Nut Breaker

Abstract

The utility model relates to the technical field of nut crushing, and is a nut breaker, including a nut sleeve, a grip rod, a cutting blade, a driving screw, a connecting sleeve and a transmission joint. The grip rod is arranged horizontally, and the left end of the grip rod is fixedly connected with a nut sleeve. The grip rod is provided with a mounting cavity that passes through from left to right, and the mounting cavity includes a blade cavity section and a screw cavity section that are arranged in sequence from left to right. A cutting blade is inserted into the blade cavity section, and the cutting blade includes a cylindrical blade rod and a wedge-shaped blade head fixedly connected to the left end of the blade rod. The utility model has a reasonable structure. When in use, the nut sleeve is sleeved on the outside of the rusted nut, and a force rod is inserted into the connecting sleeve. The force rod is rotated to drive the driving screw to rotate. An electric wrench can also be connected to the transmission joint, and the electric wrench drives the driving screw to rotate to break the rusted nut. The entire rusted nut crushing operation is simple, convenient, easy to implement, and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of nut crushing and is a nut breaker. Background Art

[0002] In the inspection and maintenance of low-voltage electricians, nuts are often severely rusted due to rain, which leads to the nuts being stuck or stripped during the replacement process. At present, in order to deal with the nuts being stuck or stripped, the existing technology usually uses loosening agents to spray on the rusted nuts. Due to the poor permeability of the loosening agent, the nut removal operation takes a long time. In addition, severely rusted nuts need to be knocked with a hammer to loosen them, which brings difficulties to the inspection and maintenance work and reduces the inspection and maintenance efficiency. Summary of the invention

[0003] The utility model provides a nut breaker, which overcomes the deficiencies of the prior art and can effectively solve the problems of long operation time and low operation efficiency in the prior art of disassembling rusted nuts.

[0004] The technical scheme of the utility model is realized through the following measures: a nut breaker, comprising a nut sleeve, a gripping rod, a cutting blade, a driving screw, a connecting sleeve and a transmission joint, the gripping rod is arranged horizontally, the left end of the gripping rod is fixedly connected to the nut sleeve, a mounting cavity which passes through the left and right sides is arranged in the gripping rod, the mounting cavity comprises a blade cavity section and a screw cavity section which are arranged in sequence from left to right, a cutting blade is penetrated in the blade cavity section, the cutting blade comprises a cylindrical blade rod and a wedge-shaped blade head which is fixedly connected to the left end of the blade rod, a blade body through hole for the wedge-shaped blade head to pass through is provided on the nut sleeve corresponding to the position of the mounting cavity, a driving screw is threadedly connected in the screw cavity section, the left end of the driving screw is abutted against the right end of the blade rod, the right end of the driving screw is fixedly connected with a connecting sleeve and a transmission joint for connecting to an electric wrench in sequence from left to right, the central axis of the connecting sleeve is arranged in the front-back direction and the central axis of the connecting sleeve intersects with the central axis of the gripping rod, and the central axis of the transmission joint is collinear with the central axis of the gripping rod.

[0005] The following are further optimizations and / or improvements to the above utility model solution:

[0006] The transmission joint may be a hexagonal head.

[0007] A left pull rod countersunk hole may be provided on the right end face of the above-mentioned tool rod, and a right pull rod countersunk hole may be provided on the left end face of the driving screw rod corresponding to the position of the left pull rod countersunk hole. Pull rods are rotatably installed in the left pull rod countersunk hole and the right pull rod countersunk hole, and first limiting rings are respectively provided on the outer sides of the left and right ends of the pull rod, and second limiting rings are respectively provided on the right end of the inner wall of the left pull rod countersunk hole and the left end of the inner wall of the right pull rod countersunk hole, and the outer diameter of the first limiting ring is larger than the inner diameter of the second limiting ring.

[0008] The utility model has a reasonable structure. When in use, the nut sleeve is arranged on the outside of the rusted nut, a stress rod is inserted in the connecting sleeve, and the stress rod is rotated to drive the driving screw to rotate, thereby driving the screw to push the cutting knife body to move leftward, and the rusted nut is broken by the wedge-shaped knife head. The electric wrench can also be connected to the transmission joint, and the driving screw is driven by the electric wrench to rotate to break the rusted nut. The whole rusted nut crushing operation is simple, convenient, easy to implement and efficient. In addition, manual breaking and electric breaking can be adopted, and the use flexibility is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a schematic diagram of the front cross-sectional structure of the first embodiment of the utility model.

[0010] Attached Figure 2 It is a schematic diagram of the top view of the structure of the first embodiment of the utility model.

[0011] Attached Figure 3 It is a schematic diagram of the front cross-sectional structure of the second embodiment of the utility model.

[0012] Attached Figure 4 For attachment Figure 3 Enlarged structural diagram at A in the middle.

