CN218965282U

CN218965282U - Structure of wrench rod

Info

Publication number: CN218965282U
Application number: CN202223472537.7U
Authority: CN
Inventors: 谢智庆
Original assignee: Kabo Tool Co
Current assignee: Kabo Tool Co
Priority date: 2022-01-03
Filing date: 2022-12-23
Publication date: 2023-05-05
Anticipated expiration: 2032-12-23
Also published as: TWI805169B; JP3241006U; TW202327823A; DE202022107088U1

Abstract

The utility model relates to a wrench rod body structure, comprising: a working head, one end of which is provided with a pin joint part; the pin joint part is provided with a through hole; one end of the rod body is provided with an ear part and a body part, and the ear part is provided with a connecting hole; the connecting hole is pivoted with the through hole, so that the working head can be pivoted on the rod body; the perforating unit is penetrated on the body of the rod body, the penetrating direction of the perforating unit is the same as the penetrating direction of the connecting hole of the lug part, and the perforating unit forms a set length on the body; the perforating unit can reduce the weight of the rod body, and the body part has a continuous structure in the force application direction of the rod body, so that the rod body can still maintain the force application strength.

Description

Structure of wrench rod

Technical Field

The utility model relates to a manual wrench, in particular to a wrench rod structure which can reduce the weight of a wrench rod body and does not influence the operation strength.

Background

Referring to FIG. 1, a conventional wrench, particularly an H-shank wrench 10, has a shank 11 and a working head 12; the handle 11 is a solid rod, the front end of the handle 11 is provided with two lugs 111, the front end of the working head 12 is provided with a working part 121, the rear end is provided with a connecting end 122 opposite to the working part, and the working head 12 is pivoted between the two lugs 111, so that the working head 12 can rotate relative to the handle 11, and a working force is applied to the working part 121 through the handle 11, so that a workpiece can be relatively fastened or unfastened.

However, since the handle 11 is subjected to a large force, the handle 11 is a solid rod, and is heavy; the weight of the handle is a burden to the user during the operation or the moving, which makes the operation and the use difficult.

Disclosure of Invention

The main object of the present utility model is to provide a wrench rod structure, which can reduce the weight of the wrench rod, reduce the operation load, and not affect the strength of the wrench rod.

Another object of the present utility model is to provide a wrench rod structure, which reduces the weight of the rod through the perforated unit having the same direction as the direction of force application, and maintains a complete structure in the direction of force application, thereby reducing the weight and maintaining the operation strength.

To achieve the above object, the present utility model provides a wrench rod structure comprising:

a working head, one end of which is provided with a working part and the other end of which is provided with a pivoting part; the working part can be combined on a workpiece; the pin joint part is provided with a through hole;

a rod body, one end of which is provided with an ear part and the other end of which is a holding part; a body portion formed between the ear portion and the grip portion; the lug part is provided with a connecting hole; the joint hole is overlapped with the through hole and is connected with the through hole in a penetrating way through a pin joint piece, so that the working head can be pivoted on the rod body, the body part is provided with a length along the axial direction of the rod body, and is provided with a height along the radial direction, and the height direction is perpendicular to the axial direction of the joint hole of the lug part;

the perforating unit is provided with one or a plurality of perforations and penetrates through the body part of the rod body, the penetrating direction of the perforating unit is the same as the penetrating direction of the connecting hole of the lug part, and the perforating unit is provided with a set length along the longitudinal direction of the body part.

The body part of the wrench rod body structure provided by the utility model can penetrate through the rod body, so that the weight of the rod body can be reduced, and the whole strength of the rod body can be maintained because the body part still has a continuous structure body in the direction of the rod body stress.

Preferably, the length of the perforation unit is between one sixth and nine tenths of the length of the body.

Preferably, the length of the perforation unit is greater than half the length of the body.

Preferably, the installation length of the perforation unit is greater than the length of the holding part.

Preferably, the perforation unit is formed by one or at least two elongated perforations which are spaced apart on the body.

Preferably, the perforated unit is formed with a plurality of perforations which are spaced apart on the body.

Preferably, the plurality of perforations may be the same size or different sizes, and the spacing between the plurality of perforations may be equal or unequal.

