Self-balancing wind-resistant door frame

Abstract

The utility model discloses a self-balancing wind-resistant portal frame which comprises stand columns, foundation feet and a top frame, clamping grooves are formed in the outer surfaces of the stand columns in an arrayed mode, a fixed threaded cylinder is connected to the center of the outer wall of a connecting block in an embedded mode, and a mounting plate is arranged on the side, away from a cross beam, of the connecting block. A rotating threaded rod is connected to the center of the side, close to the connecting block, of the mounting plate through a bearing, ejector rods are arranged around the rotating threaded rod, a fixing rod is connected to the top end of the center of the cross beam, a pull rope is connected to the bottom end of the fixing rod, and a wind stabilizing ball is connected to the end, away from the fixing rod, of the pull rope. The top rod is embedded in the clamping groove to achieve fixation of the top frame and the stand column, during installation, the rotary threaded rod can be driven to rotate by twisting the adjusting rotary disc so as to drive the installation plate to translate, the installation plate moves to drive the top rod to be embedded in the clamping groove so as to complete fixed installation of the door frame, and the stress direction of the door frame is changed through the wind stabilizing ball; and the portal is always in a stable state.

Description

Technical Field

[0001] The utility model relates to the technical field of door frames, in particular to a self-balancing wind-resistant door frame. Background Art

[0002] The gantry is mainly used in traffic facilities such as highways and municipal management. There are many types of gantries, including sign gantries, information board gantries and electromechanical gantries. The application number CN201220020462.6 has been retrieved, which is a traffic sign gantry. The new structure is simple and easy to process, which can effectively reduce the processing cost of the product. It can be used in sections of different spans, especially large-span sections to show its superiority, and can be used in bridge sections or roadbed sections.

[0003] Similar to the traffic sign gantry mentioned above: Although the use of a truss structure effectively reduces the processing cost of the product, firstly, most of the gantries at this stage are integrated structures, which require a lot of time during disassembly and transportation. Secondly, the gantry is prone to shaking under the pressure of strong winds and is not self-balancing. Excessive shaking of the gantry can easily lead to the failure or tipping of the gantry.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a self-balancing wind-resistant door frame is proposed to achieve a more practical purpose. Summary of the invention

[0005] The utility model aims to provide a self-balancing and wind-resistant gantry to solve the problem of a traffic sign gantry mentioned in the above-mentioned background technology. Firstly, at present, most of the gantry are of an integrated structure, which takes a lot of time in the process of disassembly, assembly and transportation; secondly, the gantry is very easy to shake under the pressure of strong wind and it does not have self-balancing properties. Excessive shaking of the gantry may easily lead to problems with gantry parts or tipping over.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-balancing wind-resistant door frame, comprising a column, a foundation foot and a top frame, the bottom end of the column is connected to the foundation foot by a fixing bolt, the top frame is arranged in the middle of the top ends of the two groups of columns, the top frame comprises a cross beam, a connecting block and a support beam, the two ends of the cross beam are welded with connecting blocks, the middle part of the cross beam is arranged with a support beam welded, and the material of the foundation foot is concrete.

[0007] Furthermore, a signboard is connected to the middle of the top frame through fixing bolts, a through groove is provided in the middle of the connecting block, the column is embedded in the through groove, and the outer surface of the column is arranged with slots, and a fixed limit block is welded to the bottom outer wall of the slot.

[0008] Furthermore, a fixed threaded barrel is embedded in the center of the outer wall of the connecting block, a mounting plate is provided on the side of the connecting block away from the cross beam, a rotating threaded rod is connected to the center of the side of the mounting plate close to the connecting block through a bearing, and the rotating threaded rod is threadedly connected to the fixed threaded barrel.

[0009] Furthermore, an adjusting dial is arranged at one end of the mounting plate away from the rotating threaded rod, an output end of the adjusting dial is connected to the rotating threaded rod, and a push rod is arranged around the rotating threaded rod, and the push rod is embedded in the slot.

