CN216571269U - Locking mechanism and broken glass equipment - Google Patents

Abstract

The utility model relates to a locking mechanism and broken glass equipment, including bolt seat, bolt and elastomeric element, wherein, the bolt seat constructs the guiding channel who has the adaptation the bolt, the bolt is mobilizable to be retrained in the guiding channel, and constitute the sliding pair with the bolt seat, the bolt seat constructs first spacing portion, the bolt constructs the second spacing portion that has the adaptation the first spacing portion, elastomeric element is used for providing the bolt with the elasticity towards the bolt head end, under the effect of elasticity, second spacing portion card is in first spacing portion, and the front end of bolt extends guiding channel, is used for locking shielding part; the locking mechanism is simple and compact in structure and reasonable in design, can be used in cooperation with a shielding component, achieves the function that the shielding component is locked/unlocked, is convenient to operate, cannot be unlocked accidentally, and is high in reliability.

Description

Locking mechanism and broken glass equipment

Technical Field

The utility model relates to a broken glass technical field, concretely relates to locking mechanism and broken glass equipment.

Background

When a high-rise building has a fire, a high-rise spraying vehicle is needed to spray water into the high-rise building to cool and extinguish the fire and prevent the fire from continuously spreading, but the existing high-rise building is generally provided with a toughened glass curtain wall, a window and the like to isolate and block the outside, so that an external fire-fighting water column cannot be injected into a room; therefore, in the occasion of needing to destroy the glass, the glass breaking device special for the destroyed toughened glass curtain wall or the window is usually needed, the existing glass breaking device is usually structured with glass breaking power, and when the glass breaking device is used, the glass breaking power drives a glass breaking part (such as a glass breaking ball and the like) to be thrown out, so that the glass is broken by the glass breaking part, and the purpose of breaking the glass is achieved.

The conventional glass breaking equipment is generally provided with a ball storage mechanism, the ball storage mechanism is used for storing glass breaking pieces, and pre-tightening the stored glass breaking pieces by utilizing the pre-tightening force of a spring to prevent the glass breaking pieces from falling out of the ball storage mechanism; but the less the glass breaking pieces in the ball storage mechanism are, the smaller the pretightening force of the pressure spring is; in addition, operability in filling the broken glass pieces is also required to be considered, so that the pre-tightening force of the spring is not easy to be too large, otherwise, the broken glass pieces are not easy to be filled into the ball storage mechanism, and therefore, in the actual use process, the broken glass pieces are very easy to fall out of the ball storage mechanism when being subjected to impact load, and the reliability is poor; in order to solve the problem, the shielding component can be additionally arranged to shield the ball storage mechanism, and in order to enable the shielding component to be stably located in a state of shielding the ball storage mechanism, a corresponding locking mechanism is generally required to be arranged to lock/unlock the shielding component.

Disclosure of Invention

The utility model aims to solve and lack the locking structure among the current broken glass equipment, and current locking mechanism has the problem that use is inconvenient, the reliability is poor usually, provides a locking mechanism, not only can use with sheltering from the part cooperation, realizes that the locking unblock shelters from the function of part, and convenient operation can not appear the problem of unexpected unblock moreover, and the reliability is high, and the main design is:

a locking mechanism comprises a bolt seat, a bolt and an elastic component, wherein the bolt seat is provided with a guide channel matched with the bolt,

the bolt is movably restricted in the guide channel and forms a sliding pair with the bolt seat,

the bolt seat is provided with a first limit part, the bolt is provided with a second limit part which is matched with the first limit part,

the elastic component is used for providing elasticity towards the end of the bolt for the bolt, the second limiting part is clamped at the first limiting part under the action of the elasticity, and the front end of the bolt extends out of the guide channel and is used for locking the shielding component. In the scheme, the bolt and the bolt seat are constructed, and the bolt seat form a moving pair, so that the bolt can move relative to the bolt seat, and the problem of movable installation of the bolt is solved; the first limiting part and the second limiting part are constructed, and the first limiting part is matched with the second limiting part, so that the elasticity of the elastic component can be effectively balanced, the bolt can stably keep the state that the front end extends out of the guide channel under the condition of no external force, the bolt can be used for restraining and locking the shielding component, and the problem of reliably locking the shielding component is solved; and through setting up elastomeric element, not only make the bolt have for the degree of freedom of bolt seat removal, can realize the automatic re-setting function moreover to solve the problem of automatic locking, for current locking mechanism, this locking mechanism not only uses more conveniently, and the reliability is higher moreover.

