Tire air leakage prevention self-sealing adhesive fluidity testing device

Abstract

The utility model provides a tire air leakage prevention self-sealing adhesive fluidity testing device which comprises a supporting column, a weight supporting rod, a base, a dial indicator, a weight, a weight tray, a handle, a pressing head, a charging barrel, an outflow groove, a tooth-shaped groove and a dial indicator supporting rod. The self-sealing glue is filled into the charging barrel, the weight is used for applying load to the pressing head matched with the charging barrel in size, the pressing head presses downwards to pressurize the self-sealing glue in the charging barrel, the self-sealing glue flows into the outflow grooves from the bottom of the charging barrel, and the pressing displacement of the pressing head and the number of the glue flowing through the tooth-shaped grooves of the four outflow grooves are recorded through the digital display dial indicator. The flowability of the self-sealing adhesive can be visually and quantitatively represented, and the larger the downward pressing displacement of the pressing head is, the larger the number of the tooth-shaped grooves flowing through the pressing head is, and the better the flowability of the adhesive material is.

Description

Technical Field

[0001] The present application relates to the technical field of self-sealing adhesive fluidity detection, and in particular to a tire anti-leakage self-sealing adhesive fluidity testing device. Background Art

[0002] Tire anti-leakage self-sealing glue can be heated and coated on the inner wall of the tire (the surface of the airtight layer). When the crown or shoulder of the tire is punctured by sharp objects such as nails, the self-sealing glue can instantly wrap the punctured object tightly to prevent the tire from leaking; when the punctured object is pulled out, the self-sealing glue will automatically seal and heal instantly, tightly blocking the hole and preventing the tire from leaking.

[0003] The performance characteristics of self-sealing adhesive are as follows: when the rubber compound is coated on the inner wall of the tire, it should not flow and deform under the influence of the centrifugal force of the tire running; when the tire is punctured by a sharp object (such as a nail), it should have a certain fluidity and be able to wrap the nail instantly; when the nail is pulled out, it can flow and plug the hole. These performance characteristics are closely related to the fluidity of the self-sealing adhesive.

[0004] Therefore, the fluidity evaluation of self-sealing adhesive is an important performance evaluation indicator. However, there is currently no suitable device that can intuitively and quantitatively evaluate the fluidity of tire anti-leakage self-sealing adhesive. Utility Model Content

[0005] The present application provides a tire anti-leakage self-sealing adhesive fluidity testing device, which solves the problems mentioned in the background technology.

[0006] The embodiment of the present application provides a tire leak-proof self-sealing adhesive fluidity testing device, comprising a support column, a weight support rod, a base, a dial indicator, a weight, a weight tray, a handle, a pressure head, a barrel, an outflow groove, a toothed groove, and a dial indicator support rod;

[0007] The support column is vertically fixed to one side of the top of the base, the dial indicator support rod is horizontally arranged on the upper part of the support column, the weight support rod is horizontally arranged in the middle of the support column, and the weight support rod is height-adjustable;

[0008] The dial indicator is located above the dial indicator support rod, the bottom of the dial indicator is connected to the top of the pressure head through a vertical connecting rod, the vertical connecting rod passes through the dial indicator support rod and the weight support rod in sequence from top to bottom, the weight tray is fixedly arranged in the middle of the vertical connecting rod and located above the weight support rod, the weight can be placed on the weight tray, the pressure head is located below the weight support rod, the handle is connected to the pressure head, and the barrel is arranged directly below the pressure head;

[0009] The barrel includes a cylindrical sleeve and a bottom circular platform. The cylindrical sleeve and the bottom circular platform are injection-molded as one piece and are made of transparent acrylic material. The top and bottom ends of the cylindrical sleeve are respectively provided with a feeding port and a discharging port. The inner diameter of the cylindrical sleeve is larger than the outer diameter of the pressure head. The bottom circular platform is fixed to the base by bolts. An outflow groove is provided on the base below the bottom circular platform, and equidistant serrated grooves are set on the outflow groove.

