An opening guard

Abstract

The application relates to a hole protection device, belonging to the safety protection of building engineering, comprising a layout base and a protection cover plate hinged to the layout base and used for covering a hole; the layout base comprises a hinge seat used for rotating installation of the protection cover plate and a ring-shaped positioning seat inserted into the hole; the ring-shaped positioning seat has a through hole penetrating through upper and lower surfaces, and the ring-shaped positioning seat is provided with a layout ring groove, and a telescopic surrounding pipe is installed in the layout ring groove. The application has the effect of blocking stones and sundries near the hole from falling into the hole.

Description

Technical Field

[0001] This application relates to the field of safety protection in building construction, and in particular to a protective device for openings. Background Technology

[0002] During building construction, to meet the requirements of civil engineering specifications and construction techniques, structural floor slabs often need to have various horizontal openings, such as layout openings, material transfer openings, and flue openings. To prevent personnel from falling, protective devices must be installed at these openings. The opening protection device includes a base and a protective cover hinged to the base for closing the opening. The protective cover is opened when the opening is needed and closed when the opening is not needed.

[0003] Regarding the aforementioned technologies, when workers open the protective cover to enter the tunnel for work, external personnel passing near the tunnel entrance may kick stones or other debris into the tunnel, affecting the safety of workers on lower levels. Utility Model Content

[0004] In order to prevent stones and other debris near the cave entrance from falling into the cave, this application provides a cave entrance protection device.

[0005] The opening protection device provided in this application adopts the following technical solution: A hole protection device includes a base and a protective cover plate hinged to the base for covering the hole; the base includes a hinge seat for rotating the protective cover plate and an annular positioning seat inserted into the hole; the annular positioning seat has a through hole penetrating the upper and lower surfaces, and the annular positioning seat has an annular groove in which a telescopic tube is installed.

[0006] By adopting the above technical solution, when the opening protection device needs to be installed, the base is placed on the ground, and the annular positioning seat at the bottom of the base can be directly inserted into the opening. The protective cover plate and the base are installed by rotation, and the protective cover plate can be opened by rotation to expose the protected opening. When the protective cover plate is opened, the telescopic sleeve in the annular groove pops out, and stones and other debris along the edge of the opening can be blocked outside the opening by the telescopic sleeve, which helps to reduce the falling of stones and other debris into the opening and affect the working safety of workers on the lower level. When the opening protection device needs to be removed, the workers simply lift the protective device from the opening, and the annular positioning seat is removed and separated from the opening. This opening protection device is easy for workers to install and remove.

[0007] Optionally, the telescopic enclosure includes a mounting bottom ring installed at the bottom of the arrangement annular groove, a mounting top ring opposite the mounting bottom ring, a corrugated pipe connecting the mounting bottom ring and the mounting top ring, and a support spring arranged inside the corrugated pipe; the bottom of the support spring abuts against the mounting base plate, and the top of the support spring abuts against the mounting top ring.

[0008] By adopting the above technical solution, the telescopic enclosure is a compressible corrugated pipe. The support spring arranged inside the corrugated pipe can make the telescopic enclosure automatically pop out when the protective cover is opened, and when the protective cover is closed, it can be pressed into the arrangement annular groove.

[0009] Optionally, the top surface of the mounting bottom ring is provided with a guide sleeve, and the bottom surface of the mounting top ring is provided with a guide rod inserted into the guide sleeve.

[0010] By adopting the above technical solution, when the protective cover is opened, the telescopic enclosure automatically pops out, and the guide rod extends out of the guide sleeve to support the telescopic enclosure and keep it upright. When the protective cover is closed, the telescopic enclosure is pressed into the arrangement annular groove, and then retracts into the guide sleeve.

[0011] Optionally, the number of guide sleeves is not less than three, and the guide sleeves are evenly spaced around the top surface of the mounting bottom ring; the number of guide rods in the mounting top ring is the same as the number of guide sleeves.

[0012] By adopting the above technical solution, the number of guide sleeves is no less than three and they are evenly spaced around the top surface of the mounting bottom ring. The purpose is to maintain the stability and balance of the structure during the pop-up or compression process of the telescopic tube through multi-point symmetrical distribution.

