A multifunctional safety hammer for laminated glass

Abstract

The utility model discloses a multifunctional safety hammer for laminated glass relates to the field of automobile safety instrument. The safety hammer includes handle and hammer head, and the front end of hammer head is equipped with the taper tip, and the overturn cutting part is rotatably arranged on the hammer head through the pivot, and the torsional spring is equipped between the overturn cutting part and the hammer head, and the side away from the taper tip of overturn cutting part is equipped with the blade mouth and / or the hook part, the handle top is fixed with the connecting seat, and one side of connecting seat is equipped with the pivot joint lug plate, and one side of hammer head is equipped with the pivot joint part, and the pin shaft passes through the pivot joint lug plate and pivot joint part and rotates the connection of hammer head and connecting seat, and the locking mechanism is equipped between connecting seat and hammer head, is used for locking hammer head when hammer head is in the unfolded working condition, and the locking mechanism can be manually unlocked to make hammer head rotate and fold. The utility model discloses the efficient breakage of laminated glass is realized, and the hammer head can be folded and stored, is convenient for carrying, and the simple structure is convenient to operate, is applicable to the emergency escape of car.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety equipment, specifically to a safety hammer for laminated glass. Background Technology

[0002] With the development of the automotive industry, especially the pursuit of ultimate quietness and safety in new energy vehicles, double-layered laminated glass has been widely used in windshields and side windows due to its excellent sound insulation, heat insulation, and impact resistance. Double-layered laminated glass is typically composed of two layers of tempered glass bonded together with a layer of high-strength polyvinyl butyral (PVB) or ionic interlayer (SGP) film. The PVB film has excellent toughness; when the glass breaks due to external impact, the fragments are firmly held together by the film and will not detach and scatter.

[0003] However, this composite structure presents new challenges in emergency escape scenarios. Currently, the design principle of mainstream car window breakers (such as impact-type safety hammers) is mainly based on the stress characteristics of ordinary tempered glass: using a sharp hammer head made of hard alloy to generate extremely high local pressure in an instant, causing the stress balance of the tempered glass to be disrupted and the glass to shatter as a whole. However, when such window breakers are used to strike double-layered laminated glass, although they can shatter the inner and outer tempered glass layers, the PVB or SGP interlayer film, due to its extremely high toughness and tensile strength, can still effectively adhere the glass fragments on both sides, forming a "flexible mesh barrier" that, although broken, still maintains structural integrity. This barrier cannot detach automatically and is difficult to tear by hand, making it impossible to quickly create an opening large enough for passengers to escape, seriously delaying the escape opportunity.

[0004] To address the aforementioned issues, utility model patent CN223787958U proposes a window breaker for double-layered laminated glass. This design features a beveled and serrated structure on the hammer head, utilizing the lever principle of the beveled surface to further cut the interlayer film after breaking the glass. However, in this solution, the beveled and serrated structure is fixed to the hammer head surface, requiring high processing precision and a certain level of user proficiency, and also presenting significant manufacturing challenges.

[0005] A proposed improvement in document CN122058306A involves a rotating, flipping cutting component on the hammer head, driven by a torsion spring. This component automatically unfolds after passing through the glass, and upon retraction, cuts and breaks the glass and adhesive film using its blade and / or hook, effectively solving the manufacturing difficulty of fixed cutting structures. However, in this design, the hammer head is fixedly connected to the handle, resulting in a non-foldable rod-like structure. The inclusion of the flipping cutting component, torsion spring, rotating shaft, and its housing on the hammer head significantly increases its axial length compared to ordinary safety hammers, further increasing its overall length. This makes it inconvenient to store in small spaces such as car door storage compartments or boxes, hindering its portability and posing a risk of accidental injury.

[0006] Therefore, how to provide a safety hammer that can efficiently cut the interlayer film of laminated glass, is easy to store and carry, and has a simple structure and is easy to process has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0007] The present invention aims to provide a safety hammer that can efficiently cut the interlayer film of laminated glass, and can be easily stored and operated by folding the hammer head. It is simple in structure and convenient in operation.

