Puncture system, puncture system control method, and fire engine

Abstract

The application discloses a kind of puncture system, puncture system control method and fire engine.The puncture system includes controller, needle, hydraulic system and two distance measuring modules, hydraulic system includes hydraulic pump, puncture cylinder, extension accumulator, extension control valve and oil tank, the rodless cavity of puncture cylinder is fluidly connected with hydraulic pump, the rod cavity is fluidly connected with oil tank by extension control valve;Extension accumulator is fluidly connected with rodless cavity, needle is drivingly connected with puncture cylinder, two distance measuring modules are oppositely arranged on the upper and lower sides of needle, and are used for detecting the puncture distance between needle and object to be punctured;Controller is communicatively connected with extension accumulator, extension control valve and two distance measuring modules, for receiving puncture instruction, if two puncture distances are greater than first preset value, control extension accumulator to keep closed, and control extension control valve to open.The puncture system provided by the application can automatically reduce the kinetic energy of the needle during the air training, prevent the equipment from being damaged, and improve the safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire-fighting equipment, in particular to a piercing system, a piercing system control method and a fire truck. BACKGROUND

[0002] The piercing system of the airport special fire truck is configured with a piercing needle device at the top of the arm support. The function of the piercing needle device is to shoot out the piercing needle to penetrate the aircraft skin under the joint action of the accumulator and the hydraulic pump when the cabin or cargo compartment is on fire, and then the piercing needle sprays high-pressure fire extinguishing agent to extinguish the fire.

[0003] During the fire drill or daily training, the piercing needle is often subjected to empty piercing training, that is, the piercing needle is stretched out without a piercing object. The strong kinetic energy generated when the piercing needle is empty-pierced has no place to release, which will cause great vibration and impact on the piercing device and related components, easily leading to loosening or even damage of the components, and has high risk. SUMMARY

[0004] The purpose of the present application is to provide a piercing system which can automatically reduce the kinetic energy of the piercing needle during empty-piercing training, prevent the equipment from being damaged, and improve safety.

[0005] Another purpose of the present application is to provide a piercing system control method which can automatically reduce the kinetic energy of the piercing needle during empty-piercing training, prevent the equipment from being damaged, and improve safety.

[0006] Still another purpose of the present application is to provide a fire truck which can automatically reduce the kinetic energy of the piercing needle during empty-piercing training, prevent the equipment from being damaged, and improve safety.

[0007] Embodiments of the present application provide a technical solution:

[0008] A piercing system comprises a controller, a piercing needle, a hydraulic system and two distance measuring modules. The hydraulic system comprises a hydraulic pump, a piercing cylinder, an extension accumulator, an extension control valve and an oil tank. The rodless cavity of the piercing cylinder is in fluid connection with the hydraulic pump, and the rod cavity of the piercing cylinder is in fluid connection with the oil tank through the extension control valve.

[0009] The extension accumulator is in fluid connection with the rodless cavity of the piercing cylinder, the piercing needle is in transmission connection with the piercing cylinder, and the two distance measuring modules are oppositely arranged on the upper and lower sides of the piercing needle and are used for detecting the piercing distance between the piercing needle and the object to be pierced.

[0010] The controller is in communication connection with the extension accumulator, the extension control valve and the two distance measuring modules, respectively. When receiving a piercing instruction, the controller controls the extension accumulator to remain closed and controls the extension control valve to be opened when the two piercing distances are greater than a first preset value.

[0011] In an optional implementation, the first preset value is 400 mm.

[0012] In an optional implementation, the controller is further configured to, when receiving the puncture instruction, control the extension accumulator to be opened for a preset time length, and then control the extension control valve to be opened, if both the puncture distances detected by the two distance measuring modules are less than or equal to the first preset value, and the difference between the two puncture distances is less than or equal to a second preset value.

[0013] In an optional implementation, the second preset value is 30 mm.

[0014] In an optional implementation, the preset time length is 5 s.

[0015] In an optional implementation, the hydraulic system further comprises a retraction accumulator and a retraction control valve, the retraction accumulator is fluidly connected to a pipeline between the extension control valve and the oil tank, one end of the retraction control valve is fluidly connected to a pipeline between the extension accumulator and the rodless chamber of the puncture cylinder and the hydraulic pump, and the other end is fluidly connected to a pipeline between the extension control valve and the rod chamber of the puncture cylinder.

