High-strength connecting piece for cable trench support

Abstract

The utility model relates to the technical field of cable supports, in particular to a high-strength connecting piece for a cable trench support, which comprises a supporting base and an extension plate which are used for supporting a cable, the supporting base and the extension plate are connected and fixed through a connecting seat, an outer shell is fixed on the inner wall of a working well through bolts, and an inner sliding groove is formed in the outer shell. A connecting rod is slidably connected into the inner sliding groove, a plurality of cavities are formed in the connecting rod, rotating rods are arranged in the cavities, rotating grooves matched with the rotating rods are formed in the fixed base, a limiting opening is formed in the outer shell and used for limiting the position of the fixed base, and the fixed base is used for fixing the supporting base. Through the design of the high-strength connecting piece, the bearing capacity and the safety of the cable trench support are remarkably improved, and the fracture accident of the support caused by insufficient strength of the connecting piece is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cable brackets, and particularly relates to a high-strength connecting piece for a cable trench bracket. Background Technique

[0002] Cable brackets are common facilities for fixing cables in cable trenches and tunnels. Traditional brackets are mostly made of metal and are fixed by welding or screws. After long-term use, to ensure the safety of the cables, the load-bearing parts of the brackets need to be regularly inspected. Due to the limitations of the fixing method of the existing brackets, the disassembly and inspection process is cumbersome and inefficient, which not only increases the maintenance cost but also may lead to safety accidents due to bracket damage.

[0003] Chinese Patent (CN215646030U) proposed a design of a detachable cable trench bracket that allows for its quick installation and disassembly. It is mainly fixed on the inner wall of the cable trench or manhole through a fixing plate, and a support plate is arranged thereon. Connecting plates are arranged in sequence on the support plate, and these connecting plates are connected by specific connecting pieces to form a stable bracket structure. The upper end surface of the bracket is equipped with a plurality of detachable cable fixing buckles, which are convenient for cable fixing and maintenance.

[0004] However, there are problems that the load strength cannot be determined and the applicable range is relatively fixed. Summary of the Utility Model

[0005] In view of the above problems, a high-strength connecting piece for a cable trench bracket is provided, which includes a support base and an extension plate for supporting the cable. The support base and the extension plate are connected and fixed through a connecting seat. The outer shell is fixed on the inner wall of the manhole through bolts. The outer shell is provided with an inner sliding groove, and a connecting rod is slidably connected in the inner sliding groove. The connecting rod is provided with a plurality of cavities, and a rotating rod is arranged in the cavities. The fixed base is provided with a rotating groove adapted to the rotating rod. The outer shell is provided with a limiting port for limiting the position of the fixed base, and the fixed base is used for fixing the support base.

[0006] Preferably, the connecting rod is provided with a first pin hole, and the outer shell is provided with a second pin hole. When the connecting rod slides downward in the inner sliding groove of the outer shell until the first pin hole coincides with the second pin hole, the fixed base extends outward from the limiting port of the outer shell, and a first positioning pin is inserted into the first pin hole and the second pin hole to achieve the purpose of fixation.

[0007] Preferably, the fixed base is provided with a first positioning hole, and the support base is provided with a first positioning block adapted to the first positioning hole for positioning and fixing with the fixed base. The support base is also provided with a reinforcing rib for enhancing the support strength.

[0008] Preferably, a second positioning hole is provided on the support base, a third positioning hole and a fourth positioning hole are provided on the extension plate, a second positioning block and a third positioning block are provided on the connecting seat, the second positioning block is adapted to the second positioning hole and the fourth positioning hole, the third positioning block is adapted to the third positioning hole, the connecting seat is inserted into the second positioning hole of the support base through the second connecting block, and at the same time is inserted into the third positioning hole of the extension plate through the third positioning block, so as to realize the connection between the support base and the extension plate.

[0009] Preferably, a positioning pin hole is provided on the first positioning block. After the first positioning block is inserted into the first positioning hole, the second positioning pin is inserted into the positioning pin hole for fixation. A jack for finger insertion is provided on the second positioning pin, and it is convenient to extract and insert the second positioning pin by inserting a finger into the jack.

