Temperature and humidity transmitter with protection structure

Abstract

The utility model provides a humiture transmitter with a protection structure, relates to the humiture transmitter technology field, the humiture transmitter with the protection structure comprises a transmitter body, a probe and a dustproof device, the bottom of the transmitter body is fixedly provided with a transmission rod, the probe is in threaded connection with the bottom of the transmission rod, the inner wall of the probe is provided with a support edge, and the dustproof device is arranged on the support edge. The dustproof device is installed on the probe and comprises a dustproof net and a positioning device, the top of the dustproof net is provided with a supporting ring, the positioning device comprises a rotating rod, an auxiliary block and a limiting block, the top of the rotating rod is fixedly connected with the auxiliary block, the bottom of the rotating rod is fixedly connected with the limiting block, and the limiting block is matched with the limiting hole. The rotating rod is movably connected into the supporting ring, the dustproof net can block dust in the environment, dust is prevented from being accumulated on the probe, and the situation that temperature and humidity signals are collected by the probe is influenced is prevented, and the limiting block is matched with the limiting hole, so that the dustproof net can be limited.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature and humidity transmitters, in particular to a temperature and humidity transmitter with a protective structure. Background Art

[0002] The temperature and humidity transmitter is a device that integrates temperature sensor, humidity sensor, measurement circuit, operational amplifier circuit and signal conversion circuit. It is mainly used to measure ambient temperature and humidity and convert them into electrical signal output. The temperature and humidity transmitter has excellent long-term stability, low hysteresis, strong resistance to chemical pollution and excellent repeatability. It is an ideal solution for accurately measuring relative humidity and temperature. It is widely used in building automation, climate and HVAC automatic control, climate stations in museums and hotels, and closed-loop control in HVAC systems.

[0003] Existing temperature and humidity transmitters include a transmitter body and a probe. The probe is a component that is in direct contact with the environment. If dust accumulates on it, it will affect its collection of temperature and humidity signals. The adhesion of dust may change the thermal conductivity or humidity sensitivity of the probe, causing deviations in the measurement data and reducing measurement accuracy. The accumulation of dust may also cause short circuits or component damage in the probe's internal circuits, causing equipment failures. Especially in high humidity or humid environments, the moisture in the dust may contact the circuit and cause electrical problems, causing damage to the equipment.

[0004] Therefore, it is necessary to provide a new temperature and humidity transmitter with a protective structure to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a temperature and humidity transmitter with a protective structure.

[0006] The utility model provides a temperature and humidity transmitter with a protective structure, comprising a transmitter body, a probe and a dustproof device, wherein a transmission rod is fixedly installed at the bottom of the transmitter body, the probe is threadedly connected to the bottom of the transmission rod, a support edge is provided on the inner wall of the probe, a limiting hole is provided on the support edge, and the dustproof device is installed on the probe;

[0007] The dustproof device includes a dustproof net and a positioning device, the dustproof device is installed on the probe through the positioning device, a support ring is provided on the top of the dustproof net, the positioning device includes a rotating rod, an auxiliary block and a limit block, the top of the rotating rod is fixedly connected to the auxiliary block, the bottom of the rotating rod is fixedly connected to the limit block, the limit block is adapted to the limit hole, and the rotating rod is movably connected in the support ring.

[0008] Preferably, a screen and operation buttons are provided on the transmitter body, and a signal output connector is installed at the bottom of the transmitter body.

[0009] Preferably, the diameter of the outer circle of the support ring is not greater than the diameter of the outer circle of the support edge, and the diameter of the outer circle of the support ring is greater than the diameter of the inner circle of the support edge.

[0010] Preferably, the length of the rotating rod is not less than the sum of the heights of the supporting ring and the supporting edge.

[0011] Preferably, a handle is fixedly connected to the auxiliary block, the handle passes through the auxiliary block, and the diameter of the auxiliary block is greater than the diameter of the rotating rod.

[0012] Preferably, the rotating rod is a cylinder, and the dustproof net is a nano-scale dustproof net.

