阅读说明：本技术 一种可自由调节的密集架 (Movable rack capable of being freely adjusted ) 是由 聂胜 于 2021-09-03 设计创作，主要内容包括：本发明涉及一种密集架,尤其涉及一种可自由调节的密集架。需要设计一种方便人们对密集架进行调节,不具有危险性,且可对文件或物品进行遮挡限位的可自由调节的密集架。一种可自由调节的密集架,包括有：底座,底座上设有安装架；支撑杆,支撑杆对称安装在底座上；空心杆,空心杆对称式安装在底座上。本发明扭动转动架正转带动六边形套管正转,活塞也就向后移动使得液压油通过胶管排入液压泵内,进而底板依次间歇向上移动,相邻两个底板之间距离增大,即可将文件或物品放置在本装置上,同时,也可根据自身需求夹板和隔板至合适位置,如此,可方便人们对密集架进行调节,不具有危险性。(The invention relates to a compact shelf, in particular to a freely adjustable compact shelf. The compact shelf which is convenient for people to adjust, has no danger, can shield and limit files or articles and can be freely adjusted is needed to be designed. A freely adjustable compact shelf comprises: the base is provided with a mounting frame; the supporting rods are symmetrically arranged on the base; the hollow rod is symmetrically arranged on the base. According to the invention, the rotating frame is twisted to rotate positively to drive the hexagonal sleeve to rotate positively, the piston moves backwards to enable hydraulic oil to be discharged into the hydraulic pump through the rubber pipe, the bottom plates move upwards intermittently in sequence, the distance between every two adjacent bottom plates is increased, documents or articles can be placed on the device, and meanwhile, the clamping plates and the partition plates can be moved to proper positions according to the requirements of people, so that people can conveniently adjust the compact shelf, and the compact shelf is free from danger.)

1. A movable rack capable of being freely adjusted is characterized by comprising:

the device comprises a base (1), wherein a mounting rack (2) is arranged on the base (1);

the supporting rods (3), the supporting rods (3) are symmetrically arranged on the base (1);

the hollow rod (31), the hollow rod (31) is symmetrically installed on the base (1);

the bottom plate (4), the bottom plate (4) is installed between two hollow rods (31) in a sliding mode at intervals;

the lifting device (5) is arranged between the mounting rack (2) and the bottom plate (4) and is used for driving the bottom plate (4) to move;

and the moving device (6) is arranged on the bottom plate (4) and is used for adjusting the storage space.

2. Compact shelf according to claim 1, characterised in that the lifting means (5) comprise:

the barrel (51), the barrel (51) is installed on the mounting rack (2);

the hollow threaded pipe (53), the hollow threaded pipe (53) is installed on the round barrel (51);

the piston (52), the piston (52) is slidably mounted on the hollow threaded pipe (53);

the screw block (54), the screw block (54) is connected to the hollow threaded pipe (53) in a screw thread mode, the screw block (54) is fixedly connected with the piston (52);

the hexagonal column (55), the hexagonal column (55) is installed on the thread block (54);

the hexagonal sleeve (56), the hexagonal sleeve (56) is installed on the hexagonal column (55) in a sliding way;

the rotating frame (57), the rotating frame (57) is installed on the hexagonal sleeve (56);

the hydraulic pump (59), the hydraulic pump (59) is installed between two adjacent bottom plates (4);

and the rubber pipe (58), wherein the rubber pipe (58) is arranged between the hydraulic pump (59) and the barrel (51).

3. A freely adjustable compact shelving as claimed in claim 2, characterized in that the moving means (6) comprise:

the first sliding grooves (65), the first sliding grooves (65) are symmetrically formed in the bottom plate (4);

the second sliding grooves (68), the second sliding grooves (68) are symmetrically formed in the bottom plate (4);

the sliding blocks (67), the sliding blocks (67) are installed in the second sliding grooves (68) at intervals in a sliding manner;

the second connecting shaft (66) is rotatably arranged between the two corresponding sliding blocks (67);

a partition plate (62), the partition plate (62) being mounted on the second connecting shaft (66);

the pulleys (63), the pulleys (63) are installed on the first sliding groove (65) in a sliding mode at intervals;

the first connecting rod (64), the first connecting rod (64) is installed on the pulley (63);

the clamping plate (61) is installed between the two first connecting rods (64), the clamping plate (61) is sleeved on the partition plate (62), and the clamping plate (61) is in sliding fit with the partition plate (62).

