CN212250732U - Eccentric rotating sleeve locking structure of telescopic rod - Google Patents
Eccentric rotating sleeve locking structure of telescopic rod Download PDFInfo
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- CN212250732U CN212250732U CN202021026594.0U CN202021026594U CN212250732U CN 212250732 U CN212250732 U CN 212250732U CN 202021026594 U CN202021026594 U CN 202021026594U CN 212250732 U CN212250732 U CN 212250732U
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Abstract
The utility model discloses an eccentric commentaries on classics cover locking structure of telescopic link, including sleeve pipe, flexible pipe and locking device, locking device includes the endotheca of cover at the sleeve pipe socket end and cup joints just can rotate the commentaries on classics cover outside the endotheca, the endotheca is equipped with eccentric first hole, changes the cover and is equipped with eccentric second hole, and the first hole is the third hole with the cross section in second hole, and flexible pipe inserts the installation in the third hole, rotates and changes the cover, changes the bore of third hole, and the third hole presss from both sides tightly or the pine is from flexible pipe. Compared with the prior art, the utility model has the advantages that the inner sleeve of the locking device and the eccentric hole of the rotating sleeve clamp or loosen the telescopic pipe, the telescopic pipe locks or adjusts the telescopic position, and the operation is simple; the inner sleeve and the rotating sleeve have simple structures, and the production cost and the production difficulty are low.
Description
Technical Field
The utility model belongs to the technical field of the spirit level accessory, a mounting bracket of spirit level is related to, especially, relate to the eccentric rotating sleeve locking structure of telescopic link.
Background
The mounting bracket of current spirit level is mostly telescopic link structure setting, and portable and the length of adjustment mounting bracket of being convenient for, the connection between present telescopic link is generally through the rotatory locking of inflation screwed pipe or the eccentric handle of staple bolt, and governing speed is slow or part structure, and the production technology degree of difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem, provide an eccentric commentaries on classics cover locking structure of telescopic link that manufacturing cost and production degree of difficulty are low.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the eccentric rotating sleeve locking structure of the telescopic rod is characterized by comprising a sleeve, a telescopic pipe and a locking device, wherein the locking device comprises an inner sleeve sleeved at the socket end of the sleeve and a rotating sleeve sleeved outside the inner sleeve and capable of rotating, the inner sleeve is provided with an eccentric first hole, the rotating sleeve is provided with an eccentric second hole, the cross position of the first hole and the second hole is a third hole, the telescopic pipe is inserted into the third hole to be installed, the rotating sleeve is rotated, the caliber of the third hole is changed, and the third hole is clamped or loosened from the telescopic pipe.
Furthermore, the locking device comprises a limiting ring, and the limiting ring is sleeved on the sleeve in a penetrating manner and is fixedly connected with the rotating sleeve.
Furthermore, the inner sleeve is arranged between the limiting ring and the rotating sleeve, and the limiting ring limits the axial movement of the rotating sleeve relative to the inner sleeve.
Furthermore, the sleeve, the inner sleeve, the rotating sleeve and the limiting ring are coaxially arranged.
Furthermore, the inner sleeve is of a cylindrical pipe sleeve structure, a first end face is arranged at one end of the inner sleeve, the socket end of the sleeve is inserted into the first sleeve hole of the inner sleeve, and the socket end of the sleeve abuts against the first end face of the inner sleeve.
Furthermore, a first hole formed in the inner sleeve penetrates through the first end face of the inner sleeve, and the axis of the first hole is horizontally eccentric and parallel to the axis of the first sleeve hole of the inner sleeve.
Furthermore, the rotating sleeve is provided with a second sleeve hole, the inner sleeve is arranged in the second sleeve hole of the rotating sleeve, and a second end face is arranged at one end of the rotating sleeve.
Furthermore, a second hole formed in the rotary sleeve penetrates through the second end face, and the axis of the second hole is eccentric and parallel to the axis of the second sleeve hole of the rotary sleeve.
Furthermore, the inner sleeve is fixedly arranged at the socket end of the sleeve, and the first end face of the inner sleeve inserted into the rotating sleeve and the second end face of the rotating sleeve are arranged on the same side.
