Pressure maintaining device

Abstract

The utility model discloses a pressure maintaining device, which relates to the technical field of screen pressure maintaining and comprises a pressure maintaining support, a pressure maintaining driving device is assembled on the pressure maintaining support, the pressure maintaining driving device can act on a pressure maintaining plate and provide pressure for the pressure maintaining plate, and a reset guide structure is connected between the pressure maintaining plate and the pressure maintaining support. The pressure maintaining driving device can drive the pressure maintaining plate to press downwards relative to the pressure maintaining support, and the reset guiding structure can drive the pressure maintaining plate to reset in the non-pressure state. The utility model provides a pressure maintaining driving device and aims to solve the problems that the existing pneumatic pressure-maintained equipment is non-uniform in pressure, cannot adapt to an inclined pressure maintaining surface, is complex to operate, is easy to damage and the like in the process of gluing square-shaped glue on a display screen of a fluorescent quantitative PCR (Polymerase Chain Reaction) instrument. By means of the pressure maintaining support, the pressure maintaining driving device and the pressure maintaining device of the reset guiding structure, it is guaranteed that the square-shaped glue is evenly pressed, the damage risk is reduced, and efficient and reliable display screen attaching is achieved.

Description

Technical Field

[0001] This utility model relates to the field of screen pressure protection technology, specifically to a pressure protection device. Background Technology

[0002] In the display industry, screen bonding methods mainly include full lamination and "U"-shaped adhesive bonding. Full lamination, by directly and completely bonding the display to the device body, improves the overall display effect and sealing performance, but this method is generally suitable for larger screens and those requiring high precision. "U"-shaped adhesive bonding, on the other hand, uses "U"-shaped tape to bond the display to the device body, and is suitable for smaller screens and those requiring medium precision. Real-time PCR instruments typically use "U"-shaped adhesive bonding to ensure an economical and reliable connection between the display and the device body. However, existing pneumatic pressure-holding devices have several problems due to the unique structure of quantitative PCR instruments: First, while these devices can provide significant pressure, it's difficult to ensure uniform pressure distribution around the display screen, leading to uneven adhesion of the adhesive and affecting the display performance and reliability. Second, the structural design of quantitative PCR instruments is unique; the pressure-holding surface is no longer horizontal, while traditional pneumatic pressure-holding devices are typically designed for horizontal pressure holding, making them unsuitable for this inclined surface and resulting in poor adhesion. Furthermore, existing pneumatic pressure-holding devices require complex gas path systems and control devices, increasing manufacturing costs and complicating operation and maintenance. Finally, inaccurate pressure control during the use of traditional pneumatic pressure-holding devices can easily damage the main body and display screen of the quantitative PCR instrument, affecting its lifespan and performance. Therefore, there is an urgent need for a pressure-holding device that can solve these problems, achieving efficient, accurate, economical, and reliable adhesive bonding of the quantitative PCR instrument display screen. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems by providing a pressure-holding device. This device aims to solve the problems of uneven pressure distribution, inability to adapt to inclined pressure-holding surfaces, complex operation, lack of flexibility, and easy damage to the equipment caused by existing pneumatic pressure-holding devices during the application of adhesive to the display screen of a quantitative PCR instrument. By designing a pressure-holding device including a pressure-holding bracket, a pressure-holding drive device, and a reset guide structure, the device ensures that the adhesive receives uniform and fixed pressure during activation. This adapts to the specific structure of the quantitative PCR instrument, simplifies operation and maintenance procedures, allows for rapid adaptation to different models and sizes of equipment, and reduces the risk of equipment damage. This achieves an efficient, accurate, economical, and reliable display screen application.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A pressure-holding device includes a pressure-holding bracket, on which a pressure-holding driving device is mounted. The pressure-holding driving device can act on a pressure-holding plate and provide pressure to the pressure-holding plate. A reset guide structure is connected between the pressure-holding plate and the pressure-holding bracket. The pressure-holding driving device can drive the pressure-holding plate to press down relative to the pressure-holding bracket. The reset guide structure can drive the pressure-holding plate to reset in a pressure-free state.

[0006] Furthermore, the pressure-holding bracket includes a receiving area for accommodating the pressure-holding device, and a pressure-holding operation area is located above the receiving area. The pressure-holding plate can move along the reset guide structure within the pressure-holding operation area, and the pressure-holding plate can provide pressure to the pressure-holding device under the action of the pressure-holding drive device.

