Quick-insertion type drip-proof device

Abstract

The invention relates to the technical field of drip-proof equipment, in particular to a quick-insertion type drip-proof device. Comprising a pipe body composed of an input pipe, an output pipe and a middle drip-proof cavity, the upper portion of the pipe body is connected with a drip-proof valve cover through threads, the top of the drip-proof valve cover is open, a pressure column capable of moving up and down is installed in the middle of the drip-proof valve cover, a spring is installed between the pressure column and the drip-proof valve cover, and a rubber sheet is arranged in the drip-proof cavity. The rubber sheet is positioned on a passage for connecting the input pipe and the output pipe of the drip-proof cavity; through the effect of the built-in spring, a closed water flow channel can be rapidly cut off, and water flow dripping is prevented; the vertical cavity is adopted in the direction perpendicular to the input direction and the output direction instead of the same direction, and tiny omission can be prevented when water flow is cut off.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-drip devices, and particularly to a quick-insert anti-dripper. Background Art

[0002] In many fields such as agricultural irrigation, industrial fluid transportation, and garden landscape maintenance, fluid transportation devices are widely used. Taking agricultural irrigation as an example, drip irrigation technology, as an efficient water-saving irrigation method, greatly improves water resource utilization rate and promotes the growth and development of crops by directly delivering water and nutrients near the roots of crops. However, in the actual application process, there is a common problem that needs to be solved urgently in traditional irrigation pipeline connectors and fluid control devices - the dripping phenomenon after the water supply is stopped.

[0003] The dripping phenomenon refers to the phenomenon that fluid (such as irrigation pipelines, industrial pipelines, valves, etc.) leaks out in the form of slow and continuous droplets from spraying and other positions during operation or shutdown. Figuratively speaking, it is like the water dripping when the faucet at home is not tightened. In the field of fluid transportation, whether it is water, chemical agents, oil products, etc., a similar situation of continuous micro-leakage may occur.

[0004] However, the existing anti-drippers have disadvantages such as inconvenient installation, extremely complex structure, and high cost, which are not conducive to agricultural promotion and use. Therefore, there is an urgent need for a quick-insert anti-dripper to solve the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies in the prior art and achieve the above functions, the present invention provides a quick-insert anti-dripper.

[0006] The present invention is realized through the following technical solutions: A quick-insert anti-dripper includes a pipe body composed of an input pipe, an output pipe, and an intermediate anti-drip cavity. The upper part of the pipe body is connected to an anti-drip valve cover by threads. The top of the anti-drip valve cover is open and a pressure column capable of moving up and down is installed in the middle. A spring is installed between the pressure column and the anti-drip valve cover. A rubber sheet is arranged in the anti-drip cavity, and the rubber sheet is located on the passage connecting the input pipe and the output pipe in the anti-drip cavity.

[0007] Furthermore, the anti-drip cavity includes an annular cavity communicated with the input pipe, and also includes a vertical cavity communicated with the internal output port of the output pipe. The annular cavity and the vertical cavity are blocked by the rubber sheet pressed down from the top.

[0008] Furthermore, the anti-drip valve cover further includes a cover shell. A displacement pipe is arranged inside the cover shell. The top of the displacement pipe is injection-molded with the cover shell as a whole. A plurality of columns of vertical inwardly protruding limiting strips are arranged on the inner wall of the displacement pipe. The rubber sheet is located inside the displacement pipe and is in clearance fit with the limiting strips; The top of the drip-proof cavity is open and is provided with a vertical pressure tube. The tube body cooperates with the internal thread of the cover shell through the external thread on the pressure tube.

[0009] Furthermore, the pressure column includes a limit support at the top, which is fixedly connected to the column hammer at the bottom through the column core below it, the diameter of the limit support is larger than the diameter of the column core, the limit support is located outside the anti-drip valve cover and the bottom of the limit support can abut against the opening of the anti-drip valve cover.

[0010] Furthermore, the rubber sheet is divided into two layers, the upper layer is a top pad and a plurality of grooves are provided on the edge of the top pad, and the size of the grooves is adapted to the limit strip; the lower layer is a bottom pad, and the outer edge of the bottom pad is adapted to the inner wall of the pressure tube. After the bottom pad is impacted by the water flow, its upper end surface can abut against the bottom surface of the displacement tube after installation.

[0011] Furthermore, an annular pressure bulge a is provided at the bottom of the column hammer, and the pressure bulge a is in the shape of a circular arc bulge. A circle of pressure bulges b is provided at the top opening of the vertical cavity, and the positions of the pressure bulges a and the pressure bulges b correspond.

[0012] Furthermore, a quick plug is installed at the end of the input pipe.

[0013] Furthermore, a circle of anti-slip texture is arranged on the outside of the cover shell.

[0014] Furthermore, an arrow for indicating a direction is plastically formed on the outer wall of the anti-drip chamber.

