CN212376672U - Jacking support for arch center installation - Google Patents
Jacking support for arch center installation Download PDFInfo
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- CN212376672U CN212376672U CN202020813746.5U CN202020813746U CN212376672U CN 212376672 U CN212376672 U CN 212376672U CN 202020813746 U CN202020813746 U CN 202020813746U CN 212376672 U CN212376672 U CN 212376672U
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- arch
- support
- installing
- rod
- adjusting rod
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Abstract
The utility model relates to a top support of bow member installation usefulness, including bracket, bracing piece, scalable screw regulation pole and support base, wherein, the bracing piece vertical fixation is on supporting the base, and the bracing piece is hollow structure, and scalable screw regulation pole one end is located hollow bracing piece to can reciprocate in the bracing piece, scalable screw regulation pole other end linking bridge. The jacking support for mounting the arch centering can enable the steel arch centering to be rapidly mounted in place on the premise of saving manpower, ensures that surrounding rock on the tunnel face can be closed as soon as possible, greatly reduces the manual supporting safety risk, saves the cost and the construction period, and has a remarkable effect.
Description
Technical Field
The utility model belongs to the technical field of the building engineering construction and specifically relates to a top of using for bow member installation behind tunnel blasting excavation holds in palm support.
Background
After the tunnel is blasted and excavated, a section with poor surrounding rock geological conditions needs to be supported as soon as possible by a steel arch frame, so that the working safety of the tunnel face is ensured.
Because the tunnel section is bigger, the arch frame needs to be assembled by several roof trusses, and the roof trusses are connected by connecting steel plates and high-strength bolts. The steel arch is generally transported to a field operation surface by a loader and then is manually erected and installed due to the limitation of construction operation space in a hole, and because the weight of each steel arch at the top is between 130 and 175kg, the steel arch is heavy, so that a plurality of persons are often required to support the steel arch at the same time, and the steel arch needs to be supported all the time before the steel arch is not connected and installed in place, so that the occupied time is long. And the arch center is generally installed on the premise that surrounding rock at the top of a tunnel face is not supported systematically, so that people are injured by falling dangerous rocks or even more serious dangers are faced, once the problems occur, because the space of a working face on the spot is small, people at the top are too many, no effective protective facilities exist, people cannot avoid the dangerous rocks in time, serious consequences can be generated, the potential safety hazard is large, and therefore aiming at the problems, the supporting and installation mode improvement needs to be carried out by adopting targeted measures, so that the safety risks are reduced to the minimum, and the safety of lives and properties of people is ensured.
Because the tunnel working space is limited, the top arch support is difficult to operate, the danger coefficient is large by only using simple manual support, and the efficiency cannot be effectively guaranteed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a top of bow member installation usefulness holds in palm support, including bracket, bracing piece, scalable screw regulation pole and support base, wherein, the bracing piece vertical fixation is on supporting the base, and the bracing piece is hollow structure, and scalable screw regulation pole one end is located hollow bracing piece to can reciprocate in the bracing piece, scalable screw regulation pole other end linking bridge.
As a further improvement of the utility model: still include rotatory handle, rotatory handle cup joints on scalable screw adjusting pole.
As a further improvement of the utility model: the joint of the rotary handle and the telescopic spiral adjusting rod is provided with a supporting part.
As a further improvement of the utility model: the rotating handle and the supporting part are provided with through holes, and inner walls of the through holes are provided with internal threads.
As a further improvement of the utility model: the outer wall of the telescopic spiral adjusting rod is provided with an external thread meshed with the internal thread of the through hole.
As a further improvement of the utility model: also comprises a spiral fastening cap; the spiral fastening cap is sleeved on the telescopic spiral adjusting rod and is positioned above the rotating handle.
As a further improvement of the utility model: the bottom of the supporting rod is also provided with a plurality of evenly distributed supporting rods connected with the base.
As a further improvement of the utility model: the bracket is of a U-shaped structure.
As a further improvement of the utility model: the top of the hollow support rod is provided with a ring piece, and the ring piece is provided with two or four symmetrical grooves.
