A hoisting universal coupling shaft

Abstract

The present invention discloses a hoisting universal connecting shaft, comprising a hinge and two connecting parts; the connecting part comprises a main body block, a rotating block, and a welding block for connecting to a truss or a bracket; one side of the rotating block is hinged to the main body block; the welding block is installed on the other side of the rotating block and can rotate around the center line of the rotating block; a matching groove is provided on the side of the main body block away from the rotating block and in the middle to form two ear blocks on both sides of the main body block; a hinge hole is provided on the main body block, the hinge hole vertically penetrates the two ear blocks and passes through the matching groove; the present invention can be used for hoisting a stage bracket or truss, and using it as an active node, it can be swung in the up and down, left and right directions, and can be twisted, so that the bracket or truss can be adjusted according to various action requirements, thereby completing tedious actions and meeting the performance action requirements.

Description

Technical Field

[0001] The present invention relates to the field of stage equipment, and in particular to a hoisting universal connecting shaft. Background Art

[0002] Currently, stage supports or trusses can be connected and installed using hinged shafts or connectors. However, these existing hinged shafts or connectors only serve to fix the supports or trusses after installation. That is, once the supports or trusses are connected via the hinged shafts or connectors, they are fixed and cannot be rotated or swung relative to each other. This makes it difficult to adjust the supports or trusses to various stage movements. Summary of the Invention

[0003] The purpose of the present invention is to address the deficiencies of the prior art and provide a hoisting universal connecting shaft to achieve the purpose of realizing the rotation of a bracket or truss in multiple directions to meet the needs of various stage actions.

[0004] The technical solution adopted by the present invention is: a hoisting universal connecting shaft, including a hinge and two connecting parts;

[0005] The connecting member includes a main body block, a rotating block, and a welding block for connecting to a truss or a bracket; one side of the rotating block is hinged to the main body block; the welding block is installed on the other side of the rotating block and can rotate around the center line of the rotating block;

[0006] A matching groove is provided on the side of the main body block away from the rotating block and in the middle thereof, so as to form two ear blocks on both sides of the main body block; a hinge hole is provided on the main body block, the hinge hole vertically passes through the two ear blocks and passes through the matching groove;

[0007] The two connecting members are interlocked and connected with each other, and one of the ear blocks of the connecting member is inserted into the matching groove of the other connecting member so that the hinge holes on the two connecting members are on the same straight line; the hinge member is installed in the hinge holes of the two connecting members to hinge the two connecting members;

[0008] The rotation direction of the two connecting members is perpendicular to the rotation direction of the rotating block on the main body block.

[0009] Furthermore, the hinged part includes a hinge shaft and a nut; the diameter of the hinged shaft is the same as the diameter of the hinge hole, and the hinged shaft is installed in the hinge holes of the two connecting parts to hinge the two connecting parts; a cylindrical locking portion is provided at the upper end of the hinged shaft, and the diameter of the locking portion is larger than the diameter of the hinge hole; the nut is installed at the lower end of the hinged shaft to install the two connecting parts on the hinged shaft.

[0010] Furthermore, the hinged member further comprises a latch; a latch hole is provided at the lower end of the hinged shaft; and the latch pin is inserted into the latch hole.

[0011] Furthermore, a pull ring is provided on the locking portion.

[0012] Furthermore, a slot is provided on one side of the main block connected to the rotating block, the slot being provided on the side of the main block and located in the middle, so as to form two flat blocks on both sides of the main block; a bolt hole is provided on the main block, the bolt hole passes through the two flat blocks and through the slot, and the center line of the bolt hole is perpendicular to the center line of the hinge hole;

[0013] A through hole is provided on the rotating block, and the through hole passes through the rotating block; the rotating block is installed in the slot, and both ends of the through hole are aligned with the bolt hole; a first bolt is provided in the bolt hole, and the first bolt passes through the through hole on the rotating block to realize the hinged connection between the rotating block and the main block.

[0014] Furthermore, a mounting hole is provided on one side of the rotating block along the center line, and a matching hole is provided on the other side of the rotating block along the center line; the matching hole is connected to the mounting hole, and the diameter of the matching hole is larger than the diameter of the mounting hole;

[0015] A second bolt for mounting the welding block is provided on the mounting hole.

[0016] Furthermore, a rotary hole for connecting the second bolt is provided on the welding block; the rotary hole passes through the welding block.

