Guard rail device for a chain conveyor

Abstract

The utility model relates to a kind of guardrail devices of chain plate machine, including guardrail upright, guardrail pipe and drive mechanism;The top of the guardrail upright is fixedly connected with lug, the lug top is fixedly connected with rotary seat by locking member;The top of the rotary seat is fixedly connected with sleeve pipe, the guardrail pipe is set in the sleeve pipe, the both sides of the sleeve pipe are fixedly connected with threaded seat;Fastening bolt is threadedly connected on the threaded seat, one end of the fastening bolt extends into the sleeve pipe, and the outer periphery of the guardrail pipe is abutted;The guardrail upright includes multistage telescopic pipe, and the telescopic pipe between multistage is mutually nested;The drive mechanism is set on the outer wall of the guardrail upright, and the drive mechanism is used to drive multistage telescopic pipe to be telescopic.

Description

Technical Field

[0001] This utility model relates to the technical field of protective equipment for chain conveyors, specifically to a guardrail device for chain conveyors. Background Technology

[0002] In industrial production, chain conveyors are commonly used material conveying equipment, and guardrails need to be installed during their operation to ensure the safety of operators.

[0003] Traditional chain conveyor guardrail steel pipe structures require frequent loading and unloading of materials, so the steel pipes are usually movably installed on the guardrail base, making it impossible to completely weld the steel pipes in place. However, during the material feeding process, the conveyor trolley frequently bumps into the steel pipes, which can easily cause them to fall off, resulting in relatively poor stability and certain safety hazards. At the same time, the angles of traditional guardrail steel pipe structures are mostly fixed and cannot be adjusted. When the type of material being conveyed or the conveying height of the chain conveyor changes, the existing guardrail structure often cannot adapt flexibly and needs to be completely disassembled and replaced. This not only increases the difficulty of operation and maintenance costs but also affects production efficiency. Utility Model Content

[0004] Therefore, a guardrail device for chain conveyor is needed to solve the problem of traditional chain conveyor guardrail steel pipe structure. The steel pipe is usually movably installed on the guardrail seat, and it is impossible to completely weld the steel pipe, which can easily cause the steel pipe to fall off. The stability is relatively poor and there are certain safety hazards. At the same time, the angle of the traditional guardrail steel pipe structure is mostly fixed and cannot be adjusted, which not only increases the difficulty of operation and maintenance costs, but also affects the technical problem of production efficiency.

[0005] To achieve the above objectives, the inventors provide a guardrail device for a chain conveyor, including guardrail posts, guardrail tubes, and a drive mechanism.

[0006] The top of the guardrail post is fixedly connected to a protrusion, and the top of the protrusion is fixedly connected to a rotating seat by a locking device.

[0007] A sleeve is fixedly connected to the top of the rotating seat, the guardrail tube is set inside the sleeve, and threaded seats are fixedly connected to both sides of the sleeve.

[0008] The threaded seat is threaded with a fastening bolt, one end of which extends into the sleeve and abuts against the outer periphery of the guardrail tube.

[0009] The guardrail post includes multiple telescopic tubes, and the multiple telescopic tubes are nested together.

[0010] The drive mechanism is located on the outer wall of the guardrail post, and the drive mechanism is used to drive the multiple telescopic tubes to extend and retract.

[0011] As a preferred structure of this utility model, the bottom of the rotating seat is provided with an opening groove, and the rotating seat is engaged with the top of the protrusion through the opening groove.

[0012] As a preferred structure of this utility model, the locking member includes a locking screw and a fastening nut. The threaded end of the locking screw passes through the rotating seat and the protrusion in sequence and is threadedly connected to the fastening nut.

[0013] As a preferred structure of this utility model, a limiting groove is provided on one side of the rotating seat, and the fastening nut is embedded in the limiting groove.

[0014] As a preferred structure of this utility model, the guardrail device of the chain conveyor also includes multiple anti-slip components. The inner sidewall of the sleeve is provided with multiple mounting grooves, which are spaced apart. The multiple anti-slip components are respectively installed in the multiple mounting grooves.

[0015] As a preferred structure of this utility model, the anti-slip component is an anti-slip mat.

[0016] As a preferred structure of this utility model, the guardrail device of the chain conveyor also includes a mounting base, which is fixedly connected to the frame of the chain conveyor. The bottom end of the guardrail post is fixedly connected to the mounting base, and the mounting base is provided with multiple mounting holes.

