Radioactive source liquid level meter switching device

Abstract

The utility model belongs to the technical field of liquid level meters, and particularly relates to a radioactive source liquid level meter switching device which comprises a shell and a slidable lead block arranged in the shell, a radioactive source emission hole is formed in the shell, the switching device comprises a driving assembly, and the driving assembly comprises a driving piece and a supporting structure. The supporting structure is arranged on the outer side of the shell, the driving piece is connected with the supporting structure, one end of the driving piece is connected with the lead block, and the lead block is driven to slide in the shell to open or close the radioactive source emission hole by controlling the driving piece to move. The rotating plate I rotates, the ejector rod drives the rotating plate II to rotate, the rotating plate II rotates out of the connecting hole, the rotating plate II is provided with a lamplight device, and a worker can judge the opening and closing condition of the radioactive source emission hole by observing the position of lamplight below the liquid level meter.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level gauges, in particular to a radioactive source liquid level gauge switch device. Background Art

[0002] A radioactive source level meter is an instrument that uses radioactive isotopes to measure liquid level. Its core components are a radioactive isotope source and a radiation detector. The liquid level is measured by the absorption and attenuation of radiation from nuclear decay. The radioactive source is installed on one side of the container wall, and the radiation detector is installed on the other side of the container wall. The two transmit and receive information through a transmission medium to perform real-time measurement and monitoring of industrial liquid storage tanks. The radioactive source level meter measures the liquid level by reducing the absorption of radiation. It has the characteristics of high precision and high reliability. It is widely used in chemical, petroleum, pharmaceutical and other fields, and plays an important role in liquid level monitoring and operation control such as feeding, discharge and leakage.

[0003] Currently, when production equipment is shut down for maintenance, the radiation source needs to be turned off. Personnel climb the ladder from the bottom of the tank to the radiation source and push the lead block to close the radiation source emission port. During the operation, the personnel are close to the radiation source material, which makes the operation laborious and the human body is harmed to a certain extent by the radiation leaked from the radiation source. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a radioactive source liquid level meter switch device, which allows workers to switch the radioactive source liquid level meter without having to approach the radioactive source, thereby protecting the health of the workers.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A radioactive source liquid level gauge switch device comprises a shell and a lead block slidably arranged in the shell, a radioactive source emission hole is arranged in the shell, the switch device comprises a driving assembly, the driving assembly comprises a driving member and a supporting structure, the supporting structure is arranged outside the shell, the driving member is connected to the supporting structure, one end of the driving member is connected to the lead block, and the radioactive source emission hole is opened or closed by controlling the movement of the driving member to drive the lead block to slide in the shell.

[0007] Preferably, the support structure includes a support member I and a support member II, a support plate is arranged below the shell, a slide groove is arranged on the support plate, the support member I is slidably arranged on the support plate, and the support member II is fixedly connected to the support plate.

[0008] Preferably, the support member I includes a support block I, a support block II and a clamping plate, one end of the support block I is arranged in the slide groove, and the other end is provided with a limiting groove, the support block II is arranged at one end of the support block I, and a limiting rod is provided on the support block II.

[0009] Preferably, the card plate is symmetrically arranged on both sides of the support block II, and the card plate is provided with a protrusion and a through hole, the protrusion is connected in the limiting groove, and the through hole is connected to the limiting rod.

[0010] Preferably, a spring I is provided between the clamping plate and the support block II, pads are provided on both sides of the support block I, threaded holes are provided on the pads, and screws are threadedly connected to the threaded holes.

[0011] Preferably, the support member II includes a support end and a splint, a connecting plate is provided on the support end, an opening is provided on the connecting plate, a slider is provided on the splint, the slider is aligned with the opening, a connecting block is provided in the opening, springs II are provided at both ends of the connecting block, and the slider is connected to the spring II.

[0012] Preferably, a connecting hole is provided at the bottom of the shell, and the connecting hole passes through the shell and the support plate.

[0013] Preferably, the switch device also includes a reminder structure, which includes a rotating plate I and a rotating plate II. The reminder structure is rotatably arranged in a connecting hole, wherein the rotating plate I is connected to the shell, the rotating plate II is connected to the support plate, a reset spring is connected to the rotating plate I, and a push rod is arranged between the rotating plate I and the rotating plate II.

