Escape window opening and closing force measuring tool and escape window opening and closing force measuring device

Abstract

The present invention relates to a tool and device for measuring the opening and closing force of an escape window. The tool comprises a transverse connector with longitudinal arms provided at both ends of the transverse connector in the longitudinal direction. The ends of the two longitudinal arms are provided with hooking structures for hooking with the handles of the escape window. The distance between the two longitudinal arms along the length of the transverse connector is adjustable. The side of the transverse connector facing the longitudinal arms is provided with a pressure-bearing structure for supporting or connecting a pressure sensor. The distance between the two arms on the transverse connector is adjustable, allowing hooking with handles at different distances, making it suitable for measuring the opening and closing force of escape windows of various specifications.

Description

Technical Field

[0001] The invention relates to an escape window opening and closing force measuring tool and an escape window opening and closing force measuring device. Background Art

[0002] Car accidents happen frequently, some are caused by arson, high-temperature spontaneous combustion, others by collisions, rollovers, sinking in water, and even terrorist hijackings due to various reasons. If the occupants of a car cannot escape in time or are unable to get help from the outside, it often leads to fatal dangers. Therefore, it is extremely important that the vehicle escape windows are fast, unobstructed, and convenient. At present, the escape windows of various types of buses, coaches, etc. are mostly fully enclosed windows, especially as more and more vehicles use LNG as a vehicle fuel. If a fire accident occurs, the circuit system of the bus's automatic door is easily damaged, making it difficult or even impossible to open the door in a short period of time, further increasing the difficulty of escape. For this reason, the existing technology has an escape window set on the roof of the car. When in use, the occupants of the car forcefully flip the escape window upwards, and the occupants of the car escape through the escape window.

[0003] Such escape windows in the prior art include a top windshield disclosed in the Chinese utility model patent specification with authorization announcement number CN204095473U, which is essentially equivalent to an escape window and includes a top cover and an inner cover. The front and rear ends of the top cover are respectively provided with a pushing and pulling device and an opening device. The upper part of the top cover is provided with a rain shield and a rain shield ring. The middle part of the inner cover is provided with a buckle structure. The inner opening device is provided at one end of the inner cover, and the outer opening device is provided at one end of the top cover. The national standard "GB / T 23334-2009" requires that "under normal operating conditions, the emergency roof window should open and close flexibly. Manually opening the emergency exit should take no more than 5 seconds. The opening and closing force of the emergency roof window when opened to the ventilation position should be no more than 196N, and the opening and closing force of the emergency roof window when opened to the emergency exit position should be no more than 50N." Therefore, the opening force of the emergency window on a bus should be moderate. If the opening force is too strong, it will be difficult for occupants to open the window, hindering escape. If the opening force is too weak, the window will easily pop open when the bus is traveling on bumpy or steep roads, resulting in poor sealing of the window. Bus emergency windows come in a variety of sizes, and currently there is no measurement tool that can measure the opening and closing force of these various sizes of windows. Summary of the Invention

[0004] The purpose of the present invention is to provide an escape window opening and closing force measuring tool that can measure the opening and closing force of escape windows of various specifications; the purpose of the present invention is also to provide an escape window opening and closing force measuring device.

[0005] To achieve the above-mentioned purpose, the technical solution of the escape window opening and closing force measuring tool of the present invention is:

[0006] A tool for measuring the opening and closing force of an escape window includes a transverse connecting piece, wherein longitudinal pull arms are provided at both ends of the transverse connecting piece in the length direction, and the ends of the two longitudinal pull arms are provided with hook structures for hooking with the handles of the escape window. The distance between the two longitudinal pull arms in the length direction of the transverse connecting piece is adjustable, and a pressure-bearing structure for supporting or connecting a pressure sensor is provided on the side of the transverse connecting piece facing the longitudinal pull arms.

[0007] Its beneficial effect is that the distance between the two pulling arms on the horizontal connecting piece is adjustable, and can be hooked with handles at different distances, and can be suitable for measuring the opening and closing force of escape windows of various specifications.

