Vacuum suction pen

Abstract

The utility model discloses a vacuum suction pen which comprises a shell, an air bag, a suction cup, an extrusion assembly, a reset piece and a clamping assembly. In the process of extruding the air bag, the extruding assembly can sequentially pass through the first extruding position, the second extruding position and the third extruding position. The clamping assembly can be clamped with and separated from the extrusion assembly, and when the clamping assembly is clamped with the extrusion assembly, the extrusion assembly is limited to the first extrusion position; by the adoption of the vacuum chuck, due to the fact that the clamping assembly can be connected with the extrusion assembly in the clamping mode, the extrusion assembly is limited to the first extrusion position in the process that the extrusion assembly moves from the second extrusion position to the release position, the air bag generates negative pressure for adsorbing parts in the suction cup, and the air bag cannot be completely recovered; parts are prevented from being damaged by too large suction force; and meanwhile, the extrusion assembly is kept at the first extrusion position under the action of the clamping assembly, and compared with manual pressing keeping, the mode is more stable, so that the suction force of the suction cup to the part is more stable.

Description

Technical Field

[0001] This application belongs to the field of manual tool technology, specifically relating to a vacuum pen. Background Technology

[0002] A vacuum suction pen is a common type of small pneumatic tool. Its basic principle is to generate suction by pressing an air bladder, which, in conjunction with a suction cup, picks up flat objects such as lenses and chips, allowing for more flexible assembly of small parts. Existing manual vacuum suction pens typically require manually pressing the air bladder to a preset depth to ensure stable suction. To prevent excessive suction from damaging parts, the operator must manually press down on the air bladder after it has recovered to a certain depth. However, manually pressing down can lead to instability, resulting in inconsistent suction. Utility Model Content

[0003] The technical problem this application aims to solve is that existing vacuum suction pens have unstable suction during use. To solve this problem, a vacuum suction pen that can prevent parts from being damaged and has stable suction is provided.

[0004] The technical solution proposed in this application is as follows:

[0005] A vacuum pen, comprising:

[0006] case;

[0007] An airbag is disposed within the housing;

[0008] A suction cup is attached to one end of the housing and communicates with the airbag;

[0009] A compression assembly is movably disposed in the housing and configured to operablely compress and release the airbag; the compression assembly is capable of passing through a release position for releasing the airbag during its movement, and during the compression of the airbag, the compression assembly is capable of sequentially passing through a first compression position, a second compression position, and a third compression position;

[0010] A reset member, disposed in the housing and connected to the pressing assembly, is used to provide a force that causes the pressing assembly to move toward the release position;

[0011] A snap-fit ​​assembly is disposed in the housing, and the snap-fit ​​assembly is capable of snapping into and separating from the extrusion assembly, and when snapping into the extrusion assembly, it limits the extrusion assembly to the first extrusion position;

[0012] During the movement of the extrusion assembly from the release position to the second extrusion position, the locking component can engage with the extrusion assembly; when the extrusion assembly moves to the third extrusion position, the locking component can disengage from the extrusion assembly.

[0013] Using the aforementioned vacuum suction pen, the snap-fit ​​component can snap into the squeezing component, thus limiting the squeezing component to the first squeezing position as it moves from the second squeezing position to the release position. This causes the airbag to generate negative pressure within the suction cup to adsorb the parts, and the airbag will not completely recover, thereby preventing excessive suction from damaging the parts. At the same time, the squeezing component is held in the first squeezing position by the snap-fit ​​component. Compared to manually pressing and holding, this method is more stable, thus making the suction force of the suction cup on the parts more stable.

[0014] Furthermore, the extrusion assembly includes a rotating component, a pressure rod, and a pressure plate. One end of the rotating component is rotatably connected to the housing, and the end of the rotating component away from the housing is connected to the pressure plate through the pressure rod, so as to drive the pressure plate to extrude and release the airbag during rotation. The snap-fit ​​assembly can snap into and separate from the rotating component.

