阅读说明：本技术 套管 (Sleeve pipe ) 是由 不公告发明人 于 2021-08-27 设计创作，主要内容包括：本发明属于安装件领域,尤其涉及一种套管,该套管包括外套管、弹性胀紧组件和内套管,外套管的侧壁设置有通孔；弹性胀紧组件设置于外套管上,弹性胀紧组件包括弹性支撑件和设置于弹性支撑件上的胀紧件,胀紧件与通孔对应并经通孔部分伸入外套管的内部,弹性胀紧组件能够随外套管一同插入外部孔内；内套管能够插入外套管的内部,且内套管能够推动胀紧件,以使胀紧件克服弹性支撑件的弹力向外运动至抵接于外部孔的内壁,以将外套管固定在外部孔内。使用该套管时只需在墙壁上钻取供外套管和弹性胀紧组件能够插入的外部孔即可,缩短施工量和减小对墙壁内部结构的破坏,套管固定简单方便,而且在安装失效、撤除或检修时,能够轻易将套管拆卸。(The invention belongs to the field of mounting pieces, and particularly relates to a sleeve, which comprises an outer sleeve, an elastic expansion assembly and an inner sleeve, wherein the side wall of the outer sleeve is provided with a through hole; the elastic expansion assembly is arranged on the outer sleeve and comprises an elastic supporting piece and an expansion piece arranged on the elastic supporting piece, the expansion piece corresponds to the through hole and extends into the inner part of the outer sleeve through the through hole part, and the elastic expansion assembly can be inserted into the outer hole along with the outer sleeve; the interior sleeve pipe can insert the inside of outer tube, and interior sleeve pipe can promote the piece that expands to the piece that expands overcomes elastic support's elasticity and outwards moves to the butt in the inner wall in outside hole, fixes the outer tube in the outside downthehole. When the sleeve is used, only the external hole which can be inserted by the outer sleeve and the elastic expansion assembly is drilled on the wall, the construction amount is shortened, the damage to the internal structure of the wall is reduced, the sleeve is fixed simply and conveniently, and the sleeve can be easily detached when the sleeve is mounted to be invalid and removed or maintained.)

1. A bushing, comprising:

the side wall of the outer sleeve is provided with a through hole;

the elastic expansion assembly is arranged on the outer sleeve and comprises an elastic supporting piece and an expansion piece arranged on the elastic supporting piece, the expansion piece corresponds to the through hole and partially extends into the inner part of the outer sleeve through the through hole, and the elastic expansion assembly can be inserted into an outer hole along with the outer sleeve; and

the inner sleeve is detachably inserted into the outer sleeve, and under the condition that the inner sleeve is inserted into the outer sleeve, the inner sleeve can push the expansion piece, so that the expansion piece overcomes the elastic force of the elastic support piece to move outwards to abut against the inner wall of the outer hole, and the outer sleeve is fixed in the outer hole.

2. The cannula according to claim 1, wherein the elastic expansion assembly is sleeved on the outer cannula.

3. The casing pipe according to claim 1 or 2, wherein the number of the through holes is plural, the plural through holes are uniformly distributed along the circumferential direction of the outer casing pipe, the number of the expanding pieces is the same as that of the through holes, and the plural expanding pieces correspond to the plural through holes one to one.

4. The casing according to claim 2, wherein the elastic supporting member comprises a sleeve, the sleeve is provided with a mounting hole corresponding to the through hole, the sleeve is provided with bearing portions at two ends of the mounting hole, the bearing portions extend into the outer casing through the through hole, the expansion member comprises a clamping block, the clamping block is installed in the mounting hole and supported on the bearing portions, and a limiting portion is arranged in the mounting hole and used for preventing the clamping block from being pulled out of the mounting hole.

5. The sleeve according to claim 4, wherein the through hole is a strip-shaped hole extending along the axial direction of the outer sleeve, the clamping block is a strip-shaped block, a V-shaped groove is formed on one side of the strip-shaped block, which faces away from the outer sleeve, and the limiting portion is used for stopping the groove bottom of the V-shaped groove.

6. A sleeve according to claim 4 or 5, characterized in that said elastic support is a sheet metal part, machined from sheet metal with a thickness of less than 0.5 mm.

