Groove type bridge without bolt connection

Abstract

The utility model discloses a groove type bridge without bolt connection, which comprises a reinforced groove type bridge, a bridge connecting piece, a bridge switching component and a bridge cover plate, the reinforced groove type bridge comprises a bridge bottom plate, bridge side plates and bridge upper edge reinforcing ribs, and the bottoms of two ends of the bridge bottom plate are respectively provided with a plurality of bridge groove type reinforcing ribs; the bridge connecting piece is groove-shaped and comprises a connecting piece bottom plate, connecting piece side plates and connecting piece upper edge reinforcing ribs, and two groups of connecting piece groove-shaped reinforcing ribs are symmetrically arranged at the bottom of the connecting piece bottom plate; the bridge switching component comprises a component structure main body, component joints and a component cover plate, each component joint comprises a component joint bottom plate, a component joint side plate and a component joint upper edge reinforcing rib, a plurality of component joint groove type reinforcing ribs are arranged at the bottom of each component joint bottom plate, and the bridge cover plate covers the reinforced groove type bridge and the bridge connecting frame. Comprising a cover plate flat plate and cover plate reinforcing ribs. The groove type bridge can be installed conveniently and quickly, and the connector strength is high.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically a boltless trough-type cable tray, suitable for wire and cable laying projects. Background Technology

[0002] Cable trays are fully enclosed cable trays widely used in electromechanical installation engineering. Traditionally, cable trays use bolts and connectors for connection between trays or to various components (elbows, tees, crosses, etc.). A single connection requires 2 or 4 connectors and 12 or 24 cable tray connecting bolts (generally 2 connectors and 12 bolts for tray height ≤ 100mm, and 4 connectors and 24 bolts for tray height ≥ 150mm).

[0003] Traditional trough-type cable trays using bolts and connectors have the following problems: 1. They require numerous connectors, bolts, and other accessories; 2. The installation process is cumbersome and inefficient; 3. After long-term use, bolts may loosen, affecting connection stability and the structural strength of the cable tray. Based on this, this invention proposes a boltless trough-type cable tray, achieving rapid assembly, high strength, and maintenance-free operation through structural innovation. Utility Model Content

[0004] To address the shortcomings of traditional technologies, this utility model provides a boltless trough-type cable tray, which mainly solves the problems of numerous accessories and low installation efficiency in traditional trough-type cable trays by innovating the interface connection method.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a boltless cable tray with a grooved design, comprising a reinforced grooved cable tray, cable tray connectors, cable tray transition components, and a cable tray cover plate. The reinforced grooved cable tray includes a cable tray base plate, cable tray side plates, and upper edge reinforcing ribs. Multiple grooved reinforcing ribs are provided at the bottom of both ends of the cable tray base plate. The cable tray connector is grooved, comprising a connector base plate, connector side plates, and upper edge reinforcing ribs. Two sets of grooved reinforcing ribs are symmetrically provided at the bottom of the connector base plate, and an observation hole is provided in the middle of the connector base plate. The cable tray transition component includes a portion... The component structure consists of a main body, component joints, and component cover plates. Each component joint includes a component joint base plate, a component joint side plate, and a component joint upper edge reinforcing rib. The bottom of the component joint base plate is provided with multiple component joint groove-shaped reinforcing ribs. The reinforced groove-type cable tray and the component joint can be pressed through the upper edge reinforcing ribs of the connector. The cable tray groove-shaped reinforcing ribs and the component joint groove-shaped reinforcing ribs can be inserted into the connector groove-shaped reinforcing ribs. The upper edge reinforcing ribs of the connector block above the upper edge reinforcing ribs of the cable tray and the upper edge reinforcing ribs of the component joint. The cable tray cover plate is closed and locked on the reinforced groove-type cable tray and the cable tray connecting frame, including a cover plate flat plate and a cover plate reinforcing rib.

[0006] Furthermore, the upper reinforcing rib of the connector is divided into two sections. The lower section connects to the side plate of the connector and extends obliquely upward in the outward direction, while the upper section connects to the lower section and extends horizontally inward.

[0007] Furthermore, the included angle between the cover plate and the cover plate reinforcing rib is greater than the included angle between the two segments of the upper edge reinforcing rib of the connector and less than 90°.

