Wireless temperature and humidity transmitter

Abstract

The invention discloses a wireless temperature and humidity transmitter, and relates to the technical field of sensors, the wireless temperature and humidity transmitter comprises a transmitter mechanism, two traction mechanisms are arranged below the transmitter mechanism, signal lines are connected between the traction mechanisms and the transmitter mechanism, each traction mechanism comprises an outer cylinder and an inner sliding assembly, and the outer cylinder is connected with the inner sliding assembly. The outer side wall of the outer cylinder is rotationally connected with a wobble wheel, and the outer side wall of the inner sliding assembly is rotationally connected with a linkage rod. The wobble wheels capable of freely rotating are arranged on the outer side wall of the outer cylinder at equal intervals, one ends of the wobble wheels are supported and connected through the linkage rods, meanwhile, the linkage rods are rotationally connected to the outer side wall of the inner sleeve, and traction tension for mutual contraction of the inner sleeve and the outer cylinder is provided through the tension springs; the larger the amplitude of outward swinging of the wobble wheel under the supporting effect is, the wobble wheel can be completely attached to the inner side wall of the pipeline, environmental data in a certain area in the pipeline can be stably measured, and the measurement structure precision of the transmitter is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sensors, in particular to a wireless temperature and humidity transmitter. Background Art

[0002] Temperature and humidity transmitters mostly use integrated temperature and humidity probes as temperature measuring elements to collect temperature and humidity signals. After signal conversion and other circuit processing, they are converted into current signals or voltage signals that are linearly related to temperature and humidity for output. The so-called wireless temperature and humidity transmitter transmits circuit signals in the form of wireless waves, which simplifies the line connection method of the transmitter and optimizes the overall structural layout.

[0003] For example, the "integrated HART wireless temperature and humidity transmitter device" with patent publication number CN216283683U includes a box body, a receiving box and a suction cup. A slide block is installed at the bottom of the receiving box, a slide plate is installed on the outer wall of the slide block, a receiving groove is opened at the bottom of the receiving box, a clamp is installed on the inner top wall of the receiving groove, a motor is installed on the inner wall of the receiving box, a winding wheel is installed at the output end of the motor, a cable is installed on the outer wall of the winding wheel, and a sensor is installed on the outer wall of the cable.

[0004] Wireless temperature and humidity transmitters can be used to detect temperature and humidity in a sealed environment, and transmit the detection data to a terminal display device via wireless waves. In the prior art, the transmitter can be stably installed on a flat ground to effectively collect and measure the environment in a certain area for a long time. However, in the prior art, when measuring temperature and humidity in an arc-shaped sealed environment such as a pipeline, the transmitter cannot be effectively installed in a fixed position, resulting in deviations in the measurement structure. Summary of the invention

