Valve element of liquid adding valve

Abstract

The utility model discloses a liquid adding valve core, which comprises a valve core main body and a valve rod, two ends of the valve core main body are respectively provided with a first mounting hole and a second mounting hole, one end of the valve rod is a sliding mounting part matched with the first mounting hole, and the sliding mounting part is inserted into the first mounting hole and is in sliding connection with the first mounting hole. An adjusting piece is rotationally arranged in the second mounting hole, a threaded rod is coaxially arranged at one end of the adjusting piece, and a threaded hole matched with the threaded rod and in threaded connection with the threaded rod is coaxially formed in the end of the valve rod. When the liquid adding valve is used, the hand wheel or the handle is rotated to drive the adjusting piece to rotate, the valve rod can achieve axial movement adjustment under the cooperation of the threaded rod, the threaded hole, the first mounting hole and the sliding mounting part, operation is easy, the overall structure is compact, and therefore the liquid adding valve can be made to be smaller and more exquisite, and the use is convenient. The liquid adding valve provided with the valve element can be applied to more scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve accessories technical field, concretely relates to a liquid filling valve core. BACKGROUND

[0002] The liquid filling valve is a key component used in the process of adding refrigerant in air conditioner, mainly used for controlling the flow and filling of refrigerant or coolant, used for connecting refrigerant bottle or other filling equipment, so as to add refrigerant or coolant in refrigeration system. The existing liquid filling valve core connects valve stem, and the valve stem is connected with the valve body through thread, so when controlling the opening and closing of the valve core, the hand wheel and the valve stem will move up and down in the rotating process, and the use experience is poor. In addition, the structure of the valve core and the valve stem occupies a large space, and at the same time, it also limits the overall size of the liquid filling valve, which makes it difficult to apply the liquid filling valve in some use scenarios with small installation space. SUMMARY

[0003] The utility model aims at solving the prior art problems, provide a kind of liquid filling valve core with simple structure, compact, good sealing effect.

[0004] To achieve the above object, the technical scheme of the utility model is as follows:

[0005] A kind of liquid filling valve core, including valve core main body and valve stem, first installation hole and second installation hole are respectively set in the both ends of the valve core main body, the first installation hole and the second installation hole are coaxially arranged and are communicated in the valve core main body interior;The cross section of the first installation hole is regular polygon, one end of the valve stem is sliding installation part matched with the first installation hole, the sliding installation part is inserted into the first installation hole and is slidably connected with it;Adjusting piece is rotatably arranged in the second installation hole, one end of the adjusting piece is coaxially provided with threaded rod, and the end of the valve stem is coaxially provided with threaded hole matched with the threaded rod and screw connected.

[0006] Preferably, the outer side of the valve core main body is provided with annular partition portion with steps, the outer wall of the valve core main body close to the valve stem side is provided with external thread, and the valve core main body between the external thread and the annular partition portion is provided with annular groove, and the annular groove is provided with sealing ring.

[0007] Preferably, the second installation hole is a circular hole, the cross-sectional width of the second installation hole is less than the cross-sectional width of the first installation hole, the end of the adjusting piece close to the threaded rod is provided with annular limiting portion, the end of the adjusting piece away from the threaded rod and extending to the outside of the valve core main body is provided with mounting seat, the mounting seat is provided with annular clamping groove, and the mounting seat is provided with limiting clamping plate through the annular clamping groove, and the adjusting piece is axially fixed through the limiting portion and the limiting clamping plate.

[0008] Preferably, the mounting seat is provided with a protruding mounting block, and a mounting hole is formed in the mounting block.

[0009] Preferably, an installation groove is formed in the end of the valve rod away from the valve core body, and a sealing block is arranged in the installation groove.

[0010] Preferably, the installation groove is in communication with the threaded hole.

[0011] Preferably, the first mounting hole has a cross section in the shape of a regular pentagon or a regular hexagon.

[0012] The utility model discloses a beneficial effect is:

[0013] The utility model discloses a kind of liquid adding valve valve core, including valve core body and valve rod, first installation hole and second installation hole are respectively formed in the both ends of valve core body, one end of valve rod is the sliding installation part matched with first installation hole, sliding installation part is inserted into first installation hole and with its sliding connection.Second installation hole is rotationally arranged with adjusting part, one end of adjusting part is coaxially provided with threaded rod, and the end of valve rod is coaxially provided with threaded hole matched with threaded rod and screw connection.Limiting portion of ring is arranged in the end of adjusting part close to threaded rod, and the end of adjusting part extending to outside valve core body away from threaded rod is provided with mounting seat, and limiting clamping plate is arranged on mounting seat by annular clamping groove, the design of limiting portion and limiting clamping plate, adjusting part is clamped in second installation hole and cannot be axially moved, and adjusting part can be circumferentially rotated simultaneously due to the fact that second installation hole is round hole.In use, just rotate hand wheel or handle, drive adjusting part to rotate, under the cooperation of threaded rod, threaded hole, first installation hole and sliding installation part, valve rod can be axially moved and adjusted, and the whole structure is compact, so that the liquid adding valve can be made more small and delicate, so that the liquid adding valve of the valve core can be applied to more scenes. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model;

[0015] Figure 2 It is Figure 1 Right view;

[0016] Figure 3 It is the internal structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] In order to make personnel in the technical field better understand the utility model scheme, the present application is further explained in detail in combination with embodiments as follows.

