CN216842549U

CN216842549U - Square tube joint

Info

Publication number: CN216842549U
Application number: CN202123077501.4U
Authority: CN
Inventors: 郭雅珑
Original assignee: Taitoh Machinery Shanghai Co ltd
Current assignee: Taitoh Machinery Shanghai Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-28
Anticipated expiration: 2031-12-09

Abstract

The utility model belongs to a pipe connection technical field, a square pipe joint is disclosed, including the connecting piece, the adapter, the connecting piece includes dull and stereotyped connecting portion, dull and stereotyped connecting portion's front end is equipped with opening direction and dull and stereotyped connecting portion vertically U type draw-in groove, dull and stereotyped connecting portion's the other end is equipped with the extension of bending along U type draw-in groove opening direction, the end of extension inwards is equipped with the parallel word buckle with U type draw-in groove, the adapter is including the grafting end, the flange end, the grafting end symmetry is equipped with two U type open slots back to back, the inside symmetry of flange end is equipped with the passageway that can supply the connecting piece to pass through, U type open slot end and passageway UNICOM, be equipped with the screw via hole on the passageway outer wall, be equipped with corresponding screw hole with it on the dull and stereotyped connecting portion, the connecting piece passes through the screw and is fixed with the adapter. The utility model has the advantages of no need of welding in the assembly process, environmental protection, energy saving and convenient assembly and adjustment; the square tubes can be combined and connected in multiple directions on the same plane in the middle, and the connection strength is high; the parts are few, the standardization degree is high, and the method is suitable for batch processing.

Description

Square tube joint

Technical Field

The utility model relates to a pipe connection technical field, concretely relates to square pipe joint.

Background

The square tube is widely used for building various frameworks due to the structural stability and the installability of the square tube. The existing square tube connection method is characterized in that the existing square tube connection method is directly connected in a welding mode, the high strength requirement can be guaranteed, time and labor are consumed in welding and welding line treatment, particularly, when the square tube connection method is used for a framework in a high-precision clean environment, the surface treatment process is more complicated, the environment is not protected and energy is saved, and the subsequent integral assembly is not adjustable; aiming at a large-scale framework needing to be disassembled, a connecting piece is generally welded at a connecting part, a screw hole is preset on the connecting piece, meanwhile, a through hole of a bolt is preset on the square pipe wall, and then the connecting piece is connected and fixed by the bolt; some adapters are adopted for transferring at the end part of the square tube, the adapters are connected in a plugging mode, adapters with multiple specifications need to be prefabricated according to different connection combinations, the adapters have more specifications, the manufacturing cost is higher, and meanwhile, the requirement on high strength is difficult to guarantee; when the square tube needs to be connected in the middle of the square tube in the vertical direction, the square tube needs to be connected by means of the connecting piece, and the square tube cannot be suitable for multi-direction connection of the square tube in the same position.

In summary, the following steps: the technical problems existing in the existing square tube connection are as follows:

1) the traditional welding connection surface treatment process is complicated, the surface is rough, the integral assembly precision is difficult to ensure, and the field operation is inconvenient;

2) by adopting the adapter for switching, the adapter has more specifications, higher manufacturing cost of parts and low connection strength, and can not adapt to a multi-direction square connecting pipe at the same middle position.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an above-mentioned technical problem that current square union exists is solved to aim at, provides a square union now, need not welding process, and the assembly back skeleton surface is clean and tidy pleasing to the eye, adapts to the high accuracy assembly, can be in the multi-direction built-up connection side pipe of middle same position, satisfies the requirement of high strength, and spare part is less, and the standardization level of part is high, is suitable for batch processing.

The utility model provides a technical problem can adopt following technical scheme to realize:

on one hand, the utility model provides a square pipe joint, which comprises a connecting piece and an adapter, wherein the connecting piece comprises a flat connecting part, the front end of the flat plate connecting part is provided with a U-shaped clamping groove with an opening direction vertical to the flat plate connecting part, the other end of the flat plate connecting part is provided with an extending part bent along the opening direction of the U-shaped clamping groove, the tail end of the extension part is inwards provided with a straight buckle parallel to the U-shaped clamping groove, the adapter comprises an inserting end and a flange end, the inserting end is symmetrically provided with two U-shaped open slots which are back to back, the inner part of the flange end is symmetrically provided with a channel for the connecting piece to pass through, the tail end of the U-shaped open slot is communicated with the channel, the outer wall of the channel is provided with a screw through hole, the panel connecting part is provided with a screw hole corresponding to the panel connecting part, and the connecting piece is fixedly connected with the adapter through a screw.

By way of further limitation, the width of the notch of the U-shaped clamping groove is not smaller than the wall thickness of the first square pipe.

By way of further limitation, the width of the U-shaped open slot is not less than the width of the connecting piece.

As a preferable scheme, the screw is a set screw, the set screw passes through the screw through hole and is matched with the screw hole, and the tail end of the set screw is pressed against the inner wall of the channel.

Preferably, the width between the left side surface and the right side surface of the flange end is equal to the side length of the first square pipe.

