CN216520081U - Press from both sides tight spacing ring and trachea connection structure - Google Patents

Abstract

The application discloses press from both sides tight spacing ring and trachea connection structure. The clamping limiting ring comprises a ring body, wherein the side wall of the ring body is provided with a notch part, and the notch part extends along the axial direction of the ring body; the gap part has a first opening width under the condition that the ring body is not acted by an external force, and has a second opening width under the condition that the ring body is stressed radially, wherein the second opening width is smaller than the first opening width; the ring body is provided with an inner side wall, and non-return ratchet teeth are convexly arranged on the inner side wall and are configured to be matched and connected with an external pipeline.

Description

Press from both sides tight spacing ring and trachea connection structure

Technical Field

The application relates to the technical field of pipeline connection, in particular to a clamping limiting ring and a trachea connecting structure.

Background

The air pipe joint is widely used, and the air pipe joint is required to be used in many construction sites, mechanical equipment and the like. The firmness and the sealing performance of the connection of the air pipe joint are very important, and if the connection of the air pipe joint is not firm enough and loosens in use, the equipment can be damaged, and a safety accident can be caused in serious cases.

In view of the above, a new technical solution is needed to improve the firmness of the connection of the air tube connector.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a clamp stop collar and trachea connection structure's new technical scheme.

According to a first aspect of the present application there is provided a clamping stop collar comprising:

the side wall of the ring body is provided with a gap part, and the gap part extends along the axial direction of the ring body; the gap part has a first opening width under the condition that the ring body is not acted by external force, and has a second opening width under the condition that the ring body is stressed by radial pressure, wherein the second opening width is smaller than the first opening width;

the ring body is provided with an inner side wall, the inner side wall is convexly provided with check ratchet teeth, and the check ratchet teeth are configured to be matched and connected with an external pipeline.

Optionally, the ring body has a first end surface and a second end surface, and the notch portion is disposed through the first end surface and the second end surface.

Optionally, the outer wall of the ring body is provided with a first tapered surface portion, and an outer diameter of the first tapered surface portion is gradually reduced along a direction from the first end face to the second end face.

Optionally, the non-return ratchet comprises a first tooth surface and a second tooth surface which are connected with each other, and an acute included angle is formed between the first tooth surface and the second tooth surface;

the first tooth surface is further away from the first end surface than the second tooth surface, and the first tooth surface is obliquely arranged from the inner side wall to a direction close to the first end surface.

Optionally, the inner sidewall is provided with at least two ratchet teeth along an axial direction of the ring body.

Optionally, a cross section where a central axis of the ring body is located and the first tapered surface portion have a first intersection line, and an included angle between the first intersection line and the central axis is 15 ° to 20 °.

Optionally, a ratio of the width of the first opening to the height of the non-return ratchet is 2 pi.

Optionally, the ring body has a cutaway portion having a first wall thickness, an area outside the cutaway portion having a second wall thickness, the first wall thickness being less than the second wall thickness; the tangent plane portion and the gap portion are symmetrically arranged relative to the central axis of the ring body.

According to a second aspect of the present application, there is provided an air tube connecting structure, which includes the clamping limiting ring of the first aspect, and further includes an air tube body and an air tube connector;

the air pipe joint and the clamping limiting ring are sleeved outside the air pipe body, the non-return ratchet is connected with the air pipe body, and the air pipe joint is configured to be connected with external equipment.

Optionally, the outer wall of the clamping limiting ring is provided with a first conical surface portion, the inner wall of the air pipe joint is provided with a second conical surface portion, and the first conical surface portion is in matched abutting joint with the second conical surface portion.

Optionally, the height of the non-return ratchet is 0.35 times the wall thickness of the trachea body side wall.