[0008] Furthermore, three cable tray channel-shaped reinforcing ribs are machined at the bottom of both ends of the cable tray base plate. The spacing between the three cable tray channel-shaped reinforcing ribs is equal, and the spacing from both ends to the edge is symmetrical and equal.

[0009] Furthermore, six connecting groove-shaped reinforcing ribs are machined on the bottom of the connector base plate, and the positions of the connecting groove-shaped reinforcing ribs correspond one-to-one with the positions of the cable tray groove-shaped reinforcing ribs.

[0010] Furthermore, the reinforced trough-type cable tray is made by folding the edges of a single piece of galvanized steel sheet, with the joints between them at 90°.

[0011] Furthermore, the two ends of the cable tray side plate and the end of the component joint side plate are machined with reserved connection holes for cable tray grounding wire, for installing cable tray grounding wire.

[0012] Furthermore, the connection between two sections of reinforced trough-type cable trays or between a reinforced trough-type cable tray and a cable tray transition component is installed using the following steps:

[0013] Step 1: Based on the site conditions and cable tray installation requirements, fabricate and install cable tray supports;

[0014] Step 2: Select the two reinforced trough-type cable trays or reinforced trough-type cable trays and cable tray adapter components that need to be connected, select cable tray connectors with appropriate specifications, and determine the installation position;

[0015] Step 3: Place the end or component joint of the reinforced trough-type cable tray to be connected on the upper part of the cable tray connector, aligning it with the middle of the cable tray connector. Press down on the end or component joint of the reinforced trough-type cable tray, allowing it to slide past the upper edge of the reinforcing rib of the connector and then snap into the cable tray connector. The cable tray trough-type reinforcing ribs at the bottom of the cable tray base plate and the component joint trough-type reinforcing ribs at the bottom of the connector base plate should correspond one-to-one and be in close contact.

[0016] Step 4: Repeat Step 3 to install the other reinforced trough-type cable tray or cable tray adapter that needs to be connected.

[0017] Step 5: Use the observation hole to check and ensure that the joint between the two reinforced trough cable trays or the reinforced trough cable tray and the cable tray transition component is located in the middle of the cable tray connector to ensure a firm connection.

[0018] Step 6: Connect the cable tray grounding wire;

[0019] Step 7: After the internal cables are laid, install the cable tray cover and component cover.

[0020] The boltless connection slotted cable tray provided by this utility model has the following advantages:

[0021] 1. Fewer accessories and convenient installation: This utility model only requires one cable tray connector to connect two trough-type cable trays or trough-type cable trays and cable tray transition components. No installation bolts are required, making operation simple and installation quick and easy, solving the problem of low installation efficiency in traditional trough-type cable tray installation.

[0022] 2. High connection strength: The trough-type cable tray and cable tray connectors of this utility model adopt an integrated molding process without welds. The design of the reinforcing ribs greatly improves the bending resistance of the connection and greatly improves the structural strength of the connection.

[0023] 3. Convenient for inspection and maintenance: The observation hole on the bottom plate of the connector allows for quick and easy inspection of the connection status of the cable tray installed at a high location. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a front view of the reinforced trough-type cable tray of this utility model;

[0026] Figure 3 This is a top view of the reinforced trough-type cable tray of this utility model;

[0027] Figure 4 This is a side view of the reinforced trough-type cable tray of this utility model;

[0028] Figure 5 This is a front view of the cable tray connector of this utility model;

[0029] Figure 6 This is a top view of the cable tray connector of this utility model;

[0030] Figure 7 This is a side view of the cable tray connector of this utility model;

[0031] Figure 8 This is a structural schematic diagram of the reinforced trough-type cable tray tee of this utility model;

[0032] Figure 9 This is a top view of the reinforced trough-type cable tray tee of this utility model;

[0033] Figure 10 This is a side view of the reinforced trough-type cable tray tee of this utility model;

[0034] Figure 11This is a schematic diagram of the structure of the cover plate of the three-way component of this utility model;

[0035] Figure 12 This is a front view of the cable tray cover plate of this utility model;

[0036] Figure 13 This is a top view of the cable tray cover plate of this utility model;

[0037] Figure 14 This is a side view of the cable tray cover plate of this utility model;

[0038] Figure 15 This is a front view of the reinforced trough-type cable tray and cable tray connector assembly of this utility model;

[0039] Figure 16 This is an enlarged view of the reinforced trough-type cable tray and cable tray connector assembly of this utility model;

[0040] Figure 17 This is a top view of the reinforced trough-type cable tray and cable tray connector assembly of this utility model;

[0041] Figure 18 This is a side view of the reinforced trough-type cable tray and cable tray connector assembly of this utility model.

