A screw block level gauge

Abstract

The utility model provides a kind of anti-rotation material level meter, including motor, the output of motor is fixedly connected with rotating rod by shaft coupling, the one end of rotating rod is equipped with recess, the inner side wall of recess is fixedly connected with first electric push rod, the one end of first electric push rod is fixedly connected with telescopic link, the inside of telescopic link is equipped with working groove, the inner wall of working groove is fixedly connected with second electric push rod, the one end of second electric push rod is fixedly connected with moving rod. The inside of support frame is moved by the one end of second electric push rod and guiding block, in turn, can be rotated to vertical direction by guiding block and blade, in turn, blade will not hinder rotating rod and install the mouth of container, it can be installed in the outside of container by mounting plate and motor, in turn, so that motor is outside, rotating rod is in the inside of container, in turn, realize the diameter of blade is greater than the mouth of installation, without disassembling blade also can install the device.

Description

Technical Field

[0001] This utility model is a rotary paddle level gauge, belonging to the field of level gauges. Background Technology

[0002] A rotary paddle level gauge is an instrument used to detect the position of materials in a silo. Its working principle is that an AC micro motor drives the detection blades to rotate. When the material rises and obstructs the rotation of the blades, the main shaft of the detection mechanism generates a rotational displacement, triggering a micro switch to send a signal that there is material and cut off the power to the motor. When the material falls, the blades lose their obstruction and return to their original state by the spring tension. The motor is then powered on again to rotate, thus detecting the position of the material inside the container.

[0003] However, in the existing technology, when the diameter of the rotor level gauge blade is larger than the installation port, the blade needs to be disassembled, the rotating rod at the motor output end needs to be passed through the installation port, and then the blade needs to be installed on the rotating rod through the container opening. This makes the installation process very troublesome, which in turn increases the difficulty of installing the rotor level gauge. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary paddle level gauge to solve the problems mentioned in the background technology. This utility model enables the device to be installed without disassembling the blades when the diameter of the blades is larger than the installation opening, thereby reducing the difficulty of installing the rotary paddle level gauge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary level gauge includes a motor, the output end of which is fixedly connected to a rotating rod via a coupling. One end of the rotating rod has a groove, and a first electric push rod is fixedly connected to the inner wall of the groove. One end of the first electric push rod is fixedly connected to a telescopic rod, the telescopic rod has a working groove inside, and a second electric push rod is fixedly connected to the inner wall of the working groove. One end of the second electric push rod is fixedly connected to a moving rod, and one end of the moving rod is fixedly connected to a guide block. One end of the telescopic rod is provided with a material-blocking component.

[0006] Furthermore, the material blocking component includes a support frame fixedly connected to one end of the telescopic rod. A rotating groove is provided on one side of the support frame. A spring box is fixedly connected to the inner wall of the rotating groove. A connecting rod is rotatably sleeved on the inner wall of the spring box. A blade is fixedly sleeved on the outer wall of the connecting rod.

[0007] Furthermore, a spiral spring is fixedly connected to the inner wall of the spring box, and the outer wall of the connecting rod is fixedly connected to one end of the spiral spring.

[0008] Furthermore, an alarm is fixedly connected to the outer wall of the motor, and a mounting plate is rotatably sleeved on the outer wall of the rotating rod.

[0009] Furthermore, the telescopic rod is slidably sleeved with the groove, and a sealing element is fixedly connected to one end of the rotating rod, with the telescopic rod slidably sleeved with the sealing element.

[0010] Furthermore, the movable rod is slidably sleeved with the telescopic rod, the movable rod is slidably sleeved with the support frame, and the guide block has a frustum-shaped structure.

[0011] The beneficial effects of this utility model are: 1. By driving the guide block to move into the support frame through one end of the second electric push rod, the blade can be driven to rotate vertically through the guide block. Thus, the blade will not obstruct the rotating rod from passing through the installation port of the container. The motor can then be installed on the outside of the container through the mounting plate. This allows the motor to be on the outside and the rotating rod to be on the inside of the container. This enables the device to be installed even when the diameter of the blade is larger than the installation port, without removing the blade, thereby reducing the difficulty of installing the rotary paddle level gauge.

