CN213770975U

CN213770975U - Multi-degree-of-freedom weak connection node additionally provided with elevator steel shaft

Info

Publication number: CN213770975U
Application number: CN202022947455.8U
Authority: CN
Inventors: 张宪江; 谢恩普; 李超
Original assignee: Huzhou Vocational and Technical College
Current assignee: Huzhou Vocational and Technical College
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-07-23
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses an add weak connected node of multi freedom of elevator steel well, including fixed rigid end plate, one end and the steel well fixed connection's of setting on existing building mounting panel, be fixed with two otic placodes that set up side by side on the rigid end plate, wear to establish between two otic placodes and be fixed with a main shaft, the other end cover of mounting panel is established on the main shaft to be located between two otic placodes, all press from both sides between every otic placode and the mounting panel and be equipped with compression spring, and the compression spring cover is established on the main shaft. Through adopting the above-mentioned setting, the utility model discloses not only can release vertical to and the level effectively to the poor node internal force that arouses of displacement, but also can guarantee to add the connection reliability of elevator.

Description

Multi-degree-of-freedom weak connection node additionally provided with elevator steel shaft

Technical Field

The utility model relates to a connection structure of elevator steel well, concretely relates to add weak connected node of multi freedom of elevator steel well.

Background

With the advance of the transformation of the old city of China, the addition of an elevator on the existing building of the old residence becomes a civil problem to be solved urgently, and the wide attention of the society is drawn. The self-weight difference and construction sequence of the steel shaft additionally provided with the elevator and the existing building are different, so that the settlement displacement difference between the steel shaft and the existing building is easily caused; meanwhile, the difference between the mass and the rigidity of the two is large, and a large relative horizontal displacement difference is generated under the horizontal action of wind load or earthquake and the like. Therefore, in order to reduce the possibility of damage to existing buildings, the connection between the two needs to be designed and optimized, in an effort to make the connection sufficiently "weak" while also ensuring the reliability of the connection of the elevator hoistway. This also makes it a technical challenge to connect the elevator steel shaft to existing buildings for the addition of elevators.

At present, the steel shaft additionally provided with the elevator is usually directly connected with the existing building through bolts, the connection does not belong to weak connection, interaction possibly caused by the connection is not considered, and once the displacement difference occurs, stress generated by the displacement difference in a connecting node is enough to cause node damage, so that local damage is caused to the existing building, and even greater potential safety hazard is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an add weak connected node of multi freedom of elevator steel well, it not only can release effectively because the node internal force that the above-mentioned displacement difference arouses, but also can guarantee to add the connection reliability of elevator.

In order to achieve the purpose, the utility model provides an add weak connected node of multi freedom of elevator steel well, including fixed rigid end plate, one end and the steel well fixed connection's of setting on existing building mounting panel, be fixed with two otic placodes that set up side by side on the rigid end plate, wear to establish between the two otic placodes and be fixed with a main shaft, the other pot head of mounting panel is established on the main shaft to be located between the two otic placodes, all press from both sides between every otic placode and the mounting panel and be equipped with compression spring, and compression spring overlaps and establishes on the main shaft.

The utility model has the advantages that: the node internal force caused by the settlement difference between the structures can be effectively weakened through the rotational freedom of the mounting plate on the main shaft; the degree of freedom generated by the deformation of the mounting plate in a swinging and compression mode can effectively weaken the node internal force generated by the horizontal displacement difference between the structures, and meanwhile, the steel well can be reset to the initial state to the maximum extent by the restoring force of the compression spring. Therefore, the internal force of the node caused by the vertical and horizontal displacement difference can be effectively released, and the connection reliability of the additionally-arranged elevator can be ensured through the connection.

The utility model discloses the hole that can further set up to be connected with the main shaft on the mounting panel is oval hole, and the cover is equipped with the elasticity piece that is used for filling this oval hole on the main shaft, the elasticity piece specifically can be super-elastic rubber block to make the mounting panel have bigger rotation or swing degree of freedom, and then further weaken the node internal force that the displacement difference arouses.

