CN110723698A - Multifunctional crowbar and use method thereof - Google Patents
Multifunctional crowbar and use method thereof Download PDFInfo
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- CN110723698A CN110723698A CN201911110729.3A CN201911110729A CN110723698A CN 110723698 A CN110723698 A CN 110723698A CN 201911110729 A CN201911110729 A CN 201911110729A CN 110723698 A CN110723698 A CN 110723698A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011258 core-shell material Substances 0.000 claims description 41
- 230000000694 effects Effects 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 5
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F15/00—Crowbars or levers
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Abstract
The invention relates to a multifunctional crowbar and a use method thereof.A flat first plug is arranged at one end of a crowbar rod, the other end of the crowbar rod is bent to form a C-shaped part, the tail end of the C-shaped part is connected with a second plug, and the second plug is provided with a gap for nail pulling; the sheath assembly is arranged on the pry bar, steps are arranged at two ends of the pry bar, a locking clamping groove is formed in the pry bar between the two steps, the sheath assembly can rotate around the pry bar and can be arranged on the pry bar between the two steps in a manner of moving up and down along the pry bar, a locking block is arranged in the sheath assembly, and when the locking block is clamped into the locking clamping groove, the sheath assembly is locked and cannot move up and down; the sheath assembly is rotated to enable the locking block to be separated from the locking clamping groove, and the sheath assembly is unlocked and can move up and down. The sheath subassembly structural design is simple reasonable, easy dismounting, can lock and use as the handle sheath on the pinch bar pole, can remove to lock the back and use as application of force instrument again for this pinch bar has multi-functionally.
Description
Technical Field
The invention relates to the field of hardware tools. In particular to a multifunctional crowbar and a using method thereof.
Background
The prying bar is a labor tool, and is a method for lifting a heavy object from the ground and displacing the heavy object by overcoming the gravity of the earth by using a lever principle and enabling the object which cannot be moved by manpower to overcome the gravity. The crowbar is a well-used construction tool and hardware tool. The existing crowbar generally comprises a crowbar rod, two ends of the crowbar rod are provided with plugs, one plug is mainly used for being inserted into a gap to be pried by a pry, the other plug is mainly used for lifting nails, and at present, when the plug is inserted into the gap, the plug can be inserted into the gap smoothly by certain force application sometimes, at the moment, the impact force is applied to the crowbar by other tools, but the crowbar is easy to deviate, and the plug cannot be inserted into the gap well, so that the existing crowbar is improved and optimized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the multifunctional crowbar which is reasonable in structural design, convenient to use and convenient for a user to apply force, and provides the using method of the crowbar.
The technical scheme adopted by the invention for solving the problems is as follows: a multifunctional crowbar comprises a crowbar rod, wherein one end of the crowbar rod is provided with a flat first plug, the other end of the crowbar rod is bent to form a C-shaped part, the tail end of the C-shaped part is connected with a second plug, and the second plug is provided with a gap for nail pulling; the method is characterized in that: the sheath assembly is arranged on the pry bar, steps are arranged at two ends of the pry bar, a locking clamping groove is formed in the pry bar between the two steps, the sheath assembly can rotate around the pry bar and is arranged on the pry bar between the two steps in a manner of moving up and down along the pry bar, a locking block is arranged in the sheath assembly, and when the locking block is clamped into the locking clamping groove, the sheath assembly is locked and cannot move up and down; the sheath assembly is rotated to enable the locking block to be separated from the locking clamping groove, and the sheath assembly is unlocked and can move up and down.
Preferably, an included angle between the first plug and the pry bar is an obtuse angle.
