Anti-freezing structure of pressure detection instrument

Abstract

The utility model discloses an anti-freezing structure of a pressure detection instrument, which comprises a heat preservation box connected to the outer side of the pressure detection instrument, a box door hinged to the heat preservation box, a transparent visual window connected to the box door, a support connected to the bottom of the heat preservation box, and a limiting seat arranged on the inner wall of the heat preservation box and used for clamping the pressure detection instrument in a matched mode. The heat preservation box is connected with a sealing rubber cylinder through a penetrating hole formed in the connecting pipeline part of the pressure detection instrument, the top of the inner wall of the heat preservation box is connected with a temperature detector, heating plates are connected to three sides of the inner wall of the heat preservation box, and a drying agent containing box provided with a plurality of through holes is connected to the inner wall of the heat preservation box. The inner threaded cylinder is in threaded connection with a matched outer threaded cylinder, the outer threaded cylinder is hollow, air holes are formed in one side of the outer threaded cylinder, and the outer wall and the inner wall of the heat preservation box are connected with a waterproof heat preservation material layer and a miscellaneous felt material layer respectively.

Description

Technical Field

[0001] This utility model belongs to the technical field of pressure detection instruments, specifically relating to an antifreeze structure for pressure detection instruments. Background Technology

[0002] Pressure measuring instruments located outdoors must be protected against freezing. In winter, when the temperature is low, the instruments can easily freeze, affecting their normal operation, increasing measurement errors, and in severe cases, potentially causing poisoning, fire, explosion, or other safety accidents.

[0003] In the existing technology, the antifreeze measures for pressure measuring instruments generally require staff to patrol and inspect repeatedly, and then heat and insulate the pressure measuring instruments in a timely manner. This method is not only time-consuming and labor-intensive, but also relatively expensive. It is also difficult for staff to work in hot weather. Therefore, there is a need to set up an antifreeze structure for pressure measuring instruments. Utility Model Content

[0004] In view of the problems mentioned above in the background art, the purpose of this utility model is to provide an antifreeze structure for a pressure detection instrument.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] An antifreeze structure for a pressure measuring instrument includes an insulated box connected to the outside of the pressure measuring instrument. The insulated box has a hinged door with a transparent viewing window. A bracket is connected to the bottom of the insulated box. A limiting seat for fitting and engaging the pressure measuring instrument is provided on the inner wall of the insulated box. A sealing rubber cylinder is perforated and connected to the connecting pipeline of the pressure measuring instrument. A thermometer is connected to the top of the inner wall of the insulated box. Heating plates are connected to three sides of the inner wall of the insulated box. A desiccant box with multiple through holes is connected to the inner wall of the insulated box. An internally threaded cylinder is connected to one side of the insulated box. A matching externally threaded cylinder is threadedly connected to the internally threaded cylinder. The externally threaded cylinder is hollow and has a vent hole on one side.

[0007] The outer and inner walls of the insulated box are respectively connected to a waterproof and heat-insulating material layer and a layer of mixed felt material.

[0008] Furthermore, the top of the insulated box is umbrella-shaped, and the top shape of the waterproof insulation material layer and the felt material layer is consistent with the top shape of the insulated box. This structural design can prevent water from accumulating on the top of the insulated box.

[0009] Further specifying, the limiting seat includes connecting rods connected to both sides of the inner wall of the insulation box, with arc-shaped limiting plates connected to the ends of the connecting rods. The pressure detection instrument is snapped between the two arc-shaped limiting plates, and a rubber pad is adhered to the inner wall of the arc-shaped limiting plate. This structural design can easily snap the pressure detection instrument into the inside of the insulation box, improve the installation stability of the pressure detection instrument, and also prevent damage to the outer wall of the pressure detection instrument.

[0010] Further defined, the external threaded cylinder includes a front end cylinder and a rear end cylinder. The outer wall of the front end cylinder shaft is provided with an external thread adapted to connect to the internal threaded cylinder. The outer wall of the rear end cylinder shaft is set in a smooth round rod shape. The vent hole is located on one side of the rear end cylinder. This structural design can prevent the smoothness and sealing of the connection between the external threaded cylinder and the internal threaded cylinder from being affected.

[0011] Furthermore, the end of the external threaded cylinder is connected to a disc, and a semi-circular handle and a sealing ring are respectively connected to both sides of the disc. The waterproof and heat-insulating material layer is provided with an annular sealing groove adapted to embed the sealing ring. This structural design can improve the ease of operation of the external threaded cylinder and increase the connection and sealing between the end of the external threaded cylinder and the waterproof and heat-insulating material layer.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model includes an insulated box installed outside the pressure measuring instrument. The insulated box is connected to a door, a thermometer, a heating plate, a desiccant box, a limiting seat, a waterproof and heat-insulating material layer, and a felt material layer. The waterproof and heat-insulating material layer and the felt material layer can prevent external water mist from adhering to the outer wall of the insulated box and thus preventing heat loss from the insulated box. The components work together to achieve automatic heating, heat preservation, and antifreeze effect for the pressure measuring instrument inside the insulated box. It eliminates the need for staff to manually heat and insulate each pressure measuring instrument individually, saving time and effort and reducing the workload of staff.

