Cutter head quick disassembly structure for lawn vehicle and lawn vehicle

Abstract

The cutterhead quick-release structure comprises an installation assembly which is connected to a rocker arm capable of swinging relative to a frame of the lawn vehicle, the installation assembly comprises a suspension part, one end of the suspension part is hung at the free end of the rocker arm, and the other end of the suspension part is used for hanging a cutterhead; the rocker arm is provided with a connecting part used for hanging the hanging piece, and the hanging piece is provided with a via hole so that the hanging piece can be taken down from the connecting part through the via hole. According to the cutterhead quick disassembly structure for the lawn vehicle and the lawn vehicle, the cutterhead is connected to the rocker arm through the suspension piece, and meanwhile, the through hole is formed in the suspension piece, so that when the cutterhead is disassembled, the suspension piece can be directly taken down through the through hole, and quick disassembly of the cutterhead is conveniently achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lawn mower technical field especially a kind of cutterhead quick-release structure for lawn mower and lawn mower. BACKGROUND

[0002] Current lawn mower is commonly used garden tool, and the cutterhead of suspension type is generally used in lawn mower, the cutterhead needs to be replaced after long time work, or cutterhead shell is also needed to be disassembled and cleaned after being filled with weeds, to improve work efficiency, cutterhead needs to be quickly disassembled, cutterhead is replaced or weeds are cleaned up. However, the cutterhead of current lawn mower is inconvenient to disassemble, when replacing blade or cleaning weeds in mowing site, tool such as adjustable spanner is needed to disassemble cutterhead, if operator has no tool in mowing site, cutterhead cannot be disassembled, which affects work efficiency.

[0003] Therefore, the cutterhead mounting structure in prior art needs to be improved, so that operator can quickly disassemble cutterhead when having no tool such as adjustable spanner in mowing site, and work efficiency is improved. SUMMARY

[0004] Therefore, the cutterhead mounting structure in prior art needs to be improved, so that operator can quickly disassemble cutterhead when having no tool such as adjustable spanner in mowing site, and work efficiency is improved.

[0005] The cutterhead quick-release structure for lawn mower of the utility model, including the installation component that is connected to the swingable rocker arm of lawn mower frame, the installation component includes suspension piece, one end of the suspension piece is hung on the free end of rocker arm, the other end of the suspension piece is used for hanging cutterhead;

[0006] The rocker arm is provided with the connecting portion for hanging the suspension piece, and the suspension piece is provided with a through hole, so that the suspension piece can be removed from the connecting portion through the through hole.

[0007] Further, the through hole is an arc-shaped through hole, the suspension piece includes an installation portion, the installation portion is provided with an installation hole, the installation hole can be hung on the connecting portion, and the middle part of one side wall of the installation hole is outwardly protruded to form the arc-shaped through hole.

[0008] Further, the outer wall of the connecting portion is provided with a limiting groove, the installation portion is hung on the limiting groove, and the diameter size of the arc-shaped through hole is greater than the diameter size of the connecting portion.

[0009] Further, the suspension piece is a ring chain, and the ring chain includes a plurality of ring members, wherein the middle part of one side wall of one ring member close to the connecting portion is outwardly protruded to form the arc-shaped through hole.

[0010] Further, the hanging piece or the mounting portion is a hanging ring, and a middle portion of a side wall of the hanging ring is outwardly protruded to form the arc-shaped through hole.

[0011] Further, the mounting assembly further comprises a guide rod, rear and front ends of the guide rod are connected to the cutter head and the frame through fixing assembly I and fixing assembly II respectively.

[0012] Further, the front end of the guide rod is connected to the cross beam of the frame through the fixing assembly II.

[0013] Further, the cutter head is provided with a mounting lug I, the rear end of the guide rod is provided with a connecting rod I, the fixing assembly I comprises a pin shaft I, a shaft sleeve and an R-shaped pin I, the shaft sleeve is arranged on an inner wall of the connecting rod I, the pin shaft I passes through the shaft sleeve and installs the connecting rod I in the mounting lug I through the R-shaped pin I;

[0014] The cross beam of the frame is provided with a mounting lug II, the front end of the guide rod is provided with a connecting rod II, the fixing assembly II comprises a pin shaft II and an R-shaped pin II, the pin shaft II passes through the connecting rod II and installs the connecting rod II in the mounting lug II through the R-shaped pin.

