Head-replaceable multifunctional hand tool

Abstract

The utility model relates to a multifunctional hand tool with a replaceable head, which belongs to the technical field of disassembly and maintenance mechanical tools and comprises a handle, the handle is of a solid structure or a hollow structure, a replaceable workpiece head is arranged at one end of the handle, and a detachable or non-detachable knocking head of an integrated structure is arranged at one end of the handle. The workpiece head comprises a punch, a chisel head, a nail pulling head, a hammer, a tool bit, a screwdriver head, an internal hexagonal wrench head and a ratchet wheel connector or a wrench connector. The front end of the chiseling workpiece head is in a flat chiseling head shape or a cylindrical chiseling head shape or a conical chiseling head shape or a chiseling head series, a cylindrical chiseling series, a conical chiseling series, a central chiseling series, an oil groove chiseling series, a wood chiseling series and the like, and the front end of the chiseling workpiece head is in a regular or irregular chiseling head shape. The problem that the workpiece head cannot be replaced is solved. The combined structure that a plurality of workpiece heads can be replaced with only one handle is achieved, different use requirements are met, meanwhile, carrying is convenient, manpower and storage space are saved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dismantling and repairing mechanical tool technology field, concretely relates to a multi -functional hand tool of head replacement. BACKGROUND

[0002] Manual tools are used in many fields in life, and the multi -functional head replacement tool has the functions of shoveling, slotting, disassembling screw nut, punching, center positioning, marking, removing pin, pulling out nail, punching, brick wall hole and slotting, wood slotting and hole making, tenon making, cutting things and hammering in operation.

[0003] The existing manual tool adopts the structure of non-replaceable head integration, different purposes need to prepare multiple tools, which is not only inconvenient to carry, but also needs to replace new tools after the wear of workpiece head, so that the handle has no use value, causing the waste of cost loss. SUMMARY

[0004] The utility model mainly solves the deficiency in prior art, provides a multi -functional hand tool of head replacement, it has simple structure, convenient to dismount and the characteristics such as the combination function diversity. The problem that workpiece head is not replaceable is solved. The combination structure of only one handle can replace multiple workpiece heads meets different use demand, and it is convenient to carry, saves manpower, storage space and reduces cost.

[0005] The above technical problems of the utility model are mainly solved by the following technical scheme:

[0006] A multi -functional hand tool of head replacement, including handle, the handle is solid structure or hollow structure, the handle one end is equipped with replaceable workpiece head, the handle one end is equipped with knock head that can be disassembled or not disassembled and is integrated structure. The workpiece head includes punch, chisel head, nail pulling head, hammer, cutter head, screwdriver head, internal hex wrench head, ratchet joint or wrench joint. The handle is hollow structure and has damping function.

[0007] The front end of the workpiece head is flat chisel head or cylindrical chisel head or conical chisel head or chisel series, cylindrical punch series, conical punch series, center punch series, cold chisel series, wood chisel series. The front end of the workpiece head is regular or irregular chisel head.

[0008] As a preferred, the punch includes cylindrical punch, conical punch, center punch, scribe. Cylindrical punch, conical punch front end has angle. Center punch, scribe head is tapered sharp structure. The chisel head includes woodworking chisel, cold chisel, electrician chisel, bench chisel, mason chisel or multifunctional chisel. The knife head includes front blade structure or front blade and side blade combined structure; The nail head includes single open V-shaped structure or double open structure. The wrench socket is provided with a wrench groove, and the wrench groove is used for installing a dead wrench, a star wrench, a live wrench, a hook-shaped wrench, a sleeve wrench, an internal hexagonal wrench, a screw wrench, a torque wrench, an energy-saving wrench or a screwdriver bit.

[0009] The punch is mainly used for metal processing and is a common hand tool for bench workers. Its functions include dotting positioning, deburring, and processing low-precision small holes. Common types include cylindrical punch, conical punch, center punch, etc., and the materials are mostly tool steel or chromium-vanadium alloy steel. The chisel is used for carving, splitting, and trimming. The head shape includes flat chisel, sharp chisel, and flat chisel.

[0010] As a preferred, the chisel head front end is provided with a chisel knife, and the front end and both sides of the chisel knife are provided with knife edges.

[0011] As a preferred, the rear end of the chisel knife is provided with a chisel rod, the front part of the chisel rod is provided with a sawtooth edge, and the rear part of the chisel rod is provided with a bottle slot.

[0012] As a preferred, the single open V-shaped structure includes a nail head front end provided with a knife edge, and the front part of the nail head is provided with a nail slot in communication with the knife edge. The single open V-shaped structure is provided with a nail inner slot based on the single open V-shaped structure. The nail head is in a straight rod structure, an acute angle structure, or a right angle structure.

[0013] As a preferred, the handle and the striking head, and the handle and the workpiece head are both provided with shock-absorbing washers.

