Pressure reducing valve with quick inflation input connector

Abstract

The utility model relates to the field of fire fighting, in particular to a pressure reducing valve with a quick inflation input connector, which comprises a pressure reducer body, a P1 port and a P2 port are arranged on one side of the pressure reducer body, a P3 port and a P4 port are arranged on the other side of the pressure reducer body, and the P2 port is connected with a pressure gauge; the P3 port is connected with a mechanical alarm whistle; the P4 port is connected with a medium-pressure pipe, the P1 port is rotationally connected with an adapter block, the adapter block is provided with a bent part, one end of the adapter block is connected to the pressure reducer body, and the other end of the adapter block is connected with a quick inflation connector through a high-pressure pipe. The top is triangular, the P2 port and the P3 port are arranged on the upper portion, enough installation space is reserved for the P1 port and the P4 port on the side face, the switching block with the bending portion is installed on the P1 port, the wall thickness of the switching block can be set according to needs, the high-pressure fast charging requirement is met, and meanwhile the bending portion enables a high-pressure pipe to be attached to a waistband better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire fighting, specifically relates to a pressure reducing valve with quick inflation input connector. BACKGROUND

[0002] The quick inflation device is developed to reduce the frequency of cylinder replacement, shorten the emergency response time and improve the rescue efficiency. The fireman can use the quick inflation device to realize the connection of two high-pressure cylinders and balance the pressure of the two high-pressure cylinders to achieve the purpose of quick inflation of the low-pressure cylinder.

[0003] The quick inflation device is composed of a quick inflation input connector and a high-pressure charging pipe. The quick inflation input connector needs to be connected to the air respirator worn by the fireman.

[0004] The quick inflation input connector is generally directly connected to the pressure reducer of the air respirator. However, since the pressure reducer of the air respirator is behind the back of the fireman, the fireman can only connect the high-pressure charging pipe and the quick inflation input connector by feeling with his hand, which affects the rescue efficiency.

[0005] The old generation of pressure reducer (DM04 pressure reducer) of MSA is provided with a total of 4 interfaces on the left and right sides of the pressure reducer. Among them, P1 and P2 are horizontally arranged on the same side, and P3 and P4 are horizontally arranged on the same side. P1 is connected to the quick inflation input connector, P2 is connected to the pressure gauge, P3 is connected to the mechanical alarm whistle, and P4 is connected to the medium-pressure pipe. Since P1 and P2 are high-pressure interfaces, high-pressure pipes are usually connected to the quick inflation input connector and the pressure gauge on P1 and P2 to facilitate quick charging and pressure observation. However, since the pressure reducer of the air respirator is generally carried on the back of the fireman, it is away from the edge of the body of the fireman. When the fireman is implementing rescue, especially in narrow areas, the high-pressure pipe connected to the quick inflation input connector often protrudes from the body and is easily hung on obstacles, causing passage obstacles.

[0006] At the same time, since the high-pressure pipe connected to the quick inflation input connector has a working pressure of 30 MPa, in order to meet the pressure-bearing requirement, the high-pressure pipe wall contains a metal braid layer, so the high-pressure pipe has high hardness in general. This leads to a large bending radius of the high-pressure pipe, which can easily cause the high-pressure pipe to break. When the high-pressure pipe breaks and high-pressure leaks, it may cause damage to the body of the fireman.

[0007] Therefore, it is necessary to improve the pressure reducer to avoid large bending radius of the high-pressure pipe of the quick inflation connector. CONTENT OF THE UTILITY MODEL

[0008] The utility model discloses a pressure reducing valve with quick inflation input joint through setting the top as triangle, setting P2, P3 mouth in the upper portion, leaving enough mounting space for the side's P1 mouth, P4 mouth, installing the adapter block with the bending part in the P1 mouth can set the wall thickness of adapter block according to the need, satisfy the need of high pressure quick filling, and the bending part can make the high pressure pipe more fit the waistband.

[0009] The utility model discloses a pressure reducing valve with quick inflation input joint through setting the top as triangle, setting P2, P3 mouth in the upper portion, leaving enough mounting space for the side's P1 mouth, P4 mouth, installing the adapter block with the bending part in the P1 mouth can set the wall thickness of adapter block according to the need, satisfy the need of high pressure quick filling, and the bending part can make the high pressure pipe more fit the waistband.

