Modular double beam crane bridge
Patent Information
- Application Number
- CN202522393975.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-11-12
AI Technical Summary
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This modular double-girder crane bridge has the following advantages:
Smart Images

Figure CN224740690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane bridge technology, specifically a modular double-beam crane bridge. Background Technology
[0002] Crane bridges are a general term for bridge cranes and gantry cranes. They are core components of lifting machinery, and their structure is mainly composed of metal components such as main beams and end beams. They are installed above workshops and warehouses. Double-beam crane bridges consist of two main beams and end beams, making the structure more stable. In the prior art, the patent with authorization publication number CN 221070701 U discloses a modular double-beam crane bridge, which includes two end beams and a main beam between the two end beams. The end beams and the main beams are at the same height and are fixed to each other by flanges. There are two flanges at each location, which are fixed to the side surface of the end beam and the end face of the main beam, respectively. The three-in-one reducer that works with the end beam is an external type, located on the outside of the end beam. The towing cable that works with the three-in-one reducer is located below the three-in-one reducer. The advantages are: compared with the prior art, the main beam of this utility model is located between the two end beams, and the length of the main beam itself is shortened, which facilitates installation. Different construction environments have different spaces. The overall length of the main beam and end beam in the device is fixed, which makes it impossible for the device itself to make corresponding changes to the main beam and end beam according to changes in the external space, thereby reducing the applicability of the device itself. Therefore, we propose a modular double beam crane bridge. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a modular double-beam crane bridge. The device adopts a modular assembly design and, combined with splicing and fixing components, can change the length of the main beam and end beam of the double-beam crane bridge according to changes in the usage environment, thereby improving the applicability of the double-beam crane bridge itself and effectively solving the problems in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular double-beam crane bridge frame, including end beam seats, there are six end beam seats, three longitudinally adjacent end beam seats form a group, two groups of end beam seats are symmetrically distributed laterally, and two groups of longitudinally symmetrically distributed main beam seats are provided between the two groups of end beam seats, each group of main beam seats is composed of seven laterally adjacent main beam seats, and also includes an assembly and fixing mechanism.
[0005] The assembly and fixing mechanism includes slots, angle iron seats, locking components, and main end beam connecting components. The slots are vertically symmetrically opened on the front and rear sides of the end beam seats and the left and right sides of the main beam seats. An angle iron seat is inserted between each pair of horizontally adjacent slots. Locking components are provided between the end beam seats and the main beam seats and the horizontally adjacent angle iron seats. The main end beam connecting components are installed between the end beam seats and the main beam seats. This device adopts a modular assembly design. Combined with the splicing and fixing components, the length of the main beam and end beam of the double beam crane bridge can be changed according to the changes in the use environment, thereby improving the applicability of the double beam crane bridge itself.
[0006] Furthermore, the assembly and fixing mechanism also includes arc-shaped chamfers, which are respectively opened on the outer edge of the angle iron seat. By reducing the initial insertion diameter of the angle iron seat, it is convenient for the angle iron seat in the modular double-girder crane bridge to be inserted into the corresponding slot.
[0007] Furthermore, the locking assembly includes a through hole one, a through hole two, and a plug rod. The through hole two is respectively opened at the front and rear ends of the end beam seat and the left and right ends of the main beam seat. The front and rear ends of the angle iron seat in the end beam seat and the left and right ends of the angle iron seat in the main beam seat are each provided with a through hole one. A plug rod is inserted between the through hole two and the through hole one vertically adjacent to its upper and lower ends, thereby limiting the splicing between two adjacent end beam seats and two main beam seats in the modular double beam crane bridge frame.
[0008] Furthermore, the locking assembly also includes slots and rubber plugs. The slots are respectively opened at the front and rear ends of the upper side of the end beam seat and the left and right ends of the upper side of the main beam seat. Rubber plugs are engaged inside the slots. The rubber plugs are installed in conjunction with the vertically adjacent plugs to limit the upward movement of the plugs in the modular double-girder crane bridge frame.
[0009] Furthermore, the main end beam connecting assembly includes a rectangular groove, a connecting seat, a threaded hole, and a bolt. The rectangular grooves are symmetrically opened laterally on the lower ends of the front and rear sides of the main beam seat. Connecting seats are inserted into the two rectangular grooves on the left side of the leftmost main beam seat and the two rectangular grooves on the right side of the rightmost main beam seat in both sets of main beam seats. Bolts are symmetrically distributed laterally inserted into the bottom circular holes of the connecting seats. Threaded holes are evenly distributed on the upper side of the end beam seat. The lower ends of the bolts are threaded to the vertically adjacent threaded holes, thus splicing and fixing the main beam and end beam in the modular double beam crane bridge.
