CN213085335U

CN213085335U - Elevator hoisting point with overload prevention and anti-loosening chain

Info

Publication number: CN213085335U
Application number: CN202021580659.6U
Authority: CN
Inventors: 陈世明; 谢庆均; 史焕然
Original assignee: Jiangsu Runbang Intelligent Garage Co ltd
Current assignee: Jiangsu Runbang Intelligent Garage Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-30
Anticipated expiration: 2030-08-03

Abstract

The utility model provides a have lift hoisting point of preventing overload and locking chain simultaneously belongs to lift technical field, include: the lifting point is used for connecting the chain and the elevator platform, and the pin shaft type sensor is transversely arranged in the lifting point and bears shearing force in the process that the chain drives the elevator platform to move up and down through the lifting point. The utility model provides a current lift can not monitor, prevent its problem of continuing the operation under overload or pine chain form attitude.

Description

Elevator hoisting point with overload prevention and anti-loosening chain

The technical field is as follows:

the utility model belongs to the technical field of the lift, concretely relates to lift hoisting point with prevent overloading and locking chain simultaneously.

Background art:

the double-column lifter is an important component of a plane moving type stereo garage and is mainly used for completing the vertical transportation of automobiles. Specifically, a driving mechanism at the top of the lifting device drives the lifting platform to move up and down through a chain, the automobile is conveyed to a specified floor, and then the lifting device is matched with the transverse moving trolley and the carrier to finish the whole work of storing and taking the automobile.

However, the elevator may encounter the problem of overload resistance caused by the blockage or other obstruction of the guide rail during the lifting process or the phenomenon of chain looseness during the lifting process, and the continuous operation of the elevator in any one of the two states causes safety accidents and causes harm to the safe production.

Therefore, there is a need for improvement on the existing elevator, which has the feature of monitoring overload and chain loosening simultaneously, so as to prevent safety accidents caused by continuous operation in overload or chain loosening state.

The utility model has the following contents:

the embodiment of the utility model provides a have simultaneously and prevent lift hoisting point of overload and locking chain has solved current lift and can not monitor, prevent its problem of continuing the operation under overload or pine chain form attitude.

The embodiment of the utility model provides an elevator hoisting point that has simultaneously and prevents overloading and locking chain, include:

a lifting point for connecting the chain and the lift platform;

and the pin shaft type sensor is transversely arranged in the lifting point and bears shearing force in the process that the chain drives the lifting platform to move up and down through the lifting point.

In some embodiments, the suspension point comprises:

an upper lifting point connected with the chain;

a lower lifting point connected with the lift platform and connected with the upper lifting point through the pin shaft sensor.

In some embodiments, the lower portion of the upper hanging point has a lower abutting groove formed by a bottom surface recessed towards a top surface, and a first mounting hole transversely penetrating, the first mounting hole is communicated with the lower abutting groove, the upper portion of the lower hanging point has a second mounting hole transversely penetrating, the upper portion of the lower hanging point is engaged in the lower abutting groove of the upper hanging point, and the first mounting hole of the upper hanging point and the second mounting hole of the lower hanging point are aligned with each other and are used for matching and mounting the pin shaft type sensor.

In some embodiments, the elevator suspension point with both overload and anti-loose chain further comprises a clamping plate, wherein the clamping plate and the pin shaft type sensor are mutually clamped and fixed and are in bolted connection with the lower part of the upper suspension point.

In some embodiments, the pin shaft sensor has a slot on an outer sidewall, and a plate edge of the clamping plate is cooperatively clamped in the slot.

In some embodiments, the upper portion of the upper hanging point has an upper butt-joint groove formed by a top surface being recessed toward a bottom surface, and a pin hole extending transversely therethrough, the pin hole being in communication with the upper butt-joint groove, the outer link plate of the chain being engaged in the upper butt-joint groove of the upper hanging point, the chain having a pin shaft extending transversely therethrough.

In some embodiments, a lower portion of the lower suspension point is bolted to the elevator platform.

