Vertical shaft wrench

Abstract

The utility model discloses a vertical shaft wrench which comprises a sleeve shell piece, a transmission piece, a grip and a screwdriver bit, the sleeve shell piece comprises an outer sleeve shell and an outer sleeve, the outer sleeve is hinged to the outer sleeve shell, a positioning protruding block is arranged on the outer sleeve, and a positioning plate is arranged on the outer sleeve shell; the transmission part is arranged on the inner side of the outer sleeve shell, the two ends of the transmission part are connected with an input shaft and an output shaft respectively, the transmission part is used for transmission between the two vertical shafts, and clamping grooves corresponding to the positioning protruding blocks are formed in the input shaft. The grip is connected to the inner side of the outer sleeve in a sliding mode, a spring is connected between the grip and the outer sleeve in an abutting mode, and a tetragonal prism is arranged at one end of the grip. Through the cooperation of the sleeve shell piece and the transmission piece, the mode that the grip is swung to drive the screwdriver head to rotate is switched into the mode that the grip rotates relative to the grip with the axis of the grip as the axis and the screwdriver head is driven to rotate under the transmission of the transmission piece, so that the screwdriver is suitable for bolt mounting and dismounting in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of installation tools, in particular to a vertical axis wrench. Background Art

[0002] In the installation and disassembly of mechanical equipment, a wrench is often used to disassemble and assemble bolts. For example, Chinese Patent 202320029943.1 discloses an assembled maintenance wrench, including a handle, an assembly disk and a restraining device. The assembly disk is fixedly connected to the surface of the handle, and a screwdriver bit is inserted into the inner wall of the assembly disk. The sleeve-shaped screwdriver bit is sleeved on the bolt head, or the hexagonal columnar screwdriver bit is inserted into the bolt head, and then the handle of the wrench is held with the screwdriver bit as the axis, the handle is swung, and the screwdriver bit is rotated to loosen or tighten the bolt.

[0003] In the above prior art, during the installation of mechanical equipment, there are some situations where the space of the bolt installation position is limited. The installation position is relatively narrow, and there is no sufficient swing space for the wrench handle, which makes it inconvenient to control the screwdriver bit to rotate the bolt. Based on this, how to operate the wrench in a narrow space to drive the screwdriver bit to rotate is a technical problem that needs to be solved. Utility Model Content

[0004] The utility model aims to overcome the above technical deficiencies and proposes a vertical axis wrench to solve the technical problem of how to operate the wrench in a narrow space to drive the screwdriver to rotate in the prior art.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a vertical axis wrench, comprising:

[0007] The casing member comprises an outer casing and an outer sleeve, wherein the outer sleeve is hinged to the outer casing, a positioning protrusion is provided on the outer sleeve, and a positioning plate is provided on the outer casing;

[0008] A transmission member, which is arranged inside the outer shell and has an input shaft and an output shaft connected to both ends respectively, and is used for transmission between two vertical shafts, wherein a slot corresponding to the positioning protrusion is provided on the input shaft;

[0009] A handle, which is slidably connected to the inner side of the outer sleeve and abutted against the outer sleeve by a spring, a square column is arranged at one end of the handle, and a square hole matching the square column is opened on the input shaft and the positioning plate; and

[0010] A screwdriver bit is arranged on the output shaft.

[0011] In some embodiments, the square hole is provided at the shaft end of the input shaft and the plate surface of the positioning plate, and the angle between the two square holes is 90°; when the input shaft is coaxial with the handle 3, the square column is plugged into the square hole on the input shaft, limiting the angle between the outer sleeve and the outer shell to 0°; when the input shaft rotates with the outer shell to form an angle of 90° with the handle, the square column is plugged into the square hole on the positioning plate 1101, limiting the angle between the outer sleeve and the outer shell to 90°.

[0012] In some embodiments, the transmission member includes a turbine and a worm, both of which are rotatably connected to the inner side of the outer shell, and the turbine is meshed with the worm, and the input shaft is coaxially connected to the worm, and the output shaft is coaxially connected to the turbine.

[0013] In some embodiments, the positioning protrusion is square, and the slot is provided on the end face of the input shaft; when the input shaft rotates with the outer shell to form a 90° angle with the handle, the positioning protrusion is plugged into the slot to limit the rotation of the worm.

[0014] In some embodiments, the handle is provided with an outer convex edge, one end of the spring abuts against one side of the outer convex edge, and the other end abuts against the inner wall of the outer sleeve, and the handle is slidably connected to the outer sleeve and passes through both ends of the outer sleeve.

[0015] In some embodiments, one end of the worm away from the handle passes through the outer shell and extends to the outside of the outer shell.

