Heating and ventilation pressure release valve

Abstract

The utility model discloses a heating and ventilation pressure release valve, and relates to the technical field of pressure release valves, the heating and ventilation pressure release valve comprises a valve, the upper end of the valve is fixedly connected with a pressure gauge, the left end and the right end of the valve are fixedly connected with communicated connecting pipes, and the front ends of the connecting pipes are movably provided with external connecting pipes; and a connecting assembly is mounted at the joint of the connecting pipe and the external pipe. Through cooperation of the first flange plate, the butt joint ring, the second flange plate, the first through hole, the screw rod, the nut and the butt joint groove, the connecting pipe and the external connecting pipe can be in butt joint rapidly, so that the pipeline connecting efficiency can be improved, and the practicability of the valve is improved; and through cooperation of a sealing ring, a sealing gasket, an inserting block, a convex block, a stabilizing plate, a first bolt, a second bolt, a spring, a first screw hole, a second screw hole, an inserting groove, a second through hole and a third through hole, the pipeline can be rapidly fixed, so that the pipeline can be prevented from falling off during use, and meanwhile the sealing performance between the pipelines can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief valves, in particular to a HVAC pressure relief valve. Background Art

[0002] HVAC is an integral part of a building, including heating, ventilation and air conditioning.

[0003] It is also a major for cultivating senior engineering and technical personnel and management personnel who work in the fields of building environment control, building energy conservation and intelligent technology of building facilities, and have the ability to design, construct, debug, operate and manage public facility systems such as air conditioning, heating, ventilation, building water supply and drainage, gas supply, building heat supply systems and building energy conservation, as well as the ability to formulate building automation system solutions.

[0004] The pressure relief valve is composed of a needle valve 1, a pressure gauge 2, a main valve 3, a pilot valve 4 and a connecting pipe.

[0005] It is a type of hydraulic control valve. The main valve is divided into upper and lower parts by a diaphragm. The lower cavity of the diaphragm is the water flow channel, and the upper cavity is the control chamber, which controls the opening and closing of the main valve disc.

[0006] The existing technology has the following problems:

[0007] The existing pressure relief valve cannot be connected quickly during actual use, so that the two ends of the pressure relief valve cannot be well connected to the pipeline, which causes the pressure relief valve to be poorly used. Utility Model Content

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A HVAC pressure relief valve comprises a valve, the upper end of which is fixedly connected to a pressure gauge, the left and right ends of the valve are fixedly connected to interconnected connecting pipes, the front ends of the connecting pipes are movably provided with external connecting pipes, a connecting assembly is installed at the connection between the connecting pipe and the external connecting pipe, and a fixing mechanism is installed on the outside of the connecting assembly.

[0010] Preferably: the connecting assembly includes flange 1, the right end of flange 1 is fixedly connected to the left end of the connecting pipe, a docking ring is fixedly installed on the left end face of flange 1, and flange 2 is fixedly installed on the right end of the external pipe, through holes 1 are equidistantly provided on the surfaces of flange 1 and flange 2, a screw is movably inserted inside the through hole 1, a threaded nut is externally sleeved on the left end of the screw, and an annular docking groove is provided on the right end face of flange 2.

[0011] Preferably, the left end of the flange one is movably connected to the right end of the flange two.

[0012] Preferably, the docking ring matches the docking groove and is movably connected.

[0013] Preferably: the fixing mechanism comprises a sealing ring, the interior of the sealing ring is movably connected to the outer ends of flange 1 and flange 2, a sealing gasket is fixedly connected to the inner wall of the sealing ring, four groups of equidistantly distributed plug-ins are fixedly installed on the right end of the sealing ring, four groups of equidistantly distributed protrusions are fixedly connected to the outside of the left end of the connecting pipe, a stabilizing plate is movably installed on the right end of the protrusion, bolt 1 is movably installed on the top of the protrusion, bolt 2 is movably installed in the middle of the stabilizing plate, a spring is movably sleeved on the outside of bolt 2, screw hole 1 is provided on the upper end surface of the plug-in block, screw hole 2 is provided on the right end surface of the plug-in block, a slot is provided through the inside of the protrusion, through hole 2 is provided in the middle of the top of the protrusion, and through hole 3 is provided on the surface of the stabilizing plate.

[0014] Preferably, the plug-in block matches the slot and is movably connected.

[0015] Preferably: the bolt one passes through the through hole two and is threadedly connected to the screw hole one, the bolt two passes through the through hole three and is threadedly connected to the screw hole two, the left end of the stabilizing plate is movably connected to the right end of the insert, and the positions of the screw hole two and the through hole three are consistent.

[0016] Preferably, the external pipe and the connecting pipe are connected to each other through the connection between the first flange and the second flange.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a HVAC pressure relief valve, which can quickly connect the connecting pipe and the external pipe through the connection assembly, through the cooperation of flange one, docking ring, flange two, through hole one, screw, nut and docking groove, thereby improving the efficiency of pipeline connection and the practicability of the valve.

