CN216406604U

CN216406604U - Protective door with top and bottom shaft sleeve

Info

Publication number: CN216406604U
Application number: CN202122534903.6U
Authority: CN
Inventors: 郭利; 刘新华
Original assignee: Zhongnuober Environmental Engineering Shandong Co ltd
Current assignee: Zhongnuober Environmental Engineering Shandong Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-29
Anticipated expiration: 2031-10-21

Abstract

The utility model relates to the technical field of production and processing of protective doors, in particular to a protective door with a world shaft sleeve. The first leaf is provided with a shaft hole and is arranged on the door leaf; the second leaf is provided with a rotating shaft and is arranged on the door frame; the lubricating component comprises a shaft sleeve, the shaft sleeve is arranged in the shaft hole, a lubricating hole and a rotating hole which are communicated with each other are formed in the shaft sleeve, the inner diameter of the lubricating hole is larger than that of the rotating hole, the rotating shaft is sequentially inserted into the lubricating hole and the rotating hole, and a lubricating medium is arranged in the lubricating hole and the rotating hole. The protective door has the advantages that the bearing performance of the shaft sleeve is good, the protective door is not easy to damage, and the phenomenon of sagging deformation of the door leaf can be reduced. And the lubricating medium in the lubricating hole and the rotating hole can improve the rotating flexibility of the rotating shaft.

Description

Protective door with top and bottom shaft sleeve

Technical Field

The utility model relates to the technical field of production and processing of protective doors, in particular to a protective door with a top and bottom shaft sleeve.

Background

The existing protective door generally comprises a door leaf, a door frame and hinges, wherein the door leaf is movably connected with the door frame through the hinges. The existing hinge for the top and bottom shafts comprises a first leaf fixed on a door leaf and a second leaf fixed on a door frame, wherein the first leaf is provided with a shaft hole, the second leaf is provided with a rotating shaft, three bearings are installed in the shaft hole, and the rotating shaft of the second leaf is inserted into the three bearings to be rotatably connected with the first leaf. However, after the three bearings are used for a long time, the three bearings are easily damaged, so that the door leaf is drooped, and the use effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the protective door with the top and bottom shaft sleeve, the shaft sleeve has good bearing performance, is not easy to damage, can reduce the phenomenon of sagging deformation of the door leaf, and can improve the rotation flexibility of the rotating shaft by lubricating media in the lubricating hole and the rotating hole, thereby effectively solving the problems in the prior art.

In order to solve the problems, the utility model provides a protective door with a top and bottom shaft sleeve, which comprises a door leaf, a door frame and a top and bottom shaft hinge, wherein the door leaf is movably connected to the door frame through the top and bottom shaft hinge, and the top and bottom shaft hinge comprises a first leaf, a second leaf and a lubricating component. The first leaf is provided with a shaft hole and is arranged on the door leaf; the second leaf is provided with a rotating shaft and is arranged on the door frame; the lubricating component comprises a shaft sleeve, the shaft sleeve is arranged in the shaft hole, a lubricating hole and a rotating hole which are communicated with each other are formed in the shaft sleeve, the inner diameter of the lubricating hole is larger than that of the rotating hole, the rotating shaft is sequentially inserted into the lubricating hole and the rotating hole, and a lubricating medium is arranged in the lubricating hole and the rotating hole.

Furthermore, the inner wall of the rotating hole is provided with a spiral groove which is communicated with the lubricating hole, and a lubricating medium is filled in the spiral groove.

Furthermore, the spiral groove comprises a positive spiral section and a negative spiral section which are communicated, and the spiral directions of the positive spiral section and the negative spiral section are opposite.

Furthermore, the lubricating component further comprises a wear-resistant sealing cover, the wear-resistant sealing cover is arranged in the lubricating hole and provided with a jack for inserting the rotating shaft, and the outer surface of the rotating shaft abuts against the inner wall of the jack.

Furthermore, an annular rib is formed on one side, facing the lubricating hole, of the wear-resistant sealing cover, the annular rib is inserted into the lubricating hole in an interference mode, and the wear-resistant sealing cover is abutted to the shaft sleeve.

Furthermore, the wear-resistant sealing cover is a polytetrafluoroethylene sealing cover.

Furthermore, the lubricating assembly further comprises a shaft bowl, the shaft bowl is fixed in the shaft hole, and the shaft sleeve is installed on the shaft bowl.

Furthermore, the inside guiding hole that is equipped with intercommunication lubrication hole and changes between the hole of axle sleeve, the internal diameter of guiding hole reduces in the direction that is close to changeing the hole gradually.

Further, the lubricating medium is graphene powder.

Further, the shaft sleeve is a high-force brass shaft sleeve.

The utility model has the advantages that the bearing performance of the shaft sleeve is good, the shaft sleeve is not easy to damage, and the phenomenon of sagging deformation of the door leaf can be reduced. And the lubricating medium in the lubricating hole and the rotating hole can improve the rotating flexibility of the rotating shaft. The protective door with the top and bottom shaft sleeve effectively solves the problems in the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a protective door according to an embodiment of the utility model.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a first sheet according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a second sheet according to an embodiment of the utility model.

