Quick-closing valve oil cylinder assembly

Abstract

The utility model relates to the technical field of oil cylinders, and discloses a quick-closing valve oil cylinder assembly which comprises an oil cylinder shell, the left side of the oil cylinder shell is communicated with a pressure stabilizing cylinder, an oil inlet is formed in the top end of the right side of the outer wall of the pressure stabilizing cylinder, and a pressure top plate is connected to the lower middle portion of the inner wall of the oil cylinder shell in a sliding mode. A top rod is fixedly connected to the bottom end of the pressure top plate, a rotating shaft is arranged in the middle of the right side of the oil cylinder shell, a reversing rod is fixedly connected to the right side of the rotating shaft, a reversing ball is fixedly connected to the left side of the rotating shaft, and the reversing ball is arranged in the middle of the inner wall of the oil cylinder shell. The right side of the top wall and the right side of the bottom wall of the reversing ball are each provided with a straight-through groove, and the two straight-through grooves communicate with each other. According to the hydraulic oil cylinder, the reversing rod is operated to enable the reversing ball fixedly connected with the left side of the rotating shaft to rotate, so that different flow direction states are achieved, control over hydraulic oil and flow direction switching are achieved, and the requirement for rapid closing of the oil cylinder is met.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to a quick - closing valve oil cylinder assembly. Background Art

[0002] An oil cylinder assembly is a device that can adjust its length and height by extending and contracting. The pressure oil input by the hydraulic system enters the oil cylinder, pushing the piston to move, thereby realizing the output of linear motion and completing the transmission of force and displacement. By using this energy conversion function of the oil cylinder, actions such as the lifting of the boom and the excavation of the bucket can be achieved.

[0003] The quick - closing valve oil cylinder assembly can realize the opening and closing actions of the quick - closing valve within an extremely short time, quickly respond to the emergency situation of the system. Through the precise control of the hydraulic system, the accurate adjustment of the opening degree of the quick - closing valve can be achieved, meeting the flow control requirements under different working conditions.

[0004] The existing quick - closing valve oil cylinder assembly is connected to the valve stem of the quick - closing valve through a piston rod, thereby driving the opening and closing of the quick - closing valve. The spring provides auxiliary closing force and reset force. Since the quick - closing valve needs to be connected to the piston through a connecting rod, in the case of an emergency closing of the quick - closing valve, the effect of instant blocking cannot be achieved. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a quick - closing valve oil cylinder assembly, aiming to improve the problem that the quick - closing valve needs to be connected to the piston through a connecting rod and cannot achieve the effect of instant blocking in the case of an emergency closing of the quick - closing valve.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A quick - closing valve oil cylinder assembly includes an oil cylinder housing. The left side of the oil cylinder housing is communicated with a pressure - stabilizing cylinder. The right - hand top end of the outer wall of the pressure - stabilizing cylinder is provided with an oil inlet. The middle - lower part of the inner wall of the oil cylinder housing is slidably connected with a pressure top plate. The bottom end of the pressure top plate is fixedly connected with a push rod. The middle part of the right side of the oil cylinder housing is provided with a rotating shaft. The right side of the rotating shaft is fixedly connected with a reversing rod. The left side of the rotating shaft is fixedly connected with a reversing ball. The reversing ball is arranged in the middle of the inner wall of the oil cylinder housing. The right side of the top wall and the right side of the bottom wall of the reversing ball are both provided with straight - through grooves, and the two straight - through grooves are communicated with each other. The left side of the top wall and the left side of the bottom wall of the reversing ball are both provided with blocking - through grooves, and the two blocking - through grooves are communicated with each other. The top wall of the pressure - stabilizing cylinder is provided with an automatic oil - cut - off mechanism.

