window breaker

Abstract

The application discloses a window breaker, which realizes force accumulation through two groups of rack gears, and specifically, when one group of racks moves in one direction, based on the characteristics of rack gear cooperation, the other group of racks must move in the opposite direction, and since the two groups of racks move towards each other or move away from each other, the window breaker has a relatively small axial size (specifically, the size of the punch movement direction), and the size is relatively compact.

Description

TECHNICAL FIELD

[0001] The present application relates to a window breaker. BACKGROUND

[0002] The most common window breaker is a car window breaker, which is well known to the public that the car window breaker is usually placed in a predetermined position of the car window, and when the window needs to be broken, the relevant personnel takes down the car window breaker and hits the predetermined position of the window glass to make the whole window glass fall off. Correspondingly, the car window breaker is usually attached with a window breaking instruction to indicate the window breaking position and method.

[0003] When using the car window breaker to break the window, in order to make the hammer body obtain a larger kinetic energy, the user needs to swing the arm to make the car window breaker have the required kinetic energy. Since the swing usually has a relatively large amplitude, it is very easy to cause the flying of the glass debris when hitting the predetermined position of the window glass, which is easy to injure the user or others.

[0004] The above-mentioned problems of using the car window breaker are well known to those skilled in the art, and therefore the patent document CN217477247U proposes a window breaker, the design purpose of which is to avoid or reduce personnel injury by not requiring a swinging space and being convenient to use. The car window breaker disclosed in the patent document comprises a main shell body and a striker, as well as a protective cover, a return spring and an energy storage spring. The middle part of the striker is provided with a clamping protrusion, the head part of the main shell body is provided with a containing cavity for the extension and retraction action of the striker, the tail part of the striker extends into the containing cavity, the middle part is provided with the clamping protrusion, and the head part extends out of the containing cavity. The energy storage spring is sleeved on the tail part of the striker and presses on the clamping protrusion, the return spring is sleeved on the head part of the striker, the protective cover is sleeved with the main shell body and can cover the head part of the striker in a natural state, and the protective cover is provided with a clamping jaw for releasing the clamping protrusion after compressing the energy storage spring to the required deformation energy. The overall length is affected by the installation mode of the striker, i.e. the striker is installed in the main shell body, and the spring is arranged in the axial direction of the shell body, so that the overall length is relatively long and the space requirement is relatively high.

[0005] Given the relatively large axial dimension of the window breaker proposed in Chinese patent document CN217477247U, Chinese patent document CN115092086A proposes a more compact and smaller vehicle-mounted window breaker. This vehicle-mounted window breaker includes a bracket with a central hole containing a bullet-shaped device. The bullet-shaped device is fitted with a spring, and one end of the spring has a limiting structure, while the other end of the spring is supported at a predetermined position on the bracket. A rotatable cam is located at the rear end of the bracket, and the front end of the cam has a driving ramp, essentially acting as an end-face cam. Its compact structure relies on the fact that most of the bullet-shaped device is encased within the spring, and then the entire device fits into the circular hole of the bracket. Power comes from a cable wound around the cam; pulling the cable rotates the cam, causing the position of the ramp on the cam to change. The changed position of the ramp pushes a pin, causing axial movement, and the pin slides down at the highest point of the ramp, releasing the bullet-shaped device. The bullet-shaped device is then ejected under the force of the spring. It should be noted that cam mechanisms are high-pair mechanisms. The pins with large axial forces have relatively high friction with the cam, resulting in relatively low smooth operation. Furthermore, the cable needs to be rewound after it is fully extended, which is inconvenient to use. Summary of the Invention

[0006] The purpose of this invention is to provide a window breaker that is easy to use and has a relatively compact structure.

[0007] In an embodiment of the present invention, a window breaker is provided, comprising:

[0008] Mounting plate;

[0009] The seat is hinged to the mounting plate via a hinge shaft, and thus has the freedom to rotate about the axis of the hinge shaft.

[0010] The housing is mounted on the seat. When the seat rotates to a predetermined angle, one side of the housing faces the vehicle window. This side is called the working surface. An extension hole is opened on the working surface. An access hole is opened on a side of the housing that is perpendicular to the working surface, and a power hole is opened on a side that is parallel to the working surface.

[0011] The punch has its main body inside the housing, with one end protruding from the protrusion hole.

