A heating, ventilation and air conditioning device that is easy to inspect externally.

Abstract

This utility model discloses a heating, ventilation, and air conditioning (HVAC) device that facilitates external inspection, relating to the field of HVAC technology. It includes a support plate located at the rear of the HVAC device. The support plate has two upper and lower housings arranged vertically on its top, with a connecting pipe positioned between them. The upper and lower housings contain a detection component for airtightness testing of the connection between the HVAC device and the connecting pipe. The outer walls of the upper and lower housings are equipped with sealing components to ensure stable testing. The detection component includes two vertically arranged annular fixing frames. This utility model achieves sound insulation through glass wool and damping plates, and then allows an ultrasonic detector to perform airtightness testing at the connection between the HVAC device and the connecting pipe through the annular fixing frames. The controller then activates an alarm, facilitating early detection of leaks, timely repair, and extending the lifespan of the HVAC device while reducing operating costs.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning (HVAC) technology, specifically to an HVAC device that is easy to detect externally. Background Technology

[0002] "HVAC" is a category of work in building equipment, encompassing heating, ventilation, and air conditioning. Heating equipment mainly includes heating systems and radiators, ventilation equipment includes exhaust fans, fresh air systems, and ventilation ducts, while air conditioning regulates the temperature, humidity, cleanliness, and airflow speed within a room. Generally, HVAC systems are equipped with external monitoring devices to continuously monitor the equipment.

[0003] For example, Chinese patent application CN202220691064.0 discloses an HVAC device with an external detection structure, comprising an HVAC pipe, a housing, and a base. The housing surrounds the HVAC pipe, and rotating brackets are mounted on both sides of the housing via bearings. The rotating brackets are connected to a detection bracket via bolts. An air inlet corresponding to the HVAC pipe is provided within the detection bracket. This utility model, an HVAC device with an external detection structure, has a simple and stable structure, low cost, and high practical value, making it suitable for widespread promotion and use.

[0004] However, in actual use, the above-mentioned device is not convenient for inspecting the connection between HVAC equipment and HVAC pipes. With long-term use, air leakage at the connection can lead to dangerous accidents, reducing the detection effectiveness of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a heating and ventilation system (HVAC) device that is easy to inspect externally. Sound insulation is achieved through glass wool and damping plates, and an ultrasonic detector, passing through a ring-shaped fixed frame, performs airtightness testing at the connection between the HVAC device and the connecting pipes. This triggers an alarm controlled by a controller, facilitating early detection of leaks, timely repairs, and ensuring the lifespan of the HVAC device while reducing operating costs. This effectively solves the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a heating and ventilation device that is easy to inspect from the outside, including a support plate located on the rear side of the heating and ventilation device, the top of the support plate having two upper shells and a lower shell distributed vertically, and a connecting pipe located between the upper shell and the lower shell;

[0007] The upper and lower housings are equipped with detection components for airtightness testing of the connection between the HVAC device and the connecting pipes.

[0008] The outer walls of the upper and lower housings are equipped with sealing components to ensure stable testing.

[0009] The detection assembly includes two annular fixing frames distributed vertically. The two annular fixing frames are respectively fixed to the center of the rear inner wall of the upper shell and the lower shell. Sealing rings are fixed at the two adjacent ends of the two annular fixing frames. An ultrasonic detector is fixed at one end of the rear inner wall of the upper shell.

[0010] Preferably, the upper and lower housings are each composed of a fixed sound insulation frame, glass wool, and a damping plate from the outside to the inside, which facilitates the provision of a quiet environment for the ultrasonic testing instrument, makes it convenient to test airtightness, and ensures the test results.

[0011] Preferably, an alarm is fixedly installed at one end of the top of the upper housing, a controller is fixedly installed inside the upper housing, and the input end of the ultrasonic detector is fixedly connected to the inside of the annular fixed frame. The output end of the ultrasonic detector and the input end of the alarm are both electrically connected to the controller, so that the controller can control the operation of the ultrasonic detector and the alarm.

[0012] Preferably, the sealing assembly includes two sealing plates, which are respectively fixed to the outer walls of the upper housing on both sides. Two bolts for fixing the upper housing and the lower housing are threadedly connected to the bottom of one side of the sealing plate, making it easy to unscrew the two bolts and to disassemble or install the upper housing and the lower housing.

[0013] Preferably, the connecting pipe and the lower housing have openings at the center of both the front and rear sides. An arc-shaped sealing gasket is fixed to the inner wall of the opening, and the connecting pipe passes through the openings of the upper and lower housings, so that the upper and lower housings can be snapped onto the connecting pipe, and the airtightness of the connection between the connecting pipe and the HVAC device can be tested.

