A brake lever

Abstract

The present invention relates to the technical field of luggage case levers, and discloses a brake lever comprising a lever handle, a lever aluminum tube, a brake housing, a brake wheel, and a transverse groove. The lower portion of the lever handle is slidably inserted into the interior of the lever aluminum tube, a lever control member is installed in the lower interior portion of the lever handle, and a control rod is connected to the top of the lever control member. A wire take-up box is provided on one side of the lever handle. A rotatable take-up coil is installed in the lever handle at the wire take-up box via a spring. A steel wire is wound around the outer coil of the take-up coil, and a gear is fixed to the front end surface of the take-up coil for transmission. The present invention arranges a brake and unlocking device on the lever handle. When the brake button is pressed, the take-up coil is driven to rotate, retracting the steel wire to the outer coil, and driving a brake slide in the brake housing to close the brake clutch and pull the brake structure in the brake wheel through the brake cable, thereby locking the brake wheel. This eliminates the need to bend over to unlock the brake, reduces manufacturing costs, and is convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage case pull rods, in particular to a brake pull rod. Background Art

[0002] A suitcase, also known as a travel case or trolley case, is a box that is carried when traveling and is used to store items. It is a type of luggage. Suitcases are usually used to store clothes, personal care products and souvenirs needed for travel. Early suitcases were made of wood or other heavy materials. With the popularity of air travel, the materials of suitcases tend to be lighter hard plastic or cloth. In order to facilitate the carrying and movement of the suitcase, rollers are usually installed at the bottom and a retractable handle is installed on the back.

[0003] Traditional pull rods do not have brakes. When used in places such as shopping malls, stations, passenger vehicles, airports, hotels, etc., if you want to stop briefly, the casters are in a free and movable state, and there is an uncontrollable risk of wandering and collision.

[0004] Some travel bags and luggage carts with brakes on the market have brakes installed on the casters or the box body, which is expensive to manufacture and requires bending over to brake and unlock, which is very inconvenient. Therefore, we propose a brake lever. Summary of the Invention

[0005] The purpose of the present invention is to provide a brake lever, which arranges the braking and unlocking devices on the lever handle. When the brake button is pressed, the take-up coil can be driven to rotate and the steel wire pull cable can be retracted to the outer ring of the take-up coil, and the brake slide in the brake box can be driven to close the brake clutch and pull the brake structure in the brake wheel through the brake cable to lock the brake wheel. There is no need to bend down to unlock and the manufacturing cost is reduced. It is easy to use and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a brake lever, comprising a lever handle, a lever aluminum tube, a brake box, a brake wheel, and a transverse groove; the lower portion of the lever handle is slidably inserted into the interior of the lever aluminum tube, a lever control member is installed in the lower interior of the lever handle, and a control rod is connected to the top of the lever control member;

[0007] A take-up box is provided on one side of the inner portion of the pull rod handle. A rotatable take-up coil is installed in the pull rod handle at the take-up box through a spring. A steel wire is wound around the outer ring of the take-up coil. The steel wire passes through the pull rod control part and passes through the pull rod handle and the pull rod aluminum tube into the brake box. A gear is fixed on the front end surface of the take-up coil for transmission.

[0008] A pull rod button that can slide up and down is embedded in the middle of the surface of the pull rod handle, and a brake button that can slide up and down is also embedded in the pull rod handle on the side thereof. Down-pressing rods are fixed horizontally on both sides of the pull rod button, and the bottom of the down-pressing rod abuts against the top of the control rod. A rack is fixed vertically on the side of the bottom of the brake button, and one side surface of the rack is provided with tooth patterns;

[0009] A push rod is vertically fixed to the bottom of the lower pressure rod on the side of the winding coil, and a horizontal groove is horizontally provided in the pull rod handle below the push rod, and a slider is slidably provided in the horizontal groove, and a block is fixed to the end of the slider close to the gear side and extends to the outside of the slide groove, and a push groove is provided on the surface of the slider just below the push rod, and a through hole connected to the outside is provided on the side of the horizontal groove above the push groove, and a spring sheet is connected to the lower surface of the other side of the rack, and the spring sheet is in contact with the side surface of the horizontal groove;

[0010] A slidable brake slide is fixed in the brake box, brake clutches are connected to the lower sides of the brake slide, the brake slide is connected to a steel wire rope, brake cables are connected between the lower sides of the brake box and the two brake wheels, and a brake cable is passed through the brake cable and connected between the brake clutch and the brake structure of the brake wheel.

