CN111300092A

CN111300092A - Anti-shaking jig for tail end of walking aid part

Info

Publication number: CN111300092A
Application number: CN202010117098.4A
Authority: CN
Inventors: 姚艳波; 冯海燕
Original assignee: Mirun Medical Technology Suzhou Co ltd
Current assignee: Mirun Medical Technology Suzhou Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-06-19
Anticipated expiration: 2040-02-25
Also published as: CN111300092B

Abstract

The invention discloses a jig for preventing shaking of the tail end of a part of a walking aid, which comprises a clamp, a flexible piece, a sleeve and an end cover, wherein one end of the flexible piece is connected with the clamp, the other end of the flexible piece is connected with the sleeve, the sleeve can be sleeved on a pipe fitting, and the end cover is provided with internal threads. The pipe fitting is inserted into the sleeve and then clamped by the clamp, and the end cover is screwed on the end part of the sleeve and is pressed against the end part of the pipe fitting in the sleeve. The end cover is rotated, the end cover axially displaces relative to the sleeve, the flexible piece is tensioned by the sleeve, the tail end of the pipe fitting is limited by the sleeve and the end cover, when an operator cuts, chamfers, polishes or performs other processing operations on the front end of the pipe fitting, the tail end of the pipe fitting cannot swing, and the pipe fitting is stably positioned.

Description

Anti-shaking jig for tail end of walking aid part

Technical Field

The invention relates to a rehabilitation appliance and a life auxiliary appliance, in particular to a walking aid.

Background

The walking aid, also called as auxiliary rehabilitation walking aid, has an integral structure similar to a wheelchair, and comprises a frame, wheels arranged at the bottom of the frame and a pair of handles arranged at the back of the top of the frame. The frame is assembled by a plurality of pipe fittings, and before the assembly, the pipe fittings need to be cut, chamfered and polished.

According to prior art, cut, chamfer, polish the pipe fitting, need anchor clamps to press from both sides tight pipe fitting, if the pipe fitting is longer, still need the thimble top at the tail end of pipe fitting, prevent that the pipe fitting from rocking. The thimble needs corresponding guide rail to supply its displacement, and this guide rail and anchor clamps should be structure as an organic whole, perhaps, guide rail and anchor clamps be fixed relation, if fix on same base, so, could be when the pipe fitting is pressed from both sides tight to the anchor clamps, the thimble withstands the pipe fitting tail end, guarantees that the pipe fitting position is fixed.

Above-mentioned fixed pipe fitting's anchor clamps and the cooperation of thimble, have following problem: firstly, the clamp, the thimble and the matched guide rail or base occupy larger space; secondly, the manufacturing precision of the guide rail and the thimble is high, the manufacturing cost of the whole clamp device is high, and the precision deviation of the guide rail or the thimble exceeds an allowable value in the using process, namely the guide rail or the thimble cannot be normally used; thirdly, the thimble acts on the tail end of the pipe, and the pipe between the tail end of the pipe and the clamp is easy to bend.

Disclosure of Invention

The technical problems solved by the invention are as follows: the common fixture is additionally provided with a pipe fitting tail end fixing device.

In order to solve the technical problems, the invention provides the following technical scheme: help capable ware part tail end and prevent shaking tool, including anchor clamps, flexible piece, sleeve pipe and end cover, the one end and the anchor clamps of flexible piece are connected, and the other end and the bushing of flexible piece, sleeve pipe can overlap on the pipe fitting, and the end cover is equipped with the internal thread, can the spiro union at sheathed tube tip, and the end cover can support and press the tip at the intraductal pipe fitting of sleeve.

