CN205835127U - A kind of box spanner - Google Patents

Abstract

The utility model discloses a socket wrench, which belongs to the technical field of wrenches and comprises a socket head. The socket head includes a socket base block and an adjusting block which are slidably connected; Adaptive step groove, a chute is provided below the step groove, and the adjustment block includes a bottom plate, a block that is arranged on the bottom plate and forms a hexagonal nut bayonet with the side wall of the step groove, and a slide that is arranged under the bottom plate Block, the side wall of the chute is provided with a limit mechanism that limits the sliding of the slide block. The sleeve base block is also provided with a tensioning mechanism for pulling the adjustment block to prevent the adjustment block from detaching from the sleeve base block. After adopting this structure, a nut bayonet size can be adjusted, so that it can adapt to different A socket wrench for the size of the nut.

Description

a socket wrench

technical field

The utility model belongs to the technical field of wrenches, in particular to a socket wrench.

Background technique

As a daily tool, the socket wrench is widely used in daily life. It is composed of multiple hexagonal socket heads and equipped with handles, extension rods and other accessories. It is especially suitable for very narrow screw positions or deep depressions. bolts or nuts.

In the socket wrench in the prior art, the nut bayonet on the hexagonal socket head is generally fixed in size, so that the following disadvantages will be caused: when in use, it is necessary to prepare a plurality of sockets of different sizes and sizes Wrench, to adapt to the nuts of different sizes, causing problems such as inconvenient to carry.

Contents of the invention

The technical problem to be solved by the utility model is to provide a socket wrench with adjustable nut bayonet size so as to adapt to nuts of different sizes.

In order to solve the above-mentioned technical problems, a socket wrench of the present invention includes a socket head, and the socket head includes a socket base block and an adjusting block that are slidably connected; the socket base block is provided with a hex nut A suitable step groove, the step groove extends from the side of the sleeve base block to the middle of the sleeve base block; a chute is provided below the step groove, and the length direction of the chute is parallel to the length direction of the step groove; The adjusting block includes a bottom plate, a block provided on the bottom plate and forming a hex nut bayonet with the side wall of the step groove, and a slider arranged under the bottom plate, the slider is located in the chute and is slidably connected with the chute, The bottom plate is located in the step groove; the side wall of the chute is provided with a limit mechanism that limits the sliding of the slider, and the limit mechanism includes a threaded hole provided on the side wall of the chute and a screw threaded with the threaded hole. Screw, the end of the screw is pressed against the side of the slider; the sleeve base block is also provided with a tensioning mechanism for pulling the adjustment block to prevent the adjustment block from detaching from the sleeve base block. The counterbore extended at the inner end of the groove and the extension spring arranged in the counterbore, one end of the extension spring is connected with the end face of the counterbore, and the other end of the extension spring is connected with the slide block.

After adopting the above structure, the utility model has the following advantages: since the sleeve base block and the adjustment block are slidingly connected to form the sleeve head, in this way, the distance of the adjustment block sliding into the sleeve base block can be adjusted to adjust the size of the hex nut bayonet Size, so that it can adapt to nuts of different sizes; and the side wall of the chute is provided with a limit mechanism that limits the sliding of the slider, so that when the size is adjusted to the required size, the screw can be tightened to fix the adjustment block , which is convenient to use; moreover, a tensioning mechanism is also provided in the base block of the sleeve, which can prevent the adjustment block from detaching from the base block of the sleeve.

Preferably, the screw includes a threaded rod, a screw head and a force applying rod, the threaded rod and the screw head are integrally connected, and the force applying rod and the screw head are hinged. The hinged connection between the force applying rod and the screw head means that the side of the screw head away from the threaded rod is provided with a relief groove for giving way to the force applying rod, and the two side walls of the relief groove are provided with hinged holes, and the force applying rod The end is provided with a hinge pin, and the hinge pin is rotatably connected in the hinge hole. In this way, the force applying rod can facilitate the user to tighten or loosen the adjustment block, and facilitate the adjustment of the size of the bayonet socket of the hexagon nut.

Description of drawings

Fig. 1 is a schematic diagram of an exploded structure of a socket wrench of the present invention.

Fig. 2 is a schematic diagram of an exploded structure from another perspective of a socket wrench of the present invention.

Fig. 3 is a schematic structural view of a socket wrench of the present invention.

Fig. 4 is a schematic structural view of a socket wrench of the present invention after changing the size of the hex nut bayonet.

Fig. 5 is a schematic cross-sectional view of a socket wrench limit mechanism of the present invention.

Fig. 6 is a schematic cross-sectional view of a socket wrench tightening mechanism of the present invention.

Fig. 7 is a schematic cross-sectional view of a screw in a box wrench of the present invention.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, utility model is described in further detail.

