Pressure switch for controlling pressure balance of oil pump

Abstract

The utility model discloses a pressure switch for controlling pressure balance of an oil pump, which belongs to the technical field of oil pump pressure switches and comprises an oil pump body, an oil pump connector is fixedly connected to the top of the oil pump body, and a pressure switch connector is inserted in the middle of the oil pump connector. The top of the pressure switch connecting port is fixedly connected with an oil pump pressure balance switch, locking mechanisms are inserted into the left side and the right side of the oil pump connecting port, the upper end of the pressure switch connecting port is sleeved with a sealing mechanism, and the oil pump body and the oil pump pressure balance switch are conveniently connected through the oil pump connecting port and the pressure switch connecting port; through the oil pump pressure balance switch, pressure balance in the oil pump can be guaranteed conveniently, through the locking mechanism, the oil pump body and the oil pump pressure balance switch can be locked conveniently after being inserted, through the sealing mechanism and double-layer sealing, higher pressure can be borne, and stability can be kept even in the high-pressure environment.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pump pressure switches, in particular to a pressure switch for controlling the pressure balance of an oil pump. Background Art

[0002] The pressure switch that controls the oil pump pressure balance is a device used to control the oil pump pressure. It is widely used in hydraulic systems, lubrication systems and other fields. In the oil pump system, in order to ensure the normal operation of the system, the oil pump pressure needs to be controlled to avoid overpressure or underpressure.

[0003] In the announcement number CN212454801U, a pressure switch for controlling the start of an oil pump is disclosed, comprising a pressure switch body, a disassembly mechanism and a protection mechanism, wherein a switch connecting pipe is fixedly connected to one side surface of the pressure switch body, the disassembly mechanism comprises an oil pump device, an oil pump connecting pipe is fixedly connected to one side surface of the oil pump device, a connecting pipe groove is provided on one side surface of the oil pump connecting pipe, a first spring is connected to the inner wall surface of the connecting pipe groove, a transverse plate is connected to the other side surface of the first spring, a side plate is fixedly connected to one side surface of the transverse plate, and a connecting pipe groove is provided on the inner wall surface relative to the outer surface of the side plate. There is a slide groove, and through the designed disassembly and assembly mechanism, the switch connecting pipe and the oil pump connecting pipe can be quickly installed, which effectively saves operation time and makes disassembly and installation more convenient. At the same time, the sealing gasket inside it can prevent the internal gas from leaking, plays a barrier role, and improves product efficiency. However, when the above device is in use, only the sealing gasket is used to seal the connection between the oil pump and the pressure switch, and the sealing effect is limited. When the oil pump pressure is too large, it is easy to cause the hydraulic oil in the oil pump to leak, thereby affecting the use of the oil pump. Therefore, it is necessary to provide a new pressure switch for controlling the pressure balance of the oil pump to solve the above technical problems. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide a pressure switch for controlling the pressure balance of the oil pump, which can solve the problem that the existing device only uses a sealing gasket to seal the connection between the oil pump and the pressure switch, and the sealing effect is limited. When the oil pump pressure is too high, it is easy to cause the hydraulic oil in the oil pump to leak out, thereby affecting the use of the oil pump. In order to solve the above technical problems, the utility model provides a pressure switch for controlling the pressure balance of the oil pump, which adopts the following technical solutions: A pressure switch for controlling the pressure balance of the oil pump, including:

[0005] An oil pump body, wherein an oil pump connection port is fixedly connected to the top of the oil pump body, a pressure switch connection port is inserted in the middle of the oil pump connection port, an oil pump pressure balance switch is fixedly connected to the top of the pressure switch connection port, locking mechanisms are inserted on the left and right sides of the oil pump connection port, and a sealing mechanism is sleeved on the upper end of the pressure switch connection port.

[0006] By adopting the above technical scheme, by providing an oil pump connecting port and a pressure switch connecting port, it is convenient to connect the oil pump body with the oil pump pressure balance switch. By providing the oil pump pressure balance switch, it is convenient to ensure the pressure balance inside the oil pump. By providing a locking mechanism, it is convenient to lock the oil pump body and the oil pump pressure balance switch after insertion, and the convenience of disassembly and maintenance of the device is improved. By providing a sealing mechanism and double-layer sealing, it can withstand higher pressure and remain stable even in high-pressure environments, thereby improving the reliability of the sealing of the device.

[0007] Optionally, the locking mechanism includes a connecting rod inserted into the oil pump connecting port, the top of the connecting rod is fixedly connected to a fixing cap, the outer surface of the connecting rod is sleeved with a spring, the upper end of the spring is fixedly connected to the fixing cap, and the lower end is fixedly connected to the oil pump connecting port.

