TWM644426U - Double-sleeve automatic tip-tail wrench structural improvement - Google Patents

Abstract

An improved structure of a two-mouth automatic pointed tail wrench, including a ratchet wheel and a stopper. A ratchet ring part with continuous teeth is provided on the outer peripheral surface of the ratchet wheel. The alveolar angle between the teeth of the ratchet ring part is greater than 90° degree, the upper end of the block is provided with two ratchet parts at intervals and can selectively engage with the ratchet ring part, and the angle of each tooth of the ratchet part is less than 90 degrees, and the ratchet part There is a meshing yaw distance with a position difference of more than 1 degree between the ratchet ring part, so that the working performance can be effectively improved through the angle difference between the two, and there is a position between the ratchet tooth part and the ratchet ring part The meshing yaw distance with a difference of more than 1 degree can cooperate with the snugness to achieve high torque performance during the meshing.

Description

Structural improvement of two-mouth automatic pointed-tail wrench

The invention relates to a ratchet wrench, especially to the structural improvement of a two-mouth automatic pointed-tail wrench.

According to, in order to improve the efficiency of maintenance and disassembly on the market, it is common to use hand tools such as ratchet wrench as a tool for basic dismantling of objects. Fixed fit, in order to achieve the effect when the ratchet wrench is repeatedly twisted and used. However, the angles between the outer teeth of the ratchet wrench and the stopper teeth of the current ratchet wrench are the same at 90 degrees. If the angle is too close, it will cause inconvenience in operation, and in severe cases, it will even make it impossible to move, which will further reduce the operating efficiency and lack practicality. It is really necessary to improve.

In view of this, the author has been engaged in the manufacturing, development and design of related products for many years. After careful design and careful evaluation for the above goals, he has finally obtained a truly practical creation.

The technical problem that this creation intends to solve is to provide an improved structure of a two-mouth automatic pointed-tail wrench that can improve actuation and high torque performance in view of the above-mentioned deficiencies in the prior art.

The improved structure of the above two automatic pointed tail wrenches includes a ratchet wheel and a stopper. A ratchet ring part with continuous teeth is provided on the outer peripheral surface of the ratchet wheel. Between the teeth of the ratchet ring part The angle of the tooth slot is greater than 90 degrees, the upper end of the block is provided with two ratchet parts at intervals and can selectively engage with the ratchet ring part, and the angle of each tooth of the ratchet part is less than 90 degrees, In addition, there is an engagement yaw distance between the ratchet portion and the ratchet ring portion with a potential difference greater than 1 degree.

Preferably, the ratchet and the stopper are mounted on a wrench body, the wrench body has a working part, and the working part is provided with a slot through the upper and lower end faces for assembling the ratchet. An accommodating groove is arranged below for accommodating the stopper. The accommodating groove is provided with two openings on both sides, and an accommodating hole is further provided in the center of the bottom surface of the accommodating groove, and a spring is arranged in the accommodating hole. And a bead leaning against the top of the spring.

Preferably, the number of teeth of the ratchet ring part is more than 36 teeth, and it is preferably designed to be 72 teeth.

Preferably, the teeth of the detent part are sequentially formed along a concave arc shape, so that the angles between the teeth are smaller than the angles of the teeth, wherein the angles between the teeth are between Between 81 degrees and 85 degrees, the preferred angle is 83 degrees, and the tooth angle is between 87 degrees and 89 degrees, and the preferred angle is 88 degrees.

Preferably, the lower end of the block is symmetrically provided with two detent slopes, the angle between the two detent slopes is 136 degrees, and a stop is provided at the center of the lower end between the two detent slopes. Stop tip, the angle of the stop tip is 105 degrees.

Compared with the effect of the previous technology: the number of teeth of the ratchet ring part of the ratchet is more than 36 teeth, which can greatly increase the contact area between the ratchet and the stopper, further increase the torque and reduce the working motion, so that it can work in a narrow space, and the outer periphery of the ratchet The ratchet ring part is designed with the angle of each tooth slot greater than 90 degrees, while the ratchet part of the stopper is designed with the angle of each tooth less than 90 degrees, so that the working performance can be effectively improved through the difference between the two angles , and there is a position between the ratchet part and the ratchet ring part The meshing yaw distance with a difference of more than 1 degree can cooperate with the snugness to achieve high torque performance during the meshing.