[0012] 2. One end of the first electric push rod can drive the telescopic rod to move outward of the rotating rod, thereby increasing the length between the motor and the blade, and thus adjusting the position of the blade. This allows the position of the blade to be adjusted according to the inner diameter of the container, further meeting the working requirements of the device and improving its practicality. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a rotary paddle level gauge according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the rotating rod in this utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the spring box in this utility model.

[0014] In the diagram: 1. Motor; 2. Rotating rod; 3. Mounting plate; 4. Alarm; 5. Groove; 6. First electric push rod; 7. Telescopic rod; 8. Seal; 9. Working groove; 10. Second electric push rod; 11. Scroll spring; 12. Support frame; 13. Rotating groove; 14. Spring box; 15. Connecting rod; 16. Blade; 17. Guide block; 18. Moving rod. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1-4 This utility model provides a technical solution: a rotary paddle level gauge, including a motor 1. The output end of the motor 1 is fixedly connected to a rotating rod 2 via a coupling. The motor 1 is installed at the required level in a container. The rotating rod 2 is located inside the container. The operation of the motor 1 can drive the rotating rod 2 to rotate. A groove 5 is formed at one end of the rotating rod 2. A first electric push rod 6 is fixedly connected to the inner wall of the groove 5. A telescopic rod 7 is fixedly connected to one end of the first electric push rod 6. A working groove 9 is formed inside the telescopic rod 7. A second electric push rod 10 is fixedly connected to the inner wall of the working groove 9. One end of the moving rod 18 is fixedly connected to a movable rod 18, and the other end of the movable rod 18 is fixedly connected to a guide block 17. When the second electric push rod 10 is activated, one end of the second electric push rod 10 will retract, and then the guide block 17 can be moved into the support frame 12 by the movable rod 18. One end of the telescopic rod 7 is provided with a material blocking component. When the first electric push rod 6 is activated, one end of the first electric push rod 6 can drive the telescopic rod 7 to move outward of the rotating rod 2, which can increase the length between the motor 1 and the material blocking component, and thus the position of the material blocking component can be adjusted according to the inner wall diameter of the container.

[0017] The material blocking component includes a support frame 12 fixedly connected to one end of the telescopic rod 7. A rotating groove 13 is provided on one side of the support frame 12. A spring box 14 is fixedly connected to the inner wall of the rotating groove 13. A connecting rod 15 is rotatably sleeved on the inner wall of the spring box 14. A blade 16 is fixedly sleeved on the outer wall of the connecting rod 15. The support frame 12 can provide effective support. When the rotating rod 2 rotates, it can drive the blade 16 to rotate. Thus, the blade 16 can play a role in preventing rotation. As the material slowly enters the container, when the material inside the container accumulates to the height of the blade 16, the blade 16 will be blocked by the material and cannot rotate. As a result, the rotating rod 2 is blocked, thus blocking the output end of the motor 1.

[0018] A spiral spring 11 is fixedly connected to the inner wall of the spring box 14, and the outer wall of the connecting rod 15 is fixedly connected to one end of the spiral spring 11. When the connecting rod 15 rotates, the spiral spring 11 will be wound tightly. Then, when the connecting rod 15 is no longer limited, the spiral spring 11 can drive the connecting rod 15 to reset, thereby driving the blade 16 to reset.

[0019] An alarm 4 is fixedly connected to the outer wall of the motor 1, and a mounting plate 3 is rotatably sleeved on the outer wall of the rotating rod 2. The alarm 4 is an existing device and will not be explained in detail here. When the rotating rod 2 is resisted and cannot rotate, the alarm 4 will sound an alarm to remind the staff that the material has reached the rotating rod 2. The motor 1 can be installed on the outside of the container through the mounting plate 3, so that the motor 1 is on the outside and the rotating rod 2 is inside the container.

