Connecting structure of polyurethane prefabricated directly-buried pipe and overhead pipe

Abstract

The utility model discloses a connecting structure of a polyurethane prefabricated directly-buried pipe and an overhead pipe, and relates to the technical field of heat supply pipelines. Comprising a connecting pipe; the outer wall of the fixing structure is in sliding connection with the outer wall of the connecting pipe; the outer wall of the anti-skid structure is fixedly connected with the inner wall of the connecting pipe; the fixing structure comprises a clamping block, the outer wall of the clamping block is fixedly connected with the inner wall of the connecting pipe, the outer wall of the clamping block is slidably connected with a stabilizing cylinder, the outer wall of the stabilizing cylinder is fixedly connected with a sealing ring, and the outer wall of the sealing ring is slidably connected with a fixing block. Compared with a traditional mode that a plurality of screws need to be manually installed to connect the polyurethane prefabricated directly-buried pipe and the overhead pipe, the connecting structure is easy and convenient to operate, installation time consumption and human input are reduced, the pipeline laying efficiency is effectively improved, rubber blocks on the clamping blocks are matched to be tightly attached to the pipeline wall, and multiple sealing guarantees are formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat supply pipeline, specifically relates to a kind of polyurethane prefabricated direct-buried pipe and overhead pipe's connecting structure. BACKGROUND

[0002] In various pipeline engineering systems, the connection of polyurethane prefabricated direct-buried pipe and overhead pipe is the key link to ensure the stable and efficient operation of the entire pipe network. With the continuous development of industry, construction and other fields, the safety, stability and overall durability of pipeline fluid transportation have become increasingly stringent requirements. Traditional pipeline connection methods applied to the butt joint of polyurethane prefabricated direct-buried pipe and overhead pipe require manual installation of many screws to connect the pipelines together, which is time-consuming and labor-intensive, reducing the efficiency of pipeline laying. In view of the above problems, to improve the efficiency and quality of pipeline laying and reduce waste, the utility model emerges as the times require. SUMMARY

[0003] To solve the technical problems of the prior art, the utility model adopts the technical scheme of a connecting structure for polyurethane prefabricated direct-buried pipe and overhead pipe, which comprises a connecting pipe, a fixing structure, an anti-slip structure, the outer wall of the fixing structure is slidably connected with the outer wall of the connecting pipe, the outer wall of the anti-slip structure is fixedly connected with the inner wall of the connecting pipe, the fixing structure comprises a clamping block, the outer wall of the clamping block is fixedly connected with the inner wall of the connecting pipe, the outer wall of the clamping block is slidably connected with a stabilizing cylinder, the outer wall of the stabilizing cylinder is fixedly connected with a sealing ring, the outer wall of the sealing ring is slidably connected with a fixing block, the fixing block is screwed with the external thread of the connecting pipe, the extrusion sliding block and the sealing ring are pushed, the rubber block on the clamping block is tightly attached to the pipe wall, and multiple seals are formed.

[0004] The inner wall of the connecting pipe is fixedly connected with a first limiting block and a second limiting block, and the outer wall of the connecting pipe is fixedly connected with an external thread.

[0005] The outer wall of the first limiting block is fixedly connected with the outer wall of the clamping block, the outer wall of the clamping block is fixedly connected with a rubber block, and the inner wall of the fixing block is threadedly connected with the external thread.

[0006] The anti-slip structure comprises a supporting block, the outer wall of the supporting block is fixedly connected with an anti-slip spring and an anti-slip rod, and the top of the anti-slip rod is slidably connected with an anti-slip block.

[0007] The outer wall of the anti-slip block is fixedly connected with a friction block, and the end of the anti-slip spring away from the supporting block is fixedly connected with the anti-slip block.

[0008] The outer wall of the anti-skid block is in sliding connection with the groove of the fixed block, and the outer wall of the supporting block is in fixed connection with the inner wall of the connecting pipe.

[0009] The utility model discloses the beneficial effect is as follows:

[0010] 1. The utility model discloses a fixed structure, compared with the traditional need manual installation many screws to connect the mode of polyurethane prefabricated direct -buried pipe and overhead pipe, this connection structure is easy to operate, reduces the installation time -consuming and manpower input, effectively improves pipeline laying efficiency, satisfies large -scale pipeline engineering quick construction demand, in fixed structure, through fixed block and connecting pipe outer thread screwing, promote extrusion slide block and sealing washer, cooperate with the rubber block of card block closely adhere to pipeline wall, form multiple seal guarantee.