10: Ratchet

11: ratchet ring

20: Block

21: Gear part

22: Detent slope

23: stop tip

24: shaft bolt

30: Wrench body

31: Work Department

32: Grooving

33: storage tank

34: port

35:Accommodating hole

36: spring

37: beads

[Picture 1] is a three-dimensional view of the ratchet wrench created by this work.

[Picture 2] is an exploded view of the ratchet wrench created in this work.

[Picture 3] is a partially enlarged schematic diagram of the ratchet created in this work.

[Picture 4] is a partially enlarged schematic diagram of the block created in this work.

[Fig. 5] is a sectional view of the ratchet wrench combination of this creation.

[Figure 6] is a schematic diagram of the engagement between the ratchet and the stopper of this creation.

[Picture 7] is a schematic diagram of the movement direction adjusted by pulling the stopper of this creation.

In order to enable your review committee members to have a better understanding and understanding of the purpose, characteristics and functions of this creation, please cooperate with the [simplified illustration] to describe in detail below:

First of all, as shown in Figures 2, 3, and 4, an improved structure of a two-mouth automatic pointed-tail wrench includes a ratchet 10 and a stopper 20. A ratchet ring with continuous teeth is provided on the outer peripheral surface of the ratchet 10. Part 11, the number of teeth of the ratchet ring part is more than 36 teeth, preferably 72 teeth, wherein the alveolar angle A between the teeth of the ratchet ring part 11 is greater than 90 degrees, the stopper 20 The upper end is provided with two ratchet parts 21 at intervals and can be selectively engaged with the ratchet ring part 11. The teeth of the ratchet parts 21 are sequentially formed along a concave arc shape, so that the The alveolar angle B between each of the teeth of the latching tooth part 21 is smaller than each of the tooth angles, wherein the alveolar angle is between 81 degrees and 85 degrees, and the preferred angle is 83 degrees. The tooth angle C is between 87 degrees and 89 degrees, and the preferred angle is 88 degrees, and the lower end of the stopper 20 is symmetrically provided with two braking slopes 22, and the angle D between the two braking slopes 22 is 136 degrees. and the center of the lower end A stop tip 23 is protruded between the two locking slopes 22, and the angle E of the stop tip 23 is 105 degrees.

From Figures 1 to 5, the above-mentioned ratchet 10 and stopper 20 are matched and assembled on a wrench body 30. The wrench body 30 has a working part 31, and the working part 31 is provided with a penetrating upper and lower end surface. The through groove 32 is used for assembling the ratchet 10, and an accommodating groove 33 is provided below the through groove 32 for accommodating the block 20. The accommodating groove 33 is provided with two ports 34 through both sides. An accommodating hole 35 is further set at the central part of the bottom surface of the groove 33, and the accommodating hole 35 accommodates a spring 36 and a bead 37 that leans against the top of the spring 36, whereby the catch 21 of the stopper 20 It is directed towards the through groove 32 and assembled into the accommodating groove 33, and uses a shaft bolt 24 to pass through the working part 31 and the center of the block 20 to pivotally connect, while the two sides of the stop tip 23 at the lower end of the block 20 are Positioned against the bead 37, the ratchet 10 is fixed in the through groove 32 by using a C-shaped buckle, and passes through the ratchet ring part 11 on the outer periphery and one of the ratchet parts 21 of the stopper 20 engagement, thereby completing a ratchet wrench.

