CN111521063B

CN111521063B - Non-return unlocking mechanism, launching system and toy gun

Info

Publication number: CN111521063B
Application number: CN202010363551.XA
Authority: CN
Inventors: 孙晓慧
Original assignee: Beijing Yilin Technology Co ltd
Current assignee: Sun Xiaohui
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-09
Anticipated expiration: 2040-04-30
Also published as: CN111521063A

Abstract

The invention relates to a non-return unlocking mechanism, comprising: a ratchet assembly, a ratchet and a non-return pawl for preventing reverse rotation of the ratchet; the unlocking assembly comprises a plate part which is pivotally arranged above the non-return pawl and a convex rod which is arranged to protrude out of the plate surface of the plate part, and when the plate part rotates towards the direction close to the non-return pawl, the convex rod can push the non-return pawl to rotate towards the direction of disengaging from the ratchet wheel; the control assembly comprises a controller piece movably or rotatably arranged above the plate part, the lower end part of the controller piece and the upper end part of the plate part form a non-return interaction structure, and when the controller piece moves a certain preset distance or rotates a certain preset angle, the plate part is pressed to rotate towards the direction close to the non-return pawl; when the ratchet pawl is disengaged from the ratchet wheel, the ratchet wheel can be driven to rotate in the reverse direction. The non-return unlocking mechanism can relieve the one-way running state of the ratchet wheel, so that the ratchet wheel can be reversed, the whole system can be ensured to recover the initial state under the non-working state, and the mechanical performance and the service life of the system are ensured.

Description

Non-return unlocking mechanism, launching system and toy gun

Technical Field

The invention belongs to the field of machine manufacturing, and particularly relates to a non-return unlocking mechanism, a launching system and a toy gun.

Background

The principle of the mechanical launching system for launching operation is that motor power is conducted through n (2-6) stage gears under the condition of electrification, the end tooth-missing gear pulls the piston to pre-compress the main spring, and then the piston can move forwards by releasing the main spring, so that the launching action is realized. However, in actual operation, the motor may be powered off to reverse the gear with missing teeth, which results in failure of compressing the main spring, therefore, in order to prevent the spring from being compressed due to the power off of the motor in the process of compressing the main spring, the conventional launching system is usually provided with a non-return device for ensuring the unidirectional rotation of the gear and preventing the reverse rotation of the gear.

However, the following disadvantages exist after the non-return device is added to the launching system: when the launching system is in a non-working state, the motor is in a power-off state, but the non-return device locks the gear because the power-off time of the motor cannot be accurately controlled, and finally, the main spring is in a compression state with different degrees for a long time in the non-working state, and in a static state that the main spring is compressed with high strength, the following problems can be caused: (1) when the system is restarted, the phenomenon that the system needs to be restarted with great force due to the large elasticity and the large compression degree of the main spring can occur, and at the moment, if the motor can not output enough power, the system can be locked or internal parts of the system can be damaged due to overlarge pressure; (2) the problem that the main spring has higher probability of being in a continuous compression state when the system is stored due to the fact that the motor cannot be accurately controlled to operate can occur, and therefore the performance of the spring is seriously reduced and the service life of the spring is shortened when the system is in a non-working state.

At present, on the premise of not disassembling the whole system, no mechanical structure capable of conveniently and quickly unlocking the non-return structure exists.

The present invention has been made in view of the above circumstances.

Disclosure of Invention

The invention aims to solve the technical problem of providing a non-return unlocking mechanism which can relieve the one-way running state of a ratchet wheel and enable the ratchet wheel to be reversed, thereby ensuring that the whole system can recover the initial state under the non-working state, and ensuring the mechanical performance and the service life of the system.

