Pipe joint connecting device

Abstract

The utility model provides a pipe joint connecting device, which relates to the technical field of pipe connection and comprises a first connecting pipe, a second connecting pipe, a valve and a connecting ring, one end of the second connecting pipe is in threaded connection with one end of the valve, the other end of the second connecting pipe is coaxially connected with a clamping ring, an inner opening of the clamping ring gradually increases in the direction away from the second connecting pipe, the second connecting pipe is sleeved with the connecting ring, and the inner diameter of the end, close to the valve, of the connecting ring is smaller than the outer diameter of the clamping ring; one end of the first connecting pipe is coaxially provided with a connecting bell mouth, the other end of the first connecting pipe is provided with a front-end external thread part, the connecting bell mouth can extend into the clamping ring, the end, provided with the connecting bell mouth, of the first connecting pipe is provided with a rear-end external thread part, and an internal thread matched with the rear-end external thread part is arranged in the connecting ring; the connecting bellmouth extends into the clamping ring, and the clamping ring is clamped in the connecting ring. The problems that according to existing pipe connection, smoothness of a pipeline needs to be guaranteed through rotating equipment, and consequently construction is inconvenient and slow are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connection, in particular to a pipe joint connection device. Background Art

[0002] During the design and production of JPCCP pipe joints, the punching holes are often designed with embedded bolt holes. During the initial punching test and subsequent grouting and sealing construction, the punching holes need to be connected to the hoses of the construction equipment. Due to the small diameter of the punching holes of JPCCP pipes, the punching holes of the current pipe jacking projects in the industry are all connected using direct connectors. During the connection process, the hoses of the construction equipment may twist and become tangled, which may easily lead to damage or blockage of the pipeline. Alternatively, during the connection process, the equipment must be rotated to ensure smooth flow of the pipeline, which makes construction inconvenient, requires the cooperation of multiple people, and is slow. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a pipe joint connection device, which solves the problem that the prior pipe connection requires rotating equipment to ensure the smooth flow of the pipeline, resulting in inconvenience and slow construction.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A pipe joint connection device, comprising: a first connecting pipe, a second connecting pipe, a valve and a connecting ring;

[0006] One end of the second connecting pipe is threadedly connected to one end of the valve, and the other end of the second connecting pipe is coaxially connected to a clamping ring, the internal opening of the clamping ring gradually increases in the direction away from the second connecting pipe, and the connecting ring is sleeved on the second connecting pipe, and the inner diameter of the connecting ring near the valve end is smaller than the outer diameter of the clamping ring;

[0007] A connecting socket is coaxially provided at one end of the first connecting pipe, and a front end external thread portion is provided at the other end. The connecting socket can be extended into the clamping ring, and a rear end external thread portion is provided at one end of the connecting socket. An internal thread matching the rear end external thread portion is provided inside the connecting ring. When the connecting ring is threadedly connected to the end of the first connecting pipe, the connecting socket extends into the clamping ring and the clamping ring is clamped in the connecting ring.

[0008] Preferably, a fixing ring is also fixed to the outside of the first connecting tube, and the fixing ring includes a coaxially arranged fixed inner ring and a fixed outer ring, and also includes a fixed U-plate, the two ends of the fixed U-plate are respectively connected to the fixed inner ring and the fixed outer ring, and a fixing rod is provided on the outer periphery of the connecting ring, one end of the fixing rod is fixed to the outer periphery of the connecting ring, and the other end can pass through between the fixed inner ring and the fixed outer ring and be sleeved with a stop block, and is threadedly connected with a nut.

[0009] Preferably, a first rubber ring is provided on the outer periphery of the connecting socket, and the inner wall of the first rubber ring is in contact with the connecting socket.

[0010] Preferably, a second rubber ring is provided outside the clamping ring, and the first rubber ring can extend into the second rubber ring.

[0011] Preferably, the first connecting tube is provided with a first milling groove, and the second connecting tube is provided with a second milling groove.

[0012] The utility model has the following beneficial effects:

[0013] The connecting device adopts a segmented design, with a first connecting pipe, a second connecting pipe and a valve connected in sequence, avoiding twisting and tangling of the equipment hose during installation, facilitating construction and improving construction speed; when the first connecting pipe and the second connecting pipe are connected through a connecting ring, the connecting socket provided on the first connecting pipe and the clamping ring provided on the second connecting pipe cooperate to ensure the sealing of the connection.

