CN215716033U

CN215716033U - Square pipe connector structure and supporting mechanism

Info

Publication number: CN215716033U
Application number: CN202121788454.1U
Authority: CN
Inventors: 迟达; 余丽娟
Original assignee: Tsinghua University; Suzhou Automotive Research Institute of Tsinghua University
Current assignee: Tsinghua University; Suzhou Automotive Research Institute of Tsinghua University
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-01
Anticipated expiration: 2031-08-03

Abstract

The utility model relates to the technical field of fastening structures, and discloses a square tube connector structure and a supporting mechanism, wherein the square tube connector structure comprises a connecting base, an inner core pushing assembly and an adjusting bolt, the connecting base comprises a base and at least two square joints, the square joints are arranged at the end part of the base, a square tube beam to be connected is sleeved on the periphery of each square joint, each square joint is of a hollow rectangular tubular structure, the inner core pushing assembly is arranged in each square joint in a sliding mode along the extending direction of each square joint, one end of each inner core pushing assembly is inserted into the base in a sliding mode, the adjusting bolt is in threaded connection with the base, the adjusting bolt can push the inner core pushing assembly to slide towards the direction deviating from the base in the process of screwing the base, and meanwhile, the inner core pushing assembly pushes the square joints to elastically deform towards the outer side. This square union coupling head structure is little with the fit clearance of square tubular beam, and cooperation precision and intensity are all higher, and easy dismounting is convenient for change square tubular beam.

Description

Square pipe connector structure and supporting mechanism

Technical Field

The utility model relates to the technical field of fastening structures, in particular to a square tube connector structure and a supporting mechanism.

Background

The square tubular beams are used as common pipes and are often used as load-bearing members in the fields of buildings and the like, and a plurality of square tubular beams are generally required to be assembled and connected to form an integral load-bearing support structure.

At present, one of the commonly used connection methods is welding, namely a plurality of square tubular beams are welded together directly, but a plurality of components are welded together with time and labor waste, and are fixedly connected with one another and cannot be disassembled, and when the square tubular beams are damaged or need to be replaced by square tubular beams of other models, the square tubular beams are not convenient to replace.

Another common connection method is to provide a plug connector to connect a plurality of square tubular beams in a plug manner, but the connection method has large fit clearance, low precision and low strength.

Therefore, there is a need for a square tube connecting head structure and a supporting mechanism to overcome the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide a square tube connector structure and a support mechanism, the square tube connector structure has a small fit clearance with a square tube beam, the fit precision and strength are higher, the disassembly and the assembly are convenient, and the square tube beam is convenient to replace.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the first aspect provides a square pipe connector structure, including connection base, inner core top pushing subassembly and adjusting bolt, connection base includes base and two at least square joints, square joint all set up in the tip of base, the square tubular beam cover of waiting to connect is located the periphery of square joint, square joint sets up to hollow rectangle tubular structure, inner core top pushing subassembly along square joint's extending direction slip set up in square joint, inner core top pushing subassembly's one end slip insert locate in the base, adjusting bolt with base threaded connection, adjusting bolt can promote in the course of twisting the base inner core top pushing subassembly towards deviating from the direction slip of base, inner core top pushing subassembly top pushes square joint outside elastic deformation simultaneously.

As an optional technical scheme of square pipe connector structure, the inner core pushing assembly comprises an inner core ejector block, a pushing inclined plane is arranged on the periphery of the inner core ejector block, the pushing inclined plane is gradually far away from the inner wall of the square joint along the direction of the pushing inclined plane far away from the base, an inward-protruding pushing part is arranged on the inner wall of the square joint, the pushing inclined plane can be pressed against the pushing part in the sliding process of the inner core pushing assembly towards the direction of the base, and the square joint is pushed by the pushing part to elastically deform towards the outer side.

As an optional technical scheme of square union coupling head structure, be equipped with the ejector pin hole that extends with square joint syntropy on the base to and run through the screw hole in ejector pin hole perpendicularly, inner core top pushes away the subassembly and still includes the ejector pin, the ejector pin is worn to locate in the ejector pin hole, the first end and the inner core kicking block of ejector pin are connected, adjusting bolt threaded connection is in the screw hole, adjusting bolt twists the in-process that the screw hole can push away the second end of ejector pin, make the ejector pin towards the direction slip that deviates from the base.

As an optional technical scheme of the square pipe connector structure, a conical pressing part is arranged at the second end of the ejector rod and/or one end of the adjusting bolt far away from the nut.

As an optional technical scheme of square union coupling head structure, top pushing part includes a plurality of circular bosss, and circular boss evenly distributed along square union's circumference.

