阅读说明：本技术 往复推进机构 (Reciprocating propulsion mechanism ) 是由 冉江南 高奔 李占芯 徐春光 于 2021-08-18 设计创作，主要内容包括：本发明提供了往复推进机构,属于驱动设备领域,包括支架；支架内设有相对其轴向前后移动的推杆,推杆的下方设有对所述推杆的前进位置进行定位的锁止组件,锁止组件固设在支架上；所述锁止组件包括锁止块,锁止块可上下移动,向上运动与推杆上的齿槽对应,对推杆进行限位,锁止块向下运动,与推杆上的齿槽脱离,推杆在推杆复位弹簧的作用下复位,以使得推杆前后往复运动。本发明,能够提高工作到位状态下锁止的可靠性,对解锁机构进行了优化,使其更加符合人机工效学要求,并使使回程复位操作更加方便。(The invention provides a reciprocating propulsion mechanism, which belongs to the field of driving equipment and comprises a bracket; a push rod which moves back and forth relative to the axial direction of the support is arranged in the support, a locking component which is used for positioning the advancing position of the push rod is arranged below the push rod, and the locking component is fixedly arranged on the support; the locking assembly comprises a locking block, the locking block can move up and down, the upward movement corresponds to a tooth groove on the push rod, the push rod is limited, the locking block moves downward and is separated from the tooth groove on the push rod, and the push rod resets under the action of a push rod reset spring so that the push rod can reciprocate back and forth. The invention can improve the locking reliability in the in-place working state, optimizes the unlocking mechanism, ensures that the unlocking mechanism better meets the ergonomic requirement, and ensures that the return reset operation is more convenient.)

1. Reciprocating advancing mechanism, its characterized in that: comprises a bracket;

a push rod which moves back and forth relative to the axial direction of the support is arranged in the support, a locking component which is used for positioning the advancing position of the push rod is arranged below the push rod, and the locking component is fixedly arranged on the support;

the locking assembly comprises a locking block, the locking block can move up and down, the upward movement corresponds to a tooth groove on the push rod, the push rod is limited, the locking block moves downward and is separated from the tooth groove on the push rod, and the push rod resets under the action of a push rod reset spring so that the push rod can reciprocate back and forth.

2. A reciprocating propulsion mechanism as claimed in claim 1, wherein: the locking assembly further comprises a locking mounting seat, a trigger and a locking pressure spring, the locking mounting seat is fixedly arranged in the support, the lower end of the trigger extends out of the support, the middle of the trigger is hinged with the support through a rotating shaft B, and a sliding groove is arranged at the upper end of the trigger and is of a waist-shaped hole structure;

the upper end of the locking mounting seat is provided with a guide groove, the locking block is arranged in the guide groove and slides up and down in a clearance fit manner, the locking block is hinged with one end of the rotating shaft C, the other end of the rotating shaft C is arranged in the slide groove, and the trigger rotates relative to the locking mounting seat so that the rotating shaft C drives the locking block to move downwards;

the lower extreme of guide way is equipped with the locking pressure spring to make the trigger loosen the back, the locking piece upwards resets under the effect of locking pressure spring, corresponds with the tooth's socket of push rod.

3. A reciprocating propulsion mechanism as claimed in claim 1, wherein: the support is of a hollow cylinder structure, a plurality of reinforcing ribs are arranged inside the support, the locking mounting seat is arranged at the hollow position of the support, and a shaft sleeve for ensuring the axial sliding of the push rod and the support is arranged between the push rod and the support.

4. A reciprocating propulsion mechanism as claimed in claim 1, wherein: the push rod is provided with a spring baffle plate, a push rod reset spring is arranged on the outer ring of the push rod and coaxially arranged with the outer ring of the push rod, and the push rod reset spring is arranged between the spring baffle plate and one of the reinforcing ribs of the support, so that the push rod is compressed to bear force after being pushed out forwards.

5. A reciprocating propulsion mechanism as claimed in claim 4, wherein: and a stop block is further arranged on the push rod, and after the push rod is reset, the stop block is attached to one of the reinforcing ribs in the support to limit the initial position of the push rod.

