Auxiliary pine pile positioning device based on multidirectional limiting

By introducing positioning components and a driving mechanism into the pine pile positioning device, stable insertion of pine piles and positioning for different sizes are achieved, solving the problems of worker safety hazards and cumbersome offset adjustments in existing technologies, and improving construction safety and efficiency.

CN224186748UActive Publication Date: 2026-05-01CHINA CHEM SOUTH CONSTR INVESTMENT (JIANGXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CHEM SOUTH CONSTR INVESTMENT (JIANGXI) CO LTD
Filing Date
2025-02-19
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing pine pile positioning devices have problems such as the danger of workers having to straighten the piles during the pile driving process, the pine piles shifting and the need for complicated adjustments. In addition, the limiting plate is attached to the surface of the pine pile, which hinders the movement and makes it difficult to adapt to pine piles of different sizes.

Method used

The positioning component includes a reciprocating slider and a positioning wheel. The slider reciprocates in the limiting groove through a drive mechanism. The positioning wheel contacts the surface of the pine stake and engages with the first and second planar threads to ensure accurate positioning of the pine stake.

Benefits of technology

It avoids the problem of movement obstruction caused by the limit plate sticking to the surface of the pine stake, adapts to pine stakes of different sizes, ensures stability and accurate positioning during insertion, and reduces the danger of manual operation.

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Abstract

The utility model relates to the technical field of pine pile positioning devices, in particular to an auxiliary pine pile positioning device based on multidirectional limiting, which comprises a guide plate, an auxiliary frame used for supporting the guide plate is arranged at the bottom of the guide plate, and fixing screws used for fixing the auxiliary frame are arranged at four corners of the bottom of the auxiliary frame. The guide plate is provided with a plurality of pile holes which are arranged in a rectangular array and used for pine piles to be inserted, and positioning assemblies used for restraining the pine piles to the center positions of the pile holes are further arranged at the positions, corresponding to the pile holes, of the bottom of the guide plate. The positioning assembly is arranged at the bottom of the guide plate and comprises the sliding piece moving in a reciprocating mode, the positioning wheel is arranged on the sliding piece and makes contact with the surface of the pine pile, and therefore the problem that movement of the pine pile is affected due to the fact that the limiting plate in the transmission device is attached to the surface of the pine pile is solved, and meanwhile the transmission device is suitable for the pine piles of different sizes.
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Description

Technical Field

[0001] This utility model relates to the technical field of pine pile positioning devices, specifically a pine pile positioning device based on multi-directional limiting auxiliary type. Background Technology

[0002] Pine piles are widely used in river reinforcement, especially for soft soil foundations. The reinforcement mechanism is twofold: First, the piles provide support. When subjected to external loads, the stress in the foundation is redistributed according to the pile-soil stress ratio, gradually concentrating towards the piles. This reduces the stress on the surrounding soil, with most of the load borne by the pine piles. Because the piles have superior strength and deformation resistance compared to the soil, the resulting composite foundation has better bearing capacity and modulus than the original soil, thus reducing deformation and increasing bearing capacity. Second, the piles utilize a compaction effect. During construction, the pine piles are driven in, forcibly compressing the original soil at the pile hole location, increasing the soil density within a certain range around the pile. This increases the bearing capacity of the soil between the piles and reduces compressibility. In existing river dredging projects, pine piles are used to reinforce the riverbed. On-site, according to design requirements, the pine piles are 4m long, with an average diameter of approximately 15mm and a weight of up to 30kg. During construction, multiple people are usually needed to transport the pine logs to the bottom of the riverbed for piling operations. However, the process presents several challenges: workers must manually straighten the 4-meter-long pine logs, which poses a certain risk. Furthermore, the riverbed is composed of silt and soft soil, which often causes the pine logs to shift during piling, requiring constant adjustments as the piles are driven, making the process quite cumbersome.

[0003] Chinese patent CN217556910U discloses a device for quickly driving pine stakes using an excavator, comprising a connecting column and a guide plate. A stake cap is fixedly connected to the bottom end of the connecting column. Multiple connecting plates arranged in a circular array are fixedly connected to the inner wall of the stake cap. Limiting plates are fixedly connected to the ends of the connecting plates. The limiting plates are arc-shaped, and pine stakes are fitted to the inner side of the limiting plates. One end of the pine stake is inserted into the pile cap. Support feet are fixedly connected to the four corners of the guide plate, and an auxiliary guide plate is provided below the guide plate. This patent utilizes multiple limiting plates on the stake cap; these plates work together to limit the movement of the pine stake, ensuring stable operation.