[0007] As a further description of the above technical solution:

[0008] The automatic fuel cut-off mechanism includes a sealed top seat. A sliding cylinder is fixedly connected to the outer side of the bottom wall of the sealed top seat. A sliding shaft is slidably connected to the middle of the inner wall of the sliding cylinder. The bottom end of the sliding shaft is fixedly connected to a sliding pressure plate, and the sliding pressure plate is slidably connected to the inner wall of a voltage stabilizing cylinder. Adjusting bolts are threadedly connected to the middle and lower parts on the left and right sides of the sliding cylinder. Adjacent ends of the two adjusting bolts are fixedly connected with damping pieces. A pressure sensor is fixedly connected to the middle of the bottom wall of the sealed top seat. A blocking assembly is arranged on the top wall of the oil cylinder housing, and the pressure sensor is electrically connected to the blocking assembly.

[0009] As a further description of the above technical solution:

[0010] The blocking assembly includes a moving push rod. A plurality of fixing bolts penetrate through the bottom of the moving push rod, and the bottom ends of the plurality of fixing bolts are threadedly connected to the periphery of the top wall of the oil cylinder housing. A blocking and passing column is fixedly connected to the middle of the bottom wall of the moving push rod, and the blocking and passing column is slidably connected to the upper middle part of the inner wall of the oil cylinder housing.

[0011] As a further description of the above technical solution:

[0012] The right end of the reversing rod is fixedly connected with a rubber sleeve, and the outer wall of the rubber sleeve adopts a frosted process.

[0013] As a further description of the above technical solution:

[0014] The bottom end of the ejector rod is fixedly connected with a lifting ring, and the lifting ring is vertically fixedly connected to the bottom end of the ejector rod.

[0015] As a further description of the above technical solution:

[0016] The right end of the oil inlet is fixedly connected with a connecting flange, and the connecting flange can be connected to other flanges.

[0017] As a further description of the above technical solution: ]>

[0018] Both the outer walls of the reversing rod and the rubber sleeve adopt a smooth design.

[0019] As a further description of the above technical solution:

[0020] Both the bottom ends of the oil cylinder housing and the voltage stabilizing cylinder are fixedly connected with fixed bottom plates, and mounting holes are opened at the four corners of the top wall of the fixed bottom plates.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, by operating the reversing rod to drive the rotation of the rotating shaft, the reversing ball fixedly connected to the left side of the rotating shaft also rotates accordingly. The blocking and through groove at its bottom communicates with the inner wall of the pressure stabilizing cylinder, and the blocking and through groove at its top communicates with the middle upper part of the oil cylinder housing, thereby realizing different flow states, achieving the control and flow direction switching of the hydraulic oil, so as to meet the rapid closing of the oil cylinder.

[0023] 2. In the present utility model, the hydraulic oil generates an upward pressure on the sliding pressure plate. When the pressure of the hydraulic oil in the pressure stabilizing cylinder reaches a certain level, the pressure acts on the pressure sensor in the middle of the bottom wall of the sealing top seat, transmits the signal to the blocking component electrically connected to it, and blocks the pressure in a timely manner, ensuring the safe and stable operation of the entire quick-closing valve oil cylinder assembly. Description of the Drawings

[0024] Figure 1 Is a perspective view of a quick-closing valve oil cylinder assembly proposed by the present utility model;

[0025] Figure 2 Is a front view of a quick-closing valve oil cylinder assembly proposed by the present utility model;

[0026] Figure 3 Is a cross-sectional view of the sliding cylinder of a quick-closing valve oil cylinder assembly proposed by the present utility model;

[0027] Figure 4 Is a structural schematic diagram of the blocking and through column of a quick-closing valve oil cylinder assembly proposed by the present utility model;

[0028] Figure 5 Is a cross-sectional view of the oil cylinder housing of a quick-closing valve oil cylinder assembly proposed by the present utility model;

[0029] Figure 6 Is a cross-sectional view of the reversing ball of a quick-closing valve oil cylinder assembly proposed by the present utility model.

