CN215568807U

CN215568807U - Pipeline connecting structure of high-pressure cleaning machine

Info

Publication number: CN215568807U
Application number: CN202120926419.5U
Authority: CN
Inventors: 陈浩; 余刚
Original assignee: Suzhou Xiaoke Cleaning Technology Co ltd
Current assignee: Suzhou Xiaoke Cleaning Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-18
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a pipeline connecting structure of a high-pressure cleaning machine, which comprises a first axial limiting structure positioned on a pipeline connecting seat and a second axial limiting structure positioned on an accessory, wherein the first axial limiting structure and the second axial limiting structure are matched to limit the axial relative displacement of the pipeline connecting seat and the accessory, the pipeline connecting seat is provided with a first circumferential limiting structure, the accessory is provided with a second circumferential limiting structure, and the first circumferential limiting structure and the second circumferential limiting structure are matched to limit the circumferential relative displacement of the pipeline connecting seat and the accessory. Therefore, the axial relative displacement and the circumferential relative displacement of the pipeline connecting seat and the accessory are both limited, and compared with the prior art, the pipeline connecting seat and the accessory can be stably connected and are not easy to loosen.

Description

Pipeline connecting structure of high-pressure cleaning machine

Technical Field

The utility model relates to a high-pressure cleaning machine.

Background

The high-pressure cleaning machine comprises a pump body, a pump cover arranged on the top of the pump body, a plunger guide piece arranged on the bottom of the pump body, and an oil cylinder connected with the plunger guide piece, wherein a transmission device in the oil cylinder is driven by a motor. The pump cover is provided with a pipeline connecting seat, such as a water inlet connecting seat, a water outlet connecting seat and an overflow connecting seat, and the pipeline connecting seat is connected with corresponding accessories through a U-shaped pin piece according to the prior art. Taking the water inlet connecting seat as an example, the water inlet connecting seat is provided with a jack of a U-shaped pin piece, the pipe joint is matched into the water inlet connecting seat, and the U-shaped pin piece is radially inserted into the jack and clamped into an annular groove of the pipe joint to play a role in locking. The locking is unstable, and the water inlet connecting seat and the pipe joint are easy to loosen.

SUMMERY OF THE UTILITY MODEL

The technical problems solved by the utility model are as follows: the accessory can be stably connected with the pipeline connecting seat.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a high pressure cleaner pipeline connection structure, including the first axial limit structure who is located the pipeline connecting seat, be located the second axial limit structure on the accessory, first axial limit structure of complex and second axial limit structure, can restrict the axial relative displacement of pipeline connecting seat and accessory, be equipped with first circumferential limit structure on the pipeline connecting seat, be equipped with second circumferential limit structure on the accessory, first circumferential limit structure of complex and second circumferential limit structure, can restrict the circumference relative displacement of pipeline connecting seat and accessory.

First axial limit structure of complex and second axial limit structure can restrict the axial relative displacement of pipeline connecting seat and accessory, nevertheless can not restrict the circumference relative displacement (relative rotary motion) of pipeline connecting seat and accessory, but, at the circumference relative displacement in-process of pipeline connecting seat and accessory, first circumference limit structure and the cooperation of second circumference limit structure restrict the circumference relative displacement of pipeline connecting seat and accessory. So, the axial relative displacement and the circumference relative displacement of pipeline connecting seat and accessory are all restricted, realize accessory and pipeline connecting seat stable connection.

Compared with the prior art, the connecting device can ensure that the fittings and the pipeline connecting seat are stably connected and are not easy to loosen.

The utility model is not limited to the connection of the water inlet connecting seat, the water outlet connecting seat and the overflow connecting seat on the pump cover of the high-pressure cleaning machine with corresponding accessories, but is applicable to all pipeline connections of the high-pressure cleaning machine.

Drawings

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is a schematic view of a combination structure of a pipe connecting seat 10 and an accessory 20 on a pump cover 30 of a high pressure cleaning machine, wherein the pipe connecting seat 10 is specifically a water inlet connecting seat, and the accessory is specifically a pipe joint;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a cross-sectional view of fig. 2.

The symbols in the drawings illustrate that:

10. a pipeline connecting seat; 11. a first convex portion; 12. a first groove; 13. a withdrawal stopping sheet; 130. a ramp structure; 14. an elastic deformation abdicating groove; 15. a first limit end face;

20. an accessory; 21. a second convex portion; 22. a second groove; 23. a backstop block; 24. a second limiting end face; 25. a limiting ring;

30. and (4) a pump cover.

Detailed Description

The utility model provides a high pressure cleaner pipeline connection structure, including the first axial limit structure that is located on pipeline connecting seat 10, be located the second axial limit structure on accessory 20, first axial limit structure of complex and second axial limit structure, can restrict the axial relative displacement of pipeline connecting seat and accessory, be equipped with first circumferential limit structure on the pipeline connecting seat, be equipped with second circumferential limit structure on the accessory, first circumferential limit structure of complex and second circumferential limit structure, can restrict the circumference relative displacement of pipeline connecting seat and accessory.

In actual operation, the first axial limiting structure and the second axial limiting structure are firstly matched, then the accessory 20 is rotated relative to the pipeline connecting seat 10, and the first circumferential limiting structure and the second circumferential limiting structure are matched, so that the axial relative displacement and the circumferential relative displacement of the pipeline connecting seat and the accessory are both limited, and the accessory is stably connected with the pipeline connecting seat.

The pipeline connecting seat 10 includes but is not limited to a water inlet connecting seat, a water outlet connecting seat and an overflow connecting seat on the pump cover 30, and the fitting 20 includes but is not limited to a pipe joint matched with the water inlet connecting seat, a spray head matched with the water outlet connecting seat and an overflow valve matched with the overflow connecting seat.

