CN216156823U - Corner joint for connecting spatially staggered profiles - Google Patents

Abstract

The utility model discloses a corner joint for connecting spatially staggered profiles, which comprises a first clamping piece, a second clamping piece, a third clamping piece, a first locking component and a second locking component, wherein the first clamping piece is at least partially bent. The first clamping piece and the second clamping piece are folded to form a first clamping part in a chute shape, the first clamping piece and the third clamping piece are folded to form a second clamping part in the chute shape, the first clamping part and the second clamping part are respectively located at two ends of the first clamping piece, and projections of the first clamping part and the second clamping part on parallel surfaces are intersected. The parallel surface is a plane parallel to the extending direction of the first clamping part and the extending direction of the second clamping part. The corner joint connects two adjacent cross-spanning section bars and realizes the span connection in space to form a reinforced frame structure and improve the connection and combination tightness between the section bars.

Description

Corner joint for connecting spatially staggered profiles

Technical Field

The utility model relates to the technical field of connecting devices, in particular to a corner joint for connecting spatially staggered sectional materials.

Background

The flexible semi-automatic system construction needs tubular profiles and various joints, however, when the tubular profiles or units crossed at 90 degrees are connected in an auxiliary reinforcing manner, the two profiles are always separated from each other, and the closed joints cannot be adopted for fixed connection, so that the overall structural strength is low, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a corner fitting for connecting spatially offset profiles.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a corner connects for connecting space dislocation section bar, the corner connects includes first holder, second holder, third holder, locking connection the first locking Assembly, the locking connection of first holder and second holder the second locking Assembly of first holder and third holder, first holder is at least partly crooked, first holder and second holder fold and form the first clamping part of spout-like, first holder and third holder fold and form the second clamping part of spout-like, first holder and second clamping part are located respectively the both ends of first holder, first holder with the projection of second clamping part on the parallel surface is crossing, wherein, the parallel surface is for being on a parallel with the plane of the extending direction of first holder and the extending direction of second clamping part.

In one embodiment, the projections of the first clamping part and the second clamping part on the parallel surfaces are perpendicular.

In an embodiment, the first clamping piece comprises a first bending portion, a second bending portion perpendicular to the first bending portion, a first clamping portion protruding from an end portion of the first bending portion, and a second clamping portion protruding from an end portion of the second bending portion, the second clamping piece is locked and folded with the first bending portion through the first locking component, and forms a first clamping portion with the first clamping portion, and the third clamping piece is locked and folded with the second bending portion through the second locking component, and forms a second clamping portion with the second clamping portion.

In an embodiment, the first clamping piece further comprises a chamfered portion connecting the first bending portion and the second bending portion, an area of a cross portion of the chamfered portion and the second bending portion is smaller than a cross-sectional area of the chamfered portion, and one end of the third clamping piece is opposite to an end face of the chamfered portion exceeding the second bending portion.

In an embodiment, an area of a portion where the chamfered portion intersects with the second curved portion is smaller than a cross-sectional area of the second curved portion, and one end of the second clamping member is disposed opposite to an end face of the second curved portion beyond the chamfered portion.

In an embodiment, the first clamping portion includes a clamping block protruding from the surface of the first bending portion, a clamping surface and an avoiding surface, the clamping surface and the avoiding surface are obliquely intersected, the clamping surface and the surface of the first bending portion are obliquely intersected, and a first clamping portion is formed between the clamping surface and the second clamping member.

In an embodiment, the length of the first bend is greater than or equal to the length of the second bend.

In an embodiment, the second clamping piece comprises a clamping main body, a third clamping part protruding out of the end part of the clamping main body and a convex block protruding out of the side wall of the clamping main body, the convex block abuts against the first clamping piece and is far away from the convex clamping rib, the first locking component is located between the convex block and the third clamping part, and the first clamping part is formed between the third clamping part and the first clamping piece.

In an embodiment, the locking direction of the first locking member is parallel to the extending direction of the second clamping portion, and the locking direction of the second locking member is parallel to the extending direction of the first clamping portion.

In one embodiment, the first locking assembly includes a locking bolt inserted into the first and second clamping members and a locking nut connected to the locking bolt.

After adopting the structure, compared with the prior art, the utility model has the advantages that: the corner joint connects two adjacent cross-spanning section bars and realizes the span connection in space to form a reinforced frame structure and improve the connection and combination tightness between the section bars. The corner joint is folded to clamp and lock the section bar, and the section bar is convenient to fix and dismantle.

