Portable multifunctional telescopic screwdriver

Abstract

The utility model discloses a portable multifunctional telescopic screwdriver relates to hand tool technical field, including handle, sword body and tool bit, the handle is a hollow cavity, the sword body can axially slidingly be equipped in the cavity of handle, be provided with telescopic positioning mechanism between sword body and handle for when the telescopic motion of sword body relative to handle, position it in the work position of extension, the cavity of handle is equipped with the tool bit storage bin for depositing multiple spare tool bits, the utility model discloses the sword body is designed as telescopic, can accommodate sword body in handle when not using, greatly reduce the overall volume, the convenient storage in pocket, tool bag little space, especially suitable for outdoor travel, emergency repair etc. Scene, the inside integration of handle tool bit storage bin makes the user can carry multiple specifications of tool bit, effectively solved the trouble of needing to carry the whole box of tool, avoided the risk of tool bit loss.

Description

Technical Field

[0001] This utility model relates to the field of manual tool technology, and in particular to a portable multi-functional telescopic screwdriver. Background Technology

[0002] Screwdrivers are commonly used tools in daily repairs and work. Currently, screwdrivers on the market mainly suffer from the following shortcomings: First, traditional screwdrivers, especially flathead and Phillips head screwdrivers, are mostly of fixed length and have limited functionality. To handle different screw sizes, users need to carry a complete tool set, resulting in large size, heavy weight, and poor portability. Second, some interchangeable screwdrivers usually have their heads stored separately in a matching storage box, requiring users to search for the head when switching, which is cumbersome. Furthermore, the heads are easily lost outdoors or when there is no storage box. In addition, some screwdrivers have a fixed length, which is not suitable for narrow spaces or situations requiring a long lever arm, limiting their usage scenarios. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a portable multi-functional telescopic screwdriver that is compact in structure, easy to carry, versatile in function, and convenient in switching between cutting heads.

[0004] To achieve the above objectives, this utility model provides a portable multi-functional telescopic screwdriver. The utility model provides the following technical solution, including a handle, a blade, and a cutting head, which constitute the basic operating structure of the screwdriver.

[0005] The handle is a hollow cavity; it is used to house the blade and provide a gripping area.

[0006] The blade is axially slidably fitted into the cavity of the handle; used to achieve overall length adjustment of the screwdriver.

[0007] A telescopic positioning mechanism is provided between the blade and the handle to position the blade in the extended working position when it moves telescopically relative to the handle.

[0008] The cavity of the tool holder is provided with a tool head storage compartment for storing multiple spare tool heads, which is used to integrate and store replacement tool heads of various specifications.

[0009] Furthermore, the telescopic positioning mechanism includes a positioning part disposed on the blade body and an elastic engaging part disposed on the handle and cooperating with the positioning part; used to achieve the positioning function through engaging.

[0010] When the blade moves to the working position or the storage position, the elastic engaging part engages with the positioning part; this provides a clear locking feel at the preset position.

[0011] Furthermore, the positioning part consists of at least two spaced positioning grooves formed on the outer wall of the blade; used to provide fixing points for different telescopic positions.

[0012] The elastic engaging portion includes: Two symmetrically arranged push blocks are connected to a button at one end. The button can move along a groove above the handle to synchronously transmit external pressing pressure to the internal mechanism.

[0013] The other end of the push block is connected to an inclined block; used to convert the horizontal thrust into a force that causes the connecting block to rotate.

[0014] The inner cavity of the knife handle is symmetrically rotatably provided with one end of two connecting blocks, the other end of each connecting block abutting against the corresponding inclined block, and a locking rod is connected between the other ends of the two connecting blocks; this is used to form a linkage mechanism to convert the linear motion of the inclined block into the lifting motion of the locking rod.

[0015] Both ends of the lever are connected to one end of a tension spring, and the other end of the tension spring is connected to the side wall of the inner cavity of the handle; this is used to provide a reset force to the lever after the button is released, so that it automatically returns to its original position and locks into the positioning groove.

[0016] Furthermore, the blade storage compartment is separated from the sliding cavity containing the blade by a partition fixedly installed in the blade handle cavity, which is used to isolate the blade movement area and the blade storage area to prevent mutual interference.

[0017] Furthermore, the end of the blade storage compartment is provided with an openable and closable tail cover; used to close the rear end of the storage compartment and facilitate the replenishment and retrieval of blades.

[0018] The front end of the handle is provided with an openable end cap; used to close the opening at the front end of the handle to prevent the blade from accidentally slipping out and to prevent dust.

[0019] Furthermore, the front end of the blade is provided with a connecting part for detachably installing the blade head; this allows for quick replacement of the working blade head.

