Quick and reliable separation sealing valve structure

Abstract

The utility model relates to the field of oil and gas recovery snap valves for oil and gas recovery oiling machines, in particular to a quick and reliable separation sealing valve structure which comprises an inner connector assembled in a large-diameter section of an outer connector through a first check ring. The small-diameter section of the connecting sleeve is sleeved with a valve, a first sealing ring is arranged between the inner wall of the valve and the outer wall of the small-diameter section of the connecting sleeve, a center connector is installed in the outer connector in a penetrating mode, the right end of the center connector extends into the small-diameter section of the connecting sleeve, and a second sealing ring is arranged between the outer wall of the right end of the center connector and the inner wall of the small-diameter section of the connecting sleeve; the right side of the center connector is connected with the valve in a buckled mode, a step shaft is arranged on the outer wall of the valve in a protruding mode, a reset elastic piece in a compressed state is arranged between the step shaft and the large-diameter section of the connecting sleeve, and a step groove matched with the other end of the step shaft is formed in the left side of the small-diameter section of the inner connector. By means of the structure, after the oil gas recovery breakaway valve is dragged and pulled open, the oil duct can be sealed quickly, oil leakage is avoided, and resetting of the valve can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of oil gas recovery pull-off valve of oil gas recovery dispenser, specifically relates to a quick reliable separation sealing valve structure. BACKGROUND

[0002] The current market's oil station often occurs in the state without the oil gun recovery when the vehicle starts after the vehicle is filled with gasoline, at this time the vehicle will drag the oil gun, and eventually lead to the dispenser dumping and the safety hazard of the leakage of dangerous liquid such as gasoline. In order to avoid the above safety hazard, the oil station generally installs an oil gas recovery pull-off valve between the oil gun and the oiling rubber tube, when the vehicle is dragged, the oil gas recovery pull-off valve can automatically fall off and separate, the built-in valve automatically closes to protect the oil from leaking to the atmosphere and polluting the environment. But the current market uses the oil gas recovery pull-off valve, when being dragged and pulled open, the valve is stuck and cannot be reset, causing a large amount of gasoline to leak, which has certain safety risk. SUMMARY

[0003] In view of the foregoing technical problems, the purpose of the utility model is to provide a quick and reliable separation sealing valve structure.

[0004] The utility model discloses a quick reliable separation sealing valve structure, including inner joint, outer joint, the small diameter section of inner joint is assembled in the large diameter section inside outer joint through first stop ring, the inside of inner joint is equipped with the connecting sleeve, the small diameter section of connecting sleeve is equipped with the valve and is equipped with first sealing ring between the inner wall of valve and the small diameter section outer wall of connecting sleeve;The inside of outer joint is equipped with the center joint, the right end of center joint enters to the small diameter section inside connecting sleeve and is equipped with second sealing ring between the right end outer wall of center joint and the small diameter section inner wall of connecting sleeve, the right side of center joint is buckle connection with valve;The outer wall of valve is provided with the step shaft, and the end surface of step shaft is equipped with the reset elastic piece in the compression state between the large diameter section of connecting sleeve, the small diameter section left side of inner joint is equipped with the step groove that is suitable for the other end of step shaft.

[0005] Further, the right side outer wall of the center joint is provided with a plurality of clamping blocks distributed in the circumference, and the end face on the left side of the valve is provided with a plurality of clamping holes distributed in the circumference and used for clamping the corresponding clamping blocks, the clamping holes are formed by the cantilevers distributed relatively.

[0006] Further, the center joint is connected with the left side of the outer joint through the second stop ring.

[0007] Further, the large diameter section outer wall of the connecting sleeve is provided with a boss, and the inner wall of the inner joint is provided with a clamping groove matched with the boss.

[0008] Further, the reset elastic member is a reset spring.

[0009] The utility model discloses the beneficial effect of the foregoing technical scheme is:

[0010] The buckle structure on the valve and the center joint can ensure that the oil and gas recovery pull-off valve exerts a pulling force in the same direction as the valve movement direction when being pulled off, and under the action of external force, the center joint, the outer joint drive the valve to move, when the step shaft on the valve and the step groove on the inner joint are blocked and matched, the oil passage is sealed, and a large amount of gasoline leakage is avoided, under the action of external force, the center joint and the outer joint are completely separated from other parts, at this time, the reset spring is in the compressed state to ensure the close fit of the step shaft and the step groove, and the sealing performance is further improved; when it is needed to be used again, the center joint and the outer joint can be reassembled into the valve structure to realize the reset of the valve.

