CN220778792U - Injection pump structure for on-line instrument - Google Patents
Injection pump structure for on-line instrument Download PDFInfo
- Publication number
- CN220778792U CN220778792U CN202321743135.8U CN202321743135U CN220778792U CN 220778792 U CN220778792 U CN 220778792U CN 202321743135 U CN202321743135 U CN 202321743135U CN 220778792 U CN220778792 U CN 220778792U
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- China
- Prior art keywords
- main body
- driving
- injection
- shell main
- shell
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- 238000002347 injection Methods 0.000 title claims abstract description 40
- 239000007924 injection Substances 0.000 title claims abstract description 40
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model relates to an injection pump structure used on an online instrument, which comprises a shell main body with a rectangular middle hole, an injection driving assembly arranged in the middle of the shell main body and used for driving an injector to inject, and a guide rail assembly arranged on the outer wall of one side of the shell main body along the length direction and used for guiding the driving end of the injection driving assembly and contacting with the joint surface of the driving end of the injection driving assembly in the shell main body; a strip sliding port penetrating into the shell body is formed in the middle of one side wall of the shell body in the length direction; one end of the driving end of the injection driving assembly penetrates through the strip sliding port to the outside of the shell main body; according to the utility model, the guide rail assembly with the surface contact is additionally arranged, so that the driving end of the injection driving assembly is prevented from inclining during operation, the driving end of the injection driving assembly operates more stably, and the influence on an external injector is avoided.
Description
Technical Field
The utility model relates to the field of injection pumps, in particular to an injection pump structure for an on-line instrument.
Background
The injection pump is a device for pushing a piston of an injector to perform injection and transfusion so as to realize high-precision, stable and pulse-free liquid transmission. And the pump body device is one of the most critical components for achieving the above functions in the injection pump.
The existing injection pump is driven by a threaded rod and guided by a guide rod, as the guide rod is connected with a driving speed by a bearing, and a ball is arranged in the bearing to be connected with the guide rod, which is equivalent to point contact, the injection pump is easy to incline during driving due to uneven stress in the running process, thus affecting injection, as in the prior art, an injection pump is disclosed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a syringe pump structure used on an online instrument.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an injection pump structure used on an online instrument comprises a casing main body with a rectangular middle hole, an injection driving assembly arranged in the middle of the casing main body and used for driving an injector to inject, and a guide rail assembly arranged on the outer wall of one side of the casing main body along the length direction and used for guiding the driving end of the injection driving assembly and contacting with the joint surface of the driving end of the injection driving assembly in the casing main body; a strip sliding port penetrating into the shell body is formed in the middle of one side wall of the shell body in the length direction; one end of the driving end of the injection driving assembly penetrates through the strip sliding port to the outside of the shell main body.
Preferably, the injection driving assembly comprises a threaded rod vertically arranged in the middle of the main body of the shell in a rotating manner and placed along the length direction, a guide rod vertically arranged in the main body of the shell and positioned at one side of the threaded rod, a driving block with one end in threaded connection with the threaded rod and the other end sleeved on the guide rod through a bearing, and a driving motor arranged in the middle of the outer wall at one side of the width direction of the main body of the shell and used for driving the threaded rod to rotate.
Preferably, the guide rail assembly comprises a connecting piece, a slide rail and a guide rail, wherein one surface of the connecting piece is connected to the outer wall of one side of the shell main body in the length direction, the other surface of the connecting piece is parallel to the hollow surface of the shell main body and is in an L shape, and the slide rail is vertically arranged on the side, parallel to the hollow surface of the shell main body, opposite to the hollow surface of the shell main body and in a dovetail shape; a sliding block is arranged on the corresponding surface of the driving block; and a dovetail groove for jointing the sliding rail is formed in the sliding block.
Preferably, the sliding rail and the sliding block are both made of bearing steel materials.
Preferably, the driving motor is a servo motor and a stepping motor.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the utility model, the guide rail assembly with the surface contact is additionally arranged, so that the driving end of the injection driving assembly is prevented from inclining during operation, the driving end of the injection driving assembly operates more stably, and the influence on an external injector is avoided.
Drawings
The technical scheme of the utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the overall structure of a syringe pump for use on an in-line instrument according to the present utility model;
FIG. 2 is a schematic elevational view of a syringe pump configuration for use on an in-line instrument according to the present utility model;
fig. 3 is a schematic top view of a syringe pump structure for use on an in-line instrument according to the present utility model.
