Hydraulic cylinder and valve block integrated piece device

Abstract

The utility model discloses a hydraulic cylinder and valve block integrated piece device which comprises a body, an end cover, a piston, an actuating rod and a reversing valve element. A first blind hole is formed in the body, a piston and an actuating rod are installed in the first blind hole, and a double-acting hydraulic cylinder is formed. A second blind hole is further formed in the body, a reversing valve element is arranged in the second blind hole, and the reversing valve is formed. Therefore, according to the hydraulic cylinder and valve block integrated piece device, the double-acting hydraulic cylinder and the reversing valve are integrated and share the same body, and meanwhile the first oil way pipeline and the second oil way pipeline which are connected with the double-acting hydraulic cylinder and the reversing valve are integrated in the body; compared with the prior art that the double-acting hydraulic cylinder and the reversing valve are independently arranged and are connected through a connector and a pipeline, the hydraulic cylinder and valve block integrated piece device has the advantages that the steps of pipeline connection and connector connection are omitted, the installation procedure is simplified, the installation space is saved, and the fault occurrence rate is reduced.

Description

Technical Field

[0001] The present application relates to the field of valve body technology, and in particular to a hydraulic cylinder and valve block integrated device. Background Art

[0002] In related technologies, traditional hydraulic piping systems generally adopt a separate layout of the actuator cylinder and the hydraulic control device, which are connected by pipelines. There are many interfaces and the pipe layout is complicated, which makes it easy for the hydraulic working fluid to "leak". At the same time, it takes up a large installation space, has low reliability, and is not portable. Utility Model Content

[0003] The present invention provides a hydraulic cylinder and valve block assembly device that can solve the technical problems of the prior art, such as the multiple interfaces between the actuator cylinder and the hydraulic control device, the complex piping, the large installation space, and the low reliability. The technical solution is as follows:

[0004] and a valve body having a first end and a second end, and a valve body having a first end and a second end, and a valve body having a second end and a second end. and a tube connecting the discharging opening of the pump with the plug on a connecting rod and a pipe connecting the discharging opening of the pump with the plug connecting the discharging opening of the pump to form a tube. The tube connecting the discharging opening of the pump with the plug connecting the discharging opening is connected to the oil drain plug. The tube connecting the discharging opening of the pump with the plug connecting the discharging opening is connected to the oil drain plug.

[0005] Optionally, the main body further includes a third blind hole connected to the main oil return pipeline, the third blind hole has a second oil inlet and a second oil outlet, and a pressure relief valve core is provided in the third blind hole.

[0006] Optionally, a handle is provided on the side of the body.

[0007] Optionally, the main oil return pipeline is arranged in the handle.

[0008] Optionally, the central axis of the first blind hole and the central axis of the second blind hole are parallel and located in a first plane; and the center line of the handle is located in the first plane.

[0009] Optionally, the center line of the handle is in the first plane and extends perpendicular to the center axis of the first blind hole.

[0010] Optionally, the first acting end is a connecting plate protruding from the main body, and the connecting plate is provided with a first hinge hole; the second acting end is the free end of the acting rod, and the free end is provided with a second hinge hole; the center line of the first acting end and the center line of the second acting end are collinear.

[0011] Optionally, the central axis of the third blind hole is located in the first plane, and the central axis of the third blind hole is parallel to the central axis of the first blind hole.

[0012] Optionally, the total oil return pipeline and the total oil inlet pipeline are both located in the first plane, and the total oil return pipeline is located on the upper side of the total oil inlet pipeline.

[0013] Optionally, a quick-connect joint is provided at one end of the main oil inlet pipe for connecting to the oil tank, and a quick-connect joint is provided at one end of the main oil return pipe for connecting to the oil tank.

