Oil cylinder convenient to install

Abstract

The invention discloses an oil cylinder convenient to install, and relates to the technical field of oil cylinders, according to the oil cylinder convenient to install, the side end of a piston barrel abuts against and is connected with an inner hexagon screw, the inner wall of the piston barrel is slidably connected with a piston, a cover plate abuts against and is connected to the end, away from the inner hexagon screw, of the piston barrel, and a reset oil hole and a pushing oil hole are formed in the two sides, along the axis of the piston barrel, of the cover plate correspondingly; a pushing oil cavity is formed in the cover plate, the pushing oil cavity is communicated with the pushing oil hole, the reset oil pipe is arranged in the piston cylinder and fixedly connected with the side end of the cover plate, and the reset oil pipe is communicated with the reset oil hole; when the cover plate is partially covered by equipment, the reset oil hole and the pushing oil hole cannot be covered by the equipment, so that oil can normally enter the reset oil hole and the pushing oil hole respectively, and the effect that the oil cylinder is conveniently mounted on the equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of oil cylinders, and particularly relates to an oil cylinder that is convenient for installation. Background Art

[0002] An oil cylinder is a hydraulic actuator. It uses the pressure of hydraulic oil to push a piston or a plunger to move, thereby achieving linear reciprocating motion or swinging, and converting hydraulic energy into mechanical energy. Its working principle is based on Pascal's law, that is, the pressure inside the liquid is evenly transmitted in all directions.

[0003] In the prior art, an oil cylinder mainly consists of a housing and a piston. Two oil passage holes are opened on one side of the housing, and the oil enters the housing through the oil passage holes to drive the piston to move, thereby realizing the reciprocating movement of the piston inside the housing.

[0004] However, when the oil cylinder is installed on a device, the two oil passage holes opened on one side of the oil cylinder are blocked by the device, which causes the oil to be unable to pass through the device and enter the oil passage holes, resulting in inconvenience in installing the oil cylinder on the device. Summary of the Invention

[0005] The purpose of the present invention is to provide an oil cylinder that is convenient for installation, so as to solve the technical problem that when the oil cylinder is installed on a device in the prior art, the two oil passage holes opened on one side of the oil cylinder are blocked by the device, which causes the oil to be unable to pass through the device and enter the oil passage holes, resulting in inconvenience in installing the oil cylinder on the device.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] An oil cylinder that is convenient for installation, comprising:

[0008] A piston cylinder, an inner hexagon screw is abutted and connected to the side end of the piston cylinder, and a piston is slidably connected to the inner wall of the piston cylinder;

[0009] A cover plate, the cover plate is abutted and connected to the end of the piston cylinder away from the inner hexagon screw. A return oil hole and a push oil hole are respectively opened on both sides of the cover plate along the axis of the piston cylinder. A push oil cavity is opened inside the cover plate, and the push oil cavity is communicated with the push oil hole;

[0010] A return oil pipe, the return oil pipe is arranged inside the piston cylinder and fixedly connected to the side end of the cover plate, and the return oil pipe is communicated with the return oil hole.

[0011] As a further scheme of the present invention: The inner hexagon screw is slidably connected to the outer wall of the piston. Side plates are respectively fixedly connected to both sides of the inner hexagon screw, and the side plates are fixedly connected to the side end of the piston cylinder.

[0012] As a further solution of the present invention: a plurality of fixing screws are fixedly connected to one end of the piston cylinder away from the side plate, and the plurality of fixing screws are fixedly connected to the cover plate.

[0013] As a further solution of the present invention: the plurality of fixing screws are equidistantly distributed along the axis of the cover plate.

[0014] As a further solution of the present invention: a storage oil cavity is formed inside the piston, the return oil pipe is located inside the storage oil cavity and its side end does not contact the inner wall of the storage oil cavity, and a return oil cavity is reserved between the piston and the piston cylinder.

[0015] As a further solution of the present invention: a connecting oil hole is formed in the side end of the piston, and the connecting oil hole is respectively communicated with the storage oil cavity and the return oil cavity.

[0016] As a further solution of the present invention: the side end of the push oil cavity abuts against the piston.

[0017] As a further solution of the present invention: a detection cavity is formed in the piston along the axis, a detector is provided on the inner wall of the detection cavity, a sensor is fixedly connected to the side end of the detector, mounting screws are respectively fixedly connected to both sides of the sensor, and the mounting screws are fixedly connected to the cover plate.

