Inflatable sealing half-ball valve

Abstract

The utility model discloses an inflatable sealing semi-ball valve, and relates to the field of semi-ball valves. The inflatable sealing half-ball valve comprises a valve body, a half-ball valve element is rotationally arranged in the valve body, a fixing seat is fixedly installed on the side face of the valve body, a first communicating hole which is through left and right is formed in the fixing seat, and a second communicating hole is formed in the other side of the valve body; an inflatable positioning assembly is connected between the interior of the fixing base and the valve body, and a transmission assembly is installed at the top of the hemispherical valve element. According to the inflatable sealing semi-ball valve, air is injected into the air inlet connecting port through an external air pump, then air flow enters an expansion cavity formed between the fixing ring and the rubber ring through the air inlet channel and the air inlet hole, under the continuous pressurization of the internal air flow, one side of the rubber ring is fixed through the fixing ring, and therefore the sealing effect is achieved. And the other side of the rubber ring expands outwards and tightly abuts against the outer side of the semi-ball valve element, so that the position of the semi-ball valve element is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of hemispherical valves, in particular to an inflatable sealed hemispherical valve. Background Art

[0002] Hemispherical valves are widely used in the fields of petroleum, chemical industry, natural gas, acid and alkali liquids, etc. They are mainly used to control the flow direction and flow rate of liquids in pipelines. Their main function is to control the flow rate in pipelines to achieve the effect of controlling and regulating fluid pressure. In addition, hemispherical valves can also effectively control parameters such as liquid level, temperature, and flow rate in pipelines.

[0003] During the opening and closing process of the existing semi-ball valve, it is necessary to rotate it to different angles for fixation. At the same time, in order to avoid leakage during the closing process, the ball valve core and the inside of the valve body need to be tightly squeezed, which makes the ball valve have a large friction force every time it is opened and closed, and it is easy for the contact part between the ball valve core and the inside of the valve body to cause wear. Therefore, the present application proposes an inflatable sealed semi-ball valve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an inflatable sealed hemispherical valve, which solves the problem that the existing hemispherical valve has large friction each time it is opened and closed, and the contact part between the ball valve core and the inside of the valve body is easily worn.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an inflatable sealed hemispherical valve, comprising a valve body, a hemispherical valve core is rotatably arranged inside the valve body, a fixing seat is fixedly installed on the side of the valve body, a first communicating hole is opened inside the fixing seat and is passed through from left to right, a second communicating hole is opened on the other side of the valve body, and the first communicating hole and the second communicating hole are both connected to the inside of the valve body;

[0006] An inflatable positioning component is connected between the interior of the fixing seat and the valve body, and a transmission component is installed on the top of the hemispherical valve core.

[0007] Preferably, a rotating shaft is fixedly mounted on the bottom of the valve body, and the bottom of the hemispherical valve core is rotatably connected to the top of the rotating shaft.

[0008] Preferably, the inflatable positioning assembly includes an air inlet channel and an air inlet hole, both of which are opened inside the fixed seat, and an air inlet connection port is opened at the top of the air inlet channel, and an annular groove connected with the interior of the valve body is opened on the side of the fixed seat, the air inlet hole is connected with the interior of the annular groove, and a rubber ring is embedded on the inner wall of the annular groove.

[0009] Preferably, a fixing ring is fixedly connected to the inner wall of the annular groove, and the fixing ring is fixedly connected to the inner wall of the rubber ring, and an expansion cavity is formed between the fixing ring and the rubber ring.

[0010] Preferably, an air inlet cavity is embedded in the interior of the fixing ring, and the air inlet hole is connected with the expansion cavity through the air inlet cavity.

[0011] Preferably, the transmission assembly includes a sealing seat and a fixed frame, the sealing seat is arranged at the bottom of the fixed frame, and the sealing seat and the fixed frame are fixedly installed on the top of the valve body by bolts, the sealing seat is rotatably connected to the inside of the valve stem, and the bottom end of the valve stem extends toward the inside of the valve body and is fixedly installed on the top of the hemispherical valve core.

[0012] Preferably, the top end of the valve stem passes through the fixing frame and is fixedly connected with a connecting end.

