Temperature and pressure sensor detection device for gas meter

Abstract

The utility model discloses a temperature and pressure sensor detection device for a gas meter, which comprises a box body, the bottom of the inner side of the box body is fixedly connected with a fixed seat, the fixed seat is internally provided with a plurality of second cavities, the fixed seat is internally provided with a slot, one end of the inner side of the slot is fixedly connected with a second spring, and the other end of the inner side of the slot is fixedly connected with a third spring. A positioning block is arranged at the other end of the second spring in a penetrating and inward mode, a temperature and pressure sensor is correspondingly arranged at the inner end of the positioning block, a plurality of guide columns are fixedly connected to the upper end of the fixing base, an air cylinder is fixedly connected to the middle of the upper portion of the box body, and a heating plate is arranged on the inner side of the second cavity. The temperature and pressure sensor can be quickly fixed in the second cavity by arranging a second spring, an open groove and a positioning block, the stability of the temperature and pressure sensor in the detection process is ensured, and meanwhile, the whole detection device can be automatically switched on and off by arranging a fixing frame, a connecting plate, a sliding rod, a sliding block and a first spring; and the practicability and convenience of the device are improved.

Description

Technical Field

[0001] The utility model relates to the field of temperature and pressure sensor detection, in particular to a temperature and pressure sensor detection device for a gas meter. Background Art

[0002] In order to ensure fair and just measurement of the gas used by users, it is necessary to convert the volume measured under working conditions into standard conditions and then settle the volume; this conversion uses two related physical quantities, namely pipeline pressure and pipeline gas temperature. These two physical quantities are generally obtained by selecting an integrated sensor with the accuracy allowed by the gas meter - a temperature and pressure sensor. Gas meter manufacturers place the temperature and pressure sensor inside the gas meter housing, directly contacting the natural gas, collecting data in real time, and converting it into a standard volume to ensure fair measurement. In view of the above reasons, a qualified temperature and pressure sensor is very necessary for fair settlement of trade behavior, and the performance of the temperature and pressure sensor needs to be tested during production.

[0003] The traditional method of detecting temperature and pressure sensors is to use the gas meter integrator to lead out the interface and make it into a detection tooling. However, this tooling is inefficient, and the high and low temperature tests will bring uncertain data due to the harsh test environment, and the detection results are low in accuracy. In addition, it is a very arduous task for gas meter manufacturers to test the temperature and pressure sensors one by one while ensuring the detection efficiency and improving production capacity. Therefore, we proposed a temperature and pressure sensor detection device for gas meters. Utility Model Content

[0004] The utility model aims to provide a temperature and pressure sensor detection device for a gas meter, which solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temperature and pressure sensor detection device for a gas meter includes a box body, a fixing seat is fixedly connected to the inner bottom of the box body, a plurality of second cavities are opened inside the fixing seat, a slot is opened inside the fixing seat, a second spring is fixedly connected to one end of the inner side of the slot, and a positioning block is provided inwardly through the other end of the second spring;

[0006] A temperature and pressure sensor is correspondingly arranged at the inner end of the positioning block, a plurality of guide columns are fixedly connected to the upper end of the fixing seat, a cylinder is fixedly connected to the upper middle part of the box body, and a heating plate is arranged inside the second cavity.

[0007] As a further description of the above technical solution: the extended end of the cylinder passes through the box body and is provided with a movable seat inwardly, a plurality of first cavities are opened below the movable seat, a guide groove is opened inside the movable seat, and the guide column corresponds to the guide groove.

[0008] As a further description of the above technical solution: a fixing frame is fixedly connected to the interior of the first cavity, and a connecting plate is movably connected to the interior of the fixing frame.

[0009] As a further description of the above technical solution: two ends of the inner side of the fixing frame are fixedly connected with sliding rods, and a sliding block is slidably connected to the sliding rods.

[0010] As a further description of the above technical solution: a first spring is sleeved on the slide rod, one end of the first spring is fixedly connected to the slider, one end of the slider is fixedly connected to the connecting plate, and an electrical connector is provided on the inner side of the connecting plate and the fixing frame.

[0011] As a further description of the above technical solution: a refrigerator is arranged at one end of the outer side of the box body, an air supply pipe is arranged above the refrigerator, and the other end of the air supply pipe passes through the movable seat and is provided with an air outlet inwardly.

