Built-in display shell safety mechanism and management and control method
Through the built-in firework safety mechanism and the UID number and firing key management method, the problem of traditional firework shells being easily disassembled and modified has been solved, and the full life cycle supervision of firework shells has been achieved, which has improved safety and supervision efficiency.
Patent Information
- Application Number
- CN202511123383.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2025-09-26
AI Technical Summary
Traditional fireworks launching systems have poor safety, are easily disassembled and modified, cannot be supervised throughout their entire life cycle, and pose social security risks.
A built-in safety mechanism for fireworks shells is designed, which includes a locking mechanism and an electronically controlled drive component. The unique UID number and firing key are used to achieve full life cycle supervision of fireworks shells, including production, circulation, firing and destruction.
It realizes the supervision of the whole life cycle of fireworks shells, improves product safety, reduces the risk of illegal circulation and use, and ensures public safety.
Smart Images
Figure CN120702276A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of safety supervision of display shells, and in particular to a built-in safety mechanism for display shells and a control method thereof. Background Art
[0002] With the advancement of technology and the improvement of safety management requirements, fireworks, as an important element in celebration activities, have attracted much attention for their safety and controllability. The traditional fireworks launching system consists of propellant 1-1, delay fuse 1-2, launching tube 1-3, fireworks body 1-4, paper cover 1-5, fuse 1-6, such as Figure 1 As shown, its safety structure is relatively simple to assemble, easy to be disassembled and destroyed, and easy to be illegally modified. In addition, the regulatory authorities are unable to accurately supervise and manage the entire life cycle of the product's manufacturing, circulation, discharge, and destruction, which poses certain social security risks. Summary of the Invention
[0003] In response to the above problems, the present invention provides a built-in display shell safety mechanism and a control method, which can realize the safe supervision of display shells and implement the full life cycle supervision of the manufacturing, circulation, firing and destruction of display shells, greatly improving the safety of the product.
[0004] The present invention adopts the following technical solution: a built-in display shell safety mechanism, including a display shell body and a base that are assembled and connected. The display shell body is provided with a cavity for accommodating ignition agent. A control device is disposed in the cavity. The control device is provided with a locking mechanism. The locking mechanism includes a fire transmission channel, a blocking component located in the fire transmission channel, and an adjustment component disposed in the control device. The upper and lower ends of the fire transmission channel extend into the cavity and the base respectively. The ignition element in the base extends into the fire transmission channel. The control device is also provided with an electrically connected control element and an electrically controlled drive assembly. , the control element is used to control the extension or retraction of the action part in the electronically controlled drive component; the blocking component has a switchable working state of conducting or blocking the fire transmission channel in cooperation with the adjusting component; the adjusting component has a switchable locking state and unlocking state in cooperation with the electronically controlled drive component; when the electronically controlled drive component drives the adjusting component to switch to the locked state, the blocking component switches to a working state capable of blocking the fire transmission channel; when the electronically controlled drive component drives the adjusting component to switch to the unlocked state, the blocking component switches to a working state of conducting the fire transmission channel.
