CN204277336U - The vertical bracing frame of herringbone bar group - Google Patents

Abstract

The utility model provides a kind of herringbone bar group vertical bracing frame, the vertical bracing frame of described herringbone bar group comprises anchor ear, T-shaped screw mandrel, T-shaped screw sleeve, ratchet and handle assembly, the outside of the described anchor ear of two covers radially outwards be connected with the end of described T-shaped screw mandrel respectively, two described T-shaped screw mandrels screw in described T-shaped screw sleeve from two ends respectively, the middle part of described T-shaped screw sleeve is provided with described ratchet, described ratchet is provided with the described handle assembly stirring described ratchet.The vertical bracing frame of herringbone bar group of the present utility model utilizes screw mandrel shrink in opposite directions and stretch out, and solves the selective of differing heights herringbone bar fixed position, solves in the vertical process of group simultaneously and easily can adjust herringbone bar angle, guarantee installation accuracy.

Description

Support frame for herringbone pole assembly

【Technical field】

The utility model relates to the field of transmission line erection, in particular to a support frame for erecting a herringbone pole.

【Background technique】

In recent years, with the increase of new construction and renovation projects of the power grid, the number of herringbone poles set up by the substation building installation division is increasing.

In the past, the method of "single pole and single erection" was used to form a herringbone pole: first, a crane was used to lift a pole and place it in a pre-dug pit, and fixed it with spinning ropes; after loosening, lift another pole. Put the electric pole in another pit according to the specified angle; then put the previous electric pole and this pole together according to the specified angle, and the angle is realized by pulling and releasing the spinning rope. A welder climbed up the pole to initially weld the two poles together, and the welding was completed after the ground construction workers filled in the soil. This method consumes a lot of manpower, consumes a long working hours, and the safety factor is not high.

Later, it was improved to weld the channel steel and the hoop to form the integral assembly of the fixed bracket. When the equal diameter rods of different heights are assembled, the length of the channel steel needs to be changed, and it is difficult to adjust the angle of the herringbone rod.

【Content of utility model】

In view of this, in order to overcome the deficiencies of the prior art, the utility model provides a support frame for the assembly of the gable pole, which can ensure the safety and reliability of the gable pole assembly, and improve the installation accuracy and efficiency.

A support frame for erecting a herringbone rod, the support frame for erecting a herringbone rod includes a hoop, a T-shaped screw rod, a T-shaped nut sleeve, a ratchet and a handle assembly, two sets of hoops The outer side is connected to the ends of the T-shaped screw rods outward along its radial direction, and the two T-shaped screw rods are respectively screwed into the T-shaped nut sleeves from both ends, and the T-shaped screw nuts The middle part of the sleeve is provided with the ratchet, and the handle assembly for dialing the ratchet is installed on the ratchet.

On the basis of the above technical solution, the two screw rods are respectively left and right T-shaped threaded screw rods, the screw threads of the two screw rods have different directions of rotation, and the two ends of the T-shaped nut sleeve are equipped with different rotating screws. T-shaped threaded nuts, and the two screw rods are respectively screwed into the two T-shaped threaded nuts.

On the basis of the above technical solution, the hoop is a hoop of R150mm, the thickness of the hoop is 5mm, and the width is 80mm.

On the basis of the above technical solution, the T-shaped screw rod, the T-shaped nut sleeve, the ratchet and the handle assembly are formed by cutting off the hooks at both ends by a 30kN double-hook wire tensioner.

The support frame for the assembly of the herringbone rods of the utility model uses the screw rods to shrink and extend in opposite directions, which solves the selectivity of the fixed positions of the herringbone rods at different heights, and at the same time solves the problem that the angle of the herringbone rods can be easily adjusted during the assembly process to ensure installation precision.

【Description of drawings】

Fig. 1 is a front view of a support frame for assembling a herringbone pole according to a preferred embodiment of the present invention.

【Detailed ways】

In order to better understand the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific examples.

In order to solve the problem of inconvenient operation for the staff and improve work efficiency at the same time, the support frame for the erection of the herringbone pole of the utility model starts with the whole assembly of the herringbone pole. Since the substations all use ￠300mm equal-diameter poles, the height of the herringbone pole is average Above 7 meters, the weight of the pole is above 1 ton. Therefore, the first consideration is to meet the required mechanical strength requirements. The special support frame must be guaranteed not to be twisted and deformed during the overall assembly to ensure the safety and reliability of the overall assembly of the herringbone pole. Then consider The purpose of improving installation accuracy and installation efficiency is achieved.

