Window breaking hammer

Abstract

The utility model relates to a window breaking hammer. According to the technical scheme, the device comprises a bottom plate, a mounting base is fixed to the bottom plate, a sleeve is rotationally mounted in the mounting base, the sleeve and the mounting base are connected through a torsional spring, a first hard pipe is fixed in the sleeve, the left end and the right end of the first hard pipe are each provided with an L-shaped second hard pipe in an inserted mode, and a polished rod is inserted into the end of each second hard pipe. The first hard pipe, the second hard pipe and the polish rod are slidably attached and installed to form a closed cavity, a hammer head is arranged at the free end of the polish rod, a high-pressure gas cylinder is arranged on the installation base, and the sleeve rotates to enable the high-pressure gas cylinder to be communicated with the first hard pipe. On one hand, the position of the hammer head can be directly determined, the designated weak link of the vehicle window glass is guaranteed, the vehicle window glass can be broken through one-time hitting, positioning is accurate, and operation is easy. On the other hand, the diameter of the hammer head is increased relative to the rotating position, the linear speed is increased after resetting, the hammering force is larger, the probability of one-shot breaking can be further increased, and repeated operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety, in particular to a window-breaking hammer. Background Art

[0002] A window breaker hammer is an auxiliary window breaking tool, commonly used by passengers to escape in an emergency situation in a car.

[0003] The prior art provides a large number of different types of window-breaking hammers. For example, Patent Application No. 2018103978480, entitled "A Window-Breaking Hammer for Rail Transit," provides a manual window-breaking hammer for use on public transportation. Its improved feature is a replaceable hammer body, preventing the hammer head from being abandoned and wasting resources after damage. Another example is Patent Application No. 2021207603132, entitled "Window-Breaking Hammer," which provides a window-breaking hammer with a foldable handle, making it easy to fold and carry when not in use.

[0004] The window breaking hammers provided in the above-mentioned prior art all need to be taken out and swung when in use. However, in actual accidents, on the one hand, the space inside the car may not be suitable for swinging the hammer to break the window, and on the other hand, the passengers are in a highly nervous or injured state after the accident, which has many limitations. Of course, the prior art also discloses a patent application number: 2017111688930, entitled: A Window Breaker. This type of power-accumulating striker-type window breaker, however, is small in size, easily damaged, and has low reusability. It is often used for emergency evacuation in private cars.

[0005] The window breaking hammers currently used in public transportation equipment still have much room for improvement in terms of ease of operation. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a window breaking hammer to further improve the problem of the convenience of operating the window breaking hammer on public transportation.

[0007] The technical solution to the problem includes a base plate, a mounting seat is fixed on the base plate, a sleeve is rotatably installed in the mounting seat, the sleeve and the mounting seat are connected via a torsion spring, a first hard tube is fixed in the sleeve, an L-shaped second hard tube is inserted at each end of the left and right ends of the first hard tube, a light rod is inserted at the end of each second hard tube, the first hard tube, the second hard tube and the light rod are slidably fitted together to form a closed cavity, a hammer head is provided at the free end of the light rod, a high-pressure gas cylinder is provided on the mounting seat, and the sleeve can be rotated to connect the high-pressure gas cylinder with the first hard tube.

[0008] Preferably, the high-pressure gas cylinder is screwed onto the mounting seat, an arc-shaped groove is provided in the middle of the sleeve, the bottle mouth of the high-pressure gas cylinder is slidably fitted with the bottom of the arc-shaped groove, and an air passage connected to the first hard tube is provided at the upper end of the arc-shaped groove.

[0009] Preferably, an annular groove is respectively provided at both ends of the sleeve, and the torsion spring is installed in the annular groove, with one end of the torsion spring fixed in the annular groove and the other end fixed on the mounting seat.

[0010] Preferably, the cross-sections of the first hard tube, the second hard tube and the polished rod are all rectangular, the end of the second hard tube slides in the first hard tube but cannot fall out, and the polished rod slides in the second hard tube but cannot fall out.

[0011] Preferably, a limiting rod is provided on the bottom plate. When the second hard tube contracts into the first hard tube, the second hard tube is supported by the limiting rod. When the second hard tube extends from the first hard tube, the limiting rod no longer blocks the second hard tube.

[0012] Preferably, a hollow handle is provided above the second rigid tube, and an L-shaped rod is slidably mounted on each end of the handle, and the free end of the L-shaped rod is fixed to the corresponding second rigid tube.

[0013] Preferably, a bleed bolt is screwed onto the second hard tube.

[0014] Preferably, a mounting hole is provided on the base plate.