[0008] The technical solution adopted by this utility model is as follows: a multi-functional safety hammer for laminated glass, including a handle and a hammer head, the front end of the hammer head is provided with a cone tip, a flip-cutting component is rotatably provided on the hammer head via a rotating shaft, a torsion spring is provided between the flip-cutting component and the hammer head for driving the flip-cutting component to rotate toward the cone tip, and a cutting edge and / or hook is provided on the side of the flip-cutting component away from the cone tip.

[0009] A connecting seat is fixedly connected to the top of the handle. One side of the connecting seat has an outwardly protruding pivot lug. One side of the hammer head has a pivot portion that mates with the pivot lug. A pin passes through the pivot lug and the pivot portion to rotatably connect the hammer head to the connecting seat. A locking mechanism is provided between the connecting seat and the hammer head. The locking mechanism includes a movable engaging member and a engaging seat that mates with the engaging member. The engaging member has a locked position and an unlocked position: in the locked position, the engaging member engages with the engaging seat to lock the hammer head in an unfolded working state; in the unlocked position, the engaging member disengages from the engaging seat to allow the hammer head to rotate.

[0010] Further, the locking mechanism includes: a retaining ring fixedly disposed on the side of the hammer head near the connecting seat; a slot formed on the connecting seat, into which the retaining ring is inserted when the hammer head is in the unfolded working state; a locking cover plate, the locking cover plate being rotatably connected to the connecting seat via a pivot, and the locking cover plate covering the slot, the side of the locking cover plate near the hammer head having a locking hook that cooperates with the retaining ring, and the side of the locking cover plate away from the hammer head having a spring between it and the connecting seat, the spring applying an elastic force to the locking cover plate to keep the locking hook engaged with the retaining ring; the locking mechanism has a locked state and an unlocked state: in the locked state, the locking hook is engaged with the retaining ring to restrict the rotation of the hammer head; in the unlocked state, by pressing the side of the locking cover plate with the spring, the locking cover plate is rotated against the elastic force of the spring, thereby disengaging the locking hook from the retaining ring.

[0011] Furthermore, a limiting boss is provided in the slot. When the locking hook side of the locking cover rotates downward to a preset position, the locking cover abuts against the limiting boss to restrict the locking hook side from continuing to rotate downward.

[0012] Furthermore, the connecting seat has a first mating plane on the side facing the hammer head, and the hammer head has a second mating plane on the side facing the connecting seat. When the hammer head is in the unfolded working state, the first mating plane and the second mating plane fit together. The pivot part is located at the lower part of the hammer head, so that the hammer head can rotate and fold downward around the pin axis in the direction of the handle, and when the hammer head rotates upward, the fitting of the first mating plane and the second mating plane limits the hammer head to continue rotating upward.

[0013] Furthermore, the handle includes a rubber part and a metal part embedded in the rubber part, and the connecting seat and the metal part are fastened together by bolts.

[0014] Furthermore, the metal part is a pipe, the upper end of the metal part is provided with an internal thread, the connecting seat is provided with a through hole, and the bolt passes through the through hole and connects with the internal thread.

[0015] Furthermore, the bottom of the connecting seat is provided with a positioning post, and the upper end of the handle is provided with a positioning hole corresponding to the positioning post, and the positioning post is inserted into the positioning hole.

[0016] Furthermore, the bottom of the grip is provided with an LED, a switch and a charging interface, and a battery is provided inside the grip. The battery is electrically connected to the LED, the switch and the charging interface.

[0017] Furthermore, the hammer head is provided with a groove, and when the flipping cutter is in the retracted position, the flipping cutter is received in the groove.

[0018] Furthermore, the hammer head is provided with a limiting part to limit the unfolding angle of the flipping cutting part; the limiting part is a step provided on the hammer head, and when the flipping cutting part is rotated to the unfolded position, the flipping cutting part abuts against the step.

[0019] Furthermore, the pin and the pivot lug or the pivot portion are damped, so that the rotational connection between the hammer and the connecting seat is damped.

