Conical surface ejector pin type vacuum quick connector

Abstract

The utility model provides a conical surface ejector pin type vacuum quick connector, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The conical surface ejector pin type vacuum quick connector comprises a tubular male head and a tubular female head, the female head is used for being fixed to a corresponding support, the male head is used for being connected with a driving piece capable of driving the male head to move horizontally, the male head is right opposite to the female head, and a composite sealing structure is arranged at a port of the male head. A conical surface sealing assembly capable of gradually sealing the lower end of the female head is arranged in the female head, an ejector pin assembly is arranged in the male head, the upper end of the ejector pin assembly extends out of the male head in the initial state, and when the male head abuts against the female head, the composite sealing structure can seal the connecting position of the male head and the female head. And meanwhile, the ejector pin assembly can push the conical surface sealing assembly to conduct the female head. The conical surface ejector pin type vacuum quick connector is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a cone-surface ejector-type vacuum quick connector. Background Art

[0002] With the development of product technology, conventional purely mechanical clamping carriers have been unable to meet process requirements. The industry urgently needs vacuum adsorption carriers to replace traditional clamping carriers. In addition, with the popularity of automated production lines, traditional vacuum pipe joints cannot achieve the function of quickly breaking the vacuum.

[0003] Currently, there are too few types of connectors in the industry that can quickly break the vacuum, and the prices are too high to meet the needs of 3C automatic lines.

[0004] At the same time, the sealing of the female head of the existing quick connector is mainly achieved by a single part, usually in two ways:

[0005] First, the sealing parts are rigid parts, and the sealing performance in the female head is mainly guaranteed by the processing accuracy of the sealing parts.

[0006] Secondly, the sealing parts are flexible parts, and the sealing parts will deform appropriately when sealing, further improving the sealing performance.

[0007] However, the rigid parts in method 1 have rigid contact when opening and closing, which will produce relatively loud noise, and after long-term use, the sealing surface will be excessively worn and its sealing performance will be weakened in a short time.

[0008] Although the flexible parts in the second method improve the sealing performance and do not produce loud noise during use, frequent deformation will result in a relatively short service life.

[0009] Therefore, existing quick connectors cannot meet the dual requirements of stability and sealing. Summary of the Invention

[0010] The purpose of the utility model is to provide a conical ejector type vacuum quick connector with high stability and compact structure in order to solve the above problems in the prior art.

[0011] The purpose of this utility model can be achieved through the following technical solutions:

[0012] A conical ejector pin type vacuum quick connector, comprising a tubular male head and a female head, characterized in that the female head is used to be fixed on a corresponding bracket, the male head is used to be connected to a driving member that can drive it to move in translation, the male head and the female head are directly opposite, the male head port has a composite sealing structure, the female head has a conical sealing component that can gradually seal the lower end of the female head, the male head has an ejector pin assembly, and in the initial state, the upper end of the ejector pin assembly extends out of the male head, and when the male head rests on the female head, the composite sealing structure can seal the connection between the male head and the female head, and at the same time, the ejector pin assembly can push the conical sealing component and make the female head conductive.

[0013] In the above-mentioned conical ejector pin type vacuum quick connector, the conical surface sealing assembly includes a sealing edge and a sealing cone protruding annularly at the female port. The female is also provided with a pre-tightening spring 1. The two ends of the above-mentioned pre-tightening spring 1 act on the female and the sealing cone respectively. Under the elastic force of the pre-tightening spring 1, the lower part of the above-mentioned sealing cone has a tendency to rest against the sealing edge and form a seal.

[0014] In the above-mentioned conical ejector type vacuum quick connector, the sealing cone includes a cylindrical body and a conical sealing cylinder. The lower end of the body has a rod-shaped connecting section. The sealing cylinder is sleeved on the connecting section and the two are tightly fitted and connected.

[0015] In the above-mentioned conical ejector pin type vacuum quick connector, the lower end of the connecting section has an annular concave positioning groove, and the inner side of the sealing cylinder has an annular protruding connecting edge, which matches the positioning groove and is embedded in the positioning groove.

[0016] In the above-mentioned conical ejector-type vacuum quick connector, the sealing cylinder is made of a flexible material, and the upper end of the sealing cylinder abuts against the lower end of the body.

[0017] In the above-mentioned conical ejector-type vacuum quick connector, the sealing edge is arranged obliquely, and the inner side of the sealing edge contacts the outer side surface of the sealing cylinder.

[0018] In the above-mentioned conical ejector type vacuum quick connector, the inclination angle of the sealing edge is 30-50 degrees, and the inclination direction and inclination angle of the outer side of the sealing cylinder are the same as those of the sealing edge.

