A socketed plastic coated steel pipe

Abstract

The utility model relates to a kind of related technical fields of plastic coated steel pipe, especially a socket type plastic coated steel pipe, including steel pipe mechanism and connecting mechanism, the connecting mechanism includes: lower connecting ring, with the lower side connection of steel pipe mechanism outside;Spring, with the bottom of lower connecting ring connection;Control ring, with the bottom of spring connection;Connecting rod, with the top of control ring connection;Upper connecting ring, with the upper side connection of steel pipe mechanism outside, and its lower surface and the upper surface of lower connecting ring are pasted;Connecting hole, set in the upper connecting ring and the top of lower connecting ring, and its inner wall and the side surface sliding connection of connecting rod;In the utility model, when steel pipe is collided by external force, upper connecting ring or lower connecting ring provides support force for it, guarantee the stability of the relative position of socket pipe and spigot pipe, and through connecting rod, the misplacement of upper connecting ring or lower connecting ring is avoided, solve the problem that socket pipe and spigot pipe connection place is stressed and support force is unevenly distributed, thus easy to bend or separate connection, solve the problem in prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic-coated steel pipes, and in particular to a socket-type plastic-coated steel pipe. Background Technology

[0002] Plastic-coated steel pipe, also known as plastic-coated pipe, steel-plastic composite pipe, or plastic-coated composite steel pipe, is a steel-plastic composite pipe with a steel pipe as the base material. A layer of plastic anti-corrosion coating is fused to the inner surface of the steel pipe (base pipe) or to both the inner and outer surfaces through processes such as spraying, rolling, dipping, or suction. Plastic-coated steel pipe has excellent corrosion resistance and relatively low frictional resistance. Two sections of plastic-coated steel pipe can be connected by a socket joint.

[0003] The prior art can be referenced in Chinese authorized utility model patent with publication number CN218378236U, which specifically describes a socket-type plastic-coated steel pipe, comprising: a socket pipe and a plug pipe, with a connecting structure between the socket pipe and the plug pipe for connecting them. The connecting structure includes a mating block fixedly connected to the plug pipe, and a mating groove that mates with the mating block is formed on the end face of the socket pipe. The connecting structure also includes multiple fastening components, including a sliding plate, a first fixing frame, and a locking component, with the sliding plate slidably connected to the plug pipe. This prior art uses multiple locking components on the socket pipe to restrict the sliding of multiple sliding plates, thereby enabling the plug pipe to be more securely connected to the socket pipe, thus minimizing the possibility of the socket pipe and plug pipe separating again after connection, and improving the installation efficiency of the plastic-coated pipe.

[0004] The aforementioned prior art has the following shortcomings in actual operation: In actual use, if the prior art is impacted by an object on one side or subjected to pressure on one side, the connection between the two steel pipes lacks a limiting and supporting point for the steel pipe, which will cause the connection between the receiving pipe and the insert pipe to detach. There is a problem that the supporting force is unevenly distributed when the connection between the receiving pipe and the insert pipe is subjected to force, thus making it easy to bend. Utility Model Content

[0005] The purpose of this utility model is to provide a socket-type plastic-coated steel pipe to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A socket-type plastic-coated steel pipe includes a steel pipe mechanism and a connecting mechanism, wherein the connecting mechanism includes:

[0008] The lower connecting ring is connected to the lower outer side of the steel pipe mechanism;

[0009] The spring is connected to the bottom of the lower connecting ring;

[0010] The control ring is connected to the bottom of the spring, and its inner wall is slidably connected to the side of the steel pipe mechanism;

[0011] The connecting rod is connected to the top of the control ring;

[0012] The upper connecting ring is connected to the upper outer side of the steel pipe mechanism, and its lower surface is in contact with the upper surface of the lower connecting ring;

[0013] A connecting hole is formed at the top of the upper connecting ring and the lower connecting ring, and its inner wall is slidably connected to the side of the connecting rod.

[0014] Optionally, the steel pipe mechanism includes a receiving pipe and a insert pipe, wherein the upper outer side of the receiving pipe is connected to the inner wall of the lower connecting ring, and the lower outer side of the insert pipe is connected to the inner wall of the upper connecting ring.

