CN219635189U - Double-cavity air cylinder - Google Patents

Abstract

The utility model provides a double-cavity air cylinder which comprises two main shells and an inner cavity cylinder arranged in the main shells, wherein the inner cavity cylinder is connected with the inner wall of the main shells through a first reinforcing mechanism; the two main shells are welded and connected; the two inner cavity cylinders are communicated with each other to form an inner cavity; an outer cavity is formed between the inner cavity and the inner walls of the two main shells. The utility model has good effect.

Description

Double-cavity air cylinder

Technical Field

The utility model belongs to the technical field of braking of diesel motor vehicles, and particularly relates to a double-cavity air cylinder.

Background

In recent years, along with the transformation of national economic structures and the promotion of new emission standards, various large automobile manufacturers face larger product upgrading pressures, wherein the main upgrading trend of commercial truck products is light weight, the light weight has larger promotion effects on the aspects of automobile safety, high-efficiency transportation, energy conservation, emission reduction and the like, and the light weight is the requirement for the overall quality and input cost of the automobile on the premise of ensuring the comprehensive performance indexes of the automobile such as strength, safety, reliability and the like, so that the weight of each part can be reduced to the greatest extent. The dead weight of the automobile is lightened, so that the oil consumption can be greatly reduced, the emission of harmful substances is reduced, and the comprehensive oil consumption of the automobile can be controlled within a new emission standard by matching with a post-treatment system.

The air storage cylinder is an important energy storage component in the automobile braking, whistling and other systems, can store air pressed by the air compressor and release air flow with higher energy when the air storage cylinder is required to be used, so that the working requirements of the braking, whistling and other systems are met.

As shown in fig. 1, the conventional air cylinder is generally in a three-section form of a middle shell and end shells at two ends of the middle shell, the end shells and the middle shell are connected through welding ribs, and after welding, the inside of the whole air cylinder is divided into: the inside of middle casing is big chamber and the inside of end casing is the little chamber, and this kind of gas receiver can cause big, little chamber to divide about, and big chamber is the same with the bearing capacity in little chamber both ends, but the strengthening rib (welding muscle) in the middle is not connected together, causes the whole bearing strength of gas receiver low.

Therefore, a dual-chamber air cylinder is needed to solve the above technical problems.

Disclosure of Invention

In view of the above problems, the present utility model provides a dual-chamber air cylinder comprising two main housings and an inner chamber cylinder provided inside the main housings, wherein,

the inner cavity cylinder is connected with the inner wall of the main shell through a first reinforcing mechanism;

the two main shells are welded and connected; the two inner cavity cylinders are communicated with each other to form an inner cavity;

an outer cavity is formed between the inner cavity and the inner walls of the two main shells.

Further, the first reinforcing mechanism comprises a plurality of reinforcing ribs, wherein,

the plurality of reinforcing ribs are uniformly welded on the outer wall of the inner cavity cylinder and are welded with the inner wall of the main shell.

Further, the two main shells are welded together in the form of:

one end face of one main shell is welded to one end face of the other main shell.

Further, one end face of the inner cavity cylinder is flush with one end face of the main shell, and the other end face of the inner cavity cylinder is integrally formed with the other end face of the main shell.

Further, the air cylinder further comprises two end covers, wherein the two end covers are welded on the two main shells respectively.

Further, the two end caps are welded to the two main shells respectively in the form of:

one end cover is welded on the end face of the other end of one main shell, and the other end cover is welded on the end face of the other end of the other main shell.

Further, the end cover comprises a cover body and a cover top, wherein the cover body is cylindrical, and the cover top and the cover body are integrally formed;

the inside of end cover is equipped with second strengthening mechanism for promote the intensity of end cover.

Further, the second reinforcing mechanism comprises a sealing member and a plurality of uniformly distributed reinforcing structures, wherein,

one end of the sealing element is connected to the inner wall of the cover top;

the reinforcing structure is connected with the circumferential inner surface of the cover body and the circumferential outer surface of the sealing element.

Further, the reinforcing structure comprises first Y-shaped reinforcing ribs, the branch end part of each first Y-shaped reinforcing rib is uniformly and integrally formed with a second Y-shaped reinforcing rib, wherein,

the main support end of the first Y-shaped reinforcing rib is connected with the circumferential outer surface of the sealing piece, and the branch end of the first Y-shaped reinforcing rib is connected with the circumferential inner surface of the cover body.

Further, the tops of the first Y-shaped reinforcing ribs and the second Y-shaped reinforcing ribs are connected with the inner wall of the cover top.

