chisel

Abstract

The application discloses a chisel and relates to the technical field of building construction, which comprises a hammering part, a connecting part fixedly installed at one end of the hammering part, a head provided at one end of the connecting part, a blade and an inclined surface provided on the surface of the head, a V-shaped notch of the blade, V-shaped and arc-shaped settings of the two ends of the inclined surface, and an integrated head, and an assembling mechanism for assembling the head is arranged in the connecting part. The head comprises the blade and the inclined surface provided on the surface of the head, the notch of the blade is V-shaped, the two ends of the inclined surface are V-shaped and arc-shaped, and the head is integrally arranged, so that the head of the device can effectively transmit the force when the head is used for carving, the condition that the head is easily broken can be reduced, and the service life is improved, thereby reducing the use cost.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to chisels. Background Technology

[0002] A chisel is a steel tool, usually with a cutting edge at the end of the handle or shank. It is primarily used for carving stone, wood, metal, or other materials. During carving, a chisel is typically held at a right angle to the surface of the object being carved and is used by striking it with a mallet.

[0003] Traditional chisel heads are relatively thin and flat, making them prone to breakage when subjected to hammering force during carving. This results in a shorter lifespan and increased operating costs. Utility Model Content

[0004] The purpose of this invention is to solve or at least alleviate the problem in the prior art where the head of a traditional chisel is easily broken by force, resulting in a short service life and increased usage costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a chisel, including a hammering part, a connecting part fixedly installed at one end of the hammering part, a head at one end of the connecting part, the head including a blade and an inclined surface formed on the surface of the head, the cut of the blade being V-shaped, the two ends of the inclined surface being V-shaped and arc-shaped respectively, the head being integrally formed, and an assembly mechanism for assembling with the head being provided in the connecting part.

[0006] By adopting the above technical solution, the head includes a blade and a bevel on the surface of the head. The blade has a V-shaped cut, and the two ends of the bevel are V-shaped and arc-shaped, respectively. The head is a one-piece design. Therefore, when the head of this device is used for carving, the thicker chisel head can effectively transmit force and reduce the likelihood of head breakage, thereby increasing its service life and reducing the cost of use.

[0007] Optionally, the assembly mechanism includes a mounting groove at one end of the connecting part, two first telescopic rods are symmetrically fixedly installed in the mounting groove, each of the two first telescopic rods is fitted with a first telescopic spring, each of the telescopic ends of the two first telescopic rods is fixedly installed with a first sliding plate, each of the two first sliding plates is fixedly installed with a first wedge block at one end close to each other, and a second wedge block is fixedly installed at one end of the head.

[0008] By using the above technical solution, by inserting the second wedge block at one end of the head into the mounting groove of the connecting part, the two first wedge blocks and the two first sliding plates will be driven to move away from each other. The two first sliding plates moving away from each other will compress the corresponding first telescopic rod and the first telescopic spring, and the second wedge block can be positioned and installed at this time.

[0009] Optionally, the second wedge block is located between the two first wedge blocks and is configured to fit them.

[0010] By adopting the above technical solution, the second wedge block is positioned between the two first wedge blocks and is adapted to them, thereby facilitating positioning and installation.

[0011] Optionally, the assembly mechanism further includes two second telescopic rods symmetrically fixedly installed in the mounting groove. Each of the two second telescopic rods is fitted with a second telescopic spring. Each of the telescopic ends of the two second telescopic rods is fixedly installed with a second sliding plate. Each of the two second sliding plates is fixedly installed with a first semicircular block on one side. One end of the head is fixedly installed with a second semicircular block.

[0012] By using the above technical solution, by inserting the second semicircular block at one end of the head into the connecting part, the two first semicircular blocks and the two second sliding plates will be driven to move away from each other. The two second sliding plates moving away from each other will compress the corresponding second telescopic rod and the second telescopic spring. At this time, the second semicircular block can be positioned and installed, and the assembly of the head can be completed, thus facilitating disassembly and assembly in the later stage.

[0013] Optionally, the second semicircular block is located between the two first semicircular blocks and is configured to fit them.

[0014] By adopting the above technical solution, the second semicircular block is positioned between the two first semicircular blocks and is adapted to them, which facilitates positioning and installation.

[0015] Optionally, two through holes are symmetrically opened on one side of the outer surface of the connecting part, and a positioning bolt is provided in each of the two through holes. Threaded holes are opened on the top of each of the two first sliding plates, and the two second sliding plates are configured the same as the two first sliding plates.

