阅读说明：本技术 一种可以对泥土进行破碎的铁锹 (Spade capable of crushing soil ) 是由 程勋振 于 2020-08-19 设计创作，主要内容包括：本发明公开了一种可以对泥土进行破碎的铁锹,涉及泥土挖掘器械技术领域,该一种可以对泥土进行破碎的铁锹,包括铁锹铲体、铁锹连接柄和把手,铁锹铲体固定安装在铁锹连接柄的底部壁面上,把手固定安装在铁锹连接柄的顶部壁面上,铁锹铲体的内部设置有可以进行记忆形变的主弧块和次弧块,在本发明中,该可以对泥土进行破碎的铁锹,破碎块通过次弧块的回复对泥土进行撞击时,通过破碎锥的特殊布置,相对于传统锥状破碎块比较,破碎锥在对泥土块进行撞击时,破碎锥是对泥土块进行多点撞击,同时配合旋转,使得破碎锥在进行撞击的同时,进行多点挤压式广面积破碎,从而对泥土块内部冰块进行充分破碎,从而达到简易破碎泥土块的效果。(The invention discloses a spade capable of crushing soil, which relates to the technical field of soil excavating instruments, and comprises a spade body, a spade connecting handle and a handle, wherein the spade body is fixedly arranged on the bottom wall surface of the spade connecting handle, the handle is fixedly arranged on the top wall surface of the spade connecting handle, and a main arc block and a secondary arc block which can be subjected to memory deformation are arranged inside the spade body. Thereby fully crushing the ice blocks inside the soil blocks, and achieving the effect of simply crushing the soil blocks.)

1. The utility model provides a can carry out kibbling spade to earth, includes the spade shovel body (1), spade connecting handle (2) and handle (3), the spade shovel body (1) fixed mounting is on the bottom wall of spade connecting handle (2), on the top wall of handle (3) fixed mounting in spade connecting handle (2), its characterized in that: the inside of the spade shovel body (1) is provided with main arc piece (4) and time arc piece (6) that can remember deformation, restriction groove (7) have been seted up to top lateral wall upper gap isoplume of main arc piece (4), and restriction groove (7) are circular form slotted hole, the inside of restriction groove (7) is provided with broken fragment (5), regulation groove (8) have all been seted up to upside right-hand member and the downside left end that the top of time arc piece (6) is close to the intermediate position, the position that the inboard of time arc piece (6) corresponds two sets of regulation grooves (8) all is provided with adjustment mechanism (9), rotatory arc groove (16) have been seted up on the inboard corresponding position wall of restriction groove (7).

2. Spade for breaking up earth according to claim 1, characterized in that: the broken block (5) comprises a lower block (10), an upper block (11), a movable groove (12), a bearing (13), an inner connecting block (14), a broken cone (15), a clamping block (17) and a roller sleeve (18).

3. Spade for breaking up earth according to claim 2, characterized in that: the rear end of the lower block (10) is fixedly mounted on the wall surface of the corresponding position of the top of the secondary arc block (6), the upper block (11) is arranged inside the limiting groove (7), the rear end of the upper block (11) corresponds to the front end of the lower block (10), a movable groove (12) is formed in the wall surface of the rear end of the upper block (11), the outer ring outer side wall of the bearing (13) is fixedly mounted on the wall surface of the corresponding position of the inner side of the movable groove (12), the size of the inner connecting block (14) is matched with the size of the inner side of the inner ring of the bearing (13), the rear end of the inner connecting block (14) is fixedly mounted on the wall surface of the corresponding position of the front end of the lower block (10), and the side wall of the inner connecting block (14) is fixedly mounted on the wall surface of the corresponding position of the inner side of.

