Pipe joint anti-falling structure

Abstract

The utility model discloses a pipe joint anti-falling structure, and belongs to the technical field of pipe joints. A pipe joint anti-falling structure comprises a connecting sleeve and further comprises a connecting groove used for being connected with a pipe fitting in an inserted mode, exhaust holes which are formed in the two ends of the connecting sleeve respectively and communicated with the connecting groove are formed in the connecting sleeve, rubber plugs are arranged in outlets of the exhaust holes, and limiting pieces used for limiting sliding of the pipe fitting are arranged at the two ends of the connecting sleeve. The connecting grooves are formed in the two ends of the connecting sleeve, after the pipe fitting is inserted in place, closed negative pressure cavities can be formed in the connecting grooves, the pipe fitting is fixed in the connecting sleeve, the inner wall and the outer wall of the pipe fitting are attached to the inner walls of the connecting grooves respectively, deformation is difficult to happen, the connecting reliability can be guaranteed, and the service life of the pipe fitting is prolonged. And the elastic clamping plate is arranged on the connecting sleeve, so that the axial displacement of the pipe fitting can be limited, and the fixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to an anti-drop structure for a pipe joint. Background Art

[0002] During the pharmaceutical production process, a vacuum nozzle is usually used to pick up and place medicine boxes. At this time, the air pipe used by the vacuum nozzle is connected to the main air pipe through a pipe joint. The pipe joint is a part that connects the pipeline in the hydraulic system or installs the pipeline on the hydraulic component. It is a general term for connectors that can be installed and removed in the fluid path. It mainly includes: welding type, ferrule type, crimping type and flaring type.

[0003] When in use, the pipe joint is used to connect pipe fittings so that the pipe fittings are interconnected and remain sealed. However, after a period of use, the connection between the pipe joint and the hose is prone to deformation, causing the pipe joint to loosen, affecting normal use. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that a pipe joint is easily loosened after a hose is deformed, and proposes a pipe joint anti-loosening structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pipe joint anti-detachment structure includes a connecting sleeve and a connecting groove for plugging in a pipe fitting, which are respectively opened at both ends of the connecting sleeve, and an exhaust hole connected to the connecting groove is opened in the connecting sleeve, a rubber plug is provided in the outlet of the exhaust hole, and both ends of the connecting sleeve are provided with a limit piece for limiting the sliding of the pipe fitting.

[0007] In order to improve the sealing effect between the pipe fitting and the connecting groove, preferably, sealing rings are fixedly provided on the inner walls on both sides of the connecting groove, and the two groups of sealing rings are respectively against the inner wall and outer wall of the pipe fitting, and the sealing rings are close to the opening of the connecting groove, and the exhaust hole is connected to the bottom of the connecting groove.

[0008] In order to increase the adhesion effect between the pipe and the inner wall of the connecting groove, preferably, multiple groups of protrusions are fixedly provided on the inner wall of one side of the connecting groove, and grooves corresponding to the protrusions are opened on the inner wall of the other side of the connecting groove, and the protrusions and grooves are both annular structures.

[0009] In order to avoid scratching the outer wall and the inner wall of the pipe, further, the cross-sections of the protrusions and the grooves are both arc-shaped structures.

[0010] Preferably, the top of the rubber stopper is fixedly connected to the connecting sleeve via an elastic rope, a draw rope is fixedly provided on the rubber stopper, and the rubber stopper is interference fit with the exhaust hole.

[0011] Preferably, the limiting member includes at least two groups of elastic clips, both ends of the connecting sleeve are provided with mounting grooves, one end of the elastic clip is fixedly connected in the corresponding mounting groove, and the elastic clip is engaged with the slot of the pipe.

[0012] Compared with the prior art, the present invention provides a pipe joint anti-slip structure with the following beneficial effects:

[0013] 1. The anti-slip structure of the pipe joint is to open connection grooves at both ends of the connecting sleeve, insert one end of the pipe into the connection groove, and after the connection is in place, reinsert the rubber plug into the vent hole to prevent gas from entering the connection groove from the vent hole. At this time, a closed negative pressure chamber is formed in the connecting groove, which can fix the pipe in the connecting sleeve. In addition, the inner wall and outer wall of one end of the pipe fit the inner wall of the connecting groove respectively, which is less likely to deform, thereby ensuring the reliability of the connection, reducing the possibility of the connecting sleeve and the pipe loosening, and improving the use effect.