[0015] Furthermore, the snap-fit ​​assembly includes a movable rod, a first elastic element, and a locking pin; the movable rod is slidably connected to the housing, the first elastic element is disposed between the housing and the movable rod, and is used to provide a force to keep the movable rod in its initial position; the locking pin is connected to the movable rod.

[0016] When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the rotating member can abut against the locking post and push the locking post to engage with the rotating member;

[0017] When the extrusion assembly moves to the third extrusion position, the locking pin can separate from the rotating component.

[0018] Furthermore, the rotating component is provided with a snap-fit ​​protrusion, and the snap-fit ​​protrusion is provided with a snap-fit ​​groove;

[0019] When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the locking protrusion can abut against the locking post and push the movable rod to slide, so that the locking post moves along the locking protrusion under the action of the first elastic member and enters and locks into the slot;

[0020] When the extrusion assembly moves to the third extrusion position, the locking post can separate from the locking protrusion.

[0021] Furthermore, the rotating component has a movable groove, and the movable groove has a snap-fit ​​protrusion. A movable gap is formed between the snap-fit ​​protrusion and the inner wall of the movable groove, and the snap-fit ​​groove communicates with the movable gap. The movable gap has an inlet and an outlet that penetrate the rotating component.

[0022] When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the snap-fit ​​protrusion can push the snap pin through the inlet into the movable gap and snap into the snap slot.

[0023] When the extrusion assembly moves to the third extrusion position, the locking pin can enter the movable gap from the locking slot, and the locking pin can disengage from the movable gap from the outlet.

[0024] Furthermore, the snap-fit ​​assembly also includes a mounting cylinder and a second elastic element. The mounting cylinder is installed in the housing, and the movable rod is slidably connected to the mounting cylinder. The first elastic element and the second elastic element are both disposed between the mounting cylinder and the movable rod, and the first elastic element and the second elastic element exert opposite forces on the movable rod, so that the movable rod tends to remain in the initial position.

[0025] Furthermore, the pressure plate includes a fixed part and an expansion part. The fixed part is movably connected to the housing, the pressure rod is connected to the fixed part, and the expansion part is slidably connected to the fixed part to adjust the pressing area of ​​the pressure plate on the airbag.

[0026] Furthermore, it also includes a connector and a locking assembly, the connector being rotatably connected to one end of the housing, the suction cup being connected to the connector, and the airbag communicating with the suction cup via the connector;

[0027] The locking assembly is disposed on the housing and detachably connected to the connector to secure the connector relative to the housing when connected to the connector.

[0028] Furthermore, the connector is provided with a plurality of locking holes spaced apart around the rotating shaft of the connector;

[0029] The locking assembly includes a locking pin and a locking elastic element. The locking pin is movably disposed on the housing and can be inserted into and removed from the locking hole during its movement, so as to fix the connector relative to the housing when inserted into the locking hole. The locking elastic element is disposed between the housing and the locking pin and is used to provide a force for inserting the locking pin into the locking hole.

[0030] Furthermore, the suction cup is detachably connected to the connector.

[0031] In summary, the vacuum suction pen provided in this application has at least the following advantages:

[0032] 1. After the suction cup picks up the part, the squeezing component can be limited to the first squeezing position by the snap-fit ​​component, so as to avoid damaging the part while maintaining stable suction.

[0033] 2. The pressure area of ​​the pressure plate on the airbag is adjustable, thereby adjusting the suction force;

[0034] 3. The connector is rotatable, allowing for adjustment of the adsorption angle;

[0035] 4. The suction cup is detachably connected to the connector, making it replaceable and suitable for adsorbing different parts. Attached Figure Description

[0036] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0037] Figure 1 This is a schematic diagram of the structure of a vacuum suction pen provided in an embodiment of this application;

[0038] Figure 2 for Figure 1 A schematic diagram of the extrusion assembly in the vacuum suction pen shown;

[0039] Figure 3 for Figure 2 A schematic diagram of the extrusion assembly structure is shown at the extrusion assembly location;

[0040] Figure 4 for Figure 2 A schematic diagram of the extrusion assembly, reset component, and snap-fit ​​assembly at the extrusion assembly shown;

[0041] Figure 5 for Figure 4 The diagram shows the structure of the snap-fit ​​protrusion in the extrusion assembly.

