Hand brake device of electric forklift

Abstract

The utility model discloses an electric forklift hand brake device which comprises a seat body, a telescopic groove is vertically formed in the middle of the interior of the seat body, a jacking device extending to the upper end of the seat body is arranged on the inner side of the telescopic groove in a sliding fit mode, and a telescopic motor capable of pushing the jacking device to move up and down is arranged on the lower portion of the inner side of the telescopic groove. The hand brake stay wire is pushed to move up and down through the jacking device, the hand brake stay wire is directionally guided through the guide fixed pulleys on the two sides, and when braking needs to be conducted, a worker can accurately control the telescopic stroke, the start-stop state and the like of the telescopic motor according to display of the control system and based on the operation state of the forklift. If the jacking device is pushed by the telescopic motor to move upwards, the hand brake stay wire is directionally guided by the guide fixed pulley, so that the hand brake stay wire is tensioned and forms brake, otherwise, the brake is released, and compared with the prior art, the hand brake device has more direct and stable transmission efficiency and does not need to be frequently maintained in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift accessories, in particular to a handbrake device for an electric forklift. Background Art

[0002] The majority of handbrake structures currently configured on forklifts are manual mechanical cable brakes (small electric vehicles also have electromagnetic brakes). For structures using manual mechanical cable brakes, a force of 20KGF-30KGF is required for manual operation, which is extremely laborious. In addition, most operations are performed with the left hand. The inconvenience and laborious operation result in the manual mechanical cable brake structure of the traditional brake configuration often failing to stop the vehicle, posing a huge safety hazard. The patent document with announcement number CN219620798U discloses an electric handbrake device for forklifts, which uses a motor, a reduction gear set, a trapezoidal screw, a balancer, etc. to pull the handbrake cable to reach 300KGF. It can achieve one-click tightening of the handbrake, solving the problems of the traditional forklift handbrake being laborious and inconvenient to operate with the left hand.

[0003] The above-mentioned device and technical solution still have some shortcomings in practical application. For example, the use of multiple gear reduction transmissions and the simultaneous use of screw rotation to achieve lifting motion lead to a certain degree of hysteresis in controlling transmission efficiency, requiring high precision components and an overly complex structure. Furthermore, this screw transmission is prone to premature wear during frequent use, requiring frequent maintenance and increasing operating costs. Furthermore, the device requires additional flexible connectors and hangers at the middle section of the handbrake cable, further increasing assembly complexity. Based on these issues, a handbrake device for an electric forklift is now provided. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide an electric forklift handbrake device to solve the problems of the electric forklift handbrake device in the prior art proposed in the above background technology, such as certain transmission hysteresis, complex structure, inconvenient maintenance and high cost of use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a handbrake device for an electric forklift, comprising a base, a telescopic slot vertically provided at the center of the base, a jack extending to the upper end of the base slidably matched inside the telescopic slot, a telescopic motor for driving the jack up and down is provided at the lower inner portion of the telescopic slot, and guide fixed pulleys are rotatably mounted on both sides of the upper end of the base;

[0007] Among them, the handbrake cable is pushed up and down by the jacking device and the handbrake cable is directional guided by the guide fixed pulleys on both sides.

[0008] As a preferred solution of the electric forklift handbrake device described in the utility model, the lifter is further provided with ball-bearing slides on both sides along its height direction, and the telescopic slot is provided with positioning slides corresponding to the ball-bearing slides on both sides.

[0009] As a preferred solution of the electric forklift handbrake device described in the utility model, the top of the lifter is provided with an arc-shaped groove, and both sides of the arc-shaped groove are provided with limiting ribs.

[0010] As a preferred solution of the electric forklift handbrake device described in the utility model, the upper ends of the seat body are further provided with mounting grooves for installing guide fixed pulleys, and the two sides of the seat body are further provided with guide grooves passing through the mounting grooves along the height direction thereof.

[0011] As a preferred solution of the electric forklift handbrake device described in the utility model, the bottom of the base body is matched with a bottom cover, both ends of the bottom cover have avoidance grooves corresponding to the guide grooves, and the bottom cover is also provided with multiple mounting holes.

[0012] As a preferred solution of the electric forklift handbrake device described in the utility model, the electric forklift handbrake device further includes a microcontroller connected to at least the telescopic motor signal.

[0013] Compared with the existing technology, the beneficial effect of the present invention is that when braking is required, the staff of this electric forklift handbrake device will accurately control the telescopic stroke and start and stop status of the telescopic motor according to the display of the control system and based on the operating status of the forklift. For example, the telescopic motor is used to push the lifter upward, and the guide fixed pulley is used to guide the handbrake cable in a direction so that the handbrake cable is tightened and braked, and vice versa, the brake is released. Compared with the existing technology, it has more direct and stable transmission efficiency, simple structure and assembly, and does not require frequent maintenance during use, and its practicality is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model as a whole;

[0016] Figure 3 This is a schematic diagram of the upper structure of the device of the utility model;

[0017] Figure 4 This is a schematic diagram of the bottom cover structure of the utility model.

