Reducing type pneumatic pipe clamp valve

Abstract

The utility model relates to a variable-diameter pneumatic pipe clamp valve, which comprises a valve seat, a pipe clamp piece, an adapter piece, a cylinder piece and a pressure head piece, the valve seat is detachably connected with the pipe clamp piece, the pipe clamp piece is provided with a bearing part, a side positioning part and a lower positioning part which are used for clamping the valve seat, and the bearing part and the valve seat are combined to form a mounting groove for placing a hose. The pipe clamping piece is connected to the valve seat through the lower positioning part, the valve seat is connected with an air cylinder piece through an adapter piece, the output end of the air cylinder piece penetrates through the adapter piece to extend into the mounting groove, and the output end of the air cylinder piece is detachably connected with a pressure head piece used for extruding the hose. The utility model mainly aims to realize the radial installation of the pipe clamp valve through the combination of the pipe clamp piece and the valve seat which are detachably connected, namely, the pipe clamp valve can be quickly assembled under the condition that a pipeline is not disassembled; the bearing part, the side positioning part and the lower positioning part of the pipe clamp are accurately assembled with the valve seat at the same time, and the pipe clamp can be matched with hoses with different outer diameters by replacing pipe clamps of different models and is suitable for various application scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe clamp valves, in particular to a variable diameter pneumatic pipe clamp valve. Background Art

[0002] In the field of industrial fluid control, pipe clamp valves are widely used in chemical, environmental protection, food and medicine industries due to their advantages such as simple structure, good sealing, corrosion resistance and suitability for high-viscosity or particulate media. Traditional pipe clamp valves usually adopt a fixed structure, which has certain defects. For example, patent No. ZL201210238315.0 discloses a pneumatic pipe clamp valve, the two ends of which need to be directly connected to the pipeline, and flow control is achieved by squeezing the internal hose. Although this structure can meet the needs of regulating flow, if maintenance is required, it is often necessary to interrupt the pipeline for maintenance, which seriously affects production efficiency. In addition, the structure of the valve body is fixed. If the size of the external pipeline is not suitable, it is necessary to directly replace the pipe clamp valve model or install a transfer pipe, which is inconvenient. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a variable diameter pneumatic pipe clamp valve, including a valve seat, a pipe clamp, an adapter, a cylinder part and a pressure head part, the valve seat is detachably connected to the pipe clamp part, the pipe clamp part is provided with a supporting part, a side positioning part and a lower positioning part for clamping the valve seat, the supporting part and the valve seat are combined to form an installation groove for placing a hose, and the pipe clamp part is connected to the valve seat through the lower positioning part, the valve seat is connected to the cylinder part through the adapter part, the output end of the cylinder part extends into the installation groove through the adapter part, and the output end of the cylinder part is detachably connected to a pressure head part for squeezing the hose.

[0004] By adopting the above technical solution, radial installation of the pipe clamp valve is achieved through the combination of detachable pipe clamp and valve seat, that is, the pipe clamp valve can be quickly assembled without disassembling the pipeline; the supporting part, side positioning part and lower positioning part of the pipe clamp are precisely assembled with the valve seat at the same time, and different types of pipe clamps can be replaced to adapt to hoses with different outer diameters, which is suitable for a variety of application scenarios.

[0005] The utility model is further configured as follows: the valve seat is provided with a mounting portion, a bending portion and an extension portion; the mounting portion is provided with a flange portion for fixing the pipe clamp valve; the upper end of the mounting portion is connected to a cylinder portion through an adapter; the lower end of the mounting portion and the bending portion form a rectangular groove with a side opening; the supporting portion is clamped in the rectangular groove; the side positioning portion is clamped between the mounting portion and the extension portion; the extension portions are symmetrically distributed on the front and rear sides of the bending portion; the lower positioning portion is clamped between the two groups of extension portions, and the extension portion is provided with a threaded hole for fixing the lower positioning portion.

[0006] Furthermore, the supporting portion as a whole is a rectangular parallelepiped structure adapted to the rectangular groove, and the side positioning portion is provided with an upper positioning surface for abutting against the mounting portion, and a lower positioning surface for abutting against the extension portion.

