A milk delivery pipeline anti-freezing heat preservation sleeve
By designing a multi-layered antifreeze insulation jacket, the problem of freezing in milk conveying pipelines under low-temperature conditions was solved, achieving efficient insulation and sealing, and ensuring conveying stability and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUHANG FOOD TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing milk conveying pipelines are prone to freezing in low-temperature environments, leading to blockages and loss of nutrients. Furthermore, the insulation jackets lack sufficient sealing and stability, affecting conveying efficiency and quality.
An antifreeze insulation sleeve was designed, which includes protective sleeves for both bends and straight pipes. It adopts a multi-layer structure and connecting components, combined with sealing rings and adhesive layers, to ensure the insulation and stability of the pipeline, prevent cold air from entering, and facilitate quick installation and maintenance.
It effectively prevents milk conveying pipes from freezing, improves insulation, enhances sealing, ensures conveying stability, facilitates installation and maintenance, reduces heat loss, and protects milk quality.
Smart Images
Figure CN224497985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline insulation technology, specifically an antifreeze insulation sleeve for milk conveying pipelines. Background Technology
[0002] In the milk production and transportation industry, the performance of milk conveying pipelines has a crucial impact on milk quality and transportation efficiency. Especially in low-temperature environments, the milk inside the pipelines is prone to freezing due to the low external temperature. This not only blocks the pipelines and affects the transportation process, but also damages the nutritional components of the milk and reduces its quality.
[0003] Chinese Utility Model Patent Publication No. CN 205504350 U discloses a detachable pipe insulation sleeve. The specification of this detachable pipe insulation sleeve reveals that it consists of two protective sleeves, with a central placement hole. A left connecting plate is located on the left side of the protective sleeve, and a right connecting plate is located on the right side. The buckles on the left connecting plate and the locking holes on the right connecting plate engage to allow the user to easily detach and reattach the device, greatly facilitating its use. An outer shell is provided on the outside of the protective sleeve, and an anti-corrosion layer is provided inside the outer shell, effectively protecting the device. The protective sleeve greatly extends the service life of the device; the flame-retardant and heat-insulating layers inside the protective sleeve can effectively insulate and flame-retard the pipeline, preventing heat loss from the pipeline. However, this detachable pipeline insulation sleeve does not have a sealing structure, which can easily allow cold air from the outside to enter the pipeline insulation sleeve, resulting in poor insulation effect. In addition, the stability of the insulation sleeve connection components and protective components is not good after installation. Under the influence of vibration during long-term use and transportation, they are prone to loosening and falling off. This not only increases the maintenance cost and frequency, but may also affect the normal transportation of milk in the event of a failure, causing production delays and economic losses. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide an antifreeze and heat preservation sleeve for milk conveying pipelines, which can effectively solve the problems in the prior art.
[0005] The technical solution adopted by this utility model is: an antifreeze and heat preservation sleeve for a milk conveying pipeline, including a milk conveying pipeline and a curved pipe protective sleeve and a straight pipe protective sleeve located on the outer surface of the milk conveying pipeline. A curved pipe heat preservation sleeve is sleeved on the outer surface of the curved pipe protective sleeve. An elastic band is provided on the outer surface of the curved pipe heat preservation sleeve. A connecting component is fixedly installed at one end of the curved pipe protective sleeve near the straight pipe protective sleeve. An adhesive component is fixedly installed on the outer surface of the straight pipe protective sleeve. A sealing ring is provided on the side of the connecting component near the straight pipe protective sleeve.
[0006] Preferably, the bend pipe protective sleeve includes a first insulation layer, the end of the bend pipe protective sleeve near the milk conveying pipe is provided with the first insulation layer, the end of the first insulation layer away from the milk conveying pipe is provided with a first heat insulation layer, the end of the first heat insulation layer away from the first insulation layer is provided with a first antistatic layer, and a first slit is provided on the outer surface of the bend pipe protective sleeve.
[0007] The above technical solutions effectively prevent temperature loss in the milk conveying pipeline by setting a first insulation layer, thus avoiding milk spoilage due to cold. The first heat insulation layer reduces heat loss inside the pipeline. The first antistatic layer provides good antistatic protection for the milk conveying pipeline, ensuring a safe working environment. By opening a first slit on the outer surface of the bend protection sleeve, the bend protection sleeve is divided into two identical halves, making it easy to splice and install the bend protection sleeve onto the curved part of the milk conveying pipeline, reducing installation difficulty and improving installation efficiency.
