A window-breaking device, a car door, and a car

Abstract

This utility model discloses a window-breaking device, a car door, and a car, comprising: an impact assembly including a base, an impact head, an energy storage component, and a blocking component. The impact head is disposed on the base, and the energy storage component is disposed between the base and the impact head. The base has a guide path to guide the impact head outward. The impact head has a limiting structure, and the blocking component is disposed on the base, cooperating with the limiting structure of the impact head to confine the impact head to a non-impact position; and a triggering component disposed on the base, including a counterweight. The triggering component can swing or move on the base using the inertia of the counterweight, thereby causing the blocking component to separate from the limiting structure of the impact head and releasing the impact head. This utility model provides a window-breaking device that requires no external energy, has a simple structure, and can directly utilize collision energy for triggering, thereby improving the escape success rate in side-impact accidents.

Description

Technical Field

[0001] This utility model is applicable to the automotive field, and in particular relates to a window breaking device, a car door, and a car. Background Technology

[0002] With the increasing number of cars on the road, the frequency of traffic accidents, especially side-impact accidents, has placed higher demands on occupant safety. In side-impact scenarios, car doors may become impossible to open due to structural deformation, and concealed handles and electronic door locks may fail, obstructing occupant escape routes. Current technologies primarily rely on users carrying traditional window-breaking tools or car-mounted window-breaking devices (mechanical handles and electronic devices). Traditional window-breaking tools (such as escape hammers and headrest steel tubes) require active use by the occupant, but in side-impact accidents, occupants may be unable to operate them effectively due to injury, fainting, panic, or limited space. Experiments show that using headrest steel tubes to break windows requires multiple attempts and has a low success rate.

[0003] Furthermore, existing automatic window-breaking devices mostly rely on electronic sensors or independent power sources (such as compressed gas or explosives). For example, an electromagnetic window-breaking device 10 or a device with built-in explosives is triggered by a water droplet sensor to break the glass. Such solutions require additional energy supply and may fail when the vehicle is submerged in water or experiences electrical malfunctions. They also have high maintenance costs and pose safety hazards. In addition, electronic triggering systems involve multiple stages of signal detection, processing, and execution, and delays can affect the golden escape time. Studies show that the optimal escape window is within 30 seconds of a side impact, but current technology cannot guarantee real-time response.

[0004] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a window breaking device, a car door, and a car.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] In a first aspect, a window-breaking device includes:

[0008] An impact assembly includes a base, an impact head, an energy storage component, and a blocking component. The impact head is disposed on the base, the energy storage component is disposed between the base and the impact head, the base has a guide path for guiding the impact head to impact outward, the impact head has a limiting structure, and the blocking component is disposed on the base. The blocking component cooperates with the limiting structure of the impact head and limits the impact head to a non-impact position.

[0009] A triggering component is disposed on the base. The triggering component includes a counterweight. The triggering component can swing or move on the base by utilizing the inertia of the counterweight, thereby causing the blocking component to separate from the limiting structure of the impact head and releasing the impact head.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the triggering component includes a triggering arm extending to one side from the counterweight, the triggering component is mounted on the base via a pivot, the blocking component has a triggering end face, the triggering arm of the triggering component extends to the triggering end face, the triggering end face is an inclined surface inclined along the swing direction of the triggering arm, the triggering arm of the triggering component can swing around the pivot using the inertia of the counterweight and abut against the triggering end face of the blocking component, thereby causing the blocking component to separate from the limiting structure of the impact head and releasing the impact head.

[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the base is provided with a sleeve, the impact head is disposed inside the sleeve, the inner cavity of the sleeve forms a guide path extending along the length direction of the impact head, the limiting structure includes a limiting protrusion disposed on the side wall of the impact head, the blocking member is disposed in a cap shape at the end of the sleeve, the blocking member is provided with a through hole for the impact head to pass through, the trigger end face of the blocking member extends obliquely in the circumferential direction outside the through hole, the blocking member is rotatable around the impact head at the end of the sleeve, and the blocking member is provided with a notch in the hole wall of the through hole to release the limiting protrusion.

[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the blocking member includes a sidewall portion extending along the length direction of the sleeve and a tail edge extending radially inward from the sidewall portion, the outer peripheral surface of the sleeve is provided with an annular groove, and the tail edge is embedded in the annular groove.

[0013] In combination with the first aspect and the above-described implementation, in some implementations of the first aspect, a first ball bearing is provided between the tail edge and the annular groove.

[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the energy storage component includes a first elastic component disposed inside the sleeve.

[0015] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the trigger arm has a second ball bearing at one end that mates with the trigger end face.