Drawings

The utility model is further illustrated with reference to the following figures and examples:

fig. 1 is a perspective view of a corner joint of the present invention.

Fig. 2 is a schematic structural diagram of the corner joint connecting two profiles according to the present invention.

Fig. 3 is an exploded view of the corner fitting of the present invention.

Fig. 4 is a schematic structural view of the first clamping member of the present invention.

Fig. 5 is a schematic structural view of a second clamping member of the present invention.

In the figure: a first tubular profile 10; a corner joint 20; a first clamp 21; the first curved portion 211; a second curved portion 212; a first engaging portion 213; a clamping face 2131; an avoidance surface 2132; a clamp block 2133; a second clip portion 214; a chamfered portion 215; a second clamp 22; a clamp main body 221; a bump 222; the third engaging portion 223; a third clamp 23; a first locking assembly 24; a locking bolt 241; a lock nut 242; a second locking assembly 25; a first clamping portion 26; a second clamping portion 27; a second tubular profile 30; a tube body 31; the convex rib 32 is clamped; an arc-shaped curved surface 321; a first clamping surface 322; a second engagement surface 323.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

See fig. 1-3 for: the utility model discloses a corner joint 20 for connecting spatially staggered profiles, which is characterized in that the corner joint 20 is used for connecting two profiles in different planes so as to ensure that the two profiles are mutually supported and connected, and the two profiles are respectively defined as a first tubular profile 10 and a second tubular profile 30 for the convenience of distinguishing.

The corner fitting 20 comprises a first clamp 21, a second clamp 22, a third clamp 23, a first locking assembly 24 lockingly connecting the first clamp 21 and the second clamp 22, and a second locking assembly 25 lockingly connecting the first clamp 21 and the third clamp 23, the first clamp 21 being at least partially curved. The first clamping piece 21 and the second clamping piece 22 are folded to form a first clamping part 26 in a chute shape, the first clamping piece 21 and the third clamping piece 23 are folded to form a second clamping part 27 in the chute shape, and the first clamping part 26 and the second clamping part 27 are respectively positioned at two ends of the first clamping piece 21. The two parts of the first clamp 21 and the second clamp 22 are assembled together to clamp the profile. The first clamping part 26 is a clamping groove structure formed by folding the first clamping piece 21 and the second clamping piece 22, and the second clamping part 27 is a clamping groove structure formed by folding the first clamping piece 21 and the third clamping piece 23. The first clamping part 26 is connected with the peripheral wall of the first tubular section bar 10 in a clamping mode, the first tubular section bar 10 can be adjusted in a moving mode along the corner joint 20, and similarly, the second clamping part 27 is connected with the second tubular section bar 30 in a clamping mode, and the first tubular section bar and the second tubular section bar 30 are distributed at intervals and are not located in the same plane. The first tubular section bar 10 and the second tubular section bar 30 are distributed in a vertically staggered manner, and the first clamping part 26 and the second clamping part 27 are arranged back to back so as to respectively clamp the two section bars distributed vertically, so that the connecting effect is good.

Projections of the first clamping portion 26 and the second clamping portion 27 on a parallel plane, which is a plane parallel to the extending direction of the first clamping portion 26 and the extending direction of the second clamping portion 27, intersect. The extending direction of the first clamping part 26 is the length direction of the first tubular section bar 10, the extending direction of the second clamping part 27 is the length direction of the second tubular section bar 30, and the parallel plane is parallel to the first tubular section bar 10 and the second tubular section bar 30. The projections of the first clamping portion 26 and the second clamping portion 27 on the parallel plane intersect, and the intersection angle of the two can be adaptively adjusted according to the applied scene, for example, the intersection angle of the first clamping portion 26 and the second clamping portion 27 is set to be 45 degrees to 90 degrees, specifically, 45 degrees, 60 degrees, 90 degrees, and other intersection angles. When the intersection angle is 90 degrees, the projections of the first clamping portion 26 and the second clamping portion 27 on the parallel plane are perpendicular.

The corner joints 20 connect two adjacent cross-spanning profiles to form a reinforced frame structure, thereby improving the tightness of connection and combination between the profiles. The fittings of the corner joint 20 are folded one by one to clamp and lock the section bars, and the section bars are convenient to fix and remove.

See fig. 3-5 for illustration: the first clamping member 21 includes a first curved portion 211, a second curved portion 212 perpendicular to the first curved portion 211, a first catching portion 213 protruding from an end of the first curved portion 211, and a second catching portion 214 protruding from an end of the second curved portion 212. The first clamping member 21 is an integral aluminum alloy casting, wherein the first bending portion 211 and the second bending portion 212 are part of the first clamping member 21 and are distributed in the first clamping member 21 in a vertical posture.

