Lifting cleaning frame of mower

Abstract

The utility model relates to a lifting cleaning frame of a mower. The device is characterized by comprising two groups of inclined parallelogram mechanisms which are arranged front and back, an upper short rod and a lower short rod which are opposite to each other on the parallelogram mechanisms are respectively composed of an upper connecting plate and a lower connecting plate, an upper long rod on the upper side extends downwards, a front supporting rod is fixed on the lower connecting plate, and the upper long rod and the front supporting rod form a herringbone supporting frame. The lower ends of the two front supporting rods are connected through a front cross beam, the lower ends of the two upper long rods are connected with a bottom cross beam, a lower cross beam is fixed between the two lower connecting plates, the lower cross beam is connected with two upward lugs, a hydraulic jack is hinged to the bottom cross beam, and the head of a piston rod of the hydraulic jack is hinged to the two lugs. Two upper connecting plates of the quadrilateral mechanism are connected through a sleeve, inserting rods are inserted into the two ends of the sleeve respectively, brackets for placing two rear wheels of the mower are fixed to the inserting rods, and idler wheels are installed on the two outer sides of the lower ends of the two upper long rods through U-shaped forks and wheel shafts so that the mower can conveniently move the lifting cleaning frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the frock of repair, maintenance of horticultural machinery, in particular to the lifting cleaning frame of lawn mower. BACKGROUND

[0002] Self-propelled mower is a kind of commonly used horticultural machinery, when the operation of the mower is completed, it is often necessary to clean the weeds or winding objects on the cutterhead of the mower, because the ground clearance of the mower is low, the space is small, and the light is poor, the cleaning work is very troublesome. Therefore, it is best to have a lifting mechanism for the mower to lift the rear end of the mower, so that the weeds can be easily cleaned, and the rear end of the mower needs to be lifted when checking and repairing the parts under the frame of the mower, and there is no ready-made lifting device at present. SUMMARY

[0003] The utility model aims at providing a kind of lifting cleaning frame of lawn mower, which is simple in structure, easy to use, low in manufacturing cost, strong in universality and good in safety.

[0004] In order to solve the above problems, the utility model is realized by the following technical scheme: its characteristics are that it includes two groups of parallelogram mechanisms placed obliquely and front and back, the opposite upper and lower short rods on the parallelogram mechanism are composed of upper connecting plates and lower connecting plates, the upper long rod above is extended downward and fixed with a front support rod on the lower connecting plate, the upper long rod and the front support rod form a "person" shaped support frame, the lower ends of the two front support rods are connected by a front cross beam, the lower ends of the two upper long rods are connected with a bottom cross beam, a lower cross beam is fixed between the two lower connecting plates, the lower cross beam is connected with two upward ears, the bottom cross beam is hinged with a hydraulic jack, the piston rod head of the hydraulic jack is hinged with the two ears, the two upper connecting plates of the parallelogram mechanism are connected by a sleeve, and a plug rod is inserted into each end of the sleeve, the plug rod is fixed with a bracket for placing the two rear wheels of the mower, and a roller is installed on the two outer sides of the lower ends of the two upper long rods through a U-shaped fork and an axle to facilitate the movement of the lifting cleaning frame of the mower.

[0005] The upper long rod is provided with a locking device for fixing the lower connecting plate after lifting the mower.

[0006] The locking device is fixed with a sleeve on the upper long rod, a telescopic locking rod is installed in the sleeve, a compression spring is installed at the rear end of the locking rod, a spanner is connected to the tail of the locking rod through a pin shaft, a lock hole is made in the lower connecting plate opposite to the sleeve hole, when the spanner is pulled up, the locking rod retreats and retracts into the sleeve, and the unlocking state is achieved, when the spanner is released, the locking rod extends, the locking tongue at the head of the locking rod extends out of the sleeve and inserts into the lock hole of the lower connecting plate, to prevent the rotation of the parallelogram mechanism, that is, the lifting cleaning frame of the mower is locked.

[0007] The front end of the lock tongue is bevel, and the lock hole is a half waist round hole matched with the front end of the lock tongue.

[0008] The front end of the pipe sleeve is fixed with a positioning plate, and the positioning plate is fixed with the inner side of the upper long rod.

[0009] The lock hole has 1-3.

[0010] The sleeve pipe and the inserting rod are provided with a plurality of positioning holes, and the positioning holes are provided with a bolt for adjusting the distance between the two brackets to adapt to the mower with different width wheelbase.

