Civil air defense door opening and closing torque measuring device

Abstract

The utility model discloses a civil defense door opening and closing torque measuring device, relates to the technical field of civil defense door testing, and solves the problems that an electric adjusting structure for universal wheels is lacked, and when the universal wheels are folded, a worker can only lift the device and manually fold the four universal wheels at the bottom in sequence, so that the operation is relatively inconvenient. Comprising a rocker, shaft sleeves, bearings, a sensor, a measuring clamp, a base and a base, the shaft sleeves are of a hollow cylinder structure, the sensor is arranged between the two shaft sleeves, and the two sides of the sensor are embedded into the shaft sleeves. When the device is used, a worker can move the device to a proper position through the universal wheels and start the second motor, the second motor can control the lifting plate to move upwards, the lifting plate can drive the universal wheels to move upwards into the base, the bottom of the base makes contact with the ground, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the field of civil air defense door testing, in particular to a civil air defense door opening and closing torque measuring device. Background Art

[0002] GFM single-leaf steel structure civil air defense door is an important type of civil air defense protection equipment and is widely used in civil air defense projects. The door opening and closing force requirement is no more than 200N, which is an important quality indicator for the inspection of GFM single-leaf steel structure civil air defense door. Tubular dynamometers are often used to measure the opening and closing torque of civil air defense doors. Tubular dynamometers are used to measure the door opening and closing force of GFM single-leaf steel structure civil air defense doors. Because manual measurement is required, a completely unified measurement standard cannot be guaranteed during the measurement process, resulting in many influencing factors. Therefore, the measured values ​​are inaccurate, and it is impossible to make an accurate judgment on whether the quality of the inspected civil air defense door meets the requirements.

[0003] A Chinese utility model (Announcement No.: CN218994598U) discloses a device for measuring the opening and closing torque of a civil air defense door, comprising a base frame body, the base frame body comprising: a universal wheel, a bracket, a telescopic tube, a telescopic screw, a telescopic nut and a storage platform; the bracket is a rectangular parallelepiped frame structure closed at the top and bottom, the universal wheel is arranged at the bottom of the bracket; the telescopic tube is a cylindrical tubular structure, there are four of them, which are respectively arranged at the four corners of the top closed platform of the bracket, and the top of the telescopic tube is connected to the storage platform; a bottom middle position of the storage platform is provided with a The telescopic screw is a cylindrical structure with a thread on the outside; the telescopic nut is a cylindrical structure with a hollow interior, and the telescopic nut is fixedly arranged in the closed middle position of the top of the bracket and is arranged corresponding to the telescopic screw. The inner side of the telescopic nut is provided with a thread corresponding to the telescopic screw; the base is fixedly arranged on the top of the storage platform. According to the embodiment of this application, the civil defense door opening and closing torque measuring device can complete the measurement of the civil defense door torque, while ensuring the accuracy of the measurement data while reducing the volume of the equipment and increasing the portability of the measurement.

[0004] In the process of realizing the present utility model, the inventors found that there are at least the following problems in this technology: there is a lack of an electric adjustment structure for the universal wheels. When folding and retracting the universal wheels, the staff can only lift the equipment and manually fold the four universal wheels at the bottom in turn, which is inconvenient to operate. Therefore, a civil defense door opening and closing torque measuring device is now proposed. Utility Model Content

[0005] In order to improve the problem of lack of electric adjustment structure for universal wheels, when folding and retracting the universal wheels, the staff can only lift the equipment and manually fold the four universal wheels at the bottom in turn, which is inconvenient to operate. The utility model provides a civil defense door opening and closing torque measuring device.

[0006] The utility model provides a device for measuring the opening and closing torque of a civil air defense door, which adopts the following technical solutions:

[0007] A device for measuring the opening and closing torque of a civil air defense door comprises a rocker, a sleeve, a bearing, a sensor, a measuring fixture, a base and a pedestal. The sleeve is a hollow cylindrical structure, and there are two sleeves. The sensor is arranged in the middle of the two sleeves, and both sides of the sensor are embedded in the sleeves. There are two bearings, and the bearings are fixed and arranged on the outside of the two sleeves. The bearings and sleeves are symmetrically arranged on both sides of the sensor. The rocker is arranged on the side of the sleeve not connected to the sensor, and the measuring fixture is installed on the other side opposite to the sleeve.

