Clamping and pressing type connecting structure for connecting pipes

Abstract

The utility model provides a connecting pipe clamping and pressing type connecting structure which comprises a connecting sleeve, a first connecting pipe fitting and a second connecting pipe fitting, a baffle ring is fixedly connected to the middle of the interior of the first connecting pipe fitting, and the ends, close to each other, of the first connecting pipe fitting and the second connecting pipe fitting are inserted into the connecting sleeve. The part, located in the connecting sleeve, of the first connecting pipe fitting and the part, located in the connecting sleeve, of the second connecting pipe fitting are each provided with a limiting circular groove. When the first connecting pipe fitting and the second connecting pipe fitting are installed, the first connecting pipe fitting and the second connecting pipe fitting only need to abut against the interior of the connecting sleeve, then the rotary knob is screwed in the forward direction, and the first connecting pipe fitting and the second connecting pipe fitting can be installed and fixed at the same time; during maintenance, the first connecting pipe fitting and the second connecting pipe fitting can be unfixed only by reversely screwing the knob, and the first connecting pipe fitting and the second connecting pipe fitting can be detached for maintenance, so that the mounting and maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe connection, and in particular relates to a compression type connection structure for connecting pipes. Background Art

[0002] The compression connection is a new type of pipe connection method, also known as the elastic interlocking connection. Its basic principle is to connect the pipes through a socket pipe fitting with a sealing ring, and use special tools to press the pipe mouth to achieve the effect of sealing and tightening.

[0003] According to the patent application number 201920504548.8, a copper press-fit connection pipe fitting is disclosed, comprising a first tube body, a second tube body connected to and communicated with the first tube body, a retaining ring sleeved and fixed on the first tube body, and a copper sleeve sleeved on the outside of the first tube body; the retaining ring is clamped between the second tube body and the copper sleeve; a first positioning protrusion is provided on the inner circumference of the retaining ring; a first positioning groove is provided on the outer circumference of the first end of the copper sleeve, and the first positioning protrusion is clamped in the first positioning groove to realize that the first end of the copper sleeve is clamped in the retaining ring; a gap is left between the copper sleeve and the first tube body for the pipe to be inserted.

[0004] Although the above technical solution has good sealing performance and can reduce the risk of water leakage, the above technical solution is more troublesome for the installation and disassembly of the pipe, which will lead to low efficiency in the installation and maintenance of the pipe. For this reason, we provide a connecting pipe compression connection structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a compression connection structure for connecting pipes.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connecting pipe compression connection structure includes a connecting sleeve, a first connecting pipe fitting and a second connecting pipe fitting, a retaining ring is fixedly connected to the middle part of the first connecting pipe fitting, the ends of the first connecting pipe fitting and the second connecting pipe fitting that are close to each other are both inserted into the interior of the connecting sleeve, sealing gaskets are installed between the first connecting pipe fitting and the retaining ring, and between the second connecting pipe fitting and the retaining ring, and a limited circular groove is provided on the part of the first connecting pipe fitting located inside the connecting sleeve and on the part of the second connecting pipe fitting located inside the connecting sleeve.

[0008] As a preferred solution of this embodiment, a limiting assembly is provided on the connecting sleeve, and the limiting assembly includes a shell and a screw. The shell is provided with a first arc surface that is compatible with the connecting sleeve. The shell is pressed against the connecting sleeve through the first arc surface, and one end of the screw passes through the shell and is tightened on the connecting sleeve.

[0009] As a preferred solution of this embodiment, a support plate is fixedly connected to the interior of the shell, and a second arc surface matching the connecting sleeve is formed on the support plate, and the support plate is pressed against the connecting sleeve through the second arc surface.

[0010] As a preferred solution of this embodiment, the limit assembly also includes a knob, to which a threaded rod is fixedly connected, and one end of the threaded rod away from the knob passes through the top of the shell and is rotatably connected to the inside of the support plate.

[0011] As a preferred solution of this embodiment, the outer surface of the threaded rod is threadedly connected with a threaded plate, and the threaded plate is slidably connected to the inside of the shell.

[0012] As a preferred solution of this embodiment, two limiting plates are fixedly connected to the bottom surface of the threaded plate, and the two limiting plates are both provided with a third arc surface adapted to the limiting circular groove.

