CN111098254A - Special tool for disassembling socket head cap screws - Google Patents

Special tool for disassembling socket head cap screws Download PDF

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Publication number
CN111098254A
CN111098254A CN201911321561.0A CN201911321561A CN111098254A CN 111098254 A CN111098254 A CN 111098254A CN 201911321561 A CN201911321561 A CN 201911321561A CN 111098254 A CN111098254 A CN 111098254A
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CN
China
Prior art keywords
wrench
screw
head
strong
bayonet
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Pending
Application number
CN201911321561.0A
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Chinese (zh)
Inventor
邓万达
娄群伟
盛丹
熊左桥
黄启瑞
曾慧玲
朱晓芸
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Sichuan Hope Automobile Vocational College
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Sichuan Hope Automobile Vocational College
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Application filed by Sichuan Hope Automobile Vocational College filed Critical Sichuan Hope Automobile Vocational College
Priority to CN201911321561.0A priority Critical patent/CN111098254A/en
Publication of CN111098254A publication Critical patent/CN111098254A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/56Spanner sets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02Arrangements for handling screws or nuts
    • B25B23/08Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The invention relates to a special tool in metalworking operation, which comprises the following parts: special tools for disassembling the socket head cap screws. The invention relates to a tool capable of rapidly clamping the screw socket of an inner hexagon screw as much as possible, which can reduce the phenomenon of thread sliding caused by loosening so as to avoid damaging the screw and a nut. The invention aims at the inner hexagonal screw which is particularly stubborn or damaged, is additionally provided with the powerful wrench, is matched with the common inner hexagonal wrench, and is disassembled in a clamping and pulling mode of internal and external tapping, so that disassembling methods such as violent knocking and the like can be eliminated, and machines and tools for installing the inner hexagonal screw can be better protected.

Description

Special tool for disassembling socket head cap screws
Technical Field
The invention discloses a special tool for disassembling an inner hexagonal screw, relates to a metalworking tool, and belongs to the G08-05 physical category.
Background
During automobile disassembly and other metalworking operations, significant disassembly of the allen screw is encountered. In the process of disassembling the inner hexagon screw, only the inner hexagon wrench can be used generally, and the phenomenon that the inner hexagon wrench cannot be disassembled is often encountered. This is caused by the fact that there is always a certain clearance between the allen wrench and the screw. In the face of installing a relatively tight screw (such as an automobile inner half shaft screw) or a rusted socket head cap screw, the problem that the screw cannot be disassembled due to sliding damage of a screw opening is easily caused by excessive or improper force application. The method for solving the problem in the construction process has unsatisfactory effect and certain destructiveness. For example, a steel saw blade is used to saw a transverse opening on the screw and then the screw is disassembled by rotating a cutter, a welding square steel is added on the screw and then the screw is disassembled by a wrench, a chisel is used to cut the screw along the screw thread direction by a chisel, or the screw is drilled by an electric drill. These methods are time consuming and labor intensive and can cause significant damage to the screws and the tools used to install the screws. Aiming at the problems, the invention provides a special tool which can clamp the screw mouth of the socket head cap screw as much as possible or additionally arrange the special tool which can generate strong holding power on the periphery of the socket head cap screw so as to ensure that the socket head cap screw can be safely and conveniently disassembled.
