Quick connecting structure for ellipsoid-cutting cabin

Abstract

The invention discloses a quick connecting structure for a truncated ellipsoid cabin, and mainly relates to the technical field of connecting structures. Comprising a connecting structure arranged between two adjacent arc-shaped rods, the connecting structure comprises a first connecting block arranged at the end of one arc-shaped rod and a second connecting block arranged at the end of the adjacent arc-shaped rod, and a T-shaped block is arranged on the second connecting block; the first connecting block is provided with a first T-shaped groove in sliding connection with the T-shaped block and rotationally connected with a transmission shaft, the transmission shaft is provided with a second T-shaped groove in sliding connection with the T-shaped block, the first T-shaped groove and the second T-shaped groove are communicated with each other or form an included angle, the first connecting block is connected with a fixing block in a sliding mode, and the T-shaped block is provided with a fixing groove for the fixing block to penetrate through. The device has the beneficial effects that the problem that the efficiency of assembling and recovering the lagging jack is low is solved, and the efficiency of assembling the safeguard cabin is improved.

Description

Technical Field

[0001] The invention relates to the technical field of connection structures, in particular to a quick connection structure for a truncated ellipsoid cabin. Background Art

[0002] During emergency rescue of natural disasters (such as earthquakes, floods, forest fires, etc.), field work such as geological exploration and oil extraction, and military exercises, helicopters need to be temporarily parked outdoors to quickly transport the wounded, deliver relief supplies, explore geology, and quickly reach designated locations. At this time, it is necessary to build a temporary support cabin for temporarily parking helicopters or other rescue equipment. Currently, there is an ellipsoidal support cabin, which includes two bases connected to the ground, a tent cloth, and several arches. The base is used to fix the entire cabin on the ground, and the arch supports the tent cloth, so that the support cabin is set in a designated area.

[0003] At present, the arch frame generally includes a plurality of arc-shaped rods, and connecting pieces are arranged between the plurality of arc-shaped rods, so that the arch frame can be disassembled into a plurality of parts, which is convenient for transporting the support cabin under various conditions; When the arch frame needs to be assembled, the embedded block provided at the end of the arc rod is inserted into the embedded groove provided in the connecting piece. At the same time, a plurality of protrusions provided on the embedded block are slidably connected with a plurality of grooves provided in the embedded groove, which plays a guiding role in the docking of the arc rod and the connecting piece, thereby preventing the arch frame from deviating from the specified track and affecting the formation of a truncated ellipsoid structure of the arch frame as a whole, thereby improving the overall stability of the temporary hangar; then the bolt is rotated to make its end contact with the embedded block, and the friction force generated by the contact between the bolt and the embedded block limits the movement of the embedded block relative to the connecting piece, thereby realizing the detachable connection between the arc rod and the connecting piece, so that the temporary hangar can be disassembled into several parts, which is convenient for transporting the temporary hangar under various conditions.

[0004] However, each time the arch frame is disassembled and installed using the above method, multiple fixing bolts need to be tightened to release or realize the connection between the connecting parts and the arc rods, thereby disassembling the arch frame into several arc rods or assembling several arc rods into an arch frame, which reduces the efficiency of assembling the support cabin to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to provide a quick connection structure for a truncated ellipsoid cabin, so as to solve the problem of low efficiency in assembling and recovering arch frames and improve the efficiency of assembling a support cabin.

[0006] In order to achieve the above-mentioned purpose, the invention is implemented through the following technical solutions: A quick connection structure for a truncated ellipsoid cabin includes a connection structure arranged between two adjacent arc-shaped rods, the connection structure includes a first connection block arranged at the end of one of the arc-shaped rods, and a second connection block arranged at the end of an adjacent arc-shaped rod, the second connection block is provided with a T-shaped block, the first connection block is provided with a first T-shaped groove slidably connected to the T-shaped block, and is rotatably connected to a transmission shaft, the transmission shaft is provided with a second T-shaped groove slidably connected to the T-shaped block, the first T-shaped groove and the second T-shaped groove are connected to each other or have an angle, the first connection block is slidably connected to a fixed block, and the T-shaped block is provided with a fixed groove for the fixed block to pass through.

[0007] Furthermore, the end of the first connecting block is rotatably connected to a driving shaft, the top of the driving shaft is provided with a sliding groove, the bottom of the transmission shaft is provided with a sliding block slidably connected to the sliding groove, the first connecting block is provided with a first vertical groove and a second vertical groove on both sides, the top of the first vertical groove and the bottom of the second vertical groove, and the top of the second vertical groove and the bottom of the first vertical groove are respectively provided with a first spiral groove and a second spiral groove, there is a certain angle between the first vertical groove and the second vertical groove, the end of the driving shaft is provided with a guide column sliding in the first vertical groove, the first spiral groove, the second vertical groove, and the second spiral groove in sequence, and a first spring is provided between the driving shaft and the first connecting block.

[0008] Furthermore, a push block is slidably connected to the first connecting block, a first inclined surface is provided at the end of the push block, a second inclined surface in contact with the first inclined surface is provided at the top of the driving shaft, a second spring is provided between the push block and the first connecting block, a roller driving the push block to slide on the first connecting block is provided on the second connecting block, a mounting seat is provided on the second connecting block, a vertical rod is slidably connected to the mounting seat, the roller is rotatably arranged on the vertical rod, a third inclined surface in contact with the roller is provided at the end of the push block, a protrusion in contact with the mounting seat is provided on the vertical rod, and a third spring is provided between the protrusion and the mounting seat.

[0009] Furthermore, a handle is provided on one side of the push block, and fourth inclined surfaces contacting the roller are respectively provided on both sides of the push block.

[0010] Furthermore, a limiting block is slidably connected to the fixed block, a limiting groove which is plugged into and cooperates with the limiting block is provided on the first connecting block, fifth inclined surfaces which contact the limiting groove are provided on both sides of the limiting block, and a fourth spring is provided between two adjacent limiting blocks.