In order to solve the above technical problems, a first object of the present invention is to provide a non-return unlocking mechanism, comprising

A ratchet assembly including a ratchet and a backstop pawl for preventing reverse rotation of the ratchet;

the unlocking assembly comprises a plate part which is pivotally arranged above the non-return pawl and a convex rod which is arranged to protrude out of the plate surface of the plate part, and when the plate part rotates towards the direction close to the non-return pawl, the convex rod can push the non-return pawl to rotate towards the direction away from the ratchet wheel;

the control assembly comprises a controller piece movably or rotatably arranged above the plate part, the lower end part of the controller piece and the upper end part of the plate part form a non-return interaction structure, and when the controller piece moves a certain preset distance or rotates a certain preset angle, the plate part is pressed to rotate towards the direction close to the non-return pawl;

when the ratchet pawl is disengaged from the ratchet wheel, the ratchet wheel may be driven to rotate in a reverse direction.

Further optionally, the backstop interaction structure comprises:

the guide limiting part is formed at the upper end of the plate part and comprises a guide inclined plane and a limiting groove positioned at the bottom of the guide inclined plane;

the control mechanism is provided with a guide limiting part, a control mechanism piece and a control mechanism, wherein the guide limiting part is arranged on the control mechanism piece; when the moving distance of the control machine piece is larger than the preset distance or the rotating angle is larger than the preset angle, the interaction teeth move towards the outer side of the limiting groove along the guide inclined surface.

Further optionally, a side of the interacting tooth opposite the guide surface forms an inclined surface that cooperates with the guide inclined surface.

Further optionally, the backstop unlocking mechanism further comprises a driving portion, and the driving portion acts on the control plate to drive the control plate to move or rotate.

The second purpose of the embodiment is to provide a mechanical transmission structure comprising the non-return unlocking mechanism, which comprises

The cylinder pushing mechanism comprises a cylinder barrel, a piston rod and an elastic piece, wherein the piston is slidably arranged in the cylinder barrel, the piston rod is connected with the piston, and the elastic piece is connected with the piston rod and is compressed when the piston rod drives the piston to move towards the direction far away from the cylinder barrel; the outer wall of the piston rod is provided with a rack along the length direction;

the gear train, include with the fixed integrative drive gear of ratchet, with ratchet meshing's intermediate transfer gear, with intermediate transfer gear meshing's final gear, final gear include first gear and with the fixed integrative second gear of first gear, first gear be with the full-tooth gear of intermediate transfer gear meshing, the second gear be with rack toothing's scarce tooth gear.

Further optionally, the resilient member is a spring.

A third object of this embodiment is to provide a firing system including the above mechanical transmission structure, wherein an end of the piston rod away from the elastic member is a firing end.

The fourth object of the invention is to provide a toy gun using the launching system, wherein the toy gun comprises a box body, and the ratchet wheel assembly and the gear set are positioned in the box body; the plate part and the control machine piece are respectively arranged on the outer surface of the box body; the outer surface of the box body and the position corresponding to the motion track of the convex rod are provided with guide grooves, and the convex rod penetrates through the guide grooves and extends into the box body.

Further optionally, a fixing column is arranged on the outer shell surface of the box body, a positioning hole is formed in the position, corresponding to the fixing column, of the board portion, and the board portion is arranged on the outer surface of the box body in a pivoting mode through the matching of the positioning hole and the fixing column.

Further optionally, the toy gun includes a trigger and a locking piece forming a linkage relation with the trigger, the locking piece is arranged at the front end of the control mechanism piece, and when the control mechanism piece moves in a direction of enabling the ratchet wheel to be unlocked, the control mechanism piece pushes the locking piece to enable the trigger to be locked.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the non-return unlocking mechanism can relieve the one-way running state of the ratchet wheel, so that the ratchet wheel can be reversely rotated, and the non-return unlocking mechanism can quickly unlock the ratchet wheel on the premise of not disassembling the whole system, thereby ensuring that the whole system can recover the initial state under the non-working state, and ensuring the mechanical property and the service life of the system.

2. When the non-return unlocking mechanism is applied to the field of launching systems, the spring can be released in a non-working state of the launching system, so that the spring is restored to deform, and the performance and the service life of the spring are ensured.

