Brake booster with connection reinforcing structure

Abstract

The utility model discloses a brake booster with a connection reinforcing structure, which comprises a booster body, a push rod arranged on one side of the booster body, two mounting blocks fixed at one end of the push rod and a pedal positioned on one side of the two mounting blocks, and one side, close to the mounting blocks, of the pedal is fixedly connected with a first connecting block. The first connecting block is located between the two mounting blocks, the first connecting block is rotationally connected with the two mounting blocks through a first mounting shaft, positioning grooves are formed in the outer sides of the two ends of the first mounting shaft, first nuts are in threaded connection with the two ends of the first mounting shaft, and the two first nuts are attached to the outer sides of the two mounting blocks correspondingly; according to the pedal and brake connecting device, the two first nuts are positioned through the positioning rod, the positioning groove and the limiting block, the stability of the first nuts on the first mounting shaft is guaranteed, and therefore the connecting stability between a pedal and a brake is guaranteed.

Description

Technical Field

[0001] The utility model relates to a brake booster with a connection reinforcement structure, belonging to the technical field of brake boosters. Background Art

[0002] Brake boosters are brake boosters widely used in light to medium-sized vehicles. They can be roughly divided into vacuum boosters, hydraulic boosters and pneumatic boosters. The booster push rod is usually rotatably connected to the pedal through a mounting shaft, and both ends of the mounting shaft are threaded with a first nut, which is fixed by the nut to connect the booster push rod to the pedal.

[0003] However, the connection between the pedal and the push rod is relatively simple. Over time, when the connection between the nut and the mounting shaft becomes loose or the mounting shaft is damaged, the connection between the pedal and the booster push rod will become unstable, which will affect the braking effect and further affect safety. Utility Model Content

[0004] The purpose of the utility model is to provide a brake booster with a connection reinforcement structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake booster with a connection reinforcement structure, comprising a booster body, a push rod arranged on one side of the booster body, two mounting blocks fixed at one end of the push rod, and a pedal located on one side of the two mounting blocks, a first connecting block is fixedly connected to a side of the pedal close to the mounting block, the first connecting block is located between the two mounting blocks, the first connecting block is rotatably connected to the two mounting blocks through a first mounting shaft, positioning grooves are arranged on the outer sides of both ends of the first mounting shaft, first nuts are threadedly connected at both ends of the first mounting shaft, the two first nuts are respectively fitted with the outer sides of the two mounting blocks, a limiting mechanism is arranged on one side of the two first nuts, the limiting mechanism passes through the first connecting block, a mounting frame is fixedly connected to the upper ends of the two mounting blocks, a positioning mechanism is arranged on the mounting frame, and the bottom ends of both sides of the positioning mechanism correspond to the two positioning grooves respectively; a second connecting block is arranged on one side of the first connecting block, the second connecting block is rotatably connected to the two mounting blocks through a second mounting shaft, second nuts are threadedly connected at both ends of the second mounting shaft, the two second nuts are respectively fitted with the outer sides of the two mounting blocks, and an auxiliary mechanism is arranged between the bottom end of the second connecting block and the pedal.

[0006] Preferably, the positioning mechanism includes a long strip, two positioning rods, two springs and a pull ring. The long strip is located above the mounting frame. A pull ring is fixedly connected to the center position of the upper end of the long strip. Two positioning rods are vertically fixed on both sides of the bottom end of the long strip. The two positioning rods are movably connected to the mounting frame. The bottom ends of the two positioning rods are movably inserted into corresponding positioning grooves. The two positioning rods are respectively fitted with the outer sides of the two first nuts. Two springs are fixedly connected between the long strip and the mounting frame. The two springs are respectively sleeved on the outer sides of the two positioning rods.

[0007] Preferably, the limiting mechanism includes a rotating shaft, two limiting blocks and two torsion springs. The rotating shaft passes through the first connecting block. The rotating shaft is rotatably connected to the first connecting block. Both ends of the rotating shaft are fixedly sleeved with limiting blocks. The two limiting blocks are respectively fitted with the outer sides of the two first nuts. A torsion spring is fixedly connected between the two limiting blocks and the first connecting block. The two torsion springs are both sleeved on the outer periphery of the rotating shaft.

