Ventilation resistance tester

Abstract

The utility model relates to the technical field of instruments and equipment, and discloses a ventilation resistance tester which comprises a detector, a turntable is arranged on the front side of the detector, a plurality of tooth grooves are formed in the turntable at equal intervals, a rotating rod is rotatably connected to the middle of the turntable, a plurality of connecting rods are fixedly connected to the outer side of the rotating rod at equal intervals, and the connecting rods are connected with the rotating rod. And the outer side of the connecting rod is fixedly connected with a first metal gear, the first metal gear is connected with the tooth groove in a meshed mode, the front side of the connecting rod is fixedly connected with a cover plate, and a clamping mechanism is installed on the left side of the detector and used for clamping and fixing. According to the utility model, after the detector is started, an operator rotates the turntable, the metal gear I is fixed with the connecting rod, and the connecting rod is fixed with the rotating rod, so that the rotating rod moves, the detector can flexibly detect the wind speed of a corner with a gap, and the detection accuracy and efficiency are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to instrument equipment technical field especially relates to ventilation resistance tester. BACKGROUND

[0002] Ventilation resistance tester is a kind of professional instrument for detecting the ventilation resistance condition in ventilation system, can accurately measure the resistance size that ventilation duct, various ventilation places in mine are received when airflow flows, help user to analyze the operation state of ventilation system by collecting relevant data, judge whether there is such problem as ventilation is not smooth, resistance is too large, and then provide important basis for optimizing the design of ventilation system, adjusting ventilation facilities and guaranteeing ventilation effect, have indispensable effect in ventilation related field.

[0003] Through the retrieval, China patent publication number is CN202745910U, discloses a kind of ventilation resistance tester, including host part and vice machine part, the host part includes host MCU, liquid crystal display module, wind speed module, temperature and humidity module, air pressure module, clock module and USB interface;The host MCU is connected with wind speed module, temperature and humidity module, air pressure module, clock module by signal, the beneficial effect after the above technical solution is: the test system solves the shortcoming that traditional barometer test method cannot correct atmospheric pressure variation correctly, measurement accuracy is high, but the wind power in corner cannot be effectively measured. UTILITARIAN CONTENT

[0004] In order to make up for the above insufficient, the utility model provides ventilation resistance tester, aims at improving the problem that wind power in corner cannot be effectively measured in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model has adopted the following technical scheme: ventilation resistance tester, including detector, the front side of the detector is provided with carousel, a plurality of gear grooves are equidistantly arranged in the inside of the carousel, rotating rod is rotatably connected in the middle part of the carousel, a plurality of connecting rods are equidistantly fixedly connected on the outside of the rotating rod, metal gear one is fixedly connected on the outside of the connecting rod, the metal gear one is meshingly connected with gear groove, the front side of the connecting rod is fixedly connected with cover plate, clamping mechanism is installed on the left side of the detector, and the clamping mechanism is used to clamp and fix.

[0006] Through the above technical scheme: when the detector starts to work, the rotating disc located in the front side of the detector plays a role, the tooth groove opened in the rotating disc, the rotating rod is rotationally connected with the middle part of the rotating disc, and the multiple connecting rods fixedly connected with the outer side of the rotating rod move synchronously with the rotation of the rotating rod, the metal gear one fixedly connected with the outer side of the connecting rod, due to the meshing connection with the tooth groove, when the rotating rod rotates to drive the connecting rod to rotate, the metal gear one will roll along the tooth groove, thereby making the rotating rod rotate, realizing the angle adjustment of the detector, so that the wind speed of the corner with a gap can be detected.

[0007] As a further description of the above technical scheme:

[0008] The clamping mechanism comprises a protection box, the protection box is installed on the left side of the detector, a knob is arranged on the top of the protection box, a rotating shaft is fixedly connected to the bottom of the knob, a metal gear two is fixedly connected to the bottom of the rotating shaft, a tooth groove rod one is slidably connected to the inner left side of the protection box, the tooth groove rod one is meshingly connected with the left side of the metal gear two, a semicircular clasp one is fixedly connected to the bottom of the tooth groove rod one, a tooth groove rod two is slidably connected to the inner right side of the protection box, the tooth groove rod two is meshingly connected with the right side of the metal gear two, and a semicircular clasp two is fixedly connected to the bottom of the tooth groove rod two.

