A comprehensive laboratory test bench

Abstract

The present invention discloses a laboratory comprehensive experimental table, which relates to the technical field of experimental table equipment. The working surface of the table body is coated with a Teflon coating, and a bottom plate is arranged at the top of the table body. The top of the bottom plate is symmetrically fixedly connected with a mounting frame, and a support plate is arranged on the mounting frame. The height of the support plate is adjusted by an adjustment mechanism, and the bottom plate is installed on the table body by the mounting mechanism. The present invention arranges an adjustment mechanism, rotates a rotating block to drive the fixed block to move out of a fixed groove, cancels the fixation of a movable seat, and then pushes the movable seat to slide in the movable groove to adjust the height of the support plate; when the height of the support plate is adjusted, the protective plate rotates, and the protective plate rotates upward to block the two sides of the support plate, so as to facilitate the rapid adjustment of the height of the support plate, and in the adjustment process, the protective plate is automatically rotated to the two sides of the support plate to block the two sides of the support plate to prevent the experimental vessels on the support plate from slipping during the adjustment of the support plate.

Description

Technical Field

[0001] The invention relates to the technical field of laboratory bench equipment, in particular to a comprehensive laboratory bench. Background Art

[0002] When the laboratory bench is used, a display rack is usually fixedly installed on the laboratory bench, and the experimental instruments and the like can be stored on the tray of the display rack. However, the display rack occupies the desktop space and cannot be conveniently disassembled and assembled, resulting in limited use of the laboratory bench. In addition, the display rack in the prior art is set as a multi-layer structure, and the intervals between the multiple layers are fixed, which is inconvenient for placing objects of different heights. In order to facilitate the installation and adjustment of the display rack, a comprehensive laboratory bench is provided. Summary of the invention

[0003] The purpose of the present invention is to provide a comprehensive laboratory test bench for facilitating the installation and adjustment of a display rack.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laboratory comprehensive experimental table, comprising a table body, a working surface of the table body is coated with a Teflon coating, a bottom plate is arranged at the top of the table body, a mounting frame is symmetrically fixedly connected to the top of the bottom plate, a movable support plate is arranged on the mounting frame, the height of the support plate is adjusted by an adjustment mechanism, and the bottom plate is mounted on the table body by the mounting mechanism; the adjustment mechanism comprises a movable groove, the movable groove is arranged on the outer wall of the mounting frame, both ends of the support plate are fixedly connected to a movable seat, the movable seat is slidably connected to the inner wall of the movable groove, a vertical plate is fixedly connected to the outer wall of the mounting frame, a fixing groove is arranged on the outer wall of the vertical plate, one end of the movable seat is rotatably connected to a rotating block, one end of the rotating block is fixedly connected to a threaded rod, the outer wall of the threaded rod is connected to a displacement frame, both ends of the displacement frame are rotatably connected to connecting rods, one end of the connecting rod is rotatably connected to a fixed block, the fixed block is symmetrically slidably connected to the inside of the movable seat and extends out of the movable seat.

[0005] As a further solution of the present invention: the adjusting mechanism also includes a protective plate, which is rotatably connected to the outer wall of the movable seat through a rotating shaft, and the protective plate is symmetrically arranged on both sides of the support plate, one end of the rotating shaft is fixedly connected to the first spur gear, and the first spur gear is rotatably connected to the interior of the movable seat, and the interior of the movable seat is located at the outer wall of the first spur gear and is slidably connected to a toothed plate, the bottom end of the toothed plate is fixedly connected to a first spring, the outer wall of the toothed plate is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a sliding block, the outer wall of the sliding block is fixedly connected to a round rod, one end of the threaded rod is fixedly connected to a rotating disk, the outer wall of the rotating disk is provided with a circular hole, and the round rod is located in the circular hole.

[0006] As a further solution of the present invention: the mounting mechanism includes a storage groove, which is symmetrically opened at the top of the platform body, and the inner walls of the storage groove are symmetrically provided with card grooves at both ends, the top of the inner wall of the storage groove is rotatably connected with a mounting plate, the outer wall of the mounting plate is fixedly connected with two connecting plates, the two connecting plates are clamped to form a connecting groove, the outer wall of the mounting plate is provided with a rotating groove, and the inner wall of the rotating groove is rotatably connected with a rotating column.