4. Spade for breaking up earth according to claim 2, characterized in that: the crushing cone (15) is composed of a plurality of groups of conical blocks, the conical blocks on the crushing cone (15) are arranged in a spherical arc shape by taking the central position of the front end wall surface of the upper position block (11) as the center, the rear ends of the conical blocks on the crushing cone (15) are fixedly arranged on the wall surface corresponding to the front end of the upper position block (11), the fixture blocks (17) are circular rod-shaped, the fixture blocks (17) are divided into two groups, the two groups of fixture blocks (17) are respectively fixedly arranged on the wall surfaces corresponding to the top and the bottom of the upper position block (11), the roller sleeve (18) is cylindrical sleeve-shaped, the inner diameter of the roller sleeve (18) is matched with the outer diameter of the fixture block (17), the roller sleeve (18) is movably sleeved on the outer side wall of the fixture block (17, the outer diameter of the roller sleeve (18) is matched with the inner diameter of the rotary arc groove (16), and the roller sleeve (18) is movably buckled at the corresponding position on the inner side of the rotary arc groove (16).

5. Spade for breaking up earth according to claim 1, characterized in that: the adjusting mechanism (9) comprises a main adjusting rod (19), a main fulcrum groove (20), a main strut (21), a main fulcrum block (22), a connecting end groove (23), a movable connecting block (24), a secondary adjusting rod (25), a secondary fulcrum groove (26), a secondary strut (27), a secondary fulcrum block (28) and a movable adjusting groove (29).

6. Spade for breaking up earth, according to claim 5, characterized in that: the main adjusting rod (19) is in the shape of a rod with the front end and the rear end being arc-shaped, the main adjusting rod (19) is positioned at the inner side position of the adjusting groove (8) on the secondary arc block (6), the front end of the main adjusting rod (19) is mutually attached to the wall surface of the inner rear end of the main arc block (4), the main support grooves (20) are arranged on the side wall of the main adjusting rod (19), the main supports (21) are in the shape of a rectangular rod, the main supports (21) are in two groups, the two groups of main supports (21) are respectively arranged at the top and the bottom positions of the main support grooves (20) on the side wall of the main adjusting rod (19) corresponding to the positions, the rear end of the main support (21) is fixedly arranged on the wall surface at the inner front end position of the shovel body (1), the main support block (22) is in the shape of a circular block, the main support block (22) is arranged on the inner side of the main support grooves (20), and the top end and the bottom end of the main support block (22, the connecting end groove (23) is formed in the rear end position of the side wall of the main adjusting rod (19), the connecting end groove (23) is a circular groove hole, the movable connecting block (24) is a circular block, the movable connecting block (24) is arranged inside the connecting end groove (23), and the shape and the size of the secondary adjusting rod (25) are matched with those of the main adjusting rod (19).

7. Spade for breaking up earth, according to claim 5, characterized in that: the secondary adjusting rod (25) is arranged at a position far away from the front end of the main adjusting rod (19) in the adjusting groove (8) on the secondary arc block (6), the secondary fulcrum groove (26) is arranged on the side wall of the secondary adjusting rod (25), the secondary struts (27) are rectangular rod-shaped, the secondary struts (27) are divided into two groups, the two groups of secondary struts (27) are respectively provided with the top and bottom positions of the corresponding positions of the secondary fulcrum groove (26) on the side wall of the secondary adjusting rod (25), the rear ends of the secondary struts (27) are fixedly arranged on the front end position wall surface of the inner side of the shovel body (1), the secondary fulcrum block (28) is in a circular block shape, the secondary fulcrum block (28) is arranged in the secondary fulcrum groove (26), the top end and the bottom end of the secondary fulcrum block (28) are respectively arranged on the side wall of the corresponding position of the secondary strut (27), the moving adjusting groove (29) is a rectangular groove hole with the front end and the rear end both in an arc shape, the moving adjusting groove (29) is arranged at the rear end position of, the inner side of the movable adjusting groove (29) is matched with the inner side of the connecting end groove (23), and the top end of the movable connecting block (24) extends into the movable adjusting groove (29).

8. Spade for breaking up earth, according to claim 5, characterized in that: the main adjusting rod (19) is limited by a main fulcrum groove (20), the length of the main adjusting rod (19) at the front end of the main fulcrum groove (20) is smaller than that of the main adjusting rod (19) at the rear end of the main fulcrum groove (20), the secondary adjusting rod (25) is limited by a secondary fulcrum groove (26), and the length of the secondary adjusting rod (25) at the front end of the secondary fulcrum groove (26) is the same as that of the secondary adjusting rod (25) in the thickness of the secondary fulcrum groove (26).

