Braking device for chassis of buggy

Abstract

The utility model provides a buggy chassis brake device, which relates to the technical field of buggies and comprises a frame, a group of mounting shafts are inserted in the frame, two ends of the group of mounting shafts are rotatably connected with wheels, a steering rod is rotatably connected in the frame, a connecting plate is fixedly mounted at the top of the steering rod, and a moving shaft is inserted in the connecting plate; according to the brake device, the handle is pressed downwards, the first brake cable and the second brake cable are used for pulling the end, close to the handle, of the brake plate, so that the brake plate leaves one side of the brake disc, wheels rotate freely, when the handle loses pressure, the handle is reset under the action of the torsion spring, and at the moment, the first brake cable and the second brake cable also lose the tension action; therefore, the brake plate returns to the original position and is close to one side of the brake disc, rotation of the wheels is limited, the wheels are in a static state, the problem of insufficient brake sensitivity is solved, the brake efficiency is improved, and a brake device of the pull car is more sensitive.

Description

Technical Field

[0001] The utility model relates to the technical field of carts, in particular to a braking device for the chassis of a cart. Background Art

[0002] A cart is a common means of transportation, usually referring to pulling a vehicle by human, animal or mechanical force to carry goods or people. Carts have the characteristics of flexibility, convenience and relatively low cost. During production and use, carts are equipped with braking devices to keep them stationary when needed and avoid the situation of rolling away.

[0003] In the prior art, the braking sensitivity of carts is insufficient: the reaction is slow, and it cannot brake in a timely and effective manner, which may lead to dangerous situations; moreover, the braking force is uneven, with strong braking effects in some areas and weak braking effects in some areas, affecting the braking stability. Content of the Utility Model

[0004] The utility model mainly provides a braking device for the chassis of a cart with high sensitivity and uniform braking force.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A braking device for the chassis of a cart, comprising: a frame, a set of mounting shafts are inserted inside the frame, and both ends of the set of mounting shafts are rotatably connected to wheels, a steering rod is rotatably connected inside the frame, a connecting plate is fixedly installed at the top of the steering rod, a moving shaft is inserted inside the connecting plate, the moving shaft is rotatably connected to the connecting plate, a handle is rotatably connected inside the connecting plate, a torsion spring is sleeved on the outer surface of the moving shaft, and one end of the torsion spring is fixedly connected to one end of the handle close to the frame.

[0006] Preferably, brake discs are fixedly installed on the opposite sides of a set of wheels away from the handle, and brake plates are arranged on the opposite sides of the set of brake discs.

[0007] Preferably, a set of the brake plates are fixedly installed on one side of the frame, and the outer surfaces of the set of brake plates are respectively connected to a first brake wire and a second brake wire.

[0008] Preferably, one ends of the first brake wire and the second brake wire are both fixedly connected to one end of the handle.

[0009] Preferably, a control wire core is fixedly installed at the bottom of the connecting plate, and a pressing wire is inserted inside the control wire core.

[0010] Preferably, the pressing wire penetrates and is inserted inside the connecting plate, and one end of the pressing wire is fixedly connected to one end of the handle away from the frame.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows.

[0012] 1. In the present utility model, by pressing down the handle, the first brake wire and the second brake wire are used to pull one end of the brake plate close to the handle, so that the brake plate moves away from one side of the brake disc, enabling the wheel to rotate freely. When the pressure on the handle is removed, the handle returns to its original position under the action of the torsion spring. At this time, the first brake wire and the second brake wire also lose their pulling force, causing the brake plate to return to its original position and close to one side of the brake disc, restricting the rotation of the wheel and keeping the wheel in a stationary state. This design solves the problem of insufficient brake sensitivity, improves the braking efficiency, and makes the braking device of the cart more sensitive.

[0013] 2. In the present utility model, by respectively installing the first brake wire and the second brake wire on one side of a set of brake plates, and fixedly connecting one end of each of the first brake wire and the second brake wire to one end of the handle. When adjusting the state of the handle, the forces received by the set of brake plates are the same, facilitating the uniform control of the braking forces on both sides, thereby ensuring the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the bottom view of the braking device for the cart chassis proposed by the present utility model;

[0015] Figure 2 is the side view of the braking device for the cart chassis proposed by the present utility model;

[0016] Figure 3 is the top view of the braking device for the cart chassis proposed by the present utility model;

[0017] Figure 4 is the Figure 3 enlarged view of part A in the braking device for the cart chassis proposed by the present utility model;

[0018] Figure 5 is the Figure 2 enlarged view of part B in the braking device for the cart chassis proposed by the present utility model.