[0042] Figure 6 for Figure 1 The diagram shows the internal structure of the vacuum suction pen.

[0043] Figure 7 for Figure 1 The diagram shows another angle of the vacuum pen.

[0044] Figure 8 for Figure 7 The diagram shows the structure of the connector of the vacuum suction pen.

[0045] Label Explanation:

[0046] 100. Vacuum suction pen; 110. Housing; 111. Guide hole; 121. Airbag; 122. Suction cup; 123. Connecting tube; 124. Connector; 1241. Locking hole; 130. Extrusion assembly; 131. Rotating component; 1311. Rotating protrusion; 1312. Slot; 1313. Movement clearance; 1314. Inlet; 1315. Outlet; 132. Pressure rod; 133. Pressure plate; 1331. Fixed part; 1332, expansion part; 1333, anti-slip part; 1334, guide part; 140, reset part; 150, snap-fit ​​assembly; 151, movable rod; 152, first elastic element; 153, locking post; 154, mounting cylinder; 155, second elastic element; 156, movable piece; 160, locking assembly; 161, locking post; 162, locking elastic element; 163, abutment part; 164, limiting part. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] like Figure 1 and Figure 2 As shown, this application provides a vacuum pen 100, including a housing 110 and an airbag 121 (see details). Figure 6 ), suction cup 122, pressing assembly 130, reset component 140 (see also) Figure 4 ) and card-connecting component 150.

[0050] An airbag 121 is disposed within a housing 110; a suction cup 122 is connected to one end of the housing 110 and communicates with the airbag 121 to generate negative pressure for adsorbing parts under the action of the airbag 121. A squeezing assembly 130 is movably disposed in the housing 110 and is configured to operably squeeze and release the airbag 121, thereby generating negative pressure at the suction cup 122 during the release of the airbag 121. During its movement, the squeezing assembly 130 can pass through the release position of the airbag 121; and during the movement and squeezing of the airbag 121, the squeezing assembly 130 can sequentially pass through a first squeezing position, a second squeezing position, and a third squeezing position.

[0051] A reset member 140 is disposed in the housing 110 and connected to the compression assembly 130. It provides a force that moves the compression assembly 130 toward the release position, thus restoring the compression assembly 130 to the release position and restoring the airbag 121. A latching assembly 150 is disposed in the housing 110 and is capable of latching and dislodgement from the compression assembly 130. When latched, the latching assembly 150 confines the compression assembly 130 to a first compression position.

[0052] During the process of the compression assembly 130 moving from the release position to the second compression position, the locking assembly 150 can lock onto the compression assembly 130 to limit the compression assembly 130 to the first compression position; when the compression assembly 130 moves to the third compression position, the locking assembly 150 can separate from the compression assembly 130, so that the compression assembly 130 can return to the release position under the action of the reset member 140, thereby realizing the release of the airbag 121.

[0053] Understandably, from the first compression position to the third compression position, the degree of compression of the airbag 121 by the compression component 130 gradually increases. That is, after the compression component 130 moves to the first compression position, it needs to continue to compress the airbag 121 in order for the compression component 130 to continue to move to the second compression position and the third compression position.

[0054] In actual operation, initially, the squeezing assembly 130 is in the release position under the action of the reset member 140. The operator first applies external force to move the squeezing assembly 130 from the release position to the second squeezing position. During this process, the locking assembly 150 engages with the squeezing assembly 130. Next, the operator removes the external force, and the squeezing assembly 130 moves back to the release position under the action of the reset member 140. The airbag 121 begins to recover and forms a negative pressure within the suction cup 122 to adsorb the parts. When it moves to the first squeezing position, the squeezing assembly 130 is limited and held in the first squeezing position under the action of the locking assembly 150.

[0055] After the assembly or transfer of parts is completed, the operator continues to apply external force, causing the compression assembly 130 to move from the first compression position to the third compression position. During this process, the parts adsorbed by the suction cup 122 are released, and the snap-fit ​​assembly 150 separates from the compression assembly 130. Thus, after the operator removes the external force, the compression assembly 130 can return to the release position under the action of the reset member 140, allowing the airbag 121 to fully recover.