[0007] Using the above technical solution, the pipe clamp is L-shaped as a whole. When installing the pipe clamp, the supporting part is inserted into the valve seat along the rectangular groove until the end face of the supporting part abuts the bent part. At this time, the upper positioning surface and the lower positioning surface of the side positioning part abut the installation part and the extension part respectively, and the lower positioning part is clamped between the two groups of extension parts. The installation method is simple and quick.

[0008] The utility model is further configured such that the supporting portion is provided with a first arc surface adapted to the outer contour of the hose, the side positioning portion is provided with a second arc surface coaxially distributed with the first arc surface, and the extending portion is provided with a third arc surface combined with the second arc surface to form a circular hole.

[0009] By adopting the above technical solution, the outer surface of the hose fits with the first arc surface, so that the bottom of the hose is effectively supported, avoiding damage due to excessive deformation after extrusion; by replacing the pipe clamps with different first arc surface radii, it can be adapted to hoses of various outer diameters, without the need to replace the valve seat as a whole and reducing costs; when the side positioning part and the extension part are spliced, the second arc surface and the third arc surface are combined into a circular hole shape, thereby improving the aesthetics of the pipe clamp valve.

[0010] The present invention is further configured such that the pressing head member is provided with a spherical surface in the direction of the first arc surface.

[0011] By adopting the above technical solution, when the cylinder drives the pressure head to squeeze the hose, the spherical surface of the pressure head is tangent to the upper surface of the hose, and the tighter the tube clamp valve is clamped, the larger the contact area between the pressure head and the hose, thereby avoiding damage to the hose due to excessive local pressure on the hose.

[0012] The present invention is further configured such that the extension portion is provided with an inner side surface facing perpendicular to the threaded hole, and the lower positioning portion is clamped between the two groups of extension portions through the inner side surface.

[0013] By adopting the above technical solution, the inner side surfaces of the two groups of extension parts are parallel to each other, and the lower positioning part is clamped between the two inner side surfaces, which effectively limits the freedom of the pipe clamp in the front-back direction and improves the stability of the structure.

[0014] The present invention is further configured such that the mounting portion is provided with coaxially distributed internal threads and a center hole, the adapter is connected to the valve seat via the internal threads, and the pressure head extends through the center hole to the mounting groove.

[0015] With the above technical solution, the cylinder is threadedly connected to the valve seat through an adapter. Since the internal thread and the center hole are coaxially distributed, the pressure head is naturally coaxially distributed in the center hole after installation, and no manual adjustment is required. When the cylinder fails, the cylinder can be freely disassembled and replaced relative to the valve seat, reducing maintenance costs.

[0016] The embodiments of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main view of the utility model;

[0018] Figure 2 This is an exploded view of the structure of the present utility model;

[0019] Figure 3 It is a cross-sectional view of the valve seat of the utility model;

[0020] Figure 4 A three-dimensional diagram of the valve seat of the present invention;

[0021] Figure 5 This is a three-dimensional diagram of the pipe clamp of the present invention;

[0022] Figure 6 For the utility model Figure 1 Schematic diagram of the structure of the pipe clamp valve clamping the hose at A in the middle;

[0023] Wherein: 1 - valve seat, 2 - pipe clamp, 3 - adapter, 4 - cylinder, 5 - pressure head, 6 - hose, 10 - mounting groove, 11 - mounting portion, 12 - bending portion, 13 - extension portion, 14 - flange, 15 - rectangular groove, 16 - threaded hole, 17 - third arc surface, 18 - inner side surface, 19 - internal thread, 20 - center hole, 21 - supporting portion, 22 - side positioning portion, 23 - lower positioning portion, 24 - upper positioning surface, 25 - lower positioning surface, 26 - first arc surface, 27 - second arc surface, 28 - through hole, 51 - spherical surface; DETAILED DESCRIPTION

[0024] like Figure 1 、 2 As shown in Figures 5 and 6, this embodiment provides a variable diameter pneumatic pipe clamp valve, including a valve seat 1, a pipe clamp 2, an adapter 3, a cylinder 4 and a pressure head 5. The valve seat 1 is detachably connected to the pipe clamp 2. The pipe clamp 2 is provided with a supporting portion 21, a side positioning portion 22 and a lower positioning portion 23 for clamping the valve seat 1. The supporting portion 21 is combined with the valve seat 1 to form a mounting groove 10 for placing a hose, and the pipe clamp 2 is connected to the valve seat 1 through the lower positioning portion 23. The valve seat 1 is connected to the cylinder 4 through the adapter 3. The output end of the cylinder 4 extends through the adapter 3 into the mounting groove 10, and the output end of the cylinder 4 is detachably connected to the pressure head 5 for squeezing the hose.

