Pile profile steel guiding instrument

Abstract

The utility model relates to a pile profile steel guiding instrument which comprises a support component and a supporting leg component, the supporting leg component is arranged at the bottom end of the support component, a plurality of nylon rolling bearings are arranged on the inner wall of the support component, a first carrier roller and second carrier rollers are erected in parallel, and the second carrier rollers are arranged at the two ends of the support component. The first carrier roller is arranged in the middle of the second carrier roller, nylon roller lug plates are erected at the two ends of the nylon roller bearing, the support component is provided with a first transverse shaft, and the first transverse shaft is fixedly connected with the nylon roller lug plates. The pile section steel guiding instrument has the advantages of improving the linearity and perpendicularity of the section steel, being convenient to install, improving the safety, reducing the cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of pile-type steel guide, in particular to a pile-type steel guide instrument. Background Art

[0002] At present, the SMW method is to use a multi-axis drilling and mixing machine to drill to a certain depth on site, and at the same time spray cement-based strengthening agents at the drill bit to repeatedly mix and stir with the foundation soil. The overlapping and lap construction is adopted between the construction units, and then H-shaped steel is inserted as its stress reinforcement material before the cement-soil mixture hardens. When the cement hardens, a continuous, complete, and seamless underground wall with certain strength and rigidity is formed. The wall is equipped with purlins and supports to support the soil pressure and groundwater penetration. The excavation of the foundation pit creates dry land conditions. It is an important support and enclosure method for the foundation pit design. The H-shaped steel of the SMW method can be reused, generally at least four times. In the construction process of underground continuous walls and bored piles as enclosures, a large amount of steel bars are used, which cannot be recycled and reused, resulting in a huge consumption of steel resources. Therefore, it is necessary to try to adopt construction processes such as the SMW method that can reduce the consumption of resources such as steel.

[0003] If the linearity and verticality of the steel sections are not well controlled when inserting SMW method piles, on the one hand, the steel sections will not be in the same plane after the foundation pit is excavated, and it will be difficult to install the support after installing the purlins and waist beams, and they will not be able to cooperate to resist the soil pressure. On the other hand, for underground tunnels with one-way formwork, the steel sections of the subway station occupy the main side wall space, resulting in insufficient design effective wall thickness, and the reinforced concrete protective layer does not meet the design requirements. Therefore, controlling the verticality and linearity of the steel sections is the main control project for implementing the quality of SMW method piles.

[0004] For this purpose, we have developed a pile steel guide instrument to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a pile steel guide instrument in order to overcome the deficiencies of the prior art, which has the advantages of improving the linearity and verticality of the steel, facilitating installation, improving safety, reducing costs, and the like.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pile-type steel guide instrument, including a bracket component, the four corners of the bottom end of the bracket component can be adjusted to connect the support foot components, a plurality of bearing assemblies are provided on the inner wall of the bracket component in the length direction, the bearing assembly includes a nylon roller bearing, the bracket component is provided with a first roller and a second roller arranged in parallel, the second roller is arranged at both ends of the bracket component, the first roller is arranged at the middle position of the second roller, nylon roller ear plates are provided at both ends of the nylon roller bearing, the bracket component is provided with a first horizontal axis, and the first horizontal axis is fixedly connected to the nylon roller ear plate.

[0007] Preferably, the support component includes a second horizontal axis and a vertical axis, and the first horizontal axis, the second horizontal axis and the vertical axis are respectively vertically fixedly connected.

[0008] Preferably, the support leg component includes an adjustable support leg body, a slotted nut is screwed onto the support leg body, the second transverse axis is provided with a connecting hole, the support leg body is arranged through the connecting hole, and the slotted nut abuts against the second transverse axis.

[0009] Preferably, the nylon rolling ear plate includes a supporting inclined plate, a vertical first frustum is provided at the top end of the supporting inclined plate, a second frustum is provided at the side wall of the first frustum, and a through hole is provided at the center position of the first frustum.

[0010] Preferably, the angle between the supporting inclined plate and the vertical plane is α, 60°≤α≤75°.

[0011] Preferably, a rotating shaft is inserted into the center of the nylon roller bearing, and the rotating shaft is inserted and locked with the through hole.

[0012] Preferably, a threaded end is respectively provided at both ends of the second roller, and the threaded end is screwed with a shoulder fastener.

