A folding frame structure for a tiger car

Abstract

The utility model discloses a folding type frame structure of tiger car relates to tiger car technical field, including lower frame, the top of lower frame is provided with upper frame, the left and right sides of lower frame and the inside of upper frame contact, the top fixedly connected with handle of upper frame, the left and right sides of lower frame all are fixedly connected with car wheel, the junction of upper frame and lower frame is provided with adjusting mechanism, the left and right sides of lower frame all are provided with fixed establishment. The utility model discloses through setting adjusting mechanism and fixed establishment. Adjusting mechanism contains swivel rod, ratchet wheel, pawl etc., removes screw rod when folding, and swivel rod rotates with upper frame, and ratchet wheel rotates synchronously, and pawl limits reverse rotation, and fixed establishment has fixed plate, screw rod etc., and when unfolding, rotates knob and makes screw rod penetrate fixed plate, upper frame to lower frame inner wall and fixes upper frame, solve the problem that traditional tiger car can not be folded, and need larger storage space when not using, and the flexibility is limited.

Description

Technical Field

[0001] This utility model relates to the field of slot car technology, specifically a folding frame structure for a slot car. Background Technology

[0002] A handcart, also known as a wheelbarrow, is a common type of manual transport tool with two wheels and a platform for carrying goods. It is designed to be sturdy and durable, with a high load-bearing capacity. The frame and wheels are typically made of strong materials such as steel, and the wheels are made of wear-resistant materials. Handcarts are widely used in industrial, commercial, and domestic settings for moving goods, tools, and other items, significantly improving transport efficiency.

[0003] Traditional folding carts cannot be folded, requiring a large storage space when not in use; they are not portable, making them difficult to carry to different locations as easily as folding carts; their flexibility is limited, as their large size occupies more space in logistics and transportation, increasing transportation costs and resulting in higher overall transportation costs. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a foldable frame structure for a slot cart, which facilitates folding of the slot cart, reduces its space occupation when not in use and transportation costs, and improves the portability of the slot cart. This solves the problem that traditional slot carts cannot be folded, require a large storage space when not in use, and have limited flexibility.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding frame structure for a slot machine, including a lower frame, an upper frame at the top of the lower frame, the left and right sides of the lower frame contacting the inner side of the upper frame, a handle fixedly connected to the top of the upper frame, wheels fixedly connected to the left and right sides of the lower frame, an adjustment mechanism at the connection between the upper frame and the lower frame, and a fixing mechanism on the left and right sides of the lower frame.

[0006] The adjustment mechanism is used to fold the upper frame to the rear of the lower frame;

[0007] The fixing mechanism is used to fix the upper frame when it is deployed and in use.

[0008] In a preferred embodiment of this utility model, the adjusting mechanism includes a rotating rod, both ends of which extend to the outer side of the lower frame and are fixedly connected to the upper frame. The surface of the rotating rod is rotatably connected to the inner wall of the lower frame. A ratchet is fixedly sleeved on the surface of the rotating rod. A connecting rod is fixedly connected to the inner side of the lower frame. A pawl is hinged to the other end of the connecting rod. The ratchet and the pawl work together.

[0009] As a preferred embodiment of this utility model, the fixing mechanism includes a fixing plate fixedly connected to the left and right sides of the lower frame. A screw is drivenly connected to the inner wall of the fixing plate. One end of the screw passes through the fixing plate and the upper frame and extends to the inner wall of the lower frame. The surface of the screw is drivenly connected to the inner walls of the upper frame and the lower frame. The other end of the screw extends to the side of the fixing plate away from the upper frame and is fixedly connected to a knob.

[0010] As a preferred embodiment of this utility model, a torsion spring is fixedly connected to the side of the pawl near the connecting rod, and the other end of the torsion spring is fixedly connected to the inner side of the lower frame. The torsion spring is sleeved on the surface of the connecting rod.

[0011] As a preferred embodiment of this invention, a lever is fixedly connected to the top of the pawl.

[0012] As a preferred embodiment of this invention, a support column is fixedly connected to the rear side of the upper frame.