[0056] Using the aforementioned vacuum suction pen 100, since the snap-fit ​​component 150 can snap into the squeezing component 130, during the movement of the squeezing component 130 from the second squeezing position to the release position, the squeezing component 130 is confined to the first squeezing position, so that the airbag 121 generates negative pressure in the suction cup 122 to adsorb the parts, and the airbag 121 will not completely recover, thereby avoiding excessive suction and damage to the parts; at the same time, the squeezing component 130 is held in the first squeezing position under the action of the snap-fit ​​component 150. Compared with manual pressing, this method is more stable, thereby making the suction force of the suction cup 122 on the parts more stable.

[0057] Please see Figure 2 and Figure 3 In one embodiment, the compression assembly 130 includes a rotating member 131, a pressure rod 132, and a pressure plate 133. One end of the rotating member 131 is rotatably connected to the housing 110, and the end of the rotating member 131 away from the housing 110 is connected to the pressure plate 133 via the pressure rod 132, so that the pressure plate 133 can be driven to compress and release the airbag 121 during rotation. The engaging assembly 150 can engage and disengage with the rotating member 131, thereby limiting the compression assembly 130 to a first compression position when engaged with the rotating member 131.

[0058] It is understandable that the pressure plate 133 compresses and releases the airbag 121, so the pressure plate 133 preferably moves linearly. For example, as shown in Figure 3, a guide hole 111 is provided on the side wall of the housing 110, and the pressure plate 133 slides along the guide hole 111 on the housing 110. At the same time, due to the linear movement of the pressure plate 133, the rotating member 131 rotates, so the two ends of the pressure rod 132 are hinged to the rotating member 131 and the pressure plate 133 respectively.

[0059] It can be determined that the airbag 121 is located inside the housing 110, and the rotating component 131 is rotatably connected to the outside of the housing 110. Therefore, during the process of the pressure plate 133 squeezing the airbag 121, the pressure plate 133 gradually penetrates deeper into the housing 110. At the same time, the movement of the squeezing assembly 130 includes the rotation of the rotating component 131 and the linear movement of the pressure plate 133. From the first squeezing position to the third squeezing position, the depth of the pressure plate 133 penetrating into the housing 110 gradually increases.

[0060] In one embodiment, the pressure plate 133 includes a fixing part 1331 and an expansion part 1332. The fixing part 1331 is movably connected to the housing 110, that is, it slides along the guide hole 111 in the housing 110 as described above, and the pressure rod 132 is hinged to the fixing part 1331. The expansion part 1332 is slidably connected to the fixing part 1331 to adjust the pressing area of ​​the pressure plate 133 on the airbag 121, thereby adjusting the magnitude of the negative pressure. Specifically... Figure 3 In the embodiment shown, the expansion portion 1332 is slidably disposed on the fixing portion 1331 along the length direction of the housing 110, and the expansion portion 1332 is provided with an anti-slip portion 1333 to facilitate the operator to slide the expansion portion 1332.

[0061] Furthermore, the fixing part 1331 is also provided with a guide part 1334, which extends into the guide hole 111 and can slide along the guide hole 111, thereby guiding the movement of the fixing part 1331.

[0062] Please see Figure 2 and Figure 4 In one embodiment, the snap-fit ​​assembly 150 includes a movable rod 151, a first elastic element 152, and a snap-fit ​​post 153. The movable rod 151 is slidably connected to the housing 110, and the movable rod 151 can pass through an initial position during its movement; the first elastic element 152 is disposed between the housing 110 and the movable rod 151, and is used to provide a force to hold the movable rod 151 in the initial position; a snap-fit ​​connection is made to one end of the movable rod 151.