Furthermore, the aperture of the first hole of the inner sleeve is smaller than the inner diameter of the sleeve, and the outer diameter of the telescopic pipe is smaller than the apertures of the first hole of the inner sleeve and the second hole of the rotary sleeve.
Compared with the prior art, the utility model has the advantages that the inner sleeve of the locking device and the eccentric hole of the rotating sleeve clamp or loosen the telescopic pipe, the telescopic pipe locks or adjusts the telescopic position, the operation is simple and the locking speed is fast; the inner sleeve and the rotating sleeve have simple structures, and the production cost and the production difficulty are low.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of a lock device mounted in a penetrating manner;
FIG. 2 is an exploded view of the lock assembly installed in a sleeve;
FIG. 3 is a second exploded view of the lock assembly installed in a sleeve;
FIG. 4 is a cross-sectional view of the lock assembly installed through the bushing;
FIG. 5 is one of the cross-sectional views of the locking device;
FIG. 6 is a second cross-sectional view of the locking device;
FIG. 7 is a schematic view of the locking device in a disengaged state;
fig. 8 is a schematic view showing a state where the locking device is locked to be connected.
In the figure: 1. 1-1 of a sleeve, and a socket end; 2. a telescopic pipe; 3. the inner sleeve 3-1, a first sleeve hole 3-2, a first end face 3-3 and a first hole; 4. 4-1 of a rotating sleeve, 4-2 of a second sleeve hole, 4-3 of a second end face and a second hole; 5. a limiting ring 5-1 and an inner ring; 6. a third aperture.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative, exemplary only, and should not be construed as limiting the scope of the invention.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
The mounting bracket of current spirit level is mostly telescopic link structure setting, and portable and the length of adjustment mounting bracket of being convenient for, the connection between present telescopic link is generally through the rotatory locking of inflation screwed pipe or the eccentric handle of staple bolt, and part structure is complicated, and the production degree of difficulty is big and manufacturing cost is high.
This embodiment mainly explains the eccentric commentaries on classics cover locking structure of telescopic link that manufacturing cost and production degree of difficulty are low, specifically as follows:
as shown in fig. 1-4, the eccentric rotating sleeve locking structure of the telescopic rod comprises a sleeve 1, a telescopic tube 2 and a locking device, wherein the locking device is arranged at a socket end 1-1 at one end of the sleeve 1, the telescopic tube 2 is arranged in the sleeve 1, part of the telescopic tube 2 extends out from the socket end 1-1 of the sleeve 1, and the telescopic tube 2 can be locked in the sleeve 1 or adjusted along the telescopic position of the sleeve 1 through the locking device.
As shown in fig. 5-6, the locking device includes an inner sleeve 3, a rotating sleeve 4 and a limiting ring 5, the rotating sleeve 4 is provided with a second sleeve hole 4-1, the inner sleeve 3 is disposed in the second sleeve hole 4-1 of the rotating sleeve 4 from a sleeve opening formed at one end of the rotating sleeve 4, the limiting ring 5 is disposed at a sleeve opening of the rotating sleeve 4, the limiting ring 5 is fixedly connected with the rotating sleeve 4, a second end surface 4-2 is formed at the other end of the rotating sleeve 4, and the second end surface 4-2 cooperates with the limiting ring 5 to limit the axial movement of the inner sleeve 3 between the rotating sleeve 4 and the limiting ring 5.
The limiting ring 5 is in an annular ring structure, the limiting ring 5 is arranged on a sleeve opening of the rotating sleeve 4, and the sleeve 1 is sleeved in an inner ring 5-1 arranged on the limiting ring 5 in a penetrating manner.
Preferably, the sleeve 1, the inner sleeve 3, the rotating sleeve 4 and the limiting ring 5 are arranged coaxially and distributed.
The inner sleeve 3 is in a cylindrical tubular structure, one end of the inner sleeve 3 is provided with a sleeve opening, the other end of the inner sleeve 3 is provided with a second end surface 4-2, when the inner sleeve 3 is arranged in a second sleeve hole 4-1 of the rotary sleeve 4, the first end surface 3-2 of the inner sleeve 3 is arranged on the same side with the second end surface 4-2 of the rotary sleeve 4, the inner sleeve 3 and the second sleeve hole 4-1 of the rotary sleeve 4 are coaxially distributed, and the rotary sleeve 4 can rotate around the inner sleeve 3.
