CN113664763A

CN113664763A - Adjustable wrench head

Info

Publication number: CN113664763A
Application number: CN202110983230.4A
Authority: CN
Inventors: 王灿; 黄芳妮
Original assignee: Shenzhen Superlink Technology Co ltd
Current assignee: Shenzhen Superlink Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-19
Anticipated expiration: 2041-08-25
Also published as: CN113664763B

Abstract

The application relates to an adjustable wrench head, which is arranged on a wrench handle or a torsion instrument for screwing operation or used for testing torsion and comprises a wrench head body and a clamping assembly. The clamping assembly is detachably connected to the wrench head body and used for clamping an object (such as a screw) to be clamped in a screwing mode, and the clamping assembly can be replaced to adapt to the object to be clamped with different clamping surfaces; still be provided with adjusting part on the wrench head body, adjusting part can make the centre gripping subassembly slide on the wrench head body for the screw of equidimension not can be fit for to the centre gripping subassembly. The application provides a general adjustable spanner head, application scope is wide, and the protection that also can be fine is not damaged by the surface of centre gripping thing.

Description

Adjustable wrench head

Technical Field

The application relates to the field of hardware tools, in particular to an adjustable wrench head.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing a screw, a nut and other screw threads to tightly hold an opening or trepanning fastener of the screw or the nut by utilizing the lever principle. The wrench is generally provided with an opening or a trepan for holding the screw or the nut at one end or both ends of the handle portion, and when the wrench is used, the screw or the nut can be screwed by applying an external force to the handle portion along the rotation direction of the thread.

The clamping end face of the existing wrench head is basically fixed with the wrench body, and the size of the clamping end face of the wrench head is basically limited. When nuts of different sizes need to be screwed, wrenches of different sizes need to be adopted. Once a wrench with a smaller clamping end surface is used to screw a nut with a larger stress surface (clamped end surface), the clamping end surface of the wrench cannot completely cover the nut, so that the outer surface of the nut is damaged, and even the nut is scrapped. In addition, in practical situations, when the nut is screwed by an unadapted wrench, the screwing process is time-consuming and labor-consuming.

Aiming at the related technology, the problem that the existing wrench is low in adaptability exists at present.

Disclosure of Invention

In order to solve the problem that current spanner suitability is low at present, this application provides a spanner head with adjustable.

The application provides a spanner head with adjustable adopts following technical scheme:

an adjustable wrench head comprises a wrench head body and a clamping assembly for clamping a clamped object; the clamping assembly comprises a fixed piece and a moving piece, the wrench head body is detachably connected with the fixed piece and the moving piece, the moving piece is connected to the wrench head body in a sliding mode, the moving piece can be close to or far away from the fixed piece, and the moving piece and the fixed piece are both provided with specific clamping end faces; the wrench head body is further provided with a locking piece, and the locking piece is used for locking the position of the moving piece.

By adopting the technical scheme, when the clamped objects (such as screws) with different sizes need to be screwed, the moving parts and the fixed parts with specific sizes can be selected and replaced aiming at the clamped objects with corresponding sizes. Simultaneously, the accessible removes the existence of moving member position and locking piece, enables the inseparable degree that the better cooperation mounting of moving member comes the locking to be held the thing, when revolving to being held the thing again, and is more convenient laborsaving.

The clamping assembly suitable for different clamped objects with different clamping surfaces can be replaced according to specific sizes, and the clamping surface of the selected clamping assembly can completely cover the clamped surface of the clamped object, so that the outer surface of the screw cannot be damaged in the screwing process.

Optionally, the wrench head body comprises a mounting portion and a connecting portion; the mounting part and the connecting part are integrally formed; the top end face of the mounting part is provided with a strip-shaped opening, and the strip-shaped opening can be used for the moving member to slide on the wrench head body; the connecting part is used for connecting the wrench head body to the wrench handle or the torsion meter.

