Auxiliary locking device of brake

Abstract

The utility model belongs to the technical field of brakes, and discloses a brake auxiliary locking device which comprises a bottom support, two first-level rotating shafts which are symmetrically arranged left and right are installed on the top of the bottom support, the two first-level rotating shafts are rotationally connected with a left side pull rod and a right side pull rod respectively, and a brake wheel is arranged between the left side pull rod and the right side pull rod. A left brake shoe and a right brake shoe are symmetrically arranged on the left side and the right side of the brake wheel correspondingly and fixedly connected with a left pull rod and a right pull rod correspondingly, secondary rotating shafts are installed at the top ends of the left pull rod and the right pull rod correspondingly, and an electric telescopic rod is connected between the secondary rotating shafts. Limiting plates are arranged on the outer side of the primary rotating shaft, the positions of the pair of limiting plates correspond to the positions of the left pull rod and the right pull rod, the electric telescopic rod shrinks to enable the left pull rod and the right pull rod to push the left brake shoe and the right brake shoe to press the brake wheel, and therefore the brake wheel stops rotating, the gate stops sliding down, and accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of brakes, in particular to a brake auxiliary locking device. Background Art

[0002] At present, fixed winch-type gate hoists are relatively widely used. Among them, the brake, as a unique component of the winch-type gate hoist, plays a vital safety role in the operation of the equipment. It can make the gate controlled by the gate hoist stay at the required height.

[0003] However, during the use of the equipment, we found that when the gate is opened to a certain height, the brake holding mechanism is affected by various factors, resulting in insufficient braking torque to hold the brake wheel tightly, and the gate will move downward under the action of its own gravity. At present, the measure adopted to deal with the slow sliding and falling of the gate is to use a wooden stick to press the brake wheel to gradually slow down the falling speed of the gate, thereby avoiding accidents. However, this method has safety hazards and low reliability. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a brake auxiliary locking device, which has the advantages of timely, fast and effective compression of the brake wheel, thereby stopping the abnormal rotation of the brake wheel and stopping the gate from falling, thus eliminating the occurrence of accidents.

[0005] The utility model provides the following technical solutions: a brake auxiliary locking device, comprising a bottom bracket, two left-right symmetrically arranged primary rotating shafts are installed on the top of the bottom bracket, the two primary rotating shafts are rotatably connected with a left pull rod and a right pull rod respectively, a brake wheel is arranged between the left pull rod and the right pull rod, the left and right sides of the brake wheel are respectively provided with symmetrically arranged left brake shoes and right brake shoes, the left brake shoes and the right brake shoes are respectively fixedly connected with the left pull rod and the right pull rod, secondary rotating shafts are installed on the top ends of the left pull rod and the right pull rod, an electric telescopic rod is connected between the secondary rotating shafts, a limit plate is arranged on the outer side of the primary rotating shaft, and the positions of a pair of the limit plates correspond to the left pull rod and the right pull rod.

[0006] Preferably, a telescopic top rod is provided below the electric telescopic rod, and two ends of the telescopic top rod are respectively connected to a left pull rod and a right pull rod through a three-stage rotating shaft.

[0007] Preferably, the telescopic top rod comprises a fixed tube, a movable plate is arranged in the fixed tube, springs and movable rods are respectively connected to both sides of the movable plate, and one end of the movable rod away from the movable plate passes through the fixed tube.

[0008] Preferably, the left brake shoe and the right brake shoe are both composed of a mounting seat and a brake pad, the inner wall of the mounting seat is provided with a positioning groove, the positioning groove is provided with a positioning piece, and the positioning piece is fixedly connected to the brake pad.

[0009] Preferably, a primary magnet plate is fixed to a side of the positioning member away from the brake pad, and a secondary magnet plate is provided at a position on the inner wall of the positioning slot corresponding to the primary magnet plate.

[0010] Preferably, a positioning frame is fixedly connected to a side of the mounting seat away from the brake pad, and the positioning frame is connected to the left pull rod and the right pull rod through fixing bolts.

[0011] Preferably, both the left pull rod and the right pull rod are provided with fixing screw holes, and the fixing screw holes are threadedly connected with fixing bolts.

