CN216943508U

CN216943508U - Telescopic handle

Info

Publication number: CN216943508U
Application number: CN202220489645.6U
Authority: CN
Inventors: 丁树栋; 夏少华; 赵召磊; 贺定芳
Original assignee: Ningbo Haibo Group Co ltd
Current assignee: Ningbo Haibo Group Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-12
Anticipated expiration: 2032-03-08

Abstract

The utility model relates to a telescopic handle, improve on the basis of existing handle bar and handle tube, namely the said handle bar is hollow, install locating sleeve and operating part that can stretch into the handle bar on the handle tube, extend a plurality of elastic sheets that distribute circumferentially at intervals axially on one end of the locating sleeve, the inner wall of each elastic sheet becomes the conical surface and encloses a conical hole together, install the locating piece that can move axially by the drive of operating part in the locating sleeve, the periphery of the locating piece has outer conical surface cooperating with conical hole, when the locating piece locates in conical hole and is in the locked state with the inner wall of the conical hole is supported tightly, the outer wall of each elastic sheet is supported tightly with the inner wall of the handle bar; when the outer peripheral surface of the positioning block is separated from the inner wall surface of the elastic sheet and is in an unlocking state, the outer wall surface of the elastic sheet is also separated from the inner wall surface of the handle rod. By adopting the structure, the handle pipe can be reliably positioned in a required state at any time, and the positioning is more reliable.

Description

Telescopic handle

Technical Field

The utility model relates to a telescopic handle, in particular to a telescopic handle mainly used on a marine propeller.

Background

A propeller is a power device for assisting a ship body to travel, and forward, backward, or steering of the ship body needs to be operated by means of a handle (also referred to as a handle assembly) on the propeller. In order to facilitate the operation, the handle is usually designed to be a telescopic structure and comprises a handle rod (also called a fixed rod) and a handle pipe (also called a movable rod), wherein the handle pipe can axially move relative to the handle rod, so that the purposes of convenient storage and use can be achieved. Such a structure is disclosed in chinese patent application publication No. CN 103921926A. And in order to enable the handle pipe to be positioned relative to the handle rod in the telescopic process, positioning grooves are formed in one of the contact surfaces of the handle pipe and the handle rod, the contact surfaces are axially distributed at intervals, a radial groove is formed in the other contact surface, a ball head pin and a spring are installed in the radial groove, one end of the spring abuts against the bottom of the radial groove, and the other end of the spring abuts against the ball head pin, so that the ball head pin always has the tendency of falling into the positioning grooves. So when pulling handle pipe, when the bulb corresponds the constant head tank, the bulb just can fall into the constant head tank under the effect of spring to play the effect of location. If the force is continuously applied to the handle pipe, the handle pipe can be continuously moved by overcoming the acting force of the spring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art and provides a telescopic handle which can reliably position a handle pipe in a required state at any time.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a telescopic handle, is including handle pole and the cover on handle pole and can be for the handle pipe of handle pole axial displacement, its characterized in that: the handle rod is hollow, a positioning sleeve and an operating part which can extend into the handle rod are installed on the handle pipe, a plurality of elastic sheets which are distributed at intervals along the circumferential direction axially extend from one end face of the positioning sleeve, the inner wall faces of the elastic sheets form conical surfaces to jointly enclose a conical hole, a positioning block which is driven by the operating part to move axially is installed in the positioning sleeve, the periphery of the positioning block is provided with an outer conical surface matched with the conical hole, and when the positioning block is located in the conical hole and is abutted against the inner wall of the conical hole to be in a locking state, the outer wall face of each elastic sheet is abutted against the inner wall of the handle rod; when the outer peripheral surface of the positioning block is separated from the inner wall surface of the elastic sheet and is in an unlocking state, the outer wall surface of the elastic sheet is also separated from the inner wall surface of the handle rod.

In the above aspect, preferably, the positioning sleeve is fixed to one end of a sleeve, the sleeve is inserted into the handle rod, and the other end of the sleeve is fixed to the handle pipe through a fixing seat, and the sleeve, the fixing seat and the handle pipe form a handle pipe assembly. Through setting up fixing base and sleeve pipe, make whole atress even, simple to operate. If necessary, the side wall of the handle rod can also be provided with an axial long hole, and the handle pipe is connected with the positioning sleeve through a connecting strip capable of moving in the axial long hole, so that the handle pipe and the positioning sleeve can move together.

