Hydraulic cylinder with locking mechanism
By welding a top joint and a top support to the main cylinder body of the hydraulic cylinder, and using the magnetic attraction and fixation of the electromagnet plate and the connecting slider, combined with the positioning structure of the guide sleeve and the locking block, the problem of hydraulic cylinder piston rod wobbling is solved, and a more stable locking effect is achieved.
Patent Information
- Application Number
- CN202520311921.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing hydraulic cylinders lack an effective piston rod locking mechanism, resulting in unstable hydraulic oil and easy up-and-down wobbling of the piston rod.
A top joint and a top support are welded onto the main cylinder body of the hydraulic cylinder. The connecting slider is fixed by magnetic attraction through the cooperation of an electromagnet plate and a connecting slider. Combined with the positioning structure of the guide sleeve and the locking block, the piston rod is locked.
This effectively avoids the problem of piston rod wobbling up and down due to unstable hydraulic oil, and improves the locking firmness of the hydraulic cylinder installation position.
Smart Images

Figure CN223676661U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydraulic cylinder technical field, concretely is a kind of hydraulic cylinder with locking mechanism. BACKGROUND
[0002] Hydraulic cylinder is the hydraulic energy into mechanical energy, do linear reciprocating motion's hydraulic actuator, it simple structure, work reliable.It is used to realize reciprocating motion, can dispense with speed reducer, and there is no transmission gap, movement is stable, so it is widely used in the hydraulic system of various machines.
[0003] For example, the announcement number is: CN215762568U (named a kind of hydraulic cylinder with locking mechanism), including mounting seat and inserting block, the mounting seat is equipped with insertion slot, and insertion slot is equipped with installation cavity on the both side wall surface, the installation cavity is rotationally connected with wedge-shaped rotating block in the installation cavity by rotating shaft, and wedge-shaped rotating block is equipped with chute on the inclined surface, the inserting block is arranged in insertion slot, and the hydraulic cylinder body is equipped on the inserting block, the side wing sleeve is equipped on the hydraulic cylinder body, open electric telescopic rod, electric telescopic rod drives sliding block to move, sliding block drives connecting rod to move, connecting rod drives sliding block to slide in chute, sliding block drives wedge-shaped rotating block to rotate, wedge-shaped rotating block drives plug rod to rotate, when plug rod is inserted into insertion slot, inserting block is fixed, plug rod is pulled out from insertion slot, at this time, the inserting block can be taken out, so that the device can conveniently lock and release the inserting block, to facilitate the installation and maintenance of hydraulic cylinder body, it is easy to operate, time-saving and labor-saving.
[0004] The above-mentioned hydraulic cylinder is locked and positioned by the setting top rod clamping mechanism to the installation position of the hydraulic cylinder, but the piston rod position of the hydraulic cylinder lacks effective locking mechanism, and the piston rod is prone to up and down shaking due to unstable hydraulic oil, therefore, we provide a hydraulic cylinder with locking mechanism. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of hydraulic cylinder with locking mechanism to solve the problem that the existing hydraulic cylinder is locked and positioned by the setting top rod clamping mechanism to the installation position of the hydraulic cylinder in the above background art, but the piston rod position of the hydraulic cylinder lacks effective locking mechanism, and the piston rod is prone to up and down shaking due to unstable hydraulic oil.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of hydraulic cylinder with locking mechanism, including mounting seat plate, the inside of mounting seat plate is provided with installation recess, installation recess is provided with main cylinder body in the inside, and the piston rod of main cylinder body is provided with top joint by welding;
[0007] Further comprising:
[0008] The vertical seat plate is fixedly connected with the mounting seat plate through screws, and the inside of the vertical seat plate is provided with an inner sliding groove, and the inside of the inner sliding groove is fixedly provided with an electromagnet plate through a nail-free adhesive;
[0009] The connecting sliding block is movably arranged in the inside of the inner sliding groove, and a connecting rod is welded on the outer wall of the connecting sliding block, one end of the connecting rod is welded with a penetrating screw rod, and the penetrating screw rod is penetratingly fixed with the hole in the inside of the top joint;
[0010] The guide sleeve seat is arranged at the both sides of the mounting groove, and the two guide sleeve seats are integrated with the mounting seat plate, and the inside of the two guide sleeve seats is penetratingly provided with a locking plug;
[0011] The positioning screw hole is arranged in the inside of the locking plug, and the inside of the positioning screw hole is provided with a positioning screw pin.