Disclosure of Invention
1. Referring to fig. 1, a special tool for disassembling an inner hexagon screw is provided with a common inner hexagon wrench (1.1), an inner double offset ring spanner (1.2) and a powerful wrench (1.3). The utility model provides a disassemble special tool of allen key, by the allen key (1.1) commonly used, interior box end wrench (1.2) and powerful spanner (1.3) constitute characterized by:
2. referring to fig. 1 and 2, the common allen key (1.1) according to the invention 1 is provided with an auxiliary fastening key (2.1), a key connecting sleeve (2.2), a fastening thimble (2.3) and a key head (2.4), and is characterized in that:
3. see fig. 3, the fastening thimble (3.1) of the invention content 2 is provided with a spring (3.2), the upper part of the spring is provided with a rectangular groove (3.3), the upper part of the rod is provided with a thread (3.4), and the bottom of the rod is a cone (3.5);
4. fig. 4, fig. 4(1) is an outline drawing of a wrench connecting sleeve, fig. 4(2) is a cross-sectional view of the wrench connecting sleeve, and the outline of the wrench connecting sleeve (4.1.1) in the invention 2 is shown in fig. 4(1), which is characterized in that: the upper part of the ratchet wrench is provided with a rectangular cavity (4.2.1) for connecting the ratchet wrench; the lower part of the cavity is a hexagonal prism cavity (4.2.2), and a round perforation (4.2.3) is arranged between the two cavities;
5. see fig. 5, fig. 5(1) is an exploded view of the wrench head, and fig. 5(2) is an assembled view of the wrench head. The invention content 2 is that the wrench head (2.4) is composed of a wrench head block (5.1.1), a wrench head block (5.1.2) and a wrench head block (5.1.3) which are equally divided along the axial direction, and the wrench head (5.2.1) shown in the figure 5(2) is formed by connecting and combining snap rings (5.1.4);
6. see fig. 5, fig. 5(3) is a characteristic diagram of the wrench head. Invention content 2 the wrench head (2.4), characterized in that: a cylindrical opening (5.3.1) is arranged along the central axial direction, a screw opening (5.3.2) is arranged at the upper part of the opening, and the lower part of the opening is a cone (5.3.3).
7. Referring to fig. 1 and 6, the inner plum blossom shaped spanner (1.2) in the invention content 1 is an inner hexagonal plum blossom shaped fruit picker, and is characterized in that: a cylindrical opening (6.1) is formed along the central axial direction of the hollow shaft, a screw opening (6.2) is formed in the upper part of the opening, and the lower part of the opening is a cone (6.3);
8. referring to fig. 1 and 7, the strong wrench (1.3) of the invention 1 is composed of a strong sleeve (7.1), a connecting wrench head (7.2), a strong bayonet (7.3), a connecting pin (7.4) and other parts; the method is characterized in that:
9. referring to fig. 7, the upper part of the strong sleeve (7.1) is provided with a hexagonal hollow wrench head (7.5); the upper part of the connecting wrench head (7.2) is provided with a hexagonal prism wrench head (7.6), the middle part is provided with a screw opening (7.7), and the lower part is provided with a notch (7.8) matched and connected with the strong bayonet (7.3); the upper part of the strong bayonet (7.3) is provided with a connecting block (7.9) which is matched and connected with the notch (7.8) of the connecting wrench head (7.2), and the lower part is provided with a circular ring-shaped bulge (7.10).
10. Fig. 8 is a sectional view of a part of the power wrench, and the power sleeve (8.1) of the invention content 8 is internally provided with a screw opening (8.4); the connecting wrench head (8.2) of the invention content 8 is internally provided with a rectangular column (8.5); the lower part of the strong bayonet (8.3) of the invention content 8 is provided with a latch (8.6).
11. The strong wrench disclosed in the invention is composed of a connecting wrench head (9.1) and a strong bayonet (9.2) which are connected through a connecting pin (9.3) to form a clamping wrench member as shown in the figure.
12. Referring to fig. 10, a strong sleeve (10.2) is sleeved on the clamping wrench member (10.1) to form the strong wrench shown in the figure.
13. Referring to fig. 1, 2 and 10, as in the summary of the invention described above, two main tools will be formed:
(A) referring to fig. 1 and 2, a common socket head wrench (1.1) is composed of an auxiliary fastening wrench (2.1), a wrench connecting sleeve (2.2), a fastening thimble (2.3) and a wrench head (2.4), and is mainly used for disassembling screws in a normal state and firmer screws. The principles and features thereof are further explained in the detailed description;
(B) referring to fig. 1 and 10, the power wrench (1.3) is assembled by sleeving a power sleeve (10.2) on a clamping wrench component (10.1) and is mainly used for disassembling screws which are damaged by slipping and rusted and stubborn screws. The principles and features thereof will be further explained in the detailed description of preferred embodiments.
Advantageous effects
The invention relates to a special tool which can clamp a screw socket of an inner hexagon screw as much as possible or can generate strong holding power on the periphery of the inner hexagon screw, so that the inner hexagon screw can be dismounted in a time-saving and labor-saving manner.
And 2, the phenomenon of thread sliding caused by loosening is reduced, so that the damage to the screw and the nut is avoided.
