Air cylinder dustproof assembly, air cylinder with dustproof assembly and environmental sanitation vehicle
By introducing a sealed dust cover and a ventilation ring into the cylinder dustproof assembly, the problem of air leakage caused by dust and rainwater in the cylinder piston rod of sanitation vehicles is solved, achieving excellent dustproof performance and versatility, and reducing cylinder maintenance costs.
Patent Information
- Application Number
- CN202520728751.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-16
AI Technical Summary
In the existing technology, the piston rod of the cylinder of sanitation vehicles is prone to air leakage due to gravel and dust, and the existing dust cover still allows dust and rainwater to enter after long-term use, resulting in seal failure, and its versatility is poor.
Design a cylinder dustproof component, including a sealed dustproof cover and a ventilation ring. The ventilation ring is set in the opening of the sealed dustproof cover and has a ventilation channel to ensure that the inside of the sealed dustproof cover is connected to the external space, preventing dust and rainwater from entering, while eliminating the need for additional ventilation structures on the cylinder.
It achieves effective dust prevention for the cylinder piston rod, preventing dust and rainwater from entering and maintaining the cylinder's sealing performance, while also taking into account the cylinder's versatility and cost-effectiveness.
Smart Images
Figure CN223964698U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle and cylinder technology, specifically to a cylinder dustproof component, a cylinder with a dustproof component, and a sanitation vehicle. Background Technology
[0002] Sanitation vehicles typically rely on cylinders to perform critical actions, such as raising and adjusting the sweeping discs, raising and adjusting the roller sweeper or suction nozzle, and controlling the flow of high-pressure water. Due to the harsh working conditions in the sanitation industry, the cylinder piston rod can be dented by impacts from gravel and debris, leading to air leakage. Furthermore, the long-term accumulation of outdoor dust on the piston rod can cause cylinder seal failure.
[0003] To address the aforementioned issues, existing technologies typically involve installing a retractable, breathable dust cover on the piston rod of the cylinder. However, even with this dust cover, fine dust and rainwater can still enter and affect the piston rod over extended periods. Another approach is to install a retractable, sealed dust cover on the piston rod. However, to ensure the sealed dust cover's extension and retraction are synchronized with the cylinder's movement, holes need to be drilled in the cylinder's front end cap to allow for ventilation during the dust cover's expansion and contraction. This sealed dust cover increases the cylinder's cost and reduces its versatility.
[0004] How to provide a dust cover that offers both protective performance and versatility has become a pressing technical problem in this field. Utility Model Content
[0005] The purpose of this utility model is to provide a cylinder dustproof component, a cylinder with a dustproof component, and a sanitation vehicle, which have good protective performance and good versatility.
[0006] The embodiments of this utility model can be implemented as follows:
[0007] In a first aspect, this utility model provides a cylinder dustproof component, which includes a sealing dustproof cover and an air exchange ring;
[0008] The sealed dust cover has a first end and a second end opposite to each other, and is capable of extending and retracting from the first end toward the second end;
[0009] The ventilation ring is disposed in the opening corresponding to the first end and / or the opening corresponding to the second end of the sealing dust cover. The ventilation ring is provided with a through hole, and the ventilation ring is also provided with a ventilation channel in the circumferential direction. The ventilation channel enables the internal space of the sealing dust cover to communicate with the external space of the sealing dust cover.
[0010] In an optional embodiment, the ventilation channel is a plurality of ventilation holes arranged circumferentially at intervals on the ventilation ring, and the ventilation holes are opened along the axial direction of the ventilation ring.
[0011] and / or;
[0012] The dustproof component also includes a filter element, which is disposed at the ventilation channel;
[0013] and / or;
[0014] The sealed dust cover is made of flexible material.
[0015] In an optional embodiment, the dustproof component further includes a snap-fit connector;
[0016] The snap-fit component is located on the outer side of the end of the sealing dust cover corresponding to the ventilation ring, so as to connect the sealing dust cover to the piston rod joint of the cylinder or the front end cover of the cylinder.
