Smoke bomb fixing mechanism

Abstract

The utility model relates to the field of smoke bomb equipment, in particular to a smoke bomb fixing mechanism which comprises a mechanism body and a bomb pressing spring. An inner cavity is formed in the mechanism main body, and one end of the mechanism main body is an inlet end; the compression spring is provided with a spring support arranged at the inlet end and a compression spring piece arranged on the spring support. And the pressure spring piece extends into or partially extends into the inner cavity and is used for extruding the pressure spring piece to enable the part, extending into the inlet end, of the pressure spring piece to move in the direction deviating from the center of the inlet end when the projectile body is loaded into the inner cavity. According to the scheme, the projectile fixing device and the ignition device are separated, safety and reliability are higher, compared with claw type projectile fixing for fixing the projectile body from the tail end of the projectile body, the inlet end spring projectile fixing mode of the scheme is larger and more stable in fixing force, and the risk that the projectile body falls off due to the claw type projectile body is reduced under vibration impact.

Description

Technical Field

[0001] The present application relates to the field of smoke bomb equipment, and in particular to a smoke bomb fixing mechanism. Background Art

[0002] The current design of the fixed bullet structure used in 50mm smoke bombs uses a claw-type solution as the main means of fixing the projectile. Although the claw-type fixed bullet structure simplifies the assembly process to a certain extent and can theoretically provide a certain projectile locking effect, it exposes a series of significant limitations in practical applications.

[0003] First, in terms of bullet-fixing performance, the claw-type design has an obvious problem of insufficient bullet-fixing force. Fig.13 , its bullet fixing mechanism mainly relies on the connection between the 6-petal claws at the center of the tail of the projectile and the grooved igniter extending from the bottom of the launch device, and the degree of connection is achieved by the deformation of the 6-petal claws of the ammunition. However, this type of bullet fixing has insufficient fixing torque at the tail, and there is no additional fixing form to supplement the head. This single and unevenly distributed bullet fixing method leads to serious restrictions on the overall fixing strength of the projectile. Especially in the length direction of the projectile, the fixing force is mainly concentrated at the tail end, while the warhead part lacks effective constraints and support, which greatly reduces the stability of the projectile in the axial direction.

[0004] Secondly, the claw-type fixed bullet structure has low reliability in dealing with complex vibration environments. Since the projectile is kept relatively still only by the friction between the claw at the center of the tail and the igniter extending from the bottom of the launcher, when encountering severe vibration or impact, the friction between the claw at the tail and the inner wall may not be enough to resist the external force, causing the projectile to move inside the launcher or even fall out.

[0005] Furthermore, the claw-type solid bullet structure shows obvious difficulty in ejecting bullets when dealing with duds. When the projectile fails to fire normally, that is, a dud is formed, the faulty projectile needs to be safely ejected from the launch device for subsequent investigation or disposal. However, the design characteristics of the claw-type solid bullet structure determine that the connection between the projectile and the launch device is tight and not easy to unlock, especially when the claw at the tail of the projectile is deformed or stuck due to a launch failure, the ejection process becomes particularly difficult. Operators often need to spend a lot of time and energy, and even use special tools to complete the ejection operation, which greatly reduces the efficiency of troubleshooting and increases operational risks. Utility Model Content

[0006] The purpose of this application is to provide a smoke bomb fixing mechanism, in order to solve the problem of insufficient fixing force and inconvenient unlocking in the length direction of the projectile in the above-mentioned background technology. This solution adopts a simple and ingenious limiting structure located at the front end of the projectile. Compared with the claw-type fixing structure, the axial limit of the projectile can be simply completed at the front end of the projectile after the projectile is installed, which is simple and quick to operate.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a fixed bullet mechanism of a smoke bomb, comprising a mechanism body and a compression spring; the mechanism body is provided with an inner cavity for loading bullets and adapted to the bullet body, one end of the mechanism body is an open inlet end for placing the bullet body; the compression spring comprises a spring support provided on the inlet end and a compression spring sheet provided on the spring support;

[0008] Among them, the compression spring sheet extends into or partially extends into the inner cavity, and is used to squeeze the compression spring sheet when the projectile is loaded into the inner cavity so that the part of the compression spring sheet extending into the inlet end is displaced in the direction away from the center of the inlet end; in the direction of loading medicine into the inlet end, the side of the compression spring sheet facing the outside of the inner cavity is a slope surface for allowing the projectile to slide into or squeeze into the inner cavity, and the other side of the compression spring sheet facing the inner cavity is used to abut against the loaded projectile in the axial direction of the projectile.

