Weak current pipeline connecting device for civil engineering

Abstract

The utility model provides a civil engineering weak current pipeline connecting device which comprises a line pipe and a connecting portion connected with the end portion of the line pipe, the connecting portion comprises an outer pipe, an inner pipe, an inserting rod and sealing rings, a baffle ring is fixedly connected to the middle of the interior of the outer pipe, the inner pipe is fixedly sleeved with the baffle ring, the sealing rings close to the two ends are arranged outside the inner pipe in a sleeved mode, and the inserting rod is connected with the inserting rod. The end of the inner pipe is matched with an opening of the line pipe in an inserted mode, limiting blocks distributed in the axial direction are fixedly connected to the outer circumferential wall of the line pipe, and limiting grooves in clearance fit with the limiting blocks are formed in the inner circumferential wall of the outer pipe. According to the utility model, through the arrangement of the inner pipe, the outer pipe, the insertion rod, the limiting block, the limiting groove and the insertion hole, the line pipe can be in insertion sealing connection with other line pipes through the inner pipe after being cut, and through the arrangement of the insertion rod, the limiting block and the insertion hole, the line pipe and other line pipes are in a fastening sealing connection state; the convenience of connection according to the length of the wire pit during civil engineering weak current pipeline laying is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weak current conduits in civil engineering, and specifically relates to a weak current pipeline connection device for civil engineering. Background Technique

[0002] Weak current engineering is a classification of power applications. Power applications can be divided into strong current and weak current according to the strength of the power transmission. The electricity consumption of buildings and building complexes generally refers to weak current below 220V 50Hz AC, which mainly provides people with electrical energy and converts electrical energy into other forms of energy, such as air conditioning power consumption, lighting power consumption, motive power consumption, etc. Raceway is the general term for various pipelines, wires, cables, etc. During the implementation of weak current engineering, raceway pipes will be used. Among them, in civil engineering, raceway pipes will be buried underground. Specifically, during implementation, the ground is excavated, and then the raceway pipes are buried in the wire pits.

[0003] The utility model with the publication number CN220190403U proposes a pipeline connection device for weak current engineering, which relates to the technical field of raceway pipes. Through the design of the through groove block and the rubber plug-in, the rubber plug-in can be inserted into the inner wall of the through groove block to complete the movable insertion process of the ends of two raceway pipe bodies. At the same time, through the connection relationship design of the rotating plate and the rubber plug-in, the user can rotate the rotating plate so that the right side of the rotating plate is movably connected to the left side of the through groove block, that is, the function of firmly connecting the ends of two raceway pipe bodies is realized. The connection can be completed without the aid of other tools, which is convenient for users.

[0004] However, the above-mentioned existing technology still has the following deficiencies when laying underground wires in civil engineering: A large number of pipeline tubes are required to complete the laying in the pits for laying wires in civil engineering by connecting the head and tail. In the existing technology, a left protruding tube and a right protruding tube are fixedly arranged at both ends of the pipeline tube respectively, and adjacent pipeline tubes are connected by inserting the left protruding tube and the right protruding tube. However, this connection method has high requirements for the length of the pipeline. For example, the length of the pipeline tube is usually fixed, so the wire pit needs to be excavated according to the length of the pipeline tube. Simply put, the pipeline tube cannot be cut and then connected, so the workload of laying the pipeline will be increased.

[0005] Therefore, the utility model provides a weak current pipeline connection device for civil engineering. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a weak current pipeline connection device for civil engineering to solve the problems raised in the above background technology. The utility model has the function of connecting pipeline tubes of any length, improves the convenience of laying weak current pipelines in civil engineering, and reduces the difficulty of laying.

[0007] To achieve the above object, the utility model is realized through the following technical solutions: A weak current pipeline connection device for civil engineering, including a pipeline and an adapter connected to the end of the pipeline. The adapter includes an outer pipe, an inner pipe, a plug rod and a sealing ring. A retaining ring is fixedly connected to the middle of the outer pipe. The inner pipe is fixedly sleeved in the retaining ring. Sealing rings are sleeved on the outside of the two ends of the inner pipe. The end of the inner pipe is inserted and matched with the mouth of the pipeline. A limiting block distributed along the axial direction is fixedly connected to the outer peripheral wall of the pipeline. A limiting groove that is in clearance fit with the limiting block is opened on the inner peripheral wall of the outer pipe. A jack that penetrates through the limiting groove and is matched with the plug rod is opened on the outer peripheral wall of the outer pipe. A positioning hole that is arranged along the length direction and is used in cooperation with the plug rod is opened on one side of the limiting block.

