Brake device

Abstract

The utility model relates to the technical field of brakes, and discloses a brake device which is installed at the bottom of storage and transportation equipment, the storage and transportation equipment is provided with at least two trundles, and each of the two trundles comprises a wheel carrier and a tire; the brake device comprises a fixing ring, a transmission shaft, a pedal plate, two guide grooves, two brake rods and two brake plates. The fixing ring is fixed to the bottom of storage and transportation equipment. The transmission shaft is rotatably connected with the fixing ring, and two radial flanges are arranged at the two ends of the transmission shaft respectively; the pedal is fixedly connected to the middle of the transmission shaft; the installation distance between the two guide grooves is equal to the wheel distance between the two trundles. The two brake rods are respectively connected with the two guide grooves in a sliding manner; the two brake plates are rotationally connected with the two wheel carriers correspondingly, and one end of each brake plate is located on the movement path of the brake rod. After the pedal plate is stressed, the transmission shaft and the radial flange sequentially rotate, and the radial flange presses one end of the brake plate through the brake rod until the brake plate rotates to abut against a tire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake, in particular to a brake device. BACKGROUND

[0002] At present, the existing brake of caster is separately installed on each caster, and it is necessary to step on one caster and then step on another caster to stop, which is very inconvenient, and it is not safe to operate in this way when the full load is heavy, and the safety risk of workers and pedestrians will be caused when going uphill or downhill. Therefore, a device capable of simultaneously braking multiple casters is needed. SUMMARY

[0003] The purpose of the present application is to provide a brake device capable of simultaneously braking multiple casters.

[0004] In order to achieve the above-mentioned purpose, the present application provides a brake device, which is installed at the bottom of a storage and transportation equipment, the storage and transportation equipment is provided with at least two casters, and each caster comprises a wheel frame and a tire; the brake device comprises: a fixing ring, which is fixed at the bottom of the storage and transportation equipment; a transmission shaft, which is rotatably connected with the fixing ring, and two radial flanges are arranged at two ends of the transmission shaft, respectively; a foot pedal, which is fixedly connected with the middle part of the transmission shaft; two guide grooves, which are fixedly connected with the two casters, respectively, and the installation spacing of the two guide grooves is equal to the wheel track of the two casters, and the two guide grooves are placed along the vertical direction; two brake levers, which are slidably connected with the two guide grooves, respectively; and two brake plates, which are rotatably connected with the two wheel frames, respectively, and one end of each brake plate is located on the movement path of the brake lever; wherein the foot pedal drives the transmission shaft to rotate after being stressed, and at the same time, the radial flanges rotate and press the brake levers to move downward, so that the brake levers press one end of the brake plate until the brake plate rotates to abut against the tire.

[0005] In an embodiment, the brake device further comprises an elastic member; the elastic member is installed between the wheel frame and the brake plate, and is used to provide a force for resetting the brake plate and the brake lever.

[0006] In another embodiment, the brake device further comprises a torsion spring, which is sleeved on the transmission shaft, and the torsion spring comprises two torsion arms, one of which abuts against the bottom of the storage and transportation equipment, and the other of which abuts against the foot pedal, and the torsion spring is used to provide a force for resetting the foot pedal.

[0007] In still another embodiment, the elastic member is an elastic rod, one end of the elastic rod is fixed with the wheel frame, and the other end of the elastic rod is supported below the end of the brake plate.

[0008] In yet another embodiment, the stressed end of the foot pedal is provided with an antiskid rubber sleeve.

[0009] In an embodiment, the middle part of the transmission shaft is concave downward, so as to increase the spacing between the foot pedal and the bottom of the storage and transportation equipment.

[0010] In another embodiment, the length of the foot pedal is greater than the distance from the transmission shaft to the side of the storage and transportation device.

[0011] In one embodiment, a push handle is provided on the storage and transportation device, and the brake device is installed on one side close to the push handle.