[0042] In the diagram: 1. Reinforced trough-type cable tray; 101. Cable tray base plate; 102. Cable tray side plate; 103. Cable tray upper edge reinforcing rib; 104. Cable tray trough-shaped reinforcing rib; 105. Cable tray grounding wire reserved connection hole; 2. Cable tray connector; 201. Connector base plate; 202. Connector side plate; 203. Connector upper edge reinforcing rib; 204. Connector trough-shaped reinforcing rib; 205. Observation hole; 3. Reinforced trough-type cable tray tee; 301. Tee structure main body; 302. Component joint; 303. Tee cover plate; 304. Component joint base plate; 305. Component joint side plate; 306. Component joint upper edge reinforcing rib; 307. Component joint trough-shaped reinforcing rib; 4. Cable tray cover plate; 401. Cover plate flat plate; 402. Cover plate reinforcing rib. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] The following is an example using a 300*100 trough-type cable tray and a cable tray tee:

[0045] like Figure 1As shown, a boltless trough-type cable tray includes a reinforced trough-type cable tray 1, a cable tray connector 2, a cable tray transition component, and a cable tray cover plate 4.

[0046] like Figures 2-4 As shown, the reinforced trough-type cable tray 1 includes a cable tray base plate 101, cable tray side plates 102, and upper edge reinforcing ribs 103. Three cable tray trough-shaped reinforcing ribs 104 are machined at each end of the bottom of the cable tray base plate 101. The spacing between the cable tray trough-shaped reinforcing ribs 104 is equal, and the distance from both ends to the edge is symmetrical and equal. The cable tray trough-shaped reinforcing ribs 104 protrude outwards. A cable tray grounding wire pre-reserved connection hole 105 is machined at each end of the two cable tray side plates 102 for installing the cable tray grounding wire. The reinforced trough-type cable tray 1 is integrally bent from 1.5mm galvanized steel sheet, with a single unit length of 2 meters. The cable tray base plate 101 is 300mm wide, the cable tray side plates 102 are 100mm high, and the side length of the upper edge reinforcing ribs 103 is 10mm. The angle between the cable tray side plates 102 and the upper edge reinforcing ribs 103 is 90°. Each cable tray trough-shaped reinforcing rib 104 has a width of 15mm and a distance of 40mm from the end. The spacing between the cable tray trough-shaped reinforcing ribs 104 is 20mm. Two sets of cable tray trough-shaped reinforcing ribs 104 are symmetrically distributed at both ends of the base plate. The cable tray side plate 102 has cable tray grounding wire reserved connection holes 105 at both ends. The diameter of the cable tray grounding wire reserved connection holes 105 is 10mm and the distance from the end is 140mm.

[0047] like Figures 5-7 As shown, the cable tray connector 2 includes a connector base plate 201, a connector side plate 202, and a connector upper edge reinforcing rib 203. Three connector groove-shaped reinforcing ribs 204 are symmetrically machined on both sides of the bottom of the connector base plate 201, and an observation hole 205 is machined in the middle of the connector base plate 201. The cable tray connector 2 is made of 1.5mm galvanized steel sheet by integral bending, with a length of 240mm. The bottom plate 201 of the connector is 303mm wide, the side plate 202 of the connector is 103mm high, and the side length of the upper reinforcing rib 203 of the connector is 10mm. The upper reinforcing rib 203 of the connector is divided into two sections. The lower section connects to the side plate 202 and extends obliquely upward in the outward direction, while the upper section connects to the lower section and extends horizontally inward. Three cable tray channel-shaped reinforcing ribs 204 are processed at each end of the bottom of the bottom plate 201. The width of a single cable tray channel-shaped reinforcing rib 104 is 15mm and the distance from the end is 40mm. The spacing between the cable tray channel-shaped reinforcing ribs 104 is 20mm, and the spacing between two sets of cable tray channel-shaped reinforcing ribs 104 is 60mm. An observation hole 205 with a size of 100mm*40mm is processed in the middle of the bottom plate 201 of the connector.