[0014] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0015] A hydraulic cylinder and valve block assembly assembly includes a body, an end cover, a piston, an actuating rod, and a reversing valve core. The body is provided with a first blind hole and has a first oil port and a second oil port communicating with the first blind hole. The first oil port is located near the closed end of the first blind hole, and the second oil port is located near the open end of the first blind hole. That is, the first oil port and the second oil port are located on either side of the piston. The piston and the actuating rod are located in the first blind hole. Thus, the body, the first blind hole, the first oil port, and the second oil port constitute a double-acting hydraulic cylinder. The body is also provided with a second blind hole and has a first working oil port, a second working oil port, a first oil inlet, and a second oil inlet communicating with the second blind hole. The reversing valve core is located in the second blind hole. The body, the second blind hole, the first working oil port, the second working oil port, the first oil inlet, the second oil inlet, and the reversing valve core constitute a reversing valve. Therefore, the integrated device of the present application integrates a double-acting hydraulic cylinder and a reversing valve, sharing the same body, and at the same time, the first oil circuit pipeline and the second oil circuit pipeline connecting the double-acting hydraulic cylinder and the reversing valve are integrated in the body. Therefore, compared with the related technology in which the double-acting hydraulic cylinder and the reversing valve are set separately and connected through joints and pipes, the hydraulic cylinder and valve block integrated device of the present application eliminates the steps of pipeline connection and interface connection, simplifies the installation process, saves installation space, and reduces the occurrence rate of failures.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 is a three-dimensional diagram of a hydraulic cylinder and valve block assembly provided in an embodiment of the present application;

[0019] Figure 2 1 is a top view of the main body of the hydraulic cylinder and valve block assembly device provided in an embodiment of the present application;

[0020] Figure 3 yes Figure 2 Cross-section at AA in the middle;

[0021] Figure 4 yes Figure 2 Cross-section at the middle BB;

[0022] Figure 5 is a cross-sectional view of the reversing valve core in the first working position of the hydraulic cylinder and valve block integrated device provided by an embodiment of the present application;

[0023] Figure 6 is a cross-sectional view of the reversing valve core in the second working position of the hydraulic cylinder and valve block assembly device provided by an embodiment of the present application;

[0024] Figure 7 It is a schematic diagram of the principle of the hydraulic cylinder and valve block integrated device provided in an embodiment of the present application.

[0025] Description of Reference Numerals

[0026] 1-main body; 101-first blind hole; 1011-first oil port; 1012-second oil port; 102-second blind hole; 1021-first working oil port; 1022-second working oil port; 1023-first oil outlet; 1024-first oil inlet; 103-first oil pipeline; 104-second oil pipeline; 105-first active end; 106-total oil inlet pipeline; 107-total oil return pipeline; 108-third blind hole; 1081-second oil inlet; 1082-second oil outlet; 109-connecting pipeline; 2-end cover; 3-piston; 4-acting rod; 401-second active end; 5-reversing valve core; 6-pressure relief valve core; 7-handle. DETAILED DESCRIPTION

[0027] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0028] In this disclosure, unless otherwise indicated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when in use. "Inside" and "outside" refer to the relative positions of the corresponding components themselves. Furthermore, the terms "first" and "second" used in this disclosure are intended to distinguish one element from another and do not convey sequential or significant meanings. In the following description, when referring to the drawings, unless otherwise indicated, identical reference numerals in different drawings indicate identical or similar elements.

[0029] refer to Figure 1 A hydraulic cylinder and valve block integrated device includes: a body 1, an end cover 2, a piston 3, an action rod 4 and a reversing valve core 5.

[0030] refer to Figures 2 to 6 , wherein the main body 1 has: a first blind hole 101, a second blind hole 102, a first oil pipeline 103, a second oil pipeline 104, a connecting pipeline 109, a first action end 105, a total oil inlet pipeline 106 and a total oil return pipeline 107.

[0031] refer to Figure 3 A first blind hole 101 extends from the upper surface of the main body 1 toward the interior of the main body 1. A first oil port 1011 is provided near the closed end of the first blind hole 101, and a second oil port 1012 is provided near the open end of the first blind hole 101. The open end of the first blind hole 101 has internal threads. The first blind hole 101 provided in the main body 1 can form the cylinder body of a double-acting hydraulic cylinder. The first oil port 1011 and the second oil port 1012 are respectively used to supply and discharge oil to and from the two sides of the piston 3.

[0032] refer to Figure 3 The second blind hole 102 extends from the upper surface of the body 1 to the inside of the body 1 , and the second blind hole 102 has a first working oil port 1021 , a second working oil port 1022 , a first oil outlet 1023 and a first oil inlet 1024 .

[0033] refer to Figure 3 The first oil line 103 connects the first oil port 1011 and the first working oil port 1021. The second oil line 104 connects the second oil port 1012 and the second working oil port 1022. The second blind hole 102 provided on the body 1 can constitute the valve body of the reversing valve.

[0034] refer to Figure 4 , the connecting pipe 109 connects the first oil outlet 1023 and the first working oil port.

