CN210238497U

CN210238497U - Pile foundation protects a section of thick bamboo

Info

Publication number: CN210238497U
Application number: CN201921068178.4U
Authority: CN
Inventors: Fanghao Shen; 沈方灏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-03
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a pile foundation pile casing, which comprises a casing unit and an auxiliary positioning sleeve, wherein the casing unit comprises a unit sleeve with an inner diameter matched with a rotary hole and a detachable connecting structure arranged on the top end surface of the unit sleeve, the upper end surface and the lower end surface of the unit sleeve are both provided with a ring groove concentric with the unit sleeve, the outer side of the ring groove is provided with a first unthreaded hole running through the side, the connecting structure comprises a ring-shaped base, a connecting rod and a nut component, the ring-shaped base is integrally formed by punching, the upper end surface and the lower end surface of the ring-shaped base are both provided with a ring-shaped lug matched with the ring groove and a connecting end abutted against the side, the surface of the ring-shaped lug contacted with the side is provided with a second unthreaded hole communicated with the first unthreaded hole, and a third unthreaded hole and a screw hole which are communicated with each other are sequentially arranged from inside to outside in the connecting, the utility model discloses simple to operate, simple structure.

Description

Pile foundation protects a section of thick bamboo

Technical Field

The utility model relates to a construction equipment's technical field especially relates to a pile foundation protects a section of thick bamboo.

Background

When utilizing drilling machine construction stake hole in the construction field, can set up the pile casing usually, utilize the pile casing to increase downthehole well water pressure and prevent the hole that collapses, can also play keep apart surface water, protection drill way ground, spud pile hole position and drill bit guide effect. The aperture of the pile hole can be selected according to actual needs, the variability is large, the uniform specification is difficult to form, and therefore when the pile hole is provided with the pile casing, the pile casing with the large diameter is generally selected, so that material resources are saved, and material waste is avoided. According to the technical Specification for highway bridge and culvert construction (JTJ 041-2000): the inner diameter of the pile casing is preferably 200mm to 400mm larger than the diameter of the pile. Due to the fact that the inner diameter of the pile casing is large, a drill bit of the drilling machine is difficult to position, and the drill bit is difficult to find the center of the pile hole after extending into the pile casing. The drill bit of drilling machine is drilling, the reciprocal in-process of unloading soil, easily produces the drill bit off normal, if the drill bit has deviated the drill way in bored pile hole behind the casing reentrant, this drill bit can collide with the soil body around the casing inner bore mouth and cause the ground whereabouts, and then has destroyed the drill way in pile hole, and pile foundation pore-forming diameter deviation is big, and the witnessless is surveyed.

Many of the existing pile casings are integrally formed, and for rotating holes with the same inner diameter and different depths, different pile casings need to be configured, so that a great amount of waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pile foundation protects a section of thick bamboo, the internal diameter of protecting a section of thick bamboo adoption among the solution prior art is great, leads to the drill bit of drilling machine to fix a position the difficulty, and this drill bit is difficult after stretching into protecting a section of thick bamboo to be found the problem at the center in the stake hole, can help the drill bit location, avoids with the sheath striking, can increase the length of sheath according to the degree of depth in hole.

The utility model provides a technical problem adopt following technical scheme: a pile foundation pile casing comprises a pile casing unit and an auxiliary positioning sleeve, wherein the pile casing unit comprises a unit sleeve with an inner diameter matched with a rotary hole and a connecting structure detachably mounted on the top end face of the unit sleeve, annular grooves concentric with the unit sleeve are formed in the upper end face and the lower end face of the unit sleeve, a first unthreaded hole penetrating through the side is formed in the outer side of each annular groove, the connecting structure comprises an annular base, a connecting rod and a nut assembly, the annular base is integrally formed by punching, annular convex blocks matched with the annular grooves are arranged on the upper end face and the lower end face of the annular base, a connecting end abutting against the side is arranged on the outer side face of each annular convex block, a second unthreaded hole communicated with the first unthreaded hole is formed in the face of the annular convex blocks contacting with the side, a third unthreaded hole and a screw hole communicated with each other are sequentially formed from inside to outside in the connecting end, and the third unthreaded hole is communicated with the first unthreaded, the connecting rod includes the polished rod of anterior segment and the screw rod of back end, the polished rod is worn to establish and the adaptation is in unthreaded hole three unthreaded hole one with in the unthreaded hole two, the screw rod adaptation is in the screw hole, nut subassembly includes nut one and nut two, nut one with the interior lateral surface of nut two all is provided with the screw thread, nut one with nut two closes in proper order soon on the screw rod, and the screw thread of lateral surface with the screw cooperation, lower floor protect a section of thick bamboo unit and pass through connection structure and upper strata protect a detachable connection of section of thick bamboo unit, auxiliary positioning cover includes the position sleeve main part of hole and the drill bit adaptation of drilling machine and sets up the overlap joint structure at position sleeve main part lateral surface, the overlap joint structure overlap joint is in annular lug with between the link, and support in on the annular lug.

