CN212289952U

CN212289952U - Handcart front gear resetting mechanism and handcart

Info

Publication number: CN212289952U
Application number: CN202021708769.6U
Authority: CN
Inventors: 陈耀鹏; 夏远想; 熊剑鹏; 李超雄
Original assignee: Wuhan Chuangyuan Aluminum Relaxed Ware Co ltd
Current assignee: Wuhan Chuangyuan Aluminum Relaxed Ware Co ltd
Priority date: 2020-08-15
Filing date: 2020-08-15
Publication date: 2021-01-05
Anticipated expiration: 2030-08-15

Abstract

The utility model relates to a keep off canceling release mechanical system and handcart before handcart relates to the handcart field to solve the problem that common reset torsion spring exposes the use that the installation leads to and experiences the difference, this handcart keeps off canceling release mechanical system is including installation section of thick bamboo, elasticity reset assembly and connecting piece, installation section of thick bamboo fixed mounting is in the chassis front end of handcart, elasticity reset assembly locates in the installation section of thick bamboo, the connecting piece be provided with two and connect respectively in elasticity reset assembly's both ends, just the connecting piece rotate connect in the tip of installation section of thick bamboo, the axis of rotation of connecting piece with be parallel to each other or the coincidence between the axis of rotation of installation section of thick bamboo, the connecting piece is kept away from elasticity reset assembly's tip and handcart keep off piece bottom fixed connection. This application has the effect that the use of sound construction compactness, optimization handcart is experienced, is promoted the whole outward appearance of handcart.

Description

Handcart front gear resetting mechanism and handcart

Technical Field

The application relates to the field of trolleys, in particular to a front-gear resetting mechanism of a trolley and the trolley.

Background

The cart is a transport vehicle that is pushed and pulled manually, and is widely used in supermarkets, airports, and other places. At present, the front end part of the chassis of a part of the handcart is hinged with a front stop piece which is used for preventing objects stacked on the chassis from sliding off. In order to ensure that the front stop member can automatically reset and maintain the vertical state, a reset torsion spring is generally arranged between the bottom of the front stop member and the front end part of the chassis, and the reset torsion springs are all exposed.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the goods stacked on the chassis of the trolley are generally products such as a backpack, a plastic bag and the like, the plastic bag is very easy to be punctured by the externally-arranged return spring, and the belt on the backpack is also very easy to be rolled into the externally-arranged return spring, so that the use experience is very poor, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the use that common reduction torsion spring exposes the installation and leads to experiences the difference, this application provides a keep off canceling release mechanical system and handcart before the handcart.

First aspect, the application provides a fender canceling release mechanical system before handcart adopts following technical scheme:

the utility model provides a handcart front baffle canceling release mechanical system, includes an installation section of thick bamboo, elasticity reset assembly and connecting piece, installation section of thick bamboo fixed mounting is in the chassis front end of handcart, elasticity reset assembly locates in the installation section of thick bamboo, the connecting piece be provided with two and connect respectively in the both ends of elasticity reset assembly, and the connecting piece rotates to be connected in the tip of installation section of thick bamboo, be parallel to each other or coincide between the axis of rotation of connecting piece and the axis of rotation of installation section of thick bamboo, the connecting piece is kept away from the tip of elasticity reset assembly and handcart front baffle part bottom fixed connection.

Through adopting above-mentioned technical scheme, under the elastic restoring force effect of elasticity reset assembly, drive the connecting piece and rotate for the installation section of thick bamboo to realize driving the purpose that the handcart front catch piece resets. An installation section of thick bamboo has been increased, provides the mounted position for the elasticity subassembly that resets, and an installation section of thick bamboo is lived whole elasticity subassembly parcel, and not only the structure is firm compacter, promotes the whole outward appearance of handcart, and an installation section of thick bamboo still has the guard action to the elasticity subassembly that resets moreover to be difficult for meeting water and rustting, life is longer. The most important is that: the elastic reset assembly is not exposed any more, the plastic bag is not easy to puncture, and the belt on the backpack is not easy to be rolled into the elastic reset assembly, so that the use experience of a user is better.

