CN218294089U

CN218294089U - Telescopic fixing and adjusting device for steel pipes

Info

Publication number: CN218294089U
Application number: CN202221760752.4U
Authority: CN
Inventors: 于增杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-01-13
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a scalable fixed adjusting device of steel pipe, it includes the lock handle, first mounting disc, the cam, the second mounting disc, catch and lock dish, the lock handle is connected with the one end of first mounting disc, the one end that the lock handle was kept away from to first mounting disc is connected with the cam, the one end that first mounting disc was kept away from to the cam is connected with the second mounting disc, the catch cover is established on the cam, the radial outside elastic deformation along the catch of cam at least part with oppression catch of cam relatively catch activity, the one end that the cam was kept away from to lock dish and second mounting disc is connected, the edge profile of lock dish roughly is circularly, the edge protrusion of lock dish is in the periphery wall of first mounting disc and second mounting disc. The utility model discloses can make between two root canals body fixed more firm, have better fixed effect, the performance is reliable and more stable moreover.

Description

Telescopic fixing and adjusting device for steel pipe

Technical Field

The utility model relates to a locking device technical field, concretely relates to scalable fixed adjusting device of steel pipe.

Background

The telescopic rod has wide application in practical life and has the structure that one steel pipe is positioned in the other steel pipe to stretch. When the existing telescopic fixing and adjusting device for the steel pipes is connected with two pipe bodies, locking plates on the telescopic fixing and adjusting device are easy to deform, so that the fixing effect between the two steel pipes is reduced, a locking ring cannot be independently replaced after being damaged, the whole fixing and adjusting device must be replaced, and the waste of resources and the improvement of use cost are caused. Furthermore, when the deformed position of the locking ring is above the locking tab, the locking tab will not cut effectively on the inner wall of the steel tube, in which case the fixation between the two steel tubes is not achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve the not enough of prior art, provide a scalable fixed adjusting device of steel pipe, it does not receive the influence of catch deformation position, no matter where the deformation position of catch, can both be firm fixed between two steel pipes.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a steel pipe telescopic fixing adjusting device comprises a lock handle, a first mounting disc, a cam, a second mounting disc, a locking ring and a lock disc, wherein the lock handle is connected with one end of the first mounting disc, one end, far away from the lock handle, of the first mounting disc is connected with the cam, one end, far away from the first mounting disc, of the cam is connected with the second mounting disc, the locking ring is sleeved on the cam, the cam can move relative to the locking ring to press at least part of the locking ring to elastically deform outwards in the radial direction of the locking ring, the lock disc is connected with one end, far away from the cam, of the second mounting disc, the edge profile of the lock disc is approximately circular, and the edge of the lock disc protrudes out of the peripheral walls of the first mounting disc and the second mounting disc.

In some embodiments, the lock collar is removably coupled to the second mounting plate.

In some embodiments, a first through hole is formed in the geometric center of the end face of the lock disc, a first fastening piece is arranged in the first through hole, one end of the first fastening piece is connected with the second mounting disc, and the first fastening piece presses the lock disc to be attached to one end, away from the cam, of the second mounting disc.

In some embodiments, a plurality of second through holes are formed in the lock disc, the second through holes are distributed in an annular array around the geometric center of the lock disc, second fastening pieces are arranged in the second through holes, one ends of the second fastening pieces are connected with the second mounting disc, and the second fastening pieces press the lock disc to be attached to one end, away from the cam, of the second mounting disc.

In some embodiments, the locking ring includes a ring body portion, a non-slip portion, and an inner protrusion; the ring body part is provided with a cavity for the cam to pass through; the anti-slip part is arranged on the outer peripheral wall of the ring body part and protrudes out of the outer peripheral wall of the first mounting disc and the outer peripheral wall of the second mounting disc; the inner protrusion is disposed within the cavity and coupled to the ring body, and the cam is rotatable relative to the lock ring and presses the inner protrusion outwardly to elastically deform at least a portion of the lock ring outwardly in a radial direction of the lock ring.

In some embodiments, the ring body portion is provided with a notch so that the ring body portion has a first end and a second end, and a central angle corresponding to the notch is smaller than 180 degrees.

In some embodiments, at least one of the first end and the second end is provided with an internal protrusion.

In some embodiments, a peripheral wall of at least one of the first end and the second end is provided with a non-slip portion.

In some embodiments, the anti-slip portion comprises a plurality of anti-slip ribs parallel to the axis of the locking ring.

