A multifunctional valve with inflation, pressure relief, isolation and connection functions

Abstract

The present invention discloses a multifunctional valve with inflation, pressure relief, isolation and communication functions, comprising a valve body, a valve core and a connecting valve body, the valve body comprising an inner valve body and an outer valve body, a connecting pipe is arranged below the inner valve body, the valve core comprises a valve core body, a flange is arranged at one end of the valve core body and a connecting pipe connecting end is arranged at the other end, a valve cover is arranged above the connecting valve body, a rotating handle is arranged between the connecting valve body and the valve core, the rotating handle and the connecting valve body are connected by threads, the rotating handle and the connecting valve body are connected by a screw, thereby realizing the function of inflating multiple air chambers, and the arrangement of the connecting valve body and the connecting valve core realizes the isolation and deflation functions.

Description

Technical Field

[0001] The present invention belongs to the field of valves, and in particular relates to a multifunctional valve with inflation, pressure relief, isolation and communication functions. Background Art

[0002] Inflatable rubber boats have the characteristics of small storage volume, light weight, easy to move, low price, and wide range of use environments. They have been widely used in all walks of life, especially in disaster relief, beach landing, etc.

[0003] Conventional inflatable rubber boats generally adopt a multi-chamber structure, and each chamber needs to be equipped with an inflation valve and a safety pressure relief valve. When inflating and deflation, the air chambers need to be inflated one by one. The inflation time is long, and it is necessary to manually switch the inflation position continuously, or multiple people need to cooperate in the operation. When the inflation pressure is too high, the safety pressure relief valve automatically deflates.

[0004] In order to improve the rapid response capability of rescue, firefighting, beach landing and other operations and shorten the inflation time, inflatable rubber boats with rapid inflation or centralized inflation have been developed and designed. Such products also need to have functions such as inflation and decompression. At the same time, air chamber isolation valves need to be installed to ensure the independence of each air chamber.

[0005] The inflation valve installed in the existing conventional inflatable rubber boat has only a single function. The safety pressure relief valve also has only a single function. Rapid inflation and centralized inflatable boats also need to be equipped with isolation valves or connecting valves, so each air chamber needs to be installed with 3 to 4 valves to complement all the required functions. It is not convenient to install, maintain or use.

[0006] Therefore, there is an urgent need for a valve that has the functions of inflation, safety pressure relief, communication and air chamber isolation. Summary of the invention

[0007] The purpose of the present invention is to provide a multifunctional valve with inflation, pressure relief, isolation and communication functions, aiming to solve the technical problems mentioned in the above background technology.

[0008] In order to solve the above problems, the technical solution adopted by the present invention is: a multifunctional valve with inflation, pressure relief, isolation and communication functions, including a valve body, a valve core and a connecting valve body, the valve body including an inner valve body and an outer valve body, a connecting pipe is arranged below the inner valve body, the valve core includes a valve core body, a flange is arranged at one end of the valve core body and a connecting pipe connecting end is arranged at the other end, a valve cover is arranged above the connecting valve body, a rotating handle is arranged between the connecting valve body and the valve core, the rotating handle and the connecting valve body are connected by a thread, and the rotating handle and the connecting valve body are connected by a screw.

[0009] An air distribution pipe is arranged at one end of the connecting pipe, and a conical protrusion is arranged at the other end. A conical groove is arranged at the connecting end of the connecting pipe, and the conical groove is arranged correspondingly to the conical protrusion.

[0010] The inner valve body is provided with a plurality of first vent holes, a screw installation cavity is provided between the inner valve body and the outer valve body, one end of the screw is located between the screw installation cavities, and the screw is provided with a spring.

[0011] An annular protrusion is arranged in the middle of the connecting valve body, and the annular protrusion divides the connecting valve body into a valve cover connecting end and a rotating handle connecting end. The rotating handle comprises a rotating handle body and a sleeve, and the sleeve is threadedly connected to the rotating handle connecting end.

[0012] A sealing ring groove is arranged at the connecting end of the valve cover, and a sealing ring is arranged in the sealing groove.

[0013] A baffle plate and a bottom plate of a communicating valve body are arranged inside the connecting end of the rotating handle, and a communicating valve core is arranged between the baffle plate and the bottom plate of the communicating valve body.

[0014] The connecting valve core is arranged in a T shape, a mounting tube is arranged on the bottom plate of the connecting valve body, one end of the connecting valve core is adjacent to the baffle plate, and the other end is inserted into the mounting tube.

[0015] A second vent hole is provided at the connecting end of the communicating valve body.

[0016] The beneficial effects of the present invention are:

[0017] 1. A valve body, a valve core and a connecting valve body are provided. One end of the connecting valve body can be connected to an external air pump, retaining the function of conventional pump charging, and can also be connected to an air storage tank. A threaded interface is designed to facilitate the expansion of other forms of docking methods. A connecting pipe is provided at the lower end of the valve body, and the connecting pipe is externally connected to an air distribution pipe to realize the function of inflating multiple air chambers. The setting of the connecting valve body and the connecting valve core realizes the functions of isolation and deflation.

