Detection equipment for thermal instrument

Abstract

The utility model relates to the technical field of thermotechnical instrument detection, in particular to detection equipment for a thermotechnical instrument. The detection equipment of the thermal instrument comprises a bottom support frame, a detection instrument and a bearing frame, the detection instrument is arranged on the bottom support frame, the detection instrument is provided with a data line exposed out of the surface of the detection instrument, the end part of the data line is provided with transmission interfaces which are connected in parallel, and the transmission interfaces are connected with the bearing frame. The bearing frame is rotatably installed in the bottom supporting frame and can rotate to the outer side of the bottom supporting frame or retract into the bottom supporting frame, and the thermotechnical pressure instrument is detachably installed in the bearing frame and provided with a port matched with and connected with the transmission interface in an inserted mode. The bearing frame has the advantages that the structural design is reasonable, the problem that interfaces are not matched when a pressure thermal instrument is connected with a detector in the prior art is solved, and meanwhile, the bearing frame facilitates installation of the matched thermal pressure instrument and is convenient to store.

Description

Technical Field

[0001] This utility model relates to the field of thermal instrument testing technology, and in particular to a testing device for thermal instruments. Background Technology

[0002] Thermal instruments refer to functional instruments used in thermal-hydraulic testing equipment. They are used to measure and control thermal parameters in the system, such as temperature, pressure, and flow rate. They are mainly used in energy, chemical, metallurgical, and pharmaceutical industries to ensure the stability of industrial production processes and product quality. Thermal instruments can be divided into various types according to different measurement parameters and application areas, such as thermometers, pressure gauges, and flow meters. They typically consist of basic components such as sensors, transducers (or transmitters), transmission channels, and display devices. Pressure instruments include pressure gauges, pressure measuring instruments, and pressure transmitters, used to measure the pressure of gases or liquids.

[0003] To ensure the accuracy and reliability of thermal instruments, they need to be calibrated and maintained regularly. When testing and calibrating pressure instruments, a pressure calibrator is usually used. During the testing process, the signal line of the pressure calibrator is connected to the signal input terminal of the pressure thermal instrument. However, existing thermal pressure instruments have multiple interfaces, which may lead to interface incompatibility when connecting with the pressure calibrator, thus affecting the testing of the pressure thermal instrument.

[0004] Therefore, it is necessary to develop a testing device for thermal instruments to overcome the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a testing device for thermal instruments, which effectively overcomes the defects of the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A testing device for thermal instruments includes a bottom support frame, a testing instrument, and a support frame. The testing instrument is mounted on the bottom support frame and has a data cable exposed on its surface. The end of the data cable has a parallel transmission interface. The support frame is rotatably mounted in the bottom support frame and can be rotated to the outside of the bottom support frame or retracted into the bottom support frame. The thermal pressure instrument is detachably mounted in the support frame and has a port that is adapted to and plugged into the transmission interface.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the aforementioned transmission interfaces include quick-connect internal connectors, threaded connectors, and USB connectors.

[0010] Furthermore, the surface of the aforementioned testing instrument is provided with grooves for correspondingly fitting the aforementioned transmission interface and data cable.

[0011] Furthermore, the aforementioned bottom support frame includes a base plate and two connecting plates. The two connecting plates are both vertically arranged and fixed at both ends of the upper part of the base plate in parallel intervals. The aforementioned testing instrument is arranged between the two connecting plates, and its two ends are respectively rotatably connected to the upper ends of the two connecting plates through pins.

[0012] Furthermore, the lower end of the aforementioned base plate is provided with multiple anti-slip support pads at intervals.

[0013] Furthermore, the aforementioned support frame includes a rotating arm and a frame. The rotating arm is horizontally arranged, with one end rotatably mounted on the upper end of the base plate via a rotating shaft vertically connected thereto. The frame is assembled to the other end of the rotating arm, and the thermal pressure instrument is detachably mounted in the frame.

