Water pressure detection device for heating and ventilation construction

Abstract

The utility model relates to the field of heating and ventilation construction, in particular to a water pressure detection device for heating and ventilation construction, which comprises a communicating pipe used for conveying warm water; and the pressure gauge is installed above the communicating pipe and used for water pressure detection, an installation base is fixedly installed above the communicating pipe, and the pressure gauge is installed above the installation base. According to the water pressure detection device for heating and ventilation construction, through the arrangement of the communicating pipe, the pressure gauge, the connecting pipe and the filtering mechanism, impurities in warm water can be filtered out, the numerical value detected by the pressure gauge is prevented from being affected, the warm water enters the connecting pipe, the impurities in the warm water are filtered out through the filtering plate in the connecting pipe, and the working efficiency is improved. And in order to avoid the condition that the filter plate is blocked, the blades on the filter plate are utilized, and the blades are pushed by water flow to rotate on the filter plate, so that impurities on the filter plate are minced, the impurities can be filtered out, and meanwhile, the condition that the filter plate is blocked is also prevented.

Description

Technical Field

[0001] The utility model relates to the field of HVAC construction, in particular to a water pressure detection device for HVAC construction. Background Art

[0002] HVAC construction provides a comfortable indoor environment and air quality for buildings by installing and debugging heating, ventilation and air-conditioning equipment. When the water pressure in the HVAC pipes is too high, there is a risk of bursting the pipes. During the HVAC construction process, it is necessary to install a water pressure detection device to test the HVAC pipes.

[0003] After searching, a utility model water pressure detection device for a water supply pipeline with a publication number of CN216924033U was found. The water pressure detection device for a water supply pipeline includes a guide pipe, a fixed head and a pressure detector. The guide pipe is used to be connected to the water supply pipeline, and the guide pipe is in communication with the water supply pipeline. The pressure detector is connected to the fixed head. The fixed head is detachably connected to one end of the guide pipe away from the water supply pipeline, and the pressure detector is located in the guide pipe. The water pressure detection device for a water supply pipeline can stabilize the water pressure by drawing out water through the guide pipe, can prevent the water flow from impacting the pressure detector, improve the detection accuracy of the pressure detector, and can also protect the pressure detector.

[0004] The existing water pressure detection device used in HVAC construction contains impurities such as rust in the HVAC water, which is prone to blockage after long-term use, thus affecting the detection accuracy of the water pressure detector. The above-mentioned comparative case is a water pressure detection device for water supply pipes, but its properties are similar to those of the water pressure detection device used in HVAC construction. This patent does not have the function of preventing large particles from damaging the inside of the pipe. At the same time, the water quality will contain a large amount of impurities and particles, which will affect the water pressure detection value.

[0005] Therefore, it is necessary to invent a water pressure detection device for HVAC construction to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a water pressure detection device for HVAC construction. HVAC water enters the connecting pipe, and the impurities in the HVAC water are filtered by the internal filter plate. The impurities on the filter plate are crushed by the blade on the filter plate. This not only filters out the impurities, but also prevents the filter plate from being blocked, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water pressure detection device for HVAC construction, comprising a connecting pipe for conveying HVAC water;

[0008] A pressure gauge is installed above the connecting pipe and is used for water pressure detection. A mounting seat is fixedly installed above the connecting pipe, and the pressure gauge is installed above the mounting seat;

[0009] Flanges are installed on both sides of the connecting pipes and are used for splicing and assembling the connecting pipes. A block clamp is movably connected to one side of the flange, bolts are passed through one side of the block clamp, and a connecting pipe is fixedly installed on one side of the block clamp;

[0010] The filter mechanism is installed on one side of the connecting pipe and is used to filter impurities in the HVAC water.

[0011] Preferably, a hinge is provided on one side of the pressure gauge, a protective cover is movably connected to one side of the hinge, a first magnet is provided on one side of the protective cover, and a second magnet is provided on one side of the pressure gauge.

