Cylinder blower quick connector

Abstract

The utility model provides a kind of air cylinder type air blower quick connector, belong to air blower technical field, including connector body, adjusting structure and connecting structure;Connector body includes cylinder barrel, movable inner tube and piston, cylinder barrel is slidably covered in the outside of movable inner tube, and sealing cavity is formed between cylinder barrel and movable inner tube;Piston is located the circumference of movable inner tube, and sealing cavity is divided into first sealing cavity and second sealing cavity;Adjusting structure includes two regulating valves, two regulating valves are respectively arranged in the both ends of cylinder barrel, and two regulating valves are respectively communicated first sealing cavity and second sealing cavity.The utility model provides a kind of air cylinder type air blower quick connector, by adjusting structure and the air cylinder type design of connector body, only need to pass through regulating valve control sealing cavity air pressure to be adapted to the installation demand of multiple equipment, greatly improve the versatility of connector, reduce the cost consumption brought by customization processing.

Description

Technical Field

[0001] This utility model belongs to the field of blower technology, and more specifically, relates to a quick connector for a cylinder-type blower. Background Technology

[0002] In industrial production, ventilation, and equipment cooling, blowers are core equipment for gas delivery, and their connection efficiency and stability with ducts, hoses, and other supporting equipment directly affect the overall system's operational efficiency. To address the problems of cumbersome installation, inconvenient disassembly, and low maintenance efficiency associated with traditional connection methods, blower quick-connect coupling technology has gradually developed.

[0003] Because the air outlet positions of blowers of different models and installation heights vary, and existing blower quick couplings are usually cylindrical structures of fixed length and height, they need to be customized to fit the specific equipment, resulting in poor versatility and high processing costs. Utility Model Content

[0004] The purpose of this invention is to provide a quick connector for a cylinder-type blower, which aims to improve the compatibility of the connector.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a cylinder-type blower quick connector, comprising: The connector body includes a cylinder body, a movable inner tube, and a piston. The cylinder body is slidably sleeved on the outside of the movable inner tube, and a sealing cavity is formed between the cylinder body and the movable inner tube. The piston is located circumferentially on the movable inner tube, and the piston is attached to the inner wall of the cylinder body, dividing the sealing cavity into a first sealing cavity and a second sealing cavity. The adjustment structure includes two adjustment valves, which are respectively located at two ends of the cylinder body, and the two adjustment valves are respectively connected to the first sealing cavity and the second sealing cavity; The connection structure includes a first connector and a second connector respectively disposed at both ends of the connector body. The first connector is connected to the cylinder body, and the second connector is connected to the movable inner tube.

[0006] In another embodiment of this application, the piston is integrally formed with the movable inner tube.

[0007] In another embodiment of this application, a sealing ring is provided on the mounting end face of both the first connector and the second connector.

[0008] In another embodiment of this application, the cylinder body includes: Support section; Two closed sections are located at the two ends of the support section respectively; the inner wall of the closed section is attached to the outer wall of the movable inner tube, and the inner side of the closed section is provided with a lip-shaped sealing ring.

[0009] In another embodiment of this application, a through hole is provided on the closed section, the through hole being located inside the lip seal; the regulating valve is disposed inside the through hole.

[0010] In another embodiment of this application, the thickness of the closed segment is greater than the thickness of the supporting segment.

[0011] In another embodiment of this application, both the first connector and the second connector are flange structures.

[0012] As another embodiment of this application, it also includes: A variable diameter pipe section, which is detachably connected to the first connector or the second connector.

[0013] As another embodiment of this application, it also includes: A retainer is provided on the outer periphery of the first connector, and the free end of the retainer has a flared structure.