[0005] Furthermore, an elastic member is mounted on the adjusting member, and the elastic member is used to provide a driving force for the blocking member to move in the unlocked state. When the electronically controlled drive assembly drives the adjusting member to switch to the unlocked state, the elastic force cooperates with the adjusting member to drive the blocking member to move along the length direction of the adjusting member, so as to switch the blocking member to a working state of conducting the fire transmission channel. Furthermore, the bottom surface of the base is upwardly concave and in the shape of an inverted bowl. A PCB circuit board with an integrated ignition control chip is provided in the base. The ignition element is electrically connected to the ignition control chip. A control bus electrically connected to the control element passes through the control device and the base and is then connected to the ignition control chip. A lead hole is provided on the base, and a lead wire for a display shell electrically connected to the ignition control chip is led out from the lead hole. Furthermore, the control element adopts a single chip microcomputer, and the electric control drive assembly includes an electromagnet controller, which is connected to the action part and is used to control the electromagnet inside the electromagnet controller to generate or lose magnetism, so as to drive the action part to extend or retract; Furthermore, the control device includes a detachably connected main body and a cover, the cover being fixedly mounted on the top surface of the base, the base being provided with a fire hole corresponding to the fire channel, the lower end of the fire channel extending into the fire hole, and the upper end of the ignition element extending through the fire hole into the fire channel; Furthermore, a cavity is formed between the main body and the cover; an opening is provided on the fire transmission channel, so that the blocking component can extend into or out of the fire transmission channel under the action of the adjusting component; the fire transmission channel and the cover are an integral structure, and the upper end of the fire transmission channel passes through the main body and extends into the cavity; Furthermore, the control device is equipped with a support base for passing the adjustment component, the support base is fixed on the cover body, and a guide structure is provided on the support base for limiting the moving path of the adjustment component; Furthermore, a gap is left between the outer wall of the control device and the inner wall of the shell; the adjusting component located in the extension direction of the action part is provided with a notch so that the action part abuts against the notch after the action part is extended; The present invention also provides a method for controlling a built-in display shell safety mechanism, comprising the following steps: S1. Assign a unique UID number and password to each display shell to generate a corresponding firing key. The generated firing key is written into the control element of the corresponding display shell. The firing key is encrypted and transmitted to the password management center for product filing. The UID number includes at least product firing model parameters, manufacturer information, display shell type, charge information, and usage scenario information. S2. The password management center obtains the request information sent by the user through the request terminal. The request information at least includes the time of the product firing, the location of the product firing, the person firing the product, and the quantity of the product fired; S3. Based on the request information, the password management center sends the authorization information and the firing key to the control element of the designated display shell. After verification, the control element drives the electronically controlled drive assembly to unlock the adjustment component, causing the blocking component to move to the conducting position, thereby unlocking the display shell and enabling the display shell to be ignited and fired. S4. After the display is completed, the UID number of the used fireworks shell is fed back to the password management center.
[0006] Furthermore, in step S3, after receiving the firing key, the control element compares the currently obtained firing key with the pre-written firing key. If they match, the electronically controlled drive component is authorized to operate to complete the unlocking of the display shell; if they do not match, the display shell remains locked and is not detonated.
[0007] The beneficial effect of the present invention is that by providing a locking mechanism in the display shells and through corresponding management and control, accurate supervision of the entire process of production, transportation, storage and use of the display shells can be achieved, thereby greatly improving the safety of the products and significantly reducing the risks of illegal circulation and use of the products, which is of great benefit to public safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of an existing display shell launching system; Figure 2 It is a schematic diagram of the assembly structure of the present invention; Figure 3 It is a schematic diagram of the decomposition structure of the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 5 It is a schematic diagram of the partial cross-sectional structure of the assembly of the base and the control device in the present invention; Figure 6 This is a schematic diagram of the assembled three-dimensional structure of the base and the control device in the present invention; Figure 7 This is a schematic diagram of the assembly cross-sectional structure of the base and the control device in the present invention; Figure 8This is a schematic diagram of the assembled structure with the main body hidden in the present invention; Figure 9 This is a schematic diagram of the assembled three-dimensional structure after the main body is hidden in the present invention; Figure 10 It is the control flow chart in the present invention. DETAILED DESCRIPTION
