CN214064141U - Micro non-permeable multifunctional joint - Google Patents
Micro non-permeable multifunctional joint Download PDFInfo
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- CN214064141U CN214064141U CN202022592119.6U CN202022592119U CN214064141U CN 214064141 U CN214064141 U CN 214064141U CN 202022592119 U CN202022592119 U CN 202022592119U CN 214064141 U CN214064141 U CN 214064141U
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Abstract
The utility model provides a micro non-permeable multifunctional joint, which comprises a multifunctional joint and a joint bearing structure, wherein the multifunctional joint is fixed on the joint bearing structure, the upper end of the multifunctional joint is connected with a hose, the lower end of the multifunctional joint is connected with a hard pipe, a penetrating element penetrates through the multifunctional joint in the longitudinal direction, the multifunctional joint is provided with a small joint top circle and a large joint bottom circle, the middle part of the periphery is provided with an inclined plane of the joint and a step surface of the joint, the multifunctional joint is arranged on a test tube container cover, and the installation relationship is interference fit; the overall structure design has avoided the "locking" phenomenon that screw thread and back taper brought, makes to connect dismantlement and update simple and convenient more, can adjust the hose and stretch into the test tube ground degree of depth, and interference fit has guaranteed that the leakproofness of structure is good, and stable in structure is reliable, ensures that hydraulic system pipeline system can normal operating.
Description
Technical Field
The utility model relates to a medical hydraulic system spare part field, concretely relates to micro non-permeable multifunctional joint.
Background
The joint of the gas-liquid mixing system conveying pipeline system is combined with the connecting pipe, so that a closed loop is formed among the chip, the sample pipe and the buffer liquid pipe, and the function of controlling the exchange of the sample liquid and the buffer liquid by pressure difference formed by gas circulation is realized. Therefore, the structure and the use performance of the joint directly influence the tightness of a closed loop of a hydraulic system conveying pipeline system and the fluency of infusion and gas transmission, and play a key role in the normal operation of the hydraulic system conveying pipeline system.
At present, the joint structure of a medical common hydraulic system conveying pipeline system is provided with a luer joint and an inverted cone joint. Ruhr joint can change the connection mutually through the inside and outside tooth of different models, changes the use size, belongs to threaded connection, and the internal and external screw thread leaves the footpath clearance after closure soon when using the screw-thread fit, influences the gas tightness, and current luer joint size specification on the market is great at present, can't satisfy the required specification size of this product trace fluid, and both cost are higher, is 3 ~ 4 times this product price. The back taper connects and forms by the back taper with connecting the cooperation, and the back taper forms for the combination of radius platform and cylinder, connects the fitting surface and also is radius platform type. The conical surface of the circular truncated cone is matched with the conical surface of the connector, and when the inverted cone penetrating through the connecting pipe enters the conical surface of the connector, the design of the conical surface leads the matching of the inverted cone, the connector and the air pipe to be point contact. The upper table top ring of the joint clamps the inverted cone surface, and the upper table top ring of the inverted cone air pipe clamps the air pipe. The contact area of the matching surface is small due to the influence of point contact matching, the air tightness cannot be ensured, and the locking phenomenon is easy to generate. Once the joint is damaged or contaminated, it is very inconvenient to install and replace a new member. The internal structures of the two connectors are of a straight-through type, and due to the fact that the hose is made of soft materials, when the hose is inserted into the connectors in a straight-through mode, the rotation of pipelines is easily caused, and the smoothness of liquid circulation can be affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the above mentioned problems, the utility model provides a micro non-permeable multifunctional joint, comprising a multifunctional joint and a joint bearing structure, characterized in that, the multifunctional joint is fixed on the joint bearing structure, the upper end of the multifunctional joint is connected with a hose, the lower end of the multifunctional joint is connected with a hard pipe, a penetrating element penetrates the multifunctional joint in the longitudinal direction, the multifunctional joint is provided with a small joint top circle and a large joint bottom circle, the middle part of the periphery is provided with an inclined plane of the joint and a step surface of the joint, the multifunctional joint is arranged on a test tube container cover and the installation relationship is interference fit; in the multifunctional joint, the lengths of the contact part of the hose and the joint, the contact part of the penetrating element and the joint and the contact part of the hard pipe and the joint can be flexibly arranged; the joint bearing structure is the joint of the multifunctional joint on the test tube container cover, and the fit relation between the multifunctional joint and the joint bearing structure of the test tube container cover is interference fit.
