A shallow silo roof inclined roof can be turned into a circular hole protection device

Abstract

The utility model discloses a kind of shallow circular silo roof inclined roof can be turned over and shrink circular hole protection device, belong to grain storage technical field, including protective frame, the upper surface of the protective frame is installed with protective net, two skeletons are installed in the protective frame lower, the both sides of the skeleton are fixedly connected with connecting plate, connecting block is fixedly connected under the connecting plate.In the utility model, first, each section keel is formed frame by axis pin bolt staggered insertion, forms whole with protective frame and protective net, after whole is placed in alignment hole, it is rotated by four lateral rotating discs, drives screw rod to rotate in connecting block, simultaneously drives antiskid pad to move, makes it tightly presses in hole inner wall, realizes the steady fixation of exempting from punching;Limit baffle is used to ensure that the assembly of each component of skeleton is in place without deviation, the device can be adjusted according to different hole size, install quickly, can be reused, suitable for short construction cycle, operation space is limited inclined roof scene.

Description

Technical Field

[0001] This utility model belongs to the field of grain storage technology, and in particular relates to a retractable circular opening protection device for the sloping roof of a shallow circular silo. Background Technology

[0002] Shallow circular silos are cylindrical structures used to store bulk materials such as grains. They typically have a circular working opening at the top for ventilation, maintenance, or material delivery. To ensure construction and use safety, this opening must be sealed off.

[0003] Currently, the most common method for protecting circular openings is to use steel pipes to build railings and add safety nets. However, this method has several problems: because the roof of a shallow circular warehouse is sloping and is a concrete structure, the waterproofing requirements are high and drilling is not allowed, making it difficult to install the traditional steel pipe structure stably and prone to instability; the installation and dismantling process is complicated, time-consuming, and labor-intensive; in addition, the safety nets used are easily damaged by the weather, requiring frequent maintenance and replacement, resulting in high operating costs.

[0004] Based on this, this utility model designs a retractable circular opening protection device for the sloping roof of a shallow circular warehouse to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to address the problems of the common method of protecting circular openings, which mainly involves using steel pipes to erect railings and adding safety nets. However, this method has several issues: because the roof of a shallow circular warehouse is sloping and made of concrete, it has high waterproofing requirements and does not allow drilling, making it difficult to install the traditional steel pipe structure stably and prone to instability; its installation and dismantling procedures are complex, time-consuming, and labor-intensive; in addition, the safety nets used are easily damaged by the weather, requiring frequent maintenance and replacement, resulting in high operating costs. Therefore, this utility model proposes a retractable circular opening protection device for the sloping roof of a shallow circular warehouse.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A retractable circular opening protection device for a shallow circular warehouse roof includes a protective frame, a protective net installed on the upper surface of the protective frame, two skeletons installed under the protective frame, connecting plates fixedly connected to both sides of the skeletons, connecting blocks fixedly connected under the connecting plates, threaded rods threadedly connected to the connecting blocks, a turntable fixedly connected to one end of the threaded rods, an anti-slip pad fixedly connected to the other end of the threaded rods, and a locking device installed inside the connecting plates.

[0008] As a further description of the above technical solution:

[0009] A central pin is installed through the protective net, and the central pin is connected to two frames.

[0010] As a further description of the above technical solution:

[0011] A limiting baffle is fixedly connected to the upper surface of the lower frame, and the other frame is locked inside the limiting baffle.

[0012] As a further description of the above technical solution:

[0013] The connecting plate is fixedly connected inside the protective frame.

[0014] As a further description of the above technical solution:

[0015] The locking device includes a sliding plate, a rectangular groove, and several limiting holes. The rectangular groove is opened in the connecting plate, the sliding plate is set in the rectangular groove, a limiting rod is fixedly connected to the outside of the sliding plate, a telescopic rod is fixedly connected to the inside of the sliding plate, the telescopic rod is fixedly connected in the rectangular groove, a return spring is provided on the outer sleeve of the telescopic rod, the limiting holes are opened in the turntable, and the limiting rod is locked in one of the limiting holes.

[0016] As a further description of the above technical solution:

[0017] A pressure plate is fixedly connected to one side of the slide plate, and a sliding connection is formed between the slide plate and the rectangular groove.