[0013] As a preferred solution of this embodiment, two rectangular grooves adapted to the limiting plates are opened on the connecting sleeve, and the two limiting plates respectively penetrate the two rectangular grooves on one side away from the threaded plate and are pressed tightly inside the two limiting circular grooves.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model cooperates between the limiting circular groove and the limiting assembly. When installing the first connecting pipe fitting and the second connecting pipe fitting, it is only necessary to press the first connecting pipe fitting and the second connecting pipe fitting against the inside of the connecting sleeve, and then turn the knob in the forward direction to simultaneously install and fix the first connecting pipe fitting and the second connecting pipe fitting. When repairing the first connecting pipe fitting and the second connecting pipe fitting, it is only necessary to turn the knob in the reverse direction to release the fixation of the first connecting pipe fitting and the second connecting pipe fitting, and then the first connecting pipe fitting and the second connecting pipe fitting can be removed for repair. The process is simple and convenient, thereby effectively improving the installation and repair efficiency of the first connecting pipe fitting and the second connecting pipe fitting.

[0016] (2) The utility model can achieve a sealed connection between the first connecting pipe and the second connecting pipe through the cooperation between the retaining ring and the sealing gasket, thereby effectively reducing the risk of water leakage. By setting screws, the limit assembly can be easily installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the first connecting pipe and the limiting circular groove of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the hidden shell and screws of the limiting component of the utility model.

[0022] As shown in the figure: 1. connecting sleeve; 2. first connecting pipe fitting; 3. second connecting pipe fitting; 4. sealing gasket; 5. limiting circular groove; 6. limiting assembly; 601. shell; 602. screw; 603. knob; 604. threaded rod; 605. support plate; 606. threaded plate; 607. limiting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 3 As shown, the embodiment of the utility model provides a connecting pipe compression connection structure, specifically including a connecting sleeve 1, a first connecting pipe 2 and a second connecting pipe 3, a retaining ring is fixedly connected to the middle part of the first connecting pipe 2, and the ends of the first connecting pipe 2 and the second connecting pipe 3 close to each other are both inserted into the inside of the connecting sleeve 1, and a sealing gasket 4 is installed between the first connecting pipe 2 and the retaining ring, and between the second connecting pipe 3 and the retaining ring. A limited circular groove 5 is provided on the part of the first connecting pipe 2 located inside the connecting sleeve 1 and the part of the second connecting pipe 3 located inside the connecting sleeve 1, and the diameter of the retaining ring is adapted to the diameter of the first connecting pipe 2 and the second connecting pipe 3. Through the cooperation between the retaining ring and the sealing gasket 4, a sealed connection between the first connecting pipe 2 and the second connecting pipe 3 can be achieved, thereby effectively reducing the risk of water leakage.

[0025] See also Figures 1 to 4As shown, a limiting component is provided on the connecting sleeve, and the limiting component 6 specifically includes a shell 601 and a screw 602. A first arc surface adapted to the connecting sleeve 1 is opened on the shell 601, and the shell 601 is pressed on the connecting sleeve 1 through the first arc surface. One end of the screw 602 passes through the shell 601 and is tightened on the connecting sleeve 1. There are four screws 602, and the four screws 602 are respectively located at the four corners of the connecting sleeve 1. By setting the screws 602, the limiting component 6 can be easily installed and disassembled. A support plate 605 is fixedly connected to the inside of the shell 601, and a second arc surface that matches the connecting sleeve 1 is opened on the support plate 605. The support plate 605 is pressed against the connecting sleeve 1 through the second arc surface. The limit assembly 6 also includes a knob 603, and a threaded rod 604 is fixedly connected to the knob 603. The end of the threaded rod 604 away from the knob 603 passes through the top of the shell 601 and is rotatably connected to the inside of the support plate 605. The knob 603 fits against the upper surface of the shell 601. When the knob 603 is turned, the threaded rod 604 can be driven to rotate accordingly.

[0026] See also Figure 2 and Figure 4 As shown, the outer surface of the threaded rod 604 is threadedly connected with a threaded plate 606, and the threaded plate 606 is slidably connected to the inside of the shell 601. When the knob 603 drives the threaded rod 604 to rotate forward, it can drive the threaded plate 606 to slide downward. When the knob 603 drives the threaded rod 604 to rotate reversely, it can drive the threaded plate 606 to slide upward. The bottom surface of the threaded plate 606 is fixedly connected to two limit plates 607, and the two limit plates 607 are both provided with a third arc surface adapted to the limit circular groove 5. The connecting sleeve 1 is provided with two rectangular grooves adapted to the limit plates 607. The two limit plates 607 are respectively penetrated by one side away from the threaded plate 606 and are pressed tightly against the inside of the two limit circular grooves 5. The first connecting pipe 2 and the second connecting pipe 3 are pressed tightly against the inside of the connecting sleeve 1. Then, the knob 603 is rotated forward, and the knob 603 can drive the threaded rod 604 to rotate forward. The forward rotation of the threaded rod 604 can drive the threaded plate 606 and the two limit plates 607 to move downward, so that the two limit plates 607 will pass through the two rectangular grooves respectively and be inserted into the inside of the two limiting circular grooves 5, so that the first connecting pipe fitting 2 and the second connecting pipe fitting 3 can be installed and fixed. When the first connecting pipe fitting 2 and the second connecting pipe fitting 3 need to be repaired, it is only necessary to rotate the knob 603 in the opposite direction. The knob 603 can drive the threaded rod 604 to rotate in the opposite direction. The reverse rotation of the threaded rod 604 can drive the threaded plate 606 and the two limiting plates 607 to move away from the first connecting pipe fitting 2 and the second connecting pipe fitting 3, thereby releasing the fixation of the first connecting pipe fitting 2 and the second connecting pipe fitting 3, and then the first connecting pipe fitting 2 and the second connecting pipe fitting 3 can be removed for repair.

