A novel high-altitude installation auxiliary device for bolt grid structure

Abstract

The utility model discloses a novel bolt net rack structure high altitude installation auxiliary device relates to the building engineering technical field, including holding pole, universal joint, mounting seat, double lug formula chain and chain fixed establishment, the utility model discloses a adjustable length's holding pole and one -way locking's chain fixed establishment are set up through the universal joint, and this device will traditional need many people cooperation, manual support's bar piece alignment work, changes into can by single person independent completion's stable operation. The worker controls holding pole through lever principle, and utilizes the multi -angle flexibility of universal joint, can accurate, stable space position and posture fine adjustment of bar piece that is tied on the device to the fast alignment of bolt ball screw hole. This not only significantly reduced the requirement to the number and experience of workers, more fundamentally solved the core problem of poor stability of manual support, difficult control of alignment accuracy, greatly improved the installation efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a novel auxiliary device for high-altitude installation of bolted space frame structures. Background Technology

[0002] Currently, the "high-altitude bulk assembly method" is commonly used in the high-altitude installation of bolted space frame structures. The typical operation of this method is as follows: First, using lifting equipment, the bolt ball joints and members are hoisted one by one to a high-altitude scaffold or operating platform near the designed location. Then, two or more workers work together, manually picking up the members and simultaneously adjusting the spatial position and angle of both ends of the members to align the sleeve holes at both ends of the members with the corresponding bolt holes on the two bolt balls. After basic alignment, the worker uses one hand or body to support the member to maintain the alignment, while using a wrench to initially screw the bolts in. The entire process is not only time-consuming and physically demanding, but also extremely difficult to control in terms of alignment accuracy. Especially when manually supporting the members, there are problems of poor stability, low safety, and low efficiency. Utility Model Content

[0003] This utility model provides a novel auxiliary device for high-altitude installation of bolted space frame structures, which solves the technical problems of poor stability, low safety, and low efficiency in the prior art where manual support of poles is used.

[0004] To solve the above-mentioned technical problems, this utility model provides a novel high-altitude installation auxiliary device for bolted space frame structures, including a gripping rod, a universal joint, a mounting base, a double-ear chain, and a chain fixing mechanism. The two ends of the universal joint are respectively connected to the front end of the gripping rod and the mounting base. One end of the double-ear chain is connected to the mounting base, and the other end of the double-ear chain is connected to the mounting base via the chain fixing mechanism. The chain fixing mechanism includes a detachable sliding cover, the inner wall of which has a sliding groove. The side of the mounting base has a limiting protrusion matching the sliding groove. The mounting base has a limiting module that restricts the movement of the detachable sliding cover, and the detachable sliding cover has a locking tooth module that restricts the movement of the double-ear chain.

[0005] Preferably, the pin of the double-loop chain is movably mounted between the inner side of the detachable sliding cover and the edge of the mounting base.

[0006] Preferably, the mounting base includes a connecting part and two symmetrical side plates, one side of each side plate having a V-shaped opening, and the two side plates are fixed by the connecting part.

[0007] Preferably, the chain tooth module includes chain teeth and a first return spring; the detachable sliding cover has a movable groove for the chain teeth to move, the chain teeth have a guide post, the first return spring is sleeved on the guide post, and the side of the chain teeth has an arc-shaped groove that matches the double-ear chain.

[0008] Preferably, the limiting module includes a mounting housing, a second return spring, and two limiting pins; the mounting housing is disposed on the mounting base, the two limiting pins are respectively disposed on both sides of the mounting housing, and the second return spring is disposed between the two limiting pins.

[0009] Preferably, the end of the limiting pin is provided with a chamfer.

[0010] Preferably, the side of the mounting base is provided with a through groove that matches the limiting pin.

[0011] Preferably, the grip rod is a multi-section telescopic rod.

[0012] Preferably, the free end of the double-loop chain is provided with a handle or a traction rope.

[0013] Preferably, the top of the guide post is provided with a pull ring.