[0007] Furthermore, the pressure-holding bracket includes a base plate, an upright plate, and a support plate. The support plate is assembled to the base plate via the upright plate. The pressure-holding drive device and the reset guide structure are both assembled to the support plate. The pressure-holding plate is parallel to the support plate. The base plate, the upright plate, and the pressure-holding plate cooperate with each other to form a receiving area.

[0008] Furthermore, the pressure-holding drive device includes a support part, a drive linkage part, a drive handle, and a pressure-holding part. The support part is assembled on a support plate. The drive linkage part includes a first link, a second link, and a third link. The first link and the second link are hinged to the support part at intervals. The two ends of the third link are respectively hinged to the other ends of the support part where the first link and the second link are connected. The drive handle and the pressure-holding part are disposed opposite each other on opposite sides of the drive linkage part. The drive handle is connected to the side of the first link near the third link, and the pressure-holding part is connected to the middle of the second link. The drive handle can drive the pressure-holding part to press down or lift up through the drive linkage part. When the pressure-holding part is pressed down, it can act on the pressure-holding plate.

[0009] Furthermore, the pressure-holding part includes a pressure rod part and a pressure head, and the pressure head is connected to the second connecting rod through the pressure rod part; the pressure head is a frustum structure that is larger at the top and smaller at the bottom.

[0010] Furthermore, the reset guide structure includes a guide shaft and a spring, the pressure plate is provided with a guide hole, one end of the guide shaft is connected to the support plate, and the other end is inserted into the pressure plate through the guide hole, and the pressure plate can move along the length direction of the guide shaft.

[0011] Furthermore, the base plate is provided with a limiting block that can restrict the pressure-holding equipment.

[0012] Furthermore, the plane on which the support plate is located is a non-horizontal plane that forms an angle with the horizontal plane.

[0013] Further, a flexible pressing frame is provided below the pressure maintaining plate, and the flexible pressing frame is fixedly connected to the pressure maintaining plate.

[0014] Further, the paired pressure maintaining driving devices are oppositely arranged, and the paired pressure maintaining driving devices cooperate with each other to drive the displacement of the pressure maintaining plate.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0016] 1. By designing the pressure maintaining plate and the flexible pressing frame, the present utility model ensures that the four sides of the display screen are evenly pressed, improves the bonding effect of the "mouth" shaped glue, and avoids display performance and reliability problems caused by uneven pressure.

[0017] 2. The plane where the support plate of the present utility model is located forms a non-horizontal plane with an included angle with the horizontal plane, adapting to the specific structure and inclined pressure maintaining surface of the fluorescence quantitative PCR instrument, and ensuring the fitting effect.

[0018] 3. The present utility model adopts a manual driving handle and a simple mechanical link structure to replace the complex gas circuit system and control device, reduces the manufacturing cost, and simplifies the operation and maintenance processes.

[0019] 4. The limiting block of the present utility model is adjustably connected to the bottom plate through a kidney-shaped hole, facilitating rapid adaptation to fluorescence quantitative PCR instruments of different sizes and models, and improving the applicability of the device.

[0020] 5. Through the cooperation of the pressure maintaining plate and the reset guiding structure, the present utility model realizes rapid and accurate pressure application and reset, improves the fitting efficiency, and shortens the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the pressure maintaining driving device pressing down of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the pressure maintaining driving device lifting up of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the pressure maintaining plate of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the pressure maintaining driving device of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the reset guiding structure of the present utility model.

[0026] The markings in the diagram are: 1-Pressure holding plate, 2-Reset guide structure, 3-Support plate, 4-Upright plate, 5-Base plate, 6-Pressure holding drive device, 7-Limiting block, 8-Flexible pressure frame, 21-Linear bearing, 22-Guide shaft, 23-Spring, 61-Drive handle, 62-Support part, 63-Pressure head, 64-First connecting rod, 65-Second connecting rod, 66-Third connecting rod. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] Example 1

[0030] A pressure-holding device, such as Figure 1-5 As shown, it includes a pressure-holding bracket, on which a pressure-holding drive device 6 is mounted. The pressure-holding drive device 6 can act on the pressure-holding plate 1 and provide pressure to the pressure-holding plate 1. A reset guide structure 2 is connected between the pressure-holding plate 1 and the pressure-holding bracket. The pressure-holding drive device 6 can drive the pressure-holding plate 1 to press down relative to the pressure-holding bracket. The reset guide structure 2 can drive the pressure-holding plate 1 to reset in a pressureless state.

