A large-load portable composite material support device for individual operation

Abstract

The present invention discloses a large-load portable composite material support device for individual operation, which includes a support frame and a rod body. A fixed buckle for the rod body to pass through and be fixedly connected to is provided at the top of the support frame. An end cover is provided at the top of the rod body. A winding and unwinding device for changing the rod body between a rolled state and a tubular state is provided at the bottom of the rod body. The winding and unwinding device includes a bracket and a winding and unwinding disc rotatably connected to the bracket. The bottom end of the rod body is fixedly connected to the winding and unwinding disc. An automatic winding mechanism for driving the winding and unwinding disc to rotate and an automatic locking mechanism for restricting the rotation of the winding and unwinding disc are also provided on the winding and unwinding disc. An auxiliary fixing device for stabilizing the rod body is also provided on the bracket. The present invention has the advantages of reasonable structure, good stability, and high flexibility for individual soldiers to complete the winding and unwinding operations.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite materials, and particularly relates to a large-load portable composite material support device for individual operation. Background Art

[0002] Portable composite material support rods are widely welcomed in the fields of wireless communication, military, and transportation due to their portability.

[0003] Chinese invention with the publication number CN108336471A discloses a portable composite material antenna support tube system, which includes an antenna support tube main body. The antenna support tube main body is wound into a cylindrical structure by a retractable composite material. The lower end and the upper end of the antenna support tube main body are respectively provided with lower bases and upper bases with the same integral structure. The tube wall of the antenna support tube main body is clamped between the inner sleeve and the outer sleeve of the base that constitutes the lower base and the upper base. The antenna support tube main body is provided with upper sleeves and lower sleeves with the same structure. The upper sleeves and the lower sleeves include guy wire holes, locking handles, outer sleeves, and inner sleeves. The outer sleeve is composed of an upper outer sleeve and a lower outer sleeve. One end of the upper outer sleeve and the lower outer sleeve is hinged together through a movable shaft, and the other end of the upper outer sleeve and the lower outer sleeve is locked through a hinged locking handle. The tube wall of the antenna support tube main body is locked between the outer sleeve and the inner sleeve through the locking handle. The antenna passes through the lower base hole in the middle of the lower base, sequentially passes through the lower sleeve and the upper sleeve, and finally passes out through the upper base hole in the middle of the upper base at the top.

[0004] However, since this system needs to consider the possibility of the operator changing the composite material support tube from a complete tubular shape to a coiled shape by hand force, the strength of the composite material antenna tube cannot be made too strong, which limits the load-bearing capacity of the composite material support tube system and the weight of the support equipment. At the same time, due to the design of its system structure, at least two people are required to operate simultaneously for retracting and extending. One person operates the rod body for retracting and extending, and the other person controls the balance of the rod body through a pull rope, which limits the flexibility of individual operation.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a large-load portable composite material support device for individual operation. Summary of the Invention

[0006] The purpose of the present invention is to provide a large-load portable composite material support device for individual operation to solve the problem of low flexibility of individual operation in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: A large-load portable composite support device for individual operation, comprising a support frame and a rod body. A fixed buckle for the rod body to pass through and be fixedly connected to is provided at the top end of the support frame. An end cap is provided at the top of the rod body. A winding and unwinding device for changing the rod body between a rolled state and a tubular state is provided at the bottom of the rod body. The winding and unwinding device includes a bracket and a winding and unwinding disk rotatably connected to the bracket. The bottom end of the rod body is fixedly connected to the winding and unwinding disk. An automatic winding mechanism for driving the winding and unwinding disk to rotate and an automatic locking mechanism for restricting the rotation of the winding and unwinding disk are further provided on the winding and unwinding disk. An auxiliary fixing device for stabilizing the rod body is also provided on the bracket.

[0008] As a preferred technical solution of the present invention, the support frame includes a detachable tripod, and ground nail fixing holes are provided at the feet of the tripod in contact with the ground.

