CN113720204B - Elastic shell throwing gun jack and mounting method thereof - Google Patents
Elastic shell throwing gun jack and mounting method thereof Download PDFInfo
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- CN113720204B CN113720204B CN202111095525.4A CN202111095525A CN113720204B CN 113720204 B CN113720204 B CN 113720204B CN 202111095525 A CN202111095525 A CN 202111095525A CN 113720204 B CN113720204 B CN 113720204B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A35/00—Accessories or details not otherwise provided for
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Abstract
The invention discloses an elastic shell-throwing gun jack and an installation method thereof, which can realize convenient and rapid assembly and disassembly of an elastic shell-throwing jack. The shell lifting device comprises a machine head body, a shell bottom nest, a shell lifting hook pin, a shell lifting hook spring, a shell lifting jack spring, a shell lifting jack pin and a firing pin, wherein the shell lifting hook is positioned above the shell bottom nest and hinged to the machine head body through the shell lifting hook pin; the shell throwing tappet is in clearance fit in the shell throwing tappet hole, a shell throwing tappet spring is arranged between the shell throwing tappet and the hole bottom of the shell throwing tappet hole, a shell throwing tappet notch which is in a strip shape is arranged at the lower end of the shell throwing tappet, and a shell throwing tappet pin transversely penetrates through the shell throwing tappet notch and is positioned in a shell throwing tappet pin hole arranged on the machine head body, so that the shell throwing tappet has an axial movement space.
Description
Technical Field
The invention relates to the technical field of firearms, in particular to an elastic shell-throwing gun jack and an installation method thereof.
Background
After the firearm is shot, a bolt face rear seat (a non-automatic mode is a manual back-pulling bolt face) completes the actions of shell drawing and shell throwing, and two shell throwing modes are adopted, namely a rigid shell throwing mode and an elastic shell throwing mode.
The principle of the elastic shell throwing mode is that under the action of a shell throwing jack spring, the elastic shell throwing jack is propped against the bottom of the shell, and after the shell leaves the cartridge chamber, the elastic shell throwing jack jacks the shell open under the action of the shell throwing jack spring, so that the shell rotates around the shell pulling hook, and the shell throwing action is completed.
When the gun machine is assembled, an assembly bench worker needs to clamp the tail part of the gun machine by using a vice, firstly, a shell throwing tappet spring is placed in a shell throwing tappet hole of a machine head body, then the shell throwing tappet is installed, then a shell throwing tappet is pushed into the shell throwing tappet hole by using a punch by using one hand, a notch of the shell throwing tappet is aligned with the shell throwing tappet hole and is stable, and a shell throwing tappet pin is beaten into by using a hammer by using the other hand to lock the shell throwing tappet, so that another person is often required to hold the gun machine when the shell throwing tappet pin is beaten into. In the assembly process, the operation is complex, the efficiency is low, the matching is poor, the shell throwing stile is easy to spring out under the action of the shell throwing stile spring, and the phenomena of scattered and lost parts such as the shell throwing stile, the shell throwing stile spring and the like and even hurt people are caused. When the shell throwing stile is disassembled, the tail of a gun camera is clamped by a vice as in the assembly of the shell throwing stile, the shell throwing stile is also required to be propped against by a punch, and then the shell throwing stile pin is knocked out by a hammer and the punch, so that the shell throwing stile disassembling process is also complicated, and the shell throwing stile can be completed only by the assistance of other people.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an elastic shell-throwing gun jack and an installation method thereof, which can realize convenient and rapid assembly and disassembly of the elastic shell-throwing jack.
