Endurance test device for leather cup

Abstract

A leather cup durability test device comprises a sleeve, a guide rod, a lock ring and a counting sensor. A valve block is arranged on the upper section in the sleeve, a telescopic device is arranged above the sleeve, an oil injection pipe communicated with the interior of the sleeve is arranged on the side wall of the sleeve and located below the valve block, the oil injection pipe is connected with a liquid level detection component, and a detachable check ring is arranged at the lower end of the sleeve; the guide rod is coaxially arranged in the sleeve in a penetrating mode, a tubular cavity is formed between the outer wall of the guide rod and the inner wall of the sleeve, the upper end of the guide rod is connected to the valve block, and the lower end of the guide rod is used for being connected with an inner sealing sleeve of the leather cup. The locking ring is used for pressing the upper end of the inner sealing sleeve of the leather cup on the guide rod, and the annular cavity between the inner sealing sleeve and the outer sealing sleeve of the connected leather cup is communicated with the tubular cavity. According to the scheme, the use working condition of the leather cup can be more truly restored, and the relative movement times between the inner sealing sleeve and the outer sealing sleeve are automatically recorded, so that the service life of the leather cup is more accurately judged.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber parts durability testing devices, in particular to a leather cup durability testing device. Background Art

[0002] like Figure 6 The rubber cup shown includes an inner sealing sleeve and an outer sealing sleeve coaxially arranged, one end of the inner sealing sleeve is sealed and connected to the outer sealing sleeve, and there is an annular cavity between the inner sealing sleeve and the outer sealing sleeve. This type of cup is often used for sealing at the joint of hole-shaft parts, and the shaft and hole sealed by this cup have axial relative movement, so during use, the inner sealing sleeve and the outer sealing sleeve will also move relative to each other in the axial direction, and the closed end of the two will be constantly folded, which can easily cause the cup to rupture. Therefore, after this type of sealing product is produced, in order to verify its service life, it is usually subjected to durability verification, and the service life of the cup is verified by simulating the use conditions of the cup for a long time. However, due to the special structure of this type of cup, there is currently no dedicated durability verification device, so it is necessary to design a durability verification device for this cup structure. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a leather cup durability testing device for verifying the life of a leather cup having an inner sealing sleeve and an outer sealing sleeve structure. The device can more realistically restore the use conditions of the leather cup and automatically record the number of relative movements between the inner sealing sleeve and the outer sealing sleeve, thereby more accurately judging the service life of the leather cup.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A leather cup durability testing device comprises a sleeve, a guide rod, a locking ring and a counting sensor.

[0006] A valve block is provided at the upper section of the interior of the casing, a sliding sealing structure is provided between the outer wall of the valve block and the inner wall of the casing, a telescopic device is provided above the casing for driving the valve block to move along the axis of the casing, an oil filling pipe communicating with the interior of the casing is provided on the side wall of the casing, the oil filling pipe is located below the valve block, a liquid level detection component is connected to the oil filling pipe, and a detachable retaining ring is provided at the lower end of the casing for pressing the top edge of the outer sealing sleeve of the leather cup against the bottom of the casing;

[0007] The guide rod is coaxially arranged in the sleeve, a tubular chamber is formed between the outer wall of the guide rod and the inner wall of the sleeve, the upper end of the guide rod is connected to the valve block, and the lower end of the guide rod is used to connect the inner sealing sleeve of the leather cup;

[0008] The lock ring is used to press the upper end of the inner sealing sleeve of the leather cup against the guide rod. After the leather cup is connected, the annular chamber between the inner sealing sleeve and the outer sealing sleeve is communicated with the tubular chamber.

[0009] The counting sensor is used to detect the number of times the valve block moves in the casing.

[0010] The beneficial effects of the utility model are as follows: the outer sealing sleeve and the inner sealing sleeve of the leather cup are connected respectively by using a sleeve and a guide rod, and the inner sealing sleeve is driven by the guide rod to move back and forth relative to the outer sealing sleeve to restore the use state of the leather cup; by filling liquid in the annular chamber and the tubular chamber, and using a liquid level detection component to monitor the liquid level in real time, the time of damage of the leather cup can be detected in time, thereby ensuring the authenticity of the data collected by the counting sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0012] Figure 1 Shown is a schematic diagram of the overall structure of the present application.

[0013] Figure 2 A schematic structural diagram of a preferred embodiment of the present application is shown.

