CN107524873B

CN107524873B - Filling machine and pipeline connection structure

Info

Publication number: CN107524873B
Application number: CN201710764120.2A
Authority: CN
Inventors: 周国健; 张聪敏; 宋俊杰
Original assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Current assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2023-06-20
Anticipated expiration: 2037-08-30
Also published as: CN107524873A

Abstract

The invention relates to a filling machine and a pipeline connecting structure, wherein the pipeline connecting structure is used for connecting a first pipeline and a second pipeline and comprises an eccentric sleeve, an inner connecting pipe, an eccentric blocking cover and a spring, wherein the eccentric sleeve is fixed at one end of the first pipeline, the spring is sleeved on the outer wall of the first connecting end, one end of the spring abuts against a flange, the eccentric blocking cover is sleeved outside the eccentric sleeve from the first connecting end, under the condition that a convex tooth is opposite to a notch, the convex tooth passes through the notch, the spring is compressed, the eccentric blocking cover is rotated to enable the convex tooth to be clamped into the first groove, the first connecting end is concentric with the eccentric blocking cover, the inner connecting pipe is fixed at one end of the second pipeline, the inner connecting pipe is stretched into the first connecting end to a preset position, the eccentric blocking cover is rotated again to enable the eccentric blocking cover to be clamped into the second groove, the first connecting end and the eccentric blocking cover are in an eccentric state, and the step surface of a blocking ring is prevented from being separated from the inner connecting pipe and the eccentric sleeve. The corner with no protruding is exposed, and the purpose of saving the operation space can be realized by realizing tool-free operation.

Description

Filling machine and pipeline connection structure

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a filling machine and a pipeline connection structure.

Background

In the past, the filling machine is a solid rear shield of the beverage market, and especially, people in the modern market have increasingly improved commodity quality requirements, market demands are continuously expanded, and enterprises have requirements on efficient automatic production, so that the filling machine becomes hot-hand filling equipment. In addition, in recent years, the improvement of the scientific and technical level, the rapid development of the domestic filling industry, the improvement of the technical level, the equipment performance, the quality and the like, and the improvement plays an important role in supporting the high-efficiency and safe production of enterprises.

Filling machines often require plumbing to enable transport delivery of materials. The pipe connection of the traditional filling machine is usually a single pipe, the pipe connection is required to be assembled on site by an assembler, the efficiency is low, and the pipe is easy to crack when being pulled by changing stress due to the fact that the single pipe does not have expansion allowance, and materials are leaked, so that the single pipe is required to be designed into two sections of pipes which are connected with each other and have expansion allowance.

The prior art of the interconnecting structure of two sections of pipelines is designed with a clamping piece radial clamping mode and a radial bolt mode, and the defects of the connecting structure are that: firstly, the corners of the protruding parts are scratched to scratch the body of a worker; secondly, the radial mounting structure and the side mounting tool require a large operation space around the pipe, and are difficult to be applied to small-pitch and miniaturized machines. Thirdly, because the side wall of the connecting pipeline is provided with a notch, the sealing element is easy to scratch and damage during installation.

Disclosure of Invention

Accordingly, there is a need for a filling machine and a pipe connection structure that can save operating space without exposing protruding corners of parts, without tool operation, and without scratching the sealing member.

A pipe connection structure for connecting a first pipe with a second pipe, the pipe connection structure comprising:

the eccentric sleeve is used for being fixed at one end of the first pipeline and comprises a first connecting end, the first connecting end is of an eccentric tubular structure, a flange is formed on the outer periphery of the first connecting end in a protruding mode, a gap, a first groove and a second groove which are mutually spaced are formed in the flange in a protruding mode, the gap axially penetrates through the flange, and the first groove and the second groove radially penetrate through the flange and are opened towards the first pipeline;

the inner connecting pipe is used for being fixed at one end of the second pipeline, a step surface is formed on the inner connecting pipe, and the outer diameter of the inner connecting pipe is smaller than or equal to the inner diameter of the first connecting end;

the eccentric baffle cover is rotatably sleeved outside the first connecting end, the inner wall of one end of the eccentric baffle cover inwards protrudes to form convex teeth, the inner wall of the other end inwards protrudes to form a baffle ring, and the baffle ring can prop against the end face of the first connecting end; and

And the spring is positioned between the outer wall of the first connecting end and the inner wall of the eccentric blocking cover, one end of the spring is propped against the flange, and the other end of the spring is propped against the eccentric blocking cover.

