Novel trolley wheel stopper assembly and novel trolley

Abstract

The utility model discloses a novel trolley wheel stopper assembly and a novel trolley, the novel trolley wheel stopper assembly comprises a mounting seat and a wheel stopper, the mounting seat is arranged on the trolley, the wheel stopper is used for stopping the trolley from sliding, and the wheel stopper is detachably connected with the mounting seat. The application has the effect of improving the safety and convenience of stopping the trolley by a user.

Description

Technical Field

[0001] The present application relates to the field of wheel chock technology, and in particular to a novel trolley wheel chock assembly and a novel trolley. Background Art

[0002] In the prior art, the trolley does not have a built-in wheel chock, and is prone to slipping when parked on a slope. In actual use on site, non-professional tools such as steel blocks or bricks are used to support the tires to prevent slipping. Using non-professional wheel chocks is prone to slipping or crushing the top blocks, so there is room for further improvement. Utility Model Content

[0003] In view of this, the present application provides a new trolley wheel chock assembly and a new trolley, which can keep the wheel chock and the trolley in the same spatial position at all times, so that the user will not forget to bring the wheel chock and use dangerous non-professional wheel chocks, and reduces the time for the user to find the wheel chock, which is beneficial to improving the safety and convenience of the user in stopping the trolley.

[0004] In order to improve the safety and convenience of users stopping a trolley, the present application provides a new trolley wheel stopper assembly.

[0005] The present application provides a novel trolley wheel blocker assembly adopts the following technical solution:

[0006] A novel wheel blocker assembly for a trolley comprises a mounting seat and a wheel blocker, wherein the mounting seat is arranged on the trolley, the wheel blocker is used to block the trolley from slipping, and the wheel blocker is detachably connected to the mounting seat.

[0007] By adopting the above technical scheme, the wheel chock, also known as a car blocker, is placed in front of or behind the wheel travel path to prevent the wheel from slipping due to potential energy conversion or other reasons after parking. Common wheel chocks also prevent slipping by locking the wheels. The new trolley wheel chock assembly fixes the wheel chock on the trolley through a mounting seat, so that the trolley always carries the wheel chock, which is convenient for the user to take the wheel chock when using it, and also convenient for the user to place the wheel chock, reducing the possibility of the trolley not having its own wheel chock and easily causing the car to slip when parking on a slope, reducing the probability of the user using a dangerous non-professional wheel chock because of forgetting to bring the wheel chock, and reducing the time the user spends looking for the wheel chock, which is beneficial to improving the safety and convenience of the user stopping the trolley.

[0008] Preferably, the mounting seat comprises a mounting plate, the mounting plate is provided with a slide groove in the vertical direction or inclined to the vertical direction, and the wheel blocker is provided with a protrusion, and the protrusion cooperates with the slide groove.

[0009] By adopting the above technical solution, the wheel blocker and the mounting seat are detachably connected by sliding, which is more convenient.

[0010] Preferably, the mounting seat includes a mounting plate, and the mounting plate is arranged on the trolley along the vertical direction of the trolley or along the vertical direction inclined to the trolley, arc plates are respectively provided on both sides of the mounting plate, and a slide groove is formed between the mounting plate and the arc plate, a baffle is provided at the lower part of the mounting plate, and a protrusion is provided on the wheel blocker, and the protrusion cooperates with the slide groove.

[0011] By adopting the above technical solution, the wheel blocker is connected to the slide groove through the protrusion, and the mounting seat is relatively light and convenient through the combination of the plates. The wheel blocker is dropped by the baffle plate. The wheel blocker assembly is not only relatively convenient to disassemble by sliding but also has a light overall structure.

[0012] Preferably, a connecting piece is provided on the mounting plate, and the connecting piece is used to be connected to the trolley.

[0013] By adopting the above technical solution, if the trolley is connected only by the mounting plate, the installable positions of the mounting seat on the trolley are relatively limited. The installation positions of the mounting seat on the trolley can be enriched by the connecting piece, thereby increasing the universal applicability of the new trolley wheel stopper assembly.

[0014] Preferably, the upper end of the slide groove becomes a mounting opening, the inner diameter of the end of the slide groove near the mounting opening is larger than the inner diameter of the end of the slide groove far from the mounting opening, and the wheel blocker can be at least partially located in the slide groove.

