A hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes

By using a worm gear transmission system, the adjustment process of the teardrop-shaped structure of the underfloor heating pipes is simplified, solving the cumbersome fixing problem in the existing technology, realizing efficient adjustment of pipe position and teardrop size, and improving construction efficiency and operational stability.

CN224944486UActive Publication Date: 2026-11-06CHONGQING DANGDANGMAO ENVIRONMENTAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522288749.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-11-06
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

The existing technology for fixing the teardrop-shaped structure of underfloor heating pipes is cumbersome, requiring repeated disassembly and installation, which affects construction efficiency and operational performance.

Method used

The system employs a worm gear transmission system, where a knob drives the worm to rotate, which in turn rotates the turntable. This causes the slider and arc-shaped support plate to expand or contract, adjusting the size of the water droplet in the pipe and simplifying the operation process.

Benefits of technology

The size of the teardrop shape in the pipe can be adjusted without removing fixed components, reducing the difficulty of operation, improving versatility and stability, and adapting to diverse pipe layout needs.

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Abstract

This utility model discloses a hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes, belonging to the field of underfloor heating pipes. It includes a base and an underfloor heating pipe body. A turntable is rotatably connected to the top of the base, located in the center of the base. Four arc-shaped grooves are equidistantly formed on the surface of the turntable. Sliding blocks are slidably connected to the top of each of the four corners of the base. One end of each of the four sliding blocks is fixedly connected to an arc-shaped support plate. The underfloor heating pipe body is snapped into the interior of the arc-shaped support plate. In this design, the operator only needs to rotate a knob on the outside of the base to drive the worm gear to rotate, thereby causing the turntable to rotate synchronously. The arc-shaped grooves of the turntable will cause the connecting blocks and sliding blocks to slide along the base, ultimately causing the arc-shaped support plate to expand or contract synchronously, completing the adjustment of the drip-shaped size of the underfloor heating pipe body. The entire process does not require disassembling fixed parts, re-drilling holes, or fixing the base, eliminating the "disassembly-adjustment-reinstallation" steps and reducing operational difficulty.
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Description

Technical Field

[0001] This utility model relates to the field of underfloor heating pipes, and more specifically, to a hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes. Background Technology

[0002] During the construction and operation of wet-laid underfloor heating systems, the fixing, positioning, and hydraulic resistance control of the underfloor heating pipes are the main issues affecting the system's installation efficiency and long-term operational performance. The teardrop-shaped structure can prevent water flow from forming eddies or impact dead zones on the inner wall of the pipes. When hot water flows in the wet-laid underfloor heating pipes, the teardrop-shaped arc surface can guide the water flow along a smooth trajectory, reducing the friction coefficient between the water flow and the inner wall of the pipes and reducing frictional resistance. At the same time, at pipe bends or branches, the teardrop shape can make the water flow direction transition smoothly, avoiding a surge in local resistance caused by abrupt changes in cross-section, significantly reducing the overall hydraulic loss of the system, increasing the circulation speed of hot water in the pipes, and ensuring the heat transfer efficiency of the underfloor heating system.

[0003] In existing technologies, when fixing underfloor heating pipes in a teardrop shape, they are often fixed to the ground with clips. When adjusting the size of the teardrop shape of the underfloor heating pipes, it is often necessary to remove the clips that have been fixed to the ground, adjust them, and then reinstall them on the ground with bolts. This process is cumbersome and time-consuming. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes, so as to solve the problems mentioned in the background art.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes includes a base and an underfloor heating pipe body. A turntable is rotatably connected to the top of the base, and the turntable is located in the middle of the base. Four arc-shaped grooves are equidistantly formed on the surface of the turntable. Slider blocks are slidably connected to the top of each of the four corners of the base. An arc-shaped support plate is fixedly connected to one end of each slider. The underfloor heating pipe body is snapped into the inside of the arc-shaped support plate. A connecting block is fixedly connected to one end of each slider, and the connecting block is slidably connected inside the arc-shaped groove.

[0009] Furthermore, a worm gear is rotatably connected inside the base, and a worm is meshed with one side of the worm gear, the worm being rotatably connected inside the base.

[0010] Furthermore, a knob is fixedly connected to one end of the worm gear located outside the base.

[0011] Furthermore, the base has multiple No. 1 fixing bolts connected to its external thread.

[0012] Furthermore, the outer wall of the underfloor heating pipe body is fitted with multiple fixing sleeves.

