Automatic excavating and forming machine for garden tree planting pits

Abstract

The utility model discloses an automatic excavating and forming machine for garden tree planting pits, which relates to the field of garden instruments, and adopts the technical scheme that the automatic excavating and forming machine comprises a cart with wheels, an upright post fixedly arranged on the cart, two swing arms rotationally arranged on the upright post, a mounting frame rotationally arranged at the movable ends of the swing arms, and an engine fixedly arranged on the mounting frame and used for driving a drill bit, a drill bit is detachably arranged on an output shaft of the engine; a supporting piece is rotationally arranged in the middle of the upper swing arm, and a driving mechanism used for driving the swing arms to swing is further arranged at the upper end of the stand column. The beneficial effects of the utility model are that the machine body is independent and small, is provided with wheels, can freely shuttle in narrow aisles of gardens, corners of flower beds and areas with compact plant spacing, and is high in flexibility; and an operator keeps a safe distance from the drill bit rotating at a high speed, so that the potential safety hazard that the operator is in close contact with dangerous parts when the hand-held earth boring machine works is thoroughly eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of garden instruments, in particular to a garden tree planting pit automatic digging and forming machine. BACKGROUND

[0002] With the rapid advancement of urbanization, the garden landscape construction becomes more and more indispensable to the city development, and the planting quantity of garden trees increases greatly, and the digging of planting pit is the most critical basic work before the tree planting.

[0003] The existing pit digger can be divided into three categories: front-mounted pit digger, rear-mounted pit digger and hand-held pit digger. The front-mounted pit digger and the rear-mounted pit digger generally use a tractor or an excavator as a power source and a support platform, and the drill bit is arranged at the front or rear of the tractor or the excavator. The power and the off-road capability are strong, but the equipment needs to be assembled with the tractor or the excavator, and the size is large, which is not suitable for operation in a relatively narrow space. The hand-held pit digger needs to be held by the operator for operation. During the digging process, the arm strength and body balance of the operator have a great influence on the stability of the machine. Due to the limitation of human strength, long-time operation can easily cause arm fatigue, so that the machine shakes during digging. At the same time, the working parts (such as the high-speed rotating drill bit) of the hand-held pit digger are near the operator. During the operation process, the operator needs to contact these dangerous parts at close range, and the safety is low. SUMMARY

[0004] In view of the above technical problems, the utility model provides a garden tree planting pit automatic digging and forming machine.

[0005] The technical scheme is that a trolley with wheels is provided, a stand is fixedly arranged on the trolley, two swing arms are rotatably arranged on the stand, a mounting frame is rotatably arranged at the movable end of the swing arm, an engine for driving a drill bit is fixedly arranged on the mounting frame, and the drill bit is detachably arranged on the output shaft of the engine.

[0006] The middle part of the swing arm located above is rotatably arranged with a support, the support comprises an inner rod rotatably arranged on the swing arm, an outer rod is sleeved on the outer side of the inner rod, and the lower end of the outer rod is coaxial with the rotation shaft of the swing arm located below.

[0007] The outer side of the inner rod is sleeved with a spring, and the two ends of the spring are fixedly connected with the inner rod and the end part away from the outer rod, respectively.

[0008] The upper end part of the stand is further provided with a driving mechanism for driving the swing of the swing arm.

[0009] Preferably, the driving mechanism comprises a gear wheel arranged at the upper end of the stand column, one side of the gear wheel engages with a rack, and one end of the rack is rotatably connected with the middle part of the swing arm located below.

[0010] Preferably, two ratchet wheels are coaxially arranged on the two sides of the gear wheel respectively.

[0011] A wrench is further rotatably arranged on the gear carrier, the rotation axis of the wrench is coaxial with the rotation axis of the gear wheel, two pawls are arranged on the wrench, and each pawl engages with an adjacent ratchet wheel.

[0012] A torsion spring is arranged between each pawl and the wrench.

[0013] Preferably, a pull handle is further arranged on the wrench, and the pull handle is connected with the movable end of each pawl through a pull line.

[0014] Preferably, a handlebar is further fixedly arranged at the upper end of the stand column.

