Micro opening and closing device and equipment applying same

Abstract

The invention relates to a micro-opening and closing device and equipment using the same. The micro-opening and closing device comprises a support, a rotating shaft and a driving device, the rotating assembly is rotationally installed on the support and connected with the power source, and the power source drives the rotating assembly to rotate; the switching assembly is movably connected with the rotating assembly and used for converting the rotating motion of the rotating assembly into linear motion; and the rotating assembly is movably connected with the switching assembly and is connected with the opening and closing rotating shaft at the same time, the linear motion of the switching assembly drives the rotating assembly to rotate within a set angle range, and then the opening and closing rotating shaft is driven to synchronously rotate to achieve the micro opening and closing action. According to the cover body opening and closing device, only the power source needs to be used for driving the rotating assembly, rotation motion can be converted into linear motion through cooperation of the rotating assembly, the switching assembly and the rotating assembly, then the linear motion is further converted into small-angle rotation within the set angle range, automatic opening and closing actions of the cover body are achieved, and meanwhile the opening and closing angle of the cover body can be accurately controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical opening and closing equipment, and in particular relates to a micro-opening and closing device and equipment using the device. Background Art

[0002] In daily work in EMU locomotive workshops, workshop staff often encounter situations where they need to perform micro-opening and closing operations on the operation and maintenance boxes of locomotive precision tools, the protective housings of locomotive component integrated circuits, or the protective housings of locomotive air-conditioning precision components.

[0003] In the above situation, if an ordinary opening and closing safety mechanism is used, it will lead to problems such as excessive instantaneous opening and closing angles and unstable conversion process. In addition, conventional mechanical devices cannot complete the necessary range of limit operation functions during operation, and are not easy to be accurately controlled and maintained. It is easy to cause internal precision components to be contaminated or damaged by external forces, resulting in certain economic losses.

[0004] In addition, the box cover on some equipment is an embedded structure, and its opening and closing action is inconvenient to operate. Moreover, through ordinary manual operation, the opening and closing process of the box cover is not smooth, which can easily cause damage to the external shell. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a micro-opening and closing device which can realize small-angle rotation within a set angle range and ensure smooth movement, and at the same time provide a device using the device.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A micro-opening and closing device, comprising:

[0008] Bracket;

[0009] The rotating assembly is rotatably mounted on the bracket and connected to a power source, and the power source drives the rotating assembly to rotate;

[0010] The adapter assembly is movably connected to the rotating assembly and is used to convert the rotating motion of the rotating assembly into a linear motion;

[0011] The rotating component is movably connected to the adapter component and is also connected to the opening and closing shaft. The linear motion of the adapter component drives the rotating component to rotate within a set angle range, and then drives the opening and closing shaft to rotate synchronously to achieve a micro-opening and closing action.

[0012] Furthermore, the rotating assembly consists of a rotating rod and a first rotating arm, one end of the rotating rod is connected to a power source, the first rotating arm is vertically mounted on the rotating rod, the adapter assembly includes a longitudinal slide bar, one end of the longitudinal slide bar is movably connected to the first rotating arm, the rotating assembly includes a transverse slide bar and a rotating rod, the transverse slide bar is movably connected to the longitudinal slide bar, the transverse slide bar is connected to a second rotating arm, the second rotating arm is fixedly connected to the rotating rod, and the rotating rod is fixedly connected to the opening and closing rotating shaft.

[0013] Furthermore, a first rotating cylinder is provided at the end of the first rotating arm, and a second rotating cylinder is provided at the other end of the longitudinal sliding rod, the axes of the first rotating cylinder and the second rotating cylinder are perpendicular to each other, one end of the longitudinal sliding rod can movably pass through the first rotating cylinder and rotate relative to the first rotating cylinder and slide in the longitudinal direction, and the transverse sliding rod can movably pass through the second rotating cylinder and rotate relative to the second rotating cylinder and slide in the transverse direction.

[0014] Furthermore, the transverse sliding rod and the rotating rod are parallel to each other, and the diameter of the rotating rod is greater than the diameter of the transverse sliding rod.

[0015] Furthermore, the end of the rotating rod is fixedly connected to the opening and closing rotating shaft by welding in the direction of the central axis;

[0016] Alternatively, the end of the rotating rod is connected to the opening and closing rotating shaft through a transmission mechanism.

[0017] Furthermore, the second rotating arm is a flat asymmetric ellipsoid, the small end of which has a first mounting hole and is fixedly connected to the transverse sliding rod, and the large end of which has a penetrating second mounting hole and is fixedly connected to the rotating rod.