[0009] like Figures 2 to 10 As shown, a built-in safety mechanism for display shells of the present invention comprises a display shell body 1 and a base 2 which are assembled and connected. The display shell body 1 is provided with a cavity 3 for accommodating an ignition agent (not shown in the figure). A control device 4 is disposed in the cavity 3. The control device 4 is provided with a locking mechanism. The locking mechanism comprises a fire transmission channel 5, a blocking component 9 located in the fire transmission channel 5, and an adjusting component 10 disposed in the control device 4. The fire transmission channel 5 can be configured as a cylindrical channel, a multi-section channel, a channel with a special cross-section, etc. In this embodiment, the fire transmission channel 5 is a cylindrical channel structure. The upper and lower ends of the fire transmission channel 5 extend into the cavity 3 and the base 2 respectively. An ignition element 6 in the base 2 extends into the fire transmission channel 5. The control device 4 is further provided with an electrically connected control element 7 and an electric control drive assembly. The control element 7 is used to control the extension or retraction of an action portion 8 in the electric control drive assembly. The blocking member 9 can be moved under the drive of the adjustment member 10, and has a first position blocking the fire transmission channel 5 and a second position conducting the fire transmission channel 5. The electronically controlled drive assembly selectively allows or prohibits the movement of the blocking member 9 by controlling the locked or unlocked state of the adjustment member 10. That is, the blocking member 9 has a switchable working state of conducting or blocking the fire transmission channel 5 under the cooperation of the adjustment member 10. Specifically, one end of the adjustment member 10 passes through the opening 23 and connects with the blocking member 9, thereby driving the blocking member 9 to move. The adjustment member 10 has a switchable locked state and unlocked state under the cooperation of the electronically controlled drive assembly. When the electronically controlled driving assembly drives the adjusting member 10 to switch to the locked state, the blocking member 9 switches to the working state capable of blocking the fire transmission channel 5 (that is, the blocking member 9 moves to the first position capable of blocking the fire transmission channel 5). In other words, in this case, the action portion 8 in the electronically controlled driving assembly extends until it abuts against the adjusting member 10, switching the adjusting member 10 to the locked state. At the same time, the working state of blocking the fire transmission channel 5, that is, the blocking member 9 is sealed in the fire transmission channel 5, thereby preventing the ignition agent from contacting the ignition element 6. When the electric control drive assembly drives the adjustment component 10 to switch to the unlocked state, the blocking component 9 switches to the working state of conducting the fire transmission channel 5 (that is, the blocking component 9 moves to the second position capable of conducting the fire transmission channel 5); further, the other end of the adjustment component 10 is covered with an elastic member 12, and the elastic member 12 is used to provide a driving force for the movement of the blocking component 9 in the unlocked state. When the electric control drive assembly drives the adjustment component 10 to switch to the unlocked state, under the action of the elastic force, the blocking component 9 is driven by the adjustment component 10 to move along the length direction of the adjustment component 10 to cut the blocking component 9 off. It is changed to the working state of the fire transmission channel 5; that is, in this case, the action part 8 in the electronically controlled drive assembly is retracted, and the action part 8 no longer abuts on the adjusting component 10, and the adjusting component 10 can be switched to the unlocked state. At the same time, under the action of the elastic member 12, the adjusting component 10 drives the blocking component 9 to extend from the opening 23, and the working state of the fire transmission channel 5 is that the blocking component 9 is no longer blocked in the fire transmission channel 5. At this time, the fire transmission channel 5 and the fire transmission hole are aligned and connected up and down, and the ignition agent can contact the ignition element 6 to achieve detonation and combustion.
[0010] In the present invention, the regulating component 10 is a valve stem, the blocking component 9 is a valve core, and the elastic component 12 is a compression spring.
[0011] The bottom surface of the base 2 is recessed upward and shaped like an inverted bowl. A PCB circuit board 13 with an integrated ignition control chip (not shown in the figure) is provided in the base 2. The ignition element 6 is electrically connected to the ignition control chip. A control bus 14 electrically connected to the control element 7 passes through the control device 4 and the base 2 and is then connected to the ignition control chip. A lead opening 15 is provided on the base 2, and a firework fuse 16 electrically connected to the ignition control chip is led out from the lead opening 15.
