Water pipe electric heat tracing structure for preventing frost crack of public toilet in cold region

Abstract

The utility model provides an electric heat tracing structure of preventing frost crack of cold region public toilet water pipe, relates to intelligent public toilet technical field, including water pipe body, the outer surface spiral winding of water pipe body has electric heat tracing assembly, the outer surface of water pipe body is sleeved with a plurality of positioning clamp, the opposite surface of adjacent two positioning clamps both sides all is provided with a semicircle heat preservation sleeve board, the utility model discloses the mutual match between the arc clamping groove of positioning clamp, two semicircle sleeve board and fixed bolt, effectively solve the problem that electric heat tracing element is easy to shift because of vibration, thermal expansion and cold contraction in prior art, ensure that electric heat tracing assembly is always closely combined with water pipe body, and the self -limiting temperature type electric heat tracing band can evenly release heat, maintain the whole temperature of water pipe above freezing point, reduce the risk of water pipe freezing and cracking, and the arc clamping groove can form protection to electric heat tracing assembly, avoid its direct extrusion damage under external force.

Description

Technical Field

[0001] This utility model relates to the field of smart public toilet technology, and in particular to an electric heat tracing insulation structure for water pipes in cold-region public toilets that is frost-resistant and crack-resistant. Background Technology

[0002] 5G smart public toilets are modern public toilet facilities that integrate 5G communication technology, Internet of Things technology and public health service functions. They have functions such as real-time environmental monitoring, people flow statistics, intelligent flushing, resource consumption metering, and remote operation and maintenance monitoring. They can achieve refined management through a data platform, improve the comfort of public toilet use and operational efficiency, and are widely used in public spaces, transportation hubs and other scenarios in cold-region cities. In cold winters, public toilet water pipes are prone to freezing and cracking due to low temperatures, which not only affects normal use but also wastes water resources and increases facility maintenance costs. The electric heat tracing insulation structure is an active insulation system formed by laying electric heat tracing elements on the outer wall of the water pipe and combining them with the insulation layer. It can maintain the temperature of the fluid inside the water pipe above the freezing point through the heat release of the electric heat tracing elements, effectively solving the problem of freezing water pipes in public toilets in cold regions.

[0003] The existing technology has the following shortcomings: Existing electric heat tracing structures mostly use a single binding method to fix the electric heat tracing element, lacking a dedicated positioning structure. During long-term use, the electric heat tracing element is prone to displacement and loosening due to water pipe vibration and thermal expansion and contraction. This results in the electric heat tracing element not adhering tightly to the outer wall of the water pipe, causing uneven local heating and failing to effectively maintain the overall temperature of the water pipe, still posing a risk of freezing and cracking. Existing insulation layers are mostly integral or spliced ​​by simple clips, without linkage with the positioning structure of the electric heat tracing element. Disassembly and assembly require the removal of the entire insulation layer or multiple splicing units, making the operation cumbersome. Utility Model Content

[0004] This utility model proposes a frost-resistant and crack-resistant electric heat tracing insulation structure for water pipes in public toilets in cold regions. The electric heat tracing element is fixed by clamps, and the insulation layer is fixed to the outer surface of the clamps to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a frost-resistant and crack-resistant electric heat tracing insulation structure for water pipes in public toilets in cold regions, comprising a water pipe body, an electric heat tracing component spirally wound on the outer surface of the water pipe body, a plurality of positioning clamps sleeved on the outer surface of the water pipe body, and a semi-circular insulation sleeve plate provided on the upper and lower sides of the opposite surfaces of two adjacent positioning clamps, the semi-circular insulation sleeve plate being made of polyurethane foam material, and the electric heat tracing component being a self-regulating electric heat tracing cable; The positioning clamp includes two semi-circular sleeve plates, which are respectively fitted onto the front and rear sides of the outer surface of the water pipe body. An arc-shaped clamping groove is fixedly connected to the inner side of the semi-circular sleeve plate. The outer surface of the electric heat tracing assembly is in contact with the inner surface of the arc-shaped clamping groove. A partition plate is fixedly connected to the middle of the outer surface of the semi-circular sleeve plate. A through-hole is provided on both the upper and lower sides of the partition plate. A fixing bolt is provided on the inner surface of the through-hole.

[0006] Preferably, two plug-in posts are fixedly connected to the left and right sides of the outer surface of the semi-circular sleeve plate, and arc-shaped slots are opened on the upper and lower sides of the outer surface of the plug-in posts.