[0017] In an optional embodiment, the ventilation ring and the sealing dust cover are separately configured;
[0018] The ventilation ring is disposed in the opening of the sealing dust cover at the first end, and the snap-fit is disposed on the outer periphery of the sealing dust cover at the first end. The snap-fit can fix the ventilation ring to the inner periphery of the first end of the sealing dust cover.
[0019] and / or;
[0020] The ventilation ring is disposed within the opening at the second end of the sealing dust cover, and the snap-fit member is disposed on the outer periphery of the second end of the sealing dust cover. The snap-fit member can fix the ventilation ring to the inner periphery of the second end of the sealing dust cover.
[0021] In an optional embodiment, the ventilation ring is elastically deformable, and the snap-fit element is a clamp;
[0022] The snap-fit component enables the sealing dust cover to be snapped onto the outer periphery of the scavenging ring on one side of the first end, while also enabling the scavenging ring to be snapped onto the outer periphery of the front end cover of the cylinder.
[0023] And / or,
[0024] The snap-fit component allows the sealing dust cover to be snapped onto the outer periphery of the scavenging ring on one side of the second end, while also allowing the scavenging ring to be snapped onto the outer periphery of the piston rod joint of the cylinder.
[0025] In an optional embodiment, the ventilation ring is made of plastic or PVC material.
[0026] In an optional embodiment, the inner periphery of the through hole is provided with an internal thread;
[0027] The scavenging ring can engage with the external thread of the front end cover of the cylinder via its internal thread, and / or the scavenging ring can engage with the external thread of the piston rod joint of the cylinder via its internal thread.
[0028] In an optional embodiment, the sealing dust cover is located on one side of the first end and / or the sealing dust cover is located on one side of the second end, and the ventilation ring is integrally formed with the sealing dust cover.
[0029] Secondly, the present invention provides a cylinder with a dustproof component, comprising the cylinder and the cylinder dustproof component as described in any of the foregoing embodiments;
[0030] The piston rod of the cylinder passes through the through hole, and one of the first end and the second end is connected to the front end cover of the cylinder, while the other end can be connected to the connector provided on the piston rod of the cylinder.
[0031] Thirdly, this utility model provides a sanitation vehicle, including a vehicle body, an execution component, and a cylinder with a dustproof component as described in the aforementioned embodiments.
[0032] One end of the cylinder is connected to the vehicle body, and the other end is connected to the actuator to drive the actuator to move.
[0033] The beneficial effects of the cylinder dustproof component, the cylinder with the dustproof component, and the sanitation vehicle provided in this embodiment of the utility model include:
[0034] This application configures a cylinder dustproof assembly as a sealed dust cover and a ventilation ring. The ventilation ring is positioned within an opening at the first end and / or the second end of the sealed dust cover. The ventilation ring has through holes and a ventilation channel circumferentially connected to the external space of the sealed dust cover for air exchange. After the cylinder dustproof assembly is installed on the cylinder, the sealed dust cover blocks fine dust and rainwater, preventing them from affecting the piston rod. The ventilation channel allows air exchange when the sealed dust cover is extended or retracted by the cylinder, eliminating the need for a separate ventilation structure on the cylinder. Overall, this cylinder dustproof assembly offers both superior dustproof performance and versatility. Attached Figure Description
[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 This is a partial structural diagram of a cylinder with a dustproof component provided in this embodiment;
[0037] Figure 2 for Figure 1 Schematic diagram of the cross-section at point AA;
[0038] Figure 3 A partial structural schematic diagram of another cylinder with a dustproof component provided in this embodiment;
[0039] Figure 4 for Figure 3 Schematic diagram of the cross-section at point BB;
[0040] Figure 5 This is a schematic diagram of the air exchange ring of the cylinder dustproof assembly provided in this embodiment.
