Opening and closing mechanism for door cover of centrifugal machine

Abstract

The opening and closing mechanism for the centrifugal machine door cover comprises a machine body, one side of the machine body is connected with a cover plate through a bearing, a fixing assembly is arranged in the machine body and comprises a fixing plate, the circumferential outer wall of the fixing plate is connected with the machine body through bolts, and the cover plate is connected with the machine body through bolts. The top of the fixing plate is connected with a placing groove through a bolt, a clamping groove is formed in the inner wall of the placing groove, a hole groove is formed in the inner wall of the clamping groove, a first spring is welded to the inner wall of the hole groove, a cylinder is welded to one side of the first spring, and a clamping plate is connected to the inner wall of the placing groove in a clamped mode. According to the opening and closing mechanism and device for the centrifugal machine door cover, the fixing assembly is arranged, the sealing effect in a centrifugal machine can be better maintained, secondly, the resetting assembly is arranged, the sealing effect in the centrifugal machine can be better maintained, and therefore the sealing effect of the centrifugal machine can be better maintained. And the stability of the cover plate in the opening and closing process can be well maintained.

Description

A centrifuge door opening and closing mechanism Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to an opening and closing mechanism for a centrifuge door cover. Background Technology

[0002] In traditional centrifuges, the opening and closing of the large flap is typically powered by a spring cylinder, a pneumatic cylinder, or a hydraulic cylinder. Spring cylinders are used in smaller centrifuges where the overall weight of the large flap is not particularly heavy. For centrifuges with a heavier large flap, a hydraulic cylinder or a pneumatic cylinder is generally used.

[0003] The prior art patent document CN212397029U provides a safe centrifuge, including a centrifuge shell with a through hole on its upper surface; a centrifuge inner shell, disposed inside the centrifuge shell, which is a hollow structure with an opening at the top and contains a centrifuge chamber enclosed by the inner shell; a centrifuge door, hinged to the centrifuge shell, for covering the upper opening of the centrifuge chamber; a vacuum device, connected to the centrifuge chamber via a connecting pipe; and an aerosol filter, disposed on the connecting pipe. This centrifuge has a simple structure. After normal operation, the centrifuge chamber can be evacuated using the vacuum device. During the extraction process, the air is filtered and purified by the aerosol filter before flowing into the vacuum device and being discharged. This removes harmful aerosols from the centrifuge chamber while maintaining a negative pressure state to prevent residual aerosols from leaking into the environment, thus avoiding contamination of the laboratory environment and protecting operators from bacteria and viruses.

[0004] Although the device has many beneficial effects, the following problems still exist: If the cylinder malfunctions during use, the cover plate will be difficult to stably cover the surface of the machine body, and the sealing of the device will be difficult to maintain. Secondly, the locking tongue and locking hook close quickly, and the cover plate may close before the centrifuged sample is taken out, which may affect the use. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] In order to solve the problems of difficulty in maintaining the sealing performance of the above-mentioned devices and the ease with which they affect their use, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide an opening and closing mechanism for a centrifuge door cover, which aims to solve the problem of difficulty in maintaining the sealing of the device as much as possible and to minimize the impact on its use.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A centrifuge door opening and closing mechanism includes a body, a cover plate connected to one side of the body via a bearing, a fixing assembly inside the body, the fixing assembly including a fixing plate, the outer circumferential wall of the fixing plate being bolted to the body, a placement groove being bolted to the top of the fixing plate, a slot being formed in the inner wall of the placement groove, a hole being formed in the inner wall of the slot, a spring being welded to the inner wall of the hole, a cylinder being welded to one side of the spring, a locking plate being snapped into the inner wall of the placement groove, a locking block being bolted to the outer circumferential wall of the locking plate, a rotating pin being bolted to the top of the locking plate, a handle being fixed to the top of the rotating pin, and a reset assembly being provided on one side of the fixing assembly. The design of the hole and slot facilitates better fixing of the cylinder to the locking block.

[0012] As a preferred embodiment of the centrifuge door cover opening and closing mechanism of this utility model, the surface of the cover plate is provided with a circular groove, and the inner circumferential wall of the circular groove matches the outer circumferential wall of the rotating pin.

