CN219255479U

CN219255479U - Damping hammer

Info

Publication number: CN219255479U
Application number: CN202223038162.3U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Jiuwei Technology Suzhou Co ltd
Current assignee: Jiuwei Technology Suzhou Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-06-27
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the technical field of hand tools, and discloses a damping hammer which comprises a hammer head and a hammer handle; the hammer hammers the workpiece along a first hammering direction; the first hammering direction is perpendicular to the length direction of the hammer handle; the hammer handle comprises a front section and a rear section; the hammer head is positioned at one end of the front section far away from the rear section; the rear section is configured to be held by a user; the rear section comprises an inner wall, a cavity surrounded by the inner wall and a reinforcing rib suspended in the cavity; the reinforcing ribs are configured to support the inner wall when the inner wall is elastically deformed; the included angle formed by the length direction of the reinforcing rib and the length direction of the hammer handle is 0-10 degrees. The rear section of the hammer handle is of a hollow structure, and vibration transmitted by the hammer head can be absorbed through deformation of the rear section of the hammer handle, so that discomfort caused by reaction force of a user is reduced.

Description

Damping hammer

Technical Field

The application relates to the technical field of hand tools, in particular to a damping hammer.

Background

Hammers are commonly used as a hand tool for driving nails or striking workpieces. Most of the existing hammers are solid hammer handles and are hard in hammer handle materials, vibration and reaction force are easily transmitted to hands of users through the hammer handles in actual work, and particularly, the hands and the arms of the users are numb when the hard workpieces are hammered, so that use experience is affected, and diseases such as scapulohumeral periarthritis can be caused after long-term use.

Disclosure of Invention

The application provides a damper hammer, hammer shank rear segment are hollow structure and reserve the deformation space for the energy that the hammer head transmitted to the hammer shank is used for the elastic deformation of hammer shank rear segment, reduces the vibrations of user's hand by a wide margin, thereby reduces the discomfort that the user arouses because of the reaction force.

The application provides a damping hammer, which comprises a hammer head and a hammer handle; the hammer hammers the workpiece along a first hammering direction; the first hammering direction is perpendicular to the length direction of the hammer handle; the hammer handle comprises a front section and a rear section; the hammer head is positioned at one end of the front section far away from the rear section; the rear section is configured to be held by a user;

the rear section comprises an inner wall, a cavity surrounded by the inner wall and a reinforcing rib suspended in the cavity; the reinforcing ribs are configured to support the inner wall when the inner wall is elastically deformed; the included angle formed by the length direction of the reinforcing rib and the length direction of the hammer handle is 0-10 degrees.

Further is: the ratio of the length of the cavity to the length of the hammer handle is 0.3-0.5.

Further is: the reinforcing rib divides the cavity into a first cavity and a second cavity; the ratio of the cross-sectional area of the cavity to the cross-sectional area of the rear section is 0.4-0.6, the ratio of the cross-sectional area of the first cavity to the cross-sectional area of the second cavity is 0.8-1.2, and the cross-section is perpendicular to the length direction of the hammer handle.

Further is: the reinforcing ribs and the rear section are of an integrated structure or a split structure.

Further is: the thickness of the inner wall of the rear section is 4-8mm; the thickness of the reinforcing rib is 2-4mm.

Further is: the front section comprises a filling cavity and a reinforcing rod arranged in the filling cavity; the hammer handle is made of a first material; the reinforcing rod is made of a second material; the second material has a stiffness greater than the stiffness of the first material.

Further is: the damping hammer further comprises a tail plug; the tail plug is arranged at one end of the rear section far away from the front section; the tail plug is in interference fit with the inner wall of the rear section.

Further is: the tail plug is made of a third material; the third material has a stiffness greater than the stiffness of the first material.

Further is: a groove is formed at one end of the hammer head, which is close to the hammer handle; the front section and the reinforcing rod are at least partially inserted into the groove; one end of the front section, which is far away from the rear section, is provided with a protrusion in interference fit with the inner wall of the groove.

Further is: the reinforcing rod is inserted into the recess to a depth deeper than the depth of the front section inserted into the recess, as viewed in a direction perpendicular to the length direction of the hammer handle.

The beneficial effects of this application are: the rear section of the hammer handle which is held by a user is arranged to be of a hollow structure, and the vibration transmitted to the hammer handle from the hammer head can be absorbed through the elastic deformation of the rear section in actual use, so that the vibration transmitted to the hand of the user is reduced. The strengthening rib supports the cavity along the hammering direction perpendicular to tup, and the direction of the reaction force that the perpendicular to tup received promptly for the deformation of hammer handle back end in the reaction force direction is comparatively easy, is favorable to the hammer handle to absorb the vibrations that the tup transmitted, can improve the intensity of back end simultaneously, provides reliable support to user's palm.

Drawings

FIG. 1 is a schematic view of a damper hammer according to one embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the damper hammer shown in FIG. 1 taken along line A-A;

FIG. 3 is a schematic cross-sectional view of a damper hammer according to yet another embodiment of the present application, taken along line A-A;

fig. 4 is a schematic cross-sectional view of the damper hammer shown in fig. 1 along line B-B.

