Auxiliary assembly tool for joint of brake hard tube and brake hose

Abstract

The utility model discloses an auxiliary assembly tool for the joint of a brake hard pipe and a brake hose, and belongs to the technical field of automobile installation tools. The device mainly comprises a lower shell, a semicircular opening is formed in one side of the interior of the lower shell, a first bearing limiter is arranged on the other side of the interior of the lower shell, toothed rail limiters are arranged at the two ends of the first bearing limiter, a positioning toothed rail is fixedly connected to the toothed rail limiter on the outer side of the lower shell, and a positioning support is slidably connected to the positioning toothed rail. Two opposite telescopic positioning devices are arranged in a groove, making contact with the positioning support, of the positioning rack rail, and a pressing sliding block is slidably connected between the two telescopic positioning devices. According to the utility model, the positioning bracket is matched with the positioning toothed rail, and then the joint wrench is used for quickly fixing the brake hard tube and the brake hose.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive installation tools, and more specifically, it relates to an auxiliary assembly tool for the connection between brake rigid pipe and brake flexible pipe. Background Technology

[0002] In the assembly of automotive braking systems, the connection between the brake hose and the brake tube is crucial. Currently, the connection and assembly of the brake hose and brake tube largely relies on manual operation. Using tools such as ordinary wrenches and torque wrenches, workers must rely on experience to first align the threaded end of the brake hose with the brake tube connector, then insert it for pre-tightening, and finally tighten the nut with a wrench. This process suffers from low positioning accuracy, lack of torque control, cumbersome operation, and low manual efficiency.

[0003] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary assembly tool for the connection between the brake rigid pipe and the brake hose. The tool uses a positioning bracket and a positioning toothed rail to cooperate and a wrench to quickly fix the brake rigid pipe and the brake hose.

[0005] The aforementioned auxiliary assembly tool for the connection between a brake rigid pipe and a brake flexible hose includes a lower housing. A semi-circular opening is provided on one side of the lower housing, and a bearing limiter is provided on the other side. Gear rail limiters are provided at both ends of the bearing limiter. A positioning gear rail is fixedly connected to the gear rail limiter on the outer side of the lower housing. A positioning bracket is slidably connected on the positioning gear rail. Two opposing telescopic positioning devices are provided in the groove of the positioning bracket in contact with the positioning gear rail. A pressing sliding block is slidably connected between the two telescopic positioning devices.

[0006] The telescopic positioning device includes a toothed plate that contacts the positioning toothed rail. A spring is fixedly connected to the back of the toothed plate. A limit plate is fixedly connected to one end of the spring. The limit plate is "L"-shaped. A single-sided inclined groove is opened at the end of the long side away from the toothed plate. A spring is fixedly connected to the short side. The spring is parallel to the long side of the limit plate. One end of the spring is abutted against the long side of the limit plate of another telescopic positioning device. The single-sided inclined grooves of the two limit plates are aligned. A pressing sliding block is provided on the surface of the single-sided inclined groove and is slidably connected to the positioning bracket. One end of the pressing sliding block abuts against the single-sided inclined groove. Protrusions are provided on both sides of the pressing sliding block. The protrusions abut against the inner bottom plate of the positioning bracket. The other end of the pressing sliding block is slidably connected to the bottom plate of the positioning bracket.

[0007] Preferably, two shaft gears are provided between the bearing limit and the semi-circular opening inside the lower housing. A transmission gear shaft is rotatably connected inside the shaft gear limit, and a transmission gear is rotatably connected in the middle of the transmission gear shaft. A large bearing is fixedly connected inside the bearing limit, and a driving wheel is fixedly connected in the middle of the large bearing. The driving wheel meshes with the transmission gear and is connected to the transmission gear. A driven half gear is meshed with one side of the transmission gear.