[0013] Furthermore, a second fixing bolt is installed on the outside of the fixing sleeve.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. In this solution, the operator only needs to turn the knob on the outside of the base to drive the worm gear to rotate, thereby making the turntable rotate synchronously; the arc groove of the turntable will drive the connecting block and the slider to slide along the base, and finally make the arc support plate expand or contract synchronously to complete the adjustment of the teardrop size of the underfloor heating pipe body. The whole process does not require the removal of fixed parts, re-drilling holes or fixing the base, saving the "disassembly-adjustment-reinstallation" steps and reducing the difficulty of operation.

[0017] 2. In this solution, the worm gear and worm wheel are driven to rotate by a knob, which in turn moves the turntable and slider. This allows the arc-shaped support plate to expand or contract synchronously, adjusting the size of the teardrop-shaped structure of the pipe. This significantly improves the product's versatility and adapts to the diverse pipe layout requirements in wet-laid underfloor heating. The one-way self-locking characteristic of the worm wheel and worm gear prevents the worm wheel from rotating on its own after the pipe position and teardrop size are adjusted, thus fixing the position of the turntable, slider, and arc-shaped support plate. No additional locking components are required, simplifying the structure while ensuring that the adjustment state does not fail. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 for Figure 1 Enlarged structural diagram of region A in the middle;

[0020] Figure 3 for Figure 1 A magnified structural diagram of region B in the middle;

[0021] Figure 4 This is a schematic diagram showing the positional relationship between the worm gear and the base in this utility model;

[0022] Figure 5 This is a schematic diagram showing the positional relationship between the turntable and the worm gear in this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base; 11. No. 1 fixing bolt; 12. Underfloor heating pipe body; 13. Fixing sleeve; 14. No. 2 fixing bolt; 15. Turntable; 16. Arc groove; 17. Slider; 18. Connecting block; 19. Arc support plate; 2. Worm gear; 21. Worm; 22. Knob. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] Please see Figures 1-5 A hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes includes a base 1 and an underfloor heating pipe body 12. A turntable 15 is rotatably connected to the top of the base 1. The turntable 15 is located in the middle of the base 1. Four arc-shaped grooves 16 are equidistantly opened on the surface of the turntable 15. Sliding blocks 17 are slidably connected to the top of the four corners of the base 1. One end of each of the four sliding blocks 17 is fixedly connected to an arc-shaped support plate 19. The underfloor heating pipe body 12 is snapped into the inside of the arc-shaped support plate 19. One end of each sliding block 17 is fixedly connected to a connecting block 18, which is slidably connected inside the arc-shaped groove 16.

[0030] In this embodiment, when it is necessary to adjust the position of the underfloor heating pipe body 12 or its teardrop-shaped size, the operator rotates the turntable 15 in the middle of the base 1. Since four arc-shaped grooves 16 are equidistantly opened on the surface of the turntable 15, and each arc-shaped groove 16 is slidably connected to a connecting block 18, and the connecting block 18 is fixedly connected to the slider 17 at the four corners of the base 1, the rotation of the turntable 15 will directly generate a horizontal pushing or pulling force on the connecting block 18 in the arc-shaped groove 16, converting the rotational power into the sliding power of the connecting block 18, providing the initial driving force for the displacement of the slider 17. During the continuous rotation of the turntable 15, the arc-shaped grooves 16, with their unique arc-shaped trajectory, exert a horizontal pushing or pulling force on the connecting block 18. The direction of movement of the connecting block 18 forms a constraint. Unlike the straight channel, the curved design of the arc-shaped channel 16 allows the connecting block 18 to slide synchronously along the arc-shaped trajectory away from or towards the center of the turntable 15 while rotating with the turntable 15. When it is necessary to expand the teardrop-shaped structure of the underfloor heating pipe body 12, the connecting block 18 moves along the arc-shaped channel 16 away from the center of the turntable 15; when it is necessary to shrink the teardrop-shaped structure or clamp the pipe, the connecting block 18 moves along the arc-shaped channel 16 towards the center of the turntable 15. During this process, the equidistant distribution of the arc-shaped channels 16 ensures that the movement speed and displacement of the four connecting blocks 18 are completely consistent, avoiding unilateral offset.

[0031] Example 2:

[0032] Please see Figures 1-5 A hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes includes a worm gear 2 rotatably connected inside a base 1, a worm 21 meshing with one side of the worm gear 2, the worm 21 rotatably connected inside the base 1, a knob 22 fixedly connected to one end of the worm 21 outside the base 1, multiple first-number fixing bolts 11 threadedly connected to the outside of the base 1, multiple fixing sleeves 13 sleeved on the outer wall of the underfloor heating pipe body 12, and second-number fixing bolts 14 installed on the outside of the fixing sleeves 13.

