Safe return device of log splitter

By installing components such as buffer rods, shims, protective frames, and damping parts on the wood splitter, the impact problem during the extension and retraction of the piston rod of the drive cylinder is solved, achieving stable safe return and long service life of the equipment.

CN223877176UActive Publication Date: 2026-02-06LAIZHOU LAISEN MASCH MFG CO LTD
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Patent Information

Application Number
CN202520477507.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-06
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing wood splitters require significant maneuvering of the hydraulic cylinder piston rod during operation, but lack effective protection, resulting in reduced safety return performance and a risk of mechanical damage.

Method used

Design a safety return device that protects the piston assembly from impact by setting a buffer rod and a shim, and provides secondary buffering by combining a protective frame and damping components. The guide block and buffer ring absorb part of the impact force to ensure stable operation of the hydraulic cylinder.

Benefits of technology

Effective control of return speed reduces mechanical damage, extends the service life of the wood splitter, improves safe return effect, reduces failure rate, and enhances equipment stability and wood splitting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safe return device of a log splitter, which belongs to the field of log splitters, and comprises a body mechanism, a connecting mechanism is mounted at the outer end of the body mechanism, a protective mechanism is mounted at the inner end of the body mechanism, the protective mechanism comprises a connecting piece, and the connecting piece is connected with the connecting mechanism. A plurality of connecting pieces are movably connected to the rear portion, in sliding connection with the piston rod, of the inner end of the body mechanism, first buffer rods are installed at the rear ends of the connecting pieces, and the first buffer rods are of an I-shaped structure; when the oil cylinder is arranged to move, a connecting piece can protect impact force when a piston assembly in the oil cylinder operates, and acting force is subjected to secondary buffering protection through a first buffering rod and a gasket, so that the oil cylinder can effectively control the returning speed of operation, and mechanical damage caused by too high speed is avoided; therefore, when the log splitter operates, the service life of the log splitter is prolonged, the failure rate is reduced, and the safe return effect of the log splitter is improved by reducing severe impact during return.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a wood splitting machine field, especially a safe return device of wood splitting machine. BACKGROUND

[0002] The main function of the wood splitting machine is wood splitting processing, and the wood splitting machine can efficiently split wood into the required size, saves manpower and time, and is used in the wood processing industry, landscaping, fuel wood production and other fields;

[0003] Chinese patent authorization application number: CN200620100682.4 provides a wood splitting machine, when the wood splitting machine is moved, the handle is pressed backward, the front supporting leg is away from the ground, at this time, all the weight is borne by the two driving wheels, and the wood splitting machine is dragged to walk, which is labor-saving and convenient; when the wood splitting machine works, first, the connecting plate is separated from the pin, the rear supporting leg is lowered, and then the handle is pushed forward to make the two driving wheels away from the ground, the connecting plate is hung on the pin on the trailer frame, at this time, the rear supporting leg contacts the ground, the front supporting leg also contacts the ground, and the driving wheel does not contact the ground, so that the wood splitting machine is stable and firm on the ground, and no other danger occurs, and the operation is safe. When the wood splitting is finished, the connecting plate is removed from the pin and installed on the pin.

[0004] The existing wood splitting machine has certain disadvantages in use, first, the driving cylinder piston rod of the wood splitting machine needs to be extended and retracted when in use, therefore, the driving assembly of the wood splitting machine is not protected, and the safe return effect of the wood splitting machine is reduced, therefore, the safe return device of the wood splitting machine is provided. Utility model content

[0005] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a safe return device of wood splitting machine, when the oil cylinder of the wood splitting machine moves, the connecting piece can protect the impact force when the internal piston assembly operates, the acting force is protected by the buffer rod one and the gasket for the second time, so that the oil cylinder can effectively control the return speed of operation, avoid mechanical damage caused by too fast, and slow down the impact force of the piston, reduce the wear of the equipment, so that the wood splitting machine can reduce the violent impact when returning during operation, prolong the service life of the wood splitting machine, reduce the failure rate, and improve the safe return effect of the wood splitting machine.

[0006] The above technical purpose of the utility model is realized through the following technical scheme:

[0007] A safe return device of wood splitting machine, comprising a body mechanism, a connecting mechanism is installed at the outer end of the body mechanism, and a protection mechanism is installed at the inner end of the body mechanism.