In order to facilitate the installation of the operating part, the fixed seat is provided with an axial through hole, the operating part comprises a connecting rod, a spring and a button which is arranged in the through hole in a sliding manner, the connecting rod can be movably positioned in the sleeve, one end of the connecting rod is fixedly provided with the positioning block, the other end of the connecting rod is connected with the button, and the spring acts on the button or the connecting rod, so that the button always has the tendency of driving the connecting rod and the positioning block to move and be in a locking state. Therefore, force can be conveniently applied to the button, and assembly is facilitated.

Preferably, the spring is a pressure spring, one end of the pressure spring is arranged on the spring seat, the other end of the pressure spring is abutted to the button, and the spring seat is fixed with the handle pipe assembly. Of course, a tension spring arrangement may be used.

In order to improve the friction force, the outer wall of each elastic sheet is provided with a groove extending along the circumferential direction, and an elastic ring is sleeved in the groove.

In the above embodiments, in order to provide a constant damping force when the handle pipe moves, a first flange positioned in the handle pipe is fixed to one end opening of the handle rod, and a first seal ring is provided on a contact surface between an outer peripheral surface of the first flange and an inner wall surface of the handle pipe. The other end of the handle pipe is also fixed with a second flange sleeved on the handle rod, and a second sealing ring is arranged on a contact surface between the inner wall surface of the second flange and the outer peripheral surface of the handle rod. Thus, the first flange and the second flange are mutually matched, and the handle pipe can be prevented from being excessively pulled outwards.

In order to facilitate installation, the handle rod exposed out of the handle pipe is sleeved with an installation seat, and the installation seat is provided with an installation hole.

Preferably, a third sealing ring is arranged on a contact surface between the inner wall of the mounting seat and the handle rod so as to improve the damping force during rotation.

Compared with the prior art, the utility model is additionally provided with the positioning block and the positioning sleeve, and the outer conical surface on the positioning block is matched with the conical hole formed by each elastic sheet on the positioning sleeve, so that each elastic sheet can be opened or reset when the positioning block is driven by the operating element to move axially, and after each elastic sheet is opened, the positioning sleeve can be tightly abutted against the handle rod to prevent the handle pipe from moving; after the elastic pieces are reset, the handle pipe can move smoothly, so that the handle pipe can be locked relative to the handle rod or moved relative to the handle rod, the positioning can be carried out at any time according to requirements, and the positioning is more reliable.

Drawings

FIG. 1 is a schematic perspective view of a speed control switch for a propeller according to an embodiment of the present invention;

FIG. 2 is a perspective view of FIG. 1 in another orientation;

FIG. 3 is an exploded perspective view of FIG. 2 (with the speed switch and connector removed);

fig. 4 is a schematic cross-sectional view of fig. 1 (with the speed switch and connector removed).

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

The telescopic handle shown in fig. 1 and 2 is applied to a propeller for a ship, a speed regulating switch is installed in a head housing of the propeller, and a front end of the telescopic handle is connected with an operating part of the speed regulating switch 200 through a connector 100, which is a prior art and will not be described in detail herein.

The main improvement in this embodiment lies in a telescopic handle, which includes a handle tube 1, a handle rod 2, a positioning sleeve 3 and a positioning block 4, wherein the handle tube 1 is sleeved on the handle rod 2 and can move axially relative to the handle rod 2, so as to achieve the telescopic function of the handle. The handle lever 2 is designed as a hollow structure. The positioning sleeve 3 can extend into the hollow handle bar 2, the positioning sleeve 3 can be fixed with the handle bar 1, that is, the positioning sleeve 3 can move with the handle bar 1, and the fixing manner with the handle bar 1 can be varied, in this embodiment, preferably, the positioning sleeve 3 is fixed with the handle bar 1 through a sleeve 5 and a fixing seat 6, specifically, referring to fig. 3 and 4, the positioning sleeve 3 is fixed at the left end of the sleeve 5, the sleeve 5 is inserted into the handle bar 2, the other end (that is, the right end) of the sleeve 5 is provided with an outward flange 51, the fixing seat 6 is fixed on the operation end of the handle bar 1 through a radial pin a, the fixing seat 6 is provided with an axial through hole 61, the inner wall of the through hole 61 is provided with a step, that is a stepped hole, the sleeve 5 is inserted into the handle bar 2, the outward flange 51 is placed on the step, and is axially limited by a retaining ring b, thus, the positioning sleeve 3, the sleeve 5, the fixed seat 6 and the handle pipe 1 are connected into a whole to form the handle pipe component.

A plurality of elastic pieces 31 axially extend from one end surface of the positioning sleeve 3 and are circumferentially distributed at intervals, in fig. 4, the end surface is a left end surface of the positioning sleeve 3, and inner wall surfaces of the elastic pieces 31 form a conical surface to jointly enclose a conical hole. Each elastic piece 31 can be opened outward by the external force, and each elastic piece 1 is restored to the natural state as shown in fig. 3 by the self-restoring force when the external force is removed.

