Auxiliary cavity structure of double-cavity air spring

Abstract

The utility model provides an auxiliary cavity structure of a double-cavity air spring, which comprises an auxiliary cavity body barrel, an auxiliary cavity lower cover, an auxiliary cavity upper cover and a control valve mounting component which are integrally formed through an extrusion casting process. The situations of welding seam cracking and air leakage possibly occurring in the long-time running process of the automobile are avoided, and the situation that materials overflowing from welding damage the bag skin or interfere with other parts is also avoided; moreover, the control valve mounting assembly comprises a control valve upper mounting part and a control valve lower mounting part, and a control valve is arranged between the control valve upper mounting part and the control valve lower mounting part, so that the volume switching of the main chamber and the auxiliary chamber can be realized on the premise of adopting an extrusion casting process; and more choices are provided for a user to select an auxiliary cavity structure of the double-cavity air spring.

Description

Technical Field

[0001] The utility model relates to the technical field of turbocharging, in particular to a sub-cavity structure of a double-cavity empty spring. Background Art

[0002] Vehicles have varying requirements for air spring stiffness under different road conditions and loads. One factor influencing air spring stiffness is the spring's internal volume; a larger internal volume results in a smaller stiffness. Dual-chamber air springs can adjust stiffness to suit different road conditions by switching between single and dual chamber volumes.

[0003] The internal chamber of the dual-chamber air spring is divided into a main chamber and a sub-chamber. The volume is switched between the sum of the volumes of the main and sub-chambers and the volume of only the main chamber by opening and closing the control valve. In order to realize the volume switching function, the sub-chamber structure is usually realized by an upper structure and a lower structure, and is mainly realized by metal welding or plastic welding of the upper structure and the lower structure.

[0004] However, when using metal welding or plastic welding processes, the welding strength and air tightness requirements are high, and the welds may crack and leak during long-term operation of the car. In addition, the material overflowing during the welding process may form burrs or sharp objects may fall and damage the bladder, and the overflowing material may also interfere with other parts. Utility Model Content

[0005] The problem to be solved by the present invention is to provide a sub-chamber structure of a double-chamber empty spring which can realize the volume switching function under the premise of avoiding cracking and leakage of welds, avoiding material overflowed from welding to damage the bag skin or interference with other parts, so as to provide users with more choices when selecting the sub-chamber structure of the double-chamber empty spring.

[0006] The technical solution adopted by the present invention to solve the above problems is: a sub-cavity structure of a double-cavity empty spring, comprising:

[0007] a chambered barrel;

[0008] A secondary chamber lower cover, wherein the secondary chamber lower cover is arranged at the lower part of the secondary chamber body;

[0009] A secondary chamber upper cover, wherein the secondary chamber upper cover is arranged on the upper part of the secondary chamber body; and

[0010] A control valve mounting assembly; wherein the sub-chamber body, sub-chamber lower cover, sub-chamber upper cover and control valve mounting assembly are configured to be integrally formed through an extrusion casting process, and a sub-chamber is formed inside; the control valve mounting assembly includes a control valve upper mounting portion formed downward from the sub-chamber upper cover and a control valve lower mounting portion formed upward from the sub-chamber lower cover; a control valve is provided between the control valve upper mounting portion and the control valve lower mounting portion to adjust the internal volume of the main chamber and the sub-chamber.

[0011] Compared with the prior art, the utility model is configured to be integrally formed by an extrusion casting process by comprising a sub-chamber body, a sub-chamber lower cover, a sub-chamber upper cover and a control valve mounting assembly. Compared with welding the upper structure and the lower structure, this avoids possible weld cracking and air leakage during long-term operation of the vehicle, and also avoids the material overflowed from welding damaging the bladder or interfering with other parts; and the control valve mounting assembly includes a control valve upper mounting part and a control valve lower mounting part, and a control valve is provided between the control valve upper mounting part and the control valve lower mounting part, so that under the premise of adopting the extrusion casting process, the volume switching of the main chamber and the sub-chamber can also be realized, providing users with more choices when selecting a sub-chamber structure with a double-cavity empty spring.

[0012] The utility model provides a sub-chamber structure with a double-chamber empty spring, wherein the sub-chamber body includes a main chamber air path assembly arranged on one side; the main chamber air path assembly includes an air path pipeline arranged to extend from the sub-chamber lower cover to the sub-chamber upper cover and an air nozzle mounting portion arranged above the sub-chamber upper cover.