In some embodiments, the lower portion of the lower lifting point is cylindrical and has threads on a sidewall, the elevator platform has a threaded hole that mates with the threads of the lower portion of the lower lifting point, the threads of the lower portion of the lower lifting point are threaded into the threaded hole of the elevator platform, and the threads of the lower portion of the lower lifting point are coupled to upper and lower bolts that secure the lower portion of the lower lifting point to the elevator platform.

In some embodiments, a lower portion of the lower hanging point is provided with a stopper for preventing the lower bolt from falling off.

The embodiment of the utility model provides an in the pin shaft type sensor transverse arrangement on the hoisting point for detect its in-process shearing force that reciprocates through the hoisting point at the chain and drive the lift platform, the chain and the change of lift platform inter-motion and arousing the load, the change of load arouses the change of shearing force, the change of shearing force arouses the deformation of different degree, detects this difference through the measuring device in the pin shaft type sensor and warp, and output and the direct signal of telecommunication of load. When the lifting load is the design load, outputting a corresponding electric signal, and if the load value represented by the output electric signal exceeds the design load value, namely the elevator is in an overload state; when the chain is loosened, the lifting point is not stressed at the moment, the pin shaft type sensor does not output an electric signal or the load value represented by the output electric signal is very small, so that whether the chain is in a chain loosening state in the elevator or not is judged.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Description of the drawings:

the accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the connection of the lower suspension point to the elevator platform;

FIG. 4 is a schematic structural view of an upper suspension point;

FIG. 5 is a schematic structural view of a pin-type sensor;

FIG. 6 is a schematic structural diagram of a lower suspension point;

reference numerals: 10. hoisting points; 101. lifting points; 1011. a lower butt-joint groove; 1012. a first mounting hole; 1013. an upper docking slot; 1014. a pin hole; 102. a lower hoisting point; 1021. a second mounting hole; 20. a pin-axis sensor; 201. a card slot; 30. clamping a plate; 40. screwing a bolt; 50. a lower bolt; 60. a blocking member; 70. a chain; 701. a pin shaft; 80. an elevator platform; 801. a threaded bore.

The specific implementation mode is as follows:

in order to make the technical solution of the present invention's purpose, technical solution and advantages clearer, the following description will be combined with the drawings of the specific embodiments of the present invention, to carry out clear and complete description on the technical solution of the embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an elevator suspension point with overload protection and anti-loose chain, including: a lifting point 10 and a sensor 20 in the form of a pin 701.

The lifting point 10 is used for connecting the chain 70 and the elevator platform 80, and specifically, the lifting point 10 connects the chain 70 and the elevator platform 80 in a vertical direction when the elevator is in operation.

The pin 701 sensor 20 is mounted transversely in the lifting point 10 and is subject to shear forces during the up and down movement of the chain 70 through the lifting point 10 to drive the elevator platform 80.

The pin 701 type sensor 20 is cylindrical, the pin 701 type sensor 20 comprises a pressure bearing part positioned in the middle, two supporting parts positioned on two sides and two force measuring parts respectively positioned between the pressure bearing part and the supporting parts, the double-shear type resistance strain gauge is adhered to the two force measuring parts, and different electric signals are output through detecting the deformation of the detection shaft.

The pin 701 type sensor 20 is transversely arranged on the lifting point 10 and used for detecting shearing force applied to the chain 70 in the process that the chain drives the lifting platform 80 to move up and down through the lifting point 10, the chain 70 and the lifting platform 80 move to cause load change, the load change causes the shearing force change, the shearing force change causes deformation in different degrees, the different deformation is detected through a measuring device in the pin 701 type sensor 20, and an electric signal in direct proportion to the load is output. When the lifting load is the design load, outputting a corresponding electric signal, and if the load value represented by the output electric signal exceeds the design load value, namely the elevator is in an overload state; when the chain 70 is loosened, the lifting point 10 is not stressed at the moment, and then the pin 701 type sensor 20 does not output an electric signal or the load value represented by the output electric signal is very small, so that whether the chain 70 is in the chain loosening state in the elevator is judged.

