Straight-through pipe fitting with self-filtering function for floor heating pipeline
By designing an integrally molded straight pipe fitting, adopting an inclined pipe body and filter cavity structure, and combining guide ribs and filter components, the problems of reduced flow velocity and incomplete filtration in underfloor heating pipes are solved, achieving fluid cleanliness and structural stability.
Patent Information
- Application Number
- CN202520211421.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The straight-through fittings in existing underfloor heating systems suffer from reduced flow rate and poor filtration effect when filtering impurities. Furthermore, the existing filtration structure is prone to fluid leakage, leading to fluid leakage and reduced flow rate. The complex structure also makes the cleaning process cumbersome.
Design an integrally molded straight pipe fitting, comprising an inclined pipe body and a filter chamber, with filter components and guide ribs inside. The flow channel is divided into inlet and outlet flow channel sections by the guide ribs, and the filter components are set in the filter chamber to realize the self-filtration function of the fluid.
It features a high-strength structural design, eliminates the risk of fluid leakage, ensures fluid cleanliness, provides 100% fluid filtration, and simplifies the cleaning process.
Smart Images

Figure CN223635725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of floor heating metal pipe fitting, especially a straight-through pipe fitting with self-filtering function for floor heating pipeline. BACKGROUND
[0002] Floor heating is a common heating method at present, which has the advantages of saving space, good thermal stability, long service life, strong adaptability, etc.
[0003] In the floor heating pipeline, the straight-through pipe fitting is a common connecting piece, mainly used for connecting two pipes on the same straight line to ensure smooth flow of fluid. The main functions of the straight-through pipe fitting are: connecting pipes: used for connecting two pipes on the same straight line to ensure the continuity of the pipeline; fluid transmission: ensuring the smooth flow of hot water or heat medium in the pipeline, reducing resistance; simplifying installation: simplifying the layout of the pipeline and reducing the use of complex connecting pieces such as elbows.
[0004] After the heating water enters the floor heating pipeline, the flow rate of the heating water decreases, and the dirt such as soil and rust carried in the heating water will deposit in the power supply pipeline, causing the heating capacity to decrease. At this time, special personnel carrying professional equipment are needed for cleaning, and the cleaning process is complicated, which will produce a large amount of noise and sewage, not only causing sound pollution but also consuming a large amount of water resources. This cleaning method is complicated and time-consuming. Moreover, according to the drawings, it is speculated that the technical solution of technical example 1 is not real, and there is a large difference between its shape and the shape of the real pipe fitting, making it difficult to truly land.
[0005] Prior art example 1, refer to patent document CN221780814U, discloses a floor heating pipe, which comprises a connecting pipe and a filter pipe, the filter pipe is sealed and inserted with the connecting pipe at both ends along the length direction, a filter module for filtering impurities is arranged in the filter pipe, a connecting module is arranged at both ends of the filter pipe along the length direction, and the connecting modules at both ends of the filter pipe are connected with the corresponding connecting pipes respectively to fix the connecting pipes. Since the filter module is arranged in the filter pipe, the floor heating pipe can filter out the impurities in the water flow, prevent the impurities from forming scale on the inner wall of the floor heating pipe after long-time heating, and ensure the heat dissipation capacity and heat conduction effect of the floor heating pipe; in addition, the connecting pipe and the filter pipe are sealed and inserted and connected through the connecting module, which can ensure the connection stability of the connecting pipe and the filter pipe. According to the drawings of the specification of technical example 1, it can be known that the filter module is entirely occupied in the filter pipe, which will inevitably cause a large resistance to the fluid, resulting in a decrease in flow rate, and once the local filter module is blocked by impurities, it will more obviously cause a decrease in flow rate.
