A retractable safety cover plate for building duct well openings

Abstract

The utility model relates to the field of pipeline well engineering cover plate, specifically is a kind of building pipeline well hole retractable safety protection cover plate, including support cylinder and with support cylinder each other nested sliding connection have telescopic protection cover plate assembly, telescopic protection cover plate assembly includes telescopic protection cylinder, telescopic protection cylinder top is equipped with cover plate, telescopic protection cylinder lower part is inlayed in the annular cavity of support cylinder, annular cavity inside is equipped with the annular support body for the elastic support telescopic protection cylinder, telescopic protection cylinder's both sides outer wall is equipped with the adjusting mechanism for adjusting the up-down height position of cover plate. The utility model is driven telescopic protection cylinder to expand in support cylinder inside by rotating adjusting screw rod through screw rod sliding block and L type handrail, to adjust the height of cover plate;Satisfy the pipeline well hole of different height installation platform and cover plate matching installation, facilitate installation and maintenance, improve the efficiency of building pipeline well hole cover plate construction installation.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover plates, specifically a retractable safety protection cover plate for building manhole openings. Background Technology

[0002] Building pipe shafts are vertical shafts in buildings used to house vertical equipment pipelines. Depending on their purpose and location, they can be divided into building floor openings such as stairwells, elevator shafts, and reserved openings, and road and bridge openings such as drainage shafts and cable trench openings.

[0003] However, there is a mismatch between the height of the installation platform and the height of the cover plate at the existing building pipe well opening. Since the protective cover plate of the well opening cannot be extended or adjusted, it cannot adapt to the installation height of different reserved installation platforms, which is inconvenient for installation and maintenance, and will reduce the efficiency of construction and installation of building pipe well opening cover plates.

[0004] To address this, a retractable safety cover for building pipe well openings is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a retractable safety protection cover for building pipe well openings, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the specific technical solution adopted by this utility model is as follows:

[0007] A retractable safety cover for a building pipe well opening includes a support cylinder and a retractable protective cover assembly nested and slidably connected to the support cylinder. The retractable protective cover assembly includes a retractable protective cylinder with a cover plate at the top and the lower part of the retractable protective cylinder embedded in an annular cavity of the support cylinder. An annular support body for elastically supporting the retractable protective cylinder is installed inside the annular cavity, and adjustment mechanisms for adjusting the height of the cover plate are installed on the outer walls of both sides of the retractable protective cylinder.

[0008] Furthermore, a support spring connected to the bottom of the annular support body is installed at the bottom of the annular cavity, and the annular support body is slidably disposed within the annular cavity.

[0009] Furthermore, the adjustment mechanism includes an adjustment screw, which is installed in the sliding grooves on the outer walls of both sides of the telescopic protective cylinder through a screw seat. The top of the adjustment screw extends to the inside of the cover plate and is connected to a handle. The adjustment screw is equipped with a screw slider, which is connected to the L-shaped connecting rods on both sides of the support cylinder through the screw slider.

[0010] Furthermore, a movable cover plate is threadedly connected to the cover plate via a threaded boss. The movable cover plate has vents around its perimeter and a partition is provided on the inner side of the cover plate, with an observation port on the partition.

[0011] Furthermore, the bottom of the support cylinder is provided with a base, which is installed on an mounting platform inside the pipe well opening.

[0012] Furthermore, a reinforcing rib is installed in the middle position inside the support cylinder.

[0013] This utility model has the following features and beneficial effects:

[0014] This invention uses a rotating adjusting screw to drive a telescopic protective cylinder to extend upwards inside the support cylinder via a screw slider and an L-shaped railing, thereby adjusting the height of the cover plate. This allows for matching and installation of the cover plate with pipe well openings at different heights, facilitating installation and maintenance, and improving the efficiency of building pipe well opening cover plate construction and installation. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the support cylinder in this utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the isometric sectional view of the mid-longitudinal section;

[0019] Figure 4 This is a schematic diagram of the telescopic protective cover assembly in this utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the isometric sectional view of the mid-longitudinal section;

[0021] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0022] Explanation of icon numbers:

[0023] 1. Support cylinder; 2. Adjustment mechanism; 21. Adjusting screw; 22. Screw slider; 23. Handle; 3. Telescopic protective cylinder; 4. Cover plate; 41. Partition plate; 42. Threaded boss; 5. Movable cover plate; 51. Vent; 6. Annular support body; 61. Support spring; 10. Pipe well opening; 11. L-shaped connecting rod; 12. Base; 13. Annular cavity; 14. Reinforcing rib plate. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

[0026] like Figure 1-5 As shown, a retractable safety cover for a building pipe well opening includes a support cylinder 1 and a retractable protective cover assembly nested and slidably connected to the support cylinder 1. The retractable protective cover assembly includes a retractable protective cylinder 3, with a cover plate 4 at the top of the retractable protective cylinder 3. The lower part of the retractable protective cylinder 3 is embedded in an annular cavity 13 of the support cylinder 1. An annular support body 6 for elastically supporting the retractable protective cylinder 3 is installed inside the annular cavity 13. Adjustment mechanisms 2 for adjusting the vertical position of the cover plate 4 are installed on the outer walls of both sides of the retractable protective cylinder 3.

