CN211931268U

CN211931268U - Pit digging machine

Info

Publication number: CN211931268U
Application number: CN202020425835.2U
Authority: CN
Inventors: 周长春
Original assignee: Beijing Brilliant Beauties Technology Co ltd
Current assignee: Beijing Brilliant Beauties Technology Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-11-17
Anticipated expiration: 2030-03-28

Abstract

The utility model discloses a pit digging machine, which relates to the technical field of garden greening, and the technical key points of the utility model comprise a motor, a mounting seat is arranged below the motor, the mounting seat is provided with two handles which are arranged oppositely, a transmission rod is arranged below the mounting seat, the transmission rod and the motor rotate synchronously, the transmission rod comprises an upper transmission rod, a lower transmission rod and a connecting assembly, the connecting assembly comprises a first plug-in column arranged on the upper transmission rod and a second plug-in column arranged on the lower transmission rod, the upper transmission rod is provided with a first connecting hole, the lower transmission rod is provided with a second connecting hole, when the first plug-in column is plugged in the second connecting hole, the end part of the upper transmission rod is abutted against the end part of the lower transmission rod; the superposition position of the upper transmission rod and the lower transmission rod is provided with a limiting part for preventing relative displacement between the upper transmission rod and the lower transmission rod, and a drill bit is arranged outside the lower transmission rod. The utility model has the advantages of be convenient for change the drill bit.

Description

Pit digging machine

Technical Field

The utility model relates to an afforestation technical field, in particular to earth boring machine.

Background

The pit digging machine, namely the spiral drilling machine, mainly comprises a driving head and a drill bit assembly, has the advantages of simple structure, stronger drilling capability, low production and application cost and high flexibility, and has wide application in the field of landscaping.

The prior patent document with the publication number of CN208509559U discloses a portable earth boring machine of a convenient type, which comprises a power box, a reduction gear box is arranged at the bottom of the power box, the power box is fixedly connected with the reduction gear box through thread screwing, the bottom of the reduction gear box is provided with a gear box, the reduction gear box is fixedly connected with the gearbox through a nut, a handle is arranged on one side of the gearbox, a drill rod is arranged at the bottom of the gearbox, a drill bit is arranged on the outer surface of the drill rod, the drill rod is fixedly connected with the drill bit in a welding mode, the top end of the handle is provided with a shock absorption pad, a cushioning spring is arranged between the handle and the cushioning pad, the bottom side of the handle is provided with dustproof cloth, and the handle is fixedly connected with the dustproof cloth through adhesive solution adhesion, and a supporting spring is arranged on the inner side of the dustproof cloth.

Although the convenient portable earth boring machine is provided with the dustproof cloth, the earth boring machine can be prevented from hitting dust or mud onto the body of a user in the earth boring process.

However, the earth boring machine may contact with sand and stone in the ground during use, and the drill bit is easily worn or damaged due to long-term contact with the ground, so that the drill bit cannot be detached for maintenance or replacement due to the fixed connection of the drill rod and the gearbox of the portable earth boring machine.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a pit digging machine, it has the advantage of being convenient for change the drill bit.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a pit digging machine comprises a motor, wherein a mounting seat is arranged below the motor, the mounting seat is provided with two handles, the two handles are arranged oppositely, a transmission rod is arranged below the mounting seat, the transmission rod and the motor rotate synchronously, the transmission rod comprises an upper transmission rod and a lower transmission rod, the upper transmission rod and the lower transmission rod are fixedly connected through a connection assembly, the connection assembly comprises a first plug-in column arranged on the upper transmission rod and a second plug-in column arranged on the lower transmission rod, the upper transmission rod is provided with a first connection hole for the second plug-in column to insert into, the lower transmission rod is provided with a second connection hole for the first plug-in column to insert into, when the first plug-in column is plugged into the second connection hole, the second plug-in column is plugged into the first connection hole, and the end part of the upper transmission rod is abutted against the end part of the lower transmission rod; the coincidence department of going up transfer line and lower transfer line is provided with the locating part that prevents relative displacement between the two, the outside of lower transfer line is provided with the drill bit.

