TWM594299U - Joint capable of diverting protection tube - Google Patents

Abstract

A joint capable of movable steering of a protection tube includes a body unit and a limit unit. The body unit is hollow and used for inserting a protective tube along an axis. The body unit includes a first inner end surface, a second inner end surface opposite to the first inner end surface along the axis, and an extension extending from the An inner peripheral surface between the first inner end surface and the second inner end surface, the first inner end surface, the second inner end surface, and the inner peripheral surface jointly define an installation space. The limiting unit is used to connect the protection tube and is limited in the installation space. The limiting unit includes a first outer end surface adjacent to the first inner end surface and a second outer end surface adjacent to the second inner end surface An end surface, and an outer peripheral surface adjacent to the inner peripheral surface, the distance between the first outer end surface and the second outer end surface is smaller than the distance between the first inner end surface and the second inner end surface, the diameter of the outer peripheral surface is smaller than the inner surface The diameter of the peripheral surface, so that the limiting unit can rotate about the axis relative to the body unit, and can allow the connection between the protection tube and the joint to rotate flexibly.

Description

Connector for movable steering of protection tube

The present invention relates to a joint, in particular to a joint that can move the protective tube movably.

There is a wave tube quick waterproof joint disclosed in Taiwan Patent No. M296536, which includes a hollow joint body, a waterproof fixing set, and a pressing piece. The joint body includes a second engaging portion with external threads, and a convex abutment protruding from the inner middle section. The waterproof fixing set includes a soft waterproof seat and a ring buckle, the soft waterproof seat is hollow, and has a lip that is inserted into the joint body of the joint body and leans against the convex resisting edge, and a reverse A concave bearing portion on the lip and abutting against an end surface of the second engaging portion, the buckle ring is inserted into the concave bearing portion of the soft waterproof seat, and has a plurality of elastic buckle pieces provided on the inner ring, and a plurality of The card edge is arranged at the free end of the elastic snap. The pressing member has a socket for the penetration of a wave tube, an internal thread segment locked to the second joint portion of the joint body, and a pusher located on the inner edge of the socket and pushing against the buckle ring Pressure surface.

In use, one end of the wave tube is inserted by the socket of the pressing member, and is inserted into the waterproof fixing member group, and is engaged with the clamping edges of the buckle ring to be fixed to the The wave tube quick waterproof joint, so that the wave tube can be connected to a fixed object via the wave tube quick waterproof joint.

However, the wave tube is mainly used for the electrical wires of the machine to protect the wires, and the wires will move with the movement of the machine. At this time, because the end of the wave tube is firmly pressed against the The fast waterproof joint of the wave tube makes the wire and the wave tube restricted, and it cannot rotate freely at random. In particular, robot arms with more than three axes are now very common, and four-axis and five-axis robot arms are widely used. In the manufacturing industry, the robot arm emphasizes the flexibility and accuracy of movement. However, the wires of the robot arm are limited by the quick waterproof connector of the wave tube, which will cause the robot arm to be pulled during the operation and affect its movement. Accuracy.

In addition, if the wave tube receives a relatively large rotating force and rotates relative to the buckle ring, it will also cause the wave tube to be cut by the clamping edges of the ring ring, causing the wave tube to fall off from the joint, Exposing the internal wires, even when cutting the wave tube, also cut the internal wires.

Therefore, the purpose of the present invention is to provide a joint that can move the protection tube movably.

Therefore, the new type of joint that can be used for the movable steering of the protection tube includes a body unit and a limit unit. The body unit is hollow and used for inserting a protective tube along an axis. The body unit includes a first inner end surface, a second inner end surface opposite to the first inner end surface along the axis, and an extension extending from the An inner peripheral surface between the first inner end surface and the second inner end surface, the first inner end surface, the second inner end surface, and the inner peripheral surface jointly define an installation space for the protection tube to be inserted. The limiting unit is used to connect the protection tube and is limited in the installation space. The limiting unit includes a first outer end surface adjacent to the first inner end surface, an opposite to the first outer end surface along the axis and A second outer end surface adjacent to the second inner end surface, and an outer peripheral surface extending between the first outer end surface and the second outer end surface and adjacent to the inner peripheral surface, the first outer end surface and the second The distance between the outer end surfaces is smaller than the distance between the first inner end surface and the second inner end surface, and the diameter of the outer peripheral surface is smaller than the diameter of the inner peripheral surface, so that the limiting unit can rotate about the axis relative to the body unit.

