Mechanical external anti-blocking device

Abstract

The utility model relates to a mechanical external material blocking prevention device which comprises a device shell, a rotating shaft, a material blocking induction plate, a swing arm and a sensor. The device shell is arranged on the outer side wall of a material articulated chute in a buckled mode and communicated with the material articulated chute through an opening in the side face of the outer side wall of the material articulated chute. The rotating shaft is horizontally arranged in the device shell, one end of the rotating shaft extends out of the device shell, the material blocking sensing plate is vertically arranged in the device shell, the top end of the material blocking sensing plate is fixedly connected with the rotating shaft, the bottom end of the material blocking sensing plate extends downwards to make contact with materials accumulated in the material chute, and the swing arm is fixedly connected with the extending end of the rotating shaft and further used for rotating along with the rotating shaft. The sensor is arranged over the other end of the swing arm and used for detecting the rotation angle of the swing arm. When materials are accumulated to the position of the material blocking sensing plate, the material blocking sensing plate is extruded to rotate inwards, the swing arm is lifted upwards, and when the lifting position enters the position of the sensor, the equipment gives an alarm and stops, is not affected by dust, and is small in fault risk, easy to maintain and high in reusability.

Description

Technical Field

[0001] The utility model belongs to the field of material conveying auxiliary equipment, and in particular relates to a mechanical external material blocking prevention device. Background Art

[0002] In industrial production, blockage of production equipment may lead to production interruption, equipment damage, and even safety risks. Therefore, many conveying equipment or bulk material processing equipment require a device at the outlet to detect and respond to material blockage in time to improve production efficiency and protect equipment.

[0003] In order to solve the above-mentioned problems, proximity sensors are generally used to monitor the flow of materials. When the material passes normally, the infrared beam can be continuously detected by the sensor. Once a blockage occurs, the beam is blocked and the sensor sends an alarm signal. This sensor directly senses the internal material through a mirror installed on the equipment housing to realize the blockage alarm function. However, due to the large amount of dust in grain production and processing, dust often covers the visible area, causing false alarms or failure of the proximity switch. Utility Model Content

[0004] The utility model provides a mechanical external anti-blocking device to solve the technical problem that the dust in grain production and processing is large and the dust often covers the visible area, causing false alarm or failure of the proximity opening.

[0005] In order to solve the above problems, the mechanical external anti-blocking device provided by the utility model adopts the following technical solutions:

[0006] A mechanical external anti-blocking device, comprising:

[0007] The device housing is buckled on the outer side wall of the material chute and communicates with the material chute through an opening on the side of the outer side wall of the material chute;

[0008] A rotating shaft is horizontally arranged inside the device housing and one end of the rotating shaft extends out of the device housing;

[0009] A material blocking induction plate is vertically arranged inside the device housing and the top end is fixedly connected to the rotating shaft, and the bottom end of the material blocking induction plate extends downward to contact the material accumulated inside the material chute;

[0010] A swing arm, one end of which is fixedly connected to the protruding end of the rotating shaft and is used to rotate with the rotating shaft;

[0011] The sensor is arranged just above the other end of the swing arm and is used to detect the rotation angle of the swing arm.

[0012] The above-mentioned mechanical external anti-blocking material device, wherein, further comprises a mounting bracket, wherein the mounting bracket is arranged on the device housing and is used for mounting the sensor.

[0013] The above-mentioned mechanical external anti-blocking device, among other things, further includes a stop screw, thereby detachably fixing the rotating shaft to the top end of the blocking sensing plate.

[0014] The above-mentioned mechanical external anti-blocking device, among other things, further includes a nylon seat, which is fixedly arranged on the outer side wall of the device housing, and the protruding end of the rotating shaft passes through the nylon seat so that the rotating shaft is rotatably connected to the nylon seat.

[0015] The above-mentioned mechanical external anti-blocking device, wherein the bottom of the blocking sensing plate extends downward and obliquely toward the opening.

[0016] The above-mentioned mechanical external anti-blocking device, wherein the rotating shaft is horizontally arranged with both ends extending forward and backward, and the swing arm is horizontally arranged with both ends extending left and right, so that the axis of the rotating shaft is perpendicular to the plate surface of the swing arm.

[0017] The above-mentioned mechanical external anti-blocking device, wherein the protruding end of the rotating shaft is fixedly connected to the left end of the swing arm by bolts.

[0018] The above-mentioned mechanical external anti-blocking device, wherein the side surface of the bottom of the device shell extends downwardly and obliquely toward the opening.

[0019] The beneficial effect is: when the material accumulates to the position of the blockage sensing plate, the blockage sensing plate is squeezed and rotated inward, and the swing arm is lifted upward. When the lifting position enters the sensor position, the equipment alarms and shuts down. It will not be affected by dust, has a low risk of failure, is easy to maintain, and has high reusability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0021] Figure 1 This is a partial cross-sectional view of a mechanical external anti-blocking device of the utility model;

[0022] Figure 2 The utility model is a structural diagram of a mechanical external anti-blocking device.

