Material position detection device

Abstract

The utility model discloses a material position detection device, which relates to the technical field of material conveying and comprises a shell, a detection rod and a sensor capable of detecting whether the detection rod rotates or not. One end of the detection rod is a rotating end rotatably connected to the hinge seat, and the other end of the detection rod is a movable end; the movable end of the detection rod at least partially extends into the shell through an assembly hole in the side wall of the shell, and the part, correspondingly extending into the shell, of the detection rod is a detection part which can be jacked up by materials to enable the detection rod to rotate around the rotating end; and a gap for the detection rod to rotate around the rotating end is formed between the assembly hole and the detection rod. According to the material position detection device provided by the utility model, the contact force generated by the contact between the material and the detection rod is utilized to push the detection rod to rotate, and the position change of the detection rod is detected through the sensor to judge whether the material is blocked; the sensor can be installed outside the housing, thereby reducing the cost and installation operation difficulty of the sensor, and prolonging the service life of the sensor.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and specifically to a material position detection device. Background Technology

[0002] In high-temperature briquetting equipment, the briquetting material needs to be conveyed through a chute to the next processing unit. At this time, the material temperature is very high, for example, some materials reach about 700℃. When the material gets blocked in the chute and is not detected and dealt with, it often causes serious accidents. To avoid this situation, the accumulation height of the material can be detected to determine whether the chute is blocked, so that the control device can determine the next action.

[0003] In existing equipment, through-beam infrared or laser sensors are usually installed on both sides of the chute. One end emits and the other end receives. The signal change at the receiving end determines whether there is a blockage. For example, Chinese patent: A device to prevent chute blockage, announcement number CN203667495U. However, such sensors have high installation requirements, especially when the distance between the transmitting and receiving ends is long. Alignment of the transmitting and receiving ends is difficult, making installation and maintenance difficult. In addition, infrared sensors are often installed on the inner wall of the chute, and as mentioned above, high-temperature materials can easily damage the sensors inside the chute, resulting in high detection costs. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems by providing a material position detection device. This device utilizes the contact force generated when the material contacts the probe rod to drive the probe rod to rotate, and then uses a sensor to detect changes in the position of the probe rod to determine whether the material is causing a blockage.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A material position detection device includes a housing for accommodating material, a probe rod, and a sensor for detecting whether the probe rod rotates. One end of the probe rod is a rotating end rotatably connected to a hinge base, and the other end is a movable end. The movable end of the probe rod extends at least partially into the housing through an assembly hole on the side wall of the housing. The portion of the probe rod that extends into the housing is a detection part that can be lifted by the material to allow the probe rod to rotate around the rotating end. A gap is formed between the assembly hole and the probe rod to allow the probe rod to rotate around the rotating end.

[0007] Furthermore, the side wall of the housing is provided with a pair of assembly holes, and the movable end of the probe rod passes through the pair of assembly holes and extends out of the housing.

[0008] Furthermore, the movable end is provided with an elastic element that can provide elasticity to the movable end.

[0009] Furthermore, the elastic element is a return spring that can overcome the rotational resistance of the rotating end without the action of external force.

[0010] Furthermore, the elastic element is a support spring that keeps the probe rod horizontal when no external force is applied.

[0011] Furthermore, a limiting block is provided below the movable end to support the movable end. When no external force is applied to the probe rod, the movable end abuts against the limiting block.

[0012] Furthermore, the height of the bottom end of the assembly hole is lower than the height of the top end of the limiting block.

[0013] Furthermore, the sensor is a rotary encoder disposed on the rotating end, or a proximity switch, displacement sensor, position switch, or touch switch disposed on the moving end.

[0014] Furthermore, the sensor signal is connected to the control device.

[0015] Furthermore, the rotating end and the hinge seat are rotatably connected via a revolute joint or a spherical joint.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model utilizes the contact force generated by the material contacting the probe rod to drive the probe rod to rotate, and then uses a sensor to detect the change in the position of the probe rod to determine whether the material is blocking the blockage.

[0018] 2. This utility model allows the sensor to be installed outside the housing, which is simple to install and low in cost.

[0019] 3. This utility model can avoid direct contact between the sensor and high-temperature materials or avoid the sensor being in a high-temperature area, thereby reducing sensor cost and installation difficulty, and improving sensor lifespan.

[0020] 4. This utility model can improve the detection sensitivity of the probe by setting an elastic element, so that it can be applied to materials of different particle sizes.

[0021] 5. This utility model can help the probe rod to reset by setting an elastic element.

[0022] 6. This utility model provides support for the movable end of the probe rod by using a limiting block, thereby preventing the probe rod from damaging the thinner sidewall of the housing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the probe rod of this utility model in a horizontal state;

[0024] Figure 2This is a schematic diagram of the structure of the detection rod of this utility model, which is lifted up by the blocked material and rotates around the rotating end;

[0025] Figure 3 This is a schematic diagram of the structure of the probe rod extending into the housing of this utility model.