[0012] Preferably, a drain pipe is fixedly installed below the connecting pipe, an external thread is arranged on the outside of the lower end of the drain pipe, and a solenoid valve is movably connected to the outside of the external thread.

[0013] Preferably, the filtering mechanism includes a filter box, a mounting plate, a limiting groove, a clamping block, a filter plate, a rotating shaft, a blade, a limiting block, a telescopic rod, and a spring. The filter box is fixed to one side of the connecting pipe, the filter box is internally movably connected to the mounting plate, limiting grooves are provided on both side surfaces of the mounting plate, clamping blocks are fixedly installed on both sides of the lower side of the mounting plate, a filter plate is fixedly installed below the mounting plate, the filter plate is internally movably connected to the rotating shaft, and the blade is fixedly connected to the outside of the rotating shaft.

[0014] Preferably, both sides of the interior of the filter box are movably connected with limit blocks, one end of the limit block is fixedly mounted with a telescopic rod, and the outside of the telescopic rod and the inside of the filter box are provided with springs.

[0015] Preferably, the inner limiting blocks of the filter box are engaged with the limiting grooves on both sides of the mounting plate, and the limiting grooves and the limiting blocks are arranged in a trapezoidal shape.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. Through the setting of the connecting pipe, pressure gauge, connecting pipe and filtering mechanism, impurities in HVAC water can be filtered out to avoid affecting the value detected by the pressure gauge. The HVAC water enters the connecting pipe and the impurities in the HVAC water are filtered by the internal filter plate. In order to avoid the clogging of the filter plate, the blade on the filter plate is used to rotate on the filter plate through the water flow, so as to mince the impurities on the filter plate. This can not only filter out impurities, but also prevent the filter plate from being blocked;

[0018] 2. Through the setting of the filtering mechanism, the filter plate needs to be cleaned regularly after long-term use. The filter plate and the mounting plate are integrated, and the telescopic rods on both sides of the filter box are pulled to drive the limit blocks to leave the limit grooves on both sides of the mounting plate, and then the mounting plate and the filter plate are taken out together. After cleaning, the mounting plate is reinserted into the filter box. Because the limit grooves and limit blocks on both sides of the mounting plate are trapezoidal, the mounting plate can be directly inserted without obstruction. After insertion, the limit blocks will be re-stuck in the limit grooves through spring rebound to limit them. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the pressure gauge of the utility model;

[0022] Figure 3 This is a schematic diagram of the connecting pipe structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the filter mechanism structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the filter plate structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Connecting pipe; 2. Mounting seat; 3. Pressure gauge; 4. Hinge; 5. Protective cover; 6. First magnet; 7. Second magnet; 8. Drain pipe; 9. External thread; 10. Solenoid valve; 11. Flange; 12. Block clamp; 13. Bolt; 14. Connecting pipe; 15. Filter mechanism; 1501. Filter box; 1502. Mounting plate; 1503. Limiting groove; 1504. Block; 1505. Filter plate; 1506. Rotating shaft; 1507. Blade; 1508. Limiting block; 1509. Telescopic rod; 1510. Spring. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5The water pressure detection device for HVAC construction shown includes a connecting pipe 1 for conveying HVAC water;

[0029] A pressure gauge 3 is installed above the connecting pipe 1 and is used for water pressure detection. A mounting seat 2 is fixedly installed above the connecting pipe 1, and the pressure gauge 3 is installed above the mounting seat 2;

[0030] Flanges 11 are installed on both sides of the connecting pipe 1 for splicing and assembling the connecting pipe 1. A block clamp 12 is movably connected to one side of the flange 11. Bolts 13 penetrate through one side of the block clamp 12. A connecting pipe 14 is fixedly installed on one side of the block clamp 12.

