A manual clamp valve

Abstract

A manual clamp valve includes a housing and an inner sleeve. The housing consists of an upper housing and a lower housing. The inner sleeve is fitted inside the housing. An adjusting screw is threaded into the upper housing, with its bottom threaded through the upper housing. A movable frame is rotatably connected to the bottom of the adjusting screw, and two first clamping plates are symmetrically installed at the bottom of the movable frame. Four cylinder tubes surrounding the inner sleeve are symmetrically installed inside the lower housing, and a telescopic cylinder is fixedly connected to the bottom of each cylinder tube. A second clamping plate, symmetrical to the first clamping plates, is installed between two telescopic cylinders. A limit tube with a groove is installed at the top of each cylinder tube. A piston is installed inside each cylinder tube, and a pressing rod penetrating the top of the cylinder tube is installed at the top of the piston. The top of the pressing rod passes through the limit tube and is connected to a connector, which is fixedly connected to the corner of the movable frame. This invention has advantages such as improved work efficiency and extended service life.

Description

Technical Field

[0001] This utility model relates to the field of pipe clamp valve technology, and in particular to a manual pipe clamp valve. Background Technology

[0002] In modern industry, when solid or liquid products containing abrasive substances such as particles, powders, fibers, and slurries are transported through pipelines, or when corrosive media are involved in chemical processes, manual clamp valves are the best choice.

[0003] However, existing pinch valves have the following drawbacks during use:

[0004] 1. Existing manual clamp valves mostly achieve the on / off effect by rotating the adjusting screw to move the movable clamping plate downward, pressing the inner sleeve from above. This results in slow on / off efficiency and reduced work efficiency.

[0005] 2. Existing manual clamp valves use a movable clamping plate to hold one part of the inner sleeve, which causes a large impact force at the clamping point. In addition, long-term clamping of one point can easily cause damage to the inner sleeve and reduce its service life. Utility Model Content

[0006] This invention provides a manual clamp valve to solve the problems mentioned in the background art.

[0007] To address the aforementioned problems, this utility model provides a manual clamp valve, comprising a housing and an inner sleeve. The housing has a first flange on one side and a second flange on the other side, and is composed of an upper housing and a lower housing. The inner sleeve is fitted inside the housing, and its two ends are bolted to the first flange and the second flange, respectively. An adjusting screw is threaded into the upper housing, with its bottom threaded through the upper housing. A movable frame is rotatably connected to the bottom of the adjusting screw, and two first clamping plates are symmetrically installed at the bottom of the movable frame. The lower... Four cylinder tubes are symmetrically installed inside the housing, surrounding the inner sleeve. A telescopic cylinder is fixedly connected to the bottom of each cylinder tube. A second clamping plate, symmetrical to the first clamping plate, is installed between two of the telescopic cylinders. The second clamping plate is connected to the telescopic end of the telescopic cylinder. A limit tube is installed at the top of each cylinder tube, and a sliding groove is opened in the limit tube. A piston is installed inside each cylinder tube, and a pressing rod is installed at the top of the piston, penetrating the top of the cylinder tube. The top of the pressing rod passes through the limit tube and is connected to a connector, which is fixedly connected to the corner of the movable frame.

[0008] Preferably, the upper housing is provided with a locking mechanism that matches the adjusting screw.

[0009] Preferably, the upper and lower housings are connected by bolts.

[0010] Preferably, the connector is slidably connected inside the limiting tube and slidably connected to the sliding groove.

[0011] The beneficial effects of adopting the above technical solutions are:

[0012] 1. By adjusting the rotation of the screw, the movable frame is driven to move down, causing the first clamping plate to move down and squeeze the inner sleeve. At the same time, the squeezing rod is driven to move the piston in the cylinder tube, so that the gas is squeezed into the telescopic cylinder. The telescopic cylinder drives the second clamping plate to move synchronously. Through the synchronous movement of the two first clamping plates and the two second clamping plates, the inner sleeve is quickly squeezed to complete the on / off operation, thus improving work efficiency.

[0013] 2. By simultaneously clamping the inner sleeve with two first clamps and two second clamps, the clamping of the inner sleeve is avoided at one point, which reduces the impact force on the inner sleeve and thus improves the service life of the inner sleeve. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional view of the internal structure of this utility model.

