CN109625492B

CN109625492B - Supporting frame for grain bagging

Info

Publication number: CN109625492B
Application number: CN201811390345.7A
Authority: CN
Inventors: 张纯
Original assignee: Jiangsu Jinding Construction Group Co Ltd
Current assignee: Jiangxi Jinzhu Rice Co.,Ltd.
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-10-02
Anticipated expiration: 2038-11-21
Also published as: CN109625492A

Abstract

The invention relates to a supporting frame for grains, in particular to a supporting frame for grain bagging. The invention aims to provide a supporting frame for grain bagging, which can reduce labor, reduce cost and is beneficial to saving. A supporting frame for grain bagging comprises a first annular plate, a movable rod, a bracket, a supporting rod, a base, a pin rod, a guide sleeve, a supporting rod, a lifting plate, a first spring, a wedge-shaped plate, a plate spring, a guide rod and the like; the bottom of first annular plate is connected with the movable rod, and the support is located the below of first annular plate, and open at the top of support has downwardly extending's first jack, and the movable rod slidingtype is located first jack. The supporting frame for grain bagging provided by the invention has a unique and novel structure, can be operated by only one person, reduces the manual use and the cost, is beneficial to saving, is convenient to use, is easy to produce and manufacture, is low in production and manufacturing cost, is easy to maintain and repair, and is low in maintenance cost.

Description

Supporting frame for grain bagging

Technical Field

The invention relates to a supporting frame for grains, in particular to a supporting frame for grain bagging.

Background

The grains refer to grains, including wheat, beans, coarse grains, rice, and the like, contain rich nutrients, mainly including proteins, vitamins, dietary fibers, fats, and the like, and after the grains harvested in the field are processed by people, the grains need to be put into the bags for storage, at the moment, one person needs to prop open the bags, and the other person needs to add the grains, so that the grains occupy serious labor, increase the cost, are not beneficial to saving, and are not beneficial to production and life of people.

Disclosure of Invention

The invention aims to overcome the defects that after the grain harvested in a field is treated by people, the grain needs to be put into a bag for storage, one person needs to prop open the bag at the moment, and the other person needs to add the grain, so that the support frame not only occupies serious labor, but also increases the cost and is not beneficial to saving.

A supporting frame for grain bagging comprises a first annular plate, a movable rod, a support, a supporting rod, a base, a pin rod, a guide sleeve, a supporting rod, a lifting plate, a first spring, a wedge-shaped plate, a plate spring, a guide rod, a movable block, a push-pull block, a second spring, an inserted rod, a second annular plate, a third spring and an inclined plate, wherein the bottom of the first annular plate is connected with the movable rod, the support is positioned below the first annular plate, the top of the support is provided with a first inserting hole extending downwards, the movable rod is slidably positioned in the first inserting hole, the bottom of the support is provided with a second inserting hole extending upwards, the supporting rod is positioned in the second inserting hole, the supporting rod is slidably connected with the support, the lower end of the supporting rod is connected with the top of the base, the lower end of the support is contacted with the top of the base, the lower part of the support is uniformly provided with a plurality of first pin holes, the upper part of the supporting rod is provided with, the pin rod is slidably positioned in the first pin hole and the second pin hole, the pin rod is provided with a wedge-shaped groove which penetrates through the pin rod up and down, the pin rod is slidably positioned in the guide sleeve, the guide sleeve is positioned on the left side of the support, the bottom of the guide sleeve is connected with a support rod, the lower end of the support rod is connected with the top of the base, the lifting plate is positioned between the base and the guide sleeve, the lifting plate is provided with a movable hole which penetrates through the guide sleeve up and down, the support rod is positioned in the movable hole, the support rod is slidably connected with the lifting plate, a first spring is sleeved on the support rod, the first spring is positioned between the base and the lifting plate, the top of the lifting plate is connected with a wedge-shaped plate, the wedge-shaped plate is positioned on the left side of the guide sleeve, the wedge-shaped plate is positioned in the wedge-shaped groove and is slidably matched with the wedge-shaped groove, the plate, one end of the guide rod is connected with a movable block, the movable block is located in the first annular plate, the other end of the guide rod is connected with a push-pull block, the push-pull block is located on the outer side of the first annular plate, the second spring is sleeved on the guide rod and located between the first annular plate and the push-pull block, the top of the first annular plate is connected with an inserted link, the second annular plate is located above the first annular plate, a large insertion hole which penetrates through the second annular plate from top to bottom is formed in the second annular plate, the inserted link is located in the large insertion hole, the inserted link is in sliding connection with the second annular plate, the third spring is sleeved on the inserted link and located between the first annular plate and the second annular plate, the bottom of the second annular plate is connected with an inclined plate, the inclined plate is located on the outer side of the first annular plate, the push-pull block is provided with an inclined hole which penetrates through the first annular plate from top to bottom, the inclined plate is located in the inclined hole, the inclined.