[0010] Furthermore, the main end beam connecting assembly also includes threaded hole two, threaded hole three, reinforcing seat and bolt two. The threaded holes two are evenly opened longitudinally on the upper ends of the left and right sides of the end beam seat. The threaded holes three are symmetrically distributed longitudinally on the lower ends of the left and right sides of the main beam seat. Reinforcing seats are symmetrically distributed longitudinally between the main beam seat located outside the connecting seat and the vertically adjacent end beam seat. Bolt two is inserted into the circular holes two at the upper and lower ends of the middle part of the reinforcing seat. The end of the upper bolt two near the horizontally adjacent end beam seat is threaded to the horizontally adjacent threaded hole three. The end of the lower bolt two near the horizontally adjacent end beam seat is threaded to the horizontally adjacent threaded hole two. This splices and reinforces the main beam and end beam in the modular double beam crane bridge.
[0011] Furthermore, the outer surfaces of both the end beam seats and the main beam seats are coated with epoxy resin to improve the corrosion resistance of the inner end beam seats and main beam seats of the modular double-beam crane bridge.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This modular double-girder crane bridge has the following advantages:
[0013] When using a modular double-girder crane bridge, the device adopts a modular assembly design. Combined with splicing and fixing components, and through plug-in locking and bolt locking, the length of the main beam and end beam of the double-girder crane bridge can be changed according to changes in the usage environment, thereby improving the applicability of the double-girder crane bridge itself. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0016] Figure 3 This is a cross-sectional structural diagram of the main beam seat of this utility model;
[0017] Figure 4 This is an enlarged structural diagram of point A in this utility model;
[0018] Figure 5 This is an enlarged structural diagram of section B of the present invention.
[0019] In the diagram: 1. End beam seat, 2. Main beam seat, 3. Assembly and fixing mechanism, 31. Slot, 32. Angle iron seat, 33. Chamfer, 34. Locking assembly, 341. Through hole one, 342. Through hole two, 343. Insert rod, 344. Slot, 345. Rubber plug, 35. Main end beam connecting assembly, 351. Rectangular groove, 352. Connecting seat, 353. Threaded hole one, 354. Bolt one, 355. Threaded hole two, 356. Threaded hole three, 357. Reinforcing seat, 358. Bolt two. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5 This embodiment provides a technical solution: a modular double-girder crane bridge, including end beam seats 1, there are six end beam seats 1, three longitudinally adjacent end beam seats 1 form a group, two groups of end beam seats 1 are symmetrically distributed laterally, and two groups of longitudinally symmetrically distributed main beam seats 2 are provided between the two groups of end beam seats 1, each group of main beam seats 2 is composed of seven laterally adjacent main beam seats 2, the end beam seats 1 and main beam seats 2 in the modular double-girder crane bridge have the same size specifications, and also includes an assembly and fixing mechanism 3;
[0022] The assembly and fixing mechanism 3 includes slots 31, angle iron seats 32, locking components 34, and main end beam connecting components 35. Slots 31 are vertically symmetrically located on the front and rear sides of the end beam seat 1 and the left and right sides of the main beam seat 2. An angle iron seat 32 is inserted between each pair of horizontally adjacent slots 31. Locking components 34 are provided between the end beam seat 1 and the main beam seat 2 and the horizontally adjacent angle iron seats 32. The main end beam connecting components 35 are installed between the end beam seat 1 and the main beam seat 2. The assembly and fixing mechanism 3 also includes arc-shaped chamfers 33, which are respectively located on the outer edge of the angle iron seats 32. The locking components 34 include a first through hole 341, a second through hole 342, and a plug rod 343. The second through hole 342 is respectively located at the front and rear ends of the end beam seat 1 and the left and right sides of the main beam seat 2. At both ends, the front and rear ends of the angle iron seat 32 located in the end beam seat 1 and the left and right ends of the angle iron seat 32 located in the main beam seat 2 are provided with through holes 341. A plug rod 343 is inserted between each through hole 342 and the vertically adjacent through hole 341 at its upper and lower ends. The locking assembly 34 also includes slots 344 and rubber plugs 345. The slots 344 are respectively opened at the front and rear ends of the upper side of the end beam seat 1 and the left and right ends of the upper side of the main beam seat 2. Each slot 344 is fitted with a rubber plug 345. The rubber plugs 345 are installed in conjunction with the vertically adjacent plug rods 343. When assembling the modular double beam crane bridge frame, the workers can select an appropriate number of end beam seats 1 and main beam seats 2 according to the layout environment of the double beam crane bridge frame. Then