Manual hydraulic push rod

Abstract

The utility model discloses a manual hydraulic push rod which comprises a cylinder body, a piston is arranged on the cylinder body in a sliding mode, the space in the cylinder body is divided into a rod cavity and a rodless cavity by the piston, a piston rod is arranged on the piston, one end of the piston rod is located outside the cylinder body, and the other end of the piston rod is located outside the rodless cavity. The hydraulic control system comprises a rodless cavity, a rod cavity, a hand-operated direction valve, a hand-operated hydraulic pump, a first one-way valve, a second one-way valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a hand-operated direction valve, an oil tank and the hand-operated hydraulic pump, the rodless cavity is connected with the oil tank through a pipeline, the first one-way valve is arranged between the rodless cavity and the oil tank, and the rod cavity is connected with the hand-operated direction valve through a liquid return pipe. A second one-way valve is arranged between the liquid return pipe and the hand-operated direction valve, and the hand-operated hydraulic pump is connected with the hand-operated direction valve. The push rod has the following beneficial effects that the hand-operated direction valve is arranged, different flow directions of oil can be realized through the hand-operated direction valve, so that the piston rod can extend or retract relative to the cylinder body, and the reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic auxiliary equipment field especially, relate to a manual hydraulic push rod. BACKGROUND

[0002] The photovoltaic panel of photovoltaic power station adjusts angle through photovoltaic tracking support, and the adjustment mode of tracking support has automatic adjustment and manual adjustment, manual adjustment is according to seasonal variation, manually adjusts the angle of tracking support, and current manual device is hand push rod and hand turbine worm, and there is no manual hydraulic push rod for photovoltaic industry, and hand push rod and hand turbine worm realize the output of thrust by speed reduction ratio, need larger hand shaking force or adopt very big speed reduction ratio to realize big thrust, and if speed reduction ratio is too big, then manual adjustment speed is very slow, and the efficiency of manual adjustment of the two modes is not high, and workers are easily tired, in order to improve the adjustment efficiency, the patent announcement document CN216343130U discloses a manual hydraulic cylinder that can be used for photovoltaic power station, but this manual hydraulic cylinder needs to rotate the handle in different directions to realize elongation or contraction, which is very inconvenient. SUMMARY

[0003] The utility model provides a manual hydraulic push rod for the above problems, sets up manual reversing valve, and the different flow directions of oil can be realized through the manual reversing valve, so that the extension or retraction of the plug rod relative to the cylinder body can be realized, and the reliability is strong.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A manual hydraulic push rod, including cylinder, the piston is slidably arranged on the cylinder, the piston separates the space in the cylinder into a rod cavity and a rodless cavity, a plug rod is arranged on the piston, one end of the plug rod is located outside the cylinder, further including a first check valve, a second check valve, a first hydraulic control check valve, a second hydraulic control check valve, a manual reversing valve, an oil tank and a hand-operated hydraulic pump, the rodless cavity is connected with the oil tank through a pipeline, and a first check valve is arranged between the rodless cavity and the oil tank, the rod cavity is connected with the manual reversing valve through a return pipe, and a second check valve is arranged between the return pipe and the manual reversing valve, the hand-operated hydraulic pump is connected with the manual reversing valve, the rodless cavity is connected with the oil tank through the first hydraulic control check valve, the rod cavity is connected with the oil tank through the second hydraulic control check valve, the first hydraulic control check valve is connected with the manual reversing valve, and the second hydraulic control check valve is connected with the rodless cavity.

[0006] In the manual hydraulic push rod, the manual reversing valve is adopted, and the manual reversing valve has high reliability, and still has good reliability in a strong electromagnetic environment.The manual reversing valve can control the opening and closing of the first hydraulic control check valve and the second hydraulic control check valve, so that the liquid flow direction of the rod cavity and the rodless cavity can be controlled, and the liquid flow direction of different cavities to the oil tank is realized to realize the extension or retraction of the plug rod.In the manual hydraulic push rod, the manual hydraulic pump is used to pump the oil in the oil tank to the rod cavity or the rodless cavity.

