Magnetic adsorption L needle convenient replacement device

Abstract

This utility model relates to the field of tool auxiliary device technology, specifically to a magnetically adsorbed L-needle convenient replacement device, including a main rod body and a telescopic rod slidably installed inside the main rod body. A mounting sleeve is fixedly connected to one end of the telescopic rod outside the main rod body. An electromagnet is fixedly installed inside the mounting sleeve. A mounting block is threadedly connected to the end of the mounting sleeve away from the main rod body. A magnetic end is fixedly connected to the outer wall of the mounting block. This utility model, through the combined structure of the main rod body, telescopic rod, mounting sleeve, electromagnet, mounting block, and magnetic end, utilizes the electromagnet to generate magnetic attraction for L-needles when energized and release them when de-energized, achieving convenient L-needle replacement. The telescopic rod has an adjustable working distance to adapt to different working scenarios. The overall structure is compact. By combining magnetic adsorption with circuit control, it significantly improves L-needle replacement efficiency and reduces operational difficulty.

Description

Technical Field

[0001] This utility model relates to the field of tool auxiliary device technology, specifically to a magnetic adsorption L-needle convenient replacement device. Background Technology

[0002] L-needles are widely used in many fields such as medical devices, industrial testing, textile embroidery, and experimental scientific research.

[0003] However, existing L-needles require a dedicated replacement device for replacement. These devices are difficult to adjust the working distance flexibly, failing to meet the diverse needs of L-needle position in different work scenarios, resulting in significant limitations. Furthermore, the existing replacement devices lack a direct connection to the L-needle body, such as a magnetic connection, which means there is a risk that the L-needle may detach from the replacement device when it is removed. Therefore, they are inconvenient and risky to use.

[0004] In view of this, we propose a convenient replacement device for L-needles using magnetic adsorption. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a convenient replacement device for L-needles with magnetic adsorption.

[0006] The technical solution of this utility model is:

[0007] A convenient L-needle replacement device with magnetic adsorption includes a main rod and a telescopic rod slidably installed inside the main rod. An installation sleeve is fixedly connected to one end of the telescopic rod outside the main rod. An electromagnet is fixedly installed inside the installation sleeve. An installation block is threadedly connected to the end of the installation sleeve away from the main rod. A magnetic suction end is fixedly connected to the outer wall of the installation block. The magnetic suction end is L-shaped and adapted to the size of the L-needle. A battery compartment is fixedly connected to the bottom of the main rod. A push-button electric switch is installed on the outer wall of the main rod. A battery is installed inside the battery compartment. The battery, push-button electric switch, and electromagnet are connected in series via wires. By setting up a combined structure of the main rod, telescopic rod, installation sleeve, electromagnet, installation block, and magnetic suction end, the electromagnet, when energized, magnetically attracts the L-needle, and when de-energized, releases it, enabling convenient L-needle replacement. The telescopic rod can be adjusted to work at different distances to adapt to different operating scenarios. The push-button electric switch controls the circuit's on / off state, making operation simple. The battery compartment and battery power the electromagnet, giving the device independent operating capability. With its compact overall structure, the combination of magnetic adsorption and circuit control significantly improves the efficiency of L-needle replacement and reduces the difficulty of operation.

[0008] As a preferred technical solution, a pushing block is fixedly connected to the end of the telescopic rod's outer circumference away from the mounting sleeve. A connecting block is integrally formed between the pushing block and the outer wall of the telescopic rod. A strip-shaped opening is provided on the main rod body, which is slidably connected to the connecting block. This allows the user to conveniently control the extension and retraction of the telescopic rod through the pushing block. Compared to directly operating the telescopic rod, it is easier to apply force and control, improving the convenience of telescopic rod adjustment and the feel of operation.

[0009] As a preferred technical solution, the outer surface of the push block is arc-shaped and has several parallel anti-slip textures, and the inner ring wall of the push block is in close contact with the outer ring wall of the main rod. The arc-shaped design conforms to the shape of the fingers, conforms to ergonomics, and provides a comfortable grip when operating the push block; the anti-slip textures increase the friction between the fingers and the push block.

[0010] As a preferred technical solution, one end of the battery compartment is open, and a sealing cap is threaded into the opening. This design facilitates users in opening the sealing cap to replace or maintain the battery. When the battery is depleted, a new battery can be quickly replaced to ensure continuous operation of the device.

[0011] As a preferred technical solution, a drive shaft is rotatably mounted inside the main rod, and a movable slot is provided inside the telescopic rod for the drive shaft to insert into. This allows the drive shaft to drive the telescopic rod to extend and retract, and this structure enables more stable telescopic control.

[0012] As a preferred technical solution, a threaded head is coaxially fixed at one end of the drive shaft mounting sleeve, and a threaded sleeve is fixedly connected inside the telescopic rod at the end furthest from the mounting sleeve. The threaded head is threadedly connected to the threaded sleeve. After the telescopic rod is extended to a certain length, i.e., after the threaded head contacts the threaded sleeve, the extension length of the telescopic rod can be finely adjusted by rotating the drive shaft. This is more precise than manual control. Furthermore, the threaded connection has a certain degree of self-locking, allowing the telescopic rod to remain stable after being adjusted to a suitable position, preventing it from retracting on its own due to external forces, and ensuring the reliability of the working process.

[0013] As a preferred technical solution, the end of the drive shaft away from the threaded head extends to the outside of the main shaft body, and a knob is integrally formed coaxially at the end located outside the main shaft body. The knob increases the convenience of rotating the drive shaft.

[0014] As a preferred technical solution, the mounting block has a threaded ring integrally formed coaxially at one end near the threaded sleeve, and the outer circumference of the threaded ring is threadedly connected to the inner ring wall of the mounting sleeve. This connection method facilitates the disassembly and installation of the mounting block. When the magnetic end is damaged or needs to be replaced with a different specification of magnetic end to adapt to different L-pins, the mounting block can be easily unscrewed for replacement.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a combined structure comprising a main body, a telescopic rod, a mounting sleeve, an electromagnet, a mounting block, and a magnetic end. The electromagnet, when energized, magnetically attracts the L-pin, and when de-energized, releases it, enabling convenient L-pin replacement. The telescopic rod allows for adjustable working distance to adapt to different work scenarios. A piezoelectric switch controls the circuit's on / off state, simplifying operation. A battery compartment and battery power the electromagnet, enabling the device to operate independently. The overall structure is compact, and the combination of magnetic attraction and circuit control significantly improves L-pin replacement efficiency and reduces operational difficulty. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 In this utility model Figure 1 Internal structure diagram;

[0019] Figure 3 This is a schematic diagram of the connection between the telescopic rod and the drive shaft in this utility model;

[0020] Figure 4 This is a schematic diagram of the magnetic suction end and the mounting sleeve in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Main rod body; 10. Strip opening; 11. Press-to-opening electric switch; 12. Battery compartment; 13. Drive shaft; 130. Knob; 14. Threaded head; 2. Telescopic rod; 20. Push block; 200. Connecting block; 21. Threaded sleeve; 22. Movable groove; 3. Mounting sleeve; 30. Electromagnet; 4. Magnetic end; 40. Mounting block; 41. Threaded ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] The magnetically adsorbed L-needle easy-to-replace device includes a main rod 1 and a telescopic rod 2 slidably installed inside the main rod 1. A mounting sleeve 3 is fixedly connected to one end of the telescopic rod 2 outside the main rod 1. An electromagnet 30 is fixedly installed inside the mounting sleeve 3. A mounting block 40 is threadedly connected to the end of the mounting sleeve 3 away from the main rod 1. A magnetic end 4 is fixedly connected to the outer wall of the mounting block 40. The magnetic end 4 is L-shaped and adapted to the size of the L-needle. A battery compartment 12 is fixedly connected to the bottom of the main rod 1. A push-button electric switch 11 is installed on the outer wall of the main rod 1. A battery is installed in the battery compartment 12. The battery, push-button electric switch 11 and electromagnet 30 are connected in series by wires. By combining a main rod 1, a telescopic rod 2, a mounting sleeve 3, an electromagnet 30, a mounting block 40, and a magnetic end 4, the device utilizes the electromagnet 30 to magnetically attract the L-needle when energized and release it when de-energized, enabling convenient L-needle replacement. The telescopic rod 2 allows for adjustable working distance to adapt to different operating scenarios. A piezoelectric switch 11 controls the circuit's on / off state, simplifying operation. The battery compartment 12 and a battery power the electromagnet 30, enabling the device to operate independently. The overall structure is compact, and the combination of magnetic attraction and circuit control significantly improves L-needle replacement efficiency and reduces operational difficulty.

[0026] In a preferred embodiment, a push block 20 is fixedly connected to the end of the outer circumference of the telescopic rod 2 away from the mounting sleeve 3. A connecting block 200 is integrally formed between the push block 20 and the outer wall of the telescopic rod 2. A strip-shaped opening 10 is provided on the main rod body 1, which is slidably connected to the connecting block 200. This allows the user to conveniently control the extension and retraction of the telescopic rod 2 through the push block 20. Compared with directly operating the telescopic rod 2, it is easier to apply force and control, improving the convenience of adjusting the telescopic rod 2 and the feel of operation.

[0027] In a preferred embodiment, the outer surface of the push block 20 is arc-shaped and has several parallel anti-slip textures, and the inner ring wall of the push block 20 is in close contact with the outer ring wall of the main rod 1. The arc-shaped design conforms to the shape of the fingers and is ergonomic, providing a comfortable grip when operating the push block 20; the anti-slip textures increase the friction between the fingers and the push block 20.

[0028] As a preferred embodiment, one end of the battery compartment 12 is open, and a sealing cover is threaded into the opening. This design facilitates the user to open the sealing cover to replace or maintain the battery. When the battery is depleted, a new battery can be quickly replaced to ensure continuous operation of the device.

[0029] In a preferred embodiment, a drive shaft 13 is rotatably mounted inside the main rod 1, and a movable slot 22 is provided inside the telescopic rod 2 for the drive shaft 13 to be inserted. This allows the drive shaft 13 to drive the telescopic rod 2 to extend and retract, and this structure can achieve more stable telescopic control.

[0030] In a preferred embodiment, a threaded head 14 is coaxially fixed to one end of the drive shaft 13 mounting sleeve 3, and a threaded sleeve 21 is fixedly connected to the end of the telescopic rod 2 located away from the mounting sleeve 3. The threaded head 14 is threadedly connected to the threaded sleeve 21. After the telescopic rod 2 is extended to a certain length, that is, after the threaded head 14 contacts the threaded sleeve 21, the extension length of the telescopic rod 2 can be finely adjusted by rotating the drive shaft 13. This is more precise than manual control. At the same time, the threaded connection has a certain degree of self-locking, which allows the telescopic rod 2 to remain stable after being adjusted to a suitable position, preventing it from retracting on its own due to external forces and ensuring the reliability of the working process.

[0031] In a preferred embodiment, the drive shaft 13 extends to the outside of the main shaft 1 at the end away from the threaded head 14, and a knob 130 is integrally formed coaxially at the end located outside the main shaft 1. The knob 130 increases the convenience of rotating the drive shaft 13.

[0032] As a preferred embodiment, the mounting block 40 has a threaded ring 41 integrally formed coaxially at one end near the threaded sleeve 21, and the outer circumference of the threaded ring 41 is threadedly connected to the inner ring wall of the mounting sleeve 3. This connection method facilitates the disassembly and installation of the mounting block 40. When the magnetic end 4 is damaged or needs to be replaced with a different specification of magnetic end 4 to adapt to different L-pins, the mounting block 40 can be easily unscrewed for replacement.

[0033] In use, the magnetically adsorbed L-needle replacement device of this utility model first supplies power through the battery in the battery compartment 12. Pressing the push-button electrical switch 11 on the outer wall of the main rod 1 activates the circuit, energizing the electromagnet 30 in the mounting sleeve 3 and generating magnetism, allowing the magnetic end 4 to attract the appropriate L-needle. If the working distance is unsuitable, the push block 20 on the telescopic rod 2 can be manually pushed. Through the sliding cooperation between the connecting block 200 and the strip opening 10 of the main rod 1, the extension length of the telescopic rod 2 can be adjusted to adapt to different scenarios. The arc design and anti-slip texture of the push block 20 provide a comfortable grip and stable operation. For fine adjustment of the telescopic rod 2... To adjust the length, rotate the knob 130 on the outside of the main rod 1, which drives the drive shaft 13 to rotate. Fine adjustments are achieved through the threaded transmission between the threaded head 14 and the threaded sleeve 21, and the self-locking nature of the thread ensures the stability of the telescopic rod 2. After the L-pin is installed, related operations can be performed. When the L-pin needs to be replaced, press the electric switch 11 again to cut off the circuit. The electromagnet 30 loses its magnetism, and the old L-pin can be easily removed and replaced with a new one. If the magnetic end 4 is damaged or needs to be adapted to different L-pins, unscrew the mounting block 40 to replace it. If the battery power is insufficient, unscrew the sealing cover of the battery compartment 12 and replace it with a new battery to ensure continuous operation of the device.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for convenient replacement of a magnetic adsorbed L-needle, characterized in that: The device includes a main rod (1) and a telescopic rod (2) that is slidably installed inside the main rod (1). The telescopic rod (2) is fixedly connected to an installation sleeve (3) at one end outside the main rod (1). An electromagnet (30) is fixedly installed inside the installation sleeve (3). An installation block (40) is threadedly connected to the end of the installation sleeve (3) away from the main rod (1). A magnetic end (4) is fixedly connected to the outer wall of the installation block (40). The magnetic end (4) is L-shaped and adapted to the size of an L-shaped pin. A battery compartment (12) is fixedly connected to the bottom of the main rod (1). A push-button electric switch (11) is installed on the outer wall of the main rod (1). A storage battery is installed inside the battery compartment (12). The storage battery, the push-button electric switch (11), and the electromagnet (30) are connected in series by wires.

2. The magnetically adsorbed L-needle convenient replacement device as described in claim 1, characterized in that: A push block (20) is fixedly connected to one end of the outer circumference of the telescopic rod (2) away from the mounting sleeve (3). A connecting block (200) is integrally formed between the push block (20) and the outer wall of the telescopic rod (2). A strip-shaped opening (10) is provided on the main rod body (1) that is slidably connected to the connecting block (200).

3. The magnetically adsorbed L-needle convenient replacement device as described in claim 2, characterized in that: The outer surface of the push block (20) is arc-shaped and has several parallel anti-slip patterns. The inner ring wall of the push block (20) is closely fitted with the outer ring wall of the main rod (1).

4. The magnetically adsorbed L-needle convenient replacement device as described in claim 3, characterized in that: One end of the battery compartment (12) is open, and a sealing cap is threaded into the opening.

5. The magnetically adsorbed L-needle convenient replacement device as described in claim 4, characterized in that: A drive shaft (13) is rotatably installed inside the main rod (1), and an active groove (22) is provided inside the telescopic rod (2) for the drive shaft (13) to be inserted.

6. The magnetically adsorbed L-needle convenient replacement device as described in claim 5, characterized in that: The drive shaft (13) is mounted on a sleeve (3) with a threaded head (14) fixed on one end. The telescopic rod (2) is fixedly connected to a threaded sleeve (21) at the end away from the mounting sleeve (3). The threaded head (14) is threadedly connected to the threaded sleeve (21).

7. The magnetically adsorbed L-needle convenient replacement device as described in claim 6, characterized in that: The drive shaft (13) extends to the outside of the main rod (1) at one end away from the threaded head (14), and a knob (130) is integrally formed on the outside of the main rod (1) on the same axis.

8. The magnetically adsorbed L-needle convenient replacement device as described in claim 7, characterized in that: The mounting block (40) has a threaded ring (41) integrally formed on one end near the threaded sleeve (21) on the same axis. The outer circumference of the threaded ring (41) is threadedly connected to the inner ring wall of the mounting sleeve (3).

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