CN114228780B

CN114228780B - Bury formula switch machine hand trigger mechanism

Info

Publication number: CN114228780B
Application number: CN202111358612.4A
Authority: CN
Inventors: 袁璐莹; 蒉凯腾; 陈挺; 康爱伟; 王宏亮
Original assignee: CRSC Wanquan Signaling Equipment Co Ltd
Current assignee: CRSC Wanquan Signaling Equipment Co Ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2024-01-30
Anticipated expiration: 2041-11-16
Also published as: CN114228780A

Abstract

The invention relates to the field of mechanical structures of point machines, in particular to a hand pulling mechanism of an underground point machine, which comprises a pulling turning block and a control component, wherein a short shaft is arranged at the middle position of the top of the pulling turning block, a crow bar is inserted and arranged on the periphery of the short shaft, a main shaft is connected with one side of the pulling turning block along the horizontal direction in a key manner, and the control component is fixedly arranged on one side of the pulling turning block, which is away from the main shaft. According to the invention, the travel switch and the crowbar are integrally arranged, so that the working efficiency is improved, and the use safety of workers is ensured. Through setting up the crowbar into assembled, increased application range, satisfied the demand under the different circumstances of staff.

Description

Bury formula switch machine hand trigger mechanism

Technical Field

The invention relates to the field of mechanical structures of point switches, in particular to a hand pulling mechanism of an underground point switch.

Background

A switch machine is a switch switching tool commonly used in the field of rail transit, and when two rails of a track line merge into a single rail, a switching mechanism must be provided to select which of the two merged rails is aligned with the single rail for the desired route of the railway vehicle. The switch mechanism is driven by a reversible motor which moves the operating lever or push rod linearly to move the switch in a direction transverse to the track, and the switch mechanism can move the switch by a sliding nut.

In addition to motor drive, a manual mechanism can be provided to move the switch in the event of a motor failure or power failure. When the hand board is inserted, in order to prevent a person from operating the motor by mistake and rotating the motor to hurt the person, an action circuit of the motor must be disconnected. The safety contact is increased, the manual operating mechanism and the safety contact in the prior art are both positioned in the casing of the switch machine, the switching mechanism generally needs to open a machine cover in the operation process, the safety contact is pulled to the stopping direction of the motor, the action line of the motor is cut off, and then the hand is pulled deep into the casing, so that the hand-operated handle drives the motor spindle to rotate. Due to the field environment and the like, the cover cannot be opened normally. This presents difficulties in routine maintenance and emergency operations, and there is an urgent need for a buried switch machine hand-operated mechanism in order to improve the efficiency and safety of the maintenance process of the switch machine.

Disclosure of Invention

Therefore, the invention aims to solve the problem that the manual mechanism of the switch machine is driven to move outside the machine in a crowbar pulling mode by adopting a new design, and simultaneously, the travel switch and the crowbar are integrally arranged, so that the safety of staff is ensured.

In order to solve the problems, the technical scheme adopted by the invention is that the hand pulling mechanism of the buried switch machine comprises a first crowbar, a second crowbar, a pulling rotating block, a control assembly and a main shaft, wherein one side of the pulling rotating block is connected with the main shaft through a key, one side of the pulling rotating block, which is away from the main shaft, is connected with the control assembly through a screw, the center of the pulling rotating block extends out of a short shaft along the vertical direction, and the second crowbar is inserted into the short shaft of the pulling rotating block.

Further, the control assembly comprises a shell, a travel switch and a waterproof connector, wherein the travel switch and the waterproof connector are arranged in the shell.

The working principle of the invention is that when in actual use, the main shaft is connected to the manual mechanism of the switch machine, then the crow bar is inserted into the main shaft of the pulling block, and meanwhile, the travel switch is powered off, and the manual mechanism of the switch machine is driven to rotate by pulling the crow bar, so that the switch is switched.

The technical scheme provided by the invention has the following beneficial effects:

1. according to the invention, the travel switch and the crowbar are integrally arranged, so that the working efficiency is improved, and the use safety of workers is ensured.

2. According to the invention, the crowbar is assembled, so that the application range is increased, and the requirements of different conditions of staff are met.

Drawings

FIG. 1 is a schematic view showing the overall structure of a trigger mechanism of an underground switch machine according to the present invention;

FIG. 2 is a schematic diagram of a trigger control assembly for an underground switch machine according to the present invention;

FIG. 3 is a left side view of a housing of a trigger control assembly of a buried switch machine according to the present invention;

FIG. 4 is a left side view of a buried switch machine hand trigger handling block of the present invention;

FIG. 5 is a cross-sectional view of a trigger spindle of an underground switch machine according to the present invention.

