Clamping jaw opening and closing mechanism of injection pump

Abstract

The utility model discloses an injection pump clamping jaw opening and closing mechanism which comprises a front cover and a base which are fixedly connected through a screw A. A motor is fixedly installed on the base through a screw C. A rear cover is fixedly installed on the outer side of the front cover through a screw B. Two round hole structures are formed in the front cover, and a clamp A and a clamp B are rotationally installed in the round hole structures of the front cover. A gear C and a gear B are fixedly connected to the outer sides of the shaft parts of the clamp A and the clamp B. Meanwhile, an output shaft of the motor is fixedly connected with the gear A. A circuit board is fixedly installed on the front cover through a screw B, a potentiometer is welded to the circuit board, a potentiometer shifting rod is fixedly installed on the gear C. The gear A and the gear B are connected in an engaged mode. And the gear B and the gear C are in meshed connection. The clamping jaw opening and closing mechanism for the injection pump can automatically clamp an injector, effectively improves the installation efficiency of the injector, and meanwhile reduces the workload of medical staff.

Description

Technical Field

[0001] The utility model relates to the technical field of injection pumps, in particular to an injection pump clamping jaw opening and closing mechanism. Background Art

[0002] A syringe pump is usually a mechanical or electronic control device that controls the infusion rate by acting on the syringe. Most syringe pumps on the market require manual clamping of the syringe when installing the syringe, which brings operational inconvenience to medical staff and may cause operational errors.

[0003] For example, in the prior art, a syringe pump with publication number CN209004877U includes a housing, a control panel, a power cord, a screw, a mounting seat, a positioning seat, a slide rail and a top seat. The syringe is mounted on the mounting seat, and also includes a mounting device that can firmly mount syringes of different sizes; the mounting device includes a mounting plate, a tightening screw, a baffle and a groove arranged on the baffle. When replacing syringes of different sizes, the syringe fixing device has a poor fixing effect on smaller syringes, and may push the syringe together with the plunger rod of the syringe, which allows the staff to install the syringe more quickly and makes syringes of different sizes more firmly installed on the syringe pump. However, when using it, medical staff need to manually fix and install the syringe, which makes it inconvenient for medical staff to operate, reduces the nursing efficiency, and has certain use defects. Utility Model Content

[0004] The utility model aims to provide a syringe pump clamp opening and closing mechanism to solve the problem raised in the above background technology that most syringe pumps on the market currently require medical staff to manually install the syringe, resulting in reduced nursing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection pump jaw opening and closing mechanism, comprising a front cover and a base fixedly connected by screws A, and a motor is fixedly installed on the base by screws C, and a rear cover is fixedly installed on the outer side of the front cover by screws B, two circular hole structures are provided on the front cover, and clamps A and clamps B are rotatably installed in the circular hole structures of the front cover, and gears C and gears B are fixedly connected to the outer sides of the shafts of clamps A and clamps B respectively, and the output shaft of the motor is fixedly connected to gear A, a circuit board is fixedly installed on the front cover by screws B, and a potentiometer is welded and installed on the circuit board, and a potentiometer lever is fixedly installed on the gear C.

[0006] Preferably, the gear A and gear B are meshingly connected, and the gear B and gear C are meshingly connected.

[0007] By adopting the above technical solution, when the motor is driven, the gear A connected to its output end can synchronously drive the gear B and the gear C to rotate, thereby realizing the rotation control of the clips A and B.

[0008] Preferably, a groove structure is provided on the gear C, and a potentiometer lever is fixedly connected to the groove structure on the gear C, and the potentiometer lever is connected to the middle position of the potentiometer.

[0009] By adopting the above technical solution, the gear C can drive the potentiometer lever to rotate synchronously when it rotates, and then the potentiometer can be adjusted by the potentiometer lever.

[0010] Preferably, the clamp A and the clamp B are symmetrically arranged, and the clamp A and the clamp B are arranged in an arc-shaped structure, and the clamp A and the clamp B clamp the syringe.

[0011] By adopting the above technical solution, the syringe can be automatically clamped when the clamps A and B rotate, thereby reducing the workload of medical staff.

[0012] Preferably, a limiting block is integrally provided on the front cover, and a protrusion is integrally provided on the outer side of the gear C, and the limiting block is located on the movement trajectory of the protrusion.

[0013] By adopting the above technical solution, when the gear C rotates, the protrusion will approach and contact the limit block, thereby blocking and limiting the gear C. At this time, the clamping jaws are in an open state, and the syringe can be taken out.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the syringe pump clamping jaw opening and closing mechanism can automatically clamp the syringe, effectively improve the installation efficiency of the syringe, and reduce the workload of medical staff. The specific contents are as follows:

[0015] 1. A motor, gear A, gear B, gear C, clip A and clip B are provided. When the syringe needs to be installed, the syringe is placed close to the front cover, and the motor is started, so that the motor drives gear A, and gear A drives gear B to rotate through meshing, and gear B drives gear C to rotate synchronously, so that gear B and gear C drive clip A and clip B to rotate synchronously, so that clip A and clip B can clamp the syringe, effectively improving the installation and care efficiency;

[0016] 2. A potentiometer lever and gear C are provided. With the rotation of gear C, gear C can drive the potentiometer lever on its outer side to rotate synchronously, and then the potentiometer lever can drive the center of the potentiometer to rotate, so as to carry out the next subsequent instruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is an explosion diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the circuit board and the potentiometer of the utility model;

[0019] Figure 3 This is a schematic diagram of the circuit board installation structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of gear A and gear B of the utility model;

[0021] Figure 5 This is a schematic diagram of the clamping structure of the clamp A and the clamp B of the utility model;

[0022] Figure 6 This is a schematic diagram of the rotation structure of the gear C of the utility model;

[0023] Figure 7 This is a schematic diagram of the open structure of the clip A and the clip B of the utility model.

