Hook type support for ramp cable trench

Abstract

The invention discloses a hook type support for a ramp cable trench, and belongs to the technical field of cable trench supports, the support comprises a first vertical rod, a first shackle, a fixed column and a first support arm, the first vertical rod is hung on the fixed column through the first shackle, the first support arm comprises a first support rod, and the first support rod is provided with an arc-shaped surface. The first vertical rod is hung on the fixing column through the first shackle, the first vertical rod can swing left and right, and when the device is used in a ramp cable trench, the first vertical rod can swing left and right to a corresponding vertical angle according to the inclination angle of a cable, so that the cable is vertically pressed on the first supporting rod, stable support is formed, and the device is suitable for cable trenches with various inclination angles; the upper end face of the first supporting rod is an arc-shaped face and is suitable for supporting a cable with multiple inclination angles, no sharp angle extrudes the cable, and an external insulating layer of the cable is protected. The first shackle adopts a shackle type shaft pin sensor, so that the weight borne by the first supporting arm can be monitored, and the normal operation of the cable is effectively protected.

Description

Technical Field

[0001] The invention belongs to the technical field of cable trench supports, and in particular relates to a hook-type support for a ramp cable trench. Background Art

[0002] The cable trench is an underground pipeline used for laying power or communication cable facilities. It is also the enclosure structure of the laid cable facilities. Outdoor cable trenches are generally made of prefabricated concrete blocks. When the cables are laid in the cable trench, they are usually supported by brackets. The brackets can be set up in multiple layers on the side walls of the cable trench to support the cables. When setting up a cable trench on a ramp, the cable trench needs to be set to have a certain slope to guide the cables to extend up and down. The existing cable trench brackets are generally suitable for horizontal laying. When setting up the ramp cable trench, if the brackets are installed vertically, they cannot support the inclined cables well. In order to make the support surface of the bracket arm as parallel to the cable as possible, the bracket needs to be tilted at a certain angle when each bracket is installed. It is necessary to draw multiple inclined auxiliary lines, punch holes, and position. The installation process is cumbersome and prone to errors. Summary of the invention

[0003] In view of the above problems existing in the prior art, the technical problem to be solved by the present invention is to provide a hook-type bracket for a ramp cable trench to stably support the cables in the inclined cable trench and reduce the difficulty of installation.

[0004] Technical solution: In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A hook-type bracket for a ramp cable trench comprises a first vertical pole, a first shackle connected to the first vertical pole, a fixed column movably connected to the first shackle and used to be connected to the side wall of the cable trench, and a first supporting arm connected to the first vertical pole, wherein the first vertical pole is hung on the fixed column through the first shackle, and the first supporting arm comprises a first supporting rod, and the first supporting rod is provided with an arc surface.

[0006] Preferably, a first hook is connected to the top end of the first vertical pole, and the first vertical pole is hung on the first shackle through the first hook.

[0007] Preferably, the first shackle is a shackle-type axle pin sensor, and the first vertical rod and the first supporting arm form a downward pulling force on the first shackle.

[0008] Preferably, a limiting groove corresponding to the first shackle is provided on the fixing column, and when the first shackle is hung on the limiting groove, the first shackle is movably suspended from the fixing column.

[0009] Preferably, a back plate is connected to the back side of the first upright pole.

[0010] Preferably, a temperature sensor is provided on the first vertical pole, and a liquid level switch is provided at the lower end of the first vertical pole.

[0011] Preferably, the first vertical rod is provided with a first socket electrically connected to the first shackle, the temperature sensor and the liquid level switch

[0012] Preferably, more than one first supporting arm is provided, and the first supporting arm is detachably connected to the first vertical pole.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] 1. By setting the first vertical pole, the first shackle and the fixed column, the first vertical pole is suspended on the fixed column through the first shackle, and the first vertical pole can swing left and right. When used in the ramp cable trench, the bracket installation does not need to find the angle. According to the inclination angle of the cable, the first vertical pole can be swung left and right to the corresponding vertical angle, so that the cable is vertically pressed on the first support rod. The first support rod forms a stable support for the cable, which is suitable for the use of cable trenches with various inclination angles;

[0015] 2. The upper end surface of the first support rod is an arc-shaped surface, which is suitable for supporting cables at multiple inclined angles. There is no sharp corner to squeeze the cable, protecting the external insulation layer of the cable;

[0016] 3. The first shackle is hung on the limit groove of the fixed column, and the first vertical pole is hung on the first shackle through the hook. The installation is convenient and quick, and no operations such as tightening bolts are required. The connection between the first vertical pole and the fixed column can be completed without tools such as wrenches;

