Heavy duty manual flipper mechanism

Abstract

This utility model discloses a heavy-duty manual flip-top mechanism, specifically relating to the field of vacuum equipment technology. It includes a housing assembly and a flip-top arm for connecting a heavy-duty cover plate. The housing assembly includes a support housing serving as a support point and a rotating wheel for applying flip-top power. A rotating shaft is rotatably connected inside the support housing, with both ends of the shaft extending from opposite sides of the housing. The end of the rotating shaft is fixedly connected to one end of the flip-top arm. A transmission mechanism is provided between the rotating wheel and the rotating shaft. A pin connecting block for connecting to the heavy-duty cover plate is fixedly installed inside the end of the flip-top arm away from the rotating shaft. This utility model, by setting up the housing assembly and the flip-top arm, enables manual control of the flip-top of a heavy-duty cover plate, simplifying existing flip-top structures, reducing the complexity of the entire device, simplifying the flip-top operation during frequent opening and maintenance, and improving control flexibility and safety. It is applicable to this field.

Description

Technical Field

[0001] This utility model relates to the field of vacuum equipment technology, and more specifically, to a heavy-duty manual flip-top mechanism. Background Technology

[0002] In many high-tech fields such as semiconductor manufacturing, vacuum coating, analytical instruments, and high-energy physics experimental devices, the core functions of equipment are often performed within highly clean or specific atmospheres (such as vacuum) enclosed chambers. Such equipment, including wafer transfer chambers, vacuum coating chambers, and ion beam equipment ports, typically consists of complex structural components containing precision mechanical, optical, or electronic parts. Therefore, to ensure normal operation, precise control of process parameters, and regular maintenance (such as cleaning, consumable replacement, and troubleshooting), operators need to frequently open and close the covers or doors of these chambers. Thus, the ease, reliability, and safety of cover opening and closing operations directly affect the equipment's operating efficiency, maintenance costs, and the occupational health and safety of operators. For medium to large-sized equipment covers or those requiring pressure / vacuum loads (often called "heavy-duty covers"), the industry commonly uses automatic cover opening devices to achieve cover opening and closing.

[0003] However, in actual use, this system that relies on automatic lid opening has significant drawbacks and limitations, such as limited operational flexibility: automatic lid opening usually has preset travel and speed, making it difficult to make flexible and precise manual intervention according to the actual situation on site (such as limited space or need for fine-tuning the position); therefore, this utility model proposes a heavy-duty manual lid-opening mechanism as a further improvement, so as to respond quickly through manual operation according to the actual situation on site. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a heavy-duty manual flip-top mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty manual flip-top mechanism, comprising: a housing assembly and a flip-top arm for connecting a heavy-duty cover plate;

[0006] The housing assembly includes: a support housing serving as a support point and a rotating wheel for applying the flip-top power. The support housing is rotatably connected to a rotating shaft, and both ends of the rotating shaft extend from both sides of the support housing. The end of the rotating shaft is fixedly connected to one end of the flip-top arm. A transmission mechanism is provided between the rotating wheel and the rotating shaft.

[0007] The flip arm has a pin connecting block fixedly installed inside at the end away from the rotation axis for connecting with the heavy-duty cover plate.

[0008] Furthermore, the transmission mechanism includes: a primary reduction gear assembly, a secondary reduction gear assembly, and a tertiary reduction gear assembly;

[0009] The first-stage reduction assembly includes: a worm, a worm wheel, and a first transmission shaft rotatably connected to the inner wall of the bearing housing. The middle part of the rotating wheel is fixedly connected to one end of the worm, and the other end of the worm passes through the interior of the bearing housing. The worm wheel is fixedly installed on the first transmission shaft, and the worm located inside the bearing housing meshes with the worm wheel.

[0010] The secondary reduction assembly includes: a second drive shaft rotatably connected to the inner wall of the bearing housing, a first drive gear and a second drive gear, the first drive gear and the second drive gear being fixedly sleeved on the first drive shaft and the second drive shaft respectively, and the first drive gear meshing with the second drive gear.

[0011] The three-stage reduction assembly includes a third transmission gear and a fourth transmission gear, which are respectively fixedly sleeved on the second transmission shaft and the rotating shaft, and the third transmission gear and the fourth transmission gear are meshed together.

[0012] Furthermore, the worm gear is rotatably connected to the bearing housing via an angular contact bearing.

[0013] Furthermore, the angular contact bearing, located away from the rotating wheel and at the end of the worm gear, is fixedly connected to the bearing housing via a locating cover plate.

