CN218620065U

CN218620065U - Auxiliary mounting tool for steel arch frame

Info

Publication number: CN218620065U
Application number: CN202223044448.2U
Authority: CN
Inventors: 仁师军; 相飞飞; 范议泽; 刘培鑫; 吴培章; 赵旭升; 朱少博; 修鑫; 罗传忠; 刘栋; 卢彦宁; 李喜念
Original assignee: Third Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-14
Anticipated expiration: 2032-11-16

Abstract

The utility model provides a steel arch frame auxiliary mounting tool, which comprises a base, wherein the base is fixedly connected with a rod body, a lifting cavity and a loop cavity which are arranged in vertical directions are arranged in the rod body, the lifting cavity is communicated with the loop cavity through a connecting pipe, and the connecting pipe is connected with a pressure relief valve; a first piston is connected in the lifting cavity in a sliding manner, the upper end of the first piston is fixedly connected with a lifting rod, the lifting rod is connected with the rod body in a sliding manner, and the upper end of the lifting rod penetrates out of the lifting cavity and is connected with a bracket; the base is fixedly connected with a hydraulic pipe, the hydraulic pipe is connected with a piston rod in a sliding manner, the hydraulic pipe is communicated with the lifting cavity through a lifting branch pipe, and the hydraulic pipe is also communicated with the loop cavity through a loop branch pipe; one-way valves are arranged in the loop branch pipe and the lifting branch pipe. The device is convenient to operate, and can realize the height adjustment work of the device in a labor-saving manner, thereby realizing the support of the steel arch frame.

Description

Auxiliary mounting tool for steel arch frame

Technical Field

The utility model relates to a tunnel construction technical field, concretely relates to installation tool is assisted to steel bow member.

Background

With the rapid development of the traffic field in China, more and more tunnel engineering is developed and utilized, and various tunnels with complex geological types emerge continuously. In tunnel construction, a tunnel is generally divided into different small sections to perform sub-excavation, the exposed area of a tunnel face is reduced, and a steel arch is erected in time for primary support, so that the erection of the steel arch is the most important ring in the primary support of the tunnel, and the position of the arch is strictly controlled to be over-short and the inclination in order to ensure the tunnel construction quality in the process of erecting the steel arch.

In the prior art, chinese patent 201120166159.2 discloses a steel arch mounting auxiliary tool, which comprises a channel steel-shaped bayonet with an upper end open, wherein a screw is fixed at the lower end of the bayonet, a sleeve is sleeved outside the screw, a nut screwed on the screw is supported on the sleeve, a wrench is fixed on the side wall of the nut, and the wrench welded on the nut is rotated to enable the screw to support the steel arch to be lifted to a designed height, so that the labor intensity of workers is greatly reduced, the working procedure and the working time are shortened, and the tool is safe and reliable. However, the device has the following problem that the nut is required to be rotated only by a large force in a mode that the nut is driven to rotate and then the screw rod is driven to ascend due to the fact that the height of the device is adjusted by the driving nut to rotate, and the device is obviously inconvenient in practical use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, an auxiliary mounting tool for a steel arch is provided. The device is convenient to operate, and can realize the height adjustment work of the device in a labor-saving manner, thereby realizing the support of the steel arch frame.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a steel bow member auxiliary mounting tool, which comprises a base, wherein the base is fixedly connected with a rod body, a lifting cavity and a loop cavity which are arranged in vertical directions are arranged in the rod body, the lifting cavity is communicated with the loop cavity through a connecting pipe, and the connecting pipe is connected with a pressure release valve; a first piston is connected in the lifting cavity in a sliding manner, the upper end of the first piston is fixedly connected with a lifting rod, the lifting rod is connected with the rod body in a sliding manner, and the upper end of the lifting rod penetrates out of the lifting cavity and is connected with a bracket; the base is fixedly connected with a hydraulic pipe, the hydraulic pipe is connected with a piston rod in a sliding mode, the hydraulic pipe is communicated with the lifting cavity through a lifting branch pipe, and the hydraulic pipe is further communicated with the loop cavity through a loop branch pipe; and one-way valves are arranged in the loop branch pipe and the lifting branch pipe.

Preferably, a second piston is slidably connected in the hydraulic pipe, the upper end of the second piston is fixedly connected with the piston rod, and the upper end of the piston rod penetrates through the hydraulic pipe and then is connected with a rotating ball.

Preferably, a second spring is sleeved on the hydraulic pipe, the upper end of the second spring is connected with the piston rod, and the lower end of the second spring is connected with the hydraulic pipe.

Preferably, the first piston diameter is smaller than the second piston diameter.