[0020] Furthermore, the buckle is provided with a first inclined surface, and the locking hook is provided with a second inclined surface that cooperates with the first inclined surface; when the hammer head rotates to the unfolded working state, the buckle rotates with the hammer head, the first inclined surface and the second inclined surface abut against each other and slide relative to each other, pushing the locking cover plate to rotate against the elastic force of the spring, so that the buckle enters the slot; when the buckle is fully entered into the slot, the locking hook automatically engages with the buckle under the elastic force of the spring, realizing automatic locking.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) Based on the prior application of the flip-cutting component structure, this utility model provides a connecting seat at the top of the handle and a pivotal lug and pivotal part between the connecting seat and the hammer head, which allows the hammer head to rotate and fold around the pin axis in the direction of the handle. This effectively reduces the overall length and volume of the safety hammer when not in use, making it easy to store in small spaces such as car door storage compartments and storage boxes, and significantly improving portability. At the same time, the automatic unfolding structure driven by the torsion spring is completely retained, and it can still unfold automatically after penetrating the laminated glass, efficiently cutting the intermediate film through the blade and / or hook, thus taking into account the functional requirements of emergency escape.

[0023] (2) This utility model achieves reliable locking of the hammer head in the working state through a locking mechanism. The user only needs to press the spring side of the locking cover with one hand to unlock it. The operation is intuitive and convenient, and the unlocking and folding operations can be completed quickly even in emergency situations or dark environments. Compared with the folding tools in the prior art that use threaded locking or complex buckle structures, the locking mechanism of this utility model is simpler to operate and unlocks faster, making it more suitable for emergency escape scenarios. At the same time, the locking cover automatically resets and locks under the action of the spring, without the need for additional operation by the user, further reducing the operating threshold.

[0024] (3) This utility model, through the planar fit limiting structure between the connecting seat and the hammer head (the first and second fit planes are in contact with each other in the unfolded state), combined with the double limiting effect of the locking mechanism, effectively prevents the hammer head from accidentally rotating or loosening due to impact force during use, ensuring structural stability and transmission efficiency during window breaking operations. The locking hook of the locking cover plate cooperates with the buckle on the hammer head for reliable locking; the limiting boss set in the groove can limit the excessive rotation of the locking hook side of the locking cover plate, further improving the stability of the product.

[0025] (4) The folding structure of this utility model involves only a few parts such as connecting seat, pin and locking mechanism. The parts are regular in shape, easy to process and easy to assemble, and suitable for mass production. Compared with the existing technology of processing complex cutting structures on the surface of hammer head, the manufacturing cost of this utility model is significantly reduced, which is conducive to the market promotion and popularization of the product.

[0026] (5) The handle of this utility model adopts an integrated structure in which the rubber part and the internal metal parts are embedded and formed. Only the key metal parts are retained as the force-bearing skeleton, which greatly reduces the amount of metal materials used. Compared with the all-metal handle, the overall weight is significantly reduced, which makes it easier to carry and hold, and helps to reduce the fatigue of users when swinging the hammer. The connecting seat is fastened to the metal parts by bolts. The positioning pin is inserted into the positioning hole at the upper end of the handle to achieve circumferential positioning, which ensures the connection strength between the handle and the connecting seat. It can withstand the impact load generated by repeated hammering and effectively prevent the handle and the connecting seat from loosening or relative rotation. At the same time, the rubber part provides a good grip and has anti-slip and shock absorption effects, which improves the comfort and safety of use.

[0027] (6) This utility model integrates an LED, a switch, a charging interface, and a battery at the bottom of the handle, providing illumination for the user in low-visibility environments such as at night, and assisting in accurately locating the window breaking point and operating the locking mechanism. At the same time, this illumination function can also be used as an emergency flashlight, expanding the application scenarios of the safety hammer and improving the practical value of the product. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the assembly relationship of this utility model.

[0030] Figure 3 This is a partial exploded view of the present invention.

[0031] Figure 4 This is a three-dimensional schematic diagram of the hammer head flipping and cutting component of this utility model in the retracted position.

[0032] Figure 5 This is a bottom view of the connector of this utility model.