The purpose of the invention is realized in the following way:
the elastic shell throwing and gun supporting machine comprises a machine head body, and a bullet bottom nest, a shell pulling hook pin, a shell pulling hook spring, a shell throwing and supporting rod and a firing pin which are arranged on the machine head body, wherein the shell pulling hook is positioned above the bullet bottom nest and hinged to the machine head body through the shell pulling hook pin, a top hole and a shell throwing and supporting rod hole are formed in the end part of the machine head body, the top hole is positioned right behind the shell pulling hook, the shell throwing and supporting rod hole is positioned below the bullet bottom nest and corresponds to the top hole and the shell pulling hook, and the axial leads of the top hole and the shell throwing and supporting rod hole are parallel to the axial leads of the bullet bottom nest and the firing pin;
the pull shell hook plug is in clearance fit in the plug hole, a pull shell hook spring is arranged between the pull shell hook plug and the hole bottom of the plug hole, the head of the pull shell hook plug is provided with an arc surface, the tail end of the pull shell hook is provided with an inclined surface, the arc surface of the pull shell hook plug is contacted with the inclined surface of the tail end of the pull shell hook, the included angle of the inclined surface of the tail end of the pull shell hook along the horizontal plane is alpha, so that the pull shell hook plug applies positive pressure F1 of a vertical inclined surface to the pull shell hook, and friction resistance F2 along the inclined surface outwards causes the tail end of the pull shell hook to outwards rotate, and the friction resistance F2 prevents the head of the pull shell hook from opening to form an incomplete self-locking gun machine;
the shell throwing tappet is in clearance fit in the shell throwing tappet hole, a shell throwing tappet spring is arranged between the shell throwing tappet and the hole bottom of the shell throwing tappet hole, a shell throwing tappet notch which is in a strip shape is arranged at the lower end of the shell throwing tappet, and a shell throwing tappet pin transversely penetrates through the shell throwing tappet notch and is positioned in a shell throwing tappet pin hole arranged on the machine head body, so that the shell throwing tappet has an axial movement space.
Preferably, the head of the pull shell hook top head is a half ball head, and an arc surface is formed.
Preferably, the head of the pull shell hook top is rounded to form an arc surface.
Preferably, the position where the arc of the top of the shell pulling hook contacts with the inclined plane of the tail end of the shell pulling hook is located at the outer side of the shell pulling hook.
Preferably, the pull shell hook top is in a stepped shaft shape, and the small diameter section of the pull shell hook top is sleeved in the pull shell hook spring.
Preferably, the arc surface of the top of the shell pulling hook is tangent to the inclined surface of the tail end of the shell pulling hook.
A method for installing an elastic shell throwing gun jack,
s1, installing a shell pulling hook, a shell pulling hook pin, a shell pulling hook spring and a shell pulling hook plug;
s2, sequentially installing a shell throwing tappet spring and a shell throwing tappet into a shell throwing tappet hole of the machine head body, overcoming the spring force of the shell throwing tappet spring, pressing the shell throwing tappet into the installation position, aligning a shell throwing tappet notch with a shell throwing tappet pin hole, and then installing a shell throwing tappet pin to lock the shell throwing tappet;
s3, preparing a mounting device, wherein the mounting device is cylindrical, the working end of the mounting device corresponds to the bullet bottom socket, and an annular groove is formed in the circumferential wall of the working end of the mounting device along the circumferential direction;
the working end of the installation device faces to the bullet bottom nest of the machine head body, the annular groove of the installation device is used for hooking the hook teeth of the shell pulling hook, the installation device is downwards pulled to enable the installation device to rotate around the hook teeth of the shell pulling hook, and meanwhile, the working end face of the installation device presses the shell throwing jack into the shell throwing jack, so that the notch of the shell throwing jack is aligned with the shell throwing jack hole;
s4, continuously pulling the mounting device until the end face of the working end of the mounting device is stuck to the spring bottom nest mirror face of the machine head body, and knocking the shell throwing tappet into the shell throwing tappet hole;
s5, after the shell throwing tappet is assembled, the mounting device is taken down, and the shell throwing tappet outwards flicks under the action of the shell throwing tappet spring until the shell throwing tappet is locked by the shell throwing tappet, and the shell throwing tappet is mounted.
Preferably, when the shell throwing tappet is disassembled, the annular groove of the mounting device is used for hooking the hook tooth of the shell pulling hook, the shell throwing tappet is pressed into the shell throwing tappet hole, the shell throwing tappet pin is knocked out, and the shell throwing tappet spring are taken out in sequence after the mounting device is taken down.
Preferably, a yielding hole for yielding the striker pin is formed in the end face of the working end of the mounting device.
