Device for ejecting fluid emission or fluid jet onto target body

Abstract

The utility model relates to a device (10) used for ejecting or ejecting a fluid emission object or a fluid beam to a target body, the device comprises a handheld appliance (100) with a pump (11) used for ejecting the fluid emission object, the handheld appliance (100) is provided with an operating rod (1) and a handle element (2), and a containing part (3) used for containing a replaceable fluid storage tank (4) is arranged in the handheld appliance (100). The fluid tank (4) is a preferably pressure-free injection tank with an integrated tank valve (41), and the receptacle (3) is provided with a quick-change system (7) for the fluid tank (4) which can be connected in a fluid-tight manner to the discharge section (6) by means of a coupling device (5), and wherein the fluid tank (4) is a preferably pressure-free injection tank with an integrated tank valve (41). The utility model relates to a quick change system, by means of which a fluid tank (4) can be held and snapped in a spring-loaded manner in a receptacle (3), and the fluid tank (4) can be inserted in a locked manner by releasing a lever (8), but in a releasable manner when needed.

Description

Technical Field

[0001] The utility model relates to a device for ejecting or spraying a fluid projectile or a fluid beam onto a target body, the device comprising a handheld device, the handheld device having a pump and a joystick for operating the device. Such a device is used to spray pepper spray or other such protective fluids for the purpose of self-defense, for example. The device is used to reliably spray such irritants for defense in an emergency. Other such devices are also used to spray or eject other liquids or fluids instead of irritants.

[0002] The utility model is a device for spraying or shooting fluid projectiles, wherein a fluid storage tank is arranged in a receiving part of the device. The device is operated by means of a pump, and the pump sprays or shoots the fluid or liquid accordingly via a discharge section by sucking fluid or liquid from the fluid storage tank when operating the device. Background Art

[0003] In such devices, it has been found that the amount of liquid, such as irritant, available in the fluid tank is sometimes not sufficient for the necessary longer use of the irritant spraying device. Therefore, it is proposed in the prior art to be able to use a larger amount of the available liquid or fluid by means of an external larger tank and a connecting hose. In addition, devices have been proposed in the prior art in which the fluid tank is integrated as a single element or hose in a replaceable manner in the handpiece of the device.

[0004] However, these systems have the disadvantage that a relatively complex operation on the device is required to replace the fluid tank: the screwed-in or inserted fluid tank must be unscrewed and the fluid tank, which is refilled with liquid or stimulating fluid, must then be inserted again into the device using a threaded connection or the like and fixed in the device to the internal valve. This is often not easily possible for security personnel or the like when using such devices. Therefore, it is often necessary to carry a plurality of individual devices during the critical, prolonged use of such devices in order to provide the security personnel with enough liquid stimulating material for the injection. Utility Model Content

[0005] Against this background, the object of the invention is to provide a device for ejecting or discharging fluid projectiles or liquids with a fluid tank and a pump, with which a long-term effective use can be achieved even in critical situations and without cumbersome operations such as replacement of the fluid tank. In addition, the device according to the invention should be easy to operate in order to eject the fluid without requiring demanding operations at the connections of such individual elements of the device, such as valves or retaining clamps. Intuitive and even feasible continued use of such a device under difficult conditions should also be ensured when the fluid tank is emptied.

[0006] This object is achieved with a device according to the invention. Advantageous embodiments and improvements of the invention are the subject matter of the dependent claims.

