WO2010000204A1

WO2010000204A1 - A fastener provided with fastening teeth and a special wrench thereof

Info

Publication number: WO2010000204A1
Application number: PCT/CN2009/072587
Authority: WO
Inventors: 白士良
Original assignee: Bai Shiliang
Priority date: 2008-07-02
Filing date: 2009-07-01
Publication date: 2010-01-07

Abstract

A fastener provided with fastening teeth and a special wrench thereof. The fastener includes fastening teeth (45). One fastening tooth (45) consists of a convex tooth (4) and an adjacent tooth trough (5) engaged therewith. The fastening teeth (45) are provided on a fastener bolt (1) or a screw cap (7). In the case of small space, it is possible to screw or unscrew the bolt or the screw cap continuously by means of operating the special wrench back and forth, such that the bolt or the screw cap could be assembled and unassembled.

Description

Instructions Set fasteners with special fastening teeth and special wrench

Technical field

[1] The present invention relates to fasteners, specifically,

It relates to a fastener screw, a nut and a special wrench provided with fastening teeth.

Background technique

[2] The commonly used fastener hex screws and nuts are widely used; but there are occasions,

When attaching and detaching these hex screws and nuts using a fixed wrench or a spanner wrench, if you encounter a narrow environment, you can only use a wrench to clamp the hex screw or nut to rotate.

Remove the wrench and re-clamp the hex screw or nut to rotate it.

In this way, the wrench is continuously stuck-spinning-removing, intermittent operation, until the screw or nut is tightened or loosened, which is time-consuming and inefficient.

Disclosure of invention

technical problem

[3] It is an object of the present invention to provide a novel fastener provided with fastening teeth,

The fastening teeth are arranged on the screw head and the nut.

Make the screw and nut into screws and nuts with fastening teeth; the screws and nuts that set the fastening teeth can be used not only for general fastening needs,

It can also be used when you need to quickly change the common parts for assembly and disassembly. When the screw and nut are located in a small space, they can be easily used. By setting the screws and nuts of the fastening teeth, it is possible to avoid the inconvenience, inconvenience, and low work efficiency of the commonly used screws and nuts in a narrow space; when the special spanner wrench is installed, there are a fastener screw or nut that tightens the teeth,

If you encounter a narrow environment, you can avoid using the existing fixed wrench or adjustable wrench to clamp the hex screw or nut to rotate.

Remove the wrench and re-clamp the hex screw or the nut to rotate the intermittent operation, the trouble, and the low efficiency. Instead, just hold the ejector wrench and move it back and forth to continuously screw the screw or nut. Screw in or out to speed up the operation and increase work efficiency. The invention fills up the tightening on the fastener screw and the nut There are blanks in the solid teeth, and there are a variety of settings, which can be selected according to the needs of use. Technical solution

[4] The object of the present invention is achieved by the following technical solutions:

[5] 1. A fastener provided with fastening teeth, comprising a fastener screw or a nut; and a fastening tooth, the fastening tooth being composed of a convex tooth and a tooth groove,

The convex tooth and the tooth groove are adjacently connected; the fastening tooth is disposed on the outer circumference of the fastener screw or the nut, and the number of the fastening teeth is 4 or more; the convex tooth and the tooth groove have a rectangular cross-sectional shape Or trapezoidal or square; the longitudinal section of the tooth groove is trapezoidal or semi-circular, rectangular, square;

The fastening teeth are provided on the outer circumference of the screw head or on the outer circumference of the nut.

[6] 2. The fasteners are round or hexagonal, polygonal, gear-shaped head screws, or nuts; the fastening teeth are placed on the outer circumference of the screw head or nut.

[7] 3. The fastener further includes a pad loosely coupled with a screw or a nut provided with fastening teeth; the outer diameter of the screw of the screw is slightly larger than the diameter of the pad,

The outer diameter of the screw at the upper end of the screw is slightly smaller than the diameter of the pad,

Or the bell mouth is provided at the lower end of the nut, and the outer diameter of the tenon is slightly larger than the diameter of the pad, but slightly smaller than the counterbore at the lower end of the inner hole of the pad, the tenon is embedded in the counterbore without protruding under the pad flat.

[8] 4.