[0017] As a preferred structure of this utility model, the multi-stage telescopic tube includes a first telescopic tube and a second telescopic tube;

[0018] One end of the first telescopic tube is fixedly installed, and one end of the second telescopic tube is nested inside the other end of the first telescopic tube; the second telescopic tube is slidably connected to the first telescopic tube, and the other end of the second telescopic tube is fixedly connected to the protrusion;

[0019] The driving mechanism is a driving cylinder, one end of which is connected to the first telescopic tube, and the other end of which is connected to the second telescopic tube.

[0020] The advantages of the above technical solution, compared with existing technologies, are as follows: The guardrail device of this utility model, through the matching structure of the sleeve and guardrail tube, and the use of fastening bolts on both sides to firmly fix the guardrail tube, significantly enhances the stability of the guardrail tube after installation, effectively preventing the guardrail tube from falling off due to external impact, thereby reducing equipment safety hazards. Simultaneously, the guardrail tube can be quickly disassembled by loosening the fastening bolts on both sides, making operation convenient and quick. The design of the rotating seat and the protrusion connected by a locking component allows the sleeve and guardrail tube to rotate and adjust around the protrusion. Operators can loosen the locking component, adjust the guardrail tube to a suitable angle, and then relock it without the need for complete disassembly and replacement of the guardrail structure. This not only simplifies the operation process and reduces maintenance costs but also allows for rapid adaptation to changes in production needs, thereby improving production efficiency. When the conveying height or material type of the chain conveyor changes, the guardrail height is adjusted through the drive mechanism: the drive mechanism drives the multi-stage telescopic tube to extend and retract, thereby changing the overall height of the guardrail posts. The entire operation process is simple and efficient, and the guardrail structure can be flexibly adjusted according to actual production needs.

[0021] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0022] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0023] In the accompanying drawings of the instruction manual:

[0024] Figure 1 This is one of the structural schematic diagrams of the guardrail device of the chain conveyor described in the specific implementation embodiment;

[0025] Figure 2 This is a second structural schematic diagram of the guardrail device of the chain conveyor described in the specific implementation method;

[0026] Figure 3 This is a schematic diagram showing the disassembled structure of the guardrail device of the chain conveyor described in a specific embodiment.

[0027] Figure 4 This is a partial structural diagram of the guardrail device of the chain conveyor described in a specific embodiment;

[0028] Figure 5 This is a side view of the guardrail device of the chain conveyor described in a specific embodiment.

[0029] The reference numerals used in the above figures are explained as follows:

[0030] 1. Guardrail post; 101. First telescopic pipe; 102. Second telescopic pipe;

[0031] 2. Bumps;

[0032] 3. Locking components; 301. Locking screw; 302. Fastening nut;

[0033] 4. Rotary seat; 401. Opening groove; 402. Limiting groove;

[0034] 5. Sleeve;

[0035] 6. Guardrail pipes;

[0036] 7. Threaded seat;

[0037] 8. Tighten the bolts;

[0038] 9. Anti-slip components;

[0039] 10. Mounting base;

[0040] 11. Drive mechanism. Detailed Implementation

[0041] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0042] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0044] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0045] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0046] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0047] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0048] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. These expressions are only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. Furthermore, in this context, it should be understood that when it is mentioned that an element is connected "on" or "below" another element, it can be directly connected not only to the other element "on" or "below," but also indirectly connected to the other element "on" or "below" through an intermediate element.

[0049] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0050] Please see Figures 1 to 5 This embodiment relates to a guardrail device for a chain conveyor. Through the synergistic innovation of "telescopic column structure + rotatable connection mechanism + multi-locking anti-fall-off design", it achieves integrated functions of guardrail height adjustment, angle adjustment, and anti-fall-off. The mounting base 10 provides a fixed foundation for the overall device to the chain conveyor frame; the guardrail column 1 adopts a multi-stage telescopic tube nesting structure, driven by a drive mechanism 11 to achieve height adjustment; the top of the guardrail column 1 is engaged with a rotating seat 4 via a protrusion 2, allowing the rotating seat 4 to rotate relative to the protrusion 2 to adjust the angle of the guardrail tube 6, and is locked in place by a locking component 3; the guardrail tube 6 passes through a sleeve 5, and is doubly fixed by fastening bolts 8 on both sides of the sleeve 5 and an inner anti-slip component 9 to prevent fall-off; the synergistic action of all components ensures that the guardrail device achieves flexible adjustment while possessing high stability and safety.