[0004] In this prior art, the limiting plate is set in an arc shape and fits against the pine stake. When the pine stake moves down, there is friction between the limiting plate and the pine stake, which affects the movement of the pine stake. In addition, there may be certain errors in the manufacturing of the pine stake. If the size of the pine stake is too large, the tree stake cannot be inserted into the limiting plate. Utility Model Content

[0005] The purpose of this utility model is to provide a pine stake positioning device based on multi-directional limiting auxiliary type. By setting a positioning component at the bottom of the guide plate, the positioning component includes a reciprocating sliding component with a positioning wheel on it. The positioning wheel contacts the surface of the pine stake, thereby solving the problem of the limiting plate and the surface of the pine stake in the transmission device being attached to each other, which affects the movement of the pine stake. At the same time, it can also adapt to pine stakes of different sizes.

[0006] To address the problems in existing technologies, this utility model provides a pine stake positioning device based on multi-directional limiting assistance, including a guide plate. The bottom of the guide plate is provided with an auxiliary frame for supporting the guide plate. The four corners of the bottom of the auxiliary frame are provided with fixing screws for fixing the auxiliary frame. The guide plate has several pile holes arranged in a rectangular array for inserting pine stakes. The bottom of the guide plate is also provided with a positioning component at the position corresponding to each pile hole for constraining the pine stake to the center position of the pile hole.

[0007] Preferably, the positioning component includes a housing fixed to the bottom of the guide plate, and the housing is provided with a plurality of sliding parts for constraining the pine pile to the center position of the pile hole. The housing is provided with a limiting groove corresponding to each sliding part, and the sliding part can slide in the limiting groove.

[0008] Preferably, one end of the slider passes through the limiting groove and is rotatably equipped with a positioning wheel, which contacts the surface of the pine stake.

[0009] Preferably, the bottom of the slider is further provided with a plurality of second planar threads, and the positioning assembly includes a driving mechanism for driving the slider to reciprocate in the limiting groove.

[0010] Preferably, the driving mechanism includes a support fixed to the bottom of the guide plate and a first gear rotatably mounted on the support. The first gear has a first planar thread on the side near the slide, and the first planar thread meshes with a second planar thread.

[0011] Preferably, the driving mechanism includes a second gear for driving the first gear to rotate. The second gear meshes with the first gear. A connecting shaft is connected to the center of the second gear. One end of the connecting shaft passes through the guide plate and is connected to the first handwheel.

[0012] Preferably, the auxiliary frame is provided with an auxiliary plate, and the bottom of the auxiliary frame is provided with a base plate. The auxiliary plate and the base plate are provided with through holes corresponding to each pile hole.

[0013] Preferably, the fixing screw is screwed onto the base plate, and one end of the fixing screw is connected to a second handwheel.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This application provides a positioning assembly at the bottom of the guide plate, which includes a reciprocating slide. A positioning wheel is mounted on the slide, capable of contacting the surface of the pine stake. When the pine stake moves, the positioning wheel can rotate freely, thus avoiding the movement obstruction problem caused by the limiting plate's contact with the pine stake surface in traditional transmission devices. Furthermore, the slide can reciprocate within a limiting groove; this design allows it to adapt to pine stakes of different sizes, and even if there are errors in the processing of the pine stake, the positioning wheel can still maintain contact with the pine stake surface.

[0016] 2. This application also employs a design where the first and second planar threads mesh with each other. By rotating the first handwheel, the second gear is driven to rotate, which in turn drives the first gear to rotate. Under the combined action of the first and second planar threads, multiple sliding parts can move synchronously, thereby effectively constraining the pine stake to the center position of the pile hole and preventing the pine stake from shifting during movement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a pine stake positioning device based on multi-directional limiting assistance according to this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of a guide plate and positioning components of a pine stake positioning device based on multi-directional limiting auxiliary type.

[0019] Figure 3 This is a schematic diagram of the first three-dimensional structure of a positioning component of a pine stake positioning device based on a multi-directional limiting auxiliary type according to this utility model.

[0020] Figure 4 This is a schematic diagram of the second three-dimensional structure of a positioning component of a pine stake positioning device based on a multi-directional limiting auxiliary type according to this utility model.