Preferably, in S1, the method for installing the shell hook, the shell hook pin, the shell hook spring and the shell hook plug is as follows:
sequentially loading the shell pulling hook spring and the shell pulling hook plug into a plug hole of the machine head body, overcoming the spring force of the shell pulling hook spring, completely pressing the shell pulling hook plug into the plug hole of the machine head body, and pressing the shell pulling hook plug to keep the shell pulling hook plug in place;
placing the shell pulling hook in place and locking the shell pulling hook by a shell pulling hook pin;
releasing the top of the shell pulling hook to enable the arc surface of the top of the shell pulling hook to contact with the tail end inclined surface of the shell pulling hook.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention can hook the annular groove of the installation device (or the bullet and the shell) by using the shell pulling hook, and the shell throwing jack can be pressed into the shell throwing jack hole on the machine head body by only pulling the installation device (or the bullet and the shell) with fingers to rotate around the hook teeth of the shell pulling hook, and the working end surface (or the bottom edge of the bullet and the shell) of the installation device, so that the notch of the shell throwing jack is automatically aligned with the shell throwing jack hole, and then the shell throwing jack pin is knocked in to lock the elastic shell throwing jack. The assembly process does not need a vice or a punch to press the shell throwing tappet, and a special distraction is not needed to lead the notch of the elastic shell throwing tappet to be aligned with the shell throwing tappet hole. Because the center of the working end surface of the installation device is provided with the abdication hole, the firing pin is in the out-of-shape state, and the shell throwing and lifting can be conveniently installed. The installation method can complete the installation and the disassembly of the shell throwing stile by using the bullet (or the shell) even without an installation device. The mounting device and the mounting method are used for assembling and disassembling the elastic shell-throwing beam, the operation is simple and convenient, the other people are not required to assist, even if a non-professional bench worker can independently complete the installation and the disassembly of the elastic shell-throwing beam, the convenience and the practicability of the assembly operation and the daily maintenance operation of the elastic shell-throwing beam type firearm are improved, the device and the method have good popularization and practical values, and good economic benefits and social benefits can be generated after the device and the method are widely popularized and applied.
The draw shell hook spring is longitudinally arranged along the axis direction of the bolt. Under the action of the shell pulling hook spring, the rounded (or semicircular) arc of the top of the shell pulling hook props against the inclined plane of the tail end of the shell pulling hook, and the acting line of the force F1 applied to the shell pulling hook is arranged at the outer side of the shell pulling hook pin, so that the shell pulling hook rotates around the shell pulling hook pin to hold the shell. Because the arc of the top of the shell pulling hook contacts with the inclined surface of the tail end of the shell pulling hook, when the shell pulling hook is outwards opened, friction force F2 is formed on the contact surface, and the self-locking shell pulling hook is generated to inhibit outwards opening, so that the shell pulling hook spring is designed, and the shell pulling hook can be reliably held without too large spring force. Because the draw shell hook spring is longitudinally arranged along the axis direction of the gun camera, the transverse size of the gun camera is reduced, the structure of the gun camera is more compact, and the transverse size of the whole gun is reduced. The novel elastic shell-throwing gun jack and the installation method thereof are very suitable for compact gun jacks, are particularly suitable for gun jacks reserved for the elastic shell-throwing gun jack and the installation method thereof with limited space, and have high popularization value and wide application prospect.
Drawings
FIG. 1 is a partial cross-sectional view of a bolt face with a cast jack to be installed;
FIG. 2 is a schematic view of a cast shell jack mounting apparatus;
FIG. 3 is a schematic view of an installation device pushing an elastic cast shell into a cast shell jack;
FIG. 4 is a schematic view of the mounting device pushing the resilient cast shell into the cast shell jack when the firing pin is in the cocked state;
FIG. 5 is a schematic view of a cast housing tappet locked by the cast housing tappet;
FIG. 6 is a schematic view of the cast shell tappet in an assembled state;
FIG. 7 is a schematic view of a shell holding state of the shell extracting mechanism;
FIG. 8 is a schematic view of a draw hook;
fig. 9 is a force-bearing schematic diagram of the shell-pulling mechanism.
Detailed Description
The invention will be described with reference to the accompanying drawings, wherein fig. 1 is a partial sectional view of a gun camera, a 1-shell-pulling hook, a 2-firing pin, a 3-machine head, a 4-shell-throwing tappet spring and a 5-shell-throwing tappet.
