Handheld suction pen

Abstract

The utility model discloses a handheld suction pen which comprises a handheld pipe, a detachable pipe is arranged at the bottom of the handheld pipe, a suction cup is arranged at the bottom of the detachable pipe, a first conical surface is fixedly arranged at the upper end of the detachable pipe, a second conical surface is correspondingly arranged on the inner wall of the handheld pipe, and the first conical surface is located in the second conical surface. A top ring is fixedly arranged on one side of the first conical surface and located on the outer wall of the detachable pipe, a connecting nut is arranged at the connecting position of the top ring and the handheld pipe, external threads are arranged on the outer wall of the handheld pipe, and the connecting nut is in threaded connection with the handheld pipe through the external threads. The interior of the suction cup can be separated from the handheld pipe and the top ring by rotating the connecting nut, and at the moment, the suction cup can be detached, so that the suction cups of different sizes can be replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of pen suction technology, and more specifically, to a handheld pen suction device. Background Technology

[0002] A handheld suction pen is a common tool used for installing, removing, and repairing electronic components, especially useful when handling small or delicate components (such as SMD components, chips, capacitors, etc.). It uses negative pressure suction to help users easily grasp and place components, avoiding damage or contamination that can occur with direct hand handling. A handheld suction pen typically consists of a suction nozzle, a negative pressure device, and a release mechanism. The suction nozzle is usually made of silicone or other soft materials to avoid scratching components.

[0003] However, most existing handheld suction pens have their suction nozzles fixedly installed at the bottom of the pen, which makes it more troublesome to disassemble and replace the nozzles when needed to fit components of different sizes, reducing the flexibility of the device during use.

[0004] Furthermore, during the suction process, fine dust from the outside air can easily enter the negative pressure device, affecting its lifespan and consequently impacting its normal operation. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a handheld suction pen to solve the technical problem mentioned in the background art, where the suction nozzle of most existing handheld suction pens is fixedly installed at the lower end of the suction pen, which makes it quite troublesome to disassemble and replace the suction nozzle when it is necessary to disassemble and replace components of different sizes.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a handheld suction pen, comprising a handheld tube, a detachable tube at the bottom of the handheld tube, a suction cup at the bottom of the detachable tube, a first conical surface fixedly provided at the upper end of the detachable tube, a second conical surface correspondingly provided on the inner wall of the handheld tube, the first conical surface being located inside the second conical surface, a top ring fixedly provided on one side of the first conical surface and on the outer wall of the detachable tube, a connecting nut provided at the connection position between the top ring and the handheld tube, an external thread provided on the outer wall of the handheld tube, the connecting nut being threadedly connected to the handheld tube through the external thread, the outer wall of the top ring contacting the inner wall of the connecting nut, an annular groove provided at the upper end of the handheld tube, and a filtering mechanism provided inside the annular groove.

[0009] The present invention is further configured such that the filtration mechanism includes a housing, the housing is located inside the annular groove and its bottom contacts the inner wall of the annular groove, a coarse filter plate is slidably disposed inside the housing, a fine filter plate is slidably disposed above the coarse filter plate, an activated carbon plate is slidably disposed above the fine filter plate, and a support column is fixedly disposed at the bottom of the coarse filter plate, the fine filter plate and the activated carbon plate to facilitate the filtration of air entering the device.

[0010] The present invention is further configured such that a fastening ring is provided at the upper end of the activated carbon plate, and an external threaded ring is provided at the bottom of the fastening ring. The external threaded ring is threadedly connected to the inner wall of the shell, which facilitates the fixed installation of the coarse filter plate, the fine filter plate and the activated carbon plate.

[0011] The present invention is further configured such that the upper end of the handheld tube is provided with a threaded cap, the threaded cap is threadedly connected to the outer wall of the handheld tube, the upper end of the threaded cap is fixedly provided with a connecting tube, the upper end of the connecting tube is provided with an outer connecting tube, and the outer connecting tube is rotatably installed with the connecting tube through a sealed bearing, which makes the device more flexible in the connection position with the external negative pressure device.

[0012] The present invention is further configured such that the other end of the connecting pipe is bent and a flange is fixedly provided, which facilitates the installation of the device with a negative pressure device.

[0013] The present invention is further provided with a first gasket between the top ring and the handheld tube, which facilitates increasing the sealing between the handheld tube and the detachable tube.

[0014] The present invention is further provided with a second gasket between the threaded cap and the handheld tube, which facilitates increasing the sealing between the threaded cap and the handheld tube.

[0015] The present invention is further provided that the outer wall of the handheld tube is provided with anti-slip texture, which makes it easy to pick up the handheld tube.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a handheld suction pen, which has the following beneficial effects:

[0018] 1. By setting up a detachable tube, suction cup, top ring, and connecting nut, when the user needs to disassemble and replace the suction cup, the internal parts can be separated from the handle tube and top ring by turning the connecting nut. At this time, the suction cup can be removed to facilitate the replacement of suction cups of different sizes. Furthermore, by setting a first conical surface and a second conical surface, the outer wall of the first conical surface will make close contact with the inner wall of the second conical surface during installation due to the compression and gradual insertion of the first conical surface, thereby increasing the sealing of the connection position and preventing air leakage.