[0012] As a further description of the above technical solution: a box door is arranged on the outer side of the box body, and a base is fixedly connected to the bottom of the box body.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the temperature and pressure sensor detection device for a gas meter can quickly fix the temperature and pressure sensor inside the second cavity by providing a second spring, a slot and a positioning block, thereby ensuring the stability of the temperature and pressure sensor during the detection process. At the same time, the fixing frame, the connecting plate, the sliding rod, the sliding block and the first spring can realize the automatic switching of the entire detection device, thereby improving the practicability and convenience of the device.

[0015] 2. Compared with the prior art, the temperature and pressure sensor detection device for the gas meter can simulate low-temperature scenes by setting up a refrigerator, a gas pipe and an outlet, while the internal heating plate can simulate high-temperature scenes, thereby improving the detection accuracy of the entire device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the structure of A.

[0020] Figure 3 This utility model Figure 1 Schematic diagram of the structure of B.

[0021] Figure 4 It is a stereogram of the utility model.

[0022] Legend:

[0023] 1. Box body; 2. Guide groove; 3. First cavity; 4. Guide column; 5. Base; 6. Second cavity; 7. Temperature and pressure sensor; 8. Refrigerator; 9. Gas pipe; 10. Cylinder; 11. Fixed bracket; 12. Slider; 13. First spring; 14. Power connector; 15. Connecting plate; 16. Sliding rod; 17. Air outlet; 18. Second spring; 19. Slot; 20. Positioning block; 21. Heating plate; 22. Box door; 23. Fixed seat; 24. Movable seat. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment of a temperature and pressure sensor detection device for a gas meter, comprising a box body 1, a fixing seat 23 is fixedly connected to the inner bottom of the box body 1, a plurality of second cavities 6 are provided inside the fixing seat 23, a slot 19 is provided inside the fixing seat 23, a second spring 18 is fixedly connected to one end of the inner side of the slot 19, a positioning block 20 is provided inwardly through the other end of the second spring 18, and the positioning block 20 can be made elastic under the action of the second spring 18, and the internal temperature and pressure sensor 7 can be fixed and limited under the action of the positioning block 20;

[0026] The inner end of the positioning block 20 is correspondingly provided with a temperature and pressure sensor 7, the upper end of the fixed seat 23 is fixedly connected with a plurality of guide pillars 4, the upper middle part of the box body 1 is fixedly connected with a cylinder 10, and the inner side of the second cavity 6 is provided with a heating plate 21. The movable seat 24 can be driven to correspond to the fixed seat 23 through the cylinder 10, and the guide pillar 4 corresponds to the guide groove 2, thereby realizing the guiding and positioning function;

[0027] The extended end of the cylinder 10 passes through the box body 1 and is provided with a movable seat 24 inwardly. A plurality of first cavities 3 are provided below the movable seat 24. A guide groove 2 is provided inside the movable seat 24. The guide column 4 corresponds to the guide groove 2. The interior of the first cavity 3 is fixedly connected with a fixing frame 11. The interior of the fixing frame 11 is movably connected with a connecting plate 15. The inner ends of the fixing frame 11 are fixedly connected with a slide bar 16. The slide bar 16 is slidably connected with a slider 12. The slide bar 16 is sleeved with a first spring 13. One end of the first spring 13 is fixedly connected with the slider 12. One end of the slider 12 is connected with the connecting plate 15 is fixedly connected, and an electric connector 14 is arranged on the inner side of the connecting plate 15 and the fixing frame 11. Starting the cylinder 10 above can drive the entire movable seat 24 to move downward. At this time, the upper end of the temperature and pressure sensor 7 contacts the connecting plate 15. As the movable seat 24 gradually moves downward, the connecting plate 15 can drive the electric connector 14 to move inward, thereby contacting another electric connector 14 on the inner side. At this time, the movable seat 24 and the fixing seat 23 are sealed and closed with each other. The entire device is powered on for detection operation. Under the action of the first spring 13, the connecting plate 15 can have a reset effect;

[0028] A refrigerator 8 is provided at one end of the outer side of the box body 1, and an air pipe 9 is provided above the refrigerator 8. The other end of the air pipe 9 passes through the movable seat 24 and is provided with an air outlet 17 inwardly. A box door 22 is provided on the outer side of the box body 1, and a base 5 is fixedly connected to the bottom of the box body 1. The refrigerator 8 transports cold air to the air outlet 17 through the air pipe 9, and the air outlet 17 transports the cold air to the two cavities. When the low temperature threshold is reached, the processor controls the electromagnetic switch valve to close, and the performance of the temperature and pressure sensor 7 to be detected in the low temperature environment is detected.

