CN111453233B - Material level detection device, hopper and car dumper - Google Patents

Abstract

The invention relates to a material level detection device, a hopper and a car dumper. The base is equipped with the mounting hole, and the measuring part wears to locate the mounting hole and rotationally is connected with the base, and the one end of measuring part is used for setting up internally at the funnel, and the other end of measuring part is used for setting up outside the funnel. The detection piece moves to the detection range of the proximity switch, and the proximity switch can sense the detection piece. When the material in the funnel body is higher than the detection piece, the one end that the detection piece is located the funnel body is pressed to the funnel body bottom, and the one end that the detection piece is located the funnel body is lifted up, and proximity switch can sense the detection piece like this. When the material in the funnel body is lower than the detection piece, under the effect of the weight piece, the detection piece is positioned at one end outside the funnel body and is pressed to the bottom of the funnel body, so that the proximity switch cannot sense the detection piece. Whether sense the material level of detection piece in order to detect the funnel through proximity switch, simple structure easily makes the installation.

Description

Material level detection device, hopper and car dumper

Technical Field

The invention relates to the technical field of car dumpers, in particular to a material level detection device, a hopper and a car dumper.

Background

The tipper and the funnel are one of the important tools in the material transfer process, and the tipper is usually adopted to dump the material into the funnel, the material falls onto the conveyer belt under the action of the activation feeder, and the conveyer belt conveys the material to the position of the next transfer point. In the operation process, when the hopper contains more materials, the tippler can touch the materials in the hopper when the tippler performs the tippler operation, so that the tippler is damaged; when the material is less in the hopper, the tipper carries out the tipper operation and can lead to the material directly to fall the feed mechanism of funnel below to construct great impact to the batcher, consequently the material level of material in the hopper need constantly be detected at the in-process of tipper operation. In order to detect the height of material in the hopper, the material level detection device should be transported, but the material level of material in the hopper can not be accurately detected by the traditional detection device, and the structure is complicated and the installation is complicated.

Disclosure of Invention

Based on this, it is necessary to provide a material level detection device, funnel and tipper, can accurately detect the material level of material in the funnel to simple structure easily makes the installation.

A level detection device comprising:

the base is provided with a mounting hole and is used for being mounted on the side wall of the funnel body;

the detection piece penetrates through the mounting hole and is rotatably connected with the base, one end of the detection piece is arranged in the funnel body, and the other end of the detection piece is arranged outside the funnel body;

the counterweight is arranged at one end of the detection part, which is positioned outside the funnel body;

the detection piece moves to the detection range of the proximity switch, and the proximity switch can sense the detection piece.

The material level detection device at least has the following advantages:

above-mentioned scheme provides a material level detection device, installs material level detection device in the lateral wall of funnel body, and the one end of detection piece is located the funnel body, and the other end of detection piece is located outside the funnel body. When the material in the funnel body is higher than the height of the detection piece, one end of the detection piece, which is positioned in the funnel body, is pressed to the bottom of the funnel body under the action of the gravity of the material. According to the lever principle, one end of the detection piece, which is positioned outside the funnel body, is lifted, so that the proximity switch can sense the detection piece and indicate that the material in the funnel body is higher than the height of the detection piece. In the feeding process, the material in the funnel body gradually falls, when the material in the funnel body is lower than the height of the detection piece, under the action of the weight piece, one end of the detection piece, which is positioned outside the funnel body, is pressed to the bottom of the funnel body, so that the proximity switch cannot sense the detection piece, and the material in the funnel body is lower than the height of the detection piece. This scheme is under the combined action that detects piece, counter weight and proximity switch, whether sense this detection piece through proximity switch, alright accurately detect the material level of the internal material of funnel, simple structure easily makes the installation.

The technical solution is further explained below:

in one embodiment, the base comprises a bottom plate and a mounting assembly, wherein the mounting assembly comprises a first mounting plate and a second mounting plate, and the first mounting plate and the second mounting plate are arranged on the bottom plate at intervals.

In one embodiment, the mounting assembly further comprises a rotating shaft, the first mounting plate and the second mounting plate are arranged oppositely, the first mounting plate is provided with a first insertion hole matched with the rotating shaft, the second mounting plate is correspondingly provided with a second insertion hole matched with the rotating shaft, and the detection piece is rotatably connected to the base through the rotating shaft.