[0009] As a preferred technical solution of the present invention, several groups of fixed buckles are included. Blocks and grooves for positioning and connecting to each other are respectively provided at the top and bottom of the fixed buckle. A groove matching the block on the fixed buckle is also provided at the lower end of the end cap.

[0010] As a preferred technical solution of the present invention, a limiting groove for connecting to the top end of the rod body is further provided beside the groove at the lower end of the end cap.

[0011] As a preferred technical solution of the present invention, the auxiliary fixing device includes a pull rope and a storage disk. The storage disk is arranged outside the winding and unwinding disk. One end of the pull rope is fixedly connected to the connection hole of the fixed buckle, and the other end sequentially passes through the through hole at the upper end of the end cap and the pulley on the support frame and is then fixedly connected and wound on the storage disk.

[0012] As a preferred technical solution of the present invention, the winding and unwinding disk includes several support plates arranged in the middle and disk bodies arranged at both ends of the support plates. The bottom end of the rod body is fixedly connected to the locking structure on the support plate. The winding and unwinding disk further includes a rotating shaft rotatably connected to the bracket, and the disk body and the storage disk are fixedly connected to the rotating shaft.

[0013] As a preferred technical solution of the present invention, the cross-section of the rotating shaft includes a D shape, and a D-shaped hole matching the cross-section of the rotating shaft is provided on the disk body.

[0014] As a preferred technical solution of the present invention, the shaft hole at the connection between the storage disk and the rotating shaft includes a circular shape. Tooth-like structures are provided on the adjacent sides and the outer side of the storage disk. End sleeves are respectively fixedly connected to both ends of the rotating shaft. Tooth-like structures are also provided on the side of the end sleeve facing the storage disk. A first locking nut for controlling the end sleeve to approach or move away from the storage disk is provided on the end sleeve.

[0015] As a preferred technical solution of the present invention, the automatic winding mechanism includes a disc spring, and two ends of the disc spring are respectively fixedly connected to a rotating shaft and a bracket.

[0016] As a preferred technical solution of the present invention, the automatic locking mechanism includes a gear fixedly connected to the rotating shaft, a second locking nut fixedly connected to the bracket, and a spring piece movably connected to the bracket. One end of the spring piece is clamped into the teeth of the gear through the second locking nut to lock the rotation of the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By an operator operating the end cover to drive one end of the rod body to rise and fixing it through a fixed buckle, at the same time, the automatic locking mechanism is activated to restrict the rotation of the other end of the rod body wound around the winding and unwinding device, and the process of a single soldier erecting this support device is completed through an auxiliary fixing device. The automatic winding mechanism controls the winding and unwinding disc to drive one end of the rod body to rotate and wind around the winding and unwinding disc, so as to automatically change the rod body from a tubular shape to a coiled shape, thereby facilitating the operator to retract the rod body. It has the advantages of reasonable structure, good stability, and high flexibility for a single soldier to complete the winding and unwinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the end cover in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the fixed buckle in an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the tripod in an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the winding and unwinding device in an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of a partial structure of the automatic locking mechanism in an embodiment of the present invention.

[0025] In the figure: 1. End cap; 2. Rod body; 3. Fixed buckle; 4. Tripod; 5. Reeling device; 6. Flange; 7. Through hole; 8. Card slot; 9. Clamping part; 10. Connection hole; 11. Card block; 12. Rotating locking structure; 13. Connector; 14. Pulley; 15. Ground nail fixing hole; 16. Bracket; 17. Reeling disc; 18. Storage disc; 19. Rotating shaft; 20. Boss; 21. First cross bar; 22. Upper cross bar; 23. Through hole; 24. Support plate; 25. Locking structure; 26. Automatic reeling mechanism; 27. Automatic locking mechanism; 28. Tooth-like structure; 29. End sleeve; 30. First locking nut; 31. Second locking nut; 32. Spring piece; 33. Gear; 34. Limit slot. Detailed implementation manners

[0026] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present invention.