Reference numerals: 1. a steel pipe; 2. a first crowbar; 3. a screw; 4. a second crowbar; 5. pulling the rotating block; 6. a main shaft; 7. a control assembly; 71. a travel switch; 72. a housing; 73. waterproof joint.

Detailed Description

The switch hand trigger mechanism according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the hand trigger mechanism comprises a steel pipe 1, a first crow bar 2, a screw rod 3, a second crow bar 4, a pulling rotating block 5, a main shaft 6 and a control assembly 7, wherein the steel pipe is sleeved on the top end of the first crow bar, the screw rod is fixedly connected to the top end of the second crow bar, the first crow bar and the second crow bar are connected through threads, one end of the second crow bar is inserted and arranged on the pulling rotating block, one side of the pulling rotating block along the horizontal direction is fixedly connected with the main shaft, and one side of the pulling rotating block deviating from the main shaft is connected with the control assembly through a bolt.

As shown in fig. 2 and 3, the control assembly includes a travel switch 71, a housing 72, and a waterproof joint 73, wherein the housing is screwed to a side of the pulling block away from the spindle, the waterproof joint is fixedly connected to the pulling block, the travel switch is disposed above the waterproof joint, and the travel switch is screwed to the housing.

As shown in fig. 4, a short shaft is arranged at the middle position of the top end of the pulling rotating block, a jack is arranged on the left side, and the main shaft is fixedly arranged in the jack.

The round hole with travel switch's gyro wheel looks adaptation has been seted up to the one end that the shell is close to the minor axis, manual switch is normally closed state at ordinary times, in the minor axis of turning the piece is emboliaed to the bottom of second crow bar, because the minor axis of turning the piece is less than the wall thickness of crow bar with the gyro wheel, the bottom of second crow bar sets up to the trapezoid of falling, so in the crow bar inserts the minor axis, travel switch's gyro wheel is compressed to certain stroke, the power of circuit is cut off, reach the safety of guaranteeing operating personnel, the design of such crow bar and travel switch integration, make the pulling process more convenient and with the crow bar change into the different applications of operating personnel in the operation process into, need operate through second crow bar part when the switch machine needs to cut off the power, when unable automatic change switch after the motor cuts off, can pull switch through the combination of first crow bar and second crow bar. The design cancels the adoption of a mode that a travel switch is outside by a complex safety contact, utilizes the insertion of a crowbar to cut off the power, plays a role in protecting the operation process, and simultaneously prevents severe weather and the geographical environment where the switch machine is located from influencing the operation by the design of the waterproof joint. One end of the main shaft is fixedly connected with one side of the pulling switch block, and the other side of the main shaft is connected with a manual operation mechanism in the switch machine, so that the defect of opening a machine cover of the traditional switch machine is completely avoided, and the targeted design completely meets the requirements of the buried switch machine. The main shaft of fig. 5 is internally provided with through holes, so that wires and cables can be split and classified to pass through the through holes, and the wiring is more neat. The invention has the advantages of simple and convenient use, safe and reliable performance, no need of opening the casing of the switch machine, no need of the operation of a maintainer to go into the underground tunnel of the underground switch machine, and direct pulling of the switch machine by sleeving the crow bar into the pulling switch block, thereby realizing the switch of the switch.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a buried point switch hand plate mechanism, its characterized in that, including pulling turning block and control assembly, pulling turning block top intermediate position department is provided with the minor axis, the peripheral grafting of minor axis is provided with the crowbar, one side key connection of pulling turning block along the horizontal direction has the main shaft, deviates from the fixed control assembly that is provided with in one side of main shaft, control assembly includes shell, travel switch, shell fixed connection is pulling the one end that the main shaft was kept away from to the turning block, travel switch fixed mounting is inside the shell, the round hole with travel switch's gyro wheel looks adaptation has been seted up to the one end that the shell is close to the minor axis, the crowbar includes first crowbar and second crowbar, the top of first crowbar is provided with the steel pipe, the top of second crowbar is provided with the screw rod, first crowbar and second crowbar threaded connection.

2. The embedded switch machine hand plate mechanism of claim 1, wherein the control assembly further comprises a waterproof joint located at the bottom of the interior of the housing and fixedly connected to the trigger block.

3. The novel hand plate mechanism of the underground switch machine according to claim 1, wherein the end of the pulling turning block, which is close to the main shaft, is provided with a jack which is matched with the main shaft, and the main shaft is fixedly arranged in the jack.

4. The novel buried switch machine hand plate mechanism of claim 1, wherein a through hole for wiring is formed in the main shaft.

5. The embedded switch machine hand plate mechanism of claim 1, wherein the crow bar is perpendicular to the main shaft.