[0008] Preferably, the driven half gear has a semi-circular opening with a semi-circular tooth on the outer side and a fixed post fixedly connected to the inner edge. The length direction of the fixed post is consistent with the length direction of the semi-circular tooth. One end of the fixed post has a fixed hole. The outer side of the fixed post has a nested return spring and a slidingly connected connector wrench. One end of the return spring abuts against the driven half gear, and the other end abuts against the connector wrench. A limit plate is fixedly connected to one side of the connector wrench. The limit plate has three threaded holes, and a fixing bolt is threaded into the threaded holes. The fixing bolt is fixedly connected to the fixing hole. The outer edge of the driven half gear on the fixed post is rotatably connected to the semi-circular opening of the lower outer shell. One end of the lower outer shell is fixedly connected to the upper outer shell.

[0009] Preferably, the connector wrench has a protrusion inside on the side near the positioning toothed rail.

[0010] Preferably, one side of the upper outer shell is provided with a semi-circular opening, and a limiting pressure plate is rotatably connected inside the semi-circular opening. The other side is provided with a bearing limiter, which has an opening inside and a large bearing is rotatably connected inside. The large bearing is fixedly connected to one side of the drive wheel in the middle. Two shaft gear limiters are provided between the bearing limiter and the semi-circular opening of the upper outer shell. The shaft gear limiters are rotatably connected to one end of the transmission gear shaft.

[0011] Preferably, there are two large bearings.

[0012] Preferably, the drive wheel has a square opening in the middle.

[0013] Preferably, an electric torque wrench is fixedly connected to one side of the upper housing, and the protruding end of the electric torque wrench passes through the upper housing and is fixedly connected to the square opening of the drive wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention improves assembly precision. Through a torque adjustment device, the tightening degree of the nuts can be precisely controlled, ensuring consistent tightening torque at each connection point. This effectively prevents brake system leakage and component damage, improving the safety and reliability of the brake system. The positioning bracket and positioning toothed rail enable more precise connection between the brake rigid pipe and brake flexible pipe, eliminating the need for deliberate alignment, thus improving assembly efficiency and saving assembly time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the cooperation between the positioning bracket, the positioning toothed rail, and the telescopic positioning device.

[0019] Figure 4 A schematic diagram of the telescopic positioning device;

[0020] Figure 5 A schematic diagram of the structure of the telescopic positioning device and the pressing sliding block;

[0021] Figure 6 This is a schematic diagram of the structure of this utility model after removing the electric torque wrench;

[0022] Figure 7 for Figure 6 A schematic diagram of the structure of part A;

[0023] Figure 8 This is a schematic diagram of the lower outer shell structure;

[0024] Figure 9 This is a schematic diagram of the driven half-gear.

[0025] Figure 10 This is a schematic diagram of the upper outer shell.

[0026] In the diagram: 1. Positioning bracket; 2. Positioning gear rail; 3. Telescopic positioning device; 301. Gear plate; 302. Spring 1; 303. Limiting plate; 304. Spring 2; 305. Single-sided inclined groove; 4. Pressing sliding block; 5. Lower outer shell; 501. Shaft gear limit 1; 502. Gear rail limit; 503. Bearing limit 1; 6. Driving wheel; 7. Driven half gear; 701. Fixing hole; 702. Fixing column; 703. Half ring tooth; 8. Return spring; 9. Large bearing; 10. Transmission gear shaft; 11. Transmission gear; 12. Connecting wrench; 13. Upper outer shell; 1301. Shaft gear limit 2; 1302. Bearing limit 2; 14. Limiting pressure plate; 15. Fixing bolt; 16. Electric torque wrench. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figures 1 to 10 As shown, an auxiliary assembly tool for the connection between a brake rigid pipe and a brake hose is provided to enable rapid installation and docking of the brake rigid pipe and brake hose. It includes a lower outer shell 5, with a semi-circular opening on one side and a bearing limiter 503 on the other side. The bearing limiter 503 has toothed rail limiters 502 at both ends. A positioning toothed rail 2 is fixedly connected to the toothed rail limiters 502 on the outer side of the lower outer shell 5. A positioning bracket 1 is slidably connected to the positioning toothed rail 2. Two opposing telescopic positioning devices 3 are provided in the groove of the positioning bracket 1 where the positioning toothed rail 2 contacts the positioning bracket 1. A pressing sliding block 4 is slidably connected between the two telescopic positioning devices 3.