[0012] The gear set is located inside the housing and includes two sets of racks arranged in parallel, and a gear for transmission between the two sets of racks. One set of racks constitutes a driven rack, which is fixedly connected to the punch and has a stopper at its tail end. The other set of racks constitutes a driving rack.

[0013] A power storage component, located inside the housing and acting on the driven rack or punch, provides impact force in the direction of the punch's impact.

[0014] A push rod, fixedly connected to the active rack, protrudes from the power hole; and

[0015] A locking catch is arranged in the housing to lock the die when it reaches a predetermined position, the locking catch comprising a button for controlling the locking catch to unlock the die, the button protruding from the intervention hole.

[0016] Optionally, each rack includes two racks;

[0017] Correspondingly, the punch is fixed between the two driven racks.

[0018] Optionally, the two driven racks are guided by a guide frame fixed on the seat or the housing;

[0019] A moving pair is formed between the driven rack and the guide frame, a ball is arranged on the interface of the moving pair or a roller is arranged on one component of the moving pair.

[0020] Optionally, the force storage component is a spring assembly corresponding to the driven rack and comprising a spring guide column;

[0021] Correspondingly, the die is a block arranged on the upper side of the tail end of the punch;

[0022] Correspondingly, the locking catch comprises a hook head, one side of the hook head is a bevel or arc surface to form a wedge mechanism with the die to push the hook head upward until the die is constrained by the falling hook head after passing the hook head;

[0023] Correspondingly, the hook head has a reset force opposite to the driving direction of the wedge mechanism, and the button is used to hold up the hook head against the reset force.

[0024] Optionally, the hook head is included in a lever mechanism arranged on one end of the corresponding lever, and the other end of the lever is adapted with the button;

[0025] Correspondingly, the lever is provided with a torsion spring at the corresponding hinge support or a reset spring on the button side to provide the reset force.

[0026] Optionally, the main body of the button is a vertical rod, and the lower end of the vertical rod is hinged to the other end of the lever;

[0027] The intervention hole is a vertical hole, and an active gap is left between the vertical hole and the vertical rod.

[0028] Optionally, the driving rack has two driving racks, and the two driving racks are connected by a connecting plate at the driving end to form a double connecting rack.

[0029] The push rod is fixedly connected with the connecting plate.

[0030] Optionally, the side of the driving rack away from the driven rack is guided by a guide rail or a guide groove formed on a plate body, and the plate body is included in the seat or fixed on the seat to form a guide plate.

[0031] Optionally, the working surface is provided with suction cups, and the number of the suction cups is 2-4.

[0032] Optionally, the seat is an L-shaped seat, and the L-shaped seat and the shell form an oblong box structure.

[0033] The hinge between the seat and the mounting plate is a composite hinge, which is composed of a pair of hinge shafts.

[0034] Correspondingly, the seat and the mounting plate have an intermediate member, which is hingedly connected to the seat through a first hinge shaft and is hingedly connected to the mounting plate through a second hinge shaft.

[0035] The first hinge shaft and the second hinge shaft are perpendicular to each other.

[0036] In the embodiment of the application, the force is accumulated by two sets of rack gears, specifically, when one set of rack gears moves in one direction, the other set of rack gears must move in the opposite direction based on the characteristics of the rack gear cooperation, and since the two sets of rack gears move towards each other or away from each other, the window breaker can have a relatively small axial size (specifically, the size of the punch movement direction), and the size is relatively compact. At the same time, since the transmission ratio does not need to be considered, the individual rack gears and rack gears can be relatively small, and the overall size will not increase due to the use of gears for intermediate transmission, so the overall size is still relatively compact. From the implementation point of view, the push rod is pushed, the driving rack moves forward, the driven rack is driven by the gear to move the punch backward, until the lock catch position, the gear set or the stopper installed on the punch is locked by the lock catch, the force is accumulated, the button is pressed, the lock catch releases the stopper, the punch moves forward, and the overall operation is relatively simple, without the need for a complex learning process, and it is convenient and direct to use. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the window breaker in an embodiment.

[0038] Figure 2 It is a schematic diagram of the left view structure of the window breaker in an embodiment.

[0039] Figure 3 It is a schematic diagram of the internal structure of the window breaker in an embodiment.

[0040] Figure 4 It is a schematic diagram of the control bin configuration structure in an embodiment.