In one embodiment, the eccentric sleeve further comprises a first fixing end, the first fixing end and the first connecting end are integrally formed, and the first fixing end is used for being fixed at one end of the first pipeline.

In one embodiment, the first fixing end includes a large end and a small end, the large end is larger than the small end in size, the large end is connected with the first connecting end, and the small end is used for being fixed at one end of the first pipeline.

In one embodiment, the first fixing end is a conical structure with a large-diameter end and a small-diameter end, the diameter of the large-diameter end is larger than that of the small-diameter end, the large-diameter end is connected with the first connecting end, and the small-diameter end is fixed at one end of the first pipeline.

In one embodiment, a seal is further provided between the inner tube and the first connection end.

In one embodiment, the outer wall of the inner connecting pipe is provided with a mounting groove, and the sealing element is positioned in the mounting groove; or alternatively

And the inner wall of the first connecting end is provided with a mounting groove, and the sealing element is positioned in the mounting groove.

In one embodiment, the inner connecting tube includes a second fixed end and a second connecting end, and the outer diameter of the second connecting end is larger than the outer diameter of the second fixed end to form the step surface.

In one embodiment, the inner wall of the eccentric blocking cover is provided with a containing groove, and the spring is contained in the containing groove.

In one embodiment, the notch is located between the first groove and the second groove, a side wall of the notch, which is close to the first groove, is a first side wall, a side wall of the notch, which is close to the second groove, is a second side wall, and the length of the first side wall along the axial direction is smaller than the length of the second side wall along the axial direction.

A filling machine, comprising:

the liquid filling barrel is used for storing liquid to be filled;

the first pipeline is communicated with the liquid filling barrel;

the pipe connection structure according to any one of the above claims, wherein the eccentric sleeve is fixed to one end of the first pipe;

the second pipeline is communicated with the filling valve, and the inner connecting pipe is fixed at one end of the second pipeline.

Above-mentioned liquid filling machine and pipeline connection structure have following advantage at least:

during installation, the eccentric sleeve is fixed at one end of the first pipeline, the spring is sleeved on the outer wall of the first connecting end, one end of the spring is abutted against the flange, the eccentric blocking cover is sleeved outside the eccentric sleeve from the first connecting end, the convex teeth can penetrate through the notch under the condition that the convex teeth are opposite to the notch, the spring is compressed at the moment, then the eccentric blocking cover is rotated to enable the convex teeth to be clamped into the first groove, at the moment, the first connecting end is concentric with the eccentric blocking cover, the inner connecting pipe is fixed at one end of the second pipeline, then the inner connecting pipe gradually stretches into the first connecting end to a preset position, and then the eccentric blocking cover is rotated again to enable the eccentric blocking cover to be clamped into the second groove, at the moment, the first connecting end and the eccentric blocking cover are in an eccentric state, the blocking ring blocks the step surface, and the inner connecting pipe is prevented from being separated from the eccentric sleeve. When the eccentric blocking cover is detached, the inner connecting pipe can be detached only by rotating the eccentric blocking cover to a state that the convex teeth are clamped in the first grooves, so that the inner connecting pipe is separated from the eccentric sleeve. Therefore, the structure has no exposed protruding corners, tool-free operation can be realized to achieve the purpose of saving operation space, the side wall of the connecting pipeline is not provided with a notch, and the sealing element is not scratched and damaged during installation.