[0051] Specifically, such as Figures 1 to 5 As shown, the guardrail device of the chain plate machine in this embodiment includes a guardrail post 1, a guardrail tube 6, and a drive mechanism 11; wherein the guardrail post 1 is a vertically arranged core support component, used to support the guardrail tube 6 and realize the height adjustment of the guardrail, and is a load-bearing structure connecting the mounting base 10 and the guardrail tube 6, which determines the overall height and support stability of the guardrail.

[0052] A protrusion 2 is fixedly connected to the top of the guardrail post 1, and a rotating seat 4 is fixedly connected to the top of the protrusion 2 via a locking component 3. The protrusion 2 is a raised connecting component fixed to the top of the guardrail post 1, providing an installation reference and rotation support point for the rotating seat 4. It is a key transitional structure for adjusting the angle of the guardrail tube 6, bearing the supporting force of the guardrail post 1 and transmitting it to the rotating seat 4. The rotating seat 4 is a rotatable component connecting the protrusion 2 and the sleeve 5, used to drive the guardrail tube 6 to adjust its angle. It is a structure that allows for flexible adaptation of the guardrail angle, bearing the supporting force of the protrusion 2 and transmitting it to the sleeve 5 and the guardrail tube 6. The rotation function allows for angle adjustment without disassembling the guardrail tube 6, making operation convenient and avoiding the cumbersome process of disassembling and replacing traditional guardrails, thus improving work efficiency. The locking component 3 is a locking component used to fix the relative position of the rotating seat 4 and the protrusion 2.

[0053] A sleeve 5 is fixedly connected to the top of the rotating seat 4, and the guardrail tube 6 is disposed inside the sleeve 5. Threaded seats 7 are fixedly connected to both sides of the sleeve 5. Fastening bolts 8 are threadedly connected to the threaded seats 7, and one end of the fastening bolts 8 extends into the sleeve 5 and abuts against the outer periphery of the guardrail tube 6. The guardrail tube 6 is a protective component of the guardrail device, used to isolate operators from the running parts of the chain conveyor and prevent materials from falling. It is the carrier for realizing the safety protection function.

[0054] The guardrail post 1 includes multiple levels of telescopic tubes, which are nested within each other. Each level of the telescopic tube is made of high-strength steel pipe to ensure sufficient load-bearing strength and resistance to deformation. The multi-level telescopic structure allows for height adjustment without overall disassembly, adapting to different material conveying heights (e.g., low-height conveying of granular materials, high-height conveying of block materials) or different operating scenarios of chain conveyors, thus solving the shortcomings of traditional guardrails with fixed heights. The drive mechanism 11 is located on the outer wall of the guardrail post 1 and is used to drive the multiple levels of telescopic tubes to extend and retract. The drive mechanism 11 is the power component for driving the extension and retraction of the multi-level telescopic tubes, and uses a drive cylinder to achieve automated height adjustment, which is the core power structure that improves operational convenience and efficiency. The drive mechanism 11 achieves automated height adjustment of the guardrail, eliminating the need for manual handling or disassembly, reducing labor intensity, and improving work efficiency, making it particularly suitable for scenarios requiring frequent height adjustments.

[0055] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the bottom of the rotating seat 4 has an opening slot 401, through which the rotating seat 4 is engaged with the top of the protrusion 2. The shape of the protrusion 2 is adapted to the opening slot 401 at the bottom of the rotating seat 4 (e.g., a rectangular protrusion 2 with a rectangular opening slot 401, or a circular protrusion 2 with a circular opening slot 401). The height of the protrusion 2 is 15-20mm, ensuring that the rotating seat 4 has sufficient support area and rotational stability after being engaged. The shape design adapted to the opening slot 401 of the rotating seat 4 ensures accurate positioning after engagement, preventing deviation or shaking during rotation, and improving the stability and accuracy of angle adjustment. The depth of the opening slot 401 is consistent with the height of the protrusion 2 (15-20mm), ensuring that the rotating seat 4 can be tightly engaged with the top of the protrusion 2 and achieve free rotation; the top of the rotating seat 4 is fixedly connected to the sleeve 5 by welding.