[0013] The utility model discloses an inflatable sealed semi-ball valve, which has the following beneficial effects: during the use of the inflatable sealed semi-ball valve, when the semi-ball valve needs to be opened, the inflatable positioning component is opened, and air is injected into the air inlet connecting port through an external air pump, so that the air flow enters the expansion cavity formed between the fixed ring and the rubber ring through the air inlet channel and the air inlet hole. Under the continuous pressure of the internal air flow, the fixed ring fixes one side of the rubber ring, so that the other side of the rubber ring expands outward and tightly abuts against the outer side of the semi-ball valve core, thereby fixing the position of the semi-ball valve core and achieving the effect of sealing, avoiding wear on the semi-ball valve core, increasing its service life, and facilitating its automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural sectional view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the inflatable positioning component of the utility model.

[0018] In the figure: 1. valve body; 101. hemispherical valve core; 102. rotating shaft; 2. fixed seat; 201. first connecting hole; 202. second connecting hole; 3. inflatable positioning assembly; 301. air inlet channel; 302. air inlet hole; 303. air inlet connection port; 304. rubber ring; 305. expansion cavity; 306. fixing ring; 307. air inlet cavity; 4. transmission assembly; 401. sealing seat; 402. fixing frame; 403. valve stem; 404. connecting end. DETAILED DESCRIPTION

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The utility model embodiment discloses an inflatable sealed hemispherical valve. Figure 1-3 As shown, it comprises a valve body 1, a hemispherical valve core 101 is rotatably arranged inside the valve body 1, a fixing seat 2 is fixedly installed on the side of the valve body 1, a first communicating hole 201 which passes through the left and right sides is opened inside the fixing seat 2, a second communicating hole 202 is opened on the other side of the valve body 1, and both the first communicating hole 201 and the second communicating hole 202 are connected to the inside of the valve body 1;

[0021] An inflatable positioning assembly 3 is connected between the interior of the fixing seat 2 and the valve body 1 , and a transmission assembly 4 is installed on the top of the hemispherical valve core 101 .

[0022] During use, when the hemispherical valve needs to be opened, the inflatable positioning assembly 3 is opened, and air is injected into the air inlet connection port 303 through an external air pump, so that the airflow enters the expansion cavity 305 formed between the fixing ring 306 and the rubber ring 304 through the air inlet channel 301 and the air inlet hole 302. Under the continuous pressure of the internal airflow, the fixing ring 306 fixes one side of the rubber ring 304, so that the other side of the rubber ring 304 expands outward and tightly contacts the outer side of the hemispherical valve core 101, thereby fixing the position of the hemispherical valve core 101 and achieving a sealing effect, avoiding wear on the hemispherical valve core 101, increasing its service life, and facilitating its automated control.

[0023] Furthermore, a rotating shaft 102 is fixedly mounted on the bottom of the valve body 1 , and the bottom of the hemispherical valve core 101 is rotatably connected to the top of the rotating shaft 102 .

[0024] By providing the rotating shaft 102 , the hemispherical valve core 101 can rotate more stably inside the valve body 1 .

[0025] Specifically disclosed, the inflatable positioning component 3 includes an air inlet channel 301 and an air inlet hole 302, both of which are opened inside the fixed seat 2, and an air inlet connection port 303 is opened at the top of the air inlet channel 301, and an annular groove connected with the interior of the valve body 1 is opened on the side of the fixed seat 2, the air inlet hole 302 is connected with the interior of the annular groove, and a rubber ring 304 is embedded on the inner wall of the annular groove.

[0026] Furthermore, a fixing ring 306 is fixedly connected to the inner wall of the annular groove, and the fixing ring 306 is fixedly connected to the inner wall of the rubber ring 304 , and an expansion cavity 305 is formed between the fixing ring 306 and the rubber ring 304 .

[0027] Furthermore, an air inlet cavity 307 is embedded in the interior of the fixing ring 306 , and the air inlet hole 302 is connected to the expansion cavity 305 through the air inlet cavity 307 .