[0012] The control element 7 adopts a single-chip microcomputer, that is, the control element 7 has the control function of password comparison and locking or unlocking the locking mechanism; the electric control drive assembly includes an electromagnet controller 17, which is connected to the action part 8 and is used to control the electromagnet inside the electromagnet controller 17 to generate or lose magnetism to drive the action part 8 to extend or retract. That is to say, the working state of the electromagnet controller 17 is determined by the control element 7. If the control element 7 outputs authorization information, the electromagnet controller 17 is actuated to drive the action part 8 to retract from the recess 18. The blocking component 9 is retracted from the fire transmission channel 5 through the action of the adjustment component 10 and the elastic member 12, thereby unlocking the display shell. If the control element 7 does not output authorization information, the electromagnet controller 17 does not actuate, the action part 8 still abuts against the recess 18, and the display shell is kept in the locked state, which can separate the ignition powder on the ignition element 6 and the ignition agent in the cavity 3 of the display shell body 1.
[0013] The control device 4 can be set as a non-box-shaped packaging structure. Specifically, the control device 4 includes a detachably connected main body 19 and a cover body 20. The cover body 20 is fixedly mounted on the top surface of the base 2. A fire transfer hole 21 corresponding to the fire transfer channel 5 is opened on the base 2. The lower end of the fire transfer channel 5 extends into the fire transfer hole 21, and the upper end of the ignition element 6 extends into the fire transfer channel 5 after passing through the fire transfer hole 21; a cavity 22 is formed between the main body 19 and the cover body 20, and the cavity 22 can facilitate the assembly of locking elements, etc.; an opening 23 is provided on the fire transfer channel 5, so that the blocking component 9 can extend into or out of the fire transfer channel 5 through the opening 23 under the action of the adjusting component 10; the fire transfer channel 5 and the cover body 20 are an integrated structure, and the upper end of the fire transfer channel 5 extends into the cavity 3 after passing through the main body 19.
[0014] The control device 4 is equipped with a support base 11 for passing the adjusting component 10. The support base 11 is fixed on the cover body 20. A guide structure is provided on the support base 11 for limiting the moving path of the adjusting component 10. The guide mechanism includes a semi-arc guide groove 24 provided on the support base 11. The adjusting component 10 is placed in the guide groove 24. A pressure block 25 is provided on the support base 11, and a positioning guide opening 26 capable of accommodating the passage of the adjusting component 10 is formed between the pressure block 25 and the support base 11. A push block 27 is provided at the other end of the adjusting component 10, and the elastic member 12 is mounted on the adjusting component 10 located between the pressure block 25 and the push block 27.
[0015] The control device 4 is provided with a through opening 28 capable of accommodating the extension of the pushing block 27, and a gap is left between the outer wall of the control device 4 and the inner wall of the display shell body 1; the adjustment component 10 located in the extension direction of the action part 8 is provided with a notch 18, so that the action part 8 abuts against the notch 18 after it is extended.
[0016] The working principle of the present invention is: After the display shell body 1 and base 2 are vertically assembled, the entire body is placed into a launch tube (not shown in the figure). After installation, in the initial state, the elastic member 12 is in a compressed state, the blocking member 9 is blocked in the fire transmission channel 5, and the operating portion 8 abuts against the recess 18, thereby maintaining the blocking member 9 in a state of blocking the fire transmission channel 5. That is, the fire transmission channel 5 and the fire transmission hole 21 are vertically aligned but not connected. At this time, the ignition charge 29 on the ignition element 6 and the ignition charge in the cavity 3 of the display shell body 1 can be separated; After obtaining authorization and matching the firing key, the control element 7 issues an authorized unlocking command to control the electromagnetic controller to unlock, and the action part 8 retracts from the recess 18. Then, through the action of the elastic member 12, the adjustment component 10 and the blocking component 9 thereon are retracted together, and the blocking component 9 is also retracted from the fire transmission channel 5. At this time, the fire transmission channel 5 and the fire transmission hole 21 are in a state of alignment and connection up and down, completing the mechanical unlocking action. The ignition powder on the ignition element 6 can then detonate the ignition agent in the cavity 3 of the firework shell body 1, realizing detonation and firing.