Drawings

FIG. 1 is a perspective view of a conventional wrench;

FIG. 2 is a perspective view of a preferred embodiment of the present utility model;

FIG. 3 is an exploded perspective view of a preferred embodiment of the present utility model;

FIG. 4 is a side view of a preferred embodiment of the present utility model showing the scale and location of the elongated perforations;

fig. 5 is a transverse cross-sectional view taken along line 5-5 of fig. 3, showing the configuration of the body in the direction of application of force.

Fig. 6 is a top view of the first preferred embodiment of the present utility model, showing that the axis of the hole and the penetrating direction of the perforating unit of the rod are parallel to the direction of the force applied by the wrench.

FIG. 7 is a side view of a second preferred embodiment of the present utility model, showing each of the perforations being circular perforations and their location.

FIG. 8 is a side view of a third preferred embodiment of the present utility model showing the variation in the location and diameter of each of the circular perforations.

FIG. 9 is a side view of a fourth preferred embodiment of the present utility model showing the location of each of the circular perforations and their variation in spacing.

FIG. 10 is a side view of a fifth preferred embodiment of the present utility model showing the location of each of the elongated perforations.

Fig. 11 is a side view of a sixth preferred embodiment of the present utility model.

Name corresponding to each label in the figure:

10 spanner

11 handle

111 lug

12 working head

121 working part

122 connection end

20 working head

21 working portion

22 pin joint part

221 through hole

30 rod body

31 ear

311 lugs

312 joint hole

313 pivot joint

32 grip portion

33 body part

331 top surface

332 bottom surface

40 perforation unit

41 elongated perforations

42 circular perforations

L length

H thickness

Length of A hole

Height of B hole

D set length

F force application direction

X-axis direction

Detailed Description

Referring to fig. 1 to 6, a preferred embodiment of a wrench rod structure according to the present utility model is shown, the wrench comprises:

a working head 20 having a working portion 21 at a front end and a pivoting portion 22 at a rear end; the working portion 21 is a hexagonal cylinder in the present embodiment and protrudes vertically from the working head 20, the working portion 21 can be sleeved on a sleeve (not shown) or a workpiece, and the sleeve can be driven to rotate by rotating the working portion 21 to generate a screwing or unscrewing action. The pivot portion 22 has a through hole 221, and an axial direction of the through hole 221 is perpendicular to an axial direction of the working portion 21.

A rod 30, which is a solid round rod, one end of which is provided with an ear 31, the other opposite end is provided with a holding part 32, a body 33 is defined between the holding part 32 and the ear 31, the ear 31 is formed by two lugs 311, and a connecting hole 312 is arranged on the two lugs 311; the pivot portion 22 is disposed between the two lugs 311, and the through hole 211 coincides with the connecting hole 312, and is connected by a pivot 313 after coinciding, so that the working head 20 is pivoted on the rod 30, and can rotate by a predetermined angle with the pivot 313 as the axis; when the user operates, the user holds the holding portion 32 of the rod 30 and applies force along two sides of the axial direction of the receiving hole 312 with the working portion 21 of the working head 20 as the axis, as shown in fig. 6, in the structure of the present utility model, when the wrench is pulled in the F direction to rotate the sleeve, the axial direction X of the receiving hole 312 of the ear 31 is parallel to the force application direction F of the holding portion 32 of the rod 30. The body 33 has a length L between the ear 31 and the grip 32, which is multiple times the length of the grip 32, preferably the length L of the body 33 is 2 to 10 times, preferably 3 to 6 times, the length of the grip 32; the body 33 defines a top surface 331 and a bottom surface 332 on the upper and lower sides, and the body 33 has a thickness H between the top surface 331 and the bottom surface 331.

