Pressing rod device of hematology analyzer

Abstract

The utility model relates to the technical field of medical equipment, and discloses a compression bar device of a hematology analyzer, which comprises a base, the pressing rod assembly is arranged on the movable rod, the pressing rod assembly is used for pressing the edge loading body and comprises a mounting column, a threaded head and a rubber extrusion head, the mounting column is movably connected with the base, the threaded head is in threaded connection with the mounting column, the movable rod is elastically connected with the mounting column, and the rubber extrusion head is fixedly connected with the movable rod; the installation column ascends and descends to drive the movable rod to ascend and descend, the movable rod drives the extrusion head to ascend and descend, the extrusion head deforms when abutting against the loading body and is attached to the surface of the loading body, force of the extrusion head is evenly distributed on the loading body, the movable rod upwards pushes the first spring when moving downwards, and the first spring is extruded to deform. The first spring deforms to generate force opposite to the movable rod, and through offset of the force, when the movable rod drives the extrusion head to be attached to the loading body, the situation that the loading body is damaged due to the fact that the force of the movable rod is too large is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and specifically relates to a pressing rod device of a blood cell analyzer. Background Art

[0002] A blood cell analyzer, also known as a blood cell counter, hemocytometer, etc., is one of the widely used instruments in hospital clinical examinations. With the rapid development of computer technology in recent years, the technology of blood cell analysis has changed from three-part classification to five-part classification, from two-dimensional space to three-dimensional space. Moreover, we have noticed that many of the five-classification technologies of modern blood cell analyzers adopt the same technologies as those of very advanced flow cytometers today, such as scattered light detection technology, sheath flow technology, laser technology, and so on.

[0003] After retrieval, a document with the publication number (CN221775U) discloses a blood cell analyzer and a pressing rod device for the blood cell analyzer. The pressing rod device includes a main body and a driving component. The driving component includes a sliding member and a driving member. The sliding member is slidably sleeved on the main body, and the driving member is connected between the main body and the sliding member to provide a driving force between the main body and the sliding member. When used for a blood cell analyzer, the sliding member is used to connect a slider on the blood cell analyzer.

[0004] The above device adopts a clever telescopic structure, with a simple structure and convenient installation and use; when the pressing rod device is applied to a blood cell analyzer, it can achieve uniform downward pressing of the piston pressing rod while the card is under balanced force, thus effectively avoiding the problem of card warping at a very low cost.

[0005] In actual use, the above device does not consider the direct contact between the pressing rod and the carrier. The pressing rod is lifted and lowered through the output shaft of transmission machinery such as motors and hydraulic presses, resulting in the inability to finely control the lifting force and causing damage to the carrier.

[0006] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0007] In order to solve the technical problem of uneven lifting force of the pressing rod, the basic concept of the technical solution adopted by the present utility model is:

[0008] A pressure rod device of a blood cell analyzer comprises a base, which is L-shaped as a whole, a loading platform is arranged on the base, and the loading platform is fixedly connected to the base; a movable rod, which is arranged on the base and movably connected to the base; a lifting assembly, which is arranged on the base and is used to lift and lower the movable rod; a pressing edge assembly, which is arranged on the movable rod and is used to press the edge of a carrier; a pressure rod assembly, which is arranged on the movable rod and is used to press the edge of the carrier, and the pressure rod assembly comprises a mounting column, a threaded head and a rubber extrusion head, the mounting column is movably connected to the base, the threaded head is threadedly connected to the mounting column, the movable rod is elastically connected to the mounting column, and the rubber extrusion head is fixedly connected to the movable rod.

[0009] As a preferred embodiment of the utility model, the pressure rod assembly also includes a first spring, one end of the first spring is fixedly connected to the mounting column, the other end of the first spring is fixedly connected to the movable rod, and the movable rod is slidably connected to the threaded head.

[0010] As a preferred embodiment of the utility model, the edge pressing assembly includes an abutment wheel and a mounting plate, the mounting plate is fixedly connected to the movable rod, the abutment wheels are symmetrically arranged at both ends of the mounting plate, and the abutment wheels are elastically connected to the mounting plate.

[0011] As a preferred embodiment of the utility model, the edge pressing assembly also includes a bracket and a screw rod, the screw rod is symmetrically arranged at both ends of the mounting plate, the screw rod is threadedly connected to the mounting plate, the bracket is rotatably connected to the screw rod, the bracket is slidably connected to the mounting plate, and the abutment wheel is elastically connected to the bracket.