[0017] The present invention also provides a method for controlling a built-in display shell safety mechanism, comprising the following steps: S1. During production, each display shell is assigned a unique UID number and password to generate a corresponding firing key. This key is then written into the control element 7 of the corresponding display shell. Once written, the firing key is locked and cannot be read or rewritten. Only firing key comparison can be performed. The firing key is encrypted and transmitted to the password management center for product filing. The UID number information includes product firing model parameters, manufacturer information, display shell type, charge amount information, and usage scenario information. S2. The password management center obtains the request information sent by the user through the request terminal. The request information at least includes the time of the product firing, the location of the product firing, the person firing the product, and the quantity of the product fired; S3. Based on the request information, the password management center sends the authorization information and the firing key to the control element 7 of the designated display shell. After verification, the control element drives the electronically controlled drive assembly to unlock the adjustment component 10, causing the blocking component 9 to move to the conducting position, thereby unlocking the display shell. That is, the action part 8 retracts from the adjustment component 10, thereby unlocking the display shell and igniting the display shell. Furthermore, in step S3, after receiving the firing key, the control element 7 compares the obtained firing key with the pre-written firing key. If they match, the electronically controlled drive assembly is authorized to operate to complete the unlocking of the display shell. Subsequently, the ignition control chip on the PCB circuit board 13 drives the ignition to realize the ignition and firing of the display shell. If they do not match, the display shell remains locked and does not detonate and fire. S4. After the display is completed, the UID number of the used fireworks shell is fed back to the password management center.
[0018] Since priming powder is mostly a sensitive agent, and the amount of powder in the display shell is large, products with an integrated structure have a higher safety risk during transportation; the present invention sets the display shell to a split design, so although the priming powder is sensitive, the amount of powder is low, and a base 2 is provided. In the initial state, the fire transmission channel 5 and the fire transmission hole 21 are in an aligned but disconnected state, so the priming powder 29 cannot touch the ignition agent during transportation, and is therefore not sensitive to static electricity or transportation vibration. Although the amount of powder in the display shell body 1 is large, it is a sudden-sensing agent and is provided with a locking mechanism, which cannot be detonated by ordinary ignition shaking head, and therefore has higher safety; in addition, a supervision control chip is placed in the display shell body and the base, that is, two chips, a control element 7 and an ignition control chip, are provided, so that functions such as tracing the product unique code (UID), password verification, delay setting, ignition control, and mechanical unlocking can be realized.
[0019] The control process is as follows: when fireworks are produced, the product's unique coding UID number and password are written into the control component 7, and the firing key is encrypted and transmitted to the National Cryptography Management Center (such as the national public security system). If the password is not known in the circulation links such as transportation and warehousing of fireworks, ignition cannot be completed, eliminating the risk of illegal circulation and use of products and theft. When firing, professional firing organizations apply to the National Cryptography Management Center in advance and declare the time and place of firing. The National Cryptography Management Center will approve the authorization information such as the quantity, time, and firing area of the products and the firing key to the control component 7 of the designated numbered fireworks. After the firing key is compared and matched successfully, the fireworks product can be unlocked; after the firing is completed, the UID number of the fireworks used will be reported to the public security system, so that the public security can realize the prior approval and post-event supervision of the firing model, quantity, area, time, personnel, and firing control component 7 of the fireworks.
[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A built-in safety mechanism for a display shell, characterized by: The display shell comprises an assembled and connected display shell body and a base, the display shell body being provided with a cavity for accommodating an ignition agent, a control device being provided in the cavity, the control device being provided with a locking mechanism, the locking mechanism comprising a fire transmission channel, a blocking component located in the fire transmission channel, and an adjusting component provided in the control device, the upper and lower ends of the fire transmission channel extending into the cavity and the base respectively, an ignition element in the base extending into the fire transmission channel, the control device being further provided with an electrically connected control component and an electric control drive assembly, the control component being used to control the extension or retraction of an action portion in the electric control drive assembly; the blocking component being movable under the drive of the adjusting component, having a first position blocking the fire transmission channel and a second position conducting the fire transmission channel; The electronically controlled drive assembly selectively allows or prohibits movement of the blocking component by controlling the locking or unlocking state of the adjusting component; When the electric control drive assembly drives the adjusting component to switch to the locked state, the blocking component switches to a working state capable of blocking the fire transmission channel; When the electronically controlled drive assembly drives the regulating component to switch to the unlocked state, the blocking component switches to a working state of conducting the fire transmission channel.