[0010] Furthermore, a fixing rod is connected to the top end of the center of the beam, a pull rope is connected to the bottom end of the fixing rod, and a wind-fixing ball is connected to the end of the pull rope away from the fixing rod. A damping rod is arranged at the bottom end of the middle part of the beam, and the top end of the damping rod is in contact with the wind-fixing ball.

[0011] Furthermore, reinforcing ribs are arranged on the outer surface of the column, a ladder is welded on one side of the column, and the column and the top frame are formed by steel pipe processing, and the surface is hot-dip galvanized.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the self-balancing wind-resistant door frame adopts a top rod embedded in the card slot to realize the fixation of the top frame and the column. During installation, the rotating threaded rod can be driven to rotate by twisting the adjustment dial, thereby driving the installation plate to translate. The movement of the installation plate drives the top rod to be embedded in the card slot to complete the fixed installation of the door frame. The force direction of the door frame is changed by the wind-fixing ball, so that the door frame is always in a stable state. The specific contents are as follows:

[0013] A through groove is provided in the middle of the connecting block, and the column is embedded in the through groove. The outer surface of the column is arranged with slots, and a fixed threaded tube is embedded in the center of the outer wall of the connecting block. A mounting plate is provided on the side of the connecting block away from the cross beam. A rotating threaded rod is connected to the center of the side of the mounting plate close to the connecting block through a bearing. The rotating threaded rod is threadedly connected to the fixed threaded tube, and an adjusting dial is provided on the end of the mounting plate away from the rotating threaded rod. During installation, after the column is embedded in the through groove, the rotating threaded rod can be driven to rotate by twisting the adjusting dial, thereby driving the mounting plate to translate. The movement of the mounting plate drives the top rod to be embedded in the slot to complete the fixed installation of the door frame. A fixed rod is connected to the top of the center of the cross beam. The fixed rod plays a supporting role, and a pull rope is connected to the bottom end of the fixed rod. The pull rope is made of steel wire to avoid breakage. The end of the pull rope away from the fixed rod is connected to a wind-fixing ball. The wind-fixing ball balances the resistance and tension of the gantry, so that the gantry is always in a stable state. A damping rod is arranged at the bottom end of the middle part of the crossbeam, and the top of the damping rod is in contact with the wind-fixing ball. The damping rod prevents the wind-fixing ball from excessive shaking. When the gantry encounters strong wind, it will produce a certain vibration. The wind-fixing ball will keep shaking in the opposite direction of the wind direction. The greater the wind force, the greater the vibration amplitude. The two forces resist each other, so as to stabilize the gantry and achieve the effect of self-balancing. The direction of the force of the gantry is changed by the wind-fixing ball, so that the gantry is always in a stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of the self-balancing wind-resistant door frame of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the self-balancing wind-resistant door frame of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the self-balancing wind-resistant door frame mounting plate of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the wind-fixing ball structure of the self-balancing wind-resistant door frame.

[0018] In the figure: 1. column; 2. foundation foot; 3. top frame; 4. crossbeam; 5. connection block; 6. support beam; 7. signboard; 8. through groove; 9. slot; 10. fixed limit block; 11. fixed threaded cylinder; 12. mounting plate; 13. rotating threaded rod; 14. adjusting dial; 15. top rod; 16. fixing rod; 17. pull rope; 18. wind-fixing ball; 19. reinforcing rib; 20. ladder; 21. damping rod. Implementation

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a self-balancing wind-resistant door frame, including a column 1, a foundation foot 2 and a top frame 3. The bottom end of the column 1 is connected with the foundation foot 2 by a fixing bolt. The column 1 plays a supporting role. The foundation foot 2 plays a fixing role and can be embedded in the pit to facilitate the fixing of the door frame. The top frame 3 is arranged in the middle of the top of the two groups of columns 1. The top frame 3 plays a supporting role. The top frame 3 includes a cross beam 4, a connecting block 5 and a supporting beam 6. The two ends of the cross beam 4 are welded with connecting blocks 5. The cross beam 4 plays a supporting role and is divided into an upper beam and a lower beam. The connecting block 5 plays a connecting role and is fixedly connected to the column. The middle part of the cross beam 4 is arranged and welded with a supporting beam 6. The support beam 6 plays the role of supporting the cross beam 4. The material of the foundation foot 2 is concrete.