Preferably, the elastic reset assembly comprises a fixed block and two reset springs, the fixed shaft is fixedly connected to the middle of the mounting cylinder, the two reset springs are respectively located on two sides of the fixed shaft, and two ends of each reset spring are respectively connected to one end of the fixed shaft and one end of the connecting shaft.

Through adopting above-mentioned technical scheme, above-mentioned structural design's elasticity subassembly that resets, simple structure is compact, can just install in the narrow and small space in the installation section of thick bamboo, and the preparation is convenient, and two reset spring are stronger for single reset spring moreover, and its elastic restoring force, above-mentioned design still is symmetrical structure moreover, is favorable to stably ordering about the connecting piece rotation and the handcart front catch piece resets.

Preferably, the both ends of fixed axle all are provided with first card post, first draw-in groove has been seted up on the first card post, reset spring is close to the tip of first card post is provided with first interior crotch, first card post inserts in the reset spring, just first interior crotch card goes into in the first draw-in groove.

By adopting the technical scheme, a stable clamping position is provided for the first inner hook by adding the first clamping column and the first clamping groove, the first clamping column is inserted into the reset spring, the reset spring has a blocking and limiting effect on the first clamping column, and the first inner hook is clamped into the first clamping groove in a matching manner, so that the fixed shaft and the reset spring are firmly connected; and first interior crotch is crooked towards reset spring's inside, is favorable to reset spring to fill in smoothly in the installation section of thick bamboo, and above-mentioned structure still is removable assembly design, makes things convenient for the later stage to change accessories.

Preferably, the fixing shaft is fixedly connected with the mounting cylinder through a fixing bolt, a first threaded hole which is in threaded assembly with the fixing bolt is formed in the fixing shaft, and a through hole through which the fixing bolt penetrates is formed in the mounting cylinder.

Through adopting above-mentioned technical scheme, at the in-process of installation fixed axle, need fill in the installation section of thick bamboo earlier with the fixed axle in, if both adopt welded mode fixed, will carry out welding operation in the narrow and small space in the installation section of thick bamboo so, very inconvenient, so adopt fixing bolt to lock fixed axle, installation section of thick bamboo, not only sound construction, installation dismantlement is all more convenient moreover.

Preferably, the connecting member includes a connecting shaft and a locking bolt,

a second clamping column is arranged at the end part, close to the reset spring, of the connecting shaft, a second clamping groove is formed in the second clamping column, a second inner hook is arranged at the end part, close to the second clamping column, of the reset spring, the second clamping column is inserted into the reset spring, and the second inner hook is clamped into the second clamping groove;

the end part of the connecting shaft, which is far away from the second clamping column, is provided with a second threaded hole, and the locking bolt penetrates through the bottom of the front stopper of the trolley and is assembled in the second threaded hole in a threaded manner.

By adopting the technical scheme, after the locking bolt penetrates through the bottom of the front blocking part of the handcart, the cap part of the locking bolt is matched with the connecting shaft, so that the bottom of the front blocking part of the handcart can be clamped and fixed, and the connecting structure is firm and convenient to mount and dismount; the second clamping column and the second clamping groove are added to provide a stable clamping position for the second inner hook, the second clamping column is inserted into the reset spring, the reset spring has a blocking and limiting effect on the second clamping column, and the second inner hook is clamped into the second clamping groove in a matched manner, so that the connecting shaft and the reset spring are firmly connected; and the crotch is crooked towards reset spring's inside in the second, is favorable to reset spring to fill in smoothly in the installation section of thick bamboo, and above-mentioned structure still is removable assembly design, makes things convenient for the later stage to change accessories.

Preferably, the connecting shaft comprises a conical table section and a cylindrical section, the conical table section and the cylindrical section are integrally formed, part or all of the cylindrical section extends into the mounting cylinder, the conical table section is located outside the mounting cylinder, and the second threaded hole is formed in the conical table section.