4. A freely adjustable compact shelving as claimed in claim 3, further comprising a sliding means (7), the sliding means (7) comprising:

the baffle plates (71) with grooves are symmetrically and slidably arranged between the bottom plates (4);

the sliding plates (72), the sliding plates (72) are symmetrically and slidably arranged between the bottom plates (4);

a round rod (73), wherein the round rod (73) is arranged on the sliding plate (72);

the fixed frame (75), the fixed frame (75) is symmetrically installed on the sliding plate (72);

the rubber wheel (76), the rubber wheel (76) is installed on the fixed mount (75) symmetrically and rotatably;

the third sliding chute (74), the third sliding chute (74) is opened on the slotted baffle (71) symmetrically, the rubber wheel (76) is located in the third sliding chute (74), and the rubber wheel (76) is in sliding fit with the third sliding chute (74).

5. Compact shelf according to claim 4, characterized in that it further comprises an extension device (8), the extension device (8) comprising:

the handles (81), the handles (81) are arranged on the rotating frame (57) in a sliding mode at intervals;

a first spring (82), the first spring (82) being installed between the handle (81) and the rotating frame (57);

the L-shaped hook (83), the L-shaped hook (83) is arranged on the handle (81);

the ejector rod (86), the ejector rod (86) is installed on the rotating frame (57) in a sliding way;

the round block (84) with the groove is arranged on the mandril (86), and the round block (84) with the groove is matched with the L-shaped hook (83);

and the second spring (85), and the second spring (85) is installed between the slotted round block (84) and the rotating frame (57).

6. Compact shelf according to claim 5, characterized in that it further comprises a blocking device (9), the blocking device (9) comprising:

the fixing rod (91), the fixing rod (91) is installed on the hollow rod (31) in a sliding mode;

the third springs (95), the third springs (95) are installed on the hollow rod (31) at intervals;

the U-shaped frame (94), the U-shaped frame (94) is installed on the tail end of the third spring (95);

the sliding rods (93), the sliding rods (93) are symmetrically and slidably mounted on the U-shaped frame (94);

the semicircular block (92), the semicircular block (92) is installed on the sliding rod (93);

the fourth sliding groove (96) is arranged on the fixing rod (91) at intervals, the sliding rod (93) is located in the fourth sliding groove (96), and the sliding rod (93) is in sliding fit with the fourth sliding groove (96).

7. A freely adjustable compact shelving as claimed in claim 6, further comprising a locking device (10), the locking device (10) comprising:

the rectangular block (101), the rectangular block (101) is symmetrically and slidably mounted on the bottom plate (4);

the threaded rod (102), the threaded rod (102) is symmetrically and rotatably installed on the bottom plate (4), and the threaded rod (102) is in threaded connection with the rectangular block (101);

the knob (103), knob (103) are installed on threaded rod (102).

8. Compact shelf according to claim 7, characterized in that it further comprises a stop device (11), the stop device (11) comprising:

the rotating shaft (112), the rotating shaft (112) is installed on the mounting rack (2) in a rotating mode;

the handle (111), the handle (111) is installed on the rotating shaft (112);

and the L-shaped blocks (113), and the L-shaped blocks (113) are symmetrically arranged on the rotating shaft (112).

Technical Field

The invention relates to a compact shelf, in particular to a freely adjustable compact shelf.

Background

The compact shelf is generally used for storing important files or articles and the like, saves space and is convenient to manage. At present, because the existing compact shelving is single in structure fixation and cannot be adjusted, if articles at a high position need to be taken or returned, the articles need to be taken by looking for ladders, chairs and other foot pads and climb up, the existing compact shelving is quite troublesome and has certain dangerousness, and documents or articles are placed in the compact shelving, and the documents or the articles are easy to fall off if people accidentally hit the compact shelving by mistake.

How to design a convenient people to adjust compact shelf, do not have danger, and can shelter from spacing but the compact shelf of free regulation to file or article to solve prior art problem.

Disclosure of Invention

In order to overcome the defects that the things needing to be found on the foot pads of ladders, chairs and the like climb up to take documents or articles, are quite troublesome and have certain dangerousness, and the documents or the articles fall off due to careless mistaken touch on the compact shelf, the invention has the technical problems that: the movable rack is convenient for people to adjust the movable rack, is not dangerous, and can shield and limit files or articles.

