Multi-manifold rotating device of freeze dryer

Abstract

The utility model relates to the field of rotating devices of freeze dryers, in particular to a multi-manifold rotating device of a freeze dryer, which comprises the following components: an upper end shell, a lower end shell, an upper end shell and a lower end shell, the lower end shell is inserted into the upper end shell, and the tail end of the lower end shell is connected to a cold trap cover plate of the freeze dryer; two butyronitrile star-shaped rings are arranged in the upper end shell, and the butyronitrile star-shaped rings are embedded in the upper part of the interior of the upper end shell and are used for sealing a gap between the upper end shell and the lower end shell; two butyronitrile star-shaped rings are arranged in the upper end shell, embedded in the upper portion of the interior of the upper end shell and used for sealing a gap between the upper end shell and the lower end shell. The sealing performance is improved through the double-layer sealing design, it is ensured that the vacuum environment in the freeze dryer is not affected by the outside world, the bearing is fixed into the upper end shell through the elastic check ring for the shaft and the elastic check ring for the hole, and the stability and stability of rotation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of freeze dryer rotating devices, specifically a freeze dryer multi-manifold rotating device. Background Technology

[0002] Technical Background of Multi-Manifold Rotary Unit in Freeze Dryer

[0003] A freeze dryer is a piece of equipment used in freeze-drying processes, widely applied in pharmaceuticals, food processing, biotechnology, and other fields. During the freeze-drying process, samples need to be taken, observed, and analyzed, requiring the freeze dryer to possess a certain degree of flexibility and ease of operation. This is especially true in multi-manifold freeze dryers, where a rotating mechanism is needed to achieve flexible operation of the manifolds.

[0004] Traditional multi-manifold rotary devices in freeze dryers have the following problems:

[0005] Poor sealing performance:

[0006] Traditional rotary devices, when connecting the multi-manifold unit and the cold trap cover of the freeze dryer, often suffer from poor sealing performance, which can easily disrupt the vacuum environment inside the freeze dryer and affect the freeze-drying effect.

[0007] Insufficient stability:

[0008] Traditional rotating devices, after prolonged use, are prone to loosening due to the lack of effective locking and support structures, leading to unstable rotation or even detachment, which affects operational safety.

[0009] Poor rotational performance:

[0010] Traditional rotating devices often lack a stable rotating mechanism, resulting in a limited rotation angle and an inability to achieve 360-degree free rotation, thus restricting operational flexibility.

[0011] Poor abrasion resistance:

[0012] During long-term use, due to the lack of wear-resistant design, rotating parts are prone to wear, which shortens the equipment's lifespan, requires frequent parts replacement, and increases maintenance costs.

[0013] Inconvenient to operate:

[0014] Traditional rotating devices lack anti-slip design, making it easy for operators to slip during operation, which reduces the safety and convenience of operation. Utility Model Content

[0015] (a) Technical problems to be solved

[0016] To address the shortcomings of existing technologies, this utility model provides a multi-manifold rotating device for a freeze dryer.

[0017] (II) Technical Solution

[0018] To achieve the above objectives, this utility model provides the following technical solution: The multi-manifold rotating device for a freeze dryer of this utility model includes the following components:

[0019] Upper housing: The top of the upper housing is provided with a connection hole, which is used to connect the multi-manifold device of the freeze dryer;

[0020] Lower housing: Inserted into the upper housing, with the end connected to the freeze dryer cold trap cover;

[0021] The upper housing contains:

[0022] Two nitrile star-shaped rings are embedded in the upper part of the upper housing to seal the gap between the upper and lower housings.

[0023] A shaft elastic retaining ring is embedded in the inner center of the upper housing to lock the lower housing and prevent the lower housing from falling out of the upper housing.

[0024] A set of bearings, wherein the bearings are disposed inside the upper housing and the upper end of the bearings is supported by an elastic retaining ring, for rotation between the upper housing and the lower housing.

[0025] Preferably, it further includes a retaining ring for the bore, which is embedded in the end of the upper housing to support the end of the bearing. The bearing is fixed inside the upper housing by the retaining ring for the shaft and the retaining ring for the bore.

[0026] More preferably, the lower housing has a wear-resistant pad on its inner top, which fits against the inner top of the upper housing, and the wear-resistant pad is installed on the top of the lower housing by a bolt structure.

[0027] Preferably, the wear-resistant pad is made of either polytetrafluoroethylene or polyamide.

[0028] Preferably, the wear-resistant pad has a plurality of grooves and is coated with lubricating oil.

[0029] More preferably, the outer wall of the upper housing is fitted with an anti-slip rubber sleeve, and the anti-slip rubber sleeve is provided with anti-slip texture.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the present invention provides a multi-manifold rotating device for a freeze dryer, which has the following beneficial effects:

[0032] Improve sealing performance:

[0033] Double-layer sealing design: Two nitrile star-shaped rings are embedded inside the upper part of the upper housing to seal the gap between the upper and lower housings. This double-layer sealing design improves sealing performance and ensures that the vacuum environment inside the freeze dryer is not affected by external factors.

[0034] Nitrile star rings: Two nitrile star rings can effectively prevent gas leakage and ensure the vacuum sealing performance of the freeze dryer during operation.

