A gas cylinder type butterfly valve

Abstract

This utility model belongs to the field of butterfly valves, specifically relating to a cylinder-type butterfly valve. It mainly solves the technical problem of existing butterfly valves being large in size and having limited application range. The upper valve body of this butterfly valve includes an upper valve body flange and an upper valve body tube; the lower valve body includes a lower valve body flange, a lower valve body mounting component, and a lower valve body tube; the upper and lower valve body tubes are coaxially connected, forming a valve body space within them; the upper and lower valve body flanges are respectively connected to the upper and lower valve body tubes at opposite ends, and are correspondingly connected; the valve core is disposed within the valve body space, with its two ends passing through the connection points of the upper and lower valve body tubes; the cylinder head cap is hinged to one end of a connecting rod, and the other end of the connecting rod is fixedly fitted onto the valve core; one end of the lower valve body mounting component is mounted on the side wall of the lower valve body tube; the cylinder tailstock is hinged to the lower valve body mounting component. The butterfly valve of this utility model has a compact structure and small size.

Description

Technical Field

[0001] This utility model relates to a butterfly valve, specifically a cylinder-type butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve whose closing element (valve disc or rotating vane) is a disk that rotates around a valve shaft to open and close. It is mainly used for shut-off and throttling in pipelines. The butterfly valve's opening and closing element is a disc-shaped rotating vane that rotates around its own axis within the valve body, thereby achieving the purpose of opening, closing, or regulation. When used for material packaging, butterfly valves function as switches, cutting off material flow or allowing material to pass through.

[0003] Chinese patent CN202040342U discloses a butterfly valve, including a valve body, a rotating component, and a valve shaft. The valve shaft is disposed within the valve body, and the rotating component rotates around the valve shaft within the valve body. The valve body and the valve shaft are connected by screws or threads. However, this butterfly valve has an insufficiently compact structure and a large overall size, making it unsuitable for use in confined spaces, thus limiting its application range. Utility Model Content

[0004] To address the technical problem that existing butterfly valves are not compact enough, have a large overall size, and cannot be used in confined spaces, thus limiting their application range, this utility model provides a cylinder-type butterfly valve.

[0005] To achieve the above objectives and complete the above-mentioned utility model concept, the present utility model adopts the following technical solution: A type of cylinder butterfly valve, which is special in that: It includes an upper valve body, a lower valve body, a valve core, a cylinder, and a connecting rod; The upper valve body includes an upper valve body flange and an upper valve body pipe; the lower valve body includes a lower valve body flange, a lower valve body mounting component, and a lower valve body pipe. The upper valve body pipe and the lower valve body pipe are coaxially connected and form a valve body space inside them; the upper valve body flange and the lower valve body flange are respectively connected to the upper valve body pipe and the lower valve body pipe at opposite ends, and the two are connected accordingly. The valve core is located within the valve body space, with its two ends passing through and installed at the connection between the upper valve body tube and the lower valve body tube; The cylinder head cap is hinged to one end of the connecting rod, and the other end of the connecting rod is fixedly fitted onto one end of the valve core; One end of the lower valve body mounting component is mounted on the side wall of the lower valve body tube; the tailstock of the cylinder is hinged to the mounting shaft at the other end of the lower valve body mounting component.

[0006] Furthermore, the circumferential sidewall of the upper valve body tube is provided with two upper valve body connecting bases, and the circumferential sidewall of the lower valve body tube is provided with two lower valve body connecting bases that respectively cooperate with the two upper valve body connecting bases. Two upper valve body connecting bases and two lower valve body connecting bases are fitted together to form two bases; Two mounting seats are installed on the two bases respectively, and the two ends of the valve core pass through the two mounting seats and rotate with them.

[0007] Furthermore, retaining rings are provided at both ends of the valve core, and the outer end faces of the two retaining rings abut against the inner end faces of the two mounting seats respectively.

[0008] Furthermore, the upper valve body also includes an upper valve body mounting component; One end of the upper valve body mounting component is installed on the circumferential wall of the upper valve body pipe, and the other end is installed on the other side wall of the lower valve body mounting component.