[0008] Further, the inner pipe includes a middle pipe and conical pipes fixedly arranged at both ends of the middle pipe. The small ends of the conical pipes at both ends of the middle pipe face outwards. The sealing ring is sleeved on the outer conical wall of the conical pipe.

[0009] Further, an annular groove is opened on the outer conical wall of the conical pipe. The sealing ring is sleeved on the annular groove.

[0010] Further, annular protrusions distributed along the length direction are fixedly connected to the inner peripheral wall of the pipeline.

[0011] Further, the number of the limiting blocks is two and they are symmetrical with respect to the pipeline.

[0012] Further, the jack is a threaded hole structure that is screwed and connected with the plug rod. A conical rod that is inserted and matched with the positioning hole is welded to one end of the plug rod.

[0013] Further, a handle rod is welded to the other end of the plug rod.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, by setting the inner pipe, the outer pipe, the plug rod, the limiting block, the limiting groove and the jack, the pipeline can still be inserted and sealedly connected with other pipelines through the inner pipe after being cut. Moreover, the arranged plug rod, limiting block and jack enable the pipeline to be in a tightly sealed connection state with other pipelines, greatly improving the convenience of connecting according to the length of the wire pit during the laying of weak current pipelines for civil engineering.

[0016] 2. In the utility model, conical pipes are arranged at both ends of the inner pipe, and sealing rings are sleeved on the outside of the conical pipes. The arrangement of the conical pipes greatly reduces the insertion resistance between the inner pipe and the pipelines at its two ends, and at the same time improves the sealing degree after connection. This kind of arrangement reduces the operation difficulty when inserting the two pipelines and the inner pipe, and has the advantage of labor-saving connection. Description of the Drawings

[0017] Figure 1 Schematic diagram of the connection part of a weak current pipeline connection device for civil engineering of the present utility model and the structure after the explosion expansion of two pipeline tubes;

[0018] Figure 2 Schematic diagram of the cooperation between the outer tube and the insertion rod of a weak current pipeline connection device for civil engineering of the present utility model;

[0019] Figure 3 is Figure 1 Schematic diagram of the combined structure.

[0020] In the figure: 1, pipeline tube; 11, limit block; 111, positioning hole; 12, annular protrusion; 3, connection part; 31, outer tube; 311, retaining ring; 312, limit groove; 313, insertion hole; 32, inner tube; 321, middle tube; 322, conical tube; 3221, annular groove; 33, insertion rod; 331, conical rod; 332, handle rod; 34, sealing ring. Specific implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0022] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a weak current pipeline connection device for civil engineering, including a pipeline tube 1 and a connection part 3 connecting the end of the pipeline tube 1. The connection part 3 includes an outer tube 31, an inner tube 32, an insertion rod 33 and a sealing ring 34. A retaining ring 311 is fixedly connected to the middle of the outer tube 31. The inner tube 32 is fixedly sleeved in the retaining ring 311. Sealing rings 34 are sleeved on the outside of the inner tube 32 near both ends. The end of the inner tube 32 is inserted and matched with the mouth of the pipeline tube 1. When in use, both ends of the inner tube 32 are respectively inserted into two pipeline tubes 1 to be connected, and the sealing ring 34 plays a role in sealing and waterproofing.

[0023] Furthermore, a limit block 11 distributed along the axial direction is fixedly connected to the outer peripheral wall of the pipeline tube 1. A limit groove 312 that is in clearance fit with the limit block 11 is opened on the inner peripheral wall of the outer tube 31. When the pipeline tube 1 is sleeved into the outer tube 31, the limit block 11 is located in the limit groove 312. An insertion hole 313 that penetrates through the limit groove 312 and is matched with the insertion rod 33 is opened through the outer peripheral wall of the outer tube 31. The insertion hole 313 is close to both ends of the outer tube 31. A positioning hole 111 that is arranged along the length direction and is used in cooperation with the insertion rod 33 is opened on one side of the limit block 11. After the insertion rod 33 is inserted from one end of the insertion hole 313 and extends into the positioning hole 111, the pipeline tube 1 and the outer tube 31 are locked at this time. The length of the pipeline tube 1 can be adjusted according to the length of the wire pit. When adjusting, a cutting machine is used to directly cut the pipeline tube 1 so that the cut pipeline tube 1 meets the length required for laying.

[0024] In this embodiment, the inner tube 32 includes a middle tube 321 and conical tubes 322 fixedly arranged at both ends of the middle tube 321. The small ends of the conical tubes 322 located at both ends of the middle tube 321 face outward. The sealing ring 34 is sleeved on the outer conical wall of the conical tube 322. When connecting two wire tubes 1, the small end of the conical tube 322 will be inserted into the wire tube 1 with a gap. When the sealing ring 34 presses against the inner wall of the wire tube 1, the docking of the wire tube 1 and the inner tube 32 is completed. This setting makes the docking of the wire tube 1 and the inner tube 32 more labor-saving and smooth. An annular groove 3221 is formed on the outer conical wall of the conical tube 322, and the sealing ring 34 is sleeved on the annular groove 3221. This setting enables the sealing ring 34 to have the effect of preventing detachment.