[0009] Through the above technical scheme: when the detector works, rotating the knob to drive the rotating shaft fixedly connected to the bottom to rotate, the rotating shaft further drives the metal gear two at the bottom to rotate, since the tooth groove rod one is meshingly connected with the left side of the metal gear two and is slidably connected to the inner left side of the protection box, with the rotation of the metal gear two, the tooth groove rod one slides in the protection box, the semicircular clasp one fixedly connected to the bottom of the tooth groove rod one also moves, and the tooth groove rod two is meshingly connected with the right side of the metal gear two, the tooth groove rod two is slidably connected to the inner right side of the protection box, when the metal gear two rotates, the tooth groove rod two also slides in the protection box, and the semicircular clasp two fixedly connected to the bottom of the tooth groove rod two also moves accordingly, the semicircular clasp one and the semicircular clasp two cooperate to fix the detector.

[0010] As a further description of the above technical scheme:

[0011] A button is arranged on the top rear side of the detector.

[0012] Through the above technical scheme: a button is arranged on the detector.

[0013] As a further description of the above technical scheme:

[0014] Multiple anti-slip balls are equidistantly arranged on the top of the button.

[0015] Through the above technical scheme: anti-slip balls are arranged on the button.

[0016] As a further description of the above technical solution:

[0017] A warning sign is installed on the rear right side of the outer wall of the detector.

[0018] The above technical solution involves installing a warning sign on the detector.

[0019] As a further description of the above technical solution:

[0020] The warning sign is threaded with a screw on its outer side.

[0021] The above technical solution involves fixing the warning sign with screws to achieve the desired warning effect.

[0022] As a further description of the above technical solution:

[0023] The detector is equipped with rubber sleeves on both the left and right sides of its top.

[0024] The above technical solution involves installing a rubber sleeve on the testing instrument.

[0025] As a further description of the above technical solution:

[0026] The outer side of the rubber sleeve is threaded with two screws.

[0027] The above technical solution involves fixing the rubber sleeve with screw two, thus providing protection.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the detector is started, the operator rotates the turntable, the metal gear is fixed to the connecting rod, and the connecting rod is fixed to the rotating rod, which in turn causes the rotating rod to move, enabling the detector to flexibly detect wind speed in corners with gaps, ensuring the accuracy and efficiency of the detection.

[0030] 2. In this utility model, when operating the detector, the knob is turned to drive the rotating shaft to rotate, which in turn causes the bottom metal gear two to rotate. The rotation of the metal gear two drives the toothed rod one and the toothed rod two to move, realizing the movement of the semi-circular retaining ring one and the semi-circular retaining ring two. The two work together to fix the detector and ensure that the detector is not affected when it is working. Attached Figure Description

[0031] Figure 1 This is a perspective view of the ventilation resistance tester proposed in this utility model;

[0032] Figure 2 This is a top view of the ventilation resistance tester proposed in this utility model;

[0033] Figure 3 The utility model provides a side view of ventilation resistance testing appearance,

[0034] Figure 4 The utility model provides a partial structure split drawing of ventilation resistance testing appearance,

[0035] Figure 5 The utility model provides a clamping mechanism schematic drawing of ventilation resistance testing appearance.

[0036] Legend:

[0037] 1, detector, 2, clamping mechanism, 201, protective box, 202, knob, 203, pivot, 204, metal gear two, 205, tooth groove rod one, 206, semicircle snap ring one, 207, tooth groove rod two, 208, semicircle snap ring two, 3, turntable, 4, tooth slot, 5, rotating rod, 6, connecting rod, 7, metal gear one, 8, cover plate, 9, button, 10, anti -skid ball, 11, warning board, 12, screw one, 13, rubber sleeve, 14, screw two. Specific implementation

[0038] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0039] With reference to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment: ventilation resistance testing appearance, including detector 1, the front side of detector 1 is provided with turntable 3, a plurality of tooth slots 4 are equidistantly set up in the inside of turntable 3, the middle part of turntable 3 is rotatably connected with rotating rod 5, rotating turntable 3 drives rotating rod 5 to rotate, a plurality of connecting rods 6 are equidistantly fixedly connected on the outside of rotating rod 5, metal gear one 7 is fixedly connected on the outside of connecting rod 6, and then drives metal gear one 7 to move, metal gear one 7 is engagedly connected with tooth slot 4, cover plate 8 is fixedly connected on the front side of connecting rod 6, clamping mechanism 2 is installed on the left side of detector 1, and clamping mechanism 2 is used for clamping and fixing, button 9 is set up on the top rear side of detector 1, a plurality of anti -skid balls 10 are equidistantly set up on the top of button 9, and anti -skid ball 10 plays the role of antiskid,

