Protective device for civil engineering

Abstract

This utility model relates to the field of building engineering technology, specifically disclosing a protective device for civil engineering construction, including a base plate. A height-adjustable protective mechanism is installed above the base plate. The height-adjustable mechanism includes a rectangular frame fixedly connected to the upper end of the base plate. A threaded rod is rotatably connected to the upper end of the rectangular frame. An internally threaded sleeve is threadedly connected to the outer wall of the threaded rod. A limit rod is fixedly connected to the upper end of the rectangular frame. A sleeve is slidably connected to the outer wall of the limit rod. A mounting frame is fixedly connected to the upper ends of both the sleeve and the internally threaded sleeve. The threaded rod and the internally threaded sleeve cooperate, converting the rotational motion of the threaded rod into the vertical linear motion of the sleeve. The sliding cooperation between the limit rod and the sleeve forcibly constrains the internally threaded sleeve to rise and fall only axially, ensuring that the mounting frame rises or falls smoothly, achieving the purpose of flexibly adjusting the protective height according to the actual scenario.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and specifically discloses a protective device for civil engineering construction. Background Technology

[0002] Construction engineering refers to the physical engineering project formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. "Buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that meet people's needs for production, residence, study, and public activities. During the civil construction of building projects, protective devices are required to ensure the safety of the construction site.

[0003] A protective device for civil engineering construction, Chinese Patent No. CN220565864U, includes a protective plate. Two horizontal plates are fixedly connected to the left and right ends of the back of the protective plate. A connecting plate overlaps between the two horizontal plates. Threaded holes are opened inside the connecting plate and the horizontal plates. Bolts are threaded to the inner walls of the threaded holes, and nuts are threaded to the outer walls of the bolts. Support plates are fixedly connected to both ends of the connecting plate. This utility model can achieve the protective effect of the anti-collision plate through anti-collision airbags.

[0004] Although the anti-collision function is achieved through anti-collision airbags, significant shortcomings have been exposed in practical applications. The protective plate of this device has a fixed height, which cannot be flexibly adjusted according to the actual construction operation scenario. The required protective height varies significantly at different stages, and the fixed-height protective device cannot meet the safety protection needs throughout the entire process. It requires frequent replacement or the addition of auxiliary facilities, making it inconvenient to use. Therefore, a protective device for civil engineering construction is needed to solve the above problems. Utility Model Content

[0005] This utility model proposes a protective device for civil engineering construction, which adjusts the height range of the protective netting through a height-adjustable protective mechanism, making it convenient to use.

[0006] This utility model is implemented as follows: a protective device for civil engineering construction includes a base plate, and a height-adjustable protective mechanism is provided above the base plate.

[0007] The height adjustment mechanism includes a rectangular frame fixedly connected to the upper end of the base plate. A threaded rod is rotatably connected to the upper end of the rectangular frame. An internally threaded sleeve is threadedly connected to the outer wall of the threaded rod. A limit rod is fixedly connected to the upper end of the rectangular frame. A sleeve is slidably connected to the outer wall of the limit rod. A mounting bracket is fixedly connected to the upper ends of the sleeve and the internally threaded sleeve. A pull rod is rotatably connected inside the mounting bracket. A groove is opened at the front end of the rectangular frame. A roller is rotatably connected inside the groove. A protective net is wound around the outer wall of the roller. The free end of the protective net is fixedly connected to the pull rod. A worm gear is rotatably connected between the upper and lower ends inside the rectangular frame. The lower end of the threaded rod extends into the interior of the rectangular frame and is fixedly connected to a worm wheel that meshes with the worm gear.

[0008] As a preferred embodiment of the protective device for civil engineering construction according to this utility model, the outer wall of the protective net is fixedly connected with a plurality of evenly distributed binding straps, and the outer walls of the two internally threaded sleeves are fixedly connected with a plurality of evenly distributed fixing piles.