[0016] In some embodiments, a through hole is formed at one end of the handle away from the housing and perpendicular to the axis of the handle, and an extension rod is inserted into the through hole.

[0017] In some embodiments, the handle is provided with an anti-slip layer.

[0018] In some embodiments, the screwdriver bit is in the shape of a regular hexagon.

[0019] In some embodiments, a hexagonal groove is formed on the bit.

[0020] Compared with the prior art, the vertical axis wrench provided by the utility model switches the mode of rotating the bit by swinging the handle to a mode of rotating the handle around its own axis, and driving the bit to rotate under the transmission of the transmission part, through the cooperation of the shell part and the transmission part, so as to adapt to the installation and removal of bolts in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural diagram of a vertical axis wrench provided by an embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional exploded view of the vertical axis wrench provided by the embodiment of the utility model;

[0023] Figure 3 is another three-dimensional exploded view of the vertical axis wrench provided by an embodiment of the utility model;

[0024] Figure 4 It is a top view diagram of the vertical axis wrench provided by the embodiment of the utility model;

[0025] Figure 5 It is a top view diagram of the vertical axis wrench provided by the embodiment of the utility model rotated 90 degrees;

[0026] Figure 6 It is a three-dimensional structural diagram of a vertical axis wrench provided by an embodiment of the utility model rotated ninety degrees;

[0027] Figure 7 It is a top view of the vertical axis wrench provided by the embodiment of the utility model with an extension rod installed;

[0028] Figure 8 It is a schematic diagram of a narrow space of a vertical axis wrench provided by an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. Shell member; 11. Outer shell; 12. Outer sleeve; 1101. Positioning plate; 1201. Positioning protrusion;

[0031] 2. Transmission member; 21. Turbine; 22. Worm; 201. Input shaft; 2011. Slot; 202. Output shaft;

[0032] 3. handle; 301. spring; 302. square column; 303. outer convex edge;

[0033] 4. Square hole;

[0034] 5. Batch bit;

[0035] 6. Extension rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] In order to solve the technical problem of how to operate a wrench in a narrow space to drive a screwdriver bit to rotate, the utility model provides a vertical axis wrench, which can realize the operation of the wrench in a narrow space to drive the screwdriver bit to rotate.

[0038] It should be noted that the vertical axis wrench described in the utility model is used for but not limited to bolt installation in a narrow space. For the convenience of explanation, in the utility model, only the application of the vertical axis wrench to bolt installation in a narrow space is taken as an example for explanation. The principle of applying the vertical axis wrench to bolt installation in other positions is essentially the same as the principle applied to bolt installation in a narrow space, and will not be elaborated here.

[0039] See also Figure 1-3 In this embodiment, a vertical axis wrench includes a housing member 1, a transmission member 2, a grip 3 and a screwdriver bit 5. The housing member 1 includes an outer shell 11 and an outer sleeve 12. The outer sleeve 12 is hinged to the outer shell 11. A positioning protrusion 1201 is provided on the outer sleeve 12, and a positioning plate 1101 is provided on the outer shell 11; the transmission member 2 is arranged on the inner side of the outer shell 11, and an input shaft 201 and an output shaft 202 are respectively connected at both ends for transmission between two vertical shafts. A slot 2011 corresponding to the positioning protrusion 1201 is provided on the input shaft 201. When the outer shell 11 rotates relative to the outer sleeve 12, the positioning protrusion 1201 can be plugged into the slot 2011 to form a limit on the rotation of the input shaft 201, thereby limiting the transmission of the transmission member 2; The handle 3 is slidably connected to the inner side of the outer sleeve 12, and a spring 301 is abutted between the outer sleeve 12 for elastically pushing the grip 3 to extend to the right, and a square column 302 is provided at the right end of the grip 3. The input shaft 201 and the positioning plate 1101 are both provided with a square hole 4 matching the square column 302. When the square column 302 is plugged into the square hole 4 on the input shaft 201, transmission can be formed. Rotating the grip 3 can drive the input shaft 201 to rotate. When the input shaft 201 rotates, the transmission member 2 is used for transmission, which can drive the output shaft 202 to rotate. The screwdriver bit 5 is arranged on the output shaft 202. In a narrow space, there is no need to swing the grip. Only the grip 3 can be rotated on its axis to drive the screwdriver bit 5 to rotate under the transmission of the transmission member 2.

[0040] In this embodiment, when the square column 302 is plugged into the square hole 4 on the input shaft 201, the handle 3 is rotated, and the square column 302 drives the input shaft 201 to rotate. Under the transmission of the transmission member 2, the output shaft 202 perpendicular to the input shaft 201 is driven to rotate, thereby driving the screwdriver bit 5 on the output shaft 202 to rotate, and then rotating the bolt. When the square column 302 is inserted into the square hole 4 on the positioning plate 1101, and the positioning protrusion 1201 is plugged into the card slot 2011, the relative position between the outer shell 11 and the outer sleeve 12 is positioned, and the input shaft 201 is restricted from rotating, then the handle 3 can be swung to drive the screwdriver bit 5 to rotate.