[0006] The prior art example 2, refer to patent document CN220017474U discloses a water inlet pipe fitting of floor heating water distributor, including water inlet pipeline, control ball valve located on water inlet pipeline, filter located on water inlet pipeline, pressure gauge located on water inlet pipeline, filter includes pipe body arranged on lower side of water inlet pipeline and inclined downward to water flow direction, filter sleeve embedded in pipe body at lower end and extending into water inlet pipeline at upper end, end cover arranged on lower end of pipe body and detachably connected on pipe body, cavity layer is formed in end cover and communicated with pipe body, one side of end cover is provided with drain pipe, outer thread sleeve is arranged at one end of drain pipe away from end cover, inner thread cover is threadedly connected on outer thread sleeve, rubber sealing plug is arranged in inner thread cover for abutting against port of outer thread sleeve, rubber sealing plug is cylindrical and cross section outer diameter is smaller than inner diameter of outer thread sleeve, a plurality of drain holes are formed on end face of inner thread cover, corrugated expansion pipe is arranged on inner thread cover and one end of corrugated expansion pipe is sleeved on inner thread cover. It can be known from the description and the drawings of the technical example 1 that the filter sleeve is arranged on the side of the waterway, so that a large amount of fluid cannot pass through the filter sleeve during the flow process, and thus the effective filtering effect cannot be achieved.
[0007] In summary, there is an urgent need for a straight-through pipe fitting in a floor heating pipeline which can achieve good filtering effect. SUMMARY
[0008] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a straight-through pipe fitting with self-filtering function in a floor heating pipeline.
[0009] The technical scheme for solving the technical problem of the utility model is as follows: a straight-through pipe fitting with self-filtering function in a floor heating pipeline, comprising:
[0010] The straight-through pipe fitting body has a water inlet port and a water outlet port which are communicated with each other, and a main flow channel is formed between the water inlet port and the water outlet port;
[0011] The inclined pipe body is integrally formed with the straight-through pipe fitting body, the inclined pipe body has a filter cavity, and the filter cavity is communicated with the main flow channel;
[0012] The filter member is arranged in the filter cavity;
[0013] The flow guide rib is protruded at the lower end of the main flow channel, the flow guide rib divides the main flow channel into a water inlet flow channel section and a water outlet flow channel section, and the flow guide rib abuts against the filter member, so that the fluid in the water inlet flow channel section must flow into the water outlet flow channel section after passing through the filter member.
[0014] In some preferred embodiments of the utility model, the upper end of the inclined pipe body has a first opening, and a filter valve cover is detachably connected at the first opening.
[0015] Further, the upper end of the inclined pipe body is provided with a stepped groove, a sealing gasket is arranged in the stepped groove, and the sealing gasket is in abutment with the filter valve cover, so that the filter valve cover and the inclined pipe body are in sealing cooperation.
[0016] Preferably, the inner end of the filter cavity is provided with a second opening and a third opening, the filter cavity is in communication with the water inlet flow channel section through the second opening, the filter cavity is in communication with the water outlet flow channel section through the third opening, and the flow guide ribs are located at the intersection of the second opening and the third opening.
[0017] More preferably, the flow guide ribs and the inner wall of the inclined pipe body are both provided with first limiting steps, the inner end of the filter member is in abutment with the first limiting steps and forms a stop cooperation.
[0018] The filter valve cover is provided with second limiting steps, and the outer end of the filter member is in abutment with the second limiting steps and forms a stop cooperation.
[0019] It is worth mentioning that the inner diameter of the filter cavity is larger than the outer diameter of the filter member, so that a cooperation gap is formed between the filter member and the inner wall of the filter cavity.
[0020] The lower end of the filter valve cover extends downward to form a connecting section, the connecting section at least partially extends into the cooperation gap and is in threaded connection cooperation with the filter cavity through a threaded structure, and the filter member is in abutment with the inner wall of the connecting section.
[0021] Preferably, the outer end of the filter valve cover is provided with an outer hexagonal flat head section.
[0022] Further, the outer hexagonal flat head section is provided with a lug on the side wall, and the lug can be connected to a signboard.
[0023] In some preferred embodiments of the present application, the filter member includes a cylindrical filter cartridge and filter particles filled in the cylindrical filter cartridge.
