PE water hose connecting structure

Abstract

The utility model relates to a PE water hose connecting structure which comprises a base bottom plate, a connecting pipe is installed on the upper end face of the base bottom plate, the connecting pipe is located on a conical face from the outer end f face to the outer end g face, threads are formed between the f face and the g face, a check ring is arranged on the outer surface, between the f face and the threads, of the connecting pipe, and the outer surface of the connecting pipe is connected with a clamping assembly through the threads. A cavity is reserved between the clamping assembly and the surface of the connecting pipe, a reinforcing check ring is arranged in the cavity, a gap is reserved between the outer end face of the clamping assembly and the outer end face of the connecting pipe, the cavity is trapezoidal, the clamping assembly comprises a threaded connecting pipe which is connected with threads and installed on the surface of the connecting pipe, and a trapezoidal groove is formed in the inner wall of the threaded connecting pipe. A sinking groove is formed in the outer end of the trapezoidal groove, a fastening gasket is fixedly installed in the sinking groove, and the surface of the fastening gasket is inclined. The connecting structure solves the problems that the fixing performance of an existing connecting structure on a water hose is poor, and reliable connection of the water hose under high-speed circulation of water cannot be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hose connection, in particular to a PE hose connection structure. Background Art

[0002] During irrigation, if the length of the hose required for irrigation is not enough, generally the user bends the hose port and then inserts it into another hose. Then, when water enters the hose, it is tightened by the expansion of the hose. There is also a method of using a water pipe, sleeving the hose on the water pipe, and fixing it with iron wire or fastening pieces. For the first method of inserting one end of the hose into another hose, it is very easy to leak water. If fixed with iron wire or fastening pieces, it is very easy to damage the hose.

[0003] To solve such problems, Chinese Patent CN220205005U, a flexible hose connection device, points out that two flexible joints can be flattened, so that the hose can be directly wound and unwound by a conventional winding mechanism, which can improve efficiency and save space. And the connection device of this application uses a zipper to connect two hoses. After the zipper is closed, the axial tension between the two hoses is borne by the zipper, which can effectively prevent the two hoses from separating from each other. Since the inner diameter R1 of the zipper is smaller than the outer diameter R2 of the flexible sealing ring, after the zipper is closed, the inner circumference of the zipper squeezes the outer circumference of the flexible sealing ring, causing the flexible sealing ring to deform and seal and fit on the outer circumference of the first flexible joint, which can effectively avoid the occurrence of liquid leakage.

[0004] Although the above document improves the connection efficiency of two hoses, there are still certain problems. The two hoses are connected by a zipper, so that the two hoses are pulled by relative axial forces, thereby avoiding separation. However, in actual use, the water in agricultural hoses is generally pumped from a well by a water pump, and the flow rate of the water is very fast. Therefore, if the above method is used, the zipper method cannot ensure the reliability of the connection.

[0005] Therefore, in order to solve the above problems, a PE hose connection structure that can ensure the connection reliability is hereby proposed. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a PE hose connection structure, which solves the problems that the existing connection structure has poor fixing performance for hoses and cannot ensure reliable connection of hoses under high-speed water flow.

[0007] To achieve the above object, the present utility model provides the following technical solution: A PE water hose connection structure, including a base bottom plate, on the upper end surface of the base bottom plate is installed a connecting pipe. The connecting pipe is in a conical surface from the outer end surface f to the surface g, and a thread is provided between the f surface and the g surface. A retaining ring is arranged on the outer surface of the connecting pipe between the f surface and the thread. The outer surface of the connecting pipe is threadedly connected with a clamping assembly. There is a cavity left between the clamping assembly and the surface of the connecting pipe. A reinforcing retaining ring is arranged in the cavity, and there is a gap between the outer end surface of the clamping assembly and the outer end surface of the connecting pipe. The cavity is trapezoidal. The clamping assembly includes a threaded connecting pipe that is connected and installed on the surface of the connecting pipe by the thread. The inner wall of the threaded connecting pipe is provided with a trapezoidal groove, and a sinking groove is opened at the outer end of the trapezoidal groove. A fastening washer is fixedly installed in the sinking groove. The surface of the fastening washer has an inclination, and the inclination angle is smaller than the inclination angle of the f surface of the connecting pipe. And a fillet is provided on the surface of the fastening washer facing the reinforcing retaining ring.

[0008] Through the above technical solution, further, the trapezoidal groove is composed of the d and c surfaces. The surface of the fastening washer is composed of a and b. b and d are on the same surface. There is a fillet between the d and c surfaces. The left side surface of the retaining ring is connected to the f surface of the outer surface of the connecting pipe through a fillet.

