Portable indoor ventilation effect detection device

Abstract

The utility model relates to the field of ventilation effect detection, and discloses a portable indoor ventilation effect detection device which comprises a supporting piece, an outer frame piece is inserted on the supporting piece, a ventilation cylinder capable of exhausting air is fixedly connected on the outer frame piece, a detection mechanism capable of detecting wind power is jointly arranged in the outer frame piece and the ventilation cylinder, and a control module is further inserted on the supporting piece. Compared with the prior art, the ventilation device has the advantages that when air flow enters a barrel body of the ventilation barrel, the air baffle is pushed to enable the lantern ring to move along the resistance rod, the ventilation barrel is driven to rotate along the resistance rod, and the ventilation barrel is driven to rotate along the resistance rod. The movement of the lantern ring changes the resistance value in the circuit, and the control module converts the wind power by detecting the current change. The first spring can push the wind shield to reset when the airflow is weakened, real-time response to wind power changes is achieved, and the problems that a traditional device is lagged in detection and insufficient in precision are solved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation effect testing, specifically to a portable indoor ventilation effect testing device. Background Technology

[0002] In real life and production, indoor ventilation directly affects air circulation efficiency, pollutant diffusion speed, and human comfort, making it one of the core indicators for assessing building environmental quality. Whether in residences, offices, or industrial plants, a good ventilation system must meet the requirements of "sufficient air volume, reasonable air direction, and stable airflow"—for example, residences need ventilation to dilute formaldehyde and other pollutants from renovations, factories need directional ventilation to control dust concentration, and hospital clean areas need precise ventilation to maintain pressure balance.

[0003] Traditional ventilation monitoring often uses wind speed sensors (such as thermal and ultrasonic sensors) to directly measure wind speed. These sensors are sensitive to airflow direction; if the measured direction deviates from the actual wind direction, the measured value will be too low to reflect the true ventilation status. Furthermore, existing equipment mostly only measures instantaneous wind speed, failing to consider parameters such as ventilation duration for a comprehensive assessment of ventilation effectiveness. For example, when windows are opened for indoor ventilation, wind speed often fluctuates periodically; relying solely on instantaneous wind speed can easily lead to misjudgments of ventilation efficiency, resulting in a lack of scientific basis for subsequent ventilation system optimization. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned difficulties and provide a portable indoor ventilation effect testing device.

[0005] A portable indoor ventilation effect testing device includes a support member, an outer frame member inserted into the support member, a ventilation duct for exhausting air fixed to the outer frame member, a detection mechanism for detecting wind force shared by the outer frame member and the ventilation duct, a control module inserted into the support member, the control module being electrically connected to the detection mechanism via a conductive slip ring, and a wind guide member on the ventilation duct that can drive the ventilation duct to rotate according to the wind direction.

[0006] As an improvement, the outer frame includes a frame body fixedly connected to the ventilation duct, the detection mechanism includes a resistance rod located inside the frame, a collar is sleeved on the resistance rod, and a slider two is provided on the collar, the ventilation duct includes a cylinder, a slide seat is provided at the bottom of the cylinder, a slide groove two is provided on the slide seat, a slide rod two is provided in the slide groove two and slidably connected to the slider two, a spring one is sleeved on the slide rod two with its end abutting against the slider two, a slide plate is provided on the slider two, and a baffle plate located inside the cylinder is provided on the slide plate.

[0007] As an improvement, the frame is provided with a sliding groove, and a sliding rod is provided in the sliding groove. The bottom of the collar is provided with a slider that is slidably connected to the sliding rod. The slider is provided with a conductive component that can be electrically connected to both the resistor rod and the sliding rod. The ends of the sliding rod and the resistor rod are electrically connected to wires. The ends of the wires are provided with conductive sliders and are electrically connected to the conductive slip ring through the conductive sliders.