[0005] The object of the present invention is to provide a wireless temperature and humidity transmitter, in which freely rotatable swing wheels are arranged at equal intervals on the outer wall of the outer cylinder, one end of the swing wheel is supported and connected by a linkage rod, and the linkage rod is also rotatably connected to the outer wall of the inner sleeve, and a traction force for the inner sleeve and the outer cylinder to contract each other is provided by a tension spring. When the distance between the inner sleeve and the outer cylinder is shortened, the swing wheel is supported and swung outward by a greater amplitude, and can be completely fitted with the inner wall of the pipeline, and can stably measure the environmental data in a certain area in the pipeline, thereby improving the measurement structure accuracy of the transmitter to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wireless temperature and humidity transmitter, comprising a transmitter mechanism, a cavity for assembling the transmitter is opened on the pipeline, the transmitter mechanism is installed on the cavity, and is sealed, two traction mechanisms are arranged below the transmitter mechanism, signal lines are connected between the traction mechanisms and the transmitter mechanism, the two traction mechanisms are arranged in the pipeline, and signals are transmitted with the transmitter mechanism through the signal lines, the traction mechanism comprises an outer cylinder and an inner sliding component, the outer wall of the outer cylinder is rotatably connected with a swing wheel, the outer wall of the inner sliding component is rotatably connected with a linkage rod, the other end of the linkage rod is rotatably connected with the swing wheel, the outer cylinder and the inner sliding component are slidably connected, in order to place the detection probe on the axis of the pipeline, the outer cylinder is swung outward, so that the angle of the outward expansion of multiple groups of swing wheels becomes larger, until the wheel at the tail end of the swing wheel overlaps the inner wall of the pipeline, so that the position of the detection probe is stabilized on the axis, so that the detection probe can move smoothly along the axis in the pipeline, which is convenient for the detection probe to move and measure within a certain range of the pipeline, the inner wall of the outer cylinder and the outer wall of the inner sliding component are connected to each other. A tension spring is fixedly connected between the side walls, one end of the two signal lines passes through the axis of the inner sliding component to the outside of the outer cylinder and is fixedly connected with a detection probe, one of the detection probes is used to detect the temperature in the pipeline, and the other detection probe is used to detect the humidity in the pipeline, the two ends of the signal line are exposed from the outer end of the outer cylinder respectively, the signal line is connected to the detection probe signal, and the temperature and humidity data in the pipeline are tested respectively, wherein a tension spring is arranged between the outer cylinder and the inner sliding component, and the inner sliding component is pulled toward the outer cylinder by the pulling force of the outer cylinder on the inner sliding component, so that the linkage rod is stretched outward and the swing wheel is lifted outward, so as to adjust the angle of the wheel as a whole, so as to facilitate the positioning and installation of the detection probes in different pipe diameters, so as to test the temperature and humidity conditions in pipes of different sizes and specifications, one group of detection probes measures the temperature data in the pipeline through thermistors, and transmits the resistance signal of the thermistors to the second electrical connector through the signal line, and the other group of detection probes uses capacitors with high humidity sensitivity to measure, and uses the capacitance value of the capacitor to test the humidity information in the pipeline, and also transmits the electrical signal to the second electrical connector through the signal line.

[0007] Preferably, a circular baffle is provided on one side of the detection probe, and the detection probe is clamped with the outer cylinder through the circular baffle. The circular baffle is provided to prevent the detection probe from detaching from the inner sliding component, thereby ensuring that the detection probe can contact the air for normal detection.

[0008] Preferably, the inner sliding assembly comprises an inner sleeve, one side of the inner sleeve is fixedly connected to the inner sliding cylinder, and the other side of the inner sleeve is fixedly connected to a circular retaining ring.

[0009] Preferably, the outer side wall of the inner sliding cylinder is slidably connected to the inner side wall of the outer cylinder, and the side wall of the inner sleeve is provided with limiting holes at equal intervals along the periphery.

[0010] Preferably, a limiting column is arranged between the two traction mechanisms, and the outer wall of the limiting column is slidably connected to the inner wall of the limiting hole, and the connection is achieved through the middle limiting column, so that when the two groups of inner slide cylinders drive the inner sleeves to slide, the two inner sleeves always remain connected, ensuring that the two traction mechanisms are connected to move as a whole.

[0011] Preferably, the transmitter mechanism includes flange one and flange two, flange two is connected to the pipeline through a sealing gasket and screws, and flange one is connected to flange two through screws. After the traction mechanism and the detection probe are placed in the pipeline to measure the data, the data of the two sets of detection probes are transmitted to the transmitter mechanism, a sealed connection is achieved with the pipeline through flange two, and data signal docking is achieved through flange one and flange two.

[0012] Preferably, the inner wall of flange one is fixedly connected with electrical connector one, the center position of flange two is fixedly connected with electrical connector two, one end of the signal line is provided with a threaded head, the signal line is threadedly connected to flange two through the threaded head, the sealing of the signal line and the transmitter mechanism is ensured, one end of the signal line is threadedly sealed to flange two through the threaded head, and a rubber ring is provided at the sealing port to prevent leakage.

