Drawing and pulling structure for drawing and pulling rod
By designing an automated extraction structure and utilizing a combination of motor-driven transmission wheels, the problem of low efficiency in manual extraction in existing technologies has been solved, achieving highly efficient automated extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, the extraction rod requires manual operation, resulting in low construction efficiency.
Design a pulling structure that includes a pulling wheel, a transmission wheel, a control gear, and a motor. The pulling is automated by driving the transmission wheel with a motor, reducing manual operation.
It improved the construction efficiency of the extraction rod, reduced manpower consumption, and achieved automated extraction.
Smart Images

Figure CN224170078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extraction rod technology, and in particular to an extraction structure for extraction rods. Background Technology
[0002] Rubber pull rods are a new type of mandrel used for creating small-diameter holes in concrete components. Primarily designed for forming smaller prestressed holes in bridges, they can also be used for hole formation in concrete in other construction industries. Utilizing the high strength, high elasticity, and incompressible properties of rubber, the rod elongates axially and naturally bends radially under axial force. The pull rod offers powerful extraction, convenient construction, reusability, long service life, smooth surface, good flatness, and smooth pre-drilled hole walls. Furthermore, extraction is not limited by the concrete setting time, resulting in significant economic benefits.
[0003] Currently, the extraction of the extraction rod requires manual extraction, which necessitates the cooperation of multiple people, making it time-consuming, labor-intensive, and inefficient. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of low efficiency in manual extraction in existing technologies, and to propose an extraction structure for extraction rods.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pull-out structure for a pull-out rod, comprising:
[0007] panel;
[0008] Multiple pull-out wheels are arranged symmetrically in pairs on the panel, forming two groups of pull-out wheels. The two groups of pull-out wheels are symmetrically arranged on the panel, and the multiple pull-out wheels are rotatably connected to the panel.
[0009] Multiple drive wheels are disposed inside the panel. The multiple drive wheels are symmetrically arranged in pairs along the setting direction of the pull-out wheel group to form two sets of drive wheel groups. The two sets of drive wheel groups are symmetrically arranged inside the panel. The drive wheels are rotatably connected to the pull-out wheel, and the multiple pull-out wheels in each set mesh with each other.
[0010] An electric motor, the output shaft of which extends into the interior of the panel and is connected to the drive wheel;
[0011] Multiple control gear sets, the multiple control gears forming two sets of control gear sets, and gear meshing between each set of control gear sets;
[0012] One set of control gears is disposed inside the panel, and the set of control gears meshes with two sets of transmission gears respectively.
[0013] In one feasible embodiment, another set of the control gears is disposed at the bottom of the panel, and the two sets of control gears are rotatably connected by a rotating shaft.
[0014] In one feasible embodiment, the pull-out structure further includes:
[0015] A locking lever, one end of which extends through into the interior of the panel, and the other end of which can abut against the control gear, and the locking lever is threadedly connected to the panel.
[0016] In one feasible embodiment, the locking lever is a screw.
[0017] In one feasible embodiment, two strip-shaped through holes are provided through the panel, and two sets of pull-out wheels on the pull-out structure are respectively located on one side of the two strip-shaped through holes.
[0018] In one feasible embodiment, the pull-out structure further includes:
[0019] A power supply box is disposed on the panel and is electrically connected to the pull-out structure. The power supply box is used to provide power to the pull-out structure.
[0020] A control box is disposed on the panel and is electrically connected to the power supply box and the pull-out structure. The control box is used to control the pull-out structure to perform the pull-out operation.
[0021] The beneficial effects of this utility model are as follows:
[0022] This invention eliminates the need for manual extraction of the rod, significantly reducing labor costs. It effectively addresses the low efficiency of manual extraction in existing technologies. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of a pulling structure for a pulling rod provided in an embodiment of this utility model;
[0024] Figure 2 This is a schematic diagram of a part of the extraction structure for an extraction rod provided in an embodiment of this utility model.
[0025] The markings in the diagram are as follows:
[0026] 1. Panel; 11. Strip-shaped through hole; 2. Motor;
[0027] 3. Pull-out mechanism; 31. Locking rod; 32. Control gear; 33. Pull-out wheel; 34. Transmission wheel;
[0028] 4. Control box; 5. Power supply box. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] Example
[0034] Reference Figures 1-2To address the technical problem of low efficiency in manual extraction in existing technologies, this invention provides an extraction structure 3 for extracting rods. The extraction structure 3 is mounted on a panel 1 and specifically includes: multiple extraction wheels 33, multiple transmission wheels 34, multiple control gears 32, and a motor 2. The multiple extraction wheels 33 are symmetrically arranged in pairs on the panel 1, forming two groups of extraction wheels 33. These two groups of extraction wheels 33 are symmetrically arranged on the panel 1, and the multiple extraction wheels 33 are rotatably connected to the panel 1. This allows the extraction rod to be placed between the two symmetrically arranged extraction wheels 33 for extraction. Multiple transmission wheels 34 are disposed inside the panel 1, symmetrically arranged in pairs along the direction of the pull-out wheels 33, forming two sets of transmission wheels 34. These two sets of transmission wheels 34 are symmetrically arranged within the panel 1. The transmission wheels 34 and the pull-out wheels 33 are rotatably connected via a rotating shaft (not shown in the figure), and the pull-out wheels 33 in each set mesh with each other. The output shaft of the motor 2 extends into the interior of the panel 1 and is connected to one of the transmission wheels 34 to enable the motor 2 to output power. Multiple control gears 32 form two sets of control gears 32, with each set meshing with the others. One set of control gears 32 is disposed inside the panel 1 and meshes with both sets of transmission wheels 34, allowing the transmission wheels 34 connected to the output shaft of the motor 2 to transmit power to the other set of transmission wheels 34 via the control gears 32, thus completing the pull-out operation. In this embodiment, when the extraction rod needs to be pulled out, it is only necessary to place the extraction rod between two sets of extraction wheels 33. Then, the motor 2 drives one set of transmission wheels 34 to rotate, and simultaneously, one set of transmission wheels 34 drives the other set of transmission wheels 34 to rotate through the control gear 32. This allows the two sets of extraction wheels 33 to pull out the extraction rod. That is, manual extraction of the extraction rod is unnecessary, greatly reducing manpower. This effectively solves the technical problem of low efficiency in manual extraction in existing technologies.
