Opening and closing force detection device for civil air defense door of civil air defense project

Abstract

The utility model discloses a civil air defense door opening and closing force detection device for civil air defense engineering, which relates to the technical field of civil air defense door opening and closing force detection and comprises a bearing support, a supporting shaft is rotatably connected to the bottom of the right end of the bearing support, and a walking wheel is fixedly connected to the right end of the supporting shaft. Worm gears are fixedly connected to the outer surfaces of the supporting shafts and located between the walking wheels and the bearing supports, worms are rotationally connected to the right side walls of the bearing supports and located on the tops of the worm gears, and driving motors are fixedly connected to the rear ends of the worms. The civil air defense door counter weight device is reasonable in design structure, the bearing support is placed at one end of the civil air defense door, the rotating shaft is rotated, the rotating shaft drives the adjusting wheel to rotate through the toothed belt, the adjusting wheel drives the adjusting rod to move in the connecting frame, the adjusting rod drives the contact plate to move, the contact plate makes primary contact with the side wall of the civil air defense door, and at the moment, the counter weight is placed on the counter weight frame; and meanwhile, the rotating shaft is secondarily rotated, the bearing support is limited at one end of the civil air defense door, and the civil air defense door has the advantage of being convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of opening and closing force detection of civil air defense doors, in particular to an opening and closing force detection device for civil air defense doors of civil air defense projects. Background Art

[0002] Civil defense doors are doors at the entrances and exits of protective projects. They usually have the characteristics of high thickness, strong sealing, and high strength. There are also valves with vents and other small openings for ventilation or temporary entry and exit of personnel. At present, civil defense projects are standard in all areas. As an important part of civil defense projects, the quality of civil defense doors must be treated with high requirements. After production, civil defense doors usually undergo a series of systematic inspections, among which the opening and closing force of civil defense doors is a very important indicator of civil defense doors.

[0003] When testing civil air defense doors, since they are usually heavier and require more force than ordinary doors, it is difficult for testers to control the speed of pulling the force gauge evenly when testing them. It is difficult to achieve accurate test results of the opening and closing force of civil air defense doors. In addition, the existing opening and closing force detection device is large in size and requires auxiliary equipment to be laid during use, which is inconvenient to use. To this end, we provide a civil air defense door opening and closing force detection device for civil air defense projects to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a device for detecting the opening and closing force of a civil air defense door in a civil air defense project.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting the opening and closing force of a civil air defense door in a civil air defense project, comprising a bearing bracket, wherein the bottom right end of the bearing bracket is rotatably connected to a support shaft, the right end of the support shaft is fixedly connected to a walking wheel, the outer surface of the support shaft is located between the walking wheel and the bearing bracket and is fixedly connected to a worm gear, the right side wall of the bearing bracket is located at the top of the worm gear and is rotatably connected to a worm, the rear end of the worm gear is fixedly connected to a driving motor, the right side wall of the bearing bracket is located at the rear end of the driving motor and is fixedly connected to a speed sensor, the top right end of the bearing bracket is fixedly connected to a connecting frame, and the right top of the connecting frame A counterweight frame is fixedly connected above the walking wheel, a limit rod is fixedly connected to the center position of the counterweight frame, a connecting block is fixedly connected to the bottom of the counterweight frame on the right side of the connecting frame, adjusting rods are slidably connected to the front and rear ends of the connecting frame, an end of the adjusting rod close to the center position of the load-bearing bracket is fixedly connected to a contact plate, an end of the contact plate on the right side away from the center position of the load-bearing bracket is fixedly connected to a guide rod, an end of the connecting frame away from the contact plate is fixedly connected to a rotating ring, the outer surface of the rotating ring is located on the outer wall of the adjusting rod and is rotatably connected to an adjusting wheel, the outer surface of the adjusting wheel is meshed with a toothed belt, and the inside of the toothed belt is located inside the connecting block and meshed with a rotating shaft.

[0008] Furthermore, the load-bearing bracket is arranged in a "U" shape, and the support shaft is arranged at the center position of the bottom of the load-bearing bracket.