[0015] Further, the cutter head is provided with a hanging seat, the hanging seat is provided with a hanging shaft, and the hanging shaft is hung on the hanging piece.

[0016] The lawn mower of the utility model, comprising the cutter head quick disassembly structure for the lawn mower.

[0017] The utility model discloses a cutter head quick disassembly structure for a lawn mower and a lawn mower, the cutter head is connected to the rocker arm through the hanging piece, and the hanging piece is provided with a through hole, so that when the cutter head is disassembled, the hanging piece can be directly taken off from the rocker arm through the through hole, and when the cutter head is installed, the cutter head can also be installed in the rocker arm through the through hole, so that the cutter head and the frame can be quickly disassembled and quickly installed, compared with the prior art, the working efficiency can be greatly improved, and the whole cutter head does not need to be taken off from the frame by using a movable wrench, so that an operator can conveniently disassemble the cutter head by hand, and therefore different use scenes can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings and embodiments:

[0019] Figure 1 It is the structure schematic view of the utility model;

[0020] Figure 2 It is the structure schematic view of another view of Figure 1

[0021] Figure 3 It is the position change schematic view of the hanging piece at the front position when the cutter head is disassembled.​

[0022] Figure 4 for Figure 2 a sectional view at A in Fig.

[0023] Figure 5 for Figure 2 a sectional view at B in Fig.

[0024] wherein the above-mentioned figures contain the following reference signs:

[0025] 1, frame; 101, crossbeam; 102, mounting lug II; 2, cutterhead; 201, mounting lug I; 202, hanger; 3, hanger; 301, through hole; 4, rocker arm; 401, connecting portion; 5, guide rod; 6, flat washer; 7, R-shaped pin I; 8, pin shaft I; 9, shaft sleeve; 10, connecting rod I; 11, hanger shaft. DETAILED DESCRIPTION

[0026] Figure 1 a structural schematic diagram of the utility model, Figure 2 for Figure 1 a structural schematic diagram of another view, Figure 3 for Figure 4 Figure 2 a sectional view at A in Fig. Figure 5 for Figure 2 a sectional view at B in Fig. Figures 1-5 As shown in the figure: the cutterhead quick-release structure for lawn mower of the embodiment, comprising a mounting assembly connected to a rocker arm 4 swingable relative to a frame 1 of the lawn mower, the mounting assembly comprising a hanger 3, one end of the hanger 3 is hung on a free end of the rocker arm 4, the other end of the hanger 3 is used for hanging a cutterhead 2; the mounting assembly is connected to the rocker arm 4, the rocker arm 4 can be driven to swing relative to the frame 1 of the lawn mower (swing relative to the front-rear direction of the lawn mower), one end of the hanger 3 is hung on a free end of the rocker arm 4, the other end of the hanger 3 is used for hanging the cutterhead 2, so that the cutterhead 2 can be driven to move up and down to adjust the ground clearance of the cutterhead 2, the structure of the cutterhead 2 is the application of the prior art, here, no longer tedious.

[0027] The connecting portion 401 is provided on the rocker arm 4 for hanging the suspension member 3, and the suspension member 3 is provided with a through hole 301, so that the suspension member 3 can be removed from the connecting portion 401 through the through hole 301. The through hole 301 is similar to a through hole or a mounting hole, and the suspension member 3 is hung on the connecting portion 401 and is subjected to the gravity of the cutter head 2 and will not be separated from the connecting portion 401 during use. The through hole 301 is provided, and when the cutter head 2 needs to be disassembled, the cutter head 2 is lifted, so that the suspension member 3 moves upward (relative to the up-down direction of the lawn mower), and the suspension member 3 can be removed from the connecting portion 401 through the through hole 301. At this time, the suspension member 3 moves outward relative to the left-right (inside-outside) direction of the lawn mower, is separated from the connecting portion 401 from the through hole 301, and the suspension member 3 is removed, the connection between the cutter head 2 and the vehicle frame 1 is disconnected, the cutter head 2 is quickly disassembled, compared with the connection structure of the cutter head 2 in the prior art, the user can complete the manual disassembly of the cutter head 2, the overall installation structure greatly reduces the use of bolts, pins, shafts and locking pins and other structures, is beneficial to the later maintenance and use, and can greatly reduce the production cost.

