Bridge outside construction trolley
By designing a construction trolley on the outside of the bridge and utilizing elastic telescopic guide wheels and a lifting mechanism to achieve adaptive movement, the problem of low construction efficiency has been solved, construction efficiency has been improved, and collision accidents have been avoided.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANYUE HIGHWAY & BRIDGE
- Filing Date
- 2025-02-17
- Publication Date
- 2026-04-17
AI Technical Summary
In existing bridge construction, the use of scaffolding, suspended baskets, or lifting platforms is inefficient because they cannot be moved along the bridge's extension direction and require frequent rearrangement.
A bridge outer construction trolley was designed, comprising a trolley body, a hanging basket, an adjustment mechanism, and a traveling mechanism. It utilizes elastic telescopic guide wheel sets and a lifting mechanism to achieve adaptive movement, avoid collisions, and improve construction efficiency.
The construction trolley on the outside of the bridge can move adaptively along the extension direction of the bridge's crash barrier, eliminating the need for frequent deployment, saving manpower, improving construction efficiency, and avoiding collision accidents.
Smart Images
Figure CN224133556U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road and bridge construction equipment technology, specifically to a bridge outer construction trolley. Background Technology
[0002] Construction on the exterior of bridges is a crucial aspect of bridge construction and maintenance, typically involving the construction, reinforcement, or repair of exposed parts of the bridge structure (such as piers, beam sides, and crash barriers). Painting and anti-corrosion work on the exterior of bridges refers to the application of anti-corrosion treatment, coating, or film to the steel or concrete surfaces of the bridge's exterior, generally using scaffolding, suspended platforms, or elevators for suspended operations. However, when using scaffolding, suspended platforms, or elevators, these structures or devices cannot be moved along the bridge's extension direction during construction. After completing a section of the bridge, the scaffolding, suspended platforms, or elevators must be rearranged, resulting in low construction efficiency. Utility Model Content
[0003] In view of the above problems, this utility model is proposed to provide a bridge outer construction trolley that overcomes or at least partially solves the above problems.
[0004] The bridge outer construction trolley includes a trolley body, a hanging basket, and an adjustment mechanism; the trolley body includes a frame, a counterweight, and a traveling mechanism; the hanging basket is connected to the frame via a suspension connecting frame; the counterweight is arranged on the frame; the traveling mechanism includes a power mechanism, a transmission mechanism, a driving wheel set, and two driven wheel sets; the driving wheel set and the two driven wheel sets are both arranged at the bottom of the frame, and the power mechanism is connected to the driving wheel set via the transmission mechanism; both driven wheel sets are composed of casters, extending along the traveling direction of the trolley body. The driven walking wheel sets are respectively arranged on the front and rear sides of the active walking wheel sets; the adjustment mechanism includes two elastic telescopic guide wheel sets, each of which consists of two horizontally arranged and oppositely arranged elastic telescopic guide wheels; one elastic telescopic guide wheel of each elastic telescopic guide wheel set is mounted on the frame, and the other elastic telescopic guide wheel is mounted on the suspension connecting frame, and the guide wheels of the two elastic telescopic guide wheels can simultaneously abut against the inner and outer walls of the bridge crash barrier respectively; the two elastic telescopic guide wheel sets are arranged front and rear along the forward direction of the trolley body to adjust the movement direction of the trolley body.
[0005] In one embodiment, the elastic telescopic guide wheel includes a guide wheel, a guide wheel seat, a movable rod, a base, and a spring; the guide wheel is mounted on the front end of the movable rod via the guide wheel seat, and the rear end of the movable rod extends into a straight hole formed in the base; the spring is sleeved on the movable rod, and one end of the spring is fixedly connected to the guide wheel seat, and the other end is fixedly connected to the base; the base is mounted on the vehicle frame or the suspension connection frame.
[0006] In one embodiment, the trolley body further includes a lifting mechanism for causing the active walking wheel set and the two driven walking wheel sets to leave the road surface.
[0007] In one embodiment, the lifting mechanism includes a plurality of hydraulic cylinders and a hydraulic pump; each hydraulic cylinder is fixed to the vehicle frame, and a rubber support shoe is fitted on the free end of the piston rod of each hydraulic cylinder. When the piston rod of the hydraulic cylinder is in the extended state, the rubber support shoe can abut against the road surface.