[0041] It can be understood that, compared with the conventional method of swinging the handle 3 to rotate the bit 5, the bit 5 is driven to rotate by rotating the handle 3 under the transmission of the transmission member 2, which can facilitate the rotation of the bit 5 in a narrow space.

[0042] Furthermore, in order to switch the rotation axis direction of the handle 3 during use to adapt to different usage scenarios, the square hole 4 is provided at the shaft end of the input shaft 201 and the plate surface of the positioning plate 1101, and the angle between the two square holes 4 is ninety degrees; when the input shaft 201 is coaxial with the handle 3, refer to Figure 4 The square column 302 is plugged into the square hole 4 on the input shaft 201, limiting the angle between the outer sleeve 12 and the outer shell 11 to 0°. This is suitable for narrow bolt installation scenarios. The screwdriver bit is rotated by rotating the handle 3. When the input shaft 201 rotates with the outer shell 11 to form an angle of 90° with the handle 3, refer to Figure 5 The square column 302 is plugged into the square hole 4 on the positioning plate 1101, limiting the angle between the outer sleeve 12 and the outer shell 11 to 90°, and the positioning protrusion 1201 is plugged into the slot 2011 to limit the rotation of the input shaft 201, thereby limiting the rotation of the screwdriver bit 5 relative to the handle 3. This is suitable for a more spacious bolt installation scenario, and the screwdriver bit 5 is driven to rotate by swinging the handle 3.

[0043] It can be understood that the spring 301 is supported between the handle 3 and the outer sleeve 12 to provide elastic thrust, so that the square column 302 is inserted into the corresponding square hole 4. When the outer sleeve 12 is pinched and the handle 3 is pulled back, the square column 302 can be withdrawn and separated from the corresponding square hole 4, thereby releasing the restriction on the hinge between the outer shell 11 and the outer sleeve 12, so that the two can rotate relative to each other to switch the angular position of 0° and 90°.

[0044] Among them, see Figure 3 and Figure 4 In order to achieve the elastic pushing effect of the spring 301, an outer convex edge 303 is provided on the handle 3, one end of the spring 301 abuts against one side of the outer convex edge 303, and the other end abuts against the inner wall of the outer sleeve 12. The handle 3 is slidably connected to the outer sleeve 12 and passes through the two ends of the outer sleeve 12. The elastic push of the spring 301 acts on the outer convex edge 303, so that the handle 3 and the square column 302 are pushed to the right.

[0045] It can be understood that the two ends of the spring 301 can also be directly fixedly connected to the outer protrusion 303 and the inner wall of the outer sleeve 12, so as to elastically push the square column 302 to pass through the right end of the outer sleeve 12 and plug into the corresponding square hole 4.

[0046] In one embodiment, see Figure 3 In order to transmit the staggered axes, the transmission member 2 includes a turbine 21 and a worm 22. Both the turbine 21 and the worm 22 are rotatably connected to the inner side of the outer shell 11, and the turbine 21 is meshed with the worm 22. The input shaft 201 is coaxially connected to the worm 22, and the output shaft 202 is coaxially connected to the turbine 21. By rotating the input shaft 201, the turbine 21 is driven to rotate under the meshing transmission of the turbine 21 and the worm 22, and the turbine 21 drives the output shaft 202 to rotate.

[0047] It can be understood that the transmission member 2 can also adopt a set of bevel gears to mesh to transmit the shaft that is perpendicular to the axis at 90 degrees.

[0048] In one embodiment, see Figure 4 and Figure 5 In order to lock the transmission member 2 to limit its transmission when switching to the swing handle 3 to rotate the bit 5, the positioning protrusion 1201 is square, and the slot 2011 is opened on the end face of the input shaft 201; when the input shaft 201 rotates with the outer shell 11 to form an angle of 90° with the handle 3, the positioning protrusion 1201 is plugged into the slot 2011 to limit the rotation of the worm 22, thereby limiting the transmission of the transmission member 2.

[0049] It can be understood that the slot 2011 is provided on the end face of the input shaft 201 and is connected to the outer side face of the input shaft 201 , so that during the rotation process, the positioning protrusion 1201 can be embedded to form a plug-in limit.

[0050] In one embodiment, see Figure 7 In order to facilitate the adjustment of the direction of the slot 2011 so that it faces the positioning protrusion 1201 when the position of the outer shell 11 is switched, the end of the worm 22 away from the handle 3 passes through the outer shell 11 and extends to the outside of the outer shell 11. By rotating the part of the worm 22 extending out of the outer shell 11, the worm 22 can be rotated to adjust the direction of the slot 2011 on the input shaft 201.