[0014] The utility model has the following advantages and beneficial effects:

[0015] 1. In the utility model, the driving parts are cylinders and solenoid valves. The telescopic rod of the cylinder is directly connected to the lead block. The solenoid valve is remotely controlled to move the lead block to open and close the radiation source emission hole. Workers do not need to climb high stairs to operate the radiation source level meter, thereby reducing the harm of the radiation source to the workers' bodies.

[0016] 2. In the utility model, when the lead block is away from the emission hole of the radiation source, one of the reminder structures is squeezed, the rotating plate I rotates, the top rod drives the rotating plate II to rotate, and the rotating plate II rotates out from the connecting hole. The rotating plate II is provided with a lighting device, and the worker can judge the opening and closing status of the emission hole of the radiation source by observing the position of the light below the liquid level meter.

[0017] 3. The utility model has a simple structure and is easy to operate. The radioactive source level meter can be opened and closed remotely and has a reminder function to protect the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a radioactive source liquid level gauge switch device provided by the utility model;

[0019] Figure 2 A connection structure diagram of support block I and support block II of a radioactive source liquid level gauge switch device provided by the utility model;

[0020] Figure 3 A schematic diagram of a card plate structure of a radioactive source liquid level gauge switch device provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of a support member I of a radioactive source liquid level gauge switch device provided by the utility model;

[0022] Figure 5 A schematic diagram of the structure of a support member II of a radioactive source liquid level gauge switch device provided by the utility model;

[0023] Figure 6 A cross-sectional view of a support member II of a radioactive source liquid level gauge switch device provided by the utility model;

[0024] Figure 7 A schematic diagram of a reminder structure of a radioactive source liquid level gauge switch device provided by the utility model;

[0025] Figure 8 A cross-sectional view of the connection of a reminder structure of a radioactive source liquid level gauge switch device provided by the utility model;

[0026] Icons: 1-shell, 101-lead block, 102-radiation source emission hole, 103-connecting hole, 2-support plate, 21-slide groove, 3-cylinder, 31-solenoid valve, 4-support part I, 41-support block I, 411-limiting groove, 42-support block II, 421-limiting rod, 422-spring I, 43-pad, 431-threaded hole, 44-clip plate, 441-bump, 442-through hole, 5-support part II, 51-support end, 52-connecting plate, 521-opening, 53-connecting block, 531-spring II, 54-clamp, 541-slider, 6-turn plate I, 61-reset spring, 7-turn plate II, 71-lamp bead, 8-top rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example

[0030] like Figure 1-8 As shown, a radioactive source liquid level gauge switch device comprises a shell 1 and a lead block 101 slidably arranged in the shell 1, a radioactive source emission hole 102 is arranged in the shell 1, and the switch device comprises a driving assembly, the driving assembly comprises a driving member and a supporting structure, the supporting structure is arranged outside the shell 1, the driving member is connected to the supporting structure, one end of the driving member is connected to the lead block 101, and the movement of the driving member is controlled to drive the lead block 101 to slide in the shell 1 to open or close the radioactive source emission hole 102.

[0031] like Figure 1 , 8 As shown, a support plate 2 is provided below the shell 1, a slide groove 21 is provided on the support plate 2, a connecting hole 103 is provided at the bottom of the shell 1, the connecting hole 103 runs through the shell 1 and the support plate 2, there are at least two connecting holes 103, one of the connecting holes 103 is located near the radiation source emission hole 102, and the other is located away from the radiation source emission hole 102, and the driving parts are the cylinder 3 and the solenoid valve 31.

