Double-end screwdriver

Abstract

The utility model relates to the technical field of screwdriver bits, and discloses a double-end screwdriver which comprises a sleeve rod, screwdriver rods are slidably connected to the interiors of the two ends of the sleeve rod, spline sleeves are fixedly connected to the two ends of each screwdriver rod, spline shafts are slidably connected to the interiors of the spline sleeves, and connecting blocks are fixedly connected to the close sides of the two spline shafts. Clamping grooves are formed in the two sides of the connecting block, limiting grooves are formed in the two ends of the screwdriver rod, first springs are fixedly connected into the limiting grooves, and a moving block is fixedly connected to one end of each first spring. According to the detachable screwdriver, the movable block can drive the connecting rod to move by pressing the pressing rod, and then the limiting block is driven to be separated from the clamping groove, so that the screwdriver head is detached, the screwdriver head is connected and fixed in a clamping mode, the screwdriver head is convenient to replace when damaged, rapid detachment and installation are achieved, and the practicability is high. And the service life of the screwdriver is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of screw heads, in particular to a double-headed screwdriver. Background Art

[0002] A screwdriver bit is a tool used to tighten screws, also known as a screwdriver head or screw head. It comes in different shapes and sizes depending on the type and size of the screw, ensuring proper tightening and securing. Common screwdriver bits include Phillips, hexagonal, and flat heads, and are widely used. They are a common tool in mechanical assembly and maintenance.

[0003] When using a screwdriver, the blade must be inserted into the screw hole and then rotated to loosen or tighten the screw, thereby achieving the effect of screwing. However, during use, the blade of the screwdriver is easily worn and damaged. Since screwdrivers are mostly integrated structures, the blade cannot be replaced, resulting in a shortened service life. To address this problem, those skilled in the art have proposed a double-headed screwdriver to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a double-head screwdriver, which aims to improve the problem in the prior art that the screw head is an integrated structure, resulting in the inability to replace the cutter head in time when it is worn and damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double-headed screwdriver, comprising a sleeve rod, wherein both ends of the sleeve rod are slidably connected to the batch rod, and both ends of the batch rod are fixedly connected to a spline sleeve, and the spline sleeve is slidably connected to the spline shaft. The proximal sides of the two spline shafts are fixedly connected to connecting blocks on both sides of the connecting block. A clamping slot is provided at each end of the batch rod, and a limiting slot is provided inside the limiting slot. A spring is fixedly connected to the inside of the limiting slot, and one end of the spring is fixedly connected to the moving block. Both sides of the moving block are rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the connecting block. The bottom of the connecting block is fixedly connected to the limiting block, and the outside of the moving block is fixedly connected to a pressing rod. Locking assemblies are provided at both ends of the batch rod, and the locking assembly is used to limit the movement of the pressing rod. An adjusting assembly is provided on the top of the sleeve rod, and the adjusting assembly is used to adjust the length of the screwdriver.

[0006] Furthermore, the locking assembly includes a fixed block, which is fixedly connected to one end of the batch rod near the push rod, and a spring 2 is fixedly connected to the inside of the fixed block, and the other end of the spring 2 is fixedly connected to a slider, one side of the slider is fixedly connected to a pull rod, and the other side of the slider is fixedly connected to an insertion rod, and a slot is provided on the side of the push rod close to the fixed block.

[0007] Furthermore, a limiting groove is provided inside the batch rod at the bottom of the limiting groove, the limiting block is slidably connected to the inside of the limiting groove, and the outside of the limiting block is engaged with the inside of the adjacent side slot.

[0008] Furthermore, the adjustment assembly includes a support block, which is fixedly connected to one end of the top of the sleeve rod. The top of the support block is rotatably connected to a rotating rod. One end of the rotating rod is fixedly connected to a spring three. The other end of the spring three is fixedly connected to the top of the sleeve rod. The other end of the rotating rod is fixedly connected to a clamping block. A plurality of positioning grooves are evenly provided on the surface of the sleeve rod, and the clamping block is plugged into the positioning groove.

[0009] Furthermore, one end of the push rod extends to the outside of the batch rod, and the sliding connection of the connecting block is inside the limiting groove.

[0010] Furthermore, the sliding block is slidably connected to the inside of the fixed block, and the second set of springs is arranged outside the pull rod.

[0011] Furthermore, the outer portion of the insertion rod is slidably connected to the inner portion of the adjacent slot.

