Concrete spreader outrigger device
By designing a support device that combines support beams and lifting rings, the problem of the concrete placing boom's outriggers not being able to be installed separately was solved, achieving a firm connection with the steel beam lifting lugs, eliminating traditional supports, and improving construction efficiency and positioning accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TIANHAO ENGINEERING DESIGN CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-24
Smart Images

Figure CN224547857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete placing boom technology, specifically a support device for the outriggers of a concrete placing boom. Background Technology
[0002] In prefabricated steel structure buildings, various types of steel truss floor decks (hereinafter referred to as floor decks) are widely used in floor slabs. Based on their own characteristics, floor decks can be exempted from temporary supports or have 1 to 2 linear supports when bearing their own weight, the self-weight of reinforced concrete materials and construction live loads. This support situation can meet the normal construction requirements of floor decks, but cannot meet the layout requirements of concrete placing booms. In addition, steel beam components in steel structures will have no less than 2 lifting lugs on the upper flange of the steel beams to reduce the amount of on-site cutting work. The presence of lifting lugs will strengthen the pin-bolt effect between the steel beams and the floor decks. The steel beam lifting lugs can be retained after the main structure is installed. When considering the placement of a concrete placing boom on a floor deck, the existing technical solution involves setting wooden support plates and blocks for the boom's feet on the upper part of the floor deck formwork; and setting corresponding supports for the boom below the floor deck formwork. These supports are generally composed of traditional beams, columns, and connectors. To increase the overall stability of the full-span scaffolding, scissor bracing is required in both the longitudinal and transverse directions. When the concrete strength of the lower floor slab does not meet the design requirements, it is also necessary to strictly control the boom support feet of the upper and lower floors to be in the same plane. When the floor area is large and the boom position needs to be moved during use, the aforementioned boom supports need to be repeatedly arranged in the preset position. This is not only inconvenient for adjustment and control, but also for installation and positioning, affecting the performance. Improvements are needed. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a concrete placing boom outrigger support device to solve the problems of existing outrigger structures being unable to be installed separately and being difficult to adjust.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a support beam for a concrete placing boom, comprising a support beam, a lifting ring fixedly connected to the upper surface of the support beam, a connecting hole provided inside the lifting ring, a U-shaped frame assembled on the outer surface of the lifting ring, a pin mounted inside the U-shaped frame, a locking nut threaded onto one end of the pin, a connector fixedly connected to the upper end of the U-shaped frame, a support seat rotatably mounted on the outer surface of the connector, a support rod fixedly connected to one side of the support seat, a limit head fixedly connected to the end of the support rod, a support ring slidably mounted on the outer surface of the support rod, a support leg fixedly connected to the upper surface of the support ring, a support plate fixedly connected to one end of the support leg, a positioning disc rotatably mounted on the outer surface of the support plate through a rotating groove, and the positioning disc being connected to the bottom of the placing boom.
[0005] Preferably, a fixing plate is fixedly connected to the upper end of the positioning disk, and the surface of the fixing plate is provided with fixing holes.
[0006] Preferably, a countersunk hole is provided at the middle position of the upper surface of the fixing plate, and the countersunk hole is connected to the inside of the rotating groove.
[0007] Preferably, a combination screw is rotatably installed inside the countersunk hole. The combination screw is threaded onto the upper end of the support plate. A fixing plate is set on the positioning plate. Combined with the combination screw connected by the countersunk hole, it can be combined and connected with the support plate. After being connected and fixed to the base of the fabric placing machine, it can be rotated and flipped, which is conducive to alignment and installation, precise and efficient, and convenient for combined use.
[0008] Preferably, the U-shaped frame has adjusting pads snapped into its inner sides, and the adjusting pads have arc-shaped snapping grooves inside.
[0009] Preferably, one end of the arc-shaped locking groove has an opening, and the opening is locked onto the outer surface of the pin.
[0010] Preferably, the opening has limiting protrusions on both sides inside. The limiting protrusions are elastically engaged with the two sides of the pin. By connecting the adjusting pad inside the U-shaped frame, they can be separately engaged with the pin surface, which helps to fill the internal gap, avoids the movement between the U-shaped frame and the lifting ring and causes shaking, improves the safety and stability of the support and positioning of the fabric placing machine, and facilitates adjustment and use.