[0028] In the embodiment, the through hole 301 is an arc-shaped through hole, the suspension member 3 includes a mounting portion, the mounting portion is provided with a mounting hole, the mounting hole can be hung on the connecting portion 401, and a middle portion of a side wall of the mounting hole is outwardly protruded to form the arc-shaped through hole. The shape of the through hole 301 is arc-shaped, the shape of the connecting portion 401 is adapted to the shape of the mounting hole, in the structure, the shape of the connecting portion 401 is a cylindrical structure, the connecting portion 401 is welded or fixedly connected to the rocker arm 4 in other manners, the middle portion of the side wall of the mounting hole is outwardly protruded to form the arc-shaped through hole, so that the suspension member 3 can be removed from the connecting portion 401 through the arc-shaped through hole. The connection mode of the suspension member 3 and the cutter head 2 is not limited, for example, a hanging ring can be arranged on the suspension member 3 to hang the cutter head 2, or the suspension member 3 is fixed to the cutter head 2 by a bolt.

[0029] In the embodiment, an outer wall of the connecting portion 401 is provided with a limiting groove, the mounting portion is hung on the limiting groove, and the diameter size of the arc-shaped through hole is greater than the diameter size of the connecting portion 401. The limiting groove is an annular groove. When the mounting portion is hung on the limiting groove, the mounting portion is limited in the left-right direction. The diameter size of the arc-shaped through hole is greater than the diameter size of the connecting portion 401, and the arc-shaped through hole is arranged at the middle position of the mounting portion, so that the normal use of the cutter head 2 when the cutter head 2 is hung on the vehicle frame 1 is not affected, the upward and downward jumping of the cutter head 2 when the cutter head 2 is subjected to a larger impact is avoided, the suspension member 3 is separated from the connecting portion 401, when the cutter head 2 needs to be disassembled, the cutter head 2 can be quickly removed through the arc-shaped through hole.

[0030] In the embodiment, the suspension member 3 is a ring chain, and the ring chain comprises a plurality of ring members, wherein a middle portion of a side wall of one of the ring members close to the connecting portion 401 is outwardly protruded to form the arc-shaped through hole. The ring chain is composed of a plurality of ring members, and the size of each ring member can be inconsistent or consistent. The middle portion of the side wall of one of the ring members close to the connecting portion 401 is outwardly protruded to form the arc-shaped through hole, so that the ring chain can be removed from the arc-shaped through hole. The lower portion of the ring chain is connected to the cutter head 2 through the ring members. When the cutter head 2 is impacted by external force and jumps, the ring chain can play a certain buffering role to slow down the vibration.

[0031] In the embodiment, the suspension member 3 is a ring chain, and the ring chain comprises a plurality of ring members, wherein a middle portion of a side wall of one of the ring members close to the connecting portion 401 is outwardly protruded to form the arc-shaped through hole. The ring chain is composed of a plurality of ring members, and the size of each ring member can be inconsistent or consistent. The middle portion of the side wall of one of the ring members close to the connecting portion 401 is outwardly protruded to form the arc-shaped through hole, so that the ring chain can be removed from the arc-shaped through hole. The lower portion of the ring chain is connected to the cutter head 2 through the ring members. When the cutter head 2 is impacted by external force and jumps, the ring chain can play a certain buffering role to slow down the vibration.

[0032] In the embodiment, the mounting assembly further comprises a guide rod 5, and the rear end and the front end of the guide rod 5 are connected to the cutter head 2 and the frame 1 through the fixing assembly I and the fixing assembly II respectively. By arranging the guide rod 5, and connecting the front end and the rear end of the guide rod 5 to the frame 1 and the cutter head 2 respectively, the cutter head 2 can be prevented from moving up and down and forward and backward (relative to the front-to-back and up-to-down directions of the lawn mower) during work, thereby affecting the mowing performance.

