CN220726503U - Magnetic coupling injection pump - Google Patents
Magnetic coupling injection pump Download PDFInfo
- Publication number
- CN220726503U CN220726503U CN202322290755.7U CN202322290755U CN220726503U CN 220726503 U CN220726503 U CN 220726503U CN 202322290755 U CN202322290755 U CN 202322290755U CN 220726503 U CN220726503 U CN 220726503U
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- China
- Prior art keywords
- magnetic
- magnetic core
- sleeve
- core piston
- barrel
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- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 230000008878 coupling Effects 0.000 title claims abstract description 13
- 238000010168 coupling process Methods 0.000 title claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 16
- 238000005260 corrosion Methods 0.000 claims description 11
- 230000004308 accommodation Effects 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000000670 limiting effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a magnetic coupling injection pump which comprises a mounting bracket, a driving piece and an injection assembly, wherein the driving piece and the injection assembly are arranged on the mounting bracket, the driving piece is connected with the injection assembly through a transmission assembly, the injection assembly comprises a cylinder body and a magnetic core piston arranged in the cylinder body, the cylinder body and the magnetic core piston are enclosed to form an accommodating space for accommodating liquid, the transmission assembly is connected with a magnetic sleeve, the magnetic sleeve is sleeved on the outer side of the cylinder body and is coupled with the magnetic core piston, and the driving piece is used for driving the magnetic sleeve and the magnetic core piston to synchronously reciprocate along the cylinder body through the transmission assembly. Through this application, occupation space is littleer, is convenient for use in small-size water quality monitoring equipment.
Description
Technical Field
The utility model relates to the field of water quality monitoring instruments, in particular to a magnetic coupling injection pump.
Background
The injection pump is an important device of the water quality monitoring system, and the traditional injection pump consists of a stepping motor, a driver of the stepping motor, a screw rod, a bracket and the like, and is provided with the screw rod and a nut which move reciprocally, so that the injection pump is also called as a screw rod pump. The nut is connected with the piston of the injector, and the injector is filled with liquid medicine, so that high-precision, stable and pulsation-free liquid transmission is realized.
In the process of using the syringe pump to operate, the more the number of times is, the greater the risk of mixing bubbles is, if the risk of mixing bubbles is reduced under the premise of ensuring the accuracy, the length of the syringe is lengthened to increase the volume of single operation, when the syringe is lengthened, the corresponding push rod is also lengthened, and a certain displacement space is reserved for the push rod, so that the occupied space of the whole part is overlarge, and the trend of miniaturization of the water quality monitor is contradictory.
Disclosure of Invention
Based on this, the present utility model aims to provide a magnetic coupling syringe pump, so as to solve the defects in the prior art.
In order to achieve the above purpose, the utility model provides a magnetic coupling injection pump, which comprises a mounting bracket, a driving piece and an injection assembly, wherein the driving piece and the injection assembly are arranged on the mounting bracket, the driving piece is connected with the injection assembly through a transmission assembly, the injection assembly comprises a cylinder body and a magnetic core piston arranged in the cylinder body, the cylinder body and the magnetic core piston enclose to form an accommodating space for accommodating liquid, the transmission assembly is connected with a magnetic sleeve, the magnetic sleeve is sleeved on the outer side of the cylinder body and is coupled with the magnetic core piston, and the driving piece is used for driving the magnetic sleeve and the magnetic core piston to synchronously reciprocate along the cylinder body through the transmission assembly.
The beneficial effects of the utility model are as follows: through arranging the magnetic core piston in the barrel, establish the magnetic sleeve in the outside of barrel to with magnetic sleeve and magnetic core piston coupling, this magnetic core piston encloses with the barrel and closes the accommodation space that forms and be used for holding liquid, when needs carry out flowing back or drawing liquid through this magnetic coupling syringe pump, through driving piece with power transmission to the magnetic sleeve through drive assembly, utilize the magnetic sleeve to drive the magnetic core piston and do reciprocating motion along the sleeve, with compression or expansion accommodation space, realize the operation of injection and extraction liquid, be different from prior art, occupation space is littleer, be convenient for use in small-size water quality monitoring equipment.
Preferably, the driving member is a stepper motor, and a driving shaft of the stepper motor is connected with the transmission assembly.
