Knock rotary screwdriver
By using a hammer-driven rotating screwdriver design, the hammer force drives the screwdriver handle to rotate, solving the difficulty of screw rotation in confined spaces and achieving efficient screw tightening or loosening.
Patent Information
- Application Number
- CN202522208057.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-18
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-18
AI Technical Summary
Traditional screwdrivers are difficult to operate in confined spaces, affecting work efficiency and accuracy.
Design a striking rotary screwdriver that uses the striking force of the handle or the screwdriver head to compress an elastic element, causing a guide element to slide within a spiral track, thereby driving the screwdriver bar to rotate clockwise or counterclockwise to tighten or loosen screws.
Efficiently tighten or loosen screws in confined spaces, improving operational efficiency and accuracy.
Smart Images

Figure CN224939920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screwdriver technology, and in particular to a tapping and rotating screwdriver. Background Technology
[0002] In many applications, such as electronic equipment repair, furniture assembly, and automotive repair, it is often necessary to tighten or loosen screws in confined spaces that are difficult to access. However, the design of traditional screwdrivers makes it difficult for users to hold and rotate them in such confined spaces, making it very difficult to tighten or loosen screws in these special environments, thus affecting work efficiency and accuracy. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the difficulties and limitations of existing screwdrivers when rotating in a confined space, and to provide a hammer-rotating screwdriver.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution: A tapping and rotating screwdriver, comprising: The handle has an internal installation space and a rotating channel that extend along a first direction and are interconnected. A blade cap is fixedly installed in the installation space. The blade cap has a receiving groove with the opening facing the rotating channel. The blade cap has a spiral slide from the opening of the receiving groove. An elastic element is installed in the receiving groove; A tool holder is rotatably mounted in the rotating channel. One end of the tool holder is provided with a screwdriver head, and the other end extends into the receiving groove and is connected to the elastic element. A guide member is disposed on the tool holder and slidably disposed within the helical slideway; When a force is applied to the handle or the blade cap in the first direction, the elastic element is compressed, the handle and the blade cap move along the first direction, and the guide slides spirally in the spiral slide, thereby driving the blade bar to rotate clockwise or counterclockwise in the rotation channel, which can tighten or loosen screws.
[0005] Preferably, the installation space, the rotating channel, and the receiving groove are all cylindrical spaces, and their axes coincide.
[0006] Preferably, the diameter of the installation space is greater than the diameter of the receiving groove, and the diameter of the receiving groove is greater than or equal to the diameter of the rotating channel.
[0007] Preferably, the length of the receiving groove in the first direction is the same as the length of the installation space in the first direction.
[0008] Preferably, the installation space has an opening at one end in the direction opposite to the first direction to allow the installation space to communicate with the outside. The installation space has an internal thread, and the blade cap has an external thread. The blade cap is threadedly connected to the installation space.
[0009] Preferably, the blade cap is made of a hard metal material, and the blade cap protrudes from the mounting space and extends beyond the handle.
[0010] Preferably, there are two spiral slides, which are symmetrically arranged along the axis of the receiving groove; The guide members are two in number and are symmetrically arranged along the axis of the tool holder, and are slidably disposed in the two spiral slideways respectively.
[0011] Preferably, the entrance of the spiral slide is chamfered.
[0012] Preferably, the spiral slide rotates counterclockwise or clockwise.
[0013] Preferably, the elastic element is a spring.
[0014] Preferably, the end of the tool holder opposite to the receiving groove is provided with a mounting position, and the screwdriver head is detachably mounted in the mounting position.
[0015] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0016] The positive and progressive effects of this utility model are as follows: This utility model discloses a striking and rotating screwdriver, characterized in that it includes a handle, a blade cap, an elastic element, a blade shank, and a guide element. When a force (e.g., striking) is applied to the handle or blade cap in a first direction, the elastic element is compressed, and the handle and blade cap move along the first direction. The guide element slides spirally within a spiral track, thereby driving the blade shank to rotate clockwise or counterclockwise within a rotation channel, thus tightening or loosening screws. Specifically, when the spiral track rotates counterclockwise, the blade shank also rotates counterclockwise, thereby loosening screws; when the spiral track rotates clockwise, the blade shank also rotates clockwise, thereby tightening screws. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of a preferred embodiment of the present invention, showing a rotary screwdriver.