[0012] Compared with the prior art, the brake device has the beneficial effects that:

[0013] According to the above scheme, since the installation spacing of the two brake rods is equal to the installation spacing of the two casters, when the foot pedal is stepped on, the rotating transmission shaft can simultaneously drive the two brake rods on both sides to extend downward and press the brake plate until the brake plate is in contact with the two casters, so as to simultaneously brake the two casters, and the two brake rods can effectively brake when fully loaded, and the two brake rods make it difficult for the casters to slip after braking. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of a brake device according to an embodiment of the present application.

[0015] Figure 2 is a partial structural schematic view of a foot pedal of a brake device according to an embodiment of the present application.

[0016] Figure 3 is a structural schematic view of a foot pedal of a brake device according to an embodiment of the present application.

[0017] Figure 4 is a structural schematic view of a transmission shaft of a brake device according to an embodiment of the present application.

[0018] Figure 5 is a structural schematic view of a caster of a brake device according to an embodiment of the present application.

[0019] REFERENCE SIGNS:

[0020] 10, brake device, 101, fixed ring, 102, transmission shaft, 1021, radial flange, 103, foot pedal, 104, brake rod, 105, brake plate, 20, storage and transportation device, 201, caster, 2011, wheel frame, 2012, tire. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0022] As Figure 1 , Figure 2 andFigure 4 As shown in the drawings, the brake device 10 of the preferred embodiment of the present application is installed at the bottom of the storage and transportation device 20, and the storage and transportation device 20 is provided with at least two casters 201, each of which comprises a wheel frame 2011 and a tire 2012. The brake device 10 comprises a fixing ring 101, a transmission shaft 102, a foot pedal 103, two guide grooves, two brake levers 104 and two brake plates 105.

[0023] The fixing ring 101 is fixed at the bottom of the storage and transportation device 20, and the transmission shaft 102 is rotatably connected with the fixing ring 101. The transmission shaft 102 is provided with two radial flanges 1021 at two ends thereof, and the foot pedal 103 is fixedly connected with the middle part of the transmission shaft 102.

[0024] The two guide grooves are fixedly connected with the two casters 201 respectively, and the installation interval of the two guide grooves is equal to the wheel track of the two casters 201. The two guide grooves are arranged along the vertical direction.

[0025] The two brake levers 104 are slidably connected with the two guide grooves respectively. The two brake plates 105 are rotatably connected with the two wheel frames 2011 respectively, and one end of each brake plate 105 is located on the movement path of the brake lever. When the foot pedal 103 is stressed, the transmission shaft 102 is rotated, and the radial flanges 1021 are also rotated. The radial flanges 1021 press the brake levers 104 to move downward, and the brake levers 104 press one end of each brake plate 105 until the brake plate 105 is rotated to abut against the tire 2012.

[0026] It can be understood that the guide grooves are omitted in the drawings for the purpose of showing the linkage of the internal devices. The guide grooves are used to enable the brake levers 104 to slide up and down.

[0027] According to the scheme, when the foot pedal 103 is stepped on, the two brake levers 104 can be simultaneously driven to press the two brake plates respectively. The simultaneous action of the two brake plates enables the two casters 201 to be simultaneously clamped. In this way, the casters 201 on both sides can be simultaneously braked, and effective braking can be achieved even in the full load condition. Moreover, the braking effect of the two brake levers 104 enables the casters 201 to be difficult to slip after being braked.

[0028] At the same time, when the brake system is triggered, the two casters 201 can be simultaneously stopped because the two brake levers 104 simultaneously act on the two casters 201, so that the same braking force is applied to the two casters 201 at the same time. In this case, the casters 201 are difficult to deviate left and right during braking. Because the casters 201 on both sides are firmly braked at the same time, the imbalance phenomenon caused by the fact that one side is braked first and the other side is braked later does not occur.

[0029] During the process of climbing or descending, the center of gravity of the vehicle changes, and the requirement of the braking system is higher. The braking scheme that ensures the two casters 201 stop at the same time can effectively prevent the vehicle from sliding or deviating due to left-right imbalance during braking, thereby greatly improving the safety during climbing or descending.

