Hard alloy dagger drill with threaded handle

Abstract

The utility model relates to the technical field of dagger drill equipment, in particular to a hard alloy threaded handle dagger drill which comprises a dagger drill shell, an anti-collision shell is installed on the upper surface of the dagger drill shell, a telescopic rod is installed at the top end in the anti-collision shell, and a protection ring is installed at the bottom of the telescopic rod. A first spring is installed on the outer surface of the telescopic rod, the top of the first spring is fixed into the anti-collision shell, and the bottom of the first spring is fixed to the upper surface of the protection ring. The hard alloy dagger drill with the threaded handle has the advantages that the drill bit can be covered with the anti-collision shell, the protection ring is fixedly supported through the telescopic rod and the supporting rod, the tip end of the drill bit is covered with the bottom of the protection ring, and meanwhile buffering force is provided for the protection ring through the first spring; the situation that when the hard alloy threaded handle dagger drill is placed randomly, the drill bit is collided and broken, the top of the drill bit is rounded and blunt, and the use efficiency of the hard alloy threaded handle dagger drill is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dagger drill equipment, in particular to a dagger drill with a hard alloy threaded handle. Background Art

[0002] The carbide threaded shank dagger drill is a drilling tool with excellent cutting performance and stability. It has a wide range of applications in the field of metal processing. It uses carbide as the main material, which has excellent hardness and wear resistance. At the same time, its shank is designed as a threaded shank, which is convenient for connection with a drilling machine or other drilling equipment, and the drill tip is dagger-shaped, which can process holes with precise dimensions.

[0003] In the existing carbide threaded handle dagger drill, the dagger drill will be placed in a storage box after use. There are multiple tools in the storage box, which will collide during the transportation process. Long-term squeezing and collision can easily cause the drill bit to be worn or broken, making the drill bit not sharp enough, which will affect the use efficiency of the carbide threaded handle dagger drill, reduce the work efficiency of the drill bit, and frequently replace the drill bit, causing huge economic losses and waste of resources.

[0004] Therefore, the utility model proposes a cemented carbide threaded handle dagger drill to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a dagger drill with a cemented carbide threaded handle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dagger drill with a carbide threaded handle, the dagger drill with a carbide threaded handle comprising: a dagger drill housing, an anti-collision shell is installed on the upper surface of the dagger drill housing, a telescopic rod is installed on the top of the inner top of the anti-collision shell, a protective ring is installed on the bottom of the telescopic rod, a spring 1 is installed on the outer surface of the telescopic rod, the top of the spring 1 is fixed inside the anti-collision shell, and the bottom of the spring 1 is fixed on the upper surface of the protective ring;

[0007] A support rod is installed on the outer side of the protective ring, and the outer end of the support rod is fixed on the inner wall of the anti-collision shell.

[0008] Preferably, a movable groove is provided inside the bottom end of the anti-collision shell, a pull rod is installed inside the movable groove, a fixed block is installed at the bottom of the pull rod, and an elliptical groove is provided on the upper surface of the fixed block.

[0009] Preferably, a movable slot is provided inside the pull rod, and one side of the movable slot passes through the outer surface of the pull rod.

[0010] Preferably, a push rod is installed inside the movable slot, an elliptical push block is installed at the bottom of the push rod, and the elliptical push block movably surrounds the outer surface of the pull rod.

[0011] Preferably, the elliptical push block is elliptical, and the size and shape of the bottom of the elliptical push block are consistent with the size and shape of the elliptical groove.

[0012] Preferably, a placement groove is provided on the upper surface of the dagger drill housing, and the bottom of the anti-collision shell is placed inside the placement groove.

[0013] Preferably, a groove is provided on the inner wall of the placement slot, a second spring is installed inside the groove, and a clamping block is installed at one end of the second spring.

