Anti-vortex pipe joint

Abstract

The utility model relates to an anti-vortex pipe joint, including an outer sleeve and a joint body, wherein the joint body is inserted into an embedding groove of a hose, and an annular inner seal is provided at one end of the joint body located in the embedding groove, one end of the inner seal is inserted into the joint body and slides axially along the joint body, and the other end of the inner seal contacts the end of the embedding groove, and an outer fastener for fixing the inner seal is sleeved on the hose. The utility model generates a gap between the end of the joint body and the end of the embedding groove. At this time, a special tool is inserted into the inner hole of the joint body to push the inner seal to slide backward, so that the end of the inner seal is pressed against the end face of the embedding groove to seal the gap, and after sealing, the inner seal is positioned and fastened by the outer fastener to avoid leakage caused by long-term impact of high-pressure fluid on the gap, thereby improving the sealing performance, safety and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to an anti-vortex pipe joint. Background Art

[0002] Usually, the most common way to connect hoses such as rubber hoses is to use hose connectors. Hose connectors generally include a connector body and a locking nut that can be rotatably connected to one end of the connector body. When in use, the locking nut is used to connect with other equipment, and the other end of the connector body is inserted into the hose. In order to prevent the hose from slipping out of the connector body, a plurality of inverted tooth structures are usually provided on the outer circumferential surface of the connector body. A jacket is placed on the outside of the hose, and a special crimping device is used to press the jacket. By applying pressure to the jacket, the hose is clamped between the jacket and the connector body.

[0003] In order to ensure smooth flow of fluid in the hose, the inner hole of the connector body and the inner hole of the hose need to be consistent in diameter. Therefore, when the existing hose is produced, an annular embedding groove is usually processed at the hose port. When in use, the connector body is inserted into the embedding groove, thereby facilitating the connection between the hose and the connector body.

[0004] However, when the existing hose connector is radially compressed, the hose will be displaced axially backward after being squeezed, so that a deep gap is generated between the connector body and the end of the embedding groove. When the fluid transported in the hose passes through the connector body, eddy currents will be generated in the gap, reducing the transport efficiency. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides a hose connector which can seal the gap, reduce the eddy current phenomenon and improve the fluid conveying efficiency.

[0006] The utility model is realized through the following technical scheme: an anti-vortex pipe joint, comprising an outer sleeve and a joint body, wherein the joint body is inserted into an embedding groove of a hose, and an annular inner seal is provided at one end of the joint body located in the embedding groove, one end of the inner seal is inserted into the joint body and slides axially along the joint body, and the other end of the inner seal contacts with the end of the embedding groove.

[0007] In this solution, the hose is clamped and fixed between the outer sleeve and the connector body. The outer sleeve is pressed by a special device to clamp and tighten the hose. When the outer sleeve is pressed, the hose will move away from the connector body, thereby generating a gap between the connector body and the end of the embedded groove. The connector body is plugged with an inner seal. The inner seal is slid toward the end of the embedded groove by a tool, so that the end of the inner seal contacts the end of the embedded groove, thereby closing the gap, thereby reducing the eddy current phenomenon and improving the fluid delivery efficiency.

[0008] As an optimization, the inner hole of the inner seal has the same diameter as the inner hole of the connector body, and an annular inner groove matching the outer diameter of the inner seal is provided inwardly at the port of the connector body, and the inner seal is inserted into the inner groove. In this optimization solution, the inner hole of the inner seal has the same diameter as the inner hole of the connector body, so that the fluid in the hose can flow more smoothly when passing through the inner seal, and the inner groove is provided to facilitate the insertion of the inner seal.

[0009] As an optimization, the end face of the embedded groove is a transition slope. In this optimization solution, when the fluid passes through the embedded groove, the slope is set to make the fluid enter the inner hole of the joint body more smoothly, reduce the collision between the fluid and the end face, and further reduce the generation of eddy current phenomenon.

[0010] As an optimization, an outer convex positioning ring is provided on the outer wall of the inner seal to seal and fit with the outer wall of the embedding groove. In this optimization solution, the inner seal is engaged in the embedding groove through the convex positioning ring to achieve the positioning effect of the inner seal.