7. The cannula according to claim 1, wherein the through-hole has a size larger than a size of the expander.

8. The casing of claim 1, wherein the elastic expansion assembly is disposed in the through hole, a gap is disposed between the expansion member and the through hole, the elastic support member is disposed in the gap, and one end of the elastic support member is connected to the expansion member and the other end is connected to an inner wall of the outer casing.

9. The cannula of claim 1, wherein the outer cannula and the inner cannula each have a forward end and a rearward end, the forward ends of the outer cannula and the inner cannula each being tapered.

10. The sleeve of claim 9, wherein the rear end of the outer sleeve is provided with an internal thread and the rear end of the inner sleeve is provided with an external thread corresponding to the internal thread.

Technical Field

The invention relates to the technical field of mounting pieces, in particular to a sleeve.

Background

In engineering projects, pipelines and equipment are commonly arranged through thick walls, such as concrete bins and opening construction of thick-wall bins. In the construction mode of wearing the wall usually, in order to be convenient for the installation fixed sleeve pipe that is used for wearing to establish pipeline and equipment construction, need suitably increase drilling to it is sealed with the solidification to pack the matrix between sleeve pipe and pore wall, this kind of mode not only causes the face of digging of wall too big, and construction volume grow and time are longer, destroys inside main bearing steelframe easily, moreover when the installation became invalid, was removed or was overhauld, it is comparatively difficult to dismantle the sleeve pipe.

Disclosure of Invention

The embodiment of the invention provides a casing, which is used for solving the problems that in the existing wall penetrating construction mode, the installation of the casing not only causes the drilling and excavating surface of a wall to be overlarge, the construction amount is increased and the construction time is longer, the internal main bearing steel frame is easy to damage, but also the casing is difficult to disassemble when the installation is invalid, removed or maintained.

According to an embodiment of the invention, the bushing comprises:

the side wall of the outer sleeve is provided with a through hole;

the elastic expansion assembly is arranged on the outer sleeve and comprises an elastic supporting piece and an expansion piece arranged on the elastic supporting piece, the expansion piece corresponds to the through hole and partially extends into the inner part of the outer sleeve through the through hole, and the elastic expansion assembly can be inserted into the outer hole along with the outer sleeve; and

the inner sleeve pipe is detachably inserted into the outer sleeve pipe, and under the condition that the inner sleeve pipe is inserted into the outer sleeve pipe, the inner sleeve pipe can push the expansion piece, so that the expansion piece overcomes the elastic force of the elastic supporting piece to move outwards to abut against the inner wall of the external hole, and the outer sleeve pipe is fixed in the external hole.

Optionally, the elastic expansion assembly is sleeved on the outer sleeve.

Optionally, the through-hole has a plurality ofly, and a plurality of through-holes are along the circumference evenly distributed of outer tube, and the piece is the same with the quantity of through-hole to expand, and a plurality of pieces and a plurality of through-hole one-to-one expand.

Optionally, the elastic support member includes a sleeve, a mounting hole corresponding to the through hole is formed in the sleeve, bearing portions extending into the inner portion of the outer sleeve through the through hole are formed at two ends of the mounting hole of the sleeve, the expansion member includes a clamping block, the clamping block is installed in the mounting hole and supported on the bearing portions, a limiting portion is formed in the mounting hole, and the limiting portion is used for preventing the clamping block from being disengaged from the mounting hole.

Optionally, the through-hole is the bar hole along the axial extension of outer tube, and the fixture block is the bar piece, and one side that the bar piece deviates from the outer tube is provided with V type groove, and spacing portion is used for the tank bottom in backstop V type groove.

Optionally, the elastic supporting member is a sheet metal part and is made of a metal plate with a thickness of less than 0.5 mm.

Optionally, the size of the through hole is larger than the size of the expander.

Optionally, the elastic expansion assembly is arranged in the through hole, a gap is formed between the expansion piece and the through hole, the elastic support piece is located in the gap, one end of the elastic support piece is connected with the expansion piece, and the other end of the elastic support piece is connected with the inner wall of the outer sleeve.

Optionally, the outer and inner sleeves each have a forward end and a rearward end, the forward ends of the outer and inner sleeves each being tapered.

Optionally, the rear end of the outer sleeve is provided with an internal thread, and the rear end of the inner sleeve is provided with an external thread corresponding to the internal thread.

