Sliding roof manhole cover and rail linkage device and working method

Abstract

The application discloses a sliding roof manhole cover plate and rail linkage device and a working method, solves the problem of the existing technology that the lifting cover plate is time-consuming and laborious when being lifted, has the beneficial effects of convenient operation and construction space saving, and specifically has the following scheme: a sliding roof manhole cover plate and rail linkage device, which comprises a cover plate, the cover plate being slidable relative to a roof manhole; a handrail, the handrail comprising a handrail body, both ends of the handrail body being provided with insertion sections, the handrail body being connected with the cover plate, a plurality of open grooves being longitudinally arranged on one side of the insertion section, and adjacent two open grooves being spaced apart by a certain distance; a cylinder, the cylinder being fixed to a staircase, a recess being arranged in the cylinder, one end of the insertion section being inserted into the recess of the cylinder, a height adjusting assembly being arranged at the top end of the cylinder, the height adjusting assembly being provided with elastic locking tongues, the elastic locking tongues being capable of being inserted into the open grooves, and the elastic locking tongues being connected with a manual adjusting rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building engineering construction, and particularly relates to a sliding roof manhole cover and rail linkage device and working method. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] In building engineering construction, the roof manhole between floors for construction usually adopts the form of stairs plus railings. This form interferes with the walkway and is prone to the hidden danger of falling objects injuring people. The inventor finds that the conventional solution is to set an upturned cover, which is time-consuming and laborious to turn up and has safety hazards.

[0004] In addition, in building engineering, the stairs leading to the roof manhole need to be installed with stair handrails to ensure the safety of workers going up and down the stairs, but the stair handrails have a set height and will occupy the construction space. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a sliding roof manhole cover and rail linkage device, which effectively ensures personnel safety and construction space through the linkage of the cover and the rail.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0007] A sliding roof manhole cover and rail linkage device, comprising:

[0008] a cover, the cover being slidable relative to the roof manhole;

[0009] a support rod, the support rod comprising a support rod body, both ends of the support rod body being provided with an insertion section, the support rod body being connected with the cover, a plurality of open slots being longitudinally arranged on one side of the insertion section, adjacent two open slots being spaced apart by a set distance;

[0010] a cylinder, the cylinder being fixed to the stairs, the cylinder being provided with a recess inside, one end of the insertion section being inserted into the recess of the cylinder, a height adjustment assembly being arranged at the top end of the cylinder, the height adjustment assembly having an elastic lock tongue, the elastic lock tongue being insertable into the open slot, the elastic lock tongue being connected with a manual adjustment rod, the support rod being raised relative to the cylinder when the cover is moved, the elastic lock tongue being separated from the open slot where it is located after being pressed, the elastic lock tongue cooperating with the previous open slot to limit the height of the support rod.

[0011] The sliding roof manhole cover and rail linkage device described above, the lower surface of the cover being connected with the insertion section by a steel strand, whereby the cover drives the support rod to rise and fall during movement.

[0012] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the lower surface of the cover is provided with a first reel and a second reel, the steel strand comprises a first steel strand and a second steel strand, one end of the first steel strand and the second steel strand are fixedly connected with the first reel, the first steel strand is connected with one of the insertion segments after passing through the second reel, and the second steel strand is connected with the other insertion segment.

[0013] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the connection between the handrail body and the insertion segment is provided with a fixed pulley, the end of the insertion segment away from the handrail body is provided with an anchor, and the first steel strand and the second steel strand are connected with the anchor at the end of the insertion segment after passing through the fixed pulley, thereby ensuring reliable connection between the cover and the handrail.

[0014] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the first reel and the second reel are fixedly connected with the lower surface of the cover through a reel support, the first reel is arranged at one end adjacent to the cover, and the second reel is arranged at the second end adjacent to the cover, thereby ensuring reliable connection between the first steel strand and the second steel strand and the insertion segments on both sides of the handrail.

[0015] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the two sides of the roof manhole are provided with rails, and the cover is connected with a pulley which can move along the rails.