[0010] A pressure reducing valve with quick inflation input joint, including pressure reducer body, the one side of pressure reducer body is provided with P1 mouth, P2 mouth, and the other side is provided with P3 mouth, P4 mouth, P2 mouth connects pressure gauge, P3 mouth connects mechanical alarm whistle, P4 mouth connects medium pressure pipe, P1 mouth rotatably connects with adapter block, and the adapter block is provided with bending part, and one end of adapter block is connected in pressure reducer body, and the other end is connected quick inflation joint through high pressure pipe, and the top of pressure reducer body is triangle-shaped, and P2 mouth, P3 mouth are arranged on the two sides of top inclined plane respectively.

[0011] Further, one end of the adapter block is provided with a rotating joint, and the other end is provided with a threaded joint.

[0012] Further, the rotating joint comprises an integral plug-in section A and an integral plug-in section B, the plug-in section A is arranged at the end, the diameter of the plug-in section A is smaller than the diameter of the plug-in section B, a first annular groove is arranged on the plug-in section A, a second annular groove is arranged on the plug-in section B, a sealing washer and an O-ring are arranged in the first annular groove, a U-shaped clamp is arranged in the P1 mouth, the U-shaped clamp is inserted into the second annular groove, and a mounting groove matched with the rotating joint is arranged in the P1 mouth.

[0013] Further, the pressure reducer body is provided with a mounting port for inserting the U-shaped clamp into the P1 mouth.

[0014] Further, the bending part forms an included angle of 90°-165°.

[0015] Further, the top of the pressure reducer body is obtuse.

[0016] The utility model discloses a pressure reducing valve with quick inflation input joint through setting the top as triangle, setting P2, P3 mouth in the upper portion, leaving enough mounting space for the side's P1 mouth, P4 mouth, installing the adapter block with the bending part in the P1 mouth can set the wall thickness of adapter block according to the need, satisfy the need of high pressure quick filling, and the bending part can make the high pressure pipe more fit the waistband.

[0017] Compared with the old design, the pressure reducer body of the patent leaves sufficient installation space for the P1 port and the P4 port on the side surface by setting the top as a triangular shape, setting the P2 port and the P3 port on the upper portion, installing the adapter block with the bending portion on the P1 port, and setting the wall thickness of the adapter block according to the needs to meet the needs of high-pressure fast charging, and meanwhile, the bending portion can make the high-pressure pipe more fit the waistband, thereby avoiding the problem of hanging to the obstacles and causing the problem of passability obstacles. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of the present application.

[0020] Figure 2 It is a structural schematic diagram of the adapter block.

[0021] Figure 3 It is a structural schematic diagram of the partial section.

[0022] Figure 4 It is a structural schematic diagram of the back of the pressure reducer body.

[0023] Figure 5 It is a structural schematic diagram when in use. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0025] As Figures 1-4 shown, a pressure reducing valve with a fast inflation input joint comprises a pressure reducer body 10, one side of the pressure reducer body 10 is provided with a P1 port and a P2 port, the other side is provided with a P3 port and a P4 port, the P2 port is connected with a pressure gauge 101; the P3 port is connected with a mechanical alarm whistle 102; the P4 port is connected with a medium-pressure pipe 103, the P1 port is rotatably connected with an adapter block 104, the adapter block 104 is provided with a bending portion 1041, one end of the adapter block 104 is connected to the pressure reducer body 10, the other end is connected with a fast inflation joint 20 through a high-pressure pipe 1044, the top of the pressure reducer body 10 is provided in a triangular shape, the P2 port and the P3 port are respectively arranged on the two side slopes of the top, one end of the adapter block 104 is provided with a rotating joint 1042, the other end is provided with a threaded joint 1043, the rotating joint 1042 and the threaded joint 1043 are communicated through a pipeline.

[0026] Specifically, the triangular shape of the top of the pressure reducer body 10 can provide more sufficient installation space for the P1 port and the P4 port, the adapter block 104 can be set to a thickness that meets the requirements of high-pressure quick borrowing, and the curved portion 1041 of the adapter block 104 can be set to rotate the adapter block 104 as needed, so that the high-pressure pipe 1044 is more closely attached to the waistband.