[0007] As a further solution of the present invention: the mounting mechanism also includes a square block, one end of the rotating column is fixedly connected to the square block, the outer wall of the rotating column is fixedly connected to the second spur gear, the interior of the mounting plate is slidably connected with a clamping block located at the top of the second spur gear, one end of the clamping block extends to one end of the mounting plate, a second spring is connected between the clamping block and the mounting plate, the interior of the rotating column is slidably connected with a positioning block, one end of the positioning block extending out of the rotating column is provided with an inclined surface, and a third spring is connected between the positioning block and the rotating column.

[0008] As a further solution of the present invention: a threaded hole is provided on the outer wall of the displacement frame, the threaded hole matches the threaded rod, and the outer wall of one end of the fixing block is fitted with the inner wall of the fixing groove.

[0009] As a further solution of the present invention: the outer wall of the movable seat is fitted with the inner wall of the movable groove, the inner wall of the movable groove is fixedly connected with a limiting column passing through the movable seat, and the outer wall of the movable seat is provided with a limiting hole for sliding along the limiting column.

[0010] As a further solution of the present invention: the outer wall of the sliding block fits with the inner wall of the sliding groove, and the outer wall of the round rod fits with the inner wall of the round hole.

[0011] As a further solution of the present invention: first tooth grooves are provided on both sides of the outer wall of the tooth plate, and the first tooth grooves are respectively meshed with the first spur gears on both sides.

[0012] As a further solution of the present invention: the outer wall of the clamping block is provided with a second tooth groove, the second tooth groove is meshed with the second spur gear, the outer wall of one end of the clamping block is fitted with the inner wall of the clamping groove, and the mounting plate is rotatably connected to the receiving groove through a mounting shaft.

[0013] As a further solution of the present invention: the inner wall of the connecting groove is in contact with the outer wall of the bottom plate, and one end of the positioning block is located in the inner cavity of the connecting groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting an adjustment mechanism, the rotating block is rotated to drive the fixed block to move out of the fixed groove, cancel the fixation of the movable seat, and then the movable seat is pushed to slide in the movable groove to adjust the height of the pallet; when the height of the pallet is adjusted, the protective plate is rotated, and the protective plate is rotated upward to cover both sides of the pallet; this design facilitates rapid adjustment of the height of the pallet, and during the adjustment process, the protective plate is automatically rotated to both sides of the pallet to cover both sides of the pallet to prevent the experimental vessels on the pallet from slipping during the adjustment of the pallet.

[0016] 2. By setting up the installation mechanism, use the tool to extend into the rotating groove, drive the rotating column to rotate through the square block, the rotating column rotates to drive the second spur gear to rotate, the second spur gear rotates to drive the card block to move, move the card block out of the card slot, cancel the fixation of the mounting plate, then rotate the mounting plate out of the storage slot, loosen the rotating column, then insert the bottom plate into the connecting groove, two positioning blocks position the bottom plate in the connecting groove, and fix the bottom plate; this design facilitates the rapid installation of the display rack, and when the display rack is not in use, the display rack can be quickly disassembled to increase the use space of the table panel, so as to facilitate experimental operations while ensuring the flatness of the table surface.

[0017] 3. The working surface of the table is coated with Teflon coating. Teflon is a high molecular polymer made by polymerization of tetrafluoroethylene as a monomer. It has excellent heat resistance and cold resistance. This material is resistant to acids and alkalis, and various organic solvents. It is almost insoluble in all solvents. At the same time, polytetrafluoroethylene is resistant to high temperatures. This design facilitates cleaning of the surface of the table. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the mounting frame and the supporting plate of the present invention;

[0020] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 It is a schematic diagram of the internal structure of the movable seat of the present invention;

[0022] Figure 5 It is a schematic diagram of the installation structure of the tooth plate and the first spur gear of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the installation mechanism of the present invention;

[0024] Figure 7 For the present invention Figure 6The enlarged view of point B in the middle;

[0025] Figure 8 It is a structural schematic diagram of the mounting plate of the present invention;

[0026] Fig. 9 It is a schematic diagram of the internal structure of the mounting plate of the present invention;

[0027] Fig.10 It is a schematic diagram of the internal structure of the rotating column of the present invention.

