Valve grease injection device

Abstract

The utility model belongs to the technical field of valve grease injection, and discloses a valve grease injection device. According to the valve grease injection device, a grease storage barrel is fixed to a rack, a grease pump is connected to the rack in a sliding mode, an inlet of the grease pump is communicated with a storage space, and an outlet of the grease pump is communicated with a valve through a valve grease injection hose; the output end of the driving part is connected with the metering part, the in-place detection part is fixedly connected to the grease pump, and the driving part can drive the metering part to move close to the grease storage barrel and move from a first counting position where the in-place detection part is not triggered to a second counting position where the in-place detection part is triggered; the first end of the abutting piece is connected with the grease pump, the second end of the abutting piece is in sliding fit with the grease injection opening, and the outer contour of the second end of the abutting piece is matched with the inner contour of the grease injection opening. And the controller is in communication connection with the grease pump, the driving piece and the in-place detection piece, so that the single-time grease injection amount of the valve is accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of valve grease injection technology, and in particular to a valve grease injection device. Background Technology

[0002] The safe operation of oil pipelines depends on pipeline valves, which require regular grease injection to ensure reliable use.

[0003] In existing technologies, manual or pneumatic grease injection tools are mostly used to inject grease into valves. However, different types of grease have different densities, making it difficult to calculate the amount of grease injected into a single valve injection based on flow rate. For manual grease injection tools, the amount of grease injected in a single injection is difficult to control and the workload is high. For pneumatic grease injection tools, air compressors and air blowers are required, which are inconvenient to operate and the amount of grease injected in a single injection is also difficult to control.

[0004] Therefore, there is an urgent need for a valve grease injection device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a valve grease injection device that can precisely control the amount of grease injected into a valve at one time, reducing workload and offering convenient operation.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A valve grease injection device is provided for injecting grease into a valve, the valve grease injection device comprising:

[0008] frame;

[0009] A grease storage tank is fixed on the frame and has a storage space for storing grease. The grease storage tank is provided with a grease inlet that communicates with the storage space.

[0010] The liposuction assembly includes a liposuction pump slidably connected to the frame, the inlet of the liposuction pump being connected to the storage space, and the outlet of the liposuction pump being connected to the valve via a valve liposuction hose.

[0011] The metering component includes a driving component, a metering component, and a positioning detection component. The output end of the driving component is connected to the metering component. The positioning detection component is fixedly connected to the liposuction pump. The driving component can drive the metering component to move closer to the fat storage tank and move from a first counting position that does not trigger the positioning detection component to a second counting position that triggers the positioning detection component.

[0012] A pressure member, the first end of which is connected to the liposuction pump, and the second end of which is slidably engaged with the liposuction port, wherein the outer contour of the second end of the pressure member matches the inner contour of the liposuction port;

[0013] The controller is communicatively connected to the liposuction pump, the drive unit, and the positioning detection unit. When the metering unit is at the second counting position and triggers the positioning detection unit, the controller controls the drive unit to stop the metering unit from moving. The controller is capable of counting the number of times the metering unit moves from the first counting position to the second counting position.

[0014] Preferably, the grease injection assembly further includes a grease injection valve and a grease extraction tube; the outlet of the grease injection valve is connected to the valve via a valve grease injection hose, and the inlet of the grease injection valve is connected to the outlet of the grease extraction pump; the outlet of the grease extraction tube is connected to the inlet of the grease extraction pump, and the inlet of the grease extraction tube is connected to the storage space.

[0015] Preferably, the grease injection assembly further includes an exhaust valve, which is connected to the grease extraction tube, and the inlet of the exhaust valve is connected to the grease extraction tube.

[0016] Preferably, the exhaust valve is further equipped with a pressure gauge, which is used to detect the pressure value at the inlet of the liposuction pump.

[0017] Preferably, the metering component further includes a guide member, which is fixedly connected to the liposuction pump and sleeved outside the metering component. The guide member has a through groove for the metering component to move, and the driving member can drive the metering component to move in the through groove.

[0018] Preferably, the metering component further includes a lead screw, the output end of the drive member is connected to one end of the lead screw to drive the lead screw to rotate, the other end of the lead screw is connected to the metering component, and the lead screw is threadedly engaged with the guide member.

[0019] Preferably, the metering component further includes a wear-resistant part, which is fixed to the liposuction pump. The wear-resistant part has a receiving groove, and the positioning detection part is fixedly connected to the bottom wall of the receiving groove and is completely housed within the receiving groove.

