Thermal nodular cast iron pipe construction positioning device

Abstract

A thermal nodular cast iron pipe construction positioning device is used for axial positioning work between a pipe socket and a pipe spigot, the pipe socket comprises a connecting section and an abutting section which are coaxially connected, the pipe spigot is inserted into the connecting section, the inner diameter of the connecting section is larger than that of the abutting section, the positioning device comprises a positioning block, and a magnetic part is arranged on one side of the positioning block; the side, provided with the magnetic part, of the positioning block is further provided with a stopping block, and the height of the stopping block is not larger than 1 / 2 of the difference between the inner diameter of the connecting section and the inner diameter of the abutting section. Due to the design of the stop block, an operator does not need to measure the insertion depth of the pipe socket for multiple times, and the stop block provides consistent reference points, so that the insertion depth consistency of the pipe socket is ensured, errors caused by manual operation are reduced, and the positioning precision is improved; meanwhile, due to the design of the magnetic piece and the stop block, the positioning block can be rapidly fixed to the designated position of the pipe socket, the time needed for adjustment and alignment is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection construction, in particular to a construction positioning device for a thermal ductile iron pipe. Background Technique

[0002] In the process of inserting-type pipeline construction, in order to reserve a deflection space for the pipeline, an axial gap needs to be reserved between the socket and the spigot of two pipelines for the pipeline to deflect. However, there are some problems with the existing methods of reserving the gap.

[0003] During the insertion connection process of the pipeline, the operator needs to position the depth of the spigot inserted axially into the socket so that there is a gap between the spigot and the socket axially. This method requires multiple measurements of the insertion depth during operation and also requires precise control of the insertion depth. It is not easy to be positioned successfully at one time. In addition, the gap sizes reserved each time are difficult to be unified, resulting in difficult positioning and low positioning accuracy. Content of the Utility Model

[0004] In order to solve the technical problems existing in the above background technique, the utility model provides a construction positioning device for a thermal ductile iron pipe.

[0005] The technical solution of the utility model is as follows:

[0006] A construction positioning device for a thermal ductile iron pipe is used for axial positioning between a pipe socket and a pipe spigot. The pipe socket includes a connecting section and a pressing section connected coaxially. The pipe spigot is inserted into the connecting section, and the inner diameter of the connecting section is larger than that of the pressing section.

[0007] As the core technical concept of the utility model, the positioning device includes a positioning block. One side of the positioning block is provided with a magnetic part, and the positioning block is arranged to be adsorbed on the inner ring of the pressing section near one end of the connecting section under the action of the magnetic part. A blocking block is also provided on the side of the positioning block where the magnetic part is arranged. The height of the blocking block relative to the side of the positioning block where the magnetic part is arranged is not greater than 1 / 2 of the inner diameter difference between the connecting section and the pressing section. According to the above design, it can be understood that the side of the blocking block close to the magnetic part abuts against the step where the inner diameter of the pressing section is smaller than that of the connecting section, and the end of the insertion end of the pipe spigot abuts against the other side of the blocking block. When bearing the axial force of the insertion of the pipe spigot, the force acting on the magnetic part can be shared by the step of the pressing section, which helps to disperse the axial force transmitted through the pipe spigot, reduce the direct impact on the magnetic part, and improve the stability of the positioning part adsorbed on the inner ring of the pipe socket. Here, it can be understood that the thickness of the blocking block (the distance from the side of the blocking block close to the magnetic part to the side abutting against the end of the insertion end of the pipe spigot) can be set according to the deflection gap required by the pipe socket and the pipe spigot used in the actual construction process.

[0008] During use, first, the positioning block is adsorbed on the inner ring of the abutting section near one end of the connecting section through the magnetic part. At the same time, one side of the blocking block close to the magnetic part abuts against the step at the position where the inner diameter of the abutting section is smaller than that of the connecting section. Then, the pipe socket is coaxially inserted into the pipe socket end. When the end of the inserted end of the pipe socket abuts against the other side of the blocking block, the axial positioning between the pipe socket and the pipe socket can be quickly realized, without measuring the insertion depth of the pipe socket multiple times, improving the construction efficiency. In addition, the reserved gap size is the same each time, making the positioning simple and the positioning accuracy high, which is conducive to ensuring the quality of pipeline connection.

[0009] As a further implementation method:

[0010] The blocking block is arranged at one end of the positioning block close to the connecting section, so as to control the insertion depth of the pipe socket and ensure the accurate axial positioning between the pipe socket and the pipe socket.