[0014] The advantages of the cylinder-type blower quick connector provided by this utility model are as follows: Compared with the prior art, the cylinder-type blower quick connector of this utility model, through the cylinder design of the adjustment structure and the connector body, can adapt to the installation requirements of various equipment by simply controlling the air pressure of the sealing cavity through the regulating valve, which greatly improves the versatility of the connector and reduces the cost of customized processing; the connector body adopts a sliding sealing structure of cylinder body and movable inner tube, and the piston divides the sealing cavity into two independent sealing cavities. Combined with the sealing design between cylinder body and movable inner tube, a dynamic sealing system is formed, which improves the long-term sealing reliability of the connector; the connection structure connects to the blower and supporting equipment through the first and second connecting parts at both ends, respectively. The installation and disassembly process does not require complicated tools, which effectively improves the connection efficiency and maintenance convenience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of the cylinder-type blower quick connector provided in the first embodiment of this utility model; Figure 2 A longitudinal sectional view of the cylinder-type blower quick connector provided in the first embodiment of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A schematic diagram of the structure of the cylinder-type blower quick connector provided in the second embodiment of this utility model; Figure 5 A longitudinal sectional view of the cylinder-type blower quick connector provided in the second embodiment of this utility model; Figure 6 A longitudinal sectional view of the cylinder-type blower quick connector provided in the third embodiment of this utility model.

[0017] In the diagram: 1. Movable inner tube; 2. Cylinder body; 3. First connecting piece; 4. Second connecting piece; 5. Adjusting valve; 6. Piston; 7. Lip seal; 8. Reducing pipe section; 9. Compression fitting. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects 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.

[0019] Please see Figures 1 to 6 The present invention provides a description of a cylinder-type blower quick connector. The cylinder-type blower quick connector includes a connector body, an adjustment structure, and a connection structure. The connector body includes a cylinder body 2, a movable inner tube 1, and a piston 6. The cylinder body 2 is slidably sleeved on the outside of the movable inner tube 1, forming a sealed cavity between the cylinder body 2 and the movable inner tube 1. The piston 6 is located circumferentially on the movable inner tube 1, and is fitted against the inner wall of the cylinder body 2, dividing the sealed cavity into a first sealed cavity and a second sealed cavity. The adjustment structure includes two adjusting valves 5, which are respectively located at the two ends of the cylinder body 2, and respectively connect the first sealed cavity and the second sealed cavity. The connection structure includes a first connecting member 3 and a second connecting member 4, respectively located at both ends of the connector body. The first connecting member 3 is connected to the cylinder body 2, and the second connecting member 4 is connected to the movable inner tube 1.

[0020] The cylinder body 2, the movable inner tube 1, and the piston 6 are combined to form a longitudinally telescopic cylinder structure. The length can be adjusted by the coordinated action of the adjustment structure and the connector body, while ensuring the sealing performance.

[0021] During the quick connector connection process, the cylinder body 2 of the connector body is slidably fitted onto the outside of the movable inner tube 1, while the piston 6 divides the cavity between them into a first sealing cavity and a second sealing cavity. During adjustment, two regulating valves 5 connect the two sealing cavities respectively. When high-pressure gas is introduced into the first sealing cavity through regulating valve 5 and gas is simultaneously discharged from the second sealing cavity through the other regulating valve 5, the piston 6, under the action of the pressure difference, causes the movable inner tube 1 to extend outward relative to the cylinder body 2, increasing the overall length of the connector. Conversely, when high-pressure gas is introduced into the second sealing cavity and gas is discharged from the first sealing cavity, the piston 6 causes the movable inner tube 1 to retract into the cylinder body 2, shortening the overall length of the connector. By precisely controlling the pressure changes in the two sealing cavities, the connector length can be flexibly adjusted to fit the blower outlet at different locations.

[0022] During the connection and fixing phase, the first connecting piece 3 of the connecting structure is fixedly connected to the cylinder body 2, and the second connecting piece 4 is fixedly connected to the movable inner tube 1. After the connector length is adjusted to the target position, the first connecting piece 3 can quickly align with the blower outlet, and the second connecting piece 4 connects to the air duct or supporting equipment, completing the construction of the entire gas delivery path. Simultaneously, the sealing cavity design between the cylinder body 2 and the movable inner tube 1, combined with the sealing effect of the piston 6, forms a dynamic sealing structure, effectively preventing gas leakage from the gap between them during delivery.