[0019] In the above-mentioned conical thimble type vacuum quick connector, the composite sealing structure includes a pre-tightening spring 2, a sealing cylinder, a sealing ring 1 and a sealing ring 2. The sealing cylinder is located in the male head, the above-mentioned pre-tightening spring 2 is located in the male head and the two ends of the pre-tightening spring 2 act on the sealing cylinder and the male head respectively. Under the elastic force of the pre-tightening spring 2, the sealing cylinder has a tendency to extend out of the male head. The above-mentioned sealing ring 1 is connected to the upper end of the male head, and the above-mentioned sealing ring 2 is connected to the upper end of the sealing cylinder.

[0020] In the above-mentioned conical ejector pin type vacuum quick connector, the inner port on the upper end of the male head has an annular protruding shoulder, and the outer side of the lower end of the sealing tube has an annular protruding retaining edge, and under the elastic force of the preload spring 2, the retaining edge has a tendency to rest against the shoulder.

[0021] In the above-mentioned conical ejector pin type vacuum quick connector, the ejector pin assembly includes a bottom cover and a needle rod. The bottom cover is embedded in the lower end of the male head and the two are threadedly connected. The lower end of the needle rod is connected to the bottom cover.

[0022] In the above-mentioned conical ejector pin type vacuum quick connector, the center of the bottom cover has a through hole that penetrates through the bottom cover and is connected to the inner cavity of the male head. The lower end of the needle rod has a disc-shaped bottom plate, which is in contact with the bottom cover surface and has an air intake channel in the bottom plate that connects the through hole of the bottom cover with the inner cavity of the male head.

[0023] Compared with the prior art, the tapered ejector type vacuum quick connector has the male and female heads separated in the initial state. At this time, the tapered sealing assembly in the female head seals the female head, and the female head can stably maintain a closed state.

[0024] Once the male connector rests against the female connector under external force, the ejector pin mechanism opens the conical seal assembly. At this point, the male and female connectors are stably connected, and the entire quick connector can be quickly closed or opened, with high stability.

[0025] At the same time, the conical sealing component is located in the female head, and the ejector pin component is located in the male head, which are independent of each other, not only further improving its stability, but also making the structure relatively compact and having high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the conical ejector type vacuum quick connector when it is in conduction.

[0027] Figure 2 It is a structural schematic diagram of the conical ejector type vacuum quick connector when it is closed.

[0028] Figure 3 It is a three-dimensional structural diagram of the conical ejector type vacuum quick connector.

[0029] In the figure, 1, male head; 1a, boss; 2, female head; 2a, sealing edge; 3, sealing cone; 3a, connecting seat; 3b, connecting section; 3b1, positioning groove; 3c, sealing cylinder; 3c1, connecting edge; 3d, main body; 4, preload spring 1; 6, preload spring 2; 7, sealing cylinder; 7a, retaining edge; 8, sealing ring 1; 9, sealing ring 2; 10, bottom cover; 11, needle rod; 11a, chassis; 11a1, air intake channel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1 and Figure 2 and Figure 3 As shown, the conical ejector type vacuum quick connector includes a tubular male head 1 and a female head 2, the female head 2 is used to be fixed on the corresponding bracket, the male head 1 is used to be connected to a driving member that can drive it to move in translation, the male head 1 is directly opposite to the female head 2, and the port of the male head 1 has a composite sealing structure, and the female head 2 has a conical sealing component that can gradually seal the lower end of the female head 2. The male head 1 has an ejector assembly. In the initial state, the upper end of the ejector assembly extends out of the male head 1. When the male head 1 is against the female head 2, the composite sealing structure can seal the connection between the male head 1 and the female head 2. At the same time, the ejector assembly can push the conical sealing component and make the female head 2 conductive.

[0034] The conical surface sealing assembly includes a sealing edge 2a and a sealing cone 3 that are annularly protruding at the port of the female head 2. The female head 2 also has a preload spring 4. The two ends of the preload spring 4 act on the female head 2 and the sealing cone 3 respectively. Under the elastic force of the preload spring 4, the lower part of the sealing cone 3 has a tendency to rest against the sealing edge 2a and form a seal.

[0035] The sealing cone 3 includes a cylindrical body 3d and a conical sealing cylinder 3c. The lower end of the body 3d has a rod-shaped connecting section 3b. The sealing cylinder 7 is sleeved on the connecting section 3b and the two are tightly fitted and connected.

[0036] In the initial state, the sealing cylinder 7 on the sealing cone 3 maintains surface contact with the sealing edge 2a under the elastic force of the preloaded spring 1 4. At this time, the female connector 2 is in a closed state.

[0037] When male connector 1 rests against female connector 2 under external force, the composite sealing structure creates a stable seal at the joint between them. Simultaneously, the ejector pin assembly pushes sealing cone 3 upward, causing sealing cylinder 7 on the cone 3 to disengage from sealing edge 2a. At this point, female connector 2 is conductive, and since male connector 1 is also conductive to female connector 2, the entire quick connector is in a conductive state.

