Handrail fixing structure of elevator car

Abstract

The invention discloses a handrail fixing structure of an elevator car. The elevator car is provided with a car wall plate. The handrail fixing structure comprises an assembly nut, a handrail base, a locking bolt and a handrail main body; the at least two assembly nuts are arranged on the car wall plate at intervals; the handrail base is arranged corresponding to each assembly nut, and the handrail base abuts against the car wall plate; the locking bolt is inserted into the handrail base; the locking bolt is in threaded connection with the assembly nut so as to lock the handrail base on the car wall plate; the handrail main body comprises a handrail rod and pipe bodies which are arranged on the handrail rod and correspond to the handrail bases; the pipe bodies are respectively sleeved on the corresponding armrest bases; the pipe body is in threaded connection with a set screw; the set screw is provided with an abutting end abutting against the outer wall of the handrail base. The whole structure can be assembled in the lift car, the assembling operation can be achieved through single-person operation, time and labor are saved, and the assembling operation is safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a handrail fixing structure of an elevator car. Background Art

[0002] At present, the installation of handrails in many elevator cars requires workers to tighten nuts or bolts from outside the car to fix the handrails. This installation method requires at least two people to install. When the shaft size is small, there is insufficient space and the standing space outside the car is tight, making it impossible for workers to fix the handrails outside the car. In addition, there are certain safety hazards in installing outside the car. Summary of the Invention

[0003] In response to the above-mentioned technical problems, the purpose of the present invention is to propose a handrail fixing structure for an elevator car, which can be used to assemble the entire structure inside the car, and the assembly work can be completed by a single person, saving time and effort, and the assembly work is safe, reliable and practical.

[0004] The technical solution of the present invention is achieved as follows: a handrail fixing structure of an elevator car, the elevator car having a car wall panel; the handrail fixing structure includes an assembly nut, a handrail base, a locking bolt, and a handrail body;

[0005] At least two of the assembly nuts are spaced apart and arranged on the car wall panel;

[0006] The armrest base is arranged corresponding to each assembly nut, and the armrest base is against the car wall panel;

[0007] The locking bolt is inserted into the handrail base; the locking bolt is threadedly connected to the assembly nut to lock the handrail base to the car wall panel;

[0008] The armrest body includes an armrest rod, a tube body arranged on the armrest rod and corresponding to each armrest base; each tube body is respectively sleeved on the corresponding armrest base; a set screw is threadedly connected to the tube body; the set screw has an abutting end that abuts against the outer wall of the armrest base.

[0009] Furthermore, the assembly nut is fixed to the car wall panel by riveting.

[0010] Furthermore, a plurality of annular grooves are arranged at intervals on the outer wall of the armrest base; and the abutting end of the set screw extends into the annular groove.

[0011] Furthermore, a recessed groove is provided on the end surface of the handrail base facing away from the car wall panel; an insertion channel is provided on the bottom surface of the recessed groove and passes through the handrail base; the rod body of the locking bolt is inserted into the insertion channel, and the head of the locking bolt is accommodated in the recessed groove.

[0012] Furthermore, one end of the tube body is welded to the handrail.

[0013] Furthermore, at least two set screws are arranged on the tube body at intervals along the length direction of the tube body.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] The present invention pre-installs assembly nuts on the car wall panels. Inside the car, the armrest base is locked to the car wall panels using locking bolts. The tubular body is then sleeved onto the armrest base and secured with set screws to secure the armrest body to the base. This combination of methods allows the entire structure to be assembled inside the car, and a single operator can complete the assembly process, saving time and effort. The assembly process is safe, reliable, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 It is a side view structural schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of a top view structure of FIG.

[0019] Figure 3 This is a schematic diagram of the assembly of the armrest seat of the present invention;

[0020] Among them: 1. Car wall panel; 2. Assembly nut; 3. Armrest seat; 31. Groove; 32. Insertion channel; 33. Annular groove; 4. Locking bolt; 5. Armrest body; 51. Armrest rod; 52. Tube body; 6. Set screw. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0022] like Figure 1-3 The figure shows a handrail fixing structure of an elevator car according to this embodiment, wherein the elevator car has a car wall panel 1. The handrail fixing structure is arranged inside the car and fixed on the car wall panel 1.

