A sucker-type transporter with large suction force

Abstract

The present invention relates to a sucker-type transporter with a large suction force. The handle is fixedly connected to the sucker. The movable pull handle assembly is arranged between the handle and the sucker. The middle part of the sucker is fixedly connected to the lower part of the movable pull handle assembly. The bottom of the sucker is provided with a circular adsorption groove and an outer ring adsorption groove. The circular adsorption groove communicates with an exhaust passage, and a one-way exhaust valve is arranged at the outer end of the exhaust passage. A first air sealing ring is arranged between the outer ring adsorption groove and the circular adsorption groove. When the sucker is attached to the adsorption plane and the movable pull handle assembly drives the middle part of the sucker to move up and down, the first air sealing ring fits with the adsorption plane to form a check valve structure, and the air in the outer ring adsorption groove flows unidirectionally into the circular adsorption groove between the first air sealing ring and the adsorption plane. After each cycle of the middle part of the sucker moving up and down, the air in the circular adsorption groove and the outer ring adsorption groove will be less, so the vacuum degree is further improved, and the adsorption force is correspondingly increased, meeting the use requirements for transporting heavy objects.

Description

Technical Field

[0001] The present invention relates to a handling tool, and more specifically to a suction cup type transporter with a large suction force. Background Art

[0002] A vacuum suction cup is a common article that uses atmospheric pressure to fasten the suction cup to a flat surface. The internal structure of the vacuum suction cup is relatively common. A suction pad at the bottom is pulled up by a pull rod to form a certain degree of vacuum in the suction cup, so that the suction cup is fixed on the flat surface. When it needs to be disassembled, the pull rod is pushed down to eliminate the vacuum degree, and the suction cup can be detached from the flat surface. The suction cup structure can be applied to transporters for products on flat surfaces, such as transporters for glass and tiles. Chinese Patent ZL201420229819.0 discloses a suction cup type hand-held pliers. A pull handle is arranged between the handle and the suction cup. The pull handle is connected to the suction cup through two pull handles. The hand holds the handle, and the finger pulls the pull handle. The pull handle then pulls up the suction cup through the pull handle to form a vacuum degree to fix the veneer stone. Chinese Patent ZL201810783971.6 discloses a hand-held suction cup, which pulls up a bowl-shaped component inside through a pull ring member to form a negative pressure between the suction cup pad and the surface of the object to be transported, thereby forming an adsorption force. The above structures generate a vacuum degree by pulling up the pull handle / pull ring with the finger. When released, the vacuum degree will decrease. The vacuum degree generated by one pull-up is limited, and there is still gas in the adsorption cavity. The adsorption force that can be generated is relatively small, and it can only be applied to handling scenarios with relatively light weights and needs to be improved. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above defects of the prior art and provide a suction cup type transporter with a large suction force, which increases the adsorption force by increasing the vacuum degree to meet the use requirements.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A suction cup type transporter with a large suction force, which includes a handle, a suction cup and a movable pull handle assembly. The handle is fixedly connected to the suction cup. The movable pull handle assembly is arranged between the handle and the suction cup. The middle part of the suction cup is fixedly connected to the lower part of the movable pull handle assembly. The movable pull handle assembly is used to drive the middle part of the suction cup to move up and down to control the vacuum degree of the suction cup. A circular adsorption groove and an outer ring adsorption groove are arranged at the bottom of the suction cup. The circular adsorption groove is arranged in the middle of the outer ring adsorption groove. The circular adsorption groove communicates with an exhaust passage. A one-way exhaust valve is arranged at the outer end of the exhaust passage. A first air sealing ring is arranged between the outer ring adsorption groove and the circular adsorption groove. The circular adsorption groove and the outer ring adsorption groove are separated by the first air sealing ring. When the suction cup is attached to the adsorption plane and the movable pull handle assembly drives the middle part of the suction cup to move up and down, the first air sealing ring fits with the adsorption plane to form a check valve structure, and the air in the outer ring adsorption groove flows unidirectionally into the circular adsorption groove through the space between the first air sealing ring and the adsorption plane.

[0005] The beneficial effects of the present invention compared with the prior art are as follows: The adsorption area of the suction cup is divided into a circular adsorption groove and an outer ring adsorption groove. The circular adsorption groove is provided with a one-way exhaust duct. The first air-sealing ring separates the circular adsorption groove from the outer ring adsorption groove. In the use scenario, when the suction cup is attached to the external plane and the movable handle assembly drives the middle part of the suction cup to move upward, the first air-sealing ring fits with the adsorption plane to form a check valve structure, and the air in the outer ring adsorption groove flows unidirectionally into the circular adsorption groove through the space between the first air-sealing ring and the external plane. When the suction cup is attached to the external plane and the movable handle assembly drives the middle part of the suction cup to move downward, the air in the circular adsorption groove is squeezed, but the check valve structure formed by the first air-sealing ring and the adsorption plane blocks the air in the circular adsorption groove from flowing back to the outer ring adsorption groove. Therefore, the air in the circular adsorption groove can be discharged through the exhaust duct. After each cycle of the middle part of the suction cup moving upward and downward, the air in the circular adsorption groove and the outer ring adsorption groove will be less, so the vacuum degree is further improved, and the adsorption force is correspondingly increased, meeting the use requirements for handling heavy objects, expanding the applicable scenarios of the transporter, and being beneficial to enhancing the product competitiveness.