The effect of the present invention lies in that the distance between the first outer end surface and the second outer end surface of the limit unit is smaller than the distance between the first inner end surface and the second inner end surface of the body unit, and the limit unit The diameter of the outer peripheral surface is smaller than the diameter of the inner peripheral surface of the body unit, so that the limit unit can rotate around the axis with the protection tube in the installation space to allow the connection between the protection tube and the joint to be flexible Of rotation.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

Referring to FIGS. 1 and 2, a first embodiment of a new type of joint capable of moving a protective tube of the present invention is suitable for connecting a protective tube 9. In this embodiment, an outer surface 91 of the protective tube 9 forms a plurality of The recesses 911 are annular and spaced apart from each other. The joint capable of movable steering of the protection tube includes a body unit 1 and a limit unit 2.

The body unit 1 is hollow and used for inserting the protection tube 9 along an axis L. The body unit 1 includes a first inner end surface 11, a second inner end surface 12 opposite to the first inner end surface 11 along the axis L, and a portion extending from the first inner end surface 11 and the second inner end surface 12 The inner peripheral surface 13, the first inner end surface 11, the second inner end surface 12 and the inner peripheral surface 13 collectively define an installation space 14 for inserting the protection tube 9.

In this embodiment, the body unit 1 further includes a joint body 15 and a set 16 that is set and screwed to one end 150 of the joint body 15. The joint body 15 and the set 16 jointly define the installation space 14. The end portion 150 of the joint body 15 is tubular and has an end surface 151 that constitutes the first inner end surface 11. The kit 16 is used for the protection tube 9 to pass through and has an inner end surface 161 opposite to the joint body 15, and an inner annular surface 162 connected to the inner end surface 161 and locked to the joint body 15, the inner end surface 161 constitutes the second inner end surface 12, and the inner annular surface 162 constitutes the inner peripheral surface 13.

The limiting unit 2 is used to connect the protection tube 9 and is limited in the installation space 14. The limiting unit 2 includes a first outer end surface 21 adjacent to the first inner end surface 11, and an opposite side along the axis L A second outer end surface 22 adjacent to the second inner end surface 12 on the first outer end surface 21, and an inner peripheral surface 13 extending between the first outer end surface 21 and the second outer end surface 22的peripheral surface 23. The first outer end surface 21 and the second outer end surface 22 are respectively restricted by the inner end surface 11 and the second inner end surface 12 of the body unit 1 in the direction in which the axis L extends, so that the limit The unit 2 is limited in the installation space 14. The first external face 21 and the outer end surface of the second pitch is less than 2 l 22 of the first inner surface 11 and the second inner end surface 12 of the distance l 1, and the outer peripheral surface diameter d2 23 is smaller than the inner circumferential surface 13 The diameter d1, so that the limiting unit 2 can rotate relative to the body unit 1 about the axis L.

In this embodiment, the limiting unit 2 further includes a limiting member 24 that is C-shaped about the axis L. The limiting member 24 has an outer ring portion 241 for covering the protection tube 9 and at least one blocking portion 242 connected to the outer ring portion 241 and protruding inward toward the axis L. The outer ring portion 241 has two opposite end surfaces 243 along the axis L, an outer ring surface 244 connecting the end surfaces 243, and an inner ring surface 245 opposite to the outer ring surface 244, the end surfaces 243 are adjacent to each other The first inner end surface 11 and the second inner end surface 12, and the end surface 243 adjacent to the first inner end surface 11 constitutes the first outer end surface 21, and the other end surface 243 constitutes the second outer end surface 22, the outer The torus 244 constitutes the outer peripheral surface 23. In this embodiment, the limiting member 24 has a plurality of blocking portions 242 spaced around the axis L, and each blocking portion 242 is connected to the inner ring surface 245 and has an elastic claw shape. The blocking portion 242 is used to block one of the concave portions 911 positioned in the protection tube 9 and only allows the protection tube 911 to pass from the second inner end surface 12 toward the first inner end surface 11.

In this embodiment, the joint body 15, the kit 16, the limiting member 24 and the protection tube 9 can be made of plastic materials, and the materials of these components are not limited to this.

When assembling, the stopper 24 can be placed in the kit 16 first, and then the kit 16 can be locked with the end 150 of the joint body 15, and then the protective tube 9 can be along the axis L. The kit 16 is inserted into the installation space 14 in the direction of the joint body 15. During the insertion process, the limiting member 24 can be deformed by the pushing force to pass the protective tube 9 until the protective tube 9 is inserted into a sufficient length. The blocking portions 242 of the position piece 24 are locked and positioned with one of the concave portions 911 of the protection tube 9 so that the protection tube 9 cannot be drawn away from the joint body 15 along the axis L, and the assembly is completed. However, the assembly method of this embodiment is not limited to this.

