An adjustable multi-curved vacuum chuck

By using the worm gear drive and telescopic slide bar structure of the adjustable multi-curved vacuum suction cup, the problem of adsorption on objects of different shapes and sizes is solved, realizing multi-angle adsorption and length adjustment, and improving adsorption stability and versatility.

CN224429361UActive Publication Date: 2026-06-30KUNSHAN DANGTUO PNEUMATIC COMPONENTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN DANGTUO PNEUMATIC COMPONENTS CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing vacuum suction cups cannot be specifically adjusted according to the shape and surface condition of different adsorption surfaces, resulting in poor adhesion between the suction cup and the object surface, easy air leakage, and difficulty in meeting the adsorption needs of objects of different sizes and weights, affecting work efficiency and potentially damaging the adsorbed objects.

Method used

An adjustable multi-curved vacuum suction cup was designed, which realizes the adjustment of the angle and length of the suction cup body through the adjustment device and the telescopic device, including worm gear transmission and telescopic slide structure, to adapt to different working conditions and object shapes.

Benefits of technology

It enables multi-angle adsorption and gripping of the suction cup body and adapts to the adsorption of objects of different lengths, improving adsorption stability and versatility, reducing efficiency loss caused by insufficient tool adaptability, and ensuring safety and cleanliness during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of vacuum suction cups, and more particularly to an adjustable multi-curved surface vacuum suction cup. It includes: a suction cup body and a sleeve. Two sliding rods are slidably connected to the inner wall of the sleeve. Two adjusting seats are fixedly connected to the upper surface of the suction cup body. A handle is rotatably connected to the side of the two adjusting seats that are close together. An adjusting device is provided at the end of the suction cup body that is close to the sliding rods. The adjusting device includes a fixed seat, the lower surface of which is fixedly connected to the upper surface of the suction cup body. A mounting seat is fixedly connected to the arc surface of the sliding rod. A rotating rod is rotatably connected inside the mounting seat. The arc surface of the rotating rod is fixedly connected to the inside of the fixed seat. A worm gear is fixedly connected to the arc surface of the rotating rod. A worm is rotatably connected inside the mounting seat, and the worm gear meshes with the worm. The adjustable multi-curved surface vacuum suction cup provided by this utility model has the advantage of conveniently adjusting the angle of the suction cup, thereby meeting the requirements for multi-angle adsorption and gripping of objects under different working conditions.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum suction cups, and in particular to an adjustable multi-curved surface vacuum suction cup. Background Technology

[0002] A vacuum suction cup is a device that uses the principle of vacuum negative pressure to adsorb and move objects. Its core working principle is: using a vacuum pump, fan or other negative pressure equipment, the air inside the suction cup is extracted to create an air pressure difference, so that the atmospheric pressure outside the suction cup presses the object tightly against the surface of the suction cup, thereby achieving the adsorption function.

[0003] Existing technologies, such as the utility model patent with publication number CN204512154U, disclose a vacuum suction cup. The cover assembly consists of a spring-loaded cap, a hanging base, and a cover connected as a whole. The positioning surface, positioning piece, and hook groove on the cap respectively cooperate with the hook locking position and positioning surface on the hanging base, and the guide piece and positioning groove on the cover. The suction piece is connected by an anti-detachment seat, which connects the pressure spring piece, the inner liner, and the inner liner coating into a whole. The inner liner is connected by two or more elastic pieces and an elastic piece with a pull ring. A guide buckle with a liner hook is located at the central anti-detachment hole. The pressure spring piece has ventilation holes, a hook on the outer surface of the central truncated cone, and a hook groove on the wall of the through hole of the truncated cone. The inner liner is glued to form an inner liner coating. The liner hook is connected to the hook groove on the pressure spring piece to form a whole, and the hook on the pressure spring piece is engaged in the hook groove on the cap to form a whole. The hanging base can hold hanging objects and steel wire ropes or ropes, making it widely applicable and highly practical. The adsorption element is an elastic component, and it is also covered by a cover assembly, which increases the adsorption force and load-bearing capacity, improves the adsorption strength between the adsorption sheet and the adsorption surface, has a large adsorption area, long adsorption time, and sufficient elasticity.

