Double-end double offset ring spanner

Abstract

The double-end box spanner comprises a spanner handle (1), a first box spanner head (10) is arranged at the outer end of the spanner handle (1), the double-end box spanner further comprises a fixing rod (2), a high-neck rod (3) and an adjusting part (4), the two ends of the high-neck rod (3) are hinged to the fixing rod (2) and the adjusting part (4) respectively, and the effect that one spanner has three purposes can be achieved, so that on one hand, the number of carry-on tools in inspection can be reduced, and the workload is reduced; and on the other hand, the number of times of wrench replacement by inspection personnel during work can be effectively reduced, and the working efficiency can be improved. In addition, the wrench can be provided with wrench heads with different sizes, and different wrench heads can be replaced according to bolts with various sizes, so that the use convenience is further improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a double-ended box wrench. Background Art

[0002] Wrenches are one of the most commonly used tools in the daily work of inspectors. For example, when disassembling and assembling the bolts on the shells or flanges of various pipeline equipment in natural gas stations and in the field during daily maintenance inspections, various types of wrenches such as open wrenches, box wrenches, and socket wrenches are needed, among which box wrenches are used more frequently. However, during the inspection process, it was found that the existing box wrenches have the following shortcomings:

[0003] During work, inspectors often need to choose different types of spanners according to the installation position of bolts or flanges. The commonly used types are: straight spanners, bent neck spanners and high neck spanners. To meet work needs, inspectors need to carry three types of spanners at the same time, which will increase the number and weight of tools they carry. In addition, due to its shape, high neck spanners are difficult to place in a tool box when multiple spanners are stored together. They usually take up a large space and increase the burden of carrying. Summary of the invention

[0004] The utility model aims to provide a double-ended box wrench which can solve the above problems. The double-ended box wrench can be freely switched between three states: a straight wrench, a bent neck wrench and a high neck wrench. The utility model is convenient to use and carry, and can solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a double-ended box spanner comprises a spanner handle, the outer end of the spanner handle is provided with a first box spanner head, and also comprises a fixing rod, a high neck rod and an adjusting part, and the two ends of the high neck rod are respectively hinged with the fixing rod and the adjusting part; one end of the fixing rod is axially provided with a plug hole, and the plug hole is plugged and matched with the inner end of the spanner handle, and the other end of the fixing rod is provided with a fixing rod inclined surface, and the angle between the fixing rod inclined surface and the length direction of the fixing rod is a first angle, and a first axial hole is provided at the fixing rod inclined surface; the two ends of the high neck rod are respectively provided with a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are parallel, and the angle between the first inclined surface and the length direction of the high neck rod is a second angle, a first axis is provided on the first inclined surface, and a second axis is provided on the second inclined surface; the adjusting part is composed of a connecting seat and a second box spanner head connected, and the connecting seat is connected to the second box spanner head. One end of the seat is connected to the second box wrench head, and the other end of the connecting seat is provided with an adjusting head inclined surface, the angle between the adjusting head inclined surface and the plane where the second box wrench head is located is a third angle, and a second axial hole is opened at the adjusting head inclined surface; the fixing rod inclined surface cooperates with the second inclined surface, the first inclined surface cooperates with the adjusting head inclined surface, the first axis cooperates with the second axial hole, and the second axis cooperates with the first axial hole; the angles of the first angle, the second angle and the third angle are equal, and they are all acute angles; a fastening sleeve is installed on the outer periphery of the high neck rod, and the fastening sleeve can slide axially along the high neck rod; a first strip hole is opened on the side of the fastening sleeve corresponding to the first inclined surface, and a second strip hole is opened on the side of the fastening sleeve corresponding to the second inclined surface, and the first strip hole and the second strip hole are respectively located at two ends of the fastening sleeve; the length of the fastening sleeve can simultaneously cooperate with the adjusting head inclined surface, the first inclined surface, the second inclined surface and the fixing rod inclined surface.