[0027] As Figure 1-6 shown, a large-load portable composite material support device for individual operation includes a support frame and a rod body 2. At the top end of the support frame, there is a fixed buckle 3 for the rod body 2 to pass through and be fixedly connected to the rod body 2. At the top of the rod body 2, there is an end cap 1, and at the bottom of the rod body 2, there is a reeling device 5 for changing the rod body 2 between a rolled state and a tubular state. The reeling device 5 includes a bracket 16 and a reeling disc 17 rotatably connected to the bracket 16. The bottom end of the rod body 2 is fixedly connected to the reeling disc 17. On the reeling disc 17, there is also an automatic reeling mechanism 26 for driving the reeling disc 17 to rotate and an automatic locking mechanism 27 for restricting the rotation of the reeling disc 17. On the bracket 16, there is also an auxiliary fixing device for stabilizing the rod body 2. By operating the end cap 1 by the operator to drive one end of the rod body 2 to rise and fixing it through the fixed buckle 3, at the same time, the automatic locking mechanism 27 is activated to restrict the rotation of the other end of the rod body 2 wound around the reeling device 5, and the process of an individual soldier erecting this support device is completed through the auxiliary fixing device. By controlling the reeling disc 17 through the automatic reeling mechanism 26 to drive one end of the rod body 2 to rotate and wind around the reeling disc 17, the rod body 2 can be automatically changed from a tubular state to a rolled state, so as to facilitate the operator to put away the rod body 2.

[0028] Among them, the support frame includes a detachable tripod 4. At the foot of the tripod 4 in contact with the ground, there is a ground nail fixing hole 15. By using a ground nail to pass through the ground nail fixing hole 15, the tripod 4 can be fixed on the ground.

[0029] Among them, there are several groups of fixed buckles 3. At the top and bottom of the fixed buckle 3, there are clamping blocks 11 and clamping grooves 8 for positioning and connecting with each other respectively. At the lower end of the end cap 1, there is also a clamping groove 8 matching the clamping block 11 on the fixed buckle 3. The effect of connecting multiple fixed buckles 3 is achieved through the clamping block 11 and the clamping groove 8.

[0030] Among them, beside the clamping groove 8 at the lower end of the end cap 1, there is also a limiting groove 34 connected to the top end of the rod body 2. By fixing the top end of the rod body 2 in the limiting groove 34, the effect of connecting the end cap 1 and the rod body 2 is achieved.

[0031] Among them, the auxiliary fixing device includes a pull rope and a storage disc 18. The storage disc 18 is arranged outside the winding and unwinding disc 17. One end of the pull rope is fixedly connected to the connection hole 10 of the fixed buckle 3, and the other end passes through the through hole 7 at the upper end of the end cap 1 and the pulley 14 on the support frame in sequence, and then is fixedly connected and wound on the storage disc 18. The effect of assisting in fixing the rod body 2 is achieved through the pull rope, and the effect of preventing the rod body 2 from tilting is achieved.

[0032] Among them, the winding and unwinding disc 17 includes several support plates 24 arranged in the middle and discs arranged at both ends of the support plates 24. The bottom end of the rod body 2 is fixedly connected to the locking structure 25 on the support plate 24. The winding and unwinding disc 17 also includes a rotating shaft 19 rotatably connected to the support 16. The disc and the storage disc 18 are fixedly connected to the rotating shaft 19. The effect of fixing one end of the rod body 2 is achieved through the locking structure 25, and the effect of providing fixed support for the rod body 2 is achieved through the support plate 24.

[0033] Among them, the cross-section of the rotating shaft 19 includes a D shape. The disc is provided with a D-shaped hole matching the cross-section of the rotating shaft 19. The effect of fixedly connecting the rotating shaft 19 and the disc is achieved by clamping the rotating shaft 19 in the D-shaped hole of the disc.