[0013] Preferably, the second transverse axis is provided with a row of threaded holes, the threaded ends are fixedly connected to the threaded holes and are locked by the shoulder fasteners.

[0014] Preferably, a plane is provided at the middle position of the first roller, and a strip hole is provided at the middle position of the plane.

[0015] Preferably, the number of the first rollers and the number of the second rollers are both 4.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] 1. By setting up the guide instrument, it is effectively avoided that the steel sections are not on the same plane after the foundation pit is excavated, which is convenient for the installation of supporting purlins and waist beams, effectively ensuring the coordinated force of the pile wall steel purlins and supports, and reducing the safety risks after the foundation pit excavation.

[0018] 2. For subway stations or underpass tunnel foundation pits with one-way formwork, avoid the steel sections encroaching on the size of the main body, reduce the number of foundation pit fertilizer troughs, avoid wasting materials by backfilling the fertilizer troughs, and generate greater economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the pile-type steel guide instrument described in the utility model.

[0020] Figure 2It is a top view of the pile-type steel guide instrument described in the utility model.

[0021] Figure 3 It is a left view of the pile-type steel guide instrument described in the utility model.

[0022] Figure 4 It is a schematic structural diagram of the second roller of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the nylon rolling ear plate described in the utility model.

[0024] Figure 6 It is a structural schematic diagram of the nylon roller bearing described in the utility model.

[0025] Figure 7 It is a schematic structural diagram of the hole expansion of the first roller in the utility model. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figures 1 to 7 In the invention, a pile steel guide instrument includes a bracket component, the bottom four corners of the bracket component can be adjusted to connect the support foot component, a plurality of bearing assemblies 30 are arranged on the inner wall of the bracket component in the length direction, the bearing assembly 30 includes a nylon roller bearing 40, the bracket component is provided with a first roller 20 and a second roller 21 arranged in parallel, the second roller 21 is arranged at both ends of the bracket component, the first roller 20 is arranged at the middle position of the second roller 21, nylon roller ear plates 31 are arranged at both ends of the nylon roller bearing 40, the bracket component is provided with a first transverse axis 18, and the first transverse axis 18 is fixedly connected to the nylon roller ear plate 31. A threaded end 211 is respectively arranged at both ends of the second roller 21, and a shoulder fastener 22 is screwed on the threaded end 211. A rotating shaft 41 is inserted into the center of the nylon roller bearing 40, and the rotating shaft 41 is inserted and locked with the through hole 35. The bottom end of the bracket component forms a frame through the second horizontal axis 15 and the first horizontal axis 18 , and the top end forms a frame through the third horizontal axis 17 and the first horizontal axis 18 . The upper and lower frames are supported by the vertical axis 16 .

[0028] The bracket component includes a second transverse axis 15 and a vertical axis 16. The first transverse axis 18, the second transverse axis 15 and the vertical axis 16 are respectively vertically fixedly connected. The second transverse axis 15 is provided with a row of threaded holes 152. The threaded ends 211 are fixedly connected to the threaded holes 152 and locked by shoulder fasteners 22.

[0029] The support leg member includes an adjustable support leg body 10, a slotted nut 11 is screwed onto the support leg body 10, a connecting hole 151 is provided on the second transverse axis 15, the support leg body 10 is arranged through the connecting hole 151, and the slotted nut 11 abuts against the second transverse axis 15. The thread 111 of the slotted nut 11 is adjustably connected to the support leg body 10. The support leg body 10 adjusts the second transverse axis 15 up and down.

[0030] The nylon rolling ear plate 31 includes a supporting inclined plate 311, a vertical first truncated cone 33 is provided at the top of the supporting inclined plate 311, a second truncated cone 32 is provided at the side wall of the first truncated cone 33, and a through hole 35 is provided at the center of the first truncated cone 33. The inner diameter of the through hole is 12 mm, the radius of the second truncated cone 32 is 22 mm, and the radius of the first truncated cone 33 is 30 mm. The angle between the supporting inclined plate 311 and the vertical plane is α, 60°≤α≤75°, and the angle α is preferably 60° or 75°.

[0031] A plane 25 is provided at the middle of the first roller 20, and a strip hole 26 is provided at the middle of the plane 25. The number of the first roller 20 and the number of the second roller 21 are both four.

