Handrail fixing structure of elevator car

Abstract

This utility model discloses a handrail fixing structure for an elevator car. The elevator car has a car wall panel. The handrail fixing structure includes mounting nuts, handrail bases, locking bolts, and a handrail body. At least two mounting nuts are spaced apart on the car wall panel. Handrail bases are arranged corresponding to each mounting nut and abut against the car wall panel. Locking bolts are inserted into the handrail bases and are threadedly connected to the mounting nuts to lock the handrail bases to the car wall panel. The handrail body includes a handrail rod and a tube body arranged on the handrail rod corresponding to each handrail base. Each tube body is sleeved on the corresponding handrail 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 handrail base. This utility model enables assembly of the entire structure inside the car, and the assembly operation can be completed by a single person, saving time and effort, and ensuring safe and reliable assembly.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a handrail fixing structure for an elevator car. Background Technology

[0002] Currently, many elevator car handrail installations require workers to tighten nuts or bolts from outside the car to secure the handrails. This installation method requires at least two people. When the shaft size is small, there is insufficient space, and the space for people to stand outside the car is tight, making it impossible to secure the handrails outside the car. Furthermore, installing the handrails outside the car poses certain safety hazards. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a handrail fixing structure for elevator cars, which enables the assembly of the entire structure inside the car, and the assembly can be carried out by a single person, saving time and effort, and ensuring safe and reliable assembly operations with strong practicality.

[0004] The technical solution of this utility model is implemented as follows: a handrail fixing structure for an elevator car, wherein the elevator car has 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 aforementioned assembly nuts are spaced apart on the car wall panel;

[0006] The handrail base is arranged corresponding to each mounting nut, and the handrail base abuts against the car wall panel;

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

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

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

[0010] Furthermore, the outer wall of the armrest base is provided with several annular grooves at intervals; the abutting end of the set screw extends into the annular groove.

[0011] Furthermore, the handrail base has a recessed groove on the end face facing away from the car wall panel; the bottom surface of the recessed groove has an insertion channel that penetrates the handrail base; 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.

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

[0013] Furthermore, at least two set screws are spaced apart on the tube body along its length.

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

[0015] This invention features pre-installed assembly nuts on the car wall panel. Inside the car, the handrail seat is locked to the car wall panel using locking bolts. The tubular body is then fitted onto the handrail seat and secured with set screws to fix the handrail body to the handrail seat. This combination of methods allows for assembly of the entire structure inside the car, and the assembly can be performed by a single person, saving time and effort. The assembly operation is safe, reliable, and highly practical. Attached Figure Description

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

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

[0018] Figure 2 for Figure 1 A top view structural diagram;

[0019] Figure 3 This is an assembly diagram of the armrest seat of this utility model;

[0020] The components are: 1. Car wall panel; 2. Assembly nut; 3. Handrail seat; 31. Groove; 32. Through channel; 33. Annular groove; 4. Locking bolt; 5. Handrail body; 51. Handrail rod; 52. Tube body; 6. Set screw. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail 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 definite definition of the scope of protection of the present invention.

[0022] like Figure 1-3 The diagram shows a handrail fixing structure for 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 to the car wall panel 1.

[0023] The handrail fixing structure includes an assembly nut 2, a handrail base, a locking bolt 4, and a handrail body 5. The assembly nuts 2 are pre-fixed to the car wall panel 1 by riveting or welding. At least two assembly nuts 2 are fixed to the car wall panel 1 at intervals. The assembly nuts 2 can be arranged inside or outside the car. In this embodiment, the assembly nuts 2 are arranged on the outer wall of the car wall panel 1. A through hole is machined on the car wall panel 1 corresponding to each assembly nut 2, and this through hole communicates with the inner hole of the assembly nut 2. The aforementioned handrail base is arranged corresponding to each assembly nut 2, and the handrail base abuts against 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 onto the car wall panel 1. In the specific structural design, a groove is machined on the end face of the handrail base facing away from the car wall panel 1. A through-hole 32 is machined on the bottom surface of the groove, penetrating the handrail base. 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 recess. When the handrail seat 3 is aligned with the car wall panel 1, the insertion channel 32 is connected to 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 handrail seat 3 onto the car wall panel 1.

[0024] The aforementioned handrail body 5 includes a handrail rod 51 and a tube 52 mounted on the handrail rod 51. The tube 52 is a hollow structure, arranged corresponding to each handrail base. Each tube 52 can be fitted onto its corresponding handrail base with a clearance fit. A set screw 6 is threaded onto the tube 52. The set screw 6 has an abutting end that abuts against the outer wall of the handrail base. The abutting of the set screws secures the tube 52 and the handrail base. One end of each tube 52 is welded to the handrail rod 51. The tube 52 is a circular tube structure. In the specific structural design, several annular grooves 3331 are spaced at intervals along the height direction on the outer wall of the handrail base. The abutting end of the aforementioned set screw 6 extends into the annular groove 3331. The abutting end of the set screw is confined within the annular groove 3331 to improve the stability of the tube 52 fixed to the handrail base 3. At least two set screws 6 are spaced apart on the tube body 52 along its length. Increasing the number of set screws 6 further improves the stability of the tube body 52 fixed to the handrail seat 3.

[0025] During assembly, inside the car, the handrail seat 3 is locked to the car wall panel 1 using locking bolts 4. Then, the tube body 52 is fitted onto the handrail seat 3 and secured with set screws 6 to fix the handrail body 5 to the handrail seat 3. This method allows for assembly inside the car, and can be performed by a single person, saving time and effort. The assembly is safe, reliable, and highly practical.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

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

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

3. The handrail fixing structure for an elevator car according to claim 1, characterized in that: The outer wall of the armrest base is provided with several annular grooves at intervals; the abutting end of the set screw extends into the annular groove.

4. The handrail fixing structure for an elevator car according to claim 1, characterized in that: The handrail base has a recessed groove on the end face facing away from the car wall panel; the bottom surface of the recessed groove has an insertion channel that passes through the handrail base; 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 for an elevator car according to claim 1, characterized in that: One end of the tube is welded to the handrail.

6. The handrail fixing structure for an elevator car according to claim 1, characterized in that: At least two set screws are spaced apart on the tube along its length.

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