CN219774531U

CN219774531U - Telescopic rod

Info

Publication number: CN219774531U
Application number: CN202320230192.XU
Authority: CN
Inventors: 陈聪俊
Original assignee: Dongguan Group Fu Plastic Product Co ltd
Current assignee: Dongguan Group Fu Plastic Product Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-09-29
Anticipated expiration: 2033-02-14

Abstract

The utility model relates to the field of telescopic rods, in particular to a telescopic rod, which comprises a plurality of sleeve parts and a plurality of locking limiting mechanisms; the sleeve parts are sequentially connected through the locking limiting mechanisms; the locking limiting mechanism comprises a fixing screw, an expansion nut and a second fixing sleeve; one end of the fixing screw is sleeved on the expansion nut; the second fixing sleeve is clamped at one end of the fixing screw, which is away from the expansion nut. The telescopic rod is simple in structure and convenient to operate.

Description

Telescopic rod

Technical Field

The utility model relates to the field of telescopic rods, in particular to a telescopic rod.

Background

In daily life and work, various rod tools with telescopic functions are frequently used, the rod body of the tool generally consists of a sleeve and an inner rod inserted into the sleeve, a locking device is arranged between the sleeve and the inner rod, after the overall length of the rod body is adjusted according to the needs, the outer sleeve and the inner rod can be fastened into a whole by screwing the locking device, and when the rod body needs to be retracted, the inner rod can be retracted into the sleeve by loosening the locking device.

At present, the locking and limiting mechanism of the telescopic rod is complex in structure and inconvenient to operate, and particularly in working occasions with a large number of telescopic rods, the progress and efficiency of work are affected.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the telescopic rod which is simple in structure and convenient to operate.

The utility model adopts the following technical scheme:

a telescopic rod comprises a plurality of sleeve parts and a plurality of locking limiting mechanisms; the plurality of sleeve parts are connected sequentially through the plurality of locking limiting mechanisms.

The technical scheme is further improved in that the sleeve part comprises a first sleeve, a second sleeve and a third sleeve, the number of the locking limiting mechanisms is two, and the first sleeve, the second sleeve and the third sleeve are connected through the two locking limiting mechanisms in sequence.

According to the technical scheme, one end of the third sleeve, which is away from the second sleeve, is clamped with the first fixing sleeve.

A locking and limiting mechanism comprises a fixed screw, an expansion nut and a second fixed sleeve; one end of the fixing screw is sleeved on the expansion nut; the second fixing sleeve is clamped at one end of the fixing screw, which is away from the expansion nut.

The fixing screw comprises a plug-in connection part, a threaded part connected to one side of the plug-in connection part, a connecting part connected to one end of the threaded part, and a clamping connector arranged at one end of the connecting part, wherein the diameter of the clamping connector is larger than that of the connecting part.

The technical scheme is further improved in that a limiting ring is arranged at the joint of the plug-in connection part and the threaded part.

According to the technical scheme, the expansion nut comprises an expansion part, the inside of the expansion part is hollow cylindrical, and one end of the expansion part is provided with a triangular groove.

According to the technical scheme, the expansion part comprises a first expansion claw, a second expansion claw and a third expansion claw, one side lower part of the first expansion claw is connected with the second expansion claw, one side lower part of the second expansion claw is connected with the third expansion claw, a notch is formed between the first expansion claw and the third expansion claw, and the notch extends from the upper end face of the expansion part to the lower end face of the expansion part.

The technical scheme is further improved in that the inner sides of the first expansion claw, the second expansion claw and the third expansion claw are respectively provided with internal threads matched with the threaded parts.

The technical scheme is further improved in that the center of the triangular groove is provided with a clamping hole matched with the clamping connector, and the diameter of the clamping hole is smaller than that of the clamping connector.

The beneficial effects of the utility model are as follows:

the utility model is provided with the fixing screw, the expansion nut and the second fixing sleeve, one end of the front pipe of the telescopic rod is connected with the inserting part of the fixing screw, the fixing screw is rotationally connected with the expansion nut, when the front pipe is rotated, the fixing screw drives the expansion nut, and the expansion nut tightens the rear pipe of the telescopic rod, thereby realizing the function of locking and limiting, and the telescopic rod has simple integral structure and convenient operation.

Drawings

FIG. 1 is an exploded view of a sleeve member, locking and limiting mechanism of the telescopic rod of the present utility model;

FIG. 2 is an exploded view of the second sleeve, third sleeve, locking and limiting mechanism of the telescoping rod of FIG. 1;

FIG. 3 is a cross-sectional view of the telescoping rod of FIG. 1 shown deployed;

FIG. 4 is a collapsed cross-sectional view of the telescoping rod of FIG. 1;

FIG. 5 is a schematic view of a locking mechanism of the present utility model;

FIG. 6 is a cross-sectional view of a set screw of the locking stop mechanism of FIG. 5;

FIG. 7 is a schematic view of the expansion nut of the locking and spacing mechanism of the present utility model;

fig. 8 is a top view of the expansion nut of the locking stop mechanism of fig. 7.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, 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 utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, a telescopic rod comprises a plurality of sleeve members 10 and a plurality of locking and limiting mechanisms (not shown in the drawings); the plurality of sleeve members 10 are connected in sequence by a plurality of locking and limiting mechanisms (not shown).

