Hydraulic combination valve and hydraulic system

Abstract

The utility model provides a hydraulic combination valve and a hydraulic system, and relates to the technical field of valves, the hydraulic combination valve comprises a base, a one-way valve module and a hydraulic control valve module, the one-way valve module and the hydraulic control valve module are arranged in the base, and the one-way valve module comprises a first flow inlet, a first flow outlet, a first valve body assembly and a channel; the hydraulic control valve module comprises a second flow inlet, a second flow outlet, a second valve body assembly, a valve rod and a sealing brake cavity, the first valve body assembly and the second valve body assembly each comprise a valve element and a spring, the valve element in the second valve body assembly is connected with the valve rod, and the channel is connected with a cavity where the first flow inlet and the valve rod are located. As long as two hydraulic combination valves are configured to have the function equivalent to that of four traditional valve bodies, telescopic movement of the hydraulic cylinder can be achieved, design, production and installation are quite easy and convenient, the early-stage installation efficiency is improved, the structural complexity of communication between parts and the valve bodies is reduced, and the difficulty of later-stage maintenance work is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially a kind of hydraulic combination valve and hydraulic system. BACKGROUND

[0002] In photovoltaic power generation system, angle adjustment of photovoltaic tracking support is generally realized by hydraulic system, and the commonly used hydraulic system has the following problems: a one-way valve and a hydraulic control one-way valve or an electromagnetic reversing valve are needed to realize the forward and reverse movement of hydraulic cylinder, the forward and reverse movement of hydraulic cylinder can realize the pushing and pulling back of load, corresponding to the angle adjustment of photovoltaic tracking support, when realized by one-way valve and hydraulic control one-way valve, two one-way valves and two hydraulic control one-way valves are needed to realize the extension and retraction of hydraulic cylinder, considering the installation of four valves and the communication between them, the production process is complex, which is not conducive to the further reduction of cost and the improvement of use reliability, and the present application is proposed for the above defects. SUMMARY

[0003] The utility model discloses a kind of hydraulic combination valve and hydraulic system, solve the valve structure, process complex, the problem that cost is difficult to further reduce in the hydraulic system used in photovoltaic tracking support in present stage.

[0004] To solve the above problems, the utility model provides a kind of hydraulic combination valve, including base and the one-way valve module and liquid control valve module being set in base, the one-way valve module includes inlet port one, outlet port one, valve body assembly one and passageway, the liquid control valve module includes inlet port two, outlet port two, valve body assembly two, valve rod and sealing brake cavity, the valve body assembly one and valve body assembly two all include valve core and spring, the valve core in the valve body assembly two is connected with valve rod, the passageway is connected inlet port one and sealing brake cavity, the sealing brake cavity is located between the base and valve rod, in working condition, fluid can reach sealing brake cavity by inlet port one, passageway, drive valve rod to move and open valve body assembly two, realize the function of hydraulic control one-way valve, valve rod moves and makes valve body assembly two open by overcoming spring force, so that inlet port two is communicated with outlet port two.

[0005] According to an embodiment of the utility model, sealing ring installation groove is arranged at inlet port one, outlet port one, inlet port two and outlet port two, for installing sealing ring, realize the sealing of interface.

[0006] According to an embodiment of the utility model, sealing ring is arranged on the valve rod, avoid the fluid circulating in passageway into the circulating space of inlet port two and outlet port two.

[0007] According to an embodiment of the utility model, inlet port one and inlet port two are arranged at the same side of base, facilitate installation.

[0008] According to an embodiment of the utility model, the flow inlet one and the flow outlet one are arranged on the same axis, simple structure, convenient for processing production.

[0009] According to an embodiment of the utility model, the diameter of the flow inlet one and the flow inlet two are different, which can distinguish the flow inlets and reduce the connection failure probability.

[0010] According to an embodiment of the utility model, the diameter of the flow outlet one and the flow outlet two are different.

[0011] A kind of hydraulic system, comprising above-mentioned hydraulic combination valve, still include oil tank, oil pump, overflow valve, hydraulic cylinder.

[0012] The utility model has the advantages that by being provided with check valve module and hydraulic control valve module in a base, hydraulic oil is communicated with flow outlet two by flow inlet one and passage control flow inlet two, the function of hydraulic control check valve is realized, after flow inlet two and flow outlet two are communicated, hydraulic oil flows through flow inlet two and flow outlet two, realizes the function of check valve, therefore, as long as the function of two hydraulic combination valves equivalent to traditional four valve bodies is configured, the extension and retraction of hydraulic cylinder can be realized, design, production and installation are very simple, improve early installation efficiency, reduce the complexity of structure of mutual communication between parts and valve body, reduce the difficulty of later maintenance work. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model is further described below in connection with drawings and examples.

[0014] Figure 1 It is whole structure schematic diagram for hydraulic combination valve;

[0015] Figure 2 It is cross section structure schematic diagram for hydraulic combination valve;

[0016] Figure 3 It is principle diagram for hydraulic system. DETAILED DESCRIPTION

[0017] The following description is only for disclosing the utility model so that those skilled in the art can implement the utility model. The examples in the following description are only as examples, and other obvious modifications can be thought by those skilled in the art. The basic principles defined in the following description can be applied to other embodiments, modification schemes, improvement schemes, equivalent schemes and other schemes without departing from the spirit and scope of the utility model.

[0018] A kind of hydraulic combination valve, as Figure 1 , including base 10 and being provided in base 10 check valve module 6 and hydraulic control valve module 7.

