A single point lubricator

Abstract

This application discloses a single-point lubricator, including a lubricator body, which comprises an oil reservoir, a base, an oil passage block, and an outlet connector. The oil reservoir is threadedly fixed to the base, and the oil outlet of the base communicates with the oil inlet of the oil passage block. The oil outlet of the oil passage block is threadedly fixed to the outlet connector. The oil passage block has an installation cavity, on one side of which is a valve seat plunger that moves back and forth under the drive of a driving device. On the other side of the installation cavity are a valve seat rear plunger and a valve seat rear plunger sleeve, with the rear end of the valve seat rear plunger engaging with the valve seat rear plunger sleeve. An oil inlet channel is provided between the valve seat plunger and the valve seat rear plunger in the installation cavity, and the oil inlet channel communicates with the oil inlet of the oil passage block. This invention provides a single-point lubricator that can precisely supply grease to a single lubrication point, solving the problem of difficulty in manually accessing lubrication points, and avoiding complex pipelines and high maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of lubrication equipment technology, and more specifically to a single-point lubricator. Background Technology

[0002] In modern industrial settings, lubrication points for equipment such as bearings, pumps, and motors are often difficult to access manually due to safety restrictions or specific installation locations, leading to uneven grease supply and inefficient operation. Furthermore, if lubrication points are widely distributed but few in number, a centralized lubrication system is not only complex and costly to install, but also increases maintenance difficulty. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings of the prior art, the present invention provides a single-point lubricator that can accurately supply grease to a single lubrication point, is flexible in installation, solves the problem of difficulty in manually accessing the lubrication point, and avoids complex pipelines and high maintenance costs.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a single-point lubricator, including a lubricator body, the lubricator body including an oil storage container, a base, an oil passage block and an outlet connector; the oil storage container is fixedly connected to the base by threads, the oil outlet of the base is connected to the oil inlet of the oil passage block, and the oil outlet of the oil passage block is fixedly connected to the outlet connector by threads. The oil passage block has an installation cavity. A valve seat plunger is provided on one side of the installation cavity. The valve seat plunger moves back and forth under the drive of the drive device. A valve seat rear plunger and a valve seat rear plunger sleeve are provided on the other side of the installation cavity. The rear end of the valve seat rear plunger is connected to the valve seat rear plunger sleeve. An oil inlet channel is provided between the valve seat plunger and the valve seat rear plunger in the installation cavity. The oil inlet channel is connected to the oil inlet hole of the oil passage block. A first through hole, sealed by a check valve, is provided on the side wall of the rear end of the valve seat plunger. A spring is fixedly connected between the check valve and the rear side wall of the inner cavity of the valve seat plunger sleeve. A second through hole is provided on the lower side wall of the inner cavity of the valve seat plunger sleeve. The second through hole is connected to the oil outlet of the oil circuit block through an inclined oil outlet channel inside the oil circuit block.

[0005] The aforementioned single-point lubricator can achieve precise lubricant output through the cooperation of components such as valve seat plunger, valve seat rear plunger, valve seat rear plunger sleeve, and check valve within the oil circuit block. This allows for precise grease supply to a single lubrication point. It is flexible in installation, as it can be installed directly on the lubrication point or remotely, thus solving the problem of difficulty in manually accessing the lubrication point. Furthermore, it can replace centralized lubrication systems, avoiding complex pipelines and high maintenance costs, and effectively optimizing costs.

[0006] Meanwhile, the lubricator body utilizes the internal oil passages of the oil manifold to add lubricant, resulting in a compact structure that is easy to install and maintain. It also has fewer leakage points and higher reliability.

[0007] In a preferred embodiment, a valve seat plunger sleeve is provided inside the mounting cavity. The valve seat plunger sleeve is threaded onto the front end of the valve seat plunger, and there is a threaded clearance between the valve seat plunger and the valve seat plunger sleeve. An oil drain channel is provided on the outside of the valve seat plunger sleeve, and the oil drain channel connects the threaded clearance and the oil inlet channel.

[0008] The function of the aforementioned drain channel is as follows: During the back-and-forth movement of the valve seat plunger, a small amount of lubricant often enters the thread clearance. When the valve seat plunger rotates backward, the lubricant in the thread clearance may cause the valve seat plunger to become stuck. By setting up the drain channel, whenever the valve seat plunger rotates backward, the lubricant in the thread clearance will be drained back to the oil inlet channel of the oil passage block through the drain channel on the outside of the valve seat plunger sleeve, thereby effectively preventing the valve seat plunger from becoming stuck.

