Automatic filling device
By designing an automatic lubrication device that uses a sliding piston and oil pressure sensor to control the flow of lubricating oil, the problem of inaccurate lubrication was solved, and automatic lubrication of bearings and continuity of the production process were achieved.
Patent Information
- Application Number
- CN202520659184.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-09
AI Technical Summary
In the existing technology, it is difficult to accurately control the timing of adding bearing lubricating oil, resulting in adding it too early or too late, which affects the production schedule and may cause bearing wear.
Design an automatic lubrication device, including a main cylinder, a sliding piston, and an elastic reset component. Automatic lubrication replenishment is achieved by switching components, and the flow of lubrication is controlled by an oil pressure sensor and a cylinder to ensure a stable supply of lubrication in the bearing housing.
It enables automatic replenishment of lubricating oil, avoids bearing wear, does not affect production progress, simplifies the operation process, and improves the management efficiency of lubricating oil.
Smart Images
Figure CN223726037U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automatic liquid adding technical field especially relates to a kind of automatic filling device. BACKGROUND
[0002] Water pump is the main power source of liquid supply system, by pump head and motor, pump head and motor are connected by pump shaft, to ensure the stable work of pump shaft, bearing box is provided in the shell of water pump, pump shaft passes through bearing box and is positioned radially by bearing, bearing can ensure the normal work of water pump.
[0003] In order to avoid excessive wear of bearing, it is necessary to regularly add grease to bearing box through oil filler to lubricate and prolong service life. However, the addition of grease by artificial regularity, on the one hand, it is difficult to accurately know the opportunity of supplementing grease, too early addition causes waste of manpower, and too late addition will cause excessive wear of bearing; On the other hand, the addition of grease needs to stop, which affects production progress. INVENTION CONTENTS
[0004] The utility model aims at providing an automatic filling device, which simplifies the operation of supplementing lubricating oil, avoids bearing wear and realizes non-stop supplementing of lubricating oil, thereby avoiding affecting production progress.
[0005] To achieve this purpose, the utility model adopts the following technical scheme:
[0006] An automatic filling device comprises:
[0007] A main cylinder body has a sliding cavity inside, an oil outlet hole communicating with the sliding cavity is formed in the bottom of the sliding cavity, and a first oil supplementing hole and a second oil supplementing hole communicating with the sliding cavity are formed in the side wall of the sliding cavity;
[0008] A switching assembly comprises a main handle, a sliding piston and an elastic return member, the sliding piston is arranged in the sliding cavity and is in sliding sealing with the inner wall of the sliding cavity, the main handle is arranged in the main cylinder body, the part of the sliding cavity between the sliding piston and the main handle forms an oil storage cavity, the oil storage cavity is in communication with the first oil supplementing hole, the main handle can drive the sliding piston to move in one direction to make the second oil supplementing hole communicate with the oil storage cavity, and the elastic return member can drive the sliding piston to move in the opposite direction to block the second oil supplementing hole.
[0009] As an optional scheme of the above-mentioned automatic filling device, the main cylinder body is internally provided with an oil storage cavity, and the second oil supplementing hole and the oil outlet hole are both in communication with the oil storage cavity.
[0010] As an optional solution of the automatic filling device, the inner wall of the sliding cavity is provided with a plurality of second oil supplement holes which are spaced apart in the circumferential direction and are in communication with the oil storage cavity.
[0011] As an optional solution of the automatic filling device, the switching assembly further comprises a tension spring, two ends of the tension spring are connected to the main handle and the main cylinder body respectively, so as to drive the main handle to move towards the sliding piston.
[0012] As an optional solution of the automatic filling device, the switching assembly further comprises a lock catch, the lock catch is connected to one end of the tension spring which is away from the main cylinder body, and the lock catch is detachably connected to the main handle.
[0013] As an optional solution of the automatic filling device, the main handle is provided with a locking groove which penetrates to the side surface, the lock catch comprises a rod part and a locking part, the rod part is connected to the tension spring and can enter the locking groove, and the locking part abuts against one end of the main handle which is away from the sliding piston.