Preferably, the cross section of the pry rod is a regular hexagon; the locking piece sets up two: the locking device comprises a first locking block and a second locking block, wherein the two locking blocks are both provided with arc surfaces, and V-shaped protrusions are arranged on the arc surfaces of the second locking block; the sheath assembly comprises a locking inner core shell, a left half sheath and a right half sheath; the locking inner core shell is cylindrical, an axial mounting hole is formed in the center of the locking inner core shell, the shape of the cross section of the mounting hole is consistent with that of the cross section of the pry rod, a circle of first locking block guiding groove is formed in the upper end of the locking inner core shell, and the bottom surface of a half groove of the first locking block guiding groove is communicated with the mounting hole; the lower end of the locking inner core shell is provided with a circle of groove for guiding the second locking block, and a V-shaped notch is formed in the bottom surface of the groove for guiding the second locking block; a circle of positioning flange is arranged in the middle of the locking inner core shell; the whole locking inner core shell is divided into two parts along the axis direction, and the two parts are divided into a left half locking inner core shell and a right half locking inner core shell which are completely consistent in shape; the left half locking inner core shell and the right half locking inner core shell are combined together and wrapped on the pry rod, the left half sheath and the right half sheath are combined together and wrapped on the locking inner core shell, and the middle parts of the inner side walls of the left half sheath and the right half sheath are respectively provided with a semi-arc-shaped groove for clamping a positioning flange and preventing the left half sheath and the right half sheath and the locking inner core shell from moving axially relative to each other; the upper end and the lower end of the inner side wall of the left half sheath are both provided with a locking block mounting groove, a spring is arranged in the locking block mounting groove, the first locking block is mounted in the locking block mounting groove at the upper end, one end of the first locking block abuts against the spring, and the other end of the first locking block is positioned in the first locking block guiding groove; no. two locking pieces are installed in the locking piece installation groove at the lower end, one end of each locking piece abuts against the spring, and the other end of each locking piece is located in the groove for guiding the corresponding locking piece.
Preferably, the left half sheath and the right half sheath are connected together through four bolts.
Preferably, the prying rod is provided with three locking clamping grooves.
Preferably, locking inner core casing, left half sheath and right half sheath are the working of plastics, No. one the locking piece is the steel part, No. two the locking piece is the working of plastics.
Preferably, the prying rod, the first plug and the second plug are integrally formed.
Preferably, the step is welded to the lever.
The invention also provides a use method of the multifunctional crowbar, which comprises the following steps: including methods of locking the sheathing assembly to the crowbar and methods of unlocking the sheathing assembly.
In the invention, the method for locking the sheath component on the crowbar rod comprises the following steps: reciprocate the sheath subassembly, make a locking piece correspond a certain locking draw-in groove, then half left sheath and half right sheath that swivelling joint is in the same place, because locking inner core casing can not rotate around the pinch bar, the rotation of half left sheath and half right sheath drives a locking piece and No. two locking pieces rotation immediately, when a locking piece rotates the groove for the direction of that section locking piece that the tank bottom surface is empty, this moment under the effect of spring, a locking piece is promoted forward, thereby support and lean on in the locking draw-in groove, whole sheath subassembly can not reciprocate this moment.
The unlocking method of the sheath component comprises the following steps: the left half sheath and the right half sheath which are connected together are rotated to enable the first locking block to be separated from the locking clamping groove, the sheath assembly is unlocked at the moment and can move up and down, a worker holds the sheath assembly to move up and down to impact the step, and force can be applied to the plug at the end part of the crowbar rod; for when preventing the application of force, take place relative rotation between half left sheath and half right sheath and the locking inner core casing, can continue to rotate half left sheath and half right sheath after locking piece breaks away from the locking draw-in groove No. one, make the V type on the locking piece No. two block the V type breach on the tank bottom surface of recess for the direction of locking piece card, play certain anti-rotation effect, only artificially go the application of force rotation half left sheath and half right sheath this moment, under the condition of no other exogenic actions, half left sheath and half right sheath can not take place to rotate relative locking inner core casing.
Compared with the prior art, the invention has the following advantages and effects: the sheath subassembly structural design is simple reasonable, easy dismounting, can lock and use as the handle sheath on the pinch bar pole, can remove to lock the back and use as application of force instrument again for this pinch bar has multi-functionally.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic front view of an embodiment of the present invention.
Fig. 2 is a schematic top view of an embodiment of the present invention.
Fig. 3 is a front view of a pry bar according to an embodiment of the invention.
Fig. 4 is a schematic diagram of an exploded structure of a jacket assembly in an embodiment of the invention.
Fig. 5 is a perspective view of the locking core shell divided into two, a left half locking core shell and a right half locking core shell in the embodiment of the present invention.
FIG. 6 is a perspective view of the left sheath half in an embodiment of the present invention.
Fig. 7 is a perspective view of the second lock block in an embodiment of the present invention.