[0008] By adopting the above technical solution, by providing a connecting rod and a spring, the oil pump body and the oil pump pressure balance switch can be locked after being inserted, and by providing a fixing cap, the spring can be connected and plugged in and out conveniently.

[0009] Optionally, the oil pump connection port and the sealing mechanism are both provided with a socket adapted to the connecting rod.

[0010] By adopting the above technical solution, a plug hole compatible with the connecting rod is provided through the oil pump connection port and the sealing mechanism, so that the oil pump body and the oil pump pressure balance switch can be locked through the plug hole.

[0011] Optionally, the sealing mechanism includes a sealing ring sleeved on the pressure switch connection port, a sealing sleeve is installed at the bottom of the pressure switch connection port, and sealing blocks are fixedly connected to the left and right sides of the sealing sleeve.

[0012] By adopting the above technical solution, a sealing ring is provided to facilitate sealing the top of the oil pump connection port and the pressure switch connection port, thereby preventing excessive oil pump pressure during use from causing hydraulic oil to flow out. By providing a sealing block and a sealing sleeve, it is convenient to connect the slot opened in the inner cavity of the oil pump connection port, and to seal the internal gap after the pressure switch connection port is inserted. Through double-layer sealing, it can withstand higher pressure and remain stable even in high-pressure environments, thereby improving the reliability of the sealing of the device.

[0013] Optionally, the sealing sleeve and the sealing block are made of rubber.

[0014] By adopting the above technical solution, the sealing sleeve and the sealing block are made of rubber, which has good elasticity and sealing performance, can effectively prevent the leakage of liquid and gas, and the rubber has good wear resistance and aging resistance, a long service life, and is convenient for limited sealing.

[0015] Optionally, the diameter of the sealing ring is larger than the oil pump connection port.

[0016] By adopting the above technical solution, the diameter of the sealing ring is larger than the oil pump connection port, so that the contact area between the sealing ring and the connection port can be increased, the sealing performance can be improved, and the possibility of leakage can be reduced.

[0017] Optionally, the oil pump connection port is provided with a slot adapted to the sealing sleeve and the sealing block, and the oil pump connection port, the sealing sleeve and the sealing block form a snap-fit ​​connection mechanism.

[0018] By adopting the above technical solution, the oil pump connecting port, the sealing sleeve and the sealing block form a snap-fit ​​connection mechanism, which facilitates the limiting of the oil pump connecting port and the pressure switch connecting port.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] The present application is provided with a sealing mechanism, which facilitates the sealing of the top of the oil pump connection port and the pressure switch connection port through a sealing ring, thereby preventing excessive oil pump pressure during use from causing hydraulic oil to flow out. By providing a sealing block and a sealing sleeve, it is convenient to connect the slot opened in the inner cavity of the oil pump connection port, and to seal the internal gap after the pressure switch connection port is inserted. The double-layer sealing can withstand higher pressure and remain stable even in a high-pressure environment, thereby improving the reliability of the sealing of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the use state of the utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of the components of the utility model;

[0024] Figure 3 This is an enlarged view of point A of the utility model;

[0025] Figure 4 This is a schematic diagram of the sealing mechanism structure of the utility model.

[0026] Explanation of the reference numerals: 1. Oil pump body; 2. Oil pump connection port; 3. Pressure switch connection port; 4. Oil pump pressure balance switch; 5. Locking mechanism; 501. Connecting rod; 502. Fixing cap; 503. Spring; 6. Sealing mechanism; 601. Sealing ring; 602. Sealing sleeve; 603. Sealing block. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 The utility model is described in further detail.

[0028] Example 1, reference Figure 1 , Figure 2 and Figure 3 The utility model discloses a pressure switch for controlling the pressure balance of an oil pump, which can solve the problem of locking the pressure switch for controlling the pressure balance of an oil pump during use, and comprises:

[0029] An oil pump body 1, the top of the oil pump body 1 is fixedly connected with an oil pump connection port 2, the middle of the oil pump connection port 2 is inserted with a pressure switch connection port 3, the top of the pressure switch connection port 3 is fixedly connected with an oil pump pressure balance switch 4, the left and right sides of the oil pump connection port 2 are inserted with locking mechanisms 5, the upper end of the pressure switch connection port 3 is sleeved with a sealing mechanism 6, the locking mechanism 5 includes a connecting rod 501 inserted on the oil pump connection port 2, the top of the connecting rod 501 is fixedly connected with a fixing cap 502, the outer surface of the connecting rod 501 is sleeved with a spring 503, the upper end of the spring 503 is fixedly connected to the fixing cap 502, and the lower end is fixedly connected to the oil pump connection port 2, and the oil pump connection port 2 and the sealing mechanism 6 are both provided with a socket adapted to the connecting rod 501.