[0032] like Figure 1-6As shown, the support structure includes a support member I4 and a support member II5, and the support member I4 includes a support block I41, a support block II42 and a clamping plate 44. The lower end of the support block I41 is arranged in the slide groove 21, and the support member I4 can slide on the support plate 2. Pads 43 are arranged on both sides of the lower end of the support block I41. The pads 43 and the support plate 2 are fitted together. The pads 43 are provided with threaded holes 431, and the threaded holes 431 penetrate the pads 43. The threaded holes 431 are threaded in the threaded holes 431. The thread is connected with a screw, and the screw is tightened to make it close to the support plate 2 to fix the support member I4. The support block II42 is arranged at one end of the support block I41, and a limiting rod 421 is arranged on the support block II42. A limiting groove 411 is also arranged on the upper end of the support block I41. The lengths of the limiting rod 421 and the limiting groove 411 are consistent. The card plate 44 is symmetrically arranged on both sides of the support block II42. A convex block 441 and a through hole 442 are arranged on the card plate 44. The convex block 441 and the through hole 442 are arranged on the card plate 44. Block 441 is connected in the limiting groove 411, and the through hole 442 is connected to the limiting rod 421. The card plate 44 is connected to the support block I41 and the support block II42 respectively through the protrusion 441 and the through hole 442, and can slide on the support block I41. The limiting groove 411 limits the card plate 44 to slide only along the direction of the limiting groove 411. The limiting rod 421 supports the sliding of the card plate 44 and also stabilizes its sliding state, making its adjustment process smoother. A spring I422 is arranged between the card plate 44 and the support block II42. When the card plate 44 moves toward the direction close to the support block II42, the spring I422 is compressed, and when the card plate 44 moves toward the direction away from the support block II42, the spring I422 is stretched. The spring I422 can not only limit the card plate 44 from infinitely moving in the direction away from the support block II42, but also continuously provide reverse pulling force during the stretching process, so that the card plate 44 can clamp the cylinder 3.

[0033] like Figure 1 , 5 As shown in Figure 6, the support member II5 includes a support end 51 and a clamping plate 54, the clamping plates 54 are symmetrically arranged on both sides of the connecting plate 52, the support end 51 is fixedly connected to the support plate 2, a connecting plate 52 is arranged on the support end 51, the connecting plate 52 and the support end 51 are vertically arranged, a plurality of openings 521 are arranged on the connecting plate 52, the openings 521 penetrate the connecting plate 52, a slider 541 is arranged at one end of the clamping plate 54, the slider 541 is aligned with the opening 521, a connecting block 53 is fixedly arranged in the opening 521, a plurality of springs II 531 are arranged at both ends of the connecting block 53, the slider 541 is connected to the spring II 531, when the clamping plate 54 moves to both sides, the spring II 531 is stretched, when the clamping plates 54 are close to each other, the spring II 531 is compressed, the clamping plate 44 and the clamping plate 54 can be adjusted respectively to clamp the cylinders 3 of different sizes.

[0034] like Figure 1 , 7As shown in , 8, the switch device also includes a reminder structure, the reminder structure includes a rotating plate Ⅰ6 and a rotating plate Ⅱ7, the reminder structure is rotatably arranged in the connecting hole 103, the rotating plate Ⅰ6 is rotatably connected to the housing 1, the rotating plate Ⅰ6 is connected to a reset spring 61, the initial position of the rotating plate Ⅰ6 is inclined, and maintains a certain angle with the housing 1, the rotating plate Ⅱ7 is rotatably connected to the support plate 2, and a push rod 8 is arranged between the rotating plate Ⅰ6 and the rotating plate Ⅱ7, the push rod 8 passes through the rotating plate Ⅰ6 and the rotating plate Ⅱ7 respectively, one end is rotatably connected to the rotating plate Ⅰ6, and the other end is rotatably connected to the rotating plate Ⅱ7. When plate I6 is in the initial position, rotating plate I6 pulls the push rod 8, and the push rod 8 keeps rotating plate II7 in a position parallel to the support plate 2. When rotating plate I6 rotates toward the shell 1, rotating plate I6 pushes the push rod 8 to move, and then the push rod 8 pushes rotating plate II7 out of the connecting hole 103. A light-emitting device is installed at one end of rotating plate II7, and the light-emitting device can be a lamp bead 71. When rotating plate II7 is out of the connecting hole 103, the worker can understand the opening and closing status of the radiation source emission hole 102 below the switch device, and timely control the cylinder 3 to push the lead block 101 to move.

