Support frame for subway construction

Abstract

The utility model discloses a support frame for subway civil engineering specifically relates to mechanical engineering technical field, including bottom plate, support, the top of bottom plate is provided with arc plate, the bottom assembly of arc plate has the separation mechanism, the top assembly of arc plate has the buffer mechanism, the separation mechanism includes sliding rod, the inside below sliding rod is provided with the baffle, the left side fixedly connected with sliding plate of baffle, the left side fixedly connected with first guide post of sliding plate, the outside of first guide post is provided with first spring, the inside below sliding rod is provided with first sliding slot. The utility model discloses a support frame for subway civil engineering, improves traditional support frame for subway civil engineering, and the stability of height change of traditional support frame for subway civil engineering is improved by utilizing additional structure, prevents the upper support from completely separating due to the rotation or vibration of threaded rod and other reasons, plays the effect of preventing the collapse, falling and other safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a support frame for subway civil engineering. Background Technology

[0002] A subway is a high-capacity, high-speed urban rail transit system that mainly operates in underground tunnels, with some lines extending to the ground or elevated sections. It uses dedicated tracks as its transportation route, is electrically powered, and stops at fixed stations to provide urban residents with convenient, punctual, and high-capacity public transportation services.

[0003] Subway civil engineering support frames are key equipment used for temporary or permanent support structures during subway construction. Their main functions are to bear loads, stabilize surrounding rock or structures, prevent collapse and deformation, and ensure construction safety and project quality.

[0004] However, existing subway civil engineering support frames have the following shortcomings: Traditional subway civil engineering support frames utilize a motor to rotate a threaded rod during subway construction. This rotation causes a nut or cylinder that mates with the threaded rod to move up and down along the rod, thus raising or lowering the support frame. The support frame must withstand loads from the surrounding rock and temporary structures. If the upper support frame completely detaches due to the rotation or vibration of the threaded rod, it will lead to support failure and cause safety accidents such as collapse or falling. Utility Model Content

[0005] The main purpose of this utility model is to provide a support frame for subway civil engineering, which can effectively solve the problem that the upper support may completely detach due to the rotation or vibration of the threaded rod, resulting in support failure and causing safety accidents such as collapse and falling.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A support frame for subway civil engineering includes a base plate and a support frame. An arc-shaped plate is provided on the top of the base plate, a release mechanism is installed at the bottom of the arc-shaped plate, and a buffer mechanism is installed on the top of the arc-shaped plate. The disengagement mechanism includes a sliding rod, a stop is provided inside the lower part of the sliding rod, a slide plate is fixedly connected to the left side of the stop, a first guide post is fixedly connected to the left side of the slide plate, a first spring is provided outside the first guide post, and a first groove is opened inside the lower part of the sliding rod.

[0007] Preferably, one side of the first spring is fixedly connected to the inside below the sliding rod, and the other side of the first spring is fixedly connected to the side end of the slide plate.

[0008] Preferably, a tapered threaded rod is provided at each of the four corners of the base plate, a DC motor is provided in the middle of the base plate, a column is sleeved on the outside of the DC motor output shaft, and a first threaded rod is provided at the sleeve joint between the column and the DC motor output shaft.

[0009] Preferably, a second threaded rod is provided at the top of the column, and a threaded sleeve is provided outside the second threaded rod. The top of the threaded sleeve is located at the bottom of the arc-shaped plate, and a guide rod is provided at the bottom right side of the arc-shaped plate. The outside of the guide rod and the outside of the threaded sleeve are slidably connected inside the bracket.

[0010] Preferably, the buffer mechanism includes an arc-shaped buffer plate, with a plurality of second guide posts at the bottom of the arc-shaped buffer plate. The outer side of each second guide post is slidably connected to the inside of the arc-shaped plate, and a second spring is provided on the outer side of each second guide post.

