High-precision stable positioning mechanism for hole square plate

Abstract

The utility model relates to the technical field of hole square plate fixing devices, and discloses a high-precision stable positioning mechanism for a hole square plate, which comprises a bottom plate, a placing groove is arranged at the upper end of the bottom plate, a positioning hole is arranged at the upper end of the bottom plate, the upper end of the bottom plate is fixedly connected with a support, and a pressing assembly is arranged above the bottom plate. According to the high-precision stable positioning mechanism for the hole square plate, the rotating wheel and the rotating rod are installed in an eccentric connection mode, when the high-precision stable positioning mechanism is used, a hole square plate body is placed in a containing groove, an external driving wheel makes contact with a rubber ring on the outer side of the rotating wheel, and the external driving wheel is started to drive the rotating wheel to rotate till the circle center of the rotating wheel is located under the circle center of the rotating rod; when the external driving wheel stops driving, the pressing plate makes contact with the hole square plate body, so that the hole square plate body is pressed, the position of the pressing plate is conveniently controlled through the eccentric connection design, the pressing effect is good, the weight reduction groove is formed in the outer side of the support, the weight of the device is reduced, meanwhile, the structural strength of the support is improved, and the support is durable.

Description

Technical Field

[0001] The utility model relates to the technical field of hole square plate fixing devices, in particular to a high-precision stable positioning mechanism for hole square plates. Background Art

[0002] The deep-well plate, also known as the deep-well plate, is a laboratory plate. While maintaining the same external dimensions as the ordinary microplate, the volume of each well is increased by increasing the depth of the well. In biomedical research and biochemical experiments, the deep-well plate is often used for sample processing, reaction mixing and high-throughput screening. When conducting experiments, a stable positioning device is required to fix the deep-well plate.

[0003] China Utility Model Patent Publication No.: CN 215050133 U, discloses: a deep-well plate fixing device for a nucleic acid extraction instrument, which facilitates manual control of the fixing of the deep-well plate body through the mutual cooperation of the clamping component and the driving component, has strong automation, and makes the deep-well plate body subject to forces in two directions, which helps to improve the clamping stability of the deep-well plate body. However, the structure of the deep-well plate fixing device is relatively complex, the manufacturing cost is high, and there are many fixing points with the deep-well plate, which easily causes the deep-well plate to deform during fixing, causing damage to the deep-well plate. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a high-precision and stable positioning mechanism for a square hole plate, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a high-precision and stable positioning mechanism for a hole square plate, comprising a bottom plate, a placement groove is provided on the upper end of the bottom plate, a positioning hole is provided on the upper end of the bottom plate, a bracket is fixedly connected to the upper end of the bottom plate, a pressing component is provided above the bottom plate, and a hole square plate body is placed on the upper end of the bottom plate;

[0006] The clamping assembly comprises a rotating rod, a rotating wheel, a rubber ring and a pressing plate. The rotating wheel is fixedly connected to the outer side of the rotating rod. The rubber ring is arranged on the outer side of the rotating wheel. The pressing plate is fixedly connected to the outer side of the rotating rod.

[0007] Preferably, the bottom plate has a thickness of 4 mm to 5 mm, and the placement groove is adapted to the hole square plate body.

[0008] Through the above technical solution, a placement groove is opened on the bottom plate for placing the hole square plate body and limiting the hole square plate body. Four hole square plate bodies can be placed, and the limiting effect is good.

[0009] Preferably, the cross section of the positioning hole is a funnel-shaped structure, and four identical placement grooves are provided.

[0010] Through the above technical solution, positioning holes are provided, and bolts are passed through the positioning holes to install the bottom plate on the table top and fix it firmly.

[0011] Preferably, the brackets are provided with five identical ones, a weight-reducing groove is provided on the outer side of the brackets, and a clamping assembly is rotatably connected between every two of the brackets.

[0012] Through the above technical solution, a weight-reducing groove is opened on the outside of the bracket to reduce the weight of the device, while improving the structural strength of the bracket and making it more durable.

[0013] Preferably, two rotating wheels are fixedly connected to the outer side of each rotating rod, and the rotating wheels are eccentrically connected to the rotating rod.

[0014] Through the above technical scheme, a rotating wheel is provided, and the rotating wheel and the rotating rod are installed in an eccentric connection manner. When in use, the hole square plate body is placed in the placement groove, and the external driving wheel contacts the rubber ring on the outside of the rotating wheel. The external driving wheel is started to drive the rotating wheel to rotate until the center of the rotating wheel is directly below the center of the rotating rod. The external driving wheel stops driving, and at this time, the pressure plate contacts the hole square plate body, thereby pressing the hole square plate body. The eccentric connection design facilitates the control of the position of the pressure plate, and the pressing effect is good.

