A constant temperature on-line calibration device for temperature and pressure integrated transducer

Abstract

The utility model relates to the technical fields of transmitter calibration device, especially to a temperature and pressure integrated transmitter constant temperature online calibration device, which can enlarge the limiting range of the baffle, effectively improve the limiting effect of the baffle, avoid the shaking of the baffle when the pushing device moves, and make the baffle cover more stable, comprising a protection box and a limiting mechanism, the inside bottom end of the protection box is slidably installed with a movable plate, the right end of the top of movable plate is fixedly installed with a calibration device body, the right end of movable plate is fixedly connected with a baffle, the right end of the protection box is provided with a sealed sink, the baffle is covered in the sealed sink through the cooperation of the bottom plate and the clamping groove, the right end of the baffle is aligned with the right end of the protection box, the bottom end of the bottom plate is aligned with the bottom end of the protection box, universal wheels are fixedly installed at the four corners of the bottom end of the protection box and the two sides of the bottom end of the bottom plate, the limiting mechanism comprises two groups of J type limiting plates for limiting the baffle.

Description

Technical Field

[0001] This utility model relates to the technical field of transmitter calibration devices, and in particular to a constant temperature online calibration device for an integrated temperature and pressure transmitter. Background Technology

[0002] Transmitters evolved from sensors. Any sensor that can output a standard signal is a signal whose physical quantity and range conform to international standards. Since DC signals have advantages such as being unaffected by inductance, capacitance and load properties in the circuit and not having phase shift problems, the calibration instruments for integrated temperature control transmitters include standard platinum resistance thermometers and their matching electrical measuring instruments, integrated temperature transmitter matching electrical measuring instruments and their power supply modules, and portable constant temperature baths.

[0003] Existing technologies already include testing devices that integrate these instruments. For example, the utility model patent with patent publication number CN220304575U discloses a constant temperature online calibration device for an integrated temperature and pressure transmitter. This device enables a single person to move the calibration device and protects it when it is not in use, preventing dust from entering the interface of the calibration device.

[0004] The temperature and pressure integrated transmitter constant temperature online calibration device in the above patent can protect the calibration device during use, but it still has some drawbacks. After the baffle is covered, the baffle is limited by the limiting frame. However, the limiting frame can only block the lower side of the baffle, so the limiting range of the baffle is small, resulting in poor limiting effect. When the device is pushed to move, it is easy to cause the upper part of the baffle to shake. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a temperature and pressure integrated transmitter constant temperature online calibration device that can expand the limiting range of the baffle, effectively improve the limiting effect of the baffle, avoid causing the baffle to shake when the pushing device moves, and make the baffle cover more stable.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature online calibration device for an integrated temperature and pressure transmitter, comprising a protective box and a limiting mechanism. A movable plate is slidably installed at the bottom of the protective box. The calibration device body is fixedly installed on the right side of the top of the movable plate. A baffle is fixedly connected to the right end of the movable plate. A sealing groove is provided at the right end of the protective box. A base plate is integrally connected to the bottom of the baffle. A slot is provided at the bottom of the protective box, communicating with the bottom of the sealing groove. The baffle is fitted into the sealing groove through the cooperation of the base plate and the slot, with the right end of the baffle aligned with the right end of the protective box, and the bottom end of the base plate aligned with the bottom end of the protective box. Universal wheels are fixedly installed at the four corners of the bottom of the protective box and on both sides of the bottom end of the base plate. The limiting mechanism includes two sets of J-shaped limiting plates, each fixedly connected to a [missing information - likely a device name or function]. The rotating shaft has two sets of rotating shafts, each with a stop post fixedly connected to its left end. The protective box has symmetrically fixed bearings at both ends near the slots. The two sets of rotating shafts are rotatably mounted on the two sets of bearings. The right end of the stop post rests against the left end of the bearing. Two sets of J-shaped limiting plates symmetrically block the right end of the baffle with the cooperation of the stop post and the bearing. The left end of the J-shaped limiting plate is aligned with the right end of the baffle. An H-shaped positioning frame is fixedly connected to the middle of the right side of the top of the protective box. Two sets of positioning pins are slidably inserted into the H-shaped positioning frame. A connecting plate is fixedly connected to the left end of each of the two sets of positioning pins. Springs are fitted onto each of the two sets of positioning pins, with both ends of the springs fixedly connected to the left end of the H-shaped positioning frame and the right end of the connecting plate, respectively. Positioning holes are provided on the top of each of the two sets of J-shaped limiting plates. The tops of the two sets of J-shaped limiting plates are symmetrically engaged with the H-shaped positioning frame through the cooperation of the positioning pins and the positioning holes.

