Easy-to-connect round-top square-bottom box

Abstract

A round-top square-bottom box convenient to connect comprises a round frame, a square frame, four triangular plates and four arc plates, wherein the round frame and the square frame are arranged up and down, and the four triangular plates and the four arc plates are arranged between the round frame and the square frame. The triangular plate comprises a bottom edge and two first side edges which are oppositely arranged, the bottom edge is connected with the square frame, the arc plate comprises an arc-shaped top edge and two second side edges which are oppositely arranged, and the top edge is connected with the round frame; reinforcing plates are arranged on the inner sides of the first side edges, and connecting plates which can be matched with the reinforcing plates on the adjacent first side edges in a clamping / riveting / screw connection mode are arranged on the inner sides of the second side edges. Limiting pieces are detachably arranged among the four triangular plates. Before welding, the reinforcing plate and the connecting plate are connected, the die clamping and limiting effects can be achieved, and it is guaranteed that displacement does not occur between the triangular plate and the arc plate in the welding process. The triangular plates can be supported through the limiting pieces, deformation is prevented, follow-up overall welding is facilitated, and the triangular plates can be disassembled conveniently and rapidly and can be used repeatedly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a round-to-square transition, in particular to a round-to-square transition convenient to connect. BACKGROUND

[0002] In the connection of the fan and the pipeline, the round-to-square transition is widely used in the occasions such as the transition from the rectangular air duct to the circular air duct. In the manufacturing process, the developed drawing of the reducing cylinder is generally calculated by using the software, and the blanking is carried out accordingly, and then the welding forming is carried out. In order to ensure the accuracy of the position between the various sheet metals before welding, it is usually necessary to first fix the position by spot welding and then weld integrally, or first weld and fix the connecting rod between the sheet metals, and then cut the fixed connecting rod from the round-to-square transition after the integral welding is completed. However, this method increases the number of weldings, and the operation is complex and tedious, and sharp corners are prone to occur after cutting, so it is necessary to polish the sharp corners, which increases the manufacturing process and is time-consuming and laborious. SUMMARY

[0003] In order to solve the technical problems of the difficulty in limiting the sheet metal before welding of the round-to-square transition, the time-consuming and laborious existing fixing method, and the complicated operation in the background art, the utility model provides a round-to-square transition convenient to connect.

[0004] The utility model technical scheme is as follows:

[0005] A round-to-square transition convenient to connect, comprising a circular frame and a square frame arranged in an up-down manner, and four triangular plates and four arc plates arranged between the circular frame and the square frame; the triangular plate comprises a bottom edge and two oppositely arranged first side edges, wherein the bottom edge is connected with the square frame, and the arc plate comprises a circular-arc-shaped top edge and two oppositely arranged second side edges, wherein the top edge is connected with the circular frame; a reinforcing plate is arranged on the inner side of the first side edge, and a connecting plate capable of being matched and connected with the reinforcing plate on the adjacent first side edge by clamping / riveting / screw connection is arranged on the inner side of the second side edge; a limiting piece is further detachably arranged between the four triangular plates.

[0006] The reinforcing plate arranged on the triangular plate can enhance the overall strength of the round-to-square transition, and the reinforcing plate and the connecting plate can be connected to play the role of mold clamping and limiting before the triangular plate and the arc plate are welded, so as to ensure that the triangular plate and the arc plate do not displace during welding. The limiting piece can support the triangular plate, which is convenient for subsequent integral welding, and after the welding is completed, the limiting piece can be conveniently and quickly disassembled and reused.

[0007] Further, the reinforcing plate and the connecting plate are riveted, and the reinforcing plate and the connecting plate are provided with riveting holes capable of matching. The riveting process is simple in equipment, high in connecting strength, good in tightness, reliable in bearing impact load, ensures that the reinforcing plate and the connecting plate have sufficient connecting strength after being connected, and ensures that displacement does not occur between the triangular plates and the arc plates during subsequent welding.

[0008] To ensure that the reinforcing plate and the connecting plate can be tightly attached after being connected, one side surface of the reinforcing plate is flush with the first side edge where the reinforcing plate is located, and one side surface of the connecting plate is flush with the second side edge where the connecting plate is located.

[0009] Further preferably, reinforcing rib plates are further connected between the two reinforcing plates. The reinforcing rib plates improve the stability between the reinforcing plates and further enhance the strength of the triangular plates in all directions.