[0015] By adopting the above technical solution, even if the sliding groove is a through groove, when the wheel blocker and the mounting seat slide, the wheel blocker will not fall due to the smaller inner diameter of the lower end of the mounting seat, thereby further simplifying the structure of the mounting seat, making the mounting seat thinner and lighter, reducing the overall weight of the new trolley wheel blocker assembly, and increasing the universal applicability of the new trolley wheel blocker assembly.

[0016] Preferably, the wheel blocker may be in the form of a wedge-shaped block.

[0017] By adopting the above technical solution, the wedge-shaped block is one of the simplest and most effective wheel block forms. For round or oval wheels, the wedge-shaped block can easily fit the arc-shaped gap between the ground and the front of the wheel, thereby effectively preventing the wheel from slipping.

[0018] Preferably, the wheel blocker is made of polyurethane.

[0019] By adopting the above technical solution, the wheel blocker made of polyurethane material has high strength, good toughness, wear resistance and good elasticity.

[0020] Preferably, the mounting seat is arranged near the wheel position.

[0021] By adopting the above technical solution, the mounting seat is arranged close to the wheel, so that the user can easily remove the wheel chock from the mounting seat, thereby conveniently limiting the wheel from sliding down the slope, and it is also convenient for the user to install the wheel chock back on the mounting seat. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel chock due to forgetting to bring the wheel chock is greatly reduced, and the time for the user to find the wheel chock is also greatly reduced, which is beneficial to improving the safety and convenience of the user in stopping the trolley.

[0022] In order to improve the safety and convenience of users stopping the trolley, the present application provides a new type of trolley.

[0023] The new type of trolley provided in this application adopts the following technical solution:

[0024] A novel trolley comprises a vehicle body and the novel trolley wheel chock assembly, wherein the novel trolley wheel chock assembly is connected to the vehicle body.

[0025] By adopting the above technical scheme, the new trolley wheel chock assembly fixes the wheel chock on the trolley through the mounting seat, so that the trolley always carries the wheel chock, which is convenient for the user to take the wheel chock when using it, and also convenient for the user to place the wheel chock, thereby reducing the possibility of the trolley slipping when parking on a slope because it does not have its own wheel chock, reducing the probability of the user using a dangerous non-professional wheel chock due to forgetting to carry the wheel chock, and reducing the time the user spends looking for the wheel chock, which is beneficial to improving the safety and convenience of the user stopping the trolley.

[0026] Preferably, the vehicle body includes a leg assembly, the leg assembly includes a leg shell, the novel trolley wheel blocker assembly includes a mounting seat and a wheel blocker, the mounting seat is connected to the leg shell, and the wheel blocker is detachably connected to the mounting seat.

[0027] By adopting the above technical scheme, the leg assembly is used to further strengthen the parking stability of the trolley after the trolley is parked. The leg assembly usually includes a leg housing, a screw and a driving mechanism. The screw is at least partially located in the leg housing, and the driving mechanism drives the screw to retract and retract in the leg housing. Therefore, installing the new trolley wheel stopper assembly on the leg housing will not affect the operation of the leg assembly, and usually the installation position of the leg assembly is close to the wheel. Installing the new trolley wheel stopper assembly on the leg assembly allows the user to easily remove the wheel stopper from the mounting seat, thereby conveniently limiting the wheel from sliding down the slope, and also conveniently installing the wheel stopper back to the mounting seat. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel stopper because of forgetting to bring the wheel stopper is greatly reduced, and the time for the user to find the wheel stopper is also greatly reduced, which is conducive to improving the safety and convenience of the user stopping the trolley.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Wheel chocks are also called car blockers, which are placed in front of or behind the wheel travel path to prevent the wheels from slipping due to potential energy conversion or other reasons after parking. Common wheel chocks also prevent slipping by locking the wheels. The new trolley wheel chock assembly fixes the wheel chock on the trolley through a mounting seat, so that the trolley always carries the wheel chock, which is convenient for users to take the wheel chock when using it, and also convenient for users to place the wheel chock, reducing the trolley without a built-in wheel chock. When parking on a slope, the trolley is prone to slipping, reducing the probability of users using dangerous non-professional wheel chocks because they forget to bring wheel chocks, and also reducing the time for users to find wheel chocks, which is conducive to improving the safety and convenience of users stopping the trolley;

[0030] 2. The wheel blocker is connected to the slide groove through the protrusion, and the mounting seat is light and convenient through the combination of the plates. The wheel blocker is placed on the baffle plate to prevent it from falling. The wheel blocker assembly is not only easy to disassemble by sliding, but also has a light overall structure.