[0038] Once the male head 1 is separated from the female head 2, the sealing cone 3 is reset and the female head 2 is closed again.

[0039] In this embodiment, the upper end of the main body has a recessed connecting seat 3a, and the lower end of the preload spring 1 4 is embedded in the connecting seat 3a. This structure can ensure that the preload spring 1 4 is stably connected to the upper part of the main body 3d.

[0040] The lower end of the connecting section 3b has an annular concave positioning groove 3b1, and the inner side of the sealing tube 7 has an annular protruding connecting edge 3c1, which matches the positioning groove 3b1 and is embedded in the positioning groove 3b1.

[0041] After the connecting edge 3c1 is embedded in the positioning groove 3b1, the sealing cylinder 7 and the connecting section 3b can be stably connected together. In other words, the sealing cylinder 7 is stably connected to the lower part of the sealing cone 3.

[0042] The sealing cylinder 7 is made of a flexible material, and the upper end of the sealing cylinder 7 abuts against the lower end of the body 3d.

[0043] In this embodiment, the sealing cylinder 3c is made of flexible rubber material.

[0044] The sealing edge 2a is arranged obliquely, and the inner side of the sealing edge 2a contacts the outer side surface of the sealing cylinder 3c.

[0045] Such a structure enables the sealing cylinder 3c to be in stable surface contact with the sealing edge 2a.

[0046] The inclination angle of the sealing edge 2a is 30 degrees. According to actual conditions, the inclination angle of the sealing edge 2a can be 40 degrees or 50 degrees.

[0047] The inclination direction and inclination angle of the outer side of the sealing cylinder 7 are the same as the inclination direction and inclination angle of the sealing edge 2a.

[0048] The composite sealing structure includes a pre-tightening spring 2 6, a sealing tube 7, a sealing ring 1 8 and a sealing ring 2 9. The sealing tube 7 is located in the male head 1. The pre-tightening spring 2 6 is located in the male head 1 and the two ends of the pre-tightening spring 2 6 act on the sealing tube 7 and the male head 1 respectively. Under the elastic force of the pre-tightening spring 2 6, the sealing tube 7 has a tendency to extend out of the male head 1. The sealing ring 1 8 is connected to the upper port of the male head 1, and the sealing ring 2 9 is connected to the upper port of the sealing tube 7.

[0049] In the initial state, the upper end of the sealing cylinder 7 extends out of the male head 1 under the elastic force of the preloaded spring 2 6.

[0050] When the male connector 1 and the female connector 2 just come into contact, the upper end of the sealing cylinder 7 contacts the female connector 2 to form a seal. As the male connector 1 continues to move, the preload spring 2 6 is compressed, and the sealing cylinder 7 gradually retracts into the male connector 1. When the upper end of the sealing cylinder 7 is flush with the upper end of the male connector 1, the upper end of the male connector 1 contacts the lower end of the female connector 2, and a seal is formed.

[0051] Of course, the first sealing is mainly achieved by the sealing ring 1 8. The second sealing is achieved by the sealing ring 1 8 and the sealing ring 2 9 together.

[0052] The inner port of the upper end of the male plug 1 has an annular protruding shoulder 1a, and the outer side of the lower end of the sealing tube 7 has an annular protruding retaining edge 7a. Under the elastic force of the preload spring 2 6, the retaining edge 7a has a tendency to rest against the shoulder 1a.

[0053] After the retaining edge 7a abuts against the convex shoulder 1a, the sealing cylinder 7 cannot move further. The above structure limits the position of the sealing cylinder 7, ensuring that the sealing cylinder 7 moves within the set stroke range.

[0054] The ejector assembly includes a bottom cover 10 and a needle rod 11 . The bottom cover 10 is embedded in the lower end of the male head 1 and the two are threadedly connected. The lower end of the needle rod 11 is connected to the bottom cover 10 .

[0055] The center of the bottom cover 10 has a through hole 10 that is connected to the inner cavity of the male head 1. The lower end of the needle rod 11 has a disc-shaped bottom plate 11a. The bottom plate 11a is in surface contact with the bottom cover 10 and has an air intake channel 11a1 inside the bottom plate 11a that connects the through hole of the bottom cover 10 with the inner cavity of the male head 1.

[0056] The bottom cover 10 can facilitate the assembly and disassembly of the ejector pin with the male connector 1. At the same time, the chassis 11a at the lower end of the ejector pin can stably connect the lower end of the ejector pin to the bottom cover 10.

[0057] In the conical ejector pin type vacuum quick connector, the male connector 1 is separated from the female connector 2 in the initial state. At this time, the flat sealing structure inside the female connector 2 seals the female connector 2, and the female connector 2 can stably maintain a closed state.

