Elevator handrail convenient to disassemble and assemble

Abstract

The elevator handrail comprises a handrail body, a handrail outer seat and a handrail inner seat, the handrail inner seat abuts against the inner side wall of a car enclosure bulkhead and is connected with the car enclosure bulkhead through hexagon socket screws, and the handrail body is integrally formed by aluminum profiles. A plurality of parallel long grooves are formed in one side wall of the handrail body, the handrail outer base abuts against the side wall, provided with the long grooves, of the handrail body, a connecting groove is formed in the handrail outer base, self-tapping screws with the same number as the long grooves are arranged in the groove wall of the connecting groove in a penetrating mode, and the self-tapping screws are screwed into the corresponding long grooves and are in threaded connection with the long grooves. The handrail outer seat is arranged on the handrail inner seat in a sleeving mode and abuts against the lift car enclosure wall, an inner hexagonal set screw is connected into the handrail outer seat in a threaded mode, and the inner hexagonal set screw abuts against the handrail inner seat. The elevator handrail dismounting device has the advantage that one worker in the elevator car can complete dismounting of the elevator handrail.

Description

Technical Field

[0001] This utility model relates to the field of elevators, and more particularly to elevator handrails that are easy to disassemble and assemble. Background Technology

[0002] Most elevator handrails on the market are currently fixed directly to the car wall with bolts. The car wall where the handrail is installed has two connecting holes, and connecting feet are provided at both ends of the handrail. Threaded holes are provided in the connecting feet. The two connecting feet on the handrail abut against the two connecting holes, and bolts are inserted into the connecting holes, threadedly connecting with the threaded holes in the connecting feet. This is how the elevator handrail is installed on the car wall. Figure 1 As shown, this installation structure requires the bolts to be tightened on the outside of the car, while the car needs to run in the shaft. When replacing a damaged elevator handrail, one worker needs to enter the shaft to loosen the bolts, while another worker inside the car removes the handrail from the car wall. Then, the worker inside the car places the new handrail on the car wall, aligning it with the bolts, and the worker in the shaft tightens the bolts. This is how the replacement of the elevator handrail is completed. Not only is the operation difficult, but it also requires two people to work together to complete the replacement. Utility Model Content

[0003] The purpose of this invention is to provide an elevator handrail that is easy to disassemble and assemble, requiring only one person inside the elevator car to complete the replacement work.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an elevator handrail that is easy to assemble and disassemble, comprising: a handrail body, an outer handrail seat, and an inner handrail seat. The inner handrail seat abuts against the inner side wall of the car enclosure and is connected to the car enclosure via hexagonal socket head cap screws. The handrail body is integrally formed from aluminum profiles. Several parallel elongated grooves are provided on one side wall of the handrail body. The outer handrail seat abuts against the side wall of the handrail body with the elongated grooves. A connecting groove is provided on the outer handrail seat. Self-tapping screws of the same number as the elongated grooves are inserted into the groove wall of the connecting groove. The self-tapping screws are screwed into the corresponding elongated grooves and threadedly connected to the elongated grooves. The outer handrail seat is fitted onto the inner handrail seat through the connecting groove and abuts against the car enclosure. A hexagonal socket head cap screw is threadedly connected to the outer handrail seat and abuts against the inner handrail seat.

[0005] Furthermore, in the aforementioned elevator handrail that is easy to disassemble and assemble, the connection structure between the hexagon socket bolt and the car wall is as follows: a first connection hole is provided on the car wall, a reinforcing plate is welded on the outer side wall of the car wall, a second connection hole is provided on the reinforcing plate that is aligned with the first connection hole, a nut is inserted in the second connection hole of the reinforcing plate, the nut is welded to the reinforcing plate, and the hexagon socket bolt passes through the first connection hole and the second connection hole and is threadedly connected to the nut.

[0006] Furthermore, in the aforementioned elevator handrail that is easy to disassemble and assemble, two annular grooves are provided at intervals on the circumferential wall of the inner seat of the handrail, and two internal hexagon set screws are threadedly connected in the outer seat of the handrail, with the two internal hexagon set screws respectively abutting against the two annular grooves of the inner seat of the handrail.

[0007] Furthermore, in the aforementioned elevator handrail that is easy to assemble and disassemble, the main body of the handrail has a cross-section of an elongated ring shape, and the straight sidewall of the main body of the handrail abuts against the outer seat of the handrail. On the straight sidewall that contacts the outer seat of the handrail, two spaced thickened layers are integrally formed inward. On the straight sidewall with the thickened layers, two long grooves are spaced apart, and the two long grooves extend into the two thickened layers respectively.