[0006] In one aspect, a pull rod head passes through the middle of the suction cup upward, and the pull rod head is fixedly connected to the lower part of the movable handle assembly. The exhaust duct is arranged in the pull rod head. The suction cup is divided into a thinner inner circular part and a thicker outer ring part. The outer ring part is arranged around the inner circular part, and the outer ring part and the inner circular part are integrated. The circular adsorption groove corresponds to the inner circular part, and the outer ring adsorption groove corresponds to the outer ring part. An annular reinforcing sheet for improving the rigidity of the outer ring part is embedded in the outer ring part. The annular reinforcing sheet extends along the circumferential direction of the outer ring part. The annular reinforcing sheet is provided with an inner threaded cylinder, and a screw screwed into the inner threaded cylinder fixedly connects the handle to the outer ring part of the suction cup. The outer ring part is provided with an air inlet. The upper end opening of the air inlet faces the handle, and the lower end opening communicates with the outer ring adsorption groove. The upper end of the air inlet is blocked by a rubber plug. The rubber plug is fixed to the lower end of a control rod. The upper end of the control rod passes through the handle. A vertical compression spring is sleeved outside the control rod. The upper end of the vertical compression spring abuts against the inside of the handle, and the lower end abuts against the shoulder on the outer wall of the control rod.

[0007] In one aspect, the inner side surface of the first air-sealing ring facing the circular adsorption groove is a vertical surface, and the outer side surface of the first air-sealing ring transitions to the bottom edge of the inner side surface through a convex arc surface.

[0008] In one aspect, a first peripheral edge seal is provided at the outer edge of the outer ring adsorption groove, and the height of the first air sealing ring is 0.5 mm lower than the height of the first peripheral edge seal. The groove surface of the outer ring adsorption groove is located between the first peripheral edge seal and the first air sealing ring, and a plurality of annular grooves are evenly distributed on the groove surface. The centers of the annular grooves are located on the central axis of the suction cup, and adjacent annular grooves are connected through radial grooves. A second peripheral edge seal with a gradually decreasing height and a transition slope are also provided between the groove surface of the outer ring adsorption groove and the first peripheral edge seal. The height of the second peripheral edge seal is less than the height of the first peripheral edge seal. A plurality of radially wedged grooves evenly distributed in the circumferential direction are provided in the area between the largest annular groove on the groove surface and the transition slope, and the radially wedged grooves are connected to the largest annular groove on the groove surface. A second air sealing ring is provided between the groove surface of the outer ring adsorption groove and the first air sealing ring, and the height of the second air sealing ring is less than the height of the first air sealing ring; the inner side surface of the second air sealing ring facing the first air sealing ring is a vertical surface, and the outer side surface of the second air sealing ring is transitioned to the bottom edge of the inner side surface of the second air sealing ring through a convex arc surface. The arc surface of the second air sealing ring is smoothly transitioned to the side wall of the smallest annular groove.

[0009] In one aspect, a downward pressure spring is provided inside the handle. The upper end of the downward pressure spring abuts against the inner side of the handle, and the lower end abuts against the upper part of the movable pulling handle assembly. The downward pressure spring is used to provide a driving force for the movable pulling handle assembly to move downward.

[0010] In one aspect, a movable cross plate that can be translated is provided inside the handle. The translation direction of the movable cross plate is perpendicular to the moving direction of the movable pulling handle assembly. The movable pulling handle assembly is provided with a tongue, and a clamping plate corresponding to the tongue is provided on the movable cross plate. When the movable pulling handle assembly drives the middle part of the suction cup to move upward to a certain position in the stroke, the movable pulling handle assembly and the movable cross plate are clamped and fixed through the tongue and the clamping plate. The movable pulling handle assembly includes a movable handle, a U-shaped member and a lower beam. The tongue is provided on the movable handle and the tongue faces upward; the U-shaped member includes a cross arm and two parallel vertical arms. The cross arm is respectively connected to the two vertical arms. The movable handle is fixedly connected to the two vertical arms of the U-shaped member. The cross arm passes through the movable handle, and both ends of the lower beam are fixedly connected to the ends of the two vertical arms respectively. The middle of the lower beam is fixedly connected to the middle part of the suction cup; the lower end of the downward pressure spring abuts against the cross arm. A lever is provided inside the handle. The lever is provided at one end of the movable cross plate. The lever is used to push the movable cross plate from one end to the other end to translate until the movable pulling handle assembly is disengaged from the movable cross plate. A supporting position is provided on the lever. The supporting position is used to support one end of the movable cross plate. The other end of the movable cross plate is inserted into a vertical plate through hole of the handle. A horizontal compression spring is provided at the other end of the movable cross plate. One end of the horizontal compression spring abuts against the vertical plate of the handle, and the other end abuts against the movable cross plate. The horizontal compression spring is used to push the movable cross plate towards the lever. The inner end of the lever is hinged to the handle. A short arm is provided at the inner end of the lever, and a rubber plug is fixed on the short arm. The rubber plug is used to seal an air inlet of the suction cup. The air inlet is communicated with the outer ring adsorption groove; when the lever rotates towards the movable cross plate to a certain angle, the rubber plug is disengaged from the air inlet.