[0029] Working principle: When the device is used, the temperature and pressure sensor 7 is first placed inside the second cavity 6, and the two ends of the temperature and pressure sensor 7 correspond to the positioning block 20. The positioning block 20 can fix and clamp the temperature and pressure sensor 7 under the action of the second spring 18 to ensure its stability during detection. Then, the cylinder 10 above is started to drive the entire movable seat 24 to move downward. At this time, the upper end of the temperature and pressure sensor 7 contacts the connecting plate 15. As the movable seat 24 gradually moves downward, the connecting plate 15 can drive the power connector 14 to move inward, thereby contacting another power connector 14 on the inside, and At this time, the movable seat 24 and the fixed seat 23 are sealed and closed with each other, and the entire device is powered on for detection operations. The refrigerator 8 delivers cold air to the air outlet 17 through the air pipe 9, and the air outlet 17 delivers cold air to the two cavities. When the low temperature threshold is reached, the processor controls the electromagnetic switch valve to close, and the performance of the temperature and pressure sensor 7 to be detected in the low temperature environment is detected. When simulating a high temperature environment, the inside of the cavity is heated by the heating plate 21. When the high temperature threshold is reached, the processor controls the heating plate to operate, and detects the performance of the temperature and pressure sensor 7 to be detected in the high temperature environment, thereby completing the detection operation of the entire device.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A temperature and pressure sensor detection device for a gas meter, comprising a housing (1), characterized in that: A fixing seat (23) is fixedly connected to the bottom of the inner side of the box body (1), a plurality of second cavities (6) are provided inside the fixing seat (23), a slot (19) is provided inside the fixing seat (23), a second spring (18) is fixedly connected to one end of the inner side of the slot (19), and a positioning block (20) is provided inwardly through the other end of the second spring (18); A temperature and pressure sensor (7) is correspondingly arranged at the inner end of the positioning block (20), a plurality of guide columns (4) are fixedly connected to the upper end of the fixing seat (23), a cylinder (10) is fixedly connected to the upper middle portion of the box body (1), and a heating plate (21) is arranged on the inner side of the second cavity (6).

2. The temperature and pressure sensor detection device for a gas meter according to claim 1, characterized in that: The extended end of the cylinder (10) passes through the box body (1) and is provided with a movable seat (24) inwardly, a plurality of first cavities (3) are provided below the movable seat (24), a guide groove (2) is provided inside the movable seat (24), and the guide column (4) corresponds to the guide groove (2).

3. The temperature and pressure sensor detection device for a gas meter according to claim 2, characterized in that: A fixing frame (11) is fixedly connected to the interior of the first cavity (3), and a connecting plate (15) is movably connected to the interior of the fixing frame (11).

4. The temperature and pressure sensor detection device for a gas meter according to claim 3, characterized in that: The two ends of the inner side of the fixing frame (11) are fixedly connected with sliding rods (16), and the sliding rods (16) are slidably connected with sliding blocks (12).

5. The temperature and pressure sensor detection device for a gas meter according to claim 4, characterized in that: A first spring (13) is sleeved on the slide bar (16), one end of the first spring (13) is fixedly connected to the slide block (12), one end of the slide block (12) is fixedly connected to the connecting plate (15), and an electrical connector (14) is provided on the inner side of the connecting plate (15) and the fixing frame (11).

6. The temperature and pressure sensor detection device for a gas meter according to claim 1, characterized in that: A refrigerator (8) is arranged at one end of the outer side of the box body (1), an air supply pipe (9) is arranged above the refrigerator (8), and the other end of the air supply pipe (9) passes through the movable seat (24) and is provided with an air outlet (17) inwardly.

7. The temperature and pressure sensor detection device for a gas meter according to claim 1, characterized in that: A box door (22) is arranged on the outside of the box body (1), and a base (5) is fixedly connected to the bottom of the box body (1).

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