Tool hammer

Abstract

A tool hammer comprises a hammer head, a handle body, a positioning block, a fixing piece and a filling fixing unit. A tapered slotted hole is formed in the top surface of the hammer head, and an equal-diameter slotted hole is formed in the corresponding bottom surface; a combination part is arranged at one end of the handle body and is accommodated in the equal-diameter slotted hole; the positioning block is accommodated in the gradually-contracted slotted hole, and two corresponding side surfaces of the positioning block are gradually contracted and are respectively provided with a filling groove in a concave manner; the fixing piece sequentially penetrates through the positioning block and the combination part, so that the bottom surface of the positioning block abuts against the top surface of the combination part; and the filling and fixing unit is filled in the tapered groove hole, the equal-diameter groove hole and the filling groove. By means of the tool hammer, the connection strength between the hammer head and the handle body can be enhanced, loosening is effectively prevented, the overall durability of the tool hammer is improved, and the service life of the tool hammer is prolonged.

Description

Technical Field

[0001] This application relates to a tool hammer, and more particularly to a tool hammer that can strengthen the bond between the hammerhead and the handle. Background Technology

[0002] Existing tool hammers are used for various construction, repair and building work, and existing tool hammers consist of a hammerhead and a handle.

[0003] Specifically, the structure between the hammerhead and the handle often becomes loose due to long-term and repeated use. This problem makes existing tool hammers difficult to control and affects their effectiveness. A loose hammerhead may cause the striking direction and force to deviate from control when striking, and may also pose a risk of injury to the user or bystanders, especially when the hammerhead is completely separated from the handle.

[0004] Currently available tool hammers have not effectively solved the problem of loosening, therefore, there is indeed a need to improve existing tool hammers. Summary of the Invention

[0005] The main purpose of this application is to solve the problem that, after prolonged use, the hammerhead and handle of existing tool hammers are prone to loosening or separation.

[0006] To achieve the above objectives, one embodiment of this application provides a tool hammer, comprising a hammer head, a handle, a positioning block, a fixing member, and a filling fixing unit. The top surface of the hammer head has a tapered groove, and the corresponding bottom surface has a uniform-diameter groove. The uniform-diameter groove connects to the tapered groove, and the radial cross-sectional area of ​​the uniform-diameter groove is the minimum radial cross-sectional area of ​​the tapered groove. One end of the handle has a connecting portion, which is accommodated in the uniform-diameter groove. The positioning block is accommodated in the tapered groove, and its two corresponding sides are tapered and each has a recessed filling groove. The maximum radial cross-sectional area of ​​the positioning block is at least greater than the radial cross-sectional area of ​​the tapered groove at its half-position, and the minimum radial cross-sectional area of ​​the positioning block is less than the radial cross-sectional area of ​​the uniform-diameter groove. The fixing member is simultaneously fixed to the positioning block and the connecting portion, such that the bottom surface of the positioning block abuts against the top surface of the connecting portion. The filling fixing unit fills the tapered groove, the uniform-diameter groove, and the filling groove.

[0007] In another embodiment of this application, the surface of the joint has a plurality of annular grooves, and the filling fixing unit fills the plurality of annular grooves.

[0008] In another embodiment of this application, the plurality of annular grooves are arranged vertically, and a reinforcing rib axially disposed on the surface of the joint separates the plurality of annular grooves into two sides.

[0009] In another embodiment of this application, the joint is characterized in that the joint has a limiting groove, and an oil seal is fitted into the limiting groove. When the hammer head is engaged with the handle, the limiting groove is located in the equal diameter slot.

[0010] In another embodiment of this application, the connection between the handle and the joint has a support surface, and the support surface and the side wall surface of the joint are chamfered.

[0011] In another embodiment of this application, the joint has a first fixing hole, the positioning block has a second fixing hole axially extending through it, the fixing member is sequentially fixed in the second fixing hole and the first fixing hole, the fixing member is a locking part extending below the head, the radial area of ​​the locking part is smaller than the radial cross-sectional area of ​​the head, and the cross-sectional shape of the second fixing hole corresponds to the shape of the fixing member as T-shaped.