[0023] The handrail fixing structure includes an assembly nut 2, an armrest base, a locking bolt 4, and an armrest body 5. The assembly nut 2 is pre-fixed to the car wall panel 1 by riveting. At least two assembly nuts 2 are fixed to the car wall panel 1 at intervals. The assembly nut 2 can be arranged inside or outside the car. In this embodiment, the assembly nut 2 is arranged on the outer wall of the car wall panel 1. A perforation is processed on the car wall panel 1 corresponding to each assembly nut 2, and the perforation is connected to the inner hole of the assembly nut 2. The aforementioned handrail base is arranged corresponding to each assembly nut 2, and the handrail base rests on the inner wall of the car wall panel 1. A locking bolt 4 is inserted into each handrail base. The locking bolt 4 is threadedly connected to the assembly nut 2 to lock the handrail base to the car wall panel 1. During the specific structural design, a recess is processed on the end face of the handrail base facing away from the car wall panel 1. A through channel 32 that passes through the handrail base is processed on the bottom surface of the recess. The rod of the locking bolt 4 is inserted into the insertion channel 32, and the head of the locking bolt 4 is accommodated in the recessed groove. When the armrest base 3 is docked to the car wall panel 1, the insertion channel 32 communicates with the aforementioned through-hole. By tightening the locking bolt 4, the rod of the locking bolt 4 is threadedly connected to the nut through the through-hole, thereby locking the armrest base 3 to the car wall panel 1.

[0024] The armrest body 5 includes an armrest rod 51 and a tube 52 mounted on the armrest rod 51. The tube 52 is a hollow structure and is arranged corresponding to each armrest base. Each tube 52 can be sleeved on the corresponding armrest base in a clearance fit. A set screw 6 is threadedly connected to the tube 52. The set screw 6 has an abutting end that abuts the outer wall of the armrest base. The abutment of the set screw ensures that the tube 52 and the armrest base are relatively fixed. One end of each of the tubes 52 is welded to the armrest rod 51. The tube 52 is a circular tube structure. During the specific structural design, a number of annular grooves 3331 are arranged at intervals along the height direction of the outer wall of the armrest base. The abutting end of the set screw 6 extends into the annular groove 3331. The abutting end of the set screw is limited in the annular groove 3331 to improve the stability of the tube 52 fixed to the armrest base 3. At least two set screws 6 are arranged on the tube body 52 at intervals along the length direction of the tube body 52. ​​By increasing the number of set screws 6, the stability of the tube body 52 fixed on the armrest seat 3 is further improved.

[0025] During assembly, inside the car, the armrest base 3 is fastened to the car wall panel 1 by means of the locking bolts 4, and then the tube body 52 is sleeved onto the armrest base 3 and fixed by means of the set screws 6, so as to fix the armrest body 5 to the armrest base 3. In this way, the assembly operation can be carried out inside the car, and the assembly operation can be completed by a single operator, which saves time and effort, and the assembly operation is safe, reliable, and highly practical.

[0026] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A handrail fixing structure for an elevator car, wherein the elevator car has a car wall panel; characterized in that: The armrest fixing structure includes an assembly nut, an armrest base, a locking bolt, and an armrest body; At least two of the assembly nuts are spaced apart and arranged on the car wall panel; The armrest base is arranged corresponding to each assembly nut, and the armrest base is against the car wall panel; The locking bolt is inserted into the handrail base; the locking bolt is threadedly connected to the assembly nut to lock the handrail base to the car wall panel; The armrest body includes an armrest rod, a tube body arranged on the armrest rod and corresponding to each armrest base; each tube body is respectively sleeved on the corresponding armrest base; a set screw is threadedly connected to the tube body; the set screw has an abutting end that abuts against the outer wall of the armrest base.

2. The handrail fixing structure of an elevator car according to claim 1, characterized in that: The assembly nut is fixed to the car wall panel by riveting.

3. The handrail fixing structure of an elevator car according to claim 1, characterized in that: A plurality of annular grooves are arranged at intervals on the outer wall of the armrest base; the abutting end of the set screw extends into the annular groove.

4. The handrail fixing structure of an elevator car according to claim 1, characterized in that: A recessed groove is provided on the end surface of the handrail base facing away from the car wall plate; an insertion channel penetrating the handrail base is provided on the bottom surface of the recessed groove; the rod of the locking bolt is inserted into the insertion channel, and the head of the locking bolt is accommodated in the recessed groove.

5. The handrail fixing structure of an elevator car according to claim 1, characterized in that: One end of the tube body is welded to the handrail.

6. The handrail fixing structure of an elevator car according to claim 1, characterized in that: At least two set screws are arranged on the tube body at intervals along the length direction of the tube body.

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