[0018] Furthermore, the bracket is U-shaped, consisting of two side arms and a middle connecting arm. The rotating component is rotatably connected to the connecting arm in a direction perpendicular to the connecting arm. There are supporting parts at the ends of the two side arms, and the rotating component can be rotatably supported on the supporting parts.

[0019] Furthermore, the power source is a driving device, and the driving device is connected to the rotating component through a transmission mechanism.

[0020] Furthermore, the transmission mechanism adopts a belt transmission mechanism.

[0021] The second technical solution of the present invention is:

[0022] A device comprises a cover body, wherein an opening and closing rotating shaft on the cover body is connected to the above-mentioned micro-opening and closing device.

[0023] In summary, the micro-opening and closing device and the equipment using the same provided by the present invention have the following advantages compared with the prior art:

[0024] 1. The device only needs to use a power source to drive the rotating component, that is, the rotating motion can be converted into a linear motion within a set straight-line distance range through the cooperation of the rotating component, the adapter component and the rotating component, and then further converted into a small-angle rotation within a set angle range, so as to realize the automatic opening and closing action of the cover body, and the action is smooth, safe and reliable. At the same time, the opening and closing angle of the cover body can be accurately controlled to ensure that the internal precision parts are not contaminated or damaged by external forces.

[0025] 2. Through the linkage action between various components, the device can accurately control the maximum angle range of the opening and closing shaft, that is, the maximum opening and closing angle of the cover body. At the same time, it can also accurately control any opening and closing angle of the cover body within the set angle range by controlling the rotation angle of the rotating component to meet the opening and closing requirements of the cover body in different situations.

[0026] 3. The overall structure of the device is simple and compact, and the volume is small, which is conducive to reducing the occupied space.

[0027] 4. The device realizes automatic opening or closing of the cover through a driving device. The device can be used to safely and effectively complete the opening and closing of the embedded cover.

[0028] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0030] In the attached picture:

[0031] Figure 1 It is a schematic diagram of the structure of the micro-opening and closing device of the present invention;

[0032] Figure 2 It is an exploded view of the structure of the micro-opening and closing device of the present invention.

[0033] In the figure:

[0034] Bracket 1, side arm 11, connecting arm 12, through hole 13, supporting portion 14, circular hole 141, rotating component 2, rotating rod 21, first rotating arm 22, first rotating cylinder 23, adapter component 3, longitudinal sliding rod 31, second rotating cylinder 32, rotating component 4, transverse sliding rod 41, rotating rod 42, second rotating arm 43.

[0035] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0037] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 and Figure 2 As shown, the present invention provides a micro-opening and closing device, including a bracket 1, a rotating component 2, a switching component 3 and a rotating component 4.

[0040] Among them, the rotating assembly 2 is rotatably mounted on the bracket 1 and connected to a power source (not shown in the figure), and the power source drives the rotating assembly 2 to rotate. The adapter assembly 3 is movably connected to the rotating assembly 2, and is used to convert the rotational motion of the rotating assembly 2 into the linear motion of the adapter assembly 3. The rotating assembly 3 is movably connected to the adapter assembly 2, and is also connected to the opening and closing shaft (not shown in the figure). The opening and closing shaft is connected between the cover body and the box body, and the cover body rotates around the opening and closing shaft to achieve opening and closing. The linear motion of the adapter assembly 2 drives the rotating assembly 3 to rotate within the set angle range, and then drives the opening and closing shaft to rotate synchronously. The rotation of the rotating assembly 3 realizes the small-angle opening and closing action of the cover body within the set angle range.

[0041] In this way, when the workshop staff encounters the need to perform micro-opening and closing operations on the operation and maintenance box of locomotive precision tools, the protective housing of locomotive parts integrated circuits, or the protective housing of locomotive air-conditioning precision parts, they only need to use the power source to drive the rotating component 2, that is, through the cooperation of the rotating component 2, the adapter component 3 and the rotating component 4, the rotational motion can be converted into a linear motion within a set straight-line distance range, and then further converted into a rotation within a set angle range, thereby realizing automatic opening and closing of the cover body, and the action is smooth, safe and reliable. At the same time, the opening and closing angle of the cover body can be accurately controlled to ensure that the internal precision components are not contaminated or damaged by external forces.

