Novel electric screwdriver bit

Abstract

The utility model discloses a novel electric screw driver bit, and aims to solve the problem that in the prior art, operators who need to be engaged in a large amount of related maintenance work are inconvenient to operate. The technical problems that a key or a screwdriver with an inner triangular or outer triangular lock connector is used for unscrewing or screwing a large number of special screws including inner triangles or outer triangles every day, the workload is large, and the efficiency is low are solved, and the tool bit comprises a tool bit body and an inner triangular part slidably arranged on the tool bit body in a sleeving mode through a spring; the tool bit main body comprises an outer hexagonal connecting rod arranged at one end and an outer triangular part arranged at the other end, and the outer hexagonal connecting rod and the outer triangular part are integrally formed and connected; the outer triangular part comprises a protruding block connecting part at one end and an outer triangular head at the other end, and the protruding block connecting part and the outer triangular head are integrally formed and connected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a novel electric screwdriver bit. Background Art

[0002] In large public places such as subways, railway stations, and bus stations, due to the strict safety protection requirements for various distribution boxes, distribution cabinets, servers, communication cabinets, connectors, and other equipment, the lock cores and connecting bolts need to be different from conventional types. The lock cores or connecting bolts commonly used in these occasions include inner triangles or outer triangles, which require special matching keys or screwdrivers to unlock or rotate the screws. However, for operators who need to perform a large amount of related maintenance work, using keys or screwdrivers with specific lock joints to loosen or tighten a large number of such special screws every day is a large workload and inefficient, and it is difficult for manual operation to accurately control the torque for loosening or tightening, which may cause the screws to slip, thereby increasing unnecessary consumables loss. Utility Model Content

[0003] The purpose of the utility model is to provide a novel electric screwdriver bit to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A novel electric screwdriver bit can be clamped on a bit lock sleeve of the electric screwdriver, comprising a bit body and an inner triangular part slidably sleeved on the bit body through a spring.

[0006] The cutter head body includes an outer hexagonal connecting rod and an outer triangular portion connected to the outer hexagonal connecting rod, and the two are integrally formed and connected; the outer triangular portion includes a convex block connecting portion and an outer triangular head connected to the convex block connecting portion, and the two are integrally formed and connected;

[0007] The inner triangular portion includes a groove connecting portion slidably mounted on the outer wall of the protrusion connecting portion and an inner triangular head connected to the groove connecting portion, and the two are integrally formed and connected; when in use, the protrusion connecting portion and the groove connecting portion are slidably mounted, and the outer triangular head and the inner triangular head are slidably mounted.

[0008] The spring is sleeved on the outer wall of the protrusion connection part, one end of the spring is fixedly connected to one end of the protrusion connection part away from the outer triangular head, and the other end is fixedly connected to one end of the groove connection part away from the inner triangular head; when the spring is in a natural state, the outer triangular head is retracted into the inner triangular head; when the spring is in a compressed state, the outer triangular head protrudes outside the inner triangular head.

[0009] Preferably, the protrusion connection part includes a limiting disk arranged near one end of the external hexagonal connecting rod and capable of limiting and abutting against the groove connection part, and a sleeve cylinder connected to the limiting disk; a plurality of limiting guide grooves arranged along the axial direction of the sleeve cylinder are evenly distributed on the outer wall of the sleeve cylinder in the circumferential direction; the groove connection part includes a cylindrical groove matching the sleeve cylinder and a limiting platform capable of limiting and abutting against the top of the sleeve cylinder; a limiting guide strip corresponding to the limiting guide groove is provided on the inner wall of the cylindrical groove; the sleeve cylinder and the cylindrical groove are slidably sleeved; the limiting guide strip and the limiting guide groove are slidably limited and connected.

[0010] Preferably, one end of the spring is fixedly connected to the limiting disk, and the other end is fixedly connected to the notch of the cylindrical groove; the spring is telescopically sleeved on the outside of the sleeved cylinder; the outer diameter of the limiting disk is equal to the outer diameter of the groove connecting part; the outer diameter of the spring is slightly smaller than the outer diameter of the groove connecting part.

