Straight-through type high-flow stop valve

Abstract

The utility model relates to the technical field of stop valves, and discloses a straight-through type large-flow stop valve which comprises a valve body and a valve rod, a hand wheel is fixedly installed at the top end of the valve rod, a connector is arranged on the right side of the valve body, a water pipe is fixedly connected to the right side of the connector, and a connecting mechanism is arranged on the connector. According to the straight-through type large-flow stop valve, the connecting head is positioned through the arranged limiting rod, the valve body and the connecting head are installed and fixed through mutual buckling of the buckling plate and the buckling point, on the contrary, the buckling plate is pressed to rotate around the hinge point and compress the spring, so that the buckling plate is separated from the buckling point, and then the connecting head can be separated from the valve body by pulling the connecting head; the valve body and the water pipe are convenient to disassemble and assemble, the installation efficiency is improved, and the sealing performance of connection between the valve body and the connector is improved through the arranged sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a straight-through large-flow stop valve. Background Art

[0002] Straight-through stop valve relies on the valve stem pressure to make the valve disc sealing surface and the valve seat sealing surface tightly combined to prevent the flow of medium. It has the characteristics of small friction between the sealing surfaces during opening and closing, wear resistance, small opening height, and good manufacturing process performance. It is the most widely used valve in the industrial sector.

[0003] However, the existing straight-through stop valve is connected and fixed to the pipeline by a large number of bolts, which is time-consuming and laborious during disassembly and assembly, thereby reducing work efficiency. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a straight-through large flow stop valve. Its advantages are that the connector is positioned by a limit rod, and the valve body and the connector are installed and fixed by the buckle plate and the buckle point. Conversely, the buckle plate is pressed to rotate around the hinge point and compress the spring, so that the buckle plate is separated from the buckle point, and then the connector is pulled to separate it from the valve body, which facilitates the disassembly and assembly between the valve body and the water pipe, improves the installation efficiency, and improves the sealing performance of the connection between the valve body and the connector by the provided sealing ring.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight-through large-flow stop valve, comprising a valve body and a valve stem, a hand wheel is fixedly installed on the top of the valve stem, a connector is arranged on the right side of the valve body, a water pipe is fixedly connected to the right side of the connector, a connecting mechanism is arranged on the connector, two limit rods are relatively fixedly connected to the left side of the connector, and the left ends of the two limit rods are both plugged into the valve body;

[0006] The connecting mechanism includes: a buckle plate, a buckle point, a spring, and a pressure groove. The buckle plate is hinged on the outer wall of the connecting head, the buckle point is fixedly connected to the outer wall of the valve body, and the buckle plate is buckled with the buckle point. The outer wall of the connecting head is provided with an installation groove, the spring is fixedly connected to the inner wall of the installation groove, and the front end of the spring is fixedly connected to the back side of the buckle plate, and the front side of the buckle plate is provided with a pressure groove. The connecting head is positioned by a limiting rod, and the buckle plate and the buckle point are buckled with each other to achieve the installation and fixation of the valve body and the connecting head. Conversely, the buckle plate is pressed to rotate it around the hinge point and compress the spring, so that the buckle plate is disengaged from the buckle point, and then the connecting head can be pulled to separate it from the valve body, which facilitates the disassembly and assembly between the valve body and the water pipe and improves the installation efficiency.

[0007] Preferably, two limit grooves are relatively opened on the right side of the valve body, and the left ends of the two limit rods are respectively inserted into the two limit grooves. The connector is positioned by the limit rods and the limit grooves to avoid shaking of the connector and improve the connection stability of the connector.

[0008] Preferably, an annular groove is provided on the left side of the connector, and a sealing ring is provided in the annular groove, so that the sealing performance of the connection between the valve body and the connector is improved by the provided sealing ring.

[0009] Preferably, a limiting mechanism is provided on the valve body, and the limiting mechanism includes: a bracket, a screw, the bracket is fixedly connected to the top of the valve body, the bracket is arranged in an inverted "U" shape, a through hole is opened on the top of the bracket, the outer wall of the valve stem is slidably connected to the bracket, the screw is threadedly connected to the top of the handwheel, and the bottom end of the screw passes through the handwheel and is inserted into the bracket, and the screw is rotated so that its bottom end is inserted into the socket, so that the screw limits the handwheel to prevent the handwheel from rotating by itself, thereby improving the stability of the handwheel and thereby improving the stability of the water flow rate.

[0010] Preferably, a plug hole is provided on the top of the bracket, and the bottom end of the screw rod is inserted into the plug hole.

