Corner connection structure of a workbench of a bridge cutting machine

Abstract

The present invention discloses a corner connection structure of a workbench of a bridge cutting machine, which includes a workbench body. Installation holes penetrating the workbench body in the up and down direction are provided at the four corner ends of the workbench body. A leg that can move up and down is inserted into each installation hole. A plurality of fixing holes are provided on the leg. Square notches and positioning holes are provided on the outer side surface of the installation hole at intervals in the up and down direction. An eccentric positioning component is rotatably connected to the outer surface of the square notch. When the leg and the workbench body are in a locked state, the upper end of the eccentric positioning component abuts against the leg after passing through the square notch, and its lower end passes through the positioning hole and is inserted into the fixing hole. The corner connection structure of the present invention has high overall connection strength, is convenient for the transportation of the cutting machine, improves the anti-tilting performance of the workbench of the cutting machine, and thus improves the cutting efficiency of the cutting machine.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and more particularly to a corner connection structure of a workbench of a bridge cutting machine. Background Art

[0002] Bridge cutting machines are mainly used for cutting stone. In current bridge cutting machines, the workbench is generally a frame structure welded by four sides, and the support legs are fixed to the frame structure through other components. The workbench made of this structure has poor anti-tilting performance, low structural strength, and is not convenient for the overall packaging and transportation of the cutting machine, resulting in low cutting efficiency during use. Summary of the Invention

[0003] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. In view of this, the present invention provides a corner connection structure of a workbench of a bridge cutting machine with high overall connection strength, convenient for the transportation of the cutting machine, improving the anti-tilting performance of the workbench of the cutting machine, and improving the cutting efficiency of the cutting machine.

[0004] The present invention provides a corner connection structure of a workbench of a bridge cutting machine, including: a workbench body, mounting holes penetrating the workbench body in the up and down direction are provided at the four corner ends of the workbench body, legs that can move up and down are inserted into each of the mounting holes, a plurality of fixing holes are provided on the legs, a square notch and a positioning hole are provided on the outer side surface of the mounting hole at intervals up and down, an eccentric positioning component is rotatably connected to the outer surface of the square notch, when the leg and the workbench body are in a locked state, the upper end of the eccentric positioning component abuts against the leg after passing through the square notch, and its lower end passes through the positioning hole and is inserted into the fixing hole.

[0005] According to an embodiment of the present invention, the workbench body is a frame structure sequentially enclosed by two cross bars, two longitudinal bars and four corner connectors, the mounting holes, the square notches and the positioning holes are all provided on the corner connectors, and the corner connectors are detachably connected to the cross bars and the longitudinal bars on both sides thereof.

[0006] According to an embodiment of the present invention, connection protrusions are provided on both sides of the square notch on the corner connector, and a plurality of connection holes for cooperating with the cross bar or the longitudinal bar are provided on each connection protrusion in the up and down direction, and the central axes of the connection holes on both sides are perpendicular to each other.

[0007] According to an embodiment of the present invention, the eccentric positioning assembly includes an eccentric column and a positioning hook. The eccentric column is rotatably connected to rotating plates provided on both sides of the square notch through a rotating shaft. The top end of the positioning hook is connected to the eccentric column, and its bottom end passes through the positioning hole and is inserted into the fixing hole of the leg in the locked state. At this time, one side of the eccentric column abuts against the leg to fix the leg in the mounting hole.

[0008] According to an embodiment of the present invention, the positioning hook is an elastic steel bar that is sequentially bent in multiple segments and is L-shaped. In the locked state, the last segment of the elastic steel bar of the positioning hook that is far from the eccentric column is in a horizontal state.

[0009] According to an embodiment of the present invention, a positioning protrusion extending in the vertical direction is provided on the outer side surface of the angle connector that is oppositely arranged to the square notch.

[0010] According to an embodiment of the present invention, the thickness of the side surface of the angle connector below the positioning protrusion is a gradually expanding structure from the lower end of the positioning protrusion to the direction away from the positioning protrusion, and the minimum thickness of this side surface is equal to the thickness of the side surface provided with the positioning hole.

[0011] According to an embodiment of the present invention, reinforcing protrusion parts are further provided on both side surfaces of the connecting protrusion on the angle connector, and the reinforcing protrusion parts are located below the connecting protrusion.

[0012] According to an embodiment of the present invention, the cross-section of the positioning protrusion is an isosceles trapezoid.

[0013] According to an embodiment of the present invention, both the cross bar and the longitudinal bar are aluminum profiles, and the angle connector is an aluminum die-casting.

[0014] The angle connector in the corner connection structure of the bridge cutting machine workbench of the present invention is an aluminum die-casting, which is not only a connecting and fixing part for the cross bar and the longitudinal bar in the workbench body, but also a locking fastener for the legs. When the legs move up and down to a specified position in the mounting hole, the eccentric column rotates and abuts against the legs, and the positioning hook is used in cooperation with the fixing hole to firmly fix the legs in the mounting hole and complete the locking of the legs in the mounting hole. The design of the above structure effectively improves the overall structural strength of the workbench body. Further, the positioning protrusion, the gradually expanding structure below it, and the reinforcing protrusion parts provided in the angle connector can greatly improve the anti-tilting performance of the workbench body in the four directions of front, back, left, and right, as well as between the two diagonals, thereby improving the cutting efficiency of the bridge cutting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of a corner connection structure of a bridge cutting machine workbench according to the present invention.

