Air inlet device of locomotive air dryer

Abstract

The utility model relates to the technical field of locomotive air drying, and discloses a locomotive air dryer air inlet device which comprises a drying device, an air inlet pipe is fixedly connected to the outer side of the drying device, the lower end of the drying device is fixedly connected with an exhaust port, and a fixing mechanism is arranged in the air inlet pipe. And a stabilizing mechanism is arranged in the air inlet pipe. According to the air inlet device of the locomotive air dryer, the fixing mechanism is arranged, the sealing ring is movably installed in the groove, when the connecting pipe is inserted into the air inlet pipe and passes through the sealing ring, the inner ring is extruded by the connecting pipe to move towards one side of the outer ring, and the telescopic spring connected with the inner ring is pressed by the inner ring; according to the air inlet pipe, the sealing ring is extruded, an outer ring on the sealing ring can be better fixedly installed in the groove, meanwhile, the sealing ring is fixed in the groove under the pressure of the telescopic spring, the sealing ring is better fixed, and the air tightness of the interior of the air inlet pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive air dryers, in particular to an air intake device for a locomotive air dryer. Background Art

[0002] After the locomotive has been in use for a period of time, the air intake device of the locomotive air dryer in the prior art will easily bring water and impurities into the short-stroke cylinder to varying degrees as the compressed air entering the dryer contains certain liquid water and impurities as the piston rod of the short-stroke cylinder reciprocates, causing the short-stroke cylinder to become inflexible or stuck, affecting the safe operation of the locomotive and increasing the maintenance time and cost of the dryer. It is particularly important to maintain the air tightness of the air intake device to prevent impurities from damaging the machine parts.

[0003] According to a disclosed locomotive air dryer air intake device (publication number: CN 208229619 U), the protective structure added in the above application is simple and practical, which avoids the short-stroke cylinder piston (extended) rod from being immersed in water and impurities. The air intake device further adds a dustproof seal for the piston (extended) rod on the basis of the original similar air intake device.

[0004] However, during the actual use of the above-mentioned equipment, in order to ensure the air tightness of the air inlet end, a sealing ring is generally installed at the air inlet. When the air inlet encounters an environment with a lot of water and impurities, the air tightness of the ordinary sealing ring is poor due to long-term immersion in water or the influence of fine impurities on the gap of the sealing ring, which affects the overall air tightness of the locomotive dryer air inlet. In view of this, we propose an air intake device for a locomotive air dryer. Utility Model Content

[0005] The purpose of the utility model is to provide an air intake device for a locomotive air dryer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air intake device for a locomotive air dryer, comprising a drying device, the outer side of the drying device is fixedly connected to an air intake pipe, the lower end of the drying device is fixedly connected to an exhaust port, a fixing mechanism is arranged inside the air intake pipe, a stabilizing mechanism is arranged inside the air intake pipe, and the fixing mechanism comprises:

[0007] A sealing ring is movably installed on the inner wall of the intake pipe, a connecting ring is fixedly connected to the surface of the sealing ring, the surface of the connecting ring is fixedly connected to the outer ring, one end of a telescopic spring is fixedly installed on the inner wall of the sealing ring, and the other end of the telescopic spring is fixedly connected to the inner ring.

[0008] Preferably, the stabilizing mechanism comprises a round bar, the inner wall of the inner ring is provided with a movable groove, one end of a reset spring is fixedly mounted on the inner wall of the movable groove, the other end of the reset spring is fixedly mounted on the round bar, and a wavy belt is fixedly mounted on the surface of the round bar.

[0009] Preferably, there are several telescopic springs, which are fixedly mounted on the inner wall of the sealing ring in a circular array, so that the sealing ring can be more evenly stressed and the air tightness of the sealing ring can be ensured.

[0010] Preferably, the inner wall of the sealing ring is provided with an annular protrusion, the inner ring is shaped like an arc bowl, and one end of the opening with a small diameter of the inner ring is fixedly mounted on the surface of the annular protrusion of the sealing ring.

[0011] Preferably, the cross section of the outer ring is semicircular, and the cross section of the groove is matched with the outer ring, the connecting ring and the sealing ring, so that the sealing ring can be better sealed inside the groove.

[0012] Preferably, the connection ring is fixedly installed at the center of the outer width of the sealing ring, and the width of the connection ring is smaller than the diameter of the outer ring, so that the outer ring is easily installed inside the groove.

