Automatic lifting door structure for a test chamber

Abstract

This utility model relates to the field of lifting door technology, and particularly to an automatic lifting door structure for a test chamber. It includes a mounting plate, a door panel, and a drive mechanism. The mounting plate is vertically positioned on opposite sides of the test chamber doorway. Guide grooves are provided on the facing surfaces of the mounting plate, including straight guide grooves and inclined guide grooves. The bottom ends of the inclined guide grooves are connected to the bottom ends of the straight guide grooves. The inclined guide grooves slope downwards towards the test chamber doorway. Rolling elements are fixed on opposite sides of the door panel, located within the guide grooves and capable of sliding along them. At least one mounting plate is equipped with a drive mechanism for driving the door panel to slide along the guide grooves. When the rolling elements slide to the bottom end, the door panel presses against the sealing strip on the test chamber doorway. This utility model's automatic lifting door structure for test chambers aims to solve the technical problem that existing test chamber door panels cannot press against the sealing strip on the test chamber doorway, resulting in poor sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of lifting door technology, specifically to an automatic lifting door structure for a test chamber. Background Technology

[0002] In the field of climate environment testing equipment, the door of the test chamber is the core structure that maintains the specific test environment inside the chamber (such as extreme temperature and humidity, cleanliness, corrosive atmosphere, etc.). Its sealing performance and operational stability directly determine the controllability of the test environment, and thus affect the accuracy and reliability of the test data.

[0003] In the prior art, the door panel of the environmental test chamber usually adopts a cylinder-driven lifting structure. This structure usually fixes the cylinder body to the top crossbeam of the test chamber, and the piston rod of the cylinder is rigidly connected to the upper part of the door body through a flange. The extension and retraction movement of the piston rod of the cylinder drives the door panel to move up and down along the slide rail.

[0004] However, when the cylinder drives the door panel to rise and fall, the piston rod of the cylinder usually moves the door panel straight up and down, which makes it impossible for the door panel to press against the sealing strip on the door of the test chamber, resulting in poor sealing performance. Utility Model Content

[0005] In view of this, the present invention provides an automatic lifting door structure for a test chamber, which aims to solve the technical problem that the door panel of the existing test chamber cannot be pressed against the sealing strip on the door of the test chamber, resulting in poor sealing performance.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic lifting door structure for a test chamber, including a mounting plate, a door panel, and a drive mechanism. The mounting plate is vertically arranged on opposite sides of the test chamber door. Guide grooves are provided on the opposite surfaces of the mounting plate. The guide grooves include straight guide grooves and inclined guide grooves. The straight guide grooves extend vertically, and the bottom ends of the inclined guide grooves are connected to the straight guide grooves. The inclined guide grooves are inclined from top to bottom towards the test chamber door. Rolling elements are fixed on opposite sides of the door panel. The rolling elements are located in the guide grooves and can slide along the guide grooves. At least one of the mounting plates is provided with a drive mechanism. The drive mechanism is used to drive the door panel to slide along the guide grooves, so as to drive the rolling elements to move back and forth between the inclined guide grooves and the straight guide grooves. When the rolling elements slide to the bottom end of the inclined grooves, the door panel is pressed against the sealing strip on the test chamber door.

[0007] Furthermore, the driving mechanism includes a driving unit and a sliding assembly. The sliding assembly is slidably mounted on the mounting plate in a vertical direction. The driving unit is mounted on the mounting plate and is used to drive the sliding assembly to raise and lower the door panel.

[0008] Furthermore, the sliding component includes a slider, a connecting block is provided on the slider, and an inclined slot is provided on the connecting block, the inclination direction of the slot being opposite to the inclination direction of the inclined guide groove; connecting components are provided on the two opposite outer walls of the door panel, and the connecting components are slidably connected in the slot.

[0009] Furthermore, the connecting assembly includes a connecting block and a roller. The connecting block is fixed to the door panel, and the roller is disposed on the connecting block. The roller is located in the groove and can slide along the inclined direction of the groove.