In a preferred embodiment of the invention, the device further comprises an annular slide rail, an L-shaped slide block, an annular cam, a handle, a contact wheel and an L-shaped connecting plate, wherein the annular slide rail is fixedly sleeved on the upper part of the support, the L-shaped slide block is positioned on the outer side of the annular slide rail, the L-shaped slide block is connected with the annular slide rail in a sliding manner, the annular cam is connected to the top of the L-shaped slide block, the annular cam is rotatably sleeved on the support, the handle is connected to the outer side wall of the annular cam, the contact wheel is positioned above the annular cam, the contact wheel is contacted with the annular cam, the L-shaped connecting plate is positioned on the outer side of the first annular plate, the L-shaped connecting plate is connected with the first annular plate, the L-shaped connecting plate is positioned below the second spring.

In a preferred embodiment of the invention, the device further comprises a gear ring, a large gear, a rotating shaft, a bearing and a rotating wheel, wherein the gear ring is connected to the bottom of the L-shaped sliding block, the annular sliding rail is located in the gear ring, the large gear is located below the gear ring, the gear ring is meshed with the large gear, the large gear is fixedly sleeved on the rotating shaft, the right end of the rotating shaft is in interference fit connection with the bearing, the bearing is embedded in the left side wall of the support, and the left end of the rotating shaft is.

When the invention is used, a person firstly places a bag in a first annular plate and turns the mouth part of the bag outwards, then the person can press a second annular plate downwards, the second annular plate compresses a third spring, meanwhile, the second annular plate drives an inclined plate to move downwards, the inclined plate slides downwards in an inclined hole and pushes a push-pull block to move inwards, the push-pull block drives a guide rod and a movable block to move inwards and compresses a second spring, at the moment, the person can hang the turning part of the bag mouth on the movable block, then the pressing of the second annular plate is released, the second annular plate drives the inclined plate to move upwards to reset under the elastic force of the third spring, simultaneously, the inclined plate drives the push-pull block to move outwards, and under the elastic force of the second spring, the guide rod drives the movable block to move outwards to reset and tightly clamp the turning part of the bag mouth, therefore, the mouth of the bag is opened, people can conveniently load grains into the bag at the moment without opening the bag by other people, labor is saved, people can adjust according to the length of the bag, people can step on the lifting plate by feet at the moment, the lifting plate can move downwards, the lifting plate starts to compress the first spring, meanwhile, the lifting plate drives the wedge plate to move downwards, the wedge plate pushes the pin rod to move leftwards, the pin rod pushes the plate spring to swing leftwards, the plate spring provides rebound reset assistance for the pin rod, the pin rod moves leftwards out from the second pin hole and the first pin hole at the moment and is clamped in the small clamping groove by the pin rod, the pin rod is fixed, people can lift the support upwards to drive the bag to adjust, after the adjustment is finished, the pin rod moves out of the small clamping groove again, and under the elastic action of the first spring, the lifting plate and the wedge plate move upwards to reset, simultaneously under the spring action of leaf spring, the pin pole moves right and resets, and insert the pin pole back to in second pinhole and corresponding first pinhole, can fix the support, adjustment convenient and fast, after finishing to sack dress grain, and when needing to bind the sack, people can drive the sack through first annular plate and movable block and rock from top to bottom, the movable rod can slide in first jack, thereby grain to in the sack shakes, make grain more real, for binding provide the space, high durability and convenient use.

