Variable pressure type relay valve for automobile

Abstract

The utility model discloses a variable-pressure relay valve for an automobile, which relates to the technical field of variable-pressure relay valves and comprises a relay valve body and an adjusting component. According to the relay valve body, an air inlet pipe is fixed in an air inlet formed in the right side, an air inlet box is fixed to the right end of the air inlet pipe, the air inlet pipe communicates with an inner cavity of the air inlet box, and clamping grooves are evenly formed in the front side and the rear side in the air inlet box; the adjusting assembly comprises fixing strips, a baffle, a connecting plate, a rotating ring and a threaded pipe, the two corresponding fixing strips are fixed to the left side and the right side in the air inlet box, the baffle is slidably connected between the two fixing strips, the connecting plate is fixed to the upper side of the baffle, the rotating ring is rotatably connected to the upper side of the connecting plate, and the threaded pipe is fixed to the interior of the rotating ring. A threaded hole is formed in the upper side of the air inlet box, the air pressure entering the valve body can be adjusted according to requirements, and the air inlet box can adapt to automobiles with different loads.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressure change type relay valve, specifically to the pressure change type relay valve for automobile. BACKGROUND

[0002] The relay valve is part of the air brake system of the automobile, and in the brake system of the truck, the relay valve plays the role of shortening the reaction time and the pressure establishment time;The air inlet of the relay valve is connected with the air cylinder, and the air outlet is connected with the air supply chamber.

[0003] At present, the output air pressure of the air outlet in the relay valve is determined by the area ratio of different pistons, and the size of the piston is fixed, so the output air pressure of the air outlet is constant, and the size of the automobile brake force is matched with the rated load vehicle, but in fact, when the vehicle is lightly loaded, the required brake force is small due to the small load, if the brake force at the rated load is used, the vehicle will be affected, therefore, the utility model provides a pressure change type relay valve for automobile. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of overcoming the defects of the prior art, provides a pressure change type relay valve for automobile, which can adjust the air pressure entering the valve body according to the requirement, so that it can adapt to different load automobiles, and can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a pressure change type relay valve for automobile, comprising a relay valve body and an adjusting assembly.

[0006] The inner part of the air inlet arranged on the right side of the relay valve body is fixed with an air inlet pipe, the right end of the air inlet pipe is fixed with an air inlet tank, the inner cavity of the air inlet pipe and the air inlet tank is communicated, and the front and rear sides of the air inlet tank are evenly provided with clamping grooves.

[0007] Adjusting assembly: it is fixed strip, baffle, connecting plate, swivel and threaded pipe, the left and right sides of the air inlet tank are fixed with two corresponding fixed strips, the baffle is slidably connected between the two fixed strips, the upper side of the baffle is fixed with the connecting plate, the upper side of the connecting plate is rotatably connected with the swivel, the inside of the swivel is fixed with the threaded pipe, the upper side of the air inlet tank is provided with a threaded hole, the threaded pipe is threadedly connected in the threaded hole, the side of the connecting plate is provided with a fixing assembly, the upper end of the threaded pipe is provided with a pulling assembly, the fixing assembly is connected with the pulling assembly, the adjusting assembly is arranged to adjust the air outlet in the air inlet tank.

[0008] Further, the fixing assembly comprises a T-shaped slot, a T-shaped clamping plate, a first spring and a metal pull rope, two corresponding T-shaped slots are formed on the front and back sides of the connecting plate, the T-shaped clamping plate is slidably connected in the T-shaped slot, the T-shaped clamping plate is clamped in the corresponding clamping groove, two corresponding first springs are fixed on the side of the T-shaped clamping plate, and the two first springs are fixed in the T-shaped slot, two corresponding sliding holes are formed on the upper side of the connecting plate, and the metal pull rope is slidably connected in the sliding hole, the lower end of the two metal pull ropes is connected with the side of the two T-shaped clamping plates, and the upper end of the two metal pull ropes is connected with the pulling assembly, and the fixing assembly is arranged to fix the connecting plate.

[0009] Further, the pulling assembly comprises a pull head and a second spring, the pull head is slidably connected in the upper end of the threaded pipe, the second spring is fixed on the lower end of the pull head, the second spring is fixed on the upper side of the connecting plate, and the upper end of the two metal pull ropes is fixed on the lower end of the pull head, and the pulling assembly is arranged to drive the two metal pull ropes to move.

