CN203542456U

CN203542456U - Telescopic socket spanner

Info

Publication number: CN203542456U
Application number: CN201320750709.4U
Authority: CN
Inventors: 林群富
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2014-04-16
Anticipated expiration: 2023-11-14

Abstract

The utility model relates to a telescopic socket spanner. The telescopic socket spanner comprises a handle, a connecting rod, a spring, a telescopic rod, a chamfer, a socket head, a rotating rod, a screw rod and a threaded through hole, wherein one end of the connecting rod is perpendicularly and fixedly connected to the middle of the handle, the threaded through hole is formed in the middle of the handle, the spring and the telescopic rod are arranged in the connecting rod, one end of the spring is perpendicularly and fixedly connected to the middle of the handle, and the other end of the spring is fixedly connected with the top of the telescopic rod. The telescopic socket spanner is simple in structure, convenient to use and capable of adjusting the length of the connecting rod of the socket spanner within a large range, and therefore bolts or nuts located in different depth positions can be detached and fastened, the number of the socket spanners needing to be carried by personnel is effectively reduced, using cost is reduced, labor intensity of the personnel can be reduced, and working efficiency can be improved easily.

Description

A kind of extension type box spanner

Technical field

The utility model relates to a kind of spanner, and specifically a kind of extension type box spanner, belongs to machine tool technical field.

Background technology

Box spanner is comprised of multiple members such as a plurality of sleeves with hexagon ring or 12 jiaos of holes and handle and connecting rods, be specially adapted to dismounting and fastening space of living in is very narrow or cave in very bolt or the nut of depths.

In machine work, often need to use box spanner to dismantle with fastening bolt or nut.In producing and living, the length of widely used box spanner connecting rod is generally all fixed at present, cannot dismantle and fastening bolt or nut in different depth position, the box spanner that often needs personnel to carry multiple different length specification just can complete dismounting and fastening bolt in different depth position or the task of nut, so not only increase use cost, and increase personnel's labour intensity, be unfavorable for increasing work efficiency.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of simple in structure, easy to use, and the adjustable extension type box spanner of length of connecting rod.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of extension type box spanner, comprise handle, connecting rod, spring, expansion link, chamfering, collet head, swingle, screw rod, tapped through hole, one end of described connecting rod is fixedly connected with the middle part of handle is vertical, the middle part of handle is provided with tapped through hole, the inside of connecting rod is provided with spring and expansion link, and one end of spring is fixedly connected with the middle part of handle is vertical, and the other end is fixedly connected with the top of expansion link.

One end of described screw rod is fixedly connected with the middle part of swingle is vertical, and the other end is connected with the tapped through hole that is arranged on handle middle part.

The length of described connecting rod is greater than the length of described screw rod.

The internal diameter of described spring is greater than the diameter of described screw rod.

The length of described screw rod is greater than the drift of described spring.

The lower end of described expansion link is provided with chamfering.

Compared with prior art, the utlity model has following beneficial effect: simple in structure, easy to use, the length of regulating sleeve spanner connecting rod in a big way, thereby can dismantle and fastening bolt or nut in different depth position, effectively reduce the quantity of the required box spanners that carry of personnel, not only can reduce use cost, and can reduce personnel's labour intensity, be conducive to increase work efficiency.

Accompanying drawing explanation

Fig. 1 is perspective view of the present utility model.

Fig. 2 is another stereochemical structure view of Fig. 1.

Fig. 3 is another perspective view of the present utility model.

Fig. 4 is another stereochemical structure view of Fig. 3.

Fig. 5 is stereochemical structure exploded perspective view of the present utility model.

Fig. 6 is another stereochemical structure view of Fig. 5.

Fig. 7 is the front view of Fig. 1.

Fig. 8 is the front view of Fig. 3.

Fig. 9 is the front view of Fig. 5.

In figure: 1-handle, 2-connecting rod, 3-spring, 4-expansion link, 5-chamfering, 6-collet head, 7-swingle, 8-screw rod, 9-tapped through hole.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of extension type box spanner, comprise handle 1, connecting rod 2, spring 3, expansion link 4, chamfering 5, collet head 6, swingle 7, screw rod 8, tapped through hole 9, vertical being fixedly connected with in middle part of one end of described connecting rod 2 and handle 1, the middle part of handle 1 is provided with tapped through hole 9, the inside of connecting rod 2 is provided with spring 3 and expansion link 4, vertical being fixedly connected with in middle part of one end of spring 3 and handle 1, and the other end is fixedly connected with the top of expansion link 4.

Vertical being fixedly connected with in middle part of one end of described screw rod 8 and swingle 7, the other end is connected with the tapped through hole 9 that is arranged on handle 1 middle part.

The length of described connecting rod 2 is greater than the length of described screw rod 8.

The internal diameter of described spring 3 is greater than the diameter of described screw rod 8.

The length of described screw rod 8 is greater than the drift of described spring 3.

The lower end of described expansion link 4 is provided with chamfering 5.

As shown in Figure 1, Figure 2 and Figure 7, in the time of needs dismountings and fastening bolt in putting compared with deep-seated or nut, first rotate swingle 7 by screw rod 8 precession connecting rods 2, expansion link 4 just can stretch out by the inwall along connecting rod 2 under the impetus of screw rod 8, then collet head 6 is aimed at and need to be disassembled with fastening bolt or nut and be inserted in collet head 6, last turning handle 1 can be dismantled with fastening the bolt in putting compared with deep-seated or nut.

As shown in Fig. 3, Fig. 4 and Fig. 8, in the time of needs dismountings and fastening bolt in more shallow position or nut, first rotating swingle 7 screws out screw rod 8 in connecting rod 2, expansion link 4 inwall along connecting rod 2 under the elastic force effect of spring 3 stretches into, then collet head 6 is aimed at and need to be disassembled with fastening bolt or nut and be inserted in collet head 6, last turning handle 1 can be dismantled with fastening the bolt in more shallow position or nut.

The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.

Claims

1. an extension type box spanner, comprise handle (1), connecting rod (2), spring (3), expansion link (4), chamfering (5), collet head (6), swingle (7), screw rod (8), tapped through hole (9), it is characterized in that: vertical being fixedly connected with in middle part of one end of described connecting rod (2) and handle (1), the middle part of handle (1) is provided with tapped through hole (9), the inside of connecting rod (2) is provided with spring (3) and expansion link (4), vertical being fixedly connected with in middle part of one end of spring (3) and handle (1), the other end is fixedly connected with the top of expansion link (4).

2. a kind of extension type box spanner according to claim 1, it is characterized in that: vertical being fixedly connected with in middle part of one end of described screw rod (8) and swingle (7), the other end is connected with the tapped through hole (9) that is arranged on handle (1) middle part.

3. a kind of extension type box spanner according to claim 1, is characterized in that: the length of described connecting rod (2) is greater than the length of described screw rod (8).

4. a kind of extension type box spanner according to claim 1, is characterized in that: the internal diameter of described spring (3) is greater than the diameter of described screw rod (8).

5. a kind of extension type box spanner according to claim 1, is characterized in that: the length of described screw rod (8) is greater than the drift of described spring (3).