[0015] Preferably, the rubber ring is made of nitrile rubber material, and the rubber ring is sleeve-connected to the rotating wheel.

[0016] Through the above technical solution, a rubber ring made of nitrile rubber material is provided, which has strong wear resistance and at the same time improves the friction with the external drive wheel to improve the running smoothness.

[0017] Preferably, the connecting line between the center of the rotating wheel and the center of the rotating rod and the pressing plate are perpendicular to each other, and the end of the pressing plate away from the rotating rod is chamfered.

[0018] Through the above technical solution, the pressure plate is chamfered, and when it contacts the hole square plate body with holes, the chamfered arc surface of the pressure plate can contact the hole square plate body, thereby improving the fixing effect.

[0019] Compared with the prior art, the utility model provides a high-precision and stable positioning mechanism for a square plate with holes, which has the following beneficial effects:

[0020] 1. The high-precision and stable positioning mechanism for the square plate with holes is provided with a rotating wheel. The rotating wheel and the rotating rod are installed in an eccentric connection manner. When in use, the square plate body is placed in the placement groove to limit the outer side of the square plate body. The external driving wheel contacts the rubber ring on the outer side of the rotating wheel. The external driving wheel is started to drive the rotating wheel to rotate until the center of the rotating wheel is directly below the center of the rotating rod. The external driving wheel stops driving. At this time, the pressing plate contacts the square plate body with holes, thereby pressing the square plate body with holes. The eccentric connection design is convenient for controlling the position of the pressing plate, and the pressing effect is good. The square plate body with holes is not easy to shake when it is used for oscillation in the experiment, which is convenient for the experiment. By controlling the rotation angle of the rotating wheel, the pressing plate can press the square plate body with holes of different heights, and the square plate body can be fixed with high precision.

[0021] 2. This high-precision and stable positioning mechanism for the square plate with holes has a weight-reducing groove on the outside of the bracket to reduce the weight of the device and improve the structural strength of the bracket, making it more durable. A rubber ring made of nitrile rubber material is provided, which has strong wear resistance and improves the friction with the external drive wheel to improve the running smoothness. The pressure plate is chamfered, and when it contacts the body of the square plate with holes, the chamfered arc surface of the pressure plate can contact the body of the square plate with holes, thereby improving the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0025] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 4 ;

[0026] Figure 5 This is an enlarged structural diagram of the clamping assembly of the utility model Figure 1 .

[0027] Among them: 1. bottom plate; 2. placement groove; 3. positioning hole; 4. bracket; 5. clamping assembly; 501. rotating rod; 502. rotating wheel; 503. rubber ring; 504. pressing plate; 6. hole square plate body. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: Figure 1-5 As shown, the high-precision and stable positioning mechanism for a hole square plate provided by the utility model comprises a bottom plate 1, a placement groove 2 is opened at the upper end of the bottom plate 1, a positioning hole 3 is opened at the upper end of the bottom plate 1, a bracket 4 is fixedly connected to the upper end of the bottom plate 1, a pressing component 5 is arranged above the bottom plate 1, and a hole square plate body 6 is placed at the upper end of the bottom plate 1;

[0030] The clamping assembly 5 includes a rotating rod 501 , a rotating wheel 502 , a rubber ring 503 and a pressing plate 504 . The rotating wheel 502 is fixedly connected to the outer side of the rotating rod 501 . The rubber ring 503 is arranged on the outer side of the rotating wheel 502 . The pressing plate 504 is fixedly connected to the outer side of the rotating rod 501 .

[0031] Specifically, the bottom plate 1 has a thickness of 4 mm to 5 mm, and the placement groove 2 is adapted to the hole square plate body 6. The advantage is that the bottom plate 1 is provided with the placement groove 2 for placing the hole square plate body 6 and limiting the hole square plate body 6, and four hole square plate bodies 6 can be placed, and the limiting effect is good.

[0032] Specifically, the cross section of the positioning hole 3 is a funnel-shaped structure, and four identical placement slots 2 are provided. The advantage is that the positioning hole 3 is provided, and the bottom plate 1 is installed on the table surface by using bolts passing through the positioning hole 3, and the bottom plate 1 is fixed firmly.

[0033] Specifically, the bracket 4 is provided with five identical ones, and a weight-reducing groove is provided on the outer side of the bracket 4, and a pressing assembly 5 is rotatably connected between every two brackets 4. The advantage is that the weight-reducing groove is provided on the outer side of the bracket 4, which reduces the weight of the device and improves the structural strength of the bracket 4, making it more durable.

