A pulling vehicle for bridge construction
By designing a bridge construction extraction vehicle and adopting a mechanized extraction mechanism and lifting components, the problem of damage to the extraction rod caused by manual extraction was solved, and the extraction rod was made efficient and reusable.
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
- 2026-06-09
Smart Images

Figure CN224338105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extraction rod technology, and in particular to an extraction vehicle for bridge construction. 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. Furthermore, the position and angle of the extraction rod cannot be adjusted according to the construction direction, resulting in the manual extraction being performed from below at an angle. This operation easily damages the extraction rod, making it unusable. In addition, manual extraction of the extraction rod is laborious. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies where manual extraction can easily damage the extraction rod, and to propose an extraction vehicle for bridge construction.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bridge construction extraction vehicle includes:
[0007] The vehicle body includes an upper frame and a lower frame, the upper frame and the lower frame being arranged parallel to each other vertically, and a support plate and a panel being respectively provided on the top of the upper frame;
[0008] A pulling mechanism is provided on the panel and is used to pull out the pulling rod.
[0009] A power supply box is disposed on the panel and is electrically connected to the extraction mechanism. The power supply box is used to provide power to the extraction mechanism.
[0010] A control box is disposed on the panel and is electrically connected to the power supply box and the pulling mechanism. The control box is used to control the pulling mechanism to perform the pulling operation.
[0011] A lifting assembly is disposed between the upper frame and the lower frame, and the lifting assembly is used to adjust the interval between the upper frame and the lower frame.
[0012] In one feasible embodiment, the pull-out mechanism includes:
[0013] 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.
[0014] 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.
[0015] An electric motor, the output shaft of which extends into the interior of the panel, and the output shaft of which is connected to one of the drive wheels;
[0016] Multiple control gears, the multiple control gears forming two sets of control gear sets;
[0017] One set of control gears is disposed inside the panel, and the set of control gears meshes with two sets of transmission gears respectively.
[0018] 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.
[0019] In one feasible embodiment, the pull-out mechanism further includes:
[0020] A locking lever, one end of which extends through into the interior of the panel, abutting against the control gear, and the locking lever is threadedly connected to the panel.
[0021] In one feasible embodiment, the locking lever is a screw.
[0022] In one feasible embodiment, the lifting assembly includes:
[0023] Multiple folding rods are connected end to end, and the two folding rods connected end to end are hinged together. The multiple folding rods connected end to end form a group of folding parts. Two groups of folding parts are arranged between the upper frame and the lower frame. The two groups of folding parts are arranged opposite to each other. The bottom end of the folding part is connected to the lower frame, and the top end of the folding part is connected to the upper frame.
[0024] A telescopic component is inclinedly disposed between the upper frame and the lower frame. One end of the telescopic component is hinged between the two sets of folding parts, and the other end of the telescopic component is connected to the bottom end of the support plate or the panel.
[0025] In one feasible embodiment, the vehicle body further includes:
[0026] Multiple positioning parts are arranged along the outer periphery of the lower frame, and the positioning parts are fixedly connected to the lower frame, that is, the multiple positioning parts lock the vehicle body as a whole at the outer periphery of the lower frame.
[0027] In one feasible embodiment, the positioning part includes:
[0028] A connecting rod, one end of which is connected to the lower frame;
[0029] A connecting block, one end of which is connected to the other end of the connecting rod, and the other end of the connecting block is provided with mounting holes running vertically through it;
[0030] A movable rod, one end of which is provided with a positioning hole, and the other end of which extends through the mounting hole to the bottom of the connecting block, and the other end of which abuts against the ground;
[0031] A locking element is provided on one end of the moving rod through the positioning hole. The locking element is perpendicular to the moving rod and is engaged with the top of the connecting block.
[0032] In one feasible embodiment, the positioning part includes:
[0033] An anti-slip pad is fitted onto one end of the moving rod, and the anti-slip pad is located at the end away from the locking member.