More specifically, the inclined surface of the multi-function joint is in contact with the inner inclined surface of the joint groove of the container cover, the step surface of the multi-function joint is in contact with the top surface of the cylindrical joint groove of the container cover, and the middle section of the joint cylinder is concentric with the middle section of the cylindrical joint groove of the container cover.
More specifically, among the test tube container lid connect the structure of accepting, container lid joint groove cylinder top surface is placed downwards, and the cooperation equipment from top to bottom of multi-functional joint cone end, container lid joint tank bottom great circle diameter is greater than joint top small circle, and container lid joint tank interlude circle cross-section diameter is less than joint top small circle, and joint bottom great circle diameter is greater than container lid joint tank bottom great circle, and the inclined plane card that connects gets into the inclined plane department of joint tank middle end, and both are interference fit.
More specifically, the hose enters the multi-function connector from the large cylindrical end of the multi-function connector and is connected with a through member forming a hose-to-connector contact portion, the through member being in interference fit with the hose.
More specifically, the multi-functional joint uses the stereoplasm material, and the hose material uses the material that can produce elastic deformation.
More specifically, the through-going element passes through the multi-function joint and the fitting connection where it passes is an interference fit.
The utility model discloses possess following beneficial effect:
(1) the integral structure design of the novel multifunctional joint avoids the problem that a radial gap is left after the internal and external threads are screwed together due to threaded connection and the phenomenon of locking caused by inverted cone, so that the connection pipe is simpler and more convenient to disassemble and update; the hose has a determined position, and the depth of the hose extending into the test tube can be adjusted;
(2) the multifunctional joint has the advantages that the hardness characteristic of the material of the multifunctional joint and the unique structural design are realized, the connecting pipe and the joint can be matched with pipes of various materials and sizes through an assembling mode that the connecting pipe is connected with the two ends or directly penetrates through the assembling mode, and a user can select different joints according to the structural requirements or the sizes of the connecting pipes;
(3) the multifunctional joint has the advantages that the multifunctional joint is good in structural sealing performance and stable and reliable in structure due to the interference fit of the hardness characteristic of the material of the multifunctional joint and the hose penetrating element of the internal structure, and the normal operation of a hydraulic system conveying pipeline system is guaranteed;
(4) the product is convenient to disassemble and update, the penetrating element and the hose can be directly taken out together, and the penetrating element or the hose can be replaced after the penetrating element and the hose are taken out;
(5) the manufacturing cost is low, and the production cost can be effectively controlled.