[0013] Compared with the prior art, the utility model provides a locomotive air dryer air intake device, which has the following beneficial effects:

[0014] 1. The air intake device of the locomotive air dryer is provided with a fixing mechanism to movably install the sealing ring inside the groove. When the connecting pipe is inserted into the intake pipe and the connecting pipe passes through the sealing ring, the inner ring is squeezed by the connecting pipe so that the inner ring moves toward the outer ring. The telescopic spring connected to the inner ring is pressed by the inner ring, thereby squeezing the sealing ring, so that the outer ring on the sealing ring can be better fixedly installed inside the groove. At the same time, the sealing ring is fixed inside the groove by the pressure of the telescopic spring, which better fixes the sealing ring and improves the air tightness inside the intake pipe.

[0015] 2. The air intake device of the locomotive air dryer is provided with a stabilizing mechanism, and a round bar and a return spring are provided on the inner wall of the inner ring, so that the sealing ring can better fit the outer wall of the connecting pipe. When the connecting pipe shakes, the round bar moves with the connecting pipe, and the return spring stretches and contracts accordingly, so that the round bar can better fit the surface of the connecting pipe. At the same time, the wavy band provided on the round bar increases the friction between the round bar and the connecting pipe, thereby improving the air tightness between the sealing ring and the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2This is a cross-sectional schematic diagram of the structural connecting pipe of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the structural sealing ring of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the inner ring of the structure of the utility model.

[0020] In the figure: 1. Drying device; 2. Air inlet pipe; 3. Fixing mechanism; 301. Groove; 302. Sealing ring; 303. Inner ring; 304. Outer ring; 305. Telescopic spring; 306. Connecting ring; 4. Stabilizing mechanism; 401. Round bar; 402. Corrugated belt; 403. Reset spring; 404. Movable groove; 5. Discharge outlet. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: an air intake device for a locomotive air dryer, comprising a drying device 1, the outer side of the drying device 1 is fixedly connected to an air intake pipe 2, the lower end of the drying device 1 is fixedly connected to an exhaust port 5, so as to discharge waste after the dry air, and at the same time, an exhaust port is arranged on the surface of the drying device 1, a fixing mechanism 3 is arranged inside the air intake pipe 2, a stabilizing mechanism 4 is arranged inside the air intake pipe 2, and the fixing mechanism 3 comprises a groove 301, a sealing ring 302, an inner ring 303, an outer ring 304, a telescopic spring 305, and a connecting ring 306.

[0022] In one embodiment of the utility model, a sealing ring 302 is movably installed on the inner wall of the intake pipe 2, the curvature of the sealing ring 302 is adapted to the curvature of the intake pipe 2, and the center of the sealing ring 302 does not affect the movement of the connecting pipe inside the intake pipe 2, and the surface of the sealing ring 302 is fixedly connected with a connecting ring 306, and the position of the connecting ring 306 is fixedly installed at the center of the outer width of the sealing ring 302, and the width of the connecting ring 306 is smaller than the diameter of the outer ring 304. The surface of the connecting ring 306 is fixedly connected to the outer ring 304, and the cross-section of the outer ring 304 is semicircular. The cross-section of the groove 301 is The surface shape is compatible with the outer ring 304, the connecting ring 306, and the sealing ring 302. One end of the telescopic spring 305 is fixedly installed on the inner wall of the sealing ring 302, and the other end of the telescopic spring 305 is fixedly connected to the inner ring 303. There are several telescopic springs 305, and several telescopic springs 305 are fixedly installed on the inner wall of the sealing ring 302 in a circular array. When the inner ring 303 is squeezed inward by the connecting pipe installation, the inner ring 303 can be evenly squeezed toward the inner wall of the sealing ring 302 through the telescopic spring 305, so that the sealing ring 302 can better fit the groove 301.

