CN215567107U - Connecting joint and connecting device for connecting special-shaped pipes - Google Patents

Abstract

The utility model discloses a connecting joint for connecting special-shaped pipes, which comprises a first clamping piece, a second clamping piece and a locking assembly, wherein the first clamping piece and the second clamping piece are folded to form a blind hole-shaped clamping hole and a groove-shaped clamping part. The center line direction of the clamping hole is intersected with the extending direction of the clamping part, and the clamping hole comprises a first limiting surface and a second limiting surface which are arranged mutually. The clamping hole is provided with a first limiting surface and a second limiting surface which are oppositely arranged, so that the profile is limited by clamping, and the convenience and the flexibility of profile installation are improved.

Description

Connecting joint and connecting device for connecting special-shaped pipes

Technical Field

The utility model relates to the technical field of connecting devices, in particular to a connecting joint and a connecting device for connecting special-shaped pipes.

Background

The tubular section bar is used for building a material frame to form a frame type material frame. Wherein, the built material shelf is required to be provided with a clapboard to bear materials. However, the two intersecting profiles are connected by a connecting joint to form a frame-type structure.

The type of the section bar with the frame type structure can be adjusted according to different use scenes, for example, the section bar at the edge supporting part of the material frame adopts a round tubular section bar with a connecting convex rib on the surface and a flat tubular section bar for separation. Different tubular section bars are combined for use, so that the flexibility of assembling the material rack is improved, and resources are reasonably distributed. However, the existing connecting joints cannot correspondingly connect two tubular profiles with different shapes, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a connection joint and a connection device for connecting special-shaped pipes.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a connector lug for connecting special-shaped tubular product, connector lug includes first holder, with the second holder that first holder matches, and the locking Assembly who locks and connect first holder and second holder, first holder folds the centre gripping hole that forms blind hole form and the clamping part of recess form with the second holder, the central line direction in centre gripping hole with the extending direction of clamping part is crossing, the centre gripping hole is including the first spacing face and the spacing face of second that set up each other.

In an embodiment, the first position-limiting surface and the second position-limiting surface are configured as planes parallel to each other, and the first position-limiting surface is parallel to the extending direction of the clamping portion.

In one embodiment, a first distance between the first and second limiting surfaces is smaller than a second distance between two opposite sides of the first limiting surface.

In an embodiment, the first clamping piece comprises a main body part, a locking hole penetrating through the main body part, a concave part formed by the surface of the main body part in a concave mode, and a clamping part protruding from the end part of the main body part, the first limiting surface is located at the bottom of the concave part, a clamping hole is formed between the concave part and the second clamping piece, a clamping part is formed between the clamping part and the second clamping piece, and the locking assembly is connected to the locking hole in a plugging mode.

In one embodiment, the first clamping member includes at least one abutment boss formed to partially protrude from a surface of the main body portion, the abutment boss abutting the second clamping member and forming at least one clamping plate slot.

In an embodiment, the abutting boss extends from the clamping portion to the recess, and the locking hole penetrates through the abutting boss.

In one embodiment, the main body portion includes a reinforcing region, a thin-wall region, and a connecting region connecting the reinforcing region and the thin-wall region, the sectional size of the reinforcing region is larger than that of the thin-wall region, the recessed portion is disposed in the thin-wall region and extends to the connecting region, and the clamping portion is located in the reinforcing region.

In one embodiment, the first clamping member and the second clamping member are symmetrically arranged.

The utility model also discloses a connecting device which comprises the first tubular section, the second tubular section and the connecting joint, wherein the first tubular section is connected with the clamping hole in an inserting manner, and the first clamping piece and the second clamping piece clamp and fix the second tubular section through the clamping part.

In an embodiment, the connecting device further comprises a plate-shaped first plate, and the first clamping piece and the second clamping piece clamp and fix the first plate.

After adopting the structure, compared with the prior art, the utility model has the advantages that: the first clamping piece and the second clamping piece are clamped and folded to form a clamping hole and a clamping part which are respectively connected with the two profiles, and the two profiles connected with the connecting joint are intersected. The clamping hole is provided with a first limiting surface and a second limiting surface which are oppositely arranged, so that the profile is limited by clamping, and the convenience and the flexibility of profile installation are improved.