[0041] Icons: 100-Cylinder dustproof assembly; 110-Sealed dustproof cover; 111-First end; 112-Second end; 113-Bellwall; 114-First mounting tube; 115-Second mounting tube; 130-Ventilation ring; 131-Through hole; 132-Ventilation channel; 133-Ventilation hole; 150-Filter plate; 170-Snap-fit component; 300-Cylinder with dustproof assembly; 310-Cylinder barrel; 320-Front end cover; 330-Piston rod; 340-Connector. Detailed Implementation
[0042] To address the aforementioned issues, existing technologies typically involve installing a retractable, breathable dust cover on the piston rod of the cylinder. However, even with this dust cover, fine dust and rainwater can still enter and affect the piston rod over extended periods. Another approach is to install a retractable, sealed dust cover on the piston rod. However, to ensure the sealed dust cover's extension and retraction are synchronized with the cylinder's, holes need to be drilled in the cylinder's front end cap to allow for ventilation during the dust cover's movement. This sealed dust cover, however, increases the cylinder's cost and has limited versatility.
[0043] How to provide a dust cover that offers both protective performance and versatility has become a pressing technical problem in this field.
[0044] To address the aforementioned problems, this utility model provides a cylinder dustproof component, a cylinder with a dustproof component, and a sanitation vehicle, which has superior dustproof performance while also being versatile, thereby improving the above-mentioned issues.
[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0048] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0049] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0050] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0051] The following describes in detail the overall structure, working principle, and technical effects of the cylinder dustproof component, the cylinder with the dustproof component, and the sanitation vehicle provided by this utility model through embodiments and in conjunction with the accompanying drawings.
[0052] Please refer to Figures 1 to 5This embodiment provides a sanitation vehicle, which includes a vehicle body, an actuator, and a cylinder 300 with a dustproof component. One end of the cylinder 300 with the dustproof component is connected to the vehicle body, and the other end is connected to the actuator to drive the actuator. This sanitation vehicle can be a sweeper, snowplow, or snow removal vehicle. The actuator is selected according to the different types of sanitation vehicles and can be a sweeping disc, a roller sweeper, a suction nozzle, etc.
[0053] Please refer to Figures 1 to 5 The cylinder 300 with dustproof components includes a cylinder and a cylinder dustproof component 100. The cylinder dustproof component 100 is disposed outside the piston rod 330 of the cylinder, and one end is connected to the front end cover 320 of the cylinder, and the other end is connected to the connector 340 of the cylinder disposed on the piston rod 330.
[0054] The cylinder includes a cylinder barrel 310, a front end cap 320, a piston, a piston rod 330, and a connector 340. The piston is installed inside the cylinder barrel 310, and the front end cap 320 is also installed inside the cylinder barrel 310. The piston rod 330 extends into the cylinder barrel 310 from the front end cap 320 and connects to the piston. The connector 340 is connected to the end of the piston rod 330. The connector 340 can be a Y-type connector, a fisheye connector, an I-type connector, etc. The connector 340 is generally installed at the end of the piston rod 330 by means of threads.
[0055] In this embodiment, the cylinder dustproof assembly 100 includes a sealing dustproof cover 110 and a ventilation ring 130. The sealing dustproof cover 110 has a first end 111 and a second end 112 opposite to each other, and is extendable and retractable in the direction from the first end 111 to the second end 112. The ventilation ring 130 is disposed in the opening corresponding to the first end 111 and / or the opening corresponding to the second end 112 of the sealing dustproof cover 110. The ventilation ring 130 is provided with a through hole 131, and a ventilation channel 132 is also provided in the circumferential direction of the ventilation ring 130, which allows the internal space of the sealing dustproof cover 110 to communicate with the external space of the sealing dustproof cover 110. When the cylinder dustproof assembly 100 is installed on the cylinder, the piston rod 330 of the cylinder passes through the through hole 131, one of the first end 111 and the second end 112 is connected to the front end cover 320 of the cylinder, and the other is connected to the connector 340 disposed on the piston rod 330 of the cylinder. When the piston rod 330 of the cylinder extends, the sealing dust cover 110 also extends, and during this process, the ventilation passage 132 draws air inward. When the piston rod 330 of the cylinder retracts, the sealing dust cover 110 shortens, and during this process, the ventilation passage 132 exhausts air outward.