[0017] 4. The first shackle adopts a shackle-type axle pin sensor, which can monitor the weight carried on the first bracket. When a bracket falls off in the cable trench, the first shackle on the adjacent hook-type bracket can measure the weight change and issue an alarm, which is convenient for the staff to find the bracket falling off and effectively protect the normal operation of the cable;

[0018] 5. When the top cover of the cable trench is damaged by an external heavy object, the external heavy object falls into the cable trench and presses on the bracket. The first shackle on the hook bracket can measure the weight change and sound an alarm, making it easy for the staff to find that there is a heavy object invading the cable trench, effectively protecting the normal operation of the cable;

[0019] 6. A temperature sensor and a liquid level switch are installed on the first vertical pole, which can give early warning of fire in the cable trench and water accumulation in the cable trench. After the alarm, it is also convenient for staff to arrive at the scene quickly to ensure the safe operation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the hook-type bracket structure of an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the first supporting arm structure of the embodiment;

[0022] Figure 3 This is a schematic diagram of the structure of the first hook of the embodiment;

[0023] Figure 4 is a schematic diagram of the front structure of the first upright pole of the embodiment;

[0024] Figure 5 is a schematic diagram of the first shackle structure of the embodiment;

[0025] Figure 6 is a schematic diagram of the structure of the bracket in use state of the embodiment;

[0026] Figure 7 2 is a schematic diagram of the distribution structure of brackets on the first side wall of the ramp cable trench of the embodiment;

[0027] Figure 8 It is a schematic diagram of a state in which an inclined cable in a ramp cable trench of an embodiment is pressed on a first supporting rod. DETAILED DESCRIPTION

[0028] The present invention is further illustrated below in conjunction with specific examples. The examples are implemented based on the technical solutions of the present invention. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1 , Figure 3 and Figure 4As shown, a hook-type bracket for a ramp cable trench is used. The bracket of this embodiment is used to be installed in a cable trench 9. The cross section of the cable trench 9 is U-shaped. The cable trench 9 adopts an existing reinforced concrete cable trench. A steel skeleton is preset in the mold, and then concrete is poured. After curing and demolding, it is formed. When in use, the upper cover is provided with a top cover. The cable trench 9 includes a first side wall 91, a second side wall 92 and a bottom plate 93. In this embodiment, the cable trench 9 is high at one end and low at the other end with a certain inclination angle, and is used in a ramp. The hook-type bracket of this embodiment includes a first upright pole 1, a first shackle 2, a fixed column 3 and a first bracket 4. The fixed column 3 is a cylinder. The fixed column 3 is arranged perpendicular to the first side wall 91. The fixed column 3 is connected to the first connecting plate 32. The first connecting plate 32 is connected to the first side wall 91 by four expansion bolts 33. The fixed column 3 and the first connecting plate 32 are fixed to the upper part of the first side wall 91 by expansion bolts. The fixed column 3 is provided with a limiting groove 31 corresponding to the first shackle 2. When the first shackle 2 is hung on the limiting groove 31, the first shackle 2 and the fixed column 3 are movably suspended. The first shackle 2 can swing left and right. Restricted by the limiting groove 31, the first shackle 2 cannot move in the front and rear directions. A top plate 111 is provided at the top end of the first vertical pole 1. A first hook 11 is provided on the top plate 111. The first vertical pole 1 is hung on the first shackle 2 through the first hook 11, so that the first vertical pole 1 is suspended on the fixed column 3 through the first shackle 2, and the fixed column 3 bears the overall weight of the bracket.

[0030] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the first bracket arm 4 is connected to the first upright pole 1, and three first bracket arms 4 are provided (the number of first bracket arms 4 can be more as needed), and the three first bracket arms 4 are arranged at equal distances from top to bottom. The first bracket arm 4 includes a first bracket rod 41 and a first bracket plate 42 vertically arranged with the first bracket rod 41. A row of first adjustment holes 102 is provided in the middle of the front of the first upright pole 1, and the bracket arm bolts 43 match the first adjustment holes 102. The first bracket plate 42 is detachably connected to the first upright pole 1 through the upper and lower bracket arm bolts 43, and is connected by connecting The height of the first support arm 4 is adjusted by connecting the first adjustment holes 102 of different heights. After the connection, the first support rod 41 is perpendicular to the first vertical pole 1. The upper end surface of the first support rod 41 is an arcuate surface 411. Multiple cables 99 are laid along the length direction of the cable trench 9. The first support rod 41 supports the multiple cables 99 from below. When the first support rod 41 supports the cable 99, the arcuate surface 411 directly supports the cable 99 without sharp corners to squeeze the insulation layer of the cable 99. The first support arms 4 of different heights are used to support multiple cables 99 of different heights.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, the first shackle 2 is a shackle-type axle pin sensor, the first shackle 2 includes a buckle ring 21, an axle pin sensor 22 and a locking nut 23, the buckle ring 21 is a circular ring, the arc portion of the buckle ring 21 is used to hang on the fixed column 3, the axle pin sensor 22 passes through the connecting hole of the buckle ring 21 and is threadedly connected with the locking nut 23, the first hook 11 is hung on the axle pin sensor 22, the first shackle 2 is used to measure the downward pulling force generated by the first upright 1 and the first support arm 4, when the first support arm 4 is laid with a cable, the weight of the cable generates a downward pulling force, the first shackle 2 adopts an existing shackle-type axle pin sensor, such as the brand: Ruierte, the T905 series shackle-type axle pin sensor produced, the measuring range can be customized, from tens of kilograms to several tons, the elastic deformation of the material is used to convert the tension suffered into an electrical signal.

