CN214887531U - Piston type leak-free sample injector for corrosive solution - Google Patents
Piston type leak-free sample injector for corrosive solution Download PDFInfo
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- CN214887531U CN214887531U CN202121338220.7U CN202121338220U CN214887531U CN 214887531 U CN214887531 U CN 214887531U CN 202121338220 U CN202121338220 U CN 202121338220U CN 214887531 U CN214887531 U CN 214887531U
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Abstract
The piston type non-leakage sample injector for corrosive solution comprises a sample inlet, a plunger connector, a sealing sleeve, a sealing ring and a sealing gasket; the liquid inlet device is used for inputting, outputting and storing the solution, is made of Teflon materials, has good swelling resistance and chemical stability, and can store corrosive solution; the plunger is used for pumping or discharging the solution into or out of the liquid inlet device through reciprocating drawing movement; the plunger is made of zirconia, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant; the plunger connector is used for fixing the plunger and connecting the motor, so that the motor drives the plunger to perform reciprocating drawing movement through the plunger connector; the sealing sleeve, the sealing ring and the sealing gasket are sleeved on the plunger and used for sealing the opening of the plunger and the liquid inlet device, so that the leakage of the solution in the liquid inlet device is avoided.
Description
Technical Field
The utility model relates to a liquid conveying equipment field, concretely relates to a piston does not have leakage sample injector for having corrosive solution.
Background
In medical equipment, industrial equipment, and other devices requiring fluid delivery, a sample injector is often used to input and output fluids. The working principle of the sample injector is similar to that of the injector, according to the pressure principle, when fluid needs to be pumped into the injection tube, the piston is pulled outwards, the pressure in the tube is reduced, the external atmospheric pressure is unchanged, and the fluid is pressed into the injection tube by the atmospheric pressure; when the fluid in the injection tube needs to be discharged, the piston is pushed inwards, the pressure in the tube is increased, the external atmospheric pressure is unchanged, and the fluid in the tube overflows from the injection tube.
The sample injector in the prior art is only suitable for common liquid and is not suitable for conveying corrosive liquid, and the leakage is easy to occur due to corrosion of devices in the conveying of the corrosive liquid, however, the corrosive liquid needs to be conveyed in a plurality of special application scenes, so that the piston type non-leakage sample injector for the corrosive solution needs to be developed urgently to solve the problem of conveying the corrosive liquid.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that exists among the prior art, the utility model aims to provide a piston does not have leakage sample injector for having corrosive solution solves the problem of carrying corrosive liquids.
The utility model discloses a realize like this, the utility model is used for the piston that has corrosive solution does not have the technical scheme that leaks the injector adopted is: a piston type no-leakage sample injector for corrosive solution comprises
The liquid inlet device is used for inputting, outputting and storing the solution; the liquid inlet device is made of Teflon material, has good swelling resistance and chemical stability, and can store corrosive solution;
the plunger is positioned in the accommodating cavity of the liquid inlet device and is used for sucking or discharging a solution into or out of the liquid inlet device through reciprocating drawing movement; the plunger is made of zirconia materials, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant;
the plunger connector is used for fixing the plunger and connecting a motor, so that the motor drives the plunger to perform reciprocating drawing movement through the plunger connector;
the sealing sleeve, the sealing ring and the sealing gasket are sleeved on the plunger and used for sealing the opening of the plunger and the liquid inlet device, so that the leakage of a solution in the liquid inlet device is avoided.
Furthermore, the sample injector also comprises a locking nut which is used for locking the sealing sleeve and the sealing gasket so that the inner ring of the sealing sleeve and the inner ring of the sealing gasket are in close contact with the plunger to achieve the sealing purpose.
Further, the sealing ring is located between the sealing sleeve and the sealing gasket and used for fastening the sealing sleeve.
Further, the liquid inlet device comprises a second cylinder, the inside of the second cylinder is a cavity for placing the plunger and the stored liquid, and one end of the second cylinder is provided with an opening for the plunger to pass in and out.
Further, a first thread groove is formed in the inner wall of the locking nut; a protruding part is arranged on the periphery of one end of the second column body, and a second thread groove is formed in the outer surface of the protruding part; the first thread groove and the second thread groove are mutually meshed, so that the locking nut locks the sealing sleeve and the sealing gasket through the protruding part, and the sealing ring is in deformation interference fit, so that absolute sealing is realized.
Further, the other end of the second column body protrudes outwards to form a liquid conveying part, a liquid conveying hole is formed in the bottom of the liquid conveying part, and the liquid conveying hole is used for conveying external liquid into the second column body and outputting the liquid in the second column body to an external container.