[0011] As an optimization, an outer fastener for buckling and pressing the inner seal is provided on the hose. In this optimization solution, the inner seal is further buckled and fixed by the outer fastener, thereby improving the fastening effect of the inner seal and the hose.

[0012] As an optimization, a plurality of annular concave and convex parts are distributed axially on the inner circumferential surface of the outer fastener. This optimization solution improves the fastening and sealing properties of the buckling connection between the outer fastener and the hose.

[0013] As an optimization, an inner sleeve is provided between the outer sleeve and the connector body, and the inner sleeve is sleeved on the hose. The inner and outer circumferential surfaces of the inner sleeve are both provided with a plurality of annular concave and convex parts distributed along the axial direction. When the outer sleeve is buckled and pressed, the outer sleeve is subjected to weak force at the end and strong force in the middle, resulting in uneven force. By providing the inner sleeve, the inner sleeve is subjected to force as a whole to press the hose, thereby improving the tightness and sealing of the connection with the hose.

[0014] As an optimization, a limiting groove for engaging the inner sleeve is provided on the inner circumferential surface of the outer sleeve. When the outer sleeve of this optimization solution is buckled, displacement of the inner sleeve is prevented.

[0015] The utility model has the following beneficial effects: when the outer sleeve is buckled, the hose is displaced, so that a gap is generated between the connector body and the end of the embedding groove. An inner seal is inserted into the connector body, and the inner seal is slid toward the end of the embedding groove by a tool, so that the end of the inner seal contacts the end of the embedding groove. Since the length of the inner seal is greater than the length of the gap, the gap is closed, thereby reducing the eddy current phenomenon and improving the fluid delivery efficiency.

[0016] The inner seal is pressed and sealed against the inner and outer walls of the embedded groove by the cooperation of the outer convex positioning ring and the outer fastener, so as to achieve the positioning and fixing effect of the inner seal.

[0017] An annular inner sleeve is arranged in the annular cavity. When the outer sleeve is buckled, the inner sleeve as a whole is pressed against the hose, thereby further improving the sealing performance of the hose clamping, so that the hose connector and the hose have a highly sealed connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the utility model;

[0019] Figure 2 This is a cross-sectional view of the utility model;

[0020] Figure 3 This is a schematic diagram of the hose connector and hose connection of the utility model;

[0021] Figure 4 It is a schematic diagram of a hose connector and a hose connection in the prior art;

[0022] Figure 5 is a cross-sectional view of the joint body;

[0023] Figure 6 is a cross-sectional view of the outer sleeve;

[0024] Figure 7 is a cross-sectional view of the inner sleeve;

[0025] Figure 8 is a cross-sectional view of an external fastener;

[0026] Fig. 9 This is a cross-sectional view of the hose;

[0027] As shown in the figure:

[0028] 1. Hose, 11. Embedded groove, 2. Connector body, 21. Inner embedded groove, 3. Outer sleeve, 31. Limiting groove, 4. Inner sleeve, 5. Inner sealing member, 51. Outer convex positioning ring, 6. Outer fastener, 7. Connecting sleeve, 8. Locking nut, 9. Annular concave-convex portion, 10. Annular trapezoidal groove. DETAILED DESCRIPTION

[0029] In order to ensure smooth flow of fluid in the hose, the inner hole of the connector body and the inner hole of the hose need to be consistent in diameter. Therefore, when the existing hose is produced, an annular embedding groove is usually processed at the hose port. When in use, the connector body is inserted into the embedding groove, thereby facilitating the connection between the hose and the connector body.

[0030] However, when the existing hose connector radially compresses the hose, the hose will be displaced axially backward after being squeezed, so that a deep gap is generated between the connector body and the end of the embedding groove. When the fluid transported in the hose passes through the connector body, eddy currents will be generated at the gap, reducing the transport efficiency. Therefore, the present application provides a pipe connector that can prevent eddy currents from being generated at the gap.

[0031] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0032] like Figures 1 to 9 As shown, an anti-vortex pipe joint includes an outer sleeve 3 and a joint body 2. The joint body 2 is inserted into an embedding groove 11 of a hose 1, and an annular cavity for clamping the hose 1 is formed between the outer sleeve 3 and the joint body 2.

