A push rod device for opening and closing mechanical doors

Abstract

A push rod device for opening and closing mechanical doors, relating to the field of mechanical door and window switches, includes a fixed rod, a hinge rod, a push rod assembly, and a foot pedal assembly. The fixed rod is fixed to the upper part of the inner surface of the door panel. The left end of the hinge rod is hinged to the door frame, and the lower right end of the hinge rod is slidably mounted on the fixed rod via a screw. The diameter of the middle part of the hinge rod is larger than the diameters of the upper and lower ends. The push rod assembly includes a push rod and a fixed block. The fixed block is fixed to the door panel, and the push rod is slidably mounted inside the fixed block. The upper end of the push rod has a top block that corresponds vertically to the screw. The plug on the lower end of the push rod is inserted into the foot pedal assembly. This utility model has a simple structure and is easy to use, avoiding the inconvenience and safety hazards of climbing ladders to open and close doors.

Description

Technical Field

[0001] This utility model relates to the field of mechanical door and window switches, and in particular to a top rod device for mechanical door switches. Background Technology

[0002] As is well known, some mechanical doors are set quite high, such as warehouse doors and grain depot doors. After opening, they are fixed and locked with screws at the top to prevent the door from closing automatically. However, due to the height, not only do people need to climb up a ladder to tighten the screws after opening the door, but they also need to climb up a ladder to loosen the screws to close the door. This is not only inconvenient to operate, but also poses a safety hazard. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model discloses a push rod device for opening and closing mechanical doors.

[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0005] A push rod device for opening and closing a mechanical door includes a fixed rod, a hinged rod, a push rod assembly, and a foot pedal assembly. The fixed rod is fixed to the upper part of the inner surface of the door panel. The left end of the hinged rod is hinged to the door frame, and the lower right end of the hinged rod is slidably mounted on the fixed rod via a screw. The diameter of the middle part of the hinged rod is larger than the diameter of the upper and lower ends. The push rod assembly includes a push rod and a fixed block. The fixed block is fixed to the door panel, and the push rod is slidably mounted inside the fixed block. The upper end of the push rod corresponds vertically to the screw. The plug on the lower end of the push rod is inserted into the foot pedal assembly. The foot pedal assembly includes a fixed seat, a lever, a fixed plate, and a foot pedal. The fixed seat is fixed to the lower part of the inner surface of the door panel. The recessed socket on the fixed seat corresponds vertically to the plug. The fixed plate is fixed to the middle part of the lower part of the inner surface of the door panel. A rotating shaft is fixed on the fixed plate. The middle part of the lever is rotatably connected to the rotating shaft. A foot pedal is fixed to the right end of the lever. The left end of the lever is located between the stop and the fixed seat and is placed on the stepped surface of the fixed seat.

[0006] The aforementioned top rod device for mechanical door opening and closing has a horizontally placed "L"-shaped fixing rod. Along the length of its horizontal plate, it has a round hole and a long hole sequentially arranged. The round hole is located on the left side of the horizontal plate, and the long hole is connected to the round hole, with the width of the long hole being smaller than the diameter of the round hole. Along the length of its vertical plate, multiple screw holes are evenly spaced. The fixing rod is horizontally fixed to the door panel through screws in these screw holes. The screw is slidably disposed within the round hole or the long hole. The diameter of the round hole is larger than the diameter of the lower end of the stepped shaft but smaller than the diameter of the middle part of the stepped shaft. The diameter of the long hole is larger than the outer diameter of the screw but smaller than the diameter of the lower end of the stepped shaft.

[0007] The aforementioned top rod device for mechanical door opening and closing has two fixing blocks, which are vertically spaced and fixed to the door panel. Each fixing block includes an integrally formed upper semi-ring and a downwardly extending piece at the rear end of the semi-ring. Fixing bolts for fixing to the door panel are provided on both sides of the extending piece. A through hole is provided on the upper semi-ring, and the top rod is slidably disposed in the through hole.

[0008] The aforementioned top rod device for mechanical door opening and closing has two fixing blocks arranged vertically and vertically. The upper fixing block has its semi-circular plate facing upwards, and the lower fixing block has its semi-circular plate facing downwards. A spring is fixed on the bottom surface of each semi-circular plate, and the other end of each spring is limited by a bolt on the top rod.

[0009] The push rod device for mechanical door opening and closing has a stop block and a fixed base with the same width, and the height of the plug is higher than the height of the socket hole.

[0010] The aforementioned push rod device for opening and closing mechanical doors has a nut on the screw rod, and the upper end of the screw rod is fixed in the threaded hole of the stepped shaft.