[0014] 2. The inner and outer threaded cylinders work together to release heat and cool down briefly through the vent holes. This allows staff to easily check the pressure testing instruments and defog through the transparent viewing window of the chamber door, preventing excessive heat loss from the inside of the insulated chamber and achieving an auxiliary antifreeze effect. The desiccant inside the desiccant box can dry and dehumidify the inside of the insulated chamber. Attached Figure Description

[0015] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of an embodiment of the antifreeze structure of a pressure detection instrument according to the present invention;

[0017] Figure 2This is an embodiment of the antifreeze structure of a pressure detection instrument according to the present invention. Figure 1 The structural diagram at point A is shown in the image.

[0018] Figure 3 This is an embodiment of the antifreeze structure of a pressure detection instrument according to the present invention. Figure 1 The structural diagram at point B is shown in the image.

[0019] Figure 4 This is a schematic diagram of the structure of the cabinet door in an embodiment of the antifreeze structure of a pressure detection instrument according to this utility model;

[0020] Figure 5 This is a schematic diagram of the external threaded cylinder in an embodiment of the antifreeze structure of a pressure testing instrument according to this utility model.

[0021] The symbols for the main components are explained below:

[0022] Pressure measuring instrument 1;

[0023] 2. Insulated box, 201. Door, 2011. Transparent viewing window, 202. Bracket, 203. Sealing rubber cylinder, 204. Thermometer, 205. Heating plate, 206. Desiccant box, 206. Through hole, 2061.

[0024] Limiting seat 3, connecting rod 301, arc-shaped limiting plate 302, rubber pad 303;

[0025] 4. Internally threaded cylinder;

[0026] 5. External threaded cylinder, 5001 vent hole, 501 front cylinder, 502 rear cylinder, 503 disc, 504 semi-circular handle, 505 sealing ring;

[0027] Waterproof and thermal insulation material layer 6;

[0028] Layer 7 of mixed felt material. Detailed Implementation

[0029] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1-5As shown, the antifreeze structure of a pressure testing instrument of this utility model includes an insulated box 2 connected to the outside of the pressure testing instrument 1. The insulated box 2 is hinged with a door 201, and the door is connected with a transparent viewing window 2011. A bracket 202 is connected to the bottom of the insulated box 2. A limiting seat 3 adapted to snap onto the pressure testing instrument 1 is provided on the inner wall of the insulated box 2. A sealing rubber cylinder 203 is perforated and connected to the connecting pipeline of the pressure testing instrument 1 in the insulated box 2. A thermometer 204 is connected to the top of the inner wall of the insulated box 2. Heating plates 205 are connected to three sides of the inner wall of the insulated box 2. A desiccant placement box 206 with multiple through holes 2061 is connected to the inner wall of the insulated box 2. An internally threaded cylinder 4 is connected to one side of the insulated box 2. The internally threaded cylinder 4 is threadedly connected to a matching externally threaded cylinder 5. The externally threaded cylinder 5 is hollow and has a vent hole 5001 on one side.

[0031] The outer and inner walls of the insulated box 2 are respectively connected to a waterproof and heat-insulating material layer 6 and a layer of mixed felt material 7.

[0032] In this embodiment, when no staff member needs to check the pressure measuring instrument 1, the insulation box 2 and the door 201 are closed. When the ambient temperature drops and the thermometer 204 detects that the internal temperature of the insulation box 2 is lower than a certain standard temperature, a low temperature signal is transmitted to the central controller. The central controller then controls each heating plate 205 to start working. The heating plate 205 heats the air inside the insulation box 2 to a certain standard temperature and then stops working. At this time, the waterproof insulation material layer 6 and the felt material layer 7 have the effect of insulation and preventing heat loss. The waterproof insulation material layer 6 has a waterproof and windproof effect, preventing external water mist from adhering to the outer wall of the insulation box 2 and causing heat exchange to lose heat from the insulation box 2. This achieves the effect of preventing the pressure measuring instrument 1 from freezing. Moreover, staff members do not need to personally insulate and heat each pressure measuring instrument 1 one by one, saving time and effort and reducing the workload of staff.

[0033] In addition, when the temperature difference between the inside of the insulated box 2 and the outside environment is large, the transparent viewing window 2011 of the box door 201 may fog up. When the staff needs to check the pressure measuring instrument 1, they only need to manually rotate the external threaded cylinder 5 so that the vent 5001 on one side of the external threaded cylinder 5 comes into contact with the outside environment air. At this time, there is no need to open the box door 201. The air inside the insulated box 2 will release heat and cool down briefly through the vent 5001, thereby achieving the defogging effect. This makes the transparent viewing window 2011 of the box door 201 visible, which is convenient for the staff to check the pressure measuring instrument 1. At the same time, it can prevent excessive heat loss inside the insulated box 2 and achieve the effect of auxiliary antifreeze. The desiccant inside the desiccant box 206 can dry and dehumidify the inside of the insulated box 2.