[0010] Furthermore, grooves are correspondingly formed on the opposing surfaces of the two mounting plates, and an embedding block is embedded in the groove.

[0011] Furthermore, an upper limit buffer is provided on the top of the mounting plate to limit the upward movement of the sliding component.

[0012] Furthermore, a lower limit buffer is provided at the bottom of the mounting plate to limit the downward travel of the sliding component.

[0013] Furthermore, the mounting plate is also equipped with an upper micro switch, which is triggered when the door panel is fully opened.

[0014] Furthermore, the mounting plate is also provided with a lower micro switch, which is triggered when the door panel is fully closed.

[0015] Furthermore, a limit elastic rubber block is provided on the mounting plate at the position corresponding to the lower micro switch.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The automatic lifting door structure for the test chamber of this utility model, by setting the guide groove as a straight guide groove and an inclined guide groove structure, when the drive mechanism drives the door panel to descend and close, the rolling element slides from the straight guide groove to the inclined guide groove. Since the inclined guide groove is inclined from top to bottom towards the door of the test chamber, the door panel can move laterally towards the door of the test chamber, and finally press the door panel with the sealing strip at the door of the test chamber. This solves the technical problem that the door panel of the existing test chamber cannot press with the sealing strip at the door of the test chamber, resulting in poor sealing performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 This is a schematic diagram of the mounting plate and guide groove structure of this utility model;

[0022] Figure 5 for Figure 4 Enlarged structural diagram at point C;

[0023] Figure 6 for Figure 1 Another structural diagram from a different angle;

[0024] Figure 7 This is a structural schematic diagram of the door panel involved in this embodiment;

[0025] Figure 8 This is a schematic diagram of the fracture structure of the mounting plate in this embodiment.

[0026] In the diagram: 101, mounting plate; 102, door panel; 103, straight guide groove; 104, inclined guide groove; 105, rolling element;

[0027] 201. Drive unit; 202. Sliding component; 203. Slider; 204. Groove; 205. Connecting block; 206. Linear guide rail;

[0028] 301. Connecting block; 302. Roller;

[0029] 401. Embedded block; 402. Groove;

[0030] 501. Upper limit buffer; 502. Upper micro switch; 503. Lower limit buffer; 504. Lower micro switch; 505. Limiting elastic rubber block. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] In the description of this utility model, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through other features. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Please refer to Figure 1 - Figure 8 This utility model provides an automatic lifting door structure for a test chamber.

[0036] Reference Figure 1 , Figure 4 , Figure 5 and Figure 7 The automatic lifting door structure for the test chamber includes a mounting plate 101, a door panel 102, and a drive mechanism. The mounting plate 101 is vertically mounted on opposite sides of the doorway of the test chamber by bolts, providing stable support for the entire door panel 102. Guide grooves are provided on the opposing surfaces of the mounting plate 101. The guide grooves include a straight guide groove 103 and an inclined guide groove 104. The straight guide groove 103 extends vertically, and the inclined guide groove 104 is connected to the bottom end of the straight guide groove 103. The inclined guide groove 104 is inclined from top to bottom toward the doorway of the test chamber. Rolling elements 105 are fixed on opposite sides of the door panel 102. The rolling elements 105 are located in the guide grooves and can slide along the guide grooves.

[0037] When the door panel 102 is in the upward or downward stroke, the rolling element 105 on the door panel 102 always slides along the guide groove.

[0038] The rolling element 105 is a bearing, which can reduce the friction between the guide groove and the rolling element 105, making the door panel 102 move more smoothly up and down.

[0039] When the door panel 102 descends to the position where it is about to close, the rolling element 105 on the door panel 102 enters the inclined guide groove 104 from the straight guide groove 103 and slides along the inclined guide groove 104, causing the door panel 102 to move closer to the door of the test chamber. When the rolling element 105 on the door panel 102 moves to the bottom of the inclined guide groove 104, the door panel 102 is pressed against the sealing strip at the door of the test chamber under the action of the inclined guide groove 104, and is tightly fitted with the sealing strip to achieve a tight seal.

