Portable precise dew-point meter

Abstract

The utility model relates to the technical field of precise dew-point instruments, in particular to a portable precise dew-point instrument, which comprises a dew-point instrument body placed in a portable box, a buffer protection mechanism arranged in the portable box and used for performing double protection on the dew-point instrument body, and a fixed protection mechanism arranged in the portable box. When impact force generated by falling of the portable box enables the dew-point instrument to push a placing plate to move downwards, a sliding rod is pushed to slide towards the bottom of a buffering sliding sleeve and extrude a buffering spring, the impact force is absorbed and slowly released through the elasticity of the buffering spring, the sliding rod moves downwards to extrude magnetorheological fluid in the buffering sliding sleeve to flow into a backflow pipe, the magnetorheological fluid jacks up a rubber film, and the magnetorheological fluid flows into the backflow pipe. The two electric contacts make contact with each other and send out an electric signal to electrify the electromagnetic ring and generate a magnetic field, so that the residual magnetorheological fluid in the buffer sliding sleeve is converted into low-fluidity Bingham fluid, impact force is buffered, the compressed buffer spring is limited, and secondary damage to the dew-point instrument caused by rapid springback of the buffer spring is avoided.

Description

Technical Field

[0001] This utility model relates to the field of precision dew point meter technology, and in particular to a portable precision dew point meter. Background Technology

[0002] For example, Chinese patent CN218956464U discloses a portable precision dew point meter. It takes in air through an air inlet, passes through a filter, a flow control valve, an electronic flow meter, and a dew point sensor, and finally discharges the gas through an air outlet, thereby completing the detection of gas humidity. The detection is more accurate. The outer shell is attached to the outside of the detection body and a shoulder strap, making it easy to carry the detection body and enabling detection in different environments and locations at any time.

[0003] However, the aforementioned precision dew point meter does not have a corresponding protective buffer mechanism. If the precision dew point meter is accidentally dropped during daily use, it is very easy to damage the internal parts of the precision dew point meter, thereby affecting the measurement accuracy and the service life of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a portable precision dew point meter, which solves the technical problem that the lack of a corresponding protective buffer mechanism in existing technologies makes precision dew point meters susceptible to damage from impacts, thus achieving the goal of better protecting the precision dew point meter.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a portable precision dew point meter, including a dew point meter body placed in a portable case, wherein the portable case is provided with a buffer protection mechanism that provides double protection for the dew point meter body, and a fixing protection mechanism that prevents the dew point meter body from shaking and hitting the inner wall of the portable case and causing damage.

[0006] The buffer protection mechanism includes a placement plate installed inside the portable case. Buffer sleeves are installed at the four corners of the bottom of the portable case, and buffer springs are installed inside the buffer sleeves. A sliding rod that slides up and down and is connected to the inner wall of the buffer sleeve is installed on the top of the buffer spring, and the top of the sliding rod is connected to the placement plate. The buffer sleeve is provided with a reinforced buffer component to prevent the buffer spring from rebounding too quickly and causing damage to the dew point meter body.

[0007] A further improvement is that the reinforced buffer assembly includes a magnetorheological fluid injected into the buffer sleeve, and a return pipe is installed at the bottom side of the buffer sleeve. A rubber membrane is installed at the top of the return pipe, and electrical contacts are installed on both the rubber membrane and the top wall of the return pipe. An electromagnetic ring is installed in the installation chamber opened on the buffer sleeve.

[0008] A further improvement is that the electrical contacts are electrically connected to the electromagnetic ring, and there is a certain distance between the two electrical contacts.

[0009] A further improvement is that the fixed protection mechanism includes a bidirectional motor installed at the bottom of the placement plate, and both output ends of the bidirectional motor are connected to lead screws. The lead screws are threadedly connected to threaded sliders that slide left and right on the inner wall of guide grooves opened on the placement plate. A fixing plate is installed on the top of the threaded sliders, and a limiting component is provided on the fixing plate to limit the movement of the dew point meter body from the top.

