A quick connection structure for an intercepted ellipsoidal cabin

Abstract

The present invention discloses a quick connection structure for an intercepted ellipsoidal cabin, mainly relating to the technical field of connection structures. It 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 the adjacent arc-shaped rod. A T-shaped block is provided on the second connection block. A first T-shaped groove slidably connected to the T-shaped block, and a transmission shaft rotatably connected are provided on the first connection block. A second T-shaped groove slidably connected to the T-shaped block is provided on the transmission shaft. The first T-shaped groove and the second T-shaped groove communicate with each other or form an angle. A fixing block is slidably connected to the first connection block. A fixing groove for the fixing block to pass through is provided on the T-shaped block. The beneficial effect of the present invention lies in: solving the problem of low efficiency in assembling and recycling the arch frame, and improving the efficiency of assembling the protection cabin.

Description

Technical Field

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

[0002] During emergency rescue of natural disasters (such as earthquakes, floods, forest fires, etc.), during field work such as geological exploration and oil extraction, and during military drills, helicopters need to be parked temporarily outdoors in order to quickly transport the wounded, deliver rescue supplies, explore geology, and quickly reach the designated locations. At this time, it is necessary to set up a temporary support cabin for temporarily parking helicopters or other rescue equipment. Currently, there is an oblate ellipsoid support cabin, which includes two bases connected to the ground, a tent cloth, and several arch frames. The whole is fixedly arranged on the ground through the bases, and the tent cloth is supported by the arch frames, so as to set up the support cabin in the designated area.

[0003] Currently, the arch frame generally includes several arc-shaped rods, and there are connecting pieces between several arc-shaped rods, so that the arch frame can be disassembled into several parts, which is convenient for transporting the support cabin under various conditions;

[0004] When it is necessary to assemble the arch frame, the insertion blocks provided at the ends of the arc-shaped rods are inserted into the insertion grooves provided in the connecting pieces. At the same time, several protrusions provided on the insertion blocks are slidably connected with several grooves provided in the insertion grooves, which plays a guiding role in the docking of the arc-shaped rods and the connecting pieces, avoids the arch frame deviating from the designated track, affects the overall formation of the oblate ellipsoid structure of the arch frame, and improves the overall stability of the temporary hangar; then turn the bolt so that its end contacts the insertion block, and through the frictional force generated after the bolt contacts the insertion block, restrict the relative movement of the insertion block with respect to the connecting piece, thereby realizing the detachable connection between the arc-shaped 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.

[0005] However, when disassembling and installing the arch frame in the above manner each time, it is necessary to turn multiple fixing bolts to release or realize the connection between the connecting piece and the arc-shaped rod, so as to disassemble the arch frame into several arc-shaped rods or assemble several arc-shaped rods into an arch frame, which reduces the efficiency of assembling the support cabin to a certain extent. Summary of the Invention

[0006] The purpose of the present invention is to provide a quick connection structure for an oblate ellipsoid cabin, solve the problem of low efficiency in assembling and recycling the arch frame, and improve the efficiency of assembling the support cabin.

[0007] The invention is achieved by the following technical solutions to realize the above purpose:

[0008] A quick connection structure for a truncated ellipsoidal cabin, including 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 the adjacent arc-shaped rod. A T-shaped block is provided on the second connection block. A first T-shaped groove for sliding connection with the T-shaped block and a transmission shaft rotatably connected are provided on the first connection block. A second T-shaped groove for sliding connection with the T-shaped block is provided on the transmission shaft. The first T-shaped groove and the second T-shaped groove are communicated with each other or have an included angle. A fixing block is slidably connected to the first connection block. A fixing groove for the fixing block to pass through is provided on the T-shaped block.

[0009] Further, a driving shaft is rotatably connected to the end of the first connection block. A chute is provided at the top of the driving shaft. A slider for sliding connection with the chute is provided at the bottom of the transmission shaft. A first vertical groove and a second vertical groove are respectively provided on both sides of the first connection block. A first spiral groove is provided between the top of the first vertical groove and the bottom of the second vertical groove, and a second spiral groove is provided between the top of the second vertical groove and the bottom of the first vertical groove. There is a certain angle between the first vertical groove and the second vertical groove. A guide post that slides successively in the first vertical groove, the first spiral groove, the second vertical groove, and the second spiral groove is provided at the end of the driving shaft. A first spring is provided between the driving shaft and the first connection block.

