A mortar fixing device for RNA extraction
By combining a fixed base, rotating column, gears, and anti-slip pads, the problem of slippage and tilting of the grippers in existing RNA extraction mortar fixing devices is solved, achieving stable positioning and fixing of the mortar and improving the applicability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU SERGOS BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-12
AI Technical Summary
Existing mortar and pestle fixing devices for RNA extraction are prone to slippage and tilting of the mortar and pestle after prolonged use of the clamps, resulting in limited applicability.
The mortar adopts a combination structure of fixed base, rotating column, gear, gear ring, clamping plate, movable groove, placement groove, support plate and anti-slip pad. The mortar is limited and fixed by gear meshing and threaded rod adjustment to prevent slippage and tilting.
This effectively prevents the mortar from sliding and tilting in the placement groove, improving the applicability and stability of the device.
Smart Images

Figure CN224346020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of a mortar and pestle fixing device for RNA extraction, and particularly to a mortar and pestle fixing device for RNA extraction. Background Technology
[0002] Existing mortar fixing devices for RNA extraction use grippers to clamp and fix the mortar. However, during use, when the grippers wear down significantly due to prolonged use, the mortar tends to slip and tilt within the placement groove during clamping. For example, Chinese patent disclosure "A fixing device for an RNA extraction mortar" (application number: CN202222441271.3) includes a positioning cylinder with a stable support mounting plate fixedly connected to its bottom. By adjusting the position of the positioning and stabilizing sleeve according to the inner diameter of the RNA mortar, the adjusting threaded rods on both sides are rotated synchronously. The displacement difference generated by the vertical displacement of the internal positioning roller and the inclined surface of the RNA mortar is used to push and fix the RNA mortar from the front, back, left, and right directions. This structure is convenient to use, but it requires special mortars and has low applicability. When using other mortars, the mortar tends to slip and tilt within the placement groove during clamping, which limits its use. Utility Model Content
[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a mortar fixing device for RNA extraction. By setting a fixing seat, a rotating column one, a gear one, a rotating groove two, a gear ring, a gear two, a rotating column two, a clamping plate, a movable groove, a placement groove, a support plate, and an anti-slip pad, it is convenient to limit and fix the mortar, and avoid the situation where the mortar slides up and tilts in the placement groove when clamping due to prolonged use of the clamping claw.
[0004] This utility model also provides a mortar fixing device for RNA extraction as described above, comprising: a fixing base, a rotating column rotatably connected to the fixing base, a gear rotatably connected to the bottom end of the rotating column, a rotating groove rotatably connected to the fixing base, a gear ring rotatably connected within the rotating groove rotatably, the inner and outer rings of the gear ring being provided with teeth, the gear rotatably meshing with the gear ring, the inner ring of the gear ring meshing with the gear 2, the rotating column rotatably connected to the fixing base, a clamping plate rotatably connected to the side surface of the rotating column rotatably connected, the gear 2 being rotatably connected to the rotating column rotatably, a movable groove provided within the fixing base, the clamping plate being located within the movable groove, a placement groove provided within the fixing base, the movable groove communicating with the placement groove, a support plate being provided at the bottom of the placement groove, and an anti-slip pad being provided on the inner wall of the placement groove. Through the above structure, it is convenient to limit and fix the mortar, avoiding the mortar sliding upwards or tilting within the placement groove during clamping due to prolonged use of the clamps.
[0005] According to the present invention, a mortar and pestle fixing device for RNA extraction has a rotating shaft rotatably connected to the upper surface of the fixing base, a connecting block one fixedly connected to the side surface of the rotating shaft, a reinforced glass plate fixedly connected to one side surface of the connecting block, and a connecting block two fixedly connected to the side surface of the reinforced glass plate away from the connecting block one. The reinforced glass plate is provided with perforations. The above structure facilitates the prevention of sample splashing during grinding and also facilitates the inspection of the grinding process.
[0006] According to the present invention, a mortar fixing device for RNA extraction has a fixing block fixedly connected to the upper surface of the fixing base, and a rotating plate is provided on the upper surface of the fixing block. The above structure facilitates the determination of the position of the rotating plate.
[0007] According to the present invention, a mortar fixing device for RNA extraction is provided on the rotating plate. The top screw plate passes through the rotating plate and is threadedly connected to the fixing block. The above structure facilitates the fixing of the rotating plate.