Through adopting above-mentioned technical scheme, cylinder section and installation section of thick bamboo are mutually supported, make things convenient for the connecting axle to stably rotate, and the frustum of a cone section can make the connecting axle stretch out the part of installation section of thick bamboo slick and sly more to when placing article on the chassis, the frustum of a cone section is difficult for making article damaged, uses and experiences better.

Preferably, a notch is formed in one end, far away from the cylindrical section, of the conical table section, and the shape of the notch is matched with that of the bottom of the front stopper of the trolley.

Through adopting above-mentioned technical scheme, catch piece bottom before the handcart and generally form by rectangular pipe or circular tube preparation, so in the breach that the frustum section was seted up, laminating rectangular pipe or circular pipe that can be better, the frustum section is bigger with the area of contact of handcart front catch piece bottom to locking bolt and frustum section mutually support, can be more firm catch piece bottom clamp tightly with the handcart.

Preferably, this handcart front fender canceling release mechanical system still includes the mount pad, the mount pad includes mounting panel and solid fixed ring, gu fixed ring is provided with a plurality ofly and respectively interval vertical arrangement, the installation section of thick bamboo runs through all gu fixed ring just with gu fixed ring fixed connection, gu fixed ring is fixed in the upper surface of mounting panel, the mounting panel is fixed in the chassis front end portion of handcart.

Through adopting above-mentioned technical scheme, above-mentioned structural design's mount pad, simple structure not only, firm, the preparation is more convenient with the installation, and the cost of manufacture is also lower, can firmly fix the installation section of thick bamboo through solid fixed ring moreover, prevents effectively that the installation section of thick bamboo from rocking.

Preferably, the mounting plate is located a position below the connecting piece and provided with an avoiding hole, the avoiding hole is used for providing a rotating space for the front stopper bottom of the trolley when rotating, the mounting plate is further fixedly provided with a limiting plate, the limiting plate is located on one side, facing the rear end of the chassis, of the avoiding hole, and the limiting plate is used for blocking the front stopper bottom of the trolley so as to ensure that the front stopper of the trolley keeps vertical.

By adopting the technical scheme, in the process of resetting the front blocking piece of the handcart, the front blocking piece of the handcart can rotate under the driving of the elastic resetting component, so that the added limiting plate can block and limit the bottom of the front blocking piece of the handcart so as to prevent the front blocking piece of the handcart from continuously rotating, and the front blocking piece of the handcart can keep a vertical state; in order to ensure that the bottom of the front stopper of the trolley can be matched with the limiting plate to block, the bottom of the front stopper of the trolley is designed to be slightly longer, so that an avoiding hole needs to be formed in the mounting plate, and a rotating space is provided for the rotation of the bottom of the front stopper of the trolley; the limiting plate that adds uses with dodging the hole cooperation, has further optimized the use of handcart and has experienced.

In a second aspect, the present application provides a cart, which adopts the following technical solution:

a handcart comprises a chassis, wheels, an upright post, a handle, a front baffle and the handcart front baffle resetting mechanism, wherein the handcart front baffle resetting mechanism is arranged between the front end part of the chassis and the bottom of the front baffle, the upright post is fixed at the rear end part of the chassis, the handle is arranged at the top of the upright post, and the wheels are arranged at the bottom of the upright post and/or the bottom of the chassis.

By adopting the technical scheme, on the basis that the trolley front gear resetting mechanism has the advantages, the trolley also has the advantages that: an installation section of thick bamboo is lived whole elasticity reset assembly parcel, and not only the structure is more firm compact, promotes the whole outward appearance of handcart, and an installation section of thick bamboo still has the guard action to elasticity reset assembly moreover to elasticity reset assembly is difficult for meeting water and rusts, and life is longer, and user's use is experienced better. The handcart with the structural design has the advantages that the structure is firm, the quality is better, and the front baffle piece can prevent articles stacked on the chassis from sliding off.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the installation barrel is additionally arranged to provide an installation position for the elastic reset assembly, the installation barrel wraps the whole elastic reset assembly, the structure is firmer and more compact, the installation barrel also has a protection effect on the elastic reset assembly, the elastic reset assembly is not exposed any more, a plastic bag is not easy to puncture, a belt on a backpack is not easy to be rolled into the elastic reset assembly, and the use experience of a user is better;

