Temperature and humidity sensor

Abstract

The utility model relates to the field of temperature and humidity detection, in particular to a temperature and humidity sensor which comprises a sensor body. The outer wall of the sensor main body is provided with a storage groove, the outer side of the storage groove is hinged with a baffle plate, one end of the inner side of the storage groove is fixedly provided with a detection base, and one end of the detection base is provided with a positioning groove. Then the telescopic rod is rotated upwards by 90 degrees, the telescopic rod and the detection probe are retracted into the storage groove, finally the baffle covers the storage groove to seal the storage groove, at the moment, the movable plate can be pushed to move from the outside of the sensor body, one end of the movable plate can push the air bag to be compressed when the movable plate moves, and after the air bag is compressed, airflow flows into the storage groove from the interior of the movable plate; and the air flow directly blows towards the detection probe, so that the air flow enters the detection probe, and finally the air flow can flow out from the air hole, thereby completing the cleaning of residual air in the detection probe, the telescopic rod and the spherical joint.

Description

Technical Field

[0001] The utility model relates to the field of temperature and humidity detection, in particular to a temperature and humidity sensor. Background Art

[0002] The duct type temperature and humidity transmitter is also called the duct type temperature and humidity transmitter. It is mainly used to monitor the temperature and humidity in the duct. The duct type temperature and humidity transmitter is very suitable for measuring the temperature and humidity in various places suitable for duct installation, such as air ducts, flue gas ducts, closed containers, central air conditioning inlets and outlets, etc.

[0003] Publication No.: CN218411271U, discloses a duct-type temperature and humidity sensor with easily modifiable communication parameters, comprising a sensor body, a button is arranged on the upper surface of the sensor body, and a detection probe is arranged at one end of the sensor body.

[0004] In the above-mentioned prior art, in order to solve the problem that when the general temperature and humidity sensor is not in use, the detection probe is exposed to the air for a long time, and the probe is easily damaged by accidental contact, a movable detection probe is provided so that the probe can be retracted into the sensor when not in use, and the probe retracted into the sensor is separated from the outside world by a baffle. However, after use, the above-mentioned probe is affected by the use environment, and the water vapor contained in the residual gas inside the probe remains in the probe after the probe is retracted. When the probe is used next time, it is easy to affect the accuracy of the probe detection. For this reason, we propose a temperature and humidity sensor. Utility Model Content

[0005] The purpose of the utility model is to provide a temperature and humidity sensor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, a temperature and humidity sensor includes a sensor body; a storage groove is provided on the outer wall of the sensor body, a baffle is hinged on the outer side of the storage groove, a detection base is fixedly installed on one end of the inner side of the storage groove, a positioning groove is provided at one end of the detection base, a ball joint is rotatably connected inside the positioning groove, an air hole is provided on the outer wall of the ball joint, one end of the air hole is connected to the inside of a telescopic rod, the telescopic rod is fixedly installed on one end of the ball joint, a detection probe is fixedly installed at the movable end of the telescopic rod, a ventilation mechanism is provided on the outer wall of the sensor body, the air inlet end of the ventilation mechanism matches the position of the detection probe, and the exhaust end of the ventilation mechanism is connected to the inside of the storage groove.

[0007] Further: the ventilation mechanism includes a movable groove, the movable groove is arranged on the outer wall of the sensor body, and a movable plate is slidably connected to the inner side of the movable groove.

[0008] Furthermore: one end of the movable plate extends into the interior of the sensor body and abuts against an airbag, a spring rod is fixedly installed inside the airbag, and one end of the airbag is connected to the interior of the storage groove.

[0009] Furthermore: a first one-way valve cover is arranged inside the airbag, and an air supply hole connected to the first one-way valve cover is arranged on the outer wall of the sensor body.

[0010] Further: the outer wall of the sensor body is provided with a second one-way valve cover, and the lower side of the second one-way valve cover is provided with an exhaust hole connected to the interior of the storage groove.

[0011] Furthermore: a card connector is provided at one end of the baffle, and card connector grooves matching the size of the card connector are provided on both sides of the receiving groove on the outer wall of the sensor body.

