Movable fast attack gun

Abstract

The utility model relates to the technical field of fire fighting equipment, and discloses a movable fast attack cannon, which comprises a sleeve arranged at one end of a cannon body and capable of moving along the axial direction of the cannon body; a first gap is formed between the sleeve and the cannon body, and the size of the first gap is changed along with movement of the sleeve; the shaft sleeve is arranged on the cannon body and can move in the axial direction of the cannon body; one end of the shaft sleeve extends out of the cannon body, a second gap is formed between the shaft sleeve and the sleeve, and the axial length of the second gap along the sleeve is changed along with movement of the shaft sleeve; and the driving piece is arranged on the gun body, connected with the sleeve and used for driving the sleeve to move. According to the technical scheme, the technical problem that in the prior art, switching of jet modes of the fast attack gun is complex can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field especially relates to a mobile quick attack cannon. BACKGROUND

[0002] The quick attack cannon is a portable high-pressure jet device in fire fighting equipment, which is usually composed of a cannon body, a support, a rotary interface and a high-pressure water hose, and can be quickly deployed and jet large-flow water or foam extinguishing agent. Its characteristics are long range, large flow and flexible control, and it is suitable for complex scenes such as oil fire, chemical fire or high-rise building fire, can help firefighters suppress the fire at a safe distance, and is especially suitable for rapid attack fire extinguishing in the early stage of the fire or in narrow areas, effectively improving the fire extinguishing efficiency and reducing the personnel risk.

[0003] At present, the existing quick attack cannon mode is single, and the range and flow parameters are fixed, which leads to the need for manual replacement of equipment or manual adjustment of parts when facing different fire conditions (such as oil fire requiring foam coverage, solid fire requiring high-pressure water column, and long distance requiring high range), which is complicated and time-consuming to operate, and is easy to delay the fire extinguishing opportunity. UTILITY MODEL CONTENTS

[0004] The application discloses a mobile quick attack cannon to solve the technical problem of complex switching of the quick attack cannon jet mode in the related art.

[0005] In order to solve the above problems, the utility model adopts the following technical scheme:

[0006] A mobile quick attack cannon, comprising:

[0007] A sleeve is arranged at one end of the cannon body and can move along the axial direction of the cannon body; the sleeve and the cannon body form a first gap therebetween, and the size of the first gap changes with the movement of the sleeve;

[0008] A shaft sleeve is arranged on the cannon body and can move along the axial direction of the cannon body; one end of the shaft sleeve extends to the outside of the cannon body and forms a second gap with the sleeve, and the length of the second gap along the axial direction of the sleeve changes with the movement of the shaft sleeve;

[0009] A driving member is arranged on the cannon body and connected with the sleeve, and is used for driving the sleeve to move.

[0010] In some schemes, the cannon body has a flared section with an increasing inner diameter, and the sleeve and the flared section form the first gap therebetween.

[0011] In some schemes, the outer wall of the cannon body is provided with a spiral groove, and the shaft sleeve is embedded in the spiral groove; with the rotation of the shaft sleeve, the shaft sleeve moves along the axial direction of the cannon body.

[0012] In some schemes, the outer wall of the shaft sleeve is provided with a rubber sleeve.

[0013] In some schemes, the mobile quick attack gun further comprises a locking part arranged on the rubber sleeve and used for limiting rotation of the shaft sleeve.

[0014] In some schemes, the driving part comprises a screw rod, one end of which is connected with the gun body through a support and the other end is connected with the sleeve.

[0015] The technical scheme adopted by the utility model can achieve the following beneficial effects:

[0016] The mobile quick attack gun of the application can connect with a water source in the working state, and the water flowing through the gun body is sprayed outward through the first gap, and the design of moving the sleeve along the gun body can quickly adjust the outlet cross-sectional area of the first gap without replacing parts, so as to accurately control the flow and spraying pressure of the fire extinguishing agent. The length of the second gap formed by the shaft sleeve and the sleeve is adjustable, and the extension range of the gap along the sleeve is changed by moving the shaft sleeve axially, so that the water mist and water column modes are quickly switched: when the second gap is shortened, the water flow is dispersed into fine mist due to the turbulent effect after being extruded, which is suitable for fire field cooling, combustion inhibition and smoke diffusion reduction; and when the second gap is lengthened, the water flow path is smooth and concentrated, forming a high-pressure water column mode, which can accurately attack a long-distance fire source or penetrate a high-temperature area. This structure linkage mechanism does not need additional switching devices, and can flexibly adapt to the fire extinguishing scene requirements by dynamic adjustment of the gap, and can balance the coverage range and penetration, and significantly improve the tactical diversity and operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0018] Figure 1 is the isometric view of the mobile quick attack gun disclosed by some embodiments of the application;

[0019] Figure 2 is the top view of the mobile quick attack gun disclosed by some embodiments of the application;

[0020] Figure 3 is Figure 2 the sectional view of A-A in Fig.

