A seatbelt cutter with window-breaking function

Abstract

This utility model discloses a seat belt cutter with a window-breaking function, relating to the technical field of seat belt cutters. It includes a housing assembly with a cutting component inside, and a window breaker body on one side of the housing assembly. The housing assembly includes an upper housing and a lower housing engaged with one side of the upper housing. A first slot is provided on one side of the upper housing, and a second slot is provided on one side of the lower housing. The first and second slots correspond to each other. The cutting component includes a cutting blade body slidably connected inside the lower housing. A second push block is provided on one side of the cutting blade body, and a first push block is provided on the other side. The internal cutting component facilitates the user's cutting of the seat belt body. Simultaneously, a window breaker is provided on one side of the cutter, allowing the user to break windows in emergency situations, thus enhancing the device's functionality.

Description

Technical Field

[0001] This utility model relates to the technical field of seat belt cutters, specifically a seat belt cutter with a window-breaking function. Background Technology

[0002] A seatbelt cutter is a safety tool designed specifically for emergencies. Its core function is to quickly cut a car's seatbelt, helping users escape from a trapped state when the seatbelt is jammed, deformed, or the person is injured and cannot unfasten it normally after a vehicle accident (such as a collision, rollover, or falling into water). It is an important component of in-vehicle emergency tools. The core value of a seatbelt cutter is emergency escape, mainly used in scenarios where conventional unlocking methods fail after a car accident. In such cases, we need a seatbelt cutter.

[0003] Based on this, a search on the patent website revealed that Chinese patent application number CN202510826948.0 discloses a seat belt cutter, including a fixing plate, which is fixed to the seat belt. The fixing plate has a blade sliding hole, which is directly opposite to the seat belt. Along the width direction of the seat belt, the length of the blade sliding hole is greater than the width of the seat belt. This invention is at least beneficial to improving the efficiency of cutting seat belts.

[0004] The above-mentioned devices have the following shortcomings when in use: traditional seat belt cutters have a simple structure and function, and only have the effect of cutting seat belts. The cutters are usually large in size and the blades are not easy to store, which makes them inconvenient for users to operate and reduces the practicality of the device.

[0005] To address the aforementioned issues, a seatbelt cutter with a window-breaking function is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a seat belt cutter with a window-breaking function. By using this device, the problems of traditional seat belt cutters in the background technology, such as simple structure and single function, only having the effect of cutting seat belts, large size and difficult-to-store blades, are not convenient for users to operate and reduce the practicality of the device are solved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a seat belt cutter with a window-breaking function, comprising a housing assembly, a cutting assembly disposed inside the housing assembly, and a window breaker body disposed on one side of the housing assembly; the housing assembly includes an upper housing and a lower housing engaged with one side of the upper housing, a first slot disposed on one side of the upper housing, and a second slot disposed on one side of the lower housing, the first slot and the second slot being corresponding to each other; the cutting assembly includes a cutting blade body slidably connected inside the lower housing, a second push block disposed on one side of the cutting blade body, a first push block disposed on the other side of the cutting blade body, a cutting head fixedly connected to one side of the cutting blade body, the cutting head being used to cut the seat belt, and a limiting component disposed on one side of the cutting blade body, the limiting component limiting the position of the cutting blade body.

[0008] Preferably, the first slot and the second slot are used for the seat belt to pass through, and the lower housing is provided with a positioning component, and two sets of the positioning component are provided.

[0009] The above-mentioned structural design, through the first and second slots corresponding to the upper and lower shells, forms a dedicated passage for the seat belt, ensuring that the seat belt can quickly and accurately engage with the cutting area in an emergency, avoiding delays in cutting due to inaccurate positioning.

[0010] Preferably, the two sets of positioning components are used to assist in positioning the seat belt. Each positioning component includes a second spring fixedly connected inside the lower housing. One end of the second spring is fixedly connected to a connecting block, and the connecting block is in contact with the seat belt.

[0011] The design of the above structure utilizes the elastic deformation characteristics of spring two to enable the connecting block to have "adaptive clamping" capability: when the seat belt is inserted, the connecting block is compressed by the webbing and compresses spring two. At the same time, the reaction force of spring two pushes the connecting block to fit tightly against the surface of the seat belt, which can adapt to seat belt webbing of different thicknesses and provide stable clamping force.

