Self-centering floating plugging mechanism

Abstract

The application relates to a self-centering floating sealing mechanism belonging to the technical field of engine assembly. The mechanism comprises a sealing mechanism, a self-centering floating mechanism and a base plate, the self-centering floating mechanism is floatingly installed at the front end of the base plate, and the sealing mechanism is installed at the front end of the self-centering floating mechanism; the self-centering floating mechanism comprises an outer sleeve, a deviation rectifying spring, a centering steel ball, a centering spring, an end cover, a guide rod, a floating connecting shaft and a power spring, two guide rods are symmetrically installed at the two ends of the end cover and are floatingly connected with the base plate, one end of the floating connecting shaft is fixed on the base plate, the other end is floatingly installed on the end cover, the power spring is arranged outside the floating connecting shaft, the centering spring is arranged in an inner groove of the shaft, the centering steel ball is arranged between the outer sleeve and the floating connecting shaft, and the deviation rectifying spring is arranged outside the floating connecting shaft and acts between the connecting shaft boss and the outer sleeve. The mechanism increases the reliability of sealing, realizes the stability of sealing pressure, improves the precision of sealing positioning, and saves labor.

Description

Technical Field

[0001] This utility model relates to a self-centering floating sealing mechanism, and particularly to the technology of automatic sealing leakage testing system. Background Technology

[0002] In modern industrial manufacturing, sealing mechanisms are used to seal pipes or orifices that require testing. Testing the sealing performance of these pipes and orifices is a crucial step in ensuring product reliability. From fuel lines in aerospace to oil circuits in automotive engines, from precision valves in medical devices to the microporous structures of semiconductor chips, sealing performance directly affects the safe operation and lifespan of equipment. Automated sealing is challenging, while traditional manual sealing is inconsistent in its effectiveness, labor-intensive, and prone to inaccurate positioning of orifices with angles or inclinations, resulting in incomplete seals. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a self-centering floating sealing mechanism, which seals the pipes or holes to be sealed, especially holes with a certain angle or inclination, and the sealing effect is particularly significant.

[0004] The technical solution adopted in this utility model is as follows: A self-centering floating sealing mechanism includes a sealing mechanism, a self-centering floating mechanism, and a base plate. The self-centering floating mechanism is floatingly installed at the front end of the base plate, and the sealing mechanism is installed at the front end of the self-centering floating mechanism. The self-centering floating mechanism includes an outer sleeve, a correction spring, a centering steel ball, a centering spring, an end cap, guide rods, a floating connecting shaft, and an assist spring. Two guide rods are symmetrically installed at both ends of the end cap and are floatingly connected to the base plate. One end of the floating connecting shaft is fixedly installed on the base plate, and the other end is floatingly installed inside the end cap and the outer sleeve. A centering steel ball is provided between the floating connecting shaft and the outer sleeve. The assist spring is provided on the outer periphery of the floating connecting shaft, with one end acting on the base plate and the other end provided on the end cap. A connecting shaft boss is provided at the floating connection between the floating connecting shaft and the end cover. An inner groove is provided inside the floating connecting shaft, and a centering spring is provided inside the inner groove. The end extending out of the inner groove acts on the centering steel ball. The correction spring is located on the outside of the floating connecting shaft, with one end acting on the connecting shaft boss and the other end acting on the inner wall of the outer sleeve.

[0005] The sealing mechanism includes a quick-connect connector, a sealing plug, and a pin. The quick-connect connector is installed at the front end of the self-centering floating mechanism and is locked by the pin. The sealing plug is interference-fitted with the quick-connect connector.

[0006] The quick-connector is inserted into the outer sleeve connecting section and connected by a pin.

[0007] The centering steel ball acts on the arc-shaped end face inside the outer sleeve.

[0008] The outer circumferential surface of the connecting shaft boss of the floating connecting shaft interacts with the inner ring of the end cap.

[0009] The sealing mechanism includes a quick-connect fitting, a sealing plug, and a pin. The quick-connect fitting is installed at the front end of the self-centering floating mechanism and is locked by the pin. The sealing plug is interference-fitted with the quick-connect fitting.

[0010] The beneficial effects of this utility model are as follows: The self-centering floating mechanism of this utility model makes the seal more snug, greatly increasing the reliability of the seal and avoiding incomplete sealing, deviations between the sealing pipe or hole position and the sealing mechanism, thus achieving stable sealing pressure. At the same time, this mechanism has low manufacturing cost, is simple to operate and maintain, and saves labor. Attached Figure Description

[0011] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the accompanying drawings described in the embodiments will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional structural diagram of a self-centering floating plugging mechanism; Figure 2 This is an exploded three-dimensional structural diagram of a self-centering floating plugging mechanism. Figure 3 This is a three-dimensional structural cross-sectional view of a self-centering floating plugging mechanism.

[0013] In the diagram: 201, sealing plug; 202, quick-connect fitting; 203, pin; 204, outer sleeve; 205, alignment spring; 206, centering ball; 207, centering spring; 208, end cap; 209, guide rod; 210, floating connecting shaft; 211, assist spring; 212, base plate; 213, inner groove of the shaft; 214, connecting shaft boss; 215, arc-shaped end face; 216, outer sleeve connecting section. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0017] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0018] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0019] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0020] like Figure 1 As shown in Figure 2, this utility model provides a self-centering floating sealing mechanism, including: a self-centering floating mechanism, a sealing mechanism, and a base plate 212. The self-centering floating mechanism is floatingly installed at the front of the base plate 212, and the sealing mechanism is installed at the front end of the self-centering floating mechanism for sealing pipes or holes.