[0042] In this embodiment, preferably, the rotating assembly 2 is composed of a rotating rod 21 and a first rotating arm 22, one end of the rotating rod 21 is connected to the power source, the first rotating arm 22 is vertically installed on the rotating rod 21, the radius of the first rotating arm 22 is set according to the required opening and closing angle, the first rotating arm 22 rotates around the longitudinal center axis of the rotating rod 21, and the first rotating arm 22 and the rotating rod 21 are connected by micro-beam plasma welding. The adapter assembly 3 includes a longitudinal slide bar 31, one end of the longitudinal slide bar 31 is movably connected to the first rotating arm 22, and the longitudinal slide bar 31 can simultaneously rotate and slide forward and backward in the longitudinal direction relative to the first rotating arm 22 during the process of the first rotating arm 22 rotating according to the set radius. The rotating assembly 4 includes a transverse slide bar 41 and a rotating rod 42, and the transverse slide bar 41 is movably connected to the longitudinal slide bar 31 in the adapter assembly 3, and the movable connection includes that the longitudinal slide bar 31 can rotate and slide left and right in the transverse direction relative to the transverse slide bar 41. The transverse sliding bar 41 is connected to a second rotating arm 43, the second rotating arm 43 is fixedly connected to the rotating rod 42, and the rotating rod 42 is connected to the opening and closing rotating shaft. The transverse sliding bar 41, the rotating rod 42 and the second rotating arm 43 are all connected by micro-beam plasma welding.

[0043] The rotating rod 21 rotates to a set angle driven by a power source, and the first rotating arm 22 also rotates synchronously to a set angle around the longitudinal center axis of the rotating rod 21. While the longitudinal slide bar 31 rotates with the first rotating arm 22, it also moves forward or backward a set distance in the longitudinal direction, thereby converting the rotational motion into linear motion. When the longitudinal slide bar 31 moves forward and backward, it drives the rotating rod 42 to rotate left or right within a set angle range through the transverse slide bar 41 and the second rotating arm 43, and the rotating rod 42 then drives the opening and closing shaft to rotate synchronously, thereby realizing a micro-opening and closing action of the cover body within a set angle range.

[0044] In this way, through a simple motion transmission structure, the rotational motion input by the power source can be converted into the leftward or rightward rotation of the rotating rod 42 within a set angle. The relationship between the rotation angle of the rotating rod 41 and the rotation angle of the rotating rod 42 can be accurately controlled by only accurately setting the rotation radius of the first rotating arm 22 and the length of the longitudinal sliding rod 31, thereby limiting the maximum angle range of the left and right rotation of the rotating rod 42, that is, the maximum opening and closing angle of the cover body. At the same time, the opening and closing angle of the cover body can be accurately controlled by controlling the rotation angle of the rotating rod 41.

[0045] In this embodiment, it is further preferred that second rotating arms 43 are respectively connected to both ends of the transverse sliding bar 41, and the two second rotating arms 43 are respectively fixedly connected to the rotating rod 42. The transverse sliding bar 41 drives the rotating rod 42 to rotate by the two second rotating arms 43, which is conducive to improving the stability of the rotation of the rotating rod 42 and also helps to accurately control the rotation angle of the rotating rod 42.

[0046] In this embodiment, in order to simplify the structure and reduce the volume and cost of the device, it is further preferred that the transverse slide bar 41 and the rotating rod 42 are parallel to each other, and the transverse slide bar 41 adopts a thin slide bar with a smaller diameter, and the rotating rod 42 adopts a thick slide bar with a larger diameter. In addition, the transverse slide bar 41 and the rotating rod 42 are both milled and integrated, which is conducive to ensuring strength, stable power transmission, and accurate control of the opening and closing angle.

[0047] In order to match the transverse slide bar 41 and the rotating rod 42, in this embodiment, the second rotating arm 43 preferably adopts a flat asymmetric ellipsoid structure, with a first mounting hole 44 at the small end and fixedly connected to the transverse slide bar 41, the first mounting hole 44 is preferably a blind hole, and a second mounting hole 45 is penetrated at the large end, and the rotating rod 42 passes through the two second mounting holes 45 and is fixedly connected to the second rotating arm 43. The second rotating arm 43 is connected to the transverse slide bar 41 and the rotating rod 42 by micro-beam plasma welding.

[0048] In this embodiment, it is further preferred that a first rotating cylinder 23 is provided at the end of the first rotating arm 22, one end of the longitudinal slide bar 31 is movably installed in the first rotating cylinder 23, and the other end of the longitudinal slide bar 31 is provided with a second rotating cylinder 32, the axes of the first rotating cylinder 23 and the second rotating cylinder 32 are perpendicular to each other, and the longitudinal slide bar 31 can rotate and slide forward and backward in the first rotating cylinder 23. The second rotating cylinder 32 is movably connected to the transverse slide bar 41, and the second rotating cylinder 32 and the transverse slide bar 41 can rotate relative to each other and slide left and right.