[0040] It is worth mentioning that each mounting plate 101 has two guide grooves evenly arranged along its vertical direction. Rolling elements 105 are provided on both sides of the door panel 102 corresponding to each guide groove (that is, two rolling elements 105 are provided on each side of the outer wall of the door panel 102). When the door panel 102 is closed, the rolling elements 105 are all located at the bottom end of the inclined guide groove 104 in the guide groove, so that the upper and lower ends of the outer walls on both sides of the door panel 102 can be guided during the lifting and lowering process, ensuring that the displacement of the upper and lower ends of the door panel 102 is consistent, and further improving the stability of the door panel 102 during lifting and lowering.

[0041] Reference Figure 1 and Figure 3 At least one mounting plate 101 is provided with a driving mechanism. In this embodiment, both mounting plates 101 are provided with driving mechanisms. The driving mechanism is used to drive the door panel 102 to slide along the guide groove, so as to drive the rolling element 105 to move back and forth between the inclined guide groove 104 and the straight guide groove 103. When the rolling element 105 slides to the bottom of the inclined groove, the door panel 102 is pressed against the sealing strip on the door of the test chamber.

[0042] The drive mechanism includes a drive unit 201 and a sliding assembly 202. The drive unit 201 is mounted on the mounting plate 101 and is used to drive the sliding assembly 202 to raise and lower the door panel 102. The drive unit 201 includes a magnetically coupled rodless cylinder that is bolted to the mounting plate 101. A slider 203 is slidably connected to the magnetically coupled rodless cylinder. The drive unit 201 drives the sliding assembly 202 to move synchronously through the vertical movement of the slider 203, thereby driving the door panel 102 to rise (i.e., the door panel 102 opens) and fall (i.e., the door panel 102 closes) along the guide groove, thus realizing the automatic opening and closing of the door panel 102.

[0043] In other embodiments, the drive unit 201 may also be an electric actuator.

[0044] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7The sliding component 202 is vertically mounted on the mounting plate 101. The sliding component 202 includes a slider 203, which is slidably connected to a linear guide rail 206. The linear guide rail 206 is bolted to the mounting plate 101. A connecting block 205 is fixedly connected to one side of the slider 203. The connecting block 205 has an inclined slot 204 in the transverse direction. The inclination direction of the slot 204 is opposite to the inclination direction of the inclined guide groove 104. Connecting components are provided on the opposite outer walls of the door panel 102. The connecting components are slidably connected in the slot 204.

[0045] When the drive unit 201 drives the connecting block 205 to move vertically, the connecting component slides along the inclined slot 204 and cooperates with the guide slot to ensure that the door panel 102 can move smoothly up and down along the straight guide slot 103 and move towards the door of the test chamber under the guidance of the inclined guide slot 104, thereby achieving the pressing of the door panel 102 with the sealing strip and improving the sealing effect.

[0046] Specifically, the connecting assembly includes a connecting block 301, which is bolted to one side of the door panel 102. A roller 302 is mounted on the connecting block 301. The roller 302 is located in the slot 204 and can slide along the inclined direction of the slot 204. In other words, during the up and down movement of the door panel 102, the roller 302 slides in the slot 204 along the inclined direction of the slot 204.

[0047] The inclination direction of the slot 204 is opposite to that of the inclined guide groove 104. When the door panel 102 approaches the door of the test chamber (i.e. when the door panel 102 descends), the roller 302 slides from the bottom end of the slot 204 to the top end of the slot 204, thereby driving the door panel 102 to press further against the sealing strip at the door of the test chamber.

[0048] When the door panel 102 rises, the roller 302 slides from the top of the slot 204 to the bottom of the slot 204, and the connecting block 205 rises, which drives the door panel 102 to rise, so that the rolling element 105 moves from the inclined guide groove 104 to the vertical guide groove 103, ensuring that the door panel 102 rises smoothly.

