阅读说明：本技术 一种自限位防止滑走的伸缩式拉杆箱万向轮 (Self-limiting sliding-away-preventing telescopic draw-bar box universal wheel ) 是由 刘启俊 于 2021-01-04 设计创作，主要内容包括：本发明涉及万向轮技术领域,且公开了一种自限位防止滑走的伸缩式拉杆箱万向轮,包括箱体,所述箱体底端的左右两侧弹性连接有卡块一,所述箱体的顶部活动连接有推架,所述推架的底端固定连接有齿条,所述齿条的底端固定连接有卡块二,所述齿条的齿端通过半齿轮传动连接有支架。该自限位防止滑走的伸缩式拉杆箱万向轮,通过推动推架使齿条下移,基于半齿轮传动使支架转出,达到便于伸缩万向轮的效果,箱体静止时,通过止动弹簧弹力使箱体四周的转轮方向全部对中,限制箱体的移动,同时转盘受磁力作用转动,定位杆伸出卡进定位槽内部,限制转轮转动,达到对中式锁定转动轮的效果,防止箱体在倾斜平面移动。(The invention relates to the technical field of universal wheels and discloses a self-limiting sliding-away-preventing telescopic trolley case universal wheel which comprises a case body, wherein the left side and the right side of the bottom end of the case body are elastically connected with a first clamping block, the top of the case body is movably connected with a push frame, the bottom end of the push frame is fixedly connected with a rack, the bottom end of the rack is fixedly connected with a second clamping block, and the tooth end of the rack is connected with a support through half gear transmission. This prevent telescopic draw-bar box universal wheel that slides away from spacing, it makes the rack move down to push away the frame through promoting, make the support roll out based on semi-gear drive, reach the effect of the flexible universal wheel of being convenient for, when the box is static, make the whole centering of box runner direction all around through locking spring elasticity, the removal of restriction box, the carousel is rotated by magnetic force simultaneously, the locating lever stretches out inside the card advances the constant head tank, the restriction runner rotates, reach the effect that centering formula locking rotated the wheel, prevent that the box from removing at the inclined plane.)

1. The utility model provides a prevent telescopic draw-bar box universal wheel that slides away from spacing, includes box (1), its characterized in that: the left side and the right side of the bottom end of the box body (1) are elastically connected with a first fixture block (2), the top of the box body (1) is movably connected with a pushing frame (3), the bottom of the pushing frame (3) is fixedly connected with a rack (4), the bottom of the rack (4) is fixedly connected with a second fixture block (5), the tooth end of the rack (4) is in transmission connection with a support (7) through a half gear (6), the inside of the support (7) is rotatably connected with a first rotating shaft (8), the inside of the first rotating shaft (8) is elastically connected with a second rotating shaft (10) through a stop spring (9), the periphery of the second rotating shaft (10) is fixedly connected with a limiting block (11), one end of the support (7), far away from the half gear (6), is fixedly connected with a first fixing block (12), the inside of the fixing block (12) is movably connected with a support rod (13), one end of the second rotating shaft, the utility model discloses a rotary table, including revolving rack (14), arc groove (17) have been seted up to the inside of revolving rack (16), the spacing of arc groove (17) is connected with locating lever (18), the center of revolving rack (16) is rotated and is connected with runner (19), constant head tank (20) have been seted up to the inner wall of runner (19), the inner wall fixedly connected with electro-magnet (21) of revolving rack (14), the one end fixedly connected with magnet group (22) that the periphery of carousel (16) is close electro-magnet (21), the other end of revolving rack (14) is rotated and is connected with carousel (16), arc groove (17) have been seted up to the inside of carousel (16), the spacing connection of arc.

2. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: the inside cavity of box (1), the inside swing joint of box (1) bottom has fixture block (2), push away about frame (3) both ends bottom fixedly connected with rack (4), push away the periphery of frame (3) spacing connection at box (1).

3. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: the rack (4) is connected inside the box body (1) in a limiting mode, a half gear (6) is connected to the tooth end of the rack (4) in a meshed mode, the half gear (6) and the support (7) are located on the same rotation axis, and the periphery of the second clamping block (5) is matched with the outer portion of the first clamping block (2).

4. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: support (7) rotate to be connected in the bottom of box (1), stopper (11) divide into two sets ofly, and a set of fixed connection is in the inner wall of pivot one (8), and another group's fixed connection is in the periphery of pivot two (10), the inside at revolving rack (14) is kept away from in pivot one (8) one end spacing connection of semi-gear (6).

5. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: the inner part of the fixed block (12) is elastically connected with a resisting rod (13), the center of the rotating frame (14) is rotatably connected with a rotating disc (16), the arc grooves (17) are rotationally and symmetrically distributed on the rotating disc (16), and the inner part of the arc grooves (17) is movably connected with a positioning rod (18).

6. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: the end part of the positioning rod (18) is matched with the inside of the positioning groove (20), the positioning rod (18) is connected in the rotating frame (14) in a limiting mode, and the rotating wheel (19) is connected in the rotating frame (14) in a rotating mode.

7. The self-limiting anti-roll telescopic trolley case castor as claimed in claim 1, wherein: the positioning grooves (20) are arranged on the inner wall of the rotating wheel (19) in a rotating and symmetrical mode, the magnetic block groups (22) are divided into two groups, one group is fixedly connected to the periphery of the rotating disc (16), and the other group is fixedly connected to the inner wall of the lower left side of the rotating frame (14).

Technical Field

The invention relates to the technical field of universal wheels, in particular to a self-limiting sliding-away-preventing telescopic trolley case universal wheel.

Background

The universal wheels are so-called movable caster wheels, not only can move in the front-back direction, but also can rotate 360 degrees in the horizontal direction, thereby controlling the moving direction, the most common universal wheels in life are the universal wheels of the luggage case, because the universal wheels protrude out of the luggage case body, the existing luggage case universal wheel structure does not have a telescopic function, in the carrying process, the universal wheels are easy to touch obstacles to damage or drop, and the luggage case is not held, because of the flexibility of the universal wheels, when meeting an inclined ground, the luggage case can roll easily to keep away from a user, the luggage case needs to be placed transversely to prevent the luggage case from moving, and the luggage case is placed on the ground to be very easy to dirty on the surface of the case, thereby influencing the use.

The invention provides a self-limiting sliding-off prevention telescopic draw-bar box universal wheel, which can lead a rack to move downwards by pushing a push frame, lead a bracket to rotate out based on the transmission of a half gear, achieve the effect of facilitating the telescopic universal wheel, protect the universal wheel from being damaged, lead the wheel train directions around a box body to be completely centered based on the elasticity of a stop spring when the box body stops moving, limit the movement of the box body, lead an electromagnet to be communicated with a rotary disc to rotate under the action of magnetic force, lead a positioning rod to extend out of a clamping groove to be clamped in the positioning groove, limit the rotation of the rotary wheel, achieve the effect of locking the rotary wheel in a centering way to prevent the box body from moving in an inclined plane, and improve the practicability of equipment.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the self-limiting sliding-away-preventing telescopic trolley case universal wheel which has the advantages of being convenient for preventing the telescopic universal wheel from being damaged and falling and preventing the case body from moving by itself by locking the rotating wheel in a centering manner, and solves the problems that the universal wheel cannot be stretched and the case body needs to be held by hands or turned over to be stable when the ground is uneven.

(II) technical scheme

In order to realize the purposes of facilitating the telescopic universal wheel to prevent collision and falling and locking the rotating wheel in a centering way to prevent the box body from moving automatically, the invention provides the following technical scheme: a self-limiting sliding-away-preventing telescopic draw-bar box universal wheel comprises a box body, wherein the left side and the right side of the bottom end of the box body are elastically connected with a first clamping block, the top of the box body is movably connected with a push frame, the bottom end of the push frame is fixedly connected with a rack, the bottom end of the rack is fixedly connected with a second clamping block, the tooth end of the rack is connected with a support through half-gear transmission, the interior of the support is rotatably connected with a first rotating shaft, the interior of the first rotating shaft is elastically connected with a second rotating shaft through a stop spring, the periphery of the second rotating shaft is fixedly connected with a limiting block, one end of the support, far away from the half-gear, is fixedly connected with a fixed block, the interior of the fixed block is movably connected with a resisting rod, one end of the second rotating shaft, far away from the half, the arc groove has been seted up to the inside of carousel, the spacing connection in arc groove has the locating lever, the center of carousel rotates and is connected with the runner, the constant head tank has been seted up to the inner wall of runner, the inner wall fixedly connected with electro-magnet of revolving rack, the peripheral one end fixedly connected with magnet group that is close to the electro-magnet of carousel.

