Pneumatic hydraulic station of feeding platform

Abstract

The utility model provides a pneumatic hydraulic station of a feeding platform, which comprises an oil tank, an oil path block arranged on the oil tank, a one-way valve arranged in the oil path block, an electromagnetic valve matched with the oil path block and a hydraulic pressure gauge, and an oil outlet path and an oil return path which are communicated with the oil tank are arranged in the oil path block. An oil outlet hole communicated with the oil outlet way and an oil return hole communicated with the oil return way are formed in one end of the oil way block, an oil inlet is formed in the top of the oil tank, the one-way valve is communicated with the oil outlet way, and an oil inlet way communicated with the oil tank and the oil outlet way is formed in the bottom end of the oil way block. The oil way block is provided with an air cylinder used for conveying hydraulic oil in the oil tank to the oil outlet way through the oil inlet way, a piston connected with an air cylinder shaft of the air cylinder is arranged in the oil inlet way, the end, close to the oil tank, of the oil inlet way is connected with a one-way blocking valve, and an oil inlet pipe communicated with the one-way blocking valve is arranged in the oil tank. The utility model has the advantages of small volume and small occupied space.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic technology, specifically to a pneumatic hydraulic station for a feeding platform. Background Technology

[0002] A hydraulic power unit is generally an electromechanical device that provides power for the operation of machinery in industrial production. It supplies oil according to the flow direction, pressure, and flow rate required by the drive unit. It is suitable for various machines where the drive unit and the hydraulic power unit are separate. By connecting the hydraulic power unit to the drive unit with oil pipes, the hydraulic system can achieve various prescribed actions. Existing hydraulic power units include an oil tank, a manifold block, a check valve located within the manifold block, a solenoid valve that works with the manifold block, a hydraulic gauge, and a hydraulic motor mounted on the oil tank to deliver oil from the tank to the oil outlet of the manifold block. Using a hydraulic motor to deliver hydraulic oil requires a large oil tank to house the motor, resulting in a large overall size of the hydraulic power unit, making it unsuitable for installation in confined spaces. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a pneumatic-hydraulic station for a feeding platform that is small in size and occupies little space.

[0004] To address the above problems, the following technical solution is provided: a pneumatic-hydraulic station for a feeding platform, comprising an oil tank, an oil manifold block mounted on the oil tank, a one-way valve disposed within the oil manifold block, a solenoid valve cooperating with the oil manifold block, and a hydraulic gauge. The oil manifold block has an oil outlet and a return oil path connected to the oil tank. One end of the oil manifold block has an oil outlet hole connected to the oil outlet path and a return oil hole connected to the return oil path. The top of the oil tank has an oil inlet. The one-way valve is connected to the oil outlet path. The bottom of the oil manifold block has an oil inlet path connecting the oil tank and the oil outlet path. The oil manifold block is equipped with a cylinder for transporting hydraulic oil from the oil tank to the oil outlet path via the oil inlet path. The oil inlet path contains a piston connected to the cylinder shaft of the cylinder. A one-way shut-off valve is connected to the end of the oil inlet path near the oil tank. The oil tank contains an oil inlet pipe connected to the one-way shut-off valve.

[0005] In the above structure, the cylinder controls the piston to move upward relative to the oil inlet path, drawing oil from the tank into the oil inlet path through the oil inlet pipe. Then, the cylinder controls the piston to move downward relative to the oil inlet path, cooperating with a one-way shut-off valve to squeeze the oil in the oil inlet path into the oil outlet path. The cylinder controls the piston to move back and forth, thus supplying oil to the oil outlet path. By mounting the cylinder on the oil manifold block and using it for oil supply, the entire mechanism of this invention can be integrated onto the oil manifold block, thereby reducing the overall size and space occupied, making it suitable for different installation environments and expanding its applicability. The one-way shut-off valve prevents oil entering the oil inlet path from flowing back into the tank, thus preventing oil supply failure and improving the reliability of this invention.

[0006] The present invention is further configured such that a filter cover is provided inside the oil tank, and a snap-fit ​​mechanism connected to the oil inlet pipe is provided on the filter cover.