[0016] Further, the two ends of the rail are provided with rail stoppers, which limit the two ends of the cover to avoid the cover from being detached from the ends of the rail.

[0017] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the lower surface of the cover is connected with the pulley through a pulley support, and the pulley support is L-shaped.

[0018] The rail is supported by a rail support, the rail is a C-shaped rail, and the rail openings on the two sides are oppositely arranged.

[0019] The sliding roof manhole cover and railing linkage device as claimed in claim 1, wherein the height adjustment assembly comprises a box body connected with the cylinder, the elastic lock tongue is arranged in the box body, the elastic lock tongue comprises a limiting piece parallel to the axis of the cylinder, one side of the limiting piece is provided with a lock tongue matched with the open slot, the other side is provided with an elastic piece between the inner wall of the box body, the limiting piece is connected with the manual adjusting rod, and the manual adjusting rod is arranged through the box body.

[0020] The side of the lock tongue facing the bottom surface of the cylinder is an arc surface.

[0021] The sliding roof manhole cover and rail linkage device as described above, the recess of the cylinder supports a plurality of rotatable rollers, and the distance between adjacent two rollers is set.

[0022] In the second aspect, the application further provides a working method of the sliding roof manhole cover and rail linkage device, which includes the following contents:

[0023] When no one passes through, pull the manual adjusting rod to disengage the elastic lock tongue from the open slot where it is located at this time, the insertion section is not connected with the cylinder, and the cover plate is pushed to cover the roof manhole;

[0024] When someone passes through, the cover plate is moved relative to the roof manhole, the handrail is raised, the elastic lock tongue is disengaged from the open slot where it is located after being pressed, the handrail continues to rise, the elastic lock tongue cooperates with the previous open slot, the handrail continues to rise with the movement of the cover plate, and until the cover plate reaches the set position, the elastic lock tongue is engaged with the open slot to limit the height of the handrail.

[0025] The beneficial effects of the application are as follows:

[0026] 1) The application makes the slidable cover plate and the lifting handrail linked as a whole through the overall structure, realizes linkage, and the sliding of the cover plate drives the lifting movement of the handrail, which saves space, provides convenience for construction, saves time and labor, is convenient for workers to operate, and ensures the safety of workers passing through the roof manhole.

[0027] 2) In the application, the linkage device is provided, the insertion section is arranged at both ends of the handrail body, the insertion section cooperates with the cylinder, the insertion section is provided with an open slot, the cylinder is provided with a height adjusting assembly, the elastic lock tongue is pressed and disengaged from the open slot where it is located during the movement of the height adjusting assembly on the cylinder, the insertion section continues to move upward, the elastic lock tongue continues to be engaged in the open slot and then disengages, until the cover plate no longer moves, the elastic lock tongue is engaged in the new open slot, so that the handrail is kept at the set height.

[0028] 3) In the application, the lifting handrail is provided, when no one passes through, the handrail is retracted, which effectively saves the construction space, and when someone passes through, the handrail is raised, which ensures the safety of workers going up and down the stairs.

[0029] 4) The first reel and the second reel, the first steel wire and the second steel wire are arranged in the application, the handrail is connected from two directions, and the reliability of the connection between the cover plate and the handrail is ensured.

[0030] 5) The application provides the linkage device, solves the defects of the ordinary roof manhole cover, such as instability, time-consuming and labor-consuming opening and closing, and loud noise; the components can be produced in batches in advance, and the construction period is effectively saved.

[0031] 6) In the height adjustment component of the present invention, due to the setting of the elastic element, it is not only ensured that the locking tongue can be engaged in the opening groove, but also that it can be squeezed when the handrail is raised and then re-engaged in the new opening groove. The engagement of the elastic locking tongue with the opening groove realizes the limitation of the handrail height. Attached Figure Description

[0032] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0033] Figure 1 This is a schematic diagram of the opening of a sliding roof manhole cover and railing linkage device according to one or more embodiments of the present invention.