[0049] In this way, the structure of the rotating cylinder is used to realize the connection between the first rotating arm 22 and the longitudinal slide bar 31 and the connection between the longitudinal slide bar 31 and the transverse slide bar 41, which can ensure smooth sliding and rotating movements and effectively transmit power, thereby facilitating precise control of the opening and closing angles.

[0050] In this embodiment, preferably, the end of the rotating rod 42 is welded and fixedly connected to the opening and closing shaft in the direction of the central axis. This is beneficial to ensure that the rotating action of the rotating rod 42 is transmitted to the opening and closing shaft, thereby accurately controlling the rotation angle of the opening and closing shaft.

[0051] Regarding the connection mode between the rotating rod 42 and the opening and closing shaft, another implementation mode is provided in this embodiment, where the end of the rotating rod 42 is connected to the opening and closing shaft through a transmission mechanism, such as a belt transmission mechanism. This facilitates the installation of the device and is less restricted by the installation position.

[0052] In this embodiment, preferably, the bracket 1 adopts a U-shaped structure, and more preferably adopts a U-shaped flat structure, which is composed of two side arms 11 and a connecting arm 12 in the middle. The rotating rod 21 in the rotating assembly 2 is connected to the connecting arm 12 in a direction perpendicular to the connecting arm 12. A through hole 13 is opened in the center of the connecting arm 12, and the rotating rod 21 is installed through the through hole. Support parts 14 are respectively provided at the ends of the two side arms 11, and the two ends of the rotating rod 42 can be rotatably supported on the support parts 14. More preferably, the support part 14 is a circular hole 141 set at the end of the side arm 11, and the two ends of the rotating rod 42 pass through the circular hole 141 to be rotatably connected. The structure of the bracket 1 is not only simple in overall structure and can provide sufficient supporting strength, but also conducive to making the device compact, reducing the size of the device, and reducing the occupied space. During installation, the bracket 1 can be directly fixed to the cover body, or fixed to the cover body through a structure such as a connector.

[0053] In this embodiment, the power source is preferably a driving device, and the driving device is further preferably a motor (not shown in the figure), which is fixedly mounted on the cover body and connected to the rotating rod 21 through a transmission mechanism. The transmission mechanism is preferably a belt transmission mechanism with a simple structure and low cost, and a sawtooth that matches the belt is provided at the end of the rotating rod 21. Of course, the transmission mechanism can also adopt other transmission methods such as gear transmission. However, in the case where the cover body is light in weight, the power source can also be manual, that is, the cover body is opened or closed by manually rotating the rotating rod 21.

[0054] In this embodiment, the entire device is preferably made of aluminum alloy material, which can make the overall weight of the device lighter, ensure the structural strength of the device, and have good corrosion resistance. The device can be installed on equipment working in any environment.

[0055] In this embodiment, it is further preferred that the surfaces of all components in the device are treated with an anti-corrosion and wear-resistant process, and the surfaces of the longitudinal slide bar 31 and the transverse slide bar 41 are further treated with a lubrication process. This is conducive to increasing the service life of the device, and can also ensure that the longitudinal slide bar 31 and the transverse slide bar 41 slide and rotate smoothly in the first drum 22 and the second drum 23.

[0056] The working process of the device is as follows:

[0057] 1. Start the motor to drive the rotating rod 21 to rotate clockwise or counterclockwise to a set angle. The rotating rod 21 can also be driven to rotate in one direction all the time as required.

[0058] 2. When the rotating rod 21 rotates, the first rotating arm 22 rotates synchronously around the longitudinal center axis of the rotating rod 21 .

[0059] 3. The longitudinal slide bar 31 rotates synchronously with the first rotating arm 22 around the longitudinal center axis of the rotating rod 21, and realizes forward or backward linear motion while rotating. The longitudinal slide bar 31 moves forward or backward by a set distance.

[0060] 4. When the longitudinal slide bar 31 moves forward or backward in a straight line, it drives the transverse slide bar 41 to rotate in the front-to-back direction. The distance of the straight line movement determines the rotation angle of the transverse slide bar 41.

[0061] 5. When the longitudinal slide bar 31 pushes the transverse slide bar 41 to rotate, the second rotating arm 43 drives the rotating rod 42 to rotate synchronously, thereby driving the opening and closing rotating shaft to rotate synchronously at a set angle, so that the cover body is opened at a set angle or closed.

[0062] The micro-opening and closing device provided by the present invention has the following advantages:

[0063] 1. The device only needs to use a power source to drive the rotating component, that is, the rotating motion can be converted into a linear motion within a set straight-line distance range through the cooperation of the rotating component, the adapter component and the rotating component, and then further converted into a small-angle rotation within a set angle range, so as to realize the automatic opening and closing action of the cover body, and the action is smooth, safe and reliable. At the same time, the opening and closing angle of the cover body can be accurately controlled to ensure that the internal precision parts are not contaminated or damaged by external forces.