[0011] By adopting the above technical solution, the overall structure of the pull rod is installed on the back of the suitcase. By pulling the pull rod handle in the pull rod aluminum tube, the overall length can be extended and retracted, and it can be locked at an appropriate length. During the process, the steel wire is wound on the outer ring of the take-up coil and automatically retracted and released, which will not drive the brake slide to move, and ensure the normal rotation of the brake wheel. When the brake button is pressed, the take-up coil will be driven to rotate and the steel wire will be retracted to drive the brake slide to slide and pull the brake wire to lock the brake wheel, thereby achieving the purpose of locking the suitcase.

[0012] As a preferred embodiment of the present invention, a spring is placed in the transverse groove on the side of the slider, and two ends of the spring respectively contact the inner surface of the transverse groove and the side surface of the slider.

[0013] By adopting the above technical solution, the spring contacts the side of the slider and has a reset and actuating effect on it.

[0014] As a preferred embodiment of the present invention, the tooth patterns on the surface of the rack are arranged on a side close to the gear, and the tooth patterns are evenly distributed on the surface of the rack.

[0015] By adopting the above technical solution, the rack can be firmly engaged with the gear by utilizing the tooth pattern when the brake button is lowered.

[0016] As a preferred embodiment of the present invention, the steel wire rope is wrapped around the outer ring of the take-up coil in a clockwise direction, so that the steel wire rope can be retracted when the take-up coil is driven to rotate counterclockwise.

[0017] By adopting the above technical solution, when the rack is lowered and acts on the gear, it will drive the winding coil to rotate counterclockwise, thereby winding the steel wire.

[0018] As a preferred embodiment of the present invention, the bottom side of the push rod and the interior of the push groove are both configured as inclined surfaces, so that when the push groove contacts the push rod, the slider is pushed to the left.

[0019] By adopting the above technical solution, the oblique side of the resisting rod is brought into contact with the oblique plate of the resisting groove, thereby generating a resisting force to the left side on the slider.

[0020] As a preferred embodiment of the present invention, a pull rod fixing plate is transversely fixed to the top of the pull rod aluminum tube, and the pull rod fixing plate is located between the connection between the pull rod aluminum tube and the pull rod handle.

[0021] By adopting the above technical solution, the top of the tie rod aluminum tube is fixed by the tie rod fixing plate.

[0022] As a preferred embodiment of the present invention, a tie rod bottom plate is transversely fixed to the bottom of the tie rod aluminum tube, and the brake box is installed at the bottom of the tie rod bottom plate.

[0023] By adopting the above technical solution, the bottom of the tie rod aluminum tube is fixed through the tie rod bottom plate.

[0024] As a preferred embodiment of the present invention, the push-down rod is located at the front end of the rack and gear in the pull rod handle, and the clamping block and the spring sheet are on the same horizontal plane.

[0025] By adopting the above technical solution, the movement of the pressing rod will not affect the rotation of the gear.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The brake lever of the present invention arranges the brake and unlocking devices on the lever handle. When the brake button is pressed, the take-up coil can be driven to rotate and the steel wire pull cable can be retracted to the outer ring of the take-up coil. The brake slide in the brake box is driven to close the brake clutch and pull the brake structure in the brake wheel through the brake cable to lock the brake wheel. There is no need to bend down to unlock, which reduces manufacturing costs and is easy to use.

[0028] 2. The brake lever of the present invention is provided with a steel wire rope loop in the brake box, which is rotatably installed inside through a spring. When adjusting the length of the lever, the length of the steel wire rope can be freely adjusted as the lever is telescopically adjusted, so that the lever can be in a stationary state at any height, and the brake button has a braking function.

[0029] 3. The brake lever of the present invention releases the lock on the take-up coil by pressing the lever button, allowing the take-up coil to rotate freely, and the brake clutch is opened, so that the brake wheel is quickly unlocked and can rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the brake lever of the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of the brake rod aluminum tube of the present invention;

[0033] Figure 3 This is a detailed structural diagram of the right side of the brake lever of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the brake box of the brake lever of the present invention.