A perforation unit 40, please refer to fig. 4, 5 and 6, penetrating the body 33, wherein the perforation unit 40 is formed by a perforation or a plurality of perforations, and the penetrating direction of the perforation unit 40 penetrating the body 33 is the same as the penetrating direction of the connecting hole 312 of the ear 31, i.e. the penetrating direction of the perforation unit 40 is parallel to the axial direction X of the connecting hole 312 or the force application direction F born by the holding portion 32, so that

The penetrating direction of the punching unit 40 is the same as the force direction F borne by the rod 30, so that the body 33 can maintain a continuous structure on the arm of the user holding the force direction F of the holding portion 32, that is, between the top surface 331 or the bottom surface 332 and the punching unit 40, so as to ensure that the stress strength of the rod 30 is not affected by the punching unit 40, and the punching unit 40 can reduce the overall weight of the rod 30, and reduce the operation burden of the user without affecting the operation strength. The perforation unit 40 is an elongated perforation 41 in the present embodiment, and its two ends are circular ends, but not limited thereto. The elongated through hole 41 has a hole length a and a hole height B along the length direction and the thickness direction of the body 33, and the ratio of the hole length a of the elongated through hole 41 to the length L of the body 33 is 0.5-0.9, in this embodiment, the length ratio is 0.8; the ratio of the hole height B of the elongated through hole 41 to the thickness H of the body 33 is 0.6-0.9, in this embodiment 0.8. The elongated through hole 41 forms a set length D on the body 33, which in this embodiment is the hole length a of the through hole 41. In practice, the perforation unit 40 is provided with a length D ranging from one sixth to nine tenths of the length of the body, preferably greater than half the length L of the body 33; and the set length D is preferably longer than the length of the grip portion 32.

In use, the working portion 21 of the working head 20 is mounted on a workpiece (not shown), after the angle between the working head 20 and the rod 30 is adjusted, a user can apply a force to the end of the rod 30, and rotate about the working portion 21 of the working head 20 as an axis, so that a corresponding torque force can be formed by combining the force applied to the rod 30 with the length of the rod 30, and the workpiece can be screwed or unscrewed. When the rod 30 is pulled, as shown in fig. 6, the force strength of the rod 30 is not affected because the body 33 maintains a connecting structure at the moment arm position opposite to the force application direction F, that is, at the position between the top surface 331 of the body 33 and the punching unit 40 and the position between the bottom surface 332 and the punching unit 40; however, since the perforated unit 40 is reduced in size by passing through the body 33, the overall weight of the rod 30 can be reduced, and the weight of the user holding the rod 30 is prevented from being too heavy, so that the operation load of the user can be reduced by arranging the perforated unit 40.

Please refer to fig. 7, which shows a second preferred embodiment of the present utility model, wherein the main structure is the same as that of the previous embodiment, and the same symbols are used for the same structure, and the description is omitted, wherein:

the perforation unit 40 is formed by a plurality of circular perforations 42, the hole length A and the hole height B of each circular perforation 42 are the same, the circular perforations 42 are arranged on the body 33 at equal intervals and equal size, the ratio of the sum of the hole lengths A of the circular perforations 42 to the length of the body 33 is 0.6, and the ratio of the hole height B and the thickness H of each circular perforation 42 is 0.7; the perforations 42 of the perforation unit 40 are distributed on the shaft 33 at intervals to form a set length D, and likewise, the set length D of the perforation unit 40 is between one sixth and nine tenths of the length of the shaft, and preferably, the set length D is greater than half the length L of the shaft 33; and the set length D is preferably longer than the length of the grip portion 32. The body 33, which does not pass through the circular through holes 42, has a structure for reinforcing the upper and lower continuous bodies, so that the rod 30 is prevented from being deformed when being subjected to the upper and lower pressures.

In addition, referring to fig. 8 and 9, which are the third and fourth preferred embodiments of the present utility model, the circular through holes 42 are formed at different positions of the body portion 33 with different intervals or variations in aperture, and as shown in fig. 8, the hole length a (hole height B) of the central position of the rod 30 is the largest, and the hole length a (hole height B) of the central position of the rod is smaller toward the front and rear sides (the direction of the ear portion 31 and the grip portion 32) of the body portion 33; in addition, as shown in fig. 9, the interval between the circular through holes 42 may be changed, and the larger the interval between the circular through holes 42 is, the larger the interval between the circular through holes 42 is (the direction of the ear 31 and the grip 32) the more toward the front and rear sides of the body 33, the larger the interval between the circular through holes may be toward the center of the body 33 and/or the smaller the aperture may be, depending on the design. The proportional relationship between the set length D of the perforation unit 40 and the body 33 and the grip 32 is as described above.

