Tunnel lining trolley splicing equipment
By introducing a rotating and telescopic structure into the tunnel lining trolley splicing equipment, the problem of poor crane stability on uneven ground was solved, achieving stable support for the equipment on different terrains and ensuring the smooth progress of the splicing work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG HERONG MASCH MFG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-15
AI Technical Summary
The existing tunnel lining trolley splicing equipment has poor crane stability, which affects the splicing work, especially on uneven ground.
A splicing device was designed, comprising components such as a crane, connecting blocks, connecting columns, rotating frames, storage slots, springs, locking blocks, and tie rods. Through rotating and telescopic structures, the crane support frame can adapt to different terrains, ensuring stability.
This improved the stability of the crane on uneven ground, ensuring the smooth progress of the tunnel lining trolley splicing work.
Smart Images

Figure CN224242586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lining trolleys, and in particular to a tunnel lining trolley splicing device. Background Technology
[0002] Lining trolleys are specialized equipment used for supporting and pouring lining concrete in tunnel construction. Through modular design, they enable standardized and mechanized construction of tunnel structures and are key equipment for tunnel construction methods such as mining and shield tunneling. Due to the large size and weight of the trolleys, modular lining trolleys require auxiliary equipment for splicing. Cranes can be used for this auxiliary splicing work. Therefore, a tunnel lining trolley splicing device is particularly needed.
[0003] However, most of the existing tunnel lining trolley splicing equipment has poor crane stability. When the ground being hoisted is not flat, the crane is unstable, which will affect the splicing work of the trolley.
[0004] To address the aforementioned issues, a search revealed a patent with publication number CN 110194421 B, which discloses a crane. The patent states that "construction sites or warehouses storing large and heavy materials and components often require short-distance secondary lifting and unloading of materials, structural components, and equipment components during production and operation. Secondary handling can typically be done manually or mechanically. Manual handling is only suitable for small and light items; mechanical handling often uses cranes and forklifts, but these are unsuitable for confined spaces or steep terrain. Furthermore, cranes are not flexible enough in entering and leaving the site, failing to provide timely service to on-site operations, especially when lifting and unloading items on construction sites." This invention is reasonably designed and particularly suitable for... For short-distance hoisting of general, non-heavy objects, this invention can reduce the number of crane shifts and manpower consumption required for outsourcing crane operations. It is compact, flexible, and highly adaptable, occupying minimal construction space during operation. Especially in confined spaces or steep terrain, the crane can easily enter and exit the site and provide timely on-site support. It is also easy to move, requiring only manual labor or common vehicles for towing. The materials, structural components, and equipment components used are all commonly used varieties and categories, allowing for custom design and processing as needed, thus possessing significant potential for widespread adoption. However, the crane's stability is relatively poor; instability during splicing work on uneven surfaces can affect the splicing process.
[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0006] The purpose of this utility model is to provide a tunnel lining trolley splicing device to solve the problem mentioned in the background art that most of the existing tunnel lining trolley splicing devices have poor crane stability. When the ground being hoisted is not flat, the crane is unstable, which will affect the splicing work of the trolley.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a tunnel lining trolley splicing device, including a crane, with connecting blocks fixedly installed on both sides of the crane, connecting columns mounted on the internal bearings of the connecting blocks, a rotating frame fixedly installed on the outer wall of the connecting columns, a storage groove formed on one inner wall of the rotating frame, a first spring fixedly installed inside the storage groove, a locking block fixedly connected to the other end of the first spring, a pull rod fixedly installed on one side of the locking block and the first spring, a connecting rod mounted on the bearing of the other end of the rotating frame, a connecting frame installed on the outer wall of the connecting rod, and a connecting frame on one side of the connecting frame. The connecting frame has a connecting groove, and sliding grooves are formed on the inner walls of both sides. A slider is set inside the sliding groove. A screw is welded to one side surface of the slider, and a nut is threaded to one end of the screw. A support frame is fixedly connected to one side surface of the slider. A slot is formed on one side surface of the support frame. A rotating plate is fixedly connected to one end of the connecting column. A connecting shell is fixedly installed on the upper surface of the rotating plate. A second spring is fixedly installed inside the connecting shell. A moving block is fixedly connected to the other end of the second spring. A limit rod is provided at one end of the moving block. A limit hole is formed on the side surface of the connecting block facing the rotating plate.
[0008] Preferably, the rotating frame forms a rotating structure through connecting columns and connecting blocks.
[0009] Preferably, the card block and the card slot are sized to match, and the card block and the support structure are connected by the card slot to form a locking structure.
[0010] Preferably, the card block is telescopically connected to the rotating frame via a first spring.
[0011] Preferably, the slider and the connecting frame form a sliding structure through a sliding groove, and the screw and the connecting frame form a sliding structure through a connecting groove.
[0012] Preferably, one end of the screw passes through the connecting groove and is threadedly connected to the nut.