[0019] As Figure 2The one-way valve module comprises an inlet port 141, an outlet port 172, a valve body assembly 1 and a channel 18, wherein the inlet port 141 and the outlet port 172 are arranged on the same axis, the structure is simple and convenient for processing and production, the valve body assembly 1 is arranged in a flow channel formed between the inlet port 141 and the outlet port 172, and the channel 18 is connected with the flow channel.

[0020] The hydraulic control valve module comprises an inlet port 143, an outlet port 174, a valve body assembly 2, a sealing brake cavity 19 and a valve rod 15, the valve rod 15 is provided with a sealing ring 16, so that the fluid flowing in the channel 18 is prevented from entering the flow space of the inlet port 143 and the outlet port 174.

[0021] The channel 18 is arranged between the valve cavity formed by the inlet port 141 and the outlet port 172 and the sealing brake cavity 19 where the valve rod 15 is located, the structure is more compact, the channel branch 185 and the channel branch 186 are arranged in an up-down staggered mode and are connected with the channel 18 perpendicularly, the production and processing are facilitated, the overall weight of the valve body is reduced, and the diameters of the channel branch 185 and the channel branch 186 can be adjusted adaptively according to the control requirements.

[0022] The inlet port 141, the outlet port 172, the inlet port 143 and the outlet port 174 are all provided with a sealing ring mounting groove 12 for mounting a sealing ring to realize the sealing of the interface.

[0023] The inlet port 141 and the inlet port 143 are arranged on the same side of the base 10, facilitating installation.

[0024] The valve body assembly 1 and the valve body assembly 2 both comprise a valve core 11 and a spring 13.

[0025] The diameters of the inlet port 141 and the inlet port 143 are different, and the diameters of the outlet port 172 and the outlet port 174 are different, so that the inlet ports and the outlet ports can be distinguished conveniently and the probability of connection operation failure is reduced.

[0026] The valve core 11 in the valve body assembly 2 is connected with the valve rod 15, and the channel 18 connects the inlet port 141 and the cavity where the valve rod 15 is located.

[0027] The working process is as follows: hydraulic oil enters through the inlet port 141, pushes the valve core 11 of the valve body assembly 1 to overcome the spring force, realizes the communication between the inlet port 141 and the outlet port 172, and then the hydraulic oil reaches the sealing brake cavity 19 through the channel branch 185, the channel 18 and the channel branch 186, pushes the valve rod 15 to move upward, and then the valve core of the valve body assembly 2 is opened to overcome the spring force, so that the inlet port 143 and the outlet port 174 are communicated, and the function of the hydraulic control one-way valve is realized.

[0028] Wherein, the hydraulic oil is communicated with the outlet port two 174 through the inlet port one 141 and the passage 18 control inlet port two 143, that is, the function of the hydraulic control check valve is realized, the hydraulic oil is communicated through the inlet port one 141 and the outlet port one 172, and the function of the check valve is realized.

[0029] Therefore, as long as two hydraulic combination valves are configured to be equivalent to the functions of two check valves and two hydraulic control check valves, the extension and retraction movement of the hydraulic cylinder can be realized, the design, production and installation are very simple, the installation efficiency in the early stage is improved, the complexity of the structure of the communication between the parts and the valve body is reduced, and the difficulty of the maintenance work in the later stage is reduced.

[0030] A kind of hydraulic system, such as Figure 3 , comprising the hydraulic combination valve 1 described above, further comprising oil tank 2, oil pump 3, overflow valve 4 and hydraulic cylinder 5.

[0031] A kind of photovoltaic tracking system, comprising the hydraulic system described above.

[0032] Those skilled in the art should understand that the above description and the embodiments of the utility model shown in the drawings are only as examples, and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can be any deformation and modification without departing from the described principle.

Claims

1. A hydraulic combination valve, characterized in that: The invention comprises a base (10) and a one-way valve module and a hydraulic control valve module arranged in the base (10), wherein the one-way valve module comprises an inlet port 1 (141), an outlet port 1 (172), a valve body component 1 and a channel (18), and the hydraulic control valve module comprises an inlet port 2 (143), an outlet port 2 (174), a valve body component 2, a valve stem (15) and a sealed brake chamber (19), wherein the valve body component 1 and the valve body component 2 both comprise a valve core (11) and a spring (13), and the valve body component The valve core (11) in the second valve body is connected to the valve stem (15), and the channel (18) is connected to the inlet port 1 (141) and the sealing brake chamber (19). The sealing brake chamber (19) is located between the base (10) and the valve stem (15). In the working state, the fluid can reach the sealing brake chamber (19) through the inlet port 1 (141) and the channel (18), driving the valve stem (15) to move and open the valve body assembly 2, so that the inlet port 2 (143) is connected to the outlet port 2 (174).

2. The hydraulic combination valve according to claim 1, characterized in that: Sealing ring mounting grooves (12) are provided at the first inlet (141), the first outlet (172), the second inlet (143) and the second outlet (174).

3. The hydraulic combination valve according to claim 1, characterized in that: A sealing ring (16) is provided on the valve stem (15).

4. The hydraulic combination valve according to claim 1, characterized in that: The first inlet (141) and the second inlet (143) are arranged on the same side of the base (10).

5. The hydraulic combination valve according to any one of claims 1 to 4, characterized in that: The inlet port 1 (141) and the outlet port 1 (172) are arranged on the same axis.

6. The hydraulic combination valve according to claim 5, characterized in that: The diameters of the inlet 1 (141) and the inlet 2 (143) are different.

7. The hydraulic combination valve according to claim 6, characterized in that: The diameters of the outlet port 1 (172) and the outlet port 2 (174) are different.

8. A hydraulic system, characterized in that: The hydraulic combination valve comprises the hydraulic combination valve according to any one of claims 1 to 7.

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