[0056] In this embodiment, the cylinder dustproof assembly 100 is configured as a sealing dust cover 110 and a ventilation ring 130. The ventilation ring 130 is disposed in the opening corresponding to the first end 111 and / or the opening corresponding to the second end 112 of the sealing dust cover 110. The ventilation ring 130 is provided with a through hole 131, and a ventilation channel 132 is also provided in the circumferential direction of the ventilation ring 130 to connect the internal space of the sealing dust cover 110 with the external space of the sealing dust cover 110. After the cylinder dustproof assembly 100 is installed on the cylinder, the sealing dust cover 110 can block fine dust and rainwater from entering, thereby avoiding affecting the piston rod 330 of the cylinder. The ventilation channel 132 can provide ventilation when the sealing dust cover 110 is extended or retracted by the cylinder, eliminating the need for a ventilation structure on the cylinder. Overall, this cylinder dustproof assembly 100 has both superior dustproof performance and versatility.
[0057] Please refer to Figures 1 to 5 In this embodiment, the ventilation channel 132 is a plurality of ventilation holes 133 arranged circumferentially on the ventilation ring 130, and the ventilation holes 133 are opened along the axial direction of the ventilation ring 130.
[0058] In this embodiment, the ventilation channel 132 is set as the ventilation hole 133, which can avoid the sealing dust cover 110 blocking the ventilation hole 133 during installation.
[0059] Of course, in some other embodiments of this application, the ventilation channel 132 may also be a notch provided on the inner or outer periphery of the ventilation ring 130 to achieve ventilation.
[0060] In this embodiment, there are two ventilation holes 133, which are symmetrically arranged around the ventilation ring 130. Of course, the number and spacing of the ventilation holes 133 can also be set according to requirements, and there can be one or more.
[0061] In this embodiment, the cylinder dustproof assembly 100 further includes a filter 150, which is disposed at the air exchange channel 132.
[0062] In this example, a filter 150 is installed at the ventilation channel 132 to filter dust in the air flowing from the ventilation channel 132 into the sealed dust cover 110. The filter 150 can be a sponge sheet.
[0063] In this embodiment, the filter 150 is attached to the outside of the ventilation ring 130 and is provided with corresponding air holes.
[0064] Please refer to Figures 1 to 5 In this embodiment, the sealed dust cover 110 is made of a flexible material. The sealed dust cover 110 made of flexible material can better achieve expansion and contraction and blockage.
[0065] In some embodiments of this application, the sealed dust cover 110 may be made of materials such as rubber.
[0066] In this embodiment, the sealed dust cover 110 includes a bellows 113 and a first mounting tube 114 and a second mounting tube 115 disposed at both ends of the bellows 113. The first mounting tube 114 corresponds to one side of the first end 111 of the sealed dust cover 110, and the second mounting tube 115 corresponds to one side of the second end 112 of the sealed dust cover 110. The inner diameter of the first mounting tube 114 and the inner diameter of the second mounting tube 115 are substantially matched with the outer diameter of the ventilation ring 130. The ventilation ring 130 is installed on the inner periphery of the first mounting tube 114 or the inner periphery of the second mounting tube 115. The first mounting tube 114, the second mounting tube 115, and the bellows 113 are integrally formed.
[0067] In this embodiment, the dustproof assembly further includes a snap-fit member 170. The snap-fit member 170 is disposed on the outer side of the end of the sealed dustproof cover 110 corresponding to the end where the ventilation ring 130 is disposed, so as to connect the sealed dustproof cover 110 to the piston rod 330 connector 340 of the cylinder or the front end cover 320 of the cylinder.
[0068] Please refer to Figures 1 to 5 In this embodiment, a snap-fit connector 170 is provided, which can be used to fix the sealed dust cover 110 to the cylinder, making assembly more convenient.
[0069] In one embodiment of this application, the ventilation ring 130 and the sealing dust cover 110 are separately disposed. The ventilation ring 130 is disposed inside the opening at the first end 111 of the sealing dust cover 110. The snap-fit member 170 is disposed on the outer periphery of the first end 111 of the sealing dust cover 110, and the snap-fit member 170 can fix the ventilation ring 130 to the inner periphery of the first end 111 of the sealing dust cover 110.
[0070] That is, the ventilation ring 130 is disposed on the inner side of the first mounting tube 114, and the snap fastener 170 is disposed on the outer periphery of the first mounting tube 114. The snap fastener 170 can fix the ventilation ring 130 on the inner periphery of the first connecting tube.