Drawings
Fig. 1 is a schematic view of three overall structures of the multifunctional joint of the present invention;
FIG. 2 is a schematic view showing the fitting relationship between the multifunctional joint and the joint receiving structure of the test tube container cover according to the present invention;
FIG. 3 is a schematic view of the assembly of the multifunctional adapter and the cap of the test tube container according to the present invention;
FIG. 4 is a schematic view of the multifunctional joint of the present invention in an assembly mode with two ends connected;
FIG. 5 is a schematic view of the assembly of the multifunctional joint of the present invention using a direct penetration joint;
FIG. 6 is an illustration of an embodiment of the multifunctional joint of the present invention;
in the figure: 1. gas inlet pipe, 2, gas input pipe, 3, sample, 4, liquid inlet, 11, test tube container cover, 12, outer surface of container cover contacting with joint step surface, 14, inner surface of container cover contacting with joint step surface, 21, multifunctional joint, 22, outer circumferential surface of container cover, 23, soft pipe, 24, through component, 25, hard pipe, 26, direct through connection pipe, 51, joint, 52, container cover, 53, gasket, 54, inner ring, 55, sample pipe, 56, hard pipe, 57, blood taking pipe, 101, inclined surface of joint, 102, step surface of joint, 103, soft pipe and joint contacting part, 104, through component and joint contacting part, 105, hard pipe and joint contacting part, 106, direct through connection pipe and joint contacting part, 201, inner inclined surface of container cover, 202, cylindrical top surface of container cover joint groove, 203, bottom of container cover joint groove is big circle, 204. the middle section of the container cover joint groove is round, 213, a joint top small circle, 214, a joint bottom big circle, 215, a joint inner middle end first section, 216, a joint inner middle end second section, 310, an original plate multifunctional joint, 311, a first end lengthening multifunctional joint, 312, a second end lengthening multifunctional joint, L1, a joint cylinder middle section, L2, a container cover joint groove cylinder middle section, F3 and a pinch valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.
Referring to fig. 1, the three overall structural diagrams of the multi-functional joint of the present invention are specifically divided into an original multifunctional joint 310, a first end-lengthened multifunctional joint 311, and a second end-lengthened multifunctional joint 312, where the three multifunctional joints 21 are different in that the hose inside the joint is in contact with the joint contact portion 103, the penetration element is in contact with the joint contact portion 104, and the length of the hard tube is different from that of the joint contact portion, so that the penetration element 24 is in contact with the multifunctional joint 21, and the penetration element is in contact with the joint contact portion 104, so that the depth of the hose 23 entering the multifunctional joint 21 is different from that of the hard tube 25 entering the multifunctional joint 21, and the user can select the hose according to his/her needs. The penetrating element is preferably a steel needle.
With reference to fig. 2 and fig. 3, fig. 4, do the utility model discloses multifunctional joint and test tube container lid's assembly and equipment schematic diagram, the utility model discloses a multifunctional joint for hydraulic system pipeline system includes multifunctional joint 21 and connects and accepts the structure, connects and accepts the structure promptly for on test tube container lid 11 multifunctional joint 21's junction the utility model discloses when 11 assembles with test tube container lid, the assembly principle is that the diameter that utilizes multifunctional joint 21, 11 each positions of test tube container lid is different, carries out the joint and ensures to connect closely, and the concrete contact condition of the multifunctional joint 21 installation department of 11 surfaces of test tube container lid and internal surface is: the outer surface of the container lid is in contact with the adapter step surface 12 and the inner surface of the container lid is in contact with the adapter step surface 14.
The upper end of the multifunctional joint 21 is connected with a hose 23, the lower end of the multifunctional joint 21 is connected with a hard pipe 25, a penetrating element 24 penetrates through the multifunctional joint 21 in the longitudinal direction, a joint top small circle 213 and a joint bottom large circle 214 are arranged on the multifunctional joint 21, a joint inclined plane 101 and a joint step surface 102 are arranged in the middle of the periphery of the multifunctional joint 21, and the multifunctional joint 21 is arranged on a test tube container cover 11 and is in interference fit; in the multifunctional joint 21, the lengths of the hose and joint contact part 103, the penetrating element and joint contact part 104 and the hard pipe and joint contact part can be flexibly set; the joint receiving structure is a joint of the multifunctional joint 21 on the test tube container cover 11, and the fit relationship between the multifunctional joint 21 and the joint