Tightening wrench for highly-adaptive irregular nut

Abstract

The utility model discloses a tightening wrench for high adaptation irregular nuts, which relates to the technical field of manual tools, and comprises a handle, one end of the handle is detachably connected with a connector, the handle and the connector are provided with a clamping mechanism for clamping the irregular nuts, and the clamping mechanism comprises a pressurizing component, a locking component and a locking component, comprising a threaded block fixed in an inner groove of a handle and a sleeve, the threaded block is in threaded connection with a threaded push rod, one end of the threaded push rod is fixedly provided with a screwing wheel, the other end of the threaded push rod is in sliding sealing connection with the inner wall of the sleeve, and the top of the sleeve is communicated and connected with a liquid guide pipe penetrating through a connector. The problems that nuts which are irregular in shape and variable in size are often encountered in practical application, and due to special design requirements or space limitation, the nuts are difficult to be effectively operated through a conventional wrench are solved.

Description

Technical Field

[0001] This utility model relates to the field of manual tool technology, specifically to a tightening wrench for highly adaptable irregular nuts. Background Technology

[0002] In many fields such as machinery manufacturing, automobile repair, and equipment installation, tightening and loosening nuts is an indispensable part of daily work. Traditionally, these operations mainly rely on various types of wrenches, such as adjustable wrenches, pipe wrenches, and fixed wrenches.

[0003] The reference patent, titled "A Multifunctional Tightening Wrench" (Publication No. CN209831464U, Application Date 2019-03-28), includes a handle. One end of the handle has a connector. A fixed jaw is located on one side of the upper surface of the connector, and a fixed plate is located on the other side. A groove is located on the upper surface of the connector, and a slider is located inside the groove. A movable jaw is located on the upper surface of the slider. A sleeve is located on one side of the outer wall of the movable jaw, and a limit block is located inside the sleeve. The other end of a lead screw passes through a threaded hole in the fixed plate and engages with the fixed plate. A horizontal measuring scale, a first hexagonal groove, and a second hexagonal groove are located on one side of the outer wall of the handle, arranged sequentially from top to bottom. This wrench allows for easy tightening and loosening of bolts of different sizes, and prevents jamming between the movable and fixed jaws. It also meets the needs of horizontal measurement and cutting operations.

[0004] Based on the aforementioned patent, in practical applications, we often encounter nuts with irregular shapes and varying sizes. These nuts are often difficult to operate effectively with conventional wrenches due to special design requirements or space constraints. Therefore, this utility model provides a tightening wrench that is highly adaptable to irregular nuts. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a highly adaptable tightening wrench for irregular nuts, solving the problem that in practical applications, nuts with irregular shapes and varying sizes are often encountered, and these nuts are often difficult to operate effectively with conventional wrenches due to special design requirements or space limitations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-adaptability wrench for irregular nuts, comprising a handle, one end of which is detachably connected to a connector, and the handle and connector are provided with a clamping mechanism for holding the irregular nut, the clamping mechanism comprising:

[0007] The pressurization assembly is located in the inner groove of the handle and includes a threaded block and a sleeve fixed in the inner groove of the handle. A threaded push rod is threadedly connected to the threaded block, and a turning wheel is fixed at one end of the threaded push rod. The other end of the threaded push rod is slidably sealed to the inner wall of the sleeve. A liquid guide tube with a through connector is interconnected at the top of the sleeve.

[0008] The positioning component is located on the upper part of the connector head, including a positioning ring fixed to the upper part of the connector head, and a number of positioning rods are fixedly arranged on the inner wall of the positioning ring.

[0009] Preferably, the positioning rod includes an oil injection pipe fixed to the inner wall of the positioning ring, and the positioning ring has an annular cavity that communicates with the oil injection pipe, and the annular cavity is connected to the liquid guide pipe.

[0010] Preferably, the oil injection pipe has a piston rod that is slidably mounted on the end away from the inner wall of the positioning ring, and a protrusion is fixed at the end of the piston rod.

[0011] Preferably, guide rods are fixed on both sides of the piston rod, and the outer wall of the oil injection pipe is provided with guide grooves for the guide rods to slide in a specific direction.

[0012] Preferably, assembly pieces are fixed on both sides of the handle, and limit rods are fixed on the assembly pieces, and the lower surface of the connector is provided with insertion holes for the limit rods to be inserted.

[0013] Preferably, a liquid filling pipe is provided on one side of the sleeve, and the assembly piece is detachably connected to the connector by an assembly bolt.