[0007] In the above structure, the hydraulic oil in the tank can be filtered by the filter cover, preventing impurities in the oil flowing back into the tank from being squeezed into the oil inlet circuit, which could cause piston damage or blockage of the oil outlet circuit, thus improving the reliability of this invention. The snap-fit ​​mechanism facilitates the installation and removal of the filter cover, making it easy to disassemble and clean, thereby improving the convenience of this invention.

[0008] The present invention is further configured such that the snap-fit ​​mechanism includes a fixing head fixed to the top of the filter cover, a connecting pipe snapped onto the fixing head, and a clamping assembly located between the fixing head and the connecting pipe for clamping the oil inlet pipe. The fixing head has a connecting hole in the axial direction that is adapted to the oil inlet pipe and communicates with the inner cavity of the filter cover.

[0009] In the above structure, the oil inlet pipe is inserted into the connection hole and then clamped by the clamping component to fix the oil inlet pipe, which also facilitates the disassembly and assembly of the oil inlet pipe, thereby improving the stability of oil supply and the convenience of filter cover disassembly and assembly of this utility model.

[0010] The present invention is further configured such that the fixing head has an installation hole for engaging with the connecting pipe, and the clamping assembly includes a first clamping plate and a second clamping plate arranged radially relative to the fixing head. The second clamping plate has a slot that crosses with the first clamping plate. One end of the first clamping plate and the second clamping plate has an arc-shaped opening, and the arc-shaped openings of the first clamping plate and the second clamping plate engage with each other to clamp the oil inlet pipe. The outer side of the end of the first clamping plate and the second clamping plate with the arc-shaped opening is provided with a fixing post, and a positioning post is provided on the first clamping plate and the second clamping plate at a position corresponding to the fixing post. A spring is sleeved on the fixing post.

[0011] In the above structure, pressing the outer ends of the first and second clamping plates causes their inner ends to shift in the opposite direction, thereby increasing the distance between the arc ends. The spring is compressed. After the oil inlet pipe is inserted from the arc end into the connecting hole, releasing the pressure on the first and second clamping plates allows the arc ends of the first and second clamping plates to clamp the oil inlet pipe using the elastic force of the spring, thus enabling the installation and removal of the oil inlet pipe. The slot facilitates the installation of the first clamping plate and its clamping engagement, thereby improving the reliability of this invention. The fixed and positioning posts facilitate the positioning and installation of the spring, thus improving the ease of assembly of the snap-fit ​​mechanism.

[0012] The present invention is further provided that the fixed column has a clearance hole in the axial direction corresponding to the positioning column.

[0013] In the above structure, by opening a clearance hole, the positioning post can be inserted into the clearance hole of the fixing post when the first clamping plate and the second clamping plate are squeezed, thereby reducing the space occupied by the first clamping plate and the second clamping plate in the radial direction relative to the fixing head, reducing the volume of the snap-fit ​​mechanism, and making the snap-fit ​​mechanism more stable.

[0014] The present invention is further configured such that a plug block is provided at the port of the slot on the second clamping plate and is connected to the second clamping plate by screws, and the positioning post of the second clamping plate is disposed on the plug block.

[0015] In the above structure, the stopper can limit the first clamping plate and increase the comfort when pressing the second clamping plate.

[0016] The present invention is further provided that a sliding groove is provided in the radial direction at the end of the fixed head to slide and cooperate with the first clamping plate and the second clamping plate.

[0017] In the above structure, the sliding groove can limit the movement of the first clamping plate and the second clamping plate, thereby improving their stability during displacement and facilitating the positioning and installation of the first clamping plate and the second clamping plate.

[0018] The present invention is further configured such that a limiting post is provided on the sliding groove, and a limiting groove adapted to the limiting post is provided on both the first clamping plate and the second clamping plate.

[0019] In the above structure, the displacement of the first clamping plate and the second clamping plate can be limited by the cooperation of the limiting groove and the limiting post, so as to avoid the swinging and unstable clamping of the oil inlet pipe, thus improving the reliability of the clamping mechanism.

[0020] The present invention is further configured such that a through-hole is provided in the radial direction of the connecting pipe for the first clamping plate and the second clamping plate to pass through.

