CN217633874U

CN217633874U - Heating valve

Info

Publication number: CN217633874U
Application number: CN202221364639.4U
Authority: CN
Inventors: 毛福财; 刘言海
Original assignee: Taizhou Aidi Xishengda Tube Co ltd
Current assignee: Taizhou Aidi Xishengda Tube Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-21
Anticipated expiration: 2032-06-02

Abstract

The utility model provides a heating valve belongs to valve manufacturing technical field. It has solved the inconvenient scheduling problem of current heating valve connection. This heating valve includes the valve body, the case, the valve body has import and export, there is lock nut in the import of valve body through female connection, the inner wall of import has the portion of support, lock nut and support are equipped with the cutting ferrule between the portion of support, the cutting ferrule has the connecting hole that the axial is link up, the outer wall of cutting ferrule has the outer radial direction cutting ferrule distolateral undergauge gradually that is used for conflicting the conical surface one and the conical surface one of support portion, the cutting ferrule has the conflict portion that supplies lock nut to conflict, the inner wall of cutting ferrule inner has the protruding muscle that the radial is protruding in the round. The utility model has the advantages of convenient connection, good stability in use, long service life, etc.

Description

Heating valve

Technical Field

The utility model belongs to the technical field of the valve is made, in particular to heating valve.

Background

The heater valve is a regulating component in a heating supply system, and is widely used in the heating supply system. For example, chinese patent literature discloses a connection structure of a connection pipe and a valve body in a heating valve [ application number: 201220392402.7; authorization notice number: CN202812538U ], the valve body is internally provided with a cavity, the two ends of the valve body are provided with an inlet and an outlet which are communicated with the cavity, the connecting structure is positioned at the inlet and the outlet and comprises a connecting pipe, a connecting cap and a sealing ring, the connecting cap is connected to the inlet or the outlet of the valve body through threads, the outer side of the connecting pipe is provided with a convex retaining edge, the inner side of the connecting cap is provided with a convex shoulder, the retaining edge is tightly pressed between the convex shoulder and the inlet or the outlet of the valve body, and the sealing ring is positioned between the connecting pipe and the inlet or the outlet.

The connection structure of the connecting pipe and the valve body in the heater valve is used, the rotary connection cap drives the baffle edge on the connecting pipe to move towards the valve body by the aid of the convex shoulder on the connecting cap, the sealing ring is extruded, the connecting pipe and the valve body are connected and kept sealed, the connecting cap needs to be connected with a pipeline through an internal thread, connection is inconvenient, and the connection is firm and stable under the environments of vibration, ultrahigh pressure and ultrahigh vacuum.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a warm braw valve that connection is convenient, stability in use is good.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a heating valve, includes valve body, case, the valve body import and export have, its characterized in that, the import of valve body have lock nut through female connection, the inner wall of import has and supports to lean on the portion, lock nut and support and be equipped with the cutting ferrule between the portion, the cutting ferrule have the connecting hole that the axial link up, the outer wall of cutting ferrule have and be used for contradicting to support to lean on the portion conical surface one and the distolateral undergauge gradually in the outer radial cutting ferrule of conical surface one, the cutting ferrule has the conflict portion that supplies lock nut to contradict, the inner wall of cutting ferrule have the protruding muscle that the radial interior was protruding of round.

In the above heating valve, the abutting portion is a second conical surface arranged on the outer wall of the outer end of the cutting sleeve, the outer diameter of the second conical surface gradually shrinks towards the outer end side of the cutting sleeve, the locking nut is provided with an inner conical surface matched with the second conical surface, and the inner wall of the outer end of the cutting sleeve is provided with a plurality of annular clamping teeth.

In the above heating valve, the abutting portion is an inner conical surface fitted to the first conical surface.