[0013] Preferably, the signal line is fixedly connected to the electrical connector 2, and the outer wall of the flange 1 is fixedly connected to a signal transmitter, which is wirelessly transmitted to the display device through the signal transmitter, and the electrical signal is converted into a digital signal on the display device and displayed on the screen, thereby achieving the effect of remote monitoring of temperature and humidity in the pipeline.

[0014] Preferably, a rubber ring is provided on the outer side wall of the signal line, and the signal line is clamped with flange 2 through the rubber ring. The electrical connector 2 transmits the signal to the electrical connector 1 respectively, and converts it into an electric wave signal by using a transmitter.

[0015] Preferably, the outer side wall of the tension spring is coated with lubricant, the swing wheels are evenly spaced on the outer periphery of the outer cylinder, and the linkage rods are evenly spaced on the outer periphery of the inner sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a freely rotatable swing wheel is arranged at equal intervals on the outer wall of the outer cylinder, one end of the swing wheel is supported and connected by a linkage rod, and the linkage rod is also rotatably connected to the outer wall of the inner sleeve, and a traction force for the inner sleeve and the outer cylinder to contract each other is provided by a tension spring. When the distance between the inner sleeve and the outer cylinder is shortened, the swing wheel is supported and swung outward by a larger amplitude, and can be completely fitted with the inner wall of the pipeline, and can stably measure the environmental data in a certain area of ​​the pipeline, thereby improving the measurement structure accuracy of the transmitter.

[0017] 2. In the present invention, limiting holes are provided on the surface of the inner sleeve to facilitate positioning between the two groups of inner sliding components, and the connection is achieved by using the limiting column in the middle, so that when the two groups of inner sliding cylinders drive the inner sleeves to slide, the two inner sleeves always remain connected, ensuring that the two traction mechanisms are connected to move as a whole, so that the two detection probes are at the same position to measure the temperature and humidity respectively, and the accuracy of pipeline data measurement is improved by controlling the measurement position.

[0018] 3. In the present invention, the electrical signal measured by the detection probe is transmitted to the electrical connector 2 via the signal line, and the electrical connector 2 transmits it to the electrical connector 1 and converts it into an electric wave signal by the transmitter, which is wirelessly transmitted to the display device via the signal transmitter head. The electrical signal is converted into a digital signal on the display device and displayed on the screen, thereby achieving the effect of long-distance monitoring of the temperature and humidity in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the wireless temperature and humidity transmitter of the present invention; Figure 2 It is a front cross-sectional view of the sealing mechanism in the wireless temperature and humidity transmitter of the present invention; Figure 3 It is a structural schematic diagram of the sealing mechanism in the wireless temperature and humidity transmitter of the present invention; Figure 4 The structure of the traction mechanism in the wireless temperature and humidity transmitter of the present invention is shown in FIG. Figure 1 ; Figure 5 The structure of the traction mechanism in the wireless temperature and humidity transmitter of the present invention is shown in FIG. Figure 2 ; Figure 6 It is a front cross-sectional view of the traction mechanism in the wireless temperature and humidity transmitter of the present invention; Figure 7 The figure is a schematic diagram of the internal structure of the traction mechanism in the wireless temperature and humidity transmitter of the present invention.