[0013] The utility model provides a sub-chamber structure of a double-chamber empty spring, wherein the air path pipeline is provided with a main chamber air path, and the air nozzle mounting portion is provided with an air nozzle mounting space; the main chamber obtains air supply through the main chamber air path and the air nozzle mounted in the air nozzle mounting space.

[0014] The utility model provides a sub-chamber structure with a double-chamber empty spring, wherein the control valve mounting assembly includes at least one guide rib; the guide rib is arranged between the outer wall of the mounting portion on the control valve and the inner wall of the sub-chamber body.

[0015] The utility model provides a sub-chamber structure of a double-chamber empty spring, wherein the guide rib is arranged between the outer wall of the mounting portion on the control valve and the main chamber air path component.

[0016] The utility model provides a sub-chamber structure of a double-chamber empty spring, wherein the upper mounting portion of the control valve comprises a conical section and a cylindrical section arranged below the conical section; the cylindrical section matches the side surface of the control valve.

[0017] The utility model provides a sub-chamber structure of a double-chamber empty spring, wherein the lower mounting portion of the control valve includes a bearing plate for matching the bottom surface of the control valve and a side clamping portion arranged on the bearing plate and for matching the lower portion of the control valve.

[0018] The utility model provides a sub-chamber structure of a double-chamber empty spring, wherein the height of the side clamping portion is set to be smaller than the air outlet at the lower part of the control valve; the supporting plate has a through hole; the gas in the main chamber enters the lower part of the control valve through the through hole, and then enters the sub-chamber through the air outlet at the lower part of the control valve.

[0019] The utility model provides a sub-cavity structure of a double-cavity empty spring, wherein the sub-cavity upper cover comprises at least one hanging portion arranged on the upper end surface and a burr arranged along the circumference of the sub-cavity body.

[0020] The utility model provides a sub-chamber structure of a double-chamber hollow spring, wherein the sub-chamber body further includes a tooth pattern arranged on the lower outer wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of the utility model from a side view perspective;

[0023] Figure 3 It is an enlarged schematic diagram of the local structure of the mounting part of the control valve;

[0024] Figure 4 It is an enlarged schematic diagram of the local structure of the lower mounting part of the control valve;

[0025] Figure 5 It is a cross-sectional schematic diagram of the present invention when viewed from above;

[0026] Figure 6 It is a top view schematic diagram of the utility model;

[0027] Figure 7 This is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0028] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and variations thereof herein is intended to cover the items and their equivalents set forth below, as well as additional items. Unless otherwise specified or limited, the terms "mount", "connect", "support" and "couple" and variations thereof are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings.

[0029] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0030] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

[0031] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0032] See also Figure 1-7The sub-chamber structure of a double-chamber empty spring shown in the figure includes a sub-chamber body 1, a sub-chamber lower cover 2, a sub-chamber upper cover 3 and a control valve mounting assembly 4; wherein the sub-chamber lower cover 2 is arranged at the lower part of the sub-chamber body 1; wherein the sub-chamber upper cover 3 is arranged at the upper part of the sub-chamber body 1; wherein the sub-chamber body 1, the sub-chamber lower cover 2, the sub-chamber upper cover 3 and the control valve mounting assembly 4 are arranged to be integrally formed by an extrusion casting process, and a sub-chamber is formed inside; the control valve mounting assembly 4 includes a control valve upper mounting part 41 formed downward from the sub-chamber upper cover 3 and a control valve lower mounting part 42 formed upward from the sub-chamber lower cover 2; a control valve is provided between the control valve upper mounting part 41 and the control valve lower mounting part 42 to adjust the internal volume of the main chamber and the sub-chamber.

[0033] In actual use, the utility model is configured to be integrally formed by an extrusion casting process, consisting of a sub-chamber body 1, a sub-chamber lower cover 2, a sub-chamber upper cover 3 and a control valve mounting assembly 4. Compared with welding the upper structure and the lower structure, this avoids possible weld cracking and air leakage during long-term operation of the car, and also avoids the material overflowed from welding from damaging the bladder or interfering with other parts; and the control valve mounting assembly 4 includes a control valve upper mounting portion 41 and a control valve lower mounting portion 42, and a control valve is provided between the control valve upper mounting portion 41 and the control valve lower mounting portion 42, so that under the premise of adopting the extrusion casting process, the volume switching of the main chamber and the sub-chamber can also be realized, providing users with more choices when selecting a sub-chamber structure with a double-cavity air spring.