[0012] Preferably, the connecting position of the positioning screw pin, the guide sleeve seat and the mounting seat plate is provided with a penetrating screw hole and a threaded hole, the penetrating screw hole is integrated with the guide sleeve seat, and the threaded hole is integrated with the mounting seat plate.
[0013] Preferably, the rear end surface of the vertical seat plate is provided with a distribution box and a switch, the output end of the distribution box is electrically connected with the input end of the switch, and the output end of the switch is electrically connected with the input end of the electromagnet plate.
[0014] Preferably, the both side inner walls of the inner sliding groove are provided with limiting sliding ways, the inside of the connecting sliding block is movably provided with two rollers through bearings and connecting shafts, and the connecting sliding block is rolling connected with the two limiting sliding ways through the two rollers.
[0015] Preferably, the upper end of the top joint is provided with a jacking seat, and the jacking seat is integrated with the top joint.
[0016] Preferably, the upper end of the locking plug is provided with a handle block, and the handle block is integrated with the locking plug.
[0017] Preferably, the four end positions of the mounting seat plate are provided with connecting hole plates, and the four connecting hole plates are integrated with the mounting seat plate.
[0018] Compared with the prior art, the utility model has the advantages that:
[0019] 1. The utility model discloses a piston rod on the upper end of main cylinder body welds top joint and top support seat, and the top support seat is used for acting as the abutment of top support end and object, when the piston rod is jacked, the connecting sliding block is driven to vertically guide in the inside of the inner slide groove through the penetrating screw rod and connecting rod, after the piston rod moves to the top support position, the switch is pressed to make the distribution box power supply for the electromagnet plate, the electromagnet plate generates magnetic force after power supply and fixes the connecting sliding block, thereby the position of top joint is locked, overcome the locking position of the installation of hydraulic cylinder through the setting top rod clamping mechanism of existing hydraulic cylinder, but the piston rod position of hydraulic cylinder lacks effective locking mechanism, and the piston rod is easily shaken up and down due to the instability of hydraulic oil.
[0020] 2. By placing the main cylinder body to the inside of the installation recess, then the locking insert block is inserted and installed in the inside of the two guide sleeve seats, one end of the locking insert block is pressed on the outer wall of the main cylinder body and locked, and the positioning screw pin is installed in the inside of the positioning screw hole, threaded hole and through screw hole, thereby the locking insert block is positioned, and the firmness of the locking position of the installation of hydraulic cylinder is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the whole structure schematic diagram of the utility model's hydraulic cylinder with locking mechanism;
[0022] Figure 2 It is the inside structure schematic diagram of the utility model's vertical seat plate;
[0023] Figure 3 It is the connecting structure schematic diagram of the utility model's connecting sliding block and inner slide groove;
[0024] Figure 4 It is the connecting structure schematic diagram of the utility model's locking insert block and guide sleeve seat;
[0025] In the drawing: 1, mounting seat plate;2, connecting hole plate;3, installation recess;4, main cylinder body;5, guide sleeve seat;6, locking insert block;7, top joint;8, top support seat;9, penetrating screw rod;10, vertical seat plate;11, inner slide groove;12, distribution box;13, electromagnet plate;14, switch;15, connecting sliding block;16, connecting rod;17, limit slide;18, roller;19, handle block;20, positioning screw hole;21, threaded hole;22, through screw hole;23, positioning screw pin. DETAILED DESCRIPTION
[0026] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0027] Please refer to Figures 1-4The utility model provides an embodiment: a hydraulic cylinder with locking mechanism, including mounting seat board 1, the inside of mounting seat board 1 is provided with installation recess 3, and the inside installation of installation recess 3 is provided with main cylinder body 4, and the piston rod of main cylinder body 4 is welded with top joint 7;
[0028] Further comprising:
[0029] Vertical seat board 10 is set on the rear end position of main cylinder body 4, and vertical seat board 10 is fixedly connected with mounting seat board 1 through screw, and the inside of vertical seat board 10 is provided with inner slide groove 11, and the inside of inner slide groove 11 is fixedly provided with electromagnet plate 13 through nail-free glue, and electromagnet plate 13 is provided with switch 12.
