CN220294004U - Impact window breaker - Google Patents

Abstract

The utility model discloses an impact window breaker which comprises an ejection seat sleeve with a top opening, a needle cylinder which can be axially and slidably arranged in the ejection seat sleeve and is provided with a top plate, a firing pin with a limit needle cap at the rear end, an ejection hole which is arranged in the middle of the top plate and is used for the firing pin to pass through, an annular shoulder which is fixedly sleeved on the firing pin and is smaller than the inner hollow of the needle cylinder, an ejection spring which is sleeved on the firing pin and pushes against the bottom surface of the annular shoulder, a side slot which is arranged on one side of the needle cylinder and extends to the bottom end, an ejection base which supports the ejection spring and causes the ejection spring to deflect towards the side slot, a pushing table which is arranged on the top of the side slot and can press the annular shoulder which deflects, and a triggering inclined shoulder which is arranged corresponding to the side slot position and pushes the annular shoulder to separate from the pushing table. The firing pin of the impact window breaker is obliquely arranged, so that when the needle cylinder is pressed and retreated, the firing pin can be retreated along with the compression ejection spring, and the inclined shoulder is triggered to straighten the firing pin and eject out to impact glass; the shoulder is always deflected to the side slot and can be quickly reset to continuously strike.

Description

Impact window breaker

Technical Field

The utility model relates to an emergency lifesaving technology in a carriage, in particular to an impact window breaker.

Background

The conventional window breaking hammer is a pointed cone-shaped metal hammer with a handle, and the window glass is broken by hand holding the handle to swing and knocking the window glass, so that escape is realized. However, the window glass has quite good strength and plays a good role in protection, and in emergency situations, such as insufficient knocking strength or lack of using skills, the window is often difficult to knock and break.

Chinese patent publication No. CN 217854208U discloses a window breaking hammer comprising: the device comprises a shell main body, a telescopic head, a firing pin and an elastic piece, wherein a triggering member is fixedly arranged on one side of the firing pin, which is close to the telescopic head, and the triggering member is in a radial compression state and a radial expansion state, a guide structure is arranged between the triggering member and the telescopic head, and the triggering member 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 member to drive the firing pin to move and compress the elastic piece through the trigger member when the telescopic head is pressed, and the trigger member 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 protruding structure, and the protruding structure is used for driving the trigger member to be converted into a radial compression state from a radial expansion state in the movement process of the trigger member, so that the trigger member can enter the movable cavity.

According to the technical scheme, the elastic piece is compressed by pushing the firing pin backwards, the trigger component is required to be pushed inwards to be pressed against the trigger component radially to be converted into a radial compression state, the trigger component enters the movable cavity to trigger the impact action, a guide structure is required to be arranged between the trigger component and the telescopic head to avoid deviation, guide positioning is also required to be carried out between the telescopic head and the shell main body where the projection structure is located, double positioning and guiding are further required to lead to complex structure, and the requirement on matching precision is high. The dimensional accuracy is insufficient, and the trigger failure is easily caused by slightly larger position deviation; and when the precision is very high and the tolerance is very small, the installation is difficult, the processing difficulty is high, and the triggering is easy to be locked by self-locking and is caused to be failed.

In addition, the trigger member compressed by self elastic deformation is easy to break under impact after aging, so that the trigger member cannot be reset and restored to frequently and continuously trigger the impact action for many times. Even if the impact trigger is not broken, plastic deformation is easy to form, the unfolding state cannot be quickly recovered, even the unfolding state cannot be recovered again, and therefore continuous triggering impact action cannot be quickly performed.