[0030] In the above scheme, the guide groove provides a clear path for the up-down movement of the brake lever 104, ensuring that the brake lever 104 can move in a predetermined direction during braking, avoiding deviation or shaking, thereby ensuring the stability and reliability of the brake.

[0031] In an embodiment, the brake lever 104 can be made of high-strength materials such as alloy steel to improve its durability and resistance to deformation. In this way, even if the brake lever 104 is frequently used during long-term use, it can still maintain good performance and ensure that it can always firmly lock the caster 201.

[0032] A non-slip pad or coating is added to the part where the brake lever 104 contacts the caster 201. For example, a special rubber pad can be used, which not only increases friction and improves braking effect, but also reduces wear between the brake lever 104 and the caster 201.

[0033] In an embodiment of the present application, the brake device 10 further comprises an elastic member 106; the elastic member 106 is installed between the wheel frame 2011 and the brake plate 105, and is used to provide a restoring force for the brake plate 105 and the brake lever 104.

[0034] At the same time, the elastic member 106 provides a restoring force for the brake lever 104 after the brake is released. When the brake pedal is released, the elastic member 106 can quickly pull the brake lever 104 back to the initial position, so that the caster 201 returns to the free rotating state, making the brake device 10 simple and easy to use.

[0035] Specifically, the elastic member 106 can be an elastic rod, such as Figure 4 As shown, one end of the elastic rod is fixed to the wheel frame 2011, and the other end of the elastic rod is supported below the end of the brake plate 105.

[0036] In addition to the scheme of the elastic rod, the elastic member 106 can also be a torsion spring. The torsion spring can be arranged at the rotating connection between the brake plate 105 and the wheel frame 2011. One of the torsion arms of the torsion spring is in contact with the wheel frame 2011, and the other torsion arm is in contact with the brake plate 105, thereby providing a restoring force for the brake plate 105. When the brake plate 105 is restored, it can drive the brake lever 104 to restore together.

[0037] In another embodiment, the brake device 10 can also include a torsion spring, which is sleeved on the transmission shaft 102 and includes two torsion arms, one of which is in contact with the bottom of the storage and transportation device 20, and the other is in contact with the foot pedal 103, and the torsion spring is used to provide a restoring force for the foot pedal 103.

[0038] The presence of the torsion spring makes the restoration of the foot pedal 103 more rapid and reliable. It can avoid the situation that the foot pedal 103 cannot return to the initial position after the brake is released, thereby ensuring the normal operation of the brake system. At the same time, the torsion spring can also reduce the shaking and loosening of the foot pedal 103 during use, and improve the stability of the brake system.

[0039] It can be understood that the parameters of the torsion spring, such as spring coefficient and torsion arm length, need to be selected according to the specific requirements of the brake system, and the present application does not make specific limitations. A larger spring coefficient can provide a stronger restoring force, but it can also cause the operating force of the foot pedal 103 to be too large. The selection of the torsion arm length needs to consider the space limitation of the foot pedal 103 and the bottom of the storage and transportation device 20, as well as the stability of the torsion spring after installation.

[0040] As shown in Figure 3 In addition to being rod-shaped, the brake lever 104 can also be designed in other shapes, as its function is the same, so it can be collectively referred to as a brake lever. In addition to the structures mentioned in the present application, those skilled in the art can also add other transmission mechanisms to achieve further design purposes, and when further expansion schemes still conform to the schemes of the present application, they should fall within the protection scope of the present application.

[0041] In order to improve the braking effect, a groove can be provided on the caster to cooperate with the brake plate for braking.

[0042] Illustratively, the groove can be provided on the hub of the caster 201. By providing the groove on the hub of the caster 201, the brake lever 104 can achieve more precise cooperation with the groove when braking. When the brake lever 104 contacts the groove on the hub, since the hub is the core structural part of the caster 201, its stability and regularity of rotation enable the brake lever 104 to quickly and accurately snap into the groove, thereby producing a more explicit braking response.