[0008] Preferably, the auxiliary mechanism includes a storage plate, a bottom block, an insertion plate, two guide rods, two side openings and a slot, the bottom block is fixedly connected to the bottom end of the second connecting block, the bottom end of the bottom block is rotatably connected to the insertion plate, one end of the storage plate is rotatably connected to the pedal, a slot is provided at one end of the storage plate close to the insertion plate, the end of the insertion plate away from the bottom block is movably inserted in the slot, side openings are provided on both sides of the slot, guide rods are fixedly connected on both sides of the insertion plate, and the two guide rods are slidably connected to the two side openings respectively.

[0009] Preferably, the depth of the slot is greater than the length of the two side openings, and a distance is left between one end of the plug plate located in the slot and the inner wall of the slot.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The two first nuts are positioned by the positioning rod, the positioning groove and the limiting block to ensure the stability of the first nuts on the first mounting shaft, thereby ensuring the connection stability between the pedal and the brake.

[0012] The storage plate, the plug plate, the bottom block, the second connecting block and the second mounting shaft can continue to push the push rod when the first mounting shaft is damaged and cannot be used normally, thereby ensuring that the car can run normally before arriving at the car repair shop, preventing malfunction during driving and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection between the pedal and two mounting blocks of the utility model;

[0016] Figure 4 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the auxiliary mechanism structure of the utility model.

[0018] In the figure: 1. booster body; 2. push rod; 3. mounting block; 4. pedal; 5. auxiliary mechanism; 51. storage plate; 52. bottom block; 53. plug plate; 54. guide rod; 55. side port; 56. slot; 6. positioning mechanism; 61. strip; 62. positioning rod; 63. spring; 64. pull ring; 7. limiting mechanism; 71. rotating shaft; 72. limiting block; 73. torsion spring; 8. first connecting block; 9. second connecting block; 10. mounting frame; 11. first nut; 12. second nut; 13. second mounting shaft; 14. first mounting shaft; 15. positioning groove. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5The utility model provides a technical solution: a brake booster with a connection reinforcement structure, comprising a booster body 1, a push rod 2 arranged on one side of the booster body 1, two mounting blocks 3 fixed at one end of the push rod 2, and a pedal 4 located on one side of the two mounting blocks 3, a first connecting block 8 is fixedly connected to the side of the pedal 4 close to the mounting block 3, the first connecting block 8 is located between the two mounting blocks 3, the first connecting block 8 is rotatably connected to the two mounting blocks 3 through a first mounting shaft 14, positioning grooves 15 are provided on the outer sides of both ends of the first mounting shaft 14, first nuts 11 are threadedly connected on both ends of the first mounting shaft 14, the two first nuts 11 are respectively fitted with the outer sides of the two mounting blocks 3, a limiting mechanism 7 is provided on one side of the two first nuts 11, and the limiting mechanism 7 runs through the first A connecting block 8, a mounting frame 10 is fixedly connected to the upper ends of the two mounting blocks 3, and a positioning mechanism 6 is provided on the mounting frame 10, and the bottom ends of the two sides of the positioning mechanism 6 correspond to the two positioning grooves 15 respectively; a second connecting block 9 is provided on one side of the first connecting block 8, and the second connecting block 9 is rotatably connected to the two mounting blocks 3 through a second mounting shaft 13, and second nuts 12 are threadedly connected to both ends of the second mounting shaft 13, and the two second nuts 12 are respectively fitted with the outer sides of the two mounting blocks 3, and an auxiliary mechanism 5 is provided between the bottom end of the second connecting block 9 and the pedal 4, and the two first nuts 11 are positioned by the positioning rod 62, the positioning groove 15 and the limit block 72 to ensure the stability of the first nut 11 on the first mounting shaft 14, thereby ensuring the connection stability between the pedal 4 and the brake.