[0008] According to the present invention, a mortar fixing device for RNA extraction has a threaded rod threadedly connected to the fixing base, and a rotating block is fixedly connected to the top of the threaded rod. The above structure facilitates the rotation of the rotating block, thereby changing the position of the rotating block.
[0009] According to the present invention, a mortar and pestle fixing device for RNA extraction is provided in the tray, and the rotating block is located in the rotating groove and rotatably connected to the rotating groove. The above structure facilitates the rotation of the rotating block.
[0010] According to the present invention, a mortar and pestle fixing device for RNA extraction has a support block fixedly connected to the lower surface of the fixing base. The support block is located on both sides of the threaded rod. The above structure facilitates the support of the whole.
[0011] Beneficial effects:
[0012] Compared with the prior art, this mortar fixing device for RNA extraction is equipped with a fixing seat, a rotating column one, a gear one, a rotating groove two, a gear ring, a gear two, a rotating column two, a clamping plate, a movable groove, a placement groove, a support plate, and an anti-slip pad. This facilitates the limiting and fixing of the mortar and avoids the mortar from sliding up and tilting in the placement groove when clamping due to prolonged use of the clamping claws. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is an overall structural diagram of a mortar and pestle fixing device for RNA extraction according to the present invention;
[0015] Figure 2 This is a bottom view of the mortar and pestle fixing device for RNA extraction according to the present invention.
[0016] Figure 3 This is a cross-sectional view of a mortar and pestle fixing device for RNA extraction according to the present invention.
[0017] Figure 4 This is a longitudinal sectional view of a mortar and pestle fixing device for RNA extraction according to the present invention;
[0018] Figure 5 This invention relates to a mortar and pestle fixing device for RNA extraction. Figure 3 Enlarged structural diagram at point C.
[0019] Legend:
[0020] 1. Fixed base; 2. Support block; 3. Connecting block one; 4. Tempered glass plate; 5. Perforation; 6. Rotating column one; 7. Connecting block two; 8. Rotating plate; 9. Set screw; 10. Fixed block; 11. Threaded rod; 12. Placement slot; 13. Support plate; 14. Rotating slot one; 15. Rotating block; 16. Rotating slot two; 17. Gear one; 18. Gear ring; 19. Gear two; 20. Rotating column two; 21. Movable slot; 22. Clamping plate. Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] Reference Figure 1-5 This utility model discloses a mortar fixing device for RNA extraction, comprising: a fixing base 1, a rotating column 6 rotatably connected to the fixing base 1, a gear 17 fixedly connected to the bottom end of the rotating column 6, a rotating groove 16 provided on the fixing base 1, a gear ring 18 rotatably connected within the rotating groove 16, both the inner and outer rings of the gear ring 18 being provided with teeth, and the gear 17 meshing with the gear ring 18, a gear 19 meshing with the inner ring of the gear ring 18, a rotating column 20 rotatably connected to the fixing base 1, and a clamping plate 2 fixedly connected to the side surface of the rotating column 20. 2. Gear 219 is fixedly connected to rotating column 20. The fixed seat 1 is provided with a movable groove 21. The clamping plate 22 is located in the movable groove 21. The fixed seat 1 is provided with a placement groove 12. The movable groove 21 is connected to the placement groove 12. The bottom of the placement groove 12 is provided with a support plate 13. The support plate 13 is provided with a rotating groove 14. The fixed seat 1 is threadedly connected with a threaded rod 11. The top of the threaded rod 11 is fixedly connected with a rotating block 15. The rotating block 15 is located in the rotating groove 14 and is rotatably connected to the rotating groove 14. The inner wall of the placement groove 12 is provided with an anti-slip pad.
[0023] Specifically, the mortar is placed on the tray 13 in the placement groove 12. When the rotating column 6 rotates, it drives the gear 17 to rotate. Through gear meshing, the gear ring 18 rotates, which in turn drives the gear 19 to rotate, causing the rotating column 20 to rotate. This causes the clamping plate 22 to rotate, thus limiting and fixing the upper edge of the mortar. Rotating the threaded rod 11 causes the rotating block 15 to rotate in the rotating groove 14 in the tray 13, causing the tray 13 to rise and limit and fix the mortar. The anti-slip pad design prevents the mortar from rotating.