[0027] Further, in order to enable the rotating joint 1042 to be inserted into the P1 port and then rotated as needed, the rotating joint 1042 comprises an integral insertion section A 10421 and an insertion section B 10422, the insertion section A 10421 is arranged at the end, the diameter of the insertion section A 10421 is smaller than that of the insertion section B 10422, the insertion section A 10421 is provided with a first annular groove 10423, the insertion section B 10422 is provided with a second annular groove 10424, the first annular groove 10423 is provided with a sealing washer 10425 and an O-ring 10426, the P1 port is provided with a U-shaped clamp 10427, the U-shaped clamp 10427 is inserted into the second annular groove 10424, and the P1 port is provided with a mounting groove matched with the rotating joint 1042.

[0028] Further, in order to better install, the pressure reducer body 10 is provided with a mounting port for inserting the U-shaped clamp 10427 into the P1 port, so that when the U-shaped clamp 10427 is inserted into the P1 port from the mounting port, it can be conveniently fixed from the outside using bolts or blocks.

[0029] Further, the curved portion 1041 forms an included angle of 90°~165°, preferably 135°.

[0030] Further, in order to leave sufficient installation space at the top of the pressure reducer body, the top of the pressure reducer body 10 is obtusely triangular.

[0031] As shown in Figure 5 the pressure reducer body 10 is installed on the back strap, the P2 port and the P3 port are installed on both sides respectively due to the obtuse triangular shape of the top of the pressure reducer body 10, which leaves more installation space for the P1 port and the P4 port, the high-pressure pipe 1044 is connected by setting the adapter block 104, the adapter block 104 has a large thickness and can withstand a large pressure, the curved portion 1041 of the adapter block 104 is set to make the high-pressure pipe 1044 closely attached to the waistband, and the U-shaped clamp 10427 is set in the P1 port to be inserted into the second annular groove 10424, which can conveniently rotate the adapter block 104 after installation as needed.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A pressure reducing valve with quick inflation input joint, comprising a pressure reducer body (10), one side of the pressure reducer body (10) is provided with P1 port, P2 port, the other side is provided with P3 port, P4 port, the P2 port is connected with a pressure gauge (101); the P3 port is connected with a mechanical alarm whistle (102); the P4 port is connected with a medium pressure pipe (103), characterized in that, The P1 port is rotationally connected with an adapter block (104), the adapter block (104) is provided with a curved portion (1041), one end of the adapter block (104) is connected with the pressure reducer body (10), the other end is connected with a quick inflation connector (20) through a high-pressure pipe (1044), the top of the pressure reducer body (10) is triangularly arranged, and the P2 port and the P3 port are arranged on the two sides of the top, respectively.

2. A pressure reducing valve with a quick inflation input connection according to claim 1, characterized in that One end of the adapter block (104) is provided with a rotating joint (1042), and the other end is provided with a threaded joint (1043), and the rotating joint (1042) and the threaded joint (1043) are communicated through a pipeline.

3. A pressure reducing valve with a quick inflation input connection according to claim 2, characterized in that The rotating joint (1042) comprises an integrated insertion section A (10421) and an insertion section B (10422), the insertion section A (10421) is arranged at the end, the diameter of the insertion section A (10421) is smaller than that of the insertion section B (10422), a first annular groove (10423) is arranged on the insertion section A (10421), a second annular groove (10424) is arranged on the insertion section B (10422), a sealing washer (10425) and an O-ring (10426) are arranged in the first annular groove (10423), a U-shaped clamp (10427) is arranged in the P1 port, the U-shaped clamp (10427) is inserted into the second annular groove (10424), and a mounting groove matched with the rotating joint (1042) is arranged in the P1 port.

4. A pressure reducing valve with a quick inflation input connection according to claim 3, characterized in that The pressure reducer body (10) is provided with a mounting port for inserting the U-shaped clamp (10427) into the P1 port.

5. A pressure reducing valve with a quick inflation input connection according to claim 1, characterized in that, The curved portion (1041) forms an included angle of 90°-165°.

6. A pressure reducing valve with a quick inflation input connection according to claim 1, characterized in that, The top of the pressure reducer body (10) is obtusely arranged.

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