CN213879177U

CN213879177U - Cable sealing structure

Info

Publication number: CN213879177U
Application number: CN202022353542.0U
Authority: CN
Inventors: 刘召; 徐会正; 张炜; 陈洪安
Original assignee: Tsinghua Tongchuang Robot Co ltd
Current assignee: Tsinghua Tongchuang Robot Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-08-03
Anticipated expiration: 2030-10-21

Abstract

The utility model provides a cable sealing structure, which comprises a compression structure and an elastic sealing block; the elastic sealing block is provided with at least one first through hole capable of passing through cables, the compression structure is provided with second through holes, the number of the second through holes capable of passing through the cables is larger than or equal to that of the first through holes, and each first through hole is arranged on the inner side of the second through hole; the compressing structure is provided with a cavity structure capable of radially compressing the first through hole, the elastic sealing block is arranged in the cavity structure, and the second through hole is communicated with the cavity structure. A cable seal structure, solved the relatively poor technical problem of cable seal structure effect that is used for industrial robot among the prior art.

Description

Cable sealing structure

Technical Field

The utility model belongs to the technical field of industrial robot, especially, relate to a cable seal structure.

Background

The inner cavity of the industrial robot needs to keep the sealing performance through a sealing structure, in a general industrial robot, the sealing can be achieved by multiple means, if a cover plate is coated with a sealing glue, an O-shaped ring is added, an oil seal can be added to a rotating part, and the cable sealing structure for the industrial robot in the prior art is poor in effect.

Disclosure of Invention

In view of this, the utility model aims at providing a cable seal structure has solved the relatively poor technical problem of cable seal structure effect that is used for industrial robot among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a cable sealing structure comprises a compression structure and an elastic sealing block;

the elastic sealing block is provided with at least one first through hole capable of allowing cables to pass through, the compression structure is provided with second through holes, the number of the second through holes capable of passing through the cables is larger than or equal to that of the first through holes, and each first through hole is arranged on the inner side of the second through hole;

the pressing structure is provided with a cavity structure capable of radially pressing the first through hole, the elastic sealing block is arranged in the cavity structure, and the second through hole is communicated with the cavity structure.

Furthermore, the compressing structure comprises an annular pressure plate and a compressing sleeve, one end of the compressing sleeve is fixedly connected with the annular pressure plate, the second through hole is formed in the annular pressure plate, the inner cavity of the compressing sleeve is of the cavity structure, and the second through hole and the compressing sleeve are coaxial.

Further, cable seal structure still includes the mounting, the mounting includes fixed cover, adapter sleeve and revolves wrong structure, fixed cover one end pass through connection structure with hold-down structure can dismantle the connection, fixed cover other end with the adapter sleeve rigid coupling, it is in to revolve wrong structure setting fixed cover outer wall, the adapter sleeve outer wall is equipped with the external screw thread, be equipped with in the fixed cover can be right the spacing limiting plate of elastic sealing piece, be equipped with the third through-hole on the limiting plate, the quantity that the third through-hole can pass through the cable is the same with the quantity that the second through-hole can pass through the cable, works as compress tightly the cover with fixed cover is connected fixedly back, elastic sealing piece supports on the limiting plate.

Furthermore, the connecting structure comprises a plurality of screws, the annular pressure plate is connected with the fixed sleeve through the plurality of screws, and the plurality of screws are arranged in a circumferential manner by using the axis of the second through hole.

Furthermore, connection structure includes helicitic texture, compress tightly the cover outer wall and pass through helicitic texture with fixed cover inner wall is connected.

Furthermore, the outer wall of the elastic sealing block is provided with a positioning end face, and the pressing sleeve abuts against the positioning end face.

Further, the cavity structure is a truncated cone-shaped cavity.

Furthermore, the included angle between the inclined edge of the cross section of the truncated cone-shaped cavity and the horizontal line is 3-6 degrees.

Further, the elastic sealing block is a rubber column or a silica gel column, and the Shore hardness of the elastic sealing block is 40-55A.

Furthermore, each first through-hole is provided with an opening edge capable of installing a cable.

