CN211157801U

CN211157801U - Anti-blood return medicine injection pump

Info

Publication number: CN211157801U
Application number: CN201921944962.7U
Authority: CN
Inventors: 李媛媛; 王刚; 龙金华
Original assignee: Affiliated Hospital of Guizhou Medical University
Current assignee: Affiliated Hospital of Guizhou Medical University
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-04
Anticipated expiration: 2029-11-12

Abstract

The utility model provides a blood return prevention drug injection pump, which comprises a base; the top of the base is clamped with a pump body through a clamping jaw structure; a motor is fixedly arranged on one side of the base through a bolt; the motor, the short pull rod and the long pull rod are arranged to provide a function of adjusting speed and injection amount for the injection pump, when the dotting machine adjusts the initial speed, the length of the short pull rod and the length of the long pull rod can be stretched or reduced through the telescopic structure, and the injection work is carried out by utilizing the scale test record of the pump body; the arrangement of the propelling screw and the adjusting nut provides a function of adjusting torque for the short pull rod and the long pull rod, and the moving range of the piston in the pump body can be flexibly adjusted, so that the injection amount is determined.

Description

Anti-blood return medicine injection pump

Technical Field

The utility model belongs to the technical field of medical instrument, more specifically say, in particular to prevent back blood injection pump.

Background

The medicine injection pump is a medical apparatus used for the medical industry to inject patients, can be used for intravenous injection, can be used for operations such as vaccine injection and the like, and utilizes power to transport liquid medicine and inject the liquid medicine into human bodies at a constant speed.

Based on the above, the currently used injection pump has too low working speed and lower adjustable range, is weak when used in the projects such as vaccines and the like which need rapid injection, and has small pressure generated by the injection pump, thereby influencing the working speed of the injection pump.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a blood return prevention drug injection pump is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a prevent back blood injection pump to the injection pump operating speed who provides at present uses in solving above-mentioned background art is too slow, and adjustable range is lower, and is comparatively hypodynamized when the project that needs rapid injection such as bacterin uses, and the pressure that the injection pump produced is less, has influenced the problem of the operating speed of injection pump.

The utility model relates to a prevent purpose and efficiency of blood return injection pump is reached by following specific technological means:

A blood return prevention drug injection pump comprises a base; the top of the base is clamped with a pump body through a clamping jaw structure; and a motor is fixedly arranged on one side of the base through a bolt.

Further, the pump body is of a transparent structure, and scales are arranged outside the pump body; the pump body is of a cylindrical structure, one end of the pump body is of a spherical structure, and a one-way valve A is fixedly arranged in the middle of the spherical structure through threaded connection; one side of the pump body close to the spherical surface is fixedly provided with a one-way valve B through threaded connection; and the check valve B is fixedly connected with the base through a clamping plate structure arranged on a bolt.

Further, the pump body also comprises a pump cover; one end of the pump body is fixedly provided with a pump cover through threaded connection, a round hole is formed in the middle of the pump cover, and two ends of the round hole are integrally provided with a guide structure; and a propelling screw rod is arranged in the middle of the pump cover in a sliding manner through a guide structure.

Furthermore, the propelling screw rod also comprises a piston, an adjusting nut, a connecting rod sleeve, a locking ring and a packing nut; one end of the propelling screw is integrally provided with a wafer structure, and a piston is sleeved outside the wafer; an adjusting nut is movably arranged outside the propelling screw rod through threaded connection, and a round sleeve structure is integrally arranged on one side of the adjusting nut; the adjusting nut round sleeve is sleeved with a connecting rod sleeve; the outer side of the adjusting nut round sleeve is fixedly provided with a locking ring through threaded connection; and a packing nut is movably arranged outside the propelling screw rod through threaded connection.