[0028] In the figure: 1, platform; 2, mounting frame; 3, support plate; 4, adjustment mechanism; 401, movable groove; 402, movable seat; 403, vertical plate; 404, fixed groove; 405, rotating block; 406, threaded rod; 407, displacement frame; 408, connecting rod; 409, fixed block; 410, protective plate; 411, first straight gear; 412, tooth plate; 413, first spring; 414, slide groove; 415, slider; 4 16. round rod; 417. rotating disk; 418. round hole; 5. mounting mechanism; 501. storage slot; 502. clamping slot; 503. mounting plate; 504. connecting plate; 505. connecting slot; 506. rotating slot; 507. rotating column; 508. square block; 509. second spur gear; 510. clamping block; 511. second spring; 512. positioning block; 513. third spring; 6. limiting column; 7. bottom plate. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0031] See also Figures 1 to 10 In an embodiment of the present invention, a laboratory comprehensive experimental table includes a table body 1, a working surface of the table body 1 is coated with a Teflon coating, a bottom plate 7 is arranged on the top of the table body 1, a mounting frame 2 is symmetrically fixedly connected to the top of the bottom plate 7, a movable support plate 3 is arranged on the mounting frame 2, the height of the support plate 3 is adjusted by an adjusting mechanism 4, and the bottom plate 7 is mounted on the table body 1 by a mounting mechanism 5.

[0032] In this embodiment: the working surface of the table 1 is coated with a Teflon coating. Teflon is a high molecular polymer obtained by polymerization of tetrafluoroethylene as a monomer. It has excellent heat resistance and cold resistance. This material is resistant to acids and alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene is resistant to high temperatures. This design can facilitate the cleaning operation of the surface of the table 1.

[0033] Please refer to Figures 2 to 5The adjusting mechanism 4 includes a movable groove 401, which is provided on the outer wall of the mounting frame 2. Both ends of the support plate 3 are fixedly connected with a movable seat 402, and the movable seat 402 is slidably connected to the inner wall of the movable groove 401. The outer wall of a mounting frame 2 is fixedly connected with a vertical plate 403, and the outer wall of the vertical plate 403 is provided with a fixed groove 404. One end of the movable seat 402 is rotatably connected with a rotating block 405, and one end of the rotating block 405 is fixedly connected with a threaded rod 406. The outer wall of the threaded rod 406 is connected with a displacement frame 407. Both ends of the displacement frame 407 are rotatably connected with connecting rods 408, and one end of the connecting rod 408 is rotatably connected with a fixed block 409. The fixed block 409 is symmetrically slidably connected to the inside of the movable seat 402 and extends out of the movable seat 402. The adjusting mechanism 4 also includes The protective plate 410 is rotatably connected to the outer wall of the movable seat 402 through a rotating shaft, and the protective plate 410 is symmetrically arranged on both sides of the support plate 3. One end of the rotating shaft is fixedly connected to the first spur gear 411, and the first spur gear 411 is rotatably connected to the inside of the movable seat 402. The inside of the movable seat 402 is located at the outer wall of the first spur gear 411 and is slidably connected to a toothed plate 412, and the bottom end of the toothed plate 412 is fixedly connected to a first spring 413, and the outer wall of the toothed plate 412 is provided with a slide groove 414, and the inner wall of the slide groove 414 is slidably connected to a slider 415, and the outer wall of the slider 415 is fixedly connected to a round rod 416, and one end of the threaded rod 406 is fixedly connected to a rotating disk 417, and the outer wall of the rotating disk 417 is provided with a round hole 418, and the round rod 416 is located in the round hole 418.

[0034] In this embodiment: when adjusting the height of the support plate 3, the rotating block 405 is rotated, and the rotating block 405 rotates to drive the threaded rod 406 to rotate, and the threaded rod 406 rotates to drive the displacement frame 407 to move, and the displacement frame 407 moves through the connecting rod 408 to drive the fixed block 409 to move, and the fixed block 409 moves out of the fixed groove 404, canceling the fixation of the movable seat 402, and then pushing the movable seat 402 to slide in the movable groove 401 to adjust the height of the support plate 3.

