Stable positioning device for hole square plate

Abstract

The utility model relates to the technical field of hole square plate fixing devices, and discloses a stable positioning device for a hole square plate, which comprises a bottom frame, a bottom plate is fixedly connected to the upper end of the bottom frame, a side clamping plate is arranged at the upper end of the bottom plate, and a center clamping plate is arranged at the upper end of the bottom plate. According to the stable positioning device for the hole square plate, when a hole square plate body is fixed, a ball handle is pulled upwards, a movable rod and a pressing block are driven to move upwards along a transverse rod, a spring is stressed and compressed, the hole square plate body is placed in a groove formed by a side clamping plate and a center clamping plate, the side face of the hole square plate body is limited, and the ball handle is loosened; the springs reset to drive the pressing blocks to move downwards to press the hole square plate bodies on the bottom plate, fixing is simple, the center clamping plates and the side clamping plates are in special shapes, the outer sides of the hole square plate bodies are conveniently limited through the combined structure, the eight hole square plate bodies can be fixed only through the three center clamping plates and the two side clamping plates which are not connected, materials are saved, and the production efficiency is improved. And the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of square-hole plate fixing devices, and specifically relates to a stable positioning device for square-hole plates. Background Art

[0002] The square-hole plate, also called the deep-hole plate, is a kind of plate used in laboratories. On the basis of maintaining the same appearance size as the ordinary microplate, the volume of each hole is increased by increasing the depth of the hole. In biomedical research and biochemical experiments, the square-hole 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 square-hole plate.

[0003] Chinese Utility Model Patent Publication No.: CN 215050133 U, discloses: a deep-hole plate fixing device for a nucleic acid extractor. Through the mutual cooperation of the clamping assembly and the driving assembly, it is convenient to manually control the fixing of the deep-hole plate body, with strong automation, enabling the deep-hole plate body to be subjected to forces in two directions, which helps to improve the clamping stability of the deep-hole plate body. However, the structure of this deep-hole plate fixing device is relatively complex, the manufacturing cost is relatively high, and there are many fixing points with the deep-hole plate. It is easy to deform the deep-hole plate during fixing, resulting in damage to the deep-hole plate. Summary of the Invention

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

[0005] The technical solution adopted by the utility model is: a stable positioning device for square-hole plates, including a chassis, a bottom plate is fixedly connected to the upper end of the chassis, a side clamping plate is arranged on the upper end of the bottom plate, a central clamping plate is arranged on the upper end of the bottom plate, a fastening screw is arranged on the upper end of the bottom plate, a bracket is fixedly connected to the upper end of the bottom plate, a cross bar is fixedly connected to the upper end of the bracket, a pressing assembly is arranged on the upper end of the cross bar, and a square-hole plate body is placed on the upper end of the bottom plate;

[0006] The pressing assembly includes a moving rod, a top seat, a ball handle, a pressing block and a spring. The upper end of the moving rod is fixedly connected to the top seat, the ball handle is arranged on the upper end of the top seat, the lower end of the moving rod is fixedly connected to the pressing block, and the spring is fixedly connected to the upper end of the pressing block.

[0007] Preferably, two side clamping plates are symmetrically arranged, and the side clamping plates are in an "E" shape structure.

[0008] Through the above technical solution, side clamping plates are provided and cooperate with the central clamping plate to limit the square-hole plate body.

[0009] Preferably, three identical central clamping plates are provided, and the central clamping plates are in a "king" shape structure.

[0010] Through the above technical solution, the central clamping plate and the side clamping plates are provided with special shapes, and the combined structure facilitates the outer limit of the square hole plate body.

[0011] Preferably, the three central clamping plates are arranged between two central clamping plates, the distance between the central clamping plate and the adjacent side clamping plate is equal to the distance between two adjacent central clamping plates, and the central clamping plate and the side clamping plate assembly can accommodate eight square hole plate bodies.

[0012] Through the above technical solution, only three unconnected central clamping plates and two side clamping plates can fix eight square hole plate bodies, saving materials, reducing the manufacturing cost, with a clever structure and being very practical.

[0013] Preferably, the side clamping plate is tightly locked and connected to the bottom plate through a fastening screw, and the central clamping plate is tightly locked and connected to the bottom plate through a fastening screw.

[0014] Through the above technical solution, the side clamping plate and the central clamping plate are tightly locked and connected to the chassis and the bottom plate through fastening screws, and the installation is relatively simple.

[0015] Preferably, eight identical pressing assemblies are provided, and the moving rod is slidably connected to the cross bar.

[0016] Through the above technical solution, when fixing the square hole plate body, pull up the ball handle, drive the moving rod and the pressing block to move upward along the cross bar, the spring is compressed under force, place the square hole plate body in the groove formed by the side clamping plate and the central clamping plate to limit the side of the square hole plate body, release the ball handle, the spring resets and drives the pressing block to move downward to press the square hole plate body against the bottom plate, and the square hole plate body will not shake during the experiment, with simple fixation and being very practical.