As an optional technical scheme of square union coupling head structure, top pushing part includes annular boss, and annular boss sets up along square union's circumference.

As an optional technical scheme of the square pipe connector structure, a plurality of groove-shaped openings arranged along the axial direction are formed in the square connector.

As an optional technical scheme of the square pipe connector structure, four groove-shaped openings are arranged, and the four groove-shaped openings are correspondingly arranged at four corners of the square connector respectively.

As an optional technical scheme of square union coupling head structure, be equipped with the step of stepping down on the square joint, square tubular beams cover is located on the step of stepping down.

The second aspect still provides a supporting mechanism, including square tubular beams and the square pipe connector structure as above, square tubular beams and square pipe connector structure all are equipped with a plurality ofly, manage through square pipe connector structural connection between the tubular beams.

The utility model has the beneficial effects that:

the square pipe connector structure provided by the utility model is used for connecting a square pipe beam. In the non-connection state, the square joint is in a natural state and does not elastically deform; after square coupling periphery was located to square tubular beams cover, twist adjusting bolt in the base, adjusting bolt promoted inner core top pushing assembly and slided towards the direction that deviates from the base to with the inner wall butt of square coupling, further tighten adjusting bolt, inner core top pushing assembly pushes away the inner wall of square coupling gradually and makes square coupling outside elastic deformation, enlarges the connecting cross-section of square coupling, until the outer wall of square coupling and the inner wall top of square tubular beams tightly, realize interference fit between messenger's square coupling and the square tubular beams and be connected. When needs are dismantled or are changed, only need unscrew adjusting bolt, the pushing force that the inner core top pushes away the subassembly and to square union coupling head disappears, and square union coupling head can resume natural state, and square tubular beam can easily follow square union coupling head and structurally break away from. The square pipe connector structure provided by the utility model has the advantages of small fit clearance with the square pipe beam, higher fit precision and strength, convenience in disassembly and assembly and convenience in replacement of the square pipe beam.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a square pipe joint structure according to the present invention;

FIG. 2 is a partial sectional view of the square pipe joint structure according to the present invention;

FIG. 3 is a front view of the square pipe joint structure provided by the present invention;

FIG. 4 is a cross-sectional view of the square pipe joint structure provided by the present invention;

FIG. 5 is a left side view of the square pipe joint structure according to the present invention;

fig. 6 is a schematic view of the connection state of the square pipe joint structure and the square pipe beam provided by the utility model.

In the figure:

100. a connection base; 1. a base; 2. a square joint; 21. a abdicating step; 3. a pushing part; 4. a slot-shaped opening; 5. pushing the hole; 6. a threaded hole; 7. sinking a groove; 200. an inner core pushing assembly; 210. an inner core top block; 211. pushing the inclined plane; 220. pushing the push rod; 300. adjusting the bolt; 400. and (4) square tubular beams.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to fig. 6, the present embodiment provides a square pipe connecting head structure for connecting pipes, in the present embodiment, the pipe to be connected is a square pipe beam 400. Square union coupling head structure includes connection base 100, inner core pushes away subassembly 200 and adjusting bolt 300, connection base 100 includes base 1 and square joint 2, square joint 2 is provided with at least two, and square joint 2 all sets up in the tip of base 1, the square tubular beam 400 cover of waiting to connect is located on square joint 2, square joint 2 sets up to hollow rectangle tubular structure, inner core pushes away subassembly 200 and slides and set up in square joint 2, the one end of inner core pushes away subassembly 200 is slided and is inserted and locate in base 1, adjusting bolt 300 and base 1 threaded connection, adjusting bolt 300 can promote inner core push away subassembly 200 and slide towards the direction that deviates from base 1 at the in-process of twisting base 1, inner core push away subassembly 200 pushes away square joint 2 outside elastic deformation simultaneously.

Specifically, the square pipe joint structure provided by this embodiment is used to connect the square pipe beam 400. In the non-connection state, the square joint 2 is in a natural state and does not elastically deform; after the square tubular beam 400 is sleeved on the periphery of the square joint 2, the adjusting bolt 300 is screwed into the base 1, the adjusting bolt 300 pushes the inner core pushing assembly 200 to slide towards the direction departing from the base 1 and abut against the inner wall of the square joint 2, the adjusting bolt 300 is further screwed, the inner core pushing assembly 200 gradually pushes the inner wall of the square joint 2 and enables the square joint 2 to elastically deform towards the outer side, the connecting section of the square joint 2 is enlarged until the outer wall of the square joint 2 and the inner wall of the square tubular beam 400 are tightly pushed, and interference fit connection is achieved between the square joint 2 and the square tubular beam 400. When needs are dismantled or are changed, only need unscrew adjusting bolt 300, the jacking force that inner core top pushing subassembly 200 was to the square union coupling head disappears, and natural state can be resumeed to square union coupling head, and square tubular beam 400 can easily follow square union coupling head and structural break away from. The square pipe connection head structure that this embodiment provided is little with square tubular beam 400's fit clearance, and cooperation precision and intensity are all higher, and easy dismounting is convenient for change square tubular beam 400.

