CN210128150U - Flange lining sleeve joint structure - Google Patents
Flange lining sleeve joint structure Download PDFInfo
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- CN210128150U CN210128150U CN201920629653.4U CN201920629653U CN210128150U CN 210128150 U CN210128150 U CN 210128150U CN 201920629653 U CN201920629653 U CN 201920629653U CN 210128150 U CN210128150 U CN 210128150U
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- flange
- body unit
- corrosion
- anticorrosive coating
- flange part
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Abstract
The utility model relates to a flange lining sleeve joint structure, which comprises a body unit and an anti-corrosion layer coated on the body unit; the body unit is provided with a through flow channel and a flange part positioned at the front end, the flange part is concavely provided with a caulking groove, the flange part is provided with a neck part which forms a step difference shape with the flange part towards the rear, and the neck part is provided with a sleeve joint part which is smaller than the neck part towards the rear; the anticorrosive coating is covered on the surface of the flow channel of the body unit, the end surface of the flange part and the outer side surface of the sleeve part, and three blocking parts are formed on the flange part of the body unit and the outer side surface of the sleeve part by the anticorrosive coating; by this on the one hand can promote the airtight effect of this anticorrosive coating and the next of this body unit, on the other hand can make this runner of this body unit unobstructed degree, promotes the use efficiency of this coupling by this.
Description
Technical Field
The utility model relates to a flange lining sleeve pipe joint design indicates especially to provide one kind and can promote the airtight effect of this anticorrosive coating and the immediate of this body unit to and can make this runner of this body unit unobstructed degree, promote the flange lining sleeve pipe joint design of the work of use effect of this coupling by this.
Background
The push, liquid or gas transportation uses a pipe joint, by which the storage tank and the output pipe are connected, thereby facilitating the output or input of the liquid or gas. When liquid or gas with strong corrosiveness is to be conveyed, the pipe joint of the pipe joint needs to be provided with a pipe joint which is resistant to corrosion such as acid and alkali, and the like, so that the problem of leakage caused by corrosion of the pipe joint by the conveyed liquid or gas is avoided.
As shown in fig. 1, 2 and 3, the pipe joint 1 has corrosion resistance such as acid and alkali resistance; the pipe joint 1 is provided with a body unit 2 and an anticorrosive coating 3 coated on the body unit 2; the body unit 2 is made of metal material, the body unit 2 is provided with a through flow channel 2a, the front end of the body unit 2 is provided with a flange part 21 which is annularly and convexly arranged, an annular caulking groove 22 is concavely arranged on the flange part 21, the flange part 21 is provided with a neck part 23 which is in a step difference shape with the flange part 21 towards the rear, the neck part 23 is provided with a sleeve part 24 which is smaller than the neck part 23 towards the rear, and the periphery of the sleeve part 24 is provided with a plurality of through holes 25 which pass through the flow channel 2 a; a chamfered stopper groove 221 is formed in one bottom of the insertion groove 22 so as to extend outward of the flange 21.
As shown in fig. 1, 2, 3 and 4, the corrosion-proof layer 3 is made of a mixture of a material with corrosion-proof property and a plastic, the corrosion-proof layer 3 is coated on the inner and outer sides of the body unit 2 by injection molding, more specifically, the corrosion-proof layer 3 is coated on the surface of the flow channel 2a of the body unit 2, the end surface of the flange portion 21 and the outer side surface of the sleeve portion 24, and is embedded in the through hole 25; wherein, the outer side of the corrosion-resistant layer 3 at the connecting portion 24 is stepped by the mold during injection, thereby facilitating the connecting of the pipe P.
As shown in fig. 2 and 4, in the use of the pipe joint 1, a flange F is sleeved on the outer peripheral surface of the neck portion 23 of the body unit 2, and then a locking element S is inserted into a locking hole F1 of the flange F, and then locked on a locking hole TF1 of an outlet flange TF of a storage tank T for liquid or gas, and a gasket W for preventing leakage is interposed between the flange F and the outlet flange TF, and the gasket W covers the end face of the flange portion 21 of the body unit 2; the sleeving part 24 of the body unit 2 can be sleeved with a pipe P, and the pipe P is tightly matched with the sleeving part 24 by a pipe bundle C on the outer side of the pipe P, so that the pipe P is prevented from falling off from the sleeving part 24; therefore, the corrosive liquid or gas in the storage tank T can enter the flow passage 2a in the body unit 2 of the pipe joint 1 from the outlet flange TF and then flow into the pipe P, so that the corrosive liquid or gas in the storage tank T can be transported to other places.