[0010] Further, a push block is slidably connected to the first connection 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 connection block. A roller for driving the push block to slide on the first connection block is provided on the second connection block. A mounting seat is provided on the second connection 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 convex block in contact with the mounting seat is provided on the vertical rod. A third spring is provided between the convex block and the mounting seat.

[0011] Further, a handle is provided on one side of the push block. Fourth inclined surfaces in contact with the roller are respectively provided on both sides of the push block.

[0012] Further, a limiting block is slidably connected to the fixing block. A limiting groove for plugging and matching with the limiting block is provided on the first connection block. Fifth inclined surfaces in contact with the limiting groove are respectively provided on both sides of the limiting block. A fourth spring is provided between two adjacent limiting blocks.

[0013] Further, connection parts sleeved on the outer sides of the arc-shaped rods are provided at the ends of the first connection block and the second connection block. A plurality of elastic blocks in contact with the arc-shaped rods are provided at the ends of the connection parts. A tightening block is threadedly connected to the connection parts. A sixth inclined surface in contact with the elastic blocks is provided at the end of the tightening block.

[0014] Furthermore, a plurality of protrusions are provided on the arc-shaped rod, a contact portion contacting the arc-shaped rod is provided on the elastic block, an L-shaped groove inserted and matched with the protrusion is provided on the contact portion, and a horizontal side and a vertical side in sliding contact with the protrusion are provided on the L-shaped groove.

[0015] Furthermore, the gap between adjacent elastic blocks is larger than the width on both sides of the protrusion.

[0016] Furthermore, a plurality of grooves are provided on the arc-shaped rod, a plurality of balls inserted and matched with the grooves are slidably connected to the elastic block, a fifth spring is provided between the balls and the elastic block, a limiting rod is slidably connected to the elastic block, a seventh inclined surface contacting the sixth inclined surface is provided at one end of the limiting rod, and the other end of the limiting rod contacts the ball.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the arch frame needs to be assembled, push the handle provided on one side of the push block. Through the cooperation among the push block, the first connecting block, the first inclined surface, the driving shaft, and the second inclined surface, the driving shaft will be driven to move downward on the first connecting block, so that the guide post provided on the driving shaft moves downward in the second vertical groove until the guide post moves to the bottom end of the second vertical groove. Then, rotate the adjacent arc-shaped rod counterclockwise. Through the transmission of torque by the T-shaped block and the transmission shaft, the driving shaft is driven to rotate counterclockwise on the first connecting block and enter the first spiral groove. Then, further rotate the adjacent arc-shaped rod counterclockwise. At the same time, the resilience generated after the first spring is compressed, combined with the guiding of the first spiral groove for the guide post, provides assistance for the adjacent arc-shaped rod to rotate counterclockwise on the first connecting block, thereby saving the power required to drive the rotation of the arc-shaped rod, eliminating the need for an additional power device for driving, further reducing the space required for the installation of the connection structure and the cost required for manufacturing; Subsequently, the adjacent arc-shaped rod unfolds relative to one of the arc-shaped rods, and the two are on the same horizontal plane. At this time, the first T-shaped grooves on the first connecting block are interconnected, so that the T-shaped block can move from the second T-shaped groove to the first T-shaped groove, enabling one of the arc-shaped rods and the adjacent arc-shaped rod to form an arc. Finally, repeat the above steps to alternately and reversely unfold the remaining arc-shaped rods, thereby realizing the assembly of the arch frame. And throughout the process, it is not necessary to twist a plurality of fixing bolts to realize the state switching of adjacent arc-shaped rods, thereby realizing the unfolding of the arch frame, and further improving the efficiency of assembling the protection cabin;

[0019] 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.

[0020] 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;

[0021] 4. After the arc-shaped frame is closed, under the action of the resilience of the first spring, the drive shaft will be further moved upward until the guide post moves to the top of the second vertical groove, and the resistance generated by the contact through the second vertical groove will limit the rotation of the first connecting block on the second connecting block. Considering the angle between the second T-shaped groove and the first T-shaped groove, it can prevent the T-shaped block from sliding into the first T-shaped groove during the transportation of the arch frame, thus improving the stability of the overall structure of the arch frame during transportation;