[0017] Furthermore, a gasket is provided between the rotating block and the welding block.

[0018] Furthermore, an adjustment slot is provided on the connecting piece; the adjustment slot is provided on the end surface of one of the ear blocks away from the matching slot.

[0019] Furthermore, the welding block includes a first square block and a second square block; the cross-sectional area of the first square block is larger than the cross-sectional area of the second square block; and the second square block is arranged on the first square block.

[0020] In summary, the present invention has the following beneficial effects: the present invention can be used to hoist a stage support or truss, and use it as an active node to swing up and down, left and right, and twist, so that the support or truss can be adjusted according to various action requirements, thereby completing tedious actions and meeting performance action requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the medical cabinet of the present invention;

[0022] Figure 2 is an exploded view of the connector of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the rotating block of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the hinge of the present invention.

[0025] Among them, 1. Connecting part; 11. Main body block; 111. Flat block; 112. Ear block; 113. Bolt hole; 114. Clamping slot; 115. Hinge hole; 116. Matching slot; 117. Adjustment slot; 12. First bolt; 13. Rotating block; 131. Mounting hole; 132. Through hole; 133. Matching hole; 14. Welding block; 15. Second bolt; 16. Gasket; 2. Hinge; 21. Hinge shaft; 211. Clamping hole; 212. Pull ring; 22. Nut; 23. Pin; 24. Clamping part. DETAILED DESCRIPTION

[0026] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

[0027] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "second" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "second" and "second" may explicitly or implicitly include one or more of such features.

[0028] In the present invention, unless otherwise expressly specified and limited, the second feature being "above" or "below" the second feature may include the second and second features being in direct contact, and may also include the second and second features being in contact not directly but through another feature between them. Moreover, the second feature being "above", "above" and "above" the second feature includes the second feature being directly above and obliquely above the second feature, or simply means that the second feature is higher in level than the second feature. The second feature being "below", "below" and "below" the second feature includes the second feature being directly below and obliquely below the second feature, or simply means that the second feature is lower in level than the second feature. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-4 As shown, the present invention provides a universal joint shaft for hoisting, comprising an articulated member 2 and two connecting members 1, wherein the two connecting members 1 are hingedly connected through the articulated member 2;

[0031] The connector 1 includes a main block 11, a rotating block 13, and a welding block 14; the welding block 14 is used to be fixedly connected (or welded) to the truss or bracket; one side of the rotating block 13 is hinged to the main block 11, so that the rotating block 13 can swing around the main block 11 (swing around the X axis); the welding block 14 is installed on the other side of the rotating block 13 and can rotate around the center line of the rotating block 13 (rotate around the Y axis);

[0032] A mating groove 116 is provided in the middle of the main body block 11 on a side away from the rotating block 13. The mating groove 116 is arranged in the horizontal direction (along the XY plane). By providing the mating groove 116, two ear blocks 112 are formed on the upper and lower sides of the main body block 11. The edges of the ear blocks 112 are annular structures, which are conveniently inserted into the mating groove 116 of another connecting member 1. A hinge hole 115 is provided on the main body block 11. The hinge hole 115 vertically penetrates the two ear blocks 112 from top to bottom along the Z-axis direction and passes through the mating groove 116 between the two ear blocks 112.

[0033] The two connecting members 1 are connected to each other in an interlocking manner, that is, one of the ear blocks 112 of one connecting member 1 is inserted into the matching groove 116 of the other connecting member 1, so that the ear blocks 112 of the two connecting members 1 are interlocked and plugged together (see Figure 1), and make the hinge holes 115 on the two connecting parts 1 on the same straight line; then install the hinge part 2 in the hinge holes 115 of the two connecting parts 1 to hinge the two connecting parts 1, so that the two connecting parts 1 can rotate (rotate around the Z axis); and make the rotation direction of the two connecting parts 1 perpendicular to the rotation direction of the rotating block 13 on the main block 11.

[0034] Therefore, two stage supports or trusses can be connected together through the two connecting members 1. At the same time, the support or truss can be swung in the Z-axis direction through the hinge between the two connecting members 1. The support or truss can be swung in the X-axis direction through the hinge between the main block 11 and the rotating block 13. The support or truss can be rotated in the Y-axis direction by rotating the welding block 14 on the rotating block 13, thereby realizing direction adjustment. This allows the stage support or truss to adjust its direction according to various action requirements after installation, thereby completing tedious actions and meeting the performance action requirements. Moreover, the direction changes between the two connecting members 1 and the various components in the connecting member 1 are not affected by other components, and the direction adjustment can be performed separately without affecting other direction changes.

