Plug-pull type protective barrier for crane

Abstract

The utility model discloses a plug-in type protective barrier for a crane. The plug-in type protective barrier comprises a protective barrier main frame body, the transverse handrail structure is mounted on the guardrail main frame body; the guardrail base structure is detachably connected with the guardrail main frame body; the guardrail base structure comprises a sleeve structure matched with the mounting legs at the bottom of the guardrail main frame body; the external hole structure is arranged on one side of the pipe wall of the sleeve structure; the internal positioning hole structure is arranged on the inner wall of the other side of the pipe wall of the sleeve structure; the outer ball structures, the inner ball structures and the spring structures are arranged in the installation leg pipes at the bottom of the guardrail main frame body, in the scheme, the springs can be pressed to clamp the outer ball structures into the sleeves during installation, when the springs reach the positions of the sleeve holes, the outer balls are popped out, and the inner balls are limited, so that the guardrail is positioned; during disassembly, the outer balls on the two sides need to be pressed to be reset, the protective barrier is pulled out, compared with the prior art, assembly and disassembly are convenient and fast, and recycling of the protective barrier is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and more specifically, to a plug-in safety railing for cranes. Background Technology

[0002] With the development of the national port machinery loading and unloading industry, the demand for cranes in ports, docks, shipyards and large hydropower stations continues to grow. Similarly, the safety requirements for the installation and use of cranes are also increasing day by day. In the existing technology, the crane ladder railing system will set a section of welded protective railing at each lifting lug and connecting hinge point for maintenance as a safety guarantee. The maintenance and disassembly are difficult and cannot be reused.

[0003] Therefore, how to provide a pluggable crane guardrail that can overcome the problems of existing technology, is easy and quick to install and disassemble, and can be recycled has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a pluggable guardrail for cranes, which can overcome the existing technical problems, is easy and quick to install and disassemble, and can be recycled.

[0005] This utility model provides a pluggable guardrail for cranes, comprising: a main guardrail frame; a transverse guardrail structure installed on the main guardrail frame; and a guardrail base structure detachably connected to the main guardrail frame. The guardrail base structure includes: a sleeve structure that mates with the bottom mounting legs of the main guardrail frame; an external hole structure on one side of the sleeve structure wall; an internal positioning hole structure on the inner wall of the other side of the sleeve structure wall; an outer ball bearing structure, an inner ball bearing structure, and a spring structure disposed inside the bottom mounting leg tube of the main guardrail frame; wherein the spring structure is disposed between the outer ball bearing structure and the inner ball bearing structure; when the sleeve structure is connected to the main guardrail frame, the outer ball bearing structure is partially exposed through the bottom mounting leg tube wall and the external hole structure; the inner ball bearing structure is partially embedded in the internal positioning hole structure through the bottom mounting leg tube wall.

[0006] Furthermore, in a preferred embodiment of this utility model, a first limiting hole is provided on one side of the bottom of the guardrail main frame where the leg tubes are installed, the first limiting hole being used to correspond to the position of the external hole structure; a second limiting hole is provided on the other side of the bottom of the guardrail main frame where the leg tubes are installed, the second limiting hole being used to correspond to the position of the internal positioning hole structure; the outer ball bearing structure is partially exposed through the first limiting hole and the external hole structure; the inner ball bearing structure is partially embedded in the internal positioning hole structure through the second limiting hole.

[0007] Furthermore, in a preferred embodiment of this invention, the diameter of the first limiting hole is smaller than the diameter of the outer ball bearing structure; and the diameter of the second limiting hole is smaller than the diameter of the inner ball bearing structure.

[0008] Furthermore, in a preferred embodiment of this utility model, both the main frame of the guardrail and the horizontal railing structure are made of galvanized steel pipes.

[0009] Furthermore, in a preferred embodiment of this utility model, the horizontal railing structure specifically comprises 2 to 6 pieces.

[0010] Furthermore, in a preferred embodiment of this utility model, the transverse railing structure is detachably connected to the main frame of the guardrail.

[0011] Furthermore, in a preferred embodiment of this utility model, the guardrail base structure further includes a stabilizing support leg structure disposed at the lower part of the sleeve structure.