[0012] In another embodiment of this application, the handle is characterized by having a plurality of weight-reducing holes radially extending through it.

[0013] In another embodiment of this application, the handle body surface is characterized by having a plurality of anti-slip textures raised on it.

[0014] In another embodiment of this application, the handle body surface is characterized by having an anti-slip sleeve, and the anti-slip sleeve surface is provided with a plurality of anti-slip textures.

[0015] In another embodiment of this application, the handle is made of aluminum alloy or titanium alloy.

[0016] In another embodiment of this application, the positioning block is characterized in that it is made of heat-treated carbon steel.

[0017] In another embodiment of this application, the filling and fixing unit is characterized by being made of epoxy resin AB glue or thermoplastic polyurethane (TPU).

[0018] As described above, the effect of this application is to enhance the connection strength between the hammer head and the handle, effectively prevent loosening, and thus improve the overall durability and service life of the tool hammer. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a three-dimensional schematic diagram of the tool hammer of this application.

[0021] Figure 2 For the purposes of this application Figure 1 The cross-sectional view taken from the AA section line.

[0022] Figure 3 For the purposes of this application Figure 1 The cross-sectional view taken from the BB section line.

[0023] Figure 4 for Figure 1 A three-dimensional exploded view and a magnified view of some of the structures.

[0024] Figure 5 This is a side view of the tool hammer of this application and an enlarged view of part of its structure.

[0025] Explanation of reference numerals in the attached figures 10: Hammerhead; 11: Tapered groove hole; 12: Equal diameter slots; 20: Handle; 21: Joint; 22: First fixing hole; 23: Annular groove; 24: Reinforced ribs; 25: Limiting groove; 26: Oil seal; 27: Support surface; 28: Weight reduction hole; 29: Anti-slip sleeve; 291: Anti-slip texture; 30: Positioning block; 31: Filling groove; 32: Second fixing hole; 40: Fasteners; 41: Head; 42: Locking part; 50: Fill fixed unit. Detailed Implementation

[0026] To facilitate the explanation of the central ideas expressed in the above-mentioned application content section, specific embodiments are provided below. Various objects in the embodiments are depicted according to a scale, size, deformation, or displacement suitable for illustration, rather than being drawn to the scale of actual components, as will be stated prior.

[0027] Please refer to Figures 1 to 5This application discloses a tool hammer, comprising a hammer head 10, a handle 20, a positioning block 30, a fixing member 40, and a filling and fixing unit 50. The top surface of the hammer head 10 has a tapered groove 11, and the corresponding bottom surface has a constant-diameter groove 12. The constant-diameter groove 12 communicates with the tapered groove 11, and the radial cross-sectional area of ​​the constant-diameter groove 12 is the minimum radial cross-sectional area of ​​the tapered groove 11. One end of the handle 20 has a connecting portion 21, which has a first fixing hole 22. The connecting portion 21 is accommodated in the constant-diameter groove 12. The handle 20 is made of aluminum alloy or titanium alloy. The positioning block 30 is accommodated in the tapered groove 11. The two corresponding sides of the positioning block 30 are tapered and each has a recessed filling groove 31. The maximum radial cross-sectional area of ​​the positioning block 30 is... The area is at least greater than the radial cross-sectional area of ​​the tapered slot 11 at half position, the minimum radial cross-sectional area of ​​the positioning block 30 is less than the radial cross-sectional area of ​​the equal diameter slot 12, the positioning block 30 is axially provided with a second fixing hole 32, and the material of the positioning block 30 is heat-treated carbon steel; the fixing member 40 is sequentially fixed into the second fixing hole 32 and the first fixing hole 22, so that the bottom surface of the positioning block 30 abuts against the top surface of the joint 21; the filling fixing unit 50 fills the tapered slot 11, the equal diameter slot 12 and the filling groove 31, and the material of the filling fixing unit 50 is epoxy resin AB glue or thermoplastic polyurethane (TPU).