Referring to fig. 1, 3 and 4, the first axial limiting structure includes a plurality of first protrusions 11 disposed on the inner wall of the pipe connecting seat 10, a first groove 12 is formed between two adjacent first protrusions, the second axial limiting structure includes a plurality of second protrusions 21 disposed on the outer wall of the fitting 20, and a second groove 22 is formed between two adjacent second protrusions. In operation, the fitting 20 is fitted into the pipe coupling seat 10, the second projection 21 axially passes through the first groove 12, correspondingly, the first projection 11 axially passes through the second groove 22, and the second limit end surface 24 of the fitting abuts against the first limit end surface 15 of the pipe coupling seat. Then, the accessory rotates a certain angle relative to the pipeline connecting seat, and the first circumferential limiting structure is matched with the second circumferential limiting structure while the first convex part 11 is axially abutted against the second convex part 21.

Referring to fig. 2 and 3, as an option, the first circumferential limiting structure includes a retaining sheet 13 capable of elastically deforming, the second circumferential limiting structure includes a retaining block 23, when the fitting 20 rotates relative to the pipe connecting seat 10, the retaining block can drive the retaining sheet to elastically deform in the axial direction, after the fitting rotates relative to the pipe connecting seat by a certain angle, that is, after the retaining block 23 crosses the retaining sheet 13, the retaining block abuts against one end of the retaining sheet, and the relative rotation between the pipe connecting seat 10 and the fitting 20 is limited.

Alternatively, two anti-return sheets 13 form a group, and the pipe connecting seat 10 is provided with at least one group of anti-return sheets, and any group of anti-return sheets can be matched with an anti-return block 23. In any group of the anti-return sheets, the two anti-return sheets are arranged oppositely, and a gap is arranged between the two anti-return sheets. The accessory 20 rotates forward relative to the pipeline connecting seat 10, and the retaining block 23 can drive a first retaining piece in the group of retaining pieces to elastically deform and fit into the gap; the fitting 20 rotates in the opposite direction with respect to the pipe connecting seat 10, and the retaining block 23 can drive the second retaining piece of the set of retaining pieces to elastically deform and fit into the gap. After the retaining block 23 is fitted into the gap, the degree of freedom of forward and reverse rotation of the fitting relative to the pipe connecting seat is limited.

Alternatively, a ramp structure 130 is provided at an end of the retaining piece 13 abutting against the retaining block 23, and an elastically deformable abdicating groove 14 is provided between the end and the pipe connecting seat body. When the backstop block acts on the end, the backstop sheet is driven to elastically deform; ramp structure 130 is effective to limit the degree of freedom of forward and reverse rotation of fitting 20 relative to conduit coupler socket 10 after backstop 23 has cleared the end.

Referring to fig. 3 and 4, as an option, the retaining piece 13 is disposed on the end face of the pipe connecting seat 10, the retaining block 23 is disposed on the outer wall of the fitting 20, the outer wall of the fitting is provided with a limiting ring 25, the retaining block is located on the limiting ring, the limiting ring not only has a function of stabilizing the retaining block, but also has a function of limiting the axial relative displacement between the fitting 20 and the pipe connecting seat 10, so that the connection between the fitting and the pipe connecting seat is more stable.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims

1. The utility model provides a high pressure cleaner pipeline connection structure, is including being located first axial limit structure on pipeline connecting seat (10), being located the second axial limit structure on accessory (20), and the axial relative displacement of pipeline connecting seat and accessory can be restricted to first axial limit structure of complex and second axial limit structure, its characterized in that: be equipped with first circumferential limit structure on the pipeline connecting seat, be equipped with second circumferential limit structure on the accessory, the first circumferential limit structure of complex and second circumferential limit structure can restrict the circumference relative displacement of pipeline connecting seat and accessory.

2. The high-pressure washer pipe connection structure as claimed in claim 1, wherein: the first axial limiting structure comprises a plurality of first convex parts (11) arranged on the inner wall of the pipeline connecting seat (10), a first groove (12) is formed between every two adjacent first convex parts, the second axial limiting structure comprises a plurality of second convex parts (21) arranged on the outer wall of the accessory (20), and a second groove (22) is formed between every two adjacent second convex parts; the second convex part can pass through first recess axially, and first convex part can pass through the second recess axially, and after the relative pipeline connecting seat of accessory rotatory certain angle, first convex part can offset with the second convex part axial, and first circumferential limit structure cooperates with second circumferential limit structure.

3. The high-pressure washer piping connection structure as claimed in claim 1 or 2, wherein: first circumferential limit structure is including can taking place elastic deformation's stopping piece (13), and second circumferential limit structure is including stopping piece (23), and when accessory (20) is rotatory relative pipeline connecting seat (10), the stopping piece can order about stopping piece elastic deformation to, after accessory is rotatory certain angle relative pipeline connecting seat, the stopping piece can offset with the one end of stopping the piece.

4. The high-pressure washer pipe connection structure as claimed in claim 3, wherein: two backstop pieces (13) constitute a set, and a set of backstop piece can cooperate with a backstop piece (23), and in a set of backstop piece, two backstop pieces set up relatively, have the clearance between two backstop pieces, and the backstop piece can cooperate in this clearance.

5. The high-pressure washer pipe connection structure as claimed in claim 3, wherein: one end of the retaining sheet (13) abutting against the retaining block (23) is provided with a ramp structure (130), and an elastic deformation abdicating groove (14) is arranged between the end and the pipeline connecting seat body.

6. The high-pressure washer pipe connection structure as claimed in claim 3, wherein: the retaining sheet (13) is arranged on the end face of the pipeline connecting seat (10), and the retaining block (23) is arranged on the outer wall of the accessory (20).