[0011] Compared with the prior art, this utility model provides a concrete placing boom outrigger support device, which has the following beneficial effects: Through its design, this support device uses a U-shaped frame installed via lifting rings on the support beam. Combined with the support rings and support plates installed on the side of the support base using structural support rods, it can be assembled and positioned in separate units. This reinforces and stabilizes the concrete placing boom, allowing for a secure connection with the steel beam lifting lugs. This fully utilizes the existing structural capacity of the steel structure, fundamentally eliminating the need for additional concrete placing boom support and reducing the amount of engineering work required. Because steel beam lifting lugs are ubiquitous, the concrete placing boom can be flexibly arranged as needed, without being confined to specific pre-arranged support locations, thus accelerating construction and improving production efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the connection between the support leg and the support plate in this utility model; Figure 4 This is a schematic diagram of the supporting beam in this utility model; Figure 5 This is a schematic diagram of the structure of the adjusting pad in this utility model.
[0013] In the diagram: 1. Support beam, 11. Lifting ring, 12. Connecting hole, 13. U-shaped frame, 14. Pin, 15. Locking nut, 16. Connector, 17. Support base, 18. Support rod, 19. Limiting head, 2. Support ring, 21. Support leg, 22. Support plate, 23. Rotating groove, 24. Positioning plate, 25. Fixing plate, 26. Fixing hole, 27. Countersunk hole, 28. Combination screw, 3. Adjusting pad, 31. Arc-shaped snap groove, 32. Opening, 33. Limiting protrusion. Detailed Implementation
[0014] 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.
[0015] This utility model provides a technical solution: a support device for the outriggers of a concrete placing boom. Please refer to [link / reference needed]. Figure 1 , Figure 3 and Figure 4The system includes a support beam 1, with a lifting ring 11 fixedly connected to its upper surface. The lifting ring 11 has a connecting hole 12 inside. A U-shaped frame 13 is mounted on the outer surface of the lifting ring 11. A pin 14 is mounted inside the U-shaped frame 13, with a locking nut 15 threaded onto one end of the pin 14. This allows for direct assembly with the support beam 1, utilizing the existing structure to support and position the concrete placing boom, facilitating pouring and forming, and ensuring safety and efficiency. A connector 16 is fixedly connected to the upper end of the U-shaped frame 13. A support seat 17 is rotatably mounted on the outer surface of the connector 16. A support rod 18 is fixedly connected to one side of the support seat 17. The end of the support rod 18 is fixedly connected to the limiting head 19. The outer surface of the support rod 18 is slidably installed with a support ring 2. The upper surface of the support ring 2 is fixedly connected with a support leg 21. One end of the support leg 21 is fixedly connected with a support plate 22. The outer surface of the support plate 22 is rotatably installed with a positioning plate 24 through a rotating groove 23. The positioning plate 24 is connected to the bottom of the concrete placing machine and positioned on the base of the concrete placing machine through the four support legs 21. Then, it is connected to the corresponding support seat 17. It can be combined with the lifting rings 11 at different positions on the support beam 1 for reinforcement, thereby supporting and installing the concrete placing machine, which is convenient for adjustment and use, and is safe and efficient.
[0016] Please see Figure 2 and Figure 3 A fixing plate 25 is fixedly connected to the upper end of the positioning plate 24. The surface of the fixing plate 25 has fixing holes 26, and a countersunk hole 27 is located in the middle of the upper surface of the fixing plate 25. The countersunk hole 27 connects to the interior of the rotating groove 23. A combination screw 28 is rotatably installed inside the countersunk hole 27. The combination screw 28 is threaded onto the upper end of the support plate 22. By using the fixing plate on the positioning plate and the combination screw connected by the countersunk hole, it can be combined and connected with the support plate. After being connected and fixed to the concrete placing boom base, it can rotate and flip, facilitating precise and efficient installation and easy combination use. The fixing plate 25 can be fixed to the base of the concrete placing boom using bolts connected through the fixing holes 26, which facilitates... Positioning and installation allow the support plate 22 and outriggers 21 to be connected to the base, forming a support structure. The support plate 22 can rotate within the rotating shaft 23, thereby adjusting the angle of the outriggers 21 to facilitate alignment with the lifting ring 11 on the support beam 1. This also facilitates the alignment and installation of the support base 17 and the U-shaped frame 13. After the U-shaped frame 13 and the lifting ring 1 are connected sideways, the bottom position is stably supported on the upper surface of the support beam 1, preventing overturning and misalignment, improving connection stability, and facilitating installation and use. This allows for a firm connection with the steel beam lifting lugs, fully utilizing the capabilities of the already formed main steel structure. This fundamentally eliminates the need for concrete placing boom supports, reducing the amount of engineering work required for support measures. Because steel beam lifting lugs are ubiquitous, the concrete placing boom can be flexibly arranged as needed, without being restricted to specific pre-arranged support positions, thus accelerating construction speed and improving production efficiency.