3. When the launching system is applied to a toy pistol, a non-return interaction structure is arranged between the control mechanism piece and the plate part by utilizing the linkage relation between the existing control mechanism piece, the locking structure and the trigger, so that the ratchet wheel is unlocked while the trigger is locked, and the spring is released; when the trigger is unlocked, the pawl is reset and is matched with the ratchet wheel again, and the two purposes are achieved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1: the state diagram of the using state control machine piece and the plate part of the toy pistol is the state diagram of the toy pistol of the embodiment of the invention;

FIG. 2: the state diagram of the control machine piece and the plate part of the toy pistol in the non-use state of the embodiment of the invention;

FIG. 3: the invention is a schematic view of the complete machine assembly structure of the toy pistol;

FIG. 4: the outer surface structure of the box body of the toy pistol is schematically shown;

FIG. 5: a plan view of the plate portion of a toy pistol according to an embodiment of the invention;

FIG. 6: a perspective view of the plate portion of a toy pistol according to an embodiment of the present invention;

FIG. 7: the structure of the control mechanism of the toy pistol is shown schematically.

Wherein:

1. a ratchet wheel; 2. a piston rod; 21. a piston rod; 22. a transmitting end; 3. an elastic member; 4. a non-return pawl; 5. a plate portion; 51. a limiting groove; 52. a guide slope; 53. positioning holes; 54. a nose bar; 6. a control panel; 61. interacting teeth; 611. an inclined surface; 7. a drive gear; 8. an intermediate transmission gear; 9. a gear with missing teeth; 10. a full-tooth gear; 11. a housing; 12. a box body; 121. the outer surface of the box body; 121. a guide groove; 122. fixing a column;

it should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a backstop unlocking mechanism, which comprises a ratchet assembly, an unlocking assembly and a control assembly. The ratchet assembly comprises a ratchet wheel and a non-return pawl for preventing the ratchet wheel from reversing; the unlocking assembly comprises a plate part which is pivotally arranged above the non-return pawl and a convex rod which is arranged to protrude out of the plate surface of the plate part, and when the plate part rotates towards the direction close to the non-return pawl, the convex rod can push the non-return pawl to rotate towards the direction of disengaging from the ratchet wheel; the control assembly comprises a controller piece which is movably or rotatably arranged above the plate part, the lower end part of the controller piece and the upper end part of the plate part form a non-return interaction structure, and when the controller piece moves a certain preset distance or rotates a certain preset angle, the plate part is pressed to rotate towards the direction close to the non-return pawl; when the ratchet pawl is disengaged from the ratchet wheel, the ratchet wheel can be driven to rotate in the reverse direction.

The non-return unlocking mechanism of the embodiment can realize the unlocking state of the non-return pawl to the ratchet wheel under the non-working state, so that the ratchet wheel can rotate towards the direction opposite to the rotating direction of the working state, other mechanical parts matched with the ratchet wheel can reset in time under the non-working state, and the working performance and the service life of the whole mechanical system are ensured.

The non-return unlocking mechanism of the embodiment can be applied to a mechanical transmission structure; the mechanical transmission structure is further applied to a transmitting system with the mechanical transmission structure; and further to a toy gun having the launching system. In order to better explain the technical scheme of the invention, the embodiment takes a toy gun as an example to explain the technical scheme of the invention in detail.

As shown in fig. 1 to 7, the toy gun of the present embodiment includes a cylinder pushing mechanism, a gear train, and a backstop unlocking mechanism.

As shown in fig. 1 and 2, the cylinder pushing mechanism includes a cylinder, a piston slidably disposed in the cylinder, a piston rod 2 connected to the piston, and an elastic member 3 connected to the piston rod 2, wherein the elastic member 3 is compressed when the piston rod 2 drives the piston to move in a direction away from the cylinder; the outer wall of the piston rod 2 is provided with a rack 21 along the length direction;

the compression of the elastic element 3 can be achieved in the following way: the toy gun is provided with a baffle at one end of the elastic part 3 far away from the piston rod 2, the elastic part 3 is stopped against the baffle, and the elastic part 3 is compressed when the piston rod 2 drives the piston to move towards the direction far away from the cylinder barrel; preferably, the toy gun includes a housing 11, and the cylinder pushing mechanism, the gear train and the backstop unlocking mechanism are located in the housing 11, and the side of the housing 11 near the end of the elastic member 3 forms the baffle plate, and the elastic member 3 is stopped against this part of the housing 11. Preferably, the elastic member 3 of the present embodiment is a spring.

