Inflatable vertical telescopic transmission supporting device

Abstract

The invention discloses an inflatable vertical telescopic transmission supporting device which comprises supporting steel plates erected on the left side and the right side in a groove correspondingly, the supporting steel plates make contact with the groove wall of the excavated groove, and two grooves are formed in each of the front side and the rear side of the soil back face of each supporting steel plate in an up-down spaced mode. A group of supporting structures are respectively mounted between the two grooves in the front side of the supporting steel plate on the left side and the two grooves in the front side of the supporting steel plate on the right side as well as between the two grooves in the rear side of the supporting steel plate on the left side and the two grooves in the rear side of the supporting steel plate on the right side, and each group of supporting structures is respectively connected with a pushing device. The supporting structure can be driven by the pushing device to move and abut against the supporting steel plate. The structure is simple, only supports and steel plates are needed, surrounding purlins are not needed, occupied space is small, and transferring is convenient.

Description

Technical Field

[0001] The invention relates to an inflatable vertical telescopic transmission support device, in particular to an inflatable vertical telescopic transmission support device for trench excavation. Background Art

[0002] The existing trench support is mainly in the form of Larsen steel sheet piles + steel purlins + steel supports, which cause great disturbance to the soil, are slow to erect, and are costly. In addition, the axial force changes are invisible and the deformation monitoring of the support is not accurate.

[0003] A Chinese patent with publication number CN118242114B discloses a mechanical support device for coal mining, including a vehicle body, a support mechanism, a conveying screw and a transmission mechanism; the support mechanism includes a main rod, a folding airbag, a telescopic limiting mechanism and an unfolding mechanism; the unfolding mechanism is moved upward by inflating the folding airbag; the two support rods located in the main rod are extended from the main rod by the telescopic limiting mechanism, and the support rods are limited; the unfolding mechanism is extended to support the top of the mine during the movement of the support rod; the deformation of the airbag only allows the unfolding mechanism to rise to a certain position, and the deformation of the support is not transmitted to the support rod through the deformation of the airbag. The airbag and the support rod are two independent parts, and it is impossible to sense the deformation of the support through the change of the airbag. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an inflatable vertical telescopic transmission support device that can accurately monitor the support status by means of a pressure gauge.

[0005] In order to solve the technical problems existing in the existing construction, the present invention adopts the following technical solutions:

[0006] The inflatable vertical telescopic transmission support device of the present invention comprises support steel plates respectively standing on the left and right sides of the trench, the support steel plates are in contact with the trench wall of the excavated trench, two grooves are respectively arranged at intervals up and down on each side of the front and rear sides of the back soil surface of the support steel plates, a group of support structures are respectively installed between the two grooves on the front side of the left support steel plate and the two grooves on the front side of the right support steel plate and between the two grooves on the rear side of the left support steel plate and the two grooves on the rear side of the right support steel plate, each group of support structures comprises two left and right upper support rods and two left and right lower support rods, The outer ends of the support rod and the two lower support rods are respectively rotatably connected to a hemispherical support through an outer pin shaft, and each hemispherical support is inserted into the groove at the corresponding position and engages with the groove. The inner ends of the two upper support rods are rotatably connected to the upper end of an upper column arranged along the vertical direction through an upper pin shaft, and the inner ends of the two lower support rods are respectively rotatably connected to the lower end of a lower column arranged along the vertical direction through a lower pin shaft. The upper column and the lower column are connected to a pushing device, and the upper column and the lower column can push the upper support rod and the lower support rod to displace and tighten the support steel plate through the hemispherical support under the drive of the pushing device.

[0007] Beneficial effects of the present invention:

[0008] (1) The device is easy to disassemble, and the upper and lower supports can be fixed in one operation.

[0009] (2) The structure is simple, requiring only supports and steel plates, but no purlins.

[0010] (3) The support can be folded up, taking up little space and making transportation easy.

[0011] (4) The displacement and tightening of the support are controlled by inflation of the airbag, and the support status can be accurately monitored by a pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram showing the use status of an inflatable vertical telescopic transmission support device of the present invention;

[0013] Figure 2 This is a diagram of an inflatable vertical telescopic transmission support device airbag in an uninflated state;

[0014] Figure 3 This is a diagram showing the inflated state of an airbag of an inflatable vertical telescopic transmission support device of the present invention;

[0015] Figure 4 It is a left view of a steel plate of an inflatable vertical telescopic transmission support device of the present invention;

[0016] Figure 5 It is a front view of a steel plate of an inflatable vertical telescopic transmission support device of the present invention;

