Steel pipe pile pressing device
By installing a pile driver with vibrating fixture and positioning mechanism on the excavator, the problem of weak connection between steel pipe piles and mixing piles and difficulty in controlling the verticality of the steel pipe piles is solved, and efficient improvement of the downpressure and support system strength of the steel pipe piles is achieved.
Patent Information
- Application Number
- CN202421093099.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In foundation pit construction, conventional mechanical hole formation and steel pipe pile insertion methods are inefficient in construction, and it is difficult to ensure the close connection between steel pipe piles and mixing piles, resulting in weak support system strength and difficult for existing equipment to mix piles in mixing piles Perform vertical downward pressure before final setting.
A steel pipe pile down pressure device is designed, including a pile driver that can be installed on an excavator, equipped with a vibration fixture and a positioning mechanism, and the steel pipe pile down pressure is used to ensure the verticality of the steel pipe piles through a positioning mechanism.
The close connection between steel pipe piles and mixing piles is improved, the vertical downward pressure of steel pipe piles is ensured, the construction efficiency and the strength of the support system are improved, and the steel pipe piles of different sizes are adapted to steel pipe piles.
Smart Images
Figure CN222275475U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of foundation pit construction, and more specifically relates to a steel pipe pile pressing device. Background Art
[0002] In foundation pit support projects, steel pipe piles are usually added to mixing piles to enhance support strength. Conventional construction conditions are mechanical drilling, inserting steel pipes, and grouting. This method has low construction efficiency, and because mechanical secondary drilling will disturb the mixing pile soil, resulting in weak points in the strength of the support system.
[0003] Therefore, using a downward pressing device to insert the steel pipe before the final setting of the mixing pile can ensure a close connection between the steel pipe and the mixing pile, forming an overall structure and thus achieving better results. However, it is difficult to find suitable equipment to press down the steel pipe pile at the construction site. If an excavator is used to assist in inserting the steel pipe, it is difficult for the excavator to ensure the verticality of the steel pipe pile. If a pile hammer is used for pounding construction, it is necessary to construct on a relatively hard site and it is impossible to pound the mixing pile before the final setting. Utility Model Content
[0004] The main purpose of the utility model is to provide a steel pipe pile pressing device, which is designed to be installed on an excavator and use a vibration clamp to cooperate with the steel pipe pile to complete the work of pressing the steel pipe pile.
[0005] According to a first aspect of the utility model, a steel pipe pile pressing device is provided, comprising a pile driver that can be installed on an excavator, the pile driver is provided with a clamping mouth, and the clamping mouth clamps a vibration clamp;
[0006] The vibration clamp includes a clamping part, a limit plate and a positioning cylinder that are connected in sequence. The clamping part is clamped by the clamping nozzle, and the end of the positioning cylinder away from the limit plate is an open end. The positioning cylinder is used to be sleeved on the top of the steel pipe pile, and a positioning mechanism for positioning the steel pipe pile is provided on the side wall of the positioning cylinder.
[0007] In the above-mentioned steel pipe pile pressing device, there are two positioning mechanisms which are symmetrically arranged along the axis of the positioning cylinder.
[0008] In the above-mentioned steel pipe pile pressing device, there are three positioning mechanisms and they are evenly distributed around the axial circumference of the positioning cylinder.
[0009] In the above-mentioned steel pipe pile pressing device, the positioning mechanism includes an inclined swing rod and a horizontally arranged push rod, the swing rod is hinged to the side wall of the positioning cylinder, the swing rod is partially located inside the positioning cylinder, the push rod is horizontally slidably connected to the side wall of the positioning cylinder and can move to the inside of the positioning cylinder, the part of the swing rod outside the positioning cylinder is movably connected to an end of the push rod away from the positioning cylinder, and the part of the swing rod inside the positioning cylinder is above the push rod;
[0010] When the positioning cylinder is sleeved onto the steel pipe pile, the steel pipe pile pushes the swing rod to swing, so that the push rod is pressed tightly onto the steel pipe pile.
[0011] In the above-mentioned steel pipe pile pressing device, a waist-shaped hole is provided on the swing rod, and a pin shaft matching with the waist-shaped hole is provided on the push rod.