Further, the liquid delivery part has a certain length, and the outer surface of the liquid delivery part is provided with a thread groove for connecting an external device.
Further, the plunger connector comprises a first cylinder, one end of the first cylinder is provided with an opening for placing the plunger, a motor connecting part which protrudes outwards is arranged in the middle of the upper surface of the first cylinder for connecting a motor, the motor connecting part has a certain length, and the outer surface of the motor connecting part is provided with an annular concave part for fixing the motor; the inner part of the upper surface forms a first contact surface, the inner wall of the first cylinder forms a second contact surface, the first contact surface is connected with the top end of the plunger, the second contact surface is connected with the side wall of the top of the plunger, and the parts of the first contact surface and the second contact surface, which are connected with the plunger, are bonded through glue so that the plunger is fixedly connected with the plunger connector.
Further, the seal cover, the sealing washer and the sealing gasket are made of teflon.
Furthermore, the inner wall of the protruding part is provided with a first annular step and a second annular step, the first annular step is used for fixing the sealing sleeve, and the second annular step is used for fixing the sealing gasket.
Specifically, the plunger connector is made of stainless steel; the side wall of the first body is provided with a fabrication hole, and the fabrication hole is used for discharging excessive colloid when the plunger connector is bonded with the plunger.
Compared with the prior art, the utility model has the advantages that the piston type leakage-free sample injector for corrosive solution provided by the utility model comprises a liquid inlet device, a plunger connector, a sealing sleeve, a sealing ring and a sealing gasket; the liquid inlet device is used for inputting, outputting and storing the solution, is made of Teflon materials, has good swelling resistance and chemical stability, and can store corrosive solution; the plunger is used for pumping or discharging the solution into or out of the liquid inlet device through reciprocating drawing movement; the plunger is made of zirconia, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant; the plunger connector is used for fixing the plunger and connecting the motor, so that the motor drives the plunger to perform reciprocating drawing movement through the plunger connector; the sealing sleeve, the sealing ring and the sealing gasket are sleeved on the plunger and used for sealing the opening of the plunger and the liquid inlet device so as to prevent the solution in the liquid inlet device from leaking; thereby solving the problem of conveying corrosive liquid.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an external view of a piston-type leak-free sample injector for corrosive solution according to an embodiment of the present invention.
Fig. 2 is another schematic external view of a piston-type leak-free sample injector for corrosive solutions according to an embodiment of the present invention.
Fig. 3 is another schematic external view of a piston-type leak-free sample injector for corrosive solutions according to an embodiment of the present invention.
Fig. 4 is a partially exploded schematic view of a piston-type leak-free sample injector for use with corrosive solutions according to an embodiment of the present invention.
Fig. 5 is an exploded view of a piston-type leak-free sample injector for corrosive solutions according to an embodiment of the present invention.
Fig. 6 is another schematic exploded view of a piston-type leak-free sample injector with corrosive solution according to an embodiment of the present invention.
Fig. 7 is another schematic exploded view of a piston-type leak-free sample injector with corrosive solution according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a liquid inlet device for a piston-type leak-free sample injector with corrosive solution according to an embodiment of the present invention.
Fig. 9 is another schematic diagram of the liquid inlet device for the piston-type leak-free sample injector with corrosive solution according to the embodiment of the present invention.
Fig. 10 is a schematic diagram of a plunger connector for a piston-type leak-free sample injector with caustic solution according to an embodiment of the present invention.
The reference symbols in the above figures are: 1. a plunger; 11. sealing sleeves; 12. a seal ring; 13. sealing gaskets; 2. a plunger connector; 21. a motor connecting part; 211. a recessed portion; 22. a first column; 23. an upper surface; 24. a fabrication hole; 201. a first contact surface; 202. a second contact surface; 3. locking the nut; 31. a first thread groove; 4. feeding a liquid device; 41. a second cylinder; 42. a projection; 43. a liquid conveying section; 431. a liquid delivery orifice; 44. a second thread groove; 401. a first annular step; 402. a second annular step.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it is noted that when an element is referred to as being "fixed" to 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 be present, it is to be understood that the terms "upper", "lower", "left", "right", and the like, if any, refer to an orientation or positional relationship based on that shown in the drawings, that is for convenience in describing the invention and to simplify the description, and that no indication or suggestion that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, is intended to be used as an illustration only, and not as a limitation of the patent, since the terms describing the positional relationship in the drawings will be understood by those skilled in the art as having the specific meaning of the terms set forth herein.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 10, the preferred embodiment of the present invention is shown.