[0034] Among them, the shaft hole at the connection between the storage disc 18 and the rotating shaft 19 is circular. Tooth-like structures 28 are arranged on the adjacent sides and the outer side of the storage disc 18. End sleeves 29 are respectively fixedly connected to both ends of the rotating shaft 19. Tooth-like structures 28 are also arranged on the side of the end sleeve 29 facing the storage disc 18. A first locking nut 30 for controlling the end sleeve 29 to approach or move away from the storage disc 18 is arranged on the end sleeve 29. The first locking nut 30 drives the end sleeve 29 to be clamped with the storage disc 18, so as to achieve the effect of independently adjusting the movement of the storage disc 18 and moving with the shaft.

[0035] Among them, the automatic winding mechanism 26 includes a disc spring. Both ends of the disc spring are respectively fixedly connected to the rotating shaft 19 and the support 16. The effect of providing the elastic force for tightening the rod body 2 is achieved through the disc spring.

[0036] Among them, the automatic locking mechanism 27 includes a gear 33 fixedly connected to the rotating shaft 19, a second locking nut 31 fixedly connected to the bracket 16, and a spring piece 32 movably connected to the bracket 16. One end of the spring piece 32 is clamped into the teeth of the gear 33 through the second locking nut 31 to lock the rotation of the rotating shaft 19. By controlling the second locking screw, the spring piece 32 is clamped into or removed from between the gears 33 to achieve the function of locking the rotation of the rotating shaft 19.

[0037] Refer Figure 1 As shown, a large-load portable composite material support device for individual operation in an embodiment of the present invention is composed of an end cover 1, a rod body 2, a fixed buckle 3, a tripod 4, and a winding and unwinding device 5.

[0038] Refer Figure 2 As shown, there are flanges 6 on the upper and lower sides of the end cover 1, and a through hole 7 for fixing the pull rope on the upper flange edge. There is a slot 8 at the center of the lower end that cooperates with the block 11 at the center of the fixed buckle 3. When retracted, it can be stored together with the middle fixed buckle. A limit slot 34 for connecting to the top of the rod body 2 is also provided beside the slot 8 at the lower end of the end cover 1, which serves to connect the end cover 1 and the rod body 2.

[0039] Refer Figure 3 As shown, a clamping member 9 is connected to the upper edge of the fixed buckle 3, which can connect the adjacent fixed buckle 3 and the end cover 1 together in the retracted state. When the composite material rod body 2 is released, the adjacent middle buckles 3 are connected to each other through the clamping member 9 to prevent it from rising with the rod body. There is a connection hole 10 for fixing the pull rope on the side of the fixed buckle 3, which is convenient for strengthening the entire support device after the rod body 2 rises to the specified height. There are positioning blocks 11 and slots 8 on the upper and lower sides and the folding part at the center of the middle fixed buckle 3 to facilitate the mutual positioning between the middle fixed buckles 3.

[0040] Refer Figure 4 As shown, the end of the telescopic rod of the tripod 4 has a rotation locking structure 12, which can quickly lock the telescopic rod in the support position and connect and fix it to the connecting member 13 of the bottommost fixed buckle. There is a rotatable pulley 14 at the base, which is convenient for adjusting the direction of the pull rope to perform three-direction tension adjustment on the support rod. There is a ground nail fixing hole 15 at the base to facilitate fixing the tripod with a ground nail.

[0041] Refer Figure 5 and Figure 6 As shown, the winding and unwinding device is composed of a bracket 16, a winding and unwinding disk 17, a storage disk 18, and a rotating shaft 19 structure.

