Device for testing torsion angle of composite hose

Abstract

The utility model provides a device for testing the torsion angle of a composite hose. The device comprises a dial assembly and a pointer assembly, a base of the dial assembly and a pointer in the pointer assembly can synchronously rotate with one end of the composite hose, and the dial does not rotate under the action of the rotation limiting piece and keeps an initial state; in the process that the pressure of the composite hose reaches a specified value, along with the synchronous rotation of the pointer and the non-rotation of the dial, the torsion degree of one end of the composite hose can be visually observed, and secondary calculation by testers is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of performance testing devices for composite hoses, and more specifically, to a device for testing the torsion angle of a composite hose. Background Art

[0002] LNG composite hoses are commonly used in liquefied natural gas production systems and transportation vessels. When a composite hose is manufactured, it needs to be subjected to performance testing. Only when the performance test results of the composite hose meet the requirements can it be considered a qualified product. During the loading and unloading of liquefied natural gas, the composite hose needs to withstand a relatively high internal pressure, so it must have sufficient pressure resistance. Therefore, the torsional amount per meter of the composite hose under the specified test pressure is a very important parameter.

[0003] Currently, to test the torsional amount per meter of a composite hose under the specified test pressure, usually, a tester draws a straight line along the length direction of the hose from point A at one end of the hose body. After the pressure of the composite hose reaches the specified value, the initially marked straight line becomes a helix, and the initially marked straight line intersects the arc where the reference point C (obtained after the initial straight line is twisted) at the other end of the hose body at point C1. Then, the arc length from C to C1 is measured, and finally, the torsional amount per meter of the composite hose under the specified test pressure is calculated through calculation. This method is relatively complex and requires manual secondary calculation, which may lead to errors in the final result. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a device for testing the torsion angle of a composite hose to solve the above problems.

[0005] The present utility model adopts the following scheme:

[0006] The present application provides a device for testing the torsion angle of a composite hose, including a dial assembly and a pointer assembly;

[0007] The dial assembly includes a base and a dial rotatably provided on one side of the base; the base is connected to one end of the composite hose and can rotate synchronously with one end of the composite hose; a rotation limiting member is provided on the dial, and the rotation limiting member can keep the dial stationary when the base rotates;

[0008] The pointer assembly includes a pointer, and the pointer can rotate synchronously with the base to indicate the torsion angle of one end of the composite hose on the dial.

[0009] Furthermore, the base and the pointer are detachably provided on a blind plate at one end of the composite hose.

[0010] Further, the base is detachably arranged on the blind plate at one end of the composite hose; the pointer is detachably arranged on the base.

[0011] Further, it further includes a first magnet and a second magnet for detachably connecting the base and the pointer to the blind plate.

[0012] Further, it further includes a device for testing the torsion angle of the composite hose, characterized in that the rotation limiting member is a counterweight.

[0013] Further, the counterweight is connected to the dial through a connecting plate, and the counterweight is placed outside the dial.

[0014] Further, the dial assembly further includes a bearing and a fixing block, the inner ring of the bearing is sleeved on the base; the fixing block is arranged on the outer ring of the bearing to fix the dial.

[0015] Further, it further includes a first spacer and a baffle, the first spacer is arranged on the base; the baffle is placed on the end face on one side of the base; the bearing is placed between the first spacer and the baffle.

[0016] Further, the pointer assembly further includes a second spacer, which is arranged between the pointer and the second magnet.

[0017] By adopting the above technical solutions, the following technical effects can be achieved by the present utility model:

[0018] This application provides a device for testing the torsion angle of a composite hose, including a dial assembly and a pointer assembly; the base of the dial assembly and the pointer in the pointer assembly can rotate synchronously with one end of the composite hose, while the dial does not rotate under the action of the rotation limiting member and remains in the initial state; during the process that the pressure of the composite hose reaches the specified value, with the synchronous rotation of the pointer and the non-rotation of the dial, the torsion degree of one end of the composite hose can be intuitively seen, and there is no need for the tester to calculate secondly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front structural schematic diagram of a device for testing the torsion angle of a composite hose according to an embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the back structure of a device for testing the torsion angle of a composite hose according to an embodiment of the present utility model;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of a device for testing the torsion angle of a composite hose;

[0023] Icon: base 1, dial 2, counterweight 3, pointer 4, bearing 5, connecting plate 6, first magnet 7, second magnet 8, fixing block 9, first spacer 11, end plate 12, shaft cylinder 13, second spacer 14. Detailed implementation manners

[0024] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] Combined with Figures 1 to 3 As shown, this embodiment provides a device for testing the torsion angle of a composite hose, including a dial assembly and a pointer assembly;

[0027] The dial assembly includes a base and a dial 2 rotatably provided on one side of the base; the base 1 is connected to one end of the composite hose and can rotate synchronously with one end of the composite hose; a rotation limiting member is provided on the dial 2, and the rotation limiting member can keep the dial 2 stationary when the base 1 rotates;

[0028] The pointer assembly includes a pointer 4, and the pointer 4 can rotate synchronously with the base 1 to indicate the torsion angle of one end of the composite hose on the dial 2.

