Horizontal opening safety protection device

Abstract

The application discloses a horizontal hole safety protection device, which comprises a baffle for covering the hole, at least two baffles, a center support, a tension rod, a sliding sleeve and a clamping part. The baffle is fixed in the horizontal position to cover the hole, and when the baffle needs to be removed, the center support is pulled upward, and the baffle naturally falls down. The two baffles are relatively close to each other, thereby facilitating storage and transportation.

Description

Technical Field

[0001] This invention relates to the field of construction safety protection devices, and in particular to a safety protection device for horizontal openings. Background Technology

[0002] On construction sites, various holes and openings often exist in buildings and structures. Work at heights near the openings of these holes and openings is collectively referred to as "hole work." Objects or people frequently fall through these holes and openings, causing injuries. Furthermore, various openings that pose a risk of falling objects or endanger personal safety due to special engineering or procedural requirements should be protected as part of hole work.

[0003] Currently, the common method of protection is to install protective nets at the opening or guardrails around the opening. This is not only inconvenient to install and remove, but also inconvenient to store and reuse. Summary of the Invention

[0004] To address the inconvenience of protecting horizontal openings, this invention proposes a safety protection device for horizontal openings that is easy to disassemble, install, and store, and can be reused.

[0005] The technical solution adopted in this invention is to design a horizontal opening safety protection device, including a baffle for covering the opening. There are at least two baffles, which are arranged around a central support. One end of the baffle is rotatably connected to the central support, and the lower side of the baffle is rotatably connected to one end of a tension rod. The other end of the tension rod is rotatably connected to a sliding sleeve. The sliding sleeve is slidably fitted onto the central support. A locking part is fixed on the central support above the sliding sleeve, and the locking part prevents the sliding sleeve from continuing to move upward along the central support.

[0006] In some embodiments, a telescopic rod assembly parallel to the baffle and a connecting rod parallel to the tension rod are also included below the baffle. The tension rod, the connecting rod, the telescopic rod assembly and the baffle are connected by a shaft hinge to form a parallel four-bar linkage. When the baffle covers the opening, the telescopic rod supports the inner wall of the opening.

[0007] In some embodiments, the telescopic rod assembly includes a guide and a telescopic rod that can extend and retract relative to the guide, wherein the tension rod, the connecting rod, the guide, and the baffle are connected by a shaft hinge to form a parallel four-bar linkage.

[0008] In some embodiments, the guide is a threaded sleeve, and the telescopic rod is a screw that is threadedly engaged with the threaded sleeve.

[0009] In some embodiments, the screw end has an elastically telescopic tip.

[0010] In some embodiments, the guide is a sleeve, the telescopic rod is a sliding rod that is slidably fitted inside the sleeve, the central support is a tube, a lifting rod is provided inside the tube, a through groove corresponding to the push rod is provided on the tube, the sliding rod and the lifting rod are connected by the push rod, one end of the push rod passes through the through groove and is rotatably connected to the sliding rod, and the other end is rotatably connected to the lifting rod, and the lifting rod is controlled by a lifting device to raise and lower relative to the tube.

[0011] In some embodiments, the lifting device includes a nut located at the upper end of the tube body, and the lifting rod is provided with a thread that mates with the nut, so that the lifting rod is raised or lowered by rotating the nut.

[0012] In some embodiments, the baffle is arranged symmetrically about the central support.

[0013] In some embodiments, the baffle is rotatably connected to the central support via a horizontal axis hinge, and the horizontal axis hinge is connected to the central support via an extension rod.

[0014] In some embodiments, the baffle is fan-shaped.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the opening needs to be covered, the central support pillar is positioned in the middle of the opening, and then the baffle is rotated upward to a horizontal position. At this time, the sliding sleeve connected to the connecting rod is locked at the fixing ring and cannot move upward further, thus fixing the baffle in a horizontal position and covering the opening. When the baffle needs to be removed, simply pull the central support pillar upward, and the baffle will hang down naturally, with the two baffles 1 approaching each other, thus facilitating storage and transportation. Attached Figure Description

[0017] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings. To illustrate the details and facilitate understanding of its principles, the drawings are not necessarily to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Wherein:

[0018] Figure 1 This is a top-down view of the protective device covering the opening.

[0019] Figure 2 yes Figure 1 A schematic diagram of section AA.

[0020] Figure 3 This is a schematic diagram showing how a telescopic rod can be shortened to fit a smaller diameter opening.

[0021] Figure 4 This is a diagram showing the protective device after it has been stored away.

