Car wall bolt and nut

Abstract

The utility model discloses a car wall bolt and nut, and relates to the technical field of elevator car wall bolts and nuts. The bolt comprises a bolt rod body and a hexagonal flange nut, a lengthened hexagonal column is fixedly installed at the top end of the bolt rod body, the hexagonal flange nut is embedded in a square plastic knob assembly, the bolt rod body is connected with the square plastic knob assembly in an inserted mode, and the end of the bolt rod body is connected with the hexagonal flange nut in a threaded inserted mode. And a polished rod part is arranged on the surface of the top end of the bolt rod body. According to the utility model, the bolt rod body is in threaded insertion connection with the hexagonal flange nut in the square plastic knob assembly, and the end part of the bolt rod body is in threaded insertion connection with the hexagonal flange nut, so that the connection operation can be quickly and conveniently completed in a narrow elevator car wall mounting space; the lengthened hexagonal column or the square plastic knob assembly can be rotated without using a tool, so that the disassembly in a narrow elevator car wall can be conveniently realized.

Description

Technical Field

[0001] This utility model relates to the field of elevator car wall bolt and nut technology, specifically to a car wall bolt and nut. Background Technology

[0002] In the field of elevator manufacturing and installation, the stability of the car walls is crucial to the safe operation of elevators. Traditional car wall bolt and nut fastening often uses a combination of bolts, flat washers, spring washers, and nuts.

[0003] The installation space on the elevator car wall is extremely narrow. Installing flat washers, spring washers and nuts in the conventional way is inconvenient and makes it difficult to use tools, resulting in low installation efficiency. In some extremely narrow areas, installation cannot even be completed. When inspecting or replacing car wall components, disassembling and reinstalling the bolt and nut combination is time-consuming and labor-intensive, affecting maintenance efficiency.

[0004] Therefore, a car wall bolt and nut is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a car wall bolt nut in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A car wall bolt nut includes a bolt shank, a hexagonal flange nut, and a square plastic knob assembly. An extended hexagonal post is fixedly installed at the top of the bolt shank. The square plastic knob assembly is embedded with a hexagonal flange nut. The bolt shank is inserted into the square plastic knob assembly, and the end of the bolt shank and the hexagonal flange nut are threaded together.

[0008] Furthermore, the top surface of the bolt rod is provided with a smooth rod portion, and a spring washer and a metal annular flat washer are fitted on the surface of the smooth rod portion, with the spring washer and the metal annular flat washer being slidably disposed on the smooth rod portion.

[0009] Furthermore, the square plastic knob assembly includes a square plastic block, which has a hexagonal mounting hole inside. The top surface of the square plastic block and the top surface of the hexagonal mounting hole have through holes, and a hexagonal flange nut is fixedly installed in the hexagonal mounting hole.

[0010] Furthermore, the outer diameter of the smooth rod portion is equal to the inner diameter of the thread of the bolt rod body.

[0011] Furthermore, the surface of the square plastic block is provided with anti-slip patterns.

[0012] Furthermore, the length of the elongated hexagonal prism is 15–20 mm.

[0013] The beneficial effects of this utility model are as follows:

[0014] The bolt rod is threaded into the hexagonal flange nut inside the square plastic knob assembly, and the connection is made through the end of the bolt rod and the internal thread of the hexagonal flange nut. This allows for quick and easy connection even in the narrow installation space of the elevator car wall. During disassembly, the extended hexagonal column or square plastic knob assembly can be rotated without the need for tools, making it easy to disassemble in the narrow elevator car wall. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front sectional view of the present invention;

[0017] Figure 3 This is an exploded view of this utility model;

[0018] Figure 4 This is a partial exploded view of this utility model;

[0019] Figure 5 This is a schematic diagram of the square plastic knob assembly of this utility model;

[0020] Reference numerals: 1. Bolt rod; 11. Plain rod; 2. Extended hexagonal post; 3. Spring washer; 4. Metal annular flat washer; 5. Square plastic knob assembly; 501. Square plastic block; 502. Hexagonal mounting hole; 503. Through hole; 6. Hexagonal flange nut. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figures 1 to 5 As shown, a car wall bolt nut includes a bolt shank 1 and a hexagonal flange nut 6. An extended hexagonal post 2 is fixedly installed at the top of the bolt shank 1. A hexagonal flange nut 6 is embedded in a square plastic knob assembly 5. The bolt shank 1 is inserted into the square plastic knob assembly 5, and the end of the bolt shank 1 and the hexagonal flange nut 6 are threadedly inserted. Figure 2 , Figure 3 and Figure 5 As shown, specifically, the square plastic knob assembly 5 includes a square plastic block 501, a hexagonal mounting hole 502 is provided in the square plastic block 501, and a through hole 503 is provided on the top surface of the square plastic block 501 and the top surface of the hexagonal mounting hole 502, and a hexagonal flange nut 6 is fixedly installed in the hexagonal mounting hole 502.