2. the first clamping column and the second clamping column are inserted into the reset spring, the reset spring has a blocking and limiting effect on the first clamping column and the second clamping column, and the first inner hook is clamped into the first clamping groove and the second inner hook is clamped into the second clamping groove, so that the reset spring, the fixed shaft and the connecting shaft are firmly connected;

3. first interior crotch, second interior crotch are towards reset spring's inside crooked, are favorable to reset spring to fill in smoothly in the installation section of thick bamboo.

Drawings

Fig. 1 is a schematic structural view of a cart according to an embodiment of the present application.

Fig. 2 is an exploded view of the front stop return mechanism of the cart according to the embodiment of the present application.

Fig. 3 is a schematic structural view of a front stop return mechanism of a trolley according to an embodiment of the present application.

Description of reference numerals: 101. a chassis; 102. a wheel; 103. a column; 104. a handle; 105. a front stop; 106. a trolley front gear reset mechanism; 1. mounting the cylinder; 2. an elastic reset component; 21. a fixed shaft; 211. a first clamp post; 212. a first card slot; 213. a first threaded hole; 22. a return spring; 221. a first inner hook; 222. a second inner hook; 3. a connecting member; 31. a connecting shaft; 311. a second clamping column; 312. a second card slot; 313. a second threaded hole; 314. a frustum section; 3141. a notch; 315. a cylindrical section; 32. locking the bolt; 4. fixing the bolt; 5. a mounting seat; 51. mounting a plate; 511. avoiding holes; 52. a fixing ring; 53. and a limiting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

At present, the front end part of the chassis of a part of the handcart is hinged with a front stop piece which is used for preventing objects stacked on the chassis from sliding off. In order to ensure that the front stop member can automatically reset and maintain the vertical state, a reset torsion spring is generally arranged between the bottom of the front stop member and the front end part of the chassis, and the reset torsion springs are all exposed. Because the goods stacked on the chassis of the trolley are generally products such as a backpack, a plastic bag and the like, the plastic bag is very easy to be punctured by the externally-arranged return spring, and the belt on the backpack is also very easy to be rolled into the externally-arranged return spring, so that the use experience is very poor, and the improvement is needed.

The embodiment of the application discloses keep off canceling release mechanical system before handcart. Referring to fig. 1 and 2, the trolley front bumper reset mechanism comprises an installation cylinder 1, an elastic reset assembly 2, a connecting piece 3, a fixing bolt 4 and an installation seat 5, wherein the installation cylinder 1 and the connecting piece 3 are made of stainless steel materials.

The installation cylinder 1 is fixedly installed at the front end part of the chassis 101 of the trolley through the installation seat 5, the elastic reset assembly 2 is arranged in the installation cylinder 1, the connecting pieces 3 are provided with two connecting pieces which are respectively connected to two ends of the elastic reset assembly 2, the connecting pieces 3 are rotatably connected to the end part of the installation cylinder 1, the rotating axes of the connecting pieces 3 and the rotating axes of the installation cylinder 1 are mutually overlapped (in other embodiments, the connecting pieces are also deliberately parallel to each other), and the end part of the connecting piece 3, far away from the elastic reset assembly 2, is fixedly connected with the bottom of the front stopper 105.

The mounting seat 5 comprises a mounting plate 51 and fixing rings 52, the fixing rings 52 are arranged two and are respectively arranged vertically at intervals, the mounting cylinder 1 penetrates through all the fixing rings 52 and is welded and fixed with the fixing rings 52, the fixing rings 52 are welded and fixed on the upper surface of the mounting plate 51, and the mounting plate 51 is fixed at the front end part of the chassis 101 of the trolley through multiple groups of bolts and nuts. The mounting plate 51 and the fixing ring 52 are both made of stainless steel, and the mounting plate 51 is rectangular and is chamfered at four corners thereof.