[0020] Preferably, the valve grease injection device further includes a limiting component, which is used to limit the movement of the grease pump relative to the grease storage tank.

[0021] Preferably, the limiting component includes a first limiting member fixed to the frame, the first limiting member being used to limit the maximum displacement of the liposuction pump moving towards the fat storage tank; and / or the limiting component includes a second limiting member fixed to the frame, the second limiting member being used to limit the maximum displacement of the liposuction pump moving away from the fat storage tank.

[0022] Preferably, a sealing element is provided at the connection position between the pressing element and the grease injection port.

[0023] The beneficial effects of this utility model are:

[0024] The valve grease injection device provided by this utility model uses a grease pump to extract grease from a grease tank, allowing the grease to flow from the pump inlet to the pump outlet, and then through the valve grease injection hose to inject grease into the valve. This achieves automated grease injection, making operation convenient and reducing the workload of grease injection. The vacuum negative pressure generated by the grease pump extracting grease from the grease tank causes the pressure member to slide closer to the grease tank. When the positioning detection member is in the first counting position without triggering the positioning detection member, the driving member drives the metering member to move closer to the grease tank and move it from the first counting position without triggering the positioning detection member. The device moves to the second counting position of the trigger position detection element. Since the detection distance of the position detection element is fixed, the moving distance from the first counting position to the second counting position is also fixed. The controller can count the number of times the metering element moves from the first counting position to the second counting position, thereby knowing the total moving distance of the metering element in a single valve grease injection process. Then, the actual grease injection amount of a single valve grease injection is calculated. When the single valve grease injection amount reaches the preset value, the controller can promptly control the drive element to stop the metering element from moving and control the grease pump to stop sucking grease, thus accurately controlling the single valve grease injection amount. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the valve grease injection device provided in this embodiment of the utility model;

[0026] Figure 2 yes Figure 1 A magnified view of a portion of the liposuction component;

[0027] Figure 3 yes Figure 1 A magnified view of a portion of the metering component.

[0028] In the picture:

[0029] 1. Rack;

[0030] 2. Grease reservoir; 21. Grease inlet;

[0031] 3. Liposuction assembly; 31. Liposuction pump; 32. Liposuction valve; 33. Liposuction cannula; 34. Air vent valve; 35. Pressure gauge;

[0032] 4. Metering component; 41. Drive component; 42. Metering component; 43. Position detection component; 44. Guide component; 441. Through groove; 45. Lead screw; 46. Wear-resistant component; 461. Receiving groove;

[0033] 5. Pressing components;

[0034] 6. Controller;

[0035] 7. Limiting component; 71. First limiting component; 72. Second limiting component. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] Different types of grease have different densities, making it difficult to calculate the amount of grease injected in a single valve injection based on flow rate. For manual grease injection tools, the injection volume is difficult to control and the workload is high. For pneumatic grease injection tools, air compressors and air blowers are required, making operation inconvenient and again, the injection volume is difficult to control. Therefore, calculating the grease volume for a single valve injection is key to solving these technical problems. The following section will discuss this further. Figures 1 to 3 The valve grease injection device provided in this embodiment will be described in detail.

[0041] Figure 1 A schematic diagram of the valve grease injection device provided in this embodiment is shown. Figure 2 It shows Figure 1 A magnified view of a portion of the grease injection component at point 3. Figure 3 yes Figure 1 A magnified view of a portion of the metering component at location 4. (See diagram below.) Figures 1 to 3As shown, the valve grease injection device provided in this example is used for grease injection into valves. It includes a frame 1, a grease storage tank 2, a grease injection assembly 3, a metering assembly 4, a pressure member 5, and a controller 6. The grease storage tank 2 is fixed on the frame 1 and has a storage space for storing grease. The grease storage tank 2 has a grease injection port 21 that communicates with the storage space. The grease storage tank 2 is used to store grease to be injected into the valve. The grease injection assembly 3 includes a grease pump 31, which is slidably connected to the frame 1. The inlet of the grease pump 31 is connected to the storage space, and the outlet of the grease pump 31 is connected to the valve through a valve grease injection hose. The grease pump 31 can extract the grease stored in the grease storage tank 2. The metering assembly 4 includes a drive member 41, a metering member 42, and a positioning detection member 43. The output end of the drive member 41 is connected to the metering member 42. The measuring element 42 is connected to the fat storage tank 2, and the position detection element 43 is fixedly connected to the liposuction pump 31. The driving element 41 can drive the measuring element 42 to move closer to the fat storage tank 2 and move from the first counting position without triggering the position detection element 43 to the second counting position that triggers the position detection element 43. The first end of the pressing element 5 is connected to the liposuction pump 31, and the second end of the pressing element 5 is slidably engaged with the fat injection port 21. The outer contour of the second end of the pressing element 5 matches the inner contour of the fat injection port 21. The controller 6 is communicatively connected to the liposuction pump 31, the driving element 41 and the position detection element 43 respectively. When the measuring element 42 is in the second counting position and triggers the position detection element 43, the controller 6 controls the driving element 41 to stop the measuring element 42 from moving and counts the number of times the measuring element 42 moves from the first counting position to the second counting position. It should be noted that after the liposuction pump 31 extracts the grease from the grease storage tank 2, a vacuum negative pressure exists inside the grease storage tank 2, which attracts the pressure-retaining member 5 to slide towards the remaining grease in the grease storage tank 2 to ensure that the air pressure inside and outside the grease storage tank 2 is balanced. Thus, the pressure-retaining member 5 drives the liposuction pump 31 to move closer to the grease storage tank 2. It should also be noted that the positioning detection member 43 in this embodiment can be a photoelectric switch or a laser sensor. Any positioning detection element that can be triggered by the measuring member 42 at a specific detection distance, but not triggered by the measuring member 42 beyond the specific detection distance, is within the protection scope of this embodiment and will not be described in detail here.