As shown in fig. 1 and 2, the gear set comprises a driving gear 7 fixedly integrated with the ratchet wheel 1, an intermediate transmission gear 8 meshed with the ratchet wheel 1, and a tail end gear meshed with the intermediate transmission gear 8, wherein the ratchet wheel 1 is fixedly arranged above the driving gear 7, and the ratchet wheel 1 and the driving gear 7 rotate synchronously. The driving gear 7 may be driven manually or electrically, and when an electric drive is used, a driving mechanism is further included, which drives the driving gear 7 to rotate. The drive mechanism includes, but is not limited to, a motor or an electric machine. The intermediate transmission gear 8 may be one or more gears, and when there are a plurality of intermediate transmission gears 8, the plurality of intermediate transmission gears 8 are engaged in sequence. The tail end gear comprises a first gear and a second gear which is fixedly integrated with the first gear, the first gear and the second gear rotate synchronously, the first gear is a full-tooth gear 10 meshed with the middle transmission gear 8, and the second gear is a tooth-lacking gear 9 meshed with the rack 21. The first gear is fixedly arranged above or below the second gear.

When the driving gear 7 is driven to rotate, the intermediate transmission gear 8 and the ratchet wheel 1 are sequentially driven to rotate, the intermediate transmission gear 8 rotates to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate, the second gear is the gear 9 with the missing teeth, the gear 9 with the missing teeth is preferably a sector gear, the gear 9 with the missing teeth comprises a gear part and a non-tooth part, when the gear 9 with the missing teeth rotates to the position where the gear part is meshed with the rack 21, the piston rod 2 is pulled through the rack 21 to compress the elastic part 3, when the gear 9 with the missing teeth rotates to the position where the non-tooth part corresponds to the rack 21, no action is performed between the gear 9 with the rack 21, the elastic part 3 resets, and the piston rod 2 moves in the direction opposite to the previous direction under the action of the elastic thrust.

Further, as shown in fig. 1 and 2, the end of the piston rod 2 away from the elastic member 3 is a shooting end 22, and under the reciprocating pushing action of the piston, the bullet is shot out through the shooting end 22. The toy gun of the present embodiment is not limited to the material, shape, and performance of the bullet to which it is applied.

As shown in fig. 1 and 2, and fig. 5 and 6, the backstop unlocking mechanism includes a ratchet assembly, an unlocking assembly and a control assembly. The ratchet assembly comprises a ratchet 1 and a backstop pawl 4 for preventing the ratchet 1 from reversing; the unlocking assembly comprises a movable plate part 5 arranged close to the non-return pawl 4 and a convex rod protruding out of the plate surface of the plate part 5, preferably, the plate part 5 is arranged above the non-return pawl 4 in a pivoting mode, and when the plate part 5 rotates towards the direction close to the non-return pawl 4, the convex rod can push the non-return pawl 4 to rotate towards the direction away from the ratchet 1; the control assembly comprises a controller piece which is movably or rotatably arranged above the plate part 5, the lower end part of the controller piece and the upper end part of the plate part 5 form a non-return interaction structure, and when the controller piece moves a certain preset distance or rotates a certain preset angle, the plate part 5 is pressed to rotate towards the direction close to the non-return pawl 4; when the ratchet pawl 4 is disengaged from the ratchet 1, the ratchet 1 can be driven to rotate reversely. The cross-sectional shape of the nose bar is not limited in this embodiment. The plate portion 5 is located above the ratchet pawl 4, and it is understood that the plate portion 5 is located above the plane of the ratchet pawl 4, and it is also understood that the plate portion 5 is located above the space of the ratchet pawl 4. Of course, it is within the spirit and scope of the present invention that the ratchet pawl 4 can be separated from the ratchet wheel 1 only when the engaging position of the ratchet pawl 4 with respect to the ratchet wheel 1 is below the plane of the plate portion 5 pivotally disposed on the ratchet pawl 4.

