Fire-fighting rotatable water mist joint

Abstract

The utility model discloses a rotatable fire-fighting water mist joint, which relates to the technical field of fire-fighting joints and comprises a connecting seat, a connecting ball and a double-thread connecting end. A connecting ball is mounted in one end of the connecting seat, and the other end of the connecting seat is connected with the double-thread connecting end; a flow guide hole is formed in the connecting base, a first through hole is formed in the connecting ball, a second through hole is formed in the double-thread connecting end, and the first through hole and the second through hole are communicated through the flow guide hole. The inner wall of the first through hole is provided with threads used for being connected with a water mist spray head. According to the utility model, the connecting seat and the connecting ball are arranged, the connecting ball is connected with the spray nozzle, the position of the spray nozzle is adjusted by rotating the connecting ball so as to meet the mounting requirements of more occasions, and the connecting area of the annular part and the connecting ball is enlarged by designing the inclined surface, so that the annular part can bear higher pressure and does not deform.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting connector technical field more specifically is related to a fire fighting rotatable water mist connector. BACKGROUND

[0002] Water mist nozzle is used for fire fighting sprinkler system, and the traditional water mist nozzle cannot rotate, which cannot meet the installation requirements in many occasions, so it is necessary to design a rotatable connector to cooperate with the water mist nozzle. UTILITY MODEL CONTENTS

[0003] The utility model discloses a fire fighting rotatable water mist connector.

[0004] The utility model discloses a fire fighting rotatable water mist connector.

[0005] A fire fighting rotatable water mist connector, including connecting seat, connecting ball and double -end thread connection end,

[0006] The connecting ball is installed in one end of the connecting seat, and the other end of the connecting seat is connected with the double-end thread connection end,

[0007] The connecting seat is provided with a flow guide hole, the connecting ball is provided with a through hole one, and the double-end thread connection end is provided with a through hole two, and the flow guide hole is communicated with the through hole one and the through hole two,

[0008] The inner wall of the through hole one is provided with a thread for connecting the water mist nozzle.

[0009] The inner wall of the bottom of the connecting ball extends inwardly and has an annular portion, the top of the annular portion is inclined, and the inclination is inclined from top to bottom. The setting of the annular portion plays a limiting role on the connecting end of the water mist nozzle. Without designing the inclined surface, the cross section of the annular portion is rectangular and the thickness is relatively thin. If the water mist nozzle is excessively tightly connected with the annular portion, the annular portion is easy to deform. By designing the inclined surface, the connecting area of the annular portion and the connecting ball is increased, so that the annular portion can bear greater pressure without deformation.

[0010] The inclined surface is embedded with a sealing ring, and the cross section of the sealing ring is a right triangle. In the prior art, a sealing ring is arranged on the inner wall of the connecting ball to seal, and the sealing ring can further increase the sealing property.

[0011] The connecting seat is provided with an annular limiting portion with a reversed right trapezoidal cross section at the flow guide hole, and the annular limiting portion is integrally formed with the connecting seat. The annular limiting portion is used for limiting the double-end thread connection end, and in addition, the cross section of the annular limiting portion is designed as a reversed right trapezoid, the lower base of the reversed right trapezoid is connected with the side wall of the connecting seat, so that the contact area of the annular limiting portion and the connecting seat is increased, and the annular limiting portion can bear greater pressure without deformation.

[0012] The annular sealing gasket is embedded at the bottom of the annular limiting part. The connection between the double-threaded connecting end and the connecting seat is provided with a sealing ring for sealing in the prior art, and the annular sealing gasket can further increase the sealing property.

[0013] The outer wall of the connecting seat and the double-threaded connecting end is provided with anti-skid lines.

[0014] The inner diameter D of the annular limiting part is the same as the inner diameter d of the annular part.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a connecting seat and connecting ball are set up, connecting ball is connected with water mist sprayer, and the position of water mist sprayer is adjusted through rotating connecting ball to adapt to the installation demand of more occasions, and the connecting area of annular part and connecting ball is made larger through the design of bevel, so that the annular part can bear greater pressure without deforming. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structural schematic diagram of the utility model;

[0018] Fig. 2 It is the structural schematic diagram of the anti-skid line provided on the outer wall of the connecting seat and the double-threaded connecting end;

[0019] Fig. 3 It is the mechanism schematic diagram of the utility model and water mist sprayer installation.

[0020] The figure mark: 1, connecting seat;2, connecting ball;3, double-threaded connecting end;4, flow guide hole;5, through hole one;6, through hole two;7, annular part;8, bevel;9, annular limiting part;10, annular sealing gasket;11, anti-skid line;12, connecting water mist sprayer;13, sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely in the following with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figs. 1 to 3 As shown, this embodiment provides a fire-fighting rotatable water mist connector, including a connecting seat 1, a connecting ball 2, and a double-threaded connecting end 3;

[0025] A connecting ball 2 is installed inside one end of the connecting seat 1, and the other end of the connecting seat 1 is connected to the double-threaded connecting end 3.

