Manual pump oil guide valve facilitating pressure relief

Abstract

The utility model belongs to the technical field of manual pumps, and particularly relates to a manual pump oil guide valve convenient for pressure relief, which comprises a valve body, a pump plug, a pressure relief mechanism and a control mechanism. The valve body is provided with a valve sleeve, an upper oil guide hole and an upper flow channel. The pump plug is provided with a plug sleeve, a lower oil guide hole, a lower flow channel and an oil inlet hole. The pressure relief mechanism comprises a pressure relief handle, a pressure relief top column and a pressure relief spring. The control mechanism comprises a steel ball, a plunger valve element, an unloading valve element and a valve element spring. According to the manual pump oil guide valve facilitating pressure relief, by arranging the pressure relief mechanism composed of the pressure relief handle, the pressure relief jacking column and the pressure relief spring, an operator only needs to pull the pressure relief handle, rapid pressure relief can be achieved, complex multi-step operation does not need to be conducted, the working efficiency is improved, and the safety risk under the emergency situation is also reduced; the valve body is provided with a plurality of uniformly distributed upper oil guide holes, and the pump plug is provided with a plurality of inclined lower oil guide holes, so that the oil guide area is increased, the oil guide efficiency is improved, and the working performance of the manual pump is more stable.

Description

Technical Field

[0001] This utility model belongs to the field of manual pump technology, and in particular relates to a manual pump oil guide valve that facilitates pressure relief. Background Technology

[0002] Traditional manual pump oil valves designed for easy pressure relief often face the problem of inconvenient pressure release during use. Existing pressure relief structures are complex in design, containing multiple components, making assembly difficult and costly. For example, some manual pump oil valves designed for easy pressure relief require multiple gears, levers, and other transmission components to achieve the pressure relief function, which not only increases the size and weight of the product but also increases the probability of failure.

[0003] Furthermore, the operation of traditional manual pump pilot valves for easy pressure relief is rather cumbersome. When pressure relief is needed, operators often need to perform multiple steps, such as first closing certain valves and then adjusting specific knobs. This can be time-consuming and even pose safety hazards in emergencies. Moreover, the complex structure makes maintenance and repair difficult, increasing operating costs. Utility Model Content

[0004] The purpose of this utility model is to provide a manual pump oil guide valve that facilitates pressure relief, aiming to solve the technical problems of the inconvenience of pressure relief and the complexity of the pressure relief structure of traditional manual pump oil guide valves in the prior art.

[0005] To achieve the above objectives, the present invention provides a manual pump oil guide valve for easy pressure relief, comprising a valve body, a pump plug, a pressure relief mechanism, and a control mechanism. The pump plug is connected to the pressure relief mechanism and is movably disposed on the valve body. The pressure relief mechanism is movably disposed on the valve body and disposed on one side of the control mechanism. The control mechanism is disposed on the pump plug.

[0006] The valve body is provided with a valve sleeve, an upper oil guide hole and an upper flow channel. The upper oil guide hole is located on the side of the valve body and is connected to the upper flow channel. The valve sleeve is connected to the side of the valve body and is located on one side of the upper oil guide hole and is arranged to coincide with the upper oil guide hole.

[0007] The pump plug is provided with a plug sleeve, a lower oil guide hole, a lower flow channel and an oil inlet hole. The lower oil guide hole is located on the side of the pump plug and is connected to the lower flow channel. The plug sleeve is located on the side of the pump plug and is located on one side of the lower oil guide hole and is arranged to coincide with the lower oil guide hole. The oil inlet hole is located at the bottom of the pump plug.

[0008] The pressure relief mechanism includes a pressure relief handle, a pressure relief top column, and a pressure relief spring. The pressure relief handle and the pressure relief top column are both movably disposed within the upper flow channel. The pressure relief handle is connected to one end of the pressure relief top column. The pressure relief spring is disposed on the outside of the pressure relief top column, with one end connected to the pressure relief handle and the other end connected to the pump plug.

[0009] The control mechanism includes a steel ball, a plunger valve core, an unloading valve core, and a valve core spring. The steel ball is located below the pressure relief top column and is positioned on one side of the lower oil guide hole, coinciding with the lower oil guide hole. The plunger valve core is movably disposed within the unloading valve core and connected to the steel ball. The unloading valve core is located in the lower flow channel. The valve core spring is located on the bottom side of the plunger valve core and abuts against the plunger valve core and the pump plug, respectively.