[0024] The present application has the following beneficial effects:
[0025] I. The straight-through pipe body and the inclined pipe body adopt an integrated structure, so that the structural strength is high, and the fluid leakage risk existing in the assembly structure is eliminated.
[0026] II. The filter member arranged in the filter cavity can effectively filter the fluid passing through the filter member to intercept impurities, so that the fluid after passing is more clean.
[0027] III. By setting the guide ribs, the main flow channel is divided into zones, and the guide ribs and the filter member cooperate with each other, so that the fluid in the water inlet flow channel section must flow into the water outlet flow channel section after passing through the filter member, thereby achieving a 100% fluid filtering function. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is the overall assembly view of the present utility model.
[0029] Figure 2 is the sectional view and fluid flow direction schematic view of the present utility model.
[0030] Figure 3 is the sectional view of the straight-through pipe fitting main body and the inclined pipe body in the present utility model.
[0031] Figure 4 is the structural schematic view of the filter valve cover.
[0032] Figure 5 is the sectional view of the filter valve cover.
[0033] Figure 6 is the schematic view of the filter member.
[0034] Figure 7 is the axonometric view of the straight-through pipe fitting main body and the inclined pipe body in the present utility model.
[0035] Figure 8 is the schematic view when the filter valve cover is disassembled.
[0036] In the figure: 1, straight-through pipe fitting main body; 11, water inlet port; 12, water outlet port; 13, main flow channel; 131, water inlet flow channel section; 132, water outlet flow channel section; 2, inclined pipe body; 21, filter cavity; 211, second opening; 212, third opening; 22, filter member; 221, cylindrical filter cartridge; 222, filter particulate; 23, first opening; 24, filter valve cover; 241, connecting section; 242, threaded structure; 243, inner wall of the connecting section; 244, outer hexagonal flat head section; 245, lug; 25, stepped groove; 3, guide rib; 4, sealing washer; 6, first limiting step; 7, second limiting step. DETAILED DESCRIPTION
[0037] The present utility model will be further described below in combination with the drawings and specific embodiments. It should be noted that the embodiments are only specific elaborations of the present utility model, and the purpose is to enable those skilled in the art to better understand the technical solutions of the present utility model, and should not be regarded as a limitation of the present utility model.
[0038] In the description of the utility model, it needs to explain, if appearing the orientation or position relation of the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and so on indicated based on the orientation or position relation shown in the drawing, only is for the convenience of describing the utility model and simplifying the description, and is not the indication or the implied device or the element that the indicated must have the specific orientation, constructs and operates with the specific orientation, therefore cannot be understood as the limitation to the utility model.
[0039] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, if appearing the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be the intercommunication of two elements. For the person skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0040] Embodiment one
[0041] Refer to Figures 1-8 A kind of straight-through pipe fitting with self-filtering function in floor heating pipeline, including: straight-through pipe fitting main body 1, with each other lead-through water inlet port 11 and water outlet port 12, and the water inlet port 11 and water outlet port 12 between form main body flow channel 13;Inclined pipe body 2, with the straight-through pipe fitting main body 1 integrally formed, the inclined pipe body 2 has filter cavity 21 in, the filter cavity 21 is communicated with main body flow channel 13;Filtering component 22, it is arranged in the filter cavity 21;Flow guide rib 3, it is protruding in the lower end of main body flow channel 13, the flow guide rib 3 divides main body flow channel 13 into water inlet flow channel section 131 and water outlet flow channel section 132, and the flow guide rib 3 is resisted with filtering component 22, so that water inlet flow channel section 131 in fluid must flow into water outlet flow channel section 132 after passing through filtering component 22. More specifically, the inner end of the filter cavity 21 has second opening 211 and third opening 212, the filter cavity 21 is communicated with water inlet flow channel section 131 through second opening 211, the filter cavity 21 is communicated with water outlet flow channel section 132 through third opening 212, and the flow guide rib 3 is located at the junction of second opening 211 and second opening 211.