[0030] Legend Explanation:

[0031] 1. Oil cylinder housing; 2. Automatic oil cut-off mechanism; 201. Sealing top seat; 202. Sliding cylinder; 203. Sliding shaft; 204. Sliding pressure plate; 205. Adjusting bolt; 206. Damping piece; 207. Pressure sensor; 3. Pressure stabilizing cylinder; 4. Oil inlet; 5. Pressure top plate; 6. Thrust rod; 7. Rotating shaft; 8. Reversing rod; 9. Reversing ball; 10. Straight through groove; 11. Blocking and through groove; 12. Moving push rod; 13. Fixed bolt; 14. Blocking and through column; 15. Rubber sleeve; 16. Suspension ring; 17. Connecting flange; 18. Fixed bottom plate; 19. Mounting hole. Detailed Embodiment

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] Referring to Figure 1 , Figure 5 and Figure 6 , an embodiment provided by the present utility model: a quick-closing valve oil cylinder assembly, including an oil cylinder housing 1, a pressure stabilizing cylinder 3 is connected to the left side of the oil cylinder housing 1, an oil inlet 4 is opened at the top right of the outer wall of the pressure stabilizing cylinder 3, a pressure top plate 5 is slidably connected to the middle and lower part of the inner wall of the oil cylinder housing 1, a push rod 6 is fixedly connected to the bottom end of the pressure top plate 5, a rotating shaft 7 is arranged in the middle of the right side of the oil cylinder housing 1, a reversing rod 8 is fixedly connected to the right side of the rotating shaft 7, a reversing ball 9 is fixedly connected to the left side of the rotating shaft 7, the reversing ball 9 is arranged in the middle of the inner wall of the oil cylinder housing 1, straight-through grooves 10 are opened on the right side of the top wall and the right side of the bottom wall of the reversing ball 9, the two straight-through grooves 10 communicate with each other, blocking grooves 11 are opened on the left side of the top wall and the left side of the bottom wall of the reversing ball 9, the two blocking grooves 11 communicate with each other, and an automatic oil cut-off mechanism 2 is arranged on the top wall of the pressure stabilizing cylinder 3;

[0034] Specifically, when the hydraulic oil enters from the oil inlet 4 of the pressure stabilizing cylinder 3, the hydraulic oil flows into the channel where the oil cylinder housing 1 is connected to the pressure stabilizing cylinder 3. The hydraulic oil first acts on the pressure top plate 5. Since the pressure top plate 5 is slidably connected to the middle and lower part of the inner wall of the oil cylinder housing 1, under the action of the pressure of the hydraulic oil, the pressure top plate 5 starts to move downward. As the pressure top plate 5 moves, the push rod 6 fixedly connected to it also moves downward synchronously. The push rod 6 can further push other mechanical structures connected to it to realize corresponding functional actions. When it is necessary to change the flow direction of the hydraulic oil, by operating the reversing rod 8, the reversing rod 8 drives the rotating shaft 7 to rotate, and the reversing ball 9 fixedly connected to the left side of the rotating shaft 7 also rotates accordingly. When the reversing ball 9 rotates clockwise, the blocking groove 11 at its bottom end communicates with the inner wall of the pressure stabilizing cylinder 3, and the blocking groove 11 at the top end communicates with the upper middle part of the oil cylinder housing 1, so that the hydraulic oil can flow through the blocking grooves 11 opened on the left side of the top wall and the left side of the bottom wall of the reversing ball 9. Since the two blocking grooves 11 communicate with each other, the hydraulic oil can flow smoothly inside it, thus realizing a flow state, realizing the control and flow direction switching of the hydraulic oil to meet the requirements under different working conditions.

[0035] Referring to Figure 2 , Figure 3 and Figure 4, the automatic fuel cut-off mechanism 2 includes a sealing top seat 201. An outer side of the bottom wall of the sealing top seat 201 is fixedly connected with a sliding cylinder 202. A middle part of the inner wall of the sliding cylinder 202 is slidably connected with a sliding shaft 203. A bottom end of the sliding shaft 203 is fixedly connected with a sliding pressure plate 204. The sliding pressure plate 204 is slidably connected in an inner wall of a pressure stabilizing cylinder 3. Middle and lower parts of left and right sides of the sliding cylinder 202 are both threadedly connected with adjusting bolts 205. Adjacent ends of the two adjusting bolts 205 are both fixedly connected with damping pieces 206. A middle part of the bottom wall of the sealing top seat 201 is fixedly connected with a pressure sensor 207. A top wall of an oil cylinder housing 1 is provided with a blocking assembly. The pressure sensor 207 is electrically connected with the blocking assembly;

