Double-opening pedal structure

Abstract

The utility model provides a double-opening pedal structure, which relates to an opening mechanism of a turnover door and comprises a first pedal and a second pedal which are oppositely mounted. The middle of the rotating rod is rotatably mounted on the rotating shaft; the driving device is used for driving the rotating rod to rotate around the rotating shaft; the lower end of the first connecting rod assembly is hinged to one end of the rotating rod, and the upper end is hinged to the bottom surface of the first pedal; the lower end of the second connecting rod assembly is hinged to the other end of the rotating rod, and the upper end is hinged to the bottom surface of the second pedal; when the driving device pushes the rotating rod to rotate, the rotating rod drives the first pedal and the second pedal to turn upwards at the same time through the first connecting rod assembly and the second connecting rod assembly to be in the opening state, the cost of the driving device can be reduced, and the driving space can be saved; the other end of the first pedal and the other end of the second pedal are horizontally opposite and downwards supported on a check block, and people can step on the check block.

Description

Technical Field

[0001] The utility model relates to an opening mechanism for a flip door, in particular to a double-opening pedal structure driven by a connecting rod. Background Art

[0002] With the development of metal 3D printing technology, the production efficiency of metal 3D printing equipment is increasingly required. At present, when the metal 3D printing equipment completes printing of products, the machine stops automatically. After evacuating nitrogen and cooling naturally, the printed substrate slowly rises to the initial position. The operator manually cleans the powder of the product and completes the product unloading operation. In order to improve the efficiency of metal 3D printing equipment in producing products, it is necessary to consider setting up an independent station for the unloading and powder cleaning operation in the metal 3D printing process. If the 3D printing equipment has a powder cleaning and unloading station, and the pedal can be installed at the station, when the station is not in use, the pedal is closed and the operator can step on it to perform other work. On the other hand, when the powder cleaning and unloading station is needed, the pedal can be rotated upward along the fixed axis to open, so that the material can be moved from the open pedal to this station. At the same time, after the pedal is rotated and opened, the station and the surrounding area are separated, which can prevent damage to the station or injury to personnel due to accidental stepping.

[0003] For example, Chinese invention patent application CN 219241682 U discloses a door drive device, which drives two opposing revolving door bodies to rotate through the linear motion of a driving component. Although the two door bodies can be controlled to open and close at the same time, both door bodies require separate driving components to control them. In order to ensure their reliability, multiple power sources need to be set up, which occupies a large driving space. Moreover, when the structure is applied to the above-mentioned metal 3D printing powder cleaning and unloading stations, there is no safety protection device for the pedal to bear the weight when it is closed, and there will be safety problems if stepped on. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a double-open pedal structure driven by a connecting rod, which can save driving space.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A double-open pedal structure, comprising a first pedal and a second pedal installed opposite to each other, wherein one end of the first pedal is provided with a first pivot, and one end of the second pedal is provided with a second pivot; in a closed state, the other ends of the first pedal and the second pedal are horizontally opposite to each other and supported downward on a stopper, and further comprising:

[0007] A rotating rod, the middle of which is rotatably mounted on the rotating shaft;

[0008] a driving device, used for driving the rotating rod to rotate around the rotating shaft;

[0009] A first connecting rod assembly, the lower end of which is hinged to one end of the rotating rod, and the upper end of which is hinged to the bottom surface of the first pedal;

[0010] A second connecting rod assembly, the lower end of which is hinged to the other end of the rotating rod, and the upper end of which is hinged to the bottom surface of the second pedal;

[0011] When the driving device pushes the rotating rod to rotate, the rotating rod drives the first pedal and the second pedal to flip upward at the same time through the first connecting rod assembly and the second connecting rod assembly to become an open state.

[0012] Furthermore, it also includes a bracket, and the first pivot, the second pivot, the stopper, the driving device and the rotating shaft are all installed on the bracket.

[0013] Furthermore, a first connecting block is provided on the bottom surface of the first pedal, and the upper end of the first connecting rod assembly is hinged to the first connecting block; a second connecting block is provided on the bottom surface of the second pedal, and the upper end of the second connecting rod assembly is hinged to the second connecting block.

[0014] Furthermore, the first connecting rod assembly includes a first lower connecting rod, a first swing plate and a first upper connecting rod, the two ends of the first lower connecting rod are respectively hinged to the rotating rod and the first swing plate, the first swing plate swings around the first pin shaft, and the two ends of the first upper connecting rod are respectively hinged to the first swing plate and the bottom surface of the first pedal.