[0071] Taking the connection of one side of the ventilation ring 130 of the sealing dust cover 110 to the connector 340 as an example, during assembly, the connector 340 connecting the end of the piston rod 330 can be removed first. Then, the second end 112 of the sealing dust cover 110 is installed from the end of the piston rod 330 to the cylinder front cover 320, and the end of the piston rod 330 passes through the through hole 131. The second end 112 is then fixedly connected to the cylinder front cover 320. After that, the connector 340 is installed on the end of the piston rod 330, and the first end 111 of the sealing dust cover 110 is moved towards the connector 340, bringing the ventilation ring 130 with it, and the ventilation ring 130 is fixedly connected to the connector 340.
[0072] In some other embodiments of this application, the ventilation ring 130 is disposed in the opening of the sealing dust cover 110 at the second end 112, and the snap fastener 170 is disposed on the outer periphery of the sealing dust cover 110 at the second end 112. The snap fastener 170 can fix the ventilation ring 130 to the inner periphery of the second end 112 of the sealing dust cover 110.
[0073] That is, the ventilation ring 130 is located inside the second mounting pipe 115, and the snap fastener 170 is located on the outer periphery of the second mounting pipe 115. The snap fastener 170 can fix the ventilation ring 130 to the inner periphery of the second connecting pipe.
[0074] Taking the connection of one side of the venting ring 130 of the sealing dust cover 110 to the front end cover 320 of the cylinder as an example, during assembly, first remove the connector 340 connecting the end of the piston rod 330. Then, install one side of the second end 112 of the sealing dust cover 110 from the end of the piston rod 330 to the front end cover 320 of the cylinder. At this time, the end of the piston rod 330 first passes through the through hole of the venting ring 130 of the second end 112, and then passes through the first end 111. Then, fix the venting ring 130 to the front end cover 320 of the cylinder. After that, install the connector 340 on the end of the piston rod 330, and then move the first end 111 of the sealing dust cover 110 toward the connector 340 and fix it to the connector 340.
[0075] Of course, in other embodiments of this application, the number of ventilation rings 130 includes two, and the number of snap-fit members 170 includes two. One ventilation ring 130 is disposed inside the dust cover at the first end 111, and the other ventilation ring 130 is disposed inside the dust cover at the second end 112. One snap-fit member 170 is disposed outside the dust cover at the first end 111, and the other snap-fit member 170 is disposed outside the dust cover at the second end 112.
[0076] That is, ventilation is provided on the inner side of the first connecting pipe and the inner periphery of the second connecting pipe, and snap-fit parts 170 are provided on the outer periphery of the first connecting pipe and the second connecting pipe.
[0077] During assembly, the connector 340 connecting the piston rod 330 end can be removed first. Then, the second end 112 of the sealing dust cover 110 is installed from the piston rod 330 end to the cylinder front cover 320. At this time, the piston rod 330 end first passes through the through hole of the scavenging ring 130 of the second end 112, and then through the through hole of the scavenging ring 130 of the first end 111. Then, the scavenging ring 130 is fixedly connected to the cylinder front cover 320. After that, the connector 340 is installed on the piston rod 330 end, and then the first end 111 of the sealing dust cover 110, carrying the scavenging ring 130, is moved towards the connector 340, and the scavenging ring 130 is fixed to the connector 340.
[0078] Furthermore, the scavenging ring 130 is elastically deformable, and the snap-fit element 170 is a clamp. The scavenging ring 130 is located on the inner periphery of the opening at the first end 111, and the clamp is located on the outer periphery of the first opening. The inner diameter of the through hole 131 of the scavenging ring 130 matches the outer diameter of the cylinder front cover 320. The snap-fit element 170 allows the sealing dust cover 110 located on one side of the first end 111 to be snapped onto the outer periphery of the scavenging ring 130, while also allowing the scavenging ring 130 to deform and be snapped onto the outer periphery of the cylinder front cover 320.