[0014] As an optional solution of the automatic filling device, the switching assembly further comprises a sealing table, the sealing table is arranged in the oil storage cavity and is in sliding sealing with the inner wall of the oil storage cavity, and the sealing body is fixedly connected to the main handle.
[0015] As an optional solution of the automatic filling device, the elastic reset member comprises a gas cylinder and a gas source connected to the gas cylinder, the gas cylinder comprises an air inlet hole and an air outlet hole, the gas source is connected to the air inlet hole through a switch valve, and the air outlet hole is connected to the outside through a pressure relief valve.
[0016] As an optional solution of the automatic filling device, the automatic filling device further comprises an oil pressure sensor, the oil pressure sensor is arranged in the main cylinder body and can detect the oil pressure of the oil outlet hole, and the switch valve and the pressure relief valve are in communication connection with the oil pressure sensor, so as to be selectively opened or closed according to the oil pressure.
[0017] As an optional solution of the automatic filling device, the main cylinder body comprises a first cylinder body and a second cylinder body, the first cylinder body is provided with the sliding cavity, the second cylinder body is partially arranged in the sliding cavity and is detachably connected to the first cylinder body, and the second cylinder body can abut against the sliding piston to limit the sliding piston at a position of blocking the second oil supplement hole.
[0018] The utility model discloses the beneficial effects of:
[0019] The utility model provides an automatic filling device, needs first fixed in the bearing box of needing regular replenishment lubricating oil of the automatic filling device at first use, and connects the oil filler of oil hole and bearing box, injects lubricating oil through first oil hole, and lubricating oil can gradually fill the oil storage cavity and push the sliding piston to move, when the sliding piston moves to separate second oil hole, lubricating oil can pass through second oil hole and oil hole and enter bearing box, when the lubricating oil in bearing box fills, stop injecting lubricating oil to first oil hole and block first oil hole, at this moment, the elastic reset piece can push the sliding piston, along with the consumption of lubricating oil in bearing box, lubricating oil in oil storage cavity can gradually flow into bearing box, at this moment, the sliding piston can move to the position of blocking second oil hole, along with the consumption of lubricating oil in bearing box, the operator can press the main handle, drives the sliding piston movement through lubricating oil in oil storage cavity, makes oil storage cavity and second oil hole reconnection, thereby supplementing lubricating oil to bearing box.
[0020] The automatic filling device makes the operator only need to press the main handle to complete the operation of supplementing lubricating oil in bearing box, can also avoid bearing wear, and can realize non-stop supplementing lubricating oil, avoids the influence production progress. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the structure schematic drawing of automatic filling device provided by the utility model,
[0022] Figure 2 It is the first sectional view of automatic filling device provided by the utility model,
[0023] Figure 3 It is the second sectional view of automatic filling device provided by the utility model,
[0024] Figure 4 It is the structure schematic drawing of main handle provided by the utility model,
[0025] Figure 5 It is the structure schematic drawing of lock catch provided by the utility model,
[0026] Figure 6 It is the structure schematic drawing of first cylinder body provided by the utility model.
[0027] In the drawing,
[0028] 1, main cylinder body, 11, first cylinder body, 111, oil hole, 112, sliding cavity, 113, second oil hole, 114, buffer oil cavity, 12, second cylinder body, 121, first oil hole, 122, oil storage cavity,
[0029] 2, switching assembly; 21, main handle; 211, locking groove; 2111, communication groove; 2112, fixing groove; 22, sliding piston; 23, cylinder; 24, tension spring; 25, lock catch; 251, rod part; 252, locking part; 26, sealing platform; 27, sealing ring. DETAILED DESCRIPTION
[0030] Embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein the same or similar notations used throughout the drawings and the specific embodiments described herein represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.
[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.
[0032] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] Unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0034] The technical solutions of the present application are further illustrated below in conjunction with the drawings and through specific embodiments.