9. Spade for breaking up earth according to claim 1, characterized in that: the shape and size of the main arc block (4) and the secondary arc block (6) are opposite to the shape and size of the shovel body (1), the side edges of the main arc block (4) and the secondary arc block (6) are fixedly installed on the wall surface of the inner side corresponding position of the shovel body (1), and the main arc block (4) is located on the outer side of the secondary arc block (6).

10. Spade for breaking up earth according to claim 1, characterized in that: two sets of adjustment tank (8) are close to one side lateral wall each other and are kept away from the slope form each other for being, and the position of two sets of adjustment tank (8) is located respectively and is close to regional position between two sets of broken fragments (5) each other corresponding position, and two sets of adjustment mechanism (9) are arranged with the mutual mirror image of time arc piece (6) central point, and rotatory arc groove (16) are the annular slotted hole of slope form.

Technical Field

The invention relates to the technical field of soil excavating equipment, in particular to a spade capable of crushing soil.

Background

When planting the operation usually, need excavate ground earth through artifical handheld spade to be convenient for plant the vegetation, because the vegetation need absorb the inside nutrient of soil when planting, under the normal conditions, earth is the caking gathering state after digging the upset, and its inside nutrient is comparatively concentrated, and the vegetation root of being inconvenient for must absorb, consequently, need carry out the breakage to earth usually.

And in the low cold area of part low temperature or season, when planting the operation, the earth hardness in this area or season is higher relatively, though can excavate earth through the manual work, but the inside low cold influence of low temperature that receives of earth piece after excavating, the inside partial long-pending ice that can condense of earth piece makes earth piece hardness and concentration improve relatively to make earth be difficult for carrying out the breakage through conventional mode, for this reason, we have proposed a spade that can carry out the breakage to earth.

Disclosure of Invention

The present invention is directed to a shovel capable of crushing soil, so as to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a can carry out kibbling spade to earth, includes the spade shovel body, spade connection handle and handle, spade shovel body fixed mounting is on the bottom wall of spade connection handle, handle fixed mounting is on the top wall of spade connection handle, the inside of spade shovel body is provided with main arc piece and the time arc piece that can remember deformation, the restriction groove has been seted up to the top lateral wall upper gap of main arc piece etc. and the restriction groove is circular form slotted hole, the inside in restriction groove is provided with broken fragment, the upside right-hand member and the downside left end that the top of time arc piece is close to the intermediate position have all seted up the adjustment tank, the position that the inboard of time arc piece corresponds two sets of adjustment tanks all is provided with adjustment mechanism, rotatory arc groove has been seted up on the inboard corresponding position wall of restriction groove.

Preferably, the crushing block comprises a lower block, an upper block, a movable groove, a bearing, an inner connecting block, a crushing cone, a clamping block and a roller sleeve.

Preferably, the rear end of the lower block is fixedly mounted on the wall surface of the corresponding position at the top of the secondary arc block, the upper block is arranged inside the limiting groove, the rear end of the upper block corresponds to the front end of the lower block, a movable groove is formed in the wall surface of the rear end of the upper block, the outer ring outer side wall of the bearing is fixedly mounted on the wall surface of the corresponding position at the inner side of the movable groove, the size of the inner connecting block is matched with the size of the inner side of the inner ring of the bearing, the rear end of the inner connecting block is fixedly mounted on the wall surface of the corresponding position at the front end of the lower block, and the side wall of the inner connecting block is fixedly mounted on the wall surface.

Preferably, the crushing awl comprises a plurality of groups of conical blocks, the central position of the front end wall surface of the upper position block on the crushing awl is arranged in a spherical arc shape by taking the central position as the center, the rear ends of the plurality of groups of conical blocks on the crushing awl are fixedly mounted on the front end corresponding position wall surface of the upper position block, the fixture blocks are in a circular rod shape, the fixture blocks are in two groups, the two groups of fixture blocks are fixedly mounted on the top and bottom corresponding position wall surfaces of the upper position block respectively, the roller sleeve is in a cylindrical sleeve shape, the inner diameter of the roller sleeve is matched with the outer diameter of the fixture blocks, the roller sleeve is movably sleeved on the outer side wall of the fixture block, the outer diameter of the roller sleeve is matched with the inner diameter of the rotary arc groove, and the roller sleeve is movably buckled on.