[0008] Preferably, the movable plate is symmetrically provided with two sets of limiting slots, which are distributed on the front and rear sides of the calibration device body. Two sets of limiting posts are symmetrically fixedly connected at the bottom right of the protective box. The movable plate is slidably installed at the bottom of the protective box through the cooperation of the limiting slots and the limiting posts.

[0009] Preferably, a push-pull handle is fixedly connected to the right end of the baffle, and the push-pull handle is located below the two sets of J-shaped limiting plates.

[0010] Preferably, a handrail is fixedly connected to the upper left side of the protective box.

[0011] Preferably, a pull ring is fixedly connected to the left end of the connecting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the calibration device body is located inside the protective box when the device is not in use, and the baffle is covered in the sealing groove. The sealing performance is enhanced by the cooperation between the baffle and the sealing groove. By symmetrically blocking the right end of the baffle with two sets of J-shaped limiting plates, the upper and lower sides of the baffle can be limited, and the limiting range of the baffle is wider, thereby effectively improving the limiting effect of the baffle. When the device is pushed to move, the baffle is prevented from shaking, making the baffle cover more stable. Attached Figure Description

[0013] Figure 1 This is an isometric structural diagram of the present invention when it is not in use;

[0014] Figure 2 This is an isometric structural diagram of the present invention when the calibration device body is pulled out;

[0015] Figure 3 This is a partial isometric structural schematic diagram of this utility model;

[0016] Figure 4 This is a schematic diagram of the isometric structure of the calibration device body in this utility model.

[0017] Figure 5 This is a partial isometric structural diagram of the limiting mechanism in this utility model;

[0018] Figure 6 This is a schematic diagram of the left axonometric structure of the J-shaped limiting plate in this utility model;

[0019] The following are labels in the attached diagram: 1. Protective box; 2. Movable plate; 3. Calibration device body; 4. Baffle; 5. Sealing groove; 6. Base plate; 7. Casters; 8. J-type limiting plate; 9. Rotating shaft; 10. Stop post; 11. Shaft seat; 12. H-type positioning frame; 13. Positioning pin; 14. Connecting plate; 15. Spring; 16. Positioning hole; 17. Limiting groove; 18. Limiting post; 19. Push-pull handle; 20. Handrail; 21. Pull ring. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] Example 1

[0022] Please see Figures 1-6This utility model discloses a constant temperature online calibration device for an integrated temperature and pressure transmitter, comprising a protective box 1 and a limiting mechanism. A movable plate 2 is slidably installed at the bottom of the protective box 1. A calibration device body 3 is fixedly installed on the right side of the top of the movable plate 2. A baffle 4 is fixedly connected to the right end of the movable plate 2. A sealing groove 5 is provided at the right end of the protective box 1. A base plate 6 is integrally connected to the bottom of the baffle 4. A slot is provided at the bottom of the protective box 1, communicating with the bottom of the sealing groove 5. The baffle 4 is fitted into the sealing groove 5 through the cooperation of the base plate 6 and the slot, with the right end of the baffle 4 aligned with the right end of the protective box 1, and the bottom end of the base plate 6 aligned with the bottom end of the protective box 1. Universal wheels 7 are fixedly installed at the four corners of the end plate 6 and on both sides of the bottom end. The limiting mechanism includes two sets of J-shaped limiting plates 8, which are used to limit the baffle 4. When the device is not in use, the calibration device body 3 is inside the protective box 1, and the baffle 4 is covered in the sealing groove 5. The cooperation between the baffle 4 and the sealing groove 5 enhances the sealing performance. By symmetrically blocking the right end of the baffle 4 with two sets of J-shaped limiting plates 8, the upper and lower sides of the baffle 4 can be limited, and the limiting range of the baffle 4 is wider, thereby effectively improving the limiting effect of the baffle. When the device is pushed to move, the baffle is prevented from shaking, making the baffle cover more stable.