[0012] Further: the first one-way valve cover and the second one-way valve cover are made of magnets.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, when the telescopic rod and the detection probe are folded up, the telescopic rod is folded up first, and then the telescopic rod is rotated upward by ninety degrees, and the telescopic rod and the detection probe are retracted into the storage groove, and finally the baffle is covered to close the storage groove. At this time, the movable plate can be pushed to move from the outside of the sensor body, and one end of the movable plate can push the airbag to compress when the movable plate moves. After the airbag is compressed, the airflow flows from the inside thereof into the storage groove and blows directly toward the detection probe, so that the airflow enters the detection probe, and finally the airflow can flow out from the air hole, completing the cleaning of the residual gas in the detection probe, the telescopic rod and the ball joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic elevation diagram of a temperature and humidity sensor of the utility model;

[0016] Figure 2 This is a partial structural diagram of a temperature and humidity sensor of the utility model;

[0017] Figure 3 It is a partially enlarged schematic diagram of a temperature and humidity sensor of the utility model.

[0018] In the figure: 1. sensor body; 2. storage slot; 3. baffle; 4. detection base; 5. positioning slot; 6. ball joint; 7. air hole; 8. telescopic rod; 9. detection probe; 10. ventilation mechanism; 11. movable slot; 12. movable plate; 13. air bag; 14. spring rod; 15. first one-way valve cover; 16. air supply hole; 17. second one-way valve cover; 18. exhaust hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The figure shows a preferred embodiment of the utility model, a temperature and humidity sensor, including a sensor body 1; a storage groove 2 is provided on the outer wall of the sensor body 1, a baffle 3 is hinged on the outer side of the storage groove 2, a detection base 4 is fixedly installed at one end of the inner side of the storage groove 2, a positioning groove 5 is provided at one end of the detection base 4, a ball joint 6 is rotatably connected inside the positioning groove 5, an air hole 7 is provided on the outer wall of the ball joint 6, one end of the air hole 7 is connected to the inside of a telescopic rod 8, the telescopic rod 8 is fixedly installed at one end of the ball joint 6, and a detection probe 9 is fixedly installed at the movable end of the telescopic rod 8, a ventilation mechanism 10 is provided on the outer wall of the sensor body 1, the air inlet end of the ventilation mechanism 10 matches the position of the detection probe 9, and the exhaust end of the ventilation mechanism 10 is connected to the inside of the storage groove 2.

[0021] Specifically, the ventilation mechanism 10 includes a movable groove 11, which is arranged on the outer wall of the sensor body 1. A movable plate 12 is slidably connected to the inner side of the movable groove 11. One end of the movable plate 12 is exposed to the outside of the sensor body 1 through the movable groove 11, so that it is convenient to push the movable plate 12 to move from the outside of the sensor body 1.

[0022] Specifically, one end of the movable plate 12 extends into the interior of the sensor body 1 and abuts against the airbag 13. A spring rod 14 is fixedly installed inside the airbag 13. One end of the airbag 13 is connected to the interior of the storage groove 2. It should be noted that the airbag 13 is partially a compressed airbag, which can be folded and moved when pushed. The spring rod 14 can push the airbag 13 to unfold without external force, and can push the airbag 13 to reset and replenish air after the airbag 13 is compressed. After the airbag 13 is compressed, the airflow flows from its interior to the storage groove 2 and blows directly toward the detection probe 9, so that the airflow enters the detection probe 9.

[0023] Among them, a first one-way valve cover 15 is arranged inside the airbag 13, and an air supply hole 16 connected to the first one-way valve cover 15 is arranged on the outer wall of the sensor body 1. After the airbag 13 is compressed and exhausted, when the airbag 13 is reset, the first one-way valve cover 15 opens under the action of the pressure difference, and the airflow can enter the airbag 13 from the air supply hole 16. The first one-way valve cover 15 is used to prevent the airflow in the airbag 13 from escaping from the air supply hole 16 when it is compressed.

[0024] It can be understood that the outer wall of the sensor body 1 is provided with a second one-way valve cover 17, and the lower side of the second one-way valve cover 17 is provided with an exhaust hole 18 connected to the interior of the storage groove 2. The airflow in the storage groove 2 can follow the exhaust hole 18 and push the second one-way valve cover 17 away from the storage groove 2 when the airbag 13 supplies air to the storage groove 2.

[0025] It should be added that a card connector is provided at one end of the baffle 3, and the outer wall of the sensor body 1 is provided with card connector grooves matching the size of the card connector on both sides of the storage groove 2 to fix the position of the baffle 3 before and after the baffle 3 is opened.

[0026] In order to prevent the first one-way valve cover 15 and the second one-way valve cover 17 from freely moving without external force, the first one-way valve cover 15 and the second one-way valve cover 17 are made of magnets.