[0018] As a further description of the above technical solution:

[0019] One end of the pull-back spring is fixedly connected to the pressure plate, and the other end of the pull-back spring is fixedly connected to the rectangular groove.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, each section of keel is first connected by staggered insertion of axial pins to form a frame, which is integrated with the protective frame and protective net. After the whole is aligned with the opening, the four lateral turntables are rotated to drive the threaded rod to rotate in the connecting block, and at the same time drive the anti-slip pad to move, so that it is pressed against the inner wall of the opening, achieving a stable fixation without drilling; the limiting baffle is used to ensure that the components of the frame are assembled in place without deviation. This device can be adjusted according to different opening sizes, is quick to install, and can be reused. It is suitable for sloping roof scenarios with short construction cycles and limited working space.

[0022] 2. In this utility model, after the device is fixed, the pressure plate is released and the pull spring provides a restoring force to the slide plate, causing the slide plate to slide along the rectangular groove. During the movement, the slide plate drives the limiting rod to move synchronously and inserts the limiting rod into the corresponding limiting hole, thereby effectively limiting the turntable and preventing the turntable from accidentally loosening due to vibration or external force during use, further improving the structural stability and safety reliability of the device. Attached Figure Description

[0023] Figure 1 A three-dimensional structural schematic diagram of a retractable circular opening protection device for a shallow circular warehouse roof sloping roof proposed in this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the frame of a retractable circular opening protection device for a shallow circular warehouse roof sloping roof, as proposed in this utility model.

[0025] Figure 3 This is a three-dimensional structural diagram of a locking device for a retractable circular opening protection device on a sloping roof of a shallow circular warehouse, as proposed in this utility model.

[0026] Figure 4 This utility model proposes a retractable circular opening protection device for the sloping roof of a shallow circular warehouse. Figure 3 An enlarged structural diagram of part A in the middle.

[0027] Legend:

[0028] 1. Protective frame; 2. Protective net; 3. Skeleton; 4. Connecting plate; 5. Connecting block; 6. Threaded rod; 7. Turntable; 8. Anti-slip pad; 9. Locking device; 901. Rectangular groove; 902. Slide plate; 903. Limiting rod; 904. Pressure plate; 905. Telescopic rod; 906. Pull-back spring; 907. Limiting hole; 10. Shaft pin; 11. Limiting baffle. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4 ,

[0031] First embodiment:

[0032] This utility model provides a technical solution: a retractable circular opening protection device for the sloping roof of a shallow circular warehouse, including a protective frame 1, a protective net 2 installed on the upper surface of the protective frame 1, two skeletons 3 installed under the protective frame 1, connecting plates 4 fixedly connected to both sides of the skeletons 3, connecting blocks 5 fixedly connected under the connecting plates 4, threaded rods 6 threadedly connected to the connecting blocks 5, a turntable 7 fixedly connected to one end of the threaded rod 6, an anti-slip pad 8 fixedly connected to the other end of the threaded rod 6, and a locking device 9 installed inside the connecting plates 4.

[0033] Specifically, such as Figure 2-3 As shown, a pivot pin 10 is installed through the protective net 2. The pivot pin 10 is connected through the two frames 3. A limit baffle 11 is fixedly connected to the upper surface of the lower frame 3. The other frame 3 is locked in the limit baffle 11. The connecting plate 4 is fixedly connected to the protective frame 1.

[0034] During operation, the keel sections are first staggered and connected by the pivot pins 10 to form a frame, which is then integrated with the protective frame 1 and the protective net 2. After the entire frame is aligned with the opening, the four lateral turntables 7 rotate, causing the threaded rod 6 to rotate within the connecting block 5. At the same time, the anti-slip pad 8 moves, pressing it against the inner wall of the opening to achieve a stable fixation without drilling. The limiting baffle 11 is used to ensure that the components of the frame 3 are assembled in place without deviation. This device can be adjusted according to different opening sizes, is quick to install, and can be reused. It is suitable for sloping roof scenarios with short construction cycles and limited working space.

[0035] Second embodiment:

[0036] Specifically, such as Figure 4 As shown, the locking device 9 includes a sliding plate 902, a rectangular groove 901, and several limiting holes 907. The rectangular groove 901 is opened in the connecting plate 4, and the sliding plate 902 is set in the rectangular groove 901. The sliding plate 902 and the rectangular groove 901 form a sliding connection, which allows the sliding plate 902 to be moved controllably in the groove. The matching precision is high, and the free switching between structural limiting, release and other states can be realized, which effectively improves the action stability and response reliability of the limiting mechanism.