[0028] An external air pump is used to inject air into the air inlet connection port 303, so that the airflow enters the expansion cavity 305 formed between the fixing ring 306 and the rubber ring 304 through the air inlet channel 301 and the air inlet hole 302. Under the continuous pressure of the internal airflow, the fixing ring 306 fixes one side of the rubber ring 304, so that the other side of the rubber ring 304 expands outward and tightly contacts the outer side of the hemispherical valve core 101, thereby fixing the position of the hemispherical valve core 101 and achieving a sealing effect.

[0029] Specifically disclosed, the transmission assembly 4 includes a sealing seat 401 and a fixed frame 402, the sealing seat 401 is arranged at the bottom of the fixed frame 402, and the sealing seat 401 and the fixed frame 402 are fixedly installed on the top of the valve body 1 by bolts, and the internal rotation of the sealing seat 401 is connected to the valve stem 403, and the bottom end of the valve stem 403 extends toward the inside of the valve body 1 and is fixedly installed on the top of the hemispherical valve core 101.

[0030] When the valve stem 403 rotates, the hemispherical valve core 101 at the bottom can be driven to rotate accordingly.

[0031] Furthermore, the top end of the valve stem 403 passes through the fixing frame 402 and is fixedly connected to the connecting end 404 .

[0032] During use, the connecting end 404 is connected to an external driving device, and the valve stem 403 can be driven to rotate by driving the connecting end 404 .

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An inflatable sealed hemispherical valve, comprising a valve body (1), characterized in that: A hemispherical valve core (101) is rotatably arranged inside the valve body (1), a fixing seat (2) is fixedly installed on the side of the valve body (1), a first communicating hole (201) which passes through the fixing seat (2) is provided inside, and a second communicating hole (202) is provided on the other side of the valve body (1), and both the first communicating hole (201) and the second communicating hole (202) are connected to the inside of the valve body (1); An inflatable positioning assembly (3) is connected between the interior of the fixing seat (2) and the valve body (1), and a transmission assembly (4) is installed on the top of the hemispherical valve core (101).

2. The inflatable sealed hemispherical valve according to claim 1, characterized in that: A rotating shaft (102) is fixedly mounted on the bottom of the valve body (1), and the bottom of the hemispherical valve core (101) is rotatably connected to the top of the rotating shaft (102).

3. The inflatable sealed hemispherical valve according to claim 1, characterized in that: The inflatable positioning assembly (3) comprises an air inlet channel (301) and an air inlet hole (302), both of which are arranged inside the fixed seat (2), and an air inlet connection port (303) is arranged at the top of the air inlet channel (301), an annular groove connected to the inside of the valve body (1) is arranged on the side of the fixed seat (2), the air inlet hole (302) is connected to the inside of the annular groove, and a rubber ring (304) is embedded on the inner wall of the annular groove.

4. The inflatable sealed hemispherical valve according to claim 3, characterized in that: A fixing ring (306) is fixedly connected to the inner wall of the annular groove, and the fixing ring (306) is fixedly connected to the inner wall of the rubber ring (304), and an expansion cavity (305) is formed between the fixing ring (306) and the rubber ring (304).

5. The inflatable sealed hemispherical valve according to claim 4, characterized in that: An air intake cavity (307) is embedded inside the fixing ring (306), and the air intake hole (302) is connected to the expansion cavity (305) through the air intake cavity (307).

6. The inflatable sealed hemispherical valve according to claim 1, characterized in that: The transmission assembly (4) comprises a sealing seat (401) and a fixing frame (402), wherein the sealing seat (401) is arranged at the bottom of the fixing frame (402), and the sealing seat (401) and the fixing frame (402) are fixedly mounted on the top of the valve body (1) by means of bolts, and the sealing seat (401) is rotatably connected to the inside of the valve body (1) with a valve stem (403), and the bottom end of the valve stem (403) extends toward the inside of the valve body (1) and is fixedly mounted on the top of the hemispherical valve core (101).

7. The inflatable sealed hemispherical valve according to claim 6, characterized in that: The top end of the valve stem (403) passes through the fixing frame (402) and is fixedly connected to a connecting end (404).

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