[0035] The water pump is the main power source of the liquid supply system, which is composed of a pump head and a motor. The pump head and the motor are connected through a pump shaft. In order to ensure the stable operation of the pump shaft, a bearing box is arranged in the shell of the water pump. The pump shaft passes through the bearing box and is radially positioned by bearings. The bearings can ensure the normal operation of the water pump. In order to avoid excessive wear of the bearings, it is necessary to regularly add grease to the bearing box through the oil filler nozzle for lubrication, thereby prolonging the service life.
[0036] Figure 1 is a structural schematic view of an automatic filling device, Figure 2 is a first sectional view of the automatic filling device, Figure 3 is a second sectional view of the automatic filling device. As Figures 1-3 shown, the embodiment provides an automatic filling device, which comprises a main cylinder body 1. The main cylinder body 1 has a sliding cavity 112 inside. The bottom of the sliding cavity 112 is provided with an oil outlet hole 111 communicating with the sliding cavity 112. The side wall of the sliding cavity 112 is provided with a first oil supplement hole 121 and a second oil supplement hole 113 communicating with the sliding cavity 112. When used for the first time, the automatic filling device needs to be fixed on the bearing box which needs to be regularly supplemented with lubricating oil, and the oil outlet hole 111 is connected with the oil filler nozzle of the bearing box. In order to facilitate connection, the bottom of the main cylinder body 1 is provided with a connecting pipe, the outer periphery of which is provided with threads. The connecting pipe is screwed with the oil filler nozzle of the bearing box to ensure sealing and stable connection.
[0037] The sliding cavity 112 can temporarily store lubricating oil. When the bearing box needs to be supplemented with lubricating oil, the lubricating oil in the sliding cavity 112 can enter the bearing box through the second oil supplement hole 113 and the oil outlet hole 111, so that the amount of lubricating oil in the bearing box is always at a high level, thereby protecting the bearings.
[0038] It can be understood that, in order to further improve the reliability of the operation of supplementing lubricating oil, in the embodiment, the automatic filling device further comprises a switching assembly 2. The switching assembly 2 comprises a main handle 21, a sliding piston 22 and an elastic reset member. The sliding piston 22 is arranged in the sliding cavity 112 and is in sliding sealing with the inner wall of the sliding cavity 112. The main handle 21 is arranged in the main cylinder body 1. The part of the sliding cavity 112 between the sliding piston 22 and the main handle 21 forms an oil storage cavity 122, and the oil storage cavity 122 is in communication with the first oil supplement hole 121. The main handle 21 can drive the sliding piston 22 to move in one direction, so that the second oil supplement hole 113 is in communication with the oil storage cavity 122. The elastic reset member can drive the sliding piston 22 to move in the opposite direction to block the second oil supplement hole 113.
[0039] Lubricating oil is injected through the first oil replenishment hole 121, gradually filling the oil reservoir 122 and pushing the sliding piston 22 to move. When the sliding piston 22 moves to the point of disengaging from the second oil replenishment hole 113, the lubricating oil can enter the bearing housing through the second oil replenishment hole 113 and the oil outlet hole 111. When the bearing housing is full of lubricating oil, the injection of lubricating oil into the first oil replenishment hole 121 is stopped and the first oil replenishment hole 121 is blocked. At this time, the elastic reset member will push the sliding piston 22. As the lubricating oil in the bearing housing is consumed, the lubricating oil in the oil reservoir 122 will gradually flow into the bearing housing. At this time, the sliding piston 22 can move to the position of blocking the second oil replenishment hole 113. As the lubricating oil in the bearing housing is consumed, the operator can press the main handle 21 to drive the sliding piston 22 to move through the lubricating oil in the oil reservoir 122, so that the oil reservoir 122 and the second oil replenishment hole 113 are reconnected, thereby replenishing the bearing housing with lubricating oil.