In fig. 1, a shell throwing tappet spring 4 and a shell throwing tappet 5 are sequentially arranged in a shell throwing tappet hole of a machine head body 3, when the shell throwing tappet 5 is pressed into a correct installation position, the spring force of the shell throwing tappet spring 4 needs to be overcome, a shell throwing tappet notch is exposed out of a shell throwing tappet pin hole, and then the shell throwing tappet pin is arranged to lock the shell throwing tappet 5. In the attached figure 1, the polishing shell tappet notch is not exposed out of the polishing shell tappet pin hole, and the polishing shell tappet pin cannot be installed.
Fig. 2 shows a mounting device 7, the annular groove is used for being buckled with the shell pulling hook 1, the working end surface is used for extruding the shell throwing stile, and the abdication hole of the working end surface is used for mounting the shell throwing stile for abdicating the firing pin when the firing pin is in a raised state.
In fig. 3, the working end of the mounting device 7 faces to the bullet bottom nest of the machine head body 3, the annular groove of the mounting device 7 is used for hooking the hook teeth of the shell pulling hook, the mounting device 7 is pulled towards the arrow direction by fingers, the mounting device 7 rotates around the hook teeth of the shell pulling hook, and the working end face of the mounting device simultaneously extrudes the shell throwing tappet 5 into the shell throwing tappet hole, so that the notch of the shell throwing tappet exposes out of the shell throwing tappet hole.
In fig. 5, the installation device 7 is pulled to the working surface to be attached to the spring bottom nest mirror surface of the machine head body 3, and the shell throwing tappet 6 is knocked into the shell throwing tappet hole by a hammer.
In fig. 6, after the shell-throwing tappet 6 is assembled, the mounting device 7 is removed, and the shell-throwing tappet 5 springs outwards under the action of the shell-throwing tappet spring 4 until the shell-throwing tappet is locked by the shell-throwing tappet 6, so that the shell-throwing tappet is mounted.
In fig. 4, a schematic diagram of the installation process of the shell throwing stile when the firing pin 2 is in the out-of-state is shown, and the installation of the shell throwing stile is not affected due to the fact that the working surface of the installation device is provided with a yielding hole.
When the shell throwing tappet 5 is disassembled, the annular groove of the mounting device 7 (or a bullet or a shell) is used for hooking the hook teeth of the shell pulling hook, the shell throwing tappet 5 is pressed into the shell throwing tappet hole (see figure 5), the shell throwing tappet pin 6 is knocked out by a punch, and the mounting device 7 is slowly released, so that the shell throwing tappet 5 and the shell throwing tappet spring 4 can be taken out in sequence.
In fig. 7, the 1-shell-pulling hook, the 8-shell-pulling hook pin, the 9-shell-pulling hook plug, the 10-shell-pulling hook spring and the bullet socket form a shell-pulling mechanism. 11-shell. The gunlock is in a shell holding state. The pull shell hook spring 10 transmits spring force to the pull shell hook top 9, the arc of the pull shell hook top 9 contacts with the inclined plane of the tail end of the pull shell hook, the force F1 is transmitted to the pull shell hook, the action line of F1 is arranged on the outer side of the pull shell hook pin 8, the pull shell hook 8 rotates clockwise around the pull shell hook pin, and the hook teeth of the pull shell hook enter the annular groove of the shell 11 to hold the shell.
Fig. 8 shows a shell hook, and the included angle of the tail end inclined plane is alpha.
In fig. 9, the novel elastic shell-throwing gun jack and the installation method thereof are still self-locking shell-pulling structures, and the action line of shell-pulling resistance F is positioned at the outer side of the shell-pulling hook pin 8, so that the shell-pulling hook 1 rotates clockwise around the shell-pulling hook pin 8 to hold a shell, and the self-locking elastic shell-throwing gun jack and the installation method thereof are formed.
