Piston mechanism, opening and closing device for vent, and operation method of opening and closing device

Abstract

The present application belongs to the field of hydraulic technology and pneumatic technology, and particularly relates to a piston mechanism, an opening and closing device for a ventilation opening, and a working method of the opening and closing device. The piston mechanism comprises: a first piston cylinder and a second piston cylinder which are symmetrically arranged; a piston rod, both ends of which respectively extend into the first piston cylinder and the second piston cylinder; a transmission assembly, an input end of which is connected with the piston rod, and an output end of which is connected with a first bevel gear; a pneumatic assembly, which is respectively communicated with the first piston cylinder and the second piston cylinder; and a control module, which is electrically connected with the pneumatic assembly and is configured to adjust the pressure in the corresponding piston cylinder by controlling the pneumatic assembly to drive the piston rod to move towards the first piston cylinder or the second piston cylinder, i.e. to drive the first bevel gear of the transmission assembly to rotate forward or reversely. The piston mechanism ensures the smoothness of rotation by cleaning the meshing surface of the first bevel gear during the rotation of the first bevel gear.

Description

TECHNICAL FIELD

[0001] The present application belongs to the general hydraulic and pneumatic technical field, and particularly relates to a fluid actuating device for moving a component from one position to another, and more particularly to a piston mechanism, an opening and closing device for a ventilation port, and a working method of the opening and closing device. BACKGROUND

[0002] The ventilation port is a normally open door, and a driver is generally used to open and close the normally open door in order to save labor.

[0003] In the related art, the driving end of the driver adopts a bevel gear output, the hinge mechanism of the normally open door adopts a matched bevel gear input, and the two bevel gears mesh and rotate; however, since it is a normally open door, dust will accumulate at the meshing position of the two bevel gears for a long time, resulting in unsmooth meshing and rotation during use.

[0004] Therefore, how to solve the technical problem of unsmooth meshing and rotation of the bevel gears during use of the normally open door is an urgent problem for those skilled in the art.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. SUMMARY

[0006] The embodiments of the present application at least provide a piston mechanism, an opening and closing device for a ventilation port, and a working method of the opening and closing device.

[0007] In a first aspect, the embodiments of the present application provide a piston mechanism, comprising: a first piston cylinder and a second piston cylinder arranged symmetrically; a piston rod, both ends of which extend into the first piston cylinder and the second piston cylinder, respectively; a transmission assembly, an input end of which is connected with the piston rod, and an output end of which is connected with a first bevel gear; a pneumatic assembly, which is in communication with the first piston cylinder and the second piston cylinder, respectively; a cleaning assembly; and a control module, which is electrically connected with the pneumatic assembly, is configured to adjust the pressure in the corresponding piston cylinder by controlling the pneumatic assembly to drive the piston rod to move towards the first piston cylinder or the second piston cylinder, i.e., to drive the first bevel gear of the transmission assembly to rotate forward or reverse; and in the process of moving the piston rod, the piston rod extrudes the cleaning assembly to clean the meshing surface on the rotating side of the first bevel gear.

[0008] In an alternative embodiment, the cleaning assembly comprises: a first cleaning member arranged in the first piston barrel and a second cleaning member arranged in the second piston barrel; wherein the two ends of the piston rod are connected with the first cleaning member and the second cleaning member respectively; during the movement towards the first piston barrel, the piston rod drives the first bevel gear to rotate in a positive direction, and at the same time, the piston rod extrudes the first cleaning member, so that the first cleaning member blows air and applies lubricating oil to the meshing surface on the rotating side of the first bevel gear in sequence; and during the movement towards the second piston barrel, the piston rod drives the first bevel gear to rotate in a reverse direction, and at the same time, the piston rod extrudes the second cleaning member, so that the second cleaning member applies lubricating oil and sprays oil removal agent to the meshing surface on the rotating side of the first bevel gear in sequence.

[0009] In an alternative embodiment, the control module is configured to control the piston rod to move towards the first piston barrel first, and then control the piston rod to move towards the second piston barrel to reset.