[0008] Preferably, the straight pipe protective sleeve includes a second insulation layer, the end of the straight pipe protective sleeve near the milk conveying pipe is provided with the second insulation layer, the end of the second insulation layer away from the milk conveying pipe is provided with a second heat insulation layer, the end of the second heat insulation layer away from the second insulation layer is provided with a second antistatic layer, and a second slit is provided on the outer surface of the straight pipe protective sleeve.
[0009] The above technical solution, through the second insulation layer, the second heat insulation layer and the second antistatic layer, also protects the insulation effect of the straight section of the milk conveying pipeline, ensures the stability of the milk conveying pipeline, and prevents heat loss from causing milk spoilage. The second cut on the outer surface of the straight pipe protective sleeve makes it easy to wrap the straight pipe protective sleeve around the straight milk conveying pipeline, improving installation efficiency.
[0010] Preferably, the connecting assembly includes a first connecting ring, and a first connecting ring and a second connecting ring are fixedly installed at one end of the bent pipe protective sleeve near the straight pipe protective sleeve. A connecting post is fixedly installed at one end of the first connecting ring near the second connecting ring. A positioning hole is provided at one end of the second connecting ring near the first connecting ring. A locking bolt is provided on the side of the first connecting ring away from the second connecting ring. A locking nut that is threadedly connected to the locking bolt is provided on the side of the second connecting ring away from the first connecting ring. Grooves are provided on the inner surfaces of the first and second connecting rings.
[0011] The above technical solution incorporates a connecting component to facilitate the connection between the bend pipe protective sleeve and the straight pipe protective sleeve, ensuring the insulation effect of the milk conveying pipeline and reducing heat loss.
[0012] Preferably, the connecting post and the positioning hole have the same cross-section, the connecting post and the positioning hole are plug-in installed, and there are two identical sets of locking bolts and locking nuts. The two sets of locking bolts and locking nuts are symmetrically distributed on the center line of the straight pipe protective sleeve. The first connecting ring and the second connecting ring are fixedly connected by locking bolts and locking nuts.
[0013] The above technical solution, with its plug-in installation design of the connecting post and positioning hole, facilitates the initial installation of the first and second connecting rings. Subsequently, the connection strength of the first and second connecting rings is further enhanced by two sets of locking bolts and locking nuts.
[0014] Preferably, the outer diameter of the straight pipe protective sleeve is the same as the inner diameter of the connecting assembly, the sealing ring can be inserted into the groove, and three identical sets of sealing rings are provided. The three sets of sealing rings are located in the first connecting ring and the second connecting ring and are distributed at equal intervals. The first connecting ring is fixedly installed on one half of the bent pipe protective sleeve, and the second connecting ring is fixedly installed on the other half of the bent pipe protective sleeve.
[0015] The above technical solution ensures a tight fit between the straight pipe protective sleeve and the connecting component by setting the outer diameter of the straight pipe protective sleeve to be the same as the inner diameter of the connecting component. This, combined with the sealing ring being inserted into the groove, forms a multi-layered seal, improving the sealing performance of both the curved pipe protective sleeve and the straight pipe protective sleeve. This effectively prevents cold air from entering and enhances the antifreeze effect of the insulation sleeve. The first connecting ring is fixedly installed on one half of the curved pipe protective sleeve, and the second connecting ring is fixedly installed on the other half. This, along with the insertion of the connecting post and positioning hole in the connecting component, facilitates the quick assembly and installation of the curved pipe protective sleeve. Furthermore, the curved pipe insulation sleeve prevents heat loss through the first incision.
[0016] Preferably, the adhesive assembly includes a fixing connection layer, the outer surface of the straight tube protective sleeve is fixedly installed with the fixing connection layer and the hook and loop layer, the outer surface of the fixing connection layer is fixedly installed with a buckle, the side of the fixing connection layer near the hook and loop layer is provided with a connecting metal ring, and the side of the hook and loop layer away from the straight tube protective sleeve is adhesively installed with an adhesive layer that is slidably connected to the connecting metal ring.