In one embodiment, the material level detection device further comprises an adjusting plate, the adjusting plate is correspondingly arranged at the mounting hole of the base, and the adjusting plate can move along with the detection piece.

In one embodiment, the adjusting plate is provided with a first sliding hole and a second sliding hole, respectively, the first mounting plate is disposed in the first sliding hole, and the second mounting plate is disposed in the second sliding hole.

In one embodiment, the level detecting device further comprises a processing unit coupled with the proximity switch, and the processing unit can detect high and low level according to the sensing signal of the proximity switch.

In one embodiment, the level detecting device further comprises a transmitting unit coupled with the processing unit, and the processing unit is used for transmitting the sensing signal of the proximity switch to the feeding mechanism.

The utility model provides a funnel, includes the funnel body and foretell material level detection device, the base install in the lateral wall of the funnel body, detection piece one end is located in the funnel body, the other end of detection piece is located outside the funnel body.

The funnel has at least the following advantages:

above-mentioned scheme provides a funnel, installs material level detection device in the lateral wall of funnel body, and the one end of detection piece is located the funnel body, and the other end of detection piece is located outside the funnel body. When the material in the funnel body is higher than the height of the detection piece, one end of the detection piece, which is positioned in the funnel body, is pressed to the bottom of the funnel body under the action of the gravity of the material. According to the lever principle, one end of the detection piece, which is positioned outside the funnel body, is lifted, so that the proximity switch can sense the detection piece and indicate that the material in the funnel body is higher than the height of the detection piece. In the feeding process, the material in the funnel body gradually falls, when the material in the funnel body is lower than the height of the detection piece, under the action of the weight piece, one end of the detection piece, which is positioned outside the funnel body, is pressed to the bottom of the funnel body, so that the proximity switch cannot sense the detection piece, and the material in the funnel body is lower than the height of the detection piece. This scheme is under detection piece, counter weight and proximity switch's combined action, whether senses this detection piece through proximity switch and detects with the height to the internal material of funnel, simple structure easily makes the installation.

In one embodiment, the material level detection device is arranged at a position of the funnel body close to the bottom;

or the material level detection device is arranged at the position, close to the top, of the funnel body.

The utility model provides a tippler, includes tippler body and foretell funnel, the funnel is located tippler body.

The car dumper at least has the following advantages:

above-mentioned scheme provides a tipper, installs material level detection device in the lateral wall of funnel body, and the one end that detects the piece is located the funnel body, and the other end that detects the piece is located outside the funnel body. When the material in the funnel body is higher than the height of the detection piece, one end of the detection piece, which is positioned in the funnel body, is pressed to the bottom of the funnel body under the action of the gravity of the material. According to the lever principle, one end of the detection piece, which is positioned outside the funnel body, is lifted, so that the proximity switch can sense the detection piece and indicate that the material in the funnel body is higher than the height of the detection piece. In the feeding process, the material in the funnel body gradually falls, when the material in the funnel body is lower than the height of the detection piece, under the action of the weight piece, one end of the detection piece, which is positioned outside the funnel body, is pressed to the bottom of the funnel body, so that the proximity switch cannot sense the detection piece, and the material in the funnel body is lower than the height of the detection piece. This scheme is under detection piece, counter weight and proximity switch's combined action, whether senses this detection piece through proximity switch and detects with the height to the internal material of funnel, simple structure easily makes the installation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a level detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a base of the level detecting device shown in FIG. 1;

FIG. 3 is a side view of an adjustment plate of the level sensing device shown in FIG. 1;

FIG. 4 is a schematic diagram of the operation of the level detecting device according to the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a funnel according to an embodiment of the present invention;

figure 6 is a side view of the funnel shown in figure 5.

Description of reference numerals:

10. the automatic feeding device comprises a base, 11, a bottom plate, 111, a mounting hole, 12, a mounting assembly, 121, a first mounting plate, 1211, a first jack, 122, a second mounting plate, 1221, a second jack, 123, a rotating shaft, 20, a detection piece, 30, a counterweight piece, 40, a proximity switch, 50, an adjusting plate, 51, a first sliding hole, 52, a second sliding hole, 60, a funnel body, 70, a processing unit, 80, a sending unit, 90 and a feeding mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1, 2 and 6, the level detecting device in one embodiment includes a base 10, a detecting member 20, a weight member 30 and a proximity switch 40. The base 10 is provided with a mounting hole 111, and the base 10 is used for being mounted on the side wall of the funnel body 60. The detecting element 20 is inserted into the mounting hole 111 and rotatably connected to the base 10, one end of the detecting element 20 is disposed inside the funnel 60, and the other end of the detecting element 20 is disposed outside the funnel 60. The weight member 30 is used to be disposed at one end of the detecting member 20 located outside the funnel body 60. The detecting member 20 moves to a detection range of the proximity switch 40, and the proximity switch 40 can sense the detecting member 20.