[0032] like Figure 1 , Figure 4 and Figure 8As shown, a back plate 5 is connected to the back of the first vertical pole 1, and the back plate 5 is used to support the first vertical pole 1 from the back. The back plate 5 makes the first vertical pole 1 parallel to the first side wall 91. When the bracket is used in the cable trench 9 of the ramp, the fixing column 3 is first connected to the first side wall 91 through the expansion bolt 33. Since the cable trench 9 has a certain slope, the position of the fixing column 3 is first marked with a marking line. The fixing columns 3 are arranged at intervals and have the same distance to the top of the cable trench 9. After the fixing columns 3 are fixed, the buckle 21 of the first shackle 2 is hung on the limiting groove 31 of the fixing column 3. The first vertical pole 1 and the first supporting arm 4 form a downward pulling force on the first shackle 2 under the action of gravity. The gravity always acts vertically downward. The first vertical pole 1 is vertical and perpendicular to the horizontal plane when not supporting the cable. When multiple cables are laid on the first supporting arm 4, the weight of the multiple cables distributed on the corresponding first supporting arm 4 also forms a pulling force on the first shackle 2. In this embodiment, the height of the cable trench 9 gradually increases from left to right, and the height of the cable 99 to the right also gradually increases to form an inclined arrangement. Since the first vertical pole 1 is hung on the fixed column 3 through the first shackle 2, the first vertical pole 1 can swing left and right, and can swing right to the vertical angle corresponding to the cable 99. The larger the inclination angle of the cable, the larger the angle of swing to the right, so that the weight of the cable 99 forms a pressure perpendicular to the first supporting rod 41 on the first supporting rod 41. The upper end surface of the first supporting rod 41 is an arc-shaped surface 411, which can form a stable support for the cable 99. When the inclination angle of the cable 99 is large, the relative position of the first supporting rod 41 and the cable 99 is fixed, which also facilitates the cable 99 and the first supporting rod 41 to be tied together. The hook-type bracket of this embodiment is generally suitable for cable trenches with an inclination angle of no more than 20°. When the cables on each layer of the first bracket 4 are installed, the first bracket 4 shares a portion of the weight of the multiple cables. At this time, the first shackle 2 is peeled, and the measured value of the first shackle 2 after peeling is zero (under the weight of multiple cables, the back of the first vertical pole 1 is attached to the first side wall 91, and part of the weight will be distributed to the first side wall 91 for support, but the weight distributed after peeling has little effect on the weight). During operation, the cables and brackets in the cable trench 9 will not have a large weight change, unless individual brackets fall off, causing the weight of the cables shared on the adjacent brackets to change, or the cover of the cable trench 9 is damaged. If an external heavy object falls into the cable trench 9 and presses on the bracket, it will cause a significant change in the measured value of the first shackle 2. The first shackle 2 sets an alarm value X. The smaller the setting value of X, the more sensitive the first shackle 2 is. In this embodiment, X=10KG. When the first shackle 2 measures a weight greater than X or less than -X, for example, 13KG or -13KG is monitored (a negative value will be generated when the first bracket 4 and the cable fall off, and the peeled value already includes the cable weight), a signal is sent out, and the signal is transmitted to the external monitoring system through the wiring of the sensor. The staff can handle it after receiving the alarm.