[0021] The middle part of the top frame 3 is connected with a signboard 7 by fixing bolts, and the signboard 7 can provide a traffic sign. A through groove 8 is arranged in the middle part of the connecting block 5, and the column 1 plays a limiting role. The column 1 is embedded in the through groove 8, and the outer surface of the column 1 is arranged with a card groove 9. The bottom outer wall of the card groove 9 is welded with a fixed limit block 10, which is in contact with the connecting block 5. The fixed limit block 10 plays a limiting role to prevent the top frame 3 from sliding downward.

[0022] A fixed threaded barrel 11 is embedded at the center of the outer wall of the connecting block 5, and a mounting plate 12 is provided on the side of the connecting block 5 away from the cross beam 4. A rotating threaded rod 13 is connected to the center of the side of the mounting plate 12 close to the connecting block 5 through a bearing. The rotating threaded rod 13 can rotate on one side of the mounting plate 12 through the bearing. The rotating threaded rod 13 is threadedly connected to the fixed threaded barrel 11, and the thread lead angle of the rotating threaded rod 13 and the fixed threaded barrel 11 is small and self-locking.

[0023] An adjusting dial 14 is provided at one end of the mounting plate 12 away from the rotating threaded rod 13, and the output end of the adjusting dial 14 is connected to the rotating threaded rod 13. The rotating threaded rod 13 can be driven to rotate by twisting the adjusting dial 14, thereby driving the mounting plate 12 to translate. A push rod 15 is arranged around the rotating threaded rod 13, and the push rod 15 is embedded in the slot 9 to fix the top frame 2 and the column 1. During installation, after the column 1 is embedded in the through slot 8, the rotating threaded rod 13 can be driven to rotate by twisting the adjusting dial 14, thereby driving the mounting plate 12 to translate. The movement of the mounting plate 12 drives the push rod 15 to be embedded in the slot 9 to complete the fixed installation of the door frame.

[0024] A fixing rod 16 is connected to the top of the center of the crossbeam 4, and the fixing rod 16 plays a supporting role. A pull rope 17 is connected to the bottom end of the fixing rod 16, and the pull rope 17 is made of steel wire to prevent breakage. The end of the pull rope 17 away from the fixing rod 16 is connected with a fixed wind ball 18. The fixed wind ball 18 makes the resistance and tension of the door frame reach a balance, so that the door frame is always in a stable state. The fixed wind ball 18 is a solid steel ball with a mass of 0.5%~1.0% of the door frame. A damping rod 21 is arranged at the bottom end of the middle part of the crossbeam 4, and the top of the damping rod 21 is in contact with the fixed wind ball 18. The damping rod 21 prevents the fixed wind ball 18 from excessive shaking. When the door frame encounters strong wind passing through, a certain vibration is generated. The fixed wind ball 18 keeps shaking in the direction opposite to the wind direction. The greater the wind force, the greater the vibration amplitude. The two forces resist each other, so as to stabilize the door frame to achieve the effect of self-balancing. The direction of the force of the door frame is changed by the fixed wind ball 18, so that the door frame is always in a stable state.

[0025] The outer surface of the column 1 is arranged with reinforcing ribs 19, which play an amplifying role to increase the supporting capacity of the column 1. A ladder 20 is welded on one side of the column 1. The ladder 20 is convenient for the staff to climb to the top of the gantry to install the gantry and perform daily maintenance. The column 1 and the top frame 3 are formed by steel pipe processing, and the surface is hot-dip galvanized.