[0011] The lifting cleaning frame of the mower is manufactured according to the above scheme, when in use, the rear wheel of the mower is placed on the bracket, the pressing handle is pressed up and down, the piston rod is extended in the hydraulic jack, when the bracket is lifted to the desired height, the locking device locks the lifting cleaning frame, so that the bottom of the mower can be safely cleaned and maintained, and the use is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the front view of the lifting cleaning frame of the mower;

[0013] Figure 2 is the top view of the lifting cleaning frame of the mower;

[0014] Figure 3 is Figure 2 is the sectional view of A-A;

[0015] Figure 4 is the perspective view of the lifting cleaning frame of the mower;

[0016] Figure 5 is the exploded view of the lifting cleaning frame of the mower;

[0017] Figure 6 is the state diagram of the locking device when unlocking;

[0018] Figure 7 is the state diagram of the locking device when locking;

[0019] Figure 8 is the state diagram of the lifting cleaning frame of the mower when lowering;

[0020] Figure 9 is the state diagram of the lifting cleaning frame of the mower when lifting the rear wheel of the mower.

[0021] Wherein: 1. upper connecting plate; 2. lower connecting plate; 3. upper long rod; 4. front support rod; 5. front cross beam; 6. bottom cross beam; 7. lower cross beam; 8. ear piece; 9. hydraulic jack; 10. piston rod; 11. sleeve; 12. insertion rod; 13. rear wheel; 14. bracket; 15. U-shaped fork; 16. wheel axle; 17. roller; 18. locking device; 19. pipe sleeve; 20. positioning plate; 21. locking rod; 22. compression spring; 23. pin shaft; 24. spanner; 25. locking hole; 26. locking tongue; 27. positioning hole; 28. bolt; 29. pressurizing rod; 30. sleeve. DETAILED DESCRIPTION

[0022] The utility model will be further described in connection with the drawings and specific embodiments.

[0023] Figures 1 to 5 is the structure diagram of the lifting cleaning frame of the mower. As shown in the drawing, it comprises two groups of parallelogram mechanisms which are placed obliquely and in parallel and are placed front and back, the opposite upper and lower short rods of the parallelogram mechanisms are composed of upper connecting plates 1 and lower connecting plates 2 respectively, the upper long rods 3 on the upper side are extended downward and the front support rods 4 are fixed on the lower connecting plates 2, the upper long rods 3 and the front support rods 4 form the support frame of the "human" shape as shown in Figure 1 , the lower ends of the two front support rods 4 are connected through the front cross beam 5, the lower ends of the two upper long rods 3 are connected with the bottom cross beam 6, the lower cross beam 7 is fixed between the two lower connecting plates 2, the lower cross beam 7 is connected with the two ear pieces 8 which are upward, the hydraulic jacks 9 are hinged on the bottom cross beam 6, the piston rods 10 of the hydraulic jacks 9 are hinged with the two ear pieces 8, the two upper connecting plates 1 of the parallelogram mechanisms are connected through the sleeve 11, the insertion rods 12 are inserted into the two ends of the sleeve 11 respectively, the brackets 14 for placing the two rear wheels 13 of the mower are fixed on the insertion rods 12, the rollers 17 are installed on the two outer sides of the lower ends of the two upper long rods 3 through the U-shaped forks 15 and the wheel axles 16, so as to facilitate the movement of the lifting cleaning frame of the mower. The upper long rods 3 are installed with the locking devices 18 which are used for fixing the lower connecting plates after the lifting cleaning frame lifts the mower. The locking device 18 is that a pipe sleeve 19 is fixed on the upper long rod 3, the front end of the pipe sleeve 19 is fixed with the positioning plate 20 which is fixed with the inner side of the upper long rod 3. The pipe sleeve 19 is installed with the locking rod 21 which can be extended and retracted, the rear end of the locking rod 21 is installed with the compression spring 22, the tail of the locking rod 21 is connected with the spanner 24 through the pin shaft 23, the lower connecting plate 2 which is opposite to the hole of the pipe sleeve 19 is provided with the locking hole 25, when the spanner 24 is pulled up, the locking rod 21 retreats, the locking rod 21 retracts into the pipe sleeve 19, and it is in the unlocking state as shown in Figure 6 , when the spanner 24 is put down, the locking rod 21 extends, the locking tongue 26 of the head of the locking rod 21 extends out of the pipe sleeve 19 and inserts into the locking hole 25 of the lower connecting plate 2 as shown in Figure 7The lock hole has three holes, which prevents the rotation of the parallelogram mechanism, i.e. the mower lifting cleaning frame is locked. The front end of the lock tongue 26 is beveled, and the lock hole 25 is a half waist round hole matched with the front end of the lock tongue. Thus, the direction of the beveled surface on the lock rod 21 and the lock tongue 26 can be changed by rotating the wrench 24, so that the mower lifting cleaning frame can be raised or lowered without operating the wrench 24. The sleeve 11 and the insertion rod 12 are provided with a plurality of positioning holes 27, and the insertion pin 28 is arranged in the positioning hole 27, which is used to adjust the distance between the two brackets 14 to adapt to the mower with different wheelbase widths.

