CN215165670U

CN215165670U - Supporting structure for excavation of foundation pit under narrow working surface

Info

Publication number: CN215165670U
Application number: CN202121271222.9U
Authority: CN
Inventors: 金立伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-14
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to a supporting construction technical field especially is used for supporting construction of excavation of foundation ditch under narrow working face. The telescopic device comprises a base frame, wherein a fixing hole is formed in one side of the base frame, a telescopic component is connected to one side of the fixing hole in a sliding mode, an air cylinder is fixedly connected to one side of the telescopic component, and a moving block is fixedly connected to one side of the air cylinder. The utility model has the advantages that: produce thrust through the cylinder, because power has the transmissibility, thrust can transmit on the movable block, under the effect of thrust, can make the movable block remove, and then drive the backup pad and remove, and then can dismantle I-shaped steel, later open the cylinder, make it contract to the minimum, exert a thrust to the fixed column, because power can change the motion state of object, can make the fixed column produce a motion trend, when this motion trend is greater than the static friction force sum between spring force and fixed column and the fixed orifices, make the fixed column move, make flexible post take in inside the chassis, can be convenient the installation when using, save space when depositing.

Description

Supporting structure for excavation of foundation pit under narrow working surface

Technical Field

The utility model relates to a supporting construction technical field especially is used for supporting construction of excavation of foundation ditch under narrow working face.

Background

When the sludge in the original ditch is more and the water depth in the ditch reaches the water peak, the water flow is turbulent and the working surface is narrow, the ditch needs to be penetrated according to the condition that the conventional drainage pipeline excavation construction does not meet, and the manual tunneling jacking pipe is adopted, so that the problems can be well solved, but the supporting measures in the construction process need to be strictly ensured.

The supporting structure for excavation of the foundation pit under the narrow working surface is not only troublesome to install, but also inconvenient to store when in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a supporting construction that is used for excavation of foundation ditch under the narrow working face, effectively solved prior art's not enough.

The purpose of the utility model is realized through the following technical scheme: a supporting construction for excavation of foundation ditch under narrow working face, including the chassis, the fixed orifices has been seted up to one side of chassis, one side sliding connection of fixed orifices has flexible component, one side fixedly connected with cylinder of flexible component, one side fixedly connected with movable block of cylinder, one side fixedly connected with backup pad of movable block, one side of backup pad is provided with worker's type groove, one side of worker's type groove is provided with worker's shaped steel, one side of worker's shaped steel is provided with fixed component.

Optionally, the telescopic member includes a plurality of fixing columns, the plurality of fixing columns are symmetrically distributed on one side of the spring, a thrust is applied to the fixing columns, the moving state of the object can be changed due to the force, the fixing columns can generate a moving trend, when the moving trend is greater than the sum of the spring force and the static friction force between the fixing columns and the fixing holes, the fixing columns can move, and the telescopic columns can be stretched through the arrangement of the telescopic member, so that the telescopic column is convenient to store and adjust.

Optionally, the number of the cylinders is a plurality, the cylinders are symmetrically distributed on one side of the telescopic column, when the cylinders are started, air can be input from the rodless air cavity and compressed, air is exhausted from the rod cavity, the piston is pushed to move by thrust formed by the pressure difference between the two cavities of the cylinders acting on the piston, the piston rod extends out to generate thrust, and power can be provided for the movement of the moving block through the arrangement of the cylinders.

Optionally, a sliding groove is formed in one side of the cylinder, the number of the sliding grooves is a plurality of, the plurality of sliding grooves are symmetrically distributed in one side of the cylinder, the shape and size of the sliding grooves are matched with the shape and size of the moving block, the cylinder generates thrust, the thrust can be transmitted to the moving block due to the force transmissibility, the motion state of an object can be changed due to the force, the moving block can generate a motion trend under the action of the thrust, when the motion trend is greater than the static friction force between the moving block and the sliding grooves, the moving block can move, the supporting plate is driven to move, the i-shaped steel can be pressed, the i-shaped steel can be in close contact with the i-shaped groove, and the i-shaped steel can be in close contact with the i-shaped groove through the arrangement of the moving block to play a supporting role.