[0051] In one embodiment, see Figure 7 and Figure 8 In order to facilitate the rotation of the handle 3, a through hole is opened at one end of the handle 3 away from the shell 1 and perpendicular to the axis of the handle 3. An extension rod 6 is inserted into the through hole, and the handle 3 is rotated by grasping the extension rod 6.

[0052] In one embodiment, in order to avoid slipping, an anti-slip layer is provided on the handle 3.

[0053] In one embodiment, in order to install and remove the hexagon socket bolt, the bit 5 is in a regular hexagonal shape and can be inserted into the head of the hexagon socket bolt.

[0054] In one embodiment, in order to install and remove the hexagonal bolt, the bit 5 is provided with a hexagonal groove, which can be fitted onto the head of the hexagonal bolt.

[0055] In order to better understand the present invention, the following Figures 1 to 8 The technical solution of the utility model is described in detail: when the square column 302 is plugged into the square hole 4 on the input shaft 201, the handle 3 is directly rotated based on the axis of the handle 3, so that the screwdriver bit 5 can be driven to rotate under the transmission of the square column 302, the input shaft 201, the worm 22, the turbine 21 and the output shaft 202, which can be used for bolt installation in a narrow space; if you want to switch to the conventional wrench mode, pull the handle 3 to remove the square column 302 from the square hole 4 of the input shaft 201, rotate the outer shell 11 until the positioning protrusion 1201 is plugged into the slot 2011, and pull the handle 3 to telescopically insert the square column 302 into the square hole 4 on the positioning plate 1101 to form a limit, then it can be used as a conventional wrench, hold the handle 3 and swing the handle 3 around the axis of the screwdriver bit 5 to drive the screwdriver bit 5 to rotate.

[0056] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A vertical axis wrench, characterized in that: include: The casing member comprises an outer casing and an outer sleeve, wherein the outer sleeve is hinged to the outer casing, a positioning protrusion is provided on the outer sleeve, and a positioning plate is provided on the outer casing; A transmission member, which is arranged inside the outer shell and has an input shaft and an output shaft connected to both ends respectively, and is used for transmission between two vertical shafts, wherein a slot corresponding to the positioning protrusion is provided on the input shaft; A handle, which is slidably connected to the inner side of the outer sleeve and abutted against the outer sleeve by a spring, a square column is arranged at one end of the handle, and a square hole matching the square column is opened on the input shaft and the positioning plate; and A screwdriver bit is arranged on the output shaft.

2. The vertical axis wrench according to claim 1, characterized in that: The square hole is arranged at the shaft end of the input shaft and the plate surface of the positioning plate, and the angle between the two square holes is 90°; when the input shaft is coaxial with the handle, the square column is plugged into the square hole on the input shaft, limiting the angle between the outer sleeve and the outer shell to 0°; when the input shaft rotates with the outer shell to form an angle of 90° with the handle, the square column is plugged into the square hole on the positioning plate, limiting the angle between the outer sleeve and the outer shell to 90°.

3. The vertical axis wrench according to claim 2, characterized in that: The transmission member includes a turbine and a worm, both of which are rotatably connected to the inner side of the outer shell, and the turbine is meshed with the worm, and the input shaft is coaxially connected to the worm, and the output shaft is coaxially connected to the turbine.

4. The vertical axis wrench according to claim 3, characterized in that: The positioning protrusion is square, and the slot is provided on the end surface of the input shaft; when the input shaft rotates with the outer shell to form an angle of 90° with the handle, the positioning protrusion is plugged into the slot to limit the rotation of the worm.

5. The vertical axis wrench according to claim 4, characterized in that: An outer convex edge is arranged on the handle, one end of the spring abuts against one side of the outer convex edge, and the other end abuts against the inner wall of the outer sleeve. The handle is slidably connected to the outer sleeve and passes through both ends of the outer sleeve.

6. The vertical axis wrench according to claim 5, characterized in that: One end of the worm away from the handle penetrates the outer shell and extends to the outside of the outer shell.

7. The vertical axis wrench according to claim 6, characterized in that: A through hole is provided at one end of the handle away from the casing and perpendicular to the axis of the handle, and an extension rod is inserted into the through hole.

8. The vertical axis wrench according to claim 7, characterized in that: An anti-slip layer is arranged on the handle.

9. The vertical axis wrench according to claim 8, characterized in that: The screwdriver bit is in a regular hexagonal shape.

10. The vertical axis wrench according to claim 9, characterized in that: The screwdriver bit is provided with a hexagonal groove.

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