[0009] In a preferred embodiment, the drive device includes a motor and a gear mechanism, wherein the motor drives the valve seat plunger to rotate along the thread and move back and forth via the gear mechanism.

[0010] The above embodiment uses a motor and gear mechanism to drive the valve seat plunger to move back and forth according to the thread rotation, which can accurately output lubricant, and has good stability and safety.

[0011] In a preferred embodiment, an oil storage gap is provided between the oil passage block and the valve seat rear plunger sleeve. The oil storage gap is connected to the inner cavity of the valve seat rear plunger sleeve to allow lubricant that has not entered the oil outlet channel in time to enter, thus preventing blockage.

[0012] In a preferred embodiment, the oil manifold block is further provided with a grease fitting nozzle, which is connected to the oil inlet channel through the oil filling channel within the oil manifold block.

[0013] The aforementioned single-point lubricator directly replenishes lubricant to the oil storage container by setting a grease nipple. There is no need to disassemble the equipment; lubrication can be completed simply by connecting the grease nipple to the oil gun. This can effectively shorten maintenance time and improve maintenance efficiency.

[0014] In a preferred embodiment, sealing rings are provided between the oil storage container and the base, between the oil outlet of the base and the oil inlet of the oil passage block, and between the oil outlet of the oil passage block and the outlet connector to achieve a sealing effect.

[0015] In a preferred embodiment, the oil storage container is a replaceable grease cartridge or a refillable grease tank.

[0016] The single-point lubricator provided in this embodiment can use a replaceable grease cartridge or a refillable grease reservoir, is compatible with lubricating oil or grease, and can be adapted to a variety of equipment.

[0017] In a preferred embodiment, the single-point lubricator further includes a battery, an indicator light, and a control circuit board. The control circuit board is connected to the battery, the indicator light, and the drive device, and both the control circuit board and the battery are located inside the base. The control circuit board is used to control the indicator light and the drive device.

[0018] This embodiment is battery powered, which is replaceable or rechargeable and suitable for single-point installation; moreover, the oil storage container can store the lubricant required for multiple lubrications, allowing for long-term use after a single installation, making it more convenient to use.

[0019] In a preferred embodiment, the single-point lubricator further includes a housing, with the lubricator body disposed within the housing. The housing has a placement area for placing a magnetic cover, which corresponds to the magnetic induction area on the base. The control circuit board has a magnetic induction component corresponding to the magnetic induction area. The control circuit board sets the working state of the single-point lubricator according to the induction result of the magnetic cover by the magnetic induction component.

[0020] In a preferred embodiment, the single-point lubricator further includes a housing, with the lubricator body housed within the housing; a button is provided on the base, the button being electrically connected to a control circuit board, and the control circuit board setting the working state of the single-point lubricator based on the monitoring results of the button.

[0021] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of the present invention are: a single-point lubricator can achieve precise output of lubricant through the cooperation of components such as valve seat plunger, valve seat rear plunger, valve seat rear plunger sleeve and check valve in the oil circuit block, thereby accurately supplying grease to a single lubrication point. It is flexible in installation, and can be directly installed on the lubrication point or installed remotely, thereby solving the problem of difficulty in manually accessing the lubrication point. It can also replace the centralized lubrication system, avoiding complex pipelines and high maintenance costs, and effectively optimizing costs.