In the material level detecting device, the material level detecting device is mounted on the side wall of the funnel body 60, one end of the detecting piece 20 is positioned in the funnel body 60, and the other end of the detecting piece 20 is positioned outside the funnel body 60. When the material in the funnel 60 is higher than the height of the detecting element 20, the end of the detecting element 20 in the funnel 60 is pressed to the bottom of the funnel 60 under the gravity of the material. According to the lever principle, the end of the detecting member 20 located outside the funnel body 60 is lifted, so that the proximity switch 40 can sense the detecting member 20, and the material in the funnel body 60 is higher than the detecting member 20. During the feeding process, the material in the funnel body 60 gradually falls, and when the material in the funnel body 60 is lower than the height of the detecting member 20, the end of the detecting member 20 located outside the funnel body 60 is pressed to the bottom of the funnel body 60 under the action of the weight member 30, so that the proximity switch 40 cannot sense the detecting member 20, which indicates that the material in the funnel body 60 is lower than the height of the detecting member 20. Under the combined action of the detection piece 20, the balance weight and the proximity switch 40, the detection piece 20 is sensed through the proximity switch 40 to detect the height of the material in the funnel body 60, the structure is simple, and the manufacture and installation are easy.

It should be noted that the level detecting device can be installed at a position near the bottom of the funnel body 60. According to the detection demand, install material level detection device in the bottom of funnel body 60, can carry out low level to the material in the funnel body 60 like this and detect, avoid the interior material of funnel body 60 too little to lead to the material in the tipper directly to fall to the feed mechanism 90 of funnel body 60 below to reduce the impact force that feed mechanism 90 received, prolong feed mechanism 90's life. Of course, the material level detection device can also be installed at the position, close to the top, of the funnel body 60, and the material level detection device is installed at the top of the funnel body 60, so that the high-level detection can be carried out on the material in the funnel body 60, the material touch between the tipper and the funnel body 60 caused by more material in the funnel body 60 is avoided, the damage of the tipper is reduced, and the service life of the tipper is prolonged.

In one embodiment, referring to fig. 1 and 6, the detecting member 20 is a detecting rod. One end of the detection rod is arranged in the funnel body 60, the other end of the detection rod is arranged outside the funnel body 60, and the proximity switch 40 senses the detection rod to detect the height of the material in the funnel body 60, so that the structure is simple, and the manufacturing and installation are easy.

It should be noted that the detecting member 20 should be made of a material that can be detected by the proximity switch 40. In addition, the detecting member 20 should have a certain hardness, such as a stainless steel detecting member 20, a low carbon steel detecting member 20, etc., so as to prevent the detecting member 20 from being bent under the action of the material and the weight member 30, improve the detecting accuracy, and reduce the material cost and the time cost for replacing the detecting member 20.

In one embodiment, referring to fig. 1 and 6, the proximity switch 40 is mounted to the base 10 and the proximity switch 40 is located outside the funnel 60. Specifically, when the detecting member 20 is in the equilibrium state, the proximity switch 40 is located above the detecting member 20. When the material in the funnel 60 is higher than the height of the detecting element 20, the end of the detecting element 20 in the funnel 60 is pressed to the bottom of the funnel 60 under the gravity of the material. According to the lever principle, the end of the detection piece 20, which is located outside the funnel body 60, is lifted, so that the proximity switch 40 can sense the detection piece 20, the proximity switch 40 sends the signal to the feeding mechanism 90, the feeding mechanism 90 increases the feeding amount, and the phenomenon that the tipper touches the material in the funnel body 60 due to more materials in the funnel body 60 is avoided, so that the damage of the tipper is reduced, and the service life of the tipper is prolonged. When the material in the funnel body 60 is lower than the height of the detecting element 20, under the action of the weight 30, the end of the detecting element 20 located outside the funnel body 60 is pressed to the bottom of the funnel body 60, so that the proximity switch 40 cannot sense the detecting element 20, the proximity switch 40 sends the signal to the feeding mechanism 90, the feeding mechanism 90 reduces the feeding amount, and the feeding mechanism 90 prevents the material in the rollover from directly falling to the lower part of the funnel body 60 due to too little material in the funnel body 60, so that the impact force on the feeding mechanism 90 is reduced, and the service life of the feeding mechanism 90 is prolonged. Of course, in other embodiments, the proximity switch 40 may be located below the sensing member 20 when the sensing member 20 is in the equilibrium state; alternatively, the proximity switch 40 is flush with the sensing member 20 when the sensing member 20 is in an equilibrium state.