[0040] This automatic lubrication device allows operators to replenish lubricating oil in the bearing housing simply by pressing the main handle 21. It also prevents bearing wear and allows for lubrication replenishment without stopping the machine, thus avoiding disruption to production schedules. Furthermore, because the automatic lubrication device is equipped with a sliding piston 22, it can selectively open and close the oil reservoir 122 and the second oil replenishment hole 113, effectively preventing lubricating oil from overflowing from the bearing housing.
[0041] like Figure 2 and Figure 3 As shown, the main cylinder 1 has a buffer oil chamber 114 inside, and the second oil replenishment hole 113 and the oil outlet hole 111 are both connected to the buffer oil chamber 114. The buffer oil chamber 114 can increase the amount of lubricating oil injected initially. After the lubricating oil fills the bearing housing, it will first fill the buffer oil chamber 114, and after filling the oil storage chamber 122, it will block the first oil replenishment hole 121. The elastic reset member can drive the sliding piston 22 to block the second oil replenishment hole 113. When a part of the lubricating oil in the bearing housing is consumed, the lubricating oil in the buffer oil chamber 114 will first flow into the bearing housing. When the amount of lubricating oil in the buffer oil chamber 114 decreases, the operator can press the main handle 21 to replenish the lubricating oil in the oil storage chamber 122 into the buffer oil chamber 114.
[0042] To ensure reliable communication between the oil storage chamber 122 and the buffer oil chamber 114, a plurality of second oil replenishment holes 113 are spaced circumferentially on the inner wall of the sliding chamber 112, and all of the second oil replenishment holes 113 are connected to the buffer oil chamber 114. It is worth noting that during its movement, the sliding piston 22 can simultaneously block or avoid multiple second oil replenishment holes 113, thereby switching the connection between the oil storage chamber 122 and the buffer oil chamber 114.
[0043] Further, in order to ensure the sealing effect between the sliding piston 22 and the inner wall of the sliding cavity 112, a sealing ring 27 is sleeved on the outer periphery of the sliding piston 22, and the sliding piston 22 and the inner wall of the sliding cavity 112 extrude the sealing ring 27 to form a sliding seal. In order to avoid slipping between the sealing ring 27 and the sliding piston 22, a clamping groove is arranged on the outer periphery of the sliding piston 22, and the sealing ring 27 is partially arranged in the clamping groove. It should be noted that the outer periphery of the sliding piston 22 can be provided with one sealing ring 27, or more than two sealing rings 27, and the specific number can be determined according to the size of the sliding piston 22 and the sealing requirement.
[0044] In some embodiments, the elastic return member can be a spring, and the operator needs to overcome the elastic force of the elastic return member to drive the sliding piston 22 to move when pressing the main handle 21.
[0045] It can be understood that the main handle 21 needs to drive the piston to move through the lubricating oil and gas in the oil storage cavity 122. In order to achieve the above purpose, the switching assembly 2 further comprises a sealing table 26, which is arranged in the oil storage cavity 122 and is in sliding seal with the inner wall of the oil storage cavity 122, and the sealing body is fixedly connected with the main handle 21. The sealing table 26 is in the shape of a circular table and can be sealed with the inner wall of the oil storage cavity 122, so that it can be pushed by the pressure of the gas and lubricating oil in the oil storage cavity 122 when moving.
[0046] In the present embodiment, the elastic return member includes a gas cylinder 23 and a gas source connected with the gas cylinder 23, the gas cylinder 23 includes an air inlet hole and an air outlet hole, the gas source is connected with the air inlet hole through a switch valve, and the air outlet hole is connected with the outside through a pressure relief valve. When it is needed to supplement the lubricating oil to the buffer oil cavity 114, the pressure relief valve is opened, the piston of the gas cylinder 23 is retracted, so that the sliding piston 22 can move to make the oil storage cavity 122 communicate with the second oil supplementing hole 113; when the lubricating oil in the bearing box is sufficient and the buffer oil cavity 114 is full of lubricating oil, the switch valve is opened and the pressure relief valve is closed, the gas source fills the gas cylinder 23 to drive the piston to reset, and the piston can block the second oil supplementing hole 113. When the lubricating oil is supplemented through the first oil supplementing hole 121, the piston can be compressed due to the larger external oil pressure, and the pressure relief operation can be omitted.