[0009] Further, when the threaded connecting pipe rotates clockwise, the a surface of the surface of the fastening washer contacts the f surface, the surface of the reinforcing retaining ring contacts the d surface, and the reinforcing retaining ring moves towards the lower right side as the width of the cavity decreases.

[0010] As a preferred technical solution, a support body is arranged on the inner wall of the connecting pipe. One end of the support body where the water flow direction is located is designed with an arc surface. The opening of the connecting pipe at the left end of the base bottom plate is the water flow direction port, and the opening of the other end of the connecting pipe is the water flow out port. The base bottom plate and the connecting pipe are of an integral structure.

[0011] Further, mounting holes are arranged in a circular array on the right side surface of the base bottom plate. Circular grooves are opened on the end surface both around and inside the mounting holes, and a sealing ring is installed in the grooves. The bottom width of the base bottom plate is twice the diameter of the threaded connecting pipe.

[0012] As a preferred technical solution, wavy protrusions are arranged on the f surface of the connecting pipe, and wavy protrusions are arranged near the opening on the surface of the fastening washer.

[0013] Further, an anti-slip convex ring is arranged on the surface of the threaded connecting pipe.

[0014] As a preferred technical solution, the length of the e surface of the trapezoidal groove is the same as the length of the thread provided between the f surface and the g surface, and the diameter of the reinforcing retaining ring is 2 / 3 of the length from the c surface to the f surface.

[0015] Compared with the prior art, the utility model provides a PE water hose connection structure, which has the following beneficial effects:

[0016] 1. In the actual process of this connection structure, first, the user inserts the water hose into the gap between the threaded connection pipe and the connection pipe, and then extends it inward until it feels resistance and it is relatively difficult to insert. At this time, the water hose passes through the a surface, b surface, d surface, c surface and then contacts the e surface (for details, please refer to Figure 7 as shown). Then, the user rotates the threaded connection pipe clockwise, and the threaded connection pipe starts to move to the right. At this time, the fastening washer installed in the trapezoidal groove starts to move to the right. Because the inclination of the a surface is smaller than that of the f surface, the fastening washer contacts the f surface, realizing the fastening effect on the water hose (for details, please refer to Figure 6 in combination with Figure 7 as shown). In order to further strengthen the fixation of the water hose, during the rightward movement of the threaded connection pipe, the reinforcement retaining ring located in the trapezoidal groove is under the pressure of the d surface, and will drive the reinforcement retaining ring to apply pressure in the direction perpendicular to the d surface. Since the reinforcement retaining ring is on the outer surface of the water hose after the water hose is inserted into the trapezoidal groove, the application of this pressure can achieve a good fixation effect on the water hose. And during the continuous application of the pressure, the reinforcement retaining ring will drive the water hose to move to the right so that the reinforcement retaining ring contacts the e surface, further improving the fixation effect on the water hose, thus solving the problem that the existing connection structure has poor fixation performance for the water hose and cannot ensure reliable connection of the water hose under the high-speed flow of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a PE water hose connection structure of the utility model;

[0018] Figure 2 is a schematic diagram of the anti-slip convex structure of a PE water hose connection structure of the utility model;

[0019] Figure 3 is a schematic diagram of the connection pipe structure of a PE water hose connection structure of the utility model;

[0020] Figure 4 is a schematic diagram of the retaining ring structure of a PE water hose connection structure of the utility model;

[0021] Figure 5 is a schematic diagram of the half-sectional structure of a PE water hose connection structure of the utility model;

[0022] Figure 6 is a PE water hose connection structure of the utility model Figure 5 partial enlarged structure schematic diagram at A;

[0023] Figure 7 is a PE water hose connection structure of the utility modelFigure 5 Schematic diagram of the partial enlarged structure at position B;

[0024] Figure 8 A PE water hose connection structure of the present utility model Figure 5 Schematic diagram of the partial enlarged structure at position C;

[0025] Figure 9 Schematic diagram of the threaded connection pipe structure of a PE water hose connection structure of the present utility model;

[0026] Figure 10 Schematic diagram of the sealing ring structure of a PE water hose connection structure of the present utility model;

[0027] Figure 11 Schematic diagram of the wavy protrusion structure of a PE water hose connection structure of the present utility model.