the workers will assemble the end beam seats. The assembly is divided into two groups, with the same number of end beam seats 1 in each group. When assembling and fixing two longitudinally adjacent end beam seats 1, the worker first fully inserts the angle iron seat 32 into the upper and lower slots 31 on the rear side of the front end beam seat 1. The initial insertion diameter between the angle iron seat 32 and the slot 31 is reduced by the arc-shaped chamfer 33 of the angle iron seat 32, making it easier to insert the angle iron seat 32 into the corresponding slot 31. Then, the worker inserts the insertion rod 343 vertically from top to bottom along the slot 344 at the upper rear end of the front end beam seat 1, so that the insertion rod 343 is inserted into the vertically adjacent through hole 1 341 and through hole 2 342, thereby realizing the connection and fixation between the front end beam seat 1 and the angle iron seat 32. Then, the worker inserts the rubber plug 345 from top to bottom. The insertion rod 343 is inserted into the slot 344, thus limiting its upward movement. Then, the worker inserts the upper and lower slots 31 on the front side of the rear end beam seat 1 into the angle iron seat 32 in the front end beam seat 1, and fixes the angle iron seat 32 using the same principle. This achieves the splicing and fixing between the front and rear end beam seats 1. Subsequently, the worker uses the same principle to sequentially splice and fix the end beam seats 1 in both sets of end beam seats 1. Simultaneously, the main beam seat 2 is divided into two groups, with the same number of main beam seats 2 in each group. Following the splicing method for the end beam seats 1 in each group of end beam seats 1, the worker splices and fixes the main beam seats 2 in each group of main beam seats 2 in the same way, thus achieving the splicing and fixing of the end beams and main beams of the double-girder crane bridge.This device adopts a modular assembly design, combined with splicing and fixing components, which allows for adjustments to the lengths of the main beams and end beams of the double-girder crane bridge according to changes in the usage environment, thereby increasing the applicability of the double-girder crane bridge layout.
[0023] The main end beam connecting assembly 35 includes rectangular grooves 351, connecting seats 352, threaded holes 353, and bolts 354. The rectangular grooves 351 are symmetrically opened laterally on the lower ends of the front and rear sides of the main beam seat 2. Connecting seats 352 are inserted into the two rectangular grooves 351 on the left side of the leftmost main beam seat 2 and the two rectangular grooves 351 on the right side of the rightmost main beam seat 2. Bolts 354 are symmetrically distributed laterally in the bottom circular holes of each connecting seat 352. Threaded holes 353 are evenly distributed on the upper side of each end beam seat 1. The lower ends of the bolts 354 are threaded into the vertically adjacent threaded holes 353. The main end beam connecting assembly 35 also includes threaded holes 355, 356, reinforcing seats 357, and bolts 358. Threaded holes 355 are evenly spaced longitudinally on the upper ends of the left and right sides of the end beam seat 1. Threaded holes 356 are symmetrically distributed longitudinally on the lower ends of both sides of the main beam seat 2. Reinforcing seats 357 are symmetrically distributed longitudinally between the main beam seat 2 located outside the connecting seat 352 and the vertically adjacent end beam seat 1. Bolts 358 are inserted into the two circular holes at the upper and lower ends of the middle of the reinforcing seat 357. The upper end of the bolt 358, near the horizontally adjacent end beam seat 1, is connected to the horizontally adjacent threaded hole. Hole 356 is threaded. The lower end of bolt 358, near the horizontally adjacent end beam seat 1, is threaded to the horizontally adjacent threaded hole 355. When splicing and fixing the end beam to the main beam, first, each set of end beam seats 1 is installed and fixed to the external environment. Then, two sets of main beam seats 2 are longitudinally symmetrically arranged between the upper sides of the two sets of end beam seats 1. Next, the worker inserts the connecting seat 352 into the rectangular groove 351 vertically adjacent to each set of end beam seats 1. Then, the worker aligns the lower end of bolt 354 with the vertically adjacent threaded hole 353 and rotates bolt 354. Bolt 354 passes through the vertically adjacent threaded hole 355. The threaded connection between 353 achieves the initial connection and fixation between each set of end beam seats 1 and each set of main beam seats 2. Then, the workers place the reinforcing seat 357 on the threaded holes 355 and 356 at the contact points between each set of end beam seats 1 and each set of main beam seats 2. The bolt 358 is horizontally aligned with the corresponding threaded hole 355 or threaded hole 356. Then, the bolt 358 is rotated to make it threadedly connected and fixed with the corresponding threaded hole 355 or threaded hole 356, thereby reinforcing the contact and fixing points between each set of end beam seats 1 and each set of main beam seats 2 and improving the overall connection firmness of the double beam crane bridge frame.