[0009] By adopting the fixed bullet mechanism of the smoke bomb, it is possible to effectively achieve rapid and easy fixed bullet locking after the bomb body is loaded. A compression spring is designed at the entrance end of the device. Compared with the traditional method of setting a fixed bullet mechanism at the tail of the bomb body, this innovative design shows superiority in intuitively monitoring the fixed bullet status, and the operator can more conveniently observe and judge the current fixed bullet status. At the same time, compared with the currently widely used claw-type tail-end fixed bullet technology, the fixed bullet method provided by the present invention shows higher convenience and flexibility in daily maintenance, unlocking operations, etc., and it is more convenient to withdraw the bullet. In addition, this solution separates the fixed bullet device from the ignition device, which is also safer and more reliable. Compared with the claw-type fixed bullet that fixes the bomb body from the tail end of the bomb body, the entrance end spring fixed bullet method of this solution has a larger and more stable fixing force, which reduces the risk of the bomb body falling off due to the claw-type under vibration impact.

[0010] In some embodiments, the fixed bullet mechanism of the smoke bomb also includes an unlocking piece, which is movably arranged on the inlet end of the mechanism body; the compression spring sheet is provided with an extension portion for connecting or abutting with the unlocking piece, which is used to drive the extension portion to move when the unlocking piece is moved, so that the extension portion drives the part of the compression spring sheet extending into the inlet end to move away from the center of the inlet end.

[0011] Through the unlocking piece set at the entrance of the main body, the operator can easily release the fixed state of the elastic body for subsequent operations. The unlocking piece is linked with the extension part on the compression spring sheet. When the unlocking piece is actuated, it will drive the compression spring sheet to move in the opposite direction of the entrance end, thereby changing the state of the fixing mechanism and safely releasing or moving the elastic body. Compared with the complex tail claw fixing mechanism, this design simplifies the operation steps, enhances safety, and reduces the risk of accidents.

[0012] In some embodiments, the unlocking member is a rotating ring mounted inside the entrance end of the mechanism body, and an eccentric groove is arranged in a ring on the rotating ring; the spring support is an annular structure, and the spring support is arranged on the entrance end of the mechanism body, one end of the compression spring sheet is connected to the spring support, and the other end is an extension portion extending into the eccentric groove and abutting against the inner wall of the eccentric groove; the middle part of the compression spring sheet is bent toward the center of the entrance end and extends into the inner cavity to form a part of the compression spring sheet extending into the inner cavity.

[0013] This solution uses the eccentric groove to cooperate with the movement of the rotating ring, and indirectly controls the state of the compression spring piece by changing the shape of the eccentric groove to achieve unlocking. This design abandons the cumbersome mechanical structure and improves the reliability and ease of operation of unlocking. By flexibly adjusting the shape and position of the eccentric groove, the unlocking position can be accurately predicted by simply determining the rotation angle, thereby accurately controlling the movement of the compression spring piece to ensure that the projectile can be released safely and accurately.

[0014] Specifically, the eccentric groove is an arc-shaped strip groove; in the circumferential direction of the swivel, the distance from the side wall of the strip groove close to the center of the inlet end to the center of the inlet end gradually increases or gradually decreases, so that when the swivel is rotated, the side wall close to the center of the inlet end and the extension part are attached and slide, so that in the process of the extension part rotating with the swivel, the extension part gradually moves away from or approaches the center of the inlet end.

[0015] In some embodiments, the mechanism body includes a launch tube and a fixing sleeve. The fixing sleeve is detachably mounted on the open end of the launch tube; the spring support is arranged on the outer end surface of the fixing sleeve in the axial direction; the fixing sleeve is provided with a receiving groove for accommodating the compression spring sheet, and the bottom of the receiving groove is provided with a window for the extension end of the compression spring sheet to pass through; the rotating ring is slidably mounted on the fixing sleeve.

[0016] In this solution, the fixed sleeve can be easily disassembled and installed at the open end of the launch tube, which is convenient for separate maintenance and replacement without disassembling the entire launch tube, greatly saving the cost and time of maintenance and replacement. The spring support is located on the outer end surface of the fixed sleeve, making the fixed sleeve together with the fixed spring an independent module, which is conducive to rapid disassembly and interchangeability on the entire series of launch tubes.