[0017] Please see Figure 1 , Figure 2 and Figure 5 The U-shaped frame 13 has adjusting pads 3 on both sides inside. The adjusting pads 3 have arc-shaped locking grooves 31 inside, with an opening 32 at one end. The opening 32 engages with the outer surface of the pin 14. Limiting protrusions 33 are located on both sides inside the opening 32, elastically engaging with both sides of the pin 14. By connecting the adjusting pads inside the U-shaped frame, they can be separately engaged with the pin surface, facilitating the filling of internal gaps and preventing movement between the U-shaped frame and the lifting ring, thus improving the safety and stability of the fabric placing machine's support positioning and facilitating adjustment and use. With the opening 33 at both ends of the pin 14, the adjusting pad 3 can be inserted into the gap between the U-shaped frame 14 and the lifting ring 11. This provides support and reinforcement, prevents movement, improves connection stability, and ensures the stability of the support and reinforcement. This prevents the pin from moving out of its hole position and ensures that the pin always remains in the hole position, allowing the load of the placing boom to be stably transferred to the steel beam through the lifting lug. This avoids safety hazards such as leg swaying and placing boom overturning caused by loose pins. Especially when the placing boom is moving or operating, it can effectively resist the influence of external forces such as vibration and impact on the connection node.
[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A support device for a concrete placing boom leg, comprising a support beam (1), wherein a lifting ring (11) is fixedly connected to the upper surface of the support beam (1), and the lifting ring (11) has a connecting hole (12) inside, characterized in that: A U-shaped frame (13) is assembled on the outer surface of the lifting ring (11). A pin (14) is assembled inside the U-shaped frame (13). A locking nut (15) is threaded onto one end of the pin (14). A connector (16) is fixedly connected to the upper end of the U-shaped frame (13). A support seat (17) is rotatably mounted on the outer surface of the connector (16). A support rod (18) is fixedly connected to one side of the support seat (17). A limit head (19) is fixedly connected to the end of the support rod (18). A support ring (2) is slidably mounted on the outer surface of the support rod (18). A support leg (21) is fixedly connected to the upper surface of the support ring (2). A support plate (22) is fixedly connected to one end of the support leg (21). A positioning plate (24) is rotatably mounted on the outer surface of the support plate (22) through a rotating groove (23). The positioning plate (24) is connected to the bottom of the fabric placing machine.
2. The concrete placing boom outrigger support device according to claim 1, characterized in that: The upper end of the positioning plate (24) is fixedly connected to a fixing plate (25), and the surface of the fixing plate (25) is provided with fixing holes (26).
3. The concrete placing boom outrigger support device according to claim 2, characterized in that: The upper surface of the fixing plate (25) is provided with a countersunk hole (27) in the middle position, and the countersunk hole (27) is connected to the inside of the rotating groove (23).
4. The concrete placing boom outrigger support device according to claim 3, characterized in that: A combination screw (28) is rotatably installed inside the countersunk hole (27), and the combination screw (28) is threaded onto the upper end of the support plate (22).
5. The concrete placing boom outrigger support device according to claim 1, characterized in that: The U-shaped frame (13) has an adjustment pad (3) attached to both sides inside, and the adjustment pad (3) has an arc-shaped locking groove (31) inside.
6. The concrete placing boom outrigger support device according to claim 5, characterized in that: One end of the arc-shaped snap-fit groove (31) is provided with an opening (32), and the opening (32) is snapped onto the outer surface of the pin (14).
7. A concrete placing boom outrigger support device according to claim 6, characterized in that: The opening (32) has limiting protrusions (33) on both sides inside, and the limiting protrusions (33) are elastically engaged with the two sides of the pin (14).