[0004] The inventors discovered in daily use that, due to the inability to adjust the vacuum suction cup according to the shape and surface condition of different adsorption surfaces, the suction cup does not adhere well to the object's surface, easily leading to air leakage and reduced adsorption stability. Furthermore, when adsorbing objects of different sizes and weights, the lack of effective adjustment methods results in either insufficient or excessive adsorption force, affecting work efficiency, potentially damaging the adsorbed object, and failing to meet the needs of diverse application scenarios. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies.

[0006] To solve the above technical problems, this utility model provides an adjustable multi-curved vacuum suction cup, comprising: a suction cup body and a sleeve. Two sliding rods are slidably connected to the inner wall of the sleeve. Two adjusting seats are fixedly connected to the upper surface of the suction cup body. A handle is rotatably connected to the side of the two adjusting seats that are close to each other. An adjusting device is provided at the end of the suction cup body that is close to the sliding rods. The adjusting device includes a fixed seat. The lower surface of the fixed seat is fixedly connected to the upper surface of the suction cup body. A mounting seat is fixedly connected to the arc surface of the sliding rod. A rotating rod is rotatably connected inside the mounting seat. The arc surface of the rotating rod is fixedly connected to the inside of the fixed seat. A worm gear is fixedly connected to the arc surface of the rotating rod. A worm is rotatably connected inside the mounting seat. The worm gear meshes with the worm. A rotating knob is fixedly connected to one end of the worm. An annular groove is formed on one side of the mounting seat. A rotating rod is slidably connected to the inner wall of the annular groove. One end of the rotating rod is fixedly connected to one side of the rotating knob. A fixing ring is threadedly connected to the arc surface of the rotating rod.

[0007] The aforementioned components achieve the following effect: when the angle of the suction cup body needs to be adjusted, the worm gear rotates around its axis. Through the meshing transmission between the helical teeth of the worm gear and the teeth of the worm wheel, the rotational motion of the worm gear is converted into the circular motion of the worm wheel. This causes the angle of the suction cup body to deflect, thereby meeting the needs of multi-angle adsorption and gripping of objects under different working conditions.

[0008] Preferably, an anti-slip pad is fixedly connected to one side of the fixing ring, and the anti-slip pad abuts against the annular groove.

[0009] The effect achieved by the above components is to increase the friction between the fixing ring and the annular groove by using the anti-slip pad, ensuring that the suction cup body remains stable and ensuring safe use.

[0010] Preferably, a slot is provided on one side of the mounting base, the center of the slot is coaxial with the axis of rotation of the rotating rod, and a guide rod is slidably connected to the inner wall of the slot, one end of the guide rod being fixedly connected to one side of the fixed base.

[0011] The effect achieved by the above components is that the angle of the suction cup body is limited by the slot and guide rod, so as to precisely control the rotation range of the suction cup body and effectively prevent the suction cup body from leaving the working range due to excessive rotation.

[0012] Preferably, a protective sleeve is snapped onto the lower surface of the suction cup body, and the protective sleeve is adapted to the size of the lower surface of the suction cup.

[0013] The effect achieved by the above components is to ensure the cleanliness of the suction cup body when not in use, form a dustproof and waterproof physical barrier, and prevent dust particles, water stains or corrosive gases from adhering to the suction cup surface.

[0014] Preferably, the outer wall of the sleeve is provided with a telescopic device, the telescopic device includes two bases, the lower surface of the bases is fixedly connected to the outer wall of the sleeve, a rotating shaft is fixedly connected to one side of the two bases that are close to each other, a rotating plate is rotatably connected to the arc surface of the rotating shaft, a column is fixedly connected to the lower surface of the rotating plate, two fixing holes are opened on the outer wall of the sleeve, a spring is fixedly connected inside the fixing holes, one end of the spring is fixedly connected to the lower surface of the rotating plate, and a plurality of limiting holes are opened on the arc surface of the sliding rod.

[0015] The effect achieved by the above components is as follows: by using the telescopic adjustment structure composed of the sleeve and the slide bar, the suction cup body can easily adapt to the adsorption needs of objects of different lengths and positions, greatly improving the versatility and ease of operation of the suction cup body, and effectively reducing the loss of work efficiency caused by insufficient tool compatibility.

