Electric drill connecting coupler

Abstract

The utility model discloses an electric drill connecting coupler, which comprises a crossover coupling, a tail rod, a middle connecting rod, a tail connecting rod, a hexagonal connecting head and an inner stop mechanism, the tail rod is fixed at the tail end of the crossover coupling, the middle connecting rod is arranged between the tail rod and the tail connecting rod, and an embedded connecting rod A and an embedded connecting rod B are respectively fixed on the lower rod end faces of the tail rod and the middle connecting rod. By splitting and improving the pop-up hexagonal quick adapter, after the pop-up hexagonal quick adapter is split into the adapter, the tail rod, the tail connecting rod and the hexagonal connecting head, a structure capable of adjusting the extension connection of the rod body is added; the length-adjustable adapter at the position of the electric drill can be conveniently used as a coupler to be connected with tools such as a drill bit or a sleeve matched with the electric drill for use, and the length adjusting requirement of the pop-up hexagonal quick adapter when the pop-up hexagonal quick adapter is used at the position of the electric drill is met.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drill accessories, in particular to an electric drill connecting coupling. Background Art

[0002] An electric drill is a drilling tool that uses electricity as power. It is a common product among power tools. The working principle of an electric drill is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity electric motor performs magnetic field cutting and work operation, and drives the operating device through the transmission mechanism, which drives the gears to increase the power of the drill bit, thereby allowing the drill bit to scrape the surface of the object and penetrate the object better. When the electric drill is used with different drill bits or disassembly tools for quick change, the worker will install a pop-up hexagonal quick conversion connector on the connector of the electric drill. After the tail rod of the conversion connector is inserted into the connector of the electric drill and locked, the conversion connector can clamp drill bits or disassembly tools of multiple specifications for transmission.

[0003] At present, when a pop-up hexagonal quick-change joint is clamped on the connection head of an electric drill, the hexagonal rod head of the tail rod will be clamped and locked on the connection head of the electric drill. However, the tail rod length of this pop-up hexagonal quick-change joint is usually fixed in size. When workers need to disassemble mechanical parts with different entry depths, the fixed-length pop-up hexagonal quick-change joint cannot adjust the length according to needs, and other sizes of pop-up hexagonal quick-change joints need to be purchased additionally, which increases the cost of using the electric drill. For this reason, we propose an electric drill connection coupling. Utility Model Content

[0004] The main purpose of the utility model is to provide an electric drill connecting coupling. By disassembling and improving a pop-up hexagonal quick conversion joint, the utility model disassembles the pop-up hexagonal quick conversion joint into a conversion joint, a tail rod, a tail connecting rod and a hexagonal connecting head, and newly adds a structure that can adjust the extension connection of the rod body, so that it is convenient to use the adjustable length conversion joint as a coupling to connect the electric drill with a matching drill bit or sleeve and other tools at the electric drill, and meets the length adjustment requirements of the pop-up hexagonal quick conversion joint when used at the electric drill, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An electric drill connecting coupling comprises a conversion joint, a tail rod, a middle connecting rod, a tail connecting rod, a hexagonal joint and an inner stop mechanism, wherein the tail end of the conversion joint is fixed with the tail rod, and a middle connecting rod is arranged between the tail rod and the tail connecting rod, and the lower rod end surfaces of the tail rod and the middle connecting rod are respectively fixed with an embedded connecting rod A and an embedded connecting rod B, and the upper rod end surfaces of the middle connecting rod and the tail connecting rod are respectively provided with an embedded hole A and an embedded hole B, and the embedded hole A and the embedded hole B are respectively embedded with the embedded connecting rod A and the embedded connecting rod B, and the tail connecting rod is away from the lower end of the embedded hole B. A hexagonal connector is integrally formed on the rod end face, and an internal stop mechanism is interference fitly embedded on the outside of the vertical rod surface of the embedded connecting rod A and the embedded connecting rod B. The internal stop mechanism includes a fixed tube, an internal stop ring, a limit disk, a tapered head disk and a spring. The fixed tube is interference fitly embedded in the embedded connecting rod A and the embedded connecting rod B, and an internal stop ring is pressed into the tube at the exposed opening of the embedded connecting rod A and the embedded connecting rod B. A tapered head disk is passed through the inner stop ring, and the rear disk surface of the tapered head disk is integrally formed with a limit disk that is inserted into the fixed tube, and a spring is filled in the fixed tube behind the limit disk.

