Cylindrical screwdriver convenient to assemble

Abstract

The utility model relates to the technical field of screwdrivers, and discloses a cylindrical screwdriver convenient to assemble, which comprises a handle, an elastic ring is fixedly connected inside the left end of the handle, two clamping holes are arranged on the left side of the outside of the handle, an assembling column is slidably connected inside the left side of the handle, and the left end of the assembling column is fixedly connected with the elastic ring. The right end of the assembling column is fixedly connected with a connecting disc, an elastic hole is formed in the outer portion of the connecting disc, the inner wall of the left side of the assembling column is slidably connected with a screwdriver bit, a telescopic assembly is arranged in the assembling column, and the front side and the rear side of the telescopic assembly are both fixedly connected with limiting blocks. Containing holes are formed in the upper side and the lower side of the assembling column correspondingly, and two fixing rod assemblies are fixedly connected into the containing holes. In the utility model, for different bolts, only the bit needs to be replaced, and a plurality of tools do not need to be used for being in one-to-one correspondence with the bolts which need to be dismounted and screwed, so that the purchase cost and the maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, in particular to a convenient and assembled barrel-type screwdriver. Background Art

[0002] A barrel screwdriver is an electric or pneumatic tool used to tighten or loosen screws. It usually consists of an electric or pneumatic drive, a screwdriver head, a handle, and a control switch. The main feature of this tool is that the head is barrel-shaped, so it is called a barrel screwdriver. Barrel screwdrivers are suitable for work situations where screws need to be tightened or loosened frequently, such as assembly lines, maintenance work, etc.

[0003] After searching, the Chinese patent document announcement number is: CN203818058U. This utility model provides a screwdriver, including a handle, a flexible shaft and a bit interface. One end of the flexible shaft is riveted in the handle, and the handle is provided with a groove that matches the flexible shaft. The cross-sections of the groove and the flexible shaft are both square, and a gap is left between the groove and the flexible shaft. The flexible shaft can rotate out of the groove around the riveted point in the handle. The rotation angle of the flexible shaft around the riveted point in the handle is 90 degrees. When the handle and the flexible shaft are at a 90-degree angle, screws with strong tightening force can be easily opened. The normal operation of the screwdriver is less affected by the environment, labor-saving, and easy to use.

[0004] The above patent mentions in the beneficial effects that "in a complex environment, when a conventional screwdriver is difficult to operate due to the limitation of the handle structure, the bit can be sent to the location for operation through the flexible shaft 2. In some conventional environments, the bit can still be directly installed on the bit interface 3 at the front end of the handle 1 for operation. If labor-saving operation is required, the flexible shaft 2 only needs to be rotated 90° around the riveting point, and the handle 1 becomes a power lever. The screwdriver with this structure can be turned by turning the handle 1 with both hands. However, when facing different screws that need to be turned or removed, the corresponding tools need to be replaced for turning. This not only requires additional tool investment, but also increases maintenance costs. For this reason, a barrel-type screwdriver that is easy to assemble is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a barrel-type screwdriver that is easy to assemble, aiming to improve the problem in the prior art that when different bolts need to be screwed and removed, corresponding tools need to be replaced, which requires additional tool investment and increases maintenance costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A barrel-type screwdriver for easy assembly comprises a handle, an elastic ring is fixedly connected to the left end of the handle, two engaging holes are provided on the left side of the outside of the handle, a mounting column is slidably connected to the left side of the handle, a connecting plate is fixedly connected to the right end of the mounting column, an elastic hole is provided on the outside of the connecting plate, a screwdriver head is slidably connected to the left inner wall of the mounting column, a telescopic component is provided inside the mounting column, and limit blocks are fixedly connected to the front and rear sides of the telescopic component, and accommodating holes are provided inside the upper and lower sides of the mounting column, and two fixing rods are fixedly connected inside the accommodating holes, and two strong springs are sleeved on the outside of the fixing rods, and a plurality of the fixing rods are slidably connected to the outside of the sliding blocks, and a connecting rod is rotatably connected to the inside of one side of the sliding block, and two engaging blocks are rotatably connected to the far side of the plurality of connecting rods;

[0008] As a further description of the above technical solution:

[0009] The telescopic assembly includes a strong spring 1, the interior of the assembly column is slidably connected with a sliding plate, and the strong spring 1 is arranged inside the assembly column;

[0010] As a further description of the above technical solution:

[0011] Two limiting grooves are provided inside the assembly column, and the outside of the limiting block is slidably connected to the inside of the limiting grooves;

[0012] As a further description of the above technical solution:

[0013] The outside of the connecting plate is slidably connected to the inside of the left side of the handle, and the outside of the elastic ring is in contact with the outside of the elastic hole;

[0014] As a further description of the above technical solution:

[0015] One end of the second strong spring is fixedly connected to one side of the sliding block, and the other end of the second strong spring is fixedly connected to one side of the interior of the receiving hole;

[0016] As a further description of the above technical solution:

[0017] The outer portion of the sliding block is slidably connected to the inner portion of the accommodating hole, the outer portion of the engaging block is slidably connected to the inner portion of the engaging hole, and the outer portion of the engaging block is slidably connected to an inner wall of one side of the assembly column;

[0018] As a further description of the above technical solution:

[0019] One side of the screwdriver bit is fixedly connected to one side of the sliding plate;

[0020] As a further description of the above technical solution:

[0021] The right side of the handle is fixedly connected with a hanging ring.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the engaging block is pressed to move downward, and then the bit can be pulled out by the slopes provided on the engaging hole and the engaging block, and then the handle and the bit can be disassembled. When facing different bolts, only the bit needs to be replaced, and there is no need to use multiple tools corresponding to the bolts to be removed and tightened one by one, thereby reducing the purchase cost and the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a barrel-type screwdriver that is easy to assemble proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the handle structure of a cartridge screwdriver that is easy to assemble and proposed by the utility model;

[0026] Figure 3 for Figure 2 A in the enlarged view;

[0027] Figure 4 This is a schematic diagram of the assembly column structure of a barrel-type screwdriver that is easy to assemble proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of a limit block of a cartridge screwdriver that is easy to assemble proposed by the utility model;

[0029] Figure 6 A schematic diagram of the structure of a connecting plate of a barrel-type screwdriver that is easy to assemble proposed by the utility model;

[0030] Figure 7 The utility model is a schematic diagram of a tightening hole structure of a barrel-type screwdriver which is easy to assemble.

[0031] Legend:

[0032] 1. Handle; 2. Hanging ring; 3. Elastic ring; 4. Snap-fit ​​hole; 5. Assembly column; 6. Elastic hole; 7. Batch bit; 8. Powerful spring 1; 9. Limiting groove; 10. Sliding plate; 11. Limiting block; 12. Connecting plate; 13. Receiving hole; 14. Fixed rod; 15. Powerful spring 2; 16. Sliding block; 17. Connecting rod; 18. Snap-fit ​​block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1 The utility model provides an embodiment: a barrel-type screwdriver that is easy to assemble, including a handle 1 and a main hand-held part of a screwdriver head 7. The right side of the handle 1 is fixedly connected with a hanging ring 2 for easy hanging or carrying.

[0035] Reference Figure 3 and Figure 4 An elastic ring 3 is fixedly connected to the left end of the handle 1 to provide tightness, two engaging holes 4 are provided on the left side of the outside of the handle 1, and an assembly column 5 is slidably connected to the left side of the handle 1 to support or connect subsequent components.

[0036] Reference Figure 2 and Figure 7 The right end of the assembly column 5 is fixedly connected to a connecting plate 12 to provide additional support. The outside of the connecting plate 12 is slidably connected to the left inner side of the handle 1. A tightening hole 6 is opened on the outside of the connecting plate 12. The outside of the elastic ring 3 contacts the outside of the tightening hole 6 to provide fixation for the assembly column 5. A screwdriver bit 7 is slidably connected to the left inner wall of the assembly column 5.

[0037] Reference Figure 4 - Figure 6A telescopic component is arranged inside the assembly column 5, and the telescopic component includes a strong spring 8 for providing elastic force and resilience. The interior of the assembly column 5 is slidably connected with a sliding plate 10, which can slide inside the assembly column 5, thereby realizing the telescopic movement of the screwdriver 7. One side of the screwdriver 7 is fixedly connected to one side of the sliding plate 10. A strong spring 8 is arranged inside the assembly column 5. Two limit grooves 9 are arranged inside the assembly column 5. The front and rear sides of the telescopic component are fixedly connected to limit blocks 11. The outside of the limit blocks 11 is slidably connected to the inside of the limit grooves 9, which is used to limit the movement range of the telescopic component to ensure that the telescopic movement is smooth and will not fall out. Receiving holes 13 are arranged inside the upper and lower sides of the assembly column 5 to accommodate other components. The inside of the receiving holes 13 is fixedly connected to two fixing rods 14 for providing support. The outside of the fixing rods 14 is sleeved with two strong The force spring 2 15 is used to provide elastic force and restoring force, and the external sliding connection of multiple fixing rods 14 is connected with a sliding block 16 which slides on the fixing rod 14 for squeezing the strong spring 2 15. The external sliding connection of the sliding block 16 is connected to the inside of the accommodating hole 13 for providing stability during movement. One end of the strong spring 2 15 is fixedly connected to one side of the sliding block 16, and the other end of the strong spring 2 15 is fixedly connected to one side of the accommodating hole 13. One side of the sliding block 16 is internally rotatably connected with a connecting rod 17 for providing force transmission. The far side of the multiple connecting rods 17 is rotatably connected with two engaging blocks 18 for fixing the screwdriver bit 7. The external sliding connection of the engaging block 18 is connected to the inside of the engaging hole 4, and the external sliding connection of the engaging block 18 is connected to the inner wall of one side of the assembly column 5 for limiting the engaging block 18 to ensure the stability of the screwdriver bit 7 when it is fixed.