[0011] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. Description of the Drawings

[0012] Figure 1 It is a three-dimensional assembly view of the carrier of the present invention.

[0013] Figure 2 It is an exploded view of the carrier of the present invention.

[0014] Figure 3 It is a cross-sectional view of the carrier of the present invention.

[0015] Figure 4 It is a bottom view of the movable handle assembly of the carrier of the present invention.

[0016] Figure 5 It is a cross-sectional view of the carrier of the present invention (when the movable handle is clamped with the movable cross plate).

[0017] Figure 6 It is a bottom view of the carrier of the present invention.

[0018] Figure 7 It is a cross-sectional view of the carrier of other embodiments of the present invention. Detailed Description of the Preferred Embodiment

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] An embodiment of the present invention is a suction cup type carrier, and its specific structure is as Figure 1-7 shown.

[0022] As Figure 1 shown is a three-dimensional assembly view of the suction cup type carrier. As Figure 1 shown, the suction cup type carrier includes a handle 10, a suction cup 20 and a movable handle assembly 30. The handle 10 is arranged above the suction cup 20, and the handle 10 and the suction cup 20 are fixedly connected by 4 screws 11. And the movable handle assembly 30 is arranged between the handle 10 and the suction cup 20. As Figure 2As shown, the middle part of the suction cup 20 is fixedly connected to the lower part of the movable handle assembly 30. The movable handle assembly 30 can drive the middle part of the suction cup 20 to move up and down to control the vacuum degree of the suction cup 20. When the middle part of the suction cup 20 moves upward, the vacuum degree between the suction cup 20 and the adsorbed surface increases, thus generating an adsorption force; when the middle part of the suction cup 20 moves downward, the vacuum degree between the suction cup 20 and the adsorbed surface decreases, and thus the adsorption force gradually decreases. A movable cross plate 40 that can be translated is provided in the handle 10. When the movable handle assembly 30 drives the middle part of the suction cup 20 to move upward to a certain position in the upward movement stroke, the movable handle assembly 30 forms a snap connection and fixation with the movable cross plate 40. At this time, even without an external force, the movable handle assembly 30 will not automatically return to the initial position, and the generated vacuum degree will not disappear. Therefore, the adsorption force can be maintained, and a long-term adsorption force can be provided, meeting the handling use requirements.

[0023] As Figure 2 shown, the moving direction (A-A direction) of the movable handle assembly 30 is perpendicular to the translation direction (B-B direction) of the movable cross plate 40. A tongue 311 is provided on the movable handle assembly 30, and a clamping plate 401 corresponding to the tongue 311 is provided on the movable cross plate 40. When the movable handle assembly 30 moves upward until the tongue 311 forms a snap connection with the clamping plate 401, the movable handle assembly 30 forms a relative fixation with the movable cross plate 40, that is, the movable handle assembly 30 is relatively fixed relative to the handle 10. Specifically, as Figure 2 , 3 shown, the movable handle assembly 30 includes a movable handle 31 and a C-shaped member 32. The mutually parallel tongues 311 are provided on the movable handle 31 and all the tongues 311 face upward. The movable handle 31 can be integrally formed of a plastic material, and the C-shaped member 32 can be made of a metal material, such as iron, aluminum alloy, etc. A finger-gripping groove 312 is provided on the lower surface of the movable handle 31 to improve the comfort and stability when the fingers grip. The C-shaped member 32 includes a cross arm 321 and two mutually parallel vertical arms 322. The cross arm 321 is respectively connected to the two vertical arms 322, and the cross arm 321 and the two vertical arms 322 are integrally formed. The cross arm 321 transversely penetrates into the movable handle 31, and the two vertical arms 322 are respectively placed outside the side walls on both sides of the movable handle 31, and the movable handle 31 is fixedly connected to the two vertical arms 322 of the C-shaped member 32. Specifically, a protrusion 313 is provided on the side wall of the movable handle 31, and a corresponding through hole 323 is provided on the vertical arm 322. The protrusion 313 is inserted into the through hole 323, thereby realizing the positioning of the C-shaped member 32 on the movable handle 31. In addition, as Figure 2 , 3As shown, there are two parallel downward pressure springs 12 inside the handle 10, and the downward pressure springs 12 provide the driving force for the movable handle assembly 30 to move downward. The upper ends of the downward pressure springs 12 are sleeved outside the positioning cylinder 13 of the handle 10 and abut against the inner side of the handle 10, while the lower ends abut against the upper part of the movable handle assembly 30, on the cross arm 321 of the U-shaped member 32, and moreover, the downward pressure springs 12 all penetrate through the movable cross plate 40. When the movable cross plate 40 is translated until the latch plate 401 is disengaged from the engagement constraint with the tongue 311, the downward pressure springs 12 will push the entire movable handle assembly 30 downward to enable the movable handle assembly 30 to quickly return to its initial position.

