A detection kit for detecting biological macromolecules
By introducing adjustable capacity and stable structure into the kit, the problems of capacity fixation and instability of existing kits are solved, flexible use and efficient operation of kits are realized, and the practicality of biological macromolecule detection is improved and Diversity.
Patent Information
- Application Number
- CN202411470782.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2044-10-21
AI Technical Summary
The capacity of existing kits cannot be adjusted during biomacromolecules detection, resulting in the need to replace the kit. The kit is unstable due to the lack of a fixation mechanism, which can easily lead to biomolecule damage and test data errors.
A detection biomacromolecule detection kit including a kit body, a base rack and a top cover is designed. The capacity adjustment and stability of the kit body are achieved through L-shaped sliders, plug blocks, threaded rods and other structures. The base rack and Desktop contact increases stability, and micro-spring and magnetic suction technology ensures the stability of the kit body.
The capacity adjustment and operation stability of the kit body are achieved, the practicality and convenience of the test are improved, the need for kit replacement is reduced, and the detection ability of different molecular types is enhanced.
Smart Images
Figure CN118977917B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of test kits, and more specifically, particularly relates to a test kit for detecting biomacromolecules. Background Art
[0002] When detecting biological molecules, a kit is needed. There are many types of kits, and the functions used are also different. However, when detecting biological macromolecules, the existing kits have the following disadvantages:
[0003] 1. When the existing test kits are used to detect macromolecules, the capacity of the test kits cannot be adjusted and remains fixed, so when users need to test different quantities of biomacromolecules, they need to replace different test kits. Replacing the test kits is not only troublesome, but also damages the molecules, resulting in errors in the test data.
[0004] 2. When the existing test kit is in use, there is no fixing mechanism at the bottom, which causes the test kit to shake unstably when the user is taking samples or operating. The instability of the test kit will cause violent shaking of the molecules inside, causing damage to the biological molecules.
[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a detection kit for detecting biological macromolecules is provided, in order to achieve a more practical purpose. Summary of the invention
[0006] In order to solve the above technical problems, the present invention provides a detection kit for detecting biomacromolecules to solve the above problems.
[0007] A detection kit for detecting biological macromolecules, comprising a kit body, a base frame is arranged below the kit body, a top cover is arranged above the base frame, four inner slide grooves are equidistantly opened on the outer ring of the base frame, and the inner slide grooves pass through the bottom and side walls of the base frame, an L-shaped slider and an insert block are slidably installed inside each of the inner slide grooves, the insert block is located in the vertical direction of the base frame, the L-shaped slider is located in the horizontal direction of the base frame, and the insert block is located below the L-shaped slider, a cross plate is fixedly installed above the top cover, a circular plate is movably installed inside the top cover located below the cross plate, a lower threaded rod is rotatably installed on the top of the circular plate, an upper threaded rod is installed above the lower threaded rod, and the lower threaded rod and the upper threaded rod both pass through the outside of the cross plate through threads.
[0008] Preferably, a fixing ring is fixedly installed on the lower end of the test kit body, four lower slots are equidistantly provided below the fixing ring, an annular magnetic block is inlaid and fixedly installed below the fixing ring located in the middle of the four lower slots, at least two rectangular slots are provided on the lower end of the base frame located below the inner slide groove, and each inner slide groove has a rectangular slot on both sides, an upper slide groove is provided above each of the inner slide grooves located at the top of the base frame, a groove is provided above the base frame, a conical frame is fixedly installed on the lower end of each of the plug blocks, a spring frame is fixedly installed on the left and right sides of each of the plug blocks, each of the spring frames is located in the rectangular slot, and a micro spring is fixedly installed between each spring frame and the top of the rectangular slot.
[0009] Preferably, a fixing rod is fixedly installed on the top of each of the plug blocks, a support plate is fixedly installed on the top of each of the fixing rods, each of the fixing rods and the support plate is located in an upper slide groove, an inclined groove is provided below the horizontal section of each of the L-shaped sliders, a side slot is provided on the side wall of each of the L-shaped sliders, each of the L-shaped sliders is sleeved on the outside of the fixing rod through the side slot, a sealing gasket is fixedly installed on the outer ring of the circular plate, two sampling tubes are fixedly installed above the circular plate, and the top cover is installed outside the test kit body through threads.