[0023] Optionally, the length of the movable inner tube 1 is greater than the sum of the length of the cylinder body 2 and the movement of the cylinder body 2. The regulating valve 5 can be a solenoid valve. One end of the regulating valve 5 is connected to an air source, and the other end extends into the first sealing chamber / second sealing chamber. When it is necessary to adjust the length of the connector body, only the opening and closing state of the regulating valve 5 and the air supply and extraction states of the air source need to be adjusted.

[0024] The cylinder-type quick connector for blowers provided by this utility model, compared with the prior art, adapts to the installation requirements of various equipment by adjusting the structure and the cylinder design of the connector body. It only requires controlling the air pressure of the sealing cavity through the regulating valve 5, which greatly improves the versatility of the connector and reduces the cost of customized processing. The connector body adopts a sliding sealing structure of cylinder body 2 and movable inner tube 1. The piston 6 divides the sealing cavity into two independent sealing cavities. Combined with the sealing design between cylinder body 2 and movable inner tube 1, a dynamic sealing system is formed, which improves the long-term sealing reliability of the connector. The connection structure connects to the blower and supporting equipment through the first connector 3 and the second connector 4 at both ends, respectively. The installation and disassembly process does not require complicated tools, which effectively improves the connection efficiency and maintenance convenience.

[0025] Optionally, the piston 6 and the movable inner tube 1 are integrally formed. When the two regulating valves 5 of the regulating structure control the air pressure of the first sealing chamber and the second sealing chamber respectively, the air pressure difference acts directly on the piston 6. Since the piston 6 and the movable inner tube 1 are integrally formed, there is no assembly gap between them, and the force can be evenly transmitted to the movable inner tube 1, so that the movable inner tube 1 can move stably relative to the cylinder body 2 in sync with the piston 6. When the high-pressure airflow flows in the sealing chamber, the gas cannot penetrate from the connection position between the piston 6 and the movable inner tube 1, ensuring the independent sealing of the first sealing chamber and the second sealing chamber, and providing a structural basis for the effectiveness of air pressure regulation. Compared with the method of separately processing and assembling the piston 6 and the movable inner tube 1, the integral forming process can reduce the number of parts and assembly steps, reduce processing errors and assembly defect rates; in use and maintenance, since there is no problem of loose connection between the piston 6 and the movable inner tube 1, the frequency of maintenance and replacement due to failure of this part is reduced, and the later maintenance cost is reduced.

[0026] In some possible embodiments, sealing rings are provided on the mounting end faces of both the first connector 3 and the second connector 4. The sealing rings may be O-rings.

[0027] The first connector 3 is used to connect to the blower outlet, and the second connector 4 is used to connect to the air duct or supporting equipment.

[0028] After the connectors are length-adjusted via the adjustment mechanism, aligning the first connector 3 and the second connector 4 with the blower outlet and the duct connection port respectively, the first connector 3 fits against the blower outlet, and the second connector 4 fits against the duct connection port. At this point, the sealing ring on the mounting surface of the first connector 3 is pressed between the contact surfaces of the first connector 3 and the blower outlet, and the sealing ring on the mounting surface of the second connector 4 is pressed between the contact surfaces of the second connector 4 and the duct connection port. Under the action of the sealing rings, the entire piping system achieves a seal.

[0029] In some possible embodiments, please refer to Figure 2 The cylinder body 2 includes a support section and two closed sections; the two closed sections are located at both ends of the support section; the inner wall of the closed section is attached to the outer wall of the movable inner tube 1, and the inner side of the closed section is provided with a lip seal 7.

[0030] From the perspective of support and sliding, the support section provides overall structural support for the cylinder body, ensuring that the cylinder body maintains a stable shape during the extension and retraction of the movable inner tube 1. The two closed sections are located at both ends of the support section, and their inner walls are attached to the outer walls of the movable inner tube 1. The lip seals 7 installed in the closed sections are used to seal the ends of the sealing cavities.

[0031] A sealing cavity is formed between the lip seals 7 at both ends of the cylinder body 2. The piston 6 is located between the two lip seals 7, which divides the sealing cavity into a first sealing cavity and a second sealing cavity.