[0036] Specifically, in a normal working state, when hydraulic oil enters the pressure stabilizing cylinder 3 from an oil inlet 4, the hydraulic oil will generate an upward pressure on the sliding pressure plate 204. Since the sliding pressure plate 204 is fixedly connected with the sliding shaft 203, and the sliding shaft 203 is slidably connected with the sliding cylinder 202 at the bottom of the sealing top seat 201, the sliding pressure plate 204 will drive the sliding shaft 203 to slide upward in the sliding cylinder 202. At this time, a structure jointly composed of the sealing top seat 201, the sliding cylinder 202, the sliding shaft 203 and the sliding pressure plate 204 moves correspondingly with the change of the hydraulic oil pressure. When the hydraulic oil pressure in the pressure stabilizing cylinder 3 reaches a certain level, the pressure will act on the pressure sensor 207 in the middle of the bottom wall of the sealing top seat 201. After the pressure sensor 207 senses the pressure change, it will transmit a signal to the blocking assembly on the top wall of the oil cylinder housing 1 that is electrically connected with it. After receiving the signal, the blocking assembly starts to work to realize the automatic fuel cut-off function. The adjusting bolts 205 in the middle and lower parts of the left and right sides of the sliding cylinder 202 can be used to adjust the position of the damping piece 206. By rotating the adjusting bolts 205, the distance between the damping piece 206 and the sliding shaft 203 can be changed, so as to adjust the resistance when the sliding shaft 203 slides in the sliding cylinder 202, to adapt to different working requirements and pressure change conditions. The automatic fuel cut-off mechanism 2 can respond in a timely manner according to the pressure change in the pressure stabilizing cylinder 3 to ensure the safe and stable operation of the entire quick closing valve oil cylinder assembly.

[0037] Refer to Figure 2 and Figure 4 , the blocking assembly includes a moving push rod 12. A plurality of fixing bolts 13 penetrate through a bottom of the moving push rod 12. Bottom ends of the plurality of fixing bolts 13 are all threadedly connected to a periphery of the top wall of the oil cylinder housing 1. A middle part of the bottom wall of the moving push rod 12 is fixedly connected with a blocking and passing column 14. The blocking and passing column 14 is slidably connected in an upper middle part of the inner wall of the oil cylinder housing 1; A right end of a reversing rod 8 is fixedly connected with a rubber sleeve 15. An outer wall of the rubber sleeve 15 adopts a frosting process; A bottom end of a push rod 6 is fixedly connected with a hanging ring 16. The hanging ring 16 is vertically fixedly connected to the bottom end of the push rod 6;

[0038] Specifically, it is fixed around the top wall of the oil cylinder housing 1 through multiple fixing bolts 13 penetrating the bottom. When the pressure sensor 207 sends a signal, the moving push rod 12 receives the instruction and moves, driving the blocking column 14 in the middle of the bottom wall to slide in the upper middle part of the inner wall of the oil cylinder housing 1, blocking the oil inlet 4, realizing the blocking of the flow of hydraulic oil, and playing a role in safety protection. The rubber sleeve 15 is fixed to the right end of the reversing rod 8, and its outer wall adopts a frosted process, increasing the friction force, facilitating the operator to better hold and operate the reversing rod 8, realizing the rotation control of the reversing ball 9, thereby changing the flow direction of the hydraulic oil. The lifting ring 16 is vertically fixedly connected to the bottom end of the ejector rod 6, facilitating the lifting operation through the lifting ring 16, and improving the operation convenience.