[0035] When the height of the support plate 3 is adjusted, the threaded rod 406 rotates to drive the rotating disk 417 to rotate, and the rotating disk 417 rotates to drive the slider 415 to slide in the slide groove 414 through the round rod 416. The displacement of the slider 415 drives the tooth plate 412 to move, causing the first spring 413 to be squeezed. The displacement of the tooth plate 412 drives the first spur gear 411 to rotate, and the rotation of the first spur gear 411 drives the protective plate 410 to rotate. The protective plate 410 rotates upward to block the two sides of the support plate 3 to prevent the experiment on the support plate 3 from being damaged during the adjustment of the support plate 3. The vessel slips off; when the adjustment is completed, the rotating block 405 is released, and the tooth plate 412 is reset by the elastic force of the first spring 413. The reset of the tooth plate 412 drives the threaded rod 406 to reset and rotate, thereby driving the fixing block 409 to insert into the fixing groove 404 to fix the movable seat 402; this design facilitates the rapid adjustment of the height of the support plate 3, and during the adjustment process, the protective plate 410 is automatically rotated to the two sides of the support plate 3 to cover the two sides of the support plate 3 to prevent the experimental vessel on the support plate 3 from slipping off during the adjustment process of the support plate 3.

[0036] Please refer to Figures 6 to 10 The mounting mechanism 5 includes a storage groove 501, which is symmetrically arranged at the top of the platform 1. The inner walls of the storage groove 501 are symmetrically provided with card slots 502. The top of the inner wall of the storage groove 501 is rotatably connected with a mounting plate 503. The outer wall of the mounting plate 503 is fixedly connected with two connecting plates 504. The two connecting plates 504 are clamped to form a connecting groove 505. The outer wall of the mounting plate 503 is provided with a rotating groove 506. The inner wall of the rotating groove 506 is rotatably connected with a rotating column 507. The mounting mechanism 5 also includes a square block 508. One end of the rotating column 507 is fixedly connected with the outer wall of the mounting plate 503. A square block 508 is fixedly connected to the end, a second spur gear 509 is fixedly connected to the outer wall of the rotating column 507, a clamping block 510 is slidably connected to the top of the second spur gear 509 inside the mounting plate 503, one end of the clamping block 510 extends to one end of the mounting plate 503, a second spring 511 is connected between the clamping block 510 and the mounting plate 503, a positioning block 512 is slidably connected to the inside of the rotating column 507, one end of the positioning block 512 extending from the rotating column 507 is provided with an inclined surface, and a third spring 513 is connected between the positioning block 512 and the rotating column 507.

[0037] In this embodiment, when the bottom plate 7 is not installed, the mounting plate 503 is located in the receiving slot 501 , and the clamping block 510 is clamped into the clamping slot 502 by the elastic force of the second spring 511 to fix the mounting plate 503 .

[0038] When installing the base plate 7, a tool is used to extend into the rotating groove 506, and the rotating column 507 is driven to rotate by driving the square block 508. The rotating column 507 rotates to drive the second spur gear 509 to rotate, and the second spur gear 509 rotates to drive the clamping block 510 to move, and the clamping block 510 is moved out of the clamping groove 502, and the fixation of the mounting plate 503 is cancelled. Then, the mounting plate 503 is rotated out of the receiving groove 501, and the rotating column 507 is loosened. Then, the base plate 7 is inserted into the connecting groove 505. At this time, the inclined surface direction of the positioning block 512 is toward the outside of the connecting groove 505, and the base plate 7 contacts the positioning block 512, pushing the positioning block 512 to move, causing compression on the third spring 513, until the base plate 7 moves between the two positioning blocks 512, and the two positioning blocks 512 clamp the base plate 7 in the connecting groove 505, and the base plate 7 is fixed.

[0039] When the bottom plate 7 is to be disassembled, the block 510 is pushed to move, and the displacement of the block 510 drives the second spur gear 509 to rotate, and the rotation of the second spur gear 509 drives the rotating column 507 to rotate, and the rotation of the rotating column 507 drives the inclined surface direction of the positioning block 512 toward the inner side of the connecting groove 505, and then the bottom plate 7 is pushed to move out of the connecting groove 505, and the bottom plate 7 is disassembled. Then, the mounting plate 503 is rotated into the storage groove 501, and the block 510 is engaged into the slot 502 by the elastic force of the second spring 511 to fix the mounting plate 503. This design facilitates the rapid installation of the display rack, and when the display rack is not in use, the display rack can be quickly disassembled to increase the use space of the table panel, facilitate experimental operation, and ensure the flatness of the table surface.

[0040] Please refer to Figures 2 to 5 A threaded hole is provided on the outer wall of the displacement frame 407 , and the threaded hole matches the threaded rod 406 . The outer wall of one end of the fixing block 409 fits with the inner wall of the fixing groove 404 .