[0034] Figure 2 This is a schematic diagram of a sliding roof manhole cover and railing linkage device according to one or more embodiments of the present invention, in which the cover plate covers the manhole on the roof.

[0035] Figure 3 This is a cross-sectional view of the cover plate in a sliding roof manhole cover and railing linkage device according to one or more embodiments of the present invention.

[0036] Figure 4 This is a schematic diagram of the connection between the insertion section and the cylinder in a sliding roof manhole cover and railing linkage device according to one or more embodiments of the present invention.

[0037] Figure 5 This is a schematic diagram of the height adjustment component in a sliding roof manhole cover and railing linkage device according to one or more embodiments of the present invention.

[0038] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0039] The components include: 1. Manhole on the roof; 2. Cover plate; 2-1. Push-pull handrail; 3-1. First reel; 3-2. Second reel; 4. Reel bracket; 5-1. First steel strand; 5-2. Second steel strand; 6. Track; 6-1. First track brake pad; 6-2. Second track brake pad; 7. Track support; 8. Pulley; 9. Pulley bracket; 10. Fixed pulley; 11. Handrail; 11-1. Opening slot; 12. Cylinder; 12-1. Roller; 13. Anchor steel plate; 14. Height adjustment assembly; 14-1. Box; 14-2. Locking tongue; 14-3. Limiting rod; 14-4. Spring; 14-5. Manual adjustment rod. Detailed Implementation

[0040] It should be noted that the following detailed description is illustrative only, and is intended to provide further description of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0041] It is also important to note that the terms used herein are not intended to limit the particular embodiments of the present application to the preferred embodiments described. Rather, the terms are used only to describe specific embodiments of the present application. As used herein, unless otherwise indicated, the use of the singular includes the plural, and the use of the plural includes the singular. Also, as used herein, unless otherwise indicated, the use of the term "and / or," as well as the use of "or" means "and" or "or". In addition, it should also be understood that, when used in the present specification, the terms "comprise" and / or "comprising" are used to specify the presence of stated features, steps, operations, devices, components, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components, and / or combinations thereof.

[0042] As introduced in the background section, the problem of the prior art that the cover plate needs to be opened, in order to solve the above technical problems, the present application provides a sliding roof manhole cover plate and rail linkage device.

[0043] Embodiment one

[0044] In a typical embodiment of the present application, referring to Figure 1 and Figure 2 A sliding roof manhole cover plate and rail linkage device, comprising:

[0045] Cover plate 2, cover plate 2 is slidable relative to the roof manhole 1;

[0046] Supporting rod 11, supporting rod 11 includes a supporting rod body, both ends of the supporting rod body are provided with insertion segments, the supporting rod body is connected with the cover plate, a plurality of open slots 11-1 are longitudinally arranged on one side of the insertion segment, and adjacent two open slots 11-1 are spaced apart by a certain distance;

[0047] Cylinder 12, cylinder 12 is fixed to the staircase, the cylinder 12 is internally provided with a recess, the recess has a certain depth, one end of the insertion segment is inserted into the recess of the cylinder, the top end of the cylinder is provided with a height adjusting assembly 14, the height adjusting assembly 14 has an elastic lock tongue, the elastic lock tongue can be inserted into the open slot 11-1, the elastic lock tongue is connected with the manual adjusting rod 14-5, the supporting rod 11 is lifted relative to the cylinder 12 when the cover plate 2 moves, the elastic lock tongue is extruded and separated from the open slot where it is located, so that the supporting rod continues to rise, and the elastic lock tongue cooperates with the previous open slot to limit the height of the supporting rod.

[0048] Among them, it can be understood that both ends of the supporting rod 11 are provided with insertion segments, the supporting rod body is a straight rod, the supporting rod body is parallel to the bottom surface of the staircase, the length of the supporting rod body is determined according to the length of the staircase, the insertion segments at both ends of the supporting rod body are vertically arranged, the insertion segments have a certain length, and the length of the insertion segments is greater than the height of the cylinder.