[0022] In the diagram, 1. baffle; 2. central support; 201. through groove; 3. horizontal axis hinge; 4. extension rod; 5. tension rod; 6. sliding sleeve; 7. fixing ring; 8. opening; 9. connecting rod; 10. guide; 11. telescopic rod; 12. lifting rod; 13. jacking rod; 14. nut. Detailed Implementation

[0023] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments, and the following embodiments do not limit the invention covered by the claims. Furthermore, not all combinations of the features described in the embodiments are necessary for the inventive solution.

[0024] The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments. Example

[0025] like Figure 1 , 2 As shown in Figures 3 and 4, a safety protection device for a horizontal opening 8 includes baffles 1 for covering the opening 8. There are at least two baffles 1, and in this embodiment, there are two. The baffles 1 are arranged around a central support column 2, symmetrically arranged with respect to the central support column 2. The baffles 1 and the central support column 2 are rotatably connected by a horizontal axis hinge 3. The horizontal axis hinge 3 is connected to the central support column 2 via an extension rod 4. The baffles 1 are fan-shaped, that is, generally semi-circular. The two baffles 1 together form a circle to cover the circular opening 8.

[0026] One end of the baffle 1 is rotatably connected to the central support column 2 so that it can rotate relative to the central support column 2. The middle of the lower side of the baffle 1 is rotatably connected to one end of a tension rod 5 via a hinge. The other end of the tension rod 5 is rotatably connected to a sliding sleeve 6. The sliding sleeve 6 is slidably fitted onto the central support column 2, so that it can slide up and down along the central support column 2. A locking part is fixed on the central support column 2 above the sliding sleeve 6. In this embodiment, it is a fixing ring 7 fixed on the central support column 2. The locking part prevents the sliding sleeve 6 from continuing to move upward along the central support column 2, thereby preventing the baffle 1 from rotating upward relative to the central support column 2 around the axis hinge. In this embodiment, when the vertical setting is as shown in the figure, the baffle 1 can only rotate upward to the horizontal position, while the sliding sleeve 6 can move downward, so that the baffle 1 can rotate downward until it is close to the central support column 2, thereby reducing the space occupied by the entire device, thus facilitating storage and transportation.

[0027] When it is necessary to cover the opening 8, the central support 2 is positioned in the middle of the opening 8, and then the baffle 1 is rotated upward to a horizontal position. At this time, the sliding sleeve 6 connected to the connecting rod 9 is locked at the fixing ring 7 and cannot move upward further, thereby fixing the baffle 1 in a horizontal position and covering the opening 8. When it is necessary to remove the baffle 1, simply pull the central support 2 upward, and the baffle 1 will hang down naturally, with the two baffles 1 close to each other, thus facilitating storage and transportation.

[0028] It also includes a telescopic rod 11 assembly parallel to the baffle 1 located below the baffle 1 and a connecting rod 9 parallel to the tension rod 5. The tension rod 5, the connecting rod, the telescopic rod 11 assembly, and the baffle 1 are connected by a hinge to form a parallel four-bar linkage. When the baffle 1 covers the opening 8, the telescopic rod 11 supports the inner wall of the opening 8. Since the tension rod 5, the connecting rod, the telescopic rod 11 assembly, and the baffle 1 constitute a parallel four-bar linkage, the telescopic rod 11 and the baffle 1 always remain parallel. Thus, when the baffle 1 horizontally covers the opening 8, the telescopic rod 11 also remains horizontal, allowing the telescopic rod 11 to support the inner wall of the opening 8, thereby preventing the baffle 1 from moving horizontally and not affecting the rotation, disassembly, and storage of the baffle 1.

[0029] The telescopic rod 11 assembly includes a guide member 10 and a telescopic rod 11 that can extend and retract relative to the guide member 10. The tension rod 5, the connecting rod, the guide member 10 assembly, and the baffle 1 are connected by a shaft hinge to form a parallel four-bar linkage. The guide member 10 is a sleeve, and the telescopic rod 11 is a sliding rod fitted inside the sleeve. The central support 2 is a tube, and a lifting rod 12 is provided inside the tube. The tube has a through groove 201 corresponding to the push rod. The sliding rod and the lifting rod 12 are connected by a push rod 13. One end of the push rod 13 passes through the through groove 201 and is rotatably connected to the sliding rod, while the other end is rotatably connected to the lifting rod 12. The lifting rod 12 is controlled to rise and fall relative to the tube by a lifting device. The lifting device includes a nut 14 located at the upper end of the tube. The lifting rod 12 has a thread that mates with the nut 14. Rotating the nut 14 controls the rise and fall of the lifting rod 12. The lifting rod 12 is raised and lowered so that the extension rod 11 relative to the inner wall of the opening 8 is controlled by the push rod 13, thereby making its support for the inner wall of the opening 8 more stable, facilitating the installation and disassembly of the baffle 1, so that the extension rod 11 can be adapted to support the inner wall of openings 8 of different diameters.