[0022] 5. When the first connecting block or the second connecting block needs to be installed on the arc-shaped rod, first, the connecting parts provided at the ends of the first connecting block and the second connecting block are sleeved on the outer side of the arc-shaped rod. Then, rotate the first connecting block or the second connecting block so that the gap between the protrusion provided on the arc-shaped rod and the adjacent elastic block is aligned. Next, move the first connecting block or the second connecting block 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. Subsequently, rotate and move the first connecting block or the second connecting block in sequence so that the protrusion passes through the horizontal side provided on the L-shaped block and enters the vertical side. Finally, through the cooperation among the connecting part, the fastening block, the sixth inclined surface, and the elastic block, the elastic block is driven to undergo slight deformation, making the elastic block contact with the arc-shaped rod. The resistance generated after the contact will limit the movement of the first connecting block or the second connecting block on the arc-shaped rod, thereby installing the first connecting block or the second connecting block on the arc-shaped rod. Moreover, without screwing multiple fixing bolts, the connection between the connection structure and the arc-shaped rod can be achieved, further improving the efficiency of assembling the protection cabin. At the same time, combined with the resistance generated after the protrusion contacts the horizontal side, it will further limit the movement of the first connecting block or the second connecting block relative to the arc-shaped rod, improving the stability of the overall structure and the supporting effect of the arch frame;

[0023] 6. When the first connecting block or the second connecting block needs to be installed on the arc-shaped rod, first, the connecting parts provided at the ends of the first connecting block and the second connecting block are sleeved on the outer side of the arc-shaped rod. Then, rotate and move the first connecting block or the second connecting block so that the ball provided on the elastic block is aligned with the groove. Next, rotate the fastening block on the connecting part, and the generated component force drives the elastic block to undergo slight deformation, making the elastic block contact with the arc-shaped rod. The resistance generated after the contact will limit the movement of the first connecting block or the second connecting block on the arc-shaped rod, thereby installing the first connecting block or the second connecting block on the arc-shaped rod. Moreover, without screwing multiple fixing bolts, the connection between the connection structure and the arc-shaped rod can be achieved, further improving the efficiency of assembling the protection cabin;

[0024] During the process of simultaneously 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. And through the resistance generated by the contact between the ball and the groove, the relative upward movement of the first connecting block or the second connecting block on the arc-shaped rod is further restricted, further improving the stability of the overall structure and the supporting effect of the arch frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. Figure 1 is a schematic structural diagram of the arc-shaped rod of the present invention.

[0026] FIG. Figure 2 is a schematic structural diagram of the first connecting block of the present invention.

[0027] FIG. Figure 3 is a schematic structural diagram of the cooperation between the first connecting block and the second connecting member of the present invention.

[0028] FIG. Figure 4 is a schematic structural diagram of the T-shaped block of the present invention.

[0029] FIG. Figure 5 is a schematic structural diagram of the transmission shaft of the present invention.

[0030] FIG. Figure 6 is a schematic structural diagram of the fixed block of the present invention.

[0031] FIG. Figure 7 is a schematic structural diagram of the drive shaft of the present invention.

[0032] FIG. Figure 8 is a schematic structural diagram of the first spiral groove of the present invention.

[0033] FIG. Figure 9 is the present invention FIG. Figure 4 partial enlarged view of part A in.

[0034] FIG. Figure 10 is a schematic structural diagram of the tightening block of the present invention.

[0035] FIG. Figure 11 is a schematic structural diagram of the protrusion of the present invention.

[0036] FIG. Figure 12 is a schematic structural diagram of the ball of the present invention.

[0037] Reference numerals shown in the drawings:

[0038] 1. Arc-shaped rod; 2. Connection structure; 3. First connecting block; 4. Second connecting block; 5. T-shaped block; 6. First T-shaped groove; 7. Transmission shaft; 8. Second T-shaped groove; 9. Fixed block; 10. Fixed groove;

[0039] 11. Drive shaft; 12. Chute; 13. Slide block; 14. First vertical groove; 15. Second vertical groove; 16. First spiral groove; 17. Second spiral groove; 18. Guide post; 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;

[0040] 32. Limit block; 33. Limit groove; 34. Fifth inclined surface; 35. Fourth spring;

[0041] 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 implementation manners

[0042] 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 not 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 also fall within the scope defined by this application.