[0011] Furthermore, the ends of the first connecting block and the second connecting block are provided with connecting parts which are sleeved on the outside of the arc rod, the ends of the connecting parts are provided with a plurality of elastic blocks which are in contact with the arc rod, the connecting parts are threadedly connected with a tightening block, and the ends of the tightening blocks are provided with a sixth inclined surface which is in contact with the elastic block.

[0012] Furthermore, the arc rod is provided with a plurality of protrusions, the elastic block is provided with a contact portion in contact with the arc rod, the contact portion is provided with an L-shaped groove plug-fitted with the protrusion, and the L-shaped groove is provided with horizontal and vertical sides in sliding contact with the protrusion.

[0013] Furthermore, the gap between adjacent elastic blocks is greater than the width of two sides of the protrusion.

[0014] Furthermore, the arc rod is provided with a plurality of grooves, the elastic block is slidably connected with a plurality of balls that are plugged into the grooves, a fifth spring is provided between the balls and the elastic block, a limiting rod is slidably connected to the elastic block, one end of the limiting rod is provided with a seventh inclined surface that contacts the sixth inclined surface, and the other end of the limiting rod contacts the balls.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the arch frame needs to be assembled, the handle provided on one side of the push block is pushed, and the push block, the first connecting block, the first inclined surface, the driving shaft, and the second inclined surface are cooperated to drive the driving shaft to move downward on the first connecting block, so that the guide column provided on the driving shaft moves downward in the second vertical groove until the guide column moves to the bottom of the second vertical groove, and then the adjacent arc rod is rotated counterclockwise, and the torque is transmitted through the T-shaped block and the transmission shaft to drive the driving shaft to rotate counterclockwise on the first connecting block so that it enters the first spiral groove, and then the adjacent arc rod is further rotated counterclockwise. At the same time, the rebound force generated by the compression of the first spring cooperates with the guidance of the first spiral groove on the guide column to provide a support for the adjacent arc rod to rotate counterclockwise on the first connecting block. The auxiliary force is provided, thereby saving the power required to drive the arc rod to rotate, and no additional power device drive is required, which further reduces the space required for the installation of the connection structure and the manufacturing cost; then the adjacent arc rods are unfolded relative to one of the arc rods, and the two are on the same horizontal plane. At this time, the first T-slots on the first connecting block are interconnected, so that the T-block can be moved from the second T-slot to the first T-slot, so that one of the arc rods forms an arc with the adjacent arc rod, and finally repeat the above steps to alternately unfold the remaining arc rods in the opposite direction, thereby realizing the assembly of the arch frame, and there is no need to tighten multiple fixing bolts throughout the process to realize the switching of the states of the adjacent arc rods, thereby realizing the unfolding of the arch frame, thereby improving the efficiency of assembling the support cabin; 2. Through the cooperation among the fourth spring, the fixed block, the first connecting block, the limiting block, the fifth inclined surface and the limiting groove, the fixed block slides smoothly on the first connecting block, and then the fixed block passes through the fixed groove provided on the T-shaped block. The resistance generated by the contact between the T-shaped block and the fixed groove will limit the movement of the second connecting block on the first connecting block. Then, the limiting block provided on the fixed block will move into the next limiting groove. The resistance generated by the contact between the inclined surfaces provided on both sides of the limiting block and the limiting groove will prevent the fixed block from falling off from the first connecting block, thereby ensuring the stability of the overall structure and improving the supporting effect of the arch frame. 3. When the arch frame needs to be recovered, a force greater than the fourth spring rebound force is applied to the fixed block. Similarly, the fixed block is moved on the first connecting block to pull the fixed block out of the T-shaped block. Then, the second connecting block is moved on the first connecting block. At the same time, through the cooperation between the second connecting block, the roller, the push block and the third inclined surface, the push block is driven to move on the first connecting block until the first inclined surface provided at the other end of the push block contacts the second inclined surface provided at the top end of the driving shaft. The component force generated drives the driving shaft to move downward, so that the guide column provided on the driving shaft moves from the top end of the first vertical groove to the bottom end. Then, since the driving shaft restricts the push block from moving further, the roller will not be able to push the push block to move. Then, through the component force generated by the contact between the roller and the third inclined surface, the vertical rod is driven to move on the mounting seat and the third spring is provided between the compression protrusion and the mounting seat, so that the roller can smoothly pass through the push block, so that the T-shaped block on the second connecting block moves from the first T-shaped groove to the second T-shaped groove. Then, the push block is reset under the action of the rebound force of the second spring to prevent the push block from interfering with the rotation of the driving shaft , ensuring that the second connecting block rotates smoothly on the first connecting block, realizing the closing of the arc rods, and improving the efficiency of subsequent transportation of the arch frame; then, the adjacent arc rods are rotated clockwise, and the torque is transmitted through the T-block and the transmission shaft, driving the drive shaft to rotate clockwise on the first connecting block, so that it enters the second spiral groove, and then the adjacent arc rods are further rotated in the clockwise direction. At the same time, the rebound force generated by the compression of the first spring, combined with the guidance of the second spiral groove on the guide column, provides assistance for the adjacent arc rods to rotate in the clockwise direction on the first connecting block, thereby saving the power required to drive the arc rods to rotate, and no additional power device drive is required, further reducing the space required for the installation of the connection structure and the manufacturing cost; finally, the adjacent arc rods are gradually closed relative to one of the arc rods until the guide column enters the second vertical groove, and the above steps are repeated multiple times to realize the closing of the remaining arc rods, and the switching of the states of the adjacent arc rods can be released without screwing multiple fixing bolts during the whole process, so as to realize the closing of the arch frame, thereby improving the efficiency of assembling the support cabin; 4. After the arch frame is closed, the driving shaft will be driven to move further upward under the action of the first spring rebound force until the guide column moves to the top of the second vertical slot, and the resistance generated by the second vertical slot after contact will limit the first connecting block from rotating on the second connecting block, and the angle between the second T-slot and the first T-slot will be formed to prevent the T-block from sliding from the second T-slot into the first T-slot during the transportation of the arch frame, thereby improving the stability of the overall structure of the arch frame during transportation; 5. When the first connecting block or the second connecting block needs to be installed on the arc rod, the connecting parts provided at the ends of the first connecting block and the second connecting block are first sleeved on the outside of the arc rod, and then the first connecting block or the second connecting block is rotated so that the protrusion provided on the arc rod is aligned with the gap between the adjacent elastic blocks, and then the first connecting block or the second connecting block is moved so that the protrusion enters the gap between the adjacent elastic blocks until the protrusion moves to the horizontal side of the L-shaped block, and then the first connecting block or the second connecting block is rotated and moved in sequence so that the protrusion passes through the horizontal side provided on the L-shaped block and enters the vertical side, and finally the connecting part and the fastener are connected. The cooperation between the block, the sixth inclined surface, and the elastic block drives the elastic block to deform slightly, so that the elastic block contacts the arc rod. The resistance generated after the contact will limit the movement of the first connecting block or the second connecting block on the arc rod, so that the first connecting block or the second connecting block is installed on the arc rod, and the connection between the connecting structure and the arc rod can be achieved without screwing a plurality of fixing bolts, further improving the efficiency of assembling the support cabin. At the same time, the resistance generated after the contact between the protrusion and the horizontal edge will further limit the movement of the first connecting block or the second connecting block relative to the arc rod, thereby improving the stability of the overall structure and the supporting effect of the arch frame; 6. When the first connection block or the second connection block needs to be installed on the arc rod, the connection parts provided at the ends of the first connection block and the second connection block are first sleeved on the outside of the arc rod, and then the first connection block or the second connection block is rotated and moved so that the ball provided on the elastic block is aligned with the groove, and then the tightening block is rotated on the connection part, and the component force generated drives the elastic block to deform slightly, so that the elastic block contacts the arc rod, and the resistance generated after the contact will limit the movement of the first connection block or the second connection block on the arc rod, so that the first connection block or the second connection block is installed on the arc rod, and the connection between the connection structure and the arc rod can be achieved without screwing a plurality of fixing bolts, further improving the efficiency of assembling the support cabin; At the same time, in the process of rotating the tightening block to lock the elastic block, the sixth inclined surface provided at its end contacts the seventh inclined surface provided at one end of the limiting rod, and the generated component force drives the limiting rod to move, so that the other end of the limiting rod contacts the ball and drives it into the groove. The resistance generated by the contact between the ball and the groove further limits the movement of the first connecting block or the second connecting block relative to the arc rod, thereby further improving the stability of the overall structure and the supporting effect of the arch frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the arc rod of the present invention.

