CN211499537U

CN211499537U - Assembled steel construction stair

Info

Publication number: CN211499537U
Application number: CN201922083266.8U
Authority: CN
Inventors: 胡思太; 谈宇坤
Original assignee: Anhui Ande Architectural Design Co ltd
Current assignee: Anhui Ande Architectural Design Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-15
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to an assembled steel construction stair, it includes left socle, footboard, right branch frame and railing, a plurality of counter bores have been seted up on left socle and the right branch frame, the railing includes a plurality of down tubes and installs the handrail in a plurality of down tube tops, install the fixing device who is used for fixed down tube in the counter bore, fixing device includes the connecting pipe of rigid coupling in the counter bore and installs in the connecting pipe and be used for fixing the fixed establishment to the down tube; the fixing mechanism comprises a plurality of first sliding grooves formed in the side wall of the connecting pipe, a plurality of abutting blocks connected to the first sliding grooves in a sliding mode in a one-to-one correspondence mode, and a driving assembly arranged on the outer side wall of the connecting pipe and used for driving the abutting blocks to move towards the direction close to the inclined rod; and a reset assembly used for driving the abutting block to move towards the direction far away from the inclined rod is installed on the outer side wall of the connecting pipe. The utility model discloses can reduce the possibility that railing and counter bore take place to separate.

Description

Assembled steel construction stair

Technical Field

The utility model belongs to the technical field of the stair technique and specifically relates to an assembled steel construction stair is related to.

Background

The stairs are used as members for vertical traffic between floors in a building and are used for traffic connection between floors and when the height difference is large. Stairways are also provided in multi-story and high-rise buildings provided with elevators, escalators as the main means of vertical transport, which high-rise buildings, despite the use of elevators as the main means of vertical transport, still have to remain stairways for escape in case of fire. The stairs are composed of continuous stair sections (also called stair runs), platforms (rest platforms), enclosing members and the like. The horizontal projection distance between the lowest step and the highest step of the stair is the length of the stair, and the total height of the steps is the height of the stair.

In the prior art, reference can be made to a Chinese utility model patent with an authorization publication number of CN206016100U, which discloses a steel structure combined stair, comprising a left bracket, a pedal, a right bracket, a railing, a nut and a connecting shaft; the right support is provided with a through hole I, a counter bore, a through hole II and a limiting edge, the through holes I are uniformly distributed in the length direction of the right support, and the limiting edge is a right-angle convex edge; the structure symmetry of right branch frame and left socle, square pipe suit are epaxial at the side, and connecting axle and footboard all clamp between left socle and right branch frame to the threaded shaft of connecting axle is connected in through-hole I, and the bottom of footboard contacts with spacing arris, and the nut passes through threaded connection and epaxial at the threaded shaft, and the both ends of railing are located two counter bores respectively. The stair is assembled by a plurality of steel structure components such as left socle, right branch frame, footboard to fasten with the help of threaded connection, the equipment is convenient with the dismantlement, is particularly suitable for the use of interim stair, simple structure, and the security is high.

The above prior art solutions have the following drawbacks: the connection between the handrail and the counter bore is not firm, so that the handrail is easily separated from the counter bore.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide an assembled steel construction stair can reduce railing and counter bore and take place the possibility of separation.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an assembled steel structure stair comprises a left support, a pedal, a right support and a railing, wherein a plurality of counter bores are formed in the left support and the right support, the railing comprises a plurality of inclined rods and handrails mounted at the tops of the inclined rods, fixing devices for fixing the inclined rods are mounted in the counter bores, and each fixing device comprises a connecting pipe fixedly connected in the counter bore and a fixing mechanism mounted in the connecting pipe and used for fixing the inclined rods; the fixing mechanism comprises a plurality of first sliding grooves formed in the side wall of the connecting pipe, a plurality of abutting blocks connected to the first sliding grooves in a sliding mode in a one-to-one correspondence mode, and a driving assembly arranged on the outer side wall of the connecting pipe and used for driving the abutting blocks to move towards the direction close to the inclined rod; and a reset assembly used for driving the abutting block to move towards the direction far away from the inclined rod is installed on the outer side wall of the connecting pipe.