[0024] Both the outer surfaces of the end beam seat 1 and the main beam seat 2 are coated with epoxy resin. The cured epoxy resin has a stable benzene ring structure and can withstand the erosion of acids, alkalis and organic solvents. The epoxy resin coating improves the corrosion resistance of the end beam seat 1 and the main beam seat 2.
[0025] The working principle of the modular double-girder crane bridge provided by this utility model is as follows: The end beam seats 1 and main beam seats 2 of the modular double-girder crane bridge are of the same size and specifications. When assembling the modular double-girder crane bridge, the workers can select an appropriate number of end beam seats 1 and main beam seats 2 according to the layout environment of the double-girder crane bridge. Then, the workers divide the end beam seats 1 into two groups, with the same number of end beam seats 1 in each group. When assembling and fixing two longitudinally adjacent end beam seats 1, the workers first fully insert the angle iron seat 32 into the upper and lower slots 31 on the rear side of the front end beam seat 1. The initial insertion interface diameter between the angle iron seat 32 and the slot 31 is reduced by the arc chamfer 33 of the angle iron seat 32, which makes it easier to insert the angle iron seat 32 into the corresponding slot. 31. Subsequently, the worker vertically inserts the insertion rod 343 from top to bottom along the slot 344 at the upper rear end of the front end beam seat 1, so that the insertion rod 343 is inserted into the vertically adjacent through hole 1 341 and through hole 2 342, thereby realizing the connection and fixation between the front end beam seat 1 and the angle iron seat 32. Then, the worker inserts the rubber plug 345 from top to bottom into the slot 344, thereby limiting the upward movement of the insertion rod 343. Then, the worker inserts the upper and lower slots 31 on the front side of the rear end beam seat 1 into the angle iron seat 32 in the front end beam seat 1, and fixes the insertion of the angle iron seat 32 by means of the principle, thereby realizing the splicing and fixation between the front and rear end beam seats 1. Then, the worker uses the same principle to fix the end beam seats in the two sets of end beam seats 1. 1. The main beam seats 2 are sequentially spliced and fixed. The main beam seats 2 are divided into two groups, with the same number of main beam seats 2 in each group. Following the splicing method for the end beam seats 1 in each group, the workers splice and fix the main beam seats 2 in each group in the same manner, thus achieving the splicing and fixing of the end beams and main beams of the double-beam crane bridge. The lengths of the end beams and main beams of this double-beam crane bridge can be varied according to the installation environment, making it convenient to use. When splicing and fixing the end beams and main beams, first, each group of end beam seats 1 is installed and fixed to the external environment. Then, the two groups of main beam seats 2 are longitudinally symmetrically arranged between the upper sides of the two groups of end beam seats 1. Then, the workers insert the connecting seat 352 into the rectangular groove 351 vertically adjacent to each group of end beam seats 1. The workers then aligned the lower end of bolt 354 with the vertically adjacent threaded hole 353 and rotated bolt 354. Bolt 354, through its threaded connection with the vertically adjacent threaded hole 353, achieved initial connection and fixation between each set of end beam seats 1 and each set of main beam seats 2. Next, the workers placed reinforcing seat 357 onto the threaded holes 355 and 356 at the contact points between each set of end beam seats 1 and each set of main beam seats 2. The workers then horizontally aligned the bolt 358 with the corresponding threaded hole 355 or threaded hole 356, and rotated bolt 358 to achieve threaded connection and fixation with the corresponding threaded hole 355 or threaded hole 356, thereby reinforcing the contact and fixing points between each set of end beam seats 1 and each set of main beam seats 2.To improve the overall connection strength of the double-girder crane bridge frame, both the outer surfaces of end beam seat 1 and main beam seat 2 are coated with epoxy resin. The cured epoxy resin has a stable benzene ring structure, which can resist the erosion of acids, alkalis, and organic solvents. This epoxy resin coating enhances the corrosion resistance of end beam seat 1 and main beam seat 2.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A modular double-girder crane bridge, comprising end beam seats (1), wherein there are six end beam seats (1), three longitudinally adjacent end beam seats (1) form a group, two groups of end beam seats (1) are symmetrically distributed laterally, and two groups of longitudinally symmetrically distributed main beam seats (2) are provided between the two groups of end beam seats (1), each group of main beam seats (2) is composed of seven laterally adjacent main beam seats (2), characterized in that: It also includes assembly and fixing mechanisms (3); The assembly and fixing mechanism (3) includes a slot (31), an angle iron seat (32), a locking component (34), and a main end beam connecting component (35). The slots (31) are vertically symmetrically opened on the front and rear sides of the end beam seat (1) and the left and right sides of the main beam seat (2). An angle iron seat (32) is inserted between two horizontally adjacent slots (31). Locking components (34) are provided between the end beam seat (1) and the main beam seat (2) and the horizontally adjacent angle iron seat (32). The main end beam connecting component (35) is installed between the end beam seat (1) and the main beam seat (2).