The first end surface 3-2 of the inner sleeve 3 is provided with an eccentric first hole 3-3, the first hole 3-3 axially penetrates through the first end surface 3-2 and is parallel to the axis of the first sleeve hole 3-1 arranged on the inner sleeve 3 in the same direction, but the axis of the first hole 3-3 is deviated from the axis of the first sleeve hole 3-1.
The second end surface 4-2 of the rotating sleeve 4 is provided with a second eccentric hole 4-3 which is distributed coaxially with the second sleeve hole 4-1 of the rotating sleeve 4 and penetrates through the second end surface 4-2, and the second hole 4-3 is deviated from but parallel to the axle center of the second sleeve hole 4-1 of the rotating sleeve 4.
The first hole 3-3 of the inner sleeve 3 and the second hole 4-3 of the rotary sleeve 4 are crossed to form a third hole 6, the extension tube 2 is inserted into the third hole 6 to be installed, the rotary sleeve 4 is rotated to change the caliber of the third hole 6, and the third hole 6 clamps or loosens the extension tube 2.
The locking device is arranged on the sleeve 1 and the extension tube 2 to be connected, the socket end 1-1 of the sleeve 1 is inserted into the first trepanning 3-1 from the trepanning of the inner sleeve 3, the socket end 1-1 of the sleeve 1 is abutted against the first end surface 3-2 of the inner sleeve 3 to be installed, the inner sleeve 3 and the sleeve 1 are coaxial and in interference fit and are fixedly connected in a mode of viscose glue and the like, the inner sleeve 3 and the sleeve 1 cannot rotate relatively, the aperture of the first hole 3-3 arranged on the first end surface 3-2 of the inner sleeve 3 is smaller than the inner diameter of the sleeve 1, preferably, the inner wall of the sleeve 1 is tangent to the first hole 3-3, or the first hole 3-3 is arranged in the inner wall of the sleeve.
One side of the inner sleeve 3 provided with a first end face 3-2 is inserted into a second sleeve hole 4-1 of the rotary sleeve 4 from a sleeve opening of the rotary sleeve 4, the limiting ring 5 is inserted from the other end of the sleeve 1 through an inner ring 5-1 and is limited to be installed with the inner sleeve 3 clamped with the sleeve 1, and the limiting ring 5 is matched with the second end face 4-2 of the sleeve 1 to limit the sleeve 1 and the limiting ring 5 to fall off from the sleeve 1.
The extension tube 2 passes through the spigot end 1-1 of the sleeve 1 and the first hole 3-3 of the inner sleeve 3 and penetrates out of the second hole 4-3 of the rotary sleeve 4 to be installed, so that the outer diameter of the extension tube 2 is smaller than the diameters of the second hole 4-3 of the rotary sleeve 4 and the first hole 3-3 of the inner sleeve 3 in order to facilitate the extension and retraction adjustment of the extension tube 2 in the sleeve 1.
As shown in fig. 7-8, the locking device locks or adjusts the position of the telescopic tube 2 to move, only the rotating sleeve 4 needs to be rotated because the inner sleeve 3 is fixedly connected with the sleeve 1, the size of the cross part of the second hole 4-3 of the rotating sleeve 4 and the first hole 3-3 of the inner sleeve 3 is changed, namely, the diameter of the third hole 6 is changed, and the second hole 4-3 of the rotating sleeve 4 and the first hole 3-3 of the inner sleeve 3 are crossed to clamp or loosen the telescopic tube 2 to install.
The rotating sleeve 4 is rotated, the second hole 4-3 of the rotating sleeve 4 and the first hole 3-3 of the inner sleeve 3 are crossed to clamp the telescopic pipe 2, and the telescopic pipe 2 cannot be adjusted at the telescopic position in the sleeve 1; the second hole 4-3 of the rotary sleeve 4 and the first hole 3-3 of the inner sleeve 3 are crossed to release the telescopic pipe 2, and the length of the telescopic pipe 2 extending into the sleeve 1 can be adjusted.
The rotating sleeve 4 rotates to change the caliber of the third hole 6, the second hole 4-3 of the rotating sleeve 4 and the first hole 3-3 of the inner sleeve 3 clamp or release the telescopic tube 2, preferably, when the second hole 4-3 of the rotating sleeve 4 and the first hole 3-3 of the inner sleeve 3 clamp or release the telescopic tube 2, the rotating sleeve 4 rotates forwards or backwards.