[0040] Specifically, when the detector 1 starts to run, the rotating disc 3 at the front end of the detector 1 begins to function, the rotating disc 3 is internally provided with a gear slot 4 at the central part of the rotating disc 3, a rotating rod 5 is linked with the rotating disc 3 to rotate, a plurality of connecting rods 6 are fixedly connected to the outer side of the rotating rod 5 at equal distances, the connecting rods 6 move synchronously with the rotation of the rotating rod 5, a metal gear one 7 fixed to the outer side of the connecting rod 6 is engaged with the gear slot 4, when the rotating rod 5 rotates and drives the connecting rod 6 to rotate, the metal gear one 7 will roll along the gear slot 4, thereby promoting the rotation of the rotating rod 5, so that the detector 1 can adjust the angle, thereby detecting the wind speed in the corner with a gap, the upper rear side of the detector 1 is provided with a button 9, a plurality of anti-skid balls 10 are arranged at equal distances on the upper end of the button 9 to play an anti-skid function.

[0041] With reference to Figure 1 , Figure 3 and Figure 5 , the clamping mechanism 2 includes a protection box 201, the protection box 201 is installed on the left side of the detector 1, the top of the protection box 201 is provided with a knob 202, the bottom of the knob 202 is fixedly connected with a rotating shaft 203, rotating the knob 202 drives the rotating shaft 203 to rotate, the bottom of the rotating shaft 203 is fixedly connected with a metal gear two 204, which drives the metal gear two 204 to rotate, the inside left side of the protection box 201 is slidably connected with a gear slot rod one 205, the gear slot rod one 205 is engagedly connected with the left side of the metal gear two 204, the bottom of the gear slot rod one 205 is fixedly connected with a semicircular clasp one 206, the inside right side of the protection box 201 is slidably connected with a gear slot rod two 207, the gear slot rod two 207 is engagedly connected with the right side of the metal gear two 204, the bottom of the gear slot rod two 207 is fixedly connected with a semicircular clasp two 208, the outer wall right rear end of the detector 1 is provided with a warning sign 11, the outer side of the warning sign 11 is threadedly connected with a screw one 12, the warning sign 11 is fixed by the screw one 12, which plays a protective role;

[0042] Specifically, in the operation of the detector 1, the knob 202 is rotated to drive the rotating shaft 203 to rotate, and the rotation of the rotating shaft 203 further drives the metal gear two 204 to rotate. Since the toothed rod one 205 is connected with the left side of the metal gear two 204 in meshing and sliding connection inside the protection box 201, the rotation of the metal gear two 204 causes the toothed rod one 205 to slide inside the protection box 201. At the same time, the semicircular clasp one 206 at the bottom of the toothed rod one 205 moves accordingly. The toothed rod two 207 is connected with the right side of the metal gear two 204 in meshing and sliding connection inside the protection box 201, so that the rotation of the metal gear two 204 also causes the toothed rod two 207 to slide inside the protection box 201, and further causes the semicircular clasp two 208 at the bottom of the toothed rod two 207 to move accordingly. The cooperation of the semicircular clasp one 206 and the semicircular clasp two 208 ensures the stable fixation of the detector 1. The detector 1 is provided with a warning sign 11 connected with a screw one 12 through external threads, and the screw one 12 is used for fixation to realize the warning function.

[0043] Referring to Figure 1 The top and left and right sides of the detector 1 are provided with rubber sleeves 13, and the rubber sleeves 13 are connected with screw two 14 through external threads. The rubber sleeves 13 are fixed through the screw two 14 to play a protection role.

[0044] Specifically, the upper left and right sides of the detector 1 are provided with rubber sleeves 13, and the outer sides of the rubber sleeves 13 are connected with screw two 14 through threads. The rubber sleeves 13 are fixed by using the screw two 14 to play a protection role.

