Fire-fighting pipeline expansion joint

Abstract

The utility model discloses a fire-fighting pipeline expansion joint which comprises a pipeline body, a sliding expansion assembly is installed on the outer wall of the pipeline body, a sliding sealing assembly is installed on the inner wall of the pipeline body, a connecting assembly is installed on the right side of the sliding expansion assembly, and a first flange is fixedly installed at the left end of the pipeline body. The sliding telescopic assembly comprises a plurality of adjusting rods, and the left ends of the adjusting rods are fixedly connected with the right side wall of the first flange. According to the fire-fighting pipeline expansion joint, through mutual cooperation of all parts, the overall length of a pipeline can be adjusted in a matched mode, after adjustment is completed, the adjusted length of the pipeline is limited and fixed, the situation of sliding adjustment is prevented from occurring again, and the pipeline can be in the state of stably maintaining the length after being stretched out and drawn back; and after adjustment is completed, overall sealing in the pipeline is good, and the problems of leakage and the like are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline expansion joint technical field, concretely is a fire pipeline expansion joint. BACKGROUND

[0002] The fire pipeline expansion joint is a kind of key components in fire-fighting system, mainly absorption pipeline is generated due to temperature change and thermal expansion and cold shrink phenomenon, ensure that fire-fighting system can normally operate under various environmental conditions, fire pipeline expansion joint is usually installed in fire pipeline, to compensate the length variation of pipeline caused by temperature change, maintain the stability and safety of system.

[0003] In the patent number CN219639721U, a ventilation pipeline expansion adjusting structure is disclosed, comprising a first pipeline, the front end of the first pipeline is fixedly connected with a first flange, six first connection holes are formed in the front end of the first flange, and the six first connection holes are distributed in a ring shape at equal angles, four fixed frames are fixedly connected to the inner surface of the first pipeline, and the four fixed frames are distributed in a ring shape at equal angles, one end of each of the four fixed frames close to the axis of the first pipeline is provided with a sliding groove, and an adjustable pipeline assembly is slidably installed in the four sliding grooves, and a movable sealing assembly is fixedly installed at the front end of the adjustable pipeline assembly. The ventilation pipeline expansion adjusting structure disclosed in the utility model achieves the purposes of adjusting the length of the pipeline and having a wide range of applications by setting the adjustable pipeline assembly, and achieves the purposes of improving the sealing property between the pipelines and facilitating the length adjustment of the pipeline by setting the movable sealing assembly.

[0004] The above device has some deficiencies when in use: the above device can adjust the length of the pipeline, but the length of the pipeline after adjustment is not fixed and limited, and sliding may occur under the influence of external force factors, so that the overall stability of the pipeline is insufficient.

[0005] Therefore, the utility model provides a fire pipeline expansion joint to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a fire pipeline expansion joint, which solves the above problems.

[0007] To achieve the above purposes, the utility model is implemented by the following technical solutions: a fire pipeline expansion joint, comprising a pipeline body, a sliding expansion assembly is installed on the outer wall of the pipeline body, a sliding sealing assembly is installed on the inner wall of the pipeline body, a connecting assembly is installed on the right side of the sliding expansion assembly, and a flange one is fixedly installed on the left end of the pipeline body.

[0008] The sliding telescopic assembly comprises a plurality of adjusting rods, the left end of each of the adjusting rods is fixedly connected with the right side wall of the flange one, the outer wall of each of the adjusting rods is provided with a threaded line, the outer wall of the sliding sealing assembly is fixedly installed with a mounting ring, the outer wall of the mounting ring is fixedly installed with a positioning ring, a plurality of through openings are uniformly formed in the outer wall of the positioning ring, the outer wall of each of the adjusting rods is attached to the inner wall of the corresponding through opening, a positioning seat is fixedly installed at the right end of each of the adjusting rods, a fastening bolt one is screw-connected at the position corresponding to the threaded line on the outer wall of each of the adjusting rods, and a fastening bolt two is screw-connected at the position corresponding to the threaded line on the outer wall of each of the adjusting rods.

