Air booster pump test fixture

Abstract

The utility model discloses a test fixture for an air booster pump, which relates to the technical field of air booster pump testing and comprises a fixing fixture, a support frame and an air booster pump body, an arc-shaped positioning groove is arranged on the inner side of the fixing fixture, and the air booster pump body is arranged above the arc-shaped positioning groove. A supporting frame is installed at the top end of the fixing clamp, an inserting groove is formed in the inner side of the supporting frame, a plurality of fixing screws are arranged on the outer wall of the air booster pump body, one end of each fixing screw penetrates through the interior of the inserting groove, and a movable groove penetrating through the inserting groove is formed in the supporting frame. According to the device, the movable shaft is loosened, the positioning frame is driven to be inserted into the position of the inner groove of the fixing screw rod under the action of the elastic force of the spring, the air booster pump body can be conveniently and rapidly fixed at the position of the supporting frame, and clamping and fixing are completed.

Description

Technical Field

[0001] This utility model relates to the field of air booster pump testing technology, specifically an air booster pump testing fixture. Background Technology

[0002] An air booster pump is a device used for vehicle braking. It consists of a cylinder-piston assembly, a push rod, a return spring, a reservoir assembly, and a hydraulic cylinder-push rod-hydraulic piston assembly. During operation, compressed air is introduced into the braking system through the air booster pump's inlet. This compressed air acts on the larger piston in the cylinder, creating thrust. The push rod then moves the smaller hydraulic piston in the hydraulic cylinder. The hydraulic piston transmits the generated hydraulic pressure to the brake caliper, pushing the caliper piston and causing the caliper to grip the brake disc, thus achieving braking. Because the piston in the cylinder has a larger area than the hydraulic piston in the hydraulic cylinder, the lower air pressure in the cylinder generates several times the hydraulic pressure in the hydraulic cylinder, achieving the boosting function. Before leaving the factory, its performance needs to be tested, and a fixture is required to fix its position.

[0003] However, existing air booster pump test fixtures have the following problems during use: traditional fixtures require bolts to be tightened one by one, which takes a long time and requires a lot of labor, resulting in low production and testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an air booster pump test fixture to solve the related problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air booster pump test fixture, comprising a fixing fixture, a support frame, and an air booster pump body. The fixing fixture has an arc-shaped positioning groove on its inner side, and the air booster pump body is disposed above the arc-shaped positioning groove. The support frame is installed at the top of the fixing fixture, and a slot is provided on the inner side of the support frame. Multiple fixing screws are provided on the outer wall of the air booster pump body, and one end of each fixing screw penetrates the interior of the slot. A movable groove penetrating the slot is provided inside the support frame, and an installation mechanism for fixing the position of the fixing screws is provided inside the movable groove.

[0006] This technical solution provides an air booster pump test fixture. The mounting mechanism includes a positioning rod and a positioning frame. The positioning rod is installed inside the movable slot, and the positioning frame is sleeved on the outer wall of the positioning rod, penetrating the side wall of the slot. Multiple toothed blocks are installed on the inner wall of the positioning frame.

[0007] This technical solution provides an air booster pump test fixture, wherein the outer wall of the positioning rod is fitted with a spring, and the two sides of the spring are respectively connected to the inner wall of the positioning frame and the movable groove.

[0008] This technical solution provides an air booster pump test fixture, wherein a movable shaft that penetrates the support frame is installed inside the movable slot via a bearing, and a gear that matches the tooth block is installed on the outer wall of the movable shaft.

[0009] This technical solution provides an air booster pump test fixture, wherein the outer wall of the support frame is coated with a polymer ceramic coating.

[0010] Compared with the prior art, this utility model provides an air booster pump test fixture, which has the following beneficial effects:

[0011] 1. This utility model uses an arc-shaped positioning groove to position the air booster pump body at the fixed clamp. After the operator releases the movable shaft, the positioning frame is inserted into the groove of the fixing screw under the elastic force of the spring, which facilitates the quick fixing of the air booster pump body at the support frame and completes the clamping and fixing.

