Quick-inserting and quick-pulling structure of screwdriver
By using a combined structure of steel balls and open shrapnel in the driver, the problem of inconvenient operation of fast pulling of the driver in the prior art is solved, and the fast insertion and removal of the batch head is realized, which improves the user experience.
Patent Information
- Application Number
- CN202420549461.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The fast pulling technology of existing drivers has problems such as long operation strokes, poor ergonomics, and the need to lift the clamp or press the clamp when pulling out the head of the batch, resulting in poor user experience.
A quick plug and pull-out structure of a driver is designed. The steel ball is combined with the open shrapnel, so that the open shrapnel of the steel ball expands into the cavity around the clamp during the loading of the batch head until the steel ball is reset and enters the stop slot of the batch head and locks through the open shrapnel, so that the operation of quickly inserting and pulling out when the batch head is loaded and removed is realized.
It realizes quick insertion and unplugging of the batch head, and the operation is simple, and the steps of lifting the clamp hood are omitted. The structure is simpler and the user experience is better.
Smart Images
Figure CN222779492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of screwdrivers, in particular to a quick-insertion and quick-extraction structure of a screwdriver. Background Art
[0002] The insertion and extraction of the screwdriver bit are two separate structures. There are two methods in the prior art. One is quick insertion by adding a non-metallic part in the ferrule so that when the bit is inserted, the steel ball can be squeezed downward to make room for the insertion of the bit. After insertion, the steel ball rebounds and is stuck in the bit slot. When the bit is removed, the ferrule needs to be pulled up to remove the bit. The other is quick extraction by adding an additional lever. When the button is pressed, the lever lifts the ferrule to achieve quick extraction of the bit. The above methods have the following defects: quick extraction is impossible and the user experience is poor. The prior art has too long a stroke during operation and poor ergonomics. In the prior art, the ferrule needs to be pulled up or pressed to lift up when the bit is pulled out.
[0003] Therefore, in order to solve the deficiencies in the prior art, a quick-insertion and quick-extraction structure of a screwdriver with a simple structure needs to be designed. Utility Model Content
[0004] The utility model provides a quick-insertion and quick-extraction structure of a screwdriver to solve the problems of the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a quick-insertion and quick-extraction structure of a screwdriver comprises: an output shaft, a steel ball, a ferrule, an opening spring piece, a limit assembly and a screwdriver bit, the output shaft is provided with a screwdriver bit slot, the right end of the output shaft is symmetrically provided with steel ball holes connected with the screwdriver bit slot up and down, the steel ball is arranged in the steel ball hole, the ferrule is sleeved on the right end of the output shaft and is provided with a cavity connected with the steel ball hole, the opening spring piece is sleeved on the right end of the output shaft and is located in the cavity, the steel ball is located inside the opening spring piece, the limit assembly is arranged at the right end of the output shaft, the limit assembly is used to limit the sliding of the opening spring piece, the screwdriver bit is matched and arranged in the screwdriver bit slot, and the screwdriver bit is provided with a stop groove matching the steel ball.
[0006] A further improvement is that the limit assembly includes a gasket and an elastic retaining ring for the shaft, the output shaft includes a guide portion, a hexagonal or polygonal groove is provided on the right side of the guide portion, the opening spring piece is sleeved on the outside of the guide portion, the gasket is sleeved on the outside of the guide portion and is located on the right side of the opening spring piece, and the elastic retaining ring for the shaft is clamped in the groove and is located on the right side of the gasket.
[0007] As a further improvement, a threaded groove portion is provided on the outer side of the ferrule.
[0008] As a further improvement, a U-shaped protrusion facing the steel ball is provided on the inner side of the opening spring piece.
[0009] Compared with the prior art, the quick-insertion and quick-extraction structure of the screwdriver of the utility model has the following beneficial effects:
[0010] The steel ball cooperates with the opening spring sheet, so that the opening spring sheet expands into the cavity around the ferrule during the process of loading the bit, until the steel ball is reset and enters the stop groove of the bit and is locked by the opening spring sheet, so that the bit can be quickly inserted and removed when loading and removing. The operation is simple, and compared with the prior art, there is no need to disengage the second bit locking structure when pulling out the bit, and the operation of pulling up the ferrule or pressing the fixed ferrule when pulling out the bit is omitted, and the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a structural diagram of the first batch head insertion process in the utility model.
[0012] Figure 2 This is a structural diagram of the second process of inserting a screwdriver bit in the utility model.
[0013] Figure 3 This is a structural diagram of the third process of inserting a screwdriver bit in the utility model.
[0014] Figure 4 This is a schematic diagram of the structure of the opening spring in the utility model.
[0015] In the figure, 1-output shaft, 11-bit groove, 12-steel ball groove, 13-guide part, 131-hexagonal or polygonal groove, 2-steel ball, 3-ferrule, 31-cavity, 32-thread groove part, 4-opening spring piece, 41-U-shaped protrusion, 5-limiting assembly, 51-gasket, 52-elastic washer for shaft, 6-bit, 61-stop groove. DETAILED DESCRIPTION
[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] Below is a combination of the embodiments and the attached Figures 1 to 4, the technical solution of the utility model is further elaborated.