[0011] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0012] The push rod device for opening and closing mechanical doors described in this utility model features a foot pedal assembly. When in use, the user steps on the foot pedal, pushing the push rod upwards. The upper end of the push rod pushes the screw upwards, causing the step shaft to disengage from the round hole. This allows the door panel to be rotated to close the door. The push rod then moves downwards to its original position under the action of a spring. This utility model has a simple structure and is easy to use, avoiding the inconvenience and safety hazards associated with climbing ladders to open and close doors. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the fixing rod of this utility model.

[0015] Figure 3 This is a side view of the fixing block of this utility model.

[0016] In the diagram: 1. Hinge rod; 2. Fixing rod; 3. Screw; 4. Top block; 5. Fixing block; 6. Top rod; 7. Bolt; 8. Stop block; 9. Plug; 10. Socket; 11. Fixing base; 12. Lever; 13. Shaft; 14. Fixing plate; 15. Foot pedal; 16. Step shaft; 17. Nut; 18. Screw; 19. Round hole; 20. Long hole; 21. Through hole; 22. Fixing bolt; 23. Door panel; 24. Inner door handle; 25. Spring. Detailed Implementation

[0017] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0018] Combined with appendix Figure 1-3 The aforementioned push rod device for opening and closing a mechanical door includes a fixed rod 2, a hinge rod 1, a push rod assembly, and a foot pedal assembly. The fixed rod 2 is fixed to the upper part of the inner surface of the door panel 23. The left end of the hinge rod 1 is hinged to the door frame, and the lower right end of the stepped shaft 16 is slidably mounted on the fixed rod 2 via a screw 3. The push rod assembly includes a push rod 6 and a fixing block 5. The fixing block 5 is fixed to the door panel 23, and the push rod 6 is slidably mounted within the fixing block 5. The top block 4 at the upper end of the push rod 6 corresponds vertically to the screw 3. A nut 17 is provided on the screw 3, and the upper end of the screw 3 is fixed in the threaded hole of the stepped shaft 16. The diameter of the middle part of the stepped shaft 16 is larger than the diameters of the upper and lower ends. A plug is provided on the stop block 8 at the lower end of the push rod 6. 9 is inserted into the foot pedal assembly, which includes a fixed base 11, a lever 12, a fixed plate 14, and a foot pedal 15. The fixed base 11 is fixed to the lower part of the inner surface of the door panel 23. The recessed socket 10 on the fixed base 11 is arranged vertically to the plug 9. The fixed plate 14 is fixed to the middle part of the lower part of the inner surface of the door panel 23. A rotating shaft 13 is fixed on the fixed plate 14. The middle part of the lever 12 is rotatably connected to the rotating shaft 13. The foot pedal 15 is fixed to the right end of the lever 12. The left end of the lever 12 is located between the stop block 8 and the fixed base 11 and is placed on the stepped surface of the fixed base 11. The width of the stop block 8 and the fixed base 11 is the same. The height of the plug 9 is higher than the height of the socket 10 hole.

[0019] Furthermore, the fixing rod 2 is configured as a horizontally placed "L" shape, with a round hole 19 and a long hole 20 sequentially opened along the length of its horizontal plate. The round hole 19 is opened on the left side of the horizontal plate, and the long hole 20 is connected to the round hole 19. The width of the long hole is smaller than the diameter of the round hole 19. Multiple screw holes are evenly spaced along the length of its vertical plate. The fixing rod 2 is horizontally fixed to the door panel 23 by screws 18 in the multiple screw holes. The screw 3 is slidably disposed in the round hole 19 or the long hole 20. The diameter of the round hole 19 is larger than the diameter of the lower end of the stepped shaft 16 and smaller than the diameter of the middle part of the stepped shaft 16. The diameter of the long hole 20 is larger than the outer diameter of the screw 3 and smaller than the diameter of the lower end of the stepped shaft 16.

[0020] Furthermore, there are two fixing blocks 5, which are vertically spaced and fixed to the door panel 23. The fixing block 5 includes an integrally formed upper semi-ring piece and an extension piece extending downward from the rear end of the semi-ring piece. Fixing bolts 22 fixed to the door panel 23 are provided on both sides of the extension piece. A through hole 21 is opened on the upper semi-ring piece, and the top rod is slidably disposed in the through hole 21. The two fixing blocks 5 are arranged vertically and vertically, with the upper fixing block 5 having its semi-ring piece facing upward and the lower fixing block 5 having its semi-ring piece facing downward. A spring is fixed on the bottom surface of each semi-ring piece, and the other end of each spring is limited by a bolt 7 on the top rod 6.