[0011] Preferably, the spring is provided with a galvanized corrosion-resistant layer.

[0012] Preferably, the external hexagonal connecting rod is made of ferromagnetic material and has a chamfered end surface.

[0013] Compared with the prior art, the new electric screwdriver head of the present application has the following beneficial effects:

[0014] The utility model connects the inner triangular head to the outer triangular head through a spring. When in use, there is no need for manual operation to switch the cutter head. The inner triangular or outer triangular lock core or bolt can be easily loosened or tightened by driving the electric screwdriver, thereby improving the work efficiency of the staff. At the same time, the electric screwdriver can greatly reduce the probability of screw slippage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the spring in the embodiment of the utility model when it is in a natural state;

[0016] Figure 2 This is a schematic diagram of the structure of the spring in the embodiment of the utility model when it is in a compressed state;

[0017] Figure 3 This is an exploded view of the structure of an embodiment of the utility model;

[0018] Figure 4 It is a structural explosion diagram of another perspective of an embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the cutter head body in the embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the inner triangle portion in the embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of an embodiment of the utility model being connected to an electric screwdriver;

[0022] Figure 8 It is a structural schematic diagram of an outer triangular lock core in the prior art;

[0023] Fig. 9 It is a structural schematic diagram of an inner triangular lock core in the prior art.

[0024] Figure numerals: 1. electric screwdriver; 11. tool head lock sleeve; 2. outer triangular lock core; 3. inner triangular lock core; 4. tool head body; 41. outer hexagonal connecting rod; 42. outer triangular part; 421. protrusion connecting part; 422. limiting disk; 423. sleeve cylinder; 424. limiting guide groove; 425. outer triangular head; 5. inner triangular part; 51. groove connecting part; 52. cylindrical groove; 53. limiting platform; 54. limiting guide strip; 55. inner triangular head; 6. spring. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] Example 1

[0027] like Figure 1-9 As shown, this embodiment shows a new type of electric screwdriver bit that can be clamped on the bit locking sleeve 11 of the electric screwdriver 1, including a bit body 4 and an inner triangular portion 5 that can be slidably mounted on the bit body 4 through a spring 6.

[0028] The tool head body 4 includes an outer hexagonal connecting rod 41 and an outer triangular portion 42 connected to the outer hexagonal connecting rod 41, and the two are integrally formed and connected. Specifically, the outer hexagonal connecting rod 41 is adapted to the tool head lock sleeve 11 of the electric screwdriver 1 on the market; the outer triangular portion 42 includes a convex connecting portion 421 and an outer triangular head 425 connected to the convex connecting portion 421, and the two are integrally formed and connected. Specifically, the outer triangular head 425 is clamped and matched with the inner triangular lock core 3 or the bolt;

[0029] The inner triangular portion 5 includes a groove connecting portion 51 slidably mounted on the outer wall of the protrusion connecting portion 421 and an inner triangular head 55 connected to the groove connecting portion 51, and the two are integrally formed and connected. Specifically, the inner triangular head 55 is engaged with the outer triangular lock core 2 or the bolt. When in use, the protrusion connecting portion 421 and the groove connecting portion 51 are slidably mounted, and the outer triangular head 425 and the inner triangular head 55 are slidably mounted.