Drawings

FIG. 1 is a schematic diagram of a pipe connection structure for connecting a first pipe and a second pipe according to an embodiment;

FIG. 2 is a perspective cross-sectional view of FIG. 1;

FIG. 3 is a plan cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of the eccentric sleeve of FIG. 2;

FIG. 5 is a schematic view of the eccentric cover of FIG. 2;

FIG. 6 is a view in the direction A of FIG. 3;

FIG. 7 is a view from B of FIG. 3 with the nipple and eccentric sleeve in a loose condition;

fig. 8 is a view from the direction B of fig. 3, the nipple being in a locked condition with the eccentric sleeve.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The filling machine in one embodiment includes a filling barrel, a first pipe 10 (see fig. 1), a pipe connection structure 20, a second pipe 30, and a filling valve, wherein the filling barrel is used for storing a liquid to be filled, the first pipe 10 is communicated with the filling barrel, the second pipe 30 is communicated with the filling valve, and the pipe connection structure 20 is used for connecting and communicating the first pipe 10 and the second pipe 30.

Referring to fig. 1 to 3, the pipe connection structure 20 in an embodiment includes an eccentric sleeve 100, an inner adapter 200, an eccentric blocking cover 300 and a spring 400, wherein the eccentric sleeve 100 is fixed at one end of the first pipe 10, and the inner adapter 200 is fixed at one end of the second pipe 30.

Referring to fig. 4, the eccentric sleeve 100 includes a first fixing end 110 and a first connecting end 120, the first fixing end 110 and the first connecting end 120 are integrally formed, and the first fixing end 110 is fixed at one end of the first pipe 10. For example, the first fixing end 110 may be fixed to one end of the first pipe 10 by welding. Of course, in other embodiments, the first fixing end 110 may be fixed to one end of the first pipe 10 by glue or other means. The first fixing end 110 may be fixedly connected to the first connecting end 120 by welding or glue. The first fixing end 110 may be omitted and one end of the first connection end 120 may be directly fixed to one end of the first pipe 10.

Specifically, in the present embodiment, the first fixing end 110 has a conical structure having a large diameter end 111 and a small diameter end 112, the diameter of the large diameter end 111 is larger than that of the small diameter end 112, the large diameter end 111 is connected to the first connecting end 120, and the small diameter end 112 is fixed to one end of the first pipe 10. The outer circumferential surface of the first fixing end 110 is arc-shaped, so that the operator is prevented from being scratched.

Of course, in other embodiments, the first fixing end may also be a stepped cylindrical structure. Specifically, the first fixed end comprises a large end and a small end, the size of the large end is larger than that of the small end, the large end is connected with the first connecting end, and the small end is used for being fixed at one end of the first pipeline.

The first connecting end 120 is an eccentric tubular structure. That is, the center of the inner circle of the first connection end 120 is not concentric with the center of the outer circle. The wall thickness of the first connecting end 120 is larger on one side and smaller on the other side. The outer periphery of the first connecting end 120 protrudes to form a flange 130, and the flange 130 is provided with a gap 131, a first groove 132 and a second groove 133 which are spaced from each other. The notch 131 extends axially through the flange 130 and radially through the flange 130. The first groove 132 and the second groove 133 penetrate the flange 130 radially, but do not penetrate the flange 130 axially, and the openings of the first groove 132 and the second groove 133 face the direction of the first pipe 10.

The nipple 200 is adapted to be secured to one end of the second conduit 30. The inner nipple 200 is formed with a stepped surface 200a, and the outer diameter of the inner nipple 200 is smaller than or equal to the inner diameter of the first connection end 120, so that the inner nipple 200 can be inserted into the first connection end 120. Specifically, the inner adapter 200 includes a second fixed end 210 and a second connecting end 220, and the outer diameter of the second connecting end 220 is larger than the outer diameter of the second fixed end 210 to form a step surface 200a. Of course, in other embodiments, the step surface 200a may also be formed by forming a radially outward flange on the outer periphery of the nipple 200.

A seal 500 is further provided between the nipple 200 and the eccentric sleeve 100, and the seal 500 serves to increase sealability between the nipple 200 and the eccentric sleeve 100. Specifically, in the present embodiment, the outer wall of the inner adapter tube 200 is provided with a mounting groove 230, and the sealing member 500 is positioned in the mounting groove 230. Of course, in other embodiments, the mounting groove 230 may be formed on the inner wall of the first connecting end 120, and the sealing member 500 may be located in the mounting groove 230.

