Adjustable connection pipe clamp for reducing guardrail sway

Abstract

The utility model provides a kind of adjustable connecting pipe clamp for reducing guardrail swing, including first pipe clamp and second pipe clamp respectively installed on handrail frame and mine car upper side fence, and the intermediate connecting plate being arranged between first pipe clamp and second pipe clamp, first connecting hole and second connecting hole distributed in the connecting plate middle line two sides are opened in the intermediate connecting plate, first pipe clamp is connected by bolt with first connecting hole, second pipe clamp is connected by bolt with second connecting hole, at least any first connecting hole and second connecting hole are set as waist type hole. The utility model since intermediate connecting plate adopts waist type hole design, allow bolt to move in hole, reduce installation accuracy requirement, applicable to harsh mine area environment, set up intermediate connecting plate can adapt to the different spacing between handrail frame and guardrail, without artificial forced extrusion guardrail or escalator, avoid deformation and fracture caused by long-term stress to extend the service life of escalator and guardrail.

Description

Technical Field

[0001] This invention relates to an adjustable connecting pipe clamp that reduces guardrail swaying, belonging to the technical field of clamping and connecting devices. Background Technology

[0002] Mining vehicles operate for extended periods in harsh mining environments. The cabs of large mining dump trucks are located high above the ground, requiring drivers to climb a ladder to access the platform. Typically, the ladder is connected to the platform railing. This connection reduces the impact of the large and heavy rearview mirror components on the railing during truck operation, which could cause cracking or damage to the railing. Additionally, the railing's movement can cause the rearview mirror components to sway, affecting the driver's visual judgment.

[0003] Due to the limitations of vehicle structure, the distance between escalators and guardrails varies. Existing connection structures cannot accommodate different spacings. Usually, the distance between the guardrail and escalator is artificially reduced and squeezed inward, and then fixed together by connectors. Over time, the stress causes deformation of the escalator or guardrail structure, which may eventually lead to breakage and other dangerous situations, affecting the normal use of the vehicle.

[0004] Therefore, in order to avoid the problem that existing connection structures do not have room for selection when facing different spacing, there is a need for a connection structure that can have multiple options for adaptation when the spacing between the escalator and the handrail is different, so as to ensure the stability of the connection between the escalator and the handrail and extend its service life. Summary of the Invention

[0005] Purpose of the invention: To address the shortcomings of existing technologies, this invention provides an adjustable connecting pipe clamp to reduce guardrail swaying, thereby solving the problems mentioned in the background section.

[0006] Technical solution: An adjustable connecting pipe clamp to reduce guardrail sway, comprising a first pipe clamp and a second pipe clamp respectively installed on the handrail and the upper side railing of the mine car, and an intermediate connecting plate disposed between the first pipe clamp and the second pipe clamp. The first pipe clamp and the second pipe clamp are both configured as a modular type, consisting of two pipe clamp sub-blocks. The intermediate connecting plate is clamped between the two pipe clamp sub-blocks on both sides. The intermediate connecting plate has a first connecting hole and a second connecting hole distributed on both sides of the dividing line in the connecting plate. The first pipe clamp is bolted to the first connecting hole, and the second pipe clamp is bolted to the second connecting hole. At least one of the first connecting hole and the second connecting hole is configured as an oblong hole.

[0007] This utility model features an oblong hole design in the intermediate connecting plate, allowing bolts to move within the hole, thus reducing installation accuracy requirements and making it suitable for harsh mining environments. The intermediate connecting plate can accommodate different spacings between the handrail and the guardrail, eliminating the need for manual forced compression of the guardrail or handrail, and avoiding deformation and breakage caused by long-term stress, thereby extending the service life of the handrail and guardrail.

[0008] When the handrail and the upper railing of the mine car have the same pipe diameter and the distance between them is less than 120mm, the first connecting hole and the second connecting hole are both set as waist-shaped holes. The first connecting hole and the second connecting hole each include at least two arranged longitudinally, and the two first connecting holes and the second connecting holes are staggered.

[0009] Multiple holes disperse the tightening force of the bolts, making the connection more uniform, reducing the risk of deformation, and adapting to installation with small spacing. The staggered arrangement of the first and second connecting holes can reduce the design width of the intermediate connecting plate, thereby achieving a small-spacing transition connection without affecting the connection strength.