The pipe fitting firstly extends into the sleeve and then is clamped by the clamp, and the end cover is screwed on the end part of the sleeve and is pressed against the end part of the pipe fitting in the sleeve. The flexible piece is not flexible, an operator rotates the end cover, the end cover axially displaces relative to the sleeve, and the sleeve displaces relative to the end cover and is far away from the clamp under the condition that the position of the end cover is not changed because the end cover is pressed against the end part of the pipe fitting, so that the flexible piece is tensioned by the sleeve. Under the effect of effort and reaction force, sleeve pipe and the end cover that the spiro union is in the same place are strained to the flexible piece, so, the tip of the pipe fitting that is pressed from both sides tightly by anchor clamps, the tail end of pipe fitting is spacing by sleeve pipe and end cover, when the operator cuts the front end of pipe fitting, chamfer, polishes or other processing operations, the tail end of pipe fitting can not swing, and the pipe fitting obtains stable location.

Because the flexible piece is connected with the clamp and the sleeve, and the sleeve and the end cover are in a detachable threaded connection, when the flexible piece is not used, the sleeve and the end cover can be placed beside the clamp, and the flexible piece does not occupy space.

The sheathed tube internal diameter is a bit more than the pipe fitting can, the end cover can support press in the tail end of pipe fitting when the spiro union is on the sleeve pipe can, need not higher size precision, shape precision and position precision.

The sleeve pipe has certain length, can overlap on the pipe fitting, compares in the tail end of thimble top at the pipe fitting, and in actual operation, the sleeve pipe can prevent pipe fitting bending deformation.

As an improvement, in actual operation, when the flexible part is tensioned, the flexible part is close to the central line of the pipe fitting as much as possible, so that the pipe fitting can be effectively prevented from being bent. To achieve this, the attachment points of the flexible member to the clamp and the flexible member to the sleeve should be as close as possible to the pipe elements.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of an anti-shaking jig at the tail end of a component of a walking aid;

fig. 2 is a left side view of fig. 1.

The symbols in the drawings illustrate that:

10. a clamp; 11. a base; 12. clamping; 13. hinging a shaft; 14. a threaded connection;

20. a flexible member;

30. a sleeve;

40. an end cap; 41. an annular outer ring; 42. a positioning part; 421. a fixed portion; 422. a movable portion; 43. a casing abdication space;

50. a pipe fitting.

Detailed Description

As shown in figure 1, the anti-shaking jig for the tail end of the walking aid part comprises a clamp 10, a flexible part 20, a sleeve 30 and an end cover 40, wherein one end of the flexible part is connected with the clamp, the other end of the flexible part is connected with the sleeve, the sleeve can be sleeved on a pipe fitting 50, the end cover is provided with internal threads and can be screwed at the end part of the sleeve, and the end cover can be abutted against the end part of the pipe fitting in the sleeve.

The flexible member 20, sleeve 30 and end cap 40 form a fixture for the end of a tube to be attached to a conventional clamp 10.

Wherein the flexible member 20 has no elasticity, but can be bent freely, and alternatively, the flexible member 20 is a woven tape having no elasticity.

In operation, the tubular member 50 is first inserted into the casing 30 and then clamped by the clamp 10. Specifically, an operator pulls the flexible member 20 tightly to make the sleeve 30 farthest away from the clamp 10, and then adjusts the position of the pipe fitting 50 in the sleeve, so that the end cap 40 can be pressed against the tail end of the pipe fitting when being screwed on the tail end of the sleeve; the clamp 10 then clamps the pipe.

The end cap 40 is then threaded onto the end of the sleeve 30, i.e., the trailing end of the sleeve, and is pressed against the end of the tubular member 50 within the sleeve, i.e., the trailing end of the tubular member. The operator rotates the end cap 40 relative to the sleeve 30, the end cap is axially displaced relative to the sleeve, the position of the end cap 40 remains unchanged, the sleeve 30 is displaced relative to the end cap and away from the clamp 10, and the sleeve tensions the flexible member 20, since the end cap bears against the tail end of the tubular member 50 and the tubular member is clamped by the clamp 10. Under the effect of effort and reaction force, sleeve pipe and the end cover that the spiro union is in the same place are strained to the flexible piece, and like this, the tail end of the pipe fitting 50 that is pressed from both sides tightly by anchor clamps is spacing by sleeve pipe 30 and end cover 40, and when the operator cut, chamfer, ground or other machining operation to the front end of pipe fitting, the tail end of pipe fitting can not swing, and pipe fitting 50 obtains stable location.