The technical implementation scheme of the invention is as follows: a freely adjustable compact shelf comprises: the base is provided with a mounting frame; the supporting rods are symmetrically arranged on the base; the hollow rods are symmetrically arranged on the base; the bottom plate is arranged between the two hollow rods at intervals in a sliding manner; the lifting device is arranged between the mounting rack and the bottom plate and is used for driving the bottom plate to move; and the moving device is arranged on the bottom plate and used for adjusting the storage space.

Preferably, the lifting device includes: the barrel is arranged on the mounting frame; the hollow threaded pipe is arranged on the barrel; the piston is slidably arranged on the hollow threaded pipe; the thread block is in threaded connection with the hollow threaded pipe and is fixedly connected with the piston; the hexagonal column is arranged on the thread block; the hexagonal sleeve is slidably mounted on the hexagonal column; the rotating frame is arranged on the hexagonal sleeve; the hydraulic pump is arranged between the two adjacent bottom plates; and the rubber tube is arranged between the hydraulic pump and the barrel.

Preferably, the mobile device comprises: the first sliding chutes are symmetrically arranged on the bottom plate; the second sliding grooves are symmetrically formed in the bottom plate; the sliding blocks are arranged in the second sliding grooves at intervals in a sliding manner; the second connecting shaft is rotatably arranged between the two corresponding sliding blocks; the partition plate is arranged on the second connecting shaft; the pulleys are arranged on the first sliding groove in a sliding mode at intervals; the first connecting rod is arranged on the pulley; the clamping plates are arranged between the two first connecting rods and sleeved on the partition plates in a sliding fit mode.

Preferably, the device further comprises a sliding device, and the sliding device comprises: the baffle plates with grooves are symmetrically and slidably arranged between the bottom plates; the sliding plates are symmetrically and slidably arranged between the bottom plates; the round rod is arranged on the sliding plate; the fixed frames are symmetrically arranged on the sliding plate; the rubber wheels are symmetrically and rotatably arranged on the fixed frame; the third chute is symmetrically arranged on the baffle plate with the chute, the rubber wheel is positioned in the third chute, and the rubber wheel is in sliding fit with the third chute.

Preferably, the device further comprises an extension device, and the extension device comprises: the handles are arranged on the rotating frame in a sliding mode at intervals; the first spring is arranged between the handle and the rotating frame; the L-shaped hook is arranged on the handle; the ejector rod is arranged on the rotating frame in a sliding manner; the round block with the groove is arranged on the ejector rod and matched with the L-shaped hook; and the second spring is arranged between the grooved round block and the rotating frame.

Preferably, the device further comprises a clamping device, and the clamping device comprises: the fixed rod is slidably mounted on the hollow rod; the third springs are arranged on the hollow rod at intervals; the U-shaped frame is arranged on the tail end of the third spring; the sliding rods are symmetrically and slidably arranged on the U-shaped frame; the semicircular block is arranged on the sliding rod; the fourth sliding chute is arranged on the fixed rod at intervals, the sliding rod is positioned in the fourth sliding chute, and the sliding rod is in sliding fit with the fourth sliding chute.

Preferably, the locking device is further included, and the locking device includes: the rectangular blocks are symmetrically and slidably arranged on the bottom plate; the threaded rod is symmetrically and rotatably arranged on the bottom plate and is in threaded connection with the rectangular block; the knob, the knob is installed on the threaded rod.

Preferably, the device also comprises a limiting device, and the limiting device comprises: the rotating shaft is rotatably arranged on the mounting frame; the handle is arranged on the rotating shaft; and the L-shaped blocks are symmetrically arranged on the rotating shaft.

The beneficial effects are that:

1. according to the invention, the rotating frame is twisted to rotate positively to drive the hexagonal sleeve to rotate positively, the piston moves backwards to enable hydraulic oil to be discharged into the hydraulic pump through the rubber pipe, the bottom plates move upwards intermittently in sequence, the distance between every two adjacent bottom plates is increased, documents or articles can be placed on the device, and meanwhile, the clamping plates and the partition plates can be moved to proper positions according to the requirements of people, so that people can conveniently adjust the compact shelf, and the compact shelf is free from danger.

2. Under the action of the extension device, the round block with the groove moves backwards to stop limiting the L-shaped hook, the handle moves outwards to reset under the action of the first spring, and people can pull the rotating frame to rotate through the handle, so that the rotating frame can be conveniently pulled by people, and the labor is saved.