[0049] Reference Figure 4 , Figure 5 and Figure 8The two mounting plates 101 have corresponding grooves 402 on their facing surfaces. An embedded block 401 is embedded in the groove 402. The embedded block 401 is used to fill the gap between the mounting plate 101 and the door panel 102. When the door panel 102 moves up or down or laterally along the guide groove, the embedded block 401 can limit the outer walls on both sides of the door panel 102 to prevent the door panel 102 from rubbing against the mounting plate 101 due to shaking or tilting. At the same time, it reduces the entry of external dust, moisture and other impurities into the test chamber through the gap between the mounting plate 101 and the door panel 102.

[0050] The embedded block 401 is inserted into the groove 402. The embedded block 401 of different thicknesses can be selected according to the gap between the door panel 102 and the mounting plate 101. After long-term use, if wear occurs, only the embedded block 401 needs to be replaced, which reduces maintenance and installation costs.

[0051] Reference Figure 3 and Figure 4 The top of the mounting plate 101 is provided with an upper limit buffer 501, which is used to limit the upward movement of the sliding component 202, ensuring that the door panel 102 is buffered when it is opened to the maximum stroke, and avoiding excessive upward movement that could cause the upper part of the door panel 102 to collide. The bottom of the mounting plate 101 is provided with a lower limit buffer 503, which is used to limit the upward movement of the sliding component 202, ensuring that the door panel 102 is buffered when it is closed, and preventing the door panel 102 from being damaged by excessive downward movement due to inertia when it is closed.

[0052] Both the upper limit buffer 501 and the lower limit buffer 503 have elastic buffering function. When the sliding component 202 reaches the end of its stroke, it absorbs the impact force through its own deformation, reducing the rigid collision between the sliding component 202 and the mounting plate 101, and reducing noise and component wear.

[0053] Reference Figure 2 , Figure 3 and Figure 8 The mounting plate 101 is also connected to an upper micro switch 502 and a lower micro switch 504 by bolts. The upper micro switch 502 is triggered when the door panel 102 is fully open, and the lower micro switch 504 is triggered when the door panel 102 is fully closed. The upper micro switch 502 and the lower micro switch 504 are connected to the drive unit 201 through electrical signal lines. The trigger signal can control the magnetic coupling rodless cylinder to automatically stop after the door panel 102 is in position.

[0054] A limiting elastic rubber block 505 is fixedly connected to the mounting plate 101 at the position corresponding to the lower micro switch 504. When the door panel 102 is fully closed, the sliding component 202 or the door panel 102 squeezes the rubber block to deform it, thereby using elastic force to help press the door panel 102 to enhance the sealing effect. In addition, the limiting elastic rubber block 505 can buffer the impact force when the door panel 102 descends under the action of gravity and the drive unit 201, and prevent the lower micro switch 504 from being damaged by rigid collision.

[0055] In summary, when the door panel 102 needs to be closed (i.e., when the door panel 102 moves downward), the drive unit 201 of the drive mechanism is activated. The drive unit 201 drives the sliding component 202 to move downward along the linear guide rail 206. The sliding component 202, through the cooperation of the connecting block 205 and the connecting component, drives the door panel 102 to descend accordingly. The rolling elements 105 on both sides of the door panel 102 slide from the linear guide groove 103 into the inclined guide groove 104 and slide along the inclined guide groove 104 (i.e., moving inclinedly from top to bottom towards the door of the test chamber). The sealing strip at the door of the test chamber 102 is pressed tightly. When the rolling element 105 slides to the bottom of the inclined guide groove 104, the sealing surface of the door 102 is pressed tightly against the sealing strip at the door of the test chamber. When the sliding component 202 moves to the lower micro switch 504 at the bottom of the mounting plate 101, the drive unit 201 stops automatically. The lower limit switch buffers the sliding component 202 to prevent the door 102 from moving too far down. The limit elastic rubber block 505 on the mounting plate 101 further buffers the sliding component 202.