[0014] Beneficial effects

[0015] This invention provides a tightening wrench for irregular nuts that is highly adaptable. Compared with the prior art, it has the following advantages:

[0016] (1) This highly adaptable wrench for irregular nuts uses a rotating turning wheel to drive a threaded push rod to move on a threaded block. Since the other end of the threaded push rod is threadedly connected to the sleeve, as the turning wheel rotates, the threaded push rod will gradually squeeze the internal space of the sleeve and inject oil into the inner cavity of the positioning ring through the oil injection pipe. Then, the oil enters the interior of each positioning rod through the oil injection pipe. Inside the oil injection pipe, the piston rod is subjected to liquid pressure and slides along the inner wall of the oil injection pipe. The protrusion at the end of the piston rod contacts the surface of the irregular nut and fits tightly against the nut surface under the action of liquid pressure, thus clamping the nut. It can also achieve multi-point stable clamping for nuts with irregular shapes and varying sizes, improving the adaptability of the wrench.

[0017] (2) The high-adaptability irregular nut tightening wrench has assembly plates and limit rods on both sides of the handle, and insertion holes on the lower surface of the connector. When it is necessary to assemble the handle and the connector, simply insert the limit rod into the insertion hole and connect the assembly plate and the connector with the thread by the assembly bolt. This detachable connection structure not only facilitates the assembly and disassembly of the wrench, but also facilitates the maintenance and replacement of the various parts of the wrench. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram showing the disassembled handle of this utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembled connector of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning rod structure of this utility model.

[0022] In the diagram: 1-Handle, 2-Connector, 3-Clamping mechanism, 31-Pressure assembly, 311-Threaded block, 312-Threaded push rod, 313-Turning wheel, 314-Sleeve, 315-Liquid guide tube, 32-Positioning assembly, 321-Positioning ring, 322-Positioning rod, 4-Oil injection pipe, 5-Piston rod, 6-Protrusion, 7-Guide rod, 8-Guide groove, 9-Liquid injection pipe, 10-Assembly piece, 11-Limit rod, 12-Assembly bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a high-adaptability tightening wrench for irregular nuts, including a handle 1, one end of which is detachably connected to a connector 2. The handle 1 and the connector 2 are provided with a clamping mechanism 3 for clamping irregular nuts. The clamping mechanism 3 includes: a pressure component 31, which is disposed in the inner groove of the handle 1, including a threaded block 311 fixed in the inner groove of the handle 1 and a sleeve 314. A threaded push rod 312 is threadedly connected to the threaded block 311, and a turning wheel 313 is fixed to one end of the threaded push rod 312. The other end of the threaded push rod 312 is slidably and sealed to the inner wall of the sleeve 314. A liquid guide tube 315 that passes through the connector 2 is interconnected to the top of the sleeve 314; and a positioning component 32, which is disposed on the upper part of the connector 2, including a positioning ring 321 fixed to the upper part of the connector 2. Several sets of positioning rods 322 are fixedly disposed on the annular inner wall of the positioning ring 321.

[0025] In this embodiment, the positioning rod 322 includes an oil injection pipe 4 fixed to the inner wall of the positioning ring 321. The positioning ring 321 has an annular cavity that communicates with the oil injection pipe 4 and is connected to the liquid guide pipe 315. A piston rod 5 is slidably mounted on the oil injection pipe 4 at the end away from the inner wall of the positioning ring 321, and a protrusion 6 is fixed at the end of the piston rod 5. Inside the oil injection pipe 4, the piston rod 5 is subjected to liquid pressure and slides along the inner wall of the oil injection pipe 4. The protrusion 6 at the end of the piston rod 5 contacts the surface of the irregular nut and fits tightly against the surface of the nut under the action of liquid pressure, thereby clamping the nut. The inner wall of the pipe through which the oil flows is provided with a sealing ring to ensure that the oil does not leak.

[0026] In this embodiment, guide rods 7 are fixed on both sides of the piston rod 5, and guide grooves 8 are provided on the outer wall of the oil injection pipe 4 for the guide rods 7 to slide in a direction; this ensures the stability and directionality of the piston rod 5 during the extension and retraction process, and avoids the piston rod 5 from deflection or shaking during the force process.

[0027] In this embodiment, assembly pieces 10 are fixed on both sides of the handle 1, and a limiting rod 11 is fixed on the assembly piece 10. The lower surface of the connector 2 is provided with a socket for the limiting rod 11 to be inserted. A liquid filling tube 9 is provided on one side of the sleeve 314. The assembly piece 10 is detachably connected to the connector 2 by an assembly bolt 12. The assembly piece 10 is detachably connected to the connector 2 by inserting the limiting rod 11 into the socket and connecting the assembly piece 10 to the connector 2 by the assembly bolt 12. This detachable connection structure not only facilitates the assembly and disassembly of the wrench.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During operation, the pressurizing component 31 is located in the inner groove of the handle 1 and mainly consists of a threaded block 311, a threaded push rod 312, a turning wheel 313, a sleeve 314, and a liquid guide tube 315. When the operator needs to clamp the nut, the threaded push rod 312 is driven to move on the threaded block 311 by rotating the turning wheel 313. Since the other end of the threaded push rod 312 is threadedly connected to the sleeve 314, the threaded push rod 312 will gradually squeeze the internal space of the sleeve 314 as the turning wheel 313 rotates, and the oil will be injected into the inner cavity of the positioning ring 321 through the oil injection pipe 4 via the liquid guide tube 315.