[0014] 2. The anti-slip structure of the pipe joint can limit the axial displacement of the pipe fitting by setting an elastic clamp at the mouth of the connecting groove, reducing the possibility of slipping out of the connecting groove and further improving reliability during use.

[0015] The parts not involved in this device are the same as the existing technology or can be implemented by using the existing technology. The utility model provides connecting grooves at both ends of the connecting sleeve. When the pipe fitting is inserted into place, a closed negative pressure cavity is formed in the connecting groove, thereby fixing the pipe fitting in the connecting sleeve. Moreover, the inner wall and outer wall of the pipe fitting respectively fit the inner wall of the connecting groove, which is less likely to deform, thereby ensuring the reliability of the connection and reducing the possibility of the connecting sleeve and the pipe fitting loosening. In addition, an elastic clip is provided on the connecting sleeve to limit the axial displacement of the pipe fitting and improve the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a pipe joint anti-slip structure proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of a pipe joint anti-slip structure proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the vent hole of the anti-detachment structure of a pipe joint proposed by the utility model;

[0019] Figure 4 A pipe joint anti-slip structure proposed by the utility model Figure 3 Enlarged view of part A.

[0020] In the figure: 1. Connecting sleeve; 101. Connecting groove; 102. Exhaust hole; 103. Sealing ring; 104. Mounting groove; 2. Rubber plug; 3. Elastic clip. DETAILED DESCRIPTION

[0021] 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 the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Example:

[0024] Reference Figures 1-4 , a pipe joint anti-detachment structure, including a connecting sleeve 1, and also including connecting grooves 101 for plugging in pipe fittings, respectively opened at both ends of the connecting sleeve 1, and an exhaust hole 102 connected to the connecting groove 101 is opened in the connecting sleeve 1, and a rubber plug 2 is provided in the outlet of the exhaust hole 102. A limiter for limiting the sliding of the pipe fitting is provided at both ends of the connecting sleeve 1. When in use, by inserting the pipe fitting into the connecting groove 101, since the width of the connecting groove 101 is less than the wall thickness of the pipe fitting, the pipe fitting and the connecting groove 101 are interference connected. During the plugging process, the rubber plug 2 is pulled out from the outlet of the exhaust hole 102. As the pipe fitting is plugged in, the air in the connecting groove 101 can be discharged through the exhaust hole 102. After plugging in place, the rubber plug 2 is pulled out from the outlet of the exhaust hole 102. The rubber plug 2 is reinserted into the exhaust hole 102 to prevent gas from entering the connecting groove 101 from the exhaust hole 102. At this time, a closed negative pressure chamber is formed in the connecting groove 101, which can fix the pipe fitting in the connecting sleeve 1. Moreover, the inner wall and outer wall of one end of the pipe fitting are respectively in contact with the inner wall of the connecting groove 101, which is less likely to deform. Even if the end of the pipe fitting outside the connecting groove 101 is deformed, it will not have a significant impact on the connection effect, which can ensure the reliability of the connection, reduce the possibility of loosening of the connecting sleeve 1 and the pipe fitting, and improve the use effect. When the connecting sleeve 1 needs to be removed, first pull out the rubber plug 2 from the exhaust hole 102, and then the connecting sleeve 1 can be pulled off the pipe fitting. It is easy to assemble and disassemble, has a fixed structure, and is simple in structure.

[0025] During use, by opening connecting grooves 101 at both ends of the connecting sleeve 1, one end of the pipe fitting is inserted into the connecting groove 101, and after being inserted into place, the rubber stopper 2 is reinserted into the exhaust hole 102 to prevent gas from entering the connecting groove 101 from the exhaust hole 102. At this time, a closed negative pressure chamber is formed in the connecting groove 101, which can fix the pipe fitting in the connecting sleeve 1, and the inner wall and outer wall of one end of the pipe fitting are respectively fitted with the inner wall of the connecting groove 101, which is less likely to deform, thereby ensuring the reliability of the connection, reducing the possibility of the connecting sleeve 1 and the pipe fitting loosening, and improving the use effect; by arranging an elastic clip 3 at the mouth of the connecting groove 101, the axial displacement of the pipe fitting can be limited, reducing the possibility of slipping out of the connecting groove 101, and further improving the reliability during use.