Furthermore, one side of the connecting rod sleeve is connected with a long pull rod through a rotating shaft; one side of the base is rotationally provided with a short pull rod through a rotating shaft matched key connection, and the short pull rod is in motion connection with the long pull rod; the short pull rod and the long pull rod are of telescopic structures, and jackscrews are arranged on the outer sides of the short pull rod and the long pull rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

The motor, the short pull rod and the long pull rod are arranged to provide a function of adjusting speed and injection amount for the injection pump, when the dotting machine adjusts the initial speed, the length of the short pull rod and the length of the long pull rod can be stretched or reduced through the telescopic structure, and the injection work is carried out by utilizing the scale test record of the pump body; the arrangement of the propelling screw and the adjusting nut provides a function of adjusting torque for the short pull rod and the long pull rod, and the moving range of the piston in the pump body can be flexibly adjusted, so that the injection amount is determined.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the three-dimensional rear view structure of the present invention.

Fig. 3 is a schematic structural diagram of the adjusting nut of the present invention.

Fig. 4 is a schematic perspective view of the propulsion screw of the present invention.

Fig. 5 is a schematic diagram of a partially enlarged structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. The pump comprises a base, 2, a pump body, 201, a pump cover, 3, check valves A, 4, check valves B, 5, a motor, 6, a propelling screw rod, 601, a piston, 602, an adjusting nut, 603, a connecting rod sleeve, 604, a locking ring, 605, a packing nut, 7, a short pull rod, 8 and a long pull rod.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

As shown in figures 1 to 5:

The utility model provides a blood return prevention drug injection pump, which comprises a base 1; the top of the base 1 is clamped with a pump body 2 through a clamping jaw structure; the pump body 2 further comprises a pump cover 201; one end of the pump body 2 is fixedly provided with a pump cover 201 through threaded connection, a round hole is formed in the middle of the pump cover 201, and two ends of the round hole are integrally provided with a guide structure; the middle of the pump cover 201 is provided with a propelling screw 6 in a sliding way through a guide structure; the pump body 2 is of a transparent structure, and scales are arranged outside the pump body 2; the main body of the pump body 2 is of a cylindrical structure, one end of the main body is of a spherical structure, the middle of the spherical structure is fixedly provided with a one-way valve A3 through threaded connection, and the one-way valve A3 is a discharge valve; one side of the pump body 2 close to the spherical surface is fixedly provided with a one-way valve B4 through threaded connection, and the one-way valve B4 is an inlet valve; the check valve B4 is fixedly connected with the base 1 through a clamping plate structure arranged on a bolt; one side of the base 1 is fixedly provided with a motor 5 through a bolt.

Wherein, the propelling screw 6 also comprises a piston 601, an adjusting nut 602, a connecting rod sleeve 603, a locking ring 604 and a packing nut 605; one end of the propelling screw 6 is integrally provided with a wafer structure, and a piston 601 is sleeved outside the wafer; an adjusting nut 602 is movably arranged outside the propelling screw 6 through threaded connection, and a round sleeve structure is integrally arranged on one side of the adjusting nut 602; the round sleeve of the adjusting nut 602 is sleeved with a connecting rod sleeve 603; the outer side of the round sleeve of the adjusting nut 602 is fixedly provided with a locking ring 604 through threaded connection; a packing nut 605 is movably arranged outside the propelling screw rod 6 through threaded connection.

Wherein, one side of the connecting rod sleeve 603 is connected with a long pull rod 8 through a rotating shaft; one side of the base 1 is rotationally provided with a short pull rod 7 through a rotating shaft matched key connection, and the short pull rod 7 is movably connected with a long pull rod 8; the short pull rod 7 and the long pull rod 8 are both of telescopic structures, and jackscrews are arranged on the outer sides of the short pull rod 7 and the long pull rod 8; the jackscrew of the short pull rod 7 is arranged at the top; the jackscrew of long pull rod 8 sets up in the outer end.

