Rotor wing wet type cold water meter sealing connection structure
By setting up a socket structure and sealing ring at the water inlet pipe and interface of the rotor wet cold water meter, the problem of reducing sealing properties caused by aging of the sealing tape in the prior art is solved, and an efficient and long-lasting sealing effect is achieved.
Patent Information
- Application Number
- CN202422851267.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The sealing connection method of existing rotor wet cold water meters relies on sealing tape, which causes the sealing property to decrease with the aging and damage of the tape, which requires regular replacement and inconvenient operation.
A plug-in structure with a socket structure arranged on the corresponding sides of the water inlet pipe and water inlet interface, the water outlet pipe and the water outlet interface is adopted, and a sealing ring is set at the end of the cannula, and sealing is achieved by the interference deformation of the sealing ring and the socket groove.
It realizes efficient sealing of the inlet and outlet interface of the rotor wet cold water meter, reducing the frequency of replacement of sealing materials, and making operation simple and fast.
Smart Images
Figure CN223019696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cold water meter connection, in particular to a sealing connection structure for a rotary wet cold water meter. Background Technique
[0002] In modern water supply systems, rotary wet cold water meters are a commonly used cold water metering structure. When a rotary wet cold water meter is connected to a cold water pipe, flange joints are mainly used for connection. In order to maintain sealing, at present, the method of winding sealing tape at the flange connection position is mainly adopted to improve the sealing performance of the rotary wet cold water meter. However, in this connection method, the flange joint position highly depends on the sealing tape to fill the gaps between the threads. Although water leakage will not occur in a short time, with the increase in the number of repairs, problems such as tape aging and damage will occur. Not only is the sealing performance poor, but it also needs to be replaced regularly, which is inconvenient to operate. In view of this, in-depth research on the above problems has led to the generation of this case. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a sealing connection structure for a rotary wet cold water meter, which solves the problems in the existing background technology.
[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A sealing connection structure for a rotary wet cold water meter, including a cold water meter housing, an inlet interface and an outlet interface are arranged on the cold water meter housing, a water inlet pipe and a water outlet pipe are connected to the inlet interface and the outlet interface respectively, and a pair of sealing connection structures are arranged between the water inlet pipe and the inlet interface and between the water outlet pipe and the outlet interface;
[0005] The sealing connection structure includes a fastening sleeve, the outer part of the water inlet pipe is sleeved with the fastening sleeve, docking sleeves are arranged in a ring array on the fastening sleeve, a telescopic groove is coaxially opened on the docking sleeve, and a socket sleeve groove is axially penetrated through the fastening sleeve;
[0006] The sealing connection structure further includes a fixing sleeve, the fixing sleeve extends from the inlet interface, a number of docking rods are arranged in a ring array on the fixing sleeve corresponding to the positions of a number of tension sleeves, an insertion pipe extends from the fixing sleeve, and a sealing coil is integrally connected to the head end of the insertion pipe;
[0007] The docking rod is externally threaded with a reverse pull nut, and the reverse pull nut contacts the docking sleeve;
[0008] The insertion pipe is inserted into the socket sleeve groove and the sealing coil is in interference fit with the inner wall of the socket sleeve groove;
[0009] The sealing rubber ring is of an annular structure, and the hardness of the material of the inner ring of the sealing rubber ring is greater than that of the material of the outer ring.
[0010] Preferably, the inner diameters of the telescopic grooves of several of the docking rods and several of the docking sleeves are matched.
[0011] Preferably, a buffer washer is sleeved outside the docking rod, and an annular groove is provided at the end of the fastening sleeve corresponding to the docking sleeve, and the buffer washer corresponds to the annular groove.
[0012] Preferably, the tail end of the socket sleeve groove is a truncated conical structure, and the narrow diameter end of the socket sleeve groove is matched with the inner diameter of the water inlet pipe.
[0013] Preferably, the cold water meter housing is integrally formed with the water inlet interface and the water outlet interface.
[0014] Preferably, the fastening sleeve is integrally formed with the end of the water inlet pipe. Beneficial effects
[0015] The utility model provides a sealing connection structure for a rotary vane wet cold water meter, which has the following beneficial effects: the sealing connection structure for the rotary vane wet cold water meter is provided with a socket structure of a socket and spigot structure on the corresponding sides of the water inlet pipe, the water inlet interface, the water outlet pipe and the water outlet interface, and a sealing rubber ring is arranged at the end of the spigot. By using the interference deformation of the sealing rubber ring and the socket sleeve groove, the sealing treatment of the water inlet interface and the water outlet interface of the rotary vane wet cold water meter is realized. The sealing rubber ring and the socket sleeve groove are installed by sleeving, and the installation is convenient and fast. Description of the drawings
[0016] Figure 1 is the first three-dimensional structure schematic diagram of the sealing connection structure for a rotary vane wet cold water meter described in the utility model.