[0014] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the first connecting pipe structure of the present invention;

[0017] Figure 3 This is a schematic cross-sectional view of the connecting ring structure of the present invention;

[0018] Figure 4 This is a schematic cross-sectional view of the second connecting pipe structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the fixing ring structure of the utility model;

[0020] Figure 6 This is a structural diagram of a fixed U-plate of the present invention.

[0021] In the above drawings: 1. First connecting pipe; 11. Rear end external threaded portion; 12. Front end external threaded portion; 101. First milling groove; 2. Second connecting pipe; 201. Second milling groove; 3. Valve; 4. Connecting ring; 41. Internal thread; 42. Fixing rod; 43. Stopper; 44. Nut; 5. Snap ring; 6. Connecting socket; 7. Fixing ring; 71. Fixed inner ring; 72. Fixed outer ring; 73. Fixed U-plate; 8. First rubber ring; 9. Second rubber ring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the technical solutions in the present invention are further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figures 1 to 6 As shown, a pipe joint connection device includes: a first connecting pipe 1, a second connecting pipe 2, a valve 3 and a connecting ring 4; one end of the second connecting pipe 2 is threadedly connected to one end of the valve 3, and the other end of the second connecting pipe 2 is coaxially connected to a clamping ring 5, the internal opening of the clamping ring 5 gradually increases in the direction away from the second connecting pipe 2, and the connecting ring 4 is sleeved on the second connecting pipe 2, and the inner diameter of the connecting ring 4 close to the valve 3 is smaller than the outer diameter of the clamping ring 5; one end of the first connecting pipe 1 is coaxially provided with a connecting socket 6, and the other end is provided with a front end external threaded portion 12, the connecting socket 6 can be extended into the clamping ring 5, and the end with the connecting socket 6 is provided with a rear end external threaded portion 11, and the inside of the connecting ring 4 is provided with an internal thread 41 that cooperates with the rear end external threaded portion 11. When the connecting ring 4 is threadedly connected to the end of the first connecting pipe 1, the connecting socket 6 extends into the clamping ring 5 and the clamping ring 5 is stuck in the connecting ring 4.

[0024] Specifically, grouting hole channels are provided in the first connecting pipe 1, the second connecting pipe 2 and the valve 3; the first connecting pipe 1 is made of tungsten steel and is processed by lathe drilling and milling, with a total length of 138.5mm; the front end external threaded portion 12 is 18.5mm long and has a diameter of φ12mm; the rear end external threaded portion 11 is 14mm long and has a diameter of φ20mm; the connecting socket 6 is 6mm long; the second connecting pipe 2 is made of tungsten steel and is processed by lathe drilling and milling, with a total length of 72mm; the retaining ring 5 is 3mm long and has an outer diameter of φ18mm; the connecting ring 4 is made of tungsten steel and is processed by lathe drilling and milling, the internal thread 41 is 18.8mm long, the internal diameter of the connecting ring 4 is φ20mm, the inner diameter of the connecting ring 4 near the valve 3 is φ15mm, and the length is 1.2mm.

[0025] When in use, the front end external thread portion 12 of the first connecting pipe 1 is screwed into the pressure hole, one end of the valve 3 is connected to the equipment pipeline, and the other end is connected to the second connecting pipe 2. The connecting ring 4 is sleeved on the second connecting pipe 2, and the connecting socket 6 is inserted into the clamping ring 5. Then the connecting ring 4 is tightened with the rear end external thread portion 11 on the first connecting pipe 1, so that the connecting socket 6 is fixedly docked in the clamping ring 5. After the connection is completed, grouting construction can be carried out. The connecting device adopts a segmented design, and the first connecting pipe 1, the second connecting pipe 2 and the valve 3 are connected in sequence, which avoids the twisting and tangling of the equipment hose during the installation process, facilitates construction, and improves construction speed; when the first connecting pipe 1 and the second connecting pipe 2 are connected through the connecting ring 4, the connecting socket 6 set on the first connecting pipe 1 and the clamping ring 5 set on the second connecting pipe 2 cooperate to ensure the sealing of the connection.