[0034] The beneficial effects of this utility model are as follows:
[0035] In this embodiment, the present invention uses a lifting assembly to raise the pull-out mechanism on the panel to a certain pull-out position, and then uses the pull-out mechanism to mechanically pull out the pull-out rod. This ensures that the pull-out mechanism can pull the pull-out plate into the appropriate pull-out position, effectively preventing damage to the pull-out rod due to improper pull-out position. Therefore, it effectively solves the technical problem in the prior art where manual pulling easily damages the pull-out rod. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the overall structure of a bridge construction extraction vehicle provided in an embodiment of this utility model;
[0037] Figure 2This is a schematic diagram of the extraction mechanism in a bridge construction extraction vehicle provided in this embodiment of the utility model;
[0038] Figure 3 This is a schematic diagram of the extraction mechanism in a bridge construction extraction vehicle provided in this embodiment of the utility model;
[0039] Figure 4 This is a schematic diagram of the lifting component structure in a bridge construction extraction vehicle provided in this embodiment of the utility model;
[0040] Figure 5 This is a schematic diagram of the positioning part structure of a bridge construction extraction vehicle provided in an embodiment of the present utility model.
[0041] The markings in the diagram are as follows:
[0042] 1. Vehicle body; 11. Underframe; 12. Wheels;
[0043] 13. Positioning part; 131. Connecting rod; 132. Connecting block; 133. Moving rod; 1331. Anti-slip pad; 134. Locking component;
[0044] 2. Upper frame; 21. Load-bearing plate; 22. Telescopic component; 23. Folding rod;
[0045] 3. Pull-out mechanism; 31. Locking rod; 32. Control gear; 33. Pull-out wheel; 34. Transmission wheel;
[0046] 4. Panel; 41. Power supply box; 42. Control box; 43. Strip-shaped through hole;
[0047] 5. Motor. Detailed Implementation
[0048] 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.
[0049] 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.
[0050] 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.
[0051] 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. Example
[0052] Reference Figures 1 to 5To address the technical problem of damage to the pulling rod caused by manual pulling in existing technologies, this utility model provides a bridge construction pulling vehicle in this embodiment. The pulling vehicle includes: a vehicle body 1, a lifting mechanism, a pulling mechanism 3, a power supply box 41, and a control box 42. The vehicle body 1 includes an upper frame 2 and a lower frame 11, which are arranged parallel vertically. A bearing plate 21 and a panel 4 are respectively provided on the top of the upper frame 2. The pulling mechanism 3 is disposed on the panel 4 and is used to pull the pulling rod. The power supply box 41 is disposed on the panel 4 and is electrically connected to the pulling mechanism 3, providing power to the pulling mechanism 3. The control box 42 is disposed on the panel 4 and is electrically connected to both the power supply box 41 and the pulling mechanism 3, controlling the pulling mechanism 3 to perform the pulling operation. The lifting assembly is disposed between the upper frame 2 and the lower frame 11. The lifting assembly is used to adjust the interval between the upper frame 2 and the lower frame 11, so that the pulling mechanism 3 on the upper frame 2 can reach a certain position to pull out the pulling rod, ensuring the pulling effect of the pulling mechanism 3. In this embodiment, after the pulling mechanism 3 on the panel 4 is raised to a certain pulling position by the lifting assembly, the pulling mechanism 3 mechanically pulls out the pulling rod, ensuring that the pulling mechanism 3 can pull the pulling plate in a suitable pulling position, effectively avoiding damage to the pulling rod due to an unsuitable pulling position. This effectively solves the technical problem in the prior art where manual pulling easily causes damage to the pulling rod.