The specific use mode and function of the embodiment are as follows:

In the utility model, the pump body 2 is clamped and arranged at the top of the base 1 through a claw structure; a motor 5 is fixedly arranged on one side of the base 1 through a bolt; a one-way valve A3 is fixedly arranged in the middle of the spherical structure through threaded connection; one side of the pump body 2 close to the spherical surface is fixedly provided with a one-way valve B4 through threaded connection; a clamping plate structure is arranged at the one-way valve B4 through a bolt and is fixedly connected with the base 1; one end of the pump body 2 is fixedly provided with a pump cover 201 through threaded connection, a round hole is formed in the middle of the pump cover 201, and guide structures are integrally arranged at two ends of the round hole; a propelling screw rod is arranged in the middle of the pump cover 201 in a sliding manner through a guide structure; a wafer structure is integrally arranged at one end of the propelling screw 6, and a piston 601 is sleeved outside the wafer; an adjusting nut 602 is movably arranged outside the propelling screw 6 through threaded connection, and a round sleeve structure is integrally arranged on one side of the adjusting nut 602; a connecting rod sleeve 603 is sleeved outside the round sleeve of the adjusting nut 602; a locking ring 604 is fixedly arranged on the outer side of the round sleeve of the adjusting nut 602 through threaded connection; a packing nut 605 is movably arranged outside the propelling screw rod 6 through threaded connection; one side of the connecting rod sleeve 603 is provided with a long pull rod 8 through a rotating shaft; one side of the base 1 is connected with a short pull rod 7 in a rotating mode through a rotating shaft matched key, and the short pull rod 7 is movably connected with a long pull rod 8; jackscrews are arranged on the outer sides of the short pull rod 7 and the long pull rod 8; when the reciprocating pump is used, the one-way valve A3 is connected with a liquid medicine source, the starting motor 5 drives the short pull rod 7 and the long pull rod 8 to rotate by utilizing the motor 5, the pushing screw rod 6 is driven to move through the motion curve of the slider-crank mechanism, liquid medicine is discharged through the piston 601 and the one-way valve A3, and the pump body 2 is filled with the liquid medicine through vacuum negative pressure during a return stroke.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An anti-flashback infusion pump, comprising: a base (1); the top of the base (1) is clamped with a pump body (2) through a clamping jaw structure; a motor (5) is fixedly arranged on one side of the base (1) through a bolt; the pump body (2) is of a transparent structure, and scales are arranged outside the pump body (2); the main body of the pump body (2) is of a cylindrical structure, one end of the main body is of a spherical structure, and a one-way valve A (3) is fixedly arranged in the middle of the spherical structure through threaded connection; one side of the pump body (2) close to the spherical surface is fixedly provided with a one-way valve B (4) through threaded connection; the check valve B (4) is fixedly connected with the base (1) through a clamping plate structure arranged on a bolt; the pump body (2) also comprises a pump cover (201); one end of the pump body (2) is fixedly provided with a pump cover (201) through threaded connection, a round hole is formed in the middle of the pump cover (201), and two ends of the round hole are integrally provided with a guide structure; a propelling screw (6) is arranged in the middle of the pump cover (201) in a sliding manner through a guide structure; the propelling screw rod (6) further comprises a piston (601), an adjusting nut (602), a connecting rod sleeve (603), a locking ring (604) and a packing nut (605); one end of the propelling screw (6) is integrally provided with a wafer structure, and a piston (601) is sleeved outside the wafer; an adjusting nut (602) is movably arranged outside the propelling screw (6) through threaded connection, and a round sleeve structure is integrally arranged on one side of the adjusting nut (602); a connecting rod sleeve (603) is sleeved outside the round sleeve of the adjusting nut (602); the outer side of the round sleeve of the adjusting nut (602) is fixedly provided with a locking ring (604) through threaded connection; a packing nut (605) is movably arranged outside the propelling screw rod (6) through threaded connection; one side of the connecting rod sleeve (603) is connected with a long pull rod (8) through a rotating shaft; one side of the base (1) is connected with a short pull rod (7) in a rotating mode through a rotating shaft and a matching key, and the short pull rod (7) is movably connected with the long pull rod (8); the short pull rod (7) and the long pull rod (8) are both of a telescopic structure, and jackscrews are arranged on the outer sides of the short pull rod (7) and the long pull rod (8).