Optionally, the fixing member includes a first fixing rod, a threaded hole is fixedly connected to one side of the first fixing rod, a threaded rod is rotatably connected to one side of the threaded hole, a second fixing rod is fixedly connected to one side of the threaded rod, a limiting hole is rotatably connected to one side of the second fixing rod, the thread pitch of the threaded hole is matched with the thread pitch of the threaded rod, the first fixing rod and the second fixing rod can be placed into the limiting hole due to the fact that the diameter of the first fixing rod and the diameter of the limiting hole are equal to each other, then a rotating force is applied to the first fixing rod and the second fixing rod, a relative movement trend can be generated between the first fixing rod and the second fixing rod due to the fact that the movement state of an object can be changed, and when the movement trend is greater than the static friction force between the threaded hole and the threaded rod, the first fixing rod and the second fixing rod can be relatively moved, and then the I-shaped steel is tightly pushed, and the transverse pressure resistance of the device can be enhanced through the arrangement of the fixing member.

The utility model has the advantages of it is following:

this a supporting construction for excavation of foundation ditch under narrow working face, produce thrust through the cylinder, because power has the transmissibility, thrust can transmit on the movable block, under the effect of thrust, can make the movable block remove, and then drive the backup pad and remove, and then can dismantle worker's shaped steel, later open the cylinder, make it contract to minimumly, exert a thrust to the fixed column at last, because power can change the motion state of object, can make the fixed column produce a motion trend, when this motion trend is greater than the static friction force sum between spring force and fixed column and the fixed orifices, can make the fixed column move, make flexible post take in inside the chassis, can conveniently install when using, save space when depositing.

Drawings

Fig. 1 is a schematic structural view of an assembly body of the present invention;

fig. 2 is a schematic sectional structure view of the assembly body of the present invention;

FIG. 3 is a schematic structural view of the support frame of the present invention;

FIG. 4 is a schematic structural view of the I-shaped steel of the present invention;

fig. 5 is a schematic structural view of the fixing member of the present invention;

fig. 6 is a schematic sectional view of the fixing member of the present invention.

In the figure: 1-underframe, 2-fixed hole, 3-telescopic component, 301-fixed column, 302-spring, 303-telescopic column, 4-cylinder, 5-moving block, 6-supporting plate, 7-I-shaped groove, 8-I-shaped steel, 9-fixed component, 901-first fixed rod, 902-threaded hole, 903-threaded rod, 904-second fixed rod, 10-sliding groove and 11-limiting hole.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 6, the supporting structure for excavation of a foundation pit under a narrow working surface comprises a base frame 1, a fixing hole 2 is formed in one side of the base frame 1, a telescopic member 3 is slidably connected to one side of the fixing hole 2, a cylinder 4 is fixedly connected to one side of the telescopic member 3, a moving block 5 is fixedly connected to one side of the cylinder 4, a supporting plate 6 is fixedly connected to one side of the moving block 5, a tool-shaped groove 7 is formed in one side of the supporting plate 6, a tool-shaped steel 8 is arranged on one side of the tool-shaped groove 7, and a fixing member 9 is arranged on one side of the tool-shaped steel 8.

As an optional technical solution of the utility model: the telescopic component 3 comprises a plurality of fixed columns 301, a spring 302 is fixedly connected to one side of each fixed column 301, a telescopic column 303 is fixedly connected to one side of each spring 302, the number of the fixed columns 301 is multiple, the fixed columns 301 are symmetrically distributed on one side of the springs 302, a thrust is applied to the fixed columns 301, the moving state of an object can be changed due to the force, the fixed columns 301 can generate a moving trend, and when the moving trend is larger than the sum of the elastic force of the springs 302 and the static friction force between the fixed columns 301 and the fixed holes 2, the fixed columns 301 can move.

As an optional technical solution of the utility model: the number of the cylinders 4 is a plurality, the cylinders 4 are symmetrically distributed on one side of the telescopic column 303, when the cylinders 4 are started, air can be input from the rodless air cavity and compressed, air is exhausted from the rod cavity, and the piston is pushed to move by thrust formed by the pressure difference between the two cavities of the cylinders 4 acting on the piston, so that the piston rod extends out to generate thrust.

As an optional technical solution of the utility model: one side of cylinder 4 is provided with sliding tray 10, the quantity of sliding tray 10 is a plurality of, a plurality of sliding tray 10 symmetric distribution is in one side of cylinder 4, the shape and the size of sliding tray 10 and the shape and the size looks adaptation of movable block 5, cylinder 4 produces thrust, because power has the transmissibility, thrust can transmit to the movable block 5 on, because power can change the motion state of object, under the effect of thrust, can make movable block 5 produce a motion trend, when this motion trend is greater than the static friction between movable block 5 and the sliding tray 10, can make movable block 5 remove, and then drive backup pad 6 and remove, can compress tightly I-shaped steel 8, make I-shaped steel 8 and I-shaped groove 7 in close contact with.

