Master cylinder oil pot opening sealing tool

Abstract

The utility model relates to the technical field of sealing detection, and discloses a main cylinder oil pot opening sealing tool which comprises a sealing mechanism and a locking mechanism. The sealing mechanism is provided with a sealing head, and an air connecting opening is formed in the center of the sealing head and used for extending into a main cylinder oil pot opening to form sealing with the inner wall. The locking mechanism is composed of two semicircular locking parts, is arranged on the outer wall of the sealing head and the outer wall of the oil pot opening of the main cylinder in a sleeving mode and is used for fixing and locking the sealing head and the oil pot opening of the main cylinder. The two semicircular locking parts are of an opening and closing structure, one ends are connected through a hinge, and the other ends are connected through a locking buckle. An arc-shaped groove is formed in the inner side of the locking part and matched with the outer wall of the oil pot opening of the main cylinder and the sealing head. An air pipe connecting assembly is arranged at the air connecting opening of the sealing head and used for ventilation or sealing for sealing detection. The locking buckle comprises a locking block and a locking pin, and the locking pin conducts secondary locking on the sealing head. The sealing tool is suitable for a main cylinder oil pot opening without threads and bayonets, effective sealing and fixing are achieved, and performance detection is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sealing detection technology, specifically to a sealing fixture for the oil reservoir opening of a main cylinder. Background Technology

[0002] In existing automotive manufacturing and industrial production, the master cylinder reservoir, as a crucial component of the hydraulic system, is vital for the system's proper operation due to its sealing performance. However, traditional master cylinder reservoir designs often include threads or bayonet joints to facilitate sealing and inspection using standard filling ports. Nevertheless, with continuous technological advancements and the diversification of industrial designs, a new type of master cylinder reservoir design has emerged, devoid of both threads and bayonet joints, posing significant challenges to sealing and inspection.

[0003] Specifically, this threadless and slotless design of the main cylinder oil reservoir opening makes it impossible for traditional sealing fixtures to effectively fix and seal the oil reservoir opening. When performing performance tests such as product idle stroke, main cylinder positive pressure, and negative pressure on the production line, the inability of the sealing fixture to be stably fixed to the oil reservoir opening results in ineffective sealing and ventilation of the oil reservoir opening during the testing process, thus affecting the accuracy and efficiency of the tests.

[0004] Furthermore, because existing industry-standard oil can opening sealing fixtures are incompatible with this new threadless, bayonet-less oil can opening design, it is also impossible to achieve the function of continuous automatic detection of empty stroke, positive pressure, and negative pressure of the main cylinder at three stations. This not only increases the complexity and cost of the production line but also reduces production efficiency.

[0005] In conclusion, with the continuous development of industrial manufacturing technology, sealing and fixing the oil reservoir inlet of the main cylinder with a special structure has become an urgent problem to be solved. Utility Model Content

[0006] The purpose of this invention is to provide a sealing fixture for the oil reservoir opening of a main cylinder. Through the design of the sealing and locking mechanisms, this fixture effectively seals and secures the threadless, slotless oil reservoir opening. Simultaneously, it supports the production line's continuous automatic detection of the main cylinder's idle stroke, positive pressure, and negative pressure. This fixture improves the accuracy and efficiency of detection while reducing the complexity and cost of the production line.

[0007] To solve the above-mentioned technical problems, this utility model provides a sealing fixture for the main cylinder oil reservoir opening, comprising:

[0008] A sealing mechanism includes a sealing head with an air inlet at its center. The sealing head extends into the oil reservoir opening of the main cylinder and forms a seal with the inner wall of the oil reservoir opening.

[0009] The locking mechanism includes two semi-circular locking parts, which are sleeved on the outer walls of the sealing head and the main cylinder oil reservoir, and are used to fix the sealing head and the main cylinder oil reservoir and lock them.

[0010] In addition to the above-mentioned technical features, this application also makes improvements in the following aspects:

[0011] In some embodiments, the sealing head includes a first sealing portion and a second sealing portion, with an annular groove in the circumferential direction of the second sealing portion, and a sealing ring disposed at the annular groove, the sealing ring being fitted onto the annular groove of the second sealing portion.

