CN210880460U

CN210880460U - Spring air hole sleeve with barb

Info

Publication number: CN210880460U
Application number: CN201921754232.0U
Authority: CN
Inventors: 王益民
Original assignee: Zhenjiang Weiyi Hardware Co ltd
Current assignee: Zhenjiang Weiyi Hardware Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-30
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a spring gas pocket cover with barb, including the overcoat and install the dabber in the overcoat vestibule, overcoat inner chamber upper end is provided with spacing arch, and it has the installation chute to open on the overcoat inner chamber, and the outer wall of dabber has cup jointed the spring, and the spring is located the inner chamber of overcoat, and the inner chamber lower extreme of overcoat is opened has the airtight groove of laminating mutually with the dabber, and open the inner chamber bottom of overcoat has the circular arc mesa, and the tang frustum is installed to the bottom of dabber, and the outer wall lower extreme of overcoat is provided with the barb. The utility model provides a because tire air pressure is too high, ordinary spring gas pocket cover receives high atmospheric pressure's influence easily, makes the position of spring gas pocket cover take place to squint, and then has the problem of dangerous dress in follow-up operation.

Description

Spring air hole sleeve with barb

Technical Field

The utility model relates to an air pocket cover technical field specifically is a spring air pocket cover with barb.

Background

The tire molding needs to be carried out by the steps of densely kneading raw rubber, manufacturing a tire blank, installing a mold to a vulcanizing machine, putting the tire blank into the mold, heating and vulcanizing, tire molding and the like. In the heating and vulcanizing stage, the gas in the mold cavity needs to be exhausted, and the common exhaust hole sleeve can leave tire hair on the surface of the tire, so that the tire is required to be trimmed and the appearance is influenced. In view of the above, spring air sleeves have been developed. The spring air sleeve generally comprises a sleeve-shaped outer sleeve, a mandrel is coaxially sleeved in the outer sleeve, and a spring is sleeved on the mandrel. In practical application, the spring air hole sleeve is embedded into the exhaust hole by utilizing the exhaust hole which is formed in the mold and penetrates through the mold cavity and the external exhaust equipment, and the end, where the sealing matching surface of the outer sleeve is located, is flush with the wall of the mold cavity. For this reason, we have designed a spring porous sleeve with barbs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a spring gas pocket cover with barb solves because tire air pressure is too high, and ordinary spring gas pocket cover receives high atmospheric pressure's influence easily, makes the skew take place for the position of spring gas pocket cover, and then has the problem of dangerous dress in follow-up operation.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a spring gas pocket cover with barb, includes the overcoat and installs the dabber in the overcoat vestibule, overcoat inner chamber upper end is provided with spacing arch, it has the installation chute to open on the overcoat inner chamber, the outer wall of dabber has cup jointed the spring, and the spring is located the inner chamber of overcoat, the inner chamber lower extreme of overcoat is opened has the airtight groove of laminating mutually with the dabber, open the inner chamber bottom of overcoat has the circular arc mesa, the tang frustum is installed to the bottom of dabber, the outer wall lower extreme of overcoat is provided with the barb.

The utility model provides an aforesaid spring gas pocket cover with barb, the top rigid coupling of dabber has spacing plectane, spacing plectane cooperatees with spacing bellied top, the bottom inner chamber of dabber is opened has the gas pocket groove, and the gas pocket groove extends to the bottom from the inner chamber middle part of dabber.

In the aforementioned spring vent sleeve with barbs, the installation chute comprises an inclined plane end and a vertical end, and the slope of the inclined plane end of the installation chute is 10-15 degrees.

In the spring air hole sleeve with the barb, the spring is positioned between the limiting circular plate and the upper end of the sealed groove.

The aforesaid spring gas pocket cover with barb, the barb is provided with a plurality ofly, and a plurality of barbs are the circumference along the outer wall lower extreme of overcoat and encircle the form setting, the chamfer of barb is 10-20 degrees.

According to the spring air hole sleeve with the barbs, the spigot frustum comprises the conical table, the cylindrical table and the step table which are integrally formed, and the outer wall of the step table is attached to the arc table surface.

The utility model has the advantages that: the top rigid coupling of (one) dabber has spacing plectane, and spacing plectane cooperatees with spacing bellied top, lets the dabber play limiting displacement at the inner chamber during operation of gas pocket cover, prevents that the upper end of traditional dabber from entering into the dead situation of gas pocket cover inner chamber card, and the outer wall and the circular arc mesa of the bench on the spigot cone laminate mutually simultaneously, play the sealed purpose of laminating formula one-way opening and closing.

The barbs at the lower end of the outer wall of the outer sleeve are arranged in a plurality of circumferential surrounding modes, the barbs are arranged along the lower end of the outer wall of the outer sleeve, the chamfering angle of each barb is 10-20 degrees, when the air hole sleeve is installed inside the tire in a matching mode, the air hole sleeve can be further fastened with the tire through the barb structure in a reinforcing mode, even if the air hole sleeve is pressed by tire air pressure, the air hole sleeve cannot be shifted in position, and the safety of the air hole sleeve is further improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a spigot frustum.