The mounting plate 51 is provided with an avoiding hole 511 (shown in fig. 2 and 3) at a position below the connecting member 3, the avoiding hole 511 is used for providing a rotating space for the bottom of the front stopper 105 of the handcart when rotating, the avoiding hole 511 is rectangular, the mounting plate 51 is further fixedly provided with a limiting plate 53 through a screw, the limiting plate 53 is located at one side of the avoiding hole 511 facing the rear end of the chassis 101, and the limiting plate 53 is used for blocking the bottom of the front stopper 105 of the handcart to ensure that the front stopper 105 of the handcart keeps vertical. The limiting plate 53 is also made of a stainless steel plate, the bottom of the trolley front stopper 105 is in a shape of a round rod, one side of the limiting plate 53 facing the avoidance hole 511 is provided with an arc-shaped groove, and the arc-shaped groove is attached to the bottom of the trolley front stopper 105, so that the limiting plate 53 can stably block the bottom of the trolley front stopper 105.

The elastic reset component 2 comprises a fixed shaft 21 and two reset springs 22, the fixed shaft 21 is fixedly connected to the middle part of the mounting barrel 1, the two reset springs 22 are respectively positioned at two sides of the fixed shaft 21, and two ends of each reset spring 22 are respectively connected to one end of the fixed shaft 21 and one end of the connecting piece 3. The return spring 22 is a stainless steel strong spring, and the fixed shaft 21 can be made of stainless steel, carbon steel or cast iron.

Both ends of fixed axle 21 all are provided with first calorie of post 211, and first calorie of post 211 is the cylinder shape, has seted up first draw-in groove 212 on the first calorie of post 211, and reset spring 22 is provided with first interior crotch 221 near the tip of first calorie of post 211, and reset spring 22's internal diameter just is a bit bigger than the external diameter of first calorie of post 211, and first calorie of post 211 inserts in reset spring 22, and first interior crotch 221 card is gone into in first draw-in groove 212.

The fixing shaft 21 is fixedly connected with the mounting barrel 1 through the fixing bolt 4, the fixing shaft 21 is provided with a first threaded hole 213 which is in threaded assembly with the fixing bolt 4, and the mounting barrel 1 is provided with a through hole for the fixing bolt 4 to pass through (in fig. 2 and 3, the through hole is arranged at the bottom of the mounting barrel 1, and the through hole is not specifically marked due to the fact that the visual angle is shielded). The mounting plate 51 has a mounting through hole at the center thereof, and when the fixing bolt 4 needs to be screwed, a screwdriver can be inserted through the mounting through hole to facilitate assembly and disassembly of the fixing bolt 4.

The connecting piece 3 comprises a connecting shaft 31 and a locking bolt 32, a second clamping column 311 is arranged at the end part of the connecting shaft 31 close to the reset spring 22, the second clamping column 311 is in a cylindrical shape, a second clamping groove 312 is formed in the second clamping column 311, a second inner hook 222 is arranged at the end part of the reset spring 22 close to the second clamping column 311, the inner diameter of the reset spring 22 is just a little larger than the outer diameter of the second clamping column 311, the second clamping column 311 is inserted into the reset spring 22, and the second inner hook 222 is clamped into the second clamping groove 312; the end of the connecting shaft 31 remote from the second latching post 311 is provided with a second threaded hole 313, and the locking bolt 32 is threaded into the second threaded hole 313 after passing through the bottom of the stroller front stop 105.

The connecting shaft 31 comprises a frustum section 314 and a cylindrical section 315, the frustum section 314 and the cylindrical section 315 are integrally formed, part or all of the cylindrical section 315 extends into the mounting cylinder 1, the frustum section 314 is located outside the mounting cylinder 1, and the second threaded hole 313 is formed in the frustum section 314.

