Multifunctional tool
By designing a detachable hammer head and handle, combined with an internal hexagonal socket and a pre-positioning structure, the problem of the hammer's single function is solved, enabling the multi-functional use of a hammer and wrench, adapting to complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张卫杰
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-05
AI Technical Summary
Existing hammers have limited functionality and cannot meet the multi-functional requirements of complex usage scenarios.
A multi-functional tool was designed, including a detachably connected hammer head and hammer handle. An internal hexagonal socket is installed at the end of the hammer handle, and the detachable connection between the hammer head and the hammer handle is achieved by locking screws and a pre-positioning structure. The internal hexagonal socket is replaceable, and the combination of a telescopic pin and a non-circular structure improves the fixing effect.
It enables the multi-functional use of a hammer and wrench, and allows for easy replacement of the appropriate size hex socket according to the on-site environment, thus expanding the tool's range of applications and functions.
Smart Images

Figure CN224196747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tool technology, and in particular to a multi-functional tool. Background Technology
[0002] A hammer is a tool used to strike objects, causing them to move or deform. It is most commonly used to hammer nails, straighten objects, or break them apart. Hammers come in various forms, the most common being a handle and a top. One side of the top is flat for striking, while the other side is the hammerhead. The hammer is the primary striking tool, consisting of a hammerhead and a handle.
[0003] Existing hammers have relatively limited functionality, supporting only the traditional functions of simple hammering and nail pulling. For example, a hammer disclosed in Chinese Utility Model Patent No. CN201483463U has a simple structure. In terms of functional expansion, it only supports a retractable handle, meaning that the length of the handle can be adjusted according to usage needs to adapt to different usage environments, and the use of the hammer will not be affected by the handle being too long or too short.
[0004] It is evident that traditional hammers are less practical for various complex usage scenarios and are increasingly unable to meet people's multifunctional requirements for tools. Utility Model Content
[0005] In view of the problem that existing hammers have limited functionality, the purpose of this utility model is to provide a multifunctional tool to at least partially solve the above-mentioned problems.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A multi-functional tool includes a hammer head and a hammer handle detachably connected to the hammer head. An internal hexagonal socket is installed at the tail end of the hammer handle, and a locking screw for fixing the internal hexagonal socket is screwed onto the outer wall of the tail end of the hammer handle. A locking screw hole adapted to the locking screw is provided on the internal hexagonal socket. A pre-positioning structure is also provided between the internal hexagonal socket and the hammer handle.
[0008] In a preferred embodiment, the pre-positioning structure is a ball spring pin fixed on the internal hexagonal sleeve, and the hammer handle is provided with a positioning groove that matches the ball spring pin.
[0009] In a preferred embodiment, the hammer handle has a hollow structure.
[0010] In a preferred embodiment, the end of the internal hexagonal sleeve facing the hammer handle is provided with a connecting block whose outer edge has a non-circular structure, and the tail end of the hammer handle is correspondingly provided with a connecting hole adapted to the connecting block.
[0011] In a preferred embodiment, the hammer head is provided with a threaded mounting hole that matches the head of the hammer handle, and the head of the hammer handle is provided with a retractable pin. The cross-section of the pin head of the retractable pin is non-circular. The side wall of the head of the hammer handle and the inner wall of the threaded mounting hole of the hammer head are both provided with pin holes that match the pin head of the retractable pin.
[0012] In a preferred embodiment, both ends of the retractable pin are inserted into the hammer head, and the axis of the retractable pin intersects perpendicularly with the axis of the hammer handle.
[0013] In a preferred embodiment, the hammerhead is a claw hammer.
[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: the multi-functional tool provided by this utility model can not only use the functions of a hammer and a wrench, but also has the function of easily disassembling the hammer head and the internal hex socket, so as to conveniently replace the internal hex socket of the appropriate specification according to the on-site environment, and achieve the effect of using one tool with multiple functions. Attached Figure Description
[0015] Figure 1 This is the front view of the present invention;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.
[0018] In the diagram: 1-Hammer head, 2-Hammer handle, 3-Retractable pin, 31-Pin sleeve, 32-Pin, 4-Internal hex socket, 41-Connecting block, 5-Pre-positioning structure, 6-Locking screw. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0020] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the description of the structure of this utility model shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] The terms "first" and "second" in this technical solution are merely designations for corresponding structures that are identical or similar, or that perform similar functions. They do not represent an arrangement of the importance of these structures, nor do they imply any ranking, comparison of size, or other meaning.
[0022] Furthermore, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two structures. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the overall concept and the specific context of the solution.
[0023] Example
[0024] like Figure 1-3 As shown, this utility model embodiment provides a multi-functional tool, including a hammer head 1 and a hammer handle 2 detachably connected to the hammer head 1.
[0025] In this embodiment, the hammer head 1 is configured as a solid structure, preferably a claw hammer. The hammer handle 2 is configured as a hollow tubular structure, and the hammer head 1 has a central portion that connects to the head of the hammer handle 2 (i.e., the front end of the handle). Figure 1 The right end of the hammer has a matching threaded mounting hole so that the hammer handle 2 and the hammer head 1 can be detachably connected by threads.
[0026] In addition, a retractable pin 3 is provided inside the head end of the hammer handle 2. The retractable pin 3 includes a pin sleeve 31 located in the middle and pins 32 threadedly connected to both ends of the pin sleeve 31. The internal threads at both ends of the pin sleeve 31 have opposite directions and the same pitch, so that when the pin sleeve 31 is rotated, the two pins 32 will extend and retract synchronously relative to the pin sleeve 31.