By adopting the technical scheme, the inclined rod is inserted into the inner cavity of the connecting pipe, and then the drive assembly drives the abutting block to move towards the direction close to the inclined rod, so that the inclined rod can be fixed; through setting up fixing device, can reduce the possibility that railing and counter bore take place to separate.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a nut in threaded connection with the outer side wall of the connecting pipe and a sleeve which is fixedly connected to the top of the nut and sleeved outside the connecting pipe; the top of the sleeve is provided with a first inclined plane in an inverted frustum shape, one end, close to the sleeve, of each abutting block is provided with a second inclined plane, and the first inclined plane is matched with the second inclined plane.

By adopting the technical scheme, the sleeve pipe moves upwards in an inclined way by rotating the nut, and the sleeve pipe drives the abutting block to move towards the direction close to the inclined rod under the action of the first inclined plane and the second inclined plane; through setting up drive assembly, be convenient for drive butt piece removes to be convenient for fix the down tube.

The present invention may be further configured in a preferred embodiment as: the reset assembly comprises a connecting block fixedly connected to the top of the abutting block and a first spring fixedly connected to one end, close to the connecting pipe, of the connecting block; one end of the first spring, which is far away from the connecting block, is fixedly connected to the outer side wall of the connecting pipe.

By adopting the technical scheme, the abutting block moves towards the direction close to the inclined rod to drive the connecting block to move, the connecting block moves to compress the first spring, and the first spring is in a compressed state at the moment; when the sleeve moves downwards, the connecting block drives the abutting block to reset under the action of the first spring; through setting up reset assembly, be convenient for drive butt piece resets.

The present invention may be further configured in a preferred embodiment as: a first slot for inserting the abutting block is formed in the inclined rod.

Through adopting above-mentioned technical scheme, through setting up first slot, can make butt joint piece and down tube be connected more stably.

The present invention may be further configured in a preferred embodiment as: the handrail is detachably connected with the inclined rod, and a connecting mechanism for fixing the handrail is installed on the handrail.

By adopting the technical scheme, the handrail and the inclined rod are conveniently and fixedly connected by arranging the connecting mechanism.

The present invention may be further configured in a preferred embodiment as: the connecting mechanism comprises a fixed block fixedly connected to the bottom of the handrail and a second slot arranged at the bottom of the fixed block and used for inserting the inclined rod; and the fixed block is provided with an elastic component for fixing the inclined rod.

Through adopting above-mentioned technical scheme, make the down tube peg graft in the second slot through removing the handrail, then fix the down tube through elastic component to be convenient for install the handrail on the down tube.

The present invention may be further configured in a preferred embodiment as: the elastic component comprises a through hole arranged on the side wall of the second slot, a vertical block fixedly connected in the through hole and a bolt connected to the vertical block in a sliding manner along the radial direction of the inclined rod; the inclined rod is provided with an insertion hole, one end of the plug pin penetrates through the fixed block and is inserted into the insertion hole, and the other end of the plug pin is fixedly connected with a handle; the plug pins are sleeved with and fixed with limit blocks, the plug pins are sleeved with second springs, and two ends of each second spring are fixedly connected to the corresponding fixed block and the corresponding limit block respectively.

By adopting the technical scheme, when the handrail needs to be installed, the bolt is pulled by the pulling handle, then the inclined rod can be inserted into the second slot, and the bolt moves to drive the limiting block to move, the limiting block moves to compress the second spring, and the second spring is in a compressed state; after the diagonal rod is inserted into the second slot, the handle is loosened, and the limit block drives the plug pin to be inserted into the jack under the action of the second spring, so that the handrail can be fixed; through setting up elastic component, be convenient for fix the down tube.

The present invention may be further configured in a preferred embodiment as: the down tube comprises a bottom rod and a top rod, a second sliding groove used for allowing the top rod to slide along the axial direction of the down tube is formed in the top of the bottom rod, and a fastening bolt used for fixing the top rod is connected to the outer side wall of the second sliding groove in a threaded mode.

