Socket type welded steel pipe for drainage engineering

By designing a socket structure and a slotted pin assembly at the end of the steel pipe, the problems of high labor intensity and high equipment cost in the existing steel pipe welding process are solved, and a fast, stable and sealed steel pipe connection is achieved.

CN223909076UActive Publication Date: 2026-02-13ZHEJIANG TSINGSHAN STEEL PIPE CO LTD
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Patent Information

Application Number
CN202520789009.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-02-13
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

In the existing process of welding socket-type steel pipes, users need to apply a lot of force or use expensive equipment, resulting in high labor intensity, low efficiency and increased costs.

Method used

The steel pipe ends are designed with a socket structure, combined with components such as slots, pins, spring clips and sealing rings, to achieve stable docking and sealing connection of the steel pipes, reduce manual labor and simplify equipment requirements.

Benefits of technology

It enables rapid and stable connection of steel pipes, reduces the workload of users, improves welding efficiency, reduces equipment costs, and ensures the sealing and precision of the connection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223909076U_ABST
Patent Text Reader

Abstract

The socket type welded steel pipe comprises a first pipe fitting and a second pipe fitting, the top end of the first pipe fitting is connected with a socket piece in an integrally formed mode, the top end of the first pipe fitting is connected with a protection piece located on the outer side of the socket piece in an integrally formed mode, and the bottom end of the second pipe fitting is connected into the protection piece in an inserted mode. The structural design that the two ends of the steel pipe are subjected to pre-plasticity in the forming process of the steel pipe is adopted, one end of the steel pipe is subjected to plasticity to be in a bell mouth shape, and the other end of the steel pipe is subjected to plasticity to be in an inserting mouth shape. The two ends of the two steel pipes are inserted together in the welding work so that the two steel pipes can be tightly assembled together, then a user can easily weld the two steel pipes together, the working intensity of the user is reduced, the welding efficiency of the steel pipes is improved, the cost investment is also reduced, and convenience is provided for working and using of the user.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe welding technical field especially a socket joint type welded steel pipe for drainage engineering. BACKGROUND

[0002] The socket joint type steel pipe adopts the stepped structure connection of the spigot and the socket, in the welding work of the steel pipe, two steel pipes need to be end-aligned and tightly attached together when welding, and the two steel pipes also need to be controlled not to move, which needs the user to manually clamp the two steel pipes together, the user needs to exert a great force, improves the working strength of the user, reduces the welding efficiency of the steel pipe, or places one steel pipe on the workbench, and the other steel pipe is lifted by the staff, so that the user also needs to exert a great force, which also improves the working strength of the user and reduces the welding efficiency of the steel pipe, or sends the two steel pipes into the welding machine, although the working strength is reduced, but the cost of purchasing equipment is increased.

[0003] In view of the above problems, the utility model improves. SUMMARY

[0004] The utility model discloses a socket joint type welded steel pipe for drainage engineering, solves the above -mentioned problems existing in the use process in the prior art.

[0005] The utility model discloses a socket joint type welded steel pipe for drainage engineering, solves the above -mentioned problems existing in the use process in the prior art.

[0006] The utility model discloses a socket joint type welded steel pipe for drainage engineering, solves the above -mentioned problems existing in the use process in the prior art.

[0007] The utility model discloses a socket joint type welded steel pipe for drainage engineering, solves the above -mentioned problems existing in the use process in the prior art.

[0008] The utility model discloses a socket type welded steel pipe for drainage engineering as described above further: the surface of the socket is equipped with a plurality of sealing rings, and the sealing rings are lapped on the top of the corresponding convex ring.

[0009] The utility model discloses a socket type welded steel pipe for drainage engineering as described above further: the surface of the pipe piece one is fixedly connected with a plurality of support blocks one, and the top of the plurality of support blocks one is fixedly connected with the protection piece.

[0010] The utility model discloses a socket type welded steel pipe for drainage engineering as described above further: the surface of the pipe piece two is fixedly connected with a plurality of support blocks two, and the bottom of the support block two is fixedly connected with the plug block.

