CN204308865U - A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load - Google Patents

A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load Download PDF

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Publication number
CN204308865U
CN204308865U CN201420697894.XU CN201420697894U CN204308865U CN 204308865 U CN204308865 U CN 204308865U CN 201420697894 U CN201420697894 U CN 201420697894U CN 204308865 U CN204308865 U CN 204308865U
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CN
China
Prior art keywords
telescopic handle
connecting rod
annular groove
fixed block
screw
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Expired - Fee Related
Application number
CN201420697894.XU
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Chinese (zh)
Inventor
林群富
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林群富
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Priority to CN201420697894.XU priority Critical patent/CN204308865U/en
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Publication of CN204308865U publication Critical patent/CN204308865U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load, comprises handle, connecting rod, spring, fixed block, circular hole, screw hole, trip bolt, base, first order annular groove, second level annular groove, driver bit, Telescopic handle.The utility model structure is simple, easy to use, can tighten the screw being in the narrow location such as corner and unscrew, and can prevent the excessive screw that causes of moment from damaging, be conducive to improving the operating efficiency of tightening and unscrewing the screw being in the narrow location such as corner.

Description

A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load
Technical field
The utility model relates to a kind of screwdriver, and specifically a kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load, belongs to machine tool technical field.
Background technology
Screwdriver is that a kind of being used for twists screw with the instrument forcing it in place, usually a thin sphenocephaly is had, in the line of rabbet joint that can insert screw cap or recess, screwdriver is generally made up of handle and the first-class multiple component of screwdriver, is specially adapted to tighten and unscrew the screw of the very narrow or very depths of caving in, residing space.
Often need to use screwdriver tighten screw and unscrew in machine work.Because the structure of current widely used screwdriver in production and life is all generally fixing, certain operating radius is needed when the existing screwdriver of use to be tightened the screw being in the narrow location such as corner and unscrewed, cause normally using screwdriver tighten the screw being in the narrow location such as corner and unscrew, and easily cause nut to damage, therefore, in the urgent need to a kind of screwdriver that can tighten the screw being in the narrow location such as corner and unscrew.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of structure simple, easy to use, the telescopic handle connecting rod that can tighten the screw being in the narrow location such as corner and unscrew can the adjustable antioverloading screwdriver of bending load.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load, comprise handle, connecting rod, spring, fixed block, circular hole, screw hole, trip bolt, base, first order annular groove, second level annular groove, driver bit, Telescopic handle, it is characterized in that: one end of described connecting rod is fixedly connected with the middle part of handle is vertical, the other end of connecting rod is provided with spring, one end of spring is fixedly connected with one end of connecting rod, the other end of spring is fixedly connected with the top of fixed block, circular hole is provided with in fixed block, base is provided with in circular hole, the outer wall of base is provided with first order annular groove and second level annular groove, fixed block is provided with screw hole, trip bolt is provided with in screw hole, spring is provided with in fixed block, after one end of base embeds the circular hole be arranged in fixed block, the screw rod of trip bolt also embeds in the first order annular groove or second level annular groove that are arranged on base outer wall through the screw hole be arranged on fixed block, base is fixed in fixed block, one end of base is fixedly connected with the top of driver bit, the outside of handle is provided with Telescopic handle, circular hole is provided with in Telescopic handle, Telescopic handle is provided with screw hole, after in one end of handle enters and is arranged in Telescopic handle circular hole, trip bolt is through the screw hole be arranged on Telescopic handle, Telescopic handle is fixed on handle.
The drift of described spring is greater than the height of described base.
The height of described base is greater than the width of described first order annular groove and second level annular groove.
The height of described fixed block is greater than the height of described base.
The width of described first order annular groove and second level annular groove is greater than the diameter of the screw rod of described trip bolt.
The length of described connecting rod is greater than the drift of described spring.
The length of described connecting rod is greater than the height of described fixed block.
Described spring is cylindrical helical spring.
The diameter of described connecting rod is greater than the external diameter of described spring.
The diameter of described fixed block is greater than the external diameter of described spring.
The surface of described handle, connecting rod, spring, fixed block, trip bolt, base, driver bit, Telescopic handle is through the concentrated sulfuric acid or red fuming nitric acid (RFNA) Passivation Treatment at normal temperatures, object improves the resistance to corrosion of screwdriver, to adapt to the severe working environment of various complexity.
