Temperature difference circulation heating full-automatic electric valve

Abstract

The temperature difference circulation heating full-automatic electric valve comprises a valve body, a valve cover is installed at the top end of the valve body, a liquid outlet valve port is formed in the outer wall of one side of the valve body, a first lower internal thread is arranged on the inner wall of the liquid outlet valve port, and a liquid inlet valve port is formed in the outer wall of the side, away from the liquid outlet valve port, of the valve body. Second lower internal threads are arranged on the inner wall of the liquid inlet valve port, an in-valve channel is formed in the valve body, a lifting driving piece is installed at the top end of the valve deck, the bottom end of the lifting driving piece extends into the valve deck and is provided with a valve element, the outer wall of the valve element makes contact with the inner wall of the valve deck, and a pressure relief base is arranged at the top end of the liquid inlet valve port. A plugging head is installed in the pressure relief seat, and the top end of the plugging head extends out of the pressure relief seat. According to the electric valve, the purpose of relieving pressure of the electric valve is achieved, potential safety hazards of the electric valve are eliminated, the purpose of easily detaching and maintaining the electric valve is achieved, and the electric valve is easily installed and connected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to a full-automatic electric valve for temperature difference circulation heating. Background Art

[0002] Simply put, an electric valve uses an electric actuator to control the valve, thereby realizing the opening and closing of the valve. In the temperature difference circulation heating system, in order to control the opening and closing of the pipeline, the corresponding fully automatic electric valve is required.

[0003] Reference publication number CN213236253U is a fully automatic electric valve, which includes a valve body, a valve core and a motor. The motor is connected to the valve core through a coupling structure and drives the valve core to move up and down, thereby opening or closing the valve; the coupling structure includes a threaded rod and a lifting block, the threaded rod is screwed in the lifting block, and the threaded rod is driven by the motor to rotate, thereby causing the lifting block to move up and down along the axial direction, and the lifting block is connected to the valve core, thereby causing the valve core to move up and down; a circuit control device is also provided on the valve body. The fully automatic electric valve can realize a full range of automatic control functions, extend its service life, and realize functional diversification according to actual use requirements. According to the above, although the electric valve can be well applied, it is usually not convenient to perform pressure relief treatment, which makes it easy for the electric valve to have safety hazards due to excessive pressure. In addition, it is not convenient to disassemble and maintain the electric valve, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a fully automatic electric valve for temperature difference circulation heating, so as to solve the problem in the above background technology that although the electric valve can be well applied, it is usually not convenient to carry out pressure relief treatment, which makes the electric valve prone to safety hazards due to excessive pressure, and it is not convenient to disassemble and maintain the electric valve.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a fully automatic electric valve for temperature differential circulation heating, comprising a valve body, a valve cover is installed on the top of the valve body, a liquid outlet valve port is arranged on the outer wall of one side of the valve body, a first lower internal thread is arranged on the inner wall of the liquid outlet valve port, a liquid inlet valve port is arranged on the outer wall of the valve body away from the liquid outlet valve port, a second lower internal thread is arranged on the inner wall of the liquid inlet valve port, an inner valve channel is arranged inside the valve body, a lifting drive member is installed on the top of the valve cover, the bottom end of the lifting drive member extends to the interior of the valve cover and is provided with a valve core, the outer wall of the valve core touches the inner wall of the valve cover, a pressure relief seat is arranged on the top of the liquid inlet valve port, a sealing head is installed inside the pressure relief seat, and the top of the sealing head extends to the outside of the pressure relief seat.

[0006] Preferably, threaded seats with equal spacing are arranged on the outer wall of the valve body, and pin seats with equal spacing are arranged on the outer wall of the valve cover, so that locking bolts can be placed through the arrangement of the pin seats and the threaded seats.

[0007] Preferably, a locking bolt is installed at the top of the pin seat, and the bottom end of the locking bolt passes through the pin seat and is threadedly connected to the threaded seat. The electric valve can be disassembled and maintained by screwing the lower end of the locking bolt out to the outside of the threaded seat.

[0008] Preferably, an upper internal thread is provided on the inner wall of the upper end of the pressure relief seat, and an upper external thread is provided on the outer wall of the lower end of the sealing head. The upper external thread and the upper internal thread cooperate with each other, and the lower end of the sealing head can be installed inside the pressure relief seat through the setting of the upper external thread and the upper internal thread.

