CN220051721U

CN220051721U - Damping auxiliary handle and power tool

Info

Publication number: CN220051721U
Application number: CN202321471423.2U
Authority: CN
Inventors: 汪照明; 蒲元维
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2023-06-10
Filing date: 2023-06-10
Publication date: 2023-11-21
Anticipated expiration: 2033-06-10

Abstract

The utility model relates to a damping auxiliary handle and a power tool, wherein the damping auxiliary handle comprises: a handle; a connector comprising a first mounting portion for detachable connection to a tool body of a power tool and a second mounting portion for connection to the handle; and the damping mechanism is arranged between the handle and the connecting piece. The shock absorption auxiliary handle can reduce shock sensation transmitted to the hand by the tool main body, has strong universality and is beneficial to simplifying and compacting the structure of the tool main body.

Description

Damping auxiliary handle and power tool

Technical Field

The utility model relates to the technical field of power tools, in particular to a damping auxiliary handle and a power tool.

Background

Power tools including electric hammers, percussion drills, electric drills, etc. are widely used in various fields of industrial manufacture, in which electric hammers are used for drilling holes in concrete, floors, brick walls and stone materials by impacting a drill bit with compressed gas using the principle of piston movement. When the electric hammer is used, the power is larger, the generated vibration is larger, the numbness and fatigue of the arms of the user are easily caused, and the arms of the user are damaged after long-term use.

The electric hammer and the electric pick generally adopt a built-in counterweight device and a spring to play a role in damping, and the whole machine has complex structure, larger volume, increased weight and inconvenient maintenance.

Disclosure of Invention

Based on the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a vibration-damping auxiliary handle, which can reduce the shock transmitted from a tool body to a hand, has a high versatility, and is advantageous for simplifying and compacting the structure of the tool body.

Therefore, the utility model provides the following technical scheme.

The present utility model provides a shock-absorbing auxiliary handle, comprising:

a handle;

a connector comprising a first mounting portion for detachable connection to a tool body of a power tool and a second mounting portion for connection to the handle;

and the damping mechanism is arranged between the handle and the connecting piece.

Preferably, the auxiliary damping handle comprises a first fastening piece, and the first fastening piece sequentially penetrates through the second mounting part and the damping mechanism and then is connected to the handle.

Preferably, the damping mechanism comprises a mounting seat and a damping component which are connected, and the mounting seat is clamped between the handle and the connecting piece.

Preferably, the damping component comprises a mounting shaft, a balancing weight and two springs, wherein the balancing weight is sleeved on the periphery of the mounting shaft, the mounting shaft is connected to the mounting seat, the two springs are symmetrically arranged on two sides of the balancing weight, and two ends of the springs are respectively abutted to the mounting seat and the balancing weight.

Preferably, the mounting seat is U-shaped.

Preferably, the number of the shock absorbing assemblies is a plurality, and the plurality of the shock absorbing assemblies are symmetrically arranged about the central axis of the handle.

Preferably, the mounting shaft extends in an axial direction of the tool body.

Preferably, the connecting member is a hoop which is bent to form the first mounting portion.

Preferably, the damping auxiliary handle comprises a supporting seat, one end of the supporting seat is abutted against the damping mechanism, and the other end of the supporting seat is abutted against the outer wall of the tool main body; the two ends of the connecting piece respectively penetrate through the two side walls of the supporting seat.

The utility model also provides a power tool comprising a tool body and the shock absorbing auxiliary handle for the power tool.