Specifically, the proximity switch 40 may be one of an inductive proximity switch, a hall proximity switch, a capacitive proximity switch, and a microwave proximity switch. The proximity switch 40 is a contactless switch, has the characteristics of forming a switch and a microswitch, and has the characteristics of reliable action, stable performance, fast response, strong anti-interference capability, water resistance and corrosion resistance.

In one embodiment, referring to fig. 1, 2, 5 and 6, the base 10 includes a base plate 11 and a mounting assembly 12. The mounting assembly 12 includes a first mounting plate 121 and a second mounting plate 122, and the first mounting plate 121 and the second mounting plate 122 are disposed on the base plate 11 at intervals. Specifically, the bottom plate 11 is mounted on the outer side wall of the funnel body 60, the mounting hole 111 is formed in the bottom plate 11, and the first mounting plate 121 and the second mounting plate 122 are perpendicular to the bottom plate 11. The first mounting plate 121 and the second mounting plate 122 are provided to facilitate the rotatable mounting of the detecting member 20 to the base 10. In the present embodiment, the first mounting plate 121 and the second mounting plate 122 are disposed opposite to and spaced apart from the base plate 11, the mounting hole 111 is disposed in the base plate 11, and the mounting hole 111 is located at a position between the first mounting plate 121 and the second mounting plate 122; the first mounting plate 121 is integrally formed with the second mounting plate 122.

Further, referring to fig. 1, fig. 2 and fig. 6, the mounting assembly 12 further includes a rotating shaft 123, the first mounting plate 121 is provided with a first insertion hole 1211 matched with the rotating shaft 123, the second mounting plate 122 is correspondingly provided with a second insertion hole 1221 matched with the rotating shaft 123, and the detecting element 20 is rotatably mounted on the base 10 through the rotating shaft 123. Specifically, the first mounting plate 121 and the second mounting plate 122 are disposed opposite to each other, the first insertion hole 1211 is disposed on the first mounting plate 121, and the second insertion hole 1221 is correspondingly disposed on the second mounting plate 122. The detecting member 20 is rotatably mounted to the base 10 through the rotating shaft 123, and thus, the structure is simple and the manufacturing and mounting are easy. In the present embodiment, the rotation shaft 123 is a pin.

In one embodiment, referring to fig. 1, 3, 5 and 6, the material level detecting device further includes an adjusting plate 50, and the adjusting plate 50 is correspondingly disposed at the mounting hole 111 of the base 10. Specifically, the adjusting plate 50 is disposed on a side of the base 10 away from the funnel 60, or the adjusting plate 50 is disposed between the base 10 and the funnel 60. By arranging the adjusting plate 50 at the mounting hole 111 of the base 10, the adjusting plate 50 can play a role of sealing the mounting hole 111, and the material in the funnel body 60 is prevented from falling out of the mounting hole 111.

Further, referring to fig. 1, fig. 3 and fig. 6, the adjusting plate 50 is correspondingly provided with a first sliding hole 51 and a second sliding hole 52, the first mounting plate 121 is inserted into the first sliding hole 51, the second mounting plate 122 is inserted into the second sliding hole 52, and the adjusting plate 50 can move along with the detecting member 20. During material level detection, when the material in the funnel body 60 is higher than the height of the detection piece 20, one end of the detection piece 20, which is located in the funnel body 60, is pressed to the bottom of the funnel body 60, one end of the detection piece 20, which is located outside the funnel body 60, is lifted, meanwhile, the adjusting plate 50 moves to one side close to the top of the funnel body 60, the adjusting plate 50 can play a role in sealing the mounting hole 111, and the material in the funnel body 60 is prevented from falling out of the mounting hole 111. When the material in the funnel body 60 is lower than the height of the detecting element 20, under the action of the weight element 30, the end of the detecting element 20 located outside the funnel body 60 is pressed towards the bottom of the funnel body 60, and the adjusting plate 50 moves towards the side close to the bottom of the funnel body 60, so that the adjusting plate 50 can play a role in sealing the mounting hole 111, and the material in the funnel body 60 is prevented from falling out of the mounting hole 111.

