Auxiliary device for mounting prefabricated supporting section of manual hole digging pile

Abstract

The utility model provides a manual hole digging pile prefabricated supporting section installation auxiliary device which comprises a supporting frame and an opposite jacking type jack horizontally arranged on the supporting frame, and the supporting frame comprises a supporting platform and a lifting support arranged in the middle of the lower portion of the supporting platform. The opposite jacking type jack comprises two jacking rods which are jacked out in opposite directions, and the opposite jacking type jack is detachably fixed on the supporting platform; the lifting support is placed at the bottom of a pile hole, and the opposite jacking type jack tightly jacks the two opposite supporting sections to be installed on the inner wall of the pile hole. The supporting joint can be automatically jacked, time and labor are saved, the height is adjustable, and jacking at different jacking points is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial dug pile construction, and more specifically, to an auxiliary device for installing prefabricated support sections of artificial dug piles. Background Art

[0002] With the rapid development of the technical level and construction equipment of the construction industry in China, more and more infrastructure construction projects are located in remote areas. The construction environment and geological conditions are complex, and large equipment cannot reach the site during the construction of the foundation piles. Therefore, artificial dug cast-in-place piles have become the only choice. For the support of the inner wall of the pile hole of artificial dug piles, some adopt the cast-in-place method for construction, and some adopt several prefabricated support sections installed on the inner wall of the pile hole to form a support cylinder for support. However, for the support sections to be tightly connected to the inner wall of the pile hole, the operators hold tools to manually press a large number of cement support sections, which is time-consuming and laborious, with low construction efficiency and insecure support. Summary of the Utility Model

[0003] In view of the above problems, the purpose of the utility model is to provide an auxiliary device for installing prefabricated support sections of artificial dug piles, which can automatically tighten the support sections, saving time and labor, with adjustable height and being convenient for tightening at different tightening points.

[0004] An auxiliary device for installing prefabricated support sections of artificial dug piles provided by the utility model includes a support frame and an opposed jack horizontally arranged on the support frame, wherein,

[0005] The support frame includes a support platform and a lifting support arranged in the middle of the lower part of the support platform;

[0006] The opposed jack includes two ejector rods ejecting in opposite directions, and the opposed jack is detachably fixed on the support platform;

[0007] The lifting support is placed at the bottom of the pile hole, and the opposed jack tightly presses two opposite support sections to be installed on the inner wall of the pile hole respectively.

[0008] The lifting support includes a hydraulic lifting column, the telescopic end of the hydraulic lifting column is connected to the middle of the lower part of the support platform, and a circumferential inclined support rod is arranged at the lower end of the oil cylinder of the hydraulic lifting column, and the inclined support rod supports on the bottom of the pile hole.

[0009] The inclined support rod includes a screw rod and a sleeve with internal threads that are screwed together, and the four sleeves are evenly welded on the lower end of the oil cylinder in a circumferential manner.

[0010] The opposed jack includes two hydraulic jack rods. The rear ends of the hydraulic cylinders of the two hydraulic jack rods are arranged oppositely. The jack rods of the two hydraulic jack rods are on the same straight line. The hydraulic cylinder is detachably fixed to the support platform. An arc-shaped jacking block is arranged at the end of the jack rod.

[0011] On one side of the hydraulic cylinder close to the support platform, a mounting plate is arranged. The width of the mounting plate is greater than the width of the hydraulic cylinder. At least two through holes are arranged at both edges of the mounting plate. Corresponding screw holes are arranged on the support platform. The mounting plate is connected to the support platform through bolts.

[0012] The support platform includes a rectangular steel plate. The length of the steel plate is not less than twice the length of the hydraulic cylinder. The width of the steel plate is not less than the width of the hydraulic cylinder. The symmetry line of the two hydraulic cylinders is located on the center line of the steel plate.

[0013] A reinforcing plate is arranged between the upper end of the lifting bracket and the lower side of the steel plate.

[0014] A ceiling bracket is arranged above the support platform. A ceiling is arranged on the upper part of the ceiling bracket. The area of the ceiling is smaller than the cross-sectional area of the support cylinder formed by the support section. A lifting ring is arranged on the upper part of the ceiling.