Preferably, the adjusting mechanism comprises a main adjusting rod, a main fulcrum groove, a main strut, a main fulcrum block, a connecting end groove, a movable connecting block, a secondary adjusting rod, a secondary fulcrum groove, a secondary strut, a secondary fulcrum block and a movable adjusting groove.

Preferably, the main adjusting rod is in the shape of a rod with the front end and the rear end being circular arc, the main adjusting rod is positioned at the inner side of the adjusting groove on the secondary arc block, the front end of the main adjusting rod is attached to the inner side rear end wall surface of the main arc block, the main supporting column is arranged on the side wall of the main adjusting rod, the main supporting column is in the shape of a rectangular rod, the two groups of main supporting columns are respectively arranged at the top and the bottom of the main supporting column corresponding position on the side wall of the main adjusting rod, the rear end of the main supporting column is fixedly arranged on the inner side front end position wall surface of the shovel body, the main supporting column is in the shape of a circular block, the main supporting block is arranged at the inner side of the main supporting column groove, the top end and the bottom end of the main supporting column are respectively fixedly arranged on the side wall of the main adjusting rod at the corresponding position, the connecting end groove is arranged at the rear end position of the side wall of the main adjusting rod, the connecting end groove is, the shape and size of the secondary adjusting rod are matched with the shape and size of the main adjusting rod.

Preferably, the secondary adjusting rod is arranged at a position far away from the front end of the main adjusting rod inside the adjusting groove on the secondary arc block, the secondary fulcrum groove is formed in the side wall of the secondary adjusting rod, the secondary struts are rectangular rod-shaped and are two groups, the two groups of secondary struts are respectively arranged at the top and the bottom of the corresponding position of the secondary fulcrum groove in the side wall of the secondary adjusting rod side wall, the rear end of the secondary strut is fixedly arranged on the inner front end position wall surface of the shovel body, the secondary fulcrum block is in a circular block shape and is arranged inside the secondary fulcrum groove, the top end and the bottom end of the secondary fulcrum block are respectively arranged on the side wall of the secondary strut at the corresponding position, the moving adjusting groove is a rectangular groove hole with the front end and the rear end both being arc-shaped, the moving adjusting groove is formed in the rear end position of the side wall of the secondary adjusting rod, the inner size of the moving adjusting groove is matched with the inner size of the connecting end groove, and the top.

Preferably, the main adjusting rod uses the main fulcrum groove as a boundary, the length of the main adjusting rod at the front end of the main fulcrum groove is smaller than that of the main adjusting rod at the rear end of the main fulcrum groove, the secondary adjusting rod uses the secondary fulcrum groove as a boundary, and the length of the secondary adjusting rod at the front end of the secondary fulcrum groove is the same as that of the secondary adjusting rod in the thickness of the secondary fulcrum groove.

Preferably, the shape and size of main arc piece and time arc piece are mutually opposite with the shape and size of the spade shovel body, and the side fixed mounting of main arc piece and time arc piece is on the inboard corresponding position wall of the spade shovel body, and main arc piece is located the outside of time arc piece.

Preferably, two sets of adjustment tank are close to one side lateral wall each other for being far away from the slope form each other, and the position of two sets of adjustment tank is located corresponding position respectively and is close to regional position between two sets of broken fragments each other, and two sets of adjustment mechanism use the mutual mirror image of secondary arc piece central point to arrange, and rotatory arc groove is the annular slotted hole of slope form.

Compared with the prior art, the invention has the beneficial effects that:

(1) this can carry out cracked spade to earth, after the earth piece is excavated completely, broken piece carries out the striking to earth through the reply of inferior arc piece when, arrange through the special of broken awl, for traditional cone broken piece comparison, broken awl is when striking earth piece, broken awl carries out the multiple spot striking to earth piece, the cooperation is rotatory simultaneously, make broken awl when carrying out the striking, carry out the wide area of multiple spot extrusion formula breakage, thereby carry out abundant breakage to the inside ice-cube of earth piece, thereby reach the effect of simple and easy broken earth piece.