[0048] like Figures 8-11As shown, the cable tray transition component includes a main component structure, component connectors 302, and component cover plates. The main component structure can be any type of component such as elbows, tees, or crosses; the number of component connectors 302 is determined according to the form of the main component structure: two for elbows, three for tees, and four for crosses. Each component connector 302 has a pre-drilled connection hole 105 for the cable tray grounding wire.

[0049] Taking the reinforced trough-type cable tray tee 3 as an example, each reinforced trough-type cable tray tee 3 includes a tee structure body 301 and three component joints 302. Each component joint 302 includes a component joint base plate 304, a component joint side plate 305 and a component joint upper edge reinforcing rib 306. Three component joint groove-shaped reinforcing ribs 307 are machined on the bottom of the component joint base plate 304. The reinforced trough-type cable tray tee 3 is made of 1.5mm galvanized steel sheet through bending and welding. The main body 301 of the tee structure is a tee structure. There are three component joints 302, located at the three connection ports of the tee, each component joint 302 being 120mm long. The component joint base plate 304 is 120mm long and 300mm wide, the component joint side plate 305 is 120mm long and 100mm high, and the side length of the reinforcing ribs 306 along the upper edge of the component joint is 10mm. Three component joint trough-shaped reinforcing ribs 307 are machined on the bottom of the component joint base plate 304. Each cable tray trough-shaped reinforcing rib 104 is 15mm wide and 40mm from the end, and the spacing between the cable tray trough-shaped reinforcing ribs 104 is 20mm. The two ends of the component joint side plate 305 are machined with cable tray grounding wire reserved connection holes 105, which are 10mm in diameter and 140mm from the end. The 303 tee cover plate is made of 1.5mm galvanized steel sheet through a one-piece bending process, with a width of 303mm, and its shape is consistent with the top opening of the tee. The principle of other elbows, crosses, and other components is similar to that of the tee, and will not be described in detail here.

[0050] The positions of the cable tray trough reinforcing rib 104 and the connector trough reinforcing rib 204 correspond one-to-one, and the positions of the component joint trough reinforcing rib 307 and the connector trough reinforcing rib 204 correspond one-to-one; the observation hole 205 is used to observe from the bottom side whether the cable tray joint is tightly connected after installation.

[0051] like Figures 12-14 As shown, the cable tray cover plate 4 has the same shape as the upper opening of the reinforced trough-type cable tray 1 or component joint 302, and includes a cover plate flat plate 401 and cover plate reinforcing ribs 402. The cover plate flat plate 401 and the cover plate reinforcing ribs 402 are integrally formed from a single piece of galvanized steel sheet with folded edges, and the angle between the cover plate flat plate 401 and the two cover plate reinforcing ribs 402 is 60°. The cable tray cover plate 4 is integrally bent from a 1.5mm galvanized steel sheet, with a width of 303mm.

[0052] This embodiment achieves boltless, rapid installation through the snap-fit ​​connection between the cable tray connector 2, the reinforced trough-type cable tray 1, and the component joint 302. The observation hole 205 ensures a tight fit. The cable tray side plate 102 and the component joint side plate 305 are equipped with reserved connection holes 105 for the cable tray grounding wire, ensuring reliable grounding. The cable tray cover plate 4 adopts an integrated folded edge forming design with two cover plate reinforcing ribs 402, improving the overall strength of the cover and eliminating the need for traditional clips for fixation. This utility model has advantages such as convenient installation, stable structure, and easy maintenance, and is suitable for wire and cable laying projects.

[0053] like Figures 15-18 As shown, the installation process is as follows:

[0054] Step 1: Based on the site conditions and cable tray installation requirements, fabricate and install the cable tray support frame. The clear width of the crossarm of the cable tray support frame should be 400mm, with sufficient space reserved on both sides for cable tray installation operations. This step is the same as traditional cable tray installation and will not be described in detail again.