[0012] In the above-mentioned steel pipe pile pressing device, the part of the swing rod located inside the positioning cylinder is wrapped with a first elastic layer, and the end of the push rod away from the swing rod is wrapped with a second elastic layer.
[0013] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:
[0014] In the utility model, vibration is generated by a pile driver, a vibration clamp is provided on the pile driver, a positioning cylinder of the vibration clamp is sleeved on the steel pipe pile, the pile driver can be installed on an excavator, the excavator can drive the pile driver to press down, thereby pressing the vibration clamp down, so that the steel pipe pile can be gradually inserted into the mixing pile before final setting; it is difficult to control the verticality within the limit by adjusting with the excavator, so a positioning mechanism is provided on the positioning cylinder, the bottom of the steel pipe pile is positioned according to the coordinates, and after the positioning mechanism clamps and positions the end of the steel pipe pile, the operator can directly swing the vibration clamp according to the data deviation to press the steel pipe pile vertically downward to ensure the verticality of the steel pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;
[0017] Figure 2 It is a structural schematic diagram of a vibration clamp of the first embodiment of the utility model;
[0018] Figure 3 is a cross-sectional view of a vibration clamp according to a first embodiment of the utility model;
[0019] Figure 4 It is a schematic diagram of the first embodiment of the utility model being sleeved on a steel pipe pile.
[0020] Among them, the reference numerals of each figure are:
[0021] 1. Pile driver; 11. Clamping nozzle; 2. Vibrating clamp; 21. Clamping part; 22. Limiting plate; 23. Positioning cylinder; 3. Positioning mechanism; 31. Swinging rod; 311. Waist-shaped hole; 32. Push rod; 321. Pin shaft. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.
[0024] Reference Figures 1 to 4 As shown, in one embodiment of the utility model, a steel pipe pile pressing device includes a pile driver 1 that can be installed on an excavator. The specific structure of the pile driver 1 can refer to patent CN206844113U, and this application will not be repeated here;
[0025] The pile driver 1 is provided with a clamping mouth 11, and the clamping mouth 11 clamps a vibrating clamp 2;
[0026] The vibration clamp 2 includes a clamping portion 21, a limiting plate 22 and a positioning cylinder 23 which are connected in sequence. The clamping portion 21 is clamped by the clamping nozzle 11. The end of the positioning cylinder 23 away from the limiting plate 22 is an open end. The positioning cylinder 23 is used to be sleeved on the top of the steel pipe pile. A positioning mechanism 3 is provided on the side wall of the positioning cylinder 23.
[0027] The pile driver 1 is used to generate vibration, and the positioning cylinder 23 of the vibration fixture 2 will be sleeved on the steel pipe pile. The pile driver 1 can be installed on an excavator, and the excavator can drive the pile driver 1 to press down, thereby pressing the vibration fixture 2 down, so that the steel pipe pile can be gradually inserted into the mixing pile before final setting; it is difficult to control the verticality within the limit by adjusting the excavator, so a positioning mechanism 3 is provided on the positioning cylinder 23, and the bottom of the steel pipe pile is positioned according to the coordinates. After the positioning mechanism 3 clamps and positions the end of the steel pipe pile, the operator can directly swing the vibration fixture 2 according to the data deviation to press the steel pipe pile vertically downward to ensure the verticality of the steel pipe pile.
[0028] In this embodiment, there are two positioning mechanisms 3 and they are symmetrically arranged along the axis of the positioning cylinder 23; the positioning mechanism 3 includes an inclined swing rod 31 and a horizontally arranged push rod 32, the swing rod 31 is hinged to the side wall of the positioning cylinder 23, a part of the swing rod 31 is located inside the positioning cylinder 23, the push rod 32 is horizontally slidably connected to the side wall of the positioning cylinder 23 and can move to the inside of the positioning cylinder 23, the part of the swing rod 31 outside the positioning cylinder 23 is movably connected to one end of the push rod 32 away from the positioning cylinder 23, and the part of the swing rod 31 located inside the positioning cylinder 23 is above the push rod 32;
[0029] When the positioning cylinder 23 is sleeved onto the steel pipe pile, the steel pipe pile pushes the swing rod 31 to swing, so that the push rod 32 moves toward the inside of the positioning cylinder 23, and the push rod 32 can be pressed against the steel pipe pile. The push rods 32 of the two positioning mechanisms 3 can be used to locate the position of the steel pipe pile. During the construction process, the steel pipe pile will not easily shake or tilt, thereby ensuring the verticality of the steel pipe pile.