[0049] In addition, the cross section of the barrel is circular or rectangular, and the cross section of the insertion section is consistent with the cross section of the hollow part of the barrel.

[0050] The length and width of the cover plate are adapted to the size of the manhole 1 on the roof, and the cover plate is made of metal.

[0051] In this embodiment, the lower surface of the cover plate 2 is connected to the insertion section by steel wire, so that the cover plate 2 drives the support rod to rise and fall during movement.

[0052] The lower surface of the cover plate 2 is provided with a first reel 3-1 and a second reel 3-2, the diameters of the first reel 3-1 and the second reel 3-2 are 40-70 mm, the steel wire includes a first steel wire 5-1 and a second steel wire 5-2, one end of each of the first steel wire and the second steel wire is fixedly connected to the first reel 3-1, the first steel wire is connected to one insertion section after winding around the second reel, and the second steel wire is connected to another insertion section.

[0053] Considering the movement of the second steel wire, when connecting the cover plate 2 and the support rod 11, a wiring gap with a set width, such as 20 mm, and a length set according to the size of the manhole on the roof is arranged on the ground to facilitate the movement of the second steel wire when the device is switched between the open and closed states.

[0054] In this embodiment, the connection part of the support rod body and the insertion section is provided with a fixed pulley 10, the fixed pulley 10 has a diameter of 50 mm, an anchor 13 is arranged at the end of the insertion section away from the support rod body, one side of the anchor 13 is fixed to the bottom end of the insertion section, the other side is provided with an opening to facilitate the passing of the steel wire, and the steel wire is fixed to the anchor 13, the first steel wire 5-1 is connected to the anchor 13 at the end of the insertion section after winding around the second reel once (from above the second reel) and then winding around the fixed pulley at the side of the second reel once (one turn around the fixed pulley), and the second steel wire is connected to the anchor 13 at the other side after winding around the fixed pulley once, thereby ensuring reliable connection of the cover plate and the support rod.

[0055] Reference Figure 3 As shown, the first reel 3-1 and the second reel 3-2 are respectively fixed to the lower surface of the cover plate by reel supports, the reel supports 4 are arranged on both sides of the lower surface of the cover plate 2, that is, the first reel is connected to the cover plate 2 by two reel supports 4, the reel support can be a steel column with a length of 20-30 mm, the first reel is arranged near one end of the cover plate 2, the second reel is arranged near the second end of the cover plate, and the distance between the first reel and the second reel is less than the length of the cover plate, thereby ensuring reliable connection of the first steel wire and the second steel wire to the insertion sections on both sides of the support rod.

[0056] The two sides of the roof manhole 1 in the length direction are respectively provided with tracks 6, the setting direction of the tracks 6 is consistent with the length direction of the stairs, the tracks 6 have a set length, and the length of the tracks is greater than or equal to twice the length of the roof manhole 1, so as to ensure that the roof manhole can be fully opened. The cover plate is connected with a pulley 8, the lower surface of the cover plate is connected with the pulley through a pulley support, the pulley support 9 is L-shaped, and when the cover plate is pushed, the pulley 8 can roll along the hollow part of the track 6. Specifically, the specifications of the pulley 8 are a diameter of 220 mm, and the specifications of the pulley support 9 are a diameter of 40 mm of a steel column.

[0057] Specifically, the track can be selected as a C-shaped steel track, the track openings on the two sides are oppositely arranged, the track is supported by a track support 7, the track support 7 is located on the two sides of the roof manhole 1, the specifications of the track support 7 are 150*300 mm square steel columns, the track supports 7 are symmetrically arranged along the direction of the roof manhole, four symmetrical track supports are arranged on one side of the roof manhole in the width direction, and four symmetrical track supports are arranged on the other side of the roof manhole in the width direction. In some examples, the specifications of the track 6 are a cross-sectional height of 250 mm, a cross-sectional width of 80 mm, a hem width of 20 mm, and a thickness of 5 mm, the yield strength of the steel is greater than or equal to 250 Mpa, the tensile strength is greater than or equal to 330 Mpa, and the wall thickness is not less than 5.0 mm, so as to ensure stable stress, the surface is treated by hot-dip galvanizing or epoxy spraying after forming, and other specifications can also be selected in other examples.