[0015] Optionally, the steel pipe mechanism further includes a slot and a plug ring, the slot being formed at the top of the receiving pipe, the top of the plug ring being connected to the bottom of the plug pipe, and the side of the plug ring being slidably connected to the inner wall of the slot.

[0016] Optionally, a fixing mechanism for fixing the position of the connecting rod is provided above the connecting rod. The fixing mechanism includes a rotating groove and a rotating ring. The rotating groove is opened on the side of the insertion tube, and the side of the rotating ring is rotatably connected to the inner wall of the rotating groove.

[0017] Optionally, the fixing mechanism further includes a rotating tube and a moving port, wherein the top of the rotating tube is connected to the bottom of the rotating ring, and the moving port is evenly distributed at the bottom of the rotating tube.

[0018] Optionally, the retaining mechanism further includes a retaining groove and a retaining hole. The retaining groove is formed on one side of the rotating groove, the inner wall of the retaining groove is in contact with the side of the connecting rod, a retaining block is connected below the inner wall of the retaining groove, and the retaining hole is formed above the side of the connecting rod. The inner wall of the retaining hole is slidably connected to the side of the retaining block.

[0019] Optionally, a fixing mechanism for improving the stability of the retaining mechanism is provided above the rotating tube. The fixing mechanism includes a fixing plate and a threaded hole. The fixing plate is connected to one side of the insertion tube, and the threaded hole is formed on the top of the fixing plate and the top of the rotating tube.

[0020] Optionally, the fixing mechanism further includes a threaded groove and a bolt, the threaded groove being formed at the top of the connecting rod, and the side of the bolt being threadedly connected to the threaded hole and the inner wall of the threaded groove in sequence.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] After releasing the control ring to move downwards, the connecting rod, driven by the spring's own elasticity, inserts into the connecting holes of the upper and lower connecting rings, keeping them in an overlapping state. In this invention, when the steel pipe is subjected to external force, the upper or lower connecting ring provides support, ensuring the stability of the relative position of the receiving pipe and the insert pipe. Furthermore, the connecting rod prevents misalignment of the upper or lower connecting ring, solving the problem of uneven distribution of support force at the connection point of the receiving pipe and the insert pipe, which can easily lead to bending or detachment. This addresses the problems in the prior art. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the external structure of this application from a left-side, upward-looking perspective;

[0025] Figure 2 This is a schematic diagram of the left-side top-view cross-sectional structure of this application;

[0026] Figure 3 This is an enlarged schematic diagram of Part A of the structure of this application;

[0027] Figure 4 This is a schematic diagram of the right-side top view of the structure of this application;

[0028] Figure 5 This is an enlarged schematic diagram of Part B of this application;

[0029] Figure 6 This is a schematic diagram of the fixed mechanism structure viewed from the left and looking up in this application.

[0030] Reference numerals: 1. Steel pipe structure; 101. Receiving pipe; 102. Slot; 103. Insert ring; 104. Inserting pipe;

[0031] 2. Connecting mechanism; 201. Lower connecting ring; 202. Spring; 203. Control ring; 204. Connecting rod; 205. Upper connecting ring; 206. Connecting hole;

[0032] 3. Retention mechanism; 301. Rotary groove; 302. Rotary ring; 303. Rotary tube; 304. Moving port; 305. Retention groove; 306. Retention block; 307. Retention hole;

[0033] 4. Fixing mechanism; 401. Fixing plate; 402. Threaded hole; 403. Threaded groove; 404. Bolt. Detailed Implementation

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] Given the current technology, in actual use, if one side is hit by an object or subjected to pressure on one side, the connection between the two steel pipes lacks a limiting and supporting point for the steel pipe, which will cause the connection between the receiving pipe and the insert pipe to detach. This results in uneven distribution of supporting force at the connection between the receiving pipe and the insert pipe, making it prone to bending.

[0037] like Figure 1-6 As shown, this utility model embodiment provides a socket-type plastic-coated steel pipe, which includes a steel pipe mechanism 1 and a connecting mechanism 2, among other parts.