[0038] Working principle: when the bit 7 needs to be replaced, first press the engaging block 18. When the engaging block 18 is pressed, it will slide out from the inside of the engaging hole 4, and then the connecting rod 17 will be subjected to force. Then, under the force of the connecting rod 17, the sliding block 16 will be driven to slide outside the fixed rod 14. In this process, the strong spring 2 15 will be subjected to force. Then, when the engaging block 18 is separated from the engaging hole 4, the assembly column 5 is pulled out from the inside of one side of the handle 1, which will also separate the elastic ring 3 from the elastic hole 6. After the assembly column 5 is pulled out, the bit 7 will be pulled out together, and now it can be realized When the screwdriver bit 7 is removed, the strong spring 2 15 will generate a rebound force after being stressed. This rebound force provides the force for the subsequent engagement block 18 to engage with the engagement hole 4, ensuring the stability of the screwdriver bit 7 during assembly. Then, during installation, the tightening hole 6 will be in contact with the elastic ring 3, and the tightening hole 6 will be tightened by utilizing the tightness of the elastic ring 3 itself, which will provide additional force for assembly stability. Then, when the engagement block 18 is pulled, pressing it to a certain position will make the curvature of the engagement block 18 match the curvature set inside the engagement hole 4, and the screwdriver bit 7 can be smoothly pulled out at this time, and the strong spring 1 8 will make the contact between the screwdriver bit 7 and the bolt tighter.

[0039] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A barrel-type screwdriver for easy assembly, comprising a handle (1), characterized in that: The left end of the handle (1) is fixedly connected to an elastic ring (3), the left side of the handle (1) is provided with two engaging holes (4), the left side of the handle (1) is slidably connected to an assembly column (5), the right end of the assembly column (5) is fixedly connected to a connection plate (12), the outside of the connection plate (12) is provided with an elastic hole (6), the left inner wall of the assembly column (5) is slidably connected to a screwdriver bit (7), the assembly column (5) is provided with a telescopic component, and the front and rear sides of the telescopic component are fixedly connected to the assembly column (5). A limit block (11) is connected, and receiving holes (13) are provided inside the upper and lower sides of the assembly column (5), and two fixing rods (14) are fixedly connected inside the receiving hole (13), and two strong springs (15) are sleeved outside the fixing rod (14), and a plurality of the fixing rods (14) are slidably connected to the outside with a sliding block (16), and a connecting rod (17) is rotatably connected inside one side of the sliding block (16), and two engaging blocks (18) are rotatably connected to the far side of the plurality of connecting rods (17).

2. A cartridge screwdriver for easy assembly according to claim 1, characterized in that: The telescopic assembly comprises a strong spring (8), the interior of the assembly column (5) is slidably connected with a sliding plate (10), and the strong spring (8) is arranged inside the assembly column (5).

3. The cartridge screwdriver for easy assembly according to claim 1, characterized in that: Two limiting grooves (9) are provided inside the assembly column (5), and the outside of the limiting block (11) is slidably connected to the inside of the limiting grooves (9).

4. The cartridge screwdriver for easy assembly according to claim 1, characterized in that: The outside of the connecting plate (12) is slidably connected to the inside of the left side of the handle (1), and the outside of the elastic ring (3) is in contact with the outside of the elastic hole (6).

5. The cartridge screwdriver for easy assembly according to claim 1, characterized in that: One end of the second strong spring (15) is fixedly connected to one side of the sliding block (16), and the other end of the second strong spring (15) is fixedly connected to one side inside the accommodating hole (13).

6. The cartridge screwdriver for easy assembly according to claim 1, characterized in that: The outside of the sliding block (16) is slidably connected to the inside of the accommodating hole (13), the outside of the locking block (18) is slidably connected to the inside of the locking hole (4), and the outside of the locking block (18) is slidably connected to the inner wall of one side of the assembly column (5).

7. The easy-to-assemble barrel-type screwdriver according to claim 2, characterized in that: One side of the screwdriver bit (7) is fixedly connected to one side of the sliding plate (10).

8. The easy-to-assemble barrel-type screwdriver according to claim 1, characterized in that: The right side of the handle (1) is fixedly connected with a hanging ring (2).

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