[0079] During assembly, the ventilation ring 130 can be fitted onto the outer periphery of the front cover 320 through the through hole 131, and then the first end 111 of the dust cover and the ventilation ring 130 can be constrained from the outside by the clamp, so that the three can be fixed together.
[0080] Please refer to Figures 1 to 5 Furthermore, the scavenging ring 130 is elastically deformable, and the snap-fit element 170 is a clamp. The scavenging ring 130 is located on the inner periphery of the opening at the second end 112, and the clamp is located on the outer periphery of the second opening. The inner diameter of the through hole 131 of the scavenging ring 130 matches the outer diameter of the cylinder connector 340. The snap-fit element 170 allows the sealing dust cover 110 located on one side of the second end 112 to be snapped onto the outer periphery of the scavenging ring 130, while also allowing the scavenging ring 130 to deform and be snapped onto the outer periphery of the cylinder connector 340.
[0081] During assembly, the ventilation ring 130 can be fitted onto the outer periphery of the connector 340 through the through hole 131, and then the second end 112 of the dust cover and the ventilation ring 130 can be constrained from the outside by the clamp, so that the three can be fixed together.
[0082] In this embodiment, the ventilation ring 130 is made of plastic or PVC material. It is deformable and easy to manufacture and assemble.
[0083] It should be noted that the through hole provided in the scavenging ring 130 can be fitted onto the outer periphery of the cylinder front cover 320 or the outer periphery of the cylinder connector 340 by means of interference fit.
[0084] Because some cylinders have external threads on the outer periphery of the connector 340 and / or the outer periphery of the front cover 320, the deformable scavenging ring 130 provided in the above example can be used for such cylinders, or the scavenging ring 130 with internal threads provided in the following embodiments can be used.
[0085] In some other embodiments of this application, the inner periphery of the through hole 131 is provided with an internal thread. The scavenging ring 130 can engage with the external thread of the front end cover 320 of the cylinder through the internal thread, and / or, the scavenging ring 130 can engage with the external thread of the piston rod 330 connector 340 of the cylinder through the internal thread.
[0086] In this embodiment, an internal thread is provided on the periphery of the through hole of the ventilation ring 130 to facilitate installation.
[0087] It should be noted that whether the ventilation ring 130 is set at the periphery of the opening at the first end 111 of the sealed dust cover 110, the ventilation ring 130 is set at the opening at the second end 112, or the ventilation ring 130 is set at both ends, can be set according to the ventilation requirements. This embodiment does not make specific limitations.
[0088] In another embodiment, a ventilation ring 130 is integrally formed with the sealing dust cover 110 on one side of the first end 111 and / or on one side of the sealing dust cover 110 on the second end 112.
[0089] In this embodiment, the ventilation ring and the sealing dust cover 110 are integrally molded, which facilitates assembly and manufacturing. For example, they can be integrally molded by injection molding, or the ventilation ring 130 can be manufactured first, and then the sealing dust cover 110 can be injection molded onto the outside of the ventilation ring 130.
[0090] In summary, this embodiment sets the cylinder dustproof assembly 100 as a sealing dustproof cover 110 and a ventilation ring 130. The ventilation ring 130 is disposed in the opening corresponding to the first end 111 and / or the opening corresponding to the second end 112 of the sealing dustproof cover 110. The ventilation ring 130 has a through hole 131 for the piston rod 330 of the cylinder to pass through, and the circumferential direction of the ventilation ring 130 is also provided with a ventilation channel 132 that connects the internal space of the sealing dustproof cover 110 with the external space of the sealing dustproof cover 110. After the cylinder dustproof assembly 100 is installed on the cylinder, the sealing dustproof cover 110 can isolate fine dust and rainwater from the outside, thereby avoiding affecting the piston rod 330 of the cylinder. The ventilation channel 132 can ventilate when the sealing dustproof cover 110 is extended and retracted by the cylinder, eliminating the need to set a ventilation structure on the cylinder. Overall, the cylinder dustproof component 100 has both excellent dustproof performance and versatility.