[0043] This explicit braking response means that the brake system can function more quickly during braking operation, reducing the delay time of the brake and improving the efficiency and reliability of the brake.

[0044] If the slot is opened on the rubber part of the wheel that contacts the ground, when the caster 201 rolls on uneven ground, the slot is prone to irregular contact with the ground, causing increased bumping. By setting the groove on the hub, since the hub is usually located inside the caster 201, the contact with the ground is relatively less, so the bumping introduced by the slot can be avoided.

[0045] In another embodiment of the present application, the force receiving end of the foot pedal 103 is provided with an anti-skid rubber sleeve.

[0046] The anti-skid rubber sleeve on the force receiving end of the foot pedal 103 can significantly increase the friction between the user's foot and the foot pedal 103. When the user steps on the foot pedal 103 to operate the brake, the anti-skid rubber sleeve can effectively prevent the foot from slipping, ensuring the accuracy and stability of the brake operation.

[0047] Especially in some emergency situations, it is necessary to quickly and forcefully step on the foot pedal 103 to brake, and the presence of the anti-skid rubber sleeve can make the user more confident in applying force, improving the response speed of the brake.

[0048] The anti-skid rubber sleeve is usually made of soft rubber material and has certain elasticity and cushioning performance. When the user steps on the foot pedal 103, the anti-skid rubber sleeve can reduce the pressure on the foot, improving the comfort of operation.

[0049] In addition, the anti-skid rubber sleeve can also reduce the transmission of vibration from the foot pedal 103 to the foot, reducing the fatigue caused by long-term use of the foot pedal 103.

[0050] The anti-skid rubber sleeve can protect the foot pedal 103. In daily use, the foot pedal 103 is prone to damage such as wear, scratching and collision. The anti-skid rubber sleeve can provide an additional layer of protection for the foot pedal 103, prolonging the service life of the foot pedal 103.

[0051] At the same time, the anti-skid rubber sleeve can also prevent the surface of the foot pedal 103 from being contaminated and corroded, keeping the foot pedal 103 clean and beautiful.

[0052] In one embodiment, as shown in Figure 4 The middle part of the transmission shaft 102 can be recessed downward to increase the distance between the foot pedal 103 and the bottom of the storage and transportation equipment 20.

[0053] The recessed middle part does not affect the installation of the brake lever 104 part at both ends, and can provide more foot space in the longitudinal direction, reducing the probability of missing the foot pedal 103. At the same time, it makes it more comfortable to operate the foot pedal 103, reducing the possibility of collision between the foot and the bottom of the storage and transportation equipment 20.

[0054] In another embodiment, as shown in Figure 5As shown, the length L of the foot pedal 103 is greater than the distance H from the transmission shaft 102 to the side of the storage and transport device 20.

[0055] Due to the longer length of the foot pedal 103, the user can more easily reach the foot pedal 103 at different positions and angles, improving the convenience of operation.

[0056] As some users may be used to stepping on the foot pedal 103 with the toes, and some users may prefer to step on it with the entire sole. The longer foot pedal 103 can provide sufficient space for these different operating methods.

[0057] In an embodiment, the storage and transport device 20 is provided with a push handle, and the brake device 10 is installed on the side close to the push handle.

[0058] By installing the brake device 10 close to the push handle, the operator can conveniently operate the brake while pushing the storage and transport device 20. The push handle is usually the part that the operator directly contacts with the storage and transport device 20, and installing the brake device 10 nearby makes the brake operation more convenient.

[0059] When the operator pushes the storage and transport device 20, the hand naturally holds the push handle. If braking is needed, the foot can easily step on the brake device 10 close to the push handle, without the need to move the body or change the hand position, making the operation very convenient.

[0060] This convenience is particularly important in situations where frequent braking is required, which can improve work efficiency and reduce the feeling of fatigue in operation.

[0061] Since the brake device 10 is close to the push handle, the operator can perceive the need for braking in the first time and respond quickly. For example, in the case of an emergency or an obstacle in front, the brake can be quickly stepped down to ensure the safety of the storage and transport device 20.

