CN217739807U

CN217739807U - Hand cranking shaft for mechanical handle hand cranking

Info

Publication number: CN217739807U
Application number: CN202221057523.6U
Authority: CN
Inventors: 潘江波
Original assignee: Ningbo Shanmu Leisure Import And Export Co ltd
Current assignee: Ningbo Shanmu Leisure Import And Export Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-11-04
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a mechanical type handle is rocking handle for hand, including the rocking handle axle body, the one end of rocking handle axle body is coaxial to be provided with rotates the mount pad, and characteristics are rocking handle axle body and rotate and be removable fixed connection between the mount pad. The advantage is simple structure, be removable fixed connection between cranking bar body and the rotation mount pad, be split type structure between cranking bar body and the rotation mount pad promptly, so different rotation installation axles can be joined in marriage according to the product demand of concrete adaptation to same cranking bar body, or different cranking bar body can be joined in marriage according to concrete product demand to same rotation installation axle, form the modularized design, realize the commonality configuration of part, both can choose for use different material preparation for use according to the intensity difference that uses and form, whole manufacturing cost has effectively been reduced.

Description

Hand cranking shaft for mechanical handle hand cranking

Technical Field

The utility model belongs to the technical field of mechanical type handle hand cranking technique and specifically relates to a mechanical type handle hand cranking shaft is used.

Background

Mechanical handle hand cranking is the common instrument that is used for rotating wheel etc. on a drive mechanical device, and it often is by manual operation when using, aims at the connector at the position that needs the drive rotation with the hand cranking, and the handle that rotates the hand cranking drives corresponding part and takes place to rotate. Wherein, the hand cranking shaft is an important part that constitutes mechanical type handle hand cranking, usually including the hand cranking shaft body, and the one end of hand cranking shaft body has the rotation mount pad that is used for whole hand cranking to rotate the installation on corresponding the product, and the other end of hand cranking shaft body is used for being connected with the hand cranking. The existing hand crank has various specifications and types due to different structures, sizes and bearing torques of products matched with the hand crank, and the existing hand crank shaft is of an integrated structure, namely a rotary mounting seat and a hand crank shaft body are integrally formed and manufactured, so that the universality is poor, different hand crank shafts are required to be manufactured for matching different hand cranks, and a plurality of molds are required to be arranged, so that the integral manufacturing cost is high; in addition, the strength requirements for the hand crank shaft body and the rotating mounting seat are different in practical application, but the hand crank shaft body and the rotating mounting seat are of an integrated structure, so that the whole body needs to be manufactured according to the high-strength material selection requirement, and the manufacturing cost is increased virtually.

Disclosure of Invention

The utility model aims to solve the technical problem that a mechanical type handle for shaking hand that simple structure, commonality are good, can effectively reduce whole manufacturing cost is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a mechanical type handle is rocking handle for hand, includes the rocking handle axle body, the one end coaxial arrangement of rocking handle axle body rotate the mount pad, the rocking handle axle body with the rotation mount pad between be removable fixed connection.

The one end of handle shaft body for be used for with the installation end of rotation mount pad cooperation installation, the rotation mount pad in be provided with installation end looks complex installation cavity, the installation end stretch into the setting and be in the installation cavity and with the installation cavity tight fit. Through the close-fitting connection of installation cavity and installation end, realize rotating the fixed mounting of mount pad and hand crank shaft body, simple structure.

The rotary mounting seat is provided with a mounting hole which is coaxial and communicated with the mounting cavity, the mounting end is coaxially provided with a mounting screw hole, and a matched bolt or screw penetrates through the mounting hole which is in threaded connection with the mounting screw hole to realize the fixed connection between the hand crank shaft body and the rotary mounting seat. Through the cooperation of bolt or screw and mounting hole and installation screw, realize further stable installation between them, also can reduce the cooperation required precision between installation cavity and the installation end to a certain extent, effectively reduce manufacturing cost.