In the above heating valve, the outlet of the valve body is inserted with a hollow pipe joint, the pipe joint and the outlet are sealed by a conical surface, a sealing ring sealed at the conical surface of the outlet is embedded at the conical surface of the pipe joint, the outer diameter of the pipe joint is provided with a convex shoulder protruding outwards in the radial direction, a movable joint cap is sleeved outside the pipe joint and provided with a blocking shoulder folded inwards, the valve body is connected with the movable joint cap through an external thread, the convex shoulder is positioned between the end part of the outlet and the blocking shoulder, a sealing gasket is embedded at the middle part of the pipe joint, and the outer wall of the outer end of the pipe joint is an external thread.

In the above-mentioned heating valve, the pipe joint overcoat have keep off the ring, the pipe joint has to support to lean on in keeping off the step of ring towards export side end face, keep off the ring and have the recess that supplies sealed pad embedding, the outer wall of sealed pad for conical surface and conical surface to sealed pad outer end side undergauge gradually.

In the above heating valve, the valve body has a liquid passing hole between the inlet and the outlet, the valve core is in threaded connection with the valve body, the inner end of the valve core is sealed in the liquid passing hole through a conical surface, two O-shaped rings sealed on the inner wall of the valve body are embedded in the valve core, the outer end of the valve core is provided with a hexagon socket, and the valve body is in threaded connection with a valve cover covering the valve core.

In the above heating valve, the edge of the end of the valve body, to which the valve cover is connected, has a necking portion riveted inward, and a rubber pad is arranged between the necking portion and the valve cover.

Compared with the prior art, this heating installation valve be convenient for the pipe connection, and firm in connection nature is good, and the leakproofness is good, can be applicable to in the environment of vibrations, superhigh pressure and super high vacuum, and stability in use is good, long service life.

Drawings

Fig. 1 is a sectional view showing the structure of the heater valve.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure, 1, a valve body; 2. a valve core; 3. an inlet; 4. an outlet; 5. locking the nut; 6. an abutting portion; 7. a ferrule; 8. a first conical surface; 9. a collision part; 10. a rib is protruded; 11. a second conical surface; 12. an inner conical surface; 13. clamping teeth; 14. a pipe joint; 15. a seal ring; 16. a shoulder is formed; 17. a detachable cap; 18. a shoulder block; 19. a gasket; 20. a baffle ring; 21. an O-shaped ring; 22. a valve cover; 23. a necking-in portion; 24. a rubber cushion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 3, this heating valve includes valve body 1, case 2, valve body 1 has import 3 and export 4, there is lock nut 5 in import 3 of valve body 1 through female connection, the inner wall of import 3 has support portion 6, be equipped with cutting ferrule 7 between lock nut 5 and the support portion 6, cutting ferrule 7 has the connecting hole that the axial is link up, cutting ferrule 7's outer wall has the conical surface that is used for contradicting support portion 6 one 8 and conical surface one 8 outside to cutting ferrule 7 inner end side and reduces gradually, cutting ferrule 7 has the conflict portion 9 that supplies lock nut 5 to contradict, cutting ferrule 7 inner wall has the protruding muscle 10 of radial inward protrusion of a circle.

This heating installation valve during the use, pass lock nut 5 with the pipeline, the connecting hole of cutting ferrule 7, conflict in the step that valve body 1 has until the tip of pipeline, later rotate lock nut 5, lock nut 5 conflicts conflict portion 9 of cutting ferrule 7, make cutting ferrule 7 to its inboard side displacement, support 6 oppression conical surface 8 to make the gradual throat in inner of cutting ferrule 7, cutting ferrule 7 cramps at the pipeline outer wall, and protruding muscle 10 is in order to lock in the pipeline outer wall under radial effort, accomplish the connection of pipeline like this, convenient connection, protruding muscle 10 has strengthened the frictional force between cutting ferrule 7 and the pipeline, firm in connection nature is good, anti-seismic capacity is strong, can guarantee vibrations, still can obtain effectual sealed effect of connection in the environment of superhigh pressure and super high vacuum, high durability and good stability, long service life.