[0010] In an alternative embodiment, the first cleaning member and the second cleaning member each comprise: a box body fixedly arranged in the corresponding piston barrel; and a guide shaft arranged in the box body and having a first push plate and a second push plate sleeved thereon, the first push plate and the second push plate separating the box body to form a first storage cavity and a second storage cavity; wherein the first push plate is arranged close to the piston rod, the second push plate is arranged away from the piston rod, and the piston rod is connected with the first push plate through a driving rod; during the movement towards the first piston barrel or the second piston barrel, the piston rod first drives the first push plate to extrude the object in the first storage cavity, and then drives the first push plate and the second push plate to move synchronously to extrude the object in the second storage cavity; wherein, in the first cleaning member, the first storage cavity stores air and the second storage cavity stores lubricating oil; and in the second cleaning member, the first storage cavity stores lubricating oil and the second storage cavity stores oil removal agent.

[0011] In an alternative embodiment, the first push plate is provided with a plurality of equal-height blocks on the side facing the second push plate; the second push plate is provided with a spring on the side away from the first push plate, and the spring is sleeved on the guide shaft; wherein during the extrusion of the first push plate on the first storage cavity, the spring abuts against the second push plate.

[0012] In an alternative embodiment, the transmission assembly comprises: a first rotating shaft having a gear arranged on the shaft body thereof; and a second rotating shaft connected with the first rotating shaft through a transmission rod; wherein the gear is connected with the piston rod, the first bevel gear is connected with the second rotating shaft, and the piston rod drives the first rotating shaft to rotate by moving, the rotation of the first rotating shaft drives the second rotating shaft to rotate through the transmission rod, and the rotation of the second rotating shaft drives the first bevel gear to rotate.

[0013] In an alternative embodiment, the piston rod is provided with a flat tooth in the axial direction; the flat tooth is engaged with a gear; the bottom of the first piston cylinder is provided with a first air inlet; the bottom of the second piston cylinder is provided with a second air inlet; the first air inlet and the second air inlet are respectively connected with independent air pumps.

[0014] In the second aspect, the disclosure provides an opening and closing device for an air vent, which comprises a ventilation opening and a hinge mechanism, wherein the hinge mechanism comprises a third rotating shaft, a connecting rod group and a second bevel gear; one end of the connecting rod group is connected with the third rotating shaft, and the other end is connected with the ventilation opening; the second bevel gear is arranged at the end of the third rotating shaft and is engaged with the first bevel gear; the control module is configured to drive the piston rod to move towards the first piston cylinder to open the ventilation opening, while the piston rod extrudes the first cleaning element to sequentially blow and clean and apply lubricating oil to the rotating side of the first bevel gear; and the control module is further configured to drive the piston rod to move towards the second piston cylinder to close the ventilation opening, while the piston rod extrudes the second cleaning element to sequentially apply lubricating oil and spray oil-removing agent to the rotating side of the first bevel gear.

[0015] In an alternative embodiment, the locking mechanism comprises a locking cylinder, the end of the locking cylinder is provided with a locking column; the transmission rod is provided with a locking hole; the locking cylinder drives the locking column to extend into the locking hole to achieve locking.

[0016] In the third aspect, the disclosure provides a working method of an opening and closing device for an air vent, which comprises: the control module controls the piston rod to move towards the first piston cylinder to open the ventilation opening, while the piston rod extrudes the first cleaning element to sequentially blow and clean and apply lubricating oil to the rotating side of the first bevel gear; the control module controls the piston rod to move towards the second piston cylinder to close the ventilation opening, while the piston rod extrudes the second cleaning element to sequentially apply lubricating oil and spray oil-removing agent to the rotating side of the first bevel gear.

[0017] The piston mechanism, the opening and closing device for the air vent and the working method of the opening and closing device have the following beneficial effects: in the process of opening the ventilation opening, the first cleaning element is extruded to sequentially blow and clean and apply lubricating oil to the rotating side of the first bevel gear, so that the dirt is blown as clean as possible, and then the lubricating oil is applied to the first bevel gear to ensure smooth rotation of the first bevel gear; and in the process of closing the ventilation opening, the second cleaning element is extruded to sequentially apply lubricating oil and spray oil-removing agent to the rotating side of the first bevel gear, so that the lubricating oil on the first bevel gear is removed clean to prevent the lubricating oil from being exposed for a long time to form lumps and affect the rotation of the first bevel gear next time.