In fig. 9, the arc of the pull shell hook top 9 contacts with the inclined plane of the tail end of the pull shell hook 1, the pull shell hook top 9 applies positive pressure F1 of a vertical inclined plane to the pull shell hook 1, and the action line of the positive pressure F1 is positioned at the outer side of the pull shell hook, so that the pull shell hook 1 rotates clockwise around the pull shell hook pin to hold the shell. And simultaneously, a friction resistance F2 for preventing the shell pulling hook from opening is also applied. The friction resistance F2 prevents the shell from opening and has a self-locking effect, but is not completely self-locking, the self-locking degree is related to the included angle alpha of the inclined plane of the tail end of the shell pulling hook, and the smaller the alpha is, the larger the self-locking effect is generated. Alpha is small to a certain extent, and complete self-locking can be formed. Before the elastic shell throwing gun jack and the installation method thereof draw the shell, the shell must be extruded into the bottom socket, if the shell is completely self-locking, the shell cannot enter the bottom socket, so the alpha parameter of the tail end inclined plane of the shell pulling hook is designed to be incompletely self-locking, and the shell can be extruded into the bottom socket conveniently. The self-locking action of the friction resistance F2 inhibits the opening of the shell pulling hook, so that the shell pulling hook spring with smaller spring force can ensure the reliable shell holding of the elastic shell throwing gun jack and the installation method thereof. Because the draw shell hook spring is small in size and is longitudinally arranged along the axis of the bolt, the transverse size of the bolt is small, and the structure is compact.
Novel elastic shell throwing gun jack and shell pulling hook spring of the novel elastic shell throwing gun jack mounting method are longitudinally arranged along the axis direction of the gun jack. Under the action of the shell pulling hook spring, the rounded (or semicircular) arc of the top of the shell pulling hook props against the inclined plane of the tail end of the shell pulling hook, and the acting line of the force F1 applied to the shell pulling hook is arranged at the outer side of the shell pulling hook pin, so that the shell pulling hook rotates around the shell pulling hook pin to hold the shell. Because the arc of the top of the shell pulling hook contacts with the inclined surface of the tail end of the shell pulling hook, when the shell pulling hook is outwards opened, friction force F2 is formed on the contact surface, and the self-locking shell pulling hook is generated to inhibit outwards opening, so that the shell pulling hook spring is designed, and the shell pulling hook can be reliably held without too large spring force. Because the draw shell hook spring is longitudinally arranged along the axis direction of the gun camera, the transverse size of the gun camera is reduced, the structure of the gun camera is more compact, and the transverse size of the whole gun is reduced. The novel elastic shell-throwing gun jack and the installation method thereof are very suitable for compact gun jacks, are particularly suitable for gun jacks reserved for the elastic shell-throwing gun jack and the installation method thereof with limited space, and have high popularization value and wide application prospect.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. The method for installing the elastic shell throwing gun jack is characterized by comprising the following steps of:
the elastic shell throwing and gun supporting machine comprises a machine head body, and a shell bottom nest, a shell pulling hook pin, a shell pulling hook spring, a shell throwing and supporting pin and a firing pin which are arranged on the machine head body, wherein the shell pulling hook is positioned above the shell bottom nest and hinged to the machine head body through the shell pulling hook pin, and the elastic shell throwing and gun supporting machine is characterized in that: the end part of the machine head body is provided with a top hole and a shell throwing tappet hole, the top hole is positioned right behind the shell pulling hook, the shell throwing tappet hole is positioned below the bullet bottom nest and corresponds to the top hole and the shell pulling hook, and the axial leads of the top hole and the shell throwing tappet hole are parallel to the axial leads of the bullet bottom nest and the firing pin;
the pull shell hook plug is in clearance fit in the plug hole, a pull shell hook spring is arranged between the pull shell hook plug and the hole bottom of the plug hole, the head of the pull shell hook plug is provided with an arc surface, the tail end of the pull shell hook is provided with an inclined surface, the arc surface of the pull shell hook plug is contacted with the inclined surface of the tail end of the pull shell hook, the included angle of the inclined surface of the tail end of the pull shell hook along the horizontal plane is alpha, so that the pull shell hook plug applies positive pressure F1 of a vertical inclined surface to the pull shell hook, and friction resistance F2 along the inclined surface outwards causes the tail end of the pull shell hook to outwards rotate, and the friction resistance F2 prevents the head of the pull shell hook from opening to form an incomplete self-locking gun machine;