[0035] In one embodiment, the hinge 2 includes a hinge shaft 21 and a nut 22; the diameter of the hinge shaft 21 is the same as the diameter of the hinge hole 115, and the hinge shaft 21 is installed in the hinge holes 115 of the two connecting parts 1 to enable the two connecting parts 1 to be hinged; a cylindrical locking portion 24 is provided at the upper end of the hinge shaft 21, and the diameter of the locking portion 24 is larger than the diameter of the hinge hole 115. The hinge shaft 21 is stably installed on the hinge hole 115 through the locking portion 24 and will not fall out of the hole; the nut 22 is installed at the lower end of the hinge shaft 21 to install the two connecting parts 1 on the hinge shaft 21, so that the connecting parts 1 can rotate stably around the hinge shaft 21.

[0036] In one embodiment, the hinge 2 further includes a latch 23; a latch hole 211 is provided at the lower end of the hinge shaft 21; the latch 23 is inserted into the latch hole 211, and the latch 23 further plays a fixing role to ensure the stable connection between the hinge shaft 21 and the connecting member 1.

[0037] Furthermore, a pull ring 212 is provided on the locking portion 24 , and the pull ring 212 is used to provide a position so that the user can quickly install the hinge shaft 21 into the hinge hole 115 or extract the hinge shaft 21 from the hinge hole 115 , thereby facilitating the disassembly and assembly of the hinge shaft 21 .

[0038] In one embodiment, a slot 114 is provided on one side of the main block 11 where it is connected to the rotating block 13. The slot 114 is provided in the vertical direction (along the YZ plane) and is located in the middle of the side of the main block 11, so as to form two arc-shaped flat blocks 111 on both sides of the main block 11. A bolt hole 113 is provided on the main block 11. The bolt hole 113 passes through the two flat blocks 111 and the slot 114 along the X-axis direction, and the center line of the bolt hole 113 is perpendicular to the center line of the hinge hole 115.

[0039] A through hole 132 is provided on the rotating block 13, and the through hole 132 passes through the rotating block 13 along the X-axis direction; the rotating block 13 is installed in the slot 114, and both ends of the through hole 132 are aligned with the bolt hole 113; then a first bolt 12 is provided in the bolt hole 113, and the first bolt 12 passes through the through hole 132 on the rotating block 13, thereby connecting the main block 11 and the rotating block 13, and realizing the hinged connection between the rotating block 13 and the main block 11.

[0040] In one embodiment, a mounting hole 131 is provided along the center line on one side of the rotating block 13, and a matching hole 133 is provided along the center line on the other side of the rotating block 13; a second bolt 15 is provided on the mounting hole 131, and the second bolt 15 is used to install the welding block 14, and enable the welding block 14 to rotate on the rotating block 13 around the second bolt 15 (or the center line of the rotating block 13), so that the truss or bracket fixedly connected to the welding block 14 can change direction synchronously.

[0041] The matching hole 133 is connected to the mounting hole 131 , and the diameter of the matching hole 133 is larger than the diameter of the mounting hole 131 ; thus, the second bolt 15 can be installed through the matching hole 133 , making installation easier.

[0042] Furthermore, a rotation hole for connecting the second bolt 15 is provided on the welding block 14 ; the rotation hole passes through the welding block 14 , and the second bolt 15 passes through and rotates to mount the welding block 14 on the rotating block 13 .

[0043] In one embodiment, a gasket 16 is provided between the rotating block 13 and the welding block 14 to adjust the installation position of the welding block 14 so as to ensure stable installation.

[0044] In one embodiment, an adjustment slot 117 is provided on the connector 1; the adjustment slot 117 is provided on the end face of one of the ear blocks 112 away from the matching slot 116. The adjustment slot 117 can make the end face of the corresponding ear block 112 lower than the end face of the side structure, so that after the two connectors 1 are installed together, one of the ear blocks 112 of one connector 1 is located on the adjustment slot 117 of the other connector 1 (see Figure 1 ), so that the upper and lower heights of the two connectors 1 are on the same plane after installation, thereby optimizing the structure of the connector 1 and improving the matching and installation effects.