[0018] Figure 2This is a structural diagram of the knife cap of a preferred embodiment of the present invention. Detailed Implementation
[0019] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0021] like Figure 1 and Figure 2 As shown in the figure, this embodiment discloses a tapping rotary screwdriver, which includes a handle 1, a screw cap 2, an elastic element 4, a screw shaft (not shown in the figure) and a guide element 5.
[0022] The handle 1 is made of plastic and has an anti-slip bushing on the outside. Inside, there is an installation space 11 and a rotation channel 12 that extend along the first direction (X direction shown in the figure) and are interconnected.
[0023] The blade cap 2 is fixedly installed in the installation space 11. The blade cap 2 has a receiving groove 21, the opening of which faces the rotating channel 12. A spiral slide 3 is formed on the side wall of the blade cap 2 from the opening of the receiving groove 21. The rotation direction of the spiral slide 3 can be clockwise or counterclockwise. Figure 1 and Figure 2 The image shows a counter-clockwise rotating spiral slide 3.
[0024] The elastic element 4 is installed in the receiving groove 21. In this embodiment, the elastic element 4 is a spring, but it is not limited to this.
[0025] The screwdriver shank is rotatably mounted within the rotating channel 12. One end of the shank is equipped with a screwdriver head for tightening or loosening screws, and the other end extends into the receiving groove 21 and is connected to the elastic element 4. Furthermore, the end of the shank facing away from the receiving groove 21 is provided with a mounting position, where the screwdriver head is detachably mounted, thereby allowing for the replacement of different types of screwdriver heads as needed to tighten or loosen different screws.
[0026] The guide member 5 is a rod-shaped structure, which is set on the tool holder and slidably disposed in the helical slide 3.
[0027] When a force (e.g., a tap) is applied to the handle 1 or the blade cap 2 in a first direction, the elastic element 4 is compressed, causing the handle 1 and the blade cap 2 to move in the first direction. The guide element 5 slides spirally within the spiral slide rail 3, thereby causing the blade to rotate clockwise or counterclockwise within the rotation channel 12. This allows for tightening or loosening of screws. Specifically, when the spiral slide rail 3 rotates counterclockwise, the blade also rotates counterclockwise, allowing for screw loosening; when the spiral slide rail 3 rotates clockwise, the blade also rotates clockwise, allowing for screw tightening. After the force is removed, the elastic element 4 elastically resets, causing the handle 1 and the blade cap 2 to move back to their original positions in the opposite direction, allowing for the next tapping.
[0028] In this embodiment, the installation space 11, the rotating channel 12, and the receiving groove 21 are all cylindrical spaces, and their axes coincide, which facilitates the alignment and assembly of the tool holder and the tool cap 2, and ensures that the tool holder can rotate smoothly.
[0029] Furthermore, in this embodiment, the diameter of the mounting space 11 is greater than the diameter of the rotating channel 12, and the diameter of the receiving groove 21 is greater than or equal to the diameter of the rotating channel 12.
[0030] Furthermore, the length of the receiving groove 21 in the first direction is the same as the length of the mounting space 11 in the first direction. That is, the side wall of the knife cap 2 is the same as the length of the mounting space 11. Since the diameter of the mounting space 11 is greater than the diameter of the rotating channel 12, the diameter of the receiving groove 21 is greater than or equal to the diameter of the rotating channel 12. This allows the side wall of the knife cap 2 to abut against the step surface where the mounting space 11 switches to the rotating channel 12, thereby limiting the knife cap 2 in the first direction and preventing the knife cap 2 from displacing relative to the handle 1 in the mounting space 11 after being struck.
[0031] In this embodiment, the installation space 11 has an opening at one end in the opposite direction to the first direction so that the installation space 11 can communicate with the outside. The installation space 11 has an internal thread, and the knife cap 2 has an external thread. The knife cap 2 is threadedly connected to the installation space 11. That is, the installation space 11 and the rotating channel 12 form a channel that passes through the handle 1 in the first direction, so that the knife cap 2 and the elastic element 4 can be installed easily.