Moreover, friction force is arranged between the front end of the trigger component and the pushing part of the telescopic head to prevent the trigger component from being radially compressed, and the convex structure pushes the trigger component to be inwards compressed, so that the trigger component is easy to distort and deform to be damaged.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the impact window breaker with low structural accuracy requirement, which can quickly reset and continuously strike.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an impact window breaker, it includes having the open-top catapult seat cover, can axial slip locate in the catapult seat cover and can stretch out the needle cylinder that catapult seat cover and have the roof, locate the front end in catapult seat cover and the needle cylinder and be sharp-pointed and the firing pin that the rear end was equipped with the limit needle cap, locate the bullet hole that the firing pin was worn out in the roof middle part, fixedly cup joint in the firing pin middle part and radial size be less than the empty ring shoulder in needle cylinder, cover locate the firing pin and one end pushes away the ejector spring that the bottom of ring shoulder drove the firing pin forward, locate the side fluting that one side of needle cylinder stretched to, the support ejector spring other end and both sides difference and make ejector spring and ring shoulder to side fluting beat, be located the side fluting top can push down the local edge of the ring shoulder of swaying and axial backward push away from the push away platform and make the side of ring shoulder and make the oblique shoulder in the firing pin, be located in the seat cover one end jack in the needle cylinder pushes away from the bottom of ejector spring that the bottom of seat cover and the needle cylinder stretches forward to the bottom of needle cylinder and can stop the needle cylinder bottom to stop needle hole.

Further, a front cover and a rear cover which can be assembled and installed into an outer shell are arranged on the periphery of the ejection seat sleeve, a plug tongue which extends from the bottom end and can be inserted into an automobile safety belt buckle in a matched mode is installed between the front cover and the rear cover, a positioning block is arranged on the front cover or the rear cover, and a positioning notch matched with the positioning block is formed in the plug tongue.

Further, a guide sliding block is arranged in the ejection seat sleeve, and a sliding groove matched with the guide sliding block is arranged on the outer side surface of the needle cylinder.

Further, a side sliding groove is arranged on the inner side of the ejection seat sleeve, and a non-slip buckle which is matched with the side sliding groove and limits the extending distance of the needle cylinder is arranged on the outer side of the needle cylinder.

Further, the upper ends of the front cover and the rear cover are clamped with a middle sheath, and a sleeve hole capable of surrounding the part of the needle cylinder extending out of the ejection seat sleeve is formed in the middle of the middle sheath.

Further, the two sides of the outer shell are provided with a socket and a concave position positioned at the upper side of the socket, and the middle sheath is provided with a gear shaping which can be inserted into the socket in an adapting way and a convex buckle which is matched with the concave position; the middle sheath is provided with an end protecting cover capable of covering the trepanning, the middle sheath is provided with a slot positioned below the outer side of the convex buckle, and the end protecting cover is provided with an inserting lug capable of being inserted into the slot.

Further, the length of the firing pin is larger than the height of the ejection seat sleeve, so that the front end of the firing pin can extend out of the top opening of the ejection seat sleeve; the radial offset of the triggering inclined shoulder is larger than the radial thickness of the pushing platform.

Further, the ejection seat sleeve and the needle cylinder enclose a needle cavity capable of accommodating the firing pin, the annular shoulder and the ejection spring; when the needle cylinder is fully extended, the height of the needle cavity is larger than the maximum length of the firing pin in the needle cavity, and the bottom surface of the pushing platform is higher than the top surface of the annular shoulder.

Further, a yielding groove for the striker and the limiting needle cap to retreat is formed in the outer shell, and the yielding groove is positioned at the lower side of the ejection seat sleeve.

The utility model has the beneficial effects that: the firing pin of the impact window breaker is obliquely arranged, so that a pushing platform formed at the top of the side slot can enable the firing pin to retract along with the back when the needle cylinder is pressed and retracted, thereby compressing the ejection spring, and the triggering inclined shoulder is used for righting the firing pin through the annular shoulder so as to pass through the impact Kong Danshe to impact the glass; the synchronously compressed reset spring pushes the needle cylinder to move forward when the front resistance of the needle cylinder disappears, and the ejection spring always maintaining the deflection thrust makes the annular shoulder always deflect to one side of the side slot and quickly fall into the side slot to finish reset, so that the impact window breaker can quickly reset and continuously strike, and the requirement on structural dimensional accuracy is low.