[0021] Figure 5 This is a first exploded structural diagram of a positioning component of a multi-directional limiting auxiliary pine stake positioning device according to this utility model.

[0022] Figure 6 This is a second exploded structural diagram of a positioning component of a multi-directional limiting auxiliary pine stake positioning device according to this utility model.

[0023] The following are the labels in the diagram: 1. Guide plate; 11. Pile hole; 12. Positioning component; 121. Housing; 1211. Limiting groove; 122. Support component; 123. First gear; 1231. First planar thread; 124. Sliding component; 1241. Positioning wheel; 1242. Second planar thread; 125. Second gear; 1251. Connecting shaft; 1252. First handwheel; 2. Auxiliary frame; 21. Auxiliary plate; 22. Base plate; 3. Fixing screw; 31. Second handwheel. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-6 As shown, this utility model provides a pine pile positioning device based on multi-directional limiting assistance, including a guide plate 1. The guide plate 1 serves as the main guiding surface for inserting pine piles, ensuring that the pine piles can be inserted in a predetermined direction and position. An auxiliary frame 2 is provided at the bottom of the guide plate 1 to support it, ensuring stability during construction and preventing shaking or displacement. Fixing screws 3 are provided at the four corners of the bottom of the auxiliary frame 2 for fixing it. The guide plate 1 has several pile holes 11 arranged in a rectangular array for inserting pine piles. A positioning component 12 is also provided at the bottom of the guide plate 1 corresponding to each pile hole 11 to constrain the pine pile to the center position of the pile hole 11. The positioning component 12 provides multi-directional limiting for the pine pile inserted into the pile hole 11, ensuring that the pine pile is accurately constrained to the center position of the pile hole 11 and preventing displacement or tilting during insertion.

[0026] The positioning assembly 12 includes a housing 121 fixed to the bottom of the guide plate 1. The housing 121 contains several sliding members 124 for constraining the pine stakes to the center position of the stake hole 11. The housing 121 has a limiting groove 1211 corresponding to each sliding member 124, allowing the sliding member 124 to slide within the limiting groove 1211. One end of each sliding member 124 passes through the limiting groove 1211 and is rotatably mounted with a positioning wheel 1241. The positioning wheel 1241 contacts the surface of the pine stake. The positioning assembly 12 is designed to accommodate pine stakes of different diameters, and the constraint of pine stakes of different sizes can be achieved by adjusting the position of the sliding members 124.

[0027] A positioning wheel 1241 is mounted on the slider 124, which can contact the surface of the pine stake. When the pine stake moves, the positioning wheel 1241 can rotate freely, thus avoiding the problem of motion obstruction caused by the limiting plate being in contact with the surface of the pine stake in traditional transmission devices. In addition, the slider 124 can reciprocate in the limiting groove 1211. This design allows it to adapt to pine stakes of different sizes. Even if there are errors in the processing of the pine stake, the positioning wheel 1241 can still maintain contact with the surface of the pine stake.

[0028] The bottom of the slider 124 is also provided with several second planar threads 1242. The positioning assembly 12 includes a drive mechanism for driving the slider 124 to reciprocate in the limiting groove 1211. The drive mechanism includes a support member 122 fixed to the bottom of the guide plate 1 and a first gear 123 rotatably mounted on the support member 122. The side of the first gear 123 near the slider 124 is provided with a first planar thread 1231, which meshes with the second planar threads 1242. The drive mechanism includes a second gear 125 for driving the first gear 123 to rotate. The second gear 125 meshes with the first gear 123. A connecting shaft 1251 is connected to the center of the second gear 125. One end of the connecting shaft 1251 passes through the guide plate 1 and is connected to a first handwheel 1252.

[0029] By rotating the first handwheel 1252, the second gear 125 is driven to rotate, which in turn drives the first gear 123 to rotate. Under the combined action of the first planar thread 1231 and the second planar thread 1242, multiple sliding members 124 can move synchronously, thereby effectively constraining the pine stake to the center position of the stake hole 11. This transmission structure not only achieves the intended function, but also has a simple design.

[0030] An auxiliary plate 21 is provided on the auxiliary frame 2, and a base plate 22 is provided at the bottom of the auxiliary frame 2. Through holes corresponding to each pile hole 11 are provided on the auxiliary plate 21 and the base plate 22. The fixing screw 3 is screwed to the base plate 22, and one end of the fixing screw 3 is connected to a second handwheel 31.

