Novel direct-acting overflow valve with improved structure

Abstract

The utility model relates to the technical field of overflow valves, and discloses a novel direct-acting overflow valve with an improved structure, which comprises a first main valve seat, a second main valve seat and a second main valve seat, the adjusting mechanism is arranged in the left side of the first locking sleeve; the adjusting mechanism comprises a first adjusting rod, the outer surface of the first adjusting rod is connected with the inner portion of the left side of a first locking sleeve in a threaded and sleeved mode, and the right side of the outer surface of the first adjusting rod is movably connected with the inner portion of the first locking sleeve in a sleeved mode. According to the novel direct-acting overflow valve with the improved structure, the first adjusting rod is screwed to move leftwards along the interior of the first locking sleeve, so that the compression amount of the first spring is reduced, and then the oil pressure needed for opening the first liquid inlet is reduced; the effect of reducing the number of parts is achieved, the assembly process can be simplified, and the machining cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of overflow valve, more specifically, the utility model relates to a novel direct acting overflow valve with improved structure. BACKGROUND

[0002] The overflow valve plays a safety protection role in the system. When the system pressure exceeds the specified value, the safety valve opens, and part of the gas in the system is discharged into the atmosphere, so that the system pressure does not exceed the allowable value, thereby ensuring that the system does not have an accident due to excessive pressure.

[0003] The prior art as shown in Figures 1-4 The second locking sleeve 16 is internally threaded and sleeved with a second adjusting rod 17, the outer surface of the second adjusting rod 17 is threaded and sleeved with a second locking nut 18, the right end of the second adjusting rod 17 is movably connected with a gasket 19, the right side of the gasket 19 is movably connected with a second spring seat 20, the outer surfaces of the gasket 19 and the second spring seat 20 are movably sleeved with the second locking sleeve 16, the right side of the outer surface of the second spring seat 20 is movably sleeved with a third spring seat 21, the second tapered valve core 22 is movably connected with the second liquid inlet 14, the outer surface of the third spring seat 21 is fixedly installed with a second spring 23, the left end of the second spring 23 is fixedly connected with the outer surface of the second spring seat 20. Since the second spring 23 compression adjusting mechanism in the prior art is composed of the second adjusting rod 17, the gasket 19 and the second spring seat 20, the number of parts is large, the machining and assembly difficulty is large, and the second spring 23 in the prior art is not supported, so that the compression perpendicularity of the second spring 23 is easy to deviate when the second spring 23 is compressed, thereby causing the second tapered valve core 22 to deviate, thereby causing the overall sealing performance of the second main valve seat 24 to be poor.

[0004] In order to prevent the spring from deviating when compressed and affecting the sealing performance of the valve body, while reducing the processing cost and simplifying the assembly process, we propose a novel direct acting overflow valve with improved structure. Utility model content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a novel direct acting overflow valve with improved structure, which has the advantages of reducing processing cost and simplifying assembly process.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a novel direct acting overflow valve with improved structure, comprising:

[0007] The first main valve seat is internally sleeved with a first locking sleeve on the left side;

[0008] An adjusting mechanism is arranged in the interior of the left side of the first locking sleeve;

[0009] The adjusting mechanism comprises a first adjusting rod, the outer surface of the first adjusting rod is threadedly sleeved with the interior of the left side of the first locking sleeve, the right side of the outer surface of the first adjusting rod is movably sleeved with the interior of the first locking sleeve, a first spring is movably connected to the right side of the first adjusting rod, a first spring seat is fixedly installed at the right end of the first spring, the outer surface of the first spring seat is movably sleeved with the interior of the first main valve seat, and a first tapered valve core is fixedly sleeved with the interior of the first spring seat.

[0010] As a preferred technical scheme of the utility model, the outer surface of the first spring seat is fixedly installed with a sleeve, and the interior of the sleeve is movably sleeved with the outer surface of the first spring.