[0018] As a further solution of the present invention: a dumbbell seal is sleeved and connected to the outer wall of the sensor, and the dumbbell seal abuts against the side end of the cover plate.

[0019] As a further solution of the present invention: a copper pipe is provided in the detection cavity, the copper pipe is sleeved and connected to the detector, locking screws are respectively fixedly connected to both ends of the copper pipe, and the locking screws are fixedly connected to the cover plate.

[0020] Advantages of the present invention:

[0021] 1. When part of the cover plate is covered by the equipment, the return oil hole and the push oil hole will not be covered by the equipment, so as to ensure that oil can normally enter the return oil hole and the push oil hole respectively, thus ensuring the effect that the oil cylinder is convenient to be installed on the equipment.

[0022] 2. The return oil pipe realizes the effect of extending the oil, thus realizing the effect of flowing the oil out from the piston through the connecting oil hole, and then abutting against the inner wall of the piston cylinder to reset the piston. Among them, the storage oil cavity realizes the effect of limiting the return oil pipe, avoiding the phenomenon of shaking and deviation of the return oil pipe, so as to ensure the stability of oil transportation along the return oil pipe. Description of the drawings

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 Schematic diagram of the overall structure of the present invention;

[0025] Figure 2 of the present invention Figure 1 Enlarged schematic diagram of the structure at position A;

[0026] Figure 3 of the present invention Figure 2 Enlarged schematic diagram of the structure at position B;

[0027] Figure 4 K-J cross-sectional view of the overall structure of the present invention.

[0028] In the figure: 1, piston cylinder; 2, piston; 3, side plate; 4, hexagon socket head cap screw; 6, return oil hole; 7, cover plate; 8, push oil hole; 9, return oil pipe; 10, connecting oil hole; 11, return oil cavity; 12, push oil cavity; 13, storage oil cavity; 14, mounting screw; 15, sensor; 16, detector; 17, detection cavity; 18, lock screw; 19, copper pipe; 20, fixing screw; 21, dumbbell seal. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] As Figures 1 - 4 shown, an oil cylinder convenient for installation includes: a piston cylinder 1, a cover plate 7 and a return oil pipe 9,

[0031] The side end of the piston cylinder 1 is abutted and connected with a hexagon socket head cap screw 4, the inner wall of the piston cylinder 1 is slidably connected with a piston 2, the cover plate 7 is abutted and connected to the end of the piston cylinder 1 away from the hexagon socket head cap screw 4, and the cover plate 7 is respectively provided with a return oil hole 6 and a push oil hole 8 on both sides along the axis of the piston cylinder 1. A push oil cavity 12 is provided inside the cover plate 7, and the push oil cavity 12 is communicated with the push oil hole 8. The return oil pipe 9 is arranged inside the piston cylinder 1 and fixedly connected to the side end of the cover plate 7, and the return oil pipe 9 is communicated with the return oil hole 6. When the piston cylinder 1 is installed on the equipment, the cover plate 7 is installed on the side end of the piston cylinder 1, and the cover plate 7 does not contact the equipment and will not be covered by the equipment. The return oil hole 6 and the push oil hole 8 are respectively provided on both sides of the cover plate 7. When part of the cover plate 7 is covered by the equipment, the return oil hole 6 and the push oil hole 8 will not be covered by the equipment, so as to ensure that oil can normally enter the return oil hole 6 and the push oil hole 8 respectively;

[0032] When the piston 2 needs to extend from the piston cylinder 1, oil enters from the pushing oil hole 8, then the oil flows into the pushing oil chamber 12, and then the oil flows out from the pushing oil chamber 12 to abut against the piston 2, and then the oil pushes the piston 2 to move. When the piston 2 needs to retract into the piston cylinder 1, the oil introduced at the pushing oil hole 8 is decompressed at this time. Then, oil starts to be introduced at the reset oil hole 6, and the oil flows along the inner wall of the reset oil hole 6 to the reset oil pipe 9, and then flows out from the side end of the reset oil pipe 9. The oil enters the piston cylinder 1, and the oil abuts against the side end of the piston 2 by abutting against the inner wall of the piston cylinder 1. The piston 2 starts to reset under the extrusion of the oil. At this time, the oil at the pushing oil hole 8 starts to flow back, thus achieving the effect that the piston 2 reciprocates in the piston cylinder 1.