[0008] As an improvement, the support includes a base, on which an electric telescopic rod is mounted. The top of the telescopic rod of the electric telescopic rod has an insertion hole, and the bottom of the frame has a swivel base with a rod at the bottom that is inserted into the insertion hole. The outer frame rotates relative to the support via the swivel base.

[0009] As an improvement, the control module includes a controller body, a control panel and a handle on the controller body, a locking block on the electric telescopic rod, a locking groove on the controller body that engages with the locking block, and a conductive slip ring located on the controller body and electrically connected to the controller body.

[0010] As an improvement, the wind guide includes a top seat fixed to the cylinder, a guide component rotatably inserted into the top seat, and a locking bolt on the top seat.

[0011] As an improvement, the conductive component includes a conductive cylinder located inside the slider one, a limiting slide plate correspondingly slidably disposed inside the conductive cylinder, a spring two disposed between the two limiting slide plates, a conductive slider one passing through the conductive cylinder disposed on the limiting slide plate, and the two conductive sliders one being slidably connected to the slide rod one and the resistor rod respectively.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1. When airflow enters the duct body, it pushes the baffle plate, causing the collar to move along the resistor rod. The movement of the collar changes the resistance value in the circuit, and the control module calculates the wind force by detecting the change in current. The elasticity of spring two ensures that conductive slider one is in close contact with the resistor rod, avoiding data errors caused by poor contact; while spring one can push the baffle plate to reset when the airflow weakens, realizing a real-time response to changes in wind force and solving the problems of detection lag and insufficient accuracy in traditional devices.

[0014] 2. In fixed-scene testing, the electric telescopic rod of the support component can be height-adjusted via the control panel to meet ventilation testing needs at different heights from the ground to the sky. The rotating base of the outer frame connects with the insertion hole of the electric telescopic rod, allowing the ventilation duct to rotate freely with the wind guide, ensuring that the guide always faces the airflow direction and guaranteeing airflow measurement. In mobile-scene testing, after loosening the locking bolts, the wind direction can be determined by observing the orientation of the guide, and the duct angle can be manually adjusted to complete the test. This solves the problem of poor flexibility of traditional fixed devices and avoids errors caused by hand tremors when using purely handheld devices.

[0015] 3. The control module is electrically connected to the conductive slip ring. The wires slide in contact with the conductive slip ring through the conductive slider. When the outer frame drives the ventilation duct and the detection mechanism to rotate around the rotating base, the conductive slip ring can prevent the wires from getting tangled, ensuring that the circuit between the control module and the detection mechanism is always unobstructed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a portable indoor ventilation effect testing device according to this utility model.

[0017] Figure 2 This is a breakdown diagram of the overall structure of a portable indoor ventilation effect testing device according to this utility model. Figure 1 .

[0018] Figure 3 This is a breakdown diagram of the overall structure of a portable indoor ventilation effect testing device according to this utility model. Figure 2 .

[0019] Figure 4 This is a partial structural schematic diagram of a portable indoor ventilation effect testing device according to this utility model.

[0020] Figure 5 This utility model relates to a portable indoor ventilation effect testing device. Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] Figure 6 This is a schematic diagram of the testing mechanism of a portable indoor ventilation effect testing device according to this utility model.

[0022] Figure 7 This is a schematic diagram of the conductive component structure of a portable indoor ventilation effect testing device according to this utility model.

[0023] As shown in the figure: 1. Support component; 101. Base; 102. Electric telescopic rod; 103. Locking block; 104. Insertion hole; 2. Outer frame component; 201. Frame body; 202. Rotary seat; 203. Insertion rod; 204. Slide groove one; 205. Slide rod one; 3. Ventilation duct; 301. Cylinder body; 302. Slide seat; 303. Slide groove two; 304. Slide rod two; 305. Spring one; 4. Detection mechanism; 401. Resistance rod; 402. Collar; 403. Slider one; 404 4041. Conductive component; 4042. Conductive cylinder; 4043. Limiting slide plate; 4044. Conductive slider one; 4045. Spring two; 406. Slide plate; 407. Wind deflector; 408. Wire; 409. Conductive slider two; 5. Conductive slip ring; 6. Control module; 601. Controller body; 602. Control panel; 603. Handle; 604. Slot; 7. Wind guide; 701. Top seat; 702. Guide component; 703. Locking bolt. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 As shown:

[0026] A portable indoor ventilation effect testing device includes a support member 1, an outer frame member 2 inserted into the support member 1, a ventilation duct 3 for exhausting air fixedly connected to the outer frame member 2, a detection mechanism 4 for detecting wind force jointly provided inside the outer frame member 2 and the ventilation duct 3, a control module 6 inserted into the support member 1, the control module 6 being electrically connected to the detection mechanism 4 via a conductive slip ring 5, and a wind guide member 7 provided on the ventilation duct 3, which can drive the ventilation duct 3 to rotate according to the wind direction.

[0027] The working principle of this utility model is as follows: The staff places the device in the indoor testing area and starts the device through the control module 6. When there is wind at the testing area, the wind guide 7 can drive the outer frame 2 and the ventilation duct 3 to rotate according to the wind direction, so that the wind can blow towards the ventilation duct 3. At this time, the testing mechanism 4 works under the action of wind force and detects the wind force and duration. The conductive slip ring 5 can ensure that the control module 6 continuously supplies power to the testing mechanism 4 when the outer frame 2 and the ventilation duct 3 rotate.

[0028] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 Appendix Figure 7 As shown:

[0029] The outer frame 2 includes a frame 201 fixedly connected to the ventilation duct 3. The detection mechanism 4 includes a resistance rod 401 located inside the frame 201. A collar 402 is sleeved on the resistance rod 401. A second slider 405 is provided on the collar 402. The ventilation duct 3 includes a cylinder 301. A slide seat 302 is provided at the bottom of the cylinder 301. A second slide groove 303 is provided on the slide seat 302. A second slide rod 304 is provided in the slide groove 303 and is slidably connected to the second slider 405. A first spring 305 is sleeved on the slide rod 304 and its end abuts against the second slider 405. A slide plate 406 is provided on the second slider 405. A baffle plate 407 located inside the cylinder 301 is provided on the slide plate 406.

[0030] The frame 201 is provided with a sliding groove 204, and a sliding rod 205 is provided in the sliding groove 204. The bottom of the collar 402 is provided with a slider 403 that is slidably connected to the sliding rod 205. The slider 403 is provided with a conductive element 404 that can be electrically connected to both the resistor rod 401 and the sliding rod 205. The ends of the sliding rod 205 and the resistor rod 401 are both electrically connected with wires 408. The ends of the wires 408 are provided with conductive sliders 409 and are electrically connected to the conductive slip ring 5 through conductive sliders 409.

[0031] The support member 1 includes a base 101, an electric telescopic rod 102 is provided on the base 101, the top of the telescopic rod of the electric telescopic rod 102 is provided with a socket 104, the bottom of the frame 201 is provided with a rotating seat 202, the bottom of the rotating seat 202 is provided with a plug rod 203 that is inserted into the socket 104, and the outer frame 2 rotates relative to the support member 1 through the rotating seat 202.

[0032] The conductive component 404 includes a conductive cylinder 4041 located inside the slider 403. A limiting slide plate 4042 is slidably disposed inside the conductive cylinder 4041. A spring 4044 is disposed between the two limiting slide plates 4042. A conductive slider 4043 passing through the conductive cylinder 4041 is disposed on the limiting slide plate 4042. The two conductive sliders 4043 are slidably connected to the slider 205 and the resistor 401, respectively.

[0033] In order for this device to detect the air volume in the ventilation effect, the present invention is provided with a support member 1. The operator installs the control module 6 onto the support member 1, and the insertion rod 203 of the rotator 202 is inserted into the insertion hole 104. At this time, the conductive slip ring 5 can be sleeved on the outside of the electric telescopic rod 102. The ventilation effect can be detected by starting the detection mechanism 4 through the control module 6.