[0018] 2. The valve body includes an inner valve body and an outer valve body. The valve core is sleeved on the inner side of the inner valve body. The connecting valve body is sleeved in the valve core. The connecting valve core is arranged in the connecting valve body. When inflating, the airflow passes between the baffle and the connecting valve core in the connecting valve body, passes through the second through hole on the connecting valve body, and then passes through the first through hole of the inner valve body, and finally through the connecting pipe and the air distribution pipe to realize the inflation function of different air chambers.

[0019] 3. A screw installation cavity is formed between the inner valve body and the outer valve body. The screw connects the rotating handle to the valve core, and a spring is arranged on the screw. Pulling the rotating handle upwards can separate the connecting valve body from the valve core, and quickly release the gas in the air chamber to achieve the function of rapid pressure relief. Release the rotating handle and it will reset under the action of the spring force.

[0020] 4. The connecting valve body and the connecting valve core distribute the airflow into the valve core through the connecting valve core. When the gas is full, the connecting valve core floats up and fits tightly with the baffle in the connecting valve body to play a sealing role. It will no longer be inflated to prevent excessive internal pressure and damage to the air chamber.

[0021] 5. The connecting valve body and the connecting pipe are provided with conical grooves correspondingly, and the connecting pipe and the conical grooves are provided with conical protrusions correspondingly. This structure ensures the sealing performance of the valve body and the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of;

[0025] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure in cross-section;

[0026] Figure 4 It is a schematic diagram of the valve core structure;

[0027] Figure 5 It is a schematic diagram of the structure of the connecting valve body and the connecting valve core;

[0028] Figure 6 It is a schematic diagram of the use status of the present invention.

[0029] In the figure: 1. valve body; 101. inner valve body; 102. outer valve body; 103. first vent hole; 104. screw mounting cavity; 2. valve core; 201. valve core body; 202. flange; 203. connecting pipe connecting end; 204. conical groove; 3. connecting valve body; 301. annular protrusion; 302. valve cover connecting end; 321. sealing ring groove; 303. rotating handle connecting end; 304. baffle; 305. connecting valve body bottom plate; 306. mounting cylinder; 307. second vent 4. connecting pipe; 401. conical protrusion; 5. valve cover; 6. rotating handle; 601. rotating handle body; 602. sleeve; 7. screw; 8. air distribution pipe; 9. connecting valve core; 10. sealing ring; 11. spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-6 As shown, a multifunctional valve with inflation, pressure relief, isolation and communication functions includes a valve body 1, a valve core 2 and a connecting valve body 3, the valve body 1 includes an inner valve body 101 and an outer valve body 102, a connecting pipe 4 is arranged below the inner valve body 101, the valve core 2 includes a valve core body 201, a flange 202 is arranged at one end of the valve core body 201 and a connecting pipe connecting end 203 is arranged at the other end, a valve cover 5 is arranged above the connecting valve body 3, a rotating handle 6 is arranged between the connecting valve body 3 and the valve core 2, the rotating handle 6 and the connecting valve body 3 are connected by threads, and the rotating handle 6 and the connecting valve body 3 are connected by a screw 7.

[0032] The connecting pipe 4 is provided with an air distribution pipe 8 at one end and a conical protrusion 401 at the other end. The connecting pipe connecting end 203 is provided with a conical groove 204 , and the conical groove 204 is provided correspondingly to the conical protrusion 401 .

[0033] Specifically, the tapered design of the tapered groove 204 and the tapered protrusion 401 greatly improves the sealing performance.

[0034] The inner valve body 101 is provided with a plurality of first vent holes 103 , a screw installation cavity 104 is provided between the inner valve body 101 and the outer valve body 102 , one end of the screw 7 is located between the screw installation cavity 104 , and the screw 7 is provided with a spring 11 .

[0035] Specifically, a spring 11 is provided, and the rotating handle 6 is pulled upward to separate the connecting valve body 3 from the valve core 2, and the gas in the air chamber is quickly released to achieve the function of rapid pressure relief. The rotating handle 6 is released and reset under the action of the spring elastic force. This structure can achieve the rapid release of the gas in the air chamber.

[0036] An annular protrusion 301 is arranged in the middle of the connecting valve body 3, and the annular protrusion 301 divides the connecting valve body 3 into a valve cover connecting end 302 and a rotating handle connecting end 303. The rotating handle 6 includes a rotating handle body 601 and a sleeve 602, and the sleeve 602 is threadedly connected to the rotating handle connecting end 302.

[0037] This structure retains the original pump filling structure through the connecting valve body 3, and can realize the rapid connection and separation of the connecting valve body 3 and the valve core 2 by rotating the handle 6, further realizing the function of rapid inflation and deflation.

[0038] The valve cover connecting end 302 is provided with a sealing ring groove 321 , and a sealing ring 10 is provided in the sealing groove 321 .

