CN111168433A

CN111168433A - Booster circular tube clamp with circumferential freedom degree

Info

Publication number: CN111168433A
Application number: CN202010117102.7A
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: 2020-05-19

Abstract

The invention discloses a circular tube clamp of a booster with circumferential freedom degree, which comprises a clamp body, a connecting piece and a circular tube tail end fixing device, wherein the clamp body is provided with a pinch roller set for clamping a circular tube, the head end of the connecting piece is connected with the clamp body, the tail end of the connecting piece is connected with the circular tube tail end fixing device, and a connecting component is arranged at the joint of the head end of the connecting piece and the clamp body or the joint of the tail end of the connecting piece and the circular tube tail end fixing device and can drive the distance between the tail end fixing device and the clamp body to change. In actual operation, anchor clamps body centre gripping pipe, tail end fixing device are near the tail end at the pipe, and operator action coupling assembling makes the distance between tail end fixing device and the anchor clamps body diminish, so, the tight pipe in tail end fixing device axial top prevents that the pipe from rocking, cuts, the chamfer, polishes or other processing operation provides the condition for the operator to the front end of pipe.

Description

Booster circular tube clamp with circumferential freedom degree

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. Wherein, the frame is assembled by a plurality of pipe, before the equipment, needs to cut, chamfer, polish the pipe.

According to prior art, cut, chamfer, polish the pipe, need anchor clamps to press from both sides tight pipe, if the pipe is longer, still need the thimble top at the tail end of pipe, prevent that the pipe 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 is pressed from both sides tight to anchor clamps, when the thimble withstood the pipe tail end, guarantee that the pipe position is fixed.

Above-mentioned fixed circular tube'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 ejector pin is high, the manufacturing cost of the whole clamp device is high, and the precision deviation of the guide rail or the ejector pin exceeds an allowable value in the using process, namely the guide rail or the ejector pin cannot be normally used.

Disclosure of Invention

The technical problems solved by the invention are as follows: the fixture with circumferential freedom is additionally provided with a circular tube tail end fixing device.

In order to solve the technical problems, the invention provides the following technical scheme: booster pipe anchor clamps with circumference degree of freedom, including the anchor clamps body, connecting piece and pipe tail end fixing device, the anchor clamps body is equipped with the pinch roller group of centre gripping pipe, the head end and the this body coupling of anchor clamps of connecting piece, the tail end and the pipe tail end fixing device of connecting piece are connected, the head end of connecting piece and the junction of anchor clamps body, perhaps, the tail end of connecting piece and the junction of pipe tail end fixing device are equipped with coupling assembling, this coupling assembling can order about the distance between tail end fixing device and the anchor clamps body and change.

The clamp body is equivalent to a clamp with circumferential freedom degree in the prior art, the clamp body is provided with a pressing wheel group for clamping a round tube, the pressing wheel group generally comprises four pressing wheels which are divided into an upper pair and a lower pair, the round tube is clamped by the upper pair and the lower pair of the pressing wheels, an operator rotates the round tube, and the four pressing wheels follow up, so that the clamp body has circumferential freedom degree.

The fixing device for the tail end of the circular tube is additionally arranged on the clamp body through a connecting piece. At least one of the joint of the head end of the connecting piece and the clamp body and the joint of the tail end of the connecting piece and the tail end fixing device of the round pipe is provided with a connecting component. In actual operation, anchor clamps body centre gripping pipe, tail end fixing device are near the tail end at the pipe, and operator action coupling assembling makes the distance between tail end fixing device and the anchor clamps body diminish, so, the tight pipe in tail end fixing device axial top prevents that the pipe from rocking, cuts, the chamfer, polishes or other processing operation provides the condition for the operator to the front end of pipe.

The tail end fixing device disclosed by the invention can be tightly propped against the tail end of the circular tube, and higher size precision, shape precision and position precision are not required.

The tail end fixing device is an additional structure on the clamp in the prior art, is beneficial to the full utilization of the clamp in the prior art, and has low cost compared with the thimble structure in the prior art.

Drawings

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

FIG. 1 is a schematic view of a booster round tube clamp with circumferential freedom;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a partial cross-sectional view of FIG. 1;

3 FIG. 34 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 31 3; 3

Fig. 5 is a schematic view of the hole site 101 into which the connector 20 is inserted vertically;

fig. 6 is an enlarged view of fig. 4 at B.

