CN210445639U

CN210445639U - Be used for pig dust recovery device for feed processing

Info

Publication number: CN210445639U
Application number: CN201921414268.4U
Authority: CN
Inventors: 丁立宏
Original assignee: Weifang Integrated Technology Feed Co Ltd
Current assignee: Weifang Integrated Technology Feed Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-05
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to the technical field of accessories of pig feed processing equipment, in particular to a dust and scraps recovery device for pig feed processing, which can timely clean the sawdust and dust attached to a filter screen assembly to ensure that the filter screen assembly has higher permeability, thereby not only improving the collection efficiency of the sawdust and dust, but also improving the collection effect of the sawdust recovery device for pig feed processing; the dust collection box comprises a box body, four groups of supporting legs, a dust collection pipe, a fan assembly and a filter screen assembly, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the box body are respectively connected with the top ends of the four groups of supporting legs; the electric brush further comprises a brush rod, a rotating shaft, a power gear, a rack, a driving rod, a supporting plate, a fixing plate, a mounting plate, a motor, a reciprocating screw rod and a reciprocating sliding ring, wherein a penetrating hole penetrates through the front end of the fixing plate.

Description

Be used for pig dust recovery device for feed processing

Technical Field

The utility model relates to a pig feed processing equipment auxiliary device's technical field especially relates to a be used for pig for feed processing dirt bits recovery unit.

Background

As is well known, pig feed is generally used for feeding pigs in the pig feeding process, and a large amount of dust and dirt are generated in the pig feed production process, and the dust and the dirt pose a threat to the health of feeding personnel or workers, so that scientific treatment is needed, wherein the dust recovery device for pig feed processing is a device for collecting the dust and the dirt in the pig feed production process, and is widely used in the field of pig feed production; the existing dust and scrap recovery device for pig feed processing comprises a box body, four groups of supporting legs, a dust collection pipe, a fan assembly and a filter screen assembly, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the box body are respectively connected with the top ends of the four groups of supporting legs, a collection cavity is arranged in the box body, the top of the left end of the collection cavity is communicated with the output end of the dust collection pipe, a dust collection cover is arranged at the input end of the dust collection pipe, a mounting hole is formed in the top of the right end of the collection cavity in a communicated manner, the fan assembly is hermetically mounted in the mounting hole, the input end of the fan assembly is communicated with the collection cavity, the filter screen assembly is mounted on the inner side wall of the left end of the mounting hole, the input end of the fan assembly is located; when the existing dust and dust recovery device for pig feed processing is used, firstly, a box body is placed at an appointed dust collecting position through four groups of supporting legs, then a fan assembly is started to enable the fan assembly to discharge air in a collecting cavity, negative pressure is generated in the box body at the moment, a dust collecting pipe sucks external air into the collecting cavity through a dust collecting cover, therefore, when pig feed is produced, dust and sawdust in the air enter the collecting cavity through the dust collecting cover of the dust collecting pipe, then the air in the collecting cavity is discharged out of the box body through the fan assembly, the sawdust and the dust carried in the air are filtered inside the collecting cavity by a filter screen assembly, and when the sawdust and the dust on the filter screen assembly are more, the sawdust and the dust fall to the bottom of the collecting cavity under the action of gravity; present be used for pig for feed processing dirt bits recovery unit to use the discovery, when adnexed saw-dust or dust are more on the filter screen subassembly, although the saw-dust can drop to collecting chamber bottom partly, still adhere to a large amount of saw-dust and dust on the filter screen subassembly, then seriously reduced the permeability of filter screen subassembly this moment, consequently, the volume of airing exhaust of fan subassembly has been reduced, the intake of the pipe air-collecting cover that gathers dust has been reduced promptly, therefore not only reduced the collection efficiency of saw-dust and dust, simultaneously reduced the collection effect of saw-dust and dust, thereby lead to the practicality relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can in time clear up adnexed saw-dust and dust on the filter screen subassembly to guarantee that the filter screen subassembly has higher permeability, consequently not only can improve the collection efficiency of saw-dust and dust, can improve the collection effect that is used for pig is saw-dust recovery unit for feed processing moreover, thereby strengthen being used for pig is dust recovery unit for feed processing.