[0063] When the movable lever 151 is in the initial position, during the process of the extrusion assembly 130 moving from the release position to the second extrusion position, the rotating member 131 can abut against the locking post 153 and push the locking post 153 to engage with the rotating member 131, thereby limiting the extrusion assembly 130 to the first extrusion position through the locking assembly 150; when the extrusion assembly 130 moves to the third extrusion position, the locking post 153 can separate from the rotating member 131, thereby allowing the extrusion assembly 130 to return to the release position under the action of the reset member 140.

[0064] Furthermore, the snap-fit ​​assembly 150 also includes a mounting cylinder 154 and a second elastic element 155. The mounting cylinder 154 is installed in the housing 110, and the movable rod 151 is slidably connected to the mounting cylinder 154. Both the first elastic element 152 and the second elastic element 155 are disposed between the mounting cylinder 154 and the movable rod 151, and the first elastic element 152 and the second elastic element 155 exert opposite forces on the movable rod 151, so that the movable rod 151 tends to remain in its initial position. Specifically... Figure 4In the described embodiment, the movable rod 151 is slidably disposed along the length direction of the housing 110, and a movable piece 156 is provided at one end of the movable rod 151 inside the mounting cylinder 154. The first elastic element 152 and the second elastic element 155 are respectively located on both sides of the movable piece 156; a retaining post 153 is provided at one end of the movable rod 151 extending out of the mounting cylinder 154. Preferably, the movable piece 156 is rectangular to prevent the movable rod 151 from rotating inside the mounting cylinder 154.

[0065] Please see Figure 4 and Figure 5 In one embodiment, the rotating member 131 is provided with a locking protrusion, and the locking protrusion is provided with a locking groove 1312. When the movable rod 151 is in the initial position, during the process of the extrusion assembly 130 moving from the release position to the second extrusion position, the locking protrusion can abut against the locking post 153 and push the movable rod 151 to slide, so that the locking post 153 moves along the locking protrusion under the action of the first elastic member 152 and enters and locks into the locking groove 1312; when the extrusion assembly 130 moves to the third extrusion position, the locking post 153 can separate from the locking protrusion.

[0066] Furthermore, the rotating member 131 is provided with a movable groove, and a snap-fit ​​protrusion is provided in the movable groove. A movable gap 1313 is formed between the snap-fit ​​protrusion and the inner wall of the movable groove. The snap-fit ​​groove 1312 is connected to the movable gap 1313. The movable gap 1313 has an inlet 1314 and an outlet 1315 that penetrate the rotating member 131.

[0067] When the movable rod 151 is in the initial position, during the process of the extrusion assembly 130 moving from the release position to the second extrusion position, the locking protrusion can push the locking post 153 through the inlet 1314 into the movable gap 1313 and lock it in the slot 1312; when the extrusion assembly 130 moves to the third extrusion position, the locking post 153 can enter the movable gap 1313 from the slot 1312, and the locking post 153 can disengage from the movable gap 1313 from the outlet 1315.

[0068] It needs to be explained that, in Figure 5In the middle, the locking post 153 can reciprocate in the left and right direction, and the first elastic member 152 can provide a force to move the locking post 153 to the left. During the process of the extrusion assembly 130 moving from the release position to the second extrusion position, the rotating member 131 rotates clockwise. At this time, the locking post 153 can abut against the locking protrusion. Moreover, under the action of the first elastic member 152, the locking post 153 will move counterclockwise along the surface of the locking protrusion until the locking post 153 enters the moving gap 1313 through the inlet 1314, and then enters and locks into the locking groove 1312, thereby limiting the extrusion assembly 130 to the first extrusion position. After the parts are assembled or transferred, an external force is applied to make the rotating rod rotate clockwise. The extrusion assembly 130 moves from the first extrusion position to the third extrusion position, so that the locking post 153 slides out from the top of the locking groove 1312 and enters the movable gap 1313, realizing the separation of the locking post 153 from the locking protrusion. Then, it disengages from the movable gap 1313 from the outlet 1315, realizing the separation of the locking post 153 from the rotating part 131.