[0020] The telescopic rod 7 is slidably sleeved with the groove 5. One end of the rotating rod 2 is fixedly connected to a sealing element 8. The telescopic rod 7 and the sealing element 8 are slidably sleeved. When the first electric push rod 6 is activated, one end of the first electric push rod 6 can drive the telescopic rod 7 to move outward of the rotating rod 2, thereby increasing the length between the motor 1 and the blade 16, and thus adjusting the position of the blade 16. The position of the blade 16 can be adjusted according to the inner diameter of the container. The sealing element 8 can play a sealing role, so that the material will not enter the interior of the groove 5.

[0021] The movable rod 18 is slidably sleeved with the telescopic rod 7, and the movable rod 18 is slidably sleeved with the support frame 12. The guide block 17 has a frustum-shaped structure. When the second electric push rod 10 is activated, one end of the second electric push rod 10 will retract, and then the guide block 17 can be driven to move into the support frame 12 through the movable rod 18. The outer wall of the guide block 17 is an arc surface, so when the guide block 17 moves into the support frame 12, its outer wall can drive the blade 16 to rotate in the vertical direction.

[0022] Working principle: First, start the first electric push rod 6. One end of the first electric push rod 6 can drive the telescopic rod 7 to move outward of the rotating rod 2, thereby increasing the length between the motor 1 and the blade 16. Then, the distance between the blade 16 and the motor 1 can be adjusted according to the work requirements. Next, the second electric push rod 10 is activated, and one end of the second electric push rod 10 will retract. Then, the guide block 17 can be moved into the support frame 12 by the moving rod 18. Then, the blade 16 can be rotated in the vertical direction by the guide block 17. Then, the blade 16 will not obstruct the rotating rod 2 from passing through the container's installation port. The motor 1 can then be installed on the outside of the container by the mounting plate 3, so that the motor 1 is on the outside and the rotating rod 2 is inside the container. Finally, the second electric push rod 10 is activated again. One end of the second electric push rod 10 extends, causing the guide block 17 to reset. Consequently, the guide block 17 no longer limits the blade 16. The spiral spring 11 can drive the connecting rod 15 to reset, thereby driving the blade 16 to reset. The blade 16 can then play a role in preventing rotation.

[0023] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screw level gauge comprising a motor (1), characterised in that: The output end of the motor (1) is fixedly connected to a rotating rod (2) via a coupling. A groove (5) is provided at one end of the rotating rod (2). A first electric push rod (6) is fixedly connected to the inner wall of the groove (5). A telescopic rod (7) is fixedly connected to one end of the first electric push rod (6). A working groove (9) is provided inside the telescopic rod (7). A second electric push rod (10) is fixedly connected to the inner wall of the working groove (9). A moving rod (18) is fixedly connected to one end of the second electric push rod (10). A guide block (17) is fixedly connected to one end of the moving rod (18). A material blocking component is provided at one end of the telescopic rod (7).

2. A spin blocking level indicator according to claim 1 wherein: The material blocking component includes a support frame (12) fixedly connected to one end of the telescopic rod (7). A rotating groove (13) is provided on one side of the support frame (12). A spring box (14) is fixedly connected to the inner wall of the rotating groove (13). A connecting rod (15) is rotatably sleeved on the inner wall of the spring box (14). A blade (16) is fixedly sleeved on the outer wall of the connecting rod (15).

3. A spin blocking level indicator according to claim 2, wherein: The inner wall of the spring box (14) is fixedly connected to a spiral spring (11), and the outer wall of the connecting rod (15) is fixedly connected to one end of the spiral spring (11).

4. A spin blocking level indicator as claimed in claim 1, wherein: An alarm (4) is fixedly connected to the outer wall of the motor (1), and a mounting plate (3) is rotatably sleeved on the outer wall of the rotating rod (2).

5. A spin blocking level indicator as claimed in claim 1, wherein: The telescopic rod (7) is slidably sleeved with the groove (5), and a sealing element (8) is fixedly connected to one end of the rotating rod (2). The telescopic rod (7) and the sealing element (8) are slidably sleeved together.

6. A spin blocking level indicator as claimed in claim 1, wherein: The movable rod (18) is slidably sleeved with the telescopic rod (7), the movable rod (18) is slidably sleeved with the support frame (12), and the guide block (17) has a "frustum" shaped structure.

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