[0056] Optionally, in some embodiments, such as Figures 1 to 5As shown, the locking component 3 includes a locking screw 301 and a fastening nut 302. The threaded end of the locking screw 301 passes through the rotating seat 4 and the protrusion 2 in sequence, and is threadedly connected to the fastening nut 302. The protrusion 2 has a through hole, the inner diameter of which matches the outer thread diameter of the locking screw 301, for inserting the locking screw 301. The through hole provides an installation channel for the locking component 3, ensuring a secure connection between the rotating seat 4 and the protrusion 2 and preventing loosening after angle adjustment. Through the cooperation of the locking screw 301 and the fastening nut 302, the rotating seat 4 is firmly locked after angle adjustment, preventing it from rotating on its own and ensuring the stability of the guardrail tube 6 angle.

[0057] Optionally, in some embodiments, such as Figures 1 to 5 As shown, a limiting groove 402 is provided on one side of the rotating base 4, and the fastening nut 302 is embedded in the limiting groove 402. The limiting groove 402, which is adapted to the fastening nut 302, is provided on one side of the rotating base 4. The depth of the limiting groove 402 is consistent with the thickness of the fastening nut 302, ensuring that the fastening nut 302 is not exposed after being embedded. The limiting groove 402 effectively restricts the rotation of the fastening nut 302, preventing the nut from loosening due to external impact or vibration after locking, ensuring the locking stability of the locking component 3, and thus ensuring the reliable angle fixation of the guardrail tube 6. The fastening nut 302 is completely embedded in the groove, avoiding collision damage and dust accumulation caused by exposure, extending the nut's service life, and reducing maintenance costs.

[0058] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the guardrail device of the chain conveyor also includes multiple anti-slip components 9. Multiple mounting grooves are provided on the inner wall of the sleeve 5, spaced apart. The multiple anti-slip components 9 are respectively installed in the multiple mounting grooves. The anti-slip components 9 are friction-enhancing components installed on the inner wall of the sleeve 5, used to increase the friction between the sleeve 5 and the guardrail tube 6, assisting the fastening bolts 8 in preventing detachment and securing them. They are an important component of the double-fixing structure. Specifically, the anti-slip components 9 are made of wear-resistant rubber or silicone, possessing good elasticity and friction. Preferably, in this embodiment, the anti-slip component 9 is an anti-slip pad. The shape of the anti-slip component 9 is adapted to the mounting groove (e.g., an arc-shaped piece), and the surface is provided with anti-slip textures (e.g., horizontal stripes or grid patterns). Multiple anti-slip components 9 are evenly distributed along the circumference of the inner wall of the sleeve 5, respectively installed in the multiple mounting grooves. The wear-resistant rubber / silicone material and anti-slip texture design of the anti-slip component 9 significantly increase the friction between the sleeve 5 and the guardrail tube 6, effectively preventing the guardrail tube 6 from sliding or rotating inside the sleeve 5. Together with the fastening bolt 8, it forms a double anti-drop guarantee, improving the reliability of the fixation.

[0059] Optionally, in some embodiments, such as Figures 1 to 5As shown, the guardrail device of the chain conveyor also includes a mounting base 10, which is fixedly connected to the frame of the chain conveyor. The bottom end of the guardrail post 1 is fixedly connected to the mounting base 10, and the mounting base 10 has multiple mounting holes. The mounting base 10 is a base-type component fixed to the chain conveyor frame, used to connect and support the guardrail post 1, and serves as the connection carrier between the guardrail device and the main body of the chain conveyor, providing an installation reference and stable support for the entire guardrail device. Specifically, the mounting base 10 has 4-6 evenly distributed mounting holes, which can be designed as oblong holes to facilitate fine-tuning of the horizontal position during installation and adapt to the mounting hole positions of different frames. The mounting base 10 is fixedly connected to the chain conveyor frame through the mounting holes using expansion bolts or high-strength fastening screws. The bottom end of the guardrail post 1 is fixed to the upper surface of the mounting base 10 by welding or bolt fastening, and the connection surface is leveled to ensure that the guardrail post 1 is vertically installed. Installation and disassembly are convenient. During maintenance, only the connecting screws between the mounting base 10 and the frame need to be removed or installed. There is no need to modify the main structure of the chain conveyor, which reduces the difficulty and cost of installation and maintenance.