[0030] The spring 6 is sleeved on the outer wall of the protrusion connection part 421, one end of the spring 6 is fixedly connected to one end of the protrusion connection part 421 away from the outer triangular head 425, and the other end is fixedly connected to one end of the groove connection part 51 away from the inner triangular head 55; when the spring 6 is in a natural state, the outer triangular head 425 is retracted into the inner triangular head 55; when the spring 6 is in a compressed state, the outer triangular head 425 protrudes outside the inner triangular head 55. During specific use, when the lock core or bolt is an outer triangular shape, the inner triangular head 55 of the tool head of the electric screwdriver 1 is directly engaged with the outer triangular protrusion of the lock core or the bolt, and the electric screwdriver 1 drives the inner triangular head 55 to complete the loosening or tightening operation; when the lock core or the bolt is an inner triangular shape, the inner triangular head 55 of the tool head of the electric screwdriver 1 abuts against the top surface of the lock core or the bolt to compress and contract the spring 6, thereby making the inner outer triangular head 425 protrude outside the inner triangular head 55. At this time, the outer triangular head 425 is engaged with the inner triangular groove of the lock core or the bolt, and the electric screwdriver 1 drives the outer triangular head 425 to complete the loosening or tightening operation.

[0031] Further explanation, in a further feasible implementation of this embodiment, the outer hexagonal connecting rod 41 is made of ferromagnetic material, and the end face is provided with a chamfer. The magnetic connection and chamfer design make the installation of the cutter head more portable.

[0032] Example 2

[0033] like Figure 1-9 As shown, another embodiment shows a new type of electric screwdriver bit that can be clamped on the bit locking sleeve 11 of the electric screwdriver 1, including a bit body 4 and an inner triangular portion 5 that can be slidably mounted on the bit body 4 through a spring 6.

[0034] The cutter head body 4 includes an outer hexagonal connecting rod 41 and an outer triangular portion 42 connected to the outer hexagonal connecting rod 41, and the two are integrally formed and connected; the outer triangular portion 42 includes a convex block connecting portion 421 and an outer triangular head 425 connected to the convex block connecting portion 421, and the two are integrally formed and connected;

[0035] The inner triangular portion 5 includes a groove connecting portion 51 slidably mounted on the outer wall of the protrusion connecting portion 421 and an inner triangular head 55 connected to the groove connecting portion 51, and the two are integrally formed and connected; when in use, the protrusion connecting portion 421 and the groove connecting portion 51 are slidably mounted, and the outer triangular head 425 and the inner triangular head 55 are slidably mounted.

[0036] The spring 6 is sleeved on the outer wall of the protrusion connection part 421, one end of the spring 6 is fixedly connected to one end of the protrusion connection part 421 away from the outer triangular head 425, and the other end is fixedly connected to one end of the groove connection part 51 away from the inner triangular head 55; when the spring 6 is in a natural state, the outer triangular head 425 is retracted into the inner triangular head 55; when the spring 6 is in a compressed state, the outer triangular head 425 protrudes outside the inner triangular head 55.

[0037] Further explanation, in further implementation of this embodiment, as Figure 2-3 As shown, the protrusion connection part 421 includes a limiting disc 422 arranged near one end of the outer hexagonal connecting rod 41 and capable of limiting and abutting against the groove connection part 51, and a sleeve cylinder 423 connected to the limiting disc 422; the sleeve cylinder 423 has a plurality of limiting guide grooves 424 evenly distributed in the circumferential direction of the outer wall of the sleeve cylinder 423 and arranged along the axial direction of the sleeve cylinder 423; the groove connection part 51 includes a cylindrical groove 52 matching the sleeve cylinder 423 and a limiting platform 53 capable of limiting and abutting against the top of the sleeve cylinder 423; the inner wall of the cylindrical groove 52 is provided with a limiting guide groove 424 corresponding to the limiting guide groove 424 The positioning guide strip 54; the sleeve cylinder 423 and the cylindrical groove 52 are slidably sleeved; the limiting guide strip 54 and the limiting guide groove 424 are slidably limitedly connected; specifically, the groove connecting part 51 is connected to the protrusion connecting part 421 by the slidable connection between the sleeve cylinder 423 and the cylindrical groove 52, and the slidable limiting connection between the limiting guide strip 54 and the limiting guide groove 424 realizes the relative rotation between the limiting groove connecting part 51 and the protrusion connecting part 421, thereby realizing the rapid conversion between the inner triangle head 55 and the outer triangle head 425.