[0017] In some embodiments, the window extends in the radial direction of the launch tube to form a space that allows the extension portion to be displaced in a direction away from the center of the inlet end, thereby realizing a displacement operation of the extension portion in this direction.

[0018] In some embodiments, an annular mounting groove is provided on the outer side wall of the fixed sleeve in the radial direction, and the rotating ring is arranged in the annular mounting groove and matched with the mounting groove; the eccentric groove on the rotating ring is located below the window.

[0019] By opening an annular mounting groove on the outer wall of the fixed sleeve, the swivel can be firmly nested therein, effectively preventing the swivel from loosening and falling off during use, and enhancing the overall stability and reliability of the mechanism. At the same time, the mounting groove also has an annular guiding function, like a slide groove or a slide rail, making the rotation of the swivel on the fixed sleeve smoother and more stable.

[0020] In some embodiments, in the circumferential direction of the swivel, the width of the receiving groove is adapted to the width of the compression spring sheet.

[0021] This design simplifies the installation of the fixed spring on the fixed sleeve. The circumferential positioning of the fixed spring can be achieved only through the circumferential or annular structure, without the need for additional parts or devices to complete the limiting function.

[0022] In some embodiments, the compression spring sheets are circumferentially distributed on an annular spring support.

[0023] The compression spring sheet is arranged in an annular direction on the annular spring support to achieve uniform force distribution, effectively reduce stress concentration, reduce the risk of local deformation and wear, and improve the overall structural stability. When the spring sheet is under pressure, the annular layout helps to evenly transmit the pressure, avoid deformation or instability of the structure due to uneven force, reduce single-point pressure, delay parts wear, and thus extend the service life of the mechanism.

[0024] In some embodiments, the angle between the slope and the other side of the compression spring sheet is an acute angle, so that the compression spring sheet forms a more stable one-way passing and limiting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional three-dimensional structural schematic diagram for explaining a bullet fixing mechanism of a smoke bomb in the present embodiment;

[0026] Figure 2 is a schematic cross-sectional structure diagram for illustrating a bullet fixing mechanism of a smoke bomb in the present embodiment;

[0027] Figure 3 A schematic diagram for explaining a bullet-fixing mechanism of a smoke bomb in the present embodiment when no bullet is loaded;

[0028] Figure 4 It is a schematic diagram for explaining a smoke bomb fixing mechanism after loading in this embodiment.

[0029] Figure 5 A schematic diagram for explaining the assembly of the fixing sleeve, the compression spring and the rotating ring in this embodiment;

[0030] Figure 6 is a schematic diagram for explaining a fixing sleeve in this embodiment;

[0031] Figure 7 is a schematic diagram for explaining a swivel in this embodiment;

[0032] Figure 8 is a schematic top view for illustrating the rotating ring in this embodiment;

[0033] Fig. 9 is a schematic diagram for explaining the compression spring in this embodiment;

[0034] Fig.10 A side view schematic diagram for illustrating the compression spring in this embodiment;

[0035] Fig.11 A schematic diagram for explaining the assembly of the compression spring and the swivel in this embodiment;

[0036] Fig.12 A cross-sectional schematic diagram for explaining the use of a fixed bullet mechanism of a smoke bomb in the present embodiment;

[0037] Fig.13 It is a schematic diagram for explaining the claw fixing method in this background technology.

[0038] In the figure:

[0039] 1. Mechanism body; 100, inner cavity; 110, rotating ring; 111, eccentric groove; 120, launching tube; 130, fixing sleeve; 131, storage groove; 132, window; 133, mounting groove;

[0040] 2. Compression spring; 210. Spring support; 220. Compression spring sheet; 221. Slope; 222. Extension portion. DETAILED DESCRIPTION

[0041] The following will be combined with 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 only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] The current 50mm caliber smoke bomb adopts a claw-type fixed bullet structure design. However, this design exposes some key problems in practical applications. The claw-type fixed bullet structure has the phenomenon of insufficient fixed bullet force. The main reason is that the structure only provides fixing force through the claw component located at the tail of the projectile body, while ignoring the effective fixation of the warhead part. Therefore, when the ammunition is subjected to vibration or impact, the projectile body may be unstable due to the lack of constraint on the warhead, thereby increasing the risk of accidental disengagement of the ammunition in the launcher. The claw-type fixed bullet structure also has the disadvantage of inconvenient operation in the dud handling link. When the ammunition fails to be successfully launched to form a dud, due to the limitations of the fixed bullet mechanism design, it is difficult to quickly and easily release the fixation of the dud, thereby hindering the timely and safe withdrawal of the faulty ammunition. In view of the problems existing in the current 50mm caliber smoke bomb using the claw-type fixed bullet structure, this scheme adopts the following smoke bomb fixed bullet mechanism, which is illustrated by the following embodiments.