The application provides a sheathed tube beneficial effect lies in: compared with the prior art, this application sleeve pipe is through setting up the elasticity tight subassembly that expands on the outer tube, after the outer tube together with the outside hole on the wall is together inserted to the tight subassembly that expands of elasticity, utilize interior sleeve pipe to insert in the outer tube to expand the thrust that tightly applies and make the inside wall of the outside outward movement of tight piece to butt in the outside hole that expands, thereby realize sheathed tube fixed, after taking out interior sleeve pipe, interior sleeve pipe disappears to the thrust that tightly applies of expanding, the tight piece that expands resets under elastic support's elastic action, the tight piece that expands breaks away from with the inner wall in outside hole, can expand tight subassembly with outer tube and elasticity and together take out in the outside hole. When the sleeve is used, only the hole which can be inserted by the outer sleeve and the elastic expansion assembly is drilled on the wall, the construction amount is shortened, the damage to the internal structure of the wall is reduced, the sleeve is fixed simply and conveniently, and the sleeve can be easily detached when the sleeve is mounted to be invalid and removed or maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of the overall construction of a bushing according to an embodiment of the present invention;

FIG. 2 is an exploded view of a casing shown in accordance with an embodiment of the present invention;

FIG. 3 is a disassembled view of the elastic expansion assembly of the casing shown in one embodiment of the present invention;

FIG. 4 is a schematic view of the process engineering for manufacturing the elastic support of the sleeve according to one embodiment of the present invention;

FIG. 5 is a cross-sectional view of the outer sleeve and the elastic expansion assembly of the bushing shown installed in the outer bore according to one embodiment of the present invention;

FIG. 6 is an enlarged view of the structure at A of FIG. 5;

FIG. 7 is a cross-sectional view of the base of FIG. 5 with the inner sleeve inserted into the outer sleeve and the expander pressed outwardly against the inner wall of the outer bore;

fig. 8 is an enlarged view of the structure at B of fig. 7.

Description of the main element symbols:

100. an outer sleeve; 101. a through hole; 102. an internal thread;

200. an elastic expansion assembly;

210. an elastic support member; 211. a sleeve; 2111. mounting holes; 212. a bearing part; 213. a limiting part;

220. expanding the fastening piece; 221. a V-shaped groove;

300. an inner sleeve; 301. and (4) external threads.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the 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 should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described in the background art, in a general wall-penetrating construction method, in order to facilitate installation and fixation of a casing for pipe line and equipment construction, a drilled hole needs to be enlarged appropriately to fill a base material between the casing and a hole wall and to cure and seal the drilled hole, which not only causes an excessively large drilling surface of the wall, an increased construction amount and a long time, and easily damages an internal main bearing steel frame, but also makes it difficult to disassemble the casing when the installation is failed, removed or overhauled.

To solve the above problems, embodiments of the present invention provide a casing for installation in an external hole in a wall or other object to provide a passage for laying a pipeline and equipment.

In an embodiment of the present invention, as shown in fig. 1-2 and 5-8, the sleeve includes an outer sleeve 100, an elastic expansion assembly 200, and an inner sleeve 300.

The side wall of the outer sleeve 100 is provided with a through hole 101.

The elastic expansion assembly 200 is disposed on the outer sleeve 100, the elastic expansion assembly 200 includes an elastic support 210 and an expansion member 220 disposed on the elastic support 210, the expansion member 220 corresponds to the through hole 101 and partially extends into the outer sleeve 100 through the through hole 101, and the elastic expansion assembly 200 can be inserted into the outer hole along with the outer sleeve 100.

The inner sleeve 300 is detachably inserted inside the outer sleeve 100, and when the inner sleeve 300 is inserted inside the outer sleeve 100, the inner sleeve 300 can push the expanding piece 220, so that the expanding piece 220 overcomes the elastic force of the elastic support 210 to move outwards to abut against the inner wall of the outer hole, so as to fix the outer sleeve 100 inside the outer hole.

It will be appreciated that the size of the through bore 101 is larger than the size of the expander 220 to ensure that the expander 220 can move normally within the through bore 101. The expander member 220 moves outward, i.e. the expander member 220 extends out of the through hole 101.

It should be noted that, the elastic supporting member 210 has elastic deformation, and may be made of an organic elastic material (such as rubber) or an inorganic elastic material (such as spring steel or memory alloy), and the elastic supporting member 210 is used to elastically set the expansion block in the through hole 101 of the outer sleeve 100, so that when the inner sleeve 300 is inserted into the outer sleeve 100 and pushes the expansion block to abut against, deformation can occur to make the expansion block move outward to the inner wall of the external hole clamped on the wall to play a role in fixing, and after the inner sleeve 300 is taken out from the outer sleeve 100, the elastic supporting member 210 recovers to its original state, so as to drive the expansion block to disengage from the inner wall of the external hole, thereby facilitating disassembly.