[0008] In one embodiment, the frame includes a main beam, a first upright, a second upright, and a tie rod. One end of the tie rod is fixedly connected to the first upright, and the other end is fixedly connected to the main beam. The middle part of the tie rod and the middle part of the main beam are both fixedly connected to the second upright. The first upright is fixedly connected to the main beam. The suspension connecting frame is perpendicularly connected to the extension of the main beam.
[0009] During single-sided construction on the outer side of a bridge, this utility model's bridge outer-side construction trolley eliminates the need for multiple deployments (assemblies), effectively improving construction efficiency. It can adaptively move along the extension direction of the bridge's crash barrier, eliminating the need for manual adjustment of the forward direction by construction personnel, thus saving manpower. The frame and suspension connection frame maintain a certain distance from the bridge crash barrier, effectively preventing collisions. Attached Figure Description
[0010] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0011] Figure 1 This is a front view of the bridge outer construction trolley, an exemplary embodiment of the present invention.
[0012] Figure 2 This is a top view of a bridge outer construction trolley, an exemplary embodiment of the present invention.
[0013] Figure 3 This is a right view of a bridge outer construction trolley, an exemplary embodiment of the present invention.
[0014] Figure 4 This is a schematic diagram of the structure of the elastic telescopic guide wheel;
[0015] Figure 5 This is a schematic diagram showing the wheels (or casters) before they are lifted off the ground by the lifting mechanism.
[0016] Figure 6This is a schematic diagram showing the wheels (or casters) after they have been lifted off the ground by the lifting mechanism.
[0017] Explanation of reference numerals in the attached drawings: 1. Hanging basket; 2. Suspension connecting frame; 3. Frame; 4. Counterweight; 5. Power mechanism; 6. Transmission mechanism; 7. Active walking wheel set; 8. Driven walking wheel set; 9. Elastic telescopic guide wheel; 10. Bridge crash barrier; 11. Guide wheel; 12. Guide wheel seat; 13. Movable rod; 14. Base; 15. Spring; 16. Lifting mechanism; 17. Hydraulic cylinder; 18. Rubber support shoe; 19. Main beam; 20. First upright; 21. Second upright; 22. Diagonal tie rod. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Those skilled in the art can make various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the claims and their equivalents.
[0019] The terms “center,” “longitudinal,” “transverse,” “length,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” and “circumferential,” mentioned or possibly mentioned in the description of this utility model, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, the terms "comprising," "including," and any variations thereof are intended to cover non-exclusive inclusion.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] The following description, with reference to the accompanying drawings, describes a bridge outer construction trolley according to an embodiment of the present invention.
[0023] See Figures 1 to 3 According to an embodiment of the present invention, a bridge exterior construction trolley includes a trolley body, a hanging basket 1, and an adjustment mechanism. The hanging basket 1 is connected to the frame 3 of the trolley body via a suspension connecting frame 2. During bridge exterior construction, the trolley body can stop or move on the bridge surface, while the hanging basket 1 is located on the outside of the bridge. The hanging basket 1 serves as a construction platform for providing a place for construction personnel to stand and for carrying materials and tools. In one embodiment, the bridge exterior construction trolley may be equipped with a ladder to facilitate the entry and exit of construction personnel from the hanging basket 1.
[0024] The trolley body includes a frame 3, a counterweight 4, and a traveling mechanism. The counterweight 4 is arranged on the frame 3. During construction on the outside of the bridge, the weight of the hanging basket 1 increases due to carrying construction personnel, materials, tools, etc. The counterweight 4 increases the weight on the side where the trolley body is located, effectively preventing the trolley from tipping over. The counterweight 4 can be a concrete counterweight. The weight of a single counterweight 4 and the number of counterweight 4 arranged on the frame 3 can be determined according to the actual site conditions, and this embodiment does not limit this.