[0017] Preferably, the pressing block is made of nitrile rubber material, the spring is sleeved outside the moving rod, and the spring is arranged at the lower end of the cross bar.

[0018] Through the above technical solution, a pressing block made of nitrile rubber material is provided, which has strong wear resistance and is not easy to damage the square hole plate body when fixing the square hole plate body.

[0019] Compared with the prior art, the present utility model provides a stable positioning device for a square hole plate, having the following beneficial effects:

[0020] 1. For the stable positioning device for the square hole plate, the central clamping plate and the side clamping plates are provided with special shapes, and the combined structure facilitates the outer limit of the square hole plate body. Only three unconnected central clamping plates and two side clamping plates can fix eight square hole plate bodies, saving materials, reducing the manufacturing cost, with a clever structure and being very practical;

[0021] 2. The stable positioning device for the square hole plate is provided with a pressing component. When fixing the square hole plate body, pull the ball handle upward, drive the moving rod and the pressing block to move upward along the cross bar, the spring is compressed under force, place the square hole plate body in the groove formed by the side clamping plate and the central clamping plate to limit the side of the square hole plate body, release the ball handle, the spring resets and drives the pressing block to move downward to press the square hole plate body tightly on the bottom plate. The square hole plate body will not shake during the experiment, and the fixation is simple and very practical. Description of the Drawings

[0022] Figure 1 Schematic three-dimensional structure of the present utility model Figure 1 ;

[0023] Figure 2 Schematic three-dimensional structure of the present utility model Figure 2 ;

[0024] Figure 3 Schematic three-dimensional structure of the present utility model Figure 3 ;

[0025] Figure 4 Schematic exploded structure diagram of the present utility model;

[0026] Figure 5 Schematic enlarged structure diagram of the pressing component of the present utility model.

[0027] Wherein: 1. Underframe; 2. Bottom plate; 3. Side clamping plate; 4. Central clamping plate; 5. Fastening screw; 6. Bracket; 7. Cross bar; 8. Pressing component; 801. Moving rod; 802. Top seat; 803. Ball handle; 804. Pressing block; 805. Spring; 9. Square hole plate body. Detailed Description of the Embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1: As Figures 1-5 shown, a stable positioning device for a square hole plate provided by the present utility model includes an underframe 1, the upper end of the underframe 1 is fixedly connected with a bottom plate 2, the upper end of the bottom plate 2 is provided with a side clamping plate 3, the upper end of the bottom plate 2 is provided with a central clamping plate 4, the upper end of the bottom plate 2 is provided with a fastening screw 5, the upper end of the bottom plate 2 is fixedly connected with a bracket 6, the upper end of the bracket 6 is fixedly connected with a cross bar 7, the upper end of the cross bar 7 is provided with a pressing component 8, and a square hole plate body 9 is placed on the upper end of the bottom plate 2;

[0030] The pressing component 8 includes a moving rod 801, a top seat 802, a ball handle 803, a pressing block 804, and a spring 805. The upper end of the moving rod 801 is fixedly connected to the top seat 802. The ball handle 803 is arranged at the upper end of the top seat 802. The lower end of the moving rod 801 is fixedly connected to the pressing block 804. The spring 805 is fixedly connected to the upper end of the pressing block 804.

[0031] Specifically, there are two symmetrically arranged side clamping plates 3, and the side clamping plates 3 are in an "E" - shaped structure. The advantage is that the side clamping plates 3 are provided and cooperate with the central clamping plate 4 to limit the position of the square - hole plate body 9.

[0032] Specifically, there are three identical central clamping plates 4, and the central clamping plates 4 are in a "king" - shaped structure. The advantage is that the central clamping plates 4 and the side clamping plates 3 have special shapes, and the combined structure is convenient for limiting the outside of the square - hole plate body 9.

[0033] Specifically, the three central clamping plates 4 are arranged between two central clamping plates 4. The distance between the central clamping plate 4 and the adjacent side clamping plate 3 is equal to the distance between two adjacent central clamping plates 4. The combination of the central clamping plates 4 and the side clamping plates 3 can accommodate eight square - hole plate bodies 9. The advantage is that only three unconnected central clamping plates 4 and two side clamping plates 3 can fix eight square - hole plate bodies 9, saving materials, reducing the manufacturing cost, with a clever structure and being very practical.

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

[0035] Specifically, the side clamping plates 3 are tightly locked and connected to the bottom plate 2 through fastening screws 5, and the central clamping plates 4 are tightly locked and connected to the bottom plate 2 through fastening screws 5. The advantage is that the side clamping plates 3 and the central clamping plates 4 are tightly locked and connected to the chassis 1 and the bottom plate 2 through fastening screws 5, and the installation is relatively simple.

