CN220118128U - Adjustable small-section tunnel drilling and blasting operation platform - Google Patents

Abstract

The utility model relates to an adjustable small-section tunnel drilling and blasting operation platform which comprises two supporting mechanisms, a connecting piece for connecting the supporting mechanisms and a bearing plate paved on the connecting piece, wherein the supporting mechanisms comprise two vertical supporting components and a transverse supporting component connected with the two vertical supporting components, each transverse supporting component comprises two frame bodies connected with the vertical supporting components and an adjusting strip connected with the two frame bodies, and the two frame bodies can move oppositely relative to the adjusting strip. The utility model has the effect of being convenient for adjusting the total length of the two frame bodies and the adjusting strip after being connected so as to adapt to tunnels with different widths.

Description

Adjustable small-section tunnel drilling and blasting operation platform

Technical Field

The utility model relates to the field of tunnel excavation auxiliary devices, in particular to an adjustable small-section tunnel drilling and blasting operation platform.

Background

In the tunnel construction of civil engineering construction projects, the construction of the middle and upper reinforcing steel bars in the tunnel lining, such as lofting, positioning, binding and welding, reinforcing steel bar acceptance inspection and the like, is completed on a scaffold. The space of the small-section tunnel is relatively small, but the upper part excavation and support still need an operation platform, drilling, blasting and support personnel can normally construct only on the platform, the traditional method generally adopts a temporary steel pipe scaffold to be erected on site, the construction platform is formed by the temporary steel pipe scaffold, the slag soil which is drilled and blasted in the drilling, the fixed scaffold can block the transportation of the slag soil, the scaffold needs to be dismantled before blasting each time, the next cycle drilling is carried out, the erection and dismantling time is relatively long, on one hand, the redundant time is increased, on the other hand, the temporary steel pipe scaffold for reinforcing steel bar construction is large in erection and dismantling workload, labor and time are wasted, and great inconvenience is brought to construction.

At present, a small-section tunnel drilling and blasting operation platform is formed by using a support frame and a reinforcing steel bar net sheet arranged on the support frame, wherein the support frame comprises seven steel pipes, a first steel pipe, a second steel pipe, a third steel pipe, a fourth steel pipe and a fifth steel pipe which are all obliquely supported in the tunnel, a sixth steel pipe is transversely arranged at the upper ends of the first steel pipe and the second steel pipe, a seventh steel pipe is transversely arranged at the upper ends of the third steel pipe and the fourth steel pipe, and one end of the fifth steel pipe is fixed at the crossing position of the first steel pipe and the sixth steel pipe; the reinforcing bar net piece sets up in sixth steel pipe and seventh steel pipe upper portion, and this small-section tunnel bores and explodes operation platform has shortened the time of setting up and demolishing at every turn, but because this small-section tunnel bores and explodes operation platform can't adjust the width at tunnel cross section direction when using, leads to this operation platform can't be nimble be applicable to the small-section tunnel of equidimension, has influenced the commonality that small-section tunnel bores and explodes operation platform.

Disclosure of Invention

In order to flexibly adjust the width of the small-section tunnel drilling and blasting operation platform in the cross section direction of a tunnel, the utility model provides an adjustable small-section tunnel drilling and blasting operation platform.

The utility model provides an adjustable small-section tunnel drilling and blasting operation platform which adopts the following technical scheme:

the utility model provides an adjustable small section tunnel bores and explodes operation platform, includes two supporting mechanism, is used for connecting supporting mechanism's connecting piece with lay the bearing plate on the connecting piece, supporting mechanism includes two vertical supporting component and connects two vertical supporting component's horizontal supporting component, horizontal supporting component include two with the frame body that vertical supporting component is connected and connect two the regulation strip of frame body, two the frame body can be relative the regulation strip takes place to move in opposite directions.

Through adopting above-mentioned technical scheme, through adjusting two frame body relative adjustment strip and remove in opposite directions, be convenient for adjust the total length after two frame body and the connection of adjustment strip to adapt to the tunnel of different width.