[0017] Attached Figure 2 It is a structural schematic diagram of the first connecting block of the present invention.

[0018] Attached Figure 3 It is a schematic diagram of the structure of the cooperation between the first connecting block and the second connecting piece of the present invention.

[0019] Attached Figure 4 It is a structural schematic diagram of the T-shaped block of the present invention.

[0020] Attached Figure 5 It is a structural schematic diagram of the transmission shaft of the present invention.

[0021] Attached Figure 6 It is a structural schematic diagram of the fixing block of the present invention.

[0022] Attached Figure 7 It is a schematic structural diagram of the drive shaft of the present invention.

[0023] Attached Figure 8 It is a schematic structural diagram of the first spiral groove of the present invention.

[0024] Attached Fig. 9 The present invention is attached Figure 4 A partial enlarged view of area A in the middle.

[0025] Attached Fig.10 It is a structural schematic diagram of the tightening block of the present invention.

[0026] Attached Fig.11 It is a schematic structural diagram of the protrusion of the present invention.

[0027] Attached Fig.12 It is a schematic structural diagram of the ball of the present invention.

[0028] Numbers shown in the accompanying drawings: 1. Arc rod; 2. Connection structure; 3. First connection block; 4. Second connection block; 5. T-shaped block; 6. First T-shaped slot; 7. Transmission shaft; 8. Second T-shaped slot; 9. Fixed block; 10. Fixed slot; 11. driving shaft; 12. sliding groove; 13. sliding block; 14. first vertical groove; 15. second vertical groove; 16. first spiral groove; 17. second spiral groove; 18. guide column; 19. first spring; 20. push block; 21. first inclined surface; 22. second inclined surface; 23. second spring; 24. roller; 25. mounting seat; 26. vertical rod; 27. third inclined surface; 28. protrusion; 29. ​​third spring; 30. handle; 31. fourth inclined surface; 32. Limit block; 33. Limit groove; 34. Fifth inclined surface; 35. Fourth spring; 36. Connecting part; 37. Elastic block; 38. Tightening block; 39. Sixth inclined surface; 40. Protrusion; 41. Contact part; 42. L-shaped groove; 43. Horizontal side; 44. Vertical side; 45. Groove; 46. Ball; 47. Fifth spring; 48. Limit rod; 49. Seventh inclined surface. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0030] The present invention provides a quick connection structure for a truncated ellipsoid cabin, such as Figure 1-Figure 6 As shown, it includes a connecting structure 2 arranged between two adjacent arc-shaped rods 1, the connecting structure 2 includes a first connecting block 3 arranged at the end of one of the arc-shaped rods 1, and a second connecting block 4 arranged at the end of the adjacent arc-shaped rod 1, the second connecting block 4 is provided with a T-shaped block 5, the first connecting block 3 is provided with a first T-shaped groove 6 slidably connected to the T-shaped block 5, and is rotatably connected to a transmission shaft 7, the transmission shaft 7 is provided with a second T-shaped groove 8 slidably connected to the T-shaped block 5, the first T-shaped groove 6 and the second T-shaped groove 8 are connected to each other or have an angle, and when in the closed state, a plurality of arc-shaped rods 1 are alternately folded. When stacked together, the T-shaped block 5 provided on the second connecting block 4 is located in the second T-shaped groove 8, and at the same time, there is an angle between the second T-shaped groove 8 and the first T-shaped groove 6, so as to prevent the T-shaped block 5 from sliding from the second T-shaped groove 8 into the first T-shaped groove 6 during the transportation of the arch frame, thereby improving the stability of the overall structure during transportation; when in the unfolded state, a plurality of arc-shaped rods 1 are unfolded from each other and are located on the same plane, and the T-shaped block 5 provided on the second connecting block 4 is located in the first T-shaped groove 6, and at the same time, the second T-shaped groove 8 and the first T-shaped groove 6 are connected to each other, so that the T-shaped block 5 can slide between the two, which is convenient for the subsequent unfolding or closing of the arch frame; When the T-shaped block 5 provided on the second connecting block 4 is located in the second T-shaped groove 8, the state between the arc-shaped rods 1 is changed by rotating the transmission shaft 7, so that the arc-shaped rods 1 are switched from the expanded state to the closed state, or from the closed state to the expanded state, thereby realizing the expansion or closure of the arch frame, and the switching of the states of adjacent arc-shaped rods 1 can be realized without screwing a plurality of fixing bolts, thereby improving the efficiency of assembling the support cabin; The first connecting block 3 is slidably connected with a fixing block 9, and the T-shaped block 5 is provided with a fixing groove 10 for the fixing block 9 to pass through. The resistance generated by the contact between the fixing block 9 and the fixing groove 10 will limit the movement of the second connecting block 4 on the first connecting block 3, thereby improving the stability of the overall structure and further improving the supporting effect of the arch frame.