[0018] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0019] To make the above objectives, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A cross-sectional structure schematic diagram of a piston mechanism provided by the embodiment of the present disclosure;

[0022] Figure 2 A structure schematic diagram when a piston rod moves to an end provided by the embodiment of the present disclosure;

[0023] Figure 3 A structure schematic diagram when a piston rod extrudes a first storage cavity provided by the embodiment of the present disclosure;

[0024] Figure 4 A structure schematic diagram when a piston rod extrudes a second storage cavity provided by the embodiment of the present disclosure;

[0025] Figure 5 A structure schematic diagram of a transmission assembly provided by the embodiment of the present disclosure;

[0026] Figure 6 A structure schematic diagram of an opening and closing device for a ventilation opening provided by the embodiment of the present disclosure.

[0027] In the drawings:

[0028] A first piston cylinder 1, a first inflation port 11;

[0029] A second piston cylinder 2, a second inflation port 21;

[0030] A piston rod 3, a driving rod 31, a flat tooth 32;

[0031] A transmission assembly 4, a first bevel gear 41, a first rotating shaft 42, a gear 43, a second rotating shaft 44, a transmission rod 45, a locking hole 451;

[0032] A door plate 5;

[0033] First cleaning member 6, housing 61, first storage chamber 611, second storage chamber 612, first push plate 62, equal height block 621, second push plate 63, guide shaft 64, spring 65, first guide tube assembly 66;

[0034] A second cleaning member 7 and a second flow guide tube assembly 71;

[0035] Hinge mechanism 8, third rotating shaft 81, connecting rod assembly 82, second bevel gear 83;

[0036] Locking cylinder 9, locking column 91. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe the technical content.

[0039] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0040] like Figure 1 As shown, at least one embodiment provides a piston mechanism, which includes: a first piston cylinder 1 and a second piston cylinder 2 arranged symmetrically; a piston rod 3, both ends of which extend into the first piston cylinder 1 and the second piston cylinder 2 respectively; a transmission assembly 4, an input end of which is connected to the piston rod 3, and an output end of which is connected to the first bevel gear 41; a pneumatic assembly, which is connected to the first piston cylinder 1 and the second piston cylinder 2 respectively; a cleaning assembly; and a control module, which is electrically connected to the pneumatic assembly and is configured to adjust the pressure in the corresponding piston cylinder by controlling the pneumatic assembly to push the piston rod 3 toward the first piston cylinder 1 or the second piston cylinder 2, that is, to drive the first bevel gear 41 of the transmission assembly 4 to rotate forward or reverse; and during the movement of the piston rod 3, the piston rod 3 squeezes the cleaning assembly to clean the meshing surface of the rotating side of the first bevel gear 41.

[0041] In the embodiment, the pneumatic assembly is composed of two independent air pumps, the first air pump is connected with the first air inlet 11 of the first piston cylinder 1, the second air pump is connected with the second air inlet 21 of the second piston cylinder 2, and the first air pump and the second air pump can be inflated and deflated; specifically, when the air pressure in the second piston cylinder 2 is greater than the air pressure in the first piston cylinder 1, the piston rod 3 moves towards the first piston cylinder 1, at this time the first bevel gear 41 rotates forward; the piston mechanism ensures that no matter whether the first bevel gear 41 rotates forward or reverses, the meshing surface on the rotating side of the first bevel gear 41 can be cleaned, and the required cleaning effect is achieved by using different cleaning substances and the order of use.

[0042] In some embodiments, the cleaning assembly includes a first cleaning element 6 arranged in the first piston cylinder 1 and a second cleaning element 7 arranged in the second piston cylinder 2; wherein the two ends of the piston rod 3 are respectively connected with the first cleaning element 6 and the second cleaning element 7; in the process of moving the piston rod 3 towards the first piston cylinder 1, the piston rod 3 drives the gear 41 to rotate forward, at the same time, the piston rod 3 extrudes the first cleaning element 6, so that the first cleaning element 6 is sequentially air cleaned and lubricating oil is applied to the rotating side of the first bevel gear 41; and in the process of moving towards the second piston cylinder 2, the piston rod 3 drives the first bevel gear 41 to reverse, at the same time, the piston rod 3 extrudes the second cleaning element 7, so that the second cleaning element 7 is sequentially applied with lubricating oil and oil removal agent to the rotating side of the first bevel gear 41.