As a further improvement of the utility model: the bottom of the telescopic spiral adjusting rod is provided with a gasket with the diameter larger than that of the telescopic spiral adjusting rod but smaller than that of the hollow cavity of the supporting rod.
Advantageous effects
The utility model has the advantages that: the jacking support for mounting the arch centering can enable the steel arch centering to be rapidly mounted in place on the premise of saving manpower, ensures that surrounding rock on the tunnel face can be closed as soon as possible, greatly reduces the manual supporting safety risk, saves the cost and the construction period, and has a remarkable effect. The top arch can be rapidly supported in place by using the jacking support for arch installation, the arch can be conveniently fixed by controlling the height and the direction only by rotating the handle by workers, so that the arch is not required to be supported by a plurality of people all the time, the working space is expanded, the construction resources are saved, and the defects of large danger coefficient and low efficiency of manual support are greatly improved.
Drawings
Fig. 1 is a schematic perspective view of a jacking bracket for arch mounting according to the present invention;
FIG. 2 is an enlarged perspective schematic view of the connection of the twist grip to the telescoping screw adjustment lever and the support rod;
FIG. 3 is a top view of the support pole of the present invention;
FIG. 4 is a schematic view of a rotating handle configuration;
fig. 5 is a perspective schematic view of a twist grip.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Referring to fig. 1-5, the top support bracket 10 for arch centering installation provided by the present invention comprises a bracket 5, a support rod 2, a retractable screw adjusting rod 3 and a support base 1, wherein the support rod 2 is vertically fixed on the support base 1, and a plurality of evenly distributed support rods 9 connected with the support base 1 are arranged at the bottom of the support rod 2 for reinforcing the support rod 2. The support rod 2 is a hollow structure, and one end (tail end) of the telescopic spiral adjusting rod 3 is positioned in the hollow support rod 2 and can move up and down in the support rod 2. The bracket is connected at the other end (top end) of the telescopic spiral adjusting rod.
The retractable screw adjustment lever 3 is fitted with a rotary knob 4, and a support portion 6 is provided at the bottom of the rotary knob 4, and the support portion 6 is also fitted with the retractable screw adjustment lever 3. The telescopic spiral adjusting rod 3 is driven to move in the hollow cavity of the supporting rod by rotating the rotating handle 4, so that the distance between the bracket 5 and the supporting base 1 is adjusted, and the height of the whole jacking bracket 10 is also adjusted. Specifically, through holes 41 are formed in the rotary handle 4 and the supporting portion 6, internal threads 42 are formed in the inner walls of the through holes 41, external threads 31 meshed with the through holes and the internal threads are formed in the outer wall of the telescopic screw adjusting rod 3, and the telescopic screw adjusting rod 3 penetrates through the through holes 41 in the rotary handle 4 and the supporting portion 6 and is meshed with the through holes and the internal threads. When the telescopic spiral adjusting rod 3 needs to be adjusted, the rotating handle 4 is rotated forcibly, so that the telescopic spiral adjusting rod 3 moves up and down in the hollow supporting rod 2, the height and the direction of the bracket 5 at the top of the telescopic spiral adjusting rod 3 are adjusted, and the top arch centering and the side arch centering in the arch hole are flexibly spliced. Thereby make top bow member and side bow member can splice fast, greatly reduced the construction risk.
In some embodiments, a screw-fastening cap 7 is further included; the screw fastening cap 7 is sleeved on the telescopic screw adjusting rod 3 and is positioned above the rotating handle 4. After the height and the direction of the bracket 5 are adjusted, the spiral fastening cap 7 sleeved on the telescopic spiral adjusting rod 3 rotates towards the direction of the rotating handle 4, and compresses and fixes the rotating handle 4, so that the telescopic spiral adjusting rod 3 is fixed.
In some embodiments, the bracket is a "U" -shaped structure. The U-shaped structure is matched with arch frame in shape, and the arch frame is in the U-shaped recess.