[0010] In the preferred technical solution of the above-mentioned tire anti-leakage self-sealing glue fluidity testing device, the outflow grooves are symmetrically distributed in a cross shape, with a total of four, and each outflow groove is provided with equidistant serrated grooves.

[0011] In the preferred technical solution of the above-mentioned tire anti-leakage self-sealing adhesive fluidity testing device, the four corners of the bottom of the base are equipped with height-adjustable feet.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] The self-sealing adhesive is filled into the barrel, and a weight is used to apply a load to the pressure head that matches the size of the barrel. The pressure head presses down to pressurize the self-sealing adhesive in the barrel, causing the self-sealing adhesive to flow from the bottom of the barrel into the outflow groove. The pressure head downward displacement and the number of tooth-shaped grooves through which the adhesive flows through the four outflow grooves recorded by the digital micrometer can intuitively and quantitatively characterize the fluidity of the self-sealing adhesive. The greater the pressure head downward displacement and the more tooth-shaped grooves through which the adhesive flows, the better the fluidity of the adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following describes an embodiment of the tire anti-leakage self-sealing adhesive fluidity testing device of the present application with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of a tire anti-leakage self-sealing adhesive fluidity testing device provided in this application;

[0016] Figure 2 Schematic diagram of the structure of the outflow groove and the tooth groove. DETAILED DESCRIPTION

[0017] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art may adjust them as needed to suit specific applications.

[0018] Secondly, it should be noted that in the description of this application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0019] In addition, it should be noted that, in the description of this application, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0020] The following describes the specific implementation of this application in detail with reference to specific embodiments:

[0021] See Figure 1 and 2 The present embodiment provides a tire leak-proof self-sealing adhesive fluidity testing device, comprising a support column 1, a weight support rod 2, a base 3, a dial indicator 4, a weight 5, a weight tray 6, a handle 7, a pressure head 8, a barrel 9, an outflow groove 10, a toothed groove 11, and a dial indicator support rod 12;

[0022] The support column 1 is vertically fixed to one side of the top of the base 3, the dial indicator support rod 12 is horizontally arranged on the upper part of the support column 1, and the weight support rod 2 is horizontally arranged in the middle of the support column 1. The weight support rod 2 is height-adjustable;

[0023] The dial indicator 4 is located above the dial indicator support rod 12. The bottom of the dial indicator 4 is connected to the top of the pressure head 8 through a vertical connecting rod. The vertical connecting rod passes through the dial indicator support rod 12 and the weight support rod 2 from top to bottom. The weight tray 6 is fixedly arranged in the middle of the vertical connecting rod and is located above the weight support rod 2. The weight 5 can be placed on the weight tray 6. The weight tray 6 can be equipped with weights 5 of different loads according to the fluidity difference of the self-sealing glue. The pressure head 8 is located below the weight support rod 2. The handle 7 is connected to the pressure head 8. The pressure head 8 can be lifted or dropped by the handle 7. The barrel 9 is arranged directly below the pressure head 8. The downward displacement of the pressure head 8 is obtained by the dial indicator 4 connected to the pressure head 8. The change in the displacement of the pressure head at the same time can reflect the fluidity of the rubber compound. The more the pressure head is displaced downward in the same time, the better the fluidity of the rubber compound.

[0024] The barrel 9 includes a cylindrical sleeve and a bottom circular platform. The cylindrical sleeve and the bottom circular platform are injection-molded as one piece and are made of transparent acrylic material. The top and bottom ends of the cylindrical sleeve are respectively provided with a feeding port and a discharging port. The inner diameter of the cylindrical sleeve is larger than the outer diameter of the pressure head 8. The bottom circular platform is fixed to the base 3 by bolts and can be disassembled and cleaned after testing. An outflow groove 10 is provided on the base 3 below the bottom circular platform, and equidistant serrated grooves 11 are set on the outflow groove 10.