[0033] In this embodiment, the worm gear 2 and worm 21 inside the base 1 form a meshing transmission structure. Compared with traditional gear transmission, the meshing surface between the helical teeth of the worm 21 and the teeth of the worm gear 2 is larger, and there is no obvious tooth backlash during transmission. The rotation amount of the knob 22 can be converted into the rotation angle of the worm gear 2. When the operator rotates the knob 22 at the end of the worm 21, the worm 21 drives the worm gear 2 to rotate smoothly, thereby driving the turntable 15 connected to the worm gear 2 to rotate. The first fixing bolt 11 is used for installation between the base 1 and the ground, and the second fixing bolt 14 is used for installation between the fixing sleeve 13 and the ground.

[0034] The working principle is as follows: First, the base 1 is fixed to the wet-laid underfloor heating ground foundation or support structure by multiple No. 1 fixing bolts 11 connected by external threads. The No. 1 fixing bolts 11 of the corresponding length or specification are selected according to the ground foundation material such as concrete, cement mortar, and insulation layer. The bolt screwing depth is adjusted to ensure that the base 1 can be stably fixed in different construction scenarios, avoiding tilting or displacement during subsequent adjustment or use, and providing a stable benchmark for subsequent pipe installation and adjustment.

[0035] When it is necessary to adjust the position of the underfloor heating pipe body 12 or its teardrop shape, the operator turns the knob 22 at the end of the worm gear 21 located outside the base 1, causing the worm gear 21 to rotate inside the base 1. Since the worm gear 21 meshes with the worm wheel 2 that is rotatably connected inside the base 1, the rotation of the worm gear 21 will drive the worm wheel 2 to rotate synchronously and smoothly, converting the manual rotation power of the knob 22 into the rotational power of the worm wheel 2.

[0036] When the worm gear 2 rotates, it will drive the turntable 15 connected to it to rotate synchronously with the base 1 in the middle of the base 1. There are four arc-shaped grooves 16 equidistantly opened on the surface of the turntable 15, each with a connecting block 18 slidably connected in each groove. The connecting block 18 is fixed to the slider 17 slidably connected to the four corners of the base 1. Therefore, the rotation of the turntable 15 will generate a horizontal force on the connecting block 18 in the arc-shaped groove 16, causing the connecting block 18 to slide along the arc-shaped trajectory of the arc-shaped groove 16.

[0037] When the connecting block 18 slides along the arc groove 16, it will drive the slider 17 to move synchronously along the horizontal direction of the base 1. If the connecting block 18 slides away from the center of the turntable 15, the slider 17 will move to the outer corner of the four corners of the base 1, causing the arc support plate 19 at one end of the slider 17 to expand outward, thus enlarging the teardrop-shaped structure of the underfloor heating pipe body 12. If the connecting block 18 slides closer to the center of the turntable 15, the slider 17 will move towards the center of the base 1, causing the arc support plate 19 to contract inward, thus shrinking the teardrop-shaped structure or clamping the pipe. At the same time, the one-way self-locking characteristics of the worm gear 2 and the worm 21 can prevent the worm gear 2 from rotating on its own after adjustment, thereby fixing the position of the turntable 15, the slider 17 and the arc support plate 19, and ensuring the stability of the pipe.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes, comprising a base (1) and an underfloor heating pipe body (12), characterized in that: A turntable (15) is rotatably connected above the base (1). The turntable (15) is located in the middle of the base (1). Multiple arc-shaped grooves (16) are equidistantly opened on the surface of the turntable (15). Slider blocks (17) are slidably connected above the four corners of the base (1). One end of each slider (17) is fixedly connected to an arc-shaped support plate (19). The underfloor heating pipe body (12) is snapped into the inside of the arc-shaped support plate (19). One end of each slider (17) is fixedly connected to a connecting block (18). The connecting block (18) is slidably connected inside the arc-shaped groove (16).

2. The hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes according to claim 1, characterized in that: The base (1) is rotatably connected to a worm gear (2), and a worm (21) is meshed with one side of the worm gear (2). The worm (21) is rotatably connected to the inside of the base (1).

3. The hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes according to claim 2, characterized in that: A knob (22) is fixedly connected to one end of the worm gear (21) located outside the base (1).

4. The hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes according to claim 1, characterized in that: The base (1) is externally threaded with multiple No. 1 fixing bolts (11).

5. The hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes according to claim 1, characterized in that: The outer wall of the underfloor heating pipe body (12) is fitted with multiple fixing sleeves (13).

6. The hydraulic drag-reducing drip head structure for wet-laid underfloor heating pipes according to claim 5, characterized in that: The fixing sleeve (13) is fitted with a second fixing bolt (14).