6. A reciprocating propulsion mechanism as claimed in claim 1, wherein: the front end of the bracket is provided with a fixed handle which extends downwards, the fixed handle is hinged with a movable handle, and the fixed handle is also provided with a lower limiting block which is used for limiting the initial position of the movable handle;

the upper end of the movable handle is fixedly provided with a shifting piece, the movable handle rotates to drive the shifting piece to move and incline, friction force is generated between the shifting piece and the push rod 6, and the push rod is driven to move forwards under the action of the friction force;

the outer ring of the push rod is provided with a shifting piece return spring which is arranged between the shifting piece and the reinforcing rib inside the support and used for providing a restoring acting force for the shifting piece, and when the movable handle has no driving force, the movable handle is ensured to be at an initial position.

7. A reciprocating propulsion mechanism as claimed in claim 6, wherein: the movable handle is hinged with the fixed handle through a rotating shaft A.

8. A reciprocating propulsion mechanism as claimed in claim 6, wherein: the area of the outer surface of the push rod matched with the shifting sheet is provided with sand blasting, knurling or thread picking for increasing friction force.

Technical Field

The invention belongs to the field of driving equipment, relates to a driving structure capable of reciprocating, and particularly relates to a reciprocating propulsion mechanism.

Background

Reciprocating propulsion mechanism widely applies to all trades, and the typical crank block mechanism that includes and glue rifle class mechanism, this patent is similar to glue rifle class mechanism. Traditional rifle mechanism is glued to simple structure, the sexual valence relative altitude, nevertheless has following not enoughly:

the locking is realized by depending on the friction angle, so that the reliability is lower, and the locking device is not suitable for occasions with high reliability requirements; when the return stroke operation is finished, the operation is inconvenient because the back stroke operation needs to be manually pulled; the rear-mounted unlocking mechanism is not friendly to human-machine work efficiency and is inconvenient to operate under certain working conditions.

Disclosure of Invention

The invention aims to solve the problem of providing a reciprocating propulsion mechanism, which can improve the locking reliability in a working in-place state, optimize an unlocking mechanism, enable the unlocking mechanism to better meet the ergonomic requirement and enable the return reset operation to be more convenient.

In order to solve the technical problems, the invention adopts the technical scheme that: the reciprocating propulsion mechanism comprises a bracket;

a push rod which moves back and forth relative to the axial direction of the support is arranged in the support, a locking component which is used for positioning the advancing position of the push rod is arranged below the push rod, and the locking component is fixedly arranged on the support;

the locking assembly comprises a locking block, the locking block can move up and down, the upward movement corresponds to a tooth groove on the push rod, the push rod is limited, the locking block moves downward and is separated from the tooth groove on the push rod, and the push rod resets under the action of a push rod reset spring so that the push rod can reciprocate back and forth.

Furthermore, the locking assembly further comprises a locking mounting seat, a trigger and a locking pressure spring, the locking mounting seat is fixedly arranged in the support, the lower end of the trigger extends out of the support, the middle of the trigger is hinged with the support through a rotating shaft B, the upper end of the trigger is provided with a sliding groove, and the sliding groove is of a waist-shaped hole structure;

the upper end of the locking mounting seat is provided with a guide groove, the locking block is arranged in the guide groove and slides up and down in a clearance fit manner, the locking block is hinged with one end of the rotating shaft C, the other end of the rotating shaft C is arranged in the slide groove, and the trigger rotates relative to the locking mounting seat so that the rotating shaft C drives the locking block to move downwards;

the lower extreme of guide way is equipped with the locking pressure spring to make the trigger loosen the back, the locking piece upwards resets under the effect of locking pressure spring, corresponds with the tooth's socket of push rod.

Further, the support is of a hollow cylinder structure, a plurality of reinforcing ribs are arranged inside the support, the locking mounting seat is arranged at the hollow position of the support, and a shaft sleeve for ensuring the axial sliding of the push rod and the support is arranged between the push rod and the support.

Furthermore, a spring baffle is arranged on the push rod, a push rod reset spring is arranged on the outer ring of the push rod and coaxially arranged with the outer ring of the push rod and the push rod reset spring, and the push rod reset spring is arranged between the spring baffle and one of the reinforcing ribs of the support, so that the push rod is compressed to bear force after being pushed out forwards.