[0010] Preferably, a second rotating shaft frame is fixedly installed above the lower threaded rod, and a rotating shaft sleeve is fixedly installed below the upper threaded rod, and the rotating shaft sleeve is rotatably sleeved outside the rotating shaft of the second rotating shaft frame, and an upper groove is opened on the side wall of the lower threaded rod, and a rectangular magnetic block is fixedly installed on the lower end of the upper threaded rod, and the rectangular magnetic block is located above the upper groove, and a side groove is opened on the side wall of the upper threaded rod, and the side groove is located on the side away from the upper groove, and a threaded groove is opened through the top of the cross plate, and the upper threaded rod and the lower threaded rod are both matched with the threaded groove, and a first rotating shaft frame is fixedly installed above the cross plate, and an L-turn plate is rotatably installed on the first rotating shaft frame, and a protrusion is fixedly installed on the side wall of the horizontal section of the L-turn plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In the present invention, by using the reagent box body, the user can adjust the capacity of the reagent box body according to the needs of molecular detection. The user can rotate the upper threaded rod, and the upper threaded rod drives the lower threaded rod to rotate in the horizontal plate, and drives the circular plate to move upward or downward, so as to adjust the capacity of the reagent box body. By designing the reagent box body to be stable on the desktop, it is convenient for the user to operate the reagent box body. At the same time, the reagent box body is designed to be capacity-adjustable, so that different operation tests on molecules can be conveniently performed, which greatly improves the practicality of the reagent box body.
[0013] In the present invention, by placing the base frame on the desktop, the conical frames at the bottom of the multiple plug-ins are in contact with the desktop, and the multiple micro springs support the plug-ins. When the reagent box body is placed in the groove, the base frame is forced to move downward, and the multiple micro springs are compressed and deformed downward by the base frame. At the same time, the multiple L-shaped sliders are forced to squeeze the top of the plug-in block, and the multiple L-shaped sliders move horizontally outward. The bottoms of the L-shaped sliders are in contact with the desktop. At this time, the contact area between the base frame and the desktop becomes larger, and the base frame becomes more stable, so that the reagent box body is more stable during operation.
[0014] In the present invention, as the base frame moves downward, the fixing rod on the top of the insert block gradually leaks out of the upper slide groove. At this time, the fixing rod and the support plate are inserted into the lower slot opened below the reagent box body. At this time, the reagent box body is restricted by the base frame and cannot rotate. The reagent box body is more stable during operation. At the same time, the annular magnetic block at the lower end of the reagent box body will be magnetically attracted to the inner wall of the base frame. Therefore, the stability between the reagent box body and the base frame is strong, which greatly improves the convenience of operation.
[0015] In the present invention, the bottom of the base frame is supported by four plug blocks, and the bottoms of the four plug blocks are provided with conical frames, so the base frame can still maintain the stability of the reagent box body on some slightly uneven desktops, thereby improving the stability of the inside of the reagent box body.
[0016] In the present invention, the upper threaded rod is rotated backward, and the upper threaded rod is rotated outside the rotating shaft of the second rotating shaft frame through the rotating shaft sleeve. The rotation of the upper threaded rod drives the rectangular magnetic block at the bottom to rotate, and the rectangular magnetic block stops when it rotates into the upper groove opened by the lower threaded rod. At the same time, the side wall of the rectangular magnetic block is magnetically attracted to the inner wall of the upper groove. At this time, the upper threaded rod and the lower threaded rod are in a vertical state. By designing the upper threaded rod and the lower threaded rod to be bendable, the upper threaded rod and the lower threaded rod can be placed in a space when not in use, thereby improving the portability of the test kit body. When the upper threaded rod and the lower threaded rod are in a bent state, the user rotates the horizontal section of the L-turn plate into the upper groove, and the L-turn plate is stuck to the lower threaded rod to prevent the circular plate from rotating.
