Sanitary quick-mounting straight through sight glass

Abstract

The utility model relates to a kind of sanitary quick-mounting straight-through sight glasses, including sight glass, the upper and lower sides of sight glass are respectively arranged with flange, multiple connecting rod assemblies are connected between two flanges, connecting rod assembly includes upper connecting rod, lower connecting rod and locking nut, lower connecting rod upper side is equipped with threaded section, lower connecting rod is sequentially connected with locking nut, upper connecting rod by threaded section, upper connecting rod is equipped with upper support seat, upper connecting rod upper end is equipped with upper nut, lower connecting rod is equipped with lower support seat, lower connecting rod lower end is equipped with lower nut;Locking nut upper side is further connected with sleeve, upper connecting rod is further equipped with size mark, when locking nut and the bottom of threaded section are attached, sleeve upper end is in size mark to read out the distance between upper support seat and lower support seat.

Description

Technical Field

[0001] This utility model relates to the field of flange connections, specifically to a sanitary quick-install straight-through sight glass. Background Technology

[0002] Sanitary straight-through sight glasses are observation components installed on straight pipe sections. They are commonly used in industries such as food, pharmaceuticals, beverages, and bioengineering to directly monitor the flow status, color changes, and impurities of the medium inside the pipeline.

[0003] Most existing sanitary straight-through sight glasses use long bolts, nuts, and flange seats to fix the sight glass, such as the pipe sight glass disclosed in Chinese patent CN219828574U. This design uses multiple long bolts, making it difficult to determine the position of the nuts on each bolt during installation. Repeated verification of the flange seat installation is necessary, and tilted flange installation can affect the sealing quality. Furthermore, the protective layer is difficult to replace. In some applications, sanitary straight-through sight glasses require periodic removal and cleaning to prevent scale buildup that could impair observation. Inexperienced operators during disassembly and reassembly can easily lead to installation difficulties. Utility Model Content

[0004] To solve the above problems, this utility model proposes a sanitary-grade quick-installation straight-through viewing mirror, the specific technical solution of which is as follows:

[0005] A sanitary quick-installation straight-through sight glass includes a sight glass with flanges on its upper and lower sides. The two ends of the sight glass are respectively installed in the corresponding flange grooves via sealing rings. The two flanges are connected by multiple connecting rod assemblies. Each connecting rod assembly includes an upper connecting rod, a lower connecting rod, and a locking nut. The upper side of the lower connecting rod has a threaded section, which connects sequentially to the locking nut and the upper connecting rod. The upper connecting rod has an upper support seat, and its upper end has an upper nut for engaging with the upper support seat and fixing it to the upper flange. The lower connecting rod has a lower support seat, and its lower end has a lower nut for engaging with the lower support seat and fixing it to the lower flange. A sleeve is also connected to the upper side of the locking nut. The upper connecting rod has a size mark. When the locking nut is in contact with the bottom of the threaded section, the upper end of the sleeve is within the size mark, allowing the distance between the upper and lower support seats to be read.

[0006] Furthermore, the upper connecting rod is also equipped with an elastic buckle. When the locking nut is in contact with the lower end face of the upper connecting rod, the elastic buckle can lock the sleeve.

[0007] Furthermore, there are four linkage components arranged in a circular array with the axis of the sight glass as the center line.

[0008] Furthermore, a protective shell is provided outside the viewing glass. The protective shell is made of transparent and flexible material and is cylindrical with longitudinal slits.

[0009] The beneficial effects of this utility model are as follows:

[0010] Based on the height of the sight glass, the size of the flange, and the compression of the sealing ring, the distance between the upper and lower support seats can be clearly adjusted by the fit between the sleeve and the size mark in the connecting rod assembly. This facilitates the assembly of the through sight glass and eliminates the uncertainty of adjustment that relies on skill level during the assembly of traditional through sight glasses. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a perspective view of the sanitary quick-installation straight-through sight glass described in this utility model;

[0013] Figure 2 This is a partial sectional view of the sanitary quick-installation straight-through sight glass described in this utility model;

[0014] Figure 3 This is an exploded view of the connecting rod assembly described in this utility model.

[0015] In the diagram: 1. Flange; 2. Connecting rod assembly; 2.1. Lower connecting rod; 2.2. Lower support seat; 2.3. Upper connecting rod; 2.4. Upper support seat; 2.5. Dimension markings; 2.6. Elastic snap-fit; 2.7. Locking nut; 2.8. Sleeve; 2.9. Threaded section; 3. Protective shell; 4. Sight glass; 5. Sealing ring. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] The present invention provides the following specific embodiments:

[0018] like Figure 1-3 As shown, this utility model provides a sanitary quick-installation straight-through sight glass, including a cylindrical sight glass 4. Flanges 1 are arranged on the upper and lower sides of the sight glass 4, and the flanges 1 are provided with slots for installing the sight glass 4. The upper end of the sight glass 4 is installed in the slot of the upper flange through a sealing ring 5, and the lower end of the sight glass 4 is installed in the slot of the lower flange through a sealing ring 5. The two flanges 1 are connected by multiple connecting rod assemblies 2. The connecting rod assembly 2 includes an upper connecting rod 2.3, a lower connecting rod 2.1, and a locking nut 2.7. The lower connecting rod 2.1 has a threaded section 2.9 on its upper side, and the lower connecting rod 2.1 is connected to the locking nut 2.7 and the upper connecting rod 2.3 in sequence through the threaded section 2.9. The upper connecting rod 2.3 has an upper... The support base 2.4 has an upper nut at the upper end of the upper connecting rod 2.3 for fixing it to the upper flange. The lower connecting rod 2.1 has a lower support base 2.2, and the lower end of the lower connecting rod 2.1 has a lower nut for fixing it to the lower flange. The locking nut 2.7 is also connected to a sleeve 2.8. The upper connecting rod 2.3 is also marked with a dimension mark 2.5, which is used to show the distance between the upper surface of the upper support base 2.4 and the lower surface of the lower support base 2.2. When the locking nut 2.7 is in contact with the bottom of the threaded section 2.9, the upper end of the sleeve 2.8 is within the range of the dimension mark 2.5, thus the distance between the upper support base 2.4 and the lower support base 2.2 can be read at this time.

[0019] Furthermore, the upper connecting rod 2.3 is also provided with an elastic buckle 2.6. When the locking nut 2.7 is in contact with the lower end face of the upper connecting rod 2.3, the elastic buckle 2.6 can apply radial pressure to lock the sleeve 2.8.

[0020] Furthermore, there are four linkage assemblies 2, arranged in a circular array with the axis of the sight glass 4 as the center line.

[0021] Furthermore, a protective shell 3 is provided outside the viewing glass 4. The protective shell 3 is made of a transparent flexible material such as transparent silicone. The protective shell 3 is cylindrical with longitudinal slits. When no external force is applied, the protective shell 3 is cylindrical. When it needs to be removed, the protective shell 3 can be unfolded along the slits by external force.

[0022] During assembly, first, based on the height of the sight glass 4, the compression requirements of the sealing ring 5, and the dimensions of the flange 1, determine the required distance between the upper surface of the upper support 2.4 and the lower surface of the lower support 2.2. Repeat the operation of the four connecting components, ensuring that the locking nut 2.7 is in contact with the bottom of the threaded section 2.9, rotate the lower connecting rod 2.1 so that the upper end of the sleeve 2.8 is at the required distance, rotate the locking nut 2.7 until it is in contact with the upper connecting rod 2.3, and the elastic buckle 2.6 locks the sleeve 2.8. Then, install the four lower nuts and lock the lower flange between the lower nuts and the lower support 2.2. Next, install the sealing rings 5 ​​on both ends of the sight glass 4 and place them into the grooves of the lower flange. Finally, install the four upper nuts and lock the upper flange between the upper nuts and the upper support 2.4, thereby connecting the upper flange, the sight glass 4, and the lower flange.

[0023] Based on the height of the sight glass 4, the size of the flange 1, and the compression requirements of the sealing ring 5, the distance between the upper and lower support seats can be clearly adjusted by the cooperation between the sleeve 2.8 and the size mark 2.5 in the connecting rod assembly 2. This facilitates the assembly of the through sight glass, eliminates the uncertainty of adjustment that relies on skill level during the assembly of traditional through sight glasses, and makes it easier for users to operate and disassemble.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sanitary quick-installation straight-through sight glass, comprising a sight glass, flanges arranged on the upper and lower sides of the sight glass, and both ends of the sight glass respectively installed in the grooves of the corresponding flanges by sealing rings, characterized in that: The two flanges are connected by multiple connecting rod assemblies, which include an upper connecting rod, a lower connecting rod, and a locking nut. The lower connecting rod has a threaded section on its upper side, and it is connected to the locking nut and the upper connecting rod in sequence through the threaded section. The upper connecting rod has an upper support seat, and an upper nut at the upper end of the upper connecting rod for engaging with the upper support seat to fix it to the upper flange. The lower connecting rod has a lower support seat, and a lower nut at the lower end of the lower connecting rod for engaging with the lower support seat to fix it to the lower flange. A sleeve is also connected to the upper side of the locking nut. The upper connecting rod also has a size mark. When the locking nut is in contact with the bottom of the threaded section, the upper end of the sleeve is within the size mark, thus indicating the distance between the upper and lower support seats at this time.

2. The sanitary quick-installation direct-viewing eye according to claim 1, characterized in that: The upper connecting rod is also equipped with an elastic buckle. When the locking nut is in contact with the lower end face of the upper connecting rod, the elastic buckle can lock the sleeve.

3. A sanitary quick-installation direct-viewing scope according to claim 1 or 2, characterized in that: There are four linkage assemblies, arranged in a circular array with the axis of the sight glass as the center line.

4. A sanitary quick-installation direct-viewing eyepiece according to claim 1, characterized in that: The sight glass is also equipped with a protective shell, which is made of transparent flexible material and is cylindrical with longitudinal slits.

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