CN214662818U

CN214662818U - Three-way joint for fire fighting

Info

Publication number: CN214662818U
Application number: CN202120660983.7U
Authority: CN
Inventors: 刘建良; 杨笃聪
Original assignee: Zhejiang Homebase Intelligent Technology Co ltd
Current assignee: Zhejiang Homebase Intelligent Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-09
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a three way connection of fire control usefulness belongs to and connects technical field. It has solved the inconvenient problem of connection. It includes the body that is formed by two all semicircular petal body coupling, the connecting pipe has been linked firmly on one of them lamella body, connecting pipe one end is stretched into the internal side of lamella and is equipped with seal ring, the other end of connecting pipe stretches out outside the lamella, the one end that the connecting pipe stretches out outside the lamella body has linked firmly carbon steel card pressure and is taken over through the welding mode, carbon steel card pressure is taken over and is equipped with the bulge loop and carbon steel card pressure and takes over inboard and the corresponding department in bulge loop position and be equipped with the recess near end position department, be equipped with the sealing washer in the recess, carbon steel card pressure is taken over the internal diameter and is greater than connecting pipe internal diameter and carbon steel card pressure and is taken over and be connected between internal wall and the connecting pipe and form the location step. It has the advantages of convenient connection, firm connection, long service life and the like.

Description

Three-way joint for fire fighting

Technical Field

The utility model belongs to the technical field of connect, a three way connection who fire control was used is related to.

Background

In the fire-fighting system, the fire-fighting system consists of a main fire-fighting pipeline and a plurality of branch pipelines which are branched from the main fire-fighting pipeline. In order to facilitate the arrangement and connection of the pipes, various joints are most commonly used at present, such as mechanical tees, which can be used for the connection of branch pipes directly to the main fire fighting pipe. Current mechanical three way connection divide into slot type and mechanical type, no matter be the mechanical three way connection of slot type or screw thread formula, basically all include two semicircular in shape lamella bodies, it takes over to link firmly on one of them lamella body, the takeover both ends are located the both sides of lamella body respectively, paste respectively with two lamella bodies and put the outer wall at the main pipeline of fire control and guarantee that wherein one end of takeover inserts the downthehole formation intercommunication that main pipeline lateral part of fire control corresponds when connecting earlier, then utilize the fastener to constitute a body of holding tightly outside the main pipeline of fire control with two lamella bodies are fixed, connect the fire branch pipeline at the other end of takeover again at last. For the groove type mechanical three-way joint, an annular groove is formed in the outer side of one end of a connecting pipe, the annular groove needs to be formed in the outer side of the end part of the fire branch pipeline, and the groove type mechanical three-way joint and the fire branch pipeline are abutted and then clamped in the two annular grooves by utilizing a buckle to realize fixation; for the threaded mechanical three-way joint, the inner side of one end of the connecting pipe is provided with threads, and the end part of the fire branch pipeline is in threaded connection with the connecting pipe. In either of the above-described methods, there is a problem that the connection is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a three way connection of fire control usefulness, solved and connected inconvenient problem.

The purpose of the utility model can be realized by the following technical proposal:

three way connection that fire control was used includes the body that forms by two equal semicircular in shape lamella body coupling, has linked firmly the connecting pipe on one of them lamella body, and connecting pipe one end is stretched into the internal side of lamella and is equipped with seal ring, and the other end of connecting pipe stretches out outside the lamella, its characterized in that, the connecting pipe stretch out the external one end of lamella and has linked firmly carbon steel card through welding mode and press the takeover, carbon steel card press the takeover to be close to tip position department and be equipped with bulge loop and carbon steel card press takeover inboard and the corresponding department in bulge loop position and be equipped with the recess, be equipped with the sealing washer in the recess, carbon steel card press the takeover internal diameter to be greater than connecting pipe internal diameter and carbon steel card press takeover inner wall and connecting pipe inner wall between be connected and form location step.