[0017] Figure 6 It is a three-dimensional diagram of the position of an airbag and a baffle of an inflatable vertical telescopic transmission support device of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] As shown in the accompanying drawings, an inflatable vertical telescopic transmission support device of the present invention comprises support steel plates 1 respectively standing on the left and right sides of the trench, the support steel plates 1 are in contact with the trench wall of the excavated trench, and two grooves are respectively arranged at intervals up and down on each side of the front and rear sides of the back soil surface of the support steel plate, and a group of support structures are respectively installed between the two grooves on the front side of the left support steel plate and the two grooves on the front side of the right support steel plate, and between the two grooves on the rear side of the left support steel plate and the two grooves on the rear side of the right support steel plate, each group of support structures comprises two left and right upper support rods 3-1 and two left and right lower support rods 3-2, and between the two upper support rods 3-1 and The outer ends of the two lower support rods 3-2 are rotatably connected to a hemispherical support 2 through outer pin shafts, and each hemispherical support is inserted into the groove at the corresponding position and engages with the groove. The inner ends of the two upper support rods 3-1 are rotatably connected to the upper end of an upper column 4-1 set along the vertical direction through an upper pin shaft, and the inner ends of the two lower support rods 3-2 are rotatably connected to the lower end of a lower column 4-2 set along the vertical direction through a lower pin shaft. The upper column 4-1 and the lower column are connected to a pushing device, and the upper column 4-1 and the lower column can push the upper support rod and the lower support rod to move and tighten the support steel plate through the hemispherical support 2 under the drive of the pushing device.

[0020] As a preferred embodiment of the present invention, the pushing device includes an annular columnar telescopic airbag 5, the lower end of the upper column 4-1 and the upper end of the lower column are respectively inserted into the cavity in the middle of the telescopic airbag, and an annular conical limit baffle 6 is respectively arranged at the lower part of the upper column and the upper part of the lower column. The annular telescopic airbag is stuck between the upper and lower annular conical limit baffles, and the annular conical limit baffle is used to transfer the force and deformation generated by the airbag. The annular telescopic airbag can only be extended and retracted along the axial direction of the lower column and the upper column during inflation and deflation.

[0021] The method of using the device is as follows: two supporting steel plates 1 are respectively placed at the bottom of the groove, close to the groove wall, the hemispherical supports 2 at both ends of the upper supporting rod 3-1 are engaged with the grooves on the supporting steel plates, and the telescopic airbag 5 is inserted and installed on the upper column 4-1. The telescopic airbag 5 is fitted with the annular conical limiting baffle 6 on the upper column 4-1. In the same way, the hemispherical supports 2 at both ends of the lower supporting rod 3-2 are engaged with the grooves on the supporting steel plates to complete the installation, and the lower column 4-2 is inserted into the airbag hole. After installation, the airbag 5 is stuck between the upper and lower annular conical limiting baffles 6, the telescopic airbag 5 is inflated, the airbag is deformed, and at the same time, the upper supporting rod 3-1 is pushed to contact the lower supporting rod 4-2. The annular conical limit baffle at the support rod 3-2 is displaced, thereby driving the upper column 4-1 and the lower column 4-2. The upper column 4-1 vertically pushes the upper support rod 3-1, and the lower column 4-2 vertically pushes the lower support rod 3-2 to increase the angle between the upper support rod 3-1 and the lower support rod 3-2, thereby tightening the steel plate 1 to form a stable system. A pressure gauge can be installed at the inflation port of the telescopic airbag 5. The pressure gauge is connected to a computer. The air pressure value of the pressure gauge is transmitted to the computer, and the air pressure value is transmitted to the management platform through the computer. Once the air pressure changes, the personnel immediately leave the working surface, thereby achieving the purpose of accurate monitoring.

[0022] The above-mentioned specific implementations are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many modifications without departing from the spirit of the present invention and the scope of protection of the claims, all of which are protected by the present invention.

Claims

1. An inflatable vertical telescopic transmission support device, comprising support steel plates respectively standing on the left and right sides of the trench, wherein the support steel plates are in contact with the trench wall of the excavated trench, characterized in that: Two grooves are arranged at intervals on each side of the front and rear sides of the back soil surface of the supporting steel plate, and a group of supporting structures are installed between the two grooves on the front side of the left supporting steel plate and the two grooves on the front side of the right supporting steel plate, and between the two grooves on the rear side of the left supporting steel plate and the two grooves on the rear side of the right supporting steel plate, respectively. Each group of supporting structures includes two left and right upper supporting rods and two left and right lower supporting rods. A hemispherical support rod is rotatably connected to the outer ends of the two upper supporting rods and the two lower supporting rods through outer pin shafts. The support, each hemispherical support is inserted into the groove at the corresponding position one by one and engages with the groove, the inner ends of the two upper support rods are rotatably connected to the upper end of an upper column arranged along the vertical direction through an upper pin shaft, and the inner ends of the two lower support rods are rotatably connected to the lower end of a lower column arranged along the vertical direction through a lower pin shaft, the upper column and the lower column are connected to the pushing device, and the upper column and the lower column can push the upper support rod and the lower support rod to displace and tighten the support steel plate through the hemispherical support under the drive of the pushing device.

2. The inflatable vertical telescopic transmission support device according to claim 1 is characterized in that: The pushing device includes an annular cylindrical telescopic airbag, the lower end of the upper column and the upper end of the lower column are respectively inserted into the cavity in the middle of the telescopic airbag, and an annular conical limit baffle is respectively arranged at the lower part of the upper column and the upper part of the lower column. The annular telescopic airbag is stuck between the upper and lower annular conical limit baffles. The annular telescopic airbag can only be extended and retracted along the axial direction of the lower column and the upper column during inflation and deflation.

3. The pneumatic vertical telescopic transmission support device according to claim 2 is characterized in that: A barometer is installed at the inflation port of the telescopic airbag, the barometer is connected to a computer, and the air pressure value of the barometer is transmitted to the computer.

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