[0012] Preferably, a spring is fixedly connected inside the blade body, and a limiting ball is fixedly connected to one end of the spring, with the limiting ball movably disposed on one side of the blade body.

[0013] The above-mentioned structure is designed so that spring one and the limiting ball form an "elastic limiting unit". The elastic force of spring one always pushes the limiting ball outward of the cutter body, so that the limiting ball has a pre-tightening force to cooperate with the external groove. At the same time, the movable design of the limiting ball allows it to extend and retract slightly along the side of the cutter body.

[0014] Preferably, the lower housing is provided with a first limiting arc groove and a second limiting arc groove, and the limiting ball is matched with the first limiting arc groove and the second limiting arc groove respectively.

[0015] The design of the above structure precisely defines the "storage position" and "working position" of the cutter assembly through two arc-shaped grooves that fit the limiting balls: the first limiting arc-shaped groove corresponds to the cutter storage state, and the second limiting arc-shaped groove corresponds to the cutter working state; the curved surface design of the arc-shaped groove perfectly matches the spherical structure of the limiting balls.

[0016] Preferably, when the second pusher is pushed into the lower housing, the cutting head moves to the inner cavity of the second slot; when the cutting head is pushed into the lower housing, the cutting head moves into the lower housing.

[0017] The above-described structure design realizes the mechanical transmission logic of "push-linkage" for the cutter assembly: by rigidly connecting the second pusher block to the cutter blade body, the user's action of pushing the pusher block can be directly converted into the sliding power of the cutter blade body, without the need for additional transmission components, which simplifies the structure and improves the operation response speed.

[0018] Preferably, when the cutting head moves to the inner cavity of the second slot, the cutting head starts the cutting mode, which can cut the seat belt; when the cutting head moves to the inside of the lower housing, the cutting head stops the cutting mode.

[0019] The above-mentioned structure design directly defines the working mode by changing the position of the cutting head, realizing the functional logic of "mechanical positioning as mode switching": when the cutting head extends to the second slot (i.e., the seat belt insertion position), it automatically enters the working mode without the need for additional unlocking or starting steps.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This application discloses a seat belt cutter with a window-breaking function. The internal cutting component facilitates the user to cut the seat belt body. At the same time, a window breaker is also provided on one side of the cutter, which makes it convenient for the user to use the device to break the window in an emergency, thereby improving the functionality of the device.

[0022] 2. When not in use, the seat belt cutter of this application can be installed on one side of the end of the seat belt, with the cutting blade stored inside the cutter housing. When needed, the user can easily remove the cutting blade from the housing, improving the practicality of the device.

[0023] 3. The seat belt cutter is equipped with a limiting mechanism inside. When the user moves the cutting blade, the limiting mechanism can assist in positioning the cutting blade to prevent the cutting blade from shifting and improve the performance of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a structural diagram of the seat belt cutter in the open state.

[0026] Figure 3 This is a structural diagram of the cutter in the closed state of the seat belt cutter of this utility model;

[0027] Figure 4 This is a disassembled structural diagram of the internal components of the seat belt cutter of this utility model.

[0028] In the diagram: 1. Outer shell assembly; 2. Cutter assembly; 3. Window breaker body; 111. First slot; 11. Upper shell; 12. Lower shell; 121. Second slot; 122. First limiting arc groove; 123. Second limiting arc groove; 21. Cutter blade body; 22. First push block; 23. Second push block; 24. Cutting head; 25. Limiting ball; 26. Positioning component; 251. Spring 1. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0031] Combination Figures 1-4A seatbelt cutter with window-breaking function includes a housing assembly 1, a cutting blade assembly 2 disposed inside the housing assembly 1, and a window breaker body 3 disposed on one side of the housing assembly 1. The housing assembly 1 includes an upper housing 11 and a lower housing 12 engaged with one side of the upper housing 11. A first slot 111 is provided on one side of the upper housing 11, and a second slot 121 is provided on one side of the lower housing 12. The first slot 111 and the second slot 121 are positioned corresponding to each other. The cutting blade assembly 2 includes a cutting blade body 21 slidably connected inside the lower housing 12. A second push block 23 is provided on one side of the cutting blade body 21, and a first push block 22 is provided on the other side of the cutting blade body 21. A cutting head 24 is fixedly connected to one side of the cutting blade body 21 for cutting seatbelts. A limiting component is provided on one side of the cutting blade body 21 to limit the position of the cutting blade body 21.