The locating block 4 is arranged in the locating sleeve 3, the locating block 4 can be driven by the operating element 7 to move axially, the operating element 7 can move along with the handle pipe 1, the periphery of the locating block 4 is provided with an outer conical surface 41 matched with the conical hole, when the locating block 4 is positioned in the conical hole and is abutted against the inner wall of the conical hole in the axial moving process of the locating block 4, each elastic sheet 31 is pushed to be opened, the outer wall surface of each elastic sheet 31 is abutted against the inner wall of the handle rod 2, namely, the locating block is in a locking state, in order to improve the friction force, a groove extending along the circumferential direction is arranged on the outer wall of each elastic sheet 31, an elastic ring 32 is sleeved in the groove, the elastic ring can adopt an O-shaped ring, on one hand, each elastic sheet 31 can be reset quickly, on the other hand, when the elastic ring 32 is contacted with the inner wall of the handle rod 2, the resistance can be increased, the inner wall of the handle bar 2 is prevented from being worn and the noise is reduced. When the outer peripheral surface of the positioning block 4 is separated from the inner wall surface of the elastic piece 31, the elastic pieces 31 are restored to the natural state, at this time, the outer wall surface of the elastic piece 31 is also separated from the inner wall surface of the handle bar 2, and at this time, the handle tube assembly and the handle bar 2 are in the unlocked state.

In order to facilitate driving of the positioning block 4, in the present embodiment, the operating member 7 can extend into the handle bar 2, and includes a link 71, a spring 72 and a button 73 slidably disposed in the through hole 61 of the fixing base 6, the link 71 can be movably disposed in the sleeve 5, one end (i.e. the left end in fig. 4) of the link 71 is fixed with the positioning block 4, the other end (i.e. the right end in fig. 4) of the link 71 is connected with the button 73, in order to facilitate adjusting the hand feeling of the button 73, the button 73 and the link 71 are in threaded connection, the spring 72 acts on the button 73 or the link 71, so that the button 73 always has a tendency of driving the link 71 and the positioning block 4 to move and be in a locked state, as can be seen from fig. 4, the spring 72 is a compression spring, the left end of the compression spring abuts against a spring seat 74, the right end of the spring seat abuts against the button 73, and the spring seat 74 is fixed with the handle bar assembly, specifically, the spring seat 74 is also made in the form of a sleeve, and the mouth of the sleeve is also designed with a flange, which can be placed between the flange 51 of the sleeve 5 and the retaining ring b, so that the assembly is very convenient.

In order to provide a certain damping force during the movement of the handle pipe 1, a first flange 8a positioned inside the handle pipe 1 is fixed to the right end opening of the handle lever 2, and a first seal ring 9a is provided on the contact surface between the outer peripheral surface of the first flange and the inner wall surface of the handle pipe 1. The first seal ring 9a is attached to the first flange 8a in the drawing, similarly, a second flange 8b fitted over the handle bar 2 is fixed to the other end (i.e., the left end in fig. 4) of the handle pipe 1, a second seal ring 9b is provided on a contact surface between the inner wall surface of the second flange 8b and the outer peripheral surface of the handle bar 2, and the second seal ring 9b is attached to the second flange 8b in the drawing. The handle pipe 1 is prevented from moving excessively leftward by the engagement of the first flange 8a with the fixing base 6, and the handle pipe 1 is prevented from moving excessively rightward by the engagement of the second flange 8b with the first flange 8 a.

In order to facilitate the installation of the telescopic handle, an installation seat 10 is sleeved on the handle rod 2 exposed out of the handle tube 1, in the figure, the installation seat is positioned at the left end of the handle rod 2, two installation holes are formed in the installation seat 10, the installation seat 10 can be fixed at the corresponding position of the head shell of the propeller by utilizing the installation holes, and the two sides of the installation seat are axially limited by using retaining rings b.

A third sealing ring 9c is also provided on the inner wall of the mounting seat 10 and the contact surface between the handle bar 2 to increase the damping force during rotation, the third sealing ring 9c being shown mounted on the mounting seat 10.

The positioning of the first flange 8a and the second flange 8b can also be achieved by means of radial pins a, although other fixing means can be used.