[0014] Furthermore, the supporting housing includes: a left housing and a right housing;

[0015] The left and right housings are detachably connected; both ends of the first drive shaft are rotatably connected to the left and right housings respectively via bearings; both ends of the second drive shaft are rotatably connected to the left and right housings respectively via bearings; the rotating shaft is rotatably connected to the left and right housings respectively via bearings.

[0016] Furthermore, a side cover plate is fixedly installed on the outer side of the left housing, and the first drive shaft, the second drive shaft and the rotating shaft are all rotatably connected to the side cover plate, with the rotating shaft passing through the side cover plate.

[0017] Furthermore, spacers are fixedly installed on the first drive shaft, the second drive shaft, and the rotating shaft.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. Compared with existing technologies, by setting up a housing assembly and a flip-top arm, it is possible to manually control the flip-top of a heavy-duty cover. While ensuring that the usage requirements are met, the existing flip-top structure is simplified, reducing the complexity of the entire device. When frequently opening the cover for work or maintenance, the flip-top operation is simplified, and the control flexibility and safety are improved, making it suitable for this field.

[0020] 2. Compared with existing technologies, by setting up a transmission mechanism and using multi-stage reduction transmission of worm gears and related gears, not only is it labor-saving due to the large transmission ratio, but manual operation is also safer, more convenient and faster through mechanical control; it can easily realize the flipping of heavy-duty cover plates and achieve opening and closing at any position from 0-90°; therefore, it has high practicality. Attached Figure Description

[0021] Figure 1 This is an exploded view of the present invention.

[0022] Figure 2 This is a partial structural schematic diagram of the transmission mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the bearing shell of this utility model.

[0024] Figure 4 This is a side view of the box assembly and flip arm of this utility model to realize the heavy-duty flip-up of the cover plate.

[0025] Figure 5 This is a top view schematic diagram of the box assembly and flip arm of this utility model to realize the heavy-duty cover flipping.

[0026] The attached figures are labeled as follows:

[0027] 1000, Housing assembly; 1100, Load-bearing housing; 1110, Left housing; 1111, Side cover; 1120, Right housing; 1200, Rotating wheel; 1300, Rotating shaft;

[0028] 1400. Transmission mechanism;

[0029] 1410. First-stage reduction gear assembly; 1411. Worm gear; 1412. Worm wheel; 1413. First drive shaft; 1414. Angular contact bearing; 1415. Positioning cover plate;

[0030] 1420. Second-stage reduction gear assembly; 1421. Second drive shaft; 1422. First drive gear; 1423. Second drive gear;

[0031] 1430. Three-stage reduction gear assembly; 1431. Third transmission gear; 1432. Fourth transmission gear;

[0032] 1500, spacer; 2000, flip arm; 2100, pin connector. Detailed Implementation

[0033] 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.

[0034] As attached Figure 1-5 The heavy-duty manual flip-top mechanism shown includes: a housing assembly 1000 and a flip-top arm 2000 for connecting a heavy-duty cover plate;

[0035] The housing assembly 1000 includes: a support housing 1100 serving as a support point and a rotating wheel 1200 for applying the power to flip the cover. For example, the bottom of the support housing 1100 is fixed to the equipment so that the support housing 1100 provides a support fulcrum, and a handwheel is used as the rotating wheel 1200. A rotating shaft 1300 is rotatably connected inside the support housing 1100, and the two ends of the rotating shaft 1300 extend from both sides of the support housing 1100 respectively. The end of the rotating shaft 1300 is fixedly connected to one end of the flip arm 2000. For example, the rotating shaft 1300 is radially positioned with the flip arm 2000 by a flat key, and the rotating shaft 1300 is axially positioned and fixed with the flip arm 2000 by a step and a locking bolt.

[0036] A transmission mechanism 1400 is provided between the rotating wheel 1200 and the rotating shaft 1300;

[0037] The flip arm 2000, located away from the rotating shaft 1300, has a fixedly installed pin connecting block 2100 for connecting with a heavy-duty cover plate. For example, the pin connecting block 2100 is connected to the flip arm 2000 via a positioning pin. The pin connecting block 2100 then connects to the heavy-duty cover plate, enabling the heavy-duty cover plate to connect to the housing assembly 1000 via the flip arm 2000. The transmission mechanism 1400 reduces speed and increases torque; for example, the transmission ratio of the transmission mechanism 1400 is set to 250:1. This allows for easy flipping and improves operational flexibility. There is no need to preset the flipping stroke and speed; flexible and precise manual intervention is possible based on actual site conditions, such as limited space or the need for fine-tuning the position. This ensures ease, flexibility, and safety of operation during frequent opening and closing operations or maintenance.

