Protection switch and belt conveyor
By installing the first pull assembly and the second pull assembly above the set safety height on the belt conveyor, the automatic and manual shutdown functions are realized, and the safety accident problem caused by the inability to automatically shut down in the prior art is solved, and the safety accidents caused by the inability to automatically shut down are improved. Safety performance of belt conveyors.
Patent Information
- Application Number
- CN202420260746.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing belt conveyor protection device cannot be shut down automatically, resulting in the inability to shut down quickly when people fall into the belt by mistake, which may cause accidents.
A protective switch is designed, including installing a first pulling assembly on the frame of a belt conveyor, which is higher than a set safety height, and is connected to the switch body, and automatically pulls the switch when the material or person touches the first pulling assembly. The body is shut down and provides a manual shutdown through the second pull assembly.
It effectively avoids safety accidents caused by people accidentally falling into the belt conveyor, improves the safety performance of the belt conveyor, and ensures that the machine can be shut down quickly in abnormal situations to prevent accidents such as mechanical injuries or suffocation.
Smart Images
Figure CN222158603U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of belt conveyor protection devices, in particular to a protection switch and a belt conveyor. Background Art
[0002] In the belt conveyor system, the protection device can effectively detect abnormalities in the material transportation process, such as belt deviation, slippage, tearing, etc., and can passively stop the machine when abnormalities are detected. The existing protection device requires manual shutdown, but once a person accidentally falls on the belt and no one around finds it, the machine cannot be shut down in a short time. This will cause people to be transported into the material warehouse by the belt, causing mechanical injuries or suffocation and other accidents. Utility Model Content
[0003] The embodiment of the utility model provides a protection switch and a belt conveyor to avoid injury accidents caused by personnel accidentally falling into the belt conveyor and being unable to stop the belt conveyor, and can greatly improve the safety performance of the belt conveyor.
[0004] Other features and advantages of the present invention will become apparent from the following detailed description or may be learned in part from the practice of the present invention.
[0005] According to a first aspect of an embodiment of the utility model, there is provided a protection switch, comprising: a switch body and a first pulling assembly;
[0006] The first pulling assembly is installed on the frame of the belt conveyor and is higher than a set safety height, where the set safety height refers to the highest height of the material transported on the conveyor belt when the belt conveyor is working;
[0007] The first pulling component is connected to the switch body, and when the first pulling component is pulled, the switch body is driven to be turned on / off.
[0008] In some embodiments of the present utility model, based on the above solution, the first pulling assembly includes: a first pulling rope and a supporting portion;
[0009] The support portion is disposed on a frame of the belt conveyor, the first pull rope is disposed on the support portion, and the first pull rope is higher than the set safety height.
[0010] In some embodiments of the present utility model, based on the above solution, the support portion includes: a first fixing bracket and a second fixing bracket;
[0011] The first fixing bracket and the second fixing bracket are longitudinally mounted on the frame of the belt conveyor and are respectively located on both sides of the conveyor belt;
[0012] One end of the first pull rope is connected to the top end of the first fixing bracket, and the other end of the first pull rope passes through the top end of the second fixing bracket and is connected to the switch body.
[0013] In some embodiments of the present invention, based on the above solution, a threading hole is formed at the top of the second fixing bracket.
[0014] In some embodiments of the present utility model, based on the above solution, it also includes a second pulling component;
[0015] The first pulling component is connected to the switch body through the second pulling component. When the first pulling component and / or the second pulling component is pulled, the switch body is driven to be opened / closed.
[0016] In some embodiments of the present utility model, based on the above solution, the second pulling assembly includes: a second pull rope and a guide ring;
[0017] The guide ring is installed on the frame of the belt conveyor, one end of the second pull rope is connected to the second pull rope, and the other end passes through the guide ring and is connected to the switch body.
[0018] In some embodiments of the present invention, based on the above solution, it further includes: a second pulling component;
[0019] The second pulling component is installed on the frame of the belt conveyor and is connected to the switch body. When the second pulling component is pulled, the switch body is driven to open / close.
[0020] In some embodiments of the present utility model, based on the above solution, the second pulling assembly includes: a fixed connection portion and a second pull rope;
[0021] The fixed connection part is arranged on the frame of the belt conveyor, one end of the second pull rope is connected to the fixed connection part, and the other end is connected to the switch body.
[0022] In some embodiments of the present utility model, based on the aforementioned solution, the fixed connection portion includes: a fixed bracket;
[0023] The fixed bracket is longitudinally mounted on the frame of the belt conveyor.
[0024] According to a second aspect of an embodiment of the utility model, a belt conveyor is provided, wherein the belt conveyor comprises the protection switch as described in the first aspect above.
[0025] The technical solution of the utility model can effectively avoid safety accidents caused by workers accidentally falling on the belt conveyor by arranging a first pulling component higher than the set safety height to control the opening / closing of the switch body.
[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0028] Figure 1 A schematic structural diagram of a protection switch according to an embodiment of the utility model is shown. DETAILED DESCRIPTION
[0029] The example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present invention will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art.