One end of the truncated cone section 314, which is far away from the cylindrical section 315, is provided with a notch 3141, the shape of the notch 3141 is matched with the shape of the bottom of the trolley front stopper 105, in this embodiment, because the bottom of the trolley front stopper 105 is in the shape of a round rod, the notch 3141 is also designed in the shape of a circular arc, and in other embodiments, the notch 3141 is also designed in the shape of a rectangle or other shapes.

In this embodiment, the outer diameter of the cylindrical section 315, the outer diameter of the return spring 22, the outer diameter of the fixed shaft 21 and the inner diameter of the mounting cylinder 1 are matched and in clearance fit.

The implementation principle of the handcart front gear resetting mechanism is as follows: under the action of the elastic restoring force of the elastic resetting component 2, the connecting piece 3 is driven to rotate relative to the mounting cylinder 1, so that the aim of resetting the front stopper 105 of the trolley is fulfilled. Increased an installation section of thick bamboo 1, for elasticity reset assembly 2 provides the mounted position, installation section of thick bamboo 1 lives whole elasticity reset assembly 2 parcel, and not only the structure is firm compacter, promotes the whole outward appearance of handcart, and installation section of thick bamboo 1 still has the guard action to elasticity reset assembly 2 moreover to elasticity reset assembly 2 is difficult for meeting water and rusts, and life is longer. The most important is that: elasticity reset assembly 2 no longer exposes, is difficult for stabbing the plastic bag to and the belt on the knapsack also is difficult to be drawn into elasticity reset assembly 2, and user's use experience is better.

The embodiment of the application also discloses a trolley. Referring to fig. 1 and 2, the cart includes a chassis 101, wheels 102, a column 103, a handle 104, a front stop 105, and a cart front stop resetting mechanism 106 as described above, the cart front stop resetting mechanism 106 is disposed between a front end portion of the chassis 101 and a bottom portion of the front stop 105, the column 103 is fixed to a rear end portion of the chassis 101, the two columns 103 are disposed, the two handles 104 are horizontally disposed, two ends of the handle 104 are respectively connected to top portions of the two columns 103, the wheels 102 are four, two of the wheels 102 are universal wheels and are mounted at a front end of a bottom portion of the chassis 101, and the other two wheels 102 are ordinary rubber wheels and are mounted at a bottom portion of the column 103. The chassis 101 specifically divide into superstructure and substructure, is 8-15 degrees contained angles between superstructure and the substructure and arranges, and the substructure is the level or angle of depression from back to front and arranges, and superstructure is the angle of elevation from back to front and arranges, keeps off canceling release mechanical system 106 specifically to be installed in the superstructure front end that is located chassis 101 before the handcart.

The implementation principle of this application embodiment handcart does: the cart also has the advantages described above, based on the advantages described above for the cart front stop return mechanism 106, namely: an installation section of thick bamboo 1 is lived whole elasticity reset assembly 2 parcel, and not only the structure is more firm compact, promotes the whole outward appearance of handcart, and an installation section of thick bamboo 1 still has the guard action to elasticity reset assembly 2 moreover to elasticity reset assembly 2 is difficult for meeting water and rusts, and life is longer, and user's use is experienced better. The handcart with the structural design has firm structure and better quality, and the front stopper 105 can prevent objects stacked on the chassis 101 from sliding off.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a keep off canceling release mechanical system before handcart which characterized in that: the trolley is characterized by comprising an installation barrel (1), an elastic reset assembly (2) and connecting pieces (3), wherein the installation barrel (1) is fixedly installed at the front end part of a chassis of a trolley, the elastic reset assembly (2) is arranged in the installation barrel (1), the connecting pieces (3) are provided with two ends which are respectively connected to the elastic reset assembly (2), the connecting pieces (3) are rotatably connected to the end part of the installation barrel (1), the rotating axis of the connecting pieces (3) and the rotating axis of the installation barrel (1) are parallel or coincident with each other, and the end part of the connecting pieces (3) far away from the elastic reset assembly (2) is fixedly connected with the front blocking piece bottom of the trolley.