[0060] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the multi-stage telescopic tube includes a first telescopic tube 101 and a second telescopic tube 102. One end of the first telescopic tube 101 is fixedly installed, and one end of the second telescopic tube 102 is nested inside the other end of the first telescopic tube 101. The second telescopic tube 102 is slidably connected to the first telescopic tube 101, and the other end of the second telescopic tube 102 is fixedly connected to the protrusion 2. One end of the first telescopic tube 101 is fixedly connected to the mounting base 10 by welding or bolts, and the other end is an open structure. One end of the second telescopic tube 102 is nested inside the open end of the first telescopic tube 101, and its outer wall slides against the first telescopic tube 101 to ensure smooth telescopic movement without jamming. The other end of the second telescopic tube 102 is fixedly connected to the protrusion 2. The driving mechanism 11 is a driving cylinder, one end of which is connected to the first telescopic tube 101, and the other end of which is connected to the second telescopic tube 102. The second telescopic tube 102 is driven by the drive mechanism 11 to slide axially relative to the first telescopic tube 101, thereby changing the overall height of the guardrail post 1. The telescopic adjustment method is convenient to operate and can be automatically adjusted in conjunction with the drive mechanism 11, eliminating the need for manual handling and disassembly, thus improving work efficiency.

[0061] Specifically, such as Figures 1 to 5As shown, the guardrail device of the chain conveyor in this embodiment is used as follows: First, the retractable guardrail post 1 is fixed to the designated position on the frame of the chain conveyor through the mounting holes on the mounting base 10. Then, the guardrail tube 6 is inserted into the sleeve 5, and the fastening bolts 8 on the threaded seats 7 on both sides are rotated so that the ends of the fastening bolts 8 are tightly abutted against the outer circumference of the guardrail tube 6. The anti-slip pad is used to increase friction and ensure that the guardrail tube 6 is stably installed. When it is necessary to adjust the angle of the guardrail tube 6, the fastening nut 302 in the locking part 3 is loosened so that the rotating seat 4 can rotate around the protrusion 2. After adjusting to a suitable angle, the fastening nut 302 is tightened again, and the rotating seat 4 is fixed to the protrusion 2 by the locking screw 301. At this time, the limiting groove 402 can limit the fastening nut 302 to prevent it from loosening and affecting the angle fixation. When the conveying height or material type of the chain conveyor changes, the guardrail height is adjusted by the drive mechanism 11: the second telescopic tube 102 is extended and retracted by the drive cylinder, which causes the second telescopic tube 102 to slide relative to the first telescopic tube 101, thereby changing the overall height of the guardrail post 1; the whole operation process is simple and efficient, and the guardrail structure can be flexibly adjusted according to actual production needs.

[0062] Specifically, such as Figures 1 to 5 As shown, the working principle of the guardrail device of the chain conveyor in this embodiment is as follows:

[0063] 1. Installation and fixing stage

[0064] First, the entire guardrail device is fixed to the chain conveyor frame using the mounting base 10: the mounting base 10 is aligned with the preset position of the chain conveyor frame, and expansion bolts or high-strength screws are passed through the mounting holes on the mounting base 10 to secure it, so that the mounting base 10 is firmly connected to the frame; the bottom end of the first telescopic tube 101 of the guardrail post 1 is fixed to the mounting base 10 to ensure that the overall installation of the guardrail device is stable and can resist external impact.

[0065] 2. Height Adjustment Stage

[0066] When the conveying height or material type of the chain conveyor changes, the guardrail height is adjusted via the drive mechanism 11:

[0067] The second telescopic tube 102 is extended and retracted by the drive cylinder, which causes the second telescopic tube 102 to slide relative to the first telescopic tube 101, thereby changing the overall height of the guardrail post 1.

[0068] After the height is adjusted to the correct position, the drive cylinder maintains pressure to keep the second telescopic tube 102 and the first telescopic tube 101 relatively fixed, ensuring height stability.

[0069] 3. Angle Adjustment Stage

[0070] Adjust the protective angle of guardrail tube 6 according to the material loading / unloading requirements or the conveying direction:

[0071] Loosen locking part 3: Manually loosen the butterfly head of locking screw 301 to separate the fastening nut 302 from locking screw 301, and release the rotating seat 4 from fixation;

[0072] Rotation adjustment: Push the guardrail tube 6 to drive the sleeve 5 and the rotating seat 4 to rotate around the protrusion 2. The bottom opening groove 401 of the rotating seat 4 is engaged with the protrusion 2 to ensure smooth rotation without deviation. Adjust the guardrail tube 6 to the required angle, such as adjusting it to a 45° avoidance angle when feeding materials and adjusting it to a 90° vertical protection angle when conveying materials.