Referring to fig. 10, a fifth preferred embodiment of the present utility model has the same main structure as that of the first preferred embodiment, and the same symbols are used for the same structure, wherein:

the perforation unit 40 is two elongated perforations 41 disposed on the body 33, the two elongated perforations 41 are disposed at the front end of the body 33 near the ear 31 and the rear end near the grip 32, respectively, and a longer interval is provided between the two elongated perforations 41 at the center of the body 33; in addition, referring to fig. 11, which shows a sixth preferred embodiment of the present utility model, the perforation unit 40 is also two elongated perforations 41, and the two elongated perforations 41 are equally spaced. In the embodiment of fig. 10 or 11, the two through holes 41 formed in the shaft 33 are spaced apart from each other on the shaft 33, and form a set length D on the shaft 33.

The wrench rod body structure provided by the utility model can reduce the weight of the rod body through the arrangement of the perforating unit, compared with the conventional solid handle part structure, the wrench rod body structure has heavier weight, the operation load can be reduced through the weight reduced by the perforating unit, and the body part still has a continuous structure in the force application direction, so that the integral strength of the rod body is not influenced, and the original operation strength can be maintained.

The above embodiments are merely illustrative of the technical means of the present utility model, and are not limited thereto, but are all considered as the protection scope of the present utility model.

Claims

1. The utility model provides a spanner body of rod structure which characterized in that includes:

the working head is provided with a working part at one end and a pivoting part at the other end; the working part can be combined on a workpiece; the pin joint part is provided with a through hole;

the rod body is provided with an ear part at one end and a holding part at the other end, a body part is defined between the ear part and the holding part, and a connecting hole is arranged on the ear part; the joint hole is overlapped with the through hole of the working head and then is connected with the working head in a penetrating way through a pin joint piece, so that the working head is pin-jointed on the rod body, the body part is provided with a length between the lug part and the holding part, in addition, the body part is provided with a top surface and a bottom surface, a thickness is arranged between the top surface and the bottom surface, and the thickness direction is perpendicular to the axial direction of the joint hole of the lug part;

the perforating unit is provided with one or a plurality of perforations and penetrates through the body of the rod body, the penetrating direction of the perforating unit is the same as the penetrating direction of the connecting hole of the lug, and the perforating unit is provided with a set length along the longitudinal direction of the body.

2. The wrench stem structure of claim 1, wherein: the length of the perforation unit is between one sixth and nine tenths of the length of the body.

3. The wrench stem structure of claim 1, wherein: the set length of the perforation unit is greater than half the length of the body.

4. The wrench stem structure of claim 1, wherein: the setting length of the perforation unit is longer than the length of the holding part.

5. The wrench stem structure of claim 1, wherein: the perforation unit is at least one long perforation, and has a hole length along the length direction of the body part and a hole height along the thickness direction of the body part, wherein the hole length is larger than the hole height.

6. The wrench stem structure of claim 1, wherein: the perforation unit is formed by at least two elongated perforations.

7. The wrench stem structure of claim 1, wherein: the perforation unit is provided with a plurality of circular perforations, each circular perforation has a hole length along the length direction of the body part and a hole height along the thickness direction of the body part, and the hole length of each circular perforation is equal to the hole height.

8. The wrench stem structure of claim 7, wherein: the hole length of each circular perforation is the same, and the interval between the circular perforations is equal interval.

9. The wrench stem structure of claim 7, wherein: the hole lengths of the circular perforations are different, and the intervals among the circular perforations are equal.

10. The wrench stem structure of claim 7, wherein: the hole lengths of the circular perforations are the same, and the intervals among the circular perforations are unequal intervals.

11. A wrench stem structure according to any one of claims 1 to 10, wherein: the ratio of the sum of the hole lengths of the perforation units to the length of the body is between 0.5 and 0.9.

12. A wrench stem structure according to any one of claims 1 to 10, wherein: the ratio of the hole height of the perforation unit to the thickness of the rod body is between 0.6 and 0.9.

13. A wrench stem structure according to any one of claims 1 to 10, wherein: the length of the body is multiple times that of the holding part.

14. The wrench stem structure of claim 1, wherein: the holding part of the rod body is provided with a force application direction which is parallel to the axial direction of the lug connection hole and the penetrating direction of the perforating unit.