[0016] By adopting the above technical solution, the positions of the two first sliding plates can be limited by installing two positioning bolts on the first sliding plate, thereby improving the stability after assembly. Compared with simply using positioning bolts for positioning and installation, the strength during positioning can be improved, which can further improve the stability of assembly. Therefore, when the head wears out after long-term use, the head can be disassembled and replaced, thereby reducing the cost of use.

[0017] Optionally, a first external thread is provided on one side of the outer surface of the head, a threaded sleeve is screwed onto the first external thread, a first internal thread is provided inside the threaded sleeve, and a second external thread is provided on one side of the outer surface of the connecting part, the second external thread being adapted to the first internal thread.

[0018] By adopting the above technical solution, the first internal thread inside the threaded sleeve is connected to the second external thread on the connecting part and the first external thread on the head, thereby completing the assembly of the connecting part and the head.

[0019] Optionally, a third external thread is provided on one outer surface of the hammering part, a protective plate is fitted on the hammering part, a second internal thread is provided inside the protective plate, the second internal thread is adapted to the third external thread, and two gripping blocks are symmetrically fixedly installed on the protective plate.

[0020] By adopting the above technical solution, the protective plate can be rotated and installed on the hammering part, thereby completing the installation of the protective plate and the grip block, which can protect the worker's hands during hammering, thus improving the safety during use.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] 1. In this invention, the head and other components work together to form a blade and an inclined surface on the head surface. The blade has a V-shaped cut, and the two ends of the inclined surface are V-shaped and arc-shaped, respectively. The head is an integral part of the device. As a result, when the head is used for carving, the thicker chisel head can effectively transmit force and reduce the likelihood of breakage, thereby increasing its service life and reducing the cost of use.

[0023] 2. In this application, the new invention utilizes the cooperation of a first semicircular block, etc. By inserting a second semicircular block at one end of the head into the connecting part, the two first semicircular blocks and the two second sliding plates are driven to move away from each other. The two second sliding plates moving away from each other compress the corresponding second telescopic rod and the second telescopic spring. At this time, the second semicircular block can be positioned and installed, and the assembly of the head can be completed. Therefore, it is convenient for disassembly and assembly in the later stage. When the head wears out after long-term use, the head can be disassembled and replaced separately, thereby reducing the cost of use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the assembly structure of this application;

[0026] Figure 3This is a schematic diagram of the assembly structure of this application;

[0027] Figure 4 This is a schematic diagram of the assembly structure of this application;

[0028] Figure 5 This is a schematic diagram of the protective structure of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Hammering part; 2. Connecting part; 3. Head; 4. Blade; 5. Bevel; 6. Positioning bolt; 7. Mounting groove; 8. First telescopic rod; 9. First telescopic spring; 10. First sliding plate; 11. First wedge block; 12. Second wedge block; 13. Through hole; 14. Threaded hole; 15. Second telescopic rod; 16. Second telescopic spring; 17. Second sliding plate; 18. First semicircular block; 19. Second semicircular block; 20. First external thread; 21. Threaded sleeve; 22. First internal thread; 23. Second external thread; 24. Third external thread; 25. Protective plate; 26. Second internal thread; 27. Grip block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0031] Example 1

[0032] Please see Figure 1-3 A chisel includes a hammering part 1, a connecting part 2 fixedly installed at one end of the hammering part 1, a head 3 provided at one end of the connecting part 2, and the head 3 includes a blade 4 and a bevel 5 formed on the surface of the head 3, wherein the cut of the blade 4 is V-shaped, and the two ends of the bevel 5 are V-shaped and arc-shaped respectively. The head 3 is integrally set, and an assembly mechanism, a positioning mechanism and a protective mechanism are set in the connecting part 2 for assembly with the head 3.

[0033] In use, the head 3 includes a blade 4 and a bevel 5 on the surface of the head 3. The blade 4 has a V-shaped cut, and the two ends of the bevel 5 are V-shaped and arc-shaped, respectively. The head 3 is a one-piece design, which allows the head 3 of this device to effectively transmit force during engraving due to its thickness, and reduces the likelihood of breakage, thereby increasing its service life and reducing the cost of use.