[0009] Furthermore, both the upper and lower valve body mounting components are square tubes, and the other end of the upper valve body mounting component is connected to the side wall of the lower valve body mounting component by screws.

[0010] Furthermore, the upper valve body and the lower valve body are connected by multiple connecting studs.

[0011] The beneficial effects of this utility model are: This invention saves space by installing the lower valve body mounting component on the side wall of the lower valve body flange and then hinged the cylinder tailstock to the lower valve body mounting component, thereby making the butterfly valve structure more compact and enabling the butterfly valve to be used in relatively confined spaces, thus expanding its application range. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 1 CC section view; Figure 4 This is a schematic diagram of the lower valve body in an embodiment of this utility model; Figure 5 This is a schematic diagram of the upper valve body in an embodiment of this utility model; Figure 6 This is a schematic diagram of the valve core in an embodiment of this utility model.

[0013] The attached figures are labeled as follows: 1-Upper valve body, 11-Upper valve body flange, 12-Upper valve body mounting component, 13-Upper valve body pipe, 14-Upper valve body connecting base; 2-Lower valve body, 21-Lower valve body flange, 22-Lower valve body mounting component, 23-Lower valve body pipe, 24-Lower valve body connecting base, 25-Mounting shaft; 3-Valve core, 31-Retaining ring; 4-Cylinder, 5-Connecting rod, 6-Mounting base, 7-Connecting stud. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] See Figure 1 and Figure 2 The present invention provides a cylinder-type butterfly valve, which mainly includes an upper valve body 1, a lower valve body 2, a valve core 3, a cylinder 4, and a connecting rod 5.

[0016] Among them, see Figure 5 The upper valve body 1 specifically includes an upper valve body flange 11, an upper valve body mounting component 12, and an upper valve body pipe 13. See also... Figure 4 The lower valve body 2 specifically includes a lower valve body flange 21, a lower valve body mounting component 22, and a lower valve body pipe 23.

[0017] The upper valve body tube 13 and the lower valve body tube 23 are coaxially connected at one end, forming a valve body space inside them; the upper valve body flange 11 and the lower valve body flange 21 are respectively connected to the upper valve body tube 13 and the lower valve body tube 23 at one end away from each other, and the upper valve body flange 11 and the lower valve body flange 21 are connected by a plurality of connecting studs 7. In this embodiment, four connecting studs 7 are used as an example for illustration. The four connecting studs 7 are evenly distributed along the circumferential direction.

[0018] The valve core 3 is disposed within the valve body space, and its two ends pass through the connection points of the upper valve body tube 13 and the lower valve body tube 23, respectively. For the specific structure of the valve core 3, please refer to Chinese Patent CN202040342U. In this embodiment, its structure will not be described in detail.

[0019] See Figure 4 and Figure 5 Specifically, two upper valve body connecting bases 14 are provided on the circumferential side wall of the upper valve body tube 13. Similarly, two lower valve body connecting bases 24 are provided on the circumferential side wall of the lower valve body tube 23 to cooperate with the two upper valve body connecting bases 14. The two upper valve body connecting bases 14 and the two lower valve body connecting bases 24 cooperate with each other when the upper valve body tube 13 and the lower valve body tube 23 abut, forming two bases. The inner diameter of the two bases is larger than the end diameter of the valve core 3.

[0020] See Figure 1 and Figure 3Two mounting seats 6 are installed on the two bases respectively. The two ends of the valve core 3 pass through the two mounting seats 6 respectively and are rotatably engaged with them. See Figure 6 A retaining ring 31 is provided at both ends of the valve core 3. The outer end face of the two retaining rings 31 abuts against the inner end face of the two mounting seats 6 respectively, thereby limiting the valve core 3.

[0021] See Figure 4 and Figure 5 Both the upper valve body mounting component 12 and the lower valve body mounting component 22 are long, straight square tubes. One end of the upper valve body mounting component 12 is mounted on the circumferential wall of the upper valve body tube 13, and the other end is mounted on the upper side wall of the lower valve body mounting component 22.

