CN220759318U - PCR test tube fixing device - Google Patents

Abstract

The utility model discloses a PCR test tube fixing device, which relates to the technical field of biology and aims at solving the problems that in the prior art, the adjusting height can only be adjusted according to the position of an existing positioning hole, the adjusting height cannot be adjusted to a special height, the use requirement of the special working height cannot be met, the rotating angle of a test tube cannot be adjusted conveniently, and the special working angle cannot be adapted.

Description

PCR test tube fixing device

Technical Field

The utility model relates to the technical field of biology, in particular to a PCR test tube fixing device.

Background

The Chinese patent publication CN202020047784.4 discloses a fixing device for a preparation test tube for PCR amplification, which is used by mutually matching a bottom plate, supporting feet, a positioning tube, a positioning hole, a bolt, a rotating handle, a positioning block and a positioning ring, achieves the effect of adjusting the height of the test tube, and avoids toppling over through the bottom plate and the supporting feet, and a buffer block arranged on a clamp avoids the test tube from being crushed.

But still have following not enough, its height-adjusting only can adjust according to the position of current locating hole, can't adjust to special height, can't satisfy special work high user demand, and be inconvenient for adjusting the rotation angle of test tube, can't adapt to some special work angles.

Disclosure of Invention

In view of the problems existing in the prior art, the utility model discloses a PCR test tube fixing device, which adopts the technical scheme that the device comprises a bottom plate, wherein the bottom of the bottom plate is also provided with supporting feet, a positioning tube is arranged on the bottom plate, a positioning ring for placing a test tube is arranged above the bottom plate on the right side of the positioning tube, a fixing ring is arranged on the positioning tube in a sliding manner, a rotating hand wheel is further connected with the fixing ring through a bolt, the positioning ring is connected with one end of a positioning block through a connecting rod, the other end of the positioning block is connected with the fixing ring, a fixing component is arranged inside the positioning tube, and a limiting component is arranged in the connecting rod, so that the height is convenient to adjust.

As a preferable technical scheme of the utility model, the fixing component further comprises a plurality of groups of connecting rods and first hinges, wherein the connecting rods are connected through the first hinges to form a diamond frame, and the upper end and the lower end of the fixing component are connected with limiting blocks, so that the height of the fixing ring is convenient to control.

As a preferable technical scheme of the utility model, the left end and the right end of the fixing component are connected with the locating plates, the right side of the fixing component is convexly provided with the sliding blocks, the inner wall of the locating pipe is provided with the first sliding grooves matched with the position and the size of the sliding blocks, the left side of the fixing component is provided with the rotating shafts which are connected with the bolts, the locating pipe is also provided with the guide rail grooves for the bolts to move up and down, and the fixing ring is also provided with the first threaded holes matched with the bolts, so that the bolts can move up and down conveniently.

As a preferable technical scheme of the utility model, a second chute is formed in the positioning block, the connecting rod is slidably connected in the positioning block through the second chute, a limit screw for fixing the connecting rod is further arranged on the positioning block, a second threaded hole for installing the limit screw is further formed in the positioning block, and the inner diameter size of the second chute is larger than the outer diameter size of the connecting rod, so that the connecting rod is more convenient for angle adjustment.

As a preferable technical scheme of the utility model, the limiting assembly further comprises a plurality of groups of stop rods and reset springs, wherein each stop rod is provided with a plurality of groups of stop rods, adjacent stop rods are connected through a second hinge, the connecting rod is provided with a mounting groove, the reset springs are connected with the stop rods through sliding rods, and the sliding rods at two ends of the limiting assembly are mounted in the mounting groove through the reset springs, so that the connecting rod cannot easily rotate in the positioning block.

The utility model has the beneficial effects that: according to the utility model, through the locating tube, the fixing component arranged on the locating tube and the fixing ring arranged on the locating tube, the fixing ring is used for adjusting the height on the locating tube, and the fixing ring can be fixed at any position on the locating tube through the cooperation of the bolt and the rotating hand wheel matched with the fixing component, the problem that the height can be adjusted at a plurality of fixing positions of the locating hole is solved, the device can adapt to more working heights, and the angle of the test tube can be adjusted by the connecting rod arranged in the locating block and the limiting component arranged in the connecting rod, so that the problem that the connecting rod rotates in the locating block by itself is avoided, and the rotating angle of the connecting rod is fixed through the arranged fixing screw.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below; throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at A;

FIG. 4 is an enlarged schematic view of the structure of the present utility model at B;

fig. 5 is a side view of the present utility model.

In the figure: 1. a bottom plate; 2. supporting feet; 3. a positioning tube; 5. a bolt; 6. rotating a hand wheel; 8. a positioning block; 9. a connecting rod; 11. a positioning ring; 15. a fixing ring; 16. a connecting rod; 17. a first hinge; 18. a slide block; 19. a limit component; 20. a return spring; 21. a slide bar; 22. a stop lever; 23. a second hinge; 24. a fixing assembly; 25. a limit screw; 26. a limiting block; 27. a positioning plate; 28. a rotating shaft.

Detailed Description

Example 1

As shown in fig. 1 to 5, the utility model discloses a PCR test tube fixing device, which adopts the technical scheme that the PCR test tube fixing device comprises a bottom plate 1, wherein a locating tube 3 is arranged on the bottom plate 1, a fixing ring 15 is arranged on the locating tube 3 in a sliding manner, a first threaded hole for installing a bolt 5 is formed in the fixing ring 15, one end of the bolt 5 is connected with a rotating hand wheel 6, the other end of the bolt 5 is connected with a rotating shaft 28, a fixing assembly 24 is further arranged in the locating tube 3, the fixing assembly 24 further comprises connecting rods 16 and first hinges 17, a plurality of groups of connecting rods 16 are combined into a diamond shape through the first hinges 17, the first hinges 17 at the upper end and the lower end of the fixing assembly 24 are arranged on limiting blocks 26, the first hinges 17 at the left side and the right side of the fixing assembly 24 are arranged on locating plates 27, a sliding block 18 is arranged on the right side locating plate 27 in a protruding manner, a first sliding groove for the sliding block 18 to slide up and down is arranged in the locating tube 3, and the rotating shaft 28 is arranged on the left locating plate 27.