[0007] Furthermore, connecting holes are opened outside the vertical rod surfaces of the embedded connecting rods A and B, and fixed tubes are inserted into the connecting holes through interference fit; the fixed tubes can be installed at the connecting holes of the embedded connecting rods A and B through interference fit under pressure.

[0008] Furthermore, the ring hole diameter of the inner stop ring is larger than the disk body diameter of the tapered head disk, and the ring body diameter of the inner stop ring is smaller than the disk body diameter of the limiting disk; the inner stop ring can prevent the limiting disk from slipping out of the ring opening after the tapered head disk passes through.

[0009] Furthermore, the rod lengths of the embedding connecting rod A and the embedding connecting rod B are the same, and the rod length of the embedding connecting rod A is the same as the hole depths of the embedding holes A and B; the embedding connecting rod A and the embedding connecting rod B can be adapted to be clamped in the embedding holes A and B.

[0010] Furthermore, the rod bodies of the embedded connecting rod A and the embedded connecting rod B are hexagonal rod bodies, and the cavities of the embedded holes A and the embedded holes B are inner hexagonal holes; the embedded connecting rods A and the embedded connecting rods B with hexagonal rod bodies can be firmly connected in the embedded holes A and the embedded holes B in the inner hexagonal holes.

[0011] Furthermore, the length of the cavity between the bottom of the connecting hole and the tail disk surface of the limiting disk is the same as the length of the spring; the spring can maintain elastic force between the connecting hole and the limiting disk.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model disassembles and improves the pop-up hexagonal quick conversion joint. After the pop-up hexagonal quick conversion joint is disassembled into the conversion joint, the tail rod, the tail connecting rod and the hexagonal connecting head, a new structure for adjusting the extension connection of the rod body is added, which facilitates the use of the adjustable length conversion joint as a coupling to connect the electric drill with tools such as a drill bit or a sleeve, and meets the length adjustment requirement of the pop-up hexagonal quick conversion joint when used in the electric drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of an electric drill connecting coupling.

[0015] Figure 2 The utility model is an exploded view of an electric drill connecting coupling.

[0016] Figure 3 This is a schematic diagram of the disassembly of an embedded connecting rod B and an inner stop mechanism of an electric drill connecting coupling according to the utility model.

[0017] Figure 4 The utility model is an exploded view of the inner stop mechanism of an electric drill connecting coupling.

[0018] In the figure: 1. conversion joint; 2. tail rod; 3. middle connecting rod; 4. tail connecting rod; 5. hexagonal connector; 6. embedded connecting rod A; 7. embedded connecting rod B; 8. embedded hole A; 9. embedded hole B; 10. inner stop mechanism; 11. fixed pipe; 12. inner stop ring; 13. limit plate; 14. taper head plate; 15. spring; 16. connecting hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, an electric drill connecting coupling includes a conversion joint 1, a tail rod 2, a middle connecting rod 3, a tail connecting rod 4, a hexagonal connecting head 5 and an inner stop mechanism 10, the tail end of the conversion joint 1 is fixed with the tail rod 2, and the middle connecting rod 3 is arranged between the tail rod 2 and the tail connecting rod 4, the lower rod end surfaces of the tail rod 2 and the middle connecting rod 3 are respectively fixed with embedded connecting rods A6 and embedded connecting rods B7, and the upper rod end surfaces of the middle connecting rod 3 and the tail connecting rod 4 are respectively opened with embedded holes A8 and embedded holes B9, and the embedded holes A8 and embedded holes B9 are respectively embedded with embedded connecting rods A6 and embedded connecting rods B7, and the lower rod end surface of the tail connecting rod 4 away from the embedded hole B9 is integrally formed. There is a hexagonal connector 5, and an inner stop mechanism 10 is interference fit outside the vertical rod surface of the embedded connecting rod A6 and the embedded connecting rod B7. The inner stop mechanism 10 includes a fixed tube 11, an inner stop ring 12, a limit plate 13, a tapered head plate 14 and a spring 15. The fixed tube 11 is interference fit inside the embedded connecting rod A6 and the embedded connecting rod B7, and the fixed tube 11 has an inner stop ring 12 pressed into the tube at the exposed mouth of the embedded connecting rod A6 and the embedded connecting rod B7, a tapered head plate 14 is passed through the inner stop ring 12, and the rear plate surface of the tapered head plate 14 is integrally formed with a limit plate 13 that is inserted into the fixed tube 11, and a spring 15 is filled in the fixed tube 11 behind the limit plate 13.