In use, since the distance l2 between the first outer end surface 21 and the second outer end surface 22 of the limiting unit 2 is smaller than the distance l1 between the first inner end surface 11 and the second inner end surface 12 of the body unit 11, And the diameter d2 of the outer peripheral surface 23 of the limiting unit 2 is smaller than the diameter d1 of the inner peripheral surface 13 of the body unit 1 (in this case, the joint body 15 and the set 16 are locked with each other), so when the protection tube 9 When rotating around the axis L by external force, the limiting unit 2 can rotate around the axis L in the installation space 14 along with the protection tube 9 to allow the protection tube 9 to be connected to the joint that can be steered by the protection tube It can be flexibly rotated, so when this embodiment is used for the wiring of the general machine, the wire can be allowed to rotate freely with the movement of the machine, especially for the mechanical arm with more than three axes When the electric wire is laid, the electric wire can be smoothly rotated to avoid the electric wire from being stuck or pulled, which affects the accuracy of the robot arm movement.

In addition, since the limiting member 24 can rotate freely in the installation space 14, it is possible to avoid the locking of the limiting member 24 in the installation space 14 and relative rotation with the protection tube 9, resulting in the limiting member 24 The blocking parts 242 cut the protective tube 9.

Referring to FIGS. 3 and 4, the second embodiment of the joint of the new type of movable steering tube of the present invention is similar to the first embodiment, and the difference is that:

The number of the blocking portion 242 of the limiting element 24 of the limiting unit 2 is one, and the blocking portion 242 extends around the axis L, and faces the axis L from the inner ring surface 245 of the outer ring portion 241 Radially extending, the blocking portion 242 is used to block a recess 911 positioned in the protection tube 9.

In this embodiment, because the structure of the limiting member 24 is relatively simple, the thickness of the outer ring portion 241 can be increased, and the structural strength of the limiting member 24 can be increased, making it difficult to deform, and it can be firmly clamped The protection tube 9 makes the present embodiment applicable to the protection tube 9 having a larger connection size.

In this embodiment, when assembling, the kit 16 is first sleeved on the protection tube 9, then the stopper 24 is pulled apart and sleeved on the end of the protection tube 9, and finally the joint body 15 and The kit 16 can be locked.

Since this embodiment has a structure similar to that of the first embodiment, it can also achieve the same purposes and effects as the first embodiment.

Referring to FIGS. 5 and 6, a third embodiment of the joint of the new type of movable steering pipe of the present invention is similar to the first embodiment, and the difference is that:

An inner surface 92 of the protective tube 9 suitable for the movable steering joint of the protective tube forms a spiral concave portion 921. The inner peripheral surface 13 of the body unit 1 of the movable steering joint of the protection tube has a first inner diameter section 131 and a second inner diameter section 132 having a diameter different from the first inner diameter section 131. The outer peripheral surface 23 of the limiting unit 2 has a first outer diameter section 231 whose position and diameter correspond to the first inner diameter section 131 and a second outer diameter section whose position and diameter correspond to the second inner diameter section 132 232. The diameter d2' of the first outer diameter section 231 is smaller than the diameter d1' of the first inner diameter section 131, and the diameter d2" of the second outer diameter section 232 is smaller than the diameter d1" of the second inner diameter section 132.

The end 150 of the joint body 15 of the body unit 1 further has an inner tube surface 152 connected to the inner edge of the end surface 151, and a shoulder surface 153 connected to the inner tube surface 152 and away from the end surface 151, The inner tube surface 152 constitutes the first inner diameter section 131, the shoulder surface 153 constitutes the first inner end surface 11, and the portion of the inner annular surface 162 of the kit 16 which is not connected to the joint body 15 constitutes the second inner diameter section 132.

The limiting unit 2 includes the first outer end surface 21, the second outer end surface 22, and the outer peripheral surface 23, and further includes an end adjacent to the first inner end surface 11 for fixing to the protection tube 9 A positioning member 25 and a backing ring 26 between the positioning member 25 and the second inner end surface 12 and used to be sleeved on the protection tube 9. The positioning member 25 has an outer cover portion 251 located between the first inner end surface 11 and the backing ring 26 and used for covering the end of the protection tube 9, and a lock connected to the inner edge of the outer cover portion 251接部252. The outer cover portion 251 has an end surface 253 adjacent to the first inner end surface 11 and an outer ring surface 254 connected to the outer edge of the end surface 253 and extending toward the backing ring 26. The end surface 253 constitutes the first outer end surface 21 The outer ring surface 254 constitutes the first outer diameter section 231. The locking portion 252 is used to insert the end of the protection tube 9 and screw onto the inner surface 92 of the protection tube 9. The backing ring 26 has two abutting surfaces 261 opposite to the axis L, and an outer ring surface 262 connecting outer edges of the abutting surfaces 261, the abutting surfaces 261 are adjacent to the positioning member 25 and the The second inner end surface 12, the abutting surface 261 adjacent to the second inner end surface 12 constitute the second outer end surface 22, and the outer annular surface 262 constitutes the second outer diameter section 232.