[0015] Two auxiliary support insertion pipes are arranged on the lower side of the support platform. The auxiliary support insertion pipes are respectively located on both sides of the lifting bracket. Auxiliary support rods are inserted into the auxiliary support insertion pipes.

[0016] The lifting stroke of the lifting bracket is not less than half of the height of the support section.

[0017] As can be seen from the above description, the installation auxiliary device for precast support sections of manually dug piles provided by the present invention includes a liftable support frame and an opposed jack supported on the support frame. The support frame can lift the opposed jack to any height position of the support section. The opposed jack can tightly hold and install two opposite support sections. The present invention can realize the automatic tight installation of the precast support sections, saving manpower and installation time, and the installation is firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to the content of the following specification in conjunction with the drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become clearer and easier to understand. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an installation auxiliary device for precast support sections of manually dug piles according to an embodiment of the present invention;

[0020] Figure 2 Structural schematic diagram of a support frame according to an embodiment of the present utility model;

[0021] Figure 3 Top view of a support platform according to an embodiment of the present utility model;

[0022] Figure 4 Top view of an opposed jack according to an embodiment of the present utility model;

[0023] Wherein, 1 - support frame, 11 - support platform, 111 - screw hole, 12 - lifting bracket, 121 - hydraulic lifting column, 122 - telescopic end, 123 - oil cylinder, 13 - inclined support rod, 131 - screw rod, 132 - sleeve;

[0024] 2 - opposed jack, 21 - hydraulic ejector rod, 211 - hydraulic cylinder, 212 - ejector rod, 22 - mounting plate, 23 - through hole, 24 - bolt, 25 - top block;

[0025] 3 - reinforcing plate, 4 - ceiling bracket, 5 - ceiling, 6 - lifting ring, 7 - auxiliary support insertion tube, 8 - auxiliary support rod, 9 - support section;

[0026] In all the drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed implementation manners

[0027] The present utility model can be subjected to various modifications and can have various embodiments. Specific embodiments are illustrated in the drawings and described. However, the present utility model is not limited to the specific implementation manners, and it should be understood that all modifications, equivalents, and substitutes falling within the spirit and technical scope of the present utility model are included.

[0028] Ordinal terms such as first, second, etc. can be used to describe various components, but the components are not limited to the terms. The terms are only used to distinguish one component from another. For example, without departing from the scope of the claims of the present utility model, the second component can be named the first component, and similarly, the first component can also be named the second component. The term "and / or" includes a combination of multiple related recited items or one of multiple related recited items.

[0029] It should be understood that when it is mentioned that a certain component is "connected" or "contacted" with other components, this not only includes the case of directly connecting or contacting with other components, but also should be understood to include the case where there are other components in between. Conversely, when it is mentioned that a certain component is "directly connected" or "directly contacted" with other components, it should be understood that there are no other components in between.

[0030] In the description of the embodiments, when it is described that a certain component is formed "on or under" another component, "on or under" includes both cases where the two components are in direct contact with each other and cases where at least one other component is disposed between the two components. Also, when expressed as "on or under", based on a certain component, it refers not only to the upper side direction but also may include the lower side direction.

[0031] The terms used in this application are only used to describe specific embodiments and do not limit the present utility model. Unless otherwise clearly specified in the context, the singular expression includes the plural expression. In this application, it should be understood that terms such as "including" or "having" are used to specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof in advance.

[0032] Unless otherwise defined, including technical terms or scientific terms, all terms used herein have the same meaning as generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning in the context of the related technology. If not clearly defined in this application, they cannot be interpreted as ideal or overly formal meanings.

[0033] Glossary:

[0034] Manual dug pile, an engineering term, is a pile formed by the method of manual excavation to form a hole, then placing a steel reinforcement cage and pouring concrete. For each section of the pile hole dug, an inner wall casing needs to be set, and the construction is carried out in a cyclic manner downward section by section. Manual dug piles generally have a relatively thick diameter, and the thinnest is also more than 800 millimeters. They can bear a structural main body with fewer floors and greater pressure and are widely used. A bearing platform is set on the top of the pile, and then connected and tied together with a bearing platform beam to make the forces of each pile evenly distributed to support the entire building.