As shown in fig. 4, when the length of the handle needs to be increased, the button 73 is pressed leftward, the spring 72 is compressed, the link 71 is pushed leftward, the link 71 drives the positioning block 4 to move leftward, the outer circumferential surface of the positioning block 4 is separated from the inner wall surface of the elastic piece 31, each elastic piece 31 is restored to a natural state under the action of self-restoring force, the outer wall surface is separated from the handle rod 2, the elastic pieces 31 and the elastic ring 32 are separated from the handle rod 2, and then the fixing seat 6 is pulled, so that the handle tube 1, the sleeve 5, the positioning sleeve 3, the button 73, the link 71 and the positioning block 4 can be driven to move freely rightward or leftward axially without being subjected to the resistance of the handle tube 1 to each elastic piece 31, so as to increase or shorten the length of the telescopic handle.

When the telescopic handle moves to a required length, the button 73 is loosened, at the moment, under the action of the restoring force of the spring 72, the button 73 is pushed to move rightwards, the sleeve 5 and the positioning block 4 are driven to move rightwards, at the moment, the outer conical surface on the positioning block 4 pushes the elastic pieces 31 to be opened, the outer wall surfaces of the elastic pieces 31 and the elastic rings 32 are tightly abutted to the inner wall of the handle rod 2, the handle rod 2 is connected with the handle pipe 1 into a whole through the positioning sleeve 3, the sleeve 5, the fixed seat 6 and the handle pipe 1, at the moment, the fixed seat 6 is rotated, the telescopic handle can rotate relative to the mounting seat 10, and the operating part of the speed regulating switch 200 is driven to rotate through the connector 100, so that the purpose of speed regulation is achieved. In this process, the third seal ring 9c can increase the damping force during rotation to improve the feel during rotation.

Claims

1. The utility model provides a telescopic handle, is including handle pole and the cover on handle pole and can be for the handle pipe of handle pole axial displacement, its characterized in that: the handle rod is hollow, a positioning sleeve and an operating part which can extend into the handle rod are installed on the handle pipe, a plurality of elastic sheets which are distributed at intervals along the circumferential direction axially extend from one end face of the positioning sleeve, the inner wall faces of the elastic sheets form conical surfaces to jointly enclose a conical hole, a positioning block which is driven by the operating part to move axially is installed in the positioning sleeve, the periphery of the positioning block is provided with an outer conical surface matched with the conical hole, and when the positioning block is located in the conical hole and is abutted against the inner wall of the conical hole to be in a locking state, the outer wall face of each elastic sheet is abutted against the inner wall of the handle rod; when the outer peripheral surface of the positioning block is separated from the inner wall surface of the elastic sheet and is in an unlocking state, the outer wall surface of the elastic sheet is also separated from the inner wall surface of the handle rod.

2. The telescoping handle as set forth in claim 1, wherein: the locating sleeve is fixed at one end of a sleeve, the sleeve is inserted into the handle rod, the other end of the sleeve is fixed with the handle pipe through a fixed seat, and the sleeve, the fixed seat and the handle pipe form a handle pipe assembly.

3. The telescoping handle as set forth in claim 2, wherein: the fixing seat is provided with an axial through hole, the operating part comprises a connecting rod, a spring and a button which is arranged in the through hole in a sliding manner, the connecting rod can be movably positioned in the sleeve, one end of the connecting rod is fixedly provided with the positioning block, the other end of the connecting rod is connected with the button, and the spring acts on the button or the connecting rod to enable the button to always have the tendency of driving the connecting rod and the positioning block to move so as to be in a locking state.

4. The telescoping handle of claim 3, wherein: the spring is a pressure spring, one end of the pressure spring is arranged on the spring seat, the other end of the pressure spring is abutted to the button, and the spring seat is fixed with the handle pipe assembly.

5. The telescoping handle as in any one of claims 1-4, wherein: the outer wall of each elastic sheet is provided with a groove extending along the circumferential direction, and an elastic ring is sleeved in the groove.

6. The telescopic handle according to any one of claims 1 to 4, wherein: a first flange positioned in the handle pipe is fixed at one port of the handle rod, and a first sealing ring is arranged on a contact surface between the outer peripheral surface of the first flange and the inner wall surface of the handle pipe.

7. The telescoping handle of claim 6, wherein: and a second flange sleeved on the handle rod is fixed at the other end of the handle pipe, and a second sealing ring is arranged on a contact surface between the inner wall surface of the second flange and the outer peripheral surface of the handle rod.

8. The telescopic handle according to any one of claims 1 to 4, wherein: the handle rod exposed out of the handle pipe is sleeved with a mounting seat, and the mounting seat is provided with a mounting hole.

9. The telescoping handle of claim 8, wherein: and a third sealing ring is arranged on the inner wall of the mounting seat and on the contact surface between the handle bars.