[0024] In the figure: 1. front cover; 2. base; 3. screw A; 4. motor; 5. back cover; 6. screw B; 7. gear A; 8. screw C; 9. circuit board; 10. gear B; 11. potentiometer lever; 12. gear C; 13. clip A; 14. clip B; 15. potentiometer. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 7 The utility model provides a technical solution: an injection pump clamping jaw opening and closing mechanism, comprising a front cover 1 and a base 2 fixedly connected by screws A3, and a motor 4 is fixedly installed on the base 2 by screws C8, and a rear cover 5 is fixedly installed on the outer side of the front cover 1 by screws B6, two circular hole structures are opened on the front cover 1, and a clamp A13 and a clamp B14 are rotatably installed in the circular hole structure of the front cover 1, and the outer sides of the shafts of the clamps A13 and B14 are respectively fixedly connected with gears C12 and gears B10, and the output shaft of the motor 4 is fixedly connected with gears A7, a circuit board 9 is fixedly installed on the front cover 1 by screws B6, a potentiometer 15 is welded and installed on the circuit board 9, and a potentiometer lever 11 is fixedly installed on the gear C12.

[0027] The gear A7 is meshed with the gear B10, and the gear B10 is meshed with the gear C12. The clamp A13 and the clamp B14 are symmetrically arranged, and the clamp A13 and the clamp B14 are arranged in an arc structure, and the clamp A13 and the clamp B14 clamp the syringe.

[0028] like Figure 1-Figure 2 and Figure 4-Figure 7 As shown, when the syringe needs to be installed, one end of the push rod of the syringe is attached to the front cover 1, so that the push rod is located between the clip A13 and the clip B14, and the motor 4 is started, so that the motor 4 drives the gear A7 to rotate, and the gear A7 will mesh with the gear B10, so that the gear B10 is synchronously meshed with the gear C12, and the gear B10 and the gear C12 can drive the clip A13 and the clip B14 to rotate synchronously, so that the clip A13 and the clip B14 can clamp the syringe, and the motor 4 is controlled to drive the gear A7 to rotate in the opposite direction, which can drive the clip A13 and the clip B14 to rotate and open, thereby facilitating the removal and replacement of the syringe.

[0029] A limit block is integrally provided on the front cover 1, and a protrusion is integrally provided on the outer side of the gear C12, and the limit block is located on the motion track of the protrusion. A groove structure is provided on the gear C12, and a potentiometer lever 11 is fixedly connected to the groove structure on the gear C12, and the potentiometer lever 11 is connected to the middle position of the potentiometer 15.

[0030] like Figure 2-Figure 5 As shown, when the gear C12 rotates, it will drive the externally connected potentiometer lever 11 to rotate synchronously, so that the potentiometer lever 11 simultaneously drives the middle position of the potentiometer 15 to rotate, thereby realizing circuit adjustment and executing the next instruction.

[0031] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A syringe pump jaw opening and closing mechanism, comprising a front cover (1) and a base (2) fixedly connected by screws A (3), a motor (4) fixedly mounted on the base (2) by screws C (8), and a rear cover (5) fixedly mounted on the outer side of the front cover (1) by screws B (6), characterized in that: The front cover (1) is provided with two circular hole structures, and a clip A (13) and a clip B (14) are rotatably mounted in the circular hole structures of the front cover (1), and the outer sides of the shafts of the clip A (13) and the clip B (14) are respectively fixedly connected with a gear C (12) and a gear B (10), and the output shaft of the motor (4) is fixedly connected with a gear A (7), a circuit board (9) is fixedly mounted on the front cover (1) by means of a screw B (6), a potentiometer (15) is welded and mounted on the circuit board (9), and a potentiometer lever (11) is fixedly mounted on the gear C (12).

2. The syringe pump clamping jaw opening and closing mechanism according to claim 1, characterized in that: The gear A (7) and the gear B (10) are meshed and connected, and the gear B (10) and the gear C (12) are meshed and connected.

3. The syringe pump clamping jaw opening and closing mechanism according to claim 1, characterized in that: The gear C (12) is provided with a groove structure, and a potentiometer lever (11) is fixedly connected in the groove structure on the gear C (12), and the potentiometer lever (11) is connected to the middle position of the potentiometer (15).

4. The syringe pump jaw opening and closing mechanism according to claim 1, characterized in that: The clamp A (13) and the clamp B (14) are symmetrically arranged, and the clamp A (13) and the clamp B (14) are arranged in an arc-shaped structure, and the clamp A (13) and the clamp B (14) clamp the syringe.

5. The syringe pump clamping jaw opening and closing mechanism according to claim 1, characterized in that: The front cover (1) is integrally provided with a limit block, and the outer side of the gear C (12) is integrally provided with a protrusion, and the limit block is located on the movement track of the protrusion.

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