Through adopting above-mentioned technical scheme, unscrew fastening bolt, then remove the ejector pin, can adjust the height of down tube like this to be convenient for protect the user.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the inclined rod is inserted into the inner cavity of the connecting pipe, and then the drive assembly drives the abutting block to move towards the direction close to the inclined rod, so that the inclined rod can be fixed; by arranging the fixing device, the possibility of separating the handrail from the counter bore can be reduced;

2. the sleeve pipe moves upwards in an inclined way by rotating the nut, and the sleeve pipe drives the abutting block to move towards the direction close to the inclined rod under the action of the first inclined plane and the second inclined plane; the driving assembly is arranged, so that the abutting block can be conveniently driven to move, and the inclined rod can be conveniently fixed;

3. when the handrail needs to be installed, the bolt is pulled through the pulling handle, then the inclined rod can be inserted into the second slot, and the bolt moves to drive the limiting block to move, the limiting block moves to compress the second spring, and the second spring is in a compressed state; after the diagonal rod is inserted into the second slot, the handle is loosened, and the limit block drives the plug pin to be inserted into the jack under the action of the second spring, so that the handrail can be fixed; through setting up elastic component, be convenient for fix the down tube.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a partial cross-sectional view of a highlighted fixture of an embodiment;

FIG. 3 is a partial cross-sectional view of a highlighted elastomeric component of an embodiment;

FIG. 4 is a schematic view of the embodiment showing the second chute.

In the figure, 1, a railing; 11. a diagonal bar; 111. a first slot; 112. a jack; 113. a bottom bar; 114. a top rod; 115. a second chute; 116. fastening a bolt; 12. a handrail; 2. a counter bore; 3. a fixing device; 31. a connecting pipe; 4. a fixing mechanism; 41. a first chute; 42. a butting block; 43. a drive assembly; 431. a nut; 432. a sleeve; 433. a first inclined plane; 434. a second inclined plane; 44. a reset assembly; 441. connecting blocks; 442. a first spring; 5. a connecting mechanism; 51. a fixed block; 511. a second slot; 512. a through hole; 52. an elastic component; 521. a vertical block; 522. a bolt; 523. a handle; 524. a limiting block; 525. a second spring.

Detailed Description

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

As shown in fig. 1, for the utility model discloses an assembled steel structure stair, including left socle, footboard, right branch frame and railing 1, seted up a plurality of counter bores 2 on left socle and the right branch frame, railing 1 includes a plurality of down tube 11 and installs in the handrail 12 at a plurality of down tube 11 tops, installs the fixing device 3 that is used for fixed down tube 11 in the counter bore 2.

As shown in fig. 1 and 2, the fixing device 3 includes a connecting tube 31 adhered or welded in the counterbore 2 and a fixing mechanism 4 installed in the connecting tube 31 for fixing the inclined rod 11; the fixing mechanism 4 includes a plurality of first sliding grooves 41 formed in the side wall of the connecting pipe 31, a plurality of abutting blocks 42 slidably connected to the first sliding grooves 41 in a one-to-one correspondence manner, and a driving assembly 43 mounted on the outer side wall of the connecting pipe 31 and used for driving the plurality of abutting blocks 42 to move in a direction close to the inclined rod 11; the inclined rod 11 is provided with a first slot 111 for the butt joint block 42 to be inserted; the outer side wall of the connecting tube 31 is mounted with a reset assembly 44 for driving the abutment block 42 to move away from the tilting rod 11. The inclined rod 11 is inserted into the inner cavity of the connecting pipe 31, and then the driving assembly 43 drives the abutting block 42 to move towards the direction close to the inclined rod 11, so that the inclined rod 11 can be fixed; through setting up fixing device 3, can reduce the possibility that railing 1 and counter bore 2 take place to separate.