In order to simplify the structure, preferably, the elastic member is an extension spring or a compression spring, and two ends of the extension spring or the compression spring are respectively connected to the bolt and the bolt seat.

For convenience of assembly, preferably, the guide channel adopts a stepped hole, the bolt adopts a stepped shaft matched with the stepped hole, the elastic part is sleeved on the bolt, and two ends of the elastic part are respectively constrained on a step formed at the reducing position of the stepped hole and a step formed at the reducing position of the stepped shaft. The elastic component is very convenient to mount and dismount.

In order to form the second limiting part, preferably, the second limiting part comprises a clamp spring groove constructed at the tail end of the plug pin and a clamp spring arranged in the clamp spring groove, the clamp spring is clamped at the end part of the guide channel under the action of the elastic component,

or the second limiting part is a boss constructed on the side surface of the bolt.

For adapting to the second limiting part, preferably, the first limiting part is an end part of the guide channel or a stop block arranged on the plug seat.

In order to realize that when the shielding part is closed, the shielding part is automatically locked by utilizing the extrusion force between the shielding part and the bolt, and furthermore, the front end of the bolt is provided with a guide inclined plane. In the process of closing the shielding part, when the shielding part rotates to the position contacting and colliding with the guide inclined plane, acting force along the direction from the head end of the bolt to the tail end of the bolt is generated in the bolt through the guide inclined plane, under the action of the acting force, the bolt can move towards the direction far away from the shielding part, the elastic potential energy of the elastic part is increased, the shielding part continues to rotate towards the direction close to the shell until the shielding part is attached to the shell, at the moment, the shielding part just breaks away from the bolt, the elastic potential energy of the elastic part is automatically released, so that the bolt is driven to move reversely, until the second limiting part is clamped at the first limiting part, the action is finished, at the moment, the bolt just restores to the initial position, and the shielding part is just locked between the bolt and the shell, the purpose of automatically locking the shielding part is achieved, and in the whole process, an operator does not need to manually pull the bolt, is very labor-saving and convenient.

In order to improve the reliability of the locking mechanism, further, the front end of the bolt is further configured with a locking plane for locking the shielding component, and the locking plane is configured on the side departing from the guide inclined plane. Through constructing the locking plane for in the use, the occlusion part remains 90 degrees throughout to the planar effort of locking and the contained angle of elastomeric element's elasticity, promptly, stroke pressure dead angle for under the impact force effect, the effort of occluding part can not influence elastomeric element all the time, thereby makes the occluding part be in the state by the locking all the time, thereby can show the stability and the reliability that improve this locking mechanical system.

In order to solve the problem of being convenient for install the bolt seat, further, the bolt seat is also provided with an installation surface, an installation part for realizing detachable installation is arranged in the installation surface, and the guide inclined surface is arranged on one side deviating from the installation surface. Not only is the installation of the bolt seat realized by the installation part convenient, but also the guide inclined plane is positioned at one side deviating from the installation surface, and the guide inclined plane is more convenient to be matched with the shielding part.

Preferably, the mounting part is a mounting hole or a mounting notch. So that the bolt seat can be detachably mounted by using fasteners such as bolts, screws and the like.

In order to maintain the orientation of the guide ramp and prevent the pin from rotating during use, it is preferred that the cross-section of the pin is non-circular and the cross-section of the guide channel is also non-circular;

and/or a strip-shaped limiting groove is further formed in the side face of the bolt, the limiting groove is distributed along the length direction of the bolt, a limiting pin is arranged on the bolt seat, and one end of the limiting pin is inserted into the limiting groove and matched with the limiting groove. By configuring the cross section of the bolt to be a non-circular cross section and the cross section of the guide channel matched with the non-circular cross section, after the bolt is installed in the guide channel in a matching way, the bolt can only move along the length direction of the guide channel and can not rotate relative to the guide channel; in addition, through the cooperation of spacer pin and spacing groove, play the effect of direction and restraint, also can prevent that the bolt from rotating in the use for the direction of direction inclined plane keeps unchangeable.