[0031] Preferably, Figure 4 , Figure 7 and Figure 8 As shown, the end of the first connecting block 3 is rotatably connected to a driving shaft 11, a slide groove 12 is provided at the top of the driving shaft 11, and a slider 13 slidably connected to the slide groove 12 is provided at the bottom of the transmission shaft 7, so that the driving shaft 11 drives the transmission shaft 7 to rotate, and the driving shaft 11 can slide relative to the transmission shaft 7; the first connecting block 3 is provided with a first vertical groove 14 and a second vertical groove 15 on both sides, and a first spiral groove 16 and a second spiral groove 17 are provided between the top of the first vertical groove 14 and the bottom of the second vertical groove 15, and between the top of the second vertical groove 15 and the bottom of the first vertical groove 14. The second spiral groove 17, there is a certain angle between the first vertical groove 14 and the second vertical groove 15, so that the closing and unfolding angles are not 180 degrees, ensuring that after the arc rod 1 is closed, there is an angle between the first T-shaped groove 6 and the second T-shaped groove 8, limiting the T-shaped block 5 from sliding into the second T-shaped groove 8, further improving the overall stability of the arch during transportation; the end of the driving shaft 11 is provided with a guide column 18 that slides in the first vertical groove 14, the first spiral groove 16, the second vertical groove 15, and the second spiral groove 17 in sequence, and a first spring is provided between the driving shaft 11 and the first connecting block 3 19, when the second connecting block 4 is rotated relative to the first connecting block 3, the rebound force generated by the compression of the first spring 19, in conjunction with the guidance of the first spiral groove 16 or the second spiral groove 17 on the guide column 18, provides assistance for the second connecting block 4 to rotate on the first connecting block 3, thereby saving the power required to drive the arc rod 1 to rotate, and no additional power device is required to drive, further reducing the space required for the installation of the connecting structure 2 and the manufacturing cost required; when the adjacent arc rods 1 are gradually closed or expanded relative to one of the arc rods 1, until the guide column 18 enters the second vertical groove 15 or the first vertical groove 16, the second connecting block 4 is rotated on the first connecting block 3. The guide post 18 is in a vertical groove 14, and under the action of the rebound force of the first spring 19, the driving shaft 11 will be driven to move further upward until the guide post 18 moves to the top of the first vertical groove 14 or the second vertical groove 15. The resistance generated by the contact between the guide post 18 and the first vertical groove 14 or the second vertical groove 15 will limit the rotation of the first connecting block 3 on the second connecting block 4, and the angle between the second T-shaped groove 8 and the first T-shaped groove 6 will be combined to prevent the T-shaped block 5 from sliding from the second T-shaped groove 8 into the first T-shaped groove 6 during the transportation of the arch frame, thereby improving the stability of the overall structure of the arch frame during transportation.

[0032] Preferably, Figure 4 and Fig. 9As shown, a push block 20 is slidably connected to the first connecting block 3, and a first inclined surface 21 is provided at the end of the push block 20. A second inclined surface 22 in contact with the first inclined surface 21 is provided on the top of the driving shaft 11. A second spring 23 is provided between the push block 20 and the first connecting block 3. A roller 24 for driving the push block 20 to slide on the first connecting block 3 is provided on the second connecting block 4. When the arch frame needs to be recovered, when the second connecting block 4 is moved relative to the first connecting block 3, the T-block enters the second T-slot from the first T-slot, and drives the push block 20 to slide on the first connecting block 3 through the roller 24 until the first inclined surface 21 provided at the other end of the push block 20 contacts the second inclined surface 22 provided at the top of the driving shaft 11, and the component force generated drives The driving shaft 11 moves downward, so that the guide column 18 provided on the driving shaft 11 moves from the top end of the first vertical groove 14 to the bottom end, and then the adjacent arc rod 1 is rotated clockwise, and the torque is transmitted through the T-shaped block 5 and the transmission shaft 7, driving the driving shaft 11 to rotate clockwise on the first connecting block 3, so that it enters the second spiral groove 17, and then the adjacent arc rod 1 is further rotated in the clockwise direction, so that the adjacent arc rods 1 are gradually closed relative to one of the arc rods 1, until the guide column 18 enters the second vertical groove 15, and the above steps are repeated multiple times to achieve the closing of the remaining arc rods 1, and the switching of the states of the adjacent arc rods 1 can be released without screwing multiple fixing bolts during the whole process, so as to achieve the closing of the arch frame, thereby improving the efficiency of assembling the support cabin; The second connecting block 4 is provided with a mounting seat 25, and a vertical rod 26 is slidably connected to the mounting seat 25. The roller 24 is rotatably arranged on the vertical rod 26. The end of the push block 20 is provided with a third inclined surface 27 in contact with the roller 24. The vertical rod 26 is provided with a protrusion 28 in contact with the mounting seat 25. A third spring 29 is provided between the protrusion 28 and the mounting seat 25. When the second connecting block 4 is moved on the first connecting block 3, the roller 24 provided on the second connecting block 4 contacts the third inclined surface 27 provided on the end of the push block 20, and the component force generated drives the push block 20 to move on the first connecting block 3, and drives the driving shaft 11 to move downward, so that it slides in the second vertical groove 15 until the push block 20 is moved. When it moves to the lowest end, it will limit the further movement of the push block 20, and the roller 24 will not be able to push the push block 20 to move. Subsequently, the component force generated by the contact between the roller 24 and the third inclined surface 27 drives the vertical rod 26 to move on the mounting seat 25, and compresses the third spring 29 provided between the protrusion 28 and the mounting seat 25, so that the roller 24 can smoothly pass through the push block 20, allowing the T-shaped block 5 on the second connecting block 4 to move from the first T-shaped groove 6 to the second T-shaped groove 8, and then the push block 20 is reset under the action of the rebound force of the second spring 23, thereby avoiding the push block 20 interfering with the rotation of the drive shaft 11, ensuring that the second connecting block 4 can rotate smoothly on the first connecting block 3, realizing the closing of the arc rod 1, and improving the efficiency of subsequent transportation of the arch frame.

