An easily installed electro-hydraulic push rod
The design of the fixed base, mounting bracket, and telescopic bracket solves the problem of the non-adjustable installation method of the electro-hydraulic actuator, achieving flexible installation and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU HUIYU TECH CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional electro-hydraulic actuators cannot be adjusted according to the actual situation during installation, resulting in installation difficulties or poor stability.
An easy-to-install electro-hydraulic actuator was designed. Through the cooperation of the fixed base, mounting bracket and telescopic bracket, the installation method can be adjusted according to the site conditions, and the stability is enhanced by the fixing structure of auxiliary plate and clamp.
It improves the installation flexibility and stability of electro-hydraulic actuators, reduces installation limitations, and ensures stable operation under special conditions.
Smart Images

Figure CN224551218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electro-hydraulic actuator technology, specifically an easy-to-install electro-hydraulic actuator. Background Technology
[0002] Electro-hydraulic actuators are a new type of flexible transmission device that integrates mechanical, electrical, and hydraulic technologies. They can efficiently convert electrical energy into mechanical energy to achieve linear reciprocating motion or rotary motion. Their core structure consists of an electric motor, a hydraulic pump, a hydraulic cylinder, and a control valve group. The electric motor drives the bidirectional hydraulic pump to output pressurized oil, which is then precisely adjusted by the hydraulic control valve to drive the piston rod of the cylinder to move, completing actions such as pushing, pulling, lifting, and lowering.
[0003] The "Electrohydraulic Actuator with Easy Installation" disclosed in publication number "CN217494242U" includes a base, a horizontal adjustment device on the upper side of the base, and symmetrical reinforcement devices on both sides of the base.
[0004] Traditional electro-hydraulic actuators lack the ability to select and adjust the installation method according to actual conditions, resulting in situations where the actuator cannot be installed or used, or where the stability is poor after installation. To address these issues, we have designed an easy-to-install electro-hydraulic actuator. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an easy-to-install electro-hydraulic actuator, solving the problem that the installation method cannot be selected and adjusted according to the actual situation during installation, which leads to the electro-hydraulic actuator being unable to be installed and used in some cases, or having poor stability when used after installation.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an easy-to-install electro-hydraulic actuator, comprising a cylinder body and an oil pump assembled at the bottom of the cylinder body, as well as a mounting bracket and an auxiliary plate assembled outside the oil pump;
[0007] A piston rod is slidably installed inside the cylinder, and a fixed seat is fixedly installed on the outside of the oil pump. Locking holes are equally spaced on the surface of the fixed seat, and a motor is fixedly installed at the bottom of the oil pump.
[0008] The top of the mounting bracket is movably mounted outside the fixed base. A telescopic plate is slidably mounted on the bottom of the mounting bracket. Limiting holes are equidistantly provided on the outer side of the telescopic plate. A limiting shaft that mates with the limiting holes is threaded onto the bottom of the outer side of the mounting bracket. A mounting base is fixedly mounted on the bottom of the telescopic plate. A locking disc is fixedly mounted on the outer side of the top of the mounting bracket. A locking shaft that is inserted into the locking hole is bolted onto the locking disc. An assembly hole is provided on the outer side of the top of the mounting bracket.
[0009] The auxiliary plate has a sliding groove on its back, and a clamping plate is slidably installed inside the sliding groove. An assembly column that mates with the assembly hole is fixedly installed on the inner side of the clamping plate. Fixing plates are fixedly installed on the top and bottom of the auxiliary plate.
[0010] Preferably, a guide cone plate is fixedly installed on the top of the mounting base.
[0011] Preferably, threaded sleeves are fixedly installed on the inner side of each clamping plate, and the threaded sleeves are connected to each other by threaded rods.
[0012] Preferably, a rotating rod is fixedly mounted on the top of the piston rod, and a connecting seat is rotatably mounted on the top of the rotating rod.
[0013] Preferably, a sealing ring is fixedly installed on the outer side of the top of the cylinder.
[0014] Preferably, a protective net is fitted over the outside of the cylinder body, and fixing rings are fixedly installed at the top and bottom of the protective net.
[0015] This invention provides an easy-to-install electro-hydraulic actuator. Compared with the prior art, it has the following advantages:
[0016] (1) The easy-to-install electro-hydraulic actuator, through the cooperation between the fixed base, mounting bracket and telescopic bracket, allows for adjustment and control of the installation method according to the actual site conditions, increasing the installation methods of the electro-hydraulic actuator, reducing limitations, and improving the stability of the electro-hydraulic actuator when operating under special installation conditions.
[0017] (2) By using the auxiliary plate and clamping plate, the electro-hydraulic actuator can be fixed after installation, which increases the fixing structure of the electro-hydraulic actuator and ensures that the electro-hydraulic actuator can maintain stable operation even with a special installation structure, thus improving the stability of the electro-hydraulic actuator when it is installed by the mounting frame and telescopic frame. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the assembly hole structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the mounting bracket adjustment structure of this utility model.
[0021] Figure 4 This is a schematic diagram of the fixing base structure of this utility model.