Through adopting above-mentioned technical scheme, in some narrow spaces, influence operating personnel and close soon, can with the wrench end is connected with longer spanner, can make things convenient for operating personnel to close work soon like this, also can be connected with the torque instrument in addition, to can testing torsion as required.

Optionally, the installation department is equipped with more than one and with locking piece screw-thread fit's spacing hole, the locking piece through spacing hole with moving member looks butt and can lock the moving member on the installation department.

Through adopting above-mentioned technical scheme, can with the suitable position of moving member restriction is guaranteed the centre gripping space between moving member and the mounting can close the screw soon, and through locking piece and spacing portion butt, also can be steady fixed the moving member in addition, prevents to produce when closing soon and slides.

Optionally, the moving member includes a clamping portion and a limiting portion, and the clamping portion and the limiting portion are detachably connected.

By adopting the technical scheme, when different clamped objects face, the clamping part and the fixing part can be replaced only, and the operation steps are simple.

Optionally, the mounting portion is provided with a containing groove into which the fixing member can be placed, and the fixing member and the mounting portion are connected in an inserting manner; the mounting with be equipped with the jack on the installation department, the mounting is mutually perpendicular with the bar mouth.

Through adopting above-mentioned technical scheme, the installation department is equipped with and supplies the storage tank that the mounting was put into, such design is material saving promptly, has also saved occupation space, designs into the grafting mode in addition, convenient to detach and installation, and it is more convenient to use.

Optionally, an adjusting assembly is further arranged on the mounting portion; the adjusting component comprises a transmission part, a connecting part and a limiting part; the transmission piece penetrates through the mounting part and is detachably connected with one side of the connecting piece; the other side of the connecting piece is detachably connected with the moving piece.

Through adopting above-mentioned technical scheme, through the operation adjust assembly can adjust the distance between moving member and the mounting to the different sizes of adaptation are by the centre gripping thing.

Optionally, the transmission member comprises a hand-held block and a screw rod; the handheld piece is connected the screw rod is kept away from the one end of moving part, the screw rod with the installation department is threaded connection.

Through adopting above-mentioned technical scheme, turn into the slip of moving member with the rotation of screw rod, both can reach the centre gripping space of adjusting between moving member and the mounting, after adjusting centre gripping space, because screw rod and installation department are threaded connection can carry out a spacing effect to the moving member, prevent that it from producing the slip at the in-process that closes soon.

Optionally, the limiting member is connected to one end of the transmission member close to the moving member, and the limiting member is used for limiting the transmission member to be disconnected from the connecting member.

Through adopting above-mentioned technical scheme, the locating part can effectually restrict being connected of driving medium and connecting piece, guarantees that the rotation of driving medium can drive the moving member and slide.

Optionally, be equipped with the holding mouth that recalls with the bar mouth on the installation department, the holding mouth can supply spacing portion installation and dismantlement use.

Through adopting above-mentioned technical scheme, the existence of holding mouth can make things convenient for the dismantlement and the installation of moving member.

The connecting part is also provided with a connecting component, and the connecting part is provided with a containing hole; the accommodating hole is used for installing the connecting component on the connecting part; the connecting component comprises a mounting component, an elastic component and a blocking component; the mounting part is detachably connected with the connecting part, one end of the elastic part is connected with the mounting part, the other end of the elastic part is connected with the blocking part, and the elastic part has elastic potential energy which enables the blocking part to be far away from the mounting part; the blocking piece can be pressed into the accommodating hole by external force; the connecting assembly is used for connecting the wrench head body and a universal wrench handle and/or a torsion instrument.