People can hold the handle this moment, and drive the ring cam through the handle and rotate, the ring cam drives L shape slider and rotates, the ring slide rail provides the slip assistance for L shape slider, the ring cam promotes the contact wheel and moves simultaneously, thereby the contact wheel carries out the up-and-down motion, thereby the contact wheel drives L shape connecting plate and carries out the up-and-down motion, thereby L shape connecting plate drives first annular plate and carries out the up-and-down motion, thereby carry out the oscillationg from top to bottom to the sack that is equipped with grain, it is more convenient to rock the operation.

People can rotate the swiveling wheel this moment, thereby the swiveling wheel drives the rotation axis and rotates, and the bearing provides rotation assistance for the rotation axis, thereby the rotation axis drives the gear wheel and rotates, thereby the gear wheel drives the ring gear and rotates, thereby the ring gear drives L shape slider and rotates, operates convenient and fast more, labour saving and time saving.

The beneficial effects are that: the supporting frame for grain bagging provided by the invention has a unique and novel structure, can be operated by only one person, reduces the manual use, reduces the cost, is beneficial to saving, is convenient to use, is easy to produce and manufacture, is low in production and manufacturing cost, easy to maintain and repair, low in maintenance and repair cost, beneficial to the production and life of people, easy to popularize and apply and wide in application range.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 1.

In the figure: 1 first annular plate, 2 movable rods, 3 supports, 4 support rods, 5 bases, 6 pin rods, 7 guide sleeves, 8 support rods, 9 lifting plates, 10 first springs, 11 wedge-shaped plates, 12 leaf springs, 13 guide rods, 14 movable blocks, 15 push-pull blocks, 16 second springs, 17 insertion rods, 18 second annular plates, 19 third springs, 20 inclined plates, 31 annular sliding rails, 32L-shaped sliding blocks, 33 annular cams, 34 handles, 35 contact wheels, 36L-shaped connecting plates, 41 gear rings, 42 large gears, 43 rotating shafts, 44 bearings, 45 rotating wheels, 101 guide holes, 111 small clamping grooves, 151 inclined holes, 181 large insertion holes, 301 first insertion holes, 302 second insertion holes, 303 first pin holes, 401 second pin holes 601, wedge-shaped grooves and 901 movable holes.

Detailed Description

It is to be noted that, in the case of the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to identical components having the same reference numerals or the same component names in a meaningful manner. The positional references selected in the description, such as upper, lower, lateral, etc., refer also to the directly described and illustrated figures and are to be read into the new position in the sense of a change in position.