[0016] Figure 2 It is a right view of the corner connection structure of a bridge cutting machine workbench according to the present invention.

[0017] Figure 3 It is a schematic diagram of a partial structure according to the present invention.

[0018] Figure 4 is Figure 3 A schematic diagram of the structure in another direction of

[0019] Figure 5 It is a three-dimensional view of the corner connector according to the present invention.

[0020] Figure 6 is Figure 5 The front view of

[0021] Figure 7 is Figure 6 The sectional view in the A-A direction in

[0022] Reference numerals: 1 - workbench body; 2 - leg; 3 - eccentric positioning assembly; 11 - cross bar; 12 - longitudinal bar; 13 - corner connector; 21 - fixing hole; 31 - eccentric shaft; 32 - positioning hook; 33 - rotating shaft; 131 - mounting hole; 132 - square notch; 133 - positioning hole; 134 - connecting protrusion; 135 - connecting hole; 136 - rotating plate; 137 - positioning protrusion; 138 - reinforcing protrusion. Detailed implementation manners

[0023] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] As Figures 1 to 7 shown, a corner connection structure of a bridge cutting machine workbench includes: a workbench body 1. Mounting holes 131 penetrating the workbench body 1 in the up and down direction are provided at the four corner ends of the workbench body 1. A leg 2 that can move up and down is inserted into each mounting hole 131. A plurality of fixing holes 21 are provided on the leg 2. A square notch 132 and a positioning hole 133 are provided on the outer side surface of the mounting hole 131 at intervals up and down. An eccentric positioning assembly 3 is rotatably connected to the outer surface of the square notch 132. When the leg 2 and the workbench body 1 are in a locked state, the upper end of the eccentric positioning assembly 3 abuts against the leg 2 after passing through the square notch 132, and its lower end passes through the positioning hole 133 and is inserted into the fixing hole 21.

[0025] The corner connector 13 in the corner connection structure of the workbench of the bridge cutting machine of the present invention is an aluminum die-casting. It is not only a connecting and fixing part for the cross bar 11 and the longitudinal bar 12 in the workbench body 1, but also a locking fastener for the leg 2. When the leg 2 moves up and down to a specified position in the mounting hole 131, the eccentric column 31 rotates and abuts against the leg 2, and the positioning hook 32 is used in cooperation with the fixing hole 21, so as to firmly fix the leg 2 in the mounting hole 131 and complete the locking of the leg 2 in the mounting hole 131. The design of the above structure effectively improves the overall structural strength of the workbench body 1. Further, the positioning protrusion 137 provided in the corner connector 13, the gradually expanding structure below it, and the strengthening protrusion 138 can greatly improve the anti-tilting performance of the workbench body 1 in the four directions of front, back, left, and right, as well as between the two diagonals, thereby improving the cutting efficiency of the bridge cutting machine.

[0026] As Figure 1 and Figure 2 shown, the workbench body 1 is a frame structure formed by sequentially enclosing two cross bars 11, two longitudinal bars 12 and four corner connectors 13. The mounting hole 131, the square notch 132 and the positioning hole 133 are all provided on the corner connector 13. The corner connector 13 is detachably connected to the cross bar 11 and the longitudinal bar 12 on its two sides to improve the overall connection structural strength of the workbench body 1.

[0027] As Figures 3 to 7 shown, connection protrusions 134 are provided on both sides of the square notch 132 on the corner connector 13. Each connection protrusion 134 is provided with a plurality of connection holes 134 for cooperating with the cross bar 11 or the longitudinal bar 12 in the up and down direction. The central axes of the connection holes 135 on both sides are perpendicular to each other. It should be understood that an installation channel is provided between two opposite connection holes 135 in the upper layer. The installation channel is communicated with the installation hole 131. The installation channel facilitates the quick assembly and disassembly between the connection holes 135 and the cross bar 11 and the longitudinal bar 12, and is convenient for checking the locking state of the leg 2.

[0028] As Figures 1 to 4As shown in the figure, the eccentric positioning assembly 3 includes an eccentric column 31 and a positioning hook 32. The eccentric column 31 is rotatably connected to the rotating plates 136 provided on both sides of the square notch 132 through a rotating shaft 33. The top end of the positioning hook 32 is connected to the eccentric column 31, and its bottom end passes through the positioning hole 133 and is inserted into the fixing hole 21 of the leg 2 in the locked state. At this time, one side of the eccentric column 31 abuts against the leg 2 to fix the leg 2 in the mounting hole 131. By rotating the positioning hook 32, the eccentric column 31 is driven to rotate accordingly. When the positioning hook 32 is separated from the fixing hole 21, the eccentric column 31 is also separated from the leg 2. At this time, the leg 2 can move up and down in the mounting hole 131. The positioning hook 32 is an elastic steel bar with multiple sequential bends and an L shape. In the locked state, the last bent elastic steel bar of the positioning hook 32 away from the eccentric column 31 is in a horizontal state. It should be understood that when the eccentric column 31 and the positioning hook 32 are used in cooperation with the fixing hole 21 at the top end of the leg 2, the workbench is suitable for supporting the cutting machine at this time. When used in cooperation with the fixing hole 21 at the bottom end of the leg 2, the leg 2 is in a retracted state at this time to facilitate the packaging and transportation of the cutting machine.