[0035] refer to Figure 3One end of the main oil inlet pipe 106 is connected to the first oil inlet 1024, and the other end is used to connect to the oil outlet of the oil tank. One end of the main oil return pipe 107 is connected to the first oil outlet 1023, and the other end is used to connect to the oil return port of the oil tank.

[0036] refer to Figure 3 The end cover 2 has an external thread matching the internal thread. The end cover 2 is threadedly connected to the open end of the first blind hole 101. The middle of the end cover 2 has a protruding hole.

[0037] refer to Figure 5 and Figure 6 The piston 3 is movably arranged in the first blind hole 101, and one side of the piston 3 is connected to the action rod 4, which extends from the extension hole. The end of the action rod 4 extending from the extension hole of the end cover 2 is the second action end 401; the first action end 105 is located on the lower surface of the body 1.

[0038] The reversing valve core 5 is movably arranged in the second blind hole 102, and has a first position and a second position. When the reversing valve core 5 is in the first position, Figure 5 The first oil inlet 1024 and the first oil port 1011 are connected through the first oil pipeline 103, and the second oil port 1012 and the first oil outlet 1023 are connected through the second oil pipeline 104. At this time, the hydraulic oil from the oil tank enters the first blind hole 101 below the piston 3 through the first oil inlet 1024 and the first oil port 1011. The hydraulic oil pushes the piston 3 toward the open end of the first blind hole 101, driving the action rod 4 to extend.

[0039] refer to Figure 6 When the reversing valve core 5 is in the second position, the first oil inlet 1024 and the second oil port 1012 are connected through the second oil pipeline 104. Figure 2 and Figure 4 Because the connecting pipe 109 connects the first oil outlet 1023 and the first working oil port 1021, the first oil port 1021 is connected via the first oil line pipe 103, the connecting pipe 109, and the first oil outlet 1023. At this time, hydraulic oil from the oil tank enters the space above the piston 3 and the first blind hole 101 through the first oil inlet 1024 and the second oil port 102. The hydraulic oil below the piston 3 flows back to the oil tank through the first oil port 1011, the first oil line pipe 103, the connecting pipe 109, and the first oil outlet 1023. The downward movement of the piston 3 drives the actuating rod 4 to retract. The extension and retraction of the actuating rod 4 can be used to perform tasks.

[0040] In the present application, a first blind hole 101 is provided on the main body 1, and a first oil port 1011 and a second oil port 1012 are connected to the first blind hole 101, and the first oil port 1011 is close to the closed end of the first blind hole 101, and the second oil port 1012 is close to the open end of the first blind hole 101, that is, the first oil port 1011 and the second oil port 1012 are distributed on both sides of the piston 3. A piston 3 and an action rod 4 are arranged in the first blind hole 101. In this way, the main body 1 and the first blind hole 101, the first oil port 1011 and the second oil port 1012 constitute a double-acting hydraulic cylinder. The main body 1 is also provided with a second blind hole 102, and has a first working oil port 1021, a second working oil port 1022, a second oil outlet 1023 and a first oil inlet 1024 connected to the second blind hole 102. A reversing valve core 5 is arranged in the second blind hole 102. The main body 1 and the second blind hole 102, the first working oil port 1021, the second working oil port 1022, the second oil outlet 1023, the first oil inlet 1024 and the reversing valve core 5 constitute a reversing valve. Therefore, the integrated device of the present application integrates a double-acting hydraulic cylinder and a reversing valve, sharing the same main body 1, and at the same time, the first oil circuit pipeline 103 and the second oil circuit pipeline 104 connecting the double-acting hydraulic cylinder and the reversing valve are integrated in the main body 1. Therefore, compared with the related art in which the double-acting hydraulic cylinder and the reversing valve are separately set and connected through joints and pipes, the hydraulic cylinder and valve block integrated device of the present application eliminates the steps of pipeline connection and interface connection, simplifies the installation process, saves installation space, and reduces the occurrence rate of failures.

[0041] It should be noted that the embodiment of the present application is illustrated by taking a two-position four-way valve as an example. The first blind hole 101 and the reversing valve core 5 inserted into the first blind hole 101 can also constitute a three-way valve or a four-way valve, and its operation mode can be manual, motorized, hydraulic, electric, pneumatic, etc., all of which fall within the scope of protection of this patent.