Drawings

Fig. 1 is a schematic overall perspective view of an impact window breaker according to the present utility model.

Fig. 2 is a schematic perspective view of the impact breaker shown in fig. 1 with the end cap removed.

Fig. 3 is a partially cut-away perspective view of a portion of the structural components of the impact breaker shown in fig. 1.

Fig. 4 is a schematic perspective view of the impact window breaker shown in fig. 2 with the intermediate sheath removed.

Fig. 5 is a partially cut-away perspective view of the outer housing and barrel of the impact window breaker of fig. 4.

Fig. 6 is a schematic front view of the front cover of the impact breaker shown in fig. 4.

Fig. 7 is a schematic perspective view of the impact window breaker shown in fig. 6.

Fig. 8 is a schematic front view of a further semi-sectioned syringe of the impact window breaker of fig. 6.

Fig. 9 is a schematic perspective view of the impact window breaker shown in fig. 8.

Fig. 10 is a schematic perspective view of a rear cover of the impact window breaker.

Fig. 11 is a schematic perspective view of a front cover of the impact window breaker.

Fig. 12 is a schematic perspective view of a middle sheath of the impact window breaker.

Fig. 13 is a first perspective view of a syringe of the impact window breaker.

Fig. 14 is a second perspective view of the barrel of the impact window breaker.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

As shown in fig. 1, 3, 4, 6, 7, 8 and 9, the impact window breaker of the present utility model, the ejector sleeve comprises an ejector sleeve 11 with a top opening and a bottom plate, a needle cylinder 21 which can axially slide in the ejector sleeve 11 and can extend out of the ejector sleeve and is provided with a top plate 25, a firing pin 31 which is arranged in the ejector sleeve 11 and the needle cylinder 21, a striking hole 26 which is arranged in the middle of the top plate 25 and is used for the firing pin 31 to penetrate out, an annular shoulder 33 which is fixedly sleeved in the middle of the firing pin 31 and has a radial dimension smaller than that of the needle cylinder, an ejector spring 32 which is sleeved in the firing pin 31 and one end of which pushes the bottom surface of the annular shoulder 33 to drive the firing pin 31 to extend forwards, a side slot 22 which is arranged on one side of the needle cylinder 21 and extends to the bottom end, an ejector base 39 which supports the other end of the ejector spring 32 and has two sides different in height so as to enable the ejector spring 32 and the annular shoulder 33 to deflect towards the side slot 22, a pushing table 23 which is arranged on the inner side of the top of the side slot and can push the annular shoulder 33 to push the partial edge of the annular shoulder 33, a side face of the ejector sleeve 23 which is arranged on the side of the side slot, a side face of the ejector sleeve 11 and corresponds to the side of the side slot 22 so as to push the side face of the annular shoulder 33 to make the side face of the annular shoulder 33 to be separated from the pushing table 23 and enable the ejector spring to be separated from the triggering shoulder 31 to push the ejector spring 31 to push the ejection cap to be arranged in front of the side of the ejection sleeve 11 and the side of the ejection sleeve 15, and the ejection cap 15 is arranged on the bottom of the side of the ejector sleeve 15, which can be pushed back towards the end of the ejector sleeve 11 and the end of the ejector sleeve 15. When in use, the front end surface of the needle cylinder 21 is propped against the glass surface, the needle cylinder 21 is continuously pushed forward with force, at the moment, the needle cylinder 21 is retracted backwards, the annular shoulder 33 and the firing pin 31 are driven to retract through the pushing and pressing table 23, and the ejection spring 32 is compressed to accumulate elastic potential energy; in the process of retreating the annular shoulder 33, the inclined shoulder 13 is triggered to generate radial pushing action on the annular shoulder 33 through the side slot 22, and the firing pin 31 is righted and centered; when the radial pushing distance is larger than the radial pushing width of the pushing platform 23, the annular shoulder 33 breaks away from the blocking of the pushing platform 23, and under the jacking of the ejection spring 32, the ejection spring 32 is exploded out by the energy accumulated by compression to push the firing pin 31 to perform forward ejection, and the sharp front end of the firing pin 31 is ejected forward through the striking hole 26 to impact glass. In the pushing process, the return spring 16 is compressed at the same time to accumulate elastic potential energy, and after the impact window breaker is retracted to leave the glass window, the needle cylinder 21 is pushed by the return spring 16 at the bottom end to extend forwards, and the limit needle cap 35 of the firing pin 31 is blocked by the limit of the bottom hole 15, so that the needle cylinder 21 is retracted relatively; when the table surface of the pushing platform 23 passes over the top surface of the annular shoulder 33, the annular shoulder 33 transmits jacking force perpendicular to the connecting line direction of the two sides of the ejection base 39 through the ejection spring 32 under the action of the inclination or the step height fall of the ejection base 39, so that the annular shoulder 33 and the firing pin 31 deflect towards the side slot 22 and lean against the inner wall of the ejection seat cover 11. At this time, if the glass window is not broken, the triggering impact can be continuously and rapidly performed. Wherein the diameter of the shoulder 33 is greater than the diameter of the strike hole 26 to facilitate blocking the forward travel of the striker 31. The radial thickness of the shoulder 33 is greater than the radial distance from the strike hole 26 to the inside wall of the barrel 21 so that the striker 31 can avoid the top plate 25 to collide out of the strike hole 26, avoiding the effect of resistance or friction to reduce the striking impact of the striker 31. The striker 31 and the shoulder 33 have a margin in the ejection seat 11 and the cylinder 21, allowing the shoulder 33 and the striker 31 to have a slightly larger dimensional deviation, and the ejection spring 32 is selected to be stronger so as to generate a larger impact force without affecting the relevant components. The striker 31 is disposed obliquely so that the requirements for the association and balance between the members are not high, and the processing difficulty is low.