[0023] Example 2

[0024] Please see Figures 1-6This utility model discloses a constant temperature online calibration device for an integrated temperature and pressure transmitter, comprising a protective box 1 and two sets of J-type limiting plates 8. A movable plate 2 is slidably installed at the bottom of the protective box 1. The calibration device body 3 is fixedly installed on the right side of the top of the movable plate 2. A baffle 4 is fixedly connected to the right end of the movable plate 2. A sealing groove 5 is provided at the right end of the protective box 1. A base plate 6 is integrally connected to the bottom of the baffle 4. A slot is provided at the bottom of the protective box 1, communicating with the bottom of the sealing groove 5. The baffle 4 is fitted into the sealing groove 5 through the cooperation of the base plate 6 and the slot. The bottom of the base plate 6 is aligned with the right end of the protective box 1. Universal wheels 7 are fixedly installed at the four corners of the bottom of the protective box 1 and on both sides of the bottom of the base plate 6. A rotating shaft 9 is fixedly connected to the lower left side of each of the two sets of J-shaped limiting plates 8. A stop post 10 is fixedly connected to the left end of each of the two sets of rotating shafts 9. Shaft seats 11 are symmetrically fixedly connected at both ends of the protective box 1 near the slots. The two sets of rotating shafts 9 are rotatably mounted on the two sets of shaft seats 11. The right end of the stop post 10 abuts against the left end of the shaft seat 11. The two sets of J-shaped limiting plates 8, under the cooperation of the stop post 10 and the shaft seat 11... Symmetrical baffles are positioned on the right end of baffle 4. The left end of J-shaped limiting plate 8 is aligned with the right end of baffle 4. An H-shaped positioning frame 12 is fixedly connected to the middle of the right side of the top of protective box 1. Two sets of positioning pins 13 are slidably inserted on the H-shaped positioning frame 12. A connecting plate 14 is fixedly connected to the left end of the two sets of positioning pins 13. A spring 15 is fitted on each set of positioning pins 13, and the two ends of the spring 15 are fixedly connected to the left end of the H-shaped positioning frame 12 and the right end of the connecting plate 14, respectively. The top of each set of J-shaped limiting plates 8 is provided with a positioning hole 16. The top of the two sets of J-shaped limiting plates 8 is connected to the positioning plate 14 by the positioning pin 13. The hole 16 is symmetrically fitted onto the H-type positioning frame 12. When in use, the calibration device body 3 is inside the protective box 1 when the device is not in use, and the baffle 4 is covered in the sealing groove 5. The cooperation between the baffle 4 and the sealing groove 5 enhances the sealing performance. Two sets of J-type limiting plates 8 are symmetrically placed on the right end of the baffle 4, which can limit the upper and lower sides of the baffle 4. The limiting range of the baffle 4 is wider, thereby effectively improving the limiting effect of the baffle. When the device is pushed to move, it avoids the baffle from shaking, making the baffle cover more stable.

[0025] The movable plate 2 is symmetrically provided with two sets of limiting slots 17, which are distributed on the front and rear sides of the calibration device body 3. Two sets of limiting posts 18 are symmetrically fixedly connected to the bottom right side of the protective box 1. The movable plate 2 is slidably installed at the bottom of the protective box 1 through the cooperation of the limiting slots 17 and the limiting posts 18. When the movable plate 2 is pulled outward, it is guided and limited by the limiting posts 18 and the limiting slots 17, which ensures that the calibration device body 3 is pulled out while preventing the movable plate 2 from falling out of the protective box 1, thus improving reliability.

[0026] A push-pull handle 19 is fixedly connected to the right end of the baffle 4, and the push-pull handle 19 is located below the two sets of J-shaped limiting plates 8. By setting the push-pull handle 19, when the calibration device body 3 is pulled out, the baffle 4 can be pulled to the right by holding the push-pull handle 19, making the baffle 4 more convenient to push and pull.

[0027] A handrail 20 is fixedly connected to the upper left side of the protective box 1; by setting the handrail 20, it is easy to move the device by holding the handrail 20.

[0028] A pull ring 21 is fixedly connected to the left end of the connecting plate 14; by setting the pull ring 21, it is more convenient to pull the connecting plate 14 to pull the positioning pin 13 out of the positioning hole 16.

[0029] This utility model discloses a constant temperature online calibration device for an integrated temperature and pressure transmitter. Its working principle is as follows: Initially, the baffle 4 covers the sealing groove 5, the top of the J-shaped limiting plate 8 is fitted into the H-shaped positioning frame 12, and the positioning pin 13 is inserted into the positioning hole 16 and passes through the H-shaped positioning frame 12, so that the J-shaped limiting plate 8 is stably positioned at the right end of the baffle 4. When calibration is required using the calibration device body 3, the device is pushed to the appropriate position via the handle 20, and then the connecting plate 14 is pulled to the left via the pull ring 21, causing the positioning pin 13 to be pulled out of the positioning hole 16. After releasing the positioning of the J-type limiting plate 8, rotate the J-type limiting plate 8 to both sides so that the top of the J-type limiting plate 8 rests on the ground, thereby releasing the limiting of the baffle 4. Then, pull the baffle 4 to the right by pushing and pulling the lever 19, so that the baffle 4 drives the movable plate 2 to slide to the right under the guidance of the limiting slot 17 and the limiting post 18, thereby moving the movable plate 2 and the calibration device body 3 out of the protective box 1. After the calibration device body 3 is removed, the transmitter can be calibrated by the calibration device body 3. After calibration, push the lever 19 to release the baffle 4. Pull handle 19 to push baffle 4 to the left, causing baffle 4 to push movable plate 2 and calibration device body 3 into the protective box 1, and to cover the sealing groove 5 with baffle 4. Then lift the J-type limiting plate 8 and rotate it inward. After lifting, pull connecting plate 14 to the left, causing positioning pin 13 to slide to the left side inside H-type positioning frame 12, stretching spring 15. Then rotate J-type limiting plate 8 to vertical, so that the top of J-type limiting plate 8 is inserted into H-type positioning frame 12, aligning positioning hole 16 with positioning pin 13, and then release. The connecting plate 14 allows the positioning pin 13 to pass through the positioning hole 16 and be inserted into the H-shaped positioning frame 12 under the action of the spring 15, so that the J-shaped limiting plate 8 can be stably blocked at the right end of the baffle 4 again. It should be noted that the calibration device body 3 in this utility model is based on a constant temperature online calibration device for an integrated temperature and pressure transmitter with patent publication number CN220304575U, which is a prior art that has been disclosed. This application only cites it here, and the specific structure and working principle have not been changed, so it will not be described in detail here.