[0041] Fig. 1: 1. seat, 2. suction cup, 3. punch, 4. housing, 5. hinge shaft, 6. fixed plate, 7. fixed hole, 8. screw, 9. button, 10. screw hole, 11. guide plate, 12. driving rack, 13. gear, 14. gear shaft, 15. driven rack, 16. roller, 17. connecting plate, 18. push rod, 19. sub, 20 control compartment, 21. via, 22. hook, 23. compartment cover, 24. hinge shaft, 25. hinge shaft, 26. vertical hole. DETAILED DESCRIPTION

[0042] Figure 1 、 2 In the example structure, the housing 4 is a rectangular housing, and accordingly has six faces, wherein the seat 1 is L-shaped, and together with the housing 4 forms a rectangular box structure. In use, the face of the punch 3 that protrudes is referred to as the working face, and four suction cups 2 are provided on the working face to ensure stability during force storage and impact, and the punch 3 is substantially perpendicular to the glass face during impact.

[0043] It should be understood that the drawings of the embodiments of the present application are enlarged in size to facilitate the presentation of product details. It should be understood that the thickness direction determined by the face plate side of the rectangular box structure of the fixed plate 6 can be relatively thin, without affecting the assembly of the driving rack 12, for example. As mentioned above, the driving of the punch 3 itself does not require a gear and rack mechanism with high strength. In the mechanical field, the gear and rack transmission has relatively strong capability, and does not need to have relatively high strength itself, so that only a small size specification can meet the driving requirements of the punch 3, thereby making the window breaker of the embodiments of the present application have a relatively compact structure.

[0044] In addition, it should be understood that for the moving parts, the direction of movement during work is forward, in other words, the aforementioned working face can be defined as the outer surface of the front panel, and the direction of the punch is forward, and the reverse direction is backward, and the direction perpendicular to the forward and backward directions in the horizontal plane is usually referred to as the width direction. The direction perpendicular to the plane determined by the front, back, left and right is the height direction, which is also the vertical direction, the up and down direction.

[0045] Figure 1 In the example structure, the seat 1 and the fixed plate 6 can be a component, wherein the fixed plate 6 is used as a mounting plate for mounting the window breaker on the window frame of a vehicle window, for example. Figure 1 In the example structure, the fixed plate 6 has a fixed hole 7, which can be fixed to the window frame using a screw, for example.

[0046] In addition, the fixed plate 6 and the housing 4 can be an assembly to jointly build the aforementioned rectangular box structure.

[0047] It is known that the window breaker itself has a relatively small weight, even if it is a hammer, the weight is usually less than 300g, so the fixing requirement for the fixed plate 6 is relatively low, even if there are only two fixing holes 7, two screws can be used for reliable fixing.

[0048] As mentioned above, the fixed plate 6 is connected with the seat 1 through a hinge, Figure 1 In the example structure, the hinge used is commonly known as a hinge, and the specification name is a side hinge. The structure shown in the figure is a composite hinge, which includes two hinge shafts, and the two hinge shafts are perpendicular to each other, which is beneficial to adjust the initial state of the window breaker, which is different from Figure 1 The working surface faces the vehicle window glass in the state.

[0049] The seat 1 is a mounting base for other functional components of the window breaker, which is hinged to the fixed plate 6 through the hinge shaft as described above, so that the shell 4 has the freedom to swing around the corresponding hinge shaft. The shell 4 is mounted on the seat 1, and the shell 4 can be adjusted, that is, adjusted by means of the aforementioned swing, assuming that the swing range is 90 degrees, then in the working state, the working surface is parallel to the vehicle window glass, and then in the non-working state, it is perpendicular to the vehicle window glass.

[0050] In the non-working state, the shell 4 can be simply fixed, for example, using a rubber ring to enclose the assembly formed by the shell 4 and the fixed plate 6.

[0051] Figure 3 In the example, the side surface of the seat 1 is provided with a screw hole 10, and the lower opening of the shell 4 can be sleeved on the seat 1, and then fixed by using a screw.

[0052] In some embodiments, the upper surface of the seat 1 can be provided with a convex portion on the side, and the screw hole 10 is opened on the convex portion, at this time the shell 4 does not need to be sleeved on the seat 1, which is beneficial to positioning, that is, the lower end of the shell 4 is supported on the upper surface of the seat 1.

[0053] As mentioned above, the shell 4 is mounted on the seat 1, so that when the shell 4 rotates with the seat 1 by a predetermined angle, it reaches the working position, and the predetermined angle is necessarily related to the initial state of the seat 1, which will not be described here.