Example 1

A supporting frame for grain bagging is disclosed, as shown in figures 1-3, and comprises a first annular plate 1, a movable rod 2, a support 3, a supporting rod 4, a base 5, a pin rod 6, a guide sleeve 7, a supporting rod 8, a lifting plate 9, a first spring 10, a wedge-shaped plate 11, a plate spring 12, a guide rod 13, a movable block 14, a push-pull block 15, a second spring 16, an inserted rod 17, a second annular plate 18, a third spring 19 and an inclined plate 20, wherein the bottom of the first annular plate 1 is connected with the movable rod 2, the support 3 is positioned below the first annular plate 1, the top of the support 3 is provided with a first inserting hole 301 extending downwards, the movable rod 2 is slidably positioned in the first inserting hole 301, the bottom of the support 3 is provided with a second inserting hole 302 extending upwards, the supporting rod 4 is positioned in the second inserting hole 302, the supporting rod 4 is slidably connected with the support 3, the lower end of the supporting rod 4 is connected with the top of the base 5, the lower end of the support 3 is contacted, the lower part of the bracket 3 is uniformly provided with a plurality of first pin holes 303, the upper part of the support rod 4 is provided with a second pin hole 401, the second pin hole 401 corresponds to the first pin hole 303, the pin rod 6 is slidably positioned in the first pin hole 303 and the second pin hole 401, the pin rod 6 is provided with a wedge-shaped groove 601 which penetrates up and down, the pin rod 6 is slidably positioned in the guide sleeve 7, the guide sleeve 7 is positioned on the left side of the bracket 3, the bottom of the guide sleeve 7 is connected with a support rod 8, the lower end of the support rod 8 is connected with the top of the base 5, the lifting plate 9 is positioned between the base 5 and the guide sleeve 7, the lifting plate 9 is provided with a movable hole 901 which penetrates up and down, the support rod 8 is positioned in the movable hole 901, the support rod 8 is slidably connected with the lifting plate 9, a first spring 10 is sleeved on the support rod 8, the first spring 10 is positioned between the base 5 and the lifting plate 9, the top of, the wedge-shaped plate 11 is positioned in the wedge-shaped groove 601, the wedge-shaped plate 11 is in sliding fit with the wedge-shaped groove 601, the plate spring 12 is positioned on the left side of the pin rod 6, the plate spring 12 is in contact with the pin rod 6, the lower end of the plate spring 12 is connected with the top of the base 5, the first annular plate 1 is provided with a guide hole 101 which penetrates through the left and the right, the guide rod 13 is positioned in the guide hole 101 in a sliding manner, one end of the guide rod 13 is connected with a movable block 14, the movable block 14 is positioned in the first annular plate 1, the other end of the guide rod 13 is connected with a push-pull block 15, the push-pull block 15 is positioned on the outer side of the first annular plate 1, the second spring 16 is sleeved on the guide rod 13, the second spring 16 is positioned between the first annular plate 1 and the push-pull block 15, the top of the first annular plate 1 is connected with an insertion rod 17, the second annular plate 18 is positioned above the first annular plate 1, the second, the inserted bar 17 is connected with the second annular plate 18 in a sliding mode, the third spring 19 is sleeved on the inserted bar 17, the third spring 19 is located between the first annular plate 1 and the second annular plate 18, the bottom of the second annular plate 18 is connected with the inclined plate 20, the inclined plate 20 is located on the outer side of the first annular plate 1, the push-pull block 15 is provided with an inclined hole 151 which penetrates through the inclined plate 20 from top to bottom, the inclined plate 20 is located in the inclined hole 151, the inclined plate 20 is in sliding fit with the inclined hole 151, the upper end of the left inclined side wall of the wedge-shaped plate 11 is provided with the small clamping groove 111, and the small clamping groove 111 is matched with.

Example 2

The spring support is characterized by further comprising an annular slide rail 31, an L-shaped slide block 32, an annular cam 33, a handle 34, a contact wheel 35 and an L-shaped connecting plate 36, wherein the annular slide rail 31 is fixedly sleeved on the upper portion of the support 3, the L-shaped slide block 32 is located on the outer side of the annular slide rail 31, the L-shaped slide block 32 is in sliding connection with the annular slide rail 31, the annular cam 33 is connected to the top of the L-shaped slide block 32, the annular cam 33 is rotatably sleeved on the support 3, the handle 34 is connected to the outer side wall of the annular cam 33, the contact wheel 35 is located above the annular cam 33, the contact wheel 35 is in contact with the annular cam 33, the L-shaped connecting plate 36 is located on the outer side of the first annular plate 1, the L-shaped connecting plate 36 is connected with the first annular plate 1, the L-shaped connecting plate 36 is located below the second spring 16, the contact wheel.

Example 3

The sliding mechanism further comprises a gear ring 41, a large gear 42, a rotating shaft 43, a bearing 44 and a rotating wheel 45, wherein the gear ring 41 is connected to the bottom of the L-shaped slider 32, the annular sliding rail 31 is located in the gear ring 41, the large gear 42 is located below the gear ring 41, the gear ring 41 is meshed with the large gear 42, the large gear 42 is fixedly sleeved on the rotating shaft 43, the right end of the rotating shaft 43 is in interference connection with the bearing 44, the bearing 44 is embedded in the left side wall of the support 3, and the rotating wheel 45 is connected to the left end of the rotating.