[0007] According to the utility model, a device for ejecting or spraying a fluid projectile or a fluid jet onto a target body is proposed, the device comprising a hand-held device with a pump for ejecting the fluid projectile, wherein the hand-held device has a joystick and a handle element, and wherein a receiving part is provided for receiving a replaceable fluid tank, the fluid tank being connectable to a discharge section of the device in a fluid-tight manner by means of a coupling device, wherein the device is characterized in that the fluid tank is a preferably pressureless spray tank with an integrated tank valve, and the receiving part is provided with a quick-change system for the fluid tank, by means of which the fluid tank can be held and snapped into the receiving part in a spring-loaded manner, and can be inserted in a locking manner (gesichert) but releasably when necessary by releasing a lever or a locking slide. Thus, the utility model relates to a device with a novel shape of a fluid tank, the fluid tank being provided with a corresponding coupling device in the form of a spray tank. For this purpose, the spray tank has an integrated tank valve on its upper side and is provided with mechanisms such as protrusions, flanges, etc., which allow it to be received and retained in the device by means of a quick-change system. A fluid storage tank in the form of a spray tank provided with an integrated tank valve has, for example, a rigid columnar body. A coupling device with corresponding connecting elements is present at the upper end, which is used for loading and reliable retention by means of a quick-change system. Like the fluid storage tank provided as a spray tank, the coupling device also has corresponding seals and matching seals on the device side. By easily loading the fluid storage tank provided as a spray tank into the receiving portion, the device can be provided fully functional. The liquid present in the fluid storage tank, such as, for example, a stimulant liquid, can be sucked out of the fluid storage tank by the pump of the device and ejected through the discharge section. This also ensures effective ejection and reliable operation of the device at any time for a long time.

[0008] The device has the following advantages in particular, that is, the emptied fluid tank can be easily replaced by the quick-change system. The filled spare fluid tank can be easily loaded by means of the quick-change system. By being held at the fluid tank under spring load, the emptied fluid tank or the spray tank can be taken out by easy manipulation provided from the outside. A new cartridge, spray tank or fluid tank filled with fluid can be easily loaded into the system without the need for laborious manipulation at the utensil or handle element. By direct loading, not only an automatic connection is realized so that the fluid is discharged and sprayed by the device, but also the sealed retention of the fluid tank in the device is realized. Thus, the operator can also implement the rapid replacement and refilling of the device in critical situations by using the utility model. This does not require complicated operations of screws, fixing clips, etc., because the replacement can be carried out in a faster and easier form here by easy loading and replacement according to the style of the magazine. It can be easily operated even in difficult visual conditions and, for example, with gloves, thereby allowing a reliable and long-term use of the device, for example for the purpose of self-defense or attack by security personnel.

[0009] According to an advantageous design of the utility model, the fluid storage tank has a columnar spray tank, which is provided with a directly integrated valve at its upper end. The fluid storage tank configured as a spray tank is thus a completely self-sufficient component that prevents liquid from flowing out, which can be carried by the operator of the device to a certain extent as a refill pack. For example, the integration of the fluid valve can be achieved by a valve that is clamped on the cover at the upper side. With such a measure, the fluid storage tank itself is equipped with a valve in an integrated manner and can then be opened accordingly for the use situation by easily inserting or pushing it into the receiving portion. Thus, in the design of the device, no additional opening valve / closing valve is required in the handle or other components of the device for removing fluid from the fluid storage tank.

[0010] According to another advantageous embodiment of the invention, the coupling device has a snap-in / clamping connection for inserting and holding the fluid tank in the receiving portion. The receiving portion of the fluid tank can be located, for example, in a handle element, in which a corresponding holding portion for the coupling device of the fluid tank is located at the upper inner section: the coupling device has a snap-in / clamping connection for this purpose, that is to say, for example, in a manner that overcomes the spring tension of the holding part and allows the fluid tank to be held and inserted in the device in a simplified manner. Such a snap-in / clamping connection can be ensured, for example, by a spring-loaded locking slide, which is arranged and supported in a manner that can be moved transversely to the longitudinal axis of the fluid tank under prestressing by means of a spring and has an inclined surface or edge section that points toward the fluid tank. When a new filled fluid tank is inserted, this locking slide is then displaced due to the inclined surface of the spring-loaded locking slide and, after engaging a radial groove or edge section, for example, protruding at the upper end of the fluid tank, the fluid tank is then securely held in the device for use by snapping into the snap connection.

