A vacuum screwdriver and its operating method

Abstract

This invention discloses a vacuum screwdriver and its operating method. The vacuum screwdriver includes a screwdriver body with a flow channel inside, a first ball valve mechanism, at least one diaphragm system, a second ball valve mechanism, and a one-way valve. One end of the flow channel is sequentially connected to the first ball valve mechanism, the diaphragm system for pressing to release air, the second ball valve mechanism, and the one-way valve. A pressing module is provided on the inner wall of the screwdriver body, and the pressing module is connected to the diaphragm system. The one-way valve communicates with a vent hole opened on the screwdriver body. One end of the vacuum screwdriver is attached to the worn screw and nut. By repeatedly pressing the diaphragm system, the gas inside the vacuum screwdriver is released, creating a vacuum state inside. The external atmospheric pressure secures the vacuum screwdriver and the worn screw and nut together, and the screw can be removed by twisting. The vacuum screwdriver of this invention is small and portable, requires no additional energy or structure, and has a simple operating method.

Description

Technical Field

[0001] This invention belongs to the field of screwdriver technology, specifically relating to a vacuum screwdriver and its operating method. Background Technology

[0002] Screws and screwdrivers are commonly used connecting parts and tools in industry. Screws are widely used in various electrical appliances, equipment and tools because of their low cost and good connection performance.

[0003] Currently, due to the inconsistent quality of screws, the cross or slotted grooves on the screw caps often wear down during use, making them difficult to remove.

[0004] There are three traditional methods: first, to deepen the Phillips head or slotted head so that the screwdriver can be used normally; second, to weld metal onto the nut and then use needle-nose pliers or other pliers to unscrew it; and third, to insert a rubber pad or other high-friction washer into the Phillips head or slotted head in the hope that the screwdriver can unscrew the screw. Other methods are difficult to implement due to their low success rate or high cost.

[0005] The above methods may be used cautiously due to the high cost of the machines, or they may be difficult to implement due to the lack of the necessary equipment, or the success rate may be low and the results may not be guaranteed.

[0006] Based on the above analysis, the problems and shortcomings of the existing technology are as follows:

[0007] (1) Existing screws often suffer from wear on the letter grooves on the nuts due to quality, design and installation problems.

[0008] (2) Existing screwdrivers are difficult to remove due to wear on the slot.

[0009] (3) Existing technologies are difficult to implement due to the high cost of machines, shortage of equipment, and low success rate. Summary of the Invention

[0010] In view of the problems existing in the prior art, the purpose of this invention is to provide a vacuum screwdriver and its operating method.

[0011] The specific technical solution is as follows:

[0012] A vacuum screwdriver includes a screwdriver body. The screwdriver body contains a flow channel, a first ball valve mechanism, at least one diaphragm system, a second ball valve mechanism, and a one-way valve. One end of the flow channel is connected to a sealing head located at the end of the screwdriver body. The other end of the flow channel is sequentially connected to the first ball valve mechanism, a diaphragm system for pressing to release air, the second ball valve mechanism, and the one-way valve. The diaphragm systems are sequentially connected to each other. A pressing module is provided on the inner wall of the screwdriver body, and the pressing module is connected to the diaphragm system. The one-way valve communicates with a vent hole opened on the screwdriver body.

[0013] Furthermore, the diaphragm system includes a first set of diaphragm mechanisms and a second set of diaphragm mechanisms. The pressing module includes a first pressing block and a second pressing block, which are respectively disposed on the inner wall of the screwdriver body. The first set of diaphragm mechanisms and the second set of diaphragm mechanisms are arranged opposite to each other. The first set of diaphragm mechanisms includes a first spring, a first fixing structure, and a first diaphragm component. The first fixing structure is disposed on the first diaphragm component. One end of the first spring is connected to the first fixing structure, and the other end is connected to the first pressing block. The second set of diaphragm mechanisms includes a second spring, a second fixing structure, and a second diaphragm component. The second fixing structure is disposed on the second diaphragm component. One end of the second spring is connected to the second fixing structure, and the other end is connected to the second pressing block. The diaphragm component is a rubber product and is in a reciprocating motion state in this invention. If the diaphragm component and the spring are directly connected without the fixing structure, the diaphragm component may be broken or damaged during the reciprocating motion. The upper and lower ends of the first diaphragm component and the second diaphragm component are respectively connected to a first ball valve mechanism and a second ball valve mechanism.