Preferably, an internal thread opening is formed in one end of the frame body, external threads matched with the internal thread openings are respectively arranged at two ends of the adjusting strip, and the directions of the internal threads of the two frame bodies are opposite.

Through adopting above-mentioned technical scheme, need not take off horizontal supporting component, through rotating the regulation strip can drive two frame bodies simultaneously and be close to each other or keep away from each other, be convenient for adjust two frame bodies at any time and adjust total length after the strip is connected to adapt to the tunnel of different width.

Preferably, the adjusting bar is provided with a nut, and the nut is fixedly connected with the adjusting bar and used for being externally connected with a wrench to rotate the adjusting bar.

Through adopting above-mentioned technical scheme, through the external spanner of cooperation, the spanner card goes into the nut, has increased the arm of force length of the power of acting on the nut, is convenient for rotate the nut, drives the regulation strip and rotates to make two frame bodies be close to each other or keep away from each other, adjust the total length after two frame bodies and regulation strip are connected.

Preferably, the adjusting bar is provided with a plug hole, and the plug hole penetrates through the adjusting bar and is used for externally connecting the plug rod to rotate the adjusting bar.

Through adopting above-mentioned technical scheme, through the external inserted bar of cooperation, the inserted bar inserts the spliced eye, has increased the arm of force length of the power of effect on the regulating strip, is convenient for rotate the regulating strip to make two frame bodies be close to each other or keep away from each other, adjust the total length after two frame bodies and regulating strip are connected.

Preferably, the vertical support assembly comprises an outer support tube and an inner support body, the inner support body is in sliding connection with the outer support tube, and the inner support body is respectively connected with the connecting piece and the frame body.

Through adopting above-mentioned technical scheme, interior supporter and outer stay tube sliding connection, the length of exposing outer stay tube outside part through the slip regulation interior supporter, adjustment work platform's height to adapt to the tunnel of different co-altitude.

Preferably, the top end of the inner support body leans against the side wall of the tunnel, and the included angle between the inner support body and the side wall of the tunnel is 5-40 degrees.

Through adopting above-mentioned technical scheme, the top of interior supporter supports tightly on the tunnel lateral wall, receives the holding power from the tunnel lateral wall, and the bottom of outer stay tube supports tightly subaerial, receives the holding power from ground, promotes the supporting stability of interior supporter and outer stay tube, and the contained angle is too little in the interior supporter of contained angle received the holding power from the tunnel lateral wall, and the biggest stiction on tunnel lateral wall and interior supporter top is too little, and the slip appears in interior supporter top easily.

Preferably, the outer support tube is provided with a first connecting hole, the inner support body is provided with a second connecting hole, the outer support tube is provided with a fixing rod matched with the first connecting hole and the second connecting hole, the number of the second connecting holes is multiple, and the second connecting holes are arranged at intervals.

Through adopting above-mentioned technical scheme, with first connecting hole and second connecting hole alignment, the dead lever inserts in first connecting hole and the second connecting hole can be fixed with interior supporter and outer stay tube, reduces work platform's rocking, aligns through adjusting first connecting hole and different second connecting hole, comes to adjust the length that interior supporter exposes outer stay tube outside part to adapt to the tunnel of different co-altitude.

Preferably, the frame body is provided with an inclined sleeve, the inner support body passes through the inclined sleeve, and the inclined sleeve is fixedly connected with the frame body.

Through adopting above-mentioned technical scheme, on the support body including the sleeve cover, through the distance between two frame bodies of adjustment, make the sleeve support tightly including on the support body to make interior support body top and tunnel lateral wall support tightly, outer stay tube bottom supports tightly with ground, the support stability of support body and outer stay tube in the reinforcing.

Preferably, the inclined sleeve is provided with a bolt hole penetrating through the side wall, the inclined sleeve is provided with a fastening bolt matched with the bolt hole, and the fastening bolt passes through the bolt hole to be abutted against the outer wall of the inner support body.

Through adopting above-mentioned technical scheme, fastening bolt passes the bolt hole and supports tightly on interior supporter outer wall, makes oblique sleeve and interior supporter be connected more firm, reduces oblique sleeve along the gliding risk of interior supporter, strengthens the connection stability of frame body and interior supporter.