[0012] As a preferred embodiment of the utility model, the edge pressing assembly further includes a slide groove and a sliding block, the slide groove is symmetrically arranged on the inner side of the bracket, the sliding block is elastically connected to the slide groove, and the abutment wheel is rotatably connected to the sliding block.

[0013] As a preferred embodiment of the utility model, the edge pressing assembly also includes a second spring, the second spring is arranged in the slide slot, one end of the second spring is fixedly connected to the slide slot, the other end of the second spring is fixedly connected to the sliding block, and the sliding block is fixedly connected to the slide slot.

[0014] As a preferred embodiment of the utility model, the lifting assembly includes a driving motor and a slider, the driving motor is fixedly connected to the base, the slider is drivingly connected to the output shaft of the driving motor, and the mounting column is fixedly connected to the slider.

[0015] As a preferred embodiment of the utility model, the lifting assembly further comprises a threaded rod, the output shaft of the driving motor is fixedly connected to the threaded rod, and the sliding block is threadedly connected to the threaded rod.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. A pressure rod device of a blood cell analyzer, wherein the lifting of the mounting column drives the lifting of the movable rod, and the movable rod drives the lifting of the extrusion head, and the extrusion head is deformed and fits the surface of the loading carrier when it abuts against the loading carrier, and the force of the extrusion head is evenly distributed on the loading carrier, and the movable rod pushes the first spring upward when it moves downward, and the first spring is deformed by the extrusion, and the deformation of the first spring generates a force opposite to the movable rod, and through the offset between the forces, when the movable rod drives the extrusion head to fit on the loading carrier, it is avoided that the force of the movable rod is too large, which causes damage to the loading carrier.

[0018] 2. The pressure rod device of the blood cell analyzer is manually rotated with a threaded head, and the threaded head drives the movable rod to rise and fall through the thread. The movable rod rises and falls to squeeze the first spring, thereby adjusting the elastic range of the first spring to adapt to carriers of different sizes.

[0019] 3. In the pressure rod device of the blood cell analyzer, the screw rod is rotated manually, and the screw rod drives the bracket to rise and fall through the threaded transmission, the carrier presses the abutment wheel upward, the abutment wheel drives the sliding block, the sliding block presses the second spring, the second spring is deformed and generates an opposite force, and the second spring pushes the abutment wheel to be in close contact with the carrier through the opposite force, and limits the position while the carrier is being tested to prevent the carrier from being separated from the loading platform due to external forces.

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure on the base of the utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of the pressure rod assembly of the utility model;

[0025] Figure 4 This is the structural intention of the edge pressing component of the utility model;

[0026] Figure 5 This is a schematic diagram of the disassembly of the pressure rod assembly of the utility model.

[0027] In the figure: 1. base; 11. loading platform; 2. driving motor; 21. threaded rod; 22. slider; 3. mounting column; 31. threaded head; 32. first spring; 4. rubber extrusion head; 41. movable rod; 5. abutment wheel; 51. bracket; 52. slide groove; 53. sliding block; 54. second spring; 6. mounting plate; 61. screw rod. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] Please refer to Figures 1-5 , a pressing rod device of a blood cell analyzer, comprising a base 1. The base 1 is integrally L-shaped. A loading platform 11 is arranged on the base 1, and the loading platform 11 is fixedly connected to the base 1; a movable rod 41 is arranged on the base 1, and the movable rod 41 is movably connected to the base 1; a lifting assembly is arranged on the base 1, and the lifting assembly is used for lifting and lowering the movable rod 41; a pressing edge assembly is arranged on the movable rod 41, and the pressing edge assembly is used for pressing the edge of the carrier; a pressing rod assembly is arranged on the movable rod 41, and the pressing rod assembly is used for pressing the carrier. The pressing rod assembly includes a mounting column 3, a threaded head 31, and a rubber extrusion head 4. The mounting column 3 is movably connected to the base 1, the threaded head 31 is threadedly connected to the mounting column 3, the movable rod 41 is elastically connected to the mounting column 3, and the rubber extrusion head 4 is fixedly connected to the movable rod 41. The pressing rod assembly further includes a first spring 32. One end of the first spring 32 is fixedly connected to the mounting column 3, and the other end of the first spring 32 is fixedly connected to the movable rod 41. The movable rod 41 is slidably connected to the threaded head 31. The lifting of the mounting column 3 drives the lifting of the movable rod 41, and the movable rod 41 drives the lifting of the extrusion head 4. When the extrusion head 4 abuts against the carrier, it deforms and fits the surface of the carrier, evenly distributing the force of the extrusion head 4 on the carrier. When the movable rod 41 moves downward, it pushes the first spring 32 upward. The first spring 32 is compressed and deformed, and the deformation of the first spring 32 generates a force opposite to that of the movable rod 41. Through the cancellation of the forces, when the movable rod 41 drives the extrusion head 4 to fit on the carrier, it avoids excessive force of the movable rod 41 causing damage to the carrier. Manually rotate the threaded head 31, and the threaded head 31 drives the lifting of the movable rod 41 through the thread. The lifting of the movable rod 41 compresses the first spring 32, thereby adjusting the elastic range of the first spring 32 to adapt to carriers of different sizes.