[0011] The foregoing description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure section view of a quick and reliable separation sealing valve.

[0013] Figure 2 It is Figure 1 It is an enlarged view of A in the figure.

[0014] Figure 3 It is an assembly schematic view of the center joint and the valve of a quick and reliable separation sealing valve.

[0015] REFERENCE NUMERALS

[0016] 1, inner joint; 101, step groove; 102, clamping groove; 2, outer joint; 3, center joint; 301, clamping block; 302, supporting block; 4, connecting sleeve; 401, boss; 5, valve; 501, clamping hole; 502, step shaft; 6, reset elastic member; 7, first sealing ring; 701, second sealing ring; 8, first blocking ring; 9, second blocking ring. DETAILED DESCRIPTION

[0017] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined invention purpose, the specific implementation, structure, features and effects of the quick and reliable separation sealing valve structure according to the utility model are described in detail below in combination with the drawings and preferred embodiments; in the drawings and the following description, at least part of the known structure and prior art is not shown in order to avoid unnecessary obscuring of the present application; and, in order to be clear, the size and shape of part of the structure can be exaggerated. The features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments, and in addition, the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or quantity.

[0018] The orientation words appearing in the following description are the directions shown in the drawings and do not limit the specific structure of the present application. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] Please refer to Figure 1 , the valve structure includes inner joint 1, outer joint 2, the small diameter section of the inner joint 1 is assembled in the large diameter section of the outer joint 2 through the first stop ring 8, the inside of the inner joint 1 is provided with a connecting sleeve 4, the small diameter section of the connecting sleeve 4 is sleeved with a valve 5 to allow the valve 5 and the small diameter section of the connecting sleeve 4 to be in sliding fit, and a first sealing ring 7 (as shown in Figure 2 ) for sealing is arranged between the inner wall of the valve 5 and the outer wall of the small diameter section of the connecting sleeve 4, the large diameter section of the connecting sleeve 4 is provided with a boss 401, and the inner wall of the inner joint 1 is provided with a clamping groove 102 for clamping and matching with the aforementioned boss 401; the inside of the outer joint 2 is provided with a center joint 3, the left side of the center joint 3 is connected with the left side of the outer joint 2 through a second stop ring 9, the right end of the center joint 3 extends into the inside of the small diameter section of the connecting sleeve 4, and a second sealing ring 701 (as shown in Figure 2 ) is arranged between the outer wall of the right end of the center joint 3 and the inner wall of the small diameter section of the connecting sleeve 4, the right side of the center joint 3 is buckled with the valve 5, and details can be seen from Figure 3The outer wall of the center joint 3 right side is provided with a plurality of clamping blocks 301 distributed in a circle, and the end face of the valve 5 left side is provided with a plurality of clamping holes 501 for clamping the corresponding clamping blocks 301, the clamping hole 501 is formed by the cantilever distributed oppositely, the clamping block 301 is clamped into the corresponding clamping hole 501 when the valve structure is normally working, the inside of the center joint 5 is a gas hole for gas passing through along the axial direction, the outside left side is provided with a plurality of supporting blocks 302 distributed in a circle, and the oil channel for liquid oil passing through is arranged between the adjacent two supporting blocks 302; as shown in Figure 2 The outer wall of the valve 5 is provided with a stepped shaft 502, one end face of the stepped shaft 502 and the large diameter section of the connecting sleeve 4 are provided with the reset elastic element 6 in a compressed state, and the reset elastic element is reset spring in the embodiment, and the stepped groove 101 matched with the other end of the stepped shaft 502 is arranged on the small diameter section left side of the inner joint 1.

[0020] When the valve structure is in the initial state, the left end of the center joint 3 is connected with the oil gun, the inner joint 1 is connected with the outer joint 2 through the second blocking ring 9, the center joint 3 is buckled with the valve 5, the rear side of the inner joint 1 is connected with the oil pipe, and the reset spring is in a compressed state, and the liquid oil passes through the oil channel between the adjacent two supporting blocks 302 of the center joint 3.