[0008] Furthermore, in the aforementioned elevator handrail that is easy to assemble and disassemble, two long slots are the same length as the main body of the handrail.

[0009] Furthermore, in the aforementioned elevator handrail that is easy to assemble and disassemble, end cap mounting seats are integrally formed on the inner side walls of the arc-shaped walls at both ends of the handrail body.

[0010] Furthermore, in the aforementioned elevator handrail that is easy to assemble and disassemble, there is a 0.8 to 1.2 mm single-sided gap between the connecting groove and the inner seat of the handrail.

[0011] The advantages of this invention are as follows: The worker can fix the inner handrail seat to the car wall inside the elevator car, then fix the outer handrail seat to the handrail body, and finally fit and fix the outer handrail seat onto the inner handrail seat to complete the elevator handrail installation. The entire process can be completed by only one worker inside the car, making it convenient and quick. The outer handrail seat can be adjusted to any position along the long groove on the handrail body. Therefore, by adjusting the distance between the two outer handrail seats on the handrail body according to the distance between the two inner handrail seats on different sizes of car walls, the handrail body can be installed on car walls of different sizes, improving the adaptability of the elevator handrail and reducing the production cost for enterprises. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure between the traditional elevator handrail and the car wall.

[0013] Figure 2This is a structural schematic diagram of the elevator handrail that is easy to assemble and disassemble according to this utility model. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments.

[0015] like Figure 2 As shown, the elevator handrail of this utility model, which is easy to assemble and disassemble, includes: a handrail body 1, a handrail outer seat 2, and a handrail inner seat 3. A first connecting hole is provided on the car wall. A reinforcing plate 4 is welded to the outer wall of the car wall. A second connecting hole is provided on the reinforcing plate 4, which is aligned with the first connecting hole. A nut 41 is inserted into the second connecting hole of the reinforcing plate 4 and welded to the reinforcing plate 4. The handrail inner seat 3 abuts against the inner wall of the car wall and is aligned with the first connecting hole on the car wall. An internal hexagon bolt 31 passes through the handrail inner seat 3. After passing through the first connecting hole and the second connecting hole, the bolt 31 is threadedly connected to the nut 41. Since the nut 41 is welded to the reinforcing plate 4, the operator only needs to screw the hexagon socket bolt 31 into the car to tighten the hexagon socket bolt 31 and the nut 41, thereby fixing the handrail inner seat 3 to the inner wall of the car. By setting the reinforcing plate 4 on the car wall, the support strength of the car wall at the point where the hexagon socket bolt 31 and the nut 41 are screwed can be enhanced, preventing the car wall from deforming due to excessive screwing force. Two annular grooves 32 are provided at intervals on the circumferential wall of the handrail inner seat 3.

[0016] The handrail body 1 is integrally formed from aluminum profile. The cross-section of the handrail body 1 is an elongated circular ring shape, which reduces the weight of the handrail body 1 and increases its aesthetics. End cap mounting seats 11 are integrally formed on the inner sidewalls of the arc-shaped walls at both ends of the handrail body 1 for mounting the end caps on both sides of the handrail body 1. Two spaced-apart thickening layers 12 are integrally formed inward on any straight sidewall of the handrail body 1. Two parallel thickening layers are spaced apart on the straight sidewall with the thickening layers 12. Two long slots 13 extend into two thickened layers 12, respectively. The two long slots 13 are the same length as the armrest body 1. The straight sidewall of the armrest body 1 with the long slots 13 abuts against the armrest outer seat 2. A connecting groove 21 is provided on the armrest outer seat 2. Two self-tapping screws 22 are inserted into the groove wall of the connecting groove 21. The diameter of the self-tapping screws 22 is larger than the width of the long slot 13. The self-tapping screws 22 are screwed into the corresponding long slot 13 and threadedly connected to the long slot 13. Since the armrest body 1 is made of aluminum... The profile is integrally formed. The aluminum profile is relatively soft, and the self-tapping screw 22 can open the long groove 13 during rotation and rotate to form a thread that engages with it. The outer armrest seat 2 is fitted onto the inner armrest seat 3 through the connecting groove 21 and abuts against the car wall. There is a single-sided gap of 0.8 to 1.2 mm between the connecting groove 21 and the inner armrest seat 3. This ensures that the outer armrest seat 2 can be smoothly fitted onto the inner armrest seat 3, while preventing the outer armrest seat 2 from shaking on the inner armrest seat 3 due to excessive gap. Two socket head cap screws 23 are threaded into the outer seat 2 of the handrail. The two socket head cap screws 23 abut against the two annular grooves 32 of the inner seat 3 of the handrail. The two socket head cap screws 23 connect the outer seat 2 of the handrail and the inner seat 3 of the handrail longitudinally by tightening. When the socket head cap screws 23 are engaged in the corresponding annular grooves 32, they can limit the lateral movement of the outer seat 2 of the handrail and the inner seat 3 of the handrail, preventing the outer seat 3 of the handrail from being pulled off the inner seat 3 of the handrail when someone pulls the handrail body 1.