[0017] Figure 2 is the second three-dimensional structure schematic diagram of the sealing connection structure for a rotary vane wet cold water meter described in the utility model.
[0018] Figure 3 is the third three-dimensional structure schematic diagram of the sealing connection structure for a rotary vane wet cold water meter described in the utility model.
[0019] In the figure: 1. Cold water meter housing; 2. Water inlet interface; 3. Water outlet interface; 4. Water inlet pipe; 5. Water outlet pipe; 6. Fastening sleeve; 7. Docking sleeve; 8. Socket sleeve groove; 9. Fixed sleeve; 10. Docking rod; 11. Spigot; 12. Sealing coil; 13. Reverse pull nut; 14. Buffer washer; 15. Annular groove. Detailed implementation manners
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1-3 , the present invention provides an implementation scheme: in the application process of modern rotary wet cold water meters, the connection between the rotary wet cold water meter and the water inlet pipe 4 or the water outlet pipe 5 mostly adopts flange connection. In order to maintain the sealing performance, the main method is to use winding sealing tape for sealing. Due to problems such as aging, this sealing method needs to be replaced regularly and is prone to leakage.
[0022] In view of the above problems, according to the attached Figures 1-3 to the specification, it can be known that the present application discloses a sealed connection structure for a rotary wet cold water meter, including a cold water meter housing 1. The cold water meter housing 1 is the external protection and support structure of the rotary wet cold water meter. An inlet interface 2 and an outlet interface 3 are provided on the cold water meter housing 1. A water inlet pipe 4 and a water outlet pipe 5 are connected to the inlet interface 2 and the outlet interface 3. The water inlet pipe 4 and the water outlet pipe 5 form a cold water pipeline. A pair of sealed connection structures are provided between the water inlet pipe 4 and the inlet interface 2 and between the water outlet pipe 5 and the outlet interface 3. The pair of sealed connection structures can quickly realize the connection between the water inlet pipe 4 and the water outlet pipe 5 and the inlet joint and the outlet joint, facilitating the use of the water inlet pipe 4 and the cold water pipeline;
[0023] According to the attached Figures 1-3 to the specification, it can be known that the above-mentioned sealed connection structure includes a fastening sleeve 6. The fastening sleeve 6 is sleeved outside the water inlet pipe 4. Abutting sleeves 7 are arranged in a circumferential array on the fastening sleeve 6. A telescopic groove is coaxially opened on the abutting sleeve 7. A socket sleeve groove 8 is axially penetrated through the fastening sleeve 6. In the specific implementation process, the fastening sleeve 6 is integrally connected with the water inlet pipe 4. A socket sleeve groove 8 is arranged at the axis core of the fastening sleeve 6. Through the socket sleeve groove 8 as the connection of the inlet interface 2, after the water inlet pipe 4 and the inlet interface 2 are butted, the inner wall of the cold water meter housing 1 is smoothly transitioned;
[0024] According to the attached Figures 1-3 to the specification, it can be known that the above-mentioned sealed connection structure further includes a fixing sleeve 9. The fixing sleeve 9 extends from the inlet interface 2. A number of abutting rods 10 are arranged in a circumferential array on the fixing sleeve 9 corresponding to a number of opposing sleeves. A plug tube 11 extends from the fixing sleeve 9. A sealing coil 12 is integrally connected to the head end of the plug tube 11;
[0025] In the specific implementation process, the fixed sleeve 9 is integrally provided with the water inlet interface 2. The docking rod 10 is externally threaded with a reverse pull nut 13. The reverse pull nut 13 contacts the docking sleeve 7. The pulling effect of the reverse pull nut 13 and the docking rod 10 causes the fixed sleeve 9 and the fastening sleeve 6 to form a reverse pull, so that the insertion tube 11 is inserted into the socket sleeve groove 8. The telescopic groove matches the diameter of the docking rod 10. The telescopic groove is used to guide and limit the docking rod 10 to prevent the docking rod 10 from shaking radially. Further, the insertion tube 11 is inserted into the socket sleeve groove 8 and the sealing coil 12 is in interference fit with the inner wall of the socket sleeve groove 8. The insertion tube 11 and the socket sleeve groove 8 are used for limiting to play a sealing role. The sealing rubber ring is of an annular structure. The hardness of the inner ring material of the sealing rubber ring is greater than that of the outer ring material. The material outside the sealing rubber ring is softer. When the insertion tube 11 is inserted into the bottom of the socket sleeve groove 8, the deformation of the outside of the insertion tube 11 is used to block the sealing rubber ring outside the socket sleeve groove 8.