[0011] Preferably, each second guide post is provided with limit blocks on both the left and right sides, and the arc plate has multiple second sliding grooves inside, with the side end of each limit block slidably connected to the inside of the second sliding groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By setting up a detachment mechanism, the movement of the stop block drives the sliding plate to slide, the first guide column slides inside the first slide groove, and the first spring deforms. The mechanism adopts the mechanical transmission principle, which improves the traditional subway civil engineering support frame. It uses additional structures to improve the stability of the traditional subway civil engineering support frame when changing height, and prevents the upper support from completely detaching due to the rotation or vibration of the threaded rod, so as to prevent safety accidents such as collapse and fall. By setting up a buffer mechanism, the second guide column slides inside the arc plate, the limiting block slides inside the second slide groove, and the second spring deforms. When the upper part collapses, it plays a role in stabilizing the entire support frame. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional view of the overall structure of this utility model from below; Figure 3 This is a three-dimensional cross-sectional view of the column and threaded sleeve of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the sliding rod of this utility model; Figure 5 This is a three-dimensional cross-sectional view of the arc-shaped plate of this utility model.

[0014] In the diagram: 1. Base plate; 2. Conical threaded rod; 3. Disengagement mechanism; 31. Stop block; 32. Slide plate; 33. First guide post; 34. First spring; 35. First slide groove; 36. Sliding rod; 4. Buffer mechanism; 41. Arc-shaped buffer plate; 42. Second guide post; 43. Limiting block; 44. Second slide groove; 45. Second spring; 5. DC motor; 6. Column; 7. First threaded rod; 8. Second threaded rod; 9. Bracket; 10. Threaded sleeve rod; 11. Arc-shaped plate; 12. Guide rod. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 -Appendix Figure 5 As shown, a support frame for subway construction includes a base plate 1 and a support 9. An arc-shaped plate 11 is mounted on the top of the base plate 1. A release mechanism 3 is mounted on the bottom of the arc-shaped plate 11, and a buffer mechanism 4 is mounted on the top of the arc-shaped plate 11. The release mechanism 3 includes a sliding rod 36. A stop block 31 is disposed inside the lower part of the sliding rod 36. A sliding plate 32 is fixedly connected to the left side of the stop block 31. A first guide post 33 is fixedly connected to the left side of the sliding plate 32. A first spring 34 is disposed outside the first guide post 33. A first groove 35 is formed inside the lower part of the sliding rod 36. One side of the first spring 34 is fixedly connected to the inner part below the sliding rod 36. The other side of the first spring 34 is fixedly connected to the side end of the slide plate 32. Conical threaded rods 2 are provided at the four corners of the base plate 1. A DC motor 5 is provided in the middle of the base plate 1. A column 6 is sleeved on the outside of the output shaft of the DC motor 5. A first threaded rod 7 is provided at the sleeve of the column 6 and the output shaft of the DC motor 5. A second threaded rod 8 is provided on the top of the column 6. A threaded sleeve 10 is provided on the outside of the second threaded rod 8. The top of the threaded sleeve 10 is provided at the bottom of the arc plate 11. A guide rod 12 is provided at the bottom right side of the arc plate 11. The outside of the guide rod 12 and the outside of the threaded sleeve 10 are slidably connected inside the bracket 9.

[0017] The overall effect of Embodiment 1 is as follows: the relevant components can improve the stability of the traditional subway civil engineering support frame in changing height through mechanical transmission. The function of setting a strong first spring 34 is to prevent the stop block 31 from sliding due to external factors. The function of setting a sliding plate 32 is to facilitate the sliding of the stop block 31 inside the sliding rod 36 under human force. This mechanical transmission method prevents the upper support from completely detaching due to the rotation or vibration of the threaded rod, and plays a role in preventing safety accidents such as collapse and falling.

[0018] Example 2, as Figures 1-5As shown, the buffer mechanism 4 includes an arc-shaped buffer plate 41. A plurality of second guide posts 42 are provided at the bottom of the arc-shaped buffer plate 41. The outer side of each second guide post 42 is slidably connected to the inside of the arc-shaped plate 11. A second spring 45 is provided on the outer side of each second guide post 42. Limiting blocks 43 are provided on both the left and right sides of each second guide post 42. A plurality of second sliding grooves 44 are opened inside the arc-shaped plate 11. The side end of each limiting block 43 is slidably connected to the inside of the second sliding groove 44.