A novel spanner wrench comprising a head and a handle; the wrench is dedicated to the above-mentioned fastener provided with fastening teeth; the spanner wrench is provided with 1 or 2 head triggers and handles,

The trigger part comprises a supporting tooth, a spring wire, a cover plate; the cover plate is arranged at an upper end of the trigger;

The 1 and 2 ends of the trigger and the handle are connected together; a trigger hole is formed in the middle of the trigger;

One or more supporting teeth are arranged in the corresponding recesses in the yoke, and the supporting teeth and the yoke are loosely connected; the right end of the supporting teeth is moved up or down by a short distance from the left end or is received in the yoke.

The right end of the tooth protrudes under the pressure of the spring wire in the trigger hole of the trigger; one end of the spring wire is fixed in the trigger, and the other end is pressed against the right end of the head; the left end of the tooth is set at The corresponding recess in the seat is loosely connected to the trigger.

[9] 5.

The left end of the supporting tooth in the trigger has a shaft hole, and the two ends of the shaft passing through the shaft hole are fixed to the cover plate and/or the wrench On the seat.

[10] 6.

The shank and the handle are arranged to be detachably connected, and the detachable connection is a threaded connection or a concavo-convex mosaic connection; the threaded connection is a threaded hole provided at a corresponding position of the shank and the shank end And the threaded head is screwed together; the concavo-convex mosaic connection is a protrusion and a groove provided at a corresponding position of the trigger and the end of the handle, which are inlaid together, and then screwed or spring, marbled Both are fixed.

[11] 7. There is one fixed head flange of the same or different size at each end of the handle.

[12] 8.

At each end of the shank, there is a threaded loading head seat or a concavo-convex inlaid head yoke of the same or different size.

[13] 9.

The supporting tooth wrench further comprises a supporting sleeve, wherein the middle of the supporting sleeve is a hexagonal or triangular, square, octagonal, etc., or a hole shaped to fit the screw head and the nut, the inner diameter of the hole is slightly larger than the screw head The outer diameter of the nut; the outer circumference of the support sleeve is provided with fastening teeth, and the outer diameter of the support sleeve is slightly smaller than the inner diameter of the trigger hole.

[14] 10.

A hook wrench for a toothed screw, the hook wrench is dedicated to the above fastener provided with fastening teeth; the hook wrench includes 1 or 2 elbows and a handle; The front end of the head is provided with an inward convex hook tooth; 1 or 2 elbows are connected with the 1 or 2 end of the handle; the elbow is semicircular, and the inner radius is larger than the toothed screw head The outer radius of the head is slightly larger; the hook teeth are slightly smaller than the tooth slots of the toothed screw head

; convex hook teeth are similar to trapezoidal or triangular shapes.

Beneficial effect

[15] The beneficial effects of the present invention are: When grasping the fastener screw or the nut 设置 provided with the fastening teeth of the shackle wrench, if the environment is narrow, just hold the spur wrench back and forth. Pull,

The screw or nut can be screwed in or out quickly.

In order to speed up the operation, the work efficiency is obviously improved; this can avoid the use of the commonly used fixed wrench or adjustable wrench to clamp the hexagonal screw or the nut to rotate.

Remove the wrench and then re-clamp the hex screw or the nut to make the cumbersome operation, the trouble, and the inefficiency. [16] The invention fills in the blanks for setting the exposed supporting teeth on the hand tool wrench, and has various setting modes, which can be selected according to the needs of use.

DRAWINGS

1 is a schematic view of a fastener screw 1 provided with fastening teeth 45 of the present invention.

[18] Fig. 2 is an enlarged cross-sectional view taken along line A-A of a trapezoidal tooth groove 5 of Fig. 1.

[19] Figure 3 is a combined cross-sectional view of the screw 1 with the fastening teeth and the drop pad 圏 6.

[20] Figure 4 is a schematic illustration of a fastener nut 7 provided with fastening teeth 45.

[21] Fig. 5 is an enlarged cross-sectional view taken along line A'-A' of another semicircular gullet 5 of Fig. 1.

[22] Fig. 6 is a cross-sectional view taken along line B-B of Fig. 3.

Fig. 7 is a top plan cross-sectional view of the hexagonal screw head 2 with fastening teeth 45.

[24] Figure 8 is an enlarged view of the gullet K of Figure 6.

Figure 9 is a top plan cross-sectional view of another hexagonal screw head 2 with fastening teeth 45.

Fig. 10 is a top plan cross-sectional view of the hex nut 7 with the fastening teeth 45.

[27] Figure 11 is an enlarged view of another type of gullet K in Figure 6.