[0008] The protective mechanism includes connecting parts. Multiple connecting parts are movably connected to the rear of the piston rod that is slidably connected to the inner end of the main body mechanism. Each connecting part has a buffer rod installed at its rear end. The buffer rod has an "I" shaped structure. A buffer groove is opened at the outer end of the buffer rod. A gasket is installed at the rear end of the buffer rod.

[0009] The safe return function of the wood splitter can be improved by installing a buffer rod and a shim.

[0010] Furthermore, a protective frame is movably connected to the outer side of the gasket, and a damping element is installed at the inner end of the protective frame.

[0011] By installing protective frames and damping components, the protective effect of the safety return device structure can be further improved.

[0012] Furthermore, the damping elements are evenly distributed, and a buffer pad is installed at the front end of each damping element.

[0013] By installing a buffer pad, the stability of the protective fit between the buffer pad and the gasket is improved.

[0014] Furthermore, the main body mechanism includes a frame, a support plate is installed at the front end of the frame, a hydraulic cylinder is movably connected to the inner end of the frame, and a connecting seat is hinged to the outer end of the hydraulic cylinder.

[0015] By installing a connector, the connection between the wood splitter and the hydraulic cylinder can be made stable.

[0016] Furthermore, a wood-splitting knife is installed at the front end of the connecting seat, a reinforcing seat is movably connected to the rear end of the hydraulic cylinder, and a hinge seat is installed at the outer end of the reinforcing seat.

[0017] Installing a reinforcing bracket can make the hinge bracket more stable.

[0018] Furthermore, the hinge seat is hinged to one end of the oil cylinder, and a bracket is installed at the bottom of the main body mechanism.

[0019] The stability of the structure during operation can be further improved by installing a hinge mount.

[0020] Furthermore, guide frames are movably connected to both sides of the wood splitter, a reinforcing rod is installed at the inner end of the guide frame, a guide block is installed at the bottom end of each guide frame, a sliding rod is slidably connected to the outer end of the guide block, and a buffer ring is sleeved on the outer end of the sliding rod.

[0021] The safety return effect of the wood splitter can be further improved by installing guide blocks and buffer rings.

[0022] Furthermore, a sliding block is installed at the bottom end of the guide block, and a guide groove is provided at the outer end of the sliding block.

[0023] By installing guide grooves, the guide grooves can guide the guide blocks and sliding blocks, making the structure run smoothly and stably.

[0024] In summary, this utility model has the following beneficial effects:

[0025] 1. By setting buffer rod 1 and shims, when the hydraulic cylinder of the wood splitter moves, the internal piston assembly can protect against the impact force during operation. The force is further buffered and protected by buffer rod 1 and shims, which allows the hydraulic cylinder to effectively control the return speed, avoid mechanical damage caused by excessive speed, and reduce the impact force of the piston, thereby reducing wear on the equipment. This allows the wood splitter to extend its service life, reduce the failure rate, and improve the safe return effect of the wood splitter by reducing the violent impact during return.

[0026] 2. By setting up a protective frame and damping components, the protective frame, together with multiple damping components, can buffer and suppress the force transmitted by the buffer rod and the pad, thereby making the operation of the hydraulic cylinder more stable and maintaining the stable operation of the equipment. This further improves the protective effect of the coordinated operation between the structures of the safety return device.

[0027] 3. By setting guide blocks and buffer rings, when the wood splitter is working, the guide blocks can move simultaneously with the moving force of the guide frame and the wood splitter. The moving guide blocks are guided by the slide rod, and the buffer ring outside the slide rod buffers the transmitted force. It can absorb part of the impact force when the wood splitter is running, reduce the direct collision between the wood splitter and the wood, and extend the service life of the blade. Through effective guidance and buffering, the quality and efficiency of wood splitting are improved, waste is reduced, and the safety return effect of the wood splitter is further improved. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0029] Figure 2 This is a schematic diagram of the cross-section of the hydraulic cylinder in this embodiment;

[0030] Figure 3 This is in this embodiment Figure 2 A magnified structural diagram of the plane at point A in the middle;

[0031] Figure 4 This is a schematic diagram of the plane of the connecting mechanism in this embodiment;

[0032] Figure 5 This is in this embodiment Figure 4 A magnified schematic diagram of the plane at point B.