[0020] The connecting part is a grooved connection port or a magnetic connection port, used to fix the cutter head by mechanical clamping or magnetic adsorption.

[0021] Furthermore, the outer surface of the handle is provided with anti-slip texture to increase grip friction and prevent slippage during operation.

[0022] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model features a retractable blade design, allowing the blade to be stored inside the handle when not in use, significantly reducing the overall size and making it easy to fit into pockets, tool bags, and other small spaces. It is particularly suitable for outdoor travel and emergency repairs. An integrated blade storage compartment inside the handle allows users to carry multiple blade sizes, effectively eliminating the need to carry a full toolbox and preventing the risk of lost blades. The retractable structure is secured by elastic buckles, ensuring simple operation and reliable fixation. The blade storage compartment design makes blade switching quick and convenient, eliminating the need to search for and carry a separate blade box, thus improving work efficiency. This utility model boasts an ingenious structural design with few parts, making it easy to manufacture and assemble, and readily applicable. Attached Figure Description

[0023] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the entire utility model; Figure 3 This is a schematic diagram of the blade structure in this utility model; Figure 4 yes Figure 3 Enlarged detail image of point A in the middle; Figure 5 This is a cross-sectional view of the tool holder in this utility model; Figure 6 This is a schematic diagram of the connection structure between the inclined block and the connecting block in this utility model.

[0025] In the diagram: 1. Handle; 2. Blade; 3. Blade tip; 4. Telescopic positioning mechanism; 5. Blade tip storage compartment; 12. Tail cap; 13. End cap; 21. Connecting part; 41. Positioning groove; 43. Push block; 44. Button; 45. Slide groove; 46. Inclined block; 47. Connecting block; 48. Locking rod; 49. Tension spring; 51. Partition plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 6As shown, this utility model provides a portable multi-functional telescopic screwdriver, which is mainly composed of a handle 1, a blade 2, a screwdriver head 3, a telescopic positioning mechanism 4, and a screwdriver head storage compartment 5.

[0028] The handle 1 is made of ABS engineering plastic injection molding and is a cylindrical hollow cavity. Its outer surface is processed with anti-slip texture to enhance the friction when gripping and prevent slipping. The front end of the handle 1 is connected to an openable end cap 13 by thread. The end cap 13 has a through cavity in the center for the blade 2 to be accommodated. The end of the handle 1 is also connected to an openable tail cap 12 by thread.

[0029] In a further embodiment, the blade 2 is a slender steel rod that is axially slidably fitted into the cavity of the handle 1. The front end of the blade 2 is provided with a connecting part 21 for detachably installing the blade head 3. It should be noted that the blade head connection scheme used in this embodiment is existing technology: the connecting part 21 is a hexagonal groove connection port that can be matched and inserted with a standard hexagonal screwdriver bit; in another embodiment, a common strong magnetic hexagonal groove connection port in existing technology can also be used, that is, a strong magnet is set at the bottom of the hexagonal groove, and the blade head 3 is fixed by the dual action of mechanical insertion and magnetic adsorption; the innovation of this utility model is not in the specific structure of this connecting part 21, but in the overall technical solution formed by combining such existing connection technology with an innovative telescopic structure and blade head storage scheme.

[0030] In a further embodiment, the blade storage compartment 5 is separated from the sliding cavity that accommodates the blade body 2 by a partition 51 with a cross-sectional shape fixedly disposed in the cavity of the handle 1; the partition 51 is fixedly connected to the inner wall of the handle 1 by adhesive, dividing the inner cavity of the handle into a sliding cavity in the middle and storage cavities in the upper and lower parts. The blade storage compartment 5 can store multiple spare blades 52 of different specifications, such as Phillips head PH1, PH2, and slotted head SL4, SL6 and other commonly used specifications.

[0031] In a further embodiment, the telescopic positioning mechanism 4 is disposed between the blade 2 and the handle 1 to position the blade 2 in the extended working position. The mechanism includes a positioning part and an elastic engaging part. The positioning part consists of several annular positioning grooves 41 spaced apart on the outer wall of the blade 2, which can correspond to multiple working positions of the blade 2, such as fully retracted, partially extended, and fully extended.

[0032] The elastic engaging part includes two symmetrically arranged push blocks 43, a button 44, a wedge block 46, a connecting block 47, a locking rod 48, and a tension spring 49; the button 44 is located in a slide groove 45 above the handle 1 and can move along the slide groove 45; one end of the two push blocks 43 is connected to the button 44, and the other end is connected to the wedge block 46 respectively; the inner cavity of the handle 1 is symmetrically rotatably arranged with one end of two connecting blocks 47, the other end of each connecting block 47 abuts against the inclined surface of the corresponding wedge block 46, and the other ends of the two connecting blocks 47 are connected to a locking rod 48; both ends of the locking rod 48 are connected to one end of a tension spring 49, and the other end of the tension spring 49 is fixed to the side wall of the inner cavity of the handle 1.