[0010] Multiple upper oil guide holes are provided and are evenly distributed on the side of the valve body, and all of the multiple upper oil guide holes are connected to the upper flow channel.

[0011] As an optional solution of this utility model, multiple lower oil guide holes are provided and are arranged at an angle on the side of the pump plug, and all of the multiple lower oil guide holes are connected to the lower flow channel.

[0012] As an optional solution of this utility model, the oil inlet is located on one side of the valve core spring and below the plunger valve core.

[0013] As an optional embodiment of this utility model, one end of the pressure relief handle extends out of the valve body and is fixedly connected to the pressure relief top column, which is positioned above the steel ball.

[0014] As an optional solution of this utility model, the unloading valve core is provided with a valve core flow channel, and the plunger valve core is movably inserted into the valve core flow channel.

[0015] As an optional embodiment of this invention, the valve core spring is arranged in a tower shape.

[0016] As an optional solution of this utility model, gaskets are fixedly installed on the sides of the valve body and the pump plug.

[0017] The manual pump oil guide valve for easy pressure relief provided in this utility model embodiment has at least one of the following technical effects:

[0018] The manual pump oil guide valve provided in this application, which facilitates pressure relief, features a pressure relief mechanism consisting of a pressure relief handle, a pressure relief pin, and a pressure relief spring. Operators can quickly relieve pressure simply by moving the pressure relief handle, eliminating the need for complex multi-step operations, thus improving work efficiency and reducing safety risks in emergencies. The valve body has multiple evenly distributed upper oil guide holes, and the pump plug has multiple inclined lower oil guide holes, increasing the oil guiding area, improving oil guiding efficiency, and making the manual pump's working performance more stable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A perspective view of a manual pump oil guide valve for easy pressure relief provided in an embodiment of this utility model.

[0021] Figure 2 A perspective view of the manual pump oil guide valve for easy pressure relief provided in this embodiment of the utility model, omitting the valve sleeve and the bushing.

[0022] Figure 3 A side view of the manual pump oil guide valve for easy pressure relief provided in this embodiment of the utility model, omitting the valve sleeve and the bushing.

[0023] Figure 4 for Figure 3 Sectional view along the middle AA.

[0024] The following are the labeling elements in the figure:

[0025] 1. Valve body; 2. Pump plug; 3. Pressure relief mechanism; 4. Control mechanism; 5. Washer;

[0026] 11. Valve sleeve; 12. Upper oil guide hole; 13. Upper flow channel;

[0027] 21. Plug sleeve; 22. Lower guide hole; 23. Lower flow channel; 24. Oil inlet hole;

[0028] 31. Pressure relief handle; 32. Pressure relief pin; 33. Pressure relief spring;

[0029] 41. Steel ball; 42. Piston valve core; 43. Unloading valve core; 44. Valve core spring. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In one embodiment of this utility model, such as Figures 1-4 As shown, a manual pump oil guide valve for easy pressure relief is provided, including a valve body 1, a pump plug 2, a pressure relief mechanism 3, and a control mechanism 4. The pump plug 2 is connected to the pressure relief mechanism 3 and is movably mounted on the valve body 1. The pressure relief mechanism 3 is movably mounted on the valve body 1 and is located on one side of the control mechanism 4, which is located on the pump plug 2.

[0035] The valve body 1 is provided with a valve sleeve 11, an upper oil guide hole 12, and an upper flow channel 13. The upper oil guide hole 12 is used to connect to the oil tank. The upper oil guide hole 12 is located on the side of the valve body 1 and is connected to the upper flow channel 13. The valve sleeve 11 is fixedly connected to the side of the valve body 1. The valve sleeve 11 is located on one side of the upper oil guide hole 12 and coincides with the upper oil guide hole 12. Oil inlet process of pump plug 2: Oil enters from the oil tank through the upper oil guide hole 12, flows out through the lower oil guide hole 22 and enters the pump plug 2. The lower oil guide hole 22 is sealed to the oil inlet hole 24 to prevent oil from directly entering the oil inlet hole 24 and flowing out.