[0028] With the above structure, the diameter of the tapered slot 11 acts as a constraint, preventing the positioning block 30 from falling out from below the equal-diameter slot 12 after it is positioned in the tapered slot 11. Therefore, by simply using the fastener 40 to connect the positioning block 30 to the connecting part 21, the bonding strength of the handle 20 inside the hammer head 10 can be improved. Moreover, once the filling and fixing unit 50 completely fills the tapered slot 11, the equal-diameter slot 12, and the filling groove 31, the handle 20 will be more firmly bonded to the hammer head 10.

[0029] Please continue reading. Figure 4 The surface of the joint 21 has multiple annular grooves 23, which are filled and fixed by the filling and fixing unit 50. The annular grooves 23 are arranged vertically, and are separated on both sides by a reinforcing rib 24 axially arranged on the surface of the joint 21. Through this structure, the annular grooves 23 increase the overall surface area of ​​the joint 21. Therefore, when the filling and fixing unit 50 is used to fill the annular grooves 23, it can effectively improve the fixing strength and further strengthen the overall structure of the tool hammer. Secondly, the reinforcing rib 24 not only more effectively separates the annular grooves 23, reducing the impact of pressure on a single area and improving the overall strength of the structure, but also provides additional support, strengthening the overall structural strength of the joint 21, thereby reducing potential deformation after prolonged use.

[0030] Please continue reading. Figure 4 A limiting groove 25 is provided on the side of the annular groove 23 opposite to the connecting hammer head 10 at the joint 21. An oil seal 26 is fitted onto the limiting groove 25. When the hammer head 10 is engaged with the handle 20, the limiting groove 25 is located within the equal-diameter slot 12. The purpose of the oil seal 26 is not only to increase the friction between the joint 21 and the wall of the equal-diameter slot 12, thereby making the engagement between the hammer head 10 and the handle 20 more secure, but also to prevent the filling fixing unit 50 from leaking out from the bottom of the equal-diameter slot 12.

[0031] Please continue reading. Figure 4 and Figure 5 The connection between the handle 20 and the joint 21 has a support surface 27. The support surface 27 and the side wall of the joint 21 are chamfered rather than right-angled. The reason for this design is that if the support surface 27 and the side wall of the joint 21 are right-angled, the structure is more likely to break under pressure. The chamfer design can effectively distribute the pressure and reduce the pressure at a single point, thereby improving the stability and durability of the structure.

[0032] Please continue reading. Figure 4 The fastener 40 has a locking portion 42 extending below a head 41. The radial area of ​​the locking portion 42 is smaller than the radial cross-sectional area of ​​the head 41. The cross-sectional shape of the second fixing hole 32 corresponds to the shape of the fastener 40 and is T-shaped. With the above structure, the T-shaped second fixing hole 32 allows the fastener 40 to easily slide into or out of the second fixing hole 32, improving the efficiency of component installation and disassembly; and it can also make the fastener 40 stably confined within the second fixing hole 32, making it less prone to shaking.

[0033] Please continue reading. Figure 5 and paired Figure 4 The handle 20 has an anti-slip sleeve 29 on its surface, and the anti-slip sleeve 29 has multiple anti-slip textures 291 raised on its surface. In addition, although not specifically shown in the illustration, the surface of the handle 20 can also have the anti-slip textures 291 raised directly, without the need for the anti-slip sleeve 29. Regardless of the method used, the anti-slip textures 291 can increase the frictional resistance when the user holds the tool hammer, enabling more stable use of the tool hammer, providing additional comfort and protection, and reducing the possibility of loss of control due to slippage during use.

[0034] Please continue reading. Figure 5 The handle 20 has multiple weight-reducing holes 28 that are radially provided, which can reduce the overall weight of the handle 20.