[0025] Combine Figure 3 、 4 As shown, in this embodiment, the valve seat 1 is provided with a mounting portion 11, a bending portion 12 and an extension portion 13. The mounting portion 11 is provided with a flange portion 14 for fixing the pipe clamp valve. The upper end of the mounting portion 11 is connected to the cylinder member 4 through the adapter 3. The lower end of the mounting portion 11 and the bending portion 12 form a rectangular groove 15 with a side opening. The supporting portion 21 is clamped in the rectangular groove 15. The side positioning portion 22 is clamped between the mounting portion 11 and the extension portion 13. The extension portions 13 are symmetrically distributed on the front and rear sides of the bending portion 12. The lower positioning portion 23 is clamped between the two groups of extension portions 13, and the extension portion 13 is provided with a fixing portion for fixing the lower positioning portion. The threaded hole 16 of the part 23, the supporting part 21 as a whole is a rectangular structure adapted to the rectangular groove 15, the side positioning part 22 is provided with an upper positioning surface 24 for abutting the mounting part 11, and a lower positioning surface 25 for abutting the extension part 13, the pipe clamp 2 is L-shaped as a whole. When installing the pipe clamp 2, the supporting part 21 is inserted into the valve seat 1 along the rectangular groove 15 until the end face of the supporting part 21 abuts against the bending part 12. At this time, the upper positioning surface 24 and the lower positioning surface 25 of the side positioning part 22 abut against the mounting part 11 and the extension part 13 respectively, and the lower positioning part 23 is clamped between the two groups of extension parts 13.

[0026] In this embodiment, the supporting portion 21 is provided with a first curved surface 26 adapted to the outer contour of the hose, the side positioning portion 22 is provided with a second curved surface 27 coaxially distributed with the first curved surface 26, and the extension portion 13 is provided with a third curved surface 17 combined with the second curved surface 27 to form a circular hole. The outer surface of the hose fits with the first curved surface 26, so that the bottom of the hose is effectively supported to avoid damage caused by excessive deformation after extrusion. When the side positioning portion 22 and the extension portion 13 are spliced, the second curved surface 27 and the third curved surface 17 are combined into a circular hole, thereby improving the aesthetics of the pipe clamp valve.

[0027] Combine Figure 6 As shown, in this embodiment, the pressing head member 5 is provided with a spherical surface 51 facing the first arc surface 26, and the pressing head member 5 is clamped at the output end of the cylinder member 4. When the cylinder member 4 drives the pressing head member 5 to squeeze the hose, the spherical surface 51 of the pressing head member 5 is tangent to the upper surface of the hose, and the tighter the hose clamp valve is clamped, the larger the contact area between the pressing head member 5 and the hose, thereby avoiding damage to the hose due to excessive local pressure on the hose.

[0028] In this embodiment, the extension portion 13 is provided with an inner side surface 18 facing perpendicular to the threaded hole 16, and the lower positioning portion 23 is provided with a through hole 28 coaxially distributed with the threaded hole 16. The lower positioning portion 23 is clamped between the two groups of extension portions 13 through the inner side surface 18. The inner side surfaces 18 of the two groups of extension portions 13 are parallel to each other. The lower positioning portion 23 is clamped between the two inner side surfaces 18, which effectively limits the freedom of the pipe clamp 2 in the front-to-back direction and improves the stability of the structure.

[0029] In this embodiment, the mounting portion 11 is provided with a coaxially distributed internal thread 19 and a center hole 20, the adapter 3 is connected to the valve seat 1 via the internal thread 19, the pressure head 5 extends through the center hole 20 to the mounting groove 10, and the cylinder part 4 is threadedly connected to the valve seat 1 via the adapter 3. Since the internal thread 19 and the center hole 20 are coaxially distributed, the pressure head 5 is naturally coaxially distributed in the center hole 20 after installation is completed, and no manual adjustment is required; when the cylinder part 4 fails, the cylinder part 4 can be freely disassembled and replaced relative to the valve seat 1, thereby reducing maintenance costs.