[0014] Furthermore, the first ball valve mechanism includes a first connecting member and a first ball valve. The first connecting member is a hollow structure with a smaller diameter at both ends and a larger diameter in the middle. The first ball valve is located inside the first connecting member. The diameter of the first ball valve is larger than the diameter at both ends of the first connecting member to ensure that the first ball valve will not detach from the first connecting member. The two ends of the first connecting member are respectively connected to the diaphragm system and the flow channel.

[0015] Furthermore, the second ball valve mechanism includes a second connecting member and a second ball valve. The second connecting member is a hollow structure with a smaller diameter at both ends and a larger diameter in the middle. The second ball valve is located inside the second connecting member. The diameter of the second ball valve is larger than the diameter at both ends of the second connecting member to ensure that the second ball valve will not detach from the second connecting member. The two ends of the second connecting member are respectively connected to the diaphragm system and the check valve.

[0016] The specific implementation method of the above-mentioned vacuum screwdriver is as follows:

[0017] 1) Place the sealing head onto the worn screw nut and press repeatedly on the pressing module on the screwdriver body. The first spring and the second spring are pressed at the same time, pushing the first diaphragm component and the second diaphragm component to move towards each other, so that the gas in the diaphragm system can escape to both sides.

[0018] 2) When pressed, the first ball valve blocks the exhaust port of the first connecting piece under the action of gravity and gas. The second ball valve is suspended in the second connecting piece under the action of gas. After passing through the second connecting piece and the one-way valve, the gas is discharged through the vent.

[0019] 3) When the pressure is released, the second ball valve blocks the exhaust port of the second connecting part under the action of gravity and gas. The first ball valve is suspended in the first connecting part under the action of gas. The gas in the flow channel is discharged to the diaphragm system. After repeated pressing, most or all of the gas in the vacuum screwdriver is discharged, and the inside is in a vacuum state. The external atmospheric pressure presses the vacuum screwdriver and the worn screw nut together, thereby driving the worn screw nut to rotate and be removed.

[0020] The advantages and positive effects of the technical solution to be protected by this invention are as follows:

[0021] 1) In this invention, the internal space of a traditional screwdriver is equipped with a diaphragm system. By simply pressing, the air inside the screwdriver can be extracted to form a vacuum. If a screwdriver head is attached, it can achieve a stable adsorption effect. If no screwdriver head is attached, the vacuum screwdriver can be directly attached to the screw with worn slots in the nut. Atmospheric pressure can be used to make the two fit firmly, and the screw can be removed by twisting.

[0022] 2) The vacuum screwdriver of the present invention is small and portable, requiring no additional energy or structure. If a stronger adsorption or stabilization effect is to be achieved, the number of diaphragm systems can be increased in the circumferential direction of the vacuum screwdriver. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the present invention;

[0024] Figure 2 This is a magnified view of the details at point A;

[0025] Figure 3 This is an assembly drawing for when the screw diameter is greater than or equal to the inner diameter of the flow channel.

[0026] Figure 4 This is an assembly drawing when the screw diameter is smaller than the inner diameter of the flow channel.