[0033] Preferably, Figure 4 and Figure 6 As shown, a handle 30 is provided on one side of the push block 20, which is convenient for driving the driving shaft 11 to move downward during the process of unfolding the arch frame, thereby improving the efficiency of unfolding the arch frame; fourth inclined surfaces 31 in contact with the roller 24 are provided on both sides of the push block 20, and during the process of unfolding the arc rod 1, the roller 24 contacts the fourth inclined surfaces 31 provided on both sides of the push block 20, so that the roller 24 can be smoothly retracted, thereby avoiding interference between the two and affecting the smooth unfolding of the arch frame.

[0034] Preferably, Figure 5 and Figure 6 As shown, the fixed block 9 is slidably connected to the limit block 32, the first connecting block 3 is provided with a limit groove 33 plugged with the limit block 32, both sides of the limit block 32 are respectively provided with fifth inclined surfaces 34 in contact with the limit groove 33, and a fourth spring 35 is provided between two adjacent limit blocks 32. The fifth inclined surfaces 34 provided on both sides of the limit block 32 are respectively in contact with the limit groove 33, and the component force generated drives the limit block 32 to move inward and compresses the fourth spring 35, so that the fixed block 9 can be smoothly moved in the first The fixing block 9 then passes through the fixing groove 10 provided on the T-shaped block 5. The resistance generated by the contact between the T-shaped block 5 and the fixing groove 10 will limit the movement of the second connecting block 4 on the first connecting block 3. Subsequently, the limiting block 32 provided on the fixing block 9 will move into the next limiting groove 33. The resistance generated by the contact between the inclined surfaces provided on both sides of the limiting block 32 and the limiting groove 33 will prevent the fixing block 9 from falling off the first connecting block 3, thereby ensuring the stability of the overall structure and improving the supporting effect of the arch frame.

[0035] Preferably, Fig.10 and Fig.11 As shown, the ends of the first connecting block 3 and the second connecting block 4 are both provided with a connecting portion 36 sleeved on the outside of the arc rod 1, and the ends of the connecting portion 36 are provided with a plurality of elastic blocks 37 in contact with the arc rod 1. A tightening block 38 is threadedly connected to the connecting portion 36, and the end of the tightening block 38 is provided with a sixth inclined surface 39 in contact with the elastic block 37. After the connecting portion 36 provided at the ends of the first connecting block 3 and the second connecting block 4 is sleeved on the outside of the arc rod 1, the tightening block 38 is then rotated to contact the elastic block 37 through the sixth inclined surface 39 provided on one side of the tightening block 38. The component force generated after the contact will drive the elastic block 37 to deform slightly, so that the elastic block 37 contacts the arc rod 1. The resistance generated after the contact will limit the movement of the first connecting block 3 or the second connecting block 4 on the arc rod 1, thereby realizing the connection between the connecting structure 2 and the arc rod 1. The connection between the connecting structure 2 and the arc rod 1 can be realized without screwing a plurality of fixing bolts, thereby further improving the efficiency of assembling the support cabin.

[0036] Preferably, Fig.10 and Fig.11 As shown, the arc rod 1 is provided with a plurality of protrusions 40, the elastic block 37 is provided with a contact portion 41 that contacts the arc rod 1, the contact portion 41 is provided with an L-shaped groove 42 that is plugged and matched with the protrusion 40, and the L-shaped groove 42 is provided with a horizontal side 43 and a vertical side 44 that are in sliding contact with the protrusion 40. After the protrusion 40 is moved to the horizontal side 43 of the L-shaped block, the first connecting block 3 or the second connecting block 4 is rotated and moved in sequence, so that the protrusion 40 passes through the horizontal side 43 provided on the L-shaped block and enters the vertical side 44. Finally, the tightening block 38 is rotated on the connecting portion 36 so that the sixth inclined surface 39 provided at the end of the tightening block 38 is in contact with the elastic block 37. The component force generated by the contact drives the elastic block 37 to deform slightly, so that the elastic block 37 contacts the arc rod 1. The resistance generated after the contact will limit the movement of the first connecting block 3 or the second connecting block 4 on the arc rod 1, so that the first connecting block 3 or the second connecting block 4 is installed on the arc rod 1, and the connection between the connecting structure 2 and the arc rod 1 can be achieved without screwing a plurality of fixing bolts, thereby further improving the efficiency of assembling the support cabin. At the same time, the resistance generated after the protrusion 40 contacts the horizontal edge 43 will further limit the movement of the first connecting block 3 or the second connecting block 4 relative to the arc rod 1, thereby improving the stability of the overall structure and the supporting effect of the arch frame.

[0037] Preferably, Fig.10 As shown, the gap between adjacent elastic blocks 37 is larger than the width of both sides of the protrusion 40 , so that the protrusion 40 can pass through the gap between adjacent elastic blocks 37 and smoothly enter the L-shaped groove 42 .