[0027] In this embodiment, when the sensor body 1 is used, the baffle 3 can be opened to pull the detection probe 9 and the telescopic rod 8 out of the storage slot 2. Figure 2 From the perspective of viewing angle, the telescopic rod 8 needs to be moved downward along the storage slot 2 and rotated 90 degrees through the ball joint 6 so that the air hole 7 of the ball joint 6 can be aligned with the detection position at one end of the detection base 4 and closed. At this time, the telescopic rod 8 can be unfolded to allow the detection probe 9 to reach the working position to detect the temperature and humidity of the gas in the pipeline. The gas in the pipeline passes through the detection probe 9, the telescopic rod 8 and the air flow channel in the ball joint 6 in turn and then contacts the detection base 4 for detection;

[0028] When the telescopic rod 8 and the detection probe 9 are retracted, the telescopic rod 8 is retracted first, and then the telescopic rod 8 is rotated 90 degrees upward, and the telescopic rod 8 and the detection probe 9 are retracted into the storage groove 2, and finally the baffle plate 3 is covered to close the storage groove 2. At this time, the movable plate 12 can be pushed from the outside of the sensor body 1 to move, and one end of the movable plate 12 can push the airbag 13 to compress when the movable plate 12 moves. After the airbag 13 is compressed, the airflow flows from the inside thereof into the storage groove 2 and blows directly toward the detection probe 9, so that the airflow enters the detection probe 9, and finally the airflow can flow out from the air hole 7 to complete the cleaning of the residual gas in the detection probe 9, the telescopic rod 8 and the ball joint 6. Finally, the gas flowing out of the air hole 7 can push the second one-way valve cover 17 to leave the storage groove 2 when the airbag 13 delivers gas to the storage groove 2;

[0029] It should be added that the spring rod 14 can push the airbag 13 to unfold without the action of external force, and can push the airbag 13 to reset and replenish air after the airbag 13 is compressed. By the way, the movable plate 12 can be reset by resetting the airbag 13. When the movable plate 12 pushes the airbag 13 to compress, it can input gas into the storage groove 2 multiple times to complete the cleaning of water vapor in the residual gas in the probe. It should be noted that the above cleaning work needs to be carried out in an appropriate position, which can be an environment with dry air and good ventilation.

[0030] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A temperature and humidity sensor, comprising a sensor body (1); characterized in that: The outer wall of the sensor body (1) is provided with a storage groove (2), the outer side of the storage groove (2) is hinged with a baffle (3), one end of the inner side of the storage groove (2) is fixedly mounted with a detection base (4), one end of the detection base (4) is provided with a positioning groove (5), the interior of the positioning groove (5) is rotatably connected with a ball joint (6), the outer wall of the ball joint (6) is provided with an air hole (7), one end of the air hole (7) is connected to the interior of a telescopic rod (8), the telescopic rod (8) is fixedly mounted on one end of the ball joint (6), and a detection probe (9) is fixedly mounted on the movable end of the telescopic rod (8), and the outer wall of the sensor body (1) is provided with a ventilation mechanism (10), the air intake end of the ventilation mechanism (10) matches the position of the detection probe (9), and the exhaust end of the ventilation mechanism (10) is connected to the interior of the storage groove (2).

2. A temperature and humidity sensor according to claim 1, characterized in that: The ventilation mechanism (10) comprises a movable groove (11), the movable groove (11) being arranged on the outer wall of the sensor body (1), and a movable plate (12) being slidably connected to the inner side of the movable groove (11).

3. A temperature and humidity sensor according to claim 2, characterized in that: One end of the movable plate (12) extends into the interior of the sensor body (1) and abuts against an airbag (13); a spring rod (14) is fixedly installed inside the airbag (13); and one end of the airbag (13) is in communication with the interior of the storage groove (2).

4. A temperature and humidity sensor according to claim 3, characterized in that: A first one-way valve cover (15) is arranged inside the air bag (13), and an air delivery hole (16) communicating with the first one-way valve cover (15) is arranged on the outer wall of the sensor body (1).

5. A temperature and humidity sensor according to claim 4, characterized in that: The outer wall of the sensor body (1) is provided with a second one-way valve cover (17), and the lower side of the second one-way valve cover (17) is provided with an exhaust hole (18) which is connected to the interior of the storage groove (2).

6. A temperature and humidity sensor according to claim 1, characterized in that: A card connector is provided at one end of the baffle (3), and card connector grooves matching the size of the card connector are provided on both sides of the storage groove (2) on the outer wall of the sensor body (1).

7. A temperature and humidity sensor according to claim 5, characterized in that: The first one-way valve cover (15) and the second one-way valve cover (17) are made of magnets.

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