When the invention is used, a person firstly puts the bag in the first annular plate 1, and turns the mouth of the bag to the outside, then the person can press the second annular plate 18 downwards, the second annular plate 18 compresses the third spring 19, at the same time, the second annular plate 18 drives the inclined plate 20 to move downwards, the inclined plate 20 slides downwards in the inclined hole 151 and pushes the push-pull block 15 to move inwards, the push-pull block 15 drives the guide rod 13 and the movable block 14 to move inwards and compresses the second spring 16, at this time, the person can hang the folded part of the bag mouth on the movable block 14, then the pressing on the second annular plate 18 is released, under the elastic force of the third spring 19, the second annular plate 18 drives the inclined plate 20 to move upwards and reset, at the same time, the inclined plate 20 drives the push-pull block 15 to move outwards and under the elastic force of the second spring 16, the guide rod 13 drives the movable block 14 to move outwards to reset, and tightly clamps the folded part of the bag opening, so that the opening part of the bag is opened, people can conveniently load grains into the bag at the moment, people do not need to open the bag by other people, labor is saved, people can adjust according to the length of the bag, people can step on the lifting plate 9 by feet at the moment, so that the lifting plate 9 moves downwards, the lifting plate 9 starts to compress the first spring 10, meanwhile, the lifting plate 9 drives the wedge plate 11 to move downwards, the wedge plate 11 pushes the pin rod 6 to move leftwards, the pin rod 6 pushes the plate spring 12 to swing leftwards, the plate spring 12 provides rebound reset assistance for the pin rod 6, at the moment, the pin rod 6 moves leftwards from the second pin hole 401 and the first pin hole 303 and is clamped in the small clamping groove 111 by the pin rod 6, so that the pin rod 6 is fixed, at the moment, people can lift the support 3 upwards, thereby drive the sack and adjust, the back is accomplished in the adjustment, people shift out pin rod 6 from little draw-in groove 111 again, and under the spring action of first spring 10, make lifter plate 9 and wedge 11 upward movement reset, simultaneously under the spring action of leaf spring 12, pin rod 6 moves right and resets, and insert pin rod 6 back to in second pinhole 401 and corresponding first pinhole 303, can fix support 3, adjustment convenient and fast, after finishing to sack dress grain, and when needing to tie the sack, people can drive the sack through first annular plate 1 and movable block 14 and rock from top to bottom, movable rod 2 can slide in first jack 301, thereby grain to the sack shakes, make grain more real, provide the space for binding, high durability and convenient use.

People can hold handle 34 this moment, and drive annular cam 33 through handle 34 and rotate, annular cam 33 drives L shape slider 32 and rotates, annular slide rail 31 provides the slip assistance for L shape slider 32, annular cam 33 promotes contact wheel 35 and moves simultaneously, thereby contact wheel 35 carries out the up-and-down motion, thereby contact wheel 35 drives L shape connecting plate 36 and carries out the up-and-down motion, thereby L shape connecting plate 36 drives first annular plate 1 and carries out the up-and-down motion, thereby rock the sack that is equipped with grain from top to bottom, it is more convenient to rock the operation.