[0043] The present invention provides a quick connection structure for an ellipsoidal cabin, as Figures 1-6 shown, including a connection structure 2 arranged between two adjacent arc-shaped rods 1. The connection structure 2 includes 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 the adjacent arc-shaped rod 1. A T-shaped block 5 is provided on the second connection block 4. A first T-shaped groove 6 for slidably connecting with the T-shaped block 5 and a transmission shaft 7 rotatably connected are provided on the first connection block 3. A second T-shaped groove 8 for slidably connecting with the T-shaped block 5 is provided on the transmission shaft 7. The first T-shaped groove 6 and the second T-shaped groove 8 are in communication with each other or have an included angle. In the closed state, several arc-shaped rods 1 are alternately folded together. The T-shaped block 5 provided on the second connection block 4 is located in the second T-shaped groove 8, and at the same time, there is an included angle between the second T-shaped groove 8 and the first T-shaped groove 6, avoiding the T-shaped block 5 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; in the unfolded state, several arc-shaped rods 1 are unfolded and located on the same plane. The T-shaped block 5 provided on the second connection 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 in communication with each other, enabling the T-shaped block 5 to slide between the two, facilitating the subsequent unfolding or closing of the arch frame;

[0044] When the T-shaped block 5 provided on the second connecting block 4 is located in the second T-shaped groove 8, by rotating the transmission shaft 7, the state between the arc-shaped rods 1 is changed, so that it is switched from the unfolded state to the folded state, or from the folded state to the unfolded state, thereby realizing the unfolding or folding of the arch frame, and the state switching of adjacent arc-shaped rods 1 can be realized without screwing multiple fixing bolts, thereby improving the efficiency of assembling the protection cabin;

[0045] A fixing block 9 is slidably connected to the first connecting block 3, and a fixing groove 10 for the fixing block 9 to pass through is 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, improve the stability of the overall structure, and thus improve the supporting effect of the arch frame.

[0046] Preferably, as Figure 4 、 Figure 7 and Figure 8As shown, a drive shaft 11 is rotatably connected to the end of the first connection block 3. A chute 12 is provided at the top of the drive shaft 11, and a slider 13 slidably connected to the chute 12 is provided at the bottom of the transmission shaft 7, so that the drive shaft 11 drives the transmission shaft 7 to rotate, and at the same time the drive shaft 11 can slide relative to the transmission shaft 7; first vertical grooves 14 and second vertical grooves 15 are respectively provided on both sides of the first connection block 3. First spiral grooves 16 and second spiral grooves 17 are respectively 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. There is a certain angle between the first vertical groove 14 and the second vertical groove 15, so that the angles of closing and unfolding are not 180 degrees, ensuring that after the arc-shaped rod 1 is closed, there is an angle between the first T-shaped groove 6 and the second T-shaped groove 8, restricting the T-shaped block 5 from sliding into the second T-shaped groove 8, and further improving the overall stability of the arch during transportation; a guide post 18 that slides successively in the first vertical groove 14, the first spiral groove 16, the second vertical groove 15, and the second spiral groove 17 is provided at the end of the drive shaft 11. A first spring 19 is provided between the drive shaft 11 and the first connection block 3. When the second connection block 4 is rotated relative to the first connection block 3, the resilience generated after the first spring 19 is compressed, combined with the guiding of the guide post 18 by the first spiral groove 16 or the second spiral groove 17, provides assistance for the rotation of the second connection block 4 on the first connection block 3, thereby saving the power required to drive the rotation of the arc-shaped rod 1, and there is no need to additionally set up a power device to drive, further reducing the space required for the installation of the connection structure 2 and the manufacturing cost; when adjacent arc-shaped rods 1 are gradually closed or unfolded relative to one of the arc-shaped rods 1, until the guide post 18 enters the second vertical groove 15 or the first vertical groove 14, and under the action of the resilience of the first spring 19, it will drive the drive shaft 11 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 restrict the rotation of the first connection block 3 on the second connection block 4, combined with the included angle between the second T-shaped groove 8 and the first T-shaped groove 6, 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, thereby improving the overall structural stability of the arch during transportation.