[0025] The traveling mechanism is used to drive the construction trolley on the outer side of the bridge to move as a whole. It includes a power mechanism 5, a transmission mechanism 6, a driving wheel set 7, and two driven wheel sets 8. The driving wheel set 7 and the two driven wheel sets 8 are both arranged at the bottom of the frame 3. The power mechanism 5 is connected to the driving wheel set 7 via the transmission mechanism 6. In one embodiment, the power mechanism 5 can be a combination of a motor and a reducer. The transmission mechanism 6 can include a gear sleeved on the output end of the reducer, a gear sleeved on the shaft of the driving wheel set 7, and a chain wrapped around the two gears. When the motor is working, its power can be transmitted to the driving wheel set 7 via the reducer and the transmission mechanism 6, thereby driving the construction trolley on the outer side of the bridge to move as a whole.
[0026] The active travel wheel set 7 can be composed of two or more travel wheels and a pivot connecting each travel wheel. The two driven travel wheel sets 8 can each be composed of two or more omnidirectional wheels. The two driven travel wheel sets 8 are respectively arranged on the front and rear sides of the active travel wheel set 7 along the forward direction of the trolley body. The arrangement of the two driven travel wheel sets 8 on the front and rear sides of the active travel wheel set 7 facilitates the trolley body to change its direction of movement.
[0027] The adjustment mechanism includes two sets of elastic telescopic guide wheels, each set consisting of two horizontally arranged and oppositely positioned elastic telescopic guide wheels 9. One elastic telescopic guide wheel 9 of each set is mounted on the frame 3, and the other elastic telescopic guide wheel 9 is mounted on the suspension connecting frame 2. The guide wheels 11 of the two elastic telescopic guide wheels 9 can simultaneously abut against the inner and outer walls of the bridge crash barrier 10, respectively. The two sets of elastic telescopic guide wheels are arranged back and forth along the forward direction of the trolley body to adjust the movement direction of the trolley body.
[0028] Specifically, during the process of the construction trolley on the outer side of the bridge traversing a non-direct bridge section, the two elastic telescopic guide wheel sets will contract or expand along with the bridge crash barrier 10. The compressed elastic telescopic guide wheels 9 will directly or indirectly provide lateral force to the frame 3. Since the two driven wheel sets 8 are omnidirectional wheels, this lateral force can cause the trolley body to adjust its movement direction, enabling the trolley body to move adaptively along the extension direction of the bridge crash barrier 10. The two elastic telescopic guide wheel sets can also maintain a certain distance between the frame 3, the suspension connecting frame 2, and the bridge crash barrier 10 to avoid collision accidents. It should be understood that the number of elastic telescopic guide wheel sets can also be three, four, five, or other suitable numbers.
[0029] See now Figure 4 In this embodiment, the elastic telescopic guide wheel 9 includes a guide wheel 11, a guide wheel seat 12, a movable rod 13, a base 14, and a spring 15. The guide wheel 11 is mounted on the front end of the movable rod 13 via the guide wheel seat 12, and the rear section of the movable rod 13 extends into a straight hole formed in the base 14. The spring 15 is sleeved on the movable rod 13, with one end of the spring 15 fixedly connected to the guide wheel seat 12 and the other end fixedly connected to the base 14. When the guide wheel 11 is subjected to a pressure greater than the thrust of the spring 15, the movable rod 13 moves backward, and the length of the movable rod 13 extending into the straight hole of the base 14 increases. During this process, the spring 15 gradually contracts and applies a thrust to the base 14. The thrust eventually acts on the frame 3. When this thrust (lateral thrust) is greater than the resistance to the change in the moving direction of the trolley body, the moving direction of the trolley body gradually changes, so that the trolley body moves adaptively along the extension direction of the bridge anti-collision barrier 10. Of course, the spring 15 also gradually extends at the same time, and the movable rod 13 moves forward.
[0030] Now return Figure 1 In this embodiment, the trolley body also includes a lifting mechanism 16, which is used to cause the active walking wheel set 7 and the two driven walking wheel sets 8 to leave the road surface, so that the construction trolley on the outside of the bridge can stay still, thus avoiding accidental movement of the construction trolley on the outside of the bridge during the construction process.
[0031] The bridge outer construction trolley may also include a first controller arranged on the hanging basket 1 and a second controller arranged on the frame 3. Construction personnel on the hanging basket 1 can use the first controller to control the movement or stopping of the bridge outer construction trolley.