[0021] In the above structure, the through opening facilitates the installation of the clamping components and limits their movement, thereby improving the ease of installation and the stability of the clamping mechanism. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 4 for Figure 3 A schematic diagram of the structure at point V.

[0026] Figure 5 This is a schematic diagram of the structure of the filter cover and the snap-fit ​​mechanism in this utility model.

[0027] Figure 6 This is a structural diagram showing the disassembled snap-fit ​​mechanism in this utility model.

[0028] Figure 7 This is a schematic diagram of the clamping component in this utility model.

[0029] The labels in the diagram have the following meanings: 1-oil tank; 2-oil circuit block; 3-one-way valve; 4-solenoid valve; 5-hydraulic gauge; 21-oil outlet; 22-oil outlet hole; 23-oil return hole; 11-oil inlet; 24-oil inlet; 6-cylinder; 61-piston; 7-one-way shut-off valve; 8-oil inlet pipe; 12-filter cover; 9-clamping mechanism; 91-fixed head; 92-connecting pipe; 93-clamping assembly; 911-connecting hole; 912-mounting hole; 931-first clamping plate; 932-second clamping plate; 9321-slot; 01-arc opening; 02-fixing post; 03-positioning post; 04-spring; 021-displacement hole; 10-plug; 913-slide groove; 914-limiting post; 05-limiting groove; 921-through opening. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in this embodiment of the invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. The coordination of the solenoid valve, oil pressure gauge and oil circuit block is a conventional technology and will not be described in detail here.

[0032] like Figures 1 to 7The pneumatic-hydraulic station for a feeding platform shown includes an oil tank 1, an oil passage block 2 mounted on the oil tank 1, a one-way valve 3 disposed within the oil passage block 2, a solenoid valve 4 cooperating with the oil passage block 2, and a hydraulic gauge 5. The oil passage block 2 has an oil outlet 21 and a return oil passage connected to the oil tank 1. One end of the oil passage block 2 has an oil outlet 22 connected to the oil outlet 21 and a return oil outlet 23 connected to the return oil passage. The top of the oil tank 1 has an oil inlet 11. The one-way valve... Valve 3 is connected to oil outlet 21. The bottom end of the oil passage block 2 is provided with an oil inlet passage 24 that connects the oil tank 1 and the oil outlet 21. The oil passage block 2 is provided with a cylinder 6 for transporting the hydraulic oil in the oil tank 1 to the oil outlet 21 through the oil inlet passage 24. The oil inlet passage 24 is provided with a piston 61 connected to the cylinder 6 shaft of the cylinder 6. The end of the oil inlet passage 24 near the oil tank 1 is connected with a one-way shut-off valve 7. The oil tank 1 is provided with an oil inlet pipe 8 connected to the one-way shut-off valve 7.

[0033] In the above structure, cylinder 6 controls piston 61 to move upward relative to oil inlet 24, drawing oil from oil tank 1 into oil inlet 24 through oil inlet pipe 8. Then, cylinder 6 controls piston 61 to move downward relative to oil inlet 24, cooperating with one-way shut-off valve 7 to squeeze oil in oil inlet 24 into oil outlet 21. Cylinder 6 controls piston 61 to move back and forth, thus supplying oil to oil outlet 21. By mounting cylinder 6 on oil manifold block 2 and supplying oil through cylinder 6, the entire mechanism of this invention can be integrated onto oil manifold block 2, thereby reducing the overall size of the invention, minimizing space occupation, and making it suitable for different installation environments, thus expanding the scope of application of this invention. The one-way shut-off valve 7 prevents oil entering oil inlet 24 from flowing back into oil tank 1, which could lead to oil supply failure, improving the reliability of this invention.

[0034] In this embodiment, the oil tank 1 is provided with a filter cover 12, and the filter cover 12 is provided with a snap-fit ​​mechanism 9 connected to the oil inlet pipe 8.

[0035] In the above structure, the filter cover 12 filters the hydraulic oil in the oil tank 1, preventing impurities from being squeezed into the oil inlet 24 and causing damage to the piston 61 or blockage of the oil outlet 21, thus improving the reliability of this invention. The snap-fit ​​mechanism 9 facilitates the installation and removal of the filter cover 12, making it easier to disassemble and clean, thus improving the convenience of this invention.