[0026] The markings in the diagram are: 1-Hinged base, 2-Detector rod, 3-Limiting block, 4-Sensor, 5-Fixed base, 6-Elastic element, 7-Housing, 8-Material. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] Example 1

[0030] A material position detection device, such as Figure 1-2 As shown, the device includes a housing 7 for accommodating materials, a probe 2, and a sensor 4 for detecting whether the probe 2 rotates. One end of the probe 2 is a rotating end rotatably connected to a hinge base 1, and the other end is a movable end. A pair of mounting holes are provided on the side wall of the housing 7. The pair of mounting holes can be set at the same height, or the probe 2 can be tilted as needed. In this embodiment, the pair of mounting holes are set at the same height. The movable end of the probe 2 passes through the pair of mounting holes and extends out of the housing 7. The portion of the probe 2 that extends into the housing 7 is a detection part that can be lifted by the material 8, allowing the probe 2 to rotate around its rotating end. A gap is formed between the mounting hole and the probe 2, allowing the probe 2 to rotate around its rotating end.

[0031] A fixed base 5 is provided above the movable end, and an elastic element 6 that can provide elastic force to the movable end is provided between the fixed base 5 and the movable end.

[0032] The elastic element 6 is a return spring that can overcome the rotational resistance of the rotating end without external force. Preferably, the return spring is a compression spring.

[0033] A limiting block 3 is provided below the movable end to support the movable end. When no external force is applied to the probe rod, the movable end abuts against the limiting block 3, and the probe rod 2 remains horizontal.

[0034] The height of the bottom of the assembly hole is lower than the height of the top of the limiting block 3. That is, when the movable end of the probe 2 abuts against the limiting block 3, the probe 2 will not contact the bottom of the assembly hole, thus avoiding damage to the thinner sidewall of the housing 7 by the probe 2.

[0035] The sensor 4 can detect changes in the state of the active end. In this embodiment, the sensor is preferably a proximity switch located on the active end, which includes, but is not limited to, a magnetic induction switch.

[0036] The sensor 4 signal is connected to the control device.

[0037] The rotating end is rotatably connected to the hinge seat 1 via a rotating pair.

[0038] In this embodiment, the housing 7 is a chute. When material 8 accumulates and becomes blocked in the chute, causing it to rise to contact the detection rod 2, the material 8 exerts a contact force on the detection rod 2. As the material 8 continues to rise, the contact force acts on the detection rod 2, causing it to overcome its own weight, the rotational resistance of the rotating end of the detection rod 2, and the elastic force of the return spring, pushing it away from its original position. The sensor 4 detects the rotation of the detection rod 2 and sends a signal to the control device. The control device can then determine that the material 8 has risen to the set position and alerts the operator that the chute is blocked. When the material 8 descends, the elastic force of the return spring acts on the detection rod 2, allowing it to automatically return to its original position. When the detection rod 2 returns to a horizontal state, the sensor 4 sends a signal to the control device. The control device can then determine that the accumulated material 8 has been cleared and alerts the operator that the chute has returned to normal operation.

[0039] Example 2

[0040] A material position detection device, such as Figure 1-2 As shown, the device includes a housing 7, a probe rod 2, and a sensor 4 for detecting whether the probe rod 2 rotates. One end of the probe rod 2 is a rotating end rotatably connected to the hinge seat 1, and the other end is a movable end. A pair of mounting holes are provided on the side wall of the housing 7, with the height of the paired mounting holes being the same. The movable end of the probe rod 2 passes through the paired mounting holes and extends out of the housing 7. The portion of the probe rod 2 that extends into the housing 7 is a detection part that can be lifted by a material 8, allowing the probe rod 2 to rotate around its rotating end. A gap is formed between the mounting hole and the probe rod 2, allowing the probe rod 2 to rotate around its rotating end.

[0041] A fixed base 5 is provided above the movable end, and an elastic element 6 that can provide elastic force to the movable end is provided between the fixed base 5 and the movable end.

[0042] The elastic element 6 is a support spring that keeps the probe rod 2 horizontal when no external force is applied. Preferably, the return spring is a tension spring.

[0043] A limiting block 3 is provided below the movable end to support the movable end. When the movable end abuts against the limiting block 3, the probe rod 2 is in a horizontal state.

[0044] The height of the bottom of the assembly hole is lower than the height of the top of the limiting block 3. That is, when the movable end of the probe 2 abuts against the limiting block 3, the probe 2 will not contact the bottom of the assembly hole, thus avoiding damage to the thinner sidewall of the housing 7 by the probe 2.

[0045] The sensor 4 is a displacement sensor 4 installed at the movable end.

[0046] The sensor 4 signal is connected to the control device.

[0047] The rotating end is rotatably connected to the hinge seat 1 via a spherical pair.