[0010] When the handrail and the upper fence of the mine car have the same pipe diameter and the distance between them is greater than 120mm and less than 150mm, the intermediate connecting plate includes a first connecting part and a second connecting part. The first connecting part and the second connecting part are respectively integrated with one of the pipe clamp blocks of the first pipe clamp and the pipe clamp block on the other side of the second pipe clamp. Both the first connecting part and the second connecting part have a convex structure and a round hole at one end near the pipe clamp block. They are connected to another pipe clamp block in the same group by bolts. The first connecting part has a first connecting hole at the end away from the pipe clamp. The first connecting hole is an oblong hole. The second connecting part has a second connecting hole at the end away from the pipe clamp. The second connecting hole is a round hole. Bolts for connecting the first connecting part and the second connecting part are provided through the first connecting hole and the second connecting part.

[0011] The one-piece design reduces connection points, improves overall rigidity, and avoids the loosening problems that may occur with assembled structures. In applications that require tilted installation, the hinges of the joints provide room for rotation while ensuring the stability of the connection.

[0012] Using the opposite design structure, it is also possible to achieve pipe fitting connection with angle. The first connecting part is provided with a first connecting hole at the end away from the pipe clamp. The first connecting hole is a round hole. The second connecting part is provided with a second connecting hole at the end away from the pipe clamp. The second connecting hole is an oblong hole. A bolt for connecting the first connecting part and the second connecting part is provided through the first connecting hole and the second connecting part.

[0013] When the handrail and the upper railing pipe of the mine car have the same diameter and the distance between them is greater than or equal to 150mm, the first connecting hole and the second connecting hole are both set as waist-shaped holes. The first connecting hole and the second connecting hole each include at least two longitudinally arranged holes, and the first connecting hole and the second connecting hole are symmetrically arranged along the center line of the connecting plate.

[0014] For situations with large spacing, a middle connecting plate structure with a longer transition distance is adopted. The waist-shaped holes on both sides are symmetrically distributed. While accommodating manufacturing errors, the middle connecting plate is subjected to balanced force to prevent tilting, thereby reducing shaking and stress concentration.

[0015] When the diameter of the handrail and the upper fence of the mine car are different, the first connecting hole is set as a waist-shaped hole and the second connecting hole is set as a round hole.

[0016] Because some guardrail structures have thicker pipe diameters than the handrail frames, the thicker guardrail structures need to be fixed at both ends to achieve a stable connection. The other end of the handrail frame, which can be finely adjusted, uses a slotted hole to compensate for some manufacturing or assembly errors and achieve a fit.

[0017] A rubber sleeve is provided between the first and second pipe clamps and the handrail and the upper side railing of the mine car, and the upper and lower ends of the rubber sleeve cover the upper and lower edges of the first and second pipe clamps.

[0018] To prevent the protective paint from wearing off due to friction at the connection between the handrail or guardrail structure and the first and second pipe clamps during use, a rubber sleeve is installed to separate the handrail or guardrail structure from the pipe clamps. This improves the clamping stability of the pipe clamps and avoids wear caused by contact, thereby further extending the service life of the handrail or guardrail structure.

[0019] Beneficial effects: This utility model, with its oblong hole design in the intermediate connecting plate, allows bolts to move within the hole, reducing installation accuracy requirements and making it suitable for harsh mining environments. The intermediate connecting plate accommodates different spacing between the handrail and guardrail, eliminating the need for forced compression of the guardrail or handrail, thus preventing deformation and breakage caused by long-term stress and extending the service life of the handrail and guardrail. The use of rubber sleeves to separate the handrail or guardrail structure from the pipe clamps improves the clamping stability of the pipe clamps while preventing wear caused by contact. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the pipe connection structure applicable to pipes with a spacing of less than 120mm.

[0022] Figure 2 This is a structural diagram of the connecting plate for pipe fittings with a spacing of less than 120mm, which is applicable to the connection structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the pipe connection structure applicable to pipes with a spacing greater than 120mm and less than 150mm.

[0024] Figure 4 This is a structural diagram of the connecting plate for pipe fittings with a spacing greater than 120mm and less than 150mm, which is applicable to the connection structure of this utility model.

[0025] Figure 5 This is a schematic diagram of a pipe connection structure applicable to pipes with a spacing greater than or equal to 150mm.

[0026] Figure 6 This is a structural diagram of the connecting plate for pipe fittings with a spacing greater than or equal to 150mm, which is applicable to the connection structure of this utility model.

[0027] Figure 7 This is a schematic diagram of the connection structure between the handrail and the upper fence of the mine car with different pipe diameters, which is applicable to this utility model.

