Oil stop valve of oil hydraulic cylinder
By designing the oil stop valve of the hydraulic cylinder, using the cutoff mechanism and the lengthening mechanism, the problem of vigorous operation when the hydraulic cylinder closes the oil stop valve is solved, achieving more convenient operation and more flexible installation, reducing operation difficulty and Exhausted.
Patent Information
- Application Number
- CN202420956602.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-06
AI Technical Summary
When using the oil pressure cylinder, the oil-inlet and oil-inlet valve need to be used to control the oil in and out. When closing the oil-inlet valve, the operator needs to have enough strength, which leads to laborious operation.
An oil-detection valve of an oil-pressure cylinder is designed, including a valve body and a cutting mechanism. The cutting mechanism consists of a cutting rod, an oil guide pipe, a sealing gasket, a sealing cover and a pressure relief port. The oil is temporarily stored in the oil storage funnel through the oil guide pipe. Inside, the cutoff rod is inserted into the stopper chamber to block the oil circuit, and the position of the stopper valve is adjusted through the lengthening mechanism for easy operation.
It reduces the difficulty of operating when closing the oil stop valve, makes its operation more convenient and fast, saves time and effort, and improves the flexibility of the oil stop valve.
Smart Images
Figure CN222208451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of an oil stop valve for a hydraulic cylinder, in particular to an oil stop valve for a hydraulic cylinder. Background Art
[0002] A hydraulic cylinder is a linear motion actuator whose output force is proportional to the effective area of the piston and the pressure difference on both sides. Its function is to convert hydraulic energy into mechanical energy. The input of the hydraulic cylinder is the flow rate and pressure of the fluid, and the output is the linear motion speed and force. The piston of the hydraulic cylinder can complete linear reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy of reciprocating linear motion. The hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application scenario, and other devices are indispensable.
[0003] In the prior art, the hydraulic cylinder needs to cooperate with the oil stop valve to control the oil in and out when in use. When closing the oil stop valve, the operator needs to have sufficient strength to open and close it, which is quite laborious. Therefore, we propose an oil stop valve for the hydraulic cylinder. Utility Model Content
[0004] The purpose of the utility model is to provide an oil stop valve for a hydraulic cylinder to solve the problem in the background technology that the hydraulic cylinder needs to cooperate with the oil stop valve to control the oil inlet and outlet when in use, and the operator needs to have sufficient strength to open and close the oil stop valve, which is laborious to operate.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil stop valve for a hydraulic cylinder, comprising a valve body and a shut-off mechanism, the shut-off mechanism comprising a shut-off rod and an oil guide pipe, a hand wheel is fixedly mounted on the upper end of the shut-off rod, a sealing gasket is fixedly mounted on the outer wall of the shut-off rod, the oil guide pipe is movably connected to a sealing cover through an oil storage funnel, and the sealing cover is movably connected to a sealing plug through a pressure relief port.
[0006] As a preferred embodiment, a stop cavity is provided inside the valve body, an opening is provided on the front side of the valve body near the upper end, an oil inlet pipe is fixedly installed on the left side of the valve body, the opening is communicated with the oil inlet pipe, and an oil outlet pipe is fixedly installed on the right side of the valve body.
[0007] As a preferred solution, the cut-off rod is inserted into the interior of the stop-flow chamber, the bottom of the cut-off rod is magnetically attracted to the bottom of the stop-flow chamber, and the sealing pad is against the inner wall of the stop-flow chamber.
[0008] As a preferred solution, the oil guide pipe is "L"-shaped, one end of the oil guide pipe is fixedly installed inside the oil outlet pipe, the bottom of the oil storage funnel is fixedly installed on the other end of the oil guide pipe, the oil storage funnel is made of transparent material, the bottom of the sealing cover is inserted into the inside of the oil storage funnel, the pressure relief port passes through the middle of the surface of the sealing cover, and the sealing plug is inserted into the inside of the pressure relief port.
[0009] As a preferred solution, an extension mechanism is provided on the outer side of the oil inlet pipe, and the extension mechanism includes an extension tube, a connecting sleeve is fixedly installed on the inner end of the extension tube, the connecting sleeve is inserted into the interior of the oil inlet pipe, the inner end of the extension tube is abutted against the oil inlet pipe, a first half ring is movably installed on the outer wall of the extension tube, a fixed shaft is fixedly installed on the upper end of the first half ring, the outer wall of the fixed shaft is rotatably connected to a rotating part, and a second half ring is fixedly installed on the outer end of the rotating part.
[0010] As a preferred solution, the lower ends of the second half ring and the first half ring are penetrated by threaded holes, and the inside of the threaded holes is rotatably connected with cap bolts, and the inner walls of the first half ring and the second half ring are against the outer walls of the extension pipe and the oil inlet pipe.