[0009] Preferably, a second pressure relief through hole is arranged inside the pressure relief seat, and a first pressure relief through hole is arranged inside the liquid inlet valve port at the position of the second pressure relief through hole, so that the interior of the valve body can be pressure-relieved by arranging the second pressure relief through hole and the first pressure relief through hole.

[0010] Preferably, a sealing ring is provided on the outer wall of the plugging head above the upper external thread, and the outer wall of the sealing ring touches the inner wall of the pressure relief seat. The sealing ring is provided to seal the connection position between the plugging head and the pressure relief seat.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the temperature difference circulation heating fully automatic electric valve not only achieves the purpose of pressure relief of the electric valve to eliminate the potential safety hazards of the electric valve, but also achieves the purpose of easy disassembly and maintenance of the electric valve, and is easy to install and connect the electric valve;

[0012] (1) By rotating the plugging head, the lower end of the plugging head is screwed out to the outside of the pressure relief seat. Due to the arrangement of the second pressure relief through hole and the first pressure relief through hole, the internal pressure of the valve body can be discharged through the first pressure relief through hole and the second pressure relief through hole, thereby achieving the purpose of pressure relief of the electric valve, thereby eliminating the safety hazards of the electric valve;

[0013] (2) By rotating the locking bolt so that the locking bolt is located inside the pin seat and rotates, and screwing the lower end of the locking bolt out to the outside of the threaded seat, the valve cover can be pulled to be removed from the top of the valve body, thereby achieving the purpose of facilitating the disassembly and maintenance of the electric valve;

[0014] (3) By setting the first lower internal thread and the second lower internal thread, the threaded end of the external pipe can be threadedly installed on the liquid inlet valve port and the liquid outlet valve port respectively, so that the electric valve can be easily installed and connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 4 It is a side structural schematic diagram of the utility model.

[0019] In the figure: 1. valve body; 2. valve cover; 3. threaded seat; 4. pin seat; 5. locking bolt; 6. liquid inlet valve port; 7. liquid outlet valve port; 8. first lower internal thread; 9. lifting drive member; 10. plugging head; 11. second lower internal thread; 12. valve inner channel; 13. valve core; 14. pressure relief seat; 15. first pressure relief through hole; 16. second pressure relief through hole; 17. upper internal thread; 18. upper external thread; 19. sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a temperature difference circulation heating fully automatic electric valve, comprising a valve body 1, the outer wall of the valve body 1 is provided with threaded seats 3 with equal spacing, and the outer wall of the valve cover 2 is provided with pin seats 4 with equal spacing;

[0022] When in use, the locking bolt 5 is arranged by the arrangement of the pin seat 4 and the threaded seat 3;

[0023] A locking bolt 5 is installed at the top of the pin seat 4, and the bottom end of the locking bolt 5 passes through the pin seat 4 and is threadedly connected with the threaded seat 3;

[0024] When in use, the electric valve can be disassembled and maintained by screwing the lower end of the locking bolt 5 out of the threaded seat 3;

[0025] A valve cover 2 is installed at the top of the valve body 1, a liquid outlet valve port 7 is provided on the outer wall of one side of the valve body 1, a first lower internal thread 8 is provided on the inner wall of the liquid outlet valve port 7, a liquid inlet valve port 6 is provided on the outer wall of the valve body 1 away from the liquid outlet valve port 7, a second lower internal thread 11 is provided on the inner wall of the liquid inlet valve port 6, an inner valve passage 12 is provided inside the valve body 1, a lifting drive member 9 is installed at the top of the valve cover 2, the bottom end of the lifting drive member 9 extends to the inside of the valve cover 2 and is provided with a valve core 13, the outer wall of the valve core 13 touches the inner wall of the valve cover 2, a pressure relief seat 14 is provided at the top of the liquid inlet valve port 6, an upper internal thread 17 is provided on the inner wall of the upper end of the pressure relief seat 14, an upper external thread 18 is provided on the outer wall of the lower end of the plugging head 10, and the upper external thread 18 and the upper internal thread 17 cooperate with each other;

[0026] When in use, the lower end of the plugging head 10 is installed inside the pressure relief seat 14 through the arrangement of the upper external thread 18 and the upper internal thread 17;

[0027] A sealing ring 19 is provided on the outer wall of the plugging head 10 above the upper external thread 18, and the outer wall of the sealing ring 19 contacts the inner wall of the pressure relief seat 14;

[0028] When in use, the sealing ring 19 is provided to seal the connection between the plugging head 10 and the pressure relief seat 14;

[0029] A second pressure relief through hole 16 is provided inside the pressure relief seat 14, and a first pressure relief through hole 15 is provided inside the liquid inlet valve port 6 at the position of the second pressure relief through hole 16;

[0030] When in use, the second pressure relief through hole 16 and the first pressure relief through hole 15 are provided to relieve pressure inside the valve body 1;

[0031] A plugging head 10 is installed inside the pressure relief seat 14 , and a top end of the plugging head 10 extends to the outside of the pressure relief seat 14 .