In one embodiment, referring to fig. 1, 4 and 6, the material level detecting device further includes a processing unit 70, the processing unit 70 is coupled to the proximity switch 40, and the processing unit 70 can detect the material level in the funnel body 60 according to the sensing signal of the proximity switch 40. Since the processing unit 70 is coupled to the proximity switch 40, the processing unit 70 can determine the material level according to the received sensing signal.

Further, referring to fig. 1, 4 and 6, the level detecting device further includes a transmitting unit 80, the transmitting unit 80 is coupled to the processing unit 70, and the processing unit 70 is configured to transmit the sensing signal received by the proximity switch 40 to the feeding mechanism 90. Specifically, when the material in the funnel 60 is higher than the height of the detecting member 20, the end of the detecting member 20 in the funnel 60 is pressed to the bottom of the funnel 60 by the gravity of the material. According to the lever principle, the end of the detecting member 20 located outside the funnel body 60 is lifted so that the proximity switch 40 can sense the detecting member 20. The signal is sent to the feeding mechanism 90 through the sending unit 80, the feeding amount of the feeding mechanism 90 is increased, and the phenomenon that the tippler touches the material in the funnel body 60 due to more materials in the funnel body 60 is avoided, so that the damage of the tippler is reduced, and the service life of the tippler is prolonged. When the material in the funnel 60 is lower than the height of the detecting member 20, the end of the detecting member 20 located outside the funnel 60 is pressed to the bottom of the funnel 60 by the weight member 30, so that the detecting member 20 cannot be sensed by the proximity switch 40. The sensing signal of the proximity switch 40 is sent to the feeding mechanism 90 through the sending unit 80, the feeding mechanism 90 reduces the feeding amount, and the feeding mechanism 90 prevents the material in the tipper from directly falling to the feeding mechanism 90 below the hopper body 60 due to too little material in the hopper body 60, so that the impact force on the feeding mechanism 90 is reduced, and the service life of the feeding mechanism 90 is prolonged. Of course, the sending unit 80 may also send the sensing signal of the proximity switch 40 to the car dumper and control the car dumper to start and stop.

A funnel, please refer to fig. 1 to 6, comprising a funnel body 60 and the material level detecting device of any of the above embodiments. The base 10 is installed on the side wall of the funnel body 60, one end of the detecting element 20 is arranged in the funnel body 60, and the other end of the detecting element 20 is arranged outside the funnel body 60.

In the funnel, the material level detecting device is mounted on the side wall of the funnel body 60, one end of the detecting piece 20 is positioned in the funnel body 60, and the other end of the detecting piece 20 is positioned outside the funnel body 60. When the material in the funnel 60 is higher than the height of the detecting element 20, the end of the detecting element 20 in the funnel 60 is pressed to the bottom of the funnel 60 under the gravity of the material. According to the lever principle, the end of the detecting member 20 located outside the funnel body 60 is lifted, so that the proximity switch 40 can sense the detecting member 20, and the material in the funnel body 60 is higher than the detecting member 20. During the feeding process, the material in the funnel body 60 gradually falls, and when the material in the funnel body 60 is lower than the height of the detecting member 20, the end of the detecting member 20 located outside the funnel body 60 is pressed to the bottom of the funnel body 60 under the action of the weight member 30, so that the proximity switch 40 cannot sense the detecting member 20, which indicates that the material in the funnel body 60 is lower than the height of the detecting member 20. Under the combined action of the detection piece 20, the balance weight and the proximity switch 40, the detection piece 20 is sensed through the proximity switch 40 to detect the height of the material in the funnel body 60, the structure is simple, and the manufacture and installation are easy.

In one embodiment, the level sensing device is mounted to the funnel 60 near the bottom. According to the detection demand, install material level detection device in the bottom of funnel body 60, can carry out low level to the material in the funnel body 60 like this and detect, avoid the interior material of funnel body 60 too little to lead to the material in the tipper directly to fall to the feed mechanism 90 of funnel body 60 below to reduce the impact force that feed mechanism 90 received, prolong feed mechanism 90's life.