The utility model discloses still can further set up to compression spring and support through the packing ring and press on the mounting panel, just the coaxial suit of packing ring is on the main shaft, and the packing ring is seted up on the terminal surface of mounting panel and is communicated with each other and use the spherical recess at packing ring hole as the center with the packing ring hole, and the shaping of the homogeneous body in axial both ends of elastic block has suit in the epaxial spherical lug of cover, and the spherical lug of every end all inlays the dress in the spherical recess that corresponds the end. Through the arrangement, the compression spring is prevented from directly acting on the mounting plate, and the mounting plate is protected; in addition, the mounting plate can be quickly centered and reset to the initial position after rotating or swinging relative to the main shaft through the matching of the spherical convex block and the spherical groove.

The utility model discloses still can further set up to still inlay in the spherical convex block of every end and be equipped with the annular spring that sets up around the main shaft. Through setting up annular spring, both make spherical lug and spherical recess keep laminating more closely, ensure reliable connection, help spherical lug to receive quick recovery after the extrusion again.

The utility model discloses still can further set up to otic placode welded fastening is on the rigidity end plate, and is provided with additional strengthening between otic placode and the rigidity end plate. The end part welded with the rigid end plate on the lug plate is provided with a flange which protrudes outwards and is fixed on the rigid end plate in a circle, the reinforcing structure comprises a reinforcing plate, the reinforcing plate is sleeved on the lug plate and is welded and fixed on the rigid end plate, and a notch for embedding the flange is formed in the reinforcing plate. By the arrangement, the fixed connection between the ear plate and the rigid end plate can be reinforced to the maximum extent. The reinforcing plate is integrally formed with a plurality of reinforcing blocks for clamping and fixing the ear plates along the length direction. This provides a further supporting fixation of the ear plate.

The utility model discloses still can further set up to the rigidity end plate and form fixed connection through pre-buried crab-bolt and existing building, the mounting panel passes through connecting bolt and forms fixed connection with the steel well.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a partial exploded view of the present invention;

FIG. 3 is a sectional view of the present invention;

FIG. 4 is a structural diagram of the elastic block of the present invention;

fig. 5 is a partial exploded view of the present invention;

fig. 6 is a structural diagram of the middle reinforcing plate of the present invention.

Detailed Description

As shown in fig. 1-6, a multi-degree-of-freedom weak connection node for additionally arranging an elevator steel shaft is provided, which comprises a rigid end plate 1 and a mounting plate 2, wherein the rigid end plate 1 forms a fixed connection with an existing building through an embedded anchor bolt 3, two lug plates 4 arranged side by side are fixed on the rigid end plate 1, a spindle 5 is fixedly arranged between the two lug plates 4 in a penetrating manner, one end of the mounting plate 2 forms a fixed connection with the steel shaft through a connecting bolt 6, the other end of the mounting plate 2 is sleeved on the spindle 5 and is positioned between the two lug plates 4, a compression spring 7 is clamped between each lug plate 4 and the mounting plate 2, and the compression spring 7 is sleeved on the spindle 5.

The node internal force caused by the settlement difference between the structures can be effectively weakened through the rotational freedom of the mounting plate 2 on the main shaft 5; the degree of freedom generated by the deformation of the mounting plate 2 by swinging and compressing the compression spring 7 can effectively weaken the node internal force generated by the horizontal displacement difference between the structures, and meanwhile, the steel well can be furthest reset to the initial state by the restoring force of the compression spring 7. Therefore, the internal force of the node caused by the vertical and horizontal displacement difference can be effectively released, and the connection reliability of the additionally-arranged elevator can be ensured through the connection.

The hole that is connected with main shaft 5 on the mounting panel 2 is oval hole 21, and the cover is equipped with the elasticity piece 8 that is used for filling this oval hole 21 on main shaft 5, elasticity piece 8 specifically can be super-elastic rubber block to make mounting panel 2 have bigger rotation or swing degree of freedom, and then further weaken the node internal force that the displacement difference arouses. The compression spring 7 is pressed against the mounting plate 2 through a gasket 9, the gasket 9 is coaxially sleeved on the main shaft 5, a spherical groove 92 which is communicated with the gasket inner hole 91 and takes the gasket inner hole 91 as the center is formed in the end face, facing the mounting plate, of the gasket 9, a spherical convex block 81 sleeved on the main shaft 5 is integrally formed at two axial ends of the elastic block 8, and the spherical convex block 81 at each end is embedded in the spherical groove 92 at the corresponding end. Through the arrangement, the compression spring 7 is prevented from directly acting on the mounting plate 2, and the mounting plate 2 is protected; and moreover, the elastic block 8 can be effectively prevented from falling out, and in addition, the mounting plate 2 can be quickly centered and reset to the initial position after rotating or swinging relative to the main shaft 5 through the matching of the spherical convex block 81 and the spherical groove 92. A ring spring 82 disposed around the main shaft 5 is also embedded in the spherical projection 81 at each end. By providing the annular spring 82, both the spherical projection 81 and the spherical recess 92 are maintained in closer abutment, ensuring a reliable connection, and facilitating a quick recovery of the spherical projection 81 after being squeezed.