[0011] The utility model discloses a socket type welded steel pipe for drainage engineering as described above further: the bottom of the pipe piece two inner chamber is provided with the insertion slot, and the insertion slot is matched with the socket.

[0012] The utility model discloses a socket type welded steel pipe for drainage engineering as described above further: the bottom of the pipe piece two inner chamber is provided with the insertion slot, and the insertion slot is matched with the socket.

[0013] 1、 the utility model discloses a structure design of the plasticity of the one end of steel pipe is socketed, and the plasticity of the other end is inserted, and the two ends of two steel pipes are mutually socketed together in the welding work, can be tightly assembled together, then the user can easily weld two steel pipes together, reduces the working strength of user, improves the welding efficiency of steel pipe, also reduces the cost input, provides convenient for the work use of user.

[0014] 2、 the utility model discloses the setting of fixed plate and spring clamp, and the spring clamp is clamped in the slot, and with the change of slot position, the spring clamp also makes corresponding deformation, thereby guaranteeing that the spring clamp can be removed and clamped into the slot flexibly, guaranteeing the stability of the plug block inserted into the recess, providing convenient for the work use of user.

[0015] 3、 the utility model discloses the setting of convex ring, after the socket is inserted into the pipe piece two, the convex ring is tightly attached to the inner wall of pipe piece two with interference fit, so that the socket can be firmly inserted into the insertion slot, that is, the pipe piece two, thereby guaranteeing the firmness of the butt joint assembly of pipe piece one and pipe piece two, providing convenient for the work use of user.

[0016] 4、 the utility model discloses the setting of sealing ring, after the socket is inserted into the pipe piece two, the sealing ring can seal the gap between the outer wall of socket and the inner wall of pipe piece two, thereby guaranteeing the sealing property of pipeline connection, avoiding the leakage, providing convenient for the work use of user.

[0017] 5. By setting the support block one, after the insert is inserted into the groove, its bottom will abut against the corresponding support block one. This can limit the insertion of the insert, ensuring that the insert can be accurately inserted into the groove, and also ensuring that pipe fitting one and pipe fitting two can be accurately connected together, providing convenience for the user's subsequent welding work.

[0018] 6. With the addition of the second support block, after the insert is inserted into the groove, the second support block will overlap the protective component. This can limit the insertion of the insert, ensuring that the insert is accurately inserted into the groove and ensuring the accuracy of the connection between the first and second fittings, thus providing convenience for the user's assembly work.

[0019] 7. By setting a slot, the diameter of the slot is larger than the diameter of the inner cavity of the second pipe fitting. In this way, the inner cavity of the second pipe fitting will form a stepped dividing line. When the support plug is inserted into the slot, it will be blocked, which will limit the docking of the first and second pipe fittings and ensure the accuracy of the connection between the first and second pipe fittings, thus providing convenience for the user's work. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a partial three-dimensional cross-sectional view of the present invention;

[0024] Figure 4 This is a partial three-dimensional exploded view of the present invention;

[0025] Figure 5 A three-dimensional structural diagram of the support component;

[0026] Figure 6 This is a three-dimensional sectional view of pipe fitting two.

[0027] In the figure: 1, pipe one, 2, pipe two, 3, socket, 4, protection, 5, groove, 6, plug, 7, card slot, 8, pin, 9, spring, 10, fixed plate, 11, convex ring, 12, sealing ring, 13, support block one, 14, support block two, 15, spring card, 16, sliding cavity, 17, slot. DETAILED DESCRIPTION

[0028] The utility model discloses an embodiment of the utility model will combine the accompanying drawings below Figures 1-6 The technical scheme in the embodiment of the utility model is described clearly and completely, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor are within the scope of the utility model protection. EMBODIMENT

[0029] A socket type welded steel pipe for drainage engineering, including pipe one 1 and pipe two 2, the top of pipe one 1 is integrally formed and is connected with socket 3, the top of pipe one 1 is integrally formed and is connected with protection 4 located on the outside of socket 3, the bottom of pipe two 2 is inserted into protection 4, socket 3 is inserted into pipe two 2, four grooves 5 are arranged in protection 4, the surface of pipe two 2 is fixedly connected with four plug 6 matched with groove 5, the surface of plug 6 is provided with equidistantly distributed card slot 7, the inner cavity of card slot 7 is provided with sliding cavity 16 on one side, pin 8 is slidably installed in sliding cavity 16, one end of pin 8 is fixedly connected with spring 9, the end of spring 9 away from pin 8 is fixedly connected on the inner wall of sliding cavity 16, the inner cavity of groove 5 is fixedly installed with positioning assembly matched with pin 8 on one side.