(2) This can carry out cracked spade to earth, when carrying out the shovel to earth through the spade shovel body and digging, extrude main arc piece in the spade shovel internal portion through the earth piece of digging, make main arc piece cave in to the spade shovel internal portion, when earth piece breaks away from with ground completely, main arc piece is not receiving the extrusion, thereby reply, when main arc piece replies, main arc piece can produce great vibrations power, thereby shake the bits of broken glass with the earth piece, thereby reach and carry out the broken effect of piecemeal to earth piece.

(3) This can carry out cracked spade to earth, when the main arc piece receives the extrusion of earth piece pressure, according to excavating the degree of depth different, the main arc piece receives earth piece pressure restriction different, when excavating the degree of depth when darker, the deformation degree of main arc piece is great, thereby main arc piece extrusion makes the time arc piece carry out synchronous deformation, after finishing excavating, reply the different vibrations range that produces through main arc piece and time arc piece, make main arc piece and time arc piece easily take place the striking, thereby make the time arc piece carry out dual vibrations, thereby increase the frequency of vibration of time arc piece, thereby reach earth piece and carry out under the broken prerequisite of piecemeal and sieve the vibrations thereby make the inside soil property nutrient distribution of earth piece more even to broken tiny earth mud on the earth.

(4) This can carry out kibbling spade to earth, when the main arc piece receives the extrusion of earth piece pressure, adjust the conduction through adjustment mechanism, thereby make secondary arc piece front end wall face atress deformation degree be greater than main arc piece front end wall face atress deformation degree, when the main arc piece no longer receives pressure, the main arc piece replies, thereby make adjustment mechanism not at the atress restriction, thereby make secondary arc piece drive broken piece reply, thereby make broken front end to the earth piece bump, thereby reach and strike thereby make the earth piece from the atress point to carrying out the broken effect of diffusion all around to earth piece.

(5) This can carry out cracked spade to earth, when adjustment mechanism adjusts at the atress, the rear end position application of force of main regulating lever lifts the back end position of pole when adjusting the mechanism, the swing joint piece can be at the inside removal adjustment tank on the pole of time regulation and remove, thereby make transfer atress end distance and fulcrum distance be close gradually, thereby increase the pole front end atress of time regulation, further strengthen deformation degree when inferior arc piece is disturbed by main arc piece, thereby reach and to increase or reduce the impact force that broken fragment goes on earth piece according to earth piece excavation depth and earth piece size, thereby reach the effect that the adaptation formula was smashed earth piece, avoid because of the impact force great or strike less lead to the circumstances such as the broken or unable breakage of earth piece to take place.

(6) This can carry out cracked spade to earth, begin to extrude main arc piece when making main arc piece drive secondary arc piece through adjustment mechanism and carrying out deformation when the earth piece, the secondary arc piece can drive broken fragment and shrink to main arc piece inside, when broken fragment is when shrinking to main arc piece inside, fixture block and roller shell on the broken piece upper position piece lateral wall pass through the direction of rotatory arc groove, thereby make the upper position piece rotate through the bearing, thereby make the broken awl of upper position piece front end carry out preliminary slight rotatory breakage well in the earth piece bottom of carrying out excavating, thereby make follow-up broken operation to earth simple more swift.

Drawings

FIG. 1 is a schematic view of the shovel for crushing soil according to the present invention;

FIG. 2 is a schematic view of a portion of the shovel body of the shovel of the present invention;

FIG. 3 is a partial structural view of a secondary arc block of the present invention;

FIG. 4 is a schematic view of a partial structure of the fragment of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 4;

FIG. 6 is a partial schematic view of a confinement cell in accordance with the present invention;

FIG. 7 is a partial structural view of a rotating arc chute of the present invention;

FIG. 8 is a partial schematic view of the adjustment mechanism of the present invention;

fig. 9 is a schematic view of the overall structure of the adjusting mechanism of the present invention.