[0038] For example, the volume of the bearing housing 1100 is 120mm wide, 190mm long, and 200mm high; the height of the rotating wheel 1200 is 240mm; and the shortest distance between the farthest end of the flip arm 2000 and the box assembly 1000 is 220mm. Compared with common devices for controlling heavy-duty covers, it is smaller in size and occupies less space.

[0039] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the transmission mechanism 1400 includes: a first-stage reduction assembly 1410, a second-stage reduction assembly 1420, and a third-stage reduction assembly 1430;

[0040] The first-stage reduction assembly 1410 includes a worm gear 1411, a worm wheel 1412, and a first transmission shaft 1413 rotatably connected to the inner wall of the bearing housing 1100. The middle part of the rotating wheel 1200 is fixedly connected to one end of the worm gear 1411. For example, the upper end of the worm gear 1411 is connected to the rotating wheel 1200 via a flat key to achieve circumferential fixation between the two. The other end of the worm gear 1411 is inserted into the interior of the bearing housing 1100, and the worm wheel 1412 is fixedly mounted on the first transmission shaft 1413. For example, one end of the worm wheel 1412 is fixedly mounted on the first transmission shaft 1413. The surface is fixed by a positioning step, and the radial direction is positioned by a flat key. The other end of the worm gear 1412 is fixedly mounted on the first transmission shaft 1413 by a locking nut. The two ends of the first transmission shaft 1413 are connected to deep groove ball bearings and finally fixed. The worm 1411 located inside the bearing housing 1100 is meshed with the worm gear 1412. For example, the worm gears 1412 with the same module are connected to adjacent positions on the worm 1411, and the transmission ratio between the worm 1411 and the worm gear 1412 is set to 40:1. The meshing of the worm 1411 and the worm gear 1412, and their reverse self-locking property, prevent the worm gear 1412 from driving the worm 1411, ensuring that the cover will not rotate automatically. When the heavy-duty cover needs to be opened, the rotating wheel 1200 rotates the worm 1411 to drive the entire transmission mechanism 1400, ultimately realizing the opening and closing of the heavy-duty cover at any position from 0 to 90 degrees.

[0041] The secondary reduction gear assembly 1420 includes: a second drive shaft 1421 rotatably connected to the inner wall of the bearing housing 1100, a first drive gear 1422, and a second drive gear 1423. The first drive gear 1422 and the second drive gear 1423 are respectively fixedly sleeved on the first drive shaft 1413 and the second drive shaft 1421, and the first drive gear 1422 and the second drive gear 1423 are meshed together. The number of teeth of the first drive gear 1422 is less than the number of teeth of the second drive gear 1423 in order to achieve speed reduction in this part of the transmission. The transmission ratio of the first drive gear 1422 to the second drive gear 1423 is set to 2.5:1.

[0042] The three-stage reduction assembly 1430 includes a third transmission gear 1431 and a fourth transmission gear 1432, which are respectively fixedly sleeved on the second transmission shaft 1421 and the rotating shaft 1300. The third transmission gear 1431 and the fourth transmission gear 1432 are meshed together. The number of teeth of the third transmission gear 1431 is less than the number of teeth of the fourth transmission gear 1432 to achieve speed reduction in this part of the transmission. The transmission ratio between the third transmission gear 1431 and the fourth transmission gear 1432 is set to 2.5:1.

[0043] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the worm gear 1411 is rotatably connected to the bearing housing 1100 via an angular contact bearing 1414; wherein, the worm gear 1411 is connected to a stepped hole for positioning on the housing assembly 1000 via the angular contact bearing 1414.

[0044] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the angular contact bearing 1414, which is located away from the rotating wheel 1200 and at the end of the worm 1411, is fixedly connected to the bearing housing 1100 through the positioning cover plate 1415; wherein, the positioning cover plate 1415 is used to position and fix the outer ring of the angular contact bearing 1414 at the end of the worm 1411.

[0045] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the supporting housing 1100 includes: a left housing 1110 and a right housing 1120;

[0046] The left housing 1110 and the right housing 1120 are detachably connected; for example, after the left housing 1110 and the right housing 1120 are positioned by pins, they are locked and fixed by bolts.

[0047] Both ends of the first drive shaft 1413 are rotatably connected to the left housing 1110 and the right housing 1120 respectively via bearings; for example, deep groove ball bearings fixed on the left housing 1110 and the right housing 1120 are rotatably connected to both ends of the first drive shaft 1413; both ends of the second drive shaft 1421 are rotatably connected to the left housing 1110 and the right housing 1120 respectively via bearings; the rotating shaft 1300 is rotatably connected to the left housing 1110 and the right housing 1120 respectively via bearings.

