Automatic door opening and closing mechanism for biological shaking bed

Abstract

The present invention discloses an automatic door opening and closing mechanism for a biological rocking bed, which is characterized by comprising a stepper motor, a synchronous belt, a transmission assembly, a sealed door and a gravity balance assembly. A synchronous belt is installed on the surface of one side of the stepper motor, a transmission assembly is installed on the other end of the synchronous belt, a sealed door is installed on the front end face of the transmission assembly, and a gravity balance assembly is arranged at the rear end of the transmission assembly. The present invention has at least the following beneficial effects: a signal is received by an infrared sensor to control the stop of the stepper motor. A movable hook is connected to the other end of the infrared reflection block, and the movable hook and the gravity spring are used to adjust the tightness of the spring through a threaded distance adjustment rod. At the same time, since most of the gravity of the door is balanced by the spring, the force without electricity is very small during the opening and closing process of the door. The power is transmitted by the synchronous belt, which can play a buffering role and make the door run smoothly during the opening and closing process.

Description

Technical Field

[0001] The invention relates to the field of molecular biology, in particular to an automatic door opening and closing mechanism for a biological shaking table. Background Art

[0002] Molecular biology is a science that studies the structure and function of biological macromolecules at the molecular level to clarify the essence of life phenomena. Since the 1950s, molecular biology has been the frontier and growth point of biology, and its main research areas include protein systems, protein-nucleic acid systems (centered on molecular genetics) and protein-lipid systems (i.e. biological membranes).

[0003] When conducting molecular biology experiments, high-speed biological shakers are used as a common laboratory equipment. In the existing field of biological shakers, the doors of the shakers are opened and closed manually. For heavier doors, the manual opening and closing method is not very convenient. And with the gradual advancement of unmanned laboratories, in the field of biological culture, the coordinated operation of biological shakers and robotic arms has become more and more common. This requires that the biological shaker has the function of opening and closing the door, and the traditional manual door opening and closing method is no longer applicable. And it is also required to send corresponding instructions after the door is fully opened and closed. The upper and lower infrared induction switches of the present invention have the transmission of signals of the door switch position to achieve the coordinated operation of each machine. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic door opening and closing mechanism for a biological rocking bed, so as to realize the function of a tension spring balancing the door gravity to realize the small motor driving a door with a larger gravity, realize information transmission through upper and lower infrared sensors, and finally realize automatic lifting, freeing both hands, and cooperating with a mechanical arm to realize the purpose of unmanned operation.

[0005] In order to solve the above technical problems, the present invention provides an automatic door opening and closing mechanism for a biological shaking bed, including a stepping motor, a synchronous belt, a transmission component, a sealing door and a gravity balance component.

[0006] A synchronous belt is installed on the surface of one side of the stepper motor, a transmission component is installed on the other end of the synchronous belt, a sealing door is installed on the front end surface of the transmission component, and a gravity balance component is arranged at the rear end of the transmission component.

[0007] Furthermore, a stepping pulley is installed on one side surface of the stepping motor, and an infrared reaction block is arranged on the surface of the stepping motor.

[0008] Furthermore, the transmission assembly includes a transmission shaft mounted in an engaging manner with a synchronous belt, an upper support rod is provided on the surface of the transmission shaft away from the stepper motor, a lower support rod is movably installed on the inner wall of the biological shaker, a flip disk is fixedly connected to the surface of the transmission shaft on the other side of the upper support rod, and the above-mentioned components are provided on the other end of the transmission shaft.

[0009] Furthermore, a movable shaft is provided at the other end of the lower support rod, and the movable shaft is installed on the inner surface of the sealing door, and the other ends of the upper support rods are movably connected to the inner surface of the sealing door.

[0010] Furthermore, an upper infrared sensor and a lower infrared sensor are installed on the inner wall surface of the biological shaking table.

[0011] Furthermore, the gravity balancing assembly includes a movable hook, the other end of the movable hook is movably connected to a gravity spring, and the other end of the gravity spring is installed with a threaded pitch-adjusting rod.

[0012] Furthermore, the movable hook is movably connected to the flip plate through a movable connection.

[0013] Furthermore, movable shafts are provided at both ends of the gravity spring, which are movably connected to the movable hook and the threaded pitch-adjusting rod respectively.

[0014] Furthermore, plastic sealing strips are installed on the surrounding surfaces of the inner side of the sealed door.

[0015] Furthermore, an infrared reflective element is installed on one side surface of the flip plate, and the infrared reflective element is vertically aligned with the upper infrared sensor and the lower infrared sensor.

[0016] Furthermore, the threaded pitch-adjusting rod is fixed to the inner wall of the biological shaker via a gasket.