[0043] Example 1

[0044] like Figures 1 to 12 A fixed bullet mechanism of a smoke bomb, comprising a mechanism body 1 and a compression spring 2; the mechanism body 1 is provided with an inner cavity 100 for loading bullets and adapted to the bullet body, one end of the mechanism body 1 is an open inlet end for placing the bullet body; the compression spring 2 comprises a spring support 210 arranged on the inlet end and a compression spring sheet 220 arranged on the spring support 210; the compression spring sheet 220 extends into or partially extends into the inner cavity 100, and is used to squeeze the compression spring sheet 220 when the bullet body is loaded into the inner cavity 100 so that the part of the compression spring sheet 220 extending into the inlet end is displaced in a direction away from the center of the inlet end; in the direction of charging toward the inlet end, the side of the compression spring sheet 220 facing the outside of the inner cavity 100 is a slope 221 for allowing the bullet body to slide into or squeeze into the inner cavity 100, and the other side of the compression spring sheet 220 facing the inner cavity 100 is used to abut against the loaded bullet body in the axial direction of the bullet body.

[0045] The above-mentioned compression spring sheet 220 extends into or partially extends into the inner cavity 100. Specifically, at least a part of the volume of the compression spring sheet 220 is designed to be embedded in the inner cavity 100 where the projectile to be loaded is located, that is, from the appearance, a part of the compression spring sheet 220 extending into the inner cavity 100 can be seen in the inner cavity 100. During the process of loading the projectile, when the projectile enters the inner cavity 100 along the mechanism body 1 under the action of mechanics, the compression spring sheet 220 is squeezed. When the projectile is loaded into place, the compression spring sheet 220 is reset again, and the compression spring sheet 220 and the inner wall of the mechanism body 1 establish contact with the projectile in the axial direction of the projectile and form an axial constraint on the projectile. This interaction makes the compression spring sheet 220 and the inner wall of the mechanism body 1 together form a safety limit structure to prevent the projectile from accidentally escaping from the inner cavity 100 along the axial direction.

[0046] By adopting the fixed bullet mechanism of the smoke bomb, it is possible to effectively achieve rapid and easy fixed bullet locking after the bomb body is loaded. A compression spring 2 is designed at the entrance end of the device. Compared with the traditional method of setting a fixed bullet mechanism at the tail of the bomb body, this innovative design shows superiority in intuitively monitoring the fixed bullet status, and the operator can more conveniently observe and judge the current fixed bullet status. At the same time, compared with the currently widely used claw-type tail-end fixed bullet technology, the fixed bullet method provided by the present invention shows higher convenience and flexibility in daily maintenance, unlocking operations, etc.

[0047] This solution is also aimed at the current claw-type fixed spring method. When encountering vibration, the claw-type fixed spring structure lacks a sufficient soft mechanism, which will greatly increase the risk of disengagement once the contact surface or position is slightly deformed. This solution adopts a compression spring 2 instead of directly making rigid contact with the elastic body. This mechanism with a certain soft contact allows the compression spring 2 to limit the elastic body axially when encountering vibration, so that it has a certain elastic space and reduces the rigid limiting contact surface. In this way, the compression spring 2 performs better than the claw type in axially limiting the elastic body in the inner cavity 100.

[0048] The portion of the compression spring sheet 220 extending into the inner cavity 100 may be a folded or bent portion. To facilitate loading, the bent or folded portion of the compression spring sheet 220 may have a slope 221 formed on one side facing outward, and the other side may be designed as a planar structure flush with the end face of the projectile after loading, thereby forming a one-way limit or a through limit scheme.

[0049] The fixed bullet mechanism of the smoke bomb also includes an unlocking piece, which is movably arranged on the inlet end of the mechanism body 1; the compression spring sheet 220 is provided with an extension portion 222 for connecting or abutting with the unlocking piece, which is used to drive the extension portion 222 to move when the unlocking piece is moved, so that the extension portion 222 drives the part of the compression spring sheet 220 extending into the inlet end to move away from the center of the inlet end.