[0019] 2. The utility model provides a HVAC pressure relief valve, which can quickly fix the pipeline through a fixing mechanism, through the cooperation of a sealing ring, a sealing gasket, an insert, a protrusion, a stabilizing plate, a bolt 1, a bolt 2, a spring, a screw hole 1, a screw hole 2, a slot, a through hole 2, and a through hole 3, thereby preventing the pipeline from falling off during use and improving the sealing between the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the HVAC pressure relief valve of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a cross-sectional view of a HVAC pressure relief valve of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection assembly of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the detail diagram of the fixing mechanism of the utility model.

[0025] In the figure: 1. valve; 2. pressure gauge; 3. connecting pipe; 4. external pipe; 5. connecting assembly; 6. fixing mechanism; 51. flange one; 52. docking ring; 53. flange two; 54. through hole one; 55. screw; 56. nut; 57. docking groove; 61. sealing ring; 62. sealing gasket; 63. plug-in block; 64. protrusion; 65. stabilizing plate; 66. bolt one; 67. bolt two; 68. spring; 611. screw hole one; 612. screw hole two; 613. slot; 614. through hole two; 615. through hole three. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] like Figure 1-5 As shown, the utility model provides a HVAC pressure relief valve, including a valve 1, a pressure gauge 2 is fixedly connected to the upper end of the valve 1, both left and right ends of the valve 1 are fixedly connected to connecting pipes 3 that are in communication, an external pipe 4 is movably installed at the front end of the connecting pipe 3, a connecting assembly 5 is installed at the connection between the connecting pipe 3 and the external pipe 4, and a fixing mechanism 6 is installed on the outside of the connecting assembly 5.

[0028] The external pipe 4 and the connecting pipe 3 are connected to each other through the connection between the flange 1 51 and the flange 2 53 .

[0029] Through the connection assembly 5, the connecting pipe 3 and the external pipe 4 can be quickly connected, thereby improving the efficiency of pipeline connection, thereby improving the practicality of the valve 1. Through the fixing mechanism 6, the pipeline can be quickly fixed, thereby preventing the pipeline from falling off during use, and at the same time improving the sealing between the pipelines.

[0030] like Figure 1-5As shown, the connecting assembly 5 includes a flange 51, the right end of which is fixedly connected to the left end of the connecting pipe 3, a docking ring 52 is fixedly installed on the left end face of the flange 51, and a flange 2 53 is fixedly installed on the right end of the external pipe 4. Through holes 54 are equidistantly provided on the surfaces of the flange 51 and the flange 2 53, a screw 55 is movably inserted inside the through hole 54, a nut 56 with a threaded connection is externally sleeved on the left end of the screw 55, and an annular docking groove 57 is provided on the right end face of the flange 2 53.

[0031] The left end of flange 1 51 is movably connected to the right end of flange 2 53 .

[0032] The docking ring 52 matches the docking groove 57 and is movably connected.

[0033] After the docking ring 52 is inserted into the docking groove 57, the connection effect of the two sets of flanges can be improved.

[0034] like Figure 1-5 As shown, the fixing mechanism 6 includes a sealing ring 61, the interior of the sealing ring 61 is movably connected to the outer ends of the flange 1 51 and the flange 2 53, a sealing gasket 62 is fixedly connected to the inner wall of the sealing ring 61, four groups of equally spaced plug blocks 63 are fixedly installed on the right end of the sealing ring 61, four groups of equally spaced protrusions 64 are fixedly connected to the left end of the connecting pipe 3, a stabilizing plate 65 is movably installed on the right end of the protrusion 64, a bolt 1 66 is movably installed on the top of the protrusion 64, a bolt 2 67 is movably installed in the middle of the stabilizing plate 65, a spring 68 is movably sleeved on the outside of the bolt 2 67, a screw hole 1 611 is provided on the upper end surface of the plug block 63, a screw hole 2 612 is provided on the right end surface of the plug block 63, a slot 613 is provided through the inside of the protrusion 64, a through hole 2 614 is provided in the middle of the top of the protrusion 64, and a through hole 3 615 is provided on the surface of the stabilizing plate 65.

[0035] The plug block 63 matches the slot 613 and is movably connected.

[0036] Bolt one 66 passes through through hole two 614 and is threadedly connected to screw hole one 611, bolt two 67 passes through through hole three 615 and is threadedly connected to screw hole two 612, the left end of the stabilizing plate 65 is movably connected to the right end of the insert block 63, and the positions of screw hole two 612 and through hole three 615 are consistent.

[0037] By using the sealing ring 61 and the sealing gasket 62 to directly cover and seal the gap at the connection of the two sets of flanges, the sealing performance of the entire valve 1 can be fully guaranteed. The spring 68 can absorb vibration and impact, thereby preventing the bolt 67 from loosening.