[0033] like Figure 6 and Figure 7As shown, two rows of brackets are arranged in the cable trench 9 along the length direction, and the two rows of brackets are symmetrically arranged. A row of brackets is respectively arranged on the first side wall 91 and the second side wall 92. The brackets include the hook-type bracket of the present embodiment and the second bracket. The second bracket adopts an ordinary bracket. The second bracket includes a second vertical pole 8 and a second bracket arm 84. A second column 83 is arranged at a position corresponding to the fixed column 3 on the second side wall 92. The shape and size of the second column 83 are the same as those of the fixed column 3. A second shackle 82 is hung on the second column 83. The second shackle 82 adopts an ordinary shackle. A second hook 81 is arranged at the top of the second vertical pole 8. The second vertical pole 8 is hung on the second shackle 82 through the second hook 81. The second bracket arm 84 is symmetrically arranged with the first bracket arm 4 and is at the same height. Adjacent brackets in each row of brackets are arranged at an interval of 50 cm. The present embodiment The hook-type brackets are arranged at intervals of 5 meters along the length direction in the cable trench 9, and the remaining brackets all use the second bracket. The hook-type brackets of this embodiment can be arranged at intervals on the first side wall 91 and the second side wall 92 (the hook-type brackets of this embodiment are also arranged at intervals on the second side wall 92), thereby reducing the number of hook-type brackets used in this embodiment, reducing the cost of use, and being able to perform good monitoring in the length direction of the cable. When an external heavy object smashes the cable trench 9 and falls on the bracket, it will cause squeezing and damage to the cable. Sometimes the cable has not been damaged yet, so it cannot be grasped in time. In this implementation, the first shackle 2 can alarm when it detects a large weight change, and promptly reminds the staff. When individual brackets fall off, the weight change is shared on the adjacent brackets. The first shackle 2 can also alarm when it detects that the weight change exceeds the alarm value. Since the second bracket is also suspended on the second column 83 using a shackle, the second upright 8 of the second bracket can also swing to adapt to supporting the inclined cable 99.

[0034] like Figure 1 and Figure 4As shown, the first vertical pole 1 is provided with a temperature sensor 6, which is arranged on the side of the first vertical pole 1. The temperature sensor 6 adopts an existing fire-fighting temperature sensor, such as the NTC temperature sensor of the Tepuson brand. When a fire occurs in the cable trench 9, the temperature rises, and the temperature sensor 6 sends a signal to the outside to notify the staff. The lower end of the first vertical pole 1 is provided with a liquid level switch 7, which adopts an existing tuning fork liquid level switch, such as the MAT-YC20 tuning fork liquid level switch produced by Jiangsu Meiant Automation Instrument Co., Ltd. When the water level in the cable trench 9 exceeds the tuning fork probe, the liquid level switch 7 sends a signal to the outside to notify the staff. The first vertical pole 1 is provided with a first socket 13, and the first socket 13 is electrically connected to the first shackle 2, the temperature sensor 6 and the liquid level switch 7. The temperature sensor 6 and the liquid level switch 7 are provided with wiring inside the first vertical pole 1 and connected to the first socket 13, and the side of the first shackle 2 is provided with wiring connected to the first socket 13, so that the wiring of the three sensors is unified and connected to the outside. The length of the cable trench 9 sometimes reaches several kilometers or even dozens of kilometers. The first shackle 2, the temperature sensor 6 and the liquid level switch 7 can be sequentially coded respectively to correspond to their positions in the cable trench 9, so that the staff can grasp the alarm position and arrive at the scene in time.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hook-type bracket for a ramp cable trench, characterized in that: The invention comprises a first vertical pole (1), a first shackle (2) connected to the first vertical pole (1), a fixing column (3) movably connected to the first shackle (2) and used for connecting to the side wall of the cable trench, and a first supporting arm (4) connected to the first vertical pole (1), the first vertical pole (1) being hung on the fixing column (3) via the first shackle (2), the first supporting arm (4) comprising a first supporting rod (41), and the first supporting rod (41) being provided with an arcuate surface (411).

2. The hook-type bracket for ramp cable trench according to claim 1, characterized in that: A first hook (11) is connected to the top end of the first vertical pole (1), and the first vertical pole (1) is hung on the first shackle (2) via the first hook (11).

3. The hook-type bracket for ramp cable trench according to claim 1, characterized in that: The first shackle (2) is a shackle-type axle pin sensor, and the first vertical rod (1) and the first supporting arm (4) form a downward pulling force on the first shackle (2).

4. The hook-type bracket for ramp cable trench according to claim 1, characterized in that: The fixing column (3) is provided with a limiting groove (31) corresponding to the first shackle (2); when the first shackle (2) is hung on the limiting groove (31), the first shackle (2) and the fixing column (3) are movably suspended.

5. The hook-type bracket for ramp cable trench according to claim 1, characterized in that: The back side of the first upright pole (1) is connected to a back plate (5).

6. The hook-type bracket for ramp cable trench according to claim 1, characterized in that: A temperature sensor (6) is provided on the first vertical pole (1), and a liquid level switch (7) is provided at the lower end of the first vertical pole (1).

7. The hook-type bracket for a ramp cable trench according to claim 6, characterized in that: The first vertical pole (1) is provided with a first socket (13) electrically connected to the first shackle (2), the temperature sensor (6) and the liquid level switch (7).

8. The hook-type bracket for a ramp cable trench according to claim 1, characterized in that: More than one first support arm (4) is provided, and the first support arm (4) is detachably connected to the first upright pole (1).

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