[0013] Compared with the related art, the temperature and humidity transmitter with a protective structure provided by the utility model has the following beneficial effects: when using the temperature and humidity transmitter with a protective structure, align the auxiliary block on the dustproof net with the limiting hole on the supporting edge of the probe, and place the supporting ring downward. When the bottom surface of the supporting ring and the top surface of the supporting edge are tightly fitted, the limiting block has reached the bottom of the supporting edge. The auxiliary block is rotated to stagger the limiting block and the limiting hole, which plays a role in positioning the dustproof net. In addition, the dustproof net is relatively easy to disassemble and can be cleaned in time to prevent long-term dust accumulation, which leads to a decrease in the effectiveness of the dustproof net. The dustproof net can block particulate dust in the environment to prevent dust from accumulating on the probe, affecting the probe's collection of temperature and humidity signals, and avoiding dust accumulation that causes short circuit in the probe's internal circuit or damage to components, causing equipment failure. Especially in high humidity or humid environments, moisture in the dust may contact the circuit and cause electrical problems, causing damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a temperature and humidity transmitter with a protective structure provided by the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the structure of the probe and the dustproof device shown;

[0016] Figure 3 for Figure 2 A top view of the probe combined with the dust protection device is shown;

[0017] Figure 4 for Figure 3 The structural schematic diagram of the positioning device is shown.

[0018] Numbers in the figure: 1. Transmitter body; 2. Transmission rod; 3. Dustproof device; 4. Screen; 5. Operation button; 6. Probe; 7. Signal output connector; 8. Dustproof net; 9. Support ring; 10. Positioning device; 11. Limit hole; 12. Support edge; 13. Limit block; 14. Rotating rod; 15. Auxiliary block; 16. Handle. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1-Figure 4 ,in, Figure 1 A schematic diagram of the structure of a temperature and humidity transmitter with a protective structure provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the probe and the dustproof device shown; Figure 3 for Figure 2 A top view of the probe combined with the dust protection device is shown; Figure 4 for Figure 3 The structural schematic diagram of the positioning device is shown.

[0021] In the specific implementation process, Figure 1-Figure 4 As shown, a temperature and humidity transmitter with a protective structure includes a transmitter body 1, a probe 6 and a dustproof device 3, the dustproof device 3 is installed on the probe 6, a transmission rod 2 is fixedly installed at the bottom of the transmitter body 1, and the probe 6 is threadedly connected to the bottom of the transmission rod 2. When the dustproof net 8 needs to be removed for cleaning, the probe 6 can be removed by directly rotating the probe 6, which is convenient for cleaning the dustproof net 8. A supporting edge 12 is provided on the inner wall of the probe 6, and the supporting edge 12 is used to support the dustproof device 3. A limiting hole 11 is provided on the supporting edge 12, and the limiting hole 11 is used to limit the dustproof device 3 in the probe;

[0022] The dustproof device 3 includes a dustproof net 8 and a positioning device 10. The dustproof device 3 is installed on the probe 6 through the positioning device 10. The positioning device 10 cooperates with the limiting hole 11. A support ring 9 is provided on the top of the dustproof net 8. The support ring 9 cooperates with the supporting edge 12. The supporting edge 12 is used to support the support ring 9 and the dustproof net 8. The positioning device 10 includes a rotating rod 14, an auxiliary block 15 and a limiting block 13. The top of the rotating rod 14 is fixedly connected to the auxiliary block 15, and the bottom of the rotating rod 14 is fixedly connected to the limiting block 13. The limiting block 13 is adapted to the limiting hole 11, and the limiting block 13 can extend into the limiting hole 11. The rotating rod 14 is movably connected to the supporting ring 9. The rotating rod 14 can rotate inside the supporting ring 9. When the auxiliary block 15 is rotated, the rotating rod 14 can be driven to rotate inside the supporting ring 9. The rotation of the rotating rod 14 can drive the rotation of the limiting block 13, and the dustproof net 8 can be limited. The auxiliary block 15 is above the supporting ring 9, and the limiting block 13 is below the supporting ring 9.

[0023] The transmitter body 1 is provided with a screen 4 and an operation button 5, the operation button 5 is used to set the specified temperature and humidity, the screen 4 is used to display the specified temperature and humidity and the actual temperature and humidity in the environment, and the bottom of the transmitter body 1 is provided with a signal output connector 7, which converts the temperature and relative humidity information in the environment obtained by the probe 6 into a corresponding standard analog signal;

[0024] The outer diameter of the support ring 9 is not larger than the outer diameter of the support edge 12, so that the dust net 8 can be placed inside the probe 6, and the outer diameter of the support ring 9 is larger than the inner diameter of the support edge 12, so that the dust net 8 will not fall off the probe, and the positioning device 10 on the support ring 9 can cooperate with the limiting hole 11 on the support edge 12 to play a limiting role;