[0033] In some specific embodiments, the hexagon socket head cap screw 4 is slidably connected to the outer wall of the piston 2. Side plates 3 are respectively fixedly connected to both sides of the hexagon socket head cap screw 4. The side plates 3 are fixedly connected to the side end of the piston cylinder 1. The hexagon socket head cap screw 4 can be installed on the piston cylinder 1 through the side plates 3. The hexagon socket head cap screw 4 and the cover plate 7 can seal and block both ends of the piston cylinder 1. Sealing gaskets can be installed on the hexagon socket head cap screw 4 and the cover plate 7, so as to ensure that the inside of the piston cylinder 1 is in a sealed state and no leakage occurs when oil enters the piston cylinder 1.

[0034] In some specific embodiments, a plurality of fixing screws 20 are fixedly connected to the piston cylinder 1 at the end far from the side plate 3. The plurality of fixing screws 20 are fixedly connected to the cover plate 7. The cover plate 7 is fixed on the piston cylinder 1 through the fixing screws 20.

[0035] In some specific embodiments, the plurality of fixing screws 20 are equidistantly distributed along the axis of the cover plate 7. Since a thrust of 10,000 tons will be generated when the piston 2 operates, therefore, a large number of fixing screws 20 are used to fix the cover plate 7 on the piston cylinder 1. The distribution mode of the plurality of fixing screws 20 can ensure that when the cover plate 7 is installed on the piston cylinder 1, the acting force of the fixing screws 20 on the cover plate 7 is uniform, so as to ensure the stability of the cover plate 7 fixed on the piston cylinder 1.

[0036] In some specific embodiments, a storage oil chamber 13 is provided inside the piston 2. The return oil pipe 9 is located inside the storage oil chamber 13 and its side end does not contact the inner wall of the storage oil chamber 13. A return oil chamber 11 is reserved between the piston 2 and the piston cylinder 1. A connecting oil hole 10 is provided at the side end of the piston 2. The connecting oil hole 10 is in communication with the storage oil chamber 13 and the return oil chamber 11 respectively. When oil enters from the return oil hole 6, the oil flows along the inner wall of the return oil hole 6, flows to the position of the return oil pipe 9, and then flows into the storage oil chamber 13 from the side end of the return oil pipe 9. The return oil pipe 9 and the inner wall of the storage oil chamber 13 do not contact. The oil flows into the storage oil chamber 13 and flows towards the connecting oil hole 10. The oil flows out of the piston 2 from the connecting oil hole 10 and then enters the return oil chamber 11. The oil starts to squeeze the side end of the piston 2 inside the return oil chamber 11, and the side end of the piston 2 slides along the inner wall of the piston cylinder 1. Thus, the piston 2 achieves the effect of resetting. The return oil pipe 9 achieves the effect of extending the oil, thus achieving the effect of flowing the oil out of the piston 2 through the connecting oil hole 10. Furthermore, by abutting against the inner wall of the piston cylinder 1, the effect of resetting the piston 2 is achieved. Among them, the storage oil chamber 13 achieves the effect of limiting the return oil pipe 9, avoiding the phenomenon of shaking and offset of the return oil pipe 9, and thus ensuring the stability of the oil transportation along the return oil pipe 9.

[0037] In some specific embodiments, the side end of the pushing oil chamber 12 abuts against the piston 2. When the piston 2 extends from the inner wall of the piston cylinder 1, oil flows into the pushing oil chamber 12 from the pushing oil hole 8. The cross-section of the pushing oil chamber 12 is bent, and the axis line of the side end is perpendicular to the piston 2. The pushing oil chamber 12 can vertically introduce the oil to the side end of the piston 2 and then push the side end of the piston 2. When the side end of the piston 2 slides along the inner wall of the piston cylinder 1, the oil starts to enter the piston cylinder 1. Since the oil is sealed by the side end of the piston 2, the oil entering from the pushing oil hole 8 will not flow into the return oil chamber 11. Thus, the effect that the piston 2 can extend stably is achieved, and at the same time, the stability of the thrust of the piston 2 can be ensured.

