CN217673182U

CN217673182U - Operating handle structure capable of self-locking

Info

Publication number: CN217673182U
Application number: CN202122760011.8U
Authority: CN
Inventors: 王新中; 詹永鹏; 王洋
Original assignee: Guizhou Xinan Aviation Machinery Co Ltd
Current assignee: Guizhou Xinan Aviation Machinery Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-10-28
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a self-locking control handle structure, which comprises a T-shaped handle, a pull rod, a fixed sleeve component and a self-locking structure, wherein one end of the pull rod is connected with the T-shaped handle, the other end of the pull rod passes through the fixed sleeve component to be connected with a steel cable or a hydraulic valve, and a cylindrical pin is arranged in the middle of the pull rod; the fixing sleeve assembly comprises an upper fixing sleeve and a lower fixing sleeve, and the upper fixing sleeve and the lower fixing sleeve can be connected together through countersunk screws; an end cover is arranged at the upper end of the upper fixing sleeve. The utility model discloses a can realize having self-locking function to specific aircraft at work and non-operating condition.

Description

Operating handle structure capable of self-locking

Technical Field

The utility model relates to an emergent operating system technical field especially relates to an operating handle structure that can auto-lock.

Background

The typical control form of the airplane emergency operation system in China is a mechanical emergency operation system and an electric control emergency brake system, and the two types of the emergency operation system and the electric control emergency brake system are different. The typical electric control emergency brake is controlled by a brake pedal through sending an instruction; a typical mechanical emergency control system controls an emergency valve to implement emergency control by pulling a steel cable through a cockpit handle, and the mechanical emergency control system can ensure high requirements on system reliability and low cost for the design of an aircraft emergency system. The mechanical manipulation can implement manipulation actions according to manipulation experiences, and the ergonomic design is realized.

At present, the mechanical emergency operation structure in China is a manual operation push-pull type, and the main difference lies in that the operation form and the structure of an operation end are different, but the prior handle structure has certain defects:

(1) Although the structure of the push-pull operating handle has a small idle stroke, the operating force is small during emergency braking;

(2) Although the rotary push-pull structure has large brake operating force, emergency operation can be realized after a driver completes push-pull and rotation actions.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a control handle structure that can be self-locked, which can realize self-locking function for specific aircrafts at working and non-working states.

The purpose of the utility model is realized by adopting the following technical scheme:

a self-locking operating handle structure comprises a handle, a pull rod, a fixed sleeve component and a self-locking structure,

one end of the pull rod is connected with the handle, the other end of the pull rod penetrates through the fixed sleeve assembly to be connected with the steel cable or the hydraulic valve, and a cylindrical pin is arranged in the middle of the pull rod;

the fixing sleeve assembly comprises an upper fixing sleeve and a lower fixing sleeve, and the upper fixing sleeve and the lower fixing sleeve are connected and fixed into a whole;

an end cover is arranged at the upper end of the upper fixed sleeve;

the self-locking structure is arranged in the upper fixing sleeve and comprises a first steel ball, a plug screw, a push rod, a spring seat and a second steel ball, the first steel ball is arranged in the plug screw, the plug screw is fixedly connected with the upper fixing sleeve, the spring is arranged between the push rod and the spring seat, and the second steel ball is arranged between the spring seat and the cylindrical pin.

Furthermore, the handle is a T-shaped handle and is riveted with the pull rod into a whole through a countersunk head rivet.

Furthermore, two holes are formed in the pull rod, and the countersunk rivets are arranged in the holes of the pull rod to rivet the T-shaped handle into a whole.

Furthermore, two symmetrical fan-shaped grooves are formed in the upper end and the lower end of the upper fixing sleeve along the axial direction, two through holes are formed in the upper fixing sleeve along the inner side of the axial direction, the bottom of each through hole is a V-shaped hole, and the two through holes are respectively communicated with the fan-shaped grooves in the upper end and the lower end of the fixing sleeve.

Furthermore, a straight through hole of the cylindrical pin is formed in the upper fixing sleeve, and the straight through hole is perpendicular to a connecting line of the two through holes.

Further, the fan-shaped grooves are symmetrically arranged.

Furthermore, the self-locking mechanisms are arranged into two groups which are bilaterally symmetrical.