The utility model discloses a be used for pig feed processing to use dirt bits recovery unit, including box, four group's landing legs, tub, fan subassembly and filter screen subassemblies gather dust, the left front side of bottom, left rear side, right front side and the right rear side of box are connected with the top of four group's landing legs respectively, the inside of box is provided with collects the chamber, collects the left end top in chamber and gathers the output intercommunication of tub, the input of tub that gathers dust is provided with the dust cage, the right-hand member top intercommunication in collection chamber is provided with the mounting hole, fan subassembly seal installation is in the mounting hole, the input and the collection chamber of fan subassembly communicate, the filter screen subassembly is installed on the mounting hole left end inside wall, the input of fan subassembly is located the filter screen subassembly, the right-hand member bottom region intercommunication in collection chamber is provided with the clearance hole, the right-hand member lateral wall in clearance; the electric brush comprises a brush rod, a rotating shaft, a power gear, a rack, a driving rod, a supporting plate, a fixed plate, a mounting plate, a motor, a reciprocating screw rod and a reciprocating sliding ring, wherein the bottom end of the motor is connected with the right rear side of the top end of a box body, the bottom end of the fixed plate and the bottom end of the mounting plate are respectively connected with the right rear side and the right front side of the top end of the box body, a penetrating hole is arranged at the front end of the fixed plate in a penetrating manner, the output end of the motor penetrates through the penetrating hole from the rear side of the fixed plate and extends out to the front side of the fixed plate, the output end of the motor is concentrically connected with the rear end of the reciprocating screw rod, the front end of the reciprocating screw rod is connected with a rear end bearing of the mounting plate, the front side and the rear side of the left end of the supporting plate are respectively connected with the right end of the fixed plate and the right end of the mounting plate, the utility model discloses a filter screen assembly, including drive pole, drive slide-hole and drive pole, the left end of drive pole is connected with the right-hand member of reciprocal sliding ring, the regional bottom in right part of drive pole is connected with the top of rack, the right-hand member top intercommunication in the collection chamber of box is provided with the rotation hole, rotate hole and pivot bearing suit, the right-hand member and the power gear key-type connection of pivot, the left end of pivot is connected with the right-hand member top of brush-holder stud, the top of power gear meshes with the bottom of rack, the right-hand member of brush-holder stud is provided with the multiunit brush hair, the right-hand member of multiunit brush hair all hugs closely with the.

The utility model discloses a be used for pig is dirt bits recovery unit for feed processing, the apron subassembly includes switch plate, kelly and closing plate, the bottom of switch plate is articulated with the outer lateral wall of the right-hand member bottom area in the clearance hole of box, the left end of switch plate is provided with the seal groove, the seal groove clamps with closing plate fixed seal, the left end of kelly is connected with the right-hand member upside lateral wall in the clearance hole of box, the right-hand member of kelly is provided with the dop, the left end of dop is hugged closely with the right-hand member top of switch plate, the left end of closing plate is sealed hugging closely with the right-hand member lateral wall in clearance hole.

The utility model discloses a be used for pig is dirt bits recovery unit for feed processing still includes four universal wheel subassemblies of group, the top of four universal wheel subassemblies of group is connected with the bottom of four landing legs of group respectively.

The utility model discloses a be used for pig for feed processing dirt bits recovery unit still includes the handle, the left end of handle is connected with the right-hand member of cubical switchboard.

The utility model discloses a be used for pig for feed processing dirt bits recovery unit still includes anti-skidding ball handle, the left end of anti-skidding ball handle is connected with the right-hand member of handle.

The utility model discloses a dirt bits recovery unit for pig feed processing, the regional top in left part and the bottom of drive pole are provided with two sets of auxiliary tanks respectively, it is provided with two sets of auxiliary wheels to rotate respectively in two sets of auxiliary tanks, the outer end of two sets of auxiliary wheels is rotated with the top and the bottom that drive the slide opening respectively and is hugged closely.