[0030] Working principle: the oil pump body 1 is convenient for conveying and pressurizing the oil; the oil pump connection port 2 and the pressure switch connection port 3 are convenient for connecting the oil pump body 1 with the oil pump pressure balance switch 4; the oil pump pressure balance switch 4 is convenient for ensuring the pressure balance inside the oil pump; the locking mechanism 5 is convenient for locking the oil pump body 1 and the oil pump pressure balance switch 4 after they are inserted, and improves the convenience of disassembly and maintenance of the device; the sealing mechanism 6 can withstand higher pressure through double-layer sealing, and can remain stable even in a high-pressure environment, thereby improving the reliability of the sealing of the device; when in use, after the pressure switch connection port 3 on the oil pump pressure balance switch 4 is inserted into the oil pump connection port 2 on the oil pump body 1, the oil pump body 1 and the oil pump pressure balance switch 4 are locked after they are inserted through the connecting rod 501 and the spring 503; by providing a fixing cap 502, the spring 503 is convenient for connection and plugging and unplugging, thereby locking it to prevent it from falling off during use.

[0031] Example 2, reference Figure 1 and Figure 4In this embodiment, the problem that the existing device only uses a sealing gasket to seal the connection between the oil pump and the pressure switch, and the sealing effect is limited. When the oil pump pressure is too high, it is easy to cause the hydraulic oil in the oil pump to leak out, thereby affecting the use of the oil pump. The pressure switch for controlling the pressure balance of the oil pump also includes a sealing mechanism 6 including a sealing ring 601 sleeved on the pressure switch connection port 3, a sealing sleeve 602 is installed at the bottom of the pressure switch connection port 3, and sealing blocks 603 are fixedly connected to the left and right sides of the sealing sleeve 602. The sealing sleeve 602 and the sealing block 603 are made of rubber, and the diameter of the sealing ring 601 is larger than the oil pump connection port 2. The oil pump connection port 2 is provided with a card groove adapted to the sealing sleeve 602 and the sealing block 603, and the oil pump connection port 2 and the sealing sleeve 602 and the sealing block 603 form a card connection mechanism.

[0032] Working principle: After insertion, the sealing ring 601 is used to seal the top of the oil pump connection port 2 and the pressure switch connection port 3, so as to avoid excessive oil pump pressure during use, which may cause hydraulic oil to flow out. The sealing block 603 and the sealing sleeve 602 are provided to facilitate connection with the slot opened in the inner cavity of the oil pump connection port 2, so as to facilitate sealing of the internal gap after the pressure switch connection port 3 is inserted. The double-layer sealing can withstand higher pressure and remain stable even in high-pressure environments, thereby improving the reliability of the sealing of the device.

[0033] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pressure switch for controlling the pressure balance of an oil pump, characterized in that: include, An oil pump body (1), wherein the top of the oil pump body (1) is fixedly connected to an oil pump connection port (2), a pressure switch connection port (3) is inserted in the middle of the oil pump connection port (2), an oil pump pressure balance switch (4) is fixedly connected to the top of the pressure switch connection port (3), locking mechanisms (5) are inserted on the left and right sides of the oil pump connection port (2), and a sealing mechanism (6) is sleeved on the upper end of the pressure switch connection port (3).

2. A pressure switch for controlling oil pump pressure balance according to claim 1, characterized in that: The locking mechanism (5) comprises a connecting rod (501) inserted into the oil pump connection port (2), the top of the connecting rod (501) being fixedly connected to a fixing cap (502), the outer surface of the connecting rod (501) being sleeved with a spring (503), the upper end of the spring (503) being fixedly connected to the fixing cap (502), and the lower end of the spring (503) being fixedly connected to the oil pump connection port (2).

3. A pressure switch for controlling oil pump pressure balance according to claim 2, characterized in that: The oil pump connection port (2) and the sealing mechanism (6) are both provided with a plug hole that is compatible with the connecting rod (501).

4. A pressure switch for controlling oil pump pressure balance according to claim 1, characterized in that: The sealing mechanism (6) comprises a sealing ring (601) sleeved on the pressure switch connection port (3), a sealing sleeve (602) is installed at the bottom of the pressure switch connection port (3), and sealing blocks (603) are fixedly connected to the left and right sides of the sealing sleeve (602).

5. A pressure switch for controlling oil pump pressure balance according to claim 4, characterized in that: The sealing sleeve (602) and the sealing block (603) are made of rubber.

6. A pressure switch for controlling oil pump pressure balance according to claim 4, characterized in that: The diameter of the sealing ring (601) is larger than the oil pump connection port (2).

7. A pressure switch for controlling oil pump pressure balance according to claim 4, characterized in that: The oil pump connection port (2) is provided with a clamping groove matched with the sealing sleeve (602) and the sealing block (603); the oil pump connection port (2), the sealing sleeve (602) and the sealing block (603) form a clamping connection mechanism.

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