An arc-shaped bottom plate heavy single-support structure with a function of preventing the bolt from falling off

Abstract

The present invention discloses a heavy-duty single-support structure with an arc-shaped bottom plate having a function of preventing the pin from falling off, which includes an inner support tube, a threaded fine-tuning tube, an outer support tube, and an anti-detachment pin; the inner support tube is inserted into the threaded fine-tuning tube, and a plurality of positioning holes are arranged along the length direction of the inner support tube; the anti-detachment pin horizontally penetrates through the threaded fine-tuning tube and is inserted into the inner support tube through the positioning holes; the threaded fine-tuning tube is inserted into the end of the outer support tube; a clamping sleeve is sleeved on the periphery of the threaded fine-tuning tube, and the threaded fine-tuning tube and the clamping sleeve are connected with corresponding internal and external threads; buckles are oppositely arranged on the outer ring of the clamping sleeve, and the buckles at both ends are snap-connected to the collar at the end of the outer support tube; a spring is arranged inside the through hole, and the two ends of the spring respectively correspond to the first ball and the second ball; support plates are arranged at both support ends of the inner support tube and the outer support tube; arc-shaped grooves are oppositely arranged on the outer edge of the periphery of the support plate.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, and particularly to an arc-shaped bottom plate heavy single support structure with a pin anti-dropping function. Background Art

[0002] During construction, support structures such as scaffolding are often used. Scaffolding is a working platform erected to ensure the smooth progress of each construction process; it is divided into external scaffolding and internal scaffolding according to the erected position; the pins of the support structure of the old-fashioned scaffolding are prone to falling off. Once they fall off, it may lead to the instability of the support structure or even the fall of the inner tube, resulting in safety accidents; at the same time, when stacking, due to the cylindrical structure of the columns, the stacking stability is low, and sliding and rolling often occur; at the same time, because two-section columns are required to freely adjust the support height, when lifting and carrying, the columns are prone to sliding and easily pinch the hands of the staff, causing construction accidents. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides an arc-shaped bottom plate heavy single support structure with a pin anti-dropping function, which can be stably stacked and is convenient for safe handling, and at the same time can effectively bear the weight and prevent the pin from falling out due to vibration or other reasons.

[0004] Technical Solution: To achieve the above object, an arc-shaped bottom plate heavy single support structure with a pin anti-dropping function of the present invention includes an inner support tube, a threaded fine-tuning tube, an outer support tube, and an anti-dropping pin; the inner support tube is inserted into the threaded fine-tuning tube, and a plurality of positioning holes are arranged along the length direction of the inner support tube; the anti-dropping pin horizontally penetrates the threaded fine-tuning tube and is inserted into the inner support tube through the positioning holes; the threaded fine-tuning tube is inserted into the end of the outer support tube; a clamping sleeve is sleeved on the periphery of the threaded fine-tuning tube, and the threaded fine-tuning tube and the clamping sleeve are connected with corresponding internal and external threads; buckle fasteners are oppositely arranged on the outer ring of the clamping sleeve, and the buckle fasteners at both ends are buckled and connected to the collar at the end of the outer support tube; the anti-dropping pin includes a pin column, a first ball, and a second ball; the insertion end of the pin column is a frustum structure; a through hole is provided through the insertion end; the through holes at both ends of the through hole are in a contracted structure; the first ball and the second ball are arranged inside the through hole, and the diameters of the first ball and the second ball are equal to the inner diameter of the through hole; a spring is arranged inside the through hole, and both ends of the spring respectively correspond to the first ball and the second ball; support plates are arranged at both ends of the inner support tube and the outer support tube; arc-shaped grooves are oppositely arranged on the outer edge of the periphery of the support plate, and the inner diameter of the arc-shaped groove is greater than or equal to the outer diameters of the inner support tube and the outer support tube.

[0005] Further, a chain is connected to the opposite end of the insertion end; the other end of the chain is connected to a collar; the collar is sleeved on the inner support tube.

[0006] Furthermore, the buckle is provided with a first plate frame and a second plate frame, a metal rod is provided between the first plate frame and the second plate frame, the metal rod is connected to the end of the rotating rod through, and the rotating rod can rotate with the metal rod as the rotating axis.

[0007] Furthermore, a threaded hole is provided on the side wall of the outer support tube; a fixing groove is provided on the circumference of the threaded fine-tuning tube along the length direction; and the threaded hole corresponds to the fixing groove.