[0015] The beneficial effects of the present invention are: The present invention can quickly cut off the closed water flow path through the action of the built-in spring to prevent water from dripping; the present invention adopts a vertical cavity, which is perpendicular to the input and output directions but not in the same direction, and can prevent small omissions when cutting off the water flow; the rubber sheet of the present invention has a double-layer structure and has a guiding function, which prevents the main body from tilting, making its blockage unstable and the interception untimely; the present invention is exquisitely designed and can control the cost within 20 yuan, and has a very broad market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the pressure column of the present invention; Figure 2 A three-dimensional schematic diagram of the anti-drip valve cover of the present invention; Figure 3 for Figure 2 Bottom schematic diagram of ; Figure 4 is a three-dimensional schematic diagram of the tube body; Figure 5 for Figure 4 A three-dimensional schematic diagram of a half-section; Figure 6 Three-dimensional schematic diagram of a half-section of the whole of the present invention; Figure 7 is Figure 6 An enlarged schematic diagram at the circled A in Figure 8 Three-dimensional thermal schematic diagram of the present invention; Figure 9 Three-dimensional schematic diagram of a rubber sheet.

[0017] In the figure: 1. Pressure column, 101. Column hammer, 102. Column core, 103. Limit support, 104. Pressure convex a, 2. Anti-drip valve cover, 201. Cover shell, 202. Displacement tube, 2021. Limit strip, 203. Reinforcing rib, 204. Anti-slip texture, 3. Pipe body, 301. Quick plug, 302. Input pipe, 303. Output pipe, 3031. Output port, 304. Anti-drip cavity, 3041. Vertical cavity, 3042. Pressure convex b, 3043. Ring cavity, 305. Pressure pipe, 4. Spring, 5. Rubber sheet, 501. Bottom pad, 502. Top pad, 503. Notch. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention; all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0020] As Figures 1 to 9 shown, it includes a pipe body 3 composed of an input pipe 302, an output pipe 303, and an intermediate anti-drip cavity 304. The upper part of the pipe body 3 is threadedly connected to an anti-drip valve cover 2. The top of the anti-drip valve cover 2 is open and a pressure column 1 that can move up and down is installed in the middle to block the passage; a spring 4 is installed between the pressure column 1 and the anti-drip valve cover 2, and its function is to ensure that the water can only flow when the water pressure exceeds the spring force; a rubber sheet 5 is arranged in the anti-drip cavity 304. The rubber sheet 5 is located on the passage connecting the input pipe 302 and the output pipe 303 in the anti-drip cavity 304, and the rubber sheet 5 serves as the gateway to block the passage.

[0021] The drip-proof chamber 304 includes an annular chamber 3043 communicating with the input pipe 302, where the upstream water accumulates, and a vertical chamber 3041 communicating with the internal outlet 3031 of the output pipe 303. The annular chamber 3043 and the vertical chamber 3041 are blocked by a rubber sheet 5 pressed down from the top.

[0022] The drip-proof valve cover 2 further includes a cover shell 201. A displacement pipe 202 is arranged inside the cover shell 201. The top of the displacement pipe 202 is integrally injection-molded with the cover shell 201. A number of columns of vertically inwardly protruding limiting strips 2021 are arranged on the inner wall of the displacement pipe 202, mainly for guiding. The rubber sheet 5 is located inside the displacement pipe 202 and is in clearance fit with the limiting strips 2021. The top of the drip-proof chamber 304 is open and is provided with a vertical pressure pipe 305. The pipe body 3 is in threaded fit with the internal thread of the cover shell 201 through the external thread on the pressure pipe 305.

[0023] The pressure column 1 includes a limiting support 103 at the top. The limiting support 103 is fixedly connected to a column hammer 101 at the bottom through a column core 102 below it. The diameter of the limiting support 103 is larger than that of the column core 102. The limiting support 103 is located outside the drip-proof valve cover 2 and the bottom of the limiting support 103 can abut against the opening of the drip-proof valve cover 2 to prevent the pressure column 1 from falling off when the drip-proof valve cover 2 is unscrewed.

[0024] The rubber sheet 5 is divided into upper and lower layers. The upper layer is a top pad 502 for guiding and primary buffering. A number of notches 503 are arranged at the edge of the top pad 502. The size of the notches 503 is adapted to the limiting strips 2021. The lower layer is a bottom pad 501 for sealing and on-off. The outer edge of the bottom pad 501 is adapted to the inner wall of the pressure pipe 305. After the bottom pad 501 is impacted by water flow, its upper end surface can abut against the bottom surface of the displacement pipe 202 after installation. Reference Figure 6 As shown, the column core 102 is stepped, with the diameter of its upper half larger than that of its lower half. The upper half is in clearance fit with the top opening of the drip-proof valve cover 2, that is, the vertical displacement range of the column core 102 at the top opening of the drip-proof valve cover 2 is equal to the distance of the upper half of the column core 102.

