Adjustable escalator intermediate support structure and method of installation

Abstract

This invention discloses an adjustable escalator intermediate support structure, including a concrete support layer, a self-leveling layer above the concrete support layer, an anti-slip rubber plate above the self-leveling layer, a steel plate on the anti-slip rubber plate, and an adjusting screw mother plate above the steel plate. The adjusting screw mother plate is connected to the steel plate by multiple adjusting screws, each of which is equipped with an anti-loosening nut. A support assembly is mounted on the adjusting screw mother plate, including a support block fixedly installed on the adjusting screw mother plate. This invention uses multiple adjusting screws in the upper support component, avoiding the defect of insufficient connection between the upper and lower support structures due to construction errors in the lower support structure and escalator installation. Furthermore, the anti-loosening nuts on the adjusting screws ensure their stability, resulting in lower on-site installation accuracy requirements and less difficulty.

Description

Technical Field

[0001] This invention relates to the field of escalator technology, and in particular to an adjustable escalator intermediate support structure and its installation method. Background Technology

[0002] As people's living standards improve, escalators are becoming more and more widely used. They are ubiquitous in public places and are widely used in various large buildings, shopping malls, rail transit, high-speed rail, airports and other densely populated areas. They are a modern three-dimensional transportation tool.

[0003] When the span of an escalator or walkway is large, or for the stability of the truss operation, it is usually necessary to add intermediate supports on the completed structure. The intermediate support structure currently used is a cast-in-place concrete structure. The top of the cast-in-place concrete structure is not leveled, the contact surface between the concrete structure and the support plate is not tight, the support plate is a pre-fabricated product and its height cannot be adjusted, and the on-site installation requires high precision and is very difficult. Summary of the Invention

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: the intermediate support structure currently used is a cast-in-place concrete structure, the top of the cast-in-place concrete structure is not leveled, the contact surface between the concrete structure and the support plate is not tight, the support plate is a pre-processed product and its height is not adjustable, and the on-site installation requires high precision and is difficult. Therefore, this invention proposes an adjustable escalator intermediate support structure and its installation method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable escalator intermediate support structure includes a concrete support layer, a self-leveling layer above the concrete support layer, an anti-slip rubber plate above the self-leveling layer, a steel plate on the anti-slip rubber plate, an adjusting screw mother plate above the steel plate, the adjusting screw mother plate being connected to the steel plate via multiple adjusting screws, and each adjusting screw having an anti-loosening nut installed on it.

[0007] A support assembly is installed on the adjusting screw mother plate. The support assembly includes a support block fixedly installed on the adjusting screw mother plate. Two support columns are slidably connected to the support block. Two fixing plates are fixedly connected to each support column. A rotating block is rotatably connected between the two fixing plates. A connecting plate is fixedly installed on the rotating block. Multiple third fastening bolts are threaded onto the connecting plate.

[0008] Two bidirectional lead screws are provided above the support block. Each bidirectional lead screw is provided with a limit component. The limit component includes two fixing sleeves that are threadedly connected to the bidirectional lead screw. Each fixing sleeve is connected to multiple fixing rods through a connecting block.

[0009] Preferably, each of the rotating blocks is fixedly connected to two symmetrically arranged mounting blocks, and the mounting blocks are provided with multiple grooves, with each fixing rod engaging with the corresponding groove.

[0010] Preferably, each of the fixed sleeves is fixedly connected to a first telescopic rod, and one end of the first telescopic rod is fixedly connected to the corresponding fixed plate.

[0011] Preferably, each of the bidirectional lead screws has a circular plate fixedly connected to one end. The circular plate is connected to the fixed plate through a threaded rod, and the fixed plate has multiple circular grooves for connecting the threaded rod.

[0012] Preferably, each of the fixed plates is rotatably connected to one side of a second telescopic rod, each of the connecting plates is fixedly connected to two rectangular plates, each of the rectangular plates is provided with multiple threaded holes, and each of the second telescopic rods is connected to the rectangular plate by a first fastening bolt.

[0013] Preferably, the support block has a sliding cavity for vertical movement of the support column, and the support column has a plurality of equally spaced slots. The support block is connected to the slots by a second fastening bolt.

[0014] Preferably, the cross-section of each connecting block is L-shaped, the plurality of fixing rods are circular, the connecting block and the plurality of fixing rods are fixedly connected, and the connecting block and the corresponding fixing sleeve are fixedly connected.

[0015] Preferably, each of the rotating blocks is rotatably connected to the corresponding fixed plate, and the cross-section of the rotating block is T-shaped.