[0048] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, a side cover plate 1111 is fixedly installed on the outer side of the left housing 1110. The first drive shaft 1413, the second drive shaft 1421 and the rotating shaft 1300 are all rotatably connected to the side cover plate 1111. The rotating shaft 1300 passes through the side cover plate 1111.

[0049] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, spacers 1500 are fixedly installed on the first drive shaft 1413, the second drive shaft 1421, and the rotating shaft 1300; wherein, the spacer 1500 on the first drive shaft 1413 is used to position the first drive gear 1422; the spacer 1500 on the second drive shaft 1421 is used to position the second drive gear 1423 and the third drive gear 1431; and the spacer 1500 on the rotating shaft 1300 is used to position the fourth drive gear 1432.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty manual flip-top mechanism, characterized in that: include: Box assembly (1000) and flip arm (2000) for connecting heavy-duty cover plate. The housing assembly (1000) includes: a support housing (1100) serving as a support point and a rotating wheel (1200) for applying the flip-top power. A rotating shaft (1300) is rotatably connected inside the support housing (1100), and both ends of the rotating shaft (1300) extend from both sides of the support housing (1100). The end of the rotating shaft (1300) is fixedly connected to one end of the flip-top arm (2000). A transmission mechanism (1400) is provided between the rotating wheel (1200) and the rotating shaft (1300). The flip arm (2000) has a pin connecting block (2100) fixedly installed inside at the end away from the rotation axis (1300) for connecting with the heavy-duty cover plate.

2. The heavy-duty manual flip-top mechanism according to claim 1, characterized in that: The transmission mechanism (1400) includes: a first-stage reduction assembly (1410), a second-stage reduction assembly (1420), and a third-stage reduction assembly (1430). The first-stage reduction assembly (1410) includes: a worm (1411), a worm wheel (1412), and a first transmission shaft (1413) rotatably connected to the inner wall of the bearing housing (1100). The middle part of the rotating wheel (1200) is fixedly connected to one end of the worm (1411), and the other end of the worm (1411) is inserted into the interior of the bearing housing (1100). The worm wheel (1412) is fixedly installed on the first transmission shaft (1413), and the worm (1411) located inside the bearing housing (1100) is meshed with the worm wheel (1412). The secondary reduction assembly (1420) includes: a second drive shaft (1421) rotatably connected to the inner wall of the bearing housing (1100), a first drive gear (1422) and a second drive gear (1423), the first drive gear (1422) and the second drive gear (1423) being fixedly sleeved on the first drive shaft (1413) and the second drive shaft (1421) respectively, and the first drive gear (1422) and the second drive gear (1423) being meshed together; The three-stage reduction assembly (1430) includes a third transmission gear (1431) and a fourth transmission gear (1432). The third transmission gear (1431) and the fourth transmission gear (1432) are respectively fixedly sleeved on the second transmission shaft (1421) and the rotating shaft (1300). The third transmission gear (1431) and the fourth transmission gear (1432) are meshed and connected.

3. The heavy-duty manual flip-top mechanism according to claim 2, characterized in that: The worm gear (1411) is rotatably connected to the bearing housing (1100) via an angular contact bearing (1414).

4. The heavy-duty manual flip-top mechanism according to claim 3, characterized in that: The angular contact bearing (1414), located away from the rotating wheel (1200) and at the end of the worm (1411), is fixedly connected to the bearing housing (1100) via a positioning cover plate (1415).

5. The heavy-duty manual flip-top mechanism according to claim 2, characterized in that: The supporting housing (1100) includes: a left housing (1110) and a right housing (1120). The left housing (1110) and the right housing (1120) are detachably connected; both ends of the first drive shaft (1413) are rotatably connected to the left housing (1110) and the right housing (1120) respectively via bearings; both ends of the second drive shaft (1421) are rotatably connected to the left housing (1110) and the right housing (1120) respectively via bearings; the rotating shaft (1300) is rotatably connected to the left housing (1110) and the right housing (1120) respectively via bearings.

6. The heavy-duty manual flip-top mechanism according to claim 5, characterized in that: A side cover plate (1111) is fixedly installed on the outside of the left housing (1110). The first drive shaft (1413), the second drive shaft (1421) and the rotating shaft (1300) are all rotatably connected to the side cover plate (1111). The rotating shaft (1300) passes through the side cover plate (1111).

7. A heavy-duty manual flip-top mechanism according to claim 2, characterized in that: Spacers (1500) are fixedly installed on the first drive shaft (1413), the second drive shaft (1421), and the rotating shaft (1300).

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