Portable vacuum oil injection tool and vacuum oil injection method

Abstract

The invention relates to a portable vacuum oil injection tool and a vacuum oil injection method, the tool comprises a shell and a switch device, rollers are arranged at the bottom of the shell, one side of the shell extends to form a quick connector, and the quick connector is used for being connected with a bulb tube; the switch device comprises a plurality of switch groups; a vacuum box, an oil pump, a heater and a vacuum pump are arranged in the shell and sequentially connected in a closed-loop mode to form a circulating oil way, and the vacuum box, the oil pump, the heater and the bulb tube are sequentially connected in a closed-loop mode to form an oil injection path. The vacuum pump is respectively connected with the vacuum box and the bulb tube and is used for respectively vacuumizing the vacuum box and the bulb tube through the plurality of switch groups; one end of the oil pump is connected with the vacuum box, the other end of the oil pump is connected with the bulb tube, and the oil pump is used for injecting oil in the vacuum box into the bulb tube along the oil injection path through the multiple switch sets under the condition that the vacuum degree of the vacuum box and the vacuum degree of the bulb tube both meet the preset requirements. By adopting the tool, maintenance and vacuum oil injection can be carried out on the bulb tube on site, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a portable vacuum oil filling tool and a vacuum oil filling method. Background Art

[0002] X-ray tubes are the core components of medical computed tomography (CT) equipment, used to generate X-rays to achieve CT image scanning. When a tube fails, it usually needs to be returned to the factory for repair, causing the CT equipment to shut down for a long time, which has an adverse impact on imaging work.

[0003] Traditionally, in a factory, after a failure of a tube is repaired, it is necessary to refill the repaired tube with oil, and generally a vacuum oiling device in the factory is used to vacuum oil the tube.

[0004] However, the vacuum oiling device in the traditional factory is large in size and difficult to move, which means that the tube maintenance can only be carried out in the factory, resulting in low tube maintenance efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a portable vacuum oiling tool and vacuum oiling method that can be portable and moved to the site to perform on-site repairs on the tubes in medical scanning equipment in order to solve the above technical problems.

[0006] In a first aspect, the present application provides a portable vacuum oil filling tool, comprising: a housing (10) and a switch device (20), wherein a roller (30) is arranged at the bottom of the housing (10), and a quick connector (40) extends from one side of the housing (10), and the quick connector (40) is used to connect a ball tube (50); the switch device (20) comprises a plurality of switch groups;

[0007] A vacuum box (101), an oil pump (102), a heater (103) and a vacuum pump (104) are arranged inside the housing (10); the vacuum box (101), the oil pump (102) and the heater (103) are connected in a closed loop in sequence to form a circulating oil circuit; the vacuum box (101), the oil pump (102), the heater (103) and the ball tube (50) are connected in a closed loop in sequence to form an oil injection path;

[0008] The vacuum pump (104) is connected to the vacuum box (101) and the bulb tube (50) respectively, and is used to evacuate the vacuum box (101) and the bulb tube (50) respectively through a plurality of switch groups;

[0009] One end of the oil pump (102) is connected to the vacuum box (101), and the other end is connected to the ball tube (50) via the heater (103). The oil pump (102) is used to inject the oil in the vacuum box (101) into the ball tube (50) via a plurality of switch groups when the vacuum degrees of the vacuum box (101) and the ball tube (50) both reach preset requirements.

[0010] In one embodiment, the plurality of switch groups include a first switch group, a second switch group, a third switch group, and a fourth switch group;

[0011] The first switch group comprises a first solenoid valve and a fourth solenoid valve, the first solenoid valve being arranged between the vacuum pump (104) and the vacuum box (101), and the fourth solenoid valve being arranged between the heater (103) and the vacuum box (101), and being located at the oil inlet side of the vacuum box (101);

[0012] The second switch group comprises a second solenoid valve and a third solenoid valve, wherein the second solenoid valve and the third solenoid valve are both located between the vacuum pump (104) and the ball tube (50), and the second solenoid valve is close to the vacuum pump (104), and the third solenoid valve is close to the ball tube (50);

[0013] The third switch group includes a first solenoid valve, a third solenoid valve and a fourth solenoid valve, and the oil inlet end of the fourth solenoid valve is also connected to the middle point of the second solenoid valve and the third solenoid valve;

[0014] The fourth switch group includes a relay, and the relay is used to control the opening and closing of the oil pump (102).