[0035] Improve stability:

[0036] Shaft retaining ring: The shaft retaining ring is embedded in the center of the upper housing to lock the lower housing in place, preventing it from falling out of the upper housing. This design improves the stability of the device and ensures that it will not loosen during rotation.

[0037] Bearing fixing design: The upper end of the bearing is supported by a shaft elastic retaining ring, and the lower end of the bearing is supported by a hole elastic retaining ring, so that the bearing is fixed inside the upper housing, ensuring the stability of the bearing and the smoothness of rotation.

[0038] Improve rotational performance:

[0039] 360-degree rotation: The bearing is located inside the upper housing, allowing for 360-degree rotation between the upper and lower housings. This design enables the freeze dryer's manifold unit to rotate freely, facilitating sample collection within the freeze dryer.

[0040] Bearing fixing design: The bearing is fixed inside the upper housing by a shaft elastic retaining ring and a bore elastic retaining ring to ensure smooth and stable rotation.

[0041] Improve wear resistance:

[0042] Wear-resistant pad design: A wear-resistant pad is located on the top of the inner side of the lower housing. The wear-resistant pad is made of polytetrafluoroethylene (PTFE) or polyamide (PA) material, which has excellent wear resistance and corrosion resistance. The wear-resistant pad has several grooves to improve lubrication conditions and reduce wear.

[0043] Lubricating oil coating: The wear-resistant pad is coated with lubricating oil to further reduce wear, extend service life, and ensure long-term stable operation.

[0044] Improve ease of use:

[0045] Anti-slip design: The outer wall of the upper shell is fitted with an anti-slip rubber sleeve with anti-slip texture, which makes it easy for operators to grip and improves the safety and convenience of operation.

[0046] Bolted structure: The wear-resistant pad is installed on the top of the lower housing via a bolted structure, which facilitates disassembly and replacement, and makes maintenance and upkeep convenient.

[0047] Improve maintenance convenience:

[0048] Easy to maintain: The wear-resistant pad is installed on the top of the lower housing via a bolt structure, making it easy to disassemble and replace, and convenient for maintenance. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the assembly structure of the upper and lower shells of this utility model;

[0050] Figure 2 This is a schematic cross-sectional view of the upper and lower shells of this utility model.

[0051] Figure 3 This is a schematic diagram of the wear-resistant pad structure of this utility model;

[0052] In the diagram: 1. Nitrile star ring; 2. Shaft retaining ring; 3. Bearing; 4. Hole retaining ring; 5. Upper housing; 6. Lower housing; 7. Anti-slip rubber sleeve; 8. Connecting hole; 9. Wear-resistant pad; 10. Groove. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Please see Figure 1-3 The multi-manifold rotating device of the freeze dryer of this utility model includes the following components:

[0055] Upper housing 5: The top of the upper housing 5 is provided with a connecting hole 8, which is used to connect the multi-manifold device of the freeze dryer;

[0056] Lower housing 6: Inserted into upper housing 5, with its end connected to the freeze dryer cold trap cover plate;

[0057] The upper housing 5 has the following inside:

[0058] Two nitrile star-shaped rings 1 are embedded in the upper part of the upper housing 5 to seal the gap between the upper housing 5 and the lower housing 6.

[0059] A shaft elastic retaining ring 2 is embedded in the middle of the upper housing 5 to lock the lower housing 6 and prevent the lower housing 6 from falling out of the upper housing 5.

[0060] A set of bearings 3 is disposed inside the upper housing 5, and the upper end of the bearings 3 is supported by an elastic retaining ring for 360-degree rotation between the upper housing 5 and the lower housing 6.

[0061] This utility model provides a multi-manifold rotating device for a freeze dryer. Through optimized structural design, it improves the sealing, stability, and wear resistance of the rotating device, ensuring efficient operation of the freeze dryer. Its working principle is as follows:

[0062] Upper casing 5:

[0063] The top of the upper housing 5 is provided with a connection hole 8, which is used to connect the multi-manifold device of the freeze dryer.

[0064] The upper housing 5 is equipped with two nitrile star rings 1, a shaft elastic retaining ring 2, a set of bearings 3, and a hole elastic retaining ring 4.

[0065] Two nitrile star rings 1:

[0066] Two nitrile star-shaped rings 1 are embedded in the upper part of the upper housing 5 to seal the gap between the upper housing 5 and the lower housing 6, ensuring the vacuum sealing performance of the freeze dryer during operation.

[0067] Shaft elastic retaining ring 2:

[0068] The shaft elastic retaining ring 2 is embedded in the middle of the upper housing 5 to lock the lower housing 6 and prevent the lower housing 6 from falling out of the upper housing 5.

[0069] One set of bearings 3:

[0070] The bearing 3 is located inside the upper housing 5. The upper end of the bearing 3 is supported by the axial elastic retaining ring 2, which is used for 360-degree rotation between the upper housing 5 and the lower housing 6.

[0071] The end of the bearing 3 is supported by an elastic retaining ring 4 through a hole, so that the bearing 3 is fixed inside the upper housing 5.