[0033] The working principle of the telescopic positioning mechanism 4 is as follows: When the length of the blade 2 needs to be adjusted, press the button 44, push the block 43 to drive the inclined block 46 to move forward, the inclined surface of the inclined block 46 presses the connecting block 47, causing the connecting block 47 to rotate around the fulcrum, thereby driving the locking rod 48 to lift upward and disengage from the positioning groove 41 on the blade 2. At this time, the blade 2 can extend and retract freely; when the blade 2 moves to the target position, release the button 44, and under the restoring force of the tension spring 49, the locking rod 48 moves downward and locks into the corresponding positioning groove 41 to achieve positioning.

[0034] In another embodiment, the connecting part 21 adds a magnetic attraction function to the hexagonal groove connection port. Specifically, a neodymium iron boron strong magnet is embedded at the bottom of the hexagonal groove at the front end of the blade 2, with the magnet surface slightly lower than the groove opening plane, forming a dual fixing structure that combines mechanical engagement and magnetic attraction. Correspondingly, the spare blade 52 is made of magnetically conductive material or has a magnetically conductive sheet embedded at its tail, so that the blade 3 can be firmly attracted by the strong magnet while being mechanically connected by inserting into the hexagonal groove. This improvement further enhances the connection stability of the blade 3 while maintaining the compatibility of standard hexagonal bits, and also allows the blade 3 to be magnetically fixed in a designated position in the blade storage compartment 5, effectively preventing shaking and abnormal noise during carrying.

[0035] When in storage, the blade 2 is completely retracted into the handle 1, and the locking lever 48 engages with the innermost positioning groove 41; the front end cap 13 and the end cap 12 are both closed, forming a compact whole; when in use, open the front end cap 13, press the button 44, pull the blade 2 out to the required length, and then release the button 44, and the locking lever 48 will automatically engage with the corresponding positioning groove 41 to achieve positioning; when the blade head needs to be replaced, open the end cap 12, take out the spare blade head 52 of the required size from the blade head storage compartment 5, and insert it into the connecting part 21 at the front end of the blade 2 to start working.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable multi-functional telescopic screwdriver, comprising a handle (1), a blade (2), and a cutting head (3), characterized in that: The handle (1) is a hollow cavity; The blade (2) is axially slidably fitted into the cavity of the handle (1); A telescopic positioning mechanism (4) is provided between the blade (2) and the handle (1) for positioning the blade (2) in the extended working position when the blade (2) moves telescopically relative to the handle (1); The cavity of the handle (1) is provided with a tool head storage compartment (5) for storing multiple spare tool heads.

2. The portable multi-functional telescopic screwdriver according to claim 1, characterized in that: The telescopic positioning mechanism (4) includes a positioning part disposed on the blade (2) and an elastic engaging part disposed on the handle (1) and cooperating with the positioning part; When the blade (2) moves to the working position or the storage position, the elastic engaging part engages with the positioning part.

3. A portable multi-functional telescopic screwdriver according to claim 2, characterized in that: The positioning part is at least two spaced positioning grooves (41) formed on the outer wall of the blade (2); The elastic engaging portion includes: Two symmetrically arranged push blocks (43) are connected to a button (44) at one end. The button (44) can move along the slide groove (45) above the handle (1). The other end of the push block (43) is connected to an inclined block (46); The inner cavity of the handle (1) is symmetrically rotatably provided with one end of two connecting blocks (47), the other end of each connecting block (47) abuts against the corresponding inclined block (46), and a locking rod (48) is connected between the other ends of the two connecting blocks (47). Both ends of the lever (48) are connected to one end of a tension spring (49), and the other end of the tension spring (49) is connected to the side wall of the inner cavity of the handle (1).

4. A portable multi-functional telescopic screwdriver according to claim 1, characterized in that: The blade storage compartment (5) is separated from the sliding cavity that accommodates the blade body (2) by a partition (51) fixedly installed in the cavity of the handle (1).

5. A portable multi-functional telescopic screwdriver according to claim 4, characterized in that: The end of the blade storage compartment (5) is provided with an openable and closable tail cap (12); The front end of the handle (1) is provided with an openable end cap (13).

6. A portable multi-functional telescopic screwdriver according to claim 1, characterized in that: The front end of the blade (2) is provided with a connecting part (21) for detachably installing the blade head (3); the connecting part (21) is a groove connection port.

7. A portable multi-functional telescopic screwdriver according to claim 1, characterized in that: The outer surface of the handle (1) is provided with anti-slip texture.

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