[0016] The present application also provides a puncture system control method applied to a puncture system, the puncture system comprising a puncture needle, a hydraulic system and two distance measuring modules, the hydraulic system comprising a hydraulic pump, a puncture cylinder, an extension accumulator, an extension control valve and an oil tank, the rodless chamber of the puncture cylinder being fluidly connected to the hydraulic pump, and the rod chamber of the puncture cylinder being fluidly connected to the oil tank through the extension control valve; the extension accumulator being fluidly connected to the rodless chamber of the puncture cylinder, the puncture needle being drivingly connected to the puncture cylinder, and the two distance measuring modules being oppositely arranged on the upper and lower sides of the puncture needle and being configured to detect the puncture distance from the puncture needle to an object to be punctured.

[0017] The puncture system control method comprises:

[0018] obtaining two puncture distances detected by the two distance measuring modules;

[0019] If both the puncture distances are greater than the first preset value, the extension accumulator is controlled to remain closed, and the extension control valve is controlled to be opened.

[0020] In an optional implementation, the puncture system control method further comprises:

[0021] If both of the puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is less than or equal to a second preset value, the extension accumulator is controlled to be opened for a preset time length, and then the extension control valve is controlled to be opened.

[0022] In an optional embodiment, the puncture system control method further comprises:

[0023] If both of the puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is greater than the second preset value, the extension accumulator and the extension control valve are controlled to be kept closed, and an alarm signal is sent out.

[0024] The application also provides a fire truck comprising the aforementioned puncture system, the puncture system comprising a controller, a puncture needle, a hydraulic system, and two distance measuring modules, the hydraulic system comprising a hydraulic pump, a puncture cylinder, an extension accumulator, an extension control valve, and an oil tank, a rodless cavity of the puncture cylinder being in fluid connection with the hydraulic pump, a rod cavity of the puncture cylinder being in fluid connection with the oil tank through the extension control valve;

[0025] The extension accumulator is in fluid connection with the rodless cavity of the puncture cylinder, the puncture needle is in transmission connection with the puncture cylinder, and the two distance measuring modules are oppositely arranged on the upper and lower sides of the puncture needle and are used for detecting the puncture distance between the puncture needle and a to-be-punctured object.

[0026] The controller is in communication connection with the extension accumulator, the extension control valve, and the two distance measuring modules, respectively, and is used for, when receiving a puncture instruction, controlling the extension accumulator to be kept closed and controlling the extension control valve to be opened if both of the puncture distances are greater than a first preset value.

[0027] Compared with the prior art, the puncture system provided by the application oppositely arranges distance measuring modules on the upper and lower sides of the puncture needle, and the two distance measuring modules detect the puncture distance between the puncture needle and a to-be-punctured object on the upper and lower sides of the puncture needle. When the controller receives a puncture instruction, the hydraulic system operates, at this time, the controller judges whether the current working condition is empty puncture training according to the two puncture distances detected by the two distance measuring modules. If both of the puncture distances are greater than a first preset value, it is determined that empty puncture training is performed, the extension accumulator is controlled to be kept closed, and the extension control valve is controlled to be opened, the puncture cylinder is driven to extend the puncture needle only under the action of the hydraulic pump, avoiding the participation of the extension accumulator in driving and reducing the kinetic energy of the puncture needle. Therefore, the puncture system provided by the application has the beneficial effects of automatically reducing the kinetic energy of the puncture needle during empty puncture training, preventing the equipment from being damaged, and improving safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 Partial structural diagram of the puncture system provided for the embodiments of the present application;

[0030] Figure 2 Partial structural block diagram of the hydraulic system of the puncture system provided for the embodiments of the present application;

[0031] Figure 3 Flow block diagram of the puncture system control method provided for the embodiments of the present application.

[0032] Icon: 110-needle; 120-hydraulic system; 121-puncture cylinder; 1211-rodless cavity; 1212-rod cavity; 122-extended accumulator; 123-extended control valve; 124-retracted accumulator; 125-retracted control valve; 130-distance measuring module. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art on the basis of the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly understood by those skilled in the art, only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "provided", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0040] Embodiment

[0041] Please refer to Figure 1 and Figure 2 , Figure 1 Fig. 1 shows a partial structure schematic diagram of a puncture system provided by the present embodiment, Figure 2 Fig. 2 shows a partial structure block diagram of a hydraulic system 120 of the puncture system.