[0008] The top of the base is provided with a mounting groove, the inner wall of the mounting groove provided on the top of the base is fixedly installed with a first motor, the output end of the first motor is fixedly installed with a bidirectional screw rod, one end of the bidirectional screw rod away from the first motor is rotatably connected to the inner wall of the mounting groove, both ends of the outer surface of the bidirectional screw rod are threadedly connected with a moving block, a first sliding assembly is provided at the bottom of the moving block, the top of the moving block is hinged with a connecting rod, the end of the connecting rod away from the moving block is hinged to the base, and the bottom of the sensor is connected to the base;

[0009] A second motor is fixedly installed inside the base, and a threaded rod is fixedly installed on the vertically downward output end of the second motor. The end of the threaded rod away from the second motor is rotatably connected to the base, and the outer surface of the threaded rod is threadedly connected to a lifting plate. Second sliding components are provided on opposite sides of the lifting plate, and a universal wheel is installed at the bottom of the lifting plate. A first through groove adapted to the universal wheel is provided at the bottom of the base.

[0010] By adopting the above technical solution, when in use, the staff can move the equipment to a suitable position through the universal wheels and start the second motor. The second motor can control the lifting plate to move upward, and the lifting plate can drive the universal wheels to move upward to the inside of the base, so that the bottom of the base contacts the ground, which is simple and convenient to operate.

[0011] Optionally, the measuring fixture includes a fixing rod and a chuck, the fixing rod is a long rod-shaped structure, the bottom of the fixing rod is connected to one side of the sleeve, and the chuck is a cylindrical structure with a hollow interior, and the chuck is installed on the top of the fixing rod by a fixing bolt.

[0012] By adopting the above technical solution, when in use, the staff can adjust the height of the equipment to insert the civil defense door opening and closing handle into the chuck, and then can drive the civil defense door opening and closing handle to rotate by rotating the rocker to measure the torque of the civil defense door opening and closing handle.

[0013] Optionally, the first sliding assembly includes a first sliding block, one side of which is fixedly connected to the moving block, and a first sliding groove adapted to the first sliding block is provided inside the base.

[0014] By adopting the above technical solution, the first sliding block and the first sliding groove can support the moving block, increase the load-bearing capacity of the moving block, and at the same time make the moving block move more smoothly.

[0015] Optionally, a push rod is fixedly mounted on one side of the base, and an anti-slip groove is provided on the outer surface of the push rod.

[0016] By adopting the above technical solution, the anti-slip groove can increase the anti-slip performance of the push rod, and can reduce the situation where the staff's hands slip when pushing the push rod.

[0017] Optionally, an inner groove is provided on the top of the base, and a multi-stage telescopic rod is fixedly installed on the inner bottom wall of the inner groove provided inside the base, and the vertically upward telescopic end of the multi-stage telescopic rod is fixedly connected to the base.

[0018] By adopting the above technical solution, the multi-stage telescopic rod can limit the movement range of the base, thereby reducing the horizontal movement of the base during the lifting and lowering process.

[0019] Optionally, a rubber anti-skid pad is fixedly installed on the bottom of the base, and a second through groove connected to the first through groove is formed inside the rubber anti-skid pad.

[0020] By adopting the above technical solution, the rubber anti-slip pad can increase the friction between the base and the ground, making the base more stable during use.

[0021] Optionally, the second sliding assembly includes a second sliding block, one side of which is fixedly connected to the lifting plate, and a second sliding groove adapted to the second sliding block is provided inside the base.

[0022] By adopting the above technical solution, the second sliding block and the second sliding groove can limit the moving range of the lifting plate and at the same time make the lifting plate move more smoothly.

