A support with a vacuum generator

Abstract

This utility model discloses a bracket with a vacuum generator, including a first housing with an internal cavity. A connector and a second housing are respectively located at both ends of the first housing. The connector connects to a suction cup. A mounting cavity is located within the second housing, and an airflow diffuser is disposed within the mounting cavity. A nozzle is located at one end of the second housing, injecting high-speed gas into the airflow diffuser. A plug is located at the end of the airflow diffuser located on one side of the nozzle, dividing the mounting cavity into a vacuum generation zone and an airflow discharge zone. Airflow holes are provided on the second housing corresponding to the airflow discharge zone and on the airflow diffuser. A negative pressure through-hole is also provided within the second housing, connecting the vacuum generation zone and the cavity. This utility model has a compact structure, occupies little equipment space, reduces operating costs, and is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of vacuum generator technology, and specifically to a bracket with a vacuum generator. Background Technology

[0002] Vacuum generators, as core pneumatic components in industrial automation systems, operate based on the Venturi effect—creating negative pressure at the nozzle through a high-speed compressed airflow to achieve functions such as adsorption and handling. In intelligent warehousing and sorting systems, these devices are commonly used for tasks such as carton gripping and package labeling; while in the field of food packaging machinery, they undertake precision operations such as suction cup positioning and non-destructive clamping of fragile items.

[0003] There are many types of vacuum generators on the market, but most of them are large in size and occupy a lot of equipment space. As an independent component, the vacuum generator needs to be connected to the suction cup through pipelines. The suction cup is usually mounted on a bracket. Therefore, the overall structure occupies a lot of space and requires matching parts to be used, resulting in high procurement costs for enterprises. Furthermore, during maintenance, the response time for purchasing and replacing parts is long, which greatly affects production efficiency.

[0004] There are also some high-performance products that can greatly reduce repair and maintenance time, but they are expensive and not convenient to use. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a bracket with a vacuum generator, which has a compact structure, occupies little equipment space, reduces the cost of use, and is convenient to maintain.

[0006] To address the aforementioned technical problems, this utility model provides a bracket with a vacuum generator, comprising a first housing with an internal cavity, an adapter and a second housing at both ends of the first housing, the adapter being connected to a suction cup, a mounting cavity within the second housing containing an airflow diffuser, a nozzle at one end of the second housing that injects high-speed gas into the airflow diffuser, a plug at one end of the airflow diffuser on one side of the nozzle dividing the mounting cavity into a vacuum generation zone and an airflow discharge zone, airflow holes on the second housing corresponding to the airflow discharge zone and on the airflow diffuser, and a negative pressure through hole connecting the vacuum generation zone and the cavity within the second housing.

[0007] Furthermore, a buffer assembly is provided between the first housing and the adapter. The buffer assembly includes a movable sleeve, one end of which is provided with a piston head. A sealing ring is provided on the outer ring side of the piston head. The piston head is disposed in a cavity, and a limit ring is provided in the cavity to prevent the piston head from dislodging. The other end of the movable sleeve extends out of the cavity and is connected to the adapter. The adapter includes a middle plate, and a connecting end and an mounting end are respectively provided on both sides of the middle plate. A spring is provided on the movable sleeve between the middle plate and the limit ring.

[0008] Furthermore, the limiting ring is a retaining ring, and an annular mounting groove is provided on the inner wall of the first housing corresponding to the retaining ring.

[0009] Furthermore, a guide post is provided on the end of the second housing located on one side of the movable sleeve. The guide post extends into the movable sleeve, and a venting groove is provided on the inner wall of the movable sleeve to connect the adapter and the cavity.

[0010] Furthermore, the nozzle is equipped with a quick-connect air hose connector.

[0011] Furthermore, the number of airflow holes on the second housing and the airflow diffuser are the same and are set in a one-to-one correspondence.

[0012] Furthermore, the first housing and the airflow diffuser are made of metal, while the second housing is made of plastic. Limiting rings are provided on the outer periphery of the plug of the airflow diffuser and on the outer periphery of the bottom of the second housing. The limiting rings are provided with guide surfaces, and the inner walls of the second housing and the first housing corresponding to the limiting rings are provided with slots.

[0013] Furthermore, the airflow diffuser is made of copper.

[0014] Furthermore, two fixing nuts are provided on the outer wall of the first housing.

[0015] The beneficial effects of this utility model are:

[0016] By integrating the vacuum generator into the support structure, the support and suction cup can be assembled and used immediately after being connected to compressed gas. The integrated structure greatly reduces the overall size, making it compact and eliminating excessively long pipelines, resulting in low losses and effectively reduced power consumption.