[0054] It is obvious that when the shell 4 rotates by a predetermined angle, it is in the desired working state, at this time the working surface, that is, the surface facing the vehicle window, is in a state suitable for the impact of the punch 3. It is obvious that the best state of the punch 3 impact is that the punch 3 is perpendicular to the surface of the vehicle window glass.

[0055] In combination with Figure 1 And Figure 3, the rectangular box structure formed by the shell 4 and the seat 1 has three holes, one of which is opened on the working surface and is recorded as the protruding hole for the protrusion of the punch 3; the other is opened on the surface opposite to the working surface, which can be recorded as the back surface according to the aforementioned reference system, and the hole opened on the back surface is recorded as the power hole for the introduction of power; the other is opened on the upper surface as shown in Figure 1 , which is recorded as the intervention hole for the intervention of the button 9, so as to control the lock catch.

[0056] Correspondingly, the back surface is parallel to the working surface, and the upper surface is perpendicular to the working surface, which is manifested in the rectangular box structure to form the front panel, the back panel and the top panel.

[0057] As mentioned earlier, the protruding hole is used for the protrusion of the punch 3, and the punch 3 is in the working stroke. Figure 1 In the exemplary structure, the protruding end is sharp for direct action on the window glass, and the main body of the punch 3 is a rod for determining the working stroke of the punch 3.

[0058] The main body of the punch 3 is located in the shell 4, and the main body of the punch is a rod, which does not mean that all of them are rods, and the rear part can be relatively large, that is, larger than the hole diameter of the protruding hole.

[0059] As mentioned earlier, the gear set can have various configurations, but since the force transmitted is not large, it is not necessary to have a large size, Figure 3 The gear 13 is relatively large, but since the torque transmitted by the gear 13 is small, the individual can be relatively small, thereby reducing the vertical size of the window breaker.

[0060] Similarly, each set of racks can only have one rack, so that the thickness (left and right direction, i.e. width) of the window breaker is relatively small.

[0061] At the same time, in view of the opposite directions of the two sets of racks, it is equivalent to motion folding, so that the length direction size, that is, the axial size of the punch 3 is also relatively small.

[0062] There are two sets of racks, and the two sets of racks are driven by the gear 13, which is similar to an idler here for changing direction without changing the transmission ratio.

[0063] For convenience of description, one of the two sets of racks is recorded as the driven rack 15, and the other set of racks is recorded as the driving rack 12. Correspondingly, the driven rack 15 is fixedly connected with the punch 3, and the two form a first assembly, and the upper side of the tail end or rear end of the first assembly is provided with a stopper 19 for cooperation with the lock catch.

[0064] The driven rack 15 and the punch 3 can be connected by screws, bolts, etc., or can be connected by welding.

[0065] The driving rack 12 is used to introduce power, and its movement is linear, which is one of the basic movements in the mechanical field.

[0066] Accordingly, a push rod 18 is provided, and the front end of the push rod 18 is fixedly connected with the driving rack 12. The push rod 18 protrudes from the power hole, and human power can be used to push the push rod 18 to push the driving rack 12 forward. Accordingly, the driving rack 12 pushes the gear 13 engaged with the driving rack 12 to rotate, and the rotating gear 13 drives the driven rack 15 to move backward to store power.

[0067] Accordingly, a power storage component is provided to be gradually compressed during the backward movement of the driven rack 15, so as to store power. The power storage component is located in the housing 4. Obviously, the power storage component needs to abut against the tail end of the driven rack 15 or the punch 3, so as to provide the impact force of the punch 3 in the impact direction during the reset.

[0068] Further, a lock catch is provided in the housing 4 to lock the stopper 19 after the stopper 19 reaches a predetermined position. The lock catch includes a button 9 for controlling the lock catch to unlock the stopper 19. The button 9 protrudes from the intervention hole, so that the operator can press the button 9 to unlock the stopper 19 after the power storage is completed, and the punch 3 is pushed forward by the power storage component to impact the glass.

[0069] The working surface is shielded by the front panel, so it is not easy to injure the operator.

[0070] Meanwhile, the window breaker based on the embodiment of the present application does not need to generate a swinging action, and the impact force is relatively stable. Overall, the impact stability is relatively good, and it is not easy to injure the operator.

[0071] In some implementations, each group of racks can only have one rack, which has been described in the foregoing, and will not be described here. In other implementations, each group of racks includes two racks, and the two racks have a certain width, which facilitates the smooth operation of, for example, the punch 3 between the two racks, and facilitates centering.