[0021] The positioning mechanism 6 includes a long strip 61, two positioning rods 62, two springs 63 and a pull ring 64. The long strip 61 is located above the mounting frame 10. The pull ring 64 is fixedly connected to the center position of the upper end of the long strip 61. Two positioning rods 62 are vertically fixed on both sides of the bottom end of the long strip 61. The two positioning rods 62 are movably sleeved with the mounting frame 10. The bottom ends of the two positioning rods 62 are movably inserted into the corresponding positioning grooves 15. The two positioning rods 62 are respectively fitted with the outer sides of the two first nuts 11. Two springs 63 are fixedly connected between the long strip 61 and the mounting frame 10. The two springs 63 are respectively sleeved on the outer sides of the two positioning rods 62. The two first nuts 11 are positioned by the two positioning rods 62 to prevent the two first nuts 11 from being attached to the first mounting frame The shaft 14 is loosely connected and moves, ensuring that the two first nuts 11 are always stable on the first mounting shaft 14 and the outside of the two mounting blocks 3, thereby ensuring the stability of the connection between the pedal 4 and the booster. Later, the long strip 61 is pulled upward by the pull ring 64, and the long strip 61 drives the two positioning rods 62 to move upward. After the positioning rods 62 are completely separated from the positioning grooves 15, the first nut 11 can be disassembled; the limiting mechanism 7 includes a rotating shaft 71, two limiting blocks 72 and two torsion springs 73. The rotating shaft 71 passes through the first connecting block 8, and the rotating shaft 71 is rotatably connected to the first connecting block 8. The limiting blocks 72 are fixedly sleeved on both ends of the rotating shaft 71. The two limiting blocks 72 are respectively fitted with the outsides of the two first nuts 11, and the two limiting blocks 72 are respectively fitted with the first The connecting blocks 8 are fixedly connected with torsion springs 73, and the two torsion springs 73 are both sleeved on the periphery of the rotating shaft 71. The first nut 11 is further positioned by the limit block 72 to ensure the stability of the first nut 11 on the first mounting shaft 14. The limit block 72 is rotated, and the torsion spring 73 will be twisted when the limit block 72 and the rotating shaft 71 rotate. When the limit block 72 is separated from the first nut 11, the first nut 11 can be disassembled; the auxiliary mechanism 5 includes a storage plate 51, a bottom block 52, an insert plate 53, two guide rods 54, two side openings 55 and a slot 56. The bottom block 52 is fixedly connected to the bottom end of the second connecting block 9, and the bottom end of the bottom block 52 is rotatably connected to the insert plate 53. One end of the storage plate 51 is rotatably connected to the pedal 4, and the storage plate 51 is close to the insert plate 5 3 is provided with a slot 56, one end of the plug plate 53 away from the bottom block 52 is movably inserted in the slot 56, both sides of the slot 56 are provided with side openings 55, both sides of the plug plate 53 are fixedly connected with guide rods 54, and the two guide rods 54 are slidably connected with the two side openings 55 respectively. When the first installation shaft 14 is damaged and the connection stability is affected, so that the pedal 4 cannot push the push rod 2 through the first installation shaft 14, the pedal 4 is continued to be stepped on. After the end of the plug plate 53 contacts the inside of the slot 56, the push rod 2 can continue to be pushed through the storage plate 51, the plug plate 53, the bottom block 52, the second connection block 9 and the second installation shaft 13, thereby ensuring that the car can run normally before arriving at the car repair shop, preventing malfunction during driving, and ensuring safety;The depth of the slot 56 is greater than the length of the two side openings 55, and a gap is left between one end of the insert plate 53 located in the slot 56 and the inner wall of the slot 56, ensuring that when the first mounting shaft 14 is in normal use, the pedal 4 is mainly matched with the push rod 2 through the first mounting shaft 14, and the end of the insert plate 53 does not contact the inner wall of the slot 56, thereby not hindering the linkage between the pedal 4 and the push rod 2. ;

[0022] Specifically, when the present invention is used, positioning grooves 15 are provided on both sides of the upper end of the first mounting shaft 14, and the two positioning rods 62 are inserted into the corresponding positioning grooves 15. The two first nuts 11 are positioned by the two positioning rods 62 to prevent the two first nuts 11 from being loosely connected to the first mounting shaft 14 and moving, thereby ensuring that the two first nuts 11 are always stable on the first mounting shaft 14 and the outsides of the two mounting blocks 3, thereby ensuring the connection stability between the pedal 4 and the booster. Later, the long strip 61 is pulled upward by the pull ring 64, and the long strip 61 drives the two positioning rods 62 to move upward. After the positioning rods 62 are completely separated from the positioning grooves 15, the first nut 11 can be disassembled; at the same time, a limit block 72 is also provided on one side of the two first nuts 11, and the first nut 11 is further positioned by the limit block 72 to ensure that the first nut 11 is stable. To ensure the stability of the first nut 11 on the first mounting shaft 14, the limit block 72 is rotated. When the limit block 72 and the rotating shaft 71 rotate, the torsion spring 73 will be twisted. When the limit block 72 is separated from the first nut 11, the first nut 11 can be disassembled; when the first mounting shaft 14 and the pedal 4 are normally connected, the end of the plug plate 53 does not contact the deepest inner wall of the slot 56. When the first mounting shaft 14 is damaged and the connection stability is affected, the pedal 4 cannot push the push rod 2 through the first mounting shaft 14. Continue to step on the pedal 4. After the end of the plug plate 53 contacts the inside of the slot 56, the push rod 2 can continue to be pushed through the storage plate 51, the plug plate 53, the bottom block 52 and the second connecting block 9 and the second mounting shaft 13, thereby ensuring that the car can drive normally before arriving at the car repair shop, preventing failure during driving, and ensuring safety.