[0007] In summary, in the manual hydraulic push rod, the manual reversing valve is arranged, different flow directions of the oil can be realized through the manual reversing valve, so that the extension or retraction of the plug rod relative to the cylinder body is realized, and the reliability is high.

[0008] Optionally, the liquid return pipe is located outside the cylinder body.

[0009] Optionally, the first lifting lug is arranged on the cylinder body.

[0010] Optionally, the second lifting lug is arranged on the plug rod.

[0011] The first lifting lug and the second lifting lug are used for hinged connection with other parts.

[0012] Optionally, the manual reversing valve is provided with a handle.

[0013] The user can realize the reversing process of the manual reversing valve through the handle.

[0014] Optionally, the manual hydraulic pump is provided with a rocker.

[0015] The user can pump the oil in the oil tank to the rod cavity or the rodless cavity by rocking the rocker.

[0016] Optionally, the shape and size of the first check valve are consistent with those of the second check valve.

[0017] Optionally, the shape and size of the first hydraulic control check valve are consistent with those of the second hydraulic control check valve.

[0018] The manual reversing valve is arranged, different flow directions of the oil can be realized through the manual reversing valve, so that the extension or retraction of the plug rod relative to the cylinder body is realized, and the reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 is a schematic diagram of the principle of the manual hydraulic push rod;

[0021] Figure 2 is a schematic diagram of the structure of the manual hydraulic push rod.

[0022] In the figure, the reference signs are: 1, cylinder; 101, rod cavity; 102, rodless cavity; 103, piston; 2, plug rod; 3, return pipe; 401, first hydraulic control check valve; 402, second hydraulic control check valve; 5, oil tank; 601, first check valve; 602, second check valve; 7, manual reversing valve; 701, 8, hand-operated hydraulic pump; 801, 901, first lifting lug; 902, second lifting lug. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the content of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the parts shown in the drawings are not drawn in accordance with the actual proportion relationship. The technology, method and equipment known to those skilled in the art can not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] As shown in the accompanying Figure 1 and the accompanying Figure 2As shown, a kind of manual hydraulic push rod, including cylinder 1, piston 103 is slidably arranged on cylinder 1, piston 103 separates the space in cylinder 1 into rod cavity 101 and rodless cavity 102, piston 103 is provided with plug rod 2, one end of plug rod 2 is located outside cylinder 1, still include first one-way valve 601, second one-way valve 602, first hydraulic control one-way valve 401, second hydraulic control one-way valve 402, manual reversing valve 7, oil tank 5 and hand-operated hydraulic pump 8, rodless cavity 102 is connected with oil tank 5 by pipeline, and first one-way valve 601 is arranged between rodless cavity 102 and oil tank 5, rod cavity 101 is connected with manual reversing valve 7 by return pipe, and second one-way valve 602 is arranged between return pipe 3 and manual reversing valve, hand-operated hydraulic pump 8 is connected with manual reversing valve 7, rodless cavity 102 is connected with oil tank 5 by first hydraulic control one-way valve 401, rod cavity 101 is connected with oil tank 5 by second hydraulic control one-way valve 402, first hydraulic control one-way valve 401 is connected with manual reversing valve 7, and second hydraulic control one-way valve 402 is connected with rodless cavity 102.

[0027] In the manual hydraulic push rod, the manual reversing valve 7 is used, and the working reliability of the manual reversing valve 7 is strong, and the manual reversing valve 7 still has good reliability in a strong electromagnetic environment. The manual reversing valve 7 can control the opening and closing of the first hydraulic control one-way valve 401 and the second hydraulic control one-way valve 402, so that the liquid flow direction of the rod cavity 101 and the rodless cavity 102 can be controlled. The liquid flow direction of different cavities to the oil tank 5 is used to realize the extension or retraction of the plug rod 2. In the manual hydraulic push rod, the hand-operated hydraulic pump 8 is used to pump the oil in the oil tank 5 to the rod cavity 101 or the rodless cavity 102.