Preferably, the box is hollow, a first clamping block is movably connected to the inside of the bottom end of the box, racks are fixedly connected to the bottoms of the left end and the right end of the pushing frame, the pushing frame is connected to the periphery of the box in a limiting mode, and the position of the racks is changed by pushing the pushing frame.

Preferably, the rack is connected to the inside of the box in a limiting mode, a half gear is connected to the tooth end of the rack in a meshed mode, the half gear and the support are located on the same rotation axis, the periphery of the first clamping block is matched with the outer portion of the second clamping block, and the position of the rack is locked through the clamping of the first clamping block and the position of the second clamping block in a clamping mode.

Preferably, the support rotates to be connected in the bottom of box, the stopper divide into two sets ofly, and a set of fixed connection is in the inner wall of pivot one, and another group's fixed connection is in the periphery of pivot two, the pivot one is kept away from the spacing connection of one end of semi-gear in the inside of revolving rack, through the effect of locking spring elasticity, when the box is unmovable, drives the revolving rack deflection, makes the centering of box runner train all around, and the restriction box removes to any direction.

Preferably, the inside elastic connection of fixed block has to support the pole, the center of revolving rack rotates and is connected with the carousel, the arc groove is rotatory symmetric distribution on the carousel, the inside swing joint of arc groove has the locating lever, makes the locating lever stretch out through the rotation of carousel.

Preferably, the tip of locating lever and the inside looks adaptation of constant head tank, the spacing connection of locating lever is in the inside of revolving rack, the runner rotates to be connected in the inside of revolving rack, through the locating lever joint inside the constant head tank, the restriction runner rotates.

Preferably, the positioning grooves are rotationally and symmetrically arranged on the inner wall of the rotating wheel, the magnetic blocks are divided into two groups, one group of magnetic blocks is fixedly connected to the periphery of the rotating disc, the other group of magnetic blocks is fixedly connected to the inner wall of the left lower side of the rotating frame, and the rotating disc is reset through attraction between the magnetic block groups.

(III) advantageous effects

Compared with the prior art, the invention provides the self-limiting sliding-away-preventing telescopic trolley case universal wheel which has the following beneficial effects:

1. this telescopic draw-bar box universal wheel that prevents to slide away from spacing, left and right sides elastic connection through the box bottom has fixture block one, the top limit connection of box pushes away the frame, promote to push away the frame and make the rack move down, based on the transmission of semi-gear, make the support drive the rotatory half of week of runner, will stretch into the inside runner of box and roll out, until two joints of fixture block of rack bottom fixed connection inside fixture block one, the position of locking rack, thereby reach the effect of the universal wheel of being convenient for to stretch out and draw back, prevent that the universal wheel from damaging.

2. This prevent telescopic draw-bar box universal wheel that slides away from spacing, inside through the support is rotated and is connected with pivot one, the inner wall of pivot one has pivot two through locking spring elastic connection, when the box stops to go forward, based on locking spring's elasticity, make pivot two drive the revolving rack to box center deflection, cause the whole centering of box runner train direction all around, the removal of restriction box, the pole of supporting of the inside elastic connection of fixed block simultaneously supports inside the locking disc, the rotation of restriction revolving rack, the electro-magnet intercommunication attracts the magnet group simultaneously, the carousel receives the magnetic force effect to rotate, under the spacing of arc groove, the locating lever stretches out the joint inside the constant head tank, the rotation of restriction runner, thereby reach centering formula locking and rotate the effect that the wheel prevents the box and remove in the inclined plane, improve equipment's practicality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an expanded view of the present invention;

FIG. 3 is an enlarged view of the structure of the turret of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 at A-A in accordance with the present invention;

FIG. 5 is a schematic view of the structure of FIG. 3 at B-B in accordance with the present invention;

FIG. 6 is a schematic diagram of the position of the runner of the present invention;

fig. 7 is an enlarged view of the structure of fig. 2 according to the present invention at a.