[0053] Reference Figure 1 , Figure 2 and Figure 3In this embodiment, two through holes 43 are provided through the panel 4, and the pulling mechanism 3 is located at the two through holes 43. Specifically, the pulling mechanism 3 includes: multiple pulling wheels 33, multiple transmission wheels 34, multiple control gears 32, and a motor 5. The multiple pulling wheels 33 are symmetrically arranged in pairs on the panel 4, forming two groups of pulling wheels 33. The two groups of pulling wheels 33 are symmetrically arranged on the panel 4, and the multiple pulling wheels 33 are rotatably connected to the panel 4. This allows the pulling rod to be placed between the two symmetrically arranged pulling wheels 33 for pulling. Multiple transmission wheels 34 are disposed inside the panel 4, 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 4. 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 5 extends into the interior of the panel 4 and is connected to one of the transmission wheels 34 to enable the motor 5 to output power. Multiple control gears 32 form two sets of control gears 32, with meshing between each set. One set of control gears 32 is disposed inside the panel 4 and meshes with both sets of transmission wheels 34, allowing the transmission wheels 34 connected to the output shaft of the motor 5 to transmit power to the other set of transmission wheels 34 via the control gears 32, thus completing the pull-out operation. Another set of control gears 32 is located at the bottom of the panel 4, and the two sets of control gears 32 are rotatably connected by a rotating shaft. This allows the status of the control gears 32 inside the panel 4 to be displayed through the control gears 32 located at the bottom of the panel 4, making it easier for operators to determine whether the control gears 32 are working properly.
[0054] In this embodiment, to facilitate an emergency stop of the extraction mechanism 3, the extraction mechanism 3 further includes a locking rod 31. One end of the locking rod 31 extends through into the interior of the panel 4, 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 4. That is, by threading the locking rod 31 to the panel 4, and then moving one end of the locking rod 31 into the interior of the panel 4, 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 5 needs to be de-energized during this process), effectively allowing the extraction mechanism 3 to stop quickly and effectively. In a feasible embodiment, the locking rod 31 is a screw.
[0055] Reference Figure 4In this embodiment, the lifting assembly includes multiple folding rods 23 and telescopic members 22. Every two folding rods 23 are connected end-to-end, and each pair of end-to-end folding rods 23 is hinged together. Multiple end-to-end hinged folding rods 23 form a set of folding sections. Two sets of folding sections are disposed between the upper frame 2 and the lower frame 11, and are arranged opposite to each other. The bottom end of each folding section is connected to the lower frame 11, and the top end of each folding section is connected to the upper frame 2. The telescopic member 22 is obliquely disposed between the upper frame 2 and the lower frame 11. One end of the telescopic member 22 can be hinged between the two sets of folding sections via a connecting rod 131, and the other end of the telescopic member 22 is connected to the bottom end of the support plate 21 / the panel 4. In this embodiment, multiple folding rods 23 are connected end to end to form a folding part. Then, a connecting rod 131 (not shown in the figure) is set between the two sets of folding parts to connect the same end of the two sets of folding parts. Then, a telescopic member 22 is hinged on the connecting rod 131 so that when the telescopic member 22 is extended or retracted, it can push the panel 4 or the support plate 21 to move, and then drive the upper frame 2 to move as a whole, thereby adjusting the pull-out position of the pull-out mechanism 3.
[0056] In this embodiment, in order to facilitate the overall movement of the extraction vehicle, the vehicle body 1 further includes: a plurality of wheels 12, which are disposed at the bottom end of the lower frame. The wheels 12 are used to move the extraction vehicle as a whole so as to adjust the working position of the extraction mechanism 3.