[0014] As a preferred, the handle and the striking head, and the handle and the workpiece head are connected by screw threads, pressure connection, or quick-change structure. The interface types include circular, square, hexagonal, octagonal, etc., and the interface modes are: spring quick-change type, push-pull quick-change type, rotary quick-change type, lock bolt type, quick-change plus lock screw combination type, threaded chuck type, threaded chuck plus steel ball combination type.

[0015] As a preferred, the quick-change structure is provided with a plurality of annular clamping grooves on the workpiece head and the striking head, a plurality of steel balls are arranged in the annular clamping grooves and are in hole type assembly with the handle, and the outer surface of the steel balls is provided with spring sheets for resetting.

[0016] As a preferred, the handle and the striking head, and the handle and the chisel punch workpiece head are both provided with shock-absorbing washers. The shock-absorbing washers are made of plastic, nylon, polyurethane, or metal, etc.

[0017] As preferred, the outer surface of the handle is provided with knurling, grooving, punching and profile structure for anti-skid.

[0018] As preferred, the handle is provided with a sleeve, and the sleeve is made of rubber, fabric, silica gel or TPR.

[0019] The utility model discloses can reach following effect:

[0020] The utility model discloses a multifunctional hand tool with replaceable head, compared with prior art, has simple structure, convenient to dismount and the characteristics such as the combination function diversity. Solve the problem that workpiece head is not replaceable. Operator holds handle, through the knocking surface of beating knock block, realize the operation to workpiece head. Realize only one handle can replace multiple workpiece head combination structure meets different use demand while convenient to carry, saves manpower, storage space and reduces cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model.

[0022] Figure 2 It is the sectional view of the screw structure of the utility model.

[0023] Figure 3 It is the sectional view of the quick change structure of the utility model.

[0024] Figure 4 It is the structure schematic diagram of the chisel of the utility model.

[0025] Figure 5 It is the structure schematic diagram of the chisel head of the utility model.

[0026] Figure 6 It is the structure schematic diagram of the conical punch of the utility model.

[0027] Figure 7 It is the structure schematic diagram of the scribe head of the utility model.

[0028] Figure 8 It is the straight rod structure schematic diagram of the nail pulling head of the utility model.

[0029] Figure 9 It is the acute angle structure schematic diagram of the nail pulling head of the utility model.

[0030] Figure 10 It is the right angle structure schematic diagram of the nail pulling head of the utility model.

[0031] Figure 11 It is the structure schematic diagram of the ratchet joint of the utility model.

[0032] Figure 12 This is a schematic diagram of the wrench connector in this utility model.

[0033] Figure 13 This is a schematic diagram of the hammer in this utility model.

[0034] In the diagram: 1. Handle; 2. Striking head; 3. Sheath; 4. Workpiece head; 5. Shock-absorbing washer; 6. Steel ball; 7. Spring plate; 8. Annular groove; 9. Chisel head; 10. Bottle-lifting groove; 11. Chisel blade; 12. Cutting edge; 13. Serrated edge; 14. Chisel body rod; 15. Conical punch; 16. Marking tool; 17. Nail-lifting head; 18. Nail-lifting groove; 19. Nail-lifting inner groove; 20. Ratchet joint; 21. Wrench joint; 22. Wrench groove; 23. Hammer. Detailed Implementation

[0035] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0036] Example: Figures 1-13 As shown, a multi-functional hand tool with interchangeable heads includes a handle 1. The outer surface of the handle 1 is knurled, grooved, perforated, and has a profile structure for anti-slip purposes. A sleeve 3 is provided on the outside of the handle 1, made of rubber, fabric, silicone, or TPR. The handle 1 is a solid or hollow structure. One end of the handle 1 has an interchangeable workpiece head 4, and the other end has a detachable or non-detachable integrated striking head 2. Shock-absorbing washers 5 are provided between the handle 1 and the striking head 2, and between the handle 1 and the workpiece head 4. The handle 1 and the striking head 2, and the handle 1 and the workpiece head 4 are interchangeably connected by a threaded structure, a crimped structure, or a quick-change structure. The quick-change structure uses several annular grooves 8 on the workpiece head 4 and the striking head 2. Several steel balls 6, arranged in a ring and connected to the handle 1 through holes, are located between the annular grooves 8 and the handle 1. A spring plate 7 for resetting is provided on the outside of the steel balls 6.