[0010] Further, the air injection pipe is fixed in the air injection port arranged on the right side of the air inlet tank, and the connecting flange is fixed on the circumferential surface of the air injection pipe, so that the external gas is injected into the air inlet tank.

[0011] Further, the upper end of the surface of the threaded pipe is fixed with a rotating ring, and the anti-skid grooves are uniformly distributed on the circumferential surface of the rotating ring, so that the rotating ring is arranged to drive the threaded pipe to rotate.

[0012] Compared with the prior art, the automobile variable pressure relay valve has the following advantages:

[0013] The adjusting assembly is arranged, so that the threaded pipe can be rotated according to the requirements during use, the connecting plate moves upward, the baffle moves under the action of the connecting plate, the air inlet passage diameter in the air inlet tank is adjusted, the air pressure entering the relay valve body is adjusted, and the relay valve body can adapt to different loads of the automobile, so that the adverse effects on the vehicle are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Fig. 1 This is a schematic diagram of the front structure of the utility model;

[0015] Fig. 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0016] Fig. 3 This is a schematic diagram of the structure of the fixing component of the utility model.

[0017] In the figure: 1 relay valve body, 2 air intake pipe, 3 air intake box, 4 card slot, 5 adjustment assembly, 51 fixing bar, 52 baffle, 53 connecting plate, 54 swivel, 55 threaded pipe, 6 fixing assembly, 61 T-shaped slot, 62 T-shaped card plate, 63 first spring, 64 metal pull rope, 7 pulling assembly, 71 pull head, 72 second spring, 8 air injection pipe, 9 connecting flange, 10 toggle ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figs. 1-3 , this embodiment provides a technical solution: a variable pressure relay valve for an automobile, comprising a relay valve body 1 and an adjusting assembly 5;

[0020] Relay valve body 1: An air intake pipe 2 is fixed inside the air intake port on the right side, and an air intake box 3 is fixed to the right end of the air intake pipe 2. The air intake pipe 2 is connected to the inner cavity of the air intake box 3, and evenly distributed slots 4 are opened on the front and back sides of the air intake box 3;

[0021] The adjusting assembly 5 comprises a fixed strip 51, a baffle 52, a connecting plate 53, a rotating ring 54 and a threaded pipe 55, two corresponding fixed strips 51 are fixed on the left and right sides in the air inlet box 3, the baffle 52 is slidably connected between the two fixed strips 51, the connecting plate 53 is fixed on the upper side of the baffle 52, the rotating ring 54 is rotatably connected to the upper side of the connecting plate 53, the threaded pipe 55 is fixed in the rotating ring 54, a threaded hole is formed in the upper side of the air inlet box 3, the threaded pipe 55 is screwed into the threaded hole, the fixed assembly 6 is mounted on the side of the connecting plate 53, the pulling assembly 7 is arranged at the upper end in the threaded pipe 55, the fixed assembly 6 is connected with the pulling assembly 7, the fixed assembly 6 comprises a T-shaped slot 61, a T-shaped clamping plate 62, a first spring 63 and a metal pull rope 64, two corresponding T-shaped slots 61 are formed in the front and back sides of the connecting plate 53, the T-shaped clamping plate 62 is slidably connected in the T-shaped slot 61, the T-shaped clamping plate 62 is clamped in the corresponding clamping groove 4, the two corresponding first springs 63 are fixed on the side of the T-shaped clamping plate 62, the two first springs 63 are fixed in the T-shaped slot 61, two corresponding sliding holes are formed in the upper side of the connecting plate 53, the metal pull rope 64 is slidably connected in the sliding hole, the lower end of the metal pull rope 64 is connected with the side of the T-shaped clamping plate 62, the upper end of the metal pull rope 64 is connected with the pulling assembly 7, the pulling assembly 7 comprises a pull head 71 and a second spring 72, the pull head 71 is slidably connected in the upper end of the threaded pipe 55, the second spring 72 is fixed at the lower end of the pull head 71, the second spring 72 is fixed on the upper side of the connecting plate 53, the upper end of the metal pull rope 64 is fixed at the lower end of the pull head 71, the pulling assembly 7 drives the two metal pull ropes 64 to move, the fixed assembly 6 fixes the connecting plate 53, and the adjusting assembly 5 adjusts the air outlet in the air inlet box 3.