[0042] In the examples of this application, reference is made to Figure 3 As shown, the body 1 further includes a third blind hole 108 connected to the main oil return pipe 107, and the third blind hole 108 has a second oil inlet 1081 and a second oil outlet 1082. Figure 5 and Figure 6 As shown, a pressure relief valve core 6 is provided in the third blind hole 108. Thus, the integrated device of the present application not only integrates the double-acting hydraulic cylinder and the reversing valve, but also integrates the pressure relief valve. Figure 5 and Figure 6As shown, the third blind hole 108 is also connected to the main oil inlet pipe 106. When hydraulic oil with a pressure higher than the set pressure is supplied to the main oil inlet pipe 106 of the integrated device, the pressure relief valve core 6 can be driven to operate, thereby discharging some hydraulic oil from the channel between the third blind hole 108 and the main oil inlet pipe 106 to the main oil return pipe 107, thereby protecting the integrated device and extending the service life of the integrated device. It should be noted that the embodiment of the present application uses a pressure relief valve as an example for illustrative purposes. In other embodiments, the pressure relief valve can also be of other forms, and this application does not limit this.

[0043] In the examples of this application, reference is made to Figure 1 、 Figure 5 and Figure 6 As shown, a handle 7 is provided on the side of the body 1. By providing the handle 7 on the side of the body 1, it is easier for the operator to hold the integrated device when using it, improving the stability of the operation. The handle 7 can be set at any position of the body 1 according to actual conditions.

[0044] In the examples of this application, reference is made to Figure 5 and Figure 6 As shown, in order to fully utilize the space of the integrated device, the main oil return pipeline 107 is set in the handle 7.

[0045] In the examples of this application, reference is made to Figures 1 to 5 As shown, the central axis of the first blind hole 101 and the central axis of the second blind hole 102 are parallel and lie within a first plane. The centerline of the handle 7 lies within the first plane and extends perpendicularly to the central axis of the first blind hole 101. Thus, the working rod 4, the reversing valve core 5, and the handle 7 of the double-acting hydraulic cylinder are located within the same plane. When the handle 7 is gripped, the reversing valve core 5 is positioned for thumb movement, allowing the operator to control the extent of insertion of the reversing valve core 5 into the second blind hole 102 with their thumb, thereby controlling the movement speed and force of the working rod 4.

[0046] In the examples of this application, reference is made to Figures 1 to 6 As shown, the first active end 105 is a connecting plate protruding from the body 1 and provided with a first hinge hole. The second active end 401 is the free end of the active rod 4 and provided with a second hinge hole. The centerline of the first active end 105 and the centerline of the second active end 401 are collinear. By providing the first hinge hole on the first active end 105 and the second hinge hole on the second active end 401, it is possible to facilitate connection and fixation with the device being operated.

[0047] In the examples of this application, reference is made to Figure 1 and Figure 2As shown, the central axis of the third blind hole 108 is located in the first plane and is parallel to the central axis of the first blind hole 101. Thus, the pressure relief valve core 6, the reversing valve core 5, and the handle 7 are located in the same plane. When a worker grips the handle 7, the pressure relief valve core 6 and the reversing valve core 5 are arranged in front of the thumb, making it easy for the worker to control the reversing valve core 5 or the pressure relief valve core 6 with their thumb.

[0048] In the examples of this application, reference is made to Figure 1 、 Figure 5 and Figure 6 As shown, the main oil return pipe 107 and the main oil inlet pipe 106 are both in the first plane, and the main oil return pipe 107 is located on the upper side of the main oil inlet pipe 106. In this way, the internal space of the body 1 can be fully utilized, and the oil inlet pipe and the oil return pipe connected to the oil tank are relatively neat.

[0049] In the examples of this application, reference is made to Figure 1 、 Figure 5 and Figure 6 As shown, in order to facilitate the connection with the oil inlet pipe of the oil tank, the main oil inlet pipe 106 is provided with a quick connector at one end for connecting to the oil tank. Similarly, in order to facilitate the connection with the oil return pipe of the oil tank, the main oil return pipe 107 is provided with a quick connector at one end for connecting to the oil tank.

[0050] refer to Figure 7 , Figure 7 This is a schematic diagram of the principle of the hydraulic cylinder and valve block integrated device provided in an embodiment of the present application, in which P is the oil inlet and T is the oil return port.