[0010] Preferably, an upper sliding groove and a lower sliding groove are provided in the connecting seat. The upper sliding groove and the lower sliding groove are used for the movement of the sliding block. Limiting grooves are provided in the upper sliding groove and the lower sliding groove, and a moving groove for the second positioning block and the third positioning block to pass through is formed on the sliding block.

[0011] The beneficial effects of the present utility model compared with the prior art are as follows:

[0012] 1. By adopting high-strength connecting pieces, the overall load-bearing capacity of the cable trench bracket is significantly improved in the present utility model. This design is particularly suitable for occasions that need to support heavy cables or work in high-load environments. The strength and stability of the connecting pieces are the primary concerns when installing and adjusting the cable trench bracket. The connecting rod design of the present utility model allows it to slide freely in the inner sliding groove of the outer shell, providing flexibility in the vertical direction, while ensuring the smoothness and accuracy of the movement. This design not only enhances the durability of the bracket but also reduces the maintenance cost and potential safety risks caused by the fracture of the connecting pieces.

[0013] 2. The combined design of the outer shell and the connecting rod of the present utility model realizes the precise control and fixation of the position of the connecting piece through the ingenious inner sliding groove and pin hole mechanism. The combination of the limiting port on the outer shell and the pin hole on the connecting rod enables the fixed base to extend or retract outward from the limiting port stably. This design not only improves the convenience of installation and adjustment but also ensures the stability of the connecting piece under various usage conditions. In addition, the use of the positioning pin provides additional fixed protection for the connecting piece, further enhancing the reliability of the entire bracket system.

[0014] 3. The connection design between the support base and the connection seat of the present utility model realizes quick and accurate positioning and fixation through the adaptation of precise positioning holes and positioning blocks. This design simplifies the installation process, enabling the operator to easily install and adjust the cable trench bracket. The setting of the reinforcing ribs not only enhances the structural strength of the support base, enabling it to withstand greater loads and pressures, but also enhances the stability and safety of the entire bracket system. In addition, the design of the upper sliding groove and the lower sliding groove in the connection seat, in conjunction with the use of sliding blocks and limit grooves, further improves the strength of the connection seat and the stability of the overall device, ensuring the reliability and durability of the cable trench bracket during long-term operation. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional view of a high-strength connector for a cable trench bracket.

[0016] Figure 2 is an exploded view of the installation main body of a high-strength connector for a cable trench bracket.

[0017] Figure 3 is a three-dimensional view of the support main body of a high-strength connector for a cable trench bracket.

[0018] Figure 4 is a three-dimensional view of the fixed base and the support base of a high-strength connector for a cable trench bracket.

[0019] Figure 5 is an exploded view of the support main body of a high-strength connector for a cable trench bracket.

[0020] Figure 6 is a three-dimensional view of the connection seat of a high-strength connector for a cable trench bracket.

[0021] Figure 7 is the front view of the connection seat of a high-strength connector for a cable trench bracket.

[0022] Figure 8 is a high-strength connector for a cable trench bracket Figure 7 in the A-A cross-sectional view.

[0023] The reference numerals in the figure are: 1, connecting rod; 11, rotating rod; 12, first pin hole; 2, outer housing; 21, inner sliding groove; 22, limiting opening; 23, second pin hole; 3, fixed base; 31, rotating groove; 32, first positioning hole; 4, supporting base; 41, reinforcing rib; 42, first positioning block; 421, positioning pin hole; 43, second positioning hole; 5, extension plate; 51, third positioning hole; 52, fourth positioning hole; 6, connecting seat; 61, second positioning block; 62, third positioning block; 63, upper sliding groove; 64, lower sliding groove; 65, sliding block; 66, limiting groove; 67, moving groove; 7, first positioning pin; 8, second positioning pin; 81, jack. Detailed implementation mode

