Size-adjustable wrench clamp special for PG lock nut

Abstract

The utility model discloses a size-adjustable special wrench clamp for a PG lock nut, which comprises a first clamp rod and a second clamp rod which are arranged in a vertically crossed manner, a rotating shaft is arranged at the crossed joint of the first clamp rod and the second clamp rod, and rotation of the first clamp rod and the second clamp rod is realized through the rotating shaft. Therefore, the purpose of clamping and rotating the PG lock nuts with different sizes is achieved; the top of the first forceps rod is in lap joint with the outer side of the top of the second forceps rod, and an annular clamping space is formed in the upper areas of the first forceps rod and the second forceps rod. The overall design of the wrench clamp is extremely light, small and exquisite, operation and maintenance personnel can carry the wrench clamp conveniently, the wrench clamp can be operated easily and freely even in the environment with limited space such as the bottom of a fan tower and the upper portion of the fan tower, the workload of the operation and maintenance personnel is greatly relieved, meanwhile, the wrench clamp has the function of being adjustable in size, and the wrench clamp is convenient to use. And PG lock nuts with different sizes can be easily handled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spanner, specifically relates to a PG lock nut special spanner wrench with adjustable size. BACKGROUND

[0002] At present, in the maintenance operation of the fan tower bottom and the tower, there are a large number of PG lock nuts with different sizes. These lock nuts, as key connecting components, play an important role in the stable operation of the fan. However, in the actual operation and maintenance process, the operation and maintenance personnel often encounter many inconveniences in using tools.

[0003] Traditionally, the operation and maintenance personnel will use a movable spanner or a fixed-size open-end spanner to operate these lock nuts. However, such tools often appear to be inadequate when dealing with lock nuts of different sizes, not only the operation efficiency is low, but also the lock nuts are easily damaged. In addition, considering the complex spatial layout inside the fan and the dense arrangement of equipment components, the operation and maintenance personnel often face the risk of tool falling during operation, which not only may damage the tool, but also may endanger the safety of the operation and maintenance personnel.

[0004] More difficultly, due to the narrow space inside the fan, it is also very inconvenient for the operation and maintenance personnel to carry tools. They need to move flexibly in the limited space, while also need to ensure that the tools carried will not be damaged due to collision. Such inconveniences not only increase the difficulty of operation and maintenance work, but also greatly increase the safety risk. INVENTION CONTENTS

[0005] The utility model aims at providing a PG lock nut special spanner wrench with adjustable size to solve the problem of inconvenience in operation of the current spanner on lock nuts of different sizes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a PG lock nut special spanner wrench with adjustable size, comprising two first levers and second levers arranged in an upper and lower cross manner, a rotating shaft is arranged at the cross connection of the first lever and the second lever, the rotating shaft is used to realize the rotation of the first lever and the second lever, so as to achieve the purpose of clamping and rotating the PG lock nut of different sizes; the top of the first lever is overlapped outside the top of the second lever, and an annular clamping space is formed in the upper region of the two, the annular space can ensure that the PG lock nut will not fall off during locking and subsequent operation; arc-shaped protrusions are formed in the interiors of the first lever and the second lever, the arc-shaped protrusions are in close contact with the PG lock nut, which ensures normal rotation, and the structure of the arc-shaped protrusions can reduce the indentation on the surface of the PG lock nut, avoiding great influence on the appearance of the PG lock nut.

[0007] Preferably, the bottom region of the first and second clamping levers is sleeved with an insulating sleeve, which can improve the safety of operation, and the overall length of the first clamping lever is greater than that of the second clamping lever, so that the top of the first clamping lever can be overlapped on the top of the second clamping lever.

[0008] Preferably, the first and second clamping levers are further provided with a functional assembly at the bottom of the clamping space of the first and second clamping levers, which can limit the first and second clamping levers to prevent them from being unfolded and affecting the use.

[0009] Preferably, the functional assembly is composed of two half-ring sleeves and a connecting portion connecting the two sleeves, and the two sleeves are sleeved on the first and second clamping levers respectively to limit them.

[0010] Preferably, the end of each sleeve is provided with a placing slot, and a magnetic plate is arranged in the placing slot, and the two sleeves are magnetically connected through the magnetic plate, so that the two sleeves are closed and magnetically connected through the magnetic plate, and the connecting portion is bent at this time, which can prevent the first and second clamping levers from being too close to cause clamping of the operator's palm.

[0011] Preferably, a steel wire is arranged in the connecting portion, and the two ends of the steel wire are not in contact with the sleeves, which can prevent the connecting portion from rebounding due to its own deformation after bending, thereby improving the deformability of the connecting portion.

[0012] Preferably, one of the sleeves is adhered to the outside of the first or second clamping lever to prevent the sleeve from being separated from the device, and the other sleeve is clamped on the outside of the first or second clamping lever.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The wrench clamp in the utility model is extremely light and small in overall design, which is convenient for maintenance personnel to carry, and can be easily operated in a space-limited environment such as the bottom of a fan tower and the tower, greatly reducing the work burden of maintenance personnel. Meanwhile, the wrench clamp has the function of size adjustment, which can easily cope with PG lock nuts of different sizes, and can realize precise and rapid disassembly and assembly regardless of large or small size. This design not only improves work efficiency, but also avoids potential damage to the lock nut due to mismatched tools. In addition, the device has low overall cost and high practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1The utility model discloses a structure schematic view.

[0016] Fig. 2 The utility model discloses a function assembly's expansion schematic view.

[0017] Fig. 3 The utility model discloses a function assembly's structure schematic view under closed state.