Described first order annular groove is set in parallel in the below of second level annular groove.
Compared with prior art, the utility model has following beneficial effect: structure is simple, easy to use, can tighten the screw being in the narrow location such as corner and unscrew, and can prevent the excessive screw that causes of moment from damaging, be conducive to improving the operating efficiency of tightening and unscrewing the screw being in the narrow location such as corner.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is stereochemical structure exploded perspective view of the present utility model.
Fig. 3 is the perspective view of fixed block 4 in the utility model.
Fig. 4 is the perspective view of base 8 and driver bit 11 in the utility model.
Fig. 5 is the perspective view of trip bolt 7 and Telescopic handle 12 in the utility model.
In figure: 1-handle, 2-connecting rod, 3-spring, 4-fixed block, 5-circular hole, 6-screw hole, 7-trip bolt, 8-base, 9-first order annular groove, 10-second level annular groove, 11-driver bit, 12-Telescopic handle.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load, comprise handle 1, connecting rod 2, spring 3, fixed block 4, circular hole 5, screw hole 6, trip bolt 7, base 8, first order annular groove 9, second level annular groove 10, driver bit 11, Telescopic handle 12, it is characterized in that: one end of described connecting rod 2 is fixedly connected with the middle part of handle 1 is vertical, the other end of connecting rod 2 is provided with spring 3, one end of spring 3 is fixedly connected with one end of connecting rod 2, the other end of spring 3 is fixedly connected with the top of fixed block 4, circular hole 5 is provided with in fixed block 4, base 8 is provided with in circular hole 5, the outer wall of base 8 is provided with first order annular groove 9 and second level annular groove 10, fixed block 4 is provided with screw hole 6, trip bolt 7 is provided with in screw hole 6, spring 3 is provided with in fixed block 4, after one end of base 8 embeds the circular hole 5 be arranged in fixed block 4, the screw rod of trip bolt 7 also embeds in the first order annular groove 9 or second level annular groove 10 that are arranged on base 8 outer wall through the screw hole 6 be arranged on fixed block 4, base 8 is fixed in fixed block 4, one end of base 8 is fixedly connected with the top of driver bit 11, the outside of handle 1 is provided with Telescopic handle 12, circular hole 5 is provided with in Telescopic handle 12, Telescopic handle 12 is provided with screw hole 6, one end of handle 1 enters and is arranged on after in circular hole in Telescopic handle 12 5, trip bolt 7 is through the screw hole 6 be arranged on Telescopic handle 12, Telescopic handle 12 is fixed on handle 1.
The drift of described spring 3 is greater than the height of described base 8.
The height of described base 8 is greater than the width of described first order annular groove 9 and second level annular groove 10.
The height of described fixed block 4 is greater than the height of described base 8.
The width of described first order annular groove 9 and second level annular groove 10 is greater than the diameter of the screw rod of described trip bolt 7.
The length of described connecting rod 2 is greater than the drift of described spring 3.
The length of described connecting rod 2 is greater than the height of described fixed block 4.
Described spring 3 is cylindrical helical spring.
The diameter of described connecting rod 2 is greater than the external diameter of described spring 3.
The diameter of described fixed block 4 is greater than the external diameter of described spring 3.
The surface of described handle 1, connecting rod 2, spring 3, fixed block 4, trip bolt 7, base 8, driver bit 11, Telescopic handle 12 is through the concentrated sulfuric acid or red fuming nitric acid (RFNA) Passivation Treatment at normal temperatures, object improves the resistance to corrosion of screwdriver, to adapt to the severe working environment of various complexity.
Described first order annular groove 9 is set in parallel in the below of second level annular groove 10.
As shown in Figure 1, when needing tighten the screw being in the narrow location such as corner and unscrew, first by screwdriver
11 aim at the screw needing to be tightened and to unscrew, lateral pressure is applied by spring 3 bending to handle 1, driver bit 11 is embedded in the groove of screw that needs to be tightened and to unscrew simultaneously, rotary handle 1 can be tightened the screw being in the narrow location such as corner and unscrew, thus the object that realization is tightened the screw being in the narrow location such as corner and unscrewed.
When moment is greater than the frictional force at spring 3 pairs of base 8 tops, base 8 just can skid in fixed block 4, now increases moment in any case and all can not tighten screw and unscrew, thus can effectively prevent because moment is excessive and cause screw to damage.
When need to regulate its can the size of maximum moment of load time, first screw out trip bolt 7, then according to actual needs by first order annular groove 9 or second level annular groove 10 alignment screw hole 6, finally the screw rod of trip bolt 7 is embedded in first order annular groove 9 or second level annular groove 10 can change its can the size of maximum moment of load.
In time needing the length of regulating handle 1, first unscrew trip bolt 7, then regulate Telescopic handle 12 to stretch out the length of handle 1, finally screw trip bolt 7 and can lock Telescopic handle 12, thus reach the object of regulating handle 1 length.
The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.