[0012] Furthermore, a screwdriver head is fixedly connected to the outside of the spline shaft, the outside of the connecting block is slidably connected to the inside of the screwdriver rod, and the surfaces of the screwdriver rod and the screwdriver head are both provided with a wear-resistant layer.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by pressing the push rod, the moving block drives the connecting rods connected to its two ends to move, and then pushes the connecting block to slide, which can drive the limit block to separate from the slot. Then, the screwdriver head can be disassembled by pulling it, and the screwdriver head is connected and fixed by snapping, so that it is easy to replace when it is damaged, realizing quick disassembly and assembly, extending the service life of the screwdriver, and at the same time, screwdriver heads of different sizes can be replaced according to usage requirements, thereby improving the flexibility of use.

[0015] 2. In the utility model, by pressing the rotating rod, the spring three is contracted, and then the card block is moved and disengaged from the positioning groove. Therefore, the screwdriver rod can be pulled to engage the card block with the positioning grooves at different positions on the surface of the screwdriver rod, and the movement of the card block is limited by the rebound of the spring three. The overall length of the screwdriver can be adjusted to meet different usage requirements, thereby improving adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a double-headed screwdriver proposed in the present invention;

[0017] Figure 2This is a schematic diagram of the spline shaft structure of a double-headed screwdriver proposed in the utility model;

[0018] Figure 3 This is a cross-sectional view of the screwdriver rod of a double-head screwdriver proposed in the utility model;

[0019] Figure 4 This is a cross-sectional view of a fixing block of a double-head screwdriver proposed in the present invention;

[0020] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 6 The utility model is a schematic diagram of the positioning groove structure of a double-head screwdriver.

[0022] Legend:

[0023] 1. Batch rod; 2. Spline sleeve; 3. Screwdriver head; 4. Press rod; 5. Spline shaft; 6. Connecting block; 7. Limiting groove; 8. Spring 1; 9. Moving block; 10. Connecting rod; 11. Connecting block; 12. Limiting groove; 13. Limiting block; 14. Slot; 15. Fixed block; 16. Spring 2; 17. Slider; 18. Pull rod; 19. Insert rod; 20. Slot; 21. Sleeve rod; 22. Support block; 23. Rotating rod; 24. Spring 3; 25. Slot; 26. Positioning groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1-Figure 3A double-headed screwdriver comprises a sleeve rod 21, both ends of the sleeve rod 21 are slidably connected to the batch rod 1, both ends of the batch rod 1 are fixedly connected to a spline sleeve 2, the spline sleeve 2 is slidably connected to a spline shaft 5, the adjacent sides of the two spline shafts 5 are fixedly connected to a connecting block 6, both sides of the connecting block 6 are provided with a card slot 14, and both ends of the batch rod 1 are provided with a limiting groove 7, the limiting groove 7 is fixedly connected to a spring 8, one end of the spring 8 is fixedly connected to a moving block 9, both sides of the moving block 9 are rotatably connected to a connecting rod 10, and the other end of the connecting rod 10 is rotatably connected to a connecting block 11, the bottom of the connecting block 11 is fixedly connected to a limiting block 13, and the outside of the moving block 9 is fixedly connected to a pressing rod 4. Locking assemblies are provided at both ends of the batch rod 1, and the locking assemblies are used to limit the movement of the pressing rod 4. An adjusting assembly is provided at the top of the sleeve rod 21, and the adjusting assembly is used to adjust the length of the screwdriver.

[0026] Specifically, by inserting the batch rod 1 into the interior of the sleeve rod 21, it is convenient to hold and use, the screwdriver head 3 is connected to the spline shaft 5 through the screwdriver head 3, and the spline shaft 5 is inserted into the interior of the spline sleeve 2. At the same time, the shape of the spline shaft 5 matches the shape of the inner side of the spline sleeve 2, so that when the batch rod 1 rotates, the screwdriver head 3 can be stably driven to rotate to avoid sliding. The screwdriver head 3 is fixed by a card connection so that it will not fall off during use. By pressing the push rod 4, the moving block 9 can be pushed to move inside the limiting groove 7, and the two The connecting rod 10 connected to the end moves, so that the connecting rod 10 pushes the connecting block 11 to slide. At the same time, the limiting groove 12 will limit the limiting block 13, causing it to slide under the drive of the connecting block 11, thereby separating the limiting block 13 from the card slot 14, thereby realizing the disassembly of the screwdriver head 3. The screwdriver head 3 is connected and fixed by a card connection, so that it is easy to replace when it is damaged, realizing quick disassembly and assembly, extending the service life of the screwdriver, and at the same time, screwdriver heads 3 of different sizes can be replaced according to usage needs, thereby improving the flexibility of use.