In the figure: 1. a box body; 2. a first clamping block; 3. pushing the frame; 4. a rack; 5. a second clamping block; 6. a half gear; 7. a support; 8. a first rotating shaft; 9. a stopper spring; 10. a second rotating shaft; 11. a limiting block; 12. a fixed block; 13. a support rod; 14. rotating the frame; 15. a stopper disk; 16. a turntable; 17. an arc groove; 18. positioning a rod; 19. a rotating wheel; 20. positioning a groove; 21. an electromagnet; 22. and a magnetic block group.

Detailed Description

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

Referring to fig. 1-7, a self-limiting anti-sliding telescopic draw-bar box universal wheel comprises a box body 1, wherein the left side and the right side of the bottom end of the box body 1 are elastically connected with a first clamping block 2, the inside of the box body 1 is hollow, the inside of the bottom end of the box body 1 is movably connected with the first clamping block 2, the bottoms of the left end and the right end of a push frame 3 are fixedly connected with a rack 4, the push frame 3 is in limiting connection with the periphery of the box body 1, the position of the rack 6 is changed by pushing the push frame 3, the top of the box body 1 is movably connected with the push frame 3, the bottom end of the push frame 3 is fixedly connected with the rack 4, the tooth end of the rack 4 is engaged with a half gear 4, the half gear 4 and a bracket 7 are positioned on the same rotation axis, the periphery of a second clamping block 5 is matched with the outside of the first clamping block 2, the position of the rack 6 is locked by, the tooth end of the rack 4 is connected with a bracket 7 through a half gear 6 in a transmission way, the bracket 7 is rotatably connected at the bottom of the box body 1, the limiting blocks 11 are divided into two groups, one group is fixedly connected on the inner wall of a first rotating shaft 8, the other group is fixedly connected on the periphery of a second rotating shaft 10, one end of the first rotating shaft 8, which is far away from the half gear 6, is limited and connected inside a rotating frame 14, the rotating frame 14 is driven to deflect through the elastic action of a stopping spring 9 when the box body 1 is not moved, so that a wheel 19 wheel train on the periphery of the box body 1 is centered, the box body 1 is limited to move towards any direction, the rotating shaft 8 is rotatably connected inside the bracket 7, the rotating shaft 8 is elastically connected inside the first rotating shaft 8 through the stopping spring 9, the rotating shaft 10 is fixedly connected with the limiting blocks 11 on the periphery of the rotating shaft 10, one end, which is far away from, the center of the rotating frame 14 is rotatably connected with a rotating disc 16, the arc grooves 17 are rotationally and symmetrically distributed on the rotating disc 16, the inner part of the arc groove 17 is movably connected with a positioning rod 18, the positioning rod 18 extends out through the rotation of the rotating disc 16, the inner part of the fixed block 12 is movably connected with a resisting rod 13, one end of the second rotating shaft 10, which is far away from the half gear 6, is fixedly connected with the rotating frame 14, the other end of the rotating frame 14 is rotatably connected with the rotating disc 16, the inner part of the rotating disc 16 is provided with the arc groove 17, the limiting connection of the arc groove 17 is connected with the positioning rod 18, the end part of the positioning rod 18 is matched with the inner part of the positioning groove 20, the positioning rod 18 is in limiting connection with the inner part of the rotating frame 14, the rotating wheel 19 is rotatably connected with the rotating wheel 19 through the positioning rod 18 in clamping connection with the inner part, the magnet block groups 22 are divided into two groups, one group is fixedly connected to the periphery of the turntable 16, the other group is fixedly connected to the inner wall of the left lower side of the rotating frame 14, the turntable 16 is reset through attraction between the magnet block groups 22, the electromagnet 21 is fixedly connected to the inner wall of the rotating frame 14, and the magnet block group 22 is fixedly connected to one end, close to the electromagnet 21, of the periphery of the turntable 16.