[0035] Hereinafter, specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

[0036] As Figures 1-4 As commonly shown, the installation auxiliary device for precast support sections of manual dug piles proposed in this embodiment can be used for the tight installation of precast support sections on the inner wall of the pile holes of manual dug piles, and can also be used for the tight installation of temporary support sections of other pile wells.

[0037] The prefabricated support section is an arc-shaped support section processed in advance externally. A group of support sections are sequentially connected to form a cylindrical support cylinder, which is used to be installed in the pile hole completed by each section of manual dug pile, support the inner wall of the pile hole, and prevent the soil body on the inner wall from collapsing. After a section of pile hole is excavated, the support section should be installed in time, and then the next section of pile hole should be excavated downward. A group of support sections can include 2 or 4 support sections. The installation auxiliary device for the prefabricated support section of the manual dug pile can quickly and easily tighten and install two opposite support sections.

[0038] The installation auxiliary device for the prefabricated support section of the manual dug pile includes a support frame 1 and an opposed jack 2 horizontally arranged on the support frame 1. The support frame 1 is used to support the opposed jack 2, so that the opposed jack 2 reaches the position height to be tightened. The opposed jack 2 extends the jack rods in opposite directions, and the horizontal jack rods are used to tighten two opposite support sections 9 in a group.

[0039] In order to be able to tighten multiple height positions of the support section 9 and install the support section 9 more firmly, the support frame 1 includes a support platform 11 and a lifting bracket 12 arranged in the middle below the support platform 11. The support platform 11 stably supports the opposed jack 2, and the lifting bracket 12 drives the support platform 11 to move up and down, thereby driving the opposed jack 2 to move up and down to a suitable position.

[0040] The opposed jack 2 includes two jack rods that eject in opposite directions and can be simultaneously tightened in opposite directions. Two opposite forces can simultaneously tighten two opposite support sections 9, and the tightening is more stable, powerful and fast. In order to facilitate the replacement of jacks of different specifications and be applicable to the support of pile holes with different diameters, the opposed jack 2 is detachably fixed on the support platform 11.

[0041] During use, the lifting bracket 12 is placed at the bottom of the pile hole, the height is adjusted, the support section 9 to be installed is hoisted into the pile hole, and the opposed jack 2 tightens the two opposite support sections 9 on the inner wall of the pile hole respectively.

[0042] The whole device can be hoisted into the pile hole. The operator can stand at the bottom of the pile hole to place the lifting bracket 12 stably. The operator only needs to stand on the side of the device to observe and operate the operation switches of the lifting bracket 12 and the opposed jack 2 to complete the tightening work, which is easy and labor-saving, and effectively shortens the time for the operator to stay in the pile hole.

[0043] In a specific embodiment of the present utility model, in order to make the operation of the lifting bracket 12 convenient and easy to adjust to any height, the lifting bracket 12 includes a hydraulic lifting column 121, and the telescopic end 122 of the hydraulic lifting column 121 is connected to the middle below the support platform 11.

[0044] In order to stably place the hydraulic lifting column 121 at the bottom of the pile hole, a circumferential inclined support rod 13 is provided at the lower end of the oil cylinder 123 of the hydraulic lifting column 121. The inclined support rod 13 inclines towards the outside of the hydraulic lifting column 121, and the inclined support rod 13 supports on the bottom of the pile hole. The inclined support rod 13 is rod-shaped and can grip the rock and soil at the bottom of the pile hole to stably support the hydraulic lifting column 121.

[0045] Since the bottom of the pile hole is uneven, in order to place the support platform 11 horizontally, in a specific embodiment of the present invention, the inclined support rod 13 includes a screw rod 131 and a sleeve 132 with internal threads that are rotatably connected to each other. Four sleeves 132 are uniformly welded to the lower end of the oil cylinder 123 in a circumferential manner. By adjusting the connection length of each screw rod 131 and the sleeve 132, the support platform 11 is made horizontal, so that the opposing jack 2 is horizontal, and can more symmetrically and powerfully press against the two support sections 9.

[0046] Select the specification of the hydraulic lifting column 121 according to the situation of the pile hole, and a multi-section electric lifting column can be selected.