When in use, the outer sleeve 100 and the elastic expansion assembly 200 are inserted into an external hole of an object to be laid with a pipeline or equipment. The elastic support member 210 and the tightening member 220 are maintained in a natural state at this time, and the tightening member 220 is not in contact with the inner wall of the outer hole, as shown in fig. 5 to 6.

The inner sleeve 300 is inserted into the outer sleeve 100, the outer wall of the inner sleeve 300 abuts against the expansion piece 220, the expansion piece 220 and the elastic support 210 are pushed to expand outwards along with the continuous insertion of the inner sleeve 300, the expansion piece 220 is in contact with the inner wall of the outer hole to be pressed, and the sleeve is fixed in the outer hole, as shown in fig. 7-8.

In the embodiment of the present invention, the elastic expansion assembly 200 is disposed on the outer sleeve 100, after the outer sleeve 100 and the elastic expansion assembly 200 are inserted into the external hole on the wall, the expansion piece 220 is moved outward to abut against the inner wall of the external hole by the thrust applied to the expansion piece 220 when the inner sleeve 300 is inserted into the outer sleeve 100, so as to fix the sleeve in the external hole, after the inner sleeve 300 is taken out, the acting force applied to the expansion piece 220 by the inner sleeve 300 disappears, the expansion piece 220 is reset under the elastic action of the elastic support 210, the expansion piece 220 is separated from the inner wall of the external hole, and the outer sleeve 100 and the elastic expansion assembly 200 can be taken out from the external hole together.

When the sleeve is used, only the external hole which can be inserted by the outer sleeve 100 and the elastic expansion assembly 200 is drilled on the wall, the construction amount is shortened, the damage to the internal structure of the wall is reduced, the sleeve is fixed simply and conveniently, and the sleeve can be easily detached when the installation is failed, removed or maintained.

In one embodiment, as shown in FIGS. 1-2 and 5-8, the elastic expansion assembly 200 is disposed over the outer sleeve 100.

The design is such that the outer sleeve 100 and the elastic expansion assembly 200 can be manufactured separately and then assembled together during the manufacturing process.

In some embodiments, as shown in fig. 1, 5 and 7, there are a plurality of through holes 101, the plurality of through holes 101 are uniformly distributed along the circumferential direction of the outer sleeve 100, the number of the expansion members 220 is the same as that of the through holes 101, and the plurality of expansion members 220 correspond to the plurality of through holes 101 one to one.

It can be understood that one through hole 101 and one expansion piece 220 form a group of expansion fixing points, and a plurality of through holes 101 and expansion pieces 220 are arranged, so that the number of the expansion fixing points is increased, and the stability of the sleeve in the outer hole is further improved.

Further, the plurality of through holes 101 are uniformly distributed along the circumferential direction of the outer sleeve 100, so that the fixed sleeve is uniformly stressed and is not easy to displace and rotate in the outer hole.

In a specific embodiment, as shown in fig. 1 and fig. 5 to 8, the elastic supporting member 210 includes a sleeve 211, the sleeve 211 is sleeved on a side wall of the outer sleeve 100, a mounting hole 2111 corresponding to the through hole 101 is provided on the sleeve 211, a bearing portion 212 extending into the outer sleeve 100 through the through hole 101 is provided at two ends of the mounting hole 2111 on the sleeve 211, the expansion member 220 includes a fixture block, the fixture block is installed in the mounting hole 2111 and supported on the bearing portion 212, a limiting portion 213 is provided in the mounting hole 2111, and the limiting portion 213 is used for preventing the fixture block from coming out of the mounting hole 2111.

Specifically, as shown in fig. 2-3, the supporting portion 212 may be an L-shaped bracket fixed inside the sleeve 211, two ends of the latch are supported by the two L-shaped brackets to support the latch firmly, and at the same time, in order to prevent the latch from coming out of the mounting hole 2111, a limiting portion 213 is further disposed in the mounting hole 2111, the mounting hole 2111 may be designed to be L-shaped during production, i.e., one mounting hole 2111 has two openings, and the portion that is not connected between the two openings serves as the limiting portion 213.