[0015] The utility model has the following advantages:

[0016] First, the device is installed on the wall of the compartment between two windows of public transportation. When not in use, the second hard tube retracts into the first hard tube, and the bare rod retracts into the second hard tube. The device as a whole is in a contracted state, the high-pressure gas cylinder is not connected to the airway, and the arc groove blocks the opening of the high-pressure gas cylinder. The second hard tube is supported by the limit rod. In this state, the device is small in size and does not affect the normal use of the window.

[0017] Second, when an accident occurs, the handle can be pulled down to rotate the sleeve. During this process, the high-pressure gas cylinder is connected to the airway, so that the cavity formed by the first hard tube, the second hard tube and the light rod is inflated and extended, and the device is in an extended state. This position is designed in advance so that the side hammer head can directly locate the weak position of the window corner. After releasing the hand, the hammer head that is extended into place can directly smash the car window under the restoring action of the torsion spring.

[0018] Third, when the device is in its extended state, it can directly locate the hammer head at the specific weak spot of the window glass, ensuring a single-shot shattering strike. This allows for precise positioning and simple operation. Furthermore, the hammer head's diameter becomes longer relative to its rotational position, increasing its linear velocity after resetting and delivering a stronger strike force. This further increases the probability of a single-shot shattering strike and avoids repeated operations.

[0019] Fourth, this device can achieve the synchronous breaking of two glasses at a time, which has significant advantages in public emergency response. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional view of the utility model in the contracted state.

[0021] Figure 2 It is a three-dimensional view of the utility model in the extended state.

[0022] Figure 3 This is a three-dimensional view of the structure for limiting the hinge position of the present invention in a cross-sectional state.

[0023] In the figure: base plate 1, mounting base 2, sleeve 3, torsion spring 4, first hard tube 5, second hard tube 6, polished rod 7, hammer head 8, high-pressure gas cylinder 9, arc groove 10, air channel 11, annular groove 12, limit rod 13, handle 14, L-shaped rod 15, bleed bolt 16. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0026] Depend on Figures 1 to 3As can be seen, the present invention comprises a base plate 1 with mounting holes provided therein, through which bolts are secured to the body of a public transportation vehicle adjacent to a window. A mounting base 2 is fixed to the base plate 1, within which a sleeve 3 is rotatably mounted. Each end of the sleeve 3 is provided with an annular groove 12. The sleeve 3 is connected to the mounting base 2 via a torsion spring 4, which is mounted within the annular groove 12. One end of the torsion spring 4 is secured within the annular groove 12, while the other end is secured to the mounting base 2.

[0027] A first rigid tube 5 is fixed within the sleeve 3. An L-shaped second rigid tube 6 is inserted at each end of the first rigid tube 5. A polished rod 7 is inserted at the end of each second rigid tube 6. A bleed bolt 16 is screwed onto the second rigid tube 6. The first rigid tube 5, second rigid tube 6, and polished rod 7 are slidably fitted together to form a sealed cavity. The cross-sections of the first rigid tube 5, second rigid tube 6, and polished rod 7 are all rectangular. The ends of the second rigid tube 6 slide within the first rigid tube 5 but cannot escape, and the polished rod 7 slides within the second rigid tube 6 but cannot escape.

[0028] In order to facilitate the simultaneous driving of the two polished rods 7 to move, a hollow handle 14 is provided above the second rigid tube 6 , and an L-shaped rod 15 is slidably installed at each end of the handle 14 , and the free end of the L-shaped rod 15 is fixed to the corresponding second rigid tube 6 .

[0029] The free end of the light rod 7 is provided with a hammer head 8, and a high-pressure gas cylinder 9 is provided on the mounting seat 2. The sleeve 3 is rotated to connect the high-pressure gas cylinder 9 with the first hard tube 5. The high-pressure gas cylinder 9 is screwed onto the mounting seat 2. An arc-shaped groove 10 is provided in the middle of the sleeve 3. The bottle mouth of the high-pressure gas cylinder 9 is slidably fitted with the bottom of the arc-shaped groove 10, and the upper end of the arc-shaped groove 10 is provided with an airway 11 connected to the first hard tube 5.

[0030] In order to ensure that the second hard tube 6 can be limited and supported in the retracted state, a limiting rod 13 is provided on the base plate 1. When the second hard tube 6 is retracted into the first hard tube 5, the second hard tube 6 is supported by the limiting rod 13. When the second hard tube 6 extends from the first hard tube 5, the limiting rod 13 no longer blocks the second hard tube 6.