[0041] In this embodiment: the rotating block 405 is rotated, the rotating block 405 drives the threaded rod 406 to rotate, the threaded rod 406 drives the displacement frame 407 to displace, the displacement frame 407 drives the fixed block 409 to move through the connecting rod 408, and the fixed block 409 moves out of the fixed groove 404, canceling the fixation of the movable seat 402.

[0042] Please refer to Figures 2 to 5 The outer wall of the movable seat 402 fits with the inner wall of the movable groove 401 , and the inner wall of the movable groove 401 is fixedly connected with a limiting column 6 that passes through the movable seat 402 . The outer wall of the movable seat 402 is provided with a limiting hole that slides along the limiting column 6 .

[0043] In this embodiment, the movable seat 402 is pushed to slide in the movable groove 401 to adjust the height of the support plate 3. At this time, the limiting column 6 slides in the limiting hole to position the moving direction of the movable seat 402.

[0044] Please refer to Figures 2 to 5 The outer wall of the slider 415 fits with the inner wall of the slide groove 414, the outer wall of the round rod 416 fits with the inner wall of the round hole 418, and first tooth grooves are provided on both sides of the outer wall of the tooth plate 412, which are respectively meshed with the first spur gears 411 on both sides.

[0045] In this embodiment: the threaded rod 406 rotates to drive the rotating disk 417 to rotate, the rotating disk 417 rotates through the round rod 416 to drive the slider 415 to slide in the slide groove 414, the displacement of the slider 415 drives the tooth plate 412 to displace, causing the first spring 413 to be squeezed, the displacement of the tooth plate 412 drives the first spur gear 411 to rotate, the rotation of the first spur gear 411 drives the protective plate 410 to rotate, the protective plate 410 rotates upward to block the two sides of the support plate 3.

[0046] Please refer to Figures 6 to 10 The outer wall of the block 510 is provided with a second tooth groove, the second tooth groove is meshed with the second spur gear 509, the outer wall of one end of the block 510 is fitted with the inner wall of the slot 502, and the mounting plate 503 is rotatably connected to the receiving slot 501 through the mounting shaft.

[0047] In this embodiment: the rotation of the rotating column 507 drives the second spur gear 509 to rotate, and the rotation of the second spur gear 509 drives the clamping block 510 to move, so as to move the clamping block 510 out of the clamping slot 502, cancel the fixation of the mounting plate 503, and then rotate the mounting plate 503 out of the storage slot 501.

[0048] Please refer to Figures 6 to 10 The inner wall of the connecting groove 505 is in contact with the outer wall of the bottom plate 7 , and one end of the positioning block 512 is located in the inner cavity of the connecting groove 505 .

[0049] In this embodiment: the bottom plate 7 is inserted into the connecting groove 505, at which time the inclined surface of the positioning block 512 is directed toward the outside of the connecting groove 505, the bottom plate 7 contacts the positioning block 512, pushing the positioning block 512 to move, causing compression on the third spring 513, until the bottom plate 7 moves between the two positioning blocks 512, and the two positioning blocks 512 position the bottom plate 7 in the connecting groove 505, thereby fixing the bottom plate 7.