[0014] Preferably, load-bearing piles are fixedly provided at both ends of the rear side of the support plate, and expansion bolts for fixing the HVAC device and the support plate are threadedly connected to the load-bearing piles. Two handles distributed front and back are fixedly provided on the top of the upper shell, which facilitates lifting the handles to separate and disassemble the upper shell from the lower shell.

[0015] Compared with the prior art, this utility model provides a heating and ventilation device that is easy to inspect externally, and has the following beneficial effects:

[0016] This invention reduces the reflection and propagation of sound between the HVAC system and the outside world by using glass wool, and reduces the vibration energy of sound waves between the HVAC system and the outside world by using damping plates, thus achieving a sound insulation effect. Then, an ultrasonic detector is used to perform airtightness testing at the connection between the HVAC system and the connecting pipes through a ring-shaped fixed frame. When a gas leak occurs, eddies are generated, and the ultrasonic wave band is detected by the ultrasonic detector. If a leak is detected, a signal is sent to the controller, which then controls the alarm to sound an alarm. This facilitates early detection of the leak point, timely repair, and ensures the service life of the HVAC system, while reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 6 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0023] In the diagram: 1 Support plate, 2 Load-bearing pile, 3 Expansion bolt, 4 Upper shell, 5 Detection assembly, 6 Sealing assembly, 7 Handle, 8 Connecting pipe, 9 Lower shell;

[0024] 51. Circular fixed frame, 52. Sealing ring, 53. Ultrasonic detector, 54. Alarm, 55. Fixed soundproof frame, 56. Glass wool, 57. Damping plate, 61. Sealing plate, 62. Bolt, 63. Arc-shaped sealing gasket. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-6As shown, this utility model provides a heating, ventilation and air conditioning (HVAC) device that is easy to inspect externally. It includes a support plate 1 located at the rear of the HVAC device. The top of the support plate 1 is provided with two upper shells 4 and a lower shell 9 distributed vertically. A connecting pipe 8 is located between the upper shell 4 and the lower shell 9. Both ends of the rear side of the support plate 1 are fixedly provided with load-bearing piles 2. The load-bearing piles 2 are connected by threads with expansion bolts 3 for fixing the HVAC device and the support plate 1. The top of the upper shell 4 is fixedly provided with two handles 7 distributed front and back, which facilitates lifting the handles 7 to separate and disassemble the upper shell 4 and the lower shell 9.

[0027] like Figure 1-6 As shown, the upper housing 4 and the lower housing 9 are equipped with a detection component 5, which is used to perform airtightness testing on the connection between the HVAC device and the connecting pipe 8. The detection component 5 includes two annular fixing frames 51 distributed vertically. The two annular fixing frames 51 are respectively fixed to the center of the rear inner wall of the upper housing 4 and the lower housing 9. Sealing rings 52 are fixed at the two adjacent ends of the two annular fixing frames 51.

[0028] An ultrasonic detector 53 is fixedly installed on one end of the rear inner wall of the upper housing 4. The interior of the upper housing 4 and the lower housing 9 are composed of a fixed sound insulation frame 55, glass wool 56 and damping plate 57 from the outside to the inside, which facilitates the provision of a quiet environment for the ultrasonic detector 53, makes it convenient to test airtightness and ensures the test results. An alarm 54 is fixedly installed on one end of the top of the upper housing 4. A controller is fixedly installed inside the upper housing 4, and the input end of the ultrasonic detector 53 is fixedly connected to the inside of the annular fixed frame 51. The output end of the ultrasonic detector 53 and the input end of the alarm 54 are both electrically connected to the controller, which facilitates the controller to control the operation of the ultrasonic detector 53 and the alarm 54.

[0029] By setting the detection component 5, the present invention is fixed between the heating and ventilation device and the connecting pipe 8, so that the annular fixing frame 51 is set at the connection between the heating and ventilation device and the connecting pipe 8. Then, the upper shell 4 and the lower shell 9 are fixed to each other. Then, the glass wool 56 reduces the reflection and transmission of sound between the heating and ventilation device and the outside world, and the damping plate 57 reduces the vibration energy of the heating and ventilation device and the outside sound waves, thereby achieving a sound insulation effect.