[0022] The other end of the upper valve body mounting part 12 is provided with a through hole, and the side wall of the lower valve body mounting part 22 is provided with a boss corresponding to the through hole. The boss is provided with a threaded hole. The other end of the upper valve body mounting part 12 is installed on the upper side wall of the lower valve body mounting part 22 by passing a screw through the through hole and connecting it with the threaded hole.

[0023] The connecting rod 5 is specifically a crank structure. The head cap of the cylinder 4 is hinged to one end of the connecting rod 5, and the other end of the connecting rod 5 is fixedly fitted to one end of the valve core 3. One end of the lower valve body mounting part 22 is installed on the circumferential wall of the lower valve body tube 23, and the other end is provided with a mounting shaft 25. The tailstock of the cylinder 4 is hinged to the mounting shaft 25.

[0024] In use, when the cylinder rod of cylinder 4 retracts, the valve plate of valve core 3 is in a horizontal position (within). Figure 1 With the horizontal direction of the paper as a reference, the butterfly valve is closed. When the cylinder rod of cylinder 4 extends, the valve plate of valve core 3 is in a vertical position (with the horizontal direction of the paper as a reference). Figure 1 (Referring to the vertical direction of the paper), the butterfly valve is open.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A cylinder-type butterfly valve, characterized in that: It includes an upper valve body (1), a lower valve body (2), a valve core (3), a cylinder (4), and a connecting rod (5); The upper valve body (1) includes an upper valve body flange (11) and an upper valve body pipe (13); the lower valve body (2) includes a lower valve body flange (21), a lower valve body mounting component (22), and a lower valve body pipe (23); The upper valve body tube (13) and the lower valve body tube (23) are coaxially connected and form a valve body space inside them; the upper valve body flange (11) and the lower valve body flange (21) are respectively connected to the upper valve body tube (13) and the lower valve body tube (23) at opposite ends, and the two are correspondingly connected. The valve core (3) is set in the valve body space, and its two ends pass through the connection between the upper valve body tube (13) and the lower valve body tube (23); The head cap of the cylinder (4) is hinged to one end of the connecting rod (5), and the other end of the connecting rod (5) is fixedly fitted onto one end of the valve core (3); One end of the lower valve body mounting component (22) is mounted on the side wall of the lower valve body tube (23); the tailstock of the cylinder (4) is hinged to the mounting shaft (25) at the other end of the lower valve body mounting component (22).

2. The cylinder-type butterfly valve according to claim 1, characterized in that: The upper valve body tube (13) has two upper valve body connecting bases (14) on its circumferential wall, and the lower valve body tube (23) has two lower valve body connecting bases (24) on its circumferential wall that respectively cooperate with the two upper valve body connecting bases (14). The two upper valve body connecting bases (14) and the two lower valve body connecting bases (24) are correspondingly engaged to form two bases; Mounting seats (6) are installed on the two bases respectively, and the two ends of the valve core (3) pass through the two mounting seats (6) respectively and rotate with them.

3. A cylinder-type butterfly valve according to claim 2, characterized in that: The valve core (3) is provided with retaining rings (31) at both ends, and the outer end faces of the two retaining rings (31) abut against the inner end faces of the two mounting seats (6).

4. A cylinder-type butterfly valve according to any one of claims 1-3, characterized in that: The upper valve body (1) also includes an upper valve body mounting component (12); One end of the upper valve body mounting component (12) is mounted on the circumferential wall of the upper valve body tube (13), and the other end is mounted on the other side wall of the lower valve body mounting component (22).

5. A cylinder-type butterfly valve according to claim 4, characterized in that: Both the upper valve body mounting component (12) and the lower valve body mounting component (22) are square tubes, and the other end of the upper valve body mounting component (12) is connected to the side wall of the lower valve body mounting component (22) by screws.

6. A cylinder-type butterfly valve according to claim 1, characterized in that: The upper valve body (1) and the lower valve body (2) are connected by multiple connecting studs (7).

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