Preferably, as shown in fig. 1, 2, 3, 5, 6 and 7, the periphery of the ejection seat cover 11 is provided with a front cover 52 and a rear cover 53 which can be assembled and installed into an outer shell 51, and the front side and the rear side of the ejection seat cover 11 are separated and fixedly connected with the front cover 52 and the rear cover 53 respectively into a whole, so that a user can conveniently hold the outer shell 51 for operation, and two parts of the ejection seat cover 11 are integrally formed with the front cover 52 and the rear cover 53 respectively, thereby reducing the number of components. A tongue piece 61 which extends from the bottom end and can be matched and inserted into the automobile safety belt buckle is arranged between the front cover 52 and the rear cover 53, the front cover 52 or the rear cover 53 is provided with a positioning block 56, and the tongue piece 61 is provided with a positioning notch 65 matched with the positioning block 56, so that the tongue piece 61 and the outer shell 51 can be fixedly arranged, and the tongue piece is not telescopic and is convenient to insert into the automobile safety belt buckle. The device is inserted in a fixed place, is convenient for quick acquisition, and avoids the condition that the storage position is hidden and needs to be found everywhere.

Preferably, as shown in fig. 6, 7, 8, 9, 10, 11, 13 and 14, a guiding slide block 18 is disposed in the ejection seat 11, a sliding groove 28 adapted to the guiding slide block 18 is disposed on an outer side surface of the syringe 21, and the guiding slide block 18 moves along the sliding groove, so that the syringe 21 is telescopically mounted in the outer casing 51 and is matched with the ejection seat 11, and the two are adapted. The cylinder 21 can be retracted when the front end of the cylinder 21 is pressed, and the cylinder 21 naturally extends under the action of the return spring 16 when the external pressure is released.

