controller;

[0030] 5. Conveying mechanism; 51. Slide rail bracket; 52. Magnetic conveying seat; 53. Iron bucket for soil; 54. Sliding block; 55. Threaded horizontal axis; 56. Motor 1. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] First embodiment

[0033] At present, it is necessary to sample the soil for railway laying. The sampled soil needs to be broken up and refined first, and then heated before testing. Since the soil treatment process is usually carried out manually with machinery, it takes a longer time and the treatment efficiency is still low. In order to improve the efficiency of soil sample treatment, reduce the labor intensity of staff and reduce labor costs, refer to Figure 1 - Figure 6 The present embodiment provides a soil sample processing device with automatic loading and conveying functions, which is composed of a frame 1, a support frame 2, a stirring mechanism 3, a processing mechanism 4 and a conveying mechanism 5. The support frame 2 is arranged at one end of the frame 1, and the stirring mechanism 3 is arranged on the support frame 2 for evenly breaking up the soil sample. The support frame 2 and the stirring mechanism 3 form a whole, and the position of the support frame 2 at the end of the frame 1 can be moved according to actual use requirements. The processing mechanism 4 is arranged at one end of the frame 1 away from the support frame 2 and is used for heating the soil sample. The conveying mechanism 5 is arranged on the frame 1 and is also used for transporting the broken soil sample to the processing mechanism 4.

[0034] In order to make the soil sample crushed more evenly and loosely, and in granular form for easy filling, the stirring mechanism 3 includes a stirring box 31 installed on the top of the support frame 2, and the two ends of the bottom wall of the stirring box 31 are respectively set to inclined surfaces. The two inclined surfaces can prevent the soil sample from falling into the corners of the inner wall of the stirring box 31 and being difficult to clean. Support guide rails 32 are slidably set at the four corners of the stirring box 31 and fixed to the four corners of the top of the support frame 2, and spiral blades 33 are set at both ends of the inside of the stirring box 31 and rotate with the stirring box 31 through bearings. The soil samples to be processed are added from both sides of the top of the stirring box 31. When the spiral blades 33 rotate, the soil sample is crushed and pushed into the middle position of the stirring box 31. A transmission component 34 is set on the side of the top of the support frame 2 away from the frame body 1 for driving the two spiral blades 33 to rotate and driving the stirring box 31 to reciprocate.

[0035] In order to prevent the soil sample from moving relative to each other during the transmission process, ensure the stability of the soil sample transportation process and reduce the probability of soil sample spilling, the transmission mechanism 5 includes a slide rail bracket 51 fixedly installed on the top of the frame 1, and a magnetic transmission seat 52 arranged on the slide rail bracket 51, and the top of the magnetic transmission seat 52 is magnetically connected to a plurality of equally spaced iron buckets 53 for filling soil, and a sliding block 54 sliding with the slide rail bracket 51 is fixed at the bottom of the magnetic transmission seat 52, and a threaded horizontal shaft 55 is rotatably arranged on the inner side of the slide rail bracket 51 through a bearing, and the threaded horizontal shaft 55 passes through the sliding block 54 and is threadedly connected to it, and a motor 56 is fixedly installed at one end of the bottom of the slide rail bracket 51, and the output shaft of the motor 56 is provided with a gear set drivingly connected to one end of the threaded horizontal shaft 55, and the motor 56 is arranged as a forward and reverse motor, which can drive the sliding block 54 to reciprocate.

[0036] After the soil sample in the mixing box 31 is mixed and crushed, the motor 56 is started, and the motor 56 starts to rotate forward. The output shaft drives the threaded horizontal shaft 55 to move through the gear set. The threaded horizontal shaft 55 rotates while driving the sliding block 54 to slide on the slide rail bracket 51. The sliding block 54 drives the magnetic transfer seat 52 and the soil iron bucket 53 to move. The soil iron bucket 53 moves into the mixing box 31 and can be automatically filled with the soil sample. Then the motor 56 is started again, and the motor 56 starts to reverse, driving the soil iron bucket 53 to move in the direction of the processing mechanism 4 through transmission.