[0028] In summary, in the manual hydraulic push rod, the manual reversing valve 7 is arranged, and different flow directions of the oil can be realized by the manual reversing valve 7, so that the extension or retraction of the plug rod 2 relative to the cylinder 1 can be realized, and the reliability is strong.

[0029] The working of the push rod is described in detail in combination with the drawings. Figure 1 The working of the push rod is described in detail in combination with the drawings.

[0030] The manual reversing valve 7 is located at the leftmost working position, the hydraulic oil of the hand-operated hydraulic pump passes through the second one-way valve 602, controls the second hydraulic control one-way valve 402 to be opened, the pressure of the hand-operated hydraulic pump drives the rod cavity 101 (the oil in the oil tank 5 enters the rod cavity 101), the piston 103 moves from the rod cavity 101 to the rodless cavity 102, and the plug rod 2 is retracted.

[0031] The manual reversing valve 7 is located at the rightmost working position, the hydraulic oil of the hand-operated hydraulic pump 8 passes through the first one-way valve 601, controls the first hydraulic control one-way valve 401 to be opened, the pressure of the hand-operated hydraulic pump drives the rodless cavity 102 (the oil in the oil tank 5 enters the rodless cavity 102), the piston 103 moves from the rodless cavity 102 to the rod cavity 101, and the plug rod 2 is extended.

[0032] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The liquid return pipe is located outside the cylinder body 1.

[0033] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The first lifting lug 901 is arranged on the cylinder body 1.

[0034] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The second lifting lug 902 is arranged on the plug rod 2.

[0035] The first lifting lug 901 and the second lifting lug 902 are used for hinged connection with other parts.

[0036] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The handle 701 is arranged on the manual reversing valve 7.

[0037] The user can realize the reversing process of the manual reversing valve 7 through the handle 701.

[0038] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The lever 801 is arranged on the hand-operated hydraulic pump 8.

[0039] The user can pump the oil in the oil tank 5 to the rod cavity 101 or the rodless cavity 102 by shaking the lever.

[0040] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The first one-way valve 601 is consistent with the second one-way valve 602 in shape and size.

[0041] As shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The first hydraulic control one-way valve 401 is consistent with the second hydraulic control one-way valve 402 in shape and size.

[0042] The above-described embodiments only express some embodiments of the present application, which are described in detail and in detail, but cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A manual hydraulic push rod comprising a cylinder, a piston is slidably arranged on the cylinder, the piston separates a space in the cylinder into a rod cavity and a rodless cavity, a plug rod is arranged on the piston, one end of the plug rod is located outside the cylinder, characterized in that, It also comprises a first one-way valve, a second one-way valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a manual reversing valve, an oil tank and a hand-operated hydraulic pump, the rodless cavity is connected with the oil tank through a pipeline, and the first one-way valve is arranged between the rodless cavity and the oil tank, the rod cavity is connected with the manual reversing valve through a return pipeline, and the second one-way valve is arranged between the return pipeline and the manual reversing valve, the hand-operated hydraulic pump is connected with the manual reversing valve, the rodless cavity is connected with the oil tank through the first hydraulic control one-way valve, the rod cavity is connected with the oil tank through the second hydraulic control one-way valve, the first hydraulic control one-way valve is connected with the manual reversing valve, and the second hydraulic control one-way valve is connected with the rodless cavity.

2. A manual hydraulic push rod according to claim 1, characterized in that The return pipeline is located outside the cylinder body.

3. A manual hydraulic push rod according to claim 1, wherein The cylinder body is provided with a first lifting lug.

4. A manual hydraulic push rod according to claim 1, wherein The plug rod is provided with a second lifting lug.

5. A manual hydraulic push rod according to claim 1, wherein The manual reversing valve is provided with a handle.

6. A manual hydraulic push rod according to claim 1, wherein The hand-operated hydraulic pump is provided with a rocker.

7. A manual hydraulic push rod as claimed in claim 1, wherein The first one-way valve is consistent in shape and size with the second one-way valve.

8. A manual hydraulic push rod according to claim 1, wherein The first hydraulic control one-way valve is consistent in shape and size with the second hydraulic control one-way valve.

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