[0011] 2. The utility model discloses a fixed structure, compared with the traditional need manual installation many screws to connect the mode of polyurethane prefabricated direct -buried pipe and overhead pipe, this connection structure is easy to operate, reduces the installation time -consuming and manpower input, effectively improves pipeline laying efficiency, satisfies large -scale pipeline engineering quick construction demand, in fixed structure, through fixed block and connecting pipe outer thread screwing, promote extrusion slide block and sealing washer, cooperate with the rubber block of card block closely adhere to pipeline wall, form multiple seal guarantee. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the internal split schematic diagram of the fixed structure of the utility model;

[0014] Figure 3 It is the structure schematic diagram of the connecting pipe of the utility model;

[0015] Figure 4 It is the structure schematic diagram of the anti -skid structure of the utility model.

[0016] In the drawing: 1, connecting pipe;2, fixed structure;3, anti -skid structure;21, card block;22, rubber block;23, stabilizing cylinder;24, sealing washer;25, fixed block;11, first limit block;12, second limit block;13, outer thread;31, supporting block;32, anti -skid spring;33, anti -skid rod;34, anti -skid block;35, friction block. DETAILED DESCRIPTION

[0017] The embodiments of the present application are given for illustration and description only, and are not intended to be exhaustive or to limit the present application to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application to thereby enable others skilled in the art to best utilize the present application in various embodiments and with various modifications as are suited to the particular use contemplated.

[0018] Embodiment:

[0019] Please refer to Figure 1 - Figure 4 The utility model provides a technical scheme: a kind of polyurethane prefabricated direct-buried pipe and overhead pipe's connecting structure, comprising: connecting pipe 1;Fixed structure 2, the outer wall of fixed structure 2 is slidably connected with the outer wall of connecting pipe 1;Anti -skid structure 3, the outer wall of anti -skid structure 3 is fixedly connected with the inner wall of connecting pipe 1;Fixed structure 2 includes clamping block 21, the outer wall of clamping block 21 is fixedly connected with the inner wall of connecting pipe 1, the outer wall of clamping block 21 is slidably connected with stabilizing cylinder 23, the outer wall of stabilizing cylinder 23 is fixedly connected with sealing ring 24, the outer wall of sealing ring 24 is slidably connected with fixed block 25, in use, anti -skid structure 3 is designed specially for preventing loosening, support block 31 is firmly fixed in the inner wall of connecting pipe 1, and this is the basis, anti -skid spring 32 and anti -skid rod 33 cooperate, one end of anti -skid spring 32 is fixed on support block 31, the other end is connected with anti -skid block 34, under normal circumstances, give anti -skid block 34 the elastic force in the direction of fixed block 25, when pipeline encounters vibration, fluid impact, anti -skid block 34 is moved by external force, anti -skid spring 32 contracts and buffers while being pulled in reverse, is guided to the cooperation of anti -skid rod 33, so that the friction block 35 of the outer wall of anti -skid block 34 is tightly resisted in the recess of fixed block 25, resists external force interference by friction, firmly stabilizes the position of fixed block 25, prevents loosening, ensures that the whole connecting structure is long-term stable.

[0020] The inner wall of connecting pipe 1 is fixedly connected with first limit block 11 and second limit block 12, and the outer wall of connecting pipe 1 is fixedly connected with external thread 13, in use, connecting pipe 1 is used as core component, the first limit block 11 and the second limit block 12 provided in the inner wall play the role of positioning and auxiliary support, limit the installation position of other components, and the external thread 13 of the outer wall builds foundation for subsequent fixing operation.

[0021] The outer wall of first limit block 11 is fixedly connected with the outer wall of clamping block 21, the outer wall of clamping block 21 is fixedly connected with rubber block 22, and the inner wall of fixed block 25 is threadedly connected with external thread 13.

[0022] The anti-skid structure 3 comprises a support block 31, the outer wall of the support block 31 is fixedly connected with an anti-skid spring 32 and an anti-skid rod 33, the top of the anti-skid rod 33 is slidingly connected with an anti-skid block 34.

[0023] The outer wall of the anti-skid block 34 is fixedly connected with a friction block 35, and one end of the anti-skid spring 32 away from the support block 31 is fixedly connected with the anti-skid block 34.

[0024] The outer wall of the anti-skid block 34 is slidingly connected with the groove of the fixed block 25, and the outer wall of the support block 31 is fixedly connected with the inner wall of the connecting pipe 1; in use, the anti-skid structure 3 is specially designed for anti-loosening, the support block 31 is fixedly arranged in the inner wall of the connecting pipe 1, and the anti-skid spring 32 and the anti-skid rod 33 work cooperatively, one end of the anti-skid spring 32 is fixedly arranged on the support block 31, the other end is connected with the anti-skid block 34, and the anti-skid block 34 is given elastic force in the direction of the fixed block 25 in normal state; when the pipeline is subjected to vibration and fluid impact, the anti-skid block 34 is moved under external force, the anti-skid spring 32 is contracted and buffered and is reversely pulled at the same time, the anti-skid rod 33 is guided in cooperation, the friction block 35 on the outer wall of the anti-skid block 34 is tightly arranged against the groove of the fixed block 25, the friction force is used to resist external force interference, the position of the fixed block 25 is stably fixed, the connection is prevented from loosening, and the long-term stability of the whole connecting structure is ensured.