3. According to the invention, under the locking device, the threaded rod rotates forwards to drive the rectangular block to move inwards, the rectangular block moves inwards to limit the pulley, and the partition plate is limited, so that the partition plate can be prevented from being deviated.

Drawings

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

Fig. 2 is a schematic perspective view of the back surface of the present invention.

Fig. 3 is a schematic perspective view of a first lifting device according to the present invention.

Fig. 4 is a schematic perspective view of a second lifting device according to the present invention.

Fig. 5 is a schematic perspective view of a third embodiment of the lifting device of the present invention.

Fig. 6 is an enlarged schematic perspective view of part a of the lifting device of the present invention.

Fig. 7 is a schematic perspective view of a mobile device according to a first embodiment of the present invention.

Fig. 8 is a schematic perspective view of a second mobile device according to the present invention.

Fig. 9 is an enlarged perspective view of part B of the mobile device according to the present invention.

Fig. 10 is a perspective view of the sliding device of the present invention.

Fig. 11 is an enlarged perspective view of part C of the sliding device of the present invention.

Fig. 12 is a schematic perspective view of an extension device according to the present invention.

Fig. 13 is an enlarged perspective view of the portion D of the extension device of the present invention.

Fig. 14 is a schematic perspective view of the locking device of the present invention.

Fig. 15 is an enlarged schematic perspective view of part E of the locking device of the present invention.

Fig. 16 is a perspective view of the locking device of the present invention.

Fig. 17 is an enlarged perspective view of part F of the locking device of the present invention.

Fig. 18 is a schematic perspective view of the spacing device of the present invention.

The parts are labeled as follows: 1-base, 2-mounting frame, 3-supporting rod, 31-hollow rod, 4-base plate, 5-lifting device, 51-round barrel, 52-piston, 53-hollow threaded pipe, 54-threaded block, 55-hexagonal column, 56-hexagonal sleeve, 57-rotating frame, 58-rubber pipe, 59-hydraulic pump, 6-moving device, 61-clamping plate, 62-clapboard, 63-pulley, 64-first connecting rod, 65-first chute, 66-second connecting shaft, 67-sliding block, 68-second chute, 7-sliding device, 71-grooved baffle, 72-sliding plate, 73-round rod, 74-third chute, 75-fixing frame, 76-rubber wheel, 8-lengthening device, 81-handle, 82-first spring, 83-L-shaped hook, 84-grooved round block, 85-second spring, 86-ejector rod, 9-clamping device, 91-fixed rod, 92-semicircular block, 93-sliding rod, 94-U-shaped frame, 95-third spring, 96-fourth sliding groove, 10-locking device, 101-rectangular block, 102-threaded rod, 103-knob, 11-limiting device, 111-handle, 112-rotating shaft and 113-L-shaped block.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Example 1

The utility model provides a can be adjusted freely intensive, as shown in fig. 1-9, including base 1, mounting bracket 2, bracing piece 3, hollow rod 31, bottom plate 4, elevating gear 5 and mobile device 6, the inboard rigid coupling in base 1 top has mounting bracket 2, the rigid coupling all has bracing piece 3 in the 1 top left and right sides of base, the rigid coupling all has hollow rod 31 in the 1 top left and right sides of base, even interval slidingtype is equipped with bottom plate 4 between the hollow rod 31, be equipped with elevating gear 5 between mounting bracket 2 and the bottom plate 4, be equipped with mobile device 6 on the bottom plate 4.

Lifting device 5 is including cask 51, piston 52, hollow screwed pipe 53, screw block 54, hexagon post 55, hexagon sleeve pipe 56, rotating turret 57, rubber tube 58 and hydraulic pump 59, mounting bracket 2 rear portion is equipped with cask 51, cask 51 front portion is equipped with hollow screwed pipe 53, hollow screwed pipe 53 internal sliding type is equipped with piston 52, the anterior screw thread formula of hollow screwed pipe 53 is connected with screw block 54, screw block 54 and piston 52 fixed connection, screw block 54 leading flank rigid coupling has hexagon post 55, the slip formula is equipped with hexagon sleeve pipe 56 on hexagon post 55, the anterior rigid coupling of hexagon sleeve pipe 56 has rotating turret 57, be equipped with two hydraulic pumps 59 between two adjacent bottom plates 4, be equipped with rubber tube 58 between hydraulic pump 59 and the cask 51.