[0030] Connecting sliding block 15 is movably arranged in the inside of inner slide groove 11, and connecting rod 16 is welded on the outer wall of connecting sliding block 15, one end of connecting rod 16 is welded with penetrating screw rod 9, and penetrating screw rod 9 is fixedly connected with the perforation in the inside of top joint 7.
[0031] Guide sleeve seat 5 is arranged at both sides of installation recess 3, and the two guide sleeve seats 5 are integrated with mounting seat board 1, and the inside of the two guide sleeve seats 5 is provided with locking plug-in block 6.
[0032] Positioning screw hole 20 is arranged in the inside of locking plug-in block 6, and positioning screw pin 23 is arranged in the inside of positioning screw hole 20.
[0033] When using, the piston rod on the upper end of main cylinder body is welded with top joint and top support seat, the top support seat is used to act as a top support end and abuts against an object, when the piston rod is lifted, the connecting sliding block is driven to vertically guide in the inside of inner slide groove through penetrating screw rod and connecting rod, after the piston rod is moved to the top support position, the switch is pressed to make the distribution box power supply electromagnet plate, the electromagnet plate generates magnetic force after power supply and is fixedly connected with the connecting sliding block, so that the position of top joint is locked.
[0034] Please refer to Figure 4 Positioning screw pin 23 is arranged with through screw hole 22 and threaded hole 21 at the connecting position of guide sleeve seat 5 and mounting seat board 1, the through screw hole 22 is integrated with guide sleeve seat 5, the threaded hole 21 is integrated with mounting seat board 1, and the through screw hole 22 and threaded hole 21 arranged at the connecting position of guide sleeve seat 5 and mounting seat board 1 of positioning screw pin 23 play the role of corresponding connection with positioning screw hole 20.
[0035] Please refer to Figure 2The rear end surface of the vertical seat plate 10 is provided with a distribution box 12 and a switch 14. The output end of the distribution box 12 is electrically connected with the input end of the switch 14, and the output end of the switch 14 is electrically connected with the input end of the electromagnet plate 13. The distribution box 12 and the switch 14 provided on the rear end surface of the vertical seat plate 10 serve to supply power to the electromagnet plate 13.
[0036] Please refer to Figure 3 The two side inner walls of the inner sliding groove 11 are provided with limiting sliding channels 17. The interior of the connecting sliding block 15 is movably provided with two rollers 18 through bearings and connecting shafts. The connecting sliding block 15 is rolling connected with the two limiting sliding channels 17 through the two rollers 18. The limiting sliding channels 17 provided on the two side inner walls of the inner sliding groove 11 serve to assist the connecting sliding block 15 in preventing sliding and falling off.
[0037] Please refer to Figure 1 The upper end of the top connector 7 is provided with a top supporting seat 8. The top supporting seat 8 and the top connector 7 are of an integrated structure. The top supporting seat 8 provided on the upper end of the top connector 7 serves to support and abut against objects.
[0038] Please refer to Figure 4 The upper end of the locking plug 6 is provided with a handle block 19. The handle block 19 and the locking plug 6 are of an integrated structure. The handle block 19 provided on the upper end of the locking plug 6 serves to facilitate the grasping, dismounting and mounting of the locking plug 6.
[0039] Please refer to Figure 1 The four ends of the mounting seat plate 1 are provided with connecting hole plates 2. The four connecting hole plates 2 and the mounting seat plate 1 are of an integrated structure. The connecting hole plates 2 provided on the four ends of the mounting seat plate 1 serve to facilitate the fastening and mounting of the mounting seat plate 1.
