CN217854208U - Window breaking hammer - Google Patents

Abstract

The utility model relates to a broken window hammer, include: the trigger component is fixedly assembled on one side, close to the telescopic head, of the firing pin, has a radial compression state and a radial expansion state, a guide structure is arranged between the trigger component and the telescopic head, and the trigger component can move along the guide structure relative to the telescopic head; the telescopic head is provided with a pushing part and a movable cavity, the pushing part is matched with the trigger component so as to drive the striker to move and compress the elastic piece through the trigger component when the telescopic head is pressed, and the trigger component can enter the movable cavity and can move along the guide structure; the inner side wall of the shell main body is provided with a convex structure, and in the movement process of the trigger component, the convex structure is used for driving the trigger component to be converted into a radial compression state from a radial expansion state so as to enable the trigger component to enter the movable cavity. The window breaking hammer set up in this way has the advantages of small energy loss, high window breaking success rate, simple structure, convenience in processing and lower cost.

Description

Window breaking hammer

Technical Field

The utility model relates to a broken window instrument of fleing technical field especially relates to a broken window hammer.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

At present, people can break window glass by using a window breaking hammer to escape and save themselves when the door cannot be opened due to various accidents and traffic accidents during traveling or self-driving activities by taking a vehicle. The window breaking hammer which is arranged on a vehicle at first is usually a small window breaking hammer with a handle and a breaking head, when the small window breaking hammer is used, a user holds the handle and then swings the window breaking hammer to knock glass for many times to break the glass, the knocking energy is small, and passengers with small strength are very easy to break the window and fail. Meanwhile, when an emergency occurs, people can be injured, the window breaking hammer is not convenient to swing, or a vehicle falls into water, water is poured into the vehicle, and due to the fact that resistance force of the water is insufficient, the glass cannot be broken, and therefore the escape cannot be achieved.

In order to solve the above problems, a conventional window breaking hammer has been proposed in which a spring is charged by pressing, and when the window breaking hammer is pressed to a certain extent, energy stored in the spring is instantaneously released by an internal structure, so that the force stored in the spring strikes a glass by a striker, thereby breaking a window. For example, in the mini window breaking hammer disclosed in the chinese utility model with the publication number CN203402119U, the firing pin inside the hammer is inclined with the impact outlet, and when the energy is released by the power storage spring, the firing pin will rub and collide with the internal structure, thereby consuming the energy of the firing pin impacting the glass, resulting in a low success rate of breaking the window. There are also strikers that need to be rotated when released, which is also a way of energy consumption. Both of these approaches result in a loss of energy during the release of the striker.

SUMMERY OF THE UTILITY MODEL

In this regard, it is desirable to provide a window hammer that does not rotate while the striker moves axially during both power up and power down.

A window breaking hammer comprising: the retractable head is arranged on one side of the housing main body and can move relative to the housing main body along the axis of the housing main body, and the striker and the elastic piece are both arranged in the housing main body, and the retractable head is characterized in that a trigger member is fixedly assembled on one side of the striker close to the retractable head, the trigger member has a radial compression state and a radial expansion state, a guide structure is arranged between the trigger member and the retractable head, and the trigger member can move relative to the retractable head along the guide structure; the telescopic head is provided with a pushing part and a movable cavity, the pushing part is matched with the trigger component so as to drive the striker to move towards one side far away from the telescopic head along the axial direction and compress the elastic piece through the trigger component when the telescopic head is pressed, the trigger component can enter the movable cavity, and the trigger component can move relative to the movable cavity along a guide structure; the inner side wall of the shell main body is provided with a convex structure, and in the process that the trigger component moves towards the side far away from the telescopic head, the convex structure is used for driving the trigger component to be converted into a radial compression state from the radial expansion state, so that the trigger component can enter the movable cavity; when the trigger member enters the movable cavity, the elastic piece drives the trigger member to move along the guide structure relative to the telescopic head and extend out of the end part of the telescopic head to impact glass.

In one embodiment, the trigger member comprises: connecting the main body and the elastic sheet; the connecting main body is fixedly connected to the firing pin; the elastic piece is fixedly connected to the connecting body, and a gap for accommodating the elastic piece when the elastic piece contracts in the radial direction is formed between the elastic piece and the connecting body.