[0006] A second bolt hole and a second connecting hole are provided on the connecting seat, and the second connecting hole connects the second bolt hole and the second shaft hole, and the diameter of the second connecting hole is smaller than the diameter of the second bolt hole and the second shaft hole, and a second bolt is installed in the second bolt hole, and the diameter of the bolt head of the second bolt is larger than the diameter of the second connecting hole, and a screw hole is provided at the end of the first shaft, and the second bolt passes through the second connecting hole and is threadedly connected to the first shaft; a first bolt hole and a first connecting hole are provided on the fixing rod, and the first connecting hole connects the first bolt hole and the first shaft hole, and the diameter of the first connecting hole is smaller than the diameter of the first bolt hole and the first shaft hole, and a first bolt is installed in the first bolt hole, and the diameter of the bolt head of the first bolt is larger than the diameter of the first connecting hole, and a screw hole is provided at the end of the second shaft, and the first bolt passes through the first connecting hole and is threadedly connected to the second shaft.

[0007] The portion of the second bolt located in the second connecting hole is not provided with threads; the portion of the first bolt located in the first connecting hole is not provided with threads.

[0008] One end of the fixing rod provided with the insertion hole is provided with a limiting convex edge, and the limiting convex edge can cooperate with the fastening sleeve.

[0009] The fixing rod is provided with a positioning hole, the direction of the positioning hole is perpendicular to the direction of the insertion hole, the positioning hole is communicated with the insertion hole, the lever handle is provided with a through hole corresponding to the positioning hole, a positioning pin is installed in the positioning hole, and one end of the positioning pin is threadedly connected to the fixing rod.

[0010] A guide rail is provided on the side of the fastening sleeve along the length direction of the fastening sleeve. The guide rail is located on the side wall between the first strip hole and the second strip hole. The cross-section of the guide rail is an isosceles trapezoid, and its upper base is connected to the fastening sleeve. A trapezoidal groove is provided on the connecting seat. The cross-sectional shape of the trapezoidal groove is the same as that of the guide rail. The trapezoidal groove can slide with the guide rail. A limit block is provided on one side of the guide rail to prevent the connecting seat from sliding along the guide rail.

[0011] The angle of the first angle, the second angle or the third angle is 45 degrees or 55 degrees.

[0012] The positive effects of the utility model are:

[0013] Its fixed rod, high neck rod and adjustment part are hinged to form its main body. Through the relative rotation between the parts, it can be transformed into a straight wrench, a bent neck wrench or a high neck wrench according to the needs of use, so that the effect of three uses of one wrench can be achieved. In this way, on the one hand, the number of tools carried with you during inspections can be reduced, and the workload can be reduced; on the other hand, it can effectively reduce the number of times the inspectors change wrenches during work, which can improve work efficiency. It can also be equipped with wrench heads of different sizes, and different wrench heads can be replaced according to bolts of various sizes to further improve the convenience of use and improve work efficiency.

[0014] The angle between the wrench head and the handle can be adjusted by rotating the three parts to adapt to different usage requirements.

[0015] When storing, it can be converted into a straight wrench form, which is convenient for placing side by side in the tool box, making full use of the storage space, with a small storage volume and convenient for carrying. Its wrench handle and fixing rod are plug-in matching. When storing, the two can be separated, which can further reduce the storage space and further improve the convenience of carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the double-ended box spanner described in the utility model, in which the left end is a straight spanner and the right end is a bent neck spanner;

[0017] Figure 2 This is a schematic diagram of the main structure of the double-ended box spanner of the utility model, in which the left end is transformed into a high-necked spanner state. Figure 2 The fastening sleeve is omitted;

[0018] Figure 3 is an enlarged structural schematic diagram of the high neck rod;

[0019] Figure 4 is an enlarged structural schematic diagram of the regulating part;

[0020] Figure 5 is an enlarged structural schematic diagram of the fixing rod;

[0021] Figure 6 is a front view of the fastening sleeve;

[0022] Figure 7 yes Figure 6 Left view of

[0023] Figure 8 yes Figure 6 AA cross-sectional structural diagram;

[0024] Fig. 9 is a stereoscopic view of the fastening sleeve;

[0025] Fig.10 is a stereoscopic view of the wrench when it is converted into a straight wrench, in which the tightening sleeve 5 locks the adjusting head inclined surface 47, the first inclined surface 31, the second inclined surface 32 and the fixing rod inclined surface 28;