An anti-rotation mechanism is arranged between the mounting cavity and the mounting end. After the rotation prevention mechanism is used for realizing the installation of the hand crank shaft body and the rotation installation seat, the hand crank shaft body and the rotation installation seat cannot rotate relatively.

Prevent changeing the mechanism and include and link up the setting along the axial and be in the hand cranking shaft body on prevent changeing the recess and set up the installation intracavity with prevent changeing recess matched with prevent changeing the lug, prevent changeing the lug embedding setting and be in prevent changeing the recess in. The anti-rotation mechanism is simple in structure and easy to manufacture and assemble.

The rotation-proof groove is at least one.

The anti-rotation grooves are multiple and are uniformly distributed around the central axis of the hand cranking shaft at intervals, the anti-rotation lugs are matched with the anti-rotation grooves in quantity, and one anti-rotation groove corresponds to one anti-rotation lug. The matching of the anti-rotation grooves and the anti-rotation lugs ensures the reliability of anti-rotation connection.

It is adjacent prevent changeing and form between the recess and prevent changeing protruding muscle, the outside terminal surface of preventing changeing protruding muscle constitute by two oblique terminal surfaces that are mirror symmetry, two the outer end of oblique terminal surface draw close each other and be connected by a terminal surface, two the inner of oblique terminal surface keep away from each other, adjacent prevent changeing between the lug form with prevent changeing protruding muscle matched with prevent changeing sunken, one prevent changeing protruding muscle correspond one prevent changeing sunken. The structure can ensure stable connection and enough torque transmission.

The mounting screw hole is axially arranged at the center of the hand crank shaft body in a penetrating way. And the processing and the manufacturing are easy.

Compared with the prior art, the utility model has the advantages of: simple structure, be removable fixed connection between cranking axle body and the rotation mount pad, be split type structure between cranking axle body and the rotation mount pad promptly, different rotation installation axles can be joined in marriage according to the product demand of concrete adaptation to same cranking axle body so, or different cranking axle bodies can be joined in marriage according to specific product demand to same rotation installation axle, form the modularized design, realize the commonality configuration of part, both can choose for use different material preparation for use according to the intensity difference that uses and form, whole manufacturing cost has effectively been reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the present invention installed in cooperation with a handle;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, a hand crank shaft for a mechanical handle hand crank comprises a hand crank shaft body 1, wherein a rotary mounting seat 2 is coaxially arranged at one end of the hand crank shaft body 1, and the hand crank shaft body 1 and the rotary mounting seat 2 are detachably and fixedly connected.

In this embodiment, one end of the handle shaft body 1 is a mounting end 11 for being mounted in cooperation with the rotating mounting base 2, a mounting cavity 21 matched with the mounting end 11 is provided in the rotating mounting base 2, and the mounting end 11 extends into the mounting cavity 21 and is tightly fitted with the mounting cavity 21. Through the close-fitting connection of installation cavity 21 and installation end 11, realize rotating the fixed mounting of mount pad 2 and hand cranking shaft body 1, simple structure.

In this embodiment, the rotating mounting base 2 is provided with a mounting hole 22 coaxial with and penetrating through the mounting cavity 21, the mounting end 11 is coaxially provided with a mounting screw hole 111, and the fixed connection between the hand crank shaft body 1 and the rotating mounting base 2 is realized by screwing a matching bolt or screw 10 into the mounting screw hole 111 through the mounting hole 22. Through the cooperation of bolt or screw 10 and mounting hole 22 and installation screw hole 111, realize further stable installation of both, also can reduce the cooperation required precision between installation cavity 21 and the installation end 11 to a certain extent, effectively reduce manufacturing cost.

In this embodiment, an anti-rotation mechanism is provided between the mounting cavity 21 and the mounting end 11. After the hand cranking shaft body 1 and the rotating installation seat 2 are installed through the anti-rotating mechanism, the hand cranking shaft body and the rotating installation seat cannot rotate relatively.