In one embodiment, an end face of the elastic sheet on the side away from the connecting body is provided with a first abutting face and a second abutting face, and the first abutting face abuts against the protruding structure before the second abutting face abuts against the protruding structure.

In one embodiment, the guide structure comprises a guide groove and a guide block; the guide groove is arranged on the inner side wall of the telescopic head and extends along the axis direction of the telescopic head, and the guide block is arranged on the connecting main body; and/or, the guide slot set up in on the lateral wall of connecting the main part and along the axis direction extension of flexible head, the guide block set up in on the flexible head.

In one embodiment, a protrusion portion is arranged on one side, close to the protrusion structure, of the telescopic head, the protrusion portion protrudes out of the pushing portion and extends towards the protrusion structure, the guide groove is arranged on the telescopic head, and the guide groove extends to the inner wall of the protrusion portion.

In one embodiment, the elastic sheet is symmetrically provided with two pieces, the two pushing parts are provided corresponding to the elastic sheet, the protruding structure is two protruding blocks symmetrically arranged on the inner side wall of the shell main body, and the distance between the two pushing parts is not smaller than the distance between the two protruding parts.

In one embodiment, a mounting structure is arranged on the inner wall of the housing main body on the side far away from the telescopic head, one end of the firing pin is assembled with the mounting structure, one end of the elastic element is connected with the mounting structure, and the other end of the elastic element is connected with the trigger member.

In one embodiment, the window breaking hammer further comprises a return spring, the return spring is sleeved on the firing pin and the elastic piece, one end of the return spring is connected with the mounting structure, the other end of the return spring is connected with the telescopic head, and the return spring is used for providing a restoring force for the resetting of the telescopic head.

In one embodiment, a sliding groove is further formed in the inner side wall of the housing main body, and a sliding block is arranged on the outer side wall of the retractable head and is installed in the sliding groove to play a guiding role when the retractable head displaces relative to the housing main body.

In one embodiment, a flexible protection pad is arranged on one side, far away from the pushing part, of the telescopic head.

After the technical scheme is adopted, the utility model discloses beneficial effect does: through the arranged trigger component, the energy accumulated by the elastic component can be released instantly after the firing pin reaches the trigger position, the firing pin returns along the compression route and extends out of the telescopic head to impact the glass without rotating, and the energy of the firing pin impacting the glass is ensured. And a guide structure extending along the vertical direction is arranged between the trigger member and the telescopic head, so that the firing pin can vertically strike the glass at the shortest distance, the energy loss of the firing pin after the firing pin is released is reduced, and the success rate of breaking the glass by the firing pin is improved. The window breaking hammer set up in this way has the advantages of small energy loss, high window breaking success rate, simple structure, convenience in processing and lower cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of an embodiment of a window breaking hammer and glass;

FIG. 2 is a schematic diagram of an explosive structure of the window breaking hammer in one embodiment;

FIG. 3 is a schematic view of an embodiment of a window breaker with a front cover removed;

FIG. 4 is a schematic view of the striker and trigger member configuration in one embodiment;

FIG. 5 is a schematic view of an embodiment of a retractable head;

FIG. 6 is a schematic diagram of a front cover structure of the window breaking hammer in one embodiment;

FIG. 7 is a schematic view of a rear cover of the window breaking hammer in one embodiment;

FIG. 8 is a top view of a window breaker and glass with the telescoping head and striker in an initial state according to one embodiment;

FIG. 9 isbase:Sub>A view of FIG. 8 taken along section line A-A;

FIG. 10 is a top view of the window breaking hammer and glass with the trigger member in a radially contracted state according to one embodiment;

FIG. 11 is a view taken along section line B-B of FIG. 10;

FIG. 12 is a top view of the window breaker and glass with the firing pin extended out of the telescoping head according to one embodiment;

FIG. 13 is a view of FIG. 12 taken along section line C-C;

FIG. 14 is a top view of the window break hammer and glass after the firing pin impacts the glass in one embodiment;

fig. 15 is a view taken along section line D-D in fig. 14.