[0014] Figure 3 A structural schematic diagram of another side of a preferred embodiment of the present application is shown.

[0015] Figure 4 A cross-sectional view of the sleeve, guide rod and leather cup in an assembled state is shown.

[0016] Figure 5 Shows Figure 4 A partial enlarged view of point A in the middle.

[0017] Figure 6 A cross-sectional view of the cup verified by the present application is shown,

[0018] Markings in the figure: sleeve-1, valve block-11, oil filling pipe-12, retaining ring-13, guide block-14, guide rod-2, locking ring-3, counting sensor-4, telescopic device-5, liquid level sensor-61, heating device-7, container-71, stirring shaft-72. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] like Figures 2 to 5 As shown, a leather cup durability test device includes: a sleeve 1, a guide rod 2, a locking ring 3 and a counting sensor 4.

[0021] A valve block 11 is provided at the upper section of the interior of the sleeve 1, and a sliding sealing structure is provided between the outer wall of the valve block 11 and the inner wall of the sleeve 1. A telescopic device 5 is provided above the sleeve 1 for driving the valve block 11 to move along the axis of the sleeve 1. An oil filling pipe 12 connected to the interior of the sleeve 1 is provided on the side wall of the sleeve 1, and the oil filling pipe 12 is located below the valve block 11. The oil filling pipe 12 is connected to a liquid level detection component. A detachable retaining ring 13 is provided at the lower end of the sleeve 1 for pressing the top edge of the outer sealing sleeve of the leather cup to the bottom of the sleeve 1. Specifically, the retaining ring 13 is connected to the bottom of the sleeve 1 with screws.

[0022] The guide rod 2 is coaxially arranged in the sleeve 1, and a tubular chamber is formed between the outer wall of the guide rod 2 and the inner wall of the sleeve 1. The upper end of the guide rod 2 is connected to the valve block 11, and the lower end of the guide rod 2 is used to connect to the inner sealing sleeve of the leather cup.

[0023] The locking ring 3 is used to press the upper end of the inner sealing sleeve of the leather cup against the guide rod 2. After the leather cup is connected, the annular chamber between the inner sealing sleeve and the outer sealing sleeve is communicated with the tubular chamber.

[0024] The counting sensor 4 is used to detect the number of times the valve block 11 moves in the casing 1 .

[0025] During the test, the guide rod 2 passes through the inner sealing sleeve of the leather cup, the upper end of the inner sealing sleeve is fixed to the guide rod 2 by using the locking ring 3, and the top edge of the outer sealing sleeve of the leather cup is pressed against the bottom of the sleeve 1 by using the retaining ring 13, so that the annular chamber between the inner sealing sleeve and the outer sealing sleeve is connected with the tubular chamber to form an integral sealed chamber; liquid is injected into the annular chamber and the tubular chamber through the oil filling pipe 12, the telescopic device 5 drives the valve block 11 to move back and forth along the axis of the sleeve 1, and the counting sensor 4 starts counting; the movement of the valve block 11 will drive the guide rod 2 to move together, thereby driving the inner sealing sleeve and the outer sealing sleeve of the leather cup to move relative to each other along the axial direction, so as to achieve the purpose of simulating the use condition of the leather cup; during the test, when the valve block 11 moves downward, the volume of the tubular chamber will gradually decrease, The volume of the annular chamber will increase accordingly; when the valve block 11 moves upward, the volume of the tubular chamber gradually increases, while the volume of the annular chamber will decrease accordingly; therefore, during normal operation, the volume of the liquid inside the tubular chamber and the annular chamber will not change significantly, and the liquid level detection component will not detect any abnormality in this state, and the device can operate normally; during the test, when the leather cup is damaged, the liquid inside the tubular chamber and the annular chamber will leak, causing the volume of the liquid inside the tubular chamber and the annular chamber to decrease, thereby causing the liquid level to drop. When the liquid level is lower than the range that the liquid level detection component can detect, it can be displayed or alarmed by the liquid level detection component. At this point, the service life of the leather cup can be inferred by the number of times the valve block 11 moves monitored by the counting sensor 4.

[0026] Preferably, Figure 4As shown, a guide block 14 is provided inside the sleeve 1 and is located below the valve block 11. The guide rod 2 passes through the guide block 14 to ensure the coaxial accuracy between the guide rod 2 and the sleeve 1, thereby ensuring the coaxial accuracy between the inner sealing sleeve and the outer sealing sleeve of the leather cup to eliminate the influence of the accuracy of the test device on the test results. The guide block 14 has a vertical through-channel for circulating liquid.