[0042] The bracket 16 has a boss 20 at a fixed position at the bottom. When the tripod 4 is opened, it is stuck on two horizontal tie rods to achieve quick positioning and fixation. There is a first cross bar 21 at the rear side of the bracket 16 with the gap adjusted by a knurled bolt, which facilitates the rod body 2 to pass through the gap. When winding up, by using the downward shrinking force applied by the upper operator, the rod body 2 is changed from a tubular shape to a sheet shape, so that the winding and unwinding disc 17 can achieve the automatic winding operation with a smaller winding force. The upper cross bar 22 of the bracket 16 has a pull rope through hole 23 with a single-sided slot corresponding to the upper part of the storage disc 18, which is convenient for the winding of the pull rope.

[0043] The winding and unwinding disc 17 includes a plurality of support plates 24. There is a locking structure 25 for fixing the end of the connecting rod body 2 on one of the support plates 24. This mechanism adopts a clamping plate structure that can adjust the tightness to ensure that during the winding and unwinding operation, the rod body 2 and the winding and unwinding disc 17 will not have relative sliding. There is an automatic winding mechanism 26 on the winding and unwinding disc 17. This device is composed of a disc spring fixed on the rotating shaft 19 and the bracket 16. When the composite material rod body 2 is released, the disc spring is wound up. When the rod body 2 is recovered, it can automatically wind the rod body 2 on the support plate 24 of the winding and unwinding disc 17. The through shaft hole in the center of the winding and unwinding disc 17 is a D-shaped hole, which matches the D-shaped cross-section rotating shaft 19, facilitating the synchronous movement of the winding and unwinding disc 17, the rotating shaft 19, and the storage disc 18. There is an automatic locking mechanism 27 on the winding and unwinding disc 17. This mechanism is composed of a gear 33 fixed on the rotating shaft 19, a second locking nut 31, and a spring piece 32. When the rod body 2 is opened upward, the second locking nut 31 is adjusted so that the spring piece 32 is in a non-locking state. The lower part of the spring piece 32 naturally hangs down to the teeth of the gear 33 by gravity, realizing the automatic locking of the winding and unwinding disc 17, preventing the composite material rod body 2 from automatically recovering due to the automatic winding mechanism 26, and facilitating the operation.

[0044] The through shaft hole in the middle of the storage disc 18 is circular. There are tooth-like structures 28 on the adjacent side and the outer side of the storage disc 18. Both ends of the rotating shaft 19 are connected with end sleeves 29 with tooth-like structures. The end sleeve 29 has a first locking nut 30 on one side of the shaft plane. By adjusting the position of the end sleeve 29 on the rotating shaft 19, the independent adjustment and movement along the shaft of the storage disc 18 are realized. There is a convex structure on the side close to the winding and unwinding disc of the support rod, which is used to control the distance between the storage disc 18 and the winding and unwinding disc 17, facilitating the operation of the winding and unwinding disc 17.

[0045] The rotating shaft 19 is connected to the detachable bracket 16 through a bearing, ensuring smooth relative movement between the rotating shaft and the detachable bracket.

[0046] It can be seen from the above technical solutions that the present invention has the following advantages:

[0047] A large-load portable composite support rod system for individual operation according to the present invention. The tripod 4 and the support 16 of the system both adopt a quick-folding disassembly and assembly structure. The fixed buckle 3, the tripod 4, and the end cover 1 can be locked with each other, which has the characteristics of convenient storage and portability. The rod body 2 uses a retractable disc 17 to assist in retracting and extending, and it is not necessary to use hand strength to change the end of the rod body 2 from a tubular shape to a coiled shape, and it can be designed to be relatively rigid and bear a large load. An automatic winding mechanism 26 and an automatic locking device 27 are adopted, and combined with the independently adjustable three-way guy wire design that is retracted and extended synchronously with the composite rod body 2, individual operation of retracting and extending is realized, making the device have high flexibility.

[0048] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.