[0009] Through the above technical scheme, the sliding telescopic assembly is arranged, and after the length adjustment of the sliding connection pipe is completed, the length can be limited and maintained to prevent dislocation or movement, thereby improving the overall stability after limiting.

[0010] Further, the plurality of adjusting rods are uniformly distributed on the right side wall of the flange one, the plurality of adjusting rods are installed in dislocation with the mounting openings on the flange one, the right side wall of the mounting ring is fixedly connected with the connection assembly, the fastening bolt one is abutted and fixed with the left side wall of the positioning ring, and the fastening bolt two is abutted and fixed with the right side wall of the positioning ring.

[0011] Through the above technical scheme, the positioning ring can slide along the outer wall of the adjusting rod, and the outer wall of the positioning ring is abutted and fixed by the fastening bolt one and the fastening bolt two to prevent shaking.

[0012] Further, the connection assembly comprises a receiving pipe, the left end of the receiving pipe is fixedly connected with the right side wall of the mounting ring and is in communication, and the outer wall of the receiving pipe is fixedly installed with a flange two.

[0013] Through the above technical scheme, the flange two is fixedly installed on the outer wall of the receiving pipe, which mainly facilitates the connection with the external pipeline.

[0014] Further, the sliding sealing assembly comprises a sliding connection pipe, the sliding connection pipe is located in the pipeline body, and the right end of the sliding connection pipe is fixedly connected with the left side wall of the mounting ring.

[0015] Through the above technical scheme, the sliding connection pipe can adjust the overall length between the pipeline body.

[0016] Further, the left side wall of the sliding connection pipe is fixedly connected with a circular positioning frame, and the cross section of the circular positioning frame is in the shape of "L".

[0017] Through the above technical scheme, the sliding connection pipe can drive the circular positioning frame to freely slide in the pipeline body.

[0018] Further, the outer wall of the circular positioning frame is fixedly installed with a sealing ring, and the left side wall of the circular positioning frame is fixedly installed with a sliding ring.

[0019] Through the above technical scheme, the sealing ring can improve the connection sealing performance of the sliding connection pipe and the pipeline body.

[0020] Further, the inner wall of the pipeline body is provided with a sliding groove, and the inner wall of the sliding groove is in sliding connection with the sliding ring, the sealing ring and the outer wall of the circular positioning frame.

[0021] Through the above technical scheme, the sliding ring, the sealing ring and the circular positioning frame are freely slid in the inner wall of the sliding groove.

[0022] Beneficial effects

[0023] The utility model provides a fire-fighting pipeline expansion joint. Compared with the prior art, the utility model has the following beneficial effects:

[0024] (1), this fire-fighting pipeline expansion joint, through the mutual cooperation of each component work, can the overall length of pipeline is adapted adjustment, and when the adjustment is completed, the length of the adjusted pipeline is fixed, prevents the condition of sliding adjustment from appearing again, makes the pipeline after telescoping can be in the state of stable keeping length, and the overall sealing of the pipeline inside is good after adjustment is completed, prevents the problems such as leakage. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure external schematic diagram of the utility model;

[0026] Figure 2 It is the right view of the external structure of the utility model;

[0027] Figure 3 It is the internal structure section view of the utility model;

[0028] Figure 4 It is the left view of the external structure of the utility model;

[0029] Figure 5 It is the internal structure explosion drawing of the utility model;

[0030] Figure 6 It is the A place structure enlarged view of the utility model Figure 3 .

[0031] 1, pipe body; 2, sliding telescopic assembly; 21, adjusting rod; 22, thread line; 23, fastening bolt one; 24, fastening bolt two; 25, positioning seat; 26, positioning ring; 27, through port; 28, mounting ring; 3, sliding sealing assembly; 31, sliding groove; 32, sliding ring; 33, circular positioning frame; 34, sliding connecting pipe; 35, sealing ring; 4, connecting assembly; 41, receiving pipe; 42, flange two; 5, flange one. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Embodiment one:

[0034] Please refer to Figures 1-6 A fire-fighting pipe telescopic joint, including pipe body 1, the outer wall of pipe body 1 is installed with sliding telescopic assembly 2, the inner wall of pipe body 1 is installed with sliding sealing assembly 3, the right side of sliding telescopic assembly 2 is installed with connecting assembly 4, and the left end of pipe body 1 is fixedly installed with flange one 5;

[0035] Sliding telescopic assembly 2 includes several adjusting rods 21, the left end of several adjusting rods 21 is fixedly connected with the right side wall of flange one 5, the outer wall of several adjusting rods 21 is provided with thread line 22, the right side of the outer wall of sliding sealing assembly 3 is fixedly installed with mounting ring 28, the outer wall of mounting ring 28 is fixedly installed with positioning ring 26, the outer wall of positioning ring 26 is uniformly provided with several through ports 27, the outer wall of several adjusting rods 21 is attached to the inner wall of corresponding through port 27, the right end of several adjusting rods 21 is fixedly installed with positioning seat 25, the position of corresponding thread line 22 on the outer wall of several adjusting rods 21 is screw-connected with fastening bolt one 23, the position of corresponding thread line 22 on the outer wall of several adjusting rods 21 is screw-connected with fastening bolt two 24, several adjusting rods 21 are uniformly distributed on the right side wall of flange one 5, several adjusting rods 21 are installed in dislocation with the mounting port on flange one 5, the right side wall of mounting ring 28 is fixedly connected with connecting assembly 4, fastening bolt one 23 is fixedly abutted with the left side wall of positioning ring 26, and fastening bolt two 24 is fixedly abutted with the right side wall of positioning ring 26.

[0036] In the embodiment of the utility model, the purpose of the setting is that the setting of the sliding telescopic assembly 2 drives the positioning ring 26 through the movable mounting ring 28, and then drives the sliding connection pipe 34 to slide freely in the inner wall of the pipeline body 1, the positioning ring 26 slides along the outer wall of the corresponding adjusting rod 21 through the through hole 27, when moving to the corresponding position, the sliding connection pipe 34 is fixed by the abutment of the fastening bolt one 23 and the fastening bolt two 24 and the positioning ring 26, so that the length adjustment and limiting of the sliding connection pipe 34 in the pipeline body 1 are completed.

[0037] Embodiment two:

[0038] Please refer to Figures 1-6 The embodiment provides a technical scheme based on the embodiment one: the connecting assembly 4 comprises a receiving pipe 41, the left end of the receiving pipe 41 is fixedly connected with the right side wall of the mounting ring 28 and is connected, a flange two 42 is fixedly installed on the right side of the outer wall of the receiving pipe 41, the sliding sealing assembly 3 comprises a sliding connection pipe 34, the sliding connection pipe 34 is located in the inside of the pipeline body 1, the right end of the sliding connection pipe 34 is fixedly connected with the left side wall of the mounting ring 28, a circular positioning frame 33 is fixedly connected on the left side wall of the sliding connection pipe 34, the circular positioning frame 33 is in the shape of "L", a sealing ring 35 is fixedly installed on the outer wall of the circular positioning frame 33, a sliding ring 32 is fixedly installed on the left side wall of the circular positioning frame 33, a sliding groove 31 is formed in the inner wall of the pipeline body 1, and the inner wall of the sliding groove 31 is slidably connected with the outer wall of the sliding ring 32, the sealing ring 35 and the circular positioning frame 33.

[0039] In the embodiment of the utility model, the purpose of the setting is that the setting of the connecting assembly 4 is mainly used for being connected with external pipelines, and when the extension length of the sliding connection pipe 34 in the pipeline body 1 is adjusted, the sliding ring 32, the sealing ring 35 and the circular positioning frame 33 are matched with each other, so that the sliding connection pipe 34 and the pipeline body 1 have good sealing effect, and problems such as leakage are prevented.