Referring to fig. 5, the eccentric blocking cover 300 is rotatably sleeved outside the first connecting end 120. The center of the inner circle of the eccentric flap 300 is not concentric with the center of the outer circle. Resulting in a greater wall thickness on one side of the eccentric flap 300 and a smaller wall thickness on the other side. The inner wall of one end of the eccentric baffle cover 300 is inwardly protruded to form a convex tooth 310, and the inner wall of the other end is inwardly protruded to form a baffle ring 320, and the baffle ring 320 can be abutted against the end surface of the first connection end 120. The eccentric blocking cover 300 is sleeved outside the eccentric sleeve 100 from the first connecting end 120, and with the continuous sleeving of the eccentric blocking cover 300, the convex teeth 310 can pass through the gap 131 under the condition that the convex teeth 310 are opposite to the gap 131.

The spring 400 is located between the outer wall of the first connecting end 120 and the inner wall of the eccentric blocking cover 300, and one end of the spring 400 abuts against the flange 130, and the other end abuts against the eccentric blocking cover 300. Specifically, in the present embodiment, the inner wall of the eccentric cover 300 is provided with a receiving groove 330, and the spring 400 is received in the receiving groove 330. After the teeth 310 pass through the notch 131, the eccentric cover 300 is rotated, the teeth 310 are clamped on the flange 130, and the spring 400 is compressed.

In the present embodiment, the number of the notches 131 is two, and the two notches 131 are symmetrically arranged. The number of the first grooves 132 is also two, and the two first grooves 132 are symmetrically arranged. The number of the second grooves 133 is also two, and the two second grooves 133 are symmetrically arranged.

The notch 131 on each side is located between the first groove 132 and the second groove 133. The sidewall of the gap 131 near the first groove 132 is a first sidewall, the sidewall of the gap 131 near the second groove 133 is a second sidewall, and the axial length of the first sidewall is smaller than that of the second sidewall, so as to prevent the protruding teeth 310 from falling out of the gap 131 when the eccentric baffle cover 300 rotates.

The specific working principle of the above pipe connection structure 20 is as follows:

when the eccentric sleeve 100 is installed, the first fixed end 110 of the eccentric sleeve 100 is fixed at one end of the first pipeline 10, and the spring 400 is sleeved on the outer wall of the first connecting end 120 and one end abuts against the flange 130. The eccentric cover 300 is sleeved outside the sleeve from the first connecting end 120, and the convex teeth 310 can pass through the gap 131 under the condition that the convex teeth 310 are opposite to the gap 131, so that the spring 400 is compressed. Then, the eccentric blocking cover 300 is rotated (for example, 30 degrees) along the notch 131 toward the first recess 132, so that the protruding teeth 310 are clamped into the first recess 132, and the first connecting end 120 and the eccentric blocking cover 300 are concentric (refer to fig. 6 and 7), and the eccentric sleeve 100 and the inner adapter 200 are in a loose state.

The inner adapter tube 200 is fixed to one end of the second pipe 30, then the inner adapter tube 200 is gradually extended into the first connection end 120 until reaching a predetermined position, and then the eccentric blocking cover 300 is rotated again, and rotated (for example, 120 degrees) in a direction from the first groove 132 to the second groove 133, so that the eccentric blocking cover 300 is clamped into the second groove 133, at this time, the first connection end 120 and the eccentric blocking cover 300 are in an eccentric state (refer to fig. 8), the blocking ring 320 blocks the step surface 200a, and the eccentric sleeve 100 and the inner adapter tube 200 are in a locking state, so that the inner adapter tube 200 is prevented from being separated from the eccentric sleeve 100.