[0017] In the present invention, the sealing gasket fits the inner wall of the reagent box body to maintain good sealing performance. At the same time, the sealing gasket fills the inner wall between the circular plate and the reagent box body, which can reduce the speed at which the circular plate moves downward, thereby accurately adjusting the capacity of the reagent box body. Two sampling tubes are arranged above the circular plate to facilitate sampling by the user. By designing the circular plate to be liftable, the capacity of the reagent box body can be changed, which can facilitate the user to detect or culture different types of molecules without replacing the reagent box body, thereby improving the diversity of the reagent box body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the test kit of the present invention;
[0019] Figure 2 It is a schematic diagram of the top cover structure of the present invention;
[0020] Figure 3 It is a schematic diagram of the base frame structure of the present invention;
[0021] Figure 4 It is a schematic diagram of the structure of the L-shaped slider of the present invention;
[0022] Figure 5 It is a schematic diagram of the plug structure of the present invention;
[0023] Figure 6 It is a schematic diagram of the support plate structure of the present invention;
[0024] Figure 7 It is a schematic diagram of the structure of the upper threaded rod of the present invention;
[0025] Figure 8 It is a schematic diagram of the circular plate structure of the present invention;
[0026] Fig. 9 The present invention Figure 8 A schematic diagram of the enlarged structure at point A;
[0027] Fig.10 The present invention Figure 8 Schematic diagram of the enlarged structure at B.
[0028] In the figure, the corresponding relationship between the component names and the figure numbers is: 1. reagent box body; 11. fixing ring; 12. annular magnetic block; 13. lower slot; 14. base frame; 15. inner slide groove; 16. upper slide groove; 17. rectangular groove; 18. groove; 2. L-shaped slider; 21. oblique groove; 22. side slot; 23. plug block; 24. fixing rod; 25. support plate; 26. spring frame; 27. micro spring; 28. conical frame; 3. top cover; 31. cross plate; 32. threaded groove; 33. first rotating shaft frame; 34. L rotating plate; 35. protrusion; 36. round plate; 37. sealing gasket; 38. sampling tube; 4. upper threaded rod; 41. side groove; 42. rotating shaft sleeve; 43. rectangular magnetic block; 44. lower threaded rod; 45. second rotating shaft frame; 46. upper groove. DETAILED DESCRIPTION
[0029] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0030] See also Figure 1-10The present invention provides a detection kit for detecting biomacromolecules, comprising a kit body 1, a base frame 14 is arranged below the kit body 1, a top cover 3 is arranged above the base frame 14, four inner slide grooves 15 are equidistantly arranged on the outer ring of the base frame 14, and the inner slide grooves 15 pass through the bottom and side walls of the base frame 14, an L-shaped slider 2 and an insert block 23 are slidably installed inside each inner slide groove 15, the insert block 23 is located in the vertical direction of the base frame 14, the L-shaped slider 2 is located in the horizontal direction of the base frame 14, and the insert block 23 is located below the L-shaped slider 2, and a horizontal plate 31 is fixedly installed above the top cover 3, A circular plate 36 is movably installed inside the top cover 3 located below the horizontal plate 31. The user can rotate the upper threaded rod 4, which drives the lower threaded rod 44 to rotate inside the horizontal plate 31 and drives the circular plate 36 to move upward or downward, thereby adjusting the capacity of the reagent box body 1. By designing the reagent box body 1 to be stable on the desktop, it is convenient for the user to operate the reagent box body 1. The lower threaded rod 44 is rotatably installed on the top of the circular plate 36, and the upper threaded rod 4 is installed above the lower threaded rod 44. The lower threaded rod 44 and the upper threaded rod 4 are both threaded through the outside of the horizontal plate 31.
[0031] A fixing ring 11 is fixedly installed at the lower end of the reagent box body 1, and four lower slots 13 are equidistantly opened below the fixing ring 11. An annular magnetic block 12 is inlaid and fixedly installed below the fixing ring 11 in the middle of the four lower slots 13. At least two rectangular slots 17 are opened at the lower end of the base frame 14 below the inner slide groove 15, and each inner slide groove 15 has a rectangular slot 17 on both sides. An upper slide groove 16 is opened above each inner slide groove 15 at the top of the base frame 14, and a groove 18 is opened above the base frame 14. Each slot 13 is fixedly installed below the fixing ring 11 in the middle of the four lower slots 13. A conical frame 28 is fixedly installed at the lower end of the block 23. When the reagent box body 1 is placed in the groove 18, the base frame 14 is forced to move downward, and multiple micro springs 27 are compressed and deformed downward by the base frame 14. At the same time, multiple L-shaped sliders 2 are forced to squeeze the top of the plug block 23, and multiple L-shaped sliders 2 move horizontally outward. Spring frames 26 are fixedly installed on the left and right sides of each plug block 23. Each spring frame 26 is located in the rectangular groove 17, and a micro spring 27 is fixedly installed between each spring frame 26 and the top of the rectangular groove 17.