[0024] As Figure 3 shown, the movable handle assembly 30 further includes a lower beam 33 and a circular cover plate 34. The cover plate 34 mainly functions as a cover. The lower beam 33 can be made of a metal material, such as iron, aluminum alloy, etc. The two ends of the lower beam 33 are respectively inserted into the ends of the two vertical arms 322 and form a fixed connection. The lower beam 33 is fixed below the cover plate 34. Specifically, as Figure 4 shown, there are two pairs of L-shaped support blocks 341 below the cover plate 34. Each pair has two relatively arranged L-shaped support blocks 341. The lower beam 33 passes through between each pair of L-shaped support blocks 341. The lower beam 33 is supported by the two pairs of L-shaped support blocks 341 and the lower beam 33 is in close contact with the bottom surface of the cover plate 34.

[0025] As Figure 3 shown, a fixed connection is formed between the middle of the lower beam 33 and the middle part of the suction cup 20. A pull rod head 21 for controlling the vacuum degree of the suction cup 20 passes upward through the middle of the suction cup 20. The pull rod head 21 passes through the middle hole of the lower beam 33, and a fastening nut 35 is screwed onto the pull rod head 21. By tightening the fastening nut 35, the lower beam 33 can be fixedly connected to the pull rod head 21. As Figure 3 shown, during use, when the movable handle 31 is lifted with a finger, the movable handle 31 drives the lower beam 33 to move upward through the U-shaped member 32. The lower beam 33 drives the middle part of the suction cup 20 to move upward until the tongue 311 passes over the latch plate 401 and then the tongue 311 forms a snap connection with the latch plate 401, becoming as Figure 5 shown in the state, at this time the movable handle assembly 30 remains stationary, and the adsorption force generated by the suction cup 20 can also be maintained.

[0026] As Figure 2 、 3As shown, a lever 50 is provided inside the handle 10. The top end of the lever 50 passes through above the handle 10 for operation. The inner end of the lever 50 is hinged to the handle 10 through a pin shaft 54. Therefore, when the lever 50 is toggled, the lever 50 actually rotates relative to the handle 10. The lever 50 is provided at one end of the movable cross plate 40, and the lever 50 is used to push the movable cross plate 40 from one end to translate to the other end until the movable handle assembly 30 is disengaged from the clamping connection with the movable cross plate 40. A supporting position 51 is provided on the lever 50, and the supporting position 51 supports one end of the movable cross plate 40, while the other end of the movable cross plate 40 is inserted into a through hole 141 of a vertical plate 14 of the handle 10. And a horizontal compression spring 41 is provided in the hollowed-out position at the other end of the movable cross plate 40. One end of the horizontal compression spring 41 abuts against the vertical plate 14 of the handle 10, and the other end abuts against the movable cross plate 40. The axial direction of the horizontal compression spring 41 is parallel to the translation direction of the movable cross plate 40. As Figure 5 As shown, when an external force is applied to the top end of the lever 50 to toggle it to the left, the lever 50 will push the movable cross plate 40 to the left, and the horizontal compression spring 41 is further compressed until the tongue 311 is disengaged from the clamping constraint of the clamping plate 401. At this time, the downward pressure spring 12 will push the entire movable handle assembly 30 downward. After releasing the external force on the lever 50, the restoring force of the horizontal compression spring 41 will push the movable cross plate 40 towards the lever 50, so that the movable cross plate 40 and the lever 50 both return to their initial positions.