[0016] Preferably, a guide head is fixedly connected to the lower surface of the support column, and the guide head is conical.

[0017] The effect achieved by the above components is that by using the guide head to optimize the docking guidance function, the accuracy of the support column and the limiting hole is significantly improved.

[0018] Preferably, the upper surface of the rotating plate is provided with an anti-slip groove, and a plurality of anti-slip protrusions are fixedly connected inside the anti-slip groove.

[0019] The effect achieved by the above components is that the anti-slip grooves facilitate pressing the rotating plate, increase the friction of the contact surface, and effectively prevent slippage.

[0020] Compared with related technologies, the adjustable multi-curved surface vacuum chuck provided by this utility model has the following beneficial effects:

[0021] By operating the adjustment device, the angle of the suction cup body can be adjusted to meet the needs of multi-angle adsorption and gripping of objects. By turning the knob to rotate the worm gear and drive the worm wheel, the angle of the suction cup body can be adjusted, which helps to meet the needs of multi-angle adsorption and gripping of objects.

[0022] By operating the telescopic device, the length of the slide rod inside the sleeve can be adjusted. By pressing the rotating plate, the contraction and release of the spring helps to drive the column to abut and separate from the limiting hole, thereby adjusting the length of the slide rod inside the sleeve. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of an adjustable multi-curved vacuum chuck provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the regulating device.

[0025] Figure 3 for Figure 2 The diagram shows the internal structure of the mounting base;

[0026] Figure 4 for Figure 2 The enlarged structural diagram at point A is shown below;

[0027] Figure 5 for Figure 1 The diagram shows the structure of the telescopic device.

[0028] Figure 6 for Figure 1 The diagram shows the disassembled structure of the telescopic device.

[0029] The following are the labeling elements in the diagram: 1. Suction cup body; 2. Slide rod; 3. Sleeve; 4. Adjustment device; 401. Fixed base; 402. Mounting base; 403. Rotating rod; 404. Worm gear; 405. Worm; 406. Rotating knob; 407. Annular groove; 408. Rotating rod; 409. Fixed ring; 410. Anti-slip pad; 411. Groove; 412. Guide rod; 413. Protective sleeve; 5. Telescopic device; 51. Base; 52. Rotating shaft; 53. Rotating plate; 54. Column; 55. Limiting hole; 56. Fixing hole; 57. Spring; 58. Anti-slip groove; 59. Guide head; 6. Adjustment seat; 7. Handle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 4 The present invention provides an adjustable multi-curved vacuum suction cup, comprising: a suction cup body 1 and a sleeve 3. Two slide rods 2 are slidably connected to the inner wall of the sleeve 3. Two adjusting seats 6 are fixedly connected to the upper surface of the suction cup body 1. A handle 7 is rotatably connected to the side of the two adjusting seats 6 that are close to each other. An adjusting device 4 is provided at the end of the suction cup body 1 that is close to the slide rods 2. A telescopic device 5 is provided on the outer wall of the sleeve 3.