3, the inner hexagon screw is removed by methods such as violent knocking and the like, so that the mounting machine can be better protected.
Drawings
FIG. 1: is a special tool outline drawing for disassembling the socket head cap screw
(1.1) a common internal hexagonal wrench; (1.2) an inner plum blossom spanner head; and (1.3) is a powerful wrench.
FIG. 2: is a drawing of a common internal hexagonal wrench
(1.1) a common internal hexagonal wrench; (2.1) an auxiliary fastening wrench; (2.2) is a wrench connecting sleeve; (2.3) fastening thimbles; and (2.4) is a wrench head.
FIG. 3: for fastening thimble characteristic diagrams
The (3.1) is a fastening thimble, (3.2) is a spring, (3.3) is a rectangular groove, (3.4) is a thread, and (3.5) is a cone.
FIG. 4: characteristic diagram of connecting sleeve for wrench
(4.1.1) is an outline drawing of the wrench connecting sleeve; (4.2.1) the cavity is a rectangular cavity; (4.2.2) is a hexagonal prism cavity; and (4.2.3) is a circular perforation.
FIG. 5: is a characteristic diagram of a wrench head
FIG. 5(1) is an exploded view of the wrench head; FIG. 5(2) is a perspective view of the wrench head; FIG. 5(3) is a characteristic diagram of the wrench head.
(5.1.1) is a wrench head formed by axially equally dividing a first wrench head block, (5.1.2) is a wrench head block II equally dividing along the axial direction, (5.1.3) is a wrench head block III equally dividing along the axial direction, (5.1.4) is a clamping ring, and (5.2.1) is a combined wrench head; (5.3.1) the holes are cylindrical; (5.3.2) is a screw opening at the upper part of the opening, and (5.3.3) is a cone at the lower part of the opening.
FIG. 6: is a characteristic diagram of a plum blossom wrench
(6.1) the hole is a cylindrical hole along the central axial direction of the hole; (6.2) forming a screw opening at the upper part of the opening; and (6.3) the lower part of the opening is conical.
FIG. 7: is a drawing of a part of a powerful wrench
(7.1) is a strong sleeve; (7.2) a connecting wrench head; (7.3) is a strong bayonet; (7.4) is a connecting pin; (7.5) the wrench is a hexagonal hollow wrench head; (7.6) a hexagonal prism wrench head, (7.7) a screw opening, and (7.8) a matching notch; the (7.9) is a connecting block, and the (7.10) is an annular bump.
FIG. 8: sectional view of a part of a power wrench
(8.1) is a strong sleeve; (8.2) a connecting wrench head; (8.3) the bayonet is a strong bayonet; (8.4) forming a silk opening; (8.5) the inside of the bracket is provided with a rectangular column; and (8.6) is a latch.
FIG. 9: for clamping and pulling the component
(9.1) connecting a spanner head; (9.2) the bayonet is a strong bayonet; and (9.3) is a connecting pin.
FIG. 10: assembling a powerful wrench; (10.1) a clamping and pulling component; and (10.2) is a strong sleeve.
FIG. 11: a section view of the clamping principle of a common internal hexagonal wrench
(11.1) an auxiliary fastening wrench; (11.2) is a wrench connecting sleeve; (11.3) a wrench head; (11.4) fastening thimbles; (11.5) fastening a thimble screw hole; (11.6) the taper of the thimble; (11.7) is a rotation direction schematic arrow; (11.8) is an expansion schematic arrow; (11.9) screws for disassembly operation; the (11.10) is the inner hexagonal bayonet of the screw, and the (11.11) is the screw opening in the wrench head.
FIG. 12: is an operation principle diagram of a common internal hexagonal wrench
The screw to be disassembled is (12.1), (12.2) a common inner hexagonal wrench is (12.3) a rectangular notch on the common inner hexagonal wrench is (12.4) a rotation direction schematic arrow is (1).
FIG. 13: sectional view of clamping principle of powerful wrench
The wrench comprises (1), (13.1) a powerful wrench, (13.2) a screw to be disassembled, (13.3) a powerful sleeve of the powerful wrench, (13.4) a hexagonal hollow wrench head at the upper part of the powerful sleeve, (13.5) a screw opening, (13.6) one powerful bayonet of the powerful wrench, (13.7) the other powerful bayonet of the powerful wrench, (13.8) a circular bulge on the powerful bayonet, and (13.9) a latch for clamping the screw to be disassembled by the powerful bayonet.