[0023] 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 booster with a connection reinforcement structure, comprising a booster body (1), a push rod (2) arranged on one side of the booster body (1), two mounting blocks (3) fixed at one end of the push rod (2), and a pedal (4) located on one side of the two mounting blocks (3), characterized in that: A first connecting block (8) is fixedly connected to one side of the pedal (4) close to the mounting block (3); the first connecting block (8) is located between the two mounting blocks (3); the first connecting block (8) is rotatably connected to the two mounting blocks (3) via a first mounting shaft (14); positioning grooves (15) are provided on the outer sides of both ends of the first mounting shaft (14); first nuts (11) are threadedly connected to both ends of the first mounting shaft (14); the two first nuts (11) are respectively fitted with the outer sides of the two mounting blocks (3); a limiting mechanism (7) is provided on one side of the two first nuts (11); the limiting mechanism (7) passes through the first connecting block (8); and the two The upper end of each mounting block (3) is fixedly connected to a mounting frame (10), and a positioning mechanism (6) is provided on the mounting frame (10), and the bottom ends of both sides of the positioning mechanism (6) respectively correspond to the two positioning grooves (15); a second connecting block (9) is provided on one side of the first connecting block (8), and the second connecting block (9) is rotatably connected to the two mounting blocks (3) through a second mounting shaft (13), and second nuts (12) are threadedly connected at both ends of the second mounting shaft (13), and the two second nuts (12) are respectively fitted with the outer sides of the two mounting blocks (3); an auxiliary mechanism (5) is provided between the bottom end of the second connecting block (9) and the pedal (4).

2. The brake booster with a connection reinforcement structure according to claim 1, characterized in that: The positioning mechanism (6) comprises a long strip (61), two positioning rods (62), two springs (63) and a pull ring (64); the long strip (61) is located above the mounting frame (10); a pull ring (64) is fixedly connected to the center of the upper end of the long strip (61); two positioning rods (62) are vertically fixed on both sides of the bottom end of the long strip (61); the two positioning rods (62) are movably sleeved with the mounting frame (10); the bottom ends of the two positioning rods (62) are movably inserted into corresponding positioning grooves (15); the two positioning rods (62) are respectively fitted with the outer sides of the two first nuts (11); two springs (63) are fixedly connected between the long strip (61) and the mounting frame (10); the two springs (63) are respectively sleeved on the outer sides of the two positioning rods (62).

3. The brake booster with a connection reinforcement structure according to claim 1, characterized in that: The limiting mechanism (7) comprises a rotating shaft (71), two limiting blocks (72) and two torsion springs (73); the rotating shaft (71) passes through the first connecting block (8); the rotating shaft (71) is rotatably connected to the first connecting block (8); both ends of the rotating shaft (71) are fixedly sleeved with the limiting blocks (72); the two limiting blocks (72) are respectively fitted with the outer sides of the two first nuts (11); the two limiting blocks (72) and the first connecting block (8) are fixedly connected with the torsion springs (73); the two torsion springs (73) are sleeved on the outer side of the rotating shaft (71).

4. The brake booster with a connection reinforcement structure according to claim 1, characterized in that: The auxiliary mechanism (5) comprises a storage plate (51), a bottom block (52), an inserting plate (53), two guide rods (54), two side openings (55) and a slot (56); the bottom block (52) is fixedly connected to the bottom end of the second connecting block (9); the inserting plate (53) is rotatably connected to the bottom end of the bottom block (52); one end of the storage plate (51) is rotatably connected to the pedal (4); an end of the storage plate (51) close to the inserting plate (53) is provided with a slot (56); an end of the inserting plate (53) away from the bottom block (52) is movably inserted in the slot (56); side openings (55) are provided on both sides of the slot (56); guide rods (54) are fixedly connected to both sides of the inserting plate (53); and the two guide rods (54) are slidably connected to the two side openings (55) respectively.

5. The brake booster with a connection reinforcement structure according to claim 4, characterized in that: The depth of the slot (56) is greater than the length of the two side openings (55), and a distance is left between one end of the inserting plate (53) located in the slot (56) and the inner wall of the slot (56).

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