[0024] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0025] Refer to Figures 1 - 8 : A high-strength connector for a cable trench support, including a supporting base 4 for supporting cables and an extension plate 5. The supporting base 4 and the extension plate 5 are connected and fixed through a connecting seat 6. The outer housing 2 is fixed on the inner wall of the shaft well by bolts. The outer housing 2 is provided with an inner sliding groove 21. A connecting rod 1 is slidably connected in the inner sliding groove 21. The connecting rod 1 is provided with a plurality of cavities. A rotating rod 11 is arranged in the cavities. The fixed base 3 is provided with a rotating groove 31 adapted to the rotating rod 11. The outer housing 2 is provided with a limiting opening 22. The limiting opening 22 is used to limit the position of the fixed base 3. The fixed base 3 is used to fix the supporting base 4.

[0026] The strength of the connecting piece of the device in the comparative document is not high. When the load-bearing cable is too heavy, it may cause an accident of bracket fracture. In this regard, when installing or adjusting the cable trench bracket, the first concern is the strength and stability of the connecting piece. The high-strength connecting piece for the cable trench bracket designed by the present utility model significantly improves the load-bearing capacity and safety of the bracket through its unique structural design. The core component of the device is the connecting rod 1, which slides freely in the inner chute of the outer casing 2. This design allows the connecting rod 1 to move flexibly in the vertical direction while ensuring the smoothness and accuracy of the movement. The fixed seat is located in the cavity of the connecting rod 1 and is connected to the connecting rod 1 through a rotating rod 11. When the connecting rod 1 moves upward, the fixed seat will be retracted into the cavity of the connecting rod 1 under the action of the rotating rod 11. This process is realized through the limiting port 22 on the outer casing 2. The limiting port 22 ensures the stability and safety of the fixed seat during the retraction process. When the connecting rod 1 moves downward, the fixed seat extends outward through the limiting port 22. This process is reverse but equally stable and reliable. The outward extension of the fixed seat enables the device to be firmly fixed on the bracket, increasing the load-bearing capacity and stability of the bracket. The support base 4 is connected to the connecting rod 1 through the fixed seat, ensuring a firm connection between the device and the bracket. At the same time, the support base 4 is also connected to the extension plate 5 through the connecting seat 6. There are multiple extension plates 5 to adapt to different models of cables.

[0027] Refer to Figures 1 - 2 : The connecting rod 1 is provided with a first pin hole 12, and the outer casing 2 is provided with a second pin hole 23. When the connecting rod 1 slides downward in the inner chute 21 of the outer casing 2 until the first pin hole 12 coincides with the second pin hole 23, the fixed base 3 extends outward from the limiting port 22 of the outer casing 2, and the first positioning pin 7 is inserted into the first pin hole 12 and the second pin hole 23 to achieve the purpose of fixation.

[0028] The connecting rod 1 is provided with a first pin hole 12, and the outer casing 2 is provided with a second pin hole 23 at a specific position. When it is necessary to fix the position of the connecting rod 1, the connecting rod 1 will slide downward in the inner chute 21 of the outer casing 2 until the first pin hole 12 completely coincides with the second pin hole 23. At this time, the fixed base 3 will extend outward from the limiting port 22 of the outer casing 2 to ensure the stability of the connecting rod 1. Subsequently, the first positioning pin 7 will be inserted into the first pin hole 12 and the second pin hole 23, thereby locking the relative positions of the connecting rod 1 and the outer casing 2 to achieve the purpose of fixation.

[0029] Refer to Figures 3 - 5 : The fixed base 3 is provided with a first positioning hole 32, and the support base 4 is provided with a first positioning block 42 adapted to the first positioning hole 32 for positioning and fixing with the fixed base 3. The support base 4 is also provided with a reinforcing rib 41 for strengthening the support strength.

