Air conditioner pipe fitting water inlet connector
By using guide ring and annular step combination in the water inlet joint of air conditioning pipe fittings, combined with sealing ring and annular groove, the water storage and bubble problems caused by fluid impact in the prior art are solved, and the rapid inflow of fluid and stable work of the joint is achieved. , enhances compressive resistance and sealing properties.
Patent Information
- Application Number
- CN202420449090.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The water inlet joints of existing air conditioning pipe fittings are prone to deformation under the impact of fluid, resulting in the formation of water tanks, hindering water inlet and generating bubbles, and making processing inconvenient.
A structure including a water inlet pipe and a cylindrical joint body is designed, and the guide ring and annular step are used to cooperate. The inner diameter of the guide ring is greater than the inner diameter of the annular bottom wall. The introduction surface guides fluid to flow quickly into the water inlet pipe, combining the matching of the annular side wall and the guide ring. , enhance the sealing path and compressive resistance, and provide annular grooves and sealing rings on the inner wall of the joint body to enhance sealing.
It effectively avoids the generation of water and bubbles, ensures the rapid and smooth flow of fluid, improves the working stability and processing convenience of the joints, and enhances the compressive performance and sealing performance.
Smart Images
Figure CN222142288U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of air-conditioning accessories and relates to an air-conditioning pipe fitting, in particular to a water inlet joint of an air-conditioning pipe fitting. Background Art
[0002] The water inlet joint of the air conditioning pipe is a key component used to connect the air conditioning pipe with the water source.
[0003] The existing water inlet joint is a multi-way connecting pipe structure for air conditioners proposed by the applicant before (application number: 202020596275.7), which includes a water collecting pipe with both ends closed and a plurality of drainage pipes connected to the water collecting pipe. A water inlet elbow is also provided outside the water collecting pipe. The two ends of the water inlet elbow are respectively a water inlet end and a water outlet end. The water outlet end is connected to the water collecting pipe. The water inlet end has an external thread, and a joint is screwed at the external thread. A conical surface 1 is provided on the outer wall of the water inlet end, and a conical surface 2 matching the conical surface 1 is provided on the inner wall of the joint. , and the cone surface one and the cone surface two are in close contact, characterized in that an annular water guide portion coaxial with the water inlet end is integrally formed on the end surface of the water inlet end, and the cone surface one extends to the annular water guide portion, the cross-section of the annular water guide portion in the axial direction of the water inlet end is a right triangle, the inner side wall and the outer side wall of the annular water guide portion are cone surface three and the outer circumferential surface respectively, and the inner wall of the joint has an inner circumferential surface that is closely attached to the outer circumferential surface, the diameter of the cone surface three gradually decreases from the water inlet end to the water outlet end, and the cone surface three extends to the inner wall of the water inlet end.
[0004] The above-mentioned connecting pipe reduces water storage by sharpening the annular water guide part, but the sharper the annular water guide part is, the more inconvenient it is to process, and the pressure resistance will become weaker and weaker, and it is easy to deform and distort under the impact of fluid to form a water storage groove. The existence of the water storage groove not only hinders water inlet, but also generates bubbles. Utility Model Content
[0005] The utility model aims to solve the above problems in the prior art and proposes a water inlet joint for air-conditioning pipes with stable structure.
[0006] The purpose of the utility model can be achieved through the following technical solutions: an air-conditioning pipe water inlet joint, comprising an inlet pipe and a cylindrical joint body, the rear end of the joint body is screwed onto the outside of the front end of the water inlet pipe, the inner wall of the front end of the joint body and the outer wall of the water inlet pipe are contacted and matched through a conical surface, and is characterized in that a circular guide ring is formed on the front end surface of the water inlet pipe, and the guide ring is coaxially arranged with the water inlet pipe; an annular step matching the guide ring is provided on the inner wall of the joint body, the annular step is composed of an annular side wall and an annular bottom wall, the guide ring is inserted into the annular step and pressed on the annular bottom wall, and the inner diameter of the guide ring is larger than the inner diameter of the annular bottom wall; the inner side surface of the guide ring is connected to the inner side surface of the water inlet pipe through a conical introduction surface, and the diameter of the introduction surface gradually decreases from front to back.
[0007] The inner diameter of the guide ring is set to be larger than the inner diameter of the annular bottom wall, so that the fluid entering from the front port of the connector body directly impacts the introduction surface and flows rapidly backward into the water inlet pipe under the guidance of the introduction surface, effectively avoiding water accumulation and reducing the generation of bubbles.
[0008] The application enables the fluid to flow into the water inlet pipe quickly and smoothly with the cooperation of the introduction surface, the annular step and the guide ring, and the above-mentioned components will basically not be deformed under the impact of the fluid, and has the advantages of stable operation and easy processing.