Please refer to FIG. 1 , the supporting frame for erecting a herringbone pole provided by the preferred embodiment of the present invention includes a hoop 10 , a T-shaped screw rod 20 , a T-shaped nut sleeve 30 , a ratchet 40 and a handle assembly 50 . The outer sides of the two sets of hoops 10 are respectively connected to the ends of the T-shaped screw rod 20 radially outward. The two T-shaped screw rods 20 are screwed into the T-shaped nut sleeve 30 from both ends respectively, and the middle part of the T-shaped nut sleeve 30 is provided with a ratchet 40 on which a handle assembly 50 is installed.

The hoop 10 is the hoop of 2 sets of R150mm. The two screw rods 20 are respectively left and right T-shaped screw rods, and the two ends of the sleeve 30 are equipped with T-shaped screw nuts with different rotations. Inside.

When the handle assembly 50 is turned to move the ratchet 40, the sleeve 30 is driven to rotate in the forward or reverse direction, and the two screw rods 20 will shrink or extend toward each other. The purpose of the chevron angle.

The support frame for the above-mentioned herringbone pole assembly can be converted from 2 sets of R150mm hoops and 1 set of 30kN double hook tensioner. Weld the M16 bolt sleeve outside the center of the hoop, fix the M16 bolts, cut off the hooks at both ends of the double hook tensioner, and weld the two ends to the M16 bolts to assemble. The hoop and the double-hook wire tensioner are easy to process and purchase, and belong to general equipment materials, and the cost is not high, so it is economically feasible. The wire tensioner is easy and convenient to operate.

Use R150mm hoop (thickness 5mm, width 80mm) and 30kN tensile strength double hook tensioner, which can meet the strength requirements. The connecting part of the hoop and the wire tensioner meets the strength requirements by strengthening and widening the welding surface. One is to use the screw rods to shrink and extend to each other, which solves the selectivity of the fixed position of the herringbone rods at different heights; the second is to use the screw rods to shrink and extend to each other to solve the problem that the angle of the herringbone rods can be easily adjusted during the assembly process to ensure installation accuracy .

The process of adopting the special support frame for the herringbone pole assembly of the utility model to carry out the herringbone pole assembly is as follows:

(1) Place two ￠300 equal-diameter rods at an angle, fix the special support frame for the herringbone rod assembly at the appropriate position of the equal-diameter rod to form a herringbone, and fasten the hoop bolts of the special support frame for the herringbone rod assembly.

(2) Fix the top node of the herringbone pole, and check that the center distance of the bottom of the herringbone pole is consistent with the center distance of the foundation. If there is a deviation, use the handle of the special support frame for the assembly of the herringbone bar to adjust the distance between the bottom ends of the herringbone bar to meet the requirements of the center distance of the foundation.

(3) Assembling the herringbone rod, the handle of the special support frame can be rotatable to assemble the herringbone rod so that the distance between the bottom of the herringbone rod meets the center distance of the foundation and is exactly the same. For the second pouring, weld the top node of the herringbone pole. After the welding is completed, remove the herringbone rod assembly and set up a special support frame.

To sum up, the special support frame for the assembly of herringbone poles of the utility model satisfies the characteristics of safety, economy, reliability, and convenient use and maintenance, and the technical solution is feasible and has promotion value.

The above-mentioned implementation examples only express some implementations of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (4)

1. the vertical bracing frame of herringbone bar group, it is characterized in that: the vertical bracing frame of described herringbone bar group comprises anchor ear, T-shaped screw mandrel, T-shaped screw sleeve, ratchet and handle assembly, the outside of the described anchor ear of two covers radially outwards be connected with the end of described T-shaped screw mandrel respectively, two described T-shaped screw mandrels screw in described T-shaped screw sleeve from two ends respectively, the middle part of described T-shaped screw sleeve is provided with described ratchet, described ratchet is provided with the described handle assembly stirring described ratchet.

2. the vertical bracing frame of herringbone bar group according to claim 1, it is characterized in that: two described screw mandrels are respectively the T-shaped threaded screw rod in left and right, the thread rotary orientation of two described screw mandrels is different, the two ends of described T-shaped screw sleeve are furnished with the different T-shaped screw thread screw of rotation, and two described screw mandrels are combined in two described T-shaped screw thread screws respectively.

3. the vertical bracing frame of herringbone bar group according to claim 2, is characterized in that: described anchor ear is the anchor ear of R150mm, and the thickness of described anchor ear is 5mm, width is 80mm.

4. the vertical bracing frame of herringbone bar group according to claim 2, is characterized in that: formed after described T-shaped screw mandrel, described T-shaped screw sleeve, described ratchet and described handle assembly amputate two end hooks by a 30kN double-hook wire grip.