[0008] Specifically, the transverse connector is a horizontal plate, and the pull arms are L-shaped plates. The horizontal plate and L-shaped plates are connected by bolts. The bolt holes provided on the horizontal edges of the horizontal plate or L-shaped plate are elongated holes extending along the length of the horizontal plate, allowing the distance between the two pull arms along the length of the transverse connector to be adjustable. The horizontal plate and L-shaped plate are connected by bolts, and the horizontal plate or L-shaped plate has elongated holes. The elongated holes allow the distance between the two hook structures to be adjusted, making it suitable for escape windows of various sizes.

[0009] Furthermore, the hook structure is a bent section provided at the end of the longitudinal side of the L-shaped plate and extending along the length direction of the transverse connecting member. The hook structure being a bent section helps to enhance the strength of the hook structure.

[0010] Furthermore, the pressure-bearing structure is a support plane arranged between the two pulling arms. The support plane is easy to set up and enhances the stability of the pressure sensor.

[0011] The technical solution of the escape window opening and closing force measuring device of the present invention is:

[0012] A device for measuring the opening and closing force of an escape window includes a transverse connecting member, longitudinal pull arms are provided at both ends of the transverse connecting member in the length direction, the ends of the two longitudinal pull arms are provided with hook structures for hooking with the handles of the escape window, the distance between the two longitudinal pull arms in the length direction of the transverse connecting member is adjustable, and a pressure sensor is provided on the side of the transverse connecting member facing the longitudinal pull arms.

[0013] Its beneficial effect is that the distance between the two pulling arms on the horizontal connecting piece is adjustable, and can be hooked with handles at different distances, and can be suitable for measuring the opening and closing force of escape windows of various specifications.

[0014] Specifically, the transverse connector is a horizontal plate, and the pull arms are L-shaped plates. The horizontal plate and L-shaped plates are connected by bolts. The bolt holes provided on the horizontal edges of the horizontal plate or L-shaped plate are elongated holes extending along the length of the horizontal plate, allowing the distance between the two pull arms along the length of the transverse connector to be adjustable. The horizontal plate and L-shaped plate are connected by bolts, and the horizontal plate or L-shaped plate has elongated holes. The elongated holes allow the distance between the two hook structures to be adjusted, making it suitable for escape windows of various sizes.

[0015] Furthermore, the hook structure is a bent section provided at the end of the longitudinal side of the L-shaped plate and extending along the length direction of the transverse connecting member. The hook structure being a bent section helps to enhance the strength of the hook structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the escape window opening and closing force measuring tool of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the horizontal plate;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the pulling arm;

[0019] Figure 4 This is a schematic diagram of the use of the escape window opening and closing force measurement tool of the present invention;

[0020] In the attached figure: 1. Pull arm; 11. Hook; 12. Long hole; 2. Horizontal board; 21. Connecting hole; 3. Escape window; 31. Handle. DETAILED DESCRIPTION

[0021] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0022] The first embodiment of the tool for measuring the opening and closing force of an escape window of the present invention is as follows: Figures 1 to 4 As shown, it includes a horizontal plate 2 and pull arms 1 located at both ends of the horizontal plate in the length direction. The horizontal plate 2 is a long strip structure. The long strip horizontal plate 2 has two connecting holes 21 that pass through the thickness direction of the horizontal plate 2. The aperture of the connecting hole 21 in this embodiment is 8.5 mm. Of course, in other implementations, the aperture of the connecting hole 21 can be set arbitrarily as needed.

[0023] The pull arm 1 is an L-shaped plate-like structure. The horizontal edge of the L-shaped plate is provided with an elongated hole 12 extending along the length of the horizontal plate 2. The elongated hole 12 is a through hole. The upper end of the pull arm 1 has a bent structure, which forms a hook 11 that hooks onto the handle 31 on the escape window 3. The upper and lower surfaces of the hook 11 are both flat. This configuration is designed to ensure a secure connection with the handle 31 on the escape window. It can be seen that the pull arm 1 and the hook 11 in this embodiment are made integrally. In other embodiments, the hook 11 can also be provided separately from the pull arm 1, that is, the pull arm 1 is L-shaped, and the horizontal edge of the L-shaped pull arm 1 is provided with an elongated hole 12. The end of the vertical portion of the L-shaped pull arm 1 is connected to the hook 11. The hook 11 and the pull arm 1 can be connected by welding, riveting, or other connection methods.