[0047] In the present embodiment, the automatic filling device further comprises a handle, the handle is connected with the switch valve, and the operator can control the opening and closing of the switch valve through the handle.
[0048] As Figures 1-3As shown, the switching assembly 2 further comprises a tension spring 24, two ends of the tension spring 24 are connected to the main handle 21 and the main cylinder body 1 respectively, so as to drive the main handle 21 to move towards the sliding piston 22. The tension spring 24 can provide a continuous downward pressure to the piston, and after the exhaust valve is opened, the tension spring 24 can drive the main handle 21 to move to provide pressure to the lubricating oil in the oil storage cavity 122, so that the lubricating oil can quickly supplement the buffer oil cavity 114 and improve the efficiency.
[0049] Further, the switching assembly 2 further comprises a lock catch 25, the lock catch 25 is connected to the end of the tension spring 24 away from the main cylinder body 1, and the lock catch 25 is detachably connected to the main handle 21. When the lubricating oil in the oil storage cavity 122 enters the buffer oil cavity 114 and the amount of lubricating oil in the buffer oil cavity 114 is also small, the main handle 21 needs to be moved to the end of the oil storage cavity 122 away from the piston to leave the first oil supplement hole 121 to supplement the lubricating oil. At this time, the lock catch 25 can be detached from the main handle 21 to avoid the influence of the tension spring 24 on the movement of the main handle 21, and the lock catch 25 can be reconnected to the main handle 21 after the lubricating oil is supplemented.
[0050] Figure 4 is a structural schematic view of the main handle, Figure 5 is a structural schematic view of the lock catch, as Figure 4 and Figure 5 As shown, the main handle 21 is provided with a locking groove 211 penetrating to the side surface, the lock catch 25 comprises a rod portion 251 and a locking portion 252, the rod portion 251 is connected to the tension spring 24 and can enter the locking groove 211, and the locking portion 252 abuts against the end of the main handle 21 away from the sliding piston 22. By sliding the rod portion 251 into the locking groove 211, the locking portion 252 can be clamped with the main handle 21, so that the tension spring 24 generates a pulling force on the main handle 21; by sliding the rod portion 251 out of the locking groove 211, the lock catch 25 can be detached from the main handle 21, which facilitates the operation of supplementing the lubricating oil.
[0051] In order to avoid the lock catch 25 from sliding out of the locking groove 211 and causing accidents, the locking groove 211 comprises a communication groove 2111 and a fixed groove 2112 which are in communication with each other and are arranged at an angle, the communication groove 2111 penetrates to the side surface of the main handle 21, and the rod portion 251 needs to change direction and then slide into the fixed groove 2112 after sliding into the communication groove 2111, which improves the stability of the lock catch 25 in the locking groove 211 and avoids the problem that the lock catch 25 horizontally moves due to unbalanced force and then slides out of the locking groove 211.
[0052] In order to enable the piston to be stably stopped at the position of blocking the second oil supplement hole 113, the main cylinder body 1 further comprises a limiting structure, the limiting structure is arranged on the inner wall of the sliding cavity 112, and the limiting structure is located on the side of the piston away from the elastic return member. When the elastic return member pushes the piston to make the piston abut against the limiting structure, the piston is at the position of blocking the second oil supplement hole 113.
[0053] Figure 6 is a structural schematic diagram of the first cylinder body, as shown in Figure 2 , Figure 3 and Figure 6 , the main cylinder body 1 comprises a first cylinder body 11 and a second cylinder body 12, the first cylinder body 11 is provided with a sliding cavity 112, the second cylinder body 12 is partially arranged in the sliding cavity 112 and detachably connected with the first cylinder body 11, and the second cylinder body 12 can abut against the sliding piston 22 to limit the sliding piston 22 at a position of blocking the second oil supplement hole 113. The first cylinder body 11 and the second cylinder body are in a detachable structure, which is convenient for the maintenance and repair of the piston and the cylinder 23, and can also use the second cylinder body 12 to make a limiting structure at one end in the first cylinder body 11, thereby eliminating the design requirement of additionally arranging a limiting structure and reducing the cost.