[0035] In the figure: 1. Pull rod handle; 11. Winding box; 12. Brake button; 121. Rack; 122. Tooth pattern; 123. Spring sheet; 13. Pull rod button; 131. Press rod; 132. Push rod; 2. Pull rod aluminum tube; 21. Pull rod base plate; 22. Pull rod fixing plate; 23. Pull rod control member; 24. Control lever; 3. Brake box; 31. Brake slide plate; 32. Brake clutch; 4. Brake wheel; 5. Horizontal groove; 51. Slider; 511. Push groove; 512. Block; 52. Spring; 6. Winding coil; 61. Gear; 62. Steel wire; 7. Brake cable; 71. Brake cable. DETAILED DESCRIPTION

[0036] See also Figure 1-4The present invention provides a technical solution: a brake lever, comprising a lever handle 1, a lever aluminum tube 2, a brake box 3, a brake wheel 4 and a transverse groove 5; a take-up box 11 is provided on the right side of the interior of the lever handle 1, a rotatable take-up coil 6 is installed inside the lever handle 1 at the take-up box 3, a take-up spring is provided in the take-up coil 6, and the take-up spring is in a normally open state. The lower part of the lever handle 1 can be slidably inserted into the lever aluminum tube 2. In order to realize the installation and fixation of the structure, a lever fixing plate 22 is fixed laterally on the top of the lever aluminum tube 2, and the lever fixing plate 22 is located between the connection between the lever aluminum tube 2 and the lever handle 1, and the bottom of the lever aluminum tube 2 is transversely fixed. A pull rod base plate 21 is fixed, and the pull rod fixing plate 22 and the pull rod base plate 21 are fixed on the upper and lower surfaces of the back of the suitcase, so that the entire pull rod can be installed and fixed, and the brake box 3 is installed on the lower side of the pull rod base plate 21. The entrance at the top of the brake box 3 is connected to the inside of the pull rod aluminum tube 2. The winding coil 6 is wound with a steel wire rope 62 in a clockwise direction, so that the steel wire rope 62 passes through the pull rod handle 1 and the pull rod aluminum tube 2 and then extends into the brake box 3. When the pull rod is extended and retracted, the winding coil 6 can rotate freely, and under the action of the spring, the steel wire rope 62 is wound on its outer ring, so that the steel wire rope 62 can be extended and retracted as the pull rod is pulled out.

[0037] A pull rod control part 23 is installed at the lower inner part of both sides of the pull rod handle 1. The steel wire 62 can slide through the pull rod control part 23. The pull rod control part 23 can lock the pull rod handle 1 and the pull rod aluminum tube 2, so that the pull rod handle 1 can be locked and will not be pulled out or retracted. A control rod 24 is connected to the top of the pull rod control part 23. When the control rod 24 is pressed down, the pull rod control part 23 can be unlocked, so that the bottom of the pull rod handle 1 can slide upward or downward in the pull rod aluminum tube 2. When the overall length of the pull rod is changed and the control rod 24 is no longer pushed, the pull rod control part 23 will reset and lock the pull rod handle 1 and the pull rod aluminum tube 2 again. A pull rod button 13 that can slide up and down is embedded in the middle position of the surface of the pull rod handle 1. When pressed, it will press down the lower pressing rods 131 on both sides, and the lower pressing rods 131 will abut against the top of the control rod 24, thereby pressing down the pull rod control part 23 to unlock it. When the pull rod control part 23 is reset, it will also push the pull rod button 13 to rise and reset.

[0038] A brake button 12 is embedded on the top of the pull rod handle 1 above the take-up coil 6 and can slide up and down. A rack 121 is fixed vertically on the lower side of the rack 121. The right side surface of the rack 121 is evenly provided with teeth 122. The front end surface of the take-up coil 6 is fixed with a gear 61 for transmission. The downward pressure rod 131 is located at the front end of the rack 121 and the gear 61 in the pull rod handle 1. When the brake button 12 is pressed down, the rack 121 can be driven to be pressed down. The rack 121 of the brake button 12 is combined with the gear 61 of the take-up coil 6 to fix the take-up coil 6. When the brake button 12 is continued to be pushed, the take-up coil 6 can be rotated to take up the line, and then the steel wire pull line 62 can be pulled upward.

[0039] A slidable brake skateboard 31 is fixed in the brake box 3, and the steel wire rope 62 is extended into the brake box 3 and connected to the brake skateboard 31, and brake clutches 32 are connected to the bottom of both sides of the brake skateboard 31. The brake box 3 is connected to the two brake wheels 4 through the brake wire 7, and the brake wires 71 are connected to the bottom of the brake clutches 32 on both sides. The brake wire 71 is passed through the brake wire 7 and connected to the brake of the brake wheel 4. When the gear 61 is driven to rotate and the steel wire rope 62 is wound, the steel wire rope 62 becomes shorter and is pulled upward, pulling the brake skateboard 31. The brake clutch 32 is in a closed state, which will drive the brake wire 71 to move, thereby locking the brake wheel 4.