[0013] As a preferred embodiment of this invention, the surface of the grip is fixedly covered with an anti-slip sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model solves the problems of traditional folding carts being unable to fold, requiring a large storage space when not in use, and limiting their flexibility by setting up an adjustment mechanism and a fixing mechanism. The adjustment mechanism includes a rotating rod, a ratchet, and a pawl. When unfolded, rotating the knob causes the folding rod to pass through the fixing plate, the upper frame, and the inner wall of the lower frame to fix the upper frame. This achieves the effect of easy folding of the folding cart, reducing its space occupation when not in use and transportation costs, thus improving the portability of the folding cart.

[0016] 2. This utility model, by setting an adjustment mechanism, removes the screw when folding, the rotating rod rotates with the upper frame, the ratchet rotates synchronously, and the pawl restricts its reverse rotation, reducing its volume when not in use and improving the convenience of the trolley.

[0017] 3. This utility model, by setting up a fixing mechanism, allows the upper frame to be fixed by rotating the knob when unfolded, which causes the screw to pass through the fixing plate, the upper frame and the inner wall of the lower frame. This effectively fixes the upper frame in the unfolded state, enhancing the stability and sturdiness of the upper frame during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partial structural diagram of the present invention;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a structural diagram of the fixing mechanism;

[0022] Figure 5 This is a schematic diagram of the structure of this utility model in its folded state.

[0023] In the diagram: 1. Lower frame; 2. Upper frame; 3. Handlebar; 4. Wheel; 5. Adjustment mechanism; 501. Rotating rod; 502. Ratchet; 503. Connecting rod; 504. Pawl; 6. Fixing mechanism; 601. Fixing plate; 602. Screw; 603. Knob; 7. Torsion spring; 8. Lever; 9. Support column; 10. Anti-slip sleeve. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1-5This is the first embodiment of the present utility model, which provides a lower frame 1, an upper frame 2 is provided on the top of the lower frame 1, the left and right sides of the lower frame 1 are in contact with the inner side of the upper frame 2, a handle 3 is fixedly connected to the top of the upper frame 2, wheels 4 are fixedly connected to the left and right sides of the lower frame 1, an adjustment mechanism 5 is provided at the connection between the upper frame 2 and the lower frame 1, and a fixing mechanism 6 is provided on the left and right sides of the lower frame 1.

[0030] The adjustment mechanism 5 is used to fold the upper frame 2 to the rear side of the lower frame 1;

[0031] The fixing mechanism 6 is used to fix the upper frame 2 when it is unfolded and in use.

[0032] Specifically, it achieves the effect of making the card cart easy to fold, reducing its space occupation when not in use and transportation costs, thus improving the portability of the card cart.

[0033] Furthermore, when folding, the screw 602 is removed, the rotating rod 501 rotates with the upper frame 2, the ratchet 502 rotates synchronously, and the pawl 504 restricts its reverse rotation; when unfolding, the knob 603 is turned so that the screw 602 passes through the fixing plate 601, the upper frame 2 to the inner wall of the lower frame 1 to fix the upper frame 2.

[0034] A support column 9 is fixedly connected to the rear side of the upper frame 2. The support column 9 is fixed to the rear side of the upper frame 2. When the upper frame 2 is unfolded and laid flat with the lower frame 1 for loading, the support column 9 contacts the ground, providing support for both the upper and lower frames 1.

[0035] A non-slip sleeve 10 is fixedly fitted onto the surface of the handle 3. The non-slip sleeve 10 increases the friction between the handle 3 and the user's hand, preventing slippage when the user grips the handle 3 to push the slot cart, thus reducing the risk of accidents during operation.

[0036] Example 2

[0037] The second embodiment of this utility model provides an adjustment mechanism 5 including a rotating rod 501. Both ends of the rotating rod 501 extend to the outside of the lower frame 1 and are fixedly connected to the upper frame 2. The surface of the rotating rod 501 is rotatably connected to the inner wall of the lower frame 1. A ratchet 502 is fixedly sleeved on the surface of the rotating rod 501. A connecting rod 503 is fixedly connected to the inner side of the lower frame 1. A pawl 504 is hinged to the other end of the connecting rod 503. The ratchet 502 and the pawl 504 are used in cooperation.

[0038] Specifically, by adjusting mechanism 5, the card cart can be folded, reducing its volume when not in use, improving the card cart's convenience, ensuring the stability and unidirectionality of the upper frame 2 during the folding process, preventing reverse rotation after folding, and improving the stability of the card cart after folding.