Drawings

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

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

Fig. 2 is a perspective view of the first clamping member of the present invention.

Fig. 3 is a schematic view of the structure of the connecting device of the present invention.

Fig. 4 is a schematic view of an exploded structure of the connecting device of the present invention.

Fig. 5 is a schematic cross-sectional structure of a first tubular profile of the present invention.

In the figure: a first tubular profile 10; a tube body 11; clamping the convex rib 12; an arc-shaped curved surface 121; a first clamping surface 122; a second clamping surface 123; a connection joint 20; a first clamp 21; a main body portion 211; a reinforced region 2111; thin-wall region 2112; a connection region 2113; a recessed portion 212; a clip portion 213; a clamping face 2131; an avoidance surface 2132; a clamp block 2133; a locking hole 214; an abutment boss 215; a second clamp 22; a locking assembly 23; the bolt members 231; a nut member 232; a clamping hole 24; a first limiting surface 241; a second limiting surface 242; a clamping portion 25; a first cleat groove 26; a second clamping plate groove 27; a first sheet 30; a second tubular profile 40.

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 connecting joint 20, and the connecting joint 20 is used for connecting two tubular sectional materials with different cross-sectional shapes. Wherein the connection joint 20 is connected with the first tubular section bar 10 in a plug-in assembly manner, and the connection joint 20 is connected with the second tubular section bar 40 in a clamping manner, so that the connection joint 20 can be connected to different positions of the second tubular section bar 40.

The connection joint 20 includes a first clamping member 21, a second clamping member 22 matching the first clamping member 21, and a locking assembly 23 for lockingly connecting the first clamping member 21 and the second clamping member 22. The first and second clamps 21 and 22 are folded together to form a clamping connection structure, and the locking assembly 23 locks the two together to clamp and fix the first and second tubular profiles 10 and 40. The first clamping piece 21 and the second clamping piece 22 are folded to form a blind hole-shaped clamping hole 24 and a groove-shaped clamping part 25, and the central line direction of the clamping hole 24 is crossed with the extending direction of the clamping part 25. One end of the first tubular section bar 10 is inserted or clamped in the clamping hole 24, and the clamping part 25 is clamped on the outer peripheral wall of the second tubular section bar 40 so as to adjust the relative positions of the first tubular section bar 10 and the second tubular section bar 40. Further, the clamping hole 24 includes a first limiting surface 241 and a second limiting surface 242 which are disposed mutually, and the first limiting surface 241 and the second limiting surface 242 are symmetrical or have a difference. For example, the first limiting surface 241 and the second limiting surface 242 are provided as planes parallel to each other, and the first limiting surface 241 is parallel to the extending direction of the clamping portion 25, so that the planes define the rotational freedom of the first tubular profile 10. Accordingly, the first tubular profile 10 is configured as a flat tubular structure to reduce the height. For example, the first tubular profile 10 is configured as a rectangular tube, a profile with opposing parallel wall surfaces, or the like.

Optionally, the first limiting surface 241 and the second limiting surface 242 are configured as a curved surface or a plane surface to form a non-circular tubular profile. In an alternative embodiment, the first position-limiting surface 241 and the second position-limiting surface 242 are configured as planes parallel to each other, and the first position-limiting surface 241 is parallel to the extending direction of the clamping portion 25. The holding hole 24 is configured by arranging a first stopper surface 241 and a second stopper surface 242 parallel to each other, thereby constituting a flat hole structure. The tubular section to which the holding hole 24 can be connected is configured as a tubular section having a plane, and the tubular section includes a first mounting surface corresponding to the first stopper surface 241, a second mounting surface corresponding to the second stopper surface 242, and a plane or curved surface connecting the first mounting surface and the second mounting surface. Further, a first distance between the first limiting surface 241 and the second limiting surface 242 is smaller than a second distance between two opposite sides of the first limiting surface 241. First tubular section bar 10 is configured to the flat structure, and when first tubular section bar 10 was connected to second tubular section bar 40 through attach fitting 20, the installation thickness of first tubular section bar 10 was little, and kept stronger structural strength, and bulk strength is high, and the material frame of adaptation is level and smooth, and subregion is effectual.