[0026] Fig.11 is a stereoscopic view of the wrench when it is converted into a straight wrench, in which the fastening sleeve 5 slides backwards, so that the adjusting head inclined surface 47 and the first inclined surface 31 can rotate;

[0027] Fig.12 is a stereoscopic diagram of the wrench when it is converted into a high-necked wrench, in which the fastening sleeve 5 moves upward, and the second inclined surface 32 and the fixed rod inclined surface 28 can rotate relative to each other;

[0028] Fig.13 is a stereoscopic view of the wrench when it is converted into a high-necked wrench, in which the tightening sleeve 5 locks the adjusting head inclined surface 47, the first inclined surface 31, the second inclined surface 32 and the fixing rod inclined surface 28;

[0029] Fig.14 yes Fig.13 A three-dimensional image from another angle.

[0030] Reference numerals:

[0031] 1 wrench handle 10 first plum wrench head;

[0032] 2 fixing rod 20 positioning hole 21 first bolt hole 22 first connecting hole 23 first shaft hole 24 positioning pin 25 insertion hole 26 first bolt 27 limiting convex edge 28 fixing rod inclined surface;

[0033] 3 high neck rod 30 first axis 31 first inclined surface 32 second inclined surface 33 second axis;

[0034] 4 Adjustment portion 40 second box spanner head 41 second bolt hole 42 second connection hole 43 second shaft hole 44 trapezoidal groove 45 second bolt 46 connection seat 47 adjustment head inclined surface;

[0035] 5 Fastening sleeve 50 first strip hole 51 second strip hole 52 guide rail 53 limit block. DETAILED DESCRIPTION

[0036] The purpose of the utility model is to provide a double-ended box wrench. The utility model will be further described below in conjunction with specific embodiments.

[0037] like Figure 1 As shown, the double-ended box spanner comprises a spanner handle 1, the outer end of which is provided with a first box spanner head 10. It also comprises a fixed rod 2, a high neck rod 3 and an adjusting portion 4. The two ends of the high neck rod 3 are hinged to the fixed rod 2 and the adjusting portion 4 respectively.

[0038] like Figure 4 As shown, one end of the fixing rod 2 is provided with an axial insertion hole 25. The insertion hole 25 is plugged into the inner end of the wrench handle 1. The other end of the fixing rod 2 is provided with a fixing rod inclined surface 28, and the angle between the fixing rod inclined surface 28 and the length direction of the fixing rod 2 is a first angle a. The fixing rod inclined surface 28 is provided with a first axial hole 23. Figure 3 As shown, the two ends of the high neck rod 3 are respectively provided with a first inclined surface 31 and a second inclined surface 32, and the first inclined surface 31 and the second inclined surface 32 are parallel. The angle between the first inclined surface 31 and the length direction of the high neck rod 3 is a second angle b. The first inclined surface 31 can be vertically provided with a first axis 30, and the second inclined surface 32 can be vertically provided with a second axis 33. Figure 4 As shown, the adjustment part 4 is composed of a connecting seat 46 and a second box spanner head 40, one end of the connecting seat 46 is connected to the second box spanner head 40, and the other end of the connecting seat 46 is provided with an adjustment head inclined surface 47, and the angle between the adjustment head inclined surface 47 and the plane where the second box spanner head 40 is located is a third angle c. A second shaft hole 43 is provided at the adjustment head inclined surface 47. The fixing rod inclined surface 28 cooperates with the second inclined surface 32, the first inclined surface 31 cooperates with the adjustment head inclined surface 47, the first shaft 30 cooperates with the second shaft hole 43, and the second shaft 33 cooperates with the first shaft hole 23. The angles of the first angle a, the second angle b and the third angle c are equal, and they are all acute angles.