[0031] 3. The leg assembly is used to further strengthen the parking stability of the trolley after the trolley is parked. The leg assembly usually includes a leg housing, a screw and a driving mechanism. The screw is at least partially located in the leg housing, and the driving mechanism drives the screw to retract and retract in the leg housing. Therefore, installing the new trolley wheel stopper assembly on the leg housing will not affect the operation of the leg assembly, and usually the installation position of the leg assembly is close to the wheel. Installing the new trolley wheel stopper assembly on the leg assembly allows the user to easily remove the wheel stopper from the mounting seat, thereby conveniently limiting the wheel from sliding down the slope, and also conveniently installing the wheel stopper back to the mounting seat. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel stopper because of forgetting to bring the wheel stopper is greatly reduced, and the time for the user to find the wheel stopper is also greatly reduced, which is conducive to improving the safety and convenience of the user stopping the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the new trolley wheel choke assembly in the present embodiment in the installed state and the disassembled state;

[0033] Figure 2 It is an exploded view of the new trolley in this embodiment.

[0034] Figure numerals: 1. mounting seat; 2. wheel stopper; 3. mounting plate; 4. slide groove; 5. protrusion; 6. arc plate; 7. baffle; 8. connecting piece; 9. mounting port; 10. support leg assembly; 11. support leg housing; 12. first connecting piece; 13. second connecting piece; 14. third connecting piece; 15. new trolley wheel stopper assembly; 16. vehicle body. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-2 This application is described in further detail.

[0036] Example 1

[0037] The embodiment of the present application discloses a novel trolley wheel chock assembly.

[0038] Reference Figure 1 and Figure 2, including a mounting seat 1 and a wheel blocker 2, the mounting seat 1 is arranged on the trolley, and the wheel blocker 2 is detachably connected to the mounting seat 1, the wheel blocker 2 is also called a car blocker, and is used to be placed in front of or behind the wheel travel path to prevent the wheel from slipping due to potential energy conversion or other reasons after parking. Common wheel blockers 2 also prevent slipping by locking the wheels, etc. The new trolley wheel blocker assembly 15 fixes the wheel blocker 2 on the trolley through the mounting seat 1, so that the trolley always carries the wheel blocker 2, which is convenient for the user to take the wheel blocker 2 when using it, and also convenient for the user to place the wheel blocker 2, reducing the trolley without a wheel blocker 2. When parking at a sloped position, it is easy to cause the car to slip, reducing the probability of the user using a dangerous non-professional wheel blocker because of forgetting to bring the wheel blocker 2, and also reducing the time for the user to find the wheel blocker 2, which is beneficial to improving the safety and convenience of the user stopping the trolley.

[0039] The mounting seat 1 includes a mounting plate 3, an arc plate 6 and a baffle plate 7. The mounting plate 3 is arranged on the trolley in the vertical direction. The arc plates 6 are respectively located in the middle of both sides of the mounting plate 3. The two arc plates 6 are bent toward each other, so that a slide groove 4 is formed between the two arc plates 6 and the mounting plate 3. The baffle plate 7 is located at the lower end of the mounting plate 3. The baffle plate 7 is integrally formed with the mounting plate 3, and the material thickness of each plate position of the entire mounting seat 1 is uniform, which effectively makes the material uniformly shrink during the integral molding process, and the mechanical properties of the overall structure are better. The wheel block 2 is a wedge-shaped block, which is the simplest and most effective One of the forms of the wheel stopper 2, for round or elliptical wheels, the wedge-shaped block can easily fit the arc-shaped gap between the ground and the front of the wheel, thereby effectively preventing the wheel from slipping, the material of the wheel stopper 2 is polyurethane, the wheel stopper 2 made of polyurethane has high strength, good toughness, wear resistance, and good elasticity, a protrusion 5 is integrally formed on the wedge-shaped block, the protrusion 5 can cooperate with the slide groove 4, so that the wheel stopper 2 can be detachably connected to the mounting seat 1 through the cooperation of the protrusion 5 and the slide groove 4, the wheel device assembly is not only convenient to slide and disassemble but also has a light structure.