The utility model provides a piston does not have leakage sample injector for having corrosive solution, include
The liquid inlet device 4 is used for inputting, outputting and storing the solution; the liquid inlet device 4 is made of Teflon material, has good swelling resistance and chemical stability, and can store corrosive solution;
the plunger 1 is positioned in the containing cavity of the liquid inlet device 4, and the plunger 1 is used for pumping or discharging the solution into or out of the liquid inlet device 4 through reciprocating drawing movement; the plunger 1 is made of zirconia, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant;
the plunger connector 2 is used for fixing the plunger 1 and connecting a motor, so that the motor drives the plunger 1 to perform reciprocating drawing movement through the plunger connector 2;
the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13 are sleeved on the plunger 1, and are used for sealing the opening of the plunger 1 and the liquid inlet device 4, so that the leakage of the solution in the liquid inlet device 4 is avoided.
The piston type non-leakage sample injector for corrosive solution comprises a liquid inlet 4, a plunger 1, a plunger connector 2, a sealing sleeve 11, a sealing ring 12 and a sealing gasket 13; the liquid inlet device 4 is used for inputting, outputting and storing the solution, and the liquid inlet device 4 is made of Teflon material, has good swelling resistance and chemical stability, and can store corrosive solution; the plunger 1 is used for pumping or discharging the solution into or out of the liquid inlet device 4 through reciprocating drawing movement; the plunger 1 is made of zirconia, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant; the plunger connector 2 is used for fixing the plunger 1 and connecting a motor, so that the motor drives the plunger 1 to perform reciprocating drawing movement through the plunger connector 2; the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13 are sleeved on the plunger 1 and used for sealing the opening of the plunger 1 and the liquid inlet device 4 so as to prevent the solution in the liquid inlet device 4 from leaking; compared with the prior art, the utility model provides a carry corrosive liquids's problem.
Specifically, the sample injector further comprises a locking nut 3, wherein the locking nut 3 is used for locking the sealing sleeve 11 and the sealing gasket 13, so that the inner ring of the sealing sleeve 11 and the inner ring of the sealing gasket 13 are in close contact with the plunger 1, and the sealing purpose is achieved.
As an embodiment of the present invention, the sealing ring 12 is located between the sealing sleeve 11 and the sealing gasket 13 for fastening the sealing sleeve 11.
As an embodiment of the present invention, the liquid inlet device 4 includes a second cylinder 41, the inside of the second cylinder 41 is a cavity for placing the plunger 1 and storing liquid, and one end of the second cylinder 41 is an opening for the plunger 1 to go in and out.
As an embodiment of the present invention, the inner wall of the lock nut 3 is provided with a first thread groove 31; a protrusion 42 is arranged on the periphery of one end of the second column 41, and a second thread groove 44 is arranged on the outer surface of the protrusion 42; the first thread groove 31 and the second thread groove 44 are mutually meshed, so that the lock nut 3 locks the sealing sleeve 11 and the sealing gasket 13 through the bulge 42, and the sealing ring 12 is deformed and in interference fit, thereby realizing absolute sealing.
As an embodiment of the present invention, the other end of the second column 41 protrudes outward to form a liquid conveying portion 43, a liquid conveying hole 431 is provided at the bottom of the liquid conveying portion 43, and the liquid conveying hole 431 is used for conveying external liquid into the second column 41 and outputting the liquid in the second column 41 to an external container.
As an embodiment of the present invention, the liquid conveying part 43 has a certain length, and the outer surface of the liquid conveying part 43 is provided with a thread groove to connect an external device.
As an embodiment of the present invention, the plunger connector 2 includes a first cylinder 22, one end of the first cylinder 22 is an opening to insert the plunger 1, a motor connecting portion 21 protruding outward is provided in the middle of an upper surface 23 of the first cylinder 22 to connect a motor, the motor connecting portion 21 has a certain length, and an annular recess 211 is provided on an outer surface of the motor connecting portion 21 to fix the motor; the inner part of the upper surface 23 forms a first contact surface 201, the inner wall of the first cylinder 22 forms a second contact surface 202, the first contact surface 201 is connected with the top end of the plunger 1, the second contact surface 202 is connected with the side wall of the top part of the plunger 1, and the parts of the first contact surface 201 and the second contact surface 202 connected with the plunger 1 are bonded through glue so as to fixedly connect the plunger 1 with the plunger connector 2.
As an embodiment of the present invention, the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13 are made of teflon.