[0025] The length of the rotating rod 14 is not less than the sum of the heights of the supporting ring 9 and the supporting edge 12, so that the limit block 13 can reach the bottom of the supporting edge 12, and the rotating rod 14 can be driven to rotate by rotating the auxiliary block 15, thereby driving the limit block 13 to rotate, so that the limit block 13 is staggered with the limit hole 11, thereby achieving the function of limiting the dustproof net 8;

[0026] A handle 16 is fixedly connected to the auxiliary block 15, and the handle 16 passes through the auxiliary block 15. The diameter of the auxiliary block 15 is larger than the diameter of the rotating rod 14, and the auxiliary block 15 serves as an upper and lower limit for the rotating rod 14, so that the positioning device 10 can be stably placed in the support ring 9;

[0027] The rotating rod 14 is a cylinder. The cylindrical shape enables the rotating rod 14 to rotate more smoothly and with less friction inside the support ring 9. The dustproof net 8 is a nano-scale dustproof net, which can block smaller dust. The nano-scale dustproof net has very strong hardness, stability and corrosion resistance, and has a long service life.

[0028] The working principle provided by the utility model is as follows: when using the temperature and humidity transmitter with a protective structure, align the auxiliary block 15 on the dustproof net 8 with the limiting hole 11 on the supporting edge 12 of the probe 6, and place the supporting ring 9 downward. When the bottom surface of the supporting ring 9 and the top surface of the supporting edge 12 are tightly fitted, the limiting block 13 has reached the bottom of the supporting edge 12. Turn the handle 16 to drive the limiting block 13 on the rotating rod 14 to rotate, so that the limiting block 13 is staggered from the limiting hole 11, and the dustproof net 8 is positioned on the supporting edge 12. Then, the probe 6 is threadedly connected to the transmission rod 2. When the dustproof net 8 needs to be removed for cleaning, rotate the probe 6 to remove it from the transmission rod 2, and turn the handle 16 again to drive the limiting block 13 on the rotating rod 14 to rotate. When the limiting block 13 is aligned with the limiting hole 11, the dustproof net 8 can be removed.

[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A temperature and humidity transmitter with a protective structure, characterized in that: The transmitter body (1) comprises a transmitter body (1), a probe (6) and a dustproof device (3); a transmission rod (2) is fixedly mounted on the bottom of the transmitter body (1); the probe (6) is threadedly connected to the bottom of the transmission rod (2); a support edge (12) is arranged on the inner wall of the probe (6); a limiting hole (11) is provided on the support edge (12); and the dustproof device (3) is mounted on the probe (6); The dustproof device (3) comprises a dustproof net (8) and a positioning device (10). The dustproof device (3) is installed on the probe (6) through the positioning device (10). A support ring (9) is arranged on the top of the dustproof net (8). The positioning device (10) comprises a rotating rod (14), an auxiliary block (15) and a limit block (13). The top of the rotating rod (14) is fixedly connected to the auxiliary block (15), and the bottom of the rotating rod (14) is fixedly connected to the limit block (13). The limit block (13) is adapted to the limit hole (11), and the rotating rod (14) is movably connected to the support ring (9).

2. The temperature and humidity transmitter with a protective structure according to claim 1, characterized in that: The transmitter body (1) is provided with a screen (4) and an operation button (5), and the bottom of the transmitter body (1) is provided with a signal output connector (7).

3. The temperature and humidity transmitter with a protective structure according to claim 2, characterized in that: The diameter of the outer circle of the support ring (9) is not greater than the diameter of the outer circle of the support edge (12), and the diameter of the outer circle of the support ring (9) is greater than the diameter of the inner circle of the support edge (12).

4. The temperature and humidity transmitter with a protective structure according to claim 3, characterized in that: The length of the rotating rod (14) is not less than the sum of the heights of the supporting ring (9) and the supporting edge (12).

5. The temperature and humidity transmitter with a protective structure according to claim 4, characterized in that: A handle (16) is fixedly connected to the auxiliary block (15), and the handle (16) passes through the auxiliary block (15). The diameter of the auxiliary block (15) is greater than the diameter of the rotating rod (14).

6. The temperature and humidity transmitter with a protective structure according to claim 5, characterized in that: The rotating rod (14) is a cylinder, and the dustproof net (8) is a nano-scale dustproof net.

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