[0028] In the figure: 1. Base bottom plate; 2. Connecting pipe; 3. Retaining ring; 4. Threaded connection pipe; 5. Anti-slip convex ring; 6. Mounting hole; 7. Reinforcing retaining ring; 8. Sealing ring; 9. Tightening washer; 10. Support body; 11. Wavy protrusion. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment

[0031] Please refer to Figure 1-11 , the present utility model provides the following technical solutions: A PE water hose connection structure includes a base bottom plate 1. The upper end surface of the base bottom plate 1 is provided with a connecting pipe 2 through installation. The connecting pipe 2 is in a conical surface from the outer end surface f to the surface g. Threads are provided between the f surface and the g surface. A retaining ring 3 is arranged on the outer surface of the connecting pipe 2 between the f surface and the threads. A clamping assembly is connected to the outer surface of the connecting pipe 2 through threads. There is a cavity between the clamping assembly and the surface of the connecting pipe 2. A reinforcing retaining ring 7 is arranged in the cavity. And there is a gap between the outer end surface of the clamping assembly and the outer end surface of the connecting pipe 2. The cavity is trapezoidal. The clamping assembly includes a threaded connection pipe 4 that is connected and installed on the surface of the connecting pipe 2 with the threads. A trapezoidal groove is provided in the inner wall of the threaded connection pipe 4. And a sinking groove is provided at the outer end of the trapezoidal groove. A tightening washer 9 is fixedly installed in the sinking groove. The surface of the tightening washer 9 has an inclination. The inclination angle is smaller than the inclination angle of the f surface of the connecting pipe 2. And a fillet is provided on the surface of the tightening washer 9 facing the reinforcing retaining ring 7.

[0032] In this implementation plan, the specific working principle is as follows: Before use, the user needs to check whether there is any debris at the gap between the connecting pipe 2 and the threaded connecting pipe 4. If there is debris, it needs to be hooked out with a wire. Then, the water hose is extended inward through the gap into the trapezoidal groove. There is no need to apply excessive force. Just insert the water hose inward until it can no longer be inserted. At this time, the user rotates the threaded connecting pipe 4. Through the action of the thread, the fastening washer 9 inside the threaded connecting pipe 4 is driven to move to the right at the same time. Since the inclination of the a surface is less than that of the f surface, the fastening washer 9 contacts the f surface, realizing the fastening effect on the water hose (for reference, see Figure 6 Combined with Figure 7 as shown). In order to further strengthen the fixation of the water hose, during the rightward movement of the threaded connecting pipe 4, the reinforcing retaining ring 7 located in the trapezoidal groove is under the pressure of the d surface and will drive the reinforcing retaining ring 7 to apply pressure in the direction perpendicular to the d surface. Since the reinforcing retaining ring 7 is on the outer surface of the water hose after the water hose is inserted into the trapezoidal groove, good fixation effect on the water hose can be achieved through the application of this pressure. And during the continuous application of pressure, the reinforcing retaining ring 7 will drive the water hose to move to the right so that the reinforcing retaining ring 7 contacts the e surface, further improving the fixation effect on the water hose. At this time, when the user turns on the water pump, the high-speed water flow will quickly pass through the connection structure. Through the above method, it can better solve the problem that the connection of the water hose is unstable due to the very fast flow rate of water, and then solve the problem that the existing connection structure has poor fixation performance for the water hose and cannot ensure the reliable connection of the water hose under the high-speed flow of water.

[0033] For a more convenient explanation of the trapezoidal groove, specifically refer to Figure 9 and Figure 11 as shown. The trapezoidal groove is composed of the d and c surfaces. The surface of the fastening washer 9 is composed of a and b. b is on the same surface as d. There is a fillet between the d and c surfaces. The left side surface of the retaining ring 3 is connected to the f surface on the outer surface of the connecting pipe 2 through the fillet. When the threaded connecting pipe 4 moves to the right, its a surface contacts the f surface. In addition, the d surface contacts the surface of the reinforcing retaining ring 7. Through the above two reinforcement methods, the water hose can be effectively clamped and fixed, thereby preventing the phenomenon of unstable connection of the water hose.

[0034] To enhance the fixation effect of the water hose, specifically refer to Figure 6 Combined with Figure 7 as shown. When the threaded connecting pipe 4 rotates clockwise, the a surface on the surface of the fastening washer 9 contacts the f surface, and the surface of the reinforcing retaining ring 7 contacts the d surface. The reinforcing retaining ring 7 moves toward the lower right side as the cavity width decreases. Combined with the fact that there are wavy protrusions 11 provided on the f surface of the connecting pipe 2 and there are wavy protrusions 11 provided near the opening on the surface of the fastening washer 9, through the contact of the wavy protrusions 11 on the opposite sides, the clamping effect on the water hose is further improved.

[0035] In order to improve the strength of the connecting pipe 2, please refer to specifically Figure 5 It can be seen that a support body 10 is provided on the inner wall of the connecting pipe 2. The water flow direction end of the support body 10 is designed with an arc surface. It should also be noted that the opening of the connecting pipe 2 at the left end of the base bottom plate 1 is the water flow direction port, and the opening of the other end of the connecting pipe 2 is the water flow out port. The base bottom plate 1 and the connecting pipe 2 are of an integral structure. The base bottom plate 1 can be provided or not. If the water hose connection location is on the road, a connection structure with a base bottom plate 1 can be selected. If it is in the field, a structure with a substitute base bottom plate 1 can be not selected.