Furthermore, the upper fixing sleeve and the lower fixing sleeve are connected together through a countersunk head screw after being involuted.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model discloses a control handle structure, non-operating condition under the spring force effect, forms locking state with the cylindric lock card between second steel ball and lower fixed cover. When the rotating force is applied, the operating rotating force is larger than the elastic force of the spring, the cylindrical pin moves the steel ball axially towards the groove, the elastic force of the spring increases along with the rotation of the cylindrical pin, and the elastic force of the spring decreases along with the increase of the elastic force of the spring after the maximum rotating force is reached; under the working state, the spring rotates clockwise or anticlockwise, the elastic force of the spring increases along with the rotation of the cylindrical pin, and the elastic force of the spring decreases along with the rotation of the cylindrical pin after the maximum rotating force is reached. Adopt the spring structure of two sets of symmetries promptly, can be effective even rotation, can not have the jamming or power inhomogeneous phenomenon, consequently this structure can reach the beneficial effect of emergent operating system idle stroke under the prerequisite that satisfies driver's operating force requirement.

(2) The operating handle assembly can be connected with the valve body or the steel cable, and after the connecting, the inside of the operating handle assembly is in a closed state, which is beneficial to preventing from being influenced by external environment, such as: sand dust, acidic atmospheric environment and the like, and the closed state can improve the corrosivity of the structure and prolong the service life of the structure.

(3) The structure can prevent misoperation, and can realize stability and accuracy during use. When the structure is designed, the locking state can be stably released by manual rotation when the locking state is released by considering the design of man-machine engineering.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a front view of the self-locking operating handle structure of the present invention;

FIG. 2 is a back view of the self-locking operating handle structure of the present invention;

FIG. 3 is a three-dimensional view of the self-locking operating handle structure of the present invention;

FIG. 4 is a partial three-dimensional schematic view of the self-locking fixing sleeve on the control handle of the present invention;

FIG. 5 is a bottom view of the self-locking lever assembly of the present invention;

FIG. 6 is a schematic structural view of the self-locking operating handle in a non-operating state;

FIG. 7 is a schematic structural view of the self-locking operating handle of the present invention;

fig. 8 is a three-dimensional schematic view of a part of the lower fixing sleeve of the self-locking control handle of the present invention.

In the figure: the steel ball type hydraulic wrench comprises a handle 1, an end cover 2, a first steel ball 3, a plug screw 4, a push rod 5, a spring 6, a spring seat 7, a second steel ball 8, a cylindrical pin 9, a countersunk rivet 10, a countersunk screw 11, an upper fixing sleeve 12, a lower fixing sleeve 13, a pull rod 14, a through hole 15, a fan-shaped groove 16 and a V-shaped hole 17.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1, 2 and 3, the self-locking operating handle structure comprises a fixed sleeve assembly, a handle 1, an end cover 2, a first steel ball 3, a plug screw 4, a push rod 5, a spring 6, a spring seat 7, a second steel ball 8, a cylindrical pin 9, a countersunk rivet 10, a countersunk screw 11, an upper fixed sleeve 12, a lower fixed sleeve 13 and a pull rod 14, wherein the fixed sleeve assembly comprises the upper fixed sleeve 12 shown in fig. 3 and the lower fixed sleeve 13 shown in fig. 7, and the operating handle 1 is a T-shaped handle; the fixed sleeve assembly is internally provided with parts such as a screw plug 4, a push rod 5, a spring 6, a spring seat 7, a cylindrical pin 9, two first steel balls 3, two second steel balls 8 and the like, after the position of the screw plug 4 and the upper fixed sleeve 12 is well adjusted, the screw plug 4 and the upper fixed sleeve 12 are fastened through threads, and the position of the screw plug 4 is fixed in the whole operation process; the T-shaped handle 1 and the pull rod 14 are riveted into a whole through a countersunk rivet 11; the pull rod 14 is provided with two holes for accommodating the countersunk rivet 11 and the cylindrical pin 9 respectively. The upper end and the lower end of the upper fixing sleeve 12 are provided with two symmetrical fan-shaped grooves 16 along the axial direction, the inner side of the upper fixing sleeve 12 along the axial direction is provided with two through holes 15, the bottom of each through hole 15 is a V-shaped hole 17, and the two through holes 15 are respectively communicated with the fan-shaped grooves 16 at the upper end and the lower end of the upper fixing sleeve 12; in order to better fix the position of the upper and lower fixed sleeves in a limiting way, the side face of the lower fixed sleeve 13 is provided with a hexagonal boss which is matched with a torque wrench to further fix the position of the lower fixed sleeve, and the fixed sleeve is prevented from rotating along with the handle 1.