[0032] See now Figure 5 and Figure 6 Specifically, the lifting mechanism 16 may include a plurality of hydraulic cylinders 17 and a hydraulic pump. Each hydraulic cylinder 17 is fixed to the frame 3, and the free end of the piston rod of each hydraulic cylinder 17 is fitted with a rubber support shoe 18. When the piston rod of the hydraulic cylinder 17 is in the extended state, the rubber support shoe 18 can rest against the road surface.
[0033] Now return Figures 1 to 3 In this embodiment, the frame 3 includes a main beam 19, a first upright 20, a second upright 21, and a tie rod 22. One end of the tie rod 22 is fixedly connected to the first upright 20, and the other end is fixedly connected to the main beam 19. The middle portion of the tie rod 22 and the middle portion of the main beam 19 are both fixedly connected to the second upright 21. The first upright 20 is fixedly connected to the main beam 19. The suspension connecting frame 2 is perpendicularly connected to the extension of the main beam 19.
[0034] During single-sided construction on the outer side of the bridge, the construction trolley in this embodiment eliminates the need for multiple deployments (assemblies), effectively improving construction efficiency. It can adaptively move along the extension direction of the bridge crash barrier, eliminating the need for manual adjustment of the forward direction by construction personnel, thus saving manpower. The frame and suspension connection maintain a certain distance from the bridge crash barrier, effectively preventing collisions.
Claims
1. A bridge outside construction trolley, characterized in that: The device includes a trolley body, a hanging basket, and an adjustment mechanism. The trolley body includes a frame, a counterweight, and a traveling mechanism. The hanging basket is connected to the frame via a suspension connecting frame. The counterweight is arranged on the frame. The traveling mechanism includes a power mechanism, a transmission mechanism, a driving wheel set, and two driven wheel sets. The driving wheel set and the two driven wheel sets are both arranged at the bottom of the frame, and the power mechanism is connected to the driving wheel set via the transmission mechanism. Both driven wheel sets are composed of omnidirectional wheels, and are respectively arranged on the front and rear sides of the active wheel set along the forward direction of the trolley body. The adjustment mechanism includes two elastic telescopic guide wheel sets, each consisting of two horizontally arranged and oppositely positioned elastic telescopic guide wheels. One elastic telescopic guide wheel of each elastic telescopic guide wheel set is mounted on the frame, and the other elastic telescopic guide wheel is mounted on the suspension connecting frame. The guide wheels of the two elastic telescopic guide wheels can simultaneously abut against the inner and outer walls of the bridge crash barrier, respectively. The two elastic telescopic guide wheel sets are arranged front and rear along the forward direction of the trolley body to adjust the movement direction of the trolley body.
2. The bridge outside construction trolley according to claim 1, characterized in that: The elastic telescopic guide wheel includes a guide wheel, a guide wheel seat, a movable rod, a base, and a spring; the guide wheel is installed on the front end of the movable rod through the guide wheel seat, and the rear end of the movable rod extends into a straight hole formed in the base; the spring is sleeved on the movable rod, and one end of the spring is fixedly connected to the guide wheel seat, and the other end is fixedly connected to the base; the base is installed on the vehicle frame or the suspension connection frame.
3. The bridge outside construction trolley according to claim 1, characterized in that: The trolley body also includes a lifting mechanism, which is used to cause the active walking wheel set and the two driven walking wheel sets to leave the road surface.
4. The bridge outside construction trolley according to claim 3, characterized in that: The lifting mechanism includes several hydraulic cylinders and a hydraulic pump; each hydraulic cylinder is fixed on the vehicle frame, and a rubber support shoe is fitted on the free end of the piston rod of each hydraulic cylinder. When the piston rod of the hydraulic cylinder is in the extended state, the rubber support shoe can rest against the road surface.
5. A bridge outside construction trolley according to any one of claims 1 to 4, characterized in that: The frame includes a main beam, a first upright, a second upright, and a tie rod. One end of the tie rod is fixedly connected to the first upright, and the other end is fixedly connected to the main beam. The middle part of the tie rod and the middle part of the main beam are both fixedly connected to the second upright. The first upright is fixedly connected to the main beam. The suspension connecting frame is perpendicularly connected to the extension of the main beam.