Figure 12 is a top plan cross-sectional view of another hex nut with fastening teeth 45.

[29] Fig. 13 is a sectional view showing the combination of the nut 7 and the pad 6 with fastening teeth.

Fig. 14 is a sectional view showing the combination of the nut 7 and the pad 6 with the fastening caps of the cap 19.

Figure 15 is an enlarged view of Figure 13.

[32] Figure 16 is a side view of the toothed wrench 10.

17 is a partial cross-sectional plan view of the toothed wrench 10.

18 is a bottom view of the cover plate 13.

Figure 19 is a left side elevational cross-sectional view of Figure 18.

[36] Fig. 20 is a right side view of the teeth 14.

[37] Fig. 21 is a schematic view of the spring wire 15.

Figure 22 is a cross-sectional view taken along line A - A of Figure 17;

23 is a partial cross-sectional plan view of another example of the spanner wrench 10.

[40] Fig. 24 is a schematic view of the bolster sleeve 35.

Figure 25 is a top plan view of Figure 24. 26 is a schematic view of the hook wrench 36.

Figure 23 is a top plan view of Figure 26.

[44] Description of the label

[45] (toothed) screw 1, screw head 2, screw 3, male tooth 4, gullet 5, pad 6, (toothed) nut 7, thread 8, tenon 9, toothed wrench 10 , the trigger 11, the handle 12, the cover plate 13, the support teeth 14,

Spring wire 15, trigger hole 16, loading and unloading hole 17, reducing hole 18, cap 19, cover 21, supporting tooth 22, shaft 23, counterbore 25, lower plane 26, struts 35, hook wrench 36, The elbow 37, the hook teeth 38, and the teeth 45 are fastened.

BEST MODE FOR CARRYING OUT THE INVENTION

[46]

Embodiments of the invention

[47] The present invention will be further described in detail below with reference to the accompanying drawings.

[48] 1. As shown in Fig. 1, it is a side view of a fastener head screw 1 provided with fastening teeth 45; the screw 1 includes a screw head 2 and a screw 3, which are distributed on the outer circumference of the screw head 2. 4 or more fastening teeth 45, the fastening teeth 45 are composed of a convex tooth 4 and a tooth groove 5, and the convex tooth 4 and the tooth groove 5 are adjacently connected; FIG. 3 shows the screw 1 and the pad with the fastening teeth. 6 sectional view of the connection; according to the needs of use, the upper surface of the screw head 2 can be arranged in a circular arc shape as shown; in order to reduce the weight, a reduction hole 18 can be arranged in the center of the screw 3,

The lower end of the illustrated relief hole 18 is open,

It can also be arranged in a closed type; the cross-sectional shape of the convex tooth 4 and the tooth groove 5 is similarly rectangular (see Fig. 8) or trapezoidal (as shown in Fig. 11), square;

The longitudinal section of the shape is similar to a trapezoid (shown in Figure 2) or a semi-circular shape (shown in Figure 5), rectangular, square; the two sides of the toothed groove 5 can be parallel, as shown in Figure 8; Need,

The two-side force-receiving surface S of the tooth groove 5 can also be set to a trapezoidal shape that is large and small.

See Fig. 11; or a boss C may be provided at the upper end of the 2 sides of the slot 5, as shown in Fig. 11.

In order to increase the frictional force between the use of the toothed wrench 10 and the force receiving surface S, it is more difficult to slip.

[49] As shown in Figures 1, 3 and 6, the top view of the screw head 2 shown in Figures 1 and 3 is circular.

The fastening teeth 45 are provided on the outer circumference of the screw head 2. The screw 1 is a round head screw 1 with fastening teeth 45.

[50] As shown in FIG. 4, it is a schematic side view showing that the fastening teeth 45 are disposed on the round nut 7, and the fastening teeth 45 are disposed on the outer circumference of the circular nut 7, and the outer circumference of the nut 7 is distributed. 4 or more fastening teeth 45. The head of the fastener screw 1 may be provided as a gear-shaped screw head 2 on which the fastening teeth are provided.

[52] According to the needs of use, the upper end portion G of the screw head 2 (shown in FIG. 1) can be removed, so that the convex teeth 4 are open, that is, the convex portions on the outer circumference of the screw head 2 can be directly seen on the top view thereof. Teeth 4,

Similar to the gear shape (similar to that shown in Figure 6), the stencil screw 1 can also be referred to as a gear head screw.