[0008] Furthermore, a through hole is provided at the center of the support plate, and the center of the through hole corresponds to the axis of the inner support tube and the outer support tube.

[0009] Furthermore, a limiting plate is provided on the inner wall of the outer supporting tube facing the supporting plate, and the inner supporting tube cannot pass through the portion of the inner wall of the outer supporting tube where the limiting plate is provided.

[0010] Furthermore, the limit plate is made of right-angle steel; the limit plate includes a first limit plate and a second limit plate; the first limit plate and the second limit plate are arranged opposite to each other on the inner wall of the outer support tube.

[0011] Furthermore, the support plate is provided with a rotating seat, and the rotating seat is rotatably connected to a handle.

[0012] Furthermore, the anti-dropping pin also includes an auxiliary pin; the auxiliary pin is horizontally inserted into the inner support tube, and both ends of the auxiliary pin are arranged in semicircular grooves at the end of the threaded fine-tuning tube.

[0013] Beneficial effects: The heavy-duty single-support structure of the arc-shaped bottom plate with the function of preventing the pin from falling off of the present invention can be stably stacked and convenient for safe transportation, and can effectively bear the weight and prevent the pin from falling off due to vibration and other reasons, including but not limited to the following technical effects:

[0014] 1) The first ball and the second ball are partially exposed to block the pin, so that the pin cannot slide out of the positioning hole, thereby playing an anti-dropping role;

[0015] 2) Setting up auxiliary pins can help the pins share some of the pressure from above and enhance the load-bearing capacity of the supporting structure;

[0016] 3) By embedding the supporting ends of the inner support tube and the outer support tube of the upper layer into the arc-shaped groove of the lower layer, shaking after stacking can be prevented;

[0017] 4) Setting a limit plate at the inner wall port of the outer support tube can prevent the inner support tube from sliding to the port to avoid pinching the hand, making transportation safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a structural diagram of the present invention;

[0019] AttachedFigure 2 Structural diagram of the threaded fine-tuning tube and ferrule of the present invention;

[0020] Appendix Figure 3 Cross-sectional view of the insertion end of the pin of the present invention;

[0021] Appendix Figure 4 Structural diagram of the support plate of the present invention;

[0022] Appendix Figure 5 Structural diagram of the buckle of the present invention;

[0023] Appendix Figure 6 Structural diagram of the first limiting plate and the second limiting plate of the present invention;

[0024] Appendix Figure 7 Structural diagram of the position of the auxiliary pin of the present invention. Specific implementation mode

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] As shown in the appendix Figure 1-7 : An arc-shaped bottom plate heavy single support structure with a pin anti-disengagement function, including an inner support tube 1, a threaded fine-tuning tube 2, an outer support tube 3 and an anti-disengagement pin 4; the inner support tube 1 is inserted into the threaded fine-tuning tube 2, and a plurality of positioning holes 11 are arranged along the length direction of the inner support tube 1; the anti-disengagement pin 4 horizontally penetrates through the threaded fine-tuning tube 2 and is inserted into the inner support tube 1 through the positioning holes 11; the threaded fine-tuning tube 2 is inserted into the end of the outer support tube 3; a ferrule 21 is sleeved on the circumference of the threaded fine-tuning tube 2, and the threaded fine-tuning tube 2 and the ferrule 21 are connected with corresponding internal and external threads; two opposite snap fasteners 211 are arranged on the outer ring of the ferrule 21, and the two ends of the snap fasteners 211 are snap-fitted to the collar 31 at the end of the outer support tube 3; judge the required support height according to the actual situation on site, then insert the inner support tube 1 into the threaded fine-tuning tube 2 to a suitable position and fix it with the anti-disengagement pin 4, then insert the threaded fine-tuning tube 2 into the outer support tube 3, and finally rotate the ferrule 21 to finely adjust the insertion depth of the threaded fine-tuning tube 2 through thread fitting to make it reach the required support height.