[0058] Once the male connector 1 is pressed against the female connector 2 under external force, the ejector mechanism opens the flat sealing structure. At this point, the male connector 1 and the female connector 2 are stably connected, and the entire quick connector can be quickly closed or opened, with high stability.

[0059] At the same time, the flat sealing structure is located in the female head 2, and the ejector pin assembly is located in the male head 1, which are independent of each other, not only further improving their stability, but also making the structure more compact and having high practical value.

[0060] In this embodiment, the needle rod 11 is conical, and the upper end of the needle rod 11 is a small-sized end. Such a structure not only reduces the material consumption of the needle rod 11, but also enables the needle rod 11 to stably extend out of the sealing cylinder with a relatively small inner diameter.

[0061] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. A conical thimble type vacuum quick connector, comprising a tubular male connector (1) and a female connector (2), characterized in that: The female head (2) is used to be fixed on the corresponding bracket, and the male head (1) is used to be connected to a driving member that can drive it to move horizontally. The male head (1) is directly opposite to the female head (2). The male head (1) has a composite sealing structure at its port. The female head (2) has a conical sealing component that can gradually seal the lower end of the female head (2). The male head (1) has a pin assembly. In the initial state, the upper end of the pin assembly extends out of the male head (1). When the male head (1) abuts against the female head (2), the composite sealing structure can seal the connection between the male head (1) and the female head (2). At the same time, the pin assembly can push the conical sealing component and make the female head (2) conductive.

2. The conical ejector type vacuum quick connector according to claim 1, characterized in that: The conical surface sealing assembly comprises a sealing edge (2a) protruding in an annular manner at the end of the female head (2) and a sealing cone (3). The female head (2) is also provided with a preload spring (4). The two ends of the preload spring (4) act on the female head (2) and the sealing cone (3) respectively. Under the elastic force of the preload spring (4), the lower part of the sealing cone (3) has a tendency to abut against the sealing edge (2a) and form a seal.

3. The conical ejector type vacuum quick connector according to claim 2, characterized in that: The sealing cone (3) comprises a cylindrical body (3d) and a conical sealing cylinder (3c); the lower end of the body (3d) has a rod-shaped connecting section (3b); the sealing cylinder (3c) is sleeved on the connecting section (3b) and the two are tightly fitted and connected.

4. The conical ejector type vacuum quick connector according to claim 3, characterized in that: The lower end of the connecting section (3b) has an annular concave positioning groove (3b1), and the inner side of the sealing cylinder (3c) has an annular protruding connecting edge (3c1), and the connecting edge (3c1) matches the positioning groove (3b1) and is embedded in the positioning groove (3b1).

5. The conical ejector type vacuum quick connector according to claim 4, characterized in that: The sealing cylinder (7) is made of a flexible material, and the upper end of the sealing cylinder (7) abuts against the lower end of the body (3d).

6. The conical ejector pin type vacuum quick connector according to claim 5, characterized in that: The sealing edge (2a) is arranged obliquely, and the inner side of the sealing edge (2a) contacts the outer side surface of the sealing cylinder (7).

7. The conical ejector type vacuum quick connector according to claim 6, characterized in that: The inclination angle of the sealing edge (2a) is 30-50 degrees, and the inclination direction and inclination angle of the outer side of the sealing cylinder (7) are the same as the inclination direction and inclination angle of the sealing edge (2a).

8. The conical ejector type vacuum quick connector according to claim 7, characterized in that: The composite sealing structure comprises a second preload spring (6), a sealing cylinder (7), a first sealing ring (8) and a second sealing ring (9), wherein the sealing cylinder (7) is located in the male head (1), the second preload spring (6) is located in the male head (1) and the two ends of the second preload spring (6) act on the sealing cylinder (7) and the male head (1) respectively, and under the elastic force of the second preload spring (6), the sealing cylinder (7) has a tendency to extend out of the male head (1), the first sealing ring (8) is connected to the upper end of the male head (1), and the second sealing ring (9) is connected to the upper end of the sealing cylinder (7).

9. The conical ejector pin type vacuum quick connector according to claim 8, characterized in that: The inner port of the upper end of the male head (1) has an annular protruding shoulder (1a), and the outer side of the lower end of the sealing cylinder (7) has an annular protruding retaining edge (7a), and under the elastic force of the second preload spring (6), the retaining edge (7a) has a tendency to abut against the shoulder (1a).

10. The conical ejector pin type vacuum quick connector according to claim 9, characterized in that: The ejector assembly comprises a bottom cover (10) and a needle rod (11), wherein the bottom cover (10) is embedded in the lower end of the male head (1) and the two are threadedly connected, and the lower end of the needle rod (11) is connected to the bottom cover (11a).

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