During the use, put two lamella bodies respectively in the outside of fire main pipe and ensure that the one end of connecting pipe forms the intercommunication in inserting the hole that fire main pipe lateral part corresponds, seal ring pastes and forms the intercommunication outside fire main pipe, then fixes the body that forms tightly outside fire main pipe with two lamella bodies mutually. And then, inserting the aluminum-plastic pipe (serving as a fire branch pipe) into the carbon steel clamping and pressing connecting pipe until one end of the aluminum-plastic pipe abuts against the positioning step, clamping and pressing the aluminum-plastic pipe and the aluminum-plastic pipe from the outer side of the carbon steel clamping and pressing connecting pipe by using a clamping and pressing tool to simultaneously deform the aluminum-plastic pipe and the aluminum-plastic pipe to form fixation, and abutting the sealing ring against the outer wall of the aluminum-plastic pipe to form sealing. Through linking firmly carbon steel card pressure on the connecting pipe that stretches out the lamella body outside and taking over for this three way connection for fire control can connect through the mode of card pressure, has improved the convenience of connecting.

In the three-way joint for fire fighting, the carbon steel clamping pressure connection pipe is internally provided with the filter screen, and the filter screen is abutted against the positioning step.

After the aluminum-plastic pipe is inserted into the carbon steel clamp crimping pipe, the end part of the aluminum-plastic pipe pushes the filter screen against the positioning step. After the aluminum plastic pipe and the carbon steel clamping and pressing connecting pipe are clamped and fixed, the filter screen is fixed by the aluminum plastic pipe. The filter screen can filter the impurity of fire control aquatic, avoids the fire control branch pipe interior scaling and influences the fire control and go out water.

In foretell three way connection for fire control, the recess be close to the lateral wall of carbon steel card pressure takeover tip for the straight surface, still be equipped with the rand in the recess, the rand includes the ring body and follows the internal card that distributes and incline towards being close to the lamella body direction of ring, the ring body is spacing between the lateral wall that sealing washer and recess are close to carbon steel card pressure takeover tip.

Be equipped with the rand in the recess, when the aluminium-plastic pipe inserted in carbon steel card pressure takeover, the aluminium-plastic pipe can pass and outwards strut each card on the rand from the rand center, each card can interlock from this and make the unable outside roll-off of aluminium-plastic pipe in the outside of aluminium-plastic pipe, so installer just need not vacate a hand and push up the aluminium-plastic pipe in order to avoid its roll-off when utilizing the instrument to carry out the card to aluminium-plastic pipe and card pressure section, has improved the convenience of installation. Moreover, the clamping ring can also improve the connection firmness between the clamping and pressing section and the aluminum-plastic pipe.

In foretell three way connection for fire control, the petal body inwards shrink respectively along the both sides of body axis direction and form transition portion, seal ring is spacing between the inside wall of two transition portions, the tip of two transition portions all extends the boss that forms the semicircle type, the junction between transition portion and the petal body has the thickening protruding edge.

The end parts of the two transition parts extend to form the semicircular bosses, and the joints between the transition parts and the flap bodies are provided with thickened convex edges, so that the tearing or deformation of the mouth parts of the body caused by the vibration of the pipe fittings is avoided, the mechanical strength of the flap bodies is greatly improved, and the service life is prolonged.

In foretell three way connection for fire control, two lamella bodies are fixed mutually through two fasteners, and two lamella bodies are close to each both ends position department and equally divide and do not have the lug, and two fasteners all include screw and nut, and the pole portion of screw passes corresponding lug and nut threaded connection in the pole portion tip of screw on two lamella bodies in proper order, and each lug all links firmly mutually with thickening protruding edge and boss on the same lamella body.

Through each lug and thickening flange and the boss on the same lamella body link firmly mutually, further improved the mechanical strength of the lamella body, prolonged life.

In the three-way joint for fire fighting, each lug is provided with a strip-shaped hole through which the rod part of the screw passes.

Due to the arrangement of the strip-shaped holes, an installer can adjust the angle deviation of the two petals, and the installation is facilitated.