[0016] An adjustable escalator intermediate support structure, the installation method of which includes the following steps:

[0017] S1: Construction of lower concrete support: According to the design drawings, the site is measured and laid out. Rebar is installed on the original structure to ensure the depth of the rebar and that the rebar adhesive fills the holes. The formwork is erected, the concrete is poured, and the concrete is watered and cured after the formwork is removed.

[0018] S2: Cement self-leveling leveling: Before applying self-leveling cement, the base surface must be ground with a grinder to remove impurities, dust, and sand particles from the contact surface. Any areas with significant elevation changes should be ground down. After grinding, sweep away the dust and vacuum the surface. Pour the self-leveling cement onto the surface and use a toothed roller to spread it out. The thickness of the self-leveling cement should be controlled within mm. After it has naturally leveled, use a toothed roller to roll it horizontally and vertically to release any air and prevent bubbling. The self-leveling cement needs one hour to dry completely. The next step of construction should not be carried out before it is completely dry.

[0019] S3: Install anti-slip rubber sheet and steel plate: Place the prepared anti-slip rubber sheet and steel plate on the completed cement self-leveling layer in sequence. The thickness of the anti-slip rubber sheet is mm, and the thickness of the steel plate is mm.

[0020] S4: Escalator Installation: The lifting points of the escalator can only be the lifting bolts or lifting feet on the supporting angle steel at both ends. Depending on the structure of the escalator lifting points, lifting rings or rope end fixing loops can be used to suspend the steel wire rope. Winches, chain hoists, pulleys, and pulley blocks are used to send most of the escalator truss to the shaft. The head section is vertically pulled by winches, pulleys, and pulley blocks, and the tail section is vertically lifted by chain hoists. A winch is also used to pull the tail section to prevent the truss from suddenly moving forward when the head section is lifted. This is done by "lifting and releasing". After the truss head section is higher than the upper support position, the tail section first falls onto the lower support mounting plate, and the head section slowly falls onto the upper support mounting plate. The overlap length of the upper and lower supports should be basically equal. After hoisting into place, the upper and lower support supports of the truss, the height difference between the truss and the final ground, the center line of the escalator truss and the shaft installation center, and the position of the escalator are adjusted respectively.

[0021] S5: Installation of the intermediate support superstructure: The processed superstructure is installed together with the truss using multiple third fastening bolts to ensure a secure installation;

[0022] S6: Support screw adjustment and locking: After the upper support structure is installed, adjust multiple adjusting screws to make the upper support and lower support in close contact. The weight of the upper part is transferred to the completed concrete structure through the intermediate support. After the adjusting screws are adjusted, install the anti-loosening nut to ensure the stability of the connection of the support parts.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The upper support component uses multiple adjusting screws to avoid the defect that the upper and lower support structures cannot be tightly connected due to the construction of the lower support structure and the installation of the escalator. In addition, anti-loosening nuts are set on the adjusting screws to ensure the stability of the adjusting screws. The on-site installation accuracy requirements are low and the difficulty is small.

[0025] 2. Use cement self-leveling technology to ensure that the lower support surface is absolutely level;

[0026] 3. Anti-slip rubber plates are added between the lower supporting steel plate and the structure to ensure the stability of the supporting steel plate;

[0027] 4. By rotating the rotating block and the fixed plate relative to each other, the tilt angle of the connecting plate can be adjusted. Rotate the circular plate until each fixed rod engages with its corresponding groove, so that the tilt angle of the connecting plate remains stable. Rotate the threaded rod to engage with its corresponding circular groove. The angle of the connecting plate can be adjusted according to the actual situation, which makes the reliability of the intermediate support structure higher and is beneficial to the use of the intermediate support structure. Attached Figure Description

[0028] Figure 1 This is a front structural diagram of an adjustable escalator intermediate support structure proposed in this invention.

[0029] Figure 2 This is a side view of an adjustable escalator intermediate support structure proposed in this invention.

[0030] Figure 3 This is a schematic diagram of the rear structure of an adjustable escalator intermediate support structure proposed in this invention;

[0031] Figure 4 A partial front view of the fixed plate and the bidirectional lead screw.

[0032] Figure 5 This is a three-dimensional structural diagram of the back of the connecting plate and the rotating block.