[0032] The top of each plug block 23 is fixedly installed with a fixing rod 24, and the top of each fixing rod 24 is fixedly installed with a supporting plate 25, each fixing rod 24 and the supporting plate 25 are both located in the upper slide groove 16, and an inclined groove 21 is opened below the horizontal section of each L-shaped slider 2, and a side slot 22 is opened on the side wall of each L-shaped slider 2, and each L-shaped slider 2 is sleeved outside the fixing rod 24 through the side slot 22, and the fixing rod 24 at the top of the plug block 23 gradually leaks out of the upper slide groove 16. At this time, the fixing rod 24 and the supporting plate 25 are inserted into the lower slot 13 opened below the reagent box body 1. At this time, the reagent box body 1 is restricted by the base frame 14 and cannot rotate. The reagent box body 1 is more stable during operation. At the same time, the annular magnetic block 12 at the lower end of the reagent box body 1 will be magnetically attracted to the inner wall of the base frame 14, so the stability between the reagent box body 1 and the base frame 14 is relatively strong, and a sealing gasket 37 is fixedly installed on the outer ring of the circular plate 36, and two sampling tubes 38 are fixedly installed above the circular plate 36, and the top cover 3 is installed outside the reagent box body 1 by threads.
[0033] A second rotating shaft frame 45 is fixedly installed above the lower threaded rod 44, and a rotating shaft sleeve 42 is fixedly installed below the upper threaded rod 4. The rotating shaft sleeve 42 is rotatably sleeved outside the rotating shaft of the second rotating shaft frame 45. An upper groove 46 is opened on the side wall of the lower threaded rod 44. A rectangular magnetic block 43 is fixedly installed on the lower end of the upper threaded rod 4, and the rectangular magnetic block 43 is located above the upper groove 46. A side groove 41 is opened on the side wall of the upper threaded rod 4. The rotation of the upper threaded rod 4 drives the rectangular magnetic block 43 at the bottom to rotate. The rectangular magnetic block 43 stops when it rotates into the upper groove 46 opened in the lower threaded rod 44. At the same time, the side wall of the rectangular magnetic block 43 is connected to the upper groove 46. The inner wall of the groove 46 is magnetically attracted. At this time, the upper threaded rod 4 and the lower threaded rod 44 are in a vertical state. By designing the upper threaded rod 4 and the lower threaded rod 44 to be bendable, the upper threaded rod 4 and the lower threaded rod 44 can be placed in a space when not in use, and the side groove 41 is located on the side away from the upper groove 46. A threaded groove 32 is opened through the top of the cross plate 31, and the upper threaded rod 4 and the lower threaded rod 44 are both matched with the threaded groove 32. A first rotating shaft frame 33 is fixedly installed above the cross plate 31, and an L rotating plate 34 is rotatably installed on the first rotating shaft frame 33. A protrusion 35 is fixedly installed on the side wall of the horizontal section of the L rotating plate 34.
[0034] Working principle:
[0035] In the first step, when the user detects biological macromolecules, he first places the base frame 14 on the desktop, and then places the reagent box body 1 on the base frame 14, and the bottom of the reagent box body 1 is inserted into the groove 18 opened in the base frame 14. At this time, the weight of the base frame 14 increases, and the base frame 14 presses down to drive the four plug blocks 23 to move upward, and the plug blocks 23 move upward to drive the support plate 25 to be inserted into the lower slot 13 opened in the reagent box body 1. At this time, the reagent box body 1 is fixed. When using the reagent box body 1, the user can adjust the capacity of the reagent box body 1 according to the needs of molecular detection. The user can rotate the upper threaded rod 4, and the upper threaded rod 4 drives the lower threaded rod 44 to rotate in the horizontal plate 31, and drives the circular plate 36 to move upward or downward, so as to adjust the capacity of the reagent box body 1. By designing the reagent box body 1 to be stable on the desktop, it is convenient for the user to operate the reagent box body 1. At the same time, the reagent box body 1 is designed to be capacity-adjustable, so that different operation tests on molecules can be conveniently performed, which greatly improves the practicality of the reagent box body 1.
