Guiding device for vertical laying of ultra-long large-section cable in public building

Abstract

The utility model relates to a guide device for vertical laying of a super-long large-section cable in a public building, which comprises a connecting seat, a limiting plate, a rear guide wheel and a front guide wheel. Two limiting plates are arranged on the front side face of the connecting base. A vertical rear guide groove is formed in the upper edge of the limiting plate, and a rear screw of the rear guide wheel is arranged in the rear guide groove and locked through a rear nut. A vertical front guide groove is further formed in the upper edge of the limiting plate and the front side of the rear guide groove, and a front screw of the front guide wheel is arranged in the front guide groove and limited through a front nut. A channel for a cable to pass through is formed between the rear guide wheel and the front guide wheel. According to the utility model, the cable can be prevented from being separated in the conveying process and is convenient and rapid to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a guide device for vertically laying cables with super-long cross-sections in public buildings. Background Art

[0002] Cable laying is generally divided into horizontal laying, cable vertically upward laying, and cable vertically downward laying according to the laying direction;

[0003] During horizontal laying, the cable shaft is supported by a cable bracket, and cable rollers are placed in the horizontal section. The cable is pulled by a winch and laid manually under unified command and coordination. Cable pulleys are installed along the cable route and at turns to prevent damage to the cable.

[0004] The cable is laid vertically upwards, and the top of the cable with the metal mesh is connected to the winch wire rope through a swivel joint. During the lifting process, use a lifting rope with a strength of more than 4 times the weight of the cable, and check while lifting to avoid damage to the cable.

[0005] The cable is laid vertically downwards, using the kinetic energy of the cable being lowered from a high position. Through the wooden guide wheel and angle steel bracket, the guide wheel bears the horizontal force of the cable's gravity. Due to the rigidity and flexibility of the cable body, the elastic restoring force generated by its bending and gravity acts on the guide wheel. At the same time, since the cable sheath is made of rubber and plastic, it just increases the friction coefficient of its contact with the inner groove of the wooden guide wheel. In this way, through the friction of the guide wheel's rotation and the friction of the cable's rotation on the guide wheel, the gravity acceleration of the lowered cable is effectively reduced.

[0006] At present, in the process of laying down super-long and long cross-section cables vertically in public buildings, the following problems are found: due to the large cross-section of the cable, the guide wheel generally installed is prone to cable deviation and slippage during the process of guiding the cable, thus affecting the construction progress (such as Figure 3 shown). Utility Model Content

[0007] The utility model aims to provide a guide device for vertically laying cables with extra-long cross-sections in public buildings, which can prevent the cables from falling off during transportation and is convenient for quick disassembly and assembly.

[0008] A guide device for vertical laying of cables with extra-long cross-sections in public buildings, including a connection seat, a limit plate, a rear guide wheel and a front guide wheel;

[0009] Two limit plates are provided on the front side of the connecting seat;

[0010] A vertical rear guide groove is provided on the edge of the limit plate, and the rear screw of the rear guide wheel is placed in the rear guide groove and locked by a rear nut;

[0011] A vertical front guide groove is also provided on the edge of the limit plate and the front side of the rear guide groove, and the front screw of the front guide wheel is placed in the front guide groove and limited by the front nut;

[0012] A channel for the cable to pass through is formed between the rear guide wheel and the front guide wheel.

[0013] Compared with the previous technology, the beneficial effects of the utility model are:

[0014] 1. The double guide wheel design can realize the cable holding limit, and can prevent the cable from slipping while guiding the cable.

[0015] 2. The guide groove designed for the limit plate can realize the rapid separation of the guide wheel and the limit plate, so that the utility model can be separated from the building and the cable conveniently after use.

[0016] 3. The design of the tension spring ensures that during the movement of the cable, the guide wheel will not be over-tightened and stuck due to differences in the bending direction of the cable, resulting in changes in the horizontal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For Figure 1 Add a top view after tightening the spring on the basis;

[0019] Figure 3 It is a schematic diagram of the prior art.

[0020] Explanation of reference numerals: 1 connecting seat, 2 limiting plate, 21 rear guide groove, 22 front guide groove, 23 transverse guide groove, 3 rear guide wheel, 31 rear screw rod, 32 rear nut, 4 front guide wheel, 41 front screw rod, 42 front nut, 5 tensioning spring, 51, 52 hooks. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings:

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1 , 2 As shown: a guide device for vertical laying of cables with extra-long cross-sections in public buildings, comprising a connection seat 1, a limit plate 2, a rear guide wheel 3 and a front guide wheel 4;

[0024] Two limit plates 2 are provided on the front side of the connecting seat 1;

[0025] A vertical rear guide groove 21 is provided on the upper edge of the limit plate 2, and a rear screw 31 of the rear guide wheel 3 is placed in the rear guide groove 21 and locked by a rear nut 32;

[0026] A vertical front guide groove 22 is also provided on the upper edge of the limiting plate 2 and the front side of the rear guide groove 21. The front screw 41 of the front guide wheel 4 is placed in the front guide groove 22 and limited by the front nut 42.

[0027] A passage for the cable to pass through is formed between the rear guide wheel 3 and the front guide wheel 4.

[0028] In the utility model, the connection seat has the same structure as the traditional connection seat. In terms of the connection method, a clamp or bolt connection is generally used. Since it is a prior art, it will not be described in detail.