In this embodiment, the rotation-preventing mechanism includes a rotation-preventing groove 12 axially penetrating the handle shaft body 1 and a rotation-preventing protrusion 211 disposed in the mounting cavity 21 and engaged with the rotation-preventing groove 12, and the rotation-preventing protrusion 211 is embedded in the rotation-preventing groove 12. The anti-rotation mechanism is simple in structure and easy to manufacture and assemble.

In this embodiment, the rotation-preventing groove 12 is at least one.

In this embodiment, there are a plurality of anti-rotation grooves 12, the anti-rotation grooves 12 are uniformly spaced around the central axis of the handle shaft, the number of the anti-rotation protrusions 211 matches with the number of the anti-rotation grooves 12, and one anti-rotation groove 12 corresponds to one anti-rotation protrusion 211. The cooperation of the anti-rotation grooves 12 and the anti-rotation projections 211 ensures the anti-rotation connection reliability.

In this embodiment, the anti-rotation ribs 13 are formed between adjacent anti-rotation grooves 12, the outer end surface of each anti-rotation rib 13 is formed by two inclined end surfaces 131 which are mirror-symmetrical, the outer ends of the two inclined end surfaces 131 are close to each other and connected by a flat end surface 132, the inner ends of the two inclined end surfaces 131 are far away from each other, the anti-rotation recesses 212 which are matched with the anti-rotation ribs 13 are formed between adjacent anti-rotation protrusions 211, and one anti-rotation rib 13 corresponds to one anti-rotation recess 212. The structure can ensure stable connection and ensure sufficient torque transmission.

In this embodiment, the mounting screw hole 111 is provided through the center of the handle shaft body 1 in the axial direction. And the processing and the manufacturing are easy.

Claims

1. The utility model provides a mechanical type handle is rocking handle with rocking handle, includes the rocking handle axle body, the one end coaxial of rocking handle axle body be provided with and rotate the mount pad, its characterized in that the rocking handle axle body with rotate the mount pad between be removable fixed connection.

2. The hand crank shaft for the mechanical handle crank as claimed in claim 1, wherein one end of the hand crank shaft body is a mounting end for fitting with the rotating mounting seat, a mounting cavity fitting with the mounting end is provided in the rotating mounting seat, and the mounting end extends into the mounting cavity and is tightly fitted with the mounting cavity.

3. The mechanical handle hand crank shaft as claimed in claim 2, wherein the rotary mounting seat is provided with a mounting hole coaxial with and penetrating through the mounting cavity, the mounting end is coaxially provided with a mounting screw hole, and the hand crank shaft body is fixedly connected with the rotary mounting seat by passing a matched bolt or screw through the mounting hole and being screwed in the mounting screw hole.

4. The hand crank shaft of claim 2, wherein an anti-rotation mechanism is disposed between the mounting cavity and the mounting end.

5. The mechanical handle crank hand crank shaft according to claim 4, wherein the rotation preventing mechanism comprises a rotation preventing groove axially penetrating the crank shaft body and a rotation preventing protrusion disposed in the mounting cavity and engaged with the rotation preventing groove, the rotation preventing protrusion being embedded in the rotation preventing groove.

6. A hand crank shaft for a mechanical hand crank as claimed in claim 5, wherein the rotation preventing recess is at least one.

7. The mechanical handle crank shaft as claimed in claim 6, wherein the rotation-preventing grooves are formed in a plurality, the rotation-preventing grooves are uniformly spaced around the central axis of the crank shaft, the number of the rotation-preventing protrusions is matched with that of the rotation-preventing grooves, and one rotation-preventing groove corresponds to one rotation-preventing protrusion.

8. The hand crank shaft according to claim 7, wherein the anti-rotation grooves are formed by two oblique end faces that are mirror-symmetrical, the outer ends of the two oblique end faces are close to each other and connected by a flat end face, the inner ends of the two oblique end faces are far away from each other, the anti-rotation protrusions adjacent to each other are formed by anti-rotation recesses that are matched with the anti-rotation ribs, and one anti-rotation rib corresponds to one anti-rotation recess.

9. A hand crank shaft as claimed in claim 3, wherein said mounting screw hole is formed through the center of said hand crank shaft body in the axial direction.