The utility model has the beneficial effects that:

divide into four casings with the gas receiver, two big casings (main casing), two little casings (end cover), through corresponding welded connection, divide into inside and outside two cavitys with whole gas receiver (the inner chamber of inside can be used for satisfying parking braking gas storage, and outside outer cavity can be used for satisfying service braking gas storage), when improving intensity, satisfy the double-chamber requirement.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, a brief description will be given below of the drawings required for the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic diagram of a gas cylinder according to the prior art.

Fig. 2 shows a schematic structural diagram of an air reservoir according to an embodiment of the utility model.

Fig. 3 shows a schematic partial section of the air reservoir according to fig. 2.

Fig. 4 shows a simple exploded view of the air reservoir according to fig. 2.

Fig. 5 shows a schematic view of the internal structure of an end cap according to an embodiment of the present utility model.

Fig. 6 shows a schematic diagram of the structure according to fig. 2 at a.

Fig. 7 shows a second alternative construction of a gas cylinder structure according to an embodiment of the utility model.

Fig. 8 shows a schematic structural view of two inner cavity barrels locked by three nuts of an intermediate lock according to an embodiment of the present utility model.

Fig. 9 shows a third alternative construction of a gas cylinder structure according to an embodiment of the utility model.

Fig. 10 shows a schematic structural diagram according to B in fig. 9.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 2 to 8, the present utility model provides a dual-chamber air cylinder comprising two main housings 1 and an inner chamber cylinder 2 provided inside the main housings 1, wherein,

the inner cavity cylinder 2 is connected with the inner wall of the main shell 1 through a first reinforcing mechanism 3;

as shown in fig. 2, two of the main cases 1 are welded, and in the present utility model, after welding, the two main cases 1 are joined together by an intermediate weld bead (i.e., a reinforcing bead, described later) in the two sets of first reinforcing mechanisms 3.

As shown in fig. 3, the two inner chambers 2 are mutually communicated to form an inner chamber 21 (i.e., a small chamber), and an outer chamber 22 (i.e., a large chamber, the diameter of which is relatively smaller and the strength of which is improved) is formed between the inner chambers and the inner walls of the two main housings 1. The inner reinforcing mechanisms (namely, the inner reinforcing mechanisms are arranged on each inner cavity cylinder 2) are welded together between the two inner cavities on the inner side to form independent cavities, so that the large and small cavities are divided into inner and outer parts, and the integral bearing strength of the air storage cylinder can be enhanced.

The overall structure of the present utility model will be described in detail.

In some embodiments of the utility model, the air reservoir further comprises two end caps 4, wherein the two end caps 4 are welded to the two main housings 1, respectively, wherein:

in this embodiment, the two main housings 1 are welded together in the form of:

one end face of one main casing 1 is welded to one end face of the other main casing 1.

The two end caps 4 are welded to the two main housings 1 respectively in the form of:

one end cover 4 is welded to the other end face of one main casing 1, and the other end cover 4 is welded to the other end face of the other main casing 1.

In some embodiments of the present utility model, the first reinforcement mechanism 3 includes a plurality of reinforcement ribs 31, wherein the plurality of reinforcement ribs 31 are uniformly welded to the outer wall of the inner cavity tube 2 and welded to the inner wall of the main housing 1.

In some embodiments of the present utility model, in the form of the above welding, the welding between one main casing 1 and the other main casing 1 may be performed by a fusion welding method, and the fusion welding method includes, but is not limited to, a fusion welding method such as vibration friction welding, hot plate welding, infrared welding, beam welding, hot gas welding, and laser welding. In the above welding form, the welding between the main casing 1 and the end cover 4 may be performed by a welding method including, but not limited to, vibration friction welding, infrared welding, laser welding, and the like.

In some embodiments of the present utility model, as shown in fig. 4, an end surface of the inner cavity cylinder 2 is flush with an end surface of the main housing 1, and the other end surface of the inner cavity cylinder 2 is integrally formed with the other end surface of the main housing 1.

In some embodiments of the present utility model, as shown in fig. 5, the end cap 4 includes a cap body 41 and a cap top 42, the cap body 41 is cylindrical, and the cap top 42 is integrally formed with the cap body 41; the second reinforcement mechanism 43 is disposed inside the end cap 4 for improving the strength of the end cap 4.

In some embodiments of the present utility model, since the two main housings 1 are connected by welding, and the two end caps 4 are respectively connected to the two main housings 1 by welding, after which the weak points of the air reservoir are located at the end caps, the end caps are designed in the form of a double Y-shaped rib structure (described later), over which the stress of the side wall of the cover 41 (i.e., the circumferential inner surface of the cover 41) of the end cap 4 is conducted.