[0050] By setting up the unlocking piece, the operator can more easily release the fixed state of the projectile and proceed to the next operation. The unlocking piece is movable at the entrance end of the mechanism body 1, making the operation more convenient without moving to other parts of the projectile.

[0051] The extension 222 provided on the compression spring sheet 220 is connected to or abuts against the unlocking member. When the unlocking member is moved, the extension 222 will move accordingly, thereby driving the corresponding part of the compression spring sheet 220 to move away from the center of the inlet end. This design allows the unlocking operation to directly affect the state of the fixing mechanism, thereby ensuring that the elastic body can be safely released or moved during the unlocking process. Compared with the claw fixing elastic mechanism at the operating end, the operation process is simplified, the safety of the operation is improved, and the possibility of accidents is reduced.

[0052] The unlocking member can be a pull ring on the mechanism body 1. For example, an opening is provided on the mechanism body 1, and the pull ring is linked with the extension part 222. Pulling the pull ring drives the extension part 222 to move away from the center of the inlet end, thereby driving the deformation of the entire compression spring sheet 220, and allowing the compression spring sheet 220 extending into the inner cavity 100 to be partially retracted. The unlocking member here can also be an annular structure provided on the mechanism body 1. An eccentric protrusion is provided on the wall where the annular structure contacts the extension part 222. When the annular structure is rotated, the part of the extension part 222 contacting the eccentric protrusion is squeezed, and the extension part 222 gradually moves away from the center of the inlet end, which also drives the deformation of the entire compression spring sheet 220, and allows the compression spring sheet 220 extending into the inner cavity 100 to be partially retracted. Here, the locking member only needs to drive the extension part 222 to move away from the center of the inlet end. In this way, the unlocking member is arranged on the inlet end, which is convenient and quick to operate.

[0053] Example 2

[0054] Combined with Figures 1 to 12 On the basis of the above embodiment, the unlocking member is a rotating ring 110 mounted in the inlet end of the mechanism body 1, and an eccentric groove 111 is arranged in an annular manner on the rotating ring 110; the spring support 210 is an annular structure, and the spring support 210 is arranged on the inlet end of the mechanism body 1, one end of the compression spring sheet 220 is connected to the spring support 210, and the other end is an extension portion 222 extending into the eccentric groove 111 and abutting against the inner wall of the eccentric groove 111; the middle part of the compression spring sheet 220 is bent toward the center direction of the inlet end and extends into the inner cavity 100 to form a part of the compression spring sheet 220 extending into the inner cavity 100.

[0055] The above-mentioned eccentric groove 111 can be a groove extending in an annular direction on the rotating ring 110. One side of the groove contacts the inner wall of the extension part 222. From the annular direction, the distance from the inner wall to the center of the inlet end gradually changes, which is the eccentric groove 111 mentioned here.

[0056] In this solution, the eccentric groove 111 is adopted and the rotating ring 110 is moved. The change in the shape of the eccentric groove 111 will affect the state of the compression spring piece 220, thereby realizing the unlocking operation.

[0057] This solution avoids complex mechanical structures, improves the reliability of unlocking and the ease of operation, and by adjusting the shape and position of the eccentric groove 111, that is, by knowing exactly where to rotate to release, the displacement of the compression spring sheet 220 can be accurately controlled, thereby achieving precise unlocking operation and ensuring the safe release of the projectile.

[0058] Anti-slip grooves may be provided on the outer edge of the rotating ring 110, so that even manual operation can be more convenient. Of course, unlocking can also be performed in a motorized manner.

[0059] For example, a motor is arranged outside the mechanism body 1, and a gear shape is set on the outer wall of the rotating ring 110. Another gear that drives the rotating ring 110 is sleeved on the motor shaft. The motor is controlled by wire or wirelessly to complete the motor unlocking.

[0060] On the basis of the above scheme, specifically, the eccentric groove 111 is an arc-shaped strip groove; in the circumferential direction of the rotating ring 110, the distance from the side wall of the strip groove close to the center of the inlet end to the center of the inlet end gradually increases or gradually decreases, so that when the rotating ring 110 is rotated, the side wall close to the center of the inlet end and the extension part 222 are attached and slided, so that in the process of the extension part 222 rotating with the rotating ring 110, the extension part 222 gradually moves away from or approaches the center of the inlet end.