Preferably, in order to facilitate a user to hold the outer wall of the rotating sleeve 4 to rotate without slipping, the outer wall of the rotating sleeve 4 can be provided with a plurality of lines with convex or concave structures for preventing slipping, or the outer wall of the rotating sleeve 4 is provided with a frosted layer or a silica gel layer and the like for preventing slipping.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
It is right above the utility model provides an eccentric commentaries on classics cover locking structure of telescopic link has carried out the detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been explained, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The eccentric rotating sleeve locking structure of the telescopic rod is characterized by comprising a sleeve, a telescopic pipe and a locking device, wherein the locking device comprises an inner sleeve sleeved at the socket end of the sleeve and a rotating sleeve sleeved outside the inner sleeve and capable of rotating, the inner sleeve is provided with an eccentric first hole, the rotating sleeve is provided with an eccentric second hole, the intersection position of the first hole and the second hole is a third hole, the telescopic pipe is inserted into the third hole to be installed, the rotating sleeve is rotated to change the caliber of the third hole, and the third hole is clamped or loosened from the telescopic pipe.
2. The eccentric rotating sleeve locking structure of the telescopic rod according to claim 1, wherein the locking device comprises a limiting ring, and the limiting ring is sleeved on the sleeve and fixedly connected with the rotating sleeve.
3. The eccentric rotary sleeve locking structure of the telescopic rod according to claim 1 or 2, wherein the inner sleeve is disposed between the limiting ring and the rotary sleeve, and the limiting ring limits the axial movement of the rotary sleeve relative to the inner sleeve.
4. The eccentric sleeve locking structure of a telescopic rod according to claim 1 or 2, wherein the sleeve, the inner sleeve, the rotating sleeve and the limiting ring are coaxially installed.
5. The eccentric rotating sleeve locking structure of a telescopic rod according to claim 1, wherein the inner sleeve is a cylindrical tube sleeve structure, one end of the inner sleeve is provided with a first end surface, the socket end of the sleeve is inserted into the first sleeve hole of the inner sleeve, and the socket end of the sleeve abuts against the first end surface of the inner sleeve.
6. The eccentric sleeve locking structure of a telescopic rod according to claim 1 or 5, wherein the inner sleeve is provided with a first hole penetrating through the first end surface of the inner sleeve, and the axis of the first hole is flat eccentric and parallel to the axis of the first sleeve hole of the inner sleeve.
7. The eccentric rotating sleeve locking structure of an expansion link of claim 1, wherein the rotating sleeve is provided with a second sleeve hole, the inner sleeve is installed in the second sleeve hole of the rotating sleeve, and one end of the rotating sleeve is provided with a second end surface.
8. The eccentric rotating sleeve locking structure of the telescopic rod according to claim 1 or 7, wherein the rotating sleeve is provided with a second hole penetrating through the second end face, and the axis of the second hole is eccentric and parallel to the axis of the second sleeve hole of the rotating sleeve.
9. The eccentric runner locking structure of a telescopic rod according to claim 5 or 7, wherein the inner sleeve is fixedly installed at the socket end of the sleeve, and the first end surface of the inner sleeve inserted into the runner and the second end surface of the runner are located on the same side.
10. The eccentric sleeve locking structure of a telescopic rod according to claim 1, wherein the diameter of the first hole of the inner sleeve is smaller than the inner diameter of the sleeve, and the outer diameter of the telescopic tube is smaller than the diameters of the first hole of the inner sleeve and the second hole of the rotating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026594.0U CN212250732U (en) | 2020-06-06 | 2020-06-06 | Eccentric rotating sleeve locking structure of telescopic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026594.0U CN212250732U (en) | 2020-06-06 | 2020-06-06 | Eccentric rotating sleeve locking structure of telescopic rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250732U true CN212250732U (en) | 2020-12-29 |
Family
ID=73977506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021026594.0U Active CN212250732U (en) | 2020-06-06 | 2020-06-06 | Eccentric rotating sleeve locking structure of telescopic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250732U (en) |
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2020
- 2020-06-06 CN CN202021026594.0U patent/CN212250732U/en active Active
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