[0047] Preferably, as Figure 4 and Figure 9As shown, a push block 20 is slidably connected to the first connection block 3. The end of the push block 20 is provided with a first inclined surface 21. The top of the drive shaft 11 is provided with a second inclined surface 22 that contacts the first inclined surface 21. A second spring 23 is provided between the push block 20 and the first connection block 3. The second connection block 4 is provided with a roller 24 for driving the push block 20 to slide on the first connection block 3. When the arch frame needs to be recycled and the second connection block 4 is moved relative to the first connection block 3, the T-shaped block enters the second T-shaped groove from the first T-shaped groove, and the roller 24 drives the push block 20 to slide on the first connection block 3 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 drive shaft 11. The generated component force drives the drive shaft 11 to move downward, so that the guide post 18 provided on the drive shaft 11 moves from the top end to the bottom end of the first vertical groove 14. Then, the adjacent arc-shaped rod 1 is rotated clockwise. Torque is transmitted through the T-shaped block 5 and the transmission shaft 7 to drive the drive shaft 11 to rotate clockwise on the first connection block 3 so that it enters the second spiral groove 17. Then, the adjacent arc-shaped rod 1 is further rotated clockwise, so that the adjacent arc-shaped rod 1 gradually closes relative to one of the arc-shaped rods 1 until the guide post 18 enters the second vertical groove 15. The above steps are repeated multiple times to realize the closing of the remaining arc-shaped rods 1. And the state switching of the adjacent arc-shaped rods 1 can be released without screwing multiple fixing bolts throughout the process, realizing the closing of the arch frame, thereby improving the efficiency of assembling the protection cabin;

[0048] The second connection block 4 is provided with a mounting seat 25. 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 that contacts the roller 24. The vertical rod 26 is provided with a convex block 28 that contacts the mounting seat 25. A third spring 29 is provided between the convex block 28 and the mounting seat 25. When the second connection block 4 is moved on the first connection block 3, the roller 24 provided on the second connection block 4 contacts the third inclined surface 27 provided at the end of the push block 20. The generated component force drives the push block 20 to move on the first connection block 3 and drives the drive shaft 11 to move downward, so that it slides in the second vertical groove 15 until it moves to the lowest end, which 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 after the roller 24 contacts 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 convex block 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 connection block 4 to move from the first T-shaped groove 6 to the second T-shaped groove 8. Subsequently, the push block 20 is reset under the action of the resilience of the second spring 23, thus avoiding the interference of the push block 20 with the rotation of the drive shaft 11, ensuring the smooth rotation of the second connection block 4 on the first connection block 3, realizing the closing of the arc-shaped rod 1, and improving the efficiency of subsequent transportation of the arch frame.

[0049] Preferably, as Figure 4 and Figure 6 shown, a handle 30 is provided on one side of the pushing block 20, which facilitates 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 rollers 24 are respectively provided on both sides of the pushing block 20. During the process of unfolding the arc-shaped rod 1, the rollers 24 can smoothly contract through the contact between the rollers 24 and the fourth inclined surfaces 31 provided on both sides of the pushing block 20, avoiding interference between the two and affecting the smooth unfolding of the arch frame.

[0050] Preferably, as Figure 5 and Figure 6 shown, a limiting block 32 is slidably connected to the fixing block 9. A limiting groove 33 inserted and matched with the limiting block 32 is provided on the first connecting block 3. Fifth inclined surfaces 34 in contact with the limiting groove 33 are respectively provided on both sides of the limiting block 32. A fourth spring 35 is provided between two adjacent limiting blocks 32. Through the contact between the fifth inclined surfaces 34 provided on both sides of the limiting block 32 and the limiting groove 33 respectively, the component forces generated drive the limiting block 32 to move inward and compress the fourth spring 35, enabling the fixing block 9 to smoothly slide on the first connecting block 3. Then, 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 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.

[0051] Preferably, as Figure 10 and Figure 11 shown, connecting portions 36 sleeved on the outer side of the arc-shaped rod 1 are respectively provided at the ends of the first connecting block 3 and the second connecting block 4. A plurality of elastic blocks 37 in contact with the arc-shaped rod 1 are provided at the ends of the connecting portions 36. A tightening block 38 is threadedly connected to the connecting portion 36. A sixth inclined surface 39 in contact with the elastic block 37 is provided at the end of the tightening block 38. After sleeving the connecting portions 36 provided at the ends of the first connecting block 3 and the second connecting block 4 on the outer side of the arc-shaped rod 1, then rotate the tightening block 38. Through the contact between the sixth inclined surface 39 provided on one side of the tightening block 38 and the elastic block 37, the component force generated by the contact will drive the elastic block 37 to be slightly deformed, enabling the elastic block 37 to be in contact with the arc-shaped rod 1. The resistance generated by the contact will limit the movement of the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1, thereby realizing the connection between the connecting structure 2 and the arc-shaped rod 1. Without screwing a plurality of fixing bolts, the connection between the connecting structure 2 and the arc-shaped rod 1 can be realized, further improving the efficiency of assembling the protection cabin.