[0014] Compared with related technologies, the novel bolted space frame structure high-altitude installation auxiliary device provided by this utility model has the following beneficial effects:

[0015] This utility model provides a novel high-altitude installation auxiliary device for bolted space frame structures. By incorporating universal joints, adjustable-length gripping rods, and a one-way locking chain fixing mechanism, this device transforms the traditional manual alignment work requiring multiple people to perform into a stable operation that can be completed independently by a single person. The worker manipulates the gripping rods using leverage principles and utilizes the multi-angle flexibility of the universal joints to precisely and stably adjust the spatial position and posture of the rods bound to the device, quickly aligning them with the ball screw holes of the bolts. This not only significantly reduces the number of workers and their experience requirements but also fundamentally solves the core problems of poor stability and difficulty in controlling alignment accuracy with manual support, greatly improving installation efficiency and safety.

[0016] By employing a double-hook chain with an integrated one-way locking mechanism, workers simply need to wrap the chain around the rod and tighten the traction rope or the free end of the chain to securely bind and suspend the rod on the device under one-way locking action. This process is quick and reliable, and the resulting connection has sufficient mechanical strength to withstand the weight of the rod and the forces generated by fine-tuning operations, ensuring that the rod will not accidentally loosen during the entire alignment and installation process. This provides a stable foundation for subsequent hand-operated bolt tightening, completely freeing the operator's hands. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting base structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the chain fixing mechanism of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the chain fixing mechanism of this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic cross-sectional view of the chain fixing mechanism of this utility model. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the limiting module structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0024] The following are the labeling elements in the diagram: 1. Grip bar; 2. Universal joint; 3. Mounting base; 31. Connecting part; 32. Side plate; 33. V-shaped opening; 4. Double-ear chain; 41. Pin; 42. Grip; 5. Chain fixing mechanism; 51. Removable sliding cover; 52. Slide groove; 53. Limiting protrusion; 54. Limiting module; 541. Mounting housing; 542. Limiting pin; 543. Second return spring; 55. Tooth module; 551. Movable groove; 552. Guide post; 553. First return spring; 554. Chain tooth; 6. Traction rope. Detailed Implementation

[0025] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1 to 6 As shown, this embodiment provides a novel high-altitude installation auxiliary device for bolted space frame structures, including a gripping rod 1, a universal joint 2, a mounting base 3, a double-ear chain 4, and a chain fixing mechanism 5.

[0028] The gripping rod 1 adopts a multi-section lockable telescopic rod structure, which can be made of aluminum alloy, making it lightweight and strong. The worker can adjust its length as needed.

[0029] One end of the universal joint 2 is fixedly connected to the front end of the gripping rod 1 via a thread or quick-release connector, and the other end is connected to the mounting base 3 in the same way. The universal joint 2 is a coupling structure or a ball joint structure.

[0030] The mounting base 3 includes a connecting part 31 and two symmetrical side plates 32. The two side plates 32 are welded or bolted together via the connecting part 31. Each side plate 32 has a V-shaped opening 33 machined at its front end, which facilitates supporting or limiting the space frame members. A limiting protrusion 53 is provided on the inner side of the two side plates 32 near the rear. A limiting module 54 is installed on the outer side of one of the side plates 32.

[0031] One end of the double-ear chain 4 is movably hinged between the two side plates 32 of the mounting base 3 via a pin 41. The free end of the double-ear chain 4 is provided with a handle 42 for easy gripping.

[0032] The chain fixing mechanism 5 mainly includes a detachable sliding cover 51. This detachable sliding cover 51 is generally U-shaped and can be slidably inserted into the side of the mounting base 3. Longitudinal sliding grooves 52 are formed on both sides of its inner wall. These grooves 52 cooperate with limiting protrusions 53 on the side plate 32 to guide the sliding path of the detachable sliding cover 51 and prevent it from falling out. A locking tooth module 55 is integrated on the detachable sliding cover 51.

[0033] The chain tooth module 55 is disposed on the top of the detachable sliding cover 51. Specifically, a movable groove 551 is formed on the detachable sliding cover 51. A chain tooth 554 is placed in the movable groove 551 and can move up and down. The lower side of the chain tooth 554 is machined with an arc-shaped groove that matches the shape of the double-lug chain link 4. A guide post 552 is fixed on the chain tooth 554, and the guide post 552 passes upward through the hole at the top of the movable groove 551, with a pull ring at its top. A first return spring 553 is sleeved on the guide post 552, with its two ends abutting against the top of the chain tooth 554 and the upper wall of the movable groove 551, respectively, providing a downward normal force for the chain tooth 554.