[0016] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the base is provided with a reverse limiting structure for cooperating with the triggering component, and the rotating shaft is provided with a second elastic component, which acts on the triggering component to cause the triggering component to abut against the reverse limiting structure.

[0017] The second aspect is a vehicle door that includes the window-breaking device described in any implementation of the first aspect.

[0018] Thirdly, an automobile includes a door as described in any implementation of the second aspect.

[0019] One of the above technical solutions has at least one of the following advantages or beneficial effects: This utility model adopts a purely mechanical inertia-triggered structure, utilizing the inertia of the counterweight to trigger the impact component during a side impact. During a side impact, under the action of the impact force and the counterweight's own inertia, the counterweight is forced to swing or move on the base, thereby causing the blocking component to separate from the limiting structure of the impact head, releasing the fixed constraint on the impact head. The energy storage component instantly releases energy, driving the impact head to rush outward along the guide path, thus enabling it to strike the edge of the car window (stress concentration point) at high speed in a vertical direction, shattering the glass and achieving window breaking.

[0020] This invention relates to a window-breaking device that requires no external power source, has a simple structure, and can be directly triggered by collision energy, thereby improving the escape success rate in side-impact accidents. Simultaneously, by utilizing a mechanical structure to directly respond to inertial forces, the time from triggering to window-breaking is shorter (only 10-30 milliseconds), far exceeding that of electronic systems (>200 milliseconds), ensuring window breaking is completed within the golden escape time. Furthermore, it has no circuit components, allowing it to operate stably over a wider temperature range (-40℃ to 85℃) and in immersion environments, resulting in a lower failure rate. Moreover, the standardized structural components reduce unit costs and eliminate the need for regular battery replacements or sensor maintenance.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of one embodiment of the window-breaking device of this utility model;

[0024] Figure 2 This is a structural cross-sectional view of one embodiment of the window-breaking device of this utility model;

[0025] Figure 3 This is an exploded view of one embodiment of the window-breaking device of this utility model;

[0026] Figure 4 This is a schematic diagram showing the usage state of one embodiment of the window-breaking device of this utility model. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0029] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0030] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0031] See Figures 1-3This utility model provides a window breaking device that can be installed in a car door or body. The window breaking device includes an impact component 100 and a triggering component 200. The impact component 100 includes a base 101, an impact head 102, an energy storage component 103, and a blocking component 104. The impact head 102 has a pointed tip and is disposed on the base 101 with the pointed tip facing outward. The energy storage component 103 is disposed between the base 101 and the impact head 102. The base 101 is provided with a guide path to guide the impact head 102 to impact outward. The impact head 102 is provided with a limiting structure. The blocking component 104 is disposed on the base 101 and cooperates with the limiting structure of the impact head 102 to limit the impact head 102 to a non-impact position.

[0032] The triggering component 200 is disposed on the base 101. The triggering component 200 includes a counterweight 201. The triggering component 200 can swing or move on the base 101 by utilizing the inertia of the counterweight 201, thereby causing the blocking component 104 to separate from the limiting structure of the impact head 102 and releasing the impact head 102.

[0033] Combination Figures 1-4 This utility model adopts a purely mechanical inertia-triggered structure, utilizing the inertia of the counterweight 201 to trigger the impact component 100 during a side impact. During a side impact, under the action of the impact force and the inertia of the counterweight 201 itself, the counterweight 201 is forced to swing or move on the base 101, thereby causing the blocking component 104 to separate from the limiting structure of the impact head 102, releasing the fixed constraint on the impact head 102. The energy storage component 103 instantly releases energy, driving the impact head 102 to rush outward along the guide path, thus enabling it to impact the edge of the car window (stress concentration point) at high speed in a vertical direction, shattering the glass 300 and achieving window breaking.

[0034] This invention relates to a window-breaking device that requires no external power source, has a simple structure, and can be directly triggered by collision energy, thereby improving the escape success rate in side-impact accidents. Simultaneously, by utilizing a mechanical structure to directly respond to inertial force, the window-breaking action is completed in just 10-30 milliseconds, far exceeding the time of electronic systems (>200 milliseconds), ensuring window breaking is completed within the golden escape time. Furthermore, it has no circuit components, can operate stably in a temperature range of -40℃ to 85℃ and in immersion environments, resulting in a lower failure rate. Moreover, the standardized structural components reduce unit costs and eliminate the need for regular battery replacements or sensor maintenance.