[0022] In addition, other advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is an installation state diagram of the single-point lubricator in the embodiments of this application; Figure 2 This is an exploded view of the single-point lubricator in the embodiments of this application; Figure 3 This is a side view of the single-point lubricator in an embodiment of this application; Figure 4 Examples of embodiments in this application Figure 3 Cross-sectional view at position AA; Figure 5 This is another side view of the single-point lubricator in the embodiments of this application; Figure 6 Examples of embodiments in this application Figure 5 Cross-sectional view at position BB; Figure 7 Examples of embodiments in this application Figure 5 Cross-sectional view at position CC; Figure 8 This is a side view of the oil passage block in an embodiment of this application; Figure 9 Examples of embodiments in this application Figure 8 Cross-sectional view at location DD; Figure 10 This is a view of the oil passage block from another side in an embodiment of this application; Figure 11 Examples of embodiments in this application Figure 10 Cross-sectional view at the EE location; Figure 12 Examples of embodiments in this application Figure 10 Cross-sectional view at position FF; Explanation of reference numerals in the attached drawings: 1. Oil storage container; 11. Pressure plate; 12. Oil storage container positioning component; 2. Base; 3. Oil passage block; 31. Valve seat plunger; 32. Valve seat plunger sleeve; 33. Valve seat rear plunger; 34. Valve seat rear plunger sleeve; 35. Check valve; 36. Spring; 4. Outlet connector; 5. Drive device; 51. Motor; 52. Gear mechanism; 53. Motor protective cover; 54. Motor positioning block; 6. Grease nipple; 7. Battery; 8. Indicator light; 9. Control circuit board; 100. Lubrication point; 101. Upper cover; 102. Lower cover; 103. Magnetic cover; 301. Oil inlet channel; 302. Oil outlet channel; 303. Oil replenishment channel; 304. Oil discharge channel; 305. Oil storage gap. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] Reference Figure 1-12 This invention describes a single-point lubricator suitable for lubricating various equipment such as bearings, pumps, and motors in industrial settings.

[0028] In one embodiment, such as Figure 1-12 As shown, a single-point lubricator includes a lubricator body, which includes an oil storage container 1, a base 2, an oil passage block 3, and an outlet connector 4. The oil storage container 1 is fixedly connected to the base 2 by threads, the oil outlet of the base 2 is connected to the oil inlet of the oil passage block 3, and the oil outlet of the oil passage block 3 is fixedly connected to the outlet connector 4 by threads. The oil circuit block 3 has an installation cavity. A valve seat plunger 31 is provided on one side of the installation cavity. The valve seat plunger 31 moves back and forth under the drive of the drive device 5. A valve seat rear plunger 33 and a valve seat rear plunger sleeve 34 are provided on the other side of the installation cavity. The rear end of the valve seat rear plunger 33 is connected to the valve seat rear plunger sleeve 34. An oil inlet channel 301 is provided in the installation cavity between the valve seat plunger 31 and the valve seat rear plunger 33. The oil inlet channel 301 is connected to the oil inlet hole of the oil circuit block 3. A first through hole, which is blocked by a one-way valve 35, is provided on the side wall of the rear end of the valve seat rear plunger 33. A spring 36 is fixedly connected between the one-way valve 35 and the rear side wall of the inner cavity of the valve seat rear plunger sleeve 34. A second through hole is provided on the lower side wall of the inner cavity of the valve seat rear plunger sleeve 34. The second through hole is connected to the oil outlet of the oil circuit block 3 through the oil outlet channel 302 that is obliquely arranged inside the oil circuit block 3.

[0029] Among them, the oil outlet of the oil storage container 1 is connected to the oil outlet hole of the base 2; the outlet of the outlet connector 4 is located at the lubrication point 100; the inner cavity of the valve seat rear plunger 33 can be connected to the inner cavity of the valve seat rear plunger sleeve 34 through the first through hole, and the one-way valve 35 is reset by the spring 36.

[0030] Specifically, in order to better install the oil storage container 1 onto the base 2, the lubricator body may also include a pressure plate 11 and an oil storage container positioning component 12. The pressure plate 11 is located at the bottom of the inner cavity of the oil storage container 1 to press the oil storage container 1 more stably onto the base 2. The oil storage container positioning component 12 is located between the oil storage container 1 and the base 2 to position the oil storage container 1. The oil storage container 1 can store lubricant for several months of use, allowing for long-term use after a single installation, which is economical and long-lasting.

[0031] Furthermore, the drive unit 5 can be powered by the battery 7 built into the single-point lubricator to improve installation flexibility.

[0032] The working principle of the above-mentioned single-point lubricator is as follows: When the single-point lubricator starts running, the drive device 5 drives the valve seat plunger 31 forward. Under the thrust of the valve seat plunger 31, the lubricant enters the inner cavity of the valve seat rear plunger 33 and pushes the one-way valve 35. The one-way valve 35 compresses the spring 36, and the lubricant then enters the inner cavity of the valve seat rear plunger sleeve 34. Then, through the second through hole opened on the lower side wall of the inner cavity of the valve seat rear plunger sleeve 34, it is pushed to the oil outlet of the oil passage block 3 via the inclined oil outlet channel 302 inside the oil passage block 3. Finally, the lubricant is delivered to the lubrication point 100 through the channel inside the outlet connector 4. After a single oil injection is completed, the drive device 5 drives the valve seat plunger 31 backward, and then the one-way valve 35 resets under the action of the spring 36. One operation of the single-point lubricator ends, preparing for the next operation.