[0034] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0035] Specifically, two rotating wheels 502 are fixedly connected to the outside of each rotating rod 501, and the rotating wheels 502 and the rotating rod 501 are eccentrically connected. The advantage is that the rotating wheels 502 are provided, and the rotating wheels 502 and the rotating rod 501 are installed in an eccentric connection manner. When in use, the hole square plate body 6 is placed in the placement groove 2, and the external driving wheel contacts the rubber ring 503 on the outside of the rotating wheel 502. The external driving wheel is started to drive the rotating wheel 502 to rotate until the center of the rotating wheel 502 is located directly below the center of the rotating rod 501. The external driving wheel stops driving, and at this time, the pressing plate 504 contacts the hole square plate body 6, thereby pressing the hole square plate body 6. The eccentric connection design facilitates the control of the position of the pressing plate 504, and the pressing effect is good.

[0036] Specifically, the rubber ring 503 is made of nitrile rubber material, and the rubber ring 503 is sleeve-connected with the rotating wheel 502. The advantage is that the rubber ring 503 made of nitrile rubber material is provided, which has strong wear resistance, and at the same time improves the friction with the external driving wheel, thereby improving the running smoothness.

[0037] Specifically, the connecting line between the center of the rotating wheel 502 and the center of the rotating rod 501 and the pressing plate 504 are perpendicular to each other, and the end of the pressing plate 504 away from the rotating rod 501 is chamfered. The advantage is that the chamfered arc surface of the pressing plate 504 can contact the hole square plate body 6 when contacting the hole square plate body 6, thereby improving the fixing effect.

[0038] Working principle: When in use, use bolts to pass through the positioning holes 3 to install the bottom plate 1 on the table top and fix it firmly. When in use, place the hole square plate body 6 in the placement groove 2. The placement groove 2 is the outer limit of the hole square plate body 6. The rotating wheel 502 and the rotating rod 501 are installed in an eccentric connection. The external driving wheel contacts the rubber ring 503 on the outer side of the rotating wheel 502. Start the external driving wheel to drive the rotating wheel 502 to rotate until the center of the rotating wheel 502 is directly below the center of the rotating rod 501. The external driving wheel stops driving. At this time, the pressing plate 504 contacts the hole square plate body 6, thereby pressing the hole square plate body 6 The eccentric connection design makes it easy to control the position of the pressing plate 504, and the pressing effect is good. By controlling the rotation angle of the rotating wheel 502, the pressing plate 504 can press the hole square plate body 6 of different heights, and the hole square plate body 6 can be fixed with high precision. A rubber ring 503 made of nitrile rubber material is provided, which has strong wear resistance and improves the friction with the external drive wheel, thereby improving the running smoothness. The pressing plate 504 is chamfered, and when it contacts the hole square plate body 6 with holes, the chamfered arc surface of the pressing plate 504 can contact the hole square plate body 6, thereby improving the fixing effect.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision and stable positioning mechanism for a square plate with holes, comprising a bottom plate (1), characterized in that: The upper end of the bottom plate (1) is provided with a placement groove (2), the upper end of the bottom plate (1) is provided with a positioning hole (3), the upper end of the bottom plate (1) is fixedly connected with a bracket (4), a clamping assembly (5) is arranged above the bottom plate (1), and a perforated square plate body (6) is placed on the upper end of the bottom plate (1); The clamping assembly (5) comprises a rotating rod (501), a rotating wheel (502), a rubber ring (503) and a pressing plate (504); the rotating rod (501) is fixedly connected to the outer side of the rotating rod (501); the rotating wheel (502) is provided with a rubber ring (503) on the outer side of the rotating wheel (502); and the pressing plate (504) is fixedly connected to the outer side of the rotating rod (501).

2. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: The bottom plate (1) has a thickness of 4 mm to 5 mm, and the placement groove (2) is compatible with the hole square plate body (6).

3. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: The cross section of the positioning hole (3) is a funnel-shaped structure, and the placement grooves (2) are provided with four identical ones.

4. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: The brackets (4) are provided with five identical ones, and a weight-reducing groove is provided on the outer side of the brackets (4). A clamping assembly (5) is rotatably connected between every two of the brackets (4).

5. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: Two rotating wheels (502) are fixedly connected to the outer side of each rotating rod (501), and the rotating wheels (502) and the rotating rod (501) are eccentrically connected.

6. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: The rubber ring (503) is made of nitrile rubber material, and the rubber ring (503) is sleeve-connected to the rotating wheel (502).

7. The high-precision and stable positioning mechanism for a square plate with holes according to claim 1, characterized in that: The connecting line between the center of the rotating wheel (502) and the center of the rotating rod (501) and the pressing plate (504) are perpendicular to each other, and one end of the pressing plate (504) away from the rotating rod (501) is chamfered.

Images