[0052] Preferably, as Figure 10And Figure 11 As shown, a number of protrusions 40 are provided on the arc-shaped rod 1. A contact portion 41 contacting the arc-shaped rod 1 is provided on the elastic block 37. An L-shaped groove 42 inserted and matched with the protrusion 40 is provided on the contact portion 41. The L-shaped groove 42 is provided with a horizontal side 43 and a vertical side 44 slidingly contacting the protrusion 40. After moving the protrusion 40 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, by rotating the tightening block 38 on the connecting portion 36, 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 undergo slight deformation, so that the elastic block 37 contacts the arc-shaped rod 1. The resistance generated after contact will limit the movement of the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1, thereby installing the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1. Moreover, without screwing a plurality of fixing bolts, the connection between the connection structure 2 and the arc-shaped rod 1 can be realized, further improving the efficiency of assembling the protection cabin. At the same time, in cooperation with the resistance generated after the protrusion 40 contacts the horizontal side 43, the movement of the first connecting block 3 or the second connecting block 4 relative to the arc-shaped rod 1 will be further restricted, improving the stability of the overall structure and the supporting effect of the arch frame.

[0053] Preferably, as Figure 10 shown, the gap between adjacent elastic blocks 37 is greater than the width on both sides of the protrusion 40, facilitating the protrusion 40 to pass through the gap between adjacent elastic blocks 37, so that the protrusion 40 can smoothly enter the L-shaped groove 42.

[0054] Preferably, as Figure 10 and Figure 12 shown, a number of grooves 45 are provided on the arc-shaped rod 1. A number of balls 46 inserted and matched with the grooves 45 are slidably connected to the elastic block 37. A fifth spring 47 is provided between the ball 46 and the elastic block 37. 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 contacting the sixth inclined surface 39. The other end of the limiting rod 48 contacts the ball 46. During 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. And through the resistance generated after the ball 46 contacts the groove 45, the movement of the first connecting block 3 or the second connecting block 4 relative to the arc-shaped rod 1 is further restricted, further improving the stability of the overall structure and the supporting effect of the arch frame.

[0055] Embodiment 1

[0056] The present invention provides a quick connection structure for a truncated ellipsoidal cabin, asFigures 1-6 As shown, the first connecting block 3 and the second connecting member are respectively arranged at the ends of one of the arc-shaped rods 1 and the adjacent arc-shaped rod 1 in advance;

[0057] When the arch frame needs to be assembled, rotate the second connecting member relative to the first connecting block 3. Through the contact between the first T-shaped groove 6 provided on the transmission shaft 7 and the T-shaped block 5, the generated component force will drive the transmission shaft 7 to rotate on the first connecting block 3 until the adjacent arc-shaped rod 1 unfolds relative to one of the arc-shaped rods 1 and the two are on the same horizontal plane. At this time, the first T-shaped grooves 6 on the first connecting block 3 communicate with each other, so that the T-shaped block 5 can move from the second T-shaped groove 8 to the first T-shaped groove 6 until one of the arc-shaped rods 1 and the adjacent arc-shaped rod 1 form an arc. Then slide the fixing block 9 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, repeat the above steps to alternately and reversely unfold the remaining arc-shaped rods 1, so as to realize the assembly of the arch frame. Without screwing multiple fixing bolts, the state switching of the adjacent arc-shaped rods 1 can be realized, thereby improving the efficiency of assembling the protection cabin;

[0058] When the arch frame needs to be recovered, move the fixing block 9 on the first connecting block 3 to pull out the fixing block 9 from the T-shaped block 5. 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 groove 6 to the second T-shaped groove 8. Then rotate the second connecting block 4 on the first connecting block 3 to drive the transmission shaft 7 to rotate on the first connecting block 3 until the adjacent arc-shaped rod 1 approaches one of the arc-shaped rods 1. At the same time, there is an included angle between the second T-shaped groove 8 and the first T-shaped groove 6 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. In addition, without screwing multiple fixing bolts, the state switching of the arc-shaped rod 1 can be released to realize the closing of the arch frame, thereby improving the efficiency of assembling the protection cabin.