[0009] In the above-mentioned air-conditioning pipe water inlet joint, the above-mentioned annular side wall matches the outer circumferential surface of the guide ring and the two are attached together, which not only effectively supports the guide ring in the radial direction and enhances the compressive strength of the guide ring, but also strengthens the sealing path formed between the water inlet pipe and the joint body, further ensuring the stable operation of the joint.
[0010] In the above-mentioned air-conditioning pipe water inlet joint, the conical surface on the water inlet pipe extends to the outer side surface of the guide ring. At this time, the conical surface and the guide surface cooperate to form a roughly trapezoidal structure to more stably support the guide ring in the axial direction and further enhance the compressive resistance of the guide ring.
[0011] In the above-mentioned air-conditioning pipe water inlet joint, the water inlet pipe is a cast integral part, which is not only easy to process but also can further enhance the strength of the guide ring.
[0012] In the above-mentioned air-conditioning pipe water inlet joint, an annular groove coaxial with the joint body is provided on the inner wall of the joint body, and the rear side of the conical surface on the joint extends to the annular groove; a sealing ring is provided in the annular groove, and the inner and outer side walls of the sealing ring are respectively in contact and sealed with the outer side wall of the water inlet pipe and the bottom wall of the annular groove, so as to further enhance the sealing performance formed between the joint body and the water inlet pipe, thereby ensuring stable operation of the water inlet joint.
[0013] In the above-mentioned air conditioning pipe water inlet joint, a protrusion is formed on the outer wall of the rear end of the water inlet pipe, the length of the protrusion extends radially along the water inlet pipe, and a bolt hole axially penetrates the protrusion to facilitate the overall positioning of the water inlet joint.
[0014] In the above-mentioned water inlet joint of the air-conditioning pipe, there are two protrusions which are symmetrically arranged along the center of the water inlet pipe, and each protrusion is provided with the above-mentioned bolt hole to further enhance the positioning stability of the water inlet joint.
[0015] Compared with the prior art, the water inlet joint of the air conditioner pipe has the following advantages:
[0016] 1. Set the inner diameter of the guide ring larger than the inner diameter of the annular bottom wall, so that the fluid entering from the front port of the joint body directly impacts the introduction surface, and quickly flows backward into the water inlet pipe under the guidance of the introduction surface, effectively avoiding water accumulation and reducing the generation of bubbles.
[0017] 2. With the cooperation of the introduction surface, the annular step and the guide ring, the present application enables the fluid to flow into the water inlet pipe quickly and smoothly, and the above-mentioned components will basically not be deformed under the impact of the fluid, and has the advantages of stable operation and easy processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a usage status diagram of the water inlet joint of this air conditioning pipe fitting.
[0019] Figure 2 It is a cross-sectional schematic diagram of the water inlet joint of the air-conditioning pipe fitting.
[0020] Figure 3 It is a structural schematic diagram of the connector body.
[0021] In the figure, 1, water inlet pipe; 1a, guide ring; 1b, protrusion; 1b1, bolt hole; 1c, introduction surface; 2, joint body; 2a, annular side wall; 2b, annular bottom wall; 2c, annular groove; 3, sealing ring. DETAILED DESCRIPTION
[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0023] like Figure 1 and Figure 2 As shown, the water inlet joint of the air-conditioning pipe fitting comprises a water inlet pipe 1 and a cylindrical joint body 2, the rear end of the joint body 2 is threadedly connected to the outside of the front end of the water inlet pipe 1, and the inner wall of the front end of the joint body 2 and the outer wall of the water inlet pipe 1 are contacted and matched through a conical surface, that is, at this time, an internal thread is provided on the inner wall of the joint body 2, and an external thread matching the internal thread is provided on the outer wall of the water inlet pipe 1; both the inner wall of the joint body 2 and the outer wall of the water inlet pipe 1 are provided with conical surfaces, the two conical surfaces match each other and stick together, and the conical surfaces are on the front side of the external threads.
[0024] Specifically,
[0025] like Figure 2 and Figure 3 As shown, a guide ring 1a in the shape of a circular ring is integrally formed on the front end face of the water inlet pipe 1, and the guide ring 1a is coaxially arranged with the water inlet pipe 1. An annular step matching the guide ring 1a is provided on the inner wall of the joint body 2, and the annular step is coaxially arranged with the joint body 2. Among them, the annular step is composed of an annular side wall 2a and an annular bottom wall 2b, and the annular side wall 2a and the annular bottom wall 2b are vertically arranged. The guide ring 1a is inserted into the annular step and pressed on the annular bottom wall 2b, and the inner diameter of the guide ring 1a is larger than the inner diameter of the annular bottom wall 2b. The inner side surface of the guide ring 1a is connected to the inner side surface of the water inlet pipe 1 through a conical introduction surface 1c, and the diameter of the introduction surface 1c gradually decreases from front to back.
[0026] The inner diameter of the guide ring 1a is set larger than the inner diameter of the annular bottom wall 2b, so that the fluid entering from the front port of the connector body 2 directly impacts the introduction surface 1c and flows rapidly backward into the water inlet pipe 1 under the guidance of the introduction surface 1c, effectively avoiding water accumulation and reducing the generation of bubbles.