[0028] Figure 8 This utility model provides a structural diagram of a connecting plate for connecting handrails and upper railings of mine cars with pipes of different diameters. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 invention 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 invention.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] An adjustable connecting pipe clamp for reducing guardrail sway includes a first pipe clamp 1 and a second pipe clamp 2 respectively installed on the handrail and the upper side railing of the mine car, and an intermediate connecting plate 3 disposed between the first pipe clamp 1 and the second pipe clamp 2. The first pipe clamp 1 and the second pipe clamp 2 are both assembled and composed of two pipe clamp sub-blocks. The intermediate connecting plate 3 is clamped between the two pipe clamp sub-blocks on both sides. The intermediate connecting plate 3 has a first connecting hole 4 and a second connecting hole 5 distributed on both sides of the dividing line in the connecting plate. The first pipe clamp 1 is connected to the first connecting hole 4 by bolts, and the second pipe clamp 2 is connected to the second connecting hole 5 by bolts. At least one of the first connecting hole 4 and the second connecting hole 5 is set as an oblong hole.

[0033] Because the intermediate connecting plate 3 of this utility model adopts a waist-shaped hole design, it allows the bolts to move in the hole, which reduces the installation accuracy requirements and is suitable for harsh mining environments. The intermediate connecting plate 3 can adapt to different spacings between the handrail and the guardrail, eliminating the need for manual forced compression of the guardrail or handrail, avoiding deformation and breakage caused by long-term stress, and thus extending the service life of the handrail and guardrail.

[0034] Example 1, such as Figure 1 and 2 As shown, when the handrail and the upper railing of the mine car have the same pipe diameter and the distance between them is less than 120mm, the first connecting hole 4 and the second connecting hole 5 are both set as waist-shaped holes. The first connecting hole 4 and the second connecting hole 5 each include at least two arranged longitudinally, and the two first connecting holes 4 and the second connecting holes 5 are staggered.

[0035] Multiple holes disperse the tightening force of the bolts, making the connection more uniform, reducing the risk of deformation, and adapting to installation with small spacing. The staggered arrangement of the first connecting hole 4 and the second connecting hole 5 can reduce the design width of the intermediate connecting plate 3, thereby achieving a small-spacing transition connection without affecting the connection strength.

[0036] Example 2, as follows Figure 3 and 4As shown, when the handrail and the upper fence of the mine car have the same pipe diameter and the distance between them is greater than 120mm and less than 150mm, the intermediate connecting plate 3 includes a first connecting part 6 and a second connecting part 7. The first connecting part 6 and the second connecting part 7 are respectively integrated with one of the pipe clamp blocks of the first pipe clamp 1 and the pipe clamp block on the other side of the second pipe clamp 2. Both the first connecting part 6 and the second connecting part 7 are convex structures, and both have a round hole at one end near the pipe clamp block. They are connected to another pipe clamp block in the same group by bolts. The first connecting part 6 has a first connecting hole 4 at the end away from the pipe clamp. The first connecting hole 4 is an oblong hole. The second connecting part 7 has a second connecting hole 5 at the end away from the pipe clamp. The second connecting hole 5 is a round hole. A bolt for connecting the first connecting part 6 and the second connecting part 7 is provided through the first connecting hole 4 and the second connecting hole 5 on the first connecting part 6 and the second connecting part 7.

[0037] Example 3: The first connecting part 6 is provided with a first connecting hole 4 at the end away from the pipe clamp. The first connecting hole 4 is a round hole. The second connecting part 7 is provided with a second connecting hole 5 at the end away from the pipe clamp. The second connecting hole 5 is an oblong hole. A bolt for connecting the first connecting part 6 and the second connecting part 7 is provided through the first connecting hole 4 and the second connecting hole 5 on the first connecting part 6 and the second connecting part 7.

[0038] The one-piece design reduces connection points, improves overall rigidity, and avoids the loosening problems that may occur with assembled structures. In applications that require tilted installation, the hinges of the joints provide room for rotation while ensuring the stability of the connection.

[0039] Example 4, such as Figure 5 and 6 As shown, when the handrail and the upper side railing of the mine car have the same pipe diameter and the distance between them is greater than or equal to 150mm, the first connecting hole 4 and the second connecting hole 5 are both set as waist-shaped holes. The first connecting hole 4 and the second connecting hole 5 each include at least two longitudinally arranged holes, and the first connecting hole 4 and the second connecting hole 5 are symmetrically arranged along the center line of the connecting plate.

[0040] For situations with large spacing, a middle connecting plate 3 structure with a longer transition distance is adopted. The waist-shaped holes on both sides are symmetrically distributed. While accommodating manufacturing errors, the middle connecting plate 3 is subjected to balanced force to prevent tilting, thereby reducing shaking and stress concentration.

[0041] Example 5, as follows Figure 7 and 8 As shown, when the diameter of the handrail and the upper fence of the mine car are different, the first connecting hole 4 is set as a waist-shaped hole, and the second connecting hole 5 is set as a round hole.