[0043] Optionally, the first bevel gear 41 of the piston mechanism is used to drive the door plate 5 to open and close; when the first bevel gear 41 rotates forward, it drives the door plate 5 to open, since the door plate 5 is a normally open door plate 5, dust and other debris will adhere to the connection between the door plate 5 and the first bevel gear 41 due to long-term non-use, so in the process of the first bevel gear 41 rotating forward, the first cleaning element 6 is extruded to first clean the rotating side of the first bevel gear 41 by blowing air, so that the debris is blown as clean as possible, and then the first bevel gear 41 is applied with lubricating oil, so as to ensure smooth rotation of the first bevel gear 41; when the first bevel gear 41 reverses, it drives the door plate 5 to close, at this time, the second cleaning element 7 is extruded to first apply lubricating oil to the rotating side of the first bevel gear 41, so as to ensure smooth rotation of the first bevel gear 41, and then the first bevel gear 41 is sprayed with oil removal agent to remove the lubricating oil on the first bevel gear 41, so as to prevent the lubricating oil from being exposed for a long time to cause caking and affect the rotation of the first bevel gear 41 next time, that is, it ensures that no matter whether the first bevel gear 41 rotates forward or reverses, the meshing surface on the rotating side of the first bevel gear 41 can be cleaned, and different effects are achieved by using different cleaning substances.

[0044] In some embodiments, the control module is configured to first control the piston rod 3 to move toward the first piston cylinder 1 and then control the piston rod 3 to return to the second piston cylinder 2, that is, first rotate forward to open the door panel 5 and then reverse to close the door panel 5.

[0045] like Figure 2 As shown, in some embodiments, the first cleaning member 6 and the second cleaning member 7 both include: a box body 61, fixedly arranged in the corresponding piston cylinder; and a guide shaft 64, arranged in the box body 61, and sleeved with a first push plate 62 and a second push plate 63, the first push plate 62 and the second push plate 63 separate the box body 61 into a first storage chamber 611 and a second storage chamber 612; wherein, the first push plate 62 is arranged close to the piston rod 3, and the second push plate 63 is arranged away from the piston rod 3, the first storage chamber 611 formed by separation is close to the piston rod 3, and the second storage chamber 612 formed by separation is away from the piston rod 3, and the piston rod 3 is connected to the first push plate 62 through the drive rod 31.

[0046] Specifically, such as Figures 2 to 4 As shown, in order to open the door panel 5, the piston rod 3 needs to move toward the first piston cylinder 1. During the movement, the piston rod 3 squeezes the first cleaning member 6, that is, drives the first push plate 62 to move, thereby squeezing the first storage chamber 611 storing air, and uses the first bevel gear 41 for air blowing cleaning; when the first push plate 62 moves a certain distance, the first push plate 62 presses against the second push plate 63, thereby driving the second push plate 63 to move synchronously. At this time, the first storage chamber 611 is no longer squeezed, and what is squeezed is the second storage chamber 612 storing lubricating oil.

[0047] Specifically, in the process of closing the door panel 5, its working principle is similar to that of opening the door panel 5, except that the piston rod 3 squeezes the second cleaning member 7, and the first storage chamber 611 of the second cleaning member 7 is used to store lubricating oil, and the second storage chamber 612 is used to store degreaser.

[0048] like Figure 3 、 Figure 6 As shown, in some embodiments, the first storage chamber 611 of the first cleaning member 6 is connected to a guide tube, and the second storage chamber 612 is also connected to a guide tube. The two guide tubes are combined to form a first guide tube group 66, which extends to the first bevel gear 41 and is aligned with the forward rotation side of the first bevel gear 41; similarly, the second cleaning member 7 is provided with a second guide tube group 71, which is aligned with the reverse rotation side of the first bevel gear 41; wherein, a one-way valve is provided in each guide tube.