[0033] The aforementioned single-point lubricator can control the oil injection volume in two ways: one is by controlling the stroke of the valve seat plunger 31 to change the single-time oil injection volume; the other is, when the single-time oil injection volume remains constant, by changing the operating cycle of the single-point lubricator to control the oil injection volume per unit time. The operating cycle refers to the time interval between two oil injection actions performed by the single-point lubricator.

[0034] In practice, with the total capacity of the oil storage container 1 and the amount of oil injected each time remaining constant, the operating cycle can be changed by altering the refill cycle of the single-point lubricator, thereby controlling the amount of oil injected per unit time. The refill cycle refers to the time interval during which lubricant, oil, etc., in the single-point lubricator can be replenished or replaced. It can be represented by the number of months. The more months selected, the longer the time interval between two oil injection actions of the single-point lubricator, and the less oil is injected per unit time.

[0035] For example, assuming the total capacity of oil storage container 1 is 24 ml, and the single filling volume is 1 ml: The single-point lubricator is set to be able to be filled with oil in one month. That is, if all the oil in oil storage container 1 is filled within one month, the single-point lubricator will be filled with oil 24 times within one month, and the monthly oil filling amount will be 24ml. The refill cycle of the single-point lubricator is set to 12 months, meaning that all the oil in the oil storage container 1 is filled within 12 months. In this case, the single-point lubricator will be refilled 24 times within 12 months, with 2 refills per month and a monthly refill volume of 2ml.

[0036] In actual installation, the single-point lubricator can be directly installed on lubrication point 100, so that the outlet of outlet connector 4 is located at lubrication point 100 to achieve direct lubrication; alternatively, an oil supply pipe can be connected to the outlet end of outlet connector 4, and the outlet of the oil supply pipe can be fixed at lubrication point 100 to achieve remote installation. In order to ensure the lubrication effect during remote installation, the distance between the single-point lubricator and lubrication point 100 should not be too far and should be within a certain feasible range.

[0037] The aforementioned single-point lubricator can be installed independently at a single lubrication point 100, automatically and quantitatively adding lubricant. This solves the maintenance problem of manual operation making it difficult to access the lubrication point 100, and also replaces the centralized lubrication system to achieve efficient and precise lubrication.

[0038] The single-point lubricator provided in the above embodiment can achieve precise lubricant output through the cooperation of components such as the valve seat plunger 31, valve seat rear plunger 33, valve seat rear plunger sleeve 34, and one-way valve 35 within the oil manifold block 3. This allows for precise grease supply to a single lubrication point 100. Installation is flexible; it can be directly installed on the lubrication point 100 or remotely installed via a certain length of oil pipe, thus solving the problem of difficulty in accessing the lubrication point 100. Furthermore, it can replace centralized lubrication systems, avoiding complex piping and high maintenance costs, effectively optimizing costs. The lubricator body utilizes the oil passages within the oil manifold block 3 for lubricant filling, resulting in a compact structure that facilitates installation and maintenance, and has fewer leakage points, leading to higher reliability.

[0039] In this embodiment, a valve seat plunger sleeve 32 is also provided in the mounting cavity. The valve seat plunger sleeve 32 is threadedly fitted onto the front end of the valve seat plunger 31, and there is a threaded gap between the valve seat plunger 31 and the valve seat plunger sleeve 32. An oil drain channel 304 is provided on the outside of the valve seat plunger sleeve 32, and the oil drain channel 304 connects the threaded gap and the oil inlet channel 301.

[0040] The number of oil drain channels 304 can be one, two or more. In specific implementation, two oil drain channels 304 can be symmetrically arranged on the outside of the valve seat plunger sleeve 32. These two oil drain channels 304 can be located on the upper and lower or left and right sides of the valve seat plunger sleeve 32, respectively, to facilitate oil draining from both sides.

[0041] The function of the aforementioned oil drain channel 304 is as follows: During the back-and-forth movement of the valve seat plunger 31, a small amount of lubricant often enters the thread gap. When the valve seat plunger 31 rotates backward, the lubricant in the thread gap may cause the valve seat plunger 31 to become stuck. By setting the oil drain channel 304, whenever the valve seat plunger 31 rotates backward, the lubricant in the thread gap will be drained back to the oil inlet channel 301 of the oil circuit block 3 through the oil drain channel 304 on the outside of the valve seat plunger sleeve 32, thereby effectively preventing the valve seat plunger 31 from becoming stuck.