[0037] The workpiece head 4 includes a punch, a chisel head 9, a nail extractor head 17, a hammer head 23, a knife head, a screwdriver head, an internal hex wrench head, a ratchet head 20 or a wrench head 21. The punch includes a cylindrical punch, a conical punch 15, a center punch, a scribe 16; the chisel head 9 includes a wood chisel, a stone chisel, an electrician's chisel, a bench chisel, a mason's chisel or a multi-functional chisel. The chisel head 9 is provided with a chisel blade 11 at the front end, and the front end and both sides of the chisel blade 11 are provided with a blade edge 12. The rear end of the chisel blade 11 is provided with a chisel body rod 14, the front part of the chisel body rod 14 is provided with a serrated edge 13, and the rear part of the chisel body rod 14 is provided with a bottle opening groove 10. The knife head includes a front blade structure or a combination of a front blade and a side blade structure. The nail extractor head 17 includes a single-opening V-shaped structure or a double-opening structure, the nail extractor head 17 is provided with a blade edge 12 at the front end, and the front part of the nail extractor head 17 is provided with a nail extractor groove 18 in communication with the blade edge 12. The single-opening V-shaped structure is provided with a nail extractor inner groove 19 on the basis of the single-opening V-shaped structure. The nail extractor head 17 is in a straight rod structure, an acute angle structure or a right angle structure. The wrench head 21 is provided with a wrench groove 22 for installing a dead wrench, a star wrench, a live wrench, a hook-shaped wrench, a socket wrench, an internal hex wrench, a torque wrench, an energy-saving wrench or a screwdriver head.

[0038] In summary, the interchangeable head multifunctional hand tool has the characteristics of simple structure, convenient disassembly and assembly and diversified combination functions. The problem of non-replaceable workpiece head is solved. The combination structure of only one handle with multiple interchangeable workpiece heads meets different use requirements, is convenient to carry, saves manpower, storage space and reduces cost.

[0039] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In summary, the above-mentioned is only a specific embodiment of the utility model, but the structural characteristics of the utility model are not limited to this, and any changes or modifications made by those skilled in the art within the field of the utility model are covered by the patent scope of the utility model.

Claims

1. A changeable head multi-purpose hand tool characterized by: Handle (1) is a solid structure or hollow structure, one end of the handle (1) is provided with a replaceable workpiece head (4), one end of the handle (1) is provided with a knock head (2) which is detachable or integral structure; The punch head includes cylindrical punch, conical punch (15), center punch, scribe (16); The chisel head (9) includes wood chisel, stone chisel, electrician chisel, bench chisel, mud chisel or multifunctional chisel; The knife head includes front blade structure or front blade and side blade combined structure; The nail head (17) includes single open V-shaped structure or double open structure; The wrench socket (21) is provided with a wrench groove (22), and the wrench groove (22) is used for installing dead wrench, key wrench, live wrench, hook wrench, sleeve wrench, internal hexagonal wrench, torque wrench, energy-saving wrench or screwdriver.

2. The multi-purpose hand tool with replaceable heads according to claim 1, wherein: The front end of the chisel head (9) is provided with a chisel knife (11), and the front end and both sides of the chisel knife (11) are provided with knife edges (12).

3. The multi-purpose hand tool with replaceable heads according to claim 2, wherein: The rear end of the chisel knife (11) is provided with a chisel body rod (14), the front part of the chisel body rod (14) is provided with a sawtooth edge (13), and the rear part of the chisel body rod (14) is provided with a bottle slot (10).

4. The multi-purpose hand tool with replaceable heads according to claim 3, wherein: The single open V-shaped structure includes a nail head (17) provided with a knife edge (12) at the front end, and the nail head (17) is provided with a nail slot (18) in communication with the knife edge (12); The single open V-shaped structure is provided with a nail inner groove (19) based on the single open V-shaped structure; The nail head (17) is in straight rod structure, acute angle structure or right angle structure.

5. The multi-purpose hand tool with replaceable heads according to claim 2, wherein: The handle (1) and the knock head (2), the handle (1) and the workpiece head (4) are provided with shock absorbing washers (5).

6. The multi-purpose hand tool with replaceable heads according to claim 1, wherein: The handle (1) and the knock head (2), the handle (1) and the workpiece head (4) are connected by thread structure, pressure connection structure or quick change structure.

7. The multi-purpose hand tool with interchangeable heads of claim 1, wherein: The quick change structure adopts a plurality of annular clamping grooves (8) provided on the workpiece head (4) and the knock head (2), a plurality of steel balls (6) are arranged in the annular clamping grooves (8) and communicated with the handle (1), the outer surface of the steel ball (6) is provided with a spring sheet (7) for resetting.

8. The multi-purpose hand tool with interchangeable heads of claim 7, wherein: The outer surface of the handle (1) is provided with knurling, slotting, punching and profile structure for anti-skid.

9. The multi-purpose hand tool with replaceable heads according to claim 1, wherein: The outer surface of the handle (1) is provided with a sleeve (3), and the sleeve (3) is made of rubber, fabric, silica gel or TPR.

10. The multi-purpose hand tool with interchangeable heads of claim 9, wherein: ​

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