In the figure: 1 shovel body, 2 shovel connecting handle, 3 handle, 4 main arc pieces, 5 broken pieces, 6 secondary arc pieces, 7 limiting grooves, 8 adjusting grooves, 9 adjusting mechanisms, 10 lower pieces, 11 upper pieces, 12 movable grooves, 13 bearings, 14 inner connecting pieces, 15 broken cones, 16 rotating arc grooves, 17 clamping blocks, 18 roller sleeves, 19 main adjusting rods, 20 main fulcrum grooves, 21 main supporting columns, 22 main fulcrum pieces, 23 connecting end grooves, 24 movable connecting blocks, 25 secondary adjusting rods, 26 secondary supporting point grooves, 27 secondary supporting columns, 28 secondary supporting point pieces and 29 moving adjusting grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, the present invention provides a technical solution: a spade capable of crushing soil comprises a spade body 1, a spade connecting handle 2 and a handle 3, wherein the spade body 1 is fixedly arranged on the bottom wall surface of the spade connecting handle 2, the handle 3 is fixedly arranged on the top wall surface of the spade connecting handle 2, the shape of the spade body 1 is the shape of a conventional spade operation part, a main arc block 4 and a secondary arc block 6 which can be subjected to memory deformation are arranged inside the spade body 1, the shapes of the main arc block 4 and the secondary arc block 6 are opposite to the shape of the spade body 1, the side edges of the main arc block 4 and the secondary arc block 6 are fixedly arranged on the inner side corresponding position wall surface of the spade body 1, the main arc block 4 is positioned at the outer side of the secondary arc block 6, a limiting groove 7 is arranged on the top side wall of the main arc block 4 in a clearance and other row, the limiting groove 7 is a circular groove hole, a breaking 5 is arranged inside the limiting groove 7, and a left end and a right end of the top side of the secondary arc block 6 are close to a left side and a right end of a middle position of the regulating groove 8, two sets of adjustment tank 8 are close to one side lateral wall each other and are kept away from the slope form each other for being, and the position of two sets of adjustment tank 8 is located respectively and corresponds the position and be close to regional position between two sets of broken fragments 5 each other, the inboard of inferior arc piece 6 corresponds the position of two sets of adjustment tank 8 and all is provided with adjustment mechanism 9, two sets of adjustment mechanism 9 are arranged with the mutual mirror image of inferior arc piece 6 central point, rotatory arc groove 16 has been seted up on the inboard corresponding position wall of restriction groove 7, rotatory arc groove 16 is the annular slotted hole of slope form.

The fragment crushing block 5 comprises a lower block 10, an upper block 11, a movable groove 12, a bearing 13, an inner connecting block 14, a crushing cone 15, a fixture block 17 and a roller sleeve 18, wherein the lower block 10 is cylindrical block-shaped, the rear end of the lower block 10 is fixedly arranged on the wall surface of the position corresponding to the top of the secondary arc block 6, the upper block 11 is arranged inside the limiting groove 7, the rear end of the upper block 11 corresponds to the front end of the lower block 10, the wall surface of the rear end of the upper block 11 is provided with the movable groove 12, the movable groove 12 is a cylindrical slotted hole, the bearing 13 is the disclosed technology, details are not repeated, the outer side wall of the outer ring of the bearing 13 is fixedly arranged on the wall surface of the position corresponding to the inner side of the movable groove 12, the inner connecting block 14 is circular block-shaped, the size of the inner connecting block 14 is matched with the size of the inner ring of the bearing 13, the rear end of the inner connecting block 14 is fixedly arranged on the wall surface of the position, the side wall of the inner connecting block 14 is fixedly arranged on the wall surface at the corresponding position of the inner side of the bearing 13, wherein the crushing cone 15 is composed of a plurality of groups of conical blocks, the plurality of groups of conical blocks on the crushing cone 15 are arranged in a spherical arc shape by taking the central position of the front end wall surface of the upper position block 11 as the center, the rear ends of the plurality of groups of conical blocks on the crushing cone 15 are all fixedly arranged on the wall surface at the corresponding position of the front end of the upper position block 11, wherein the fixture blocks 17 are round rod-shaped, two sets of fixture blocks 17 are provided, the two sets of fixture blocks 17 are respectively and fixedly arranged on the wall surfaces of the corresponding positions at the top and the bottom of the upper block 11, wherein the roller sleeve 18 is in a cylindrical sleeve shape, the inner diameter of the roller sleeve 18 is matched with the outer diameter of the fixture block 17, the roller sleeve 18 is movably sleeved on the outer side wall of the fixture block 17, the outer diameter of the roller sleeve 18 is matched with the inner diameter of the rotary arc groove 16, and the roller sleeve 18 is movably buckled at the corresponding position on the inner side of the rotary arc groove 16.