[0069] It should be noted that during actual operation, before the locking protrusion abuts against the locking post 153, the operator presses the rotating part 131 to make it rotate against the force of the reset part 140, causing the pressure plate 133 to squeeze the airbag 121. At this time, pressing the rotating part 131 only requires overcoming the resistance of the reset part 140. After the locking protrusion abuts against the locking post 153, the locking protrusion pushes the locking post 153 to move, and the locking post 153 also provides resistance to the rotation of the rotating part 131. As the rotation continues, the locking post 153 enters from the inlet 1314 of the movable gap 1313, and then enters and locks into the locking groove 1312. When entering the locking groove 1312, the resistance of the locking post 153 to the rotating part 131 will decrease, and at the same time, under the action of the first elastic member 152, it will hit the bottom of the locking groove 1312. After hearing the impact sound, the operator can judge that the locking post 153 has entered the locking groove 1312. Next, the operator only needs to continue pressing the rotating part 131, and the rotating part 131 will continue to rotate at a certain angle, so that the extrusion assembly 130 moves to the second extrusion position.

[0070] It needs to be further explained that after the aforementioned locking pin 153 enters the locking slot 1312, the rotating part 131 rotates at a certain angle. This angle can be determined by the operator through testing, or a position mark can be engraved on the rotating shaft of the rotating part 131, such as the marks of the first pressing position, the second pressing position, and the third pressing position, to facilitate the operator's operation.

[0071] Specifically, the movable rod 151 is located on one side of the rotating member 131, and the rotating member 131 has the aforementioned movable groove on the side corresponding to the movable rod 151. The movable groove penetrates the surface of the rotating member 131 toward the pressure plate 133, that is, the movable gap 1313 penetrates the surface of the rotating member 131 toward the pressure plate 133, thereby enabling the locking pin 153 to enter the movable gap 1313 and disengage from the movable gap 1313 during the rotation of the rotating member 131.

[0072] In a preferred embodiment, the locking pin 153 is rotatably connected to the movable rod 151, thereby reducing the friction between the locking pin 153 and the rotating member 131 when the locking pin 153 moves within the movable gap 1313. Simultaneously, to ensure smoother movement of the locking pin 153 within the movable gap 1313, the surface of the locking protrusion and the inner wall of the movable groove are curved.

[0073] Please see Figure 6 In one embodiment, the vacuum suction pen 100 further includes a connecting tube 123, one end of which is connected to the air bladder 121, and the other end of which is connected to the suction cup 122. Further, the vacuum suction pen 100 also includes a connector 124, which is connected to one end of the housing 110. Both the connecting tube 123 and the suction cup 122 are connected to the connector 124, meaning the suction cup 122 communicates with the air bladder 121 through the connector 124 and the connecting tube 123. Preferably, the suction cup 122 is detachably connected to the connector 124, thereby allowing the suction cup 122 to be replaced according to the size of the part, improving the versatility of the vacuum suction pen 100.

[0074] Please see Figure 7 In one embodiment, the connector 124 is rotatably connected to the housing 110, thereby adjusting the adsorption angle of the suction cup 122. Further, the connecting tube 123 is a flexible tube to accommodate the rotation of the connector 124. Preferably, the end of the connector 124 connected to the suction cup 122 is provided with a filter structure to prevent impurities from being drawn into the airbag 121, and the impurities adsorbed on the filter structure can be cleaned after the suction cup 122 is removed, making it more convenient.

[0075] Please also refer to Figure 8 In one embodiment, the vacuum suction pen 100 further includes a locking component 160 disposed in the housing 110 and detachably connected to the connector 124 to fix the connector 124 relative to the housing 110 when connected to the connector 124, thereby fixing the connector 124 after adjusting the angle of the connector 124, i.e., adjusting the suction angle.

[0076] Furthermore, the connector 124 is provided with a plurality of locking holes 1241 spaced apart around the rotating shaft of the connector 124; the locking assembly 160 includes a locking pin 161 and a locking elastic member 162. The locking pin 161 is movably disposed on the housing 110, and the locking pin 161 can be inserted into and removed from the locking holes 1241 during its movement, so as to fix the connector 124 relative to the housing 110 when inserted into the locking hole 1241; the locking elastic member 162 is disposed between the housing 110 and the locking pin 161, and is used to provide a force for inserting the locking pin 161 into the locking hole 1241.