[0015] The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the machine body is independent, small and exquisite, and is provided with wheels, so that the machine body can freely shuttle in narrow passages in gardens, corners of flower beds and regions with compact plant spacing, and has high flexibility; the operator is kept at a safe distance from the high-speed rotating drill bit, so that the safety hazard of the operator contacting the dangerous part at close range during operation of the hand-held hole digging machine is completely eliminated, the probability of personal injury accidents caused by clothes being caught and the drill bit being touched by mistake is reduced, and the safety during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a schematic diagram of the overall structure of the embodiment of the utility model.

[0017] Fig. 2 The figure is a schematic diagram of the support member of the embodiment of the utility model.

[0018] Fig. 3 The figure is a schematic diagram of the driving mechanism of the embodiment of the utility model.

[0019] Fig. 4 The figure is a schematic diagram of the wrench, ratchet wheel and ratchet structure of the embodiment of the utility model.

[0020] In the figure, the reference signs are as follows: 1, trolley; 2, stand column; 3, swing arm; 4, mounting bracket; 5, engine; 6, drill bit; 7, support member; 8, inner rod; 9, outer rod; 10, spring; 11, driving mechanism; 12, gear wheel; 13, rack; 14, ratchet wheel; 15, wrench; 16, pawl; 17, pull handle; 18, handlebar. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. Of course, the specific examples described herein are only used to explain the utility model and not used to limit the utility model.

[0022] It should be noted that the examples in the utility model creation and the features in the examples can be combined with each other without conflict.

[0023] In the description of the utility model creation, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model creation and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model creation. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model creation, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the utility model creation, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model creation can be understood according to the specific circumstances.

[0025] Example 1

[0026] Referring to Figs. 1 to 4 The utility model provides a kind of automatic digging forming machine of garden tree planting pit, including trolley 1 with wheel, trolley 1 is fixedly arranged stand 2, two swing arms 3 are rotationally arranged on stand 2, swing arm 3 is rotationally arranged mounting bracket 4 in movable end, engine 5 of driving drill bit 6 is fixedly arranged on mounting bracket 4, drill bit 6 is detachably arranged on the output shaft of engine 5;

[0027] According to the specific requirements of this time digging planting pit, such as the diameter of pit, depth etc., select appropriate drill bit 6, and install it on the output shaft of engine 5;

[0028] The middle part of the upper swing arm 3 is rotationally provided with a support 7, the support 7 comprises an inner rod 8 rotationally provided on the swing arm 3, the outer side of the inner rod 8 is sleeved with an outer rod 9, the lower end of the outer rod 9 is coaxial with the rotation shaft of the lower swing arm 3;

[0029] The outer side of the inner rod 8 is sleeved with a spring 10, the two ends of the spring 10 are fixedly connected with the opposite end of the inner rod 8 and the outer rod 9 respectively;

[0030] When the trolley 1 is pushed to the designated area where the planting hole needs to be dug, the user only needs to control the downward movement of the engine 5 and the drill bit 6, which is more labor-saving;

[0031] After the hole is dug, the user releases the force applied to the swing arm 3, the swing arm 3 is reset under the action of the spring 10, so that the drill bit 6 can quickly separate from the formed planting hole, and the drill bit 6 moves above the ground, which facilitates the subsequent transfer operation of the equipment, and the setter can easily push the trolley 1 to the next place where digging is needed;

[0032] The upper end of the stand 2 is also provided with a driving mechanism 11 for driving the swing arm 3 to swing.

[0033] The driving mechanism 11 comprises a gear 12 rotationally provided on the upper end of the stand 2, one side of the gear 12 engages with a rack 13, one end of the rack 13 is rotationally connected with the middle part of the lower swing arm 3.

[0034] A U-shaped bracket is also rotationally provided on the gear 12, the open end of the bracket is coaxially rotationally connected with the gear 12, and the closed end of the bracket is slidingly connected with the rack 13.

[0035] A ratchet wheel 16 is coaxially fixedly arranged on each side of the gear 12;

[0036] A wrench is also rotationally provided on the gear 12, the rotation shaft of the wrench is coaxial with the rotation shaft of the gear 12, two pawls are arranged on the wrench, and each pawl engages with an adjacent ratchet wheel 16;

[0037] A torsion spring is arranged between each pawl and the wrench.