[0033] Figure 6 This is a schematic diagram of the overall structure of the hammer head in the folded state of this utility model.

[0034] In the diagram: 1. Handle; 101. LED bead; 102. Switch; 103. Charging interface; 104. Metal part; 105. Positioning hole; 106. Rubber part; 2. Connecting seat; 201. Pivot ear plate; 202. Groove; 203. Limiting boss; 204. Through hole; 205. Positioning post; 206. First mating plane; 3. Hammer head; 301. Groove; 302. Pivot part; 303. Buckle; 304. Second mating plane; 305. Step; 4. Cone tip; 5. Flipping cutting part; 6. Torsion spring; 7. Locking cover plate; 701. Locking hook; 8. Spring. Detailed Implementation

[0035] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0036] Example 1

[0037] like Figures 1 to 6 As shown, this embodiment provides a safety hammer for laminated glass, including a handle 1, a connecting seat 2, and a hammer head 3.

[0038] like Figure 1 As shown, the hammer head 3 has a conical tip 4 at its front end for striking laminated glass to shatter the inner and outer tempered glass layers. A flip-cutting component 5 is rotatably mounted on the hammer head 3 via a pivot. A torsion spring 6 is provided between the flip-cutting component 5 and the hammer head 3, driving the flip-cutting component 5 to rotate towards the conical tip 4. The flip-cutting component 5 has a cutting edge and / or hook on the side away from the conical tip 4, used to hook and pull the broken glass and interlayer film during pullback. The hammer head 3 has a groove 301; when the flip-cutting component 5 is in the retracted position, it is housed within the groove 301, reducing resistance when penetrating the broken glass. The hammer head 3 also has a limiting part to restrict the unfolding angle of the flip-cutting component 5; in this embodiment, the limiting part is a step 305 on the hammer head 3, which abuts against the step 305 when the flip-cutting component 5 rotates to the unfolded position.

[0039] like Figure 1 and Figure 3As shown, a connecting seat 2 is fixedly connected to the top of the handle 1. Specifically, the handle 1 includes a rubber part 106 and a metal part 104 embedded in the rubber part 106. The connecting seat 2 and the metal part 104 are fastened together by bolts. More specifically, the metal part 104 is a tubular component, and its upper end is provided with an internal thread. The connecting seat 2 is provided with a through hole 204, through which the bolt passes and connects to the internal thread. A positioning post 205 is also provided at the bottom of the connecting seat 2. The upper end of the handle 1 is provided with a positioning hole 105 corresponding to the positioning post 205. The positioning post 205 is inserted into the positioning hole 105 to achieve circumferential positioning between the connecting seat 2 and the handle 1, preventing relative rotation. The handle 1 adopts an integrated structure in which the rubber part 106 and the internal metal part 104 are embedded and formed. Only the key metal part 104 is retained as the force-bearing skeleton, which greatly reduces the amount of metal material used. Compared with an all-metal handle, the overall weight is significantly reduced, making it easy to carry and hold for a long time. At the same time, the rubber part 106 provides a good grip and has anti-slip and shock-absorbing effects.

[0040] like Figure 2 and Figure 3 As shown, the connecting seat 2 has an outwardly protruding pivot lug 201 on one side, and the hammer head 3 has a pivot portion 302 on one side that cooperates with the pivot lug 201. A pin passes through the pivot lug 201 and the pivot portion 302 to rotatably connect the hammer head 3 to the connecting seat 2, allowing the hammer head 3 to rotate and fold around the pin in the direction of the handle 1. Preferably, the pin and the pivot lug 201 or the pivot portion 302 are damped, so that the rotational connection between the hammer head 3 and the connecting seat 2 has an appropriate damping force. In the folded state, the hammer head 3 can remain in the folded position and will not naturally rotate and unfold due to gravity or vibration, improving the stability of the storage state and the safety of carrying.