[0030] The specific use process is as follows: the pipe one 1 and the pipe two 2 are inserted into each other at both ends, wherein the top end of the pipe one 1 is inserted into the pipe two 2, that is, the socket 3 is inserted into the pipe two 2, the bottom end of the pipe two 2 is inserted into the protection piece 4, and the bottom end of the pipe two 2 is also sleeved on the end of the pipe one 1, in the process of insertion, the plug-in block 6 is inserted into the corresponding position in the protection piece 4, it should be noted that the four plug-in blocks 6 are respectively inserted into the corresponding grooves 5 in the protection piece 4, after insertion, the pipe two 2 can be positioned in the protection piece 4, and the pipe one 1 can also be positioned in the pipe two 2, it should be noted that the protection piece 4 and the pipe one 1 are welded together or integrally formed by other means, so the protection piece 4 and the pipe one 1 are an integral whole, so the pipe one 1 and the pipe two 2 are connected together, then the worker can hold the welding gun to weld the joint of the pipe one 1 and the pipe two 2, that is, the joint of the protection piece 4 and the pipe two 2, so as to quickly complete the welding work of the steel pipe, the whole welding work is easy, labor-saving, fast, efficient, and does not need to use professional welding equipment, can be used in any working environment, reduces the investment of equipment cost, provides convenience for the user's work, wherein when the plug-in block 6 is inserted into the corresponding groove 5, the locking pin 8 installed on the plug-in block 6 is first extruded by the spring locking piece 15 on the fixed plate 10, then the locking pin 8 enters the corresponding locking slot 7, the compression spring 9 is compressed, until the locking pin 8 is aligned with the recess on the spring locking piece 15, then the spring 9 pops out the inner cavity of the locking slot 7, then the locking pin 8 is locked into the recess on the spring locking piece 15, and the temporary positioning is completed, then as the pipe two 2 continues to be inserted, the locking pin 8 will move out from the inside of the current spring locking piece 15, at the same time the spring locking piece 15 will extrude the locking pin 8 into the corresponding locking slot 7, then when the locking pin 8 moves to the gap position between the two spring locking pieces 15, the spring 9 will pop out the inner cavity of the locking slot 7 again, until the locking pin 8 touches the next spring locking piece 15, and is extruded into the corresponding locking slot 7 again, at the same time the compression spring 9 is compressed, then the locking pin 8 is aligned with the recess of the next spring locking piece 15, and then pops out the inner cavity of the locking slot 7 under the action of the corresponding spring 9, then the locking pin 8 is locked into the inside of the spring locking piece 15, so as to reciprocate until the plug-in block 6 is fully inserted into the groove 5, so the butt joint work of the pipe one 1 and the pipe two 2 is completed, then the welding work can be carried out, it should be noted that the spring locking piece 15 is locked in the locking slot 7, the locking pin 8 can slide in the sliding cavity 16 and the locking slot 7 at the same time, when the plug-in block 6 moves, the spring locking piece 15 will be extruded and deformed first, and then moved out from the corresponding locking slot 7, so that the locking pin 8 can also move out from the inside of the spring locking piece 15, when the spring locking piece 15 is aligned with the locking slot 7, it will restore again and be locked into the corresponding locking slot 7, it should be noted that the technical solution can be directly inserted and assembled in the environment with low working requirements, without welding processing,More flexible options for users to provide work, both low requirements of the work environment, but also to meet the high requirements of the work environment, spring card 15 is in the card slot 7, and with the change of the position of the card slot 7, spring card 15 will also make the corresponding deformation, so as to ensure that the spring card 15 can be flexibly removed and card into the card slot 7, ensure the stability of the plug 6 inserted into the groove 5, provide convenience for the user's work, after the insert 3 is inserted into the pipe two 2, the convex ring 11 is tightly attached to the inner wall of the pipe two 2 in the interference fit state, so that the insert 3 can be firmly inserted into the slot 17, that is, in the pipe two 2, thereby ensuring the firmness of the pipe one 1 and the pipe two 2 butt joint assembly, providing convenience for the user's work, after the insert 3 is inserted into the pipe two 2, the sealing ring 12 can seal the gap between the outer wall of the insert 3 and the inner wall of the pipe two 2, thereby ensuring the sealing of the pipeline connection, avoiding the leakage, providing convenience for the user's work, after the plug 6 is inserted into the groove 5, its bottom will touch the corresponding support block one 13, so as to limit the plug 6, ensure that the plug 6 can be accurately inserted into the groove 5, also ensure that the pipe one 1 and the pipe two 2 can be accurately butt jointed together, providing convenience for the user's subsequent welding work, after the plug 6 is inserted into the groove 5, the support block two 14 will be overlapped on the protection piece 4, so as to limit the plug 6, ensure that the plug 6 is accurately inserted into the groove 5, also ensure the accuracy of the butt joint of the pipe one 1 and the pipe two 2, provide convenience for the user's assembly work, the diameter of the slot 17 is greater than the diameter of the inner cavity of the pipe two 2, so that the inner cavity of the pipe two 2 forms a stepped boundary line, when the insert 3 is inserted into the slot 17, it will be blocked, limiting the butt joint of the pipe one 1 and the pipe two 2, ensuring the accuracy of the connection of the pipe one 1 and the pipe two 2, providing convenience for the user's work.