[0036] In the second step, the user places the base frame 14 on the desktop, the conical frames 28 at the bottom of the multiple plug blocks 23 contact the desktop, and the multiple micro springs 27 support the plug blocks 23. When the reagent box body 1 is placed in the groove 18, the base frame 14 is forced to move downward, and the multiple micro springs 27 are compressed and deformed downward by the base frame 14. At the same time, the multiple L-shaped sliders 2 are forced to squeeze the top of the plug blocks 23, and the multiple L-shaped sliders 2 move horizontally outward. The bottom of the L-shaped sliders 2 contact the desktop. At this time, the contact area between the base frame 14 and the desktop becomes larger, and the base frame 14 becomes more stable, so that the reagent box body 1 is more stable during operation;
[0037] During the downward movement of the base frame 14, the fixing rod 24 on the top of the insert block 23 gradually leaks out of the upper slide groove 16, and at this time, the fixing rod 24 and the support plate 25 are inserted into the lower slot 13 provided below the reagent box body 1. At this time, the reagent box body 1 is restricted by the base frame 14 and cannot rotate, and the reagent box body 1 is more stable during operation. At the same time, the annular magnetic block 12 at the lower end of the reagent box body 1 will be magnetically attracted to the inner wall of the base frame 14, so the stability between the reagent box body 1 and the base frame 14 is strong, which greatly improves the convenience of operation;
[0038] Since the bottom of the base frame 14 is supported by four inserting blocks 23 and the bottoms of the four inserting blocks 23 are provided with conical frames 28 , the base frame 14 can still maintain the stability of the reagent box body 1 on some slightly uneven desktops, thereby improving the stability inside the reagent box body 1 .
[0039] The third step is to change the capacity of the reagent box body 1, and then the user screws the top cover 3 on the reagent box body 1, and then rotates the upper threaded rod 4 backward, and the upper threaded rod 4 rotates outside the shaft of the second shaft frame 45 through the shaft sleeve 42. The rotation of the upper threaded rod 4 drives the rectangular magnetic block 43 at the bottom to rotate, and the rectangular magnetic block 43 stops when it rotates into the upper groove 46 opened by the lower threaded rod 44. At the same time, the side wall of the rectangular magnetic block 43 is magnetically attracted to the inner wall of the upper groove 46. At this time, the upper threaded rod 4 and the lower threaded rod 44 are in a vertical state. By designing the upper threaded rod 4 and the lower threaded rod 44 to be bendable, the upper threaded rod 4 and the lower threaded rod 44 can be placed in a space when not in use, thereby improving the portability of the reagent box body 1. When the upper threaded rod 4 and the lower threaded rod 44 are in a bent state, the user rotates the horizontal section of the L rotating plate 34 into the upper groove 46, and the L rotating plate 34 is stuck to the lower threaded rod 44 to prevent the circular plate 36 from rotating. At the same time, the protrusion 35 can facilitate the user to rotate with his fingers;
[0040] When the upper threaded rod 4 and the lower threaded rod 44 are in a vertical state, the user rotates the upper threaded rod 4, and the rotation of the upper threaded rod 4 and the lower threaded rod 44 drives the circular plate 36 to move downward. The circular plate 36 moves downward to reduce the capacity of the reagent box body 1. At the same time, the sealing gasket 37 fits with the inner wall of the reagent box body 1 to maintain good sealing. At the same time, the sealing gasket 37 fills the inner wall between the circular plate 36 and the reagent box body 1, which can reduce the speed of the circular plate 36 moving downward, so that the capacity of the reagent box body 1 can be accurately adjusted. Two sampling tubes 38 are arranged above the circular plate 36 to facilitate sampling by the user. By designing the circular plate 36 to be liftable, the capacity of the reagent box body 1 can be changed, which can facilitate the user to detect or culture different molecular types without replacing the reagent box body 1, thereby improving the diversity of the reagent box body 1.
