Manual screwing tool

Abstract

The utility model relates to the technical field of screwing tools, and discloses a manual screwing tool which comprises a handheld part, an adjusting shell, a machine core and an elastic piece, the adjusting shell is in threaded connection with the handheld part, one end of the machine core is arranged on the handheld part, the other end of the machine core penetrates through the adjusting shell, and a tool bit bayonet is formed in the end, away from the handheld part, of the machine core; one end of the elastic piece is connected with the movement, the other end of the elastic piece is connected with the adjusting shell, the elastic force of the elastic piece is used for resisting the rotation torque of the movement, and when the adjusting shell and the handheld part rotate relatively, the elastic force is increased or decreased; when the torque of the movement rotating relative to the handheld part needs to be adjusted, the adjusting shell and the handheld part rotate relative to each other, the elastic piece is compressed or stretched, and the limiting force applied to the movement by the elastic piece is adjusted, so that the force for resisting the torque is reduced, the adjustment of the torque is completed, and the device is higher in adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of screwing tools, in particular to a manual screwing tool. Background Art

[0002] Hand tools, as opposed to power tools, are mainly used to twist or apply force to the tools by hand.

[0003] Among them, the manual screwing tool is mainly used for screwing bolts. A manual screwing tool in the prior art has a screwing head that is in direct contact with the cutter head (before screwing the bolt, it is necessary to select a corresponding cutter head to be installed on the screwing head, and screw the bolt through the cutter head) and a hand-held part that is limited by the elastic force of a spring. When the cutter head is tightened, the tightening head and the hand-held part rotate relative to each other, and a sound is made to prompt that the cutter head has been tightened. However, there is a problem that the torque of the relative rotation between the screwing head and the hand-held part cannot be quickly and adaptively adjusted, resulting in the inability to adapt to the screwing of bolts with different torques.

[0004] In view of this, a manual screwing tool is urgently needed. Summary of the invention

[0005] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

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

[0007] A manual screwing tool, comprising: a handheld part, an adjusting shell, a movement and an elastic member, wherein the adjusting shell is threadedly connected to the handheld part, one end of the movement is arranged on the handheld part, and the other end passes through the adjusting shell, and a tool head bayonet is provided at one end of the movement away from the handheld part;

[0008] One end of the elastic member is connected to the movement, and the other end is connected to the adjustment shell. The elastic force of the elastic member is used to resist the torque of the movement rotation. When the adjustment shell and the handheld part rotate relative to each other, the elastic force increases or decreases.

[0009] Its further characteristic is that

[0010] An annular adjustment plate is arranged in the adjustment housing, and the annular adjustment plate is sleeved on the movement ring side. A receiving member is arranged on the movement, and one end of the elastic member is connected to the annular adjustment plate, and the other end is connected to the receiving member.

[0011] A carrier is arranged in the hand-held part, and the carrier is arranged on a side of the receiving part away from the screwing head, and the receiving part and the carrier are in rolling connection.

[0012] A plurality of ball grooves are arranged on one side of the receiving member close to the carrier, and balls are arranged in each of the plurality of ball grooves.

[0013] A plurality of protrusions are arranged on one side of the carrier close to the receiving member, and the plurality of protrusions are all arranged on the rolling paths of the plurality of balls.

[0014] The elastic member is a spring, and the spring is sleeved on the side of the movement ring.

[0015] The outer side of the adjusting shell is provided with anti-skid patterns.

[0016] The outer side of the hand-held part is covered with an anti-slip cover.

[0017] A convenient installation hole is provided at one end of the hand-held part away from the adjustment shell.

[0018] A sleeve ring is slidably arranged on the regulating shell, and the sleeve ring is sleeved on the suspension end of the movement.

[0019] The above structure of the utility model can achieve the following beneficial effects:

[0020] When in use, the cutter head bayonet is inserted into the cutter head, and the handheld part is held and rotated to rotate the cutter head. When the bolt is tightened, the handheld part continues to be rotated. When the torque is greater than the limiting force of the elastic part on the movement, the movement and the handheld part rotate relative to each other. When it is necessary to adjust the torque of the movement relative to the handheld part, the adjustment shell and the handheld part are rotated relative to each other to compress or stretch the elastic part, and adjust the limiting force applied by the elastic part on the movement, thereby reducing the force against the torque, completing the torque adjustment, and making the device more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of this embodiment;

[0022] Figure 2 is a structural cross-sectional view of this embodiment;

[0023] Figure 3 Schematic diagram of the structure of part of the present embodiment.

[0024] In the figure: 1, adjusting housing; 11, ring sleeve; 2, movement; 21, cutter head bayonet; 3, elastic member; 4, annular adjustment plate; 5, receiving member; 6, carrier; 61, raised portion; 7, ball bearing; 8, anti-slip sleeve; 9, convenient installation hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0026] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] refer to Figure 1 and Figure 2 The manual screwing tool shown in the figure comprises: a hand-held part, an adjusting shell 1, a movement 2 and an elastic member 3. The adjusting shell 1 is threadedly connected to the hand-held part. One end of the movement 2 is arranged on the hand-held part, and the other end passes through the adjusting shell 1. A tool head bayonet 21 is provided at the end of the movement 2 away from the hand-held part. One end of the elastic member 3 is connected to the movement 2, and the other end is connected to the adjusting shell 1. The elastic force of the elastic member 3 is used to resist the torque of the movement 2 when the adjusting shell 1 and the hand-held part rotate relative to each other. In this way, when in use, The cutter head bayonet 21 is inserted into the cutter head, and the handheld part is held and rotated to rotate the cutter head. When the bolt at the bottom of the cutter head is tightened, the handheld part continues to be rotated. When the torque is greater than the limiting force of the elastic part 3 on the movement 2, the movement 2 and the handheld part rotate relative to each other. When it is necessary to adjust the torque of the movement 2 relative to the handheld part, the adjustment shell 1 and the handheld part are rotated relative to each other to compress or stretch the elastic part 3, and adjust the limiting force applied by the elastic part 3 on the movement 2, thereby reducing the force against the torque, completing the torque adjustment, and making the device more adaptable.

[0029] refer to Figure 1-Figure 3As shown, an annular adjustment plate 4 is arranged in the adjustment housing 1, and the annular adjustment plate 4 is sleeved on the ring side of the movement 2. A receiving member 5 is arranged on the movement 2, and one end of the elastic member 3 is connected to the annular adjustment plate 4, and the other end is connected to the receiving member 5. A carrier 6 is arranged in the handheld part, and the carrier 6 is arranged on the side of the receiving member 5 away from the screwing head, and the receiving member 5 and the carrier 6 are rollingly connected. A plurality of ball grooves are provided on one side of the receiving member 5 close to the carrier 6, and balls 7 are provided in each of the plurality of ball grooves. A plurality of protrusions 61 are provided on one side of the carrier 6 close to the receiving member 5, and the plurality of protrusions 61 are provided on the rolling paths of the plurality of balls 7. In this way, the elastic member 3 is installed by replacing the adjusting sheet 4 and the receiving member 5, and balls 7 are provided on one side of the receiving member 5 close to the carrier 6. When the cutter head is tightened and the movement 2 rotates relative to the hand-held part, the receiving member 5 rotates relative to the carrier 6, and the balls 7 rotate on the carrier 6. When the balls 7 climb over the protrusions 61, a sound is emitted, indicating that relative rotation occurs between the movement 2 and the hand-held part, and the bolts have been tightened.

[0030] Further optimization is to refer to Figure 2 As shown, the elastic member 3 is a spring, and the spring is sleeved on the ring side of the movement 2. The spring 3 is easier to install in this use environment.

[0031] Further optimization is to refer to Figure 1 and Figure 2 As shown, in order to facilitate the user to adjust the torque, the outer side of the adjustment shell 1 is provided with anti-skid patterns, and the outer side of the handheld part is provided with an anti-skid cover 8 to prevent the user from slipping when using it.

[0032] Further optimization is to refer to Figure 2 As shown, a convenient mounting hole 9 is provided at one end of the hand-held portion away from the adjustment housing 1. Thus, when the torque required to twist the cutter head is large enough, a lever arm can be provided at the convenient mounting hole 9 to make the cutter head more convenient to rotate.

[0033] Further optimization is to refer to Figure 1 and Figure 2As shown, a sleeve ring 11 is slidably provided on the adjustment housing 1, and the sleeve ring 11 is sleeved on the suspension end of the movement 2. An annular groove 14 is provided on the inner side of the sleeve ring 11, and a reset spring 13 is provided between the sleeve ring 11 and the annular adjustment plate 4. Steel balls 12 are provided on both sides of the cutter head bayonet 21 of the movement 2, and the steel balls 12 penetrate the ring side of the cutter head bayonet 21. When in use, the sleeve ring 11 is moved so that the steel balls 12 are at the position of the ring side 14, and then the cutter head is put into the cutter head bayonet 21, so that the steel balls 12 are in the limiting groove on the ring side of the cutter head, and then the sleeve ring 11 is released, and the reset spring 13 resets the sleeve ring 11, so that the annular groove 14 leaves the position of the steel balls 12, and the sleeve ring 11 contacts the steel balls 12, so that the steel balls 12 contact the limiting groove on the ring side of the cutter head, and the installation of the cutter head is completed. In addition, after the cutter head is installed in the cutter head bayonet 21, the cutter head will not rotate relative to the movement 2.

[0034] In summary, when in use, the cutter head bayonet 21 is inserted into the cutter head, the handheld part is held and rotated to rotate the cutter head. When the bolt at the bottom of the cutter head is tightened, the handheld part continues to be rotated. When the torque is greater than the limiting force of the elastic part 3 on the movement 2, the movement 2 and the handheld part rotate relative to each other. When it is necessary to adjust the torque of the movement 2 relative to the handheld part, the adjustment shell 1 and the handheld part are rotated relative to each other to compress or stretch the elastic part 3, and adjust the limiting force applied by the elastic part 3 on the movement 2, thereby reducing the force against the torque, completing the torque adjustment, and making the device more adaptable.

[0035] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A manual screwing tool, characterized in that: include: A handheld portion, an adjustment housing (1), a movement (2) and an elastic member (3), wherein the adjustment housing (1) is threadedly connected to the handheld portion, one end of the movement (2) is arranged on the handheld portion, and the other end passes through the adjustment housing (1), and a blade bayonet (21) is provided at one end of the movement (2) away from the handheld portion; One end of the elastic member (3) is connected to the movement (2), and the other end is connected to the adjustment housing (1). The elastic force of the elastic member (3) is used to resist the torque of the movement (2) when it rotates. When the adjustment housing (1) and the handheld part rotate relative to each other, the elastic force increases or decreases.

2. A manual screwing tool according to claim 1, characterized in that: An annular adjustment plate (4) is arranged inside the adjustment housing (1), and the annular adjustment plate (4) is sleeved on the ring side of the movement (2). A receiving member (5) is arranged on the movement (2), and one end of the elastic member (3) is connected to the annular adjustment plate (4), and the other end is connected to the receiving member (5).

3. A manual screwing tool according to claim 2, characterized in that: A carrier (6) is arranged in the handheld part, and the carrier (6) is arranged on a side of the receiving part (5) away from the screwing head, and the receiving part (5) and the carrier (6) are in rolling connection.

4. A manual screwing tool according to claim 3, characterized in that: A plurality of ball grooves are arranged on one side of the receiving member (5) close to the carrier (6), and balls (7) are arranged in each of the plurality of ball grooves.

5. A manual screwing tool according to claim 4, characterized in that: A plurality of protrusions (61) are arranged on one side of the carrier (6) close to the receiving member (5), and the plurality of protrusions (61) are all arranged on the rolling paths of the plurality of balls (7).

6. A manual screwing tool according to claim 1, characterized in that: The elastic member (3) is a spring, and the spring is sleeved on the ring side of the movement (2).

7. A manual screwing tool according to claim 1, characterized in that: The outer side of the adjustment housing (1) is provided with anti-slip patterns.

8. A manual screwing tool according to claim 1, characterized in that: The outer side of the hand-held part is provided with an anti-slip cover (8).

9. A manual screwing tool according to claim 1, characterized in that: A convenient mounting hole (9) is provided at one end of the hand-held portion away from the adjustment housing (1).

10. A manual screwing tool according to claim 1, characterized in that: A sleeve ring (11) is slidably arranged on the regulating housing (1), and the sleeve ring (11) is sleeved on the suspended end of the movement (2).

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