[0049] like Figure 3As shown, in some embodiments, in order to achieve the function of squeezing the first storage cavity 611 first and then squeezing the second storage cavity 612, a plurality of equal-height blocks 621 are provided on the side of the first push plate 62 facing the second push plate 63, and a spring 65 is provided on the side of the second push plate 63 away from the first push plate 62, and the spring 65 is sleeved on the guide shaft 64; this design can prevent the second push plate 63 from retreating when the first storage cavity 611 is under pressure, and will only follow the movement of the first push plate 62 when it is in contact with the equal-height blocks 621.

[0050] like Figure 5 As shown, in some embodiments, the transmission assembly 4 includes: a first rotating shaft 42, on which a gear 43 is provided; and a second rotating shaft 44, which is connected to the first rotating shaft 42 through a transmission rod 45; wherein, the gear 43 is connected to the piston rod 3, and the first bevel gear 41 is connected to the second rotating shaft 44.

[0051] In some embodiments, the piston rod 3 is provided with flat teeth 32 along the axial direction; the flat teeth 32 are engaged with the gear 43 .

[0052] Specifically, the piston rod 3 drives the first rotating shaft 42 to rotate by moving, the rotation of the first rotating shaft 42 drives the second rotating shaft 44 to rotate through the transmission rod 45, and the rotation of the second rotating shaft 44 drives the first bevel gear 41 to rotate.

[0053] like Figure 6 As shown, at least one embodiment also provides an opening and closing device for a vent, which includes: a piston mechanism as described above; a door panel 5; and a hinge mechanism 8, which includes: a third rotating shaft 81, a connecting rod group 82 and a second bevel gear 83; wherein one end of the connecting rod group 82 is connected to the third rotating shaft 81, and the other end is connected to the door panel 5; the second bevel gear 83 is arranged at the end of the third rotating shaft 81 and meshes with the first bevel gear 41; the control module is configured to drive the piston rod 3 toward the first piston cylinder 1 by controlling the pneumatic component to open the door panel 5, and at the same time the piston rod 3 squeezes the first cleaning member 6 to blow air to clean and apply lubricating oil to the rotating side of the first bevel gear 41 in turn; and the control module is also configured to drive the piston rod 3 toward the second piston cylinder 2 by controlling the pneumatic component to close the door panel 5, and at the same time the piston rod 3 squeezes the second cleaning member 7 to apply lubricating oil and spray degreaser to the rotating side of the first bevel gear 41 in turn.

[0054] Specifically, the first bevel gear 41 will drive the second bevel gear 83 to rotate in either forward or reverse rotation, and the meshing surfaces of the two are both facing the rotating side, so no matter whether it is forward or reverse rotation, only the meshing surface on the rotating side needs to be cleaned.

[0055] In some embodiments, the ventilation opening opening and closing device further comprises a locking mechanism, which comprises a locking cylinder 9, an end of the locking cylinder 9 is provided with a locking column 91; a locking hole 451 is formed in the transmission rod 45; the locking cylinder 9 drives the locking column to extend into the locking hole 451 to realize locking.

[0056] Specifically, the locking mechanism can limit the position of the opened door plate 5 and prevent it from shaking under force.

[0057] For the specific structure and implementation process of the piston mechanism, refer to the relevant description in the above embodiments, which will not be repeated here.

[0058] At least one embodiment also provides a working method of the ventilation opening opening and closing device, which comprises: the control module controls the piston rod 3 to move towards the first piston cylinder 1 to open the door plate 5, while the piston rod 3 extrudes the first cleaning piece 6 to blow and clean, apply lubricating oil to the rotating side of the first bevel gear 41 in sequence; the control module controls the piston rod 3 to move towards the second piston cylinder 2 to close the door plate 5, while the piston rod 3 extrudes the second cleaning piece 7 to apply lubricating oil and spray oil-removing agent to the rotating side of the first bevel gear 41 in sequence.