By adopting the technical scheme, the connecting assembly can connect the wrench head body to different wrench handles so as to adapt to the screwing operation under different operating environments, and can be connected with a torsion meter, so that the torsion can be tested conveniently.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when different clamped objects are clamped and screwed, on one hand, the fixing part and the clamping part which are matched with the clamped objects can be selected, the clamping is more tight, the clamping end surface between the fixing part and the moving part is tightly attached to the clamped surface of the clamped objects, the surface of the clamped objects cannot be damaged when the clamped objects are screwed, and the labor is saved; on the other hand, the distance between the moving part and the fixed part can be adjusted to adapt to clamped objects with different calibers, so that the adaptability of the wrench head is improved;

2. the mounting and dismounting are simple and convenient, the use is convenient, and the space is saved;

3. the torsion tester can be adapted to different application scenes, can be used for screwing and can also be installed on a torsion tester for testing torsion.

Drawings

FIG. 1 is a schematic view of an adjustable wrench head;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an exploded view of an adjustable wrench head;

FIG. 4 is a partial schematic view of an adjustable wrench head;

FIG. 5 is a schematic view of the position of the adjustment assembly and the moving member of an adjustable wrench head;

fig. 6 is an exploded view of an adjustment assembly of an adjustable wrench head.

Description of reference numerals: 1. a wrench head body; 11. an installation part; 110. an accommodating port; 111. a strip-shaped opening; 112. a limiting hole; 12. a connecting portion; 121. an accommodation hole; 13. a locking member;

2. a clamping assembly; 21. a fixing member; 210. a first fixed block; 211. a second fixed block; 22. a moving member; 221. a clamping portion; 2210. a clamping block; 2211. a clamping block; 222. a limiting part; 2220. a transverse block; 2221. a vertical block;

3. an adjustment assembly; 31. a transmission member; 311. a hand-held block; 312. a screw; 32. a connecting member; 33. a limiting member;

4. a connecting assembly; 41. a mounting member; 42. an elastic member; 43. a blocking member;

5. a containing groove;

6. a first hosel;

7. a second hosel.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1, an adjustable wrench head includes wrench head body 1 and centre gripping subassembly 2, and centre gripping subassembly 2 includes mounting 21 and moving member 22, and mounting 21 connects in wrench head body 1, and moving member 22 slides and connects in wrench head body 1, and the centre gripping terminal surface on mounting 21 and the moving member 22 can be to being carried out the centre gripping and closing soon by the centre gripping thing.

Referring to fig. 1, the moving member 22 can slide on the wrench head body 1 to approach or separate from the fixed member 21 so as to adjust the distance between the moving member 22 and the fixed member 21, and for this, it can be adapted to clamped objects of different sizes, specifically, screws, nuts, connectors, etc.

Referring to fig. 1, since the movable member 22 needs to be locked when the object to be clamped is screwed, the wrench head body 1 is further provided with a locking member 13, and the locking member 13 is a locking bolt in this embodiment. The moving member 22 can be locked to the wrench head body 1 by a locking bolt.

Referring to fig. 1, the wrench head body 1 includes a connection portion 12 and an installation portion 11, the connection portion 12 and the installation portion 11 are integrally formed, and the design is beneficial to improving the stability of the whole wrench head.

As shown in fig. 2, a receiving hole 121 is formed in the connecting portion 12, an inner wall of the receiving hole 121 is threaded, the receiving hole 121 is provided with a connecting assembly 4, and the connecting assembly 4 includes a mounting member 41, an elastic member 42, and a stopper 43. In the present embodiment, the mounting member 41 is a screw block, the elastic member 42 is a spring, and the blocking member 43 is a snap post. The screw thread piece threaded connection is in accommodation hole 121, and the one end and the screw thread piece of spring are connected, and the other end is connected with the card post, and the central axis of three is the same, and card post outer wall is connected with the spring inner circle lateral wall. The spring has elastic potential energy which enables the clamping column to be far away from the thread block.