[0050] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A comprehensive laboratory test bench, comprising a bench body (1), characterized in that: The working surface of the platform (1) is coated with a Teflon coating, a bottom plate (7) is arranged at the top of the platform (1), the top of the bottom plate (7) is symmetrically fixedly connected to a mounting frame (2), a movable support plate (3) is arranged on the mounting frame (2), the height of the support plate (3) is adjusted by an adjustment mechanism (4), and the bottom plate (7) is mounted on the platform (1) by a mounting mechanism (5); the adjustment mechanism (4) comprises a movable groove (401), the movable groove (401) is provided on the outer wall of the mounting frame (2), and both ends of the support plate (3) are fixedly connected to movable seats (402), and the movable seats (402) are slidably connected to the movable groove (401). 1), a vertical plate (403) is fixedly connected to the outer wall of the mounting frame (2), a fixing groove (404) is provided on the outer wall of the vertical plate (403), one end of the movable seat (402) is rotatably connected to a rotating block (405), one end of the rotating block (405) is fixedly connected to a threaded rod (406), the outer wall of the threaded rod (406) is connected to a displacement frame (407), both ends of the displacement frame (407) are rotatably connected to connecting rods (408), one end of the connecting rod (408) is rotatably connected to a fixing block (409), and the fixing block (409) is symmetrically slidably connected to the inside of the movable seat (402) and extends out of the movable seat (402); The adjustment mechanism (4) further comprises a protective plate (410), wherein the protective plate (410) is rotatably connected to the outer wall of the movable seat (402) via a rotating shaft, and the protective plate (410) is symmetrically arranged on both sides of the support plate (3), one end of the rotating shaft is fixedly connected to a first spur gear (411), and the first spur gear (411) is rotatably connected to the inside of the movable seat (402), and the inner part of the movable seat (402) is slidably connected to a toothed plate (411) located on the outer wall of the first spur gear (411). 2), a first spring (413) is fixedly connected to the bottom end of the tooth plate (412), a sliding groove (414) is provided on the outer wall of the tooth plate (412), a slider (415) is slidably connected to the inner wall of the sliding groove (414), a round rod (416) is fixedly connected to the outer wall of the slider (415), a rotating disk (417) is fixedly connected to one end of the threaded rod (406), a round hole (418) is provided on the outer wall of the rotating disk (417), and the round rod (416) is located in the round hole (418).

2. A comprehensive laboratory test bench according to claim 1, characterized in that: The mounting mechanism (5) comprises a storage groove (501), the storage groove (501) being symmetrically arranged at the top end of the platform (1), the inner wall of the storage groove (501) being symmetrically provided with clamping grooves (502), the inner wall top end of the storage groove (501) being rotatably connected with a mounting plate (503), the outer wall of the mounting plate (503) being fixedly connected with two connecting plates (504), the two connecting plates (504) being clamped to form a connecting groove (505), the outer wall of the mounting plate (503) being provided with a rotating groove (506), the inner wall of the rotating groove (506) being rotatably connected with a rotating column (507).

3. A comprehensive laboratory test bench according to claim 2, characterized in that: The mounting mechanism (5) further comprises a square block (508), one end of the rotating column (507) being fixedly connected to the square block (508), the outer wall of the rotating column (507) being fixedly connected to a second spur gear (509), a clamping block (510) being slidably connected to the top end of the second spur gear (509) inside the mounting plate (503), one end of the clamping block (510) extending to one end of the mounting plate (503), a second spring (511) being connected between the clamping block (510) and the mounting plate (503), a positioning block (512) being slidably connected to the inside of the rotating column (507), one end of the positioning block (512) extending out of the rotating column (507) being provided with an inclined surface, and a third spring (513) being connected between the positioning block (512) and the rotating column (507).

4. A comprehensive laboratory test bench according to claim 1, characterized in that: A threaded hole is provided on the outer wall of the displacement frame (407), and the threaded hole matches the threaded rod (406). The outer wall of one end of the fixing block (409) fits the inner wall of the fixing groove (404).

5. A comprehensive laboratory test bench according to claim 1, characterized in that: The outer wall of the movable seat (402) fits with the inner wall of the movable groove (401); the inner wall of the movable groove (401) is fixedly connected with a limiting column (6) that passes through the movable seat (402); and the outer wall of the movable seat (402) is provided with a limiting hole that slides along the limiting column (6).

6. A comprehensive laboratory test bench according to claim 1, characterized in that: The outer wall of the sliding block (415) fits with the inner wall of the sliding groove (414), and the outer wall of the round rod (416) fits with the inner wall of the round hole (418).

7. A comprehensive laboratory test bench according to claim 1, characterized in that: First tooth grooves are provided on both sides of the outer wall of the tooth plate (412), and the first tooth grooves are respectively meshed with the first spur gears (411) on both sides.

8. The comprehensive laboratory test bench according to claim 3, characterized in that: The outer wall of the clamping block (510) is provided with a second tooth groove, the second tooth groove is meshed with the second spur gear (509), the outer wall of one end of the clamping block (510) is in contact with the inner wall of the clamping groove (502), and the mounting plate (503) is rotatably connected to the receiving groove (501) via a mounting shaft.

9. The comprehensive laboratory test bench according to claim 3, characterized in that: The inner wall of the connecting groove (505) is in contact with the outer wall of the bottom plate (7), and one end of the positioning block (512) is located in the inner cavity of the connecting groove (505).

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