[0012] Preferably, the cross section of the limiting plate is L-shaped, and the limiting plate is connected to the bottom bracket via positioning bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a left pull rod, a right pull rod, a left brake shoe, a right brake shoe, and an electric telescopic rod. The electric telescopic rod is retracted to make the left pull rod and the right pull rod push the left brake shoe and the right brake shoe to press the brake wheel, so that the brake wheel stops rotating and the gate stops sliding down, avoiding accidents;

[0015] 2. The utility model provides a telescopic top rod, which forces the left pull rod and the right pull rod to move away from each other when the electric telescopic rod is not retracted, thereby preventing the left brake shoe and the right brake shoe from accidentally touching the brake wheel. In addition, an easily replaceable brake shoe is provided, which can be replaced in time after being worn, which is beneficial to the use of the left brake shoe and the right brake shoe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the mounting seat of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the brake pad of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the left side pull rod of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the telescopic top rod of the utility model;

[0021] In the figure: 1, bottom bracket; 2, primary shaft; 3, left tie rod; 4, right tie rod; 5, brake wheel;

[0022] 6. Left brake shoe; 61. Mounting seat; 62. Brake pad; 63. Positioning slide; 64. Positioning piece;

[0023] 7. Right brake shoe; 8. Secondary rotating shaft; 9. Electric telescopic rod; 10. Limit plate;

[0024] 11. telescopic top rod; 111. fixed pipe; 112. movable plate; 113. spring; 114. movable rod;

[0025] 12. Third-stage rotating shaft; 13. First-stage magnet plate; 14. Second-stage magnet plate; 15. Positioning frame; 16. Fixing bolt; 17. Fixing screw hole; 18. Positioning bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, the utility model provides a brake auxiliary locking device, comprising a bottom bracket 1, two left-right symmetrically arranged primary rotating shafts 2 are installed on the top of the bottom bracket 1, the two primary rotating shafts 2 are rotatably connected with a left pull rod 3 and a right pull rod 4 respectively, a brake wheel 5 is arranged between the left pull rod 3 and the right pull rod 4, the left and right sides of the brake wheel 5 are respectively provided with a symmetrically arranged left brake shoe 6 and a right brake shoe 7, the left brake shoe 6 and the right brake shoe 7 are respectively fixedly connected with the left pull rod 3 and the right pull rod 4, a secondary rotating shaft 8 is installed on the top of the left pull rod 3 and the right pull rod 4, an electric telescopic rod 9 is connected between the secondary rotating shafts 8, the electric telescopic rod 9 contracts to make the left pull rod 3 and the right pull rod 4 push the left brake shoe 6 and the right brake shoe 7 to press the brake wheel 5, so that the brake wheel 5 stops rotating, the gate stops sliding down, and accidents are avoided, a limit plate 10 is arranged on the outer side of the primary rotating shaft 2, and the positions of a pair of limit plates 10 correspond to the left pull rod 3 and the right pull rod 4.

[0028] Specifically, a telescopic top rod 11 is provided under the electric telescopic rod 9, and the two ends of the telescopic top rod 11 are respectively connected to the left pull rod 3 and the right pull rod 4 through a three-stage rotating shaft 12. When the electric telescopic rod 9 is not retracted, the left pull rod 3 and the right pull rod 4 are forced to move away from each other, thereby preventing the left brake shoe 6 and the right brake shoe 7 from accidentally touching the brake wheel 5.

[0029] Furthermore, the telescopic top rod 11 includes a fixed tube 111 , in which a movable plate 112 is disposed. Both sides of the movable plate 112 are respectively connected with a spring 113 and a movable rod 114 , and one end of the movable rod 114 away from the movable plate 112 passes through the fixed tube 111 .

[0030] Furthermore, the left brake shoe 6 and the right brake shoe 7 are both composed of a mounting seat 61 and a brake pad 62. A positioning groove 63 is provided on the inner wall of the mounting seat 61. A positioning member 64 is provided in the positioning groove 63. The positioning member 64 is fixedly connected to the brake pad 62. After the brake pad 62 is worn, it can be replaced in time, which is beneficial to the use of the left brake shoe 6 and the right brake shoe 7.

[0031] A primary magnet plate 13 is fixed to one side of the positioning member 64 away from the brake pad 62 , and a secondary magnet plate 14 is provided on the inner wall of the positioning slot 63 at a position corresponding to the primary magnet plate 13 to further fix the brake pad 62 on the mounting seat 61 .

[0032] A positioning frame 15 is fixedly connected to a side of the mounting seat 61 away from the brake pad 62 , and the positioning frame 15 is connected to the left tie rod 3 and the right tie rod 4 via a fixing bolt 16 .

[0033] Both the left pull rod 3 and the right pull rod 4 are provided with fixing screw holes 17 , and the fixing screw holes 17 are threadedly connected with fixing bolts 16 .