[0032] In this embodiment, the blade cap 2 is made of hard metal material. The blade cap 2 is exposed in the mounting space 11 and protrudes from the handle 1, so that the blade cap 2 can be directly struck to rotate the blade.
[0033] Of course, in other embodiments, the end of the mounting space 11 opposite to the first direction can also be closed. In this case, the blade cap 2 is set in the mounting space 11 and does not protrude from the handle 1. In this case, the handle 1 needs to be struck to rotate the blade.
[0034] In this example, the blade cap 2 is made of hard metal material. The blade cap 2 protrudes from the mounting space 11 and protrudes from the handle 1. Directly striking the blade cap 2 causes the blade to rotate, which is not only more efficient but also less strenuous.
[0035] Furthermore, in this embodiment, there are two spiral slides 3, which are symmetrically arranged along the axis of the receiving groove 21. Correspondingly, there are two guide members 5, which are symmetrically arranged along the axis of the tool holder and are slidably disposed in the two spiral slides 3. The paired and symmetrically arranged guide members 5 and spiral slides 3 can ensure structural strength and improve service life.
[0036] Furthermore, the entrance of the spiral slide 3 is chamfered to prevent the guide 5 from jamming with the spiral slide 3.
[0037] The tapping and rotating screwdriver of this embodiment can convert the tapping force in the first direction into a rotational force that drives the screwdriver bar to rotate, thereby solving the problem of rotational operation in a confined space. Furthermore, since the tapping force is explosive, it can convert the vertical explosive force into rotational force, making it easier to tighten or loosen screws.
Claims
1. A hammer rotary screwdriver characterized by comprising: include: The handle has an internal installation space and a rotating channel that extend along a first direction and are interconnected. A blade cap is fixedly installed in the installation space. The blade cap has a receiving groove with the opening facing the rotating channel. The blade cap has a spiral slide from the opening of the receiving groove. An elastic element is installed in the receiving groove; A tool holder is rotatably mounted in the rotating channel. One end of the tool holder is provided with a screwdriver head, and the other end extends into the receiving groove and is connected to the elastic element. A guide member is disposed on the tool holder and slidably disposed within the helical slideway; When a force is applied to the handle or the blade cap in the first direction, the elastic element is compressed, the handle and the blade cap move along the first direction, and the guide slides spirally in the spiral slide, thereby driving the blade bar to rotate clockwise or counterclockwise in the rotation channel, which can tighten or loosen screws.
2. The tapping and rotating screwdriver as described in claim 1, characterized in that, The installation space, the rotating channel, and the receiving groove are all cylindrical spaces, and their axes coincide.
3. The impact rotary screwdriver according to claim 2, wherein The diameter of the installation space is greater than the diameter of the receiving groove, and the diameter of the receiving groove is greater than or equal to the diameter of the rotating channel.
4. The tapping and rotating screwdriver as described in claim 3, characterized in that, The length of the receiving groove in the first direction is the same as the length of the installation space in the first direction.
5. The impact rotary screwdriver according to claim 4, wherein The installation space has an opening at one end in the opposite direction to the first direction, so that the installation space can communicate with the outside. The installation space has an internal thread, and the knife cap has an external thread. The knife cap is threadedly connected to the installation space.
6. The tapping and rotating screwdriver as described in claim 5, characterized in that, The blade cap is made of hard metal and protrudes from the mounting space and the handle.
7. The tapping and rotating screwdriver as described in claim 2, characterized in that, The number of spiral slides is two, and they are symmetrically arranged along the axis of the receiving groove; The guide members are two in number and are symmetrically arranged along the axis of the tool holder, and are slidably disposed in the two spiral slideways respectively.
8. The tapping and rotating screwdriver as described in claim 1, characterized in that, The entrance of the spiral slide is chamfered.
9. The tapping and rotating screwdriver as described in claim 1, characterized in that, The spiral slide rotates in either counterclockwise or clockwise.
10. The tapping and rotating screwdriver as described in claim 1, characterized in that, The elastic element is a spring.
11. The tapping and rotating screwdriver as described in claim 1, characterized in that, The end of the tool holder opposite to the receiving groove is provided with a mounting position, and the screwdriver head is detachably mounted on the mounting position.