[0022] Figure 5 This is a schematic diagram of the auxiliary plate structure of this utility model.
[0023] In the diagram: 1. Cylinder body; 101. Piston rod; 102. Connecting seat; 103. Rotating rod; 104. Sealing ring; 105. Protective net; 106. Fixing ring; 2. Oil pump; 201. Fixing seat; 202. Locking hole; 203. Motor; 3. Mounting bracket; 301. Telescopic plate; 302. Limiting shaft; 303. Limiting hole; 304. Mounting seat; 305. Air guide cone; 306. Assembly hole; 307. Locking disc; 308. Locking shaft; 4. Auxiliary plate; 401. Fixing plate; 402. Slide groove; 403. Clamping plate; 404. Assembly column; 405. Threaded sleeve; 406. Threaded rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] Example 1
[0026] Please see Figures 1-5 As shown, this embodiment proposes an easy-to-install electro-hydraulic actuator, including a cylinder body 1 and an oil pump 2 assembled at the bottom of the cylinder body 1, as well as a mounting bracket 3 and an auxiliary plate 4 assembled outside the oil pump 2. A piston rod 101 is slidably installed inside the cylinder body 1. A fixed seat 201 is fixedly installed outside the oil pump 2. Locking holes 202 are evenly spaced on the surface of the fixed seat 201. A motor 203 is fixedly installed at the bottom of the oil pump 2. The top of the mounting bracket 3 is movably installed outside the fixed seat 201. A telescopic plate 301 is slidably installed at the bottom of the mounting bracket 3. Limiting holes 303 are evenly spaced on the outer side of the telescopic plate 301. A limiting shaft 302 that cooperates with the limiting holes 303 is threadedly installed on the bottom of the outer side of the mounting bracket 3. A mounting base 304 is fixedly installed at the bottom of the telescopic plate 301. A locking disc 307 is fixedly installed on the outer side of the top of the mounting bracket 3. A locking shaft 308 that is inserted into the locking hole 202 is bolted onto the locking disc 307. An assembly hole 306 is opened on the outer side of the top of the mounting bracket 3.
[0027] In use, the oil pump 2 drives the oil in the electro-hydraulic actuator, and the motor 203 provides power to the oil pump 2 during operation. The oil pump 2 and motor 203 inject oil into the cylinder 1, extending the piston rod 101. Conversely, the oil pump 2 and motor 203 retract the piston rod 101 when extracting oil from the cylinder 1. Thus, the extension and retraction of the piston rod 101 is achieved through the cooperation of the oil pump 2 and motor 203. The top of the mounting bracket 3 is rotatably mounted outside the fixed base 201, and the bottom of the mounting bracket 3 is slidably mounted on the telescopic plate 301. The telescopic plate 301 can extend and retract inside the mounting bracket 3, and a mounting seat 304 is fixedly mounted on the bottom of the telescopic plate 301. Therefore, the mounting bracket 3, telescopic plate 301, and mounting seat 304 together enable the electro-hydraulic actuator to operate... The mounting bracket 3 is designed to be rotated and adjusted to allow for different installation methods for the electro-hydraulic actuator. Adjusting the bracket 3 to a horizontal position allows for horizontal support, while adjusting it to a vertical position allows for vertical support. This allows operators to easily adjust the installation method according to the actual site conditions, increasing installation options and reducing limitations. Furthermore, the extension of the telescopic plate 301 facilitates vertical support of the electro-hydraulic actuator by the mounting base 304. After the mounting bracket 3 is rotated and adjusted, the locking shaft 308 on the locking disc 307 can be inserted into the assembly hole 306 for locking, and the limiting shaft 302 can be inserted into the limiting hole 303 to lock the telescopic plate 301 after extension and retraction adjustment, ensuring the stability of the mounting bracket 3 during adjustment.
[0028] Example 2
[0029] Based on Example 1, such as Figure 1 , Figure 3 and Figure 5 As shown, a sliding groove 402 is provided on the back of the auxiliary plate 4, and a clamping plate 403 is slidably installed inside the sliding groove 402. An assembly column 404 that mates with the assembly hole 306 is fixedly installed on the inner side of the clamping plate 403. A fixing plate 401 is fixedly installed on the top and bottom of the auxiliary plate 4.
[0030] In use, by retracting the two sets of clamping plates 403, the assembly column 404 can be inserted into the assembly hole 306, thereby allowing the auxiliary plate 4 to be installed on the outside of the mounting frame 3. The top and bottom of the auxiliary plate 4 are fixedly installed with fixing plates 401, which can fix the auxiliary plate 4. Through the cooperation of the auxiliary plate 4, clamping plates 403, and assembly column 404, the mounting frame 3 can provide auxiliary fixation when supporting the electro-hydraulic actuator during installation, increasing the structure for fixing the electro-hydraulic actuator during installation and improving the stability of the electro-hydraulic actuator during operation.
[0031] like Figures 1-3 As shown, a guide cone plate 305 is fixedly installed on the top of the mounting base 304.