[0012] Furthermore, in a preferred embodiment of this utility model, the stabilizing leg structure includes: a first stabilizing leg installed at the lower part of the sleeve structure, a second stabilizing leg installed at the lower part of the sleeve structure, and a third stabilizing leg installed at the lower part of the sleeve structure; the first stabilizing leg, the second stabilizing leg, and the third stabilizing leg are evenly distributed on the outer side of the sleeve structure.

[0013] Furthermore, in a preferred embodiment of this utility model, it further includes an anti-accidental contact locking sleeve structure sleeved outside the sleeve structure for slidingly covering the external hole structure.

[0014] Furthermore, in a preferred embodiment of this utility model, it further includes: a kick plate structure installed on the main frame of the guardrail and located at the lower part of the horizontal railing structure.

[0015] In summary, compared with the prior art, the present invention provides a pluggable guardrail for cranes, comprising: a main guardrail frame; a transverse guardrail structure installed on the main guardrail frame; and a guardrail base structure detachably connected to the main guardrail frame. The guardrail base structure includes: a sleeve structure that mates with the bottom mounting legs of the main guardrail frame; an external hole structure on one side of the sleeve structure's tube wall; an internal positioning hole structure on the inner wall of the other side of the sleeve structure's tube wall; an outer ball bearing structure, an inner ball bearing structure, and a spring structure disposed inside the bottom mounting leg tube of the main guardrail frame; wherein the spring structure is disposed between the outer ball bearing structure and the inner ball bearing structure; when the sleeve structure is connected to the main guardrail frame, the outer ball bearing structure is partially exposed through the bottom mounting leg tube wall and the external hole structure; the inner ball bearing structure is partially embedded in the internal positioning hole structure through the bottom mounting leg tube wall of the main guardrail frame. In this invention, during installation, the spring structure is compressed, causing the outer ball bearing structure to be inserted into the sleeve structure. When the outer ball bearing reaches the position of the outer hole structure and the inner positioning hole structure of the sleeve structure, it pops out into the outer hole structure, and the inner ball bearing structure is embedded in the inner positioning hole structure for limitation, thereby positioning the guardrail. During disassembly, the outer ball bearing structures on both sides need to be pressed to reset them, and the guardrail can be pulled out. Compared with the prior art, installation and disassembly are convenient and quick, which is conducive to the repeated use of the guardrail. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of a pluggable guardrail for cranes provided in an embodiment of this utility model;

[0018] Figure 2 A disassembly diagram of the pluggable guardrail for cranes provided in this embodiment of the utility model;

[0019] Figure 3 This is a front view of a pluggable crane guardrail provided in an embodiment of the present utility model;

[0020] Figure 4 A cross-sectional view of the guardrail base structure provided in an embodiment of this utility model;

[0021] Figure 5A schematic diagram showing the positions of the first limiting hole, the second limiting hole, the external hole structure, and the internal positioning hole structure provided in the embodiments of this utility model. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] like Figures 1 to 5As shown, the plug-in type crane guardrail provided in this embodiment includes: a guardrail main frame 1; a transverse guardrail structure 2 installed on the guardrail main frame 1; and a guardrail base structure 3 detachably connected to the guardrail main frame 1. The guardrail base structure 3 includes: a sleeve structure 301 that cooperates with the bottom mounting legs of the guardrail main frame 1; an external hole structure 302 provided on one side of the sleeve structure 301; an internal positioning hole structure 306 provided on the inner wall of the sleeve structure 301 on the other side; and a bottom mounting leg provided on the bottom of the guardrail main frame 1. The mounting leg tube is equipped with an outer ball bearing structure 303, an inner ball bearing structure 304, and a spring structure 305. The spring structure 305 is located between the outer ball bearing structure 303 and the inner ball bearing structure 304. When the sleeve structure 301 is connected to the main frame of the guardrail 1, the outer ball bearing structure 303 is partially exposed through the bottom mounting leg tube wall of the main frame of the guardrail 1 and the outer hole structure 302. The inner ball bearing structure 304 is partially embedded in the inner positioning hole structure 306 through the bottom mounting leg tube wall of the main frame of the guardrail 1. In this invention, during installation, the spring structure is compressed, causing the outer ball bearing structure to be inserted into the sleeve structure. When the outer ball bearing reaches the position of the outer hole structure and the inner positioning hole structure of the sleeve structure, it pops out into the outer hole structure, and the inner ball bearing structure is embedded in the inner positioning hole structure for limitation, thereby positioning the guardrail. During disassembly, the outer ball bearing structures on both sides need to be pressed to reset them, and the guardrail can be pulled out. Compared with the prior art, installation and disassembly are convenient and quick, which is conducive to the repeated use of the guardrail.

