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CN-122009655-A - Gear type labor-saving handle device

CN122009655ACN 122009655 ACN122009655 ACN 122009655ACN-122009655-A

Abstract

The invention relates to the field of handle devices, and discloses a gear type labor-saving handle device which comprises two handle mechanisms symmetrically arranged on two sides of a drawing part, wherein each handle mechanism comprises a handle assembly and a self-locking assembly, the self-locking assembly comprises a fixing seat, a locking accessory, a locking part and a driving gear, the locking accessory comprises a locking gear and a locking arm, the fixing seat is also used for being fixed with the drawing part, the handle assembly comprises a handle, and one end of the handle is fixedly connected with the driving gear. The locking device has the advantages that small input torque is converted into large output torque required by driving the locking arm to rotate through the lever action of the long power arm and the transmission ratio amplification action between the driving gear and the locking gear, so that labor-saving operation is realized, the drawing part can be easily pushed into or pulled out of the self-locking part, in addition, the locking part actively locks the locking gear after the locking is finished, the locking arm is prevented from being accidentally separated from a hole site, and the stability and reliability of the locking state are improved.

Inventors

  • Qia Mingzhi
  • YAO HAO
  • ZHANG ZHUO

Assignees

  • 东莞市艾坦五金科技有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. The gear type labor-saving handle device is used for being arranged on a drawing-in part and used for driving the drawing-in part to push in or draw out a self-locking part for accommodating the drawing-in part, and is characterized by comprising two handle mechanisms symmetrically arranged on two sides of the drawing-in part, wherein each handle mechanism comprises a handle assembly and a self-locking assembly; The self-locking assembly comprises a fixed seat, a locking part and a driving gear rotationally connected to the fixed seat, wherein the locking part comprises a locking gear rotationally connected to the fixed seat and a locking arm arranged on the periphery of the locking gear; The handle assembly comprises a handle, wherein one end of the handle is fixedly connected with the driving gear, and the two handles are defined to be in an open state when rotating to be parallel to each other and are in a closed state when rotating until being positioned on the same straight line; when the handle assembly is switched to an open state, the handle drives the locking gear to rotate through the connected driving gear, and drives the corresponding locking arm to retract into the fixing seat, so that the drawing part can be pushed in or drawn out of the self-locking part; when the handle assembly is switched to a closed state, the handle drives the locking gear to reversely rotate through the connected driving gear, drives the corresponding locking arm to extend into a preset hole position of the self-locking piece, and forces one end of the locking piece to lock the locking gear so as to lock the drawing piece and the self-locking piece.
  2. 2. The gear-type labor-saving handle device according to claim 1, wherein the fixed seat is provided with a driven gear, the driven gear comprises a first gear and a second gear which are coaxially arranged up and down, the first gear is meshed with the driving gear and has a radius larger than that of the driving gear, and the second gear is meshed with the locking gear.
  3. 3. The gear-type labor-saving handle device according to claim 1, wherein the fixing seat is provided with a first limit groove and at least one first limit post, the locking piece is provided with a first limit hole corresponding to the first limit post, the first limit post stretches into the corresponding first limit hole and can move in a preset stroke, a first spring is arranged in the first limit groove, and one end of the first spring abuts against the locking piece and is used for forcing the locking piece to move in a direction away from the locking gear.
  4. 4. The gear-type labor-saving handle device according to claim 3, wherein the handle is provided with an adjusting bolt at one side close to the fixing seat, one end of the adjusting bolt can extend out of the handle and is abutted against one end of the locking piece far away from the locking gear, and the force of the handle for pressing the locking piece on the locking gear can be correspondingly adjusted according to the length of the adjusting bolt extending out of the handle.
  5. 5. The geared laborsaving handle apparatus as in claim 1, wherein the self-locking assembly further comprises a telescoping block having a stop on a side thereof adjacent to the latch arm and a latch on a side thereof adjacent to the telescoping block, wherein the stop is located in a rotational path of the latch block following rotation of the latch arm when the telescoping block is positioned within the holder to limit the latch arm from rotating outwardly from the holder to thereby limit spontaneous switching of the handle assembly to the closed condition.
  6. 6. The gear-type labor-saving handle device according to claim 5, wherein the telescopic block is provided with a second limit groove and at least one second limit post, a second limit hole corresponding to the second limit post is formed in a preset position of the fixing seat, the second limit post stretches into the corresponding second limit hole and can move in a preset stroke, a second spring is arranged in the second limit groove, one end of the second spring is abutted to the fixing seat and used for forcing the telescopic block to stretch out of the fixing seat, a roller is rotatably connected to one side, away from the second spring, of the telescopic block, and part of the outer edge of the roller stretches out of the edge of the telescopic block.
  7. 7. The gear-type labor-saving handle device according to claim 5, wherein the preset positions of the fixing seat are respectively provided with a positioning groove and a first positioning block, the positioning groove is used for accommodating the locking arm retracted into the fixing seat and limiting the maximum rotation stroke of the locking arm from outside to inside, and the first positioning block is used for limiting the maximum rotation stroke of the locking arm from inside to outside.
  8. 8. The gear-type labor-saving handle device according to claim 1, wherein a second positioning block is arranged at a preset position of the fixed seat, the second positioning block is used for limiting the maximum rotation stroke of the handle from the closed state to the open state, and the locking piece is used for limiting the maximum rotation stroke of the handle from the open state to the closed state.
  9. 9. The gear-type labor-saving handle device according to claim 1, wherein the handle assembly further comprises a latch hook assembly arranged at one end of the handle far away from the self-locking assembly, the latch hook assembly is provided with a latch hook arm and a push block, the push block is provided with a third limit groove and a third limit hole, the handle is provided with a third limit post corresponding to the third limit hole, the third limit post penetrates through the corresponding third limit hole and can move in a preset stroke and can limit the push block to be separated from the handle, a third spring is arranged in the third limit groove, one end of the third spring is abutted against the handle and used for forcing the push block to be far away from the drawer, and the latch hook arm can be unlocked when the push block moves in a direction approaching to the drawer.
  10. 10. The gear-type labor-saving handle device according to claim 9, wherein one end of the latch arm is a hook body, the other end of the latch arm is rotatably connected to the handle through a rotating shaft, a guide inclined surface is arranged between the hook body and the rotating shaft of the latch arm, the push block is provided with a push column, the rotating shaft sleeve is provided with a torsion spring for forcing the latch arm to rotate around the rotating shaft in a first direction so as to enable the hook body of the latch arm to be locked on the drawer and enable one end of the guide inclined surface to be pressed on the push column, when the push block drives the push column to move along a direction approaching to the drawer, the push column slides along the guide inclined surface so as to enable the latch arm to rotate around the rotating shaft in a second direction so as to enable the hook body of the latch arm to be unlocked on the drawer, and the second direction is opposite to the first direction.