[0020] In the figure: 1. traction mechanism; 11. outer cylinder; 12. inner sliding assembly; 121. inner sleeve; 122. inner sliding cylinder; 123. circular baffle ring; 124. limiting hole; 13. swing wheel; 14. linkage rod; 15. tension spring; 2. detection probe; 20. circular baffle plate; 3. signal line; 30. threaded head; 4. transmitter mechanism; 41. flange one; 42. flange two; 43. electrical connector one; 44. electrical connector two; 45. signal transmitter head; 5. rubber ring; 6. limiting column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 according to Figure 1-7 As shown: a wireless temperature and humidity transmitter comprises a transmitter mechanism 4, two traction mechanisms 1 are arranged below the transmitter mechanism 4, a signal line 3 is connected between the traction mechanism 1 and the transmitter mechanism 4, the traction mechanism 1 comprises an outer cylinder 11 and an inner sliding component 12, the outer wall of the outer cylinder 11 is rotatably connected with a swing wheel 13, the outer wall of the inner sliding component 12 is rotatably connected with a linkage rod 14, the other end of the linkage rod 14 is rotatably connected with the swing wheel 13, the outer cylinder 11 and the inner sliding component 12 are slidably connected, a tension spring 15 is fixedly connected between the inner wall of the outer cylinder 11 and the outer wall of the inner sliding component 12, one end of the two signal lines 3 passes through the axis of the inner sliding component 12 to the outside of the outer cylinder 11 and is fixedly connected with a detection probe 2, one of the detection probes 2 is used to detect the temperature in the pipeline, and the other detection probe 2 is used to detect the humidity in the pipeline.

[0023] In this embodiment, a cavity for assembling a transmitter is opened on the pipeline, and the transmitter mechanism 4 is installed on the cavity and sealed. Two traction mechanisms 1 are arranged in the pipeline, and transmit signals with the transmitter mechanism 4 through the signal line 3. In order to place the detection probe 2 on the axis of the pipeline, the outer cylinder 11 is swung outward, so that the angle of the multiple groups of swing wheels 13 to be opened outward is increased, until the wheel at the tail end of the swing wheel 13 overlaps the inner wall of the pipeline; The detection probe 2 is installed on the axis, and the detection probe 2 can move smoothly along the axis in the pipeline, which is convenient for the detection probe 2 to move and measure within a certain range of the pipeline. The two ends of the signal line 3 are exposed from the outer end of the outer cylinder 11 respectively, and the signal line 3 is connected to the detection probe 2 signal to test the temperature and humidity data in the pipeline respectively; Among them, a tension spring 15 is arranged between the outer cylinder 11 and the inner sliding component 12. The inner sliding component 12 is pulled toward the outer cylinder 11 by utilizing the pulling force of the outer cylinder 11 on the inner sliding component 12, so that the linkage rod 14 is stretched outward and the swing wheel 13 is lifted outward, so as to adjust the angle of the wheel as a whole, which is convenient for positioning and installing the detection probe 2 in pipes of different diameters, so as to test the temperature and humidity conditions in pipes of different sizes.

[0024] Embodiment 2 according to Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a circular baffle 20 is provided on one side of the detection probe 2, and the detection probe 2 is clamped with the outer cylinder 11 through the circular baffle 20. The inner sliding component 12 includes an inner sleeve 121, one side of the inner sleeve 121 is fixedly connected to an inner sliding cylinder 122, and the other side of the inner sleeve 121 is fixedly connected to a circular baffle ring 123. The outer wall of the inner sliding cylinder 122 is slidably connected to the inner wall of the outer cylinder 11, and the side wall of the inner sleeve 121 is provided with limiting holes 124 at equal intervals along the periphery. A limiting column 6 is provided between the two traction mechanisms 1, and the outer wall of the limiting column 6 is slidably connected to the inner wall of the limiting hole 124.

[0025] In this embodiment, a circular baffle 20 is provided to prevent the detection probe 2 from detaching from the inner sliding component 12, so as to ensure that the detection probe 2 can contact the air for normal detection, and the inner sliding component 12 is divided into three sections, and the inner end is slidably engaged with the outer cylinder 11 to ensure that the outer cylinder 11 and the inner sleeve 121 are normally engaged at the axial position, and the angles of the swing wheels 13 in all directions are kept consistent, so that the detection probe 2 can be fixed on the inner wall of the pipeline, and a limiting hole 124 is provided on the surface of the inner sleeve 121 to facilitate positioning between the two groups of inner sliding components 12, and finally the connection is achieved through the middle limiting column 6, so that when the two groups of inner sliding cylinders 122 drive the inner sleeves 121 to slide, the two inner sleeves 121 always remain connected, ensuring that the two traction mechanisms 1 are connected to move as a whole, so that the two detection probes 2 are in the same position to measure the temperature and humidity respectively.