The technical scheme adopted by the application can achieve the following beneficial effects:

according to the clamping limiting ring provided by the embodiment of the application, the ring body of the clamping limiting ring can contract along the radial direction by arranging the opening part, so that the ring body can firmly hold an external pipeline sleeved in the ring body; the non-return ratchet is arranged, so that the external pipeline can be further fastened, the external pipeline is prevented from loosening, and the safety performance is improved.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a first schematic view of a clamping stop collar according to an embodiment of the present application;

FIG. 2 is a second schematic structural view of a clamping and spacing ring according to an embodiment of the present application;

FIG. 3 is a third schematic structural view of a clamping stop collar according to an embodiment of the present application;

FIG. 4 is an exploded schematic view of a tracheal connection according to one embodiment of the present application;

FIG. 5 is a schematic illustration of an exploded configuration of a tracheal connection configuration mated with an external device, in accordance with one embodiment of the present application;

FIG. 6 is a schematic diagram of the overall configuration of the tracheal connection structure mated with an external device, in accordance with one embodiment of the present application;

FIG. 7 is a schematic illustration of a portion of a tracheal connection according to one embodiment of the present application;

FIG. 8 is a schematic view, partly in section, of a tracheal connection, according to one embodiment of the present application;

FIG. 9 is a second partial schematic structural view of a tracheal connection structure in accordance with one embodiment of the present application;

FIG. 10 is a schematic illustration of a portion of a tracheal connection according to one embodiment of the present application;

FIG. 11 is a graphical representation of dimensional parameter markings of the clamping stop collar;

figure 12 shows a dimensional parameter signature of the tracheal body.

Description of reference numerals:

1. a trachea body; 11. a first end portion; 12. a second end portion; 2. a first seal ring; 3. a second seal ring; 4. a gas pipe joint; 41. a second tapered surface portion; 42. a threaded portion; 43. a boss portion; 5. a third seal ring; 6. clamping the limiting ring; 60. a ring body; 601. a first end face; 602. a second end face; 61. an inner sidewall; 62. non-return ratchets; 621. a first tooth surface; 622. a second tooth surface; 63. a first conical surface portion; 631. a first intersection line; 64. a gap part; 65. cutting a face; 7. an electromagnetic distribution valve.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 10, according to an embodiment of the present application, there is provided a clamping limit ring, which includes a ring body 60, a gap portion 64 is formed on a side wall of the ring body 60, and the gap portion 64 extends along an axial direction of the ring body 60; the gap portion 64 has a first opening width when the ring body 60 is not subjected to an external force, and the gap portion 64 has a second opening width when the ring body 60 is subjected to a radial pressure, the second opening width being smaller than the first opening width; the ring body 60 has an inner sidewall 61, the inner sidewall 61 is protrudingly provided with a check ratchet 62, and the check ratchet 62 is configured to be fittingly coupled with an external pipe.

When the clamping limiting ring provided by the embodiment of the application is used, an external pipeline is sleeved in the ring body 60 of the clamping limiting ring; because the ring body 60 is provided with the gap part 64, the ring body 60 can be contracted along the radial direction thereof by applying pressure along the radial direction to the ring body 60, so that the ring body 60 can firmly hold the external pipeline sleeved therein. And, because the inner side wall 61 of the ring body 60 is convexly provided with the non-return ratchet 62, when the ring body 60 tightly holds the external pipeline, the non-return ratchet 62 can further fasten the external pipeline, and the non-return ratchet 62 can hook the external pipeline to prevent the external pipeline from loosening, thereby improving the safety performance.

Referring to fig. 1, in one embodiment, the ring body 60 has a first end 601 and a second end 602, and the gap 64 is disposed through the first end 601 and the second end 602.

In this particular example, the slit 64 provided therethrough allows the pinch-stop ring 6 to be easily contracted in the radial direction thereof; more specifically, the clamping limiting ring 6 is made of a metal material and has certain plastic deformation capacity.

Referring to fig. 1 and 2, in an embodiment, further, the outer wall of the ring body 60 is provided with a first tapered surface portion 63, and an outer diameter of the first tapered surface portion 63 is gradually reduced along a direction from the first end surface 601 to the second end surface 602.

In this particular example, the provision of the first tapered surface portion 63 assists in the engagement of the clamp stop collar 6 with external structure.

Referring to fig. 1 and 2, in one embodiment, further, the non-return ratchet 62 includes a first tooth surface 621 and a second tooth surface 622 that are connected to each other, and the first tooth surface 621 forms an acute included angle with the second tooth surface 622; the first tooth surface 621 is disposed farther from the first end surface 601 than the second tooth surface 622, and the first tooth surface 621 is disposed obliquely from the inner side wall 61 toward a direction approaching the first end surface 601.