Preferably, the rod body is fixedly connected with a fixed seat, the fixed seat is rotatably connected with a movable seat, the movable seat is arranged above the rotating ball, and the movable seat is connected with a pedal.

Preferably, the pedal plate is rotatably connected with the movable seat through a rotating shaft, sliding holes are formed in two sides of the pedal plate, a clamping block is connected in the sliding holes in a sliding mode, the clamping block is connected with the pedal plate through a first spring, and the movable seat is provided with a plurality of limiting holes matched with the clamping block.

Preferably, a tapered surface is formed on one side of the clamping block, the clamping block further comprises a horizontal plane which is in contact with the limiting hole, and one end of the clamping block penetrates out of the limiting hole.

Preferably, the upper end of the lifting rod is fixedly connected with a fixing sleeve, the bracket is fixedly connected with a connecting seat, and the connecting seat is in threaded connection with the fixing sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with the hydraulic circuit, utilize hydraulic principle, through setting up the piston of equidimension not, thereby realize laborsaving work, through trampling the running-board repeatedly, can drive the lifter and rise, and then realize the support work to the steel bow member, because two piston variation in size, therefore the piston rod removes longer distance, only can drive the less distance that the lifter rises, the height that makes the bracket rise at every turn is less, can realize accurate heightening work, thereby be convenient for bracket and steel bow member mutually support, realize the preliminary support to the steel bow member.

2. The utility model discloses in still be provided with rotatable running-board, when using, through pressing the fixture block, can make the fixture block shift out spacing hole to but the free rotation running-board, the angle that makes the running-board is more suitable, and the operating personnel of being convenient for tramples the running-board, realizes the decline of piston rod, realizes lifter height adjustment work.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of the present invention;

FIG. 2 is an overall side view of the present invention;

FIG. 3 is a schematic view of the overall hydraulic circuit of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3;

FIG. 5 is a schematic diagram of a portion of the hydraulic tube of FIG. 1;

FIG. 6 is a schematic view of the structure of the lifting rod of the present invention;

FIG. 7 is a schematic view of a portion of the step shown in FIG. 1;

fig. 8 is a side view of the pedal portion of fig. 1.

Description of the reference numerals:

1, a rod body; 11, fixing a sleeve; 12, fixing a base; 2, a bracket; 21 a connecting seat; 22 external threads; 3 a foot pedal; 31 a rotating shaft; 32 slide holes; 4, a movable seat; 41 a limiting hole; 5, clamping blocks; 51 a first spring; 52 a conical surface; 53 horizontal plane; 6 a loop cavity; 61, a pressure relief valve; 62 loop branch pipes; 7, a lifting cavity; 71 lifting the branch pipe; 72 a lifting rod; 8, a hydraulic pipe; 81 a piston rod; 82 a second spring; the ball is rotated 83.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example one

As shown in fig. 1 to 6, the embodiment provides an auxiliary mounting tool for a steel arch, which includes a base, the base is fixedly connected with a rod body 1 arranged in a vertical direction, and the rod body 1 is perpendicular to the base.

The lifting cavity 7 and the loop cavity 6 which are arranged in the vertical direction are arranged in the rod body 1, the loop cavity 6 is arranged on one side of the lifting cavity 7, the lifting cavity 7 is communicated with the loop cavity 6 through a connecting pipe, and the connecting pipe is connected with a pressure release valve 61.

Hydraulic oil is arranged in the lifting cavity 7 and the loop cavity 6, the pressure relief valve 61 can be opened or closed, and when the pressure relief valve 61 is opened, the hydraulic oil in the lifting cavity 7 can flow into the loop cavity 6 through the connecting pipe.

A first piston is connected in the lifting cavity 7 in a sliding mode, a lifting rod 72 is fixedly connected to the upper end of the first piston, the lifting rod 72 is connected with the rod body 1 in a sliding mode, and the upper end of the lifting rod 72 penetrates out of the lifting cavity 7 and then is connected with the bracket 2.

Fixed cover 11 of fixedly connected with in lifter 72 upper end, 2 fixedly connected with connecting seats 21 of bracket, connecting seat 21 are provided with external screw thread 22, are provided with the internal thread in the fixed cover 11, through external screw thread 22 and internal screw-threaded cooperation, can realize the threaded connection of connecting seat 21 and fixed cover 11, and external screw thread 22 specifically can be the design of M22 screw thread.

The brackets 2 have different specifications, the sizes of different brackets 2 are different, and the brackets 2 with different sizes can be replaced according to the types of the steel arch frames.

The base is fixedly connected with a hydraulic pipe 8, the hydraulic pipe 8 is connected with a piston rod 81 in a sliding mode, the hydraulic pipe 8 is communicated with the lifting cavity 7 through a lifting branch pipe 71, and the hydraulic pipe 8 is further communicated with the loop cavity 6 through a loop branch pipe 62; one-way valves are arranged in the loop branch pipe 62 and the lifting branch pipe 71.