The driving assembly 43 includes a nut 431 screwed to the outer sidewall of the connection pipe 31 and a sleeve 432 fixed to the top of the nut 431 and sleeved outside the connection pipe 31; the top of the sleeve 432 is provided with a first inclined surface 433 with an inverted truncated cone shape, one end of each abutting block 42 close to the sleeve 432 is provided with a second inclined surface 434, and the first inclined surface 433 is matched with the second inclined surface 434. The sleeve 432 is moved obliquely upward by rotating the nut 431, and at this time, the sleeve 432 drives the abutting block 42 to move toward the inclined rod 11 under the action of the first inclined surface 433 and the second inclined surface 434; by providing the driving assembly 43, it is convenient to drive the abutting block 42 to move, thereby facilitating the fixing of the diagonal rod 11.

The reset assembly 44 includes a connecting block 441 fixed on the top of the abutting block 42 and a first spring 442 fixed on one end of the connecting block 441 close to the connecting pipe 31; the end of the first spring 442 away from the connecting block 441 is fixed to the outer sidewall of the connecting pipe 31. The abutting block 42 moves towards the direction close to the inclined rod 11 to drive the connecting block 441 to move, the connecting block 441 moves to compress the first spring 442, and at the moment, the first spring 442 is in a compressed state; when the sleeve 432 moves downwards, the connecting block 441 drives the abutting block 42 to reset under the action of the first spring 442; by providing reset assembly 44, it is convenient to drive abutment block 42 to reset.

As shown in fig. 1 and 3, the armrest 12 is detachably connected to the inclined rod 11, and the armrest 12 is provided with a connecting mechanism 5 for fixing the armrest 12; the connecting mechanism 5 comprises a fixed block 51 fixedly connected to the bottom of the handrail 12 and a second slot 511 arranged at the bottom of the fixed block 51 and used for the insertion of the inclined rod 11; the fixing block 51 is provided with an elastic assembly 52 for fixing the inclined rod 11. The diagonal member 11 is inserted into the second slot 511 by moving the armrest 12, and then the diagonal member 11 is fixed by the elastic member 52, thereby facilitating the installation of the armrest 12 on the diagonal member 11.

The elastic component 52 comprises a through hole 512 formed in the sidewall of the second slot 511, a vertical block 521 fixedly connected in the through hole 512, and a plug 522 slidably connected to the vertical block 521 along the radial direction of the slant rod 11; the inclined rod 11 is provided with an insertion hole 112, one end of the bolt 522 penetrates through the fixed block 51 to be inserted into the insertion hole 112, and the other end is fixedly connected with a handle 523; the bolt 522 is sleeved with a limiting block 524, the bolt 522 is sleeved with a second spring 525, and two ends of the second spring 525 are respectively and fixedly connected to the fixing block 51 and the limiting block 524. When the armrest 12 needs to be installed, the bolt 522 is pulled by the pulling handle 523, and then the diagonal rod 11 can be inserted into the second slot 511, and further, the bolt 522 moves to drive the limiting block 524 to move, the limiting block 524 moves to compress the second spring 525, and at this time, the second spring 525 is in a compressed state; after the diagonal rod 11 is inserted into the second slot 511, the handle 523 is released, and the limit block 524 drives the pin 522 to be inserted into the insertion hole 112 under the action of the second spring 525, so that the armrest 12 can be fixed; the fixing of the diagonal member 11 is facilitated by the provision of the elastic member 52.

As shown in fig. 1 and 4, the inclined rod 11 includes a bottom rod 113 and a top rod 114, a second sliding groove 115 for allowing the top rod 114 to slide along the axial direction of the inclined rod 11 is opened at the top of the bottom rod 113, and a fastening bolt 116 for fixing the top rod 114 is connected to the outer side wall of the second sliding groove 115 in a threaded manner. Loosening the fastening bolt 116 and then moving the ejector rod 114 enables the height of the down tube 11 to be adjusted, thereby facilitating protection of the user.