[0041] like Figure 2 As shown, the connecting seat 2 has a first mating plane 206 on the side facing the hammer head 3, as... Figure 4 As shown, the hammer head 3 has a second mating plane 304 on the side facing the connecting seat 2. When the hammer head 3 is in the unfolded working state, the first mating plane 206 and the second mating plane 304 are in contact with each other (see...). Figure 1 The pivot portion 302 is located at the lower part of the hammer head 3, allowing the hammer head 3 to rotate and fold downwards about the pin axis towards the handle 1 (e.g., Figure 4 As shown in the figure, when the hammer head 3 rotates upward, the first mating plane 206 and the second mating plane 304 fit together and limit the hammer head 3 to continue rotating upward, thereby ensuring that the hammer head 3 is accurately positioned at an angle when it is in the unfolded working state.

[0042] like Figure 2 and Figure 3 As shown, a locking mechanism is provided between the connecting seat 2 and the hammer head 3. The locking mechanism is used to lock the hammer head 3 when it is in the unfolded working state, and the locking mechanism can be manually unlocked to allow the hammer head 3 to rotate and fold. Specifically, the locking mechanism includes a buckle 303, a slot 202, and a locking cover plate 7.

[0043] The retaining ring 303 is fixedly disposed on the side of the hammer head 3 near the connecting seat 2. The slot 202 is formed on the connecting seat 2, and when the hammer head 3 is in the unfolded working state, the retaining ring 303 is inserted into the slot 202. The locking cover plate 7 is rotatably connected to the connecting seat 2 via a pivot, and the locking cover plate 7 covers the slot 202. The side of the locking cover plate 7 near the hammer head 3 is provided with a locking hook 701 that cooperates with the retaining ring 303, and the side of the locking cover plate 7 away from the hammer head 3 is provided with a spring 8 between it and the connecting seat 2. The spring 8 applies an elastic force to the locking cover plate 7 to keep the locking hook 701 engaged with the retaining ring 303.

[0044] Preferably, the buckle 303 has a first inclined surface, and the locking hook 701 has a second inclined surface that cooperates with the first inclined surface. When the hammer head 3 rotates from the folded state to the unfolded working state, the buckle 303 rotates with the hammer head 3, and the first inclined surface and the second inclined surface abut and slide relative to each other, pushing the locking cover plate 7 to rotate against the elastic force of the spring 8, so that the buckle 303 enters the slot 202; when the buckle 303 is fully inserted into the slot 202, the locking hook 701 automatically engages with the buckle 303 under the elastic force of the spring 8, realizing automatic locking. This automatic locking structure allows the user to complete the locking operation without manually pressing the locking cover plate 7, making it more convenient to use.

[0045] The locking mechanism has a locked state and an unlocked state: in the locked state, the locking hook 701 is engaged in the buckle 303 to restrict the rotation of the hammer head 3; in the unlocked state, by pressing the side of the locking cover plate 7 where the spring 8 is located, the locking cover plate 7 is rotated against the elastic force of the spring 8, thereby causing the locking hook 701 to disengage from the buckle 303, and the hammer head 3 can rotate and fold.

[0046] like Figure 3As shown, a limiting boss 203 is provided in the slot 202. When the locking hook 701 side of the locking cover 7 rotates downward to a preset position, the locking cover 7 abuts against the limiting boss 203 to restrict the locking hook 701 side from continuing to rotate downward. This limiting boss 203 can prevent the locking cover 7 from rotating excessively during the unlocking operation, thus improving the stability of the product.

[0047] like Figure 1 As shown, the bottom of the handle 1 is provided with an LED 101, a switch 102, and a charging interface 103. A rechargeable battery is housed within the handle 1, and the battery is electrically connected to the LED 101, the switch 102, and the charging interface 103. The LED 101 can be used for illumination assistance in low-visibility environments such as at night, facilitating accurate location of window breaking points and operation of the locking mechanism; it can also be used as an emergency flashlight, expanding the application scenarios of the safety hammer.