Description of reference numerals:
a pry bar 1; a C-shaped portion 11; a step 12; a locking card slot 13;
a first plug 2;
a second plug 3; a nail nipping notch 31;
a jacket assembly 4; a lock block 41; the first lock block 411; a second lock block 412; v-shaped protrusions 4121;
a locking core housing 42; a left half-locking core housing 421; the right half locking core shell 422; the left half sheath 43; a right sheath half 44; a first lock block guide groove 45; a V-shaped notch 46; a positioning flange 47; a semi-circular arc shaped recess 48; locking block mounting slots 49; 4-10 grooves for guiding the second locking block;
a spring 5; and a bolt 6.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
See fig. 1-7.
The embodiment discloses a multifunctional crowbar, which comprises a crowbar rod 1, wherein the cross section of the crowbar rod 1 is in a regular hexagon shape; one end of the pry bar 1 is provided with a flat first plug 2, the other end of the pry bar 1 is bent to form a C-shaped part 11, the tail end of the C-shaped part 11 is connected with a second plug 3, and the second plug 3 is provided with a notch 31 for nail pulling. The included angle between the first plug 2 and the crowbar rod 1 is an obtuse angle. The prying rod 1, the first plug 2 and the second plug 3 are integrally formed and machined.
In the embodiment, a sheath assembly 4 is mounted on a pry bar 1, steps 12 are welded at two ends of the pry bar 1, a locking clamping groove 13 is formed in the pry bar 1 between the two steps 12, the sheath assembly 4 can rotate around the pry bar 1 and is mounted on the pry bar 1 between the two steps 12 in a manner of moving up and down along the pry bar 1, a locking block 41 is arranged in the sheath assembly 4, and when the locking block 41 is clamped in the locking clamping groove 13, the sheath assembly 4 is locked and cannot move up and down; the locking block 41 can be separated from the locking clamping groove 13 by rotating the sheath assembly 4, and the sheath assembly 4 is unlocked and can move up and down.
Specifically, the lock block 41 is provided with two: first locking piece 411 and second locking piece 412, two locking pieces 41 all have the arc surface, are provided with V type on the arc surface of second locking piece 412 and protruding 4121.
The sheath assembly 4 includes a locking core housing 42, a left sheath half 43, and a right sheath half 44. Locking inner core casing 42 is cylindrical, and its center has axial mounting hole, and the cross sectional shape of this mounting hole is unanimous with the cross section of sled stick pole 1, and locking inner core casing 42's upper end sets up a locking piece for the direction recess 45 of round, and the locking piece is led to with half tank bottom face and the mounting hole of recess 45 for the direction. A circle of groove 4-10 for guiding the second locking block is formed in the lower end of the locking inner core shell 42, and a V-shaped notch 46 is formed in the bottom surface of the groove 4-10 for guiding the second locking block; a ring of positioning flanges 47 are provided in the middle of the locking core housing 42. The entire locking core housing 42 is divided into two halves in the axial direction, and divided into a left half locking core housing 421 and a right half locking core housing 422 which are completely identical in shape.
The left half locking inner core shell 421 and the right half locking inner core shell 422 are combined together and wrapped on the crowbar rod 1, the left half sheath 43 and the right half sheath 44 are combined together and wrapped on the locking inner core shell 42, and the middle parts of the inner side walls of the left half sheath 43 and the right half sheath 44 are respectively provided with a semi-circular arc-shaped groove 48 which is used for clamping a positioning flange 47 and preventing the left half sheath 43 and the right half sheath 44 and the locking inner core shell 42 from moving axially relatively. The left and right jacket halves 43 and 44 are connected together by four bolts 6.
The inside wall upper end and the lower extreme of half left sheath 43 all are provided with locking piece mounting groove 49, are provided with spring 5 in the locking piece mounting groove 49, and locking piece 411 is installed in locking piece mounting groove 49 of upper end to the one end of locking piece 411 supports and leans on spring 5, and the other end is arranged in recess 45 for the locking piece direction. The second lock block 412 is installed in the lock block installation groove 49 at the lower end, and one end of the second lock block 412 abuts against the spring 5 and the other end is located in the second lock block guide groove 4-10.
In this embodiment, be provided with three locking draw-in groove 13 on the pinch bar 1 for sheath subassembly 4 is adjustable in the position on pinch bar 1. The locking inner core shell 42, the left half sheath 43 and the right half sheath 44 are all plastic parts, the first locking block 411 is a steel part, and the second locking block 412 is a plastic part.