[0042] The valve grease injection device provided in this embodiment uses a grease pump 31 to extract grease from the grease reservoir 2, allowing the grease to flow from the inlet of the grease pump 31 through the outlet to the valve grease injection hose, thus achieving automated valve grease injection for convenient operation and reducing the workload of grease injection. The vacuum negative pressure generated by the grease pump 31 extracting grease from the grease reservoir 2 causes the pressure member 5 to slide closer to the grease reservoir 2. When the positioning detection member 43 is in the first counting position without triggering the positioning detection member 43, the driving member 41 drives the metering member 42 to move closer to the grease reservoir 2 without triggering the positioning detection member 43. The counting position moves to the second counting position of the trigger position detection element 43. Since the detection distance of the position detection element 43 is fixed, the moving distance from the first counting position to the second counting position is also fixed. The controller 6 can count the number of times the metering element 42 moves from the first counting position to the second counting position, thereby knowing the total moving distance of the metering element 42 in a single valve grease injection process, and then calculating the actual grease injection amount in a single valve grease injection. When the single valve grease injection amount reaches the preset value, the controller 6 can promptly control the drive element 41 to stop the metering element 42 from moving and control the grease pump 31 to stop sucking grease, thus accurately controlling the single valve grease injection amount.

[0043] In this embodiment, the grease injection assembly 3 also includes a grease injection valve 32 and a grease suction tube 33; the outlet of the grease injection valve 32 is connected to the valve through a valve grease injection hose, and the inlet of the grease injection valve 32 is connected to the outlet of the grease suction pump 31; the outlet of the grease suction tube 33 is connected to the inlet of the grease suction pump 31, and the inlet of the grease suction tube 33 is connected to the storage space, so that the grease stored in the storage space of the grease storage tank 2 can be stably extracted and injected into the valve.

[0044] Continue as Figures 1 to 3 As shown, the grease injection assembly 3 also includes an exhaust valve 34, which is connected to the grease suction tube 33. The inlet of the exhaust valve 34 is connected to the grease suction tube 33. Before starting a single valve grease injection operation, the pressure member 5 can move towards the grease storage tank 2 to press against the grease stored in the storage space of the grease storage tank 2, so that the air present in it is discharged from the exhaust valve 34 to the outside environment, preventing the residual air in the storage space of the grease storage tank 2 from affecting the accuracy of the single grease injection volume control of the valve grease injection device; at the same time, when the grease in the grease storage tank 2 is exhausted and a new grease storage tank 2 needs to be replaced or grease needs to be added to the grease storage tank 2, the exhaust valve 34 can be opened to break the vacuum state in the grease storage tank 2, thereby achieving the air pressure balance inside and outside the grease storage tank 2, so that the pressure member 5 can be removed from the grease injection port 21 for the replacement of a new grease storage tank 2 or the addition of grease to the grease storage tank 2;

[0045] Preferably, the exhaust valve 34 is also equipped with a pressure gauge 35, which is used to detect the internal pressure of the grease extraction tube 33. When the internal pressure of the grease extraction tube 33 is too high and exceeds the safe allowable pressure value, the valve grease injection operation can be stopped in time to improve the safety of the valve grease injection device.

