Reinforced galvanized bridge with enhanced load bearing

Abstract

The utility model discloses a kind of reinforced galvanized bridge frame of enhanced load bearing, including bridge main body, the support mechanism is fixedly connected with the outer wall of bridge main body, the shell is fixedly connected with the outer wall of support mechanism, bridge main body bottom is provided with static mechanism, support mechanism side is provided with hole, hole inner wall is penetrated by screw rod, screw rod outer wall is equipped with washer, screw rod outer wall is connected with nut by screw thread, and vertical rod is fixedly connected to bridge main body side, upper chord rod is fixedly connected to vertical rod side, inclined rod one is fixedly connected to upper chord rod bottom, lower chord rod is fixedly connected to vertical rod side, and upper chord rod and lower chord rod are fixedly connected, the vertical rod that is respectively close to bridge main body opening is all set with hole, and vertical rod, upper chord rod, inclined rod one and lower chord rod are equidistant array to the length extension direction of bridge main body. The utility model can improve the load capacity of bridge, avoid the risk of deformation or fracture caused by long-term stress of bridge.

Description

Technical Field

[0001] This utility model relates to the field of reinforced galvanized cable tray technology, and in particular to a reinforced galvanized cable tray with enhanced load-bearing capacity. Background Technology

[0002] In the existing technology, galvanized cable trays are metal cable trays that are processed by galvanizing. They are mainly used for cable laying and management in the power, communication and other fields. Through reasonable structural design, they provide safe and orderly installation support space for cables and protect them from external mechanical damage, corrosion and electromagnetic interference.

[0003] A search revealed a Chinese patent publication number, N221806395U, which discloses a galvanized cable tray for easy splicing. The galvanized cable tray includes a galvanized cable tray with horizontal plates fixedly installed at both ends of its left side. Movable grooves are evenly distributed on the inner sides of the two horizontal plates, and a connecting shaft is movably installed inside each groove. In this utility model, the splicing mechanism uses a return spring to release elastic potential energy when the circular groove moves below a locking block, pushing the locking block into the groove, thus splicing the two galvanized cable trays end-to-end. However, this utility model has a weak load-bearing capacity. Under long-term loads of cable weight or exposure to horizontal forces such as vibration, the locking structure may cause the cable tray to shift laterally or crack at the splice. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a reinforced galvanized cable tray with enhanced load-bearing capacity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reinforced galvanized cable tray with enhanced load-bearing capacity includes a cable tray body, a support mechanism fixedly connected to the outer wall of the cable tray body, a shell fixedly connected to the outer wall of the support mechanism, a statically fixed mechanism at the bottom of the cable tray body, and a hole on one side of the support mechanism.

[0007] As a further embodiment of this utility model: a screw rod passes through the inner wall of the hole, a washer is fitted on the outer wall of the screw rod, and a nut is connected to the outer wall of the screw rod by a thread.

[0008] As a further embodiment of this utility model: the support mechanism includes a vertical rod, an upper chord, an inclined rod, and a lower chord, with the vertical rod fixedly connected to one side of the cable tray body and the upper chord fixedly connected to one side of the vertical rod.

[0009] As a further embodiment of this utility model: the diagonal bar is fixedly connected to the bottom of the upper chord, the lower chord is fixedly connected to one side of the vertical bar, and the upper chord and the lower chord are fixedly connected.

[0010] As a further improvement of this utility model: holes are provided on the vertical rods near the opening of the main body of the cable tray, and the vertical rods, upper chord rods, diagonal rods and lower chord rods are arranged in an equidistant array along the length of the main body of the cable tray.

[0011] As a further embodiment of this utility model: the statically determinate mechanism includes a straight rod, a second inclined rod, and a third inclined rod, with the straight rod fixedly connected to the bottom of the cable tray body and fixedly connected to two lower chords.

[0012] As a further embodiment of this utility model: the second inclined rod is fixedly connected to one side of the second inclined rod, and the second inclined rod is fixedly connected to the straight rod; the third inclined rod is fixedly connected to the lower chord rod on the side away from the second inclined rod, and the third inclined rod is fixedly connected to the straight rod.

[0013] Compared with the prior art, this utility model provides a reinforced galvanized cable tray with enhanced load-bearing capacity, which has the following beneficial effects:

[0014] 1. Align the support mechanisms of the two cable tray bodies, then insert the screw into the hole opened in the support mechanism, and then put washers on both ends. Tighten the screw with nuts. At this time, the statically determinate mechanism disperses the vertical load of the cable tray body through geometric invariance, thereby improving the overall load-bearing capacity. At the same time, the support mechanism and the shell form a composite protection and reinforcement, which together with the statically determinate mechanism constitutes a multi-dimensional force system. This improves the load-bearing capacity of the cable tray body, reduces the bending stress of the cable tray body, and allows for a larger span design to reduce the number of supports.