[0061] Example 3

[0062] Combined with Figures 1 to 12 On the basis of the above embodiment, the mechanism body 1 includes a launch tube 120 and a fixing sleeve 130. The fixing sleeve 130 is installed on the open end of the launch tube 120 by means of threads, and the fixing sleeve 130 may be externally threaded and the launch tube 120 may be internally threaded; the spring support 210 is arranged on the outer end surface of the fixing sleeve 130 in the axial direction; the fixing sleeve 130 is provided with a receiving groove 131 for receiving the compression spring sheet 220, and the bottom of the receiving groove 131 is provided with a window 132 for the extension end of the compression spring sheet 220 to pass through; the rotating ring 110 is slidably mounted on the fixing sleeve 130.

[0063] In addition to the above-mentioned internal and external threaded connection method, the above-mentioned fixing sleeve 130 can also be set on the entrance end of the launching tube 120 by plugging or clamping. For example, an inverted T-shaped inner groove is opened on the inner wall of the launching tube 120, and an insert block is set on the fixing sleeve 130. After being inserted into the launching tube 120 along the vertical groove of the inverted T-shaped inner groove, the fixing sleeve 130 is rotated to make the insert block enter the horizontal groove of the inverted T-shaped inner groove. The horizontal groove and the insert block are tightly matched to complete the docking. It can also be that a bolt hole is set on the launching tube 120 relative to the solid sleeve, and the two are fixed by bolts. Here, as long as the two can be detachably fixed relative to each other, it will not be repeated here.

[0064] In this solution, the fixing sleeve 130 is detachably mounted on the open end of the launch tube 120, which makes the entire fixing mechanism easier to maintain and replace. If the fixing sleeve 130 needs to be cleaned, repaired or replaced, it can be simply disassembled without disassembling the entire launch tube 120, thereby saving time and cost for maintenance and replacement.

[0065] The spring support 210 is arranged on the outer end surface of the fixing sleeve 130, and the overall fixed spring structure formed by the fixing sleeve 130 and the fixed spring can also be modularized, so as to facilitate the disassembly, assembly and replacement of the entire fixed spring structure on different generating tubes.

[0066] In the present embodiment, further, the window 132 extends in the radial direction of the launch tube 120, and is used to form a space for the extension portion 222 to be displaced in a direction away from the center of the inlet end, so as to realize the displacement operation of the extension portion 222 in this direction.

[0067] An annular mounting groove 133 is formed on the outer side wall of the fixing sleeve 130 in the radial direction, and the rotating ring 110 is sleeved in the annular mounting groove 133 and matched with the mounting groove 133 ; the eccentric groove 111 on the rotating ring 110 is located below the window 132 .

[0068] By providing an annular mounting groove 133 on the outer side wall of the fixing sleeve 130 in the radial direction and sleeve-mounting the rotating ring 110 therein, the stable assembly of the rotating ring 110 on the fixing sleeve 130 can be ensured. This design effectively prevents the rotating ring 110 from loosening or falling off during use, and improves the stability and reliability of the entire mechanism. Of course, the mounting groove 133 here also plays an annular guiding role as a slide groove or slide rail of the rotating ring 110, and the rotating ring 110 is rotated to make its movement on the fixing sleeve 130 more stable and smooth.

[0069] In the circumferential direction of the rotating ring 110, the width of the receiving groove 131 is adapted to the width of the compression spring sheet 220. This design allows the entire fixed elastic spring to be set on the fixing sleeve 130, and the circumferential limit of the fixed elastic spring can be completed in the circumferential or circumferential direction without setting up additional parts or devices to complete the limit work in this direction.

[0070] The compression spring pieces 220 are circumferentially distributed on the annular spring support 210. By circumferentially distributing the compression spring pieces 220 on the annular spring support 210, it is possible to ensure that the force is evenly distributed on the annular support.

[0071] This helps to reduce the stress concentration when the compression spring sheet 220 contacts the main body 1 of the mechanism, thereby reducing the risk of local deformation and wear, and also improving the stability of the overall structure. When the spring sheet is subjected to pressure, the pressure can be transmitted more evenly by being distributed on the annular support, thereby reducing the possibility of structural deformation or instability caused by local uneven force, reducing the single-point pressure of the components, slowing down the wear rate of the parts, and thus extending the service life of the entire mechanism.

[0072] Example 4

[0073] Based on the above embodiment, the angle between the slope 221 and the other side of the compression spring sheet 220 is an acute angle, so that the compression spring sheet 220 forms a more stable one-way passing and limiting structure. The compression spring sheet 220 here can be set in an S-shaped style as shown in the figure.