[0031] The filtering mechanism 15 is installed on one side of the connecting pipe 14 and is used to filter impurities in the HVAC water. The HVAC water enters the connecting pipe 14 and the impurities in the HVAC water are filtered by the internal filter plate 1505. In order to avoid the filter plate 1505 from being blocked, the blade 1507 on the filter plate 1505 is used to rotate on the filter plate 1505 by the push of the water flow, thereby crushing the impurities on the filter plate 1505. This not only filters out the impurities, but also prevents the filter plate 1505 from being blocked.

[0032] like Figure 1 and Figure 2 As shown, a hinge 4 is provided on one side of the pressure gauge 3, a protective cover 5 is movably connected to one side of the hinge 4, a first magnet 6 is provided on one side of the protective cover 5, and a second magnet 7 is provided on one side of the pressure gauge 3. The protective cover 5 can play a certain protective role on the pressure gauge 3 to prevent dust from covering the surface of the pressure gauge 3 and affecting the viewing of the pressure value.

[0033] like Figure 1 and Figure 3 As shown, a drain pipe 8 is fixedly installed below the connecting pipe 1, and an external thread 9 is arranged on the outside of the lower end of the drain pipe 8. A solenoid valve 10 is movably connected to the outside of the external thread 9. When the pressure gauge 3 detects that the pressure is too high, the HVAC water in the connecting pipe 1 is discharged from the drain pipe 8 through the solenoid valve 10 to complete the pressure relief work.

[0034] like Figure 1 , Figure 4 and Figure 5As shown, the filter mechanism 15 includes a filter box 1501, a mounting plate 1502, a limiting groove 1503, a block 1504, a filter plate 1505, a rotating shaft 1506, a blade 1507, a limiting block 1508, a telescopic rod 1509, and a spring 1510. The filter box 1501 is fixed to one side of the connecting pipe 14, and the interior of the filter box 1501 is movably connected with the mounting plate 1502. The limiting grooves 1503 are provided on both sides of the mounting plate 1502. The blocks 1504 are fixedly installed on both sides of the lower side of the mounting plate 1502. A filter plate 1505 is fixedly installed below 502, and the filter plate 1505 is movably connected to the inside of the rotating shaft 1506, and the outside of the rotating shaft 1506 is fixedly connected to a blade 1507. When HVAC water enters the connecting pipe 1, impurities in the HVAC water can be filtered through the internal filter plate 1505 to avoid affecting the water pressure detection. When there are too many impurities on the filter plate 1505, the impact force of the water pushes the blade 1507 on the surface of the filter plate 1505 to rotate, thereby removing impurities on the surface of the filter plate 1505 and avoiding blockage.

[0035] like Figure 4 and Figure 5 As shown, the inner sides of the filter box 1501 are movably connected with limit blocks 1508, one end of the limit block 1508 is fixedly installed with a telescopic rod 1509, the outside of the telescopic rod 1509 and the inside of the filter box 1501 are provided with a spring 1510, the telescopic rods 1509 on both sides of the filter box 1501 are pulled to drive the limit blocks 1508 to leave the limit grooves 1503 on both sides of the mounting plate 1502, and then the mounting plate 1502 and the filter plate 1505 are taken out together.

[0036] like Figure 4 and Figure 5 As shown, the internal limit block 1508 of the filter box 1501 is engaged with the limit grooves 1503 on both sides of the mounting plate 1502, and the limit grooves 1503 and the limit blocks 1508 are set to a trapezoid. After cleaning, the mounting plate 1502 is reinserted into the filter box 1501. Since the limit grooves 1503 and the limit blocks 1508 on both sides of the mounting plate 1502 are trapezoidal, the mounting plate 1502 can be directly inserted without obstruction. After insertion, the limit blocks 1508 will rebound through the spring 1510 and be re-engaged in the limit groove 1503 to limit it.