[0024] The transverse plate 2 has a pressure-bearing structure for supporting the pressure sensor between the positions where the transverse plate 2 is connected to the two pulling arms 1 . The pressure-bearing structure is a supporting plane.

[0025] When assembling the escape window opening and closing force measuring tool of the present invention, the long holes 12 on the two pulling arms 1 are aligned with the connecting holes 21 on the horizontal plate 2, and fastening bolts are inserted into the connecting holes 21 of the horizontal plate 2 and the long holes 12 of the pulling arms 1. The two pulling arms 1 are fixedly connected to the horizontal plate 2 respectively by the fastening bolts.

[0026] Reference Figure 4 It can be seen that when the escape window opening and closing force measuring tool of the present invention measures the closing force of the escape window, the two pulling arms 1 can move in the length direction of the horizontal plate 2 through the long hole 12. For escape windows of different widths, the distance between the two pulling arms 1 can be adjusted so that they are hooked on the grab handles 31 at both ends of the escape window 3 in the width direction. Then, the pressure sensor is placed on the horizontal plate 2, and the pressure sensor and the horizontal plate 2 are held by hand. The escape window is pulled downward with force to measure the opening and closing force of the escape window.

[0027] When measuring the opening force of an escape window using the present invention's emergency window opening and closing force measurement tool, the pull arm only needs to have an appropriately sized active plane relative to the escape window, regardless of the position of the catch. For ease of measurement, the window opening force measurement point is located at the intersection of the line connecting the catch and the symmetry axis of the escape window.

[0028] The escape window has three operating states: closed (the escape window is fully closed), single-open (the escape window is in a single ventilation state), and emergency exit state. When the escape window is closed, the escape window opening and closing force measurement tool of the present invention is used in conjunction with a pressure sensor to measure the thrust required to move the escape window from the closed state to the single-open state. The measurement is repeated three times and the average value is calculated. When the escape window is in a single-open state, the escape window opening and closing force measurement tool of the present invention is used in conjunction with a pressure sensor to measure the pulling force required to pull the escape window to the closed state at the front and rear ends of the escape window. The measurement is repeated three times and the average value is calculated. When the escape window is in a double-open state, the escape window opening and closing force measurement tool of the present invention is used in conjunction with a pressure sensor to measure the thrust required to push the escape window to the maximum open state. The measurement is repeated three times and the average value is calculated.

[0029] The second embodiment of the escape window opening and closing force measurement tool of the present invention differs from the first embodiment in that only one arm is bolted to the horizontal plate; the other arm can be welded, riveted, or otherwise connected to the horizontal plate. The arm bolted to the horizontal plate is provided with an elongated hole, allowing the arm to move along the length of the horizontal plate through the elongated hole to adjust the distance between the arm and the other arm. All other features are the same as those of the first embodiment and are not further described.

[0030] The third specific embodiment of the escape window opening and closing force measuring tool of the present invention is different from the first specific embodiment of the escape window opening and closing force measuring tool in that the bolt through-holes on the horizontal plate in this embodiment are long holes, and the bolt through-holes on the pulling arm are ordinary through-holes. The rest are the same as the first specific embodiment and will not be repeated here.

[0031] The specific embodiment 4 of the escape window opening and closing force measuring tool of the present invention is different from the specific embodiment 2 of the escape window opening and closing force measuring tool in that the bolt through-holes on the horizontal plate in this embodiment are long holes. The rest are the same as the specific embodiment 2 and will not be repeated here.

[0032] The fifth specific embodiment of the escape window opening and closing force measuring tool of the present invention is different from the first specific embodiment of the escape window opening and closing force measuring tool in that the bolt through holes on the horizontal plate and the pull arm in this embodiment are all bolt through holes, and the rest are the same as the first specific embodiment and will not be repeated.