[0048] Working principle

[0049] like Figure 1 and Figure 4 As shown, during normal use, the hammer head 3 is rotated around the pin to the unfolded working state, which is basically perpendicular to the handle 1. During this process, the retaining ring 303 rotates with the hammer head 3 and inserts into the slot 202. The first inclined surface on the retaining ring 303 abuts against and slides relative to the second inclined surface on the locking hook 701, pushing the locking cover 7 to rotate and move out of position against the elastic force of the spring 8. When the retaining ring 303 is fully inserted into the slot 202, the locking hook 701 automatically engages with the retaining ring 303 under the elastic force of the spring 8, locking the hammer head 3 in the unfolded working state. At the same time, the first mating plane 206 on the connecting seat 2 and the second mating plane 304 on the hammer head 3 fit together, achieving double limiting together with the locking mechanism to ensure the stability of the hammer head 3 during window breaking operations.

[0050] The user holds the handle 1 and strikes the laminated glass with the cone tip 4, shattering the inner and outer tempered glass layers. Then, the user pushes the front end of the hammer head 3 into the shattered area. During this process, the flipping cutter 5 is compressed by the glass, overcoming the elastic force of the torsion spring 6, and fits snugly into the groove 301. Once the flipping cutter 5 has completely passed through the glass, it loses the obstruction of the glass, and the torsion spring 6 drives the flipping cutter 5 to automatically spring back around the axis towards the cone tip 4 until it abuts against the step 305 (see [link]). Figure 4 The device reaches the unfolded position. The user then pulls back the handle 1, flips the cutting edge and / or hook on the cutting part 5 to hook and pull the broken glass and the interlayer film, thereby quickly forming an escape hole.

[0051] After use, press the side of the locking cover 7 with the spring 8 to make the locking cover 7 rotate against the elastic force of the spring 8, and the locking hook 701 disengages from the buckle 303, thus releasing the lock; then rotate the hammer head 3 downwards around the pin axis toward the handle 1 and fold it so that the hammer head 3 is folded into one side of the handle 1 (as shown). Figure 6 As shown in the diagram, it can be safely stored and carried. In the folded state, the damping at the pin keeps the hammer head 3 in the folded position and will not unfold naturally due to vibration or shaking.

[0052] If it is necessary to use it in a dark environment, the LED 101 can be turned on by switch 102 to provide illumination.

[0053] Example 2

[0054] The difference between this embodiment and Embodiment 1 is that in this embodiment, the handle 1 is equipped with a cutting device for cutting seat belts. The cutting device includes a guide groove for guiding and securing the seat belt, and a cutting blade is provided on the inner side of the guide groove. When a passenger is entangled in the seat belt and cannot escape, the seat belt can be inserted into the guide groove, and the seat belt can be pulled along the direction of the guide groove. The cutting blade will then cut it off, further improving the practicality and operational safety of the safety hammer in various emergency scenarios. The remaining structure is the same as in Embodiment 1 and will not be described again here.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multifunctional safety hammer for laminated glass, comprising a handle (1) and a hammer head (3), wherein the front end of the hammer head (3) is provided with a conical tip (4), and a flipping cutter (5) is rotatably disposed on the hammer head (3) via a rotating shaft, wherein a torsion spring (6) is provided between the flipping cutter (5) and the hammer head (3) for driving the flipping cutter (5) to rotate toward the conical tip (4), and the side of the flipping cutter (5) away from the conical tip (4) is provided with a cutting edge and / or a hook; characterized in that: The top of the handle (1) is fixedly connected to a connecting seat (2). One side of the connecting seat (2) is provided with an outwardly protruding pivot lug (201). One side of the hammer head (3) is provided with a pivot part (302) that cooperates with the pivot lug (201). A pin passes through the pivot lug (201) and the pivot part (302) to rotatably connect the hammer head (3) to the connecting seat (2). A locking mechanism is provided between the connecting seat (2) and the hammer head (3). The locking mechanism includes a movable locking member and a locking seat that cooperates with the locking member. The locking member has a locked position and an unlocked position: In the locked position, the locking member engages with the locking seat to lock the hammer head (3) in the unfolded working state; In the unlocked position, the locking member disengages from the locking seat so that the hammer head (3) can rotate.

2. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that, The locking mechanism includes: A buckle (303) is fixedly installed on the side of the hammer head (3) near the connecting seat (2); A slot (202) is provided on the connecting seat (2). When the hammer head (3) is in the unfolded working state, the buckle (303) is inserted into the slot (202). A locking cover (7) is rotatably connected to the connecting seat (2) via a pivot, and the locking cover (7) covers the slot (202). The locking cover (7) has a locking hook (701) that cooperates with the buckle (303) on the side of the locking cover (7) away from the hammer (3). A spring (8) is provided between the locking cover (7) away from the hammer (3) and the connecting seat (2). The spring (8) applies an elastic force to the locking cover (7) to keep the locking hook (701) engaged with the buckle (303). The locking mechanism has a locked state and an unlocked state: in the locked state, the locking hook (701) is engaged in the buckle (303) to restrict the rotation of the hammer (3); in the unlocked state, by pressing the side of the locking cover plate (7) provided with the spring (8), the locking cover plate (7) is rotated against the elastic force of the spring (8), thereby causing the locking hook (701) to disengage from the buckle (303).

3. A multifunctional safety hammer for laminated glass according to claim 2, characterized in that: The slot (202) is provided with a limiting boss (203). When the locking hook (701) side of the locking cover (7) rotates downward to a preset position, the locking cover (7) abuts against the limiting boss (203) to restrict the locking hook (701) side from continuing to rotate downward.

4. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The connecting seat (2) has a first mating plane (206) on the side facing the hammer head (3), and the hammer head (3) has a second mating plane (304) on the side facing the connecting seat (2). When the hammer head (3) is in the unfolded working state, the first mating plane (206) and the second mating plane (304) fit together. The pivot part (302) is located at the lower part of the hammer head (3), so that the hammer head (3) can rotate and fold downward around the pin axis in the direction of the handle (1). When the hammer head (3) rotates upward, the fitting limit between the first mating plane (206) and the second mating plane (304) restricts the hammer head (3) from continuing to rotate upward.

5. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The handle (1) includes a rubber part (106) and a metal part (104) embedded in the rubber part (106), and the connecting seat (2) is fastened to the metal part (104) by bolts.

6. A multifunctional safety hammer for laminated glass according to claim 5, characterized in that: The metal part (104) is a pipe fitting. The upper end of the metal part (104) is provided with an internal thread. The connecting seat (2) is provided with a through hole (204). The bolt passes through the through hole (204) and connects with the internal thread.

7. A multifunctional safety hammer for laminated glass according to claim 5, characterized in that: The bottom of the connecting seat (2) is also provided with a positioning post (205), and the upper end of the handle (1) is provided with a positioning hole (105) corresponding to the positioning post (205), and the positioning post (205) is inserted into the positioning hole (105).

8. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The bottom of the handle (1) is provided with an LED bead (101), a switch (102) and a charging interface (103). The handle (1) contains a storage battery, which is electrically connected to the LED bead (101), the switch (102) and the charging interface (103).

9. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The hammer (3) is provided with a groove (301). When the flipping cutter (5) is in the retracted position, the flipping cutter (5) is received in the groove (301).

10. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The hammer head (3) is provided with a limiting part to limit the unfolding angle of the flipping cutting part (5); the limiting part is a step (305) provided on the hammer head (3), and when the flipping cutting part (5) is rotated to the unfolding position, the flipping cutting part (5) abuts against the step (305).

11. A multifunctional safety hammer for laminated glass according to claim 1, characterized in that: The pin is damped to the pivot lug (201) or the pivot part (302), so that the rotational connection between the hammer (3) and the connecting seat (2) is damped.

12. A multifunctional safety hammer for laminated glass according to claim 2, characterized in that: The buckle (303) has a first inclined surface, and the locking hook (701) has a second inclined surface that cooperates with the first inclined surface. When the hammer (3) rotates to the unfolded working state, the buckle (303) rotates with the hammer (3), and the first inclined surface and the second inclined surface abut and slide relative to each other, pushing the locking cover (7) to rotate against the elastic force of the spring (8), so that the buckle (303) enters the slot (202). When the buckle (303) is fully entered into the slot (202), the locking hook (701) automatically engages with the buckle (303) under the action of the elastic force of the spring (8), thereby achieving automatic locking.

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