[0019] Legend Explanation: 101, frame; 102, wheel; 103, steering rod; 104, connecting plate; 105, moving shaft; 106, handle; 107, torsion spring; 108, brake disc; 109, brake plate; 110, first brake wire; 111, second brake wire; 112, control wire core; 113, pressing-down wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a braking device for a cart chassis, including: a frame 101, a set of mounting shafts are inserted inside the frame 101, and both ends of the set of mounting shafts are rotatably connected to wheels 102. A steering rod 103 is rotatably connected inside the frame 101. A connecting plate 104 is fixedly installed at the top of the steering rod 103. A moving shaft 105 is inserted inside the connecting plate 104, and the moving shaft 105 is rotatably connected to the connecting plate 104. A handle 106 is rotatably connected inside the connecting plate 104. A torsion spring 107 is sleeved on the outer surface of the moving shaft 105, and one end of the torsion spring 107 is fixedly connected to one end of the handle 106 close to the frame 101; by inserting a set of connecting shafts inside the frame 101 and rotatably connecting wheels 102 at both ends of the set of connecting shafts, the wheels 102 are arranged on both sides of the frame 101, facilitating the movement of the frame 101, thereby realizing the basic function of pulling the cart. Then, a steering rod 103 is rotatably connected inside the frame 101, facilitating the control of its moving direction when using the cart; secondly, a connecting plate 104 is fixedly installed at the top of the steering rod 103, a moving shaft 105 is inserted inside the connecting plate 104, the moving shaft 105 is rotatably connected to the connecting plate 104, a handle 106 is rotatably connected inside the connecting plate 104, a torsion spring 107 is sleeved on the outer surface of the moving shaft 105, and one end of the torsion spring 107 is fixedly connected to one end of the handle 106 close to the frame 101. When in use, by pressing down the handle 106 to drag the cart, the torsion spring 107 undergoes elastic deformation during the process of pressing down the handle 106. When the cart is parked at a certain position and the hand relaxes the pressure applied to the handle 106, the torsion spring 107 loses the pressure and restores elastic deformation, thereby making the handle 106 return to the upright position and being perpendicular to the frame 101.

[0023] As Figures 1-5 shown, brake discs 108 are fixedly installed on the opposite sides of a set of wheels 102 away from the handle 106, and a brake plate 109 is arranged on the opposite sides of the set of brake discs 108; by fixedly installing brake discs 108 on the opposite sides of a set of wheels 102 away from the handle 106 and fixedly installing a set of brake plates 109 on one side of the frame 101, the set of brake plates 109 is arranged on the opposite sides of the set of brake discs 108. By using the contact between the brake plate 109 and the brake disc 108 to generate frictional force, the rotation of the wheels 102 is controlled.

[0024] As Figures 1-5As shown in the figure, a set of brake plates 109 are fixedly installed on one side of the vehicle frame 101. The outer surfaces of the set of brake plates 109 are respectively connected to the first brake cable 110 and the second brake cable 111. By fixedly installing the brake plates 109 on one side of the vehicle frame 101, it is convenient to control the movement state of the wheel 102. Then, by respectively connecting the first brake cable 110 and the second brake cable 111 to the outer surfaces of the set of brake plates 109, the positions of the brake plates 109 are controlled by pulling the brake plates 109 through the first brake cable 110 and the second brake cable 111, thereby controlling the movement state of the wheel 102.

[0025] As Figures 1-3 shown, one end of each of the first brake cable 110 and the second brake cable 111 is fixedly connected to one end of the handle 106. By fixedly connecting one end of each of the first brake cable 110 and the second brake cable 111 to one end of the handle 106, when the handle 106 is pressed down, the first brake cable 110 and the second brake cable 111 will pull the end of the brake plate 109 close to the handle 106, causing the brake plate 109 to leave one side of the brake disc 108, thereby moving the vehicle frame 101. When the handle 106 loses pressure, the handle 106 returns to its original position under the action of the torsion spring 107. At this time, the first brake cable 110 and the second brake cable 111 also lose their pulling force, so that the brake plate 109 returns to its original position, close to one side of the brake disc 108, restricting the rotation of the wheel 102 and making the wheel 102 in a stationary state.

[0026] As Figure 1 and Figure 4 shown, a control cable core 112 is fixedly installed at the bottom of the connecting plate 104, and a pressing cable 113 is inserted into the control cable core 112. By fixedly installing the control cable core 112 on one side of the connecting plate 104 and arranging the pressing cable 113 inside the control cable core 112, inserting the pressing cable 113 through the connecting plate 104, and fixedly connecting one end of the pressing cable 113 to the end of the handle 106 close to the vehicle frame 101, when the handle 106 is stressed, the pressing cable 113 will extend out from the inside of the control cable core 112. When the pressure is lost, the control cable core 112 controls the pressing cable 113 to retract, assisting the torsion spring 107 to restore the vertical state of the handle 106.

[0027] As Figure 1 and Figure 4 shown, the pressing cable 113 is inserted through the connecting plate 104, and one end of the pressing cable 113 is fixedly connected to the end of the handle 106 far from the vehicle frame 101. By fixedly connecting one end of the pressing cable 113 to the end of the handle 106 far from the vehicle frame 101, when the handle 106 is stressed, the pressing cable 113 will extend out from the inside of the control cable core 112. When the pressure is lost, the control cable core 112 controls the pressing cable 113 to retract, assisting the torsion spring 107 to restore the vertical state of the handle 106.