[0024] In use, the piston rod 10 of the hydraulic jack 9 is first shortened, the mower lifting cleaning frame is lowered, the bracket 14 is attached to the ground, and the mower is driven forward as shown in Fig. 1. Figure 8 As shown, the mower is reversed, the rear wheel 13 is placed on the bracket 14, the pressing rod 29 is inserted into the sleeve 30 of the hydraulic jack pump oil cylinder, and the pressing rod 29 is pressed up and down. While the piston rod 10 is gradually extended, the front end of the mower lifting cleaning frame is lifted as shown in Fig. 2. Figure 9 As shown, when the bracket 14 is lifted to the desired height, the lock tongue 26 of the locking device 18 is inserted into the lock hole 25 as shown in Fig. 3. Figure 7 The lifting cleaning frame is locked, and the pressing rod 29 is removed, so that the bottom of the mower can be safely cleaned and maintained.

Claims

1. A lawnmower lift cleaning frame characterised in that It comprises two sets of inclined and front and back parallel quadrilateral mechanisms, the opposite upper and lower short rods of the quadrilateral mechanisms are composed of upper and lower connecting plates, the upper long rod is extended downward and fixed with a front support rod on the lower connecting plate, the upper long rod and the front support rod form a "human" shaped support frame, the lower ends of the two front support rods are connected through a front cross beam, the lower ends of the two upper long rods are connected with a bottom cross beam, the lower cross beam is fixed between the two lower connecting plates, the lower cross beam is connected with two upward ears, the hydraulic jack is hinged on the bottom cross beam, the piston rod head of the hydraulic jack is hinged with the two ears, the two upper connecting plates of the quadrilateral mechanism are connected through a sleeve, the two ends of the sleeve are inserted with a plug rod, the plug rod is fixed with a bracket for placing the two rear wheels of the mower, the rollers are installed on the two outer sides of the lower ends of the two upper long rods through U-shaped forks and axles to facilitate the movement of the mower lifting cleaning frame.

2. The mower lift-and-clean frame of claim 1, wherein A plurality of positioning holes are formed on the sleeve and the plug rod, and a bolt is arranged in the positioning hole, which is used for adjusting the distance between the two brackets to adapt to mowers with different wheelbase widths.

3. The lawn mower lift and clean frame of claim 1, wherein A locking device is installed on the upper long rod to fix the lower connecting plate after the lifting cleaning frame lifts the mower.

4. The mower lift cleanout shelf of claim 3, wherein The locking device is fixed on the upper long rod with a pipe sleeve, the pipe sleeve is installed with an extendable locking rod, the rear end of the locking rod is installed with a compression spring, the tail of the locking rod is connected with a spanner through a pin shaft, the lower connecting plate opposite to the pipe sleeve hole is provided with a lock hole, when the spanner is pulled up, the locking rod retreats and is retracted into the pipe sleeve, and the lifting cleaning frame is unlocked, when the spanner is released, the locking rod is extended, the locking tongue at the head of the locking rod is extended out of the pipe sleeve and inserted into the lock hole of the lower connecting plate, the rotation of the quadrilateral mechanism is prevented, and the mower lifting cleaning frame is locked.

5. The mower lift and clean frame of claim 4 wherein The front end of the locking tongue is a bevel, and the lock hole is a half waist round hole matched with the front end of the locking tongue.

6. The lawn mower lift and clean frame of claim 4, wherein The front end of the pipe sleeve is fixed with a positioning plate, and the positioning plate is fixed with the inner side of the upper long rod.

7. The lawn mower lift and clean frame of claim 4, wherein The lock hole has 1-3.

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