Compared with the prior art, a cable seal structure have following advantage:

the utility model discloses a cable seal structure, realize the location to the cable through the first through-hole of elasticity sealing block, in the process of compressing tightly structure and fixed cover connection, the cavity structure carries out radial overstock to the first through-hole on the elasticity sealing block, and the elasticity sealing block takes place deformation and then can realize holding tightly the cable of placing in the first through-hole to reach sealed effect; this cable seal structure can guarantee that the cable gets into robot body department and reaches reliable sealed, ensures to isolate robot body cavity and external atmosphere in.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a cable sealing structure according to a first embodiment of the present invention;

fig. 2 is a schematic view of a compression structure in a cable sealing structure according to a first embodiment of the present invention;

fig. 3 is a schematic view of a cable sealing structure according to a second embodiment of the present invention;

fig. 4 is a schematic view of a compression structure in a cable sealing structure according to a second embodiment of the present invention;

fig. 5 is a cross-sectional view of a cable sealing structure according to a first embodiment of the present invention;

fig. 6 is a schematic view of a first through hole structure of an elastic sealing block in a cable sealing structure according to an embodiment of the present invention;

fig. 7 is a schematic structural view of two first through holes of an elastic sealing block in a cable sealing structure according to an embodiment of the present invention;

fig. 8 is a schematic structural view of three first through holes of the elastic sealing block in the cable sealing structure according to the embodiment of the present invention.

Description of reference numerals:

1. a compression structure; 11. the second through hole, 2, the screw, 3, the cable, 4 and the elastic sealing block; 41. first through-hole, 5, mounting.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A cable sealing structure comprises a compression structure 1 and an elastic sealing block 4;

the elastic sealing block 4 is provided with three first through holes 41 through which the cables 3 can pass, the compression structure 1 is provided with a second through hole 11, the second through hole 11 can pass through the three cables 3, each first through hole 41 is arranged on the inner side of the second through hole 11, each first through hole 41 is provided with a notch edge capable of installing the cable 3, and the installation between the cable 3 and the first through hole 41 can be facilitated through the notch edge;

the compressing structure 1 is provided with a cavity structure capable of radially compressing the first through hole 41, the elastic sealing block 4 is arranged in the cavity structure, and the second through hole 11 is communicated with the cavity structure. The pressing structure 1 comprises an annular pressing plate and a pressing sleeve, one end of the pressing sleeve is connected with the annular pressing plate in an integrated mode, the second through hole 11 is formed in the annular pressing plate, the inner cavity of the pressing sleeve is of a cavity structure, the second through hole 11 and the pressing sleeve are coaxial, the elastic sealing block 4 is a silica gel column, the Shore hardness of the elastic sealing block 4 is 45A, the outer wall of the elastic sealing block 4 is provided with a positioning end face, and the pressing sleeve abuts against the positioning end face.

The cable sealing structure further comprises a fixing piece 5, the fixing piece 5 comprises a fixing sleeve, a connecting sleeve and a screwing structure, one end of the fixing sleeve is detachably connected with the pressing structure 1 through the connecting structure, the other end of the fixing sleeve is integrally connected with the connecting sleeve, the pressing sleeve is arranged in the fixing sleeve, the screwing structure is arranged on the outer wall of the fixing sleeve, an external thread is arranged on the outer wall of the connecting sleeve, a limiting plate capable of limiting the elastic sealing block 4 is arranged in the fixing sleeve, a third through hole is arranged on the limiting plate, the number of the third through holes capable of passing the cables 3 is the same as the number of the second through holes capable of passing the cables 3, after the pressing sleeve is fixedly connected with the fixing sleeve, the elastic sealing block 4 is abutted against the limiting plate, in the embodiment, the screwing structure is a hexagonal plate, the middle of the hexagonal plate is provided with a mounting hole, the fixing structure is sleeved in the mounting hole, in the process of connecting the pressing structure with the fixing sleeve, the cavity structure is round platform shape cavity, and the sectional hypotenuse of round platform shape cavity is 3 with the contained angle of water flat line, realizes the location to cable 3 through the first through-hole 41 of elastic sealing piece 4, and the cavity structure carries out radial overstock to the first through-hole 41 on the elastic sealing piece, and elastic sealing piece takes place deformation and then can realize holding tightly the cable of placing in first through-hole 41 to reach sealed effect.