The utility model has the following technical effects:

the utility model provides a damping auxiliary handle, a user can select the damping auxiliary handle according to the requirement, the shock feeling transmitted to the hand by the tool main body is relieved through the damping auxiliary handle, and compared with the existing scheme of arranging a damping mechanism in the tool main body, the damping auxiliary handle is beneficial to simplifying and compacting the structure of the tool main body. In addition, the damping mechanism is arranged between the handle and the connecting piece, the structure of the existing auxiliary handle is changed less, and even the structure of the existing auxiliary handle is not required to be changed, so that the universality is strong

Drawings

FIG. 1 is a schematic perspective view of a shock absorbing auxiliary handle of the present utility model;

FIG. 2 is an exploded view of the structure of the auxiliary handle of the present utility model;

FIG. 3 is a schematic exploded view of the shock absorbing auxiliary handle of the present utility model;

FIG. 4 is a cross-sectional view of the structure of the vibration-damping auxiliary handle of the present utility model;

fig. 5 is a schematic perspective view of a shock absorbing auxiliary handle according to the present utility model.

Description of the reference numerals

1. A shock absorption auxiliary handle;

11. a handle; 111. a third mounting hole;

12. a connecting piece; 121. a first mounting portion; 122. a second mounting portion;

13. a damping mechanism; 131. a mounting base; 1311. a second mounting hole; 132. a shock absorbing assembly; 1321. a mounting shaft; 1322. balancing weight; 1323. a spring;

14. a first fastener;

15. a support base; 151. penetrating through the through hole; 152. an arc surface; 153. a limit protrusion; 154. a limit groove;

16. a bolt;

17. a base; 171. a fifth mounting hole; 172. and a limiting arm.

Detailed Description

In order to make the technical scheme and the beneficial effects of the utility model more obvious and understandable, the following detailed description is given by way of example. Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

In the description of the present utility model, unless explicitly defined otherwise, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience of simplifying the description of the present utility model, and do not indicate that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, i.e., are not to be construed as limiting the present utility model.

In the present utility model, the terms "first", "second" are used for descriptive purposes only and are not to be construed as relative importance of the features indicated or the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly include at least one such feature. In the description of the present utility model, "plurality" means at least two; "plurality" means at least one; unless otherwise specifically defined.

In the present utility model, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, unless otherwise specifically limited. For example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless explicitly defined otherwise, a first feature "on", "above", "over" and "above", "below" or "under" a second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact via an intermediary. Moreover, a first feature "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the level of the first feature is higher than the level of the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the level of the first feature is less than the level of the second feature.

The power tool of the present utility model will be described in detail with reference to fig. 1 to 5.

In the present embodiment, the power tool includes a tool main body (not shown in the drawings), a main handle (not shown in the drawings), and a shock absorbing auxiliary handle, the tool main body being configured to form an impact force to impact a workpiece. As shown in fig. 1 to 5, the shock absorbing auxiliary handle 1 includes a grip 11, a connecting member 12, and a shock absorbing mechanism 13, and as shown in fig. 2, the connecting member 12 includes a first mounting portion 121 and a second mounting portion 122, the second mounting portion 122 is configured to be connected to the grip 11, the first mounting portion 121 is configured to detachably mount the grip 11 on a tool body, and the grip 11 is configured to be held by a user. As shown in fig. 1 and 4, a damper mechanism 13 is provided between the handle 11 and the connecting member 12, the damper mechanism 13 serving to reduce the shock that the tool body transmits to the user's hand through the damper assist grip 1.

Through adopting above-mentioned technical scheme, the user can select to use shock attenuation auxiliary handle 1 according to the demand, and on the one hand shock attenuation auxiliary handle 1 cooperates with the main handle so that user's both hands grip together, on the other hand can alleviate the shock sensation that the instrument main part passed to the hand through shock attenuation auxiliary handle 1, moreover, for the current scheme at the inside damping machanism that disposes of instrument main part, this scheme is favorable to the simple structure of instrument main part, compactification. In addition, the damping mechanism 13 is arranged between the handle 11 and the connecting piece 12, so that the structure of the existing auxiliary handle is changed little, and even the structure of the existing auxiliary handle is not required to be changed, and the universality is strong.

