Fixing support of chimney spiral stair

Abstract

Relates to the field of chimneys, and discloses a chimney spiral stair fixing support which comprises a chimney body, an embedded screw fixed to the outer surface of the chimney body, a spiral stair fixed to the outer side of the chimney body and fixedly connected with the embedded screw, and a handrail fixed to the upper end of the spiral stair. The supporting unit is arranged at the lower end of the spiral stair and is connected with the embedded screw rod; the supporting unit comprises a second fixing frame detachably fixed to the embedded screw and fixed to the lower end of the spiral stair. According to the utility model, the fixing piece is clamped and fixed at the lower end of the handrail, so that the handrail and the spiral staircase are quickly and stably fixed, the handrail is more convenient to install and maintain, the construction difficulty and cost are reduced, the maintainability of equipment is improved, and the working efficiency is improved. And the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chimneys, in particular to a fixed support for a chimney spiral staircase. Background Art

[0002] In building design, especially in industrial plants, high-rise buildings or special-purpose buildings (such as power plants, chemical plants, etc.), chimneys are important exhaust facilities, and their structural design and safety are of vital importance. With the diversification of building design and the increase in functional requirements, many chimneys not only need to meet basic exhaust functions, but also need to take into account the convenience of personnel inspection and maintenance. Therefore, setting up a spiral staircase on the outside of the chimney has become a common solution. When installing the stairs, the embedded parts of the stairs are pre-embedded simultaneously with the construction of the barrel wall structure, and the platform and steps are installed from the bottom to the top. During the installation process, a safety rope is set on the upper construction platform, and the operators wear safety belts and safety ropes to install upwards.

[0003] The existing equipment has the following disadvantages: since the existing installation method generally requires high-altitude work, when installing a spiral staircase, bolts are generally used for fixing, which is not convenient for quick assembly of handrails and steps. The staff needs to spend more physical strength and time to fix the handrails and steps, which increases the labor intensity of the staff and reduces the efficiency of disassembly and assembly of the handrails.

[0004] Therefore, the present application now proposes a fixed support for a chimney spiral staircase to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fixed support for a chimney spiral staircase to solve the above-mentioned problem that it is inconvenient to quickly assemble the handrails and steps, the workers need to spend more physical strength and time to fix the handrails and steps, which increases the labor intensity of the workers and reduces the efficiency of disassembly and assembly of the handrails.

[0006] To achieve the above object, the utility model provides the following technical solution: a fixed support for a chimney spiral staircase, comprising a chimney body, an embedded screw fixed to the outer surface of the chimney body, a spiral staircase fixed to the outside of the chimney body and fixedly connected to the embedded screw, and a handrail fixed to the upper end of the spiral staircase, and also comprising:

[0007] A support unit, arranged at the lower end of the spiral staircase and connected to the embedded screw rod, for supporting and fixing the spiral staircase;

[0008] The support unit comprises:

[0009] A second fixing frame is detachably fixed on the embedded screw and fixed to the lower end of the spiral staircase, and is used to support the spiral staircase;

[0010] A fixing member is arranged on the second fixing frame and connected to the lower end of the armrest, and is used for fixing the armrest.

[0011] Wherein, the handrail is inserted into the spiral staircase and the second fixing frame, a limiting block is fixed at the upper end of the handrail, and a bottom ring is fixed at the lower end of the handrail.

[0012] Among them, the fixing part includes a base plate arranged at the lower end of the second fixing frame, a fixing ring arranged on the side of the base plate close to the armrest, and an adjusting device arranged on the base plate for adjusting the installation position of the fixing ring, and the fixing ring fixing sleeve is arranged on the armrest at the upper end of the base ring.

[0013] Among them, the adjusting device includes a connecting frame fixed at the lower end of the base plate close to the armrest, a fixed shaft rotatably arranged on the connecting frame, a pressing plate rotatably arranged on the fixed shaft, and a torsion spring sleeved on the fixed shaft and abutting against the base plate and the pressing plate, a connecting ring is fixed on one side of the fixing ring close to the pressing plate, and the connecting ring is rotatably passed through both sides of the pressing plate.

[0014] A fixing plate is fixed to the middle of the lower end of the base plate, a through hole is provided on the pressing plate at a position corresponding to the fixing plate, and fixing bolts for fixing the pressing plate to the fixing plate are arranged on the fixing plate.

[0015] Wherein, the bottom plate is fixedly connected to the second fixing frame by fixing screws.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The staff of the utility model fixes the first fixing frame and the second fixing frame to the set position of the embedded screw on the chimney body, and then installs the spiral staircase on the first fixing frame and the second fixing frame one by one, and then installs the handrail at the set position on the spiral staircase, and fixes it to the lower end of the handrail through the fixing piece, and quickly and stably fixes the handrail to the spiral staircase, making the installation and maintenance process of the handrail more convenient, reducing the construction difficulty and cost. The first fixing frame and the second fixing frame are fixed with the embedded screw by bolts, which is convenient for disassembly and replacement when necessary, improving the maintainability of the equipment and reducing the labor intensity of the staff.