[0062] In order to better achieve the convenience of operation and quick response, the design of the brake device 10 can be coordinated with the push handle. For example, a prompt mark or button for brake operation can be provided on the push handle, so that the operator can more intuitively understand the position and operation method of the brake device 10.

[0063] In summary, the embodiment of the present application provides a brake device 10, which realizes simultaneous braking of the left and right wheels 201 by the foot pedal 103 driving two brake levers 104, is effective and not slippery when fully loaded, and can avoid left and right deviation of braking, making uphill and downhill more safe.

[0064] Further, the adapter, guide slot, elastic member, torsional spring and other components can be provided, the concave groove is arranged on the wheel hub of the caster 201, the stress end of the foot pedal 103 is provided with the anti-skid rubber sleeve, the middle part of the transmission shaft 102 is recessed to increase the foot pedal space, the length of the foot pedal 103 is designed reasonably, and the foot pedal 103 is installed on the side close to the push handle, so that the operation is convenient, the response is fast, and the space utilization is reasonable. The contents of the many embodiments constitute the brake device 10 which is convenient to use.

[0065] The above are only the preferred embodiments of the present application. It should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A brake device (10) characterized by, The brake device (10) is installed at the bottom of the storage and transportation equipment (20), the storage and transportation equipment (20) is provided with at least two casters (201), and each of the two casters (201) comprises a wheel frame (2011) and a tire (2012); the brake device (10) comprises: A fixing ring (101) is fixed at the bottom of the storage and transportation equipment (20); A transmission shaft (102) is rotatably connected with the fixing ring (101), and two end portions of the transmission shaft (102) are respectively provided with two radial flanges (1021); A foot pedal (103) is fixedly connected at the middle portion of the transmission shaft (102); Two guide grooves are respectively fixedly connected with the two casters (201), the installation spacing of the two guide grooves is equal to the wheel track of the two casters (201), and the two guide grooves are arranged in the vertical direction; Two brake levers (104) are respectively slidably connected with the two guide grooves; Two brake plates (105) are rotatably connected with the two wheel frames (2011) respectively, and one end of the brake plate (105) is located on the movement path of the brake lever (104); Wherein, the foot pedal (103) is driven to rotate the transmission shaft (102) after being stressed, and the radial flange (1021) rotates and presses the brake lever (104) to move downward, so that the brake lever (104) presses one end of the brake plate (105) until the brake plate (105) rotates to abut against the tire (2012).

2. The brake device (10) according to claim 1, characterized in that The brake device (10) further comprises an elastic member (106); The elastic member (106) is installed between the wheel frame (2011) and the brake plate (105) and is used to provide a force for resetting the brake plate (105) and the brake lever (104).

3. The brake device (10) according to claim 1, characterized in that The brake device (10) further comprises a torsion spring, the torsion spring is sleeved on the transmission shaft (102), the torsion spring comprises two torsion arms, one of the two torsion arms abuts against the bottom of the storage and transportation equipment (20), and the other torsion arm abuts against the foot pedal (103), and the torsion spring is used to provide a force for resetting the foot pedal (103).

4. The brake device (10) according to claim 2, characterized in that The elastic member (106) is an elastic rod, one end of the elastic rod is fixed with the wheel frame (2011), and the other end of the elastic rod is supported below the end portion of the brake plate (105).

5. The brake device (10) according to claim 1, characterized in that The stressed end of the foot pedal (103) is provided with an antiskid rubber sleeve.

6. The brake device (10) according to claim 1, characterized in that The middle portion of the transmission shaft (102) is recessed downward, so as to increase the spacing between the foot pedal (103) and the bottom of the storage and transportation equipment (20).

7. The brake device (10) according to claim 1, characterized in that The length of the foot pedal (103) is greater than the distance from the transmission shaft (102) to the side edge of the storage and transportation equipment (20).

8. The brake device (10) according to claim 1, characterized in that A handle is arranged on the storage and transportation equipment (20), and the brake device (10) is installed on the side close to the handle.

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