[0027] The application enables the fluid to flow into the water inlet pipe 1 quickly and smoothly with the cooperation of the introduction surface 1c, the annular step and the guide ring 1a, and the above-mentioned components will basically not be deformed under the impact of the fluid, and has the advantages of stable operation and convenient processing.
[0028] Further explanation: the annular side wall 2a matches the outer circumference of the guide ring 1a and the two are attached together, which not only effectively supports the guide ring 1a in the radial direction and enhances the compressive strength of the guide ring 1a, but also strengthens the sealing path formed between the water inlet pipe 1 and the joint body 2, further ensuring the stable operation of the joint. The conical surface on the water inlet pipe 1 extends to the outer side of the guide ring 1a. At this time, the conical surface and the introduction surface 1c cooperate to form a roughly trapezoidal structure to more stably support the guide ring 1a in the axial direction and further enhance the compressive performance of the guide ring 1a.
[0029] like Figure 2 and Figure 3 As shown, an annular groove 2c coaxial with the joint body 2 is provided on the inner wall of the joint body 2, the annular groove 2c is between the conical surface and the external thread, and the conical surface on the joint extends to the annular groove 2c. A sealing ring 3 is provided in the annular groove 2c, and the inner and outer side walls of the sealing ring 3 are in contact and sealed with the outer side wall of the water inlet pipe 1 and the bottom wall of the annular groove 2c, respectively, so as to further strengthen the sealing performance formed between the joint body 2 and the water inlet pipe 1, and ensure the stable operation of the water inlet joint.
[0030] like Figure 1 and Figure 2 As shown, a protrusion 1b is formed on the outer wall of the rear end of the water inlet pipe 1, and the length of the protrusion 1b extends radially along the water inlet pipe 1, and a bolt hole 1b1 is axially penetrated on the protrusion 1b to facilitate the overall positioning of the water inlet joint. Preferably, there are two protrusions 1b and they are symmetrically arranged along the center of the water inlet pipe 1, and each protrusion 1b is provided with the above-mentioned bolt hole 1b1 to further enhance the positioning stability of the water inlet joint.
[0031] In actual products, the water inlet pipe 1 is a cast integral part, which is not only easy to process, but also can further enhance the strength of the guide ring 1a.
[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An air conditioning pipe water inlet joint, comprising a water inlet pipe (1) and a cylindrical joint body (2), wherein the rear end of the joint body (2) is screwed onto the front end of the water inlet pipe (1), and the inner wall of the front end of the joint body (2) and the outer wall of the water inlet pipe (1) are in contact with each other through a conical surface, characterized in that: A guide ring (1a) in the shape of a ring is formed on the front end surface of the water inlet pipe (1), and the guide ring (1a) is coaxially arranged with the water inlet pipe (1); an annular step matching the guide ring (1a) is provided on the inner wall of the joint body (2), the annular step being composed of an annular side wall (2a) and an annular bottom wall (2b); the guide ring (1a) is inserted into the annular step and pressed on the annular bottom wall (2b), and the inner diameter of the guide ring (1a) is larger than the inner diameter of the annular bottom wall (2b); the inner side surface of the guide ring (1a) is connected to the inner side surface of the water inlet pipe (1) via a tapered introduction surface (1c), and the diameter of the introduction surface (1c) gradually decreases from front to back.
2. The air conditioning pipe water inlet joint according to claim 1, characterized in that: The annular side wall (2a) matches the outer peripheral surface of the guide ring (1a) and the two are attached together.
3. The water inlet joint of the air conditioner pipe according to claim 2, characterized in that: The conical surface on the water inlet pipe (1) extends to the outer side surface of the guide ring (1a).
4. The air conditioning pipe water inlet joint according to claim 1, 2 or 3, characterized in that: The water inlet pipe (1) is a cast integral part.
5. The water inlet joint for air conditioning pipe fittings according to claim 1, characterized in that: An annular groove (2c) coaxial with the joint body (2) is provided on the inner wall of the joint body (2), and the rear side of the conical surface on the joint extends to the annular groove (2c); a sealing ring (3) is provided in the annular groove (2c), and the inner and outer side walls of the sealing ring (3) are in contact and sealed with the outer side wall of the water inlet pipe (1) and the bottom wall of the annular groove (2c) respectively.
6. The water inlet joint for air conditioning pipe fittings according to claim 1, characterized in that: A protrusion (1b) is formed on the outer wall of the rear end of the water inlet pipe (1); the length of the protrusion (1b) extends radially along the water inlet pipe (1), and a bolt hole (1b1) axially penetrates the protrusion (1b).
7. The water inlet joint for air conditioning pipe according to claim 6, characterized in that: There are two protrusions (1b) which are symmetrically arranged along the center of the water inlet pipe (1), and each protrusion (1b) is provided with the above-mentioned bolt hole (1b1).