2. A modular two-girder bridge for a bridge crane according to claim 1, characterized in that: The assembly and fixing mechanism (3) also includes an arc chamfer (33), which is respectively opened on the outer edge of the angle iron seat (32).
3. A modular double-girder crane bridge according to claim 1, characterized in that: The locking assembly (34) includes a through hole one (341), a through hole two (342), and a plug rod (343). The through hole two (342) is opened at the front and rear ends of the end beam seat (1) and the left and right ends of the main beam seat (2). The front and rear ends of the angle iron seat (32) in the end beam seat (1) and the left and right ends of the angle iron seat (32) in the main beam seat (2) are all provided with through holes one (341). A plug rod (343) is inserted between the through hole two (342) and the through hole one (341) that is vertically adjacent to its upper and lower ends.
4. A modular double-girder crane bridge according to claim 3, characterized in that: The locking assembly (34) also includes a slot (344) and a rubber plug (345). The slots (344) are respectively opened at the front and rear ends of the upper side of the end beam seat (1) and the left and right ends of the upper side of the main beam seat (2). The rubber plugs (345) are all engaged inside the slots (344), and the rubber plugs (345) are all installed in conjunction with the vertically adjacent inserts (343).
5. A modular double-girder crane bridge according to claim 1, characterized in that: The main end beam connecting assembly (35) includes a rectangular groove (351), a connecting seat (352), a threaded hole (353), and a bolt (354). The rectangular groove (351) is symmetrically opened laterally on the lower ends of the front and rear sides of the main beam seat (2). The connecting seats (352) are inserted into the two rectangular grooves (351) on the left side of the leftmost main beam seat (2) and the two rectangular grooves (351) on the right side of the rightmost main beam seat (2) in the two sets of main beam seats (2). The bolts (354) are symmetrically distributed laterally in the bottom circular hole of the connecting seat (352). The upper side of the end beam seat (1) is provided with evenly distributed threaded holes (353). The lower end of the bolts (354) is threadedly connected to the vertically adjacent threaded hole (353).
6. A modular double-girder crane bridge according to claim 5, characterized in that: The main end beam connecting assembly (35) also includes threaded hole two (355), threaded hole three (356), reinforcing seat (357) and bolt two (358). The threaded hole two (355) is evenly opened longitudinally on the upper ends of the left and right sides of the end beam seat (1). The lower ends of the left and right sides of the main beam seat (2) are provided with threaded holes three (356) distributed longitudinally. The main beam seat (2) located outside the connecting seat (352) and the vertically adjacent end beam seat (1) are both equipped with reinforcing seats (357) distributed longitudinally. Bolt two (358) is inserted into the two round holes at the upper and lower ends of the middle part of the reinforcing seat (357). The upper bolt two (358) is threaded to the horizontally adjacent threaded hole three (356) at the end closest to the horizontally adjacent end beam seat (1). The lower bolt two (358) is threaded to the horizontally adjacent threaded hole two (355) at the end closest to the horizontally adjacent end beam seat (1).
7. A modular two-beam crane bridge according to claim 1, characterized in that: Both the outer surfaces of the end beam seat (1) and the main beam seat (2) are coated with epoxy resin.
Citation Information
Patent Citations
Modular double-beam crane bridge
CN221070701U