[0042] The puncture system provided by the present embodiment comprises a controller, a puncture needle 110, a hydraulic system 120 and two distance measuring modules 130. The hydraulic system 120 comprises a hydraulic pump, a puncture oil cylinder 121, an extension accumulator 122, an extension control valve 123 and an oil tank. The rodless cavity 1211 of the puncture oil cylinder 121 is fluidly connected with the hydraulic pump, and the rod cavity 1212 of the puncture oil cylinder 121 is fluidly connected with the oil tank through the extension control valve 123. The extension accumulator 122 is fluidly connected with the rodless cavity 1211 of the puncture oil cylinder 121. The puncture needle 110 is drivingly connected with the piston rod of the puncture oil cylinder 121. The two distance measuring modules 130 are oppositely arranged on the upper and lower sides of the puncture needle 110, and are both used for detecting the puncture distance between the puncture needle 110 and the object to be punctured.

[0043] The controller is in communication connection with the extension accumulator 122, the extension control valve 123 and the two distance measuring modules 130 respectively, and is used for, when receiving a puncture instruction, controlling the extension accumulator 122 to keep closed and the extension control valve 123 to open, under the condition that the two puncture distances are both greater than a first preset value.

[0044] It can be understood that the measurement directions of the two distance measuring modules 130 are both parallel to the extension direction of the lancet 110. In actual application, when the controller receives a puncture instruction, the two puncture distances detected by the two distance measuring modules 130 are acquired, and if the two puncture distances are both greater than the first preset value, it indicates that there is no object to be punctured in front of the lancet 110 or the object to be punctured is far away, and it is determined that the current is empty puncture training.

[0045] Under the condition that it is determined that the current is empty puncture training, the controller controls the extension accumulator 122 to keep closed and not to participate in driving, and controls the extension control valve 123 to open, so that the hydraulic oil in the rod cavity 1212 of the puncture cylinder 121 can flow smoothly into the oil tank, and the hydraulic oil output by the hydraulic pump enters the rodless cavity 1211 of the puncture cylinder 121, driving the piston rod to drive the lancet 110 to extend.

[0046] It can be understood that, in the case that the extension accumulator 122 does not participate in driving, the puncture cylinder 121 is only driven by the hydraulic pump, and the kinetic energy is small, which can avoid excessive impact on parts, avoid parts loosening or damage, and significantly improve safety.

[0047] If the two puncture distances are both less than or equal to the first preset value, and the difference between the two puncture distances is less than or equal to a second preset value, it indicates that the lancet 110 is close to the object to be punctured, and the lancet 110 is substantially perpendicular to the object to be punctured, and it is determined that the current is actual puncture operation.

[0048] Under the condition that it is determined that the current is puncture operation, the controller controls the extension accumulator 122 to open, and after a preset time, controls the extension control valve 123 to open. It can be understood that, when the extension accumulator 122 is opened, since the extension control valve 123 is in a closed state, the pipeline between the rod cavity 1212 of the puncture cylinder 121 and the oil tank is not conductive, that is, the hydraulic oil in the rod cavity 1212 cannot flow back, the puncture cylinder 121 does not act, and the extension accumulator 122 is in an energy storage state.

[0049] After the extension accumulator 122 is opened for a preset time, the extension control valve 123 is controlled to open, so that the pipeline between the rod cavity 1212 and the oil tank is conductive, the high-pressure hydraulic oil stored in the extension accumulator 122 and the hydraulic oil output by the hydraulic pump flow into the rodless cavity 1211 of the puncture cylinder 121 together, driving the piston rod to drive the lancet 110 to quickly extend to puncture the object to be punctured.

[0050] In the embodiment, in order to ensure the puncture effect and prevent the safety accidents caused by the slip of the lancet 110 on the surface of the object to be punctured, when the controller receives the puncture instruction, if the two puncture distances are both less than or equal to the first preset value, but the difference between the two puncture distances is greater than the second preset value, the controller controls the extension accumulator 122 and the extension control valve 123 to keep closed, and sends an alarm signal to remind the operator to adjust the luffing angle of the arm frame, so that the lancet 110 is basically perpendicular to the surface of the object to be punctured, thereby preventing the puncture in the state that the lancet 110 is inclined to the surface of the object to be punctured, and causing the lancet 110 to slip or even causing a safety accident.

[0051] Preferably, in the embodiment, the first preset value is 400 mm, the second preset value is 30 mm, and the preset time length is 5 s.

[0052] In addition, in the embodiment, the hydraulic system 120 further includes a retraction accumulator 124 and a retraction control valve 125. The retraction accumulator 124 is fluidly connected to the pipeline between the extension control valve 123 and the oil tank. One end of the retraction control valve 125 is fluidly connected to the pipeline between the no-rod chamber 1211 of the puncture cylinder 121 and the hydraulic pump together with the extension accumulator 122, and the other end is fluidly connected to the pipeline between the extension control valve 123 and the rod chamber 1212 of the puncture cylinder 121.