[53] The fastener nut 7 may be provided in a gear shape according to the use, and the fastening teeth are provided on the outer circumference of the nut 7. The arrangement is similar to that of the above 7, as long as the upper end portion G of the nut 7 is removed (see FIG. 4), so that the convex teeth 4 are open, that is, in the top view thereof, the outer circumference of the nut 7 can be directly seen. The male teeth 4, which are gear-like (similar to those shown in Fig. 6), may also be referred to as gear-shaped nuts.

[54] 2. The fastener is a circular or hexagonal, polygonal, gear-shaped head screw 1, or a nut 7; the fastening teeth 45 are provided on the outer circumference of the screw head 2 or the nut 7.

[55] As shown in Figs. 7, 9, which is a top view of the hexagonal fastener toothed screw 1, the fastener screw 1 can also be provided as other polygonal head screws, and the fastening teeth 45 are arranged on the polygonal screw head 2 On the outer circumference.

[56] According to the needs of use, the fastening teeth 45 can be arranged on the hexagonal or four-corner, octagonal and other polygonal screw heads 2, as shown in the top and partial cross-sectional views of Figures 7 and 9, so that the screws are toothed hexagons or four corners. a polygonal head screw such as an octagonal head; one or more fastening teeth 45 may be disposed on each side of the hexagonal polygonal screw head 2, and the tooth groove 5 may be disposed at a corner of the polygonal screw head 2,

See Figure 7; the gullet 5 can also be placed on the side of the polygonal screw head 2 as shown in Figure 9;

Thus, the toothed screw 1 can be operated not only by the toothed wrench 10 but also by the toothed wrench 10 .

It can also be operated with a normal fixed wrench or an adjustable wrench.

Users can choose the operation method according to different situations.

[57] See the top view of the hexagonal nut 7, shown in Figures 10 and 12,

The fastener nut 7 may be a hexagonal or polygonal nut 7, and the fastening teeth 45 are provided on the outer circumference of the nut 7.

[58] According to the needs of use, the fastening teeth 45 can be arranged on the hexagonal or four-corner, octagonal and other polygonal nuts, see the top and partial cross-sectional views of Figures 10 and 12, so that the nut is a toothed hexagon or a polygonal nut 7 of a square corner, an octagonal shape, etc.; one or more fastening teeth 45 may be provided on each side of the hexagonal polygonal nut 7, as shown in FIG. 12; the tooth groove 5 may be disposed on the polygonal nut 7 In the corner, as shown in Figure 10,

Thus, the toothed nut 7 can be operated not only by the toothed wrench 10 but also by the toothed wrench 10 . It can also be operated with a normal fixed wrench or an adjustable wrench.

Users can choose the operation method according to different situations.

[59] See Figure 14,

According to the needs of use, a cap 19 may be disposed on the upper surface of the nut 7, so that the upper surface of the nut 7 is closed, so that the screw hole 8 is not exposed, and the cap 19 may be arranged in a circular arc shape as shown in the figure. shape.

[60] 3. As shown in Figure 3,

The fastener further includes a pad 6 loosely coupled to the screw 1 or the nut 7 provided with the fastening teeth; the outer diameter of the screw 3 of the screw 1 is slightly larger than the aperture of the pad 6

The outer diameter of the unthreaded portion of the screw 3 of the screw 1 is slightly smaller than the diameter of the pad 6

Or the bell mouth 7 is provided at the lower end of the nut 7, and the outer diameter of the tenon 9 is slightly larger than the diameter of the pad 6, but slightly smaller than the counterbore 25 at the lower end of the inner hole of the pad 6.

The tenon 9 is embedded in the counterbore 25 without protruding the lower plane 26 of the pad 6.

[61] For the convenience and speed of use, the pad 6 used with the screw 1 can be set as a non-disengaged connection, so that the pad 6 and the screw 1 are connected loosely and without being separated, use 吋It can avoid the constant search and installation of the ordinary pad, and it is very beneficial in the operation of the screw 1 and can save the day. This screw can also be used with a common pad.

[62] FIG. 13 is a cross-sectional view showing the connection of the toothed nut 7 and the pad 6 and FIG. 15 is an enlarged view of FIG.