As an embodiment of the present invention, the inner wall of the protruding portion 42 is provided with a first annular step 401 and a second annular step 402, the first annular step 401 is used for fixing the sealing sleeve 11, and the second annular step 402 is used for fixing the sealing gasket 13.
Specifically, the plunger connector 2 is made of stainless steel; the side wall of the first body is provided with a fabrication hole 24, and the fabrication hole 24 is used for discharging excessive colloid when the plunger connector 2 is bonded with the plunger 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The piston type leak-free sample injector for corrosive solution is characterized by comprising
The liquid inlet device is used for inputting, outputting and storing the solution; the liquid inlet device is made of Teflon material, has good swelling resistance and chemical stability, and can store corrosive solution;
the plunger is positioned in the accommodating cavity of the liquid inlet device and is used for sucking or discharging a solution into or out of the liquid inlet device through reciprocating drawing movement; the plunger is made of zirconia materials, and the surface of the plunger is smooth, wear-resistant and corrosion-resistant;
the plunger connector is used for fixing the plunger and connecting a motor, so that the motor drives the plunger to perform reciprocating drawing movement through the plunger connector;
the sealing sleeve, the sealing ring and the sealing gasket are sleeved on the plunger and used for sealing the opening of the plunger and the liquid inlet device, so that the leakage of a solution in the liquid inlet device is avoided.
2. The piston-type leak-free sample injector for corrosive solutions as claimed in claim 1, further comprising a locking nut for locking the sealing sleeve and the sealing gasket, so that the inner ring of the sealing sleeve and the inner ring of the sealing gasket are in close contact with the plunger for sealing.
3. The piston-type leak-free sample injector according to claim 2, characterized in that the sealing gasket is located between the sealing sleeve and the sealing gasket for fastening the sealing sleeve.
4. The piston-type leak-free sample injector according to claim 3, characterized in that the sample injector comprises a second cylinder, the interior of the second cylinder is a cavity for placing the plunger and storing liquid, and one end of the second cylinder is open for the plunger to enter and exit.
5. The piston-type leak-free sample injector for corrosive solutions according to claim 4, characterized in that the inner wall of the lock nut is provided with a first thread groove; a protruding part is arranged on the periphery of one end of the second column body, and a second thread groove is formed in the outer surface of the protruding part; the first thread groove and the second thread groove are mutually meshed, so that the locking nut locks the sealing sleeve and the sealing gasket through the protruding part, and the sealing ring is in deformation interference fit, so that absolute sealing is realized.
6. The piston-type leak-free sample injector for corrosive solutions as claimed in claim 4, characterized in that the other end of the second cylinder protrudes outwards to form a liquid conveying part, and the bottom of the liquid conveying part is provided with a liquid conveying hole for conveying external liquid into the second cylinder and outputting the liquid in the second cylinder to an external container.
7. The piston-type leak-free sample injector according to claim 6, characterized in that the liquid delivery part has a certain length, and the outer surface of the liquid delivery part is provided with a thread groove for connecting with external equipment.
8. The piston-type leak-free sample injector for corrosive solutions as claimed in claim 1, wherein the plunger connector comprises a first cylinder, one end of the first cylinder is opened to receive the plunger, a motor connecting part protruding outwards is provided in the middle of the upper surface of the first cylinder to connect with a motor, the motor connecting part has a certain length, and the outer surface of the motor connecting part is provided with a ring-shaped recess to fix the motor; the inner part of the upper surface forms a first contact surface, the inner wall of the first cylinder forms a second contact surface, the first contact surface is connected with the top end of the plunger, the second contact surface is connected with the side wall of the top of the plunger, and the parts of the first contact surface and the second contact surface, which are connected with the plunger, are bonded through glue so that the plunger is fixedly connected with the plunger connector.
9. The piston-type leak-free sample injector according to claim 5, characterized in that the sealing sleeve, the sealing ring and the sealing gasket are made of Teflon.
10. The piston-type leak-free sample injector according to claim 9, characterized in that the inner wall of the projection is provided with a first annular step for fixing the sealing sleeve and a second annular step for fixing the sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338220.7U CN214887531U (en) | 2021-06-16 | 2021-06-16 | Piston type leak-free sample injector for corrosive solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338220.7U CN214887531U (en) | 2021-06-16 | 2021-06-16 | Piston type leak-free sample injector for corrosive solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887531U true CN214887531U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121338220.7U Active CN214887531U (en) | 2021-06-16 | 2021-06-16 | Piston type leak-free sample injector for corrosive solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887531U (en) |
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2021
- 2021-06-16 CN CN202121338220.7U patent/CN214887531U/en active Active
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