[0011] The side of the positioning block provided with the magnetic part is an arc surface that fits the inner ring of the abutting section, so that the positioning block can better fit the inner ring of the pipe socket, increasing the contact area and improving the adsorption stability.

[0012] A groove is opened in the middle of the arc surface of the positioning block, and the magnetic part is arranged in the groove. The depth of the groove is 1 / 3 - 1 / 4 of the thickness of the positioning block. On the premise of ensuring the structural strength of the positioning part, the magnetic part can be accommodated. The appropriate groove depth increases the contact area between the magnetic part and the positioning block, improving the adsorption stability of the magnetic part.

[0013] A hand-held handle is arranged on the side of the positioning block away from the groove, so that the operator can disassemble and assemble the positioning block more safely and conveniently, reducing the safety risk during the construction process.

[0014] Furthermore, the hand-held handle includes a U-shaped plate with an opening facing the positioning block. Connecting plates welded to the positioning block are respectively arranged on both sides of the opening. The gap between the U-shaped plate and the positioning block can accommodate a person's hand to hold on the U-shaped plate, facilitating the disassembly and assembly of the positioning device.

[0015] The beneficial effect of a construction positioning device for a heat-resistant ductile iron pipe of the present utility model is that the design of the blocking block enables the operator to avoid measuring the insertion depth of the pipe socket multiple times. Since the blocking block provides a consistent reference point, it ensures the consistency of the insertion depth of the pipe socket, reduces the error caused by manual operation, improves the positioning accuracy. At the same time, through the adsorption effect of the magnetic part and the design of the blocking block, the positioning block can be quickly fixed at the designated position of the pipe socket, reducing the time required for adjustment and alignment, and improving the construction efficiency. Description of the Drawings

[0016] In the drawings:

[0017] Figure 1Schematic diagram of the use of a construction positioning device for a thermal ductile iron pipe of the present utility model;

[0018] Figure 2 Schematic diagram of the structure of a construction positioning device for a thermal ductile iron pipe of the present utility model (semi-sectional view);

[0019] The components represented by each reference numeral in the figure are:

[0020] 1. Pipe socket; 11. Deflection chamber; 2. Pipe spigot; 31. Positioning block; 311. Groove; 32. Magnetic part; 312. Blocking block; 33. Hand-held handle. Detailed implementation manner

[0021] Combined with Figure 1 , this embodiment provides a construction positioning device for a thermal ductile iron pipe, which is used for the axial positioning between the pipe socket 1 and the pipe spigot 2. An annular deflection chamber 11 is provided in the inner ring of the pipe socket 1, and the pipe socket 1 is divided into a connecting section and an abutting section that are coaxially connected from the position of the deflection chamber 11. The pipe spigot 2 is inserted into the connecting section, and the inner diameter of the connecting section is larger than that of the abutting section.

[0022] Combined with Figure 2 , this positioning device includes a positioning block 31. A magnetic part 32 is provided on one side of the positioning block 31, and the positioning block 31 is arranged to be adsorbed on the inner ring of the abutting section near the connecting section under the action of the magnetic part 32. A blocking block 312 is also provided on the side of the positioning block 31 where the magnetic part 32 is provided. The blocking block 312 is located in the deflection chamber 11 and is arranged at one end of the positioning block 31 close to the connecting section, so as to control the insertion depth of the pipe spigot 2, ensure the accurate axial positioning between the pipe socket 1 and the pipe spigot 2, and the height of the blocking block 312 relative to the side of the positioning block 31 where the magnetic part 32 is provided is not greater than 1 / 2 of the inner diameter difference between the connecting section and the abutting section. The side of the blocking block 312 close to the magnetic part 32 abuts against the step where the inner diameter of the abutting section is smaller than that of the connecting section, and the end of the insertion end of the pipe spigot 2 abuts against the other side of the blocking block 312. When bearing the axial force of the insertion of the pipe spigot 2, the force acting on the magnetic part 32 can be shared by the step of the abutting section, which helps to disperse the axial force transmitted through the pipe spigot 2, reduce the direct impact on the magnetic part 32, and improve the stability of the positioning part adsorbed on the inner ring of the pipe socket 1.

[0023] The thickness of the blocking block 312 (the distance from the side of the blocking block 312 close to the magnetic part 32 to the side abutting against the insertion end of the pipe spigot 2) can be set according to the deflection gap required between the pipe socket 1 and the pipe spigot 2 used in the actual construction process.

[0024] One side of the positioning block 31 where the magnetic member 32 is provided is an arc surface that fits the inner circle of the abutting section, so that the positioning block 31 can better fit the inner circle of the pipe socket 1, increasing the contact area and improving the adsorption stability.