[0040] When the brake button 12 is pressed, the spring sheet 123 is also lowered and pushed, pushing the block 512 and the slider 51 to the left and compressing the spring 52. Then, the spring 52 presses the slider 51 and the block 512 at its end to the right, so that it can be stuck under the block 512 and lock the position of the rack 121, locking the coil 6, thereby realizing the continuous upward locking of the brake slide 31, keeping the brake wheel 4 continuously When the brake wheel 4 is unlocked, the brake button 12 is raised to a height under the reset action of the spring sheet 123, and the rack 121 and the gear 61 are no longer engaged, thereby releasing the lock of the take-up coil 6, and the take-up coil 6 is in a free rotation state. The take-up coil 6 can freely retract and release the steel wire rope 62 again, the brake slide 31 rebounds, the brake clutch 32 is in the open state, and the brake lock of the brake wheel 4 is released.

[0041] When in use, the drawbar fixing plate 22 and the drawbar bottom plate 21 are fixed to the upper and lower surfaces of the rear end of the suitcase to realize the installation and fixation of the device, and the brake wheels 4 are installed on both sides of the bottom of the suitcase. When the drawbar button 13 is pressed, the control rod 24 can be pressed down by the downward pressing rods 131 on both sides, and the drawbar control part 23 can be controlled by the control rod 24 to release the lock between the drawbar handle 1 and the drawbar aluminum tube 2, so that the bottom of the drawbar handle 1 can be raised or lowered in the drawbar aluminum tube 2 to realize the length control of the drawbar handle 1 and the drawbar aluminum tube 2. When the drawbar button 13 is released, the drawbar control part 23 is released. The component 23 will push the control rod 24 upward, and make the control rod 24 push the pressing rod 131 and the lever button 13 upward to reset it. During this process, the brake button 12 is not pressed, and there is no contact between the tooth pattern 122 of the rack 121 and the gear 61. The take-up coil 6 is in a free rotation state. Since the take-up coil 6 is installed in the take-up box 11 through the spring, when the lever handle 1 is lowered, the take-up coil 6 is driven to rotate under the action of the spring and the steel wire 62 is wound to the outer ring of the take-up coil 6 without pulling the brake slide 31. On the contrary, when the lever handle 1 is raised, the take-up coil 6 can also rotate freely to wind the steel wire 62 When the brake wheel 4 needs to be locked, the brake button 12 can be directly pressed down to drive the rack 121 to descend in height, so that the tooth pattern 122 on the side of the rack 121 engages with the gear 61, and then the brake button 12 is continued to be pressed down to make the rack 121 continue to descend in height and drive the winding coil 6 to rotate through the gear 61, so that the wire rope 62 is wound to the outer ring of the winding coil 6, and then the brake skateboard 31 can be pulled upward to make the brake clutch 32 in a closed state and move upward. When the brake cable 71 in the brake cable 7 is pulled, the brake structure in the brake wheel 4 locks the brake wheel 4, thereby locking the position of the luggage box. When the brake button 12 is pressed and the rack 121 is lowered, the spring piece 123 is pressed down, pushing the clamping block 512 and the slider 51 to the left and compressing the spring 52 at the same time, finally causing the spring piece 123 to be moved and stuck under the clamping block 512, thereby locking the brake button 12 and the rack 121 to the downward pressure, thereby locking the gear 61 and the take-up coil 6, so that the brake cable 71 is always in a pulled and tightened state, maintaining the brake state of the brake wheel 4;When the brake wheel 4 needs to be released from the brake lock, the pull rod button 13 can be pressed, and the push rod 132 can be lowered by the push rod 131. When the push rod 132 extends into the sliding groove 511, it drives the slider 51 to the left and compresses the spring 52. At the same time, it drives the card block 512 to the left so that it is no longer stuck on the spring sheet 123, thereby releasing the lock of the brake button 12 and the rack 121. The spring sheet 123 contacts the side surface of the transverse groove 5, generating a reset effect. This force pushes the rack 121 and brake button 12 upward, causing the teeth 122 on the rack 121 to no longer mesh with the gear 61, allowing the take-up coil 6 to rotate freely again. This causes the brake slide 31 to rebound, and the brake clutch 32 to engage, releasing the brake wheel 4. Simultaneously, the push rod 131 and the pull rod button 13 return upward under the action of the control rod 24, driving the push rod 132 back to its original position. This causes the spring 52 to push the slider 51 and the block 512 rightward again, restoring the position for the next use.