[0010] A further improvement is that the limiting component includes an array of tension springs installed in a groove on the fixed plate, and an L-shaped sliding plate that slides up and down on the top of the tension spring is mounted on the inner wall of the groove.

[0011] A further improvement is that a pressure sensor is installed in the mounting slot on the fixing plate, and rubber pads are installed on the placement plate, the fixing plate, and the L-shaped sliding plate.

[0012] By employing the above technical solution, this utility model provides a portable precision dew point meter, which has at least the following beneficial effects:

[0013] 1. When the portable case is accidentally dropped, the impact force of the fall causes the dew point meter body on the placement plate to move down and push the slide rod to slide towards the bottom of the buffer sleeve and squeeze the buffer spring. The elasticity of the buffer spring is used to absorb and release the impact force, thereby better protecting the dew point meter body.

[0014] 2. This utility model uses a sliding rod to move down and compress the magnetorheological fluid in the buffer sleeve to flow into the return tube. The magnetorheological fluid pushes up the rubber membrane, causing the two electrical contacts to make contact and send an electrical signal to energize the electromagnetic ring and generate a magnetic field. This transforms the remaining magnetorheological fluid in the buffer sleeve into a low-flow Bingham fluid, thereby buffering the impact force and limiting the compressed buffer spring to prevent the buffer spring from rebounding quickly and causing secondary damage to the dew point meter body.

[0015] 3. This utility model uses a bidirectional motor to drive the lead screw to rotate, which in turn drives the threaded slider on the lead screw to slide relative to each other along the guide groove, thereby driving the two fixing plates to clamp and fix the dew point meter. At this time, the pressure sensor receives pressure and sends an electrical signal to stop the bidirectional motor from running, thus avoiding excessive clamping and damage to the dew point meter. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the portable case of this utility model;

[0020] Figure 3 This is a cross-sectional view of the disassembled structure of the buffer protection mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the independent cross-sectional structure of the fixed protective mechanism of this utility model;

[0022] Figure 5 This is a cross-sectional view of the limiting component of this utility model.

[0023] In the picture: 1. Portable case; 2. Dew point meter body;

[0024] 3. Buffer protection mechanism; 31. Placement plate; 32. Buffer sleeve; 33. Buffer spring; 34. Slide rod;

[0025] 35. Reinforced buffer assembly; 351. Return pipe; 352. Rubber diaphragm; 353. Electrical contact; 354. Electromagnetic ring;

[0026] 4. Fixed protective mechanism; 41. Bidirectional motor; 42. Lead screw; 43. Threaded slider; 44. Fixing plate;

[0027] 45. Limiting component; 451. Tension spring; 452. L-shaped sliding plate;

[0028] 46. ​​Pressure sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Given that existing technologies lack corresponding protective buffer mechanisms, making precision dew point meters susceptible to damage from impacts, this embodiment provides a portable precision dew point meter. Please refer to... Figures 1-5This embodiment provides a portable precision dew point meter that can buffer impact forces and better protect the precision dew point meter. The portable precision dew point meter includes a dew point meter body 2 placed inside a carrying case 1. The carrying case 1 is equipped with a buffer protection mechanism 3 that provides double protection for the dew point meter body 2, and a fixing protection mechanism 4 that prevents the dew point meter body 2 from shaking and impacting the inner wall of the carrying case 1, thus avoiding damage. By placing the dew point meter body 2 inside the carrying case 1, it can be carried by lifting the handle of the carrying case 1, making it more portable. The buffer protection mechanism 3 absorbs and buffers the impact force generated by the carrying case 1 falling to the ground, thereby preventing damage to the dew point meter body 2. The fixing protection mechanism 4, together with the dew point meter body 2, secures it inside the carrying case 1, further protecting the dew point meter body 2.