[0023] Description of reference numerals:

[0024] 1. Device housing; 11. Inclined surface; 2. Material chute; 3. Rotating shaft; 4. Blockage sensing plate; 5. Swing arm; 6. Sensor; 7. Mounting bracket; 8. Braking screw; 9. Nylon seat; 10. Screw. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0027] refer to Figure 1 The utility model discloses a mechanical external anti-blocking device, comprising: a device housing 1, a rotating shaft 3, a blocking induction plate 4, a swing arm 5, a mounting bracket 7 and a sensor 6. The left side of the device housing 1 is provided with an opening and is sealed on the right side wall of the material chute 2. The right side wall of the material chute 2 is provided with an opening, so as to communicate with the interior of the device housing 1. The interior of the material chute 2 is used for flowing grain materials. The blocking induction plate 4 is a thin plate with an "L"-shaped vertical cross section. The blocking induction plate 4 is arranged inside the device housing 1, and the top of the blocking induction plate 4 is fixedly connected with the rotating shaft 3 through a brake screw 8. The rotating shaft 3 is horizontally arranged inside the device housing 1, and the front end of the rotating shaft 3 extends from the inside of the device housing 1. When the internal material of the material chute 2 is accumulated to a certain height, that is, when the material contacts the bottom of the blocking induction plate 4, the blocking induction plate 4 is squeezed and deformed, so that the blocking induction plate 4 drives the rotating shaft 3 to rotate.

[0028] Further, refer to Figure 2 The mounting bracket 7 is fixedly mounted on the outer side of the device housing 1 by screws, and the sensor 6 is fixedly mounted on the mounting bracket 7. The sensor 6 can be an angle sensor. The nylon seat 9 is fixedly mounted on the side wall of the material chute 2 by screws. The end of the rotating shaft 3 extends out from the inside of the device housing 1 and passes through the nylon seat 9 to be rotatably connected with the nylon seat 9. The swing arm 5 is horizontally arranged and the left end of the swing arm 5 is fixedly connected to the extended end of the rotating shaft 3 by screws 10. The right end of the swing arm 5 is located directly below the sensor 6. When the rotating shaft 3 rotates, the rotating shaft 3 drives the right end of the swing arm 5 to swing upward. The sensor 6 detects the swing angle of the swing arm 5 in real time. When the swing of the right end of the swing arm 5 approaches the set position, the equipment alarms and stops, and cleans the materials accumulated inside the material chute 2.

[0029] The working process of the utility model is as follows: when the material accumulates to a certain height inside the material chute 2, it will flow into the inside of the device shell 1. When the accumulated material contacts the blocking induction plate 4, the blocking induction plate 4 bends and deforms upward. Since the top of the blocking induction plate 4 is fixed to the rotating shaft 3, the blocking induction plate 4 drives the rotating shaft 3 to rotate. While the rotating shaft 3 rotates, it drives the swing arm 5 to swing upward. The sensor 6 detects the upward swing angle of the swing arm 5 in real time. When the swing angle of the swing arm 5 exceeds the set angle value, the equipment alarms and shuts down, and promptly handles the material accumulated inside the material chute 2.

[0030] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0031] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A mechanical external anti-blocking device, characterized in that: include: The device housing is buckled on the outer side wall of the material chute and communicates with the material chute through an opening on the side of the outer side wall of the material chute; A rotating shaft is horizontally arranged inside the device housing and one end of the rotating shaft extends out of the device housing; A material blocking induction plate is vertically arranged inside the device housing and the top end is fixedly connected to the rotating shaft, and the bottom end of the material blocking induction plate extends downward to contact the material accumulated inside the material chute; A swing arm, one end of which is fixedly connected to the protruding end of the rotating shaft and is used to rotate with the rotating shaft; The sensor is arranged just above the other end of the swing arm and is used to detect the rotation angle of the swing arm.

2. The mechanical external anti-blocking device according to claim 1 is characterized in that: Also included is a mounting bracket, which is disposed on the device housing and is used to mount the sensor.

3. The mechanical external anti-blocking device according to claim 2 is characterized in that: It also includes a stop screw, which detachably fixes the rotating shaft to the top of the material blocking induction plate.

4. The mechanical external anti-blocking device according to claim 1, characterized in that: It also includes a nylon seat, which is fixedly arranged on the outer side wall of the device shell, and the protruding end of the rotating shaft passes through the nylon seat so that the rotating shaft is rotatably connected with the nylon seat.

5. The mechanical external anti-blocking device according to claim 1 is characterized in that: The bottom of the material blocking induction plate extends obliquely downward and toward the opening.

6. The mechanical external anti-blocking device according to claim 1, characterized in that: The rotating shaft is horizontally arranged with both ends extending forward and backward, and the swing arm is horizontally arranged with both ends extending left and right, so that the axis of the rotating shaft is perpendicular to the plate surface of the swing arm.

7. The mechanical external anti-blocking device according to claim 6 is characterized in that: The extended end of the rotating shaft is fixedly connected to the left end of the swing arm by bolts.

8. The mechanical external anti-blocking device according to any one of claims 1 to 7, characterized in that: The side surface of the bottom of the device housing extends obliquely downward toward the opening.

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