[0030] Then, the ultrasonic detector 53 is controlled to work, so that the ultrasonic detector 53 performs airtightness testing on the connection between the HVAC device and the connecting pipe 8 through the annular fixed frame 51. When a gas leak occurs, eddies will be generated, and the ultrasonic wave range will be detected by the ultrasonic detector 53. If a leak is detected, a signal will be sent to the controller, so that the controller will control the alarm 54 to sound an alarm. This makes it easier to find the leak point as early as possible, repair it in time, ensure the service life of the HVAC device, and reduce operating costs.

[0031] like Figure 1 , 2 As shown in Figures 4 and 5, the outer walls of the upper housing 4 and the lower housing 9 are provided with sealing components 6 to ensure stable testing. The sealing components 6 include two sealing plates 61, which are respectively fixed to the outer walls of the two sides of the upper housing 4. Two bolts 62 for fixing the upper housing 4 and the lower housing 9 are threadedly connected to the bottom of one side of the sealing plate 61, making it easy to unscrew the two bolts 62 and to disassemble or install the upper housing 4 and the lower housing 9. The connecting pipe 8 and the lower housing 9 have openings at the center of both the front and rear sides. The inner walls of the openings are fixed with arc-shaped sealing gaskets 63, and the connecting pipe 8 passes through the openings of the upper housing 4 and the lower housing 9, making it easy for the upper housing 4 and the lower housing 9 to be snapped onto the connecting pipe 8, and to perform airtightness testing at the connection between the connecting pipe 8 and the HVAC device.

[0032] By setting the sealing component 6, when it is necessary to install or disassemble the upper housing 4 and the lower housing 9, the upper housing 4 is placed at the top of the connecting pipe 8 and the lower housing 9 is placed at the bottom of the connecting pipe 8, so that the upper housing 4 and the lower housing 9 are spliced ​​together. Then, the two bolts 62 on the sealing plate 61 are tightened to limit and fix the upper housing 4 and the lower housing 9. The connecting pipe 8 is limited and fixed by the arc-shaped sealing gasket 63, which facilitates the disassembly of the upper housing 4 and the lower housing 9, and allows for the maintenance or replacement of the ultrasonic detector 53. It is convenient to use.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heating, ventilation, and air conditioning (HVAC) device that is easy to inspect externally, comprising a support plate (1) disposed at the rear side of the HVAC device, characterized in that: The support plate (1) has two upper shells (4) and lower shells (9) distributed vertically on its top, and the connecting pipe (8) is located between the upper shell (4) and the lower shell (9); The upper housing (4) and lower housing (9) are equipped with a detection component (5) for airtightness testing of the connection between the HVAC device and the connecting pipe (8); The outer walls of the upper housing (4) and the lower housing (9) are provided with sealing components (6) to ensure stable testing. The detection component (5) includes two annular fixing frames (51) distributed vertically. The two annular fixing frames (51) are respectively fixed at the center of the rear inner wall of the upper shell (4) and the lower shell (9). Sealing rings (52) are fixed at the two ends of the two annular fixing frames (51) that are close to each other. An ultrasonic detector (53) is fixed at one end of the rear inner wall of the upper shell (4).

2. A warming device according to claim 1, wherein: The upper shell (4) and the lower shell (9) are each composed of a fixed sound insulation frame (55), glass wool (56) and a damping plate (57) from the outside to the inside.

3. A warming device according to claim 2, wherein: An alarm (54) is fixedly installed at one end of the top of the upper housing (4). A controller is fixedly installed inside the upper housing (4). The input end of the ultrasonic detector (53) is fixedly connected to the inside of the annular fixed frame (51). The output end of the ultrasonic detector (53) and the input end of the alarm (54) are both electrically connected to the controller.

4. The warming device of claim 1, wherein: The sealing assembly (6) includes two sealing plates (61), which are respectively fixed on the outer walls of the upper housing (4). Two bolts (62) for fixing the upper housing (4) and the lower housing (9) are connected by threads to the bottom of one side of the sealing plate (61).

5. A warming device according to claim 4, wherein: The connecting pipe (8) and the lower housing (9) have openings at the center of both the front and rear sides. An arc-shaped sealing gasket (63) is fixed on the inner wall of the opening, and the connecting pipe (8) passes through the opening between the upper housing (4) and the lower housing (9).

6. The warming device of claim 1, wherein: The support plate (1) has load-bearing piles (2) fixed at both ends of the rear side. The load-bearing piles (2) are connected by threaded expansion bolts (3) for fixing the HVAC device and the support plate (1). The top of the upper shell (4) is fixed with two handles (7) distributed in the front and back.

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