[0046] In some embodiments, the valve grease injection device also includes an emergency stop switch. The emergency stop switch is connected to the live wire of the valve grease injection device circuit. When the pressure gauge 35 shows that the internal pressure value of the grease extraction tube 33 is too high and exceeds the safe allowable pressure value, the emergency stop switch can be pressed in time to cut off the valve grease injection device circuit, thereby stopping the valve grease injection operation and improving the safety of the valve grease injection device.

[0047] Continue as Figures 1 to 3 As shown, the metering component 4 also includes a guide 44, which is fixedly connected to the grease pump 31 and sleeved on the outside of the metering component 42. The guide 44 has a through groove 441 for the metering component 42 to move. The driving component 41 can drive the metering component 42 to move in the through groove 441, thereby guiding the movement direction of the metering component 42 when it moves from the first counting position to the second counting position, preventing the actual single movement distance of the metering component 42 from being inconsistent with the theoretical single movement distance of the metering component 42, and thus improving the accuracy of the valve grease injection device in controlling the single valve grease injection amount.

[0048] In this embodiment, the metering component 4 also includes a lead screw 45. The output end of the drive component 41 is connected to one end of the lead screw 45 to drive the lead screw 45 to rotate. The other end of the lead screw 45 is connected to the metering component 42. The lead screw 45 and the guide component 44 are threadedly coupled, thereby enabling the calculation of the number of rotations of the drive component 41 and the pitch of the lead screw 45 during a single valve grease injection process. This allows for the accurate calculation of the movement distance of the metering component 42 during a single valve grease injection process, and thus the calculation of the actual amount of grease injected in a single valve grease injection, thereby improving the accuracy of the valve grease injection device in controlling the amount of grease injected in a single valve grease injection. Specifically, the drive component 41 can be a stepper motor or a servo motor. The controller 6 can detect the number of pulses from the stepper motor or the negative feedback position information from the servo motor and send it to the controller 6. This allows the controller 6 to determine the actual number of rotations of the drive component 41 during a single valve grease injection, thereby accurately calculating the actual displacement distance of the metering component 42 and improving the accuracy of the valve grease injection device in controlling the amount of grease injected in a single valve grease injection.

[0049] Preferably, one end of the lead screw 45 is connected to the drive component 41 via belt drive, thereby ensuring smooth transmission and reducing the operating noise of the valve grease injection device.

[0050] Continue as Figures 1 to 3As shown, the metering component 4 also includes a wear-resistant part 46, which is fixed to the liposuction pump 31. The wear-resistant part 46 has a receiving groove 461, and the positioning detection part 43 is fixedly connected to the bottom wall of the receiving groove 461 and completely housed within the receiving groove 461, thereby protecting the positioning detection part 43 from damage due to impact. It should be noted that the wear-resistant part 46 can be made of materials such as silicon carbide, bakelite, or nylon, as long as it has wear resistance and is not easily worn.

[0051] Continue as Figures 1 to 3 As shown, the valve grease injection device also includes a limiting component 7, which limits the movement of the liposuction pump 31 relative to the grease reservoir 2. Specifically, the limiting component 7 includes a first limiting member 71, which is fixed to the frame 1. The first limiting member 71 limits the maximum displacement of the liposuction pump 31 in the direction closer to the grease reservoir 2. When the first limiting member 71 is triggered by the liposuction pump 31, the valve grease injection device can stop to ensure the safety of its use. Similarly, the limiting component 7 includes a second limiting member 72, which is fixed to the frame 1. The second limiting member 72 limits the maximum displacement of the liposuction pump 31 in the direction away from the grease reservoir 2. When the second limiting member 72 is triggered by the liposuction pump 31, the valve grease injection device can stop to ensure the safety of its use. It should be noted that the first limiting member 71 and the second limiting member 72 can be a proximity switch or a photoelectric switch. Any limiting element that can stop the valve grease injection device when triggered by the grease pump 31 and ensure the safety of the valve grease injection device is within the protection scope of this embodiment, and will not be described in detail here.

[0052] Preferably, a sealing element is provided at the connection between the pressure member 5 and the grease inlet 21 to ensure the airtightness of the grease storage tank 2. This prevents the grease storage tank 2 from being unable to form a negative pressure environment when the grease pump 31 draws grease from it, thus preventing the pressure member 5 from sliding closer to the grease storage tank 2. This would further lead to inaccurate movement distance of the grease pump 31, making it impossible to accurately calculate the movement distance of the metering element 42 for a single valve injection, and consequently reducing the accuracy of the valve's single grease injection volume control. Specifically, the sealing element is a sealing ring, which is fixedly connected to the second end of the pressure member 5, thereby ensuring the airtightness of the grease storage tank 2 when the pressure member 5 slides.