As a preferred scheme, the inner wall of the channel is provided with an anti-skid groove, and the anti-skid groove is matched with the back bulge of the connecting piece.

As a preferred scheme, a decorative cover is arranged in the screw through hole.

As a preferred scheme, a yielding groove is formed in the joint of the flange end and the inserting end.

As a preferred scheme, the outer edge of the top end of the U-shaped open slot is provided with a chamfer.

Compared with the prior art, owing to adopt above-mentioned technical scheme, the utility model discloses gain following beneficial technological effect:

1) the welding process is not needed, the device is suitable for clean environment installation, convenient to assemble and adjust and suitable for high-precision assembly requirements;

2) the square tube can be combined and connected in the same middle position in multiple directions, the requirement of high strength is met, the number of parts is small, the standardization degree of parts is high, and the square tube is suitable for batch processing

Drawings

Fig. 1 is a schematic cross-sectional view of a first embodiment of the connection state of a first square pipe and a second square pipe of the present invention;

FIG. 2 is a schematic cross-sectional view of a second embodiment of the present invention illustrating a connection state of a first square pipe and a second square pipe;

fig. 3 is a schematic cross-sectional view of the first square tube and the second square tube of the present invention in a disconnected state;

FIG. 4 is a schematic view of the first embodiment of the present invention showing the explosion state of the first square tube and the second square tube;

fig. 5 is a schematic view of the multi-directional connection square pipe in the same plane of the first square pipe according to the first embodiment of the present invention.

The reference numerals include:

1. a connecting member; 2. an adapter; 3. a first square tube; 4. a second square tube; 5. a screw; 6. a decorative cover; 7. a third square tube;

11. a flat plate connecting portion; 12. an extension portion; 13. a protrusion;

21. a plug end; 22. a flange end; 23. an anti-slip groove; 24. a yielding groove;

31. a square hole;

41. straight groove

111. A U-shaped clamping groove; 112. a screw hole;

121. a straight buckle;

211. a U-shaped open slot; 212. chamfering;

221. a channel; 222. passing a hole through the screw;

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2, 3, 4, and 5: a square pipe joint comprises a connecting piece 1 and an adapter 2, wherein the connecting piece 1 comprises a flat plate connecting part 11, the front end of the flat plate connecting part 11 is provided with a U-shaped clamping groove 111 with an opening direction perpendicular to the flat plate connecting part 11, the width of a notch of the U-shaped clamping groove 111 is not smaller than the wall thickness of a first square pipe 3, the other end of the flat plate connecting part 11 is provided with an extending part 12 bent along the opening direction of the U-shaped clamping groove 111, the tail end of the extending part 12 is inwards provided with a straight buckle 121 parallel to the U-shaped clamping groove 111, the adapter 2 comprises an inserting end 21 and a flange end 22, the inserting end 21 is symmetrically provided with two back-to-back U-shaped open grooves 211, the width of the U-shaped open grooves 211 is not smaller than the width of the connecting piece 1, the inside of the flange end 22 is symmetrically provided with a channel 221 through which the connecting piece 1 can pass, and the tail end of the U-shaped open grooves 211 is communicated with the channel 221, the outer wall of the channel 221 is provided with screw through holes 222, the plate connecting portion 11 is provided with screw holes 112 corresponding to the screw through holes, the connecting wall of the first square tube 3 is provided with square holes 31 through which the end portions of the U-shaped clamping grooves 111 can pass, the connecting wall of the second square tube 4 is provided with straight grooves 41 matched with the straight buckles 121, the inserting end 21 is inserted into the end portion of the second square tube 4, the outer edge of the vertical wall of the U-shaped opening groove 211 is tightly pressed on the inner side wall of the second square tube 4, one end of the second square tube 4 is pressed on one end face of the flange end 22, the other end of the flange end 22 is pressed on the connecting wall of the first square tube 3, the plate connecting portion 11 passes through the channel 221, the end portion of the U-shaped clamping groove 111 passes through the square holes 31, the connecting member 1 is lifted, so that one side wall of the square holes 31 is clamped into the U-shaped clamping grooves 111, one side plane of dull and stereotyped connecting portion 11 with an inboard plane laminating of passageway 221, screw hole 112 with the axle center coincidence of screw via hole 222 makes simultaneously a word buckle 121 card is gone into in the word groove 41, first square pipe 3 with second side pipe 4 accomplishes the vertical direction and connects, and after the straightness that hangs down of two square pipes is rectified and is accomplished, connecting piece 1 passes through screw 5 with adapter 2 is connected fixedly. When needing to dismantle, only need loosen screw 5's connection, see through screw via hole 222 inwards pushes away connecting piece 1 makes connecting piece 1 with first side pipe 3 with second side pipe 4 breaks away from the joint, can remove the connection of two square pipes this moment.