[0029] As Figures 3 to 7 shown, on the outer side surface of the angle connector 13 opposite to the square notch 132, there is a positioning protrusion 137 extending in the vertical direction. The cross-section of the positioning protrusion 137 is an isosceles trapezoid, which is used to engage with the connecting ends of the cross bar 11 and the longitudinal bar 12 and is connected through the connecting hole 135 to increase the structural strength of the connection.

[0030] As Figure 7 shown, the thickness of the side surface of the angle connector 13 below the positioning protrusion 137 is a gradually expanding structure from the lower end of the positioning protrusion to the direction away from the positioning protrusion 137. The minimum thickness of this side surface is equal to the thickness of the side surface provided with the positioning hole 133. The above structural design is used to strengthen the connection strength between the two diagonals of the workbench and improve the anti-tilting performance of the workbench in the direction of its diagonal.

[0031] As Figure 5 and Figure 6 shown, on both side surfaces of the connecting protrusion 134 on the angle connector 13, there are also reinforcing protrusion parts 138. The reinforcing protrusion parts 138 are located below the connecting protrusion 134 and are used to improve the anti-tilting performance of the workbench in the four directions of front, back, left, and right.

[0032] As Figure 1 and Figure 2As shown, both the cross bar 11 and the longitudinal bar 12 are aluminum profiles with relatively light mass and high structural strength, which facilitates the installation of a movable handle, a water collecting pool, etc. on the workbench body. The angle connector 13 is an aluminum die-casting part, which can effectively improve the connection structural strength between it and the cross bar 11 and the longitudinal bar 12, enhance the overall structural strength of the workbench, thereby reducing the vibration during the use of the cutting machine and improving the cutting efficiency of the cutting machine.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An angular connection structure for a workbench of a bridge cutting machine, comprising: Workbench body, mounting holes penetrating the workbench body in the vertical direction are provided at the four corner ends of the workbench body. It is characterized in that legs that can move up and down are inserted into each of the mounting holes. A plurality of fixing holes are provided on the legs. Square notches and positioning holes are provided on the outer side surface of the mounting hole at intervals in the vertical direction. An eccentric positioning component is rotatably connected to the outer surface of the square notch. When the leg and the workbench body are in a locked state, the upper end of the eccentric positioning component abuts against the leg after passing through the square notch, and its lower end passes through the positioning hole and is inserted into the fixing hole; The workbench body is a frame structure formed by sequentially enclosing two cross bars, two longitudinal bars and four corner connectors. The mounting holes, the square notches and the positioning holes are all provided on the corner connectors. The corner connectors are detachably connected to the cross bars and the longitudinal bars on both sides thereof; Connection protrusions are provided on both sides of the square notch on the corner connector. A plurality of connection holes for cooperating with the cross bar or the longitudinal bar are provided on each connection protrusion in the vertical direction. The central axes of the connection holes on both sides are perpendicular to each other; The eccentric positioning component includes an eccentric column and a positioning hook. The eccentric column is rotatably connected to a rotating plate provided on both sides of the square notch through a rotating shaft. The top end of the positioning hook is connected to the eccentric column. Its bottom end passes through the positioning hole and is inserted into the fixing hole of the leg in the locked state. At this time, one side of the eccentric column abuts against the leg to fix the leg in the mounting hole.

2. The corner connection structure of a bridge cutting machine workbench according to claim 1, characterized in that, The positioning hook is an elastic steel bar bent in multiple segments in sequence and in an L shape. In the locked state, the last bent elastic steel bar of the positioning hook away from the eccentric column is in a horizontal state.

3. The corner connection structure of a bridge cutting machine workbench according to claim 1, characterized in that A positioning protrusion extending in the vertical direction is provided on the outer side surface of the corner connector opposite to the square notch; 4. The corner connection structure of a bridge cutting machine workbench according to claim 3, characterized in that, The thickness of the side surface of the corner connector below the positioning protrusion is of a gradually expanding structure from the lower end of the positioning protrusion to the direction away from the positioning protrusion. The minimum thickness of this side surface is equal to the thickness of the side surface provided with the positioning hole.

5. The corner connection structure of a bridge cutting machine workbench according to claim 1, characterized in that, Reinforcing protrusion parts are further provided on both side surfaces of the connection protrusion on the corner connector. The reinforcing protrusion parts are located below the connection protrusion.

6. The corner connection structure of a bridge cutting machine workbench according to claim 3, characterized in that, The cross section of the positioning protrusion is an isosceles trapezoid.

7. The corner connection structure of a bridge cutting machine workbench according to claim 1, characterized in that, Both the cross bar and the longitudinal bar are aluminum profiles, and the corner connector is an aluminum die casting.

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