[0032] The first and second rollers are set up on the upper and lower parts of the guide instrument to constrain the upper and lower guides of the steel and prevent the steel from tilting. Adjustable brackets are set at the four corners of the guide instrument. According to the level ruler, the height of the four corners is adjusted to ensure that the guide frame remains horizontal, the upper and lower rollers remain perpendicular to the vertical axis, and the steel remains vertical along the roller direction.

[0033] The SMW pile driver drill rod is lifted and lowered to rotate and spray cement slurry to form a continuous overlapping cement-soil mixing pile wall; after the cement pile wall is formed, the crawler crane is needed to lift the H700 steel and insert it into the cement-soil pile. According to the different retaining soil pressures, some places are designed to be densely inserted, and some places are designed to be inserted one at a time. When inserting, if there is no guide, the steel will be uneven and the verticality will not meet the design requirements and occupy the main body size; a steel guide instrument is set to observe the horizontal ruler of the guide instrument by rotating the adjustable support seat of the support leg to ensure that the guide instrument is level; when inserting the steel, it is guided along the upper and lower rollers of the guide instrument to ensure that the verticality of the steel meets the requirements; the guide instrument can insert multiple steel sections horizontally, and after completion, it can be moved longitudinally along the direction of the pile wall to use the side wall of the inserted steel section as a guide to ensure the overall linearity of the steel section.

[0034] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A pile type steel guide instrument, characterized in that: The invention comprises a support member, wherein the four corners of the bottom end of the support member can be adjusted to connect to the support member, a plurality of bearing assemblies (30) are arranged on the inner wall of the support member in the length direction, the bearing assembly (30) comprises a nylon roller bearing (40), the support member is provided with a first roller (20) and a second roller (21) arranged in parallel, the second roller (21) is arranged at both ends of the support member, the first roller (20) is arranged at the middle position of the second roller (21), nylon roller ear plates (31) are arranged at both ends of the nylon roller bearing (40), the support member is provided with a first transverse axis (18), and the first transverse axis (18) is fixedly connected to the nylon roller ear plate (31).

2. The pile-type steel guide instrument according to claim 1, characterized in that: The support component comprises a second transverse axis (15) and a vertical axis (16), and the first transverse axis (18), the second transverse axis (15) and the vertical axis (16) are respectively vertically fixedly connected.

3. The pile-type steel guide instrument according to claim 2, characterized in that: The support leg component comprises an adjustable support leg body (10), a slotted nut (11) is screwed onto the support leg body (10), the second transverse axis (15) is provided with a connecting hole (151), the support leg body (10) is arranged through the connecting hole (151), and the slotted nut (11) abuts against the second transverse axis (15).

4. The pile-type steel guide instrument according to claim 1, characterized in that: The nylon rolling ear plate (31) comprises a supporting inclined plate (311), a vertical first truncated cone (33) is provided at the top end of the supporting inclined plate (311), a second truncated cone (32) is provided at the side wall of the first truncated cone (33), and a through hole (35) is provided at the center position of the first truncated cone (33).

5. The pile-type steel guide instrument according to claim 4, characterized in that: The included angle between the supporting inclined plate (311) and the vertical plane is α, 60°≤α≤75°.

6. The pile-type steel guide instrument according to claim 4, characterized in that: A rotating shaft (41) is inserted into the center of the nylon rolling bearing (40), and the rotating shaft (41) is inserted and locked with the through hole (35).

7. The pile-type steel guide instrument according to claim 2, characterized in that: The second roller (21) is provided with a threaded end (211) at each of the two ends, and the threaded end (211) is screwed with a shoulder fastener (22).

8. The pile-type steel guide instrument according to claim 7, characterized in that: The second transverse axis (15) is provided with a row of threaded holes (152), and the threaded ends (211) are fixedly connected to the threaded holes (152) and are locked by the shoulder fasteners (22).

9. The pile-type steel guide instrument according to claim 1, characterized in that: A plane (25) is provided at the middle position of the first supporting roller (20), and a strip hole (26) is provided at the middle position of the plane (25).

10. The pile-type steel guide instrument according to claim 9, characterized in that: The number of the first rollers (20) and the number of the second rollers (21) are both four.

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