[0015] Furthermore, the second connecting rod assembly includes a second lower connecting rod, a second swing plate and a second upper connecting rod, the two ends of the second lower connecting rod are respectively hinged to the rotating rod and the second swing plate, the second swing plate swings around the second pin shaft, and the two ends of the second upper connecting rod are respectively hinged to the second swing plate and the bottom surface of the second pedal.

[0016] Furthermore, the driving device is a pneumatic cylinder or a hydraulic cylinder.

[0017] Furthermore, the end surfaces of the first pedal and the second pedal facing each other when they are closed are inclined surfaces.

[0018] Furthermore, in the closed state, the rotating rod is in a substantially vertical state.

[0019] The utility model has the following beneficial effects: the double-open pedal structure of the utility model includes a first connecting rod assembly and a second connecting rod assembly which are respectively hinged to the bottom surface of the first pedal and the bottom surface of the second pedal. The rotating rod is driven to rotate by only one driving device. The rotating rod drives the first pedal and the second pedal to open and close at the same time through the first connecting rod assembly and the second connecting rod assembly, which can reduce the cost of the driving device and save the installation space of the driving device. In the closed state, the other ends of the first pedal and the second pedal are horizontally opposite to each other and supported downward on a block for people to step on. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the double-opening pedal structure of the utility model when it is closed.

[0021] Figure 2 It is a three-dimensional diagram of the double-open pedal structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the double-opening pedal structure of the utility model when it is opened.

[0023] Description of Reference Numerals

[0024] 1 First pedal

[0025] 101 First Pivot

[0026] 102 First connection block

[0027] 2 Second pedal

[0028] 201 Second Pivot

[0029] 202 Second connection block

[0030] 3 Stopper

[0031] 4 Rotating rod

[0032] 401 Rotating shaft

[0033] 5. Drive device

[0034] 51 Drive rod

[0035] 6 First connecting rod assembly

[0036] 61 First lower link

[0037] 62 First swing plate

[0038] 621 First Pin

[0039] 63 First upper link

[0040] 7 Second connecting rod assembly

[0041] 71 Second lower link

[0042] 72 Second swing plate

[0043] 721 Second pin

[0044] 73 Second upper link

[0045] 8 Bracket

[0046] 9 bevel DETAILED DESCRIPTION

[0047] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0048] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0051] like Figure 1 and Figure 2As shown, the utility model provides a double-open pedal structure, including a bracket 8 and a first pedal 1 and a second pedal 2 installed relatively to each other, a first pivot 101 is provided at one end of the first pedal 1, and a second pivot 201 is provided at one end of the second pedal 2. The first pedal 1 can be flipped up and down around the first pivot 101, and the second pedal 2 can be flipped up and down around the second pivot 201. The first pivot 101 and the second pivot 201 are both installed on the bracket 8. A first connecting block 102 is provided on the bottom surface of the first pedal 1, and a second connecting block 202 is provided on the bottom surface of the second pedal 2. The first connecting block 102 and the second connecting block 202 can be connected to the bottom surface of the first pedal 1 and the bottom surface of the second pedal 2 by bolt connection or welding. When the double-open pedal structure is in a closed state, the other ends of the first pedal 1 and the second pedal 2 are horizontally opposite to each other and downwardly supported on a stopper 3. The stopper 3 is installed on the bracket 8 to ensure that the first pedal 1 and the second pedal 2 can bear weight when closed, and people can step on them.