[0013] Optionally, the inner edge of the mounting bottom ring is provided with a downward flange; the inner edge of the mounting top ring is provided with an upward flange.

[0014] By adopting the above technical solution, the inner edges of the installation bottom ring and the installation top ring are respectively provided with upper and lower flanges, which reduces the probability of the telescopic sleeve tilting or swaying in the extended state.

[0015] Optionally, the bottom surface of the mounting ring is provided with a first arrangement groove and a first magnetic sheet is provided in the first arrangement groove; the annular positioning seat is provided with a second arrangement groove on the bottom surface of the arrangement ring groove and a second magnetic sheet for attracting the first magnetic sheet is provided in the second arrangement groove.

[0016] By adopting the above technical solution, when the telescopic enclosure is installed in the arrangement groove, the magnetic sheet on the bottom surface of the mounting ring and the corresponding magnetic sheet on the bottom surface of the arrangement ring groove attract each other, fixing the telescopic enclosure in the arrangement groove. The magnetic sheet attraction method facilitates the installation and disassembly of the telescopic enclosure by the staff.

[0017] Optionally, the mounting top ring has an abutment block on the side facing the protective cover for the protective cover to abut against, and the mounting top ring has a mounting groove for arranging the abutment block.

[0018] By adopting the above technical solution, an abutment block is set on the side of the mounting top ring facing the protective cover. When the protective cover is closed, the protective cover directly contacts the abutment block set on the mounting top ring, reducing the wear of the mounting top ring and making it easier for staff to replace the abutment block.

[0019] Optionally, the top of the annular positioning seat is provided with a limiting ring for abutting and engaging with the upper edge of the opening.

[0020] By adopting the above technical solution, when the protective device is placed at the opening to be protected, the limiting ring at the top of the annular positioning seat, which is used to abut against the upper edge of the opening, can be locked onto the ground at the upper edge of the opening, so that the protective device can be directly installed at the opening and the displacement of the protective device can be reduced.

[0021] Optionally, the protective cover has a handle groove on its top, and an operating handle is provided in the handle groove of the protective cover.

[0022] By adopting the above technical solution, an operating handle is provided on the top of the protective cover, which makes it convenient for operators to open or close the protective cover. The handle groove on the top of the protective cover allows the operating handle to be stored in the groove, reducing the probability of passers-by tripping over the operating handle.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. A hole protection device, wherein a protective cover is opened by rotation, and a telescopic tube in the arrangement groove can be automatically popped out, and stones and other debris on the edge of the hole are blocked outside the hole by the telescopic tube. When the protective cover is closed, the telescopic tube can be pressed into the arrangement groove. 2. Quick assembly and disassembly are achieved by setting mutually attractive magnetic sheets in the mounting bottom ring and the arrangement ring groove. A support spring is used in conjunction with a guide sleeve and a guide rod to keep the telescopic tube in a stable and upright state when it pops out. A replaceable abutment block is set in the mounting top ring to reduce wear on the mounting top ring when the protective cover is closed, and the abutment block can be replaced. 3. By providing a handle groove on the top of the protective cover and installing an operating handle inside the handle groove, the protective cover can be easily opened or closed by the operator. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural schematic diagram of a hole protection device in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram showing the fit between the hinge seat, hinge protrusion, and hinge shaft in an embodiment of this application.

[0026] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle.

[0027] Figure 4 yes Figure 1 A magnified view of a portion of point B in the middle.

[0028] Explanation of reference numerals in the attached drawings: 1. Arrangement base; 2. Protective cover plate; 21. Hinge protrusion; 22. Handle groove; 23. Operating handle; 3. Hinge seat; 31. Hinge groove; 4. Annular positioning seat; 41. Through hole; 42. Limiting ring; 5. Connecting plate; 6. Hinge shaft; 7. Arrangement ring groove; 71. Second arrangement groove; 72. Second magnetic piece; 9. Telescopic enclosure tube; 91. Mounting bottom ring; 911. Lower flange; 913. Guide sleeve; 914. First arrangement groove; 915. First magnetic piece; 92. Mounting top ring; 921. Upper flange; 922. Guide rod; 923. Abutment block; 924. Mounting groove; 925. Screw; 93. Corrugated pipe; 94. Support spring. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses an opening protection device for installation on a floor slab with an opening. (See also...) Figure 1 A hole protection device includes a base 1 and a protective cover 2 hinged to the base 1 and used to cover the hole.