Reference numerals: 100. a housing main body; 110. a front cover; 120. a rear cover; 130. a raised structure; 140. a mounting structure; 141. a first mounting portion; 142. a second mounting portion; 143. an arc-shaped convex column; 144. a U-shaped groove; 145. an abutting portion; 150. a chute; 200. a telescopic head; 210. a pushing part; 220. a movable cavity; 230. a boss portion; 231. a card slot; 240. a slider; 300. a striker; 310. a conical head; 32. an annular boss; 400. an elastic member; 500. a flexible gasket; 510. avoiding holes; 600. glass; 700. a trigger member; 710. a connecting body; 720. an elastic sheet; 721. a butting surface; 730. a gap; 800. a guide structure; 810. a guide groove; 820. a guide block; 900. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of the description of the embodiments of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, interchangeably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, and communicated between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.

Referring to fig. 1, the present embodiment mainly relates to a window breaking hammer, which is mainly used for breaking or breaking windows of a vehicle when the vehicle needs to break the windows to escape in an emergency. The window breaking hammer realizes window breaking operation by pressing and storing energy and instantly releasing the stored energy when conditions are met.

Referring to fig. 1 and 2, in one embodiment, the window breaking hammer mainly includes a housing main body 100, a retractable head 200, a striker 300, and an elastic element 400. In this embodiment, the housing body 100 has a cylindrical shape, and a male screw is provided on an outer wall of the housing body 100 on the striking side. The retractable head 200 is disposed inside the housing main body 100 near the impact side, and the retractable head 200 is slidable in the axial direction thereof with respect to the housing main body 100, thereby enabling the retractable head 200 to extend or retract into the housing main body 100. The striker 300 and the elastic member 400 are both disposed in the housing main body 100, and the elastic member 400 is sleeved on the striker 300 at a side away from the retractable head 200. The elastic member 400 has one end connected to the inner structure of the housing main body 100 and the other end connected to the striker 300.

Referring to fig. 2, a flexible gasket 500 is disposed on a side of the retractable head 200 away from the housing main body 100, and the flexible gasket 500 is used to protect an impact side of the retractable head 200 and effectively improve the anti-skid performance of the retractable head 200. In order to allow the striker 300 to smoothly extend out of the end surface of the retractable head 200 on the impact side, a clearance hole 510 is provided through the flexible protective sheet 50. In this embodiment, the flexible gasket 500 is made of a silicone material, and in other embodiments, the flexible gasket may be made of an elastic rubber, an elastic plastic, or the like.

In this embodiment, the elastic member 400 is an energy storage spring. In other embodiments, the elastic member 400 may also be a power spring, a power spring block, or the like. The housing main body 100 includes a front cover 110 and a rear cover 120, and the front cover 110 and the rear cover 120 are fixed to each other by two fastening screws (not shown in the drawings). A guide structure 800 is provided between the telescopic head 200 and the striker 300, and the guide structure 800 can guide the movement of the striker 300 in the axial direction of the housing main body 100. When the window breaking hammer is used, the end portion of the retractable head 200 for striking the glass 600 is first brought into close contact with the glass 600 to be struck, or the retractable head 200 is made to strike the glass 600, and then the housing main body 100 is driven to move toward the glass 600 side, so that the retractable head 200 moves toward the inner side of the housing main body 100. In the moving process of the retractable head 200, the striker 300 is driven to move in the housing main body 100 to the side away from the glass 600, and the elastic member 400 is compressed in the moving process, so that the elastic member 400 stores energy.

With continued reference to fig. 2, in one embodiment, the trigger member 700 is disposed on a side of the striker 300 adjacent to the retractable head 200, and the trigger member 700 has a radially compressed state (as shown in fig. 11) and a radially expanded state (as shown in fig. 9). When the trigger member 700 is in a radially compressed state, it can enter the inside of the retractable head 200 and extend out of the retractable head 200 to directly impact the glass 600 under the driving of the elastic member 400.

Referring back to fig. 2, in an embodiment, a protrusion structure 130 is disposed on an inner sidewall of the housing main body 100. The projection structure 130 is used to force the trigger member 700 from a radially expanded state to a radially compressed state during movement of the trigger member 700 to a side away from the telescoping head 200 to allow the trigger member 700 to enter the active lumen 220.

Referring to fig. 4, in an embodiment, the striker 300 is generally cylindrical, and a tapered head 310 is disposed on a side of the striker 300 close to the retractable head 200, where the tapered head 310 is capable of increasing a success rate of breaking the glass 600 by the striker 300. The trigger member 700 is disposed on the striker 300 on a side thereof adjacent to the tapered head 310. The trigger member 700 includes a connecting body 710 and an elastic piece 720. The connecting body 710 is used to connect with the striker 300. The elastic piece 300 is connected to the connecting body 710 at its upper end, and extends toward the tapered end 310 at its other end. In order to facilitate the deformation of the elastic piece 720 when being squeezed by the protrusion 130, a gap 730 for accommodating the elastic piece 720 when being elastically deformed is provided between the elastic piece 720 and the connecting body 710.