receiving structure of the test tube container cover 11 is interference fit. In the figure, the reference number 22 is the outer circumferential surface 22 of the container cover, the inclined surface 101 of the multifunctional joint is contacted with the inner inclined surface 201 of the joint groove of the container cover, the step surface 102 of the multifunctional joint is contacted with the cylindrical top surface 202 of the joint groove of the container cover, the middle section L1 of the joint cylinder is concentric with the middle section L2 of the cylindrical middle section L2 of the joint groove of the container cover, and the diameter of the circle of the middle section L2 of the cylindrical middle section of the joint groove of the container cover is smaller than the diameter of the adjacent contact part and forms interference extrusion, so that the multifunctional joint 21 can be closely combined with the test tube container cover 11 after being installed, and the phenomenon of air leakage caused by gaps can not occur. In the connection receiving structure of the test tube container cover 11, the cylindrical top surface 202 of the container cover connection groove is placed downwards, the inclined plane 101 of the multifunctional connection is downward, the conical end of the multifunctional connection 21 is assembled in a matching way from top to bottom, the diameter of the large circle 203 at the bottom of the container cover connection groove is larger than the small circle 213 at the top of the connection, so the multifunctional connection 21 can enter the connection receiving structure of the test tube container cover 11, the diameter of the circular section 204 at the middle section of the container cover connection groove is smaller than the small circle 213 at the top of the connection, but due to the material property of the multifunctional connection 21, the multifunctional connection 21 can be pushed into the test tube container cover 11 without deforming the multifunctional connection 21, the diameter of the large circle 214 at the bottom of the connection is larger than the large circle 203 at the bottom of the container cover connection groove, after the multifunctional connection 21 enters the container cover, the large circumferential surface of the connection and the container cover are stressed and contracted due to interference fit, the contact mode is surface contact, and the air tightness of the outer matching surface at one end is ensured. At this time, the inclined surface 101 of the joint is clamped at the inclined surface entering the middle end of the joint groove, and both are in interference fit. If the multifunctional joint 21 is pulled without applying an external force manually, the multifunctional joint 21 is tightly fitted with the test tube container cover 11.
The various connecting pipes and the multifunctional joint 21 can be connected at two ends or assembled in a direct penetrating mode. The air tightness guarantee measures of the inner matching surfaces of the joint in the two assembling modes are different.
Fig. 4 is an assembly schematic diagram of the multifunctional joint of the present invention adopting two ends to connect, two ends of the multifunctional joint 21 connect the connecting pipes made of different materials, one end of the connecting pipe is connected with the hard pipe 25, one end of the connecting pipe is connected with the soft pipe 23, and the penetrating element 24 is used as an intermediate connector. When the hose 23 enters the multi-function connector 21 from the large cylindrical end of the multi-function connector 21, the hose 23 is first connected with the through-member 24 to form a hose and connector contact portion 103, which should avoid deformation and wrinkling of the hose 23, and the present application considers this point in the radius design, but once the installation is performed again, the through-member 24 and the hose 23 are in interference fit, and the depth of the hose 23 entering the through-member can be adjusted. The other end of the penetrating element 24 with the hose assembled is assembled with the multifunctional joint 21 from the small round end 213 at the top of the joint, the penetrating element 24 penetrates through the multifunctional joint 21, the penetrating position, namely the contact position with the multifunctional joint, is a penetrating element and joint contact part 104, and the penetrating element 24 is in interference fit with the joint contact part 104 due to the fact that the radius size of the penetrating element 24 is larger than that of the penetrating element and joint contact part 104 of the multifunctional joint 21. The hose section now contacts the fitting interior intermediate end second section 216; the rigid tube 25 is brought into connection with the other end from the bottom great circle 214 of the joint, and since the diameter of the penetrating element 24 is larger than that of the rigid tube 25, the two are in interference fit, and the section of the rigid tube is in contact with the first section 215 at the middle end inside the joint.
It should be noted that the multifunctional joint 21 is made of a hard material, and the multifunctional joint should be elastically deformable, for example, TPE or TPU with various hardness meeting the requirement may be used.