By adopting the technical scheme, when the drill bit needs to be replaced, the position limitation of the limiting piece on the position between the upper transmission rod and the lower transmission rod is removed, the second inserting column is moved to one side far away from the first connecting hole, and the second inserting column drives the lower transmission rod and the drill bit to be far away from the upper transmission rod, so that the drill bit is detached; the second of new drill bit is pegged graft the post and is extended to the one side that is close to first connecting hole, makes the second peg graft the first connecting hole that the post was inserted, and first peg graft post is pegged graft in the second connecting hole, goes up drive rod tip and lower drive rod tip butt, realizes going up the position between drive rod and the lower drive rod through the locating part and prescribes a limit to, and then realizes the change to the drill bit. The method comprises the following steps: the upper transmission rod and the first splicing column are provided with a first connecting column, the lower transmission rod and the second splicing column are provided with a second connecting column, the first connecting column and the second connecting column are arranged in a central symmetry mode by taking the axis of the transmission rod as a center, when the first splicing column is spliced in the second connecting hole, the second splicing column is spliced in the first connecting hole, the first connecting column is abutted against the second connecting column, and the superposition position of the first connecting column and the second connecting column and the axis of the transmission rod are located in the same horizontal plane.

The utility model discloses further set up to: the upper transmission rod and the first splicing column are provided with a first connecting column, the lower transmission rod and the second splicing column are provided with a second connecting column, the first connecting column and the second connecting column are arranged in a central symmetry mode by taking the axis of the transmission rod as a center, when the first splicing column is spliced in the second connecting hole, the second splicing column is spliced in the first connecting hole, the first connecting column is abutted against the second connecting column, and the superposition position of the first connecting column and the second connecting column and the axis of the transmission rod are located in the same horizontal plane.

Through adopting above-mentioned technical scheme, through setting up area of contact between first spliced pole and the second spliced pole increase upper transfer pole and the lower transmission pole, improve the joint strength between upper transfer pole and the lower transmission pole.

The utility model discloses further set up to: first spacing half-groove has been seted up in one side that is close to the second spliced pole to first spliced pole, the second spliced pole is provided with the spacing half-groove of second in one side that is close to first spliced pole, and when first spliced pole and second spliced pole were laminated each other, first spacing half-groove and the spacing half-groove of second enclosed into the spacing groove with locating part looks adaptation.

Through adopting above-mentioned technical scheme, peg graft in the inside of spacing groove with the locating part, realize being connected between locating part and first spliced pole and the second spliced pole, be convenient for realize going up the position between transfer chain and the lower drive lever and injecing.

The utility model discloses further set up to: two lateral walls of the first spacing half-groove are all set as first inclined planes, the inclination directions of the two first inclined planes are opposite, the two first inclined planes are intersected on one side away from the opening of the first spacing groove, the cross section of the first spacing half-groove is in a V-shaped arrangement, and the opening end of the V-shaped arrangement faces the second spacing half-groove.

Through adopting above-mentioned technical scheme, improve the stability of locating part in spacing inslot portion.

The utility model discloses further set up to: the contact end of the first connecting column and the contact end of the second connecting column are arranged to be a first straight surface, the second connecting column is provided with a second straight surface, and the first straight surface and the second straight surface are parallel and opposite to each other.

Through adopting above-mentioned technical scheme, through first straight face and the straight laminating of second each other, area of contact between first spliced pole and the second spliced pole is increased, improves the connection stability between first spliced pole and the second spliced pole.

The utility model discloses further set up to: the transfer line is provided with the fixed establishment that is used for preventing the locating part from deviating from.

Through adopting above-mentioned technical scheme, through setting up fixed establishment, make the locating part spacing in the spacing inslot, keep being connected between first spliced pole and the second spliced pole.