Furthermore, a stop block is further arranged on the push rod, and after the push rod is reset, the stop block is attached to one of the reinforcing ribs in the support to limit the initial position of the push rod.

Furthermore, a fixed handle extending downwards is arranged at the front end of the support, a movable handle is hinged to the fixed handle, and a lower limiting block is further arranged on the fixed handle and used for limiting the initial position of the movable handle;

the upper end of the movable handle is fixedly provided with a shifting piece, the movable handle rotates to drive the shifting piece to move and incline, friction force is generated between the shifting piece and the push rod 6, and the push rod is driven to move forwards under the action of the friction force;

the outer ring of the push rod is provided with a shifting piece return spring which is arranged between the shifting piece and the reinforcing rib inside the support and used for providing a restoring acting force for the shifting piece, and when the movable handle has no driving force, the movable handle is ensured to be at an initial position.

Furthermore, the movable handle is hinged with the fixed handle through a rotating shaft A.

Furthermore, the area of the outer surface of the push rod matched with the shifting sheet is provided with sand blasting, knurling or thread picking for increasing friction force.

Compared with the prior art, the invention has the following advantages and positive effects.

According to the invention, the reliability of locking is improved through the push rod with the tooth grooves, the locking assembly similar to a trigger is designed, the tooth grooves are matched, unlocking is conveniently realized, the reliability of locking in a working in-place state is improved, the unlocking mechanism is optimized, the locking mechanism meets the requirements of human-machine ergonomics, return reset operation is more convenient, single-hand operation is facilitated, the occupied space is small, and equipment maintenance in a narrow space is ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a cross-sectional view of a reciprocating propulsion mechanism of the present invention;

FIG. 2 is a sectional view of a locking assembly of the present invention;

FIG. 3 is a side view of the latch assembly of the present invention;

FIG. 4 is a schematic view of the trigger of the lock assembly of the present invention;

FIG. 5 is a schematic view of the tooth slot of the present invention.

Reference numerals:

1. a movable handle; 2. fixing a handle; 3. a rotating shaft A; 4. a lower limiting block; 5. a paddle return spring; 6. a push rod; 7. an upper limit block; 8. a shifting sheet; 9. a shaft sleeve; 10. a locking assembly; 11. a support; 12. a spring baffle; 13. a push rod return spring; 14. a locking mounting seat; 15. a rotating shaft B; 16. a trigger; 17. a locking block; 18. a rotating shaft C; 19. locking the pressure spring; 20. a chute; 21. a tooth socket; 22. and a stop block.

Detailed Description

It should be noted that, in the case of non-patent cases, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of specific embodiments of the invention refers to the accompanying drawings.

As shown in figures 1-5, the reciprocating propulsion mechanism of the present invention comprises a movable handle 1 as a driving part, which is pinned with a fixed handle 2 through a rotating shaft A3 and pushes a plectrum 8 to move forward during rotation.

A fixed handle 2, which is fixedly connected with the bracket 11;

a rotating shaft A3 which realizes the pin joint of the movable handle 1 and the fixed handle 2, so that the movable handle 1 can rotate around the fixed handle 2;

and a lower limit block 4 mounted on the fixed handle 2 for limiting an initial position of the movable handle 1.

A pusher return spring 5, which passes through the push rod 6 and is installed between the pusher 8 and the bracket 11, for providing a restoring force to the pusher 8, ensuring that the movable handle 1 can be in the initial position when the movable handle 1 has no driving force.

Push rod 6, this part are axle type parts, under the effect of plectrum 8, can follow axial displacement, and push rod 6 and fixed handle 2, support 11 are connected through the axle sleeve within a definite time, make and slide more smoothly, push away simultaneously, are equipped with the tooth's socket structure on 6.

And an upper limit block 7 which is used for limiting the initial position of the poking sheet 8, wherein under the condition of no driving force, the poking sheet 8 can keep a vertical state under the action of the poking sheet return spring 5 so as to realize the 'separation' between the poking sheet 8 and the push rod 6.