The utility model discloses a be used for pig for feed processing dirt bits recovery unit still includes two sets of promotion handles, the bottom of two sets of promotion handles is connected with the top front side and the rear side of box respectively.

The utility model discloses a dirt and dust recovery unit for pig feed processing still includes two sets of anti-skidding handle covers, two sets of anti-skidding handle covers respectively with the fixed suit of the handheld end of two sets of promotion handles.

Compared with the prior art, the beneficial effects of the utility model are that: when the dust and dust recovery device for pig feed processing works, the motor is started to drive the output end of the motor to drive the reciprocating screw rod to rotate under the support of the fixed plate and the mounting plate, then the reciprocating slip ring drives the rack to reciprocate along the axial direction of the reciprocating screw rod through the driving rod, then the rack drives the power gear to rotate 180 degrees in a forward direction and a reverse direction alternately, at the moment, the power gear drives the brush rod to rotate 180 degrees in a reciprocating manner by taking the rotating shaft as a center through the rotating shaft, at the moment, a plurality of groups of brush hairs of the brush rod brush the input end of the filter screen assembly in a reciprocating manner, so that the sawdust and the dust passing through the input end of the filter screen assembly are brushed off to the bottom of the collection cavity on the filter screen assembly, the aim of cleaning the filter screen assembly is achieved, the sawdust and the dust attached to the filter screen assembly are cleaned in time, the filter screen assembly is ensured to have higher, but also can improve the collecting effect of the wood chip recovery device for pig feed processing, thereby enhancing the practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of a partially enlarged structure of a;

FIG. 3 is a schematic view of the connection structure of the support plate and the outgoing filament rod of the present invention;

fig. 4 is a schematic view of the connection structure of the rack and the power gear of the present invention;

FIG. 5 is a schematic view of the connection structure of the switch board and the box body of the present invention;

in the drawings, the reference numbers: 1. a box body; 2. four groups of supporting legs; 3. a dust collecting pipe; 4. a fan assembly; 5. a screen assembly; 6. a collection chamber; 7. a dust collection cover; 8. a brush bar; 9. a rotating shaft; 10. a power gear; 11. a rack; 12. driving the rod; 13. a support plate; 14. a fixing plate; 15. mounting a plate; 16. a motor; 17. a reciprocating screw rod; 18. a reciprocating slip ring; 19. a plurality of groups of bristles; 20. a switch plate; 21. a clamping rod; 22. a sealing plate; 23. four groups of universal wheel assemblies; 24. a handle; 25. an anti-slip ball handle; 26. two sets of auxiliary grooves; 27. two sets of auxiliary wheels; 28. two groups of pushing handles; 29. two groups of anti-skid handle sleeves; 30. driving the slide hole.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the utility model relates to a dust recovery device for pig feed processing, which comprises a box body 1, four groups of supporting legs 2 and a dust collecting pipe 3, the dust collecting device comprises a fan assembly 4 and a filter screen assembly 5, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of a box body 1 are respectively connected with the top ends of four groups of supporting legs 2, a collecting cavity 6 is arranged inside the box body 1, the top of the left end of the collecting cavity 6 is communicated with the output end of a dust collecting pipe 3, the input end of the dust collecting pipe 3 is provided with a dust collecting cover 7, the top of the right end of the collecting cavity 6 is communicated with a mounting hole, the fan assembly 4 is hermetically installed in the mounting hole, the input end of the fan assembly 4 is communicated with the collecting cavity 6, the filter screen assembly 5 is installed on the inner side wall of the left end of the mounting hole, the input end of the fan assembly 4 is located in the filter screen assembly; the brush rod type reciprocating brush head further comprises a brush rod 8, a rotating shaft 9, a power gear 10, a rack 11, a driving rod 12, a supporting plate 13, a fixing plate 14, a mounting plate 15, a motor 16, a reciprocating screw rod 17 and a reciprocating slide ring 18, wherein the bottom end of the motor 16 is connected with the right rear side of the top end of the box body 1, the bottom end of the fixing plate 14 and the bottom end of the mounting plate 15 are respectively connected with the right rear side and the right front side of the top end of the box body 1, a penetrating hole is arranged at the front end of the fixing plate 14 in a penetrating manner, the output end of the motor 16 penetrates through the penetrating hole from the rear side of the fixing plate 14 and extends out to the front side of the fixing plate 14, the output end of the motor 16 is concentrically connected with the rear end of the reciprocating screw rod 17, the front end of the reciprocating screw rod 17 is connected with a rear end bearing of the mounting plate 15, the left front side and the rear side of the supporting plate 13 are, the left end of the supporting plate 13 is provided with a driving sliding hole 30 in a penetrating manner, the driving sliding hole 30 is slidably clamped with the driving rod 12, the left end of the driving rod 12 is connected with the right end of the reciprocating sliding ring 18, the bottom end of the right part area of the driving rod 12 is connected with the top end of the rack 11, the top of the right end of the collecting cavity 6 of the box body 1 is provided with a rotating hole in a communicating manner, the rotating hole is sleeved with a rotating shaft 9 bearing, the right end of the rotating shaft 9 is connected with a power gear 10 in a key manner, the left end of the rotating shaft 9 is connected with the top of the right end of the brush rod 8, the top end of the power gear 10 is meshed with the bottom end of the rack 11, the right end of the brush rod 8 is; when the dust and dust recovery device for pig feed processing works, the motor is started to drive the output end of the motor to drive the reciprocating screw rod to rotate under the support of the fixed plate and the mounting plate, then the reciprocating slip ring drives the rack to reciprocate along the axial direction of the reciprocating screw rod through the driving rod, then the rack drives the power gear to rotate 180 degrees in a forward direction and a reverse direction alternately, at the moment, the power gear drives the brush rod to rotate 180 degrees in a reciprocating manner by taking the rotating shaft as a center through the rotating shaft, at the moment, a plurality of groups of brush hairs of the brush rod brush the input end of the filter screen assembly in a reciprocating manner, so that the sawdust and the dust passing through the input end of the filter screen assembly are brushed off to the bottom of the collection cavity on the filter screen assembly, the aim of cleaning the filter screen assembly is achieved, the sawdust and the dust attached to the filter screen assembly are cleaned in time, the filter screen assembly is ensured to have higher, but also can improve the collecting effect of the wood chip recovery device for pig feed processing, thereby enhancing the practicability.