[0026] More specifically, during disassembly, the square plastic block 501 is easy for operators to hold and install. By rotating the square plastic block 501, the hexagonal flange nut 6 can be rotated, so that the bolt rod 1 can be smoothly connected / disconnected from the hexagonal flange nut 6, achieving quick fixing and disassembly.

[0027] In some practical applications, the surface of the square plastic block 501 is provided with anti-slip patterns.

[0028] More specifically, the anti-slip pattern on the surface of the square plastic block 501 increases the friction when the operator holds it, making it easier to install and disassemble in narrow spaces and reducing the risk of slipping.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, specifically, a smooth rod portion 11 is provided on the surface of the top end of the bolt rod 1, and a spring washer 3 and a metal annular flat washer 4 are fitted on the surface of the smooth rod portion 11. The spring washer 3 and the metal annular flat washer 4 are slidably disposed on the smooth rod portion 11.

[0030] More specifically, during installation, the spring washer 3 and the metal annular flat washer 4 can be pre-fitted onto the bare rod 11. When the bolt rod 1 is connected to the hexagonal flange nut 6, the spring washer 3 and the metal annular flat washer 4 can automatically take position, playing the role of preventing loosening and evenly distributing pressure.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, the outer diameter of the smooth rod portion 11 is equal to the inner diameter of the thread of the bolt rod body 1.

[0032] More specifically, by adjusting the outer diameter of the thread on the surface of the bolt shank 1, the spring washer 3 and the metal annular flat washer 4 fitted on the smooth part 11 of the bolt shank 1 can be pre-assembled with it, eliminating the time-consuming and laborious process of fitting the washers during installation.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, the length of the extended hexagonal prism 2 is 15-20 mm.

[0034] More specifically, the length of the extended hexagonal column 2 is 15 to 20 millimeters, which ensures that the extended hexagonal column 2 has sufficient operating space in narrow spaces, and does not affect the compactness and stability of the overall structure due to excessive length.

[0035] In summary: When fixing the elevator car wall, the bolt rod 1 is threaded into the hexagonal flange nut 6 inside the square plastic knob assembly 5, and the connection is made through the end of the bolt rod 1 and the internal thread of the hexagonal flange nut 6. This allows for quick and convenient connection within the narrow installation space of the elevator car wall. During disassembly, the extended hexagonal column 2 or the square plastic knob assembly 5 can be rotated without the need for tools, making disassembly convenient within the narrow elevator car wall.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lift wall bolt nut, characterized by, It includes a bolt rod (1), a hexagonal flange nut (6), and a square plastic knob assembly (5). An extended hexagonal post (2) is fixedly installed at the top of the bolt rod (1). The square plastic knob assembly (5) is embedded with a hexagonal flange nut (6). The bolt rod (1) is inserted into the square plastic knob assembly (5), and the end of the bolt rod (1) and the hexagonal flange nut (6) are threadedly inserted.

2. A wall plug screw nut according to claim 1, wherein The bolt rod (1) has a smooth rod portion (11) on its top surface, and a spring washer (3) and a metal annular flat washer (4) are fitted on the surface of the smooth rod portion (11). The spring washer (3) and the metal annular flat washer (4) are slidably arranged on the smooth rod portion (11).

3. A wall plug screw according to claim 1, wherein The square plastic knob assembly (5) includes a square plastic block (501), which has a hexagonal mounting hole (502) and a through hole (503) on the top surface of the square plastic block (501) and the top surface of the hexagonal mounting hole (502). A hexagonal flange nut (6) is fixedly installed in the hexagonal mounting hole (502).

4. A wall plug screw nut according to claim 2, wherein The outer diameter of the smooth rod (11) is equal to the inner diameter of the thread of the bolt rod (1).

5. A wall plug screw nut according to claim 3, wherein The surface of the square plastic block (501) is provided with anti-slip patterns.

6. A wall plug screw according to claim 1, wherein The length of the extended hexagonal prism (2) is 15-20 mm.

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