CN213176921U

CN213176921U - Hydraulic one-way valve assembly

Info

Publication number: CN213176921U
Application number: CN202022027753.5U
Authority: CN
Inventors: 颜宣伟
Original assignee: Zhejiang Xiongpeng Machinery Co ltd
Current assignee: Zhejiang Xiongpeng Machinery Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-11
Anticipated expiration: 2030-09-16

Abstract

The utility model provides a hydraulic check valve assembly belongs to hydraulic pressure accessory technical field. The hydraulic check valve solves the problem of leakage at the joint of the plug and the valve body in the existing hydraulic check valve. This hydraulic check valve assembly includes check valve body one, check valve body two, the right-hand member of check valve body one and the left end of check valve body two can be dismantled the connection with the axial, be provided with the through-flow seat of direction in the check valve body one, the case that sets up on the through-flow seat of direction has in the check valve body two, be provided with compression spring between case and the through-flow seat of direction, this case supports through compression spring and the through-flow seat elasticity of direction and leans on the cooperation, the case leans on sealedly with the inner port of the water supply connector of check valve body two under compression spring's elastic force effect. The utility model discloses simple structure, structural stability is high, connects stably, and sealed effect is better, and the seepage condition can not appear in this case and water supply connector's inner port, long service life, convenient to use.

Description

Hydraulic one-way valve assembly

Technical Field

The utility model belongs to the technical field of the hydraulic pressure accessory, a hydraulic pressure check valve assembly is related to.

Background

The existing hydraulic one-way valve is used as an auxiliary element in a hydraulic system and plays a role in connection cut-off or through flow in hydraulic transmission. In the flow control, a one-way control valve for flow control is needed, the number of branches is large, and a one-way control valve on a corresponding branch is needed to be installed when each branch controls the flow.

In view of the above situation, a hydraulic check valve appears in the market, for example, the chinese patent number is: 201420414037.4 relates to a hydraulic pipe joint capable of adjusting flow, which comprises a valve body, wherein the valve body is a cross-shaped middle hole pipe, the lower end hole of the valve body is an inlet, the left end is an outlet, a movable adjusting block is arranged in the upper end hole of the valve body, the bottom surface of the adjusting block is a chamfer plane, and an adjusting movable component is connected to the adjusting block; the valve body is provided with a sunken step hole from the right end, a hollow movable valve element is arranged in the step hole, the left end face of the valve element is a chamfered surface and corresponds to the bottom surface of the adjusting block, a spring and a plug are arranged at the right end of the valve element, one end of the spring is tightly attached to the valve element, the other end of the spring is tightly attached to the plug, the plug is fixed on the valve body, and a round hole penetrating through the valve element is formed in the position, corresponding to the inlet of the valve body.

In the structure, the plug is arranged at the right end of the spare valve element, the right end of the valve element is sealed by the plug, a spring is arranged between the plug and the valve element for preventing the plug and the valve body from being spirally loosened, the connection structure of the plug and the valve body is stable, but the sealing structure of the plug and the valve body is poor, the leakage is easily caused at the connection part of the plug and the valve body, and when the plug is fixed on the valve body for a long time, the plug can rust on the valve body, the quality of liquid in the valve body is influenced, and the use is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, case and water supply connector's the hydraulic pressure check valve assembly of the seepage condition can not appear in the inner port.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a hydraulic check valve assembly, is including the check valve body one, the check valve body two that all are the tube-shape, the left end of check valve body one be equipped with water connectors, the right-hand member of check valve body two be equipped with water connectors, the left end of right-hand member of check valve body one and the left end of check valve body two can dismantle the connection with the axial, its characterized in that, one of check valve body in be provided with the through-flow seat of direction, two of check valve body in have the case that sets up on the through-flow seat of direction, case and direction through-flow seat between be provided with compression spring, this case supports through compression spring and the through-flow seat elasticity of direction and leans on the cooperation, the case under compression spring's elastic force effect and the inner mouth of water connectors of check valve body two.