The strength of the end cap can be improved by referring to fig. 5, the second reinforcing mechanism 43 includes a sealing member 431 and a plurality (for example, 9 sets in fig. 5, but it should be understood that the number of reinforcing structures in the present utility model is not limited to 9 sets) of uniformly distributed reinforcing structures (i.e., the above double Y-type rib structure),

in some embodiments of the present utility model, the specific structural form for the reinforcing structure is as follows:

the reinforcing structure comprises first Y-shaped reinforcing ribs 432, and the branch end part of each first Y-shaped reinforcing rib 432 is integrally formed with a second Y-shaped reinforcing rib 433, wherein,

the main end of the first Y-shaped reinforcing rib 432 is connected to the circumferential outer surface of the sealing member 431, and the branch end of the second reinforcing rib 31 is connected to the circumferential inner surface of the cover 41.

The top parts of the first Y-shaped reinforcing ribs 432 and the second Y-shaped reinforcing ribs 433 are connected with the inner wall of the cap top 42.

In some embodiments of the utility model, the reinforcement structure also has a single Y-shaped reinforcement structure as shown in fig. 4 and 6, for which there is no second Y-shaped reinforcement rib 433 in the reinforcement structure shown in fig. 5.

In addition, whether the reinforcing structure shown in fig. 5 or 6, the seal 431 is attached (by way of example, by way of a hot plug or fusion connection, etc.) to the inner wall of the cap top 42; the reinforcing structure is welded to the circumferential inner surface of the cover 41 and the circumferential outer surface of the seal 431.

Because the air pressure in the air reservoir is greatly higher than the normal atmospheric pressure under normal conditions, the requirement on the structural strength of the air reservoir is also high, the air reservoir is light, the main stream method at present is to replace the traditional steel material with plastic materials, but the plastic materials are influenced by the physicochemical properties of the air reservoir, so that the structural strength of the plastic air reservoir produced by most factories cannot meet the normal use requirement, or the production cost is too high, the mass production cannot be realized, and therefore, the plastic air reservoir used by automobiles can be rarely seen in the market, and therefore, in one embodiment of the utility model, the two main shells 1, the two end covers 4, the inner cavity cylinder 2, the first reinforcing mechanism 3 and the second reinforcing mechanism 43 are all made of engineering plastic materials, and the materials have good toughness and tensile strength, can effectively resist the internal pressure of the whole air reservoir 1, and greatly delay the aging of the air reservoir 1.

In addition, in some embodiments of the utility model, there are several variations of the structure of the air reservoir:

1. first transformation of the air reservoir structure: as shown in fig. 4 (only schematically in fig. 4, in which the nut mounting seat 11 in fig. 4 is downward in use), in order to allow water to be discharged more smoothly, in fig. 4, the nut mounting seats (the nut mounting seats 11 are provided on the outer surface of each main housing 1, and illustratively, 2 nut mounting seats 11 are provided on the outer surface of each main housing 1) are placed in two states, namely, a state in which two nut mounting seats 11 on the left side in fig. 4 are lower than two nut mounting seats 11 on the right side in fig. 4, so that the air cylinder is in an inclined state after being mounted, water can smoothly flow from one side to the water discharge valve 12 (wherein the first water discharge valve 12 is provided on one main housing 1 and the second water discharge valve 13 is provided on the other main housing 1, and the first water discharge valve 12 is communicated with the outer cavity, and the water in the outer cavity can be discharged through the first water discharge valve 12 and the second water discharge valve 13 in the inner cavity).

2. Second type of air reservoir structure: as shown in fig. 7, there is a nut interlocking structure, that is, the middle two inner cavity cylinders 2 are locked by three nuts and three bolts through the middle lock shown in fig. 8, so that the bearing capacity of the product can be improved.

That is, in the second modification, as shown in fig. 8, one end surface of the inner tube 2 is closed, but a communication hole 23 is formed in the center of one end surface of the inner tube 2, a bolt hole 24 is formed in one end surface of the inner tube 2, and the two inner tubes 2 are connected to each other by nuts and bolts through the bolt hole 24, and the two inner tubes 2 are communicated with each other through the communication hole 23.