The conventional pipe joint 1 is coated with the corrosion-resistant layer 3 through the surface of the flow channel 2a of the main body unit 2, the end surface of the flange portion 21 and the outer side surface of the sleeve portion 24, so that the corrosion-resistant layer 3 can prevent corrosive liquid or gas from directly contacting the main body unit 2 during transportation, thereby preventing the main body unit 2 from being corroded by the corrosive liquid or gas and damaged to cause leakage; however, the anticorrosive coating 3 made of plastic and the body unit 2 made of metal are made of two different materials so that how can the anticorrosive coating 3 be stably coated on the body unit 2 without being separated? This is achieved by forming some anti-separation means on the body unit 2. In the conventional pipe joint 1, the blocking groove 221 is formed on one side of the caulking groove 22 of the body unit 2, the corrosion-resistant layer 3 is coated in the blocking groove 221 to form the blocking portion 31, and the blocking portion 31 forms the blocking effect in the blocking groove 221; however, after the anticorrosive coating 3 is coated on the body unit 2, the anticorrosive coating 3 has only one blocking portion 31 on the body unit 2 due to the influence of the tensile force during demolding after coating, and thus a gap is generated between the anticorrosive coating 3 and the body unit 2, and the tight fit is lost; in addition, the through hole 25 of the body unit 2 is drilled, so that cracks are easily generated near the through hole 25, and the cracks near the through hole 25 further cause the anti-corrosion layer 3 to generate bubbles after being sprayed near the through hole 25, and further cause the air tightness of the anti-corrosion layer 3 sprayed on the body unit 2 to be lost; in addition, the liquid or gas has a certain conveying pressure when being conveyed, so that the pipe joint 1 can leak the conveyed liquid or gas; moreover, the corrosion-resistant layer 3 will penetrate into the through hole 25 to form a stopping portion 32 when the coating is sprayed, and after the tube bundle C is bound to the tube P, the stopping portion 32 of the corrosion-resistant layer 3 originally penetrating into the through hole 25 will protrude further toward the flow channel 2a, so that the stopping portion 32 of the corrosion-resistant layer 3 will damage the flow rate of the flow channel 2a on one hand, and will block dirt on the other hand, which further causes more serious damage to the flow rate of the flow channel 2 a.
Therefore, it is an urgent issue to provide a flange bushing joint structure that ensures the tight fit between the corrosion-resistant layer and the main body unit and ensures the flow rate of the flow passage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses main aim at provides a flange lining sleeve pipe joint structure can overcome the anticorrosive coating of conventional coupling and the gas tightness of body unit tight fit not good by this to and body unit runner receives defects such as anticorrosive coating hindrance.
The technical means adopted by the utility model are as follows.
Therefore, the main technical means of the present invention is to provide a flange lining sleeve pipe joint structure, which has a body unit, and an anti-corrosion layer coated on the body unit; the body unit is provided with a through flow channel and a flange part positioned at the front end, the flange part is concavely provided with a caulking groove, the flange part is provided with a neck part which forms a step difference shape with the flange part towards the rear, and the neck part is provided with a sleeve joint part which is smaller than the neck part towards the rear; the anticorrosive coating is covered on the surface of the flow channel of the body unit, the end surface of the flange part and the outer side surface of the sleeve part, and three blocking parts are formed on the flange part of the body unit and the outer side surface of the sleeve part by the anticorrosive coating.
The utility model discloses the efficiency that can reach by main technical means lies in: by this on the one hand can promote the airtight effect of this anticorrosive coating and the next of this body unit, on the other hand can make this runner of this body unit unobstructed degree, promotes the use efficiency of this coupling by this.
Drawings
Fig. 1 is an exploded view of a conventional pipe joint.
Fig. 2 is a perspective view of a conventional pipe joint.
