Steel pipe inner supporting structure

Abstract

The utility model discloses a steel pipe inner supporting structure which comprises a two-way screw rod, an opening mechanism is arranged on the two-way screw rod, and the opening mechanism comprises a movable nut, a connecting rod, a supporting plate, a fixing mechanism, a pushing groove, an inserting groove, an inserting plate, a positioning hole and a positioning piece. The device is simple in structure and reasonable in design, the movable nuts move oppositely when the two-way screw rotates through the arrangement of the opening mechanism, then the supporting plate is jacked outwards through the connecting rod, the outer side wall of the supporting plate is completely attached to the inner side wall of a steel pipe, and the steel pipe is prevented from being damaged. By means of the design, it is ensured that a supporting structure in the steel pipe can be stably expanded and tightly attached, the steel pipe in the transportation process is effectively protected, the interior of the steel pipe is evenly supported through supporting of the expanding mechanism, deformation or damage caused by transportation vibration or external force is reduced, and the transportation efficiency is improved. Therefore, the structural stability and the service life of the steel pipe are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe protection equipment, in particular to an inner support structure of a steel pipe. Background Art

[0002] Steel pipes are widely used in construction, industry, and transportation. Their high strength, durability, and excellent workability make them a crucial material in engineering structures. Steel pipes are not only used for load bearing and support but are also commonly used to transport media such as liquids and gases. In industry and construction, the specifications and shapes of steel pipes can be customized to meet the specific requirements of different applications.

[0003] In specialized applications, such as architectural decoration and art installations, decorative steel pipes are favored for their aesthetics and lightweight design. To facilitate transportation and installation, these pipes are typically constructed from thinner materials, but this design also compromises strength. Decorative steel pipes are susceptible to deformation from external shock or vibration during transportation. This is especially true during long-distance transport, where repeated handling and loading and unloading can cause dents, bends, or other deformations on the surface, affecting their aesthetics. Therefore, to protect the shape and aesthetics of the pipes during transportation, additional support structures are required to enhance their stability. Utility Model Content

[0004] The purpose of the present invention is to provide a steel pipe inner support structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a steel pipe internal support structure, comprising a bidirectional screw, wherein the bidirectional screw is provided with a support mechanism;

[0006] The expansion mechanism includes:

[0007] A pair of movable nuts, each of which is disposed on threads at both ends of the bidirectional screw;

[0008] A plurality of connecting rods, each of which is provided on different movable nuts, and the number of connecting rods on each movable nut is equal;

[0009] A plurality of support plates, the inner sides of which are rotatably connected to connecting rods on different movable nuts;

[0010] Several groups of fixing mechanisms are arranged on the inner side of each support plate.

[0011] Preferably, the fixing mechanism includes:

[0012] A plurality of push grooves and slots, both of which are provided on the support plate;

[0013] A plugboard, which is movably arranged in each push slot;

[0014] Positioning holes, which are respectively provided in each slot and each plugboard;

[0015] A positioning piece is detachably arranged in the positioning hole.

[0016] Preferably, the threaded portion of the bidirectional screw is detachably provided with a locking nut, and the locking nut is located outside the movable nut.

[0017] Preferably, rubber pads are provided on the opposing surfaces of the locking nut and the movable nut.

[0018] Preferably, extension parts are provided at both ends of the bidirectional screw.