[0025] In the preferred technical solution of the above-mentioned tire anti-leakage self-sealing adhesive fluidity testing device, the cylindrical sleeve and the bottom circular platform are made of transparent acrylic material.

[0026] In the preferred technical solution of the above-mentioned tire anti-leakage self-sealing glue fluidity testing device, the outflow grooves 10 are cross-symmetrically distributed, with a total of four, and equidistant serrated grooves 11 are set on the outflow grooves 10. The experimenter can clearly read the number of serrated grooves that the self-sealing glue flows through to evaluate the fluidity of the rubber.

[0027] In the preferred technical solution of the tire anti-leakage self-sealing adhesive fluidity testing device, the four bottom corners of the base 3 are equipped with height-adjustable feet to adjust the levelness of the entire testing device.

[0028] The tire anti-leakage self-sealing adhesive fluidity test device is used to test the fluidity of the self-sealing adhesive. The specific method is as follows:

[0029] Adjust the height of the weight support rod 2 according to the height of the weight of the specified load, and place the weight 5 of the specified load on the weight tray 6; the specified load varies depending on the selected self-sealing glue;

[0030] Lift the pressure head 8 by the handle 7 and inject the specified volume of self-sealing glue into the cylindrical sleeve from the feeding port at the top of the cylindrical sleeve;

[0031] The pressure head 8 is dropped and the timing is started. The pressure head 8 presses down the self-sealing adhesive in the cylindrical sleeve under the action of the weight 5 for a specified time. The self-sealing adhesive flows out from the discharge port at the bottom of the cylindrical sleeve into the outflow groove 10 on the base.

[0032] The displacement of the pressure head 8 is measured by the micrometer 4, and the number of serrated grooves 11 through which the self-sealing adhesive flows in the outflow groove 10 is observed, which quantitatively reflects the fluidity of the self-sealing adhesive. The greater the displacement of the micrometer, the more serrated grooves the self-sealing adhesive flows through, and the better the fluidity of the adhesive.

[0033] The embodiments of the present application have so far described the technical solutions of the present application in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A tire anti-leakage self-sealing adhesive fluidity testing device, characterized in that: It includes a support column, a weight support rod, a base, a dial indicator, a weight, a weight tray, a handle, a pressure head, a barrel, an outflow groove, a toothed groove and a dial indicator support rod; The support column is vertically fixed to one side of the top of the base, the dial indicator support rod is horizontally arranged on the upper part of the support column, the weight support rod is horizontally arranged in the middle of the support column, and the weight support rod is height-adjustable; The dial indicator is located above the dial indicator support rod, the bottom of the dial indicator is connected to the top of the pressure head through a vertical connecting rod, the vertical connecting rod passes through the dial indicator support rod and the weight support rod in sequence from top to bottom, the weight tray is fixedly arranged in the middle of the vertical connecting rod and located above the weight support rod, the weight can be placed on the weight tray, the pressure head is located below the weight support rod, the handle is connected to the pressure head, and the barrel is arranged directly below the pressure head; The barrel includes a cylindrical sleeve and a bottom circular platform. The cylindrical sleeve and the bottom circular platform are injection-molded as one piece and are made of transparent acrylic material. The top and bottom ends of the cylindrical sleeve are respectively provided with a feeding port and a discharging port. The inner diameter of the cylindrical sleeve is larger than the outer diameter of the pressure head. The bottom circular platform is fixed to the base by bolts. An outflow groove is provided on the base below the bottom circular platform, and equidistant serrated grooves are set on the outflow groove.

2. The tire anti-leakage self-sealing adhesive fluidity testing device according to claim 1, characterized in that: The outflow grooves are symmetrically distributed in a cross shape, with four in total, and each outflow groove is provided with equidistant tooth-shaped grooves.

3. The tire anti-leakage self-sealing adhesive fluidity testing device according to claim 1, characterized in that: The four corners of the bottom of the base are equipped with height-adjustable feet.

Images