[0027] Correspondingly, the front end side wall of the hammer handle 2 and the inner wall of the threaded mounting hole on the hammer head 1 are both provided with pin holes for the retractable pin 3 (the pin therein) to pass through. Typically, two coaxial pin holes are provided on the front end side wall of the hammer handle 2 and the inner wall of the threaded mounting hole on the hammer head 1, so that both ends of the retractable pin 3 (two pins 32) can be inserted into the hammer head 1, and in terms of position, the axis of the retractable pin 3 intersects perpendicularly with the axis of the hammer handle 2.
[0028] Meanwhile, the head cross-section of the pin 32 is non-circular, for example, square. The pin hole on the inner wall of the threaded mounting hole of the hammer head 1 is also square, as is the pin hole on the side wall of the head end of the hammer handle 2. This arrangement allows the two pins 32 to simultaneously extend into the hammer head 1 when the pin sleeve 31 is tightened, thereby fixing the relative position between the hammer head 1 and the hammer handle 2.
[0029] In addition, a step is provided on the outer wall of the head end of the hammer handle 2. This step is suitable so that when the hammer head 1 abuts against the step, the pin hole on the hammer head 1 roughly coincides with the pin hole on the hammer handle 2, thereby facilitating the insertion of the retractable pin 3 into the hammer head 1.
[0030] In this embodiment, an internal hexagon socket 4 is also installed at the tail end of the hammer handle 2, and a pre-positioning structure 5 is provided between the internal hexagon socket 4 and the hammer handle 2. At the same time, a locking screw 6 for fixing the internal hexagon socket 4 is screwed onto the outer wall of the tail end of the hammer handle 2, and correspondingly, a locking screw hole adapted to the locking screw 6 is opened on the internal hexagon socket 4.
[0031] Specifically, the end of the hexagon socket 4 facing the hammer handle 2 is provided with a connecting block 41 whose outer edge has a non-circular structure, such as a cubic or rectangular connecting block 41. Correspondingly, the tail end of the hammer handle 2 is provided with a connecting hole that matches the connecting block 41. The inner wall of the end of the hexagon socket 4 facing away from the hammer handle 2 is configured as a regular hexagon to facilitate the tightening of the hexagon socket bolt.
[0032] The prepositioning structure 5 is configured as a ball spring pin fixed inside the internal hexagonal sleeve 4 (connecting block 41), and a positioning groove adapted to the ball spring pin is provided on the inner wall of the connecting hole at the tail end of the hammer handle 2.
[0033] To improve positioning, both ends of the ball spring pin are equipped with balls, and correspondingly, two positioning grooves are formed on the inner wall of the connecting hole at the tail end of the hammer handle 2. The axis of the ball spring pin intersects perpendicularly with the axis of the hammer handle 2, and the positions of the two balls correspond to two opposite sides of the connecting block 41. The locking screw hole, which mates with the locking screw 6, is specifically formed on one of the other two opposite sides of the connecting block 41.
[0034] Of course, in other preferred embodiments, the pre-positioning structure 5 may also include a permanent magnet fixed to the side of the internal hexagonal sleeve 4 (the connecting block 41 therein), and correspondingly, another permanent magnet or a structural block made of ferromagnetic material that attracts the permanent magnet is installed on the inner wall of the connecting hole of the hammer handle 2. Of course, the entire hammer handle 2 may also be made of ferromagnetic material.
[0035] The above structural features enable the multi-functional tool provided by this utility model to not only function as a hammer and wrench, but also to facilitate the disassembly of the hammer head 2 and the internal hex socket 4, thereby allowing for convenient replacement of the internal hex socket 4 with a suitable specification according to the on-site environment.
[0036] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A multi-functional tool, characterized in that: The device includes a hammer head and a hammer handle detachably connected to the hammer head. An internal hexagonal socket is installed at the tail end of the hammer handle, and a locking screw for fixing the internal hexagonal socket is screwed onto the outer wall of the tail end of the hammer handle. The internal hexagonal socket has a locking screw hole adapted to the locking screw. A pre-positioning structure is also provided between the internal hexagonal socket and the hammer handle. The pre-positioning structure is a ball spring pin fixed on the internal hexagonal sleeve, and the hammer handle is provided with a positioning groove that matches the ball spring pin. The end of the internal hexagonal sleeve facing the hammer handle is provided with a connecting block whose outer edge is non-circular, and the tail end of the hammer handle is provided with a corresponding connecting hole that matches the connecting block.
2. The multi-functional tool according to claim 1, characterized in that: The hammer handle has a hollow structure.
3. The multi-functional tool according to claim 2, characterized in that: The hammer head has a threaded mounting hole that matches the head of the hammer handle. The head of the hammer handle has a retractable pin inside. The cross-section of the retractable pin is non-circular. The side wall of the head of the hammer handle and the inner wall of the threaded mounting hole of the hammer head are both provided with pin holes that match the head of the retractable pin.
4. The multi-functional tool according to claim 3, characterized in that: Both ends of the retractable pin are inserted into the hammer head, and the axis of the retractable pin intersects perpendicularly with the axis of the hammer handle.
5. The multi-functional tool according to claim 1, characterized in that: The hammerhead is a claw hammer.
Citation Information
Patent Citations
Hammer
CN201483463U