[0027] As Figure 2 , 3 As shown, the suction cup 20 is divided into a thinner inner circular part 201 and a thicker outer ring part 202. The outer ring part 202 is provided around the inner circular part 201, and the outer ring part 202 and the inner circular part 201 are integral. As Figure 3 As shown, an embedded flat plate 22 is provided in the inner circular part 201, and a pull rod head 21 for controlling the vacuum degree of the suction cup 20 passes through upward from the middle of the inner circular part 201. The lower part of the movable handle assembly 30 is fixedly connected to the pull rod head 21. The pull rod head 21 is vertically connected to the embedded flat plate 22, and the pull rod head 21 and the embedded flat plate 22 can be integrally formed by a metal material (such as iron, aluminum alloy, etc.). As Figure 3 As shown, a ring-shaped reinforcing piece 23 is embedded in the outer ring part 202. The ring-shaped reinforcing piece 23 extends along the circumferential direction of the outer ring part 202, that is, the central axis of the ring-shaped reinforcing piece 23 coincides with the central axis of the outer ring part 202. The ring-shaped reinforcing piece 23 can be made of metal, such as iron, aluminum alloy, etc. The ring-shaped reinforcing piece 23 is provided with 4 evenly distributed internal threaded cylinders 231 ( Figure 2) The screw 11 screwed into the internal thread cylinder 231 fixedly connects the handle 10 to the outer ring part 202 of the suction cup 20. The annular reinforcing piece 23 improves the rigidity of the outer ring part 202, and the handle 10 is directly connected to the annular reinforcing piece 23 through the screw 11. Therefore, the rigidity of the whole device is improved, and when the suction cup 20 adsorbs on the external surface, the force applied to the handle 10 is not likely to cause deformation of the outer ring part 202 of the suction cup 20, improving the adsorption stability.

[0028] As Figure 3 shown, a circular adsorption groove 204 and an outer ring adsorption groove 205 are provided at the bottom of the suction cup 20, and the circular adsorption groove 204 is arranged in the middle of the outer ring adsorption groove 205. The circular adsorption groove 204 corresponds to the inner circular part 201, and the outer peripheral adsorption groove 205 corresponds to the outer ring part 202. The air inlet 203 communicates with the outer peripheral adsorption groove 205. The circular adsorption groove 204 communicates with an exhaust passage 211 through the middle hole 2011 of the inner circular part 201, and a one-way exhaust valve 60 is arranged at the outer end of the exhaust passage 211. Specifically, as Figure 3 shown, the exhaust passage 211 is arranged in the pull rod head 21. The fastening nut 35 and the valve core 25 form the one-way exhaust valve 60. The opening 351 of the fastening nut 35 is the air port of the one-way exhaust valve 60, and the valve core 25 is placed in the space between the fastening nut 35 and the outer end of the pull rod head 21. When the suction cup 20 is attached to the adsorption plane 90 and the inner circular part 201 of the suction cup 20 bulges upward, the valve core 25 will block the outlet of the exhaust passage 211 downward.

[0029] As Figure 3 、 6 shown, a first air sealing ring 206 is provided between the outer peripheral adsorption groove 205 and the circular adsorption groove 204, and the circular adsorption groove 204 and the outer peripheral adsorption groove 205 are separated by the first air sealing ring 206. The inner side surface 2061 of the first air sealing ring 206 facing the circular adsorption groove 204 is a vertical surface, and the outer side surface of the first air sealing ring 206 transitions to the bottom edge of the inner side surface 2061 through the convex arc surface 2062. A first outer peripheral sealing edge 207 is provided at the outer edge of the outer peripheral adsorption groove 205, and the height of the first air sealing ring 206 is 0.5 mm lower than the height of the first outer peripheral sealing edge 207. Both the first air sealing ring 206 and the first outer peripheral sealing edge 207 are integrally formed with the suction cup 20, and the suction cup 20 is made of a flexible plastic material.

[0030] As Figure 6 shown, the groove surface 2050 of the outer peripheral adsorption groove 205 is located between the first outer peripheral sealing edge 207 and the first air sealing ring 206. Four annular grooves 2051 with a depth of 0.5 mm are evenly distributed on the groove surface 2050. The centers of the annular grooves 2051 are on the central axis of the suction cup 20, and the adjacent annular grooves 2051 are communicated through the radial grooves 2052. In addition, as Figure 6As shown, between the groove surface 2050 of the outer peripheral adsorption groove 205 and the first outer peripheral edge seal 207, there are also provided a second outer peripheral edge seal 2071 with a gradually decreasing height and a transition slope 2072. The height of the second outer peripheral edge seal 2071 is less than the height of the first outer peripheral edge seal 207. In the region between the maximum annular groove 2051 of the groove surface 2050 and the transition slope 2072, there are provided a number of radially wedge-shaped grooves 2053 evenly distributed in the circumferential direction, and the radially wedge-shaped grooves 2053 communicate with the maximum annular groove 2051 of the groove surface 2050. The outer height of the bottom surface of the first outer peripheral edge seal 207 is higher than the inner height, the outer height of the bottom surface of the second outer peripheral edge seal 2071 is lower than the inner height of the bottom surface of the first outer peripheral edge seal 207, and the outer height of the bottom surface of the second outer peripheral edge seal 2071 is higher than the inner height.