[0042] In this embodiment, the drive device 5 includes a motor 51 and a gear mechanism 52. The motor 51 drives the valve seat plunger 31 to rotate along the thread and move back and forth through the gear mechanism 52.

[0043] The gear mechanism 52 may include multiple meshing gears. The input end of the gear mechanism 52 is connected to the output shaft of the motor 51, and the output end of the gear mechanism 52 is connected to the rear end of the valve seat plunger 31. The motor 51 drives the valve seat plunger 31 to rotate relative to the valve seat plunger sleeve 32 along the thread, converting the rotational motion into linear motion, thereby realizing the back-and-forth movement of the valve seat plunger 31.

[0044] Specifically, when the single-point lubricator starts operating, the motor 51 rotates forward, driving the gear mechanism 52 to rotate. The gear mechanism 52 pushes the valve seat plunger 31 forward along the thread to add lubricant. After adding lubricant, the motor 51 reverses, and the valve seat plunger 31 rotates backward along the thread under the drive of the gear mechanism 52. Subsequently, the one-way valve 35 is reset under the action of the spring 36, and the single-point lubricator completes one operation.

[0045] In practice, the motor 51 is also provided with a motor protective cover 53 to protect the motor 51, which helps to extend the service life of the motor 51; at the same time, the motor 51 is fixed to the lower part of the inner cavity of the single-point lubricator housing by the motor positioning block 54.

[0046] The above embodiment uses a motor 51 and a gear mechanism 52 to drive the valve seat plunger 31 to move back and forth according to the thread rotation, which can accurately output lubricant, and has good stability and is safe and reliable.

[0047] In this embodiment, an oil storage gap 305 is provided between the oil passage block 3 and the valve seat rear plunger sleeve 34. The oil storage gap 305 is connected to the inner cavity of the valve seat rear plunger sleeve 34 to allow lubricant that has not entered the oil outlet channel 302 in time to enter, so as to avoid blockage.

[0048] The function of the above-mentioned oil storage gap 305 is as follows: When the valve seat plunger 31 moves forward, some lubricant may not be able to be delivered to the outlet connector 4 in time through the inclined oil outlet channel 302. At this time, the lubricant can enter the oil storage gap 305 between the oil passage block 3 and the valve seat rear plunger sleeve 34 to prevent blockage.

[0049] In this embodiment, the oil circuit block 3 is also provided with a grease nipple 6, which is connected to the oil inlet channel 301 through the oil replenishment channel 303 in the oil circuit block 3.

[0050] The grease nozzle 6 can be threadedly connected to the inlet of the oil replenishment channel 303; the oil replenishment channel 303 is connected to the oil storage container 1 through the oil inlet channel 301.

[0051] In practice, the single-point lubricator can replenish lubricant through the grease nipple 6, and deliver the lubricant to the oil inlet channel 301 inside the oil circuit block 3 through the grease nipple 6. The lubricant is finally delivered to the oil storage container 1 through the oil inlet channel 301.

[0052] The aforementioned single-point lubricator directly replenishes lubricant to the oil storage container 1 by setting a grease nipple 6. There is no need to disassemble the equipment; lubrication can be completed simply by connecting the grease nipple 6 to the oil gun. This can effectively shorten maintenance time and improve maintenance efficiency.

[0053] In this embodiment, sealing rings are provided between the oil storage container 1 and the base 2, between the oil outlet of the base 2 and the oil inlet of the oil passage block 3, and between the oil outlet of the oil passage block 3 and the outlet connector 4 to achieve a sealing effect.

[0054] Each of the sealing rings can be an O-ring.

[0055] In practice, the oil storage container 1 and the base 2 are fixedly connected by threads and sealed with O-rings. The oil outlet of the base 2 is aligned with the oil inlet of the oil passage block 3 and sealed with O-rings. The outlet connector 4 is fixedly connected to the oil outlet of the oil passage block 3 by threads and sealed with O-rings.

[0056] In this embodiment, the oil storage container 1 is a replaceable grease cartridge or a refillable grease tank.

[0057] The grease cartridge is a grease cartridge used to automatically add grease to the equipment. When the lubricating oil inside is used up, the user can easily replace it with a new grease cartridge. The grease tank can be equipped with a separate filling port, so that the user can add grease directly through the filling port without replacing the grease tank.