FIG. 14: is a cross-sectional view of the operation principle of a powerful wrench
The screw to be disassembled (14.1), the common internal hexagonal wrench (14.2), the powerful wrench (14.3), the hexagonal prism wrench head (14.4) and the rectangular column (14.5) are provided, wherein the hexagonal prism wrench head and the rectangular column are respectively provided with a screw and a screw bolt.
Detailed Description
1. A special tool for disassembling an inner hexagon screw comprises a common inner hexagon wrench (1.1), an inner double offset ring spanner (1.2) and a powerful wrench (1.3). The composition is characterized in that:
A. the material of the main body combination member of the special tool for disassembling the socket head cap screw according to embodiment 1 is common tool steel;
B. the special tool for disassembling the socket head cap screw in the embodiment 1 is manufactured into two tools, namely a common socket head cap wrench (1.1) and a powerful wrench (1.3);
C. the common socket head wrench (1.1) in the specific embodiment 1 is composed of an auxiliary fastening wrench (2.1), a wrench connecting sleeve (2.2), a fastening thimble (2.3), a wrench head (2.4) and other parts, and is mainly used for disassembling screws in a normal state and firmer screws;
D. the strong wrench (1.3) of the embodiment 1 comprises a strong sleeve (7.1), a connecting wrench head (7.2), a strong bayonet (7.3), a connecting pin (7.4) and other parts; the tool is matched with a common internal hexagonal wrench (1.1) for use, and is mainly used for disassembling slipped and damaged screws and rusted and stubborn screws;
E. the internal box end wrench (1.2) of the specific embodiment 1 is a wrench of other types and sizes which can be mutually replaced with a wrench head (2.4) installed on a common internal hexagonal wrench (1.1), so that the common internal hexagonal wrench (1.1) can disassemble internal hexagonal screws of different sizes.
2. The common internal hexagonal wrench (1.1) of embodiment 1 is shown in the figure (1.1); the principle and the operation process are as follows:
A. see FIG. 11: fig. 11 is a cross-sectional view of a clamping principle of a common allen key, wherein (11.1) is an auxiliary fastening wrench, (11.2) is a wrench connecting sleeve, (11.3) is a wrench head, (11.4) is a fastening thimble, (11.5) is a fastening thimble screw mouth, (11.6) is a taper of the thimble, (11.7) is a rotation direction schematic arrow, (11.8) is an expansion schematic arrow, (11.9) is a screw to be disassembled, (11.10) is an allen bayonet of the screw, and (11.11) is a screw mouth in the wrench head;
B. referring to fig. 11, the principle of the common socket head wrench for clamping the screw is as follows: when the auxiliary tightening wrench (11.1) is rotated in the direction of the rotation direction indicated by the arrow, the tightening pin (11.4) will be moved towards the lower part of the wrench head (11.3) by the interaction of the mouth (11.11) in the wrench head and the mouth (11.5) of the tightening pin, as a result of which movement: the squeezing of the wrench head (11.3) by the cone (11.6) of the fastening thimble (11.4) causes the wrench head (11.3) to expand in the direction of the expansion schematic arrow (11.8). If the wrench head (11.3) is inserted into the inner hexagonal bayonet (11.10) of the screw (11.9) to be disassembled, the wrench head (11.3) and the inner hexagonal bayonet (11.10) of the screw (11.9) to be disassembled are firmly clamped and connected together;
C. see fig. 11, fig. 12: fig. 12 is an operational diagram of a conventional allen wrench:
①, (12.1) is a screw to be disassembled, (12.2) is a common inner hexagon wrench, (12.3) is a rectangular notch on the common inner hexagon wrench, (12.4) is an arrow indicating the rotation direction;
②, the disassembling operation process of the common socket head wrench comprises the steps of firstly inserting the common socket head wrench into the socket head of the screw to be disassembled, then firmly clamping and connecting the wrench head (11.3) and the socket head (11.10) of the screw (12.1) together as described in embodiment 2B, namely inserting the ratchet wrench into the rectangular notch (12.3), and rotating the common socket head wrench in the direction of the rotation direction indication arrow (12.4) to disassemble the screw (12.1).