[0014] Furthermore, the aforementioned rotating arm is a long straight component, and the other end of the aforementioned rotating arm is provided with a plurality of positioning holes spaced apart along its length direction. The bottom wall of the aforementioned frame is provided with an insertion hole extending to one end there. One end of the aforementioned frame is provided with a limiting ring, and the other end of the aforementioned rotating arm is inserted into the aforementioned insertion hole and fixed by a pin that passes through the aforementioned limiting ring and any one of the aforementioned positioning holes.

[0015] Furthermore, the other end of the aforementioned rotating arm is provided with the aforementioned limiting rings at the positions above and below the aforementioned insertion hole.

[0016] Furthermore, a notch is provided at the upper part of one end of the frame, and a bent portion is provided at the upper part of the pin for inserting into the notch.

[0017] Furthermore, the aforementioned rotating arm is a cuboid plate, the aforementioned positioning hole is a rectangular hole extending along the width direction of the aforementioned rotating arm, and the aforementioned pin is a plate.

[0018] The beneficial effects of this utility model are: the structural design is reasonable, which solves the problem of interface mismatch when connecting pressure and thermal instruments and detectors in the prior art. At the same time, the supporting frame facilitates the installation of matching thermal and pressure instruments and is easy to store. Attached Figure Description

[0019] Figure 1 This is a diagram showing the usage status of the testing equipment for the thermal instruments of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the thermal instrument testing equipment of this utility model, in which the supporting frame is rotated and stored in the bottom support frame;

[0021] Figure 3This is a schematic diagram of the structure of the testing equipment for thermal instruments of this utility model without the supporting frame;

[0022] Figure 4 This is a schematic diagram of the supporting frame in the testing equipment of the thermal instrument of this utility model;

[0023] Figure 5 This is an exploded view of the supporting frame in the testing equipment of the thermal instrument of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Bottom support frame; 2. Testing instrument; 3. Bearing frame; 4. Thermal pressure gauge; 11. Base plate; 12. Connecting plate; 13. Anti-slip support pad; 21. Data cable; 22. Transmission interface; 31. Rotating arm; 32. Frame; 33. Pin; 311. Positioning hole; 321. Limiting ring; 331. Bending part. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] Example: Figure 1 , 2 As shown in Figure 3, the testing equipment for thermal instruments in this embodiment includes a bottom support frame 1, a testing instrument 2, and a support frame 3. The testing instrument 2 is mounted on the bottom support frame 1 and has a data line 21 exposed on its surface. The end of the data line 21 has a parallel transmission interface 22. The support frame 3 is rotatably mounted in the bottom support frame 1 and can be rotated to the outside of the bottom support frame 1 or retracted into the bottom support frame 1. The thermal pressure instrument 4 is detachably mounted in the support frame 3 and has a port that is adapted to and plugged into the transmission interface 22.

[0028] In this embodiment of the thermal instrument testing equipment, the testing instrument 2 is a prior art product (not described in detail here). It differs from existing products in its overall shape and the design of the data cable 21. Existing testing instruments 2 have circular plug-in ports on their surfaces, connecting to the interface on the thermal pressure instrument 4 via matching data cables (signal cables). Because the interface models on the thermal pressure instrument 4 are different, existing testing instruments 2 can only be used with one corresponding model of thermal pressure instrument 4. This technical solution, by setting a data cable 21 on the testing body, with multiple types of transmission interfaces 22 connected to its ends, can be used with different models of thermal pressure instruments, improving the applicability and flexibility of the monitoring body for testing thermal pressure instruments. Simultaneously, the entire device is equipped with a support frame 3 for supporting the thermal pressure instrument 4. When in use, the support frame 3 rotates out to stably support the thermal pressure instrument 4; when not in use, the support frame 3 rotates back into the bottom support frame 1 for safekeeping, facilitating overall portability and convenient use.

[0029] In this embodiment, the calibration principle of the testing instrument 2 is mainly based on the standard comparison method. During the test, the testing instrument 2 can simulate pressure values ​​of different ranges and rates of change, and detect whether the output signal of the thermal pressure instrument under test is correct. By comparing the difference between the output signal of the sensor under test and the output signal of the standard sensor, the accuracy and stability of the thermal pressure instrument 4 can be determined, thereby realizing the detection of the thermal pressure instrument 4.