In the embodiment, the method for locking the sheath assembly 4 on the pry bar 1 comprises the following steps: reciprocate sheath subassembly 4, make a locking piece 411 correspond a certain locking draw-in groove 13, then swivelling joint's left half sheath 43 and right half sheath 44 together, because locking inner core casing 42 can not rotate around pry bar pole 1, the rotation of left half sheath 43 and right half sheath 44 drives a locking piece 411 and No. two locking pieces 412 and rotates immediately, when a locking piece 411 rotates to the tank bottom surface for recess 45 is used in the direction of this section of empty locking piece, at this moment under spring 5's effect, a locking piece 411 is promoted forward, thereby support and lean on in locking draw-in groove 13, whole sheath subassembly 4 can not reciprocate this moment.
In this embodiment, the method for unlocking the sheath assembly 4 includes: the left half sheath 43 and the right half sheath 44 which are connected together are rotated to separate the first locking block 411 from the locking clamping groove 13, at the moment, the sheath assembly 4 is unlocked and can move up and down, a worker holds the sheath assembly 4 by hand and can move up and down to impact the step 12, and force can be applied to the plug at the end part of the crowbar rod 1; in order to prevent the left half sheath 43, the right half sheath 44 and the locking inner core shell 42 from rotating relatively when force is applied, the left half sheath 43 and the right half sheath 44 can be rotated continuously after the first locking block 411 is separated from the locking clamping groove 13, so that the V-shaped protrusion 4121 on the second locking block 412 is clamped in the V-shaped notch 46 on the groove bottom surface of the groove 4-10 for guiding the second locking block to play a certain anti-rotation role, at the moment, only the left half sheath 43 and the right half sheath 44 are rotated by applying force manually, and under the condition of no other external force action, the left half sheath 43 and the right half sheath 44 cannot rotate relatively to the locking inner core shell 42.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A multifunctional crowbar comprises a crowbar rod (1), wherein one end of the crowbar rod (1) is provided with a flat first plug (2), the other end of the crowbar rod (1) is bent to form a C-shaped part (11), the tail end of the C-shaped part (11) is connected with a second plug (3), and the second plug (3) is provided with a gap (31) for pulling nails; the method is characterized in that: the protective sleeve is characterized in that a protective sleeve component (4) is mounted on the prying rod (1), steps (12) are arranged at two ends of the prying rod (1), a locking clamping groove (13) is formed in the prying rod (1) between the two steps (12), the protective sleeve component (4) can rotate around the prying rod (1) and is mounted on the prying rod (1) between the two steps (12) in a manner of moving up and down along the prying rod (1), a locking block (41) is arranged in the protective sleeve component (4), and when the locking block (41) is clamped into the locking clamping groove (13), the protective sleeve component (4) is locked and cannot move up and down; the locking block (41) can be separated from the locking clamping groove (13) by rotating the sheath component (4), and the sheath component (4) is unlocked and can move up and down.
2. The multi-function pry bar of claim 1, wherein: the included angle between the first plug (2) and the pry bar (1) is an obtuse angle.