The utility model discloses further set up to: the fixing mechanism comprises a first fixed half ring and a second fixed half ring, the first fixed half ring and the second fixed half ring are connected end to form a ring shape matched with the transmission rod, fixing plates are arranged on two sides of the first fixed half ring, a yielding groove matched with the fixing plates is formed in the second fixed half ring, the fixing plates are inserted into the yielding groove, and the fixing plates and the yielding groove are connected in a detachable mode through fixing components.

Through adopting above-mentioned technical scheme, peg graft the fixed plate in the inside of groove of stepping down, connecting the fixed plate and stepping down the groove through fixed subassembly, realize the fixed connection between first fixed semi-ring and the second fixed semi-ring, make first fixed semi-ring and second fixed semi-ring cover locate the outside of transfer line, realize the position fixation to the locating part, prevent that the locating part from deviating from the spacing groove.

The utility model discloses further set up to: the fixed subassembly is the multiunit, and the multiunit fixed subassembly sets up along the length direction interval of fixed plate.

Through adopting above-mentioned technical scheme, strengthen the joint strength between first stationary half ring and the second stationary half ring.

The utility model discloses further set up to: the fixing assembly comprises a limiting column, the bottom wall of the abdicating groove is provided with a mounting groove, a limiting hole is formed at the superposition position of the fixing plate and the mounting groove, one end of the limiting column is arranged in the mounting groove, the other end of the limiting column penetrates through the limiting hole, and a blocking piece for preventing the limiting column from being separated is arranged on the limiting column in the mounting groove; the inside of mounting groove sets up compression spring, compression spring's one end and the diapire fixed connection, the other end and the separation blade fixed connection of mounting groove.

Through adopting above-mentioned technical scheme, remove the in-process of fixed plate, the surface action of fixed plate is in spacing post, spacing post drives separation blade extrusion compression spring, compression spring is in the unnatural state, peg graft completely when the inside in the groove of stepping down when the fixed plate, the opening of spacing hole and mounting groove is corresponding, compression spring replies the natural state, spacing hole is worn to locate by the tip of spacing post, the realization is fixed the position of fixed plate to realize being connected between first fixed semi-ring and the second fixed semi-ring.

The utility model discloses further set up to: the transmission rod is provided with two positioning rings, the two positioning rings are arranged at intervals along the length direction of the transmission rod, and the fixing mechanism is limited between the two positioning rings.

Through adopting above-mentioned technical scheme, spacing fixed establishment between two holding rings, prevent to use this novel in-process of service function, fixed establishment deviates from the transfer line, is convenient for keep the limiting displacement of fixed establishment to the locating part.

To sum up, the utility model discloses following beneficial effect has: the connection between the upper transmission rod and the lower transmission rod is released through the limiting piece, the second inserting column is moved to one side far away from the first connecting hole, and the second inserting column drives the lower transmission rod and the drill bit to be far away from the upper transmission rod, so that the drill bit is detached; when the first inserting column is inserted into the second connecting hole, the end part of the upper transmission rod is abutted against the end part of the lower transmission rod, and the position between the upper transmission rod and the lower transmission rod is limited by the limiting part, so that the drill bit is replaced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a first top view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a second top view of FIG. 1;

FIG. 5 is a sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view of section C of FIG. 5;

fig. 7 is a schematic view illustrating a connection relationship between the first stationary half ring, the second stationary half ring and the fixing member according to the embodiment of the present invention.