[0030] In this embodiment, the transmission interface 22 includes a quick-connect internal socket, a threaded interface, and a USB interface, enabling it to connect to various models of thermal pressure instruments 4.

[0031] In a preferred embodiment, the surface of the above-mentioned testing instrument 2 is provided with grooves (represented by b in the figure) for correspondingly fitting the above-mentioned transmission interface 22 and data cable 21.

[0032] In the above implementation scheme, the data cable 21 and the transmission interface 22 can be embedded in the corresponding grooves, so that they can be stored and hidden after the test is completed, making them more convenient to carry.

[0033] In a preferred embodiment, the bottom support frame 1 includes a base plate 11 and two connecting plates 12. The two connecting plates 12 are both vertically arranged and fixed at both ends of the upper part of the base plate 11 in parallel intervals. The detection instrument 2 is arranged between the two connecting plates 12, and its two ends are respectively rotatably connected to the upper ends of the two connecting plates 12 by pins.

[0034] In the above implementation scheme, the bottom support frame 1 has a simple structural design. The testing instrument 2 can be rotated to a vertical position when in use (its front is equipped with a display screen d and a control switch). When not in use, it can be rotated to a horizontal position so that the display screen faces downwards, which provides a certain degree of protection. At the same time, the height is also reduced, making it easier to carry.

[0035] In this embodiment, the lower end of the base plate 11 is provided with multiple anti-slip support pads 13 at intervals, making the entire device more stable when placed on a table or other carrier. Generally, the anti-slip support pads 13 are made of rubber.

[0036] In this embodiment, a heat dissipation hole is provided on the top (vertical state) of the detection instrument 2, which is more conducive to heat dissipation of the electrical components inside the detection instrument 2 and avoids the situation of excessive temperature.

[0037] As a preferred implementation method, such as Figure 4 and 5 As shown, the above-mentioned supporting frame 3 includes a rotating arm 31 and a frame 32. The rotating arm 31 is horizontally arranged, and one end of it is rotatably mounted on the upper end of the base plate 11 through a rotating shaft (a in the figure) that is vertically connected to it. The frame 32 is assembled on the other end of the rotating arm 31, and the thermal pressure instrument 4 is detachably mounted in the frame 32.

[0038] In the above implementation scheme, by rotating the rotating arm 31, the frame 32 can be rotated into the bottom support frame 1 and located below the detection instrument 2, so as to achieve hidden storage. Conversely, the rotating arm 31 can be rotated until the frame 32 is exposed outside the bottom support frame 1.

[0039] In this embodiment, a support foot is also provided at the lower end of the frame 32.

[0040] In this embodiment, a foam layer is attached to the bottom wall inside the frame 32. The foam layer has a certain elasticity. The thermal pressure instrument 4 is placed in the groove of the frame 32. The bottom of the thermal pressure instrument 4 is attached to the foam layer, which improves the stability of the thermal pressure instrument 4.

[0041] In a preferred embodiment, the rotating arm 31 is a long straight component. The other end of the rotating arm 31 is provided with a plurality of positioning holes 311 spaced apart along its length. The bottom wall of the frame 32 is provided with an insertion hole extending to one end. One end of the frame 32 is provided with a limiting ring 321. The other end of the rotating arm 31 is inserted into the insertion hole and fixed by a pin 33 that passes through the limiting ring 321 and any one of the positioning holes 311.

[0042] In the above implementation scheme, the design allows the frame 32 and the rotating arm 31 to be detachably assembled, and the position of the frame 32 at the other end of the rotating arm 31 can be adjusted. By inserting the other end of the rotating arm 31 into the slot of the frame 32 at different depths, and with the locking of the pin 33 and the limiting ring 321, the distance between the frame 32 and the side of the bottom support frame 1 can be adjusted after the rotating arm 31 rotates out of the bottom support frame 1, so that its position is adapted to the testing instrument 2, which is conducive to the subsequent connection of the data cable 21.

[0043] In this embodiment, the other end of the rotating arm 31 is provided with the limiting rings 321 above and below the insertion hole. The limiting rings 321 above and below can restrict the position of the frame 32 at the other end of the rotating arm 31 to a certain extent. Specifically, after assembly, the limiting rings 321 above and below abut against the other end of the rotating arm 31 to prevent the frame 32 from tilting.