[0052] like Figure 1 As shown, the double-open pedal structure includes a rotating rod 4, a driving device 5, a first connecting rod assembly 6 and a second connecting rod assembly 7, wherein the middle of the rotating rod 4 is rotatably mounted on the rotating shaft 401; the driving device 5 is a cylinder or a hydraulic cylinder, which is used to drive the rotating rod 4 to rotate around the rotating shaft 401, and the rotating shaft 401 and the driving device 5 are both mounted on the bracket 8; the lower end of the first connecting rod assembly 6 is hinged to one end of the rotating rod 4, and the upper end of the first connecting rod assembly 6 is hinged to the first connecting block 102 installed on the bottom surface of the first pedal 1; the lower end of the second connecting rod assembly 7 is hinged to the other end of the rotating rod 4, and the upper end of the second connecting rod assembly 7 is hinged to the second connecting block 202 installed on the bottom surface of the second pedal 2. When the driving device 5 pushes the rotating rod 4 to rotate counterclockwise, the rotating rod 4 can drive the first pedal 1 and the second pedal 2 to flip upward at the same time through the first connecting rod assembly 6 and the second connecting rod assembly 7 to become an open state (such as Figure 3 As shown in FIG. 1 , when the driving device 5 drives the rotating rod 4 to rotate clockwise, the rotating rod 4 drives the first pedal 1 and the second pedal 2 to flip downward at the same time through the first connecting rod assembly 6 and the second connecting rod assembly 7, and the pedals are turned into a closed state. This structure can realize the simultaneous opening and closing of the double-opening pedals with less power source, has a simple structure, can reduce costs, and save space.

[0053] Furthermore, if Figure 1As shown, the first connecting rod assembly 6 includes a first lower connecting rod 61, a first swing plate 62 and a first upper connecting rod 63. The two ends of the first lower connecting rod 61 are respectively hinged with the rotating rod 4 and the first swing plate 62. The first swing plate 62 swings around the first pin 621, and the first pin 621 is installed on the bracket 8. The two ends of the first upper connecting rod 63 are respectively hinged with the first swing plate 62 and the first connecting block 102 on the bottom surface of the first pedal 1, which is used to transmit the driving force to the first pedal 1 so that the first pedal 1 can be flipped open. The second connecting rod assembly 7 includes a second lower connecting rod 71, a second swinging plate 72 and a second upper connecting rod 73. The two ends of the second lower connecting rod 71 are respectively hinged to the rotating rod 4 and the second swinging plate 72. The second swinging plate 72 swings around the second pin shaft 721, and the second pin shaft 721 is installed on the bracket 8. The two ends of the second upper connecting rod 73 are respectively hinged to the second swinging plate 72 and the second connecting block 202 on the bottom surface of the second pedal 2, so as to transmit the driving force to the second pedal 2 so that the second pedal 2 can be flipped open and closed.

[0054] The following is an application embodiment of a double-open pedal structure of the utility model, in which the double-open pedal structure is used in a metal 3D printer device. The metal 3D printer device has a powder cleaning and unloading station, and a pedal for personnel to step on can be installed in the station space. The workpiece printed at the printing station will be transported to the powder cleaning and unloading station, and then the double-open pedal structure is opened for powder cleaning and unloading; after the powder cleaning and unloading is completed, the double-open pedal structure is closed, and the powder cleaning and unloading station can be used for personnel to stand or walk, and no longer occupies ground space. When the structural dimensions and transmission path of the connecting rod mechanism of the double-open pedal structure are designed, the first pivot 101, the second pivot 201, the block 3, the first pin 621, the second pin 721, the drive device 5 and the rotating shaft 401 are installed at the preset position of the bracket 8, and a drive rod 51 is provided at the front end of the drive device 5. The specific action process of opening the first pedal 1 and the second pedal 2 at the same time is as follows:

[0055] When the double-open pedal structure is closed, the rotating rod 4 is in a roughly vertical state, the first lower connecting rod 61 is hinged at the upper end of the rotating rod 4, and the driving rod 51 and the second lower connecting rod 71 are hinged at the lower end of the rotating rod 4, ensuring that the first pedal 1 and the second pedal 2 can be flipped upward and opened at the same time when the driving rod 51 is extended. Bearings or bushings are used at the hinges of each connecting rod to ensure lubrication and smooth rotation during the movement of the connecting rod.

[0056] like Figures 1 to 3As shown, the driving device 5 is started, the driving rod 51 is extended, and the rotating rod 4 hinged at the outer end of the driving rod 51 rotates counterclockwise around the rotating shaft 401. On the one hand, the rotation of the rotating rod 4 drives the first swing plate 62 to rotate clockwise around the first pin 621 through the first lower connecting rod 61. Further, the first swing plate 62 pushes the first pedal 1 to rotate counterclockwise around the first pivot 101 through the first upper connecting rod 63, so that it is flipped vertically upward and opened; on the other hand, the rotation of the rotating rod 4 drives the second swing plate 72 to rotate counterclockwise around the second pin 721 through the second lower connecting rod 71. Further, the second swing plate 72 pushes the second pedal 2 to rotate clockwise around the second pivot 201 through the second upper connecting rod 73, so that it is flipped vertically upward and opened. Under the pre-designed size, when the driving rod 51 of the driving device 5 is extended, the first pedal 1 and the second pedal 2 can be opened at the same time, and the printed workpiece can be cleaned and unloaded. The flipped-open first pedal 1 and the second pedal 2 are in a vertical state, which can block people from passing by on both sides and prevent them from stepping on the pedal by mistake.