3. Third transformation of the air reservoir structure: as shown in fig. 9, after the welding of the two main cases 1 in the middle, the storage compressed water in the main case 1 is not easily discharged. As shown in fig. 10, in addition to the first modification of the air receiver structure, a water drain structure may be added, that is, a water drain hole 26 (the water drain hole 26 is formed in the inner ring 32) is added to the welding surface (the welding surface between the inner rings 32) to drain water, so that the water that is blocked (that is, the water blocked by the inner ring 32) may pass through, and finally, may be drained through the second water drain valve 13.

In a third variation, the inner reinforcement mechanism includes an inner ring 32, an outer surface of the inner ring 32 is welded to an inner surface of the inner cavity tube 2, and a plurality of reinforcement ribs 33 are further disposed on the inner ring 32. By welding the two inner rings 32 in the two inner cylinders 2, the two inner cylinders 2 can be welded to each other.

In summary, the air cylinder of the utility model has the following advantages:

1. divide into four casings, two big casings (main casing 1), two little casings (end cover 4), through corresponding welded connection, divide into inside and outside two cavitys (inside inner chamber is used for satisfying parking braking gas storage, and outside outer cavity is used for satisfying service braking gas storage) with whole gas receiver, when improving intensity, satisfy the double-chamber requirement.

2. The air cylinder is simple to manufacture, and the requirement can be met only by developing a large die (the large die is used for producing the main shell 1) and a small die (the small die is used for producing the end cover 4).

3. The middle uses the nut to interlock, can strengthen the bearing capacity of the product.

4. And a water discharging structure is additionally arranged to discharge the air compression condensed water into the cylinder.

5. The reinforcing structure inside the end cover is of a double-Y structure, and the side surface of the end cover is lifted to obtain breaking force.

The present utility model is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present utility model can be made by those skilled in the art without departing from the scope of the present utility model.

Claims (10)

1. A double-cavity air cylinder is characterized by comprising two main shells (1) and an inner cavity cylinder (2) arranged in the main shells (1), wherein,

the inner cavity cylinder (2) is connected with the inner wall of the main shell (1) through a first reinforcing mechanism (3);

the two main shells (1) are welded; the two inner cavity cylinders (2) are mutually communicated to form an inner cavity (21);

an outer cavity (22) is formed between the inner cavity (21) and the inner walls of the two main shells (1).

2. A dual chamber air reservoir according to claim 1, wherein the first stiffening means (3) comprises a plurality of stiffening ribs (31), wherein,

the plurality of reinforcing ribs (31) are uniformly welded on the outer wall of the inner cavity cylinder (2) and are welded with the inner wall of the main shell (1).

3. A dual chamber air reservoir according to claim 1, wherein the two main housings (1) are welded together in the form of:

one end face of one main shell (1) is welded to one end face of the other main shell (1).

4. The dual-cavity air cylinder according to claim 1, wherein one end face of the inner cavity cylinder (2) is flush with one end face of the main housing (1), and the other end face of the inner cavity cylinder (2) is integrally formed with the other end face of the main housing (1).

5. A dual chamber gas cylinder according to claim 1, further comprising two end caps (4), wherein both end caps (4) are welded to both main housings (1), respectively.

6. A dual chamber air reservoir according to claim 5, wherein the two end caps (4) are welded to the two main housings (1) respectively in the form of:

one end cover (4) is welded on the other end face of one main shell (1), and the other end cover (4) is welded on the other end face of the other main shell (1).

7. The dual-chamber air cylinder according to claim 5 or 6, wherein the end cover (4) comprises a cover body (41) and a cover top (42), the cover body (41) is cylindrical, and the cover top (42) and the cover body (41) are integrally formed;

the inside of end cover (4) is equipped with second strengthening mechanism (43) for promote the intensity of end cover (4).

8. The dual chamber air reservoir of claim 7, wherein the second reinforcement means (43) comprises a seal (431) and a plurality of evenly distributed reinforcement structures, wherein,

one end of the sealing element (431) is connected to the inner wall of the cover top (42);

the reinforcement structure is connected to the circumferential inner surface of the cover (41) and the circumferential outer surface of the seal (431).

9. The dual chamber cylinder of claim 8 wherein the reinforcement structure comprises first Y-shaped ribs (432), each of the first Y-shaped ribs (432) having a branching end integrally formed with a second Y-shaped rib (433), wherein,

the main end part of the first Y-shaped reinforcing rib (432) is connected with the circumferential outer surface of the sealing piece (431), and the branch end part of the first Y-shaped reinforcing rib (432) is connected with the circumferential inner surface of the cover body (41).

10. The dual chamber cylinder of claim 9, wherein the top of each of the first Y-shaped stiffener (432) and the second Y-shaped stiffener (433) is connected to the inner wall of the cover top (42).