[0031] In addition, as Figure 6 shown, between the groove surface 2050 of the outer ring adsorption groove 205 and the first air sealing ring 206, there is provided a second air sealing ring 208, and the height of the second air sealing ring 208 is less than the height of the first air sealing ring 206. The inner side surface 2081 of the second air sealing ring 208 facing the first air sealing ring 206 is a vertical surface, and the outer side surface of the second air sealing ring 208 transitions to the bottom edge of the inner side surface 2081 through an outwardly convex arc surface 2082. Moreover, the arc surface 2081 of the second air sealing ring 208 smoothly transitions to the side wall of the minimum annular groove 2051.

[0032] As Figure 2 、 3 shown, the outer ring portion 202 is provided with an air inlet 203. The upper end opening of the air inlet 203 faces the handle 10, and the lower end opening communicates with the outer ring adsorption groove 205. The upper end of the air inlet 203 is blocked by a rubber plug 53, and the rubber plug 53 is fixed to the lower end of a control rod 55. The upper end of the control rod 55 passes through the round hole 102 of the handle 10 and a end cap 551 is also fixed to the upper end for pulling. A vertical compression spring 56 is sleeved outside the control rod 55. The upper end of the vertical compression spring 56 abuts against the inner wall of the handle 10, and the lower end abuts against the shoulder of the outer wall of the control rod 55. The downward pressure of the vertical compression spring 56 is applied to the control rod 55, and the control rod 55 presses down the rubber plug 53 so that the rubber plug 53 tightly presses the upper end opening of the air inlet 203. When it is necessary to reduce the negative pressure of the outer ring adsorption groove 205, the control rod 55 can be pulled upward so that the rubber plug 53 is separated from the upper end opening of the air inlet 203, and the air inlet 203 communicates with the outside atmosphere to reduce the negative pressure of the outer ring adsorption groove 205.

[0033] In other embodiments, as Figure 7As shown in the figure, a short arm 52 is provided at the inner end of the lever 50, and a rubber plug 53 is fixed on the short arm 52. The rubber plug 53 is used to seal an air inlet 203 of the suction cup 20, and the air inlet 203 communicates with the outer ring adsorption groove 205. When the lever 50 is toggled so that the lever 50 rotates towards the movable cross plate 40 by a certain angle, the rubber plug 53 is driven to disengage from the air inlet 203, and at the same time, the tongue 311 of the movable handle 31 disengages from the clamping plate 401 of the movable cross plate 40( Figure 2 ), that is, the movable handle assembly 30 disengages from the movable cross plate 40. While the air inlet 203 is admitting air, the compression spring 12 pushes the movable handle assembly 30 downward to the initial position, and the suction cup 20 returns to the initial state, reducing the impact when the movable handle assembly 30 is pushed downward.

[0034] In addition, as Figure 2 shown, the outer ring portion 202 is also provided with a measurement port 2024. The measurement port 2024 communicates with the bottom of the suction cup 20, and the measurement port 2024 is used to connect a vacuum gauge to measure the vacuum degree / negative pressure.

[0035] The process of generating a vacuum degree and forming an adsorption by using the transporter of the present invention:

[0036] The bottom of the suction cup 20 is attached to the adsorption plane 90. The first peripheral sealing edge 207 will adhere to the adsorption plane 90, and a 0.5 mm gap will be left between the first air sealing ring 206 and the adsorption plane 90. When an external force is used to drive the movable handle assembly 30 to move upward to drive the middle part of the suction cup 20 to move upward before the tongue 311 is not clamped with the clamping plate 401, the volume of the circular adsorption groove 204 becomes larger, and the air in the outer ring adsorption groove 205 flows unidirectionally into the circular adsorption groove 204 through the gap between the first air sealing ring 206 and the adsorption plane 90. A negative pressure is generated in the outer ring adsorption groove 205, and the arc surface 2062 of the first air sealing ring 206 will adhere to the adsorption plane 90, driving the bottom of the first air sealing ring 206 to bend towards the inside of the circular adsorption groove 204. Therefore, the adhesion between the first air sealing ring 206 and the adsorption plane 90 forms a check valve structure similar to a duckbill valve.

[0037] Subsequently, the external force applied to the movable handle assembly 30 is released. Under the restoring force of the compression spring 12, the movable handle assembly 30 drives the middle part of the suction cup 20 to move downward, squeezing the circular adsorption groove 204. However, due to the check valve structure between the first air sealing ring 206 and the adsorption plane 90, the air in the circular adsorption groove 204 cannot flow back into the outer ring adsorption groove 205. Therefore, the outer ring adsorption groove 205 maintains a negative pressure, and some excess air in the circular adsorption groove 204 will be discharged from the one-way exhaust valve 60 when it is squeezed.