[0033] In the diagram: 1 Concrete support layer, 2 Anti-slip rubber plate, 3 Adjusting screw base plate, 4 Adjusting screw, 5 Self-leveling layer, 6 Steel plate, 7 Anti-loosening nut, 8 Connecting plate, 9 Fixing plate, 10 Support block, 11 Support column, 12 Third fastening bolt, 13 Second telescopic rod, 14 Second fastening bolt, 15 Rectangular plate, 16 Threaded hole, 17 Rotating block, 18 Round plate, 19 Bidirectional threaded rod, 20 Fixing sleeve, 21 First fastening bolt, 22 Mounting block, 23 First telescopic rod, 24 Threaded rod, 25 Connecting block, 26 Fixing rod. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Reference Figure 1-5An adjustable escalator intermediate support structure includes a concrete support layer 1, a self-leveling layer 5 above the concrete support layer 1, an anti-slip rubber plate 2 above the self-leveling layer 5, a steel plate 6 on the anti-slip rubber plate 2, an adjusting screw mother plate 3 above the steel plate 6, the adjusting screw mother plate 3 being connected to the steel plate 6 via multiple adjusting screws 4, each adjusting screw 4 being fitted with an anti-loosening nut 7, and a support assembly being mounted on the adjusting screw mother plate 3. The support assembly includes a support block 10 fixedly mounted on the adjusting screw mother plate 3, two support columns 11 slidably connected to the support block 10, two fixing plates 9 fixedly connected to each support column 11, a rotating block 17 rotatably connected between the two fixing plates 9, a connecting plate 8 fixedly mounted on the rotating block 17, and multiple third fastening bolts 12 threadedly connected to the connecting plate 8.

[0036] Two bidirectional lead screws 19 are provided above the support block 10. Each bidirectional lead screw 19 is provided with a limit component. The limit component includes two fixing sleeves 20 that are threadedly connected to the bidirectional lead screw 19. Each fixing sleeve 20 is connected to multiple fixing rods 26 through a connecting block 25. The cross-section of each connecting block 25 is set in an L-shape. The multiple fixing rods 26 are set in a circle. The connecting block 25 and the multiple fixing rods 26 are fixedly connected. The connecting block 25 and the corresponding fixing sleeve 20 are fixedly connected. Each rotating block 17 is rotatably connected to the corresponding fixing plate 9. The cross-section of the rotating block 17 is set in a T-shape.

[0037] Each rotating block 17 is fixedly connected to two symmetrically arranged mounting blocks 22. The mounting blocks 22 have multiple grooves. Each fixing rod 26 is engaged with the corresponding groove. Each fixing sleeve 20 is fixedly connected to a first telescopic rod 23. One end of the first telescopic rod 23 is fixedly connected to the corresponding fixing plate 9. One end of each bidirectional screw 19 is fixedly connected to a circular plate 18. The circular plate 18 is connected to the fixing plate 9 through a threaded rod 24. The fixing plate 9 has multiple circular grooves for connecting the threaded rod 24, so that the rotating block 17 and the fixing plate 9 rotate relative to each other, and the tilt angle of the connecting plate 8 can be adjusted.

[0038] After the tilt angle of the connecting plate 8 is adjusted, the circular plate 18 is rotated, and the bidirectional lead screw 19 rotates simultaneously. The two fixed sleeves 20 move along the bidirectional lead screw 19 simultaneously, and the distance between the two fixed sleeves 20 decreases. Under the transmission action of the connecting block 25, each fixed rod 26 moves simultaneously until each fixed rod 26 is engaged with the corresponding groove, thereby preventing the mounting block 22 and the rotating block 17 from rotating, keeping the tilt angle of the connecting plate 8 stable and the tilt angle of the rotating block 17 unchanged. When the threaded rod 24 is rotated, during the threaded connection between the threaded rod 24 and the circular plate 18, one end of the threaded rod 24 will engage with the corresponding circular groove on the fixed plate 9, thereby preventing the circular plate 18 from rotating. The angle of the connecting plate 8 can be adjusted better according to the actual situation, making the reliability of the intermediate support structure higher and facilitating its use.

[0039] Each fixed plate 9 has a second telescopic rod 13 rotatably connected to one side. Each connecting plate 8 has two rectangular plates 15 fixedly connected to it. Each rectangular plate 15 has multiple threaded holes 16. Each second telescopic rod 13 is connected to the rectangular plate 15 by a first fastening bolt 21. The second telescopic rod 13 is rotated and deformed until its surface faces the corresponding threaded hole 16 on the rectangular plate 15. Then, the first fastening bolt 21 is rotated to make it threadedly connected to the threaded hole 16 until one end of the first fastening bolt 21 is engaged with the second telescopic rod 13. Under the support of the second telescopic rod 13, the support strength of the connecting plate 8 is improved, which is beneficial for better support.