[0058] The two ends of the track 6 are respectively provided with track brake pieces, specifically first track brake pieces 6-1 and second track brake pieces 6-2, specifically, the first track brake pieces 6-1 and the second track brake pieces 6-2 are limit plates, the limit plates are fixed at the two ends of the track, the track brake pieces play a limiting role on the two ends of the cover plate, and the cover plate is prevented from being pulled out from the end of the track.

[0059] Regarding the height adjusting assembly, the height adjusting assembly 14 includes a box body 14-1, as shown in Figure 4 and Figure 5 The box body 14-1 is connected with the cylinder body 12, an elastic lock tongue is arranged in the box body 14-1, the elastic lock tongue includes a limiting piece, the limiting piece is parallel to the axis of the cylinder body, the limiting piece is a limiting rod 14-3, the two ends of the limiting rod can be provided with rollers, one side of the limiting piece is provided with a lock tongue 14-2 matched with an open slot, and the other side is provided with an elastic piece between the inner wall of the box body, the elastic piece is a spring 14-4, the spring is located on the two sides of the limiting rod, the middle part of the limiting rod is connected with a manual adjusting rod 14-5, the manual adjusting rod 14-5 is arranged through the box body 14-1, and the end of the manual adjusting rod located outside the box body 14-1 is provided with an annular ring, which not only facilitates the operation of the manual adjusting rod, but also prevents the manual adjusting rod from being completely inserted into the box body, thereby playing a limiting role.

[0060] The lock tongue has a set length and width, and is sharp, and the side of the lock tongue facing the bottom surface of the barrel is arc-shaped, so that the lock tongue is easily extruded out during the lifting of the barrel.

[0061] To ensure smooth lifting or lowering of the insertion section relative to the barrel, a plurality of rotatable rollers 12-1 are arranged at the concave portion of the barrel.

[0062] The linkage device provided in the embodiment has insertion sections arranged at both ends of the handrail body, the insertion sections are matched with the barrel 12, the insertion sections are provided with open grooves, the barrel is provided with height adjustment assemblies 14, the height adjustment assemblies 14 extrude the elastic lock tongues during the lifting of the barrel 12, so that the elastic lock tongues are separated from the open grooves where they are located, the insertion sections continue to lift, the elastic lock tongues are continuously clamped into the open grooves and then separated, until the cover plate no longer moves, the elastic lock tongues are clamped into new open grooves, so that the handrail is kept at a set height, and the device saves manpower and material resources during use, and ensures the integrity and safety of the device.

[0063] In some examples, the two height adjustment assemblies are located in the same plane, and the two height adjustment assemblies are respectively located on the outer sides of the barrel and at the top end of one side of the barrel.

[0064] In addition, it should be noted that the device provided by the application is only suitable for temporary construction engineering use and is not considered for permanent construction.

[0065] Embodiment Two

[0066] The working method of the sliding roof manhole cover plate and railing linkage device provided in the embodiment includes the following contents.

[0067] When no one passes through, the manual adjustment rod is pulled to separate the elastic lock tongue from the open groove where it is located, the insertion section is not connected with the barrel, and the cover plate is pushed to cover the roof manhole, so that the cover plate is in a closed state;

[0068] When someone passes through, the cover plate is moved relative to the roof manhole, the handrail is raised, the elastic lock tongue is extruded and separated from the open groove where it is located, the handrail continues to rise, the elastic lock tongue is matched with the previous open groove, the handrail continues to rise with the movement of the cover plate, the height of the handrail is adjusted, until the cover plate reaches a set position, the elastic lock tongue is clamped with the open groove to limit the height of the handrail, at this time, the cover plate is in an open state, and the handrail is in a raised state.