[0035] With the above structure, this application has the following advantages: 1. Solving the loosening problem: Due to the design of the positioning block 30 and the fixing part 40, the connection strength between the hammer head 10 and the handle 20 can be enhanced and loosening can be effectively prevented, thereby improving the durability and service life of the tool hammer.

[0036] 2. Enhanced safety: By fixing the fastener 40 through the second fixing hole 32 and the first fixing hole 22, and with the filling fixing unit 50 filling the tapered groove hole 11, the equal diameter groove hole 12 and the filling groove 31, the possibility of the hammer head 10 and the handle 20 becoming loose is reduced, making the connection between the hammer head 10 and the handle 20 more stable, reducing the safety risk caused by the hammer head 10 falling off, improving the safety of the user or bystander, and reducing the maintenance cost of the tool.

[0037] The embodiments described above are merely illustrative of this application and are not intended to limit the scope of protection of this application. Any modifications or variations made that do not violate this application are within the scope of protection intended for this application.

Claims

1. A tool hammer, characterized in that: a hammer head, having a tapered slot hole on a top surface, and a corresponding bottom surface having an equal diameter slot hole, which is in communication with the tapered slot hole, and the cross-sectional area of the equal diameter slot hole is the minimum cross-sectional area of the tapered slot hole; a handle body, having a coupling portion at one end, which is accommodated in the equal diameter slot hole; a positioning block, accommodated in the tapered slot hole, the corresponding two side surfaces of the positioning block are tapered and recessed with a filling slot respectively, the maximum cross-sectional area of the positioning block is at least greater than the cross-sectional area of the tapered slot hole at a half position, and the minimum cross-sectional area of the positioning block is smaller than the cross-sectional area of the equal diameter slot hole; a fixing member, fixed to the positioning block and the coupling portion at the same time, so that the bottom surface of the positioning block is in close contact with the top surface of the coupling portion; and a filling and fixing unit, filled in the tapered slot hole, the equal diameter slot hole and the filling slot.

2. The tool hammer of claim 1, wherein, The surface of the coupling portion has a plurality of ring grooves, and the filling and fixing unit fills the plurality of ring grooves.

3. The tool hammer of claim 2, wherein, The plurality of ring grooves are arranged in an up-down manner and are separated into two sides by a reinforcing rib arranged axially on the surface of the coupling portion.

4. The tool hammer of claim 3, wherein, The coupling portion has a limiting slot, and an oil seal is sleeved in the limiting slot, and when the hammer head is combined with the handle body, the limiting slot is located in the equal diameter slot hole.

5. The tool hammer of claim 4, wherein, The connecting portion of the handle body and the coupling portion has a supporting surface, and the supporting surface and the side wall surface of the coupling portion are chamfered.

6. The tool hammer of claim 5, wherein, The coupling portion has a first fixing hole, the positioning block is axially penetrated by a second fixing hole, the fixing member is sequentially fixed in the second fixing hole and the first fixing hole, the fixing member has a head portion and a locking portion extended below the head portion, the radial area of the locking portion is smaller than the cross-sectional area of the head portion, and the cross-sectional shape of the second fixing hole corresponds to the shape of the fixing member, which is T-shaped.

7. The tool hammer of claim 6, wherein, The handle body is radially penetrated by a plurality of weight reduction holes.

8. The tool hammer of claim 7, wherein, The surface of the handle body is convexly provided with a plurality of anti-slip patterns.

9. The tool hammer of claim 7, wherein, The surface of the handle body has an anti-slip sleeve, and the surface of the anti-slip sleeve is convexly provided with a plurality of anti-slip patterns.

10. The tool hammer of claim 1, wherein, The material of the handle body is aluminum alloy or titanium alloy.

11. The tool hammer of claim 1 wherein, The material of the positioning block is heat-treated carbon steel.

12. The tool hammer of claim 1, wherein, The material of the filling and fixing unit is epoxy resin AB glue or thermoplastic polyurethane.

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