[0011] According to another advantageous design of the utility model, there is a disc-shaped seal at the fluid storage tank, which has a larger or wider sealing surface in a direction transverse to the longitudinal direction of the fluid storage tank, and the sealing surface cooperates with a cap-type seal integrated in the receiving part on one side of the device, and the cap-type seal is used as a counterpart element for effectively sealing relative to the fluid when the fluid storage tank is installed. Instead of the O-ring seal used for this purpose in the prior art, such a seal acting on the surface has the advantage that the undesired outflow of liquids, such as irritants, can be reliably avoided. The relatively wide, large-area seal on the surface on one side of the fluid storage tank cooperates with a counterpart seal in the form of a cap-type seal. In this way, the installation and operation of the valve opening are easily achieved, and despite this, a reliable and effective sealing of the fluid-conveying elements in the interior of the device is achieved.

[0012] According to another advantageous design of the utility model, the fluid storage tank is a spray tank with a substantially cylindrical cross-sectional shape, in which a liquid as a fluid substantially without pressure is contained in the spray tank so as to be sucked and discharged by means of a pump. The walls of the fluid storage tank are substantially parallel to each other, which improves the insertion and retention in the receiving portion. Such a pressure-free cartridge or fluid storage tank also has the following advantages, namely: it is not necessary for the user of the system to carry a replaceable cartridge or fluid storage tank under pressure. The fluid projectile or liquid beam with stimulant is taken out and discharged or ejected by the suction of the pump in the device. The pump can be a pump that acts mechanically by manipulating the device at a joystick, or a pump that is installed in the interior of the device together with an electric drive device for sucking and discharging fluid.

[0013] According to another advantageous design of the utility model, the quick-change system of the device is provided with an ejection mechanism that can be operated by the rod and is used to eject the emptied fluid storage tank from the receiving part. Such an ejection mechanism can be realized, for example, by a compression coil spring in the interior of the coupling device of the quick-change system. The spring can be pre-tensioned, for example, so that after releasing the locking state of the installed fluid storage tank, the fluid storage tank automatically ejects from the interior of the quick-change system of the device with a certain strength. This makes it easier to replace the fluid storage tank even in difficult situations, such as in the dark or when the user wears gloves.

[0014] According to another advantageous design of the utility model, the pump for ejecting or discharging the fluid is activated by means of a joystick at the handle element in order to generate a suction force acting on the fluid or liquid in the interior of the fluid storage tank. The activation of the pump can be carried out, for example, by an electric button, which automatically switches on the corresponding pump in the interior of the device and stops again after releasing the joystick. If, for example, a corresponding piston pump or diaphragm pump is installed in the interior of the device, the pump can also be operated mechanically. The fluid or liquid present in the fluid storage tank can then also be sent out of the fluid storage tank without the pressure acting in the interior and ejected onto the target body through the discharge section of the device.

[0015] According to another advantageous design of the utility model, a locking slide that can be approached in sections from the outer side surface of the handle element is provided, which is used to fix and release and eject the emptied fluid storage tank, which can be stopped by means of a stopper to prevent the quick-change system from being accidentally manipulated when operating the device. Such a locking slide can be placed laterally at a protruding section, for example, at the upper flange of the fluid storage tank. If the locking slide is automatically pressed laterally in the guide groove (for example, overcoming the elastic force) by inserting the fluid storage tank, the fluid storage tank is stopped and fixed inside the receiving part of the quick-change system. After the locking slide is released against the elastic force and the emptied fluid storage tank can be ejected by a corresponding rod or button. Such a locking slide can be realized, for example, by an inclined action surface on one side of the fluid storage tank, by which the lateral movement of the locking slide in the corresponding groove or retaining portion can be achieved against the elastic force. Likewise, other forms of locking slides for fixedly and automatically retaining and releasably receiving in a quick-change system of a fluid storage tank can be used within the scope of the present invention.