[0039] Refer to Figure 1 , a connecting flange 17 is fixedly connected to the right end of the oil inlet 4, and the connecting flange 17 can be connected to other flanges; the outer walls of the reversing rod 8 and the rubber sleeve 15 are both designed to be smooth; the bottom ends of the oil cylinder housing 1 and the pressure stabilizing cylinder 3 are both fixedly connected with a fixed bottom plate 18, and mounting holes 19 are provided at the four corners of the top wall of the fixed bottom plate 18;

[0040] Specifically, the connecting flange 17 is fixed to the right end of the oil inlet 4 and can be connected to other flanges to realize the connection between the quick - closing valve oil cylinder assembly and the external oil supply pipeline or other equipment, ensuring that the hydraulic oil can smoothly enter the pressure stabilizing cylinder 3 from the outside. The outer walls of the reversing rod 8 and the rubber sleeve 15 are designed to be smooth, reducing the risk of the operator being scratched during the operation process and improving the safety. The fixed bottom plate 18 at the bottom ends of the oil cylinder housing 1 and the pressure stabilizing cylinder 3 can use fasteners such as bolts to firmly fix the quick - closing valve oil cylinder assembly in the installation position through the mounting holes 19 at the four corners of the top wall, ensuring that there will be no shaking or displacement during the working process, and guaranteeing the stability and reliability of the entire device.

[0041] Working principle: When the hydraulic oil enters from the oil inlet 4 of the pressure stabilizing cylinder 3, the hydraulic oil flows into the channel connecting the cylinder housing 1 and the pressure stabilizing cylinder 3. The hydraulic oil first acts on the pressure top plate 5. Since the pressure top plate 5 is slidably connected to the middle and lower parts of the inner wall of the cylinder housing 1, under the action of the pressure of the hydraulic oil, the pressure top plate 5 starts to move downward. As the pressure top plate 5 moves, the push rod 6 fixedly connected to it also moves downward synchronously. The push rod 6 can further push other mechanical structures connected to it to achieve corresponding functional actions. When it is necessary to change the flow direction of the hydraulic oil, by operating the reversing rod 8, the reversing rod 8 drives the rotating shaft 7 to rotate, and the reversing ball 9 fixedly connected to the left side of the rotating shaft 7 also rotates accordingly. When the reversing ball 9 rotates clockwise, the blocking and passing groove 11 at its bottom end communicates with the inner wall of the pressure stabilizing cylinder 3, and the blocking and passing groove 11 at its top end communicates with the middle and upper parts of the cylinder housing 1, enabling the hydraulic oil to flow through the blocking and passing grooves 11 opened on the left side of the top wall and the left side of the bottom wall of the reversing ball 9. Since the two blocking and passing grooves 11 communicate with each other, the hydraulic oil can flow smoothly inside it, thus realizing a flow state, achieving the control and flow direction switching of the hydraulic oil to meet the requirements under different working conditions;

[0042] Moreover, in the normal working state, when the hydraulic oil enters the pressure stabilizing cylinder 3 from the oil inlet 4, the hydraulic oil will generate an upward pressure on the sliding pressure plate 204. Since the sliding pressure plate 204 is fixedly connected to the sliding shaft 203, and the sliding shaft 203 is slidably connected to the sliding cylinder 202 at the bottom of the sealing top seat 201, the sliding pressure plate 204 will drive the sliding shaft 203 to slide upward in the sliding cylinder 202. At this time, the structure jointly composed of the sealing top seat 201, the sliding cylinder 202, the sliding shaft 203, and the sliding pressure plate 204 moves correspondingly with the change of the hydraulic oil pressure. When the hydraulic oil pressure in the pressure stabilizing cylinder 3 reaches a certain level, the pressure will act on the pressure sensor 207 in the middle of the bottom wall of the sealing top seat 201. After the pressure sensor 207 senses the pressure change, it will transmit a signal to the blocking component on the top wall of the cylinder housing 1 electrically connected to it. After receiving the signal, the blocking component starts to work to achieve the automatic oil cut-off function. The adjusting bolts 205 in the middle and lower parts on the left and right sides of the sliding cylinder 202 can be used to adjust the position of the damping piece 206. By rotating the adjusting bolts 205, the distance between the damping piece 206 and the sliding shaft 203 can be changed, thereby adjusting the resistance when the sliding shaft 203 slides in the sliding cylinder 202 to adapt to different working requirements and pressure change situations. The automatic oil cut-off mechanism 2 can respond in a timely manner according to the pressure change in the pressure stabilizing cylinder 3 to ensure the safe and stable operation of the entire quick closing valve cylinder assembly.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick - shut - off valve oil cylinder assembly, comprising an oil cylinder housing (1), characterized in that: The left side of the oil cylinder housing (1) is connected to a pressure stabilizing cylinder (3). An oil inlet (4) is provided at the top right of the outer wall of the pressure stabilizing cylinder (3). A pressure top plate (5) is slidably connected to the middle and lower part of the inner wall of the oil cylinder housing (1). A push rod (6) is fixedly connected to the bottom end of the pressure top plate (5). A rotating shaft (7) is provided in the middle of the right side of the oil cylinder housing (1). A reversing rod (8) is fixedly connected to the right side of the rotating shaft (7). A reversing ball (9) is fixedly connected to the left side of the rotating shaft (7). The reversing ball (9) is arranged in the middle of the inner wall of the oil cylinder housing (1). Straight-through grooves (10) are provided on the right side of the top wall and the bottom wall of the reversing ball (9). The two straight-through grooves (10) communicate with each other. Blocking-through grooves (11) are provided on the left side of the top wall and the bottom wall of the reversing ball (9). The two blocking-through grooves (11) communicate with each other. An automatic oil cut-off mechanism (2) is provided on the top wall of the pressure stabilizing cylinder (3).