[0040] Furthermore, in this embodiment, the mounting plate 3 can be set not only along the vertical direction of the trolley, but also along the vertical direction inclined to the trolley. It is only necessary to ensure that the wheel stopper 2 will not fall off as the trolley moves after being installed on the mounting seat 1.

[0041] Furthermore, in the present embodiment, the mounting seat 1 is arranged at a position close to the wheel of the trolley. By arranging the mounting seat 1 close to the wheel, the user can conveniently remove the wheel choke 2 from the mounting seat 1, thereby conveniently limiting the wheel from sliding down the slope, and also conveniently installing the wheel choke 2 back on the mounting seat 1. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel choke due to forgetting to bring the wheel choke 2 is greatly reduced, and the time for the user to find the wheel choke 2 is also greatly reduced, which is beneficial to improving the safety and convenience of the user in stopping the trolley.

[0042] Furthermore, in the present embodiment, a connecting member 8 for connecting the trolley may also be connected to the mounting plate 3, the connecting member 8 comprising a first connecting member 12, a second connecting member 13 and a third connecting member 14. The upper end portion of the mounting plate 3 is bent, and the end of the mounting plate 3 away from the slide groove 4 is vertically connected to the second connecting member 13, so that the mounting plate and the second connecting member 13 form a "T" shape, and the upper end of the second connecting member 13 is connected to the upper bent portion of the mounting plate 3, the first connecting member 12 is bolted parallel to the bent portion of the mounting plate 3, and the third connecting member 14 is bolted parallel to the lower end of the second connecting member 13. The first connecting member 12 and the third connecting member 14 are both used for connecting to the trolley. If the trolley is connected only by the mounting plate 3 arranged in the vertical direction or inclined to the vertical direction, the installable position of the mounting seat 1 on the trolley is relatively limited. The connecting member 8 can enrich the installation position of the mounting seat 1 on the trolley, thereby increasing the universal applicability of the new trolley wheel blocker assembly 15.

[0043] Furthermore, in the present embodiment, the mounting seat 1 can also be replaced with other forms of installation. The mounting seat 1 includes a mounting plate 3, and a slide groove 4 is provided on the upper portion of the mounting plate 3. The slide groove 4 cooperates with the protrusion 5 of the wheel blocker 2, so that the wheel blocker 2 is slidably connected to the slide groove 4 on the upper portion of the mounting seat 1 through the protrusion 5, thereby realizing a detachable connection between the wheel blocker 2 and the mounting seat 1. The mounting plate 3 with only the slide groove 4 is simple in structure and is relatively convenient to produce.

[0044] Furthermore, the mounting seat 1 in this embodiment can also be replaced with other forms. The mounting seat 1 has a slide groove 4, which can be a through groove. The upper end of the slide groove 4 is called a mounting port 9. The inner diameter of the slide groove 4 close to the mounting port 9 is larger than the inner diameter of the slide groove 4 away from the mounting port 9. The wheel blocker 2 is connected to the slide groove 4 of the mounting seat 1 through the protrusion 5, so that the slide groove 4 can be stably connected to the wheel blocker 2 without the baffle 7.

[0045] Furthermore, in this embodiment, the wheel chock 2 may also be in other forms in the prior art, as long as the wheel chock 2 can limit the wheel from sliding down the slope.

[0046] Furthermore, in this embodiment, the mounting seat 1 may also be in other shapes that can accommodate the wheel blocker 2, such as a box shape, a barrel shape, etc.

[0047] Furthermore, in the present embodiment, other detachable forms may be used between the wheel blocker 2 and the mounting base 1, such as a latch connection, an insertion connection, and other common detachable connection methods, so that the user can conveniently carry the wheel blocker 2 through the mounting base 1.

[0048] Example 2

[0049] The embodiment of the present application discloses a new type of trolley.

[0050] Reference Figure 1 and Figure 2 , including a vehicle body 16 and a novel trolley wheel blocker assembly 15 , wherein the novel trolley wheel blocker assembly 15 is connected to the vehicle body 16 .

[0051] The novel trolley wheel blocker assembly 15 comprises a mounting seat 1 and a wheel blocker 2. The mounting seat 1 is mounted on the trolley, and the wheel blocker 2 is detachably connected to the mounting seat 1.