[0011] Technical effects and advantages of the utility model:
[0012] 1. Through the cut-off mechanism, the sealing plug is opened to allow the pressure in the valve body to leak out, and the oil in the oil inlet pipe is temporarily stored in the oil storage funnel through the oil guide pipe, so that the cut-off rod can be inserted into the stop-flow cavity of the valve body to block the oil circuit for interception. When the oil circuit is opened later, the reverse operation can be performed, avoiding the problem that the traditional interception requires the operator to have sufficient strength to open and close, making the oil stop valve easy and quick to operate, saving time and effort.
[0013] 2. By setting up the extension mechanism, when installing the oil stop valve, the position of the oil stop valve can be adjusted by lengthening the extension pipe, avoiding inconvenience in later operation due to the distance to the oil cylinder being too close, and increasing the flexibility of the oil stop valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0015] Figure 2 It is an exploded view of the utility model.
[0016] Figure 3 This is one of the partial structural exploded views of the cut-off mechanism of the utility model.
[0017] Figure 4 This is the second partial structural exploded view of the cut-off mechanism of the utility model.
[0018] Figure 5It is an exploded view of the lengthening mechanism of the utility model.
[0019] In the figure: 1. valve body; 2. stop chamber; 3. opening; 4. oil inlet pipe; 5. oil outlet pipe; 6. shut-off mechanism; 61. shut-off rod; 62. hand wheel; 63. sealing gasket; 64. oil guide pipe; 65. oil storage funnel; 66. sealing cover; 67. pressure relief port; 68. sealing plug; 7. extension mechanism; 71. extension pipe; 72. connecting sleeve; 73. first half ring; 74. fixed shaft; 75. second half ring; 76. rotating part; 77. threaded hole; 78. cap bolt. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The utility model provides Figure 1-5 The oil stop valve of a hydraulic cylinder shown in the figure comprises a valve body 1 and a shut-off mechanism 6, wherein the shut-off mechanism 6 comprises a shut-off rod 61 and an oil guide pipe 64, wherein a hand wheel 62 is fixedly mounted on the upper end of the shut-off rod 61, a sealing gasket 63 is fixedly mounted on the outer wall of the shut-off rod 61, the oil guide pipe 64 is movably connected to a sealing cover 66 through an oil storage funnel 65, the sealing cover 66 is movably connected to a sealing plug 68 through a pressure relief port 67, the shut-off rod 61 is inserted into the interior of the stop chamber 2, the bottom of the shut-off rod 61 is magnetically attracted to the bottom of the stop chamber 2, the sealing gasket 63 is against the inner wall of the stop chamber 2, the oil guide pipe 64 is "L" shaped, one end of the oil guide pipe 64 is fixedly mounted inside the oil outlet pipe 5, the bottom of the oil storage funnel 65 is fixedly mounted on the other end of the oil guide pipe 64, and the oil storage funnel 65 is transparent Material, the bottom of the sealing cover 66 is inserted into the inside of the oil storage funnel 65, the pressure relief port 67 runs through the middle of the surface of the sealing cover 66, and the sealing plug 68 is inserted into the inside of the pressure relief port 67. When it is necessary to close the oil stop valve, first hold the hand wheel 62 and turn the cut-off rod 61 downward along the inner wall of the stop chamber 2. When the downward resistance is large, pull out the sealing plug 68 on the sealing cover 66, and the oil in the oil inlet pipe 4 will slowly flow out from the oil guide pipe 64 as the cut-off rod 61 descends, and gather in the oil storage funnel 65. Observe the oil storage funnel 65 at any time to prevent oil from seeping out. When the cut-off rod 61 reaches the bottom, plug the sealing plug 68 tightly into the pressure relief port 67 to close the oil stop valve. When opening the oil stop valve later, pull out the sealing plug 68 first to let the oil return to the oil inlet pipe 4.
[0022] In this embodiment, an extension mechanism 7 is provided on the outer side of the oil inlet pipe 4, and the extension mechanism 7 includes an extension pipe 71, and a connecting sleeve 72 is fixedly installed on the inner end of the extension pipe 71. The connecting sleeve 72 is inserted into the inside of the oil inlet pipe 4, and the inner end of the extension pipe 71 is against the oil inlet pipe 4. A first half ring 73 is movably installed on the outer wall of the extension pipe 71, and a fixed shaft 74 is fixedly installed on the upper end of the first half ring 73. A rotating member 76 is rotatably connected to the outer wall of the fixed shaft 74, and a second half ring 75 is fixedly installed on the outer end of the rotating member 76. The lower ends of the second half ring 75 and the first half ring 73 are A threaded hole 77 is passed through, and a cap bolt 78 is rotatably connected inside the threaded hole 77. The inner walls of the first half ring 73 and the second half ring 75 are abutted against the outer walls of the extension tube 71 and the oil inlet pipe 4. When installing the oil stop valve, if the position of the oil stop valve is not ideal, the extension tube 71 can be connected to the oil inlet pipe 4 through the connecting sleeve 72, and then the first half ring 73 and the second half ring 75 are rotated on the fixed shaft 74 by the rotating member 76 to abut against the outer walls of the extension tube 71 and the oil inlet pipe 4. Finally, the cap bolt 78 is rotatably connected in the threaded hole 77, and the nut is tightened.