[0040] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0041] When the length of the sliding connection pipe 34 needs to be adjusted, the fastening bolt one 23 and the fastening bolt two 24 are rotated along the threaded line 22 to move away from the positioning ring 26, the mounting ring 28 and the sliding connection pipe 34 are moved left or right along the outer wall of the adjusting rod 21 by the movement of the positioning ring 26, the mounting ring 28 also synchronously drives the receiving pipe 41 and the flange two 42 to move, the sliding connection pipe 34 drives the circular positioning frame 33, the sealing ring 35 and the sliding ring 32 to slide in the inner wall of the sliding groove 31, and when the length adjustment of the sliding connection pipe 34 is completed, the fastening bolt one 23 and the fastening bolt two 24 are abutted and fixed with the outer wall of the positioning ring 26, so as to complete the fixation of the length of the sliding connection pipe 34, and the mutual cooperation of the circular positioning frame 33, the sealing ring 35 and the sliding ring 32 makes the sliding connection pipe 34 and the pipeline body 1 have good sealing property, and when connected with external pipelines, the pipeline body 1, the flange one 5, the receiving pipe 41 and the flange two 42 are mainly used for external cooperation and installation, and the positioning seat 25 is mainly used for limiting and fixing the position of the positioning ring 26 to prevent the positioning ring 26 from being separated from the outer wall of the adjusting rod 21.

[0042] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fire hose expansion joint, characterized by: Including pipeline body (1), the outer wall of pipeline body (1) is provided with sliding telescopic assembly (2), the inner wall of pipeline body (1) is provided with sliding sealing assembly (3), the right side of sliding telescopic assembly (2) is provided with connecting assembly (4), and the left end of pipeline body (1) is fixedly provided with flange one (5); The left end of the plurality of adjusting rods (21) is fixedly connected with the right side wall of flange one (5), the outer wall of the plurality of adjusting rods (21) is provided with a threaded line (22), the outer wall of the right side of the sliding sealing assembly (3) is fixedly provided with a mounting ring (28), the outer wall of the mounting ring (28) is fixedly provided with a positioning ring (26), the outer wall of the positioning ring (26) is uniformly provided with a plurality of through openings (27), the outer wall of the plurality of adjusting rods (21) is attached to the inner wall of the corresponding through opening (27), the right end of the plurality of adjusting rods (21) is fixedly provided with a positioning seat (25), the outer wall of the plurality of adjusting rods (21) and the position corresponding to the threaded line (22) are screw-connected with a fastening bolt one (23), and the outer wall of the plurality of adjusting rods (21) and the position corresponding to the threaded line (22) are screw-connected with a fastening bolt two (24).

2. A fire hose expansion joint according to claim 1, characterised in that: The plurality of adjusting rods (21) are uniformly distributed on the right side wall of flange one (5), the plurality of adjusting rods (21) are misaligned with the mounting port on flange one (5), the right side wall of the mounting ring (28) is fixedly connected with the connecting assembly (4), the fastening bolt one (23) is fixedly connected with the left side wall of the positioning ring (26), and the fastening bolt two (24) is fixedly connected with the right side wall of the positioning ring (26).

3. The fire hose expansion joint of claim 1, wherein: The connecting assembly (4) comprises a receiving pipe (41), the left end of the receiving pipe (41) is fixedly connected with the right side wall of the mounting ring (28) and is in communication, and the right side of the outer wall of the receiving pipe (41) is fixedly provided with a flange two (42).

4. The fire hose expansion joint of claim 1, wherein: The sliding sealing assembly (3) comprises a sliding connection pipe (34), and the sliding connection pipe (34) is located in the pipeline body (1).

5. A fire hose expansion joint according to claim 4, wherein: The left side wall of the sliding connection pipe (34) is fixedly connected with a circular positioning frame (33), and the cross section of the circular positioning frame (33) is in the shape of "L".

6. A fire hose expansion joint according to claim 5, wherein: The outer wall of the circular positioning frame (33) is fixedly provided with a sealing ring (35), and the left side wall of the circular positioning frame (33) is fixedly provided with a sliding ring (32).

7. The fire hose expansion joint of claim 1, wherein: The inner wall of the pipeline body (1) is provided with a sliding groove (31), and the inner wall of the sliding groove (31) is slidingly connected with the outer wall of the sliding ring (32), the sealing ring (35) and the circular positioning frame (33).

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