[0032] Because existing technology lacks a corresponding protective buffer mechanism, precision dew point meters are easily damaged by impacts. Therefore, this device is equipped with a buffer protection mechanism 3, which includes a placement plate 31 installed inside the portable case 1. Buffer sleeves 32 are installed at the four corners of the bottom of the portable case 1, and buffer springs 33 are installed inside the buffer sleeves 32. A sliding rod 34 is installed on the top of the buffer spring 33 and is slidably connected to the inner wall of the buffer sleeve 32. The top of the sliding rod 34 is connected to the placement plate 31. The buffer sleeve 32 is equipped with a reinforced buffer component 35 to prevent the buffer spring 33 from rebounding too quickly and causing damage to the dew point meter body 2. When the portable case 1 is accidentally dropped, the impact force causes the dew point meter body 2 on the placement plate 31 to push the placement plate 31 down and push the sliding rod 34 to slide towards the bottom of the buffer sleeve 32 and squeeze the buffer spring 33. The elasticity of the buffer spring 33 absorbs and releases the impact force, thereby better protecting the dew point meter body 2.

[0033] Since different precision dew point meters have different specifications, in order to accommodate different sizes of fixed protective mechanisms 4, the device is also equipped with a fixed protective mechanism 4. The fixed protective mechanism 4 includes a bidirectional motor 41 installed at the bottom of the placement plate 31, and both output ends of the bidirectional motor 41 are connected to lead screws 42. The lead screws 42 are threadedly connected to threaded sliders 43 that slide left and right on the inner wall of the guide groove opened on the placement plate 31. A fixing plate 44 is installed on the top of the threaded sliders 43. The fixing plate 44 is equipped with a limiting component 45 that limits the dew point meter body 2 from the top. When the dew point meter body 2 is placed on the placement plate 31, the bidirectional motor 41 is started to drive the lead screws 42 to rotate, which in turn drives the threaded sliders 43 on the lead screws 42 to slide relative to each other along the guide groove, which in turn drives the two fixing plates 44 to clamp and fix the dew point meter body 2 on the placement plate 31, thereby preventing the dew point meter body 2 from shaking in the portable case 1 and causing damage to the dew point meter body 2.

[0034] To further limit and fix the dew point meter body 2, the device is also equipped with a limiting component 45. The limiting component 45 includes tension springs 451 arrayed and installed in a slide groove on the fixing plate 44. An L-shaped sliding plate 452 is installed on the top of the tension springs 451 and is slidably connected to the inner wall of the slide groove. Pulling the L-shaped sliding plate 452 causes the tension springs 451 to stretch until the L-shaped sliding plate 452 is higher than the top of the dew point meter body 2. Then, the L-shaped sliding plate 452 is released, and the tension springs 451 return to their original position under their own elasticity, thereby fixing the dew point meter body 2 from the top and improving the stability of the dew point meter body 2.

[0035] To prevent damage to the dew point meter body 2 caused by excessive clamping by the fixing plate 44, a pressure sensor 46 is installed in the mounting slot on the fixing plate 44. When the two fixing plates 44 clamp and fix the dew point meter body 2, the pressure sensor 46 receives pressure and sends an electrical signal to the bidirectional motor 41, causing it to stop running. This prevents damage to the dew point meter body 2 caused by excessive clamping. Rubber pads are installed on the placement plate 31, the fixing plate 44, and the L-shaped sliding plate 452. The rubber pads provide a certain cushioning effect and prevent the plates from scratching the dew point meter body 2.

[0036] Example 2

[0037] To further enhance the cushioning effect against the impact of falling to the ground, and to prevent the buffer spring 33 from rebounding and causing the dew point meter body 2 to vibrate up and down, thus preventing secondary damage, therefore, based on Embodiment 1, as follows: Figures 1-5 As shown, the device is also equipped with a reinforced buffer assembly 35, which includes a magnetorheological fluid injected into the buffer sleeve 32. A return pipe 351 is installed on the bottom side of the buffer sleeve 32, and a rubber membrane 352 is installed on the top of the return pipe 351. Electrical contacts 353 are installed on both the rubber membrane 352 and the top wall of the return pipe 351. An electromagnetic ring 354 is installed in the installation chamber opened on the buffer sleeve 32.