[0017] The above technical solution achieves rapid fixation of the outer surface of the straight pipe protective sleeve by bonding the Velcro layer and the adhesive layer, and by using the adhesive layer and the connecting metal ring for auxiliary fixation. This facilitates the detachable installation of the straight pipe protective sleeve, makes it easier to inspect, maintain and replace the insulation sleeve later, and enhances the tightness of the fit between the straight pipe protective sleeve and the milk conveying pipeline, thereby improving the insulation effect.
[0018] Compared with the prior art, this utility model provides an antifreeze and heat-insulating sleeve for milk conveying pipelines, which has the following beneficial effects:
[0019] 1. The antifreeze insulation sleeve of the milk conveying pipeline is designed so that the outer diameter of the straight pipe protective sleeve is the same as the inner diameter of the connecting component, which ensures that the straight pipe protective sleeve and the connecting component fit tightly. In addition, the sealing ring is inserted into the groove to form a multi-layer seal, which improves the sealing performance of the curved pipe protective sleeve and the straight pipe protective sleeve, effectively prevents cold air from entering, and improves the antifreeze effect of the insulation sleeve.
[0020] 2. The antifreeze insulation sleeve of the milk conveying pipeline is fixedly installed by the first connecting ring to one half of the bend protective sleeve and the second connecting ring to the other half of the bend protective sleeve. With the insertion of the connecting post and the positioning hole in the connecting assembly, the bend protective sleeve can be quickly spliced and installed. The adhesive connection between the Velcro layer and the adhesive layer and the auxiliary fixation between the adhesive layer and the connecting metal ring can quickly fix the outer surface of the straight pipe protective sleeve, which facilitates the detachable installation of the straight pipe protective sleeve and facilitates the later inspection, maintenance and replacement of the insulation sleeve. At the same time, it enhances the tightness of the fit between the straight pipe protective sleeve and the milk conveying pipeline, thereby improving the insulation effect.
[0021] 2. The antifreeze insulation sleeve for the milk conveying pipeline, through the use of curved pipe protective sleeves and straight pipe protective sleeves, can prevent freezing and insulate both the curved and straight sections of the milk conveying pipeline, thereby improving the practicality of the insulation sleeve. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0024] Figure 3 This is a schematic diagram showing the disassembled structure of the bend pipe protective sleeve and connecting assembly of this utility model;
[0025] Figure 4 This is a front view structural diagram of the bend pipe protective sleeve of this utility model;
[0026] Figure 5 This is a schematic diagram of the installation structure of the sealing ring and connecting assembly of this utility model;
[0027] Figure 6 This is a schematic diagram of the connection between the straight pipe protective sleeve and the connecting assembly of this utility model;
[0028] Figure 7 This is a three-dimensional structural diagram of the straight pipe protective sleeve of this utility model;
[0029] Figure 8 This is a three-dimensional structural diagram of the adhesive component of this utility model.
[0030] The components include: 1. Milk conveying pipe; 2. Bend protective sleeve; 201. First insulation layer; 202. First heat insulation layer; 203. First antistatic layer; 204. First cut; 3. Straight pipe protective sleeve; 301. Second insulation layer; 302. Second heat insulation layer; 303. Second antistatic layer; 304. Second cut; 4. Bend insulation sleeve; 5. Elastic band; 6. Connecting assembly; 601. First connecting ring; 602. Second connecting ring; 603. Connecting post; 604. Positioning hole; 605. Locking bolt; 606. Locking nut; 607. Groove; 7. Adhesive assembly; 701. Fixed connection layer; 702. Lock; 703. Connecting metal ring; 704. Velcro layer; 705. Adhesive layer; 8. Sealing ring. Detailed Implementation
[0031] 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.
[0032] Example 1: As Figures 1-8 As shown, the present invention provides an antifreeze and heat preservation sleeve for a milk conveying pipeline, including a milk conveying pipeline 1 and a curved pipe protective sleeve 2 and a straight pipe protective sleeve 3 located on the outer surface of the milk conveying pipeline 1. A curved pipe heat preservation sleeve 4 is sleeved on the outer surface of the curved pipe protective sleeve 2. An elastic band 5 is provided on the outer surface of the curved pipe heat preservation sleeve 4. A connecting component 6 is fixedly installed at one end of the curved pipe protective sleeve 2 near the straight pipe protective sleeve 3. An adhesive component 7 is fixedly installed on the outer surface of the straight pipe protective sleeve 3. A sealing ring 8 is provided on the side of the connecting component 6 near the straight pipe protective sleeve 3.