[0034] Please continue reading Figure 2 、 Figure 5 , wherein the sub-chamber body 1 includes a main chamber air path assembly 11 arranged on one side; the main chamber air path assembly 11 includes an air path pipe 111 arranged to extend from the sub-chamber lower cover 2 to the sub-chamber upper cover 3 and an air nozzle mounting portion 112 arranged above the sub-chamber upper cover 3.

[0035] Furthermore, the air path pipeline 111 has a main chamber air path 1111 , and the air nozzle installation portion 112 has an air nozzle installation space 1121 ; the main chamber obtains air supply through the main chamber air path 1111 and the air nozzle installed in the air nozzle installation space 1121 .

[0036] Please continue reading Figure 7 When in use, a gas nozzle connector is installed in the gas nozzle installation space 1121, and the gas nozzle connector can be used to connect to an external gas supply device, such as a compressed air bottle; when the main chamber needs to be supplemented with gas, the external gas supply device inflates the main chamber through the main chamber gas path 1111.

[0037] Please continue reading Figure 2 、 Figure 5, wherein the control valve mounting assembly 4 includes at least one guide rib 43; the guide rib 43 is arranged between the outer wall of the control valve upper mounting portion 41 and the inner wall of the sub-chamber body 1; the arrangement of the guide rib 43 is conducive to increasing the stability of the control valve upper mounting portion 41, reducing the probability of damage to the control valve upper mounting portion 41 during long-term driving of the car and when subjected to a large impact, and the guide rib 43 is conducive to increasing the structural strength of the product of the extrusion casting process.

[0038] Please see further Figure 5 In some embodiments, the guide rib 43 is arranged between the outer wall of the control valve upper mounting portion 41 and the main chamber air path assembly 11; under this arrangement, the control valve upper mounting portion 41 and the main chamber air path assembly 11 are connected, thereby increasing the structural strength of both, thereby reducing the probability of damage to both at the same time through a guide rib 43.

[0039] Please continue reading Figure 2 、 Figure 3 , wherein the control valve upper mounting portion 41 includes a conical section 411 and a cylindrical section 412 arranged below the conical section 411; the cylindrical section 412 cooperates with the side surface of the control valve.

[0040] Please continue reading Figure 7 When in use, a clamping ring and a dustproof pad are installed on the upper end of the control valve, wherein the clamping ring is arranged at the intersection of the conical section 411 and the cylindrical section 412, so that the clamping ring is supported by the cylindrical section 412 to prevent it from falling, and the control valve is fixed to the mounting portion 41 of the control valve through the clamping ring; the dustproof pad is arranged on the upper end face of the control valve, and the side face of the dustproof pad is interference fit with the outer side face of the conical section 411 to prevent external mud and water from contacting the control valve; the cylindrical section 412 cooperates with the side face of the control valve to increase the sealing of the sub-chamber; further, at least one sealing ring is provided between the cylindrical section 412 and the side face of the control valve to further enhance the sealing of the sub-chamber.

[0041] Please continue reading Figure 2 、 Figure 4 , wherein the control valve lower mounting portion 42 includes a carrier plate 421 for matching the bottom surface of the control valve and a side clamping portion 422 provided on the carrier plate 421 and for matching the lower part of the control valve.

[0042] Please continue reading Figure 7Furthermore, the height of the side clamping portion 422 is set to be smaller than the air outlet at the lower part of the control valve; the carrier plate 421 has a through hole 4211; the gas in the main chamber enters the lower part of the control valve through the through hole 4211, and then enters the sub-chamber through the air outlet at the lower part of the control valve. Since the height of the side clamping portion 422 is relatively small, it will not hinder the air outlet at the lower part of the control valve, so that the control valve can control the volume switching between the main chamber and the sub-chamber.

[0043] Please continue reading Figure 1 、 Figure 6 、 Figure 7 , wherein the sub-chamber upper cover 3 further includes at least one hoisting portion 31 arranged on the upper end surface and a burr 32 arranged along the circumference of the sub-chamber body 1; specifically, the setting of the hoisting portion 31 can facilitate the hoisting of the air spring when it is connected to other structures of the vehicle body, so that there is a stable fulcrum during the hoisting process, avoiding the air spring from falling and being damaged during the hoisting process; the setting of the burr 32 facilitates the installation of the protective layer of the air spring, and the protective layer can cover other structures of the sub-chamber and the main chamber after being picked out by the burr 32.