[0026] As a preferred solution, further, the inner diameters of the telescopic grooves of several docking rods 10 and several docking sleeves 7 match, playing a role in guiding and limiting.
[0027] As a preferred solution, further, a buffer washer 14 is sleeved outside the docking rod 10. A ring groove 15 is provided at the end of the fastening sleeve 6 corresponding to the docking sleeve 7. The buffer washer 14 corresponds to the ring groove 15. The ring groove 15 and the buffer sleeve ring cooperate to form an external wrapping seal for the docking rod 10.
[0028] As a preferred solution, further, the tail end of the socket sleeve groove 8 is of a truncated cone structure, and the narrow diameter end of the socket sleeve groove 8 matches the inner diameter of the water inlet pipe 4.
[0029] As a preferred solution, further, the cold water meter housing 1, the water inlet interface 2 and the water outlet interface 3 are integrally formed, and the structural strength is relatively high.
[0030] As a preferred solution, further, the fastening sleeve 6 and the end of the water inlet pipe 4 are integrally formed.
[0031] In summary, generally speaking, for this sealing connection structure of the rotary wet cold water meter, by providing a socket structure with a socket and spigot structure on the corresponding sides of the water inlet pipe 4, the water inlet interface 2, the water outlet pipe 5 and the water outlet interface 3, and a sealing rubber ring is provided at the end of the insertion tube 11. Using the interference deformation of the sealing rubber ring and the socket sleeve groove 8, the sealing treatment of the water inlet interface 2 and the water outlet interface 3 of the rotary wet cold water meter is realized. The sealing rubber ring and the socket sleeve groove 8 are installed by sleeving, and the installation is convenient and fast.
[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A rotary vane wet cold water meter sealing connection structure, comprising a cold water meter housing (1), the cold water meter housing (1) being provided with a water inlet interface (2) and a water outlet interface (3), the water inlet interface (2) and the water outlet interface (3) being connected with a water inlet pipe (4) and a water outlet pipe (5), characterized in that: A pair of sealing connection structures are provided between the water inlet pipe (4) and the water inlet interface (2), and between the water outlet pipe (5) and the water outlet interface (3); The sealing connection structure comprises a fastening sleeve (6), the outer sleeve of the water inlet pipe (4) is provided with the fastening sleeve (6), the fastening sleeve (6) is provided with docking sleeves (7) arranged in a ring array on the fastening sleeve (6), the docking sleeve (7) is provided with a telescopic groove coaxially, and the fastening sleeve (6) is provided with a socket sleeve groove (8) extending through the axis thereof; The sealing connection structure further comprises a fixing sleeve (9), the fixing sleeve (9) extending from the water inlet interface (2), a plurality of docking rods (10) arranged in a ring array on the fixing sleeve (9) corresponding to the positions of the plurality of pull sleeves, an inserting tube (11) extending from the fixing sleeve (9), and a sealing coil (12) being integrally connected to the head end of the inserting tube (11); The butt joint rod (10) is externally threadedly connected with a pull-back nut (13), and the pull-back nut (13) is in contact with the butt joint sleeve (7); The insert pipe (11) is inserted into the socket sleeve groove (8) and the sealing ring (12) and the inner wall of the socket sleeve groove (8) are interference fit; The sealing rubber ring is an annular structure, and the hardness of the inner ring material of the sealing rubber ring is greater than the hardness of the outer ring material.
2. A rotary vane wet cold water meter sealing connection structure according to claim 1, characterized in that: The inner diameters of the telescopic grooves of the plurality of docking rods (10) and the plurality of docking sleeves (7) match each other.
3. A rotary vane wet cold water meter sealing connection structure according to claim 2, characterized in that: The outer sleeve of the docking rod (10) is provided with a buffer washer (14), and the end of the fastening sleeve (6) is provided with an annular groove (15) corresponding to the docking sleeve (7), and the buffer washer (14) corresponds to the annular groove (15).
4. A rotary vane wet cold water meter sealing connection structure according to claim 3, characterized in that: The tail end of the bell sleeve groove (8) is a truncated cone structure, and the narrow diameter end of the bell sleeve groove (8) matches the inner diameter of the water inlet pipe (4).
5. A rotary vane wet cold water meter sealing connection structure according to claim 4, characterized in that: The cold water meter housing (1), the water inlet interface (2) and the water outlet interface (3) are integrally formed.
6. A rotary vane wet cold water meter sealing connection structure according to claim 5, characterized in that: The fastening sleeve (6) and the end of the water inlet pipe (4) are integrally formed.