[0030] The positioning component 32 is located on the upper part of the connector 2 and consists of a positioning ring 321 and several sets of positioning rods 322. When the liquid inside the sleeve 314 in the pressurizing component 31 enters the annular cavity of the positioning component 32 through the liquid guide pipe 315, it then enters the interior of each positioning rod 322 through the oil injection pipe 4. Inside the oil injection pipe 4, the piston rod 5 is subjected to liquid pressure and slides along the inner wall of the oil injection pipe 4. The protrusion 6 at the end of the piston rod 5 contacts the irregular nut surface and tightly fits the nut surface under the action of liquid pressure, thereby clamping the nut. The guide rod 7 and the guide groove 8 ensure the stability and directionality of the piston rod 5 during the extension and retraction process, and prevent the piston rod 5 from deviating or shaking during the force process.

[0031] In addition, the assembly pieces 10 and the limiting rod 11 on both sides of the handle 1, as well as the insertion hole on the lower surface of the connector 2, together constitute a detachable connection structure between the handle 1 and the connector 2. When it is necessary to assemble the handle 1 and the connector 2, simply insert the limiting rod 11 into the insertion hole and thread the assembly piece 10 and the connector 2 together with the assembly bolt 12. This detachable connection structure not only facilitates the assembly and disassembly of the wrench, but also facilitates the maintenance and replacement of various parts of the wrench. The liquid filling pipe 9 on one side of the sleeve 314 is used to inject liquid into the pressure assembly 31. Before using the wrench, the operator can inject an appropriate amount of hydraulic oil into the sleeve 314 through the liquid filling pipe 9 to ensure the normal operation of the pressure assembly 31.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-adaptability wrench for tightening irregular nuts, comprising a handle (1), wherein one end of the handle (1) is detachably connected to a connector (2), characterized in that: The handle (1) and connector (2) are provided with a clamping mechanism (3) for clamping irregular nuts. The clamping mechanism (3) includes: The pressurizing component (31) is located in the inner groove of the handle (1) and includes a threaded block (311) fixed in the inner groove of the handle (1) and a sleeve (314). A threaded push rod (312) is threadedly connected to the threaded block (311), and a turning wheel (313) is fixed at one end of the threaded push rod (312). The other end of the threaded push rod (312) is slidably sealed to the inner wall of the sleeve (314). A liquid guide tube (315) that passes through the connector (2) is interconnected at the top of the sleeve (314). The positioning component (32) is located on the upper part of the connector (2) and includes a positioning ring (321) fixed on the upper part of the connector (2), and a number of positioning rods (322) are fixedly provided on the inner wall of the positioning ring (321).

2. The high-adaptability wrench for irregular nuts according to claim 1, characterized in that: The positioning rod (322) includes an oil injection pipe (4) fixed to the inner wall of the positioning ring (321). The positioning ring (321) has an annular cavity that communicates with the oil injection pipe (4) and the annular cavity is connected to the liquid guide pipe (315).

3. A high-adaptability wrench for loosening irregular nuts according to claim 2, characterized in that: The oil injection pipe (4) has a piston rod (5) that is telescopically mounted at one end away from the inner wall of the positioning ring (321), and a protrusion (6) is fixed at the end of the piston rod (5).

4. A high-adaptability wrench for loosening irregular nuts according to claim 3, characterized in that: The piston rod (5) is fixed with guide rods (7) on both sides, and the outer wall of the oil injection pipe (4) is provided with guide grooves (8) for the guide rods (7) to slide in a certain direction.

5. A high-adaptability wrench for loosening irregular nuts according to claim 1, characterized in that: The handle (1) has assembly pieces (10) fixed on both sides, and a limit rod (11) is fixed on the assembly piece (10), and the lower surface of the connector (2) is provided with a socket for the limit rod (11) to be inserted.

6. A high-adaptability wrench for loosening irregular nuts according to claim 5, characterized in that: A liquid filling pipe (9) is provided on one side of the sleeve (314), and the assembly piece (10) is detachably connected to the connector (2) by an assembly bolt (12).

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