[0011] As a preferred technical scheme of the utility model, the right side of the first main valve seat is provided with a first liquid inlet, the interior of the first liquid inlet is movably connected with the outer surface of the first tapered valve core, and the outer surface of the first main valve seat is provided with a first liquid outlet.

[0012] As a preferred technical scheme of the utility model, the outer surface of the first locking sleeve is provided with a first rubber ring, and the outer surface of the first rubber ring is in contact with the interior of the first main valve seat.

[0013] As a preferred technical scheme of the utility model, the outer surface of the first adjusting rod is provided with a second rubber ring, and the outer surface of the second rubber ring is in contact with the interior of the first locking sleeve.

[0014] As a preferred technical scheme of the utility model, the outer surface of the first adjusting rod is threadedly sleeved with a first locking nut, and the right side of the first locking nut is in contact with the left side of the first locking sleeve.

[0015] As a preferred technical scheme of the utility model, the left side of the first adjusting rod is provided with a short groove, and the short groove is hexagonal.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、the novel direct-acting overflow valve with the improved structure, by screwing the first adjusting rod, the first adjusting rod moves leftwards along the interior of the first locking sleeve, so that the compression amount of the first spring is reduced, and then the oil pressure required for opening the first liquid inlet is reduced, wherein the first adjusting rod is integrally formed, so that the number of parts is reduced, and then the assembly process is simplified and the processing cost is reduced.

[0018] 2、The improved direct-acting overflow valve, through the sleeve for mechanical limiting of the first spring, ensures that the first spring compression verticality does not deviate greatly when the first cone valve core reciprocates, thereby avoiding the condition that the radial force acts on the first cone valve core to cause poor overall sealing of the first main valve seat, due to the design of the first rubber ring and the second rubber ring, the sealing between the overflow valve components can be enhanced, due to the design of the first locking nut, when the first locking nut and the first locking sleeve are attached, the sealing between the first adjusting rod and the first locking sleeve can be enhanced, due to the design of the short groove, the operator can conveniently twist the first adjusting rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a prior art structure schematic diagram;

[0020] Figure 2 It is a prior art back view structure schematic diagram;

[0021] Figure 3 It is a prior art cross-sectional structure schematic diagram;

[0022] Figure 4 It is a prior art gasket structure schematic diagram;

[0023] Figure 5 It is a structure schematic diagram of the utility model;

[0024] Figure 6 It is a back view structure schematic diagram of the utility model;

[0025] Figure 7 It is a cross-sectional structure schematic diagram of the utility model;

[0026] Figure 8 It is a sleeve cross-sectional structure schematic diagram of the utility model.

[0027] In the drawing: 1, first main valve seat; 2, first locking sleeve; 3, first adjusting rod; 4, first spring; 5, first spring seat; 6, first cone valve core; 7, sleeve; 8, first liquid inlet; 9, first liquid outlet; 10, first rubber ring; 11, second rubber ring; 12, first locking nut; 13, short groove; 14, second liquid inlet; 15, second liquid outlet; 16, second locking sleeve; 17, second adjusting rod; 18, second locking nut; 19, gasket; 20, second spring seat; 21, third spring seat; 22, second cone valve core; 23, second spring; 24, second main valve seat. DETAILED DESCRIPTION

[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0029] As shown in Figures 1-8 The utility model provides a structure improved novel direct action overflow valve, including:

[0030] The first main valve seat 1 is internally sleeved with the first locking sleeve 2 on the left side.

[0031] The adjusting mechanism is arranged in the internal left side of the first locking sleeve 2.

[0032] The adjusting mechanism includes the first adjusting rod 3, the outer surface of the first adjusting rod 3 is threadedly sleeved with the internal left side of the first locking sleeve 2, the right side of the outer surface of the first adjusting rod 3 is movably sleeved with the internal left side of the first locking sleeve 2, the right side of the first adjusting rod 3 is movably connected with the first spring 4, the right end of the first spring 4 is fixedly connected with the first spring seat 5, the outer surface of the first spring seat 5 is movably sleeved with the internal left side of the first main valve seat 1, and the internal left side of the first spring seat 5 is fixedly sleeved with the first cone valve core 6.