[0015] In one embodiment, the first switch group further comprises a first manual valve, and the first manual valve is arranged between the heater (103) and the fourth solenoid valve.

[0016] In one embodiment, the portable vacuum oil filling tool further comprises an oil pot (105),

[0017] The first switch group also includes a second manual valve, which is arranged between the oil pot (105) and the vacuum box (101).

[0018] In one embodiment, the third switch group further comprises a third manual valve and a fourth manual valve, the third manual valve is arranged between the heater (103) and the bulb (50), and the fourth manual valve is arranged between the third solenoid valve and the fourth solenoid valve.

[0019] In one embodiment, at least one of a fifth manual valve, a sixth manual valve, a seventh manual valve and an eighth manual valve is further provided inside the housing (10); wherein,

[0020] One end of the fifth manual valve is connected to the quick connector on the oil outlet side of the ball pipe, and is used to release the pressure of the ball pipe (50);

[0021] One end of the sixth manual valve is connected to the vacuum box (101) and is used to release the pressure of the vacuum box (101);

[0022] One end of the seventh manual valve is connected to the vacuum box (101) and is used to discharge the oil in the vacuum box (101);

[0023] One end of the eighth manual valve is connected to the vacuum pump (104), and the other end is respectively connected to the vacuum box (101) and the bulb tube (50), and is used to disconnect the vacuum pump (104) to evacuate the vacuum box (101) and the bulb tube (50).

[0024] In a second aspect, the present application further provides a vacuum oil injection method, which is applied to the portable vacuum oil injection tool in the first aspect, and the method comprises:

[0025] Through the switch device, the vacuum pump is started to evacuate the vacuum box, and the oil pump is started to heat and circulate the oil in the vacuum box along the circulating oil circuit formed by the vacuum box, the oil pump and the heater;

[0026] Through the switch device, start the vacuum pump to evacuate the ball tube;

[0027] Through the switch device, start the oil pump to inject the oil in the vacuum box into the ball tube, and start the vacuum pump to evacuate the vacuum box.

[0028] In one embodiment, the vacuum pump is started to evacuate the vacuum box through the switch device, and the oil pump is started to heat and circulate the oil in the vacuum box along the circulating oil path formed by the vacuum box, the oil pump and the heater, including:

[0029] Opening the first switch group in the switch device and starting the vacuum pump to connect the pipeline between the vacuum pump and the vacuum box so that the vacuum pump can evacuate the vacuum box; and

[0030] Open the fourth switch group in the switch device to start the oil pump, and conduct the circulating oil circuit formed by the vacuum box, the oil pump and the heater to heat and circulate the oil in the vacuum box;

[0031] After the first preset time period ends, the first switch group and the fourth switch group are turned off.

[0032] In one embodiment, starting the vacuum pump to evacuate the bulb tube by means of a switch device includes:

[0033] Open the second switch group in the switch device and start the vacuum pump to connect the pipeline between the vacuum pump and the bulb tube, so that the vacuum pump can evacuate the bulb tube;

[0034] After the second preset time period ends, the second switch group is turned off.

[0035] In one embodiment, the oil pump is started to inject the oil in the vacuum box into the ball tube through the switch device, and the vacuum pump is started to evacuate the vacuum box, including:

[0036] The third switch group and the fourth switch group in the switch device are turned on to connect the pipelines between the vacuum box, the oil pump, the heater and the bulb tube to form an oil injection path, so that the oil pump injects the oil in the vacuum box into the bulb tube, and the pipeline between the vacuum pump and the vacuum box is connected to enable the vacuum pump to evacuate the vacuum box;

[0037] After the third preset time period ends, the third switch group and the fourth switch group are turned off.