[0031] Therefore, the structure of the steel pipe is designed to be plastic at both ends of the steel pipe during the forming process of the steel pipe, one end of the steel pipe is plastic, and the other end is plastic. In the welding work, the two ends of the two steel pipes are inserted into each other, and then the user can easily weld the two steel pipes together, which reduces the work intensity of the user, improves the welding efficiency of the steel pipe, and reduces the cost investment, providing convenience for the user's work.

[0032] The positioning assembly comprises a fixed plate 10 fixedly installed in the groove 5, one side of the fixed plate 10 is fixedly connected with uniformly distributed spring cards 15, and the spring cards 15 are matched with the pin 8 and the card slot 7.

[0033] Specifically, the fixed plate 10 and the spring clamping piece 15 are arranged, the spring clamping piece 15 is clamped in the clamping groove 7, and as the position of the clamping groove 7 changes, the spring clamping piece 15 also deforms correspondingly, so that the spring clamping piece 15 can be flexibly moved out of and clamped into the clamping groove 7, the stability of the insertion block 6 inserted into the groove 5 is ensured, and convenience is provided for the user's work.

[0034] The surface of the socket 3 is integrally provided with a plurality of convex rings 11, and the surface of the convex ring 11 is tightly attached to the inner wall of the pipe two 2.

[0035] Specifically, the convex ring 11 is tightly attached to the inner wall of the pipe two 2 in an interference fit state after the socket 3 is inserted into the pipe two 2, so that the socket 3 can be firmly inserted into the insertion slot 17, that is, the pipe two 2, thereby ensuring the firmness of the butt joint assembly of the pipe one 1 and the pipe two 2, and providing convenience for the user's work.

[0036] The surface of the socket 3 is provided with a plurality of sealing rings 12, and the sealing ring 12 is lapped on the top of the corresponding convex ring 11.

[0037] Specifically, the sealing ring 12 can seal the gap between the outer wall of the socket 3 and the inner wall of the pipe two 2 after the socket 3 is inserted into the pipe two 2, thereby ensuring the sealing of the pipeline connection and avoiding leakage, and providing convenience for the user's work.

[0038] The surface of the pipe one 1 is fixedly connected with a plurality of support blocks one 13, and the top of the plurality of support blocks one 13 is fixedly connected with the protection piece 4.