[0025] Furthermore, annular protrusions 12 arranged along the length direction are fixedly connected to the inner peripheral wall of the wire tube 1. The sealing ring 34 will press against some of the annular protrusions 12. This setting can further improve the sealing degree after the inner tube 32 and the wire tube 1 are inserted and connected.

[0026] In this embodiment, the number of the limit blocks 11 is two and they are symmetrical with respect to the wire tube 1. This setting improves the uniformity of the force on the wire tube 1. That is to say, there are two symmetrical insertion rods 33 for limiting between the wire tube 1 and the outer tube 31, thereby making the firm connection between the wire tube 1 and the outer tube 31 more reliable.

[0027] In this embodiment, the jack 313 is a threaded hole structure that is screwed and connected to the insertion rod 33. A conical rod 331 that is inserted and matched with the positioning hole 111 is welded to one end of the insertion rod 33. The insertion rod 33 is driven by screwing to drive the conical rod 331 to be pressed into the positioning hole 111. This setting has the effect of pre-tightly connecting the wire tube 1 and the inner tube 32, and at the same time reduces the installation difficulty of the insertion rod 33.

[0028] Furthermore, a handle rod 332 is welded to the other end of the insertion rod 33. This handle rod 332 is a hand-held component for manually rotating the insertion rod 33.

[0029] Working principle: During use, after a wire tube 1 is cut as required, it is inserted into the conical tube 322 of the inner tube 32. When the sealing ring 34 abuts against the annular protrusions 12 in the current wire tube 1, the insertion rod 33 is screwed and inserted into the adjacent jack 313. The conical rod 331 presses against the positioning hole 111 on the limit block 11 in the limit groove 312. When the conical rod 331 completely enters the positioning hole 111, the current wire tube 1 and the outer tube 31 are firmly connected. Connect the other wire tube 1 and the conical tube 322 at the other end of the inner tube 32 in this way.

[0030] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weak current pipeline connection device for civil engineering, comprising a pipeline (1) and a connection part (3) connected to the end of the pipeline (1), characterized in that, The connecting part (3) includes an outer tube (31), an inner tube (32), a plug rod (33) and a sealing ring (34). A retaining ring (311) is fixedly connected to the middle inside the outer tube (31). The inner tube (32) is fixedly sleeved inside the retaining ring (311). The sealing ring (34) is sleeved on the outer part of the inner tube (32) near both ends. The end of the inner tube (32) is in plug-in fit with the mouth of the wire tube (1). The outer peripheral wall of the wire tube (1) is fixedly connected with limiting blocks (11) distributed along the axis. The inner peripheral wall of the outer tube (31) is provided with a limiting groove (312) in clearance fit with the limiting blocks (11). A jack (313) passing through the limiting groove (312) and cooperating with the plug rod (33) is penetratingly opened on the outer peripheral wall of the outer tube (31). A positioning hole (111) arranged along the length direction and cooperating with the plug rod (33) is opened on one side of the limiting block (11).

2. The civil engineering weak current pipeline connection device according to claim 1, characterized in that: The inner tube (32) includes a middle tube (321) and conical tubes (322) fixedly arranged at both ends of the middle tube (321). The small ends of the conical tubes (322) at both ends of the middle tube (321) face outwards. The sealing ring (34) is sleeved on the outer conical wall of the conical tube (322).

3. The civil engineering weak current pipeline connection device according to claim 2, characterized in that: An annular groove (3221) is opened on the outer conical wall of the conical tube (322). The sealing ring (34) is sleeved on the annular groove (3221).

4. The civil engineering weak current pipeline connection device according to claim 2, characterized in that: The inner peripheral wall of the wire tube (1) is fixedly connected with annular protrusions (12) arranged and distributed along the length direction.

5. The civil engineering weak current pipeline connection device according to claim 1, characterized in that: The number of the limiting blocks (11) is two and they are symmetric with respect to the wire tube (1).

6. The civil engineering weak current pipeline connection device according to claim 1, characterized in that: The jack (313) is a threaded hole structure in screwed connection with the plug rod (33). A conical rod (331) in plug-in fit with the positioning hole (111) is welded to one end of the plug rod (33).

7. The civil engineering weak current pipeline connection device according to claim 6, characterized in that: A handle rod (332) is welded to the other end of the plug rod (33).

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