[0031] Working Principle: In use, firstly, the auxiliary frame 2 is placed at the bottom of the riverbed. Then, by rotating the second handwheel 31, the fixing screw 3 is driven to rotate and screw into the bottom of the riverbed for fixation. Next, the pine stake is inserted into the stake hole 11, extending into the through holes of the auxiliary plate 21 and the base plate 22. At this time, by rotating the first handwheel 1252, the first handwheel 1252 drives the connecting shaft 1251 to rotate, which in turn drives the second gear 125 to rotate. The rotation of the second gear 125 then drives the first gear 123 to rotate. Under the interaction of the first planar thread 1231 and the second planar thread 1242, multiple sliding parts 124 move synchronously. The positioning wheel 1241 on the sliding part 124 can contact the surface of the pine stake and rotate freely when the pine stake moves, thus avoiding the problem of movement obstruction caused by the limiting plate being in contact with the surface of the pine stake in traditional transmission devices. In addition, the sliding part 124 can reciprocate in the limiting groove 1211, a design that allows it to adapt to pine stakes of different sizes. Even if there are errors in the processing of the pine pile, the positioning wheel 1241 can still maintain contact with the surface of the pine pile, ensuring that the pine pile is effectively constrained and positioned at the center of the pile hole 11.

[0032] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A pine stake positioning device based on multi-directional limiting assistance, characterized in that: The guide plate (1) includes an auxiliary frame (2) for supporting the guide plate (1) at its bottom. The four corners of the bottom of the auxiliary frame (2) are provided with fixing screws (3) for fixing the auxiliary frame (2). The guide plate (1) has several pile holes (11) arranged in a rectangular array for inserting pine piles. The bottom of the guide plate (1) is also provided with a positioning component (12) for constraining the pine pile to the center position of the pile hole (11) at the corresponding position.

2. The pine stake positioning device based on multi-directional limiting assistance according to claim 1, characterized in that: The positioning component (12) includes a housing (121) fixed to the bottom of the guide plate (1). The housing (121) is provided with a plurality of sliding parts (124) for constraining the pine pile to the center position of the pile hole (11). The housing (121) is provided with a limiting groove (1211) corresponding to each sliding part (124), and the sliding part (124) can slide in the limiting groove (1211).

3. A pine stake positioning device based on multi-directional limiting assistance as described in claim 2, characterized in that: One end of the slider (124) passes through the limiting groove (1211) and is rotatably equipped with a positioning wheel (1241), which contacts the surface of the pine stake.

4. A pine stake positioning device based on multi-directional limiting assistance as described in claim 3, characterized in that: The bottom of the slide (124) is also provided with a plurality of second planar threads (1242), and the positioning assembly (12) includes a driving mechanism for driving the slide (124) to reciprocate in the limiting groove (1211).

5. A pine stake positioning device based on multi-directional limiting assistance as described in claim 4, characterized in that: The drive mechanism includes a support member (122) fixed to the bottom of the guide plate (1) and a first gear (123) rotatably mounted on the support member (122). The first gear (123) has a first planar thread (1231) on the side near the slide member (124), and the first planar thread (1231) meshes with the second planar thread (1242).

6. A pine stake positioning device based on multi-directional limiting assistance as described in claim 5, characterized in that: The driving mechanism includes a second gear (125) for driving the first gear (123) to rotate. The second gear (125) meshes with the first gear (123). A connecting shaft (1251) is connected to the center of the second gear (125). One end of the connecting shaft (1251) passes through the guide plate (1) and is connected to the first handwheel (1252).

7. A pine stake positioning device based on multi-directional limiting assistance as described in claim 1, characterized in that: An auxiliary plate (21) is provided on the auxiliary frame (2), and a bottom plate (22) is provided at the bottom of the auxiliary frame (2). The auxiliary plate (21) and the bottom plate (22) are provided with through holes corresponding to each pile hole (11).

8. A pine stake positioning device based on multi-directional limiting assistance as described in claim 1, characterized in that: The fixing screw (3) is screwed onto the base plate (22), and one end of the fixing screw (3) is connected to a second handwheel (31).

Citation Information

Patent Citations

  • Rapid timber pile loosening device of excavator

    CN217556910U