[0033] In the embodiments of this utility model, please refer to Figure 2 , Figure 3 and Figure 4The adjusting device 4 includes a fixed base 401, the lower surface of which is fixedly connected to the upper surface of the suction cup body 1. A mounting base 402 is fixedly connected to the arc surface of the slide rod 2. A rotating rod 403 is rotatably connected inside the mounting base 402. The arc surface of the rotating rod 403 is fixedly connected to the inside of the fixed base 401. A worm gear 404 is fixedly connected to the arc surface of the rotating rod 403. A worm 405 is rotatably connected inside the mounting base 402. The worm gear 404 meshes with the worm 405. A rotating knob 406 is fixedly connected to one end of the worm 405. An annular groove 407 is provided on one side of the mounting base 402. A rotating rod 408 is slidably connected to the inner wall of the annular groove 407. One end of the rotating rod 408 is fixedly connected to one side of the rotating knob 406. A retaining ring 409 is threadedly connected to the arc surface of the rotating rod 408. When the angle of the suction cup body 1 needs to be adjusted, the worm gear 405 rotates around its axis. Through the meshing transmission between the helical teeth of the worm gear 405 and the teeth of the worm wheel 404, the rotational motion of the worm gear 405 is converted into the circular motion of the worm wheel 404. This causes the angle of the suction cup body 1 to deflect, thereby meeting the needs of multi-angle adsorption and gripping of objects under different working conditions. An anti-slip pad 410 is fixedly connected to one side of the fixing ring 409, and the anti-slip pad 410 abuts against the annular groove 407. This increases the friction between the fixing ring 409 and the annular groove 407 using the anti-slip pad 410, ensuring the suction cup body 1 remains stable and guaranteeing safety during use. A slot 411 is opened on one side of the mounting base 402. The center of the slot 411 is coaxial with the axis of rotation of the rotating rod 403. A guide rod 412 is slidably connected to the inner wall of the slot 411, and one end of the guide rod 412 is fixedly connected to one side of the fixing base 401. The groove 411 and guide rod 412 are used to limit the angle of the suction cup body 1, thereby precisely controlling the rotation range of the suction cup body 1 and effectively preventing the suction cup body 1 from falling out of the working range due to excessive rotation. A protective sleeve 413 is snapped onto the lower surface of the suction cup body 1, and the protective sleeve 413 is adapted to the size of the lower surface of the suction cup body 1. This ensures the cleanliness of the suction cup body 1 when not in use, forming a dustproof and waterproof physical barrier to prevent dust particles, water stains, or corrosive gases from adhering to the suction cup surface.

[0034] In the embodiments of this utility model, please refer to Figure 5 and Figure 6The telescopic device 5 includes two bases 51. The lower surface of the bases 51 is fixedly connected to the outer wall of the sleeve 3. A rotating shaft 52 is fixedly connected to one side of the two bases 51 that is close to each other. A rotating plate 53 is rotatably connected to the arc surface of the rotating shaft 52. A column 54 is fixedly connected to the lower surface of the rotating plate 53. Two fixing holes 56 are opened on the outer wall of the sleeve 3. A spring 57 is fixedly connected inside the fixing holes 56. One end of the spring 57 is fixedly connected to the lower surface of the rotating plate 53. Several limiting holes 55 are opened on the arc surface of the slide rod 2. The telescopic adjustment structure formed by the sleeve 3 and the slide rod 2 allows the suction cup body 1 to adapt to the adsorption needs of objects of different lengths and positions, greatly improving the versatility and ease of operation of the suction cup body 1, and effectively reducing the loss of work efficiency caused by insufficient tool adaptability. A guide head 59 is fixedly connected to the lower surface of the column 54. The guide head 59 is conical. By utilizing the guide head 59 to optimize the docking guidance function, the accuracy of the connection between the support column 54 and the limiting hole 55 is significantly improved. The upper surface of the rotating plate 53 is provided with an anti-slip groove 58, and several anti-slip protrusions are fixedly connected inside the anti-slip groove 58. This allows for easy pressing of the rotating plate 53 using the anti-slip groove 58, increasing the friction of the contact surface and effectively preventing slippage.

[0035] The working principle of the adjustable multi-curved vacuum suction cup provided by this utility model is as follows: When the suction cup body 1 is adjusted by the exhaust valve to adsorb and grasp objects, and in order to better adsorb objects and adapt to different angles, the adjustment device 4 is required. First, rotate the rotary knob 406. Rotating the rotary knob 406 drives the worm gear 405 to rotate. Rotating the worm gear 405 drives the worm wheel 404 to rotate. Rotating the worm wheel 404 drives the fixed seat 401 to rotate along the groove 411 with the help of the guide rod 412. Rotating the fixed seat 401 drives the suction cup body 1 to rotate. When the suction cup body 1 rotates to a suitable angle, then rotate the fixed ring 409 connected by the arc surface thread of the rotating rod 408 to make the fixed ring 409 abut against the annular groove 407. At this time, the anti-slip pad 410 fixed on one side of the fixed ring 409 can increase the friction between the fixed ring 409 and the annular groove 407, prevent the worm wheel 404 from rotating, ensure that the suction cup body 1 remains stable, and ensure safety during use.