People can rotate swiveling wheel 45 this moment, thereby swiveling wheel 45 drives rotation axis 43 and rotates, and bearing 44 provides rotation for rotation axis 43 and assists, thereby rotation axis 43 drives gear wheel 42 and rotates, thereby gear wheel 42 drives ring gear 41 and rotates, thereby ring gear 41 drives L shape slider 32 and rotates, operates convenient and fast more, labour saving and time saving.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A supporting frame for grain bagging comprises a first annular plate (1), a movable rod (2), a support (3), a supporting rod (4), a base (5), a pin rod (6), a guide sleeve (7) and a supporting rod (8), wherein the bottom of the first annular plate (1) is connected with the movable rod (2), the support (3) is positioned below the first annular plate (1), the top of the support (3) is provided with a first jack (301) extending downwards, the movable rod (2) is slidably positioned in the first jack (301), the bottom of the support (3) is provided with a second jack (302) extending upwards, the supporting rod (4) is positioned in the second jack (302), the supporting rod (4) is slidably connected with the support (3), the lower end of the supporting rod (4) is connected with the top of the base (5), the lower end of the support (3) is contacted with the top of the base (5), the lower part of the support (3) is uniformly provided with a plurality of first pin holes (303), the upper portion of bracing piece (4) is opened there is second pinhole (401), second pinhole (401) are corresponding with first pinhole (303), pin rod (6) slidingtype is located first pinhole (303) and second pinhole (401), wedge groove (601) that run through from top to bottom are opened to pin rod (6), pin rod (6) slidingtype is located uide bushing (7), uide bushing (7) are located the left side of support (3), the bottom of uide bushing (7) is connected with branch (8), the lower extreme of branch (8) is connected with the top of base (5), its characterized in that: the lifting device is characterized by further comprising a lifting plate (9), a first spring (10), a wedge-shaped plate (11), a plate spring (12), a guide rod (13), a movable block (14), a push-pull block (15), a second spring (16), an inserted rod (17), a second annular plate (18), a third spring (19) and an inclined plate (20), wherein the lifting plate (9) is positioned between the base (5) and the guide sleeve (7), the lifting plate (9) is provided with a movable hole (901) which penetrates through the lifting plate up and down, the support rod (8) is positioned in the movable hole (901), the support rod (8) is in sliding connection with the lifting plate (9), the first spring (10) is sleeved on the support rod (8), the first spring (10) is positioned between the base (5) and the lifting plate (9), the top of the lifting plate (9) is connected with the wedge-shaped plate (11), the wedge-shaped plate (11) is positioned on the left side of the guide sleeve (7), and the wedge-shaped plate, the wedge-shaped plate (11) is in sliding fit with the wedge-shaped groove (601), the plate spring (12) is located on the left side of the pin rod (6), the plate spring (12) is in contact with the pin rod (6), the lower end of the plate spring (12) is connected with the top of the base (5), the first annular plate (1) is provided with a guide hole (101) which penetrates through the left side and the right side, the guide rod (13) is in sliding located in the guide hole (101), one end of the guide rod (13) is connected with a movable block (14), the movable block (14) is located in the first annular plate (1), the other end of the guide rod (13) is connected with a push-pull block (15), the push-pull block (15) is located on the outer side of the first annular plate (1), the second spring (16) is sleeved on the guide rod (13), the second spring (16) is located between the first annular plate (1) and the push-pull block (15), the top of the first annular plate (1) is connected with an insertion rod (17), and the second annular plate (18, second annular plate (18) is opened has big jack (181) that runs through from top to bottom, inserted bar (17) are located big jack (181), inserted bar (17) and second annular plate (18) sliding connection, third spring (19) cover is on inserted bar (17), third spring (19) are located between first annular plate (1) and second annular plate (18), the bottom of second annular plate (18) is connected with swash plate (20), swash plate (20) are located the outside of first annular plate (1), push and pull piece (15) are opened inclined hole (151) that run through from top to bottom, swash plate (20) are located inclined hole (151), swash plate (20) and inclined hole (151) sliding fit, the upper end of the oblique lateral wall in the left side of wedge plate (11) is opened has little draw-in groove (111), little draw-in groove (111) cooperate with wedge groove (601).

2. A support frame for grain bagging according to claim 1, wherein: the spring device is characterized by further comprising an annular sliding rail (31), an L-shaped sliding block (32), an annular cam (33), a handle (34), a contact wheel (35) and an L-shaped connecting plate (36), wherein the annular sliding rail (31) is fixedly sleeved on the upper portion of the support (3), the L-shaped sliding block (32) is positioned on the outer side of the annular sliding rail (31), the L-shaped sliding block (32) is in sliding connection with the annular sliding rail (31), the top of the L-shaped sliding block (32) is connected with the annular cam (33), the annular cam (33) is rotatably sleeved on the support (3), the outer side wall of the annular cam (33) is connected with the handle (34), the contact wheel (35) is positioned above the annular cam (33), the contact wheel (35) is in contact with the annular cam (33), the L-shaped connecting plate (36) is positioned on the outer side of the first annular plate (1), the L-shaped connecting plate (36) is connected with the first annular plate (1), and the L-, the contact wheel (35) is positioned between the L-shaped connecting plate (36) and the support (3), and the lower end of the L-shaped connecting plate (36) is rotatably connected with the contact wheel (35).

3. A support frame for grain bagging according to claim 2, wherein: still including ring gear (41), gear wheel (42), rotation axis (43), bearing (44) and swiveling wheel (45), the bottom of L shape slider (32) is connected with ring gear (41), annular slide rail (31) are located ring gear (41), gear wheel (42) are located the below of ring gear (41), ring gear (41) mesh with gear wheel (42), gear wheel (42) fixed cover is on rotation axis (43), the right-hand member and bearing (44) interference of rotation axis (43) are connected, bearing (44) are inlayed and are established in the left side wall of support (3), the left end of rotation axis (43) is connected with swiveling wheel (45).