[0023] In this embodiment, a stop chamber 2 is provided inside the valve body 1, an opening 3 is provided on the front side of the valve body 1 near the upper end, an oil inlet pipe 4 is fixedly installed on the left side of the valve body 1, the opening 3 is communicated with the oil inlet pipe 4, and an oil outlet pipe 5 is fixedly installed on the right side of the valve body 1. The stop chamber 2 is used for inserting and intercepting the shut-off rod 61, the opening 3 is used for connecting the oil guide pipe 64, the oil inlet pipe 4 is used for oil entry, and the oil outlet pipe 5 is used for oil outflow.
[0024] Working principle of the utility model: the utility model is an oil stop valve for a hydraulic cylinder. When installing the oil stop valve, if the position of the oil stop valve is not ideal, the extension tube 71 can be connected to the oil inlet pipe 4 through the connecting sleeve 72, and then the first half ring 73 and the second half ring 75 are rotated on the fixed shaft 74 through the rotating member 76 to abut against the outer wall of the extension tube 71 and the oil inlet pipe 4, and finally the cap bolt 78 is rotated and connected in the threaded hole 77, and the nut is tightened.
[0025] When it is necessary to close the oil stop valve, first hold the hand wheel 62 and turn the stop rod 61 downward along the inner wall of the stop chamber 2. When the downward resistance is large, pull out the sealing plug 68 on the sealing cover 66. The oil in the oil inlet pipe 4 will slowly flow out from the oil guide pipe 64 as the stop rod 61 descends and collect in the oil storage funnel 65. Observe the oil storage funnel 65 at any time to prevent oil leakage. When the stop rod 61 reaches the bottom, plug the sealing plug 68 tightly into the pressure relief port 67 to close the oil stop valve. When opening the oil stop valve later, pull out the sealing plug 68 first to let the oil return to the oil inlet pipe 4.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An oil stop valve for a hydraulic cylinder, comprising a valve body (1) and a stop mechanism (6), characterized in that: The cut-off mechanism (6) comprises a cut-off rod (61) and an oil guide pipe (64); a hand wheel (62) is fixedly mounted on the upper end of the cut-off rod (61); a sealing gasket (63) is fixedly mounted on the outer wall of the cut-off rod (61); the oil guide pipe (64) is movably connected to a sealing cover (66) via an oil storage funnel (65); and the sealing cover (66) is movably connected to a sealing plug (68) via a pressure relief port (67).
2. The oil check valve for a hydraulic cylinder according to claim 1, characterized in that: The valve body (1) is provided with a flow-stop chamber (2) inside, the front side of the valve body (1) is provided with an opening (3) near the upper end, an oil inlet pipe (4) is fixedly installed on the left side of the valve body (1), the opening (3) is communicated with the oil inlet pipe (4), and an oil outlet pipe (5) is fixedly installed on the right side of the valve body (1).
3. The oil check valve for a hydraulic cylinder according to claim 2, characterized in that: The stop rod (61) is inserted into the interior of the stop chamber (2), the bottom of the stop rod (61) is magnetically attracted to the bottom of the stop chamber (2), and the sealing pad (63) abuts against the inner wall of the stop chamber (2).
4. The oil check valve for a hydraulic cylinder according to claim 3, characterized in that: The oil guide pipe (64) is "L"-shaped, one end of the oil guide pipe (64) is fixedly installed inside the oil outlet pipe (5), the bottom of the oil storage funnel (65) is fixedly installed on the other end of the oil guide pipe (64), the oil storage funnel (65) is made of transparent material, the bottom of the sealing cover (66) is inserted into the inside of the oil storage funnel (65), the pressure relief port (67) passes through the middle position of the surface of the sealing cover (66), and the sealing plug (68) is inserted into the inside of the pressure relief port (67).
5. The oil stop valve for a hydraulic cylinder according to claim 2, characterized in that: An extension mechanism (7) is arranged on the outer side of the oil inlet pipe (4), and the extension mechanism (7) comprises an extension pipe (71), a connecting sleeve (72) is fixedly mounted on the inner end of the extension pipe (71), the connecting sleeve (72) is inserted into the interior of the oil inlet pipe (4), the inner end of the extension pipe (71) abuts against the oil inlet pipe (4), a first half ring (73) is movably mounted on the outer wall of the extension pipe (71), a fixed shaft (74) is fixedly mounted on the upper end of the first half ring (73), a rotating member (76) is rotatably connected to the outer wall of the fixed shaft (74), and a second half ring (75) is fixedly mounted on the outer end of the rotating member (76).
6. The oil stop valve for a hydraulic cylinder according to claim 5, characterized in that: The lower ends of the second half ring (75) and the first half ring (73) are penetrated by a threaded hole (77), and a cap bolt (78) is rotatably connected inside the threaded hole (77). The inner walls of the first half ring (73) and the second half ring (75) are against the outer walls of the extension tube (71) and the oil inlet pipe (4).