2. The built-in display shell safety mechanism according to claim 1, characterized in that: An elastic member is mounted on the adjusting member, and the elastic member is used to provide a driving force for the movement of the blocking member in the unlocked state. When the electronically controlled drive assembly drives the adjusting member to switch to the unlocked state, the blocking member is driven by the adjusting member to move along the length direction of the adjusting member under the action of the elastic force, so as to switch the blocking member to a working state that conducts the fire transmission channel.
3. The built-in display shell safety mechanism according to claim 1, characterized in that: The bottom surface of the base is recessed upward and shaped like an inverted bowl. A PCB circuit board with an integrated ignition control chip is provided in the base. The ignition element is electrically connected to the ignition control chip. The control bus electrically connected to the control element passes through the control device and the base and is then connected to the ignition control chip. A lead wire opening is provided on the base, and the lead wire of the firework shell electrically connected to the ignition control chip is led out from the lead wire opening.
4. The built-in display shell safety mechanism according to claim 1, characterized in that: The control element adopts a single chip microcomputer, and the electric control drive component includes an electromagnet controller, which is connected to the action part and is used to control the electromagnet inside the electromagnet controller to generate magnetism or lose magnetism, so as to drive the action part to extend or retract.
5. The built-in display shell safety mechanism according to claim 1, characterized in that: The control device includes a main body and a cover that are detachably connected. The cover is fixedly mounted on the top surface of the base. A fire hole corresponding to the fire channel is provided on the base. The lower end of the fire channel extends into the fire hole. The upper end of the ignition element passes through the fire hole and extends into the fire channel.
6. The built-in display shell safety mechanism according to claim 5, characterized in that: A cavity is formed between the main body and the cover; an opening is provided on the fire transmission channel so that the blocking component can extend into or out of the fire transmission channel under the action of the adjusting component; The fire transmission channel and the cover body are an integrated structure, and the upper end of the fire transmission channel passes through the main body and extends into the cavity.
7. The built-in display shell safety mechanism according to claim 1, characterized in that: The control device is provided with a support base for passing the adjusting component. The support base is fixed on the cover body. A guide structure is provided on the support base for limiting the moving path of the adjusting component.
8. The built-in display shell safety mechanism according to claim 1, characterized in that: A gap is left between the outer wall of the control device and the inner wall of the display shell; a notch is provided on the adjusting component located in the extending direction of the action part, so that the action part abuts against the notch after the action part is extended.
9. A method for controlling a built-in safety mechanism of a display shell, characterized by: A method using a built-in display shell safety mechanism as described in any one of claims 1 to 8 includes the following steps: S1. Assign a unique UID number and password to each display shell to generate a corresponding firing key. The generated firing key is written into the control element of the corresponding display shell. The firing key is encrypted and transmitted to the password management center for product filing. The UID number includes at least product firing model parameters, manufacturer information, display shell type, charge information, and usage scenario information. S2. The password management center obtains the request information sent by the user through the request terminal. The request information at least includes the time of the product firing, the location of the product firing, the person firing the product, and the quantity of the product fired; S3. Based on the request information, the password management center sends the authorization information and the firing key to the control element of the designated display shell. After verification, the control element drives the electronically controlled drive assembly to unlock the adjustment component, causing the blocking component to move to the conducting position, thereby unlocking the display shell and enabling the display shell to be ignited and fired. S4. After the display is completed, the UID number of the used fireworks shell is fed back to the password management center.
10. The method for controlling a built-in display shell safety mechanism according to claim 9, wherein: In step S3, after receiving the firing key, the control element compares the currently obtained firing key with the pre-written firing key. If they match, the electronically controlled drive component is authorized to operate to complete the unlocking of the display shell; if they do not match, the display shell remains locked and will not be detonated.