CN219882419U

CN219882419U - Multifunctional socket wrench

Info

Publication number: CN219882419U
Application number: CN202223336601.9U
Authority: CN
Inventors: 张恒宇
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-10-24
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a multifunctional socket wrench, and belongs to the technical field of disassembly tools. The multifunctional wrench comprises a wrench head, wherein a cavity is arranged in the wrench head, one end of the wrench head is provided with an opening, and the cross section of the cavity is regular hexagon, regular pentagon or square; the cavity is also coaxially sleeved with a plurality of fastening plates, any one fastening plate can slide in the cavity, the shape of the cross section of the fastening plate is the same as that of the cross section of the cavity, the outer wall of one fastening plate is clung to the inner wall of the cavity, and two adjacent fastening plates are clung and can slide relatively; the cavity is kept away from open-ended one end fixedly and is equipped with a plurality of first springs, and any one fastening plate all is connected with at least one first spring. According to the utility model, the spanner head with the cavity, the first spring and the fastening plate are arranged, so that the spanner can be assembled/disassembled corresponding to a plurality of different nuts under the condition that only one spanner is needed, and meanwhile, the spanner head is not required to be replaced in the use process, so that the spanner is convenient to carry.

Description

Multifunctional socket wrench

Technical Field

The utility model belongs to the technical field of dismounting equipment, and particularly relates to a multifunctional socket wrench.

Background

For chemical equipment, such as instruments, meters, reaction kettles, pipelines and the like, bolts and nuts are common arrangement modes, but when the equipment is operated for a period of time, faults often occur, so that the equipment needs to be overhauled. A wrench is a tool for tightening and loosening nuts, which is common in production and maintenance sites. However, the existing wrench can be only used for nuts of one size, and for chemical equipment, the adopted nuts are of various specifications, so that a plurality of wrenches are required to be carried in the actual overhaul process, the physical strength of maintenance personnel is wasted, and accidents such as wrench falling and the like are easy to occur in the process of selecting different wrenches.

Disclosure of Invention

In order to solve at least one of the problems, the utility model provides a multifunctional socket wrench.

The technical scheme of the utility model is as follows: a multifunctional socket wrench comprises a wrench head, wherein a cavity is formed in the wrench head, an opening is formed in one end of the wrench head, and the cross section of the cavity is regular hexagon, regular pentagon or square; the cavity is internally and coaxially sleeved with a plurality of fastening plates, any one fastening plate can slide in the cavity, the shape of the cross section of the fastening plate is the same as that of the cross section of the cavity, the outer wall of one fastening plate is clung to the inner wall of the cavity, and two adjacent fastening plates are clung and can slide relatively; the cavity is kept away from open-ended one end fixedly and is equipped with a plurality of first springs, and any one fastening plate all is connected with at least one first spring.

One embodiment of the utility model is that one end of the spanner head, which is far away from the cavity, is also provided with a connecting vertical rod, and one end of the vertical rod, which is far away from the spanner head, is also provided with a cross rod.

Further, the cross rod is hinged with the vertical rod.

Further, a second chamber is arranged in the vertical rod or the spanner head, a diamond-shaped frame is arranged in the second chamber, and any two adjacent sides of the diamond-shaped frame are hinged; a vertical chute is further arranged in the second chamber, the chute coincides with the central line of the cavity, two opposite hinge points of the diamond frame can slide in the chute, a second spring is connected between the two hinge points, and at any moment, the second spring is in a stretching state; the other two opposite hinging points of the diamond-shaped frame are respectively connected with a positioning rod, and one end of the positioning rod, which is far away from the hinging point, passes through the second cavity and is arranged outside the second cavity; when the positioning rods are not subjected to external force, the distance between the two positioning rods and the end point of the second chamber is larger than the width or the diameter of the spanner head.

Preferably, the width of the second chamber is smaller than the sum of the side lengths of any two sides of the diamond-shaped frame.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the spanner head with the cavity, the first spring and the fastening plate are arranged, so that the spanner can be assembled/disassembled corresponding to a plurality of different nuts under the condition that only one spanner is needed, and meanwhile, the spanner head is not required to be replaced in the use process, so that the spanner is convenient to carry. In conclusion, the wrench has good application value.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a portion B in FIG. 1;

FIG. 3 is a schematic view of the structure of section A-A in FIG. 1.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 should not be construed as limiting the present utility model.

The deep hole in this embodiment refers to a hole with a length of the hole for mounting the bolt/screw greater than 5 cm.

Referring to fig. 1 to 3, a multifunctional socket wrench comprises a wrench head 1, wherein a cavity 2 is arranged in the wrench head 1, one end of the wrench head is provided with an opening, and the cross section of the cavity 2 is regular hexagon, regular pentagon or square; a plurality of fastening plates 3 are coaxially sleeved in the cavity 2, any one of the fastening plates 3 can slide in the cavity 2, the cross section of the fastening plate 3 is the same as that of the cavity 2, the outer wall of one of the fastening plates 3 is clung to the inner wall of the cavity 2, and two adjacent fastening plates 3 are clung and can slide relatively; the cavity 2 is fixedly provided with a plurality of first springs 11 at one end far away from the opening, and at least one first spring 11 is connected with any one fastening plate 3.

Specifically, the wrench head 1 is a main component for removing/fastening a nut, and for the wrench head 1, it has a certain height, and the cross section of the outer wall thereof may be any pattern, such as a circle, a square or even an irregular pattern, but is generally provided as a circle or a square in terms of processing convenience, so in this embodiment, the cross section of the outer wall of the wrench head 1 is provided as a square; a cavity 2 is arranged in the spanner head 1, one end of the cavity 2 is provided with an opening, namely, the whole shape of the spanner head 1 is a hollow cube with one end provided with an opening.

For the cavity 2, the function is to tighten/disassemble the nut while accommodating the corresponding fastening plate 3. The cross section of the cavity 2 is the same as the profile of the nut to be disassembled/fastened: since the current nuts are mainly classified into hexagonal nuts, pentagonal nuts and tetragonal nuts, the cross section of the cavity 2 may be also set to one of regular hexagons, regular pentagons or squares. And for the cavity 2, it needs to correspond to the specification of an existing nut, for example, for a nut with specification of GB/T41-2000 and d=m12, the size and dimension of the cavity 2 just match with the nut, so that the nut can be disassembled and fastened.

For the fastening plate 3, it functions to fasten/detach the nut. The shape of the fastening plate is the same as that of the cavity 2, the sizes of the fastening plates 3 are sequentially reduced, meanwhile, any two adjacent fastening plates 3 are closely attached to each other and can slide relatively, and the fastening plate 3 adjacent to the cavity 2 is closely attached to the inner wall of the cavity 2 and can keep sliding relatively; this arrangement allows all the fastening plates 3 to slide within the cavity 2. Meanwhile, since the fastening plates 3 serve to fasten/detach nuts, it is required that each fastening plate 3 also needs to correspond to one specification of nuts, and it is easily understood by those skilled in the art that the smaller the size of the fastening plate 3, the smaller the specification of its corresponding nut.

For the fastening plate 3, it is desirable to perform the corresponding function, and it is also necessary to make the fastening plate 3 of a small size not affect the nut of a large size when needed, so that a plurality of first springs 11 are further disposed at one end of the cavity 2 far away from the opening, the other end of the first springs 11 is connected with one end of the fastening plate 3 facing the first springs 11, and each fastening plate 3 corresponds to at least one first spring 11. In theory, the larger the number of the first springs 11 corresponding to each fastening plate 3, the better, but in practice, 3 to 5 first springs 11 may be corresponding to each fastening plate 3 in view of cost, space, etc., and the first springs 11 are uniformly connected with the fastening plate 3. The fastening plate 3 is not lost under the action of the first spring 11, and the small-sized fastening plate 3 does not have any influence on the operation when it is directed against nuts of different specifications.

As is clear from the above, the wrench of the present embodiment is provided with a plurality of different fastening plates 3, and thus can be used for nuts of various specifications. Meanwhile, in the actual use process, corresponding bolts are arranged in the nuts, and for a conventional socket spanner (deep hole spanner), when the bolts are too long, one end of each bolt can prop against the top of the socket spanner, so that the socket spanner is difficult to apply; however, with the wrench of the present embodiment, even though it has a long bolt, the bolt enters the inside of the cavity 2 due to the cavity 2, and the use of the wrench is not affected.

Similar to the conventional wrench, the wrench of this embodiment is further provided with a connecting vertical rod 4 at one end of the wrench head 1 far away from the opening of the cavity 2, and a cross rod 8 at one end of the connecting vertical rod 4 far away from the wrench head 1, wherein the cross rod 8 facilitates the application of torque by an operator.

In some cases the position and the outside of the nut to be fastened/removed present an angle, whereas in order to cope with this situation the cross bar 8 and the vertical bar 4 are hinged so that the cross bar 8 can be turned in relation to the vertical bar 4 so that the wrench of the present embodiment can be applied to these types of nuts.

Although the nuts with different sizes can be fastened/disassembled only by adopting the components, in the actual use process, particularly for some deep hole nuts, certain difficulty exists in directly arranging the wrench head 1 in the deep hole to disassemble the nuts: without aligning the center of the cavity 2 with the center of the nut, it is possible that the nut to be disassembled is deviated from the center of the cavity 2, resulting in that the nut that should be matched with the nut is jacked up, making it difficult to be fastened/disassembled.

In order to cope with the above, a second chamber 5 is also provided, and it is possible for the second chamber 5 to be provided in the vertical bar 4 or in the wrench head 1, and the second chamber 4 should not be in communication with the cavity 2. When the second chamber 5 is provided inside the wrench head 1, the wrench head 1 is required to have a higher height and a relatively higher processing difficulty, so that in this embodiment, the second chamber 5 is provided at the bottom of the vertical rod 4.

Meanwhile, a diamond-shaped frame 6 and a vertical chute 9 parallel to the vertical rod 4 are arranged in the second chamber 5, and the chute 9 coincides with the central line of the cavity 2, and the central line of the cavity 2 refers to: for a regular polygon, a circle is always inscribed or circumscribed, the center of the circle is the center of the regular polygon, and a line formed by the centers of a plurality of sections of the regular polygon is the center line of the cavity 2. For the diamond 6, any two adjacent sides are hinged, so that the structure of the whole diamond 6 is not fixed, and the distance between two opposite hinge points can be increased or decreased. Meanwhile, as shown in fig. 2, two opposite hinge points of the diamond-shaped frame 6 are arranged in the chute 9 and can slide, a second spring 10 is connected between the two hinge points, and at any moment, the second spring 10 is in a stretching state, so that the two hinge points have a tendency to move towards the middle.

Meanwhile, two opposite hinging points on the left side and the right side of the diamond 6 are connected with a positioning rod 7, the lengths of the two positioning rods 7 are equal, one end of the positioning rod 7 penetrates through the side wall of the second chamber 5 and is arranged outside the second chamber 5, and meanwhile, when the two opposite hinging points on the left side and the right side of the diamond 6 move, the part, which is arranged outside the second chamber 5, of the positioning rod 7 can be relatively lengthened or shortened under the driving of the two opposite hinging points on the left side and the right side.

Meanwhile, when the positioning rods 7 are not subjected to external force, namely, when the distance between the upper hinge point and the lower hinge point is closest and the distance between the left hinge point and the right hinge point is farthest, the distance between the end points of the two positioning rods 7 far away from the second chamber 5 is larger than the width or the diameter of the wrench head 1 (when the cross section of the wrench head is square, the width is the cross section, and when the cross section of the wrench head is circular, the diameter is the cross section). So that the end of the positioning rod 7 can be brought into contact with the side wall of the deep hole in advance with respect to the side wall of the wrench head 1.

Under the action of the second chamber 5, the diamond-shaped frame 6 and the positioning rods 7, when the endpoints of the two positioning rods 7 contact the side wall of the deep hole, the two positioning rods 7 synchronously shrink or expand, so that the sliding chute 9 coincides with the central line of the deep hole, and the sliding chute 9 coincides with the central line of the cavity 2, so that the central line of the deep hole coincides with the central line of the cavity 2, and the fastening plates 3 are coaxially sleeved, and the shape of the fastening section is the same as the shape of the section of the cavity 2, so that the central line of each fastening plate 3 is aligned with the central line of the deep hole. This makes the fastening/removal process easier.

When the function of the device is required to be normally performed, a limiting block for limiting the left hinge point and the right hinge point of the diamond 6 to move outwards endlessly is arranged in the second chamber 5, or the width of the second chamber 5 is limited. In practical use, if the limiting block is arranged, the width of the second chamber 5 is wider, and when the width is too wide, the strength of the vertical rod 4 is too low. The present embodiment therefore defines a width of the second chamber 5 that is less than the sum of the lengths of any two sides of the diamond 6.

The use principle is as follows: when the positioning rods 7 enter the deep holes, the two positioning rods 7 shrink inwards simultaneously under the pressure action of the side walls of the deep holes, so that the center line of the cavity 2 and the center line of the deep holes coincide. The bolt and the nut jack up the smaller fastening plate 3, the fastening plate 3 matched with the nut is clung to the outer side wall of the nut, and then the cross rod 8 is rotated to detach/fasten the fastening plate.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model disclosed in the embodiments of the present utility model should be covered by the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. The multifunctional socket wrench is characterized by comprising a wrench head, wherein a cavity is arranged in the wrench head, one end of the wrench head is provided with an opening, and the cross section of the cavity is regular hexagon, regular pentagon or square; the cavity is internally and coaxially sleeved with a plurality of fastening plates, any one fastening plate can slide in the cavity, the shape of the cross section of the fastening plate is the same as that of the cross section of the cavity, the outer wall of one fastening plate is clung to the inner wall of the cavity, and two adjacent fastening plates are clung and can slide relatively; the cavity is kept away from open-ended one end fixedly and is equipped with a plurality of first springs, and any one fastening plate all is connected with at least one first spring.

2. The multifunctional socket wrench of claim 1, wherein one end of the wrench head away from the cavity is further provided with a connecting vertical rod, and one end of the vertical rod away from the wrench head is further provided with a cross rod.

3. The multi-purpose socket wrench of claim 2, wherein the cross bar is hinged to the vertical bar.

4. The multifunctional socket wrench of claim 2, wherein a second chamber is further arranged in the vertical rod or the wrench head, a diamond-shaped frame is arranged in the second chamber, and any two adjacent sides of the diamond-shaped frame are hinged; a vertical chute is further arranged in the second chamber, the chute coincides with the central line of the cavity, two opposite hinge points of the diamond frame can slide in the chute, a second spring is connected between the two hinge points, and at any moment, the second spring is in a stretching state; the other two opposite hinging points of the diamond-shaped frame are respectively connected with a positioning rod, and one end of the positioning rod, which is far away from the hinging point, passes through the second cavity and is arranged outside the second cavity; when the positioning rods are not subjected to external force, the distance between the two positioning rods and the end point of the second chamber is larger than the width or the diameter of the spanner head.

5. The multi-purpose socket wrench of claim 4, wherein the width of the second chamber is less than the sum of the lengths of any two sides of the diamond.