[0030] Among them, the edge pressing assembly includes an abutting wheel 5 and a mounting plate 6, the mounting plate 6 is fixedly connected to the movable rod 41, the abutting wheel 5 is symmetrically arranged at both ends of the mounting plate 6, the abutting wheel 5 is elastically connected to the mounting plate 6, the edge pressing assembly also includes a bracket 51 and a screw rod 61, the screw rod 61 is symmetrically arranged at both ends of the mounting plate 6, the screw rod 61 is threadedly connected to the mounting plate 6, the bracket 51 is rotatably connected to the screw rod 61, the bracket 51 is slidably connected to the mounting plate 6, the abutting wheel 5 is elastically connected to the bracket 51, the edge pressing assembly also includes a slide groove 52 and a sliding block 53, the slide groove 52 is symmetrically arranged on the inner side of the bracket 51, the sliding block 53 is elastically connected to the slide groove 52, the abutting wheel 5 is rotatably connected to the sliding block 53, and the edge pressing assembly The second spring 54 is also included. The second spring 54 is arranged in the slide groove 52. One end of the second spring 54 is fixedly connected to the slide groove 52. The other end of the second spring 54 is fixedly connected to the sliding block 53. The sliding block 53 is fixedly connected to the slide groove 52. The screw rod 61 is rotated by manpower. The screw rod 61 drives the bracket 51 to rise and fall through the threaded transmission. The loading body squeezes the abutting wheel 5 upward. The abutting wheel 5 drives the sliding block 53. The sliding block 53 squeezes the second spring 54. The second spring 54 is deformed and generates an opposite force. The second spring 54 pushes the abutting wheel 5 to be in close contact with the loading body through the opposite force. The loading body is limited while being detected to prevent the loading body from being separated from the loading platform 11 due to external forces.

[0031] Among them, the lifting component includes a driving motor 2 and a slider 22, the driving motor 2 is fixedly connected to the base 1, the slider 22 is transmission-connected to the output shaft of the driving motor 2, the mounting column 3 is fixedly connected to the slider 22, and the lifting component also includes a threaded rod 21, the output shaft of the driving motor 2 is fixedly connected to the threaded rod 21, the slider 22 is threadedly connected to the threaded rod 21, the carrier is placed on the loading platform 11, the driving motor 2 drives the threaded rod 21 to rotate through the output shaft, the threaded rod 21 rotates and drives the slider 22 to rise and fall through the thread, and the slider 22 drives the mounting column 3 to rise and fall.