[0036] When using the suction cup body 1 to accommodate objects of different lengths, and requiring the use of the telescopic device 5, first press the anti-slip groove 58 to make the rotating plate 53 rotate along the rotating shaft 52. At this time, the spring 57 contracts, and the column 54 rises out of the limiting hole 55. After pulling out the slide rod 2 inside the sleeve 3 and moving the slide rod 2 to the appropriate position, release the anti-slip groove 58 when the slide rod 2 has moved to the appropriate position. The contracted spring 57 is released and pushes the rotating plate 53 to rotate along the rotating shaft 52, so that the column 54 is locked back into the limiting hole 55. At this time, the guide head 59 at one end of the column 54 can increase the accuracy between the column 54 and the limiting hole 55.

[0037] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable multi-curved surface vacuum chuck, characterized by, include: The suction cup body (1) and sleeve (3) are provided. Two sliding rods (2) are slidably connected to the inner wall of the sleeve (3). Two adjusting seats (6) are fixedly connected to the upper surface of the suction cup body (1). A handle (7) is rotatably connected to the side of the two adjusting seats (6) that are close to each other. An adjusting device (4) is provided at the end of the suction cup body (1) that is close to the sliding rods (2). The adjusting device (4) includes a fixed seat (401). The lower surface of the fixed seat (401) is fixedly connected to the upper surface of the suction cup body (1). A mounting seat (402) is fixedly connected to the arc surface of the sliding rod (2). A rotating rod (403) is rotatably connected inside the mounting seat (402). The arc surface of the rotating rod (403) is fixedly connected to the interior of the fixed base (401). The arc surface of the rotating rod (403) is fixedly connected to the worm gear (404). The interior of the mounting base (402) is rotatably connected to the worm (405). The worm gear (404) meshes with the worm (405). One end of the worm (405) is fixedly connected to the rotating knob (406). An annular groove (407) is provided on one side of the mounting base (402). The inner wall of the annular groove (407) is slidably connected to the rotating rod (408). One end of the rotating rod (408) is fixedly connected to one side of the rotating knob (406). The arc surface of the rotating rod (408) is threadedly connected to the fixing ring (409).

2. The adjustable multi-curved surface vacuum chuck according to claim 1, characterized in that, An anti-slip pad (410) is fixedly connected to one side of the fixing ring (409), and the anti-slip pad (410) abuts against the annular groove (407).

3. The adjustable multi-curved surface vacuum chuck according to claim 1, characterized in that, The mounting base (402) has a slot (411) on one side. The center of the slot (411) is coaxial with the axis of rotation of the rotating rod (403). A guide rod (412) is slidably connected to the inner wall of the slot (411). One end of the guide rod (412) is fixedly connected to one side of the fixed base (401).

4. The adjustable multi-curved surface vacuum chuck according to claim 1, characterized in that, A protective sleeve (413) is snapped onto the lower surface of the suction cup body (1), and the protective sleeve (413) is adapted to the size of the lower surface of the suction cup body (1).

5. The adjustable multi-curved surface vacuum chuck according to claim 1, characterized in that, The outer wall of the sleeve (3) is provided with a telescopic device (5). The telescopic device (5) includes two bases (51). The lower surface of the base (51) is fixedly connected to the outer wall of the sleeve (3). A rotating shaft (52) is fixedly connected to one side of the two bases (51) that are close to each other. A rotating plate (53) is rotatably connected to the arc surface of the rotating shaft (52). A column (54) is fixedly connected to the lower surface of the rotating plate (53). Two fixing holes (56) are opened on the outer wall of the sleeve (3). A spring (57) is fixedly connected inside the fixing hole (56). One end of the spring (57) is fixedly connected to the lower surface of the rotating plate (53). A number of limiting holes (55) are opened on the arc surface of the slide rod (2).

6. The adjustable multi-curved surface vacuum chuck according to claim 5, characterized in that, The lower surface of the support column (54) is fixedly connected to a guide head (59), which is conical in shape.

7. An adjustable multi-curved surface vacuum chuck according to claim 5, characterized in that, The upper surface of the rotating plate (53) is provided with an anti-slip groove (58), and a number of anti-slip protrusions are fixedly connected inside the anti-slip groove (58).