[0053] In some embodiments, the valve grease injection device further includes a tire, the tire's axle being rotatably connected to the frame 1, thereby pushing the valve grease injection device to move it to the valve to be greased, thereby further improving the ease of use of the valve grease injection device.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A valve grease injection device for injecting grease into valves, characterized in that, The valve grease injection device includes: Rack (1); A grease storage tank (2) is fixed on the frame (1). The grease storage tank (2) has a storage space for storing grease. A grease inlet (21) connected to the storage space is provided on the grease storage tank (2). The liposuction assembly (3) includes a liposuction pump (31), which is slidably connected to the frame (1). The inlet of the liposuction pump (31) is connected to the storage space, and the outlet of the liposuction pump (31) is connected to the valve through a valve liposuction hose. The metering component (4) includes a drive (41), a metering component (42), and a position detection component (43). The output end of the drive (41) is connected to the metering component (42). The position detection component (43) is fixedly connected to the liposuction pump (31). The drive (41) can drive the metering component (42) to move closer to the fat storage tank (2) and move from a first counting position that does not trigger the position detection component (43) to a second counting position that triggers the position detection component (43). The first end of the pressure member (5) is connected to the liposuction pump (31), and the second end of the pressure member (5) is slidably engaged with the liposuction port (21). The outer contour of the second end of the pressure member (5) matches the inner contour of the liposuction port (21). The controller (6) is communicatively connected to the liposuction pump (31), the drive unit (41), and the position detection unit (43). When the metering unit (42) is in the second counting position and triggers the position detection unit (43), the controller (6) controls the drive unit (41) to stop the metering unit (42) from moving. The controller (6) can count the number of times the metering unit (42) moves from the first counting position to the second counting position.

2. The valve grease injection device according to claim 1, characterized in that, The grease injection assembly (3) also includes a grease injection valve (32) and a grease suction tube (33); the outlet of the grease injection valve (32) is connected to the valve through a valve grease injection hose, and the inlet of the grease injection valve (32) is connected to the outlet of the grease suction pump (31); the outlet of the grease suction tube (33) is connected to the inlet of the grease suction pump (31), and the inlet of the grease suction tube (33) is connected to the storage space.

3. The valve grease injection device according to claim 2, characterized in that, The liposuction assembly (3) also includes an exhaust valve (34), which is connected to the liposuction tube (33), and the inlet of the exhaust valve (34) is connected to the liposuction tube (33).

4. The valve grease injection device according to claim 3, characterized in that, The exhaust valve (34) is also equipped with a pressure gauge (35), which is used to detect the pressure value at the inlet of the liposuction pump (31).

5. The valve grease injection device according to claim 1, characterized in that, The metering component (4) further includes a guide (44), which is fixedly connected to the liposuction pump (31). The guide (44) is sleeved outside the metering component (42). The guide (44) has a through groove (441) for the metering component (42) to move. The driving component (41) can drive the metering component (42) to move in the through groove (441).

6. The valve grease injection device according to claim 5, characterized in that, The metering component (4) also includes a lead screw (45). The output end of the drive member (41) is connected to one end of the lead screw (45) and can drive the lead screw (45) to rotate. The other end of the lead screw (45) is connected to the metering component (42). The lead screw (45) and the guide member (44) are threadedly driven together.

7. The valve grease injection device according to claim 6, characterized in that, The metering component (4) also includes a wear-resistant part (46), which is fixed to the liposuction pump (31). The wear-resistant part (46) has a receiving groove (461), and the positioning detection part (43) is fixedly connected to the bottom wall of the receiving groove (461) and is completely housed in the receiving groove (461).

8. The valve grease injection device according to claim 1, characterized in that, The valve grease injection device also includes a limiting component (7), which is used to limit the movement of the grease pump (31) relative to the grease tank (2).

9. The valve grease injection device according to claim 8, characterized in that, The limiting component (7) includes a first limiting member (71) fixed to the frame (1) and the first limiting member (71) is used to limit the maximum displacement of the liposuction pump (31) moving toward the fat storage tank (2); and / or the limiting component (7) includes a second limiting member (72) fixed to the frame (1) and the second limiting member (72) is used to limit the maximum displacement of the liposuction pump (31) moving away from the fat storage tank (2).

10. The valve grease injection device according to any one of claims 1-9, characterized in that, A sealing element is provided at the connection position between the pressure member (5) and the grease inlet (21).

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