[0059] Embodiment 2

[0060] On the basis of Embodiment 1, as Figures 4-9As shown, when the arch frame needs to be assembled, push the handle 30 provided on one side of the push block 20, driving the push block 20 to slide on the first connecting block 3, so that the first inclined surface 21 provided at the end of the push block 20 contacts the second inclined surface 22 provided at the top of the driving shaft 11. The generated component force will drive the driving shaft 11 to move downward on the first connecting block 3, so that the guide post 18 provided on the driving shaft 11 moves downward in the second vertical groove 15 until the guide post 18 moves to the bottom end of the second vertical groove 15. Then, rotate the adjacent arc-shaped rod 1 counterclockwise. The torque is transmitted through the T-shaped block 5 and the transmission shaft 7, driving the driving shaft 11 to rotate counterclockwise on the first connecting block 3 so that it enters the first spiral groove 16. Then, further rotate the adjacent arc-shaped rod 1 counterclockwise. At the same time, the resilience generated after the first spring 19 is compressed, combined with the guiding of the first spiral groove 16 for the guide post 18, provides assistance for the adjacent arc-shaped rod 1 to rotate counterclockwise on the first connecting block 3, thereby saving the power required to drive the rotation of the arc-shaped rod 1, eliminating the need for an additional power device for driving, and further reducing the space required for installing the connecting structure 2 and the manufacturing cost; Subsequently, the adjacent arc-shaped rod 1 unfolds relative to one of the arc-shaped rods 1, and the two are on the same horizontal plane. At this time, the first T-shaped grooves 6 on the first connecting block 3 are interconnected, so that the T-shaped block 5 can move from the second T-shaped groove 8 to the first T-shaped groove 6, enabling one of the arc-shaped rods 1 and the adjacent arc-shaped rod 1 to form an arc. Then, apply a force that overcomes the resilience of the fourth spring 35 to the fixed block 9, so that the fixed block 9 slides on the first connecting block 3, and the fifth inclined surfaces 34 provided on both sides of the limiting block 32 contact the limiting grooves 33 respectively. The generated component force drives the limiting block 32 to move inward and compresses the fourth spring 35, enabling the fixed block 9 to slide smoothly on the first connecting block 3. Then, the fixed block 9 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 fixed 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 fixed block 9 from falling off the first connecting block 3, thereby ensuring the stability of the overall structure and improving the support effect of the arch frame; Finally, repeat the above steps to alternately and reversely unfold the remaining arc-shaped rods 1, thereby realizing the assembly of the arch frame. And throughout the process, it is not necessary to screw multiple fixing bolts to realize the state switching of the adjacent arc-shaped rods 1, thereby realizing the unfolding of the arch frame, and further improving the efficiency of assembling the protection cabin;

[0061] 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;

[0062] 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.

[0063] Example 3

[0064] On the basis of Example 1, as Figure 10 and Figure 11 shown, when it is necessary to install the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1, first, the connecting portion 36 provided at the ends of the first connecting block 3 and the second connecting block 4 is sleeved on the outer side of the arc-shaped rod 1. Then, rotate the first connecting block 3 or the second connecting block 4 so that the gap between the protrusion 40 provided on the arc-shaped rod 1 and the adjacent elastic block 37 is aligned. Then, move the first connecting block 3 or the second connecting block 4 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. Subsequently, rotate and move the first connecting block 3 or the second connecting block 4 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, by rotating the fastening block 38 on the connecting portion 36, the sixth inclined surface 39 provided at the end of the fastening block 38 is brought into contact with the elastic block 37, and the generated component force drives the elastic block 37 to undergo slight deformation, so that the elastic block 37 contacts the arc-shaped 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-shaped rod 1, thereby installing the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1. Moreover, without screwing multiple fixing bolts, the connection between the connection structure 2 and the arc-shaped rod 1 can be realized, further improving the efficiency of assembling the protection cabin. At the same time, in cooperation with the resistance generated after the protrusion 40 contacts the horizontal side 43, the movement of the first connecting block 3 or the second connecting block 4 relative to the arc-shaped rod 1 will be further restricted, improving the stability of the overall structure and the supporting effect of the arch.

[0065] Example 4

[0066] On the basis of Example 1, as Figure 10 and Figure 12 shown, when it is necessary to install the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1, first, the connecting portion 36 provided at the ends of the first connecting block 3 and the second connecting block 4 is sleeved on the outer side of the arc-shaped rod 1. Then, rotate and move the first connecting block 3 or the second connecting block 4 so that the ball 46 provided on the elastic block 37 is aligned with the groove 45. Then, rotate the fastening block 38 on the connecting portion 36, and the generated component force drives the elastic block 37 to undergo slight deformation, so that the elastic block 37 contacts the arc-shaped 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-shaped rod 1, thereby installing the first connecting block 3 or the second connecting block 4 on the arc-shaped rod 1. Moreover, without screwing multiple fixing bolts, the connection between the connection structure 2 and the arc-shaped rod 1 can be realized, further improving the efficiency of assembling the protection cabin;

[0067] During the process of simultaneously 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. 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. And through the resistance generated by the contact between the ball 46 and the groove 45, the upward movement of the first connecting block 3 or the second connecting block 4 relative to the arc-shaped rod 1 is further restricted, further improving the stability of the overall structure and the supporting effect of the arch frame.