[0039] like Fig. 9 As shown, a fastening sleeve 5 is installed on the outer periphery of the high neck rod 3, and the fastening sleeve 5 can slide axially along the high neck rod 3. Figure 8 As shown, a first strip hole 50 is formed on the side of the fastening sleeve 5 corresponding to the first inclined surface 31, and a second strip hole 51 is formed on the side of the fastening sleeve 5 corresponding to the second inclined surface 32. The first strip hole 50 and the second strip hole 51 are respectively located at two ends of the fastening sleeve 5. Figure 1As shown, the length of the fastening sleeve 5 is such that when the adjusting head inclined surface 47 and the first inclined surface 31 are located in the first strip hole 50, the second inclined surface 32 and the fixing rod inclined surface 28 are also located in the second strip hole 51. At this time, the fastening sleeve 5 can prevent the adjusting head inclined surface 47 and the first inclined surface 31 from rotating relative to each other, and can also prevent the second inclined surface 32 and the fixing rod inclined surface 28 from rotating.

[0040] The conversion process of the two use states of the present invention is as follows:

[0041] Convert from a straight wrench to an offset wrench Figure 1 The figure shows the initial state, firstly, the fastening sleeve 5 is slid toward the first box spanner head 10, and stops when the first inclined surface 31 and the adjusting head inclined surface 47 are both located outside the fastening sleeve 5; then, the adjusting portion 4 is rotated 180 degrees relative to the high neck rod 3 with the first axis 30 as the axis, so that the adjusting portion 4 is erected relative to the high neck rod 3; then, the fastening sleeve 5 is slid toward the second box spanner head 40, and stops when the second inclined surface 32 and the fixing rod inclined surface 28 are located outside the fastening sleeve 5; then, the second The shaft 33 is used as the axis to rotate the high neck rod 3 180 degrees relative to the fixed rod 2, so that the high neck rod 3 stands upright relative to the fixed rod 2; finally, the fastening sleeve 5 is moved toward the fixed rod 2, and the second strip hole 51 cooperates with the fixed rod 2, so that the adjusting head inclined surface 47, the first inclined surface 31, the second inclined surface 32 and the fixed rod inclined surface 28 are simultaneously located in the fastening sleeve 5, and the adjusting head inclined surface 47, the first inclined surface 31, the second inclined surface 32 and the fixed rod inclined surface 28 are locked by the fastening sleeve 5 and cannot rotate. In the form of a high neck wrench, it can also be used as a socket wrench to remove bolts that are inconvenient to remove with an ordinary box wrench, thereby further expanding its application range.

[0042] The process of converting from a high-necked wrench to a straight wrench is opposite to the above process, and finally the adjusting head inclined surface 47, the first inclined surface 31, the second inclined surface 32 and the fixing rod inclined surface 28 still need to be locked by the fastening sleeve 5.

[0043] The tightening sleeve 5 can lock the shape of the box spanner on one hand, and can increase the integrity or strength of the box spanner on the other hand.

[0044] like Figure 4 As shown, the connection seat 46 is provided with a second bolt hole 41, a second connection hole 42 and a second shaft hole 43. The second connection hole 42 connects the second bolt hole 41 and the second shaft hole 43. The diameter of the second connection hole 42 is smaller than the diameter of the second bolt hole 41 and the second shaft hole 43. Figure 2 As shown, a second bolt 45 is installed in the second bolt hole 41, and the diameter of the bolt head of the second bolt 45 is larger than the diameter of the second connecting hole 42. A screw hole is provided at the end of the first shaft 30, and the second bolt 45 passes through the second connecting hole 42 and is threadedly connected to the first shaft 30, thereby fixing the adjusting part 4 and the high neck rod 3 so that the two can only rotate but cannot be separated.

[0045] like Figure 5 As shown, the fixing rod 2 is provided with a first bolt hole 21, a first connecting hole 22 and a first shaft hole 23. The first connecting hole 22 connects the first bolt hole 21 and the first shaft hole 23. The diameter of the first connecting hole 22 is smaller than the diameter of the first bolt hole 21 and the first shaft hole 23. Figure 2 As shown, the first bolt 26 is installed in the first bolt hole 21, the diameter of the bolt head of the first bolt 26 is larger than the diameter of the first connecting hole 22, and a screw hole is provided at the end of the second shaft 33. The first bolt 26 passes through the first connecting hole 22 and is threadedly connected to the second shaft 33, thereby fixing the fixing rod 2 and the high neck rod 3 so that the two can only rotate but cannot be separated. In order to prevent the second bolt 45 and the first bolt 26 from coming out, the part of the second bolt 45 located in the second connecting hole 42 and the part of the first bolt 26 located in the first connecting hole 22 are not provided with threads to reduce friction during rotation.