[0031] Reference Figure 1 and Figure 2 The base 1 includes a hinge seat 3 for rotating the protective cover 2, an annular positioning seat 4 inserted into the opening, and a connecting plate 5 connecting the hinge seat 3 and the annular positioning seat 4. The protective cover 2 is provided with a hinge protrusion 21 that mates with the hinge seat 3. The hinge seat 3 has a hinge groove 31 for arranging the hinge protrusion 21, and the hinge seat 3 and the hinge protrusion 21 are connected and engaged by a hinge shaft 6.

[0032] Reference Figure 1The shape of the annular positioning seat 4 is adapted to the cross-sectional shape of the opening. In this embodiment, the opening is circular, and the annular positioning seat 4 is generally cylindrical with a through hole 41 extending through the upper and lower surfaces. The top edge of the annular positioning seat 4 is provided with a limiting ring portion 42 for abutting and engaging with the upper edge of the opening, so that the annular positioning seat 4 can be stably arranged at the opening, and when the protective cover plate 2 covers the opening, the upper surface of the limiting ring portion 42 is in contact with the lower side surface of the protective cover plate 2.

[0033] Reference Figure 1 and Figure 3 The annular positioning seat 4 has a coaxially arranged arrangement annular groove 7 on its inner wall, and the arrangement annular groove 7 forms an arrangement opening on the top surface of the annular positioning seat 4. In this embodiment, the depth of the arrangement annular groove 7 is 10cm. A telescopic enclosure tube 9 is installed in the arrangement annular groove 7 within the annular positioning seat 4, so that when the protective cover plate 2 is in the open state, the top of the telescopic enclosure tube 9 can extend out of the arrangement annular groove 7 through the arrangement opening, thereby reducing the probability of external gravel entering the hole.

[0034] Reference Figure 1 and Figure 3 The telescopic tube 9 includes a mounting bottom ring 91 installed at the bottom of the arrangement annular groove 7, a mounting top ring 92 opposite to the mounting bottom ring 91, a corrugated tube 93 connecting the mounting bottom ring 91 and the mounting top ring 92, and a support spring 94 arranged inside the corrugated tube 93. The bottom of the support spring 94 abuts against the mounting bottom ring 91, and the top of the support spring 94 abuts against the mounting top ring 92. Under the action of the support spring 94, the mounting bottom ring 91 and the mounting top ring 92 always tend to separate from each other. The inner edge of the mounting bottom ring 91 is provided with a downward flange 911, and the inner edge of the mounting top ring 92 is provided with an upward flange 921. The upward flange 921 and the downward flange 911 can limit the support spring 94.

[0035] Reference Figure 1 and Figure 3 To prevent the telescopic tube 9 from bending during telescopic expansion and contraction, a guide sleeve 913 extending towards a top mounting ring 92 is provided on the top surface of the mounting bottom ring 91 of the telescopic tube 9. A guide rod 922 inserted into the guide sleeve 913 is provided on the bottom surface of the mounting top ring 92. There are at least three guide sleeves 913, which are evenly spaced circumferentially on the top surface of the mounting bottom ring 91. The number of guide rods 922 in the mounting top ring 92 is the same as the number of guide sleeves 913. In this embodiment, there are six guide sleeves 913 and six guide rods 922.

[0036] Reference Figure 1 and Figure 4The telescopic tube 9 and the annular positioning seat 4 are engaged by a magnetic attraction structure. The magnetic attraction structure includes a first arrangement groove 914 on the bottom surface of the mounting base ring 91, a first magnetic piece 915 arranged within the first arrangement groove 914, a second arrangement groove 71 on the bottom surface of the arrangement annular groove 7, and a second magnetic piece 72 arranged within the second arrangement groove 71 for engaging with the first magnetic piece 915. The engagement of the first magnetic piece 915 and the second magnetic piece 72 facilitates the assembly and disassembly of the telescopic tube 9 within the arrangement annular groove 7 of the annular positioning seat 4.