In order to facilitate an operator to pull the latch to unlock, further, a holding structure is arranged at the tail end of the latch, the holding structure comprises a handle, a pull ring or a pull rope,

or the holding structure comprises a through hole for connecting a pull ring or a pull rope. Through the structure of gripping, the operating personnel of being convenient for is exerting oneself to be convenient for operating personnel's more laborsaving pulling bolt unblock.

A glass breaking device, which comprises a shell, a protection mechanism and a locking mechanism, wherein,

the shell is configured with a ball filling hole communicated with the inside, the ball filling hole is used for passing through the glass breaking piece,

the protection mechanism comprises a shielding component which is movably connected to the outer side of the shell and used for closing/opening the ball filling hole,

the bolt seat is arranged on the shell, the bolt is matched with the shielding component, and the bolt is used for locking/unlocking the shielding component. In the scheme, the ball filling hole is formed in the shell and communicated with the inside, so that the ball filling hole is used for filling the broken glass piece into the ball storage position in the broken glass equipment; and through constructing protection mechanism and locking mechanism for in-service use in-process, can utilize protection mechanism to seal fill out the ball hole, both can play good waterproof and dustproof effect to the inside of broken glass equipment, can prevent effectively moreover that broken glass from falling out in the ball storage position of storing up ball mechanism, and locking mechanism can play locking protection mechanism's purpose, can prevent effectively that in the use, protection mechanism opens automatically and fills out the ball hole.

Preferably, the shielding member has a plate-like structure.

In order to improve the sealing effect, a sealing component is further arranged between the shielding component and the shell. So that the gap between the shielding member and the housing is eliminated by the sealing member to prevent water or dust from entering.

Preferably, the sealing part is a sealing ring or a sealing gasket.

In order to facilitate installation of the sealing component, an annular sealing groove is formed in the outer surface of the shell, the ball filling hole is located on the inner side of the sealing groove, and a sealing ring is installed in the sealing groove; and/or the shielding surface is provided with an annular sealing groove, the sealing groove corresponds to the outer surface of the shell, and the sealing groove is provided with a sealing ring.

Compared with the prior art, use the utility model provides a pair of locking mechanism and broken glass equipment, simple structure is compact, and reasonable in design not only can use with sheltering from the part cooperation, realizes that the locking/unblock shelters from the function of part, and convenient operation can not appear the problem of unexpected unblock moreover, and the reliability is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is one of schematic structural diagrams of a locking mechanism provided in embodiment 1 of the present invention.

Fig. 2 is a second schematic structural diagram of a locking mechanism according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a latch in a locking mechanism provided in embodiment 1 of the present invention.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a cross-sectional view of a locking mechanism provided in embodiment 1 of the present invention, wherein a compression spring is used as the elastic component.

Fig. 6 is a cross-sectional view of a locking mechanism provided in embodiment 1 of the present invention, wherein an elastic component is an extension spring.

Fig. 7 is a schematic view of a partial structure of a ball filling hole in a glass breaking device according to embodiment 2 of the present invention, in which a shielding member is in a closed state.

Fig. 8 is a second schematic view of a partial structure of a ball filling hole in a glass breaking apparatus according to embodiment 2 of the present invention, in which the shielding member is in an open state.

Fig. 9 is a front view of fig. 7.

Fig. 10 is a cross-sectional view taken at a-a in fig. 9.

Description of the drawings

Casing 100, ball filling hole 101, seal groove 102

The shielding part 200, the baffle hinge 201, the hinge column 202, the hinge hole 203, the clamping plate 204 and the shielding surface 205

Fastener 300

Ball storage mechanism 400 and ball storage position 401

Locking mechanism 500, bolt seat 501, guide channel 502, limiting pin 503, bolt 504, head end 505, tail end 506, guide inclined surface 507, limiting groove 508, locking plane 509, clamp spring groove 510, through hole 511, compression spring 512, clamp spring 513, mounting surface 514, mounting hole 515 and extension spring 516

The sealing member 600.