[0014] Preferably, a threaded handle is installed at the bottom center of the dagger drill housing, and a drill bit is installed at the top center of the dagger drill housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The hard alloy threaded handle dagger drill proposed by the utility model is used in combination with an anti-collision shell, a telescopic rod, a spring, a support rod and a protective ring. When the hard alloy threaded handle dagger drill is not needed, the anti-collision shell is used to cover the drill bit, and the protective ring is fixed and supported by the telescopic rod and the support rod. The bottom of the protective ring covers the tip of the drill bit, and the spring provides a buffer force to the protective ring at the same time, so that when the hard alloy threaded handle dagger drill is placed casually, the drill bit is prevented from being hit and broken, and the top of the drill bit is rounded and blunted, which affects the use efficiency of the hard alloy threaded handle dagger drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the dagger drill of the utility model;

[0020] Figure 4 For the utility model Figure 2 Schematic diagram of the structure of A;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the pull rod and the push rod combined in the utility model.

[0022] In the figure: 1, dagger drill housing; 2, threaded handle; 3, drill bit; 4, placement slot; 5, anti-collision shell; 6, telescopic rod; 7, spring 1; 8, protective ring; 9, support rod; 10, movable slot; 11, pull rod; 12, push rod; 13, movable card slot; 14, elliptical push block; 15, fixed block; 16, elliptical slot; 17, groove;

[0023] 18. Spring 2; 19. Block. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a dagger drill with a carbide threaded handle, the dagger drill with a carbide threaded handle comprising: a dagger drill housing 1, an anti-collision shell 5 is installed on the upper surface of the dagger drill housing 1, a telescopic rod 6 is installed on the top of the inner top of the anti-collision shell 5, a protective ring 8 is installed on the bottom of the telescopic rod 6, a spring 7 is installed on the outer surface of the telescopic rod 6, the top of the spring 7 is fixed inside the anti-collision shell 5, the bottom of the spring 7 is fixed on the upper surface of the protective ring 8, a support rod 9 is installed on the outer side of the protective ring 8, and the outer end of the support rod 9 is fixed on the inner wall of the anti-collision shell 5;

[0027] During use, when the carbide threaded handle dagger drill is not needed, the anti-collision shell 5 is installed on the dagger drill shell 1 to cover the drill bit 3, and the protective ring 8 is fixed and supported by the telescopic rod 6 and the support rod 9. The bottom of the protective ring 8 covers the tip of the top of the drill bit 3. At the same time, the spring 1 7 provides a buffer force to the protective ring 8 to prevent the drill bit 3 from being hit and broken when the carbide threaded handle dagger drill is placed casually, causing the top of the drill bit 3 to be rounded and blunted, affecting the use efficiency of the carbide threaded handle dagger drill.

[0028] Embodiment 2

[0029] On the basis of the first embodiment, in order to facilitate the fixing of the anti-collision shell 5, a movable groove 10 is provided inside the bottom end of the anti-collision shell 5, a pull rod 11 is installed inside the movable groove 10, a fixing block 15 is installed at the bottom of the pull rod 11, an elliptical groove 16 is provided on the upper surface of the fixing block 15, a placement groove 4 is provided on the upper surface of the dagger drill housing 1, the bottom of the anti-collision shell 5 is placed inside the placement groove 4, a groove 17 is provided on the inner wall of the placement groove 4, a spring 2 18 is installed inside the groove 17, and a clamping block 19 is installed at one end of the spring 2 18;

[0030] When in use, after the pull rod 11 drives the fixing block 15 to the bottom of the movable groove 10, the clamping block 19 moves to the top of the fixing block 15 under the action of the spring 18, and fixes the anti-collision shell 5 and the dagger drill shell 1.

[0031] Embodiment 3

[0032] On the basis of the second embodiment, in order to facilitate the removal of the anti-collision shell 5, a threaded handle 2 is installed at the bottom center of the dagger drill housing 1, a drill bit 3 is installed at the top center of the dagger drill housing 1, a movable slot 13 is opened inside the pull rod 11, one side of the movable slot 13 passes through the outer surface of the pull rod 11, a push rod 12 is installed inside the movable slot 13, an elliptical push block 14 is installed at the bottom of the push rod 12, the elliptical push block 14 is movably surrounded by the outer surface of the pull rod 11, the elliptical push block 14 is elliptical, and the size and shape of the bottom of the elliptical push block 14 are consistent with the size and shape of the elliptical slot 16;

[0033] When in use, the push rod 12 is pressed down to move the elliptical push block 14 downward, and the clamping block 19 is moved outward to the side of the elliptical push block 14 through the elliptical arc surface, and the pull rod 11 is pulled to facilitate the removal of the anti-collision shell 5.