Referring to fig. 4, in an embodiment, two elastic pieces 720 are disposed, and the end surfaces of the two elastic pieces 720 on the side far away from the connecting body 710 are disposed with abutting surfaces 721, and the abutting surfaces 721 are used for abutting against the protruding connectors 130.

It is noted that the abutting surface 721 includes a first abutting surface and a second abutting surface. When the retractable head 200 pushes the striker 300 and the trigger member 700 to move towards the inside of the housing main body 100, the first abutting surface abuts against the protrusion structure 130 before the second abutting surface, and both the two elastic pieces 720 are forced by the protrusion structure 130 to close towards one side of the connecting main body 710, so that the distance between the two elastic pieces 720 is reduced.

The first contact surface is provided to prevent the elastic piece 720 from being suddenly and directly compressed into a radially compressed state by the boss structure 130, to extend the compression path, to allow the elastic piece 720 to gradually conform, and to notify the user that the trigger member 700 is being compressed. The purpose of avoiding the sudden and large compression of the elastic sheet 720 is to reduce the occurrence of fracture of the elastic sheet 720 and prolong the service life of the elastic sheet 720. And the extension of the compression path enables the resilient tab 720 to gradually adapt to compression, further extending its useful life.

In the present embodiment, the connecting body 710 is quadrangular, and the elastic piece 720 and the connecting body 710 are integrally formed. Connecting body 710 is integrally formed with striker 300 as well. In other embodiments, the connection between the elastic sheet 720 and the connecting body 710 may be welding, bonding, clipping, etc. The connection between connecting body 710 and striker 300 may also be by welding, adhesive, snap-fit, etc.

Specifically, referring to fig. 2, 3 and 5, in an embodiment, the retractable head 200 has a pushing portion 210 and a movable cavity 220. The pushing part 210 is engaged with a lower end surface of the trigger member 700, so that when the retractable head 200 is pressed, the trigger member 700 drives the striker 300 to move along the axial direction of the housing main body 100 to the side away from the retractable head 200, and compresses the elastic member 400. When the telescopic head 200 pushes the striker 300 and the trigger member 700 to the trigger position, the lower end surface of the trigger member 700 is separated from the abutting portion 200 and enters the movable cavity 220 under the elastic force of the elastic member 400; when the trigger member 700 enters the movable chamber 220, the elastic member 400 drives the trigger member 700 to move along the guide structure 800 relative to the retractable head 200 and extend out of the end of the retractable head 200 to hit the glass 600.

It is noted that in one embodiment, the retractable head 200 is generally cylindrical. Referring to fig. 8 and 9, when the retractable head 200 is assembled with the housing main body 100, a portion of the retractable head 200 is exposed outside the housing main body 100. Further, referring to fig. 10 and 11, when the retractable head 200 pushes the striker 300 and the trigger member 700 to the trigger position, a part of the retractable head 200 is still exposed to the outside of the housing main body 100. The arrangement can effectively avoid the direct rigid impact between the housing main body 100 and the glass 600, and the housing main body 100 is protected.

Referring to fig. 2, in one embodiment, the protrusion structures 130 are two bumps symmetrically disposed on the housing main body 100. The elastic piece 720 is provided with two pieces corresponding to the bumps. Two pushing portions 210 are provided corresponding to the elastic pieces 720. It should be ensured that when the triggering member 700 is in a compressed state, the distance between the outermost end faces of the two elastic sheets 720 is not greater than the distance between the two protrusions and the distance between the two abutting portions 210, and meanwhile, the distance between the two protrusions is not greater than the distance between the two abutting portions 210. This arrangement ensures that the trigger member 700 can be successfully advanced into the active volume 220 in the radially compressed state.