[0054] In order to improve the degree of automation and reduce the dependence on manpower, the automatic filling device further comprises an oil pressure sensor, the oil pressure sensor is arranged in the main cylinder body 1 and can detect the oil pressure of the oil outlet hole 111, and the switch valve and the pressure relief valve are both in communication connection with the oil pressure sensor, so as to selectively open or close according to the oil pressure.
[0055] The oil pressure sensor can monitor the oil pressure of the oil outlet hole 111, when the oil pressure of the oil outlet hole decreases to a first threshold value, it indicates that the bearing box needs to be supplemented with lubricating oil, the pressure relief valve is opened, and the lubricating oil in the oil storage cavity 122 can flow into the buffer oil cavity 114; when the oil pressure of the oil outlet hole increases to a second threshold value, it indicates that the bearing box is full of lubricating oil, the pressure relief valve is closed, the switch valve is opened, and the piston blocks the second oil supplement hole 113.
[0056] It is worth noting that the automatic filling device can also be provided with an oil pressure sensor or an oil level sensor in the buffer oil cavity 114, the amount of lubricating oil in the buffer oil cavity 114 can be calculated by monitoring the oil level of the lubricating oil in the buffer oil cavity 114, when the amount of lubricating oil in the buffer oil cavity 114 decreases to a threshold value, the pressure relief valve is opened, and the lubricating oil in the oil storage cavity 122 can flow into the buffer oil cavity 114; when the lubricating oil in the buffer oil cavity 114 fills the buffer oil cavity 114, the pressure relief valve is closed, the switch valve is opened, and the piston blocks the second oil supplement hole 113.
[0057] The working process of the automatic filling device is described as follows:
[0058] The connecting pipe of the automatic filling device is fixed on the oil filler of the bearing box which needs to be supplemented with lubricating oil regularly, and the lock catch 25 is detached from the main handle 21. The lubricating oil is injected through the first oil supplement hole 121, and after the lubricating oil enters the bearing box and fills the buffer oil cavity 114 and the oil storage cavity 122, the first oil supplement hole 121 is closed, at this time the piston is blocked by the second oil supplement hole 113 under the driving of the cylinder 23. The lock catch 25 is clamped in the locking groove 211 of the main handle 21, and the installation is completed.
[0059] In the working process of the bearing box, when the amount of lubricating oil in the bearing box is reduced and needs to be supplemented, the lubricating oil in the buffer oil cavity 114 enters the bearing box. When the amount of lubricating oil in the buffer oil cavity 114 is small and needs to be supplemented, the controller receives the signal of the oil pressure sensor or the oil level sensor, controls the pressure relief valve to open, the tension spring 24 drives the main handle 21 to move downward, when the piston no longer blocks the second oil supplementing hole 113, the lubricating oil in the oil storage cavity 122 enters the buffer oil cavity 114. When the amount of lubricating oil in the buffer oil cavity 114 is more or full, the controller controls the pressure relief valve to close and opens the switch valve, the cylinder 23 pushes the piston to move upward and blocks the second oil supplementing hole 113. The above process is circularly carried out to realize the automatic oil supplementing operation of the buffer oil cavity 114, and the process does not need the intervention of the operator, belongs to the automatic oil supplementing, saves manpower and reduces the working strength.
[0060] When the lubricating oil in the oil storage cavity 122 is all supplemented into the buffer oil cavity 114 and the buffer oil cavity 114 triggers the oil pressure sensor or the oil level sensor again, the operator needs to supplement the lubricating oil through the first oil supplementing hole 121.