[0036] The pump plug 2 is provided with a plug sleeve 21, a lower oil guide hole 22, a lower flow channel 23, and an oil inlet hole 24. The lower oil guide hole 22 is located on the side of the pump plug 2 and is connected to the lower flow channel 23. The plug sleeve 21 is located on the side of the pump plug 2, and is located on one side of the lower oil guide hole 22, coinciding with the lower oil guide hole 22. The oil inlet hole 24 is located at the bottom of the pump plug 2 and is used to connect to the actuator cylinder. The actuator oil inlet process: oil flows in from the pump plug 2 through the lower oil guide hole 22, flows out through the oil inlet hole 24, and enters the actuator cylinder. The lower oil guide hole 22 is sealed to the upper oil guide hole 12 to prevent oil from flowing out of the upper oil guide hole 12.

[0037] The pressure relief mechanism 3 includes a pressure relief handle 31, a pressure relief pin 32, and a pressure relief spring 33. Both the pressure relief handle 31 and the pressure relief pin 32 are movably disposed within the upper flow channel 13, with the pressure relief handle 31 fixedly connected to one end of the pressure relief pin 32. The pressure relief spring 33 is disposed on the outside of the pressure relief pin 32, with one end fixedly connected to the pressure relief handle 31 and the other end fixedly connected to the pump plug 2. Pressure relief process: Pressing the pressure relief handle 31 opens the channels of the upper oil guide hole 12 and the lower oil guide hole 22, as well as the channel of the lower oil guide hole 22 and the oil inlet hole 24. Hydraulic oil enters the upper oil guide hole 12 from the oil inlet hole 24 and flows out back to the oil tank.

[0038] The control mechanism 4 includes a steel ball 41, a plunger valve core 42, an unloading valve core 43, and a valve core spring 44. The steel ball 41 is located below the pressure relief top column 32 and is positioned on one side of the lower guide oil hole 22, coinciding with it. The plunger valve core 42 is movably disposed within the unloading valve core 43 and is fixedly connected to the steel ball 41. The unloading valve core 43 is located in the lower flow channel 23. The valve core spring 44 is located on the bottom side of the plunger valve core 42 and abuts against both the plunger valve core 42 and the pump plug 2. The flow rate can be controlled through the control mechanism 4. The pressure relief handle 31 moves the pressure relief spring 33, which in turn moves the pump plug 2. The pump plug 2 then moves the valve core spring 44, which abuts against the plunger valve core 42 and moves it. By changing the position of the plunger valve core 42 within the unloading valve core 43, the flow rate is controlled.

[0039] In another embodiment of this utility model, multiple upper oil guide holes 12 are provided and evenly distributed on the side of the valve body 1, and all of the multiple upper oil guide holes 12 are connected to the upper flow channel 13. Multiple lower oil guide holes 22 are provided and inclinedly disposed on the side of the pump plug 2, and all of the multiple lower oil guide holes 22 are connected to the lower flow channel 23. By providing multiple upper oil guide holes 12 and lower oil guide holes 22, the oil guiding efficiency is improved. The inclined lower oil guide holes 22 facilitate the flow of oil and further improve the oil guiding efficiency.

[0040] In another embodiment of this utility model, the oil inlet hole 24 is located on one side of the valve core spring 44 and below the plunger valve core 42.

[0041] In another embodiment of this utility model, one end of the pressure relief handle 31 extends out of the valve body 1 and is fixedly connected to the pressure relief top column 32, which is positioned above the steel ball 41.

[0042] In another embodiment of this utility model, the unloading valve core 43 is provided with a valve core flow channel, and the plunger valve core 42 is movably inserted into the valve core flow channel. By changing the position of the plunger valve core 42 in the valve core flow channel, the oil flow rate can be changed.

[0043] In another embodiment of this utility model, the valve core spring 44 is arranged in a tower shape, which can provide a more stable elastic force and ensure the normal operation of the control mechanism 4.

[0044] In another embodiment of this invention, gaskets 5 are fixedly installed on the sides of the valve body 1 and the pump plug 2. Gaskets 5 effectively prevent oil leakage and improve the sealing performance of the product.