With continued reference to fig. 2, in one embodiment, the trigger member 700 and the striker 300 are capable of moving together along the guide structure 800 relative to the retractable head 200. In the present embodiment, the extending direction of the guide structure 800 is the same as the axial extending direction of the housing main body 100. Obviously, the guide structure 800 can keep the moving track of the striker 300 always the same as the axial direction of the housing main body 100, and can further ensure that the striker 300 vertically strikes the glass 600, thereby reducing energy loss. Meanwhile, the guide structure 800 can also limit the rotation of the striker 300 in the process of movement due to the elastic force of the elastic member 400, so that the energy transmitted to the striker 300 by the elastic member 400 consumed by the rotation of the striker 300 is reduced, the energy of the striker 300 impacting the glass 600 is increased again, and the success rate of breaking the glass 600 is increased.

Specifically, the guide structure 800 includes a guide groove 810 and a guide block 820. In one embodiment, the guide groove 810 is disposed on an inner sidewall of the retractable head 200 and extends along an axial direction of the retractable head 200. The guide blocks 820 are protrudingly provided at both sidewalls of the connecting body 710 to which the elastic pieces 720 are not connected. In this embodiment, two guide slots 810 are symmetrically disposed, and correspondingly, two guide blocks 820 are also symmetrically disposed. The length of the guide block 820 is equal to the length of the connecting body 710 in the axial direction thereof, and the guide block 820 is integrally formed with the connecting body 710. In other embodiments, the guide groove 810 may also be provided on the connecting body 710, and correspondingly, the guide block 820 is provided on the inner sidewall of the telescopic head 200.

Referring to fig. 5, in an embodiment, a protrusion 230 is further disposed on a side of the retractable head 200 close to the protrusion 130, and the protrusion 230 protrudes from the pushing portion 210 and extends toward the protrusion 130. The guide groove 820 is provided on the inner sidewall of the telescopic head 200, and the guide groove 810 extends to the inner sidewall of the boss 230. The telescopic head 200 arranged in this way can enable the trigger member 700 to be guided by the guide structure 800 all the time in the movement process.

Referring to fig. 2 and 3, in an embodiment, a mounting structure 140 is disposed on an inner sidewall of the housing main body 100 away from the retractable head 200. The striker 300 is coupled to the mounting structure 140 on the side away from the retractable head 200, and the striker 300 is restricted by the mounting structure 140 and is held so as to move in the axial direction of the housing main body 100. The elastic member 400 is connected to the mounting structure 140 at one end and to the trigger member 700 at the other end. The elastic member 400 is used to accumulate energy and release the accumulated energy when the trigger member 700 is displaced to the trigger position, so that the striker 300 is ejected relative to the telescopic head 200 and the housing main body 100 and strikes the glass 600 through the telescopic head 200, thereby performing a breaking operation of the glass 600.

Referring to fig. 6 and 7, in the present embodiment, the mounting structure 140 includes a first mounting portion 141 and a second mounting portion 142. Specifically, the first mounting portion 141 is provided on the front cover 110, and the first mounting portion 142 is integrally provided with the front cover 110. The second mounting portion 142 is provided on the rear cover 120, and the second mounting portion 12 is integrally formed with the rear cover 120. When the front cover 141 and the rear cover 120 are assembled, the first mounting portion 141 and the second mounting portion 142 are fitted to each other in a plug-in manner, thereby restraining the upper end of the striker 300.

In one embodiment, two symmetrical arc-shaped protruding columns 143 are disposed on the second mounting portion 142 near the telescopic head 200, and a U-shaped groove 144 is disposed between the arc-shaped protruding columns 143. An abutting portion 145 is protrusively provided on the first mounting portion 141 at a position corresponding to the U-shaped groove 144, and the abutting portion 145 is configured to cooperate with the U-shaped groove 144 to define one end of the striker 300 in the U-shaped groove 144.

Referring back to fig. 4, the striker 300 is provided with an annular boss 320 on a side thereof remote from the trigger member 700. The annular boss 320 is adapted to engage the mounting structure 140 when the striker 300 is confined within the U-shaped slot 144, thereby preventing the resilient member 400 from disengaging the mounting structure 140 and ejecting the housing body 100 when the striker 300 is energized.

Referring to fig. 5, 6 and 7, in an embodiment, the front cover 110 and the rear cover 120 are provided with sliding grooves 150 on the inner sides thereof. The slider 240 is disposed on an outer sidewall of the retractable head 200, and the slider 240 is adapted to cooperate with the sliding groove 150 so as to guide the retractable head 200 when moving relative to the housing main body 100.