[0013] Preferably, the connecting frame forms a rotating structure with the rotating frame via a connecting rod, and the moving block forms a telescopic structure with the connecting shell via a second spring.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This tunnel lining trolley splicing equipment, through the setting of a crane, connecting block, connecting column, rotating frame, storage groove, first spring, locking block, pull rod, connecting rod, connecting frame, connecting groove, slide, slider, screw, nut, support frame, slot, rotating plate, connecting shell, second spring, moving block, limit rod and limit hole, when supporting the crane, pulling the limit rod, the limit rod leaves the limit hole, and the rotating plate can be rotated. The rotating plate can rotate the rotating frame through the connecting column. Then, pulling the pull rod pulls the locking block out of the slot. At this time, the connecting frame can be rotated to make it perpendicular to the ground. Finally, the nut is loosened, and the support frame can be lowered to support the ground. The support frames at both ends can be extended to different lengths to adapt to different terrains. The crane is very stable when performing auxiliary splicing work. Attached Figure Description
[0015] Figure 1 This is a side view of the appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the cooperative structure of the rotating frame and connecting rod of this utility model;
[0017] Figure 3 This is a schematic diagram of the interlocking structure of the connecting block and the connecting column of this utility model;
[0018] Figure 4 This is a schematic diagram of the interaction between the rotating plate and the connecting shell of this utility model;
[0019] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0020] In the diagram: 1. Crane; 2. Connecting block; 3. Connecting column; 4. Rotating frame; 5. Storage slot; 6. First spring; 7. Locking block; 8. Pull rod; 9. Connecting rod; 10. Connecting frame; 11. Connecting slot; 12. Slide groove; 13. Sliding block; 14. Screw; 15. Nut; 16. Support frame; 17. Locking slot; 18. Rotating plate; 19. Connecting shell; 20. Second spring; 21. Moving block; 22. Limiting rod; 23. Limiting hole. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-5This utility model provides a technical solution: a tunnel lining trolley splicing device, including a crane 1, connecting blocks 2 fixedly installed on both sides of the crane 1, connecting columns 3 installed in the internal bearings of the connecting blocks 2, a rotating frame 4 fixedly installed on the outer wall of the connecting columns 3, a storage groove 5 opened on one side inner wall of the rotating frame 4, a first spring 6 fixedly installed inside the storage groove 5, a locking block 7 fixedly connected to the other end of the first spring 6, a pull rod 8 fixedly installed on one side of the locking block 7 and the first spring 6, a connecting rod 9 installed on the bearing of the other end of the rotating frame 4, and a connecting rod 9 installed on the outer wall of the connecting rod 9. A connecting frame 10 has a connecting groove 11 on one side surface and sliding grooves 12 on both inner walls. A slider 13 is installed inside the sliding grooves 12. A screw 14 is welded to one side surface of the slider 13, and a nut 15 is threaded to one end of the screw 14. A support frame 16 is fixedly connected to one side surface of the slider 13, and a slot 17 is formed on one side surface of the support frame 16. A rotating plate 18 is fixedly connected to one end of the connecting column 3. A connecting shell 19 is fixedly installed on the upper surface of the rotating plate 18, and a second spring 20 is fixedly installed inside the connecting shell 19. The other end of the second spring 20 is fixedly connected to a movable block 21. One end of the movable block 21 is provided with a limit rod 22. A limit hole 23 is opened on the side surface of the connecting block 2 facing the rotating plate 18. The crane 1, connecting block 2, connecting column 3, rotating frame 4, storage groove 5, first spring 6, locking block 7, pull rod 8, connecting rod 9, connecting frame 10, connecting groove 11, sliding groove 12, slider 13, screw 14, nut 15, support frame 16, locking groove 17, rotating plate 18, connecting shell 19, second spring 20, movable block 21, limit rod 22 and limit hole 23 are designed. When supporting the crane 1, pull the limit rod 22. When the limit rod 22 leaves the limit hole 23, the rotating plate 18 can be rotated. The rotating plate 18 can rotate the rotating frame 4 through the connecting column 3. After the rotating frame 4 rotates to the appropriate angle, pull the pull rod 8. The pull rod 8 pulls the locking block 7 out of the locking slot 17. At this time, the connecting frame 10 can be rotated to make it perpendicular to the ground. Finally, loosen the nut 15, and the support frame 16 can be lowered and supported on the ground. The support frames 16 at both ends can be extended to different lengths to adapt to different terrains. The crane 1 is very stable when performing auxiliary splicing work.
[0023] Furthermore, the rotating frame 4 forms a rotating structure with the connecting column 3 and the connecting block 2. With the setting of the rotating frame 4, the rotating frame 4 can rotate the support frame 16 to different angles, which can adapt to the support work of different terrains.