The symbols in the drawings illustrate that:

10. a clamp body; 101. a vertical hole location; 11. clamping; 110. a second semicircular notch; 12. a base; 120. a first semicircular notch; 13. hinging a shaft; 14. a threaded connection; 15. an upper pinch roller; 16. a lower pinch roller;

20. a connecting member; 21. an annular buckle;

30. a circular tube tail end fixing device; 31. an end cap; 32. a lateral extension; 33. a screw; 34. a butterfly nut; 35. a pin member; 36. a fixed portion; 37. a movable portion;

40. a positioning assembly; 41. a support; 42. positioning blocks; 43. fastening screws;

50. a circular tube.

Detailed Description

As fig. 1, booster pipe anchor clamps with circumference degree of freedom, including anchor clamps body 10, connecting piece 20 and pipe tail end fixing device 30, the anchor clamps body is equipped with the pinch roller group of centre gripping pipe, the head end and this body coupling of anchor clamps of connecting piece, the tail end and the pipe tail end fixing device of connecting piece are connected, the head end of connecting piece and the junction of anchor clamps body, perhaps, the tail end of connecting piece and the junction of pipe tail end fixing device, be equipped with coupling assembling, this coupling assembling can order about the distance between tail end fixing device and the anchor clamps body and change.

In actual operation, 10 centre gripping pipes 50 of anchor clamps body, tail end fixing device 30 is near the tail end at pipe 50, and operator action coupling assembling makes the distance between tail end fixing device and the anchor clamps body diminish, so, tail end fixing device axial top tightly prevents that the pipe from rocking at the tail end of pipe 50, cuts, the chamfer, polishes or other processing operation provides the condition for the operator to the front end of pipe.

Alternatively, a connecting component is arranged at the joint of the tail end of the connecting piece 20 and the pipe tail end fixing device 30. Specifically, referring to fig. 1, 4 and 6, the circular tube tail end fixing device 30 includes an end cap 31 capable of pressing against the circular tube tail end, a lateral extension 32 connected to the end cap, a screw 33 screwed on the lateral extension, and a wing nut 34 screwed on the screw, wherein a pin 35 is disposed at the front end of the screw, and an annular buckle 21 is disposed at the tail end of the connecting member 20 and capable of being buckled on the pin. Wherein the screw 33, the wing nut 34 and the pin 35 constitute the connecting assembly. The working principle of the connecting assembly is as follows: the clamp body 10 clamps the circular tube 50, the tail end of the circular tube abuts against the circular tube tail end fixing device 30, at the moment, the freedom of the axial displacement of the circular tube is limited, then, an operator rotates the butterfly nut 34, the butterfly nut axially displaces along the screw 33, the displacement direction is close to the clamp body, and therefore the end cover 31 is tightly pressed on the tail end of the circular tube, and the circular tube is prevented from shaking in the machining process.

The lateral extending portions 32 are a pair and located on the left side and the right side of the end cover 31, through holes are formed in the lateral extending portions, the screw 33 is matched in the through holes, the pin piece 35 is arranged at the front end of the screw protruding forwards through the through holes, the butterfly nut 34 is screwed at the rear end of the screw protruding backwards through the through holes, and the butterfly nut is pressed against the lateral extending portions 32. Thus, with the loop 21 at the end of the connector 20 engaged with the pin 35, the operator rotates the wing nut, which drives the barrel end fixture 30 forward, compressing the end of the barrel.

As shown in fig. 3, the end cap 31 has a tapered portion at its center, the tapered portion includes a fixed portion 36 and a movable portion 37, the movable portion is pivoted to the fixed portion, and the movable portion can press against the tail end of the circular tube; as shown in fig. 2, the clamp body 10 includes an upper clamp 11 and a base 12, the base is provided with a first semicircular notch 120, 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 connection piece 14, and the upper clamp is provided with a second semicircular notch 110 matched with the first semicircular notch; the second semicircular gap is provided with a pair of upper pinch rollers 15, the first semicircular gap is provided with a pair of lower pinch rollers 16, and the round tube is clamped by the pair of upper pinch rollers and the pair of lower pinch rollers.

The upper press wheel 15 is pivotally connected to the upper clamp 11, and the lower press wheel 16 is pivotally connected to the base 12. For example, the upper pressing wheel is provided with a semicircular inner groove at the second semicircular notch 110 of the upper clamp 11, the upper pressing wheel is pivoted in the inner groove through a shaft, most of the upper pressing wheel is positioned in the inner groove, and part of the upper pressing wheel radially protrudes out of the inner groove and can be pressed on the circular tube.

In operation, the tapered activating portion 37 extends partially into the internal bore at the end of the tube and bears against the end of the tube. The operator tightens the threaded connection 14 causing the pair of upper press wheels 15 and the pair of lower press wheels 16 to compress the tube. The operator tightens the wing nut 34 to compress the tube tail end fixture 30 against the tube tail end. Anchor clamps are accomplished the location of pipe, and the operator carries out the in-process of machine tooling to the front end of pipe, can rotate the pipe, and the pipe has the circumference degree of freedom promptly, facilitates for machine tooling, does benefit to machine tooling efficiency's improvement.