In order to be convenient and quick to use, the pad 6 used with the nut 7 can be set as a non-disengaged loose connection: the nut 7 and the pad 6 are configured to be mutually rotatable but not loose. The connection is made so that when the cymbal is used, the repeated operation of the conventional tamper can be avoided, which is very useful in the operation of the nut 7 frequently. This nut 7 can also be used with ordinary pads.

[63] This toothed nut 7 can be screwed directly into a normal screw; it can also be used with a toothed screw 1 to share a dedicated toothed wrench 10.

[64] 4.

A novel spanner wrench dedicated to the above-mentioned fastener provided with fastening teeth; the spanner wrench is provided with 1 or 2 head triggers and a handle 12; See Figure 16 for a side view; the yoke 11 is coupled to the shank 12. 17 is a partial cross-sectional plan view of the spur wrench 10, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. [65] The parts of the head wrench 11 of the toothed wrench 10 include a supporting tooth 14, a spring wire 15, and a cover plate 13; the cover plate 13 is disposed at the upper end of the trigger 11; the trigger 11 and the handle 12 are connected together; The seat 11 has a trigger hole 16 in the middle;

One or more of the teeth 14 are disposed in the corresponding recesses in the yoke 11,

The supporting teeth 14 and the trigger 11 are loosely connected;

The right end of the tooth 14 is moved up and down by a short distance from the left end or is received in the yoke 11 .

The right end of the tooth 14 protrudes under the pressure of the spring wire 15 in the trigger hole 16 of the trigger 11; one end of the spring wire 15 is fixed in the trigger 11 and the other end is pressed against the right end of the tooth 14 The left end of the supporting tooth 14 is disposed in a corresponding groove in the yoke 11 and is loosely connected with the yoke 11;

When the cover 13 is installed, the teeth 14 will not fall out; according to the needs of use, the seat

The portion of the 11 which is not in contact with the teeth 14 can be removed to form a U-shape, which can reduce the weight, as shown in FIG.

[66] Figures 18 and 19 are a bottom view and a left side view of the threaded cover plate 13,

The loading and unloading hole for the loading and unloading cover 13 can be provided thereon.

Or a polygon for loading and unloading the cover plate 13 may be disposed thereon, which approximates the watch cover;

Or, depending on the needs of use, the cover 13 can also be provided as a hinge, a snap-on type, or a hanging cover; or the cover 13 and the trigger 11 can be bonded or welded together in a non-detachable manner according to processing requirements.

[67] The right side view of the right end of the struts 14 of Fig. 17 is shown in Fig. 20, and has a groove or a small hole for inserting the spring wire 15 loosely fitted thereto.

[68] The lower end of the head of the tooth 14 shown in FIG. 20 has two chamfers or arcuate angles on the left and right sides, so that the use of the cymbal can easily fit the trigger hole 16 on the toothed screw 1 or the nut 7 ;

[69] Figure 21 shows the spring wire 15, the angle between the upper and lower ends is about 90 ° ~ 150 °;

The upper end can be inserted into a small hole or a small groove provided by the corresponding seat 11 or welded and fixed.

The lower end can be embedded or inserted into a groove or a small hole provided at a corresponding position on the supporting tooth 14, and the supporting tooth 14 is elastically pressed.

The right end head of the supporting tooth 14 is protruded into the lever hole 16; the upper and lower ends of the spring wire 15 shown in Fig. 21 may be arranged in an arc shape, or may be arranged such that the upper and lower ends are directly connected.

22 is a cross-sectional view taken along line AA of FIG. 17, in which the yoke 11 is hollowed out in a U-shape at the center to reduce the weight of the spur wrench 10, for convenience of processing or not. air.

[71] 5. Figure 23 is a partial cross-sectional top view of another example of the toothed wrench 10; the support 11 is placed in the wrench 11; There is one shaft hole at the left end of the tooth 22,

It is used to thread the shaft 23; the shaft 23 can be fixed to the cover plate 21 and the wrench 11 by means of loading and unloading screws or rivets, or welding; after the end of the shaft 23 is polished and coated,

It can be hardly seen; the arrangement of the spring wire 15 and the cover 21 in the toothed wrench 10 is the same as that of the above-described tooth wrench 10.

[72] When using a toothed wrench 10吋, put the trigger hole 16 on the toothed screw 1 or nut 7,

Then the tooth 14 enters the tooth groove 5 and bears against the convex tooth 4, and then the handle 12 of the tooth wrench is pulled by the needle.