[0023] Optionally, there are four universal wheels, and the four universal wheels are respectively arranged at the four corners of the bottom of the lifting plate.

[0024] By adopting the above technical solution, the four universal wheels can facilitate the mobile transportation of the equipment.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. When using the utility model, the staff can move the device to a suitable position through the universal wheels and start the second motor. The second motor can control the lifting plate to move upward, and the lifting plate can drive the universal wheels to move upward to the inside of the base, so that the bottom of the base contacts the ground. The operation is simple and convenient.

[0027] 2. When the height of the base needs to be adjusted, the staff can start the first motor, the first motor can drive the bidirectional screw to rotate, the bidirectional screw can drive the moving block to move with the cooperation of the first slider and the first slide groove, and the moving block can drive the base and the chuck upward to a suitable height with the cooperation of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model.

[0029] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0030] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B in the middle.

[0031] Description of reference numerals:

[0032] 1. Rocker; 2. Bushing; 3. Bearing; 4. Sensor; 5. Measuring fixture; 51. Fixed rod; 52. Chuck; 6. Base; 7. Base; 8. First motor; 9. Bidirectional screw; 10. Moving block; 11. First sliding assembly; 111. First slider; 112. First slide; 12. Connecting rod; 13. Second motor; 14. Threaded rod; 15. Lifting plate; 16. Second sliding assembly; 161. Second slider; 162. Second slide; 17. Universal wheel; 18. Push rod; 19. Multi-stage telescopic rod; 20. Rubber anti-slip pad. DETAILED DESCRIPTION

[0033] The following is in conjunction with the appended drawings in the embodiment of the present utility model. Figure 1-3 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0034] Please refer to Figure 1A device for measuring the opening and closing torque of a civil air defense door comprises a rocker arm 1, a sleeve 2, a bearing 3, a sensor 4, a measuring fixture 5, a base 6 and a base 7. The sleeve 2 is a cylindrical structure with a hollow interior, and there are two sleeves 2. The sensor 4 is arranged in the middle position of the two sleeves 2, and both sides of the sensor 4 are embedded in the sleeves 2. There are two bearings 3, and the bearings 3 are fixedly arranged on the outer sides of the two sleeves 2. The bearings 3 and the sleeves 2 are symmetrically arranged on both sides of the sensor 4. The rocker arm 1 is arranged on the side of the sleeve 2 that is not connected to the sensor 4, and a measuring fixture 5 is installed on the other side opposite to it. A torque power meter is fixedly installed on the top of the base 6, and the torque power meter is electrically connected to the sensor 4.

[0035] Please refer to Figure 1 The measuring fixture 5 includes a fixing rod 51 and a chuck 52. The fixing rod 51 is a long rod-shaped structure. The bottom of the fixing rod 51 is connected to one side of the sleeve 2. The chuck 52 is a cylindrical structure with a hollow interior. The chuck 52 is installed on the top of the fixing rod 51 through a fixing bolt. When in use, the staff can adjust the height of the equipment to insert the civil air defense door opening and closing handle into the chuck 52. After that, the civil air defense door opening and closing handle can be driven to rotate by rotating the rocker 1 to measure the torque of the civil air defense door opening and closing handle.

[0036] Please refer to Figure 1 and Figure 2 A mounting groove is provided at the top of the base 7, and a first motor 8 is fixedly installed on the inner wall of the mounting groove provided at the top of the base 7. A bidirectional screw rod 9 is fixedly installed on the output end of the first motor 8, and the end of the bidirectional screw rod 9 away from the first motor 8 is rotatably connected to the inner wall of the mounting groove. Both ends of the outer surface of the bidirectional screw rod 9 are threadedly connected to a moving block 10, and a first sliding assembly 11 is provided at the bottom of the moving block 10. A connecting rod 12 is hinged on the top of the moving block 10, and the end of the connecting rod 12 away from the moving block 10 is hinged to the base 6, and the bottom of the sensor 4 is connected to the base 6.