Preferably, the lower surface of the bearing plate is provided with at least two limiting blocks, and the limiting blocks are arranged in a staggered manner along the cross section direction of the tunnel to form a storage cavity for placing the connecting piece.

Through adopting above-mentioned technical scheme, the restriction bearing plate is in tunnel cross section horizontal direction's removal, and the bearing plate is difficult for appearing rocking, improves work platform's security.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a schematic front view of the overall structure of an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a lateral support member according to an embodiment of the present utility model.

Fig. 4 is a schematic semi-sectional view of a vertical support assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic bottom view of the overall structure of an embodiment of the present utility model.

Reference numerals illustrate:

1. a support mechanism; 11. a vertical support assembly; 111. an outer support tube; 112. an inner support; 113. a first connection hole; 114. a second connection hole; 115. a fixed rod; 116. a mounting member; 12. a lateral support assembly; 121. a frame body; 122. an adjustment bar; 123. an inclined sleeve; 124. a fastening bolt; 125. a nut; 126. a plug hole; 2. a connecting piece; 3. a pressure bearing plate; 31. and a limiting block.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses an adjustable small-section tunnel drilling and blasting operation platform.

Referring to fig. 1 and 2, an adjustable small-section tunnel drilling and blasting operation platform comprises a supporting mechanism 1, a connecting piece 2 and a bearing plate 3, wherein the supporting mechanism 1 is arranged on the ground and used for supporting the operation platform, the number of the supporting mechanisms 1 is two, the connecting piece 2 is connected with the supporting mechanism 1 and used for connecting the two supporting mechanisms 1, and the bearing plate 3 is paved on the connecting piece 2 and used for bearing the pressure during construction operation.

Referring to fig. 1 and 2, the support mechanism 1 includes two vertical support assemblies 11 and a transverse support assembly 12, wherein the vertical support assemblies 11 are used for bearing the pressure of the working platform and supporting the working platform; the transverse supporting component 12 is used for connecting the two vertical supporting components 11, fixing the position of the vertical supporting components 11, and facilitating supporting the working platform.

Referring to fig. 3, the transverse supporting component 12 includes an adjusting bar 122, an inclined sleeve 123 and two frame bodies 121, the frame bodies 121 are in a round bar shape and are used for fixing the position of the vertical supporting component 11, the two frame bodies 121 are respectively connected with the adjusting bar 122 in a threaded manner, an internal thread opening is formed at the connecting end of the frame bodies 121, the directions of the internal threads of the two frame bodies 121 are opposite, the adjusting bar 122 is in a round bar shape, external threads matched with the internal thread opening are respectively formed at the two ends of the adjusting bar 122, the adjusting bar 122 is used for connecting the two frame bodies 121, the two frame bodies 121 are conveniently adjusted to move relatively by rotating the adjusting bar 122, and accordingly the total length of the two frame bodies 121 and the adjusting bar 122 after being connected is adjusted to adapt to tunnels with different widths; the inclined sleeve 123 is disposed at one end of the frame body 121 remote from the adjustment bar 122, and is welded to the frame body 121 for connecting the frame body 121 and the vertical support assembly 11.

Referring to fig. 3, in order to facilitate rotating the adjusting bar 122 to adjust the total length of the two frame bodies 121 and the adjusting bar 122 after being connected, a nut 125 is disposed on the adjusting bar 122, the nut 125 is a hexagonal prism, the nut 125 is integrally connected with the adjusting bar 122, the nut 125 is clamped by matching with an external wrench, the wrench is convenient for rotating the nut 125 by rotating the wrench, and the adjusting bar 122 is driven to rotate, thereby achieving the purpose of adjusting the total length of the two frame bodies 121 and the adjusting bar 122 after being connected.

Referring to fig. 3, in order to facilitate rotating the adjusting bar 122 to adjust the total length of the two frame bodies 121 and the adjusting bar 122 after being connected, the adjusting bar 122 is provided with two inserting holes 126, the inserting holes 126 penetrate through the adjusting bar 122, the external inserting bars are matched to insert the inserting holes 126, and the rotating inserting bars are convenient to drive the adjusting bar 122 to rotate, so that the purpose of adjusting the total length of the two frame bodies 121 and the adjusting bar 122 after being connected is achieved.