[0019] 2. By setting up a housing, coarse filter plate, fine filter plate, and activated carbon plate, the air entering the handheld tube can be filtered to remove fine dust from inside, thereby preventing it from entering the external negative pressure device and affecting its service life. In addition, the user can remove the threaded cover to remove the housing from the inside of the annular groove, so as to facilitate the removal of the coarse filter plate, fine filter plate, and activated carbon plate for replacement and cleaning.

[0020] 3. By setting up a connecting pipe, an external pipe, and an external flange, the user can fix the device to the negative pressure equipment through the external flange, so that the suction cup can adsorb and install the components. Since the external pipe and the connecting pipe are rotatably installed, it is more convenient to move the device, increasing the flexibility of the device during use and facilitating the rapid installation of components. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of a handheld suction pen in an unused state;

[0022] Figure 2 A cross-sectional view of a handheld pen;

[0023] Figure 3 Exploded view of the assembly of the handheld tube, housing, coarse filter plate, fine filter plate and activated carbon plate;

[0024] Figure 4 This is a schematic diagram showing the positions of the suction cup, the first conical surface, and the top ring on the detachable tube.

[0025] Figure 5 This is an exploded view showing the installation of the connecting pipe, external pipe, and second gasket on the handheld tube.

[0026] In the diagram: 1. Handheld tube; 2. Detachable tube; 3. Suction cup; 4. First conical surface; 5. Second conical surface; 6. Top ring; 7. Connecting nut; 8. Annular groove; 9. Shell; 10. Coarse filter plate; 11. Fine filter plate; 12. Activated carbon plate; 13. Support column; 14. Fastening ring; 15. External threaded ring; 16. Threaded cap; 17. Connecting tube; 18. External connecting tube; 19. Flange; 20. First gasket; 21. Second gasket; 22. Anti-slip texture. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A handheld suction pen includes a handheld tube 1, a detachable tube 2 at the bottom of the handheld tube 1, a suction cup 3 at the bottom of the detachable tube 2, a first conical surface 4 fixedly provided at the upper end of the detachable tube 2, a second conical surface 5 correspondingly provided on the inner wall of the handheld tube 1, the first conical surface 4 being located inside the second conical surface 5, a top ring 6 fixedly provided on one side of the first conical surface 4 and on the outer wall of the detachable tube 2, a connecting nut 7 provided at the connection position between the top ring 6 and the handheld tube 1, an external thread provided on the outer wall of the handheld tube 1, the connecting nut 7 being threadedly connected to the handheld tube 1 through the external thread, the outer wall of the top ring 6 contacting the inner wall of the connecting nut 7, an annular groove 8 provided at the upper end of the handheld tube 1, a filter mechanism provided inside the annular groove 8, and anti-slip texture 22 provided on the outer wall of the handheld tube 1.

[0031] In this embodiment, the filtration mechanism includes a housing 9, which is located inside the annular groove 8 and its bottom contacts the inner wall of the annular groove 8. A coarse filter plate 10 is slidably disposed inside the housing 9, and a fine filter plate 11 is slidably disposed at the upper end of the coarse filter plate 10. An activated carbon plate 12 is slidably disposed at the upper end of the fine filter plate 11. Support columns 13 are fixedly disposed at the bottom of the coarse filter plate 10, the fine filter plate 11, and the activated carbon plate 12. A fastening ring 14 is disposed at the upper end of the activated carbon plate 12, and an external threaded ring 15 is disposed at the bottom of the fastening ring 14. The external threaded ring 15 is threadedly connected to the inner wall of the housing 9.

[0032] More specifically, when the user needs to disassemble and replace the suction cup 3, the internal parts can be disassembled from the handheld tube 1 and the top ring 6 by rotating the connecting nut 7. At this time, the suction cup 3 can be disassembled to facilitate the replacement of suction cups 3 of different sizes. Furthermore, by setting the first conical surface 4 and the second conical surface 5, the outer wall of the first conical surface 4 and the inner wall of the second conical surface 5 will be in close contact during the installation of the suction cup 3 due to the pressing and gradual penetration of the first conical surface 4, thereby increasing the sealing of the connection position and preventing air leakage. The coarse filter plate 10, the fine filter plate 11 and the activated carbon plate 12 can filter the air entering the handheld tube 1 to remove the fine dust inside, thereby preventing it from entering the external negative pressure device. In addition, the user can remove the threaded cover 16 to remove the housing 9 from the inside of the annular groove 8 to facilitate the removal of the coarse filter plate 10, the fine filter plate 11 and the activated carbon plate 12, which is helpful for replacement and cleaning.

[0033] Please see Figure 1 and Figure 5 As an implementation method for connecting with negative pressure equipment in different directions: the upper end of the handheld tube 1 is provided with a threaded cap 16, the threaded cap 16 is threadedly connected to the outer wall of the handheld tube 1, the upper end of the threaded cap 16 is fixedly provided with a connecting tube 17, the upper end of the connecting tube 17 is provided with an outer connecting tube 18, the outer connecting tube 18 is rotatably installed with the connecting tube 17 through a sealed bearing, the other end of the connecting tube 17 is set as an elbow, and a flange 19 is fixedly provided.

[0034] Specifically, users can use an external flange to fix the device to the negative pressure equipment so that the suction cup 3 can adsorb and install the component. Since the external pipe 18 and the connecting pipe 17 are rotatably installed, it is more convenient to move the device, which increases the flexibility of the device during use and helps to quickly install the component.

[0035] Please refer to Figure 2 As a further embodiment to improve the sealing effect of the mechanism: a first gasket 20 is provided between the top ring 6 and the handheld tube 1, and a second gasket 21 is provided between the threaded cap 16 and the handheld tube 1.

[0036] Specifically, it can increase the overall sealing of the device to prevent air leakage.

[0037] In summary, when using the overall equipment: the user can fix the device to the negative pressure equipment through the external flange, so that the suction cup 3 can adsorb and install the components. Since the external pipe 18 and the connecting pipe 17 are rotatably installed, it is more convenient to move the device and facilitates quick component installation. When the user needs to disassemble and replace the suction cup 3, the internal parts can be disassembled from the handheld tube 1 and the top ring 6 by rotating the connecting nut 7, at which point the suction cup 3 can be removed for easy replacement with suction cups of different sizes. Furthermore, by setting the first conical surface 4 and the second conical surface 5, it is possible to... During installation, the suction cup 3, due to the pressing and gradual penetration of the first conical surface 4, will cause the outer wall of the first conical surface 4 to come into close contact with the inner wall of the second conical surface 5, thereby increasing the sealing of the connection position and preventing air leakage. The coarse filter plate 10, fine filter plate 11, and activated carbon plate 12 can filter the air entering the handheld tube 1 to remove fine dust from inside, thereby preventing it from entering the external negative pressure device. Furthermore, the user can later remove the threaded cover 16 to remove the housing 9 from the inside of the annular groove 8, making it convenient to remove the coarse filter plate 10, fine filter plate 11, and activated carbon plate 12, which is helpful for replacement and cleaning.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-held suction pen comprising a hand-held tube (1), characterized in that: The bottom of the handheld tube (1) is provided with a detachable tube (2), the bottom of the detachable tube (2) is provided with a suction cup (3), the upper end of the detachable tube (2) is fixedly provided with a first taper (4), the inner wall of the handheld tube (1) is correspondingly provided with a second taper (5), the first taper (4) is located inside the second taper (5), the top ring (6) is fixedly arranged on one side of the first taper (4) and the outer wall of the detachable tube (2), the connecting position of the top ring (6) and the handheld tube (1) is provided with a connecting nut (7), the outer wall of the handheld tube (1) is provided with external threads, the connecting nut (7) is threadedly connected with the handheld tube (1) through the external threads, the outer wall of the top ring (6) is in contact with the inner wall of the connecting nut (7), and the upper end of the handheld tube (1) is provided with an annular groove (8), and the annular groove (8) is provided with a filtering mechanism.

2. A hand-held suction device according to claim 1, wherein: The filtering mechanism comprises a shell (9), the shell (9) is located in the annular groove (8), and the bottom is in contact with the inner wall of the annular groove (8), the inner wall of the shell (9) is slidably provided with a coarse filter plate (10), the upper end of the coarse filter plate (10) is slidably provided with a fine filter plate (11), the upper end of the fine filter plate (11) is slidably provided with an activated carbon plate (12), and the bottom of the coarse filter plate (10), the fine filter plate (11) and the activated carbon plate (12) is fixedly provided with a supporting column (13).

3. A hand-held suction wand according to claim 2, wherein: The upper end of the activated carbon plate (12) is provided with a fastening ring (14), the bottom of the fastening ring (14) is provided with an external thread ring (15), and the external thread ring (15) is threadedly connected with the inner wall of the shell (9).

4. The hand-held suctioning device of claim 1, wherein: The upper end of the handheld tube (1) is provided with a threaded cover (16), the threaded cover (16) is threadedly connected with the outer wall of the handheld tube (1), the upper end of the threaded cover (16) is fixedly provided with a communication pipe (17), the upper end of the communication pipe (17) is provided with an external pipe (18), and the external pipe (18) is rotatably installed with the communication pipe (17) through a sealing bearing.

5. A hand-held suction wand according to claim 4, wherein: The other end of the communication pipe (17) is provided with an elbow, and a flange plate (19) is fixedly arranged.

6. A hand-held suction wand according to claim 1, characterized in that: The first gasket (20) is arranged between the top ring (6) and the handheld tube (1).

7. A hand-held suctioning device according to claim 4, characterized in that: The second gasket (21) is arranged between the threaded cover (16) and the handheld tube (1).

8. A hand-held suction wand according to claim 2, wherein: The outer wall of the handheld tube (1) is provided with anti-skid lines (22).

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