[0033] In the embodiment, the front end of the guide rod 5 is connected to the cross beam 101 of the frame 1 through the fixing assembly II. The cross beam 101 can be a front cross beam. Compared with connecting the front end of the guide rod 5 to other positions of the frame, the overall structure is compact, and assembly and installation are facilitated.

[0034] In the embodiment, the cutter head 2 is provided with a mounting lug I 201, the rear end of the guide rod 5 is provided with a connecting rod I 10, the fixing assembly I includes a pin shaft I 8, a shaft sleeve 9 and an R-shaped pin I 7, the shaft sleeve 9 is arranged on the inner wall of the connecting rod I 10, the pin shaft I 8 passes through the shaft sleeve 9 and installs the connecting rod I 10 in the mounting lug I 201 through the R-shaped pin I 7. The rear end of the guide rod 5 is provided with the connecting rod I 10 (the rear end is relative to the front and back directions of the lawn mower), the connecting rod I 10 can be arranged on the guide rod 5 by welding or integral molding, the mounting lug I 201 is in a U-shaped groove structure, and the mounting lug I 201 is provided with a through hole through which the pin shaft I 8 passes, the connecting rod I 10 is in a hollow rod structure, the pin shaft I 8 is provided with a fixing hole matched with the R-shaped pin I 7, and the pin shaft I 8 can be a bolt structure, in assembly, the shaft sleeve 9 is arranged on the inner circumference of the connecting rod I 10, then one end of the pin shaft I 8 passes through the fixing hole, the shaft sleeve 9 and is fixed to the mounting lug I 201 through the R-shaped pin I 7, a flat washer 6 is arranged between the R-shaped pin I 7 and the mounting lug I 201, the shaft sleeve 9 can have a certain damping effect, and the R-shaped pin I 7 is used to fix the connecting rod I 10, so that the guide rod 5 is convenient to disassemble.

[0035] The mounting lug II 102 is arranged on the cross beam 101 of the vehicle frame 1, the front end of the guide rod 5 is provided with a connecting rod II, the fixing assembly II includes a pin shaft II and an R-shaped pin II, the pin shaft II passes through the connecting rod II and installs the connecting rod II in the mounting lug II 102 through the R-shaped pin. The structure of the pin shaft I 8 and the pin shaft II is consistent, the front end and the rear end of the guide rod 5 are respectively matched with the cooperation structure of the fixing assembly II and the fixing assembly I, and the cooperation relationship between the front end of the guide rod 5 and the fixing assembly II is shown in Figure 5 , Figure 5 The cooperation relationship between the rear end of the guide rod 5 and the fixing assembly I is shown in Figure 5 , the front end of the guide rod 5 is provided with the connecting rod II (the front end is relative to the front and back directions of the lawn mower), the connecting rod II can be arranged on the guide rod 5 by welding or integral molding, the connecting rod I 10, the connecting rod II and the guide rod 5 form a I-shaped structure, the mounting lug II 102 is in a U-shaped groove structure, and the mounting lug II 102 is provided with a through hole through which the pin shaft II passes, the connecting rod II is in a hollow rod structure, the pin shaft II is located on the inner circumference of the connecting rod II, and the pin shaft II is provided with a fixing hole matched with the R-shaped pin II, in assembly, one end of the pin shaft II (which can be a bolt) passes through the fixing hole and the connecting rod II and is fixed to the mounting lug II 102 through the R-shaped pin II, a flat washer 6 is arranged between the R-shaped pin II and the mounting lug II 102, the R-shaped pin II is used to fix the connecting rod II, so that the guide rod 5 is convenient to disassemble, and the cutter head 2 is also convenient to disassemble quickly.

[0036] In the embodiment, the cutter head 2 is provided with a hanging seat 202, the hanging seat 202 is provided with a suspension shaft 11, the suspension shaft 11 is hung on the suspension member 3. The hanging seat 202 is a U-shaped open groove structure, the suspension shaft 11 can be a bolt structure, the hanging seat 202 is provided with a through hole for the suspension shaft 11 to pass through, in assembly, the lower end of the suspension member 3 is located in the hanging seat 202, the suspension shaft 11 passes through the suspension member 3 and is fixed on the hanging seat 202 through a nut, so as to hang the cutter head 2 on the suspension member 3, and the number of the hanging seat 202 can be set according to the use requirement.