[0036] In this embodiment, the snap-fit ​​mechanism 9 includes a fixing head 91 fixed to the top of the filter cover 12, a connecting pipe 92 snapped onto the fixing head 91, and a clamping assembly 93 located between the fixing head 91 and the connecting pipe 92 for clamping the oil inlet pipe 8. The fixing head 91 has a connecting hole 911 in the axial direction that is adapted to the oil inlet pipe 8 and communicates with the inner cavity of the filter cover 12.

[0037] In the above structure, by inserting the oil inlet pipe 8 into the connection hole 911 and then clamping the oil inlet pipe 8 with the clamping component 93, the oil inlet pipe 8 is fixed, and the oil inlet pipe 8 can be easily disassembled and assembled, which improves the stability of oil supply and the ease of disassembly and assembly of the filter cover 12.

[0038] In this embodiment, the fixing head 91 has a mounting hole 912 that engages with the connecting pipe 92. The clamping assembly 93 includes a first clamping plate 931 and a second clamping plate 932 arranged radially relative to the fixing head 91. The second clamping plate 932 has a slot 9321 that crosses with the first clamping plate 931. One end of the first clamping plate 931 and the second clamping plate 932 has an arc opening 01. The arc openings 01 of the first clamping plate 931 and the second clamping plate 932 engage with each other to clamp the oil inlet pipe 8. The outer side of the end of the first clamping plate 931 and the second clamping plate 932 with the arc opening 01 is provided with a fixing post 02. The first clamping plate 931 and the second clamping plate 932 are provided with a positioning post 03 at a position corresponding to the fixing post 02. A spring 04 is sleeved on the fixing post 02.

[0039] In the above structure, pressing the outer ends of the first clamping plate 931 and the second clamping plate 932 causes their inner ends to shift in the opposite direction, thereby increasing the distance between the arc openings 01 and 02. The spring 04 is compressed. After the oil inlet pipe 8 is inserted from the arc opening 01 into the connecting hole 911, the pressure on the first clamping plate 931 and the second clamping plate 932 is released. Through the elastic force of the spring 04, the arc openings 01 of the first clamping plate 931 and the second clamping plate 932 clamp the oil inlet pipe 8, thus enabling the installation and removal of the oil inlet pipe 8. The slot 9321 facilitates the installation of the first clamping plate 931 and its clamping engagement, thereby improving the reliability of this invention. The fixed post 02 and the positioning post 03 facilitate the positioning and installation of the spring 04, thereby improving the ease of assembly of the snap-fit ​​mechanism 9.

[0040] In this embodiment, the fixed column 02 has a clearance hole 021 in the axial direction corresponding to the positioning column 03.

[0041] In the above structure, by opening the clearance hole 021, the positioning post 03 can be inserted into the clearance hole 021 of the fixing post 02 when the first clamping plate 931 and the second clamping plate 932 are pressed, thereby reducing the space occupied by the first clamping plate 931 and the second clamping plate 932 in the radial direction relative to the fixing head 91, reducing the volume of the snap-fit ​​mechanism 9, and making the snap-fit ​​mechanism 9 more stable.

[0042] In this embodiment, a plug 10 is provided on the second clamping plate 932 at the port of the slot 9321, which is connected to the second clamping plate 932 by screws, and the positioning post 03 of the second clamping plate 932 is provided on the plug 10.

[0043] In the above structure, the stopper 10 can limit the first clamping plate 931 and increase the comfort when pressing the second clamping plate 932.

[0044] In this embodiment, a sliding groove 913 is provided in the radial direction at the end of the fixing head 91 to slide and cooperate with the first clamping plate 931 and the second clamping plate 932.

[0045] In the above structure, the sliding groove 913 can limit the first clamping plate 931 and the second clamping plate 932, thereby improving their stability during displacement and facilitating the positioning and installation of the first clamping plate 931 and the second clamping plate 932.