[0029] The limit plate is equivalent to the guide wheel shaft seat in the prior art. The difference is that the limit plate is extended, and a rear guide wheel 3 and a front guide wheel 4 are designed on the limit plate. By setting two guide wheels, a clamping effect is achieved, which can well limit the cable.

[0030] In the early design, in order to facilitate the disengagement, a front guide groove corresponding to the front guide wheel 4 was set, and the disengagement of the utility model was achieved by removing the front guide wheel 4. However, in actual practice, it was found that due to the long length of the limit plate, after the cable was fixed, the distance between the cable and the wall was limited, resulting in the utility model being unable to disengage even if the front guide wheel 4 was removed; later, it was considered to add a rear guide groove, and after the rear guide wheel 3 and the front guide wheel 4 were removed, the connecting seat and the limit plate were moved forward and then horizontally rotated about 45 degrees to disengage.

[0031] Since the rear nut and the front nut are generally only loosened and tightened, there are three parts after disassembly, namely, the rear guide wheel 3 with the rear nut, the front guide wheel 4 with the front nut, and the connecting seat with the limit plate. Both disassembly and assembly are very convenient.

[0032] A transverse guide groove 23 extending backward is provided at the bottom end of the front guide groove 22 , and the front screw rod 41 of the front guide wheel 4 is slidably placed in the transverse guide groove 23 .

[0033] In order to avoid the universality of cables, the distance between the rear guide wheel 3 and the front guide wheel 4 can be adjusted to adapt to cables of different specifications.

[0034] A tension spring 5 is connected between the rear screw rod 31 and the front screw rod 41. The tension spring 5 is connected to a collar 51; the collar is sleeved on the rear screw rod 31, and the collar 51 is located on the inner side of the rear nut 32;

[0035] A limiting ring 43 is sleeved on the front screw rod 41, and the limiting ring 43 is located on the inner side of the front nut 42; a hook 52 is provided at the front end of the tensioning spring 5, and the hook 52 is hung on the limiting ring 43, so that the front guide wheel 4 is always close to the rear guide wheel 3 to clamp the cable.

[0036] Due to the difference in the bending direction of the cable, the cable may exert a greater pressure on the guide wheel during transportation, so the front guide wheel 4 is designed to be adjustable. When the cable is being transported, no matter how much pressure is applied to the rear guide wheel 3 and the front guide wheel 4, it will act on the front guide wheel 4. Since the front guide wheel 4 is a sliding setting, the front guide wheel 4 will move forward. When the force is restored, under the action of the tension spring 5, the front guide wheel 4 moves backward to clamp the cable.

[0037] It should be noted that the tension spring 5 connection ring 51 is sleeved on the rear screw rod 31, and can be disassembled synchronously with the guide wheel 3. The limit ring 43 is sleeved on the front screw rod 41, and is also disassembled synchronously with the front guide wheel 4. It should be noted that in actual design, the limit ring 43 is actually fixedly connected with the front nut 42. The tension spring 5 adopts the hook 52 and the limit ring 43 for disassembly, and the main reason is to facilitate disassembly.

[0038] Before use, it is only necessary to pre-install the utility model, install the connecting seat 1 at the designated position, and finally hook the hook 52 of the tension spring 5 on the limiting ring 43. When not in use, it is only necessary to separate the hook 52 of the tension spring 5 from the limiting ring 43, then rotate the rear nut 32 and the front nut 42 on one side, remove the rear guide wheel 3 and the front guide wheel 4, and finally separate the connecting seat 1 with the limiting plate 2 from the cable.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide device for vertical laying of cables with extra-long cross-section in public buildings, characterized by: It comprises a connecting seat (1), a limiting plate (2), a rear guide wheel (3) and a front guide wheel (4); Two limiting plates (2) are provided on the front side of the connecting seat (1); A vertical rear guide groove (21) is provided on the upper edge of the limit plate (2), and a rear screw rod (31) of the rear guide wheel (3) is placed in the rear guide groove (21) and locked by a rear nut (32); A vertical front guide groove (22) is also provided on the upper edge of the limiting plate (2) and the front side of the rear guide groove (21), and the front screw rod (41) of the front guide wheel (4) is placed in the front guide groove (22) and is limited by the front nut (42); A passage for allowing the cable to pass through is formed between the rear guide wheel (3) and the front guide wheel (4).

2. The guide device for vertical laying of cables with extra-long cross-section in public buildings according to claim 1 is characterized in that: A transverse guide groove (23) extending backwards is provided at the bottom end of the front guide groove (22), and a front screw rod (41) of the front guide wheel (4) is slidably placed in the transverse guide groove (23).

3. The guide device for vertical laying of cables with extra-long cross-section in public buildings according to claim 2 is characterized in that: A tension spring (5) is connected between the rear screw rod (31) and the front screw rod (41).

4. The guide device for vertical laying of cables with extra-long cross-section in public buildings according to claim 3 is characterized in that: The tension spring (5) is connected to a collar (51); the collar is sleeved on the rear screw rod (31), and the collar (51) is located on the inner side of the rear nut (32); A limiting ring is sleeved on the front screw rod (41), and the limiting ring is located on the inner side of the front nut (42); a hook (52) is provided at the front end of the tension spring (5), and the hook (52) is hung on the limiting ring (43), so that the front guide wheel (4) always moves closer to the rear guide wheel (3) to clamp the cable.

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