[0027] The anti - detachment bolt 4 includes a bolt post 41, a first ball 42 and a second ball 43; the insertion end 411 of the bolt post 41 is a frustum structure; a through - hole 412 is provided through the insertion end 411; the two ends of the through - hole 412 are of a contracted structure; the first ball 42 and the second ball 43 are arranged inside the through - hole 412 and the diameters of the first ball 42 and the second ball 43 are equal to the inner diameter of the through - hole 412; a spring 413 is arranged inside the through - hole 412, and the two ends of the spring 413 correspond to the first ball 42 and the second ball 43 respectively; when the bolt post 41 is inserted into the positioning hole 11, the inner diameter of the positioning hole 11 is equal to the diameter of the bolt post 41. Under the extrusion of the inner wall of the positioning hole 11, the first ball 42 and the second ball 43 contract back into the inside of the through - hole 412. When the insertion end 411 of the bolt post 41 extends out of the positioning hole 11, the first ball 42 and the second ball 43 extend out of the through - hole 412 under the elastic action of the spring 413. And because the two ends of the through - hole 412 are of a contracted structure, only part of the first ball 42 and the second ball 43 can be exposed. When the bolt post 41 becomes loose due to factors such as vibration, due to the blockage of the exposed parts of the first ball 42 and the second ball 43, the bolt post 41 cannot slide out of the positioning hole 11, thus playing an anti - detachment role.

[0028] Support plates 5 are provided at the supporting ends of both the inner support tube 1 and the outer support tube 3; an arc - shaped groove 51 is provided on the outer edge of the circumferential side of the support plate 5, and the inner diameter of the groove of the arc - shaped groove 51 is greater than or equal to the outer diameter of the inner support tube 1 and the outer support tube 3; when the support structures need to be stacked and placed, since the inner support tube 1, the threaded fine - tuning tube 2 and the outer support tube 3 are all cylindrical structures, they are likely to roll, and the stacking stability is relatively low. Therefore, the arc - shaped grooves 51 arranged oppositely are added on the circumferential side of the support plate 5, so that the two ends of the upper - layer support structure, that is, the support ends of the inner support tube 1 and the outer support tube 3, can be clamped in the arc - shaped grooves 51 of the support plate 5 of the lower - layer support structure, which can prevent shaking after stacking.

[0029] A chain 44 is connected to the opposite end of the insertion end 411; the other end of the chain 44 is connected to a collar 45; the collar 45 is sleeved on the inner support tube 1; the anti - detachment bolt 4 is tied by the chain 44. After the anti - detachment bolt 4 is pulled out of the positioning hole 11, it can be tied to the inner support tube 1 through the collar 45, which can avoid loss due to improper storage and also facilitate quickly finding the anti - detachment bolt 4 during assembly.

[0030] The buckle 211 is provided with a first plate frame 212 and a second plate frame 213, and a metal rod 214 is provided between the first plate frame 212 and the second plate frame 213, and the metal rod 214 is connected to the end of the rotating rod 215, and the rotating rod 215 can rotate with the metal rod 214 as the rotation axis; when fine-tuning the threaded fine-tuning tube 2, it is necessary to rotate the sleeve 21, and the torque can be increased by pulling the metal rod 214, making it easier to rotate the sleeve 21, and when the rotation is completed, the metal rod 214 automatically rotates downward due to the action of gravity, reducing the occupied space.

[0031] A threaded hole 32 is provided on the side wall of the outer support tube 3; a fixing groove 22 is provided on the circumference of the threaded fine-tuning tube 2 along the length direction; the threaded hole 32 corresponds to the fixing groove 22; after the other installation steps are completed, the fixing groove 22 can be supported by screwing the bolt into the threaded hole 32, so that the threaded fine-tuning tube 2 can be further fixed so that it is not easy to slide and loosen.

[0032] A through hole 54 is provided in the center of the support plate 5, and the center of the through hole 54 corresponds to the axis of the inner support tube 1 and the outer support tube 3; the through hole 54 can directly lead to the interior of the inner support tube 1 and the outer support tube 3. When transporting or moving, the staff can reach into the through hole 54 to facilitate lifting the entire support structure. At the same time, it is also convenient to clean when there are foreign objects inside the inner support tube 1 and the outer support tube 3.

[0033] The inner wall of the outer support tube 3 facing the support plate 5 is provided with a limit plate, and the inner support tube 1 cannot pass through the part of the inner wall of the outer support tube 3 provided with the limit plate; when the staff puts their hands into the through hole 54 to lift and carry the entire support structure, the inner support tube 1 and the outer support tube 3 may slide due to looseness, and the inner support tube 1 may slide deeper into the outer support tube 3, which may cause accidents such as pinching the fingers. Therefore, a limit plate is provided at the port of the inner wall of the outer support tube 3 to prevent the inner support tube 1 from sliding to the port, thereby avoiding pinching the fingers and making the transportation safer.