[0037] The slide plate 902 is externally fixedly connected to a limiting rod 903, and the slide plate 902 is internally fixedly connected to a telescopic rod 905. The telescopic rod 905 is fixedly connected in a rectangular groove 901, and a pull-back spring 906 is sleeved on the telescopic rod 905. A limiting hole 907 is opened in the turntable 7, and the limiting rod 903 is locked in one of the limiting holes 907. After the limiting rod 903 is inserted into the limiting hole 907 on the turntable 7, the position of the turntable 7 can be directly locked, forming a simple and effective mechanical stop, preventing the turntable 7 from rotating on its own under vibration or external force, and improving the safety and anti-loosening ability of the overall structure.

[0038] A pressure plate 904 is fixedly connected to one side of the slide plate 902. A sliding connection is formed between the slide plate 902 and the rectangular groove 901. One end of the return spring 906 is fixedly connected to the pressure plate 904, and the other end of the return spring 906 is fixedly connected to the rectangular groove 901. The return spring 906 provides a continuous restoring force to the slide plate 902, enabling the limit mechanism to have an automatic reset capability. There is no need to manually push the slide plate 902 back, making operation convenient and avoiding limit failure caused by human error or negligence.

[0039] During operation, after the device is fixed, the pressure plate 904 is released, and the pull-back spring 906 provides a restoring force to the slide plate 902, causing the slide plate 902 to slide along the rectangular groove 901. During the movement, the slide plate 902 drives the limiting rod 903 to move synchronously, and the limiting rod 903 is inserted into the corresponding limiting hole 907, thereby effectively limiting the turntable 7 and preventing the turntable 7 from accidentally loosening due to vibration or external force during use, further improving the structural stability and safety reliability of the device.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable circular opening protection device for a shallow circular warehouse roof, comprising a protective frame (1), characterized in that, The upper surface of the protective frame (1) is equipped with a protective net (2). Two frames (3) are installed under the protective frame (1). Connecting plates (4) are fixedly connected to both sides of the frames (3). Connecting blocks (5) are fixedly connected under the connecting plates (4). Threaded rods (6) are threadedly connected to the connecting blocks (5). Turntables (7) are fixedly connected to one end of the threaded rods (6). Anti-slip pads (8) are fixedly connected to the other end of the threaded rods (6). Locking devices (9) are installed inside the connecting plates (4).

2. The retractable circular opening protection device for a shallow circular warehouse roof as described in claim 1, characterized in that, The protective net (2) is provided with a core pin (10) running through it, and the core pin (10) runs through and connects the two frames (3).

3. The retractable circular opening protection device for a shallow circular warehouse roof as described in claim 1, characterized in that, A limiting baffle (11) is fixedly connected to the upper surface of the lower frame (3), and another frame (3) is locked inside the limiting baffle (11).

4. The retractable circular opening protection device for the sloping roof of a shallow circular warehouse according to claim 1, characterized in that, The connecting plate (4) is fixedly connected inside the protective frame (1).

5. A retractable circular opening protection device for a shallow circular warehouse roof with a sloping roof, as described in claim 1, characterized in that... The locking device (9) includes a sliding plate (902), a rectangular groove (901), and several limiting holes (907). The rectangular groove (901) is opened in the connecting plate (4). The sliding plate (902) is set in the rectangular groove (901). A limiting rod (903) is fixedly connected to the outside of the sliding plate (902). A telescopic rod (905) is fixedly connected inside the sliding plate (902). The telescopic rod (905) is fixedly connected in the rectangular groove (901). A return spring (906) is provided on the outer sleeve of the telescopic rod (905). The limiting holes (907) are opened in the turntable (7), and the limiting rod (903) is locked in one of the limiting holes (907).

6. A retractable circular opening protection device for a shallow circular warehouse roof with a sloping roof, as described in claim 5, is characterized in that... A pressure plate (904) is fixedly connected to one side of the slide plate (902), and a sliding connection is formed between the slide plate (902) and the rectangular groove (901).

7. A retractable circular opening protection device for a shallow circular warehouse roof with a sloping roof, as described in claim 5, is characterized in that... One end of the pull-back spring (906) is fixedly connected to the pressure plate (904), and the other end of the pull-back spring (906) is fixedly connected to the rectangular groove (901).

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