[0029] The base of the dial assembly and the pointer 4 in the pointer assembly can rotate synchronously with one end of the composite hose, while the dial 2 does not rotate under the action of the rotation limiting member and remains in the initial state; during the process that the pressure of the composite hose reaches the specified value, with the synchronous rotation of the pointer 4 and the non-rotation of the dial 2, the torsion degree of one end of the composite hose can be directly seen, without the need for testers to perform secondary calculations.

[0030] Specifically, in this embodiment, as Figure 3 shown, the base and the pointer are respectively detachably arranged on the blind plate at one end of the composite hose through a first magnet 7 and a second magnet 8; it is convenient for the dial assembly and the pointer assembly to be quickly disassembled and assembled with the blind plate; the rotation limiting member is a counterweight. Of course, in other embodiments, the fixing member can also be other fixing members that can be quickly disassembled and assembled, such as buckles or clips, etc. In other embodiments, the pointer can also be detachably arranged on the base and rotate synchronously with the base.

[0031] In this embodiment, the base 1 is a bearing seat which includes an end plate 12 and a shaft cylinder 13 connected to the end plate 12; the dial assembly further includes a bearing 5, a fixing block 9, a first spacer 11 and a baffle; the angle on the dial 2 is 0 - 360 degrees; the inner ring of the bearing 5 is sleeved on the shaft cylinder 13; the fixing block 9 is arranged on the outer ring of the bearing 5; the dial 2 is arranged on the fixing block 9; the first spacer 11 is arranged on the shaft cylinder 13 and is located between the bearing 5 and the end plate 12; the end plate 12 is arranged on the end face on one side of the base 1 and is used to limit the bearing 5. The pointer assembly further includes a second spacer 14 which is arranged between the pointer 4 and the second magnet 8. The first magnet 7 is connected to the end plate 12. As Figure 1 and Figure 2 shown, the counterweight 3 is connected to the fixing block 9 through a connecting plate 6, and the counterweight 3 is located outside the dial 2; under the action of the gravity of the counterweight 3, the dial 2 is kept in the initial state.

[0032] During the process that the pressure of the composite hose reaches the specified value, the pointer and the base 1 rotate with the blind plate, while the dial 2 is connected to the outer ring of the bearing 5 and can rotate freely on the base 1, but due to being connected to the counterweight 3, under the action of the gravity of the counterweight 3, it will remain in the non-rotating initial state; thus, the scale pointed by the pointer 4 will change, so that the torsion degree of the composite hose can be directly seen.

[0033] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0036] In the present utility model, unless otherwise clearly defined and limited, the terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly defined and limited, the fact that the first feature is "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the fact that the first feature is "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "below", "beneath" and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. A device for testing the torsion angle of a composite hose, characterized in that: It includes a dial assembly and a pointer assembly; The scale plate assembly includes a base and a scale plate rotatably arranged on one side of the base; the base is connected to one end of the composite hose and can rotate synchronously with the one end of the composite hose; a rotation limiting member is arranged on the scale plate, and the rotation limiting member can keep the scale plate from rotating when the base rotates; The pointer assembly comprises a pointer, and the pointer can rotate synchronously with the base to indicate the twisting angle of one end of the composite hose on the dial.

2. The device for testing the torsion angle of a composite hose according to claim 1, characterized in that: The base and the pointer are detachably arranged on a blind plate at one end of the composite hose.

3. The device for testing the torsion angle of a composite hose according to claim 1, characterized in that: The base is detachably arranged on a blind plate at one end of the composite hose; and the pointer is detachably arranged on the base.

4. The device for testing the torsion angle of a composite hose according to claim 2, characterized in that: Also included are a first magnet and a second magnet for enabling the base and the pointer to be detachably connected to the blind plate.

5. The device for testing the torsion angle of a composite hose according to claim 4, characterized in that: The rotation limiting member is a counterweight block.

6. The device for testing the torsion angle of a composite hose according to claim 5, characterized in that: The counterweight block is connected to the scale plate through a connecting plate, and the counterweight block is placed outside the scale plate.

7. The device for testing the torsion angle of a composite hose according to claim 6, characterized in that: The scale plate assembly also includes a bearing and a fixing block. The inner ring of the bearing is sleeved on the base; the fixing block is arranged on the outer ring of the bearing to fix the scale plate.

8. The device for testing the torsion angle of a composite hose according to claim 7, characterized in that: It also includes a first spacer and a baffle, wherein the first spacer is arranged on the base; the baffle is placed on the end surface of one side of the base; and the bearing is placed between the first spacer and the baffle.

9. The device for testing the torsion angle of a composite hose according to claim 4, characterized in that: The pointer assembly also includes a second spacer sleeve, which is arranged between the pointer and the two magnets.

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