[0034] Reference Figure 1-3The assembly mechanism includes a mounting groove 7 at one end of the connecting part 2, two first telescopic rods 8 symmetrically fixedly installed in the mounting groove 7, two first telescopic springs 9 sleeved on the two first telescopic rods 8, two first sliding plates 10 fixedly installed at the telescopic ends of the two first telescopic rods 8, two first wedge blocks 11 fixedly installed at one end of the two first sliding plates 10 close to each other, and a second wedge block 12 fixedly installed at one end of the head 3. The second wedge block 12 is located between the two first wedge blocks 11 and is adapted to them.

[0035] Reference Figure 1-2 The positioning mechanism includes two through holes 13 symmetrically opened on the outer surface of one side of the connecting part 2, two positioning bolts 6 set in the two through holes 13, and threaded holes 14 opened on the top of the two first sliding plates 10.

[0036] In use, by inserting the second wedge block 12 at one end of the head 3 into the mounting groove 7 of the connecting part 2, the two first wedge blocks 11 and the two first sliding plates 10 will be driven to move away from each other. The two first sliding plates 10 moving away from each other will compress the corresponding first telescopic rod 8 and the first telescopic spring 9. At this time, the second wedge block 12 can be positioned and installed, and the two positioning bolts 6 can be installed on the first sliding plates 10, thereby limiting the position of the two first sliding plates 10, which can improve the stability after assembly. Compared with simply using the positioning bolts 6 for positioning and installation, the strength during positioning can be improved, which can further improve the stability of assembly. Therefore, when the head 3 wears out after long-term use, the head 3 can be disassembled and replaced, thereby reducing the cost of use.

[0037] Reference Figure 4 The protective mechanism includes a third external thread 24 on one side of the outer surface of the hammering part 1, a protective plate 25 sleeved on the hammering part 1, a second internal thread 26 in the protective plate 25, and two gripping blocks 27 that are adapted to the third external thread 24 and symmetrically fixed on the protective plate 25.

[0038] In use, the protective plate 25 is rotated and mounted on the hammering part 1, thereby completing the installation of the protective plate 25 and the grip block 27, which can protect the worker's hands during hammering, thus improving the safety during use.

[0039] Example 2

[0040] Reference Figure 1-3The assembly mechanism includes two second telescopic rods 15 symmetrically fixedly installed in the mounting groove 7, two second telescopic springs 16 sleeved on the two second telescopic rods 15, two second sliding plates 17 fixedly installed at the telescopic ends of the two second telescopic rods 15, two first semicircular blocks 18 fixedly installed on one side of the two second sliding plates 17, and a second semicircular block 19 fixedly installed at one end of the head 3. The second semicircular block 19 is located between the two first semicircular blocks 18 and is adapted to them. The positioning mechanism in Embodiment 2 of this device is the same as that in Embodiment 1.

[0041] In use, by inserting the second semicircular block 19 at one end of the head 3 into the connecting part 2, the two first semicircular blocks 18 and the two second sliding plates 17 will be driven to move away from each other. The two second sliding plates 17 moving away from each other will compress the corresponding second telescopic rod 15 and the second telescopic spring 16. At this time, the second semicircular block 19 can be positioned and installed, and the assembly of the head 3 can also be completed, thus facilitating disassembly and assembly later.

[0042] Example 3

[0043] Reference Figure 4 The assembly mechanism includes a first external thread 20 on one side of the outer surface of the head 3, a threaded sleeve 21 screwed onto the first external thread 20, a first internal thread 22 inside the threaded sleeve 21, and a second external thread 23 on one side of the outer surface of the connecting part 2, wherein the second external thread 23 is adapted to the first internal thread 22.

[0044] In use, the first internal thread 22 inside the threaded sleeve 21 is engaged with the second external thread 23 on the connecting part 2 and the first external thread 20 on the head 3 to complete the assembly of the connecting part 2 and the head 3.

[0045] This device employs three assembly methods, thereby increasing its flexibility in use, and the specific installation method can be selected according to the usage conditions.

[0046] In use, the protective plate 25 is rotated and mounted on the hammering part 1, thereby completing the installation of the protective plate 25 and the grip block 27, which can protect the worker's hands during hammering, thus improving the safety during use.

[0047] The implementation principle of this application is as follows: When in use, the head 3 includes a blade 4 and an inclined surface 5 on the surface of the head 3. The cut of the blade 4 is V-shaped, and the two ends of the inclined surface 5 are V-shaped and arc-shaped, respectively. The head 3 is a one-piece structure, so that when the head 3 of this device is used for carving, the force can be effectively transmitted due to the thickness of the chisel head 3, and the situation of the head 3 being prone to breakage can be reduced, thereby improving the service life and reducing the cost of use.