[0012] In some embodiments, the two semi-circular locking parts are configured as an openable structure, with one end connected by a hinge and the other end connected by a locking buckle. The two semi-circular locking parts are locked together by the locking buckle to form an openable and closable annular locking collar structure.

[0013] In some embodiments, the inner sides of the two semi-circular locking portions are provided with arc-shaped grooves, which match the outer wall of the main cylinder oil reservoir and the first sealing portion of the sealing head. When sealing, the edges of the main cylinder oil reservoir and the first sealing portion of the sealing head are embedded in the arc-shaped grooves.

[0014] In some embodiments, the air inlet of the sealing head is provided with an air pipe connection assembly, which is used to connect the air pipe for air supply when measuring the master cylinder's idle stroke, and to close the air inlet for sealing detection when detecting the positive and negative pressure of the master cylinder.

[0015] In some embodiments, the tracheal connection assembly is configured as a detachable tracheal connector.

[0016] In some embodiments, the locking buckle includes a locking block and a locking pin that cooperates with the locking block, wherein the locking block is disposed at the engaging end of one of the two semi-circular locking portions.

[0017] In some embodiments, one end of the locking block is hinged to the snap-fit ​​end of the locking part, and the other end of the locking block is provided with a locking groove adapted to the locking pin.

[0018] In some embodiments, the locking pin is disposed at the opening and closing end of another locking part, and the locking pin passes through the locking part and abuts against the sealing head to perform secondary locking of the sealing head.

[0019] By adopting the above technical solution, this utility model has at least one of the following beneficial effects:

[0020] 1. Achieve a threadless and bayonet-free seal and fixation for the oil reservoir opening:

[0021] This fixture uses a sealing head in its sealing mechanism to extend into the oil reservoir opening, forming a tight seal through the compression deformation of the sealing ring against the inner wall of the reservoir. Simultaneously, a locking mechanism securely tightens and locks the sealing head to the outer wall of the oil reservoir opening via two semi-circular locking parts, thus achieving effective sealing and fixation of threadless, slotless oil reservoir openings. This design solves the problem of traditional sealing fixtures being incompatible with such oil reservoir openings.

[0022] 2. Ensure gas flow and perform seal testing:

[0023] The sealing head has a central air inlet and is equipped with an air pipe connection assembly. When measuring the master cylinder's idle stroke, air can be supplied via the air pipe connection assembly; conversely, when testing the master cylinder's positive and negative pressure, the air inlet can be sealed for a sealing test. This design ensures both gas flow and sealing during testing, meeting the requirements for master cylinder performance testing.

[0024] 3. Improve the efficiency of automated production lines:

[0025] The design of this tooling allows for both ventilation and sealing during the main cylinder inspection on the automated production line, ensuring that the three major performance parameters of the main cylinder can be completed in one go on the automated production line. This achieves automated production, improves production efficiency, and reduces the labor intensity of workers.

[0026] 4. Enhance the adaptability and flexibility of tooling:

[0027] The two semi-circular locking parts of the locking mechanism are designed to open and close, and are connected by hinges and locking buckles to form an openable and closable annular locking collar structure. This design allows the tooling to adapt to oil can openings of different sizes and shapes, enhancing the tooling's adaptability and flexibility.

[0028] 5. Achieve secondary locking to improve sealing reliability:

[0029] The locking block and locking pin in the locking buckle are designed to lock the sealing head in a secondary manner. This design further improves the reliability of the seal and ensures that the sealing of the oil reservoir opening is not affected by external factors during the testing process.