[0034] The cross section of the limiting plate 10 is L-shaped. The limiting plate 10 is connected to the bottom bracket 1 via positioning bolts 18 to play a limiting role.

[0035] Among them, the electric telescopic rod 9 is the existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0036] The working principle of the utility model is as follows: when the brake wheel 5 rotates abnormally, the electric telescopic rod 9 contracts, the left pull rod 3 and the right pull rod 4 both rotate around the corresponding primary rotating shaft 2, and then the left brake shoe 6 and the right brake shoe 7 fixedly connected to the left pull rod 3 and the right pull rod 4 both approach the brake wheel 5, the left brake shoe 6 and the right brake shoe 7 squeeze the brake wheel 5, forcing the brake wheel 5 to stop rotating abnormally, and the gate stops falling, so as to eliminate accidents. When the brake pad 62 of the left brake shoe 6 or the right brake shoe 7 is seriously worn, it moves toward the positioning slide groove 63 The brake pad 62 is pushed on one side of the opening to make the positioning member 64 leave the positioning slot 63, and a new brake pad 62 can be replaced. The primary magnet plate 13 fixed on the brake pad 62 and the secondary magnet plate 14 on the positioning member 64 are attracted to each other to enhance the fixing effect of the brake pad 62 on the mounting base 61. When the electric telescopic rod 9 fails or is replaced, the two ends of the telescopic top rod 11 support the left pull rod 3 and the right pull rod 4 to prevent the left brake shoe 6 and the right brake shoe 7 from touching the brake wheel 5, which is beneficial to the use of the brake auxiliary locking device.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake auxiliary locking device, comprising a bottom bracket (1), characterized in that: Two primary rotating shafts (2) symmetrically arranged on the left and right are installed on the top of the bottom bracket (1). The two primary rotating shafts (2) are rotatably connected to a left pull rod (3) and a right pull rod (4) respectively. A brake wheel (5) is provided between the left pull rod (3) and the right pull rod (4). A left brake shoe (6) and a right brake shoe (7) symmetrically arranged are provided on the left and right sides of the brake wheel (5). The left brake shoe (6) and the right brake shoe (7) are connected to the left pull rod (3) and the right pull rod (4) respectively. A secondary rotating shaft (8) is installed on the top of the left pull rod (3) and the right pull rod (4). An electric telescopic rod (9) is connected between the secondary rotating shafts (8). A limit plate (10) is provided on the outer side of the primary rotating shaft (2). The positions of the pair of limit plates (10) correspond to the left pull rod (3) and the right pull rod (4).

2. A brake auxiliary locking device according to claim 1, characterized in that: A telescopic top rod (11) is provided below the electric telescopic rod (9), and two ends of the telescopic top rod (11) are respectively connected to a left pull rod (3) and a right pull rod (4) via a three-stage rotating shaft (12).

3. A brake auxiliary locking device according to claim 2, characterized in that: The telescopic top rod (11) comprises a fixed tube (111), a movable plate (112) is arranged inside the fixed tube (111), springs (113) and movable rods (114) are respectively connected to two sides of the movable plate (112), and one end of the movable rod (114) away from the movable plate (112) passes through the fixed tube (111).

4. A brake auxiliary locking device according to claim 1, characterized in that: The left brake shoe (6) and the right brake shoe (7) are both composed of a mounting seat (61) and a brake pad (62); a positioning groove (63) is provided on the inner wall of the mounting seat (61); a positioning member (64) is provided in the positioning groove (63); and the positioning member (64) is fixedly connected to the brake pad (62).

5. A brake auxiliary locking device according to claim 4, characterized in that: A primary magnet plate (13) is fixed to a side of the positioning member (64) away from the brake pad (62), and a secondary magnet plate (14) is provided at a position on the inner wall of the positioning slot (63) corresponding to the primary magnet plate (13).

6. A brake auxiliary locking device according to claim 4, characterized in that: A positioning frame (15) is fixedly connected to a side of the mounting seat (61) away from the brake pad (62), and the positioning frame (15) is connected to the left pull rod (3) and the right pull rod (4) via a fixing bolt (16).

7. A brake auxiliary locking device according to claim 6, characterized in that: The left pull rod (3) and the right pull rod (4) are both provided with fixing screw holes (17), and the fixing screw holes (17) are threadedly connected to fixing bolts (16).

8. A brake auxiliary locking device according to claim 1, characterized in that: The cross section of the limiting plate (10) is in an L-shaped structure, and the limiting plate (10) is connected to the bottom bracket (1) via a positioning bolt (18).

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