[0007] Preferably, the inner surface of the semi-circular insulation sleeve is provided with insertion holes at all four corners, and the insertion post is slidably inserted into the inner surface of the insertion hole.

[0008] Preferably, the inner surface of the insertion hole is provided with connecting grooves on both the upper and lower sides, and the inner surface of the connecting groove is slidably connected with a sliding plate, and the opposing surfaces of the two sliding plates are both arc-shaped surfaces.

[0009] Preferably, a clamping spring is fixedly connected to the opposite sides of both sliding plates, and the end of the clamping spring away from the sliding plate is fixedly connected to the inner wall of the connecting groove.

[0010] Preferably, the side of the sliding plate away from the clamping spring extends through to the inner surface of the arc-shaped groove.

[0011] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. In this utility model, through the mutual cooperation between the arc-shaped clamping groove of the positioning clamp, the two semi-circular sleeve plates and the fixing bolt, after the two semi-circular sleeve plates are fitted onto the outside of the water pipe body, the arc-shaped clamping groove can fit against the surface of the electric heat tracing component. By passing the fixing bolt through the connecting hole and tightening it, the two semi-circular sleeve plates are clamped together. The arc-shaped clamping groove tightly presses the electric heat tracing component against the outer wall of the water pipe body, preventing the electric heat tracing component from shifting. This effectively solves the problem in the prior art that the electric heat tracing element is prone to shifting due to vibration and thermal expansion and contraction, ensuring that the electric heat tracing component is always tightly fitted to the water pipe body. The self-limiting electric heat tracing tape can release heat evenly, maintaining the overall temperature of the water pipe above the freezing point, reducing the risk of water pipe freezing and cracking. At the same time, the arc-shaped clamping groove can protect the electric heat tracing component, preventing it from being directly damaged by external force.

[0012] 2. In this utility model, through the mutual cooperation between the insertion post of the positioning clamp, the insertion hole of the semi-circular insulation sleeve, the sliding plate, and the tightening spring, when installing the semi-circular insulation sleeve, the insertion hole is aligned with the insertion post and inserted. The insertion post presses against the arc-shaped surface of the sliding plate, causing the sliding plate to compress the tightening spring along the connecting groove. When the arc-shaped groove of the insertion post aligns with the sliding plate, the tightening spring resets and pushes the sliding plate into the arc-shaped groove, thus fixing the semi-circular insulation sleeve to the positioning clamp. During disassembly and assembly, directly... Pulling the semi-circular insulation sleeve outward causes the inner wall of the arc-shaped groove to press against the arc-shaped surface of the sliding plate, forcing the sliding plate to automatically retract into the connecting groove and compress the top spring. After the sliding plate disengages from the arc-shaped groove, the semi-circular insulation sleeve can be removed. This solves the problem of cumbersome disassembly and assembly of existing insulation layers. No additional tools or access to the structure are required; the disassembly and assembly of the semi-circular insulation sleeve can be completed simply by pulling it. Furthermore, only the units between adjacent positioning clamps need to be disassembled and assembled, without affecting the entire structure, which greatly improves maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the electric heat tracing and insulation structure for water pipes in cold-region public toilets that is designed to prevent freezing and cracking. Figure 2 This is a schematic diagram of the open structure of the semi-circular thermal insulation sleeve of this utility model; Figure 3 This is an enlarged cross-sectional structural diagram of the semi-circular thermal insulation sleeve of this utility model; Figure 4 This is a schematic diagram of the positioning clamp of this utility model.