[0033] Specific embodiment 6 of the escape window opening and closing force measurement tool of the present invention differs from embodiment 1 of the escape window opening and closing force measurement tool in that the horizontal plate in this embodiment has a slot extending along its length, and the pull arms slide within the slot. The horizontal plate has a top screw that locks the pull arms when the distance between the two pull arms is adjusted to hook with the handle on the escape window. In other embodiments, the portion that slides within the slot of the horizontal plate has a spring pin. The horizontal plate is provided with multiple fixing holes arranged along its length. The spring pins cooperate with different fixing holes to adjust the distance between the two pull arms. All other aspects are the same as those in embodiment 1 and are not further described.

[0034] Specific embodiment 7 of the emergency window opening and closing force measurement tool of the present invention differs from embodiment 1 in that the horizontal plate in this embodiment is a tubular structure with internal threads at each end. The horizontal portions of the two pull arms are each provided with external threads that connect to the tubular plate. Rotating the horizontal plate allows for adjustment of the distance between the two pull arms. All other aspects are the same as embodiment 1 and are not further described.

[0035] A specific embodiment of the emergency window opening and closing force measurement device of the present invention includes an emergency window opening and closing force measurement tool and a pressure sensor connected to the tool. The pressure sensor in this embodiment is a pedal force dynamometer with a range of 1500N and an accuracy of 0.5%FS. In other embodiments, the pressure sensor may also be an IWE crane scale manufactured by Changzhou Yongsheng Electronic Measurement Co., Ltd. The structure of the emergency window opening and closing force measurement tool in this embodiment is identical to that of the aforementioned embodiments and will not be further described.

Claims

1. A tool for measuring the opening and closing force of an escape window, characterized by: It includes a transverse connecting piece, and longitudinal pulling arms are provided at both ends of the transverse connecting piece in the length direction. The transverse connecting piece is a long horizontal plate, and the pulling arm is an L-shaped plate. The horizontal side of the L-shaped plate is connected to the transverse plate by bolts, and the ends of the two longitudinal pulling arms are provided with a hook structure for hooking with the handle of the escape window. The upper end of the vertical part of the L-shaped plate has a bending structure, and the bending section forms the hook structure. The distance between the two longitudinal pulling arms in the length direction of the transverse connecting piece is adjustable so that the hook structure can cooperate with the handle hooks at different distances. The side of the transverse connecting piece facing the longitudinal pulling arm is provided with a pressure-bearing structure for supporting or connecting the pressure sensor; the transverse plate is a tubular structure.

2. The escape window opening and closing force measurement tool according to claim 1, characterized in that: The bolt through holes arranged on the horizontal side of the horizontal plate or the L-shaped plate are long holes extending along the length direction of the horizontal plate so that the distance between the two pulling arms in the length direction of the horizontal connecting member can be adjusted.

3. The escape window opening and closing force measuring tool according to claim 1 or 2, characterized in that: The pressure-bearing structure is a supporting plane arranged between the two pulling arms.

4. An escape window opening and closing force measuring device, characterized in that: It includes a transverse connecting piece, and longitudinal pulling arms are provided at both ends of the transverse connecting piece in the length direction. The transverse connecting piece is a long horizontal plate, and the pulling arm is an L-shaped plate. The horizontal side of the L-shaped plate is connected to the transverse plate by bolts, and the ends of the two longitudinal pulling arms are provided with a hooking structure for hooking with the handle of the escape window. The upper end of the vertical part of the L-shaped plate has a bending structure, and the bending section forms the hooking structure. The distance between the two longitudinal pulling arms in the length direction of the transverse connecting piece can be adjusted so that the hooking structure can be hooked with handles at different distances. A pressure sensor is provided on the side of the transverse connecting piece facing the longitudinal pulling arm; the transverse plate is a tubular structure.

5. The device for measuring the opening and closing force of an escape window according to claim 4, characterized in that: The bolt through holes arranged on the horizontal side of the horizontal plate or the L-shaped plate are long holes extending along the length direction of the horizontal plate so that the distance between the two pulling arms in the length direction of the horizontal connecting member can be adjusted.

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