[0018] 2. The utility model rotates the pressing plate to flip it along the fixed axis, and then the pressing plate rotates counterclockwise, driving the connecting ring to move to the bottom of the handrail, and then the fixing ring moves to the bottom of the handrail, and then the fixing ring is swung, and the fixing ring is sleeved on the handrail and located above the bottom ring, and then the pressing plate is pressed to rotate clockwise along the fixed axis, and then the fixing ring moves to the side close to the bottom plate. When the pressing plate is reset, the through hole on the pressing plate passes through the fixing plate, and then the fixing bolts are fixed to the fixing plate, thereby fixing the pressing plate to the bottom plate, improving the stability of the fixing ring and the handrail, and fixing the handrail to the second fixing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure in one embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of an embodiment of the utility model in a front view;

[0021] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model when viewed from above;

[0022] Figure 4 It is a structural schematic diagram of fixing the support unit and the spiral staircase in one embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the connection between the fixing member and the second fixing frame in one embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the explosion of the fixing member in one embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the connection between the pressing plate and the fixing ring in one embodiment of the utility model;

[0026] Figure 8 It is a schematic structural diagram of the connection between the fixing ring and the bottom ring in one embodiment of the utility model.

[0027] In the figure: 1. chimney body; 11. embedded screw; 2. spiral staircase; 3. handrail; 31. limit block; 32. bottom ring; 4. support unit; 41. first fixing frame; 42. second fixing frame; 43. fixing piece; 431. bottom plate; 4311. fixing plate; 4312. fixing bolt; 432. fixing screw; 433. connecting frame; 434. fixing shaft; 435. pressing plate; 4351. through hole; 436. torsion spring; 437. connecting ring; 438. fixing ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-8 The utility model provides a technical solution: a fixed support for a chimney spiral staircase, comprising a chimney body 1, an embedded screw 11 fixed to the outer surface of the chimney body 1, a spiral staircase 2 fixed to the outside of the chimney body 1 and fixedly connected to the embedded screw 11, and a handrail 3 fixed to the upper end of the spiral staircase 2, and also comprising:

[0030] The support unit 4 is arranged at the lower end of the spiral staircase 2 and connected to the embedded screw 11, and is used to support and fix the spiral staircase 2;

[0031] The support unit 4 comprises:

[0032] The second fixing frame 42 is detachably fixed on the embedded screw 11 and fixed to the lower end of the spiral staircase 2, and is used to support the spiral staircase 2;

[0033] A fixing member 43, which is disposed on the second fixing frame 42 and connected to the lower end of the armrest 3, and is used to fix the armrest 3;

[0034] A first fixing frame 41 is fixed to the lower end of the spiral staircase 2 , and a second fixing frame 42 is fixed to the lower end of the position where the handrail 3 needs to be installed on the spiral staircase 2 .

[0035] It should be noted that during work, the staff fixes the first fixing frame 41 and the second fixing frame 42 to the set position of the embedded screw 11 on the chimney body 1, and then installs the spiral staircase 2 on the first fixing frame 41 and the second fixing frame 42 one by one, and then installs the handrail 3 at the set position on the spiral staircase 2, and then fixes it to the lower end of the handrail 3 through the fixing piece 43, and quickly and stably fixes the handrail 3 to the spiral staircase 2, making the installation and maintenance process of the handrail 3 more convenient, reducing the construction difficulty and cost, the first fixing frame 41 and the second fixing frame 42 are fixed to the embedded screw 11 by bolts, which is convenient for disassembly and replacement when necessary, improving the maintainability of the equipment and reducing the labor intensity of the staff.

[0036] In one embodiment, the handrail 3 is passed through the spiral staircase 2 and the second fixing frame 42 , a limit block 31 is fixed at the upper end of the spiral staircase 2 , and a bottom ring 32 is fixed at the lower end of the handrail 3 .

[0037] This design, see Figure 5 The limit block 31 can limit the length of the handrail 3 inserted into the spiral staircase 2 and the second fixing frame 42, and the bottom ring 32 can limit the position of the fixing member 43, so that the fixing member 43 and the handrail 3 are fixed more stably.

[0038] In one embodiment, the fixing member 43 includes a base plate 431 arranged at the lower end of the second fixing frame 42, a fixing ring 438 arranged on the side of the base plate 431 close to the armrest 3, and an adjusting device arranged on the base plate 431 for adjusting the installation position of the fixing ring 438. The fixing ring 438 is fixedly sleeved on the upper end of the armrest 3 located at the bottom ring 32.

[0039] This design, see Figure 3-8 After the armrest 3 is inserted into the second fixing frame 42, the adjusting device is first rotated to drive the fixing ring 438 to move toward the side close to the bottom ring 32, and then the fixing ring 438 is sleeved on the bottom ring 32, and then the adjusting device is rotated to drive the fixing ring 438 to reset. The fixing sleeve is arranged at the upper end of the bottom ring 32 to fix the armrest 3 to the second fixing frame 42.

