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CN-121992998-A - Front cover lock opening tool for headstock

CN121992998ACN 121992998 ACN121992998 ACN 121992998ACN-121992998-A

Abstract

The invention relates to a tool for opening a front cover lock of a vehicle head, which comprises a handle, a traction rope, a cam, a push rod, a connecting rod and a shell, wherein the handle is connected with the cam through the traction rope, the cam and the push rod are arranged in the shell, the connecting rod is rotationally connected with the shell, the head end of the connecting rod is used as a rotating shaft, the traction rope pulls the cam to rotate in the shell and presses the push rod, the push rod pushes the connecting rod to tilt upwards to pry a lock head of the front cover lock, the connecting rod is provided with a rod protrusion, the rod protrusion contacts the shell in an initial state, the height of the rod protrusion is set through the cooperation of the rod protrusion and the shell, and the stroke of the connecting rod is controlled to control the stroke of pulling the traction rope to unlock. Compared with the prior art, the engine hood can be opened by a person standing at the front end of the vehicle head, the tool has strong applicability, and the unlocking stroke of the person can be controlled.

Inventors

  • CHEN MEIQING
  • Zang Weigang

Assignees

  • 上海好德机械设备有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (10)

  1. 1. The utility model provides a locomotive protecgulum lock opening tool which characterized in that, this instrument includes handle (1), haulage rope (2), cam (3), ejector pin (4), connecting rod (5) and casing, handle (1) are connected with cam (3) through haulage rope (2), be provided with cam (3) and ejector pin (4) in the casing, connecting rod (5) are connected with the casing rotation, the head end of connecting rod (5) is as the axis of rotation, haulage rope (2) pulls cam (3) in the casing internal rotation, presses and touches ejector pin (4), and this ejector pin (4) promote connecting rod (5) and upwarp, sled tapered end (91) of protecgulum lock (9); The connecting rod (5) is provided with a rod protrusion (511), the rod protrusion (511) contacts with the shell in an initial state, the height of the rod protrusion (511) is set through the cooperation of the rod protrusion (511) and the shell, and the stroke of the connecting rod (5) is controlled to control the stroke of pulling the traction rope (2) to unlock.
  2. 2. The headstock front cover lock opening tool according to claim 1, wherein the cam (3) is provided with a cam (32), the cam (32) is exposed out of the casing, and the cam (3) is fixedly connected with the traction rope (2) through the cam (32).
  3. 3. The headstock front cover lock opening tool according to claim 1, wherein the housing comprises a base (7) and a cover plate (8), the base (7) is provided with the cover plate (8), the base (7) is divided into a rotating area and a pushing area by a partition plate, a rotating shaft (31) is arranged in the rotating area on the base (7), the cam (3) rotates in the rotating area around the rotating shaft (31), the ejector rod (4) penetrates through the partition plate, and two ends of the ejector rod (4) are respectively located in the rotating area and the pushing area.
  4. 4. A vehicle front cover lock opening tool according to claim 3, characterized in that the cam (3) is provided with a chute (33), the limiting pin (6) penetrates through the cover plate (8) and stretches into the chute (33), the travel of the cam (3) is controlled by matching the chute (33) with the limiting pin (6), so as to control the travel of pulling the traction rope (2) to unlock.
  5. 5. A front cover lock opening tool according to claim 3, characterized in that the connecting rod (5) comprises a connecting rod (51) and a prying rod (52), the prying rod (52) is arranged between the connecting rods (51), the head end of the connecting rod (51) is used as a rotating shaft, a rod protrusion (511) is arranged in the middle, the tail end of the connecting rod is connected with the prying rod (52), the ejector rod (4) pushes the connecting rod (51) to tilt upwards, and the prying rod (52) is driven to pry a lock head (91) of the front cover lock (9).
  6. 6. The tool for unlocking a head cover lock according to claim 5, wherein the connecting rod (51) is arc-shaped, and the bending direction is directed in the direction of the lock head (91); The prying bar (52) is in a two-section arc shape, the bending direction of the head part is consistent with that of the connecting rod (51), and the bending direction of the tail part is opposite to that of the lock head (91).
  7. 7. The tool for unlocking a head cover lock according to claim 5, wherein the contact point of the ejector rod (4) with the connecting rod (51) is located below the head end of the connecting rod (51).
  8. 8. The tool for unlocking a head cover lock according to claim 5, wherein the shape of both ends of the carrier rod (4) is a disc.
  9. 9. The tool for unlocking the front cover lock of the bicycle according to claim 8, wherein a spring is arranged between one end of the ejector rod (4) near the connecting rod (51) and the partition plate.
  10. 10. A vehicle head cover lock opener according to claim 9, characterized in that in the initial state one end of the carrier rod (4) is free from the connecting rod (51).