In this specific example, the cross-sectional shape of the non-return ratchet teeth 62 is similar to a triangle in which a pointed structure is formed between the first tooth surface 621 and the second tooth surface 622; more specifically, the ratchet teeth 62 are made of hard material, such as metal, while the outer pipe sleeved in the ring body 60 is made of soft material, such as plastic, and the sharp-angled structure can hook the outer wall surface of the outer pipe, so as to firmly grasp the outer pipe.

Further, the outer pipe is sleeved into the ring body 60 from the second end face 602 toward the first end face 601, the positions of the first tooth surface 621 and the second tooth surface 622 are set, and the inclined direction of the first tooth surface 621 can play a role in guiding the sleeving of the outer pipe, so as to facilitate the sleeving of the outer pipe; after the external pipe is sleeved into the ring body 60, when the external pipe is to be pulled out reversely, the sharp-angled structure formed by the first tooth surface 621 and the second tooth surface 622 hooks the outer wall surface of the external pipe to prevent the external pipe from being pulled out, so that the external pipe is effectively prevented from being loosened.

Referring to fig. 1, in one embodiment, the inner sidewall 61 is provided with at least two ratchet teeth 62 along an axial direction of the ring body 60.

In this particular example, the provision of at least two ratchet teeth 62 in the axial direction ensures that sufficient axial tensile strength is imparted to the outer pipe, further ensuring that the outer pipe does not become loose.

Referring to fig. 4-8, according to another embodiment of the present application, there is provided an air tube connecting structure, which includes the clamping limiting ring 6, the air tube body 1 and the air tube connector 4; the air pipe joint 4 and the clamping limiting ring 6 are sleeved outside the air pipe body 1, the non-return ratchet 62 is connected with the air pipe body 1, and the air pipe joint 4 is configured to be connected with external equipment.

In the trachea connection structure provided by the embodiment of the application, the trachea body 1 is provided with a first end part 11 and a second end part 12; the air pipe joint 4 and the clamping limiting ring 6 are both sleeved outside the air pipe body 1, the clamping limiting ring 6 and the air pipe joint 4 are sequentially arranged along the direction from the first end part 11 to the second end part 12 of the air pipe body 1, and the air pipe joint 4 and the clamping limiting ring 6 are both connected to the position close to the first end part 11 of the air pipe body 1; the gas line connection 4 is in turn connected to an external device, for example an electromagnetic distributor valve 7. The clamping limiting ring 6 can play a role in clamping and reinforcing the air pipe body 1, the tightness of the connection of the air pipe connection structure and external equipment is ensured, the air pipe body 1 is prevented from being loosened, and therefore safety performance is improved.

Referring to fig. 8, in one embodiment, the outer wall of the clamping limiting ring 6 has a first tapered surface portion 63, the inner wall of the air pipe joint 4 has a second tapered surface portion 41, and the first tapered surface portion 63 is in matching abutment with the second tapered surface portion 41.

In this specific example, the clamping limiting ring 6 and the air pipe joint 4 are sleeved with each other, specifically, the part of the clamping limiting ring 6 close to the air pipe joint 4 can be sleeved into the air pipe joint 4, so that when the air pipe joint 4 enters the electromagnetic distribution valve 7 and is connected with the electromagnetic distribution valve 7, the air pipe joint 4 moves towards the direction of the clamping limiting ring 6, the part of the clamping limiting ring 6 close to the air pipe joint 4 enters the air pipe joint 4, the air pipe joint 4 applies a force along the radial direction of the clamping limiting ring 6 to the clamping limiting ring 6, and the clamping limiting ring 6 contracts along the radial direction due to the existence of the opening part 64, so that the clamping limiting ring 6 more tightly holds the air pipe body 1, and the tightness of the connection of the air pipe body 1 is further improved.