As shown in fig. 2, the clip is inserted through the receiving hole 121 in the absence of external force, and is pushed into the receiving hole 121 when the wrench head is required to be connected to the wrench handle/torque meter. At this time, the spring is in a compressed state. The wrench handle/torque meter is then inserted into the connection portion 12, and when the insertion hole of the wrench handle/torque meter is aligned with the locking post, the locking post penetrates through the receiving hole 121 and is inserted into the insertion hole. In contrast, the wrench head, the wrench handle/torsion meter and the connecting part 12 can be connected, the connecting mode can be better screwed and clamped, the installation and the disassembly are simpler, and the working efficiency is improved.

As shown in fig. 3, a bar-shaped opening 111 is formed in a top end surface of the mounting portion 11, the bar-shaped opening 111 is used for the moving member 22 to slide on the mounting portion 11, a containing groove 5 is formed in one side of the mounting portion 11, and the containing groove 5 is perpendicular to the bar-shaped opening 111.

As shown in fig. 3, the fixing member 21 is detachably connected to the mounting portion 11, and is convenient to detach and mount. The fixing member 21 includes a first fixing block 210 and a second fixing block 211, the first fixing block 210 and the second fixing block 211 are integrally connected, a right-angle groove is formed between the first fixing block 210 and the second fixing block 211, and the first fixing block 210 and the second fixing block 211 are conveniently clamped in the accommodating groove 5 due to the existence of the right-angle groove. Specifically, the clamping face is on first fixed block 210, and one side back to the clamping face is provided with the chamfer, and the existence of chamfer can play the guard action, avoids cutting the staff.

As shown in fig. 3, the second fixing block 211 and the mounting portion 11 are both provided with insertion holes, the insertion holes are connected with the first insertion sheath 6, and the first insertion sheath 6 is matched with the insertion holes, so that the first fixing block 210 and the second fixing block 211 can be stably locked on the mounting portion 11. Specifically, when the fixing member 21 is installed, the second fixing block 211 is tightly clamped in the accommodating groove 5, the bottom end face of the first fixing block 210 is in contact with the bearing surface of the installation part 11, and the first plug bush 6 is inserted into the plug hole for plugging; at this time, the first fixing block 210 and the second fixing block 211 are chucked on the mounting portion 11.

As shown in fig. 3, the unique design of the fixing member 21 not only can make the first fixing block 210 and the second fixing block 211 installed stably, but also can limit the shaking of the fixing member 21 well, and is simple and convenient in installation and disassembly, i.e., the installation and disassembly efficiency is improved, and simultaneously, the space can be saved very much.

As shown in fig. 4, the moving member 22 includes a clamping portion 221 and a limiting portion 222, the limiting portion 222 includes a horizontal piece 2220 and a vertical piece 2221, the horizontal piece 2220 and the vertical piece 2221 are integrally formed, the clamping portion 221 has a groove for the vertical piece 2221 to be inserted into, the clamping portion 221 and the limiting portion 222 are both provided with insertion holes, and the clamping portion 221 and the limiting portion 222 are detachably connected through the second insertion sleeve 7.

As shown in fig. 4, specifically, in order to facilitate the installation and removal of the limiting portion 222 and optimize the spatial layout, an accommodating opening 110 is formed below the strip-shaped opening 111, and the strip-shaped opening 111 is communicated with the accommodating opening 110; horizontal piece 2220 up end and the up end in close contact with of holding mouth 110, erect piece 2221 and carry out the grafting cooperation through bar mouth 111 and clamping part 221, the bottom face of clamping part 221 and the planar butt in bar mouth 111 place, through this design, can ensure the holistic stability of moving member 22, when centre gripping and closure soon, can not rock.

As shown in fig. 4, the clamping portion 221 includes a block 2210 and a block 2211, and the block 2210 and the block 2211 are integrally formed in order to stabilize the clamping portion 221 as a whole. On one hand, for the sake of beauty and tight connection, the thickness of the fixture block 2211 is consistent with that of the mounting portion 11, on the other hand, according to actual needs, the clamping end surface of the clamp block 2210 and the clamped end surface of the clamped object keep the same size, so that accurate clamping and screwing of the clamped object can be ensured, and the clamping end surface of the clamp block 2210 and the clamped object are tightly attached to each other, so that the external surface of the clamped object can be damaged at the screwing part.