[0026] Embodiment 3 according to Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the transmitter mechanism 4 includes a flange 1 41 and a flange 2 42. The flange 2 42 is connected to the pipeline through a sealing gasket and screws. The flange 1 41 is connected to the flange 2 42 through screws. The inner wall of the flange 1 41 is fixedly connected with an electric connector 1 43. The center of the flange 2 42 is fixedly connected with an electric connector 2 44. One end of the signal line 3 is provided with a threaded head 30. The signal line 3 is threadedly connected to the flange 2 42 through the threaded head 30. The signal line 3 is fixedly connected to the electric connector 2 44. The outer wall of the flange 1 41 is fixedly connected with a signal transmitter head 45. The outer wall of the signal line 3 is provided with a rubber ring 5. The signal line 3 is clamped with the flange 2 42 through the rubber ring 5. The outer wall of the tension spring 15 is coated with lubricant. The swing wheels 13 are evenly spaced on the outer periphery of the outer cylinder 11. The linkage rods 14 are evenly spaced on the outer periphery of the inner sleeve 121.

[0027] In this embodiment, after the traction mechanism 1 and the detection probe 2 are placed in the pipeline to measure the data, the data of the two groups of detection probes 2 are transmitted to the transmitter mechanism 4 through the signal line 3, and the pipeline is sealed by the second flange 42, and the data signal is connected by the first flange 41 and the second flange 42, which will ensure the sealing of the signal line 3 and the transmitter mechanism 4, and one end of the signal line 3 is threadedly sealed with the second flange 42 through the threaded head 30, and a rubber ring 5 is set at the sealing port to prevent leakage; A group of detection probes 2 measure the temperature data in the pipeline through thermistors, and transmit the resistance signal of thermistors to electrical connector 2 44 through signal line 3. Another group of detection probes 2 use capacitors with high humidity sensitivity to measure, use the capacitance value of the capacitor to test the humidity information in the pipeline, and also transmit electrical signals to electrical connector 2 44 through signal line 3. Electrical connector 2 44 transmits the signals to electrical connector 1 43 respectively, and converts them into radio wave signals through transmitters, which are wirelessly transmitted to the display device through signal transmitter head 45. The electrical signals are converted into digital signals on the display device and displayed on the screen, so as to achieve the effect of long-distance monitoring of temperature and humidity in the pipeline.