[0038] The upper connecting ring 201 is connected to the lower side of the steel pipe mechanism 1. A spring 202 is connected to the bottom of the lower connecting ring 201, and a control ring 203 is connected to the bottom of the spring 202. The inner wall of the control ring 203 is slidably connected to the side of the steel pipe mechanism 1. A connecting rod 204 is connected to the top of the control ring 203, and the connecting rod 204 is located inside the spring 202. The side of the upper connecting ring 205 is connected to the upper side of the steel pipe mechanism 1. Connecting holes 206 are evenly distributed at the top of the upper connecting ring 205 and the lower connecting ring 201, and the inner wall of the connecting hole 206 is slidably connected to the side of the connecting rod 204. In a preferred embodiment, the lower surface of the upper connecting ring 205 is in contact with the upper surface of the lower connecting ring 201.

[0039] In use, after releasing the control to move the control ring 203 downward, the connecting rod 204 is inserted into the connecting hole 206 opened by the upper connecting ring 205 and the lower connecting ring 201 under the drive of the spring 202 itself, keeping the upper connecting ring 205 and the lower connecting ring 201 in an overlapping state.

[0040] Furthermore, in order to provide support components for the connecting mechanism 2, the plastic-coated steel pipe also includes a steel pipe mechanism 1.

[0041] Specifically, as shown in Figures 1-3, the steel pipe mechanism 1 includes a receiving pipe 101 and a insertion pipe 104.

[0042] The outer upper part of the receiving pipe 101 is connected to the inner wall of the lower connecting ring 201, and the outer lower part of the insertion pipe 104 is connected to the inner wall of the upper connecting ring 205.

[0043] Specifically, the steel pipe mechanism 1 also includes a slot 102 and a ring 103.

[0044] The slot 102 is located on the top of the receiving tube 101, the top of the insertion ring 103 is connected to the bottom of the insertion tube 104, and the side of the insertion ring 103 is slidably connected to the inner wall of the slot 102.

[0045] In use, the lower insertion tube 104 inserts the insertion ring 103 into the slot 102 opened in the receiving tube 101 to connect the two steel pipe sections.

[0046] Furthermore, in order to fix the position of the connecting rod 204, the plastic-coated steel pipe also includes a retaining mechanism 3.

[0047] Specifically, such as Figure 2-6 As shown, the retaining mechanism 3 includes a rotating groove 301 and a rotating ring 302.

[0048] The rotating groove 301 is formed on the side of the insertion tube 104, and the side of the rotating ring 302 is rotatably connected to the inner wall of the rotating groove 301.

[0049] Specifically, the fixing mechanism 3 also includes a rotating tube 303 and a moving port 304.

[0050] The top of the rotating tube 303 is connected to the bottom of the rotating ring 302, and the movable ports 304 are evenly distributed at the bottom of the rotating tube 303.

[0051] Specifically, the retention mechanism 3 also includes a retention groove 305 and a retention hole 307.

[0052] The retaining groove 305 is located on one side of the rotating groove 301. The inner wall of the retaining groove 305 is in contact with the side of the connecting rod 204. A retaining block 306 is connected to the lower part of the inner wall of the retaining groove 305. A retaining hole 307 is located above the side of the connecting rod 204. The inner wall of the retaining hole 307 is slidably connected to the side of the retaining block 306.

[0053] In use, rotating the rotating tube 303 causes the rotating ring 302 to rotate within the rotating groove 301 until the inner wall of the retaining groove 305 on the right side of the moving port 304 is in contact with the side of the connecting rod 204. At the same time, the retaining block 306 is inserted into the retaining hole 307 opened on the side of the connecting rod 204, thus fixing the positions of the upper connecting ring 205 and the lower connecting ring 205 that limit the connecting rod 204.

[0054] Furthermore, in order to improve the stability of the retaining mechanism 3, the plastic-coated steel pipe also includes a fixing mechanism 4.

[0055] Specifically, such as Figure 2-6 As shown, the fixing mechanism 4 includes a fixing plate 401 and a threaded hole 402.

[0056] The fixing plate 401 is connected to one side of the insertion tube 104, and the threaded hole 402 is opened on the top of the fixing plate 401 and the top of the rotating tube 303.