3. Embodiment 1 the power wrench (1.3) is combined as shown in fig. 1.3, and the principle of clamping the disassembled screw and the process of the disassembling operation are as follows:
A. fig. 13, fig. 13 is a schematic diagram of a power wrench: (13.1) a strong wrench, (13.2) a screw to be disassembled, (13.3) a strong sleeve of the strong wrench, (13.4) a hexagonal hollow wrench head at the upper part of the strong sleeve, (13.5) a screw opening, (13.6) a strong bayonet of the strong wrench, (13.7) another strong bayonet of the strong wrench, (13.8) a circular bulge on the strong bayonet, and (13.9) a latch of the strong bayonet for clamping the screw to be disassembled;
B. referring to fig. 13, the clamping principle of the power wrench is as follows: as shown in fig. 13: the powerful spanner (13.1) is sleeved on a screw (13.2) to be disassembled, when the powerful spanner (13.1) is rotated clockwise and the hexagonal hollow spanner head (13.4) at the upper part of the powerful sleeve (13.3) moves downwards under the action of the screw opening (11.5), and the result of the movement is that: the front end of the strong sleeve (13.3) is inwards pressed to form circular ring-shaped bulges on the strong bayonet (13.6) and the strong bayonet (13.7), so that the strong bayonet (13.6) and the strong bayonet (13.7) are inwards applied with force, and the outer edge of the screw (13.2) to be disassembled is firmly clamped by utilizing the upper clamping teeth (13.9) of the strong bayonet;
C. fig. 14, fig. 14 is an operation schematic diagram of the power wrench, in which (14.1) is a screw to be disassembled, (14.2) is a common allen wrench, (14.3) is a power wrench, (14.4) is a hexagonal-prism wrench head of the power wrench, and (14.5) is a rectangular column of the power wrench;
D. referring to fig. 14, the operation principle of the power wrench is as follows: the process of disassembling the screw (14.1) to be disassembled by using the powerful wrench (14.3) and the common internal hexagonal wrench (14.2) together is as follows: firstly, a common inner hexagon wrench is inserted into an inner hexagon bayonet of a screw to be disassembled, and then the common inner hexagon wrench and the screw are firmly clamped and connected together by the operation as described in the embodiment 2B; when the powerful wrench (14.2) is sleeved on the screw (14.1) to be disassembled and the powerful wrench (14.3) is firmly clamped on the outer edge of the screw (14.1) to be disassembled in a mode B in the specific embodiment 3, the rectangular column (14.5) on the powerful wrench (14.3) is inserted into the rectangular notch of the inner hexagonal wrench (14.2), so that the powerful wrench (14.3), the common inner hexagonal wrench (14.2) and the disassembling screw (14.1) are combined together to form a state of clamping connection of the inner clamping tap and the outer clamping tap of the disassembling screw (14.1); at this time, the stubborn screw (14.1) can be removed by moving the hexagonal head (14.4) of the strong wrench (14.3) counterclockwise.

Claims (7)

1. A special tool for disassembling an inner hexagonal screw comprises a common inner hexagonal wrench (1.1), an inner double offset ring spanner (1.2) and a powerful wrench (1.3).
2. The common allen key (1.1) as claimed in claim 1, which is provided with an auxiliary fastening wrench (2.1), a wrench connecting sleeve (2.2), a fastening thimble (2.3) and a wrench head (2.4), and is characterized in that:
A. the fastening thimble (2.3) is provided with a spring (3.2), the upper part of the fastening thimble is provided with a rectangular groove (3.3), the upper part of the rod of the fastening thimble is provided with a thread (3.4), and the bottom of the rod of the fastening thimble is a cone;
B. spanner adapter sleeve (2.2), characterized by: the upper part of the cavity is a rectangular cavity (4.2.1), the lower part of the cavity is a hexagonal prism cavity (4.2.2), and a circular perforation (4.2.3) is arranged between the two cavities;
C. the wrench head (2.4) is composed of wrench head blocks (5.1.1), wrench head blocks (5.1.2) and wrench head blocks (5.1.3) which are equally divided along the axial direction, and the wrench head (5.2.1) is formed by connecting and combining snap rings (5.1.4);
D. the wrench head is provided with a cylindrical opening (5.3.1) along the central axial direction, the upper part of the opening is provided with a screw opening (5.3.2), and the lower part of the opening is a cone (5.3.3).