[0030] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present utility model. However, those skilled in the art will appreciate that the technical solution of the present utility model can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the present utility model.
[0031] It should be noted that the character “ / ” generally indicates that the previous and next associated objects are in an “or” relationship.
[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those shown or described.
[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0035] In order to solve the potential safety accidents existing in the belt conveyor in the prior art, the embodiment of the utility model provides a protection switch, which includes: a switch body and a first pulling component;
[0036] The first pulling assembly is installed on the frame of the belt conveyor and is higher than a set safety height, where the set safety height refers to the highest height of the material transported on the conveyor belt when the belt conveyor is working;
[0037] The first pulling component is connected to the switch body, and when the first pulling component is pulled, the switch body is driven to be turned on / off.
[0038] It is understandable that when the belt conveyor is working, the material is transported by the conveyor belt, and the transported material is lower than the set safety height. When there is a gas object higher than the material on the conveyor belt, it will touch the first pulling component and then pull the switch body.
[0039] The switch body can be connected in series as a normally closed point into the control system of the belt conveyor. When the switch body is pulled, the normally closed point becomes a normally open point, thereby shutting down the belt conveyor. After the fault is eliminated, the switch body is reset and the belt conveyor can continue to operate.
[0040] For example, the conveyor belt conveys the same batch of steel with the same thickness. The safety height is set to the thickness of the steel. The first pulling component is arranged across the frame of the belt conveyor along the vertical conveying direction of the conveyor belt. At this time, the first pulling component is located directly above the conveyor belt. When an object exceeding the thickness of the steel is transmitted on the conveyor belt, the first pulling component will be pulled, and the belt conveyor will be closed to stop conveying until the safety hazard is resolved.
[0041] In some feasible embodiments, based on the above technical solution, the first pulling assembly includes: a first pulling rope and a supporting part;
[0042] The support portion is disposed on a frame of the belt conveyor, the first pull rope is disposed on the support portion, and the first pull rope is higher than the set safety height.
[0043] It can be understood that the function of the support part is to provide a support point for the first pull rope to ensure that the first pull rope can be pulled by the object on the conveyor belt.
[0044] It is understandable that the first pull rope can be a plastic rope, because the plastic rope is easily deformed by force and is very sensitive to external force. Of course, the first pull rope can also be a steel wire rope, because the steel wire rope has the characteristics of wear resistance and corrosion resistance, which can ensure the durability of the first pull rope.
[0045] In some feasible embodiments, based on the above solution, the support portion includes: a first fixing bracket and a second fixing bracket;
[0046] The first fixing bracket and the second fixing bracket are longitudinally mounted on the frame of the belt conveyor and are respectively located on both sides of the conveyor belt;
[0047] One end of the first pull rope is connected to the top end of the first fixing bracket, and the other end of the first pull rope passes through the top end of the second fixing bracket and is connected to the switch body.
[0048] It can be understood that the height of the first fixing bracket and the second fixing bracket is at least higher than the set safety height to ensure that the first pull rope arranged at the top of the first fixing bracket and the second fixing bracket is higher than the set safety height.
[0049] For example, see Figure 1 , shows a schematic structural diagram of a protection switch according to an embodiment of the utility model.
[0050] like Figure 1 As shown, the protection switch includes a first fixing bracket 1, a second fixing bracket 2, a first pull rope 3 and a switch body 4.
[0051] Among them, the first fixed bracket 1 and the second fixed bracket 2 are longitudinally arranged on the frame of the belt conveyor and are respectively located on both sides of the conveyor belt. One end of the first pull rope 3 is connected to the top of the first fixed bracket 1, and then passes through the top of the second fixed bracket 2, and the other end is connected to the switch body 4. When an object exceeding the height of the first pull rope 3 is transmitted on the conveyor belt, the first pull rope 3 is pulled, and then the switch body 4 is driven to open / close. The switch body 4 is connected to the control system of the belt conveyor as a normally closed point or a normally open point, and the belt conveyor can be controlled by pulling the switch body 4. Exemplarily, the switch body 4 is connected to the control system of the belt conveyor as a normally closed point, and the first pull rope 3 pulls the switch body 4, the normally closed point becomes a normally open point, and the belt conveyor stops.
[0052] In some feasible embodiments, based on the above solution, a second pulling component is further included;
[0053] The first pulling component is connected to the switch body through the second pulling component. When the first pulling component and / or the second pulling component is pulled, the switch body is driven to be opened / closed.
[0054] It can be understood that the first pulling component is used to passively trigger the pull-stop switch body when an object higher than the set safety height enters the conveyor belt by mistake, so as to prevent production accidents; the second pulling component is used to actively pull the switch body when the staff finds an unexpected situation on the conveyor belt, so as to prevent production accidents. The first pulling component and the second pulling component are set in the protection switch to effectively ensure the safety performance of the belt conveyor.
[0055] In some feasible embodiments, based on the above solution, the second pulling assembly includes: a second pulling rope and a guide ring;
[0056] The guide ring is installed on the frame of the belt conveyor, one end of the second pull rope is connected to the second pull rope, and the other end passes through the guide ring and is connected to the switch body.