In the first embodiment, as shown in fig. 1-2, the connection structure includes four screws 2, the annular pressure plate is connected to the fixing sleeve through the four screws 2, and the four screws 2 are circumferentially arranged around the axis of the second through hole 11.

In the second embodiment, as shown in fig. 3-4, the connection structure includes a thread structure, and the outer wall of the pressing sleeve is connected with the inner wall of the fixing sleeve through the thread structure.

Working mode of the example

This embodiment is red, cable quantity is three, in the use, three cables 3 are at first after passing the third through-hole of limiting plate, all cables 3 all pass compact structure's second through-hole 11, all correspond each cable 3 and install in a first through-hole 41, then place elastic seal block 4 on the limiting plate in fixed cover, will compress tightly the cover and install in fixed cover, and install annular pressing plate on fixed cover through screw 2, cavity structure can carry out radial extrusion to elastic seal block 4, and then make elastic seal block 4 take place to warp and tightly embrace the cable 3 that will pass.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable seal structure which characterized in that: comprises a compaction structure (1) and an elastic sealing block (4);

the elastic sealing block (4) is provided with at least one first through hole (41) capable of passing through a cable (3), the compression structure (1) is provided with second through holes (11), the number of the second through holes (11) capable of passing through the cable (3) is larger than or equal to that of the first through holes (41), and each first through hole (41) is arranged on the inner side of the second through hole (11);

the pressing structure (1) is provided with a cavity structure capable of radially pressing the first through hole (41), the elastic sealing block (4) is arranged in the cavity structure, and the second through hole (11) is communicated with the cavity structure.

2. A cable sealing structure according to claim 1, wherein: the pressing structure (1) comprises an annular pressing plate and a pressing sleeve, one end of the pressing sleeve is fixedly connected with the annular pressing plate, the second through hole (11) is formed in the annular pressing plate, the inner cavity of the pressing sleeve is of the cavity structure, and the second through hole (11) and the pressing sleeve are coaxial.

3. A cable sealing structure according to claim 2, wherein: cable seal structure still includes mounting (5), mounting (5) twist soon the structure including fixed cover, adapter sleeve, fixed cover one end pass through connection structure with compact structure (1) can be dismantled the connection, the fixed cover other end with the adapter sleeve rigid coupling, it is in to twist the structure setting soon fixed cover outer wall, the adapter sleeve outer wall is equipped with the external screw thread, be equipped with in the fixed cover can be right elastic seal piece (4) spacing limiting plate, be equipped with the third through-hole on the limiting plate, the quantity that the third through-hole can pass through cable (3) is the same with the quantity that the second through-hole can pass through cable (3), works as compress tightly the cover with fixed cover is connected fixedly back, elastic seal piece (4) support on the limiting plate.

4. A cable sealing structure according to claim 3, wherein: the connecting structure comprises a plurality of screws (2), the annular pressing plate is connected with the fixed sleeve through the plurality of screws (2), and the plurality of screws (2) are arranged on the circumference of the axis of the second through hole (11).

5. A cable sealing structure according to claim 3, wherein: the connecting structure comprises a thread structure, and the outer wall of the pressing sleeve is connected with the inner wall of the fixing sleeve through the thread structure.

6. A cable sealing structure according to claim 2, wherein: the outer wall of the elastic sealing block (4) is provided with a positioning end face, and the pressing sleeve abuts against the positioning end face.

7. A cable sealing structure according to any one of claims 2 to 6, wherein: the cavity structure is a truncated cone-shaped cavity.

8. A cable sealing structure according to claim 7, wherein: the included angle between the bevel edge of the cross section of the truncated cone-shaped cavity and the horizontal line is 3-6 degrees.

9. A cable sealing structure according to claim 7, wherein: the elastic sealing block (4) is a rubber column or a silica gel column, and the Shore hardness of the elastic sealing block (4) is 40-55A.

10. A cable sealing structure according to any one of claims 8 or 9, wherein: each first through hole (41) is provided with a notch edge capable of mounting a cable (3).