[0051] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0053] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A hydraulic cylinder and valve block integrated device, characterized in that: include: Body (1), end cover (2), piston (3), action rod (4) and reversing valve core (5); The body (1) comprises: a first blind hole (101), the first blind hole (101) extending from the upper surface of the body (1) toward the interior of the body (1), a first oil port (1011) being provided near the closed end of the first blind hole (101), a second oil port (1012) being provided near the open end of the first blind hole (101), and the open end of the first blind hole (101) having an internal thread; a second blind hole (102), the second blind hole (102) extending from the upper surface of the body (1) toward the interior of the body (1), the second blind hole (102) having a first working oil port (1021), a second working oil port (1022), a first oil outlet (1023), and a first oil inlet (1024); a first oil pipeline (103), the first oil pipeline (103) connecting the first oil port (1011) and the first working oil port (1021); a second oil pipeline (104), the second oil pipeline (104) connecting the second oil port (1012) and the second working oil port (1022); a connecting pipe (109), the connecting pipe (109) connecting the first oil outlet (1023) and the first working oil port (1021); a first active end (105), the first active end (105) being located on the lower surface of the body (1); a main oil inlet pipe (106), one end of which is in communication with the first oil inlet (1024) and the other end of which is connected to the oil outlet of the oil tank; A main oil return pipe (107), one end of which is in communication with the first oil outlet (1023) and the other end of which is connected to the oil return port of the oil tank; The end cover (2) has an external thread matching the internal thread, the end cover (2) is threadedly connected to the open end of the first blind hole (101), and the middle portion of the end cover (2) has a protruding hole; The piston (3) is movably disposed in the first blind hole (101), one side of the piston (3) is connected to the action rod (4), the action rod (4) extends from the extension hole, and the end of the action rod (4) extending from the extension hole is a second action end (401); The reversing valve core (5) is movably arranged in the second blind hole (102) and has a first working position and a second working position. When the reversing valve core (5) is in the first working position, the first oil inlet (1024) and the first oil port (1011) are communicated through a first oil pipeline (103), and the second oil port (1012) and the first oil outlet (1023) are communicated through a second oil pipeline (104); When the reversing valve core (5) is in the second working position, the first oil inlet (1024) and the second oil port (1012) are connected through the second oil pipeline (104), and the first oil port (1011) is connected through the first oil pipeline (103), the connecting pipeline (109) and the first oil outlet (1023).

2. The hydraulic cylinder and valve block assembly according to claim 1, characterized in that: The body (1) further comprises a third blind hole (108) connected to the main oil return pipe (107), the third blind hole (108) having a second oil inlet (1081) and a second oil outlet (1082), and a pressure relief valve core (6) is provided in the third blind hole (108).

3. The hydraulic cylinder and valve block assembly according to claim 2, characterized in that: A handle (7) is provided on the side of the body (1).

4. The hydraulic cylinder and valve block assembly according to claim 3, characterized in that: The main oil return pipeline (107) is arranged in the handle (7).

5. The hydraulic cylinder and valve block assembly device according to claim 4, characterized in that: The central axis of the first blind hole (101) and the central axis of the second blind hole (102) are parallel and located in a first plane; the center line of the handle (7) is located in the first plane.

6. The hydraulic cylinder and valve block assembly according to claim 5, characterized in that: The center line of the handle (7) is located in the first plane and extends perpendicular to the center axis of the first blind hole (101).

7. The hydraulic cylinder and valve block assembly according to claim 6, characterized in that: The first action end (105) is a connecting plate protruding from the body (1), and the connecting plate is provided with a first hinge hole; the second action end (401) is the free end of the action rod (4), and the free end is provided with a second hinge hole; the center line of the first action end (105) and the center line of the second action end (401) are collinear.

8. The hydraulic cylinder and valve block assembly according to claim 7, characterized in that: The central axis of the third blind hole (108) is located in the first plane, and the central axis of the third blind hole (108) is parallel to the central axis of the first blind hole (101).

9. The hydraulic cylinder and valve block assembly according to claim 8, characterized in that: The total oil return pipeline (107) and the total oil inlet pipeline (106) are both located in the first plane, and the total oil return pipeline (107) is located on the upper side of the total oil inlet pipeline (106).

10. The hydraulic cylinder and valve block assembly according to claim 1, characterized in that: One end of the main oil inlet pipe (106) for connecting to the oil tank is provided with a quick-connect joint, and one end of the main oil return pipe (107) for connecting to the oil tank is provided with a quick-connect joint.

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