Fig. 5 is the utility model discloses multifunctional joint adopts direct through connection's equipment mode schematic diagram, multifunctional joint 21's interior fitting surface gas tightness safeguard measure is shown in the figure, directly run through takeover 26 and get into multifunctional structure 21 from connecting the big cylinder end, directly run through the contact surface of takeover 26 with multifunctional structure 21 and be directly run through takeover and connect contact segment 106, because the diameter size that directly runs through takeover 26 is greater than the diameter size that directly runs through takeover and connect contact segment 106, so the cooperation mode between the two is interference fit, the contact mode is face contact.
The utility model discloses possess following beneficial effect:
(1) the integral structure design of the novel multifunctional joint avoids the locking phenomenon caused by threads and inverted cones, so that the joint is simpler and more convenient to disassemble and update; the hose has a determined position, and the depth of the hose extending into the test tube can be adjusted;
(2) the multifunctional joint has the advantages that the hardness characteristic of the material of the multifunctional joint and the unique structural design are realized, the connecting pipe and the joint can be matched with pipes of various materials and sizes through an assembling mode that the connecting pipe is connected with the two ends or directly penetrates through the assembling mode, and a user can select different joints according to the structural requirements or the sizes of the connecting pipes;
(3) the multifunctional joint has the advantages that the multifunctional joint is good in structural sealing performance and stable and reliable in structure due to the interference fit of the hardness characteristic of the material of the multifunctional joint and the hose penetrating element of the internal structure, and the normal operation of a hydraulic system conveying pipeline system is guaranteed;
(4) the product is convenient to disassemble and update, the penetrating element and the hose can be directly taken out together, and the penetrating element or the hose can be replaced after the penetrating element and the hose are taken out;
(5) the manufacturing cost is low, and the production cost can be effectively controlled.
FIG. 6 is a diagram illustrating an embodiment of the multi-functional joint of the present invention, wherein the multi-functional joint 21 plays a role in a cell filtration apparatus, a sample 3 is placed in a gas input tube, a joint 51 corresponds to the gas inlet 1 of the gas input tube 2, and a container cover 52 is connected below the joint 51; the liquid inlet 4 can feed liquid and is connected with a pinch valve F3; assembling the multifunctional joint 21 on the test tube container cover 11 according to the attached figures 2, 3 and 4, and assembling the test tube container cover 11 and the inner ring 54, wherein the two are in interference fit; the sample tube 55 is put into the blood collection tube 57, and the hard tube 56 of the test tube container cover 11 is aligned with the blood collection tube 57 and assembled, and screwed tightly; in order to prevent air leakage after the test tube container cover 11 is assembled with the sample tube 55, a gasket 53 is added when the test tube container cover 11 is assembled with the sample tube 55, and finally the assembly is screwed down and the assembly is completed.
The utility model discloses a multifunctional joint 21 with use with the cell filter cooperation, accomplish the work of gaseous input/output, pressure difference change and liquid circulation by cell analyzer. The working process is as follows:
1) and for the air tightness test of the assembly mode that two ends of the multifunctional joint 21 are communicated with connecting pipes made of different materials, when air enters the liquid pipe through the hose 23 and the penetrating element 24, other hose passages are closed, and only the observation passage is ensured to have air input. The pressure is observed to reach the specified pressure within the specified time according to the program, and the pressure is not changed during pressure maintaining, so that the joint is proved not to leak gas. The multifunctional joint 21 and the cell analyzer form a closed loop, the sealing performance is good, and the normal operation of a gas-liquid mixing system conveying pipeline system is ensured.
2) The multifunctional joint 21 is subjected to air tightness test in an assembly mode of direct penetrating joint, and when gas enters a liquid inlet pipe through a connecting pipe, other hose passages are closed, so that only an observation passage is ensured to have gas input. The pressure is observed to reach the specified pressure within the specified time according to the program, and the pressure is not changed during pressure maintaining, so that the joint is proved not to leak gas. The multifunctional joint 21 and the cell analyzer form a closed loop, the sealing performance is good, and the normal operation of a gas-liquid mixing system conveying pipeline system is ensured.