[0038] Electrical contacts 353 are electrically connected to electromagnetic ring 354, and there is a certain gap between the two electrical contacts 353. When the slide rod 34 moves down, it squeezes the magnetorheological fluid in the buffer sleeve 32 into the return pipe 351. If the impact force is too large, the magnetorheological fluid flowing into the return pipe 351 will push up the rubber diaphragm 352, causing the two electrical contacts 353 to contact and send an electrical signal to the electromagnetic ring 354. At this time, the built-in battery will energize the electromagnetic ring 354 and generate a magnetic field, thereby converting the remaining magnetorheological fluid in the buffer sleeve 32 into low-flow Bingham fluid, thus buffering the impact force and limiting the compressed buffer spring 33 to prevent the buffer spring 33 from rebounding quickly and causing secondary damage to the dew point meter body 2.

[0039] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable precision dew point meter, comprising a dew point meter body (2) placed inside a carrying case (1), characterized in that: The portable case (1) is equipped with a buffer protection mechanism (3) that provides double protection for the dew point meter body (2), and the portable case (1) is equipped with a fixing protection mechanism (4) to prevent the dew point meter body (2) from shaking and hitting the inner wall of the portable case (1) and causing damage. The buffer protection mechanism (3) includes a placement plate (31) installed in the portable case (1). The four corners of the bottom of the portable case (1) are equipped with buffer sleeves (32), and a buffer spring (33) is installed inside the buffer sleeve (32). A slide rod (34) is installed on the top of the buffer spring (33) and is slidably connected to the inner wall of the buffer sleeve (32). The top of the slide rod (34) is connected to the placement plate (31). The buffer sleeve (32) is provided with a reinforced buffer component (35) to prevent the buffer spring (33) from rebounding rapidly and causing damage to the dew point meter body (2).

2. A portable precision dew point meter according to claim 1, characterized in that: The reinforced buffer assembly (35) includes a magnetorheological fluid injected into the buffer sleeve (32), and a return pipe (351) is installed on the bottom side of the buffer sleeve (32). A rubber membrane (352) is installed on the top of the return pipe (351), and electrical contacts (353) are installed on both the rubber membrane (352) and the top wall of the return pipe (351). An electromagnetic ring (354) is installed in the installation chamber opened on the buffer sleeve (32).

3. A portable precision dew point meter according to claim 2, characterized in that: The electrical contact (353) is electrically connected to the electromagnetic ring (354), and there is a certain distance between the two electrical contacts (353).

4. A portable precision dew point meter according to claim 1, characterized in that: The fixed protection mechanism (4) includes a bidirectional motor (41) installed at the bottom of the placement plate (31), and both output ends of the bidirectional motor (41) are connected to lead screws (42). The lead screws (42) are threadedly connected to a threaded slider (43) that slides left and right on the inner wall of the guide groove opened on the placement plate (31). A fixing plate (44) is installed on the top of the threaded slider (43), and a limiting component (45) is provided on the fixing plate (44) to limit the movement of the dew point meter body (2) from the top.

5. A portable precision dew point meter according to claim 4, characterized in that: The limiting component (45) includes a tension spring (451) arrayed in a groove opened on the fixed plate (44), and an L-shaped sliding plate (452) is mounted on the top of the tension spring (451) and is slidably connected to the inner wall of the groove.

6. A portable precision dew point meter according to claim 5, characterized in that: A pressure sensor (46) is installed in the mounting groove on the fixing plate (44), and rubber pads are installed on the placement plate (31), the fixing plate (44) and the L-shaped sliding plate (452).

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