[0072] Hole elastic retaining ring 4:

[0073] The elastic retaining ring 4 is embedded in the end of the upper housing 5 to support the end of the bearing 3 and ensure the stability of the bearing 3.

[0074] Lower end housing 6:

[0075] The lower housing 6 is inserted into the upper housing 5, and the end is connected to the cold trap cover of the freeze dryer.

[0076] The lower housing 6 has a wear-resistant pad 9 on its inner top. The wear-resistant pad 9 fits into the inner top of the upper housing 5 and is installed on the top of the lower housing 6 by bolts.

[0077] Wear-resistant pad 9:

[0078] The wear-resistant pad 9 is made of polytetrafluoroethylene (PTFE) or polyamide (PA) material, which has excellent wear resistance and corrosion resistance.

[0079] The wear-resistant pad 9 has several grooves 10 to improve lubrication conditions and reduce wear.

[0080] The wear-resistant pad 9 is coated with lubricating oil to further reduce wear and extend service life.

[0081] Anti-slip rubber sleeve 7:

[0082] An anti-slip rubber sleeve 7 is fitted on the outer wall of the upper housing 5. The anti-slip rubber sleeve 7 has anti-slip texture, which makes it easy for operators to grip and improves the safety and convenience of operation.

[0083] Working principles of various preferred technical solutions

[0084] Double-layer sealing design:

[0085] Two nitrile star-shaped rings 1 are embedded in the upper part of the upper housing 5 to seal the gap between the upper housing 5 and the lower housing 6, ensuring the vacuum sealing performance of the freeze dryer during operation.

[0086] The double-sealed design improves sealing performance and ensures that the vacuum environment inside the freeze dryer is not affected by external factors.

[0087] Bearing 3 fixed design:

[0088] The upper end of the bearing 3 is supported by the shaft elastic retaining ring 2, and the lower end of the bearing 3 is supported by the hole elastic retaining ring 4, so that the bearing 3 is fixed inside the upper housing 5.

[0089] The fixed design of bearing 3 ensures the stability and smooth rotation of bearing 3.

[0090] Abrasion-resistant pad design 9:

[0091] The lower housing 6 has a wear-resistant pad 9 on its inner top. The wear-resistant pad 9 is made of polytetrafluoroethylene (PTFE) or polyamide (PA) material, which has excellent wear resistance and corrosion resistance.

[0092] The wear-resistant pad 9 has several grooves 10 to improve lubrication conditions and reduce wear.

[0093] The wear-resistant pad 9 is coated with lubricating oil to further reduce wear and extend service life.

[0094] Anti-slip design:

[0095] An anti-slip rubber sleeve 7 is fitted on the outer wall of the upper housing 5. The anti-slip rubber sleeve 7 has anti-slip texture, which makes it easy for operators to grip and improves the safety and convenience of operation.

[0096] Summarize

[0097] As can be seen from the above description of the working principle, the multi-manifold rotating device for freeze dryers provided by this utility model improves the sealing, stability and wear resistance of the rotating device through optimized structural design, ensuring the efficient operation of the freeze dryer during operation.

[0098] 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 multi-manifold rotating device for a freeze dryer, characterized in that, Includes the following components: Upper housing (5): The top of the upper housing (5) is provided with a connecting hole (8), which is used to connect the multi-manifold device of the freeze dryer; Lower housing (6): Inserted into the upper housing (5), with the end connected to the freeze dryer cold trap cover plate; The upper housing (5) has the following interior: Two nitrile star rings (1) are embedded in the upper part of the upper housing (5) for sealing the gap between the upper housing (5) and the lower housing (6); A shaft elastic retaining ring (2) is embedded in the middle of the upper housing (5) to lock the lower housing (6) and prevent the lower housing (6) from falling out of the upper housing (5); A set of bearings (3) is provided inside the upper housing (5), and the upper end of the bearings (3) is supported by an elastic retaining ring for 360-degree rotation between the upper housing (5) and the lower housing (6).

2. The multi-manifold rotating device for a freeze dryer according to claim 1, characterized in that, It also includes a retaining ring (4) for holes, which is embedded in the end of the upper housing (5) to support the end of the bearing (3), which is fixed inside the upper housing (5) by the retaining ring (2) for shafts and the retaining ring (4) for holes.

3. The multi-manifold rotating device for a freeze dryer according to claim 2, characterized in that, The lower housing (6) has a wear-resistant pad (9) on its inner top. The wear-resistant pad (9) is attached to the inner top of the upper housing (5). The wear-resistant pad (9) is installed on the top of the lower housing (6) by bolts.

4. The multi-manifold rotating device for a freeze dryer according to claim 3, characterized in that, The wear-resistant pad (9) is made of either polytetrafluoroethylene or polyamide.

5. The multi-manifold rotating device for a freeze dryer according to claim 4, characterized in that, The wear-resistant pad (9) has several grooves (10) and is coated with lubricating oil.

6. The multi-manifold rotating device for a freeze dryer according to claim 5, characterized in that, The upper housing (5) is fitted with an anti-slip rubber sleeve (7) on its outer wall, and the anti-slip rubber sleeve (7) has anti-slip texture.

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