[0072] Accordingly, the punch 3 is fixed between the two driven racks 15. The fixing method has been described in the foregoing, and will not be described here.

[0073] In the mechanical field, the rack often has an independent guide structure. If the punch 3 has a relatively good guide method, the corresponding driven rack 15 can not be configured, for example, a sleeve is configured for the punch 3, and the sleeve is provided with a linear bearing or a tin bronze bushing. In the preferred embodiment, the two driven racks 15 are constructed as a whole, and the punch 3 is based on the whole. At this time, only the driven rack 15 needs to be guided, and of course, the punch 3 can also be guided.

[0074] In some embodiments, the two driven racks are guided by guide frames fixed on the seat 1 or the housing 4. When fixed on the seat 1, the seat 1 can be, for example, an L-shaped structure, and the guide frames are fixed on the vertical plate of the L-shaped structure.

[0075] When the guide frames are fixed on the housing 4, the guide frames are divided into two parts, which are fixed on the left and right panels respectively. The fixing method can be welding or screwing.

[0076] Further, the driven rack 15 and the guide frame form a moving pair, for example, a guide rail pair.

[0077] Correspondingly, a ball is arranged on the interface of the moving pair, or a roller 16 is arranged on one component of the moving pair. The roller 16 is preferably mounted on the driven rack 15.

[0078] Since the spring is a standard component or a customized component, and the stiffness coefficient is relatively stable, the force storage component preferably comprises a spring as the core component.

[0079] Correspondingly, in some embodiments, the force storage component is a spring assembly corresponding to the driven rack 15 and comprising a spring guide column. The spring guide column is used to ensure the stability of the spring, so that the punch 3 runs more smoothly.

[0080] Correspondingly, as shown in Figure 3 , the stopper 19 is a block arranged on the upper side of the tail end of the punch 3.

[0081] Further, as shown in Figure 4 , the lock includes a hook 22. The hook 22 is inclined or arc-shaped on one side of the punch 3, which is inclined in the figure, so as to form a wedge mechanism with the stopper 19 to push the hook 22 upward until the stopper 19 is constrained by the falling hook 22 after passing the hook 22. Obviously, the constraint direction is the impact direction of the punch 3, that is, the hook 22 locks the stopper 19, thereby locking the punch 3.

[0082] Correspondingly, the hook 22 has a reset force opposite to the driving direction of the wedge mechanism, and the button 9 is used to hold the hook 22 against the reset force. When the hook 22 constrains the stopper 19, a sound will be produced due to the reset force, which makes it easy for the operator to determine whether the push rod 18 is pushed to the right position, thereby facilitating the operation.

[0083] Further, when the button 9 is pressed, the hook 22 is pushed up and gradually released from the constraint, and the punch 3 is pushed forward under the action of, for example, the spring.

[0084] In Figure 4 the exemplary structure, the hook 22 is included in a lever mechanism and is arranged at one end of the corresponding lever. The middle part of the lever is installed on the housing 4 through a hinge shaft 24.Figure 3 If the control compartment 20 is not provided, the hinge shaft 24 is adapted to be provided with a hinge support, for example, based on the shell 4.

[0085] The other end of the lever is adapted to be provided with the button 9, and the lever generates movement based on pressing to make the hook head 22 overcome the reset force and go up.

[0086] Correspondingly, the lever is provided with a torsion spring at the adapted hinge support or is provided with a reset spring on the button side to provide the reset force.

[0087] In Figure 4 In the illustrated structure, the main body of the button 9 is a vertical rod member, and the lower end of the vertical rod member is hinged to the other end of the lever, for example, Figure 4 In the illustrated structure, the right end of the lever is hinged to the lower part of the button 9 through the hinge shaft 25.

[0088] The intervention hole is a vertical hole 26, and an active gap is left between the vertical hole 26 and the vertical rod member to avoid movement interference.

[0089] In some embodiments, the main drive rack 12 has two, and the two main drive racks 12 are connected through the connecting plate 17 to form a double connecting rack, forming a relatively stable structure as a whole.

[0090] The push rod 18 is fixedly connected to the connecting plate 17.

[0091] In some embodiments, the side of the main drive rack 12 away from the driven rack 15 is guided by a guide rail or a guide groove formed on a plate body, and the plate body is included in the seat 1 or fixed on the seat 1 to form a guide plate.