[0009] Furthermore, the worm is meshed with the worm wheel, the drive motor is connected to the side wall of the support bracket, and the output end of the drive motor at the rear side extends to the inside of the speed sensor.

[0010] Furthermore, the driving motor operates at a fixed voltage, the speed sensor is composed of a sensor and a circuit board, and the bottom of the speed sensor is arranged in an "L" shape.

[0011] Furthermore, the connecting frame is arranged in a "U" shape, the outer wall of the adjusting rod is provided with a thread, and the inner wall of the contact plate is provided with a rubber pad.

[0012] Furthermore, the contact plate is arranged in an "L" shape, and the guide rod and the connecting frame form a sliding connection.

[0013] Furthermore, the inner wall of the adjusting wheel is provided with a threaded groove meshing with the outer wall of the adjusting rod, the rotating shaft and the connecting block are rotatably connected, and the front and rear ends of the rotating shaft are meshed with the toothed belt by setting gears.

[0014] 3) Beneficial effects:

[0015] Compared with the prior art, the opening and closing force detection device for civil air defense doors in civil air defense projects has the following beneficial effects:

[0016] 1. The utility model places a bearing bracket at one end of the civil air defense door, rotates the rotating shaft, and the rotating shaft drives the adjusting wheel to rotate through a toothed belt. The adjusting wheel drives the adjusting rod to move in the connecting frame, and the adjusting rod drives the contact plate to move. The contact plate makes initial contact with the side wall of the civil air defense door. At this time, the counterweight block is placed on the counterweight frame, and the counterweight block makes the walking wheel close to the ground through the bearing bracket. At the same time, the rotating shaft is rotated for a second time, and the bearing bracket is limited at one end of the civil air defense door. This solves the problem that the existing opening and closing force detection device is large in size and needs to lay auxiliary equipment during use, which makes it inconvenient to use. It has the advantage of being easy to use.

[0017] 2. The utility model drives the motor under a fixed voltage to drive the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the support shaft to rotate, the support shaft drives the walking wheel to rotate, the walking wheel drives the civil air defense door to move, and the speed sensor records the speed information of the driving motor, thereby detecting the opening and closing force of each civil air defense door, solving the problem that it is difficult for the detection personnel to control the speed of pulling the push-pull force gauge evenly, resulting in difficulty in achieving accurate values ​​for the detection results of the opening and closing force of the civil air defense door, and has the advantage of driving the civil air defense door under a fixed voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the positive triaxial measurement of the utility model;

[0019] Figure 2 This is a schematic diagram of the speed sensor of the utility model;

[0020] Figure 3 This is a schematic diagram of the connecting frame of the utility model;

[0021] Figure 4 It is a schematic diagram of the worm gear of the utility model.

[0022] In the figure: 1. load-bearing bracket; 2. supporting shaft; 3. walking wheel; 4. worm gear; 5. worm; 6. driving motor; 7. speed sensor; 8. connecting frame; 9. counterweight frame; 10. limit rod; 11. connecting block; 12. adjusting rod; 13. contact plate; 14. guide rod; 15. rotating ring; 16. adjusting wheel; 17. toothed belt; 18. rotating shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-4As shown, the utility model provides a technical solution: a device for detecting the opening and closing force of a civil air defense door in a civil air defense project, comprising a bearing bracket 1, a support shaft 2 is rotatably connected to the bottom right end of the bearing bracket 1, the bearing bracket 1 is arranged in a "U" shape, the support shaft 2 is arranged at the center position of the bottom of the bearing bracket 1, the right end of the support shaft 2 is fixedly connected to a walking wheel 3, the outer surface of the support shaft 2 is located between the walking wheel 3 and the bearing bracket 1 and is fixedly connected to a worm gear 4, the right side wall of the bearing bracket 1 is located at the top of the worm gear 4 and is rotatably connected to a worm 5, the worm 5 is meshed with the worm wheel 4, and the rear end of the worm 5 is fixedly connected to a driving motor 6.