[0017] It can also greatly improve the adsorption response capability, with a short response time, and can quickly reach a vacuum state. In addition, the adapter designed at the bottom can be quickly adapted to different suction cup products, making it highly versatile. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the middle section structure;

[0021] Figure 4 This is a schematic diagram of the airflow diffuser structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the second shell structure of this utility model;

[0023] Figure 6 This is a schematic cross-sectional view of the second housing of this utility model;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the movable sleeve and adapter of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 Paper Figure 7 As shown, one embodiment of the bracket with a vacuum generator of this utility model includes a first housing 1, a cavity 2 inside the first housing, an adapter 3 and a second housing 4 respectively at both ends of the first housing, the adapter being connected to a suction cup, an installation cavity 5 inside the second housing, an airflow diffuser 6 inside the installation cavity, a nozzle 7 at the end of the second housing, the nozzle injecting high-speed gas toward the airflow diffuser, a plug 8 at the end of the airflow diffuser located on one side of the nozzle, the plug dividing the installation cavity into a vacuum generation zone 9 and an airflow discharge zone 10, airflow holes 11 are provided on the second housing corresponding to the airflow discharge zone and on the airflow diffuser, and a negative pressure through hole 12 is also provided inside the second housing, the negative pressure through hole connecting the vacuum generation zone and the cavity.

[0027] During assembly, first install the airflow diffuser tube inside the mounting cavity of the second housing, then install the nozzle. The nozzle is connected to the hose supplying high-speed gas. Specifically, a quick-connect fitting 24 can be installed on the nozzle for easy insertion and removal of the hose. Next, connect and secure the assembled unit to one end of the first housing. Finally, install the adapter on the other end of the second housing to complete the assembly. The number of airflow holes on the second housing and the airflow diffuser are consistent and correspond one-to-one, allowing high-speed gas to flow out quickly, reducing obstruction and preventing velocity reduction. Install the appropriate suction cup according to the usage environment, and it can be installed on the equipment for use. The first housing surface has threads and two fixing nuts 26. By engaging the fixing nuts, the first housing can be secured to the mounting base of the equipment, making operation convenient.

[0028] When using, refer to Figure 2 As shown, high-speed gas (positive pressure gas) enters from the quick-connect fitting at the top of the gas pipe. The gas enters from one end of the nozzle, which has a narrow channel. After entering the narrow channel, the gas velocity accelerates and moves towards the interior of the airflow diffuser. The bottom of the airflow diffuser is sealed, so the gas can only exit through multiple airflow holes on the side of the airflow diffuser. The airflow holes on the airflow diffuser are positioned opposite to the airflow holes on the second housing. That is, the gas flows through the airflow holes on the airflow diffuser and the airflow holes on the second housing before being discharged to the outside. In this process... In the process, due to the gap between the nozzle and the airflow diffuser, i.e., the vacuum generation zone, the high-speed flowing gas carries the gas in the vacuum generation zone out to the outside (according to Bernoulli's equation, the air pressure is low in the high-velocity area, and the relatively higher air pressure in the surrounding area will flow to the low-pressure area, forming a local siphon phenomenon, which in turn draws away the surrounding gas). Therefore, a negative pressure is formed in the vacuum generation zone. Since the negative pressure through-hole connects the vacuum generation zone and the cavity, when a negative pressure is formed in the vacuum generation zone, a negative pressure is also formed in the cavity of the first shell, which can be used to adsorb products with the suction cup. When it is necessary to release the product, simply stop the supply of positive pressure gas to restore it.

[0029] During the product gripping process, the bracket and the product will be squeezed. If the pressure is too high, the product may be crushed. If the pressure is too low, the gripping may be unstable. Therefore, a buffer assembly 13 is provided between the first housing and the adapter. The buffer assembly includes a movable sleeve 14. A piston head 15 is provided at one end of the movable sleeve. A sealing ring 16 is provided on the outer ring side of the piston head. The piston head is located in the cavity. A limit ring 17 is provided in the cavity to limit the piston head from coming out. The other end of the movable sleeve extends out of the cavity and is connected to the adapter. The adapter includes a middle plate 18. A connecting end 19 and an installation end 20 are provided on the two sides of the middle plate, respectively. A spring 21 is provided on the movable sleeve between the middle plate and the limit ring.

[0030] The movable sleeve is confined within the first housing by a limiting ring and cannot be dislodged. A sealing ring seals the outer wall of the movable sleeve against the inner wall of the first housing. The movable sleeve can move axially within the cavity of the first housing via a piston head. A spring is installed on the outer surface of the movable sleeve, constantly applying an outward force. When there is no force applied to the outer end of the movable sleeve, it remains extended. When adsorbing a product, the first housing is moved towards the product surface. The suction cup at the end of the movable sleeve contacts the product, preventing further movement of the sleeve. The first housing continues to move towards the product, and the movable sleeve moves relative to it, i.e., the piston head moves towards the second housing. The spring is compressed, and this compression force is converted into a force applied to the product surface by the movable sleeve. A constant-force spring can be used to ensure that the force applied to the product surface by the movable sleeve remains constant throughout its travel, preventing damage to the product. This achieves a good adhesion between the suction cup and the product surface.