The working process and principle are as follows: before the luggage case moves, the push frame 3 is pressed downwards, the rack 4 is fixedly connected to the bottom end of the push frame 3, the clamping blocks I2 are elastically connected to the left side and the right side of the bottom end of the luggage case 1, the push frame 3 is in limit connection with the top of the luggage case 1, the rack 4 is pushed to move downwards, the gear end of the rack 4 is meshed and connected with the half gear 6, the rack 4 is locked at the position of the clamping blocks II 5 fixedly connected to the bottom end of the rack 4, the position of the rack 4 is locked, the effect of conveniently extending and retracting the universal wheels is achieved, the universal wheels are prevented from being damaged, when the luggage case does not move, the rotating shaft I8 is rotatably connected to the inside of the support 7, the inner wall of the rotating shaft I8 is elastically connected with the rotating shaft II 10 through the stop spring 9, when the box body 1 is not moved, based on the elasticity of the stop spring 9 and the cooperation of the limiting block 11, the rotating shaft two 10 drives the rotating frame 14 to deflect towards the center of the box body 1, because the rotating wheels 19 are arranged around the bottom end of the box body 1, the rotating frame 14 drives the rotating wheels 19 to move in the same direction, the wheel train directions of the rotating wheels 19 around the box body 1 are all centered, the movement of the box body 1 is limited, meanwhile, the abutting rods 13 elastically connected inside the fixed blocks 12 abut against the inside of the stop disc 15, the rotation of the rotating frame 14 is limited, finally, the electromagnets 21 are started, the electromagnets 21 are communicated with the attraction magnet block group 22, the rotating disc 16 rotates under the action of magnetic force, under the limit of the arc grooves 17, the positioning rods 18 extend out of the positioning grooves 20 and are clamped inside the positioning grooves, the rotation of the rotating wheels 19 is limited, the effect of locking the rotating wheels to prevent the box body 1 from moving on an inclined plane is achieved, the practicability of the equipment is improved, when the movement state is recovered, the stop spring 9 is compressed, the electromagnet 21 is disconnected, the attraction force between the magnet block group 22 on the inner wall of the rotating frame 14 and the magnet block group 22 on the periphery of the rotating disc 16 enables the rotating disc 16 to reset, the positioning rod 18 retracts under the limit of the rotating frame 14 and the arc groove 17 and is not clamped with the positioning groove 20 in the rotating wheel 19, and the rotating wheel 19 can rotate smoothly.

To sum up, this prevent telescopic draw-bar box universal wheel that slides away from spacing, left and right sides elastic connection through 1 bottom of box has fixture block one 2, the top limit connection of box 1 pushes away frame 3, it makes rack 4 move down to promote to push away frame 3, transmission based on semi-gear 6 makes support 7 drive 19 rotatory half cycles of runner, the runner 19 that will stretch into 1 inside of box is changeed out, until two 5 joints of fixture block of 4 bottom fixed connection of rack are inside fixture block one 2, the position of locking rack 4, thereby reach the effect of the telescopic universal wheel of being convenient for, prevent that the universal wheel from damaging.

Moreover, the self-limiting sliding-away preventing telescopic draw-bar box universal wheel is rotatably connected with a first rotating shaft 8 through the inside of the bracket 7, the inner wall of the first rotating shaft 8 is elastically connected with a second rotating shaft 10 through a stop spring 9, when the box body 1 stops advancing, the second rotating shaft 10 drives the rotating frame 14 to deflect towards the center of the box body 1 based on the elastic force of the stop spring 9, so that the wheel train directions of the rotating wheels 19 at the periphery of the box body 1 are all centered to limit the movement of the box body 1, meanwhile, the abutting rod 13 elastically connected with the inside of the fixed block 12 abuts against the inside of the stop disc 15 to limit the rotation of the rotating frame 14, meanwhile, the electromagnet 21 is communicated with the attraction magnet block group 22, the rotating disc 16 rotates under the action of magnetic force, under the limit of the arc groove 17, the positioning rod 18 extends out and is clamped in the positioning groove 20 to limit the rotation of the rotating wheel 19, thereby reach the effect that the wheel prevents box 1 at the inclined plane removal of centering locking, improve equipment's practicality.

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