3. The multi-function pry bar of claim 1, wherein: the cross section of the pry bar rod (1) is in a regular hexagon shape; the lock block (41) is provided with two: the locking device comprises a first locking block (411) and a second locking block (412), wherein the two locking blocks (41) are respectively provided with an arc surface, and a V-shaped protrusion (4121) is arranged on the arc surface of the second locking block (412);
the sheath assembly (4) comprises a locking inner core shell (42), a left half sheath (43) and a right half sheath (44); the locking inner core shell (42) is cylindrical, an axial mounting hole is formed in the center of the locking inner core shell, the shape of the cross section of the mounting hole is consistent with that of the cross section of the pry rod (1), a circle of first locking block guiding groove (45) is formed in the upper end of the locking inner core shell (42), and the bottom surface of a half groove of the first locking block guiding groove (45) is communicated with the mounting hole; a circle of groove (4-10) for guiding the second locking block is formed at the lower end of the locking inner core shell (42), and a V-shaped notch (46) is formed in the bottom surface of the groove (4-10) for guiding the second locking block; a circle of positioning flange (47) is arranged in the middle of the locking inner core shell (42); the whole locking inner core shell (42) is divided into two parts along the axis direction, and the two parts are divided into a left half locking inner core shell (421) and a right half locking inner core shell (422) which are completely consistent in shape; the left half locking inner core shell (421) and the right half locking inner core shell (422) are combined together and wrapped on the prying rod (1), the left half sheath (43) and the right half sheath (44) are combined together and wrapped on the locking inner core shell (42), and the middle parts of the inner side walls of the left half sheath (43) and the right half sheath (44) are respectively provided with a semi-circular arc-shaped groove (48) for clamping a positioning flange (47) and preventing the left half sheath (43) and the right half sheath (44) and the locking inner core shell (42) from moving axially relative to each other; the upper end and the lower end of the inner side wall of the left half sheath (43) are respectively provided with a locking block mounting groove (49), a spring (5) is arranged in the locking block mounting groove (49), the first locking block (411) is mounted in the locking block mounting groove (49) at the upper end, one end of the first locking block (411) abuts against the spring (5), and the other end of the first locking block (411) is located in the first locking block guiding groove (45); the second locking block (412) is arranged in a locking block mounting groove (49) at the lower end, one end of the second locking block (412) abuts against the spring (5), and the other end of the second locking block (412) is located in a groove (4-10) for guiding the second locking block.
4. The multi-function pry bar of claim 3, wherein: the left half sheath (43) and the right half sheath (44) are connected together through four bolts (6).
5. The multi-function pry bar of claim 1, wherein: three locking clamping grooves (13) are formed in the prying rod (1).
6. The multi-function pry bar of claim 3, wherein: the locking inner core shell (42), the left half sheath (43) and the right half sheath (44) are all plastic parts, the first locking block (411) is a steel part, and the second locking block (412) is a plastic part.
7. The multi-function pry bar of claim 1, wherein: the prying rod (1), the first plug (2) and the second plug (3) are integrally formed.
8. The multi-function pry bar of claim 1, wherein: the step (12) is welded on the pry bar rod (1).
9. A method of using the multi-function pry bar as defined in any one of claims 1-8, wherein: comprises a method for locking the sheath component (4) on the pry bar (1) and a method for unlocking the sheath component (4);
the method for locking the sheath component (4) on the pry bar (1) comprises the following steps: move the sheath subassembly (4) up and down, make a locking piece (411) correspond a certain locking draw-in groove (13), then left half sheath (43) and right half sheath (44) of swivelling joint together, because locking inner core casing (42) can not rotate around the pry bar pole (1), the rotation of left half sheath (43) and right half sheath (44) drives a locking piece (411) and No. two locking pieces (412) to rotate immediately, when a locking piece (411) rotates to the groove (45) for the direction of the locking piece of the section that the tank bottom face is empty, at this moment under the effect of spring (5), a locking piece (411) is pushed forward, thus support and lean on in locking draw-in groove (13), whole sheath subassembly (4) can not move up and down at this moment;
the unlocking method of the sheath component (4) comprises the following steps: the left half sheath (43) and the right half sheath (44) which are connected together in a rotating mode enable the first locking block (411) to be separated from the locking clamping groove (13), at the moment, the sheath assembly (4) is unlocked and can move up and down, a worker holds the sheath assembly (4) to move up and down to impact the step (12), and force can be applied to the plug at the end of the prying rod (1); in order to prevent the left half sheath (43), the right half sheath (44) and the locking inner core shell (42) from rotating relatively when force is applied, the left half sheath (43) and the right half sheath (44) can be continuously rotated after the first locking block (411) is separated from the locking clamping groove (13), so that the V-shaped protrusion (4121) on the second locking block (412) is clamped in the V-shaped notch (46) on the groove bottom surface of the groove (4-10) for guiding the second locking block, a certain anti-rotation effect is achieved, only manual force application is performed to rotate the left half sheath (43) and the right half sheath (44), and under the condition of no other external force action, the left half sheath (43) and the right half sheath (44) cannot rotate relatively to the locking inner core shell (42).
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| CN201911110729.3A CN110723698B (en) | 2019-11-14 | 2019-11-14 | Multifunctional crow bar and use method thereof |
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| CN201911110729.3A CN110723698B (en) | 2019-11-14 | 2019-11-14 | Multifunctional crow bar and use method thereof |
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