[0028] Specifically, in a specific embodiment of this utility model, a first limiting hole 101 is provided on one side of the bottom of the guardrail main frame 1 where the leg tubes are installed, and the first limiting hole 101 is used to correspond to the position of the external hole structure 302; a second limiting hole 102 is provided on the other side of the bottom of the guardrail main frame 1 where the leg tubes are installed, and the second limiting hole 102 is used to correspond to the position of the internal positioning hole structure 306; the outer ball structure 303 passes through the first limiting hole 101 and the external hole structure 302 and is partially exposed; the inner ball structure 304 passes through the second limiting hole 102 and is partially embedded in the internal positioning hole structure 306.

[0029] Specifically, in a specific embodiment of this utility model, the diameter of the first limiting hole 101 is smaller than the diameter of the outer ball structure 303; the diameter of the second limiting hole 102 is smaller than the diameter of the inner ball structure 304.

[0030] Specifically, in a specific embodiment of this utility model, both the main frame 1 of the guardrail and the horizontal railing structure 2 are made of galvanized steel pipes.

[0031] Specifically, in a specific embodiment of this utility model, the horizontal railing structure 2 consists of 2 to 6 pieces.

[0032] Specifically, in a specific embodiment of this utility model, the horizontal railing structure 2 is detachably connected to the main guardrail frame 1.

[0033] Specifically, in a specific embodiment of this utility model, the guardrail base structure 3 further includes a stable support leg structure disposed at the lower part of the sleeve structure 301.

[0034] Specifically, in a specific embodiment of this utility model, the stabilizing leg structure includes: a first stabilizing leg installed on the lower part of the sleeve structure 301, a second stabilizing leg installed on the lower part of the sleeve structure 301, and a third stabilizing leg installed on the lower part of the sleeve structure 301; the first stabilizing leg, the second stabilizing leg, and the third stabilizing leg are evenly distributed on the outer side of the sleeve structure 301.

[0035] Specifically, in a specific embodiment of this utility model, it further includes an anti-accidental contact locking sleeve structure sleeved on the outside of the sleeve structure 301 for slidingly covering the external hole structure 302.

[0036] Specifically, in a specific embodiment of this utility model, it further includes: a kick plate structure 4 installed on the main frame 1 of the guardrail and located at the lower part of the horizontal railing structure 2.

[0037] More specifically, with the development of the national port machinery loading and unloading industry, the demand for cranes in ports, docks, shipyards, and large hydropower stations continues to grow. Similarly, the safety requirements for crane installation and use are also increasing daily. Previously, crane ladder guardrail systems used welded protective railings at each lifting lug and connecting hinge point for maintenance as a safety guarantee, but this also greatly increased the difficulty of designing avoidance and maintenance disassembly. This utility model utilizes a pluggable protective railing, which uses springs and ball bearings at the bottom of the railing to limit its position. When the railing needs to be removed, simply press the ball bearings at the bottom of the railing to reset it. This ensures the safety of workers during installation and maintenance while reducing the difficulty of design avoidance and maintenance disassembly. The purpose of this utility model is to provide a pluggable protective railing for cranes, ensuring the safety of workers during installation and maintenance while reducing the difficulty of design avoidance and maintenance disassembly. Compared with traditional welding technology, this pluggable protective railing offers certain guarantees in terms of use and safety. In terms of installation, the precision is low and the structure is relatively simple. For disassembly, the guardrail can be reset by pushing the ball bearings, and then pulled out. Regarding reusability, this spring-ball bearing structure is more advantageous than welding to the main structure, meeting the requirements for reusability. This structure does not use welding or bolts for installation and disassembly; instead, it uses a spring and ball bearing system, offering significant advantages in service life, installation / disassembly time, and reusability. The guardrail gate applied for consists of an outer galvanized steel pipe, an inner galvanized steel pipe, a kick plate, a spring, ball bearings, and a sleeve. It incorporates technical features such as the outer galvanized steel pipe, inner galvanized steel pipe, kick plate, spring, and ball bearings, forming a unified whole that works with the sleeve. During installation, the spring is compressed, locking the ball bearings into the sleeve. When the ball bearings reach the sleeve hole, the outer ball bearings pop out, while the inner ball bearings limit the movement, positioning the guardrail. For disassembly, the outer ball bearings on both sides must be pressed to reset them, and then the guardrail can be pulled out.