[0047] In a specific embodiment of the present invention, in order to easily press against the support section 9, the opposing jack 2 includes two hydraulic jack rods 21. The rear ends of the hydraulic cylinders 211 of the two hydraulic jack rods 21 are arranged oppositely, and the jack rods 212 of the two hydraulic jack rods 21 are on the same straight line. The hydraulic cylinders 211 are detachably fixed on the support platform 11. The two hydraulic jack rods 21 are back-to-back on the same straight line, and the pressing forces are opposite and on the same straight line. When pressing against the two opposing support sections 9, the extension of the two hydraulic jack rods 21 can be synchronously controlled, or each hydraulic jack rod 21 can be controlled separately, and the pressing force and the extension length of the jack rod 212 can be flexibly controlled. An arc-shaped top block 25 can be provided at the end of the jack rod 212 to make smooth contact with the arc-shaped inner wall of the support section 9.

[0048] The hydraulic cylinder 211 is detachably fixed on the support platform 11, which is convenient for replacing hydraulic jack rods of different specifications. The midpoint of the opposing jack 2 should be approximately placed at the center of the pile hole.

[0049] In a specific embodiment of the present invention, the detachable fixing method of the opposing jack 2 can be that an installation plate 22 is provided on the side of the hydraulic cylinder 211 close to the support platform 11. The width of the installation plate 22 is greater than the width of the hydraulic cylinder 211. At least two through holes 23 are provided at both edges of the installation plate 22, and screw holes 111 corresponding to the through holes 23 are provided on the support platform 11. The installation plate 22 is connected to the support platform 11 through bolts 24 passing through the through holes and the screw holes.

[0050] The center line of the mounting plate 22 is aligned with that of the hydraulic cylinder 211. On both sides of the hydraulic cylinder 211, the mounting plate 22 has a row of through holes 23. The two rows of through holes 23 can stably mount the hydraulic ejector rod 21 on the support platform 11 without deviation during the jacking process.

[0051] In a specific embodiment of the present utility model, the area of the support platform 11 is capable of supporting the opposed jack 2. The support platform 11 may include a rectangular steel plate. The length of the steel plate is not less than twice the length of the hydraulic cylinder 211 of the hydraulic ejector rod 21, and the width of the steel plate is not less than the width of the hydraulic cylinder 211. The symmetry line of the hydraulic cylinder 211 is located on the center line of the steel plate.

[0052] The hydraulic lifting column 121 is arranged at the center below the steel plate to support the steel plate. The steel plate supports the hydraulic cylinders 211 of the two hydraulic ejector rods 21, and the hydraulic ejector rods 21 extend or retract on the steel plate.

[0053] In a specific embodiment of the present utility model, in order to stably and balancedly connect the support platform 11 and the lifting bracket 12, a reinforcing plate 3 is provided between the upper end of the lifting bracket 12 and the lower side of the steel plate. A plurality of reinforcing plates 3 are evenly arranged around the connection between the lower side of the steel plate and the upper end of the ejector rod 212 to ensure the firm and stable connection between the steel plate and the ejector rod 212.

[0054] In a specific embodiment of the present utility model, for the safety of the operators, a ceiling bracket 4 is provided above the support platform 11, and a ceiling 5 is provided on the upper part of the ceiling bracket 4. The area of the ceiling 5 is slightly smaller than the cross-sectional area of the support cylinder formed by the support section 9. A lifting ring 6 is provided on the upper part of the ceiling 5.

[0055] The entire device is hoisted into the pile hole through the lifting ring 6. The area of the ceiling 5 is convenient for entering the support cylinder. The ceiling 5 can prevent the gravel or sundries above from falling into the pile hole under construction, avoiding harm to the operators and equipment.

[0056] In a specific embodiment of the present utility model, in order to further prevent the support platform 11 from tilting during the jacking process, two auxiliary support insertion pipes 7 are provided on the lower side of the support platform 11. The auxiliary support insertion pipes 7 are respectively located on both sides of the lifting bracket 12, and auxiliary support rods 8 are inserted into the auxiliary support insertion pipes 7. The auxiliary support insertion pipes 7 can be inclined outward. After inserting the auxiliary support rods 8, the two auxiliary support rods 8 obliquely support the support platform 11.