[0009] As a preferred embodiment of the protective device for civil engineering construction of this utility model, a horizontal plate is fixedly connected to the right end of the rectangular frame, an external threaded rod is threaded through and threaded to the lower end of the horizontal plate, an insert rod is fixedly connected to the upper end of the external threaded rod, the right end of the roller extends to the right end of the rectangular frame, and an insertion hole adapted to the insert rod is opened on the outer wall.

[0010] As a preferred embodiment of the protective device for civil engineering construction according to this utility model, the protective net adopts a composite laminated structure.

[0011] As a preferred embodiment of the protective device for civil engineering in this utility model, two counterweights distributed on the left and right are embedded at the bottom of the rectangular frame.

[0012] As a preferred embodiment of the protective device for civil engineering construction according to this utility model, the lower end of the base plate is fixedly connected with a plurality of evenly distributed conical inserts.

[0013] As a preferred embodiment of the protective device for civil engineering construction according to this utility model, the upper end of the worm extends to the top of the rectangular frame and is fixedly connected to a drive turntable.

[0014] The beneficial effects of this utility model are:

[0015] (1) When the protection height needs to be adjusted, the operator rotates the worm gear, which drives the worm wheel meshing with it to rotate, causing the threaded rod fixed at the center of the worm wheel to rotate synchronously. The threaded rod engages with the internal threaded sleeve, and its rotational motion is converted into the vertical linear motion of the sleeve. The sliding engagement between the limit rod and the sleeve forces the internal threaded sleeve to rise and fall only along the axial direction, ensuring that the mounting bracket is raised or lowered smoothly, so as to achieve the purpose of flexibly adjusting the protection height according to the actual situation.

[0016] (2) The displacement of the mounting frame is synchronously pulled by the tie rod to unfold or rewind the protective net. The free end of the protective net is fixed to the tie rod, and the main body is wound around the roller. It adapts to the movement of the tie rod and expands and contracts accordingly. The protective net forms a rigid barrier to achieve dynamic isolation and protection of the construction area. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is an overall structural diagram of a protective device for civil engineering construction according to the present invention.

[0019] Figure 2 This is a partial structural diagram of the present invention.

[0020] Figure 3 This is a rear view structural diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A.

[0022] The markings in the diagram are: 1. Base plate; 2. Rectangular frame; 3. Internal threaded sleeve; 4. Threaded rod; 5. Insertion hole; 6. Tie rod; 7. Protective net; 8. Groove; 9. Worm gear; 10. Worm; 11. Counterweight; 12. Reel; 13. External threaded rod; 14. Horizontal plate; 15. Insertion rod; 16. Fixing stake; 17. Binding strap; 18. Limiting rod; 19. Sleeve; 20. Mounting bracket. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4A protective device for civil engineering construction includes a base plate 1, and a height-adjustable protective mechanism is provided above the base plate 1.

[0025] The height adjustment mechanism includes a rectangular frame 2 fixedly connected to the upper end of the base plate 1. A threaded rod 4 is rotatably connected to the upper end of the rectangular frame 2. An internally threaded sleeve 3 is threadedly connected to the outer wall of the threaded rod 4. A limit rod 18 is fixedly connected to the upper end of the rectangular frame 2. A sleeve 19 is slidably connected to the outer wall of the limit rod 18. A mounting bracket 20 is fixedly connected to the upper ends of the sleeve 19 and the internally threaded sleeve 3. A pull rod 6 is rotatably connected inside the mounting bracket 20. A groove 8 is opened at the front end of the rectangular frame 2. A roller 12 is rotatably connected inside the groove 8. A protective net 7 is wound around the outer wall of the roller 12. The free end of the protective net 7 is fixedly connected to the pull rod 6. A worm gear 10 is rotatably connected between the upper and lower ends inside the rectangular frame 2. The lower end of the threaded rod 4 extends into the interior of the rectangular frame 2 and is fixedly connected to a worm wheel 9 that meshes with the worm gear 10.