[0039] A baffle plate 304 and a communicating valve body bottom plate 305 are disposed inside the rotating handle connection end 303 , and a communicating valve core 9 is disposed between the baffle plate 304 and the communicating valve body bottom plate 305 .

[0040] The connecting valve core 9 is configured to be T-shaped, and a mounting tube 306 is configured on the bottom plate of the connecting valve body 3 . One end of the connecting valve core 9 is adjacent to the baffle 304 , and the other end is inserted into the mounting tube 306 .

[0041] In this structure, when the air pressure in the air chamber is too high, the T-shaped connecting valve core 9 floats up and seals the connecting valve body 3 to prevent the air pressure from being too high and damaging the valve body.

[0042] A second vent hole 307 is disposed at the connecting end of the communication valve body 3 .

[0043] Working principle:

[0044] The valve body 1 is bonded and installed on the buoy of the inflatable boat. When the valve is used with two air chambers, one end of the valve body air pipe 8 can be fastened with a screw plug. When the valve is used with three air chambers, the valve body air pipe 8 is connected to the two air chambers respectively, and the valve body is installed in the middle air chamber. The connecting valve body 3 is connected to the valve core 2 by threads. When the threads are tightened, the valve body is blocked by the conical groove 204 and the conical protrusion 401 to achieve an isolation state. The rotating handle 6 and the valve core 2 are connected by a screw 7, and there is a sealing ring on the end face.

[0045] A valve is installed in each air chamber, adjacent valves are connected by pipelines, and the end valves are tightened with threaded plugs.

[0046] When inflating, unscrew the valve cover 5, insert the inflation nozzle of the inflation pump into the connecting valve body 3, and inflate. When the inflation is satisfied, the connecting valve core 9 floats up, and the air pressure is used to support the baffle 304, seal the inflation valve body, and close the inflation valve.

[0047] When multiple air chambers need to be connected for inflation, turn the rotating handle 6, the valve core 2 opens, and the conical groove 204 of the gas valve core 2 enters the pipeline and enters the adjacent valve body. When the adjacent valve bodies are connected, the adjacent air chambers can be inflated. After inflation, tighten the rotating handle 6 clockwise so that the conical groove 204 of the valve core 2 is completely sealed with the conical protrusion 401 of the valve body 1, and the entire valve body will isolate the two air chambers and prevent them from ventilating each other. When deflation is required, rotate the handle 6 counterclockwise to release the gas in this air chamber. When the pressure in the air chamber is too high, the gas will push open the rotating handle 6 to release the pressure and deflate. When the pressure in the air chamber is low, the rotating handle 6 will be tightened by the spring 11, and the sealing ring between the rotating handle 6 and the connecting valve body 3 will be used to prevent the gas in the air chamber from leaking.

[0048] The above description is only a preferred embodiment of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A multifunctional valve with inflation, pressure relief, isolation and communication functions, comprising a valve body, a valve core and a connecting valve body, characterized in that: The valve body comprises an inner valve body and an outer valve body, a connecting pipe is arranged below the inner valve body, the valve core comprises a valve core body, a flange is arranged at one end of the valve core body, and a connecting pipe connecting end is arranged at the other end, a valve cover is arranged above the connecting valve body, a rotating handle is arranged between the connecting valve body and the valve core, the rotating handle is connected to the connecting valve body through a threaded connection, and the rotating handle is connected to the connecting valve body through a screw; The connecting pipe is provided with a gas distribution pipe at one end and a conical protrusion at the other end, and a conical groove is provided at the connecting end of the connecting pipe, and the conical groove is provided corresponding to the conical protrusion; The inner valve body is provided with a plurality of first vent holes, a screw mounting cavity is provided between the inner valve body and the outer valve body, one end of the screw is located between the screw mounting cavities, and the screw jacket is provided with a spring; An annular protrusion is arranged in the middle of the connecting valve body, and the annular protrusion divides the connecting valve body into a valve cover connecting end and a rotating handle connecting end; A baffle plate and a bottom plate of a connecting valve body are arranged inside the connecting end of the rotating handle, and a connecting valve core is arranged between the baffle plate and the bottom plate of the connecting valve body; A second vent hole is provided at the connecting end of the communication valve body; The connecting valve core is arranged in a T shape, a mounting tube is arranged on the bottom plate of the connecting valve body, one end of the connecting valve core is adjacent to the baffle plate, and the other end is inserted into the mounting tube.

2. A multifunctional valve with inflation, pressure relief, isolation and communication functions as claimed in claim 1, characterized in that: The rotating handle comprises a rotating handle body and a sleeve, and the sleeve is threadedly connected to the rotating handle connecting end.

3. A multifunctional valve with inflation, pressure relief, isolation and communication functions as claimed in claim 1, characterized in that: A sealing ring groove is arranged at the connecting end of the valve cover, and a sealing ring is arranged in the sealing groove.

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