[0057] Reference Figure 5In this embodiment, to facilitate overall positioning and locking of the pull-out vehicle, the vehicle body 1 further includes: multiple positioning parts 13, which are arranged along the outer periphery of the lower frame 11 and are fixedly connected to the lower frame 11, i.e., the multiple positioning parts 13 lock the vehicle body 1 as a whole at the outer periphery of the lower frame 11. For ease of description, the structure of the positioning part 13 is described using one positioning part 13. Specifically, one positioning part 13 includes: a connecting rod 131, a connecting block 132, a moving rod 133, and a locking member 134. One end of the connecting rod 131 is connected to the lower frame 11. One end of the connecting block 132 is connected to the other end of the connecting rod 131, and the other end of the connecting block 132 has mounting holes (not shown in the figure) extending vertically through it. One end of the movable rod 133 is provided with a positioning hole (not shown in the figure), and the other end of the movable rod 133 extends to the bottom of the connecting block 132 through the mounting hole, and the other end of the movable rod 133 abuts against the ground. The locking member 134 is provided on one end of the movable rod 133 through the positioning hole. The locking member 134 is perpendicular to the movable rod 133 and is engaged with the top of the connecting block 132, so as to limit the position of the movable rod 133 in the mounting hole. In a feasible embodiment, in order to enhance the locking effect of the positioning part 13, the positioning part 13 further includes an anti-slip pad 1331, which is sleeved on one end of the movable rod 133 and located at the end away from the locking member 134. The anti-slip pad 1331, by cooperating with the movable rod 133 to abut against the ground, makes the vehicle body 1 unable to move as a whole.
[0058] 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 bridge construction extraction vehicle, characterized in that, include: The vehicle body includes an upper frame and a lower frame, the upper frame and the lower frame being arranged parallel to each other vertically, and a support plate and a panel being respectively provided on the top of the upper frame; A pulling mechanism is provided on the panel and is used to pull out the pulling rod. A power supply box is disposed on the panel and is electrically connected to the extraction mechanism. The power supply box is used to provide power to the extraction mechanism. A control box is disposed on the panel and is electrically connected to the power supply box and the pulling mechanism. The control box is used to control the pulling mechanism to perform the pulling operation. A lifting assembly is disposed between the upper frame and the lower frame, and the lifting assembly is used to adjust the interval between the upper frame and the lower frame.
2. The bridge construction extraction vehicle according to claim 1, characterized in that, The extraction mechanism includes: 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 the output shaft of which is connected to one of the drive wheels; Multiple control gears, the multiple control gears forming two sets 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.
3. A bridge construction extraction vehicle according to claim 2, 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.
4. A bridge construction extraction vehicle according to claim 3, characterized in that, The extraction mechanism also includes: A locking lever, one end of which extends through into the interior of the panel, abutting against the control gear, and the locking lever is threadedly connected to the panel.
5. A bridge construction extraction vehicle according to claim 4, characterized in that, The locking rod is a screw.
6. A bridge construction extraction vehicle according to any one of claims 1-5, characterized in that, The lifting assembly includes: Multiple folding rods are connected end to end, and the two folding rods connected end to end are hinged together. The multiple folding rods connected end to end form a group of folding parts. Two groups of folding parts are arranged between the upper frame and the lower frame. The two groups of folding parts are arranged opposite to each other. The bottom end of the folding part is connected to the lower frame, and the top end of the folding part is connected to the upper frame. A telescopic component is inclinedly disposed between the upper frame and the lower frame. One end of the telescopic component is hinged between the two sets of folding parts, and the other end of the telescopic component is connected to the bottom end of the support plate or the panel.
7. A bridge construction extraction vehicle according to claim 6, characterized in that, The vehicle body also includes: Multiple positioning parts are arranged along the outer periphery of the lower frame, and the positioning parts are fixedly connected to the lower frame, that is, the multiple positioning parts lock the vehicle body as a whole at the outer periphery of the lower frame.
8. A bridge construction extraction vehicle according to claim 7, characterized in that, The positioning unit includes: A connecting rod, one end of which is connected to the lower frame; A connecting block, one end of which is connected to the other end of the connecting rod, and the other end of the connecting block is provided with mounting holes running vertically through it; A movable rod, one end of which is provided with a positioning hole, and the other end of which extends through the mounting hole to the bottom of the connecting block, and the other end of which abuts against the ground; A locking element is provided on one end of the moving rod through the positioning hole. The locking element is perpendicular to the moving rod and is engaged with the top of the connecting block.
9. A bridge construction extraction vehicle according to claim 8, characterized in that, The positioning unit includes: An anti-slip pad is fitted onto one end of the moving rod, and the anti-slip pad is located at the end away from the locking member.