More specifically, the first conical surface 63 of the clamping limiting ring 6 enters the second conical surface 41 of the air pipe joint 4, and the matching connection of the first conical surface 63 and the second conical surface 41 can ensure that the part, close to the air pipe joint 4, of the clamping limiting ring 6 can smoothly enter the air pipe joint 4; in addition, in the process of connecting the air pipe joint 4 and the electromagnetic distribution valve 7, when the first conical surface portion 63 enters the second conical surface portion 41, the second conical surface portion 41 applies an acting force to the first conical surface portion 63 along the inclined plane direction, the acting force has a larger component force along the radial direction of the clamping limiting ring 6, and the component force is beneficial to compressing the clamping limiting ring 6 so that the clamping limiting ring 6 holds the air pipe body 1 tightly.

Referring to fig. 2, in one embodiment, further, a cross-section of a central axis of the ring body 60 and the first conical portion 63 has a first intersection line 631, and an angle a between the first intersection line 631 and the central axis is in a range of 15 ° to 20 °.

In this particular example, too small an angle a may result in an excessive axial dimension of the clamping and spacing ring 6; however, the angle a is too large, and the radial component force decomposed on the clamping limiting ring 6 is small in the process of connecting the air pipe joint 4 with the electromagnetic distribution valve 7, so that the clamping limiting ring 6 cannot well hold the air pipe body 1.

Referring to FIG. 3, in one embodiment, the ring body 60 has a cutaway portion 65, the cutaway portion 65 having a first wall thickness, the area outside the cutaway portion 65 having a second wall thickness, the first wall thickness being less than the second wall thickness; the cutout portion 65 and the slit portion 64 are provided symmetrically with respect to the central axis of the ring body 60.

In this specific example, the cut surface portion 65 having a small wall thickness is provided on the opposite side of the notch portion 64, and when the clamp stop ring 6 receives an external force, for example, when the air pipe joint 4 applies a pressure to the clamp stop ring 6, the cut surface portion 65 has a small wall thickness and a low strength, and is therefore very likely to be deformed, which is advantageous for the notch portion 64 to be tightened.

Further, since the ratchet 62 is made of hard material and the trachea body 1 is made of soft material, the ratchet 62 is embedded into the sidewall of the trachea body 1. Therefore, when the part of the clamping limiting ring 6 close to the air pipe joint 4 enters the air pipe joint 4, and the air pipe joint 4 applies force to the clamping limiting ring 6 along the radial direction of the clamping limiting ring 6, the sharp-angled structure of the non-return ratchet 62 is easy to prick into the side wall of the air pipe body 1, so that the air pipe body 1 is further hooked, and the air pipe body 1 cannot be pulled out.

Referring to fig. 11 and 12, in one embodiment, the height H of the ratchet teeth 62 is 0.35 times the wall thickness T of the sidewall of the trachea body 1, i.e., H is 0.35T. And, a ratio of the first opening width S to the height H of the non-return ratchet teeth 62 is 2 pi, i.e., S-2 pi H.

The parameter range ensures that the depth of the check ratchet 62 embedded into the side wall of the trachea body 1 is not more than one third of the wall thickness of the side wall of the trachea body 1, so that the check ratchet 62 is ensured to firmly hook the trachea body 1 and cannot damage the trachea body 1.

Referring to fig. 4 and 9, in an embodiment, the air tube connecting structure further includes a first sealing ring 2 and a second sealing ring 3, and the first sealing ring 2 and the second sealing ring 3 are disposed between the air tube body 1 and the air tube connector 4.

In this specific example, the provision of the first seal ring 2 and the second seal ring 3 is advantageous for improving the sealing performance between the gas pipe body 1 and the gas pipe joint 4, and thus the sealing performance of the entire gas pipe connection structure.

Referring to fig. 8 and 10, in one embodiment, the outer wall of the air pipe joint 4 is provided with a threaded portion 42, and the threaded portion 42 is used for connecting with an external device.

In this specific example, the air pipe joint 4 and the electromagnetic distribution valve 7 are assembled by a screw connection, and the screw portion 42 is screwed into the electromagnetic distribution valve 7, which is simple and easy to operate.

Referring to fig. 8 and 10, in an embodiment, a boss portion 43 is convexly provided on an outer wall of the air pipe joint 4, the air pipe connecting structure further includes a third sealing ring 5, the third sealing ring 5 is sleeved outside the air pipe joint 4, and the third sealing ring 5 is located between the threaded portion 42 and the boss portion 43.