Preferably, as shown in fig. 6, 8, 10 and 14, the inner side of the ejection seat 11 is provided with a side sliding groove 19, and the outer side of the syringe 21 is provided with a non-slip buckle 29 which is matched with the side sliding groove 19 and limits the extending distance of the syringe 21. The distance that the reset spring 16 pushes the lower needle cylinder 21 to extend forwards is limited by the limiting positions of the sliding groove 28 and the guide sliding block 18, when the reset spring extends to the maximum distance, the side sliding groove 19 of the ejection seat sleeve 11 and the non-sliding buckle 29 on the outer side of the needle cylinder 21 are just in a blocking state, so that at least three positions are limited, the needle cylinder 21 is in a stable and non-skew state, and the needle cylinder is prevented from being locked in the ejection seat sleeve 11 in a self-locking way.

Preferably, as shown in fig. 2, 3, 6, 8 and 12, the upper ends of the front cover 52 and the rear cover 53 are clamped with a middle jacket 81, a jacket hole 82 capable of surrounding the ejection seat jacket portion of the syringe 21 is arranged in the middle of the middle jacket 81, the jacket hole 82 surrounds and protects the syringe 21 which is naturally stretched out, so as to avoid damage to surrounding objects caused by impact, and especially, the child can take and play without impacting parts in the vehicle accidentally under non-unexpected conditions.

Preferably, the two sides of the outer housing 51 are provided with a socket 58 and a concave position 59 positioned on the upper side of the socket 58, the middle sheath 81 is provided with a gear shaping 88 which can be inserted into the socket 58 in an adapting way and a convex buckle 89 which is matched with the concave position 59, so that the convex buckle 89 is positioned at the concave position 59 exactly when the gear shaping 88 is inserted into the socket 58, a stable connection is formed, the disassembly is not easy, and the accidental influence caused by unexpected falling is not caused; the middle sheath 81 is provided with an end protecting cover 91 capable of covering the sleeve hole 82, the middle sheath 81 is provided with a slot 85 positioned below the outer side of the convex buckle, and the end protecting cover 91 is provided with an inserting lug 95 capable of being inserted into the slot 85. The middle sheath 81 is provided with a pin hole 86, and the end protecting cover 91 is internally provided with a pin 96 matched with the pin hole 86, so that the end protecting cover 91 is fixedly connected with the middle sheath 81 and is not easy to fall off, and the end protecting cover 91 further protects the sleeve hole 82 and the needle cylinder 21, and the disassembling difficulty is increased.

Preferably, the length of the striker 31 is greater than the height of the ejector sleeve 11 so that the front end thereof can extend out of the top opening of the ejector sleeve 11, and thus when the needle cylinder 21 is compressed to the point that the striker 31 ejects, the striker 31 can extend out of the striking hole 26 to impact the outer glass, and after the needle cylinder 21 is compressed a certain distance, the striker 31 is triggered, otherwise, the striker 31 cannot eject out of the striking hole 26 to cause impact failure if the striker 21 is triggered prematurely; the radial offset of the trigger shoulder 13 is greater than the radial thickness of the push table 23. While the tangent value of the inclination of the triggering ramp 13 is greater than the ratio of the radial blocking dimension of the pushing table to the axial height of the collar so that the pushing table 23 can push the collar 33 apart without failing.

Preferably, the ejection seat 11 and the needle cylinder 21 enclose a needle cavity capable of accommodating the firing pin 31, the annular shoulder 33 and the ejection spring 32, so that the firing pin 31 can be completely retracted into the needle cavity for protection; when the needle cylinder 21 is fully extended, the needle chamber has a height greater than the maximum length of the striker 31 in the needle chamber and the bottom surface of the pushing table 23 is higher than the top surface of the shoulder 33, so that the striker 31 and the shoulder 33 can be laterally offset to the side slot 22, and the pushing table 23 is also separated from the shoulder 33 without obstructing the rapid return of the shoulder 33 and the striker 31 to the inclined position, so that the impact operation can be performed again, and the impact can be continuously performed.