[0034] The limiting module 54 includes a mounting housing 541 fixed to the side plate 32 of the mounting base 3. Two limiting pins 542 are horizontally arranged inside the mounting housing 541, extending from both sides of the housing. A second return spring 543 abuts against the inner ends of the two limiting pins 542, causing them to tend to extend outwards. The outer ends of the limiting pins 542 are chamfered. A through slot is formed on the side plate 32 of the mounting base 3 corresponding to the position of the limiting pins 542, allowing them to extend. When the removable sliding cover 51 is fully pushed into place, the recess on its side aligns perfectly with the limiting pin 542. Under the action of the second return spring 543, the limiting pin 542 pops out and engages with the recess, thereby locking the sliding cover and preventing it from accidentally sliding out during operation.

[0035] The working process of this embodiment is as follows:

[0036] (1) The construction worker holds the gripping rod 1. First, the free end of the double-ear chain 4 is passed around the space frame member to be installed, and then the free end of the double-ear chain 4 is guided between the two side plates 32 of the mounting base 3, so that the chain is located in the channel formed by the side plates 32. At this time, the pin 41 of the double-ear chain 4 is located on the outside of the two side plates 32, and the main body of the double-ear chain 4 is in the inner space of the two side plates 32.

[0037] (2) Push the detachable slide cover 51 into the side of the mounting base 3 along the limiting protrusion 53. When the detachable slide cover 51 is fully pushed into place, the two limiting pins 542 of the limiting module 54 automatically pop out under the action of the second return spring 543 and lock into the recess on the side of the detachable slide cover 51 to complete the installation and locking of the fixing mechanism.

[0038] (3) The worker pulls the chain outward with force through the handle 42. During the tightening process, the chain links push upward against the arc-shaped surface of the chain retainer 554, forcing the chain retainer 554 to overcome the force of the first return spring 553 and lift upward, allowing the chain to pass smoothly. When the tension is relaxed or the chain tends to retract, the chain retainer 554 falls rapidly under the action of the first return spring 553, and the arc-shaped groove on its side engages with the gap between the chain links, preventing the chain from retracting, thereby achieving one-way locking.

[0039] (4) The worker holds the grip rod 1 with both hands or one hand. By moving the grip rod 1, the worker can flexibly adjust the spatial position and three-dimensional posture of the bound rod so that the sleeve holes at both ends are precisely aligned with the screw holes on the two bolt balls in the air.

[0040] (5) After alignment, the rod is held stably by the device without manual support. Workers can completely free their hands and use tools such as wrenches to calmly perform the initial screwing and final tightening of the bolts.

[0041] (6) After installation, the worker pulls the ring on the top of the guide post 552 upwards, lifts the chain clip 554, and releases it from the chain, thus releasing the lock. Then, pull the grip rod 1 to pull the free end of the chain out of the channel between the side plates 32, thereby releasing the binding of the rod and quickly moving to the next work station for operation.

[0042] Example 2

[0043] like Figure 7 As shown, this embodiment simplifies and optimizes the structure of the chain fixing mechanism 5 based on embodiment one, while the rest is the same as in embodiment one.

[0044] In this embodiment, the chain fixing mechanism 5 is fixedly installed on the mounting base 3 and cannot be disassembled. Specifically, the chain fixing mechanism 5 is a one-way locking device integrated on the side plate 32 of the mounting base 3. Its internal structure is the same as that of the tooth module 55 in Embodiment 1, including a chain tooth 554 that can move up and down, a guide post 552, and a first return spring 553. The top of the guide post 552 is also provided with a pull ring for unlocking.

[0045] The key improvement is that the free end of the double-hook chain 4 no longer has a handle 42 directly attached, but is instead fixedly connected to a high-strength flexible traction rope 6.

[0046] The optimized working process in this embodiment is as follows:

[0047] (1) Construction workers hold the device. First, the free end of the double-ear chain 4 is wrapped around the grid member to be installed and pulled back, so that the chain forms a loop on the member. Then, the traction rope 6 is threaded into the entrance of the chain fixing mechanism 5.