[0038] The portable vacuum oil filling tool and vacuum oil filling method include a shell and a switch device, a roller is provided at the bottom of the shell, and a quick connector is extended from one side of the shell, and the quick connector is used to connect the ball tube; the switch device includes multiple switch groups; a vacuum box, an oil pump, a heater and a vacuum pump are provided inside the shell, the vacuum box, the oil pump and the heater are connected in a closed loop in sequence to form a circulating oil circuit, and the vacuum box, the oil pump, the heater and the ball tube are connected in a closed loop in sequence to form an oil filling path; the vacuum pump is connected to the vacuum box and the ball tube respectively, and is used to evacuate the vacuum box and the ball tube respectively through multiple switch groups; one end of the oil pump is connected to the vacuum box, and the other end is connected to the ball tube through the heater, and is used to inject the oil in the vacuum box into the ball tube through multiple switch groups when the vacuum degree of the vacuum box and the vacuum degree of the ball tube both meet the preset requirements. The vacuum oil filling tool is small in size, light in weight, easy to transport, easy to operate, and highly effective, and can realize the maintenance and vacuum oil filling of the ball tube at the user's site, thereby improving the maintenance efficiency of the ball tube. In addition, the use of the portable vacuum oiling tool can save the time of mailing the tube to the factory and then mailing it back from the factory, and can also avoid the risk of secondary damage to the tube during the mailing process, thereby increasing the service life of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the mechanical structure of a portable vacuum oil filling tool in one embodiment;

[0041] Figure 2 A schematic diagram of the mechanical structure of a portable vacuum oil filling tool in another embodiment;

[0042] Figure 3is a schematic diagram of the electrical structure of a switch device in one embodiment;

[0043] Figure 4 A schematic diagram of the mechanical structure of a portable vacuum oil filling tool in another embodiment;

[0044] Figure 5 A schematic diagram of the complete mechanical structure of a portable vacuum oil filling tool in one embodiment;

[0045] Figure 6 A schematic diagram of the working process of a portable vacuum oil filling tool in one embodiment;

[0046] Figure 7 Schematic diagram of the process of vacuum oil injection method in one embodiment.

[0047] Description of reference numerals:

[0048] 10: housing; 20: switch device; 30: roller; 40: quick connector; 50: ball tube;

[0049] 101: vacuum box; 102: oil pump; 103: heater; 104: vacuum pump; 105: oil pot;

[0050] D1: first solenoid valve; D2: second solenoid valve; D3: third solenoid valve; D4: fourth solenoid valve;

[0051] V1: first manual valve; V2: second manual valve; V3: third manual valve; V4: fourth manual valve;

[0052] V5: fifth manual valve; V6: sixth manual valve; V7: seventh manual valve; V8: eighth manual valve;

[0053] K1: first switch button; K2: second switch button; K3: third switch button;

[0054] K4: The fourth switch button. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] Normally, the maintenance of medical CT tubes is carried out in the manufacturer's factory. Once the CT tube fails and needs to be repaired, the CT equipment will be shut down for a long time, seriously affecting the scanning of CT images.

[0057] Traditionally, in a factory, after a tube is repaired, it is necessary to re-oil the repaired tube, and generally a vacuum oiling device in the factory is used to vacuum oil the tube. Existing vacuum oiling devices for tubes are generally large in size. The size of vacuum oiling devices for tubes currently on the market is 500*200*220 (cm), which exceeds the transportation range. In order to reduce the size of the tooling, vacuum oiling equipment with a vacuum chamber has also appeared. In actual operation, the tube needs to be placed in the vacuum chamber. Although the volume can be reduced to 180*100*100 (cm), its size still cannot meet the miniaturization requirements. In addition, it has many loose parts, is particularly heavy, and has a total weight of more than 500kg, which is not easy to transport.

[0058] Based on this, the embodiment of the present application proposes a small, lightweight, easy-to-operate portable vacuum oiling tool, the volume of which can be reduced to 60*80*100 (cm), and the total weight can be reduced to 40Kg; the tool is small in size and light in weight, can be shipped to the user's site, is convenient and easy to operate, and only takes one day to solve the user's tube maintenance problem, thereby improving the tube maintenance efficiency.