[0053] During the extension action of the lancet 110, the retraction control valve 125 keeps closed. When the controller receives the retraction instruction, the extension control valve 123 and the extension accumulator 122 are controlled to keep closed, and the retraction control valve 125 is controlled to open, so that the hydraulic oil output by the hydraulic pump flows into the rod chamber 1212 of the puncture cylinder 121 through the retraction control valve 125, and the hydraulic oil in the no-rod chamber 1211 of the puncture cylinder 121 also flows into the rod chamber 1212 through the retraction control valve 125, so that the puncture cylinder 121 drives the lancet 110 to differentially retract.

[0054] In actual application, in order to enable the lancet 110 to quickly retract to the position, the retraction accumulator 124 and the extension control valve 123 can also be controlled to open, so that the retraction accumulator 124 participates in the driving.

[0055] It can be seen that the puncture system provided by the embodiment can automatically determine whether the current is the empty puncture training or the puncture operation when receiving the puncture instruction of the operator, and automatically reduce the kinetic energy of the lancet 110 in the case of determining the empty puncture training, thereby preventing the equipment from being damaged and improving the safety.

[0056] It can be understood that in actual application, even in the case of actual puncture operation, but due to misoperation and other reasons, the two puncture distances are greater than the first preset value, that is, the distance between the needle 110 and the object to be punctured is far away, the controller will also control the extension accumulator 122 to keep closed and not participate in driving, and only control the extension control valve 123 to open, so as to avoid excessive impact on the parts and avoid safety accidents caused by misoperation.

[0057] The embodiment also provides a puncture system control method applied to the puncture system. Figure 3 , Figure 3 The puncture system control method can include the following steps:

[0058] In step S101, the two puncture distances detected by the two distance measuring modules 130 are obtained.

[0059] In step S102, if the two puncture distances are greater than the first preset value, the extension accumulator 122 is controlled to keep closed, and the extension control valve 123 is controlled to open.

[0060] If the two puncture distances are greater than the first preset value, it indicates that there is no object to be punctured in front of the needle 110 or the distance between the needle 110 and the object to be punctured is far away, and it is determined that the current is empty training. In the case of determining that the current is empty training, the controller controls the extension accumulator 122 to keep closed and not participate in driving, and controls the extension control valve 123 to open, so that the hydraulic oil in the rod cavity 1212 of the puncture cylinder 121 can flow back to the oil tank smoothly, and the hydraulic oil output by the hydraulic pump enters the rodless cavity 1211 of the puncture cylinder 121, driving the piston rod to drive the needle 110 to extend.

[0061] It can be understood that in the case that the extension accumulator 122 does not participate in driving, the puncture cylinder 121 is only driven by the hydraulic pump, and the kinetic energy is small, which can avoid excessive impact on the parts, avoid loosening or damage of the parts, and significantly improve the safety.

[0062] In step S103, if the two puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is less than or equal to the second preset value, the extension accumulator 122 is controlled to open for a preset time, and then the extension control valve 123 is controlled to open.

[0063] If the two puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is less than or equal to the second preset value, it indicates that the distance between the needle 110 and the object to be punctured is close, and the needle 110 is substantially perpendicular to the object to be punctured, and it is determined that the current is actual puncture operation. Moreover, puncturing in the state that the needle 110 is substantially perpendicular to the object to be punctured can avoid the needle 110 slipping on the surface of the object to be punctured, obtain ideal puncture effect, and ensure the safety of the operation.

[0064] When the extension accumulator 122 is opened, because the extension control valve 123 is in a closed state, the pipeline between the rod cavity 1212 of the puncture oil cylinder 121 and the oil tank is not open, that is, the hydraulic oil in the rod cavity 1212 cannot flow back, the puncture oil cylinder 121 does not act, and the extension accumulator 122 is in an energy storage state. After the extension accumulator 122 is opened for a preset time, the extension control valve 123 is controlled to be opened, so that the pipeline between the rod cavity 1212 and the oil tank is open, and the high-pressure hydraulic oil stored in the extension accumulator 122 and the hydraulic oil output by the hydraulic pump flow into the rodless cavity 1211 of the puncture oil cylinder 121 together, driving the piston rod to drive the needle 110 to quickly extend to puncture the object to be punctured.

[0065] In step S104, if both puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is greater than the second preset value, the extension accumulator 122 and the extension control valve 123 are controlled to remain closed, and an alarm signal is sent.