[0028] Usage method and working principle of this device: When this device is in use, first, insert a set of connecting shafts inside the vehicle frame 101, and rotate and connect wheels 102 at both ends of the set of connecting shafts. Set the wheels 102 on both sides of the vehicle frame 101 to facilitate moving the vehicle frame 101, thereby realizing the basic function of pulling a cart. Then, rotatably connect a steering rod 103 inside the vehicle frame 101 to facilitate controlling the moving direction when pulling the cart. Secondly, fixedly install a connecting plate 104 at the top of the steering rod 103, insert a moving shaft 105 inside the connecting plate 104, set the moving shaft 105 to be rotatably connected with the connecting plate 104, rotatably connect a handle 106 inside the connecting plate 104, sleeved a torsion spring 107 on the outer surface wall of the moving shaft 105, and fixedly connect one end of the torsion spring 107 with one end of the handle 106 close to the vehicle frame 101. When in use, by pressing down the handle 106 to drag the cart, the torsion spring 107 undergoes elastic deformation during the process of pressing down the handle 106. When the cart is parked at a certain position and the hand relaxes the pressure applied to the handle 106, the torsion spring 107 loses pressure and restores elastic deformation, thereby making the handle 106 return to the upright position and be perpendicular to the vehicle frame 101. Then, fixedly install a brake disc 108 on the relative side of a set of wheels 102 far from the handle 106, fixedly install a set of brake plates 109 on one side of the vehicle frame 101, set the set of brake plates 109 on the relative side of the set of brake discs 108, respectively install a first brake wire 110 and a second brake wire 111 on one side of the set of brake plates 109, and fixedly connect one ends of the first brake wire 110 and the second brake wire 111 with one end of the handle 106. When pressing down the handle 106, the first brake wire 110 and the second brake wire 111 will pull the end of the brake plate 109 close to the handle 106, making the brake plate 109 leave one side of the brake disc 108, thereby moving the vehicle frame 101. When the handle 106 loses pressure, the handle 106 returns to the upright position under the action of the torsion spring 107. At this time, the first brake wire 110 and the second brake wire 111 also lose the pulling force, thereby making the brake plate 109 return to its original position and close to one side of the brake disc 108, restricting the rotation of the wheels 102 and making the wheels 102 in a stationary state. This design solves the problem of insufficient brake sensitivity, accelerates the braking efficiency, and makes the braking device of the cart more sensitive. Finally, fixedly install a control wire core 112 on one side of the connecting plate 104, set a pressing-down wire 113 inside the control wire core 112, insert the pressing-down wire 113 through the inside of the connecting plate 104, and fixedly connect one end of the pressing-down wire 113 with one end of the handle 106 close to the vehicle frame 101. When the handle 106 is stressed, the pressing-down wire 113 will extend out from the inside of the control wire core 112. When losing pressure, the control wire core 112 controls the pressing-down wire 113 to retract, assisting the torsion spring 107 to restore the vertical state of the handle 106.

[0029] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tractor chassis brake device, characterized in that: include: A vehicle frame (101), wherein a group of mounting shafts are inserted inside the vehicle frame (101), and both ends of the group of mounting shafts are rotatably connected to wheels (102), the inside of the vehicle frame (101) is rotatably connected to a steering rod (103), a connecting plate (104) is fixedly installed on the top of the steering rod (103), a moving shaft (105) is inserted inside the connecting plate (104), the moving shaft (105) is rotatably connected to the connecting plate (104), the inside of the connecting plate (104) is rotatably connected to a handle (106), a torsion spring (107) is sleeved on the outer wall of the moving shaft (105), and one end of the torsion spring (107) is fixedly connected to one end of the handle (106) close to the vehicle frame (101).

2. The tractor chassis brake device according to claim 1, characterized in that: A brake disc (108) is fixedly mounted on the opposite side of a group of wheels (102) away from the handle (106), and a brake plate (109) is arranged on the opposite side of a group of brake discs (108).

3. The trolley chassis brake device according to claim 2, characterized in that: A group of brake plates (109) are fixedly mounted on one side of the vehicle frame (101), and the outer walls of the group of brake plates (109) are respectively connected to the first brake line (110) and the second brake line (111).

4. The tractor chassis brake device according to claim 3, characterized in that: One end of the first brake line (110) and one end of the second brake line (111) are both fixedly connected to one end of the handle (106).

5. The tractor chassis brake device according to claim 1, characterized in that: A control wire core (112) is fixedly mounted on the bottom of the connection plate (104), and a downward pressure pull wire (113) is inserted into the interior of the control wire core (112).

6. The tractor chassis brake device according to claim 5, characterized in that: The downward pressing wire (113) is inserted through the interior of the connecting plate (104), and one end of the downward pressing wire (113) is fixedly connected to an end of the handle (106) away from the vehicle frame (101).

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