[0032] The present invention will be further described below with reference to the embodiments. Example:

[0033] The first slot 111 and the second slot 121 are used for the seat belt to pass through. The lower housing 12 is provided with a positioning component 26, and there are two sets of positioning components 26.

[0034] Two sets of positioning components 26 are used to assist in positioning the seat belt. Each positioning component 26 includes a spring 2 fixedly connected inside the lower housing 12. One end of the spring 2 is fixedly connected to a connecting block, and the connecting block is in contact with the seat belt.

[0035] A spring 251 is fixedly connected inside the blade body 21. One end of the spring 251 is fixedly connected to a limit ball 25, which is movably disposed on one side of the blade body 21.

[0036] The lower housing 12 is provided with a first limiting arc groove 122 and a second limiting arc groove 123, and the limiting ball 25 is matched with the first limiting arc groove 122 and the second limiting arc groove 123 respectively.

[0037] When the second pusher 23 is pushed into the lower housing 12, the cutting head 24 moves into the inner cavity of the second slot 121; when the cutting head 24 is pushed into the lower housing 12, the cutting head 24 moves into the lower housing 12.

[0038] When the cutting head 24 moves into the inner cavity of the second slot 121, the cutting head 24 starts the cutting mode, which can cut the seat belt; when the cutting head 24 moves into the lower housing 12, the cutting head 24 stops the cutting mode.

[0039] In summary, the working principle is as follows: In the initial state of the device, the outer shell assembly 1 serves as the basic carrier, consisting of an upper shell 11 and a lower shell 12 connected by a snap-fit ​​mechanism. After the two are joined together, they form an internal cavity to accommodate the cutter assembly 2. At the same time, the first slot 111 of the upper shell 11 and the second slot 121 of the lower shell 12 correspond to each other, together forming the "entry channel" for the seat belt, which facilitates the quick insertion of the seat belt into the device in an emergency.

[0040] The cutter assembly 2 is in a hidden storage state: the cutter blade body 21 is slidably connected to the inside of the lower housing 12, and the cutting head 24 at one end is not inserted into the inner cavity of the second slot 121 to avoid accidental daily contact; the first push block 22 and the second push block 23 on both sides of the cutter blade body 21 are partially exposed in the outer shell for manual triggering by the user; the internal limiting ball 25 is pressed by the elastic force of the spring 251 and engages with the first limiting arc groove 122 of the lower housing 12 to fix the initial position of the cutter assembly 2 and prevent accidental sliding;

[0041] The auxiliary positioning component 26 is always in a pre-compression standby state: the two sets of positioning components 26 have built-in springs, and the connecting blocks at their ends maintain an outward pushing tendency due to the spring force. When the safety belt passes through the first slot 111 and the second slot 121, the two sets of connecting blocks will clamp the safety belt from both sides to prevent the safety belt from shifting during the cutting process and ensure that the cutting head 24 can accurately act on the webbing.

[0042] The window breaker body 3 is fixed to one side of the outer shell component 1. The device adopts a ready-to-use design and does not require additional unlocking. In an emergency, you can directly hold the outer shell and aim it at the weak part of the car window to break the glass by using its hardness. It is an independent emergency function module and is not linked with the cutter component 2. It can be called independently.

[0043] When a vehicle accident occurs and the seatbelt needs to be cut to escape, the user pushes the second push block 23 into the housing. The pushing force overcomes the sliding friction between the cutter body 21 and the lower housing 12, causing the cutter body 21 to move along the slide rail inside the lower housing 12. During this process, the cutter body 21 simultaneously drives the cutting head 24 to move towards the second slot 121. As the cutter body 21 moves, the compression spring 251 temporarily contracts. When the cutting head 24 is fully inserted into the inner cavity of the second slot 121, the cutting head 24 contacts the seatbelt that has entered the slot, and the limiting ball 25 moves to the position of the second limiting arc groove 123 of the lower housing 12. The spring 251 returns to its original deformation, pushing the limiting ball 25 into the second limiting arc groove 123, thereby locking the position of the cutter assembly 2 and preventing the cutting head 24 from shaking during cutting.