[0012] 2. This utility model increases strength and service life by spraying wear-resistant coating on the outer wall of the support frame. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0015] Figure 3 For the present utility model Figure 1 A magnified structural diagram at point A;

[0016] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0017] In the diagram: 1. Fixing clamp; 2. Support frame; 3. Arc-shaped positioning groove; 4. Fixing screw; 5. Air booster pump body; 6. Slot; 7. Movable slot; 8. Positioning rod; 9. Spring; 10. Positioning frame; 11. Tooth block; 12. Movable shaft; 13. Gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1, as Figure 1-2As shown, this utility model provides a technical solution: an air booster pump test fixture, including a fixing fixture 1, a support frame 2, and an air booster pump body 5. An arc-shaped positioning groove 3 is formed on the inner side of the fixing fixture 1, and the air booster pump body 5 is positioned above the arc-shaped positioning groove 3. The support frame 2 is mounted on the top of the fixing fixture 1, and a slot 6 is formed on the inner side of the support frame 2. Multiple fixing screws 4 are provided on the outer wall of the air booster pump body 5, and one end of each fixing screw 4 penetrates the interior of the slot 6. A movable groove 7 penetrating the slot 6 is formed inside the support frame 2, and an installation mechanism for fixing the position of the fixing screws 4 is provided inside the movable groove 7. The installation mechanism includes a positioning rod 8 and a positioning frame 10. The positioning rod 8 is positioned inside the movable groove 7, and the outer wall of the positioning rod 8 is fitted with the penetrating slot 6. The positioning frame 10 on the side wall has multiple toothed blocks 11 installed on its inner wall. The outer wall of the positioning rod 8 is fitted with a spring 9, and the two sides of the spring 9 are connected to the inner walls of the positioning frame 10 and the movable groove 7, respectively. The movable groove 7 has a movable shaft 12 that passes through the support frame 2 installed inside through a bearing. The outer wall of the movable shaft 12 is fitted with a gear 13 that matches the toothed blocks 11. The operator rotates the movable shaft 12 to drive the gear 13 to mesh with the toothed blocks 11, so that the positioning frame 10 is moved away from the slot 6. Then, after the fixing screw 4 is inserted into the slot 6, the operator releases the movable shaft 12. Under the elastic force of the spring 9, the positioning frame 10 is driven to insert into the groove of the fixing screw 4, which facilitates the quick fixing of the air booster pump body 5 at the support frame 2, thus completing the quick installation and fixing.

[0020] Example 2, as Figure 1-4 As shown, this utility model provides a technical solution: an air booster pump test fixture, including a support frame 2 whose outer wall is coated with a high-molecular ceramic polymer coating. By spraying a wear-resistant coating on the outer wall of the support frame 2, the strength and service life are increased.

[0021] Working principle: First, the operator can place the air booster pump body 5 above the fixing clamp 1. At this time, the operator can rotate the movable shaft 12 to drive the gear 13 to mesh with the tooth block 11, so that the positioning frame 10 is away from the slot 6. Then, after inserting the fixing screw 4 into the slot 6, the operator releases the movable shaft 12. Under the elastic force of the spring 9, the positioning frame 10 is driven to insert into the groove of the fixing screw 4, which facilitates the quick fixing of the air booster pump body 5 at the support frame 2, completing the quick installation and fixing. The outer wall of the support frame 2 is sprayed with wear-resistant coating to increase strength and service life.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. An air-blast pump test fixture comprising a stationary clamp (1), a support frame (2) and an air-blast pump body (5), characterized in that: The inner side of the fixed clamp (1) is provided with an arc-shaped positioning slot (3), the upper side of the arc-shaped positioning slot (3) is provided with an air force pump body (5), the top end of the fixed clamp (1) is provided with a supporting frame (2), the inner side of the supporting frame (2) is provided with a slot (6), the outer wall of the air force pump body (5) is provided with a plurality of fixed screw rods (4), one end of the fixed screw rod (4) penetrates the inside of the slot (6), the inside of the supporting frame (2) is provided with a movable slot (7) penetrating the slot (6), and the inside of the movable slot (7) is provided with a mounting mechanism for fixing the position of the fixed screw rod (4).

2. An air-augmented pump test fixture according to claim 1, wherein: The mounting mechanism comprises a positioning rod (8) and a positioning frame (10), the inside of the movable slot (7) is provided with the positioning rod (8), the outer wall of the positioning rod (8) is provided with the positioning frame (10) penetrating the side wall of the slot (6), and the inner wall of the positioning frame (10) is provided with a plurality of tooth blocks (11).

3. An air-augmented pump test fixture according to claim 2, wherein: The outer wall of the positioning rod (8) is provided with a spring (9), and the two sides of the spring (9) are connected with the inner walls of the positioning frame (10) and the movable slot (7) respectively.

4. An air-augmented pump test fixture according to claim 2, wherein: The inside of the movable slot (7) is provided with a movable shaft (12) penetrating the supporting frame (2) through a bearing, and the outer wall of the movable shaft (12) is provided with a gear (13) matched with the tooth block (11).

5. An air-augmented pump test fixture as recited in claim 1, wherein: The outer wall of the supporting frame (2) is sprayed with a high polymer ceramic polymer coating.

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