Claims

1. A brake lever, characterized in that: The invention comprises a pull rod handle (1), a pull rod aluminum tube (2), a brake box (3), a brake wheel (4) and a transverse groove (5); the lower part of the pull rod handle (1) is slidably inserted into the interior of the pull rod aluminum tube (2); a pull rod control member (23) is installed in the lower interior of the pull rod handle (1), and the top of the pull rod control member (23) is connected to a control rod (24); A wire take-up box (11) is provided on one side of the inner portion of the pull rod handle (1), a rotatable wire take-up coil (6) is installed in the pull rod handle (1) at the wire take-up box (11) through a spring, a steel wire pull line (62) is wound around the outer ring of the wire take-up coil (6), and the steel wire pull line (62) passes through the pull rod control part (23) and passes through the pull rod handle (1) and the pull rod aluminum tube (2) into the brake box (3), and a gear (61) is fixed on the front end surface of the wire take-up coil (6); A pull rod button (13) that can slide up and down is embedded in the middle position of the surface of the pull rod handle (1), and a brake button (12) that can slide up and down is also embedded in the pull rod handle (1) on the side thereof, and a downward pressing rod (131) is fixed laterally on both sides of the pull rod button (13), and the bottom of the downward pressing rod (131) contacts the top of the control rod (24), and a rack (121) is fixed vertically on the side of the bottom of the brake button (12), and a tooth pattern (122) is provided on one side surface of the rack (121); A push rod (132) is vertically fixed to the bottom of the lower pressure rod (131) on the side of the winding coil (6), a horizontal groove (5) is horizontally arranged in the pull rod handle (1) below the push rod (132), a slider (51) is slidably arranged in the horizontal groove (5), a clamping block (512) is fixed to the end of the slider (51) close to the gear (61) and extends to the outside of the slide groove, a push groove (511) is arranged on the surface of the slider (51) directly below the push rod (132), a through hole connected to the outside is arranged on the side of the horizontal groove (5) above the push groove (511), and a spring sheet (123) is connected to the lower surface of the other side of the rack (121), and the spring sheet (123) contacts the side surface of the horizontal groove (5); A slidable brake slide (31) is fixed in the brake box (3), and brake clutches (32) are connected to the lower sides of the brake slide (31). The brake slide (31) is connected to a steel wire (62). Brake lines (7) are connected between the lower sides of the brake box (3) and the two brake wheels (4). A brake line (71) connected between the brake clutch (32) and the brake structure of the brake wheel (4) is inserted into the brake line (7); a spring (52) is placed in the transverse groove (5) on the side of the slider (51), and the two ends of the spring (52) are respectively in contact with the transverse groove (5). surface and the side surface of the slider (51); the tooth pattern (122) on the surface of the rack (121) is arranged on a side close to the gear (61), and the tooth pattern (122) is evenly distributed on the surface of the rack (121); the steel wire pull line (62) is clockwise wrapped around the outer ring of the take-up coil (6), so that the steel wire pull line (62) can be retracted when the take-up coil (6) is driven to rotate counterclockwise; the bottom side of the push rod (132) and the inside of the push groove (511) are both arranged as inclined surfaces, so that when the push groove (511) contacts the push rod (132), it will push the slider (51) to the left.

2. The brake lever according to claim 1, characterized in that: A pull rod fixing plate (22) is transversely fixed to the top of the pull rod aluminum tube (2), and the pull rod fixing plate (22) is located between the connection point of the pull rod aluminum tube (2) and the pull rod handle (1).

3. The brake lever according to claim 1, characterized in that: A pull rod bottom plate (21) is transversely fixed to the bottom of the pull rod aluminum tube (2), and the brake box (3) is installed on the bottom of the pull rod bottom plate (21).

4. The brake lever according to claim 1, characterized in that: The pressing rod (131) is located at the front end of the rack (121) and the gear (61) in the pull rod handle (1), and the clamping block (512) and the spring sheet (123) are on the same horizontal plane.

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