When the hydraulic pressure of the water inlet joint of the first check valve body is smaller than the elastic force of the compression spring, the valve core is in sealing support against the inner port of the water inlet joint of the second check valve body, and the water outlet joint of the first check valve body and the water inlet joint of the second check valve body are closed; the sealing and plugging effect is good, the inner ports of the valve core and the water inlet joint cannot leak, and the use is convenient.

In the hydraulic check valve assembly, the guide through-flow seat comprises an annular seat body, a guide post which extends coaxially towards one side is arranged on the annular seat body, the valve core comprises a conical body, a guide sleeve which extends coaxially towards one side is arranged on the conical body, the shape, size and guide sleeve of the guide post are matched, and when the valve core is arranged on the guide through-flow seat, the guide post is inserted in the guide sleeve and is in sliding guide fit with the guide sleeve. The guide sleeve of the valve core is in guide sliding fit with the guide column of the guide through-flow seat, so that the stability of the valve core during axial displacement can be ensured, and the valve core is stable against the sealing structure at the inner port of the water inlet joint of the second one-way valve body.

In the above hydraulic check valve assembly, the compression spring is sleeved on the guide sleeve of the valve core, one end of the compression spring elastically abuts against the annular seat body of the guide through-flow seat, and the other end of the compression spring elastically abuts against the conical body of the valve core. The purpose of this is: can effectively prevent the radial displacement of the compression spring during compression and extension, and has stable structure.

In the hydraulic check valve assembly, an inner axial abutting step is formed between the water outlet joint and the first check valve body, the annular seat body of the guide through-flow seat is positioned on the inner axial abutting step, and when the first check valve body and the second check valve body are coaxially and fixedly connected, the right end face of the second check valve body and the inner axial abutting step of the first check valve body form a relative abutting against of the annular seat body of the guide through-flow seat, so that the annular seat body of the guide through-flow seat is relatively limited and fixed between the first check valve body and the second check valve body. The annular seat body of the guide through-flow seat is fixed between the first one-way valve body and the second one-way valve body in a stable structure, and the annular seat body of the guide through-flow seat can be effectively prevented from axially moving between the first one-way valve body and the second one-way valve body.

In the hydraulic one-way valve assembly, an elastic ring is embedded at the corner of the annular seat body of the guide through-flow seat, and the annular seat body of the guide through-flow seat is elastically abutted and matched with the inner axial abutting step through the elastic ring. The purpose of this is to make: the annular seat body and the inner axial abutting step of the guide through-flow seat have the function of elastic buffering when abutting against the step, and the annular seat body and the inner axial abutting step of the guide through-flow seat are prevented from abutting against abrasion.

In the hydraulic one-way valve assembly, an inner conical abutting step is formed between the water inlet connector and the second one-way valve body, the conical surface of the conical body of the valve core is matched with the conical surface of the inner conical abutting step, and the conical body of the valve core abuts against the inner conical abutting step to form abutting seal. By means of the abutting of the conical surfaces, the abutting area of the valve core and the inner cone against the step is increased, and the sealing effectiveness of the valve core and the inner cone is ensured.

In the hydraulic one-way valve assembly, the inner conical abutting step is embedded with a sealing ring with a conical surface, and when the conical body of the valve core abuts against the inner conical abutting step, the sealing ring and the conical body of the valve core elastically abut against to form sealing. The purpose of this is to ensure the effectiveness of the abutting seal of the spool and the internal taper against the step, the seal structure being stable.

In the hydraulic one-way valve assembly, the guide sleeve of the valve core is further sequentially sleeved with a sealing ring and a baffle ring, the other end of the compression spring elastically acts on the baffle ring, and the baffle ring abuts against the sealing ring to enable the sealing ring and the inner cone to abut against the step to be sealed. The purpose of this is: the valve core and the inner cone are abutted against the step to assist in abutting against and sealing through the sealing ring and the baffle ring, so that the valve core and the inner cone are abutted against the step to have better sealing effect.