[0038] In some specific embodiments, a detection cavity 17 is formed along the axis of the piston 2. A detector 16 is provided on the inner wall of the detection cavity 17. A sensor 15 is fixedly connected to the side end of the detector 16. Mounting screws 14 are fixedly connected to both sides of the sensor 15, and the mounting screws 14 are fixedly connected to the cover plate 7. To further ensure that the extending distance of the piston 2 is controllable, when the piston 2 starts to move along the inner wall of the piston cylinder 1, the detector 16 can detect the moving distance of the piston 2, and then transmit the signal to the sensor 15. The sensor 15 transmits the signal to the numerical control center, so that the moving distance of the piston 2 can be monitored in real time. On the other hand, it is convenient for the numerical control center to control the oil inlet volume, thereby achieving the effect of controlling the moving distance of the piston 2. The detection cavity 17 provides space for the installation of the detector 16.

[0039] In some specific embodiments, a dumbbell seal 21 is sleeved and connected to the outer wall of the sensor 15, and the dumbbell seal 21 is in abutting connection with the side end of the cover plate 7. When the sensor 15 is fixed on the cover plate 7 by the mounting screws 14, the dumbbell seal 21 can be sleeved on the outer surface of the sensor 15, and then the dumbbell seal 21 is abutted against the side end of the cover plate 7. The dumbbell seal 21 can seal the gap between the sensor 15 and the cover plate 7, thereby preventing dust from entering through the gap between the sensor 15 and the cover plate 7, thus ensuring the sealing performance and cleanliness of the equipment. At the same time, when the equipment is running, vibrations will be generated. The dumbbell seal 21 can prevent the cover plate 7 and the sensor 15 from directly contacting, and the dumbbell seal 21 buffers the vibrations, thereby protecting the operation of the sensor 15.

[0040] In some specific embodiments, a copper tube 19 is provided in the detection cavity 17. The copper tube 19 is sleeved and connected to the detector 16. Locking screws 18 are fixedly connected to both ends of the copper tube 19, and the locking screws 18 are fixedly connected to the cover plate 7. When the piston 2 runs for a long time, the piston 2 will generate heat. The copper tube 19 can block the heat of the piston 2, and the copper tube 19 can position the detector 16. The copper tube 19 does not contact the inner wall of the detection cavity 17, so that the vibration generated by the piston 2 can be prevented from being transmitted to the detector 16, thus affecting the normal operation of the detector 16.

[0041] To facilitate the understanding of this solution embodiment by those skilled in the art, the working principle of this solution will be briefly described below in combination with a specific application scenario:

[0042] When the piston cylinder 1 is installed on the device, the cover plate 7 is installed at the side end of the piston cylinder 1. The cover plate 7 does not contact the device and will not be covered by the device. Reset oil holes 6 and push oil holes 8 are respectively formed on both sides of the cover plate 7. When part of the cover plate 7 is covered by the device, the reset oil holes 6 and the push oil holes 8 will not be covered by the device. Then, the copper tube 19 is installed in the detection cavity 17. Locking screws 18 are respectively fixedly connected to both ends of the copper tube 19. The copper tube 19 is sleeved and connected to the detector 16. A dumbbell seal 21 can be sleeved on the outer surface of the sensor 15. Then, the sensor 15 is fixed on the cover plate 7 through the mounting screw 14, thus realizing the installation of the device;

[0043] When the piston 2 needs to extend out of the piston cylinder 1, oil enters from the push oil hole 8, and then the oil flows to the push oil cavity 12. The cross-section of the push oil cavity 12 is bent, and the axis line at the side end is perpendicular to the piston 2. The push oil cavity 12 can vertically introduce the oil to the side end of the piston 2, and then push the side end of the piston 2. When the side end of the piston 2 flows along the inner wall of the piston cylinder 1, oil begins to enter the piston cylinder 1. Since the oil is sealed by the side end of the piston 2, the oil entering from the push oil hole 8 will not flow to the reset oil cavity 11;

[0044] When the piston 2 needs to retract into the piston cylinder 1, at this time, the oil introduced at the push oil hole 8 is relieved of pressure. Then, oil begins to be introduced at the reset oil hole 6. The oil flows along the inner wall of the reset oil hole 6 to the reset oil pipe 9, and then flows into the storage oil cavity 13 from the side end of the reset oil pipe 9. The reset oil pipe 9 does not contact the inner wall of the storage oil cavity 13. The oil flows into the storage oil cavity 13 and flows towards the connecting oil hole 10. The oil flows out of the piston 2 from the connecting oil hole 10, and then enters the reset oil cavity 11. The oil starts to squeeze the side end of the piston 2 in the reset oil cavity 11, and the side end of the piston 2 slides along the inner wall of the piston cylinder 1;