[0038] The following is a detailed description of the working principle of the HVAC pressure relief valve.

[0039] like Figure 1-5 As shown, when the HVAC pressure relief valve is in use, when the valve 1 needs to be installed, firstly, the flange 1 51 on the connecting pipe 3 at both ends of the valve 1 is connected with the flange 2 53 on the external pipe 4, and the docking ring 52 can be inserted into the docking groove 57, and the through hole 1 54 on the flange 1 51 is aligned with the through hole 1 54 on the flange 2 53, and then the screw 55 is passed through the through hole 1 54, and the nut 56 is sleeved on the screw 55 and tightened, so that the connecting pipe 3 and the external pipe 4 are connected, and then the plug 63 can be pushed to move to the right, so that the plug 63 moves inside the slot 613, and at this time, under the action of the plug 63, the sealing ring 61 will move with the sealing gasket 62 along with it. Movement, when it moves to a certain position, the sealing ring 61 and the sealing gasket 62 will cover the connection between the flange 1 51 and the flange 2 53, so that the gap between the two sets of flanges can be directly covered and sealed, thereby fully ensuring the sealing performance of the entire valve 1, and then the bolt 1 66 is inserted into the screw hole 1 611 through the through hole 2 614 and tightened to fix the plug block 63, and then the stabilizing plate 65 is aligned with the plug block 63, and then the bolt 2 67 is inserted into the screw hole 2 612 through the through hole 3 615 to fix the plug block 63 again, so that the sealing ring 61 can be limited, and at the same time, the connecting pipe 3 and the external pipe 4 are not easy to fall off during use.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A HVAC pressure relief valve, comprising a valve (1), wherein the upper end of the valve (1) is fixedly connected to a pressure gauge (2), characterized in that: The left and right ends of the valve (1) are both fixedly connected with interconnecting connecting pipes (3), the front ends of the connecting pipes (3) are both movably mounted with external connecting pipes (4), a connecting assembly (5) is mounted at the connection between the connecting pipe (3) and the external connecting pipe (4), and a fixing mechanism (6) is mounted on the outside of the connecting assembly (5); The connection assembly (5) comprises a flange plate (51), the right end of which is fixedly connected to the left end of the connection pipe (3), a docking ring (52) is fixedly mounted on the left end face of the flange plate (51), and a flange plate (53) is fixedly mounted on the right end of the external pipe (4). Through holes (54) are equidistantly provided on the surfaces of the flange plate (51) and the flange plate (53), a screw rod (55) is movably inserted inside the through hole (54), a nut (56) which is threadedly connected is sleeved on the left end of the screw rod (55), and an annular docking groove (57) is provided on the right end face of the flange plate (53).

2. A HVAC pressure relief valve according to claim 1, characterized in that: The left end of the flange plate 1 (51) is movably connected to the right end of the flange plate 2 (53).

3. A HVAC pressure relief valve according to claim 2, characterized in that: The docking ring (52) matches the docking groove (57) and is movably connected.

4. A HVAC pressure relief valve according to claim 1, characterized in that: The fixing mechanism (6) comprises a sealing ring (61), the interior of the sealing ring (61) is movably connected to the outer ends of the flange plate 1 (51) and the flange plate 2 (53), the inner wall of the sealing ring (61) is fixedly connected to a sealing gasket (62), the right end of the sealing ring (61) is fixedly installed with four groups of equally spaced plug blocks (63), the left end of the connecting pipe (3) is fixedly connected to the outside with four groups of equally spaced protrusions (64), the right end of the protrusion (64) is movably installed with a stabilizing plate (65), and the top of the protrusion (64) is movably connected to the right end of the protrusion (64). A bolt (66) is installed, a bolt (67) is movably installed in the middle of the stabilizing plate (65), a spring (68) is movably sleeved on the outside of the bolt (67), a screw hole (611) is provided on the upper end surface of the plug block (63), a screw hole (612) is provided on the right end surface of the plug block (63), a slot (613) is provided inside the protrusion (64), a through hole (614) is provided in the middle of the top of the protrusion (64), and a through hole (615) is provided on the surface of the stabilizing plate (65).

5. A HVAC pressure relief valve according to claim 4, characterized in that: The insert block (63) matches the slot (613) and is movably connected.

6. A HVAC pressure relief valve according to claim 5, characterized in that: The bolt one (66) passes through the through hole two (614) and is threadedly connected to the screw hole one (611), and the bolt two (67) passes through the through hole three (615) and is threadedly connected to the screw hole two (612). The left end of the stabilizing plate (65) is movably connected to the right end of the insert block (63), and the positions of the screw hole two (612) and the through hole three (615) are consistent.

7. A HVAC pressure relief valve according to claim 1, characterized in that: The external pipe (4) and the connecting pipe (3) are connected to each other through the connection between the first flange (51) and the second flange (53).

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