The implementation principle of the embodiment is as follows:

the inclined rod 11 is inserted into the inner cavity of the connecting tube 31, and then the sleeve 432 is moved upward by rotating the nut 431, at this time, the sleeve 432 drives the abutting block 42 to move toward the inclined rod 11 under the action of the first inclined surface 433 and the second inclined surface 434, so that the abutting block 42 can be inserted into the first slot 111, and the inclined rod 11 can be fixed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an assembled steel construction stair, includes left socle, footboard, right branch frame and railing (1), a plurality of counter bores (2) have been seted up on left socle and the right branch frame, railing (1) include a plurality of down tube (11) and install handrail (12) at a plurality of down tube (11) tops, its characterized in that: a fixing device (3) for fixing the inclined rod (11) is arranged in the counter bore (2), and the fixing device (3) comprises a connecting pipe (31) fixedly connected in the counter bore (2) and a fixing mechanism (4) arranged in the connecting pipe (31) and used for fixing the inclined rod (11); the fixing mechanism (4) comprises a plurality of first sliding grooves (41) formed in the side wall of the connecting pipe (31), a plurality of abutting blocks (42) connected to the first sliding grooves (41) in a sliding mode in a one-to-one correspondence mode, and a driving assembly (43) arranged on the outer side wall of the connecting pipe (31) and used for driving the plurality of abutting blocks (42) to move towards the direction close to the inclined rod (11); and a reset assembly (44) for driving the abutting block (42) to move towards the direction away from the inclined rod (11) is installed on the outer side wall of the connecting pipe (31).

2. The assembled steel structure stair of claim 1, wherein: the driving assembly (43) comprises a nut (431) in threaded connection with the outer side wall of the connecting pipe (31) and a sleeve (432) fixedly connected to the top of the nut (431) and sleeved outside the connecting pipe (31); the top of sleeve pipe (432) is provided with first inclined plane (433) of inverted circular truncated cone shape, every one end that butt block (42) is close to sleeve pipe (432) is provided with second inclined plane (434), first inclined plane (433) and second inclined plane (434) phase-match.

3. The assembled steel structure stair of claim 1, wherein: the resetting component (44) comprises a connecting block (441) fixedly connected to the top of the abutting block (42) and a first spring (442) fixedly connected to one end, close to the connecting pipe (31), of the connecting block (441); one end of the first spring (442), which is far away from the connecting block (441), is fixedly connected to the outer side wall of the connecting pipe (31).

4. The assembled steel structure stair of claim 1, wherein: the inclined rod (11) is provided with a first slot (111) for the connection of the abutting block (42).

5. The assembled steel structure stair of claim 1, wherein: the handrail (12) is detachably connected with the inclined rod (11), and the connecting mechanism (5) used for fixing the handrail (12) is installed on the handrail (12).

6. The assembled steel structure stair of claim 5, wherein: the connecting mechanism (5) comprises a fixed block (51) fixedly connected to the bottom of the handrail (12) and a second slot (511) arranged at the bottom of the fixed block (51) and used for inserting the inclined rod (11); and an elastic component (52) for fixing the inclined rod (11) is arranged on the fixing block (51).

7. The assembled steel structure stair of claim 6, wherein: the elastic component (52) comprises a through hole (512) arranged on the side wall of the second slot (511), a vertical block (521) fixedly connected in the through hole (512) and a bolt (522) connected to the vertical block (521) in a sliding manner along the radial direction of the diagonal rod (11); the inclined rod (11) is provided with an insertion hole (112), one end of the plug pin (522) penetrates through the fixed block (51) and is inserted into the insertion hole (112), and the other end of the plug pin is fixedly connected with a handle (523); the fixed stopper (524) of establishing on bolt (522), second spring (525) has been cup jointed on bolt (522), the both ends rigid coupling respectively in fixed block (51) and stopper (524) of second spring (525).

8. The assembled steel structure stair of claim 1, wherein: the utility model discloses a down tube of a motor vehicle, including down tube (11), down tube (11) include sill bar (113) and ejector pin (114), second spout (115) that are used for supplying ejector pin (114) to slide along the axial of down tube (11) are seted up to the top of sill bar (113), the lateral wall threaded connection of second spout (115) has and is used for carrying out fastening bolt (116) fixed to ejector pin (114).