In another embodiment, the material level detection device is installed at a position of the funnel body 60 close to the top, and the material level detection device is installed at the top of the funnel body 60, so that high-level detection can be performed on the material in the funnel body 60, and the phenomenon that the tipper touches the material in the funnel body 60 due to more material in the funnel body 60 is avoided, so that the damage of the tipper is reduced, and the service life of the tipper is prolonged.

A car dumper with reference to fig. 1 to 6 includes a car dumper body and a hopper of any of the above embodiments, the hopper being disposed on the car dumper body.

In the car dumper, the material level detection device is installed on the side wall of the funnel body 60, one end of the detection piece 20 is located in the funnel body 60, and the other end of the detection piece 20 is located outside the funnel body 60. When the material in the funnel 60 is higher than the height of the detecting element 20, the end of the detecting element 20 in the funnel 60 is pressed to the bottom of the funnel 60 under the gravity of the material. According to the lever principle, the end of the detecting member 20 located outside the funnel body 60 is lifted, so that the proximity switch 40 can sense the detecting member 20, and the material in the funnel body 60 is higher than the detecting member 20. During the feeding process, the material in the funnel body 60 gradually falls, and when the material in the funnel body 60 is lower than the height of the detecting member 20, the end of the detecting member 20 located outside the funnel body 60 is pressed to the bottom of the funnel body 60 under the action of the weight member 30, so that the proximity switch 40 cannot sense the detecting member 20, which indicates that the material in the funnel body 60 is lower than the height of the detecting member 20. Under the combined action of the detection piece 20, the balance weight and the proximity switch 40, the detection piece 20 is sensed through the proximity switch 40 to detect the height of the material in the funnel body 60, the structure is simple, and the manufacture and installation are easy.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A level detection device, comprising:

the base is provided with a mounting hole and is used for being mounted on the side wall of the funnel body; the base comprises a bottom plate and a mounting assembly, the mounting assembly comprises a first mounting plate and a second mounting plate, and the first mounting plate and the second mounting plate are arranged on the bottom plate at intervals;

the detection piece penetrates through the mounting hole and is rotatably connected with the first mounting plate and the second mounting plate of the base, one end of the detection piece is arranged in the funnel body, and the other end of the detection piece is arranged outside the funnel body;

the counterweight is arranged at one end of the detection part, which is positioned outside the funnel body;

the detection piece moves to the detection range of the proximity switch, and the proximity switch can sense the detection piece; and

the adjusting plate, the adjusting plate correspondence is equipped with first slide opening and second slide opening, first mounting panel is located first slide opening, the second mounting panel is located the second slide opening, the adjusting plate can be followed the detection piece removes, in order to seal the mounting hole.

2. The material level detecting device as claimed in claim 1, wherein the adjusting plate is arranged on a side of the base away from the funnel body, or the adjusting plate is arranged between the base and the funnel body.

3. The material level detecting device according to claim 1, wherein the mounting assembly further comprises a rotating shaft, the first mounting plate is disposed opposite to the second mounting plate, the first mounting plate is provided with a first insertion hole matched with the rotating shaft, the second mounting plate is correspondingly provided with a second insertion hole matched with the rotating shaft, and the detecting member is rotatably connected to the base through the rotating shaft.

4. The level detecting device of claim 1, wherein the proximity switch is mounted to the base and is adapted to be disposed outside the funnel; when the detection piece is in a balanced state, the proximity switch is positioned above the detection piece.

5. The level detecting device of claim 1, wherein the proximity switch is at least one of an inductive proximity switch, a hall proximity switch, a capacitive proximity switch, and a microwave proximity switch.

6. The level detecting device according to any one of claims 1 to 5, further comprising a processing unit coupled to the proximity switch, the processing unit being capable of detecting a high or low level of a material based on a sensing signal of the proximity switch.

7. The level detecting device of claim 6, further comprising a transmitting unit coupled to the processing unit, the processing unit configured to transmit the sensing signal of the proximity switch to a feeding mechanism.

8. A funnel, characterized in that, includes funnel body and the material level detection device of any one of claims 1 to 7, the base is installed in the lateral wall of the funnel body, one end of the detection piece is located in the funnel body, the other end of the detection piece is located outside the funnel body.

9. The hopper as claimed in claim 8, wherein said level detecting means is provided at a position of said hopper body near the bottom;

or the material level detection device is arranged at the position, close to the top, of the funnel body.

10. A car dumper, characterized by comprising a car dumper body and the funnel of claim 8, wherein the funnel is arranged on the car dumper body.

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