In this embodiment, the positioning member 25 can be made of metal material, the backing ring 26 can be made of rubber material, the protection tube 9 can be made of metal material and the outer layer is covered with a rubber layer, but the materials of these components Not limited to this.

In this embodiment, when assembling, the kit 16 can be sleeved on the protection tube 9, then the gasket ring 26 can be sleeved on the end of the protection tube 9, and then the locking portion of the positioning member 25 252 is inserted into the end of the protective tube 9 and is screwed to the inner surface 92 of the protective tube 9, at this time, the backing ring 26 is located between the positioning member 25 and the kit 16, and finally the joint body 15 and The kit 16 can be locked.

In use, the first end surface of the outer end face 21 and the second outer pitch l 22 2 is smaller than the inner end surface 11 of the first end surface and the second inner spacing of 1 l 12 (the positioning member 25 and the cushion ring 26 When it comes into contact), and the diameter d2' of the first outer diameter section 231 is smaller than the diameter d1' of the first inner diameter section 131, the diameter d2" of the second outer diameter section 232 is smaller than the diameter of the second inner diameter section 132 The diameter d1", so the limiting unit 2 can rotate with the protection tube 9 in the installation space 14, so the same purpose and effect as the first embodiment can be achieved.

In summary, the new activity for the protective steering tube joint, by limiting the unit 2 of the first external face 21 and the pitch of the second outer end face 22 of the body l 2 smaller than the first unit 1 The distance between the inner end surface 11 and the second inner end surface 12 is l 1, and the diameter d2 of the outer peripheral surface 23 of the limiting unit 2 is smaller than the diameter d1 of the inner peripheral surface 13 of the body unit 1, so that the limiting unit 2 It can rotate with the protection tube 9 in the installation space 14 about the axis L to allow the protection tube 9 to be flexibly rotated at the joint where the protection tube can be steered, thereby ensuring the movement of the internal wires and the machine It is smooth and can prevent the protection tube 9 and the limiting unit 2 from rotating and being damaged, so it can really achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

1: Body unit 11: First inner end surface 12: Second inner end surface 13: Inner peripheral surface 131: First inner diameter section 132: Second inner diameter section 14: Installation space 15: Joint body 150: End portion 151: End surface 152: inner tube surface 153: shoulder surface 16: kit 161: inner end surface 162: inner ring surface 2: limit unit 21: first outer end surface 22: second outer end surface 23: outer peripheral surface 231: first outer diameter section 232 : Second outer diameter section 24: Limiting piece 241: Outer ring part 242: Stuck part 243: End face 244: Outer ring face 245: Inner ring face 25: Positioning piece 251: Outer cover part 252: Locking part 253: End face 254: outer ring surface 26: cushion ring 261: abutment surface 262: outer ring surface 9: protective tube 91: outer surface 911: recessed portion 92: inner surface 921: recessed portion L: axis l 1: spacing l 2: spacing d1: Diameter d1': Diameter d1": Diameter d2: Diameter d2': Diameter d2": Diameter

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is an exploded perspective view of a first embodiment of the joint of the present invention that can be used for the movable steering of a protection tube; 2 is a cross-sectional view of the first embodiment; FIG. 3 is an exploded perspective view of a second embodiment of the joint of the present invention that can be used for movable steering of a protection tube; 4 is a cross-sectional view of the second embodiment; FIG. 5 is an exploded perspective view of a third embodiment of the joint of the present invention that can move the protective tube movable; and 6 is a cross-sectional view of the third embodiment.