[0036] In order to be able to install two groups of connecting pipes 2, please refer to specifically Figure 10 It can be seen that mounting holes 6 are arranged in a circular array on the right side surface of the base bottom plate 1. Circular grooves are provided on the end surface both outside and inside the mounting holes 6, and a sealing ring 8 is installed in the grooves. The bottom width of the base bottom plate 1 is twice the diameter of the threaded connecting pipe 4.

[0037] In order to prevent the user from slipping when turning the threaded connecting pipe 4, please refer to specifically Figure 1 It can be seen that an anti-slip convex ring 5 is provided on the surface of the threaded connecting pipe 4.

[0038] According to the above, the length of the e surface of the trapezoidal groove is the same as the threaded length provided between the f surface and the g surface. The diameter of the reinforcing retaining ring 7 is 2 / 3 of the length from the c surface to the f surface. Therefore, the reinforcing retaining ring 7 can more effectively clamp and fix the water hose.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A PE water hose connection structure, including a base bottom plate (1), characterized in that: A connecting pipe (2) is installed on the upper end surface of the base bottom plate (1). The connecting pipe (2) is in a conical surface from the outer end surface f to surface g. Threads are provided between the f surface and the g surface. A retaining ring (3) is arranged on the outer surface of the connecting pipe (2) between the f surface and the threads. A clamping assembly is connected to the outer surface of the connecting pipe (2) by threads. A cavity is left between the clamping assembly and the surface of the connecting pipe (2). A reinforcing retaining ring (7) is arranged in the cavity. A gap is left between the outer end surface of the clamping assembly and the outer end surface of the connecting pipe (2). The cavity is trapezoidal. The clamping assembly includes a threaded connecting pipe (4) which is connected and installed on the surface of the connecting pipe (2) with the threads. A trapezoidal groove is opened on the inner wall of the threaded connecting pipe (4). A sinking groove is opened at the outer end of the trapezoidal groove. A fastening washer (9) is fixedly installed in the sinking groove. The surface of the fastening washer (9) is inclined. The inclination angle is smaller than the inclination angle of the f surface of the connecting pipe (2). And a fillet is provided on the surface of the fastening washer (9) facing the reinforcing retaining ring (7).

2. The PE water hose connection structure according to claim 1, characterized in that: The trapezoidal groove is composed of surfaces d and c. The surface of the fastening washer (9) is composed of a and b. b and d are on the same surface. A fillet is provided between the d surface and the c surface. The left side surface of the retaining ring (3) is connected to the f surface of the outer surface of the connecting pipe (2) through a fillet.

3. A PE water hose connection structure according to claim 1, characterized in that: When the threaded connecting pipe (4) rotates clockwise, the a surface of the surface of the fastening washer (9) contacts the f surface. The surface of the reinforcing retaining ring (7) contacts the d surface. The reinforcing retaining ring (7) moves towards the lower right side as the width of the cavity decreases.

4. The PE water hose connection structure according to claim 1, characterized in that: A support body (10) is arranged on the inner wall of the connecting pipe (2). One end of the support body (10) where the water flow direction is located is designed with an arc surface. The opening of the connecting pipe (2) at the left end of the base bottom plate (1) is the water flow direction port. The opening of the connecting pipe (2) at the other end is the water flow out port. The base bottom plate (1) and the connecting pipe (2) are of an integral structure.

5. A PE water hose connection structure according to claim 1, characterized in that: Mounting holes (6) are arranged in a circular array on the right side surface of the base bottom plate (1). Circular grooves are opened on the end surface both around and inside the mounting holes (6). And a sealing ring (8) is installed in the grooves. The bottom width of the base bottom plate (1) is twice the diameter of the threaded connecting pipe (4).

6. The PE water hose connection structure according to claim 1, characterized in that: Wave-shaped protrusions (11) are arranged on the f surface of the connecting pipe (2). Wave-shaped protrusions (11) are arranged on the surface of the fastening washer (9) near the opening.

7. A PE hose connection structure according to claim 1, characterized in that: An anti-slip convex ring (5) is arranged on the surface of the threaded connecting pipe (4).

8. A PE hose connection structure according to claim 1, characterized in that: The length of the e surface of the trapezoidal groove is the same as the length of the threads provided between the f surface and the g surface. The diameter of the reinforcing retaining ring (7) is 2 / 3 of the length from the c surface to the f surface.

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