[0033] In the diagram, 1. Main body mechanism; 101. Frame; 102. Support plate; 103. Hydraulic cylinder; 104. Connecting seat; 105. Wood splitter; 106. Reinforcing seat; 107. Hinge seat; 108. Trailer; 2. Connecting mechanism; 201. Guide frame; 202. Reinforcing rod; 203. Guide block; 204. Sliding rod; 205. Buffer ring; 206. Sliding block; 207. Guide groove; 3. Protective mechanism; 301. Connecting part; 302. Buffer rod one; 303. Buffer groove; 304. Shim; 305. Protective frame; 306. Damping component; 307. Buffer pad. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0036] Reference Figures 1-5 As shown, a safety return device for a wood splitter is provided in a preferred embodiment of the present invention, including a main body mechanism 1, a connecting mechanism 2 installed at the outer end of the main body mechanism 1, and a protective mechanism 3 installed at the inner end of the main body mechanism 1.

[0037] The protective mechanism 3 includes a connector 301. Multiple connectors 301 are movably connected to the rear of the piston rod that is slidably connected to the inner end of the main body mechanism 1. Each connector 301 has a buffer rod 302 installed at its rear end. The buffer rod 302 has an "I" shaped structure. The outer end of the buffer rod 302 has a buffer groove 303. A gasket 304 is installed at the rear end of the buffer rod 302.

[0038] Reference Figures 2-3 As shown, the outer side of the gasket 304 is movably connected to a protective frame 305, and a damping element 306 is installed at the inner end of the protective frame 305.

[0039] Reference Figure 3 As shown, the damping elements 306 are evenly distributed, and a buffer pad 307 is installed at the front end of the damping elements 306.

[0040] When the oil cylinder 103 of the wood splitting machine moves, the internal piston assembly can protect the impact force when the operating connection 301 is in operation, the force is buffered by the buffer rod one 302 and the gasket 304, and the protection frame 305 cooperates with the plurality of damping members 306 to buffer the force conducted by the buffer rod one 302 and the gasket 304, so that the operation of the oil cylinder 103 is more stable, the stable operation of the equipment is maintained, the buffer pad 307 can contact the gasket 304, the force conducted by the gasket 304 can be buffered, and the oil cylinder 103 can effectively control the return speed during operation, avoid mechanical damage caused by too fast, and slow down the impact force of the piston, reduce the wear of the equipment, so that the wood splitting machine can operate by reducing the violent impact during return, prolong the service life of the wood splitting machine.

[0041] Referring to Figure 1 Further, the body mechanism 1 includes a rack 101, a support plate 102 is installed at the front end of the rack 101, an oil cylinder 103 is movably connected at the inner end of the rack 101, and a connecting seat 104 is hingedly connected at the outer end of the oil cylinder 103.

[0042] Referring to Figure 1 Further, the wood splitting knife 105 is installed at the front end of the connecting seat 104, the reinforcing seat 106 is movably connected at the rear end of the oil cylinder 103, and the hinge seat 107 is installed at the outer end of the reinforcing seat 106.

[0043] Referring to Figure 1 Further, the hinge seat 107 is hingedly connected to one end of the oil cylinder 103, and the body mechanism 1 is installed at the bottom end of the rack 108.

[0044] By installing the connecting seat 104, the wood splitting knife 105 and the transmission end of the oil cylinder 103 can be reinforced and connected, the connection and installation between the wood splitting knife 105 and the oil cylinder 103 are stable, the reinforcing seat 106 can form a reinforcing structure at the outer end of the hinge seat 107, the hinge seat 107 is used stably, and the hinge seat 107 can be connected between the oil cylinder 103 and the reinforcing seat 106, so that the oil cylinder 103 is conveniently connected during operation, and the stability of the structure during operation and use is further improved.

[0045] Referring to Figures 4-5 Further, the guide frame 201 is movably connected to both sides of the wood splitting knife 105, the reinforcing rod 202 is installed at the inner end of the guide frame 201, the guide block 203 is installed at the bottom end of the guide frame 201, the sliding rod 204 is slidingly connected to the outer end of the guide block 203, and the buffer ring 205 is sleeved on the outer end of the sliding rod 204.

[0046] Referring to Figure 5As shown, further, the bottom end of the guide block 203 is provided with a sliding block 206, and the outer end of the sliding block 206 is provided with a guide groove 207.