In some embodiments, the lock handle, the first mounting plate, and the second mounting plate are all cylinders, and the lock handle, the first mounting plate, and the second mounting plate are coaxial.

The utility model provides a scalable fixed adjusting device of steel pipe, no matter which position is in at the deformation position of its catch, the lock dish all the time has some edge can cut on the inner wall of second body to ensured that first body can firmly be fixed with the second body. Therefore, compared with the prior art, the utility model discloses can make between two bodys fixed more firm, have better fixed effect, the performance is more reliable and more stable moreover.

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 these drawings without creative efforts.

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

fig. 3 is a left side view of an embodiment of the present invention;

fig. 4 is a bottom view of an embodiment of the invention;

FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 7 is a perspective view of a locking ring in an embodiment of the present invention;

fig. 8 is a structural view of a lock disk in an embodiment of the present invention;

fig. 9 is a schematic view of an embodiment of the invention in use.

The reference numerals are illustrated below:

in the figure: 1. a lock handle; 2. a first mounting plate; 3. a locking ring; 31. a ring body portion; 311. a first end; 312. a second end; 313. a cavity; 314. cutting; 32. an inner convex portion; 33. an anti-slip portion; 331. anti-slip edges; 4. a second mounting plate; 5. a lock disc; 51. a first through hole; 52. a second through hole; 6. a cam; 7. a first pipe body; 8. a second tube body; 9a, a first fastener; 9b, second fasteners.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-9, the utility model provides a scalable fixed adjusting device of steel pipe, it includes lock handle 1, first mounting disc 2, cam 6, second mounting disc 4 and catch 3, lock handle 1 is connected with the upper end of first mounting disc 2, the one end (the lower extreme of first mounting disc 2 promptly) that lock handle 1 was kept away from to first mounting disc 2 is connected with cam 6, the one end (the lower extreme of cam 6 promptly) that first mounting disc 2 was kept away from to cam 6 is connected with second mounting disc 4, catch 3 cover is established on cam 6, cam 6 can be relative catch 3 activity in order to oppress catch 3 at least part along catch 3's radial outside elastic deformation, the one end that cam 6 was kept away from to lock disc 5 and second mounting disc 4 is connected, the edge profile of lock disc 5 is roughly circular, the edge protrusion of lock disc 5 is in the periphery wall of first mounting disc 2 and second mounting disc 4.

In use, when the cam 6 presses the locking ring 3, a part of the locking ring 3 is tightly pressed on the inner wall of the second pipe body 8, so that the friction force between the locking ring 3 and the second pipe body 8 is increased, and the first pipe body 7 and the second pipe body 8 are fixed; under the action of extrusion, part of the edge of the lock disc 5 is pressed on the inner wall of the second pipe body 8, and the lock disc 5 and the second pipe body 8 also have larger friction force, so that the fixing effect is further improved; wherever the deformation of the locking collar 3 is, the locking collar 5 will always have a portion of its edge that can be cut on the inner wall of the second tubular body 8, thus ensuring that the first tubular body 7 can be securely fixed to the second tubular body 8. When the cam 6 rotates to a position where it does not press the inner protrusion 32, the friction between the locking ring 3 and the second tubular body 8 is small, and the friction between the end of the locking disc 5 and the second tubular body 8 is also small, so that the first tubular body 7 and the second tubular body 8 can slide relatively, and the first tubular body 7 and the second tubular body 8 can extend and retract.

In some embodiments, the lock collar 5 is removably attached to the second mounting plate 4. The utility model provides a lock dish 5 and/or catch 3 can demolish and change when impaired, consequently the utility model discloses the vulnerable part that well used all can be changed, is favorable to reducing the maintenance cost.

In some embodiments, a first through hole 51 is formed in the geometric center of the end face of the lock disc 5, a first fastening member 9a is arranged in the first through hole 51, one end of the first fastening member 9a is connected with the second mounting disc 4, and the lock disc is pressed by the first fastening member 9a and attached to one end of the second mounting disc 4, which is far away from the cam 6.

As shown in fig. 8, the lock plate 5 has a circular disk shape, the first through hole 51 is a circular hole, and the first through hole 51 is concentric with the lock plate 5. As shown in fig. 2 and fig. 5, the first fastening member 9a may be a combination of a stud and a nut, and at this time, a threaded hole is provided on the lower end surface of the second mounting plate 4, and the upper end of the first fastening member 9a extends into the threaded hole of the second mounting plate 4, so as to achieve the threaded connection between the first fastening member 9a and the second mounting plate 4. The nut with the flange face is preferably used as the nut, and the nut can ensure a large matching face between the nut and the second mounting disc 4, so that the locking disc 5 can be firmly fixed with the second mounting disc 4, and the mounting process is simplified.