[0041] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A detection kit for detecting biomacromolecules, comprising a kit body (1), characterized in that: A base frame (14) is arranged below the reagent box body (1), a top cover (3) is arranged above the base frame (14), four inner slide grooves (15) are equidistantly arranged on the outer ring of the base frame (14), and the inner slide grooves (15) pass through the bottom and side walls of the base frame (14), and an L-shaped slider (2) and an insert block (23) are slidably installed inside each of the inner slide grooves (15), the insert block (23) is located in the vertical direction of the base frame (14), the L-shaped slider (2) is located in the horizontal direction of the base frame (14), and the insert block (23) is located below the L-shaped slider (2); A horizontal plate (31) is fixedly mounted above the top cover (3), a circular plate (36) is movably mounted inside the top cover (3) below the horizontal plate (31), a lower threaded rod (44) is rotatably mounted on the top of the circular plate (36), an upper threaded rod (4) is mounted above the lower threaded rod (44), the lower threaded rod (44) and the upper threaded rod (4) are both threadedly penetrated outside the horizontal plate (31), a fixing ring (11) is fixedly mounted on the lower end of the reagent box body (1), and four lower slots (11) are equidistantly provided below the fixing ring (11) 13), a ring-shaped magnetic block (12) is embedded and fixedly installed below the fixing ring (11) located in the middle of the four lower slots (13), at least two rectangular grooves (17) are opened at the lower end of the base frame (14) located below the inner slide groove (15), and each inner slide groove (15) has a rectangular groove (17) on both sides, and an upper slide groove (16) is opened above each inner slide groove (15) located at the top of the base frame (14), and a groove (18) is opened above the base frame (14), and the lower end of each of the plug blocks (23) is fixedly installed There is a conical frame (28), spring frames (26) are fixedly installed on the left and right sides of each of the plug blocks (23), each of the spring frames (26) is located in the rectangular groove (17), and a micro spring (27) is fixedly installed between each spring frame (26) and the top of the rectangular groove (17), a fixing rod (24) is fixedly installed on the top of each of the plug blocks (23), a support plate (25) is fixedly installed on the top of each of the fixing rods (24), each of the fixing rods (24) and the support plate (25) is located in the upper slide groove (16), and the lower thread A second rotating shaft frame (45) is fixedly mounted above the rod (44); a rotating shaft sleeve (42) is fixedly mounted below the upper threaded rod (4); the rotating shaft sleeve (42) is rotatably sleeved outside the rotating shaft of the second rotating shaft frame (45); an upper groove (46) is formed on the side wall of the lower threaded rod (44); a rectangular magnetic block (43) is fixedly mounted on the lower end of the upper threaded rod (4), and the rectangular magnetic block (43) is located above the upper groove (46); a side groove (41) is formed on the side wall of the upper threaded rod (4), and the side groove (41) is located on a side away from the upper groove (46).
2. A detection kit for detecting biomacromolecules according to claim 1, characterized in that: An oblique groove (21) is provided below the horizontal section of each L-shaped slider (2), a side slot (22) is provided on the side wall of each L-shaped slider (2), and each L-shaped slider (2) is sleeved outside the fixing rod (24) through the side slot (22).
3. A detection kit for detecting biomacromolecules according to claim 1, characterized in that: A sealing gasket (37) is fixedly mounted on the outer ring of the circular plate (36), two sampling tubes (38) are fixedly mounted above the circular plate (36), and the top cover (3) is mounted on the outside of the reagent kit body (1) via threads.
4. A detection kit for detecting biomacromolecules according to claim 1, characterized in that: A thread groove (32) is formed through the top of the transverse plate (31), and the upper threaded rod (4) and the lower threaded rod (44) are both matched with the thread groove (32). A first rotating shaft frame (33) is fixedly mounted on the top of the transverse plate (31), and an L-shaped rotating plate (34) is rotatably mounted on the first rotating shaft frame (33). A protrusion (35) is fixedly mounted on the side wall of the horizontal section of the L-shaped rotating plate (34).