[0015] 2. When the cable tray body bears the weight of cables, the weight is first transmitted to the vertical members through the cable tray body. The vertical members then transmit the weight upwards to the upper chord, and the load is decomposed into a triangular truss unit composed of the upper chord, lower chord, and diagonal members. Through the synergistic action of the axial forces of the above members, the concentrated load is transformed into axial tensile and compressive stress in the truss unit. This stress is then dispersed and transmitted through adjacent truss units and supports arranged in an array, achieving efficient bearing and distribution of vertical loads. In this way, the vertical load of the cable tray body is transformed into axial tensile and compressive stress, avoiding the risk of deformation or breakage of the cable tray body due to bending stress. At the same time, the high stiffness characteristics allow for larger span designs, reducing the use of supports, making it suitable for scenarios where it is inconvenient to install supports and shortening the construction period.

[0016] 3. When the main body of the cable tray bears the load, the weight is transferred to the straight bar through the main body of the cable tray, and then decomposed into axial tensile and compressive forces through the second and third diagonal bars, which are then transmitted to the lower chord and the support mechanism to achieve axial distribution of the load. This improves the utilization rate of material strength, effectively resists horizontal loads, and reduces the risk of local stress concentration.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view of a reinforced galvanized cable tray with enhanced load-bearing capacity proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a reinforced galvanized cable tray with enhanced load-bearing capacity proposed in this utility model;

[0020] Figure 3 This is a bottom view of a reinforced galvanized cable tray with enhanced load-bearing capacity proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the support mechanism in a reinforced galvanized cable tray designed to enhance load-bearing capacity, as proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the statically determinate mechanism in a reinforced galvanized cable tray designed to enhance load-bearing capacity, as proposed in this utility model.

[0023] In the diagram: 1. Outer shell; 2. Support mechanism; 3. Cable tray body; 4. Washer; 5. Nut; 6. Screw; 7. Statically determinate mechanism; 201. Vertical rod; 202. Upper chord; 203. Diagonal rod one; 204. Lower chord; 701. Straight rod; 702. Diagonal rod two; 703. Diagonal rod three. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "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 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.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] A reinforced galvanized cable tray with enhanced load-bearing capacity, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the cable tray includes a main body 3, a support mechanism 2 is fixedly connected to the outer wall of the main body 3, a shell 1 is fixedly connected to the outer wall of the support mechanism 2, a statically fixed mechanism 7 is provided at the bottom of the main body 3, a hole is provided on one side of the support mechanism 2, a screw 6 passes through the inner wall of the hole, a washer 4 is fitted on the outer wall of the screw 6, and a nut 5 is threadedly connected to the outer wall of the screw 6.

[0028] The support mechanisms 2 of the two cable tray bodies 3 are aligned, and then the screw 6 is inserted into the hole opened in the support mechanism 2. Washers 4 are then fitted into both ends, and the screw 6 is tightened by nuts 5. At this time, the statically determinate mechanism 7 disperses the vertical load of the cable tray body 3 through geometric invariance, thereby improving the overall load-bearing capacity. At the same time, the support mechanism 2 and the outer shell 1 form a composite protection and reinforcement, which together with the statically determinate mechanism 7 constitutes a multi-dimensional force system. As a result, the load-bearing capacity of the cable tray body 3 is improved, the bending stress of the cable tray body 3 is reduced, and a larger span design is allowed to reduce the number of supports.

[0029] In order to protect and reinforce the main body 3 of the cable tray, such as Figure 3 As shown, the support mechanism 2 includes a vertical rod 201, an upper chord 202, a diagonal rod 203, and a lower chord 204. The vertical rod 201 is fixedly connected to one side of the cable tray body 3, the upper chord 202 is fixedly connected to one side of the vertical rod 201, the diagonal rod 203 is fixedly connected to the bottom of the upper chord 202, and the lower chord 204 is fixedly connected to one side of the vertical rod 201. The upper chord 202 and the lower chord 204 are fixedly connected. Holes are provided on the vertical rods 201 near the openings of the cable tray body 3. The vertical rods 201, upper chord 202, diagonal rod 203, and lower chord 204 are arranged in an equidistant array along the length of the cable tray body 3.

[0030] When the cable tray body 3 bears the weight of cables, the weight is first transmitted to the vertical member 201 through the cable tray body 3. The vertical member 201 then transmits the weight upward to the upper chord member 202, and the force is decomposed into the triangular truss unit composed of the upper chord member 202, the lower chord member 204, and the diagonal member 203. Through the synergistic action of the axial forces of the above members, the concentrated load is transformed into the axial tensile and compressive stress of the truss unit. Then, the load is dispersed and transmitted through the array of adjacent truss units and supports, achieving efficient bearing and distribution of vertical load. Thus, the vertical load of the cable tray body 3 is transformed into axial tensile and compressive stress, avoiding the risk of deformation or breakage of the cable tray body 3 due to bending stress. At the same time, the high rigidity characteristics allow for larger span designs, reducing the use of supports, making it suitable for scenarios where it is inconvenient to install supports and shortening the construction period.