[0031] The pressure-holding bracket includes a receiving area for accommodating the device to be pressure-held, and a pressure-holding operation area above the receiving area. The pressure-holding plate 1 can move along the reset guide structure 2 within the pressure-holding operation area. The pressure-holding plate 1 can provide pressure to the device to be pressure-held under the action of the pressure-holding drive device 6, and the pressure is 0-400 kFG. The device to be pressure-held includes a device body and a display screen. The display screen is attached to the device body with adhesive tape. The pressure-holding plate 1 is arranged parallel to the display screen to press the display screen against the device body, thereby activating the adhesive tape used to attach the display screen. In this embodiment, the device to be pressure-held is a real-time PCR instrument.

[0032] The pressure-holding bracket includes a base plate 5, an upright plate 4, and a support plate 3. The upright plate 4 is perpendicular to the base plate 5. The support plate 3 is assembled to the base plate 5 via the upright plate 4. To improve the stability of the support plate 3, each support plate 3 is matched with two upright plates 4 spaced apart. Of course, the number of upright plates 4 is not limited, and more can be configured as needed. The pressure-holding drive device 6 and the reset guide structure 2 are both assembled to the support plate 3. The pressure-holding plate 1 is parallel to the support plate 3. The base plate 5, the upright plate 4, and the pressure-holding plate 1 cooperate to form a receiving area. The width of the receiving area is limited by the upright plates 4 on both sides, so that the width of the receiving area matches the pressure-holding equipment and is used to limit the pressure-holding equipment.

[0033] The pressure-holding drive device 6 includes a support part 62, a drive linkage part, a drive handle 61, and a pressure-holding part. The support part 62 is assembled on the support plate 3. The drive linkage part includes a first link 64, a second link 65, and a third link 66. The first link 64 and the second link 65 are hinged to the support part 62 at intervals. The two ends of the third link 66 are respectively hinged to the other ends of the support part 62 that are opposite to the first link 64 and the second link 65. The drive handle 61 and the pressure-holding part are located on opposite sides of the drive linkage part. The drive handle 61 is connected to the side of the first link 64 near the third link 66 to facilitate the operator to apply force. The pressure-holding part is connected to the middle of the second link 65. The drive handle 61 can drive the pressure-holding part to press down or lift up through the drive linkage part. When the pressure-holding part is pressed down, it can act on the pressure-holding plate 1.

[0034] The pressure-holding part includes a pressure rod and a pressure head 63. The pressure head 63 is connected to the second connecting rod 65 through the pressure rod. The pressure head 63 has a frustum structure that is larger at the top and smaller at the bottom. This ensures that the pressure head 63 effectively transmits pressure to the pressure-holding plate 1.

[0035] The base plate 5 is provided with a limiting block 7 that can restrict the pressure-holding equipment. The limiting block 7 is adjustablely connected to the base plate 5 through a slotted hole.

[0036] The reset guide structure 2 includes a guide shaft 22 and a spring 23. The pressure plate 1 is provided with a guide hole. One end of the guide shaft 22 is connected to the support plate 3 through a linear bearing 21, and the other end is inserted into the pressure plate 1 through the guide hole. The pressure plate 1 can move along the length direction of the guide shaft 22.

[0037] The support plate 3 forms an angle of 15-20 degrees with the horizontal plane. In this embodiment, the angle between the support plate 3 and the horizontal plane is preferably 18 degrees.

[0038] A flexible pressure frame 8 is fixedly connected below the pressure plate 1 to transmit the pressure of the pressure plate 1. The flexible pressure frame 8 is matched with the "U"-shaped adhesive used to attach the display screen. Preferably, the flexible pressure frame 8 is made of polyurethane contour plate.

[0039] The pair of pressure-holding drive devices 6 are arranged opposite each other, and the pair of pressure-holding drive devices 6 cooperate with each other to drive the pressure-holding plate 1 to move.