[0030] In summary, the main cylinder oil reservoir sealing fixture provided by this utility model, through optimized structural design, achieves effective sealing and fixation of the threadless and bayonet-less main cylinder oil reservoir, ensuring gas flow and sealing during testing, improving the efficiency of automated production lines, enhancing the adaptability and flexibility of the fixture, and achieving secondary locking to improve sealing reliability. Furthermore, the fixture is easy to maintain and replace, providing strong support for main cylinder performance testing in industrial manufacturing. Attached Figure Description

[0031] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0032] Figure 1 This is a schematic diagram of the overall structure of the main cylinder oil reservoir sealing fixture of this utility model;

[0033] Figure 2 This is a schematic diagram highlighting the bottom fit of the sealing tooling of this utility model;

[0034] Figure 3 for Figure 1 A longitudinal sectional view;

[0035] Figure 4 A schematic diagram of the combined structure of two semi-circular locking parts;

[0036] Figure 5 This is a schematic diagram of the mating structure of the sealing head and the locking buckle;

[0037] Figure 6 This is a schematic diagram of the combined structure of the present invention and the main cylinder oil reservoir.

[0038] Figure 7 for Figure 6 A partial sectional view.

[0039] The numbers in the diagram are as follows:

[0040] 1. Sealing mechanism; 11. Sealing head; 111. First sealing part; 112. Second sealing part; 113. Annular groove; 114. Sealing ring; 12. Air inlet; 13. Air pipe connection assembly; 2. Locking mechanism; 21. Locking part; 211. Arc-shaped groove; 22. Hinge; 23. Locking buckle; 231. Locking block; 232. Locking pin; 233. Locking groove. Detailed Implementation

[0041] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention may be implemented in other different forms and is not limited to the embodiments described herein.

[0042] It should be noted that those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments without conflict. Unless otherwise defined, the technical or scientific terms involved in this invention should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0043] The terms "a," "an," "a kind," "the," and similar words used in this utility model do not indicate quantity limitation and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," "third," etc. used in this utility model are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0044] With advancements in automotive manufacturing and industrial production technologies, a novel threadless and slotless master cylinder oil reservoir design has emerged. This design renders traditional sealing fixtures ineffective in securing and sealing the oil reservoir. During performance tests such as no-load, positive pressure, and negative pressure measurements on the production line, the sealing fixtures cannot stably connect to the oil reservoir, affecting the accuracy and efficiency of the tests. Furthermore, existing industry-standard sealing fixtures are incompatible with this new design, hindering continuous automatic testing and increasing production line complexity and cost, while reducing production efficiency. Therefore, there is an urgent need to solve the sealing and securing problem of the specially structured master cylinder oil reservoir.

[0045] Based on the above problems, this utility model proposes a sealing fixture for the oil reservoir opening of the main cylinder. The technical solution, working principle and technical effect of this utility model are described in detail below with reference to specific embodiments.

[0046] Example 1

[0047] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model describes a sealing fixture for the oil reservoir opening of a main cylinder, which mainly consists of a sealing mechanism 1 and a locking mechanism 2.

[0048] The core component of the sealing mechanism is the sealing head 11. This sealing head is designed to extend into the oil reservoir opening of the main cylinder, and its shape matches the inner wall of the oil reservoir opening, thereby forming an effective seal.

[0049] like Figure 2 , Figure 5 At the center of the sealing head 11, there is an air inlet 12. This inlet will be used to connect the air pipe in subsequent operations, such as measuring the master cylinder's free stroke or detecting the master cylinder's positive and negative pressure.

[0050] Furthermore, the sealing head 11 is further subdivided into a first sealing portion 111 and a second sealing portion 112.

[0051] A ring groove 113 is provided around the second sealing part 112, and a sealing ring 114 is installed in this groove.

[0052] In this embodiment, an O-ring is used as the sealing ring. The function of the O-ring is to further enhance the sealing effect and ensure that the oil reservoir opening remains sealed under high or low pressure environments.

[0053] In order to improve the sealing effect of the sealing mechanism 1, a locking mechanism 2 is provided in conjunction with the sealing mechanism 1.

[0054] like Figure 1 , Figure 4 As shown, the locking mechanism 2 consists of two semi-circular locking parts 21. These two locking parts can be fitted onto the outer wall of the sealing head 11 and the main cylinder oil reservoir, serving to fix and lock them.

[0055] For ease of operation, the two semi-circular locking parts 21 are designed with an opening and closing structure. One end of them is connected together by a hinge 22, while the other end is locked by a locking buckle 23.