The ear plate 4 is welded and fixed on the rigid end plate 1, and a reinforcing structure is arranged between the ear plate 4 and the rigid end plate 1. The welded end of the lug plate 4 and the rigid end plate 1 is provided with a ring of flanges 41 which protrude outwards and are attached to the rigid end plate 1, the reinforcing structure comprises a reinforcing plate 10, the reinforcing plate 10 is sleeved on the lug plate 4 and is welded and fixed on the rigid end plate 1, and notches 101 for the flanges 41 to be embedded are formed in the reinforcing plate 10. This arrangement maximizes the secure attachment of the ear panel 4 to the rigid end panel 1. The reinforcing plate 10 is integrally formed with a plurality of reinforcing blocks 102 along the longitudinal direction thereof for holding and fixing the ear plate 4. This provides a further supporting fixation of the ear plate 4.

Claims

1. The utility model provides an add weak connected node of multi freedom of elevator steel well, includes the fixed mounting panel that sets up rigidity end plate, one end and steel well fixed connection on existing building, its characterized in that: the rigid end plate is fixed with two ear plates which are arranged side by side, a main shaft is arranged between the two ear plates in a penetrating mode, the other end of the mounting plate is sleeved on the main shaft and located between the two ear plates, a compression spring is arranged between each ear plate and the mounting plate in a clamping mode, and the compression spring is sleeved on the main shaft.

2. The multi-degree-of-freedom weak connection node with the added elevator steel hoistway according to claim 1, is characterized in that: the hole connected with the main shaft on the mounting plate is an elliptical hole, and the main shaft is sleeved with an elastic block used for filling the elliptical hole.

3. The multi-degree-of-freedom weak connection node with the added elevator steel hoistway according to claim 2 is characterized in that: the compression spring is pressed on the mounting plate through the gasket, the gasket is coaxially sleeved on the main shaft, a spherical groove which is communicated with the inner hole of the gasket and takes the inner hole of the gasket as the center is formed in the end face of the gasket, which faces the mounting plate, the two axial ends of the elastic block are integrally formed with spherical convex blocks sleeved on the main shaft, and the spherical convex blocks at each end are all embedded in the spherical grooves at the corresponding ends.

4. The multi-degree-of-freedom weak connection node with the added elevator steel hoistway according to claim 3, is characterized in that: and a ring-shaped spring arranged around the main shaft is embedded in the spherical convex block at each end.

5. The weakly connected node of multiple degrees of freedom for adding an elevator steel hoistway according to claim 1, 2, 3 or 4, characterized in that: the ear plate is welded and fixed on the rigid end plate, and a reinforcing structure is arranged between the ear plate and the rigid end plate.

6. The multi-degree-of-freedom weak connection node with the added elevator steel hoistway according to claim 5, is characterized in that: the end part welded with the rigid end plate on the lug plate is provided with a flange which protrudes outwards and is fixed on the rigid end plate in a circle, the reinforcing structure comprises a reinforcing plate, the reinforcing plate is sleeved on the lug plate and is welded and fixed on the rigid end plate, and a notch for embedding the flange is formed in the reinforcing plate.

7. The multi-degree-of-freedom weak connection node with the added elevator steel hoistway according to claim 6, is characterized in that: the reinforcing plate is integrally formed with a plurality of reinforcing blocks for clamping and fixing the ear plates along the length direction.

8. The weakly connected node of multiple degrees of freedom for adding an elevator steel hoistway according to claim 1, 2, 3 or 4, characterized in that: the rigid end plate forms fixed connection with the existing building through the embedded anchor, and the mounting plate forms fixed connection with the steel hoistway through the connecting bolt.