Anti-failure oil drain valve driving device

Abstract

The utility model discloses an anti-failure oil drain valve driving device which comprises a valve block, an oil drain valve connecting rod and a push-pull electromagnet, wherein the oil drain valve connecting rod is movably connected to the valve block, and the push-pull electromagnet is used for driving the oil drain valve connecting rod to act. The oil drain valve is characterized by further comprising an anti-failure mechanism which is connected to the oil drain valve connecting rod and plays a role in limiting the position of the oil drain valve connecting rod. The failure prevention mechanism comprises a second connecting screw rod connected to the oil drain valve connecting rod and a second electromagnet connected to the second connecting screw rod. Due to the arrangement of the anti-failure mechanism, after the oil drain valve is opened through the push-pull electromagnet, the position of the oil drain valve connecting rod is fixed through the anti-failure mechanism, the push-pull electromagnet can be powered off after being fixed, and the situation that the push-pull electromagnet fails due to the too high temperature after working for a long time and continuously rising the temperature is avoided.

Description

Technical Field

[0001] The utility model relates to an oil drain valve, in particular to a failure-proof oil drain valve driving device. Background Art

[0002] In order to achieve automatic lifting and lowering, existing electric jacks are equipped with electric pumps and mechanisms for automatically opening the oil drain valve. The existing mechanism for automatically opening the oil drain valve is to rotate the oil drain valve connecting rod by using a push-pull electromagnet. During the rotation process, the oil drain valve connecting rod applies a downward squeezing force to the oil drain valve, pushing the oil drain valve downward and then opening the oil drain valve to return oil. Its driving mechanism uses a push-pull electromagnet. However, during the oil return process, the push-pull electromagnet is in a working state for a long time, causing the temperature to rise. Once the temperature of the electromagnet is too high, it will fail. Once the electromagnet fails, it cannot push the oil drain valve connecting rod to keep it in place. Once the position of the oil drain valve connecting rod cannot be fixed, it will not be able to continuously apply squeezing force to the oil drain valve, causing the oil drain valve to close and unable to return oil. To this end, a failure-proof oil drain valve driving device is proposed. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and to provide a failure-proof oil drain valve driving device.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a failure-proof oil drain valve driving device, including a valve block, an oil drain valve connecting rod movably connected to the valve block, and a push-pull electromagnet for driving the oil drain valve connecting rod to move; it is characterized in that it also includes an anti-failure mechanism connected to the oil drain valve connecting rod to limit the position of the oil drain valve connecting rod; the anti-failure mechanism includes a connecting screw 2 connected to the oil drain valve connecting rod and an electromagnet 2 connected to the connecting screw 2.

[0005] Further preferably, a second spring is installed between the second connecting screw and the oil drain valve connecting rod.

[0006] Further preferably, a connecting screw rod 1 for movably connecting the connecting rod of the oil drain valve is installed on the valve block.

[0007] Further preferably, the oil drain valve connecting rod is provided with an oil drain valve pressure plate for pushing the oil drain valve to operate.

[0008] Further preferably, the push-pull electromagnet is connected to a push-pull rod movably connected to the oil drain valve connecting rod, the push-pull rod is provided with a spring limit platform, the push-pull rod is fitted with a spring 1, and the spring 1 is located between the spring limit platform and the push-pull electromagnet.

[0009] The beneficial effects of the present invention are as follows: through the setting of the anti-failure mechanism, after the oil drain valve is opened by the push-pull electromagnet, the position of the oil drain valve connecting rod is fixed by the anti-failure mechanism, and the power to the push-pull electromagnet can be cut off after fixation, thereby preventing the push-pull electromagnet from failing due to excessive temperature after long-term operation and continuous heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attachment Figure 1 It is a structural diagram of the utility model;

[0011] Attachment Figure 2 It is a schematic diagram of the local structure of the utility model from another perspective.

[0012] Legend: 1. Valve block; 11. Connecting screw 1; 2. Oil drain valve connecting rod; 21. Oil drain valve pressure plate; 3. Push-pull electromagnet; 31. Push-pull rod; 32. Spring limiter; 33. Spring 1; 4. Anti-failure mechanism; 41. Connecting screw 2; 42. Electromagnet 2; 43. Spring 2. DETAILED DESCRIPTION

[0013] Next, we will further explain the failure-proof oil drain valve driving device of the present invention with reference to the accompanying drawings.

[0014] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0015] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; 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 elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0016] See Figure 1-2 As shown in the figure, a failure-proof oil drain valve driving device includes a valve block 1, an oil drain valve connecting rod 2 movably connected to the valve block 1, and a push-pull electromagnet 3 for driving the oil drain valve connecting rod 2 to move. The device is characterized by further including a failure-proof mechanism 4 connected to the oil drain valve connecting rod 2 to limit the position of the oil drain valve connecting rod 2. The failure-proof mechanism 4 includes a second connecting screw 41 connected to the oil drain valve connecting rod 2 and a second electromagnet 42 connected to the second connecting screw 41.