[0035] In some embodiments, the triggering member 200 is disposed on the back side of the blocking member 104 and is movable on the base 101 to push against the blocking member 104 from the back side. Upon side impact, under the influence of the impact force and the inertia of the counterweight 201, the triggering member 200 moves on the base 101 toward the blocking member 104 and pushes against the blocking member 104 from the back side, thereby causing the blocking member 104 to move and separate from the limiting structure of the impact head 102, thus releasing the impact head 102. The blocking member 104 can be configured to separate from the limiting structure of the impact head 102 by rotation, swinging, translation, etc. For example, by providing a wedge-shaped surface on the back side of the blocking member 104 that cooperates with the triggering member 200, when the triggering member 200 approaches the blocking member 104, the wedge-shaped surface cooperation drives the blocking member 104 to move laterally away from the impact head 102, thereby separating it from the limiting structure of the impact head 102.

[0036] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The triggering component 200 includes a triggering arm 202 extending to one side from the counterweight 201. The triggering component 200 is mounted on the base 101 via a pivot 203, which is located between the counterweight 201 and the triggering arm 202. The triggering component 200 forms a lever structure via the pivot. The triggering component 200 can rotate around the pivot 203 based on the inertia of the counterweight 201 when a side impact occurs. The blocking component 104 is provided with a triggering end face 105. The triggering arm 202 of the triggering component 200 extends to the triggering end face 105. The triggering end face 105 is an inclined surface that is inclined along the swing direction of the triggering arm 202. The triggering arm 202 of the triggering component 200 can swing around the pivot 203 using the inertia of the counterweight 201 and abut against the triggering end face 105 of the blocking component 104, thereby causing the blocking component 104 to separate from the limiting structure of the impact head 102 and release the impact head 102. When a side impact occurs, under the action of the impact force and the inertia of the counterweight 201, the trigger arm 202 of the triggering component 200 can swing around the rotating axis 203 using the inertia of the counterweight 201 and abut against the trigger end face 105 of the blocking component 104. Utilizing the inclined design of the trigger end face 105, the blocking component 104 is further driven to move, thereby separating from the limiting structure of the impact head 102.

[0037] Furthermore, in some embodiments, see Figure 1 , Figure 2 , Figure 3The base 101 is provided with a sleeve 106, and the impact head 102 is disposed inside the sleeve 106. The inner cavity of the sleeve 106 forms a guide path extending along the length direction of the impact head 102. The limiting structure includes a limiting protrusion 107 disposed on the side wall of the impact head 102. The blocking member 104 is disposed in a cap shape at the end of the sleeve 106. The blocking member 104 is provided with a through hole 108 through which the impact head 102 passes. The trigger end face 105 of the blocking member 104 extends obliquely in the circumferential direction outside the through hole 108. The blocking member 104 can rotate around the impact head 102 at the end of the sleeve 106. The blocking member 104 is provided with a notch 109 for releasing the limiting protrusion 107 in the hole wall of the through hole 108. Upon side impact, under the influence of the impact force and the inertia of the counterweight 201, the trigger arm 202 of the triggering component 200 can swing around the axis 203 using the inertia of the counterweight 201 and abut against the trigger end face 105 of the blocking component 104. Utilizing the inclined design of the trigger end face 105, the linear displacement of the trigger arm 202 is converted into the rotational kinetic energy of the blocking component 104. This further drives the blocking component 104 to rotate around the impact head 102 at the end of the sleeve 106. When the notch 109 of the blocking component 104 rotates to the position of the limiting protrusion 107 of the impact head 102, the constraint on the impact head 102 is released, and the energy storage component 103 instantly releases energy, driving the impact head 102 to rush outward along the guide path.

[0038] In this embodiment, the rotation of the counterweight 201 and the downward pressure of the blocking component 104 are synchronized, and the effect of the impact force is amplified by the mechanical linkage ratio to ensure that low-intensity collisions can still be triggered.

[0039] Further, see Figure 2 The blocking member 104 includes a sidewall portion 110 extending along the length of the sleeve 106 and a tail edge 111 extending radially inward from the sidewall portion 110. An annular groove 112 is provided on the outer circumferential surface of the sleeve 106, and the tail edge 111 is embedded in the annular groove 112. The blocking member 104 is connected to the sleeve 106 by the tail edge 111 being embedded in the annular groove 112, so that when the notch 109 is misaligned with the limiting protrusion 107, the impact head 102 can be confined to a non-impact position. When the blocking member 104 rotates, and when the notch 109 aligns with the limiting protrusion 107, the constraint on the impact head 102 is released.

[0040] Among them, see Figure 1 , Figure 2 , Figure 3 A first ball bearing 113 is provided between the tail edge 111 and the annular groove 112 to convert sliding friction into rolling friction. The first ball bearing 113 can significantly reduce the friction between the blocking component 104 and the base 101, and improve the sensitivity of the trigger component 200 to release the impact head 102 when a side collision occurs.