[0021] like Figure 2 As shown, the self-centering floating mechanism includes an outer sleeve 204, a correction spring 205, a centering steel ball 206, a centering spring 207, an end cap 208, guide rods 209, a floating connecting shaft 210, and a booster spring 211. Two guide rods 209 are symmetrically installed at both ends of the end cap 208 and are floatingly connected to the base plate 212. One end of the floating connecting shaft 210 is fixedly installed on the base plate 212, and the other end is floatingly installed inside the end cap 208 and the outer sleeve 204. A centering steel ball 206 is disposed between the floating connecting shaft 210 and the outer sleeve 204. The booster spring 211 is disposed within the floating... On the outer periphery of the moving connecting shaft 210, one end of the assisting spring 211 acts on the base plate 212, and the other end is set on the end cover 208; a connecting shaft boss 214 is provided at the floating connection between the floating connecting shaft 210 and the end cover 208; an inner groove 213 is provided inside the floating connecting shaft 210; a centering spring 207 is provided in the inner groove 213; the end of the spring extending out of the inner groove 213 acts on the centering steel ball 206; a correction spring 205 is provided on the outside of the floating connecting shaft 210, one end of which acts on the connecting shaft boss 214, and the other end acts on the inner wall of the outer sleeve 204.

[0022] The centering steel ball 206 acts on the arc-shaped end face 215 inside the outer sleeve 204. The outer peripheral surface of the connecting shaft boss 214 of the floating connecting shaft 210 interacts with the inner ring of the end cover 208.

[0023] like Figure 2 As shown, the sealing mechanism includes a quick-connect fitting 202, a sealing plug 201, and a pin 203. The quick-connect fitting 202 is installed at the front end of the self-centering floating mechanism and is locked using the pin 203. The sealing plug 201 is interference-fitted with the quick-connect fitting 202, allowing for the sealing of pipes or holes. The sealing plug 201 at the front end of the sealing mechanism can be quickly replaced, and different specifications of quick-connect fittings 202 can also be used. The quick-connect fitting 202 is quickly installed, removed, and locked using the pin 203. The quick-connect fitting 202 is inserted into the outer sleeve connecting section 216 and connected via the pin 203.

[0024] The working process of this utility model is as follows: The base plate 212 moves forward under the thrust generated by the cylinder, thereby pushing the floating connecting shaft 210. The assist spring 211 ensures that it does not shift under the thrust, so as not to affect the accuracy of the sealing positioning. The floating connecting shaft 210 pushes the centering spring 207 in the inner groove 213 of the shaft. The thrust received by the centering spring 207 is evenly covered on the surface of the centering steel ball 206. The other side of the centering steel ball 206 acts on the arc-shaped end face 215 of the outer sleeve 204, thereby pushing the outer sleeve 204 forward. One end of the quick-connect connector 202 is inserted into the connecting section 216 of the outer sleeve and connected by the pin 203. The other end of the quick-connect connector 202 is interference-fitted with the sealing plug 201. The outer sleeve 204 moves forward, thereby driving the quick-connect connector 202 and the sealing plug 201 forward, completing the sealing.

[0025] The alignment spring 205 ensures that the centering steel ball 206 does not shift. Under the thrust without shifting, the entire mechanism moves to the front end of the pipe or hole to be sealed and presses it tightly to seal it. After sealing, the assist spring 211 retracts through the guide rod 209. The alignment spring 205, centering spring 207, and assist spring 211 play a buffering role in this process, preventing excessive thrust generated by the cylinder from damaging the sealing plug 201, and extending the service life of the entire mechanism.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-centering floating sealing mechanism, characterized in that: It includes a blocking mechanism, a self-centering floating mechanism, and a base plate (212). The self-centering floating mechanism is floatingly installed at the front end of the base plate (212), and the blocking mechanism is installed at the front end of the self-centering floating mechanism. The self-centering floating mechanism includes an outer sleeve (204), a correction spring (205), a centering steel ball (206), a centering spring (207), an end cap (208), a guide rod (209), a floating connecting shaft (210), and an assisting spring (211). Two guide rods (209) are symmetrically installed at both ends of the end cap (208) and are floatingly connected to the base plate (212). One end of the floating connecting shaft (210) is fixedly installed on the base plate (212), and the other end is floatingly installed inside the end cap (208) and the outer sleeve (204). A centering steel ball (206) is provided between the floating connecting shaft (210) and the outer sleeve (204). The assisting spring (211) is provided on the outer periphery of the floating connecting shaft (210). One end of the assisting spring (211) acts on the base plate (212), and the other end is provided on the end cap (208). A connecting shaft boss (214) is provided at the floating connection between the floating connecting shaft (210) and the end cover (208). An inner groove (213) is provided inside the floating connecting shaft (210). A centering spring (207) is provided inside the inner groove (213). The end of the spring extending out of the inner groove (213) acts on the centering steel ball (206). The correction spring (205) is located on the outside of the floating connecting shaft (210), with one end acting on the connecting shaft boss (214) and the other end acting on the inner wall of the outer sleeve (204).

2. The mechanism according to claim 1, characterized in that: The sealing mechanism includes a quick-connect connector (202), a sealing plug (201), and a pin (203). The quick-connect connector (202) is installed at the front end of the self-centering floating mechanism and is locked by the pin (203). The sealing plug (201) is interference-fitted with the quick-connect connector (202).

3. The mechanism according to claim 2, characterized in that: The quick-connector (202) is inserted into the outer sleeve connecting section (216) and connected by a pin (203).

4. The mechanism according to claim 1, characterized in that: The centering steel ball (206) acts on the arc-shaped end face (215) inside the outer sleeve (204).

5. The mechanism according to claim 1, characterized in that: The outer circumferential surface of the connecting shaft boss (214) of the floating connecting shaft (210) interacts with the inner ring of the end cap (208).

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