[0017] By setting the anti-failure mechanism 4, after the oil drain valve is opened by the push-pull electromagnet 3, the position of the oil drain valve connecting rod 2 is fixed by the anti-failure mechanism 4. After fixing, the push-pull electromagnet 3 can be powered off to avoid failure due to excessive temperature after the push-pull electromagnet 3 continues to heat up after working for a long time.

[0018] In one embodiment, a second spring 43 is further installed between the second connecting screw 41 and the oil drain valve connecting rod 2; through the setting of the second spring 43, a downward thrust is generated on the second connecting screw 41 and the second electromagnet 42, so that the bottom surface of the second electromagnet 42 is always in contact with the valve block 1, ensuring that the second electromagnet 42 can be fixedly connected to the valve block 1 through magnetic attraction after being energized.

[0019] In one embodiment, the valve block 1 is provided with a connecting screw 11 for movably connecting the oil drain valve connecting rod 2. By setting the connecting screw 11, the oil drain valve connecting rod 2 is movably connected, so that the oil drain valve connecting rod 2 can rotate with the connecting screw 11 as the base point.

[0020] In one embodiment, the drain valve connecting rod 2 is provided with an oil drain valve pressure plate 21 for pushing the oil drain valve to operate; through the setting of the oil drain valve pressure plate 21, during the rotation of the oil drain valve connecting rod 2, the oil drain valve pressure plate 21 is driven to form a downward squeezing force on the oil drain valve to push the oil drain valve to open.

[0021] In one embodiment, the push-pull electromagnet 3 is connected to a push-pull rod 31 which is movably connected to the oil drain valve connecting rod 2. A spring limit platform 32 is provided on the push-pull rod 31. A spring 1 33 is mounted on the push-pull rod 31, and the spring 1 33 is located between the spring limit platform 32 and the push-pull electromagnet 3. Through the setting of spring 1 33, when the oil drain valve is closed, after the power to the electromagnet is disconnected, the reset force of the spring drives the push-pull rod 31, electromagnet 2 42, the oil drain valve connecting rod 2 and the oil drain valve pressure plate 21 to reset, and no downward squeezing force is formed on the oil drain valve.

[0022] When the utility model is in use: when it is necessary to open the oil release valve, the push-pull electromagnet 3 is energized first. After the push-pull electromagnet 3 is energized, the push-pull rod 31 is pulled. The push-pull rod 31 drives the oil release valve connecting rod 2 to rotate with the connecting screw 11 as the base point. During the rotation, the oil release valve pressure plate 21 is driven to form a downward squeeze on the oil release valve, opening the oil release valve to return oil. After the push-pull rod 31 moves to the final position, the electromagnet 2 42 is energized. After the electromagnet 2 42 is energized, it magnetically attracts the valve block 1. Then, after a set time interval, the power supply to the push-pull electromagnet 3 is disconnected. At this time, the position of the oil release valve connecting rod 2 is fixed by the electromagnet 2 42, and the oil release valve is continuously in the open state.

[0023] When the oil drain valve needs to be closed, the power supply to the electromagnet 2 42 is disconnected. After the power is cut off, the electromagnet 2 42 no longer magnetically attracts the valve block 1. At this time, the reset force of the spring 1 33 drives the push-pull rod 31 to reset. During the reset process, the push-pull rod 31, the electromagnet 2 42, the oil drain valve connecting rod 2 and the oil drain valve pressure plate 21 are reset. At this time, the oil drain valve is closed.

[0024] The protection scope of the present invention is not limited to the above embodiment and its variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment fall within the protection scope of the present invention.

Claims

1. A failure-proof oil drain valve driving device, comprising a valve block (1), an oil drain valve connecting rod (2) movably connected to the valve block (1), and a push-pull electromagnet (3) for driving the oil drain valve connecting rod (2) to move; wherein the device is characterized in that It also includes an anti-failure mechanism (4) connected to the oil drain valve connecting rod (2) and limiting the position of the oil drain valve connecting rod (2); the anti-failure mechanism (4) includes a second connecting screw (41) connected to the oil drain valve connecting rod (2) and a second electromagnet (42) connected to the second connecting screw (41).

2. The anti-failure oil drain valve drive device according to claim 1, characterized in that: A second spring (43) is also installed between the second connecting screw (41) and the oil drain valve connecting rod (2).

3. The failure-proof oil drain valve drive device according to claim 1, characterized in that: The valve block (1) is provided with a connecting screw (11) for movably connecting the connecting rod (2) of the oil drain valve.

4. The anti-failure oil drain valve drive device according to claim 3, characterized in that: The oil drain valve connecting rod (2) is provided with an oil drain valve pressing plate (21) for pushing the oil drain valve to operate.

5. The failure-proof oil drain valve drive device according to claim 1, characterized in that: The push-pull electromagnet (3) is connected to a push-pull rod (31) movably connected to the oil drain valve connecting rod (2), and the push-pull rod (31) is provided with a spring limit platform (32). The push-pull rod (31) is provided with a spring 1 (33), and the spring 1 (33) is located between the spring limit platform (32) and the push-pull electromagnet (3).

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