Description

Gear type labor-saving handle device Technical Field The invention relates to the technical field of labor-saving handles, in particular to a gear type labor-saving handle device. Background In the fields of industrial equipment, data centers, rail transit, etc., it is often necessary to push or pull a drawer-out element (e.g., a server main housing, an electrical module, a drawer, etc.) into or out of a self-locking element (e.g., a cabinet, a container, etc.). The traditional drawing and loading part operation mode is mostly direct push-pull, lacks an effective labor-saving mechanism, and when the drawing and loading part is large in size, heavy in weight or tight in matching, an operator needs to consume large physical power, and the pushing and drawing process is not stable enough, so that shaking is easy to generate. In addition, after the drawing-in parts are pushed in place, the existing handle devices are usually locked by adopting simple buckles or elastic sheets, and the locking mode has the defects that on one hand, an operator needs to apply larger force to enable the buckles to overcome elastic deformation to be clamped in a preset position during locking, the operation is laborious, and on the other hand, when the equipment is impacted by vibration or external force, the buckles are easy to separate, so that the locking state is unstable, and potential safety hazards exist. More importantly, the locking and unlocking functions of the conventional handle device are often completed by mutually independent mechanisms, the structure is complex, and the active locking of the locking part after locking cannot be realized, so that the locking reliability is insufficient. In view of the above, it is desirable to provide a geared power-saving handle apparatus that overcomes the above-described drawbacks. Disclosure of Invention The invention aims to provide a gear type labor-saving handle device, which aims to solve the problems that how to enable the handle device to realize labor-saving operation, actively keep a locking state stable after locking and prevent unexpected loosening, realize labor-saving operation when a drawing part is pushed in and pulled out through the cooperation of a handle and a gear transmission mechanism, actively clamp a locking gear through a locking part after locking, and ensure stable and reliable locking state. In order to achieve the above-mentioned purpose, the present invention provides a gear-type labor-saving handle device, which is used for being arranged on a drawing member and used for driving the drawing member to push in or draw out a self-locking member for accommodating the drawing member, and comprises two handle mechanisms symmetrically arranged at two sides of the drawing member, wherein each handle mechanism comprises a handle assembly and a self-locking assembly; The self-locking assembly comprises a fixed seat, a locking part and a driving gear rotationally connected to the fixed seat, wherein the locking part comprises a locking gear rotationally connected to the fixed seat and a locking arm arranged on the periphery of the locking gear; The handle assembly comprises a handle, wherein one end of the handle is fixedly connected with the driving gear, and the two handles are defined to be in an open state when rotating to be parallel to each other and are in a closed state when rotating until being positioned on the same straight line; when the handle assembly is switched to an open state, the handle drives the locking gear to rotate through the connected driving gear, and drives the corresponding locking arm to retract into the fixing seat, so that the drawing part can be pushed in or drawn out of the self-locking part; when the handle assembly is switched to a closed state, the handle drives the locking gear to reversely rotate through the connected driving gear, drives the corresponding locking arm to extend into a preset hole position of the self-locking piece, and forces one end of the locking piece to lock the locking gear so as to lock the drawing piece and the self-locking piece. In a preferred embodiment, the fixing seat is provided with a driven gear, the driven gear comprises a first gear and a second gear which are coaxially arranged up and down, the first gear is meshed with the driving gear and has a radius larger than that of the driving gear, and the second gear is meshed with the locking gear. In a preferred embodiment, the fixing seat is provided with a first limit groove and at least one first limit post, the locking piece is provided with a first limit hole corresponding to the first limit post, the first limit post stretches into the corresponding first limit hole and can move in a preset stroke, a first spring is arranged in the first limit groove, and one end of the first spring is abutted to the locking piece and used for forcing the locking piece to move in a direction away from the locking gear. In a preferred embodiment, an adju