[0037] The practical working principle of the present invention is as follows: first, the flange 11 on one side of the connecting pipe 1 is threadedly connected with the block clamp 12 and the connecting pipe 14, and then the flange 11 on the other side is connected to the HVAC water pipe, and the other side of the connecting pipe 14 is also connected to the HVAC water pipe. When all are connected, the power is turned on. When the HVAC water is transported, it first enters the filter plate 1505 in the filter box 1501 on one side of the connecting pipe 14, and the impurities in the HVAC water are filtered through the filter plate 1505. In order to avoid clogging of the filter plate 1505, the blade 1507 on the surface of the filter plate 1505 is driven to rotate by the impact of the water flow to crush the impurities on the filter plate 1505 to avoid clogging. Then, the HVAC water after filtration enters the connecting pipe 1, and the water pressure of the HVAC water is tested by the external pressure gauge 3. When the water pressure of the pressure gauge 3 is too high, the solenoid valve 10 switch is opened to discharge the HVAC water in the connecting pipe 1 from the drain pipe 8. 1502, and the filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1502. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1502. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1502. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501. The filter plate 1505 is moved out of the filter box 1501.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water pressure detection device for HVAC construction, characterized in that: It comprises a connecting pipe (1) for conveying HVAC water; A pressure gauge (3) is installed above the connecting pipe (1) and is used for water pressure detection. A mounting seat (2) is fixedly installed above the connecting pipe (1), and the pressure gauge (3) is installed above the mounting seat (2); Flanges (11) are installed on both sides of the connecting pipe (1) and are used for splicing and assembling the connecting pipe (1); one side of the flange (11) is movably connected to a block clamp (12); bolts (13) penetrate through one side of the block clamp (12); and one side of the block clamp (12) is fixedly installed with a connecting pipe (14); The filtering mechanism (15) is installed on one side of the connecting pipe (14) and is used to filter impurities in the HVAC water.

2. A water pressure detection device for HVAC construction according to claim 1, characterized in that: A hinge (4) is provided on one side of the pressure gauge (3), a protective cover (5) is movably connected to one side of the hinge (4), a first magnet (6) is provided on one side of the protective cover (5), and a second magnet (7) is provided on one side of the pressure gauge (3).

3. A water pressure detection device for HVAC construction according to claim 1, characterized in that: A drainage pipe (8) is fixedly installed below the connecting pipe (1), an external thread (9) is arranged on the outside of the lower end of the drainage pipe (8), and a solenoid valve (10) is movably connected to the outside of the external thread (9).

4. A water pressure detection device for HVAC construction according to claim 1, characterized in that: The filtering mechanism (15) comprises a filtering box (1501), a mounting plate (1502), a limiting groove (1503), a clamping block (1504), a filtering plate (1505), a rotating shaft (1506), a blade (1507), a limiting block (1508), a telescopic rod (1509), and a spring (1510). The filtering box (1501) is fixed to one side of the connecting pipe (14). The interior of the filtering box (1501) is movably connected to the mounting plate (1502). The surfaces of both sides of the mounting plate (1502) are provided with limiting grooves (1503). The clamping blocks (1504) are fixedly installed on both sides of the lower side of the mounting plate (1502). The filtering plate (1505) is fixedly installed on the lower side of the mounting plate (1502). The interior of the filtering plate (1505) is movably connected to the rotating shaft (1506). The outer side of the rotating shaft (1506) is fixedly connected to the blade (1507).

5. A water pressure detection device for HVAC construction according to claim 4, characterized in that: The two sides of the interior of the filter box (1501) are movably connected to limit blocks (1508), one end of the limit block (1508) is fixedly mounted with a telescopic rod (1509), and a spring (1510) is provided between the outside of the telescopic rod (1509) and the inside of the filter box (1501).

6. A water pressure detection device for HVAC construction according to claim 4, characterized in that: The internal limiting block (1508) of the filter box (1501) is engaged with the limiting grooves (1503) on both sides of the mounting plate (1502), and the limiting grooves (1503) and the limiting blocks (1508) are arranged in a trapezoidal shape.

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