3. The inner plum blossom wrench (1.2) as claimed in claim 1, which is an inner hexagonal plum blossom shaped fruit picker, characterized in that: a cylindrical opening (6.1) is arranged along the central axial direction, a screw opening (6.2) is arranged at the upper part of the opening, and the lower part of the opening is a cone (6.3).
4. The power wrench (1.3) as claimed in claim 1, which comprises a power socket (7.1), a connecting wrench head (7.2), a power bayonet (7.3), a connecting pin (7.4), and the like, and is characterized in that:
A. the upper part of the strong sleeve (7.1) is provided with a hexagonal hollow wrench head (7.5); the upper part of the connecting wrench head (7.2) is provided with a hexagonal prism wrench head (7.6), the middle part is provided with a screw opening (7.7), and the lower part is provided with a notch (7.8) matched and connected with the strong bayonet (7.3); the upper part of the strong bayonet (7.3) is provided with a connecting block (7.9) which is in pin connection and matching with the notch (7.8) of the connecting wrench head (7.2), and the lower part is provided with a circular ring-shaped bulge (7.10);
B. the inner part of the strong sleeve (8.1) is provided with a thread opening (8.4); a rectangular column (8.5) is arranged inside the connecting wrench head (8.2), and a latch (8.6) is arranged at the lower part of the strong bayonet (8.3);
C. the powerful wrench is formed by connecting a connecting wrench head (9.1) and a powerful bayonet (9.2) through a connecting pin (9.3) to assemble a clamping wrenching component as shown in figure 9;
D. the strong wrench is assembled by sleeving a strong sleeve (10.2) on a clamping wrench component (10.1) as shown in figure 10.
5. The allen key (1.1) as claimed in claim 1, wherein the clamping screw (11.9) is characterized in that: when the auxiliary tightening wrench (11.1) is rotated in the direction of the rotation direction indicated by the arrow, the tightening pin (11.4) will be moved towards the lower part of the wrench head (11.3) by the interaction of the wrench head screw mouth (11.5) and the tightening pin screw mouth (11.5), as a result of which movement: the squeezing of the taper (11.6) of the fastening thimble (11.4) to the wrench head (11.3) causes the wrench head (11.3) to expand towards the direction of the expansion indication arrow (11.8), and if the wrench head (11.3) is inserted into the inner hexagonal bayonet (11.10) of the screw (11.9), the wrench head (11.3) and the inner hexagonal bayonet (11.10) of the screw (11.9) are firmly clamped and connected together.
6. The power wrench (13.1) for tightening screws according to claim 1 is characterized in that: the powerful wrench (13.1) is sleeved on the screw (13.2) to be disassembled, when the powerful wrench (13.1) is rotated clockwise and the hexagonal hollow wrench head (13.4) at the upper part of the powerful sleeve (13.3) moves downwards under the action of the screw opening (11.5), and the result of the movement is that: the front end of the strong sleeve (13.3) is inwards pressed to form circular ring-shaped bulges on the strong bayonet (13.6) and the strong bayonet (13.7), so that the strong bayonet (13.6) and the strong bayonet (13.7) are inwards applied with force, and the outer edge of the screw (13.2) to be disassembled is firmly clamped by the clamping teeth (13.9) on the strong bayonet.
7. The feature of the commonly used socket head wrench (1.1) and power wrench (1.3) in the special tool for disassembling socket head cap screws in claim 1 is that: firstly, a common inner hexagonal wrench (14.2) is inserted into an inner hexagonal bayonet of a screw (14.1) to be disassembled, and then the common inner hexagonal wrench and the screw are firmly clamped and connected together by the operation as described in the embodiment mode B in the embodiment mode 2; when the powerful wrench (14.2) is sleeved on the screw (14.1) to be disassembled and the powerful wrench (14.3) is firmly clamped on the outer edge of the screw (14.1) to be disassembled in a mode B in the specific embodiment 3, the rectangular column (14.5) on the powerful wrench (14.3) is inserted into the rectangular notch of the inner hexagonal wrench (14.2), so that the powerful wrench (14.3), the common inner hexagonal wrench (14.2) and the disassembling screw (14.1) are combined together to form a state of clamping connection of the inner clamping tap and the outer clamping tap of the disassembling screw (14.1); at this time, the stubborn screw (14.1) can be removed by moving the hexagonal head (14.4) of the strong wrench (14.3) counterclockwise.
