Baby carriage brake testing device

Abstract

The utility model discloses a baby carriage brake testing device, which comprises a horizontally arranged testing platform, a wheel shaft is rotatably connected onto the testing platform, a follow-up testing wheel is arranged at one end of the wheel shaft, the testing wheel is arranged above the testing platform, a testing arm is rotatably connected onto the testing platform, the testing arm comprises a driven arm and a driving arm, and the driven arm and the driving arm are arranged on the testing platform. A push rod air cylinder with one end hinged to the driving arm and the other end hinged to the testing platform is arranged between the driving arm and the testing platform, a brake sample block detachably connected to the driven arm is arranged between the driven arm and the testing wheel, and a power mechanism giving initial speed to the wheel shaft is arranged at the bottom of the testing platform. The testing device has the advantages of being uniform in testing environment standard, high in testing result reference, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, and more specifically, to a baby carriage brake testing device. Background Art

[0002] The braking effect of brake parts made of suitable materials varies, and repeated tests are required to determine whether they have a good braking effect. The traditional testing method requires the brake parts to be made into actual products, and then installed on the existing baby stroller casters before testing. However, due to the uncontrollable test environment or the non-standard test environment, the test results are not comparable and the overall effect is not good. Based on this, the utility model proposes a baby stroller brake test device. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a baby carriage brake testing device, which has the characteristics of unified testing environment standards and strong reference value for test results.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a baby carriage brake testing device, including a horizontally arranged test platform, a wheel axle is rotatably connected to the test platform, one end of the wheel axle is provided with a follow-up test wheel, the test wheel is arranged above the test platform, a test arm is rotatably connected to the test platform, the test arm includes a driven arm and an active arm, a push rod cylinder is provided between the active arm and the test platform, one end of the active arm is hinged to the active arm and the other end is hinged to the test platform, a brake sample block detachably connected to the driven arm is provided between the driven arm and the test wheel, and a power mechanism for giving the wheel axle an initial velocity is provided at the bottom of the test platform.

[0005] The utility model is further configured as follows: the power mechanism includes a driven gear arranged at the other end of the wheel shaft, a driving gear is arranged on the left or right side of the driven gear, a driving plate is arranged between the driving gear and the driven gear and slides forward and backward relative to the test platform, a first rack meshing with the driving gear is arranged on one side of the driving plate, and a second rack meshing with the driven gear is arranged on the other side, the end of the second rack has a toothless portion, the first rack and the second rack both extend forward and backward, and the driving gear is transmission-connected to a motor that controls its rotation.

[0006] The utility model is further configured as follows: the test platform is provided with a linear guide rail extending forward and backward, a linear slider is slidably connected to the linear guide rail, and the driving plate is arranged on the linear slider.

[0007] The utility model is further configured as follows: the brake sample block is cylindrical, the driven arm is provided with a sample slot for the brake sample block to be inserted into and partially extend out of the slot, the side of the sample slot is provided with a locking screw threadedly connected to the driven arm, the end of the locking screw extends into the sample slot and abuts against the brake sample block.

[0008] The utility model is further configured as follows: the locking screw is a hand-tightening locking screw.

[0009] In summary, the utility model has the following beneficial effects: the baby carriage brake test device involved in the utility model provides an initial velocity to the wheel axle and the test wheel through a power mechanism, and then controls the brake sample block to stick to the rotating test wheel through a push rod cylinder, and friction is generated between the two, thereby slowing down the test wheel, and recording the time taken for the test wheel to stop rotating from braking to stopping, repeatedly testing brake samples of the same shape made of different raw materials, and comparing and testing which brake sample block has a better braking effect, the test environment standards are unified, the test results are highly referenceable, the overall functions are complete, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0013] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0014] Example 1

[0015] See also Figure 1 and Figure 2As shown, a baby carriage brake test device involved in this embodiment includes a horizontally arranged test platform 1, a wheel axle 2 is rotatably connected to the test platform 1, a test wheel 3 for following is provided at one end of the wheel axle 2, and the test wheel 3 is arranged above the test platform 1, a test arm 4 is rotatably connected to the test platform 1, the test arm 4 includes a driven arm 41 and an active arm 42, a push rod cylinder 5 is provided between the active arm 42 and the test platform 1, one end of which is hinged to the active arm and the other end is hinged to the test platform, a brake sample block 6 detachably connected to the driven arm is provided between the driven arm 42 and the test wheel 3, and a power mechanism for giving the wheel axle an initial velocity is provided at the bottom of the test platform 1.

[0016] Furthermore, the power mechanism includes a driven gear 7 arranged at the other end of the wheel shaft 2, a driving gear 8 is provided on the left or right side of the driven gear 7, a driving plate 9 is provided between the driving gear 8 and the driven gear 7 and slides forward and backward relative to the test platform 1, a first rack 91 meshing with the driving gear is provided on one side of the driving plate 9, and a second rack 92 meshing with the driven gear is provided on the other side, the end of the second rack 92 has a toothless portion 93, the first rack 91 and the second rack 92 both extend forward and backward, and the driving gear 8 is transmission-connected to a motor (not shown) for controlling its rotation.