[0055] Step 2: Select the two reinforced trough-type cable trays 1 or reinforced trough-type cable tray 1 and reinforced trough-type cable tray tee 3 that need to be connected, select the cable tray connectors 2 with the appropriate specifications, and determine the installation position;

[0056] Step 3: Place the end or component joint 302 of the reinforced trough-type cable tray 1 to be connected on the upper part of the cable tray connector 2, aligning it with the middle part of the cable tray connector 2. Press the end or component joint 302 of the reinforced trough-type cable tray 1 so that it slides over the upper edge reinforcing rib 203 of the connector and then snaps into the cable tray connector 2. The three cable tray trough-type reinforcing ribs 104 at the bottom of the cable tray base plate 101 or the three component joint trough-type reinforcing ribs 307 at the bottom of the component joint base plate 304 correspond one-to-one with the three connector trough-type reinforcing ribs 204 at the bottom of the connector base plate 201 and are in close contact.

[0057] Step 4: Repeat Step 3 to install the other reinforced trough cable tray 1 or reinforced trough cable tray tee 3 that needs to be connected;

[0058] Step 5: Use the observation hole 205 to check and ensure that the joint of the two reinforced trough cable trays 1 or the joint of the reinforced trough cable tray 1 and the reinforced trough cable tray tee 3 is located in the middle of the cable tray connector 2, and ensure that the connection is firm.

[0059] Step 6: Connect the cable tray grounding wire, which should be approximately 350mm long.

[0060] Step 7: After the cables inside the cable tray are laid, install the cable tray cover plate 4 and the tee cover plate 303.

[0061] The above installation method makes the installation of cable trays convenient and quick, and the interface strength is high, which solves the problems of many accessories and low installation efficiency of traditional cable trays.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boltless grooved cable tray, characterized in that, The system includes reinforced trough-type cable trays, cable tray connectors, cable tray transition components, and cable tray cover plates. The reinforced trough-type cable trays include a base plate, side plates, and upper edge reinforcing ribs. Multiple trough-shaped reinforcing ribs are provided at both ends of the base plate. The cable tray connectors are trough-shaped and include a base plate, side plates, and upper edge reinforcing ribs. Two sets of symmetrical trough-shaped reinforcing ribs are provided at the bottom of the base plate, and an observation hole is provided in the center of the base plate. The cable tray transition components include the main structural body, joints, and cover plates. Each component... The component connector includes a component connector base plate, a component connector side plate, and a component connector upper edge reinforcing rib. The bottom of the component connector base plate is provided with multiple component connector groove-shaped reinforcing ribs. The reinforced trough-type cable tray and the component connector can be pressed through the upper edge reinforcing ribs of the connector. The cable tray groove-shaped reinforcing ribs and the component connector groove-shaped reinforcing ribs can be inserted into the connector groove-shaped reinforcing ribs. The upper edge reinforcing ribs of the connector block above the upper edge reinforcing ribs of the cable tray and the upper edge reinforcing ribs of the component connector. The cable tray cover plate is closed and locked on the reinforced trough-type cable tray and the cable tray connecting frame, including the cover plate flat plate and the cover plate reinforcing ribs.

2. The boltless cable tray according to claim 1, characterized in that, The upper reinforcing rib of the connector is divided into two sections. The lower section connects to the side plate of the connector and extends obliquely upward in the outward direction, while the upper section connects to the lower section and extends horizontally inward.

3. The boltless cable tray according to claim 2, characterized in that, The included angle between the cover plate and the cover plate reinforcing rib is greater than the included angle between the two sections of the upper edge reinforcing rib of the connector and less than 90°.

4. The boltless cable tray according to claim 1, characterized in that, Three cable tray-shaped reinforcing ribs are machined at the bottom of both ends of the cable tray base plate. The spacing between the three cable tray-shaped reinforcing ribs is equal, and the spacing from both ends to the edge is symmetrical and equal.

5. The boltless cable tray according to claim 4, characterized in that, Six connecting groove-shaped reinforcing ribs are machined on the bottom of the connector base plate, and the positions of the connecting groove-shaped reinforcing ribs correspond one-to-one with the positions of the cable tray groove-shaped reinforcing ribs.

6. The boltless cable tray according to claim 1, characterized in that, The reinforced trough-type cable tray is made from a single piece of galvanized steel sheet with folded edges, and the joints between them are at 90°.

7. The boltless cable tray according to claim 1, characterized in that, Both ends of the cable tray side plate and the end of the component joint side plate are machined with reserved connection holes for cable tray grounding wire, which are used to install the cable tray grounding wire.

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