[0018] As Figures 1-3The shown liquid adding valve spool includes a spool body 1 and a valve rod 2, first and second mounting holes 11 and 12 are respectively formed at both ends of the spool body 1, and the first and second mounting holes 11 and 12 are coaxially arranged and communicate with each other inside the spool body 1. The cross section of the first mounting hole 11 is a regular polygon, and in actual application, the first mounting hole 11 with a cross section of a regular quadrilateral, a regular quadrilateral or a regular hexagon can be generally used. One end of the valve rod 2 is a sliding installation part 21 matched with the first mounting hole 11, the shape of the sliding installation part 21 is consistent with that of the first mounting hole 11, and the sliding installation part 21 is inserted into the first mounting hole 11 and is in sliding connection with the first mounting hole 11.

[0019] An adjusting part 3 is rotationally arranged in the second mounting hole 12, one end of the adjusting part 3 is coaxially provided with a threaded rod 31, and a threaded hole 22 matched with the threaded rod 31 and in threaded connection is coaxially formed at the end of the valve rod 2. The second mounting hole 12 is a circular hole, the cross section width of the second mounting hole 12 is smaller than that of the first mounting hole 11, and one end of the adjusting part 3 close to the threaded rod 31 is provided with an annular limiting part 32. An installation seat 5 is arranged at one end of the adjusting part 3 away from the threaded rod 31 and extending out of the spool body 1, an annular clamping groove 51 is formed in the installation seat 5, a limiting clamping plate 52 is arranged in the installation seat 5 through the annular clamping groove 51, and a clamping tooth and a clamping opening for clamping into the installation seat 5 are arranged on the limiting clamping plate 52. The adjusting part 3 is axially fixed through the limiting part 32 and the limiting clamping plate 52. The limiting part 32 and the limiting clamping plate 52 are designed to clamp the adjusting part 3 in the second mounting hole 12 and prevent the adjusting part 3 from moving axially, and since the second mounting hole 12 is a circular hole, the adjusting part 3 can rotate circumferentially. The installation seat 5 is provided with a protruding installation block 55, an installation hole 56 is formed in the installation block 55, and the installation seat 5 is used for fixing a hand wheel or a handle.

[0020] A stepped annular separation part 4 is arranged on the outer side of the spool body 1, an outer thread 41 is formed on the outer wall of the spool body 1 close to the valve rod 2, an annular groove 42 is formed on the spool body 1 between the outer thread 41 and the annular separation part 4, and a sealing ring 44 is arranged in the annular groove 42. The design of the outer thread 41 facilitates the installation of the spool body 1 on the liquid adding valve, the annular groove 42 makes the sealing ring 44 firmly installed and not easy to be loosened, and the combination of the sealing ring 44 and the outer thread 41 can improve the sealing performance of the spool body 1 after being installed on the liquid adding valve.

[0021] As a preferred scheme, the valve stem 2 is provided with a mounting groove 29 at one end away from the valve core body 1, and a sealing block 28 is arranged in the mounting groove 29, which can be made of rubber or ceramic material, and the design of the mounting groove 29 makes the installation of the sealing block 28 more convenient. The mounting groove 29 is communicated with the threaded hole 22, which improves the depth of the threaded hole 22, and at the same time, the overall structure is compact because the threaded rod 31 on the adjusting part 3 is located in the first mounting hole 11, so that the liquid adding valve can be made smaller, and can be applied to more scenes.

[0022] In use, only the hand wheel or handle is rotated to drive the adjusting part 3 to rotate, and under the cooperation of the threaded rod 31, the threaded hole 22, the first mounting hole 11 and the sliding mounting part 21, the valve stem 2 can be axially moved and adjusted, and the operation is simple.

[0023] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A liquid adding valve spool, characterized by: The valve core body (1) is provided with a first mounting hole (11) and a second mounting hole (12) at both ends, the first mounting hole (11) and the second mounting hole (12) are coaxially arranged and communicated inside the valve core body (1); the cross section of the first mounting hole (11) is a regular polygon, one end of the valve stem (2) is a sliding mounting part (21) matched with the first mounting hole (11), the sliding mounting part (21) is inserted into the first mounting hole (11) and is in sliding connection with the first mounting hole (11); the second mounting hole (12) is rotatably provided with an adjusting piece (3), one end of the adjusting piece (3) is coaxially provided with a threaded rod (31), and the end of the valve stem (2) is coaxially provided with a threaded hole (22) matched with the threaded rod (31) and in threaded connection.

2. The liquid addition valve spool of claim 1, wherein: The outer side of the valve core body (1) is provided with a stepped annular separation part (4), the outer wall of the valve core body (1) near the valve stem (2) is provided with an external thread (41), an annular groove (42) is formed in the valve core body (1) between the external thread (41) and the annular separation part (4), and a sealing ring (44) is arranged in the annular groove (42).

3. The liquid addition valve spool of claim 1, wherein: The second mounting hole (12) is a circular hole, the cross section width of the second mounting hole (12) is smaller than that of the first mounting hole (11), the adjusting piece (3) is provided with an annular limiting part (32) at one end near the threaded rod (31), the adjusting piece (3) is provided with a mounting seat (5) at one end away from the threaded rod (31) and extending to the outside of the valve core body (1), the mounting seat (5) is provided with an annular clamping groove (51), and the mounting seat (5) is provided with a limiting clamping plate (52) through the annular clamping groove (51), and the adjusting piece (3) is axially fixed through the limiting part (32) and the limiting clamping plate (52).

4. The liquid addition valve spool of claim 3, wherein: The mounting seat (5) is provided with a protruding mounting block (55), and the mounting block (55) is provided with a mounting hole (56).

5. The liquid addition valve spool of claim 1, wherein: The valve stem (2) is provided with a mounting groove (29) at one end away from the valve core body (1), and the mounting groove (29) is provided with a sealing block (28).

6. The liquid addition valve spool of claim 5, wherein: The mounting groove (29) is communicated with the threaded hole (22).

7. The liquid addition valve spool of claim 1, wherein: The cross section of the first mounting hole (11) is a regular pentagon or a regular hexagon.

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