Claims

1. A quick connection structure for an intercepted ellipsoidal cabin, comprising a connection structure (2) arranged between two adjacent arc-shaped rods (1), characterized in that: The connecting structure (2) includes a first connecting block (3) provided at the end of one of the arc-shaped rods (1), and a second connecting block (4) provided at the end of the adjacent arc-shaped rod (1). A T-shaped block (5) is provided on the second connecting block (4). A first T-shaped groove (6) slidably connected to the T-shaped block (5) and a transmission shaft (7) rotatably connected are provided on the first connecting block (3). A second T-shaped groove (8) slidably connected to the T-shaped block (5) is provided on the transmission shaft (7). The first T-shaped groove (6) and the second T-shaped groove (8) communicate with each other or form an angle. A fixing block (9) is slidably connected to the first connecting block (3). A fixing groove (10) for the fixing block (9) to pass through is provided on the T-shaped block (5); A driving shaft (11) is rotatably connected to the end of the first connecting block (3). A chute (12) is provided at the top of the driving shaft (11). A slider (13) slidably connected to the chute (12) is provided at the bottom of the transmission shaft (7). A first vertical groove (14) and a second vertical groove (15) are respectively provided on both sides of the first connecting block (3). A first spiral groove (16) and a second spiral groove (17) are respectively 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). There is a certain angle between the first vertical groove (14) and the second vertical groove (15). A guide post (18) that slides successively in the first vertical groove (14), the first spiral groove (16), the second vertical groove (15), and the second spiral groove (17) is provided at the end of the driving shaft (11). A first spring (19) is provided between the driving shaft (11) and the first connecting block (3); A push block (20) is slidably connected to the first connecting block (3). 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 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 the 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); A handle (30) is provided on one side of the push block (20). Fourth inclined surfaces (31) in contact with the roller (24) are respectively provided on both sides of the push block (20).

2. The quick connection structure for a truncated ellipsoidal cabin according to claim 1, characterized in that: A limiting block (32) is slidably connected to the fixed block (9). A limiting groove (33) that is inserted and cooperates with the limiting block (32) is provided on the first connecting block (3). Fifth inclined surfaces (34) that are in contact with the limiting groove (33) are respectively provided on both sides of the limiting block (32). A fourth spring (35) is provided between two adjacent limiting blocks (32).

3. The quick connection structure for a truncated ellipsoidal cabin according to claim 1, characterized in that: Connecting portions (36) sleeving the outer side of the arc-shaped rod (1) are respectively provided at the ends of the first connecting block (3) and the second connecting block (4). A plurality of elastic blocks (37) that are in contact with the arc-shaped rod (1) are provided at the ends of the connecting portions (36). A tightening block (38) is threadedly connected to the connecting portion (36). A sixth inclined surface (39) that is in contact with the elastic block (37) is provided at the end of the tightening block (38).

4. The quick connection structure for a truncated ellipsoidal cabin according to claim 3, characterized in that: A plurality of protrusions (40) are provided on the arc-shaped rod (1). A contact portion (41) that is in contact with the arc-shaped rod (1) is provided on the elastic block (37). An L-shaped groove (42) that is inserted and cooperates with the protrusion (40) is provided on the contact portion (41). 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).

5. The quick connection structure for an elliptical truncated cabin according to claim 4, characterized in that: The gap between two adjacent elastic blocks (37) is greater than the width on both sides of the protrusion (40).

6. The quick connection structure for an intercepted ellipsoidal cabin according to claim 5, characterized in that: A plurality of grooves (45) are provided on the arc-shaped rod (1). A plurality of balls (46) that are inserted and cooperate with the grooves (45) are slidably connected to the elastic block (37). A fifth spring (47) is provided between the ball (46) and the elastic block (37). A limiting rod (48) is slidably connected to the elastic block (37). A seventh inclined surface (49) that is in contact with the sixth inclined surface (39) is provided at one end of the limiting rod (48). The other end of the limiting rod (48) is in contact with the ball (46).

Images