In this specific example, after the air pipe joint 4 and the electromagnetic distribution valve 7 are screwed together, the third sealing ring 5 follows the air pipe joint 4 and enters the electromagnetic distribution valve 7 to realize the sealing connection with the electromagnetic distribution valve 7, the boss part 43 is exposed out of the electromagnetic distribution valve 7, and the third sealing ring 5 is clamped between the boss part 43 and the threaded part 42, so that the sealing performance between the air pipe joint 4 and the electromagnetic distribution valve 7 is improved.

More specifically, as shown in fig. 4 and 8, the first seal ring 2, the second seal ring 3, and the third seal ring 5 are provided in this order in a direction from the second end portion 12 to the first end portion 11.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (11)

1. A clamping stop collar, comprising:

the ring comprises a ring body (60), wherein a gap part (64) is formed in the side wall of the ring body (60), and the gap part (64) extends along the axial direction of the ring body (60); the gap portion (64) has a first opening width in the case where the ring body (60) is not subjected to an external force, and the gap portion (64) has a second opening width in the case where the ring body (60) is subjected to a radial pressing force, the second opening width being smaller than the first opening width;

the ring body (60) is provided with an inner side wall (61), the inner side wall (61) is convexly provided with check ratchet teeth (62), and the check ratchet teeth (62) are configured to be matched and connected with an external pipeline.

2. The clamping collar as claimed in claim 1 wherein said ring body (60) has a first end face (601) and a second end face (602), said gap portion (64) being disposed through said first end face (601) and said second end face (602).

3. The clamping collar as claimed in claim 2, characterised in that the outer wall of the collar body (60) is provided with a first conical surface portion (63), the outer diameter of the first conical surface portion (63) being arranged to decrease in a direction from the first end face (601) to the second end face (602).

4. The clamping collar as recited in claim 2, characterized in that the non-return ratchet teeth (62) comprise a first tooth flank (621) and a second tooth flank (622) connected to each other, the first tooth flank (621) and the second tooth flank (622) forming an acute included angle therebetween;

the first tooth surface (621) is disposed farther from the first end surface (601) than the second tooth surface (622), and the first tooth surface (621) is disposed obliquely from the inner side wall (61) toward a direction close to the first end surface (601).

5. The clamping collar as claimed in claim 1, characterised in that said inner lateral wall (61) is provided with at least two said non-return ratchet teeth (62) along the axial direction of said ring body (60).

6. The clamp stop collar of claim 3, wherein the cross-section of the central axis of the collar body (60) with the first tapered portion (63) has a first line of intersection (631), the first line of intersection (631) being angled at an angle of 15 ° -20 ° with respect to the central axis.

7. The clamping collar as recited in claim 1, characterised in that the ratio of the width of said first opening to the height of said non-return ratchet teeth (62) is 2 pi.

8. The clamp stop collar of claim 1, wherein the collar body (60) has a cutaway portion (65), the cutaway portion (65) having a first wall thickness, an area outside the cutaway portion (65) having a second wall thickness, the first wall thickness being less than the second wall thickness; the cutout portion (65) and the slit portion (64) are arranged symmetrically with respect to the central axis of the ring body (60).

9. An air pipe connecting structure, characterized by comprising the clamping limiting ring (6) as claimed in any one of claims 1 to 8, and further comprising an air pipe body (1) and an air pipe joint (4);

the air pipe joint (4) and the clamping limiting ring (6) are sleeved outside the air pipe body (1), the non-return ratchet (62) is connected with the air pipe body (1), and the air pipe joint (4) is configured to be connected with external equipment.

10. The trachea connection structure according to claim 9, wherein the outer wall of the clamping limiting ring (6) has a first conical surface portion (63), the inner wall of the trachea joint (4) has a second conical surface portion (41), and the first conical surface portion (63) is in matching abutment with the second conical surface portion (41).

11. The tracheal connection according to claim 9, wherein the ratchet teeth (62) have a height of 0.35 times the wall thickness of the tracheal body (1) side wall.

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