[0030] The fixed base 3 is one of the key components of the connecting piece. The first positioning hole 32 is provided thereon. The function of this positioning hole is to cooperate with the first positioning block 42 on the support base 4. The first positioning block 42 on the support base 4 is designed to be perfectly adapted to the first positioning hole 32 to ensure that the two can be closely combined. When installing or adjusting the cable trench support, the fixed base 3 is docked with the support base 4. During the docking process, the first positioning hole 32 on the fixed base 3 will be aligned with the first positioning block 42 on the support base 4. At this time, by inserting the first positioning block 42 into the first positioning hole 32, the precise positioning and fixation of the fixed base 3 and the support base 4 can be achieved. In addition, the support base 4 is also provided with reinforcing ribs 41. The function of these reinforcing ribs 41 is to increase the structural strength of the support base 4 so that it can withstand greater loads and pressures. Through the reinforcement of the reinforcing ribs 41, the support base 4 can more stably support the cable trench support, ensuring the stability and safety of the entire system.

[0031] Refer to Figures 3 - 5 : The support base 4 is provided with a second positioning hole 43. The extension plate 5 is provided with a third positioning hole 51 and a fourth positioning hole 52. The connecting seat 6 is provided with a second positioning block 61 and a third positioning block 62. The second positioning block 61 is adapted to the second positioning hole 43 and the fourth positioning hole 52. The third positioning block 62 is adapted to the third positioning hole 51. The connecting seat 6 is inserted into the second positioning hole 43 of the support base 4 through the second connecting block, and at the same time is inserted into the third positioning hole 51 of the extension plate 5 through the third positioning block 62 to realize the connection between the support base 4 and the extension plate 5.

[0032] First, the support base 4 is provided with a second positioning hole 43 for inserting the second positioning block 61 on the connecting seat 6. At the same time, the extension plate 5 is provided with a third positioning hole 51 and a fourth positioning hole 52. Among them, the fourth positioning hole 52 is also adapted to the second positioning block 61, and the third positioning hole 51 is inserted with the third positioning block 62 on the connecting seat 6. During the connection process, first insert the second positioning block 61 on the connecting seat 6 into the second positioning hole 43 of the support base 4 to ensure the preliminary positioning and fixation between the connecting seat 6 and the support base 4. Then, insert the third positioning block 62 on the connecting seat 6 into the third positioning hole 51 of the extension plate 5 to further stabilize the connection between the connecting seat 6 and the extension plate 5. The fourth positioning hole 52 on the extension plate 5 is also adapted to the second positioning block 61 on the connecting seat 6. When adding the extension plate 5, the second connecting block of the connecting seat 6 can be inserted into the fourth positioning hole 52 of the extension plate 5, and then the third positioning block 62 is inserted into the third positioning hole 51 of the added extension plate 5 to achieve the purpose of adding the extension plate 5.

[0033] Refer to Figures 3 - 8: A positioning pin hole 421 is provided on the first positioning block 42. After the first positioning block 42 is inserted into the first positioning hole 32, the second positioning pin 8 is inserted into the positioning pin hole 421 to achieve fixation. A jack 81 for finger insertion is provided on the second positioning pin 8, and it is convenient to extract and insert the second positioning pin 8 by inserting a finger into the jack 81.

[0034] After the first positioning block 42 is inserted into the first positioning hole 32 in place, the preliminary positioning between the two parts of the connecting piece is ensured. To further enhance the stability of the connection, the second positioning pin 8 is used to be inserted into the positioning pin hole 421 on the first positioning block 42. After the second positioning pin 8 is completely inserted into the positioning pin hole 421, the two connecting parts are firmly locked together to achieve stable fixation. To facilitate the user to operate the insertion and extraction of the second positioning pin 8, a jack 81 convenient for finger insertion is provided on the second positioning pin 8. Through this jack 81, the user can easily insert a finger and operate the second positioning pin 8 to make it quickly and conveniently inserted or extracted, thus simplifying the installation and disassembly process.

[0035] Refer to Figures 3 - 8 : An upper sliding groove 63 and a lower sliding groove 64 are provided in the connecting seat 6. The upper sliding groove 63 and the lower sliding groove 64 are used for the movement of the sliding block 65. Limiting grooves 66 are provided in the upper sliding groove 63 and the lower sliding groove 64, and a moving groove 67 for the second positioning block 61 and the third positioning block 62 to pass through is formed on the sliding block 65.