[0017] Furthermore, a synchronous belt is sleeved and installed on the surface of the stepping pulley.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects: the signal is received by the infrared sensor to control the stopping of the stepping motor. The other end of the infrared reflection block is connected with a movable hook, and the movable hook and the gravity spring are used to adjust the tightness of the spring through the threaded pitch adjustment rod to achieve a better balance of the gravity of the door, so as to realize the effect of a small motor driving a door with a larger gravity. At the same time, since most of the gravity of the door is balanced by the spring, the force without electricity is very small during the opening and closing process of the door. The power is transmitted by the synchronous belt, which can play a buffering role and make the door run smoothly during the opening and closing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the automatic door opening and closing mechanism of the biological shaking table of the present invention;

[0020] Figure 2 This is a schematic diagram of the use structure of the transmission assembly of the automatic door opening and closing mechanism of the biological shaking table of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall structure of another embodiment of the transmission assembly of the automatic door opening and closing mechanism of the biological shaking table of the present invention;

[0022] Figure 4 It is a schematic diagram of the use structure of the automatic door opening and closing mechanism of the biological shaking table of the present invention when the sealed door is opened;

[0023] Figure 5 It is a schematic diagram of the overall structure of the gravity balance component of the automatic door opening and closing mechanism of the biological shaking table of the present invention. DETAILED DESCRIPTION

[0024] The automatic door opening and closing mechanism of the biological shaking bed of the present invention will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiment of the present invention is shown, and it should be understood that those skilled in the art can modify the present invention described herein and still achieve the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation of the present invention.

[0025] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an automatic door opening and closing mechanism for a biological rocking bed, comprising a stepping motor 1, a synchronous belt 2, a transmission component 3, a sealing door 4 and a gravity balance component 5.

[0027] A synchronous belt 2 is installed on the surface of one side of the stepper motor, a transmission component 3 is installed on the other end of the synchronous belt 2, a sealing door 4 is installed on the front end surface of the transmission component 3, and a gravity balance component 5 is arranged at the rear end of the transmission component 3.

[0028] In this embodiment, when the sealing door 4 is in a fully opened or fully closed state, the infrared sensor receives a signal and controls the stepping motor 1 to stop rotating.

[0029] In the closed state, the lower infrared sensor 305 transmits a signal to the infrared reflective element 307 on the surface of the flip disk 306, so that the stepper motor 1 works to drive the synchronous belt 2 to rotate, and then drives the transmission shaft 301 to rotate. The upper support rod 302 on the surface of the transmission shaft 301 is driven by the transmission shaft 301 to swing upward, driving the sealed door 4 to open upward. The lower support rod 303 on the surface of the sealed door 4 swings synchronously with the upper support rod 302 on the inner wall of the biological shaker, achieving stability in the process of raising the sealed door 4. At the same time, when the sealed door 4 is opened, the rotation of the transmission shaft 301 further drives the flip disk 306 on its surface to rotate. Under the action of the gravity spring 502, the gravity spring 502 will pull the flip disk 306 and the transmission shaft 301 to rotate. Since most of the gravity of the sealed door 4 is balanced by the gravity spring 502, the force without electricity is very small during the opening and closing process of the door. The small one transmits power through the synchronous belt 2, which can play a buffering role, so that the door runs smoothly during the opening and closing process. When the sealing door 4 needs to be closed, the upper infrared sensor sends a signal to reverse the stepper motor 1, drive the transmission shaft 301 to rotate, and then drive the upper support rod 302 and the lower support rod 303 to flip, so that the sealing door 4 completes the closing action, and the transmission shaft 301 drives the flip plate 306 to reverse and pull the gravity spring 502. Although the stretching of the gravity spring 502 is the longest at this time, the pulling direction of the gravity spring 502 relative to the force arm of the transmission shaft 301 is the smallest at this time, which is equivalent to the gravity spring 502 at this time. The rotation of the transmission shaft 301 has no effect, and the closed state of the door is in a tightly closed state under the action of the stepper motor 1.

[0030] A stepping pulley is installed on the surface of one side of the stepping motor, and an infrared reaction block is arranged on the surface of the stepping motor 1. The transmission assembly 3 includes a transmission shaft 301 which is mounted in an embedded manner with the synchronous belt 2. An upper support rod 302 is arranged on the surface of the transmission shaft 301 away from the stepping motor 1. A lower support rod 303 is movably installed on the inner wall of the biological shaker. A flip disk 306 is fixedly connected to the surface of the transmission shaft 301 on the other side of the upper support rod 302. The above components are arranged on the other end of the transmission shaft 301, and a synchronous belt 2 is sleeved and installed on the surface of the stepping pulley. In this embodiment, the infrared sensor receives the signal, so that the stepper motor 1 is turned on to drive the transmission shaft 301 at the other end of the synchronous belt 2 to rotate, and the upper support rod 302 is flipped upward or downward under the action of the transmission shaft 301, and the sealing door 4 at the other end of the upper support rod 302 is opened or closed with the flipping of the upper support rod 301. At the same time, the other end of the lower support rod 303 on the inner surface of the sealing door is movably connected to the inner side of the biological shaker, and together with the upper support rod 302, supports the sealing door 4, thereby achieving the purpose of smooth operation when opening or closing the sealing door 4.