[0035] Working principle: place the end of the cylinder 3 on the support end 51, and adjust the position of the clamping plate 54 according to the shape of the cylinder 3, so that the clamping plate 54 clamps the two sides of the cylinder 3, place the front end of the cylinder 3 on the support block Ⅰ41, adjust the position of the clamping plate 44, so that the clamping plate 44 clamps the two sides of the cylinder 3, and slide the support member Ⅰ4 to a stable position, screw the screw into the threaded hole 431, so that the screw passes through the threaded hole 431 and fits tightly against the support plate 2. The above operation limits the position of the cylinder 3, connects the telescopic rod of the cylinder 3 and the lead block 101, and also connects the solenoid valve 31 and the cylinder 3, controls the cylinder 3 to drive the lead block 101 to move, and when the lead block 101 opens the radiation source emission hole 102, the lead block 101 squeezes the rotating plate Ⅰ at one end away from the radiation source emission hole 102. 6. The rotating plate I6 rotates into the connecting hole 103. When the rotating plate I6 rotates, it drives the push rod 8 to move. The push rod 8 pushes the rotating plate II7 to rotate and makes the rotating plate II7 exposed from the bottom of the supporting plate 2. The worker can observe the lamp bead 71 lighting up from a distance, reminding the worker that the radiation source emission hole 102 is in an open state at this time. When the control cylinder 3 pushes the lead block 101 to move in the opposite direction, the reminder structure near one end of the radiation source emission hole 102 also moves. The worker observes the lamp bead 71, reminding the worker that the radiation source emission hole 102 is in a closed state at this time. At the same time, when the lead block 101 is away from one of the rotating plates I6, the reset spring 61 is reset without force, so that the rotating plate I6 is in an inclined position, the rotating plate II7 is retracted into the connecting hole 103, and the lamp bead 71 is also retracted into the inside of the supporting plate 2.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A radioactive source level gauge switch device, comprising a housing and a lead block slidably arranged in the housing, wherein a radioactive source emission hole is arranged in the housing, characterized in that: The switch device includes a driving assembly, which includes a driving member and a supporting structure. The supporting structure is arranged outside the shell, and the driving member is connected to the supporting structure. One end of the driving member is connected to the lead block. By controlling the movement of the driving member, the lead block is driven to slide in the shell to open or close the radiation source emission hole.

2. A radioactive source liquid level gauge switch device according to claim 1, characterized in that: The supporting structure includes a supporting member I and a supporting member II. A supporting plate is arranged below the shell, a sliding groove is arranged on the supporting plate, the supporting member I is slidably arranged on the supporting plate, the supporting member II is fixedly connected to the supporting plate, and the driving member is respectively connected to the supporting member I and the supporting member II.

3. A radioactive source level gauge switch device according to claim 2, characterized in that: The support member I includes a support block I, a support block II and a clamping plate. One end of the support block I is arranged in a slide groove, and the other end is provided with a limiting groove. The support block II is arranged at one end of the support block I, and a limiting rod is provided on the support block II.

4. A radioactive source level gauge switch device according to claim 3, characterized in that: The clamping plate is symmetrically arranged on both sides of the support block II. The clamping plate is provided with a convex block and a through hole. The convex block is connected in the limiting groove, and the through hole is connected to the limiting rod.

5. A radioactive source liquid level gauge switch device according to claim 4, characterized in that: A spring I is arranged between the clamping plate and the support block II, pads are arranged on both sides of the support block I, threaded holes are arranged on the pads, and screw rods are threadedly connected in the threaded holes.

6. A radioactive source liquid level gauge switch device according to claim 5, characterized in that: The support member II includes a support end and a clamping plate, a connecting plate is arranged on the support end, an opening is arranged on the connecting plate, a slider is arranged on the clamping plate, the slider is aligned with the opening, a connecting block is arranged in the opening, springs II are arranged at both ends of the connecting block, and the slider is connected to the spring II.

7. A radioactive source liquid level gauge switch device according to claim 6, characterized in that: A connecting hole is provided at the bottom of the shell, and the connecting hole passes through the shell and the supporting plate.

8. A radioactive source liquid level gauge switch device according to claim 7, characterized in that: The switch device also includes a reminder structure, which includes a rotating plate I and a rotating plate II. The reminder structure is rotatably arranged in a connecting hole. The rotating plate I is connected to the shell, and the rotating plate II is connected to the supporting plate. A reset spring is connected to the rotating plate I, and a push rod is arranged between the rotating plate I and the rotating plate II.

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