[0019] Example 1
[0020] A quick-insertion and quick-extraction structure of a screwdriver, comprising: an output shaft 1, a steel ball 2, a ferrule 3, an opening spring piece 4, a limiting assembly 5 and a screwdriver bit 6, wherein the output shaft 1 is provided with a screwdriver bit slot 11, and a steel ball hole 12 which is symmetrically provided at the right end of the output shaft 1 and is connected to the screwdriver bit slot 11 up and down, the steel ball 2 is arranged in the steel ball hole 12, the ferrule 3 is sleeved on the right end of the output shaft 1 and is provided with a cavity 31 which is connected to the steel ball hole 12, the opening spring piece 4 is sleeved on the right end of the output shaft 1 and is located in the cavity 31, the steel ball 2 is located inside the opening spring piece 4, the limiting assembly 5 is arranged at the right end of the output shaft 1, and the limiting assembly 5 is used to limit the sliding of the opening spring piece 4, the screwdriver bit 6 is matched and arranged in the screwdriver bit slot 11, and the screwdriver bit 6 is provided with a stop groove 61 which matches the steel ball 2.
[0021] like Figure 1 to Figure 4 As shown, the use principle of the utility model is: when the screwdriver bit 6 is inserted into the screwdriver bit slot 11 of the output shaft 1, the left end of the screwdriver bit 6 resists and pushes the steel ball 2 to move outward along the cavity 31. At this time, the opening spring piece 4 is pushed outward by the steel ball 2, and the cavity 31 has an increased space to accommodate the opening spring piece 4. The opening spring piece 4 is deformed by force and expanded around, and the opening spring piece 4 makes room for the steel ball 2 to move outward until the screwdriver bit 6 moves to the left until the steel ball 2 reaches the stop groove 61, and the opening spring piece 4 rebounds to the initial position, and the screwdriver bit is clamped by the steel ball 4. When the screwdriver bit 6 needs to be taken out, the screwdriver bit 2 is pulled to the right to make the steel ball 2 avoid to the outside. At this time, the opening spring piece 4 is deformed by force and expanded, making room for the steel ball 2 to move outward, and the screwdriver bit 6 can be quickly taken out.
[0022] The steel ball cooperates with the opening spring sheet, so that the opening spring sheet expands into the cavity around the ferrule during the process of loading the bit, until the steel ball is reset and enters the stop groove of the bit and is locked by the opening spring sheet, so that the bit can be quickly inserted and removed when loading and removing. The operation is simple, and compared with the prior art, there is no need to disengage the second bit locking structure when pulling out the bit, and the operation of pulling up the ferrule or pressing the fixed ferrule when pulling out the bit is omitted, and the structure is simpler.
[0023] As a further preferred embodiment, the limiting assembly 5 includes a gasket 51 and an elastic retaining ring 52 for the shaft, the output shaft 1 includes a guide portion 13, a hexagonal or polygonal groove 131 is provided on the right side of the guide portion 13, the opening spring piece 4 is sleeved on the outside of the guide portion 13, the gasket 51 is sleeved on the outside of the guide portion 13 and is located on the right side of the opening spring piece 4, the elastic retaining ring 52 for the shaft is clamped in the groove 131 and is located on the right side of the gasket 51, to ensure that the opening spring piece 4 installed inside cannot move laterally, thereby ensuring stability in use.
[0024] As a further preferred embodiment, a threaded groove portion 32 is provided on the outer side of the ferrule 3 to facilitate the operator to hold it.
[0025] As a further preferred embodiment, a U-shaped protrusion 41 facing the steel ball 2 is provided on the inner side of the opening spring sheet 4. The U-shaped protrusion 41 contacts the steel ball 2, making it easier for the steel ball 2 to push the opening spring sheet 4 outward.
[0026] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A quick-insertion and quick-extraction structure of a screwdriver, characterized in that: include: An output shaft, a steel ball, a ferrule, an opening spring piece, a limit assembly and a screwdriver bit, wherein the output shaft is provided with a screwdriver bit slot, the right end of the output shaft is symmetrically provided with steel ball holes connected with the screwdriver bit slot up and down, the steel ball is arranged in the steel ball hole, the ferrule is sleeved on the right end of the output shaft and is provided with a cavity connected with the steel ball hole, the opening spring piece is sleeved on the right end of the output shaft and is located in the cavity, the steel ball is located inside the opening spring piece, the limit assembly is arranged at the right end of the output shaft, the limit assembly is used to limit the sliding of the opening spring piece, the screwdriver bit is matched in the screwdriver bit slot, and the screwdriver bit is provided with a stop groove matching the steel ball.
2. The quick-insertion and quick-extraction structure of a screwdriver according to claim 1, characterized in that: The limiting assembly includes a gasket and an elastic retaining ring for the shaft, the output shaft includes a guide portion, a hexagonal or polygonal groove is provided on the right side of the guide portion, the opening spring piece is sleeved on the outside of the guide portion, the gasket is sleeved on the outside of the guide portion and is located on the right side of the opening spring piece, and the elastic retaining ring for the shaft is clamped in the groove and is located on the right side of the gasket.
3. The quick-insertion and quick-extraction structure of a screwdriver according to claim 1, characterized in that: A thread groove portion is provided on the outer side of the ferrule.
4. The quick-insertion and quick-extraction structure of a screwdriver according to claim 1, characterized in that: A U-shaped protrusion facing the steel ball is arranged on the inner side of the opening spring piece.