Preferably, the transmission assembly comprises a gear transmission part, a screw rod and a screw sleeve, wherein the driving part is connected with the screw rod through the gear transmission part, the screw sleeve is sleeved on the screw rod, and the screw sleeve is connected with the magnetic sleeve.
Preferably, a limiting rod is arranged on the mounting bracket, the limiting rod is parallel to the screw rod, and the threaded sleeve is in contact with the side wall of the limiting rod.
Preferably, the gear transmission member comprises a first gear and a second gear which are meshed, and centers of the first gear and the second gear are respectively connected with the driving member and the screw rod.
Preferably, the magnetic core piston comprises an anti-corrosion support and a magnetic core, the anti-corrosion support is of an I-shaped structure, and the magnetic core is sleeved on the anti-corrosion support.
Preferably, one end of the anti-corrosion bracket is integrally connected with a conical block.
Preferably, the anti-corrosion support is in sealing connection with the inside of the cylinder body through a sealing structure.
Preferably, the magnetic sleeve comprises a plurality of magnetic sheets and sliding sheets, the magnetic sheets and the sliding sheets are alternately connected to form an annular structure, and the sliding sheets are slidably connected with the outer wall of the cylinder.
Preferably, one end of the cylinder is connected with a three-way valve, and the three-way valve and the driving piece are controlled by a controller.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic diagram of a magnetic coupling syringe pump according to an embodiment of the present utility model;
fig. 2 is a cross-sectional view of an injection assembly provided in an embodiment of the present utility model.
Description of main reference numerals:
11. a second plate; 12. a frame space; 20. a driving member; 31. a cylinder; 321. an anti-corrosion bracket; 322. a magnetic core; 323. conical blocks; 33. a magnetic sleeve; 331. a magnetic sheet; 332. a sliding sheet; 41. a first gear; 42. a second gear; 43. a screw rod; 44. a screw sleeve; 45. a limit rod; 51. a Y-shaped sealing ring; 52. an O-shaped sealing ring; 60. and a three-way valve.
The utility model will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 2, a magnetically coupled syringe pump according to an embodiment of the present utility model includes a mounting bracket, a driving member 20 disposed on the mounting bracket, and an injection assembly.
Wherein: the driving piece 20 and the injection assembly are respectively positioned on two opposite sides of the mounting bracket, the driving piece 20 is connected with the injection assembly through a transmission assembly, specifically, the driving piece 20 is a stepping motor, a driving shaft of the stepping motor is connected with the transmission assembly, the injection assembly comprises a cylinder 31 and a magnetic core piston arranged in the cylinder 31, the magnetic core piston is in fit contact with the inner side wall of the cylinder 31, the cylinder 31 and the magnetic core piston enclose to form an accommodating space for accommodating liquid, the transmission assembly is connected with a magnetic sleeve 33, the magnetic sleeve 33 is sleeved on the outer side of the cylinder 31 and is in sliding connection with the cylinder 31, the magnetic sleeve 33 is coupled with the magnetic core piston, the driving piece 20 is used for transmitting power to the magnetic sleeve 33 through the transmission assembly, and the magnetic sleeve 33 is coupled with the magnetic core piston to drive the magnetic core piston to reciprocate along the sleeve so as to compress or expand the accommodating space, and the operation of injecting and extracting liquid is realized.
It should be noted that, the installing support is the U-shaped structure, and the installing support is including the three plate that connects gradually, is first plate, second plate 11 and third plate respectively, and first plate and second plate 11 mutually perpendicular, and mutually parallel with the third plate, barrel 31 and second plate 11 mutually parallel, and it can be understood that first plate, second plate 11, third plate and barrel 31 enclose and close the framework space 12 that forms a closed loop, and drive piece 20, drive assembly and injection subassembly are located side by side in the framework space 12.
In this embodiment, the volume of the accommodating space changes with the position of the magnetic core piston, when the magnetic core piston moves away from the opening of the cylinder 31, the accommodating space is compressed, when the magnetic core piston moves toward the opening of the cylinder 31, the accommodating space is enlarged, a through hole is formed in the center of one end of the cylinder 31, and the accommodating space is communicated with the outside through the through hole.