[0025] A speed sensor 7 is fixedly connected to the rear end of the drive motor 6 on the right side wall of the supporting bracket 1. The drive motor 6 is connected to the side wall of the supporting bracket 1. The output end of the rear side of the drive motor 6 extends to the inside of the speed sensor 7. The drive motor 6 operates under a fixed voltage. The speed sensor 7 is composed of a sensor and a circuit board. The bottom of the speed sensor 7 is in an "L" shape. Under a fixed voltage, the drive motor 6 drives the worm 5 to rotate, the worm 5 drives the worm wheel 4 to rotate, the worm wheel 4 drives the support shaft 2 to rotate, the support shaft 2 drives the walking wheel 3 to rotate, and the walking wheel 3 drives the civil defense door to move. The speed sensor 7 records the speed information of the drive motor 6, thereby detecting the opening and closing force of each civil defense door.

[0026] A connecting frame 8 is fixedly connected to the top of the right end of the load-bearing bracket 1, and the connecting frame 8 is set in a "U" shape. A counterweight frame 9 is fixedly connected to the top of the right side of the connecting frame 8 above the walking wheel 3. The center position of the counterweight frame 9 is fixedly connected to a limit rod 10. The bottom of the counterweight frame 9 is located on the right side of the connecting frame 8 and is fixedly connected to a connecting block 11. The front and rear ends of the connecting frame 8 are slidably connected to an adjusting rod 12, and the outer wall of the adjusting rod 12 is provided with a thread. A contact plate 13 is fixedly connected to one end of the adjusting rod 12 close to the center position of the load-bearing bracket 1, and a rubber pad is provided on the inner wall of the contact plate 13. The contact plate 13 is set in an "L" shape.

[0027] A guide rod 14 is fixedly connected to one end of the right side of the contact plate 13 away from the center of the supporting bracket 1. The guide rod 14 is slidably connected to the connecting frame 8. The setting of the guide rod 14 makes the contact plate 13 move more smoothly. A rotating ring 15 is fixedly connected to one end of the connecting frame 8 away from the contact plate 13. The outer surface of the rotating ring 15 is located on the outer wall of the adjusting rod 12 and is rotatably connected to an adjusting wheel 16. The inner wall of the adjusting wheel 16 is provided with a threaded groove that meshes with the outer wall of the adjusting rod 12. The outer surface of the adjusting wheel 16 is meshed with a toothed belt 17. The inside of the toothed belt 17 is located inside the connecting block 11 and is meshed with a rotating shaft 18. The rotating shaft 18 is connected to the connecting block 11. The connecting block 11 forms a rotating connection, and the front and rear ends of the rotating shaft 18 are meshed with the toothed belt 17 by setting gears. The bearing bracket 1 is placed at one end of the civil defense door, and the rotating shaft 18 is rotated. The rotating shaft 18 drives the adjusting wheel 16 to rotate through the toothed belt 17, and the adjusting wheel 16 drives the adjusting rod 12 to move in the connecting frame 8. The adjusting rod 12 drives the contact plate 13 to move, and the contact plate 13 makes initial contact with the side wall of the civil defense door. At this time, the counterweight block is placed on the counterweight frame 9, and the counterweight block makes the walking wheel 3 close to the ground through the bearing bracket 1. At the same time, the rotating shaft 18 is rotated for the second time, and the bearing bracket 1 is limited at one end of the civil defense door.

[0028] Working principle: When the civil air defense project civil air defense door opening and closing force detection device is in use, the bearing bracket 1 is placed at one end of the civil air defense door, and the rotating shaft 18 is rotated. The rotating shaft 18 drives the adjusting wheel 16 to rotate through the toothed belt 17, and the adjusting wheel 16 drives the adjusting rod 12 to move in the connecting frame 8. The adjusting rod 12 drives the contact plate 13 to move, and the contact plate 13 initially contacts the side wall of the civil air defense door. At this time, the counterweight block is placed on the counterweight frame 9, and the counterweight block makes the walking wheel 3 close to the ground through the bearing bracket 1. At the same time, the rotating shaft 18 is rotated for the second time. The bearing bracket 1 is limited at one end of the civil air defense door. Under a fixed voltage, the driving motor 6 drives the worm 5 to rotate, and the worm 5 drives the worm wheel 4 to rotate. The worm wheel 4 drives the support shaft 2 to rotate, and the support shaft 2 drives the walking wheel 3 to rotate. The walking wheel 3 drives the civil air defense door to move, and the speed sensor 7 records the speed information of the driving motor 6, thereby detecting the opening and closing force of each civil air defense door.