[0047] The guide block 203 can run simultaneously with the movement of the guide frame 201 and the splitting knife 105 under the action force, the moving guide block 203 is guided by the sliding rod 204, and the buffer ring 205 outside the sliding rod 204 buffers the transmitted action force, the guide groove 207 can guide the guide block 203 and the sliding block 206, and can absorb part of the impact force when the splitting knife 105 runs, reduces the direct collision of the splitting knife 105 with the wood, and prolongs the service life of the knife.

[0048] Specific implementation process: when the equipment runs, the oil cylinder 103 starts to cooperate with the driving assembly to enable the splitting knife 105 to run, the guide block 203 can run simultaneously with the movement of the guide frame 201 and the splitting knife 105 under the action force when the splitting knife 105 works, the moving guide block 203 is guided by the sliding rod 204, and the buffer ring 205 outside the sliding rod 204 buffers the transmitted action force, can absorb part of the impact force when the splitting knife 105 runs, reduces the direct collision of the splitting knife 105 with the wood, and prolongs the service life of the knife.

[0049] When the oil cylinder 103 operates, the connecting piece 301 can protect the impact force when the piston assembly in the oil cylinder 103 runs, the action force is secondarily buffered by the buffer rod one 302 and the gasket 304, the buffer rod one 302 and the gasket 304 can be buffered and inhibited by the protection frame 305 cooperating with the plurality of damping pieces 306, so that the oil cylinder 103 runs more stably, the equipment runs stably, the buffer pad 307 can contact the gasket 304, the action force transmitted by the gasket 304 can be buffered and protected, so that the oil cylinder 103 can effectively control the return speed of the running, avoid mechanical damage caused by too fast, and slow down the impact force of the piston, improve the stability and return safety of the equipment.

[0050] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety return device for a wood splitting machine, characterized in that: It includes a main body mechanism (1), a connecting mechanism (2) is installed at the outer end of the main body mechanism (1), and a protective mechanism (3) is installed at the inner end of the main body mechanism (1); The protective mechanism (3) includes a connector (301). The inner end of the main body mechanism (1) is slidably connected to the rear of the piston rod and multiple connectors (301) are movably connected. Each connector (301) has a buffer rod (302) installed at its rear end. The buffer rod (302) has an "I" shaped structure. The outer end of the buffer rod (302) has a buffer groove (303). The rear end of the buffer rod (302) has a gasket (304).

2. A safety return device for a wood splitting machine as defined in claim 1, characterized in that: A protective frame (305) is movably connected to the outer side of the gasket (304), and a damping element (306) is installed at the inner end of the protective frame (305).

3. A safety return device for a wood splitting machine as defined in claim 2, wherein: The damping elements (306) are evenly distributed, and a buffer pad (307) is installed at the front end of the damping elements (306).

4. A safety return device for a wood splitting machine as defined in claim 1, wherein: The main body mechanism (1) includes a frame (101), a support plate (102) is installed at the front end of the frame (101), a hydraulic cylinder (103) is movably connected to the inner end of the frame (101), and a connecting seat (104) is hinged to the outer end of the hydraulic cylinder (103).

5. A safety return device for a wood splitting machine as defined in claim 4, wherein: A wood splitter (105) is installed at the front end of the connecting seat (104), and a reinforcing seat (106) is movably connected to the rear end of the hydraulic cylinder (103). A hinge seat (107) is installed at the outer end of the reinforcing seat (106).

6. A safety return device for a wood splitting machine as defined in claim 5, wherein: The hinge seat (107) is hinged to one end of the oil cylinder (103), and a bracket (108) is installed at the bottom of the main body mechanism (1).

7. A safety return device for a wood splitting machine as defined in claim 5, wherein: The wood splitter (105) is movably connected to both sides of a guide frame (201). A reinforcing rod (202) is installed at the inner end of the guide frame (201). A guide block (203) is installed at the bottom end of the guide frame (201). A sliding rod (204) is slidably connected to the outer end of the guide block (203). A buffer ring (205) is sleeved on the outer end of the sliding rod (204).

8. A safety return device for a wood splitting machine as defined in claim 7, wherein: A sliding block (206) is installed at the bottom end of the guide block (203), and a guide groove (207) is provided at the outer end of the sliding block (206).

Citation Information

Patent Citations

  • Riving machine

    CN2905389Y