The toothed screw 1 or the nut 7 is screwed in and tightened; when the toothed wrench 10 is used in reverse,

The reverse needle pulls the handle 12,

The toothed screw 1 or the nut 7 is loosened and unscrewed; when it encounters some parts that need to be quickly assembled, replaced, or replaced, or the screw and nut are in a small space, operate It is faster and faster, and it improves work efficiency.

[73] The lever 11 and the handle 12 can form a fixed connection, as shown in Figs.

[74] 6. According to the needs of use, for ease of use, the yoke 11 and the shank 12 can also be arranged to be detachably connected, and the head-replaceable shackle wrench 10 can be made: the outer circle of the yoke 11 a neck is disposed on the neck, a threaded hole (or a threaded head) is disposed on the neck, and a threaded head (or a threaded hole) is disposed at a position corresponding to the end of the handle 12, and the threaded head is screwed in the threaded hole; or can be reused The small screws and the pin are fixed so that the two are not loosened; the end of the handle 12 can also be arranged into a convex or square shape having a cross-sectional shape of a flat shape, a square shape, an elliptical shape, a circular shape, etc., and a spanner wrench is inserted. a neck having a correspondingly shaped groove or nose,

Then fix the two with screws or springs and marbles.

[75] 7.

A fixed head yoke 11 of the same or different size may be disposed at each end of the shank 12 to form a fixed double-headed wrench 10;

[76] 8.

A threaded head detachable yoke 11 of the same or different size can be provided at each end of the shank 12 to form a threaded detachable double-ended shank wrench for easy replacement.

[77] One insertion or detachable ejector 11 of the same or different size may be provided at each end of the shank 12 to form a detachable double-ended shank wrench, which is convenient for replacement and can be set according to the needs of use. [78] 9.

See Figures 24 and 25, which are top and side views, respectively, of the brace 35. The toothed wrench 1 further includes a support sleeve 35. The middle of the support sleeve 35 is a hexagonal or triangular, square, octagonal, etc., or a hole shaped to fit the screw head and the nut. It is larger than the outer diameter of the screw head 2 and the nut 7; the outer circumference of the bracing sleeve 3 5 is provided with fastening teeth 45, and the outer diameter of the bracing sleeve 35 is slightly smaller than the inner diameter of the trigger hole 16.

[79] Using 吋,

Insert the bracing sleeve 35 into the trigger hole 16 and place the hole in the middle of the bracing sleeve 35 on the screw or nut. When the handle 12 is pulled, the screw or nut can be tightened or loosened.

[80] 10.

A hook wrench for a toothed screw 1 which is dedicated to the above-mentioned fastener provided with fastening teeth; as shown in Figs. 26 and 27, which are respectively a side view of the hook wrench 36 and a top view; the hook wrench 36 includes 1 or 2 elbows 37 and a handle 12; the front end of the elbow 37 of the hook wrench 36 is provided with an inward hook 38;

One or two elbows 37 are coupled to one or both ends of the shank 12; the elbow 37 is semi-circular,

The inner radius is slightly larger than the outer radius of the head of the toothed screw 1; the hook tooth 38 is slightly smaller than the toothed groove 5 of the toothed screw 1; the convex hook tooth is similar to a trapezoidal or triangular shape.

[81] Using the cymbal, the elbow 37 of the hook wrench 36 is placed on the head of the toothed screw 1 or the toothed nut 7, and the hook teeth 38 are inserted into the gullet 5, and the shank 12 is pulled.

You can tighten or loosen the toothed screw 1 or the toothed nut 7 .

[82] The handle 12 shown in Fig. 17 has a flat cross-shaped I-shape.

It can also be set to a circular or elliptical shape, a square shape, a hexagonal shape, a tubular shape or the like according to the use.

Industrial applicability

[83]

Sequence table free content

[84]

Claims

Claim

A fastener provided with fastening teeth, comprising a fastener screw or a nut, characterized in that it further comprises a fastening tooth (45),

The fastening teeth (45) consist of a convex tooth (4) and a tooth groove (5), the convex tooth (4) and the tooth groove (5) are connected adjacently; the fastening tooth ( ₄₅ ) is set on the fastener screw (1) Or the outer circumference of the nut (7), the number of fastening teeth (45) is 4 or more; the convex tooth (4) and the tooth groove (5) have a rectangular or trapezoidal shape, a square shape; The longitudinal section of the groove (5) is trapezoidal or semi-circular, rectangular, square; the fastening teeth (45) are placed on the outer circumference of the screw head (2) or on the outer circumference of the nut (7)

2. The fastener provided with fastening teeth according to claim 1, wherein the fastener is a circular or hexagonal shape, a polygonal shape, a gear-shaped head screw (1), or a nut ( 7) ; fastening teeth

(45) Set on the outer circumference of the screw head (2) or nut (7).