[0040] The support block 10 has a sliding cavity for vertical movement of the support column 11. The support column 11 has multiple slots arranged at equal intervals. The support block 10 is connected to the slots by the second fastening bolt 14. By vertically moving the support column 11, the vertical height of the connecting plate 8 can be adjusted. After the vertical height of the connecting plate 8 is adjusted, the second fastening bolt 14 is rotated to make it threadedly connected to the support block 10 until one end of the second fastening bolt 14 is connected to the corresponding slot.

[0041] An adjustable escalator intermediate support structure, the installation method of which includes the following steps:

[0042] S1: Construction of lower concrete support: According to the design drawings, the site is measured and laid out. Rebar is installed on the original structure to ensure the depth of the rebar and that the rebar adhesive fills the holes. The formwork is erected, the concrete is poured, and the concrete is watered and cured after the formwork is removed.

[0043] S2: Cement self-leveling leveling: Before applying self-leveling cement, the base surface must be ground with a grinder to remove impurities, dust, and sand particles from the contact surface. Any areas with significant elevation changes should be ground down. After grinding, sweep away the dust and vacuum the surface. Pour the self-leveling cement onto the surface and use a toothed roller to spread it out. The thickness of the self-leveling cement should be controlled at 5mm. After it has naturally leveled, use a toothed roller to roll it horizontally and vertically to release the air and prevent bubbling. The self-leveling cement needs 8-24 hours to dry completely. The next step of construction should not be carried out before it is completely dry.

[0044] S3: Install anti-slip rubber sheet 2 and steel plate 6: Place the prepared anti-slip rubber sheet 2 and steel plate 6 on the completed cement self-leveling layer 5 in sequence. The thickness of anti-slip rubber sheet 2 is 20mm and the thickness of steel plate 6 is 2.5mm.

[0045] S4: Escalator Installation: The lifting points of the escalator can only be the lifting bolts or lifting feet on the supporting angle steel at both ends. Depending on the structure of the escalator lifting points, lifting rings or rope end fixing loops can be used to suspend the steel wire rope. Winches, chain hoists, pulleys, and pulley blocks are used to send most of the escalator truss to the shaft. The head section is vertically pulled by winches, pulleys, and pulley blocks, and the tail section is vertically lifted by chain hoists. A winch is also used to pull the tail section to prevent the truss from suddenly moving forward when the head section is lifted. This is done by "lifting and releasing". After the truss head section is higher than the upper support position, the tail section first falls onto the lower support mounting plate, and the head section slowly falls onto the upper support mounting plate. The overlap length of the upper and lower supports should be basically equal. After hoisting into place, the upper and lower support supports of the truss, the height difference between the truss and the final ground, the center line of the escalator truss and the shaft installation center, and the position of the escalator are adjusted respectively.

[0046] S5: Installation of the upper structure of the intermediate support: The processed upper support structure is installed together with the truss using multiple third fastening bolts 12 to ensure a secure installation;

[0047] S6: Support screw adjustment and locking: After the upper support structure is installed, adjust multiple adjusting screws 4 to make the upper support and lower support in close contact. The weight of the upper part is transferred to the completed concrete structure through the intermediate support. After the adjusting screws 4 are adjusted, install the anti-loosening nut 7 to ensure the stability of the connection of the support parts.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable escalator intermediate support structure, comprising a concrete support layer (1), characterized in that, A self-leveling layer (5) is provided above the concrete support layer (1), an anti-slip rubber plate (2) is installed above the self-leveling layer (5), a steel plate (6) is provided on the anti-slip rubber plate (2), an adjusting screw mother plate (3) is installed above the steel plate (6), the adjusting screw mother plate (3) is connected to the steel plate (6) by multiple adjusting screws (4), and an anti-loosening nut (7) is installed on each adjusting screw (4); A support assembly is installed on the adjusting screw mother plate (3). The support assembly includes a support block (10) fixedly installed on the adjusting screw mother plate (3). Two support columns (11) are slidably connected on the support block (10). Two fixing plates (9) are fixedly connected on each support column (11). A rotating block (17) is rotatably connected between the two fixing plates (9). A connecting plate (8) is fixedly installed on the rotating block (17). A plurality of third fastening bolts (12) are threaded on the connecting plate (8). Two bidirectional lead screws (19) are provided above the support block (10). Each bidirectional lead screw (19) is provided with a limit component. The limit component includes two fixing sleeves (20) that are threadedly connected to the bidirectional lead screw (19). Each fixing sleeve (20) is connected to multiple fixing rods (26) through a connecting block (25). Each of the rotating blocks (17) is fixedly connected to two symmetrically arranged mounting blocks (22), and the mounting blocks (22) are provided with multiple grooves, and each of the fixing rods (26) is engaged with the corresponding groove; Each of the bidirectional lead screws (19) is fixedly connected to a circular plate (18) at one end. The circular plate (18) is connected to the fixed plate (9) through a threaded rod (24). The fixed plate (9) has multiple circular grooves for connecting the threaded rod (24). Each of the fixed plates (9) is rotatably connected to a second telescopic rod (13) on one side. Each of the connecting plates (8) is fixedly connected to two rectangular plates (15). Each of the rectangular plates (15) is provided with multiple threaded holes (16). Each of the second telescopic rods (13) is connected to the rectangular plate (15) by a first fastening bolt (21). Each of the connecting blocks (25) has an L-shaped cross-section, and the plurality of fixing rods (26) are circular. The connecting blocks (25) and the plurality of fixing rods (26) are fixedly connected, and the connecting blocks (25) and the corresponding fixing sleeves (20) are fixedly connected. Each of the rotating blocks (17) is rotatably connected to the corresponding fixed plate (9), and the cross-section of the rotating block (17) is T-shaped.