[0014] Legend: 1. Water pipe body; 2. Electric heat tracing assembly; 3. Positioning clamp; 31. Semi-circular sleeve plate; 32. Arc-shaped groove; 33. Divider plate; 34. Connecting through hole; 35. Fixing bolt; 36. Insertion post; 37. Arc-shaped groove; 4. Semi-circular insulation sleeve plate; 41. Insertion hole; 42. Connecting slide; 43. Sliding plate; 44. Tightening spring. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figure 1 , Figure 2and Figure 4 As shown, this utility model provides a technical solution: including a water pipe body 1, an electric heat tracing component 2 spirally wound on the outer surface of the water pipe body 1, a plurality of positioning clamps 3 sleeved on the outer surface of the water pipe body 1, a semi-circular heat insulation sleeve 4 is provided on the upper and lower sides of the opposite surfaces of two adjacent positioning clamps 3, the semi-circular heat insulation sleeve 4 is made of polyurethane foam material, the electric heat tracing component 2 is a self-limiting heat tracing cable, the positioning clamp 3 includes two semi-circular sleeves 31, the two semi-circular sleeves 31 are respectively sleeved on the front and rear sides of the outer surface of the water pipe body 1, an arc-shaped clamping groove 32 is fixedly connected to the inner side of the semi-circular sleeve 31, the outer surface of the electric heat tracing component 2 is in contact with the inner surface of the arc-shaped clamping groove 32, a partition plate 33 is fixedly connected to the middle of the outer surface of the semi-circular sleeve 31, a connecting hole 34 is opened on the upper and lower sides of the partition plate 33, and a fixing bolt 35 is provided on the inner surface of the connecting hole 34; The overall effect of Embodiment 1 is as follows: by fitting two semi-circular sleeves 31 together on the outside of the water pipe body 1, the arc-shaped clamping groove 32 can precisely fit the surface of the spirally wound electric heat tracing component 2. By using fixing bolts 35 to pass through the connecting holes 34 and tighten them, the two semi-circular sleeves 31 can form a stable clamping force, tightly pressing the electric heat tracing component 2 against the outer wall of the water pipe body 1, preventing the electric heat tracing component 2 from shifting or loosening due to water pipe vibration and thermal expansion and contraction in winter. At the same time, the partition plate 33 can position the adjacent semi-circular insulation sleeves 4 to prevent misalignment when splicing the insulation layer. The self-limiting electric heat tracing cable can automatically adjust the heating power according to the temperature of the water pipe body 1 to ensure that the temperature of the fluid in the water pipe is maintained above the freezing point. The semi-circular insulation sleeves 4 made of polyurethane foam can reduce the heat loss of the electric heat tracing component 2 and further enhance the antifreeze effect.

[0018] Example 2: As Figure 3 and Figure 4 As shown, this utility model provides a technical solution: two plug-in posts 36 are fixedly connected to the left and right sides of the outer surface of the semi-circular sleeve plate 31. Arc-shaped slots 37 are opened on the upper and lower sides of the outer surface of the plug-in posts 36. Plug-in holes 41 are opened at the four corners of the inner surface of the semi-circular insulation sleeve plate 4. The plug-in posts 36 are slidably inserted into the inner surface of the plug-in holes 41. Connecting grooves 42 are opened on the upper and lower sides of the inner surface of the plug-in holes 41. Sliding plates 43 are slidably connected to the inner surface of the connecting grooves 42. The opposite surfaces of the two sliding plates 43 are arc-shaped surfaces. A tightening spring 44 is fixedly connected to the opposite surfaces of the two sliding plates 43. The end of the tightening spring 44 away from the sliding plate 43 is fixedly connected to the inner wall of the connecting groove 42. The side of the sliding plate 43 away from the tightening spring 44 extends through to the inner surface of the arc-shaped slot 37. The overall effect of Embodiment 2 is as follows: the cooperation between the plug-in post 36 and the plug-in hole 41 can achieve precise docking between the semi-circular insulation sleeve plate 4 and the positioning clamp 3. During installation, the plug-in post 36 presses the arc surface of the sliding clamp plate 43, causing the sliding clamp plate 43 to compress the top spring 44 along the connecting groove 42. When the arc groove 37 is aligned with the sliding clamp plate 43, the top spring 44 resets and pushes the sliding clamp plate 43 into the arc groove 37, quickly completing the fixation of the semi-circular insulation sleeve plate 4 and preventing the insulation layer from falling off during use. During disassembly and assembly, the semi-circular insulation sleeve plate 4 is pulled outward, and the inner wall of the arc groove 37 presses the arc surface of the sliding clamp plate 43, forcing the sliding clamp plate 43 to automatically retract and compress the top spring 44. The insulation layer and the clamp can be separated without additional tools, realizing the independent disassembly and assembly of a single insulation unit and greatly improving the convenience of maintenance.