[0045] The working process of the manual pump oil guide valve for easy pressure relief provided in this application is as follows: In the manual pump oil guide valve for easy pressure relief, the upper oil guide hole 12 is port A, the lower oil guide hole 22 is port B, and the oil inlet hole 24 is port C. Oil inlet process of pump plug 2: Oil enters from the oil tank through port A, flows out through port B, and enters pump plug 2. Port B to port C is sealed to prevent oil from directly entering and flowing out of port C. Oil inlet process of the actuator: Oil flows in from pump plug 2 through port B, flows out through port C, and enters the actuator cylinder. Port B to port A is sealed to prevent oil from entering and flowing out of port A. Pressure relief process: Pressing the pressure relief handle 31 opens the channels of port A and port B, and port B and port C. Hydraulic oil enters from port C, flows out through port A, and returns to the oil tank.

[0046] The manual pump oil guide valve provided in this application, which facilitates pressure relief, has a pressure relief mechanism 3 consisting of a pressure relief handle 31, a pressure relief top column 32, and a pressure relief spring 33. The operator only needs to pull the pressure relief handle 31 to achieve rapid pressure relief without complicated multi-step operations, which improves work efficiency and reduces safety risks in emergency situations. The valve body 1 is provided with multiple evenly distributed upper oil guide holes 12, and the pump plug 2 is provided with multiple inclined lower oil guide holes 22, which increases the oil guide area, improves the oil guide efficiency, and makes the working performance of the manual pump more stable.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A manual pump oil pilot valve for easy pressure relief, characterized in that, It includes a valve body, a pump plug, a pressure relief mechanism, and a control mechanism. The pump plug is connected to the pressure relief mechanism and is movably disposed on the valve body. The pressure relief mechanism is movably disposed on the valve body and disposed on one side of the control mechanism. The control mechanism is disposed on the pump plug. The valve body is provided with a valve sleeve, an upper oil guide hole and an upper flow channel. The upper oil guide hole is located on the side of the valve body and is connected to the upper flow channel. The valve sleeve is connected to the side of the valve body and is located on one side of the upper oil guide hole and is arranged to coincide with the upper oil guide hole. The pump plug is provided with a plug sleeve, a lower oil guide hole, a lower flow channel and an oil inlet hole. The lower oil guide hole is located on the side of the pump plug and is connected to the lower flow channel. The plug sleeve is located on the side of the pump plug and is located on one side of the lower oil guide hole and is arranged to coincide with the lower oil guide hole. The oil inlet hole is located at the bottom of the pump plug. The pressure relief mechanism includes a pressure relief handle, a pressure relief top column, and a pressure relief spring. The pressure relief handle and the pressure relief top column are both movably disposed within the upper flow channel. The pressure relief handle is connected to one end of the pressure relief top column. The pressure relief spring is disposed on the outside of the pressure relief top column, with one end connected to the pressure relief handle and the other end connected to the pump plug. The control mechanism includes a steel ball, a plunger valve core, an unloading valve core, and a valve core spring. The steel ball is located below the pressure relief top column and is positioned on one side of the lower oil guide hole, coinciding with the lower oil guide hole. The plunger valve core is movably disposed within the unloading valve core and connected to the steel ball. The unloading valve core is located in the lower flow channel. The valve core spring is located on the bottom side of the plunger valve core and abuts against the plunger valve core and the pump plug, respectively. Multiple upper oil guide holes are provided and are evenly distributed on the side of the valve body, and all of the multiple upper oil guide holes are connected to the upper flow channel.

2. The manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, Multiple lower oil guide holes are provided and are arranged at an angle on the side of the pump plug, and all of the multiple lower oil guide holes are connected to the lower flow channel.

3. The manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, The oil inlet is located on one side of the valve core spring and below the plunger valve core.

4. The manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, One end of the pressure relief handle extends out of the valve body and is fixedly connected to the pressure relief top column, which is positioned above the steel ball.

5. A manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, The unloading valve core is provided with a valve core flow channel, and the plunger valve core is movably inserted through the valve core flow channel.

6. A manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, The valve core spring is arranged in a tower shape.

7. A manual pump oil guide valve for easy pressure relief according to claim 1, characterized in that, Gaskets are fixedly installed on the sides of the valve body and pump plug.

Images