[0010] As a preferred embodiment, the reinforcing rib plate is provided with a through hole, and the limiting piece is connected to the through hole through a bolt. The limiting piece is connected to the reinforcing rib plate, thereby supporting and limiting the triangular plate. The reinforcing rib plate is arranged in parallel to the bottom edge, thereby ensuring that the connecting positions of the limiting piece and the four triangular plates are consistent, and enhancing the limiting and supporting effects of the limiting piece.

[0011] To ensure the supporting effect of the limiting piece on the triangular plate and avoid the triangular plate from falling, the reinforcing rib plate is connected to the middle part between the two reinforcing plates.

[0012] Specifically, the limiting piece includes a cross-shaped connecting head and four limiting rods arranged circumferentially on the connecting head, and the outer end of the limiting rod is connected to the through hole. The limiting rod is arranged to be able to stretch and contract along the length direction. The stretchable limiting rod is connected to the reinforcing rib plate, thereby facilitating the adjustment of the relative distance between the four triangular plates at any time. Moreover, the stretchable design can adapt to the manufacturing requirements of different sizes of round places, and is flexible.

[0013] Preferably, a limiting bolt is arranged between the limiting rod and the connecting head. After the relative positions of the four triangular plates are adjusted, the limiting bolt is tightened to prevent the limiting rod from stretching and contracting accidentally.

[0014] Further preferably, the triangular plate and the arc plate are integrally machined and formed. The triangular plate is once cut and formed, and the arc plate is cut again and then formed by a plate rolling machine according to the size of the round frame, thereby avoiding unnecessary deformation caused by excessive bending. The manufacturing is simple and easy, saves manufacturing time, and reduces labor and equipment costs.

[0015] As a preferred embodiment, the reinforcing plate and the reinforcing rib plate are connected through welding. The welding connection is not only convenient for construction but also has good mechanical properties and sealing performance, thereby improving the stability of the connection.

[0016] The utility model discloses a convenient connection's round place has the beneficial effect that in through the cooperation of reinforcing plate and connecting plate, can provide the fixed effect of card mould before welding, prevents the displacement between triangular plate and arc plate when welding, after welding, need not carry out dismantling, and reinforcing plate and connecting plate jointly provide the reinforcing effect for round place, improve overall strength. The setting of limiting piece can connect four triangular plates simultaneously, and play the effect of supporting and limiting, prevent displacement or deformation, make subsequent overall welding convenient. Moreover, the telescopic setting of limiting piece's limiting rod can adapt to the connection requirement of different size round place, and after welding, can be convenient and fast dismantling and can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0017] In the drawings:

[0018] Figure 1 It is a schematic view of the utility model discloses a convenient connection's round place;

[0019] Figure 2 It is a top view of the utility model discloses a convenient connection's round place;

[0020] Figure 3 It is triangular plate schematic diagram in the embodiment;

[0021] Figure 4 It is arc plate schematic diagram in the embodiment;

[0022] Figure 5 It is limiting schematic diagram in the embodiment;

[0023] The components represented by the reference signs in the drawings are:

[0024] 1, round frame;2, square frame;3, triangular plate;4, arc plate;5, reinforcing plate;6, connecting plate;7, reinforcing rib plate;8, limiting piece;81, connecting head;82, limiting rod;83, limiting bolt. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings.

[0026] Embodiment

[0027] In combination Figures 1 to 5 , the embodiment provides a convenient connection's round place, including up and down setting's round frame 1, square frame 2 and four triangular plates 3 and four arc plates 4 set between two.

[0028] Further preferably, the triangular plate 3 and the arc plate 4 are integrally formed, the triangular plate 3 is formed by one-time cutting, and the arc plate 4 is formed by cutting and then rolling according to the size of the circular frame 1 by a plate rolling machine, so as to avoid unnecessary deformation caused by excessive bending. Thus, the manufacturing is simpler and easier, the manufacturing time is saved, and the labor and equipment costs are reduced.

[0029] In the embodiment, in combination with Figure 1 and Figure 2 , the triangular plate 3 comprises a bottom edge and two oppositely arranged first side edges, wherein the bottom edge is connected with the square frame 2, and the arc plate 4 comprises a circular arc-shaped top edge and two oppositely arranged second side edges, wherein the top edge is connected with the circular frame 1. The bottom edges of the four triangular plates 3 are respectively connected with the four peripheries of the square frame 2, and the top edges of the four arc plates are connected with the circumferences of the circular frame 1. After the connection, square flanges and circular flanges can be respectively welded on the square frame 2 and the circular frame 1 according to requirements. The square frame 2 and the circular frame 1 are both annular, and the bottom edges and the top edges are respectively welded with the inner circumferences of the square frame 2 and the circular frame 1.

