CN210398015U - Hand-tightening high-pressure-resistant joint for liquid chromatograph - Google Patents
Hand-tightening high-pressure-resistant joint for liquid chromatograph Download PDFInfo
- Publication number
- CN210398015U CN210398015U CN201921208686.8U CN201921208686U CN210398015U CN 210398015 U CN210398015 U CN 210398015U CN 201921208686 U CN201921208686 U CN 201921208686U CN 210398015 U CN210398015 U CN 210398015U
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- China
- Prior art keywords
- joint
- liquid chromatograph
- ring
- cavity
- spring
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- Expired - Fee Related
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Abstract
The utility model provides a tight formula high pressure resistant joint for liquid chromatograph, including connecting the body, connect the body including connecting, the sword ring is installed to the front end that connects, the one end of sword ring is near there being grooved four-jaw anchor clamps, the one end of four-jaw anchor clamps is near there being the tighrening ring, the inside that connects is provided with the cavity, the front portion of cavity is used for placing tighrening ring and four-jaw anchor clamps, the rear portion in fixed chamber is used for placing removal round pin and spring, the removal round pin is used for withstanding the main pipe of stainless steel capillary, prevents to deviate from. The capillary tube consists of a large tube sleeve and a small tube, a spring is arranged in the cavity and props against the moving pin to prevent the moving pin from being separated from an inner pore passage of the joint, meanwhile, the depth of the capillary tube extending into a nut matched with the joint can be positioned, a fixing cap is arranged at the tail part of the joint and is connected with the joint by virtue of threads to prevent the spring from being separated, and the hand-tightening high-pressure-resistant joint for the liquid chromatograph is reasonable in design.
Description
Technical Field
The utility model relates to a liquid chromatograph equipment field specifically is a liquid chromatograph connects with high pressure resistant of hand-held type.
Background
At present, to the connection of high pressure liquid chromatography pipeline, adopt to connect the cooperation sword ring to connect usually, the sword ring is made by stainless steel usually, and under the condition of pressure, the sword ring that the stainless steel was made can die with the stainless steel pipeline card to guarantee the fastening effect. The disadvantage of this connection is that the joint cannot be reused, and when the pipeline or the chromatographic column needs to be replaced, the pipeline is stuck on the stainless steel pipeline because of the knife ring, so that the 'stroke' of the connection part is fixed, which is not beneficial to using different chromatographic columns. When different chromatographic columns are used, phenomena such as liquid leakage and the like often occur, and the other situation is that a joint made of the peek material is used, but the joint made of the peek material is usually not enough in pressure resistance and can only resist the pressure below 300bar, which obviously does not meet the requirement of high-pressure liquid phase.
Therefore, how to design a hand-tightening high-pressure-resistant joint for a liquid chromatograph becomes a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tight formula high pressure resistant joint for liquid chromatograph to solve the problem that provides in the above-mentioned background art, the utility model discloses novel structure can just can screw up the joint with the hand in the use, when the chromatographic column is changed to needs, can conveniently twist off used repeatedly.
In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a tight formula high pressure resistant connects for liquid chromatograph, includes and connects the body, connect the body including connecting, the one end of connecting sets up the sword ring, the one end of sword ring is tightly close to four-jaw anchor clamps, the one end of four-jaw anchor clamps is tightly close to there is the tighrening ring, the inside of connecting is provided with front and back fixed chamber, four-jaw anchor clamps, tighrening ring and sword ring, the rear portion of connecting installs removal round pin and spring, the joint passes through threaded connection together with the locking cap, the spring cooperatees with the removal round pin, the inside of sword ring is provided with the capillary outer tube, pass the capillary in the hole of locking cap, the capillary cooperatees with the capillary outer tube, be provided with on the outer wall of joint and remove the round pin through-hole, remove the round pin through-hole and cooperate for the tighrening ring.
As a preferred embodiment of the present invention, the joint comprises a front cavity and a rear cavity, the four-jaw clamp and the blade ring and the fastening ring are placed in the front cavity, and the blade ring, the four-jaw clamp and the fastening ring are fitted to each other.
