CN211229958U

CN211229958U - Pulley block structure

Info

Publication number: CN211229958U
Application number: CN201921124318.5U
Authority: CN
Inventors: 王林
Original assignee: Foshan Shunde Yikai Metal Products Co ltd
Current assignee: Zhongshan Linrun Hardware Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-08-11
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a pulley block structure, which comprises a bearing shell, a fixed screw and a bearing assembly, wherein the fixed screw is riveted on the bearing assembly; the bearing assembly comprises an outer shell and an inner shell, wherein the outer shell and the inner shell are both provided with openings; the bearing shell is provided with a cavity, the outer shell and the inner shell are butted in the cavity, and the openings of the outer shell and the inner shell are opposite; a containing cavity is formed between the butted outer shell and the inner shell, a bearing inner sleeve is placed in the containing cavity, and the bearing inner sleeve is of an integrated structure; the bearing inner sleeve is provided with a concave position, and balls are placed in the concave position. It has the advantages of simple structure, compact matching and the like; therefore, the product has excellent technical and economic performance.

Description

Pulley block structure

[ technical field ] A method for producing a semiconductor device

The utility model mainly relates to a pulley block structure.

[ background of the invention ]

The screw is a general term of the fastener, the screw is a tool for fastening the parts of the device step by utilizing the physics and mathematical principle of the inclined plane circular rotation and friction of the object, and the application range of the screw is very wide; the action of the push-pull type hanging door structure mainly comprises suspension movement, so that the hanging door can generate transverse displacement to control opening or closing, the screw applied to the push-pull door is particularly suitable for not only locking but also rotating, and a novel screw structure is developed for facilitating use of the hanging door.

[ Utility model ] content

In order to solve the problem, the utility model provides a pulley block structure.

The pulley block structure adopts the following technical scheme:

a pulley block structure comprises a bearing shell, a fixing screw and a bearing assembly, wherein the fixing screw is riveted on the bearing assembly;

the bearing assembly comprises an outer shell and an inner shell, wherein the outer shell and the inner shell are both provided with openings; the bearing shell is provided with a cavity, the outer shell and the inner shell are butted in the cavity, and the openings of the outer shell and the inner shell are opposite; a containing cavity is formed between the butted outer shell and the inner shell, a bearing inner sleeve is placed in the containing cavity, and the bearing inner sleeve is of an integrated structure; the bearing inner sleeve is provided with a concave position, and balls are placed in the concave position.

Preferably, the set screw includes a locking head having an internal thread.

Preferably, the locking head has a projecting ring provided with anti-slip teeth.

Preferably, the fixing screw is provided with a joint part, the joint part and the locking head are of an integrated structure, and the joint part is riveted on the bearing inner sleeve.

Preferably, the protruding ring has a hexagonal cross-section.

The utility model discloses compare produced beneficial effect with the background art:

the utility model provides a pulley block structure, which adopts a bearing inner sleeve integrated structure, the whole structure is more stable, and the bearing inner sleeve is provided with concave balls; meanwhile, an outer shell and an inner shell are arranged to wrap the bearing inner sleeve to play a role in protection; the fixed screw is riveted on the bearing assembly, mainly riveted on the bearing inner sleeve, and can rotate more smoothly; the top of the fixing screw is provided with a cross-shaped knob groove, and the cross section of the projecting ring is hexagonal, so that the fixing screw is convenient to assemble and disassemble; the novel multifunctional electric heating cooker has the advantages of simple structure, compact matching, convenience in use, reasonable design and the like; therefore, the product has excellent technical and economic performance.

[ description of the drawings ]

Fig. 1 is a schematic cross-sectional view of a pulley block structure in a preferred embodiment of the present invention;

fig. 2 is an exploded view of the pulley block structure in the preferred embodiment of the present invention.

[ detailed description ] embodiments

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

The utility model provides a preferred embodiment: as shown in fig. 1 and 2, a pulley block structure includes a bearing housing 1, a fixing screw 2 and a bearing assembly 3, wherein the fixing screw 2 is riveted to the bearing assembly 3; the bearing shell is made of plastic.

The bearing assembly 3 comprises an outer shell 31 and an inner shell 32, wherein the outer shell 31 and the inner shell 32 are both provided with openings 33; the bearing shell 1 is provided with a cavity 11, the outer shell 31 and the inner shell 32 are butted in the cavity 11, and the openings of the outer shell 31 and the inner shell 32 are arranged oppositely; the opening of the outer shell is matched and butted with the opening of the inner shell, so that a cavity 33 is formed between the outer shell 31 and the inner shell 32, the bearing inner sleeve 4 is placed in the cavity 33, and the bearing inner sleeve 4 is of an integrated structure; the bearing inner sleeve 4 is provided with a concave position 41, and a ball 42 is placed in the concave position 41.

The fixing screw 2 comprises a locking head 21, and the locking head 21 is provided with threads; the locking head 21 is provided with a protruding ring 22, the cross section of the protruding ring 22 is hexagonal, and the protruding ring 22 is provided with anti-slip teeth 23. The fixing screw 2 is provided with a joint part 24, the joint part 24 and the locking head 21 are of an integrated structure, and the joint part 24 is riveted on the bearing inner sleeve 4; the bearing inner sleeve reduces friction by using the balls to increase smoothness, so that the bearing shell rotates on the fixing screw through the bearing.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. A pulley block structure is characterized in that: the bearing comprises a bearing shell, a fixing screw and a bearing assembly, wherein the fixing screw is riveted on the bearing assembly;

2. The pulley block structure according to claim 1, wherein: the set screw includes a locking head having threads.

3. The pulley block structure according to claim 2, wherein: the locking head is provided with a convex ring, and the convex ring is provided with anti-skidding teeth.

4. The pulley block structure according to claim 2, wherein: the fixing screw is provided with a joint part, the joint part and the locking head are of an integrated structure, and the joint part is riveted on the bearing inner sleeve.

5. The pulley block structure according to claim 3, wherein: the cross section of the bulge loop is hexagonal.