[0045] When part of the cover plate 7 is covered by the device, the reset oil holes 6 and the push oil holes 8 will not be covered by the device, so as to ensure that oil can normally enter the reset oil holes 6 and the push oil holes 8 respectively, thus ensuring the effect that the oil cylinder is convenient to be installed on the device;

[0046] The reset oil pipe 9 realizes the effect of extending the oil, thus realizing the effect that the oil flows out from the piston 2 through the connecting oil hole 10, and further realizing the effect of resetting the piston 2 by abutting against the inner wall of the piston cylinder 1. Among them, the storage oil cavity 13 realizes the effect of limiting the reset oil pipe 9, avoiding the phenomenon of shaking and offset of the reset oil pipe 9, thus ensuring the stability of the oil transportation along the reset oil pipe 9.

[0047] The above has described several embodiments of the present invention in detail, but the embodiments of the present invention are not limited thereto and should not be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made in accordance with the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. An oil cylinder that is easy to install, characterized in that, Comprising: A piston cylinder (1), with an internal hexagonal screw (4) abutted and connected to the side end of the piston cylinder (1), and a piston (2) slidably connected to the inner wall of the piston cylinder (1); A cover plate (7), which is abutted and connected to one end of the piston cylinder (1) away from the internal hexagonal screw (4). A return oil hole (6) and a pushing oil hole (8) are respectively provided on both sides of the cover plate (7) along the axis of the piston cylinder (1). A pushing oil cavity (12) is provided inside the cover plate (7), and the pushing oil cavity (12) communicates with the pushing oil hole (8); A return oil pipe (9), which is arranged inside the piston cylinder (1) and fixedly connected to the side end of the cover plate (7), and the return oil pipe (9) communicates with the return oil hole (6).

2. The hydraulic cylinder convenient for installation according to claim 1, wherein The internal hexagonal screw (4) is slidably connected to the outer wall of the piston (2), and side plates (3) are respectively fixedly connected to both sides of the internal hexagonal screw (4), and the side plates (3) are fixedly connected to the side end of the piston cylinder (1).

3. The hydraulic cylinder according to claim 1, which is easy to install, is characterized in that A plurality of fixing screws (20) are fixedly connected to the end of the piston cylinder (1) away from the side plate (3), and the plurality of fixing screws (20) are fixedly connected to the cover plate (7).

4. The hydraulic cylinder convenient for installation according to claim 3, wherein, The plurality of fixing screws (20) are equidistantly distributed along the axis of the cover plate (7).

5. The oil cylinder convenient for installation according to claim 1 is characterized in that, A storage oil cavity (13) is provided inside the piston (2). The return oil pipe (9) is located inside the storage oil cavity (13) and its side end does not contact the inner wall of the storage oil cavity (13). A return oil cavity (11) is reserved between the piston (2) and the piston cylinder (1).

6. The hydraulic cylinder convenient for installation according to claim 5, characterized in that, A connecting oil hole (10) is provided at the side end of the piston (2), and the connecting oil hole (10) communicates with the storage oil cavity (13) and the return oil cavity (11) respectively.

7. The hydraulic cylinder convenient for installation according to claim 1, wherein, The side end of the pushing oil cavity (12) abuts against the piston (2).

8. A cylinder that is easy to install according to claim 1, characterized in that, A detection cavity (17) is provided along the axis of the piston (2). A detector (16) is provided on the inner wall of the detection cavity (17). A sensor (15) is fixedly connected to the side end of the detector (16). Mounting screws (14) are respectively fixedly connected to both sides of the sensor (15), and the mounting screws (14) are fixedly connected to the cover plate (7).

9. The hydraulic cylinder according to claim 8, which is easy to install, is characterized in that, A dumbbell seal (21) is sleeved and connected to the outer wall of the sensor (15), and the dumbbell seal (21) abuts against and is connected to the side end of the cover plate (7).

10. A cylinder that is easy to install according to claim 8, characterized in that, A copper pipe (19) is provided in the detection cavity (17). The copper pipe (19) is sleeved and connected to the detector (16). Locking screws (18) are respectively fixedly connected to both ends of the copper pipe (19), and the locking screws (18) are fixedly connected to the cover plate (7).

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