The working process is as follows: as shown in FIG. 6, the locking device is in a non-working state, and the cylindrical pin is clamped between the steel ball and the sector groove under the action of the elastic force of the spring to form a locking state. When a rotating force is applied clockwise, the spring is compressed upwards, the cylindrical pin moves the steel ball axially towards the groove because the operating rotating force is larger than the elastic force of the spring, the elastic force of the spring increases along with the rotation of the cylindrical pin, and the elastic force of the spring decreases along with the increase of the elastic force after the maximum rotating force is reached; the T-shaped handle 1 is rotated to the limit position, pulled axially and then rotated anticlockwise to the limit position, and locking is achieved. As shown in fig. 7, in the working state, after the locking state is released, the T-shaped handle can be pulled up to the upper end fan-shaped groove of the upper fixing sleeve, and the upper fixing sleeve is ensured not to be pulled out due to the matching limit of the limit pin 9 and the end cover 2; when the locking mechanism rotates clockwise, the spring is compressed downwards, the elasticity of the spring increases along with the rotation of the cylindrical pin, the elasticity of the spring decreases along with the increase of the elasticity of the spring after the maximum rotating force is reached, and the spring pushes the spring to rotate anticlockwise to the limit position in the axial direction so as to realize locking. This completes one cycle of action.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a manipulation handle structure that can auto-lock, includes handle (1), pull rod (14), fixed cover subassembly, auto-lock structure, its characterized in that:

one end of the pull rod (14) is connected with the handle (1), the other end of the pull rod penetrates through the fixed sleeve component to be connected with the steel cable or the hydraulic valve, and a cylindrical pin (9) is arranged in the middle of the pull rod (14);

the fixing sleeve component comprises an upper fixing sleeve (12) and a lower fixing sleeve (13), and the upper fixing sleeve (12) is connected with the lower fixing sleeve (13);

the upper end of the upper fixing sleeve (12) is also provided with an end cover (2);

the self-locking structure, the self-locking structure set up in go up in fixed cover (12), the self-locking structure includes first steel ball (3), plug screw (4), push rod (5), spring (6), spring holder (7), second steel ball (8), first steel ball (3) set up in plug screw (4), plug screw (4) with go up fixed cover (12) fixed connection, spring (6) set up between push rod (5) and spring holder (7), second steel ball (8) set up in between spring holder (7) and cylindric lock (9).

2. The self-lockable bar handle structure of claim 1, wherein: two symmetrical fan-shaped grooves (16) are formed in the upper end and the lower end of the upper fixing sleeve (12) along the axial direction, two through holes (15) are formed in the upper fixing sleeve (12) along the inner side of the axial direction, the hole bottoms of the through holes (15) are V-shaped holes (17), and the two through holes (15) are respectively communicated with the fan-shaped grooves (16) at the upper end and the lower end of the fixing sleeve (12).

3. The self-lockable bar handle structure of claim 2, wherein: a straight through hole of the cylindrical pin (9) is formed in the upper fixing sleeve (12) and is perpendicular to the connecting line of the two through holes (15).

4. The self-lockable bar handle structure of claim 2, wherein: the fan-shaped grooves (16) are symmetrically arranged.

5. The self-lockable bar handle structure of claim 2, wherein: two through holes (15) are symmetrically arranged along the upper fixing sleeve, and two groups of self-locking mechanisms are correspondingly arranged in the through holes (15) of the upper fixing sleeve.

6. A handle structure capable of self-locking according to claim 1, wherein: the handle (1) is a T-shaped handle and is riveted with the pull rod (14) into a whole through a countersunk rivet (10).

7. The self-lockable bar handle structure of claim 6, wherein: the pull rod (14) is provided with two holes, and the countersunk head rivet (10) is arranged in the hole of the pull rod (14) and rivets the T-shaped handle into a whole.

8. The self-lockable bar handle structure of claim 1, wherein: the upper fixing sleeve (12) and the lower fixing sleeve (13) are connected together through countersunk head screws after being involuted.