[0034] The limit plate is made of right-angle steel; the limit plate includes a first limit plate 521 and a second limit plate 522; the first limit plate 521 and the second limit plate 522 are arranged opposite to each other on the inner wall of the outer support tube 3; the right-angle steel structure is simple and has high enough strength. The opposite arrangement can ensure that the inner support tube 1 is limited to prevent it from going deeper, while not blocking the inside of the outer support tube 3 too much, making it convenient for personnel to observe the internal situation of the outer support tube 3.

[0035] The support plate 5 is provided with a rotating seat 53, and the rotating seat 53 is rotatably connected with a handle 531; the handle 531 can be easily lifted and carried, or transferred using equipment such as a crane.

[0036] The anti-disengagement bolt 4 further includes an auxiliary pin post 61; the auxiliary pin post 61 is horizontally inserted through the inner support tube 1, and both ends of the auxiliary pin post 61 are placed on the semi-circular grooves 23 at the ends of the threaded fine-tuning tube 2; since most of the force exerted when the support structure supports upper and lower objects is borne by the pin post 41, to avoid the situation where the pin post 41 breaks due to excessive force, the auxiliary pin post 61 is added. After passing through the inner support tube 1 and being placed on the semi-circular grooves 23, it can share part of the pressure from above and enhance the load-bearing capacity of the support structure.

[0037] During use, first determine the erection height of the required support structure. After inserting the inner support tube 1 into the threaded fine-tuning tube 2 to a suitable position, insert the anti-disengagement bolt 4 into one of the positioning holes 11 to fix the inner support tube 1 and the threaded fine-tuning tube 2. Then insert one end of the threaded fine-tuning tube 2 into the outer support tube 3, so that the two ends of the snap sleeve 21, the snap fasteners 211, are snap-fitted to the collar 31 at the end of the outer support tube 3. Finally, by rotating the snap sleeve 21, the depth of the threaded fine-tuning tube 2 inserted into the outer support tube 3 is finely adjusted through thread cooperation to accurately reach the required support height.

[0038] When stacking and piling up, the inner support tube 1 is connected to the outer support tube 3 through the threaded fine-tuning tube 2 to form a long strip-shaped columnar structure. The support structures are horizontally stacked in several layers, so that the two ends of the upper-layer support structure, that is, the support ends of the inner support tube 1 and the outer support tube 3, are snap-fitted into the arc-shaped grooves 51 of the support plate 5 of the lower-layer support structure.

[0039] During handling, the staff can carry it by lifting the handles 531 on the two ends of the support plate 5 of the support structure, or can reach into the through holes 54 to tightly hold the inner walls of the inner support tube 1 and the outer support tube 3 to lift it. At the same time, the depth of the finger insertion should not exceed the limit length of the limit plate.