In the figure, 1, a motor; 2. a mounting seat; 3. a handle; 4. a transmission rod; 41. a transmission rod is arranged; 42. a lower transmission rod; 5. a drill bit; 6. a connecting assembly; 61. a first plug-in column; 62. a second plug column; 63. a limiting member; 7. a first connecting column; 8. a second connecting column; 91. a first stationary half ring; 911. a fixing plate; 912. a limiting hole; 92. a second stationary half ring; 921. a yielding groove; 922. mounting grooves; 93. a fixing assembly; 931. a limiting column; 932. a compression spring; 10. a baffle plate; 20. a retaining ring.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a pit digging machine, including motor 1, motor 1's below is provided with mount pad 2, and mount pad 2 is the level setting. Handle 3 is installed to mount pad 2, and handle 3 is two, and two handle 3 sets up relatively.

Referring to fig. 2 and 3, a transmission rod 4 is disposed at the center of the lower surface of the mounting base 2, and the transmission rod 4 and the motor 1 rotate synchronously. The transfer line 4 includes last transfer line 41 and lower transfer line 42, and the mount pad 2 has seted up the shaft hole in its center department, and the shaft hole downwardly extending is worn to locate by the output of motor 1, goes up the output key-type connection of the upper end of transfer line 41 and motor 1. The drill bit 5 is fixedly mounted on the outer portion of the lower transmission rod 42.

The upper transmission rod 41 and the lower transmission rod 42 are fixedly connected through a connecting assembly 6. The connecting assembly 6 includes a first inserting column 61 disposed on the upper transmission rod 41, a second inserting column 62 disposed on the lower transmission rod 42, and a limiting member 63 for preventing relative displacement between the upper transmission rod 41 and the lower transmission rod 42.

The lower end face of the upper transmission rod 41 is provided with a first connecting hole for inserting the second inserting column 62, and the lower transmission rod 42 is provided with a second connecting hole for inserting the first inserting column 61. A first connecting column 7 extends from one side of the upper connecting rod 41 close to the first plug-in column 61, and one end of the first connecting column 7 far away from the upper connecting rod 41 is fixedly connected with the first plug-in column 61; the lower driving rod 42 is provided with a second connecting column 8 extending from one side close to the second plug column 62, one end of the second connecting column 8 far away from the lower driving rod 42 is fixedly connected with the second plug column 62, and the first connecting column 7 and the second connecting column 8 are symmetrically arranged by taking the axis of the driving rod 4 as the center.

One side of the first connecting column 7 close to the second connecting column 8 is provided with a first straight surface, the second connecting column 8 is provided with a second straight surface, and the first straight surface and the second straight surface are parallel and are arranged oppositely. When the first inserting column 61 is inserted into the second connecting hole and the second inserting column 62 is inserted into the first connecting hole, the first straight surface and the second straight surface are attached to each other, and the overlapping position of the first straight surface and the second straight surface and the axis of the transmission rod 4 are in the same plane.

A first limiting half groove is formed in one side, close to the second connecting column 8, of the first connecting column 7, transversely penetrates through the first connecting column 7, two side walls of the first limiting half groove are respectively provided with a first inclined surface, the inclination directions of the two first inclined surfaces are opposite, the two first inclined surfaces intersect in a straight line at one side far away from the opening of the first limiting groove, the section of the first limiting half groove is arranged in a V shape, and the opening end of the V shape faces the second connecting column 8; the spacing half groove of second has been seted up to second spliced pole 8, the spacing half groove of second transversely runs through in second spliced pole 8, two lateral walls in the spacing half groove of second all set up to the second inclined plane, the incline direction on two second inclined planes is opposite, two second inclined planes intersect in a straight line in keeping away from second spacing groove open-ended one side, the cross-section in the spacing half groove of second is the V-arrangement setting, the V-arrangement open end is towards first spliced pole 7, when first straight face and second straight face laminating, first spacing half groove and the spacing half groove of second enclose into the spacing groove with locating part 63 looks adaptation, the cross-section in spacing groove is the rhombus setting.

Referring to fig. 4 and 5, a fixing mechanism for preventing the stopper 63 from coming off is provided at a connection point of the driving lever 41 and the lower driving lever 42. The fixing mechanism comprises a first stationary half ring 91 and a second stationary half ring 92, the first stationary half ring 91 and the second stationary half ring 92 are connected end to form a ring shape matched with the transmission rod 4, and the limiting member 63 and the axis of the ring shape are vertically arranged.