[0032] When the regulating structure controls the air pressure of the first sealing chamber and the second sealing chamber through the regulating valve 5, the movable inner tube 1 slides relative to the cylinder under the action of the air pressure difference. The inner wall of the closed section fits against the outer wall of the movable inner tube 1, ensuring that the movable inner tube 1 moves smoothly along the axial direction and avoiding deviation or shaking, thus ensuring the accuracy of connector length adjustment.

[0033] The high-efficiency sealing performance of the lip seal 7 reduces gas leakage between the sealing cavity and the outside, ensuring stable gas pressure within the sealing cavity. This allows the regulating structure to more effectively control the gas pressure via the regulating valve 5, reducing energy loss due to gas leakage and improving the connector's working efficiency. Furthermore, the lip seal 7 exhibits good wear resistance and fatigue resistance. Its contact with the movable inner tube 1 is a line contact, resulting in low friction and slow wear during long-term sliding of the movable inner tube 1. Simultaneously, the structural design of the support and sealing sections enhances the overall strength of the cylinder body.

[0034] In some possible embodiments, a through hole is provided on the closed section, and the through hole is located inside the lip seal 7; the regulating valve 5 is located inside the through hole.

[0035] The regulating valve 5 is installed inside the lip seal ring 7 through the through hole, so that the communication position between the regulating valve 5 and the sealing cavity is located inside the sealing area of ​​the lip seal ring 7. This ensures that the lip seal ring 7 can continuously and stably form an effective seal between the cylinder body 2 and the movable inner tube 1. The lip seal rings 7 at both ends cooperate with the piston 6 to form the first sealing cavity and the second sealing cavity, which structurally reduces the probability of gas leakage due to seal failure.

[0036] Preferably, the thickness of the closed section is greater than the thickness of the supporting section.

[0037] The inner side of the closed section is fitted with a lip seal 7 and a regulating valve 5 is installed by drilling. Therefore, as the pipe part of the cylinder body 2, the closed section needs to withstand the friction caused by the sliding of the movable inner tube 1, the pressure generated by the change of air pressure in the sealing cavity, and the external installation stress. Increasing the thickness of the closed section can strengthen the strength of the closed section itself, reduce the risk of deformation and cracking, and ensure the working stability of the cylinder body 2 structure.

[0038] In some possible embodiments, please refer to Figure 1 Both the first connecting piece 3 and the second connecting piece 4 are flange structures.

[0039] The flange structure can be quickly connected to the outlet of the gas pipeline / blower using fasteners such as bolts, which can shorten the installation time.

[0040] A sealing ring is arranged on the mounting surface of the flange structure. During installation, the flange structure abuts against the end face of the gas pipeline / blower outlet. Under the action of external force, the sealing ring will be squeezed and deformed to achieve sealing of the joint gap.

[0041] like Figure 4 and Figure 5 As shown, in another embodiment, the cylinder-type blower quick connector further includes a reducing pipe section 8, which is detachably connected to the first connector 3 or the second connector 4.

[0042] The cylinder-type blower quick connector also features a reducing pipe section 8, one end of which is fitted to the connector body. During installation, first connect one end of the reducing pipe section 8 to the first connector 3 or the second connector 4 to form a single unit, and then install it at the outlet end of the blower.

[0043] The adjustable pipe section 8 allows for flexible adjustment of the connection diameter to accommodate differences in the diameter of the blower outlet, ductwork, and hoses. Whether dealing with variations in the size of the blower outlet from different models or changes in the diameter of the downstream ductwork, simply replacing the corresponding adjustable pipe section 8 eliminates the need for redesigning or customizing the connector itself. This enables precise connection to various types of equipment, fundamentally overcoming the limitations of traditional quick connectors that rely on specific devices and significantly improving the connector's versatility and applicability.

[0044] The reducing pipe section 8 is detachable, facilitating maintenance and replacement. When the reducing pipe section 8 is worn or damaged, only the reducing pipe section 8 needs to be replaced, without replacing the entire connector body, thus reducing maintenance costs.

[0045] like Figure 6 As shown, in another embodiment, the cylinder-type blower quick connector further includes a ferrule 9, which is disposed on the outer periphery of the first connector 3, and the free end of the ferrule 9 has a flared structure.