[0017] During installation, the workers first fix the two inner handrail seats 3 to the car wall using hex bolts 31. Then, they fix the two outer handrail seats 2 to the handrail body 1 using self-tapping screws 22. The distance between the two outer handrail seats 2 is the same as the distance between the two inner handrail seats 3. Then, the two outer handrail seats 2 are respectively fitted onto the two inner handrail seats 3 and fixed with hex bolts 23. This completes the installation of the elevator handrail. The whole process can be completed by only one worker in the car, which is convenient and quick.

[0018] When using traditional elevator handrails, it is essential to ensure that the distance between the two connecting feet on the handrail matches the distance between the two first connecting holes on the car wall. Only then can the two connecting feet on the handrail be bolted to the two first connecting holes on the car wall. This results in different specifications of elevator cars requiring different handrail specifications, increasing production costs for manufacturers. However, in this application, since the elongated groove 13 in the handrail body 1 is the same length as the handrail body 1, the handrail outer seat 2 can be threaded to any position of the elongated groove 13 in the handrail body 1 using self-tapping screws 22. This allows the distance between the two handrail outer seats 2 on the handrail body 1 to be adjusted according to the distance between the two first connecting holes on the car wall. The handrail body 1, along with the handrail outer seat 2 and handrail inner seat 3, can adapt to different car specifications. Manufacturers only need to mass-produce handrail bodies 1, handrail outer seats 2, and handrail inner seats 3 of the same specifications to adapt to different car specifications, significantly reducing production costs.

[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. Elevator handrail which is easy to disassemble, characterized in that The handrail comprises a handrail body, a handrail outer seat and a handrail inner seat, the handrail inner seat is abutted on the inner wall of the car wall and connected with the car wall through the hexagonal bolt, the handrail body is integrally formed by aluminum profile, a plurality of parallel long grooves are arranged on the side wall of the handrail body, the handrail outer seat is abutted on the side wall of the handrail body with the long grooves, a connecting groove is arranged on the handrail outer seat, the same number of self-tapping screws as the long grooves are arranged in the groove wall of the connecting groove, the self-tapping screws are screwed into the corresponding long grooves and are threadedly connected with the long grooves, the handrail outer seat is sleeved on the handrail inner seat through the connecting groove and is abutted on the car wall, the hexagonal set screw is threadedly connected in the handrail outer seat and is abutted on the handrail inner seat. The connecting structure between the hexagonal bolt and the car wall comprises that a first connecting hole is arranged on the car wall, a reinforcing plate is welded on the outer wall of the car wall, a second connecting hole is arranged on the reinforcing plate and is aligned with the first connecting hole, a nut is clamped in the second connecting hole of the reinforcing plate, the nut is welded on the reinforcing plate, and the hexagonal bolt is threadedly connected with the nut after passing through the first connecting hole and the second connecting hole.

2. The easily removable elevator handrail of claim 1, wherein: Two ring grooves are arranged on the circumferential wall of the handrail inner seat at intervals, and two hexagonal set screws are threadedly connected in the handrail outer seat, and the two hexagonal set screws are respectively abutted in the two ring grooves of the handrail inner seat.

3. The easily removable elevator handrail of claim 1, wherein: The cross section of the handrail body is long circular ring shape, the straight side wall of the handrail body is abutted on the handrail outer seat, two spaced thickening layers are integrally formed inward on the straight side wall in contact with the handrail outer seat, and two long grooves are arranged on the straight side wall with the thickening layers at intervals, and the two long grooves respectively extend into the two thickening layers.

4. The easily removable elevator handrail of claim 1, wherein: The two long grooves are equal in length to the handrail body.

5. The easily removable elevator handrail of claim 4, wherein: End cover mounting seats are integrally formed on the inner walls of the arc-shaped walls at both ends of the handrail body.

6. The easily removable elevator handrail of claim 4, wherein: A single-sided gap of 0.8-1.2mm exists between the connecting groove and the handrail inner seat.

7. The easily removable elevator handrail of claim 1, wherein: ​

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