[0030] like Figure 4 and Figure 5As shown, the telescopic positioning device 3 includes a toothed plate 301 that contacts the positioning toothed rail 2. A spring 302 is fixedly connected to the back of the toothed plate 301. A limiting plate 303 is fixedly connected to one end of the spring 302. The limiting plate 303 is "L"-shaped, with a single-sided inclined groove 305 at the end of its long side away from the toothed plate 301. A spring 304 is fixedly connected to its short side. The spring 304 is parallel to the long side of the limiting plate 303. One end of the spring 304 abuts against the long side of the limiting plate 303 of the other telescopic positioning device 3. The single-sided inclined grooves 305 of the two limiting plates 303 are aligned. A pressing sliding block 4 is provided on the surface of the single-sided inclined groove 305 and is slidably connected to the positioning bracket 1. One end of the pressing sliding block 4 abuts against the single-sided inclined groove 305. Protrusions are provided on both sides of the pressing sliding block 4. The protrusions are aligned with the interior of the positioning bracket 1. The base plates abut against each other, and the other end of the sliding block 4 slides and connects to the bottom base plate of the positioning bracket 1. The advantage of this design is that the positioning bracket 1 can only move unidirectionally on the positioning toothed rail 2, that is, the positioning bracket 1 can only move towards the lower outer shell 5. When the positioning bracket 1 needs to move away from the lower outer shell 5, simply press the sliding block 4, and the two telescopic positioning devices 3 inside the positioning bracket 1 will retract. At this time, pushing the positioning bracket 1 will move it outward. The advantage of this design is that when connecting the brake hard pipe and the brake hose, the distance between the two continuously approaches. If only the connector wrench 12 is moved, there may be a problem of insufficient stroke. If the positioning bracket 1 can move, the distance between the positioning bracket 1 and the connector wrench 12 can also continuously approach, making installation more convenient.

[0031] like Figure 8 As shown, two shaft gear limiters 501 are provided between the bearing limiter 503 and the semi-circular opening inside the lower outer shell 5. A transmission gear shaft 10 is rotatably connected inside the shaft gear limiter 501, and a transmission gear 11 is rotatably connected in the middle of the transmission gear shaft 10. A large bearing 9 is fixedly connected inside the bearing limiter 503, and a driving wheel 6 is fixedly connected in the middle of the large bearing 9. The driving wheel 6 meshes with the transmission gear 11 for transmission. A driven half gear 7 is meshed with one side of the transmission gear 11 for transmission. The driven half gear 7 is driven by the driving wheel 6. The reason for designing two transmission gears 11 is that the driven half gear 7 has an opening. When one transmission gear 11 is not in contact with the driven half gear 7, the other continues to be in contact with the driven half gear 7, driving the driven half gear 7 to rotate.

[0032] like Figure 9As shown, the driven half gear 7 has a semi-circular opening with a semi-circular tooth 703 on its outer side and a fixed post 702 fixedly connected to its inner edge. The length direction of the fixed post 702 is consistent with the length direction of the semi-circular tooth 703. One end of the fixed post 702 has a fixed hole 701. The outer side of the fixed post 702 has a nested return spring 8 and a slidingly connected connector wrench 12. The connector wrench 12 has a protrusion on its inner side near the positioning gear 2. The advantage of this design is that when the connector wrench 12 drives the connector to rotate, the connector will retract inward, causing the connector wrench 12 to disengage from the connector. The protrusion prevents the connector wrench 12 from disengaging from the connector. One end of the return spring 8 abuts against the driven half gear 7, and the other end abuts against the connector wrench 12. The function of the return spring 8 is that when the connector wrench 12 and the connector move inward together, the return spring 8 will compress. When the connector wrench 12 separates from the connector, the connector wrench 12 is supported by the return spring 8 and will return to its initial position for the next fixing operation. A limiting pressure plate 14 is fixedly connected to one side of the connector wrench 12. The limiting pressure plate 14 has three threaded holes, and a fixing bolt 15 is threadedly connected to the threaded holes. The fixing bolt 15 is fixedly connected to the fixing hole 701. The outer edge of the driven half gear 7 of the fixing column is rotatably connected to the semi-circular opening of the lower outer shell 5. The upper outer shell 13 is fixedly connected to one end of the lower outer shell 5.

