CN214091929U - Leading support telescopic support leg mounting structure - Google Patents
Leading support telescopic support leg mounting structure Download PDFInfo
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- CN214091929U CN214091929U CN202023015863.6U CN202023015863U CN214091929U CN 214091929 U CN214091929 U CN 214091929U CN 202023015863 U CN202023015863 U CN 202023015863U CN 214091929 U CN214091929 U CN 214091929U
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- plug
- slot
- support leg
- rod body
- telescopic support
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Abstract
The utility model provides a forepoling telescopic support leg mounting structure, including crossbeam and telescopic support leg, the beam end portion is provided with the plug, the telescopic support leg top is provided with the installation head, the overhead correspondence of installation the slot has been seted up to the plug, the slot internal diameter is greater than the plug external diameter sets up, connect through the spacing hub connection of an anticreep between slot and the plug, so that the plug with reserve clearance between the slot. The mounting structure of the telescopic supporting leg of the forepoling has the advantages of scientific design, strong adaptability, firm support and difficult damage.
Description
Technical Field
The utility model relates to a leading support, specific theory has related to a leading support telescopic support leg mounting structure.
Background
The forepoling is used for combining the timbering of adopting the working face tunnelling in-process, and it moves forward through the mode that main and auxiliary frame moved forward in turn, supports the tunnel top surface through the back timber, is fixed connection between the supporting leg of traditional forepoling both sides and the crossbeam, and this kind of mode is not only inconvenient for transport, and when the height is inconsistent about tunnel ground, produces stress easily between supporting leg and the crossbeam, shortens its life, and it is also too firm to support.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a design science, strong adaptability, support firm, not fragile leading support telescopic support leg mounting structure are provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a forepoling telescopic support leg mounting structure, includes crossbeam and telescopic support leg, the crossbeam tip is provided with the plug, telescopic support leg top is provided with the installation head, the overhead correspondence of installation the slot has been seted up to the plug, the slot internal diameter is greater than the plug external diameter sets up, connect through the spacing hub connection of an anticreep between slot and the plug, so that the plug with reserve clearance between the slot.
Based on the above, the anti-falling limiting shaft is a vertical pin shaft, and the vertical pin shaft penetrates through the plug and the slot.
Based on the above, the plug section and the slot section are both rectangular.
Based on the above, the telescopic supporting leg comprises two vertical jacks, and an upper rod body and a lower rod body which are arranged between the two vertical jacks, wherein the upper rod body and the lower rod body are inserted together in a relatively sliding manner, the mounting head is arranged at the top of the upper rod body, the base is arranged at the bottom of the lower rod body, and two ends of each vertical jack are respectively connected to the base and the mounting head.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses utilize the plug with the setting of slot makes the crossbeam with telescopic support leg can nimble dismouting, makes the well and transports in a flexible way, the spacing axle of anticreep only restricts the ascending degree of freedom of a side, prevents to drop, makes the plug with keep the free gap between the slot, like this about in the pit not flat department (general tunnel ground gradient is not higher than 2 degree), the free gap can be right telescopic support leg's slope is compensated, avoids producing stress to improve its adaptability and prolong its life, it has design science, strong adaptability, supports firm, not fragile advantage.
Furthermore, telescopic support leg is by two vertical jack, the upper rod body and the lower rod body constitute jointly, have improved its bearing capacity greatly to its support stability and durability have further been improved.
Drawings
Fig. 1 is the schematic view of the installation structure of the telescopic support leg of the middle front bracket of the utility model.
Fig. 2 is the installation plan view of the telescopic support leg of the middle front bracket of the utility model.
In the figure: 1. a cross beam; 2. a telescopic support leg; 3. a plug; 4. a mounting head; 5. a slot; 6. a vertical pin shaft; 7. a vertical jack; 8. a rod body is arranged; 9. a lower rod body; 10. a base.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1 and 2, a telescopic support leg mounting structure of a fore support comprises a beam 1 and telescopic support legs 2, the end part of the beam 1 is provided with a plug 3, the cross section of the plug 3 is rectangular, the top of the telescopic support leg 2 is provided with a mounting head 4, the mounting head 4 is corresponding to the plug 3, a slot 5 is arranged on the plug 3, the cross section of the slot 5 is also rectangular, the inner diameter of the slot 5 is larger than the outer diameter of the plug 3, the slot 5 is connected with the plug 3 through a vertical pin shaft 6, the vertical pin shaft 6 runs through the plug 3 and the slot 5 to prevent the slot 5 from being separated from the plug 3, the vertical pin shaft 6 limits the transverse freedom degree of the telescopic support leg 2, the movable gap is reserved vertically and vertically, the roadway ground with inclination is compensated conveniently, and the adaptability is improved. In other embodiments, a transverse and oblique anti-separation limit shaft can be adopted, as long as the purpose of separation prevention is achieved, and a necessary movable gap is reserved between the plug and the slot.
The telescopic support leg 2 specifically comprises two vertical jacks 7, an upper rod body 8 and a lower rod body 9 which are positioned between the two vertical jacks 7, the upper rod body 8 and the lower rod body 9 are inserted together in a relatively sliding manner, the mounting head 4 is arranged at the top of the upper rod body 8, a base 10 is arranged at the bottom of the lower rod body 9, and two ends of each vertical jack 7 are respectively connected to the base 10 and the mounting head 4.
During the specific use, telescopic support leg 2 and crossbeam 1 can assemble in the tunnel, and the equipment is connected both with vertical round pin 6 after accomplishing, and when the leading support was through the tunnel ground of slope (general tunnel ground gradient is not higher than 2 °), the clearance can be right telescopic support leg 2's slope is compensated, avoids producing stress to improve its adaptability and prolong its life.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (4)
1. The utility model provides a forepoling telescopic support leg mounting structure, includes crossbeam and telescopic support leg, its characterized in that: the beam end is provided with a plug, the top of the telescopic supporting leg is provided with an installing head, the installing head corresponds to the plug and is provided with a slot, the inner diameter of the slot is larger than the outer diameter of the plug, the slot is connected with the plug through an anti-dropping limiting shaft, so that a movable gap is reserved between the plug and the slot.
2. The telescopic support leg mounting structure of a forepoling as claimed in claim 1, wherein: the anti-falling limiting shaft is a vertical pin shaft, and the vertical pin shaft penetrates through the plug and the slot.
3. The telescopic support leg mounting structure of a fore support according to claim 1 or 2, wherein: the cross section of the plug and the cross section of the slot are both rectangular.
4. The telescopic support leg mounting structure of a fore support according to claim 3, wherein: the telescopic supporting leg comprises two vertical jacks, an upper rod body and a lower rod body, wherein the upper rod body and the lower rod body are positioned between the two vertical jacks, the upper rod body and the lower rod body can be inserted together in a relatively sliding mode, the mounting head is arranged at the top of the upper rod body, the bottom of the lower rod body is provided with a base, and two ends of each vertical jack are respectively connected to the base and the mounting head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015863.6U CN214091929U (en) | 2020-12-15 | 2020-12-15 | Leading support telescopic support leg mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015863.6U CN214091929U (en) | 2020-12-15 | 2020-12-15 | Leading support telescopic support leg mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214091929U true CN214091929U (en) | 2021-08-31 |
Family
ID=77427826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023015863.6U Active CN214091929U (en) | 2020-12-15 | 2020-12-15 | Leading support telescopic support leg mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214091929U (en) |
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2020
- 2020-12-15 CN CN202023015863.6U patent/CN214091929U/en active Active
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