Sliding connection has the second piston in hydraulic pressure pipe 8, second piston upper end and piston rod 81 fixed connection, is connected with commentaries on classics ball 83 after hydraulic pressure pipe 8 is worn out to piston rod 81 upper end, and piston rod 81 and hydraulic pressure pipe 8 sliding connection can drive piston rod 81 downstream through pressing commentaries on classics ball 83, and then drive the second piston downstream, can make hydraulic oil in the hydraulic pressure pipe 8 flow in lift chamber 7 through lift branch 71 to realize the rising of lifter 72.

The one-way valves in the branch pipe 62 and the branch pipe 71 have a function of preventing backflow, and when the hydraulic oil in the hydraulic pipe 8 flows into the lifting chamber 7 through the branch pipe 71, the lifting chamber 7 cannot flow into the hydraulic pipe 8 through the branch pipe 71 under the action of the one-way valves. When the hydraulic oil in the circuit chamber 6 flows into the hydraulic pipe 8 through the circuit branch pipe 62, the hydraulic oil in the hydraulic pipe 8 does not flow into the circuit chamber 6 through the circuit branch pipe 62 under the action of the check valve.

The hydraulic pipe 8 is sleeved with a second spring 82, the upper end of the second spring 82 is connected with the piston rod 81, and the lower end of the second spring 82 is connected with the hydraulic pipe 8. The second spring 82 is used for the return operation of the piston rod 81, when the piston rod 81 is pressed downwards, the second spring 82 is compressed, and when the piston rod 81 is not pressed any more, the piston rod 81 can be driven to return under the action of the second spring 82.

The diameter of the first piston is smaller than that of the second piston, and the ratio of pressures borne by the two pistons is equal to the ratio of the areas of the pistons and is irrelevant to the size of pressure according to the Pascal law; using this principle, a smaller force can be used to generate a larger force, at the expense of a smaller force displacement, similar to the lever principle. Therefore, the piston rod 81 moves a longer distance, and only can drive the lifting rod 72 to ascend by a smaller distance, so that the ascending height of the bracket 2 is smaller at each time, and the accurate height adjustment work can be realized, thereby facilitating the mutual matching of the bracket 2 and the steel arch and realizing the preliminary support of the steel arch.

The body of rod 1 fixedly connected with fixing base 12, fixing base 12 rotate and are connected with sliding seat 4, and sliding seat 4 sets up in changeing ball 83 top, and sliding seat 4 is connected with running-board 3.

When the movable seat 4 is driven to rotate around the fixed seat 12 by the pedal 3, the movable seat 4 can drive the piston rod 81 to move downwards by the rotating ball 83, so as to realize the lifting of the lifting rod 72.

Example two

Referring to fig. 7 to 8, the other structures are the same as those of the first embodiment except that the angle of the footrest is considered in this embodiment.

The pedal 3 is rotatably connected with the movable seat 4 through a rotating shaft 31, the pedal 3 is fixedly connected with the rotating shaft 31, two ends of the rotating shaft 31 are rotatably connected with the movable seat 4, and the pedal 3 can rotate around the rotating shaft 31.

The two sides of the pedal plate 3 are provided with slide holes 32, the slide holes 32 are connected with a fixture block 5 in a sliding manner, the fixture block 5 is connected with the pedal plate 3 through a first spring 51, and the movable seat 4 is provided with a plurality of limiting holes 41 matched with the fixture block 5.

The first spring 51 is arranged between the fixture block 5 and the pedal plate 3, one end of the first spring 51 is connected with the pedal plate 3, the other end of the first spring 51 is connected with the fixture block 5, and in an initial state, under the action of the first spring 51, one end of the fixture block 5 is arranged in the limiting hole 41 after moving out of the sliding hole 32.

One side of the fixture block 5 is provided with a tapered surface 52, the fixture block 5 further comprises a horizontal surface 53 contacting with the limiting hole 41, one end of the fixture block 5 penetrates through the limiting hole 41, the tapered surface 52 of the fixture block 5 is located in the limiting hole 41 under the action of the first spring 51, and the horizontal surface 53 of the fixture block 5 contacts with the limiting hole 41, so that the relative fixing work of the pedal plate 3 can be realized.

The specific working process is as follows: according to the model of the steel arch, the brackets 2 with different sizes are replaced, the connecting seats 21 of the brackets 2 are in threaded connection with the fixed sleeves 11, and therefore the relative fixing work of the brackets 2 is realized.