[0036] Specifically, there are eight identical pressing components 8, and the moving rod 801 is slidably connected to the cross - bar 7. The advantage is that when the pressing component 8 is provided and used to fix the square - hole plate body 9, the ball handle 803 is pulled upward, driving the moving rod 801 and the pressing block 804 to move upward along the cross - bar 7. The spring 805 is compressed under force. The square - hole plate body 9 is placed in the groove formed by the side clamping plates 3 and the central clamping plates 4 to limit the side of the square - hole plate body 9. When the ball handle 803 is released, the spring 805 resets and drives the pressing block 804 to move downward to press the square - hole plate body 9 tightly on the bottom plate 2. The square - hole plate body 9 will not shake during the experiment, with simple fixation and being very practical.

[0037] Specifically, the briquette 804 is made of nitrile rubber material. The spring 805 is sleeved outside the moving rod 801, and the spring 805 is arranged at the lower end of the cross bar 7. The advantage is that the briquette 804 made of nitrile rubber material is set, which has strong wear resistance and is not easy to damage the orifice plate body 9 when fixing the orifice plate body 9.

[0038] Working principle: When in use, when fixing the orifice plate body 9, pull up the ball handle 803, drive the moving rod 801 and the briquette 804 to move upward along the cross bar 7, and the spring 805 is compressed by force. Place the orifice plate body 9 in the groove formed by the side clamping plate 3 and the central clamping plate 4 to limit the side of the orifice plate body 9. Release the ball handle 803, and the spring 805 resets to drive the briquette 804 to move downward to press the orifice plate body 9 tightly on the bottom plate 2. The orifice plate body 9 will not shake during the experiment. The fixing is simple and very practical. The briquette 804 made of nitrile rubber material has strong wear resistance and is not easy to damage the orifice plate body 9 when fixing the orifice plate body 9. The central clamping plate 4 and the side clamping plate 3 are provided with special shapes, and the combined structure is convenient for limiting the outside of the orifice plate body 9. Only three unconnected central clamping plates 4 and two side clamping plates 3 can fix eight orifice plate bodies 9, saving materials and reducing the manufacturing cost. The structure is ingenious and very practical.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable positioning device for a square hole plate, comprising a chassis (1), characterized in that: A bottom frame (1) is fixedly connected to the upper end of a bottom plate (2). A side clamping plate (3) is arranged on the upper end of the bottom plate (2). A central clamping plate (4) is arranged on the upper end of the bottom plate (2). A fastening screw (5) is arranged on the upper end of the bottom plate (2). A bracket (6) is fixedly connected to the upper end of the bottom plate (2). A cross bar (7) is fixedly connected to the upper end of the bracket (6). A pressing assembly (8) is arranged on the upper end of the cross bar (7). A square-hole plate body (9) is placed on the upper end of the bottom plate (2). The pressing assembly (8) includes a moving rod (801), a top seat (802), a ball handle (803), a pressing block (804) and a spring (805). The upper end of the moving rod (801) is fixedly connected to the top seat (802). The ball handle (803) is arranged on the upper end of the top seat (802). The lower end of the moving rod (801) is fixedly connected to the pressing block (804). The spring (805) is fixedly connected to the upper end of the pressing block (804).

2. The stable positioning device for a square-hole plate according to claim 1, characterized in that: There are two side clamping plates (3) symmetrically arranged, and the side clamping plate (3) is in an "E" - shaped structure.

3. The stable positioning device for a square-hole plate according to claim 1, characterized in that: There are three identical central clamping plates (4), and the central clamping plate (4) is in a "king" - shaped structure.

4. A stable positioning device for a square-hole plate according to claim 1, characterized in that: The three central clamping plates (4) are arranged between the two central clamping plates (4). The distance between the central clamping plate (4) and the adjacent side clamping plate (3) is equal to the distance between two adjacent central clamping plates (4). The combination of the central clamping plate (4) and the side clamping plate (3) can accommodate eight square - hole plate bodies (9).

5. A stable positioning device for a square-hole plate according to claim 1, characterized in that: The side clamping plate (3) is locked and connected to the bottom plate (2) through the fastening screw (5). The central clamping plate (4) is locked and connected to the bottom plate (2) through the fastening screw (5).

6. A stable positioning device for a square-hole plate according to claim 1, characterized in that: There are eight identical pressing assemblies (8), and the moving rod (801) is slidably connected to the cross bar (7).

7. A stable positioning device for a square-hole plate according to claim 1, characterized in that: The pressing block (804) is made of nitrile rubber material. The spring (805) is sleeved on the outside of the moving rod (801), and the spring (805) is arranged at the lower end of the cross bar (7).

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