[0033] Specifically, the bend-end protective sleeve 2 includes a first insulation layer 201. The first insulation layer 201 is located at the end of the bend-end protective sleeve 2 closest to the milk conveying pipe 1. A first heat insulation layer 202 is located at the end of the first insulation layer 201 furthest from the milk conveying pipe 1. A first antistatic layer 203 is located at the end of the first heat insulation layer 202 furthest from the first insulation layer 201. A first slit 204 is provided on the outer surface of the bend-end protective sleeve 2. The advantages are: the first insulation layer 201 effectively prevents temperature loss from the milk conveying pipe 1, avoiding milk spoilage due to cold; the first heat insulation layer 202 reduces heat loss inside the pipe; the first antistatic layer 203 provides good antistatic protection for the milk conveying pipe 1, ensuring a safe working environment; and the first slit 204 on the outer surface of the bend-end protective sleeve 2 divides it into two identical halves, facilitating its splicing and installation on the bend of the milk conveying pipe 1, reducing installation difficulty and improving installation efficiency.
[0034] Specifically, the straight pipe protective sleeve 3 includes a second insulation layer 301. The second insulation layer 301 is located at the end of the straight pipe protective sleeve 3 closest to the milk conveying pipe 1. A second heat insulation layer 302 is located at the end of the second insulation layer 301 furthest from the milk conveying pipe 1. A second antistatic layer 303 is located at the end of the second heat insulation layer 302 furthest from the second insulation layer 301. A second cutout 304 is provided on the outer surface of the straight pipe protective sleeve 3. The advantages are that the second insulation layer 301, the second heat insulation layer 302, and the second antistatic layer 303 simultaneously protect the insulation effect of the straight section of the milk conveying pipe 1, ensuring the stability of the milk conveying pipe 1 and preventing heat loss that could lead to milk spoilage. The second cutout 304 on the outer surface of the straight pipe protective sleeve 3 facilitates wrapping the straight pipe protective sleeve 3 around the straight-shaped milk conveying pipe 1, improving installation efficiency.
[0035] Specifically, the connecting component 6 includes a first connecting ring 601. A first connecting ring 601 and a second connecting ring 602 are fixedly installed at one end of the bent pipe protective sleeve 2 near the straight pipe protective sleeve 3. A connecting post 603 is fixedly installed at the end of the first connecting ring 601 near the second connecting ring 602. A positioning hole 604 is provided at the end of the second connecting ring 602 near the first connecting ring 601. A locking bolt 605 is provided on the side of the first connecting ring 601 away from the second connecting ring 602. A locking nut 606, threadedly connected to the locking bolt 605, is provided on the side of the second connecting ring 602 away from the first connecting ring 601. Grooves 607 are provided on the inner surfaces of the first connecting ring 601 and the second connecting ring 602. The advantage is that the connecting component 6 facilitates the connection between the bent pipe protective sleeve 2 and the straight pipe protective sleeve 3, ensuring the insulation effect of the milk conveying pipeline 1 and reducing heat loss.
[0036] Example 2: Figures 2-8As shown, this is an improvement on the previous embodiment.
[0037] Specifically, the connecting post 603 and the positioning hole 604 have the same cross-section and are installed by insertion. Two identical sets of locking bolts 605 and locking nuts 606 are provided, symmetrically distributed along the centerline of the straight pipe protective sleeve 3. The first connecting ring 601 and the second connecting ring 602 are fixedly connected by locking bolts 605 and locking nuts 606. The advantage is that the insertion-fit design of the connecting post 603 and the positioning hole 604 facilitates the initial installation of the first connecting ring 601 and the second connecting ring 602. Subsequently, the two sets of locking bolts 605 and locking nuts 606 further strengthen the connection between the first connecting ring 601 and the second connecting ring 602.