[0027] like Figure 3 As shown, in order to stably support each other within the annular cavity 13 of the telescopic protective cylinder 3 and the support cylinder 1, a support spring 61 connected to the bottom of the annular support body 6 is installed at the bottom of the annular cavity 13. The annular support body 6 is slidably disposed within the annular cavity 13. The support spring 61 applies an upward elastic force to the telescopic protective cylinder 3, thereby making the telescopic protective cylinder 3 and the support cylinder 1 more securely connected in a telescopic nesting manner.

[0028] like Figure 4-6 As shown, in order to adjust the height of the cover plate 4, the adjustment mechanism 2 includes an adjustment screw 21. The adjustment screw 21 is installed in the sliding grooves on both sides of the outer wall of the telescopic protective cylinder 3 through a screw seat. The top of the adjustment screw 21 passes through to the inside of the cover plate 4 and is connected to a handle 23. The adjustment screw 21 is provided with a screw slider 22, and is connected to the L-shaped connecting rods 11 on both sides of the support cylinder 1 through the screw slider 22. The handle 23 rotates the adjustment screw 21, which drives the telescopic protective cylinder 3 to extend upward inside the support cylinder 1 through the screw slider 22 and the L-shaped railing 11, thereby adjusting the height of the cover plate 4 to meet the height of the installation platform of the pipe inlet 10.

[0029] A movable cover plate 5 is threadedly connected to the cover plate 4 via a threaded boss 42. The movable cover plate 5 has vents 51 around its perimeter. A partition 41 is provided on the inner side of the cover plate 4, and an observation port is provided on the partition 41.

[0030] The bottom of the support cylinder 1 is provided with a base 12, which is installed on the mounting platform inside the pipe well opening 10.

[0031] A reinforcing rib plate 14 is installed in the middle of the inside of the support cylinder 1, which makes the support platform 1 more stable when used.

[0032] In use, the movable cover plate 5 is opened, and the adjusting screw 21 is rotated via the handle 23, which, through the screw slider 22 and the L-shaped railing 11, causes the telescopic protective cylinder 3 to extend upward inside the support cylinder 1. This adjusts the height of the cover plate 4 to meet the height of the installation platform at the pipe inlet 10. The support cylinder 1 is then placed inside the pipe well opening 10, so that the base 12 of the support cylinder 1 is installed on the mounting platform inside the pipe well opening 10. After installation, the adjusting screw 21 is rotated in the opposite direction to retract the telescopic protective cylinder 3 into the annular cavity 1 of the support cylinder 1. Within 3, the support spring 61 below the annular support body 6 is simultaneously compressed, and the support spring 61 applies an upward elastic force to the telescopic protective cylinder 3, thereby making the telescopic protective cylinder 3 and the support cylinder 1 more securely connected in a telescopic nesting manner; the cover plate 4 receives certain support; and the cover plate 4 is adjusted and placed at the opening of the pipe well 10. Finally, the movable cover plate is screwed on. The telescopic protective cover plate assembly satisfies the matching installation of the pipe well opening 10 and the cover plate 4 for installation platforms of different heights, which facilitates installation and maintenance and improves the efficiency of construction and installation of building pipe well opening cover plates.

Claims

1. A retractable safety cover for building pipe well openings, characterized in that, The system includes a support cylinder (1) and a telescopic protective cover assembly that is nested and slidably connected to the support cylinder (1). The telescopic protective cover assembly includes a telescopic protective cylinder (3), with a cover plate (4) on the top of the telescopic protective cylinder (3). The lower part of the telescopic protective cylinder (3) is embedded in the annular cavity (13) of the support cylinder (1). An annular support body (6) for elastically supporting the telescopic protective cylinder (3) is installed inside the annular cavity (13). Adjustment mechanisms (2) for adjusting the height of the cover plate (4) are installed on the outer walls of both sides of the telescopic protective cylinder (3).

2. The retractable safety protective cover for building pipe well openings as described in claim 1, characterized in that: A support spring (61) connected to the bottom of the annular support (6) is installed at the bottom of the annular cavity (13), and the annular support (6) is slidably disposed in the annular cavity (13).

3. The retractable safety protective cover for building pipe well openings as described in claim 1, characterized in that: The adjustment mechanism (2) includes an adjustment screw (21), which is installed in the grooves on the outer walls of the telescopic protective cylinder (3) through a screw seat. The top of the adjustment screw (21) extends to the inside of the cover plate (4) and is connected to a handle (23). The adjustment screw (21) is provided with a screw slider (22), and is connected to the L-shaped connecting rods (11) on both sides of the support cylinder (1) through the screw slider (22).

4. The retractable safety protective cover for building pipe well openings as described in claim 1, characterized in that: The cover plate (4) is threadedly connected to a movable cover plate (5) via a threaded boss (42). The movable cover plate (5) has vents (51) around its perimeter. A partition (41) is provided on the inner side of the cover plate (4), and an observation port is provided on the partition (41).

5. The retractable safety protective cover for building pipe well openings as described in claim 1, characterized in that: The bottom of the support cylinder (1) is provided with a base (12), which is installed on the mounting platform inside the pipe well opening (10).

6. The retractable safety protective cover for building pipe well openings as described in claim 1, characterized in that: A reinforcing rib plate (14) is installed in the middle of the inside of the support cylinder (1).

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