[0018] In the drawing,

[0019] 101, first clamp bar; 102, second clamp bar; 103, arc convex tooth; 104, pivot;

[0020] 200, function assembly; 201, collar; 202, connecting portion; 203, placing slot hole; 204, magnetic plate; 205, steel wire. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1 to 3 The utility model provides a kind of PG lock nut special wrenching forceps of adjustable size, including two first clamp bar 101 and second clamp bar 102 of upper and lower cross arrangement, pivot 104 is arranged in the intersection of first clamp bar 101 and second clamp bar 102, the rotation of first clamp bar 101, second clamp bar 102 is realized by pivot 104, so as to reach the purpose of clamping and rotating PG lock nut of different size;

[0023] The top of first clamp bar 101 is overlapped on the top outside of second clamp bar 102, and an annular clamping space is formed in the upper region of both, PG lock nut can be guaranteed not to appear the phenomenon of falling in being locked and subsequent operation process by annular space;The inside of first clamp bar 101 and second clamp bar 102 is formed with arc convex tooth 103, PG lock nut is tightly contacted by arc convex tooth 103, guarantees normal rotation subsequently, while the structure of arc convex tooth 103 can reduce the indentation caused to the surface of PG lock nut, avoids the appearance of PG lock nut to cause greater influence.

[0024] In the embodiment, preferably, the bottom regions of the first clamp rod 101 and the second clamp rod 102 are sleeved with insulating sleeves, and the operation safety can be improved by the insulating sleeves. The first clamp rod 101 and the second clamp rod 102 are sleeved with the insulating sleeves in a region with a length of 180 mm and a diameter of 10 mm. The overall length of the first clamp rod 101 is greater than that of the second clamp rod 102, so that the top of the first clamp rod 101 can be overlapped on the top of the second clamp rod 102.

[0025] In the embodiment, preferably, the first clamp rod 101 and the second clamp rod 102 are further provided with a functional assembly 200, which is arranged at the bottom of the clamping space of the first clamp rod 101 and the second clamp rod 102. The functional assembly 200 can limit the first clamp rod 101 and the second clamp rod 102, so that the first clamp rod 101 and the second clamp rod 102 cannot be unfolded in use.

[0026] In the embodiment, preferably, the functional assembly 200 is composed of two half-ring sleeves 201 and a connecting portion 202 connecting the two sleeves 201. The two sleeves 201 are sleeved on the first clamp rod 101 and the second clamp rod 102, respectively, so as to limit the two clamp rods.

[0027] In the embodiment, preferably, the end of each sleeve 201 is provided with a placing slot hole 203, and a magnetic plate 204 is arranged in the placing slot hole 203. The two sleeves 201 are magnetically connected by the magnetic plate 204. In normal use, the two sleeves 201 are closed and magnetically connected by the magnetic plate 204. At this time, the connecting portion 202 is bent, and the bending region can prevent the first clamp rod 101 and the second clamp rod 102 from being too close to the palm of the operator.

[0028] In the embodiment, preferably, a steel wire 205 is arranged in the connecting portion 202. The two ends of the steel wire 205 are not in contact with the sleeves 201. The arrangement of the steel wire 205 can prevent the connecting portion 202 from rebounding due to its own deformation after bending, and improve the deformability of the connecting portion 202.

[0029] In the embodiment, preferably, one of the sleeves 201 is adhered to the outside of the first clamp rod 101 or the second clamp rod 102, so that the sleeve 201 cannot be separated from the device, and the other sleeve 201 is clamped on the outside of the first clamp rod 101 or the second clamp rod 102.

[0030] Although the embodiments of the present application have been shown and described (see the detailed description above), it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A size-adjustable PG locknut special wrench, characterized in that: It comprises two first and second pliers (101, 102) arranged in cross, a rotating shaft (104) is arranged at the cross connection of the first and second pliers (101, 102); The top of the first plier (101) overlaps the outside of the top of the second plier (102), and the upper regions of the two form an annular clamping space; the interiors of the first and second pliers (101, 102) are formed with arc-shaped protruding teeth (103).

2. The adjustable size PG locknut special wrench according to claim 1, characterized in that: The bottom regions of the first and second pliers (101, 102) are sleeved with insulation sleeves, and the overall length of the first plier (101) is greater than that of the second plier (102).

3. The adjustable size PG lock nut special wrench according to claim 1, characterized in that: The first and second pliers (101, 102) are further provided with functional assemblies (200) at the bottom positions of the clamping spaces of the first and second pliers (101, 102).

4. The adjustable size PG locknut special wrench according to claim 3, characterized in that: The functional assembly (200) is composed of two half-annular sleeves (201) and a connecting portion (202) connecting the two sleeves (201), and the two sleeves (201) are sleeved on the first and second pliers (101, 102) respectively.

5. The adjustable size PG locknut special wrench according to claim 4, characterized in that: End portions of the two sleeves (201) are provided with placing grooves (203), and the interiors of the placing grooves (203) are provided with magnetic plates (204), and the two sleeves (201) are connected by the magnetic plates (204).

6. The adjustable size PG lock nut special wrench according to claim 5, characterized in that: The interiors of the connecting portions (202) are further provided with steel wires (205), and the two ends of the steel wires (205) are not in contact with the sleeves (201).

7. The adjustable size PG lock nut special wrench according to claim 5, characterized in that: One of the sleeves (201) is adhered to the outside of the first or second plier (101, 102), and the other sleeve (201) is clamped to the outside of the first or second plier (101, 102).

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