[0031] To further enhance the load-bearing capacity of the main body 3 of the cable tray, such as Figure 5 As shown, the statically determinate mechanism 7 includes a straight rod 701, a second inclined rod 702, and a third inclined rod 703. The straight rod 701 is fixedly connected to the bottom of the cable tray body 3 and is fixedly connected to two lower chords 204. The second inclined rod 702 is fixedly connected to one side of the second inclined rod 702 and is fixedly connected to the straight rod 701. The third inclined rod 703 is fixedly connected to the lower chord 204 on the side away from the second inclined rod 702 and is fixedly connected to the straight rod 701.

[0032] When the cable tray body 3 bears a load, the weight is transferred to the straight rod 701 through the cable tray body 3, and then decomposed into axial tensile and compressive forces through the second diagonal rod 702 and the third diagonal rod 703. These forces are then transmitted to the lower chord 204 and the support mechanism 2 to achieve axial load dispersion. This improves the utilization rate of material strength, effectively resists horizontal loads, and reduces the risk of local stress concentration.

[0033] Working principle: The support mechanisms 2 of the two cable tray bodies 3 are aligned, and then the screw 6 is inserted into the hole opened in the support mechanism 2. Subsequently, washers 4 are put into both ends, and the screw 6 is tightened by nuts 5. At this time, the statically determinate mechanism 7 disperses the vertical load of the cable tray body 3 through geometric invariance, thereby improving the overall load-bearing capacity. At the same time, the support mechanism 2 and the outer shell 1 form a composite protection and reinforcement, which together with the statically determinate mechanism 7 constitutes a multi-dimensional force system.

[0034] When the cable tray body 3 bears the weight of cables, the weight is first transmitted through the cable tray body 3 to the vertical member 201. The vertical member 201 then transmits the weight upwards to the upper chord member 202, and the triangular truss unit composed of the upper chord member 202, the lower chord member 204, and the diagonal member 203 decomposes the force. Through the synergistic action of the axial forces of the above members, the concentrated load is transformed into axial tensile and compressive stress in the truss unit, which is then dispersed and transmitted through the arrayed adjacent truss units and supports, achieving efficient bearing and distribution of vertical loads.

[0035] When the cable tray body 3 bears the load, the weight is transferred to the straight bar 701 through the cable tray body 3, and then decomposed into axial tensile and compressive forces through the second diagonal bar 702 and the third diagonal bar 703, which are then transmitted to the lower chord 204 and the support mechanism 2 to achieve axial load dispersion.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reinforced galvanized cable tray with enhanced load-bearing capacity, comprising a cable tray body (3), characterized in that, The outer wall of the cable tray body (3) is fixedly connected to a support mechanism (2), the outer wall of the support mechanism (2) is fixedly connected to a shell (1), the bottom of the cable tray body (3) is provided with a statically fixed mechanism (7), and a hole is provided on one side of the support mechanism (2).

2. The reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 1, characterized in that, A screw (6) runs through the inner wall of the hole, a washer (4) is fitted on the outer wall of the screw (6), and a nut (5) is threaded onto the outer wall of the screw (6).

3. The reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 1, characterized in that, The support mechanism (2) includes a vertical rod (201), an upper chord (202), an inclined rod (203), and a lower chord (204), with the vertical rod (201) fixedly connected to one side of the cable tray body (3) and the upper chord (202) fixedly connected to one side of the vertical rod (201).

4. The reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 3, characterized in that, The diagonal bar (203) is fixedly connected to the bottom of the upper chord (202), and the lower chord (204) is fixedly connected to one side of the vertical bar (201), and the upper chord (202) and the lower chord (204) are fixedly connected.

5. A reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 3, characterized in that, Holes are provided on the vertical rods (201) near the opening of the main body of the cable tray (3). The vertical rods (201), the upper chord (202), the first diagonal rod (203), and the lower chord (204) are arranged in an equidistant array along the length of the main body of the cable tray (3).

6. A reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 1, characterized in that, The statically determinate mechanism (7) includes a straight rod (701), a second inclined rod (702) and a third inclined rod (703), and the straight rod (701) is fixedly connected to the bottom of the cable tray body (3), and the straight rod (701) is fixedly connected to two lower chords (204).

7. A reinforced galvanized cable tray with enhanced load-bearing capacity according to claim 6, characterized in that, The second diagonal bar (702) is fixedly connected to one side of the second diagonal bar (702), and the second diagonal bar (702) is fixedly connected to the straight bar (701). The third diagonal bar (703) is fixedly connected to the lower chord bar (204) on the side away from the second diagonal bar (702), and the third diagonal bar (703) is fixedly connected to the straight bar (701).

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