[0037] Reference Figure 1 and Figure 3 During the opening and closing process, the protective cover 2 will impact the mounting top ring 92. To extend the service life of the mounting top ring 92, the mounting top ring 92 is provided with an abutment block 923 on the side facing the protective cover 2 for the protective cover 2 to abut against. The mounting top ring 92 has a mounting groove 924 for accommodating the abutment block 923. The abutment block 923 is locked into the mounting groove 924 by screws 925.

[0038] Reference Figure 1 To facilitate the opening and closing of the protective cover 2, a handle groove 22 is provided on the top of the protective cover 2. An operating handle 23 is provided in the handle groove 22 of the protective cover 2.

[0039] Combination Figures 1 to 4 The implementation principle of the opening protection device in this application embodiment is as follows: When installing the opening protection device, the base 1 is aligned with the opening, the annular positioning seat 4 is inserted into the opening, and the limiting ring 42 is locked onto the ground at the upper edge of the opening, thus achieving stable placement of the opening protection device. The protective cover 2 is connected to the base 1 via a hinge seat 3, allowing it to be rotated and opened / closed. When the protective cover 2 is opened, the support spring 94 drives the telescopic enclosure 9 to automatically pop out, reducing the amount of debris such as stones falling into the opening; when the protective cover 2 is closed, the telescopic enclosure 9 is pressed back into the arrangement ring groove 7. The top of the cover is equipped with a retractable operating handle 23, which facilitates opening and closing operations and reduces the risk of tripping. When disassembling the opening protection device, simply lift the device vertically, and the annular positioning seat 4 will detach from the opening, achieving quick removal.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hole protection device, characterized in that, It includes a base (1) and a protective cover (2) hinged to the base (1) and used to cover the opening; the base (1) includes a hinge seat (3) for rotating the protective cover (2) and an annular positioning seat (4) inserted into the opening; the annular positioning seat (4) has a through hole (41) penetrating the upper and lower surfaces, and the annular positioning seat (4) has an arrangement annular groove (7) and a telescopic enclosure (9) is installed in the arrangement annular groove (7).

2. The opening protection device according to claim 1, characterized in that, The telescopic enclosure (9) includes a mounting bottom ring (91) installed at the bottom of the arrangement annular groove (7), a mounting top ring (92) opposite to the mounting bottom ring (91), a corrugated pipe (93) connecting the mounting bottom ring (91) and the mounting top ring (92), and a support spring (94) arranged inside the corrugated pipe (93); the bottom of the support spring (94) abuts against the mounting bottom ring (91), and the top of the support spring (94) abuts against the mounting top ring (92).

3. The opening protection device according to claim 2, characterized in that, The top surface of the mounting bottom ring (91) is provided with a guide sleeve (913), and the bottom surface of the mounting top ring (92) is provided with a guide rod (922) inserted into the guide sleeve (913).

4. The opening protection device according to claim 3, characterized in that, The number of guide sleeves (913) is not less than three, and the guide sleeves (913) are evenly spaced around the top surface of the mounting bottom ring (91); the number of guide rods (922) in the mounting top ring (92) is the same as the number of guide sleeves (913).

5. A hole protection device according to claim 2, characterized in that, The inner edge of the mounting bottom ring (91) is provided with a downward flange (911); the inner edge of the mounting top ring (92) is provided with an upward flange (921).

6. The opening protection device according to claim 2, characterized in that, The bottom surface of the mounting base ring (91) is provided with a first arrangement groove (914) and a first magnetic sheet (915) is provided in the first arrangement groove (914); the annular positioning seat (4) is provided with a second arrangement groove (71) on the bottom surface of the arrangement ring groove (7) and a second magnetic sheet (72) for attracting the first magnetic sheet (915) is provided in the second arrangement groove (71).

7. The opening protection device according to claim 2, characterized in that, The mounting top ring (92) has an abutment block (923) on the side facing the protective cover plate (2) for the protective cover plate (2) to abut against, and the mounting top ring (92) has a mounting groove (924) for the abutment block (923) to be arranged.

8. A hole protection device according to claim 1, characterized in that, The top of the annular positioning seat (4) is provided with a limiting ring (42) for abutting and engaging with the upper edge of the opening.

9. A hole protection device according to claim 1, characterized in that, The protective cover (2) has a handle groove (22) on its top, and an operating handle (23) is provided in the handle groove (22) of the protective cover (2).

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