As shown in fig. 4, the holding portion 221 only needs to be replaced for the objects of different sizes, and the operation steps are simplified. In addition, the clamp 2210 and the fixture block 2211 are arranged in a stepped manner, and specifically, the bearing surface of the clamp 2210 is higher than that of the fixture block 2211.

As shown in fig. 4, when clamping and screwing are performed, the moving member 22 needs to be fixed, so 8 limiting holes 112 are further provided on two side surfaces of the mounting portion 11, inner walls of the limiting holes 112 are provided with internal threads engaged with the locking bolts, and the locking bolts pass through the limiting holes 112 to abut against the side walls of the clamping block 2210 and the clamping block 2211, thereby improving the mounting stability of the moving member 22.

In the present embodiment, the number of the stopper holes 112 is not limited, but the number of the stopper holes 112 may achieve the effect of locking the moving member 22.

As shown in fig. 5, the mounting portion 11 is further provided with an adjusting assembly 3 for more conveniently sliding the moving member 22 on the mounting portion 11.

Referring to fig. 5 and 6, the adjusting assembly 3 includes a transmission member 31, a connecting member 32 and a limiting member 33, the transmission member 31 is in threaded connection with the mounting portion 11, the connecting member 32 is used to connect the transmission member 31 and the moving member 22, the limiting member 33 is located between the connecting member 32 and the moving member 22, and the limiting member 33 is used to limit the transmission member 31 and prevent the transmission member 31 from being disconnected from the connecting member 32, so as to ensure the threaded rotation of the transmission member 31 and the linear sliding of the moving member 22. Specifically, the transmission member 31 includes a hand-held block 311 and a screw 312, the hand-held block 311 facilitates the operator to rotate the screw 312, and the other end of the screw 312 is threadedly connected to the connection member 32. In this embodiment, the connecting member 32 is an L-shaped block, one side of the L-shaped block is connected to the screw 312 by screw threads, and the other side of the L-shaped block is built on the bearing surface of the block 2211. The block 2211 is locked with the L-shaped block by a screw. It should be noted that the connecting member 32 is formed in an L-shape, which serves as a connecting member, and the right end surface of the L-shaped block is just abutted against the clamp block 2210, so as to provide a certain supporting function, and the whole clamping assembly 2 is more stable when clamping screws and connectors.

The limiting part 33 is a limiting block which is arranged at the tail end of the screw 312, and since the screw 312 is in threaded connection with the L-shaped block, when the screw 312 is rotated, the limiting block limits the position of the L-shaped block, and the moving part 22 can be driven to move when the screw 312 is rotated.

The inserting mode mentioned in the embodiment can also be a threaded connection, a riveting and the like as long as the connecting effect can be achieved.

The implementation principle of the embodiment is as follows: when the clamped object needs to be clamped and screwed, the wrench head body 1 is firstly connected with a wrench handle or a torsion instrument through the connecting part 12 (the wrench handle or the torsion instrument can be selected as required to adapt to different screwing scenes).

According to the size of the object to be clamped, a proper fixing piece 21 and a proper clamping part 221 are selected, the fixing piece 21 is placed in the accommodating groove 5 and then connected with the installation part 11 through the first plug bush 6, the clamping part 221 is connected with the connecting piece 32, the screw rod 312 is rotated to enable the moving piece 22 to slide to a proper position on the installation part 11 (namely, the distance between the moving piece 22 and the fixing piece 21 can just accommodate the object to be clamped), and then the locking bolt is used for further fixing the moving piece 22 through the limiting hole 112, so that the object to be clamped can be tightly clamped, and subsequent screwing is facilitated.