When the toy gun is not in use, the driving mechanism is powered off and stops supplying power to the driving gear 7, and the driving gear 7, the intermediate transmission gear 8 and the end gear are all stopped. Because the power-off time of the driving mechanism cannot be accurately judged, the gear part of the gear 9 with missing teeth is meshed with the rack 21 possibly after the power-off of the driving mechanism, the elastic part 3 is still in a compressed state, but the ratchet wheel 1 stops rotating, and the ratchet wheel 1 is locked by the non-return pawl 4 to ensure that the ratchet wheel 1 cannot rotate reversely, so that the whole gear assembly is in a locked state, and the elastic part 3 cannot rebound. When the elastic element 3 is in a high-strength compression state for a long time, the driving mechanism needs to output larger power to restart the gear set to operate when the system is restarted, and if the power of the driving mechanism is insufficient, the system is locked or internal parts of the system are damaged due to overlarge pressure. In addition, the long-term compression of the elastic member 3 during non-use of the toy gun can also seriously affect the elastic performance and the service life. Therefore, the present embodiment can timely release the matching state of the ratchet pawl 4 and the ratchet wheel 1 by adding the non-return unlocking mechanism when the toy gun is not in use, thereby unlocking the gear set. Under the elastic action of the elastic piece 3, the end gear, the intermediate transmission gear 8 and the ratchet wheel 1 reversely rotate, and the elastic piece 3 rebounds and restores to be deformed.

Furthermore, a return spring is arranged on the non-return pawl 4, and before the toy gun is ready to be used, when the control mechanism moves towards the direction opposite to the direction for unlocking the ratchet wheel 1, the non-return pawl 4 is reset under the action of the return spring and acts on the driven gear again.

Further optionally, as shown in fig. 1 and 2, the backstop interaction structure includes: a guide limiting part formed at the upper end of the plate part 5, the guide limiting part including a guide inclined plane 52 and a limiting groove 51 at the bottom of the guide inclined plane 52; when the moving distance of the control machine piece is smaller than a preset distance or the rotating angle is larger than a preset angle, the interactive teeth are limited to move in the limiting groove 51; when the moving distance of the control machine piece is larger than the preset distance or the rotating angle is larger than the preset angle, the interactive teeth move towards the outer side of the limiting groove 51 along the guide inclined plane 52.

Specifically, the limiting groove 51 is formed by inward sinking of one end of the plate part 5 away from the protruding rod, and the interactive teeth are formed by downward extending of the corresponding position of the control panel and the limiting groove 51; the interactive teeth extend into the limiting groove 51, and the control mechanism moves or rotates to drive the interactive teeth to move or rotate. The plate portion 5 includes a rotating end about which the plate portion 5 is pivotally disposed. One specific embodiment of the plate portion 5 of the present embodiment is: as shown in fig. 1 to 3, 5 and 6, the plate portion 5 has a triangular-like structure, the protruding rod is located at the vertex formed by the two short sides of the triangular structure, the rotating end is located at one end of the long side of the triangular structure, the guiding slope 52 and the restricting groove 51 are located on the long side of the triangular structure, and the guiding slope 52 is located on the side of the restricting groove 51 away from the rotating end. The present embodiment can maximally simplify the structure of the plate portion 5 by providing the plate portion 5 in a triangular-like structure, saving the internal space. However, in practical use, the shape of the plate portion 5 is not limited to this, and the present invention is not limited to the specific shape of the plate portion 5. When the moving distance of the control mechanism is greater than the preset distance or the rotating angle is greater than the preset angle, the interactive teeth move to the outer side of the limiting groove 51 along the guide inclined plane 52, and move in the displacement range formed by the bottom wall of the limiting groove 51 and the guide inclined plane 52 without departing from the limiting inclined plane.