[0027] Preferably, the telescopic device 5 is a linear cylinder or a linear motor, such as Figure 2 , Figure 3 As shown, the counting sensor 4 can be arranged above the main shaft of the telescopic device 5 to detect the number of up and down movements of the main shaft of the linear cylinder or the linear motor.

[0028] Preferably, Figure 3 As shown, the liquid level detection component is a liquid level sensor 61, which is arranged on the side wall of a conduit, and the lower end of the conduit is connected to the oil filling pipe 12. When the liquid level is within the detection range of the liquid level sensor 61, the liquid level sensor 61 can transmit a signal to the device terminal, and the signal can be used as a basis for judging the shutdown and alarm of the device.

[0029] Preferably, the liquid level detection component is a glass tube, the lower end of which is connected to the oil filling pipe 12, so as to directly visually observe the liquid level height.

[0030] Preferably, Figure 2 , Figure 3 As shown, a heating device 7 is provided below the sleeve 1, and a container 71 is provided above the sleeve 1. The container 71 is filled with a medium that is the same as the working environment of the leather cup. During the test, the leather cup is immersed in the medium, and the heating device 7 is used to heat the medium in the container 71 to a predetermined temperature, so as to more realistically simulate the use environment of the leather cup and improve the authenticity of the durability test.

[0031] Further preferably, Figure 2 , Figure 3 As shown, a stirring shaft 72 is provided in the container 71 and is driven by a motor to prevent the medium in the container 71 from settling or solidifying.

[0032] Preferably, Figure 1 As shown, the leather cup durability test device also includes a cabinet and a dust cover to improve the safety of the device operation and ensure the cleanliness of the device operation environment.

[0033] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A leather cup durability test device, characterized in that: include: A sleeve (1), wherein a valve block (11) is provided at the upper section of the interior thereof, a sliding sealing structure is provided between the outer wall of the valve block (11) and the inner wall of the sleeve (1), a telescopic device (5) is provided above the sleeve (1) for driving the valve block (11) to move along the axis of the sleeve (1), a side wall of the sleeve (1) is provided with an oil filling pipe (12) connected to the interior thereof, the oil filling pipe (12) is located below the valve block (11), a liquid level detection component is connected to the oil filling pipe (12), and a detachable retaining ring (13) is provided at the lower end of the sleeve (1) for pressing the top edge of the outer sealing sleeve of the leather cup against the bottom of the sleeve (1); A guide rod (2) is coaxially arranged in the sleeve (1), a tubular chamber is formed between the outer wall of the guide rod (2) and the inner wall of the sleeve (1), the upper end of the guide rod (2) is connected to the valve block (11), and the lower end of the guide rod (2) is used to connect to the inner sealing sleeve of the leather cup; A lock ring (3) is used to press the upper end of the inner sealing sleeve of the leather cup against the guide rod (2), so that after the leather cup is connected, the annular chamber between the inner sealing sleeve and the outer sealing sleeve is communicated with the tubular chamber; The counting sensor (4) is used to detect the number of times the valve block (11) moves in the sleeve (1).

2. A leather cup durability testing device according to claim 1, characterized in that: A guide block (14) is provided inside the sleeve (1) and is located below the valve block (11). The guide rod (2) passes through the guide block (14). The guide block (14) has a vertically penetrating passage.

3. The leather cup durability testing device according to claim 1, characterized in that: The telescopic device (5) is a linear cylinder or a linear motor.

4. A leather cup durability testing device according to claim 1, characterized in that: The liquid level detection component is a liquid level sensor (61), which is arranged on the side wall of a conduit, and the lower end of the conduit is connected to the oil filling pipe (12).

5. The leather cup durability testing device according to claim 1, characterized in that: The liquid level detection component is a glass tube, the lower end of which is connected to the oil filling pipe (12).

6. The leather cup durability testing device according to claim 1, characterized in that: A heating device (7) is provided below the sleeve (1), and a container (71) is provided above the sleeve (1). The container (71) contains a medium that is the same as the working environment of the leather cup. During the test, the leather cup is immersed in the medium.

7. A leather cup durability testing device according to claim 6, characterized in that: A stirring shaft (72) is provided in the container (71) and is driven by a motor.

8. The leather cup durability testing device according to claim 6, characterized in that: Also includes cabinet and dust cover.

Images