[0017] Furthermore, the test platform 1 is provided with a linear guide rail 10 extending forward and backward, a linear slider (not shown) is slidably connected to the linear guide rail 10, and the drive plate 9 is arranged on the linear slider.

[0018] Furthermore, the brake sample block 6 is cylindrical, and the follower arm 41 is provided with a sample slot 43 for the brake sample block to be inserted into and partially extend out of the slot. The side of the sample slot 43 is provided with a locking screw 11 threadedly connected to the follower arm 41, and the end of the locking screw 11 extends into the sample slot 43 and presses against the brake sample block 6.

[0019] In this embodiment, brake sample block 1 is first made of material a, brake sample block 2 is made of material b, and brake sample block 3 is made of material c, and then the braking effect of each brake sample block 6 is tested one by one.

[0020] The test principle is as follows: first, insert the brake sample block 6 into the sample slot 43, tighten it with the locking screw 11, and then start the power mechanism, the motor operates, and drives the driving gear 8 to rotate, which is transmitted through the first rack 91, the second rack 92 and the driven gear 7, and the wheel shaft 2 rotates with the test wheel 3 until the driven gear 7 is located at the tooth-missing portion 93. After the test wheel 3 loses the rotational power, it rotates on its own. At the same time, the push rod cylinder 5 is started to extend it, driving the test arm 4 to swing relative to the test platform 1, until the driven arm 41 carries the brake sample block 6 to move toward the test wheel 3, until the brake sample block 6 is tightly attached to the wheel surface of the test wheel 3, and friction is generated between the two. The time from the start of braking to the stop of the test wheel 3 is recorded. After multiple tests, the wear amount of the brake sample block 6 is also recorded. Finally, all brake samples made of different materials are tested to determine which material has a better braking effect.

[0021] Example 2

[0022] See also Figure 1 and Figure 2 As shown, the present embodiment involves a baby carriage brake testing device, which is further configured on the basis of Embodiment 1, in which the locking screw 11 is a hand-tightened locking screw.

[0023] In this embodiment, by setting the locking screw 11 as a hand-tightening locking screw, it is convenient to turn it by hand without the aid of external tools, and the operation is convenient and quick.

[0024] The baby carriage brake test device involved in the utility model provides an initial velocity to the wheel axle and the test wheel through a power mechanism, and then controls the brake sample block to stick to the rotating test wheel through a push rod cylinder, so that friction is generated between the two, thereby slowing down the test wheel, and recording the time taken by the test wheel from braking to stopping rotation. Brake samples of the same shape made of different materials are tested repeatedly, and which brake sample block has a better braking effect is compared and tested. The test environment standard is unified, the test result has strong reference value, the overall function is perfect, and the practicability is strong.

[0025] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0026] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A baby carriage brake test device, comprising a horizontally arranged test platform, characterized in that: A wheel axle is rotatably connected to the test platform, one end of the wheel axle is provided with a follower test wheel, the test wheel is arranged above the test platform, a test arm is rotatably connected to the test platform, the test arm includes a driven arm and an active arm, a push rod cylinder is provided between the active arm and the test platform, one end of the active arm is hinged to the active arm and the other end is hinged to the test platform, a brake sample block detachably connected to the driven arm is provided between the driven arm and the test wheel, and a power mechanism for giving the wheel axle an initial velocity is provided at the bottom of the test platform.

2. The baby carriage brake testing device according to claim 1, characterized in that: The power mechanism includes a driven gear arranged at the other end of the wheel shaft, a driving gear is arranged on the left or right side of the driven gear, a driving plate is arranged between the driving gear and the driven gear and slides forward and backward relative to the test platform, a first rack meshing with the driving gear is arranged on one side of the driving plate, and a second rack meshing with the driven gear is arranged on the other side, the end of the second rack has a toothless portion, the first rack and the second rack both extend forward and backward, and the driving gear is transmission-connected to a motor for controlling its rotation.

3. The baby carriage brake testing device according to claim 2, characterized in that: The test platform is provided with a linear guide rail extending forward and backward, a linear slider is slidably connected to the linear guide rail, and the drive plate is arranged on the linear slider.

4. The baby carriage brake testing device according to any one of claims 1 to 3, characterized in that: The brake sample block is cylindrical, and the driven arm is provided with a sample slot for the brake sample block to be inserted into and partially extend out of the slot. The side of the sample slot is provided with a locking screw threadedly connected to the driven arm, and the end of the locking screw extends into the sample slot and abuts against the brake sample block.

5. The baby carriage brake testing device according to claim 4, characterized in that: The locking screw is a hand-tightening locking screw.

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