The reference numerals in the drawings are: 100. a hammer head; 200. a hammer handle; 210. a front section; 211. a reinforcing rod; 220. a rear section; 221. reinforcing ribs; 230. a cavity; 231. a first chamber; 232. a second chamber; 300. a tail plug; f1, a first hammering direction; l, the length direction of the hammer handle.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

The present application provides a damper hammer, as shown in fig. 1 to 4, including a hammer head 100 and a hammer handle 200; the hammer handle 200 includes a front section 210 and a rear section 220; the hammer head 100 is located at an end of the front section 210 remote from the rear section 220; in actual use, a user holds the rear section 220 of the hammer handle 200 to swing the damper hammer, so that the hammer head 100 blows a workpiece along the first hammering direction F1, wherein the first hammering direction F1 is perpendicular to the length direction of the hammer handle 200.

When the hammer is used for beating a workpiece, the reaction force applied by the hammer can cause the hammer head and the hammer handle to vibrate and finally be transmitted to the hand of a user through the hammer handle to cause numbness of the hand of the user, wherein the rear section 220 of the hammer handle 200 of the damper hammer comprises an inner wall, a cavity 230 surrounded by the inner wall and a reinforcing rib 221 suspended in the cavity 230; the hollow structure can absorb the shock transmitted from the front section 210 through elastic deformation, thereby reducing discomfort of the user's hand. The reinforcing ribs 221 are configured to support the inner wall when the inner wall is elastically deformed; the reinforcing ribs 221 support the cavity 230 along the hammering direction perpendicular to the hammer head 100, i.e., perpendicular to the direction of the reaction force applied to the hammer head 210, so that the deformation of the rear section 220 in the reaction force direction is easier, the hammer handle 200 is facilitated to absorb the vibration transmitted from the hammer head 100, and meanwhile, the strength of the rear section 220 can be improved, and reliable support is provided for the palm of the user.

As shown in fig. 2 and 3, the reinforcing rib 221 extends substantially along the length direction of the hammer shank 200, and in this embodiment, the length direction of the reinforcing rib 221 coincides with the length direction L of the hammer shank 200, that is, the angle between the length direction of the reinforcing rib 221 and the length direction L of the hammer shank 200 is 0 °, and in another embodiment, the angle between the length direction of the reinforcing rib 221 and the length direction L of the hammer shank 200 is 3 °, and in other embodiments, the angle may be any angle of 5 °, 7 °, or 10 °.

The damping hammer of this application absorbs vibrations through the elastic deformation of cavity 230 and realizes the shock attenuation, sets up cavity 230 in the back section 220 that the user held and can advance the whole focus of damping hammer, more does benefit to hammering nail or work piece, and the length ratio of cavity 230 in this embodiment is 0.4 with the length of hammer handle 200, and this proportion can also be 0.3, 0.5 etc. in other embodiments.

On the above basis, as shown in fig. 2 and 3, the reinforcing ribs 221 divide the cavity 230 into a first cavity 231 and a second cavity 232; the rear section 220 must have a certain strength to be convenient for a user to hold while absorbing shock, and the ratio of the cross-sectional area of the cavity 230 perpendicular to the length direction L of the hammer shank 200 to the cross-sectional area of the rear section 200 in this embodiment is 0.4-0.6, and the closer the cross-section is to the hammer head 100, the smaller the cross-sectional area ratio in the cross-section is.

As shown in fig. 2 and 4, in this embodiment, the length direction of the reinforcing rib 221 coincides with the length direction L of the hammer shank 200, that is, the angle between the length direction of the reinforcing rib 221 and the length direction L of the hammer shank 200 is 0 °, and the ratio of the cross-sectional area of the first cavity 231 in any cross-section perpendicular to the length direction L of the hammer shank 200 to the cross-sectional area of the second cavity 232 in the cross-section is 1. In another embodiment, as shown in fig. 3, the angle between the length direction of the reinforcing rib 221 and the length direction L of the hammer shank 200 is not 0 °, and the ratio of the cross-sectional area of the first cavity 231 in the cross-section perpendicular to the length direction L of the hammer shank 200 to the cross-sectional area of the second cavity 232 in the cross-section is 0.8-1.2, the closer the cross-section is to the hammer head 100, the larger the cross-sectional area ratio is. In other embodiments, the angle between the length direction of the reinforcing rib 221 and the length direction L of the hammer shank 200 is not 0 °, and the ratio of the cross-sectional area of the first cavity 231 in the cross-section perpendicular to the length direction L of the hammer shank 200 to the cross-sectional area of the second cavity 232 is 0.8-1.2, the closer the cross-section is to the hammer head 100, the smaller the cross-sectional area ratio is.