[0040] In use, first adjust the position of the upper limit block 7 on the base plate 5 according to the size of the quantitative PCR instrument to ensure that the instrument is correctly positioned within the receiving area. Then, use the "U"-shaped adhesive tape to attach the display screen to the main body of the device. Push the quantitative PCR instrument into the receiving area from one side opening until it abuts against the limit block 7, completing the positioning of the instrument. The operator holds the drive handle 61 with both hands and uses the drive linkage to press down the pressure holding part, causing the pressure head 63 to abut against the pressure holding plate 1. This moves the pressure holding plate 1 along the guide shaft 22 until the flexible pressure frame 8 below the pressure holding plate 1 abuts against and presses the edge of the display screen. At this point, the display screen is subjected to uniform pressure around its perimeter, ensuring that the "U"-shaped adhesive tape adheres fully, thereby activating its bonding properties and achieving a firm bond between the display screen and the main body of the device. Maintain this pressure for a certain period of time, usually 1-2 minutes, to ensure that the adhesive fully cures. During this period, the operator can observe the adhesion between the display screen and the main body of the device. Once it is confirmed that the display screen is firmly attached, the operator can slowly lift the drive handle 61. As the drive handle 61 is lifted, the pressure head 63 disengages from the pressure holding plate 1. The spring 23 in the reset guide structure 2 then drives the pressure holding plate 1 to rise smoothly along the guide shaft 22 under no-pressure conditions through elastic force. In this embodiment, four springs 23 are provided, respectively located at the four corners of the pressure holding plate. The elastic coefficient of the springs 23 is 6.42 N / mm to 6.72 N / mm. Finally, the real-time PCR instrument is removed from the opening on one side of the receiving area. After removal, check the adhesion of the display screen to ensure that it is evenly and firmly attached to the main body of the device, without air bubbles or looseness. Through this series of operations, the pressure holding device can efficiently and accurately complete the adhesion of the real-time PCR instrument display screen, ensuring the reliability and performance of the device.

[0041] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0042] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

Claims

1. A pressure maintaining device, characterized by, The device includes a pressure-holding bracket, on which a pressure-holding drive device is mounted. The pressure-holding drive device can act on a pressure-holding plate and provide pressure to the pressure-holding plate. A reset guide structure is connected between the pressure-holding plate and the pressure-holding bracket. The pressure-holding drive device can drive the pressure-holding plate to press down relative to the pressure-holding bracket. The reset guide structure can drive the pressure-holding plate to reset in the absence of pressure.

2. The pressure-holding device as described in claim 1, characterized in that, The pressure-holding bracket includes a receiving area for accommodating the pressure-holding equipment, and a pressure-holding operation area above the receiving area. The pressure-holding plate can move along a reset guide structure within the pressure-holding operation area, and the pressure-holding plate can provide pressure to the pressure-holding equipment under the action of a pressure-holding drive device.

3. The pressure-holding device as described in claim 2, characterized in that, The pressure-holding bracket includes a base plate, an upright plate, and a support plate. The support plate is assembled to the base plate via the upright plate. The pressure-holding drive device and the reset guide structure are both assembled to the support plate. The pressure-holding plate is parallel to the support plate. The base plate, the upright plate, and the pressure-holding plate cooperate with each other to form a receiving area.

4. The pressure-holding device as described in claim 3, characterized in that, The pressure-holding drive device includes a support part, a drive linkage part, a drive handle, and a pressure-holding part. The support part is assembled on a support plate. The drive linkage part includes a first link, a second link, and a third link. The first link and the second link are hinged to the support part at intervals. The two ends of the third link are respectively hinged to the other ends of the support part where the first link and the second link are connected. The drive handle and the pressure-holding part are located on opposite sides of the drive linkage part. The drive handle is connected to the side of the first link near the third link. The pressure-holding part is connected to the middle of the second link. The drive handle can drive the pressure-holding part to press down or lift up through the drive linkage part. When the pressure-holding part is pressed down, it can act on the pressure-holding plate.

5. The pressure-holding device as described in claim 4, characterized in that, The pressure-holding part includes a pressure rod part and a pressure head, and the pressure head is connected to the second connecting rod through the pressure rod part; the pressure head is a frustum structure that is larger at the top and smaller at the bottom.

6. The pressure-holding device as described in claim 3, characterized in that, The reset guide structure includes a guide shaft and a spring. The pressure plate is provided with a guide hole. One end of the guide shaft is connected to the support plate, and the other end is inserted into the pressure plate through the guide hole. The pressure plate can move along the length of the guide shaft.

7. The pressure-holding device as described in claim 3, characterized in that, The base plate is provided with a limit block that can restrict the pressure-holding equipment.

8. The pressure-holding device as described in claim 3, characterized in that, The plane on which the support plate is located is a non-horizontal plane that forms an angle with the horizontal plane.

9. The pressure-holding device as described in claim 1, characterized in that, A flexible pressure frame is provided below the pressure plate.

10. The pressure-holding device according to any one of claims 1-9, characterized in that, The pair of pressure-holding drive devices are arranged opposite each other, and the pair of pressure-holding drive devices cooperate to drive the pressure-holding plate to move.

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