[0057] It is understandable that the second pull rope can be a plastic rope, because the plastic rope is easily deformed by force and is very sensitive to external force. Of course, the second pull rope can also be a steel wire rope, because the steel wire rope has the characteristics of wear resistance and corrosion resistance, which can ensure the durability of the first pull rope.
[0058] For example, Figure 1 As shown, one end of the second pull rope 5 is connected to the first pull rope 3 on the first fixed bracket 1, and the other end passes through the guide ring and then folds to connect to the switch body 4. After the second pull rope 5 and the first pull rope 3 are connected, the two can be regarded as a whole, that is, no matter which part is pulled, the main switch 4 can be driven to turn on / off. The second pull rope 5 is located on one side of the conveyor belt frame, which is convenient for the staff to pull and stop the conveyor belt when an abnormal situation is found.
[0059] In some feasible embodiments, based on the above solution, it further includes: a second pulling component;
[0060] The second pulling component is installed on the frame of the belt conveyor and is connected to the switch body. When the second pulling component is pulled, the switch body is driven to open / close.
[0061] It can be understood that, in this embodiment, the second pulling assembly is independently installed on the frame of the belt conveyor and is not connected to the first pulling assembly.
[0062] In some feasible embodiments, based on the above solution, the second pulling assembly includes: a fixed connection portion and a second pulling rope;
[0063] The fixed connection part is arranged on the frame of the belt conveyor, one end of the second pull rope is connected to the fixed connection part, and the other end is connected to the switch body.
[0064] It can be understood that the fixed connection portion is used to fix the second pull rope to ensure that the second pull rope can effectively pull the switch body when affected by external force.
[0065] Exemplarily, the fixed connection portion may be Figure 1 In the first fixing bracket shown in FIG, one end of the second pull rope is directly fixed on the first fixing bracket, and the other end is directly connected to the switch body.
[0066] Of course, in order to ensure that the second pulling assembly has enough hand-pulling space, the lateral distance between the switch body and the fixed connection part should be as far as possible, so that the second pull rope is set long enough. When the belt conveyor needs to be manually stopped, the staff can pull the second pull rope to stop it in time and conveniently.
[0067] As another aspect of the present invention, an embodiment of the present invention further provides a belt conveyor, wherein the belt conveyor includes the protection switch as described in the above embodiment.
[0068] It should be noted that in actual application, a protective switch can be set on both sides of the conveyor belt. This can ensure that when the staff finds that the conveyor belt is abnormal, they can pull the switch to stop it in time.
[0069] When a protection switch is installed on each side of the conveyor belt, the two protection switches can share the same first pulling component, for example, Figure 1 The first pull 3 above the conveyor belt passes through the first fixed bracket and the second fixed bracket respectively and is connected to the switch body arranged on both sides of the conveyor belt.
[0070] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims
1. A protection switch, characterized in that: include: a switch body and a first pull assembly; The first pulling assembly is installed on the frame of the belt conveyor and is higher than a set safety height, where the set safety height refers to the highest height of the material transported on the conveyor belt when the belt conveyor is working; The first pulling component is connected to the switch body, and when the first pulling component is pulled, the switch body is driven to open / close; The first pulling assembly includes: a first pulling rope and a supporting portion; The support portion is arranged on the frame of the belt conveyor, the first pull rope is arranged on the support portion, and the first pull rope is higher than the set safety height; The support portion includes: a first fixing bracket and a second fixing bracket; The first fixing bracket and the second fixing bracket are longitudinally mounted on the frame of the belt conveyor and are respectively located on both sides of the conveyor belt; One end of the first pull rope is connected to the top end of the first fixing bracket, and the other end of the first pull rope passes through the top end of the second fixing bracket and is connected to the switch body.
2. The protection switch according to claim 1, characterized in that: A threading hole is formed at the top of the second fixing bracket.
3. The protection switch according to claim 1, characterized in that: Also included is a second pulling assembly; The first pulling component is connected to the switch body through the second pulling component. When the first pulling component and / or the second pulling component is pulled, the switch body is driven to be opened / closed.
4. The protection switch according to claim 3, characterized in that: The second pulling assembly includes: a second pull rope and a guide ring; The guide ring is installed on the frame of the belt conveyor, one end of the second pull rope is connected to the second pull rope, and the other end passes through the guide ring and is connected to the switch body.
5. The protection switch according to claim 1, characterized in that: Also includes: a second pulling assembly; The second pulling component is installed on the frame of the belt conveyor and is connected to the switch body. When the second pulling component is pulled, the switch body is driven to open / close.
6. The protection switch according to claim 5, characterized in that: The second pulling assembly includes: a fixed connection portion and a second pull rope; The fixed connection part is arranged on the frame of the belt conveyor, one end of the second pull rope is connected to the fixed connection part, and the other end is connected to the switch body.
7. The protection switch according to claim 6, characterized in that: The fixed connection part includes: a fixed bracket; The fixed bracket is longitudinally mounted on the frame of the belt conveyor.
8. A belt conveyor, characterized in that: The belt conveyor comprises the protection switch according to any one of claims 1-7.