[0058] As one implementation method of this embodiment, the grease reservoir can also be filled directly through the grease nipple 6 located on the oil circuit block 3 by the single-point lubricator, making filling more convenient.

[0059] In specific implementations, the single-point lubricator can use a replaceable grease cartridge or a refillable grease tank as the oil storage container 1. The single-point lubricator in the accompanying drawings is a grease tank version; simply replacing the grease tank with a grease cartridge will yield a grease cartridge version of the single-point lubricator. The structure of the grease cartridge and its mating structure with other components (e.g., the base 2 on which the grease cartridge is mounted) can be adopted in various ways now and in the future known to those skilled in the art, and this application does not limit this aspect.

[0060] The single-point lubricator provided in this embodiment can use a replaceable grease cartridge or a refillable grease reservoir, is compatible with lubricating oil or grease, and can be adapted to a variety of equipment.

[0061] In this embodiment, the single-point lubricator also includes a battery 7, an indicator light 8, and a control circuit board 9. The control circuit board 9 is connected to the battery 7, the indicator light 8, and the drive device 5. The control circuit board 9 is used to control the indicator light 8 and the drive device 5. Both the control circuit board 9 and the battery 7 are located inside the base 2.

[0062] The control circuit board 9 and the battery 7 are both located inside the base 2. The control circuit board 9 can be a PCB board. The battery 7 can be a rechargeable battery or a replaceable disposable battery. The indicator light 8 can be a light panel with multiple LEDs to indicate the working status of the single-point lubricator.

[0063] The single-point lubricator in this embodiment is battery powered, replaceable or rechargeable, and suitable for single-point installation; moreover, the oil storage container 1 can store the lubricant required for multiple lubrications, allowing for long-term use after a single installation, making it more convenient to use.

[0064] Based on the above embodiments, the single-point lubricator can be controlled by different control methods, such as buttons or magnetic induction. Buttons and magnetic induction can control the single-point lubricator by triggering a specific time point. The control method of the above-mentioned single-point lubricator is described below: In one embodiment, the single-point lubricator further includes a housing, with the lubricator body disposed inside the housing, and the housing serves a protective function; the housing may include a detachably connected upper cover 101 and a lower cover 102.

[0065] The outer casing is provided with a placement area for placing the magnetic cover 103. The placement area is set in accordance with the magnetic induction area on the base 2. The control circuit board 9 is provided with a magnetic induction component corresponding to the magnetic induction area. The control circuit board 9 sets the working state of the single-point lubricator according to the induction result of the magnetic induction component on the magnetic cover 103.

[0066] The magnetic sensing component can be a Hall element, magnetoresistive element, or integrated magnetic sensor chip commonly used in the prior art, used to sense the magnetic cover 103.

[0067] The workflow of the single-point lubricator in this embodiment is as follows: The single-point lubricator is installed on or near lubrication point 100. After installing battery 7, the lubricator is activated using magnetic cover 103, and the running time of the single-point lubricator is set. Once the running time is set, the single-point lubricator can operate according to the set time. Power is provided by motor 51, which drives gear mechanism 52 to rotate. Gear mechanism 52 transmits power to valve seat plunger 31, enabling it to achieve stable back-and-forth movement. During this process, the lubricant is precisely pushed through the oil passage in oil passage block 3 under the thrust of valve seat plunger 31, and finally delivered to lubrication point 100 from outlet connector 4.

[0068] In this embodiment, the single-point lubricator is controlled by placing a magnetic cover 103 in the placement area on the outer casing. The magnetic cover 103 does not need to be placed directly on the magnetic induction area on the base 2, but can be sensed by the magnetic induction component of the control circuit board 9. Therefore, the outer casing can adopt a sealed design to better protect the internal components, so that the single-point lubricator can work stably in harsh environments, such as places with a lot of dust and high humidity.

[0069] In another embodiment, the single-point lubricator also includes a housing, with the lubricator body disposed inside the housing; a button is provided on the base 2, and the button is electrically connected to the control circuit board 9, which sets the working state of the single-point lubricator according to the monitoring results of the button.

[0070] The button can be either pressed or released.