Fig. 3 is a sectional view of a conventional pipe joint.
Fig. 4 shows an embodiment of the prior art pipe joint.
Fig. 5 is an exploded view of the pipe joint of the present invention.
Fig. 6 is a perspective view of the pipe joint of the present invention.
Fig. 7 is a cross-sectional view of the pipe joint of the present invention.
Fig. 8 shows another embodiment of the pipe joint of the present invention.
Fig. 9 shows an embodiment of the pipe joint of the present invention.
Description of the figure numbers:
1 pipe joint
2 body unit
21 flange part
22 caulking groove 221 blocking groove
23 neck part
24 socket joint part
25 perforation
2a flow channel
3 anticorrosive coating
31 stop 32 stop
4 pipe joint
5 body unit
51 flange 511 collar
512 block concave ring
52 caulking 521 blocking slot portion
53 neck
54 receiving surface of sleeve joint portion 541
5a flow channel
6 anticorrosive coating
61 first stop
62 second stop
63 third stop
C. C1 tube bundle
F. Fa flange
F1, Fa1 locking hole
P, P1 pipe fitting
S, S1 locking element
T, T1 storage tank
TF, TFa outlet flange
TF1, TFa1 lock hole
W, W1 a gasket.
Detailed Description
To facilitate understanding of the structure and the achieved effect of the present invention, the following description is provided with reference to the drawings.
First, referring to fig. 5 and 6, the pipe joint 4 of the present invention has a body unit 5 and an anti-corrosion layer 6 covering the body unit 5.
As shown in fig. 5, 6 and 7, the main body unit 5 is made of metal material, the main body unit 5 has a through flow channel 5a, the front end of the main body unit 5 has a flange part 51 protruding in a ring shape, the flange part 51 is provided with a ring-shaped caulking groove 52 in a concave manner, the flange part 51 has a neck part 53 having a step difference shape with the flange part 51 towards the rear, the neck part 53 has a socket part 54 having a diameter smaller than that of the neck part 53 towards the rear; an annular convex ring 511 is protruded forward from the end surface of the flange 51, a stop concave ring 512 is formed by chamfering the outer side of the upper end of the convex ring 511 and the end surface of the flange 51, and a stop groove 521 formed by a step-shaped chamfer is extended from the caulking groove 52 toward the flow passage 5 a; the outer periphery of the engaging portion 54 is formed with a rough receiving surface 541 by embossing.
As shown in fig. 8, the caulking groove 52 is provided with a blocking groove portion 521 extending in the direction of the flow path 5a and formed by chamfering.
As shown in fig. 5, 6 and 7, the corrosion-proof layer 6 is made of a mixture of a material with corrosion-proof function (such as teflon, etc.) and a plastic, the corrosion-proof layer 6 is coated on the inner and outer sides of the body unit 5 by injection molding, and more specifically, the corrosion-proof layer 6 is coated on the surface of the flow channel 5a of the body unit 5, the end surface of the flange portion 51 and the receiving surface 541 of the socket portion 54; the corrosion-resistant layer 6 can penetrate into the barrier concave ring 512 of the body unit 5 to form a first barrier portion 61, the corrosion-resistant layer 6 can penetrate into the barrier groove portion 521 of the body unit 5 to form a second barrier portion 62, and the receiving surface 541 of the sleeve portion 54 of the body unit 5 forms a rough surface in an embossing manner, so that the corrosion-resistant layer 3 can form a third barrier portion 63 when being sprayed on the receiving surface 541; therefore, the blocking effect of the first blocking portion 61, the second blocking portion 62 and the third blocking portion 63 can prevent the corrosion-resistant layer 6 and the main body unit 5 from generating a gap due to the pulling force of the mold during the demolding after the injection coating, so as to ensure the tight fit and air tightness between the corrosion-resistant layer 6 and the main body unit 5, and the outer side surface of the corrosion-resistant layer 3 injected and coated on the bearing surface 541 is stepped by the mold, thereby facilitating the sleeving of the pipe P1.