[0035] In this embodiment, another set of control gears 32 is disposed at the bottom of the panel 1, and the two sets of control gears 32 are rotatably connected by a rotating shaft. This allows the control gears 32 disposed at the bottom of the panel 1 to be displayed, facilitating the operator's assessment of whether the control gears 32 are functioning correctly.
[0036] In this embodiment, to facilitate an emergency stop of the pull-out structure 3, the pull-out structure 3 further includes a locking rod 31. One end of the locking rod 31 extends through into the interior of the panel 1, and the other end of the locking rod 31 can abut against the control gear 32. The locking rod 31 is threadedly connected to the panel 1. That is, by threading the locking rod 31 to the panel 1, and then moving one end of the locking rod 31 into the interior of the panel 1, one end of the locking rod 31 abuts against the control gear 32, effectively preventing the control gear 32 from transmitting power (it should be noted that the motor 2 needs to be de-energized during this process), effectively allowing the entire pull-out structure 3 to stop quickly. In a feasible embodiment, the locking rod 31 is a screw.
[0037] In this embodiment, in order to reduce the impact of cement residue and other debris on the extraction rod on the rotation of the extraction wheel 33, two strip-shaped through holes 11 are provided through the panel 1. The two sets of extraction wheels 33 on the extraction structure 3 are respectively located on one side of the two strip-shaped through holes 11, so that when the extraction wheels 33 are extracting the extraction rod, they can discharge cement residue and other debris on the extraction rod from the panel 1.
[0038] Reference Figure 2 In this embodiment, to control the pulling operation of the pull-out structure 3, the pull-out structure 3 further includes a power supply box 5 and a control box 4. The power supply box 5 is disposed on the panel 1 and electrically connected to the pull-out structure 3, and is used to provide power to the pull-out structure 3. The control box 4 is disposed on the panel 1 and electrically connected to both the power supply box 5 and the pull-out structure 3, and is used to control the pull-out operation of the pull-out structure 3.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pulling structure for a pulling rod, characterized in that, include: panel; Multiple pull-out wheels are arranged symmetrically in pairs on the panel, forming two groups of pull-out wheels. The two groups of pull-out wheels are symmetrically arranged on the panel, and the multiple pull-out wheels are rotatably connected to the panel. Multiple drive wheels are disposed inside the panel. The multiple drive wheels are symmetrically arranged in pairs along the setting direction of the pull-out wheel group to form two sets of drive wheel groups. The two sets of drive wheel groups are symmetrically arranged inside the panel. The drive wheels are rotatably connected to the pull-out wheel, and the multiple pull-out wheels in each set mesh with each other. An electric motor, the output shaft of which extends into the interior of the panel and is connected to the drive wheel; Multiple control gear sets, the multiple control gears forming two sets of control gear sets, and gear meshing between each set of control gear sets; One set of control gears is disposed inside the panel, and the set of control gears meshes with two sets of transmission gears respectively.
2. The extraction structure for an extraction rod according to claim 1, characterized in that, Another set of control gears is located at the bottom of the panel, and the two sets of control gears are rotatably connected by a rotating shaft.
3. A pulling structure for a pulling rod according to claim 1 or 2, characterized in that, The extraction structure also includes: A locking lever, one end of which extends through into the interior of the panel, and the other end of which can abut against the control gear, and the locking lever is threadedly connected to the panel.
4. The extraction structure for an extraction rod according to claim 3, characterized in that, The locking rod is a screw.
5. The extraction structure for an extraction rod according to claim 1, characterized in that, The panel has two through holes, and the two sets of pull-out wheels on the pull-out structure are located on one side of the two through holes.
6. The extraction structure for an extraction rod according to claim 1, characterized in that, The extraction structure also includes: A power supply box is disposed on the panel and is electrically connected to the pull-out structure. The power supply box is used to provide power to the pull-out structure. A control box is disposed on the panel and is electrically connected to the power supply box and the pull-out structure. The control box is used to control the pull-out structure to perform the pull-out operation.