[0021] Among them, the vertical rod surfaces of the embedded connecting rods A6 and B7 are provided with connecting holes 16, and the fixed tube 11 is inserted into the connecting hole 16 by interference fit; the fixed tube 11 can be installed at the connecting holes 16 of the embedded connecting rods A6 and B7 by interference fit under pressure.

[0022] Among them, the ring hole diameter of the inner stop ring 12 is larger than the disk body diameter of the tapered head disk 14, and the ring body diameter of the inner stop ring 12 is smaller than the disk body diameter of the limiting disk 13; the inner stop ring 12 can prevent the limiting disk 13 from escaping from the ring mouth after the tapered head disk 14 passes through.

[0023] Among them, the embedding connecting rod A6 and the embedding connecting rod B7 have the same rod length, and the rod length of the embedding connecting rod A6 is the same as the hole depth of the embedding hole A8 and the embedding hole B9; the embedding connecting rod A6 and the embedding connecting rod B7 can be adapted to be clamped in the embedding hole A8 and the embedding hole B9.

[0024] Among them, the rod bodies of the embedded connecting rods A6 and B7 are hexagonal rod bodies, and the holes of the embedded holes A8 and B9 are inner hexagonal holes; the embedded connecting rods A6 and B7 with hexagonal rod bodies can be firmly connected in the embedded holes A8 and B9 of the inner hexagonal holes.

[0025] The length of the cavity between the bottom of the connecting hole 16 and the rear disk surface of the limiting disk 13 is the same as the length of the spring 15 ; the spring 15 can maintain elastic force between the connecting hole 16 and the limiting disk 13 .

[0026] It should be noted that the utility model is a coupling for connecting an electric drill. When using the coupling for connecting an electric drill of the utility model, the hexagonal connecting head 5 of the tail connecting rod 4 can be clamped in the connecting head of the electric drill for normal installation, and then the middle connecting rod 3 is clamped into the embedding hole B9 of the tail connecting rod 4 with the embedding connecting rod B7, and then the embedding hole A8 of the middle connecting rod 3 can be clamped into the embedding connecting rod A6 behind the tail rod 2. At this time, the conversion joint 1 is completely connected at the connecting head of the electric drill with the help of the tail rod 2, the middle connecting rod 3 and the tail connecting rod 4. After the assembly is completed, the worker can insert a drill bit or other matching tools into the conversion joint 1 to extend the use of the rotating part of the electric drill. When the embedded connecting rod A6 and the embedded connecting rod B7 are respectively embedded in the embedded hole A8 and the embedded hole B9, the tapered head plate 14 of the inner stop mechanism 10 can be pressed back into the inner stop ring 12 and the fixed tube 11, and the limit plate 13 behind the tapered head plate 14 presses the spring 15 close to the bottom of the connecting hole 16 to form an elastic driving force, so that the embedded connecting rod A6 and the embedded connecting rod B7 are respectively embedded in the embedded hole A8 and the embedded hole B9. 7 is respectively embedded in the embedding hole A8 and the embedding hole B9 to obtain the inner stop position, which increases the firmness and anti-retraction of the embedding connecting rod A6 and the embedding connecting rod B7 respectively embedded in the embedding hole A8 and the embedding hole B9, and the middle connecting rod 3 can be pulled out after being forcibly pulled away from the tail connecting rod 4, and then the middle connecting rod 3 can be extended and connected with multiple middle connecting rods 3 by relying on the embedding connecting rod B7 and the embedding hole A8 to form an extended rod body, and then the connected extended rod body is re-positioned and clamped at the tail connecting rod 4 and the tail rod 2 with the embedding connecting rod B7 and the embedding hole A8, which is convenient for the electric drill to connect the electric drill with a conversion joint with an adjustable length to use tools such as a drill bit or a sleeve. The conversion joint 1, the tail rod 2, the tail connecting rod 4 and the hexagonal connector 5 of the utility model are the original structures of the pop-up hexagonal quick conversion joint. The utility model is improved by being able to adjust the length after these structures are separated. The clamping principle of the conversion joint 1 can refer to the common pop-up hexagonal quick conversion joint on the market.