[0044] Please continue reading Figure 2 、 Figure 7 , wherein the sub-chamber body 1 further includes a tooth pattern 12 arranged on the lower outer wall; specifically, the tooth pattern 12 is used to be tightly connected with the bladder skin of the main chamber to form a main chamber with better sealing performance, and finally realize a dual-chamber air spring that can directly switch the volume between the main chamber and the sub-chamber.

[0045] The above description is merely a description of the preferred embodiment of the present invention and should not be construed as limiting the claims. The present invention is not limited to the above embodiment, and variations in its specific structure are permitted. All variations within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A sub-chamber structure of a double-chamber hollow spring, characterized in that: include: A chambered barrel (1); a secondary chamber lower cover (2), wherein the secondary chamber lower cover (2) is arranged at the lower part of the secondary chamber body (1); a secondary chamber upper cover (3), wherein the secondary chamber upper cover (3) is arranged on the upper part of the secondary chamber body (1); and A control valve mounting assembly (4); wherein the sub-chamber body (1), the sub-chamber lower cover (2), the sub-chamber upper cover (3) and the control valve mounting assembly (4) are configured to be integrally formed by an extrusion casting process, and a sub-chamber is formed therein; the control valve mounting assembly (4) comprises a control valve upper mounting portion (41) formed downward from the sub-chamber upper cover (3) and a control valve lower mounting portion (42) formed upward from the sub-chamber lower cover (2); a control valve is provided between the control valve upper mounting portion (41) and the control valve lower mounting portion (42) to adjust the internal volume of the main chamber and the sub-chamber.

2. The sub-cavity structure of the double-cavity hollow spring according to claim 1, characterized in that: The sub-chamber body (1) includes a main chamber air circuit assembly (11) arranged on one side; the main chamber air circuit assembly (11) includes an air circuit pipe (111) arranged to extend from the sub-chamber lower cover (2) to the sub-chamber upper cover (3) and an air nozzle mounting portion (112) arranged above the sub-chamber upper cover (3).

3. The sub-cavity structure of the double-cavity hollow spring according to claim 2, characterized in that: The air path pipeline (111) has a main chamber air path (1111), and the air nozzle installation portion (112) has an air nozzle installation space (1121); the main chamber obtains air supply through the main chamber air path (1111) and the air nozzle installed in the air nozzle installation space (1121).

4. The sub-cavity structure of the double-cavity hollow spring according to claim 2 or 3, characterized in that: The control valve mounting assembly (4) comprises at least one guide rib (43); the guide rib (43) is arranged between the outer wall of the control valve upper mounting portion (41) and the inner wall of the secondary chamber body (1).

5. The sub-cavity structure of the double-cavity hollow spring according to claim 4, characterized in that: The guide rib (43) is arranged between the outer wall of the control valve upper mounting portion (41) and the main chamber air path component (11).

6. The sub-chamber structure of the double-chamber hollow spring according to claim 1, characterized in that: The control valve upper mounting portion (41) comprises a conical section (411) and a cylindrical section (412) arranged below the conical section (411); the cylindrical section (412) matches the side surface of the control valve.

7. The sub-chamber structure of the double-chamber hollow spring according to claim 1, characterized in that: The control valve lower mounting portion (42) comprises a carrier plate (421) for matching the bottom surface of the control valve and a side clamping portion (422) provided on the carrier plate (421) and for matching the lower portion of the control valve.

8. The sub-chamber structure of the double-chamber hollow spring according to claim 7, characterized in that: The height of the side clamping portion (422) is set to be smaller than the air outlet at the lower part of the control valve; the supporting plate (421) has a through hole (4211); the gas in the main chamber enters the lower part of the control valve through the through hole (4211), and then enters the sub-chamber through the air outlet at the lower part of the control valve.

9. The sub-chamber structure of the double-chamber hollow spring according to claim 1, characterized in that: The sub-chamber upper cover (3) further comprises at least one hanging portion (31) arranged on the upper end surface and a burr (32) arranged along the circumference of the sub-chamber body (1).

10. The sub-chamber structure of the double-chamber hollow spring according to claim 1, characterized in that: The secondary chamber barrel (1) further comprises a tooth pattern (12) provided on the lower outer wall.

Images