[0033] When the oil pressure borne by the first cone valve core 6 is greater than the spring force of the first spring 4, the first cone valve core 6 will compress the first spring 4 to the left through the first spring seat 5, when the oil pressure borne by the first cone valve core 6 is less than the spring force of the first spring 4, the spring force of the first spring 4 will act on the first spring seat 5, so that the first spring seat 5 drives the first cone valve core 6 to move to the right, and since the first adjusting rod 3 is threadedly sleeved with the internal left side of the first locking sleeve 2, when the first adjusting rod 3 rotates, it will move to the left at the same time, and at this time, the first adjusting rod 3 will reduce the compression amount of the first spring 4, and since the first adjusting rod 3 is integrally formed, the processing cost can be reduced and the assembly process can be simplified.

[0034] The outer surface of the first spring seat 5 is fixedly connected with the sleeve 7, and the internal left side of the sleeve 7 is movably connected with the outer surface of the first spring 4.

[0035] When the first spring 4 moves, it will be mechanically limited by the sleeve 7, so that the first spring 4 can be prevented from deviating.

[0036] The right side of the first main valve seat 1 is provided with the first liquid inlet 8, the internal left side of the first liquid inlet 8 is movably connected with the outer surface of the first cone valve core 6, and the outer surface of the first main valve seat 1 is provided with the first liquid outlet 9.

[0037] When the first cone valve core 6 moves to the left, the first liquid inlet 8 will be blocked, and the oil will flow into the first main valve seat 1 from the first liquid inlet 8 and then overflow from the first liquid outlet 9, when the first spring 4 drives the first cone valve core 6 to move to the left through the first spring seat 5, the first cone valve core 6 will block the first liquid inlet 8 in the left movement, and the first liquid inlet 8 will be in a closed state.

[0038] The outer surface of the first locking sleeve 2 is provided with a first rubber ring 10, and the outer surface of the first rubber ring 10 is in contact with the inside of the first main valve seat 1.

[0039] Due to the design of the first rubber ring 10, the sealing between the first locking sleeve 2 and the first main valve seat 1 can be enhanced.

[0040] The outer surface of the first adjusting rod 3 is provided with a second rubber ring 11, and the outer surface of the second rubber ring 11 is in contact with the inside of the first locking sleeve 2.

[0041] Due to the design of the second rubber ring 11, the sealing between the first adjusting rod 3 and the first locking sleeve 2 can be enhanced.

[0042] The outer surface of the first adjusting rod 3 is threadedly sleeved with a first locking nut 12, and the right side of the first locking nut 12 is in contact with the left side of the first locking sleeve 2.

[0043] Due to the threaded sleeve of the inside of the first locking nut 12 and the outer surface of the first adjusting rod 3, when the first locking nut 12 rotates around the first adjusting rod 3, it will also move left and right, and when the right side of the first locking nut 12 is in contact with the left side of the first locking sleeve 2, the sealing between the first locking sleeve 2 and the first adjusting rod 3 can be increased.

[0044] The left side of the first adjusting rod 3 is provided with a short groove 13, and the short groove 13 is hexagonal.

[0045] Due to the design of the short groove 13, the first adjusting rod 3 can be easily twisted by the operator.

[0046] The working principle and use process of the utility model:

[0047] When the pressure borne by the first liquid inlet 8 is greater than the spring force of the first spring 4, at this time the first spool valve core 6 will drive the first spring seat 5 to move left, at this time the first spring seat 5 will compress the first spring 4, and at the same time the first spool valve core 6 will be in contact with the first liquid inlet 8, at this time the first liquid inlet 8 will be in an open state, at this time the oil will flow into the inside of the first main valve seat 1 from the first liquid inlet 8 and then overflow from the first liquid outlet 9, when the pressure borne by the first liquid inlet 8 is less than the spring force of the first spring 4, the right end of the first spring 4 acts on the first spring seat 5 to drive the first spool valve core 6 to move right, then the outer surface of the first spool valve core 6 will shield the first liquid inlet 8 during the right movement, at this time the first liquid inlet 8 will be in a closed state, when the operator needs to adjust the pressure required to open the first liquid inlet 8, at this time the operator twists the first adjusting rod 3, at this time the first adjusting rod 3 will rotate along the inside of the left side of the first locking sleeve 2, because the outer surface of the first adjusting rod 3 is screwed with the inside of the left side of the first locking sleeve 2, at this time the first adjusting rod 3 rotates while moving left along the inside of the left side of the first locking sleeve 2, at this time the first adjusting rod 3 will gradually reduce the compression amount of the first spring 4 during the left movement, thereby reducing the oil pressure required to open the first liquid inlet 8, because the first adjusting rod 3 is integrally formed, thereby realizing the function of reducing the processing cost and simplifying the assembly process.

[0048] When the first spring 4 is compressed again, at this time the sleeve 7 will limit the first spring 4, so as to prevent the compression perpendicularity of the first spring 4 from deviating during compression, thereby preventing the first spool valve core 6 from deviating to cause the overall sealing performance of the first main valve seat 1 to be reduced, because of the design of the first rubber ring 10 and the second rubber ring 11, the sealing performance between the valve body structures can be enhanced, because the inside of the first locking nut 12 is screwed with the outer surface of the first adjusting rod 3, when the first locking nut 12 rotates around the first adjusting rod 3 as the axis, at this time the first locking nut 12 will move left and right, when the right side of the first locking nut 12 is in contact with the left side of the first locking sleeve 2, at this time the first locking nut 12 can enhance the sealing performance between the first adjusting rod 3 and the first locking sleeve 2, because of the design of the short groove 13, the operator can twist the first adjusting rod 3 more easily.

[0049] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0050] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A new poppet valve with improved structure, characterized in that, The utility model relates to a first main valve seat (1), the inside fixed sleeve of left side of first main valve seat (1) has first locking sleeve (2); Adjusting mechanism, the adjusting mechanism is arranged in the inside left side of first locking sleeve (2); Wherein, the adjusting mechanism includes first adjusting rod (3), the outer surface of first adjusting rod (3) is screwed with the inside left side of first locking sleeve (2), the right side of outer surface of first adjusting rod (3) is movably connected with the inside of first locking sleeve (2), the right side of first adjusting rod (3) movably connects with first spring (4), the right end of first spring (4) is fixedly installed with first spring seat (5), the outer surface of first spring seat (5) is movably connected with the inside of first main valve seat (1), the inside of first spring seat (5) is fixedly sleeved with first cone valve core (6). The outer surface of first spring seat (5) is fixedly installed with sleeve (7), the inside of sleeve (7) is movably connected with the outer surface of first spring (4).

2. A structurally improved novel direct-acting spill valve according to claim 1, characterized in that: The right side of first main valve seat (1) is provided with first liquid inlet (8), the inside of first liquid inlet (8) is movably connected with the outer surface of first cone valve core (6), the outer surface of first main valve seat (1) is provided with first liquid outlet (9).

3. A structurally improved novel direct-acting spill valve according to claim 1, characterized in that: The outer surface of first locking sleeve (2) is provided with first rubber ring (10), the outer surface of first rubber ring (10) is in contact with the inside of first main valve seat (1).

4. The improved novel direct-acting spill valve according to claim 1, wherein: The outer surface of first adjusting rod (3) is provided with second rubber ring (11), the outer surface of second rubber ring (11) is in contact with the inside of first locking sleeve (2).

5. The improved new direct-acting spill valve according to claim 1, wherein: The outer surface of first adjusting rod (3) is screwed with first locking nut (12), the right side of first locking nut (12) is in contact with the left side of first locking sleeve (2).

6. A structurally improved novel direct-acting spill valve according to claim 1, characterized in that: The left side of first adjusting rod (3) is provided with short groove (13), and the short groove (13) is hexagonal.

7. The improved new direct-acting spill valve according to claim 1, wherein: ​

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