Screwdriver with head capable of being replaced quickly
By setting a clamping part and a lock head at the end of the rod part of the screwdriver, the quick disassembly and installation of the screwdriver head is achieved, which solves the problems of inconvenient replacement of existing screwdriver and high production costs, improves maintenance efficiency and reduces costs.
Patent Information
- Application Number
- CN202421612779.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-09
AI Technical Summary
When replacing the existing screw batch, the entire batch is required to be unscrewed, which is inconvenient to disassemble, which affects the efficiency of watch repair, and is also high in production costs. It is necessary to produce multiple different models of screw batches separately.
A screwdriver including a rod part and a batch head is designed. One end of the rod part is provided with a clamping part, the batch head is embedded in the clamping part, and the outer sleeve of the clamping part is provided with a lock head, and the clamping part is locked by the lock head to realize rapid disassembly and installation.
By quickly disassembling and installing the batch head, the disassembly efficiency is significantly improved, production costs are reduced, and the batch head structure is simplified, making it easy to carry and save space.
Smart Images
Figure CN222791879U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of screwdrivers, and in particular to a screwdriver with a quickly replaceable head. Background Art
[0002] A screwdriver is a common tool used to turn screws into place, usually with a thin wedge-shaped head that fits into the slot or recess in the screw head.
[0003] For some watches or precision instruments, precision screwdrivers are needed for disassembly and assembly. Different screws require screwdriver bits of different shapes and sizes, and different screwdriver bits need to be replaced. Currently, when replacing the bit, the entire bit needs to be replaced. When replacing, the entire bit is unscrewed, and then the new bit is screwed in. Disassembly and replacement are inconvenient, which seriously affects the efficiency of watch maintenance. In addition, the production cost is very high, and multiple screwdriver bits of different models need to be produced separately. After a complete set, the overall cost increases. Utility Model Content
[0004] The present disclosure provides a screwdriver with a quickly replaceable head to solve one of the technical problems recognized by the inventor.
[0005] The present invention provides a screwdriver with a quickly replaceable head, comprising a rod and a bit, wherein a clamping portion is provided at one end of the rod, one end of the bit is embedded in the clamping portion, and a locking head for locking the clamping portion is sleeved on the outer side of the clamping portion.
[0006] Preferably, the clamping portion includes two symmetrically arranged clips, the outer sides of the clips are provided with external threads, the ends of the clips are provided with first locking bevels, a clamping groove is opened between the two clips, and one end of the screwdriver bit is embedded in the clamping groove.
[0007] Preferably, an internal thread is provided on the inner side of the lock head, a second locking bevel is provided on the inner side of the end of the lock head, the lock head is provided with a slot allowing the screwdriver to pass through, the slot is through-connected with the clamping groove, and the internal thread is cooperatively connected with the external thread.
[0008] Preferably, the side surfaces of the two clips are provided with limiting openings at positions corresponding to the limiting openings, and the side surfaces of the bit are fixedly connected with limiting blocks at positions corresponding to the limiting openings. The limiting blocks are embedded in the limiting openings and are clearance-matched with the limiting openings.
[0009] Preferably, a limiting column is arranged between the rod portion and the clamping portion, a spring installation groove is opened on the side of the limiting column, a spring is embedded in the spring installation groove, the spring installation groove is movably connected to a limiting pin, and one end of the limiting pin is arranged to abut against the spring.
[0010] Preferably, a matching groove is provided on the inner side of the lock head, a limiting groove is provided on the side of the matching groove, the limiting column is embedded in the matching groove, and one end of the limiting pin is embedded in the limiting groove.
[0011] Preferably, one end of the rod away from the lock head is rotatably connected to a supporting turntable.
[0012] Preferably, a bearing is embedded in one end of the rod portion close to the supporting turntable, a rotating rod is fixedly connected to the middle portion of the inner side of the supporting turntable, and one end of the rotating rod is connected to the bearing.
[0013] Preferably, a gripping portion is fixedly connected to a side surface of the rod portion.
[0014] Preferably, a plurality of anti-sliding blocks are arranged on the outer side of the gripping portion.
[0015] The beneficial effects of the present invention are mainly as follows: the utility model provides a clamping portion for clamping the screwdriver bit at one end of the rod portion, and locks it with a lock head. When disassembling, it only needs to turn the lock head a few times. The installation is similar, and a new screwdriver bit can be inserted and the lock head can be turned a few times. The efficiency of disassembly and replacement is greatly improved. Compared with the traditional screwdriver head, the screwdriver head structure is simpler, the production cost is greatly reduced, and it is also more convenient to carry and saves space.