[0019] The effect achieved by the entire embodiment 2 is as follows: the second guide post 42 slides inside the arc plate 11, the limiting block 43 slides inside the second slide groove 44, the second spring 45 deforms, and when the upper part collapses, it plays a role in stabilizing the entire support frame. The function of setting the limiting block 43 with a large friction coefficient is to provide a certain resistance for the deformation of the second spring 45.

[0020] Before starting work, ensure that all parts of the structure are in a stable state to prevent any parts from malfunctioning after the work is completed.

[0021] When supporting the top of the subway construction site, place the device at the location where top support is needed, rotate the conical bottom threaded rod 2 so that the bottom end of the conical bottom threaded rod 2 is inserted into the subway construction site, start the DC motor 5, the output shaft of the DC motor 5 drives the second threaded rod 8 to rotate, the threaded sleeve rod 10, the sliding rod 36 and the guide rod 12 move upward inside the bracket 9, and simultaneously drive the top arc plate 11 and arc buffer plate 41 to move upward. When the threaded sleeve rod 10 is unlocked and disengaged from the outside of the second threaded rod 8, start the DC motor 5. When the stop block 31 is close to the bottom of the bracket 9, move the slide plate 32 away from the center of the second threaded rod 8. The slide plate 32 drives the first guide post 33 to slide inside the first slide groove 35, the first spring 34 deforms, and the sliding rod 36 disengages from the inside of the bracket 9 as the DC motor 5 rotates.

[0022] When stabilizing the entire support frame, the arc-shaped buffer plate 41 is subjected to pressure from the top, which causes the second guide column 42 to slide inside the arc-shaped plate 11. The limiting block 43 slides synchronously inside the second slide groove 44. When the arc-shaped buffer plate 41 moves downward, the second spring 45 deforms under the downward compression of the arc-shaped buffer plate 41.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A support frame for subway civil engineering, characterized in that: Includes a base plate (1) and a bracket (9). The top of the base plate (1) is provided with an arc plate (11), the bottom of the arc plate (11) is equipped with a release mechanism (3), and the top of the arc plate (11) is equipped with a buffer mechanism (4). The disengagement mechanism (3) includes a sliding rod (36), a stop (31) is provided inside the lower part of the sliding rod (36), a slide plate (32) is fixedly connected to the left side of the stop (31), a first guide post (33) is fixedly connected to the left side of the slide plate (32), a first spring (34) is provided outside the first guide post (33), and a first groove (35) is opened inside the lower part of the sliding rod (36).

2. The subway civil engineering support frame according to claim 1, characterized in that: One side of the first spring (34) is fixedly connected to the inside of the sliding rod (36), and the other side of the first spring (34) is fixedly connected to the side end of the slide plate (32).

3. The subway civil engineering support frame according to claim 1, characterized in that: The base plate (1) is provided with tapered threaded rods (2) at the four corners, and a DC motor (5) is provided in the middle of the base plate (1). A column (6) is sleeved on the outside of the output shaft of the DC motor (5), and a first threaded rod (7) is provided at the sleeve of the column (6) and the output shaft of the DC motor (5).

4. The subway civil engineering support frame according to claim 3, characterized in that: The top of the column (6) is provided with a second threaded rod (8), and the outside of the second threaded rod (8) is provided with a threaded sleeve rod (10). The top of the threaded sleeve rod (10) is provided at the bottom of the arc plate (11), and the bottom of the right side of the arc plate (11) is provided with a guide rod (12). The outside of the guide rod (12) and the outside of the threaded sleeve rod (10) are slidably connected inside the bracket (9).

5. The subway civil engineering support frame according to claim 1, characterized in that: The buffer mechanism (4) includes an arc-shaped buffer plate (41), and a plurality of second guide posts (42) are provided at the bottom of the arc-shaped buffer plate (41). The outer side of each second guide post (42) is slidably connected to the inside of the arc-shaped plate (11), and a second spring (45) is provided on the outer side of each second guide post (42).

6. The subway civil engineering support frame according to claim 5, characterized in that: Each of the second guide posts (42) is provided with a limiting block (43) on both the left and right sides. The arc plate (11) has multiple second sliding grooves (44) inside. The side end of each limiting block (43) is slidably connected to the inside of the second sliding groove (44).

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