When the eccentric blocking cover 300 is detached, the inner connecting pipe 200 can be detached only by rotating the eccentric blocking cover 300 from the second groove 133 to the direction of the first groove 132, so that the convex teeth 310 are clamped into the first groove 132, and the inner connecting pipe 200 is separated from the eccentric sleeve 100. When the eccentric blocking cover 300 needs to be removed, the eccentric blocking cover 300 is moved along the direction of the first pipe 10, the height of the convex teeth 310 in the axial direction is greater than the length of the second side wall in the axial direction, and then the eccentric blocking cover 300 is rotated, so that the convex teeth 310 are opposite to the notch 131, and the eccentric blocking cover 300 is separated from the eccentric sleeve 100 under the restoring force of the spring 400.

The pipe connection structure 20 can be operated by hand without tools through the eccentric sleeve 100, the inner connecting pipe 200, the eccentric blocking cover 300 and the spring 400, thereby saving the operation space and being applicable to small-pitch and miniaturized machines. And the exposed protruding corners are not formed, so that the personal safety of operators can be protected. In addition, in the structure, the sealing element 500 is not scratched and damaged, so that the sealing element 500 can be prevented from being damaged, the sealing performance is further improved, the side wall of the connecting pipeline is not provided with a notch, and the sealing element is not scratched and damaged during installation.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A pipe connection structure for connecting a first pipe with a second pipe, the pipe connection structure comprising:

the eccentric sleeve is used for being fixed at one end of the first pipeline and comprises a first connecting end, the first connecting end is of an eccentric tubular structure, a flange is formed on the outer periphery of the first connecting end in a protruding mode, a gap, a first groove and a second groove which are mutually spaced are formed in the flange in a protruding mode, the gap axially penetrates through the flange, the first groove and the second groove radially penetrate through the flange and are opened towards the first pipeline, the gap is located between the first groove and the second groove, the side wall, close to the first groove, of the gap is a first side wall, the side wall, close to the second groove, of the gap is a second side wall, and the length of the first side wall in the axial direction is smaller than that of the second side wall in the axial direction;

the eccentric blocking cover is rotatably sleeved outside the first connecting end, the inner wall of one end of the eccentric blocking cover inwards protrudes to form a convex tooth, the inner wall of the other end inwards protrudes to form a blocking ring, the blocking ring can prop against the end face of the first connecting end, when the convex tooth is clamped into the first groove, the first connecting end is concentric with the eccentric blocking cover, so that the eccentric sleeve and the inner connecting tube are in a loose state, and when the convex tooth is clamped into the second groove, the first connecting end and the eccentric blocking cover are in an eccentric state, so that the blocking ring blocks the step surface to limit the inner connecting tube from being separated from the eccentric sleeve; and

2. The pipe connection structure of claim 1, wherein the eccentric sleeve further comprises a first fixed end integrally formed with the first connection end, the first fixed end being adapted to be secured to an end of the first pipe.

3. The pipe connecting structure according to claim 2, wherein an outer peripheral surface of the first fixed end is arc-shaped.

4. The pipe connecting structure according to claim 2, wherein the first fixing end includes a large end and a small end, the large end having a size larger than that of the small end, the large end being connected to the first connecting end, the small end being for fixing to one end of the first pipe.

5. The pipe connecting structure according to claim 2, wherein the first fixed end is a conical structure having a large diameter end and a small diameter end, the large diameter end has a larger diameter than the small diameter end, the large diameter end is connected to the first connecting end, and the small diameter end is fixed to one end of the first pipe.

6. The pipe connection according to claim 1, wherein a seal is further provided between the inner tube and the first connection end.

7. The pipe connecting structure according to claim 6, wherein an installation groove is formed in the outer wall of the inner connecting pipe, and the sealing element is located in the installation groove; or alternatively

8. The pipe connecting structure according to claim 1, wherein the inner joint pipe includes a second fixed end and a second connecting end, an outer diameter of the second connecting end being larger than an outer diameter of the second fixed end to form the step surface.

9. The pipe connection structure according to claim 1, wherein the inner wall of the eccentric cover is provided with a receiving groove, and the spring is received in the receiving groove.

10. A filling machine, comprising:

the liquid filling barrel is used for storing liquid to be filled;

the first pipeline is communicated with the liquid filling barrel;

the pipe connecting structure according to any one of claims 1 to 9, wherein the eccentric sleeve is fixed to one end of the first pipe;