Reducing four-way pipe joint of fire extinguishing system

Abstract

The utility model discloses a reducing four-way pipe joint of a fire extinguishing system, which comprises a four-way joint, each end of the four-way joint is axially and concentrically provided with a stepped groove, each stepped groove is radially and telescopically connected with three arc-shaped plates which are distributed at equal intervals, and each stepped groove is axially and telescopically connected with a sealing ring. According to the four-way joint, the stepped groove is formed in the four-way joint, the three arc-shaped plates which are annularly distributed at equal intervals are connected to the interior of the stepped groove in the radial direction in a telescopic mode, and the internal threads are arranged in the arc-shaped plates, so that the four-way joint can be connected with fire fighting pipelines with different diameters, and the sealing ring is axially connected to the interior of the stepped groove in a telescopic mode; the four-way connector has the advantages that the sealing performance of the connection between the four-way connector and fire-fighting pipelines with different lengths can be improved, the design of a plurality of variable diameters is effectively met, a bushing does not need to be added during reducing, and the four-way connector is material-saving, space-saving, not easy to deform or damage, easy to install, and capable of reducing material cost and labor intensity.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting pipeline technical field especially relates to fire fighting system different diameter four way pipe joint. BACKGROUND

[0002] The design of the fire fighting automatic sprinkler system pipeline and joint of prior art is galvanized steel pipe design, and the existing problems are that the galvanized steel pipe is extremely easy to corrode, many fire fighting pipelines are blocked by rust and cannot spray water in time to save fire when a fire occurs, thereby causing a large fire; the galvanized steel pipe is inconvenient to install and maintain, the connection between steel pipes needs to be connected with a sleeve, which increases a large amount of labor cost, the construction efficiency is not high, the sealing is difficult, and there are safety hazards. SUMMARY

[0003] The utility model discloses fire fighting system different diameter four way pipe joint which is provided to solve the defects in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses the following technical scheme: fire fighting system different diameter four way pipe joint, including four joint, every one end of four joint is opened one ladder groove in axial concentricity, every ladder groove is connected with three equidistance distribution arc-shaped board in radial telescopic, the sealing ring is connected in axial telescopic in the ladder groove.

[0005] As a further description of the above technical scheme: the inner wall of the ladder groove is radially provided with three equidistance annular distribution second blind holes, one second guide rod is connected in axial telescopic in each second blind hole, the end of each second guide rod is fixed with one arc-shaped board, and the inner side of each arc-shaped board is provided with internal threads.

[0006] As a further description of the above technical scheme: the inner wall of the second blind hole is axially provided with two mirror image symmetry second sliding grooves, one second sliding block is connected in sliding in each second sliding groove, the second sliding block is fixedly connected with the second guide rod, and a second spring is fixedly connected between the second blind hole and the second guide rod.

[0007] As a further description of the above technical scheme: three arc-shaped boards jointly constitute a complete annular ring.

[0008] As a further description of the above technical solution: the inner wall of the stepped groove has two mirror-symmetrical first blind holes axially formed, and each first blind hole is telescopically connected to a first guide rod, which is axially fixed to the sealing ring.

[0009] As a further description of the above technical solution: two mirror-symmetrical first sliding grooves are axially opened on the inner wall of the first blind hole, and a first slider is slidably connected in each first sliding groove. The first slider is fixedly connected to the first guide rod, and a first spring is fixed between the first guide rod and the first blind hole. The sealing ring is made of hard rubber.

[0010] This utility model has the following beneficial effects:

[0011] Compared with existing technologies, this fire protection system reducing four-way pipe joint, by setting a stepped groove inside the four-way joint, and radially extending and connecting three equally spaced annular arc plates within the stepped groove, with internal threads inside the arc plates, allows the four-way joint to connect fire protection pipes of different diameters. Furthermore, the axial extension and connection of a sealing ring within the stepped groove improves the sealing performance of the four-way joint with fire protection pipes of different lengths, effectively meeting the design requirements for multiple diameter changes. No additional filler is needed during diameter changes. This invention has the advantages of saving materials, saving space, being less prone to deformation or damage, being easy to install, reducing material costs, and reducing labor intensity. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the overall structure of the reducing four-way pipe joint for the fire protection system proposed in this utility model;

[0013] Figure 2 This is a main sectional view of the overall structure of the reducing four-way pipe joint for the fire protection system proposed in this utility model;

[0014] Figure 3 The reducing four-way pipe joint for fire protection system proposed in this utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0015] Figure 4 The reducing four-way pipe joint for fire protection system proposed in this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0016] Legend:

[0017] 1. Four-way connector; 2. Arc plate; 3. Stepped groove; 4. Sealing ring; 5. Internal thread; 6. First guide rod; 7. First slider; 8. First slide groove; 9. First spring; 10. First blind hole; 11. Second spring; 12. Second slide groove; 13. Second slider; 14. Second blind hole; 15. Second guide rod. Detailed Implementation

[0018] 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 protection scope of the utility model.