Claims

1. A device for detecting the opening and closing force of a civil air defense door in a civil air defense project, comprising a bearing bracket (1), characterized in that: The right end bottom of the bearing bracket (1) is rotatably connected to a support shaft (2), the right end of the support shaft (2) is fixedly connected to a walking wheel (3), the outer surface of the support shaft (2) is located between the walking wheel (3) and the bearing bracket (1) and is fixedly connected to a worm gear (4), the right side wall of the bearing bracket (1) is located at the top of the worm gear (4) and is rotatably connected to a worm (5), the rear end of the worm gear (5) is fixedly connected to a driving motor (6), the right side wall of the bearing bracket (1) is located at the rear end of the driving motor (6) and is fixedly connected to a speed sensor (7), the right end top of the bearing bracket (1) is fixedly connected to a connecting frame (8), the right side top of the connecting frame (8) is located above the walking wheel (3) and is fixedly connected to a counterweight frame (9), and the center position of the counterweight frame (9) is fixedly connected to a limit rod (1 0), the bottom of the counterweight frame (9) is located on the right side of the connecting frame (8) and is fixedly connected to a connecting block (11), the front and rear ends of the connecting frame (8) are slidably connected to adjusting rods (12), one end of the adjusting rod (12) close to the center position of the load-bearing bracket (1) is fixedly connected to a contact plate (13), the right end of the contact plate (13) away from the center position of the load-bearing bracket (1) is fixedly connected to a guide rod (14), the end of the connecting frame (8) away from the contact plate (13) is fixedly connected to a rotating ring (15), the outer surface of the rotating ring (15) is located on the outer wall of the adjusting rod (12) and is rotatably connected to an adjusting wheel (16), the outer surface of the adjusting wheel (16) is meshed with a toothed belt (17), and the inside of the toothed belt (17) is located inside the connecting block (11) and is meshed with a rotating shaft (18).

2. According to claim 1, the device for detecting the opening and closing force of civil air defense doors in civil air defense projects is characterized in that: The load-bearing bracket (1) is arranged in a "U" shape, and the support shaft (2) is arranged at the center position of the bottom of the load-bearing bracket (1).

3. The device for detecting the opening and closing force of a civil air defense door of a civil air defense project according to claim 1 is characterized in that: The worm (5) is meshed with the worm wheel (4), the drive motor (6) is connected to the side wall of the support bracket (1), and the output end of the rear side of the drive motor (6) extends to the inside of the speed sensor (7).

4. The device for detecting the opening and closing force of a civil air defense door of a civil air defense project according to claim 1 is characterized in that: The driving motor (6) operates at a fixed voltage. The rotation speed sensor (7) is composed of a sensor and a circuit board. The bottom of the rotation speed sensor (7) is arranged in an "L" shape.

5. The device for detecting the opening and closing force of a civil air defense door of a civil air defense project according to claim 1 is characterized in that: The connecting frame (8) is arranged in a "U" shape, the outer wall of the adjusting rod (12) is provided with a thread, and the inner wall of the contact plate (13) is provided with a rubber pad.

6. The device for detecting the opening and closing force of a civil air defense door in a civil air defense project according to claim 1 is characterized in that: The contact plate (13) is arranged in an "L" shape, and the guide rod (14) is slidably connected to the connecting frame (8).

7. The device for detecting the opening and closing force of a civil air defense door in a civil air defense project according to claim 1 is characterized in that: The inner wall of the adjusting wheel (16) is provided with a threaded groove meshing with the outer wall of the adjusting rod (12); the rotating shaft (18) and the connecting block (11) are rotatably connected; the front and rear ends of the rotating shaft (18) are meshed with the toothed belt (17) through the provision of gears.

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