[0057] The lifting bracket 12 is placed in the middle of the bottom of the pile hole. The two auxiliary support rods 8 balance and support the two ends of the support platform 11 on both sides of the lifting bracket 12, which helps to keep the opposed jack 2 absolutely horizontal and prevents it from tilting and falling during use, ensuring safe operation.

[0058] In a specific embodiment of the present utility model, the lifting stroke of the lifting bracket 12 is not less than half of the height of the support section 9, and it can be lifted within most of the height range of the support section 9. The opposed jack 2 can be tightened at multiple positions, and the tightening is more flexible and firm.

[0059] The auxiliary device for installing the precast support section of the manually dug pile according to the present utility model is described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the above-mentioned auxiliary device for installing the precast support section of the manually dug pile of the present utility model without departing from the content of the present utility model. Therefore, the protection scope of the present utility model should be determined by the content of the appended claims.

Claims

1. An auxiliary device for installing prefabricated support sections of manually dug piles, characterized in that, It includes a support frame and an opposed jack horizontally arranged on the support frame. Among them, the support frame includes a support platform and a lifting bracket arranged in the middle of the lower part of the support platform; the opposed jack includes two ejector rods ejecting in opposite directions, and the opposed jack is detachably fixed on the support platform; the lifting bracket is placed at the bottom of the pile hole, and the opposed jack tightly presses two relatively arranged supporting sections to be installed against the inner wall of the pile hole respectively.

2. The prefabricated supporting section installation auxiliary device for manually dug piles according to claim 1, characterized in that The lifting bracket includes a hydraulic lifting column. The telescopic end of the hydraulic lifting column is connected to the middle of the lower part of the support platform. A week of inclined support rods is arranged at the lower end of the oil cylinder of the hydraulic lifting column, and the inclined support rods support on the bottom of the pile hole.

3. The auxiliary device for installing prefabricated supporting sections of manually dug piles according to claim 2, wherein The inclined support rod includes a screw rod and a sleeve with internal threads that are screwed together. The four sleeves are evenly welded on the lower end of the oil cylinder in a week.

4. The auxiliary device for installing the precast support section of the manually dug pile according to claim 1, characterized in that, The opposed jack includes two hydraulic ejector rods. The rear ends of the hydraulic cylinders of the two hydraulic ejector rods are arranged relatively. The ejector rods of the two hydraulic ejector rods are on the same straight line, and the hydraulic cylinder is detachably fixed to the support platform; An arc-shaped top block is arranged at the end of the ejector rod.

5. The prefabricated support section installation auxiliary device for manually dug piles according to claim 4, characterized in that, An installation plate is arranged on one side of the hydraulic cylinder close to the support platform. The width of the installation plate is greater than the width of the hydraulic cylinder. At least two through holes are arranged at both edges of the installation plate. Screw holes corresponding to the through holes are arranged on the support platform. The installation plate is connected to the support platform by bolts passing through the through holes and the screw holes.

6. The auxiliary device for installing prefabricated supporting sections of manually dug piles according to claim 4, characterized in that, The support platform includes a rectangular steel plate. The length of the steel plate is not less than twice the length of the hydraulic cylinder, and the width of the steel plate is not less than the width of the hydraulic cylinder; The symmetry line of the two hydraulic cylinders is located on the center line of the steel plate.

7. The auxiliary device for installing prefabricated support sections of manually excavated piles according to claim 6, characterized in that A reinforcing plate is arranged between the upper end of the lifting bracket and the lower side of the steel plate.

8. The prefabricated support section installation auxiliary device for manually dug piles according to claim 1, characterized in that, A ceiling bracket is arranged above the support platform. A ceiling is arranged on the upper part of the ceiling bracket. The area of the ceiling is smaller than the cross-sectional area of the support cylinder formed by the supporting sections. A lifting ring is arranged on the upper part of the ceiling.

9. The precast support section installation auxiliary device for manually dug piles according to claim 1, characterized in that, Two auxiliary support inserting pipes are arranged on the lower side of the support platform. The auxiliary support inserting pipes are respectively located on both sides of the lifting bracket, and auxiliary support rods are inserted into the auxiliary support inserting pipes.

10. The prefabricated support section installation auxiliary device for manually dug piles according to claim 1, characterized in that, The lifting stroke of the lifting bracket is not less than half of the height of the supporting section.

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