[0038] The movable handle assembly 30 is driven upward by external force again and the middle part of the suction cup 20 is driven upward until the tongue 311 is not engaged with the clamping plate 401. The air remaining in the outer ring adsorption groove 205 will continue to flow into the circular adsorption groove 204 through the first air sealing ring 206 and the adsorption plane 90, and the vacuum degree of the outer ring adsorption groove 205 is improved and the negative pressure is increased. The external force applied to the movable handle assembly 30 is released again. Similarly, under the action of the downward spring 12, the circular adsorption groove 204 is squeezed and some excess air is discharged from the one-way exhaust valve 60.

[0039] Repeat the above operation, the negative pressure of the outer ring adsorption groove 205 is getting bigger and bigger, the arc surface 2082 of the second air sealing ring 208 will also fit on the adsorption plane 90, and the groove surface 2050 will also fit on the adsorption plane 90. At this time, there is less air remaining in the outer ring adsorption groove 205, and the vacuum degree is very high. When the movable handle assembly 30 is driven upward by external force, the remaining part of the air will flow from the annular groove 2051 and the radial groove 2052 to the second air sealing ring 208, and pass between the arc surface 2082 of the second air sealing ring 208 and the adsorption plane 90, and between the arc surface 2062 of the first air sealing ring 206 and the adsorption plane 90 to flow into the circular adsorption groove 204. The radial wedge groove 2053 plays a role in facilitating the airflow into the largest annular groove 2051. The movable handle assembly 30 is then driven continuously to drive the middle portion of the suction cup 20 to move upward until the latch tongue 311 and the latch plate 401 are engaged with each other, thereby fixing the movable handle assembly 30 , that is, maintaining the generated adsorption force.

[0040] The process of removing vacuum and releasing adsorption of the carrier: Figure 5 As shown, the lever 50 is pushed to rotate toward the movable horizontal plate 40 until the latch tongue 311 and the latch plate 401 are disengaged from the latching constraint, and the control rod 55 is pulled up to disengage the rubber plug 53 from the air inlet 203. The outer ring adsorption groove 205 is connected to the outside atmosphere through the air inlet 203, and the downward pressure spring 12 pushes down the movable handle assembly 30 and drives the inner circular portion 201 of the suction cup 20 to move down to the initial position. The negative pressure of the circular adsorption groove 204 and the outer ring adsorption groove 205 disappears, and the adsorption is released.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher level height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower level height than the second feature.

[0044] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0045] The above further illustrates the technical content of the present invention by way of examples to make it easier for readers to understand, but it does not mean that the embodiments of the present invention are limited thereto. Any technical extension or re-creation made in accordance with the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A sucker-type transporter with a large suction force, characterized in that, It includes a handle, a suction cup and a movable handle component. The handle is fixedly connected to the suction cup. The movable handle component is arranged between the handle and the suction cup. The middle of the suction cup is fixedly connected to the lower part of the movable handle component. The movable handle component is used to drive the middle part of the suction cup to move up and down to control the vacuum degree of the suction cup. A circular adsorption groove and an outer ring adsorption groove are provided at the bottom of the suction cup. The circular adsorption groove is arranged in the middle of the outer ring adsorption groove. The circular adsorption groove communicates with an exhaust passage. A one-way exhaust valve is arranged at the outer end of the exhaust passage. A first air sealing ring is arranged between the outer ring adsorption groove and the circular adsorption groove. The circular adsorption groove and the outer ring adsorption groove are separated by the first air sealing ring. When the suction cup is attached to the adsorption plane and the movable handle component drives the middle part of the suction cup to move up and down, the first air sealing ring fits with the adsorption plane to form a check valve structure. The air in the outer ring adsorption groove flows unidirectionally into the circular adsorption groove between the first air sealing ring and the adsorption plane. The inner side surface of the first air sealing ring facing the circular adsorption groove is a vertical surface. The outer side surface of the first air sealing ring transitions to the bottom edge of the inner side surface through a convex arc surface.

2. The sucker-type transporter with large suction force according to claim 1, characterized in that, A pull rod head passes upward through the middle of the suction cup. The pull rod head is fixedly connected to the lower part of the movable handle component. The exhaust passage is arranged in the pull rod head.

3. The suction cup type transporter with large suction force according to claim 2, wherein, The suction cup is divided into an inner circular part and an outer ring part. The thickness of the outer ring part is greater than that of the inner circular part. The outer ring part is arranged around the inner circular part. The outer ring part and the inner circular part are integrated. The circular adsorption groove corresponds to the inner circular part, and the outer ring adsorption groove corresponds to the outer ring part.