[0037] The lawn mower of the embodiment comprises the quick disassembly structure of the cutter head 2 of the lawn mower. When the cutter head 2 is disassembled, the pin shaft at the rear end of the guide rod 5 is disassembled first, the connection between the guide rod 5 and the cutter head 2 is disconnected, then the front end of the cutter head 2 is lifted to a certain height, the suspension member 3 is taken off from the connecting portion 401 through the through hole 301 (since the diameter of the through hole 301 is greater than the diameter of the connecting portion 401, the suspension member 3 can be taken off), so as to realize the quick disassembly of the cutter head 2. Compared with the connecting structure of the cutter head 2 in the prior art, the user can complete the disassembly and assembly of the cutter head 2 without the aid of tools, the overall installation structure greatly reduces the use of bolts, clamping pins and locking pins and other structures, and is beneficial to the quick disassembly and assembly of the cutter head 2.

[0038] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A quick release deck configuration for a lawn vehicle, characterized by: The mounting assembly comprises a hanger, one end of the hanger is hung on a free end of a swing arm, and the other end of the hanger is used for hanging a cutter head; The swing arm is provided with a connecting portion for hanging the hanger, and the hanger is provided with a through hole so that the hanger can be removed from the connecting portion through the through hole.

2. The quick release deck configuration for a lawn vehicle of claim 1, wherein: The through hole is an arc-shaped through hole, the hanger comprises a mounting portion, the mounting portion is provided with a mounting hole, the mounting hole can be hung on the connecting portion, and a middle portion of a side wall of the mounting hole is outwardly protruded to form the arc-shaped through hole.

3. The deck quick release configuration for a lawn vehicle of claim 2, wherein: An outer wall of the connecting portion is provided with a limiting groove, the mounting portion is hung on the limiting groove, and a diameter size of the arc-shaped through hole is greater than a diameter size of the connecting portion.

4. The quick release deck configuration for a lawn vehicle of claim 2, wherein: The hanger is a ring chain, the ring chain comprises a plurality of ring members, and a middle portion of a side wall of one of the ring members close to the connecting portion is outwardly protruded to form the arc-shaped through hole.

5. The quick release deck configuration for a lawn vehicle of claim 2, wherein: The hanger or the mounting portion is a hanging ring, a middle portion of a side wall of the hanging ring is outwardly protruded to form the arc-shaped through hole.

6. The quick release deck configuration for a lawn vehicle of claim 1, wherein: The mounting assembly further comprises a guide rod, rear and front ends of the guide rod are connected to the cutter head and the frame through fixing assembly I and fixing assembly II respectively.

7. The deck quick release configuration for a lawn vehicle of claim 6, wherein: The front end of the guide rod is connected to a cross beam of the frame through the fixing assembly II.

8. The quick release deck configuration for a lawn vehicle of claim 7, wherein: The cutter head is provided with a mounting lug I, the rear end of the guide rod is provided with a connecting rod I, the fixing assembly I comprises a pin shaft I, a shaft sleeve and an R-shaped pin I, the shaft sleeve is arranged on an inner wall of the connecting rod I, the pin shaft I passes through the shaft sleeve and installs the connecting rod I in the mounting lug I through the R-shaped pin I; The cross beam of the frame is provided with a mounting lug II, the front end of the guide rod is provided with a connecting rod II, the fixing assembly II comprises a pin shaft II and an R-shaped pin II, the pin shaft II passes through the connecting rod II and installs the connecting rod II in the mounting lug II through the R-shaped pin.

9. The deck quick release configuration for a lawn vehicle of claim 1, wherein: The cutter head is provided with a hanging seat, the hanging seat is provided with a hanging shaft, and the hanging shaft is hung on the hanger.

10. A lawn vehicle characterized by: The cutter head quick release structure for the lawn mower comprises the cutter head quick release structure for the lawn mower.

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