[0016] According to another advantageous embodiment of the invention, the coupling device and the quick-change system are implemented in the receiving part for the fluid tank by means of a purely mechanical spring-loaded element. The device is thus not susceptible to interference. Therefore, no laborious operation of, for example, electric buttons, drive devices or operating holders is required. By using corresponding springs and movable locks, slides, rods, etc. in a purely mechanical manner, it is possible to provide a coupling device and a quick-change system in the device that are not susceptible to interference, so that they can be used reliably and permanently even in difficult environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following describes other advantages, features and aspects of the present invention in more detail with the aid of an embodiment of the device according to the present invention in conjunction with the accompanying drawings. In the accompanying drawings:

[0018] Figure 1 A schematic side view of a first embodiment of the device according to the present invention together with an installed fluid storage tank in the quick-change system is shown;

[0019] Figure 2 A side view of an exemplary embodiment of the device according to the invention is shown together with an explanation of the replacement of an emptied fluid tank by unlocking the quick-change system or coupling device;

[0020] Figure 2a and Figure 2bA detailed view showing an embodiment of the device according to the present invention in terms of the shape of the sealing assembly of the fluid storage tank and the coupling device;

[0021] Figure 3 A detailed view of an embodiment according to the present invention is shown to illustrate the installation and sealing of a fluid storage tank in a quick-change system having a coupling device according to the present invention;

[0022] Figure 3a , Figure 3b and Figure 3c A detailed view of the individual elements of the quick-change system according to the invention is shown in one exemplary embodiment of the device with regard to a mechanism which secures and unlocks a holder for a fluid tank by means of a spring-loaded locking slide mounted within a receptacle of the device. DETAILED DESCRIPTION

[0023] exist Figure 1 , a first embodiment of a device 10 according to the invention is shown in a schematic cross-sectional view in the form of a handheld device 100 for ejecting a fluid from a fluid tank 4. The device 10 with the handheld device 100 is used for self-defense purposes and for ejecting, for example, a pepper spray or an irritant fluid, which a person can use to defend himself when attacked. Such a handheld device 100 is implemented as a device 10 in which a joystick 1 is arranged on a handle element 2, by means of which the ejection or ejection of a fluid or irritant liquid from the fluid tank 4 can be caused through a discharge section 6. For this purpose, a pump 11 is present in the interior of the handheld device 100, by means of which the following fluid is sucked in and discharged through the discharge section 6, which fluid is stored in the fluid tank 4 without a worthy pressure.

[0024] According to the invention, the device 10 is provided with a specific quick-change system 7 for the placement and replacement of the fluid tank 4 in the device 10: the quick-change system 7 comprises a coupling device 5 with a valve 9, which is preferably directly integrated on the upper side in the fluid tank 4. By means of a counter-seal, for example in the form of a cap seal 14 and a disc-shaped seal 13 on one side of the receiving portion 3 for the fluid tank 4 in the device 10, a fluid-tight connection is achieved by means of the coupling device 5 when the fluid tank 4 is inserted into the handle element 2 (see Figure 1). The coupling device 5 and the quick-change system 7 are provided in the interior of the hand-held device 100 with a release lever or a locking slide 8 which is provided specifically for this purpose and which is arranged in the interior at the upper end of the receiving part 3 for the fluid reservoir 4 in a prestressed manner by means of a spring 15. The release lever 8 has a bevel 17 in the present example, which interacts with a projection 16 or an edge of the fluid reservoir 4 so that when pushed in, the edge 16 is locked in the interior at the receiving part 3 by the locking slide 8 and is firmly fixed there. At the same time, the valve 9 on the fluid reservoir 4 is automatically opened and a fluid-tight connection is established between the seals 13, 14 in the interior. By operating the operating lever 1, the pump 11 is activated and sucks in the liquid in the fluid reservoir 4 and discharges it at the discharge section 6 as a so-called fluid ejection. If the liquid in the fluid storage tank 4 is about to run out, the new full spare fluid storage tank 4 can be easily replaced and loaded quickly and without problems by the quick replacement system 7 according to the utility model. Figure 2 For this purpose, a lateral unlocking button 12 is actuated in the upper region of the handle element 2 of the device 10 , as indicated by an arrow in the side view.