[0022] The air injection pipe 8 is fixed in the air injection port on the right side of the air inlet box 3, and the connecting flange 9 is fixed on the circumference of the air injection pipe 8.

[0023] The upper end of the surface of the threaded pipe 55 is fixed with the rotating ring 10, the anti-slip grooves are uniformly distributed on the circumference of the rotating ring 10, and the rotating ring 10 drives the threaded pipe 55 to rotate.

[0024] The working principle of the variable pressure type relay valve for the automobile is as follows: in use, first, two metal pull ropes 64 are pulled upward by a pull head 71 to make two T-shaped clamping plates 62 move and separate from two corresponding clamping grooves 4, then the clamping plates 62 are moved upward by rotating a threaded pipe 55 through a rotating ring 10 after the separation, the threaded pipe 55 is moved upward to make a connecting plate 53 move upward, the connecting plate 53 is moved upward to drive a baffle 52 to move, so that the caliber of an air inlet passage in an air inlet tank 3 is adjusted, and thus the air pressure in the relay valve body 1 is adjusted, in this case, the relay valve body 1 can adapt to automobiles with different loads, and adverse effects on the automobile are avoided, and after the air pressure is adjusted, the pull head 71 is loosened, at this time, the two T-shaped clamping plates 62 will enter the interiors of the two corresponding clamping grooves 4 under the action of four first springs 63, in this case, the connecting plate 53 can be fixed, and after the fixing, the stability of the baffle 52 can be ensured.

[0025] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A pressure-operated relay valve for an automobile, characterized by: Including relay valve body (1) and adjusting assembly (5); The relay valve body (1) is internally fixed with an air inlet pipe (2) at the right side of the air inlet, the right end of the air inlet pipe (2) is fixed with an air inlet tank (3), the air inlet pipe (2) communicates with the inner cavity of the air inlet tank (3), and the front and back sides in the air inlet tank (3) are provided with uniformly distributed clamping grooves (4). The adjusting assembly (5) comprises a fixed strip (51), a baffle (52), a connecting plate (53), a rotating ring (54) and a threaded pipe (55), two corresponding fixed strips (51) are fixed to the left and right sides in the air inlet tank (3), the baffle (52) is slidably connected between the two fixed strips (51), the connecting plate (53) is fixed to the upper side of the baffle (52), the rotating ring (54) is rotatably connected to the upper side of the connecting plate (53), the threaded pipe (55) is fixed in the rotating ring (54), a threaded hole is formed in the upper side of the air inlet tank (3), the threaded pipe (55) is threadedly connected in the threaded hole, and a fixing assembly (6) is mounted to the side of the connecting plate (53).

2. The pressure differential relay valve for an automobile according to claim 1, characterized by: The fixing assembly (6) comprises a T-shaped groove (61), a T-shaped clamping plate (62), a first spring (63) and a metal pull rope (64), two corresponding T-shaped grooves (61) are formed in the front and back sides of the connecting plate (53), the T-shaped clamping plate (62) is slidably connected in the T-shaped groove (61), the T-shaped clamping plate (62) is clamped in the corresponding clamping groove (4), the two corresponding first springs (63) are fixed to the side of the T-shaped clamping plate (62), the two first springs (63) are fixed in the T-shaped groove (61), two corresponding sliding holes are formed in the upper side of the connecting plate (53), and the metal pull rope (64) is slidably connected in the sliding hole, the lower ends of the two metal pull ropes (64) are connected with the sides of the two T-shaped clamping plates (62), and the upper ends of the two metal pull ropes (64) are connected with the pulling assembly (7).

3. The pressure differential relay valve for an automobile according to claim 2, characterized by: The pulling assembly (7) comprises a pull head (71) and a second spring (72), the pull head (71) is slidably connected to the upper end in the threaded pipe (55), the second spring (72) is fixed to the lower end of the pull head (71), and the second spring (72) is fixed to the upper side of the connecting plate (53).

4. The pressure-sensitive relay valve for an automobile according to claim 1, characterized by: The air injection pipe (8) is fixed in the air injection port at the right side of the air inlet tank (3), and the connecting flange (9) is fixed to the circumferential surface of the air injection pipe (8).

5. The pressure differential relay valve for an automobile according to claim 1, characterized by: The upper end of the surface of the threaded pipe (55) is fixed with a rotating ring (10), and the circumferential surface of the rotating ring (10) is provided with uniformly distributed anti-skid grooves.

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