CN102734489A - A light-duty rising rod pinch valve - Google Patents

Abstract

The invention discloses a light rising stem type pipe clamp valve which comprises an upper valve body (1), a lower valve body (2) and a valve rod (6), wherein a rubber pipe (7) on the lower valve body (2) forms a butt-clamping structure through an upper pressure rod (3) and a lower pressure rod (4) so as to realize the opening and closing of a pipeline.

Description

A light-duty rising rod pinch valve

technical field

The invention relates to a pipe pinch valve, in particular to a light-duty rising rod type pipe pinch valve.

Background technique

The metal valve body is used in traditional pipeline transportation. The metal valve body is easy to wear and has a low service life. At the same time, the valve body is an integrated structure, which is costly, frequent maintenance, and affects production. Maintenance and disassembly are troublesome and can only be replaced as a whole.

Contents of the invention

Aiming at the defects of the traditional metal valve body being easy to wear and having a low service life, the technical problem to be solved by the present invention is to provide a light-duty rising rod pinch valve which is wear-resistant, has a long service life and is easy to maintain.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a light-duty rising stem pinch valve, including an upper valve body, a lower valve body and a valve stem, the valve stem is provided with external threads, and the upper valve body is provided with There is an internal thread that matches the external thread on the valve stem. One side of the hose on the lower valve body is provided with an upper pressure rod. One end of the valve stem is in contact with the upper pressure rod. There is a support on the lower valve body. The other side of the rubber hose A lower pressing rod is provided, and guide rods are arranged at both ends of the lower pressing rod. The guide rod passes through the support and can slide on the support. The end of the guide rod is fixedly connected with the upper valve body. The upper pressing rod and the lower pressing rod form a clamping structure for the rubber hose. It also includes a casing for sealing the light-duty rising rod pinch valve, and the casing includes an upper casing and a lower casing. The other end of the valve stem is fixedly connected with a hand wheel. Grooves matching the guide rods are arranged at both ends of the upper pressing rod. The guide rod and the upper valve body are threaded. The upper shell and the lower shell are connected by bolts. Turn the handwheel, the handwheel drives the valve stem to move downward, the valve stem pushes the upper pressing rod to move downward and the upper pressing rod moves upward, thereby clamping the rubber hose and closing the pipe. When the pipeline needs to be opened, the handwheel is turned, and the upper pressing rod and the lower pressing rod are released.

The advantages of the present invention are that the split valve body is easy to disassemble during maintenance; the clip-type structure can ensure that the rubber hose does not leak when the valve is closed when it is pressed, and can withstand relatively large medium pressure; different types of rubber hose can be used , wear-resistant and corrosion-resistant; the upper shell and the lower shell can protect the valve body very well and achieve the effect of dust protection; it has a wide range of applications, such as shut-off in low-pressure pipelines such as water purification, sewage, slurry, and oil , ON and ADJUST are all available.

Description of drawings

Fig. 1 is the structural representation of a kind of light-duty rising rod type pinch valve of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the light-duty rising rod pinch valve in Fig. 1;

The marks in the above figures are: 1. Upper valve body, 2. Lower valve body, 3. Upper pressure rod, 4. Lower pressure rod, 5. Guide rod, 6. Valve stem, 7. Rubber hose, 8. Support , 9, handwheel, 10, upper shell, 11, lower shell.

Detailed ways

Fig. 1 is a structural schematic diagram of a light-duty exposed rod pinch valve of the present invention, comprising an upper valve body 1, a lower valve body 2 and a valve stem 6, the valve stem 6 is provided with an external thread, and the upper valve body 1 is provided with a The external thread on the valve stem 6 matches the internal thread, one side of the hose 7 on the lower valve body 2 is provided with an upper pressure rod 3, one end of the valve stem 6 is in contact with the upper pressure rod 3, and the lower valve body 2 is provided with a support 8. The other side of the rubber hose 7 is provided with a lower pressure rod 4, and the two ends of the lower pressure rod 4 are provided with a guide rod 5. The guide rod 5 passes through the support 8 and can slide on the support 8. The end of the guide rod 5 is connected to the The upper valve body 1 is fixedly connected, and the upper pressing rod 3 and the lower pressing rod 4 form a clamping structure to the rubber hose 7 . It also includes a housing that closes the light-duty rising rod pinch valve, and the housing includes an upper housing 10 and a lower housing 11 . The other end of the valve stem 6 is fixedly connected with a hand wheel 9 . Grooves matching the guide rod 5 are provided at both ends of the upper pressing rod 3 . The guide rod 5 is threadedly connected with the upper valve body 1 . The upper casing 10 and the lower casing 11 are connected by bolts. During use, turn the hand wheel 9, the hand wheel 9 drives the valve stem 6 to move downward, the valve stem 6 pushes the upper pressing rod 3 to move downward and the upper pressing rod 4 moves upward, thereby clamping the rubber hose 7 and sealing the pipeline. When the pipeline needs to be opened, the hand wheel 9 is turned, and the upper pressing rod 3 and the lower pressing rod 4 are released.

The split valve body is used for easy disassembly during maintenance; the clip-on structure can ensure that there is no leakage when the hose is pressed together and the valve is closed, and can withstand large medium pressure; different types of hose can be used, which are wear-resistant and resistant Corrosion; the upper shell and the lower shell can protect the valve body very well and achieve the effect of dust protection; the application field is wide, and the shut-off, opening and adjustment of low-pressure pipelines such as water purification, sewage, slurry, oil, etc. be usable.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as various insubstantial improvements are adopted in the method concept and technical solutions of the present invention, or there is no improvement Directly applying the conception and technical solutions of the present invention to other occasions falls within the protection scope of the present invention.

Claims (5)

1. A light-duty rising rod pinch valve, comprising an upper valve body (1), a lower valve body (2) and a valve stem (6), characterized in that the valve stem (6) is provided with external threads, The upper valve body (1) is provided with an internal thread that matches the upper external thread of the valve stem (6), and one side of the rubber hose (7) on the lower valve body (2) is provided with an upper pressure rod (3), one end of the valve stem (6) is in contact with the upper pressure rod (3), the lower valve body (2) is provided with a support (8), and the other side of the rubber hose (7) is provided with There is a lower pressing rod (4), the two ends of the lower pressing rod (4) are provided with guide rods (5), and the guide rods (5) pass through the support (8) and can be placed on the support (8) Sliding upward, the end of the guide rod (5) is fixedly connected with the upper valve body (1), and the upper pressing rod (3) and the lower pressing rod (4) form a pair of clips on the rubber hose (7) The structure also includes a housing that closes the light-duty rising rod pinch valve, and the housing includes an upper housing (10) and a lower housing (11). 2. The light-duty rising stem pinch valve according to claim 1, characterized in that, the other end of the valve stem (6) is fixedly connected with a hand wheel (9). 3. The light-duty rising rod pinch valve according to claim 1 or 2, characterized in that grooves matching the guide rod (5) are provided at both ends of the upper pressing rod (3). 4. The light-duty rising rod pinch valve according to claim 3, characterized in that, the guide rod (5) is threadedly connected to the upper valve body (1). 5. The light-duty rising rod pinch valve according to claim 4, characterized in that, the upper casing (10) and the lower casing (11) are connected by bolts.

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