[0039] Furthermore, the two ends of the rotating rod 501 are fixed to the upper frame 2, and its surface is rotatably connected to the inner wall of the lower frame 1. When the upper frame 2 needs to be folded, the screw 602 is moved out from the inner wall of the upper frame 2 and the lower frame 1. Then the rotating rod 501 rotates with the upper frame 2, and the ratchet 502 is fixed on the rotating rod 501 and rotates synchronously. During the rotation of the ratchet 502, the pawl 504 cooperates with the ratchet 502 to restrict the ratchet 502 from rotating in the opposite direction, thereby realizing the adjustment of the upper frame 2 to fold backward.

[0040] A torsion spring 7 is fixedly connected to the side of the pawl 504 near the connecting rod 503. The other end of the torsion spring 7 is fixedly connected to the inner side of the lower frame 1. The torsion spring 7 is sleeved on the surface of the connecting rod 503. The torsion spring 7 is sleeved on the surface of the connecting rod 503, with one end connected to the pawl 504 and the other end fixed to the inner side of the lower frame 1. When the ratchet 502 rotates, causing the pawl 504 to move, the torsion spring 7 deforms and generates elastic force. Under the action of the elastic force, the pawl 504 always maintains close contact with the ratchet 502. The design of the torsion spring 7 ensures a tight fit between the pawl 504 and the ratchet 502 and also prevents the pawl 504 from rotating due to external forces.

[0041] A lever 8 is fixedly connected to the top of the pawl 504. The lever 8 is fixed to the top of the pawl 504. When it is necessary to disengage the ratchet 502 from the pawl 504 and unfold the upper frame 2, the lever 8 is moved to rotate the pawl 504 around the connecting rod 503, causing the pawl 504 to separate from the ratchet 502 and releasing the restriction on the ratchet 502. The lever 8 provides the user with a convenient operating component, making the disengagement of the pawl 504 from the ratchet 502 easier and more convenient, improving operational flexibility and enhancing the user experience.

[0042] Example 3

[0043] The third embodiment of this utility model provides a fixing mechanism 6 including a fixing plate 601 fixedly connected to the left and right sides of the lower frame 1. A screw 602 is drivenly connected to the inner wall of the fixing plate 601. One end of the screw 602 passes through the fixing plate 601 and the upper frame 2 and extends to the inner wall of the lower frame 1. The surface of the screw 602 is drivenly connected to the inner walls of the upper frame 2 and the lower frame 1. The other end of the screw 602 extends to the side of the fixing plate 601 away from the upper frame 2 and is fixedly connected to a knob 603.

[0044] Specifically, the fixing mechanism 6 has a simple structure and is easy to operate. The screw 602 can effectively fix the upper frame 2 in the unfolded state, which enhances the stability and firmness of the frame 2 during use, avoids the normal use of the car due to the upper frame 2 loosening, and improves the safety during use.

[0045] Furthermore, the fixing plate 601 is fixed on both sides of the lower frame 1, and the screw 602 is connected to the inner wall of the fixing plate 601. When the upper frame 2 is unfolded for use, the knob 603 is turned so that one end of the screw 602 passes through the fixing plate 601 and the upper frame 2 and extends to the inner wall of the lower frame 1. Through the transmission connection between the screw 602 and the inner walls of the upper frame 2 and the lower frame 1, the upper frame 2 and the lower frame 1 are fixed together to prevent the upper frame 2 from shaking during use.

[0046] Working principle:

[0047] When the upper frame 2 needs to be folded, the screw 602 is moved out from the inner wall of the upper frame 2 and the lower frame 1. Then, the rotating rod 501 rotates with the upper frame 2, and the ratchet 502, fixed on the rotating rod 501, rotates synchronously. When the ratchet 502 rotates and causes the pawl 504 to move, the torsion spring 7 deforms and generates elastic force. Under the action of elastic force, the pawl 504 always maintains close contact with the ratchet 502. The design of the torsion spring 7 ensures the tight fit between the pawl 504 and the ratchet 502, and also prevents the pawl 504 from folding. Due to external force causing rotation, the pawl 504 cooperates with the ratchet 502 to restrict the ratchet 502 from rotating in the opposite direction, thereby realizing the adjustment of the upper frame 2 to fold backward. Through the adjustment mechanism 5, the cart can be folded, reducing its volume when not in use, improving the cart's convenience, ensuring the stability and unidirectionality of the upper frame 2 during the folding process, preventing reverse rotation after folding, and improving the stability of the cart after folding. When unfolding the upper frame 2, the lever 8 is turned. The pawl 504 rotates around the connecting rod 503, causing the pawl 504 to separate from the ratchet 502, thus releasing the restriction on the ratchet 502. The lever 8 provides a convenient operating component for the user, making the operation of disengaging the pawl 504 from the ratchet 502 easier and more convenient, improving operational flexibility and enhancing the user experience. When the upper frame 2 and the lower frame 1 are on the same plane, the knob 603 is rotated to make one end of the screw 602 pass through the fixing plate 601 and the upper frame 2 and extend to the inner wall of the lower frame 1. Through the transmission connection between the screw 602 and the inner walls of the upper frame 2 and the lower frame 1, the upper frame 2 and the lower frame 1 are fixed together, preventing the upper frame 2 from shaking during use. The fixing mechanism 6 has a simple structure and is easy to operate. The tightening action of the screw 602 can effectively fix the upper frame 2 in the unfolded state, enhancing the stability and firmness of the upper frame 2 during use, avoiding the impact of the loose upper frame 2 on the normal use of the slot machine, and improving the safety during use.

[0048] In summary, by combining the adjustment and fixing mechanisms, the foldable slot cart is made easier to fold, reducing its space-consuming volume when not in use and its transportation costs, thus improving its portability.

[0049] The lower frame, upper frame, adjustment mechanism, and fixing mechanism used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0050] It should be noted that (screw, ratchet, pawl, torsion spring, knob and anti-slip sleeve) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0053] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A folding frame structure for a tiger-shaped cart, characterized in that: Includes a lower frame (1), an upper frame (2) is provided on the top of the lower frame (1), the left and right sides of the lower frame (1) are in contact with the inner side of the upper frame (2), a handle (3) is fixedly connected to the top of the upper frame (2), wheels (4) are fixedly connected to the left and right sides of the lower frame (1), an adjustment mechanism (5) is provided at the connection between the upper frame (2) and the lower frame (1), and a fixing mechanism (6) is provided on the left and right sides of the lower frame (1). The adjustment mechanism (5) is used to fold the upper frame (2) to the rear side of the lower frame (1); The fixing mechanism (6) is used to fix the upper frame (2) when it is deployed and in use.

2. The folding frame structure of a tiger cart according to claim 1, characterized in that: The adjustment mechanism (5) includes a rotating rod (501), both ends of which extend to the outside of the lower frame (1) and are fixedly connected to the upper frame (2). The surface of the rotating rod (501) is rotatably connected to the inner wall of the lower frame (1). A ratchet (502) is fixedly sleeved on the surface of the rotating rod (501). A connecting rod (503) is fixedly connected to the inner side of the lower frame (1). A pawl (504) is hinged to the other end of the connecting rod (503). The ratchet (502) and the pawl (504) are used together.

3. The folding frame structure of a tiger cart according to claim 1, characterized in that: The fixing mechanism (6) includes a fixing plate (601) fixedly connected to the left and right sides of the lower frame (1). The inner wall of the fixing plate (601) is connected to a screw (602). One end of the screw (602) passes through the fixing plate (601) and the upper frame (2) and extends to the inner wall of the lower frame (1). The surface of the screw (602) is connected to the inner wall of the upper frame (2) and the lower frame (1). The other end of the screw (602) extends to the side of the fixing plate (601) away from the upper frame (2) and is fixedly connected to a knob (603).

4. The folding frame structure of a tiger cart according to claim 2, characterized in that: A torsion spring (7) is fixedly connected to the side of the pawl (504) near the connecting rod (503), and the other end of the torsion spring (7) is fixedly connected to the inner side of the lower frame (1). The torsion spring (7) is sleeved on the surface of the connecting rod (503).

5. The folding frame structure of a tiger cart according to claim 4, characterized in that: A lever (8) is fixedly connected to the top of the pawl (504).

6. The folding frame structure of a tiger cart according to claim 1, characterized in that: The rear side of the upper frame (2) is fixedly connected to a support column (9).

7. The folding frame structure of a tiger cart according to claim 6, characterized in that: The grip (3) is fixedly fitted with an anti-slip sleeve (10).

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