On the basis of the above, the thickness of the inner wall of the rear section 220 is 4-8mm; the thickness of the reinforcing ribs 221 is 2-4mm. The thickness of the inner wall of the rear section 220 in this embodiment is 6mm, the thickness of the reinforcing ribs 221 is 3mm, and the reinforcing ribs 221 and the rear section 220 are in an integral structure. In other embodiments, the inner wall thickness of the rear section may also be 4mm or 8mm. In another embodiment, the inner wall of the rear section 220 is provided with a bar-shaped groove, and the reinforcing ribs 221 are clamped into the bar-shaped groove to realize fixed connection.

The hammer head 100 in this example has a hammer face on one side for nailing or hammering a workpiece and a claw structure on the other side for driving a nail. According to the principle of leverage, when the nail is lifted by the claw structure, the side of the hammer head 100 away from the hammer shank 200 serves as a fulcrum, the front section 210 of the hammer shank 200 receives a large force, and the rear section 220 receives a small force, so that the front section 210 requires higher rigidity and strength than the rear section 220. As shown in fig. 2, the front section 210 includes a filling cavity and a reinforcing bar 211 provided in the filling cavity; the hammer handle 220 is made of a first material; the reinforcing bar 211 is made of a second material; the second material has a stiffness greater than the stiffness of the first material. In this embodiment, the first material is glass fiber, the second material is polypropylene plastic, and in other embodiments, the first material may be other materials with high rigidity and good toughness.

On the basis of the above, as shown in fig. 1, the damper hammer further includes a tail plug 300; the tail plug 300 is mounted at an end of the rear section 220 remote from the front section 210; the tail plug 300 is an interference fit with the inner wall of the rear section 220. The tail plug 300 is made of a third material; the third material has a stiffness greater than the stiffness of the first material. The tail plug 300 of this embodiment is made of steel or iron and can be used to hammer nails or workpieces to facilitate a user's relatively gentle striking and adjustment of the nail or workpiece in place. In other embodiments the third material may also be other higher hardness materials, such as aluminum alloys.

On the basis of the above, as shown in fig. 2 and 3, a recess is formed at one end of the hammer head 210 near the hammer handle 220; the front section 210 and the reinforcing bar 221 are at least partially inserted into the groove; the end of the front section 210 remote from the rear section 220 has a protrusion that is an interference fit with the inner wall of the recess. The reinforcing bar 221 is inserted into the groove to a depth deeper than the depth of the front section 210 into the groove, as viewed in a direction perpendicular to the length direction of the hammer handle 220.

The foregoing description is only a preferred embodiment of the present application, and is not intended to limit the utility model to the particular embodiment disclosed, but is not intended to limit the utility model to the particular embodiment disclosed, as the equivalent of some alterations or modifications can be made without departing from the scope of the present application.

Claims

1. A damping hammer comprises a hammer head and a hammer handle; the hammer hammers the workpiece along a first hammering direction; the first hammering direction is perpendicular to the length direction of the hammer handle; the hammer handle comprises a front section and a rear section; the hammer head is positioned at one end of the front section far away from the rear section; the rear section is configured to be held by a user;

the method is characterized in that: the rear section comprises an inner wall, a cavity surrounded by the inner wall and a reinforcing rib suspended in the cavity; the reinforcing ribs are configured to support the inner wall when the inner wall is elastically deformed; the included angle formed by the length direction of the reinforcing rib and the length direction of the hammer handle is 0-10 degrees.

2. A damper hammer according to claim 1, wherein: the ratio of the length of the cavity to the length of the hammer handle is 0.3-0.5.

3. A damper hammer according to claim 1, wherein: the reinforcing rib divides the cavity into a first cavity and a second cavity; the ratio of the cross-sectional area of the cavity to the cross-sectional area of the rear section is 0.4-0.6, the ratio of the cross-sectional area of the first cavity to the cross-sectional area of the second cavity is 0.8-1.2, and the cross-section is perpendicular to the length direction of the hammer handle.

4. A damper hammer according to claim 3, wherein: the reinforcing ribs and the rear section are of an integrated structure or a split structure.

5. A damper hammer according to claim 4, wherein: the thickness of the inner wall of the rear section is 4-8mm; the thickness of the reinforcing rib is 2-4mm.

6. A damper hammer according to claim 1, wherein: the front section comprises a filling cavity and a reinforcing rod arranged in the filling cavity; the hammer handle is made of a first material; the reinforcing rod is made of a second material; the second material has a stiffness greater than the stiffness of the first material.

7. A damper hammer according to claim 6, wherein: the damping hammer further comprises a tail plug; the tail plug is arranged at one end of the rear section far away from the front section; the tail plug is in interference fit with the inner wall of the rear section.

8. A damper hammer according to claim 7, wherein: the tail plug is made of a third material; the third material has a stiffness greater than the stiffness of the first material.

9. A damper hammer according to claim 6, wherein: a groove is formed at one end of the hammer head, which is close to the hammer handle; the front section and the reinforcing rod are at least partially inserted into the groove; one end of the front section, which is far away from the rear section, is provided with a protrusion in interference fit with the inner wall of the groove.

10. A damper hammer according to claim 9, wherein: the reinforcing rod is inserted into the recess to a depth deeper than the depth of the front section inserted into the recess, as viewed in a direction perpendicular to the length direction of the hammer handle.