[0023] In addition, the stabilizing mechanism 4 includes a round bar 401, and an inner wall of the inner ring 303 is provided with a movable groove 404. The width of the movable groove 404 is adapted to the width of the round bar 401, so that the round bar 401 can be shaken in a small range inside the movable groove 404, so that the round bar 401 can move along the surface of the connecting pipe in a small range, thereby improving the stability of the sealing ring 302. One end of the return spring 403 is fixedly installed on the inner wall of the movable groove 404, and the other end of the return spring 403 is fixedly installed on the round bar 401. The number of the return springs 403 is set to be several, and the several return springs 403 are circular. The circumferential array is fixedly connected to the two ends of the round bar 401, so that the round bar 401 can better fit the connecting pipe for a small range of movement. The surface of the round bar 401 is fixedly installed with the wave belt 402. The inner wall of the sealing ring 302 is provided with a circular ring-shaped protrusion. The shape of the inner ring 303 is an arc-shaped bowl. One end of the small diameter opening of the inner ring 303 is fixedly installed on the surface of the circular ring-shaped protrusion of the sealing ring 302. The small diameter opening of the inner ring 303 is close to the opening of the intake pipe 2, which is convenient for the connecting pipe to enter the intake pipe 2 to squeeze the inner ring 303, so that the sealing ring 302 is better fixed on the inner wall of the groove 301.

[0024] In the present invention, when in use, the sealing ring 302 is movably installed in the groove 301. When the connecting pipe is inserted into the air intake pipe 2 and the connecting pipe passes through the sealing ring 302, the inner ring 303 is squeezed by the connecting pipe so that the inner ring 303 moves toward the outer ring 304. The telescopic spring 305 connected to the inner ring 303 is pressed by the inner ring 303, thereby squeezing the sealing ring 302, so that the outer ring 304 on the sealing ring 302 can be better fixedly installed in the groove 301. At the same time, the sealing ring 302 is fixed in the groove 301 by the pressure of the telescopic spring 305. The inner wall of the inner ring 303 is provided with a round bar 401 and a return spring 403, so that the sealing ring 302 can better fit the outer wall of the connecting pipe. When the connecting pipe shakes, the round bar 401 moves with the connecting pipe, and the return spring 403 stretches and contracts accordingly, so that the round bar 401 can better fit the surface of the connecting pipe. At the same time, the wavy band 402 arranged on the round bar 401 increases the friction between the round bar 401 and the connecting pipe, thereby improving the air tightness between the sealing ring 302 and the connecting pipe. The connecting pipe is then fixed to the opening of the intake pipe 2 by bolts.

[0025] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An air intake device for a locomotive air dryer, comprising a drying device (1), the outer side of the drying device (1) being fixedly connected to an air intake pipe (2), and the lower end of the drying device (1) being fixedly connected to an exhaust port (5), characterized in that: A fixing mechanism (3) is arranged inside the air intake pipe (2), and a stabilizing mechanism (4) is arranged inside the air intake pipe (2), wherein the fixing mechanism (3) comprises: A sealing ring (302) is movably mounted on the inner wall of the air intake pipe (2); a connecting ring (306) is fixedly connected to the surface of the sealing ring (302); the surface of the connecting ring (306) is fixedly connected to the outer ring (304); one end of a telescopic spring (305) is fixedly mounted on the inner wall of the sealing ring (302); the other end of the telescopic spring (305) is fixedly connected to the inner ring (303).

2. The air intake device for a locomotive air dryer according to claim 1, characterized in that: The stabilizing mechanism (4) comprises a round bar (401), the inner wall of the inner ring (303) is provided with a movable groove (404), one end of a return spring (403) is fixedly mounted on the inner wall of the movable groove (404), the other end of the return spring (403) is fixedly mounted on the round bar (401), and the surface of the round bar (401) is fixedly mounted with a corrugated belt (402).

3. The air intake device for a locomotive air dryer according to claim 1, characterized in that: There are a plurality of telescopic springs (305), and the plurality of telescopic springs (305) are fixedly mounted on the inner wall of the sealing ring (302) in a circular array.

4. The air intake device for a locomotive air dryer according to claim 1, characterized in that: The inner wall of the sealing ring (302) is provided with an annular protrusion, the inner ring (303) is shaped like an arc-shaped bowl, and the small-diameter opening end of the inner ring (303) is fixedly mounted on the surface of the annular protrusion of the sealing ring (302).

5. The air intake device for a locomotive air dryer according to claim 1, characterized in that: The cross section of the outer ring (304) is in the shape of a semicircular arc, and the cross section of the groove (301) is compatible with the outer ring (304), the connecting ring (306), and the sealing ring (302).

6. The air intake device for a locomotive air dryer according to claim 1, characterized in that: The connection ring (306) is fixedly installed at the center of the outer width of the sealing ring (302), and the width of the connection ring (306) is smaller than the diameter of the outer ring (304).

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