Therefore, the square pipe joint provided by the utility model does not need a welding process, is suitable for installation in a clean environment, is convenient to assemble and adjust, is convenient to correct and adjust, and meets the high-precision assembly requirement; when the two square pipes are connected, all connection relations and acting forces only relate to one side face of the first square pipe 3, and when the other three side faces of the square pipe need to be connected with the square pipe, the square pipe is not interfered completely, so that the square pipe can be combined and connected in multiple directions at the same middle position, the number of parts of the square pipe joint is small, the standardization degree of the parts is high, and the square pipe joint is suitable for batch processing by adopting a die.

As shown in fig. 1: as a preferred embodiment, the screw 5 is a set screw, the set screw 5 passes through the screw through hole 222 to be matched with the screw hole 112, the end of the set screw 5 is pressed against the inner wall of the channel 221, and the connecting member 1 and the adapter 2 are connected and fixed by the reaction force of the inner wall of the channel 221 to the set screw 5.

Of course, the connection fixing manner of the connecting piece 1 and the adapter 2 is not limited to this, and as a second embodiment, as shown in fig. 2: 5 one end of screw is equipped with and is used for spacing screwhead, screwhead external dimension is greater than the external diameter of lead screw, 5's lead screw passes screw via hole 222 with screw hole 112 cooperation, 5's screwhead one end of screw compresses tightly on the outer wall of passageway 221, is connected fixedly connecting piece 1 and adapter 2.

As shown in fig. 1, 2, 3, 4, and 5: preferably, the width between the left side surface and the right side surface of the flange end 22 is equal to the side length of the first square pipe 3, so that the pipe fitting can be connected into a whole with stronger feeling while the strength requirement is ensured.

As shown in fig. 1, 2, 3, and 4: preferably, the inner wall of the channel 221 is provided with an anti-slip groove 23, and the anti-slip groove 23 is matched with the back protrusion 13 of the connecting piece 1 to prevent the connecting piece 1 from slipping out of the channel 221 during assembly.

As shown in fig. 1, 4, and 5: as a preferred scheme, the screw through hole 222 is internally provided with the decoration cover 6, and after the assembly is completed, the screw through hole 222 is sealed by the decoration cover 6, so that the cleanliness of the inner parts of the pipe fitting and the square pipe joint is ensured.

It should be noted that, when the second embodiment is used for connection and fixation, when the screw head of the screw 5 is sunk into the screw through hole 222, the decorative cover 6 may be disposed in the screw through hole 222.

As shown in fig. 1, 2, 3, and 4: as a preferable scheme, a yielding groove 24 is formed at the joint of the flange end 22 and the insertion end 21, so that the flange end 22 and the second square pipe 4 can be attached more tightly when being connected.

As shown in fig. 1, 2, 3, and 4: as a preferable scheme, the outer edge of the top end of the U-shaped opening groove 211 is provided with a chamfer 212, so that the insertion end 21 can be inserted into the second square pipe 4 more conveniently.

In summary, it can be seen that: the square pipe joint provided by the utility model has the advantages of no need of welding process, no complex surface treatment process, environmental protection, energy saving, suitability for clean environment installation, convenient assembly and adjustment, and suitability for high-precision assembly; the square tubes can be combined and connected in multiple directions at the same middle position, the requirement of high strength is met, the number of parts is small, the standardization degree of parts is high, and the square tubes are suitable for batch processing.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a square union, its characterized in that: including connecting piece, adapter, the connecting piece includes dull and stereotyped connecting portion, the front end of dull and stereotyped connecting portion be equipped with the opening direction with dull and stereotyped connecting portion vertically U type draw-in groove, the other end of dull and stereotyped connecting portion is equipped with the edge the extension that U type draw-in groove opening direction was bent, the end of extension inwards be equipped with the parallel word buckle of U type draw-in groove, the adapter is including grafting end, flange end, it is equipped with two U type open slots back to peg graft the end symmetry, the inside symmetry of flange end is equipped with and supplies the passageway that the connecting piece passes through, the end of U type open slot with passageway UNICOM, be equipped with the screw via hole on the outer wall of passageway, be equipped with corresponding screw hole with it on the dull and stereotyped connecting portion, the connecting piece pass through the screw with the adapter is connected fixedly.

2. The square pipe joint of claim 1, wherein: the width of the notch of the U-shaped clamping groove is not smaller than the wall thickness of the first square pipe.

3. The square pipe joint of claim 1, wherein: the width of the U-shaped open slot is not less than that of the connecting piece.

4. The square pipe joint of claim 1, wherein: the screw is a set screw, the set screw passes through the screw through hole and is matched with the screw hole, and the tail end of the set screw is pressed on the inner wall of the channel.

5. The square pipe joint of claim 1, wherein: the width between the left side face and the right side face of the flange end is equal to the side length of the first square pipe.

6. The square pipe joint of claim 1, wherein: and the inner wall of the channel is provided with an anti-skid groove, and the anti-skid groove is matched with the back bulge of the connecting piece.

7. The square pipe joint of claim 1, wherein: the screw through hole is internally provided with a decorative cover.

8. The square pipe joint of claim 1, wherein: and a yielding groove is arranged at the joint of the flange end and the inserting end.

9. The square pipe joint of claim 1, wherein: and the outer edge of the top end of the U-shaped open slot is provided with a chamfer.