[0057] Specifically, the fixing mechanism 4 also includes a threaded groove 403 and a bolt 404.

[0058] The threaded groove 403 is formed at the top of the connecting rod 204, and the side of the bolt 404 is threadedly connected to the threaded hole 402 and the inner wall of the threaded groove 403 in sequence.

[0059] In use, rotate the bolt 404 to connect it to the threaded hole 402 of the fixing plate 401 until the side of the bolt 404 is threaded to the threaded groove 403, to prevent the rotating tube 303 from rotating without human intervention and to ensure the stability of the position of the rotating tube 303.

[0060] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A socket-type plastic-coated steel pipe, characterized in that... ,include: The steel pipe mechanism (1) and the connecting mechanism (2) include: The lower connecting ring (201) is connected to the lower outer side of the steel pipe mechanism (1); Spring (202) is connected to the bottom of the lower connecting ring (201); The control ring (203) is connected to the bottom of the spring (202), and its inner wall is slidably connected to the side of the steel pipe mechanism (1); The connecting rod (204) is connected to the top of the control ring (203); The upper connecting ring (205) is connected to the upper outer side of the steel pipe mechanism (1), and its lower surface is in contact with the upper surface of the lower connecting ring (201); A connecting hole (206) is formed on the top of the upper connecting ring (205) and the lower connecting ring (201), and its inner wall is slidably connected to the side of the connecting rod (204).

2. The plastic-coated steel pipe according to claim 1, characterized in that: The steel pipe mechanism (1) includes a receiving pipe (101) and a insert pipe (104). The upper outer side of the receiving pipe (101) is connected to the inner wall of the lower connecting ring (201), and the lower outer side of the insert pipe (104) is connected to the inner wall of the upper connecting ring (205).

3. The plastic-coated steel pipe according to claim 2, characterized in that: The steel pipe mechanism (1) further includes a slot (102) and a plug ring (103). The slot (102) is opened on the top of the receiving pipe (101). The top of the plug ring (103) is connected to the bottom of the plug pipe (104). The side of the plug ring (103) is slidably connected to the inner wall of the slot (102).

4. The plastic-coated steel pipe according to claim 1, characterized in that: A fixing mechanism (3) for fixing the position of the connecting rod (204) is provided above the connecting rod (204). The fixing mechanism (3) includes a rotating groove (301) and a rotating ring (302). The rotating groove (301) is opened on the side of the insertion tube (104), and the side of the rotating ring (302) is rotatably connected to the inner wall of the rotating groove (301).

5. The plastic-coated steel pipe according to claim 4, characterized in that: The fixing mechanism (3) further includes a rotating tube (303) and a moving port (304). The top of the rotating tube (303) is connected to the bottom of the rotating ring (302), and the moving port (304) is evenly opened at the bottom of the rotating tube (303).

6. The plastic-coated steel pipe according to claim 5, characterized in that: The retaining mechanism (3) further includes a retaining groove (305) and a retaining hole (307). The retaining groove (305) is opened on one side of the rotating groove (301). The inner wall of the retaining groove (305) is in contact with the side of the connecting rod (204). A retaining block (306) is connected below the inner wall of the retaining groove (305). The retaining hole (307) is opened above the side of the connecting rod (204). The inner wall of the retaining hole (307) is slidably connected to the side of the retaining block (306).

7. The plastic-coated steel pipe according to claim 5, characterized in that: A fixing mechanism (4) for improving the stability of the retaining mechanism (3) is provided above the rotating tube (303). The fixing mechanism (4) includes a fixing plate (401) and a threaded hole (402). The fixing plate (401) is connected to one side of the insertion tube (104). The threaded hole (402) is opened on the top of the fixing plate (401) and the top of the rotating tube (303).

8. The plastic-coated steel pipe according to claim 7, characterized in that: The fixing mechanism (4) also includes a threaded groove (403) and a bolt (404). The threaded groove (403) is opened on the top of the connecting rod (204), and the side of the bolt (404) is threadedly connected to the inner wall of the threaded hole (402) and the threaded groove (403) in sequence.

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