[0037] In order to monitor and adjust the temperature of the heating wire 45 in real time, and then control the temperature of the soil sample, during soil testing, it is usually necessary to adjust the soil sample to the same temperature condition to reduce the interference of temperature on the result. The processing mechanism 4 includes a processing box 41 arranged at the end of the frame 1 away from the support frame 2, and a partition 42 detachably arranged on the inner side of the processing box 41, a temperature and pressure sensor 43 is fixedly installed on the top of the partition 42, an electromagnet 44 is arranged on the temperature and pressure sensor 43, a heating wire 45 is also fixed on the bottom of the partition 42, and a hot air blower 46 is also fixedly installed on the inner wall of the processing box 41. The heating wire 45 can heat the soil sample, and the hot air blower 46 can also heat the soil sample to ensure heating efficiency. A controller 47 is fixed on the outer side of the processing box 41, and the controller 47 is electrically connected to the temperature and pressure sensor 43. The temperature and pressure sensor 43 is electrically connected to the electromagnet 44, the heating wire 45 and the hot air blower 46.

[0038] The soil-filled iron bucket 53 containing the soil sample is sent into the processing box 41, and the electromagnet 44 is started through the controller 47 to adsorb the magnetic transfer seat 52 onto the electromagnet 44, thereby fixing the soil-filled iron bucket 53, and then the heating wire 45 and the hot air blower 46 are started at the same time to heat the soil sample. At the same time, the temperature of the soil sample is monitored by the temperature and pressure sensor 43 and adjusted to a suitable detection temperature.

[0039] Second embodiment

[0040] In order to drive the two spiral blades 33 to rotate at the same time, the mixing box 31 is also driven to reciprocate. Figure 3 In this embodiment, the transmission assembly 34 includes a movable bracket 341 fixedly arranged on one side of the mixing box 31, and a connecting bracket 342 arranged on the top of the movable bracket 341, and the two ends of the connecting bracket 342 are respectively fixedly connected to the two corresponding support rails 32, and a limiting groove is integrally formed on the top of one side of the movable bracket 341, and racks 343 fixed to the movable bracket 341 are respectively provided on both sides of the limiting groove, and an incomplete gear 344 is meshed between the two racks 343. When the incomplete gear 344 rotates, it drives the two racks 343 to reciprocate, thereby driving the movable bracket 341 to start reciprocating motion, and the movable bracket 341 drives the mixing box 31 to reciprocate.

[0041] A worm 1 345 having one end fixed to the incomplete gear 344 is rotatably provided on the connecting bracket 342 through a bearing. The connecting bracket 342 is kept in a fixed state by supporting the guide rail 32. A worm wheel 1 346 is meshedly provided on one side of the worm 1 345. A rotating shaft 347 is slidably provided at the axis center of the worm wheel 1 346. The worm wheel 1 346 can drive the rotating shaft 347 to rotate, and the rotating shaft 347 can slide inside the worm wheel 1 346. Connecting shafts 348 that rotate with the mixing box 31 through a bearing seat are respectively fixed at both ends of the rotating shaft 347. Worm 2 is respectively fixed at one end of the two connecting shafts 348. Worm wheels 2 349 are respectively meshedly provided on one side of the two worm wheels 2. One end of the spiral blade 33 passes through one side of the mixing box 31 and is fixedly connected to the worm wheel 2 349. A servo motor 340 for driving the worm 1 345 to rotate is fixedly installed on the connecting bracket 342. A bevel gear group that drives the worm 1 345 is provided on the output shaft of the servo motor 340.