[0038] Preferably, Fig.10 and Fig.12 As shown, the arc rod 1 is provided with a plurality of grooves 45, and the elastic block 37 is slidably connected with a plurality of balls 46 that are plugged and matched with the grooves 45. A fifth spring 47 is provided between the ball 46 and the elastic block 37, and a limiting rod 48 is slidably connected to the elastic block 37. One end of the limiting rod 48 is provided with a seventh inclined surface 49 that contacts the sixth inclined surface 39, and the other end of the limiting rod 48 contacts the ball 46. In the process of rotating the tightening block 38 to lock the elastic block 37, the sixth inclined surface 39 provided at its end contacts the seventh inclined surface 49 provided at one end of the limiting rod 48, and the component force generated drives the limiting rod 48 to move, so that the other end of the limiting rod 48 contacts the ball 46 and drives it to enter the groove 45, and through the resistance generated by the contact between the ball 46 and the groove 45, the first connecting block 3 or the second connecting block 4 is further limited from moving relative to the arc rod 1, thereby further improving the stability of the overall structure and the supporting effect of the arch frame.

[0039] Example 1 The present invention provides a quick connection structure for a truncated ellipsoid cabin, such as Figure 1-Figure 6As shown, the first connecting block 3 and the second connecting member are respectively arranged at the end of one of the arc-shaped rods 1 and the adjacent arc-shaped rod 1 in advance; When the arch frame needs to be assembled, the second connecting piece is rotated relative to the first connecting block 3, and the first T-shaped groove 6 provided on the transmission shaft 7 contacts the T-shaped block 5. The component force generated will drive the transmission shaft 7 to rotate on the first connecting block 3 until the adjacent arc-shaped rods 1 are unfolded relative to one of the arc-shaped rods 1, and the two are in the same horizontal plane. At this time, the first T-shaped grooves 6 on the first connecting block 3 are connected to each other, so that the T-shaped block 5 can be moved from the second T-shaped groove 8 to the first T-shaped groove 6 until one of the arc-shaped rods 1 forms an arc with the adjacent arc-shaped rod 1. Then, the fixing block 9 is slid on the first connecting block 3 so that the fixing block 9 passes through the fixing groove 10 provided on the T-shaped block 5. The resistance generated by the contact between the fixing block 9 and the fixing groove 10 will limit the movement of the second connecting block 4 on the first connecting block 3, thereby improving the stability of the overall structure and the supporting effect of the arch frame. Finally, the above steps are repeated to alternately unfold the remaining arc-shaped rods 1 in reverse, thereby realizing the assembly of the arch frame. The switching of the states of the adjacent arc-shaped rods 1 can be realized without screwing multiple fixing bolts, thereby improving the efficiency of assembling the support cabin. When the arch frame needs to be recovered, move the fixing block 9 on the first connecting block 3, pull the fixing block 9 out from the T-shaped block 5, and then move the second connecting block 4 on the first connecting block 3, so that the T-shaped block 5 on the second connecting block 4 moves from the first T-shaped slot 6 to the second T-shaped slot 8, and then rotate the second connecting block 4 on the first connecting block 3, driving the transmission shaft 7 to rotate on the first connecting block 3 until the adjacent arc rods 1 are close to one of the arc rods 1, and at the same time, there is an angle between the second T-shaped slot 8 and the first T-shaped slot 6, so as to prevent the T-shaped block 5 from sliding from the second T-shaped slot 8 into the first T-shaped slot 6 during the transportation of the arch frame, thereby improving the stability of the overall structure during transportation. In addition, there is no need to screw multiple fixing bolts to release the switching of the arc rod 1 state, realize the closing of the arch frame, and thereby improve the efficiency of assembling the support cabin.