Referring to fig. 4, the vertical support assembly 11 includes an outer support tube 111 and an inner support body 112, the outer support tube 111 is disposed on the ground, the outer support tube 111 is in a circular tube shape, the interior is hollow, and is used for propping against the ground to obtain a supporting force from the ground, the inner support body 112 leans against the side wall of the tunnel, is in a circular rod shape, is inserted into the outer support tube 111 and is slidably connected with the outer support tube 111, the top end of the inner support body 112 leans against the side wall of the tunnel, the included angle between the inner support body 112 and the side wall of the tunnel is 6 degrees, the inner support body 112 is respectively connected with the connecting piece 2 and the frame body 121, the inner support body 112 is provided with a mounting piece 116, the mounting piece 116 is in an L shape, and is disposed on one surface of the inner support body 112 far away from the side wall of the tunnel, and is used for placing the connecting piece 2, fixing the position of the connecting piece 2, reducing the movement of the connecting piece 2 in the cross section direction of the tunnel, and improving the stability of the working platform; the inclined sleeve 123 can be fitted over the inner support 112, the inner support 112 being adapted to bear against the tunnel side wall to obtain a supporting force from the tunnel side wall.

Referring to fig. 3, in order to enhance the connection stability between the frame body 121 and the inner support body 112, bolt holes penetrating through the side walls of the inclined sleeve 123 are formed in the inclined sleeve 123, fastening bolts 124 matched with the bolt holes are arranged on the inclined sleeve 123, the fastening bolts 124 are abutted against the outer wall of the inner support body 112 after penetrating through the bolt holes, the relative positions of the inclined sleeve 123 and the inner support body 112 are fixed, and the connection stability between the frame body 121 and the inner support body 112 is enhanced.

Referring to fig. 4, in order to facilitate the adjustment of the height of the operation platform, a first connection hole 113 is formed in the outer support tube 111, a second connection hole 114 is formed in the inner support body 112, the diameters of the first connection hole 113 and the second connection hole 114 are the same, a fixing rod 115 matched with the first connection hole 113 and the second connection hole 114 is arranged on the outer support tube 111, the fixing rod 115 can be inserted into the first connection hole 113 and the second connection hole 114, the number of the second connection holes 114 is multiple, the number of the second connection holes 114 is six, the six second connection holes 114 are uniformly arranged at intervals, the fixing rods 115 are bolts, in order to further improve the connection stability, the fixing rods 115 can also be bolts, and the different second connection holes 114 are aligned with the first connection holes 113 through sliding the inner support body 112, so that the relative positions of the outer support tube 111 and the inner support body 112 can be conveniently adjusted, and the height of the operation platform can be adjusted, so that the heights of different tunnels can be adapted.

Referring to fig. 1, the connecting members 2 are round bars, and the two connecting members 2 are correspondingly connected with the two inner supporting bodies 112 along the tunnel direction respectively, so that the four inner supporting bodies 112 are connected into a whole, the situation that the inner supporting bodies 112 are inclined is reduced, and the stability of the working platform is improved.

Referring to fig. 1, the bearing plates 3 are cuboid plates, are paved on the connecting piece 2, the number of the bearing plates 3 is three in the embodiment of the utility model, the bearing plates 3 are paved side by side, the material of the bearing plates 3 is steel plate, and the bearing plates 3 are used for bearing the pressure during construction operation, so that the stability of the operation platform is improved; the bearing plate 3 has various lengths for working in cooperation with tunnels of different widths.

Referring to fig. 5, in order to reduce movement of the bearing plate 3, a limiting block 31 is disposed on the bottom surface of the bearing plate 3, the limiting block 31 is integrally connected with the bearing plate 3, the number of limiting blocks 31 is at least two, in the embodiment of the present utility model, the number of limiting blocks 31 is three, and three limiting blocks 31 are staggered along the cross section direction of the tunnel to form a storage cavity for placing the connecting piece 2, so as to limit movement of the bearing plate 3 in the horizontal direction of the cross section of the tunnel, and shaking of the bearing plate 3 is not easy to occur, thereby improving safety of the working platform.