The second clamping piece 22 and the first bending part 211 are locked together by the first locking component 24 and form a first clamping part 26 with the first clamping part 213, and the third clamping piece 23 and the second bending part 212 are locked together by the second locking component 25 and form a second clamping part 27 with the second clamping part 214. The first 21, second 22 and third 23 clamping members are complementary shaped structural members to form a closed clamping structure to clamp the first 10 and second 30 tubular profiles, respectively. Correspondingly, the first clamping member 21 is similar to an "L" shaped structure, and the first clamping portion 213 and the second clamping portion 214 are respectively located at two ends of the first clamping member 21 to clamp the first tubular section 10 and the second tubular section 30 with spatially offset distribution. Optionally, the first tubular profile 10 is perpendicular to the first bend 211 and the second tubular profile 30 is perpendicular to the second bend 212. The first and second curved portions 211 and 212 extend in different directions, respectively, to fit the first and second tubular profiles 10 and 30 at different pitches. Optionally, the length of the first bend 211 is greater than or equal to the length of the second bend 212 to enable the connection of different span profiles.

Further, the first clamping member 21 further includes a chamfered portion 215 connecting the first curved portion 211 and the second curved portion 212, and the chamfered portion 215 is provided in an arc-shaped curved structure or a linear structure to connect the first curved portion 211 and the second curved portion 212. The area of the intersection of the chamfered portion 215 and the second curved portion 212 is smaller than the cross-sectional area of the chamfered portion 215, and one end of the third holder 23 is disposed opposite to the end face of the chamfered portion 215 beyond the second curved portion 212. The sectional shape of the chamfered portion 215 is different from that of the second curved portion 212, and the both have a step surface at a meeting position, which is an end surface of the chamfered portion 215. The end face is used for limiting the maximum installation position of the third clamping piece 23, and the positioning effect is good. And a gap structure is formed between the second bending part 212 and the chamfer part 215, so that the third clamping piece 23 can be accommodated, and the appearance is attractive. Alternatively, the chamfered portion 215 is an extension of the first curved portion 211, and has the same cross-sectional shape as the first curved portion 211.

Further, the area of the intersection of the chamfered portion 215 and the second curved portion 212 is smaller than the cross-sectional area of the second curved portion 212, and one end of the second clip 22 is disposed opposite to the end surface of the second curved portion 212 beyond the chamfered portion 215. The chamfered portion 215 has the same cross-sectional shape as the first curved portion 211, the chamfered portion 215 has a cross-sectional shape different from the second curved portion 212, and the chamfered portion 215 and the second curved portion 212 have a step surface, which is an end surface of the second curved portion 212, at a meeting position. The end face is used for limiting the maximum installation position of the second clamping piece 22, and the positioning effect is good. Moreover, a gap structure is formed among the first bending part 211, the chamfered part 215 and the second bending part 212, so that the second clamping piece 22 can be accommodated, and the appearance is attractive.

The first clamping portion 213 and the second clamping portion 214 are clamped to connect the connecting profile structure, and the structure and function of the first clamping portion 213 and the second clamping portion are approximately the same, and the first clamping portion 213 is taken as an example for illustration. The first clip portion 213 includes a holding block 2133 protruding from the surface of the first curved portion 211, a holding surface 2131 provided on the holding block 2133, and an escape surface 2132, the holding surface 2131 obliquely intersects with the surface of the first curved portion 211, and a first holding portion 26 is formed between the holding surface 2131 and the second holding member 22. The second clamping member 22 is disposed on the symmetrical rib structures of the first clamping portion 213. The first clamping portion 213 protrudes from the end of the first bending portion 211 in a rib shape, so that the corner connector 20 is clamped on the clamping convex rib 32 on the outer circumferential wall of the first tubular section 10. First joint portion 213 and second holder 22 adaptation periphery wall and the shape of joint protruding muscle 32 of first tubular section bar 10 to make corner joint 20 can move along joint protruding muscle 32 and can be fixed in on first tubular section bar 10 after first locking Assembly 24 locks again.