In the figure: 1. the outer sleeve comprises an outer sleeve body, 2 parts of a mandrel, 201 parts of an air hole groove, 202 parts of a limiting circular plate, 3 parts of a limiting protrusion, 4 parts of an installation chute, 5 parts of a spring, 6 parts of a sealing groove, 7 parts of an arc table surface, 8 parts of a spigot frustum, 801 parts of a conical table, 802 parts of a cylindrical table, 803 parts of a step table, 9 parts of an agnail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-2: a spring air hole sleeve with barbs comprises an outer sleeve 1 and a mandrel 2 installed in a hole cavity of the outer sleeve (10), wherein a limiting circular plate 202 is fixedly connected to the top of the mandrel 2, the limiting circular plate 202 is matched with the top of a limiting protrusion 3, an air hole groove 201 is formed in a bottom inner cavity of the mandrel 2, the air hole groove 201 extends from the middle of the inner cavity of the mandrel 2 to the bottom, the limiting protrusion 3 is arranged at the upper end of the inner cavity of the outer sleeve 1, an installation chute 4 is formed in the upper end of the inner cavity of the outer sleeve 1, the installation chute 4 comprises an inclined plane end and a vertical end, the inclined plane end of the installation chute 4 is 10-15 degrees in gradient, a spring 5 is sleeved on the outer wall of the mandrel 2 and located in the inner cavity of the outer sleeve 1, a closed groove 6 attached to the mandrel 2 is formed in the lower end of the inner cavity of the outer sleeve 1, the spring 5 is located between the limiting circular, spigot frustum 8 is installed to the bottom of dabber 2, and spigot frustum 8 includes toper platform 801, cylinder platform 802 and ladder platform 803, toper platform 801, cylinder platform 802 and ladder platform 803 integrated into one piece, and the outer wall of ladder platform 803 laminates with circular arc mesa 7 mutually, and the outer wall lower extreme of overcoat 1 is provided with barb 9, and barb 9 is provided with a plurality ofly, and a plurality of barbs 9 are the setting of circumference encircleing form along the outer wall lower extreme of overcoat 1, and the chamfer of barb 9 is 10-20 degrees.

To sum up, when the utility model is used, firstly, the top of the mandrel 2 is fixedly connected with the limiting circular plate 202, the limiting circular plate 202 is matched with the top of the limiting protrusion 3, so that the mandrel 2 plays a limiting role when the inner cavity of the air hole sleeve works, the situation that the upper end of the traditional mandrel 2 enters the inner cavity of the air hole sleeve to be blocked is prevented, meanwhile, the outer wall of the step platform 803 on the spigot cone platform 8 is jointed with the arc table surface 7, the jointing type unidirectional opening and closing sealing purpose is achieved, a plurality of barbs 9 are arranged at the lower end of the outer wall of the outer sleeve 1, and a plurality of barbs are arranged in a circumferential surrounding manner along the lower end of the outer wall of the outer sleeve 1, the chamfer angle of the barb 9 is 10-20 degrees, when the air hole sleeve is matched and installed in the tire volume, the barb 9 structure can be further fastened with the interior of the tire in a reinforcing way, even under the oppression, the safety of the air hole sleeve is further improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a spring gas pocket cover with barb, includes overcoat (1) and installs dabber (2) in overcoat (10) vestibule, its characterized in that: overcoat (1) inner chamber upper end is provided with spacing arch (3), open overcoat (1) inner chamber upper end has installation chute (4), spring (5) have been cup jointed to the outer wall of dabber (2), and spring (5) are located the inner chamber of overcoat (1), the inner chamber lower extreme of overcoat (1) is opened has airtight groove (6) of laminating mutually with dabber (2), open the inner chamber bottom of overcoat (1) has circular arc mesa (7), tang frustum (8) are installed to the bottom of dabber (2), the outer wall lower extreme of overcoat (1) is provided with barb (9).

2. The spring porous sleeve with the barb of claim 1, wherein: the top rigid coupling of dabber (2) has spacing plectane (202), spacing plectane (202) cooperate with the top of spacing arch (3), the bottom inner chamber of dabber (2) is opened has gas hole groove (201), and gas hole groove (201) extend to the bottom from the inner chamber middle part of dabber (2).

3. The spring porous sleeve with the barb of claim 1, wherein: the installation chute (4) comprises an inclined plane end and a vertical end, and the slope of the inclined plane end of the installation chute (4) is 10-15 degrees.

4. The spring porous sleeve with the barb of claim 1, wherein: the spring (5) is positioned between the limiting circular plate (202) and the upper end of the sealed groove (6).

5. The spring porous sleeve with the barb of claim 1, wherein: barb (9) are provided with a plurality ofly, and a plurality of barbs (9) are the setting of circumference encircleing form along the outer wall lower extreme of overcoat (1), the chamfer of barb (9) is 10-20 degrees.

6. The spring porous sleeve with the barb of claim 1, wherein: the spigot frustum (8) comprises a conical table (801), a cylindrical table (802) and a stepped table (803), wherein the conical table (801), the cylindrical table (802) and the stepped table (803) are integrally formed, and the outer wall of the stepped table (803) is attached to the arc table surface (7).