[0048] (2) The worker pulls the end of the traction rope 6 outward. The traction rope 6 moves together with the double-ear chain 4 that is fixedly connected to it, and the chain is tightened, thereby binding and tightening the rod. During the tightening process, the chain links push the chain teeth 554 upward and pass through; when the pulling stops or the chain tends to retract, the chain teeth 554 fall down and engage with the chain links, realizing one-way locking.

[0049] (3) The worker pulls the chain outward with force through the handle 42. During the tightening process, the chain links push upward against the arc-shaped surface of the chain retainer 554, forcing the chain retainer 554 to overcome the force of the first return spring 553 and lift upward, allowing the chain to pass smoothly. When the tension is relaxed or the chain tends to retract, the chain retainer 554 falls rapidly under the action of the first return spring 553, and the arc-shaped groove on its side engages with the gap between the chain links, preventing the chain from retracting, thereby achieving one-way locking.

[0050] (4) The worker holds the grip rod 1 with both hands or one hand. By moving the grip rod 1, the worker can flexibly adjust the spatial position and three-dimensional posture of the bound rod so that the sleeve holes at both ends are precisely aligned with the screw holes on the two bolt balls in the air.

[0051] (5) After alignment, the rod is held stably by the device without manual support. Workers can completely free their hands and use tools such as wrenches to calmly perform the initial screwing and final tightening of the bolts.

[0052] (6) After installation, pull the pull ring on the top of the guide post 552 upward to unlock it, and then pull the grip rod 1 to remove the chain from the chain fixing mechanism 5 and release the binding of the rod.

[0053] The use of flexible traction rope 6 instead of directly pulling the rigid chain makes operation more labor-saving and flexible during the threading and initial tensioning stages, and is easier to operate, especially when space is limited.

[0054] The chain fixing mechanism 5 is directly integrated into the mounting base 3, eliminating the need for the detachable sliding cover 51 and its related limiting protrusions 53, slide grooves 52, and limiting modules 54. This results in a simpler and more compact overall structure, fewer potential failure points, and improved reliability.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel high-altitude installation auxiliary device for bolted space frame structures, characterized in that: The device includes a grip bar, a universal joint, a mounting base, a double-ear chain, and a chain fixing mechanism. The two ends of the universal joint are connected to the front end of the grip bar and the mounting base, respectively. One end of the double-ear chain is connected to the mounting base, and the other end of the double-ear chain is connected to the mounting base via the chain fixing mechanism. The chain fixing mechanism includes a detachable sliding cover with a groove on its inner wall. The mounting base has a limiting protrusion on its side that matches the groove. The mounting base has a limiting module that restricts the movement of the detachable sliding cover, and the detachable sliding cover has a locking tooth module that restricts the movement of the double-ear chain.

2. The novel bolted space frame structure high-altitude installation auxiliary device according to claim 1, characterized in that, The pin of the double-loop chain is movably mounted between the inside of the detachable sliding cover and the edge of the mounting base.

3. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 1, characterized in that, The mounting base includes a connecting part and two symmetrical side plates. One side of each side plate has a V-shaped opening, and the two side plates are fixed together by the connecting part.

4. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 1, characterized in that, The chain tooth module includes chain teeth and a first return spring; the detachable sliding cover has a movable groove for the chain teeth to move, the chain teeth are provided with guide posts, the first return spring is sleeved on the guide posts, and the side of the chain teeth is provided with an arc-shaped groove that matches the double-ear chain.

5. The novel bolted space frame structure high-altitude installation auxiliary device according to claim 1, characterized in that, The limiting module includes a mounting housing, a second return spring, and two limiting pins; the mounting housing is disposed on the mounting base, the two limiting pins are respectively disposed on both sides of the mounting housing, and the second return spring is disposed between the two limiting pins.

6. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 5, characterized in that, The end of the limiting pin is chamfered.

7. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 5, characterized in that, The side of the mounting base is provided with a through groove that matches the limiting pin.

8. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 1, characterized in that, The grip rod is a multi-section telescopic rod.

9. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 1, characterized in that, The free end of the double-loop chain is equipped with a handle or traction rope.

10. The novel high-altitude installation auxiliary device for bolted space frame structures according to claim 4, characterized in that, The top of the guide post is equipped with a pull ring.

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