[0033] like Figure 10 As shown, a semi-circular opening is provided on one side of the upper outer shell 13, and a limiting pressure plate 14 is rotatably connected inside the semi-circular opening. A bearing limiter 1302 is provided on the other side, with an opening inside the bearing limiter 1302. A large bearing 9 is rotatably connected inside the bearing limiter 1302, and the large bearing 9 is fixedly connected to one side of the drive wheel 6. Two shaft gear limiters 1301 are provided between the bearing limiter 1302 and the semi-circular opening of the upper outer shell 13, and the shaft gear limiters 1301 are rotatably connected to one end of the transmission gear shaft 10. The two large bearings 9 primarily enable the drive wheel 6 to rotate more smoothly. A square opening is provided in the middle of the drive wheel 6.

[0034] An electric torque wrench 16 is fixedly connected to one side of the upper housing 13. The protruding end of the electric torque wrench 16 passes through the upper housing and is fixedly connected to the square opening of the drive wheel 6. The electric torque wrench 16 drives the connector wrench 12 to rotate, and performs assembly work on the brake hard pipe and brake hose.

[0035] Working principle: During the assembly process of the brake rigid pipe and the brake hose, this utility model inserts the brake rigid pipe from the side, and the rigid pipe connector engages with the connector wrench 12. Inside, insert the brake hose into the vehicle body bracket, determine the distance between the connector wrench 12 and the positioning bracket 1, press the sliding block 4 inward, the telescopic positioning devices 3 on both sides retract inward, the toothed plate 301 separates from the positioning toothed rail 2, push the positioning bracket 1 to find the appropriate distance, release the pressing sliding block 4, so that the toothed plate 301 re-engages with the positioning toothed rail 2, and then fix the hard pipe connector and the hose connector on the same axis through the positioning bracket 1. Then turn the electric torque wrench 16 forward, and drive the connector wrench 12 to rotate through the drive wheel 6, transmission gear 11, and driven half gear 7. The hard pipe connector begins to assemble with the hose connector. During the assembly process, the hard pipe connector will move towards the hose connector, and the connector wrench 12 will move accordingly through the fixed column 702, compressing the return spring 8. When the torque reaches the set value (21±2N) after tightening, the electric torque wrench 16 stops rotating and saves the actual torque value. Then manually move the auxiliary assembly tool toward the hard pipe end until the connector wrench 12 disengages from the hard pipe connector. The connector wrench 12 returns to its original position under the action of the return spring 8. Press the reset button of the electric torque wrench 16 to reset the opening of the connector wrench 12 to the initial position, remove the auxiliary assembly tool, and the assembly is complete.