In one embodiment, as shown in fig. 2 to 4, the auxiliary handle 1 includes a first fastener 14 (e.g., a screw), and the first fastener 14 is connected to the handle 11 after passing through the second mounting portion 122 and the damping mechanism 13 in sequence. Specifically, the second mounting portion 122 is a first mounting hole, the damping mechanism 13 is provided with a second mounting hole 1311, the handle 11 is provided with a third mounting hole 111, and the first fastener 14 is screwed into the third mounting hole 111 after being sequentially connected with the first mounting hole and the second mounting hole 1311, so that the assembly is simple and quick. In this scheme, utilize original second installation department 122 on connecting piece 12 and the original third mounting hole 111 on handle 11 to assemble damper 13, need not to change the structure of current auxiliary handle, the commonality is strong.

In an embodiment, as shown in fig. 1 to 5, the damping mechanism 13 includes a mounting base 131 and a damping component 132 that are connected, where the mounting base 131 is clamped between the handle 11 and the connecting piece 12, so that the damping mechanism 13 can be fixed by a clamping force formed after the handle 11 is assembled with the connecting piece 12, and an additional assembly structure is not required to be arranged on the damping mechanism 13, so that a processing procedure of the damping mechanism 13 can be simplified. Of course, the damping mechanism 13 may be interposed between the handle 11 and the connector 12 to perform pre-positioning installation, and then fixed by a fastener.

Further, as shown in fig. 1 and 2, the shock absorbing assembly 132 includes a mounting shaft 1321, a balancing weight 1322 sleeved on the periphery of the mounting shaft 1321, and two springs 1323, wherein the mounting shaft 1321 is connected to the mounting base 131, the two springs 1323 are symmetrically arranged on two sides of the balancing weight 1322, two ends of the springs 1323 are respectively abutted to the mounting base 131 and the balancing weight 1322, and the balancing weight 1322 and the two springs 1323 are matched to realize shock absorption.

Further, as shown in fig. 1 and 2, the mounting base 131 is U-shaped, the mounting base 131 is simple and compact in structure, and the supporting walls on two sides of the mounting base 131 are used for mounting the mounting shaft 1321.

Further, the number of the shock absorbing members 132 is plural, and the plurality of shock absorbing members 132 are symmetrically disposed about the central axis of the handle 11 to enhance the shock absorbing effect. Preferably, as shown in fig. 3, in order to facilitate the miniaturization design of the shock-absorbing auxiliary handle 1, the number of shock-absorbing members 132 is two, and the two shock-absorbing members 132 are symmetrically disposed about the central axis of the handgrip 11.

Further, as shown in fig. 1, the mounting shaft 1321 extends in the axial direction of the tool body. In operation, the tool body is generally provided with a strong vibration feeling in the axial direction, and the mounting shaft 1321 is limited to extend in the tool body axial direction, so that the two springs 1323 are located on both sides of the weight 1322 in the axial direction, respectively, and the vibration generated in the tool body in the axial direction can be effectively damped.

In an embodiment, as shown in fig. 2, the connecting piece 12 is a hoop, the hoop is bent to form the first mounting portion 121, the structure of the hoop is simple, the assembly is convenient, and the tool body can be held tightly by bending the connecting piece 12 during the assembly. Of course, the structure of the connecting member 12 is not limited to the anchor ear, and may be other detachable assembly structures such as a snap structure.

In one embodiment, as shown in fig. 1 to 5, the shock absorbing auxiliary handle 1 includes a support base 15, one end of which abuts against the shock absorbing mechanism 13, and the other end of which abuts against the outer wall of the tool body. Two side walls of the supporting seat 15 are respectively provided with a through hole 151, and two ends of the connecting piece 12 respectively penetrate through the corresponding through holes 151 and then extend into the supporting seat 15 to be connected with the damping mechanism 13. In this way, the stability of the assembly of the shock-absorbing auxiliary handle 1 with the tool body can be improved by the support base 15, so as to avoid the shock-absorbing auxiliary handle 1 from being displaced during the vibration of the tool body.

Further, as shown in fig. 2, an end of the supporting seat 15 facing the tool body is an arc surface 152 so as to closely fit the tool body.