[0013] The codes in the accompanying drawings are: 1 is a nut sleeve, 2 is a grip rod, 3 is a driving screw, 4 is a connecting sleeve, 5 is a transmission joint, 6 is a tool rod, 7 is a wedge-shaped tool head, 8 is a left pull rod countersunk hole, 9 is a right pull rod countersunk hole, 10 is a pull rod, 11 is a first limit ring platform, and 12 is a second limit ring platform. DETAILED DESCRIPTION

[0014] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0015] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0016] The present invention is further described below in conjunction with the embodiments and drawings:

[0017] Embodiment 1: As shown in the attached Figure 1-2As shown, the nut breaker includes a nut sleeve 1, a grip rod 2, a cutting blade, a driving screw 3, a connecting sleeve 4 and a transmission joint 5. The grip rod 2 is arranged horizontally, and the left end of the grip rod 2 is fixedly connected to the nut sleeve 1. The grip rod 2 is provided with a mounting cavity that passes through the left and right sides. The mounting cavity includes a blade cavity section and a screw cavity section that are arranged in sequence from left to right. A cutting blade is penetrated in the blade cavity section. The cutting blade includes a cylindrical blade rod 6 and a wedge-shaped blade head 7 fixedly connected to the left end of the blade rod 6. The mounting cavity position corresponds to A through hole in the cutter body for the wedge-shaped cutter head 7 to pass through is provided on the nut sleeve 1, and a driving screw 3 is threadedly connected to the inner thread of the screw cavity section. The left end of the driving screw 3 abuts against the right end of the cutter rod 6, and the right end of the driving screw 3 is fixedly connected with a connecting sleeve 4 and a transmission joint 5 for connecting to an electric wrench from left to right. The central axis of the connecting sleeve 4 is arranged in the front-to-back direction and the central axis of the connecting sleeve 4 intersects with the central axis of the grip rod 2, and the central axis of the transmission joint 5 is collinear with the central axis of the grip rod 2.

[0018] When in use, the nut sleeve 1 is sleeved on the outside of the rusted nut, and a force-bearing rod is passed through the connecting sleeve 4. The force-bearing rod is rotated to drive the driving screw 3 to rotate, thereby driving the screw 3 to push the cutting knife body to move to the left, and the rusted nut is broken by the wedge-shaped cutter head 7. The electric wrench can also be connected to the transmission joint 5, and the driving screw 3 is driven by the electric wrench to rotate to break the rusted nut. The entire rusted nut crushing operation is simple, convenient, easy to implement and efficient. In addition, manual breaking and electric breaking can be adopted, and the use flexibility is good; specifically, the transmission joint 5 is a hexagonal head.

[0019] Embodiment 2: As shown in the attached Figure 3-4 As shown, the difference between this embodiment and embodiment one is that a left pull rod countersunk hole 8 is provided on the right end face of the tool rod 6, a right pull rod countersunk hole 9 is provided on the left end face of the driving screw rod 3 corresponding to the position of the left pull rod countersunk hole 8, pull rods are rotatably installed in the left pull rod countersunk hole and the right pull rod countersunk hole, and first limiting rings 11 are respectively provided on the outer sides of the left and right ends of the pull rods, and second limiting rings 12 are respectively provided on the right end of the inner wall of the left pull rod countersunk hole 8 and the left end of the inner wall of the right pull rod countersunk hole 9, and the outer diameter of the first limiting ring 11 is larger than the inner diameter of the second limiting ring 12. When the wedge-shaped cutter head 7 drills into the rusted nut, it will cause the rusted nut to expand outwards. Due to the limited space in the nut sleeve 1, when some large-sized rusted nuts are broken, the rusted nut expanded by the wedge-shaped cutter head 7 is easily pressed against the nut sleeve 1, making it difficult to separate the rusted nut and the nut sleeve 1. In the present application, a pull-back rod is provided, so that after the wedge-shaped cutter head 7 breaks the rusted nut, the drive screw 3 is rotated in the opposite direction to make the drive screw 3 retreat to the right. When the drive screw 3 retreats to the right, the pull-back rod pulls the cutting blade to retreat to the right, and the wedge-shaped cutter head 7 is separated from the rusted nut. The wedge-shaped cutter head 7 releases the supporting effect on the rusted nut, thereby easily separating the rusted nut and the nut sleeve 1.

[0020] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A nut breaker, characterized in that It includes a nut sleeve, a grip rod, a cutting blade, a driving screw, a connecting sleeve and a transmission joint. The grip rod is arranged horizontally, and the left end of the grip rod is fixedly connected to the nut sleeve. The grip rod is provided with a mounting cavity which passes through from left to right. The mounting cavity includes a blade cavity section and a screw cavity section which are arranged in sequence from left to right. The blade cavity section is penetrated by a cutting blade. The cutting blade includes a cylindrical blade rod and a wedge-shaped blade head which is fixedly connected to the left end of the blade rod. A blade body through hole for the wedge-shaped blade head to pass through is provided on the nut sleeve corresponding to the position of the mounting cavity. A driving screw is threadedly connected in the screw cavity section. The left end of the driving screw abuts against the right end of the blade rod. The right end of the driving screw is fixedly connected with a connecting sleeve and a transmission joint for connecting to an electric wrench in sequence from left to right. The central axis of the connecting sleeve is arranged in the front-back direction and the central axis of the connecting sleeve intersects with the central axis of the grip rod. The central axis of the transmission joint is collinear with the central axis of the grip rod.

2. The nut breaker according to claim 1, characterized in that The transmission joint is a hexagonal head.

3. The nut breaker according to claim 1 or 2, characterized in that A left pull rod countersunk hole is provided on the right end face of the tool rod, and a right pull rod countersunk hole is provided on the left end face of the driving screw rod corresponding to the position of the left pull rod countersunk hole. Pull rods are rotatably installed in the left pull rod countersunk hole and the right pull rod countersunk hole. First limiting rings are respectively provided on the outer sides of the left and right ends of the pull rod, and second limiting rings are provided on the right end of the inner wall of the left pull rod countersunk hole and the left end of the inner wall of the right pull rod countersunk hole. The outer diameter of the first limiting ring is larger than the inner diameter of the second limiting ring.

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