[0027] In the diagram: 1. Screwdriver body; 2. Sealing head; 3. Flow channel; 4. First ball valve mechanism; 41. First connecting member; 42. First ball valve; 5. Diaphragm system; 51. First diaphragm mechanism; 511. First spring; 512. First fixing structure; 513. First diaphragm component; 52. Second diaphragm mechanism; 521. Second spring; 522. Second fixing structure; 523. Second diaphragm component; 6. Second ball valve mechanism; 61. Second connecting member; 62. Second ball valve; 7. Check valve; 8. Pressing module; 81. First pressing block; 82. Second pressing block; 9. Vent hole. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0029] like Figure 1 and Figure 2 As shown, a vacuum screwdriver includes a screwdriver body 1. The screwdriver body 1 contains a flow channel 3, a first ball valve mechanism 4, a diaphragm system 5, a second ball valve mechanism 6, a one-way valve 7, and a pressing module 8. The first ball valve mechanism 4 includes a first connecting member 41 and a first ball valve 42. The first connecting member 41 is a hollow structure with a larger diameter in the middle and smaller diameters at both ends. The first ball valve 42 is located inside the first connecting member 41, and its diameter is larger than the diameters at both ends of the first connecting member 41. The lower end of the flow channel 3 is connected to a sealing element located at the end of the screwdriver body 1. The head 2 is connected, and the upper end of the flow channel 3 is connected to the lower end of the first connecting member 41. The diaphragm system 5 includes a first set of diaphragm mechanisms 51 and a second set of diaphragm mechanisms 52. The pressing module 8 includes a first pressing block 81 and a second pressing block 82. The first pressing block 81 and the second pressing block 82 are respectively disposed on the inner wall of the screwdriver body 1. The first set of diaphragm mechanisms 51 includes a first spring 511, a first fixing structure 512 and a first diaphragm component 513. The first fixing structure 512 is disposed on the first diaphragm component 513. One end of the first spring 511 is connected to the first diaphragm component 513. A fixed structure 512 is fixedly connected to the first diaphragm component 513, and the other end of the first spring 511 is connected to the first pressing block 81. The second diaphragm mechanism 52 includes a second spring 521, a second fixed structure 522, and a second diaphragm component 523. The second fixed structure 522 is disposed on the second diaphragm component 523. One end of the second spring 521 is fixedly connected to the second diaphragm component 523 through the second fixed structure 522, and the other end of the second spring 521 is connected to the second pressing block 82. The first diaphragm component 513 and the second... The diaphragm components 523 are arranged opposite each other. The second ball valve mechanism 6 includes a second connecting member 61 and a second ball valve 62. The second connecting member 61 is a hollow structure with a large middle diameter and small two-port diameter. The second ball valve 62 is located inside the second connecting member 61. The diameter of the second ball valve 62 is larger than the two-port diameter of the second connecting member 61. The upper end of the diaphragm system 5 is connected to the lower end of the second connecting member 61, and the lower end is connected to the upper end of the first connecting member 41. The upper end of the second connecting member 61 is connected to a one-way valve 7. The one-way valve 7 is connected to the vent hole 9 of the screwdriver body 1.

[0030] The specific implementation method of the above-mentioned vacuum screwdriver is as follows:

[0031] 1) Place the sealing head 2 onto the worn screw nut, such as... Figure 3 As shown, when the diameter of the screw and nut is greater than or equal to the inner diameter of the flow channel 3, the flow channel 3 can fit snugly against the screw and nut. Figure 4As shown, when the diameter of the screw and nut is smaller than the inner diameter of the flow channel 3, the screw and nut are inserted into the port of the flow channel 3. The pressing module 8 on the screwdriver body 1 is pressed repeatedly, and the first spring 511 and the second spring 521 are pressed at the same time, pushing the first diaphragm component 513 and the second diaphragm component 523 to move towards each other, so that the gas in the diaphragm system 5 escapes to both sides.

[0032] 2) When pressed, the first ball valve 42 blocks the exhaust port of the first connecting piece 41 under the action of gravity and gas. The second ball valve 62 is suspended in the second connecting piece 61 under the action of gas. After passing through the second connecting piece 61 and the one-way valve 7, the gas is discharged through the vent hole 9.

[0033] 3) When the press is released, the second ball valve 62 blocks the exhaust port of the second connecting piece 61 under the action of gravity and gas. The first ball valve 42 is suspended in the first connecting piece 41 under the action of gas. The gas in the flow channel 3 is discharged to the diaphragm system 5. After repeated pressing, most or all of the gas in the vacuum screwdriver is discharged, and the inside is in a vacuum state. The external atmospheric pressure presses the vacuum screwdriver and the worn screw nut together, thereby driving the worn screw nut to rotate and be removed.