The shifting piece 8 is fixed at the upper end of the movable handle 1, a certain distance is reserved between the part and the push rod 6, the shifting piece 8 tilts to a certain degree under the action of the movable handle 1 and contacts with the push rod 6 to generate friction force, and the push rod 6 is driven to move forwards under the action of the friction force.

And the shaft sleeves 9 are respectively arranged on the fixed handle 2 and the bracket 11 to ensure that the push rod 6 slides more smoothly.

And the locking assembly 10 is arranged on the bracket 11 and is matched with the tooth groove structure on the push rod 6 to realize unlocking. After unlocking, the push rod 6 moves backward under the action of the push rod return spring 13 and finally returns to the initial position.

A bracket 11, which mainly performs the connecting and supporting function.

The spring baffle 12 is arranged on the push rod 6 and is mainly used for realizing the limit of a push rod return spring 13; the push rod 6 is further provided with a stop block 22, the stop block 22 limits the rear limit position of the push rod 6, and in the rear limit position, the stop block 22 is matched with a rib plate in the support 11 to realize limiting.

And a push rod return spring 13 which penetrates the push rod 6 and is installed between the movable handle 12 and the bracket 11 for providing an elastic force when the push rod 6 is returned.

And a locking mounting seat 14 which is mounted on the bracket 11 and is mainly used for mounting the rotating shaft B15, the trigger 16, the locking block 17, the rotating shaft C18 and the locking pressure spring 19.

Pivot B15 which provides a pinned connection between the trigger 16 and the latch mount 14, allowing the trigger 16 to pivot about the latch mount 14.

The trigger 16, which is the drive mechanism for the latch assembly 10, is rotatable about an axis of rotation B15. The trigger 16 is provided with a sliding groove 20, and in the rotating process of the part, the rotating shaft C18 and the locking block 17 are driven to move downwards, and finally the locking assembly 10 is unlocked.

A locking block 17, which is mounted as a slider on the locking mount 14 and which is connected to the trigger 16 via a pivot C18 (slider mode), is provided with a tip which engages with a spline of the push rod 6.

A pivot C18 which is pinned to lock mount 14 and lock block 17 and moves as a slide on the slide slot of trigger 16.

And a locking pressure spring 19 which is arranged on the locking mounting seat 14 and provides a certain pushing force for the locking block 17.

The slide channel 20, which is located on the trigger 16, adds one degree of freedom to the latch assembly 10.

The tooth groove 21 is positioned on the push rod 6 and matched with the tail end of the locking block 17, so that the push rod 6 can move forwards in a driving state, and the locking is realized in a non-driving state.

Preferably, the area of the outer surface of the push rod 6 matched with the shifting piece is provided with sand blasting, knurling or screw thread raising for increasing friction force, so that the push rod 6 is driven to move when the shifting piece 8 moves.

And (3) a driving process: the movable handle 1 is rotated to enable the movable handle 1 to rotate by a certain angle, the tail end of the movable handle 1 acts on the shifting piece 8, the shifting piece 8 inclines under the action of the movable handle 1, contacts with the push rod 6 and generates friction force (the friction force is larger than the elastic force and the axial load of the push rod reset spring), the movable handle 1 continues to be rotated, the shifting piece 8 moves forwards under the action of the movable handle 1, and the push rod 6 is driven to move forwards by a certain distance (larger than the distance between two adjacent tooth grooves 21). Meanwhile, the front end tooth groove of the push rod 6 pushes the locking mounting seat 14 to move downwards, and after one-time driving is completed, the locking mounting seat 14 resets and is in contact with the next tooth groove 21 and locked. At this point, one drive is completed. At this time, the movable handle 1 is free, and the plectrum 8 is reset under the action of the plectrum reset spring 5, and drives the movable handle 1 to reset.

An unlocking process: in a locking state, under the action of the locking pressure spring 19, the tail end of the locking block 17 is in contact with a tooth groove on the push rod 6, so that locking is realized. And when the trigger 16 is pressed, under the action of the structural sliding groove 20, the locking pressure spring 19 and the locking block 17 move downwards, so that the locking block 17 is separated from the tooth groove of the push rod 6 finally, and the push rod 6 is unlocked. The push rod 6 is reset under the action of the push rod reset spring 13.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.