In a more specific embodiment, as shown in fig. 1-3 and fig. 5-8, the through hole 101 is a strip-shaped hole extending along the axial direction of the outer sleeve 100, the clamping block is a strip-shaped block, a V-shaped groove 221 is formed on a side of the strip-shaped block facing away from the outer sleeve 100, and the limiting portion 213 is used for stopping the groove bottom of the V-shaped groove 221.

Through deviating from one side of outer tube 100 at the bar piece (promptly after outer tube 100 and elasticity bloated tight subassembly 200 together pack into the outside hole, fixture block towards one side of pore wall) set up V type groove 221, V type groove 221 makes one side of fixture block towards the pore wall of outside hole form the tooth, when inner tube 300 inserted in outer tube 100 and promoted the fixture block and the pore wall butt of outside hole, the tooth bites into the pore wall, plays the fixed action better.

In some specific embodiments, as shown in fig. 1-3 and 5-8, the resilient support 210 is a sheet metal part machined from a sheet metal material having a thickness of less than 0.5 mm.

Sheet metal is a comprehensive cold working process for sheet metal (generally below 6 mm), including shearing, punching/cutting/compounding, folding, welding, riveting, splicing, forming (such as automobile bodies), and the like. The remarkable characteristic is that the thickness of the same part is consistent.

The sheet metal part has the characteristics of light weight, high strength, low cost, good large-scale mass production performance and the like.

Utilize the sheet metal component to produce easily as elastic support piece 210 and make, therefore, the carrier wave is low in cost, meanwhile, the sheet metal component thickness that is made by the sheet metal processing that thickness is less than 0.5mm is thinner, the cover is established and is hardly increased the thickness of outer tube 100 here on outer tube 100, therefore, also need not to set up the great outside hole of size when drilling on the wall, as long as guarantee outer tube 100 and elasticity expand tight subassembly 200 can insert can, shorten the construction volume and to reducing the destruction of wall inner structure, moreover, after later stage construction is accomplished, only need few filler to backfill the hole and seal.

Specifically, as shown in fig. 4, when manufacturing the elastic supporting member 210, a strip-shaped thin plate is used, a slit is cut by laser according to the figure, and after a supporting portion 212 is formed by preliminary shaping, the elastic supporting member is wound on the outer sleeve 100 (not shown) in a ring shape.

In another embodiment, the elastic expansion assembly 200 is disposed in the through hole 101, a gap is formed between the expansion member 220 and the through hole 101, the elastic support member 210 is disposed in the gap, and one end of the elastic support member 210 is connected to the expansion member 220 and the other end is connected to the inner wall of the outer sleeve 100.

Particularly, tight piece 220 that expands can be for the tight piece that expands, and its one side outside towards through-hole 101 is provided with the latch to after the tight piece that expands and the inner wall butt in outside hole, the tight piece that expands can bite into the pore wall through the latch, improve fixed effect. The resilient support 210 may be a spring or leaf spring that serves to connect the expansion block and disengage the expansion block from the hole wall when the inner sleeve 300 is removed from the outer sleeve 100.

The elastic expansion assembly 200 and the outer sleeve 100 may be assembled separately, or the expansion member 220, the elastic support member 210 and the outer sleeve 100 may be connected together by welding.

In some embodiments, as shown in fig. 1-2 and 5-8, the outer sleeve 100 and the inner sleeve 300 each have a forward end and a rearward end, and the forward ends of the outer sleeve 100 and the inner sleeve 300 are tapered.

It will be appreciated that the front end is the end which is inserted into the outer bore in use, by designing the front end of the outer sleeve 100 to be tapered, it is convenient for the outer sleeve 100 to be inserted into the outer bore during use, and by designing the front end of the inner sleeve 300 to be tapered, it is convenient for the inner sleeve 300 to be inserted into the outer sleeve 100 and the outer wall of the inner sleeve 300 to abut against the expansion member 220 and push it outwards.

Further, the rear end of the outer sleeve 100 is provided with an internal thread 102, and the rear end of the inner sleeve 300 is provided with an external thread 301 corresponding to the internal thread 102.

The inner sleeve 300 and the outer sleeve 100 are fixed by a screw by providing an internal thread 102 and an external thread 301 at the rear ends of the outer sleeve 100 and the inner sleeve 300, respectively. Of course, in other embodiments, the inner and outer sleeves 100 may be connected by a snap-fit connection, an interference connection, or other conventional means.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.