[0041] In addition, in some embodiments, the trigger arm 202 is provided with a second ball 114 at one end that mates with the trigger end face 105, which converts sliding friction into rolling friction. The second ball 114 can significantly reduce the friction between the trigger arm 202 and the trigger end face 105, thereby improving the sensitivity of the trigger component 200 in releasing the impact head 102 during a side impact.

[0042] In some embodiments, see Figure 2 , Figure 3 The energy storage component 103 provides the kinetic energy for the impact head 102 to propel outward. The energy storage component 103 includes a first elastic component disposed inside the sleeve 106. The first elastic component may be a spring or a sheet spring, etc. The energy storage component 103 may also be a cavity component filled with compressed gas.

[0043] In some embodiments, the base 101 is provided with a reverse limiting structure 115 for cooperating with the triggering member 200, and the rotating shaft 203 is provided with a second elastic member 116. The second elastic member 116 acts on the triggering member 200 so that the triggering member 200 abuts against the reverse limiting structure 115. Under normal conditions, the triggering member 200 is fixed by the preload of the second elastic member 116 to prevent false triggering. Upon collision, the energy is released due to the displacement of the counterweight 201, triggering rotation that overcomes the preload of the second elastic member 116.

[0044] By adjusting the mass of the counterweight 201 and the stiffness of the first and second elastic components, it can be adapted to the needs of different vehicle models, while also preventing accidental triggering.

[0045] An embodiment of this utility model also provides a vehicle door, including the window breaking device in any of the above embodiments. The window breaking device can be embedded in the inner cavity of the vehicle door and work in conjunction with the vehicle's safety system (such as side airbags) to form an integrated "collision protection-emergency escape" solution.

[0046] An embodiment of this utility model also provides an automobile, including the door of any of the above embodiments.

[0047] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A window breaking device, characterized in that, include: An impact assembly includes a base, an impact head, an energy storage component, and a blocking component. The impact head is disposed on the base, the energy storage component is disposed between the base and the impact head, the base has a guide path for guiding the impact head to impact outward, the impact head has a limiting structure, and the blocking component is disposed on the base. The blocking component cooperates with the limiting structure of the impact head and limits the impact head to a non-impact position. A triggering component is disposed on the base. The triggering component includes a counterweight. The triggering component can swing or move on the base by utilizing the inertia of the counterweight, thereby causing the blocking component to separate from the limiting structure of the impact head and releasing the impact head.

2. The window-breaking device according to claim 1, characterized in that, The triggering component includes a triggering arm extending to one side from the counterweight. The triggering component is mounted on the base via a pivot. The blocking component has a triggering end face. The triggering arm of the triggering component extends to the triggering end face. The triggering end face is an inclined surface that is tilted along the swing direction of the triggering arm. The triggering arm of the triggering component can swing around the pivot using the inertia of the counterweight and abut against the triggering end face of the blocking component, thereby causing the blocking component to separate from the limiting structure of the impact head and releasing the impact head.

3. The window-breaking device according to claim 2, characterized in that, The base is provided with a sleeve, and the impact head is disposed inside the sleeve. The inner cavity of the sleeve forms a guide path extending along the length direction of the impact head. The limiting structure includes a limiting protrusion disposed on the side wall of the impact head. The blocking member is disposed in a cap shape at the end of the sleeve. The blocking member has a through hole for the impact head to pass through. The trigger end face of the blocking member extends obliquely in the circumferential direction outside the through hole. The blocking member can rotate around the impact head at the end of the sleeve. The blocking member has a notch in the hole wall of the through hole to release the limiting protrusion.

4. The window-breaking device according to claim 3, characterized in that, The blocking component includes a sidewall portion extending along the length direction of the sleeve and a tail edge extending radially inward from the sidewall portion. The outer circumferential surface of the sleeve is provided with an annular groove, and the tail edge is embedded in the annular groove.

5. The window-breaking device according to claim 4, characterized in that, A first ball bearing is provided between the tail edge and the annular groove.

6. The window-breaking device according to claim 3, characterized in that, The energy storage component includes a first elastic component disposed inside the sleeve.

7. The window-breaking device according to claim 2, characterized in that, The trigger arm has a second ball bearing at one end that mates with the trigger end face.

8. The window-breaking device according to claim 2, characterized in that, The base is provided with a reverse limiting structure for cooperating with the triggering component, and the rotating shaft is provided with a second elastic component. The second elastic component acts on the triggering component so that the triggering component abuts against the reverse limiting structure.

9. A vehicle door, characterized in that, The window-breaking device includes any one of claims 1 to 8.

10. A car, characterized in that, Includes the vehicle door as described in claim 9.

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