[0026] like Figures 1 to 3 、 Figure 5 and Figure 6 As shown, a fixing ring 7 is also fixed to the outside of the first connecting tube 1, and the fixing ring 7 includes a coaxially arranged fixing inner ring 71 and a fixing outer ring 72, and also includes a fixing U-plate 73, and the two ends of the fixing U-plate 73 are respectively connected to the fixing inner ring 71 and the fixing outer ring 72. A fixing rod 42 is provided on the outer periphery of the connecting ring 4, and one end of the fixing rod 42 is fixed to the outer periphery of the connecting ring 4, and the other end can pass through between the fixing inner ring 71 and the fixing outer ring 72 and is sleeved with a stopper 43, and is threadedly connected with a nut 44. The fixed U-plate 73 is U-shaped. When the internal thread 41 of the connecting ring 4 is rotated and engaged with the rear end external thread portion 11, the fixing rod 42 moves along the outer circumference of the fixed inner ring 71. The fixed U-plate 73 serves to connect the fixed inner ring 71 and the fixed outer ring 72. At the same time, it will not hinder the movement of the fixing rod 42 between the fixed inner ring 71 and the fixed outer ring 72. The end of the fixing rod 42 is provided with a thread that cooperates with the nut 44. The fixing rod 42 cooperates with the set stopper 43 and the nut 44 to further limit the connecting ring 4 to avoid movement along the second connecting pipe 2, thereby improving the reliability of the connection.

[0027] Furthermore, to improve the sealing performance of the connection, a first rubber ring 8 is provided on the outer periphery of the connection socket 6. The inner wall of the first rubber ring 8 contacts the connection socket 6. When the connection socket 6 is inserted into the retaining ring 5, the first rubber ring 8 abuts against the side of the retaining ring 5. A second rubber ring 9 is provided on the outer periphery of the retaining ring 5. The first rubber ring 8 can be inserted into the second rubber ring 9. The provision of the first rubber ring 8 and the second rubber ring 9 further improves the sealing performance.

[0028] Further, if Figure 2 and Figure 4 As shown, in order to facilitate the screwing of the first connecting tube 1 and the second connecting tube 2 , the first connecting tube 1 is provided with a first milling groove 101 , and the second connecting tube 2 is provided with a second milling groove 201 .

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pipe joint connection device, characterized in that: include: A first connecting pipe (1), a second connecting pipe (2), a valve (3), and a connecting ring (4); One end of the second connecting pipe (2) is threadedly connected to one end of the valve (3), and the other end of the second connecting pipe (2) is coaxially connected to a clamping ring (5), the internal opening of the clamping ring (5) gradually increases in the direction away from the second connecting pipe (2), and the connecting ring (4) is sleeved on the second connecting pipe (2), and the inner diameter of the connecting ring (4) near the end of the valve (3) is smaller than the outer diameter of the clamping ring (5); One end of the first connecting pipe (1) is coaxially provided with a connecting socket (6), and the other end is provided with a front end external threaded portion (12), the connecting socket (6) can be extended into the clamping ring (5), and one end of the connecting socket (6) is provided with a rear end external threaded portion (11), and the interior of the connecting ring (4) is provided with an internal thread (41) that matches the rear end external threaded portion (11), when the connecting ring (4) is threadedly connected to the end of the first connecting pipe (1), the connecting socket (6) extends into the clamping ring (5) and the clamping ring (5) is clamped in the connecting ring (4).

2. A pipe joint connection device according to claim 1, characterized in that: A fixing ring (7) is also fixedly provided on the outside of the first connecting tube (1), and the fixing ring (7) includes a coaxially arranged fixing inner ring (71) and a fixing outer ring (72), and also includes a fixing U-plate (73), the two ends of the fixing U-plate (73) are respectively connected to the fixing inner ring (71) and the fixing outer ring (72), and a fixing rod (42) is provided on the outer periphery of the connecting ring (4), one end of the fixing rod (42) is fixed to the outer periphery of the connecting ring (4), and the other end can pass between the fixing inner ring (71) and the fixing outer ring (72) and is sleeved with a stopper (43), and is threadedly connected with a nut (44).

3. A pipe joint connection device according to claim 1, characterized in that: A first rubber ring (8) is provided on the outer periphery of the connecting socket (6), and the inner wall of the first rubber ring (8) is in contact with the connecting socket (6).

4. A pipe joint connection device according to claim 3, characterized in that: A second rubber ring (9) is provided outside the clamping ring (5), and the first rubber ring (8) can extend into the second rubber ring (9).

5. The pipe joint connection device according to claim 1, characterized in that: The first connecting pipe (1) is provided with a first milling groove (101), and the second connecting pipe (2) is provided with a second milling groove (201).

Images