[0031] The other end of the lower support rod 303 is provided with a movable shaft, and the movable shaft is installed on the inner surface of the sealed door 4. The other ends of the upper support rods 302 are movably connected to the inner surface of the sealed door 4. The upper infrared sensor 304 and the lower infrared sensor 305 are installed on the inner wall surface of the biological shaking table. The infrared reflection element 307 is installed on one side of the flip plate 306, and the infrared reflection element 307 is vertically aligned with the upper infrared sensor 304 and the lower infrared sensor 305. In this embodiment, the rotation of the transmission shaft 301 drives the flip plate 306 on its surface to rotate, and the infrared reflection element 307 on the surface of the flip plate 306 rotates on the surface of the transmission shaft 301 through the flip plate 306, respectively sensing the state of the biological shaking table when the door is opened and closed, thereby controlling the start and stop of the stepper motor 1.

[0032] The gravity balance component 5 includes a movable hook 503, the other end of which is movably connected to a gravity spring 502, and the other end of the gravity spring 502 is installed with a threaded pitch-adjusting rod 501. The movable hook 503 is movably connected to the flip plate 306 through a movably connected connection. Both ends of the gravity spring 502 are provided with movable shafts, which are respectively movably connected to the movable hook 503 and the threaded pitch-adjusting rod 501, and the threaded pitch-adjusting rod 501 is fixed to the inner wall of the biological shaker through a gasket. In this embodiment, the flipping of the flip disk 306 on the surface of the transmission shaft 301 drives the movable hook 503 and the gravity spring 502 to move. When the sealing door 4 is opened, the flip disk 306 and the transmission shaft 301 are pulled by the movable hook 503 and the gravity spring 502 to open the sealing door 4. The stepper motor 1 does not need a lot of power to drive the transmission shaft 306 to rotate, and then drives the sealing door 4 to rise, so that the gravity spring 502 balances the gravity of the door, so that the stepper motor 1 is not affected by the weight of the door. The variable force arm principle is used to balance the tension of the gravity spring 502 and the gravity of the door. The movable hook 503 and the gravity spring 502 adjust the tightness of the spring through the threaded adjustment rod 501 to better balance the gravity of the door, thereby realizing the effect of a small motor driving a door with a larger gravity.

[0033] The inner surface of the sealing door is provided with plastic sealing strips. In this embodiment, the sealing door 4 is in a closed state under the force of the stepping motor 1, and the plastic sealing strips are provided on the inner surface to ensure the airtightness of the box.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A biological shaking bed automatic door opening and closing mechanism, characterized in that: Including stepper motor, synchronous belt, transmission assembly, sealing door and gravity balance assembly; A synchronous belt is installed on one side of the stepper motor, a transmission assembly is installed on the other end of the synchronous belt, a sealing door is installed on the front end surface of the transmission assembly, and a gravity balance assembly is arranged at the rear end of the transmission assembly; The transmission assembly includes a transmission shaft that is fitted with a synchronous belt, an upper support rod is arranged on the surface of the transmission shaft away from the stepping motor, a lower support rod is movably installed on the inner wall of the biological shaker, a flip plate is fixedly connected to the surface of the transmission shaft on the other side of the upper support rod, and the upper support rod and the lower support rod are arranged on the other end of the transmission shaft; An upper infrared sensor and a lower infrared sensor are installed on the inner wall surface of the biological shaking table; The gravity balance assembly comprises a movable hook, the other end of which is movably connected to a gravity spring, and the other end of which is mounted with a threaded pitch-adjusting rod; An infrared reflective element is installed on one side surface of the flip plate, and the infrared reflective element is vertically aligned with the upper infrared sensor and the lower infrared sensor.

2. The automatic door opening and closing mechanism of the biological shaking bed as claimed in claim 1, characterized in that: A stepping belt wheel is installed on one side surface of the stepping motor, and an infrared reaction block is arranged on the surface of the stepping motor.

3. The automatic door opening and closing mechanism of the biological shaking bed according to claim 1, characterized in that: The other end of the lower support rod is provided with a movable shaft, and the movable shaft is installed on the inner surface of the sealing door, and the other end of the upper support rod is movably connected to the inner surface of the sealing door.

4. The automatic door opening and closing mechanism of the biological shaking bed according to claim 1, characterized in that: The movable buckle hook is movably connected to the flip plate through a movable connection.

5. The automatic door opening and closing mechanism of the biological shaking table as claimed in claim 4, characterized in that: Both ends of the gravity spring are provided with movable shafts, which are movably connected with the movable buckle hook and the threaded pitch-adjusting rod respectively.

6. The automatic door opening and closing mechanism of the biological shaking bed according to claim 1, characterized in that: Plastic sealing strips are installed on the surrounding surfaces of the inner side of the sealing door.

7. The automatic door opening and closing mechanism of the biological shaking table as claimed in claim 1, characterized in that: The threaded pitch-adjusting rod is fixed to the inner wall of the biological shaking table through a gasket.

8. The automatic door opening and closing mechanism of the biological shaking table as claimed in claim 2, characterized in that: A synchronous belt is sleeved and installed on the surface of the stepping pulley.

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