[0040] Example 2 On the basis of Example 1, Figure 4-Figure 9As shown, when the arch frame needs to be assembled, the handle 30 provided on one side of the push block 20 is pushed to drive the push block 20 to slide on the first connecting block 3, so that the first inclined surface 21 provided on the end of the push block 20 contacts the second inclined surface 22 provided on the top of the drive shaft 11, and the generated component force will drive the drive shaft 11 to move downward on the first connecting block 3, so that the guide column 18 provided on the drive shaft 11 moves downward in the second vertical groove 15 until the guide column 18 moves to the bottom of the second vertical groove 15, and then the adjacent arc rod 1 is rotated counterclockwise, and the torque is transmitted through the T-shaped block 5 and the transmission shaft 7, so as to drive the drive shaft 11 to rotate counterclockwise on the first connecting block 3. It enters the first spiral groove 16, and then further rotates the adjacent arc rod 1 in the counterclockwise direction. At the same time, the rebound force generated by the compression of the first spring 19, together with the guidance of the first spiral groove 16 on the guide column 18, provides assistance for the adjacent arc rod 1 to rotate in the counterclockwise direction on the first connecting block 3, thereby saving the power required to drive the arc rod 1 to rotate, and no additional power device drive is required, further reducing the space required for the installation of the connecting structure 2 and the manufacturing cost required; then the adjacent arc rod 1 is unfolded relative to one of the arc rods 1, and the two are on the same horizontal plane. At this time, the first T-slots 6 on the first connecting block 3 are connected to each other. , so that the T-shaped block 5 can be moved from the second T-shaped groove 8 to the first T-shaped groove 6, so that one of the arc-shaped rods 1 forms an arc with the adjacent arc-shaped rod 1, and then a force that overcomes the rebound force of the fourth spring 35 is applied to the fixed block 9, so that the fixed block 9 slides on the first connecting block 3, and contacts the limiting groove 33 respectively through the fifth inclined surfaces 34 provided on both sides of the limiting block 32, and the generated component force drives the limiting block 32 to move inward and compresses the fourth spring 35, so that the fixed block 9 slides smoothly on the first connecting block 3, and then the fixed block 9 passes through the fixing groove 10 provided on the T-shaped block 5, and the fixing groove 10 is contacted by the T-shaped block 5. The resistance generated will limit the movement of the second connecting block 4 on the first connecting block 3, and then the limit block 32 provided on the fixing block 9 will move into the next limit groove 33. The resistance generated by the contact between the inclined surfaces provided on both sides of the limit block 32 and the limit groove 33 will prevent the fixing block 9 from falling off from the first connecting block 3, thereby ensuring the stability of the overall structure and improving the supporting effect of the arch frame; finally, repeat the above steps to alternately unfold the remaining arc rods 1 in the opposite direction, so as to realize the assembly of the arch frame, and there is no need to tighten multiple fixing bolts throughout the process to realize the switching of the states of adjacent arc rods 1, thereby realizing the unfolding of the arch frame, thereby improving the efficiency of assembling the support cabin; When the arch needs to be recovered, a force greater than the rebound force of the fourth spring 35 is applied to the fixed block 9. Similarly, the fixed block 9 is moved on the first connecting block 3 to pull the fixed block 9 out of the T-shaped block 5. Then, the second connecting block 4 is moved on the first connecting block 3. At the same time, the roller 24 provided on the second connecting block 4 contacts the third inclined surface 27 provided on the end of the push block 20. The component force generated drives the push block 20 to move on the first connecting block 3 until the first inclined surface 21 provided on the other end of the push block 20 contacts the second inclined surface 22 provided on the top end of the drive shaft 11. The component force generated drives the drive shaft 11 downward. The guide post 18 provided on the driving shaft 11 moves from the top end to the bottom end of the first vertical slot 14. Then, because the driving shaft 11 limits the further movement of the push block 20, the roller 24 will not be able to push the push block 20 to move. Then, the component force generated by the contact between the roller 24 and the third inclined surface 27 drives the vertical rod 26 to move on the mounting seat 25 and compresses the third spring 29 provided between the protrusion 28 and the mounting seat 25, so that the roller 24 can smoothly pass through the push block 20, so that the T-shaped block 5 on the second connecting block 4 moves from the first T-shaped slot 6 to the second T-shaped slot 8. Then, the push block 20 is pushed on the second spring 29. 3 is reset under the action of the rebound force, so as to avoid the push block 20 interfering with the rotation of the drive shaft 11, and ensure that the second connecting block 4 rotates smoothly on the first connecting block 3, so as to realize the closing of the arc rod 1 and improve the efficiency of the subsequent transportation of the arch frame; then the adjacent arc rod 1 is rotated clockwise, and the torque is transmitted through the T-block 5 and the transmission shaft 7, so as to drive the drive shaft 11 to rotate clockwise on the first connecting block 3, so that it enters the second spiral groove 17, and then the adjacent arc rod 1 is further rotated in the clockwise direction. At the same time, the rebound force generated by the compression of the first spring 19, in conjunction with the guidance of the second spiral groove 17 to the guide column 18, is The arc rod 1 rotates on the first connecting block 3 in a clockwise direction to provide assistance, thereby saving the power required to drive the arc rod 1 to rotate, and no additional power device is required to drive it, further reducing the space required for the installation of the connection structure 2 and the manufacturing cost required; finally, the adjacent arc rods 1 are gradually closed relative to one of the arc rods 1 until the guide column 18 enters the second vertical groove 15, and the above steps are repeated multiple times to achieve the closing of the remaining arc rods 1, and the switching of the states of the adjacent arc rods 1 can be released without screwing multiple fixing bolts during the whole process, and the closing of the arch frame can be achieved, thereby improving the efficiency of assembling the support cabin; After the arch frame is closed, the driving shaft 11 will be driven to move further upward under the action of the rebound force of the first spring 19 until the guide column 18 moves to the top of the second vertical slot 15, and the resistance generated by the contact of the second vertical slot 15 will limit the rotation of the first connecting block 3 on the second connecting block 4, and the angle between the second T-slot 8 and the first T-slot 6 will be combined to prevent the T-block 5 from sliding from the second T-slot 8 into the first T-slot 6 during the transportation of the arch frame, thereby improving the stability of the overall structure of the arch frame during transportation.

[0041] Example 3 On the basis of Example 1, Fig.10 and Fig.11 As shown, when the first connecting block 3 or the second connecting block 4 needs to be installed on the arc rod 1, the connecting portion 36 provided at the end of the first connecting block 3 and the second connecting block 4 is first sleeved on the outside of the arc rod 1, and then the first connecting block 3 or the second connecting block 4 is rotated so that the protrusion 40 provided on the arc rod 1 is aligned with the gap between the adjacent elastic blocks 37, and then the first connecting block 3 or the second connecting block 4 is moved so that the protrusion 40 enters the gap between the adjacent elastic blocks 37 until the protrusion 40 moves to the horizontal side 43 of the L-shaped block, and then the first connecting block 3 or the second connecting block 4 is rotated and moved in sequence so that the protrusion 40 passes through the horizontal side 43 provided on the L-shaped block and enters the vertical side 44, and finally the tightening block is rotated on the connecting portion 36. 38, so that the sixth inclined surface 39 provided at the end of the tightening block 38 contacts the elastic block 37, and the generated component force drives the elastic block 37 to deform slightly, so that the elastic block 37 contacts the arc rod 1, and the resistance generated after the contact will limit the movement of the first connecting block 3 or the second connecting block 4 on the arc rod 1, so that the first connecting block 3 or the second connecting block 4 is installed on the arc rod 1, and the connection between the connecting structure 2 and the arc rod 1 can be achieved without screwing a plurality of fixing bolts, further improving the efficiency of assembling the support cabin, and at the same time, the resistance generated after the protrusion 40 contacts the horizontal edge 43 will further limit the movement of the first connecting block 3 or the second connecting block 4 relative to the arc rod 1, thereby improving the stability of the overall structure and the supporting effect of the arch frame.