It is well known to those skilled in the art that the first fastening member 9a of the present invention may be a bolt in addition to the illustrated example. When the first fastening member 9a adopts the above stud and nut combination, the stud may also be fixed in the second mounting plate 4 in an injection molding manner, and at this time, the second mounting plate 4 is made of a plastic material.

In some embodiments, the lock disk 5 is provided with a plurality of second through holes 52, the plurality of second through holes 52 are distributed in an annular array around the geometric center of the lock disk 5, the second through holes 52 are provided with second fastening members 9b, one end of each second fastening member 9b is connected with the second mounting disk 4, and the second fastening members 9b press the lock disk 5 to be attached to one end of the second mounting disk 4 away from the cam 6.

As shown in fig. 4 and fig. 8, three circular second through holes 52 are opened in the lock disc 5, the three second through holes 52 are located at the periphery of the first through hole 51 and penetrate through two end surfaces of the lock disc 5, and the center of each second through hole 52 is located on a circle with the center of the lock disc 5 as the center. Each second through hole 52 is provided with a second fastening member 9b, the second fastening member 9b may be a screw, a corresponding position on the second mounting plate 4 is provided with a threaded hole matched with the second fastening member 9b, one end of the second fastening member 9b extends into the corresponding threaded hole so as to realize threaded connection between the second fastening member 9b and the second mounting plate 4, and the locking plate 5 is clamped between the second mounting plate 4 and the head of the screw.

The second of setting is firm firmware 9b can guarantee that the edge of lock dish 5 closely laminates with second mounting disc 4 to appear the clearance between lock dish 5 and the second mounting disc 4 when avoiding lock dish 5 and second mounting disc 4 to extrude each other, be favorable to preventing that lock dish 5 warp impaired. The utility model discloses in, the quantity of second fastener 9b is not limited to three, also can be two or more, and the specific quantity of second fastener 9b can be decided according to the size of lock dish 5, should adopt the second fastener 9b of more quantity when the size of lock dish 5 is great to guarantee that the edge of lock dish 5 can be stable fixed with second mounting disc 4.

In some embodiments, the locking ring 3 includes a ring body 31, an anti-slip portion 33, and an inner boss 32. As shown in fig. 7, the ring body 31 is provided with a cavity 313 for the cam 6 to pass through, and the cavity 313 is located at the center of the ring body 31 and passes through the upper and lower end faces of the ring body 31. The anti-slip portion 33 is provided on the outer peripheral wall of the ring body portion 31, and the anti-slip portion 33 projects from the outer peripheral wall of the first mounting plate 2 and the outer peripheral wall of the second mounting plate 4. The inner protrusion 32 is provided in the cavity 313 and connected to the ring body 31, and the cam 6 is rotatable relative to the lock ring 3 and presses the inner protrusion 32 outward to elastically deform at least a part of the lock ring 3 outward in the radial direction of the lock ring 3.

The inner protrusion 32 may be made of a non-rigid material (e.g., rubber) that is deformable, and the inner protrusion 32 is fixed to the ring body 31 by adhesion. In use, the anti-slip portion 33 is always in contact with the inner wall of the second tubular body 8, and the anti-slip portion 33 is arranged to prevent the locking ring 3 from rotating relative to the second tubular body 8 during the rotation of the cam 6, thereby ensuring that the cam 6 can press against the inner protrusion 32. When the cam 6 rotates relative to the lock ring 3 to a position contacting with the inner protrusion 32, the cam 6 presses the inner protrusion 32 to increase the pressure between the anti-slip part 33 and the second pipe 8, and further increase the friction between the anti-slip part 33 and the second pipe 8, thereby fixing the first pipe 7 and the second pipe 8.

In some embodiments, the ring body 31 is provided with a notch 314 so that the ring body 31 has a first end 311 and a second end 312, the notch 314 corresponds to a central angle of less than 180 degrees to ensure that the lock ring 3 can be clamped on the cam 6, and the installation process of the lock ring 3 is simple and quick due to the notch 314. At least one of the first end 311 and the second end 312 is provided with an inner protrusion 32, and the outer peripheral wall of at least one of the first end 311 and the second end 312 is provided with a non-slip part 33. The anti-slip portion 33 includes a plurality of anti-slip ribs 331 parallel to the axis of the locking ring 3, and when the first pipe body 7 rotates, the anti-slip ribs 331 are always perpendicular to the rotation direction of the first pipe body 7, thereby having better anti-slip performance.