[0026] The connecting seat 1 is provided with a guide hole 4, the connecting ball 2 is provided with a through hole 5, and the double-threaded connecting end 3 is provided with a through hole 6. The guide hole 4 connects the through hole 5 and the through hole 6.

[0027] The inner wall of the through hole 5 is threaded for connecting the water mist nozzle 12.

[0028] The connecting ball 2 has an annular portion 7 extending inward from its bottom inner wall. The top of the annular portion 7 is a sloped surface 8, which slopes downward from top to bottom. The annular portion 7 serves to limit the connection end of the water mist nozzle. Without the sloped surface 8, the cross-section of the annular portion 7 is rectangular and relatively thin. If the water mist nozzle is excessively pressed against the annular portion 7, the annular portion 7 is prone to deformation. However, by designing the sloped surface 8, the connection area between the annular portion 7 and the connecting ball 2 is increased, allowing the annular portion 7 to withstand greater pressure without deformation.

[0029] A sealing ring 13 is embedded in the inclined surface 8, and the cross-section of the sealing ring 13 is a right-angled triangle. In the prior art, a sealing ring is set between the water mist nozzle and the inner wall of the connecting ball 2 for sealing, and the sealing ring 13 can further increase the sealing performance.

[0030] The connecting seat 1 has an annular limiting part 9 with a cross-section of a flipped right-angled trapezoid at the guide hole 4. The annular limiting part 9 is integrally formed with the connecting seat 1. The annular limiting part 9 is used to limit the double-threaded connection end 3. In addition, the cross-section of the annular limiting part 9 is designed as a flipped right-angled trapezoid, and the lower base of the flipped right-angled trapezoid is connected to the side wall of the connecting seat 1, which increases the contact area between the annular limiting part 9 and the connecting seat 1, so that the annular limiting part 9 can withstand greater pressure without deformation.

[0031] The bottom of the annular limiting part 9 is embedded with an annular sealing gasket 10. In the prior art, a sealing ring is arranged at the connection between the double-threaded connecting end 3 and the connecting seat 1 for sealing, and the annular sealing gasket 10 is designed to further increase the sealing performance.

[0032] The outer walls of the connecting seat 1 and the double-threaded connecting end 3 are provided with anti-skid lines 11. The anti-skid lines 11 are designed to increase the friction force to facilitate installation.

[0033] The inner diameter D of the annular limiting part 9 is the same as the inner diameter d of the annular part 7. The inner diameter D of the annular limiting part 9 is the same as the inner diameter d of the annular part 7, so that the standards are unified for standardized production.

[0034] Working principle: as shown in Fig. 3 The water mist connector 12 is installed in the connecting ball 2, the position of the water mist connector 12 is adjusted by rotating the connecting ball 2, and the other end of the double-threaded connecting end 3 is connected with the water inlet pipe.

Claims

1. A rotatable fire-fighting water mist connector, comprising a connecting seat, a connecting ball and a double-threaded connecting end; characterized in that: a connecting ball is installed in one end of the connecting seat, and the other end of the connecting seat is connected with the double-threaded connecting end; a flow guide hole is arranged in the connecting seat, a through hole one is arranged in the connecting ball, a through hole two is arranged in the double-threaded connecting end, and the flow guide hole connects the through hole one and the through hole two; an inner wall of the through hole one is provided with a thread for connecting a water mist nozzle.

2. The rotatable fire-fighting water mist fitting according to claim 1, characterized in that an annular part extends inwardly from an inner wall of a bottom of the connecting ball, a top of the annular part is a slope, and the slope is inclined from top to bottom.

3. The rotatable fire-fighting water mist fitting according to claim 2, characterized in that a sealing ring is embedded on the slope, and a cross section of the sealing ring is a right triangle.

4. The rotatable fire-fighting water mist fitting according to claim 3, characterized in that an annular limiting part with a cross section of an inverted right trapezoid is arranged in the connecting seat at the flow guide hole, and the annular limiting part is integrally formed with the connecting seat.

5. The rotatable fire-fighting water mist fitting according to claim 4, characterized in that an annular sealing gasket is embedded at a bottom of the annular limiting part.

6. The rotatable fire-fighting water mist fitting of claim 1, wherein, outer walls of the connecting seat and the double-threaded connecting end are provided with anti-skid lines.

7. A method according to claim 4, wherein, an inner diameter D of the annular limiting part is the same as an inner diameter d of the annular part.

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