[0030] In the embodiment, in combination with Figure 3 , Figure 4 , the inner side of the first side edge is provided with a reinforcing plate 5, and the inner side of the second side edge is provided with a connecting plate 6 capable of being clamped, riveted or screwed with the reinforcing plate 5 on the adjacent first side edge. The reinforcing plate 5 arranged on the triangular plate 3 can enhance the overall strength of the square place on the round sky. Moreover, before the welding of the triangular plate 3 and the arc plate 4, the connecting of the reinforcing plate 5 and the connecting plate 6 can play a role of clamping and limiting, so as to ensure that the triangular plate 3 and the arc plate 4 will not be displaced during welding.

[0031] The reinforcing plate 5 is a continuous strip plate, and the length thereof is 1 / 2-4 / 5 of the length of the first side edge, so as to ensure that the reinforcing plate 5 has sufficient reinforcing effect and avoids collision of the ends of the reinforcing plates 5 on both sides, thereby facilitating welding. The connecting plate 6 is a strip plate arranged at intervals, and at least two connecting plates 6 are arranged. The length of the connecting plate 6 is set to be 1 / 4-1 / 3 of the length of the second side edge, so as to ensure that the connecting plate 6 has sufficient connecting range and connecting strength with the reinforcing plate 5 while reducing the overall weight, saving materials, and the interval arrangement can leave a space between the triangular plate 3 and the arc plate 4 for reinforcing welding from the inner side.

[0032] In order to ensure that the reinforcing plate 5 and the connecting plate 6 can be closely fitted after being connected, one side surface of the reinforcing plate 5 is flush with the first side edge where the reinforcing plate 5 is arranged, and one side surface of the connecting plate 6 is flush with the second side edge where the connecting plate 6 is arranged.

[0033] Further, in combination with Figure 3 and Figure 4The reinforcing plate 5 and the connecting plate 6 are connected by riveting, and the reinforcing plate 5 and the connecting plate 6 are provided with riveting holes matched with each other. The riveting process is simple in equipment, high in connecting strength, good in tightness, reliable in bearing impact load, and capable of ensuring that the reinforcing plate 5 and the connecting plate 6 have sufficient connecting strength after being connected, and ensuring that displacement does not occur between the triangular plate 3 and the arc plate 4 during subsequent welding.

[0034] Further preferably, the two reinforcing plates 5 are further connected with reinforcing rib plates 7. The reinforcing rib plates 7 are arranged to improve the stability between the reinforcing plates 5 and further enhance the strength of the triangular plate 3 in all directions.

[0035] As a preferred embodiment, the reinforcing plate 5 and the reinforcing rib plate 7 are connected by welding, which is convenient for construction and has good mechanical properties and sealing performance of the welding joint, thereby improving the stability of the connection.

[0036] In the embodiment, the four triangular plates 3 are further provided with detachable limiting members 8. The limiting members 8 are arranged to support the triangular plates 3, which is convenient for subsequent overall welding, and the limiting members 8 can be conveniently and quickly detached and reused after welding.

[0037] As a preferred embodiment, the reinforcing rib plate 7 is provided with a through hole, and the limiting member 8 is connected with the through hole by a bolt. The limiting member 8 is connected with the reinforcing rib plate 7 to support and limit the triangular plate 3, and the reinforcing rib plate 7 is arranged parallel to the bottom edge to ensure that the connecting positions of the limiting member 8 and the four triangular plates 3 are consistent, thereby enhancing the limiting and supporting effects of the limiting member 8.

[0038] To ensure the supporting effect of the limiting member 8 on the triangular plate 3 and prevent the triangular plate 3 from tilting, the reinforcing rib plate 7 is connected between the middle portions of the two reinforcing plates 5.

[0039] As for the limiting member 8, in combination with Figure 5 The limiting member 8 includes a cross-shaped connecting head 81 and four limiting rods 82 arranged circumferentially on the connecting head 81, and the outer ends of the limiting rods 82 are connected with the through hole. The limiting rods 82 are arranged to be telescopic along the length direction. The telescopic limiting rods 82 are connected with the reinforcing rib plate 7, which is convenient for adjusting the relative distance between the four triangular plates 3 at any time, and the telescopic design can adapt to the manufacturing requirements of different sizes of round places, and is flexible.

