Auxiliary brake device

Abstract

The utility model relates to the related technical field of forklifts, in particular to an auxiliary brake device which comprises a fixing plate and a plurality of first connecting plates, the fixing plate is arranged below the forklift and is a certain distance away from the ground, the upper portion of the fixing plate is fixedly connected with a plurality of first connecting plates, the bottom of the fixing plate is fixedly connected with a bottom plate, and the cross section of the bottom plate is in a right trapezoid shape. The rear wheels are covered with the brake blocks, the second pneumatic cylinders are in transmission connection with the upper portions of the brake blocks, when the forklift brakes, the second pneumatic cylinders are inflated to push the brake blocks to move downwards, the brake blocks make contact with the rear wheels, the auxiliary braking effect is generated, and the overall emergency brake drum effect of the forklift is improved; when the forklift with load is braked, air is inflated into the first pneumatic cylinders, the first pneumatic cylinders push the fixing plates to move downwards, then the bottom plate makes contact with the ground, the forklift is assisted in braking, the contact area between the braking structure and the ground is increased through the bottom plate, the braking effect is improved, and meanwhile the stability of the forklift during braking is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to forklifts, and in particular to an auxiliary brake device. Background Art

[0002] A forklift, also known as a forklift, is a mechanical device used to transport and load and unload goods. Both driving forklifts and manual forklifts are equipped with brakes and auxiliary brake structures. An auxiliary brake device is now designed.

[0003] According to Chinese patent: CN218434763U, a forklift brake assist device includes: a mounting frame, a linkage rod, a baffle, a slide plate, a compression spring, a power component and an abutment component. The mounting frame is fixedly connected to the forklift body and is located on the side of the forklift body close to the driving end. The linkage rod is slidably connected to the mounting frame. The baffle is fixedly connected to the linkage rod and is located on the top of the linkage rod. The slide plate is fixedly connected to the linkage rod and slidably connected to the mounting frame. The compression spring is located between the mounting frame and the slide plate. There are multiple compression springs, and the multiple compression springs are distributed in a circle along the axis of the linkage rod. The power component is located between the baffle and the mounting frame, and the abutment component is connected to the linkage rod. Based on the above-mentioned public patent and in combination with the prior art, it is found that:

[0004] 1. In the currently used manual forklifts, brakes and auxiliary brake systems are generally only set on the front wheels. When dragging goods, the emergency braking effect of the front wheel brake system alone is poor;

[0005] 2. In the auxiliary brake device used in the above reference, a circular friction plate is lowered to assist braking during braking. However, when the forklift is loaded, the friction plate with a smaller area provides a poor braking effect. At the same time, when the forklift with a load is braked by the friction plate, the stability of the forklift itself is poor. Utility Model Content

[0006] The purpose of the utility model is to provide an auxiliary brake device to solve the problems in the use of the existing auxiliary brake device mentioned in the background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An auxiliary brake device, comprising:

[0009] A fixed plate is arranged below the forklift and at a certain distance from the ground, and a plurality of No. 1 connecting plates are fixedly connected above the fixed plate;

[0010] The bottom of the fixed plate is fixedly connected to a bottom plate, and the cross section of the bottom plate is a right-angle trapezoid;

[0011] A pneumatic cylinder No. 1 is arranged above the connecting plate No. 1, and a telescopic rod in the pneumatic cylinder No. 1 is fixedly connected to the connecting plate No. 1;

[0012] A movable connecting plate is movably installed under the forklift, a rear wheel is movably installed inside the movable connecting plate, two connecting rods are fixedly connected above the movable connecting plate, a No. 2 pneumatic cylinder is fixedly connected to the middle of the connecting rod, the end of a telescopic rod slidably installed inside is fixedly connected to the No. 2 connecting plate, and a brake block is fixedly connected below the No. 2 connecting plate.

[0013] Preferably, the No. 1 pneumatic cylinder and the No. 2 pneumatic cylinder are connected with air pipes, and the ends of the air pipes are connected with air pumps;

[0014] The trachea clamp can limit the trachea and is fixedly connected to the fixing plate.

[0015] Preferably, the air pumps are fixedly connected to the fixing rods, and the fixing rods are fixedly connected to the forklift body.

[0016] Preferably, a steering rod is movably installed in the fixed rod, and the upper end of the steering rod is fixedly connected to the operating rod of the forklift.

[0017] Preferably, the lower end of the steering rod is fixedly connected to a transmission rod, and the transmission rod is located below the fixed rod.

[0018] Preferably, front wheels are movably mounted on both sides of the transmission rod, which are driving wheels of the forklift.