[0019] The working principle of the entire device is as follows: Before use, the electric heat tracing component 2 is spirally wound around the outer surface of the water pipe body 1. Then, the two semi-circular sleeves 31 of the positioning clamp 3 are respectively fitted onto the front and rear sides of the water pipe body 1, so that the arc-shaped groove 32 fits against the electric heat tracing component 2. The fixing bolts 35 are inserted and tightened to complete the fixing of the electric heat tracing component 2 by the positioning clamp 3. Next, the insertion hole 41 of the semi-circular insulation sleeve 4 is aligned with the insertion post 36 of the positioning clamp 3 and inserted. The insertion post 36 presses against the sliding plate 43 and compresses the top spring 44. When the arc-shaped groove 37 is aligned with the sliding plate 43, the top spring 44 pushes the sliding plate 43 into the arc-shaped groove 37, thus fixing the electric heat tracing component 2. The semi-circular insulation sleeve 4 is fixed to the positioning clamp 3. After the adjacent semi-circular insulation sleeves 4 are spliced ​​together, a complete insulation layer is formed. When used in cold winters, the electric heat tracing component 2 is energized and heats up. The self-limiting electric heat tracing tape automatically adjusts the heating power according to the temperature of the water pipe body 1 to maintain the temperature of the fluid in the water pipe above the freezing point. The semi-circular insulation sleeve 4 reduces heat loss and ensures the antifreeze effect. When maintenance is required, the semi-circular insulation sleeve 4 of the area to be maintained is pulled outward. The arc-shaped groove 37 squeezes the sliding plate 43 to make it retract and disengage from the groove. After the insulation layer is removed, the electric heat tracing component 2 or the water pipe body 1 can be maintained. After maintenance, it can be reinstalled according to the same steps.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A frost-resistant and crack-resistant electric heat tracing insulation structure for water pipes in public toilets in cold regions, comprising a water pipe body (1), wherein an electric heat tracing assembly (2) is spirally wound on the outer surface of the water pipe body (1), characterized in that: The outer surface of the water pipe body (1) is fitted with several positioning clamps (3). A semi-circular heat-insulating sleeve (4) is provided on the upper and lower sides of the opposite surfaces of two adjacent positioning clamps (3). The semi-circular heat-insulating sleeve (4) is made of polyurethane foam material. The electric heat tracing assembly (2) is made of self-limiting electric heat tracing tape. The positioning clamp (3) includes two semi-circular sleeves (31), which are respectively sleeved on the front and rear sides of the outer surface of the water pipe body (1). The inner side of the semi-circular sleeve (31) is fixedly connected with an arc-shaped clamping groove (32). The outer surface of the electric heat tracing assembly (2) is in contact with the inner surface of the arc-shaped clamping groove (32). A partition plate (33) is fixedly connected to the middle of the outer surface of the semi-circular sleeve (31). The upper and lower sides of the partition plate (33) are provided with connecting holes (34) that pass through from front to back. The inner surface of the connecting holes (34) is provided with fixing bolts (35).

2. The anti-freezing and cracking electric heat tracing insulation structure for water pipes in cold-region public toilets according to claim 1, characterized in that: Two plug-in pins (36) are fixedly connected to the left and right sides of the outer surface of the semi-circular sleeve plate (31), and arc-shaped slots (37) are opened on the upper and lower sides of the outer surface of the plug-in pins (36).

3. The frost-resistant and crack-resistant electric heat tracing insulation structure for water pipes in cold-region public toilets according to claim 2, characterized in that: The inner surface of the semi-circular insulation sleeve (4) is provided with four corners of the insertion hole (41), and the insertion post (36) is slidably inserted into the inner surface of the insertion hole (41).

4. The frost-resistant and crack-resistant electric heat tracing insulation structure for water pipes in cold-region public toilets according to claim 3, characterized in that: The inner surface of the insertion hole (41) is provided with connecting grooves (42) on both the upper and lower sides. The inner surface of the connecting groove (42) is slidably connected with a sliding plate (43). The opposing surfaces of the two sliding plates (43) are both arc-shaped surfaces.

5. The anti-freezing and cracking electric heat tracing insulation structure for water pipes in cold-region public toilets according to claim 4, characterized in that: Each of the two sliding plates (43) is fixedly connected to a tensioning spring (44) on its opposite side. The end of the tensioning spring (44) away from the sliding plate (43) is fixedly connected to the inner wall of the connecting groove (42).

6. The anti-freezing and cracking electric heat tracing insulation structure for water pipes in cold-region public toilets according to claim 5, characterized in that: The sliding plate (43) extends from the side away from the clamping spring (44) to the inner surface of the arc-shaped groove (37).

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