[0091] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A cylinder dustproof assembly, characterized in that, The cylinder dustproof assembly (100) includes a sealed dustproof cover (110) and a ventilation ring (130); The sealed dust cover (110) has a first end (111) and a second end (112) opposite to each other, and is capable of extending and retracting from the first end (111) toward the second end (112); The ventilation ring (130) is disposed in the opening corresponding to the first end (111) and / or the opening corresponding to the second end (112) of the sealing dust cover (110). The ventilation ring (130) is provided with a through hole (131), and the ventilation ring (130) is also provided with a ventilation channel (132) in the circumferential direction. The ventilation channel (132) enables the internal space of the sealing dust cover (110) to communicate with the external space of the sealing dust cover (110).
2. The cylinder dustproof assembly according to claim 1, characterized in that, The ventilation channel (132) consists of a plurality of ventilation holes (133) arranged circumferentially on the ventilation ring (130), and the ventilation holes (133) are opened along the axial direction of the ventilation ring (130). and / or; The dustproof assembly also includes a filter (150) disposed at the ventilation channel (132); and / or; The sealed dust cover (110) is made of flexible material.
3. The cylinder dustproof assembly according to claim 1 or 2, characterized in that, The dustproof assembly also includes a snap-fit connector (170); The snap-fit component (170) is disposed on the outer side of the end of the sealing dust cover (110) corresponding to the ventilation ring (130) so as to connect the sealing dust cover (110) to the piston rod (330) connector (340) of the cylinder or the front end cover (320) of the cylinder.
4. The cylinder dustproof assembly according to claim 3, characterized in that, The ventilation ring (130) and the sealing dust cover (110) are separately provided; The ventilation ring (130) is disposed in the opening of the sealing dust cover (110) located at the first end (111), and the snap-fit member (170) is disposed on the outer periphery of the sealing dust cover (110) located at the first end (111). The snap-fit member (170) can fix the ventilation ring (130) to the inner periphery of the first end (111) of the sealing dust cover (110). and / or; The ventilation ring (130) is disposed in the opening of the sealing dust cover (110) at the second end (112), and the snap-fit member (170) is disposed on the outer periphery of the sealing dust cover (110) at the second end (112). The snap-fit member (170) can fix the ventilation ring (130) to the inner periphery of the second end (112) of the sealing dust cover (110).
5. The cylinder dustproof assembly according to claim 4, characterized in that, The ventilation ring (130) is elastically deformable, and the snap-fit component (170) is a clamp; The snap-fit component (170) can hold the sealing dust cover (110) on one side of the first end (111) against the outer periphery of the scavenging ring (130) while also allowing the scavenging ring (130) to deform and hold against the outer periphery of the front end cover (320) of the cylinder. And / or, The snap-fit component (170) can hold the sealing dust cover (110) on one side of the second end (112) against the outer periphery of the scavenging ring (130), while also deforming the scavenging ring (130) to hold it against the outer periphery of the piston rod (330) joint (340) of the cylinder.
6. The cylinder dustproof assembly according to claim 5, characterized in that, The ventilation ring (130) is made of plastic or PVC material.
7. The cylinder dustproof assembly according to claim 3, characterized in that, The inner periphery of the through hole (131) is provided with an internal thread; The scavenging ring (130) can engage with the external thread of the front end cover (320) of the cylinder through the internal thread, and / or the scavenging ring (130) can engage with the external thread of the piston rod (330) joint (340) of the cylinder through the internal thread.
8. The cylinder dustproof assembly according to claim 2, characterized in that, The sealing dust cover (110) is located on one side of the first end (111) and / or the sealing dust cover (110) is located on one side of the second end (112) and the ventilation ring (130) is integrally formed with the sealing dust cover (110).
9. A cylinder with a dustproof component, characterized in that, Includes a cylinder and a cylinder dustproof assembly as described in any one of claims 1-8; The piston rod (330) of the cylinder passes through the through hole (131), and one of the first end (111) and the second end (112) is connected to the front end cover (320) of the cylinder, while the other end can be connected to the connector (340) provided on the piston rod (330) of the cylinder.
10. A sanitation vehicle, characterized in that, Includes the vehicle body, the actuator, and the cylinder with dustproof assembly as described in claim 9; One end of the cylinder is connected to the vehicle body, and the other end is connected to the actuator to drive the actuator to move.