[0016] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a screwdriver according to an embodiment of the present disclosure;
[0019] Figure 2 An exploded view of the screwdriver structure of an embodiment of the present disclosure;
[0020] Figure 3 is a cross-sectional view of a screwdriver according to an embodiment of the present disclosure;
[0021] Figure 4 It is a schematic diagram of the rod structure of an embodiment of the present disclosure;
[0022] Icons: 1-rod; 2-clip; 21-clip groove; 22-first locking bevel; 23-limiting mouth; 3-locking head; 31-slot; 32-second locking bevel; 33-matching groove; 34-limiting groove; 4-batch head; 41-limiting block; 51-limiting column; 52-spring mounting groove; 53-spring; 54-limiting pin; 6-support turntable; 61-turn rod; 62-bearing; 7-grip; 71-anti-sliding block. DETAILED DESCRIPTION
[0023] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0024] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.
[0025] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present disclosure, 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; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0027] Example
[0028] like Figure 1-4 As shown, this embodiment provides a screwdriver with a quickly replaceable head, including a rod 1 and a bit 4. The rod 1 is a cylindrical structure, and a clamping portion is integrally formed at one end of the rod 1. One end of the bit 4 is inserted into the clamping portion. A locking head 3 is sleeved on the outer side of the clamping portion. The clamping portion is locked by the locking head 3, thereby fixing the bit 4.
[0029] Specifically, the clamping portion includes two symmetrically arranged clips 2, the cross-section of the two clips 2 is a semicircular structure, and a gap is left between the two clips 2. The outer side of the clip 2 is provided with an external thread, and the end of the clip 2 is chamfered to form a first locking bevel 22. A circular clamping groove 21 is formed between the two clips 2, and one end of the screwdriver bit 4 is inserted into the clamping groove 21.
[0030] The inner side of the lock head 3 is provided with an internal thread that cooperates with the external thread. The end of the lock head 3 is inclined to form a second locking bevel 32. The lock head 3 is provided with a slot 31 that allows the screwdriver bit 4 to pass through. The slot 31 is connected to the clamping groove 21, and the external thread is connected to the internal thread.
[0031] In this embodiment, the screwdriver bit 4 is inserted into the clamping groove 21, and then the internal thread of the locking head 3 is matched with the external thread of the clip 2, and the locking head 3 is rotated to make the second locking bevel 32 close to the first locking bevel 22. In the process of the second locking close to the first locking bevel 22, the second locking bevel 32 presses the first locking bevel 22, so that the ends of the two clips 2 are deformed, and the screwdriver bit 4 is clamped together to fix the screwdriver bit 4. In this embodiment, the clip 2 is integrally formed with the rod 1, and the clip 2 has a certain elastic deformation capacity.
[0032] In one embodiment, the positions corresponding to the side surfaces of the two clips 2 are provided with limiting openings 23, and the positions corresponding to the side surfaces of the bit 4 and the limiting openings 23 are integrally formed with limiting blocks 41, which are embedded in the limiting openings 23 and are clearance-matched with the limiting openings 23. When installing the bit 4, the limiting block 41 is aligned with the limiting openings 23 and inserted, and the bit 4 is limited by the limiting openings 23 and the limiting block 41, so as to prevent the bit 4 from rotating relative to the clip 2.
[0033] In one embodiment, a limiting column 51 is integrally formed between the rod portion 1 and the clamping portion, a spring mounting groove 52 is opened on the side of the limiting column 51, a spring 53 is embedded in the spring mounting groove 52, the spring mounting groove 52 is movably connected to a limiting pin 54, and one end of the limiting pin 54 is set to abut against the spring 53.
[0034] A matching groove 33 is provided on the inner side of the lock head 3 , and the matching groove 33 is clearance-matched with the limiting column 51 . A limiting groove 34 is provided on the side of the matching groove 33 , and the limiting column 51 is embedded in the matching groove 33 . One end of the limiting pin 54 is embedded in the limiting groove 34 .
[0035] In this embodiment, when the lock head 3 is installed into one end of the rod 1, the matching groove 33 and the limiting column 51 are matched with each other, and the limiting pin 54 is squeezed. When the limiting pin 54 moves to the position of the limiting groove 34, the spring 53 pushes one end of the limiting pin 54 to be embedded in the limiting groove 34. The width of the limiting groove 34 is greater than the diameter of the limiting pin 54, so that the limiting pin 54 has a certain upward and downward movement space in the limiting groove 34. The lock head 3 is limited by the limiting pin 54, so that it cannot be disassembled after installation. When installing the batch head 4, only a small distance displacement is required to loosen or tighten the clip 2. The lock head 3 is limited to prevent the lock head 3 from falling or losing, and it does not affect the disassembly and installation at the same time, killing two birds with one stone.
[0036] In one embodiment, one end of the rod 1 away from the lock head 3 is rotatably connected to a supporting turntable 6 .