[0021] When the valve structure is pulled off, the inner joint 1 and the outer joint 2 start to separate under the action of the external force of the vehicle and the oil gun, and then the center joint 3 moves together with the outer joint 2, at this time, the buckle structure on the center joint 3 and the valve 5 starts to bear force, the direction of the force borne by the valve 5 is consistent with the direction of the movement trend of the valve 5, and the reset spring 6 in the compressed state also provides the elastic force in the movement direction of the valve 5, through the action of the external force and the elastic force, the valve 5 is forced to move together with the center joint 3 and the outer joint 2, when moving for a distance, the end face of the stepped shaft 502 on the outer diameter of the valve 5 is attached to the stepped groove 101 to form a blocking structure, the valve 5 does not move any more, the oil channel is closed, then the center joint 3 and the outer joint 2 are completely separated from the valve 5 under the action of the external force, and the reset spring 6 is also in a compressed state to ensure that the stepped shaft 502 and the stepped groove 101 are closely attached to further ensure the sealing of the oil channel; so that the built-in valve structure can be quickly and automatically closed after being pulled off to ensure that the gasoline does not leak; when it is needed to be used again, the buckle structure of the center joint 3 and the valve 5 and the inner joint 1 and the outer joint 2 need to be reassembled to realize the valve reset in the initial state.

[0022] In other embodiments of the utility model, the positions of the clamping block 301 and the clamping hole 501 can be interchanged.

[0023] In other embodiments of the present application, the reset elastic member 6 can also be replaced by a corrugated spring instead of a reset spring.

[0024] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application, but not limited, and other modifications or equivalent replacements of the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application.

Claims

1. A quick and reliable separate seal valve structure, characterized by: The utility model provides a valve, including inner joint (1), outer joint (2), the small diameter section of inner joint (1) is assembled in the large diameter section inside of outer joint (2) through first stopper (8), the inside of inner joint (1) is equipped with connecting sleeve (4), the small diameter section of connecting sleeve (4) is equipped with valve (5) and is equipped with first sealing ring (7) between the inner wall of valve (5) and the small diameter section outer wall of connecting sleeve (4);The inside of outer joint (2) is equipped with center joint (3), and the right end of center joint (3) extends to the inside of the small diameter section of connecting sleeve (4) and is equipped with second sealing ring (701) between the right end outer wall of center joint (3) and the small diameter section inner wall of connecting sleeve (4), and the right side of center joint (3) is buckle connection with valve (5);The outer wall of valve (5) is provided with stepped shaft (502), and the one end surface of stepped shaft (502) is equipped with reset elastic part (6) between the large diameter section of connecting sleeve (4) and is in compression state, and the left side of small diameter section of inner joint (1) is equipped with stepped groove (101) with the other end of stepped shaft (502) is adapted.

2. A quick and reliable separate seal valve structure according to claim 1, characterized in that: The right side outer wall of center joint (3) is equipped with the periphery distribution of several clamping blocks (301), and the end face of the left side of valve (5) is equipped with the periphery distribution and is used for the several clamping holes (501) of corresponding clamping block and is inserted, and the clamping hole (501) is formed through the cantilever of relative distribution.

3. A quick and reliable separate seal valve structure as claimed in claim 1, wherein: The right side outer wall of center joint (3) is equipped with the periphery distribution of several clamping blocks (301), and the end face of the left side of valve (5) is equipped with the periphery distribution and is used for the several clamping holes (501) of corresponding clamping block and is inserted, and the clamping hole (501) is formed through the cantilever of relative distribution.

4. The quick and reliable separate seal valve structure according to claim 1, characterized in that: The right side outer wall of center joint (3) is equipped with the periphery distribution of several clamping blocks (301), and the end face of the left side of valve (5) is equipped with the periphery distribution and is used for the several clamping holes (501) of corresponding clamping block and is inserted, and the clamping hole (501) is formed through the cantilever of relative distribution.

5. The quick and reliable separate seal valve structure according to claim 1, characterized in that: The reset elastic part (6) adopts reset spring.

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