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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

This embodiment provides a locking mechanism comprising a latch base 501, a latch 504, and a resilient member, wherein,

as shown in fig. 1-6, the pin seat 501 is configured with a mounting surface 514, a mounting portion for detachable mounting is configured in the mounting surface 514, the mounting surface 514 may preferably be a plane or an arc, and the mounting portion may be a mounting hole 515 or a mounting notch, so that the pin seat 501 can be detachably connected to the housing 100 through a fastener 300 such as a bolt, a rivet or the like and is positioned at one side of the ball filling hole 101, as shown in fig. 1-3, and at the same time, the pin seat 501 is configured with a guide channel 502 adapted to the pin 504, as shown in fig. 5 and 6;

the bolt 504 is movably constrained to the guide channel 502 and forms a moving pair with the bolt seat 501, as shown in fig. 5 and 6, so that the bolt 504 can move along the guide channel 502 to realize locking and unlocking functions;

the pin seat 501 is further configured with a first limiting portion, and correspondingly, the pin 504 is further configured with a second limiting portion adapted to the first limiting portion, so that in the moving process of the pin 504, the purpose of limiting can be achieved through the cooperation of the first limiting portion and the second limiting portion, and the pin 504 can only move within a set range;

for convenience of description, one end of the latch 504 for being matched with the shielding member 200 is a head end 505, and the other end is a tail end 506, as shown in fig. 3, in this embodiment, the elastic member is used for providing an elastic force to the latch 504 toward the head end 505 of the latch, the elastic force is distributed along the central axis direction of the latch 504, under the action of the elastic force, the front end of the latch 504 may extend out of the guide channel 502, the shielding member 200 may be locked between the latch 504 and the casing 100, as shown in fig. 1 to 6, and at this time, the second limiting portion may just be clamped at the first limiting portion, so as to balance the elastic force, so that the latch 504 is stressed in balance, so as to stably maintain the locked state.

In this embodiment, the elastic member may be a compression spring 512, and the compression spring 512 may be sleeved on the plug 504, and in order to facilitate assembling the compression spring 512, the guide channel 502 may preferably be a stepped hole, as shown in fig. 5, and accordingly, the plug 504 may be a stepped shaft adapted to the stepped hole, as shown in fig. 5, and the diameter of the plug head end 505 is greater than that of the rear end of the plug 504, as shown in fig. 5, at this time, two ends of the elastic member may be respectively constrained at the step formed at the stepped hole reducing position and the step formed at the stepped shaft reducing position, so as to stably install compression elasticity, and in the whole using process, the compression spring 512 may be in a compression state all the time, so as to provide the plug 504 with an elastic force in a direction from the plug tail end 506 to the plug head end 505, so as to balance the elastic force, the first position-limiting portion and the second position-limiting portion respectively have various embodiments, for example, as shown in fig. 5, the second position-limiting portion includes a clamp spring groove 510 configured at the tail end 506 of the plug pin and a clamp spring 513 installed in the clamp spring groove 510, as shown in fig. 5, at this time, the first position-limiting portion may be an end portion of the guide channel 502, a stopper disposed on the plug seat 501, a stopper disposed on the housing 100, or the like, as shown in fig. 1-3 and fig. 5, so that the clamp spring 513 may be clamped at the first position-limiting portion (e.g., clamped at an end portion of the guide channel 502) under the action of the elastic component, so that the plug pin 504 may maintain the locked state.

In addition, the second limiting part may also be a boss formed on the side surface of the bolt 504, and may also be matched with the second limiting part; correspondingly, the first limiting portion may also be an end portion of the guide channel 502 or a stopper disposed on the latch seat 501.

Similarly, the elastic component may also stretch the spring 516, and only the stretching spring 516 needs to be disposed at the head end 505 of the plug 504, specifically, at this time, the diameter of the plug head end 505 is smaller than the diameter of the rear end of the plug 504, as shown in fig. 6, and the stretching spring 516 is disposed at a position close to the head end 505, two ends of the stretching spring 516 may be respectively connected to the plug 504 and the plug seat 501, and may be kept in a stretching state all the time, so as to provide the plug 504 with an elastic force in a direction from the plug tail end 506 to the plug head end 505, accordingly, the elastic force may be balanced by the cooperation of the first limiting portion and the second limiting portion, and the structures of the first limiting portion and the second limiting portion may be the same as above, and will not be described herein again.