[0045] In one embodiment, the welding block 14 includes a first square block and a second square block; the cross-sectional area of the first square block is larger than the cross-sectional area of the second square block; the second square block is arranged on the first square block, and the connection structure is optimized by the first square block and the second square block, so that the bracket or truss can be quickly and stably welded or fixedly installed on the welding block 14, so that the angle of the bracket or truss can be adjusted through the rotation of the present invention to meet the requirements of stage movements.

[0046] The present invention can be used to hoist a stage support or truss, and use it as an active node to swing in the up and down, left and right directions, and can be twisted. In this way, the support or truss can be adjusted according to various action requirements, thereby completing complicated actions and meeting performance action needs.

[0047] The X, Y, and Z axes set in the present invention are intended to illustrate the differences in corresponding direction settings and are not intended to be substantial limitations.

[0048] The above description is only a preferred embodiment of the present invention. The present invention is not limited to the above embodiment. There may be local minor structural changes during implementation. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention and fall within the scope of the claims of the present invention and equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A hoisting universal joint shaft, characterized by: It includes a hinge and two connecting parts; The connecting member includes a main body block, a rotating block, and a welding block for connecting to a truss or a bracket; one side of the rotating block is hinged to the main body block; the welding block is installed on the other side of the rotating block and can rotate around the center line of the rotating block; A matching groove is provided on the side of the main body block away from the rotating block and in the middle thereof, so as to form two ear blocks on both sides of the main body block; a hinge hole is provided on the main body block, the hinge hole vertically passes through the two ear blocks and passes through the matching groove; The two connecting members are interlocked and connected with each other, and one of the ear blocks of the connecting member is inserted into the matching groove of the other connecting member so that the hinge holes on the two connecting members are on the same straight line; the hinge member is installed in the hinge holes of the two connecting members to hinge the two connecting members; The rotation direction of the two connecting members is perpendicular to the rotation direction of the rotating block on the main block; The hinged member includes a hinge shaft and a nut; the diameter of the hinge shaft is the same as the diameter of the hinge hole, and the hinge shaft is installed in the hinge holes of the two connecting members to hinge the two connecting members; a cylindrical locking portion is provided at the upper end of the hinge shaft, and the diameter of the locking portion is larger than the diameter of the hinge hole; the nut is installed at the lower end of the hinge shaft to install the two connecting members on the hinge shaft; The hinged member further comprises a latch; a latch hole is provided at the lower end of the hinged shaft; the latch is inserted into the latch hole; A pull ring is provided on the locking portion; A clamping slot is provided on one side where the main block is connected to the rotating block. The clamping slot is provided on the side of the main block and is located in the middle to form two flat blocks on both sides of the main block. A bolt hole is provided on the main block, the bolt hole passes through the two flat blocks and the clamping slot, and the center line of the bolt hole is perpendicular to the center line of the hinge hole. A through hole is provided on the rotating block, and the through hole passes through the rotating block; the rotating block is installed in the slot, and both ends of the through hole are aligned with the bolt hole; a first bolt is provided in the bolt hole, and the first bolt passes through the through hole on the rotating block to realize the hinged connection between the rotating block and the main block.

2. The hoisting universal joint shaft according to claim 1, characterized in that: A mounting hole is provided along the center line on one side of the rotating block, and a matching hole is provided along the center line on the other side of the rotating block; the matching hole is connected to the mounting hole, and the diameter of the matching hole is larger than the diameter of the mounting hole; A second bolt for mounting the welding block is provided on the mounting hole.

3. The hoisting universal joint shaft according to claim 2, characterized in that: A rotary hole for connecting the second bolt is provided on the welding block; the rotary hole passes through the welding block.

4. The hoisting universal joint shaft according to claim 1, characterized in that: A gasket is provided between the rotating block and the welding block.

5. The hoisting universal joint shaft according to claim 1, characterized in that: An adjustment slot is provided on the connecting piece; the adjustment slot is provided on an end surface of one of the ear blocks away from the matching slot.

6. The hoisting universal joint shaft according to claim 1, characterized in that: The welding block includes a first square block and a second square block; the cross-sectional area of the first square block is greater than the cross-sectional area of the second square block; and the second square block is disposed on the first square block.

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