The utility model discloses a be used for pig feed processing to use dirt bits recovery unit, the apron subassembly includes switch plate 20, kelly 21 and closing plate 22, the bottom of switch plate 20 is articulated with the regional lateral wall in the right-hand member bottom of the clearance hole of box 1, the left end of switch plate 20 is provided with the seal groove, the seal groove is fixed sealed with closing plate 22 and is clamped, the left end of kelly 21 is connected with the right-hand member upside lateral wall of the clearance hole of box 1, the right-hand member of kelly 21 is provided with the dop, the left end of dop is hugged closely with the right-hand member top of switch plate 20, the left end of closing plate 22 is sealed hugged closely with the right-hand member lateral wall; through the kelly with the switch board dress at the right-hand member of box, compare with the mounting of switch board spiral shell on the box, the switching operation of switch board is more convenient, and the closing plate has then improved the degree of tightness between switch board and the box simultaneously to the practicality has been strengthened.

The utility model discloses a dust recovery device for pig feed processing, which also comprises four groups of universal wheel assemblies 23, wherein the top ends of the four groups of universal wheel assemblies 23 are respectively connected with the bottom ends of four groups of supporting legs 2; the moving process of the box body is more convenient through the four groups of universal wheel assemblies, so that convenience is enhanced.

The utility model discloses a dust recovery device for pig feed processing, which also comprises a handle 24, wherein the left end of the handle 24 is connected with the right end of the switch board 20; make the switch of cubical switchboard control convenience more through the handle to the practicality has been strengthened.

The utility model discloses a dust recovery device for pig feed processing, which also comprises an anti-skid ball handle 25, wherein the left end of the anti-skid ball handle 25 is connected with the right end of a handle 24; the anti-slip ball handle reduces the probability of slipping of the hand on the handle when the handle is controlled, thereby enhancing the reliability.