As shown in fig. 7, in a preferred embodiment, both the first end 311 and the second end 312 are provided with an inner protrusion 32 and a non-slip portion 33. In this case, when the cam 6 presses the inner protrusion 32, the anti-slip portion 33 of the locking ring 3 will contact the inner wall of the second tubular body 8, ensuring a greater friction force between the locking ring 3 and the second tubular body 8, further achieving stable fixation between the first tubular body 7 and the second tubular body 8.

In some embodiments, lock handle 1, first mounting plate 2, and second mounting plate 4 are all cylinders, and lock handle 1, first mounting plate 2, and second mounting plate 4 are coaxial. Referring to fig. 5, the lock handle 1, the first mounting plate 2, the cam 6 and the second mounting plate 4 are fixedly connected from top to bottom in sequence, the rotation axis of the cam 6 is collinear with the axis of the lock handle 1, when the lock handle 1, the first mounting plate 2, the cam 6 and the second mounting plate 4 are manufactured, an integrated structure can be adopted, the manufacturing and processing technology is very simple, and the production cost is reduced.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The telescopic steel pipe fixing and adjusting device is characterized by comprising a lock handle, a first mounting disc, a cam, a second mounting disc, a locking ring and a lock disc, wherein the lock handle is connected with one end of the first mounting disc, one end, far away from the lock handle, of the first mounting disc is connected with the cam, one end, far away from the first mounting disc, of the cam is connected with the second mounting disc, the locking ring is sleeved on the cam, the cam can move relative to the locking ring to press at least part of the locking ring to elastically deform outwards in the radial direction of the locking ring, the lock disc is connected with one end, far away from the cam, of the second mounting disc, the edge profile of the lock disc is approximately circular, and the edge of the lock disc protrudes out of the outer peripheral walls of the first mounting disc and the second mounting disc.

2. The telescopic steel pipe fixing and adjusting device according to claim 1, characterized in that: the lock disc is detachably connected with the second mounting disc.

3. The telescopic fixing and adjusting device for steel pipes according to claim 2, characterized in that: the geometric center of the end face of the lock disc is provided with a first through hole, a first fastening piece is arranged in the first through hole, one end of the first fastening piece is connected with the second mounting disc, and the first fastening piece presses the lock disc to be attached to one end, deviating from the cam, of the second mounting disc.

4. The telescopic fixing and adjusting device for steel pipes according to claim 2, characterized in that: the lock disc is provided with a plurality of second through holes, the second through holes surround the geometric center of the lock disc and are distributed in an annular array mode, second fasteners are arranged in the second through holes, one ends of the second fasteners are connected with the second mounting disc, and the second fasteners press the lock disc to be attached to one end, deviating from the cam, of the second mounting disc.

5. The telescopic steel pipe fixing and adjusting device according to any one of claims 1 to 4, wherein the locking ring comprises:

the ring body part is provided with a cavity for the cam to pass through;

the anti-slip part is arranged on the outer peripheral wall of the ring body part and protrudes out of the outer peripheral walls of the first mounting disc and the second mounting disc;

an inner protrusion disposed within the cavity and coupled to the ring body, the cam being rotatable relative to the lock ring and pressing the inner protrusion outwardly to elastically deform at least a portion of the lock ring radially outwardly of the lock ring.

6. The telescopic fixing and adjusting device for steel pipes according to claim 5, characterized in that: the ring body part is provided with a notch so that the ring body part is provided with a first end and a second end, and the central angle corresponding to the notch is smaller than 180 degrees.

7. The telescopic steel pipe fixing and adjusting device according to claim 6, characterized in that: at least one of the first end and the second end is provided with an inner convex part.

8. The telescopic steel pipe fixing and adjusting device according to claim 6, characterized in that: and an anti-skid part is arranged on the peripheral wall of at least one of the first end and the second end.

9. The telescopic fixing and adjusting device for steel pipes according to claim 5, characterized in that: the anti-slip portion includes a plurality of anti-slip ribs parallel to an axis of the lock ring.

10. The telescopic fixing and adjusting device for steel pipes according to any one of claims 1 to 4, characterized in that: the lock handle, the first mounting disc and the second mounting disc are cylinders, and the lock handle, the first mounting disc and the second mounting disc are coaxial.