Preferably, a relief groove 55 for the striker 31 and its limit cap 35 to retract is provided in the outer housing 51 at the lower side of the ejection seat, so that the striker 31 can be compressed and retracted to form a state of preliminary ejection impact.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims (9)

1. An impact window breaker, which is characterized in that: the ejector comprises an ejector sleeve with an opening at the top, a needle cylinder which can axially slide in the ejector sleeve and can extend out of the ejector sleeve and is provided with a top plate, a firing pin which is arranged at the front end in the ejector sleeve and the needle cylinder and is provided with a limit needle cap at the rear end, a striking hole which is arranged at the middle part of the top plate and is used for the firing pin to penetrate out, an annular shoulder which is fixedly sleeved at the middle part of the firing pin and has a radial size smaller than that of the hollow of the needle cylinder, an ejector spring which is sleeved at the firing pin and one end of which pushes the annular shoulder to drive the firing pin to extend forwards, a side slot which is arranged at one side of the needle cylinder and extends to the bottom end, an ejector base which supports the other end of the ejector spring and has the difference of heights at the two sides, a pushing platform which is positioned at the top of the side slot and can push the partial edge of the deflected annular shoulder to push the annular shoulder axially backwards, a triggering inclined shoulder which is arranged at the inner side of the ejector sleeve and corresponds to the side slot position to push the side surface of the annular shoulder to separate from the pushing platform and make the firing pin from the inclined triggering shoulder in the side slot, a reset spring which is positioned at one end of the ejector sleeve and pushes the bottom end of the ejector sleeve to drive the bottom end to extend axially forwards and is arranged at the bottom of the needle cylinder and extends to the bottom of the ejector sleeve and can block the firing pin from the limit needle hole.

2. The impact window breaker of claim 1, wherein: the periphery of the ejection seat sleeve is provided with a front cover and a rear cover which can be assembled and installed into an outer shell, a tongue piece which extends from the bottom end and can be matched and inserted into an automobile safety belt buckle is installed between the front cover and the rear cover, the front cover or the rear cover is provided with a positioning block, and the tongue piece is provided with a positioning notch matched with the positioning block.

3. The impact window breaker according to claim 2, wherein: the ejection seat sleeve is internally provided with a guide sliding block, and the outer side surface of the needle cylinder is provided with a sliding groove matched with the guide sliding block.

4. A window breaker according to claim 3, wherein: the inner side of the ejection seat sleeve is provided with a side sliding groove, and the outer side of the needle cylinder is provided with a non-slip buckle which is matched with the side sliding groove and limits the extending distance of the needle cylinder.

5. The impact window breaker according to claim 2, wherein: the upper ends of the front cover and the rear cover are clamped with a middle sheath, and the middle part of the middle sheath is provided with a sleeve hole which can surround the part of the needle cylinder extending out of the ejection seat sleeve.

6. The impact window breaker of claim 5, wherein: the two sides of the outer shell are provided with a socket and a concave position positioned at the upper side of the socket, and the middle sheath is provided with a gear shaping which can be inserted into the socket in an adapting way and a convex buckle which is matched with the concave position; the middle sheath is provided with an end protecting cover capable of covering the trepanning, the middle sheath is provided with a slot positioned below the outer side of the convex buckle, and the end protecting cover is provided with an inserting lug capable of being inserted into the slot.

7. The impact window breaker of claim 1, wherein: the length of the firing pin is larger than the height of the ejection seat sleeve, so that the front end of the firing pin can extend out of the top opening of the ejection seat sleeve; the radial offset of the triggering inclined shoulder is larger than the radial thickness of the pushing platform.

8. The impact window breaker of claim 1, wherein: the ejection seat sleeve and the needle cylinder enclose a needle cavity capable of accommodating the firing pin, the annular shoulder and the ejection spring; when the needle cylinder is fully extended, the height of the needle cavity is larger than the maximum length of the firing pin in the needle cavity, and the bottom surface of the pushing platform is higher than the top surface of the annular shoulder.

9. The impact window breaker according to claim 2, wherein: and a yielding groove for the striker and the limiting needle cap to retreat is formed in the outer shell, and the yielding groove is positioned at the lower side of the ejection seat sleeve.