3. The fastener provided with fastening teeth according to claim 1, wherein the fastener further comprises a screw (1) or a nut (7) provided with fastening teeth. The connected pad (6); the outer diameter of the screw (3) of the screw (1) is slightly larger than the hole diameter of the pad (6), and the outer diameter of the screw (3) of the screw (1) is slightly smaller than the outer diameter of the screw (3). The aperture of the pad (6), or the lower end of the nut (7) is provided with a flared tongue (9). The outer diameter of the tongue (9) is slightly larger than the diameter of the pad (6), but slightly smaller than the pad (6). The counterbore (25) at the lower end of the inner hole, the tenon (9) is embedded in the counterbore (25) without protruding the lower plane (26) of the pad (6).

4. A toothed wrench comprising a head and a handle, wherein: the toothed wrench is dedicated to the fastening toothed fastener of claim 1; the toothed wrench (10) is provided with 1 or 2 heads (11) and shank (12), the parts of the yoke (11) include the teeth (14), the spring wire (15), the cover (13); the cover (13) At the upper end of the trigger (11); the one or the two ends of the shank (11) and the shank (12) are connected together; the yoke (11) has a shank hole (16) in the middle; one or more struts (14) Set in the corresponding groove in the seat (11), the supporting teeth (14) and the lifting seat (11) are loosely connected; the right end of the supporting tooth (14) is moved up and down with the left end as a center. Or in the pull-in seat (11), the right end of the tooth (14) protrudes under the pressure of the spring wire (15) in the trigger hole (16) of the trigger (11); the spring wire (15) One end is fixed to the trigger (11) The inner end and the other end press the right end of the head of the supporting tooth (14); the left end of the supporting tooth (14) is disposed in the corresponding recess in the trigger (1 1) and is loosely coupled with the trigger (11).

The spanner wrench according to claim 4, wherein the left end of the supporting tooth 22) in the trigger (11) has a shaft hole, and the two ends of the shaft (23) passing through the shaft hole are fixed. On the cover (21) and the trigger (11).

The spanner wrench according to claim 4 or 5, characterized in that the trigger (11) and the handle (12) are arranged in a detachable connection, and the detachable connection is a threaded connection or a concavo-convex shape. Inlaid connection; the threaded connection is a threaded hole and a threaded head provided at a corresponding position of the end of the shank (11) and the shank (12);

The in-line connection is a protrusion and a groove provided at the corresponding ends of the wrench (11) and the handle (12), which are inlaid together, and then fixed by screws or springs and marbles.

7. A spanner wrench according to claim 4 or 5, characterized in that each of the two ends of the shank (12) has a fixed head shank (11) of the same or different size.

The spanner wrench according to claim 6, wherein each of the two ends of the handle has a threaded loading and unloading head plate (11) of the same or different size or a concavo-shaped head. Trigger (11

The spanner wrench according to claim 4 or 5, wherein the spanner wrench (10) further comprises a bracing sleeve (35), and the bracing sleeve (35) has a hexagonal shape in the middle or Triangular, square, octagonal, or a hole shaped to fit the screw head or nut, the inner diameter of the hole is slightly larger than the outer diameter of the screw head (2) and the nut (7); the outer sleeve of the support sleeve (35) is fastened The outer diameter of the tooth (45) and the brace (35) is slightly smaller than the inner diameter of the trigger hole (16).

10. A hook wrench, characterized in that: the hook wrench is dedicated to the fastener provided with fastening teeth according to claim 1; the hook wrench comprises 1 or 2 elbows (37) and a handle Part (12); The front end of the elbow (37) of the hook wrench (36) is provided with an inward hook (38); 1 or 2 elbows

(37) connected to the 1 or 2 end of the shank (12); the elbow (37) is semi-circular with an inner radius slightly larger than the outer radius of the head of the toothed screw head (2); (38) The tooth groove (5) of the head is slightly smaller than the toothed screw (1); the convex hook tooth is similar to a trapezoid or a triangle.