Further alternatively, as shown in fig. 1, 2 and 7, the side of the alternating teeth opposite the guide surface forms an inclined surface that cooperates with the guide ramp 52. Specifically, the inclined plane is formed by the interactive tooth and the opposite side of the guide part inclining towards the inner part of the limit groove 51, and when the moving distance of the control machine piece is greater than the preset distance or the rotating angle is greater than the preset angle, the inclined plane of the interactive tooth is in sliding contact with the guide inclined plane 52.

Further optionally, the backstop unlocking mechanism further comprises a driving part acting on the control panel to drive the control panel to move or rotate. When the unlocking operation of the ratchet 1 is required, the movement or rotation of the control machine piece is driven by the movement or rotation driving part. In a specific embodiment, the driving part comprises an operating part and a connecting part, the operating part is located on the outer side of the shell 11, the connecting part is located on the inner side wall of the shell 11 and is used for connecting the driving part with the control machine piece in a linkage mode, and the control machine piece is driven to move or rotate when the operating part is driven to move or rotate in a manual or electric mode from the outer side of the shell 11.

As a further alternative, as shown in fig. 3 and 4, the toy gun of this embodiment further includes a case 12, and the ratchet assembly and the gear set are located in the case 12; the plate portion 5 and the controller chip are respectively disposed on the outer surface 121 of the case; the outer surface 121 of the box body is provided with a guide groove 121 at a position corresponding to the motion track of the protruding rod, and the protruding rod penetrates through the guide groove 121 and extends into the box body 12. This embodiment prevents that precision part from being disturbed and damaging by external world through setting up ratchet subassembly and gear train in a airtight box body 12, simultaneously can follow box body 12 outside through setting up board 5 on box body surface 121 and control board 5 and unblock ratchet 1, can not cause the interference to inside mechanical parts, makes overall structure more succinct pleasing to the eye simultaneously.

Further alternatively, one embodiment of the pivotable arrangement of the plate portion 5 is: the outer surface 121 of the box body is provided with a fixing column 122, a positioning hole is arranged at a position of the plate part 5 corresponding to the fixing column 122, and the plate part 5 is rotatably arranged on the outer surface 121 of the box body through the matching of the positioning hole and the fixing column 122. One embodiment of the pivotable arrangement of the plate portion 5 is: the outer surface 121 of the box body is provided with a positioning hole, and the plate part 5 is provided with a fixing column 122 at a position corresponding to the fixing column 122. The plate portion 5 is pivotally provided on the case body outer surface 121 through positioning holes in cooperation with the fixing posts 122. Further, the housing 11 includes an outer shell which is covered on the outer surface 121 of the case body provided with the plate portion 5 to protect the internal mechanical structure.

Further optionally, the toy gun further comprises a trigger and a locking piece in linkage relation with the trigger, the locking piece is arranged at the front end of the control mechanism piece, and when the control mechanism piece moves towards the direction for unlocking the ratchet 1, the control mechanism piece pushes the locking piece to lock the trigger.

In one embodiment, the locking member includes a linkage block, a return torsion spring is provided on the linkage block, the lower end of the linkage block is pivotally disposed at the front end of the box 12, when the toy gun is in use, the upper end of the linkage block is inclined toward the direction close to the control plate and stops against the control plate, and the trigger is in a state of being able to be pulled. A push rod is connected between the upper end of the linkage block and the trigger, when the control piece moves towards the direction of unlocking the ratchet wheel 1, the control piece pushes the upper end of the linkage block to rotate around the lower end of the linkage block, the upper end of the linkage block rotates to drive the push rod to move, and the trigger is locked by the push rod to be pulled by the push rod to make the trigger unable to be pulled; when the control machine piece moves towards the direction of locking the ratchet wheel 1, the linkage block resets under the action of the reset torsion spring, at the moment, the upper end of the linkage block rotates reversely around the lower end of the linkage block to drive the push rod to move reversely to unlock the trigger, and the trigger can be pulled.