In one embodiment, the first clamping member 21 and the second clamping member 22 are symmetrically arranged to make the structure of the connection joint 20 uniform and to fit the first tubular section bar 10 with a symmetrical structure, so as to improve the compatibility of use and the reliability of assembly. The structure of the first clamping member 21 is taken as an example for illustration, and the second clamping member 22 can be understood by referring to the structure of the first clamping member 21, which is not described herein again.

See fig. 1 and 2 for illustration: the first clamping member 21 includes a main body portion 211, and the main body portion 211 is a main body of the first clamping member 21 and has a block structure. Optionally, the body portion 211 is provided with a groove structure to reduce weight reduction material. The first clamping member 21 is provided with a locking hole 214 penetrating through the main body portion 211, and the locking assembly 23 is inserted into the locking hole 214 to lock and fix the first clamping member 21 and the second clamping member 22 to form a detachable connection joint 20 structure. Alternatively, the number of the locking holes 214 may be configured to be one or more. Optionally, the locking aperture 214 is configured as a counterbore configuration, wherein the large aperture portion is configured as a hexagon to define a planar surface of the locking assembly 23 and the small aperture portion is configured as a circular aperture. Optionally, locking hole 214 is located in a middle region of body portion 211. Specifically, the locking assembly 23 includes a bolt member 231 and a nut member 232, and the bolt member 231 is inserted through the locking hole 214 and is lockingly coupled to the nut member 232 mounted to the second clamping member 22.

Further, the first clamping member 21 includes a concave portion 212 formed by being concave from the surface of the main body portion 211 and a clamping portion 213 protruding from the end of the main body portion 211, and the first limiting surface 241 is located at the bottom of the concave portion 212. The concave portion 212 and the second holding member 22 form a holding hole 24 therebetween, and the engaging portion 213 and the second holding member 22 form a holding portion 25 therebetween.

The recess 212 is a notch-shaped groove structure, partially recessed from the surface of the main body 211 and extending from the first end to the second end. When the first clamping piece 21 and the second clamping piece 22 are folded, a clamping hole 24 is formed between the concave part 212 and the corresponding groove structure of the second clamping piece 22, and the clamping hole 24 is matched with the shape of the outer peripheral wall of the first tubular profile 10 to clamp and fix the first tubular profile 10. For example, the first limiting surface 241 is located at the bottom of the concave portion 212, and the concave portion 212 is further provided with arc wall surfaces extending from two sides of the first limiting surface 241, so as to clamp and fix a smooth shaft-shaped or reinforced tubular structural profile.

Further, the main body portion 211 includes a reinforcing region 2111, a thin-walled region 2112, and a connecting region 2113 connecting the reinforcing region 2111 and the thin-walled region 2112, and the sectional size of the reinforcing region 2111 is larger than the sectional size of the thin-walled region 2112. The recessed portion 212 is disposed in the thin-wall portion 2112 and extends to the connection portion 2113, and the engaging portion 213 is disposed in the reinforced portion 2111. The thickness dimensions of the reinforcing region 2111 and the thin-wall region 2112 are different, so that the section dimension of the second tubular section 40 connected with the clamping portion 213 is larger than the section dimension of the first tubular section 10 fixed by the thin-wall region 2112, the material cost of the connecting joint 20 can be reduced, and the attractiveness of the connecting joint 20 can be improved. The locking holes 214 extend through the reinforced regions 2111 to take full advantage of the structural strength characteristics of the reinforced regions 2111.