Referring to fig. 5 and 6, the fixing plate 911 extends from both sides of the first stationary half ring 91, the second stationary half ring 92 defines a yielding groove 921 adapted to the fixing plate 911, and when the fixing plate 911 is inserted into the yielding groove 921, the outer circumferential wall of the first stationary half ring 91 and the outer circumferential wall of the second stationary half ring 92 are located on the same plane. The fixing plate 911 and the position-avoiding groove 921 are detachably connected by a fixing component 93. The fixing assemblies 93 are provided in a plurality of groups, and the plurality of groups of fixing assemblies 93 are arranged at intervals along the length direction of the fixing plate 911.

Referring to fig. 6 and 7, the fixing assembly 93 includes a limiting column 931, a mounting groove 922 is formed in a bottom wall of the abdicating groove 921, a limiting hole 912 is formed at a position where the fixing plate 911 and the mounting groove 922 overlap, one end of the limiting column 931 is disposed inside the mounting groove 922, and a blocking piece 10 for preventing the limiting column 931 from falling off the mounting groove 922 is integrally formed on the limiting column 931 located inside the mounting groove 922; the inside of mounting groove 922 sets up compression spring 932, and compression spring 932's one end and the diapire fixed connection, the other end and the separation blade 10 fixed connection of mounting groove 922 peg graft completely when the inside of groove 921 that gives way, and spacing hole 912 is worn to locate by the one end that separation blade 10 was kept away from to spacing post 931.

Two positioning rings 20 are welded on the transmission rod 4, the two positioning rings 20 are arranged at intervals along the length direction of the transmission rod 4, and the fixing mechanism is limited between the two positioning rings 20.

The implementation principle of the embodiment is as follows: when the drill bit 5 needs to be replaced, the limiting column 931 is pressed to separate the limiting column 931 from the limiting hole 912, the connection between the first fixed half ring 91 and the second fixed half ring 92 is released, the limiting piece 63 is moved out of the limiting groove, the limiting piece 63 is released from limiting the position between the upper transmission rod 41 and the lower transmission rod 42, the second inserting column 62 is moved to one side far away from the first connecting hole, and the second inserting column 62 drives the lower transmission rod 42 and the drill bit 5 to be far away from the upper transmission rod 41, so that the drill bit 5 is detached; extend the second of new drill bit 5 and peg graft post 62 to the one side that is close to first connecting hole, make the first connecting hole that second peg graft post 62 was male, first peg graft post 61 is pegged graft in the second connecting hole, goes up the position of transfer chain 41 tip and lower transfer chain 42 butt, realizes going up the transfer chain 41 and limiting part 63 and prescribe a limit to the position between the transfer chain 42 down, and then realizes the change to drill bit 5.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The pit digging machine comprises a motor (1), wherein a mounting seat (2) is arranged below the motor (1), two handles (3) are arranged on the mounting seat (2), a transmission rod (4) is arranged below the mounting seat (2), and the transmission rod (4) and the motor (1) synchronously rotate, and the pit digging machine is characterized in that the transmission rod (4) comprises an upper transmission rod (41) and a lower transmission rod (42), the upper transmission rod (41) and the lower transmission rod (42) are fixedly connected through a connecting assembly (6), the connecting assembly (6) comprises a first plug-in post (61) arranged on the upper transmission rod (41) and a second plug-in post (62) arranged on the lower transmission rod (42), the upper transmission rod (41) is provided with a first connecting hole for the second plug-in post (62) to be inserted into, the lower transmission rod (42) is provided with a second connecting hole for the first plug-in column (61) to be inserted into, when the first plug-in column (61) is plugged into the second connecting hole, the second plug-in column (62) is plugged into the first connecting hole, and the end part of the upper transmission rod (41) is abutted against the end part of the lower transmission rod (42); the superposition position of the upper transmission rod (41) and the lower transmission rod (42) is provided with a limiting piece (63) for preventing relative displacement between the upper transmission rod and the lower transmission rod, and a drill bit (5) is arranged outside the lower transmission rod (42).

