Sealing ring of quick door opening device

Abstract

The utility model discloses a sealing ring of a quick door opening device, which is arranged at the edge of the bottom of a cylinder cover and is made of nitrile rubber. The sealing ring is made of nitrile rubber, and the nitrile rubber has the advantages of better heat resistance, corrosion resistance, swelling resistance and the like for waterless dyeing media such as D5-decamethylcyclopentasiloxane, so that the sealing ring is not easy to damage and lose efficacy, reliable sealing is realized in a high-temperature and high-pressure state, the service life of the sealing ring is prolonged, and the service life of the sealing ring is prolonged. The sealing ring of the quick-opening door device is prevented from being frequently replaced, and actual use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of dyeing, in particular to a sealing ring of a quick-opening door device. Background Art

[0002] In the dyeing and finishing industry, a quick-opening device is usually provided on the cylinder of the dyeing machine. The quick-opening device may include a cylinder cover, a cylinder, a connecting arm and other components, and the cylinder and the connecting arm are used to drive the cylinder cover to flip open. Among them, a sealing ring is provided at the bottom edge of the cylinder cover to prevent leakage of the cylinder container pressure. The sealing ring is usually made of silicone rubber or fluororubber.

[0003] However, the above-mentioned existing sealing rings have the following technical problems: with the continuous development of dyeing technology, anhydrous dyeing media (such as D5-decamethylcyclopentasiloxane, etc.) have been used instead of water as the medium for dyeing, and the rubber rings of silicone rubber or fluororubber are easily corroded by dyeing media such as D5-decamethylcyclopentasiloxane, which makes the sealing ring easily damaged and failed, and then causes the sealing ring of the quick opening door device to need to be replaced frequently, which does not meet the actual use requirements. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a sealing ring for a quick door opening device, which can solve the above technical problems.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a sealing ring of a quick-opening door device, the quick-opening door device includes a cylinder cover, a cylinder, a connecting arm, a pin shaft and two connecting plates, the cylinder cover is arranged on the cylinder body of the dyeing machine, the cylinder is vertically arranged on the outer wall of the cylinder body, one end of the connecting arm is connected to the top of the cylinder cover, the two connecting plates are respectively arranged on both sides of the other end of the connecting arm, the pin shaft is arranged on the outer wall of the cylinder body, the lower parts of the two connecting plates are connected to the pin shaft, the telescopic rod of the cylinder is connected to the other end of the connecting arm, the sealing ring is arranged at the bottom edge of the cylinder cover, and the material of the sealing ring is nitrile rubber.

[0008] Preferably, a bottom edge of the cylinder cover is provided with a slot, and the sealing ring is clamped in the slot.

[0009] Preferably, a clamping portion is provided on the upper portion of the sealing ring, the clamping portion is protruding relative to the lower portion of the sealing ring, a groove is formed between the clamping portion and the lower portion of the sealing ring, and the clamping portion is clamped in the clamping groove.

[0010] Preferably, the outer wall of the clamping portion is arc-shaped.

[0011] Preferably, the quick door opening device further comprises a balancing member, which is connected to the upper portion of the connecting plate.

[0012] Preferably, the balancing member is connected to the connecting plate via a connecting shaft.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a sealing ring for a quick-opening door device, which has the following beneficial effects: the sealing ring of the utility model is made of nitrile rubber. Compared with silicone rubber or fluororubber, nitrile rubber has better heat resistance, corrosion resistance, and swelling resistance for dyeing media such as D5-decamethylcyclopentasiloxane, so that the sealing ring is not easy to be damaged or fail, avoiding the need to frequently replace the sealing ring of the quick-opening door device, which meets actual use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the sealing ring of the utility model;

[0016] Figure 2 It is a top view of the sealing ring of the utility model;

[0017] Figure 3 It is a partial structural cutaway diagram of the sealing ring of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the quick door opening device of the utility model.

[0019] The numbers in the figure are: 1 cylinder head, 2 cylinder, 3 connecting arm, 4 pin shaft, 5 connecting plate, 6 cylinder body, 7 sealing ring, 8 clamping part, 9 groove, 10 balance member, 11 connecting shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a sealing ring for a quick-opening door device, which comprises a cylinder cover 1, a cylinder 2, a connecting arm 3, a pin shaft 4 and two connecting plates 5. The cylinder cover 1 is arranged on a cylinder body 6 of a dyeing machine, the cylinder 2 is vertically arranged on the outer wall of the cylinder body 6, one end of the connecting arm 3 is connected to the top of the cylinder cover 1, the two connecting plates 5 are respectively arranged on both sides of the other end of the connecting arm 3, the pin shaft 4 is arranged on the outer wall of the cylinder body 6, the lower parts of the two connecting plates 5 are both connected to the pin shaft 4, the telescopic rod of the cylinder 2 is connected to the other end of the connecting arm 3, and a sealing ring 7 is arranged on the bottom edge of the cylinder cover 1.