[0025] A groove 311 is provided in the middle of the arc surface of the positioning block 31, and the magnetic member 32 is arranged in the groove 311. The depth of the groove 311 is 1 / 3 - 1 / 4 of the thickness of the positioning block 31. To ensure the structural strength of the positioning member and be able to accommodate the magnetic member 32, the appropriate depth of the groove 311 increases the contact area between the magnetic member 32 and the positioning block 31, improving the adsorption stability of the magnetic member 32.

[0026] Combined Figure 1 , during the implementation process, it is also possible to choose to provide a placement groove corresponding to the magnetic member 32 in the inner circle of the pipe socket 1, so that a part of the magnetic member 32 extends out of the groove 311 and can extend into the placement groove, improving the connection stability between the magnetic member 32 and the pipe socket 1, further enhancing the adsorption effect of the magnetic member 32, enabling the positioning block 31 to be more firmly adsorbed on the inner circle of the pipe socket 1, and thus further improving the positioning accuracy of this positioning device.

[0027] Combined Figure 2 , a hand-held handle 33 is provided on the side of the positioning block 31 away from the groove 311, enabling the operator to disassemble and assemble the positioning block 31 more safely and conveniently, reducing the safety risks during the construction process.

[0028] Furthermore, the hand-held handle 33 includes a U-shaped plate with an opening facing the positioning block 31. Connecting plates welded to the positioning block 31 are respectively provided on both sides of the opening. The gap between the U-shaped plate and the positioning block 31 can accommodate a person's hand to hold on the U-shaped plate, facilitating the disassembly and assembly of this positioning device.

[0029] During use, first, the positioning block 31 is adsorbed on the predetermined position of the inner circle of the pipe socket 1 through the magnetic member 32. At the same time, the side of the blocking block 312 close to the magnetic member 32 abuts against the step where the inner diameter of the abutting section is smaller than the inner diameter of the connecting section. Then, the pipe spigot 2 is coaxially inserted into the pipe socket 1 until the end of the insertion end of the pipe spigot 2 abuts against the other side of the blocking block 312. In this way, the axial positioning between the pipe socket 1 and the pipe spigot 2 can be quickly realized without measuring the insertion depth of the pipe spigot 2 multiple times, improving the construction efficiency. In addition, the reserved gap size is the same each time, making the positioning simple and with high positioning accuracy, which is beneficial to ensuring the quality of pipeline connection.

Claims

1. A thermal ductile iron pipe construction positioning device, used for axial positioning between a pipe socket (1) and a pipe spigot (2), wherein the pipe socket (1) comprises a coaxially connected connecting section and a tightening section, the pipe spigot (2) is inserted into the connecting section, and the inner diameter of the connecting section is larger than the inner diameter of the tightening section, characterized in that: It comprises a positioning block (31), one side of which is provided with a magnetic piece (32) and is configured to be able to be adsorbed on the inner ring of the abutting section close to one end of the connecting section under the action of the magnetic piece (32); A blocking block (312) is also provided on one side of the positioning block (31) where the magnetic member (32) is provided, and the height of the blocking block (312) is not greater than 1 / 2 of the difference between the inner diameters of the connecting section and the abutting section.

2. A thermal ductile iron pipe construction positioning device as claimed in claim 1, characterized in that: The blocking block (312) is arranged at one end of the positioning block (31) close to the connecting section.

3. A thermal ductile iron pipe construction positioning device as claimed in claim 2, characterized in that: A side surface of the positioning block (31) on which the magnetic member (32) is arranged is an arc-shaped surface that fits the inner circle of the abutting section.

4. A thermal ductile iron pipe construction positioning device as claimed in claim 3, characterized in that: A groove (311) is provided in the middle of the arc-shaped surface of the positioning block (31), and the magnetic member (32) is arranged in the groove (311).

5. A thermal ductile iron pipe construction positioning device as claimed in claim 4, characterized in that: The depth of the groove (311) is 1 / 3-1 / 4 of the thickness of the positioning block (31).

6. A thermal ductile iron pipe construction positioning device as described in any one of claims 1 to 5, characterized in that: A carrying handle (33) is provided on the side of the positioning block (31) facing away from the groove (311).

7. A thermal ductile iron pipe construction positioning device as claimed in claim 6, characterized in that: The carrying handle (33) comprises a U-shaped plate with an opening facing the positioning block (31), and connecting plates welded to the positioning block (31) are respectively provided on both sides of the opening.

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