[0030] Of course, the guide 10 can also be a threaded sleeve, and the telescopic rod 11 is a screw that is threadedly engaged with the threaded sleeve, so that the extension and retraction of the telescopic rod 11 relative to the side wall of the opening 8 can be controlled by the rotation of the screw relative to the threaded sleeve.

[0031] To improve the support force of the screw on the side wall of the opening 8, the end of the screw can be provided with an elastically telescopic end to provide elastic preload.

[0032] Although this document uses a number of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention. The order of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless otherwise expressly specified, and provided that the output of a preceding process is not used in a subsequent process. Similar sequential terms used for descriptive convenience (e.g., "firstly," "next," "secondly," "again," "then," etc.) do not imply that the actions must be performed in such an order.

[0033] Those skilled in the art will understand that all directional references (e.g., above, below, up, down, down, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the drawings to aid the reader's understanding and do not imply (e.g., a limitation on the scope of the invention as defined by the appended claims) a limitation on the location, orientation, or use of the invention, but are merely for the purpose of facilitating the description of this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation. The directional terms "inside" and "outside" refer to inside or outside relative to the outline of the respective component itself.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] Additionally, some vague terms (e.g., substantially, certain, generally, etc.) may refer to slight inaccuracies or minor deviations in conditions, quantities, values, or dimensions, some of which are within manufacturing tolerances or limits. It should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components; unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art can make various modifications or additions to the described embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A safety protection device for a horizontal opening, comprising a baffle for covering the opening, characterized in that, The baffle is at least two in number, arranged around a central support column. One end of each baffle is rotatably connected to the central support column, and the lower side of each baffle is rotatably connected to one end of a tension rod. The other end of the tension rod is rotatably connected to a sliding sleeve, which slides onto the central support column. A locking part is fixed on the central support column above the sliding sleeve to prevent the sliding sleeve from moving upward along the central support column. The baffle also includes a telescopic rod assembly parallel to the baffle and a connecting rod parallel to the tension rod, located below the baffle. The tension rod, the connecting rod, the telescopic rod assembly, and the baffle are connected by a hinge to form a parallel four-bar linkage. When the baffle covers the opening, the telescopic rod assembly supports the inner wall of the opening.

2. The horizontal opening safety protection device according to claim 1, characterized in that, The telescopic rod assembly includes a guide member and a telescopic rod that can extend and retract relative to the guide member. The tension rod, the connecting rod, the guide member, and the baffle are connected by a shaft hinge to form a parallel four-bar linkage.

3. The horizontal opening safety protection device according to claim 2, characterized in that, The guide is a threaded sleeve, and the telescopic rod is a screw that is threadedly engaged with the threaded sleeve.

4. The horizontal opening safety protection device according to claim 3, characterized in that, The screw end has an elastically extendable tip.

5. The horizontal opening safety protection device according to claim 2, characterized in that, The guide is a sleeve, the telescopic rod is a sliding rod that is fitted inside the sleeve, the central support is a tube, a lifting rod is provided inside the tube, and a through groove corresponding to the push rod is provided on the tube. The sliding rod and the lifting rod are connected by the push rod. One end of the push rod passes through the through groove and is rotatably connected to the sliding rod, and the other end is rotatably connected to the lifting rod. The lifting rod is controlled by a lifting device to raise and lower relative to the tube.

6. The horizontal opening safety protection device according to claim 5, characterized in that, The lifting device includes a nut located at the upper end of the tube body, and the lifting rod is provided with a thread that mates with the nut. The lifting rod is raised or lowered by rotating the nut.

7. The horizontal opening safety protection device according to claim 1, characterized in that, The baffles are arranged symmetrically about the central support.

8. The horizontal opening safety protection device according to claim 7, characterized in that, The baffle is rotatably connected to the central support via a horizontal axis hinge, and the horizontal axis hinge is connected to the central support via an extension rod.

9. The horizontal opening safety protection device according to claim 1, characterized in that, The baffle is fan-shaped.

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