[0011] Preferably, there are two groups of the connecting mechanisms, which are relatively arranged on the outer wall of the connecting head, and the left and right sides of the valve body are relatively arranged with connecting heads, water pipes, connecting mechanisms, limit rods, limit grooves, and sealing rings.

[0012] Compared with the prior art, the utility model provides a straight-through large flow stop valve, which has the following beneficial effects:

[0013] 1. The straight-through large-flow stop valve positions the connector by means of a limit rod, and the valve body and the connector are installed and fixed by the buckle plate and the buckle point being buckled together. Conversely, the buckle plate is pressed to rotate around the hinge point and compress the spring, so that the buckle plate is disengaged from the buckle point, and then the connector is pulled to separate it from the valve body, which facilitates the disassembly and assembly between the valve body and the water pipe, improves the installation efficiency, and improves the sealing performance of the connection between the valve body and the connector by means of the provided sealing ring.

[0014] 2. The straight-through large-flow stop valve rotates the screw to insert its bottom end into the socket, so that the screw limits the hand wheel to prevent the hand wheel from rotating by itself, thereby improving the stability of the hand wheel and further improving the stability of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a left side view of the connector in the utility model;

[0018] Figure 3 This is an appearance diagram of the valve body in the utility model.

[0019] In the figure: 1. valve body; 2. valve stem; 3. hand wheel; 4. connector; 5. water pipe; 6. connecting mechanism; 61. buckle plate; 62. buckle point; 63. spring; 64. pressure groove; 7. limit mechanism; 71. bracket; 72. screw; 8. limit rod; 9. limit groove; 10. sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1

[0022] like Figure 1-3As shown, the utility model provides a straight-through large-flow stop valve, including a valve body 1 and a valve stem 2, a hand wheel 3 is fixedly installed on the top of the valve stem 2, a connector 4 is arranged on the right side of the valve body 1, a water pipe 5 is fixedly connected to the right side of the connector 4, a connecting mechanism 6 is arranged on the connector 4, two limiting rods 8 are relatively fixedly connected to the left side of the connector 4, and the left ends of the two limiting rods 8 are both plugged into the valve body 1, two limiting grooves 9 are relatively opened on the right side of the valve body 1, and the left ends of the two limiting rods 8 are respectively inserted into the two limiting grooves 9, the connector 4 is positioned by the limiting rods 8 and the limiting grooves 9 to avoid shaking of the connector 4 and improve the connection stability of the connector 4; the connecting mechanism 6 includes: a buckle plate 61, a buckle point 62, a spring 63, and a pressure groove 64, the buckle plate 61 is hinged on the outer wall of the connector 4, the buckle point 62 is fixedly connected to the outer wall of the valve body 1, and the buckle plate 61 is buckled with the buckle point 62, the outer wall of the connector 4 is opened with an installation groove, and the spring 63 is fixedly connected to The inner wall of the installation groove, and the front end of the spring 63 is fixedly connected to the back side of the buckle plate 61, and a pressing groove 64 is provided on the front side of the buckle plate 61. The connector 4 is positioned by the limit rod 8, and the buckle plate 61 and the buckle point 62 are buckled together to realize the installation and fixation of the valve body 1 and the connector 4. Conversely, by pressing the buckle plate 61 to rotate it around the hinge point and compressing the spring 63, the buckle plate 61 is separated from the buckle point 62, and then the connector 4 can be pulled to separate it from the valve body 1, which is convenient for the disassembly and assembly between the valve body 1 and the water pipe 5, and the installation efficiency is improved. An annular groove is provided on the left side of the connector 4, and a sealing ring 10 is provided in the annular groove. The sealing of the connection between the valve body 1 and the connector 4 is improved by the provided sealing ring 10. There are two groups of connecting mechanisms 6, and the two groups of connecting mechanisms 6 are relatively arranged on the outer wall of the connecting head 4. The left and right sides of the valve body 1 are relatively arranged with the connecting head 4, the water pipe 5, the connecting mechanism 6, the limit rod 8, the limit groove 9, and the sealing ring 10.

[0023] In this embodiment, the connector 4 is positioned by a limiting rod 8, and the valve body 1 and the connector 4 are installed and fixed by the engagement of the buckle plate 61 and the buckle point 62. Conversely, the buckle plate 61 is pressed to rotate around the hinge point and compress the spring 63, so that the buckle plate 61 is disengaged from the buckle point 62, and then the connector 4 is pulled to separate it from the valve body 1, thereby facilitating the disassembly and assembly between the valve body 1 and the water pipe 5 and improving the installation efficiency. The sealing ring 10 is provided to improve the sealing of the connection between the valve body 1 and the connector 4.