3) When the liquid level in the pipe rises, the liquid enters the pipe from the multifunctional joint 21 at the moment, and no liquid leakage occurs at the multifunctional joint 21; after the liquid level stops rising, the rising amount of the liquid level in the pipe is recorded, and the liquid supplementing amount meets the set liquid supplementing amount of the program, so that the liquid leakage phenomenon of the multifunctional joint 21 can not occur. The material, the internal structure and the combination mode of each connecting pipe ensure that the structure is stable and reliable. Step 1 and step 2 or step 3 are performed simultaneously.
4) If the multifunctional joint 21 is polluted, the multifunctional joint is taken out by using pliers and disinfected for reuse or a new joint is installed, and the phenomenon of locking between the joint and the connecting pipe cannot occur.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.
Claims (6)
1. A micro non-permeable multifunctional joint comprises a multifunctional joint and a joint bearing structure, and is characterized in that the multifunctional joint is fixed on the joint bearing structure, the upper end of the multifunctional joint is connected with a hose, the lower end of the multifunctional joint is connected with a hard pipe, a penetrating element penetrates through the multifunctional joint in the longitudinal direction, a small joint top circle and a large joint bottom circle are arranged on the multifunctional joint, an inclined plane of the joint and a step surface of the joint are arranged in the middle of the periphery of the multifunctional joint, the multifunctional joint is arranged on a test tube container cover, and the installation relationship is interference fit; in the multifunctional joint, the lengths of the contact part of the hose and the joint, the contact part of the penetrating element and the joint and the contact part of the hard pipe and the joint can be flexibly arranged; the joint bearing structure is the joint of the multifunctional joint on the test tube container cover, and the fit relation between the multifunctional joint and the joint bearing structure of the test tube container cover is interference fit.
2. The micro non-osmotic multifunctional joint according to claim 1, wherein the inclined surface of the multifunctional joint is in contact with the inclined surface of the joint groove of the vessel cap, the step surface of the multifunctional joint is in contact with the cylindrical top surface of the joint groove of the vessel cap, and the middle section of the joint cylinder is concentric with the middle section of the cylindrical joint groove of the vessel cap.
3. The micro non-permeable multifunctional joint according to claim 1, wherein the joint receiving structure of the test tube container cover is configured such that the cylindrical top of the container cover joint groove is disposed downward, the conical end of the multifunctional joint is assembled in a top-down fit manner, the diameter of the large circle at the bottom of the container cover joint groove is larger than that of the small circle at the top of the joint, the diameter of the circular cross section of the middle section of the container cover joint groove is smaller than that of the small circle at the top of the joint, the diameter of the large circle at the bottom of the joint is larger than that of the large circle at the bottom of the container cover joint groove, and the inclined surface of the joint is clamped at the inclined surface entering the middle end of the joint groove, both of which are interference fit.
4. The micro non-permeable multifunctional joint according to claim 1, wherein the flexible tube enters the multifunctional joint from the large cylindrical end of the multifunctional joint and is connected with a penetrating element to form a flexible tube-joint contact part, and the penetrating element is in interference fit with the flexible tube.
5. The micro non-permeable multifunctional joint according to claim 1, wherein the multifunctional joint is made of a hard material, and the hose is made of a material capable of generating elastic deformation.
6. The micro non-porous multi-functional joint according to claim 1, wherein the through-element passes through the multi-functional joint and the fit connection there through is an interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592119.6U CN214064141U (en) | 2020-11-10 | 2020-11-10 | Micro non-permeable multifunctional joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592119.6U CN214064141U (en) | 2020-11-10 | 2020-11-10 | Micro non-permeable multifunctional joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214064141U true CN214064141U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022592119.6U Active CN214064141U (en) | 2020-11-10 | 2020-11-10 | Micro non-permeable multifunctional joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214064141U (en) |
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2020
- 2020-11-10 CN CN202022592119.6U patent/CN214064141U/en active Active
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