[0027] Reference Figure 4 The locking assembly includes a fixed block 15, which is fixedly connected to one end of the batch rod 1 near the push rod 4. A spring 2 16 is fixedly connected to the inside of the fixed block 15, and the other end of the spring 2 16 is fixedly connected to a slider 17. One side of the slider 17 is fixedly connected to a pull rod 18, and the other side of the slider 17 is fixedly connected to an insertion rod 19. A slot 20 is provided on the side of the push rod 4 near the fixed block 15. The slider 17 is slidably connected to the inside of the fixed block 15, the spring 2 16 is sleeved on the outside of the pull rod 18, and the outside of the insertion rod 19 is slidably connected to the inside of the slot 20 on the adjacent side.

[0028] Specifically, by pulling the pull rod 18, the slider 17 can be driven to slide inside the fixed block 15, so that the spring 2 16 is compressed by the pressure applied by the fixed block 15. At the same time, the slider 17 will drive the insertion rod 19 to move, so that the insertion rod 19 is disengaged from the slot 20, thereby releasing the restriction on the push rod 4, making it easier to disassemble the screwdriver head 3. After the head is installed, the elastic potential energy can be released by the spring 2 16 to push the insertion rod 19 into the slot 20, thereby limiting the movement of the push rod 4, realizing the restriction on the push rod 4, avoiding accidental pressing during use, causing the screwdriver head 3 to fall off, thereby ensuring the user experience.

[0029] Reference Figure 1 、 Figure 5 and Figure 6 The adjusting assembly includes a support block 22, which is fixedly connected to one end of the top of the sleeve rod 21. The top of the support block 22 is rotatably connected to a rotating rod 23. One end of the rotating rod 23 is fixedly connected to a spring three 24. The other end of the spring three 24 is fixedly connected to the top of the sleeve rod 21. The other end of the rotating rod 23 is fixedly connected to a clamping block 25. A plurality of positioning grooves 26 are evenly opened on the surface of the batch rod 1, and the clamping block 25 is plugged into the positioning groove 26.

[0030] Specifically, by pressing the rotating rod 23, the spring three 24 is contracted, and the spring three 24 is rotated while the other end drives the block 25 to move, so that the block 25 moves and disengages from the positioning groove 26. Therefore, by pulling the screwdriver rod 1 and under the push of the spring three 24, the block 25 can be engaged with the positioning grooves 26 at different positions on the surface of the screwdriver rod 1, thereby adjusting the length of the screwdriver to adapt to different usage requirements and improving the adaptability of the screwdriver bit.

[0031] Reference Figure 1 and Figure 2 The outside of the spline shaft 5 is fixedly connected with a screwdriver head 3, the outside of the connecting block 6 is slidably connected to the inside of the batch rod 1, and the surfaces of the batch rod 1 and the screwdriver head 3 are provided with a wear-resistant layer.

[0032] Specifically, the spline shaft 5 is fixedly connected to the screwdriver head 3 and the connecting block 6 respectively, so that the screwdriver head 3 can be fixed by snapping, which is convenient for disassembly and replacement. By providing a wear-resistant layer on the surface, the wear resistance of the screwdriver is enhanced, thereby extending the service life.