In order to realize the automatic locking of the shielding member 200 by the pressing force between the shielding member 200 and the latch 504 when the shielding member 200 is closed, in a further aspect, the front end of the latch 504 is configured with a guiding inclined surface 507, and the guiding inclined surface 507 can be configured at a side away from the mounting surface 514, as shown in fig. 3, 5 and 6, so as to facilitate the mounting of the latch seat 501 by the mounting portion, and to enable the guiding inclined surface 507 to be located at a side away from the mounting surface 514, and to further facilitate the cooperation with the shielding member 200, as shown in fig. 1-6, so that during the closing of the shielding member 200, when the shielding member 200 is rotated to a position contacting and colliding with the guiding inclined surface 507, a force in the direction from the head end 505 to the tail end 506 of the latch can be generated in the latch 504 by the guiding inclined surface 507, and under the action, the latch 504 can move away from the shielding member 200, as shown by dotted lines with arrows in fig. 5, 6 and 10, the elastic potential energy of the elastic member is increased, the shielding member 200 continues to rotate toward the direction close to the housing 100 until the shielding member is attached to the housing 100, at this time, the shielding member 200 just breaks away from the latch 504, the elastic potential energy of the elastic member is automatically released, so that the latch 504 is driven to move in the reverse direction until the second limiting portion is clamped at the first limiting portion, and the movement is completed, as shown in fig. 5 and 6, at this time, the latch 504 just restores to the initial position, and the shielding member 200 is just locked between the latch 504 and the housing 100, so as to achieve the purpose of automatically locking the shielding member 200.

To prevent the pin 504 from rotating during use, in one embodiment, the cross-section of the pin 504 is non-circular, i.e., the cross-section of the pin 504 is not circular, e.g., the cross-section of the pin 504 can be polygonal (e.g., triangular, quadrilateral, pentagonal, etc.), elliptical or arcuate, etc., and correspondingly, the cross-section of the guide channel 502 adapted to the cross-section is not circular, e.g., the cross-section of the guide channel 502 can also be polygonal (e.g., triangular, quadrilateral, pentagonal, etc.), elliptical or arcuate, etc., so that when the pin 504 is fittingly installed in the guide channel 502, the pin 504 can only move along the length of the guide channel 502, but cannot rotate relative to the guide channel 502, so that the orientation of the guide ramp 507 can be maintained.

In another embodiment, the side surface of the plug 504 is further configured with a strip-shaped limiting groove 508, as shown in fig. 5 and 6, and the limiting groove 508 is distributed along the length direction of the plug 504, the plug seat 501 is provided with a limiting pin 503, and one end of the limiting pin 503 is inserted into the limiting groove 508 and is adapted to the limiting groove 508, through the cooperation between the limiting pin 503 and the limiting groove 508, as shown in fig. 5 and 6, not only can the plug 504 be prevented from rotating relative to the guide channel 502, but also when the plug 504 moves relative to the plug seat 501, the limiting groove 508 can move relative to the limiting pin 503, and in this process, the plug 504 cannot rotate relative to the guide channel 502 under the constraint of the limiting pin 503, so that the orientation of the guide inclined surface 507 remains unchanged; and in such an embodiment, the cross-section of the pin 504 may preferably be circular, as shown in fig. 3, and the cross-section of the guide channel 502 adapted thereto may also be circular.

In one embodiment, the length of the slot 508 is greater than or equal to the maximum distance of the pin 504, as shown in fig. 5 and 6, so that the pin 504 can work normally.

In order to improve the reliability of the locking mechanism 500, in a further aspect, a locking plane 509 for locking the shielding member 200 is further configured at the front end of the latch 504, and the locking plane 509 is configured at a side away from the guide slope 507, as shown in fig. 3 to 6, for adapting the shielding member 200, so that an included angle between an acting force of the shielding member 200 on the locking plane 509 (i.e., an acting force for opening the shielding member 200) and an elastic force of the elastic member is always kept at 90 degrees during use, and a stroke pressure dead angle is formed, as shown in fig. 3 to 6, so that the acting force of the shielding member 200 does not affect the elastic member under the impact force, so that the shielding member 200 is always in a locked state, and the impact resistance is good, thereby significantly improving the stability and reliability of the locking mechanism 500.

When unlocking, it is necessary to pull the tail end 506 of the bolt 504, so that the bolt 504 moves in the direction from the head end 505 to the tail end 506, and in a further embodiment, for convenience of operation, the tail end 506 of the bolt 504 is further provided with a gripping structure for facilitating force application, such as a handle, a pull ring, a pull rope, etc., and in a more sophisticated embodiment, the tail end 506 of the bolt 504 is further configured with a through hole 511 for connecting the pull ring or the pull rope, as shown in fig. 1-6, so as to connect the pull ring or the pull rope.