2. The adjustable escalator intermediate support structure according to claim 1, characterized in that, Each of the fixed sleeves (20) is fixedly connected to a first telescopic rod (23), one end of the first telescopic rod (23) is fixedly connected to the corresponding fixed plate (9).

3. The adjustable escalator intermediate support structure according to claim 1, characterized in that, The support block (10) has a sliding cavity for the vertical movement of the support column (11), and the support column (11) has a plurality of slots arranged at equal intervals. The support block (10) is connected to the slots by a second fastening bolt (14).

4. An adjustable escalator intermediate support structure according to any one of claims 1-3, the installation method of which includes the following steps: S1: Construction of lower concrete support: According to the design drawings, the site is measured and laid out. Rebar is installed on the original structure to ensure the depth of the rebar and that the rebar adhesive fills the holes. The formwork is erected, the concrete is poured, and the concrete is watered and cured after the formwork is removed. S2: Cement self-leveling leveling: Before applying self-leveling cement, the base surface must be ground with a grinder to remove impurities, dust, and sand particles from the contact surface. Any areas with significant elevation changes should be ground down. After grinding, sweep away the dust and vacuum the surface. Pour the self-leveling cement onto the surface and use a toothed roller to spread it out. The thickness of the self-leveling cement should be controlled at 5mm. After it has naturally leveled, use a toothed roller to roll it horizontally and vertically to release the air and prevent bubbling. The self-leveling cement needs 8-24 hours to dry completely. The next step of construction should not be carried out before it is completely dry. S3: Install anti-slip rubber sheet (2) and steel plate (6): Place the prepared anti-slip rubber sheet (2) and steel plate (6) on the completed cement self-leveling layer (5) in sequence. The thickness of the anti-slip rubber sheet (2) is 20mm and the thickness of the steel plate (6) is 2.5mm. S4: Escalator Installation: The escalator can only be lifted from the lifting bolts or lifting feet on the supporting angle steel at both ends. Depending on the structure of the escalator lifting points, use lifting rings or rope end fixing loops to suspend the steel wire rope. Use winches, chain hoists, pulleys, and pulley blocks to send most of the escalator truss to the shaft. The head section is vertically pulled by winches, pulleys, and pulley blocks, and the tail section is vertically lifted by chain hoists. A winch is also used to pull the tail section to prevent the truss from suddenly moving forward when the head section is lifted, ensuring a "lift and release" action. After the truss head section is higher than the upper support position, the tail section first falls onto the lower support mounting plate, and the head section slowly falls onto the upper support mounting plate. The overlap length of the upper and lower supports should be basically equal. After hoisting into place, adjust the upper and lower support supports of the truss, adjust the height difference between the truss and the final ground, adjust the center line of the escalator truss and the shaft installation center, and adjust the position of the escalator. S5: Installation of the upper structure of the intermediate support: The processed upper support structure is installed together with the truss by multiple third fastening bolts (12) to ensure a secure installation; S6: Adjustment and locking of support screws: After the upper support structure is installed, adjust multiple adjusting screws (4) to make the upper support and the lower support in close contact. The weight of the upper part is transferred to the completed concrete structure through the intermediate support. After the adjusting screws (4) are adjusted, install the anti-loosening nut (7) to ensure the stability of the connection of the support parts.

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