[0040] The above are only the preferred embodiments of the present invention. It should be pointed out that: for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An arc-shaped bottom plate heavy single-support structure with a function of preventing the bolt from falling off, characterized in that: It includes an inner support tube (1), a threaded fine-tuning tube (2), an outer support tube (3) and an anti-disengagement pin (4); the inner support tube (1) is inserted into the threaded fine-tuning tube (2), and a number of positioning holes (11) are arranged along the length direction of the inner support tube (1); the anti-disengagement pin (4) horizontally penetrates the threaded fine-tuning tube (2) and is inserted into the inner support tube (1) through the positioning hole (11); the threaded fine-tuning tube (2) is inserted into the end of the outer support tube (3); a ferrule (21) is sleeved on the periphery of the threaded fine-tuning tube (2), and the threaded fine-tuning tube (2) is connected to the ferrule (21) in corresponding internal and external threads; a buckle (211) is arranged oppositely on the outer ring of the ferrule (21), and the two ends of the buckle (211) are buckled and connected to the collar (31) at the end of the outer support tube (3); the anti-disengagement pin (4) includes a pin column (41), a first ball (42) and a second ball (43); the insertion end (411) of the pin column (41) is a frustum structure; a through hole (412) is arranged through the insertion end (411); the two through ports at both ends of the through hole (412) are of a contracted structure; the first ball (42) and the second ball (43) are arranged inside the through hole (412) and the diameters of the first ball (42) and the second ball (43) are equal to the inner diameter of the through hole (412); a spring (413) is arranged inside the through hole (412), and the two ends of the spring (413) respectively correspond to the first ball (42) and the second ball (43); support plates (5) are arranged at both supporting ends of the inner support tube (1) and the outer support tube (3); an arc-shaped groove (51) is arranged oppositely on the outer edge of the periphery of the support plate (5), and the inner diameter of the arc-shaped groove (51) is greater than or equal to the outer diameters of the inner support tube (1) and the outer support tube (3); a limiting plate is arranged on the inner wall of the outer support tube (3) on the side facing the support plate (5), and the part of the inner support tube (1) that cannot pass through the inner wall of the outer support tube (3) where the limiting plate is arranged; A through hole (54) is arranged at the center of the support plate (5), and the center of the through hole (54) corresponds to the axes of the inner support tube (1) and the outer support tube (3); The anti-disengagement pin (4) further includes an auxiliary pin column (61); the auxiliary pin column (61) horizontally penetrates and inserts into the inner support tube (1), and the two ends of the auxiliary pin column (61) are placed on the semi-circular grooves (23) at the ends of the threaded fine-tuning tube (2); The usage method of the heavy-duty single support structure is as follows: First, determine the erection height of the required support structure. After inserting the inner support tube (1) into the threaded fine-tuning tube (2) to a suitable position, insert the anti-disengagement pin (4) into one of the positioning holes (11) to fix the inner support tube (1) and the threaded fine-tuning tube (2). Then insert one end of the threaded fine-tuning tube (2) into the outer support tube (3) so that the two ends of the buckle (211) of the ferrule (21) are buckled and connected to the collar (31) at the end of the outer support tube (3). Finally, by rotating the ferrule (21), the depth of the threaded fine-tuning tube (2) inserted into the outer support tube (3) is finely adjusted through thread cooperation to accurately reach the required support height; When stacking, the inner support tube (1) is connected to the outer support tube (3) through the threaded fine-tuning tube (2) to form a long strip columnar structure. The support structures are horizontally stacked in several layers, so that the support ends of the inner support tube (1) and the outer support tube (3) at both ends of the upper-layer support structure are clamped in the arc-shaped grooves (51) of the support plates (5) of the lower-layer support structure. When carrying, the staff transports by lifting the handles (531) on the support plates (5) at both ends of the support structure, or reaches into the through holes (54) to fasten the inner walls of the inner support tube (1) and the outer support tube (3) to lift them.

2. The heavy single-support structure of an arc-shaped bottom plate with a pin anti-disengagement function according to claim 1, characterized in that: A chain (44) is connected to the opposite end of the insertion end (411); the other end of the chain (44) is connected to a collar (45); the collar (45) is sleeved on the inner support tube (1).

3. The heavy single-support structure of the arc-shaped bottom plate with a pin anti-disengagement function according to claim 1, wherein: The buckle (211) is provided with a first plate frame (212) and a second plate frame (213). A metal rod (214) is arranged between the first plate frame (212) and the second plate frame (213). The metal rod (214) is connected through the end of a rotating rod (215), and the rotating rod (215) can rotate with the metal rod (214) as the rotation axis.

4. A heavy-duty single-support structure with an arc-shaped bottom plate having a pin anti-disengagement function according to claim 1, characterized in that: Threaded holes (32) are formed in the side wall of the outer support tube (3); fixing grooves (22) are formed in the circumferential direction of the threaded fine-tuning tube (2) along the length direction; the threaded holes (32) correspond to the fixing grooves (22).

5. The heavy single-support structure of an arc-shaped bottom plate with a function of preventing the bolt from falling off according to claim 1, wherein: The limiting plate is made of angle steel; the limiting plate includes a first limiting plate (521) and a second limiting plate (522); the first limiting plate (521) and the second limiting plate (522) are oppositely arranged on the inner wall of the outer support tube (3).

6. The heavy single-support structure with an arc-shaped bottom plate having a function of preventing the bolt from falling off according to claim 1, wherein: The support plate (5) is provided with a rotating seat (53), and a handle (531) is rotatably connected to the rotating seat (53).

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