[0038] Specifically, the outer diameter of the straight pipe protective sleeve 3 is the same as the inner diameter of the connecting component 6. The sealing ring 8 can be inserted into the groove 607. There are three identical sets of sealing rings 8. The three sets of sealing rings 8 are located in the first connecting ring 601 and the second connecting ring 602 and are distributed at equal intervals. The first connecting ring 601 is fixedly installed with one half of the bent pipe protective sleeve 2, and the second connecting ring 602 is fixedly installed with the other half of the bent pipe protective sleeve 2. The advantages are that by setting the outer diameter of the straight pipe protective sleeve 3 to be the same as the inner diameter of the connecting component 6, the straight pipe protective sleeve 3 and the connecting component 6 are ensured to fit tightly. In addition, the sealing ring 8 is inserted into the groove 607 to form a multi-layer seal, which improves the sealing performance of the bent pipe protective sleeve 2 and the straight pipe protective sleeve 3, effectively prevents cold air from entering, and improves the antifreeze effect of the insulation sleeve. The first connecting ring 601 is fixedly installed with one half of the bent pipe protective sleeve 2 and the second connecting ring 602 is fixedly installed with the other half of the bent pipe protective sleeve 2. In conjunction with the insertion of the connecting post 603 and the positioning hole 604 in the connecting component 6, the bent pipe protective sleeve 2 can be quickly spliced and installed. The bent pipe insulation sleeve 4 prevents the heat inside the bent pipe protective sleeve 2 from being lost through the first cut 204.
[0039] Specifically, the adhesive component 7 includes a fixing connection layer 701. The fixing connection layer 701 and a Velcro layer 704 are fixedly installed on the outer surface of the straight pipe protective sleeve 3. A latch 702 is fixedly installed on the outer surface of the fixing connection layer 701. A connecting metal ring 703 is provided on the side of the fixing connection layer 701 near the Velcro layer 704. An adhesive layer 705, which is slidably connected to the connecting metal ring 703, is adhesively installed on the side of the Velcro layer 704 away from the straight pipe protective sleeve 3. The advantage is that the adhesive connection between the Velcro layer 704 and the adhesive layer 705, and the auxiliary fixing between the adhesive layer 705 and the connecting metal ring 703, enables rapid fixing of the outer surface of the straight pipe protective sleeve 3. This facilitates the detachable installation of the straight pipe protective sleeve 3, and makes it easier to inspect, maintain, and replace the insulation sleeve later. It also enhances the tightness of the fit between the straight pipe protective sleeve 3 and the milk conveying pipe 1, thereby improving the insulation effect.
[0040] Working principle: During use, the operator installs the two halves of the bent pipe protective sleeve 2 by inserting the connecting post 603 on the first connecting ring 601 and the second connecting ring 602 into the positioning hole 604, facilitating quick splicing and installation of the bent pipe protective sleeve 2. A bent pipe insulation sleeve 4 is then fitted onto the outer surface of the bent pipe protective sleeve 2 to prevent heat loss through the first cut 204. Subsequently, by setting the outer diameter of the straight pipe protective sleeve 3 to be the same as the inner diameter of the connecting component 6, a tight fit between the straight pipe protective sleeve 3 and the connecting component 6 is ensured. The sealing ring 8 is then inserted into the groove 607, forming a multi-layer seal, improving the sealing performance of the bent pipe protective sleeve 2 and the straight pipe protective sleeve 3, effectively preventing the entry of cold air from the outside, and improving the antifreeze effect of the insulation sleeve. The connection is achieved through the bonding of the Velcro layer 704 and the adhesive layer 705. 5. The auxiliary fixing with the connecting metal ring 703 enables quick fixing of the outer surface of the straight pipe protective sleeve 3, facilitating the detachable installation of the straight pipe protective sleeve 3 and making it easier to inspect, maintain and replace the insulation sleeve later. At the same time, it enhances the tightness of the fit between the straight pipe protective sleeve 3 and the milk conveying pipeline 1, thereby improving the insulation effect. The first insulation layer 201 and the second insulation layer 301 can effectively block the transmission of low external temperature to the milk conveying pipeline 1, reducing the rate at which heat is lost from the milk in the pipeline to the outside. The first heat insulation layer 202 and the second heat insulation layer 302 further enhance the heat insulation effect, reduce heat conduction, maintain a suitable temperature environment in the pipeline, and prevent the milk from freezing or deteriorating due to excessively low temperature. The first antistatic layer 203 and the second antistatic layer 303 can provide good antistatic protection for the milk conveying pipeline 1.