In this embodiment, the transmission assembly includes a gear transmission member, a screw 43 and a threaded sleeve 44, the driving member 20 is connected with the screw 43 through the gear transmission member, the threaded sleeve 44 is sleeved on the screw 43 and is in threaded connection with the screw 43, it can be understood that when the driving member 20 works, the screw 43 can be driven by the gear transmission member to rotate so as to make the threaded sleeve 44 reciprocate along the screw 43, the screw 43 and the cylinder 31 are parallel to each other, in order to ensure that the threaded sleeve 44 moves along with the rotation of the screw 43, a limiting rod 45 is arranged on the mounting bracket, the limiting rod 45 is arranged in the frame space 12, and the limiting rod 45 is parallel to the screw 43, the threaded sleeve 44 is contacted with the side wall of the limiting rod 45, so that the threaded sleeve 44 moves along with the rotation of the screw 43 under the limiting action of the limiting rod 45, the threaded sleeve 44 is connected with the magnetic sleeve 33, and in the process that the threaded sleeve 44 moves along with the rotation of the screw 43, the magnetic sleeve 33 and the magnetic core piston can also be driven to move synchronously.
In the present embodiment, the gear transmission member includes a first gear 41 and a second gear 42 which are engaged with each other, the center of the first gear 41 is connected to the driving shaft of the driving member 20, and the center of the second gear 42 is connected to one end of the screw 43 so that both the driving member 20 and the screw 43 can be mounted on the upper surface of the mounting bracket.
In this embodiment, the magnetic core piston includes anticorrosive support 321 and magnetic core 322, this anticorrosive support 321 is the I-shaped structure, anticorrosive support 321 is in contact with the inside wall laminating of barrel 31, and the one end of anticorrosive support 321 an organic whole is connected with circular cone form block 323, the middle part of anticorrosive support 321 is located to the fixed cover of magnetic core 322, it can be understood that the coating has one deck waterproof antioxidation material on the magnetic core 322, anticorrosive support 321 adopts anticorrosive material to make, in order to prolong the life of this magnetic core piston, in order to avoid accommodation space's liquid can flow to the magnetic core piston through the gap, be equipped with seal structure on the anticorrosive support 321, in order to be connected with the inside seal of barrel 31 through seal structure.
It should be noted that, the sealing structure includes a Y-shaped sealing ring 51 and two O-shaped sealing rings 52, one of the Y-shaped sealing rings 51 and one of the O-shaped sealing rings 52 is disposed at one end of the magnetic core piston close to the conical block 323, the other O-shaped sealing ring 52 is disposed at one end of the magnetic core piston far away from the conical block 323, and the magnetic core 322 is disposed between the two O-shaped sealing rings, it can be understood that the Y-shaped sealing ring 51 and the O-shaped sealing ring 52 are made of elastic materials, and the Y-shaped sealing ring 51 and the O-shaped sealing ring 52 are both abutted against the inner side wall of the cylinder 31.
In this embodiment, the magnetic sleeve 33 includes a plurality of magnetic sheets 331 and a plurality of sliding sheets 332, the magnetic sheets 331 and the sliding sheets 332 are alternately connected to form an annular structure, the annular structure is sleeved on the outer side wall of the cylinder 31, wherein a certain gap is reserved between the magnetic sheets 331 and the outer side wall of the cylinder 31, so as to avoid the magnetic sheets 331 from rubbing against the outer side wall of the cylinder 31, and damage to the magnetic sheets 331, and the sliding sheets 332 are slidably connected with the outer side wall of the cylinder 31.
In this embodiment, one end of the cylinder 31 is connected with a three-way valve 60, the three-way valve 60 and the driving member 20 are controlled by a controller, specifically, the three-way valve 60 is switched to a liquid draining position, the controller controls the driving member 20 to drive the magnetic core piston to move along the direction towards the three-way valve 60, so that the magnetic core piston moves to an emptying position of the cylinder 31, and an emptying operation is realized; the three-way valve 60 is switched to the liquid pumping position, and the controller controls the driving piece 20 to drive the magnetic core piston to move along the direction away from the three-way valve 60, so that the magnetic core piston retreats to pump the specified amount of liquid; the three-way valve 60 is switched to the liquid discharge position, and the controller controls the driving member 20 to drive the magnetic core piston to move in the direction towards the three-way valve 60, so that the magnetic core piston moves forward to discharge a specified amount of liquid.