Claims (2)

1. a telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load, comprise handle (1), connecting rod (2), spring (3), fixed block (4), circular hole (5), screw hole (6), trip bolt (7), base (8), first order annular groove (9), second level annular groove (10), driver bit (11), Telescopic handle (12), it is characterized in that: one end of described connecting rod (2) is fixedly connected with the middle part of handle (1) is vertical, the other end of connecting rod (2) is provided with spring (3), one end of spring (3) is fixedly connected with one end of connecting rod (2), the other end of spring (3) is fixedly connected with the top of fixed block (4), circular hole (5) is provided with in fixed block (4), base (8) is provided with in circular hole (5), the outer wall of base (8) is provided with first order annular groove (9) and second level annular groove (10), fixed block (4) is provided with screw hole (6), trip bolt (7) is provided with in screw hole (6), spring (3) is provided with in fixed block (4), after one end of base (8) embeds the circular hole (5) be arranged in fixed block (4), the screw rod of trip bolt (7) is through the screw hole (6) be arranged on fixed block (4) and embed in the first order annular groove (9) that is arranged on base (8) outer wall or second level annular groove (10), base (8) is fixed in fixed block (4), one end of base (8) is fixedly connected with the top of driver bit (11), the outside of handle (1) is provided with Telescopic handle (12), circular hole (5) is provided with in Telescopic handle (12), Telescopic handle (12) is provided with screw hole (6), after in one end of handle (1) enters and is arranged in Telescopic handle (12) circular hole (5), trip bolt (7) is through the screw hole (6) be arranged on Telescopic handle (12), Telescopic handle (12) is fixed on handle (1).
2. a kind of telescopic handle connecting rod according to claim 1 can the adjustable antioverloading screwdriver of bending load, it is characterized in that: the drift of described spring (3) is greater than the height of described base (8).
CN201420697894.XU 2014-11-20 2014-11-20 A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load Expired - Fee Related CN204308865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420697894.XU CN204308865U (en) 2014-11-20 2014-11-20 A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420697894.XU CN204308865U (en) 2014-11-20 2014-11-20 A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load

Publications (1)

Publication Number Publication Date
CN204308865U true CN204308865U (en) 2015-05-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420697894.XU Expired - Fee Related CN204308865U (en) 2014-11-20 2014-11-20 A kind of telescopic handle connecting rod can the adjustable antioverloading screwdriver of bending load

Country Status (1)

Country Link
CN (1) CN204308865U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150506

Termination date: 20151120

EXPY Termination of patent right or utility model