[0056] When the door panel 102 needs to be opened (i.e., when the door panel 102 moves upward), the drive unit 201 of the cabinet drive mechanism is activated. The drive unit 201 drives the sliding component 202 to move upward along the linear guide rail 206 of the mounting plate 101. The sliding component 202 cooperates with the connecting components on both sides of the door panel 102 through the inclined slot 204 on the connecting block 205, driving the door panel 102 to rise. The rolling parts 105 on both sides of the door panel 102 gradually slide from the inclined guide groove 104 into the linear guide groove 103 and slide vertically upward along the linear guide groove 103. When the door panel 102 rises to the fully open state, the sliding component 202 triggers the upper micro switch 502 on the top of the mounting plate 101, the drive unit 201 automatically stops working, and the upper limit buffer 501 buffers and limits the sliding component 202 to avoid the door panel 102 from rising excessively and causing a collision.

[0057] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An automatic lifting door structure for a test chamber, comprising a mounting plate, a door panel, and a drive mechanism, wherein the mounting plate is vertically arranged on opposite sides of the doorway of the test chamber, and guide grooves are provided on the facing surfaces of the mounting plate, characterized in that: The guide groove includes a straight guide groove and an inclined guide groove. The straight guide groove extends vertically, and the inclined guide groove is connected to the bottom end of the straight guide groove. The inclined guide groove is inclined from top to bottom toward the door of the test chamber. Rolling elements are fixed on opposite sides of the door panel. The rolling elements are located in the guide groove and can slide along the guide groove. At least one of the mounting plates is provided with a driving mechanism. The driving mechanism is used to drive the door panel to slide along the guide groove, so as to drive the rolling elements to move back and forth between the inclined guide groove and the straight guide groove. When the rolling elements slide to the bottom end of the inclined groove, the door panel is pressed against the sealing strip on the door of the test chamber.

2. The automatic up and over door construction for a test chamber of claim 1 wherein: The driving mechanism includes a driving unit and a sliding assembly. The sliding assembly is slidably mounted on the mounting plate in a vertical direction. The driving unit is mounted on the mounting plate and is used to drive the sliding assembly to raise and lower the door panel.

3. The automatic up and over door construction for a test chamber of claim 2 wherein: The sliding component includes a slider, a connecting block is provided on the slider, and an inclined slot is provided on the connecting block. The inclined direction of the slot is opposite to the inclined direction of the inclined guide groove. Connecting components are provided on the two opposite outer walls of the door panel, and the connecting components are slidably connected in the slot.

4. The automatic up and over door construction for a test chamber of claim 3 wherein: The connecting assembly includes a connecting block and a roller. The connecting block is fixed to the door panel, and the roller is disposed on the connecting block. The roller is located in the groove and can slide along the inclined direction of the groove.

5. An automatic up and over door construction for a test chamber as claimed in claim 1 or 2 wherein: The two mounting plates have corresponding grooves on their facing surfaces, and an embedding block is embedded in each groove.

6. The automatic up and over door construction for a test chamber of claim 2 wherein: The top of the mounting plate is provided with an upper limit buffer to limit the upward movement of the sliding component.

7. The automatic up and over door construction for a test chamber of claim 2 wherein: The bottom of the mounting plate is provided with a lower limit buffer to limit the downward travel of the sliding component.

8. The automatic up and over door construction for a test chamber of claim 6 wherein: The mounting plate is also equipped with an upper micro switch, which is triggered when the door panel is fully opened.

9. The automatic up and over door construction for a test chamber of claim 7 wherein: The mounting plate is also equipped with a lower micro switch, which is triggered when the door panel is fully closed.

10. The automatic up and over door construction for a test chamber of claim 9 wherein: The mounting plate is provided with a limit elastic rubber block at the position corresponding to the lower micro switch.

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