Description

Front cover lock opening tool for headstock Technical Field The invention belongs to the technical field of headstock front cover locks, and relates to a headstock front cover lock opening tool. Background In the assembly line, when parts are installed at stations, the engine cover at the front end of the headstock can be repeatedly opened, under the beat of 60jph loading time, workers need to pull the engine cover from the headstock to the driver seat side in the engine cover closing state, time and labor are wasted, and workers need to stand at the front end of the headstock to open the front cover lock through a tool. Patent CN212507764U discloses a helicopter sliding cabin door locking mechanism, including setting up the handle subassembly in the cabin door body, go up lock box subassembly and lock down the box subassembly to and set up the last lock seat subassembly and the lock seat subassembly down in the cabin door frame, go up lock box subassembly and connect the handle subassembly through last wire rope subassembly, lock down the box subassembly and connect the handle subassembly through lower wire rope subassembly. But this patent acts on helicopter sliding hatch door on the one hand, is not applicable to locomotive front end bonnet, and on the other hand wire rope subassembly drives the latch hook in the lock box subassembly and directly breaks away from the lock post, and locking mechanism opens, and locking mechanism and helicopter sliding hatch door are integrated into one piece design, can't be applicable to the helicopter of different models as universal mechanism, nor carry out special design to the stroke that personnel pulled wire rope subassembly yet. Disclosure of Invention The invention aims to overcome at least one defect in the prior art and provide a vehicle head front cover lock opening tool, which enables a person to open an engine cover when standing at the front end of a vehicle head, has strong tool applicability and can control the unlocking stroke of the person. The aim of the invention can be achieved by the following technical scheme: One of the technical schemes of the invention is to provide a tool for opening a headstock front cover lock, which comprises a handle, a traction rope, a cam, a mandril, a connecting rod and a shell, wherein the handle is connected with the cam through the traction rope, the cam and the mandril are arranged in the shell, the connecting rod is rotationally connected with the shell, the head end of the connecting rod is used as a rotating shaft, the traction rope pulls the cam to rotate in the shell and press and contact the ejector rod, and the ejector rod pushes the connecting rod to tilt upwards to pry the lock head of the front cover lock; Be provided with the pole protruding on the connecting rod, the protruding contact casing of pole during initial state sets up the protruding height of pole through protruding and casing cooperation of pole, controls the stroke of connecting rod to the stroke that the control personnel pulled haulage rope to unlock can pull the short distance, and protruding height of pole is great when from initial state, and to the connecting rod upwarp short distance just sled lock, convenient unblock also can pull longer distance, and protruding height of pole is less when from initial state, and to the connecting rod upwarp long distance just sled lock, prevent the mistake and touch. As the preferable technical scheme, a through hole is formed in the handle, and the hauling rope penetrates through and is fixed in the through hole to be connected with the handle. Further, the cam is provided with a cam, the cam is exposed out of the shell, and the cam is fixedly connected with the traction rope through the cam. Further, the casing includes base and apron, be provided with the apron on the base, the base is separated into rotation district and promotion district by the baffle, be provided with the pivot on the base in rotation district, the cam revolutes the pivot and rotates in rotation district, the ejector pin passes the baffle, the both ends of ejector pin are located rotation district and promotion district respectively. As a preferable technical scheme, the cover plate is fixed on the base through bolts. As an optimal technical scheme, a round groove is formed in the rotating area, and the cam rotates in the round groove. Further, the sliding groove is formed in the cam, the limiting pin penetrates through the cover plate and stretches into the sliding groove, the sliding groove is matched with the limiting pin, the stroke of the cam is controlled, the stroke of unlocking by pulling the traction rope by a control person is controlled, the cam is beyond the radian of the sliding groove, and the cam cannot rotate to prevent false touch. Further, the connecting rod includes connecting rod and pry bar, and this pry bar sets up between the connecting rod, the head end of connecting rod is as the axis of rotation, and