As shown in fig. 2, in one embodiment, the suspension point 10 includes: an upper suspension point 101 and a lower suspension point 102.

An upper hoist point 101 is connected to chain 70 and a lower hoist point 102 is connected to elevator platform 80 and to upper hoist point 101 by way of pin 701 sensor 20. In the technical scheme, the lifting point 10 is divided into an upper lifting point 101 and a lower lifting point 102, and the lower lifting point 102 is connected with the upper lifting point 101 through a pin 701 type sensor 20, so that the tension of the lifting point 10 on the elevator platform 80 is monitored through the pin 701 type sensor 20.

As shown in fig. 4, in one embodiment, the lower portion of the upper hanging point 101 has a lower abutting groove 1011 formed by a bottom surface recessed toward a top surface, and a first mounting hole 1012 passing through in a transverse direction, and the first mounting hole 1012 is communicated with the lower abutting groove 1011.

As shown in fig. 6, the upper portion of the lower suspension point 102 has a second mounting hole 1021 running through it, the upper portion of the lower suspension point 102 is engaged in the lower abutment slot 1011 of the upper suspension point 101, and the first mounting hole 1012 of the upper suspension point 101 and the second mounting hole 1021 of the lower suspension point 102 are aligned with each other and are used to fit the sensor 20 of the pin 701 type. The utility model provides a connection structure of upper lifting point 101, lower lifting point 102 and round pin axle 701 formula sensor 20 three, this connection structure is simple and practical, and the dismouting is convenient.

As shown in fig. 2, in an embodiment, the elevator suspension point with both overload prevention and anti-loose chain further includes a clamping plate 30, the clamping plate 30 is clamped and fixed with the sensor 20 of pin 701 type and is bolted to the lower portion of the upper suspension point 101, and the clamping plate 30 is used for preventing the sensor 20 of pin 701 type from being displaced in the transverse direction, i.e. from shifting left and right. The connection strength between the upper hanging point 101 and the lower hanging point 102 and the stability of the connection structure are affected, and the connection manner between the card board 30 and the lower portion of the upper hanging point 101 is also simple.

As shown in fig. 5, the pin 701 sensor 20 preferably has a slot 201 on an outer side wall thereof, and a board edge of the card board 30 is fittingly engaged in the slot 201. The matching of the board edge of the card board 30 and the card slot 201 can adopt a transition matching mode.

As shown in fig. 2 and 4, in one embodiment, the upper portion of the upper lifting point 101 has an upper docking slot 1013 formed by a top surface recessed toward a bottom surface and a pin hole 1014 extending laterally therethrough, the pin hole 1014 communicates with the upper docking slot 1013, the outer link plate of the chain 70 is engaged in the upper docking slot 1013 of the upper lifting point 101, and the chain 70 has a pin 701 extending laterally through the pin hole 1014, thereby enabling easy connection of the upper portion of the upper lifting point 101 to the chain 70.

As shown in fig. 2, in an embodiment, the lower portion of the lower suspension point 102 is bolted to the elevator platform 80, so that the lower portion of the lower suspension point 102 is simply connected to the elevator platform 80, and the lower portion is easily disassembled.

As shown in fig. 2 and 3, preferably, the lower portion of the lower suspension point 102 is cylindrical and has threads on a sidewall, the elevator platform 80 has a threaded hole 801 that mates with the threads of the lower portion of the lower suspension point 102, the lower portion of the lower suspension point 102 is threaded into the threaded hole 801 of the elevator platform 80, and the upper portion of the lower suspension point 102 is threadedly coupled with the upper and

lower bolts

40 and 50 for securing the lower portion of the lower suspension point 102 to the elevator platform 80. The up-down position of the lower suspension point 102 can be adjusted to some extent by adjusting the upper and

lower bolts

40 and 50.