[0033] Specifically, an annular connecting sleeve block 7 is fixedly mounted on the joint body 2, an annular groove is formed on the outer circumferential surface of the connecting sleeve block 7, a clamping ring adapted to the groove is integrally formed on the inner wall of the front end of the outer sleeve 3, and the outer sleeve is engaged in the groove through the clamping ring to realize the fixed connection between the outer sleeve and the joint body, so that the annular cavity is formed between the outer sleeve and the joint body.

[0034] The front end of the connector body 2 is rotatably connected with a locking nut 8, and the locking nut 8 is used to connect with other equipment. The rear end of the connector body 2 is inserted into the embedding groove 11 of the hose.

[0035] Specifically, the inner hole of the connector body 2 and the inner hole of the hose 1 have the same aperture, and the inner hole at the end of the hose 1 is recessed inward to form an annular embedding groove 11, and the outer diameter of the embedding groove 11 is adapted to the outer diameter of the connector body 2, so that when the connector body 2 is inserted into the embedding groove 11, the inner hole of the connector body 2 and the inner hole of the hose 1 are on the same axis to ensure smooth passage of the fluid.

[0036] An annular inner seal 5 is provided at one end of the joint body 2 located in the embedding groove 11. One end of the inner seal 5 is inserted into the joint body 2 and slides axially along the joint body, and the other end of the inner seal 5 contacts the end of the embedding groove 11. The length of the inner seal 5 described in this embodiment is greater than the length of the gap between the joint body 2 and the end of the embedding groove 11, and the inner seal 5 is slidably arranged in the direction close to the end of the embedding groove 11 along the axial direction of the joint body 2.

[0037] Specifically, the inner hole of the inner seal 5 has the same diameter as the inner hole of the joint body 2, and an annular inner groove 21 matching the outer diameter of the inner seal 5 is provided inwardly at the port of the joint body 2, and the length of the inner groove 21 is not less than the length of the inner seal 5. The inner seal 5 is inserted into the inner groove 21, so that the inner hole of the inner seal 5 and the inner hole of the joint body 2 are on the same axis, further ensuring the smoothness of the fluid passing through.

[0038] The end face of the inner groove 21 of this embodiment is a transition slope. The inner seal 5 is chamfered at one end away from the end of the embedding groove 11, so that the end of the inner seal 5 forms a slope port inclined from outside to inside, which is convenient for fluid transition and flow.

[0039] The outer wall of the inner seal 5 is provided with an outer convex positioning ring 51 engaged with the embedding groove 11. The outer convex positioning ring 51 is provided at one end of the inner seal 5 close to the end of the embedding groove 11 to improve the sealing performance of the inner seal end and the embedding groove end. The hose 1 is sleeved with an outer fastener 6 for pressing the inner seal 5. The inner circumferential surface of the outer fastener 6 is provided with a plurality of annular concave-convex portions 9 distributed along the axial direction. By pressing the outer fastener 6, the annular concave-convex portions 9 of the outer fastener and the outer convex positioning ring 51 seal and clamp the hose.

[0040] An inner sleeve 4 is provided between the outer sleeve 3 and the connector body 2. The inner sleeve 4 is sleeved on the hose 1 to seal the outer wall of the hose. A limiting groove 31 is provided on the inner circumferential surface of the outer sleeve 3 to engage with the inner sleeve 4. The length of the limiting groove 31 matches the length of the inner sleeve 4. The inner sleeve is engaged in the limiting groove to prevent displacement.

[0041] The outer circumferential surface of the connector body 2 is axially distributed with a plurality of annular concave-convex portions 9 for tightening and sealing the inner wall of the hose 1 . The inner and outer circumferential surfaces of the inner sleeve 4 are axially distributed with a plurality of annular concave-convex portions 9 for tightening and sealing the outer wall of the hose 1 and the inner wall of the outer sleeve 3 .