[0052] The mounting seat 1 includes a mounting plate 3, an arc plate 6 and a baffle 7. The mounting plate 3 is arranged in the vertical direction. The arc plates 6 are respectively located in the middle of both sides of the mounting plate 3. The two arc plates 6 are bent toward each other, so that a slide groove 4 is formed between the two arc plates 6 and the mounting plate 3. The baffle 7 is located at the lower end of the mounting plate 3. The baffle 7 and the mounting plate 3 are integrally formed. The wheel blocker 2 is a wedge-shaped block. The material of the wheel blocker 2 is polyurethane. A protrusion 5 is integrally formed on the wedge-shaped block. The protrusion 5 cooperates with the slide groove 4, so that the wheel blocker 2 can be detachably connected to the mounting seat 1 through the cooperation of the protrusion 5 and the slide groove 4.

[0053] Furthermore, in the present embodiment, the vehicle body 16 includes a leg assembly 10, and the leg assembly 10 includes a leg shell 11, a screw and a driving mechanism, one end of the driving mechanism is connected to the inner end of the supporting leg shell, and the other end is connected to the screw, so that one end of the screw is located in the supporting leg shell, and the mounting plate 3 of the mounting seat 1 is mounted on one side of the leg shell 11 along the vertical direction, and the mounting position of the leg assembly 10 is close to the wheel. The new trolley wheel stopper assembly 15 is installed on the leg assembly 10, so that the user can easily remove the wheel stopper 2 from the mounting seat 1, thereby conveniently limiting the wheel from sliding down the slope, and also conveniently installing the wheel stopper 2 back to the mounting seat 1. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel stopper because of forgetting to bring the wheel stopper 2 is greatly reduced, and the time for the user to find the wheel stopper 2 is also greatly reduced, which is conducive to improving the safety and convenience of the user stopping the trolley.

[0054] Furthermore, in the present embodiment, a connecting member 8 for connecting the trolley may also be connected to the mounting plate 3, the connecting member 8 including a first connecting member 12, a second connecting member 13 and a third connecting member 14. The upper end portion of the mounting plate 3 is bent, and the end of the mounting plate 3 away from the slide groove 4 is vertically connected to the second connecting member 13, so that the mounting plate and the second connecting member 13 form a "T" shape, and the upper end of the second connecting member 13 is connected to the upper bent portion of the mounting plate 3, the first connecting member 12 is bolted parallel to the bent portion of the mounting plate 3, and the third connecting member 14 is bolted parallel to the lower end of the second connecting member 13; the first connecting member 12 is bolted to the upper end of the leg housing 11, and the third connecting member 14 is bolted to the lower end of the leg housing 11. The connecting member 8 not only stabilizes the connection tightness between the mounting seat 1 and the leg housing 11, but also surrounds the leg housing 11 by the connecting member 8 to make the connection aesthetically pleasing.

[0055] Furthermore, in this embodiment, the driving mechanism includes a motor and a reduction gearbox. The motor drives the screw to extend and retract through the reduction gearbox, and a travel switch is installed on the screw so that the screw touches the travel switch after it touches the ground, thereby cutting off the power to the motor, preventing the motor from continuing to work and avoiding damage to the driving mechanism.

[0056] Furthermore, in this embodiment, the mounting plate 3 can be set not only along the vertical direction of the trolley, but also along the vertical direction inclined to the trolley. It is only necessary to ensure that the wheel stopper 2 will not fall off as the trolley moves after being installed on the mounting seat 1.

[0057] Furthermore, in the present embodiment, the mounting seat 1 is arranged at a position close to the wheel of the trolley. By arranging the mounting seat 1 close to the wheel, the user can conveniently remove the wheel choke 2 from the mounting seat 1, thereby conveniently limiting the wheel from sliding down the slope, and also conveniently installing the wheel choke 2 back on the mounting seat 1. Since both disassembly and installation save the staff's energy, the probability of the user using a dangerous non-professional wheel choke due to forgetting to bring the wheel choke 2 is greatly reduced, and the time for the user to find the wheel choke 2 is also greatly reduced, which is beneficial to improving the safety and convenience of the user in stopping the trolley.

[0058] Furthermore, in the present embodiment, the mounting seat 1 can also be replaced with other forms of installation. The mounting seat 1 includes a mounting plate 3, and a slide groove 4 is provided on the upper portion of the mounting plate 3. The slide groove 4 cooperates with the protrusion 5 of the wheel blocker 2, so that the wheel blocker 2 is slidably connected to the slide groove 4 on the upper portion of the mounting seat 1 through the protrusion 5, thereby realizing a detachable connection between the wheel blocker 2 and the mounting seat 1. The mounting plate 3 with only the slide groove 4 is simple in structure and is relatively convenient to produce.