[0031] The specific working process of the present utility model is as follows: the device fixes the bottom plate 1 to the carriage body between the windows via bolts. Open the bleed bolt 16 so that the cavity formed by the first hard tube 5, the second hard tube 6 and the light rod 7 is connected to the outside world. At this time, the light rod 7 is manually retracted into the second hard tube 6, and the second hard tube 6 is retracted into the first hard tube 5. The retracted second hard tube 6 is placed on the limit rod 13. Since the handle 14 is hollow, the handle 14 is slidably connected to the L-shaped rod 15, so the handle 14 is adapted to the sliding connection of the L-shaped rod 15 during the contraction of the device. After completion, re-tighten the bleed bolt 16.

[0032] After the device is fixed according to the landing point of the hammer head 8 after the device is extended, the opening of the high-pressure gas cylinder 9 is sealed with the bottom of the arc-shaped groove 10, and the oil film seal can achieve long-term air leakage. Therefore, the device is retracted and fixed without external force, without affecting the normal opening and closing of the car window.

[0033] When an accident occurs, quickly pull down the handle 14. During this process, the handle 14 drives the first hard tube 5 through the second hard tube 6 to drive the sleeve 3 to rotate. During this process, the torsion spring 4 continues to accumulate force, and the movement of the sleeve 3 connects the airway 11 with the opening of the high-pressure gas cylinder 9. The high-pressure gas in the high-pressure gas cylinder 9 instantly fills the cavity formed between the first hard tube 5, the second hard tube 6 and the light rod 7, and under the action of pressure, the device is unfolded and extended into place. At this time, release the handle 14, and the torsion spring 4 resets the hammer head 8 after extension to hit the weak position of the glass, so that the car window glass is shattered in one blow. During this process, the torsion spring 4 resets and drives the sleeve 3 to rotate. During this process, the airway 11 is separated from the high-pressure gas cylinder 9 again, so that the device cannot automatically reset after extension.

[0034] After the accident is handled, the car window is replaced and the device is reset, and the device can be reused.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A window breaking hammer, comprising a base plate (1), characterized in that: A mounting base (2) is fixed on the base plate (1), a sleeve (3) is rotatably mounted in the mounting base (2), the sleeve (3) and the mounting base (2) are connected via a torsion spring (4), a first hard tube (5) is fixed in the sleeve (3), an L-shaped second hard tube (6) is inserted at each of the left and right ends of the first hard tube (5), a light rod (7) is inserted at the end of each second hard tube (6), the first hard tube (5), the second hard tube (6) and the light rod (7) are slidably fitted and mounted to form a closed cavity, a hammer head (8) is provided at the free end of the light rod (7), a high-pressure gas cylinder (9) is provided on the mounting base (2), and the sleeve (3) can be rotated to connect the high-pressure gas cylinder (9) to the first hard tube (5).

2. A window breaking hammer according to claim 1, characterized in that: The high-pressure gas cylinder (9) is screwed onto the mounting seat (2), and an arc-shaped groove (10) is provided in the middle of the sleeve (3). The mouth of the high-pressure gas cylinder (9) is slidably fitted with the bottom of the arc-shaped groove (10), and an air passage (11) connected to the first hard tube (5) is provided at the upper end of the arc-shaped groove (10).

3. A window breaking hammer according to claim 1, characterized in that: An annular groove (12) is provided at each end of the sleeve (3), and the torsion spring (4) is installed in the annular groove (12). One end of the torsion spring (4) is fixed in the annular groove (12), and the other end is fixed on the mounting seat (2).

4. A window breaking hammer according to claim 1, characterized in that: The cross-sections of the first hard tube (5), the second hard tube (6) and the polished rod (7) are all rectangular; the end of the second hard tube (6) slides in the first hard tube (5) but cannot escape; and the polished rod (7) slides in the second hard tube (6) but cannot escape.

5. The window breaking hammer according to claim 1, characterized in that: A limiting rod (13) is provided on the bottom plate (1). When the second hard tube (6) contracts into the first hard tube (5), the second hard tube (6) is supported by the limiting rod (13). When the second hard tube (6) extends from the first hard tube (5), the limiting rod (13) no longer blocks the second hard tube (6).

6. The window breaking hammer according to claim 1, characterized in that: A hollow handle (14) is provided above the second rigid tube (6), and an L-shaped rod (15) is slidably mounted on each end of the handle (14), and the free end of the L-shaped rod (15) is fixed to the corresponding second rigid tube (6).

7. The window breaking hammer according to claim 1, characterized in that: A bleed bolt (16) is screwed onto the second hard tube (6).

8. The window breaking hammer according to claim 1, characterized in that: The bottom plate (1) is provided with a mounting hole.

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