[0013] As a preferred embodiment of the centrifuge door opening and closing mechanism of this utility model, the reset assembly includes a first mounting plate. The bottom of the cover plate is bolted to the first mounting plate, and the bottom of the inner wall of the machine body is bolted to a second mounting plate. The bottom of both the first and second mounting plates is bolted to mounting blocks. The structural design of the first mounting plate facilitates the stable installation of the mounting blocks inside the cover plate, thereby facilitating angle changes in conjunction with the gas spring rod. The structural design of the second mounting plate facilitates the stable installation of the mounting blocks inside the machine body, thereby achieving the purpose of slow reset.

[0014] In a preferred embodiment of the centrifuge door cover opening and closing mechanism of this utility model, there are multiple fixing components, which are arranged in a ring shape.

[0015] As a preferred embodiment of the centrifuge door cover opening and closing mechanism of this utility model, the inner wall of the cover plate is connected with a rubber ring by bolts, the inside of the machine body is provided with a centrifuge inner cavity, and the inner circumferential wall of the rubber ring matches the outer circumferential wall of the centrifuge inner cavity.

[0016] The inner wall of the mounting block is provided with a mounting groove, and the inner wall of the mounting groove is connected to vertical block one and vertical block two by pin bolts.

[0017] The bottoms of the first vertical block and the second vertical block are respectively connected to the first circular plate and the second circular plate by bolts. A gas spring rod is bolted to one side of each of the first and second circular plates.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This centrifuge door cover uses an opening and closing mechanism with a fixing component. The handle drives the rotating pin to rotate, allowing the locking block to be slidably connected to the inner wall of the slot. It is locked by the force of the spring and the cylinder, thereby reducing the occurrence of the cover opening. With the addition of the rubber ring structure design, it is beneficial to maintain the sealing effect inside the centrifuge to a certain extent.

[0021] The centrifuge door cover opening and closing mechanism is equipped with a reset component. During the closing process of the cover, the gas spring rod always applies an upward elastic force to the cover, thereby reducing the possibility of the cover suddenly closing quickly during the opening and closing process. In addition, the supporting force of the gas spring rod is relatively uniform throughout the entire extension and retraction process of the cover, which helps to maintain the stability of the cover opening and closing process to a certain extent. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 is a schematic diagram of the overall structure of an opening and closing mechanism for a centrifuge door cover according to the present invention.

[0024] Figure 2 is an isometric schematic diagram of the overall structure of the centrifuge door cover opening and closing mechanism of this utility model;

[0025] Figure 3 is an exploded view of the fixing component structure of the opening and closing mechanism for a centrifuge door cover according to the present invention;

[0026] Figure 4 is a schematic diagram of the mounting block of the centrifuge door cover opening and closing mechanism of this utility model;

[0027] Figure 5 is a schematic diagram of the mounting block two of the centrifuge door cover opening and closing mechanism of this utility model.

[0028] The following are the labels in the diagram: 1. Body; 2. Cover plate; 3. Rubber ring; 4. Fixing plate; 5. Centrifuge inner cavity; 6. Fixing assembly; 61. Circular groove; 62. Locking block; 63. Locking plate; 64. Rotating pin; 65. Handle; 66. Placement groove; 67. Locking groove; 68. Hole groove; 69. Cylinder; 610. Spring one; 7. Reset assembly; 71. Mounting plate one; 72. Mounting block; 73. Mounting groove; 74. Pin bolt; 75. Vertical block one; 76. Circular plate one; 77. Gas spring rod; 78. Mounting plate two; 79. Circular plate two; 710. Vertical block two. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] The term "connection method" should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0034] This utility model provides an overall structural schematic diagram of an embodiment of an opening and closing mechanism for a centrifuge door, including:

[0035] Please refer to Figures 1-5. This utility model provides a technical solution:

[0036] A centrifuge door opening and closing mechanism includes a body 1. A cover plate 2 is connected to one side of the body 1 via a bearing. A fixing assembly 6 is disposed inside the body 1. The fixing assembly 6 includes a fixing plate 4. The outer circumferential wall of the fixing plate 4 is bolted to the body 1. A placement groove 66 is bolted to the top of the fixing plate 4. A slot 67 is formed on the inner wall of the placement groove 66. A hole groove 68 is formed on the inner wall of the slot 67. A spring 610 is welded to the inner wall of the hole groove 68. A cylinder 69 is welded to one side of the spring 610. A retaining plate 63 is snapped onto the inner wall of the placement groove 66. A retaining block 62 is bolted to the outer circumference of the retaining plate 63. A rotating pin 64 is bolted to the top of the retaining plate 63. A handle 65 is fixed to the top of the rotating pin 64. A reset component 7 is provided on one side of the fixing component 6. The handle 65 drives the rotating pin 64 to rotate, so that the retaining block 62 can be slidably connected to the inner wall of the groove 67 and is locked by the force of the spring 610 and the cylinder 69, thereby reducing the occurrence of the cover plate 2 popping open.

[0037] It is worth noting that, in order to assist the fixing pin in fixing the cover plate 2, a circular groove 61 is provided on the surface of the cover plate 2. The inner circumference of the circular groove 61 matches the outer circumference of the rotating pin 64. Through the structural design of the circular groove 61, the fixing pin can rotate well on its inner wall, thereby facilitating the fixing pin in fixing the cover plate 2.

[0038] Next, in order to securely fix mounting plate 71 and mounting plate 78 to the cover plate 2 and the outer wall of the body 1 respectively, the reset assembly 7 specifically includes mounting plate 71. Mounting plate 71 is bolted to the bottom of the cover plate 2, and mounting plate 78 is bolted to the bottom of the inner wall of the body 1. Mounting blocks 72 are bolted to the bottom of both mounting plate 71 and mounting plate 78. This threaded connection design of the mounting plates to the mounting blocks facilitates the secure fixing of mounting plate 71 and mounting plate 78 to the cover plate 2 and the outer wall of the body 1 respectively.

[0039] Meanwhile, in order to better reduce the occurrence of the cover plate 2 popping open, there are multiple fixing components 6, which are arranged in a ring shape. Through multiple ring-shaped reset components 7, the cover plate 2 can be fixed in multiple directions, thereby better reducing the occurrence of the cover plate 2 popping open.

[0040] Furthermore, in order to maintain a good sealing effect for the device, specifically, the inner wall of the cover plate 2 is connected with a rubber ring 3 by bolts, and the inside of the machine body 1 is provided with a centrifuge cavity 5. The inner circumference of the rubber ring 3 and the outer circumference of the centrifuge cavity 5 match. Through the structural design of the rubber ring 3, it is easy to maintain a good sealing effect for the device on the basis of the fixed component 6.

[0041] It is worth noting that, in order to better adjust the angles of the first vertical block 75 and the second vertical block 710 inside the mounting groove 73, the inner wall of the mounting block 72 is provided with a mounting groove 73. The inner wall of the mounting groove 73 is connected to the first vertical block 75 and the second vertical block 710 by pins and bolts 74. The structural design of connecting the first vertical block 75 and the second vertical block 710 by pins and bolts 74 facilitates better coordination with the opening of the cover plate 2 to change the specific angles of the first vertical block 75 and the second vertical block 710 inside the mounting groove 73.

[0042] Finally, to better maintain the stability of the cover plate 2 during the opening and closing process, specifically, the bottom of vertical block 1 75 and vertical block 2 710 are respectively connected to circular plate 1 76 and circular plate 2 79 by bolts. One side of circular plate 1 76 and circular plate 2 79 are each connected to a gas spring rod 77 by bolts. During the closing process of the cover plate 2, the gas spring rod applies an upward elastic force to the cover plate 2, thereby reducing the possibility of the cover plate 2 suddenly closing quickly during the opening and closing process. Moreover, the supporting force of the gas spring rod 77 is relatively uniform throughout the entire extension and retraction process of the cover, which facilitates better maintenance of the stability of the cover plate 2 during the opening and closing process to a certain extent.

[0043] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0044] Referring to Figures 1-5, the specific usage process of the centrifuge door opening and closing mechanism of this embodiment is as follows:

[0045] 1: When using this type of centrifuge with a door cover opening and closing mechanism, the operator moves the machine body 1 to a suitable position, opens the cover 2, puts the liquid to be centrifuged into the centrifuge inner cavity 5, and then connects the power supply to start using it.