The adjusting mechanism 9 comprises a main adjusting rod 19, a main fulcrum groove 20, a main strut 21, a main fulcrum block 22, a connecting end groove 23, a movable connecting block 24, a secondary adjusting rod 25, a secondary fulcrum groove 26, a secondary strut 27, a secondary fulcrum block 28 and a movable adjusting groove 29, wherein the main adjusting rod 19 is in a rod shape with arc-shaped front end and rear end, the main adjusting rod 19 is positioned at the inner side of the adjusting groove 8 on the secondary arc block 6, the front end of the main adjusting rod 19 is mutually attached to the inner side rear end wall surface of the main arc block 4, the main strut groove 20 is arranged on the side wall of the main adjusting rod 19, the main strut groove 20 is used as a limit, the length of the main adjusting rod 19 at the front end of the main strut groove 20 is smaller than that of the main adjusting rod 19 at the rear end of the main strut groove 20, the main strut 21 is in a rectangular rod shape, the main struts 21 are in two groups, and the two groups of main struts 21 are respectively arranged at the top and bottom positions of the corresponding positions of the main strut groove 20, the rear end of the main support 21 is fixedly arranged on the wall surface of the front end position of the inner side of the shovel body 1, wherein the main fulcrum block 22 is in a circular block shape, the main fulcrum block 22 is arranged on the inner side of the main fulcrum groove 20, the top end and the bottom end of the main fulcrum block 22 are respectively and fixedly arranged on the side wall of the main support 21 at the corresponding position, the connecting end groove 23 is arranged at the rear end position of the side wall of the main adjusting rod 19, the connecting end groove 23 is a circular slotted hole, the movable connecting block 24 is in a circular block shape, the movable connecting block 24 is arranged inside the connecting end groove 23, the shape and the size of the secondary adjusting rod 25 are matched with the shape and the size of the main adjusting rod 19, the secondary adjusting rod 25 is arranged on the secondary arc block 6 at the position far away from the front end of the main adjusting rod 19 in the adjusting groove 8, the secondary fulcrum groove 26 is arranged on the side wall of the secondary adjusting rod 25, the secondary fulcrum groove 26 is used as the boundary, the length and the secondary adjusting rod 25 with the thickness of the secondary fulcrum, the secondary support 27 is rectangular rod-shaped, the secondary support 27 is two groups, two groups of secondary supports 27 are respectively provided with the top and bottom positions of the corresponding positions of the secondary support point grooves 26 on the side wall of the secondary adjusting rod 25, the rear end of the secondary support 27 is fixedly arranged on the wall surface of the front end of the inner side of the shovel body 1, the secondary support point blocks 28 are circular block-shaped, the secondary support point blocks 28 are arranged inside the secondary support point grooves 26, the top end and the bottom end of each secondary support point block 28 are respectively arranged on the side wall of the corresponding position of the secondary support post 27, the movable adjusting groove 29 is a rectangular groove hole with the front end and the rear end both being arc-shaped, the movable adjusting groove 29 is arranged at the rear end position of the side wall of the secondary adjusting rod 25, the inner side size of the movable adjusting groove 29 is matched with the inner side size of the connecting end groove 23, and the top.

The working principle is as follows:

when using, when shoveling through the spade shovel body 1 soil earth, earth piece through digging extrudees main arc piece 4 in spade shovel body 1 inside, when earth piece still not totally breaks away from with ground, earth piece receives ground originally to have a real nature pressure influence, earth piece can extrude main arc piece 4, make main arc piece 4 recess to spade shovel body 1 inside, when earth piece totally breaks away from with ground, earth piece is not receiving ground originally to have a real nature pressure influence, main arc piece 4 is not receiving the extrusion, thereby reply, when main arc piece 4 replies, main arc piece 4 can produce great vibrations power, thereby shake the bits of broken glass with earth piece.