In the concrete implementation, through placing the magnetic core piston in barrel 31, establish the outside at barrel 31 with magnetic sleeve 33 cover to with magnetic sleeve 33 and magnetic core piston coupling, this magnetic core piston encloses with barrel 31 and closes the accommodation space that forms and be used for holding liquid, when needs carry out flowing back or drawing liquid through this magnetic coupling syringe pump, pass through drive piece 20 and transmit power to magnetic sleeve 33 through the drive assembly, utilize magnetic sleeve 33 to drive the magnetic core piston and do reciprocating motion along the sleeve, with compression or expansion accommodation space, realize the operation of injection and extraction liquid, be different from prior art, occupation space is littleer, be convenient for use in small-size water quality monitoring facilities.
It should be noted that the foregoing implementation procedure is only for illustrating the feasibility of the present application, but this does not represent that the magnetically coupled syringe pump of the present application has only one implementation procedure, and may be incorporated into the feasible embodiment of the present application as long as the magnetically coupled syringe pump of the present application can be implemented.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides a magnetic coupling injection pump, its characterized in that includes the installing support, locates driving piece and injection subassembly on the installing support, the driving piece pass through drive assembly with injection subassembly is connected, injection subassembly includes the barrel with locate magnetic core piston in the barrel, the barrel with magnetic core piston encloses and closes the accommodation space that forms to be used for holding liquid, drive assembly is connected with the magnetic sleeve, the magnetic sleeve cover is located the outside of barrel, and with magnetic core piston coupling, the driving piece is used for passing through drive assembly drives the magnetic sleeve with magnetic core piston is followed the synchronous reciprocating motion of barrel.
2. The magnetically coupled syringe pump of claim 1, wherein the drive member is a stepper motor, a drive shaft of the stepper motor being coupled to the transmission assembly.
3. The magnetically coupled injection pump of claim 1 wherein the drive assembly comprises a gear drive, a screw, and a sleeve, the drive being coupled to the screw via the gear drive, the sleeve being disposed on the screw, the sleeve being coupled to the magnetic sleeve.
4. A magnetically coupled syringe pump according to claim 3, wherein the mounting bracket is provided with a stop lever, the stop lever is parallel to the screw rod, and the sleeve is in contact with a side wall of the stop lever.
5. A magnetically coupled syringe pump according to claim 3, wherein the gear transmission comprises first and second gears engaged with each other, the centers of the first and second gears being connected to the drive member and the screw, respectively.
6. The magnetically coupled syringe pump of claim 1, wherein the magnetic core piston comprises an anti-corrosion bracket and a magnetic core, the anti-corrosion bracket is of an i-shaped structure, and the magnetic core is sleeved on the anti-corrosion bracket.
7. The magnetically coupled syringe pump of claim 6, wherein one end of the anti-corrosion support is integrally connected with a conical block.
8. The magnetically coupled syringe pump of claim 7, wherein the corrosion resistant support is sealingly coupled to the interior of the barrel via a sealing structure.
9. The magnetically coupled syringe pump of claim 1, wherein the magnetic sleeve comprises a plurality of magnetic sheets and a plurality of sliding sheets, the magnetic sheets and the sliding sheets are alternately connected to form a ring structure, and the sliding sheets are slidably connected to the outer wall of the cylinder.
10. The magnetically coupled syringe pump of claim 1, wherein one end of the barrel is connected with a three-way valve, the three-way valve and the driver being controlled by a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290755.7U CN220726503U (en) | 2023-08-24 | 2023-08-24 | Magnetic coupling injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290755.7U CN220726503U (en) | 2023-08-24 | 2023-08-24 | Magnetic coupling injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726503U true CN220726503U (en) | 2024-04-05 |
Family
ID=90526311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322290755.7U Active CN220726503U (en) | 2023-08-24 | 2023-08-24 | Magnetic coupling injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726503U (en) |
-
2023
- 2023-08-24 CN CN202322290755.7U patent/CN220726503U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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