[0039] Specifically, the bottom of the support block one 13 abuts against the corresponding support block one 13 after the insertion block 6 is inserted into the groove 5, so that the insertion block 6 can be limited, the insertion block 6 can be accurately inserted into the groove 5, and the pipe one 1 and the pipe two 2 can be accurately butt jointed, thereby providing convenience for the user's subsequent welding work.

[0040] The surface of the pipe two 2 is fixedly connected with a plurality of support blocks two 14, and the bottom of the support block two 14 is fixedly connected with the insertion block 6.

[0041] Specifically, the support block two 14 is lapped on the protection piece 4 after the insertion block 6 is inserted into the groove 5, so that the insertion block 6 can be limited, the insertion block 6 can be accurately inserted into the groove 5, and the pipe one 1 and the pipe two 2 can be accurately butt jointed, thereby providing convenience for the user's assembly work.

[0042] The bottom of the inner cavity of the pipe two 2 is provided with an insertion slot 17, and the insertion slot 17 is matched with the socket 3.

[0043] Specifically, the setting of the slot 17, the diameter of the slot 17 is greater than the diameter of the inner cavity of the pipe two 2, so that the inner cavity of the pipe two 2 forms a stepped boundary, when the socket 3 is inserted into the slot 17, it will be blocked, and the butt joint of the pipe one 1 and the pipe two 2 is limited, which guarantees the accuracy of the connection of the pipe one 1 and the pipe two 2, and provides convenience for the user's work.

[0044] It should be noted that the functions of each hardware in the present application are supported by a large number of mature technologies, which belong to the prior art. The essence of the present application is to optimize and combine the existing hardware and its connection method for specific application occasions to meet the adaptive needs of specific application occasions and solve the problems raised in the background art (not involving the improvement of hardware internal software).

[0045] The above is only a preferred embodiment of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A socket welded steel pipe for drainage works comprising a pipe piece one (1) and a pipe piece two (2), characterized in that: The top of the pipe one (1) is integrally connected with the socket piece (3), the top of the pipe one (1) is integrally connected with the protection piece (4) outside the socket piece (3), the bottom of the pipe two (2) is inserted into the protection piece (4), the socket piece (3) is inserted into the pipe two (2), four recesses (5) are arranged in the protection piece (4), the surface of the pipe two (2) is fixedly connected with four plug blocks (6) matched with the recesses (5), the surface of the plug block (6) is provided with equidistantly distributed clamping grooves (7), a sliding cavity (16) is arranged on one side of the clamping groove (7), a clamping pin (8) is slidably arranged in the sliding cavity (16), one end of the clamping pin (8) is fixedly connected with a spring (9), the end of the spring (9) away from the clamping pin (8) is fixedly connected with the inner wall of the sliding cavity (16), and a positioning assembly matched with the clamping pin (8) is fixedly arranged on one side of the recess (5).

2. A socketed welded steel pipe for drainage works according to claim 1, characterized in that: The positioning assembly comprises a fixed plate (10) fixedly arranged in the recess (5), and the fixed plate (10) is fixedly connected with uniformly distributed spring clamping pieces (15) on one side.

3. A socketed welded steel pipe for drainage works according to claim 2, characterized in that: The surface of the socket piece (3) is integrally provided with a plurality of convex rings (11), and the surface of the convex ring (11) is tightly attached to the inner wall of the pipe two (2).

4. A socketed welded steel pipe for drainage works according to claim 3, characterized in that: The surface of the socket piece (3) is provided with a plurality of sealing rings (12), and the sealing ring (12) is overlapped on the top of the corresponding convex ring (11).

5. A socketed welded steel pipe for drainage works according to claim 4, characterized in that: The surface of the pipe one (1) is fixedly connected with a plurality of support blocks one (13), and the top of the plurality of support blocks one (13) is fixedly connected with the protection piece (4).

6. A socketed welded steel pipe for drainage works according to claim 5, characterized in that: The surface of the pipe two (2) is fixedly connected with a plurality of support blocks two (14), and the bottom of the support block two (14) is fixedly connected with the plug block (6).

7. A socketed welded steel pipe for drainage works according to claim 6, characterized in that: The bottom of the pipe two (2) is provided with an insertion slot (17), and the insertion slot (17) is matched with the socket piece (3).