[0025] Working principle:

[0026] In use, the connecting pipe 1 serves as a core component, the first limiting block 11 and the second limiting block 12 arranged on the inner wall of the connecting pipe 1 play the roles of positioning and auxiliary support, and the external thread 13 on the outer wall of the connecting pipe 1 lays a foundation for subsequent fixing operation;

[0027] In use, the fixed structure 2 bears the responsibilities of sealing and preliminary fixing, the clamping block 21 is stably arranged on the inner wall of the connecting pipe 1 under the assistance of the first limiting block 11, the outer wall of the clamping block 21 is slidingly connected with the stabilizing cylinder 23, the stabilizing cylinder 23 drives the sealing ring 24 to move, when the fixed block 25 is screwed with the external thread 13 on the outer wall of the connecting pipe 1, the sealing ring 24 and the stabilizing cylinder 23 are continuously pushed and pressed, the stabilizing cylinder 23 moves and presses the clamping block 21, so that the rubber block 22 on the clamping block 21 is tightly attached to the pipeline wall, effective connection and sealing are formed, and fluid leakage is prevented;

[0028] In use, the anti-skid structure 3 is specially designed for anti-loosening, the support block 31 is fixed on the inner wall of the connecting pipe 1, and the anti-skid spring 32 and the anti-skid rod 33 are cooperated, one end of the anti-skid spring 32 is fixed on the support block 31, the other end is connected with the anti-skid block 34, the anti-skid block 34 is given elastic force in the direction of the fixed block 25 in normal state, when the pipeline is subjected to vibration and fluid impact, the anti-skid block 34 is moved by external force, the anti-skid spring 32 is contracted and buffered, and is reversely pulled at the same time, the anti-skid rod 33 is guided, the friction block 35 on the outer wall of the anti-skid block 34 is tightly abutted against the groove of the fixed block 25, the position of the fixed block 25 is stably fixed by the friction force against external force interference, the connection is prevented from loosening, and the long-term stability of the whole connecting structure is ensured.

[0029] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A polyurethane pre-insulated pipe joint for direct burial and overhead applications, characterized in that, Include: Connecting pipe (1); Fixed structure (2), the outer wall of the fixed structure (2) is in sliding connection with the outer wall of the connecting pipe (1); Anti-skid structure (3), the outer wall of the anti-skid structure (3) is fixedly connected with the inner wall of the connecting pipe (1); The fixed structure (2) comprises a clamping block (21), the outer wall of the clamping block (21) is fixedly connected with the inner wall of the connecting pipe (1), the outer wall of the clamping block (21) is in sliding connection with a stabilizing cylinder (23), the outer wall of the stabilizing cylinder (23) is fixedly connected with a sealing ring (24), and the outer wall of the sealing ring (24) is in sliding connection with a fixed block (25).

2. The polyurethane pre-insulated pipe joint according to claim 1, characterized in that: The inner wall of the connecting pipe (1) is fixedly connected with a first limiting block (11) and a second limiting block (12), and the outer wall of the connecting pipe (1) is fixedly connected with an external thread (13).

3. The connecting structure of polyurethane precast direct-buried pipe and overhead pipe according to claim 2, characterized in that: The outer wall of the first limiting block (11) is fixedly connected with the outer wall of the clamping block (21), the outer wall of the clamping block (21) is fixedly connected with a rubber block (22), and the inner wall of the fixed block (25) is in threaded connection with the external thread (13).

4. The polyurethane pre-insulated pipe joint according to claim 1, characterized in that: The anti-skid structure (3) comprises a supporting block (31), the outer wall of the supporting block (31) is fixedly connected with an anti-skid spring (32) and an anti-skid rod (33), and the top of the anti-skid rod (33) is in sliding connection with an anti-skid block (34).

5. The polyurethane pre-insulated pipe joint according to claim 4, characterized in that: The outer wall of the anti-skid block (34) is fixedly connected with a friction block (35), and the end of the anti-skid spring (32) away from the supporting block (31) is fixedly connected with the anti-skid block (34).

6. The polyurethane pre-insulated pipe joint according to claim 5, characterized in that: The outer wall of the anti-skid block (34) is in sliding connection with the groove of the fixed block (25), and the outer wall of the supporting block (31) is fixedly connected with the inner wall of the connecting pipe (1).

Images