The utility model discloses a dust recovery device for pig feed processing, the top and bottom of the left region of the driving rod 12 are respectively provided with two sets of auxiliary grooves 26, two sets of auxiliary wheels 27 are respectively rotatably arranged in the two sets of auxiliary grooves 26, and the outer ends of the two sets of auxiliary wheels 27 are respectively closely attached to the top and bottom of the driving slide hole 30; sliding friction between the driving rod and the driving sliding hole is changed into rolling friction through the two sets of auxiliary wheels, abrasion between the driving rod and the driving sliding hole is greatly reduced, and therefore practicability is enhanced.

The utility model discloses a dust recovery device for pig feed processing, which also comprises two groups of pushing handles 28, wherein the bottom ends of the two groups of pushing handles 28 are respectively connected with the front side and the rear side of the top end of the box body 1; the moving process of the box body is more convenient by pushing the handle, so that the practicability is enhanced.

The utility model discloses a dust recovery device for pig feed processing, which also comprises two groups of anti-skid handle sleeves 29, wherein the two groups of anti-skid handle sleeves 29 are respectively fixedly sleeved with the handheld ends of the two groups of push handles 28; the friction coefficient of the two groups of pushing handles at the handheld end is increased through the two groups of anti-skidding handle sleeves, the probability that the handles slip on the two groups of pushing handles when the two groups of pushing handles are controlled is reduced, and therefore the practicability is enhanced.

The utility model discloses a dust recovery unit for pig feed processing, when it works, at first place the box in appointed position of gathering dust through four groups of landing legs, then start the fan subassembly and make the fan subassembly will collect the air discharge in the intracavity, produce the negative pressure in the box this moment, the pipe of gathering dust inhales the air of external world into through the dust cage and collects the intracavity, consequently, in pig feed production, dust and saw-dust in the air then enter into and collect the intracavity through the dust cage of the pipe of gathering dust, then collect the air in the intracavity and be discharged the box by the fan subassembly, and saw-dust and dust carried in the air are filtered in the inside of collecting the chamber by the filter screen subassembly, when saw-dust and dust on the filter screen subassembly are more, saw-dust and dust fall to the bottom of collecting the chamber under the effect of gravity, when being used for pig feed processing to use dust recovery unit work, the starter motor makes the output of motor drive reciprocal lead screw rotate under the support of fixed plate and mounting panel, then reciprocal sliding ring then drives the rack through the drive pole along the axial reciprocating motion of reciprocal lead screw, then the rack then drives power gear forward and reverse rotation in turn 180 degrees, at this moment power gear then drives the brush-holder stud through the pivot and uses the pivot to reciprocate 180 degrees as the center, the multiunit brush hair of brush-holder stud then reciprocates and brushes at the input of filter screen subassembly this moment, brush the bottom to collecting the chamber on the filter screen subassembly with saw-dust and the dust that will cross the net subassembly input, the mesh of clearing up the filter screen subassembly has been reached.