[0077] It should be noted that the locking elastic element 162, the first elastic element 152 and the second elastic element 155 are all springs, and the reset element 140 is a torsion spring.

[0078] In one embodiment, the locking post 161 is provided with abutment portions 163 and limiting portions 164 spaced apart along its length. A locking elastic member 162 is sleeved on the locking post 161, with one end abutting against the housing 110 and the other end abutting against the abutment portion 163. After the locking post 161 is inserted into the locking hole 1241, the limiting portion 164 abuts against the housing 110 to fix the locking post 161.

[0079] In practical applications, the abutment portion 163 is threadedly connected to the locking pin 161 to adjust its position along the length of the locking pin 161, thereby adjusting the magnitude of the force exerted by the locking elastic element 162. For example, in Figure 8 In the middle, rotating the abutment part 163 so that the abutment part 163 is close to the limiting part 164 can increase the force of the locking elastic member 162, thereby improving the locking effect of the locking pin 161 on the joint 124.

[0080] To facilitate understanding of the technical solution of this application, the operation process of the vacuum suction pen 100 in the above embodiments is described below:

[0081] Before use: First, connect the suction cup 122 of the appropriate size to the connector 124 according to the requirements. Then, pull the locking pin 161 and adjust the angle of the connector 124. After adjusting the angle, release the locking pin 161 so that it is inserted into the locking hole 1241 of the connector 124, thereby fixing the connector 124. Next, adjust the pressing area of ​​the pressure plate 133 on the airbag 121 according to the required adsorption strength. If it is necessary to increase the negative pressure, the pressing area can be increased by pulling out the extension part.

[0082] In use: an external force is applied to the rotating component 131, which rotates and drives the pressure plate 133 to press down the airbag 121; the rotating component 131 stops after the extrusion assembly 130 moves to the second extrusion position, so that the suction cup 122 is attached to the part, and then the rotating component 131 is released. The pressure plate 133 rises under the action of the reset component 140, and a negative pressure is generated in the suction cup 122 to adsorb the part, while the locking post 153 is locked in the locking groove 1312, so that the extrusion assembly 130 is kept in the first extrusion position. Next, the parts are assembled or transferred. After completion, external force is applied to the rotating part 131, causing the rotating part 131 to rotate and drive the pressure plate 133 to press down the airbag 121. The rotating part 131 stops after the extrusion assembly 130 moves to the third extrusion position. At this time, the suction cup 122 releases the parts, and the locking post 153 also disengages from the locking groove 1312. Next, the rotating part 131 is released. The rotating part 131 can be reset under the action of the reset member 140, and the extrusion assembly 130 returns to the release position.

[0083] In summary, the vacuum suction pen 100 provided in this application has at least the following advantages:

[0084] 1. After the suction cup 122 adsorbs the part, the squeezing assembly 130 can be limited to the first squeezing position by the snap-fit ​​assembly 150, so as to avoid damaging the part while maintaining stable suction.

[0085] 2. The pressing area of ​​the pressure plate 133 on the airbag 121 is adjustable, thereby achieving adjustment of the suction force;

[0086] 3. The connector 124 is rotatably mounted, thereby adjusting the adsorption angle;

[0087] 4. The suction cup 122 is detachably connected to the connector 124, so that the suction cup 122 can be replaced and thus be suitable for adsorption of different parts.

[0088] Although embodiments of this application 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 application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum pen, characterized in that, include: case; An airbag is disposed within the housing; A suction cup is attached to one end of the housing and communicates with the airbag; A compression assembly is movably disposed in the housing and configured to operablely compress and release the airbag; the compression assembly is capable of passing through a release position for releasing the airbag during its movement, and during the compression of the airbag, the compression assembly is capable of sequentially passing through a first compression position, a second compression position, and a third compression position; A reset member, disposed in the housing and connected to the pressing assembly, is used to provide a force that causes the pressing assembly to move toward the release position; A snap-fit ​​assembly is disposed in the housing, and the snap-fit ​​assembly is capable of snapping into and separating from the extrusion assembly, and when snapping into the extrusion assembly, it limits the extrusion assembly to the first extrusion position; During the movement of the extrusion assembly from the release position to the second extrusion position, the locking component can engage with the extrusion assembly; when the extrusion assembly moves to the third extrusion position, the locking component can disengage from the extrusion assembly.