[0042] Because some guardrail structures have thicker pipe diameters than the handrail frames, the thicker guardrail structures need to be fixed at both ends to achieve a stable connection. The other end of the handrail frame, which can be finely adjusted, uses a slotted hole to compensate for some manufacturing or assembly errors and achieve a fit.

[0043] Example 6: A rubber sleeve 8 is provided between the first pipe clamp 1 and the second pipe clamp 2 and the handrail and the upper side railing of the mine car. The upper and lower ends of the rubber sleeve 8 cover the upper and lower edges of the first pipe clamp 1 and the second pipe clamp 2.

[0044] To prevent the protective paint from being worn off at the connection between the handrail or guardrail structure and the first pipe clamp 1 and the second pipe clamp 2 due to friction during use, a rubber sleeve 8 is installed to separate the handrail or guardrail structure from the pipe clamp. This improves the clamping stability of the pipe clamp and avoids wear caused by contact, thereby further extending the service life of the handrail or guardrail structure.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the 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 invention. Therefore, the 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. An adjustable connecting pipe clamp for reducing guardrail swaying, characterized in that: The system includes a first pipe clamp (1) and a second pipe clamp (2) installed on the handrail and the upper side railing of the mine car, respectively, and an intermediate connecting plate (3) set between the first pipe clamp (1) and the second pipe clamp (2). The first pipe clamp (1) and the second pipe clamp (2) are both assembled and consist of two pipe clamp sub-blocks. The intermediate connecting plate (3) is clamped between the two pipe clamp sub-blocks on both sides. The intermediate connecting plate (3) has a first connecting hole (4) and a second connecting hole (5) distributed on both sides of the dividing line in the connecting plate. The first pipe clamp (1) is connected to the first connecting hole (4) by bolts, and the second pipe clamp (2) is connected to the second connecting hole (5) by bolts. At least one of the first connecting hole (4) and the second connecting hole (5) is set as a waist-shaped hole.

2. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 1, characterized in that: When the handrail and the upper side fence of the mine car have the same pipe diameter and the distance is less than 120mm, the first connecting hole (4) and the second connecting hole (5) are both set as waist-shaped holes. The first connecting hole (4) and the second connecting hole (5) each include at least two arranged in the longitudinal direction, and the two first connecting holes (4) and the second connecting hole (5) are staggered.

3. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 1, characterized in that: When the handrail and the upper fence of the mine car have the same pipe diameter and the distance between them is greater than 120mm and less than 150mm, the intermediate connecting plate (3) includes a first connecting part (6) and a second connecting part (7). The first connecting part (6) and the second connecting part (7) are respectively integrated with one of the pipe clamp blocks of the first pipe clamp (1) and the pipe clamp block on the other side of the second pipe clamp (2). Both the first connecting part (6) and the second connecting part (7) are convex structures, and both have a round hole at one end near the pipe clamp block. They are connected to another pipe clamp block in the same group by bolts. The first connecting part (6) has a first connecting hole (4) at the end away from the pipe clamp. The first connecting hole (4) is a waist-shaped hole. The second connecting part (7) has a second connecting hole (5) at the end away from the pipe clamp. The second connecting hole (5) is a round hole. Bolts for connecting the first connecting part (6) and the second connecting part (7) are provided through the first connecting hole (4) and the second connecting hole (5) on the first connecting part (6) and the second connecting part (7).

4. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 3, characterized in that: The first connecting part (6) has a first connecting hole (4) at the end away from the pipe clamp. The first connecting hole (4) is a round hole. The second connecting part (7) has a second connecting hole (5) at the end away from the pipe clamp. The second connecting hole (5) is a waist-shaped hole. A bolt for connecting the first connecting part (6) and the second connecting part (7) is provided through the first connecting hole (4) and the second connecting hole (5) on the first connecting part (6) and the second connecting part (7).

5. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 1, characterized in that: When the handrail and the upper side railing pipe have the same diameter and the spacing is greater than or equal to 150mm, the first connecting hole (4) and the second connecting hole (5) are both set as waist-shaped holes. The first connecting hole (4) and the second connecting hole (5) each include at least two arranged longitudinally, and the first connecting hole (4) and the second connecting hole (5) are symmetrically arranged along the center line of the connecting plate.

6. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 1, characterized in that: When the diameter of the handrail frame and the upper fence of the mine car are different, the first connecting hole (4) is set as a waist-shaped hole and the second connecting hole (5) is set as a round hole.

7. The adjustable connecting pipe clamp for reducing guardrail swaying according to claim 1, characterized in that: A rubber sleeve (8) is provided between the first pipe clamp (1) and the second pipe clamp (2) and the handrail and the upper side railing of the mine car. The rubber sleeve (8) covers the upper and lower edges of the first pipe clamp (1) and the second pipe clamp (2) at both ends.

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