[0069] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A sliding roof manhole cover and railing linkage device, characterized in that, include: A cover plate that can slide relative to the manhole on the roof; The handrail includes a handrail body, both ends of which are provided with insertion sections. The handrail body is connected to a cover plate. Multiple opening slots are provided longitudinally on one side of the insertion section, and a set distance is set between two adjacent opening slots. The cylinder is fixed to the staircase. A recess is provided inside the cylinder. One end of the insertion section is inserted into the recess of the cylinder. A height adjustment component is provided at the top of the cylinder. The height adjustment component has a flexible locking tongue. The flexible locking tongue can be inserted into the opening slot. The flexible locking tongue is connected to the manual adjustment rod. When the cover plate moves, it drives the handrail to rise relative to the cylinder. After the flexible locking tongue is squeezed, it separates from the opening slot where it is located and continues to rise. The flexible locking tongue cooperates with the previous opening slot to limit the height of the handrail.

2. The sliding roof manhole cover and railing linkage device according to claim 1, characterized in that, The lower surface of the cover plate is connected to the insertion section via steel strands.

3. A sliding roof manhole cover and railing linkage device according to claim 2, characterized in that, The cover plate has a first spool and a second spool on its lower surface. The steel strand includes a first steel strand and a second steel strand. One end of the first steel strand and the second steel strand are both fixedly connected to the first spool. The first steel strand passes around the second spool and is connected to an insertion section. The second steel strand is connected to another insertion section.

4. A sliding roof manhole cover and railing linkage device according to claim 3, characterized in that, Fixed pulleys are provided at the connection between the handrail body and the insertion section. An anchor is provided at the end of the insertion section away from the handrail body. The first steel strand and the second steel strand are respectively connected to the anchor at the end of the insertion section after passing through a fixed pulley.

5. A sliding roof manhole cover and railing linkage device according to claim 3, characterized in that, The first and second reels are respectively fixed to the bottom of the cover plate by reel brackets. The first reel is positioned at one end near the cover plate, and the second reel is positioned at the second end near the cover plate.

6. A sliding roof manhole cover and railing linkage device according to claim 1, characterized in that, Tracks are provided on both sides of the manhole on the roof, and the cover plate is connected to pulleys that can move along the tracks. Track brakes are installed at both ends of the track.

7. A sliding roof manhole cover and railing linkage device according to claim 6, characterized in that, The lower surface of the cover plate is connected to the pulley via a pulley bracket, and the pulley bracket is L-shaped. The track is supported by track supports and is a C-shaped track with the two track openings facing each other.

8. A sliding roof manhole cover and railing linkage device according to claim 1, characterized in that, The height adjustment assembly includes a housing connected to the cylinder. The housing contains an elastic locking tongue, which includes a limiting member parallel to the axis of the cylinder. One side of the limiting member has a locking tongue that mates with the opening slot, and the other side has an elastic member between it and the inner wall of the housing. The limiting member is connected to the manual adjustment rod, which passes through the housing. The side of the latch facing the bottom of the cylinder is curved.

9. A sliding roof manhole cover and railing linkage device according to claim 1, characterized in that, The recessed part of the cylinder supports multiple rotatable rollers, with a set distance between adjacent rollers.

10. A method for operating a sliding roof manhole cover and railing linkage device according to any one of claims 1-9, characterized in that, Includes the following: When no one is passing through, pull the manual adjustment lever to disengage the elastic locking tongue from the opening slot it is in, so that the insertion section is not connected to the cylinder, and push the cover plate to cover the manhole on the roof. When someone passes through, the cover plate is pushed to move relative to the manhole on the roof, causing the handrail to rise. After the elastic locking tongue is squeezed, it disengages from its slot and continues to rise. The elastic locking tongue engages with the previous slot. As the cover plate moves, the handrail continues to rise until the cover plate reaches the set position. Then, the elastic locking tongue engages with the slot to limit the height of the handrail.

Images