Pipe clamping air cylinder

Abstract

The utility model discloses a pipe clamping air cylinder which comprises an air cylinder assembly. The air cylinder assembly is provided with an upper cylinder sleeve, a lower cylinder sleeve, an ejector rod, a spring, a fixing pin, a clamping rod and an air guide connector, the upper cylinder sleeve and the lower cylinder sleeve are connected in an inserted mode and fixed through the fixing pin, the ejector rod is arranged in an inner cavity of the upper cylinder sleeve and an inner cavity of the lower cylinder sleeve, the spring is arranged between the tail end of the upper cylinder sleeve and the tail end of the ejector rod, the air guide connector is arranged at the end of the lower cylinder sleeve, and the upper cylinder sleeve is provided with a clamping groove. The clamping rod is arranged in the inner cavity of the upper cylinder sleeve, the surface of the clamping rod and the top surface of the ejector rod are both arc surfaces, the surface of the hose is not prone to being damaged when the hose is clamped, the clamping contact faces on the two sides of the hose are reduced, clamping force is intensively released on the two sides of the hose, and the blocking performance is improved. The sealing ring is arranged at the tail end of the ejector rod, so that the leakproofness between the ejector rod and the lower cylinder sleeve can be improved, and insufficient cylinder pressure caused by air leakage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hose on-off control devices, in particular to a hose clamping cylinder. Background Art

[0002] The vaccine cultivation equipment is provided with a liquid-conducting hose. An on-off valve is connected to the hose to control the flow or blocking of the liquid. However, the valve is expensive, and the use of the clamping mechanism in the existing technology to control the on-off of the hose usually results in incomplete blocking, and a small amount of liquid will still flow in the hose. If the clamping force of the clamping mechanism is adjusted too tight, the two clamps will also cause damage or even rupture of the hose. In order to reduce damage to the hose and improve the blocking performance, a tube clamping cylinder is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is to provide a hose clamping cylinder to solve the problem of poor practicality of the hose on-off control device in the prior art.

[0004] In order to solve the above technical problems, the utility model discloses a tube clamping cylinder, comprising: a cylinder assembly; the cylinder assembly has an upper cylinder sleeve, a lower cylinder sleeve, a push rod, a spring, a fixing pin, a clamping rod and an air guide joint, the upper cylinder sleeve and the lower cylinder sleeve are plugged in and fixed by the fixing pin, the push rod is arranged in the inner cavity of the upper cylinder sleeve and the lower cylinder sleeve, the fixing pin is passed through the limiting hole of the push rod to limit its movement range, the spring is arranged between the end of the upper cylinder sleeve and the end of the push rod, the air guide joint is arranged at the end of the lower cylinder sleeve, the upper cylinder sleeve is provided with a clamping groove, the clamping rod is arranged in the inner cavity of the upper cylinder sleeve and the upper end of the push rod is respectively located on both sides of the clamping groove.

[0005] Furthermore, the end of the upper cylinder sleeve has a plug-in portion, and the plug-in portion is radially provided with a pin hole.

[0006] Furthermore, a pin hole is radially provided at the upper end of the lower cylinder sleeve.

[0007] Furthermore, the top surface of the push rod is an arc surface, and the side wall of the end thereof is provided with a step portion, the step portion is provided with a sealing groove, and a sealing ring is provided in the sealing groove.

[0008] Furthermore, the above-mentioned limiting hole is an elongated hole.

[0009] Compared with the existing technology, this application can achieve the following technical effects:

[0010] The utility model provides a clamping rod in the inner cavity of the upper cylinder sleeve, and the surface of the clamping rod and the top surface of the push rod are both arc surfaces, so the surface of the clamped hose is not easily damaged, and the contact surface of the clamping on both sides of the hose is reduced, and the clamping force is concentrated and released on both sides of the hose, thereby improving the blocking performance. A sealing ring is provided at the end of the push rod to improve the airtightness between the push rod and the lower cylinder sleeve, thereby avoiding the occurrence of insufficient cylinder pressure due to air leakage.

[0011] Of course, any product implementing this application does not necessarily need to achieve all the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 Schematic diagram of a pipe clamping cylinder according to one embodiment of the present invention;

[0014] Figure 2 It is a cross-sectional schematic diagram of a tube clamping cylinder according to one embodiment of the present invention.