Further, the first clamping member 21 includes at least one abutment projection 215 formed to partially protrude from the surface of the body portion 211, and the abutment projection 215 abuts against the second clamping member 22 and forms at least one clamping groove. The abutment boss 215 protrudes from the main body portion 211 and abuts against the second clamping member 22, so that the main body portion 211 and the second clamping member 22 are spaced apart to form a groove-shaped clamping plate groove. The clamping plate groove is used for clamping and fixing the plate-shaped plate so as to match with the material frame structure of the first tubular section bar 10 component with the supporting plate. Alternatively, the first clamping member 21 and the second clamping member 22 are folded to form a single clamping plate groove structure, namely, a first clamping plate groove 26, which is used for clamping the plate material on one side. The connection tabs 20 may be applied to the edge region of the product shelf to maintain the flatness of the outer surface of the product shelf. Optionally, the first clamping member 21 and the second clamping member 22 are folded to form a double-sided clamping plate groove structure, namely a first clamping plate groove 26 and a second clamping plate groove 27, for double-sided clamping of the plates, for the plate support reinforcing structure inside the material rack.

In one embodiment, the abutment boss 215 extends from the engagement portion 213 toward the recess 212, and the locking hole 214 penetrates the abutment boss 215. The abutting boss 215 is in an elongated structure to separate the first and second clip grooves 26 and 27 and form a continuous support structure, and the connection strength is high. The locking hole 214 extends through the abutment boss 215 to provide a balanced and tight locking of the clamping connection of the first and second clamping members 21, 22.

In one embodiment, the clamping portion 213 protrudes from the end of the main body 211 in a rib shape, so that the connector 20 is clamped on the clamping rib of the outer peripheral wall of the second tubular section 40. The end of the clamping portion 213 is adapted to the outer peripheral wall of the second tubular section bar 40 and the shape of the clamping rib, so that the connecting joint 20 can move along the clamping rib and can be fixed on the second tubular section bar 40 after being locked by the locking assembly 23.

Alternatively, the clip portion 213 includes a clip block 2133 bent from the body portion 211, a clip surface 2131 positioned at a free end of the clip block 2133, and an escape surface 2132, the clip surface 2131 and the escape surface 2132 obliquely intersect with each other, and a clip portion 25 is formed between the clip surface 2131 and the second clip 22.

The clip block 2133 protrudes from the second end of the main body portion 211 in a rib shape and is inclined with respect to the center line of the recess 212 to form an inclined rib structure. The clamping surface 2131 is a combination surface of the clamping block 2133 used for clamping and limiting the clamping convex rib, wherein the clamping surface 2131 is matched with the side wall surface of the clamping convex rib. When the side wall surface of the clamping convex rib is set to be an inward concave inclined surface, the clamping block 2133 is clamped on the clamping convex rib, the radial separation of the clamping convex rib and the second tubular section bar 40 can be avoided, and the tightness of the combination is improved. The clamping surface 2131 is arranged opposite to the second clamping piece 22 to form a clamping part 25, 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 in the clamping process of the clamping block 2133 and the second tubular profile 40. Specifically, the avoiding surface 2132 is arranged opposite to the surface of the second tubular profile 40 when the first clamping piece 21 is clamped on the clamping convex rib of the second tubular profile 40, so that the clamping gap between the clamping block 2133 and the second tubular profile 40 is reduced. Optionally, the relief surface 2132 and the surface of the second tubular profile 40 are matched to each other to reduce the space available for movement of the clamping block 2133.

See fig. 1-5 for illustration: the connection joint 20 disclosed in the above embodiment is applied to a connection device which is a part of the structure of the material shelf. The connecting device comprises a first tubular section bar 10, a second tubular section bar 40 and a connecting joint 20 disclosed in the above embodiment, wherein the first tubular section bar 10 is connected to the clamping hole 24 in an inserting manner, and the first clamping piece 21 and the second clamping piece 22 clamp and fix the second tubular section bar 40 through the clamping part 25. Further, when the connection joint 20 is provided with one or two clamping grooves, the connection device further includes a plate-shaped first plate 30, and the first clamping member 21 and the second clamping member 22 clamp and fix the first plate 30.