[0034] Preferably, the top of the insulated box 2 is umbrella-shaped, and the tops of the waterproof insulation material layer 6 and the felt material layer 7 have the same shape as the top of the insulated box 2. This structural design can prevent water from accumulating on the top of the insulated box 2. In practice, other convenient structural shapes can also be considered depending on the specific circumstances.

[0035] Preferably, the limiting seat 3 includes connecting rods 301 connected to both sides of the inner wall of the insulation box 2. An arc-shaped limiting plate 302 is connected to the end of each connecting rod 301. The pressure measuring instrument 1 is snapped between the two arc-shaped limiting plates 302. A rubber pad 303 is adhered to the inner wall of the arc-shaped limiting plate 302. This structural design facilitates the snapping of the pressure measuring instrument 1 inside the insulation box 2, improving the installation stability of the pressure measuring instrument 1 and preventing damage to the outer wall of the pressure measuring instrument 1. In practice, other structural shapes that can improve installation stability can also be considered depending on the specific circumstances.

[0036] Preferably, the externally threaded cylinder 5 includes a front cylinder 501 and a rear cylinder 502. The outer wall of the shaft of the front cylinder 501 is provided with an external thread adapted to connect to the internally threaded cylinder 4. The outer wall of the shaft of the rear cylinder 502 is a smooth, round rod. A vent hole 5001 is provided on one side of the rear cylinder 502. This structural design can prevent any impact on the smoothness and sealing of the connection between the externally threaded cylinder 5 and the internally threaded cylinder 4. In practice, other structural shapes that can prevent any impact on the connection effect can also be considered depending on the specific circumstances.

[0037] Preferably, the end of the externally threaded cylinder 5 is connected to a disc 503, and a semi-circular handle 504 and a sealing ring 505 are respectively connected to both sides of the disc 503. The waterproof and thermal insulation material layer 6 is provided with an annular sealing groove adapted to embed the sealing ring 505. This structural design can improve the ease of operation of the externally threaded cylinder 5 and increase the connection sealing between the end of the externally threaded cylinder 5 and the waterproof and thermal insulation material layer 6. In practice, other structural shapes that are convenient to use and can increase the connection sealing can also be considered according to specific circumstances.

[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An antifreeze structure for a pressure measuring instrument, comprising an insulated box (2) connected to the outside of the pressure measuring instrument (1), the insulated box (2) being hinged with a door (201), the door being connected with a transparent viewing window (2011), and a bracket (202) connected to the bottom of the insulated box (2), characterized in that: The inner wall of the heat preservation box (2) is provided with a limiting seat (3) adapted to snap-fit ​​pressure detection instrument (1). The heat preservation box (2) is provided with a perforated connection to a sealing rubber cylinder (203) at the connection pipeline of the pressure detection instrument (1). The top of the inner wall of the heat preservation box (2) is connected to a thermometer (204). The three sides of the inner wall of the heat preservation box (2) are connected to heating plates (205). The inner wall of the heat preservation box (2) is connected to a desiccant placement box (206) with multiple through holes (2061). One side of the heat preservation box (2) is connected to an internal threaded cylinder (4). The internal threaded cylinder (4) is threadedly connected to a matching external threaded cylinder (5). The external threaded cylinder (5) is hollow and has a vent hole (5001) on one side. The outer and inner walls of the insulated box (2) are respectively connected to a waterproof and heat-insulating material layer (6) and a layer of mixed felt material (7).

2. The antifreeze structure of a pressure detection instrument according to claim 1, characterized in that: The top of the insulated box (2) is umbrella-shaped, and the top shapes of the waterproof and heat-insulating material layer (6) and the felt material layer (7) are consistent with the top shape of the insulated box (2).

3. The antifreeze structure of a pressure detection instrument according to claim 2, characterized in that: The limiting seat (3) includes connecting rods (301) connected to both sides of the inner wall of the heat preservation box (2). The ends of the connecting rods (301) are connected to arc-shaped limiting plates (302). The pressure detection instrument (1) is snapped between the two arc-shaped limiting plates (302). The inner wall of the arc-shaped limiting plate (302) is adhered with a rubber pad (303).

4. The antifreeze structure of a pressure detection instrument according to claim 3, characterized in that: The external threaded cylinder (5) includes a front cylinder (501) and a rear cylinder (502). The outer wall of the shaft of the front cylinder (501) is provided with an external thread adapted to be connected to the internal threaded cylinder (4). The outer wall of the shaft of the rear cylinder (502) is set in a smooth round rod shape. The vent hole (5001) is set on one side of the rear cylinder (502).

5. The antifreeze structure of a pressure detection instrument according to claim 4, characterized in that: The end of the external threaded cylinder (5) is connected to a disc (503), and a semi-circular handle (504) and a sealing ring (505) are respectively connected to both sides of the disc (503). The waterproof and heat-insulating material layer (6) is provided with an annular sealing groove adapted to embed the sealing ring (505).

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