[0042] Example 4 On the basis of Example 1, Fig.10 and Fig.12 As shown, when the first connection block 3 or the second connection block 4 needs to be installed on the arc rod 1, the connection portion 36 provided at the end of the first connection block 3 and the second connection block 4 is first sleeved on the outside of the arc rod 1, and then the first connection block 3 or the second connection block 4 is rotated and moved so that the ball 46 provided on the elastic block 37 is aligned with the groove 45, and then the tightening block 38 is rotated on the connection portion 36, and the component force generated drives the elastic block 37 to deform slightly, so that the elastic block 37 contacts the arc rod 1, and the resistance generated after the contact will limit the movement of the first connection block 3 or the second connection block 4 on the arc rod 1, so that the first connection block 3 or the second connection block 4 is installed on the arc rod 1, and the connection structure 2 and the arc rod 1 can be connected without screwing a plurality of fixing bolts, further improving the efficiency of assembling the support cabin; At the same time, in the process of rotating the tightening block 38 to lock the elastic block 37, the sixth inclined surface 39 provided at its end contacts the seventh inclined surface 49 provided at one end of the limiting rod 48, and the generated component force drives the limiting rod 48 to move, so that the other end of the limiting rod 48 contacts the ball 46 and drives it into the groove 45. The resistance generated by the contact between the ball 46 and the groove 45 further limits the movement of the first connecting block 3 or the second connecting block 4 relative to the arc rod 1, thereby further improving the stability of the overall structure and the supporting effect of the arch frame.

Claims

1. A quick connection structure for a truncated ellipsoid cabin, comprising a connection structure (2) arranged between two adjacent arc-shaped rods (1), characterized in that: The connection structure (2) comprises a first connection block (3) arranged at the end of one of the arc-shaped rods (1), and a second connection block (4) arranged at the end of an adjacent arc-shaped rod (1); the second connection block (4) is provided with a T-shaped block (5); the first connection block (3) is provided with a first T-shaped groove (6) slidably connected to the T-shaped block (5); and a transmission shaft (7) is rotatably connected thereto; the transmission shaft (7) is provided with a second T-shaped groove (8) slidably connected to the T-shaped block (5); the first T-shaped groove (6) and the second T-shaped groove (8) are interconnected or have an angle; the first connection block (3) is slidably connected to a fixing block (9); and the T-shaped block (5) is provided with a fixing groove (10) for the fixing block (9) to pass through.

2. A quick connection structure for a truncated ellipsoid cabin according to claim 1, characterized in that: The end of the first connecting block (3) is rotatably connected to a driving shaft (11); a sliding groove (12) is provided at the top of the driving shaft (11); a sliding block (13) slidably connected to the sliding groove (12) is provided at the bottom of the transmission shaft (7); a first vertical groove (14) and a second vertical groove (15) are provided on both sides of the first connecting block (3); a first spiral groove (16) and a second spiral groove (17) are provided between the top of the first vertical groove (14) and the bottom of the second vertical groove (15), and between the top of the second vertical groove (15) and the bottom of the first vertical groove (14); a certain angle exists between the first vertical groove (14) and the second vertical groove (15); a guide column (18) is provided at the end of the driving shaft (11) and slides in the first vertical groove (14), the first spiral groove (16), the second vertical groove (15), and the second spiral groove (17) in sequence; and a first spring (19) is provided between the driving shaft (11) and the first connecting block (3).

3. A quick connection structure for a truncated ellipsoid cabin according to claim 2, characterized in that: A push block (20) is slidably connected to the first connecting block (3); a first inclined surface (21) is provided at an end of the push block (20); a second inclined surface (22) in contact with the first inclined surface (21) is provided at the top of the driving shaft (11); a second spring (23) is provided between the push block (20) and the first connecting block (3); a roller (24) for driving the push block (20) to slide on the first connecting block (3) is provided on the second connecting block (4); a mounting seat (25) is provided on the second connecting block (4); a vertical rod (26) is slidably connected to the mounting seat (25); the roller (24) is rotatably arranged on the vertical rod (26); a third inclined surface (27) in contact with the roller (24) is provided at an end of the push block (20); a convex block (28) in contact with the mounting seat (25) is provided on the vertical rod (26); a third spring (29) is provided between the convex block (28) and the mounting seat (25).

4. A quick connection structure for a truncated ellipsoid cabin according to claim 3, characterized in that: A handle (30) is provided on one side of the push block (20), and fourth inclined surfaces (31) in contact with the roller (24) are respectively provided on both sides of the push block (20).

5. The quick connection structure for a truncated ellipsoid cabin according to claim 1, characterized in that: The fixed block (9) is slidably connected to a limit block (32); the first connection block (3) is provided with a limit groove (33) pluggably engaged with the limit block (32); both sides of the limit block (32) are respectively provided with fifth inclined surfaces (34) in contact with the limit groove (33); and a fourth spring (35) is provided between two adjacent limit blocks (32).

6. The quick connection structure for a truncated ellipsoid cabin according to claim 1, characterized in that: The ends of the first connecting block (3) and the second connecting block (4) are both provided with a connecting portion (36) sleeved on the outside of the arc-shaped rod (1); the ends of the connecting portion (36) are provided with a plurality of elastic blocks (37) in contact with the arc-shaped rod (1); a tightening block (38) is threadedly connected to the connecting portion (36); and the ends of the tightening block (38) are provided with a sixth inclined surface (39) in contact with the elastic block (37).

7. A quick connection structure for a truncated ellipsoid cabin according to claim 6, characterized in that: The arc-shaped rod (1) is provided with a plurality of protrusions (40), the elastic block (37) is provided with a contact portion (41) in contact with the arc-shaped rod (1), the contact portion (41) is provided with an L-shaped groove (42) plug-fitted with the protrusion (40), and the L-shaped groove (42) is provided with a horizontal side (43) and a vertical side (44) in sliding contact with the protrusion (40).

8. The quick connection structure for a truncated ellipsoid cabin according to claim 7, characterized in that: The gap between adjacent elastic blocks (37) is greater than the width of two sides of the protrusion (40).

9. The quick connection structure for a truncated ellipsoid cabin according to claim 6, characterized in that: The arc-shaped rod (1) is provided with a plurality of grooves (45), the elastic block (37) is slidably connected with a plurality of balls (46) plugged into and matched with the grooves (45), a fifth spring (47) is provided between the balls (46) and the elastic block (37), a limiting rod (48) is slidably connected with the elastic block (37), one end of the limiting rod (48) is provided with a seventh inclined surface (49) in contact with the sixth inclined surface (39), and the other end of the limiting rod (48) is in contact with the balls (46).

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