[0046] The ferrule 9 is installed on the outer periphery of the first connector 3 and is fixedly connected to the first connector 3. The fixed connection between the ferrule 9 and the first connector 3 ensures the stability of its position during the guiding process, provides rigid support for the docking process, and avoids guide deviation caused by external forces or vibration, thereby achieving efficient and accurate connection positioning.

[0047] Optionally, the ferrule 9 can be welded or bolted to the first connector 3.

[0048] The ferrule 9 extends toward the side away from the second connector 4, and the inner diameter of the ferrule 9 gradually increases from the fixed end toward the movable end, so that the end of the ferrule 9 forms a flared structure. During installation, the cylinder body 2 extends upward, and the ferrule 9 at its upper end, after contacting the end of the air duct, assists the first connector 3 in automatic positioning.

[0049] When the duct end is moved toward the first connector 3, the duct end first contacts the flared edge of the clamp 9. As the inner diameter of the flared end gradually increases from the fixed end to the movable end, the duct end will naturally fall into the inclined inner wall range of the flared end. At this time, the inclined inner wall of the flared end forms an initial constraint on the duct end, limiting the large displacement of the duct in the radial direction and guiding the duct to move closer to the central axis of the first connector 3 along the inclination angle of the flared end, thus initially correcting any possible alignment deviations.

[0050] During installation, as the cylinder body 2 extends upwards and the upper clamping sleeve 9 contacts the end of the duct, the flared structure guides the duct end through its inclined inner wall, automatically aligning the first connector 3 with the duct without requiring repeated manual calibration. This automatic positioning function reduces manual adjustment steps during installation, significantly reducing operational difficulty and installation time, especially in high-altitude installations or confined space operations.

[0051] Optionally, the ferrule 9 includes a straight section and an expansion section. The inner wall of the straight section is attached to the outer side of the first connector 3 and is fixedly connected to the first connector 3. The expansion section is connected to the straight section, and the inner diameter of the expansion section gradually increases axially toward the side away from the straight section to form a flared mouth.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick connector for a Roots® blower, characterized by, include: The connector body includes a cylinder body (2), a movable inner tube (1), and a piston (6). The cylinder body (2) is slidably sleeved on the outside of the movable inner tube (1), and a sealing cavity is formed between the cylinder body (2) and the movable inner tube (1). The piston (6) is located in the circumferential direction of the movable inner tube (1), and the piston (6) is attached to the inner wall of the cylinder body (2), dividing the sealing cavity into a first sealing cavity and a second sealing cavity. The adjustment structure includes two adjustment valves (5), which are respectively located at the two ends of the cylinder body (2), and the two adjustment valves (5) are respectively connected to the first sealing cavity and the second sealing cavity; The connection structure includes a first connector (3) and a second connector (4) respectively disposed at both ends of the connector body. The first connector (3) is connected to the cylinder body (2), and the second connector (4) is connected to the movable inner tube (1).

2. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, The piston (6) is integrally formed with the movable inner tube (1).

3. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, Both the first connector (3) and the second connector (4) have sealing rings on their mounting end faces.

4. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, The cylinder body (2) includes: Support section; Two closed sections are located at the two ends of the support section respectively; the inner sidewall of the closed section is attached to the outer sidewall of the movable inner tube (1), and the inner side of the closed section is provided with a lip-shaped sealing ring (7).

5. The quick connect of a pneumatic cylinder blower as claimed in claim 4, wherein, A through hole is provided on the closed section, and the through hole is located inside the lip seal (7); the regulating valve (5) is located inside the through hole.

6. The quick connect of a pneumatic cylinder blower as claimed in claim 4, wherein, The thickness of the closed section is greater than the thickness of the supporting section.

7. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, Both the first connector (3) and the second connector (4) are flange structures.

8. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, Also includes: A variable diameter pipe section (8) is detachably connected to the first connector (3) or the second connector (4).

9. The quick connect of a pneumatic cylinder blower as claimed in claim 1, wherein, Also includes: A sleeve (9) is provided on the outer periphery of the first connector (3), and the free end of the sleeve (9) has a flared structure.

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