Example 2

The present embodiment provides a glass breaking apparatus including a housing 100, a protection mechanism, and the locking mechanism 500 described in embodiment 1, wherein,

as shown in fig. 7 to 10, the casing 100 may enclose a relatively closed inner space, so that other devices required for the glass breaking apparatus may be installed in the inner space of the casing 100, so as to isolate and protect the devices from water and dust by using the casing 100;

as shown in fig. 10, a ball storage mechanism 400 is disposed in the casing 100, the ball storage mechanism 400 is configured with a plurality of ball storage positions 401, each ball storage position 401 can separately store one broken glass part (such as a broken glass ball), the number of the ball storage positions 401 can be determined according to actual requirements, and is usually greater than two, the configuration of the ball storage positions 401 is adapted to the shape of the broken glass part, and the shapes of the ball storage positions 401 can be different to adapt to the broken glass parts of different models.

In order to facilitate filling (refilling) of the glass breaking members into the ball storage positions 401 of the ball storage mechanism 400, in the present embodiment, the housing 100 is configured with a ball filling hole 101 communicating with the internal space, as shown in fig. 8 and 10, so that the glass breaking members can be manually filled into the respective ball storage positions 401 in the glass breaking device through the ball filling hole 101.

In this embodiment, the protection mechanism may close the ball filling hole 101 by shielding the ball filling hole 101, as shown in fig. 7-10, during actual use, on one hand, an operator may close the ball filling hole 101 by using the protection mechanism, which not only may have a good waterproof and dustproof effect on the inside of the glass breaking device, but also may effectively prevent the glass breaking member from falling out of the ball storage position 401 of the ball storage mechanism 400, and on the other hand, the operator may also open the ball filling hole 101 by using the protection mechanism, so as to fill the glass breaking member into the ball storage position 401 in the housing 100 through the ball filling hole 101; the protection mechanism has various embodiments, by way of example, the protection mechanism includes a shielding member 200, the shielding member 200 is configured with a shielding surface 205 adapted to the housing 100, as shown in fig. 8, the shielding member 200 is movably connected to the outside of the housing 100, so that the orientation of the shielding member 200 is adjusted by the rotation of the shielding member 200 relative to the housing 100, so that the shielding member 200 can close/open the ball filling hole 101; the latch seat 501 is installed on the housing 100, and the latch 504 is engaged with the shielding member 200, as shown in fig. 7 to 10, the latch 504 is used to lock/unlock the shielding member 200, so that when the shielding member 200 closes the ball filling hole 101, the locking mechanism 500 can lock the shielding member 200 to prevent the shielding member 200 from rotating, thereby enabling the shielding member 200 to stably maintain a closed state for a long time.

In practical implementation, the shielding member 200 may preferably adopt a plate-shaped structure, as shown in fig. 7-10, the shape of the shielding member 200 is adapted to the shape of the ball filling hole 101, and the area of the shielding member 200 is larger than the area of the ball filling hole 101, so as to effectively shield the ball filling hole 101. The locking mechanism 500 can be directly matched with the shielding component 200 in the protection mechanism, or can be matched with the clamping plate 204 connected with the shielding component 200, and can also achieve the purpose of locking the shielding component 200, as shown in fig. 7-10.

To achieve the movable connection of the shielding member 200, in a further aspect, the protecting mechanism further includes a hinge structure including a hinge post 202 and a hinge hole 203 adapted to the hinge post 202, as shown in fig. 7-10, so that the shielding member 200 can be connected to the housing 100 through a revolute pair formed by the cooperation of the hinge post 202 and the hinge hole 203, so that the shielding member 200 can rotate relative to the housing 100.

In practice, the hinge structure may be a hinge commonly used in the prior art, and in another embodiment, the hinge structure further includes a flap hinge 201, as shown in fig. 7 to 10, the flap hinge 201 may be mounted to the housing 100 by a fastener 300 such as a bolt, a rivet, or the like, in which case the hinge hole 203 may be respectively formed in the flap hinge 201 and/or the shielding member 200, and may be hinged to the shielding member 200 by a hinge post 202, as shown in fig. 7 to 10, so that the shielding member 200 may be hinged to the flap hinge 201.