[0025] Reference Figure 7 As shown, a circular pressure convex a 104 is arranged at the bottom of the column hammer 101. The pressure convex a 104 is in an arc convex shape. A circle of pressure convex b 3042 is arranged at the top opening of the vertical chamber 3041. The positions of the pressure convex a 104 and the pressure convex b 3042 correspond. When blocking the passage, due to the pressure, it will slightly sink into the rubber sheet 5 to ensure the sealing performance. There is a space for accommodating the spring 4 between the column hammer 101 body and the column core 102.

[0026] A quick plug 301 is installed at the end of the input pipe 302, which is conducive to the convenient installation of the water pipe.

[0027] The cover shell 201 is provided with a circle of anti-skid texture 204 on the outside to facilitate tightening when replacing internal components.

[0028] An arrow for indicating direction is plastically formed on the outer wall of the anti-drip chamber 304 to indicate the direction of water flow.

[0029] refer to Figure 5 As shown in the water flow arrow mark, the working principle of the present invention is: when the water flow is closed, the water pressure in the input pipe 302 is instantly reduced, so that the pressure of the spring 4 on the rubber sheet 5 is insufficient, and the rubber sheet 5 quickly descends to seal the opening of the vertical cavity 3041, so the water flow is quickly cut off; when the water flow is in a normal circulation state, the rubber sheet 5 is impacted by the pressure at the bottom, and the lifting force it receives is greater than the pressure of the spring 4.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A quick-insert type anti-dripping device, characterized in that: It includes a pipe body (3) composed of an input pipe (302), an output pipe (303), and an intermediate anti-drip cavity (304). The upper part of the pipe body (3) is threadedly connected to the anti-drip valve cover (2). The top of the anti-drip valve cover (2) is open, and a pressure column (1) capable of moving up and down is installed in the middle. A spring (4) is installed between the pressure column (1) and the anti-drip valve cover (2). A rubber sheet (5) is arranged in the anti-drip cavity (304), and the rubber sheet (5) is located on the path where the anti-drip cavity (304) connects the input pipe (302) and the output pipe (303).

2. The quick-insert type anti-drip device according to claim 1, characterized in that: The anti-drip cavity (304) includes an annular cavity (3043) communicating with the input pipe (302), and also includes a vertical cavity (3041) communicating with the internal output port (3031) of the output pipe (303). The annular cavity (3043) and the vertical cavity (3041) are blocked by the rubber sheet (5) pressed down at the top.

3. The quick-insert type anti-dripping device according to claim 2, characterized in that: The anti-drip valve cover (2) further includes a cover shell (201). A displacement pipe (202) is arranged inside the cover shell (201). The top of the displacement pipe (202) is injection-molded with the cover shell (201) as a whole. A number of columns of vertically inwardly protruding limiting strips (2021) are arranged on the inner wall of the displacement pipe (202). The rubber sheet (5) is located inside the displacement pipe (202) and is in clearance fit with the limiting strips (2021). The top of the anti-drip cavity (304) is open and is provided with a vertical pressure pipe (305). The pipe body (3) is in mutual cooperation with the internal thread of the cover shell (201) through the external thread on the pressure pipe (305).

4. The quick-insert type anti-drip device according to claim 3, wherein: The pressure column (1) includes a limiting bracket (103) at the top. The limiting bracket (103) is fixedly connected to the column hammer (101) at the bottom through the column core (102) below it. The diameter of the limiting bracket (103) is larger than the diameter of the column core (102). The limiting bracket (103) is located outside the anti-drip valve cover (2), and the bottom of the limiting bracket (103) can abut against the opening of the anti-drip valve cover (2). The column core (102) is in a stepped shape, with the upper half having a larger diameter than the lower half, and the upper half is in clearance fit with the top opening of the anti-drip valve cover (2).

5. The quick-insert anti-drip device according to claim 4, characterized in that: The rubber sheet (5) is divided into upper and lower layers. The upper layer is a top pad (502), and a number of notches (503) are arranged at the edge of the top pad (502). The sizes of the notches (503) are adapted to the limiting strips (2021). The lower layer is a bottom pad (501). The outer edge of the bottom pad (501) is adapted to the inner wall of the pressure pipe (305). After the bottom pad (501) is impacted by water flow, its upper end surface can abut against the bottom surface of the displacement pipe (202) after installation.

6. The quick-insert anti-drip device according to claim 5, characterized in that: A circular pressure convex a (104) is arranged at the bottom of the column hammer (101). The pressure convex a (104) is in an arc convex shape. A circle of pressure convex b (3042) is arranged at the top opening of the vertical cavity (3041). The positions of the pressure convex a (104) and the pressure convex b (3042) correspond to each other. An interval for accommodating the spring (4) is arranged between the column hammer (101) body and the column core (102).

7. The quick-insert anti-drip device according to claim 1, wherein: A quick plug (301) is installed at the end of the input pipe (302); A circle of anti-slip texture (204) is provided on the outer side of the cover shell (201).

8. The quick-insert anti-drip device according to claim 1, characterized in that: An arrow for indicating direction is formed by plasticizing on the outer wall of the drip-proof cavity (304).

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