[0016] Wherein: 1-shell; 11-first flange; 12-second flange; 13-upper shell; 14-lower shell; 2-inner sleeve; 3-adjusting screw; 31-movable frame; 32-first clamping plate; 33-cylinder tube; 331-piston; 332-pressing rod; 34-telescopic cylinder; 35-second clamping plate; 36-limiting tube; 37-slide groove; 38-connecting piece; 39-locking mechanism. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-2 In this embodiment, a manual clamp valve includes a housing 1 and an inner sleeve 2. The housing 1 has a first flange 11 on one side and a second flange 12 on the other side. The housing 1 is composed of an upper housing 13 and a lower housing 14. The inner sleeve 2 is fitted inside the housing 1, and its two ends are respectively bolted to the first flange 11 and the second flange 12. An adjusting screw 3 is threadedly connected to the upper housing 13, and the bottom end of the adjusting screw 3 is threaded through the upper housing 13. A movable frame 31 is rotatably connected to the bottom end of the adjusting screw 3, and two first clamping plates 32 are symmetrically installed at the bottom of the movable frame 31. Four rings are symmetrically installed inside the lower housing 14. A cylinder tube 33 is wound around the inner sleeve 2, and a telescopic cylinder 34 is fixedly connected to the bottom of each cylinder tube 33. A second clamping plate 35, which is symmetrical to the first clamping plate 32, is installed between two of the telescopic cylinders 34. The second clamping plate 35 is connected to the telescopic end of the telescopic cylinder 34. A limiting tube 36 is installed at the top of the cylinder tube 33, and a sliding groove 37 is opened in the limiting tube 36. A piston 331 is provided inside the cylinder tube 33, and a pressing rod 332 that penetrates the top of the cylinder tube 33 is installed at the top of the piston 331. The top of the pressing rod 332 penetrates the limiting tube 36 and is connected to a connector 38. The connector 38 is fixedly connected to the corner of the movable frame 31.

[0021] Through the above technical solution, during the switching operation, the adjusting screw 3 is manually driven to rotate, thereby driving the movable frame 31 to move downward, driving the first clamping plate 32 to move downward. At the same time, the downward movement of the movable frame 31 drives the extrusion rod 332 to move downward. The downward movement of the extrusion rod 332 drives the piston 331 to move inside the cylinder tube 33, thereby squeezing the gas into the telescopic cylinder 34, driving the telescopic cylinder 34 to work. The telescopic cylinder 34 drives the second clamping plate 35 to work. Through the movement of the first clamping plate 32 and the second clamping plate 35, the inner sleeve 2 is clamped to complete the switching operation, improving work efficiency. By cooperating with the two first clamping plates 32 and the two second clamping plates 35, the impact of the conveyed medium on the inner sleeve 2 during clamping is reduced, and clamping in one place is avoided, thus improving the service life of the inner sleeve 2.

[0022] Preferably, the upper housing 13 is provided with a locking mechanism 39 that matches the adjusting screw 3.

[0023] The locking mechanism 39, which is a prior art technology, is used to lock the adjusting screw 3, preventing the adjusting screw 3 from rotating and affecting the on / off state, thus ensuring the stability of the clamp valve operation.

[0024] Preferably, the upper housing 13 and the lower housing 14 are connected by bolts.

[0025] Through the above technical solution, the bolted connection between the upper housing 13 and the lower housing 14 facilitates assembly and disassembly, and thus facilitates internal maintenance.

[0026] Preferably, the connector 38 is slidably connected within the limiting tube 36 and slidably connected with the sliding groove 37.

[0027] Through the above technical solution, the connecting piece 38, in conjunction with the sliding of the limiting tube 36 and the sliding groove 37, enables the movable frame 31 to stably drive the pressing rod 332 to move, while ensuring the stability of the movable frame 31 driving the first clamping plate 32 to move.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A manual clamp valve, comprising a housing and an inner sleeve, characterized in that: The housing has a first flange on one side and a second flange on the other side, and the housing is composed of an upper housing and a lower housing. The inner sleeve is fitted inside the housing, and its two ends are respectively bolted to the first flange and the second flange. An adjusting screw is threadedly connected to the upper housing, and the bottom end of the adjusting screw is threaded through the upper housing. The bottom end of the adjusting screw is rotatably connected to a movable frame, and two first clamping plates are symmetrically installed at the bottom of the movable frame. Four cylinder tubes surrounding the inner sleeve are symmetrically installed inside the lower housing, and a telescopic cylinder is fixedly connected to the bottom of each cylinder tube. A second clamping plate symmetrical to the first clamping plate is installed between two telescopic cylinders, and the second clamping plate is connected to the telescopic end of the telescopic cylinder. A limit tube is installed at the top of the cylinder tube, and a sliding groove is opened in the limit tube. A piston is installed inside the cylinder tube, and a pressing rod penetrating the top of the cylinder tube is installed at the top of the piston. The top of the pressing rod penetrates the limit tube and is connected to a connector, and the connector is fixedly connected to the corner of the movable frame.

2. A manual clamp valve according to claim 1, characterized in that: The upper housing is provided with a locking mechanism that matches the adjusting screw.

3. A manual clamp valve according to claim 1, characterized in that: The upper and lower housings are connected by bolts.

4. A manual clamp valve according to claim 1, characterized in that: The connector is slidably connected inside the limiting tube and slidably connected to the slide groove.

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