[0019] Preferably, the length of the bidirectional screw is greater than the length of the support plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This internal support structure of the steel pipe is provided with an expansion mechanism, which enables the movable nuts to move toward each other when the bidirectional screw rotates, and then the support plate is pushed outward by the connecting rod, so that the outer wall of the support plate is completely fitted on the inner wall of the steel pipe. This design ensures that the support structure inside the steel pipe can be stably expanded and tightly fitted, which effectively protects the steel pipe during transportation. Through the support of the expansion mechanism, the interior of the steel pipe is evenly supported, reducing deformation or damage caused by transportation vibration or external force, thereby significantly improving the structural stability and service life of the steel pipe;

[0022] 2. This kind of support structure inside the steel pipe is equipped with a fixing mechanism to effectively lock the position of the support plate. The operator can push the plug plate aside to make it enter the slot, and lock the slot and the positioning hole on the plug plate through the positioning piece, and further rotate the locking nut to make it close to the side of the movable nut to complete the fixation of the entire support mechanism. The fixing mechanism ensures the state of the edge part of the support plate after fixation, thereby enhancing the reliability and durability of the support mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the utility model when it is contracted;

[0024] Figure 2 This is a diagram showing the internal structure changes of the present invention when the support plate is fixed in the open state;

[0025] Figure 3 This is a diagram showing the changes after the utility model is fully expanded;

[0026] Figure 4This is an enlarged view of point A of the present utility model;

[0027] Figure 5 It is a structural schematic diagram of the movable nut of the utility model when it is locked.

[0028] In the figure: 1. Bidirectional screw; 2. Spreading mechanism; 201. Movable nut; 202. Connecting rod; 203. Support plate; 204. Fixing mechanism; 2041. Push groove; 2042. Slot; 2043. Insert plate; 2044. Positioning hole; 2045. Positioning piece; 3. Locking nut; 4. Rubber pad; 5. Extension part. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood broadly. For example, they can refer to fixed connection or disposition, detachable connection or disposition, or integrated connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0033] Example

[0034] See also Figure 1-5As shown, the present invention provides a technical solution for a steel pipe inner support structure: a steel pipe inner support structure, comprising a bidirectional screw 1, on which a support mechanism 2 is provided;

[0035] The support mechanism 2 includes a pair of movable nuts 201, a plurality of connecting rods 202, a plurality of support plates 203, and a plurality of fixing mechanisms 204. The movable nuts 201 are respectively installed on the threads at both ends of the bidirectional screw 1. The connecting rods 202 are respectively rotatably connected to different movable nuts 201, and the number of connecting rods 202 on each movable nut 201 is equal. The inner side of the support plate 203 is rotatably connected to the connecting rods 202 on different movable nuts 201. The fixing mechanism 204 is arranged on the inner side of each support plate 203. When supporting internally, the structure needs to be extended into the steel pipe, and then the two ends of the bidirectional screw 1 are fixed, and the bidirectional screw 1 is placed in the center position inside the steel pipe. At this time, hold the connecting rod 202 or limit the movable nut 201 by other means, and then rotate the bidirectional screw 1. The movable nuts 201 move towards each other, and the connecting rod 202 will lift the support plate 203. When the outer wall of the support plate 203 is completely attached to the inner wall of the steel pipe, stop rotating the bidirectional screw 1, open the fixing mechanism 204, and lock the position of each support plate 203.

[0036] The fixing mechanism 204 includes a plurality of push grooves 2041 and slots 2042, an insert plate 2043, a positioning hole 2044, and a positioning member 2045. The push grooves 2041 and slots 2042 are both provided on the support plate 203. The insert plate 2043 is movably mounted in each push groove 2041. A positioning hole 2044 is provided in each slot 2042 and insert plate 2043. The positioning member 2045 is detachably mounted in the positioning hole 2044. When locking the support plate 203, the operator needs to push the insert plates 2043 apart one by one to allow the insert plates 2043 to enter the slots 2042. After aligning the slots 2042 and the positioning holes 2044 on the insert plates 2043, the positioning member 2045 is used to lock the support plate 203. After locking, the entire support mechanism 2 can be completely fixed, providing structural protection for the steel pipe.

[0037] In a specific implementation process, the positioning hole 2044 can be designed as a threaded hole, and the positioning member 2045 can be designed as a bolt that matches it, so as to achieve a fixing effect.