As an optional technical solution of the utility model: the fixing member 9 includes a first fixing rod 901, a threaded hole 902 is fixedly connected to one side of the first fixing rod 901, a threaded rod 903 is rotatably connected to one side of the threaded rod 902, a second fixing rod 904 is fixedly connected to one side of the threaded rod 903, a position-limiting hole 11 is rotatably connected to one side of the second fixing rod 904, the thread pitch of the threaded hole 902 is matched with the thread pitch of the threaded rod 903, since the diameters of the first fixing rod 901 and the second fixing rod 904 are equal to the diameter of the position-limiting hole 11, the first fixing rod 901 and the second fixing rod 904 can be placed in the position-limiting hole 11, and then a rotating force is applied to the first fixing rod 901 and the second fixing rod 904, since the force can change the moving state of an object, a relative moving trend can be generated between the first fixing rod 901 and the second fixing rod 904, when the moving trend is greater than the static friction force between the threaded hole 902 and the threaded rod 903, the first fixing rod 901 and the second fixing rod 904 can be moved relatively to push the i-section steel 8 tightly.

The working process of the utility model is as follows: when the user uses

S1: first, a pushing force is applied to the fixing post 301, and since the force can change the moving state of the object, a moving tendency can be generated on the fixing post 301, and when the moving tendency is larger than the sum of the elastic force of the spring 302 and the static friction force between the fixing post 301 and the fixing hole 2, the fixing post 301 can be moved.

S2: secondly, the air cylinder 4 is started, air can be input from the rodless air cavity and compressed, air is exhausted from the rod cavity, the piston is pushed to move by the thrust formed by the pressure difference between the two cavities of the air cylinder 4 acting on the piston, the piston rod extends out, and thrust is generated.

S3: finally, the first fixing rod 901 and the second fixing rod 904 can be placed in the limiting hole 11, and then a rotating force is applied to the first fixing rod 901 and the second fixing rod 904, so that the movement state of an object can be changed by the force, a relative movement trend can be generated between the first fixing rod 901 and the second fixing rod 904, and when the movement trend is greater than the static friction force between the threaded hole 902 and the threaded rod 903, the first fixing rod 901 and the second fixing rod 904 can relatively move, and the tool 8 is tightly pushed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A supporting construction for excavation of foundation ditch under narrow working face, its characterized in that: including chassis (1), fixed orifices (2) have been seted up to one side of chassis (1), one side sliding connection of fixed orifices (2) has flexible component (3), one side fixedly connected with cylinder (4) of flexible component (3), one side fixedly connected with movable block (5) of cylinder (4), one side fixedly connected with backup pad (6) of movable block (5), one side of backup pad (6) is provided with worker's type groove (7), one side of worker's type groove (7) is provided with worker's shaped steel (8), one side of worker's shaped steel (8) is provided with fixed component (9).

2. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: the telescopic component (3) comprises fixing columns (301), a spring (302) is fixedly connected to one side of each fixing column (301), telescopic columns (303) are fixedly connected to one side of the spring (302), the number of the fixing columns (301) is a plurality, and the fixing columns (301) are symmetrically distributed on one side of the spring (302).

3. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: the number of the fixing holes (2) is a plurality, the fixing holes (2) are linearly arrayed on one side of the bottom frame (1), and the diameter of each fixing hole (2) is equal to that of each fixing column (301).

4. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: the number of the air cylinders (4) is a plurality, and the air cylinders (4) are symmetrically distributed on one side of the telescopic column (303).

5. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: one side of the cylinder (4) is provided with a plurality of sliding grooves (10), the number of the sliding grooves (10) is a plurality, the sliding grooves (10) are symmetrically distributed on one side of the cylinder (4), and the shapes and the sizes of the sliding grooves (10) are matched with those of the moving block (5).

6. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: the number of the I-shaped steel (8) is several, the I-shaped steel is symmetrically distributed on one side of the supporting plate (6), and the shape and the size of the I-shaped steel (8) are matched with those of the I-shaped groove (7).

7. The support structure for excavation of a foundation pit under a narrow working surface of claim 1, wherein: the fixing component (9) comprises a first fixing rod (901), a threaded hole (902) is fixedly connected to one side of the first fixing rod (901), a threaded rod (903) is rotatably connected to one side of the threaded hole (902), a second fixing rod (904) is fixedly connected to one side of the threaded rod (903), a limiting hole (11) is rotatably connected to one side of the second fixing rod (904), and the thread pitch of the threaded hole (902) is matched with the thread pitch of the threaded rod (903).