Wherein: 1. a housing main body; 2. an injection drive assembly; 21. a threaded rod; 22. a guide rod; 23. a driving block; 24. a driving motor; 3. a guide rail assembly; 31. a connecting piece; 32. a slide rail; 33. a slide block; 34. a dovetail groove; 4. and (5) a strip sliding port.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
Fig. 1-3 show an injection pump structure for an on-line instrument, which comprises a rectangular middle hole casing main body 1, an injection driving assembly 2 arranged in the middle of the casing main body 1 and used for driving an injector to inject, and a guide rail assembly 3 arranged on the outer wall of one side of the casing main body 1 along the length direction and used for guiding the driving end of the injection driving assembly 2 and contacting with the driving end joint surface of the injection driving assembly 2 in the casing main body 1; a strip sliding port 4 penetrating into the shell main body 1 is arranged in the middle of the side wall of one side of the shell main body 1 in the length direction; one end of the driving end of the injection driving assembly 2 passes through the strip sliding port 4 to the outside of the shell main body 1; the injection driving assembly 2 comprises a threaded rod 21 vertically arranged in the middle part of the shell main body 1 in a rotating manner and placed along the length direction, a guide rod 22 vertically arranged in the shell main body 1 and positioned at one side of the threaded rod 21, a driving block 23 with one end connected to the threaded rod 21 in a threaded manner and the other end sleeved on the guide rod 22 through a bearing, and a driving motor 24 arranged in the middle part of the outer wall at one side of the shell main body 1 in the width direction and used for driving the threaded rod 21 to rotate; the guide rail assembly 3 comprises a connecting piece 31, and a slide rail 32, wherein one surface of the connecting piece 31 is connected to the outer wall of one side of the shell main body 1 in the length direction, the other surface of the connecting piece is parallel to the hollow surface of the shell main body 1 and is in an L shape, and the slide rail 32 is vertically arranged on the surface, which is parallel to the hollow surface of the shell main body 1 and opposite to the hollow surface, of the connecting piece 31 and is in a dovetail shape; a sliding block 33 is arranged on the corresponding surface of the driving block 23; the slide block 33 is provided with a dovetail groove 34 for attaching the slide rail 32.
Further, the sliding rail 32 and the sliding block 33 are made of bearing steel materials, so that the service life is prolonged.
Further, the driving motor 24 is a servo motor and a stepping motor, so that the replacement and selection are facilitated.
When in use, the utility model is characterized in that: when the injector needs to be driven, the driving motor 24 is firstly played, the driving motor 24 drives the threaded rod 21 to rotate, the threaded rod 21 drives the driving block 23 to move on the guide rod and the sliding rail 32, the driving block 23 makes the movement of the driving block 23 more stable through the surface contact between the sliding block 33 with the dovetail groove 34 and the sliding rail 32 in the dovetail shape, the problem that the injector is inclined under the condition that only one guide rod 22 exists is avoided, and one end of the driving block outside the shell main body 1 drives the injector to inject or extract.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (5)
1. An injection pump structure for on-line instrument, characterized in that: the injection driving device comprises a rectangular middle hole casing main body, an injection driving assembly arranged in the middle of the casing main body and used for driving an injector to inject, and a guide rail assembly arranged on the outer wall of one side of the casing main body along the length direction and used for guiding the driving end of the injection driving assembly and contacting with the joint surface of the driving end of the injection driving assembly in the casing main body; a strip sliding port penetrating into the shell body is formed in the middle of one side wall of the shell body in the length direction; one end of the driving end of the injection driving assembly penetrates through the strip sliding port to the outside of the shell main body.
2. The syringe pump architecture for use on an online meter of claim 1, wherein: the injection driving assembly comprises a threaded rod vertically arranged in the middle of the shell main body in a rotating manner and placed along the length direction, a guide rod vertically arranged in the shell main body and positioned at one side of the threaded rod, a driving block with one end in threaded connection with the threaded rod and the other end sleeved on the guide rod through a bearing, and a driving motor arranged in the middle of the outer wall of one side of the width direction of the shell main body and used for driving the threaded rod to rotate.
3. The syringe pump architecture for use on an online meter of claim 2, wherein: the guide rail assembly comprises a connecting piece and a slide rail, wherein one surface of the connecting piece is connected to the outer wall of one side of the length direction of the shell main body, the other surface of the connecting piece is parallel to the hollow surface of the shell main body and is in an L shape, and the slide rail is vertically arranged on the side, parallel to the hollow surface of the shell main body, of the connecting piece and is opposite to the hollow surface of the shell main body and is in a dovetail shape; a sliding block is arranged on the corresponding surface of the driving block; and a dovetail groove for jointing the sliding rail is formed in the sliding block.
4. A syringe pump structure for use on an online meter as in claim 3, wherein: the sliding rail and the sliding block are both made of bearing steel.
5. The syringe pump architecture for use on an online meter as claimed in any of claims 2-4, wherein: the driving motor is a servo motor and a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743135.8U CN220778792U (en) | 2023-07-05 | 2023-07-05 | Injection pump structure for on-line instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743135.8U CN220778792U (en) | 2023-07-05 | 2023-07-05 | Injection pump structure for on-line instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220778792U true CN220778792U (en) | 2024-04-16 |
Family
ID=90655464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321743135.8U Active CN220778792U (en) | 2023-07-05 | 2023-07-05 | Injection pump structure for on-line instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220778792U (en) |
-
2023
- 2023-07-05 CN CN202321743135.8U patent/CN220778792U/en active Active
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