[0018] In the figure: 100, base; 110, telescopic slot; 111, positioning slide; 120, mounting slot; 130, guide slot; 200, lifter; 210, arc slot; 220, limit rib; 230, ball-bearing slide; 300, telescopic motor; 400, guide fixed pulley; 500, bottom cover; 510, avoidance slot; 520, mounting hole. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0022] Figure 1-Figure 4 The following is a schematic diagram of the entire structure of an electric forklift handbrake device of the present invention. Figure 1-Figure 4 In this embodiment, a handbrake device for an electric forklift includes a base body 100, a telescopic slot 110 is vertically arranged in the center of the base body 100, a jack 200 extending to the upper end of the base body 100 is slidably matched inside the telescopic slot 110, a telescopic motor 300 is arranged at the lower inner part of the telescopic slot 110, which can push the jack 200 to move up and down, and guide fixed pulleys 400 are rotatably installed on both sides of the upper end of the base body 100; wherein, the handbrake cable is pushed up and down by the jack 200 and the guide fixed pulleys 400 on both sides are used to guide the handbrake cable in a direction.

[0023] The lifter 200 also features ball-bearing slides 230 on either side of its height, and positioning grooves 111 on either side of the expansion slot 110 correspond to the ball-bearing slides 230. The coordination of the positioning grooves 111 and the ball-bearing slides 230 ensures a more stable and linear vertical movement of the lifter 200, facilitating precise control of the handbrake cable. The lifter 200 also features an arcuate groove 210 at its top, flanked by retaining ribs 220. The arcuate groove 210 provides a transitional contact with the handbrake cable, preventing pressure damage caused by protruding edges. The retaining ribs 220 and the guide fixed pulley 400 also prevent the handbrake cable from slipping during tensioning and releasing. Mounting grooves 120 for mounting the guide fixed pulley 400 are also located on either side of the upper end of the base 100. Guide grooves 130 extending through the mounting grooves 120 are also located on either side of the base 100 along its height. The guide grooves 130 provided allow the handbrake cable, after being guided by the guide fixed pulleys 400, to be semi-hidden on both sides of the base 100. In other embodiments, a side cover may be provided at the guide grooves 130 on both sides to completely conceal and protect the handbrake cable, but this embodiment is not limited thereto. Specifically, in this embodiment, when braking is required, the operator will precisely control the telescopic stroke and start / stop status of the telescopic motor 300 according to the display of the control system and based on the operating status of the forklift. For example, the telescopic motor 300 pushes the jack 200 upward, and the guide fixed pulleys 400 are used to provide directional guidance to the handbrake cable, so that the handbrake cable is tightened and braked, and vice versa, the brake is released. Compared with the existing technology, it has a more direct and stable transmission efficiency, a simple structure and assembly, and does not require frequent maintenance during use, thus further improving its practicality.

[0024] Furthermore, the bottom of the base 100 is matched with a bottom cover 500. The bottom cover 500 has avoidance grooves 510 at both ends corresponding to the guide grooves 130. The bottom cover 500 also has multiple mounting holes 520. It is understood that the telescopic motor 300 is mounted on the bottom cover 500. The mounting holes 520 are preferably threaded holes, and the bottom of the base 100 has corresponding threaded holes. The bottom cover 500 and the base 100 are fixed together by bolts, making disassembly and maintenance convenient.

[0025] Furthermore, the electric forklift handbrake device also includes a microcontroller connected to at least one telescopic motor 300. It is understood that the device can utilize the microcontroller to control external operating buttons and the telescopic motor 300 within the device. The microcontroller can precisely control the telescopic motor 300's telescopic travel, start / stop status, and other aspects based on the forklift's operating status.

[0026] In summary, in an electric forklift handbrake device according to the present embodiment, when braking is required, the staff will accurately control the telescopic stroke and start / stop status of the telescopic motor 300 according to the display of the control system and based on the operating status of the forklift. For example, the telescopic motor 300 is used to push the lifter 200 upward, and the guide fixed pulley 400 is used to guide the handbrake cable in a direction so that the handbrake cable is tightened and braked, and vice versa, the brake is released. Compared with the existing technology, it has a more direct and stable transmission efficiency, does not require frequent maintenance during use, and its practicality is further improved.

[0027] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An electric forklift handbrake device, characterized in that: The invention comprises a base (100), a telescopic slot (110) is vertically arranged at the center of the base (100), a jack (200) extending to the upper end of the base (100) is slidably matched inside the telescopic slot (110), a telescopic motor (300) is arranged at the lower part of the inner side of the telescopic slot (110) for pushing the jack (200) to move up and down, and guide fixed pulleys (400) are rotatably installed on both sides of the upper end of the base (100); The handbrake cable is pushed up and down by the jack (200) and the guide fixed pulleys (400) on both sides are used to guide the handbrake cable in a directional manner.

2. The electric forklift handbrake device according to claim 1, characterized in that: The lifter (200) is also provided with ball-type slide bars (230) on both sides along its height direction, and the telescopic slot (110) is provided with positioning slide bars (111) corresponding to the ball-type slide bars (230) on both sides.

3. The electric forklift handbrake device according to claim 1, characterized in that: The top of the lifter (200) is provided with an arc-shaped groove (210), and both sides of the arc-shaped groove (210) are provided with limiting ribs (220).

4. The electric forklift handbrake device according to claim 1, characterized in that: The upper ends of the seat body (100) are provided with mounting grooves (120) for mounting the guide fixed pulley (400) on both sides, and the seat body (100) is provided with guide grooves (130) penetrating the mounting grooves (120) on both sides along its height direction.

5. The electric forklift handbrake device according to claim 1, characterized in that: The bottom of the seat body (100) is matched with a bottom cover (500), and both ends of the bottom cover (500) are provided with avoidance grooves (510) corresponding to the guide grooves (130), and the bottom cover (500) is also provided with a plurality of mounting holes (520).

6. The electric forklift handbrake device according to claim 1, characterized in that: The electric forklift handbrake device also includes a microcontroller connected to at least the telescopic motor (300) signal.

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