As shown in fig. 3, in an embodiment, the lower part of the lower hanging point 102 is provided with a stopper 60 for preventing the lower bolt 50 from falling off, and specifically, the lower part of the lower hanging point 102 is provided with a hole, and the stopper 60 is a cotter pin.

The embodiment of the utility model provides a solve current lift can not monitor, prevent its problem of continuing the operation under overload or pine chain form state.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme consisting of the equivalent replacement of the technical features. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.

Claims

1. An elevator suspension point having both overload and check chains, comprising:

a lifting point (10) for connecting the chain (70) and the elevator platform (80);

a pin-axis sensor (20) mounted transversely in the lifting point (10) and subject to shear forces during up and down movement of the lift platform (80) by the chain (70) through the lifting point (10).

2. The elevator suspension point with simultaneous overload protection and anti-loose chain according to claim 1, characterized in that the suspension point (10) comprises:

an upper lifting point (101) connected to the chain (70);

a lower lifting point (102) connected with the lift platform (80) and connected with the upper lifting point (101) through the pin-shaft sensor (20).

3. The elevator suspension point with both overload protection and check chain as claimed in claim 2, wherein: the lower part of the upper lifting point (101) is provided with a lower butt joint groove (1011) formed by a bottom surface in a concave mode towards the top surface direction and a first transversely-penetrating mounting hole (1012), the first mounting hole (1012) is communicated with the lower butt joint groove (1011), the upper part of the lower lifting point (102) is provided with a second transversely-penetrating mounting hole (1021), the upper part of the lower lifting point (102) is jointed in the lower butt joint groove (1011) of the upper lifting point (101), and the first mounting hole (1012) of the upper lifting point (101) and the second mounting hole (1021) of the lower lifting point (102) are aligned with each other and are used for installing the pin shaft type sensor (20) in a matching mode.

4. The elevator suspension point with both overload protection and check chain as claimed in claim 3, wherein: the elevator hoisting point with the overload prevention and anti-loosening chain simultaneously further comprises a clamping plate (30), wherein the clamping plate (30) and the pin shaft type sensor (20) are clamped and fixed with each other and are connected with the lower part of the upper hoisting point (101) through bolts.

5. The elevator suspension point with both overload protection and check chain as claimed in claim 4, wherein: the outer side wall of the pin shaft type sensor (20) is provided with a clamping groove (201), and the plate edge of the clamping plate (30) is clamped in the clamping groove (201) in a matching manner.

6. The elevator suspension point with both overload protection and check chain as claimed in claim 5, wherein: the upper part of the upper lifting point (101) is provided with an upper butt groove (1013) formed by the top surface sinking towards the bottom surface and a pin hole (1014) which transversely penetrates through the upper butt groove (1013), the pin hole (1014) is communicated with the upper butt groove (1013), the outer chain plate of the chain (70) is jointed in the upper butt groove (1013) of the upper lifting point (101), and the chain (70) is provided with a pin shaft (701) which transversely penetrates through the pin hole (1014).

7. The elevator suspension point with both overload protection and check chain as claimed in claim 6, wherein: the lower part of the lower lifting point (102) is connected with the lifting platform (80) through bolts.

8. The elevator suspension point with both overload protection and check chain as claimed in claim 7, wherein: the lower part of the lower lifting point (102) is cylindrical, threads are arranged on the side wall of the lower lifting point, a threaded hole (801) matched with the threads on the lower part of the lower lifting point (102) is formed in the elevator platform (80), the threads on the lower part of the lower lifting point (102) are screwed into the threaded hole (801) of the elevator platform (80), and an upper bolt (40) and a lower bolt (50) used for fixing the lower part of the lower lifting point (102) on the elevator platform (80) are connected with the threads on the lower part of the lower lifting point (102).

9. The elevator suspension point with both overload protection and check chain as claimed in claim 8, wherein: the lower part of the lower lifting point (102) is provided with a blocking piece (60) for preventing the lower bolt (50) from falling off.