Further, the sleeve member 10 includes a first sleeve 11, a second sleeve 12, and a third sleeve 13, the number of the locking limiting mechanisms (not shown in the figure) is two, and the first sleeve 11, the second sleeve 12, and the third sleeve 13 are sequentially connected through the two locking limiting mechanisms (not shown in the figure).

Further, a first fixing sleeve 20 is clamped at one end of the third sleeve 13 away from the second sleeve 12.

As shown in fig. 1 to 8, a locking and limiting mechanism comprises a fixing screw 30, an expansion nut 40 and a second fixing sleeve 50; one end of the fixing screw 30 is sleeved on the expansion nut 40; the second fixing sleeve 50 is clamped to one end of the fixing screw 30 away from the expansion nut 40.

Further, the fixing screw 30 includes a socket portion 31, a threaded portion 32 connected to one side of the socket portion 31, a connection portion 33 connected to one end of the threaded portion 32, and a clamping head 34 provided at one end of the connection portion 33, wherein the diameter of the clamping head 34 is larger than the diameter of the connection portion 33. The plug-in portion 31 is connected to the front pipe of the telescopic rod, and the screw portion 32, the connecting portion 33, and the clip 34 are provided inside the rear pipe, and the first fixing sleeve 20 is connected to the rear pipe.

Further, a limiting ring 35 is disposed at the connection between the plugging portion 31 and the threaded portion 32.

Further, the expansion nut 40 includes an expansion portion 60, the interior of the expansion portion 60 is hollow cylindrical, and one end of the expansion portion 60 is provided with a triangular groove 61.

Further, the expansion part 60 includes a first expansion claw 62, a second expansion claw 63, and a third expansion claw 64, wherein one side lower part of the first expansion claw 62 is connected to the second expansion claw 63, one side lower part of the second expansion claw 63 is connected to the third expansion claw 64, a gap 65 is formed between the first expansion claw 62 and the third expansion claw 64, and the gap 65 extends from an upper end surface of the expansion part 60 to a lower end surface of the expansion part 60.

Further, the inner sides of the first expansion claw 62, the second expansion claw 63 and the third expansion claw 64 are respectively provided with internal threads which are matched with the threaded portion 32.

Further, a clamping hole 66 matched with the clamping connector 34 is formed in the center of the triangular groove 61, and the diameter of the clamping hole 66 is smaller than that of the clamping connector 34.

The utility model is provided with the fixing screw 30, the expansion nut 40 and the second fixing sleeve 50, one end of the front pipe of the telescopic rod is connected with the inserting part 31 of the fixing screw 30, the fixing screw 30 is rotationally connected with the expansion nut 40, when the front pipe is rotated, the fixing screw 30 drives the expansion nut 40, and the expansion nut 40 tightens the rear pipe of the telescopic rod, thereby realizing the function of locking and limiting.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The telescopic rod is characterized by comprising a plurality of sleeve parts and a plurality of locking limiting mechanisms; the sleeve parts are sequentially connected through the locking limiting mechanisms;

the locking limiting mechanism comprises a fixing screw, an expansion nut and a second fixing sleeve; one end of the fixing screw is sleeved on the expansion nut; the second fixing sleeve is clamped at one end of the fixing screw, which is away from the expansion nut.

2. The telescopic rod according to claim 1, wherein the sleeve member comprises a first sleeve, a second sleeve and a third sleeve, the number of the locking limiting mechanisms is two, and the first sleeve, the second sleeve and the third sleeve are sequentially connected through the two locking limiting mechanisms.

3. The telescopic rod of claim 2, wherein a first fixed sleeve is clamped at an end of the third sleeve facing away from the second sleeve.

4. The telescopic rod according to claim 1, wherein the fixing screw comprises a plug-in portion, a threaded portion connected to one side of the plug-in portion, a connecting portion connected to one end of the threaded portion, and a clamping head arranged at one end of the connecting portion, and the diameter of the clamping head is larger than that of the connecting portion.

5. The telescopic link of claim 4, wherein a stop collar is provided at the junction of the spigot portion and the threaded portion.

6. The telescopic rod according to claim 1, wherein the expansion nut comprises an expansion part, the interior of the expansion part is hollow cylindrical, and one end of the expansion part is provided with a triangular groove.

7. The telescopic link according to claim 6, wherein the expansion portion includes a first expansion claw, a second expansion claw, and a third expansion claw, one side lower portion of the first expansion claw is connected to the second expansion claw, one side lower portion of the second expansion claw is connected to the third expansion claw, a gap is formed between the first expansion claw and the third expansion claw, and the gap extends from an upper end face of the expansion portion to a lower end face of the expansion portion.

8. The telescopic link according to claim 7, wherein the inner sides of the first expansion jaw, the second expansion jaw and the third expansion jaw are provided with internal threads which are matched with the threaded portions.

9. The telescopic link according to claim 6, wherein the triangular groove is provided with a clamping hole at the center thereof, the clamping hole having a smaller diameter than the clamping hole.