Reversing valve with heat dissipation structure

Abstract

The reversing valve with the heat dissipation structure comprises a valve body, a main motor, a motor shaft and a lead screw, the main motor, the motor shaft and the lead screw are installed in the valve body, one end of the motor shaft is connected with the lead screw, the other end of the motor shaft is connected with the main motor and extends out of the main motor to form a connecting portion, and fan blades are connected to the connecting portion. Through the arrangement of the fan blades, when the reversing valve works, the fan blades rotate along with the motor shaft, internal air circulation is promoted, the internal temperature is reduced, and the reversing valve can still keep the normal working temperature when working frequently.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic control equipment, in particular to a reversing valve with a heat dissipation structure. Background Art

[0002] The reversing valve is a control device in the hydraulic system. Depending on the working conditions, the reversing valve is frequently started. When it is frequently started, heat will accumulate in the reversing valve, causing the overall temperature to rise, affecting the normal operation of the reversing valve. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a reversing valve with a heat dissipation structure, comprising a valve body, a main motor, a motor shaft and a screw rod. The main motor, the motor shaft and the screw rod are installed in the valve body. One end of the motor shaft is connected to the screw rod, and the other end is connected to the main motor and extends out of the main motor to form a connecting portion, and a fan blade is connected to the connecting portion.

[0004] Preferably, the valve body includes a main body and a cover plate, and a door hole is opened on the main body. When the fan blade is separated from the connecting part, it can enter and exit through the door hole.

[0005] Preferably, the door opening is provided with an internal thread, and the cover plate is provided with an external thread matching the internal thread.

[0006] Preferably, one side of the cover plate is hinged in the door opening, the other end of the cover plate is provided with a latch, and a pin hole is provided on the door opening.

[0007] Preferably, ventilation holes are provided on the cover plate, and a dustproof net is fixed on the inner side of the cover plate.

[0008] Preferably, the fan blade includes a connecting ring, a blade and a spring, the blade is fixed on the outer wall of the connecting ring, a connecting column is provided on the inner wall of the connecting ring, a connecting groove is provided on the side wall of the connecting part, the connecting groove is hook-shaped and an opening for the connecting column to enter and a clamping part for clamping the connecting column are formed on the side wall of the connecting part, a clamping ring is provided at the rear of the connecting groove, a retaining ring is provided on the outer side wall of the connecting part, and a spring is provided between the clamping ring and the retaining ring to push the connecting column to be clamped in the connecting groove.

[0009] Preferably, the dustproof net comprises a net frame and a net cloth, a receiving groove is provided on the cover plate, and a mounting slide groove for the net frame to be inserted into is provided on the side wall of the receiving groove.

[0010] The beneficial effects of the utility model are as follows: through the arrangement of the fan blades, when the reversing valve is working, the fan blades rotate along with the motor shaft, thereby promoting internal air circulation and reducing the internal temperature, so that the reversing valve can maintain a normal working temperature even when it works frequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of the first embodiment of the utility model;

[0012] Figure 2 This is a structural diagram of the second embodiment of the utility model;

[0013] Figure 3 This is an exploded view of the motor shaft, screw, fan blades and cover. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0015] See also Figure 1-Figure 3 The utility model provides a reversing valve with a heat dissipation structure, including a valve body 1, a main motor, a motor shaft 3 and a screw rod 4. The main motor, the motor shaft 3 and the screw rod 4 are installed in the valve body 1. One end of the motor shaft 3 is connected to the screw rod 4, and the other end is connected to the main motor and extends out of the main motor to form a connecting portion 31, and a fan blade 5 is connected to the connecting portion 31.

[0016] By setting the fan blade 5, when the reversing valve is working, it rotates with the motor shaft 3 to promote internal air circulation and reduce the internal temperature, so that the reversing valve can maintain a normal working temperature even when it works frequently.

[0017] Furthermore, the valve body 1 includes a main body 11 and a cover plate 12. A door hole is opened on the main body 11. When the fan blade 5 is separated from the connecting portion 31, it can enter and exit from the door hole, which is convenient for cleaning the fan blade 5 through the door hole, and also convenient for taking out or replacing the fan blade 5.

[0018] As a first embodiment, the door opening is provided with internal threads, and the cover plate 12 is provided with external threads matching the internal threads.

[0019] The cover plate 12 and the valve body 1 are connected by threads, so the structure is simple.

[0020] As a second embodiment, one side of the cover plate 12 is hinged in the door opening, a latch 121 is provided at the other end of the cover plate 12, a pin hole 122 is provided on the door opening, and the cover plate 12 and the valve body 1 are connected by the latch 121. The thickness requirement of the valve body 1 is relatively small, and the overall design and molding of the valve body 1 are more convenient.