[0019] With reference to Figures 1 to 4 The fire-fighting system variable-diameter four-way pipe joint provided by the utility model comprises a four-way joint 1, a stepped groove 3 is axially and concentrically arranged at each end of the four-way joint 1, three equidistantly distributed arc-shaped plates 2 are radially and telescopically connected in each stepped groove 3, the three arc-shaped plates 2 jointly form a complete ring, three equidistant annularly distributed second blind holes 14 are radially arranged on the inner wall of the stepped groove 3, a second guide rod 15 is axially and telescopically connected in each second blind hole 14, two mirror-symmetrical second sliding grooves 12 are axially arranged on the inner wall of the second blind hole 14, a second sliding block 13 is slidingly connected in each second sliding groove 12, the second sliding block 13 is fixedly connected with the second guide rod 15, a second spring 11 is fixedly connected between the second blind hole 14 and the second guide rod 15, an arc-shaped plate 2 is fixedly arranged at the end of each second guide rod 15, an inner thread 5 is arranged on the inner side of each arc-shaped plate 2, a sealing ring 4 is axially and telescopically connected in the stepped groove 3, two mirror-symmetrical first blind holes 10 are axially arranged on the inner wall of the stepped groove 3, a first guide rod 6 is telescopically connected in each first blind hole 10, the first guide rod 6 is axially fixed with the sealing ring 4, two mirror-symmetrical first sliding grooves 8 are axially arranged on the inner wall of the first blind hole 10, a first sliding block 7 is slidingly connected in each first sliding groove 8, the first sliding block 7 is fixedly connected with the first guide rod 6, a first spring 9 is fixedly connected between the first guide rod 6 and the first blind hole 10, and the sealing ring 4 is made of hard rubber.

[0020] The utility model discloses a four -way joint 1 can connect the fire -fighting pipeline of different length by setting up the step groove 3 in four -way joint 1, radially telescopic connection three equidistance annular distribution arc plate 2 in step groove 3, set up internal thread 5 in arc plate 2, make four -way joint 1 can connect the fire -fighting pipeline of different diameter, and the sealing ring 4 is connected in step groove 3 axially telescopic, can improve the sealing property of four -way joint 1 with the fire -fighting pipeline of different length connection, effectively satisfy the design of multiple variable diameter, do not need to increase the core when variable diameter, the utility model has the advantages of material, space, not easy deformation or damage, easy installation, reduce material cost and the advantage of lightening labour intensity, the second spring 11 will be compressed according to the diameter of the pipeline into step groove 3, make internal thread 5 in arc plate 2 and the external thread of fire -fighting pipeline closely meshed, simultaneously sealing ring 4 is closely contacted with the end of fire -fighting pipeline under the elastic force of first spring 9, make sealing ring 4 can be contacted with the end of fire -fighting pipeline of different length, thereby improve the sealing property of pipeline connection.

[0021] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. Fire fighting system reducing cross tee, comprising a cross tee (1), characterized in that: Each end of the four-way joint (1) is axially concentrically provided with a stepped groove (3), each of the stepped groove (3) is radially connected with three equidistantly distributed arc-shaped plates (2), the stepped groove (3) is axially connected with a sealing ring (4).

2. The fire protection system reducing four-way pipe joint of claim 1, wherein: The inner wall of the stepped groove (3) is radially provided with three equidistantly annularly distributed second blind holes (14), each of the second blind holes (14) is axially connected with a second guide rod (15), the end of each of the second guide rod (15) is fixed with the arc-shaped plate (2), the inner side of each of the arc-shaped plate (2) is provided with an internal thread (5).

3. The fire protection system reducing four-way pipe joint of claim 2, wherein: The inner wall of the second blind hole (14) is axially provided with two mirror-symmetrical second sliding grooves (12), each of the second sliding groove (12) is slidingly connected with a second sliding block (13), the second sliding block (13) is fixedly connected with the second guide rod (15), the second blind hole (14) and the second guide rod (15) are jointly fixed with a second spring (11).

4. The fire protection system reducing four-way pipe joint of claim 1, wherein: Three of the arc-shaped plates (2) jointly constitute a complete ring.

5. The fire protection system reducing four-way pipe joint of claim 1, wherein: The inner wall of the stepped groove (3) is axially provided with two mirror-symmetrical first blind holes (10), each of the first blind hole (10) is axially connected with a first guide rod (6), the first guide rod (6) is axially fixed with the sealing ring (4).

6. The fire protection system reducing four-way pipe joint of claim 5, wherein: The inner wall of the first blind hole (10) is axially provided with two mirror-symmetrical first sliding grooves (8), each of the first sliding groove (8) is slidingly connected with a first sliding block (7), the first sliding block (7) is fixedly connected with the first guide rod (6), the first guide rod (6) and the first blind hole (10) are jointly fixed with a first spring (9), the sealing ring (4) is made of hard rubber.

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