[0049] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A large-load portable composite material support device for individual operation, comprising a support frame and a rod body (2). Characterized in that: A fixed buckle (3) through which the rod body (2) passes and is fixedly connected to the rod body (2) is provided at the top end of the support frame. An end cover (1) is provided at the top of the rod body (2). A winding and unwinding device (5) for transforming the rod body (2) between a coiled state and a tubular state is provided at the bottom of the rod body (2). The winding and unwinding device (5) comprises a bracket (16) and a winding and unwinding disk (17) rotatably connected to the bracket (16). The bottom end of the rod body (2) is fixedly connected to the winding and unwinding disk (17). An automatic winding mechanism (26) for driving the winding and unwinding disk (17) to rotate and an automatic locking mechanism (27) for restricting the rotation of the winding and unwinding disk (17) are further provided on the winding and unwinding disk (17). An auxiliary fixing device for stabilizing the rod body (2) is further provided on the bracket (16).

2. A large-load portable composite material support device for individual operation according to claim 1, Characterized in that: The support frame comprises a detachable tripod (4), and a ground nail fixing hole (15) is provided at the foot of the tripod (4) in contact with the ground.

3. A large-load portable composite material support device for individual operation according to claim 1, Characterized in that: The fixed buckle (3) comprises several groups. Clamping blocks (11) and clamping grooves (8) for positioning and connecting with each other are respectively provided at the top and bottom of the fixed buckle (3). A clamping groove (8) matching the clamping block (11) on the fixed buckle (3) is also provided at the lower end of the end cover (1).

4. A large-load portable composite material support device for individual operation according to claim 3, Characterized in that: A limiting groove (34) connected to the top end of the rod body (2) is further provided beside the clamping groove (8) at the lower end of the end cover (1).

5. A large-load portable composite material support device for individual operation according to claim 1, Characterized in that: The auxiliary fixing device comprises a pull rope and a storage disk (18). The storage disk (18) is arranged outside the winding and unwinding disk (17). One end of the pull rope is fixedly connected to the connection hole (10) of the fixed buckle (3), and the other end sequentially passes through the passing hole (7) at the upper end of the end cover (1) and the pulley (14) on the support frame and is then fixedly connected and wound around the storage disk (18).

6. A large-load portable composite material support device for individual operation according to claim 5, Characterized in that: The winding and unwinding disk (17) comprises several support plates (24) arranged in the middle and disk bodies arranged at both ends of the support plates (24). The bottom end of the rod body (2) is fixedly connected to a locking structure (25) on the support plates (24). The winding and unwinding disk (17) further comprises a rotating shaft (19) rotatably connected to the bracket (16), and the disk bodies and the storage disk (18) are fixedly connected to the rotating shaft (19).

7. A large-load portable composite material support device for individual operation according to claim 6, Characterized in that: The axial section of the rotating shaft (19) includes a D shape, and a D-shaped hole matching the axial section of the rotating shaft (19) is provided on the disc body.

8. A large-load portable composite material support device for individual operation according to claim 7, characterized in that: The shaft-passing hole at the connection between the storage disc (18) and the rotating shaft (19) includes a circular shape. A toothed structure (28) is provided on the adjacent side and the outer side of the storage disc (18). End sleeves (29) are respectively fixedly connected to both ends of the rotating shaft (19). A toothed structure (28) is also provided on the side of the end sleeve (29) facing the storage disc (18). A first locking nut (30) for controlling the end sleeve (29) to approach or move away from the storage disc (18) is provided on the end sleeve (29).

9. A large-load portable composite material support device for individual operation according to claim 6, characterized in that: The automatic winding mechanism (26) includes a disc spring, and both ends of the disc spring are respectively fixedly connected to the rotating shaft (19) and the bracket (16).

10. A large-load portable composite material support device for individual operation according to claim 7, characterized in that: The automatic locking mechanism (27) includes a gear (33) fixedly connected to the rotating shaft (19), a second locking nut (31) fixedly connected to the bracket (16), and a spring piece (32) movably connected to the bracket (16). One end of the spring piece (32) is snapped into the teeth of the gear (33) through the second locking nut (31) to lock the rotation of the rotating shaft (19).

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