[0044] In this embodiment, a notch (represented by e in the figure) is provided at the upper part of one end of the frame 32, and a bent portion 331 for embedding into the notch is provided at the upper part of the pin 33. The design of the bent portion 331 prevents the pin 33 from being inserted too deeply and falling off during insertion. After being inserted into place, the bent portion 331 presses against the bottom wall of the notch, preventing the pin 33 from moving downward.

[0045] In this embodiment, the rotating arm 31 is a cuboid plate, the positioning hole 311 is a rectangular hole extending along the width direction of the rotating arm 31, and the pin 33 is a plate. The pin 33 and the positioning hole 311 are the same size and shape, and the two fit tightly together to avoid relative wobbling after insertion.

[0046] In this embodiment, the thermal pressure instrument 4 is designed with a double-layered shell, with the inner layer made of aluminum to effectively isolate electromagnetic interference and the outer layer made of 304 stainless steel to effectively prevent corrosion and extend the service life of the thermal pressure instrument 4.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A testing device for thermal instruments, characterized in that: The instrument includes a bottom support frame (1), a testing instrument (2), and a support frame (3). The testing instrument (2) is mounted on the bottom support frame (1). The testing instrument (2) has a data line (21) exposed on its surface. The end of the data line (21) has a parallel transmission interface (22). The support frame (3) is rotatably mounted in the bottom support frame (1) and can be rotated to the outside of the bottom support frame (1) or retracted into the bottom support frame (1). The thermal pressure instrument (4) is detachably mounted in the support frame (3) and has a port that is adapted to and plugged into the transmission interface (22).

2. The testing equipment for thermal instruments according to claim 1, characterized in that: The transmission interface (22) includes a quick-connect socket, a threaded interface, and a USB interface.

3. The testing equipment for thermal instruments according to claim 2, characterized in that: The surface of the testing instrument (2) is provided with grooves for correspondingly fitting the transmission interface (22) and the data line (21).

4. The testing equipment for thermal instruments according to claim 1, characterized in that: The bottom support frame (1) includes a base plate (11) and two connecting plates (12). The two connecting plates (12) are both vertically arranged and fixed at both ends of the upper part of the base plate (11) in parallel intervals. The detection instrument (2) is arranged between the two connecting plates (12), and its two ends are rotatably connected to the upper ends of the two connecting plates (12) respectively by pins.

5. The testing equipment for thermal instruments according to claim 4, characterized in that: The bottom end of the base plate (11) is provided with a plurality of anti-slip support pads (13) spaced apart.

6. The testing equipment for thermal instruments according to claim 4, characterized in that: The supporting frame (3) includes a rotating arm (31) and a frame (32). The rotating arm (31) is horizontally arranged, and one end of it is rotatably mounted on the upper end of the base plate (11) through a rotating shaft that is vertically connected to it. The frame (32) is assembled on the other end of the rotating arm (31), and the thermal pressure instrument (4) is detachably mounted in the frame (32).

7. The testing equipment for thermal instruments according to claim 6, characterized in that: The rotating arm (31) is a long straight component. The other end of the rotating arm (31) is provided with a plurality of positioning holes (311) spaced apart along its length. The bottom wall of the frame (32) is provided with an insertion hole extending to one end. One end of the frame (32) is provided with a limiting ring (321). The other end of the rotating arm (31) is inserted into the insertion hole and fixed by a pin (33) that passes through the limiting ring (321) and any one of the positioning holes (311).

8. The testing equipment for thermal instruments according to claim 7, characterized in that: The other end of the rotating arm (31) is provided with a limiting ring (321) corresponding to the position above and below the insertion hole.

9. The testing equipment for thermal instruments according to claim 8, characterized in that: The frame (32) has a notch at one end of its upper part, and the pin (33) has a bent part (331) at its upper part for inserting into the notch.

10. A testing device for thermal instruments according to claim 7, characterized in that: The rotating arm (31) is a rectangular plate, the positioning hole (311) is a rectangular hole extending along the width direction of the rotating arm (31), and the pin (33) is a plate.

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