Compared with the prior art, this tee bend that fire control was used has following advantage:

1. the connecting pipe extending out of the outer side of the flap body is fixedly connected with the carbon steel clamping and pressing connecting pipe, so that the three-way joint for fire fighting can be quickly connected in a clamping and pressing mode, and the convenience of connection is improved;

2. the clamping ring is arranged in the groove, so that an installer can operate the clamping and pressing tool more conveniently by utilizing the clamping ring to be meshed outside the pipe fitting, and the connection firmness of a clamping and pressing mode is improved;

3. the filter screen is arranged in the carbon steel clamping pressure connecting pipe, so that impurities in the fire-fighting water can be filtered, and the fire-fighting water outlet is prevented from being influenced by accumulated scale in the fire-fighting branch pipe;

4. the end parts of the two transition parts extend to form the semicircular bosses, and the joints between the transition parts and the flap bodies are provided with thickened convex edges, so that the tearing or deformation of the mouth parts of the body caused by the vibration of the pipe fittings is avoided, the mechanical strength of the flap bodies is greatly improved, and the service life is prolonged.

Drawings

FIG. 1 is a schematic view of the present fire fighting tee.

FIG. 2 is a sectional view of the fire fighting tee.

Fig. 3 is a schematic view of a flap body to which a connection pipe is connected in the three-way joint for fire fighting.

In the figure, 1, a body; 2. a flap body; 2a, a transition part; 2b, a boss; 2c, thickening the convex edge; 2d, lugs; 2d1, strip shaped holes; 3. a connecting pipe; 4. a sealing gasket; 5. pressing the connecting pipe by carbon steel; 5a, a convex ring; 5b, a groove; 5c, positioning steps; 6. a seal ring; 7. a collar; 8. a fastener; 8a, a screw; 8b, a screw cap; 9. and (4) a filter screen.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the three-way joint for fire fighting comprises a body 1 formed by connecting two semicircular flap bodies 2, wherein one flap body 2 is fixedly connected with a connecting pipe 3, one end of the connecting pipe 3 extends into the inner side of the flap body 2 and is sleeved with a sealing gasket 4, and the other end of the connecting pipe 3 extends out of the flap body 2. Wherein, the one end that connecting pipe 3 stretches out the petal body 2 is linked firmly carbon steel card pressure and is taken over 5 through the welding mode, and carbon steel card pressure is taken over 5 internal diameters and is greater than connecting pipe 3 internal diameters and carbon steel card pressure is taken over 5 inner walls and is connected between 3 inner walls of connecting pipe and is formed location step 5c for connecting 5. The carbon steel card is pressed and is taken over 5 and be equipped with bulge loop 5a and carbon steel card and press 5 inboard and the corresponding department in bulge loop 5a position of takeover 5, the lateral wall that recess 5b is close to 5 tip of carbon steel card and is the straight face, be equipped with sealing washer 6 and rand 7 in the recess 5b, rand 7 includes the ring body and follows the internal card that distributes and incline towards being close to 2 directions of lamella body of ring, the ring body is spacing between the lateral wall that sealing washer 6 and recess 5b are close to 5 tip of carbon steel card and press the takeover. A filter screen 9 is arranged in the carbon steel clamping pressure connection pipe 5, and the filter screen 9 is abutted against the positioning step 5 c.

The petal body 2 forms transition portion 2a along the both sides of 1 axis direction of body shrink respectively inwards, and seal ring 4 is spacing between the inside wall of two transition portion 2a, and the tip of two transition portion 2a all extends the boss 2b that forms the semicircle type, and the junction between transition portion 2a and the petal body 2 has thickening protruding edge 2 c. Two lamella bodies 2 are fixed mutually through two fasteners 8, and two lamella bodies 2 are close to respective both ends position department and equally divide and do not have lug 2d, and two fasteners 8 all include screw 8a and nut 8b, and the pole portion of screw 8a passes corresponding lug 2d and nut 8b threaded connection in screw 8 a's pole portion tip on two lamella bodies 2 in proper order, and each lug 2d all links firmly with thickening protruding edge 2c and boss 2b on the same lamella body 2 mutually. Each lug 2d is provided with a strip-shaped hole 2d1 through which the rod of the screw 8a passes.