[0046] 2: When the device needs to maintain a good and stable sealing effect, the device is equipped with a fixing component 6. The handle 65 drives the rotating pin 64, which is slidably connected to the inner wall of the circular groove 61, to rotate, so that the clamping plate 63 can be pressed down into the placement groove 66. This allows the clamping plate 63 to drive the clamping block 62 on its outer circumference to move in the inner wall of the clamping groove 67, and be clamped by the force of the spring 610 and the cylinder 69 provided in the hole groove 68. This reduces the occurrence of the cover plate 2 popping open. With the structural design of the rubber ring 3, this is conducive to better maintaining the sealing effect inside the centrifuge to a certain extent.

[0047] 3: When the device needs to maintain stability during the closing process of the cover plate 2, the device is equipped with a reset component 7. During the closing process of the cover plate 2, the vertical blocks 75 and 710 connected by pin bolts 74 through the inner wall of the mounting groove 73 inside the mounting block 72 allow the circular plates 76 and 79 to drive the gas spring rod 77 to easily change the angle. At this time, the gas spring rod 77 always applies an upward elastic force to the cover plate 2, thereby reducing the possibility of the cover plate 2 suddenly closing quickly during the opening and closing process, thus making it easier to maintain the stability of the cover plate 2 during the opening and closing process to a certain extent.

[0048] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A door cover opening and closing mechanism for a centrifuge, characterized by comprising: The system includes a body (1), one side of which is connected to a cover plate (2) via a bearing. A fixing assembly (6) is installed inside the body (1). The fixing assembly (6) includes a fixing plate (4). The outer circumferential wall of the fixing plate (4) is bolted to the body (1). A placement groove (66) is bolted to the top of the fixing plate (4). A slot (67) is formed on the inner wall of the placement groove (66), and a hole (68) is formed on the inner wall of the slot (67). A spring (610) is welded to the inner wall of the slot (68), and a cylinder (69) is welded to one side of the spring (610). A clamping plate (63) is snapped onto the inner wall of the placement slot (66). A clamping block (62) is bolted to the outer circumference of the clamping plate (63). A rotating pin (64) is bolted to the top of the clamping plate (63). A handle (65) is fixed to the top of the rotating pin (64). A reset component (7) is provided on one side of the fixing component (6).

2. The centrifuge door opening and closing mechanism according to claim 1, characterized in that, The surface of the cover plate (2) is provided with a circular groove (61), and the inner circumferential wall of the circular groove (61) matches the outer circumferential wall of the rotating pin (64).

3. The opening and closing mechanism for a centrifuge door cover according to claim 1, characterized by, The reset assembly (7) includes a mounting plate one (71), the bottom of the cover plate (2) is connected to the mounting plate one (71) by bolts, the bottom of the inner wall of the body (1) is connected to the mounting plate two (78) by bolts, and the bottom of the mounting plate one (71) and the mounting plate two (78) are both connected to the mounting block (72) by bolts.

4. The opening and closing mechanism for a door cover of a centrifuge according to Claim 1, wherein There are multiple fixing components (6), and the fixing components (6) are arranged in a ring shape.

5. The opening and closing mechanism for a centrifuge door cover according to claim 1, characterized by, The inner wall of the cover plate (2) is connected to a rubber ring (3) by bolts. The machine body (1) has a centrifuge cavity (5) inside. The inner circumference of the rubber ring (3) matches the outer circumference of the centrifuge cavity (5).

6. The centrifuge door opening and closing mechanism according to claim 3, characterized in that, The inner wall of the mounting block (72) is provided with a mounting groove (73), and the interior of the mounting block (72) is provided with a pin bolt (74); the inner wall of the mounting groove (73) is connected to vertical block one (75) and vertical block two (710) by pin bolt (74).

7. The centrifuge door opening and closing mechanism according to claim 6, characterized in that, The bottom of the first vertical block (75) and the second vertical block (710) are respectively connected to the first circular plate (76) and the second circular plate (79) by bolts. One side of the first circular plate (76) and the second circular plate (79) are each connected to a gas spring rod (77) by bolts.

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