The implementation principle of the adjustable small-section tunnel drilling and blasting operation platform provided by the embodiment of the utility model is as follows: the adjusting bar 122 is rotated to drive the two frame bodies 121 to move relatively, the distance between the two frame bodies 121 is adjusted, the operation platform can adapt to tunnels with different widths, the inner supporting body 112 slides along the outer supporting tube 111 through the insertion connection of the adjusting fixing rod 115 and the second connecting holes 114, and the length of the inner supporting body 112 exposed out of the outer supporting tube 111 is adjusted, so that the operation platform can adapt to tunnels with different heights.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides an adjustable small-section tunnel bores and explodes operation platform, includes two supporting mechanism (1), is used for connecting piece (2) of supporting mechanism (1) and lay bearing plate (3) on connecting piece (2), supporting mechanism (1) include two vertical supporting component (11) and connect two horizontal supporting component (12) of vertical supporting component (11), its characterized in that: the transverse supporting assembly (12) comprises two frame bodies (121) connected with the vertical supporting assembly (11) and adjusting strips (122) connected with the two frame bodies (121), and the two frame bodies (121) can move oppositely relative to the adjusting strips (122).

2. The adjustable small-section tunnel drilling and blasting operation platform according to claim 1, wherein: an internal thread opening is formed in one end of the frame body (121), external threads matched with the internal thread openings are respectively arranged at two ends of the adjusting strip (122), and the directions of the internal threads of the two frame bodies (121) are opposite.

3. The adjustable small-section tunnel drilling and blasting operation platform according to claim 2, wherein: the adjusting strip (122) is provided with a nut (125), and the nut (125) is fixedly connected with the adjusting strip (122) and used for rotating the adjusting strip (122) by an external wrench.

4. The adjustable small-section tunnel drilling and blasting operation platform according to claim 2, wherein: the adjusting strip (122) is provided with a plug hole (126), and the plug hole (126) penetrates through the adjusting strip (122) and is used for externally connecting a plug rod to rotate the adjusting strip (122).

5. The adjustable small-section tunnel drilling and blasting operation platform according to claim 1, wherein: the vertical support assembly (11) comprises an outer support tube (111) and an inner support body (112), wherein the inner support body (112) is in sliding connection with the outer support tube (111), and the inner support body (112) is respectively connected with the connecting piece (2) and the frame body (121).

6. The adjustable small-section tunnel drilling and blasting operation platform according to claim 5, wherein: the top end of the inner supporting body (112) leans against the side wall of the tunnel, and the included angle between the inner supporting body (112) and the side wall of the tunnel is 5-40 degrees.

7. The adjustable small-section tunnel drilling and blasting operation platform according to claim 5, wherein: the outer support tube (111) is provided with a first connecting hole (113), the inner support body (112) is provided with a second connecting hole (114), the outer support tube (111) is provided with a fixing rod (115) matched with the first connecting hole (113) and the second connecting hole (114), the number of the second connecting holes (114) is multiple, and the second connecting holes (114) are arranged at intervals.

8. The adjustable small-section tunnel drilling and blasting operation platform according to claim 5, wherein: the frame body (121) is provided with an inclined sleeve (123), the inner supporting body (112) penetrates through the inclined sleeve (123), and the inclined sleeve (123) is fixedly connected with the frame body (121).

9. The adjustable small-section tunnel drilling and blasting operation platform according to claim 8, wherein: the inclined sleeve (123) is provided with a bolt hole penetrating through the side wall, the inclined sleeve (123) is provided with a fastening bolt (124) matched with the bolt hole, and the fastening bolt (124) passes through the bolt hole to be abutted against the outer wall of the inner support body (112).

10. The adjustable small-section tunnel drilling and blasting operation platform according to claim 1, wherein: the bearing plate (3) lower surface is provided with two at least stopper (31), stopper (31) are crisscross to be set up along tunnel cross section direction and form one and are used for placing the thing chamber of putting of connecting piece (2).