[0038] The threaded part of the bidirectional screw 1 is detachably mounted with a locking nut 3, and the locking nut 3 is located on the outside of the movable nut 201; after the spreading mechanism 2 is locked as a whole, the locking nut 3 is rotated and fitted against the side of the movable nut 201, thereby achieving a double locking effect and preventing the movable nut 201 from moving.

[0039] A rubber pad 4 is provided on the opposite surface of the locking nut 3 and the movable nut 201; this design can form a pre-tightening force between the nuts, absorb vibration and impact, and reduce the loosening of the nuts due to transportation vibration or other external forces during operation.

[0040] An extension part 5 is designed at both ends of the bidirectional screw 1, and the length of the bidirectional screw 1 is designed to be greater than the length of the support plate 203; the extension part 5 can facilitate the fixation of the entire structure during operation and also facilitate the handling operation, and the special length design can further increase the convenience of operation.

[0041] The working principle of this utility model is as follows:

[0042] When using a support structure inside a steel pipe of this embodiment, the structure is first extended into the interior of the steel pipe, and the two ends of the bidirectional screw 1 are fixed so that it is in the center position inside the steel pipe. Then, the operator starts to rotate the bidirectional screw 1 by holding the connecting rod 202 or limiting the rotation of the movable nut 201 by other means. As the bidirectional screw 1 rotates, the movable nuts 201 at both ends of the bidirectional screw 1 move toward each other, driving the connecting rod 202 to push the support plate 203 outward. When the outer wall of the support plate 203 is completely in contact with the inner wall of the steel pipe, the rotation of the bidirectional screw 1 is stopped, and the fixing mechanism 204 is started to lock the position of each support plate 203.

[0043] During the locking process, the operator pushes aside the insert plate 2043 to allow it to enter the slot 2042, and aligns the slot 2042 with the positioning holes 2044 on the insert plate 2043, and then locks it by installing the positioning piece 2045. After locking, the operator rotates the locking nut 3 to make it close to the side of the movable nut 201. At this time, the support mechanism 2 is completely fixed, thereby achieving internal support and structural protection for the steel pipe.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A support structure in a steel pipe, comprising a bidirectional screw (1), characterized in that: The bidirectional screw (1) is provided with a spreading mechanism (2); The expansion mechanism (2) comprises: A pair of movable nuts (201), wherein the movable nuts (201) are respectively arranged on the threads at both ends of the bidirectional screw (1); A plurality of connecting rods (202), wherein the connecting rods (202) are respectively arranged on different movable nuts (201), and the number of the connecting rods (202) on each movable nut (201) is equal; A plurality of support plates (203), wherein the inner sides of the support plates (203) are rotatably connected to the connecting rods (202) on different movable nuts (201); A plurality of sets of fixing mechanisms (204) are provided, wherein the fixing mechanisms (204) are arranged on the inner side of each support plate (203).

2. The steel pipe inner support structure according to claim 1, characterized in that: The fixing mechanism (204) includes: A plurality of push grooves (2041) and slots (2042), wherein the push grooves (2041) and slots (2042) are both provided on the support plate (203); An inserting plate (2043), the inserting plate (2043) being movably disposed in each push slot (2041); Positioning holes (2044), the positioning holes (2044) are respectively provided on each slot (2042) and each plugboard (2043); A positioning member (2045) is detachably disposed in the positioning hole (2044).

3. The steel pipe inner support structure according to claim 1, characterized in that: The threaded portion of the bidirectional screw (1) is detachably provided with a locking nut (3), and the locking nut (3) is located outside the movable nut (201).

4. The steel pipe inner support structure according to claim 1, characterized in that: The opposite surfaces of the locking nut (3) and the movable nut (201) are provided with rubber pads (4).

5. The steel pipe inner support structure according to claim 1, characterized in that: Extension parts (5) are provided at both ends of the bidirectional screw (1).

6. The steel pipe inner support structure according to claim 1, characterized in that: The length of the bidirectional screw (1) is greater than the length of the support plate (203).

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