[0059] Furthermore, the mounting seat 1 in this embodiment can also be replaced with other forms. The mounting seat 1 has a slide groove 4, which can be a through groove. The upper end of the slide groove 4 is called a mounting port 9. The inner diameter of the slide groove 4 close to the mounting port 9 is larger than the inner diameter of the slide groove 4 away from the mounting port 9. The wheel blocker 2 is connected to the slide groove 4 of the mounting seat 1 through the protrusion 5, so that the slide groove 4 can be stably connected to the wheel blocker 2 without the baffle 7.

[0060] Furthermore, in this embodiment, the wheel chock 2 may also be in other forms in the prior art, as long as the wheel chock 2 can limit the wheel from sliding down the slope.

[0061] Furthermore, in this embodiment, the mounting seat 1 may also be in other shapes that can accommodate the wheel blocker 2, such as a box shape, a barrel shape, etc.

[0062] Furthermore, in the present embodiment, other detachable forms may be used between the wheel blocker 2 and the mounting base 1, such as a latch connection, an insertion connection, and other common detachable connection methods, so that the user can conveniently carry the wheel blocker 2 through the mounting base 1.

[0063] It should be noted that the various embodiments of the present application can be arbitrarily combined into a new embodiment if the solutions do not conflict and the technical solutions can coexist.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new type of trolley wheel blocker assembly, characterized in that: The invention comprises a mounting seat (1) and a wheel blocker (2); the mounting seat (1) is arranged on a trolley; the wheel blocker (2) is used to block the trolley from slipping; and the wheel blocker (2) is detachably connected to the mounting seat (1).

2. The novel wheel blocker assembly for a trolley according to claim 1 is characterized in that: The mounting seat (1) comprises a mounting plate (3), the mounting plate (3) is provided with a slide groove (4) in a vertical direction or inclined to the vertical direction, and the wheel blocker (2) is provided with a protrusion (5), and the protrusion (5) cooperates with the slide groove (4).

3. The novel wheel blocker assembly for a trolley according to claim 1 is characterized in that: The mounting seat (1) comprises a mounting plate (3), the mounting plate (3) being arranged on the trolley along the vertical direction of the trolley or along the vertical direction inclined to the trolley, arc plates (6) being respectively arranged on both sides of the mounting plate (3), a slide groove (4) being formed between the mounting plate (3) and the arc plates (6), a baffle plate (7) being arranged at the lower part of the mounting plate (3), a protrusion (5) being arranged on the wheel blocker (2), and the protrusion (5) being matched with the slide groove (4).

4. The novel trolley wheel blocker assembly according to claim 2 or 3 is characterized in that: The mounting plate (3) is provided with a connecting piece (8), and the connecting piece (8) is used to be connected to the trolley.

5. The novel wheel-stopper assembly for a trolley according to claim 2 is characterized in that: The upper end of the slide groove (4) is called the installation opening (9), the inner diameter of the end of the slide groove (4) near the installation opening (9) is larger than the inner diameter of the end of the slide groove (4) far from the installation opening (9), and the wheel blocker (2) can be at least partially located in the slide groove (4).

6. The novel wheel-stopper assembly for a trolley according to claim 1 is characterized in that: The wheel blocker (2) may be in the shape of a wedge-shaped block.

7. The novel wheel-stopper assembly for a trolley according to claim 6 is characterized in that: The wheel blocker (2) is made of polyurethane.

8. The novel wheel-stopper assembly for a trolley according to claim 1 is characterized in that: The mounting seat (1) is arranged close to the wheels of the trolley.

9. A new type of trolley, characterized in that: It comprises a vehicle body (16) and a novel trolley wheel choke assembly (15) as claimed in any one of claims 1 to 8, wherein the novel trolley wheel choke assembly (15) is connected to the vehicle body (16).

10. The new type of trolley according to claim 9 is characterized in that: The vehicle body (16) comprises a leg assembly (10), the leg assembly (10) comprises a leg shell (11), the novel trolley wheel blocker assembly (15) comprises a mounting seat (1) and a wheel blocker (2), the mounting seat (1) is connected to the leg shell (11), and the wheel blocker (2) is detachably connected to the mounting seat (1).

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