Optionally, the first clamping portion 213 includes a clamping block 2133 protruding from the surface of the first bending portion 211, a clamping surface 2131 provided on the clamping block 2133, and an avoiding surface 2132, the clamping surface 2131 obliquely intersects with the surface of the first bending portion 211, and a first clamping portion 26 is formed between the clamping surface 2131 and the second clamping member 22. The clamping block 2133 protrudes the second end of the first bending part 211 in a rib shape and is inclined with respect to the central line of the recess to form an inclined rib structure. The clamping surface 2131 is a clamping block 2133 used for clamping and limiting a joint surface of the clamping convex rib 32, wherein the clamping surface 2131 is matched with a side wall surface of the clamping convex rib 32. When the side wall surface of the clamping convex rib 32 is an inward concave inclined surface, the clamping block 2133 is clamped on the clamping convex rib 32, and can avoid separating from the clamping convex rib 32 along the radial direction of the first tubular section 10, so that the combination tightness is improved. The clamping surface 2131 and the second clamping piece 22 are oppositely arranged to form a clamping part, and the clamping effect is good.

The avoiding surface 2132 is located at an end of the clamping block 2133 and is used for avoiding an interference part between the clamping block 2133 and the first tubular profile 10 in the clamping process. Specifically, the avoiding surface 2132 is arranged opposite to the surface of the first tubular profile 10 when the first clamping piece 21 is clamped on the clamping convex rib 32 of the first tubular profile 10, so as to reduce the clamping gap between the clamping block 2133 and the first tubular profile 10. Optionally, the relief surface 2132 and the surface of the first tubular profile 10 are matched to each other to reduce the active space of the clamping block 2133.

See fig. 1-5 for illustration: the second tubular section bar 30 comprises a tubular body 31 in a circular tubular shape and a clamping convex rib 32 protruding from the surface of the tubular body 31, and the extending direction of the clamping convex rib 32 is parallel to the central line of the tubular body 31. Optionally, the second tubular section 30 is made of an aluminum alloy material to form an integrally formed structure with high overall strength and light weight.

Alternatively, the locking rib 32 includes an arc-shaped curved surface 321, a first locking surface 322 intersecting one end of the arc-shaped curved surface 321, and a second locking surface 323 intersecting the other end of the arc-shaped curved surface 321, and the first locking surface 322 intersects the surface of the pipe body 31 and is inclined with respect to the radial direction of the pipe body 31. The second engagement surface 323 intersects the surface of the tubular body 31 and is inclined with respect to the radial direction of the tubular body 31. The locking rib 32 extends along the length of the tube 31 to form a strip-shaped rib structure. The curved surface 321 is curved to reduce material consumption and improve the overall strength of the second tubular section 30. Optionally, the center line of the curved surface 321 coincides with the center line of the pipe body 31, so that the clamping rib 32 has an attractive appearance and is adapted to the structure of the pipe body 31.

The first clamping surface 322 and the second clamping surface 323 form two side walls of the clamping rib 32, so that the corner joint 20 can be clamped between the first clamping surface 322 and the second clamping surface 323 respectively to connect the corner joint 20 with the second tubular profile 30. The first and second catching surfaces 322 and 323 are inclined with respect to a radial line of the pipe body 31, that is, an arc length of the curved arc surface 321 is greater than a first arc length between a first intersection line where the first catching surface 322 intersects the pipe body 31 and a second intersection line where the second catching surface 323 intersects the pipe body 31. The corner connector 20 is clamped on the clamping convex rib 32, so that the corner connector 20 is prevented from being separated from the clamping convex rib 32 along the radial direction of the pipe body 31, and the clamping strength is high.

The second clamping member 22 includes a clamping main body 221, a third clamping portion 223 protruding from an end of the clamping main body 221, and a protrusion 222 protruding from a sidewall of the clamping main body 221, wherein the protrusion 222 abuts against the first clamping member 21 and is away from the clamping rib 32. The first locking member 24 is located between the protrusion 222 and the third catching portion 223, and the first clamping portion 26 is formed between the third catching portion 223 and the first clamping member 21. The third catching portion 223 is disposed opposite to the first catching portion 213, thereby forming the first clamping portion 26. The protrusion 222 protrudes out of the sidewall of the clamping main body 221 and is far away from the third clamping portion 223, so that when the first locking component 24 locks the first clamping member 21 and the second clamping member 22, the clamping force acts on the third clamping portion 223 and the first clamping portion 213, and the stability and reliability of clamping are improved.