[0034] When the wind passes through the cylinder 301, the force of the wind pushes the wind deflector 407 to move along the cylinder 301. The wind deflector 407 drives the collar 402 to move along the resistance rod 401 via the slider 405. Since the current path is through the control module 6 to the conductive slip ring 5, the conductive slip ring 5 transmits the current to the resistance rod 401 through a wire 408. The resistance rod 401 passes through the conductive element 404 and the slider 205, and then through another wire 408 to guide the current back to the control module 6 to form a loop. That is, when the conductive element 404 moves on the resistance rod 401, it will change the resistance in the circuit, and the current will also change. At this time, the control module 6 records the duration and magnitude of the current, thereby obtaining the wind force and duration.

[0035] When the wind pushes the wind deflector 407 to move, the wind deflector 407 compresses the spring 305. When the wind direction changes, the outer frame 2 and the ventilation duct 3 can rotate under the action of the wind guide 7, making the detection of ventilation effect more accurate.

[0036] When it is necessary to continuously move the testing location, the support 1 can be separated from the other components, and the staff can hold the frame 201 and the control module 6 and place them at the testing location. Then, adjust the wind guide 7 so that the wind guide 7 can rotate relative to the ventilation duct 3. At this time, the ventilation duct 3 needs to be manually adjusted to align with the wind guide 7 to achieve the effect of facing the wind direction, which is convenient for testing the ventilation effect.

[0037] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 As shown:

[0038] The control module 6 includes a controller body 601, a control panel 602 and a handle 603 on the controller body 601, a locking block 103 on the electric telescopic rod 102, a locking groove 604 on the controller body 601 that engages with the locking block 103, and a conductive slip ring 5 located on the controller body 601 and electrically connected to the controller body 601.

[0039] The wind guide 7 includes a top seat 701 fixed to the cylinder 301, a guide 702 rotatably inserted into the top seat 701, and a locking bolt 703 provided on the top seat 701.

[0040] When conducting long-term ventilation tests at a fixed location, align the guide 702 with the ventilation duct 3 and tighten the locking bolt 703. At this time, the wind guide 7 can drive the ventilation duct 3 to rotate. When the ventilation test needs to be conducted by hand, the locking bolt 703 needs to be loosened so that the guide 702 can rotate relative to the ventilation duct 3. At this time, the orientation of the guide 702 can be observed, which makes it easier for staff to judge the wind direction and adjust the ventilation duct 3 in a timely manner.

[0041] When implementing this portable indoor ventilation effect testing device, first select the usage method according to the testing requirements: If a fixed location is required for long-term testing, place the base 101 of the support 1 at the indoor testing location, insert the outer frame 2 into the top of the electric telescopic rod 102, and then snap the control module 6 into the electric telescopic rod 102 to fix it, so that the conductive slip ring 5 is fitted onto the outside of the electric telescopic rod 102; when adjusting the air guide 7, align the guide 702 with the cylinder 301 of the ventilation duct 3, tighten the locking bolt 703 to fix the guide 702, start the electric telescopic rod 102 to adjust the testing height through the control panel 602 of the control module 6, and then start the testing function. When there is wind indoors, the guide 702 is driven by the wind to rotate the cylinder 301 and the frame 201 around the rotating seat 202, so that the wind is directed towards the inside of the cylinder 301. The wind force pushes the wind deflector 407 to move. The wind deflector 407 drives the slider 405 to slide along the slide rod 304 through the slide plate 406 and compress the spring 305. At the same time, the slider 405 drives the collar 402 to move along the resistance rod 401. The two conductive sliders 4043 of the conductive component 404 inside the slider 403 are in contact with the resistance rod 401 and the slide rod 205 respectively under the action of the spring 4044. The movement of the collar 402 changes the resistance value of the circuit. The control module 6 records the wind force by detecting the change in current and judges the ventilation status based on the duration of the current. If mobile testing is required, support component 1 can be disassembled. The operator holds the handle 603 of control module 6 and frame 201, loosens the locking bolt 703 to allow guide component 702 to rotate freely, and judges the wind direction by observing the orientation of guide component 702. After manually adjusting cylinder 301 to face the wind direction, the above testing steps are repeated to ensure that the testing process is stable.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A portable indoor ventilation effect testing device, comprising a support member (1), characterized in that: An outer frame (2) is inserted into the support member (1), and a ventilation duct (3) for exhausting air is fixed to the outer frame (2). The outer frame (2) and the ventilation duct (3) are equipped with a detection mechanism (4) for detecting wind force. A control module (6) is also inserted into the support member (1). The control module (6) is electrically connected to the detection mechanism (4) through a conductive slip ring (5). A wind guide (7) is provided on the ventilation duct (3). The wind guide (7) can drive the ventilation duct (3) to rotate according to the wind direction.