[0038] Further, in these embodiments, one end of the spring 6 is fixedly connected to the limiting disc 422, and the other end is fixedly connected to the notch of the cylindrical groove 52; the spring 6 is telescopically sleeved on the outer side of the sleeved cylinder 423; the outer diameter of the limiting disc 422 is equal to the outer diameter of the groove connecting portion 51; the outer diameter of the spring 6 is slightly smaller than the outer diameter of the groove connecting portion 51. Specifically, when the top surface of the inner triangular head 55 abuts against the top surface of the inner triangular lock core or bolt, the spring 6 at the rear of the inner triangular head 55 is compressed and contracted, causing the inner triangular head 55 to slide down, thereby causing the inner outer triangular head 425 to protrude outward, and at this time, the outer triangular head 425 can cooperate with the inner triangular lock core or bolt to achieve twisting, that is, the elastic force of the spring 6 can be used to achieve automatic conversion from the inner triangular head 55 to the outer triangular head 425. Further, in these embodiments, the spring 6 is provided with a galvanized corrosion-resistant layer to increase the service life.

[0039] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A new type of electric screwdriver bit, which can be clamped on the bit lock sleeve of the electric screwdriver, is characterized by: It includes a cutter head body and an inner triangular portion slidably sleeved on the cutter head body through a spring; The cutter head body includes an outer hexagonal connecting rod and an outer triangular portion connected to the outer hexagonal connecting rod, and the two are integrally formed and connected; the outer triangular portion includes a convex block connecting portion and an outer triangular head connected to the convex block connecting portion, and the two are integrally formed and connected; The inner triangular portion comprises a groove connecting portion slidably sleeved on the outer wall of the convex connecting portion and an inner triangular head connected to the groove connecting portion, and the two are integrally molded and connected; when in use, the convex connecting portion and the groove connecting portion are slidably sleeved, and the outer triangular head and the inner triangular head are slidably sleeved; The spring is sleeved on the outer wall of the protrusion connection part, one end of the spring is fixedly connected to one end of the protrusion connection part away from the outer triangular head, and the other end is fixedly connected to one end of the groove connection part away from the inner triangular head; when the spring is in a natural state, the outer triangular head is retracted into the inner triangular head; when the spring is in a compressed state, the outer triangular head protrudes outside the inner triangular head.

2. The new electric screwdriver bit according to claim 1 is characterized in that: The protrusion connection part includes a limiting disc arranged near one end of the external hexagonal connecting rod and capable of limiting and abutting against the groove connection part, and a sleeve cylinder connected to the limiting disc; a plurality of limiting guide grooves arranged along the axial direction of the sleeve cylinder are evenly distributed on the outer wall of the sleeve cylinder in the circumferential direction; the groove connection part includes a cylindrical groove matching the sleeve cylinder and a limiting platform capable of limiting and abutting against the top of the sleeve cylinder; a limiting guide strip corresponding to the limiting guide groove is provided on the inner wall of the cylindrical groove; the sleeve cylinder and the cylindrical groove are slidably sleeved; the limiting guide strip and the limiting guide groove are slidably limited and connected.

3. The new electric screwdriver bit according to claim 2 is characterized in that: One end of the spring is fixedly connected to the limiting disc, and the other end is fixedly connected to the notch of the cylindrical groove; the spring is telescopically sleeved on the outside of the sleeved cylinder; the outer diameter of the limiting disc is equal to the outer diameter of the groove connecting part; the outer diameter of the spring is slightly smaller than the outer diameter of the groove connecting part.

4. The new electric screwdriver bit according to claim 3 is characterized in that: The spring is provided with a zinc-plated corrosion-resistant layer.

5. The new electric screwdriver bit according to claim 1 is characterized in that: The outer hexagonal connecting rod is made of ferromagnetic material and has a chamfered end surface.

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