[0021] Furthermore, a ventilation hole 123 is opened on the cover plate 12 , and a dustproof net 13 is fixed on the inner side of the cover plate 12 .

[0022] The ventilation holes 123 are provided to enhance air circulation inside and outside the valve body 1 , accelerate heat dissipation of the valve body 1 , and the dustproof net 13 prevents dust and other dirt from entering the valve body 1 , thereby keeping the interior of the valve body 1 clean.

[0023] Furthermore, the fan blade 5 includes a connecting ring 51, a blade 52 and a spring 53. The blade 52 is fixed on the outer wall of the connecting ring 51. A connecting column 54 is arranged on the inner wall of the connecting ring 51. A connecting groove 55 is opened on the side wall of the connecting part 31. The connecting groove 55 is hook-shaped and has an opening 551 for the connecting column 54 to enter and a clamping part 552 for clamping the connecting column 54 on the side wall of the connecting part 31. A clamping ring 56 is arranged at the rear of the connecting groove 55. A retaining ring 32 is arranged on the outer wall of the connecting part 31. The spring 53 is arranged between the clamping ring 56 and the retaining ring 32 to push the connecting column 54 to be clamped in the connecting groove 55.

[0024] During installation, the connecting post 54 enters the connecting groove 55 from the opening 551, compresses the spring 53, and after reaching the bottom, the connecting post 54 rotates to the clamping portion 552, and the spring 53 pushes the connecting post 54 to clamp the clamping portion 552, locking the fan blade 5. Through the above arrangement, the fan blade 5 is clamped, and the forward and reverse rotation of the motor shaft 3 does not affect the connection strength, making the overall structure more solid.

[0025] Furthermore, the dustproof net 13 includes a frame 131 and a mesh 132. A receiving groove is provided on the cover 12, and an installation slide groove 124 for the frame 131 to be inserted into is provided on the side wall of the receiving groove. After opening the cover 12, the dustproof net can be slid out from the installation slide groove 124, making it convenient to take out the dustproof net 13 for cleaning and maintenance.

[0026] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A reversing valve with a heat dissipation structure, comprising a valve body (1), a main motor, a motor shaft (3) and a screw rod (4), wherein the main motor, the motor shaft (3) and the screw rod (4) are installed in the valve body (1), and characterized in that: One end of the motor shaft (3) is connected to the screw rod (4), and the other end is connected to the main motor and extends out of the main motor to form a connecting portion (31), and the connecting portion (31) is connected to a fan blade (5).

2. The reversing valve with a heat dissipation structure according to claim 1, characterized in that: The valve body (1) comprises a main body (11) and a cover plate (12); a door opening is provided on the main body (11); when the fan blade (5) is separated from the connecting portion (31), the fan blade (5) can enter and exit through the door opening.

3. The reversing valve with a heat dissipation structure according to claim 2, characterized in that: The door opening is provided with an internal thread, and the cover plate (12) is provided with an external thread matching the internal thread.

4. The reversing valve with a heat dissipation structure according to claim 2, characterized in that: One side of the cover plate (12) is hinged in the door opening, the other end of the cover plate (12) is provided with a latch (121), and the door opening is provided with a pin hole (122).

5. A reversing valve with a heat dissipation structure according to claim 3 or 4, characterized in that: The cover plate (12) is provided with a ventilation hole (123), and a dustproof net (13) is fixed on the inner side of the cover plate (12).

6. The reversing valve with a heat dissipation structure according to claim 5, characterized in that: The fan blade (5) comprises a connecting ring (51), a blade (52) and a spring (53); the blade (52) is fixed on the outer wall of the connecting ring (51); a connecting column (54) is arranged on the inner wall of the connecting ring (51); a connecting groove (55) is provided on the side wall of the connecting portion (31); the connecting groove (55) is hook-shaped and has an opening (551) for the connecting column (54) to enter and a clamping portion (552) for clamping the connecting column (54) on the side wall of the connecting portion (31); a clamping ring (56) is arranged at the rear of the connecting groove (55); a retaining ring (32) is arranged on the outer wall of the connecting portion (31); and the spring (53) is arranged between the clamping ring (56) and the retaining ring (32) to push the connecting column (54) to be clamped in the connecting groove (55).

7. The reversing valve with a heat dissipation structure according to claim 5, characterized in that: The dustproof net (13) comprises a net frame (131) and a net cloth (132); a receiving groove is provided on the cover plate (12); and a mounting slide groove (124) for the net frame (131) to be inserted into is provided on the side wall of the receiving groove.

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