[0027] It should be noted that the utility model is an electric drill connecting coupling, and the components in the utility model are all components known to technical personnel in the field, and the structure and principle thereof are all known to technical personnel through technical manuals or through conventional experimental methods.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric drill coupling, comprising a conversion joint (1), characterized in that: The conversion joint (1) further comprises a tail rod (2), a middle connecting rod (3), a tail connecting rod (4), a hexagonal connecting head (5) and an inner stop mechanism (10); the tail end of the conversion joint (1) is fixed with the tail rod (2), and a middle connecting rod (3) is arranged between the tail rod (2) and the tail connecting rod (4); the lower rod end surfaces of the tail rod (2) and the middle connecting rod (3) are respectively fixed with an embedded connecting rod A (6) and an embedded connecting rod B (7); the upper rod end surfaces of the middle connecting rod (3) and the tail connecting rod (4) are respectively provided with an embedded hole A (8) and an embedded hole B (9); the embedded connecting rod A (6) and the embedded connecting rod B (7) are respectively embedded in the embedded hole A (8) and the embedded hole B (9); the lower rod end surface of the tail connecting rod (4) away from the embedded hole B (9) is integrally formed with a hexagonal connecting head (5); the embedded hole A (8) and the embedded hole B (9) are respectively provided with an embedded hole A (6) and the embedded hole B (7 ... embedded hole A (8) and the embedded hole B (9) are respectively provided with an embedded hole A (6) and the embedded hole B (7); the embedded hole A (8) and the embedded hole B (9) are respectively provided with an embedded hole A (6) and the embedded hole B (7); the embedded hole A (8) and the embedded hole B (9) are respectively provided with an embedded hole A (6 An inner stop mechanism (10) is interference fitly embedded outside the vertical rod surface of the connecting rod A (6) and the embedded connecting rod B (7), and the inner stop mechanism (10) comprises a fixed tube (11), an inner stop ring (12), a limit plate (13), a tapered head plate (14) and a spring (15). The fixed tube (11) is interference fitly embedded in the embedded connecting rod A (6) and the embedded connecting rod B (7), and an inner stop ring (12) is pressed into the fixed tube (11) at the exposed opening of the embedded connecting rod A (6) and the embedded connecting rod B (7), a tapered head plate (14) is inserted into the inner stop ring (12), and a limit plate (13) that is inserted into the fixed tube (11) is integrally formed on the rear plate surface of the tapered head plate (14), and a spring (15) is filled in the fixed tube (11) behind the limit plate (13).

2. The electric drill coupling according to claim 1, characterized in that: A connecting hole (16) is provided outside the vertical rod surface of the embedded connecting rod A (6) and the embedded connecting rod B (7), and a fixed pipe (11) is inserted into the connecting hole (16) through interference fit.

3. The electric drill coupling according to claim 1, characterized in that: The diameter of the annular hole of the inner stop ring (12) is larger than the diameter of the disk body of the tapered head disk (14), and the diameter of the annular body of the inner stop ring (12) is smaller than the diameter of the disk body of the limiting disk (13).

4. The electric drill coupling according to claim 1, characterized in that: The rod lengths of the embedding rod A (6) and the embedding rod B (7) are the same, and the rod length of the embedding rod A (6) is the same as the hole depths of the embedding hole A (8) and the embedding hole B (9).

5. The electric drill coupling according to claim 4, characterized in that: The rod bodies of the embedding rod A (6) and the embedding rod B (7) are hexagonal rod bodies, and the cavities of the embedding holes A (8) and the embedding holes B (9) are inner hexagonal cavities.

6. The electric drill coupling according to claim 2, characterized in that: The length of the cavity between the bottom of the connecting hole (16) and the tail disk surface of the limiting disk (13) is the same as the length of the spring (15).

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