Specifically, the first plate 30 and the second plate are separated by the first tubular section 10 and are connected to the second tubular section 40 together by the connecting joint 20, so as to improve the convenience of the connecting device, and the first plate 30 and the second plate are convenient to connect and install and have strong bearing performance. Optionally, the first and second cleat grooves 26, 27 are symmetrically disposed to equalize the forces on both sides of the connection joint 20. The first clamping plate groove 26 extends from the hole end face of the clamping hole 24 to the clamping portion 25, the second clamping plate groove 27 extends from the hole end face of the clamping hole 24 to the clamping portion 25, and the first clamping plate groove 26 and the second clamping plate groove 27 are arranged back to back.

Optionally, the first tubular profile 10 is configured with a first groove and a second groove, the first tubular profile 10 is connected to the clamping hole 24 in an inserting manner, and the first clamping piece 21 and the second clamping piece 22 clamp and fix the second tubular profile 40. Optionally, the second tubular profile 40 is configured with a curved surface, the edge of the first sheet 30 being defined by the first groove and the first cleat groove 26, and the edge of the second sheet being defined by the second groove and the second cleat groove 27. Optionally, the second tubular profile 40 is provided with a third groove. The edges of the first plate 30 and the edges of the second plate are defined in the third grooves to further improve the support stability of the first plate 30 and the second plate. The first clamping plate groove 26 is a groove structure and is disposed on the outer circumferential wall of the connecting joint 20, when the connecting joint 20 connects the first tubular profile 10 and the second tubular profile 40, the first groove, the first clamping plate groove 26 and the third groove are located on the same plane, and the edge of the first plate 30 is limited in the first groove, the first clamping plate groove 26 and the third groove, so as to transmit the bearing force borne by the first plate 30 to the first tubular profile 10, the connecting joint 20 and the second tubular profile 40.

The first clip groove 26 is located at the folded portion of the first clip 21 and the second clip 22 and is recessed toward the center line of the clip hole 24. The first clamping piece 21 and the second clamping piece 22 clamp the first plate 30 in a folded mode, and convenience in assembly of the first plate 30 is improved. The first plate 30 is fixed under the clamping action of the first clamping piece 21 and the second clamping piece 22, and the strength and reliability of connection and fixation of the first plate 30 are improved.

The two sides of the connecting joint 20 respectively clamp a first plate 30 and a second plate, wherein when the width of the notch of the first plate groove 26 is larger than the width of the notch of the second plate groove 27, the thickness of the first plate 30 is larger than that of the second plate, so that the plates assembled by the connecting device have different thicknesses to adapt to different bearing requirements. Alternatively, when the width of the notch of the first clip groove 26 is equal to the width of the notch of the second clip groove 27, then the thickness of the first sheet 30 is equal to the thickness of the second sheet, so as to facilitate the flexible connection of the connecting joint 20 to the second tubular profile 40 without the need to identify directionality.

Further, when the symmetrical bisector of the first clip groove 26 coincides with the symmetrical bisector of the second clip groove 27, the first sheet 30 and the second sheet are in the same plane, so that the height of the bearing surface of the connecting device is consistent. When the symmetrical bisector of the first splint groove 26 and the symmetrical bisector of the second splint groove 27 are parallel to each other and do not coincide with each other, the first sheet 30 has a height difference with respect to the second sheet to adjust the height difference between the bearing surfaces on both sides of the first tubular section 10 to meet different usage scenario requirements.

The second tubular section bar 40 includes a tubular pipe 11 and a clamping rib 12 protruding from the surface of the pipe 11, and the extending direction of the clamping rib 12 is parallel to the central line of the pipe 11. Optionally, the first tubular section 10 is made of an aluminum alloy material to form an integrally formed structure, and has high overall strength and light weight. The first groove is formed in the clamping convex rib 12, so that the first tubular section 10 connected with the connecting joint 20 and the first tubular section 10 installed on the first groove are located on the same plane, the edges of multiple sides of the plate can be fixed, and convenience in plate installation is improved.