When main arc piece 4 receives the extrusion of earth piece pressure, according to excavating the degree of depth different, main arc piece 4 receives the restriction of earth piece pressure different, when excavating the degree of depth when darker, main arc piece 4's deformation degree is great, thereby main arc piece 4 extrudees and makes secondary arc piece 6 carry out synchronous deformation, after finishing excavating, main arc piece 4 and secondary arc piece 6 are all not receiving the restriction and reply, thereby make main arc piece 4 and secondary arc piece 6 all produce vibrations, main arc piece 4 and secondary arc piece 6 vibration range are different simultaneously, thereby make when vibrations, main arc piece 4 and secondary arc piece 6 are easily taken place the striking, thereby make secondary arc piece 6 carry out dual vibrations, thereby strengthen the frequency of vibrations of secondary arc piece 6, thereby shake the breakage to the bold earth piece.

When the main arc block 4 is pressed by the clay block, the rear end side wall of the main arc block 4 presses the main adjusting rod 19 on the corresponding position adjusting mechanism 9, the rear end of the main adjusting rod 19 drives the rear end of the secondary adjusting rod 25 to tilt through the fulcrum limitation of the main fulcrum groove 20, the main strut 21 and the main fulcrum block 22, the front end of the secondary adjusting rod 25 presses the corresponding position wall surface on the inner side of the adjusting groove 8 on the secondary arc block 6 through the fulcrum limitation of the secondary fulcrum groove 26, the secondary strut 27 and the secondary fulcrum block 28, so that the backward force is applied to the secondary arc block 6, meanwhile, the main force application length of the main adjusting rod 19 with the main fulcrum groove 20 as a boundary is smaller than the main force application length of the main adjusting rod 19 with the main fulcrum groove 20 as a boundary, the secondary force application length of the secondary adjusting rod 25 with the secondary fulcrum groove 26 as a boundary is equal to the secondary adjusting rod 25 with the secondary fulcrum groove 26 as a boundary, through the conduction, thereby make 6 front end wall surface atress deformation degrees of inferior arc piece be greater than 4 front end wall surface atress deformation degrees of main arc piece, thereby make broken fragment 5 shrink to the inside of main arc piece 4, when main arc piece 4 no longer receives pressure, main arc piece 4 replies, thereby make adjustment mechanism 9 not in the atress restriction, thereby make 6 broken fragment 5 of drive of inferior arc piece reply, thereby make broken fragment 5's front end to the loam piece bump, thereby make the loam piece break.

When adjustment mechanism 9 was adjusted at the atress, when adjustment mechanism 9 went up the rear end position application of force of main regulating lever 19 and lifted the rear end position of secondary regulation pole 25, swing joint block 24 can be in the inside removal adjustment tank 29 on secondary regulation pole 25 and remove, thereby make the transfer atress end distance be close gradually with the fulcrum distance, thereby increase secondary regulation pole 25 front end atress, deformation degree when further reinforcing secondary arc piece 6 is disturbed by main arc piece 4, thereby further improve broken fragment 5's striking dynamics and make broken fragment 5 more efficient break the earth piece.

When the earth piece begins to extrude main arc piece 4 and makes main arc piece 4 drive secondary arc piece 6 through adjustment mechanism 9 and carry out deformation, secondary arc piece 6 can drive broken fragment 5 and contract to main arc piece 4 inside, when broken fragment 5 is when contracting to main arc piece 4 inside, fixture block 17 and roller shell 18 on broken fragment 5 upper segment 11 lateral wall pass through rotatory arc groove 16 direction, thereby make upper segment 11 rotate through bearing 13, thereby make the broken awl 15 of upper segment 11 front end carry out preliminary slight rotatory breakage well in the earth piece bottom of carrying out the excavation, thereby make follow-up broken operation to earth simple and fast more.

After the earth piece is excavated completely, broken piece 5 when striking earth through the reply of inferior arc piece 6, superior piece 11 on broken piece 5 passes through fixture block 17 and roller shell 18 and carries out the direction transmission on rotatory arc groove 16, thereby make superior piece 11 rotate through bearing 13 and strike to the earth piece, special arrangement through broken awl 15, for traditional cone broken block comparison, broken awl 15 is when striking the earth piece, broken awl 15 carries out the multiple spot striking to the earth piece, the cooperation is rotatory simultaneously, make broken awl 15 when carrying out the striking, carry out the wide area of multiple spot extrusion formula breakage, thereby carry out abundant breakage to the earth piece.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.