In order to adjust the fixed angle of test tube, the second spout has still been seted up in the locating piece 8, connecting rod 9 passes through the second spout and installs in the locating piece 8, the external diameter size of connecting rod 9 is less than the internal diameter size of locating piece 8, still be equipped with the mounting groove on the connecting rod 9, install spacing subassembly 19 in the mounting groove, the slide bar 21 at spacing subassembly 19 both ends passes through reset spring 20 and installs in the mounting groove, still be connected with pin 22 on the slide bar 21, link to each other through second hinge 23 between two sets of pins 22, still be equipped with the spacing screw 25 that is used for fixed connecting rod 9 on the locating piece 8, still set up the second screw hole that is used for installing spacing screw 25 on the locating piece 8.

The bottom of the bottom plate 1 is also provided with supporting feet 2, the positioning block 8 is arranged on the positioning pipe 3, the positioning block 8 is also connected with a positioning ring 11 through a connecting rod 9, the positioning ring 11 is used for placing a test tube, and the positioning pipe 3 is also provided with a guide rail groove for the vertical sliding of the bolt 5.

The working principle of the utility model is as follows: when the test bed is used, the supporting legs 2 are contacted with the surface of the test bed, the fixing rings 15 are moved up and down, the test tubes are adjusted to the required positions, meanwhile, the limiting assemblies 19 in the positioning tubes 3 slide up and down simultaneously, the rotating hand wheels 6 are rotated to enable the bolts 5 to move towards the inside of the positioning tubes 3, diamond-shaped frames formed by the connecting rods 16 and the first hinges 17 in the fixing assemblies 24 connected with the bolts extend in the up and down directions, the limiting blocks 26 are contacted with the inner walls of the positioning tubes 3, the heights of the fixing rings 15 are fixed, test tubes are placed in the positioning rings 11, the test tubes can be adjusted to different angles and positions by adjusting the lengths and the rotating angles of the connecting rods 9 in the second sliding grooves of the positioning blocks 8, the limiting assemblies 19 arranged on the connecting rods 9 push the sliding rods 21, the blocking rods 22 are driven to move forwards by the reset springs 20, the blocking rods 22 connected with the second hinges 23 are enabled not to rotate easily in the inside of the positioning blocks 8, and the connecting rods 9 are enabled to be fixed in the length and the angle of the connecting rods 8 by rotating the limiting screws 25.

The mechanical connection according to the utility model is a customary practice adopted by the person skilled in the art, and the technical teaching can be obtained by a limited number of tests, which belongs to the common general knowledge.

The components not described in detail herein are prior art.

Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.

Claims (5)

1. The utility model provides a PCR test tube fixing device, includes bottom plate (1), the bottom of bottom plate (1) still is equipped with supporting legs (2), be equipped with registration arm (3) on bottom plate (1), the right side of registration arm (3) bottom plate (1) top is equipped with and is used for placing holding ring (11) of test tube, its characterized in that: the locating pipe (3) is provided with a fixed ring (15) in a sliding mode, the fixed ring (15) is further connected with a rotary hand wheel (6) through a bolt (5), the locating ring (11) is connected with one end of a locating block (8) through a connecting rod (9), the other end of the locating block (8) is connected with the fixed ring (15), a fixed component (24) is arranged inside the locating pipe (3), and a limiting component (19) is arranged in the connecting rod (9).

2. The PCR tube holder as claimed in claim 1, wherein: the fixing assembly (24) further comprises connecting rods (16) and first hinges (17), the connecting rods (16) are provided with a plurality of groups, the connecting rods are connected through the first hinges (17) to form a diamond frame, and limiting blocks (26) are connected to the upper end and the lower end of the fixing assembly (24).

3. The PCR tube holder as claimed in claim 2, wherein: the utility model discloses a fixed subassembly, including fixed subassembly (24), fixed subassembly (24) are connected with locating plate (27), right side locating plate (27) epirelief is equipped with slider (18), locating tube (3) inner wall be equipped with slider (18) position size assorted first spout, the left side be equipped with pivot (28) on locating plate (27), pivot (28) with bolt (5) link to each other, still be equipped with on locating tube (3) be used for bolt (5) reciprocates's guide rail groove, still be equipped with on fixed ring (15) with bolt (5) assorted first screw hole.

4. The PCR tube holder as claimed in claim 1, wherein: the positioning block (8) is internally provided with a second sliding groove, the connecting rod (9) is slidably connected with the positioning block (8) through the second sliding groove, the positioning block (8) is further provided with a limiting screw (25) for fixing the connecting rod (9), the positioning block (8) is further provided with a second threaded hole for installing the limiting screw (25), and the inner diameter size of the second sliding groove is larger than the outer diameter size of the connecting rod (9).

5. The PCR tube holder as claimed in claim 4, wherein: spacing subassembly (19) still includes pin (22) and reset spring (20), pin (22) are equipped with the multiunit, and is adjacent link to each other through second hinge (23) between pin (22), the mounting groove has been seted up on connecting rod (9), reset spring (20) pass through slide bar (21) with pin (22) link to each other, slide bar (21) at the both ends of spacing subassembly (19) pass through reset spring (20) are installed in the mounting groove.