[0019] Preferably, a limit block is fixedly connected below the brake block, and the limit block is located on the inner side of the rear wheel, and the brake block and the limit block cover the rear wheel without contacting the rear wheel;

[0020] Brake pads, which cover the inside of the brake shoes.

[0021] The present invention provides an auxiliary brake device, which has the following beneficial effects:

[0022] 1. By setting a brake block on the rear wheel in a covering manner, the brake block is connected to the No. 2 pneumatic cylinder. When the forklift brakes, the No. 2 pneumatic cylinder is inflated to push the brake block downward. The brake block contacts the rear wheel and produces an auxiliary braking effect, thereby improving the overall emergency brake drum effect of the forklift.

[0023] 2. By fixing and connecting several No. 1 pneumatic cylinders under the forklift, and drivingly connecting the fixed plate and the bottom plate under the No. 1 pneumatic cylinder, when the forklift with a load brakes, the No. 1 pneumatic cylinders are inflated, and the No. 1 pneumatic cylinders push the fixed plate downward, and then the bottom plate contacts the ground to assist the forklift in braking. The bottom plate increases the contact area between the braking structure and the ground, thereby improving the braking effect and the stability of the forklift during braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of an auxiliary brake device of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of an auxiliary brake plate of an auxiliary brake device of the utility model;

[0027] Figure 3 This is a schematic diagram of the overall structure of a rear wheel auxiliary brake system of an auxiliary brake device of the utility model;

[0028] Figure 4 The utility model is an auxiliary brake device Figure 3 Schematic diagram of the cross-section structure.

[0029] In the figure: 1. front wheel; 2. fixed rod; 3. air pump; 4. fixed plate; 5. movable connecting plate; 6. rear wheel; 7. air pipe; 8. air pipe clamp; 9. bottom plate; 10. No. 1 pneumatic cylinder; 11. No. 1 connecting plate; 12. connecting rod; 13. No. 2 pneumatic cylinder; 14. No. 2 connecting plate; 15. brake block; 16. limit block; 17. brake pad; 18. transmission rod; 19. steering rod. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] Example: Figure 1-2As shown, an auxiliary brake device comprises: a front wheel 1, which is a driving wheel of a forklift, which is movably mounted on a forklift body through a transmission rod 18 and a steering rod 19, the top of the steering rod 19 is fixedly connected to the forklift operating rod, and the bottom of the steering rod 19 is fixedly connected to the transmission rod 18, and the front wheel 1 is movably mounted on both sides of the transmission rod 18, and the steering rod 19 is movably mounted in a fixed rod 2, and the fixed rod 2 is fixedly connected to the forklift body, and the fixed rod 2 is a limiting component of the front wheel related structure, which is used to prevent the transmission structure such as the front wheel 1 from being separated from the forklift body during operation, and a fixed plate 4 is arranged below the forklift body, and the bottom of the fixed plate 4 is fixedly connected to a bottom plate 9, and the bottom plate 9 with a right-angled trapezoidal cross section can increase the contact area between the brake structure and the ground during auxiliary braking, thereby improving the braking effect. High braking efficiency, while improving the stability of the forklift during braking. A number of No. 1 connecting plates 11 are fixedly connected to the fixed plate 4, and a corresponding number of No. 1 pneumatic cylinders 10 are arranged above it, and the telescopic rod in the No. 1 pneumatic cylinder 10 is fixedly connected to the No. 1 connecting plate 11. The No. 1 connecting plate 11 can increase the contact area between the telescopic rod and the fixed plate 4 and reduce the pressure of the telescopic rod on the fixed plate 4. Each No. 1 pneumatic cylinder 10 is connected to the air pump 3 through the air pipe 7, and the air pump 3 is fixedly connected to both sides of the fixed rod 2. By starting the air pump 3, gas is transported in each No. 1 pneumatic cylinder 10, the telescopic rod is extended, the fixed plate 4 is lowered, and then the bottom plate 9 contacts the ground to assist the forklift in braking. A number of air pipe clamps 8 fixedly connected to the fixed plate 4 can limit the air pipe 7 on the fixed plate 4.