[0041] 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 frost-proof and heat-insulating sleeve for a milk conveying pipeline, comprising a milk conveying pipeline (1) and a curved protective sleeve (2) and a straight protective sleeve (3) located on the outer surface of the milk conveying pipeline (1), characterized in that: The outer surface of the bent pipe protective sleeve (2) is fitted with a bent pipe insulation sleeve (4), and the outer surface of the bent pipe insulation sleeve (4) is provided with an elastic band (5). A connecting component (6) is fixedly installed at one end of the bent pipe protective sleeve (2) near the straight pipe protective sleeve (3). An adhesive component (7) is fixedly installed on the outer surface of the straight pipe protective sleeve (3). A sealing ring (8) is provided on the side of the connecting component (6) near the straight pipe protective sleeve (3).
2. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 1, characterized in that: The bend pipe protective sleeve (2) includes a first insulation layer (201). The bend pipe protective sleeve (2) is provided with a first insulation layer (201) at one end close to the milk conveying pipe (1), a first heat insulation layer (202) at one end away from the milk conveying pipe (1), and a first antistatic layer (203) at one end away from the first heat insulation layer (201). A first cut (204) is provided on the outer surface of the bend pipe protective sleeve (2).
3. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 1, characterized in that: The straight pipe protective sleeve (3) includes a second insulation layer (301). The end of the straight pipe protective sleeve (3) near the milk conveying pipe (1) is provided with the second insulation layer (301). The end of the second insulation layer (301) away from the milk conveying pipe (1) is provided with a second heat insulation layer (302). The end of the second heat insulation layer (302) away from the second insulation layer (301) is provided with a second antistatic layer (303). The outer surface of the straight pipe protective sleeve (3) is provided with a second cut (304).
4. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 1, characterized in that: The connecting assembly (6) includes a first connecting ring (601). The first connecting ring (601) and the second connecting ring (602) are fixedly installed at one end of the bend pipe protective sleeve (2) near the straight pipe protective sleeve (3). A connecting post (603) is fixedly installed at one end of the first connecting ring (601) near the second connecting ring (602). A positioning hole (604) is provided at one end of the second connecting ring (602) near the first connecting ring (601). A locking bolt (605) is provided on the side of the first connecting ring (601) away from the second connecting ring (602). A locking nut (606) that is threadedly connected to the locking bolt (605) is provided on the side of the second connecting ring (602) away from the first connecting ring (601). A groove (607) is provided on the inner surface of the first connecting ring (601) and the second connecting ring (602).
5. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 4, characterized in that: The connecting post (603) and the positioning hole (604) have the same cross-section. The connecting post (603) and the positioning hole (604) are plug-in installed. The locking bolt (605) and the locking nut (606) are provided in two identical sets. The two sets of locking bolts (605) and locking nuts (606) are symmetrically distributed on the center line of the straight pipe protective sleeve (3). The first connecting ring (601) and the second connecting ring (602) are fixedly connected by locking bolts (605) and locking nuts (606).
6. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 1, characterized in that: The outer diameter of the straight pipe protective sleeve (3) is the same as the inner diameter of the connecting component (6). The sealing ring (8) can be inserted into the groove (607). The sealing ring (8) is provided in three identical sets. The three sets of sealing rings (8) are located in the first connecting ring (601) and the second connecting ring (602) and are distributed at equal intervals. The first connecting ring (601) is fixedly installed with half of the bent pipe protective sleeve (2), and the second connecting ring (602) is fixedly installed with the other half of the bent pipe protective sleeve (2).
7. The antifreeze insulation sleeve for a milk conveying pipeline according to claim 1, characterized in that: The adhesive assembly (7) includes a fixing connection layer (701). The outer surface of the straight tube protective sleeve (3) is fixedly installed with the fixing connection layer (701) and the hook and loop layer (704). The outer surface of the fixing connection layer (701) is fixedly installed with a buckle (702). A connecting metal ring (703) is provided on the side of the fixing connection layer (701) near the hook and loop layer (704). An adhesive layer (705) that is slidably connected to the connecting metal ring (703) is adhesively installed on the side of the hook and loop layer (704) away from the straight tube protective sleeve (3).