[0037] Please refer to Figure 1 and Figure 2 The first sliding assembly 11 includes a first slider 111, one side of which is fixedly connected to the moving block 10. A first slide groove 112 is provided inside the base 7 to match the first slider 111. The first slider 111 and the first slide groove 112 can support the moving block 10, increasing the load-bearing capacity of the moving block 10 and making the moving block 10 move more smoothly. The top of the base 7 has an inner groove, and the inner bottom wall of the inner groove inside the base 7 is fixedly mounted with a multi-stage telescopic rod 19. The vertically upward telescopic end of the multi-stage telescopic rod 19 is fixedly connected to the base 6. The multi-stage telescopic rod 19 can limit the movement range of the base 6 and reduce the horizontal movement of the base 6 during the raising and lowering process.

[0038] Please refer to Figure 1 and Figure 3 A second motor 13 is fixedly mounted inside the base 7. A threaded rod 14 is fixedly mounted on the vertically downward output end of the second motor 13. The end of the threaded rod 14, away from the second motor 13, is rotatably connected to the base 7. A lifting plate 15 is threadedly connected to the outer surface of the threaded rod 14. Second sliding assemblies 16 are provided on opposite sides of the lifting plate 15. Universal wheels 17 are mounted on the bottom of the lifting plate 15. A first through-slot is defined at the bottom of the base 7 to accommodate the universal wheels 17. There are four universal wheels 17, located at the four corners of the bottom of the lifting plate 15, making it easy to move and transport the equipment.

[0039] Please refer to Figure 1 and Figure 3 A push rod 18 is fixedly mounted on one side of the base 7. The outer surface of the push rod 18 is provided with an anti-slip groove. The anti-slip groove can increase the anti-slip performance of the push rod 18 and reduce the slipping of the hands of the staff when pushing the push rod 18. A rubber anti-slip pad 20 is fixedly mounted on the bottom of the base 7. A second through groove connected to the first through groove is provided inside the rubber anti-slip pad 20. The rubber anti-slip pad 20 can increase the friction between the base 7 and the ground, making the base 7 more stable when in use. The second sliding assembly 16 includes a second slider 161. One side of the second slider 161 is fixedly connected to the lifting plate 15. A second slide groove 162 adapted to the second slider 161 is provided inside the base 7. The second slider 161 and the second slide groove 162 can limit the moving range of the lifting plate 15 and make the lifting plate 15 move more smoothly.