2. A pit-drilling machine according to claim 1, characterized in that a first connecting column (7) is arranged between the upper driving rod (41) and the first plug-in column (61), a second connecting column (8) is arranged between the lower driving rod (42) and the second plug-in column (62), the first connecting column (7) and the second connecting column (8) are symmetrically arranged by taking the axis of the driving rod (4) as the center, when the first plug-in column (61) is plugged in the second connecting hole, the second plug-in column (62) is plugged in the first connecting hole, the first connecting column (7) and the second connecting column (8) are abutted, and the coincidence position of the first connecting column (7) and the second connecting column (8) and the axis of the driving rod (4) are in the same horizontal plane.

3. A pit-making machine according to claim 2, characterized in that the first connecting column (7) is provided with a first limiting half-groove at the side close to the second connecting column (8), the second connecting column (8) is provided with a second limiting half-groove at the side close to the first connecting column (7), and when the first connecting column (7) and the second connecting column (8) are attached to each other, the first limiting half-groove and the second limiting half-groove enclose a limiting groove adapted to the limiting member (63).

4. A pit-making machine according to claim 3, characterized in that two side walls of the first limiting half-groove are provided with first inclined surfaces, the two first inclined surfaces are inclined in opposite directions, the two first inclined surfaces intersect at the side far away from the opening of the first limiting half-groove, the cross section of the first limiting half-groove is provided in a V shape, and the opening end of the V shape faces the second limiting half-groove.

5. A pit-making machine according to claim 2, characterized in that the contact ends of the first (7) and second (8) connection columns are arranged as a first straight surface, and the second connection column (8) is arranged with a second straight surface, said first and second straight surfaces being parallel and opposite.

6. A pit-making machine according to claim 1, characterized in that the transmission rod (4) is provided with a fixing mechanism for preventing the stop (63) from coming out.

7. A pit-making machine according to claim 6, characterized in that, the fixed establishment includes first stationary half ring (91) and second stationary half ring (92), first stationary half ring (91) and second stationary half ring (92) end to end enclose into the annular with transfer line (4) looks adaptation, the both sides of first stationary half ring (91) all are provided with fixed plate (911), second stationary half ring (92) offer with fixed plate (911) looks adaptation step down groove (921), fixed plate (911) are pegged graft in the inside of step down groove (921), fixed plate (911) and step down groove (921) coincidence department can dismantle the connection through fixed subassembly (93).

8. A pit-making machine according to claim 7, characterized in that the fixed assemblies (93) are in groups, and the groups of fixed assemblies (93) are arranged at intervals along the length direction of the fixed plate (911).

9. The pit digging machine according to claim 8, wherein the fixing component (93) comprises a limiting column (931), a mounting groove (922) is formed in the bottom wall of the abdicating groove (921), a limiting hole (912) is formed at the overlapping position of the fixing plate (911) and the mounting groove (922), one end of the limiting column (931) is arranged inside the mounting groove (922), the other end of the limiting column (912) penetrates through the limiting hole (912), and a blocking piece (10) for preventing the limiting column (931) from falling off is arranged on the limiting column (931) inside the mounting groove (922); the inside of mounting groove (922) sets up compression spring (932), the one end of compression spring (932) and the diapire fixed connection, the other end and separation blade (10) fixed connection of mounting groove (922).

10. A pit-making machine according to claim 6, characterized in that the transmission rod (4) is provided with two positioning rings (20), two positioning rings (20) are arranged at intervals along the length direction of the transmission rod (4), and the fixing mechanism is limited between the two positioning rings (20).