In more detail, as shown in fig. 1 and fig. 2, the interference portion 9 is a second conical surface 11 formed on the outer wall of the outer end of the ferrule 7, an outer diameter of the second conical surface 11 gradually decreases toward the outer end of the ferrule 7, the locking nut 5 has an inner conical surface 12 matching the second conical surface 11, and the inner wall of the outer end of the ferrule 7 has three rings of annular latches 13. Locking nut 5 is through two 11 cooperations of interior conical surface 12 and conical surface for the gradual throat in cutting ferrule 7 outer end, cutting ferrule 7 outer end and pipe connection fastening, and interior conical surface 12 and two 11 formation conical surface of conical surface are sealed moreover, and the leakproofness between cutting ferrule 7 outer end and the locking nut 5 is good, and 13 cards of latch go into the pipeline outer wall in addition, have further improved the firm in connection nature of cutting ferrule 7 and pipeline, can avoid the junction pressurized to burst, and the stability in use is good. The abutting portion 6 is an inner conical surface matched with the first conical surface 8, when the clamping sleeve is connected, the gradual necking of the inner end of the clamping sleeve 7 is smooth, the abutting portion 6 and the first conical surface 8 are conical surface sealing, and the sealing performance between the inner end of the clamping sleeve 7 and the abutting portion 6 is good.

The outlet 4 of the valve body 1 is inserted with a hollow pipe joint 14, a conical surface is sealed between the pipe joint 14 and the outlet 4, a sealing ring 15 sealed at the conical surface of the outlet 4 is embedded at the conical surface of the pipe joint 14, the outer diameter of the pipe joint 14 is provided with a convex shoulder 16 protruding outwards in the radial direction, a movable joint cap 17 is sleeved outside the pipe joint 14, the movable joint cap 17 is provided with a stop shoulder 18 turning inwards, the valve body 1 is connected with the movable joint cap 17 through external threads, the convex shoulder 16 is positioned between the end part of the outlet 4 and the stop shoulder 18, a sealing gasket 19 is embedded at the middle part of the pipe joint 14, and the outer wall of the outer end of the pipe joint 14 is external threads. The sealing performance between the pipe joint 14 and the outlet 4 is good, the movable joint cap 17 enables the pipe joint 14 and the outlet 4 to be conveniently connected, and the sealing gasket 19 is used for being abutted against the end part of the pipeline in threaded connection with the pipe joint 14 to ensure the sealing performance; in actual manufacturing, the inner wall of the pipe joint 14 is provided with a hexagon socket hole, the pipe joint 14 is fixed by using a hexagon socket wrench, when the movable joint cap 17 is rotated, the pipe joint 14 cannot rotate, and the movable joint cap 17 is convenient to connect.

The pipe joint 14 is externally sleeved with a baffle ring 20, the pipe joint 14 is provided with a step which is abutted against the end face of the baffle ring 20 facing the outlet 4, the baffle ring 20 is provided with a groove for embedding the sealing gasket 19, and the outer wall of the sealing gasket 19 is a conical surface which is gradually reduced in diameter towards the outer end side of the sealing gasket 19. The baffle ring 20 provides support for the sealing gasket 19, and the conical surface of the sealing gasket 19 is used for the end part of the pipeline to abut against, so that the sealing effect of the sealing gasket 19 is good.