It should be noted that the interlocking relationship among the locking member, the control plate and the trigger is a known technology in the field of toy handguns, and the present embodiment drives the control plate to move to lock the trigger and unlock the ratchet 1 to reset the spring by forming a non-return interaction structure between the lower end of the existing control plate and the upper end of the plate 5; meanwhile, before the pistol is used, the reverse movement of the control mechanism piece is driven to unlock the trigger, and the non-return pawl 4 acts on the ratchet wheel 1 again, so that the use of parts is saved, and the effect of killing two birds with one stone is achieved.

The operation of the toy gun of this embodiment is explained in detail below:

when the toy pistol is in a use state, the driving mechanism drives the driving gear 7 to rotate, the driving gear 7 drives the ratchet wheel 1, the intermediate transmission gear 8 and the tail end gear to rotate, and the toothless gear 9 of the tail end gear is meshed with the rack 21 on the piston rod 2. The non-return pawl 4 is matched with the ratchet wheel 1 and used for ensuring the unidirectional running state of the ratchet wheel 1 and the gear set. When the gear 9 rotates to the position that the gear part is meshed with the rack 21, the gear 9 rotates to move towards the direction of compressing the spring through the piston rod 2, when the gear 9 rotates to the position that the gear part is opposite to the rack 21, no action is exerted between the gear 9 and the piston rod 2, the spring is released to push out the piston rod 2, and accordingly bullets are shot out, and the bullet shooting operation is repeated to form the action of continuously shooting the bullets.

When the toy pistol is not in use, the driving mechanism stops providing power for the driving gear 7, and the driving gear 7, the ratchet wheel 1, the intermediate transmission gear 8 and the end gear stop running. When the control piece is moved in the direction of locking the trigger by manually operating the driving part, the trigger is locked and cannot be pulled, and the non-return pawl 4 is separated from the ratchet 1. If the gear portion of the gear 9 with missing teeth is just in the state of meshing with the rack 21, the spring is in a compressed state, and after the non-return pawl 4 is separated from the ratchet 1, the spring is rebounded and released.

When the toy pistol is to be used, the control mechanism is moved towards the trigger unlocking direction by manually operating the driving part, the trigger is unlocked and can be pulled, the non-return pawl 4 acts on the ratchet wheel 1 again, and after the trigger is pulled, the driving mechanism is started, and the ratchet wheel 1 and the ratchet wheel group are in a one-way operation state.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A backstop unlocking mechanism, characterized by comprising:

when the non-return pawl is disengaged from the ratchet wheel, the ratchet wheel can be driven to rotate reversely;

the backstop interaction structure comprises:

2. The backstop unlocking mechanism according to claim 1 wherein the side of said reciprocal teeth opposite said guide ramp forms an inclined surface cooperating with said guide ramp.

3. The backstop unlocking mechanism according to claim 2 further comprising a drive portion acting on said control plate for driving said control plate to move or rotate.

4. A mechanical transmission structure comprising a backstop unlocking mechanism according to any one of claims 1-3, characterized by comprising:

5. The mechanical transmission structure of claim 4, wherein the elastic member is a spring.

6. A firing system using the mechanical transmission structure as claimed in claim 4 or 5, wherein the end of the piston rod away from the elastic member is a firing end.

7. A toy gun employing the launching system of claim 6, comprising a case, the ratchet assembly and the gear set being located within the case; the plate part and the control machine piece are respectively arranged on the outer surface of the box body; the outer surface of the box body and the position corresponding to the motion track of the convex rod are provided with guide grooves, and the convex rod penetrates through the guide grooves and extends into the box body.

8. The toy gun of claim 7, wherein the case body has an attachment post on a surface thereof, and the plate portion has a positioning hole at a position corresponding to the attachment post, and is pivotally disposed on an outer surface of the case body through engagement of the positioning hole with the attachment post.

9. The toy gun of claim 7 or 8, including a trigger and a locking member in a linked relationship with the trigger, the locking member being disposed at a forward end of the control plate, the control plate urging the locking member to lock the trigger when the control plate is moved in a direction to unlock the ratchet.