In order to improve the sealing effect, in a further aspect, a sealing member 600 is further disposed between the shielding member 200 and the housing 100, so that a gap between the shielding member 200 and the housing 100 is eliminated by the sealing member 600, and water or dust is prevented from entering. The sealing member 600 may be a conventional gasket or a sealing washer. In order to facilitate installation of the sealing member 600, in a more sophisticated scheme, the outer surface of the casing 100 is further configured with an annular sealing groove 102, and the ball filling hole 101 is located inside the sealing groove 102, as shown in fig. 7-10, the sealing groove 102 is used for installing a sealing ring; in another embodiment, the blocking surface 205 is configured with an annular sealing groove 102, the sealing groove 102 corresponds to the outer surface of the housing 100, and the sealing groove 102 is used for installing a sealing ring, which can also achieve the same technical effect; of course, in specific implementation, the sealing groove 102 may also be configured in the housing 100 and the shielding surface 205, respectively, so as to achieve a better sealing effect.

In a preferred embodiment, the blocking member 200 and the locking mechanism 500 may be respectively coupled to both sides of the ball filling hole 101, as shown in fig. 7 to 10.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. A locking mechanism is characterized by comprising a bolt seat, a bolt and an elastic component, wherein the bolt seat is provided with a guide channel matched with the bolt,

the bolt is movably restricted in the guide channel and forms a sliding pair with the bolt seat,

the bolt seat is provided with a first limit part, the bolt is provided with a second limit part which is matched with the first limit part,

the elastic component is used for providing elasticity towards the end of the bolt for the bolt, the second limiting part is clamped at the first limiting part under the action of the elasticity, and the front end of the bolt extends out of the guide channel and is used for locking the shielding component.

2. The lock mechanism as recited in claim 1, wherein the front end of the bolt is configured with a guide ramp.

3. The lock mechanism as set forth in claim 2, wherein the front end of the latch is further configured with a lock plane for locking the shutter member, and the lock plane is configured at a side facing away from the guide slope.

4. The locking mechanism of claim 2, wherein said latch housing is further configured with a mounting surface, a mounting portion for removable mounting is configured in said mounting surface, and said guide ramp is configured on a side facing away from said mounting surface.

5. The lock mechanism as claimed in any one of claims 1 to 4, wherein the resilient member is an extension spring or a compression spring, and the extension spring or the compression spring is connected at both ends to the bolt and the bolt housing respectively.

6. The locking mechanism as claimed in claim 5, wherein the guiding channel is a stepped hole, the pin is a stepped shaft adapted to the stepped hole, the elastic member is sleeved on the pin, and two ends of the elastic member are respectively constrained by a step formed at a diameter-changing position of the stepped hole and a step formed at a diameter-changing position of the stepped shaft.

7. The lock mechanism as claimed in any one of claims 1 to 4, wherein the second position-limiting portion comprises a snap spring groove formed at the tail end of the plug pin and a snap spring mounted in the snap spring groove, the snap spring is adapted to be engaged with the first position-limiting portion under the action of the elastic member,

or the second limiting part is a boss constructed on the side surface of the bolt;

and/or the first limiting part is the end part of the guide channel or a stop block arranged on the bolt seat.

8. The lock-out mechanism of any one of claims 1 to 4, wherein the cross-section of the bolt is non-circular and the cross-section of the guide channel is non-circular;

and/or a strip-shaped limiting groove is further formed in the side face of the bolt, the limiting groove is distributed along the length direction of the bolt, a limiting pin is arranged on the bolt seat, and one end of the limiting pin is inserted into the limiting groove and matched with the limiting groove.

9. The lock-out mechanism of any one of claims 1 to 4, wherein the bolt is provided with a gripping formation at its rear end, the gripping formation comprising a handle, a pull ring or a pull cord,

or the holding structure comprises a through hole for connecting a pull ring or a pull rope.

10. A glass breaking apparatus comprising a housing, a protection mechanism, and the locking mechanism of any one of claims 1 to 9,

the shell is configured with a ball filling hole communicated with the inside, the ball filling hole is used for passing through the glass breaking piece,

the protection mechanism comprises a shielding component which is movably connected to the outer side of the shell and used for closing/opening the ball filling hole,

the bolt seat is arranged on the shell, the bolt is matched with the shielding component, and the bolt is used for locking/unlocking the shielding component.

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