The use of its structure, please continue to see from the 6th and 7th figures, the wrench body 30 uses the ratchet 10 assembled by the working part 31 to fit and nest on the workpiece nut, and the ratchet 10 and the ratchet ring part The cooperation has the form of fitting connection and jumping out of idling, and the wrench body 30 can be reversed and reset to an angle that is easy to apply force to rotate, and then repeatedly actuated to achieve the locking or loosening of the workpiece nut, and the stopper The two ends of the block 20 pass through the opening 34 on both sides of the accommodation groove 33, and can be switched directly through the two ends of the block 20, so as to have a two-way driving effect. In addition, the ratchet ring of the ratchet 10 The number of teeth on the part 11 is more than 36 teeth, which can greatly increase the contact area, further enhance the torque and reduce the working movement, so that it can work in a narrow space, and because the ratchet ring part 11 on the outer periphery of the ratchet wheel 10 adjusts the angle of each tooth groove The design is greater than 90 degrees, and the tooth part 21 of the stopper 20 is designed to have an angle of each tooth less than 90 degrees, so that the work performance can be effectively improved through the difference between the two angles, and the There is an engagement deflection distance F between the ratchet portion 21 and the ratchet ring portion 11 with a position difference greater than 1 degree, which can be closely matched to achieve high torque performance during engagement.

To sum up, this creation has indeed achieved a breakthrough structural design, and has improved new content, and at the same time can achieve industrial applicability and progress, and this creation has not been seen in any publications, and it is also novel. In line with the provisions of the relevant laws and regulations of the Patent Law, I filed a new patent application in accordance with the law, and I sincerely ask the examination committee of the Jun Bureau to grant a legal patent right, and I pray for it.

Only the above is only one of the preferred embodiments of this creation, and should not be used to limit the scope of the implementation of this creation; that is, all the equal changes and modifications made according to the scope of the patent application for this new model should still belong to this new model. within the scope of the patent.

10: Ratchet

11: ratchet ring

20: Block

21: Gear part

22: Detent slope

23: stop tip

24: shaft bolt

30: Wrench body

31: Work Department

32: Grooving

33: storage tank

34: port

35:Accommodating hole

37: beads

Claims (6)

An improved structure of a two-mouth automatic pointed tail wrench, including a ratchet wheel and a stopper. A ratchet ring part with continuous teeth is provided on the outer peripheral surface of the ratchet wheel. The alveolar angle between the teeth of the ratchet ring part is greater than 90° degree, the upper end of the block is provided with two ratchet parts at intervals and can selectively engage with the ratchet ring part, and the angle of each tooth of the ratchet part is less than 90 degrees, so that through the ratchet The angle difference between the ring part and the ratchet part is to improve the working performance, and there is a meshing deflection distance with a position difference greater than 1 degree between the ratchet part and the ratchet ring part, so as to further achieve high torque performance. The improved structure of the two-mouth automatic pointed-tail wrench as described in claim 1, wherein the ratchet and the stopper are mounted on a wrench body, the wrench body has a working part, and the working part is provided with a penetrating upper and lower end surface The groove is used for assembling the ratchet, and an accommodation groove is provided under the groove for accommodating the stopper. The accommodation groove is provided with two openings on both sides, and a An accommodating hole, the accommodating hole accommodates a spring and a bead leaning against the top of the spring. The improved structure of the two-mouth automatic pointed-tail wrench as described in claim 2, wherein the stopper is pivotally installed in the accommodating groove with a shaft bolt, and the two ends of the stopper pass through the two openings. The improved structure of the two-mouth automatic pointed-tail wrench as described in Claim 1, wherein the number of teeth on the ratchet ring part is more than 36 teeth, preferably 72 teeth. The improved structure of the two-mouthed automatic pointed-tail wrench as described in claim 1, wherein, each tooth of the said catch tooth is formed sequentially along a concave arc shape, so that the angle of the tooth alveolar between each tooth is smaller than each The tooth angle, wherein the alveolar angle is between 81° and 85°, preferably 83°, and the tooth angle is between 87° and 89°, preferably 88°. The improved structure of the two-mouth automatic pointed-tail wrench as described in Claim 1, wherein the lower end of the stopper is symmetrically provided with two detent slopes, the angle between the two detent slopes is 136 degrees, and the central position of the lower end is And a stop tip is protruded between the two braking slopes, and the angle of the stop tip is 105 degrees.

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