2. The quick - closing valve oil cylinder assembly according to claim 1, characterized in that: The automatic oil cut-off mechanism (2) includes a sealing top seat (201). A sliding cylinder (202) is fixedly connected to the outer side of the bottom wall of the sealing top seat (201). A sliding shaft (203) is slidably connected to the middle of the inner wall of the sliding cylinder (202). A sliding pressure plate (204) is fixedly connected to the bottom end of the sliding shaft (203). The sliding pressure plate (204) is slidably connected to the inner wall of the pressure stabilizing cylinder (3). Adjusting bolts (205) are threadedly connected to the middle and lower parts of the left and right sides of the sliding cylinder (202). Damping sheets (206) are fixedly connected to the adjacent ends of the two adjusting bolts (205). A pressure sensor (207) is fixedly connected to the middle of the bottom wall of the sealing top seat (201). A blocking component is provided on the top wall of the oil cylinder housing (1). The pressure sensor (207) is electrically connected to the blocking component.

3. The quick - closing valve oil cylinder assembly according to claim 1, wherein: The blocking component includes a moving push rod (12). A plurality of fixing bolts (13) penetrate through the bottom of the moving push rod (12). The bottom ends of the plurality of fixing bolts (13) are threadedly connected to the periphery of the top wall of the oil cylinder housing (1). A blocking column (14) is fixedly connected to the middle of the bottom wall of the moving push rod (12). The blocking column (14) is slidably connected to the middle and upper part of the inner wall of the oil cylinder housing (1).

4. A quick - closing valve oil cylinder assembly according to claim 1, characterized in that: A rubber sleeve (15) is fixedly connected to the right end of the reversing rod (8). The outer wall of the rubber sleeve (15) adopts a frosted process.

5. A quick - closing valve oil cylinder assembly according to claim 1, characterized in that: A lifting ring (16) is fixedly connected to the bottom end of the push rod (6). The lifting ring (16) is vertically fixedly connected to the bottom end of the push rod (6).

6. The quick - shut - off valve oil cylinder assembly according to claim 1, characterized in that: A connecting flange (17) is fixedly connected to the right end of the oil inlet (4). The connecting flange (17) can be connected to other flanges.

7. The quick - closing valve oil cylinder assembly according to claim 1, characterized in that: Both the outer walls of the reversing rod (8) and the rubber sleeve (15) adopt a smooth design.

8. A quick - closing valve oil cylinder assembly according to claim 1, characterized in that: Fixed bottom plates (18) are fixedly connected to the bottom ends of the oil cylinder housing (1) and the pressure stabilizing cylinder (3). Mounting holes (19) are provided at the four corners of the top wall of the fixed bottom plate (18).

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