[0030] like Figure 1 、 2 As shown in Figures 6 and 7, the working principle of the present invention is that before the tube clamp valve is clamped on the hose, the tube clamp 2 is first removed, the tube clamp 2 is placed on one side of the hose, and the first arc is fitted to the outer surface of the hose, and the valve seat 1 is placed on the other side of the hose, so that the tube clamp 2 and the valve seat 1 are clamped together, and the two are fixed together by screws passing through the threaded holes 16. At this time, the hose is placed in the installation groove 10, and the pressure head 5 is controlled by the cylinder part 4 to move toward the installation groove 10, so that the pressure head 5 squeezes the hose, thereby controlling the flow of the medium.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A variable diameter pneumatic pipe clamp valve, characterized in that: The invention comprises a valve seat (1), a pipe clamp (2), an adapter (3), a cylinder (4) and a pressure head (5); the valve seat (1) is detachably connected to the pipe clamp (2); the pipe clamp (2) is provided with a supporting portion (21), a side positioning portion (22) and a lower positioning portion (23) for clamping the valve seat (1); the supporting portion (21) and the valve seat (1) are combined to form a mounting groove (10) for placing a hose; the pipe clamp (2) is connected to the valve seat (1) via the lower positioning portion (23); the valve seat (1) is connected to the cylinder (4) via the adapter (3); the output end of the cylinder (4) passes through the adapter (3) and extends into the mounting groove (10); and the output end of the cylinder (4) is detachably connected to the pressure head (5) for squeezing the hose.

2. The variable diameter pneumatic pipe clamp valve according to claim 1, characterized in that: The valve seat (1) is provided with a mounting portion (11), a bending portion (12) and an extension portion (13); the mounting portion (11) is provided with a flange portion (14) for fixing the pipe clamp valve; the upper end of the mounting portion (11) is connected to the cylinder portion (4) through an adapter (3); the lower end of the mounting portion (11) and the bending portion (12) form a rectangular groove (15) with a side opening; the supporting portion (21) is clamped in the rectangular groove (15); the side positioning portion (22) is clamped between the mounting portion (11) and the extension portion (13); the extension portions (13) are symmetrically distributed on the front and rear sides of the bending portion (12); the lower positioning portion (23) is clamped between the two groups of extension portions (13), and the extension portion (13) is provided with a threaded hole (16) for fixing the lower positioning portion (23).

3. The variable diameter pneumatic pipe clamp valve according to claim 2, characterized in that: The supporting portion (21) is a rectangular parallelepiped structure adapted to the rectangular groove (15), and the side positioning portion (22) is provided with an upper positioning surface (24) for abutting the mounting portion (11) and a lower positioning surface (25) for abutting the extension portion (13).

4. The variable diameter pneumatic pipe clamp valve according to claim 3, characterized in that: The supporting portion (21) is provided with a first arc surface (26) adapted to the outer contour of the hose, the side positioning portion (22) is provided with a second arc surface (27) coaxially distributed with the first arc surface (26), and the extending portion (13) is provided with a third arc surface (17) combined with the second arc surface (27) to form a circular hole.

5. The variable diameter pneumatic pipe clamp valve according to claim 4, characterized in that: The pressing head member (5) is provided with a spherical surface (51) facing the first arc surface (26).

6. The variable diameter pneumatic pipe clamp valve according to claim 2, characterized in that: The extension portion (13) is provided with an inner side surface (18) facing perpendicular to the threaded hole (16), and the lower positioning portion (23) is clamped between the two groups of extension portions (13) through the inner side surface (18).

7. The variable diameter pneumatic pipe clamp valve according to claim 2, characterized in that: The mounting portion (11) is provided with coaxially distributed internal threads (19) and a center hole (20); the adapter (3) is connected to the valve seat (1) via the internal threads (19); and the pressure head (5) passes through the center hole (20) and extends to the mounting groove (10).

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