Referring to accompanying drawings 1 to 7, a socket wrench includes a socket head, which is characterized in that: the socket head includes a socket base block 1 and an adjusting block 2 that are slidably connected; the socket base The block 1 is provided with a step groove 3 compatible with the hex nut, and the step groove 3 extends from the side of the sleeve base block 1 to the middle of the sleeve base block 1; a chute 4 is provided below the step groove 3 , the length direction of the chute 4 is parallel to the length direction of the step groove 3; the adjustment block 2 includes a bottom plate 5, a block 6 which is arranged on the bottom plate 5 and forms a hexagonal nut bayonet 8 with the side wall of the step groove 3 and sets The slider 7 under the base plate 5, the slider 7 is located in the chute 4 and is slidably connected with the chute 4, the base plate 5 is located in the step groove 3; the side wall of the chute 4 is provided with a limit slide The limit mechanism of block 7 sliding, described limit mechanism comprises the threaded hole 11 that is provided with on the side wall of chute 4 and the screw 10 that is threadedly connected with threaded hole 11, and the end of screw 10 is against the side of slide block 7; The sleeve base block 1 is also provided with a tensioning mechanism for pulling the adjustment block 2 to prevent the adjustment block 2 from breaking away from the sleeve base block 1. The tension mechanism includes a counterbore 9 extending along the inner end of the chute 4 And the extension spring 12 that is located in the counterbore 9, one end of the extension spring 12 is connected with the end face of the counterbore 9, and the other end of the extension spring 12 is connected with the slide block 7.

The screw 10 includes a threaded rod 14 , a screw head 15 and a force applying rod 16 , the threaded rod 14 is integrated with the screw head 15 , and the force applying rod 16 is hinged with the screw head 15 .

Described force rod 16 is hinged with screw head 15 and refers to: screw head 15 is provided with the give way groove 17 in order to make way for force rod 16 to give way to the side wall of screw head 15 away from threaded rod 14, and the two side walls of make way groove 17 are provided with In the hinge hole 18 , the end of the force applying rod 16 is provided with a hinge pin 13 , and the hinge pin 13 is rotatably connected in the hinge hole 18 .

The bottom plate 5, the clamping block 6 and the sliding block 7 are connected as a whole.

The working principle of the utility model is as follows: because the sleeve base block 1 and the adjustment block 2 are slidingly connected to form the sleeve head, in this way, the distance of the adjustment block 2 sliding into the sleeve base block 1 can be adjusted to adjust the size of the hex nut bayonet Size, so that it can adapt to nuts of different sizes; and the side wall of the chute is provided with a limit mechanism that limits the sliding of the slider, so that when the size is adjusted to the required size, the screw can be tightened to fix the adjustment block , which is convenient to use; moreover, a tensioning mechanism is also provided in the base block of the sleeve, which can prevent the adjustment block from detaching from the base block of the sleeve.

The above is only a preferred and feasible implementation example of the utility model, and cannot therefore limit the scope of rights of the utility model. Various other corresponding changes should fall within the protection scope of the claims of the present invention.

Claims (4)

1. a box spanner, including collet head, it is characterised in that: described collet head includes the sleeve matrix (1) being slidably connected With regulating block (2)；Described sleeve matrix (1) is provided with the step groove (3) adapted with hex nut, described step groove (3) by The side of sleeve matrix (1) extends to the middle part of sleeve matrix (1)；It is provided with chute (4), chute in described step groove (3) lower section (4) length direction is parallel with the length direction of step groove (3)；Described regulating block (2) includes base plate (5), is located on base plate (5) And the fixture block (6) that forms hex nut bayonet socket (8) with the sidewall of step groove (3) and the slide block (7) being located under base plate (5), described Slide block (7) is positioned at chute (4) and is slidably connected with chute (4), and described base plate (5) is positioned at step groove (3)；Described chute (4) sidewall is provided with and limits the position-limit mechanism that slide block (7) slides, and described position-limit mechanism includes arranging on the sidewall of chute (4) Screwed hole (11) and the screw (10) threadeded with screwed hole (11), the end of screw (10) pushes against with slide block (7) side； It is additionally provided with in described sleeve matrix (1) for holding regulating block (2) to prevent regulating block (2) from departing from the tension of sleeve matrix (1) Mechanism, described tensioning mechanism includes the counterbore (9) extended along chute (4) inner end and the extension spring (12) being located in counterbore (9), extension spring (12) one end is connected with the end face of counterbore (9), and extension spring (12) other end is connected with slide block (7).

2. according to a kind of box spanner described in claim 1, it is characterised in that: described screw (10) include threaded rod (14), Head of screw (15) and force application rod (16), threaded rod (14) is connected as a single entity with head of screw (15), force application rod (16) and head of screw (15) Hinged.

3. according to a kind of box spanner described in claim 2, it is characterised in that: described force application rod (16) cuts with scissors with head of screw (15) Connect and refer to: head of screw (15) is provided with the slot to make way (17) in order to step down to force application rod (16) away from threaded rod (14) side, steps down The two side of groove (17) is provided with hinge hole (18), and the end of force application rod (16) is provided with hinging pin shaft (13), hinging pin shaft (13) It is rotatably connected in hinge hole (18).

4. according to a kind of box spanner described in claim 1, it is characterised in that: described base plate (5), fixture block (6) and slide block (7) It is connected as a single entity.