[0056] When locking is required, simply engage the locking buckle 23 to form a complete annular locking collar structure, which securely fixes the sealing head 11 and the main cylinder oil reservoir opening together.

[0057] As an optimization, to further improve the sealing effect of the sealing mechanism, an arc-shaped groove 211 is provided on the inner side of the two facing semi-circular locking parts 21. This groove is designed to match the outer wall of the main cylinder oil reservoir and the first sealing part 111 of the sealing head 11.

[0058] During sealing, the edges of the main cylinder oil reservoir and the first sealing part 111 are embedded into the arc-shaped groove 211, thereby further enhancing the sealing effect and stability.

[0059] To facilitate connection of the air hose, an air hose connection assembly 13 is provided at the air inlet 12 of the sealing head 11. This assembly can be used to connect the air hose for ventilation when measuring the master cylinder's free stroke; and when detecting the positive and negative pressure of the master cylinder, it can close the air inlet 12 for sealing testing. For ease of operation and maintenance, this air hose connection assembly 13 is designed to be detachable.

[0060] Furthermore, to improve the locking effect, such as Figure 1 , Figure 5 As shown, in this embodiment, the locking buckle 23 is designed to consist of a locking block 231 and a locking pin 232 that cooperates with the locking block.

[0061] The locking block 231 is installed on the engaging end of one of the locking parts 21, and one end of it is hinged to the locking part 21. At the other end of the locking block 231, a locking groove 233 is provided that is adapted to the locking pin 232.

[0062] The locking pin 232 is installed at the opening and closing end of another locking part 21.

[0063] When the locking buckle 23 is engaged, the locking pin 232 passes through the locking part 21 and abuts against the sealing head 11, thereby providing a secondary lock to the sealing head 11. This design not only enhances the locking effect but also improves the convenience and safety of operation.

[0064] In summary, this main cylinder oil reservoir sealing fixture, through its unique sealing and locking mechanism design, achieves effective sealing and secure fixation of the main cylinder oil reservoir. It enables both ventilation and sealing during main cylinder testing on automated production lines, ensuring continuous automatic testing of the three key performance parameters: no-load stroke, positive pressure, and negative pressure. This allows for one-pass completion of the entire airtightness test on the automated production line, significantly improving the efficiency of the testing process.

[0065] like Figure 6 , Figure 7 As shown, in order to more clearly illustrate the technical solution of the present invention, the method of using a sealing fixture for the main cylinder oil reservoir opening of this application is described as follows, specifically including the following steps:

[0066] I. Preparation Stage

[0067] 1. Inspect tooling components: Ensure that the sealing mechanism (including sealing head, air inlet, air pipe connection assembly, etc.) and locking mechanism (including two semi-circular locking parts, hinges, locking buckles, etc.) are intact.

[0068] 2. Check that the sealing ring (such as an O-ring) is installed correctly and is undamaged.

[0069] 3. Prepare the trachea: Prepare a suitable trachea according to the measurement or testing requirements, and ensure that the trachea connection components are compatible with it.

[0070] II. Installation of Sealing Mechanism

[0071] 1. Insert the sealing head: Insert the sealing head into the oil reservoir opening of the main cylinder, ensuring that its shape matches the inner wall of the oil reservoir opening.

[0072] 2. Connect the air hose: If you need to measure the master cylinder's free stroke or detect the master cylinder's positive and negative pressure, connect the air hose to the air inlet of the sealing head through the air hose connection assembly.

[0073] III. Locking Mechanism Operation

[0074] 1. Open the locking parts: Open the two semi-circular locking parts through the hinges so that they can be fitted onto the outer wall of the sealing head and the main cylinder oil reservoir.

[0075] 2. Install the locking part: Install the opened locking part onto the sealing head and the oil reservoir opening, ensuring that the arc-shaped groove matches the outer wall of the main cylinder oil reservoir opening and the first sealing part of the sealing head.

[0076] 3. Locking the locking buckle: Align the locking block of the locking buckle with the locking pin, and then engage the locking buckle. Ensure that the locking pin passes through the locking part and abuts against the sealing head to achieve secondary locking.