[0015] Figure ID

[0016] Cylinder assembly 1, upper cylinder sleeve 2, lower cylinder sleeve 3, push rod 4, spring 5, fixing pin 6, clamping rod 7, air guide joint 8, limiting hole 9, clamping groove 10, plug-in part 11, step part 12, sealing ring 13. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of a pipe clamping cylinder according to one embodiment of the present invention; Figure 2 It is a cross-sectional schematic diagram of a tube clamping cylinder according to one embodiment of the present invention.

[0019] A tube clamp cylinder comprises: a cylinder assembly; the cylinder assembly 1 has an upper cylinder sleeve 2, a lower cylinder sleeve 3, a push rod 4, a spring 5, a fixing pin 6, a clamping rod 7 and an air guide joint 8, the upper cylinder sleeve 2 and the lower cylinder sleeve 3 are plugged in and fixed by the fixing pin 6, the push rod 4 is arranged in the inner cavity of the upper cylinder sleeve 2 and the lower cylinder sleeve 3, the fixing pin 6 is passed through the limiting hole 9 of the push rod 4 to limit its movement range, the spring 5 is arranged between the end of the upper cylinder sleeve 2 and the end of the push rod 4, the air guide joint 8 is arranged at the end of the lower cylinder sleeve 3, the upper cylinder sleeve 2 is provided with a clamping groove 10, the clamping rod 7 is arranged in the inner cavity of the upper cylinder sleeve 2 and the upper end of the push rod 4 is respectively located on both sides of the clamping groove 10.

[0020] The end of the upper cylinder sleeve 2 has a plug-in portion 11, and the plug-in portion 11 is radially provided with a pin hole; the upper end of the lower cylinder sleeve 3 is radially provided with a pin hole; the top surface of the push rod 4 is an arc surface, and the side wall of its end is provided with a step portion 12, and the step portion 12 is provided with a sealing groove, and a sealing ring 13 is provided in the sealing groove; the limiting hole 9 is a long strip hole.

[0021] The hose is placed in the clamping groove 10 of the upper cylinder sleeve 2, and the air guide joint 8 is connected to the air pump through the pipe body. After the boost valve is opened, the air pressure pushes the push rod 4 upward, and the top of the push rod 4 and the clamping rod 7 clamp the hose to block the flow of liquid. The boost valve is closed to relieve pressure and open, the air pressure is reduced, and the spring 5 drives the push rod 4 to reset.

[0022] The utility model provides a clamping rod 7 in the inner cavity of the upper cylinder sleeve 2. The surface of the clamping rod 7 and the top surface of the push rod 4 are both arc surfaces. The surface of the clamping hose is not easily damaged, and the contact surface of the clamping on both sides of the hose is reduced. The clamping force is concentrated and released on both sides of the hose, which improves the blocking performance. The sealing ring 13 is provided at the end of the push rod 4 to improve the airtightness between the push rod 4 and the lower cylinder sleeve 3, avoiding the occurrence of insufficient cylinder pressure due to air leakage.

[0023] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A tube clamp cylinder comprising: Cylinder assembly; It is characterized in that the cylinder assembly has an upper cylinder sleeve, a lower cylinder sleeve, a push rod, a spring, a fixing pin, a clamping rod and an air guide joint. The upper cylinder sleeve and the lower cylinder sleeve are plugged in and fixed by the fixing pin. The push rod is arranged in the inner cavity of the upper cylinder sleeve and the lower cylinder sleeve. The fixing pin is passed through the limiting hole of the push rod to limit its movement range. The spring is arranged between the end of the upper cylinder sleeve and the end of the push rod. The air guide joint is arranged at the end of the lower cylinder sleeve. The upper cylinder sleeve is provided with a clamping groove. The clamping rod is arranged in the inner cavity of the upper cylinder sleeve and is located on both sides of the clamping groove with the upper end of the push rod.

2. The tube clamp cylinder according to claim 1, wherein: The end of the upper cylinder sleeve is provided with an inserting portion, and the inserting portion is radially provided with a pin hole.

3. The tube clamp cylinder according to claim 1, wherein: A pin hole is radially provided at the upper end of the lower cylinder sleeve.

4. The tube clamp cylinder according to claim 1, wherein: The top surface of the push rod is an arc surface, and the side wall of the end thereof is provided with a step portion, the step portion is provided with a sealing groove, and a sealing ring is provided in the sealing groove.

5. The tube clamp cylinder according to claim 1, wherein: The limiting hole is an elongated hole.

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