[0022] It can be understood that the cylinder cover 1 is a cover arranged on the opening of the cylinder body 6 of the dyeing machine. When the cover needs to be opened, the telescopic rod of the cylinder 2 is retracted, and the connecting plate 5 is further driven to rotate around the pin 4 through the connecting arm 3, that is, the connecting arm 3 drives the cylinder cover 1 and the sealing ring 7 upward away from the opening of the cylinder body 6 to realize the vertical flip opening of the cover. In addition, the side of the cylinder cover 1 can be provided with locking teeth, and the side of the opening of the cylinder body 6 is provided with a locking block. When the cylinder drives the cylinder cover 1 to close, the locking teeth and the locking block are correspondingly matched and locked.

[0023] In the utility model, the material of the sealing ring 7 is nitrile rubber (Nitrile Butadiene Rubber, NBR), which is a copolymer formed by polymerization of acrylonitrile and butadiene monomers, mainly produced by low-temperature emulsion polymerization, with excellent oil resistance, high wear resistance, good heat resistance, strong adhesion, good chemical corrosion resistance, and low cost. The utility model adopts the sealing ring 7 made of nitrile rubber. Compared with silicone rubber or fluororubber, nitrile rubber can improve the corrosion resistance and swelling resistance of the sealing ring 7 to dyeing media such as D5-decamethylcyclopentasiloxane, achieve reliable sealing under high temperature and high pressure conditions, and improve the service life of the sealing ring 7.

[0024] Specifically, a clamping groove is provided at the bottom edge of the cylinder head 1, and the sealing ring 7 is clamped in the clamping groove. Preferably, a clamping portion 8 is provided on the upper part of the sealing ring 7, and the clamping portion 8 is convex relative to the lower part of the sealing ring 7. The outer wall of the clamping portion 8 is in an arc shape, and a groove 9 is formed between the clamping portion 8 and the lower part of the sealing ring 7. The clamping portion 8 is clamped in the clamping groove of the cylinder head 1. By adopting the sealing ring 7 of the above structural form, the connection stability between the sealing ring 7 and the cylinder head 1 can be improved.

[0025] In addition, the above-mentioned quick door opening device may also include a balancing member 10, which is connected to the upper part of the connecting plate 5. The balancing member 10 and the connecting plate 5 can be specifically connected through a connecting shaft 11. The balancing member 10 is used to balance the weight of the cylinder head 1, so that the cylinder head 1 and the balancing member 10 move together around the pin shaft 4.

[0026] Compared with the prior art, the utility model provides a sealing ring for a quick-opening door device, which has the following beneficial effects: the sealing ring of the utility model is made of nitrile rubber. Compared with silicone rubber or fluororubber, nitrile rubber has better heat resistance, corrosion resistance, and swelling resistance for dyeing media such as D5-decamethylcyclopentasiloxane, so that the sealing ring is not easy to be damaged or fail, avoiding the need to frequently replace the sealing ring of the quick-opening door device, which meets actual use requirements.

[0027] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing ring for a quick door opening device, Features: The quick door opening device includes a cylinder cover, a cylinder, a connecting arm, a pin shaft and two connecting plates. The cylinder cover is arranged on the cylinder body of the dyeing machine, and the cylinder is vertically arranged on the outer wall of the cylinder body. One end of the connecting arm is connected to the top of the cylinder cover, and the two connecting plates are respectively arranged on both sides of the other end of the connecting arm. The pin shaft is arranged on the outer wall of the cylinder body, and the lower parts of the two connecting plates are connected to the pin shaft. The telescopic rod of the cylinder is connected to the other end of the connecting arm. The sealing ring is arranged on the bottom edge of the cylinder cover, and the material of the sealing ring is nitrile rubber.

2. The sealing ring of the quick door opening device according to claim 1, Features: A clamping groove is provided on the bottom edge of the cylinder cover, and the sealing ring is clamped in the clamping groove.

3. The sealing ring of the quick door opening device according to claim 2, Features: The upper part of the sealing ring is provided with a clamping part, the clamping part is protruding relative to the lower part of the sealing ring, a groove is formed between the clamping part and the lower part of the sealing ring, and the clamping part is clamped in the clamping groove.

4. The sealing ring of the quick door opening device according to claim 3, Features: The outer wall of the clamping portion is in an arc shape.

5. The sealing ring of the quick door opening device according to claim 1, Features: The quick door opening device also includes a balancing member connected to the upper portion of the connecting plate.

6. The sealing ring of the quick door opening device according to claim 5, Features: The balancing member is connected to the connecting plate via a connecting shaft.

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