[0061] The above is only the preferred embodiment of the present application, for the ordinary skilled in the art, according to the idea of the present application, the specific implementation mode and the application range will have the change, the content of the specification should not be understood as the limitation of the present application.
Claims
1. An automatic filler, characterized in that, The application relates to a master cylinder (1) and a switching assembly (2) thereof. The master cylinder (1) has a sliding cavity (112) inside, the bottom of the sliding cavity (112) is provided with an oil outlet hole (111) communicating with the sliding cavity (112), and the side wall of the sliding cavity (112) is provided with a first oil supplement hole (121) and a second oil supplement hole (113) communicating with the sliding cavity (112). The switching assembly (2) comprises a main handle (21), a sliding piston (22) and an elastic reset member, the sliding piston (22) is arranged in the sliding cavity (112) and is in sliding sealing with the inner wall of the sliding cavity (112), the main handle (21) penetrates through the master cylinder (1), the part of the sliding cavity (112) between the sliding piston (22) and the main handle (21) forms an oil storage cavity (122), the oil storage cavity (122) is in communication with the first oil supplement hole (121), the main handle (21) can drive the sliding piston (22) to move in one direction, so that the second oil supplement hole (113) is in communication with the oil storage cavity (122), and the elastic reset member can drive the sliding piston (22) to move in the opposite direction to block the second oil supplement hole (113).
2. The automatic filler of claim 1, wherein The master cylinder (1) is internally provided with a buffer oil cavity (114), and the second oil supplement hole (113) and the oil outlet hole (111) are both in communication with the buffer oil cavity (114).
3. The automatic filler of claim 2, wherein, The inner wall of the sliding cavity (112) is circumferentially and intermittently provided with a plurality of second oil supplement holes (113), and the plurality of second oil supplement holes (113) are all in communication with the buffer oil cavity (114).
4. The automatic filler of claim 1, wherein The switching assembly (2) further comprises a tension spring (24), two ends of the tension spring (24) are connected with the main handle (21) and the master cylinder (1) respectively, so as to drive the main handle (21) to move in the direction close to the sliding piston (22).
5. The automatic filler of claim 4, wherein, The switching assembly (2) further comprises a lock buckle (25), the lock buckle (25) is connected to the end of the tension spring (24) away from the master cylinder (1), and the lock buckle (25) is detachably connected with the main handle (21).
6. The automatic filler of claim 5, wherein, The main handle (21) is provided with a locking groove (211) penetrating to the side surface, the lock buckle (25) comprises a rod part (251) and a locking part (252), the rod part (251) is connected with the tension spring (24) and can enter the locking groove (211), and the locking part (252) abuts against one end of the main handle (21) away from the sliding piston (22).
7. The automatic filler of claim 1, wherein The switching assembly (2) further comprises a sealing table (26), the sealing table (26) is arranged in the oil storage cavity (122) and is in sliding sealing with the inner wall of the oil storage cavity (122), and the sealing table (26) is fixedly connected with the main handle (21).
8. The automatic filler of claim 1, wherein, The elastic reset member comprises a gas cylinder (23) and a gas source connected with the gas cylinder (23), the gas cylinder (23) comprises an air inlet hole and an air outlet hole, the air inlet hole is connected with the gas source through a switch valve, and the air outlet hole is connected with the outside through a pressure relief valve.
9. The automatic filler of claim 8, wherein, The automatic filling device further comprises an oil pressure sensor arranged in the main cylinder body (1) and capable of detecting the oil pressure of the oil outlet hole (111), and the switch valve and the pressure relief valve are both in communication connection with the oil pressure sensor to be selectively opened or closed according to the oil pressure.
10. The automatic filler of claim 1, wherein The main cylinder body (1) comprises a first cylinder body (11) provided with the sliding cavity (112) and a second cylinder body (12) partially arranged in the sliding cavity (112) and detachably connected with the first cylinder body (11), and the second cylinder body (12) is capable of abutting against the sliding piston (22) to limit the sliding piston (22) at a position for blocking the second oil supplement hole (113).