[0031] Positive pressure gas is then introduced to create a vacuum, which achieves the purpose of adsorbing the product. When the product is grasped and transferred, it detaches from the placement platform, the spring's compression force is released, and the movable sleeve returns to its original position. This creates an effective buffering effect, ensuring the quality of the grasp.

[0032] When the aforementioned movable sleeve moves within the first housing, it is prone to wobbling if only the piston head serves as a guide support. Therefore, a guide post 22 is provided on the end of the second housing located on one side of the movable sleeve. The guide post extends into the movable sleeve, allowing the movable sleeve to move while mounted on the guide post, thereby ensuring stability during movement. Furthermore, a venting groove 23 is provided on the inner wall of the movable sleeve, connecting the adapter and the cavity. The venting groove between the guide post and the inner wall of the movable sleeve effectively connects the adapter and the cavity, ensuring the effective formation of a vacuum.

[0033] The aforementioned limiting ring is a retaining ring, and an annular mounting groove is provided on the inner wall of the first housing corresponding to the retaining ring for easy disassembly and assembly.

[0034] The first housing and the airflow diffuser are made of metal, specifically copper, to improve machining accuracy. The second housing is made of plastic, such as POM plastic. Limiting rings 25 are provided on the outer periphery of the diffuser plug and the outer periphery of the bottom of the second housing. These limiting rings have guide surfaces, and corresponding grooves are provided on the inner walls of both the second and first housings. The elasticity of the plastic material ensures good fixation when engaging with the metal, and assembly is convenient, greatly improving assembly efficiency.

[0035] In summary, the bracket structure of this application is ingeniously designed, integrating the bracket and vacuum generator into one unit. This effectively reduces the length of pipe connections while maintaining a compact overall size, enabling the rapid generation of high vacuum levels. The compact structure also helps reduce power consumption, making it suitable for high-speed applications when vacuum generation is rapid. Furthermore, the vacuum suction cup is mounted on an adapter for easy and quick replacement to meet customer needs.

[0036] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A support with a vacuum generator, characterized in that, The device includes a first housing with an internal cavity. A connector and a second housing are respectively located at both ends of the first housing. The connector is connected to a suction cup. An installation cavity is located within the second housing, containing an airflow diffuser. A nozzle is located at one end of the second housing, injecting high-speed gas into the airflow diffuser. A plug is located at the end of the airflow diffuser on one side of the nozzle, dividing the installation cavity into a vacuum generation zone and an airflow discharge zone. Airflow holes are provided on the second housing corresponding to the airflow discharge zone and on the airflow diffuser. A negative pressure through-hole is also provided within the second housing, connecting the vacuum generation zone and the cavity.

2. The bracket with a vacuum generator as described in claim 1, characterized in that, A buffer assembly is also provided between the first housing and the adapter. The buffer assembly includes a movable sleeve. A piston head is provided at one end of the movable sleeve. A sealing ring is provided on the outer ring side of the piston head. The piston head is located in a cavity. A limit ring is provided in the cavity to prevent the piston head from coming out. The other end of the movable sleeve extends out of the cavity and is connected to the adapter. The adapter includes a middle plate. A connecting end and an mounting end are respectively provided on the two sides of the middle plate. A spring is provided on the movable sleeve between the middle plate and the limit ring.

3. The bracket with a vacuum generator as described in claim 2, characterized in that, The limiting ring is a retaining ring, and an annular mounting groove is provided on the inner wall of the first housing corresponding to the retaining ring.

4. The bracket with a vacuum generator as described in claim 1, characterized in that, The second housing is provided with a guide post at the end of the movable sleeve on one side. The guide post extends into the movable sleeve. The inner wall of the movable sleeve is provided with a vent groove that connects the adapter and the cavity.

5. The bracket with a vacuum generator as described in claim 1, characterized in that, The nozzle is equipped with a quick-connect air hose.

6. The bracket with a vacuum generator as described in claim 1, characterized in that, The number of airflow holes on the second housing and the airflow diffuser are the same and are set in a one-to-one correspondence.

7. The bracket with a vacuum generator as described in claim 1, characterized in that, The first housing and the airflow diffuser are made of metal, and the second housing is made of plastic. Limiting rings are provided on the outer periphery of the plug of the airflow diffuser and on the outer periphery of the bottom of the second housing. The limiting rings are provided with guide surfaces, and the inner walls of the second housing and the first housing are provided with grooves.

8. The bracket with a vacuum generator as described in claim 7, characterized in that, The airflow diffuser is made of copper.

9. The bracket with a vacuum generator as described in claim 1, characterized in that, Two fixing nuts are provided on the outer wall of the first housing.

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