[0071] The workflow of the single-point lubricator in this embodiment is as follows: The single-point lubricator is installed on or near lubrication point 100. After installing battery 7, the single-point lubricator is activated by a button, and the running time is set. Once the running time is set, the single-point lubricator can operate according to the set time. Power is provided by motor 51, which drives gear mechanism 52 to rotate. Gear mechanism 52 transmits power to valve seat plunger 31, enabling it to achieve stable back-and-forth movement. During this process, the lubricant is precisely pushed through the oil passage in oil passage block 3 under the thrust of valve seat plunger 31, and finally delivered to lubrication point 100 from outlet connector 4.

[0072] In the above embodiments, the running time can be the operating cycle of a single-point lubricator.

[0073] The above-mentioned single-point lubricator can realize modes such as gear setting, manual operation, locking and unlocking, and restoration of original settings through control components (such as buttons, magnetic cover 103, etc.). The control method of the single-point lubricator is described in detail below with examples.

[0074] I. Gear Setting: When the single-point lubricator is in a dormant state, if the control circuit board 9 detects that the button is pressed or senses that the magnetic cover 103 is placed in the placement area on the housing and does not move, the working indicator light in the control indicator light 8 will flash red (for example, it will light up for one second every second). When the working indicator light lights up for the fifth time (after the first preset time), the control circuit board 9 controls the green gear indicator light of the current gear in the control indicator light 8 to light up. If at this time the button is detected to be released or the magnetic cover 103 is sensed to leave the placement area, and the button is pressed again or the magnetic cover 103 is placed back in the placement area within 2 seconds (the second preset time), the single-point lubricator is controlled to enter the gear setting state.

[0075] When the single-point lubricator is in the gear setting state, if it is detected that the button is pressed or the magnetic cover 103 is placed in the placement area and does not move, the gear will be automatically switched once per second. When it is detected that the button is released or the magnetic cover 103 leaves the placement area, the current gear will be set as the working gear and the single-point lubricator will be controlled to exit the gear setting state.

[0076] After exiting the gear setting state, the single-point lubricator runs once immediately, and the next automatic run interval is updated according to the new working gear. Different working gears can correspond to different automatic run intervals.

[0077] The indicator light 8 may include a working indicator light and multiple gear indicator lights (e.g., 5). The working indicator light can change color according to different situations (e.g., orange or red), and the gear indicator light can be a green light.

[0078] It should be noted that the above-mentioned flashing interval of the working indicator light and the setting of the timing of the sensing button / magnetic cover 103 are only an example of this embodiment and do not constitute a limitation on the technical solution of this application.

[0079] II. Manual Operation: When the single-point lubricator is in sleep mode, if the control circuit board 9 detects that the button is pressed or the magnetic cover 103 is placed in the placement area and not moving, the working indicator light in the control indicator light 8 will flash red (e.g., light up for one second every other second). If the working indicator light lights up for the second time and the button is detected to be released or the magnetic cover 103 is removed from the placement area, the single-point lubricator will be immediately started and run twice continuously, that is, lubricating point 100 will be added twice. After the operation is completed, the operation interval time is recalculated.

[0080] III. Locking and Unlocking: When the single-point lubricator is in sleep mode, if the control circuit board 9 detects that a button is pressed or the magnetic cover 103 is placed still in the placement area, the working indicator light in the control indicator light 8 will flash red (e.g., light up for one second at a time). When the working indicator light lights up for the 10th time, all five green gear indicator lights will light up together. At this time, if the control circuit board 9 detects that a button is released or the magnetic cover 103 leaves the placement area, the single-point lubricator will enter the lock setting state. In the lock setting state, all five gear lights will flash three times together, and the single-point lubricator will be locked. In the locked state, both automatic and manual operation of the single-point lubricator are prohibited, as is gear setting.

[0081] When the single-point lubricator is in the locked state, if the control circuit board 9 detects that the button is pressed or the magnetic cover 103 is placed still in the placement area, the working indicator light will flash red (e.g., flashing for one second at a time). When the working indicator light illuminates for the 10th time, all five green speed indicator lights will illuminate simultaneously. If the control circuit board 9 detects that the button is released or the magnetic cover 103 leaves the placement area at this time, the single-point lubricator will enter the unlock setting state. In the unlock setting state, all five green speed indicator lights will flash once together, the single-point lubricator will unlock, and will automatically run once immediately after unlocking.

[0082] IV. Restore Factory Settings: When the single-point lubricator is in sleep mode, if the control circuit board 9 detects that the button is pressed or the magnetic cover 103 is placed in the placement area and does not move, the working indicator light in the control indicator light 8 will flash red (for example, it will light up for one second every second); when the working indicator light lights up for the 20th time, the 5 green gear indicator lights will flash together. At this time, if the control circuit board 9 detects that the button is released or the magnetic cover 103 leaves the placement area, the single-point lubricator will be restored to the factory settings.