[0034] When the drill bit 3 is not in use, the anti-collision shell 5 is installed on the drill housing 1 to cover the drill bit 3. After the pull rod 11 drives the fixed block 15 to the bottom of the movable groove 10, the clamping block 19 moves to the top of the fixed block 15 under the action of the spring 18, and the anti-collision shell 5 is fixed to the dagger drill housing 1. The protective ring 8 is fixed and supported by the telescopic rod 6 and the support rod 9. The bottom of the protective ring 8 covers the tip of the top of the drill bit 3. At the same time, the spring 17 provides a buffer force to the protective ring 8 to prevent the drill bit 3 from being broken by collision when the drill bit 3 is placed casually, causing the top of the drill bit 3 to be rounded and blunt, affecting the use efficiency of the drill bit 3 with a threaded handle. When the drill bit 3 with a threaded handle needs to be used, the push rod 12 is pressed down to move the elliptical push block 14 downward, and the clamping block 19 is moved outward to the side of the elliptical push block 14 through the elliptical arc surface, and the pull rod 11 is pulled to facilitate the removal of the anti-collision shell 5.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Carbide threaded handle dagger drill, characterized by: The dagger drill with a hard alloy threaded handle comprises: a dagger drill housing (1), an anti-collision shell (5) is installed on the upper surface of the dagger drill housing (1), a telescopic rod (6) is installed on the top of the inner top of the anti-collision shell (5), a protective ring (8) is installed on the bottom of the telescopic rod (6), a spring (7) is installed on the outer surface of the telescopic rod (6), the top of the spring (7) is fixed inside the anti-collision shell (5), and the bottom of the spring (7) is fixed on the upper surface of the protective ring (8); A support rod (9) is installed on the outer side of the protection ring (8), and the outer end of the support rod (9) is fixed on the inner wall of the anti-collision shell (5).

2. The carbide threaded handle dagger drill according to claim 1, characterized in that: A movable groove (10) is provided inside the bottom end of the anti-collision shell (5), a pull rod (11) is installed inside the movable groove (10), a fixed block (15) is installed at the bottom of the pull rod (11), and an elliptical groove (16) is provided on the upper surface of the fixed block (15).

3. The carbide threaded handle dagger drill according to claim 2, characterized in that: An active slot (13) is provided inside the pull rod (11), and one side of the active slot (13) passes through the outer surface of the pull rod (11).

4. The carbide threaded handle dagger drill according to claim 3, characterized in that: A push rod (12) is installed inside the movable slot (13), an elliptical push block (14) is installed at the bottom of the push rod (12), and the elliptical push block (14) movably surrounds the outer surface of the pull rod (11).

5. The carbide threaded handle dagger drill according to claim 4, characterized in that: The elliptical push block (14) is elliptical in shape, and the size and shape of the bottom of the elliptical push block (14) are consistent with the size and shape of the elliptical groove (16).

6. The carbide threaded handle dagger drill according to claim 1, characterized in that: The upper surface of the dagger drill housing (1) is provided with a placement groove (4), and the bottom of the anti-collision shell (5) is placed inside the placement groove (4).

7. The carbide threaded handle dagger drill according to claim 6, characterized in that: The inner wall of the placement groove (4) is provided with a groove (17), a second spring (18) is installed inside the groove (17), and a clamping block (19) is installed at one end of the second spring (18).

8. The carbide threaded handle dagger drill according to claim 1, characterized in that: A threaded handle (2) is installed at the bottom center of the dagger drill housing (1), and a drill bit (3) is installed at the top center of the dagger drill housing (1).

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