In the hydraulic one-way valve assembly, the sealing ring and the baffle ring are arranged in the same diameter, the diameter of the sealing ring is larger than that of the conical body of the valve core, and the abutting surface of the sealing ring and the inner conical abutting step is a conical surface. The purpose of setting up like this is that the sealed effect that leans on of step is supported to make sealing ring and interior toper better, ensures that sealing ring and interior toper support the sealed validity of step.

Compared with the prior art, the hydraulic one-way valve assembly has the advantages that: simple structure, structural stability is high, connects stably, and sealed effect is better, and the seepage condition can not appear in this case and water supply connector's inner port, long service life, convenient to use.

Drawings

Fig. 1 is a schematic sectional structure view of the hydraulic check valve assembly.

In the figure, 1, a one-way valve body I; 2. a one-way valve body II; 3. a water outlet joint; 4. a water inlet joint; 5. a compression spring; 6. an annular base; 7. a guide post; 8. a conical body; 9. a guide sleeve; 10. an elastic ring; 11. a seal ring; 12. a seal ring; 13. and (4) a baffle ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the hydraulic one-way valve assembly mainly comprises a one-way valve body 1 and a two-way valve body 2 which are all cylindrical, a water outlet connector 3 is arranged at the left end of the one-way valve body 1, a water inlet connector 4 is arranged at the right end of the two-way valve body 2, the right end of the one-way valve body 1 and the left end of the two-way valve body 2 are coaxially detachably connected, a guide through-flow seat is arranged in the one-way valve body 1, a valve core arranged on the guide through-flow seat is arranged in the two-way valve body 2, a compression spring 5 is arranged between the valve core and the guide through-flow seat, the valve core is elastically abutted against the guide through-flow seat through the compression spring 5, and the valve core is abutted against and sealed with the inner port of.

During actual manufacturing, the guide through-flow seat mainly comprises an annular seat body 6, a guide post 7 which extends coaxially towards one side is arranged on the annular seat body 6, the valve core comprises a conical body 8, a guide sleeve 9 which extends coaxially towards one side is arranged on the conical body 8, the shape and size of the guide post 7 are matched with those of the guide sleeve 9, and when the valve core is arranged on the guide through-flow seat, the guide post 7 is inserted into the guide sleeve 9 and is in sliding guide fit with the guide sleeve 9; the compression spring 5 is sleeved on the guide sleeve 9 of the valve core, one end of the compression spring 5 is elastically abutted against the annular seat body 6 of the guide through-flow seat, and the other end of the compression spring 5 is elastically abutted against the conical body 8 of the valve core.

When the one-way valve body I1 and the one-way valve body II 2 are coaxially and fixedly connected, the right end face of the one-way valve body II 2 and the inner axial of the one-way valve body I1 abut against the step to form opposite abutting against of the annular seat body 6 of the guide through-flow seat, so that the annular seat body 6 of the guide through-flow seat is relatively limited and fixed between the one-way valve body I1 and the one-way valve body II 2; specifically speaking: an elastic ring 10 is embedded at the corner of the annular seat body 6 of the guide through-flow seat, and the annular seat body 6 of the guide through-flow seat is elastically abutted and matched with the inner axial abutting step through the elastic ring 10.

During actual manufacturing, an inner conical abutting step is formed between the water inlet connector 4 and the second one-way valve body 2, the conical surface of the conical body 8 of the valve core is matched with the conical surface of the inner conical abutting step, and the conical body 8 of the valve core abuts against the inner conical abutting step to form abutting seal; specifically speaking: the inner conical abutting step is embedded with a sealing ring 11 with a conical surface, and when the conical body 8 of the valve core abuts against the inner conical abutting step, the sealing ring 11 and the conical body 8 of the valve core elastically abut against to form sealing.