[0042] The above is the basic structural scheme of the utility model, and compared with the prior art, the distinguishing technical features and advantages are at least as follows: first, the straight-through pipe main body 1 and the inclined pipe body 2 adopt an integrated structure, so that the structural strength is high, and the fluid leakage risk existing in the assembled structure is eliminated; second, the filter member 22 arranged in the filter cavity 21 can effectively filter the fluid passing through the filter member 22 to intercept impurities, so that the fluid after passing is cleaner; third, the flow guide ribs 3 are arranged to play a partitioning role on the main flow channel 13, and the flow guide ribs 3 cooperate with the filter member 22 to make the fluid in the water inlet flow channel section 131 flow into the water outlet flow channel section 132 after passing through the filter member 22, thereby achieving a 100% fluid filtering function.
[0043] With reference to Figure 6 Preferably, the filter member 22 comprises a cylindrical filter cartridge 221 and filter particles 222 filled in the cylindrical filter cartridge 221. The filter particles 222 can be ceramic filter material, activated carbon, quartz sand, etc., which are not particularly limited here.
[0044] Embodiment two
[0045] On the basis of the structure of embodiment one, the embodiment provides an optimal disassembled structure scheme of the filter member 22, which is as follows:
[0046] With reference to Figure 8 In some preferred embodiments of the utility model, the upper end of the inclined pipe body 2 has a first opening 23, and the filter valve cover 24 is detachably connected at the first opening 23. When disassembly is needed, the filter valve cover 24 is opened to expose the first opening 23 to the outside, so that the user can take out the filter member 22 in the filter cavity 21 or put the filter member 22 into the empty filter cavity 21.
[0047] It should be noted that, in order to prevent fluid from leaking from the assembly gap between the inclined pipe body 2 and the filter cavity valve cover, the sealing structure adopted is as follows: Figure 2 The upper end of the inclined pipe body 2 also has a stepped groove 25, and the stepped groove 25 is provided with a sealing gasket 4, and the sealing gasket 4 abuts against the filter valve cover 24 to form a sealing fit between the filter valve cover 24 and the inclined pipe body 2. Through the arrangement of the sealing gasket 4, the assembly gap between the inclined pipe body 2 and the filter cavity valve cover can be sealed, thereby providing effective sealing function.
[0048] The limiting structure of the filter member 22 is as follows: Figure 2The first limiting step 6 is arranged on the guide rib 3 and the inner wall of the inclined pipe body 2, and the inner end of the filter component 22 is abutted against the first limiting step 6 and forms a stop cooperation.
[0049] Embodiment three
[0050] With reference to Figures 2-5 In the embodiment, the inner diameter size of the filter cavity 21 is greater than the outer diameter size of the filter component 22, so that a cooperation gap is formed between the filter component 22 and the inner wall of the filter cavity 21; the lower end of the filter valve cover 24 extends downward to form a connecting section 241, the connecting section 241 is at least partially inserted into the cooperation gap and is threadedly connected with the filter cavity 21 through a threaded structure 242. On the other hand, the filter component 22 is abutted against the inner wall of the connecting section 241, that is, the connecting section 241 on the filter cavity valve cover can clamp the filter component 22 and provide a certain supporting force, so that the filter component 22 will not be displaced in the use process, thereby continuously and reliably providing the filtering function.
[0051] Preferably, the outer end of the filter valve cover 24 is provided with an outer hexagonal flat head section 244, and a customized inner hexagonal wrench is required to cooperate with the outer hexagonal flat head section 244 when disassembling the filter valve cover 24, so as to prevent being randomly opened and closed, thereby providing better safety.
[0052] More preferably, the outer hexagonal flat head section 244 has an ear 245 on the side wall, and the ear 245 can be connected to a signboard. Since the filter component 22 has performance attenuation in the use process, the maintenance period of the matched filter component 22 is proposed according to the water quality characteristics of each region, the user records the maintenance information in the signboard each time, and the signboard is connected to the ear 245, thereby playing a prompting role and preventing the signboard from being lost.