[0021] The push rod device for mechanical door opening and closing described in this utility model is used such that, in use, the hinge rod 1 is hinged to the door frame. When the door needs to be opened, a person pushes the inner door handle 24 on the door panel 23, and the screw 3 moves along the elongated hole 20 of the fixing rod 2 to the round hole 19. When the door panel 23 rotates 90 degrees, the lower end of the step shaft falls into the round hole, limiting the door panel 23 and preventing it from closing. When the door needs to be opened, the foot pedal 15 on the lower right side of the door panel 23 is stepped on, and the lever 12... The left end tilts upward and presses against the lower step surface of the stop block 8, dislodging the plug 9 from the socket 10. This causes the push rod 6 to move upward and compress the spring. The upper end of the push rod 6, the push block 4, presses against the screw rod 3, pushing the lower end of the step shaft 16 out of the round hole 19. Pull the inner door handle 24 on the door panel 23, rotate the door panel 23, and then release the foot pedal 15. The screw rod 3 slides from the round hole 19 into the long hole 20 on the right side. At the same time, the push rod 6 moves downward under the reset of the spring 25 and returns to its original position.

[0022] The parts of this utility model not described in detail are existing technologies.

[0023] The embodiments selected herein for the purpose of disclosing the inventive objectives of this utility model are currently considered appropriate; however, it should be understood that this utility model is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and utility model.

Claims

1. A push rod device for opening and closing a mechanical door, comprising a fixed rod, a hinged rod, a push rod assembly, and a foot pedal assembly, characterized in that: The fixed rod is fixed to the upper part of the inner surface of the door panel. The left end of the hinge rod is hinged to the door frame. The lower right end of the step shaft is slidably set on the fixed rod through the screw. The diameter of the middle part of the step shaft is larger than the diameter of the upper and lower ends. The top rod assembly includes a top rod and a fixed block. The fixed block is fixed to the door panel, and the top rod is slidably set in the fixed block. The top block at the upper end of the top rod corresponds vertically to the screw. The plug on the stop block at the lower end of the top rod is inserted into the foot pedal assembly. The foot pedal assembly includes a fixed seat, a lever, a fixed plate, and a foot pedal. The fixed seat is fixed to the lower part of the inner surface of the door panel. The necked socket on the fixed seat corresponds vertically to the plug. The fixed plate is fixed to the middle part of the lower part of the inner surface of the door panel. A rotating shaft is fixed on the fixed plate. The middle part of the lever is rotatably connected to the rotating shaft. A foot pedal is fixed to the right end of the lever. The left end of the lever is located between the stop block and the fixed seat and is placed on the step surface of the fixed seat.

2. The push rod device for opening and closing a mechanical door according to claim 1, characterized in that: The fixing rod is designed as a horizontally placed "L" shape, with round holes and elongated holes sequentially opened along the length of its horizontal plate. The round holes are opened on the left side of the horizontal plate, and the elongated holes are connected to the round holes. The width of the elongated holes is smaller than the diameter of the round holes. Multiple screw holes are evenly spaced along the length of its vertical plate. The fixing rod is horizontally fixed to the door panel through the screws in the multiple screw holes. The screw is slidably disposed in the round hole or the elongated hole. The diameter of the round hole is larger than the diameter of the lower end of the stepped shaft and smaller than the diameter of the middle part of the stepped shaft. The diameter of the elongated hole is larger than the outer diameter of the screw and smaller than the diameter of the lower end of the stepped shaft.

3. The push rod device for opening and closing a mechanical door according to claim 1, characterized in that: There are two fixing blocks, which are fixed to the door panel at vertical intervals. The fixing block includes an upper half ring piece and an extension piece extending downward from the rear end of the half ring piece. Fixing bolts are provided on both sides of the extension piece to fix it to the door panel. A through hole is opened on the upper half ring piece, and the top rod is slidably set in the through hole.

4. The push rod device for opening and closing a mechanical door according to claim 1, characterized in that: Two fixing blocks are set up one above the other, with the upper fixing block's half-ring facing upwards and the lower fixing block's half-ring facing downwards. A spring is fixed to the bottom surface of each half-ring, and the other end of each spring is limited by a bolt on the top rod.

5. The push rod device for opening and closing a mechanical door according to claim 1, characterized in that: The width of the stop and the mounting base are the same, and the height of the plug is higher than the height of the socket hole.

6. The push rod device for opening and closing a mechanical door according to claim 1, characterized in that: A nut is provided on the screw, and the upper end of the screw is fixed in the threaded hole of the stepped shaft.

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