During actual manufacturing, a sealing ring 12 and a baffle ring 13 are sequentially sleeved on the guide sleeve 9 of the valve core, the other end of the compression spring 5 elastically acts on the baffle ring 13, and the baffle ring 13 abuts against the sealing ring 12 to enable the sealing ring 12 and the inner conical shape to abut against a step for sealing; specifically speaking: the diameters of the sealing ring 12 and the baffle ring 13 are the same, the diameter of the sealing ring 12 is larger than that of the conical body 8 of the valve core, and the abutting surface of the sealing ring 12 and the inner conical abutting step is a conical surface.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A hydraulic one-way valve assembly comprises a one-way valve body I (1) and a one-way valve body II (2) which are all cylindrical, the left end of the one-way valve body I (1) is provided with a water outlet joint (3), the right end of the one-way valve body II (2) is provided with a water inlet joint (4), the right end of the one-way valve body I (1) is coaxially and detachably connected with the left end of the one-way valve body II (2), it is characterized in that a guide through-flow seat is arranged in the one-way valve body I (1), a valve core arranged on the guide through-flow seat is arranged in the one-way valve body II (2), a compression spring (5) is arranged between the valve core and the guide through-flow seat, the valve core is elastically abutted and matched with the guide through-flow seat through a compression spring (5), and the valve core is abutted and sealed with an inner port of a water inlet joint (4) of the second check valve body (2) under the action of elastic force of the compression spring (5).

2. The hydraulic check valve assembly according to claim 1, characterized in that the pilot through-flow seat comprises an annular seat body (6), the annular seat body (6) is provided with a pilot post (7) which coaxially extends towards one side, the valve core comprises a conical body (8), the conical body (8) is provided with a pilot sleeve (9) which coaxially extends towards one side, the shape and size of the pilot post (7) are matched with the pilot sleeve (9), and when the valve core is arranged on the pilot through-flow seat, the pilot post (7) is inserted into the pilot sleeve (9) and is in sliding pilot fit with the pilot sleeve (9).

3. The hydraulic check valve assembly as recited in claim 2, characterized in that the compression spring (5) is sleeved on the guide sleeve (9) of the valve core, one end of the compression spring (5) elastically abuts against the annular seat body (6) of the guide through-flow seat, and the other end of the compression spring (5) elastically abuts against the conical body (8) of the valve core.

4. The hydraulic check valve assembly according to claim 3, wherein an inner axial abutting step is formed between the water outlet joint (3) and the first check valve body (1), the annular seat body (6) of the through-flow guide seat is positioned on the inner axial abutting step, when the first check valve body (1) and the second check valve body (2) are coaxially and fixedly connected, the right end face of the second check valve body (2) and the inner axial abutting step of the first check valve body (1) form a relative abutting against of the annular seat body (6) of the through-flow guide seat, so that the annular seat body (6) of the through-flow guide seat is relatively limited and fixed between the first check valve body (1) and the second check valve body (2).

5. The hydraulic check valve assembly according to claim 4, characterized in that the corner of the annular seat body (6) of the through-flow guide seat is embedded with an elastic ring (10), and the annular seat body (6) of the through-flow guide seat is elastically abutted and matched with the inner axial abutting step through the elastic ring (10).

6. The hydraulic one-way valve assembly according to claim 5, wherein an inner conical abutting step is formed between the water inlet connector (4) and the two one-way valve bodies (2), the conical surface of the conical body (8) of the valve core is matched with the conical surface of the inner conical abutting step, and the conical body (8) of the valve core abuts against the inner conical abutting step to form abutting seal.

7. The hydraulic check valve assembly according to claim 6, characterized in that the inner conical abutting step is embedded with a sealing ring (11) with a conical surface, and when the conical body (8) of the spool abuts against the inner conical abutting step, the sealing ring (11) and the conical body (8) of the spool elastically abut to form a seal.

8. The hydraulic one-way valve assembly according to claim 7, wherein the guide sleeve (9) of the valve core is further sequentially sleeved with a sealing ring (12) and a baffle ring (13), the other end of the compression spring (5) elastically acts on the baffle ring (13), and the baffle ring (13) abuts against the sealing ring (12) to enable the sealing ring (12) and the inner conical shape to abut against the step for sealing.

9. The hydraulic one-way valve assembly according to claim 8, wherein the diameter of the sealing ring (12) and the diameter of the retaining ring (13) are the same, the diameter of the sealing ring (12) is larger than that of the conical body (8) of the valve core, and the abutting surface of the sealing ring (12) and the inner conical abutting step is a conical surface.