As shown in fig. 6, 7 and 9, in the present invention, a flange Fa is sleeved on the outer peripheral surface of the neck 53 of the body unit 5, and then a locking element S1 is inserted into a locking hole Fa1 of the flange Fa, and then locked into a locking hole TFa1 of an outlet flange TFa of a liquid or gas storage tank T1, and a leak-proof gasket W1 is interposed between the flange Fa and the outlet flange TFa, and the gasket W1 covers the end surface of the flange 51 of the body unit 5; the sleeving part 54 of the body unit 5 can be sleeved by a pipe P1, and a pipe bundle C1 is used to tighten the tight fit between the pipe P1 and the sleeving part 54 at the outer side of the pipe P1, so as to prevent the pipe P1 from falling off from the sleeving part 54; whereby corrosive liquid or gas in the storage tank T1 can enter the flow passage 5a in the body unit 5 of the pipe joint 4 from the outlet flange TFa and flow into the pipe P1, so that corrosive liquid or gas in the storage tank T1 can be transported to other places.
The main function of the present invention is to form the first blocking portion 61 by the penetration of the corrosion-resistant layer 6 into the blocking concave ring 512 of the body unit 5, the second blocking portion 62 by the penetration of the corrosion-resistant layer 6 into the blocking groove 521 of the body unit 5, and the rough surface by the embossing of the receiving surface 541 of the sleeve portion 54 of the body unit 5, so that the third blocking portion 63 can be formed by the penetration of the corrosion-resistant layer 3 on the receiving surface 541, thereby the blocking effect of the first blocking portion 61, the second blocking portion 62 and the third blocking portion 63 can be achieved to avoid the generation of a gap between the corrosion-resistant layer 6 and the body unit 5 caused by the pulling force of the mold release during the mold release after the penetration of the coating, and further ensure the tight-fitting airtightness between the corrosion-resistant layer 6 and the body unit 5; in addition, the receiving surface 541 of the sleeve portion 54 of the body unit 5 is formed into a rough surface by embossing, so that on one hand, the close airtight effect between the corrosion-resistant layer 6 and the body unit 5 can be improved, and on the other hand, the smoothness of the flow channel 5a of the body unit 5 can be improved, thereby improving the use effect of the pipe joint 4.
Claims (6)
1. A flange lining sleeve joint structure is provided with a body unit and an anticorrosive coating coated on the body unit; the body unit is provided with a through flow channel and a flange part positioned at the front end, the flange part is concavely provided with a caulking groove, the flange part is provided with a neck part which forms a step difference shape with the flange part towards the rear, and the neck part is provided with a sleeve joint part which is smaller than the neck part towards the rear; this anticorrosive coating cladding is on the runner surface of this body unit, the terminal surface of this flange portion and this lateral surface of cup jointing portion, its characterized in that: the anticorrosive coating forms three blocking parts on the flange part of the body unit and the outer side surface of the sleeve joint part.
2. The flange bushing structure according to claim 1, wherein the flange portion has a front end surface provided with an annular convex ring, and an outer side of an upper end of the convex ring and the end surface of the flange portion are chamfered to form a blocking concave ring; the corrosion-resistant layer forms a first barrier portion in the barrier concave ring.
3. The flange bushing terminal structure of claim 1, wherein the caulking groove is extended with a chamfer angle toward the flow passage to form a blocking groove portion; the anti-corrosion layer forms a second barrier in the barrier trench portion.
4. The joint structure of a flange bushing according to claim 2, wherein the outer periphery of the socket portion is provided with a rough receiving surface; the anticorrosive layer forms a third barrier part on the bearing surface.
5. The flange bushing joint structure of claim 3, wherein the chamfer of the stop groove portion is stepped.
6. The joint structure of a flange bushing according to claim 4, wherein the receiving surface is formed as a rough surface by embossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920629653.4U CN210128150U (en) | 2019-05-05 | 2019-05-05 | Flange lining sleeve joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920629653.4U CN210128150U (en) | 2019-05-05 | 2019-05-05 | Flange lining sleeve joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128150U true CN210128150U (en) | 2020-03-06 |
Family
ID=69662715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920629653.4U Active CN210128150U (en) | 2019-05-05 | 2019-05-05 | Flange lining sleeve joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128150U (en) |
-
2019
- 2019-05-05 CN CN201920629653.4U patent/CN210128150U/en active Active
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