[0057] Similarly, when the powder cleaning and unloading is completed and the double-open pedal structure needs to be closed, the driving rod 51 retracts, and the first pedal 1 and the second pedal 2 can be closed at the same time. When closed, the opposite end faces of the first pedal 1 and the second pedal 2 are inclined surfaces 9, which can make the upper surface of the two pedals smoother after closing, and prevent gaps when the pedals are closed or interference during the closing process. After the first pedal 1 and the second pedal 2 are closed, the lower surfaces of the opposite ends of the first pedal 1 and the second pedal 2 contact with the upper surface of the stopper 3 installed on the bracket 8, which can meet the force applied by the support personnel walking on the pedals, facilitate personnel walking, and provide a larger usage space for operating the metal 3D printing equipment to perform other work.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A double-open pedal structure, comprising a first pedal (1) and a second pedal (2) which are relatively mounted, wherein one end of the first pedal (1) is provided with a first pivot (101), and one end of the second pedal (2) is provided with a second pivot (201); in a closed state, the other ends of the first pedal (1) and the second pedal (2) are horizontally opposed to each other and supported downwardly on a stopper (3), characterized in that: Also includes: A rotating rod (4) rotatably mounted in the middle on the rotating shaft (401); a driving device (5) for driving the rotating rod (4) to rotate around the rotating shaft (401); A first connecting rod assembly (6), the lower end of which is hinged to one end of the rotating rod (4), and the upper end of which is hinged to the bottom surface of the first pedal (1); A second connecting rod assembly (7), the lower end of which is hinged to the other end of the rotating rod (4), and the upper end of which is hinged to the bottom surface of the second pedal (2); When the driving device (5) pushes the rotating rod (4) to rotate, the rotating rod (4) drives the first pedal (1) and the second pedal (2) to flip upwards simultaneously through the first connecting rod assembly (6) and the second connecting rod assembly (7) to become an open state.

2. The double-open pedal structure according to claim 1, characterized in that: It also comprises a bracket (8), wherein the first pivot (101), the second pivot (201), the stopper (3), the driving device (5) and the rotating shaft (401) are all mounted on the bracket (8).

3. The double-open pedal structure according to claim 1, characterized in that: A first connecting block (102) is provided on the bottom surface of the first pedal (1), and the upper end of the first connecting rod assembly (6) is hinged to the first connecting block (102); a second connecting block (202) is provided on the bottom surface of the second pedal (2), and the upper end of the second connecting rod assembly (7) is hinged to the second connecting block (202).

4. The double-open pedal structure according to claim 1, characterized in that: The first connecting rod assembly (6) comprises a first lower connecting rod (61), a first swing plate (62) and a first upper connecting rod (63); two ends of the first lower connecting rod (61) are respectively hinged to the rotating rod (4) and the first swing plate (62); the first swing plate (62) swings around a first pin (621); and two ends of the first upper connecting rod (63) are respectively hinged to the first swing plate (62) and the bottom surface of the first pedal (1).

5. The double-open pedal structure according to claim 3, characterized in that: The second connecting rod assembly (7) comprises a second lower connecting rod (71), a second swing plate (72) and a second upper connecting rod (73); the two ends of the second lower connecting rod (71) are respectively hinged to the rotating rod (4) and the second swing plate (72); the second swing plate (72) swings around a second pin (721); and the two ends of the second upper connecting rod (73) are respectively hinged to the second swing plate (72) and the bottom surface of the second pedal (2).

6. The double-open pedal structure according to claim 1, characterized in that: The driving device (5) is a pneumatic cylinder or a hydraulic cylinder.

7. The double-open pedal structure according to claim 1, characterized in that: When the first pedal (1) and the second pedal (2) are closed, the end surfaces facing each other are inclined surfaces (9).

8. The double-open pedal structure according to claim 1, characterized in that: In the closed state, the rotating rod (4) is in a substantially vertical state.

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