Further, the inner core pushing assembly 200 includes an inner core pushing block 210, as shown in the figure, a pushing inclined plane 211 is disposed on a peripheral portion of the inner core pushing block 210, the pushing inclined plane 211 gradually keeps away from an inner wall of the square joint 2 along a direction of the pushing inclined plane 211 away from the base 1, an inward protruding pushing portion 3 is disposed on the inner wall of the square joint 2, in a process that the inner core pushing assembly 200 slides in a direction away from the base 1, the pushing inclined plane 211 can press against the pushing portion 3, and the pushing portion 3 pushes the square joint 2 to elastically deform outward. Due to the arrangement of the pushing inclined plane 211, the elastic deformation of the square joint 2 is larger as the inner core pushing block 210 is far away from the base 1.

In the present embodiment, the pushing portion 3 includes a plurality of circular bosses which are uniformly distributed along the circumferential direction of the square joint 2. When the inner core top block 210 slides in the direction away from the base 1, the pushing inclined plane 211 presses against each circular boss, and the pushing inclined plane 211 pushes the square joint 2 to elastically deform towards the outer side through the circular boss so as to press the inner wall of the square tubular beam 400.

Of course, in other embodiments of the present invention, the pushing part 3 may also include an annular boss disposed along the circumference of the square joint 2. When the inner core top block 210 slides in a direction away from the base 1, the pushing inclined plane 211 presses against the annular boss, and the pushing inclined plane 211 pushes the square joint 2 to elastically deform towards the outer side through the annular boss so as to press the inner wall of the square tubular beam 400.

Further, as shown in fig. 2, a pushing hole 5 extending in the same direction as the square joint 2 is formed in the base 1, and a threaded hole 6 vertically penetrating through the pushing hole 5 is formed in the base 1, the inner core pushing assembly 200 further includes a pushing rod 220, the pushing rod 220 penetrates through the pushing hole 5, a first end of the pushing rod 220 is connected with the inner core pushing block 210, the adjusting bolt 300 is in threaded connection with the threaded hole 6, and the adjusting bolt 300 can push a second end of the pushing rod 220 in a process of being screwed into the threaded hole 6, so that the pushing rod 220 slides in a direction away from the base 1.

Optionally, a tapered pressing portion is provided at a second end of the ejector rod 220 and/or an end of the adjusting bolt 300 away from the nut. In this embodiment, the second end of the ejector rod 220 and the end of the adjusting bolt 300 away from the nut are both provided with a conical pressing portion, and the two conical pressing portions are abutted against each other, so that the adjusting bolt 300 pushes the ejector rod 220 to slide.

Optionally, one end of the threaded hole 6 is provided with a sinking groove 7, the sinking groove 7 is communicated with the threaded hole 6, and the sinking groove 7 is used for accommodating a nut of the adjusting bolt 300, so that the adjusting bolt 300 is prevented from being exposed from the connecting base 100, and the risk of interference with an external structure or personnel is reduced.

Optionally, the square joint 2 is provided with a plurality of groove-shaped openings 4 arranged along the axial direction, so as to reduce the overall rigidity of the square joint 2 and facilitate the elastic deformation of the square joint 2.

In this embodiment, as shown in fig. 1, four slot-shaped openings 4 are provided, and the four slot-shaped openings 4 are correspondingly provided at four corners of the square joint 2, respectively, so that at least part of four sidewalls of the square joint 2 are spaced apart from each other, when the pushing inclined plane 211 pushes the square joint 2 to elastically deform towards the outside through the circular boss, the four sidewalls of the square joint 2 elastically bend and deform towards the outside in a direction perpendicular to the sidewalls, and the four sidewalls of the square joint 2 abut against the corresponding four inner walls of the square tubular beam 400 in a one-to-one correspondence manner.

Optionally, the outer surface of the square joint 2 is provided with anti-slip patterns for improving the friction between the square joint 2 and the square tubular beam 400, and further improving the connection strength and the connection reliability.

Preferably, the square joint 2 is provided with the abdicating step 21, when the square tubular beam 400 is connected with the square joint 2, the square tubular beam 400 is sleeved on the abdicating step 21, the end part of the square tubular beam 400 abuts against the end surface of the abdicating step 3 or the corresponding end surface on the base 1, so as to limit the position of the square tubular beam 400 in the inserting direction and improve the connection precision.

