Safety belt cutter

Abstract

The utility model relates to the field of vehicle accessories, and provides a safety belt cutter which comprises a shell and a cutting mechanism, and an opening is formed in one side of the shell; the cutting mechanism comprises a rack, a cutter, a duplicate gear and a driving plate which is meshed with the duplicate gear and synchronously drives the rack to move in the opening direction. A gear shaft of the duplicate gear is rotationally arranged on the shell; the moving stroke of the cutter is larger than the width of the safety belt. And an opening for placing the safety belt is designed on the shell. When the safety belt is cut off, the safety belt is placed in the opening, then the duplicate gear is driven to rotate through the driving plate, the rack is driven to move along the opening, meanwhile, the cutter is driven to move in the opening, and then the safety belt is cut off. The safety belt clamped in the shell can be rapidly cut off, operation can be conducted with one hand, the purpose of rapidly cutting off the safety belt is achieved, and cutting operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of vehicle accessories, in particular to a safety belt cutter. Background Art

[0002] In vehicles, seat belts are one of the safety protection devices for passengers and drivers, and can play an important protective role. However, when a car is involved in a traffic accident, although the seat belt can save a life in a critical moment, the injuries caused by the accident may also damage the seat belt buckle, making it impossible to open the seat belt, causing the driver and passengers in the car to be unable to escape in time. In this case, in the absence of external rescue, they can only rely on self-rescue.

[0003] The material strength of seat belts is relatively high, so it is difficult to cut the seat belts quickly with an ordinary knife. This affects the precious time to escape from the vehicle in the first place, and poses a certain safety hazard to the lives of people in the vehicle. Utility Model Content

[0004] The utility model aims to provide a seat belt cutter, aiming to improve the problems that the seat belts of existing vehicles cannot be unlocked during a car accident and the cutting of the seat belts is not convenient or fast enough.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a seat belt cutter, comprising:

[0006] A housing having an opening on one side thereof for the safety belt to pass through; and

[0007] The cutting mechanism comprises a rack arranged in the housing parallel to the opening, a cutter located at one end of the rack and with a blade facing the opening, a double gear meshed with the rack, and a driving plate meshed with the double gear and synchronously driving the rack to move along the opening direction; the gear shaft of the double gear is rotatably arranged on the housing;

[0008] The travel of the cutter is greater than the width of the safety belt.

[0009] Preferably, the double gear includes a large gear meshing with the rack and a small gear meshing with the drive plate, and the diameter of the large gear is greater than the diameter of the small gear.

[0010] Preferably, a return spring is arranged between the end of the rack facing the opening and the side wall of the shell.

[0011] Preferably, one end face of the drive plate is provided with arcuate teeth meshing with the double gear, the other end axis of the drive plate is hingedly provided on the shell, and the middle part of the drive plate and / or the end part with the arcuate teeth is provided with a pressing part protruding from the outside of the shell.

[0012] Preferably, the shell is provided with a slot for placing a safety belt in the opening.

[0013] Preferably, the opening port is an oblique port or a bell-shaped port.

[0014] Preferably, the cutter is provided with a blade with a "V"-shaped notch.

[0015] Preferably, the shell is a long strip structure, and the shell is provided with a concave arc surface for gripping in the area corresponding to the driving plate.

[0016] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0017] 1. An opening is designed on the shell for the safety belt to be placed in. When cutting the safety belt, the safety belt is placed in the opening, and then the driving plate drives the double gear to rotate, drives the rack to move along the opening, and drives the cutter to move in the opening, and then cuts the safety belt. The safety belt inserted into the shell can be cut quickly, and can be operated with one hand, so as to achieve the purpose of quickly cutting the safety belt, and the cutting operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the safety belt cutter of the utility model;

[0019] Figure 2 It is a cross-sectional view of the safety belt cutter described in the utility model.

[0020] Description of reference numerals:

[0021] 10. housing; 101. opening; 102. slot; 103. oblique opening; 104. concave arc surface;

[0022] 20. Cutting mechanism; 201. Rack; 202. Cutter; 203. Double gear; 204. Drive plate;

[0023] 2021, "V"-shaped notched blade;

[0024] 2031, large gear; 2032, small gear;

[0025] 2041, arc surface teeth; 2042, pressing part;

[0026] 30. Return spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0031] Example

[0032] Please refer to Figure 1 and Figure 2 As shown, the present embodiment provides a seat belt cutter, comprising a housing 10 and a cutting mechanism 20, wherein an opening 101 for the seat belt to pass through is provided on one side of the housing 10; the cutting mechanism 20 comprises a rack 201 arranged in the housing 10 parallel to the opening 101, a cutter 202 located at one end of the rack 201 and with a blade facing the opening 101, a double gear 203 meshing with the rack 201, and a driving plate 204 meshing with the double gear 203 and synchronously driving the rack 201 to move along the direction of the opening 101; the gear shaft of the double gear 203 is rotatably provided on the housing 10; the moving stroke of the cutter 202 is greater than the width of the seat belt.

[0033] In this embodiment, the blade of the cutter 202 is facing the opening 101, so when driven by the rack 201, it will cut along the opening 101 and cut the safety belt placed in the opening 101. Specifically, the driving plate 204 drives the double gear 203 to rotate, and then drives the rack 201 to slide (the double gear 203 has two teeth, one meshing with the driving plate 204, and the other meshing with the rack 201, forming a power transmission), so that the cutter 202 moves in the opening 101 and cuts the safety belt, thereby achieving the purpose of quickly cutting the safety belt. And the operation only needs to drive the driving plate 204, which is simple and convenient.