[0077] IV. Conducting measurements or tests

[0078] 1. Measure the master cylinder free stroke: Flow air into the sealing head through the air pipe connection assembly and measure the master cylinder free stroke according to the relevant measurement procedures.

[0079] 2. Check the positive and negative pressure of the master cylinder: If it is necessary to check the positive and negative pressure of the master cylinder, the air inlet can be closed (if necessary), and then the relevant testing steps can be followed.

[0080] V. Disassembly and Placement

[0081] 1. Disassemble the locking mechanism: Open the locking buckle and remove the two semi-circular locking parts from the sealing head and the oil can opening.

[0082] 2. Disassemble the sealing mechanism: Remove the sealing head from the oil reservoir of the main cylinder. If necessary, disconnect the air pipe connection at the same time.

[0083] 3. Storage and Placement: Place the disassembled sealing heads, locking parts, and other components into storage boxes for later use.

[0084] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0085] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A sealing fixture for the oil reservoir opening of a main cylinder, characterized in that, include: The sealing mechanism (1) includes a sealing head (11), and the center of the sealing head (11) is provided with an air inlet (12). The sealing head (11) extends into the oil reservoir of the main cylinder and forms a seal with the inner wall of the oil reservoir of the main cylinder. The locking mechanism (2) includes two semi-circular locking parts (21), which are sleeved on the outer wall of the sealing head (11) and the main cylinder oil reservoir, and are used to fix the sealing head (11) and the main cylinder oil reservoir and lock them.

2. The sealing fixture for the main cylinder oil reservoir opening according to claim 1, characterized in that, The sealing head (11) includes a first sealing part (111) and a second sealing part (112). An annular groove (113) is opened in the circumferential direction of the second sealing part (112), and a sealing ring (114) is provided at the annular groove (113). The sealing ring (114) is sleeved on the annular groove (113) of the second sealing part (112).

3. The sealing fixture for the main cylinder oil reservoir according to claim 1, characterized in that, The two semi-circular locking parts (21) are configured as an openable structure. One end is connected by a hinge (22), and the other end is connected by a locking buckle (23). The two semi-circular locking parts (21) are locked together by the locking buckle (23) to form an openable and closable annular locking collar structure.

4. The sealing fixture for the main cylinder oil reservoir according to claim 1 or 2, characterized in that, The two semi-circular locking parts (21) are provided with arc-shaped grooves (211) on their inner sides facing each other. The arc-shaped grooves (211) match the outer wall of the main cylinder oil reservoir and the first sealing part (111) of the sealing head (11). When sealing, the edges of the main cylinder oil reservoir and the first sealing part (111) are embedded in the arc-shaped grooves (211).

5. The sealing fixture for the main cylinder oil reservoir according to claim 1 or 3, characterized in that, The sealing head (11) is provided with an air pipe connection assembly (13) at the air inlet (12), which is used to connect the air pipe for air supply when measuring the master cylinder's idle stroke, and to close the air inlet (12) for sealing test when detecting the positive and negative pressure of the master cylinder.

6. The sealing fixture for the main cylinder oil reservoir according to claim 5, characterized in that, The tracheal connection assembly (13) is configured as a detachable tracheal connector.

7. The sealing fixture for the main cylinder oil reservoir according to claim 3, characterized in that, The locking buckle (23) includes a locking block (231) and a locking pin (232) that cooperates with the locking block (231). The locking block (231) is located at the snap-fit ​​end of one of the two semi-circular locking parts (21).

8. The sealing fixture for the main cylinder oil reservoir according to claim 7, characterized in that, One end of the locking block (231) is hinged to the engaging end of the locking part (21), and the other end of the locking block (231) is provided with a locking groove (233) that is compatible with the locking pin (232).

9. The sealing fixture for the main cylinder oil reservoir according to claim 8, characterized in that, The locking pin (232) is located at the opening and closing end of another locking part (21). The locking pin (232) passes through the locking part (21) and abuts against the sealing head (11) to perform secondary locking on the sealing head (11).

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