[0036] After the support base 4 extension plate 5 is connected to the extension plate 5 through the connecting seat 6, the sliding block 65 in the upper sliding groove 63 and the lower sliding groove 64 is pulled to limit the insertion part and prevent the connected connecting seat 6 from falling off the support base 4 extension plate 5 after insertion. And this design can also improve the strength of the connecting seat 6 and increase the overall strength of the device. To avoid interference between the sliding block 65 and the second positioning block 61 and the third positioning block 62, a moving groove 67 is formed on the sliding block 65. Through the setting of the moving groove 67, the sliding block 65 can smoothly slide in the upper sliding groove 63 and the lower sliding groove 64.

[0037] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A high-strength connector for a cable trench support, comprising a support base (4) and an extension plate (5) for supporting a cable, wherein the support base (4) and the extension plate (5) are connected and fixed via a connection seat (6), characterized in that: The outer shell (2) is fixed to the inner wall of the working well by bolts. The outer shell (2) is provided with an inner slide groove (21). A connecting rod (1) is slidably connected in the inner slide groove (21). The connecting rod (1) is provided with a plurality of cavities. A rotating rod (11) is provided in each cavity. A rotating groove (31) adapted to the rotating rod (11) is provided on the fixed base (3). A limiting opening (22) is provided on the outer shell (2). The limiting opening (22) is used to limit the position of the fixed base (3). The fixed base (3) is used to fix the supporting base (4).

2. A high-strength connector for a cable trench support according to claim 1, characterized in that: A first pin hole (12) is provided on the connecting rod (1), and a second pin hole (23) is provided on the outer shell (2). When the connecting rod (1) slides downward in the inner slide groove (21) of the outer shell (2) until the first pin hole (12) and the second pin hole (23) overlap, the fixing base (3) extends outward from the limiting opening (22) of the outer shell (2), and the first positioning pin (7) is inserted into the first pin hole (12) and the second pin hole (23), thereby achieving the purpose of fixing.

3. A high-strength connector for a cable trench support according to claim 1, characterized in that: The fixed base (3) is provided with a first positioning hole (32), the support base (4) is provided with a first positioning block (42) adapted to the first positioning hole (32) and used for positioning and fixing with the fixed base (3), and the support base (4) is also provided with a reinforcing rib (41) for enhancing the supporting strength.

4. A high-strength connector for a cable trench support according to claim 1, characterized in that: The support base (4) is provided with a second positioning hole (43), the extension plate (5) is provided with a third positioning hole (51) and a fourth positioning hole (52), the connection base (6) is provided with a second positioning block (61) and a third positioning block (62), the second positioning block (61) is adapted to the second positioning hole (43) and the fourth positioning hole (52), the third positioning block (62) is adapted to the third positioning hole (51), the connection base (6) is plugged into the second positioning hole (43) of the support base (4) through the second connecting block, and is plugged into the third positioning hole (51) of the extension plate (5) through the third positioning block (62), thereby realizing the connection between the support base (4) and the extension plate (5).

5. A high-strength connector for a cable trench support according to claim 3, characterized in that: The first positioning block (42) is provided with a positioning pin hole (421); when the first positioning block (42) is plugged into the first positioning hole (32), the second positioning pin (8) is plugged into the positioning pin hole (421) to achieve fixation; the second positioning pin (8) is provided with a plug hole (81) for inserting a finger; the insertion of a finger into the plug hole (81) facilitates the extraction and insertion of the second positioning pin (8).

6. A high-strength connector for a cable trench support according to claim 4, characterized in that: An upper slide groove (63) and a lower slide groove (64) are provided in the connecting seat (6), and the upper slide groove (63) and the lower slide groove (64) are used for the movement of the sliding block (65). A limiting groove (66) is provided in the upper slide groove (63) and the lower slide groove (64). The sliding block (65) is provided with a moving groove (67) for the second positioning block (61) and the third positioning block (62) to pass through.

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