[0038] When the hole digging operation is needed, the user pulls the wrench, the wrench drives the ratchet wheel 16 to rotate under the action of the pawl when the wrench rotates, so that the gear 12 can rotate, the gear 12 drives the rack 13 to move when the gear 12 rotates, the rack 13 drives the swing arm 3 to rotate when the rack 13 moves, and the rotating drill bit 6 contacts the ground and cuts into the soil.

[0039] The driving mechanism 11 keeps the operator at a safe distance from the high-speed rotating drill bit, completely eliminates the safety hazard of the operator contacting the dangerous part at close range when the hand-held hole digger is working, reduces the probability of personal injury accidents caused by clothes being caught and the drill bit being touched by mistake, and improves the safety during use

[0040] The wrench is further provided with a pull handle 17, and the pull handle 17 is connected with the movable ends of the two pawls through pull wires respectively.

[0041] After the hole is dug, the user pulls the pull handle 17, so that the movable ends of the pawls are separated from the ratchet wheel 16, the swing arm 3 is reset under the action of the spring 10, the drill bit 6 can be quickly separated from the formed planting hole, the drill bit 6 is moved to above the ground, and subsequent transfer operation of the equipment is facilitated.

[0042] The upper end of the stand 2 is further fixedly provided with a handlebar 18.

[0043] When the utility model is used, the trolley 1 is pushed to a specified area where a planting hole needs to be dug, the user pulls the wrench, the wrench is rotated, the ratchet wheel 16 is driven to rotate under the action of the pawls, the gear 12 can rotate, the gear 12 is rotated, the rack 13 is driven to move, the swing arm 3 is driven to rotate, the rotating drill bit 6 contacts the ground and cuts into the soil under the action of the swing arm 3.

[0044] After the hole is dug, the user pulls the pull handle 17, so that the movable ends of the pawls are separated from the ratchet wheel 16, the swing arm 3 is reset under the action of the spring 10, the drill bit 6 can be quickly separated from the formed planting hole, the drill bit 6 is moved to above the ground, and subsequent transfer operation of the equipment is facilitated.

[0045] The above only describes preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A garden tree planting hole automatic digging and forming machine, characterized in that, The utility model provides a kind of drilling machine, including trolley (1) with wheel, the trolley (1) is fixedly provided with stand (2), two swing arms (3) are rotatably provided on the stand (2), the movable end of the swing arm (3) is rotatably provided with mounting bracket (4), the mounting bracket (4) is fixedly provided with the engine (5) of driving drill bit (6), the output shaft of the engine (5) is detachably provided with drill bit (6); The middle part of the swing arm (3) located above is rotatably provided with support (7), the support (7) includes inner rod (8) rotatably provided on the swing arm (3), the outer side of the inner rod (8) is sleeved with outer rod (9), and the lower end of the outer rod (9) is coaxial with the rotation shaft of the swing arm (3) located below; The outer side of the inner rod (8) is sleeved with spring (10), and the two ends of the spring (10) are fixedly connected with the end of the inner rod (8) and the outer rod (9) away from each other, respectively. The upper end of the stand (2) is also provided with driving mechanism (11) for driving the swing arm (3) to swing.

2. The automatic garden tree planting pit digging and forming machine according to claim 1, characterized in that, The driving mechanism (11) includes gear (12) rotatably provided on the upper end of the stand (2), one side of the gear (12) engages with rack (13), and one end of the rack (13) is rotatably connected with the middle part of the swing arm (3) located below.

3. The automatic garden tree planting pit digging and forming machine according to claim 2, characterized in that, The two sides of the gear (12) are coaxially fixedly provided with one ratchet wheel (16), respectively. The wrench is also rotatably provided on the gear (12) frame, the rotation shaft of the wrench is coaxial with the rotation shaft of the gear (12), two pawls are provided on the wrench, and each pawl engages with an adjacent ratchet wheel (16), respectively. Torsional spring is provided between each pawl and the wrench.

4. The automatic garden tree planting pit digging and forming machine according to claim 3, characterized in that, The wrench is also provided with pull handle (17), and the movable end of the two pawls is connected by pull wire, respectively.

5. The automatic garden tree planting pit digging and forming machine according to claim 1, characterized in that, The upper end of the stand (2) is also fixedly provided with handlebar (18).

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