[0046] like Figure 5 As shown, one end of the fixing rod 2 having the insertion hole 25 is also provided with a limiting flange 27. The limiting flange 27 can cooperate with the fastening sleeve 5 to limit the position of the fastening sleeve 5.

[0047] like Figure 1 As shown, the fixing rod 2 is provided with a positioning hole 20, the direction of the positioning hole 20 is perpendicular to the direction of the insertion hole 25, the positioning hole 20 is communicated with the insertion hole 25, and the wrench handle 1 is provided with a through hole corresponding to the positioning hole 20, and a positioning pin 24 is installed in the positioning hole 20, and one end of the positioning pin 24 can be threadedly connected with the fixing rod 2. When storing, the positioning pin 24 can be taken out with a screwdriver, and the fixing rod 2 and the wrench handle 1 can be separated to reduce the storage volume. The positioning pin 24 can have a thread only at one end, and the surface of the rest of the part is smooth, so that the wrench handle 1 and the fixing rod 2 can be locked firmly and the time for disassembly can be saved.

[0048] In order to achieve the goal of using one wrench to remove bolts of different sizes, such as Fig. 9 As shown, the side of the fastening sleeve 5 is provided with a guide rail 52 along the length direction of the fastening sleeve 5, and the guide rail 52 is located on the side wall between the first strip hole 50 and the second strip hole 51. The cross-section of the guide rail 52 can be an isosceles trapezoid, and its upper base is connected to the fastening sleeve 5. A trapezoidal groove 44 is provided on the connecting seat 46, and the cross-sectional shape of the trapezoidal groove 44 is the same as that of the guide rail 52. The trapezoidal groove 44 can be slidably matched with the guide rail 52, and a limit block 53 that can prevent the connecting seat 46 from sliding along the guide rail 52 is provided on one side of the guide rail 52. A wrench can be equipped with multiple adjustment parts 4 of different sizes, and the size of the wrench head of each adjustment part 4 is different. Multiple adjustment parts 4 can be hung on one side of the fastening sleeve 5 through the cooperation of the trapezoidal groove 44 and the guide rail 52. The guide rail 52 can also play the role of a reinforcing rib to increase the strength of the fastening sleeve 5.

[0049] like Figure 2As shown, the angles of the first angle a, the second angle b or the third angle c are 45 degrees or 55 degrees.

[0050] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A double-ended box spanner, comprising a spanner handle (1), wherein the outer end of the spanner handle (1) is provided with a first box spanner head (10), characterized in that: It also comprises a fixed rod (2), a high neck rod (3) and an adjusting portion (4), wherein two ends of the high neck rod (3) are respectively hinged to the fixed rod (2) and the adjusting portion (4); One end of the fixing rod (2) is provided with an axial insertion hole (25), the insertion hole (25) is plugged into the inner end of the wrench handle (1), the other end of the fixing rod (2) is provided with a fixing rod inclined surface (28), the angle between the fixing rod inclined surface (28) and the length direction of the fixing rod (2) is a first angle (a), and a first axial hole (23) is provided at the fixing rod inclined surface (28); the two ends of the high neck rod (3) are respectively provided with a first inclined surface (31) and a second inclined surface (32), the first inclined surface (31) and the second inclined surface (32) are parallel, the angle between the first inclined surface (31) and the length direction of the high neck rod (3) is a second angle (b), the first inclined surface (31) is provided with a first axis (30), and the second inclined surface (32) is provided with a second axis (33); the adjustment part ( 4) It is composed of a connecting seat (46) and a second box spanner head (40), one end of the connecting seat (46) is connected to the second box spanner head (40), and the other end of the connecting seat (46) is provided with an adjusting head inclined surface (47), the angle between the adjusting head inclined surface (47) and the plane where the second box spanner head (40) is located is a third angle (c), and a second shaft hole (43) is provided at the adjusting head inclined surface (47); the fixing rod inclined surface (28) cooperates with the second inclined surface (32), the first inclined surface (31) cooperates with the adjusting head inclined surface (47), the first shaft (30) cooperates with the second shaft hole (43), and the second shaft (33) cooperates with the first shaft hole (23); the first angle (a), the second angle (b) and the third angle (c) are equal and are all acute angles; A fastening sleeve (5) is installed on the outer periphery of the high neck rod (3), and the fastening sleeve (5) can slide axially along the high neck rod (3); a first strip hole (50) is provided on the side of the fastening sleeve (5) corresponding to the first inclined surface (31), and a second strip hole (51) is provided on the side of the fastening sleeve (5) corresponding to the second inclined surface (32); the first strip hole (50) and the second strip hole (51) are respectively located at two ends of the fastening sleeve (5); and the length of the fastening sleeve (5) can simultaneously match the adjusting head inclined surface (47), the first inclined surface (31), the second inclined surface (32) and the fixing rod inclined surface (28).