[0064] 2. Through the linkage action between various components, the device can accurately control the maximum angle range of the opening and closing shaft, that is, the maximum opening and closing angle of the cover body. At the same time, it can also accurately control any opening and closing angle of the cover body within the set angle range by controlling the rotation angle of the rotating component to meet the opening and closing requirements of the cover body in different situations.

[0065] 3. The overall structure of the device is simple and compact, and the volume is small, which is conducive to reducing the occupied space.

[0066] 4. The device realizes automatic opening or closing of the cover through a driving device. The device can be used to safely and effectively complete the opening and closing of the embedded cover.

[0067] 4. The device is made of aluminum alloy, which makes the overall weight lighter and ensures the structural strength of the device. It also has good corrosion resistance. The device can be installed on equipment working in any environment.

[0068] The present invention also provides a device, including an operation and maintenance box for locomotive precision tools, a locomotive component integrated circuit protection shell, or a locomotive air-conditioning precision component protection shell, etc. The device includes a cover body, which is connected to the box body through an opening and closing shaft, and the opening and closing shaft is connected to the above-mentioned micro-opening and closing device to realize the micro-opening and closing action of the cover body within a set angle range.

Claims

1. A micro-opening and closing device, characterized in that: include: Bracket; The rotating assembly is rotatably mounted on the bracket and connected to a power source, and the power source drives the rotating assembly to rotate; The adapter assembly is movably connected to the rotating assembly and is used to convert the rotating motion of the rotating assembly into a linear motion; The rotating component is movably connected to the adapter component and is also connected to the opening and closing shaft. The linear motion of the adapter component drives the rotating component to rotate within a set angle range, and then drives the opening and closing shaft to rotate synchronously to achieve a micro-opening and closing action.

2. The micro-opening and closing device according to claim 1, characterized in that: The rotating assembly consists of a rotating rod and a first rotating arm, one end of the rotating rod is connected to a power source, the first rotating arm is vertically mounted on the rotating rod, the adapter assembly includes a longitudinal sliding rod, one end of the longitudinal sliding rod is movably connected to the first rotating arm, the rotating assembly includes a transverse sliding rod and a rotating rod, the transverse sliding rod is movably connected to the longitudinal sliding rod, the transverse sliding rod is connected to a second rotating arm, the second rotating arm is fixedly connected to the rotating rod, and the rotating rod is fixedly connected to the opening and closing rotating shaft.

3. The micro-opening and closing device according to claim 2, characterized in that: A first rotating cylinder is provided at the end of the first rotating arm, and a second rotating cylinder is provided at the other end of the longitudinal sliding rod. The axes of the first rotating cylinder and the second rotating cylinder are perpendicular to each other. One end of the longitudinal sliding rod can movably pass through the first rotating cylinder and rotate relative to the first rotating cylinder and slide in the longitudinal direction. The transverse sliding rod can movably pass through the second rotating cylinder and rotate relative to the second rotating cylinder and slide in the transverse direction.

4. The micro-opening and closing device according to claim 2, characterized in that: The transverse sliding rod and the rotating rod are parallel to each other, and the diameter of the rotating rod is greater than the diameter of the transverse sliding rod.

5. The micro-opening and closing device according to claim 2, characterized in that: The end of the rotating rod is welded and fixedly connected to the opening and closing rotating shaft in the direction of the central axis; Alternatively, the end of the rotating rod is connected to the opening and closing rotating shaft through a transmission mechanism.

6. The micro-opening and closing device according to claim 2, characterized in that: The second rotating arm is a flat asymmetric ellipsoid, a small end of which has a first mounting hole and is fixedly connected to the transverse sliding rod, and a large end of which has a penetrating second mounting hole and is fixedly connected to the rotating rod.

7. The micro-opening and closing device according to claim 1, characterized in that: The bracket is U-shaped, consisting of two side arms and a middle connecting arm. The rotating component is connected to the connecting arm in a direction perpendicular to the connecting arm. There are supporting parts at the ends of the two side arms, and the rotating component can be rotatably supported on the supporting parts.

8. The micro-opening and closing device according to any one of claims 1 to 7, characterized in that: The power source is a driving device, and the driving device is connected to the rotating component through a transmission mechanism.

9. The micro-opening and closing device according to claim 8, characterized in that: The transmission mechanism adopts a belt transmission mechanism.

10. A device comprising a cover, characterized in that: The opening and closing shaft on the cover body is connected to the micro-opening and closing device described in any one of claims 1-9.

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