Alternatively, the locking rib 12 includes an arc-shaped curved surface 121, a first locking surface 122 intersecting to one end of the arc-shaped curved surface 121, and a second locking surface 123 intersecting to the other end of the arc-shaped curved surface 121, and the first locking surface 122 intersects to the surface of the pipe body 11 and is inclined with respect to the radial direction of the pipe body 11. The second engagement surface 123 intersects the surface of the pipe body 11 and is inclined with respect to the radial direction of the pipe body 11, and the first groove is recessed from the curved arc surface 121. The clamping ribs 12 extend along the length direction of the tube body 11 to form a strip-shaped rib structure. The curved surface 121 is curved to reduce material consumption and improve the overall strength of the first tubular section 10. Optionally, the center line of the arc-shaped curved surface 121 coincides with the center line of the pipe body 11, so that the clamping convex rib 12 is attractive in appearance and is adaptive to the structure of the pipe body 11.

The first clamping surface 122 and the second clamping surface 123 form two side walls of the clamping rib 12, so that the connecting joint 20 can be clamped on the first clamping surface 122 and the second clamping surface 123 respectively to connect the connecting joint 20 with the first tubular profile 10. The first clamping surface 122 and the second clamping surface 123 are inclined with respect to a radial line of the pipe body 11, so that an inwardly concave first clamping groove is formed between the first clamping surface 122 and the outer peripheral wall of the pipe body 11, and an inwardly concave second clamping groove is formed between the second clamping surface 123 and the outer peripheral wall of the pipe body 11, that is, an arc length of the arc-shaped curved surface 121 is greater than a first arc length, which is an arc length between a first intersection line where the first clamping surface 122 intersects with the pipe body 11 and a second intersection line where the second clamping surface 123 intersects with the pipe body 11. The clamping of the connector 20 is performed on the clamping convex rib 12 and the first clamping groove and the second clamping groove are buckled, so that the separation of the connector 20 from the clamping convex rib 12 along the radial direction of the pipe body 11 is avoided, and the clamping strength is high.

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 attach fitting for connecting special-shaped tubular product which characterized in that: the connector comprises a first clamping piece, a second clamping piece matched with the first clamping piece and a locking component connected with the first clamping piece and the second clamping piece, the first clamping piece and the second clamping piece are folded to form a blind hole-shaped clamping hole and a groove-shaped clamping part, the central line direction of the clamping hole is intersected with the extending direction of the clamping part, and the clamping hole comprises a first limiting surface and a second limiting surface which are arranged mutually.

2. The connection joint according to claim 1, wherein: the first limiting surface and the second limiting surface are configured to be planes parallel to each other, and the first limiting surface is parallel to the extending direction of the clamping part.

3. The connection joint according to claim 1, wherein: a first distance between the first limiting surface and the second limiting surface is smaller than a second distance between two opposite side edges of the first limiting surface.

4. The connection joint according to claim 1, wherein: first holder includes the main part, runs through the locking hole of main part, certainly the depressed part that the main part surface is sunken to form and certainly the convex joint portion of tip of main part, first spacing face is located the bottom of depressed part, the depressed part with form the centre gripping hole between the second holder, joint portion with form the clamping part between the second holder, locking subassembly plug-in connection in the locking hole.

5. The connection joint according to claim 4, wherein: the first clamping piece comprises at least one abutting boss formed by partially protruding from the surface of the main body part, and the abutting boss abuts against the second clamping piece and forms at least one clamping plate groove.

6. The connection joint according to claim 5, wherein: the butt boss is from joint portion to the depressed part direction extends, the locking hole runs through the butt boss.

7. The connection joint according to claim 4, wherein: the main body part comprises a reinforcing area, a thin-wall area and a connecting area for connecting the reinforcing area and the thin-wall area, the sectional dimension of the reinforcing area is larger than that of the thin-wall area, the concave part is arranged in the thin-wall area and extends to the connecting area, and the clamping part is located in the reinforcing area.

8. The connection joint according to any one of claims 1 to 7, wherein: the first clamping piece and the second clamping piece are symmetrically arranged.

9. A connecting device, comprising a first tubular section bar, a second tubular section bar and the connecting joint according to any one of claims 1 to 8, wherein the first tubular section bar is inserted into the clamping hole, and the first clamping member and the second clamping member clamp and fix the second tubular section bar through the clamping part.

10. The connection device of claim 9, wherein: the connecting device further comprises a plate-shaped first plate, and the first clamping piece and the second clamping piece clamp and fix the first plate.

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