[0024] A rotating shaft is rotatably connected to the upper surface of the fixed base 1. A connecting block 3 is fixedly connected to the side surface of the rotating shaft. A tempered glass plate 4 is fixedly connected to the side surface of the connecting block 3. A connecting block 7 is fixedly connected to the side surface of the tempered glass plate 4 away from the connecting block 3. A through hole 5 is provided on the tempered glass plate 4. A fixed block 10 is fixedly connected to the upper surface of the fixed base 1. A rotating plate 8 is provided on the upper surface of the fixed block 10. A set screw 9 is provided on the rotating plate 8. The set screw 9 passes through the rotating plate 8 and is threadedly connected to the fixed block 10. A support block 2 is fixedly connected to the lower surface of the fixed base 1. The support block 2 is located on both sides of the threaded rod 11.
[0025] Specifically, the connecting block 3 is rotated by the rotating shaft, which causes the tempered glass plate 4 to rotate. Then the rotating plate 8 is rotated and fixed by the set screw 9. The connecting block 7 is then limited and fixed, and then grinding can be carried out. The support block 2 supports the whole.
[0026] Working principle: In use, the mortar is placed in the placement slot 12. The height of the support plate 13 is adjusted by rotating the threaded rod 11 to lift the mortar. Then, the rotating column 6 is rotated, causing the gear 17 to rotate. Since the gear ring 18 has teeth on both the inner and outer sides, when the gear 17 rotates, it causes the gear ring 18 to rotate through meshing. Similarly, when the gear 18 rotates, it drives the gear 19 to rotate, causing the rotating column 20 to rotate, which in turn drives the clamping plate 22 to rotate, locking and limiting the upper edge of the mortar. Then, the threaded rod 11 is rotated again to raise the support plate 13 and fix the mortar.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A mortar and pestle fixation device for RNA extraction, characterized in that, include: A fixed base (1) is provided, on which a rotating column (6) is rotatably connected. A gear (17) is fixedly connected to the bottom end of the rotating column (6). A rotating groove (16) is provided on the fixed base (1), and a gear ring (18) is rotatably connected in the rotating groove (16). Both the inner and outer rings of the gear ring (18) are provided with teeth, and the gear (17) meshes with the gear ring (18). A gear (19) meshes with the inner ring of the gear ring (18). A gear is rotatably connected to the fixed base (1). Rotating column two (20), a clamping plate (22) is fixedly connected to the side surface of the rotating column two (20), the gear two (19) is fixedly connected to the rotating column two (20), the fixed seat (1) is provided with a movable groove (21), the clamping plate (22) is located in the movable groove (21), the fixed seat (1) is provided with a placement groove (12), the movable groove (21) is connected to the placement groove (12), the bottom of the placement groove (12) is provided with a support plate (13), and the inner wall of the placement groove (12) is provided with an anti-slip pad.
2. The mortar and pestle fixing device for RNA extraction according to claim 1, characterized in that, The upper surface of the fixed base (1) is rotatably connected to a rotating shaft, the side surface of the rotating shaft is fixedly connected to a connecting block one (3), the side surface of the connecting block one (3) is fixedly connected to a tempered glass plate (4), the side surface of the tempered glass plate (4) away from the connecting block one (3) is fixedly connected to a connecting block two (7), and the tempered glass plate (4) is provided with a perforation (5).
3. The mortar and pestle fixing device for RNA extraction according to claim 1, characterized in that, A fixing block (10) is fixedly connected to the upper surface of the fixing base (1), and a rotating plate (8) is provided on the upper surface of the fixing block (10).
4. The mortar and pestle fixing device for RNA extraction according to claim 3, characterized in that, The rotating plate (8) is provided with a set screw (9), which passes through the rotating plate (8) and is threadedly connected to the fixing block (10).
5. The mortar and pestle fixing device for RNA extraction according to claim 1, characterized in that, A threaded rod (11) is threadedly connected to the fixed base (1), and a rotating block (15) is fixedly connected to the top end of the threaded rod (11).
6. The mortar and pestle fixing device for RNA extraction according to claim 5, characterized in that, The tray (13) is provided with a rotating groove (14), and the rotating block (15) is located in the rotating groove (14) and is rotatably connected to the rotating groove (14).
7. The mortar and pestle fixing device for RNA extraction according to claim 1, characterized in that, A support block (2) is fixedly connected to the lower surface of the fixed base (1), and the support block (2) is located on both sides of the threaded rod (11).