The valve body 1 is provided with a liquid passing hole between the inlet 3 and the outlet 4, the valve core 2 is in threaded connection with the valve body 1, the inner end of the valve core 2 is sealed in the liquid passing hole through a conical surface, the valve core 2 is embedded with two O-shaped rings 21 sealed on the inner wall of the valve body 1, the outer end of the valve core 2 is provided with an inner hexagonal hole, and the valve body 1 is in threaded connection with a valve cover 22 covering the valve core 2. When the liquid passing clearance between the valve core 2 and the liquid passing hole needs to be adjusted, the valve cover 22 is taken down and inserted into the hexagon socket hole of the valve core 2 through the hexagon socket wrench, then the valve core 2 is driven to rotate to adjust the liquid passing clearance, after the adjustment is completed, the valve cover 22 is screwed on the valve body 1 again, the valve cover 22 plays a role in protecting the valve core 2, and the error operation of non-professionals on the valve core 2 is avoided; the end edge of the valve body 1 for connecting the valve cover 22 is provided with a necking part 23 which is riveted inwards, and a rubber gasket 24 is arranged between the necking part 23 and the valve cover 22, so that the sealing property between the valve cover 22 and the valve body 1 is good, and the possibility of leakage is further reduced.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a heating valve, includes valve body (1), case (2), valve body (1) import (3) and export (4) have, its characterized in that, import (3) of valve body (1) have lock nut (5) through female connection, the inner wall of import (3) has support portion (6), lock nut (5) and support portion (6) between be equipped with cutting ferrule (7), cutting ferrule (7) have the connecting hole that the axial is link up, the outer wall of cutting ferrule (7) have the outer radial cutting ferrule (7) inner end side that is used for conflicting conical surface (8) and conical surface (8) of support portion (6) undergauge gradually, cutting ferrule (7) have conflict portion (9) that supply lock nut (5) to conflict, the inner wall in cutting ferrule (7) inner have radial protruding bead (10) of round.

2. The heating valve according to claim 1, wherein the interference portion (9) is a second conical surface (11) provided on the outer wall of the outer end of the ferrule (7), the outer diameter of the second conical surface (11) gradually decreases toward the outer end of the ferrule (7), the locking nut (5) has an inner conical surface (12) matching with the second conical surface (11), and the inner wall of the outer end of the ferrule (7) has a plurality of annular snap teeth (13).

3. A heating valve according to claim 2, characterised in that the abutment (6) is an internal taper which fits over the first taper (8).

4. The heating valve according to claim 3, characterized in that a hollow pipe joint (14) is inserted into the outlet (4) of the valve body (1), a conical surface is sealed between the pipe joint (14) and the outlet (4), a sealing ring (15) sealed at the conical surface of the outlet (4) is embedded at the conical surface of the pipe joint (14), a radially outward convex shoulder (16) is arranged on the outer diameter of the pipe joint (14), a movable joint cap (17) is sleeved outside the pipe joint (14), a baffle shoulder (18) turned inwards is arranged on the movable joint cap (17), the valve body (1) is connected with the movable joint cap (17) through external threads, the shoulder (16) is positioned between the end of the outlet (4) and the baffle shoulder (18), a sealing gasket (19) is embedded at the middle part of the pipe joint (14), and the outer wall of the outer end of the pipe joint (14) is external threads.

5. A heating valve according to claim 4, characterized in that the pipe connection (14) is externally provided with a retaining ring (20), the pipe connection (14) is provided with a step which is abutted against the end face of the retaining ring (20) facing the outlet (4), the retaining ring (20) is provided with a groove for embedding the sealing gasket (19), the outer wall of the sealing gasket (19) is a conical surface, and the conical surface gradually reduces towards the outer end side of the sealing gasket (19).

6. The heating valve according to claim 5, wherein the valve body (1) is provided with a liquid passing hole between the inlet (3) and the outlet (4), the valve core (2) is in threaded connection with the valve body (1), the inner end of the valve core (2) is sealed in the liquid passing hole through a conical surface, two O-shaped rings (21) sealed on the inner wall of the valve body (1) are embedded in the valve core (2), the outer end of the valve core (2) is provided with an inner hexagonal hole, and the valve body (1) is in threaded connection with a valve cover (22) for covering the valve core (2).

7. A heating valve according to claim 6, characterized in that the end edge of the valve body (1) to which the valve cover (22) is connected is provided with a necking portion (23) which is riveted inwards, and a rubber gasket (24) is arranged between the necking portion (23) and the valve cover (22).