Claims

1. A vacuum screwdriver, characterized in that... The screwdriver includes a screwdriver body (1), which contains a flow channel (3), a first ball valve mechanism (4), a diaphragm system (5), a second ball valve mechanism (6), and a one-way valve (7). One end of the flow channel (3) is connected to a sealing head (2) located at the end of the screwdriver body (1), and the other end of the flow channel (3) is sequentially connected to the first ball valve mechanism (4), the diaphragm system (5) for pressing and venting, the second ball valve mechanism (6), and the one-way valve (7). The inner wall of the screwdriver body (1) is provided with a pressing module (8), which is connected to the diaphragm system (5). The one-way valve (7) is connected to a vent hole (9) opened on the screwdriver body (1). The diaphragm system (5) includes a first diaphragm mechanism (51) and a second diaphragm mechanism (52). The pressing module (8) includes a first pressing block (81) and a second pressing block (82), which are respectively located inside the screwdriver body (1). On the wall, the first diaphragm mechanism (51) and the second diaphragm mechanism (52) are arranged opposite to each other. The first diaphragm mechanism (51) includes a first spring (511), a first fixing structure (512) and a first diaphragm component (513). The first fixing structure (512) is located on the first diaphragm component (513). One end of the first spring (511) is connected to the first fixing structure (512), and the other end is connected to the first pressing block (81). The second diaphragm mechanism (52) includes a second spring (521), a second fixing structure (522) and a second diaphragm component (523). The second fixing structure (522) is located on the second diaphragm component (523). One end of the second spring (521) is connected to the second fixing structure (522), and the other end is connected to the second pressing block (82). The upper and lower ends of the first diaphragm component (513) and the second diaphragm component (523) are respectively connected to the first ball valve mechanism (4) and the second ball valve mechanism (6).

2. A vacuum screwdriver as described in claim 1, characterized in that... The first ball valve mechanism (4) includes a first connecting member (41) and a first ball valve (42). The first connecting member (41) is a hollow structure with a small diameter at both ends and a large diameter in the middle. The first ball valve (42) is located inside the first connecting member (41). The diameter of the first ball valve (42) is larger than the diameter at both ends of the first connecting member (41). The two ends of the first connecting member (41) are respectively connected to the diaphragm system (5) and the flow channel (3).

3. A vacuum screwdriver as described in claim 2, characterized in that... The second ball valve mechanism (6) includes a second connecting member (61) and a second ball valve (62). The second connecting member (61) is a hollow structure with a smaller diameter at both ends and a larger diameter in the middle. The second ball valve (62) is located inside the second connecting member (61). The diameter of the second ball valve (62) is larger than the diameter at both ends of the second connecting member (61). The two ends of the second connecting member (61) are respectively connected to the diaphragm system (5) and the check valve (7).

4. A method for operating a vacuum screwdriver as described in claim 3, characterized in that... The specific implementation method is as follows: 1) Place the sealing head (2) onto the worn screw nut and press repeatedly on the pressing module (8) on the screwdriver body (1). The first spring (511) and the second spring (521) are pressed at the same time, pushing the first diaphragm component (513) and the second diaphragm component (523) to move towards each other, so that the gas in the diaphragm system (5) escapes to both sides. 2) When pressed, the first ball valve (42) blocks the exhaust port of the first connecting part (41) under the action of gravity and gas. The second ball valve (62) is suspended in the second connecting part (61) under the action of gas. After passing through the second connecting part (61) and the one-way valve (7), the gas is discharged through the vent (9). 3) When the press is released, the second ball valve (62) blocks the exhaust port of the second connecting part (61) under the action of gravity and gas. The first ball valve (42) is suspended in the first connecting part (41) under the action of gas. The gas in the flow channel (3) is discharged to the diaphragm system (5). After repeated pressing, most or all of the gas in the vacuum screwdriver is discharged, and the inside is in a vacuum state. The external atmospheric pressure presses the vacuum screwdriver and the worn screw nut together, thereby driving the worn screw nut to rotate and be taken out.

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