CN201911321561.0A 2019-12-20 2019-12-20 Special tool for disassembling socket head cap screws Pending CN111098254A (en)

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CN201911321561.0A CN111098254A (en) 2019-12-20 2019-12-20 Special tool for disassembling socket head cap screws

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011771A1 (en) * 2000-03-10 2001-09-13 Rennsteig Werkzeuge Gmbh Screw extractor; has shaft point with rear spanner end and front working point, forming non-positive connection with screw to be extracted and formed with longitudinal, conically-tapering webs
US6997086B1 (en) * 2005-09-02 2006-02-14 Neil John Graham Locking screwdriver
CN2850537Y (en) * 2005-11-21 2006-12-27 彭建林 Allen screw driver with snap ring
CN101954584A (en) * 2009-07-20 2011-01-26 鸿富锦精密工业(深圳)有限公司 Automatic lock screw device
US20140102265A1 (en) * 2012-10-13 2014-04-17 Devin Lee Looijen Expandable drivers and bits
CN204913722U (en) * 2015-07-27 2015-12-30 国网山东省电力公司聊城供电公司 Interior hexagonal combination multiplexer utensil
JP2017159438A (en) * 2016-03-09 2017-09-14 Mkt株式会社 Broken or damaged bolt removing tool
JP2017193008A (en) * 2016-04-20 2017-10-26 中国電力株式会社 Special screw attachment/detachment tool and special screw attachment/detachment tool unit
CN206967382U (en) * 2017-05-10 2018-02-06 山东科技大学 A kind of die nut device
CN108214377A (en) * 2017-12-15 2018-06-29 国家电网公司 A kind of screwdriver
CN208961906U (en) * 2018-08-21 2019-06-11 沈阳利源轨道交通装备有限公司 A kind of elastic cylindrical pin provision for disengagement
JP6532991B1 (en) * 2018-07-24 2019-06-19 鈴木 勇雄 Tool for screw removal
CN209256835U (en) * 2018-12-25 2019-08-16 武汉福卡迪汽车技术有限公司 A kind of needle bearing front output shaft extracting tool

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011771A1 (en) * 2000-03-10 2001-09-13 Rennsteig Werkzeuge Gmbh Screw extractor; has shaft point with rear spanner end and front working point, forming non-positive connection with screw to be extracted and formed with longitudinal, conically-tapering webs
US6997086B1 (en) * 2005-09-02 2006-02-14 Neil John Graham Locking screwdriver
CN2850537Y (en) * 2005-11-21 2006-12-27 彭建林 Allen screw driver with snap ring
CN101954584A (en) * 2009-07-20 2011-01-26 鸿富锦精密工业(深圳)有限公司 Automatic lock screw device
US20140102265A1 (en) * 2012-10-13 2014-04-17 Devin Lee Looijen Expandable drivers and bits
CN204913722U (en) * 2015-07-27 2015-12-30 国网山东省电力公司聊城供电公司 Interior hexagonal combination multiplexer utensil
JP2017159438A (en) * 2016-03-09 2017-09-14 Mkt株式会社 Broken or damaged bolt removing tool
JP2017193008A (en) * 2016-04-20 2017-10-26 中国電力株式会社 Special screw attachment/detachment tool and special screw attachment/detachment tool unit
CN206967382U (en) * 2017-05-10 2018-02-06 山东科技大学 A kind of die nut device
CN108214377A (en) * 2017-12-15 2018-06-29 国家电网公司 A kind of screwdriver
JP6532991B1 (en) * 2018-07-24 2019-06-19 鈴木 勇雄 Tool for screw removal
CN208961906U (en) * 2018-08-21 2019-06-11 沈阳利源轨道交通装备有限公司 A kind of elastic cylindrical pin provision for disengagement
CN209256835U (en) * 2018-12-25 2019-08-16 武汉福卡迪汽车技术有限公司 A kind of needle bearing front output shaft extracting tool

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Application publication date: 20200505