The moving device 6 comprises a clamping plate 61, a partition plate 62, a pulley 63, a first connecting rod 64, a second connecting shaft 66 and a sliding block 67, first sliding grooves 65 are formed in the front side and the rear side of the bottom plate 4, second sliding grooves 68 are formed in the front side and the rear side of the bottom plate 4, the second sliding grooves 68 are located on the lower side of the first sliding grooves 65, sliding blocks 67 are arranged in the second sliding grooves 68 in a sliding mode at intervals, the second connecting shaft 66 is arranged between the lower portions of the sliding blocks 67 on the front side and the rear side correspondingly in a rotating mode, the partition plate 62 is fixedly connected to the middle of the second connecting shaft 66, the pulley 63 is arranged in the first sliding grooves 65 in a sliding mode at intervals, the first connecting rod 64 is fixedly connected to the inner side face of the pulley 63, the clamping plate 61 is arranged between the inner ends of the first connecting rods 64 on the front side and the rear side correspondingly, the clamping plate 61 is sleeved on the partition plate 62, and the clamping plate 61 is in sliding fit with the partition plate 62.

Initially, a proper amount of hydraulic oil is filled in the barrel 51, when people use the device, firstly, the rotating frame 57 is twisted to rotate positively to drive the hexagonal sleeve 56 to rotate positively, the hexagonal sleeve 56 rotates positively to drive the hexagonal column 55 to rotate positively, the hexagonal column 55 rotates positively to drive the thread block 54 to rotate positively and move backwards, the thread block 54 moves backwards to drive the piston 52 to move backwards, the piston 52 moves backwards to enable the hydraulic oil to be discharged into the hydraulic pump 59 through the rubber tube 58, then the bottom plates 4 move upwards intermittently in sequence, the distance between every two adjacent bottom plates 4 is increased, files or articles can be placed on the device, when the bottom plates 4 move upwards intermittently in sequence, the clamping plate 61 moves adaptively in the clamping plate 62, meanwhile, people can adjust the clamping plate 62 to a proper position through the rollers according to self requirements, also can adjust the clamping plate 61 to a proper position through the sliding block 67, when the device is not needed, the twisting rotary frame 57 is reversely rotated and reset, and the bottom plate 4 is sequentially moved downwards and reset.

Example 2

Based on embodiment 1, as shown in fig. 3, 10, 11, 12, 13, 14 and 15, the present invention further includes a sliding device 7, the sliding device 7 includes a slotted baffle 71, sliding plates 72, a round bar 73, a fixing frame 75 and rubber wheels 76, the slotted baffle 71 is arranged between the bottom plates 4 in a bilaterally symmetrical sliding manner, the sliding plates 72 are arranged between the bottom plates 4 in a bilaterally symmetrical sliding manner, the round bar 73 is arranged on the upper portion of the sliding plates 72, two third sliding slots 74 are formed on the slotted baffle 71, the fixing frame 75 is fixedly connected to the lower portion of the outer side surface of the sliding plates 72 in a front-back symmetrical manner, two rubber wheels 76 are rotatably arranged outside the fixing frame 75, the rubber wheels 76 are located in the third sliding slots 74, and the rubber wheels 76 are in sliding fit with the third sliding slots 74.

Still including extension fixture 8, extension fixture 8 is including handle 81, first spring 82, L shape colludes 83, grooved circle piece 84, second spring 85 and ejector pin 86, interval slidingtype is equipped with handle 81 in the rotating turret 57, first spring 82 has been connect around between rotating turret 57 medial surface and the handle 81 inboard, handle 81 inner rigid coupling has L shape to collude 83, rotating turret 57 middle part slidingtype is equipped with ejector pin 86, ejector pin 86 rear end rigid coupling has grooved circle piece 84, grooved circle piece 84 colludes 83 cooperation with L shape, be equipped with second spring 85 between grooved circle piece 84 rear flank and the rotating turret 57 medial surface.

Still including screens device 9, screens device 9 is including dead lever 91, semicircle piece 92, slide bar 93, U-shaped frame 94 and third spring 95, the slidingtype dead lever 91 that is equipped with in hollow rod 31, the upper portion interval is equipped with third spring 95 in the hollow rod 31, third spring 95 tail end rigid coupling has U-shaped frame 94, the U-shaped frame 94 left and right sides all slidingtype is equipped with slide bar 93, slide bar 93 outer end rigid coupling has semicircle piece 92, dead lever 91 upper portion interval is opened fourth spout 96, the inboard fourth spout 96 that is located of slide bar 93, slide bar 93 and fourth spout 96 sliding fit.