[0042] By starting the servo motor 340, the output shaft of the servo motor 340 drives the worm 1 345 to rotate through the bevel gear set, the worm 1 345 drives the worm wheel 1 346 meshing with it to rotate, the worm wheel 1 346 drives the rotating shaft 347 of its axis to rotate, the rotating shaft 347 drives the connecting shafts 348 at both ends to start rotating, the two connecting shafts 348 respectively drive the worm 2 at one end to start rotating, the worm 2 drives the worm wheel 2 349 meshing with it to rotate, the worm wheel 2 349 drives the spiral blade 33 at its axis to start rotating, the two spiral blades 33 rotate at the same time, and the soil samples at both ends inside the mixing box 31 are evenly crushed and scattered.

[0043] The worm 345 drives the incomplete gear 344 at one end thereof to rotate, and the incomplete gear 344 drives the racks 343 on the upper and lower sides of the limiting groove to reciprocate, and the racks 343 drive the movable bracket 341 to start reciprocating motion, and the movable bracket 341 drives the mixing box 31 to reciprocate, and the mixing box 31 shakes the soil sample inside it evenly, so that the scattered soil sample is evenly mixed in the mixing box 31.

[0044] During use of the soil sample processing device, the soil samples to be processed are first added from both sides of the top of the mixing box 31, and then the servo motor 340 is started. The output shaft of the servo motor 340 drives the worm 1 345 to rotate through the bevel gear set, and the worm 1 345 drives the worm wheel 1 346 meshing with it to rotate, and the worm wheel 1 346 drives the rotating shaft 347 of its axis to rotate, and the rotating shaft 347 drives the connecting shafts 348 at both ends to start rotating, and the two connecting shafts 348 respectively drive the worm 2 at one end to start rotating, and the worm 2 drives the worm wheel 2 349 meshing with it to rotate. The worm gear 349 rotates, and the spiral blade 33 at its axis starts to rotate. The two spiral blades 33 rotate at the same time to evenly crush and scatter the soil samples at both ends of the mixing box 31. At the same time, the worm gear 345 drives the incomplete gear 344 at one end to rotate, and the incomplete gear 344 drives the racks 343 on the upper and lower sides of the limiting groove to reciprocate. The racks 343 drive the movable bracket 341 to start reciprocating motion, and the movable bracket 341 drives the mixing box 31 to reciprocate. The mixing box 31 shakes the soil sample inside it evenly, so that the scattered soil sample is evenly mixed in the mixing box 31.

[0045] Then start the motor 56, the motor 56 starts to rotate forward, and its output shaft drives the threaded horizontal shaft 55 to move through the gear set. The threaded horizontal shaft 55 rotates and drives the sliding block 54 to slide on the slide rail bracket 51. The sliding block 54 drives the magnetic suction conveying seat 52 and the soil iron bucket 53 to move. The soil iron bucket 53 moves into the mixing box 31, and the soil iron bucket 53 can be automatically filled with soil samples. Then start the motor 56 again, and the motor 56 starts to reverse. The soil iron bucket 53 is transported to the processing box 41 through the above transmission. Finally, the electromagnet 44 is started through the controller 47, and the magnetic suction conveying seat 52 is adsorbed on the electromagnet 44, thereby fixing the soil iron bucket 53. Then, the heating wire 45 and the hot air blower 46 are started at the same time to heat the soil sample. At the same time, the temperature of the soil sample is monitored by the temperature and pressure sensor 43 and adjusted to a suitable detection temperature to obtain a processed soil sample.

[0046] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil sample processing device with automatic loading and conveying function, comprising a frame (1) and a support frame (2) arranged at one end of the frame (1), characterized in that: The support frame (2) is provided with a stirring mechanism (3) for evenly breaking up the soil sample, and a processing mechanism (4) for processing the soil sample is provided at one end of the frame (1) away from the support frame (2). The frame (1) is also provided with a conveying mechanism (5) for conveying the broken up soil sample to the processing mechanism (4); The stirring mechanism (3) comprises a stirring box (31) mounted on the top of the support frame (2), and the two ends of the bottom wall of the stirring box (31) are respectively arranged as inclined surfaces, support guide rails (32) are slidably arranged at the four corners of the stirring box (31) and fixed to the four corners of the top of the support frame (2), and spiral blades (33) are arranged at the two ends inside the stirring box (31) and rotate with the stirring box (31) through bearings, and a transmission component (34) is arranged on the side of the top of the support frame (2) away from the frame body (1) for driving the two spiral blades (33) to rotate and drive the stirring box (31) to reciprocate.