[0048] By inserting the second wedge block 12 at one end of the head 3 into the mounting groove 7 of the connecting part 2, the two first wedge blocks 11 and the two first sliding plates 10 will be driven to move away from each other. The two first sliding plates 10 moving away from each other will compress the corresponding first telescopic rod 8 and the first telescopic spring 9. At this time, the second wedge block 12 can be positioned and installed, and the two positioning bolts 6 can be installed on the first sliding plates 10, thereby limiting the position of the two first sliding plates 10, which can improve the stability after assembly. Compared with simply using the positioning bolts 6 for positioning and installation, the strength during positioning can be improved, which can further improve the stability of assembly. Therefore, when the head 3 wears out after long-term use, the head 3 can be disassembled and replaced, thereby reducing the cost of use.

[0049] By inserting the second semicircular block 19 at one end of the head 3 into the connecting part 2, the two first semicircular blocks 18 and the two second sliding plates 17 will be driven to move away from each other. The two second sliding plates 17 moving away from each other will compress the corresponding second telescopic rod 15 and the second telescopic spring 16. At this time, the second semicircular block 19 can be positioned and installed, and the assembly of the head 3 can be completed, which makes it easy to disassemble and assemble later.

[0050] The first internal thread 22 inside the threaded sleeve 21 is engaged with the second external thread 23 on the connecting part 2 and the first external thread 20 on the head 3, thereby completing the assembly of the connecting part 2 and the head 3.

[0051] This device employs three assembly methods, thereby increasing its flexibility in use, and the specific installation method can be selected according to the usage conditions.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chisel, including a striking part (1), characterized in that: One end of the hammering part (1) is fixedly installed with a connecting part (2), and one end of the connecting part (2) is provided with a head (3). The head (3) includes a blade (4) and a bevel (5) formed on the surface of the head (3). The cut of the blade (4) is V-shaped, and the two ends of the bevel (5) are V-shaped and arc-shaped, respectively. The head (3) is integrally formed, and the connecting part (2) is provided with an assembly mechanism for assembling with the head (3).

2. The chisel according to claim 1, characterized in that: The assembly mechanism includes a mounting groove (7) opened at one end of the connecting part (2). Two first telescopic rods (8) are symmetrically fixedly installed in the mounting groove (7). A first telescopic spring (9) is sleeved on each of the two first telescopic rods (8). A first sliding plate (10) is fixedly installed at the telescopic end of each of the two first telescopic rods (8). A first wedge block (11) is fixedly installed at the end of each of the two first sliding plates (10) that are close to each other. A second wedge block (12) is fixedly installed at one end of the head (3).

3. The chisel according to claim 2, characterized in that: The second wedge block (12) is located between the two first wedge blocks (11) and is adapted to them.

4. The chisel according to claim 2, characterized in that: The assembly mechanism also includes two second telescopic rods (15) symmetrically fixedly installed in the mounting groove (7). Each of the two second telescopic rods (15) is fitted with a second telescopic spring (16). Each of the telescopic ends of the two second telescopic rods (15) is fixedly installed with a second sliding plate (17). Each of the two second sliding plates (17) is fixedly installed with a first semicircular block (18) on one side. One end of the head (3) is fixedly installed with a second semicircular block (19).

5. The chisel according to claim 4, characterized in that: The second semicircular block (19) is located between the two first semicircular blocks (18) and is adapted to them.

6. The chisel according to claim 4, characterized in that: Two through holes (13) are symmetrically opened on one side of the outer surface of the connecting part (2). A positioning bolt (6) is provided in each of the two through holes (13). A threaded hole (14) is opened on the top of each of the two first sliding plates (10). The two second sliding plates (17) are configured in the same way as the two first sliding plates (10).

7. The chisel according to claim 1, characterized in that: The head (3) has a first external thread (20) on one side of its outer surface, and a threaded sleeve (21) is screwed onto the first external thread (20). The threaded sleeve (21) has a first internal thread (22) inside it. The connecting part (2) has a second external thread (23) on one side of its outer surface, and the second external thread (23) is adapted to the first internal thread (22).

8. The chisel according to claim 7, characterized in that: The outer surface of one side of the hammering part (1) is provided with a third external thread (24), and a protective plate (25) is fitted on the hammering part (1). The protective plate (25) is provided with a second internal thread (26), which is adapted to the third external thread (24). Two gripping blocks (27) are symmetrically fixed on the protective plate (25).

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