Optionally, a lightening hole (not shown in the figure) is formed in the base 1, and is used for reducing the overall mass of the square pipe connector structure. In the present embodiment, two lightening holes are provided in the base 1.

Optionally, two square connectors 2 are arranged in the connection base 100, and an included angle between the two square connectors 2 is 90 degrees or 180 degrees.

Optionally, three square joints 2 are arranged in the connection base 100, and an included angle between adjacent square joints 2 is 120 degrees.

Optionally, four square joints 2 in the connection base 100 are provided, and an included angle between adjacent square joints 2 is 90 degrees.

Optionally, the number of the square joints 2 in the connection base 100 is multiple, and the plurality of square joints 2 are not all arranged in the same plane, for example, six square joints 2 are arranged, the base 1 is arranged in a hexagonal structure, and the six square joints 2 are arranged on six circumferential surfaces of the base 1 in a one-to-one correspondence manner.

This embodiment still provides a supporting mechanism, including square tubular beam 400 and the square pipe connector structure as above, square tubular beam 400 and square pipe connector structure all are equipped with a plurality ofly, connect structural connection through square pipe connector between the square tubular beam 400.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The utility model provides a square pipe connector structure, its characterized in that, includes connection base (100), inner core top pushes away subassembly (200) and adjusting bolt (300), connection base (100) include base (1) and two at least square joints (2), square joint (2) all set up in the tip of base (1), the square tubular beam (400) cover of waiting to connect is located the periphery of square joint (2), square joint (2) set up to hollow rectangle tubular structure, inner core top pushes away subassembly (200) edge the extending direction of square joint (2) slide set up in square joint (2), the one end of inner core top pushes away the subassembly (200) is slided and is inserted and locate in base (1), adjusting bolt (300) with base (1) threaded connection, adjusting bolt (300) is twisting the in-process of base (1) can promote inner core top pushes away subassembly (200) towards deviating from base (1)'s the orientation The inner core pushing assembly (200) pushes the square joint (2) to elastically deform outwards at the same time.

2. The square pipe connector structure according to claim 1, wherein the inner core pushing assembly (200) comprises an inner core top block (210), a pushing inclined plane (211) is arranged on the periphery of the inner core top block (210), the pushing inclined plane (211) is gradually far away from the inner wall of the square joint (2) along the direction of the pushing inclined plane (211) far away from the base (1), an inward-protruding pushing portion (3) is arranged on the inner wall of the square joint (2), and in the process that the inner core pushing assembly (200) slides in the direction of the base (1), the pushing inclined plane (211) can press against the pushing portion (3) and pushes the square joint (2) to be elastically deformed outwards through the pushing portion (3).

3. The square pipe connector structure according to claim 2, wherein the base (1) is provided with a pushing hole (5) extending in the same direction as the square connector (2) and a threaded hole (6) vertically penetrating through the pushing hole (5), the inner core pushing assembly (200) further comprises a pushing rod (220), the pushing rod (220) is arranged in the pushing hole (5) in a penetrating manner, a first end of the pushing rod (220) is connected with the inner core ejector block (210), the adjusting bolt (300) is in threaded connection with the threaded hole (6), and the adjusting bolt (300) can push a second end of the pushing rod (220) in a process of being screwed into the threaded hole (6), so that the pushing rod (220) slides in a direction deviating from the base (1).

4. The square pipe joint structure according to claim 3, wherein a tapered pressing portion is provided at a second end of the ejector pin (220) and/or an end of the adjusting bolt (300) away from the nut.

5. A square pipe joint head structure according to claim 2, wherein the pushing part (3) comprises a plurality of circular bosses which are evenly distributed along the circumference of the square joint (2).

6. A square pipe joint head structure according to claim 2, wherein the pushing part (3) comprises an annular boss provided along a circumferential direction of the square joint (2).

7. A square tube connecting joint structure according to claim 1, wherein the square joint (2) is provided with a plurality of groove-shaped openings (4) arranged in the axial direction.

8. The square pipe joint head structure according to claim 7, wherein there are four of said slot-shaped openings (4), and four of said slot-shaped openings (4) are respectively disposed at four corners of said square joint (2).

9. The square pipe joint structure according to claim 1, wherein the square joint (2) is provided with a yielding step (21), and the square pipe beam (400) is sleeved on the yielding step (21).

10. A supporting mechanism, characterized by, including square tubular beam (400) and square pipe connector structure according to any one of claims 1 to 9, square tubular beam (400) with square pipe connector structure all is equipped with a plurality ofly, pass through between the square tubular beam (400) square pipe connector structural connection.