As shown in fig. 1 and 2, a positioning assembly 40 is disposed at a connection position between the head end of the connecting member 20 and the clamp body 10, the positioning assembly includes a bracket 41 disposed on the clamp body, a positioning block 42 mounted on the bracket, and a fastening screw 43 screwed on the positioning block, the positioning block is provided with a through hole, the fastening screw is perpendicular to the through hole, the head end of the connecting member is fitted in the through hole, and the fastening screw can be pressed against the connecting member. Under the condition that the fastening screw 43 is loosened, the connecting piece 20 can be drawn back and forth in the through hole, when the connecting piece is in a proper position, the fastening screw is tightened, the fastening screw presses against the connecting piece, and the connecting piece is fixed on the positioning block 42. So design, can adjust the distance between pipe tail end fixing device 30 and the anchor clamps body 10 to the distance between adaptation pipe tail end and the anchor clamps body.

As an improvement, the positioning block 42 is pivoted on the bracket 41, and the clamp body 10 is provided with a vertical hole 101 into which the connecting member 20 can be inserted. When the circular tube tail end fixing device 30 is not used, it is separated from the connecting member 20 and is placed separately. By loosening the fastening screws 43 and rotating the positioning block 42, the connector 20 is in an upright position and can be inserted into said vertical hole 101, see fig. 5, so that the connector does not occupy space and the clamp of the present invention allows the use of a common clamp of the prior art. This kind of structural design is that the anchor clamps that have the thimble among the prior art do not have.

Alternatively, the connecting members 20 are steel wires, the number of the steel wires is a pair, the steel wires are positioned on the left side and the right side of the circular tube 50, and the steel wires are parallel to the circular tube, so that the circular tube tail end fixing device 30 can be vertically pressed on the tail end of the circular tube, and the positioning stability of the circular tube is improved.

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. Booster pipe anchor clamps with circumference degree of freedom, including anchor clamps body (10), connecting piece (20) and pipe tail end fixing device (30), the anchor clamps body is equipped with the pinch roller group of centre gripping pipe, the head end and this body coupling of anchor clamps of connecting piece, and the tail end and the pipe tail end fixing device of connecting piece are connected its characterized in that: the junction of the head end of connecting piece and the anchor clamps body, perhaps, the tail end of connecting piece and pipe tail end fixing device's junction is equipped with coupling assembling, and this coupling assembling can order about the distance between tail end fixing device and the anchor clamps body and change.

2. The fixture of claim 1, wherein: the round tube tail end fixing device (30) comprises an end cover (31) capable of abutting against the tail end of the round tube, a lateral extension part (32) connected with the end cover, a screw (33) screwed on the lateral extension part and a butterfly nut (34) screwed with the screw, a pin piece (35) is arranged at the front end of the screw, an annular buckle (21) is arranged at the tail end of the connecting piece (20), and the annular buckle can be buckled on the pin piece.

3. The fixture of claim 2, wherein: the center of the end cover (31) is provided with a conical part, the conical part comprises a fixed part (36) and a movable part (37), the movable part is pivoted on the fixed part, and the movable part can be pressed against the tail end of the round pipe; the clamp body (10) comprises an upper clamp (11) and a base (12), wherein a first semicircular notch (120) 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 notch (110) matched with the first semicircular notch is formed in the upper clamp; the second semicircular opening is provided with a pair of upper pinch rollers (15), the first semicircular opening is provided with a pair of lower pinch rollers (16), and the round tube is clamped by the pair of upper pinch rollers and the pair of lower pinch rollers.

4. The fixture of claim 2, wherein: the head end of connecting piece (20) and the junction of anchor clamps body (10) are equipped with locating component (40), and locating component is including setting up support (41) on the anchor clamps body, installing locating piece (42) on the support, fastening screw (43) of spiro union on the locating piece, and the locating piece is equipped with the through-hole, and fastening screw perpendicular to through-hole, the head end cooperation of connecting piece are in the through-hole, and fastening screw can support and press on the connecting piece.

5. The fixture of claim 4, wherein: the positioning block (42) is pivoted on the support (41), a vertical hole (101) is formed in the clamp body (10), and the connecting piece (20) can be inserted into the hole.

6. The fixture of claim 1, wherein: the connecting pieces (20) are steel wires, the number of the connecting pieces is a pair, the connecting pieces are positioned on the left side and the right side of the circular tube (50), and the steel wires are parallel to the circular tube.