[0033] Working principle: When the cutter head of the screwdriver is damaged, you can first pull the pull rod 18 so that the pull rod 18 drives the slider 17 to slide inside the fixed block 15, thereby compressing the spring 2 16, and the slider 17 drives the insertion rod 19 to move, thereby disengaging from the slot 20, and releasing the restriction on the push rod 4. At this time, you can press the push rod 4 so that the push rod 4 pushes the moving block 9 to move inside the limiting groove 7, thereby driving the connecting rod 10 connected at both ends to move, and the connecting rod 10 pushes the connecting block 11 to slide, thereby driving the limit block 13 to slide inside the limit groove 12, thereby separating the limit block 13 from the card slot 14, and then you can pull the screwdriver head 3 to remove it from the batch rod 1, and connect and fix the screwdriver head 3 by card connection, so that when it is damaged. When the screwdriver head 3 is broken, it is easy to replace it, which realizes quick disassembly and assembly, and extends the service life of the screwdriver. At the same time, the screwdriver heads 3 of different sizes can be replaced according to usage requirements, which improves the flexibility of use. After the screwdriver head 3 is installed, the slider 17 can be pushed to move by the rebound of the spring 2 16, so that the insertion rod 19 is inserted into the interior of the slot 20, thereby realizing the restriction of the pressing rod 4, avoiding accidental pressing during use, which causes the screwdriver head 3 to fall off, thereby ensuring the usage experience. By pressing the rotating rod 23, the spring 3 24 is contracted, and the card block 25 is moved to disengage from the positioning groove 26, so that the card block 25 can be engaged with the positioning grooves 26 at different positions on the surface of the batch rod 1 by pulling the batch rod 1, and the length of the screwdriver can be adjusted to adapt to different usage requirements, thereby improving adaptability.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-head screwdriver, comprising a sleeve rod (21), characterized in that: Both ends of the sleeve rod (21) are slidably connected to the group rod (1), both ends of the group rod (1) are fixedly connected to the spline sleeve (2), the spline sleeve (2) is slidably connected to the spline shaft (5), the adjacent sides of the two spline shafts (5) are fixedly connected to the connecting block (6), both sides of the connecting block (6) are provided with a card slot (14), both ends of the group rod (1) are provided with a limiting groove (7), the limiting groove (7) is fixedly connected to the spring (8), and one end of the spring (8) is fixedly connected to the spline sleeve (2). A moving block (9) is connected, and both sides of the moving block (9) are rotatably connected to connecting rods (10), and the other end of the connecting rod (10) is rotatably connected to a connecting block (11), and the bottom of the connecting block (11) is fixedly connected to a limiting block (13), and the outside of the moving block (9) is fixedly connected to a pressing rod (4), and both ends of the screwdriver rod (1) are provided with locking components, and the locking components are used to limit the movement of the pressing rod (4), and the top of the sleeve rod (21) is provided with an adjusting component, and the adjusting component is used to adjust the length of the screwdriver.

2. A double-headed screwdriver according to claim 1, characterized in that: The locking assembly comprises a fixed block (15), wherein the fixed block (15) is fixedly connected to one end of the batch rod (1) near the push rod (4), a second spring (16) is fixedly connected inside the fixed block (15), the other end of the second spring (16) is fixedly connected to a slider (17), one side of the slider (17) is fixedly connected to a pull rod (18), the other side of the slider (17) is fixedly connected to an insertion rod (19), and a slot (20) is provided on the side of the push rod (4) near the fixed block (15).

3. The double-head screwdriver according to claim 1, characterized in that: The interior of the batch rod (1) is provided with a limiting groove (12) at the bottom of the limiting groove (7), the limiting block (13) is slidably connected to the interior of the limiting groove (12), and the exterior of the limiting block (13) is engaged with the interior of the adjacent side slot (14).

4. The double-head screwdriver according to claim 1, characterized in that: The adjustment assembly includes a support block (22), the support block (22) is fixedly connected to one end of the top of the sleeve rod (21), the top of the support block (22) is rotatably connected to a rotating rod (23), one end of the rotating rod (23) is fixedly connected to a spring three (24), the other end of the spring three (24) is fixedly connected to the top of the sleeve rod (21), the other end of the rotating rod (23) is fixedly connected to a clamping block (25), a plurality of positioning grooves (26) are evenly opened on the surface of the batch rod (1), and the clamping block (25) is plugged into the positioning groove (26).

5. The double-head screwdriver according to claim 1, characterized in that: One end of the push rod (4) extends to the outside of the batch rod (1), and the connecting block (11) is slidably connected to the inside of the limiting groove (7).

6. The double-head screwdriver according to claim 2, characterized in that: The slider (17) is slidably connected to the interior of the fixed block (15), and the second spring (16) is sleeved on the outside of the pull rod (18).

7. The double-head screwdriver according to claim 2, characterized in that: The outside of the insertion rod (19) is slidably connected to the inside of the adjacent slot (20).

8. The double-head screwdriver according to claim 1, characterized in that: The outside of the spline shaft (5) is fixedly connected to a screwdriver head (3), the outside of the connecting block (6) is slidably connected to the inside of the screwdriver rod (1), and the surfaces of the screwdriver rod (1) and the screwdriver head (3) are both provided with a wear-resistant layer.

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