[0026] In this embodiment: when the height of the protective net 7 needs to be adjusted, the operator rotates the worm gear 10. Since the worm gear 10 is meshed with the worm wheel 9, the rotation of the worm gear 10 will drive the worm wheel 9 to rotate. The worm wheel 9 is fixed to the lower end of the threaded rod 4, thereby causing the threaded rod 4 to rotate at the upper end of the rectangular frame 2. The threaded rod 4 is threadedly connected to the internal threaded sleeve 3. According to the principle of thread transmission, the rotation of the threaded rod 4 will be converted into the vertical linear motion of the internal threaded sleeve 3. At the same time, the sliding fit between the limiting rod 18 and the sleeve 19 can limit the rotation of the internal threaded sleeve 3, ensuring that it only moves in the vertical direction, so that the mounting bracket 20, which is fixed at the upper end of the internal threaded sleeve 3 and the sleeve 19, can rise or fall smoothly.

[0027] When the mounting bracket 20 moves, the pull rod 6, which is rotatably connected to it, moves accordingly. Since the free end of the protective net 7 is fixed to the pull rod 6 and the protective net 7 is wound around the roller 12, the pull rod 6 pulls the protective net 7 to extend or retract. When the protective net 7 reaches the appropriate height, the external threaded rod 13 is rotated so that the insertion rod 15 is inserted into the insertion hole 5 at the right end of the roller 12, restricting the rotation of the roller 12, thereby fixing the position of the protective net 7, and thus providing shielding protection for the construction site.

[0028] As a technical optimization of this utility model, the outer wall of the protective net 7 is fixedly connected with a plurality of evenly distributed binding straps 17, and the outer walls of the two internally threaded sleeves 3 are fixedly connected with a plurality of evenly distributed fixing posts 16.

[0029] In this embodiment: the straps 17 on the outer wall of the protective net 7 are tied to the outer wall of the fixing pile 16, which can limit the left and right ends of the protective net 7.

[0030] As a technical optimization of this utility model, a horizontal plate 14 is fixedly connected to the right end of the rectangular frame 2, and an external thread rod 13 is threaded through and threaded to the lower end of the horizontal plate 14. An insertion rod 15 is fixedly connected to the upper end of the external thread rod 13. The right end of the scroll 12 extends to the right end of the rectangular frame 2, and an insertion hole 5 adapted to the insertion rod 15 is opened on the outer wall.

[0031] In this embodiment: by rotating the external threaded rod 13, the insertion rod 15 can be driven to move up and down, thereby facilitating the insertion of the insertion rod 15 into the insertion hole 5, and conversely, removing it from the insertion hole 5.

[0032] As a technical optimization of this utility model, the protective net 7 adopts a composite laminate structure.

[0033] In this embodiment, the protective net 7 adopts a composite laminate structure, which is composed of an innermost layer of polyester fiber woven mesh, a middle layer of orthogonally woven aramid fiber bundles, and an outermost layer of polyurethane coating, thereby improving the overall impact resistance of the protective net 7.

[0034] As a technical optimization of this utility model, two counterweights 11 are embedded at the bottom of the rectangular frame 2, which are distributed on the left and right.

[0035] In this embodiment, the counterweight 11 also helps to maintain the balance of the device and increase the stability of the base plate 1.

[0036] As a technical optimization of this utility model, the lower end of the base plate 1 is fixedly connected with a plurality of evenly distributed conical inserts.

[0037] In this embodiment, the tapered insert makes it easy to fix the base plate 1 to the construction position.

[0038] As a technical optimization of this utility model, the upper end of the worm gear 10 extends above the rectangular frame 2 and is fixedly connected to a drive turntable.

[0039] In this embodiment: the worm gear 10 can be driven to rotate by driving the turntable.