Further, as shown in fig. 1, the side wall of the mounting seat 131 and the side wall of the supporting seat 15 of the damper mechanism 13 are fixed by bolts 16.

Further, as shown in fig. 2 to 4, the shock absorbing auxiliary handle 1 further includes a base 17 for supporting the bottom of the supporting seat 15. Specifically, at least one outer wall of the supporting seat 15 is provided with two limiting protrusions 153, a limiting groove 154 is formed between the two limiting protrusions 153, two sides of the base 17 are bent towards the supporting seat 15 to form limiting arms 172, and the limiting arms 172 are clamped in the limiting grooves 154 to play a role in pre-positioning in the assembly of the supporting seat 15 and the base 17. The supporting seat 15 is provided with a fourth mounting hole, the base 17 is provided with a fifth mounting hole 171, the connecting piece 12 passes through the through hole 151 and then is positioned in the supporting seat 15, and the first fastening piece 14 sequentially passes through the second mounting part 122, the fourth mounting hole, the fifth mounting hole 171 and the second mounting hole 1311 and then is screwed to the third mounting hole 111 so as to complete fixation.

It should be understood that the above examples are illustrative and are not intended to encompass all possible implementations encompassed by the claims. Various modifications and changes may be made in the above embodiments without departing from the scope of the disclosure. Likewise, the individual features of the above embodiments can also be combined arbitrarily to form further embodiments of the utility model which may not be explicitly described. Therefore, the above examples merely represent several embodiments of the present utility model and do not limit the scope of protection of the patent of the present utility model.

Claims

1. A shock absorbing auxiliary handle for a power tool, characterized in that the shock absorbing auxiliary handle (1) comprises:

a handle (11);

a connecting member (12) including a first mounting portion (121) and a second mounting portion (122), the first mounting portion (121) being configured to be detachably connected to a tool body of a power tool, the second mounting portion (122) being configured to be connected to the handle (11);

and a damper mechanism (13) provided between the handle (11) and the connector (12).

2. The auxiliary handle according to claim 1, wherein the auxiliary handle (1) comprises a first fastener (14), and the first fastener (14) is connected to the handle (11) after passing through the second mounting portion (122) and the damping mechanism (13) in sequence.

3. The shock absorbing auxiliary handle according to claim 1, wherein the shock absorbing mechanism (13) comprises a mounting seat (131) and a shock absorbing assembly (132) which are connected, and the mounting seat (131) is clamped between the handle (11) and the connecting piece (12).

4. A shock absorbing auxiliary handle according to claim 3, wherein the shock absorbing component (132) comprises a mounting shaft (1321), a balancing weight (1322) sleeved on the periphery of the mounting shaft (1321) and two springs (1323), the mounting shaft (1321) is connected to the mounting base (131), the two springs (1323) are symmetrically arranged on two sides of the balancing weight (1322), and two ends of the springs (1323) are respectively abutted to the mounting base (131) and the balancing weight (1322).

5. A shock absorbing auxiliary handle according to claim 3, wherein the mounting base (131) is U-shaped.

6. The shock absorbing auxiliary handle according to claim 4, wherein the number of shock absorbing members (132) is plural, and a plurality of the shock absorbing members (132) are symmetrically arranged about the central axis of the handgrip (11).

7. The shock absorbing auxiliary handle as defined in claim 4, wherein the mounting shaft (1321) extends in an axial direction of the tool body.

8. The shock absorbing auxiliary handle according to any one of claims 1-7, wherein the connector (12) is a hoop which is bent to form the first mounting portion (121).

9. The auxiliary handle according to claim 8, characterized in that the auxiliary handle (1) comprises a support seat (15) with one end abutting against the damping mechanism (13) and the other end for abutting against the outer wall of the tool body; the two ends of the connecting piece (12) respectively penetrate through the two side walls of the supporting seat (15).

10. A power tool comprising a tool body and a shock absorbing auxiliary handle for a power tool as claimed in any one of claims 1 to 9.