[0092] In some embodiments, in order to ensure that the window breaker has relatively good stability when impacting, the working surface is provided with suction cups 2, and the number of the suction cups 2 is 2-4.

[0093] Figure 3 In the illustrated structure, the seat 1 is an L-shaped seat, and cooperates with the shell to form a rectangular box structure, and the L-shaped seat forms two panels of the rectangular box structure.

[0094] The hinge between the seat 1 and the fixed plate 6 is a composite hinge composed of a pair of hinge shafts.

[0095] Correspondingly, the seat 1 and the fixed plate 6 have an intermediate member, which is hinged to the seat 1 through a first hinge shaft and is hinged to the fixed plate 6 through a second hinge shaft.

[0096] The first hinge shaft and the second hinge shaft are perpendicular to each other.

Claims

1. A window breaker, characterized in that, The utility model relates to a window control device, comprising: a mounting plate; a seat hinged to the mounting plate by a hinge shaft, having a degree of freedom of swinging about the hinge shaft axis; a housing mounted on the seat, the housing having a working face facing the window when the seat is turned by a predetermined angle, the working face being provided with a protruding hole, a penetrating hole being provided on a face of the housing perpendicular to the working face, and a power hole being provided on a face of the housing parallel to the working face; a punch, the main body of which is located in the housing and one end of which protrudes from the protruding hole; a gear set, located in the housing, comprising two sets of parallel racks and a gear for transmission between the two sets of racks, one set of racks constituting a driven rack, the driven rack being fixedly connected to the punch and provided at the tail end with a stopper, the other set of racks constituting a driving rack; a force storage component, located in the housing and acting on the driven rack or the punch, to provide an impact force in the impact direction of the punch; a push rod, fixedly connected to the driving rack and protruding from the power hole; and a lock catch, located in the housing to lock the stopper after the stopper reaches a predetermined position, the lock catch comprising a button for controlling the lock catch to unlock the stopper, the button protruding from the penetrating hole. Each set of racks comprises two racks.

2. The window breaker of claim 1, wherein Correspondingly, the punch is fixed between the two driven racks. The two driven racks are guided by a guide frame fixed to the seat or the housing.

3. The window breaker of claim 2, wherein, A moving pair is formed between the driven rack and the guide frame, and a ball is arranged on the interface of the moving pair or a roller is arranged on one component of the moving pair. The force storage component is a spring assembly corresponding to the driven rack and comprising a spring guide column.

4. A window breaker according to claim 2 or 3, characterised in that, Correspondingly, the stopper is a block arranged on the upper side of the tail end of the punch. Correspondingly, the lock catch comprises a hook head, one face of the hook head facing the punch being a beveled face or an arc face to form a wedge mechanism with the stopper to push the hook head upward until the stopper is constrained by the falling hook head after passing the hook head. Correspondingly, the hook head has a reset force opposite to the driving direction of the wedge mechanism, and the button is used to hold up the hook head against the reset force. The hook head is included in a lever mechanism, which is arranged at one end of a corresponding lever, and the other end of the lever is adapted to the button.

5. The window breaker of claim 4, wherein, Correspondingly, the lever is provided with a torsional spring at the corresponding hinge support or a reset spring on the button side to provide the reset force. The main body of the button is a vertical rod, and the lower end of the vertical rod is hinged to the other end of the lever.

6. The window breaker of claim 5, wherein, The penetrating hole is a vertical hole, and an active gap is left between the vertical hole and the vertical rod. The driving rack has two driving racks, and the two driving racks are connected by a connecting plate at the driving end to form a double connecting rack.

7. The window breaker of claim 1, wherein, The push rod is fixedly connected to the connecting plate. The side of the driving rack away from the driven rack is guided by a guide rail or a guide groove formed on a plate body, and the plate body is included in the seat or fixed to the seat to form a guide plate.

8. The window breaker of claim 1 or 7, wherein, The working face is provided with suction cups, and the number of suction cups is 2-4.

9. The window breaker of claim 1, wherein, The seat is an L-shaped seat, and the L-shaped seat and the housing form an oblong box structure.

10. The window breaker of claim 1, wherein, The hinge between the seat and the mounting plate is a composite hinge, which is composed of a pair of hinge shafts. Correspondingly, the seat and the mounting plate have an intermediate component, the intermediate component being hinged to the seat by a first hinge shaft and hinged to the mounting plate by a second hinge shaft. ​ The first hinge shaft and the second hinge shaft are perpendicular to each other.

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