[0032] like Figure 3-4 As shown, it includes: a movable connecting plate 5, which is movably installed under the forklift body and is connected to the lifting system of the forklift. A rear wheel 6 is movably installed inside the movable connecting plate 5. It is one of the driving wheels of the forklift. Generally, a forklift is equipped with two rear wheels 6. A connecting rod 12 is fixedly connected to the movable connecting plate 5 and is located on both sides of the rear wheel 6. A second pneumatic cylinder 13 is fixedly connected between the connecting rods 12. It is also connected to the air pump 3 through the air pipe 7. The ends of the telescopic rods in the second pneumatic cylinder 13 are connected to the second pneumatic cylinder 13 in turn. The connecting plate 14 is a brake block 15, and a street-facing limit block 16 is fixed below the brake block 15. The brake block 15 and the limit block 16 cover the rear wheel 6 and do not contact the rear wheel 6. A brake pad 17 is arranged on the inner side of the brake block 15. The brake block 15 is moved downward by the air pump 3 using the same principle as the No. 1 pneumatic cylinder 10. The brake pad 17 contacts the rear wheel 6 to generate braking, thereby assisting the forklift in braking. When the auxiliary braking structure above the limit block 16 is separated from the forklift body, the limit block 16 can prevent it from flying out to a certain extent.

[0033] Working principle: the air pump 3 in the device can be controlled by a button, and a brake block 15 is arranged on the rear wheel 6 in a covering manner. The brake block 15 is connected to the No. 2 pneumatic cylinder 13 through a transmission. When the forklift brakes, the air pump 3 and the air pipe 7 are used to inflate the No. 2 pneumatic cylinder 13, and the No. 2 pneumatic cylinder 13 pushes the brake block 15 to move downward. The brake block 15 contacts the rear wheel 6 and produces an auxiliary braking effect, thereby improving the overall emergency brake drum effect of the forklift. A number of No. 1 pneumatic cylinders 10 are fixedly connected under the forklift, and the fixed plate 4 and the bottom plate 9 are connected through a transmission under the No. 1 pneumatic cylinder 10. When the forklift with a load brakes, the air pump 3 and the air pipe 7 are used to inflate each No. 1 pneumatic cylinder 10, and the No. 1 pneumatic cylinder 10 pushes the fixed plate 4 to move downward, and then the bottom plate 9 contacts the ground to assist the forklift in braking, and the bottom plate 9 increases the contact area between the braking structure and the ground, thereby improving the braking effect and the stability of the forklift during braking.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary brake device, characterized in that: include: A fixed plate (4) is arranged below the forklift and at a certain distance from the ground, and a plurality of No. 1 connecting plates (11) are fixedly connected above the fixed plate (4); The bottom of the fixed plate (4) is fixedly connected to a bottom plate (9), and the cross section of the bottom plate (9) is a right-angled trapezoid; A pneumatic cylinder (10) is arranged above the first connecting plate (11), and a telescopic rod in the first pneumatic cylinder (10) is fixedly connected to the first connecting plate (11); A movable connecting plate (5) is movably mounted below the forklift, a rear wheel (6) is movably mounted inside the movable connecting plate (5), two connecting rods (12) are fixedly connected above the movable connecting plate (5), a No. 2 pneumatic cylinder (13) is fixedly connected in the middle of the connecting rod (12), the end of a telescopic rod slidably mounted inside the connecting rod is fixedly connected to the No. 2 connecting plate (14), and a brake block (15) is fixedly connected below the No. 2 connecting plate (14).

2. The auxiliary brake device according to claim 1, characterized in that: The first pneumatic cylinder (10) and the second pneumatic cylinder (13) are connected with an air pipe (7), and the end of the air pipe (7) is connected with an air pump (3); The trachea clamp (8) can limit the position of the trachea (7) and is fixedly connected to the fixing plate (4).

3. The auxiliary brake device according to claim 2, characterized in that: The air pumps (3) are fixedly connected to the fixing rods (2), and the fixing rods (2) are fixedly connected to the forklift body.

4. The auxiliary brake device according to claim 3, characterized in that: A steering rod (19) is movably installed in the fixed rod (2), and the upper end of the steering rod is fixedly connected to the operating rod of the forklift.

5. The auxiliary brake device according to claim 4, characterized in that: The lower end of the steering rod (19) is fixedly connected to the transmission rod (18), and the transmission rod (18) is located below the fixed rod (2).

6. The auxiliary brake device according to claim 5, characterized in that: Front wheels (1) are movably mounted on both sides of the transmission rod (18), and are driving wheels of the forklift.

7. The auxiliary brake device according to claim 1, characterized in that: A limit block (16) is fixedly connected below the brake block (15), and the limit block (16) is located on the inner side of the rear wheel. The brake block (15) and the limit block (16) cover the rear wheel (6) and do not contact the rear wheel (6); The brake pad (17) covers the inner side of the brake block (15).

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