Furthermore, interference structures formed by connecting sharp teeth with inclined planes on one side and right-angle planes on the other side are arranged on the end faces, abutted against the first nut and the second nut, of the first nut, the interference structures on the first nut and the second nut are mutually matched, and the interference structures mutually interfere when the first nut or the second nut is rotated away from the screw rod.

Preferably, the side surfaces of the unit sleeves are uniformly provided with hanging rings.

Utility model's effect:

the length of the utility model can be assembled according to the needs, that is, the protective cylinder unit can be added at any time according to the needs of the depth of the rotary hole, because the unit sleeves which are arranged up and down are fixedly connected through the connecting structure which is clamped with the ring groove on the end surface of the unit sleeve, the connecting rod is directly inserted into the unthreaded hole III, the unthreaded hole I and the unthreaded hole II, the installation and the withdrawal are very convenient, after a long time, if the screw rod is used for connection, the screw rod is probably caused to generate micro deformation, so that the screw rod can not be withdrawn, the utility model selects the polished rod which allows the micro deformation, the installation is convenient, the smooth withdrawal is ensured, the designed nut component can be firmly positioned and connected, compared with the prior two nut components, the interference structure is arranged between the nut components, so that the transmission between two nuts can be realized, that is, if one of the nuts vibrates in a long time and tends to be separated from the screw, the other nut can prevent the nut from separating from the screw.

Because the internal diameter of the original casing unit is larger than that of the drill bit, the error in the circle center of the casing unit and the drill hole is large and difficult to determine, the internal diameter is greatly reduced by the aid of the specially designed auxiliary positioning sleeve, and the circle center of the auxiliary positioning sleeve is concentric with the casing unit, namely concentric with the drill hole, so that the accuracy and the efficiency in the process of determining the circle center are realized.

Drawings

Fig. 1 is a sectional view of the present invention;

FIG. 2 is a sectional view of the casing unit of the present invention;

fig. 3 is a sectional view of the auxiliary positioning sleeve of the present invention.

FIG. 4 is an enlarged view of the position A of the present invention;

FIG. 5 is a sectional view of the connection structure of the present invention;

fig. 6 is a schematic top view of the nut assembly of the present invention.

Wherein: the device comprises a protective cylinder unit-1, an auxiliary positioning sleeve-2, a unit sleeve-3, a connecting structure-4, an annular groove-5, a unthreaded hole I-6, an annular base-7, a connecting rod-8, a nut component-9, the outer side of the annular groove-50, an annular bump-70, a connecting end-71, a unthreaded hole II-72, a unthreaded hole III-73, a screw hole-74, a nut I-90, a nut II-91, a sharp tooth-92, an interference structure-93, a positioning sleeve main body-20, an overlapping structure-21, a lifting ring-30, a polished rod-80 and a screw rod-81.

Detailed Description

The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.

Referring to the attached drawings, a pile foundation casing comprises a casing unit 1 and an auxiliary positioning sleeve 2, the casing unit 1 comprises a unit sleeve 3 with the inner diameter matched with a rotary hole and a connecting structure 4 detachably installed on the top end face of the unit sleeve 3, annular grooves 5 concentric with the unit sleeve 3 are formed in the upper end face and the lower end face of the unit sleeve 3, a unthreaded hole I6 penetrating through the side 50 is formed in the outer side 50 of each annular groove 5, the connecting structure 4 comprises an annular base 7, a connecting rod 8 and a nut assembly 9, the annular base 7 is integrally formed by stamping, annular convex blocks 70 matched with the annular grooves 5 are arranged on the upper end face and the lower end face of the annular base 7, a connecting end 71 abutted against the side 50 is arranged on the outer side face, unthreaded hole II 72 communicated with the unthreaded hole I6 is formed in the face, contacted with the side 50, unthreaded hole III 73 and a threaded hole 74 communicated with each other are sequentially formed in the connecting end 71 from inside to outside, the three unthreaded holes 73 are communicated with the first unthreaded hole 6, the connecting rod 8 comprises a polished rod 80 at the front section and a screw rod 81 at the rear section, the polished rod 80 penetrates through the three unthreaded holes 73, the first unthreaded holes 6 and the second unthreaded holes 72, the screw rod 81 is matched in the screw hole 74, the nut assembly 9 comprises a first nut 90 and a second nut 91, the inner side and the outer side of the first nut 90 and the second nut 91 are both provided with threads, the first nut 90 and the second nut 91 are sequentially screwed on the screw rod 81, the threads on the outer side are matched with the screw hole 74, the lower-layer casing unit 1 is detachably connected with the upper-layer casing unit 1 through a connecting structure 4, the auxiliary positioning sleeve 2 comprises a positioning sleeve main body 20 with an inner hole matched with a drill bit of a drilling machine and an overlapping structure 21 arranged on the outer side of the positioning sleeve main body 20, and the overlapping structure 21 is overlapped between the annular convex block 70 and the connecting end 71.