4. The sucker-type transporter with large suction force according to claim 3, characterized in that, An annular reinforcing piece for improving the rigidity of the outer ring part is embedded in the outer ring part. The annular reinforcing piece extends along the circumferential direction of the outer ring part. The annular reinforcing piece is provided with an inner threaded cylinder. A screw screwed into the inner threaded cylinder fixedly connects the handle to the outer ring part of the suction cup.

5. The suction cup type handler with large suction force according to claim 3, characterized in that The outer ring part is provided with an air inlet. The upper end opening of the air inlet faces the handle, and the lower end opening communicates with the outer ring adsorption groove. The upper end of the air inlet is blocked by a rubber plug. The rubber plug is fixed to the lower end of a control rod. The upper end of the control rod passes through the handle. A vertical compression spring is sleeved outside the control rod. The upper end of the vertical compression spring abuts against the inside of the handle, and the lower end abuts against the shoulder on the outer wall of the control rod.

6. The suction cup type transporter with large suction force according to any one of claims 1-5, characterized in that, A first peripheral sealing edge is provided at the outer edge of the outer ring adsorption groove. The height of the first air sealing ring is 0.5 mm lower than the height of the first peripheral sealing edge.

7. The sucker type transporter with large suction force according to claim 6, characterized in that, The groove surface of the outer ring adsorption groove is located between the first peripheral sealing edge and the first air sealing ring. A plurality of annular grooves are evenly distributed on the groove surface. The centers of the annular grooves are on the central axis of the suction cup. Adjacent annular grooves are communicated through radial grooves.

8. The sucker type transporter with large suction force according to claim 7, characterized in that, A second peripheral sealing edge and a transition slope with gradually decreasing height are further arranged between the groove surface of the outer ring adsorption groove and the first peripheral sealing edge. The height of the second peripheral sealing edge is less than the height of the first peripheral sealing edge. A plurality of radially wedge-shaped grooves evenly distributed in the circumferential direction are arranged in the area between the largest annular groove on the groove surface and the transition slope. The radially wedge-shaped grooves are communicated with the largest annular groove on the groove surface.

9. The suction cup type transporter with large suction force according to claim 7, characterized in that A second air sealing ring is provided between the groove surface of the outer ring adsorption groove and the first air sealing ring, and the height of the second air sealing ring is less than that of the first air sealing ring; the inner side surface of the second air sealing ring facing the first air sealing ring is a vertical surface, and the outer side surface of the second air sealing ring transitions to the bottom edge of the inner side surface through a convex arc surface; the arc surface of the second air sealing ring smoothly transitions to the side wall of the smallest ring groove.

10. The suction cup type transporter with large suction force according to any one of claims 1-5, characterized in that A downward pressing spring is provided inside the handle. The upper end of the downward pressing spring abuts against the inner side of the handle, and the lower end abuts against the upper part of the movable pull handle assembly. The downward pressing spring is used to provide a driving force for the movable pull handle assembly to move downward.

11. The sucker-type transporter with large suction force according to claim 10, characterized in that, A movable cross plate that can be translated is provided inside the handle. The translation direction of the movable cross plate is perpendicular to the moving direction of the movable pull handle assembly. The movable pull handle assembly is provided with a tongue, and a latch plate corresponding to the tongue is provided on the movable cross plate. When the movable pull handle assembly drives the middle part of the suction cup to move upward to a certain position in the stroke, the movable pull handle assembly and the movable cross plate are clamped and fixed through the tongue and the latch plate.

12. The sucker-type transporter with large suction force according to claim 11, characterized in that, The movable pull handle assembly includes a movable handle, a U-shaped member and a lower beam. The tongue is provided on the movable handle and faces upward; the U-shaped member includes a cross arm and two parallel vertical arms. The cross arm is connected to the two vertical arms respectively. The movable handle is fixedly connected to the two vertical arms of the U-shaped member. The cross arm penetrates into the movable handle. The two ends of the lower beam are respectively fixedly connected to the ends of the two vertical arms. The middle of the lower beam is fixedly connected to the middle part of the suction cup; the lower end of the downward pressing spring abuts against the cross arm.

13. The suction cup type transporter with large suction force according to claim 11, characterized in that, A lever is provided inside the handle. The inner end of the lever is hinged to the handle. The lever is provided at one end of the movable cross plate. The lever is used to push the movable cross plate from one end to the other end to translate until the movable pull handle assembly is disengaged from the movable cross plate.

14. The sucker type transporter with large suction force according to claim 13, characterized in that, A supporting position is provided on the lever. The supporting position is used to support one end of the movable cross plate. The other end of the movable cross plate is inserted into a vertical plate through hole of the handle. A horizontal compression spring is provided at the other end of the movable cross plate. One end of the horizontal compression spring abuts against the vertical plate of the handle, and the other end abuts against the movable cross plate. The horizontal compression spring is used to push the movable cross plate towards the lever.

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