As a preferred embodiment of the present invention, the outside of the fixing cavity of the joint is provided with a thread for cooperating with an external nut.
As a preferred embodiment of the present invention, the joint rear cavity is provided with a spring, and the spring can automatically adjust the depth of the capillary tube.
As a preferred embodiment of the present invention, the joint tail has an external thread, the fixing cap is provided with an internal thread, and the external thread is matched with the internal thread of the fixing cap.
The utility model has the advantages that: the utility model discloses a liquid chromatograph connects with high pressure resistant of compact form, including sword ring, four paws anchor clamps, tighrening ring, joint, removal round pin, spring, locking cap, rear end screw thread, rear end cavity, anterior cavity, capillary outer tube, capillary, removal round pin through-hole, the locking cap internal thread.
1. This liquid chromatograph fixes the pipeline through between the cutting ferrule with the high pressure resistant joint of compact formula, cooperatees through fixed cover and screwed joint simultaneously and installs the regulation fast, improves work efficiency.
2. This liquid chromatograph passes through to mutually support between the part with the high pressure resistant joint of compact type and accomplishes fixing the chromatograph pipeline, the installation or the dismantlement of being convenient for, it is convenient to use, and the simultaneous control that the precision improves is convenient.
3. The liquid chromatograph has the advantages of simple work, convenient production, reduced production cost, repeated use and reduced resource waste.
Drawings
Fig. 1 is a schematic structural view of a hand-held high pressure resistant joint for a liquid chromatograph according to the present invention;
fig. 2 is a schematic view of the internal structure of a hand-held high pressure resistant joint for a liquid chromatograph according to the present invention;
fig. 3 is a schematic view of the internal structure of the hand-tightening high-pressure-resistant joint mounting tube for a liquid chromatograph of the present invention;
fig. 4 is a schematic structural view of the hand-held high-pressure-resistant joint four-jaw clamp for a liquid chromatograph of the present invention;
fig. 5 is a schematic structural view of the hand-held high pressure resistant joint moving pin for a liquid chromatograph according to the present invention;
fig. 6 is a schematic structural view of a fastening ring of a hand-tightening high-pressure-resistant joint for a liquid chromatograph according to the present invention;
fig. 7 is a schematic view of the internal thread structure of the fastening cap of the hand-tightening high-pressure-resistant joint for a liquid chromatograph;
in the figure: 1-edge ring, 2-four-jaw clamp, 3-fastening ring, 4-joint, 5-moving pin, 6-spring, 7-fixing cap, 8-rear end screw thread, 9-rear cavity, 10-front cavity, 11-capillary external sleeve, 12-capillary, 13-moving pin through hole and 14-fixing cap internal screw thread.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1 to 7, the present invention provides a technical solution: a hand-held high-pressure resistant joint for a liquid chromatograph comprises a joint body, wherein the joint body comprises a joint 4, one end of the joint 4 is provided with a blade ring 1, one end of the blade ring 1 abuts against a four-jaw clamp 2, one end of the four-jaw clamp 2 abuts against a fastening ring 3, a front fixing cavity, a rear fixing cavity, the four-jaw clamp 2, the fastening ring 3 and the blade ring 1 are arranged in the joint 4, a moving pin 5 and a spring 6 are arranged at the rear part of the joint 4, the joint 4 is connected with a fixing cap 7 through threads, the spring 6 is matched with the moving pin 5, a capillary outer sleeve 11 is arranged in the blade ring 1, a capillary 12 is arranged in the fixing cap 7, the capillary 12 is matched with the capillary outer sleeve 11, a moving pin through hole 13 is arranged on the outer wall of the joint 4, and the moving pin through hole 13 is matched with the fastening ring 3, one end of the four-jaw clamp 2 and one end of the fastening ring 3 are both in a conical shape. The four-jaw clamp 2 and the fastening ring 3 are matched in a conical shape, so that the four-jaw clamp is convenient to take out and is not easy to clamp.
As a preferred embodiment of the present invention, the joint 4 comprises a front cavity 10 and a rear cavity 9, the four-jaw clamp 2 and the blade ring 1 and the fastening ring 3 are placed in the front cavity 10, and the blade ring 1, the four-jaw clamp 2 and the fastening ring 3 are mutually matched.