2. The vacuum suction pen according to claim 1, characterized in that, The extrusion assembly includes a rotating component, a pressure rod, and a pressure plate. One end of the rotating component is rotatably connected to the housing, and the end of the rotating component away from the housing is connected to the pressure plate through the pressure rod, so as to drive the pressure plate to extrude and release the airbag during rotation. The snap-fit ​​assembly can snap into and separate from the rotating component.

3. The vacuum suction pen according to claim 2, characterized in that, The snap-fit ​​assembly includes a movable rod, a first elastic element, and a snap-fit ​​post; the movable rod is slidably connected to the housing, the first elastic element is disposed between the housing and the movable rod, and is used to provide a force to keep the movable rod in its initial position, and the snap-fit ​​post is connected to the movable rod; When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the rotating member can abut against the locking post and push the locking post to engage with the rotating member; When the extrusion assembly moves to the third extrusion position, the locking pin can separate from the rotating component.

4. The vacuum suction pen according to claim 3, characterized in that, The rotating component is provided with a snap-fit ​​protrusion, and the snap-fit ​​protrusion is provided with a snap-fit ​​groove; When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the locking protrusion can abut against the locking post and push the movable rod to slide, so that the locking post moves along the locking protrusion under the action of the first elastic member and enters and locks into the slot; When the extrusion assembly moves to the third extrusion position, the locking post can separate from the locking protrusion.

5. The vacuum suction pen according to claim 4, characterized in that, The rotating component has a movable groove, and the movable groove has a snap-fit ​​protrusion. The snap-fit ​​protrusion and the inner wall of the movable groove form a movable gap, and the snap-fit ​​groove communicates with the movable gap. The movable gap has an inlet and an outlet that penetrate the rotating component. When the movable rod is in the initial position, during the process of the extrusion assembly moving from the release position to the second extrusion position, the snap-fit ​​protrusion can push the snap pin through the inlet into the movable gap and snap into the snap slot. When the extrusion assembly moves to the third extrusion position, the locking pin can enter the movable gap from the locking slot, and the locking pin can disengage from the movable gap from the outlet.

6. The vacuum suction pen according to claim 3, characterized in that, The snap-fit ​​assembly further includes a mounting cylinder and a second elastic element. The mounting cylinder is installed in the housing, and the movable rod is slidably connected to the mounting cylinder. The first elastic element and the second elastic element are both disposed between the mounting cylinder and the movable rod, and the first elastic element and the second elastic element exert opposite forces on the movable rod, so that the movable rod tends to remain in the initial position.

7. The vacuum suction pen according to claim 2, characterized in that, The pressure plate includes a fixed part and an expansion part. The fixed part is movably connected to the housing. The pressure rod is connected to the fixed part. The expansion part is slidably connected to the fixed part to adjust the pressing area of ​​the pressure plate on the airbag.

8. The vacuum suction pen according to claim 1, characterized in that, It also includes a connector and a locking assembly, wherein the connector is rotatably connected to one end of the housing, the suction cup is connected to the connector, and the airbag communicates with the suction cup via the connector; The locking assembly is disposed on the housing and detachably connected to the connector to secure the connector relative to the housing when connected to the connector.

9. The vacuum suction pen according to claim 8, characterized in that, The connector is provided with a plurality of locking holes spaced apart around the rotating shaft of the connector; The locking assembly includes a locking pin and a locking elastic element. The locking pin is movably disposed on the housing and can be inserted into and removed from the locking hole during its movement, so as to fix the connector relative to the housing when inserted into the locking hole. The locking elastic element is disposed between the housing and the locking pin and is used to provide a force for inserting the locking pin into the locking hole.

10. The vacuum suction pen according to claim 8, characterized in that, The suction cup is detachably connected to the connector.

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