[0032] Working principle: the loading carrier is placed on the loading platform 11, and the driving motor 2 drives the threaded rod 21 to rotate through the output shaft. The rotation of the threaded rod 21 drives the slider 22 to rise and fall through the thread. The slider 22 drives the mounting column 3 to rise and fall. The lifting of the mounting column 3 drives the movable rod 41 to rise and fall. The movable rod 41 drives the extrusion head 4 to rise and fall. When the extrusion head 4 abuts against the loading carrier, it deforms and fits the surface of the loading carrier, and the force of the extrusion head 4 is evenly distributed on the loading carrier. When the movable rod 41 moves downward, it pushes the first spring 32 upward. The first spring 32 is squeezed and deformed. The deformation of the first spring 32 generates a force opposite to the movable rod 41. Through the offset between the forces, when the movable rod 41 drives the extrusion head 4 to fit on the loading carrier, the movable rod 4 is prevented from 1 is too large, resulting in damage to the loading carrier. The threaded head 31 is rotated manually. The threaded head 31 drives the movable rod 41 to rise and fall through the thread. The movable rod 41 rises and falls to squeeze the first spring 32, thereby adjusting the elastic range of the first spring 32 to adapt to loading carriers of different sizes. The screw rod 61 is rotated manually. The screw rod 61 drives the bracket 51 to rise and fall through the thread transmission. The loading carrier squeezes the abutment wheel 5 upward, and the abutment wheel 5 drives the sliding block 53. The sliding block 53 squeezes the second spring 54. The second spring 54 is deformed and generates an opposite force. The second spring 54 pushes the abutment wheel 5 to be in close contact with the loading carrier through the opposite force. The loading carrier is limited while being detected to prevent the loading carrier from being separated from the loading platform 11 due to external forces.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A lever device of a blood cell analyzer, characterized in that, include: A base (1), the base (1) is L-shaped as a whole, a loading platform (11) is provided on the base (1), and the loading platform (11) is fixedly connected to the base (1); A movable rod (41), the movable rod (41) is arranged on the base (1), and the movable rod (41) is movably connected to the base (1); A lifting component, the lifting component is arranged on the base (1), and the lifting component is used to lift the movable rod (41); A pressing assembly, the pressing assembly is arranged on the movable rod (41), and is used for pressing the carrier; A pressure rod assembly is arranged on a movable rod (41), and is used for pressing an edge mounting carrier. The pressure rod assembly comprises a mounting column (3), a threaded head (31) and a rubber extrusion head (4). The mounting column (3) is movably connected to a base (1), the threaded head (31) is threadedly connected to the mounting column (3), the movable rod (41) is elastically connected to the mounting column (3), and the rubber extrusion head (4) is fixedly connected to the movable rod (41).

2. The pressing rod device of the blood cell analyzer according to claim 1, characterized in that, The pressure rod assembly also includes a first spring (32), one end of the first spring (32) is fixedly connected to the mounting column (3), the other end of the first spring (32) is fixedly connected to the movable rod (41), and the movable rod (41) is slidably connected to the threaded head (31).

3. The pressure lever device of the blood cell analyzer according to claim 1, characterized in that, The edge pressing assembly comprises an abutment wheel (5) and a mounting plate (6); the mounting plate (6) is fixedly connected to the movable rod (41); the abutment wheel (5) is symmetrically arranged at both ends of the mounting plate (6); and the abutment wheel (5) is elastically connected to the mounting plate (6).

4. The pressing rod device of the blood cell analyzer according to claim 3, wherein The edge pressing assembly also includes a bracket (51) and a screw rod (61), the screw rod (61) is symmetrically arranged at both ends of the mounting plate (6), the screw rod (61) is threadedly connected to the mounting plate (6), the bracket (51) and the screw rod (61) are rotatably connected, the bracket (51) and the mounting plate (6) are slidably connected, and the abutment wheel (5) and the bracket (51) are elastically connected.

5. The pressing rod device of the blood cell analyzer according to claim 4, wherein, The edge pressing assembly further comprises a slide groove (52) and a sliding block (53), wherein the slide groove (52) is symmetrically arranged on the inner side of the bracket (51), the sliding block (53) is elastically connected to the slide groove (52), and the abutting wheel (5) is rotationally connected to the sliding block (53).

6. The pressure lever device of the blood cell analyzer according to claim 5, wherein, The edge pressing assembly also includes a second spring (54), which is arranged in the slide groove (52), one end of the second spring (54) is fixedly connected to the slide groove (52), and the other end of the second spring (54) is fixedly connected to the sliding block (53), and the sliding block (53) is fixedly connected to the slide groove (52).

7. The pressure rod device of the blood cell analyzer according to claim 1, wherein, The lifting assembly comprises a driving motor (2) and a slider (22); the driving motor (2) is fixedly connected to the base (1); the slider (22) is drivingly connected to the output shaft of the driving motor (2); and the mounting column (3) is fixedly connected to the slider (22).

8. The pressure lever device of the blood cell analyzer according to claim 7, characterized in that, The lifting assembly further comprises a threaded rod (21), the output shaft of the driving motor (2) is fixedly connected to the threaded rod (21), and the sliding block (22) is threadedly connected to the threaded rod (21).

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