[0045] Working principle: when the detector 1 starts to work and begins to perform its function, the inner part of the rotating disc 3 is carefully provided with a toothed groove 4. In the center part of the rotating disc 3, a rotating rod 5 is tightly connected with it to ensure the synchronous movement between them. The outer side of the rotating rod 5 is connected with a plurality of connecting rods 6, which move synchronously with the continuous rotation of the rotating rod 5. The outer side of the connecting rod 6 is fixed with a metal gear one 7, which is connected with the toothed groove 4 in meshing. Therefore, when the rotating rod 5 rotates, it will drive the connecting rod 6 to rotate, and further make the metal gear one 7 roll along the toothed groove 4, so that the rotating rod 5 can be accurately adjusted in angle, so that the detector 1 can flexibly detect the wind speed in the corner with a gap, and ensure the accuracy and efficiency of the detection.

[0046] During the operation of the detector 1, the knob 202 is rotated to drive the rotating shaft 203 to rotate, and the rotating movement of the rotating shaft 203 is further transmitted to the second bottom metal gear 204 connected thereto, so that the second bottom metal gear 204 also starts to rotate. The left side of the second bottom metal gear 204 is closely meshed and connected with the tooth groove rod 205, so when the second bottom metal gear 204 rotates, the tooth groove rod 205 will also slide on the left side of the inside of the protection box 201 accordingly. The bottom of the tooth groove rod 205 is fixedly connected with a semicircular clasp 206, which will move to a new position with the sliding of the tooth groove rod 205. At the same time, the tooth groove rod 207 is meshed and connected with the right side of the second bottom metal gear 204, and the tooth groove rod 207 is also slidably connected on the right side of the inside of the protection box 201. When the second bottom metal gear 204 rotates, the tooth groove rod 207 will also slide in the protection box 201, and the semicircular clasp 208 fixedly connected to the bottom of the tooth groove rod 207 will also move to a new position accordingly. The semicircular clasp 206 and the semicircular clasp 208 cooperate with each other and act together to effectively stabilize and fix the detector 1, and ensure the stability and accuracy of the detector 1 during work.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. Ventilation resistance tester comprising a detector (1), characterized in that: The front side of the detector (1) is provided with a rotating disc (3), a plurality of tooth grooves (4) are equidistantly arranged in the rotating disc (3), a rotating rod (5) is rotatably connected to the middle part of the rotating disc (3), a plurality of connecting rods (6) are equidistantly fixedly connected to the outer side of the rotating rod (5), a metal gear one (7) is fixedly connected to the outer side of the connecting rod (6), the metal gear one (7) is in meshing connection with the tooth groove (4), a cover plate (8) is fixedly connected to the front side of the connecting rod (6), and a clamping mechanism (2) is mounted on the left side of the detector (1).

2. The duct resistance tester of claim 1, wherein: The clamping mechanism (2) comprises a protection box (201), the protection box (201) is mounted on the left side of the detector (1), a knob (202) is arranged on the top of the protection box (201), a rotating shaft (203) is fixedly connected to the bottom of the knob (202), a metal gear two (204) is fixedly connected to the bottom of the rotating shaft (203), a tooth groove rod one (205) is slidably connected to the left side of the inside of the protection box (201), the tooth groove rod one (205) is in meshing connection with the left side of the metal gear two (204), a semicircular clasp one (206) is fixedly connected to the bottom of the tooth groove rod one (205), a tooth groove rod two (207) is slidably connected to the right side of the inside of the protection box (201), the tooth groove rod two (207) is in meshing connection with the right side of the metal gear two (204), and a semicircular clasp two (208) is fixedly connected to the bottom of the tooth groove rod two (207).

3. The duct resistance tester of claim 1, wherein: The rear side of the top of the detector (1) is provided with a button (9).

4. The vent resistance tester of claim 3, wherein: A plurality of anti-skid balls (10) are equidistantly arranged on the top of the button (9).

5. The duct resistance tester of claim 1, wherein: The right side of the outer wall of the detector (1) is provided with a warning sign (11).

6. The vent resistance tester of claim 5, wherein: The outer side of the warning sign (11) is threadedly connected with a screw one (12).

7. The duct resistance tester of claim 1, wherein: The top of the detector (1) is provided with rubber sleeves (13) on the left and right sides.

8. The duct resistance tester of claim 7, wherein: The outer side of the rubber sleeve (13) is threadedly connected with a screw two (14).

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