[0036] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary assembly tool for the connection between a brake rigid pipe and a brake flexible hose, comprising a lower housing (5), characterized in that: The lower outer shell (5) has a semi-circular opening on one side and a bearing limiter (503) on the other side. The bearing limiter (503) has toothed rail limiters (502) at both ends. The toothed rail limiters (502) on the outer side of the lower outer shell (5) are fixedly connected to a positioning toothed rail (2). A positioning bracket (1) is slidably connected on the positioning toothed rail (2). Two opposing telescopic positioning devices (3) are provided in the groove of the positioning bracket (1) that contacts the positioning toothed rail (2). A pressing sliding block (4) is slidably connected between the two telescopic positioning devices (3). The telescopic positioning device (3) includes a toothed plate (301) that contacts the positioning toothed rail (2). A spring (302) is fixedly connected to the back of the toothed plate (301). A limiting plate (303) is fixedly connected to one end of the spring (302). The limiting plate (303) is "L"-shaped. A single-sided inclined groove (305) is opened at the end of the long side away from the toothed plate (301). A spring (304) is fixedly connected to the short side. The spring (304) is parallel to the long side of the limiting plate (303). One end of the spring (304) is... The long side of the limiting plate (303) of another telescopic positioning device (3) abuts against the limiting plate (303). The single-sided inclined groove (305) of the two limiting plates (303) is aligned. The surface of the single-sided inclined groove (305) is provided with a pressing sliding block (4) that is slidably connected to the positioning bracket (1). One end of the pressing sliding block (4) abuts against the single-sided inclined groove (305). The pressing sliding block (4) is provided with protrusions on both sides. The protrusions abut against the inner bottom plate of the positioning bracket (1). The other end of the pressing sliding block (4) is slidably connected to the bottom bottom plate of the positioning bracket (1).

2. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 1, characterized in that: The lower outer shell (5) has two shaft gear limiters (501) between the bearing limiter (503) and the semi-circular opening. The shaft gear limiter (501) is rotatably connected to the transmission gear shaft (10), and the transmission gear shaft (10) is rotatably connected to the transmission gear (11). The bearing limiter (503) is fixedly connected to the large bearing (9), and the large bearing (9) is fixedly connected to the driving wheel (6). The driving wheel (6) is meshed with the transmission gear (11), and the transmission gear (11) is meshed with a driven half gear (7) on one side.

3. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 2, characterized in that: The driven half gear (7) has a semi-circular opening, with a semi-circular tooth (703) on the outer side and a fixed post (702) fixedly connected to the inner edge. The length direction of the fixed post (702) is consistent with the length direction of the semi-circular tooth (703). One end of the fixed post (702) has a fixed hole (701). The outer side of the fixed post (702) has a nested return spring (8) and a sliding wrench (12). One end of the return spring (8) abuts against the driven half gear (7), and the other end abuts against the wrench (12). One side of the wrench (12) is fixedly connected to a limit plate (14). The limit plate (14) has three threaded holes. The threaded holes are threaded with a fixing bolt (15). The fixing bolt (15) is fixedly connected to the fixing hole (701). The outer edge of the fixed post of the driven half gear (7) is rotatably connected to the semi-circular opening of the lower outer shell (5). One end of the lower outer shell (5) is fixedly connected to the upper outer shell (13).

4. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 3, characterized in that: The connector wrench (12) has a protrusion inside on the side near the positioning toothed rail (2).

5. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 3, characterized in that: The upper outer shell (13) has a semi-circular opening on one side, and a limiting pressure plate (14) is rotatably connected inside the semi-circular opening. The other side has a bearing limiter (1302), which has an opening inside. A large bearing (9) is rotatably connected inside the bearing limiter (1302). The large bearing (9) is fixedly connected to one side of the drive wheel (6) in the middle. Two shaft gear limiters (1301) are provided between the bearing limiter (1302) and the semi-circular opening of the upper outer shell (13). The shaft gear limiters (1301) are rotatably connected to one end of the transmission gear shaft (10).

6. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 5, characterized in that: There are two large bearings (9).

7. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 5, characterized in that: The drive wheel (6) has a square opening in the middle.

8. The auxiliary assembly tool for the connection between the brake rigid pipe and the brake flexible hose according to claim 6, characterized in that: An electric torque wrench (16) is fixedly connected to one side of the upper housing (13). The protruding end of the electric torque wrench (16) passes through the upper housing and is fixedly connected to the square opening of the drive wheel (6).

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