Fig. 5 is a schematic structural diagram of a shaft sleeve according to an embodiment of the utility model.

Fig. 6 is a schematic structural view of the bushing mounted on the first leaf according to an embodiment of the present invention.

Wherein: 1. a door leaf; 2. a door frame; 3. a top and bottom shaft hinge; 31. a first sheet; 311. a shaft hole; 32. a second sheet; 321. a rotating shaft; 33. a shaft sleeve; 331. a lubrication hole; 332. hole turning; 3321. a helical groove; 33211. a positive helical section; 33212. a reverse-helical segment; 333. a guide hole; 34. a wear-resistant sealing cover; 341. a jack; 342. an annular rib; 35. a shaft bowl; 4. a lubricating medium.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to 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.

In the present invention, as shown in fig. 1 to 6, a protective door with a top and bottom shaft sleeve 33 is provided, which includes a door leaf 1, a door frame 2 and a top and bottom shaft hinge 3, wherein the door leaf 1 is movably connected to the door frame 2 through the top and bottom shaft hinge 3, and the top and bottom shaft hinge 3 includes a first leaf 31, a second leaf 32 and a lubricating assembly. The first and second leaf 31 has a shaft hole 311 and is attached to the door 1; the second leaf 32 has a rotating shaft 321 and is mounted on the door frame 2; the lubricating component comprises a shaft sleeve 33, the shaft sleeve 33 is installed in the shaft hole 311, a lubricating hole 331 and a rotating hole 332 which are communicated with each other are formed in the shaft sleeve 33, the inner diameter of the lubricating hole 331 is larger than that of the rotating hole 332, the rotating shaft 321 is sequentially inserted into the lubricating hole 331 and the rotating hole 332, and lubricating media 4 are arranged in the lubricating hole 331 and the rotating hole 332.

The rotation shaft 321 of the second leaf 32 of the protective door of the present invention can rotate in the lubrication hole 331 and the rotation hole 332 of the sleeve 33. Compared with three bearings, the bearing sleeve 33 has good bearing performance and is not easy to damage, and the phenomenon of sagging deformation of the door leaf 1 can be reduced. Further, the lubricating medium 4 in the lubricating hole 331 and the rotation hole 332 can improve the flexibility of rotation of the rotation shaft 321.

For the hinge 3 with the upper and lower shafts installed above the door 1 and the door frame 2, when the lubricating medium 4 in the rotating hole 332 moves downwards and is accumulated, the lubricating medium 4 in the lubricating hole 331 can move towards the rotating hole 332 under the action of gravity, and when the door 1 is opened and closed, the hinge 3 with the upper and lower shafts vibrates, and the lubricating medium 4 in the lubricating hole 331 can move towards the rotating hole 332 under the action of vibration, so that the lubricating medium 4 in the rotating hole 332 can be supplemented, the lubricating medium 4 in the rotating hole 332 is distributed more uniformly, and the lubricating performance is improved. For the top and bottom shaft hinge 3 installed below the door leaf 1 and the door frame 2, the lubricating medium 4 in the lubricating hole 331 can move to the rotating hole 332 under the action of vibration, so that the uniformity of the distribution of the lubricating medium 4 in the rotating hole 332 is improved.

The manner in which the first leaf 31 and the second leaf 32 are respectively attached to the door 1 and the door frame 2 is not limited in the present invention, and for example, a screw connection may be used.

In the preferred embodiment, more specifically, the inner wall of the rotary hole 332 is provided with a spiral groove 3321, the spiral groove 3321 is communicated with the lubricating hole 331, and the spiral groove 3321 is filled with the lubricating medium 4. As shown in fig. 5, the spiral groove 3321 enables the lubricant 4 to be distributed more uniformly on the inner wall of the rotary bore 332, improving the lubrication performance, and the lubricant 4 is less likely to fall off from the spiral groove 3321.

In the embodiment shown in FIG. 5, more particularly, the helical groove 3321 includes a forward spiral portion 33211 and a reverse spiral portion 33212 that are interconnected, the forward spiral portion 33211 and the reverse spiral portion 33212 having opposite spiral directions. The lubricant 4 in the spiral groove 3321 is easily attached to the rotating shaft 321, and therefore, when the rotating shaft 321 rotates relative to the rotating hole 332, the lubricant 4 in the spiral groove 3321 is easily moved. The lubricating medium 4 can move between the forward spiral section 33211 and the reverse spiral section 33212, and the uniformity of the distribution of the lubricating medium 4 in the axial direction of the inner wall of the rotary hole 332 is improved.

In a preferred embodiment, more specifically, the lubricating assembly further includes a wear-resistant sealing cover 34, the wear-resistant sealing cover 34 is installed in the lubricating hole 331, the wear-resistant sealing cover 34 is provided with a plug hole 341 into which the rotating shaft 321 is inserted, and an outer surface of the rotating shaft 321 abuts against an inner wall of the plug hole 341. As shown in fig. 2 and 6, the wear-resistant sealing cover 34 can seal the shaft sleeve 33, prevent the lubricating medium 4 in the lubricating hole 331 and the rotary hole 332 from flowing out, reduce the foreign matters from entering the lubricating hole 331 and the rotary hole 332, and reduce the wear of the shaft 321 and the shaft sleeve 33 caused by the foreign matters.