2. The double-ended box wrench according to claim 1, characterized in that: The connecting seat (46) is provided with a second bolt hole (41) and a second connecting hole (42), the second connecting hole (42) is connected to the second bolt hole (41) and the second shaft hole (43), the diameter of the second connecting hole (42) is smaller than the diameters of the second bolt hole (41) and the second shaft hole (43), a second bolt (45) is installed in the second bolt hole (41), the diameter of the bolt head of the second bolt (45) is larger than the diameter of the second connecting hole (42), a screw hole is provided at the end of the first shaft (30), the second bolt (45) passes through the second connecting hole (42) and is threadedly connected to the first shaft (30) The fixing rod (2) is provided with a first bolt hole (21) and a first connecting hole (22), the first connecting hole (22) is connected to the first bolt hole (21) and the first shaft hole (23), the diameter of the first connecting hole (22) is smaller than the diameters of the first bolt hole (21) and the first shaft hole (23), a first bolt (26) is installed in the first bolt hole (21), the diameter of the bolt head of the first bolt (26) is larger than the diameter of the first connecting hole (22), a screw hole is provided at the end of the second shaft (33), the first bolt (26) passes through the first connecting hole (22) and is threadedly connected to the second shaft (33).

3. The double-ended box spanner according to claim 2, characterized in that: The portion of the second bolt (45) located in the second connection hole (42) is not provided with threads; and the portion of the first bolt (26) located in the first connection hole (22) is not provided with threads.

4. The double-ended box spanner according to claim 1, characterized in that: One end of the fixing rod (2) provided with the insertion hole (25) is provided with a limiting flange (27), and the limiting flange (27) can cooperate with the fastening sleeve (5).

5. The double-ended box wrench according to claim 1, characterized in that: The fixing rod (2) is provided with a positioning hole (20), the direction of the positioning hole (20) is perpendicular to the direction of the insertion hole (25), the positioning hole (20) is communicated with the insertion hole (25), the lever handle (1) is provided with a through hole corresponding to the positioning hole (20), a positioning pin (24) is installed in the positioning hole (20), and one end of the positioning pin (24) is threadedly connected to the fixing rod (2).

6. The double-ended box spanner according to claim 2, characterized in that: A guide rail (52) is provided on the side of the fastening sleeve (5) along the length direction of the fastening sleeve (5), the guide rail (52) being located on the side wall between the first strip hole (50) and the second strip hole (51), the cross section of the guide rail (52) being an isosceles trapezoid, the upper base of which is connected to the fastening sleeve (5); a trapezoidal groove (44) is provided on the connecting seat (46), the cross section of the trapezoidal groove (44) being the same as that of the guide rail (52), the trapezoidal groove (44) being able to slide with the guide rail (52), and a stop block (53) being able to prevent the connecting seat (46) from sliding along the guide rail (52) is provided on one side of the guide rail (52).

7. The double-ended box spanner according to claim 1, characterized in that: The first angle (a), the second angle (b) or the third angle (c) is 45 degrees or 55 degrees.

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