During the use, put two lamella bodies 2 respectively in the outside of fire main pipe and ensure that 3 one ends of connecting pipe insert and form the intercommunication in the outer hole of fire main pipe, seal ring 4 pastes and realizes sealedly outside fire main pipe, then utilizes fastener 8 to hold two lamella bodies 2 fixed formation mutually and hold tightly body 1 outside fire main pipe. Then, the aluminum-plastic pipe is used as a fire branch pipe and inserted into the carbon steel clamping and pressing connection pipe 5 until the end part of the aluminum-plastic pipe abuts against the filter screen 9 on the positioning step 5 c. In the inserting process, the aluminum-plastic pipe penetrates through the center of the clamping ring 7 to outwards open the clamping pieces on the clamping ring 7, the clamping pieces are occluded on the outer side of the aluminum-plastic pipe to enable the aluminum-plastic pipe not to outwards slide out, and meanwhile the sealing ring 6 abuts against the outer wall of the aluminum-plastic pipe to form sealing. Finally, the clamping and pressing tool is used for clamping and pressing the carbon steel clamping and pressing connecting pipe 5 from the outer side, so that the carbon steel clamping and pressing connecting pipe and the aluminum plastic pipe are deformed simultaneously to form fixation.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The three-way joint for fire fighting comprises a body (1) formed by connecting two semicircular flap bodies (2), one of the flap bodies (2) is fixedly connected with a connecting pipe (3), one end of the connecting pipe (3) extends into the inner side of the flap body (2) and is sleeved with a sealing gasket (4), the other end of the connecting pipe (3) extends out of the flap body (2), the connecting pipe is characterized in that one end of the connecting pipe (3) extending out of the valve body (2) is fixedly connected with a carbon steel clamping pressure connecting pipe (5) in a welding mode, the position, close to the end part, of the carbon steel clamping pressure connecting pipe (5) is provided with a convex ring (5a), the inner side of the carbon steel clamping pressure connecting pipe (5) is provided with a groove (5b) corresponding to the position of the convex ring (5a), a sealing ring (6) is arranged in the groove (5b), and the inner diameter of the carbon steel clamping pressure connecting pipe (5) is larger than the inner diameter of the connecting pipe (3) and the inner wall of the carbon steel clamping pressure connecting pipe (5) is connected with the inner wall of the connecting pipe (3) to form a positioning step (5 c).

2. A three-way joint for fire fighting according to claim 1, characterized in that a filter screen (9) is provided in the carbon steel clamp pressure connection pipe (5), and the filter screen (9) abuts against the positioning step (5 c).

3. A three-way joint for fire fighting according to claim 2, characterized in that the side wall of the groove (5b) near the end of the carbon steel clamping pressure connection pipe (5) is straight, a collar (7) is further provided in the groove (5b), the collar (7) comprises an annular body and clamping pieces distributed along the inner edge of the annular body and inclined towards the direction near the flap body (2), and the annular body is limited between the sealing ring (6) and the side wall of the groove (5b) near the end of the carbon steel clamping pressure connection pipe (5).

4. The three-way joint for fire fighting according to claim 1, 2 or 3, characterized in that the flap body (2) is respectively inwardly contracted along both sides of the body (1) in the axial direction to form transition portions (2a), the sealing washer (4) is limited between the inner side walls of the two transition portions (2a), the ends of the two transition portions (2a) are extended to form semicircular bosses (2b), and the joint between the transition portions (2a) and the flap body (2) is provided with thickened convex edges (2 c).

5. The three-way joint for fire fighting according to claim 4, characterized in that the two flaps (2) are fixed by two fasteners (8), the two flaps (2) have lugs (2d) near their respective ends, the two fasteners (8) each include a screw (8a) and a nut (8b), the shaft of the screw (8a) sequentially passes through the corresponding lugs (2d) on the two flaps (2) and the nut (8b) is screwed to the end of the shaft of the screw (8a), and each lug (2d) is fixedly connected with the thickened flange (2c) and the boss (2b) on the same flap (2).

6. A three-way joint for fire fighting as defined in claim 5, characterized in that each lug (2d) is provided with a strip-shaped hole (2d1) through which the shank of the screw (8a) passes.