In the embodiment shown in fig. 6, more specifically, an annular rib 342 is formed on one side of the wear-resistant seal cover 34 facing the lubrication hole 331, the annular rib 342 is inserted into the lubrication hole 331 by interference, and the wear-resistant seal cover 34 abuts against the sleeve 33. The clearance between the wear-resistant sealing cover 34 and the inner side of the shaft sleeve 33 can be reduced through interference mounting, and the interference mounting mode is simple, quick and firm. The wear-resistant sealing cover 34 can be detached, so that the lubricating medium 4 in the shaft sleeve 33 can be supplemented conveniently, and the maintenance is facilitated.

In a preferred embodiment, more specifically, the wear resistant seal 34 is a teflon seal. The polytetrafluoroethylene sealing cover has the advantages of good wear resistance, long service life and low friction coefficient, and can improve the lubricating property.

In the preferred embodiment, more specifically, the lubrication assembly further includes a shaft bowl 35, the shaft bowl 35 is fixed to the shaft hole 311, and the shaft sleeve 33 is mounted on the shaft bowl 35. As shown in fig. 2, the axle bowl 35 can further improve the load-bearing performance of the top and bottom axle hinge 3.

In the embodiment shown in fig. 5, more specifically, the sleeve 33 is provided with a guide hole 333 communicating between the lubrication hole 331 and the rotary hole 332 inside, and the inner diameter of the guide hole 333 is gradually reduced in the direction approaching the rotary hole 332. The guide hole 333 can guide the lubricating medium 4 in the lubricating hole 331 to move into the turning hole 332.

In a preferred embodiment, the lubricating medium 4 is further specifically graphene powder. The graphene powder has good lubricating property.

In a preferred embodiment, the bushing 33 is further specifically a high force brass bushing. The high-strength brass shaft sleeve has the advantages of good wear resistance, strong bearing property, corrosion resistance and difficult damage.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a guard gate with world axle sleeve, includes door leaf, door frame and world axle hinge, the door leaf passes through world axle hinge swing joint in the door frame, its characterized in that, the world axle hinge includes:

the first leaf is provided with a shaft hole and is arranged on the door leaf;

the second leaf is provided with a rotating shaft and is arranged on the door frame;

the lubricating component comprises a shaft sleeve, the shaft sleeve is arranged in the shaft hole, a lubricating hole and a rotating hole which are communicated with each other are formed in the shaft sleeve, the inner diameter of the lubricating hole is larger than that of the rotating hole, the rotating shaft is sequentially inserted into the lubricating hole and the rotating hole, and a lubricating medium is arranged in the lubricating hole and the rotating hole.

2. The protective door with the shaft sleeve of the heaven and earth shaft as claimed in claim 1, wherein the inner wall of the rotating hole is provided with a spiral groove, the spiral groove is communicated with the lubricating hole, and the lubricating medium is filled in the spiral groove.

3. The protective door with the shaft sleeve for the heaven and earth shafts as claimed in claim 2, wherein the spiral groove comprises a forward spiral section and a reverse spiral section which are communicated with each other, and the spiral directions of the forward spiral section and the reverse spiral section are opposite.

4. The protective door with the top and bottom shaft sleeve as claimed in claim 1, wherein the lubricating assembly further comprises a wear-resistant sealing cover, the wear-resistant sealing cover is mounted in the lubricating hole, the wear-resistant sealing cover is provided with a jack for inserting the rotating shaft, and the outer surface of the rotating shaft abuts against the inner wall of the jack.

5. The protective door with the shaft sleeve of the top and bottom ground shaft as claimed in claim 4, wherein an annular rib is formed on one side of the wear-resistant sealing cover facing the lubrication hole, the annular rib is inserted into the lubrication hole in an interference manner, and the wear-resistant sealing cover abuts against the shaft sleeve.

6. The protective door with the top and bottom shaft sleeve as claimed in claim 4 or 5, wherein the wear-resistant sealing cover is a polytetrafluoroethylene sealing cover.

7. The guard door with a top-bottom shaft sleeve as claimed in claim 1, wherein the lubrication assembly further comprises a shaft bowl fixed to the shaft hole, the shaft sleeve being mounted to the shaft bowl.

8. The protective door of claim 1, wherein a guide hole communicating between the lubrication hole and the rotation hole is formed in the shaft sleeve, and an inner diameter of the guide hole is gradually reduced in a direction approaching the rotation hole.

9. The guard door with a shaft sleeve of a heaven and earth shaft as claimed in claim 1, wherein the lubricating medium is graphene powder.

10. The protective door having a shaft sleeve of a heaven and earth shaft according to claim 1, wherein the shaft sleeve is a high force brass shaft sleeve.