[0032] When the embodiment of the present application is used, firstly, the threaded ends of the external pipe can be threadedly installed on the liquid inlet valve port 6 and the liquid outlet valve port 7 respectively through the arrangement of the first lower internal thread 8 and the second lower internal thread 11, so as to facilitate the installation and connection of the electric valve, and then the valve core 13 is driven to rise and fall by the lifting drive member 9, so that the upper end of the valve inner channel 12 can be opened and closed by the valve core 13, so as to electrically control the electric valve to perform the opening and closing operation, and then the lower end of the plugging head 10 is screwed out to the pressure relief seat 1 by rotating the plugging head 10. 4, due to the arrangement of the second pressure relief through hole 16 and the first pressure relief through hole 15, the internal pressure of the valve body 1 can be discharged through the first pressure relief through hole 15 and the second pressure relief through hole 16, and the electric valve can be pressure-relieved. Finally, by rotating the locking bolt 5, the locking bolt 5 is rotated inside the pin seat 4, and the lower end of the locking bolt 5 is screwed out to the outside of the threaded seat 3, the valve cover 2 can be pulled to be detached from the top of the valve body 1, so as to facilitate the disassembly and maintenance of the electric valve, thereby completing the use of the electric valve.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fully automatic electric valve for temperature difference cycle heating, characterized in that: The invention comprises a valve body (1), a valve cover (2) is installed on the top of the valve body (1), a liquid outlet valve port (7) is arranged on the outer wall of one side of the valve body (1), a first lower internal thread (8) is arranged on the inner wall of the liquid outlet valve port (7), a liquid inlet valve port (6) is arranged on the outer wall of the valve body (1) away from the liquid outlet valve port (7), a second lower internal thread (11) is arranged on the inner wall of the liquid inlet valve port (6), and an inner valve channel (11) is arranged inside the valve body (1). 2), a lifting drive member (9) is installed at the top end of the valve cover (2), the bottom end of the lifting drive member (9) extends to the inside of the valve cover (2) and is provided with a valve core (13), the outer wall of the valve core (13) touches the inner wall of the valve cover (2), and a pressure relief seat (14) is provided at the top end of the liquid inlet valve port (6), a sealing head (10) is installed inside the pressure relief seat (14), and the top end of the sealing head (10) extends to the outside of the pressure relief seat (14).

2. The fully automatic electric valve for temperature difference cycle heating according to claim 1, characterized in that: The outer wall of the valve body (1) is provided with threaded seats (3) at equal intervals, and the outer wall of the valve cover (2) is provided with pin seats (4) at equal intervals.

3. A fully automatic electric valve for temperature difference cycle heating according to claim 2, characterized in that: A locking bolt (5) is installed at the top end of the pin seat (4), and the bottom end of the locking bolt (5) passes through the pin seat (4) and is threadedly connected to the threaded seat (3).

4. The fully automatic electric valve for temperature difference cycle heating according to claim 1 is characterized in that: An upper internal thread (17) is provided on the inner wall of the upper end of the pressure relief seat (14), and an upper external thread (18) is provided on the outer wall of the lower end of the plugging head (10), and the upper external thread (18) and the upper internal thread (17) cooperate with each other.

5. The fully automatic electric valve for temperature difference cycle heating according to claim 1 is characterized by: A second pressure relief through hole (16) is arranged inside the pressure relief seat (14), and a first pressure relief through hole (15) is arranged inside the liquid inlet valve port (6) at the position of the second pressure relief through hole (16).

6. The fully automatic electric valve for temperature difference cycle heating according to claim 4, characterized in that: A sealing ring (19) is provided on the outer wall of the sealing head (10) above the upper external thread (18), and the outer wall of the sealing ring (19) contacts the inner wall of the pressure relief seat (14).

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