The utility model discloses in, be equipped with ring piece 21 at 2 tops of hollow bracing piece, scalable screw adjusting lever 3 bottoms are equipped with the diameter and are greater than scalable screw adjusting lever 3 but are less than the gasket 8 of 2 cavity diameters of bracing piece. The bracing piece cavity holds scalable screw regulation pole 3, its cavity diameter is greater than scalable screw regulation pole 3 diameters, in order to prevent that scalable screw regulation pole 3 from taking off the processing from the internal slip of cavity of follow after rotatory, be fixed with ring piece 21 at 2 tops of bracing piece, this ring piece 21 directly reduces the opening of the cavity of bracing piece 2 to the gasket 8 diameter that is less than scalable screw regulation pole 3 bottom, like this when scalable screw regulation pole 3 is rotated to the opening part of its terminal cavity that reachs bracing piece 2, ring piece 21 blocks gasket 8, thereby make scalable screw regulation pole 3 can not follow the cavity slippage of bracing piece 2. In addition, in order to ensure that the retractable spiral adjusting rod 3 can be inserted into the supporting rod initially, two or four grooves 22 are symmetrically arranged on the ring piece 21, the retractable spiral adjusting rod 3 is inclined to enable the gasket 8 to enter the grooves 22, and then the gasket 8 and the retractable spiral adjusting rod 3 enter the hollow cavity of the supporting rod 2.
In one embodiment, all components of the jacking leg 10 are made of steel, and the total weight is 9.5 Kg. The adjustable length of the support rod 2 and the telescopic spiral adjusting rod 3 is 1.7-2.2 m, and the telescopic spiral adjusting rod can freely extend and retract by 50 cm. The top support bracket is convenient to move, flexible to stretch and flexible, and very obvious in supporting effect.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a top of bow member installation usefulness holds in palm support which characterized in that: the support device comprises a bracket, a support rod, a telescopic spiral adjusting rod and a support base, wherein the support rod is vertically fixed on the support base, the support rod is of a hollow structure, one end of the telescopic spiral adjusting rod is positioned in the hollow support rod and can move up and down in the support rod, and the other end of the telescopic spiral adjusting rod is connected with the bracket.
2. A jacking leg for installing an arch as claimed in claim 1, wherein: still include rotatory handle, rotatory handle cup joints on scalable screw adjusting pole.
3. A jacking leg for installing an arch as claimed in claim 2, wherein: the joint of the rotary handle and the telescopic spiral adjusting rod is provided with a supporting part.
4. A jacking leg for installing an arch as claimed in claim 3, wherein: the rotating handle and the supporting part are provided with through holes, and inner walls of the through holes are provided with internal threads.
5. A jacking leg for installing an arch as claimed in claim 4, wherein: the outer wall of the telescopic spiral adjusting rod is provided with an external thread meshed with the internal thread of the through hole.
6. A jacking leg for installing an arch as claimed in claim 2, wherein: also comprises a spiral fastening cap; the spiral fastening cap is sleeved on the telescopic spiral adjusting rod and is positioned above the rotating handle.
7. A jacking leg for installing an arch as claimed in claim 1, wherein: the bottom of the supporting rod is also provided with a plurality of evenly distributed supporting rods connected with the base.
8. A jacking leg for installing an arch as claimed in claim 1, wherein: the bracket is of a U-shaped structure.
9. A jacking leg for installing an arch as claimed in claim 1, wherein: the top of the hollow support rod is provided with a ring piece, and the ring piece is provided with two or four symmetrical grooves.
10. A jacking leg for installing an arch as claimed in claim 9, wherein: the bottom of the telescopic spiral adjusting rod is provided with a gasket with the diameter larger than that of the telescopic spiral adjusting rod but smaller than that of the hollow cavity of the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813746.5U CN212376672U (en) | 2020-05-15 | 2020-05-15 | Jacking support for arch center installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813746.5U CN212376672U (en) | 2020-05-15 | 2020-05-15 | Jacking support for arch center installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212376672U true CN212376672U (en) | 2021-01-19 |
Family
ID=74177835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020813746.5U Active CN212376672U (en) | 2020-05-15 | 2020-05-15 | Jacking support for arch center installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212376672U (en) |
-
2020
- 2020-05-15 CN CN202020813746.5U patent/CN212376672U/en active Active
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