[0040] The working principle and usage process of this utility model are as follows: In use, the base plate 1 is first fixed to the construction position using a conical insert. When the height of the protective net 7 needs to be adjusted, the operator rotates the worm gear 10. Since the worm gear 10 is meshed with the worm wheel 9, the rotation of the worm gear 10 will drive the worm wheel 9 to rotate. The worm wheel 9 is fixed to the lower end of the threaded rod 4, thus causing the threaded rod 4 to rotate at the upper end of the rectangular frame 2. The threaded rod 4 is threadedly connected to the internal threaded sleeve 3. According to the thread transmission principle, the rotation of the threaded rod 4 will be converted into the vertical linear motion of the internal threaded sleeve 3. At the same time, the sliding fit between the limiting rod 18 and the sleeve 19 can limit the rotation of the internal threaded sleeve 3, ensuring that it only moves in the vertical direction, so that the mounting bracket 20, which is jointly fixed at the upper end of the internal threaded sleeve 3 and the sleeve 19, can rise or fall smoothly.

[0041] When the mounting bracket 20 moves, the pull rod 6, which is rotatably connected to it, moves accordingly. Since the free end of the protective net 7 is fixed to the pull rod 6 and the protective net 7 is wound around the roller 12, the pull rod 6 pulls the protective net 7 to extend or retract. When the protective net 7 reaches the appropriate height, the external threaded rod 13 is rotated so that the insertion rod 15 is inserted into the insertion hole 5 at the right end of the roller 12, restricting the rotation of the roller 12, thereby fixing the position of the protective net 7, and thus providing shielding protection for the construction site.

[0042] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A protective device for civil engineering construction, comprising a base plate (1), characterized in that: A height adjustment and protection mechanism is provided above the base plate (1); The height adjustment and protection mechanism includes a rectangular frame (2) fixedly connected to the upper end of the base plate (1). A threaded rod (4) is rotatably connected to the upper end of the rectangular frame (2). An internally threaded sleeve (3) is threadedly connected to the outer wall of the threaded rod (4). A limit rod (18) is fixedly connected to the upper end of the rectangular frame (2). A sleeve (19) is slidably connected to the outer wall of the limit rod (18). A mounting bracket (20) is fixedly connected to the upper ends of the sleeve (19) and the internally threaded sleeve (3). The inner wall of the mounting bracket (20) is... A pull rod (6) is rotatably connected to the rectangular frame (2). A groove (8) is provided at the front end of the rectangular frame (2). A scroll (12) is rotatably connected inside the groove (8). A protective net (7) is wrapped around the outer wall of the scroll (12). The free end of the protective net (7) is fixedly connected to the pull rod (6). A worm gear (10) is rotatably connected between the upper and lower ends inside the rectangular frame (2). The lower end of the threaded rod (4) extends into the interior of the rectangular frame (2) and is fixedly connected to a worm wheel (9) that meshes with the worm gear (10).

2. The protective device for civil engineering construction according to claim 1, characterized in that: The outer wall of the protective net (7) is fixedly connected with a number of evenly distributed binding straps (17), and the outer walls of the two internal threaded sleeves (3) are fixedly connected with a number of evenly distributed fixing stakes (16).

3. The protective device for civil engineering construction according to claim 1, characterized in that: A horizontal plate (14) is fixedly connected to the right end of the rectangular frame (2). The lower end of the horizontal plate (14) is threaded through and connected to an external thread rod (13). The upper end of the external thread rod (13) is fixedly connected to an insertion rod (15). The right end of the scroll (12) extends to the right end of the rectangular frame (2), and the outer wall is provided with an insertion hole (5) that matches the insertion rod (15).

4. A protective device for civil engineering construction according to claim 1, characterized in that: The protective net (7) adopts a composite laminate structure.

5. A protective device for civil engineering construction according to claim 2, characterized in that: Two counterweights (11) are embedded at the bottom of the rectangular frame (2) and distributed on the left and right.

6. A protective device for civil engineering construction according to claim 1, characterized in that: The lower end of the base plate (1) is fixedly connected with a plurality of evenly distributed conical inserts.

7. A protective device for civil engineering construction according to claim 1, characterized in that: The upper end of the worm (10) extends above the rectangular frame (2) and is fixedly connected to a drive turntable.

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