the shell throwing tappet is in clearance fit in the shell throwing tappet hole, a shell throwing tappet spring is arranged between the shell throwing tappet and the hole bottom of the shell throwing tappet hole, a shell throwing tappet notch which is in a strip shape is arranged at the lower end of the shell throwing tappet, and a shell throwing tappet pin transversely penetrates through the shell throwing tappet notch and is positioned in a shell throwing tappet pin hole arranged on the machine head body, so that the shell throwing tappet has an axial movement space;
s1, installing a shell pulling hook, a shell pulling hook pin, a shell pulling hook spring and a shell pulling hook plug;
s2, sequentially installing a shell throwing tappet spring and a shell throwing tappet into a shell throwing tappet hole of the machine head body, overcoming the spring force of the shell throwing tappet spring, pressing the shell throwing tappet into the installation position, aligning a shell throwing tappet notch with a shell throwing tappet pin hole, and then installing a shell throwing tappet pin to lock the shell throwing tappet;
s3, preparing a mounting device, wherein the mounting device is cylindrical, the working end of the mounting device corresponds to the bullet bottom socket, and an annular groove is formed in the circumferential wall of the working end of the mounting device along the circumferential direction;
the working end of the installation device faces to the bullet bottom nest of the machine head body, the annular groove of the installation device is used for hooking the hook teeth of the shell pulling hook, the installation device is downwards pulled to enable the installation device to rotate around the hook teeth of the shell pulling hook, and meanwhile, the working end face of the installation device presses the shell throwing jack into the shell throwing jack, so that the notch of the shell throwing jack is aligned with the shell throwing jack hole;
s4, continuously pulling the mounting device until the end face of the working end of the mounting device is stuck to the spring bottom nest mirror face of the machine head body, and knocking the shell throwing tappet into the shell throwing tappet hole;
s5, after the shell throwing tappet is assembled, the mounting device is taken down, and the shell throwing tappet outwards flicks under the action of the shell throwing tappet spring until the shell throwing tappet is locked by the shell throwing tappet, and the shell throwing tappet is mounted.
2. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: the head of the pull shell hook top head is a half ball head, and an arc surface is formed.
3. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: and the head of the pull shell hook top is rounded to form an arc surface.
4. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: the arc of the top of the shell pulling hook is contacted with the inclined plane of the tail end of the shell pulling hook, and the arc is positioned at the outer side of the shell pulling hook.
5. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: the top of the shell pulling hook is in a stepped shaft shape, and the small-diameter section of the top is sleeved in the shell pulling hook spring.
6. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: the arc surface of the top of the shell pulling hook is tangent to the inclined surface of the tail end of the shell pulling hook.
7. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: when the shell throwing tappet is disassembled, the annular groove of the mounting device is used for hooking the hook tooth of the shell pulling hook, the shell throwing tappet is pressed into the shell throwing tappet hole, the shell throwing tappet pin is knocked out, and the shell throwing tappet spring are sequentially taken out after the mounting device is taken down.
8. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: the end face of the working end of the mounting device is provided with a yielding hole for yielding the firing pin.
9. The method for installing an elastic shell-throwing gun jack according to claim 1, wherein the method comprises the following steps: in S1, the method for installing the shell pulling hook, the shell pulling hook pin, the shell pulling hook spring and the shell pulling hook plug comprises the following steps:
sequentially loading the shell pulling hook spring and the shell pulling hook plug into a plug hole of the machine head body, overcoming the spring force of the shell pulling hook spring, completely pressing the shell pulling hook plug into the plug hole of the machine head body, and pressing the shell pulling hook plug to keep the shell pulling hook plug in place;
placing the shell pulling hook in place and locking the shell pulling hook by a shell pulling hook pin;
releasing the top of the shell pulling hook to enable the arc surface of the top of the shell pulling hook to contact with the tail end inclined surface of the shell pulling hook.
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| CN202111095525.4A CN113720204B (en) | 2021-09-17 | 2021-09-17 | Elastic shell throwing gun jack and mounting method thereof |
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| CN202111095525.4A CN113720204B (en) | 2021-09-17 | 2021-09-17 | Elastic shell throwing gun jack and mounting method thereof |
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| CN213049420U (en) * | 2020-06-18 | 2021-04-27 | 小青鸟文化科技(苏州)有限公司 | Special prop gun casting piston for film and television |
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2021
- 2021-09-17 CN CN202111095525.4A patent/CN113720204B/en active Active
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