Wherein the locking direction of the first locking member 24 is parallel to the extending direction of the second clamping portion 27, and the locking direction of the second locking member 25 is parallel to the extending direction of the first clamping portion 26. Alternatively, the locking direction of the first locking member 24 is parallel to the parallel plane and the locking direction of the first locking member 24 is parallel to the parallel plane, so that the first locking member 24 clamps the profile from the side of the first clamping member 21 and the second clamping member 22, the operation space is large and does not interfere with the clamping of the profile by the first clamping portion 26 and the second clamping portion 27. Specifically, the first locking assembly 24 includes a locking bolt 241 penetrating and connecting the first clamping member 21 and the second clamping member 22, and a locking nut 242 connected to the locking bolt 241, and a locking direction of the locking bolt 241 and the locking nut 242 obliquely intersects an extending direction of the first clamping portion 26. The locking bolt 241 is inserted through the locking hole to be locked to the locking nut 242. The locking nut 242 is attached to one of the first clamping member 21 and the second clamping member 22, and the locking bolt 241 is attached to the other.

It should be noted that the connection clamping manner between the third clamping member 23 and the first clamping member 21 is similar to the connection clamping manner between the second clamping member 22 and the first clamping member 21, and it can be understood by referring to the above embodiments, and the description thereof is omitted. Optionally, the corner joint 20 can also be used in combination with other cross joints to increase the strength of the connection of the first tubular profile 10 and the second tubular profile 30.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. Other structures and principles are the same as those of the prior art, and are not described in detail herein.

Claims (10)

1. The utility model provides a corner connects for connecting space dislocation section bar which characterized in that: the corner joint comprises a first clamping piece, a second clamping piece, a third clamping piece, a first locking assembly and a second locking assembly, wherein the first locking assembly and the second locking assembly are in locking connection with the first clamping piece and the second clamping piece, the first clamping piece is at least partially bent, the first clamping piece and the second clamping piece are folded to form a first clamping portion in a chute shape, the first clamping piece and the third clamping piece are folded to form a second clamping portion in the chute shape, the first clamping portion and the second clamping portion are respectively located at two ends of the first clamping piece, the first clamping portion and the second clamping portion are intersected in projection on a parallel surface, and the parallel surface is a plane parallel to the extending direction of the first clamping portion and the extending direction of the second clamping portion.

2. The corner fitting of claim 1, wherein: the projections of the first clamping part and the second clamping part on the parallel surfaces are vertical.

3. The corner fitting of claim 1, wherein: first holder include first flexion, with first flexion vertically second flexion, certainly the first joint portion of tip convex of first flexion and certainly the convex second joint portion of tip of second flexion, the second holder with first flexion passes through first locking subassembly locking fold and with form first clamping part between the first joint portion, the third holder with the second flexion passes through second locking subassembly locking fold and with form the second clamping part between the second joint portion.

4. The corner fitting of claim 3, wherein: the first clamping piece further comprises a chamfering part connected with the first bending part and the second bending part, the area of the intersection part of the chamfering part and the second bending part is smaller than the cross-sectional area of the chamfering part, and one end of the third clamping piece is opposite to the end face of the third clamping piece, and the chamfering part exceeds the second bending part.

5. The corner fitting of claim 4, wherein: the area of the intersection part of the chamfering part and the second bending part is smaller than the cross-sectional area of the second bending part, and one end of the second clamping piece is opposite to the end face of the second bending part, which exceeds the chamfering part.

6. The corner fitting of claim 3, wherein: first joint portion include certainly the convex grip block in surface of first flexion, locate the grip surface of grip block and dodge the face, the grip surface with it is crossing to dodge the face slope, the grip surface with the surface slope of first flexion is crossing, the grip surface with form first clamping part between the second holder.

7. The corner fitting of claim 3, wherein: the length of the first bend is greater than or equal to the length of the second bend.

8. The corner fitting of claim 1, wherein: the second clamping piece comprises a clamping main body and a protruding portion, the third clamping portion is arranged at the end portion of the clamping main body, the protruding portion protrudes out of the side wall of the clamping main body, the protruding portion abuts against the first clamping piece and is far away from the third clamping portion, the first locking assembly is located between the protruding portion and the third clamping portion, and the first clamping portion is formed between the first clamping piece and the third clamping portion.

9. The corner fitting of claim 1, wherein: the locking direction of the first locking component is parallel to the extending direction of the second clamping part, and the locking direction of the second locking component is parallel to the extending direction of the first clamping part.

10. The corner fitting of claim 9, wherein: the first locking assembly comprises a locking bolt and a locking nut, the locking bolt is connected with the first clamping piece and the second clamping piece in a penetrating mode, and the locking nut is connected to the locking bolt.

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