[0074] The upper part is close to a folded shape, the upper plate surface is an inclined surface, and the lower plate surface is a straight surface, which is parallel to the end surface of the elastic body to abut the upper end surface of the elastic body. The lower part is an arc-shaped plate surface, and the lower end forms the above-mentioned extension portion 222. The inner side of the arc-shaped plate surface is hooked or tightly attached to the inner wall of one side of the above-mentioned eccentric groove 111, so that the overall compression spring sheet 220 has a simple and elastic structure.

[0075] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A smoke bomb fixing mechanism, characterized in that: include: A mechanism body, wherein an inner cavity for loading bullets and adapted to the bullet body is provided in the mechanism body, and one end of the mechanism body is an open inlet end for placing the bullet body; A compression spring, the compression spring comprising a spring support disposed on the inlet end and a compression spring sheet disposed on the spring support; The compression spring piece extends into or partially extends into the inner cavity, and is used to squeeze the compression spring piece when the elastic body is loaded into the inner cavity so that the part of the compression spring piece extending into the inlet end is displaced away from the center of the inlet end; In the direction of charging toward the inlet end, the side of the compression spring sheet facing outside the inner cavity is a slope surface for allowing the projectile to slide or squeeze into the inner cavity, and the other side of the compression spring sheet facing inside the inner cavity is used to abut against the loaded projectile in the axial direction of the projectile.

2. The smoke bomb fixing mechanism according to claim 1, characterized in that: The fixed bullet mechanism of the smoke bomb also includes an unlocking member, which is movably arranged on the inlet end of the mechanism body; The compression spring sheet is provided with an extension portion for connecting or abutting with the unlocking member, which is used to drive the extension portion to move when the unlocking member is moved, so that the extension portion drives the portion of the compression spring sheet extending into the inlet end to move away from the center of the inlet end.

3. The smoke bomb fixing mechanism according to claim 2, characterized in that: The unlocking member is a rotating ring sleeved in the inlet end of the mechanism body, and an eccentric groove is provided in an annular manner on the rotating ring; The spring support is an annular structure, which is arranged on the inlet end of the mechanism body, one end of the compression spring sheet is connected to the spring support, and the other end is an extension portion extending into the eccentric groove and abutting against the inner wall of the eccentric groove; The middle portion of the compression spring sheet is bent toward the center direction of the inlet end and extends into the inner cavity to form a portion of the compression spring sheet extending into the inner cavity.

4. The smoke bomb fixing mechanism according to claim 3, characterized in that: The eccentric groove is an arc-shaped strip groove; In the circumferential direction of the swivel, the distance from the side wall of the strip groove close to the center of the inlet end to the center of the inlet end gradually increases or decreases, so that when the swivel is rotated, the side wall close to the center of the inlet end and the extension part fit and slide, so that in the process of the extension part rotating with the swivel, the extension part gradually moves away from or approaches the center of the inlet end.

5. A smoke bomb fixing mechanism according to claim 3 or 4, characterized in that: The institutional entities include: Launch tube; A fixing sleeve, which is detachably mounted on the opening end of the launch tube; The spring support is arranged on the outer end surface of the fixing sleeve in the axial direction; The fixing sleeve is provided with a receiving groove for receiving the compression spring sheet, and the bottom of the receiving groove is provided with a window for the extended end of the compression spring sheet to pass through; The rotating ring is slidably mounted on the fixing sleeve.

6. The bullet fixing mechanism of a smoke bomb according to claim 5, characterized in that: The window extends in the radial direction of the launch tube, and is used to form a space that allows the extension portion to be displaced in a direction away from the center of the inlet end.

7. The smoke bomb fixing mechanism according to claim 5, characterized in that: An annular mounting groove is provided on the outer side wall of the fixed sleeve in the radial direction, and the rotating ring is sleeved in the annular mounting groove and matched with the mounting groove; the eccentric groove on the rotating ring is located below the window.

8. The smoke bomb fixing mechanism according to claim 5, characterized in that: In the circumferential direction of the swivel, the width of the receiving groove is adapted to the width of the compression spring sheet.

9. The smoke bomb fixing mechanism according to claim 3, characterized in that: The compression spring sheets are circumferentially distributed on an annular spring support.

10. The smoke bomb fixing mechanism according to claim 1, characterized in that: The included angle between the slope surface and the other surface of the compression spring sheet is an acute angle.

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