[0044] The safety belt, inserted into the first slot 111 and the second slot 121, is clamped by the connecting blocks of the two sets of positioning components 26 through the elastic force of spring two, restricting its lateral displacement; at this time, the user only needs to maintain the pushing force or slightly move the device, and the cutting head 24 can cut the fixed safety belt webbing with the help of the external force applied by the user. Because the cutting head 24 is designed with high hardness and the safety belt is accurately positioned, the webbing can be cut quickly to complete the escape operation;

[0045] After cutting, the device can be manually restored to its initial storage state for easy reuse. Specifically, the user pushes the first push block 22 in the opposite direction, causing the cutter body 21 to slide in the opposite direction along the slide of the lower housing 12. The cutter head 24 gradually exits the inner cavity of the second slot 121 and leaves the cutting area. The limiting ball 25 moves with the cutter body 21 and is squeezed again by the inner wall of the second limiting arc groove 123. After compressing the spring 251, it leaves the slot. When it continues to slide to the initial position, the limiting ball 25 aligns with the first limiting arc groove 122. The spring 251 is released, pushing the limiting ball 25 into the first limiting arc groove 122 and relocking the storage position of the cutter body 21. At this time, the cutter head 24 is completely hidden inside the lower housing 12 and returns to a safe standby state.

[0046] The window-breaking function is independent of the cutting function and does not rely on other components for linkage. The window breaker body 3 is made of a high-hardness material, which is much harder than car window glass. When the vehicle falls into water or is deformed and the window needs to be broken for escape, the user can directly hold the outer shell component 1, aim the tip of the window breaker body 3 at the corner of the window, and apply impact force with the arm. The tip of the window breaker will instantly concentrate the impact force on the local area of ​​the glass, break through the structural strength of the glass, and achieve the effect of breaking the glass, thus opening a passage for escape.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seat belt cutter with a break window function, comprising a housing assembly (1), characterized in that: The outer casing assembly (1) is internally provided with a cutter assembly (2), and a window breaker body (3) is provided on one side of the outer casing assembly (1); the outer casing assembly (1) includes an upper shell (11) and a lower shell (12) snapped onto one side of the upper shell (11), a first slot (111) is provided on one side of the upper shell (11), and a second slot (121) is provided on one side of the lower shell (12), the first slot (111) and the second slot (121) are positioned corresponding to each other, and the cutter assembly ( 2) Includes a cutting blade body (21) slidably connected inside the lower housing (12). A second push block (23) is provided on one side of the cutting blade body (21), and a first push block (22) is provided on the other side of the cutting blade body (21). A cutting head (24) is fixedly connected to one side of the cutting blade body (21). The cutting head (24) is used to cut the seat belt. A limiting component is provided on one side of the cutting blade body (21). The limiting component limits the position of the cutting blade body (21).

2. The seat belt cutter with window breaking function according to claim 1, characterized in that: The first slot (111) and the second slot (121) are used for the seat belt to pass through. The lower housing (12) is provided with a positioning component (26), and the positioning component (26) is provided in two sets.

3. The seat belt cutter with window breaking function according to claim 2, characterized in that: The two sets of positioning components (26) are used to assist in positioning the seat belt. The positioning component (26) includes a second spring that is fixedly connected to the inside of the lower housing (12). One end of the second spring is fixedly connected to a connecting block, and the connecting block is in contact with the seat belt.

4. The seat belt cutter with window breaking function according to claim 3, characterized in that: A spring (251) is fixedly connected inside the blade body (21). One end of the spring (251) is fixedly connected to a limiting ball (25), which is movably disposed on one side of the blade body (21).

5. A seatbelt cutter with window-breaking function according to claim 4, characterized in that: The lower housing (12) is provided with a first limiting arc groove (122) and a second limiting arc groove (123), and the limiting ball (25) is matched with the first limiting arc groove (122) and the second limiting arc groove (123) respectively.

6. A seatbelt cutter with window-breaking function according to claim 5, characterized in that: When the second pusher (23) is pushed into the lower housing (12), the cutting head (24) moves into the inner cavity of the second slot (121); when the cutting head (24) is pushed into the lower housing (12), the cutting head (24) moves into the lower housing (12).

7. A seatbelt cutter with window-breaking function according to claim 6, characterized in that: When the cutting head (24) moves into the inner cavity of the second slot (121), the cutting head (24) starts the cutting mode, which can cut the seat belt; when the cutting head (24) moves into the inner cavity of the lower housing (12), the cutting head (24) stops the cutting mode.

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