[0083] Other configurations and operations of the single-point lubricator according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0084] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0085] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0086] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. A single-point lubricator, characterized in that: The lubricator body includes an oil storage container (1), a base (2), an oil passage block (3), and an outlet connector (4); the oil storage container (1) is fixedly connected to the base (2) by threads, the oil outlet of the base (2) is connected to the oil inlet of the oil passage block (3), and the oil outlet of the oil passage block (3) is fixedly connected to the outlet connector (4) by threads; The oil circuit block (3) has an installation cavity. A valve seat plunger (31) is provided on one side of the installation cavity. The valve seat plunger (31) moves back and forth under the drive of the drive device (5). A valve seat rear plunger (33) and a valve seat rear plunger sleeve (34) are provided on the other side of the installation cavity. The rear end of the valve seat rear plunger (33) is connected to the valve seat rear plunger sleeve (34). An oil inlet channel (301) is provided between the valve seat plunger (31) and the valve seat rear plunger (33) in the installation cavity. The oil inlet channel (301) is connected to the oil inlet hole of the oil circuit block (3). A first through hole blocked by a one-way valve (35) is provided on the side wall of the rear end of the valve seat rear plunger (33). A spring (36) is fixedly connected between the one-way valve (35) and the rear side wall of the inner cavity of the valve seat rear plunger sleeve (34). A second through hole is provided on the lower side wall of the inner cavity of the valve seat rear plunger sleeve (34). The second through hole is connected to the oil outlet of the oil circuit block (3) through the oil outlet channel (302) set obliquely inside the oil circuit block (3).

2. The single-point lubricator according to claim 1, characterized in that: The mounting cavity is also provided with a valve seat plunger sleeve (32), which is threadedly fitted onto the front end of the valve seat plunger (31). There is a threaded gap between the valve seat plunger (31) and the valve seat plunger sleeve (32). An oil drain channel (304) is provided on the outside of the valve seat plunger sleeve (32), which connects the threaded gap with the oil inlet channel (301).

3. The single-point lubricator according to claim 2, characterized in that: The drive device (5) includes a motor (51) and a gear mechanism (52). The motor (51) drives the valve seat plunger (31) to rotate along the thread and move back and forth through the gear mechanism (52).

4. The single-point lubricator according to claim 1, characterized in that: An oil storage gap (305) is provided between the oil passage block (3) and the valve seat rear plunger sleeve (34), and the oil storage gap (305) is connected to the inner cavity of the valve seat rear plunger sleeve (34).

5. The single-point lubricator according to claim 1, characterized in that: The oil circuit block (3) is also provided with a grease nipple (6), which is connected to the oil inlet channel (301) through the oil replenishment channel (303) in the oil circuit block (3).

6. The single-point lubricator according to claim 1, characterized in that: A sealing ring is provided between the oil storage container (1) and the base (2), between the oil outlet of the base (2) and the oil inlet of the oil passage block (3), and between the oil outlet of the oil passage block (3) and the outlet connector (4).

7. The single-point lubricator according to claim 1, characterized in that: The oil storage container (1) is a replaceable grease cartridge or a refillable grease tank.

8. The single-point lubricator according to any one of claims 1-7, characterized in that: The single-point lubricator also includes a battery (7), an indicator light (8), and a control circuit board (9). The control circuit board (9) is connected to the battery (7), the indicator light (8), and the drive device (5). The control circuit board (9) and the battery (7) are both located inside the base (2).

9. The single-point lubricator according to claim 8, characterized in that: The single-point lubricator also includes a housing, and the main body of the lubricator is disposed inside the housing; The outer shell is provided with a placement area for placing a magnetic cover (103), the placement area is provided in correspondence with the magnetic induction area on the base (2), and the control circuit board (9) is provided with a magnetic induction component corresponding to the magnetic induction area; The control circuit board (9) sets the working state of the single-point lubricator according to the sensing result of the magnetic induction component on the magnetic cover (103).

10. The single-point lubricator according to claim 8, characterized in that: The single-point lubricator also includes a housing, and the main body of the lubricator is disposed inside the housing; The base (2) is provided with a button, which is electrically connected to the control circuit board (9). The control circuit board (9) sets the working state of the single-point lubricator according to the monitoring results of the button.

Images