[0038] In summary, the technical solution involved in this utility model embodiment has the advantages of convenient, quick, and efficient installation and disassembly, and its service life is significantly extended, and its safety protection function is significantly enhanced. Compared with the prior art, it has prominent substantive features and significant technical effects.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pluggable guardrail for cranes, characterized in that, include: Main frame of the guardrail (1); The horizontal railing structure (2) is installed on the main frame (1) of the guardrail. The guardrail base structure (3) is detachably connected to the main frame (1) of the guardrail; The guardrail base structure (3) includes: A sleeve structure (301) that cooperates with the bottom mounting leg of the main frame (1) of the guardrail. An external hole structure (302) is provided on one side of the tube wall of the sleeve structure (301). An internal positioning hole structure (306) is provided on the inner wall of the other side of the sleeve structure (301). An outer ball bearing structure (303), an inner ball bearing structure (304), and a spring structure (305) are installed inside the leg tubes at the bottom of the main frame of the guardrail (1). The spring structure (305) is disposed between the outer ball structure (303) and the inner ball structure (304); When the sleeve structure (301) is connected to the main frame of the guardrail (1), the outer ball bearing structure (303) is partially exposed through the bottom mounting leg tube wall of the main frame of the guardrail (1) and the outer hole structure (302); The inner ball bearing structure (304) is embedded in the inner positioning hole structure (306) through the wall of the bottom mounting leg tube of the main frame of the guardrail (1); a first limiting hole (101) is provided on one side of the bottom mounting leg tube of the main frame of the guardrail (1), and the first limiting hole (101) is used to correspond to the position of the outer hole structure (302); a second limiting hole (102) is provided on the other side of the bottom mounting leg tube of the main frame of the guardrail (1), and the second limiting hole (102) is used to correspond to the position of the inner positioning hole structure (306); the outer ball bearing structure (303) is partially exposed through the first limiting hole (101) and the outer hole structure (302); the inner ball bearing structure (304) is embedded in the inner positioning hole structure (306) through the second limiting hole (102).

2. The pluggable crane guardrail according to claim 1, characterized in that, The diameter of the first limiting hole (101) is smaller than the diameter of the outer ball structure (303); The diameter of the second limiting hole (102) is smaller than the diameter of the inner ball structure (304).

3. The pluggable crane guardrail according to claim 1, characterized in that, The main frame (1) of the guardrail and the horizontal railing structure (2) are both made of galvanized steel pipes.

4. The pluggable crane guardrail according to claim 1, characterized in that, The horizontal railing structure (2) consists of 2 to 6 sections.

5. The pluggable crane guardrail according to claim 1, characterized in that, The horizontal railing structure (2) is detachably connected to the main guardrail frame (1).

6. The pluggable crane guardrail according to claim 1, characterized in that, The guardrail base structure (3) also includes a stable support leg structure located at the bottom of the sleeve structure (301).

7. The pluggable crane guardrail according to claim 6, characterized in that, The stabilizing leg structure includes: a first stabilizing leg installed at the lower part of the sleeve structure (301), a second stabilizing leg installed at the lower part of the sleeve structure (301), and a third stabilizing leg installed at the lower part of the sleeve structure (301); the first stabilizing leg, the second stabilizing leg, and the third stabilizing leg are evenly distributed on the outside of the sleeve structure (301).

8. The pluggable crane guardrail according to claim 1, characterized in that, It also includes an anti-accidental contact locking sleeve structure sleeved outside the sleeve structure (301) for slidingly covering the external hole structure (302).

9. The pluggable crane guardrail according to any one of claims 1 to 8, characterized in that, Also includes: The kick plate structure (4) is installed on the main frame (1) of the guardrail and located at the bottom of the horizontal railing structure (2).

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