[0059] In summary, the piston mechanism, the ventilation opening opening and closing device and the working method of the opening and closing device blow and clean the rotating side of the first bevel gear 41 by extruding the first cleaning piece 6 during the opening of the door plate 5, so as to blow away as much dirt as possible, and then apply lubricating oil to the first bevel gear 41 to ensure smooth rotation of the first bevel gear 41; and during the closing of the door plate 5, the second cleaning piece 7 is extruded to apply lubricating oil to the rotating side of the first bevel gear 41, so as to ensure smooth rotation of the first bevel gear 41, and then spray oil-removing agent to the first bevel gear 41 to remove the lubricating oil on the first bevel gear 41, so as to prevent the lubricating oil from being exposed for a long time to form lumps and affect the rotation of the first bevel gear 41 next time.

[0060] In this document, when it is mentioned that a first component is located on a second component, it can mean that the first component can be directly formed on the second component, or a third component can be interposed between the first component and the second component.

[0061] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to" or "coupled to" another element or layer, it can be directly on, engaged, connected, attached or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0062] In this document, example embodiments of the disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of," when preceding a list of two or more items, modify the entire list of items and do not modify the individual items of the list.

[0063] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order

[0064] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places throughout this specification do not necessarily all refer to the same embodiment. As used herein, the term "example" or "exemplary" means "serving as an example, instance, or illustration." Any implementation, aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects or designs. Rather, the term "example" or "exemplary" is intended to present concepts in a concrete manner.

[0065] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connecting" should be interpreted broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, terms such as "first", "second" and other numerical terms are used herein and do not imply order or sequence unless specifically indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0067] Spatially relative terms, such as "inner", "outer", "below", "below", "lower", "above", "upper", and the like, can be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the drawings. In addition to the orientation depicted in the drawings, the spatially relative terms can be intended to cover different orientations of the device in use or operation. For example, if the device in the drawing is turned over, the element described as "below" or "under" the other element or feature will be oriented "above" the other element or feature. Therefore, the example term "below" can cover the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0068] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0069] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant personnel can make various changes and modifications without deviating from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined by the scope of the claims.

Claims

1. A piston mechanism, characterized in that: include: A first piston cylinder (1) and a second piston cylinder (2) are symmetrically arranged; A piston rod (3), both ends of which extend into the first piston cylinder (1) and the second piston cylinder (2) respectively; A transmission assembly (4), the input end of which is connected to the piston rod (3), and the output end of which is connected to the first bevel gear (41); A pneumatic assembly is connected to the first piston cylinder (1) and the second piston cylinder (2) respectively; Clean components; as well as A control module electrically connected to the pneumatic assembly and configured to adjust the pressure in the corresponding piston cylinder by controlling the pneumatic assembly to push the piston rod (3) toward the first piston cylinder (1) or the second piston cylinder (2), that is, to drive the first bevel gear (41) of the transmission assembly (4) to rotate forward or reverse; and During the movement of the piston rod (3), the piston rod (3) squeezes the cleaning component to clean the meshing surface of the rotating side of the first bevel gear (41); The cleaning assembly comprises: a first cleaning member (6) arranged in the first piston cylinder (1) and a second cleaning member (7) arranged in the second piston cylinder (2); wherein The two ends of the piston rod (3) are respectively connected to the first cleaning member (6) and the second cleaning member (7); In the process of moving toward the first piston cylinder (1), the piston rod (3) drives the first bevel gear (41) to rotate forward, and at the same time, the piston rod (3) squeezes the first cleaning member (6), so that the first cleaning member (6) blows air to clean and lubricate the meshing surface of the rotating side of the first bevel gear (41); and During the movement toward the second piston cylinder (2), the piston rod (3) drives the first bevel gear (41) to rotate in the reverse direction, and at the same time, the piston rod (3) squeezes the second cleaning member (7), so that the second cleaning member (7) sequentially applies lubricating oil and sprays degreasing agent to the meshing surface of the rotating side of the first bevel gear (41); The transmission assembly (4) comprises: A first rotating shaft (42) having a gear (43) disposed on its shaft; and A second rotating shaft (44) is connected to the first rotating shaft (42) via a transmission rod (45); Wherein, the gear (43) is connected to the piston rod (3), and the first bevel gear (41) is connected to the second rotating shaft (44); and The piston rod (3) drives the first rotating shaft (42) to rotate by moving, the rotation of the first rotating shaft (42) drives the second rotating shaft (44) to rotate via the transmission rod (45), and the rotation of the second rotating shaft (44) drives the first bevel gear (41) to rotate.