2. A stroller front stop return mechanism according to claim 1, further comprising: elasticity reset assembly (2) are including fixed axle (21) and two reset spring (22), fixed axle (21) fixed connection be in the middle part of installation section of thick bamboo (1), two reset spring (22) are located respectively the both sides of fixed axle (21), reset spring (22) both ends connect respectively in the one end of fixed axle (21) with the one end of connecting piece (3).

3. A stroller front stop return mechanism according to claim 2, wherein: the both ends of fixed axle (21) all are provided with first card post (211), first draw-in groove (212) have been seted up on first card post (211), reset spring (22) are close to the tip of first card post (211) is provided with first interior crotch (221), first card post (211) insert in reset spring (22), just first interior crotch (221) card is gone into in first draw-in groove (212).

4. A stroller front stop return mechanism according to claim 3, wherein: the fixing shaft (21) is fixedly connected with the mounting barrel (1) through a fixing bolt (4), a first threaded hole (213) which is assembled with the fixing bolt (4) in a threaded mode is formed in the fixing shaft (21), and a through hole through which the fixing bolt (4) penetrates is formed in the mounting barrel (1).

5. A stroller front stop return mechanism according to claim 2, wherein: the connecting piece (3) comprises a connecting shaft (31) and a locking bolt (32),

a second clamping column (311) is arranged at the end part, close to the reset spring (22), of the connecting shaft (31), a second clamping groove (312) is formed in the second clamping column (311), a second inner hook (222) is arranged at the end part, close to the second clamping column (311), of the reset spring (22), the second clamping column (311) is inserted into the reset spring (22), and the second inner hook (222) is clamped into the second clamping groove (312);

the end part of the connecting shaft (31) far away from the second clamping column (311) is provided with a second threaded hole (313), and the locking bolt (32) penetrates through the bottom of the front stopper of the handcart and is assembled in the second threaded hole (313) in a threaded mode.

6. A stroller front stop return mechanism according to claim 5, wherein: the connecting shaft (31) comprises a conical table section (314) and a cylindrical section (315), the conical table section (314) and the cylindrical section (315) are integrally formed, part or all of the cylindrical section (315) extends into the mounting cylinder (1), the conical table section (314) is located outside the mounting cylinder (1), and the second threaded hole (313) is formed in the conical table section (314).

7. A stroller front stop return mechanism according to claim 6, wherein: one end of the conical section (314), which is far away from the cylindrical section (315), is provided with a notch (3141), and the shape of the notch (3141) is matched with the shape of the bottom of the front stopper of the handcart.

8. A stroller front stop return mechanism according to claim 1, further comprising: this handcart front baffle canceling release mechanical system still includes mount pad (5), mount pad (5) are including mounting panel (51) and solid fixed ring (52), gu fixed ring (52) are provided with a plurality ofly and respectively interval vertical arrangement, installation section of thick bamboo (1) run through all gu fixed ring (52) and with gu fixed ring (52) fixed connection, gu fixed ring (52) are fixed in the upper surface of mounting panel (51), mounting panel (51) are fixed in the chassis front end of handcart.

9. A stroller front stop return mechanism according to claim 8, wherein: mounting panel (51) are located position department below connecting piece (3) is provided with dodge hole (511), dodge hole (511) and be used for keeping off the piece bottom for the handcart and provide the rotation space when rotating, still fixed mounting has limiting plate (53) on mounting panel (51), limiting plate (53) are located dodge hole (511) towards one side of chassis (101) rear end portion, limiting plate (53) are used for keeping off the handcart front fender piece bottom in order to ensure that the handcart front fender piece keeps vertical.

10. A cart, characterized by: comprising a chassis (101), wheels (102), a post (103), a handle (104), a front stop (105) and a trolley front stop return mechanism (106) according to any one of claims 1 to 9, wherein the trolley front stop return mechanism (106) is arranged between a front end portion of the chassis (101) and a bottom portion of the front stop (105), the post (103) is fixed to a rear end portion of the chassis (101), the handle (104) is arranged on a top portion of the post (103), and the wheels (102) are arranged on a bottom portion of the post (103) and/or a bottom portion of the chassis (101).