[0066] It can be understood that, in the actual puncture operation process, there may be a case that the needle 110 and the object to be punctured have reached the ideal distance, but the needle 110 is inclined to the surface of the object to be punctured by a large angle, that is, both puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is greater than the second preset value. If puncture is performed in this case, the needle 110 is likely to slip on the surface of the object to be punctured, and cannot achieve the ideal puncture effect, and even may damage the needle 110 and cause a safety accident.

[0067] To solve this problem, in the embodiment, when both puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is greater than the second preset value, the controller determines that the puncture condition is not met, controls the extension accumulator 122 and the extension control valve 123 to remain closed, and sends an alarm signal to remind the operator to adjust the luffing angle of the arm frame until the needle 110 is basically perpendicular to the surface of the object to be punctured, so as to prevent the ideal puncture effect and ensure the operation safety. The puncture system control method provided in the embodiment can automatically judge the empty puncture training and the puncture operation, and automatically reduce the kinetic energy of the needle 110 during the empty puncture training, so as to prevent the equipment from being damaged and improve the safety.

[0068] In addition, the embodiment also provides a fire truck, which comprises the foregoing puncture system, and the controller in the puncture system is used to execute the foregoing puncture system control method.

[0069] Benefiting from the advantages of the puncture system and the puncture system control method, the fire truck provided in the embodiment has the characteristic of higher operation safety.

[0070] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A lancing system characterized by, The puncture system comprises a controller, a puncture needle (110), a hydraulic system (120) and two distance measuring modules (130), the hydraulic system (120) comprises a hydraulic pump, a puncture cylinder (121), an extension accumulator (122), an extension control valve (123) and an oil tank, a rodless cavity (1211) of the puncture cylinder (121) is in fluid connection with the hydraulic pump, a rod cavity (1212) of the puncture cylinder (121) is in fluid connection with the oil tank through the extension control valve (123); The extension accumulator (122) is in fluid connection with the rodless cavity (1211) of the puncture cylinder (121), the puncture needle (110) is in driving connection with the puncture cylinder (121), and the two distance measuring modules (130) are oppositely arranged on the upper and lower sides of the puncture needle (110) and are used for detecting the puncture distances from the puncture needle (110) to an object to be punctured. The controller is in communication connection with the extension accumulator (122), the extension control valve (123) and the two distance measuring modules (130), respectively, and is used for, when receiving a puncture instruction, controlling the extension accumulator (122) to keep closed and controlling the extension control valve (123) to open, under the condition that the two puncture distances are greater than a first preset value.

2. The lancing system of claim 1, wherein, The first preset value is 400 mm.

3. The lancing system of claim 1, wherein, The controller is further used for, when receiving the puncture instruction, controlling the extension control valve (123) to open after the extension accumulator (122) is opened for a preset time length, under the condition that the two puncture distances detected by the two distance measuring modules (130) are less than or equal to the first preset value and the difference between the two puncture distances is less than or equal to a second preset value.

4. The lancing system of claim 3, wherein, The second preset value is 30 mm.

5. The lancing system of claim 3, wherein, The preset time length is 5 s.

6. The lancing system of claim 1, wherein, The hydraulic system (120) further comprises a retraction accumulator (124) and a retraction control valve (125), the retraction accumulator (124) is in fluid connection on a pipeline between the extension control valve (123) and the oil tank, one end of the retraction control valve (125) is in common fluid connection with the extension accumulator (122) on a pipeline between the rodless cavity (1211) of the puncture cylinder (121) and the hydraulic pump, and the other end is in fluid connection on a pipeline between the extension control valve (123) and the rod cavity (1212) of the puncture cylinder (121).

7. A puncture system control method characterized by, The puncture system control method is applied to the puncture system according to any one of claims 1-6 and comprises the following steps: obtaining two puncture distances detected by the two distance measuring modules (130); if the two puncture distances are greater than the first preset value, controlling the extension accumulator (122) to keep closed and controlling the extension control valve (123) to open.

8. The puncture system control method according to claim 7, wherein The puncture system control method further comprises the following steps: if the two puncture distances are less than or equal to the first preset value and the difference between the two puncture distances is less than or equal to a second preset value, controlling the extension control valve (123) to open after the extension accumulator (122) is opened for a preset time length.

9. The puncture system control method according to claim 7, wherein The puncture system control method further comprises: If both of the puncture distances are less than or equal to the first preset value, and the difference between the two puncture distances is greater than a second preset value, the extended energy accumulator (122) and the extended control valve (123) are controlled to remain closed, and an alarm signal is sent out.

10. A fire apparatus characterized by, A puncture system comprising the puncture system according to any one of claims 1-6.

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