[0028] The use method and working principle of the device are as follows: First, a cavity is opened on the pipeline, the transmitter mechanism 4 is installed on the cavity, and the seal is done well, and two traction mechanisms 1 are arranged inside the pipeline; Then, the traction mechanism 1 is placed on the central axis of the pipeline, and the tension spring 15 is used to apply tension to the outer cylinder 11 and the inner sliding assembly 12 at both ends, so that the outer cylinder 11 and the inner sliding assembly 12 are mutually contracted, and the angle of the swing wheel 13 is controlled by the outer cylinder 11, and the angle of the linkage rod 14 is controlled by the inner sleeve 121. When the outer cylinder 11 and the inner sliding assembly 12 are contracted, the linkage rod 14 is stretched outward and the swing wheel 13 is pushed outward, so that the outward stretching angle of multiple groups of swing wheels 13 becomes larger, so as to adjust the angle of the wheel as a whole, until the wheel at the tail end of the swing wheel 13 overlaps the inner wall of the pipeline; Finally, a group of detection probes 2 measure the temperature data in the pipeline through the thermistor, and transmit the resistance signal of the thermistor to the electrical connector 2 44 through the signal line 3. Another group of detection probes 2 use a capacitor with high humidity sensitivity to measure, and use the capacitance value of the capacitor to test the humidity information in the pipeline, and also transmit electrical signals to the electrical connector 2 44 through the signal line 3. The electrical connector 2 44 transmits the signal to the electrical connector 1 43 respectively, and uses a transmitter to convert it into an electric wave signal, which is wirelessly transmitted to the display device through the signal transmitter 45. The electrical signal is converted into a digital signal on the display device and displayed on the screen.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wireless temperature and humidity transmitter, comprising a transmitter mechanism (4), characterized in that: Two traction mechanisms (1) are arranged below the transmitter mechanism (4), and signal lines (3) are connected between the traction mechanisms (1) and the transmitter mechanism (4). The traction mechanism (1) comprises an outer cylinder (11) and an inner sliding assembly (12). The outer wall of the outer cylinder (11) is rotatably connected to a swing wheel (13), and the outer wall of the inner sliding assembly (12) is rotatably connected to a linkage rod (14). The other end of the linkage rod (14) is rotatably connected to the swing wheel (13). The outer cylinder (11) and the inner sliding assembly (12) are slidably connected. A tension spring (15) is fixedly connected between the inner wall of the outer cylinder (11) and the outer wall of the inner sliding assembly (12). One end of the two signal lines (3) passes through the axis of the inner sliding assembly (12) to the outside of the outer cylinder (11) and is fixedly connected to a detection probe (2). One of the detection probes (2) is used to detect the temperature in the pipeline, and the other detection probe (2) is used to detect the humidity in the pipeline.

2. The wireless temperature and humidity transmitter according to claim 1 is characterized in that: A circular baffle (20) is provided on one side of the detection probe (2), and the detection probe (2) is clamped with the outer cylinder (11) via the circular baffle (20).

3. The wireless temperature and humidity transmitter according to claim 1 is characterized in that: The inner sliding assembly (12) comprises an inner sleeve (121), one side of the inner sleeve (121) is fixedly connected to an inner sliding cylinder (122), and the other side of the inner sleeve (121) is fixedly connected to a circular retaining ring (123).

4. The wireless temperature and humidity transmitter according to claim 3 is characterized in that: The outer wall of the inner sliding cylinder (122) is slidably connected to the inner wall of the outer cylinder (11), and the side wall of the inner sleeve (121) is provided with limiting holes (124) at equal intervals along the circumference.

5. The wireless temperature and humidity transmitter according to claim 1 is characterized in that: A limiting column (6) is provided between the two traction mechanisms (1), and an outer side wall of the limiting column (6) is slidably connected to an inner side wall of the limiting hole (124).

6. The wireless temperature and humidity transmitter according to claim 1, characterized in that: The transmitter mechanism (4) comprises a flange 1 (41) and a flange 2 (42); the flange 2 (42) is connected to the pipeline via a sealing gasket and screws; and the flange 1 (41) is connected to the flange 2 (42) via screws.

7. The wireless temperature and humidity transmitter according to claim 6 is characterized in that: An electric connector 1 (43) is fixedly connected to the inner wall of the flange 1 (41), and an electric connector 2 (44) is fixedly connected to the center of the flange 2 (42). A threaded head (30) is provided at one end of the signal line (3), and the signal line (3) is threadedly connected to the flange 2 (42) via the threaded head (30).

8. The wireless temperature and humidity transmitter according to claim 7, characterized in that: The signal line (3) is fixedly connected to the second electrical connector (44), and the outer side wall of the first flange (41) is fixedly connected to a signal transmitter (45).

9. The wireless temperature and humidity transmitter according to claim 1, characterized in that: The outer wall of the signal line (3) is provided with a rubber ring (5), and the signal line (3) is clamped with the second flange (42) via the rubber ring (5).

10. The wireless temperature and humidity transmitter according to claim 1, characterized in that: The outer wall of the tension spring (15) is coated with lubricant, the swing wheels (13) are evenly spaced on the outer periphery of the outer cylinder (11), and the linkage rods (14) are evenly spaced on the outer periphery of the inner sleeve (121).

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