When clamping and screwing are needed to be carried out on clamping objects with different sizes, the clamping parts 221 of the fixed part 21 and the moving part 22 are correspondingly replaced, and then the distance between the moving part 22 and the fixed part 21 can be adjusted through the adjusting component 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An adjustable wrench head, characterized in that: comprises a wrench head body (1) and a clamping component (2) for clamping an object to be clamped; the clamping assembly (2) comprises a fixed piece (21) and a moving piece (22), the wrench head body (1) is detachably connected with the fixed piece (21) and the moving piece (22), the moving piece (22) is connected to the wrench head body (1) in a sliding mode, the moving piece (22) can be close to or far away from the fixed piece (21), and the moving piece (22) and the fixed piece (21) are both provided with specific clamping end faces;

the wrench head body (1) is further provided with a locking piece (13), and the locking piece (13) is used for locking the position of the moving piece (22).

2. The adjustable wrench head according to claim 1, wherein: the wrench head body (1) comprises a mounting part (11) and a connecting part (12); the mounting part (11) and the connecting part (12) are integrally formed; a strip-shaped opening (111) is formed in the top end face of the mounting portion (11), and the strip-shaped opening (111) can be used for enabling the moving piece (22) to slide on the wrench head body (1); the connecting part (12) is used for connecting the wrench head body (1) to a wrench handle or a torsion meter.

3. The adjustable wrench head according to claim 2, wherein: installation department (11) be equipped with more than one and with locking piece (13) screw-thread fit's spacing hole (112), locking piece (13) through spacing hole (112) with moving member (22) looks butt and can lock moving member (22) on installation department (11).

4. The adjustable wrench head according to claim 2, wherein: the moving piece (22) comprises a clamping part (221) and a limiting part (222), and the clamping part (221) and the limiting part (222) are detachably connected.

5. The adjustable wrench head according to claim 2, wherein: the mounting part (11) is provided with a containing groove (5) for placing the fixing piece (21), and the fixing piece (21) is connected with the mounting part (11) in an inserting manner; mounting (21) with be equipped with the jack on installation department (11), mounting (21) are mutually perpendicular with bar mouth (111).

6. The adjustable wrench head according to claim 2, wherein: the mounting part (11) is also provided with an adjusting component (3); the adjusting component (3) comprises a transmission piece (31), a connecting piece (32) and a limiting piece (33); the transmission piece (31) penetrates through the mounting part (11) and is detachably connected with one side of the connecting piece (32); the other side of the connecting piece (32) is detachably connected with the moving piece (22).

7. The adjustable wrench head according to claim 6, wherein: the transmission piece (31) comprises a hand-held block (311) and a screw rod (312); the handheld block (311) is connected at one end, far away from the moving piece (22), of the screw rod (312), and the screw rod (312) is in threaded connection with the mounting portion (11).

8. The adjustable wrench head according to claim 6, wherein: the limiting piece (33) is connected to one end, close to the moving piece (22), of the transmission piece (31), and the limiting piece (33) is used for limiting the transmission piece (31) to be separated from being connected with the connecting piece (32).

9. The adjustable wrench head according to claim 4, wherein: the mounting portion (11) is provided with an accommodating opening (110) communicated with the strip-shaped opening (111), and the accommodating opening (110) can be used for mounting and dismounting the limiting portion (222).

10. The adjustable wrench head according to claim 2, wherein: the connecting part (12) is also provided with a connecting component (4), and the connecting part (12) is provided with a containing hole (121); the accommodating hole (121) is used for installing the connecting component (4) on the connecting part (12); the connecting component (4) comprises a mounting component (41), an elastic component (42) and a blocking component (43); the mounting part (41) is detachably connected with the connecting part (12), one end of the elastic part (42) is connected with the mounting part (41), the other end of the elastic part (42) is connected with the blocking part (43), and the elastic part (42) has elastic potential energy which enables the blocking part (43) to be far away from the mounting part (41); the stopper (43) can be pressed into the accommodation hole (121) by an external force; the connecting component (4) is used for connecting the wrench head body (1) and a universal wrench handle and/or a torsion meter.