When wrench movement rotating turret 57 corotation, bottom plate 4 intermittent type rebound in proper order, the top bottom plate 4 rebound drives round bar 73 rebound, round bar 73 rebound drives sliding plate 72 rebound, rubber wheel 76 plays the guide effect, and then sliding plate 72 cooperation trough of belt baffle 71 is spacing to bottom plate 4, when need not to use this device, wrench movement rotating turret 57 reversal resets, bottom plate 4 just also rebound in proper order resets, because of the effect of gravity, sliding plate 72 just also drives round bar 73 rebound and resets, so, can avoid file or article to produce and drop.

Initially, the first spring 82 is in a compressed state, when a person needs to pull the rotating frame 57, the push rod 86 can be pressed to move backwards, the push rod 86 moves backwards to drive the grooved round block 84 to move backwards, the second spring 85 is compressed, the grooved round block 84 moves backwards to stop limiting the L-shaped hook 83, the handle 81 moves outwards to reset under the action of the first spring 82, the push rod 86 is released, the push rod 86 drives the grooved round block 84 to move forwards to reset under the action of the second spring 85, the person can pull the rotating frame 57 to rotate through the handle 81, when the device is not needed, the handle 81 is pulled to drive the L-shaped hook 83 to move inwards, the first spring 82 is compressed, the L-shaped hook 83 moves inwards to contact with the grooved round block 84, the L-shaped hook 83 slides over the grooved round block 84 under the action of the second spring 85, the grooved round block 84 limits the L-shaped hook 83, and thus, the person can pull the rotating frame 57 conveniently, and saves more labor.

When the top bottom plate 4 upwards moves, the top bottom plate 4 upwards moves and contacts with the fixed rod 91, the top bottom plate 4 drives the fixed rod 91 upwards to move, the fixed rod 91 upwards moves to enable the slide rod 93 to move to the lower side of the fourth chute 96, the slide rod 93 also drives the semicircular block 92 to outwards move, the third spring 95 plays a role in buffering, the semicircular block 92 outwards moves to open the hollow rod 31, the bottom plate 4 is also limited, when the device is not needed, the top bottom plate 4 downwards moves and is separated from the fixed rod 91, the fourth chute 96 enables the slide rod 93 to inwards move to reset, the semicircular block 92 also inwards moves to reset, and therefore, the bottom plate 4 can be prevented from generating deviation.

Example 3

On the basis of the embodiment 1 and the embodiment 2, as shown in fig. 16 to fig. 18, the locking device 10 is further included, the locking device 10 includes a rectangular block 101, a threaded rod 102 and a knob 103, the rectangular block 101 is slidably disposed on the front side and the rear side of the bottom plate 4, the threaded rod 102 is rotatably disposed in the middle of the front side and the rear side of the bottom plate 4, the threaded rod 102 is in threaded connection with the rectangular block 101, and the knob 103 is fixedly connected to the outer end of the threaded rod 102.

The device is characterized by further comprising a limiting device 11, wherein the limiting device 11 comprises a handle 111, a rotating shaft 112 and L-shaped blocks 113, the rotating shaft 112 is rotatably arranged on the lower side of the front portion of the mounting frame 2, the L-shaped blocks 113 are fixedly connected to the left side and the right side of the rotating shaft 112, and the handle 111 is fixedly connected to the right portion of the rotating shaft 112.

When people adjust baffle 62 to suitable position, accessible knob 103 wrench movement threaded rod 102 corotation, and threaded rod 102 corotation drives rectangular block 101 and inwards moves, and rectangular block 101 inwards moves and carries on spacingly to pulley 63, and baffle 62 also is spacing, and when needing to adjust baffle 62, through knob 103 wrench movement threaded rod 102 reversal, rectangular block 101 also outwards moves and resets, so, can avoid baffle 62 to produce the skew.

When people use the device, the handle 111 can be pulled to swing forwards, the handle 111 swings forwards to drive the rotating shaft 112 to rotate reversely, the rotating shaft 112 rotates reversely to drive the L-shaped block 113 to swing forwards, the L-shaped block 113 swings forwards to be in contact with the rotating frame 57, the L-shaped block 113 limits the rotating frame 57, when the device is not needed, the handle 111 is pulled to swing backwards to reset, the L-shaped block 113 also swings backwards to reset, and therefore the rotating frame 57 can be prevented from rebounding.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.