[0025] After the unlocking button 12 is operated, the locking slide or the release rod 8 in the interior of the receiving portion 3 is pressed back against the force of the spring 15, so that the fluid storage tank 4 slides downward or even pops out slightly, as shown in FIG. Figure 2 The arrow in the Figure 1 The fluid storage tank 4 is preferably implemented as a substantially cylindrical spray can with walls that are as parallel as possible and with a liquid or fluid stored in the interior without pressure, which can be inserted into the interior of the receiving part 3 in a sealed and automatically opening manner through a valve 9 and a disk seal 13 or a cap seal 14 in the manner of a magazine. According to an advantageous aspect of the utility model, the wall of the fluid storage tank is formed of a relatively rigid material in the manner of a barrel or cylindrical spray can.

[0026] With this novel quick-change system 7 for such a hand-held device 100 for spraying liquids or fluids, the user can quickly and reliably refill and replace the fluid reservoir 4 under pressure. By simply pressing the unlocking button 12 or the unlocking lever that cooperates with the spring-loaded locking slide 8 or the release lever, the spray can (see FIG. 1 ) that is locked in the interior as the fluid reservoir 4 is squeezed out in the emptied state. Figure 1 and Figure 2An automatic ejection mechanism of the quick-change system is provided, which, for example, also causes the fluid tank 4 to slide out downwards by means of a spring in the interior of the receiving portion 3 of the handle element 2 (see Figure 2 ). Alternatively, the fluid storage tank 4 may be slid out based solely on gravity.

[0027] exist Figure 2a , an embodiment of a fluid tank according to the invention is shown in detail together with a coupling device 5 and a valve 9 at the upper end. Here, a substantially cylindrical fluid tank 4 is shown as a spray tank, which can be pushed in from below and inserted into the handle element 2 and the receptacle 3 as a replaceable cartridge. At the upper end, the fluid tank 4 has a projection 16 or edge that protrudes slightly laterally in a convex manner and can interact with the inclined surface 17 of the release lever 8 or the locking slide. This process is described in detail in FIG. Figure 3 , Figure 3a , Figure 3b and Figure 3c The specific details and particulars of the corresponding co-acting elements are used to illustrate.

[0028] Figure 2b The coupling device 5 is shown together with cooperating elements for sealing when the valve 9 of the fluid tank 4 is pushed in and opened. A relatively wide disk-shaped seal 13 on the upper, diameter-wide element of the coupling device 5 cooperates sealingly with a cap-type seal 14 which engages therein from below, so that, as in Figure 2a As shown in FIG. 1 , when the fluid tank 4 is inserted, sealing automatically occurs when the valve 9 on the fluid tank 4 is opened.

[0029] according to Figure 3 to Figure 3c The release lever 8 or locking slide of the embodiment shown in the drawing has here, for example, a substantially L-shape and is implemented with an outwardly protruding section as an unlocking button 12, which then appears to the user according to Figure 2 It is accessible from the outside on the upper side of the handle element 2. The release lever 8 surrounds approximately one quarter of the upper flange of the projection 16 of the fluid reservoir and is preloaded with a helical spring 15 on the inner side of the receptacle 3. A bevel 17 is provided in the region of the projection 16 or edge pointing toward the fluid reservoir 4, which acts against the spring force of the spring 15 when the fluid reservoir 4 is inserted into the receptacle 3 to achieve locking (see Figure 3a and Figure 3c ).exist Figure 1In the installed state shown in , the fluid tank is then securely held in the interior of the device 10 and is available for immediate use without having to open valves or actuate threaded connections or additional closures for securing the fluid tank 4 .

[0030] After emptying, the empty fluid tank 4 can then be removed by the unlocking button 12 and a new, filled, replaceable fluid tank 4 can be loaded again. With the present invention, a novel coupling of a non-pressurized spray can as a fluid tank 4 for such a handheld device 100 is thus provided. The quick-change system 7 and the coupling device 5 are characterized by an automatic and error-free mode of operation. The interface between the fluid tank 4 of the device 10 and the inner part provided for suction by the pump 11 is reliably sealed and coupled for use of the handheld device 100.