[0037] Specifically, a bearing 62 is embedded in one end of the rod 1 close to the supporting turntable 6, and a rotating rod 61 is fixedly connected to the middle part of the inner side of the supporting turntable 6, and one end of the rotating rod 61 is connected to the bearing 62. By providing a rotatable supporting turntable 6, when in use, the index finger is against the supporting turntable 6, and the middle finger and thumb hold the rod 1, and the rod 1 can be rotated by the middle finger and thumb to remove and install the screw, and the operation can be performed with one hand, freeing the other hand to hold the clock, which is more convenient to operate.
[0038] In one embodiment, the side of the rod 1 is fixedly connected with a gripping portion 7. A plurality of anti-sliding blocks 71 are arranged outside the gripping portion 7. By providing a plurality of raised anti-sliding blocks 71, the friction between the fingers and the gripping portion 7 is increased to prevent slipping.
[0039] The working principle of the utility model is as follows: when installing the screwdriver bit 4, first rotate the lock head 3 so that the second locking bevel leaves the first locking bevel, release the pressure of the lock head 3 on the clip 2, and the clip 2 returns to its original state. At this time, insert one end of the screwdriver bit 4 into the clip groove 21 from the slot 31 of the lock head 3, and align the limit block 41 with the limit opening 23 for insertion, and then rotate the lock head 3 in the opposite direction so that the second locking bevel approaches the first locking bevel. The second locking bevel presses the first locking bevel so that the two clips 2 are deformed by pressure, and the two clips 2 are brought close to each other to lock the screwdriver bit 4, thereby completing the assembly of the screwdriver bit 4. When in use, insert the end of the screwdriver bit 4 into the slot of the screw head, hold the support turntable 6 with the index finger, pinch the anti-sliding block 71 with the thumb and the middle finger, rotate the rod 1 with the thumb and the middle finger, drive the screwdriver bit 4 to rotate, thereby tightening or unscrewing the screw. Similarly, when removing the bit 4, turn the lock 3 to make the second locking bevel leave the first locking bevel, release the pressure of the lock 3 on the clip 2, and the clip 2 returns to its original state. The clip 2 releases the pressure on the bit 4, and the bit 4 can be easily pulled out for replacement.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.
Claims
1. A screwdriver with a quickly replaceable head, characterized in that: include: A rod and a screwdriver bit, wherein one end of the rod is provided with a clamping portion, one end of the screwdriver bit is embedded in the clamping portion, and a locking head for locking the clamping portion is sleeved on the outer side of the clamping portion.
2. A screwdriver with a quickly replaceable head according to claim 1, characterized in that: The clamping part includes two symmetrically arranged clips, the outer sides of the clips are provided with external threads, the ends of the clips are provided with first locking bevels, a clamping groove is opened between the two clips, and one end of the screwdriver bit is embedded in the clamping groove.
3. A screwdriver with a quickly replaceable head according to claim 2, characterized in that: An internal thread is arranged on the inner side of the lock head, a second locking bevel is arranged on the inner side of the end of the lock head, a slot for allowing the screwdriver to pass through is opened on the lock head, the slot is connected with the clamping groove, and the internal thread is matched with the external thread.
4. A screwdriver with a quickly replaceable head according to claim 3, characterized in that: Limiting openings are provided at positions corresponding to the side surfaces of the two clips, and limiting blocks are fixedly connected to positions corresponding to the side surfaces of the bit and the limit openings. The limit blocks are embedded in the limit openings and are clearance-matched with the limit openings.
5. A screwdriver with a quickly replaceable head according to claim 4, characterized in that: A limiting column is arranged between the rod portion and the clamping portion, a spring installation groove is opened on the side of the limiting column, a spring is embedded in the spring installation groove, the spring installation groove is movably connected to a limiting pin, and one end of the limiting pin is arranged to abut against the spring.
6. A screwdriver with a quickly replaceable head according to claim 5, characterized in that: A matching groove is provided on the inner side of the lock head, a limiting groove is provided on the side of the matching groove, the limiting column is embedded in the matching groove, and one end of the limiting pin is embedded in the limiting groove.
7. A screwdriver with a quickly replaceable head according to claim 1, characterized in that: One end of the rod away from the lock head is rotatably connected to a supporting turntable.
8. A screwdriver with a quickly replaceable head according to claim 7, characterized in that: A bearing is embedded in one end of the rod portion close to the supporting turntable, a rotating rod is fixedly connected to the middle portion of the inner side of the supporting turntable, and one end of the rotating rod is connected to the bearing.
9. The screwdriver with a quickly replaceable head according to claim 1, characterized in that: A gripping portion is fixedly connected to the side surface of the rod portion.
10. A screwdriver with a quickly replaceable head according to claim 9, characterized in that: A plurality of anti-sliding blocks are arranged on the outer side of the gripping portion.