[0073] Locking and fixing: After the angle is adjusted to the correct position, tighten the locking screw 301 in the reverse direction so that the locking screw 301 passes through the rotating seat 4 and the protrusion 2. The fastening nut 302 is embedded in the limiting groove 402 and locked to restrict the rotation of the rotating seat 4 and ensure that the angle of the guardrail tube 6 is fixed.

[0074] 4. Anti-fall-off fixing and protection stage

[0075] The guardrail tube 6 achieves anti-fall-off fixation through a double structure: First fixation: Tighten the fastening bolts 8 on both sides of the sleeve 5, and the hemispherical top of the bolt thread end presses against the outer periphery of the guardrail tube 6, applying uniform clamping force from both sides to initially fix the guardrail tube 6 inside the sleeve 5; Second fixation: The anti-slip component 9 (anti-slip pad) on the inner side of the sleeve 5 fits tightly against the outer periphery of the guardrail tube 6, and the anti-slip texture increases friction to prevent the guardrail tube 6 from sliding or rotating inside the sleeve 5;

[0076] Protective Operation: When the chain conveyor is running, the guardrail tube 6 forms a safety isolation barrier, preventing operators from contacting the running parts and preventing materials from falling. When subjected to collision with the trolley or impact from materials, the high-strength guardrail post 1, sleeve 5, and double fixing structure work together to resist external forces, preventing the guardrail tube 6 from falling off and ensuring production safety.

[0077] 5. Maintenance and Adjustment Phase

[0078] When it is necessary to replace guardrail tube 6 or adjust its position:

[0079] Loosen the fastening bolt 8 to remove the guardrail tube 6 for replacement or maintenance;

[0080] Repeated height and angle adjustments allow for quick adaptation to new material conveying needs without requiring complete disassembly of the guardrail device, reducing maintenance costs and ensuring production continuity.

[0081] The advantages of the above technical solution, which differ from existing technologies, are as follows:

[0082] 1. Solves the safety hazard of traditional guardrails being prone to detachment, significantly improving stability. Compared to the problem of traditional guardrails relying on a single movable connection (which cannot be welded shut) leading to collision-induced detachment, this solution achieves an upgraded anti-detachment effect through a "double fixing structure + high-strength load-bearing design":

[0083] First layer of fixation: The fastening bolts 8, which are symmetrically arranged on both sides of the sleeve 5, clamp the guardrail tube 6 in both directions, ensuring uniform clamping force and avoiding loosening caused by rigid contact.

[0084] The second layer of fixation: the anti-slip pad on the inside of the sleeve 5 enhances the friction with the guardrail tube 6 through the anti-slip texture. Even if the bolt tightening force is slightly reduced, it can still prevent instantaneous detachment through friction limit.

[0085] The connection structure of protrusion 2 and rotating seat 4 can resist external forces such as collision with the vehicle and impact of materials, ensuring that the guardrail tube 6 does not loosen or fall off during frequent operations, and greatly improving safety redundancy.

[0086] 2. Achieves flexible adjustment of both height and angle, breaking through traditional limitations in adaptability. Addressing the shortcomings of traditional guardrails with fixed angles and heights, which cannot adapt to different material types and conveying heights, this embodiment constructs an "automated height adjustment + angle adjustment" system:

[0087] Height adjustment: The multi-stage telescopic tube is driven by a drive cylinder to slide, achieving stepless adjustment within the range of 0.5-2m. It can adapt to the conveying height requirements of different materials such as granular materials and block materials without disassembly. Compared with the traditional "overall disassembly and replacement" method, the adaptation efficiency is improved.

[0088] Angle adjustment: The snap-fit ​​rotating structure of the rotating seat 4 and the protrusion 2 allows for free adjustment of the guardrail tube 6. When feeding materials, it can be adjusted to the avoidance angle, and when conveying, it can be quickly switched to the protection angle, solving the contradiction of traditional guardrails that are either too fixed and affect loading and unloading, or too loose and cause safety hazards.

[0089] 3. Operational ease of use is greatly improved, and maintenance costs are significantly reduced.