2. The soil sample processing device with automatic loading and conveying function according to claim 1 is characterized in that: The transmission assembly (34) comprises a movable bracket (341) fixedly arranged on one side of the mixing box (31), and a connecting bracket (342) arranged on the top of the movable bracket (341), and the two ends of the connecting bracket (342) are respectively fixedly connected to two corresponding support rails (32), a limiting groove is integrally formed on the top of one side of the movable bracket (341), and racks (343) fixed to the movable bracket (341) are respectively arranged on both sides of the limiting groove, and an incomplete gear (344) is meshed between the two racks (343), and a worm (345) with one end fixed to the incomplete gear (344) is rotatably arranged on the connecting bracket (342) through a bearing, and a worm wheel (346) is meshed on one side of the worm (345), and a rotating shaft (347) is slidably arranged at the axis center of the worm wheel (346).

3. The soil sample processing device with automatic loading and conveying function according to claim 2 is characterized in that: The two ends of the rotating shaft (347) are respectively fixed with connecting shafts (348) that rotate with the mixing box (31) through the bearing seat, and two worms are respectively fixed at one end of the two connecting shafts (348), and one side of the two worms is respectively meshed with a second worm wheel (349), and one end of the spiral blade (33) passes through one side of the mixing box (31) and is fixedly connected to the second worm wheel (349).

4. The soil sample processing device with automatic loading and conveying function according to claim 2 is characterized in that: A servo motor (340) for driving the worm gear 1 (345) to rotate is fixedly mounted on the connecting bracket (342), and a bevel gear set for driving the worm gear 1 (345) is arranged on the output shaft of the servo motor (340).

5. The soil sample processing device with automatic loading and conveying function according to claim 1 is characterized in that: The processing mechanism (4) comprises a processing box (41) arranged at one end of the frame (1) away from the support frame (2), and a partition (42) detachably arranged on the inner side of the processing box (41), a temperature and pressure sensor (43) is fixedly installed on the top of the partition (42), an electromagnet (44) is arranged on the temperature and pressure sensor (43), a heating wire (45) is also fixed on the bottom of the partition (42), and a hot air blower (46) is also fixedly installed on the inner wall of the processing box (41).

6. The soil sample processing device with automatic loading and conveying function according to claim 5, characterized in that: A controller (47) is fixed to one side of the outside of the processing box (41), and the controller (47) is electrically connected to the temperature and pressure sensor (43), and the temperature and pressure sensor (43) is electrically connected to the electromagnet (44), the heating wire (45) and the hot air blower (46).

7. The soil sample processing device with automatic loading and conveying function according to claim 1 is characterized in that: The conveying mechanism (5) comprises a slide rail bracket (51) fixedly mounted on the top of the frame (1), and a magnetic conveying seat (52) arranged on the slide rail bracket (51), wherein the top of the magnetic conveying seat (52) is magnetically connected to a plurality of equally spaced iron buckets (53) for filling soil.

8. The soil sample processing device with automatic loading and conveying function according to claim 7, characterized in that: A sliding block (54) that slides with the slide rail bracket (51) is fixed at the bottom of the magnetic transfer seat (52), and a threaded horizontal shaft (55) is rotatably arranged on the inner side of the slide rail bracket (51) through a bearing, and the threaded horizontal shaft (55) passes through the sliding block (54) and is threadedly connected thereto.

9. The soil sample processing device with automatic loading and conveying function according to claim 8, characterized in that: A motor 1 (56) is fixedly mounted at one end of the bottom of the slide rail bracket (51), and the output shaft of the motor 1 (56) is provided with a gear set which is transmission-connected to one end of the threaded horizontal shaft (55).

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