[0021] Figure 4 is Figure 3 the enlarged view of A in Fig.

[0022] Figure 5 is the isometric view of the hidden part structure of the mobile quick attack gun disclosed by some embodiments of the application.

[0023] Fig.:

[0024] 100 - barrel, 110 - first gap, 120 - second gap, 130 - flared section, 140 - helical groove;

[0025] 200 - sleeve, 210 - drive member;

[0026] 300 - shaft sleeve, 310 - rubber sleeve, 320 - locking portion, 330 - drive member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope protected by the utility model.

[0028] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" and the like are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0029] The existing fast attack cannon lacks mode switching capability, usually only supports a single spray mode (such as water column or foam), and the range and flow parameters are fixed, resulting in the need for manual replacement of equipment or manual adjustment of parts when facing different fire conditions (such as oil fire requiring foam coverage, solid fire requiring high pressure water column, and long distance requiring high range), which is tedious and time-consuming to operate, and is likely to delay the fire extinguishing opportunity.

[0030] The application will be described in detail below with reference to the accompanying drawings Figures 1 to 5 and specific embodiments and their application scenarios.

[0031] Some embodiments of the application disclose a mobile fast attack cannon, comprising a barrel 100, a sleeve 200, a shaft sleeve 300 and a drive member 210.

[0032] As Figures 1-4As shown, the sleeve 200 is arranged at one end of the barrel 100 and can move axially along the barrel 100; the first gap 110 is formed between the sleeve 200 and the barrel 100, and the size of the first gap 110 changes with the movement of the sleeve 200. In the working state, the barrel 100 is connected to a water source, and the water flow flowing through the barrel 100 is ejected outward through the first gap 110. Through the design that the sleeve 200 moves along the barrel 100, the outlet cross-sectional area of the first gap 110 can be quickly adjusted without replacing parts, so as to accurately control the flow and ejection pressure of the fire extinguishing agent.

[0033] In the embodiment, in order to make the sleeve 200 slide stably, part of the structure of the sleeve 200 can be slidably connected with the barrel 100 (not shown in the figure).

[0034] As shown in the figure, Figure 4 The shaft sleeve 300 is arranged in the barrel 100 and can move axially along the barrel 100; one end of the shaft sleeve 300 extends out of the barrel 100 and forms the second gap 120 with the sleeve 200, and the length of the second gap 120 along the sleeve 200 changes with the movement of the shaft sleeve 300. The second gap 120 formed by the shaft sleeve 300 and the sleeve 200 has an adjustable length, and the extension range of the gap along the sleeve 200 changes with the axial movement of the shaft sleeve 300, so that the water mist and water column modes can be quickly switched: when the second gap 120 is shortened, the water flow is dispersed into fine water mist due to the turbulent effect after being extruded, which is suitable for fire temperature reduction, combustion suppression and smoke dispersion reduction; and when the second gap 120 is lengthened, the water flow path is smooth and concentrated, forming a high-pressure water column mode, which can accurately attack long-distance fire sources or penetrate high-temperature areas. This structure linkage mechanism does not require additional switching devices, and can flexibly adapt to the needs of fire extinguishing scenes through dynamic adjustment of the gap, and can balance the coverage range and penetration, significantly improving the tactical diversity and operation convenience.

[0035] As shown in the figure, Figure 4 The driving member 210 is arranged in the barrel 100 and connected with the sleeve 200, and is used to drive the sleeve 200 to move. Through the arrangement of the driving member 210, the sleeve 200 can be quickly driven to move, and then the size of the first gap 110 can be quickly adjusted.