The end cover 40 comprises an annular outer ring 41 and a positioning part 42 located at the center of the annular outer ring, the positioning part is conical, a sleeve yielding space 43 is formed in the area between the annular outer ring and the positioning part, and the internal thread is arranged on the inner side wall of the annular outer ring. The operator rotates the end cap 40 relative to the sleeve 30, the end cap is axially displaced relative to the sleeve, the tail end of the sleeve penetrates into the sleeve relief space 43, the front end of the tapered positioning portion 42 is pressed against the inner hole at the tail end of the pipe 50, and the position of the positioning portion 42 relative to the pipe 50 and the clamp 10 is kept unchanged in a state that the flexible member 20 is tensioned.

The positioning part 42 includes a fixed part 421 and a movable part 422, the tail end of the movable part is pivoted on the fixed part through a bearing, and the head end of the movable part can extend into the end of the pipe 50. The fixed portion 421 and the movable portion 422 are both tapered to form a large taper after mating. The movable portion is pressed against the end of the tube 50 and can be kept from rotating, while the fixed portion 421 can rotate with the end cap 40 relative to the sleeve 30, so as to facilitate the axial displacement of the sleeve 30 relative to the end cap 40. In addition, the above design of the positioning portion 42 also facilitates the operator to rotate the pipe 50 in the actual operation process, for example, after the operator finishes polishing one side of the pipe 50, the operator needs to rotate the pipe and polish other side walls, at this time, the operator loosens the clamp 10 to release the pipe 50 and rotate the pipe, during the rotation process, the movable portion 422 can rotate relative to the fixed portion 421, and the existence of the end cover 40 will not become an obstacle for the operator to rotate the pipe.

As shown in fig. 2, the clamp 10 includes a base 11 and an upper clamp 12, the base is provided with a first semicircular notch, the left end of the upper clamp is pivoted to the left end of the base through a hinge shaft 13, the right end of the upper clamp can be connected to the right end of the base through a threaded connection piece 14, and the upper clamp is provided with a second semicircular notch matched with the first semicircular notch; the flexible member 20 is connected to the base. The tubular member 50 is placed in the first semi-circular slit and the operator rotates the upper clamp 12 to engage the base 11 and tightens the threaded connector 14, the second semi-circular slit and the first semi-circular slit to clamp the tubular member. Alternatively, the threaded connection 14 is a bolt and nut.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims

1. Help capable ware part tail end and prevent shaking tool, including anchor clamps (10), flexible piece (20), sleeve pipe (30) and end cover (40), its characterized in that: one end and the anchor clamps of flexible piece are connected, and the other end and the bushing of flexible piece are connected, and the sleeve pipe can overlap on pipe fitting (50), and the end cover is equipped with the internal thread, can the spiro union at sheathed tube tip, and the end cover can support and press the tip at the intraductal pipe fitting of sleeve.

2. The jig of claim 1, wherein: the end cover (40) comprises an annular outer ring (41) and a positioning part (42) located at the center of the annular outer ring, the positioning part is conical, a sleeve abdicating space (43) is formed in an area between the annular outer ring and the positioning part, and the internal thread is arranged on the inner side wall of the annular outer ring.

3. The jig of claim 2, wherein: the positioning part (42) comprises a fixed part (421) and a movable part (422), the tail end of the movable part is pivoted on the fixed part through a bearing, and the head end of the movable part can extend into the end part of the pipe fitting (50).

4. The jig of claim 1, wherein: the flexible part (20) is a woven tape.

5. The jig of claim 1, wherein: the clamp (10) comprises a base (11) and an upper clamp (12), wherein a first semicircular opening is formed in the base, the left end of the upper clamp is pivoted to the left end of the base through a hinge shaft (13), the right end of the upper clamp can be connected with the right end of the base through a threaded connecting piece (14), and a second semicircular opening matched with the first semicircular opening is formed in the upper clamp; the flexible member (20) is connected to the base.