Inwards press fixture block 5, make the conical surface 52 of fixture block 5 and the edge of spacing hole 41 contact, through rotating running-board 3, under conical surface 52's effect, fixture block 5 moves to the direction that is close to slide opening 32, makes first spring 51 compress to the angle of rational adjustment running-board 3, after angular adjustment accomplished, under first spring 51's effect, fixture block 5 moved to spacing hole 41 in, made fixture block 5's horizontal plane 53 and spacing hole 41 contact, realized the relatively fixed work in fixture block 5 position.

When the base is installed, the base is located on a hard rock surface, then the pedal 3 is slowly stepped down, the pedal 3 drives the movable seat 4 to rotate around the fixed seat 12, the movable seat 4 drives the piston rod 81 to move downwards, so that the internal hydraulic oil of the hydraulic pipe 8 flows into the lifting cavity 7 through the lifting branch pipe 71, and the lifting rod 72 is driven to ascend, in the process, when the internal hydraulic oil of the hydraulic pipe 8 is reduced, the hydraulic oil in the loop cavity 6 flows into the hydraulic pipe 8 through the loop branch pipe 62, the second spring 82 realizes the resetting of the lifting rod 72, the one-way valves in the loop branch pipe 62 and the lifting branch pipe 71 can prevent the backflow of the hydraulic oil, and finally, the bracket 2 is tightly attached to the I-steel of the steel arch frame along with the intermittent downward stepping on the pedal 3, so that the primary supporting work of the steel arch frame is completed.

After the completion of the support, the relief valve 61 is opened, so that the hydraulic oil in the lift chamber 7 flows into the circuit branch pipe 62, and the lowering operation of the lift lever 72 is realized.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An auxiliary mounting tool for a steel arch comprises a base, wherein the base is fixedly connected with a rod body (1), and is characterized in that a lifting cavity (7) and a loop cavity (6) which are vertically arranged are formed in the rod body (1), the lifting cavity (7) is communicated with the loop cavity (6) through a connecting pipe, and the connecting pipe is connected with a pressure release valve (61); a first piston is connected in the lifting cavity (7) in a sliding manner, the upper end of the first piston is fixedly connected with a lifting rod (72), the lifting rod (72) is connected with the rod body (1) in a sliding manner, and the upper end of the lifting rod (72) penetrates out of the lifting cavity (7) and is connected with a bracket (2); the base is fixedly connected with a hydraulic pipe (8), the hydraulic pipe (8) is connected with a piston rod (81) in a sliding mode, the hydraulic pipe (8) is communicated with the lifting cavity (7) through a lifting branch pipe (71), and the hydraulic pipe (8) is further communicated with the loop cavity (6) through a loop branch pipe (62); and one-way valves are arranged in the loop branch pipe (62) and the lifting branch pipe (71).

2. The auxiliary installation tool for the steel arch according to claim 1, wherein a second piston is slidably connected in the hydraulic pipe (8), the upper end of the second piston is fixedly connected with the piston rod (81), and the upper end of the piston rod (81) penetrates out of the hydraulic pipe (8) and is connected with a rotating ball (83).

3. A steel arch auxiliary mounting tool according to claim 2, wherein the hydraulic pipe (8) is sleeved with a second spring (82), the upper end of the second spring (82) is connected with the piston rod (81), and the lower end of the second spring (82) is connected with the hydraulic pipe (8).

4. A steel arch auxiliary setting tool as claimed in claim 2, wherein the first piston diameter is smaller than the second piston diameter.

5. The auxiliary installation tool for the steel arch according to claim 2, wherein a fixed seat (12) is fixedly connected to the rod body (1), a movable seat (4) is rotatably connected to the fixed seat (12), the movable seat (4) is arranged above the rotating ball (83), and a pedal (3) is connected to the movable seat (4).

6. The auxiliary installation tool for the steel arch according to claim 5, wherein the pedal (3) is rotatably connected with the movable seat (4) through a rotating shaft (31), sliding holes (32) are formed in two sides of the pedal (3), a clamping block (5) is slidably connected in the sliding hole (32), the clamping block (5) is connected with the pedal (3) through a first spring (51), and a plurality of limiting holes (41) matched with the clamping block (5) are formed in the movable seat (4).

7. The auxiliary mounting tool for the steel arch centering according to claim 6, wherein a tapered surface (52) is formed on one side of the clamping block (5), the clamping block (5) further comprises a horizontal surface (53) contacting with the limiting hole (41), and one end of the clamping block (5) penetrates through the limiting hole (41).

8. The auxiliary installation tool for the steel arch according to claim 1, wherein a fixing sleeve (11) is fixedly connected to the upper end of the lifting rod (72), a connecting seat (21) is fixedly connected to the bracket (2), and the connecting seat (21) is in threaded connection with the fixing sleeve (11).