1: Ontology unit

11: The first inner end

12: second inner end face

13: inner surface

14: Setting space

15: Connector body

150: end

16: Suite

23: outer peripheral surface

24: Limit parts

241: Outer ring

242: blocking part

243: end face

9: Protection tube

L: axis

l 1: Spacing

2: Limit unit

21: The first outer end face

22: Second outer end face

l 2: Spacing

d1: diameter

d2: diameter

Claims (7)

A kind of joint that can be used for the protection tube to move, including: A body unit is hollow and used for inserting a protective tube along an axis. The body unit includes a first inner end surface, a second inner end surface opposite to the first inner end surface along the axis, and an extension An inner peripheral surface between the first inner end surface and the second inner end surface, the first inner end surface, the second inner end surface, and the inner peripheral surface jointly define a setting space for insertion of the protection tube; and A limit unit for connecting the protection tube and limited to the installation space, the limit unit includes a first outer end surface adjacent to the first inner end surface, and a first outer end surface opposite to the first outer end surface along the axis And a second outer end surface adjacent to the second inner end surface, and an outer peripheral surface extending between the first outer end surface and the second outer end surface and adjacent to the inner peripheral surface, the first outer end surface and the first The distance between the two outer end surfaces is smaller than the distance between the first inner end surface and the second inner end surface, and the diameter of the outer peripheral surface is smaller than the diameter of the inner peripheral surface, so that the limiting unit can rotate relative to the body unit about the axis . The joint capable of movable steering of the protection tube as described in claim 1, wherein the body unit further includes a joint body, and a kit fixed to one end of the joint body, the end of the joint body and having An end face, the end face forms the first inner end face, the kit is used for the protection tube to pass through and has an inner end face opposite to the joint body, and an inner annular face connected to the inner end face and connected to the joint body, The inner end surface constitutes the second inner end surface, and the inner ring surface constitutes the inner peripheral surface. The joint for movable steering of a protection tube as described in claim 2, an outer surface of the protection tube is formed with a plurality of ring-shaped and spaced-apart recesses, wherein the limiting unit further includes a C-shape around the axis The limiting member has an outer ring portion for covering the protection tube, and at least one blocking portion connected to the outer ring portion and protruding inward toward the axis, the outer ring portion has Two opposite end surfaces along the axis, an outer annular surface connecting the end surfaces, and an inner annular surface opposite to the outer annular surface, the end surfaces of the stopper are adjacent to the first inner end surface and the first Two inner end surfaces, which respectively constitute the first outer end surface and the second outer end surface, the outer ring surface of the limiter constitutes the outer peripheral surface, and the blocking portion is used to block one of the protection tubes Depression. The joint capable of movable steering of a protection tube as described in claim 3, wherein the limiting member of the limiting unit has a plurality of blocking portions spaced around the axis, and each blocking portion is connected to the outer ring portion The inner ring surface is elastically shaped like a claw. The blocking portions are used to block one of the recessed portions of the protection tube, and only for the protection tube from the second inner end toward the first The direction of an inner end face is passed. The joint capable of movable steering of the protection tube according to claim 3, wherein the number of the blocking parts of the limiting member of the limiting unit is one, and the blocking part extends around the axis and is formed by the outer The inner ring surface of the ring portion extends radially toward the axis, and the blocking portion is used to block a recessed portion positioned in the protection tube. The joint capable of movable steering of a protection tube as described in claim 2, wherein the inner peripheral mask of the body unit has a first inner diameter segment, and a second inner diameter segment, and the outer peripheral surface of the limiting unit Having a pair of first outer diameter sections corresponding to the first inner diameter section and a pair of second outer diameter sections corresponding to the second inner diameter section, the diameter of the first outer diameter section is smaller than the diameter of the first inner diameter section, The diameter of the second outer diameter section is smaller than the diameter of the second inner diameter section. The joint capable of deflecting a protective tube according to claim 6, wherein the end of the joint body of the body unit is tubular, and the end further has an inner tube connected to the inner edge of the end surface of itself Surface, and a shoulder surface whose outer edge is connected to the inner tube surface and away from the end surface, the inner tube surface constitutes the first inner diameter section, the shoulder surface constitutes the first inner end surface, and the inner ring surface of the kit is not connected The part of the joint body constitutes the second inner diameter section, and the limiting unit further includes a positioning member adjacent to the first inner end surface for fixing to the end of the protection tube, and a positioning member located on the positioning member and the A gasket ring between the second inner end surfaces and used to sleeve the protection tube, the positioning member has an outer cover located between the first inner end surface and the gasket ring and sleeved on the end of the protection tube Part, and a locking part connected to the inner edge of the outer cover part and used to insert the protection tube, the outer cover part has an end surface adjacent to the first inner end surface, and an outer edge connected to the end surface of the outer cover part And the outer ring surface extending toward the backing ring, the end surface of the positioning member constitutes the first outer end surface, the outer ring surface of the positioning member constitutes the first outer diameter section, the backing ring has two opposite along the axis An abutting surface, and an outer annular surface connecting the outer edges of the abutting surfaces, the abutting surfaces are respectively adjacent to the positioning member and the second inner end surface, and the abutting surface adjacent to the second inner end surface constitutes The second outer end surface and the outer ring surface of the backing ring constitute the second outer diameter section.

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