The terms "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A dust recovery device for pig feed processing comprises a box body (1), four groups of supporting legs (2), a dust collection pipe (3), a fan assembly (4) and a filter screen assembly (5), wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the box body (1) are respectively connected with the top ends of the four groups of supporting legs (2), a collection cavity (6) is arranged inside the box body (1), the top of the left end of the collection cavity (6) is communicated with the output end of the dust collection pipe (3), a dust collection cover (7) is arranged at the input end of the dust collection pipe (3), a mounting hole is formed in the top of the right end of the collection cavity (6) in a communicating mode, the fan assembly (4) is installed in the mounting hole in a sealing mode, the input end of the fan assembly (4) is communicated with the collection cavity (6), the filter screen assembly (5) is installed on the inner side wall of the left end of the, a cleaning hole is communicated with the bottom area of the right end of the collecting cavity (6), and a cover plate assembly is arranged on the outer side wall of the right end of the cleaning hole; the device is characterized by further comprising a brush rod (8), a rotating shaft (9), a power gear (10), a rack (11), a driving rod (12), a supporting plate (13), a fixing plate (14), a mounting plate (15), a motor (16), a reciprocating screw rod (17) and a reciprocating sliding ring (18), wherein the bottom end of the motor (16) is connected with the right rear side of the top end of the box body (1), the bottom end of the fixing plate (14) and the bottom end of the mounting plate (15) are respectively connected with the right rear side and the right front side of the top end of the box body (1), a penetrating hole is arranged at the front end of the fixing plate (14) in a penetrating manner, the output end of the motor (16) penetrates through the penetrating hole from the rear side of the fixing plate (14) and extends to the front side of the fixing plate (14), the output end of the motor (16) is concentrically connected with the rear end of the reciprocating screw rod (17), and the front end of the reciprocating screw rod (17), the front side and the rear side of the left end of the supporting plate (13) are respectively connected with the right end of the fixed plate (14) and the right end of the mounting plate (15), the inner circumferential side wall of the reciprocating sliding ring (18) is provided with internal threads, the reciprocating sliding ring (18) is in screw assembly with the reciprocating screw rod (17), the left end of the supporting plate (13) is provided with a driving sliding hole (30) in a penetrating way, the driving sliding hole (30) is in sliding clamping with the driving rod (12), the left end of the driving rod (12) is connected with the right end of the reciprocating sliding ring (18), the bottom end of the right part area of the driving rod (12) is connected with the top end of the rack (11), the top of the right end of the collecting cavity (6) of the box body (1) is provided with a rotating hole in a communicating way, the rotating hole is in bearing assembly with the rotating shaft (9), the right end of the rotating shaft (9) is in key connection with the power gear (10), and the left end of the rotating shaft, the top end of the power gear (10) is meshed with the bottom end of the rack (11), the right end of the brush rod (8) is provided with a plurality of groups of bristles (19), and the right ends of the plurality of groups of bristles (19) are tightly attached to the left end input side of the filter screen assembly (5).

2. The dust recovery device for pig feed processing as claimed in claim 1, wherein the cover plate assembly comprises a switch plate (20), a clamping rod (21) and a sealing plate (22), the bottom end of the switch plate (20) is hinged to the outer side wall of the bottom portion of the right end of the cleaning hole of the box body (1), the left end of the switch plate (20) is provided with a sealing groove, the sealing groove is fixedly and hermetically clamped with the sealing plate (22), the left end of the clamping rod (21) is connected with the outer side wall of the upper side of the right end of the cleaning hole of the box body (1), the right end of the clamping rod (21) is provided with a clamping head, the left end of the clamping head is tightly attached to the top of the right end of the switch plate (20), and the left end of the sealing plate (22) is tightly attached to the outer side wall of the right end of the cleaning.

3. The dust recycling device for pig feed processing as claimed in claim 2, further comprising four sets of universal wheel assemblies (23), wherein the top ends of the four sets of universal wheel assemblies (23) are respectively connected with the bottom ends of the four sets of supporting legs (2).

4. The dust recycling device for pig feed processing according to claim 3, characterized in that it further comprises a handle (24), the left end of the handle (24) is connected with the right end of the switch board (20).

5. The pig feed processing dust recovery device according to claim 4, further comprising an anti-slip ball handle (25), wherein the left end of the anti-slip ball handle (25) is connected with the right end of the handle (24).

6. The pig feed processing dust and debris recycling device as claimed in claim 5, wherein two sets of auxiliary grooves (26) are respectively formed in the top end and the bottom end of the left area of the driving rod (12), two sets of auxiliary wheels (27) are respectively rotatably arranged in the two sets of auxiliary grooves (26), and the outer ends of the two sets of auxiliary wheels (27) are respectively and closely attached to the top end and the bottom end of the driving slide hole (30).

7. The dust recycling device for pig feed processing according to claim 6, further comprising two sets of pushing handles (28), wherein the bottom ends of the two sets of pushing handles (28) are respectively connected with the front side and the rear side of the top end of the box body (1).

8. The pig feed processing dust recovery device according to claim 7, further comprising two sets of anti-slip handle sleeves (29), wherein the two sets of anti-slip handle sleeves (29) are respectively fixedly sleeved with the hand-held ends of the two sets of pushing handles (28).