[0040] Preferably, a limiting bolt 83 is further arranged between the limiting rod 82 and the connecting head 81. After the relative positions of the four triangular plates 3 are adjusted, the limiting bolt 83 is tightened to prevent the limiting rod 82 from telescoping accidentally.

[0041] The utility model discloses a convenient connection's place of heaven round in the prior art, the cutting blanking of round frame 1, square frame 2, triangular plate 3 and arc plate 4 is completed respectively first, then arc plate 4 is processed and is shaped according to the size of round frame 1 using the plate coiling machine, and the inside welding reinforcing plate 5, connecting plate 6 and reinforcing rib plate 7 of triangular plate 3 and arc plate 4, the riveting connection of adjacent reinforcing plate 5 and connecting plate 6 is carried out, guarantees the firm connection, then connecting piece 8 is connected with reinforcing rib plate 7, and the stable triangular plate 3 and arc plate 4 of connection can not displace, after connecting, the welding of the connecting place of triangular plate 3 and arc plate 4 is carried out, and the welding of square frame 2 and round frame 1, finally, the whole is adjusted slightly, polishing, according to need, square, round flange is welded on square frame 2 and round frame 1 respectively, after the welding of whole is completed, dismounting limiting part 8.

[0042] Through the above design, the utility model discloses a convenient connection's place of heaven round through the cooperation of reinforcing plate 5 and connecting plate 6, can provide the effect of clamping mold fixation before welding, prevent displacement between triangular plate 3 and arc plate 4 when welding, after welding, do not need to carry out dismounting, and reinforcing plate 5 and connecting plate 6 provide the reinforcing effect for place of heaven round together, improve overall strength. The setting of limiting part 8 can connect four triangular plates 3 simultaneously, and play the effect of supporting and limiting, prevent displacement or deformation, facilitate the overall welding of follow-up. Moreover, the limiting rod 82 of limiting part 8 can be telescopic, can adapt to the connection requirement of place of heaven round of different sizes, and after welding, can be conveniently and quickly disassembled and can be repeatedly used.

Claims

1. A convenient connection of a square to a round, characterized in that, It comprises a circular frame (1), a square frame (2) and four triangular plates (3) and four arc plates (4) arranged between the circular frame and the square frame. The triangular plate (3) comprises a bottom edge and two opposite first side edges, wherein the bottom edge is connected with the square frame, and the arc plate comprises a circular arc top edge and two opposite second side edges, wherein the top edge is connected with the circular frame. The inner side of the first side edge is provided with a reinforcing plate (5), and the inner side of the second side edge is provided with a connecting plate (6) capable of being matched with the reinforcing plate (5) on the adjacent first side edge. Four triangular plates (3) are further provided with a detachable limiting piece (8).

2. A convenient connection of a circle of the earth to a square according to claim 1, characterized in that, The reinforcing plate (5) and the connecting plate (6) are riveted, and rivet holes are formed on the reinforcing plate (5) and the connecting plate (6) to match each other.

3. A convenient connection of a circle of the earth to a square according to claim 1, characterized in that, One side surface of the reinforcing plate (5) is flush with the first side edge, and one side surface of the connecting plate (6) is flush with the second side edge.

4. A convenient connection of a circle of the earth to a square according to claim 1, characterized by, Two reinforcing plates (5) are further connected with a reinforcing rib plate (7).

5. A convenient connection of a circle of the earth to a square of the earth according to claim 4, characterized in that, The reinforcing rib plate (7) is provided with a through hole in the middle, and the limiting piece (8) is connected with the through hole through a bolt.

6. A convenient connection of a circle of the earth to a square of the earth according to claim 5, characterized in that, The reinforcing rib plate (7) is connected between the middle of two reinforcing plates (5).

7. A convenient connection of a circle of the earth to a square according to claim 5, characterized by, The limiting piece (8) comprises a cross-shaped connecting head (81) and four limiting rods (82) arranged circumferentially thereon, and the outer end of the limiting rod (82) is connected with the through hole. The limiting rod (82) is arranged to be able to stretch and contract along the length direction.

8. A convenient connection of a circle of the earth to a square according to claim 7, characterized by, The limiting rod (82) and the connecting head (81) are further provided with a limiting bolt (83).

9. A convenient connection of a circle of the earth to a square according to claim 1, characterized by, The triangular plate (3) and the arc plate (4) are integrally processed and formed.

10. A convenient connection of a circle of the earth to a square according to claim 4, characterized by, The reinforcing plate (5) and the reinforcing rib plate (7) are connected through welding.

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