[0024] Example 2

[0025] like Figure 1-3As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a limiting mechanism 7 is provided on the valve body 1, and the limiting mechanism 7 includes: a bracket 71 and a screw 72. The bracket 71 is fixedly connected to the top of the valve body 1, and the bracket 71 is arranged in an inverted "U" shape. A through hole is provided at the top of the bracket 71, and the outer wall of the valve stem 2 is slidably connected to the bracket 71. The screw 72 is threadedly connected to the top of the handwheel 3, and the bottom end of the screw 72 passes through the handwheel 3 and is inserted into the bracket 71. A socket is provided at the top of the bracket 71, and the bottom end of the screw 72 is inserted into the socket. By rotating the screw 72 so that its bottom end is inserted into the socket, the screw 72 limits the handwheel 3, preventing the handwheel 3 from rotating by itself, improving the stability of the handwheel 3, and thereby improving the stability of the water flow rate.

[0026] In this embodiment, the screw rod 72 is rotated to insert its bottom end into the insertion hole, so that the screw rod 72 limits the hand wheel 3 to prevent the hand wheel 3 from rotating on its own, thereby improving the stability of the hand wheel 3 and further improving the stability of the water flow.

[0027] The following is a detailed description of the working principle of the straight-through large flow stop valve.

[0028] like Figure 1-3 As shown, when in use, the connector 4 is positioned by the provided limiting rod 8, and the buckle plate 61 and the buckle point 62 are buckled together to achieve the installation and fixation of the valve body 1 and the connector 4. Conversely, the buckle plate 61 is pressed to rotate around the hinge point and compress the spring 63, so that the buckle plate 61 is disengaged from the buckle point 62, and then the connector 4 is pulled to separate it from the valve body 1, which facilitates the disassembly and assembly between the valve body 1 and the water pipe 5 and improves the installation efficiency. The provided sealing ring 10 improves the sealing of the connection between the valve body 1 and the connector 4, and the screw 72 is rotated to make its bottom end inserted into the socket, so that the screw 72 limits the hand wheel 3 to prevent the hand wheel 3 from rotating by itself, thereby improving the stability of the hand wheel 3 and thereby improving the stability of the water flow rate.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straight-through large flow stop valve, comprising a valve body (1) and a valve stem (2), characterized in that: A hand wheel (3) is fixedly mounted on the top of the valve stem (2); a connector (4) is arranged on the right side of the valve body (1); a water pipe (5) is fixedly connected to the right side of the connector (4); a connecting mechanism (6) is arranged on the connector (4); two limit rods (8) are relatively fixedly connected to the left side of the connector (4); and the left ends of the two limit rods (8) are both plugged into the valve body (1); the connecting mechanism (6) comprises: a buckle plate (61), a buckle point (62), A spring (63) and a pressure groove (64), the buckle plate (61) is hinged on the outer wall of the connecting head (4), the buckle point (62) is fixedly connected to the outer wall of the valve body (1), and the buckle plate (61) and the buckle point (62) are buckled together, the outer wall of the connecting head (4) is provided with a mounting groove, the spring (63) is fixedly connected to the inner wall of the mounting groove, and the front end of the spring (63) is fixedly connected to the back side of the buckle plate (61), and the front side of the buckle plate (61) is provided with a pressure groove (64).

2. The straight-through large flow stop valve according to claim 1 is characterized in that: Two limiting grooves (9) are oppositely formed on the right side of the valve body (1), and the left ends of the two limiting rods (8) are respectively inserted into the two limiting grooves (9).

3. The straight-through large flow stop valve according to claim 1 is characterized in that: An annular groove is provided on the left side of the connector (4), and a sealing ring (10) is arranged in the annular groove.

4. The straight-through large flow stop valve according to claim 1 is characterized in that: A limit mechanism (7) is provided on the valve body (1), and the limit mechanism (7) comprises: a bracket (71) and a screw (72); the bracket (71) is fixedly connected to the top of the valve body (1); the bracket (71) is arranged in an inverted "U" shape; a through hole is provided at the top of the bracket (71); the outer wall of the valve stem (2) is slidably connected to the bracket (71); the screw (72) is threadedly connected to the top of the hand wheel (3); and the bottom end of the screw (72) passes through the hand wheel (3) and is plugged into the bracket (71).

5. The straight-through large flow stop valve according to claim 4 is characterized in that: The top of the bracket (71) is provided with an insertion hole, and the bottom end of the screw rod (72) is inserted into the insertion hole.

6. The straight-through large flow stop valve according to claim 1, characterized in that: There are two groups of the connecting mechanisms (6), and the two groups of the connecting mechanisms (6) are arranged opposite to each other on the outer wall of the connecting head (4).

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