[0026] Reference Figure 2 and Figure 3 , sealing rings 103 are fixedly provided on the inner walls on both sides of the connecting groove 101, and the two sets of sealing rings 103 are respectively pressed against the inner wall and outer wall of the pipe fitting, and the sealing ring 103 is close to the opening of the connecting groove 101, and the exhaust hole 102 is connected to the bottom of the connecting groove 101. When in use, by fixing the sealing ring 103 in the connecting groove 101, the sealing effect of the pipe fitting in the connecting groove 101 can be increased, and the adsorption strength of the negative pressure can be further improved.

[0027] Reference Figure 2 and Figure 3 , multiple groups of protrusions are fixedly provided on the inner wall of one side of the connecting groove 101, and the protrusions are provided in two to ten groups, preferably four groups, and the four groups are equidistantly distributed. Grooves corresponding to the protrusions are opened on the inner wall of the other side of the connecting groove 101, and the protrusions and grooves are both annular structures, that is, an annular ring structure and an annular groove structure, and the cross-sections of the protrusions and grooves are both arc-shaped structures, which can avoid scratches on the inner and outer walls of the pipe fittings. When in use, by arranging protrusions and grooves in the connecting groove 101, the adhesion of the inner wall of the connecting groove 101 to the pipe fitting can be improved, thereby improving the fixing strength.

[0028] Reference Figure 1-Figure 3 The top of the rubber stopper 2 is fixedly connected to the connecting sleeve 1 through an elastic rope. A pull rope is fixedly provided on the rubber stopper 2, and the rubber stopper 2 is interference fit with the exhaust hole 102. When the rubber stopper 2 blocks the exhaust hole 102, the gas entering the exhaust hole 102 can be reduced. When in use, the rubber stopper 2 is fixed to the connecting sleeve 1 with an elastic rope to avoid loss of the rubber stopper 2. A pull rope is fixedly provided on the rubber stopper 2 to facilitate pulling the rubber stopper 2 out of the exhaust hole 102, thereby improving the use effect.

[0029] Reference Figure 4The limiting member can be a screw or a pin. Here, we design the limiting member as at least two groups of elastic clips 3. Here, we preferably have two groups. Mounting grooves 104 are provided at both ends of the connecting sleeve 1. One end of the elastic clip 3 is fixedly connected to the corresponding mounting groove 104, and the elastic clip 3 is engaged with the slot of the pipe fitting. When in use, by arranging elastic clips 3 at both ends of the connecting sleeve 1, after the pipe fitting is plugged into place, the middle protruding position of the elastic clip 3 will engage with the slot on the pipe fitting, which can limit the axial displacement of the pipe fitting, reduce the possibility of the pipe fitting slipping out of the connecting groove 101, and improve the use effect.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipe joint anti-slip structure, comprising a connecting sleeve (1), characterized in that: It also includes connecting grooves (101) for plugging in pipe fittings, which are respectively provided at both ends of the connecting sleeve (1), and an exhaust hole (102) communicating with the connecting groove (101) is provided in the connecting sleeve (1), a rubber plug (2) is provided in the outlet of the exhaust hole (102), and both ends of the connecting sleeve (1) are provided with limiters for limiting the sliding of the pipe fittings.

2. The anti-drop structure for a pipe joint according to claim 1, characterized in that: Sealing rings (103) are fixedly provided on the inner walls of both sides of the connecting groove (101), and two groups of sealing rings (103) respectively abut against the inner wall and outer wall of the pipe, and the sealing rings (103) are close to the opening of the connecting groove (101), and the exhaust hole (102) is connected to the bottom of the connecting groove (101).

3. The anti-drop structure for a pipe joint according to claim 1, characterized in that: A plurality of groups of protrusions are fixedly provided on the inner wall of one side of the connection groove (101), and grooves corresponding to the protrusions are opened on the inner wall of the other side of the connection groove (101), and both the protrusions and the grooves are annular structures.

4. The anti-drop structure for a pipe joint according to claim 3, characterized in that: The cross sections of the protrusion and the groove are both arc-shaped structures.

5. The anti-drop structure for a pipe joint according to claim 1, characterized in that: The top of the rubber stopper (2) is fixedly connected to the connecting sleeve (1) via an elastic rope, a draw rope is fixedly provided on the rubber stopper (2), and the rubber stopper (2) is interference-fitted with the exhaust hole (102).

6. The anti-drop structure for a pipe joint according to claim 1, characterized in that: The limiting member comprises at least two groups of elastic clamping plates (3), both ends of the connecting sleeve (1) are provided with mounting grooves (104), one end of the elastic clamping plate (3) is fixedly connected in the corresponding mounting groove (104), and the elastic clamping plate (3) is engaged with the clamping groove of the pipe fitting.

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