[0026] Working principle: When using the self-balancing wind-resistant door frame, the foundation foot 2 can be embedded in the pit to facilitate the fixing of the door frame, the column 1 is embedded in the through groove 8, and the outer surface of the column 1 is arranged with a card slot 9. The bottom outer wall of the card slot 9 is welded with a fixed limit block 10, which abuts against the connecting block 5. The fixed limit block 10 plays a limiting role to prevent the top frame 3 from sliding downward. During installation, after the column 1 is embedded in the through groove 8, the rotating threaded rod 13 can be driven to rotate by twisting the adjusting dial 14, thereby driving the mounting plate 12 to translate, and the movement of the mounting plate 12 drives the top rod 15 to be embedded in the card slot 9, thereby completing the fixed installation of the gantry, the signboard 7 can provide a traffic sign, when the gantry encounters a strong wind, it will generate a certain vibration, the wind-fixing ball 18 will keep shaking in the direction opposite to the wind direction, the greater the wind force, the greater the vibration amplitude, the two forces resist each other, so as to stabilize the gantry and achieve the effect of self-balancing, the wind-fixing ball 18 is used to change the direction of the force of the gantry, so that the gantry is always in a stable state, the reinforcing rib 19 plays an amplifying role to increase the supporting capacity of the column 1, and a ladder 20 is welded on one side of the column 1, and the ladder 20 is convenient for the staff to go up to the top of the gantry to install the gantry and perform daily maintenance.

Claims

1. A self-balancing wind-resistant portal frame, comprising a column (1), a foundation foot (2) and a top frame (3), characterized in that: The bottom end of the column (1) is connected to a foundation foot (2) via fixing bolts; the top frame (3) is arranged at the middle of the top ends of the two groups of columns (1); the top frame (3) comprises a cross beam (4), a connecting block (5) and a support beam (6); the connecting blocks (5) are welded at both ends of the cross beam (4); the support beam (6) is arranged and welded in the middle of the cross beam (4); and the material of the foundation foot (2) is concrete.

2. The self-balancing wind-resistant gantry according to claim 1, characterized in that: The middle of the top frame (3) is connected to a signboard (7) via fixing bolts, the middle of the connecting block (5) is provided with a through slot (8), the column (1) is embedded in the through slot (8), the outer surface of the column (1) is arranged with slots (9), and the bottom outer wall of the slot (9) is welded with a fixed limit block (10).

3. The self-balancing wind-resistant gantry according to claim 1 is characterized in that: A fixed threaded barrel (11) is embedded at the center of the outer wall of the connection block (5); a mounting plate (12) is provided on the side of the connection block (5) away from the crossbeam (4); a rotating threaded rod (13) is connected to the center of the side of the mounting plate (12) close to the connection block (5) via a bearing; the rotating threaded rod (13) is threadedly connected to the fixed threaded barrel (11).

4. The self-balancing wind-resistant gantry according to claim 3 is characterized in that: An adjusting dial (14) is provided at one end of the mounting plate (12) away from the rotating threaded rod (13); an output end of the adjusting dial (14) is connected to the rotating threaded rod (13); and a push rod (15) is arranged around the rotating threaded rod (13); the push rod (15) is embedded in the slot (9).

5. The self-balancing wind-resistant gantry according to claim 1 is characterized in that: A fixing rod (16) is connected to the top end of the center of the crossbeam (4), a pull rope (17) is connected to the bottom end of the fixing rod (16), an end of the pull rope (17) away from the fixing rod (16) is connected to a wind-fixing ball (18), and a damping rod (21) is arranged at the bottom end of the middle part of the crossbeam (4), the top end of the damping rod (21) is in contact with the wind-fixing ball (18).

6. The self-balancing wind-resistant gantry according to claim 1, characterized in that: The outer surface of the column (1) is arranged with reinforcing ribs (19), a ladder (20) is welded to one side of the column (1), and the column (1) and the top frame (3) are formed by processing steel pipes, and the surface is hot-dip galvanized.

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