2. The portable indoor ventilation effect testing device according to claim 1, characterized in that: The outer frame (2) includes a frame (201) fixed to the ventilation duct (3), and the detection mechanism (4) includes a resistance rod (401) located inside the frame (201). The resistance rod (401) is fitted with a collar (402), and a slider (405) is provided on the collar (402). The ventilation duct (3) includes a cylinder (301), a slide seat (302) is provided at the bottom of the cylinder (301), a slide groove (303) is provided on the slide seat (302), a slide rod (304) is provided in the slide groove (303) and is slidably connected to the slider (405). A spring (305) is fitted on the slide rod (304) and its end abuts against the slider (405). A slide plate (406) is provided on the slider (405), and a baffle plate (407) located inside the cylinder (301) is provided on the slide plate (406).

3. The portable indoor ventilation effect testing device according to claim 2, characterized in that: The frame (201) is provided with a sliding groove (204), the sliding groove (204) is provided with a sliding rod (205), the bottom of the collar (402) is provided with a slider (403) that is slidably connected to the sliding rod (205), the slider (403) is provided with a conductive component (404) that can be electrically connected to both the resistor rod (401) and the sliding rod (205) at the same time, the ends of the sliding rod (205) and the resistor rod (401) are electrically connected with wires (408), the ends of the wires (408) are provided with conductive sliders (409) and are electrically connected to the conductive slip ring (5) through conductive sliders (409).

4. The portable indoor ventilation effect testing device according to claim 2, characterized in that: The support member (1) includes a base (101), an electric telescopic rod (102) is provided on the base (101), the top of the telescopic rod of the electric telescopic rod (102) is provided with a socket (104), the bottom of the frame (201) is provided with a swivel (202), the bottom of the swivel (202) is provided with a plug rod (203) that is inserted into the socket (104), and the outer frame (2) rotates relative to the support member (1) through the swivel (202).

5. A portable indoor ventilation effect testing device according to claim 4, characterized in that: The control module (6) includes a controller body (601), a control panel (602) and a handle (603) are provided on the controller body (601), a locking block (103) is provided on the electric telescopic rod (102), a slot (604) is provided on the controller body (601) to engage with the locking block (103), and a conductive slip ring (5) is located on the controller body (601) and electrically connected to the controller body (601).

6. The portable indoor ventilation effect testing device according to claim 2, characterized in that: The wind guide (7) includes a top seat (701) fixed to the cylinder (301), a guide (702) is rotatably inserted on the top seat (701), and a locking bolt (703) is provided on the top seat (701).

7. The portable indoor ventilation effect testing device according to claim 3, characterized in that: The conductive component (404) includes a conductive cylinder (4041) located inside the slider (403), a limiting slide plate (4042) correspondingly slidably disposed inside the conductive cylinder (4041), a spring (4044) between the two limiting slide plates (4042), and a conductive slider (4043) passing through the conductive cylinder (4041) on the limiting slide plate (4042). The two conductive sliders (4043) are slidably connected to the slider (205) and the resistor (401) respectively.

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