[0090] Traditional guardrails require complete disassembly and replacement to suit different scenarios, which is cumbersome and affects production efficiency. This solution achieves "disassembly-free adjustment + low-cost maintenance" through structural optimization:

[0091] Convenient adjustment: Height adjustment can be automated by controlling the button, and angle adjustment only requires manually loosening the locking screw 301. There is no need to disassemble the guardrail tube 6 or the post throughout the process. One person can complete the adjustment, which improves the efficiency of operation.

[0092] Highly efficient maintenance: Easily damaged parts such as anti-slip mats and guardrail tubes 6 can be replaced individually without the need for overall disassembly of the device; the design of the mounting base 10 allows for fine-tuning of the installation position without secondary processing of the chain conveyor frame, reducing maintenance costs, and ensuring continuous production without interrupting the adjustment process.

[0093] 4. It balances versatility and security, and has a wide range of applicable scenarios.

[0094] Unlike traditional guardrails that are only compatible with specific sizes of chain conveyors, this embodiment improves versatility through modular design while enhancing safety features in detail:

[0095] High versatility: The multi-mounting hole design of the mounting base 10 can be adapted to different specifications of chain plate machine frames, the length of the guardrail tube 6 can be customized, and the height and angle adjustment range covers the mainstream needs of industrial production. It is suitable for multiple industries such as papermaking, chemical industry, metallurgy, and mining.

[0096] Safety details upgraded: The 402 limit groove is fitted with a 302 fastening nut to prevent loosening due to collision; the guide groove and guide ridge of the telescopic tube prevent adjustment deviation; the pressure holding function of the drive cylinder ensures height stability, completely avoiding the problems of traditional guardrails that are "easy to deviate after adjustment and easy to fail after long-term use".

[0097] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A guardrail device for a chain conveyor, characterized in that: This includes guardrail posts, guardrail tubes, and drive mechanisms; The top of the guardrail post is fixedly connected to a protrusion, and the top of the protrusion is fixedly connected to a rotating seat by a locking device. A sleeve is fixedly connected to the top of the rotating seat, the guardrail tube is set inside the sleeve, and threaded seats are fixedly connected to both sides of the sleeve. The threaded seat is threaded with a fastening bolt, one end of which extends into the sleeve and abuts against the outer periphery of the guardrail tube. The guardrail post includes multiple telescopic tubes, and the multiple telescopic tubes are nested together. The drive mechanism is installed on the outer wall of the guardrail post, and the drive mechanism is used to drive the multiple telescopic tubes to extend and retract.

2. The guardrail device for the chain conveyor according to claim 1, characterized in that: The bottom of the rotating seat has an opening groove, and the rotating seat is engaged with the top of the protrusion through the opening groove.

3. The guardrail device for the chain conveyor according to claim 1, characterized in that: The locking component includes a locking screw and a fastening nut. The threaded end of the locking screw passes through the rotating seat and the protrusion in sequence and is threadedly connected to the fastening nut.

4. The guardrail device for the chain conveyor according to claim 3, characterized in that: A limiting groove is provided on one side of the rotating seat, and the fastening nut is embedded in the limiting groove.

5. The guardrail device for the chain conveyor according to claim 1, characterized in that: The guardrail device of the chain conveyor also includes multiple anti-slip components. The inner sidewall of the sleeve is provided with multiple mounting slots, which are spaced apart. The multiple anti-slip components are respectively installed in the multiple mounting slots.

6. The guardrail device for the chain conveyor according to claim 5, characterized in that: The anti-slip component is an anti-slip mat.

7. The guardrail device for the chain conveyor according to claim 1, characterized in that: The guardrail device of the chain conveyor also includes a mounting base, which is fixedly connected to the frame of the chain conveyor. The bottom end of the guardrail post is fixedly connected to the mounting base, and the mounting base is provided with multiple mounting holes.

8. The guardrail device for a chain conveyor according to any one of claims 1 to 7, characterized in that: The multi-stage telescopic pipe includes a first telescopic pipe and a second telescopic pipe; One end of the first telescopic tube is fixedly installed, and one end of the second telescopic tube is nested inside the other end of the first telescopic tube; the second telescopic tube is slidably connected to the first telescopic tube, and the other end of the second telescopic tube is fixedly connected to the protrusion; The driving mechanism is a driving cylinder, one end of which is connected to the first telescopic tube, and the other end of which is connected to the second telescopic tube.

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