[0031] The shape and design of the quick-change system 7 can be changed within the scope of the present invention as defined in the accompanying claims and have other shapes and embodiments. The fluid storage tank 4 can also have a shape different from a cylindrical shape with a flange 16 placed on the top. For example, a cylindrical shape with an angle in the cross section can be provided. The shape of the locking slide 8 can also be changed and does not have to be L-shaped. In the example shown, the locking slide 8 is supported in a corresponding guide groove inside the receiving part 3 in the handle element 2 and is installed under pressure against the elastic force. It is also possible to provide other forms of support and fixation of the locking slide or the release rod 8 within the scope of the present invention as defined in the claims.

[0032] List of reference numerals:

[0033] 1 Joystick

[0034] 2 Handle elements

[0035] 3 Receptacle for fluid tank

[0036] 4 Fluid storage tanks

[0037] 5 Coupling device

[0038] 6 Discharge section

[0039] 7 Quick-change system

[0040] 8 Release lever or locking slide

[0041] 9 valves

[0042] 10. Equipment

[0043] 11 Pump

[0044] 12 Unlock button

[0045] 13 Disc seal

[0046] 14 Cap seal

[0047] 15 Spring

[0048] 16. The ridge or rim of the fluid storage tank

[0049] 17 Inclined surface for locking slide

[0050] 100 Hand-held appliances.

Claims

1. A device (10) for ejecting or spraying a fluid projectile or a fluid beam onto a target body, the device comprising a hand-held device (100) having a pump (11) for ejecting the fluid projectile, wherein: The hand-held device (100) has an actuation lever (1) and a handle element (2), wherein a receptacle (3) is provided for receiving a replaceable fluid reservoir (4), which can be connected in a fluid-tight manner to a discharge section (6) by means of a coupling device (5). The invention is characterized in that the fluid tank (4) is a spray tank with an integrated tank valve (9), and the receiving part (3) is provided with a quick-change system (7) for the fluid tank (4), by means of which the fluid tank (4) can be held and snapped into the receiving part (3) in a spring-loaded manner and can be inserted in a locked manner but releasably when necessary by releasing a lever (8).

2. The device (10) according to claim 1, characterized in that The spray can is a non-pressure spray can.

3. The device (10) according to claim 1, characterized in that The fluid storage tank (4) has a cylindrical spray tank which is provided with an integrated valve (9) at the upper end.

4. The device (10) according to any one of claims 1 to 3, characterized in that The coupling device (5) has a snap-in / clamping connection for inserting and holding the fluid tank (4) in the receptacle (3).

5. The device (10) according to any one of claims 1 to 3, characterized in that A disk-shaped seal (13) is present on the fluid tank (4), which has a large sealing surface in a direction transverse to the longitudinal direction of the fluid tank (4), which seal surface cooperates with a cap-shaped seal (14) on one side of the device and integrated in the receiving part (3), and which serves as a counterpart element for sealing when the fluid tank (4) is inserted.

6. The device (10) according to any one of claims 1 to 3, characterized in that The fluid storage tank (4) is a spray tank having a cylindrical cross-sectional shape, and contains liquid as a fluid without pressure so as to be sucked in and discharged by means of the pump (11).

7. The device (10) according to any one of claims 1 to 3, characterized in that The quick-change system (7) of the device (10) is provided with an ejection mechanism which can be operated by a lever or a button (12) for ejecting the emptied fluid tank (4).

8. The device (10) according to any one of claims 1 to 3, characterized in that The pump (11) is activated by means of a joystick (1) on the handle element (2) in order to generate a suction force on the fluid or liquid present in the interior of the fluid reservoir (4).

9. The device (10) according to any one of claims 1 to 3, characterized in that A release lever (8) is provided which is accessible in sections from the outer side surface of the handle element (2) and is used to fix and to release and eject the emptied fluid tank (4), which can be stopped by means of a stop to prevent unintentional manipulation when operating the device (10).

10. The device (10) according to any one of claims 1 to 3, characterized in that The coupling device (5) and the quick-change system (7) are implemented using purely mechanical spring-loaded elements.

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