[0030] The temperature and pressure integrated transmitter constant temperature online calibration device of this utility model has common mechanical installation, connection or setting methods, and can be implemented as long as it can achieve its beneficial effect; the universal wheel 7 of the temperature and pressure integrated transmitter constant temperature online calibration device of this utility model is purchased from the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A constant temperature online calibration device for an integrated temperature and pressure transmitter, characterized in that, Includes a protective box (1) and a limiting mechanism; The protective box (1) has a movable plate (2) slidably installed at the bottom. The calibration device body (3) is fixedly installed on the right side of the top of the movable plate (2). A baffle (4) is fixedly connected to the right end of the movable plate (2). A sealing groove (5) is provided on the right end of the protective box (1). A base plate (6) is integrally connected to the bottom of the baffle (4). A slot is opened at the bottom end of the protective box (1) and the bottom of the sealing groove (5). The baffle (4) is covered in the sealing groove (5) through the cooperation of the base plate (6) and the slot. The right end of the baffle (4) is aligned with the right end of the protective box (1). The bottom end of the base plate (6) is aligned with the bottom end of the protective box (1). Universal wheels (7) are fixedly installed at the four corners of the bottom end of the protective box (1) and on both sides of the bottom end of the base plate (6). The limiting mechanism includes two sets of J-shaped limiting plates (8) for limiting the baffle (4).

2. The constant temperature online calibration device for an integrated temperature and pressure transmitter as described in claim 1, characterized in that, Both sets of J-type limiting plates (8) are fixedly connected to the lower left side of the two sets of rotating shafts (9). Both sets of rotating shafts (9) are fixedly connected to the left side of the two sets of rotating shafts (9). The protective box (1) is symmetrically fixedly connected to the bearings (11) at the front and rear ends near the slots. The two sets of rotating shafts (9) are rotatably mounted on the two sets of bearings (11). The right end of the bearing (10) abuts against the left end of the bearing (11). The two sets of J-type limiting plates (8) are symmetrically blocked at the right end of the baffle (4) under the cooperation of the bearing (10) and the bearing (11). The left end of the J-type limiting plate (8) is aligned with the right end of the baffle (4). The top of the protective box (1) An H-shaped positioning frame (12) is fixedly connected to the middle of the right side. Two sets of positioning pins (13) are slidably inserted on the H-shaped positioning frame (12). A connecting plate (14) is fixedly connected to the left end of the two sets of positioning pins (13). A spring (15) is fitted on each of the two sets of positioning pins (13), and the two ends of the spring (15) are fixedly connected to the left end of the H-shaped positioning frame (12) and the right end of the connecting plate (14) respectively. The top of the two sets of J-shaped limiting plates (8) is provided with positioning holes (16). The tops of the two sets of J-shaped limiting plates (8) are symmetrically clamped onto the H-shaped positioning frame (12) through the cooperation of the positioning pins (13) and the positioning holes (16).

3. The constant temperature online calibration device for an integrated temperature and pressure transmitter as described in claim 2, characterized in that, Two sets of limiting slots (17) are symmetrically opened on the movable plate (2). The two sets of limiting slots (17) are distributed on the front and rear sides of the calibration device body (3). Two sets of limiting posts (18) are symmetrically fixedly connected at the bottom right of the protective box (1). The movable plate (2) is slidably installed at the bottom of the protective box (1) through the cooperation of the limiting slots (17) and the limiting posts (18).

4. The constant temperature online calibration device for an integrated temperature and pressure transmitter as described in claim 3, characterized in that, The right end of the baffle (4) is fixedly connected to a push-pull handle (19), and the push-pull handle (19) is located below the two sets of J-shaped limiting plates (8).

5. The constant temperature online calibration device for an integrated temperature and pressure transmitter as described in claim 4, characterized in that, A handrail (20) is fixedly connected to the upper left side of the protective box (1).

6. The constant temperature online calibration device for an integrated temperature and pressure transmitter as described in claim 5, characterized in that, A pull ring (21) is fixedly connected to the left end of the connecting plate (14).

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