[0053] It should be pointed out that other technical solutions of the utility model belong to the prior art, and therefore are not described in detail.
[0054] The above description is only the preferred embodiments of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the concept of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model.
Claims
1. A straight-through pipe fitting with self-filtering function for use in a floor heating pipe, characterized in that, Including: The main body (1) of the straight pipe fitting has an inlet port (11) and an outlet port (12) that are interconnected, and the inlet port (11) and the outlet port (12) form a main flow channel (13); An inclined tube (2) is integrally formed with the straight pipe body (1). The inclined tube (2) has a filter chamber (21) inside, and the filter chamber (21) is connected to the main flow channel (13). A filter element (22) is disposed in the filter cavity (21); The guide rib (3) protrudes from the lower end of the main flow channel (13). The guide rib (3) divides the main flow channel (13) into an inlet flow channel section (131) and an outlet flow channel section (132). The guide rib (3) abuts against the filter component (22) so that the fluid in the inlet flow channel section (131) must flow into the outlet flow channel section (132) after passing through the filter component (22).
2. The straight-through pipe fitting with self-filtering function in the floor heating pipe according to claim 1, characterized in that: The upper end of the inclined tube (2) has a first opening (23), and a filter valve cover (24) is detachably connected to the first opening (23).
3. The straight-through pipe fitting with self-filtering function in the floor heating pipe according to claim 2, characterized in that: The upper end of the inclined tube (2) also has a stepped groove (25), in which a sealing gasket (4) is provided, and the sealing gasket (4) abuts against the filter valve cover (24) so that a sealing fit is formed between the filter valve cover (24) and the inclined tube (2).
4. The straight-through pipe fitting with self-filtering function in the floor heating pipe according to claim 1, characterized in that: The inner end of the filter chamber (21) has a second opening (211) and a third opening (212). The filter chamber (21) is connected to the water inlet channel section (131) through the second opening (211), and the filter chamber (21) is connected to the water outlet channel section (132) through the third opening (212). The guide rib (3) is located at the junction of the second opening (211) and the second opening (212).
5. The through pipe with self-filtering function used in the radiant floor heating pipe according to claim 1, characterized in that: The guide rib (3) and the inner wall of the inclined tube (2) are provided with a first limiting step (6), and the inner end of the filter component (22) abuts against the first limiting step (6) and forms a stop fit.
6. The through pipe with self-filtering function in the floor heating pipe according to claim 2, characterized in that: The filter valve cover (24) is provided with a second limiting step (7), and the outer end of the filter component (22) abuts against the second limiting step and forms a stop fit.
7. The through pipe with self-filtering function in the floor heating pipe according to claim 2, characterized in that: The inner diameter of the filter chamber (21) is larger than the outer diameter of the filter member (22) so that a fitting gap is formed between the filter member (22) and the inner wall of the filter chamber (21). The lower end of the filter valve cover (24) extends downward to form a connecting section (241). The connecting section (241) extends at least partially into the mating gap and forms a threaded connection with the filter cavity (21) through a threaded structure (242). The filter component (22) abuts against the inner wall of the connecting section (241).
8. The through pipe with self-filtering function in the floor heating pipe according to claim 2, characterized in that: The outer end of the filter valve cover (24) is provided with an external hexagonal flat-head section (244).
9. The through pipe with self-filtering function in the floor heating pipe according to claim 8, characterized in that: The side wall of the external hexagonal flat-head section (244) has a lug (245) that can be connected to a sign.
10. The through pipe with self-filtering function used in the radiant floor heating pipe according to claim 1, characterized in that: The filter member (22) includes a cylindrical filter cartridge (221) and filter particles (222) filled in the cylindrical filter cartridge (221).
Citation Information
Patent Citations
Water inlet pipe fitting of floor heating water segregator
CN220017474U
Floor heating pipe
CN221780814U