[0030] After the steel pipe pile is pressed down, as the vibration fixture 2 is lifted, the swing rod 31 is separated from the steel pipe pile, and the swing rod 31 droops under the action of its own gravity, so that the push rod 32 moves in a direction away from the positioning cylinder 23, making it easier for the vibration fixture 2 to leave the steel pipe pile.
[0031] Specifically, a waist-shaped hole 311 is provided on the swing rod 31, and a pin shaft 321 matching with the waist-shaped hole 311 is provided on the push rod 32; when the swing rod 31 swings, it drives the waist-shaped hole 311 to move, and the waist-shaped hole 311 drives the pin shaft 321 to move, thereby allowing the push rod 32 to move.
[0032] In this embodiment, the portion of the swing rod 31 located inside the positioning cylinder 23 is wrapped with a first elastic layer, and the end of the push rod 32 away from the swing rod 31 is wrapped with a second elastic layer;
[0033] When the steel pipe pile is pressed onto the swing rod 31, the first elastic layer can make up for the gap between the swing rod 31 and the steel pipe pile due to the size error, and facilitate the subsequent separation of the swing rod 31 from the steel pipe pile; the second elastic layer facilitates the push rod 32 to press the steel pipe pile.
[0034] In this embodiment, based on the positioning mechanism 3, steel pipe piles of more sizes can be adapted, and by clamping the push rod 32, steel pipe piles of smaller sizes can be fixed in the positioning cylinder 23 to maintain a certain posture.
[0035] In this embodiment, a hollow portion is provided on the side wall of the positioning cylinder 23 for the swing rod 31 and the push rod 32 to pass through, a protrusion is provided at the bottom of the hollow portion, and a strip groove is provided on the push rod 32 to cooperate with the protrusion, so that the push rod 32 can slide horizontally, and a nut can be provided on the protrusion to prevent the push rod 32 from falling off.
[0036] In some other embodiments, there are three positioning mechanisms 3 which are evenly distributed around the axial circumference of the positioning cylinder 23, so that the positioning effect is better and the steel pipe pile is clamped more tightly.
[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A steel pipe pile pressing device, characterized in that: It comprises a pile driver which can be mounted on an excavator, the pile driver is provided with a clamping mouth, and the clamping mouth clamps a vibrating clamp; The vibration clamp includes a clamping part, a limit plate and a positioning cylinder that are connected in sequence. The clamping part is clamped by the clamping nozzle, and the end of the positioning cylinder away from the limit plate is an open end. The positioning cylinder is used to be sleeved on the top of the steel pipe pile, and a positioning mechanism for positioning the steel pipe pile is provided on the side wall of the positioning cylinder.
2. The steel pipe pile pressing device according to claim 1, characterized in that: There are two positioning mechanisms which are symmetrically arranged along the axis of the positioning cylinder.
3. The steel pipe pile pressing device according to claim 1, characterized in that: There are three positioning mechanisms which are evenly distributed around the axial direction of the positioning cylinder.
4. The steel pipe pile pressing device according to claim 2 or 3, characterized in that: The positioning mechanism comprises an inclined swing rod and a horizontally arranged push rod, the swing rod is hinged to the side wall of the positioning cylinder, the swing rod is partially located inside the positioning cylinder, the push rod is horizontally slidably connected to the side wall of the positioning cylinder and can move to the inside of the positioning cylinder, the part of the swing rod outside the positioning cylinder is movably connected to an end of the push rod away from the positioning cylinder, and the part of the swing rod inside the positioning cylinder is above the push rod; When the positioning cylinder is sleeved onto the steel pipe pile, the steel pipe pile pushes the swing rod to swing, so that the push rod is pressed tightly onto the steel pipe pile.
5. The steel pipe pile pressing device according to claim 4, characterized in that: The swing rod is provided with a waist-shaped hole, and the push rod is provided with a pin shaft matched with the waist-shaped hole.
6. The steel pipe pile pressing device according to claim 4, characterized in that: The portion of the swing rod located inside the positioning cylinder is wrapped with a first elastic layer, and the end of the push rod away from the swing rod is wrapped with a second elastic layer.