[0040] Working principle: In use, the connecting hole plate 2 is mounted to the use table of the hydraulic cylinder through the fastening bolt, then the main cylinder body 4 is placed into the mounting recess 3, and then the locking plug 6 is inserted and mounted into the two guide sleeve seats 5, so that one end of the locking plug 6 is pressed against the outer wall of the main cylinder body 4 for locking, and the positioning screw pin 23 is mounted into the positioning screw hole 20, the threaded connecting hole 21 and the penetrating screw hole 22, so as to position the locking plug 6, thereby improving the fastening degree of the locking of the mounting position of the hydraulic cylinder. The piston rod at the upper end of the main cylinder body 4 is welded with the top connector 7 and the top supporting seat 8. The top supporting seat 8 is used as a top supporting end head to abut against objects. When the piston rod is lifted, the connecting sliding block 15 is driven to vertically move in the inner sliding groove 11 through the penetrating screw rod 9 and the connecting rod 16. After the piston rod is lifted to the top supporting position, the switch 14 is pressed to supply power to the electromagnet plate 13 through the distribution box 12. After the electromagnet plate 13 is powered, the magnetic force is generated to attract and fix the connecting sliding block 15, so as to lock the position of the top connector 7, thereby avoiding the up and down shaking of the piston rod due to the instability of the hydraulic oil. The use of the hydraulic cylinder with the locking mechanism is completed.
[0041] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is to be construed as limiting the application to a specific embodiment unless otherwise explicitly claimed.
Claims
1. A hydraulic cylinder with locking mechanism, comprising a mounting base plate (1), the inside of the mounting base plate (1) is provided with a mounting groove (3), the inside of the mounting groove (3) is provided with a main cylinder body (4), the piston rod of the main cylinder body (4) is welded with a top joint (7); characterized in that Further comprising: A vertical seat plate (10) is arranged at the rear end position of the main cylinder body (4), the vertical seat plate (10) is fixedly connected with the mounting base plate (1) through screws, and the inside of the vertical seat plate (10) is provided with an inner sliding groove (11), the inside of the inner sliding groove (11) is fixedly provided with an electromagnet plate (13) through a nail-free adhesive; A connecting sliding block (15) is movably arranged in the inside of the inner sliding groove (11), and a connecting rod (16) is welded on the outer wall of the connecting sliding block (15), one end of the connecting rod (16) is welded with a penetrating screw rod (9), and the penetrating screw rod (9) is penetratingly fixed with a through hole in the inside of the top joint (7); A guide sleeve seat (5) is arranged at the both sides of the mounting groove (3), the two guide sleeve seats (5) are integrated with the mounting base plate (1), and the inside of the two guide sleeve seats (5) are penetratingly provided with locking insertion blocks (6); A positioning screw hole (20) is arranged in the inside of the locking insertion block (6), and a positioning screw pin (23) is arranged in the inside of the positioning screw hole (20).
2. The hydraulic cylinder with locking mechanism according to claim 1, characterized in that: The connecting position of the positioning screw pin (23), the guide sleeve seat (5) and the mounting base plate (1) is provided with a through screw hole (22) and a threaded hole (21), the through screw hole (22) is integrated with the guide sleeve seat (5), and the threaded hole (21) is integrated with the mounting base plate (1).
3. The hydraulic cylinder with locking mechanism according to claim 1, characterized in that: The rear end surface of the vertical seat plate (10) is provided with a distribution box (12) and a switch (14), the output end of the distribution box (12) is electrically connected with the input end of the switch (14), and the output end of the switch (14) is electrically connected with the input end of the electromagnet plate (13).
4. The hydraulic cylinder with locking mechanism according to claim 1, wherein: The both side inner walls of the inner sliding groove (11) are provided with limiting sliding channels (17), two rollers (18) are movably arranged in the inside of the connecting sliding block (15) through bearings and connecting shafts, and the connecting sliding block (15) is rolling connected with the two limiting sliding channels (17) through the two rollers (18).
5. The hydraulic cylinder with locking mechanism according to claim 1, wherein: The upper end of the top joint (7) is provided with a top support seat (8), and the top support seat (8) is integrated with the top joint (7).
6. The hydraulic cylinder with locking mechanism according to claim 1, wherein: The upper end of the locking insertion block (6) is provided with a handle block (19), and the handle block (19) is integrated with the locking insertion block (6).
7. The hydraulic cylinder with locking mechanism according to claim 1, wherein: The four end positions of the mounting base plate (1) are provided with connecting hole plates (2), and the four connecting hole plates (2) are integrated with the mounting base plate (1).
Citation Information
Patent Citations
Hydraulic cylinder with locking mechanism
CN215762568U