[0027] The specific working principle and use process of the utility model are as follows: when in use, first use the screw 602 to install the limit assembly 6 on the connecting sleeve 1, then press the first connecting pipe 2 and the second connecting pipe 3 against the inside of the connecting sleeve 1, and then rotate the knob 603 forward, the knob 603 can drive the threaded rod 604 to rotate forward, and the threaded rod 604 can drive the threaded plate 606 and the two limit plates 607 to move downward, so that the two limit plates 607 will penetrate the two rectangular grooves respectively and be plugged into the inside of the two limit circular grooves 5, so that The first connecting pipe 2 and the second connecting pipe 3 are installed and fixed. When the first connecting pipe 2 and the second connecting pipe 3 need to be repaired, it is only necessary to rotate the knob 603 in the opposite direction. The knob 603 can drive the threaded rod 604 to rotate in the opposite direction. The reverse rotation of the threaded rod 604 can drive the threaded plate 606 and the two limit plates 607 to move away from the first connecting pipe 2 and the second connecting pipe 3, thereby releasing the fixation of the first connecting pipe 2 and the second connecting pipe 3, and then the first connecting pipe 2 and the second connecting pipe 3 can be removed for repair.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connecting pipe compression connection structure, comprising a connecting sleeve (1), a first connecting pipe (2) and a second connecting pipe (3), characterized in that: A retaining ring is fixedly connected to the middle of the first connecting pipe (2); the ends of the first connecting pipe (2) and the second connecting pipe (3) that are close to each other are inserted into the interior of the connecting sleeve (1); sealing gaskets (4) are installed between the first connecting pipe (2) and the retaining ring and between the second connecting pipe (3) and the retaining ring; and a limiting circular groove (5) is provided on the portion of the first connecting pipe (2) located inside the connecting sleeve (1) and the portion of the second connecting pipe (3) located inside the connecting sleeve (1).

2. The connecting pipe compression connection structure according to claim 1, characterized in that: A limit assembly (6) is provided on the connecting sleeve (1), and the limit assembly (6) comprises a shell (601) and a screw (602). The shell (601) is provided with a first arc surface that matches the connecting sleeve (1), and the shell (601) is pressed against the connecting sleeve (1) through the first arc surface. One end of the screw (602) passes through the shell (601) and is screwed onto the connecting sleeve (1).

3. The connecting pipe compression connection structure according to claim 2, characterized in that: A support plate (605) is fixedly connected to the interior of the shell (601), and a second curved surface matching the connecting sleeve (1) is provided on the support plate (605), and the support plate (605) is pressed against the connecting sleeve (1) via the second curved surface.

4. The connecting pipe compression connection structure according to claim 3, characterized in that: The limiting assembly (6) further comprises a knob (603), to which a threaded rod (604) is fixedly connected, and one end of the threaded rod (604) away from the knob (603) passes through the top of the housing (601).

5. The connecting pipe compression connection structure according to claim 4, characterized in that: The outer surface of the threaded rod (604) is threadedly connected to a threaded plate (606), and the threaded plate (606) is slidably connected to the inside of the housing (601).

6. The connecting pipe compression connection structure according to claim 5, characterized in that: Two limiting plates (607) are fixedly connected to the bottom surface of the threaded plate (606), and the two limiting plates (607) are both provided with a third arc surface that matches the limiting circular groove (5).

7. The connecting pipe compression connection structure according to claim 6, characterized in that: The connecting sleeve (1) is provided with two rectangular grooves adapted to the limiting plates (607), and the sides of the two limiting plates (607) away from the threaded plates (606) respectively penetrate the two rectangular grooves and are pressed tightly against the inside of the two limiting circular grooves (5).

Images