[0048] In this embodiment, the housing 7 is a chute. The supporting spring provides support so that the probe rod 2 can overcome its own weight and remain horizontal. When the material 8 accumulates and becomes blocked in the chute, causing it to rise to contact the probe rod 2, the material 8 generates a contact force on the probe rod 2. As the material 8 continues to rise, the contact force overcomes the rotational resistance at the rotating end of the probe rod 2, pushing the probe rod 2 away from its original position. The sensor 4 detects the rotation of the probe rod 2 and sends a signal to the control device. The control device can then determine that the material 8 has risen to the set position and alerts the operator that the chute is blocked. When the material 8 descends, the probe rod 2 can reset under its own weight. When the probe rod 2 returns to a horizontal state, the sensor 4 sends a signal to the control device. The control device can then determine that the accumulated material 8 has been cleared and alerts the operator that the chute has returned to normal.

[0049] Compared to Example 1, the rotation of the probe rod 2 in Example 2 does not take into account the gravity of the probe rod 2 itself, so its rotation accuracy is more sensitive and it is suitable for materials 8 with smaller particle size, while Example 1 is more suitable for materials 8 with larger particle size.

[0050] Example 3

[0051] A material position detection device, such as Figure 3 As shown, the device includes a housing 7, a probe rod 2, and a sensor 4 that detects whether the probe rod 2 rotates. One end of the probe rod 2 is a rotating end rotatably connected to the hinge seat 1, and the other end is a movable end. The movable end of the probe rod 2 extends into the housing 7 through a mounting hole on the side wall of the housing 7. The portion of the probe rod 2 that extends into the housing 7 is a detection part that can be lifted by a material 8, allowing the probe rod 2 to rotate around its rotating end. A gap is formed between the mounting hole and the probe rod 2, allowing the probe rod 2 to rotate around its rotating end.

[0052] When no external force is applied, the probe rod 2 remains in its initial state under the support of the bottom end of the mounting hole and the hinge seat 1. In this initial state, the probe rod 2 can remain horizontal or tilt at a certain angle as needed. In this embodiment, the probe rod 2 remains horizontal in its initial state.

[0053] The sensor 4 is a rotary encoder installed at the rotating end.

[0054] The sensor 4 signal is connected to the control device.

[0055] The rotating end is rotatably connected to the hinge seat 1 via a spherical pair.

[0056] In this embodiment, the housing 7 is a chute. When material 8 accumulates and becomes blocked in the chute, causing it to rise to contact the probe 2, the material 8 exerts a contact force on the probe 2. As the material 8 continues to rise, the contact force overcomes the weight of the probe 2 and the rotational resistance of its rotating end, pushing the probe 2 away from its original position. The sensor 4 detects the rotation of the probe 2 and sends a signal to the control device. The control device then determines that the material 8 has risen to the set position and alerts the operator that the chute is blocked. When the material 8 descends, the probe 2 resets under its own weight. When the probe 2 returns to a horizontal state, the sensor 4 sends a signal to the control device, which then determines that the accumulated material 8 has been cleared and alerts the operator that the chute has returned to normal. This embodiment allows the housing 7 to have only one assembly hole, which improves the strength of the chute and effectively reduces material leakage at the assembly hole. Alternatively, a corresponding collection device or sealing device can be installed at the assembly hole to prevent contamination from leakage.

[0057] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0058] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A material position detection device, comprising a housing for accommodating material, characterized in that, It also includes a probe rod and a sensor that can detect whether the probe rod rotates; one end of the probe rod is a rotating end that is rotatably connected to the hinge seat, and the other end is a movable end; the movable end of the probe rod extends into the housing at least partially through the assembly hole on the side wall of the housing, and the part of the probe rod that extends into the housing is a detection part that can be lifted by materials to make the probe rod rotate around the rotating end; a gap is formed between the assembly hole and the probe rod to allow the probe rod to rotate around the rotating end.

2. The material position detection device as described in claim 1, characterized in that, The side wall of the housing is provided with a pair of assembly holes, and the movable end of the probe rod passes through the pair of assembly holes and extends out of the housing.

3. The material position detection device as described in claim 2, characterized in that, The movable end is provided with an elastic element that can provide elasticity to the movable end.

4. The material position detection device as described in claim 3, characterized in that, The elastic element is a return spring that can overcome the rotational resistance of the rotating end without the action of external force.

5. The material position detection device as described in claim 3, characterized in that, The elastic element is a support spring that keeps the probe rod horizontal when no external force is applied.

6. The material position detection device as described in claim 2, characterized in that, A limiting block is provided below the movable end to support the movable end. When no external force is applied to the probe, the movable end abuts against the limiting block.

7. The material position detection device as described in claim 6, characterized in that, The height of the bottom of the assembly hole is lower than the height of the top of the limiting block.

8. The material position detection device according to any one of claims 1-7, characterized in that, The sensor is a rotary encoder located at the rotating end, or a proximity switch, displacement sensor, position switch, or touch switch located at the moving end.

9. The material position detection device as described in claim 8, characterized in that, The sensor signal is connected to the control device.

10. The material position detection device as described in claim 1, characterized in that, The rotating end and the hinged seat are rotatably connected via a revolute joint or a spherical joint.

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