Interference structures 93 formed by connecting pointed teeth 92 with inclined surfaces and right-angle surfaces end to end are arranged on the abutting end surfaces of the first nut 90 and the second nut 91, the interference structures 93 on the first nut 90 and the second nut 91 are matched with each other, and when the first nut 90 and the second nut 91 are rotated away from the screw 81, the interference structures 93 are interfered with each other.

Hanging rings 30 are evenly distributed on the side surface of the unit sleeve 3.

The working principle is as follows:

according to the needs of the hole depth of commentaries on classics, can install at any time and protect a section of thick bamboo unit 1 additional, because link firmly through connection structure 4 between the unit cover 3 that sets up from top to bottom, connection structure 4 and the 5 joints of ring channel of 3 terminal surfaces of unit cover, connecting rod 8 disect insertion unthreaded hole three 93, unthreaded hole 6 and with in unthreaded hole two 92, no matter the installation with withdraw from all very convenient, the positioning connection pole 8 that the nut component 9 of design can be firm, two nut components in the past compare, the utility model discloses a be provided with between the nut component 9 and interfere structure 93 to can transmit between two nuts, that is to say, if one of them nut is because long-term, take place vibrations, when having the trend that breaks away from the screw rod, another nut can prevent its action that takes place to break away from screw rod 81.

Because original protecting a section of thick bamboo unit 1 internal diameter is greater than the drill bit, is confirming that the centre of a circle error of protecting a section of thick bamboo unit 1 and drilling is big, is difficult to confirm, and the internal diameter is reduced greatly to the assistance-localization real-time cover 2 of special design, and the centre of a circle of assistance-localization real-time cover 2 is concentric with protecting a section of thick bamboo unit 1, promptly with the drilling concentric, accurate when confirming the centre of a circle, high-efficient.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pile foundation pile casing is characterized by comprising a pile casing unit and an auxiliary positioning sleeve, wherein the pile casing unit comprises a unit sleeve with an inner diameter matched with a rotary hole and a connecting structure detachably mounted on the top end face of the unit sleeve, annular grooves concentric with the unit sleeve are formed in the upper end face and the lower end face of the unit sleeve, a first unthreaded hole penetrating through the side is formed in the outer side of each annular groove, the connecting structure comprises an annular base, a connecting rod and a nut assembly, the annular base is integrally formed by punching, annular convex blocks matched with the annular grooves are arranged on the upper end face and the lower end face of the annular base, a connecting end abutting against the side is arranged on the outer side face of each annular convex block, a second unthreaded hole communicated with the first unthreaded hole is formed in the face where the annular convex blocks are contacted with the side, and a third unthreaded hole and a screw hole which are communicated with each other are sequentially formed from inside to outside in the, the unthreaded hole III is communicated with the unthreaded hole I, the connecting rod comprises a polished rod at the front section and a screw rod at the rear section, the polish rod is arranged in the third unthreaded hole, the first unthreaded hole and the second unthreaded hole in a penetrating way, the screw rod is matched in the screw hole, the nut component comprises a first nut and a second nut, the inner and outer side surfaces of the first nut and the second nut are both provided with threads, the first nut and the second nut are screwed on the screw rod in turn, the thread of the outer side surface is matched with the screw hole, the lower layer of the casing unit is detachably connected with the upper layer of the casing unit through the connecting structure, the auxiliary positioning sleeve comprises a positioning sleeve main body with an inner hole matched with a drill bit of a drilling machine and a lap joint structure arranged on the outer side surface of the positioning sleeve main body, the lapping structure is lapped between the annular convex block and the connecting end and is supported on the annular convex block.

2. The pile foundation casing of claim 1, wherein the abutting end surfaces of the first nut and the second nut are provided with interference structures formed by end-to-end connection of sharp teeth with inclined surfaces on one side and right-angle surfaces on the other side, the interference structures on the first nut and the second nut are matched with each other, and when the first nut or the second nut is rotated away from the screw rod, the interference structures are mutually interfered.

3. The pile casing of claim 1, wherein lifting rings are evenly distributed on the sides of the unit sleeves.