[0034] Furthermore, if Figure 2 As shown, in this embodiment, an arcuate tooth 2041 meshing with the double gear 203 is provided on one end face of the driving plate 204, and the other end axis of the driving plate 204 is hingedly provided on the shell 10, and a pressing portion 2042 protruding from the outside of the shell 10 is provided in the middle part of the driving plate 204 and / or the end part with the arcuate tooth 2041.

[0035] Specifically, by pressing or holding the pressing portion 2042, the arcuate teeth 2041 of the driving plate 204 drive the double gear 203 to rotate, and then drive the rack 201 to move toward the opening 101, and the cutter 202 moves and cuts in the opening 101, thereby achieving an effect of convenient operation.

[0036] like Figure 2 As shown, in this embodiment, the double gear 203 includes a large gear 2031 meshing with the rack 201 and a small gear 2032 meshing with the drive plate 204, and the diameter of the large gear 2031 is larger than the diameter of the small gear 2032. The design of the large and small gears 2032 allows the large gear 2031 to drive the rack 201 with a larger stroke when the small gear 2032 is driven by the drive plate 204. The housing 10 designed in this way has a more compact structure as a whole, is easier to hold or carry, and is more practical.

[0037] like Figure 2 As shown, in this embodiment, a reset spring 30 is arranged between the end of the rack 201 facing the opening 101 and the side wall of the housing 10. The installation of the reset spring 30 can provide a reverse reset force when the driving plate 204 and the double gear 203 move in the opposite direction (positive movement is the driving plate 204 driving the cutter 202 to cut the safety belt, and this process continuously squeezes the reset spring 30). After the driving plate 204 is released, it is reset by the elastic force of the reset spring 30 so that it can be pressed again to cut, forming the purpose of cutting the safety belt in multiple actions, so that the safety belt can be cut quickly and multiple times, improving practicality.

[0038] like Figure 2As shown, in this embodiment, the shell 10 is provided with a slot 102 for placing the safety belt in the opening 101. When the safety belt is placed in the opening 101, it can also be limited by the slot 102. In this way, when the safety belt is cut, a blocking effect can be formed, and the safety belt can be safely separated from the opening 101, thereby achieving the purpose of effectively cutting the safety belt.

[0039] like Figure 1 As shown, in this embodiment, the end of the opening 101 is an oblique opening 103 or a bell-shaped opening. Setting one side of the opening 101 as an inclined opening 103 or two sides as a bell-shaped opening with inclined surfaces can facilitate the placement of the safety belt into the opening 101 and improve the convenience of use.

[0040] like Figure 2 As shown, in this embodiment, the cutter 202 is provided with a blade 2021 with a "V"-shaped notch. The notched blade design can provide a self-limiting effect during cutting, that is, the safety belt will be located in the blade, and the up and down floating deflection will be cut and limited by the blade, thus improving the smoothness of cutting. The blade notch can be a "V"-shaped notch, a "U"-shaped notch or a square notch, etc., preferably a "V"-shaped notch, and a gradually decreasing notch can form a more effective cutting.

[0041] like Figure 1 As shown, in this embodiment, the housing 10 is a long strip structure, and the housing 10 is provided with a concave arc surface 104 for gripping in the area corresponding to the driving plate 204. Because the driving plate 204 protrudes from the housing 10, a pressing portion 2042 is formed for pressing and driving the driving plate 204. In this way, the concave arc surface is designed at the position of the housing 10 corresponding to the pressing portion 2042, so that when pressing the pressing portion 2042, it is easy to grip, and it is not easy to slip out of the seat belt cutter, thereby improving the practicality of use.

[0042] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A seat belt cutter, characterized in that: include: A housing, one side of which is provided with an opening for the safety belt to pass through; and The cutting mechanism comprises a rack arranged in the housing parallel to the opening, a cutter located at one end of the rack and with a blade facing the opening, a double gear meshed with the rack, and a driving plate meshed with the double gear and synchronously driving the rack to move along the opening direction; the gear shaft of the double gear is rotatably arranged on the housing; The travel of the cutter is greater than the width of the safety belt.

2. The seat belt cutter according to claim 1, characterized in that: The double gear includes a large gear meshed with the rack and a small gear meshed with the driving plate, and the diameter of the large gear is greater than the diameter of the small gear.

3. The seat belt cutter according to claim 1, characterized in that: A return spring is arranged between one end of the rack facing the opening and the side wall of the shell.

4. The seat belt cutter according to claim 1, characterized in that: An arcuate tooth meshing with the double gear is arranged on one end face of the driving plate, and the other end shaft of the driving plate is hingedly arranged on the shell, and a pressing portion protruding from the shell is arranged in the middle part of the driving plate and / or the end part with the arcuate tooth.

5. The seat belt cutter according to claim 1, characterized in that: The shell is provided with a slot for placing a safety belt in the opening.

6. The seat belt cutter according to claim 1 or 5, characterized in that: The opening is an oblique opening or a bell-shaped opening.

7. The seat belt cutter according to claim 1 or 5, characterized in that: The cutter is provided with a blade with a "V"-shaped notch.

8. The seat belt cutter according to claim 1 or 4, characterized in that: The shell is a long strip structure, and the shell is provided with a concave arc surface for gripping in the area corresponding to the driving plate.

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