[0046] In this embodiment, the slide 913 is provided with a limiting post 914, and the first clamping plate 931 and the second clamping plate 932 are both provided with limiting grooves 05 that are adapted to the limiting post 914.

[0047] In the above structure, the limiting groove 05 cooperates with the limiting post 914 to limit the displacement of the first clamping plate 931 and the second clamping plate 932, so as to avoid them from swinging and causing unstable clamping of the oil inlet pipe 8, thus improving the reliability of the clamping mechanism 9.

[0048] In this embodiment, the connecting pipe 92 has a through opening 921 in the radial direction for the first clamping plate 931 and the second clamping plate 932 to pass through.

[0049] In the above structure, the through opening 921 facilitates the installation of the clamping component 93 and limits the clamping component 93, thereby improving the ease of installation of the clamping mechanism and the stability of the structure.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatic-hydraulic station for a feeding platform, comprising an oil tank, an oil manifold block mounted on the oil tank, a one-way valve disposed within the oil manifold block, a solenoid valve cooperating with the oil manifold block, and a hydraulic gauge, wherein the oil manifold block has an oil outlet and a return oil path connected to the oil tank, one end of the oil manifold block has an oil outlet hole connected to the oil outlet path and a return oil hole connected to the return oil path, the top of the oil tank has an oil inlet, and the one-way valve is connected to the oil outlet path, characterized in that: The bottom end of the oil passage block is provided with an oil inlet passage connecting the oil tank and the oil outlet passage. The oil passage block is provided with a cylinder for transporting the hydraulic oil in the oil tank to the oil outlet passage through the oil inlet passage. The oil inlet passage is provided with a piston connected to the cylinder shaft of the cylinder. The end of the oil inlet passage near the oil tank is connected to a one-way shut-off valve. The oil tank is provided with an oil inlet pipe connected to the one-way shut-off valve.

2. The pneumatic-hydraulic station for a feeding platform according to claim 1, characterized in that: The oil tank is equipped with a filter cover, and the filter cover is equipped with a snap-fit ​​mechanism that connects to the oil inlet pipe.

3. The pneumatic-hydraulic station for a feeding platform according to claim 2, characterized in that: The clamping mechanism includes a fixing head fixed to the top of the filter cover, a connecting pipe clamped to the fixing head, and a clamping assembly located between the fixing head and the connecting pipe for clamping the oil inlet pipe. The fixing head has a connecting hole in the axial direction that is adapted to the oil inlet pipe and communicates with the inner cavity of the filter cover.

4. The pneumatic-hydraulic station for a feeding platform according to claim 3, characterized in that: The fixing head has a mounting hole for engaging with the connecting pipe. The clamping assembly includes a first clamping plate and a second clamping plate arranged radially relative to the fixing head. The second clamping plate has a slot that intersects with the first clamping plate. One end of both the first and second clamping plates has an arc-shaped opening. The arc-shaped openings of the first and second clamping plates engage with each other to clamp the oil inlet pipe. The outer side of the arc-shaped opening of both the first and second clamping plates has a fixing post. The first and second clamping plates have positioning posts at positions corresponding to the fixing posts. A spring is sleeved on the fixing post.

5. A pneumatic-hydraulic station for a feeding platform according to claim 4, characterized in that: The fixed column has a clearance hole in the axial direction corresponding to the positioning column.

6. The pneumatic-hydraulic station for a feeding platform according to claim 4, characterized in that: The second clamp plate has a plug at the port of the slot that is connected to the second clamp plate by screws, and the positioning post of the second clamp plate is disposed on the plug.

7. A pneumatic-hydraulic station for a feeding platform according to claim 6, characterized in that: The end of the fixed head is provided with a sliding groove in the radial direction to slide and cooperate with the first clamping plate and the second clamping plate.

8. A pneumatic-hydraulic station for a feeding platform according to claim 7, characterized in that: The slide is provided with a limiting post, and both the first clamping plate and the second clamping plate are provided with limiting grooves that are adapted to the limiting post.

9. A pneumatic-hydraulic station for a feeding platform according to claim 7, characterized in that: The connecting pipe has a through-hole in the radial direction for the first clamping plate and the second clamping plate to pass through.

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