[0042] The annular concave-convex part 9 of this embodiment is composed of a plurality of annular rectangular grooves and a plurality of annular rectangular protrusions arranged at intervals. In this embodiment, a plurality of annular trapezoidal grooves 10 are also provided on the inner circumference of the inner sleeve and the outer circumference of the connector body. The plurality of annular trapezoidal grooves 10 are arranged at the front side of the annular concave-convex part 9, and annular trapezoidal protrusions are formed between adjacent annular trapezoidal grooves 10. The width of the annular trapezoidal groove is greater than the width of the annular rectangular groove, which further improves the tightness and sealing of the hose after buckling.

[0043] The special crimping equipment used to crimp the outer sleeve 3 and the outer fastener 6 is an existing conventional equipment and will not be described in detail. This embodiment also requires a special tool that can push the inner seal 5 to slide. The special tool can be inserted into the inner hole of the joint body 2 and push the inner seal 5 to slide. For example, a plug rod that can be inserted into the inner hole of the joint body can be provided. The end of the plug rod adopts an elastic bifurcation structure. The elastic bifurcation structure can always keep in contact with the inner wall according to the change of the aperture of the joint body. As the plug rod is inserted, the two bifurcated structures are pressed against the upper and lower ends of the inner seal to push the inner seal to slide. Those skilled in the art can easily optimize and process it according to the principle of use.

[0044] Directions:

[0045] a. When in use, completely insert the inner seal 5 into the inner groove 21 of the connector body 2. Set the hose 1 between the inner sleeve 4 and the connector body 2, insert the end of the connector body 2 with the inner seal 5 into the embedding groove 11 of the hose, and press against the end of the embedding groove 11;

[0046] b. Use a special crimping device to crimp the outer sleeve 3, and apply pressure to the outer sleeve 3 so that the inner sleeve 4 and the connector body 2 clamp and seal the hose 1. When the outer sleeve 3 is crimped, the hose 1 is squeezed and displaced axially backward, thereby creating a gap between the connector body and the end of the embedding groove;

[0047] c. Use a special tool to reach into the inner cavity of the joint body 2, and push the inner seal 5 to slide towards the end of the embedding groove 11, so that the end of the inner seal 5 and the end of the embedding groove 11 are in contact and pressed tightly. This closes the gap and prevents the gap from generating eddy currents, thereby reducing the eddy current phenomenon and improving the fluid delivery efficiency;

[0048] d. Use a special crimping device to crimp the outer fastener 6 to achieve positioning and fixing of the inner seal 5.

[0049] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. An anti-vortex pipe joint, comprising an outer sleeve (3) and a joint body (2), wherein the joint body (2) is inserted into an embedding groove (11) of a hose (1), characterized in that: An annular inner seal (5) is provided at one end of the joint body (2) located in the embedding groove (11); one end of the inner seal (5) is inserted into the joint body (2) and slides axially along the joint body; the other end of the inner seal is in contact with the end of the embedding groove (11).

2. The anti-vortex pipe joint according to claim 1, characterized in that: The inner hole of the inner seal (5) has the same diameter as the inner hole of the joint body (2); an annular inner groove (21) matching the outer diameter of the inner seal (5) is provided inwardly at the port of the joint body (2); and the inner seal (5) is inserted into the inner groove (21).

3. The anti-vortex pipe joint according to claim 2, characterized in that: The end surface of the embedded groove (21) is a transition slope.

4. The anti-vortex pipe joint according to claim 1, characterized in that: An outer convex positioning ring (51) is provided on the outer wall of the inner sealing member (5) and is in sealing contact with the outer wall of the embedding groove (11).

5. The anti-vortex pipe joint according to claim 1, characterized in that: The hose (1) is sleeved with an external fastener (6) for pressing the internal sealing component (5).

6. The anti-vortex pipe joint according to claim 5, characterized in that: A plurality of annular concave and convex portions (9) are distributed along the axial direction on the inner circumferential surface of the external fastener (6).

7. The anti-vortex pipe joint according to claim 1, characterized in that: An inner sleeve (4) is provided between the outer sleeve (3) and the joint body (2), the inner sleeve being sleeved on the hose (1), and a plurality of annular concave and convex portions (9) being distributed along the axial direction on both the inner and outer circumferential surfaces of the inner sleeve (4).

8. The anti-vortex pipe joint according to claim 7, characterized in that: A limiting groove (31) for engaging with the inner sleeve is provided on the inner circumferential surface of the outer sleeve (3).

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