Referring to fig. 2 and 5, in one embodiment, a return spring 900 is disposed between the retractable head 200 and the mounting structure 140. The return spring housing 900 is disposed on the striker 300, the elastic member 400 and the arc-shaped protrusion 143, and has one end connected to the mounting structure 140 and the other end connected to the protrusion 230. Specifically, the protrusion 230 is provided with a locking groove 231, and the return spring 900 is locked in the locking groove 231.

Referring to fig. 8 and 9, the retractable head 200 and the striker 300 are shown in their initial states.

Referring to fig. 10 and 11, the retractable head 200 is shown to compress the striker 300 to the triggering position, in which the trigger member 700 is in a radially compressed state and the trigger member 700 can smoothly enter the movable chamber 220.

Referring to fig. 12 and 13, the striker 300 contacts the glass 600 after being ejected from the retractable head 200 by the elastic member 400.

Referring to fig. 14 and 15 together, the striker 300 is retracted into the movable chamber 220 after striking the glass 600.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. A window breaking hammer comprising: the retractable head is arranged on one side of the shell main body and can move relative to the shell main body along the axis of the shell main body, and the striker and the elastic piece are both arranged in the shell main body; the telescopic head is provided with a pushing part and a movable cavity, the pushing part is matched with the trigger component so as to drive the striker to move towards one side far away from the telescopic head along the axial direction and compress the elastic piece through the trigger component when the telescopic head is pressed, the trigger component can enter the movable cavity, and the trigger component can move relative to the movable cavity along a guide structure; the inner side wall of the shell main body is provided with a convex structure, and in the process that the trigger member moves to the side far away from the telescopic head, the convex structure is used for driving the trigger member to be converted into a radial compression state from the radial expansion state so as to enable the trigger member to enter the movable cavity; when the trigger component enters the movable cavity, the elastic piece drives the firing pin to move along the guide structure relative to the telescopic head and extend out of the end part of the telescopic head to impact the glass.

2. The window breaking hammer of claim 1, wherein the trigger member comprises: connecting the main body and the elastic sheet; the connecting main body is fixedly connected to the firing pin; the elastic piece is fixedly connected to the connecting body, and a gap for accommodating the elastic piece when the elastic piece contracts in the radial direction is formed between the elastic piece and the connecting body.

3. The window breaking hammer of claim 2, wherein an abutting surface is arranged on an end surface of the elastic sheet on a side away from the connecting body, and the abutting surface is used for abutting against the protruding structure.

4. The window breaking hammer of claim 2, wherein the guide structure comprises a guide groove and a guide block; the guide groove is arranged on the inner side wall of the telescopic head and extends along the axial direction of the telescopic head, and the guide block is arranged on the connecting main body; and/or the guide groove is arranged on the side wall of the connecting main body and extends along the axial direction of the telescopic head, and the guide block is arranged on the telescopic head.

5. The window breaking hammer of claim 4, wherein a protrusion is disposed on one side of the telescopic head, which is close to the protrusion, and protrudes out of the pushing portion and extends toward the protrusion, and the guide groove is disposed on the telescopic head and extends to an inner wall of the protrusion.

6. The window breaking hammer according to claim 4, wherein the elastic pieces are symmetrically arranged in two, the pushing portion is arranged in two corresponding to the elastic pieces, and the protruding structure is two protruding blocks symmetrically arranged on the inner side wall of the housing body.

7. The window breaking hammer according to any one of claims 1-6, wherein a mounting structure is arranged on the inner wall of the housing main body on the side away from the telescopic head, one end of the striker is assembled with the mounting structure, one end of the elastic element is connected with the mounting structure, and the other end of the elastic element is connected with the trigger member.

8. The window breaking hammer of claim 7, further comprising a return spring, wherein the return spring is sleeved on the striker and the elastic member, one end of the return spring is connected with the mounting structure, the other end of the return spring is connected with the retractable head, and the return spring is used for providing a restoring force for the restoration of the retractable head.

9. The window breaking hammer of claim 7, wherein a sliding groove is further formed in an inner side wall of the housing main body, and a sliding block is arranged on an outer side wall of the retractable head and is mounted in the sliding groove to guide the retractable head when the retractable head displaces relative to the housing main body.

10. The window breaking hammer of claim 7, wherein a flexible protective pad is disposed on a side of the telescoping head away from the abutting portion.

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