[0040] The implementation principle of the present invention is as follows: through the design of the rocker 1, the sleeve 2, the bearing 3, the sensor 4, the fixed rod 51, the chuck 52, the base 6, the base 7, the first motor 8, the bidirectional screw 9, the moving block 10, the first sliding assembly 11, the first slider 111, the first slide 112, the connecting rod 12, the second motor 13, the threaded rod 14, the lifting plate 15, the second sliding assembly 16, the second slider 161, the second slide 162, the universal wheel 17, the hand push rod 18, the multi-stage telescopic rod 19 and the rubber anti-slip pad 20, when in use, the staff can move the equipment to a suitable position through the universal wheel 17 and start the second motor 13, the second motor 13 can drive the threaded rod 14 to rotate, and the threaded rod 14 can drive the second slider 161 and the second slide 162 to cooperate with each other. The lifting plate 15 and the universal wheel 17 move upward to the inside of the base 7, so that the bottom of the base 7 contacts the ground. The operation is simple and convenient. After that, the staff can start the first motor 8. The first motor 8 can drive the bidirectional screw 9 to rotate. The bidirectional screw 9 can drive the moving block 10 to move with the cooperation of the first slider 111 and the first slide groove 112. The moving block 10 can drive the base 6 and the chuck 52 upward to a suitable height with the cooperation of the connecting rod 12, so that the civil defense door opening and closing handle can be inserted into the chuck 52. At this time, the staff shakes the rocker 1 to generate a power source, and the rocker 1 can drive the chuck 52 and the civil defense door opening and closing handle. The sensor 4 can measure the torque applied to the civil defense door opening and closing handle, and then transmit the measurement data to the torque power meter, thereby completing the measurement of the torque of the civil defense door opening and closing handle.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for measuring the opening and closing torque of a civil air defense door, comprising a rocker (1), a sleeve (2), a bearing (3), a sensor (4), a measuring fixture (5), a base (6) and a pedestal (7), characterized in that: The shaft sleeve (2) is a cylindrical structure with a hollow interior, and the number of the shaft sleeves (2) is two. The sensor (4) is arranged in the middle position of the two shaft sleeves (2), and both sides of the sensor (4) are embedded in the shaft sleeves (2). The number of the bearings (3) is two, and the bearings (3) are fixedly arranged on the outside of the two shaft sleeves (2) in a corresponding manner. The bearings (3) and the shaft sleeves (2) are symmetrically arranged on both sides of the sensor (4). The rocker (1) is arranged on the side of the shaft sleeve (2) that is not connected to the sensor (4), and a measuring fixture (5) is installed on the other side opposite to the shaft sleeve (2). The top of the base (7) is provided with a mounting groove, and a first motor (8) is fixedly installed on the inner wall of the mounting groove provided on the top of the base (7), and a bidirectional screw rod (9) is fixedly installed on the output end of the first motor (8), and the end of the bidirectional screw rod (9) away from the first motor (8) is rotatably connected to the inner wall of the mounting groove, and both ends of the outer surface of the bidirectional screw rod (9) are threadedly connected to a moving block (10), and a first sliding component (11) is provided at the bottom of the moving block (10), and a connecting rod (12) is hinged at the top of the moving block (10), and the end of the connecting rod (12) away from the moving block (10) is hinged to the base (6), and the bottom of the sensor (4) is connected to the base (6); A second motor (13) is fixedly installed inside the base (7), and a threaded rod (14) is fixedly installed at the vertically downward output end of the second motor (13). The end of the threaded rod (14) away from the second motor (13) is rotatably connected to the base (7). The outer surface of the threaded rod (14) is threadedly connected to a lifting plate (15). Second sliding components (16) are provided on opposite sides of the lifting plate (15). A universal wheel (17) is installed at the bottom of the lifting plate (15), and a first through groove adapted to the universal wheel (17) is provided at the bottom of the base (7).

2. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: The measuring fixture (5) comprises a fixing rod (51) and a chuck (52), wherein the fixing rod (51) is a long rod-shaped structure, the bottom of the fixing rod (51) is connected to one side of the shaft sleeve (2), and the chuck (52) is a cylindrical structure with a hollow interior, and the chuck (52) is mounted on the top of the fixing rod (51) via a fixing bolt.

3. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: The first sliding assembly (11) comprises a first sliding block (111), one side of the first sliding block (111) is fixedly connected to the moving block (10), and a first sliding groove (112) adapted to the first sliding block (111) is provided inside the base (7).

4. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: A push rod (18) is fixedly mounted on one side of the base (7), and an anti-slip groove is provided on the outer surface of the push rod (18).

5. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: An inner groove is provided at the top of the base (7), and a multi-stage telescopic rod (19) is fixedly mounted on the inner bottom wall of the inner groove provided inside the base (7), and the vertically upward telescopic end of the multi-stage telescopic rod (19) is fixedly connected to the base (6).

6. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: A rubber anti-skid pad (20) is fixedly mounted on the bottom of the base (7), and a second through slot communicating with the first through slot is provided inside the rubber anti-skid pad (20).

7. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: The second sliding assembly (16) includes a second sliding block (161), one side of the second sliding block (161) is fixedly connected to the lifting plate (15), and a second sliding groove (162) adapted to the second sliding block (161) is provided inside the base (7).

8. The device for measuring the opening and closing torque of a civil air defense door according to claim 1, characterized in that: There are four universal wheels (17), and the four universal wheels (17) are respectively arranged at the four corners of the bottom of the lifting plate (15).

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