[0036] As shown in the figure, Figure 4As shown, the barrel 100 has a flared section 130 with gradually increasing inner diameter, and the sleeve 200 and the flared section 130 form a first gap 110. The flared first gap 110 formed by the flared section 130 and the sleeve 200 can adjust the cross-sectional area of the first gap 110 by moving the sleeve 200 axially. When the first gap 110 is reduced, the cross-sectional area of the flow passage between the flared section 130 and the sleeve 200 is reduced, the water flow is accelerated to form a high-pressure concentrated jet, and the penetration power is improved. When the first gap 110 is increased, the cross-sectional area of the flow passage between the flared section 130 and the sleeve 200 is expanded, the flow rate is increased and the flow velocity is gentle, and the large-range coverage mode can be switched.

[0037] As shown in Figure 4 and Figure 5 , the outer wall of the barrel 100 is provided with a spiral groove 140, and the shaft sleeve 300 is embedded in the spiral groove 140. With the rotation of the shaft sleeve 300, the shaft sleeve 300 moves axially along the barrel 100. The embedded design of the spiral groove 140 and the shaft sleeve 300 can drive the shaft sleeve 300 to move axially along the spiral track by rotating the shaft sleeve 300, which directly converts the rotary motion into linear displacement, and is simple and convenient to operate.

[0038] As shown in Figures 1-4 , the outer wall of the shaft sleeve 300 is provided with a rubber sleeve 310. By providing the rubber sleeve 310, the vibration caused by the impact of high-pressure water flow is buffered, and the operator can rotate the shaft sleeve 300 under the working state of the barrel 100.

[0039] As shown in Figure 1 , Figure 2 and Figure 4 , the mobile quick attack gun also includes a locking portion 320, which is arranged on the rubber sleeve 310 and is used to limit the rotation of the shaft sleeve 300. The design of integrating the locking portion 320 in the rubber sleeve 310 can limit the rotation angle of the shaft sleeve 300 by mechanical limiting, prevent the shaft sleeve 300 from moving accidentally along the spiral groove 140 caused by high-pressure injection or vibration, and ensure that the length of the second gap 120 is maintained stably after manual adjustment.

[0040] In this embodiment, the locking portion 320 is preferably a locking nut. When it is necessary to limit the rotation of the shaft sleeve 300, the locking nut is rotated so that the end face of the locking nut abuts against the shaft sleeve 300, and the friction force is used to limit the rotation of the shaft sleeve 300.

[0041] As shown in Figure 4As shown, the driving member 210 includes a screw rod, one end of which is connected with the barrel 100 through a bracket (not shown in the figure), and the other end is connected with the sleeve 200 in a matching manner. The rigid connection of the screw rod and the bracket ensures the driving stability, while the threaded matching of the screw rod and the sleeve 200 converts the rotary motion into the accurate axial displacement of the sleeve 200, so as to realize the linear and continuous adjustment of the first gap 110 (flow / pressure). Meanwhile, the screw rod structure has mechanical self-locking property, which prevents displacement deviation caused by high-pressure backflow.

[0042] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0043] In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A mobile rapid-fire artillery piece, characterized in that, include: A sleeve is disposed at one end of the gun body and can move along the axial direction of the gun body; a first gap is formed between the sleeve and the gun body, and the size of the first gap changes as the sleeve moves; A bushing is disposed on the gun body and is movable along the axial direction of the gun body; one end of the bushing extends out of the gun body and forms a second gap with the sleeve, and the length of the second gap along the axial direction of the sleeve changes as the bushing moves; A driving component is disposed on the gun body and connected to the sleeve, for driving the sleeve to move.

2. The mobile rapid-fire artillery according to claim 1, characterized in that, The gun body has a flared section with a gradually increasing inner diameter, and the first gap is formed between the sleeve and the flared section.

3. A mobile rapid-fire artillery piece according to claim 1, characterized in that, The outer wall of the gun body is provided with a spiral groove, and the bushing is embedded in the spiral groove; as the bushing rotates, the bushing moves along the axial direction of the gun body.

4. A mobile rapid-fire artillery piece according to claim 3, characterized in that, The outer wall of the bushing is fitted with a rubber sleeve.

5. A mobile rapid-fire artillery piece according to claim 4, characterized in that, The mobile rapid-fire gun also includes a locking part, which is disposed on the rubber sleeve and is used to restrict the rotation of the bushing.

6. A mobile rapid-fire artillery piece according to claim 1, characterized in that, The driving component includes a lead screw, one end of which is connected to the gun body via a bracket, and the other end is connected to the sleeve.

Images