2. The piston mechanism according to claim 1, wherein: The control module is configured to first control the piston rod (3) to move toward the first piston cylinder (1), and then control the piston rod (3) to move back toward the second piston cylinder (2).

3. The piston mechanism according to claim 2, wherein: The first cleaning member (6) and the second cleaning member (7) both comprise: A box body (61) is fixedly arranged in the corresponding piston cylinder; and The guide shaft (64) is arranged in the box body (61) and is sleeved with a first push plate (62) and a second push plate (63). The first push plate (62) and the second push plate (63) separate the box body (61) into a first storage chamber (611) and a second storage chamber (612); wherein The first push plate (62) is arranged close to the piston rod (3), the second push plate (63) is arranged away from the piston rod (3), and the piston rod (3) is connected to the first push plate (62) via a driving rod (31); During the process of moving toward the first piston cylinder (1) or the second piston cylinder (2), the piston rod (3) first drives the first push plate (62) to squeeze the object in the first storage chamber (611), and then drives the first push plate (62) and the second push plate (63) to move synchronously to squeeze the object in the second storage chamber (612); Wherein, in the first cleaning member (6), air is stored in the first storage chamber (611), and lubricating oil is stored in the second storage chamber (612); and In the second cleaning member (7), lubricating oil is stored in the first storage chamber (611), and degreasing agent is stored in the second storage chamber (612).

4. The piston mechanism according to claim 3, wherein: A plurality of equal-height blocks (621) are provided on one side of the first push plate (62) facing the second push plate (63); A spring (65) is provided on a side of the second push plate (63) away from the first push plate (62), and the spring (65) is sleeved on the guide shaft (64); wherein During the process of the first push plate (62) squeezing the first storage chamber (611), the spring (65) presses against the second push plate (63).

5. The piston mechanism according to claim 4, wherein: The piston rod (3) is provided with flat teeth (32) along the axial direction; The flat teeth (32) mesh with the gear (43); A first inflation port (11) is provided at the bottom of the first piston cylinder (1); A second inflation port (21) is provided at the bottom of the second piston cylinder (2); The first inflation port (11) and the second inflation port (21) are respectively connected to independent air pumps.

6. A vent opening and closing device using the piston mechanism according to any one of claims 1 to 5, characterized in that: include: Door panel (5), used for opening and closing the vent; and A hinge mechanism (8) comprising: a third rotating shaft (81), a connecting rod assembly (82), and a second bevel gear (83); in One end of the connecting rod group (82) is connected to the third rotating shaft (81), and the other end is connected to the door panel (5); The second bevel gear (83) is arranged at the end of the third rotating shaft (81) and meshes with the first bevel gear (41); The control module is configured to control the pneumatic assembly to drive the piston rod (3) to move toward the first piston cylinder (1) to open the door panel (5), and at the same time the piston rod (3) squeezes the first cleaning member (6) to blow air to the rotating side of the first bevel gear (41) to clean and apply lubricating oil; and The control module is further configured to control the pneumatic assembly to drive the piston rod (3) to move toward the second piston cylinder (2) to close the door panel (5), while the piston rod (3) squeezes the second cleaning member (7) to sequentially apply lubricating oil and spray degreasing agent to the rotating side of the first bevel gear (41).

7. The vent opening and closing device according to claim 6, wherein: Also includes: A locking mechanism, the locking mechanism comprising: a locking cylinder (9), the end of the locking cylinder (9) being provided with a locking column (91); The transmission rod (45) is provided with a locking hole (451); The cylinder (9) drives the locking column to extend into the locking hole (451) to achieve locking.

8. A method for operating the vent opening and closing device according to claim 6, characterized in that: include: The control module controls the piston rod (3) to move toward the first piston cylinder (1) to open the door panel (5), and at the same time, the piston rod (3) squeezes the first cleaning member (6) to blow air to the rotating side of the first bevel gear (41) to clean and apply lubricating oil; The control module controls the piston rod (3) to move toward the second piston cylinder (2) to close the door panel (5), and at the same time the piston rod (3) squeezes the second cleaning member (7) to sequentially apply lubricating oil and spray degreasing agent to the rotating side of the first bevel gear (41).

Images