[0032] When in use, the air guide cone 305 can guide and divert the hot air discharged by the motor 203 when the mounting bracket 3 is in a vertical state, thereby avoiding the situation where the normal heat dissipation of the motor 203 is not able to be discharged due to the folding of the mounting base 304, which would cause high temperature damage and ensure the stability of the electro-hydraulic actuator during operation.
[0033] like Figure 5 As shown, threaded sleeves 405 are fixedly installed on the inner side of the clamping plate 403, and the threaded sleeves 405 are connected to each other by threaded rods 406.
[0034] In use, the threaded rod 406 can be rotated to shrink and expand the threaded sleeve 405, thereby shrinking and expanding the clamping plate 403 through the threaded rod 406 and the threaded sleeve 405, ensuring the stability of the clamping plate 403 when it is fitted outside the mounting frame 3.
[0035] like Figures 1-4 As shown, a rotating rod 103 is fixedly installed on the top of the piston rod 101, and a connecting seat 102 is rotatably installed on the top of the rotating rod 103.
[0036] In use, the rotating rod 103 can rotate the connecting seat 102 for installation. The connecting seat 102 facilitates the connection between the electro-hydraulic actuator and the external structure, thereby facilitating the electro-hydraulic actuator to drive the external structure. The rotating rod 103 can also be used to adjust the rotation of the connecting seat 102 during connection.
[0037] like Figures 1-4 As shown, a sealing ring 104 is fixedly installed on the outer side of the top of the cylinder 1.
[0038] In use, the sealing ring 104 can provide a flexible seal at the connection between the piston rod 101 and the cylinder 1, thereby improving the sealing performance of the electro-hydraulic actuator during operation.
[0039] like Figure 1 As shown, a protective net 105 is fitted around the outside of the cylinder body 1, and a fixing ring 106 is fixedly installed at the top and bottom of the protective net 105.
[0040] In use, the fixing ring 106 can be used to install and fix the protective net 105. The protective net 105 can shield and protect the outside of the cylinder body 1, avoiding damage to the cylinder body 1 caused by external impacts, and improving the safety of the electro-hydraulic actuator during operation.
[0041] Working principle: The oil pump 2 and motor 203 provide power to the cylinder 1 during operation, driving the piston rod 101 to extend and retract. The mounting bracket 3, telescopic plate 301, and mounting base 304 support the electro-hydraulic actuator. The working angle of the mounting bracket 3 can be rotated to adjust and control the support and installation mode of the electro-hydraulic actuator. The locking disc 307, locking shaft 308, and locking hole 202 work together to lock the mounting bracket 3 after adjustment, ensuring the stability of the mounting bracket 3 when supporting the electro-hydraulic actuator after angle adjustment. The auxiliary plate 4 and clamping plate 403 can provide auxiliary fixing treatment when the mounting bracket 3 supports the electro-hydraulic actuator, increasing the fixing structure of the mounting bracket 3 when supporting the electro-hydraulic actuator and ensuring the stability of the mounting bracket 3 when supporting the electro-hydraulic actuator.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An easy-to-install electro-hydraulic actuator, characterized in that: Includes a cylinder block and an oil pump mounted at the bottom of the cylinder block, as well as a mounting bracket and auxiliary plate mounted on the outside of the oil pump; A piston rod is slidably installed inside the cylinder, and a fixed seat is fixedly installed on the outside of the oil pump. Locking holes are equally spaced on the surface of the fixed seat, and a motor is fixedly installed at the bottom of the oil pump. The top of the mounting bracket is movably mounted outside the fixed base. A telescopic plate is slidably mounted on the bottom of the mounting bracket. Limiting holes are equidistantly provided on the outer side of the telescopic plate. A limiting shaft that mates with the limiting holes is threaded onto the bottom of the outer side of the mounting bracket. A mounting base is fixedly mounted on the bottom of the telescopic plate. A locking disc is fixedly mounted on the outer side of the top of the mounting bracket. A locking shaft that is inserted into the locking hole is bolted onto the locking disc. An assembly hole is provided on the outer side of the top of the mounting bracket. The auxiliary plate has a sliding groove on its back, and a clamping plate is slidably installed inside the sliding groove. An assembly column that mates with the assembly hole is fixedly installed on the inner side of the clamping plate. Fixing plates are fixedly installed on the top and bottom of the auxiliary plate.
2. The easily installable electro-hydraulic actuator according to claim 1, characterized in that: An air guide cone plate is fixedly installed on the top of the mounting base.
3. The easily installable electro-hydraulic actuator according to claim 1, characterized in that: The inner sides of each clamp are fixedly fitted with threaded sleeves, and the threaded sleeves are connected to each other by threaded rods.
4. The easily installable electro-hydraulic actuator according to claim 1, characterized in that: A rotating rod is fixedly mounted on the top of the piston rod, and a connecting seat is rotatably mounted on the top of the rotating rod.
5. The easily installable electro-hydraulic actuator according to claim 1, characterized in that: A sealing ring is fixedly installed on the outer side of the top of the cylinder.
6. The easily installable electro-hydraulic actuator according to claim 1, characterized in that: The cylinder body is covered with a protective net, and the top and bottom of the protective net are fixedly installed with retaining rings.