As a preferred embodiment of the present invention, the front fixing cavity of the joint 4 is externally provided with a thread for matching with an external female thread.
As a preferred embodiment of the present invention, the joint 4 is internally provided with a spring, and the spring can automatically adjust the depth of the capillary tube.
As a preferred embodiment of the present invention, the connector 4 has an external thread at the tail, the fixing cap 7 is provided with an internal fixing cap thread 14, and the external thread is matched with the internal fixing cap thread 14.
The working principle is as follows: when the device is used, the whole connector is assembled in advance, the capillary tube outer sleeve 11 sequentially penetrates through the fixing cap 7, the spring 6, the threaded connector 4, the fastening ring 3, the four-jaw cutting sleeve 2 and the edge ring 1, then the capillary tube 12 is matched with the moving pin 5, the moving pin and the spring slide into the rear cavity of the connector 4, the moving pin 5 extends into the through hole 13, and then the fastening ring 3, the four-jaw cutting sleeve 2 and the edge ring 1 are placed into the front cavity 10 of the connector 4 to complete assembly.
Under the exogenic action, usually manually screw up or use under the spanner fastening's the condition, connect 4 whole forward movements, drive fastener 3 and remove, constantly make four claw anchor clamps 2 lock, and then press from both sides tight capillary sleeve 11, prevent that capillary sleeve 11 from sliding, play the effect of fastening.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a liquid chromatograph is with resistant high pressure joint of compact form, includes the joint body, its characterized in that: the connector comprises a connector body (4), wherein one end of the connector body (4) is provided with a cutting edge ring (1), one end of the cutting edge ring (1) is abutted against a four-jaw clamp (2), one end of the four-jaw clamp (2) is abutted against a fastening ring (3), a front fixing cavity, a rear fixing cavity, the four-jaw clamp (2), the fastening ring (3) and the cutting edge ring (1) are arranged in the connector (4), a moving pin (5) and a spring (6) are arranged at the rear part of the connector (4), the connector (4) is connected with a fixing cap (7) through threads, the spring (6) is matched with the moving pin (5), a capillary outer sleeve (11) is arranged in the cutting edge ring (1), a capillary tube (12) is arranged in the fixing cap (7), the capillary tube (12) is matched with the capillary outer sleeve (11), a moving pin through hole (13) is arranged on the outer wall of the connector (4), the moving pin through hole (13) is matched with the fastening ring (3), and one ends of the four-claw clamp (2) and the fastening ring (3) are in a conical shape.
2. The hand-held high pressure resistant joint for liquid chromatograph of claim 1, wherein: the joint (4) comprises a front cavity (10) and a rear cavity (9), the four-jaw clamp (2), the edge ring (1) and the fastening ring (3) are placed in the front cavity (10), and the edge ring (1), the four-jaw clamp (2) and the fastening ring (3) are matched with each other.
3. The hand-held high pressure resistant joint for liquid chromatograph of claim 1, wherein: and the outside of the fixing cavity of the joint (4) is provided with threads for matching with an external nut.
4. The hand-held high pressure resistant joint for liquid chromatograph of claim 1, wherein: and a spring is arranged inside the joint (4).
5. The hand-held high pressure resistant joint for liquid chromatograph of claim 1, wherein: the tail of the joint (4) is provided with an external thread, the fixing cap (7) is provided with a fixing cap internal thread (14), and the external thread is matched with the fixing cap internal thread (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921208686.8U CN210398015U (en) | 2019-07-30 | 2019-07-30 | Hand-tightening high-pressure-resistant joint for liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921208686.8U CN210398015U (en) | 2019-07-30 | 2019-07-30 | Hand-tightening high-pressure-resistant joint for liquid chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210398015U true CN210398015U (en) | 2020-04-24 |
Family
ID=70357079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921208686.8U Expired - Fee Related CN210398015U (en) | 2019-07-30 | 2019-07-30 | Hand-tightening high-pressure-resistant joint for liquid chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210398015U (en) |
-
2019
- 2019-07-30 CN CN201921208686.8U patent/CN210398015U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 Termination date: 20210730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |