Dual-purpose metric-english hexagonal wrench

Abstract

The utility model discloses a metric and inch dual-purpose internal hexagonal wrench adopts double system integrated design, and the connecting piece can connect the wrench compatible two specifications bolts of metric and inch at the same time, solves single system limit. The metric end wrench realizes sliding adjustment through the cooperation of positioning protruding head and sliding rod body groove, and the metric wrench realizes modular connection through spring protruding head and groove insertion, realizes length adjustment and locking. The lengthening rod assembly can be replaced, one end is connected with the connector through the thread, and the other end is connected with the metric rod body through the spring protruding head, expands the use scene, and improves the flexibility and durability. The internal hexagonal head cooperates with 30 degree chamfer design, reduces the abrasion, prolongs the life, and is suitable for large-scale use and popularization in industry.

Description

Technical Field

[0001] This utility model belongs to the field of hand tools, and specifically relates to a metric and imperial dual-use hex wrench. Background Technology

[0002] Hex wrenches are indispensable tools in industrial manufacturing. They have many unique features and advantages. By applying torque to the screw, they reduce the amount of force required by the user.

[0003] However, conventional hex wrenches in the current technology have the following drawbacks: 1. Single-size design, incompatible with imperial and metric bolts. 2. Fixed length design, unable to adapt to different working conditions and space requirements. Utility Model Content

[0004] The purpose of this invention is to provide a dual-use (metric and imperial) hex wrench to solve the problems of existing hex wrenches being unable to simultaneously accommodate imperial and metric bolts, and being unable to adapt to different working conditions and space requirements.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A metric and imperial dual-use hex wrench includes an imperial sliding bar, a metric bar, and a connector;

[0007] The imperial sliding rod is provided with imperial hexagonal wrenches at both ends; the metric rod is provided with metric hexagonal wrenches at both ends;

[0008] The connector has a transverse through hole, the diameter of which matches the outer wall specification of the imperial sliding rod, allowing the imperial sliding rod to slide into the through hole.

[0009] The inner wall of the through hole of the connector is provided with a plurality of first grooves; the outer wall of the imperial sliding rod is provided with a plurality of sets of insertion slots along the axial direction, each set of insertion slots including a plurality of first insertion slots evenly provided along the circumference of the outer wall of the imperial sliding rod.

[0010] When the first compression spring is in its natural state, the first plug protrusion extends out of its corresponding first groove, and the imperial sliding rod can slide inside the through hole to allow the first plug protrusion to enter or leave its corresponding first plug groove.

[0011] The lower part of the connector is connected to the extension rod, and the inner wall of the lower part of the extension rod is provided with a connecting groove; the shape of the connecting groove matches the overall shape of the metric hexagonal wrench and the rod head of the metric rod.

[0012] The inner wall of the connecting groove is evenly provided with a plurality of second grooves along the circumference. The bottom of the second groove is connected to one end of the second compression spring, and the other end of the second compression spring is connected to the second insertion protrusion. The two ends of the metric rod are provided with second insertion slots that correspond one-to-one with the second grooves.

[0013] When the second compression spring is in its natural state, the second plug protrusion extends out of its corresponding second groove, and the metric rod can move the second plug protrusion into or out of the corresponding second plug groove by moving in and out of the connecting groove.

[0014] This utility model also has the following features:

[0015] Furthermore, the two ends of the through hole of the connector are respectively provided with internal hexagon heads that match the specifications of the outer wall of the imperial sliding rod;

[0016] The inner wall of the internal hexagon head is provided with multiple first grooves evenly distributed along the circumference.

[0017] Furthermore, the imperial sliding rod is provided with four sets of first insertion slots;

[0018] Two sets of the first insertion slots are located at both ends of the body of the imperial sliding rod;

[0019] The other two sets of first insertion slots are located in the middle of the body of the imperial sliding rod, and these two sets of first insertion slots correspond to the positions of the two internal hexagon heads.

[0020] Furthermore, three first grooves are evenly provided circumferentially on the inner wall of the through hole of the connector.

[0021] The inner wall of the connecting groove is evenly provided with three second grooves.

[0022] Furthermore, the depth of both the first groove and the second groove is 0.5-1mm;

[0023] The first and second plug protrusions extend to a length of 1.2-1.5 mm.

[0024] Furthermore, the outer end face of the internal hexagon head is chamfered at 30°.

[0025] Furthermore, the length of the extension rod is 50-150mm.

[0026] Furthermore, both the first and second plug-in protrusions are hemispherical.

[0027] Compared with the prior art, this utility model has the following technical effects:

[0028] (I) The dual-system (metric and imperial) hex wrench of this utility model adopts a dual-system integrated design. The connector can simultaneously connect imperial and metric wrenches, compatible with two types of bolts, thus solving the limitation of a single system. The imperial wrench achieves sliding adjustment through the cooperation of the positioning protrusion and the groove of the sliding rod, while the metric wrench achieves modular connection through the insertion of the spring protrusion and the groove, realizing length adjustment and locking.

[0029] (II) In this utility model of a dual-use (metric and imperial) hex wrench, the extended rod assembly is replaceable. One end is threaded to a connector, and the other end is connected to the metric rod body via a spring protrusion, expanding its application scenarios and improving its flexibility and durability. The hex head, with its 30° chamfer design, reduces wear and extends its lifespan, making it suitable for large-scale industrial use and promotion. Attached Figure Description

[0030] Figure 1 This is an exploded view of the overall structure of the metric and imperial dual-use internal hex wrench of this utility model;

[0031] Figure 2 This is an exploded view of the metric and imperial dual-use hex wrench of this utility model from another angle;

[0032] Figure 3 This is a front view of the metric and imperial dual-use hex wrench of this utility model;

[0033] Figure 4 This is a side view of the metric and imperial dual-use hex wrench of this utility model;

[0034] Figure 5 This is a schematic diagram of the working state of the metric and imperial dual-use hex wrench of this utility model.

[0035] The meanings of the labels in the diagram are as follows: 1. Imperial sliding rod; 2. Metric rod; 3. Connector; 4. First insertion slot; 5. Extension rod; 6. Second insertion slot; 7. Socket head; 8. Connecting slot. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, all components in this utility model are known components in the prior art. For example, the internal hex head uses a commonly known internal hex head.

[0037] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0038] like Figures 1-5 As shown, a metric-imperial dual-use hex wrench includes an imperial sliding rod 1, a metric rod 2, and a connector 3;

[0039] Imperial sliding rod 1 has imperial hexagonal wrenches at both ends; metric rod 2 has metric hexagonal wrenches at both ends.

[0040] The connector 3 has a horizontal through hole, and the imperial sliding rod 1 can slide into the through hole.

[0041] Multiple first grooves are evenly provided on the inner wall of the through hole of the connector 3 along the circumference. A first plug-in protrusion is connected in the first groove through a first compression spring. Multiple sets of plug-in slots are provided on the outer wall of the imperial sliding rod 1. Each set of plug-in slots includes multiple first plug-in slots 4 that correspond one-to-one with the first grooves.

[0042] When the first compression spring is in its natural state, the first plug protrusion extends out of its corresponding first groove. The imperial sliding rod 1 can slide inside the through hole, thereby causing the first plug protrusion to enter or leave the first plug groove 4 one by one.

[0043] The lower part of the connector 3 is screwed to the extension rod 5, and the inner wall of the lower part of the extension rod 5 is provided with a connecting groove 8 that matches the shape of the rod head of the metric rod 2;

[0044] Multiple second grooves are evenly provided on the inner wall of the connecting groove 8, and a second insertion protrusion is connected inside the second groove through a second compression spring; the two ends of the metric rod 2 are provided with second insertion grooves 6 that correspond one-to-one with the second grooves;

[0045] When the second compression spring is in its natural state, the second plug protrusion extends out of its corresponding second groove. The metric rod 2 can move in and out of the connecting groove 8, thereby causing the second plug protrusion to enter or leave the second plug groove 6 one by one.

[0046] In use, taking the imperial sliding rod 1 and connector 3 as an example, since the imperial sliding rod 1 can pass through the through hole of the connector 3, it will compress the first compression spring in the first groove when passing through. As the imperial sliding rod 1 slides, when the first plug-in protrusion connected to the first compression spring enters the corresponding first plug-in slot 4, the first compression spring returns to its natural state. Multiple first compression springs together restrict the circumferential rotation of the imperial sliding rod 1 and connector 3.

[0047] At this point, since the metric rod 2 is also connected, the entire device can be regarded as a force-saving rotating rod, which can complete the work of the imperial sliding rod 1 while restricting the circumferential rotation of the imperial sliding rod 1 and the connector 3.

[0048] It should be noted that those skilled in the art can select the specifications of the compression spring based on conventional knowledge in the field to make the overall device meet the required strength requirements. This is not the subject of this embodiment and will not be elaborated further.

[0049] When it is necessary to adjust the relative position of the imperial sliding rod 1 and the connector 3, simply continue to slide the imperial sliding rod 1 in the horizontal direction to recompress the first compression spring and dislodge the first insertion protrusion from the corresponding first groove.

[0050] The connection between the metric rod 2 and the extension rod 5 is the same, except that the length of the metric rod 2 does not need to be adjusted by sliding; simply replace the extension rod 5 with one of different lengths.

[0051] Specifically, the extension rod 5 has a length of 50-150mm. Optionally, the extension rod 5 includes three interchangeable sizes: 50mm, 100mm, and 150mm.

[0052] As a preferred embodiment, the connector 3 is provided with internal hexagon heads 7 on both sides of the through hole, which are matched with the outer wall specifications of the imperial sliding rod 1;

[0053] Multiple first grooves are evenly distributed along the circumference of the inner wall of the internal hex head 7.

[0054] A further preferred embodiment has four sets of first insertion slots on the imperial sliding rod 1;

[0055] Two sets of the first insertion slots, four in total, are located at both ends of the body of the imperial sliding rod 1;

[0056] The other two sets of first insertion slots 4 are located in the middle of the body of the imperial sliding rod 1, and these two sets of first insertion slots 4 correspond to the positions of the two internal hexagon heads 7.

[0057] Connecting the middle part of the imperial sliding rod 1 to the connector 3 is a common method. Therefore, two internal hexagon heads 7 are provided, and two sets of first insertion slots are opened at the corresponding positions in the middle of the imperial sliding rod 1 to strengthen the connection between the two.

[0058] It should be noted that this embodiment provides one configuration of the first insertion slot 4. In actual implementation, those skilled in the art can set the position of the first insertion slot group according to actual needs.

[0059] Specifically, three first grooves are evenly provided circumferentially on the inner wall of the through hole of connector 3;

[0060] Three second grooves are evenly distributed on the inner wall of the connecting groove.

[0061] In this configuration, the three springs are arranged at 120° to enhance overall strength.

[0062] The depth of both the first and second grooves is 0.5-1mm;

[0063] The first and second connector protrusions extend by 1.2-1.5 mm.

[0064] As a preferred option, the hex socket head cap 7 has a 30° chamfer on its end face. The hex socket head cap is made of S2 alloy steel and precision wire-cut, with the working end face being the outer end face and featuring a 30° chamfer to improve service life.

[0065] As a preferred embodiment, both the first and second plug-in protrusions are hemispherical, and the planes of the first and second plug-in protrusions are connected to the corresponding compression springs. The hemispherical surfaces are more conducive to entering or exiting the corresponding grooves.

Claims

1. A metric / imperial dual-use hex wrench, characterized in that, Includes imperial sliding rod (1), metric rod (2), and connector (3); The imperial sliding rod (1) is provided with imperial hexagonal wrenches at both ends; the metric rod (2) is provided with metric hexagonal wrenches at both ends; The connector (3) is provided with a transverse through hole. The diameter of the through hole matches the outer wall specification of the imperial sliding rod (1). The imperial sliding rod (1) can slide into the through hole. The inner wall of the through hole of the connector (3) is provided with a plurality of first grooves, and a first plug-in protrusion is connected in the first groove through a first compression spring; the outer wall of the imperial sliding rod (1) is provided with a plurality of sets of plug-in slots along the axial direction, and each set of plug-in slots includes a plurality of first plug-in slots (4) evenly opened along the circumference of the outer wall of the imperial sliding rod (1). When the first compression spring is in its natural state, the first plug protrusion extends out of its corresponding first groove, and the imperial sliding rod (1) can slide inside the through hole to allow the first plug protrusion to enter or leave its corresponding first plug groove (4). The lower part of the connector (3) is connected to the extension rod (5), and the lower inner wall of the extension rod (5) is provided with a connecting groove (8); the shape of the connecting groove (8) matches the overall shape of the metric hexagonal wrench and the rod head of the metric rod (2); The inner wall of the connecting groove (8) is uniformly provided with a plurality of second grooves along the circumference. The bottom of the second groove is connected to one end of the second compression spring, and the other end of the second compression spring is connected to the second plug-in protrusion. The two ends of the metric rod (2) are provided with second plug-in grooves (6) that correspond one-to-one with the second grooves. When the second compression spring is in its natural state, the second plug protrusion extends out of its corresponding second groove. The metric rod (2) can move the second plug protrusion into or out of the corresponding second plug groove (6) by moving in and out of the connecting groove (8).

2. The metric / imperial dual-use hex wrench as described in claim 1, characterized in that, The connector (3) is provided with internal hexagon heads (7) at both ends of the through hole, which are matched with the outer wall specifications of the imperial sliding rod (1). The inner wall of the internal hexagon head (7) is provided with multiple first grooves evenly distributed along the circumference.

3. The metric / imperial dual-use hex wrench as described in claim 2, characterized in that, The imperial sliding rod (1) is provided with four sets of first insertion slots; Two sets of first insertion slots (4) are located at both ends of the body of the imperial sliding rod (1); The other two sets of first insertion slots (4) are located in the middle of the body of the imperial sliding rod (1), and these two sets of first insertion slots (4) correspond to the positions of the two internal hexagon heads (7).

4. The metric / imperial dual-use hex wrench as described in claim 3, characterized in that, The inner wall of the through hole of the connector (3) is provided with three first grooves evenly distributed circumferentially; The inner wall of the connecting groove (8) is provided with three second grooves evenly distributed.

5. The metric / imperial dual-use hex wrench as described in claim 4, characterized in that, The depth of both the first and second grooves is 0.5-1mm; The first and second plug protrusions extend to a length of 1.2-1.5 mm.

6. The metric / imperial dual-use hex wrench as described in claim 2, characterized in that, The outer end face of the internal hex head (7) is chamfered at 30°.

7. The metric / imperial dual-use hex wrench as described in any one of claims 1-6, characterized in that, The length of the extension rod (5) is 50-150mm.

8. The metric / imperial dual-use hex wrench as described in any one of claims 1-6, characterized in that, Both the first and second plug protrusions are hemispherical.

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