A self-tapping screw positioner

Abstract

This utility model discloses a self-tapping screw positioner, including a connecting ring cylinder for connecting a pistol drill. A connecting rod is fixedly installed on the outer surface of the connecting ring cylinder, and a positioning tube is rotatably installed at the middle end of the connecting rod. An adjustment component is provided on the positioning tube to adapt to self-tapping screws of different diameters. A fixing component is provided at the end of the connecting ring cylinder for limiting the connection between the connecting ring cylinder and the pistol drill. The rigid connection with the pistol drill is achieved through the cooperation of the connecting ring cylinder, the clamping ring, and the locking sleeve, avoiding relative displacement between the two during operation and providing a stable foundation for screw installation. At the same time, the limiting channel formed by the positioning tube and the adjustment component effectively constrains the screw rod, effectively preventing the screw from tilting due to centrifugal force or hand shaking in the initial stage of screwing, ensuring the verticality of the screw installation and significantly improving the installation quality.

Description

Technical Field

[0001] This utility model relates to the field of screw positioner technology, specifically a self-tapping screw positioner. Background Technology

[0002] In current screw installation work, especially the assembly of self-tapping screws, operators generally rely on power tools such as hand drills. The drill rod of these tools is often made of magnet material, which uses magnetic force to attract self-tapping screws, so that the screws can be rotated and screwed in by hand.

[0003] However, this traditional installation method has significant technical defects: due to the lack of a dedicated limiting structure, self-tapping screws are prone to tilting during high-speed rotation. In the initial contact with the mounting surface or during the screwing process, factors such as slight hand shaking, unstable magnetic attraction, or uneven material of the mounting surface may cause the screw axis to deviate from the preset installation direction. This tilting not only damages the screw threads and deforms the mounting hole, but also makes it difficult to screw the screw in smoothly, and may even require re-drilling, seriously affecting installation efficiency and connection strength.

[0004] Therefore, this utility model provides a self-tapping screw positioner to solve the above problems. Utility Model Content

[0005] This utility model provides a self-tapping screw positioner, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-tapping screw positioner, comprising a connecting ring cylinder for connecting a pistol drill, a connecting rod fixedly mounted on the outer surface of the connecting ring cylinder, and a positioning tube rotatably mounted on the middle end of the connecting rod, an adjusting component provided on the positioning tube for adapting to self-tapping screws of different diameters, and a fixing component provided at the end of the connecting ring cylinder for limiting the connection between the connecting ring cylinder and the pistol drill.

[0007] As a preferred technical solution of this application, the adjustment assembly includes a first adjustment tube that is threadedly connected to the inner wall of the positioning tube, and a second adjustment tube that is threadedly connected to the end of the first adjustment tube away from the positioning tube. The inner cavities of the first adjustment tube and the second adjustment tube together form a channel for accommodating and limiting the self-tapping screw.

[0008] As a preferred technical solution of this application, a second limiting ring is fixedly installed on the outer surface of both the first regulating tube and the second regulating tube.

[0009] As a preferred technical solution of this application, the fixing component includes a clamping ring fixedly installed at one end of the connecting ring cylinder, and a locking sleeve is threadedly connected to the outer surface of the clamping ring.

[0010] As a preferred technical solution of this application, the outer surface of the clamping ring is provided with multiple sets of vertical through grooves. The multiple sets of vertical through grooves are evenly distributed along the circumference of the clamping ring, and the length direction of the vertical through grooves is consistent with the axial direction of the clamping ring. The multiple sets of vertical through grooves are used to make the clamping ring undergo radial contraction deformation when it is squeezed.

[0011] As a preferred technical solution of this application, the locking sleeve is conical in shape, and the inner diameter of the conical inner wall gradually decreases along the direction close to the connecting ring cylinder, so as to squeeze the clamping ring to deform during the tightening process of the locking sleeve.

[0012] As a preferred technical solution of this application, a first limiting ring is fixedly installed at both the front and rear ends of the positioning tube, and the first limiting ring is made of magnetic material.

[0013] The rigid connection with the hand drill is achieved through the cooperation of the connecting ring cylinder, clamping ring and locking sleeve, which avoids the relative displacement between the two during operation and provides a stable foundation for screw installation. At the same time, the limiting channel formed by the positioning tube and the adjustment component effectively constrains the screw shaft, which can effectively prevent the screw from tilting due to centrifugal force or hand shaking in the initial stage of screwing, ensuring the verticality of the screw installation and significantly improving the installation quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the first explosive structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the second explosive structure of this utility model;

[0017] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 for Figure 3 Enlarged structural diagram at point B.

[0019] In the figure: 1. Locking sleeve; 2. Connecting ring cylinder; 3. Connecting rod; 4. Positioning tube; 41. First limiting ring; 5. Clamping ring; 51. Vertical through groove; 6. First adjusting tube; 7. Second adjusting tube; 8. Second limiting ring. Detailed Implementation

[0020] 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.

[0021] This utility model provides a self-tapping screw positioner, such as Figures 1-5 As shown, it includes a connecting ring cylinder 2, which is used to connect the pistol drill. As the basic component for connecting with the pistol drill, the connecting ring cylinder 2 provides a stable mounting carrier for the entire positioner, so that the positioner can form a whole with the pistol drill and avoid the positioner from separating from the pistol drill during operation. A connecting rod 3 is fixedly installed on the outer surface of the connecting ring cylinder 2, and a positioning tube 4 is rotatably installed at the middle end of the connecting rod 3. An adjustment component is provided on the positioning tube 4 to adapt to self-tapping screws of different diameters. A fixing component is provided at the end of the connecting ring cylinder 2 for limiting the connection between the connecting ring cylinder 2 and the pistol drill.

[0022] The adjustment assembly includes a first adjustment tube 6 that is threadedly connected to the inner wall of the positioning tube 4, and a second adjustment tube 7 that is threadedly connected to the end of the first adjustment tube 6 away from the positioning tube 4. The inner cavities of the first adjustment tube 6 and the second adjustment tube 7 together form a channel for accommodating and limiting the self-tapping screw. The first adjustment tube 6 and the second adjustment tube 7 can be disassembled by threads to adapt to different screws, thereby improving their compatibility.

[0023] The outer surfaces of the first adjusting tube 6 and the second adjusting tube 7 are both fixedly equipped with a second limiting ring 8. The second limiting ring 8 can limit the adjustment range of the first adjusting tube 6 and the second adjusting tube 7, and prevent the first adjusting tube 6 from falling out of the positioning tube 4 or the second adjusting tube 7 from falling out of the first adjusting tube 6 due to excessive rotation during the adjustment process.

[0024] The fixing component includes a clamping ring 5 fixedly installed at one end of the connecting ring cylinder 2, and a locking sleeve 1 is threadedly connected to the outer surface of the clamping ring 5. The threaded connection between the clamping ring 5 and the locking sleeve 1 makes the fit between the two tight and adjustable. By rotating the locking sleeve 1, the clamping degree of the clamping ring 5 can be easily controlled to ensure that it holds the drill.

[0025] The clamping ring 5 has multiple sets of vertical through grooves 51 on its outer surface. These vertical through grooves 51 are evenly distributed along the circumference of the clamping ring 5, and the length direction of the vertical through grooves 51 is consistent with the axial direction of the clamping ring 5. The multiple sets of vertical through grooves 51 are used to make the clamping ring 5 undergo radial contraction deformation when it is squeezed. When the clamping ring 5 is squeezed by the locking sleeve 1, it can contract radially, thereby tightly fitting the outer surface of the hand drill.

[0026] The locking sleeve 1 is conical in shape, and the diameter of the inner wall of the cone gradually decreases along the direction close to the connecting ring cylinder 2. This is used to compress the clamping ring 5 to deform during the tightening process of the locking sleeve 1. The gradual compression force makes the clamping ring 5 clamp the drill more evenly and firmly.

[0027] The positioning tube 4 has a first limiting ring 41 fixedly installed at both the front and rear ends. The first limiting ring 41 is made of magnetic material and can be attracted to both ends of the connecting rod 3, thus facilitating the initial connection.

[0028] Working principle: Before installing the self-tapping screws, first put the connecting ring 2 into the corresponding part of the pistol drill, ensuring that the drill rod of the pistol drill passes through the inner cavity of the connecting ring 2 and the positioning tube 4 in sequence, so that the magnetic attraction at the end of the drill rod is exposed at one end of the positioning tube 4.

[0029] After the initial assembly is completed, the device is firmly connected to the hand drill by rotating the locking sleeve 1: Since the inner wall of the locking sleeve 1 is conical and threaded with the clamping ring 5, during the tightening process, the conical surface of the locking sleeve 1 will generate radial extrusion force on the clamping ring 5. At this time, the multiple sets of vertical through grooves 51 on the outer surface of the clamping ring 5 provide deformation space for it, causing the clamping ring 5 to radially contract, tightly fit and clamp on the outer surface of the hand drill, thereby forming a rigid connection between the entire locator and the hand drill, avoiding relative displacement during operation;

[0030] For self-tapping screws of different diameters, they can be adapted by adjusting the components. By rotating the first adjusting tube 6 or rotating the second adjusting tube 7, the first adjusting tube 6 or the second adjusting tube 7 can be adapted to screws of different sizes.

[0031] During operation, the head of the self-tapping screw is attached to the magnetic end of the drill rod of the hand drill, and the screw rod is inserted into the limiting channel formed by the positioning tube 4, the first adjusting tube 6 and the second adjusting tube 7. After the hand drill is started, the screw rotates at high speed under the drive of the drill rod. At this time, the positioning tube 4 applies radial constraint to the screw rod through the channel formed by its inner cavity and the adjusting component, which effectively prevents the screw from tilting due to centrifugal force or hand shaking in the early stage of screwing.

[0032] As the screw is gradually screwed into the mounting surface, when the operator presses down on the hand drill, the positioning tube 4 will slide along the rotation fulcrum of the connecting rod 3 towards the connecting ring cylinder 2 due to the reaction force from the mounting surface, until the first limiting ring 41 of the positioning tube 4 abuts against the other side of the connecting rod 3, no longer interfering with the final screw-in process, ensuring that the screw can be fully tightened to the preset depth. The entire process combines mechanical limiting and magnetic assistance, taking into account both positioning accuracy and operational flexibility, adapting to the efficient installation needs of various sizes of self-tapping screws.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-tapping screw positioner, characterized in that: Includes a connecting ring cylinder (2), which is used to connect a pistol drill. A connecting rod (3) is fixedly installed on the outer surface of the connecting ring cylinder (2), and a positioning tube (4) is rotatably installed at the middle end of the connecting rod (3). The positioning tube (4) is provided with an adjustment component for adapting to self-tapping screws of different diameters; The end of the connecting ring cylinder (2) is provided with a fixing component for connecting the connecting ring cylinder (2) and the pistol drill limiting connection.

2. A self-tapping screw positioner according to claim 1, wherein: The adjustment assembly includes a first adjustment tube (6) that is threaded to the inner wall of the positioning tube (4), and a second adjustment tube (7) that is threaded to the end of the first adjustment tube (6) away from the positioning tube (4). The inner cavities of the first adjustment tube (6) and the second adjustment tube (7) together form a channel for accommodating and limiting the self-tapping screw.

3. A self-tapping screw positioner according to claim 2, characterized in that: The outer surfaces of the first regulating tube (6) and the second regulating tube (7) are both fixedly installed with a second limiting ring (8).

4. A self-tapping screw positioner according to claim 1, characterized in that: The fixing component includes a clamping ring (5) fixedly installed at one end of the connecting ring cylinder (2), and a locking sleeve (1) is threadedly connected to the outer surface of the clamping ring (5).

5. A self-tapping screw positioner according to claim 4, characterized in that: The outer surface of the clamping ring (5) has multiple sets of vertical through grooves (51). The multiple sets of vertical through grooves (51) are evenly distributed along the circumference of the clamping ring (5), and the length direction of the vertical through grooves (51) is consistent with the axial direction of the clamping ring (5). The multiple sets of vertical through grooves (51) are used to make the clamping ring (5) undergo radial shrinkage deformation when it is squeezed.

6. A self-tapping screw positioner according to claim 4, characterized in that: The locking sleeve (1) is conical in shape, and the diameter of the inner wall of the cone gradually decreases along the direction close to the connecting ring cylinder (2), which is used to squeeze the clamping ring (5) to deform during the tightening process of the locking sleeve (1).

7. A self-tapping screw positioner according to claim 1, characterized in that: The positioning tube (4) is fixedly installed with a first limiting ring (41) at both the front and rear ends, and the first limiting ring (41) is made of magnet material.

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