[0024] Furthermore, the size of the locking block 7 matches that of the locking slot 17. The locking block 7 and the support frame 16 form a locking structure through the locking slot 17. With the setting of the locking block 7 and the locking slot 17, when the locking block 7 is fixed in the locking slot 17, the connecting frame 10 will be fixed in the rotating frame 4. When the locking block 7 leaves the locking slot 17, the connecting frame 10 can rotate the support frame 16 to an angle perpendicular to the ground, so as to perform support work.
[0025] Furthermore, the locking block 7 forms a telescopic structure with the rotating frame 4 through the first spring 6. With the setting of the first spring 6, when the pull rod 8 is not under force, the elastic force of the first spring 6 can make the locking block 7 lock into the locking slot 17.
[0026] Furthermore, the slider 13 forms a sliding structure with the connecting frame 10 through the slide groove 12, and the screw 14 forms a sliding structure with the connecting frame 10 through the connecting groove 11. With the setting of the slide groove 12 and the slider 13, the slider 13 can carry the support frame 16 to move up and down when sliding in the slide groove 12, thereby adapting to the support work of different terrains.
[0027] Furthermore, one end of the screw 14 passes through the connecting groove 11 and is threadedly connected to the nut 15. Through the setting of the screw 14 and the nut 15, the screw 14 and the nut 15 can fix the position of the slider 13, thereby fixing the position of the support frame 16.
[0028] Furthermore, the connecting frame 10 forms a rotating structure with the rotating frame 4 through the connecting rod 9, and the moving block 21 forms a telescopic structure with the connecting shell 19 through the second spring 20. With the setting of the second spring 20, when the limiting rod 22 is not under force, the elastic force of the second spring 20 can allow the limiting rod 22 to be locked into the limiting hole 23 at the corresponding position.
[0029] Working principle: When supporting the crane 1, pull the limit rod 22. When the limit rod 22 leaves the limit hole 23, the rotating plate 18 can be rotated. The rotating plate 18 can rotate the rotating frame 4 through the connecting column 3. After the rotating frame 4 rotates to the appropriate angle, pull the pull rod 8. The pull rod 8 pulls the locking block 7 out of the locking slot 17. At this time, the connecting frame 10 can be rotated to make it perpendicular to the ground. Finally, loosen the nut 15, and the support frame 16 can be lowered and supported on the ground. The support frames 16 at both ends can be extended to different lengths to adapt to different terrains. The crane 1 is very stable when performing auxiliary splicing work.
[0030] 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 tunnel lining trolley splicing device, comprising a crane (1), characterized in that: Connecting blocks (2) are fixedly installed on both sides of the crane (1). Connecting columns (3) are installed in the bearings inside the connecting blocks (2). Rotating frames (4) are fixedly installed on the outer wall of the connecting columns (3). A storage groove (5) is opened on one side inner wall of the rotating frame (4). A first spring (6) is fixedly installed inside the storage groove (5). A locking block (7) is fixedly connected to the other end of the first spring (6). A pull rod (8) is fixedly installed on one side surface of the locking block (7) and the first spring (6). A connecting rod (9) is installed on the bearing at the other end of the rotating frame (4). A connecting frame (10) is installed on the outer wall of the connecting rod (9). A connecting groove (11) is opened on one side surface of the connecting frame (10). Sliding grooves (12) are opened on both sides inner walls of the connecting frame (10). 12) has a slider (13) inside. A screw (14) is welded to one side surface of the slider (13). A nut (15) is threaded to one end of the screw (14). A support frame (16) is fixedly connected to one side surface of the slider (13). A slot (17) is opened on one side surface of the support frame (16). A rotating plate (18) is fixedly connected to one end of the connecting column (3). A connecting shell (19) is fixedly installed on the upper side surface of the rotating plate (18). A second spring (20) is fixedly installed inside the connecting shell (19). A moving block (21) is fixedly connected to the other end of the second spring (20). A limit rod (22) is provided at one end of the moving block (21). A limit hole (23) is opened on one side surface of the connecting block (2) facing the rotating plate (18).
2. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: The rotating frame (4) forms a rotating structure with the connecting block (2) via the connecting column (3).
3. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: The size of the card block (7) matches that of the card slot (17), and the card block (7) and the support frame (16) form a locking structure through the card slot (17).
4. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: The card block (7) forms a telescopic structure with the rotating frame (4) via the first spring (6).
5. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: The slider (13) forms a sliding structure with the connecting frame (10) through the sliding groove (12), and the screw (14) forms a sliding structure with the connecting frame (10) through the connecting groove (11).
6. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: One end of the screw (14) passes through the connecting groove (11) and is threadedly connected to the nut (15).
7. The tunnel lining trolley splicing equipment according to claim 1, characterized in that: The connecting frame (10) forms a rotating structure with the rotating frame (4) through the connecting rod (9), and the moving block (21) forms a telescopic structure with the connecting shell (19) through the second spring (20).