[0040] In one embodiment, the adjusting device includes a connecting frame 433 fixed to the lower end of the base plate 431 close to the armrest 3, a fixed shaft 434 rotatably set on the connecting frame 433, a pressing plate 435 rotatably set on the fixed shaft 434, and a torsion spring 436 sleeved on the fixed shaft 434 and abutting against the base plate 431 and the pressing plate 435. A connecting ring 437 is fixed to one side of the fixing ring 438 close to the pressing plate 435, and the connecting ring 437 is rotatably passed through both sides of the pressing plate 435.

[0041] This design, see Figure 4-8 , rotate the pressing plate 435 to make it flip over along the fixed axis 434, and then during the counterclockwise rotation of the pressing plate 435, the connecting ring 437 is driven to move to the bottom of the armrest 3, and then the fixing ring 438 is moved to the bottom of the armrest 3, and then the fixing ring 438 is swung, and the fixing ring 438 is sleeved on the armrest 3 and located above the bottom ring 32, and then the pressing plate 435 is pressed to make it rotate clockwise along the fixed axis 434, and then the fixing ring 438 is moved to the side close to the bottom plate 431, and when the pressing plate 435 is reset, the fixing ring 438 is fixedly sleeved on the upper end of the bottom ring 32 to fix the armrest 3 to the second fixing frame 42.

[0042] In one embodiment, a fixing plate 4311 is fixed to the middle of the lower end of the bottom plate 431 , a through hole 4351 is opened at the position of the pressing plate 435 corresponding to the fixing plate 4311 , and a fixing bolt 4312 is provided on the fixing plate 4311 for fixing the pressing plate 435 to the fixed plate 4311 .

[0043] This design, see Figure 6-8When the pressing plate 435 is pressed to reset, the through hole 4351 on the pressing plate 435 passes through the fixing plate 4311, and then the fixing bolt 4312 is fixed on the fixing plate 4311, so that the pressing plate 435 and the base plate 431 are fixed, thereby improving the stability of the fixing ring 438 and the armrest 3.

[0044] In one embodiment, the bottom plate 431 is fixedly connected to the second fixing frame 42 via fixing screws 432 .

[0045] This design, see Figure 6 The bottom plate 431 is connected to the second fixing frame 42 by fixing screws 432, which is convenient for disassembly and replacement when necessary, thereby improving the maintainability of the equipment.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying the importance of the relative description or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

Claims

1. A fixed support for a chimney spiral staircase, comprising a chimney body (1), a pre-buried screw (11) fixed to the outer surface of the chimney body (1), a spiral staircase (2) fixed to the outside of the chimney body (1) and fixedly connected to the pre-buried screw (11), and a handrail (3) fixed to the upper end of the spiral staircase (2), characterized in that: Also includes: A support unit (4), arranged at the lower end of the spiral staircase (2) and connected to the embedded screw rod (11), and used for supporting and fixing the spiral staircase (2); The support unit (4) comprises: A second fixing frame (42) is detachably fixed to the embedded screw rod (11) and fixed to the lower end of the spiral staircase (2), and is used to support the spiral staircase (2); A fixing member (43) is arranged on the second fixing frame (42) and connected to the lower end of the armrest (3), and is used to fix the armrest (3).

2. The fixed support of a chimney spiral staircase according to claim 1, characterized in that: The handrail (3) is inserted through the spiral staircase (2) and the second fixing frame (42); a limit block (31) is fixed at the upper end of the spiral staircase (2); and a bottom ring (32) is fixed at the lower end of the handrail (3).

3. The fixed support of a chimney spiral staircase according to claim 2, characterized in that: The fixing member (43) comprises a bottom plate (431) arranged at the lower end of the second fixing frame (42), a fixing ring (438) arranged on the bottom plate (431) at a side close to the handrail (3), and an adjusting device arranged on the bottom plate (431) for adjusting the installation position of the fixing ring (438); the fixing ring (438) is fixedly sleeved on the handrail (3) at the upper end of the bottom ring (32).

4. The fixed support of a chimney spiral staircase according to claim 3, characterized in that: The adjusting device comprises a connecting frame (433) fixed to the lower end of the base plate (431) close to the handrail (3), a fixed shaft (434) rotatably arranged on the connecting frame (433), a pressing plate (435) rotatably arranged on the fixed shaft (434), and a torsion spring (436) sleeved on the fixed shaft (434) and abutting against the base plate (431) and the pressing plate (435); a connecting ring (437) is fixed to one side of the fixing ring (438) close to the pressing plate (435); and the connecting ring (437) is rotatably arranged on both sides of the pressing plate (435).

5. The fixed support of a chimney spiral staircase according to claim 4, characterized in that: A fixing plate (4311) is fixed to the middle part of the lower end of the base plate (431), a through hole (4351) is provided on the pressing plate (435) at a position corresponding to the fixing plate (4311), and a fixing bolt (4312) is provided on the fixing plate (4311) for fixing the pressing plate (435) to the fixing plate (4311).

6. The fixed support of a chimney spiral staircase according to claim 5, characterized in that: The bottom plate (431) is fixedly connected to the second fixing frame (42) via fixing screws (432).

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