[0059] Figure 1 Schematic diagram of the structure of the portable vacuum oil filling tool in the embodiment of the present application. Figure 1 As shown, the portable vacuum oil filling tool comprises: a housing 10 and a switch device 20, a roller 30 is arranged at the bottom of the housing 10, and a quick connector 40 extends from one side of the housing 10, and the quick connector 40 is used to connect the ball tube 50; the switch device 20 comprises a plurality of switch groups; a vacuum box 101, an oil pump 102, a heater 103 and a vacuum pump 104 are arranged inside the housing 10, and the vacuum box 101, the oil pump 102 and the heater 103 are connected in a closed loop in sequence to form a circulating oil circuit, and the vacuum box 101, the oil pump 102, The heater 103 and the bulb 50 are connected in a closed loop in sequence to form an oil injection path; the vacuum pump 104 is connected to the vacuum box 101 and the bulb 50 respectively, and is used to evacuate the vacuum box 101 and the bulb 50 respectively through a plurality of switch groups; one end of the oil pump 102 is connected to the vacuum box 101, and the other end is connected to the bulb 50 through the heater 103, and is used to inject the oil in the vacuum box 101 into the bulb 50 through a plurality of switch groups when the vacuum degrees of the vacuum box 101 and the bulb 50 both meet the preset requirements.

[0060] Exemplarily, one or more switching devices may be respectively provided between the vacuum pump 104 and the vacuum box 101, between the vacuum pump 104 and the bulb 50, between the oil pump 102 (or the heater 103) and the vacuum box 101, and between the oil pump 102 (or the heater 103) and the bulb 50 as required. The switching device may include a flow regulating switch or a non-flow regulating switch, wherein the flow regulating switch may include an off state and different degrees of on states, and the non-flow regulating switch may include an off state and an on state.

[0061] Based on this, the switch device 20 can set up multiple switch groups based on the switch devices between different pipelines, wherein each switch group can be connected to at least one switch device, that is, the control of at least one switch device can be achieved by controlling a switch group (such as a switch button); each switch group can correspond to a different oil filling process or oil filling stage, that is, when the ball tube 50 is vacuum-filled with oil, each switch group on the switch device 20 can be triggered in turn to execute the vacuum oil filling process in turn, so that the vacuum oil filling operation of the ball tube can be carried out portablely and efficiently, thereby improving the ball tube oil filling efficiency.

[0062] It should be noted that the switch device 20 can be arranged at any position on the top of the housing 10, such as Figure 1 As shown, it can also be set at any position on the side of the shell 10, and each switch group in the switch device 20 is connected to the switch devices between different pipelines in the shell 10 by wired connection; optionally, the switch device 20 can also be set independently of the shell 10, and the connection between each switch group in the switch device 20 and the switch devices between different pipelines in the shell 10 is established by wireless connection; the embodiment of the present application does not specifically limit the setting position and connection method of the switch device 20.

[0063] Exemplarily, the multiple switch groups in the switch device 20 may include a first switch group, which can be used to control switch devices corresponding to the vacuum pumping of the vacuum box 101 and the oil circulation in the vacuum box 101. For example, when the first switch group is turned on, the pipeline between the vacuum pump 104 and the vacuum box 101 can be connected, so that the vacuum pump 104 can vacuum the vacuum box 101, and the circulating oil circuit of the vacuum box 101 can be connected to realize the oil circulation in the vacuum box 101. Through the oil circulation, the air in the oil can be released to improve the vacuum degree of the vacuum box.

[0064] Exemplarily, the multiple switch groups may also include a second switch group, which may be used to control switch devices corresponding to the vacuuming of the ball tube 50. For example, when the second switch group is turned on, the pipeline between the vacuum pump 104 and the ball tube 50 may be connected so that the vacuum pump 104 may vacuum the ball tube 50.

[0065] Exemplarily, the multiple switch groups may also include a third switch group, which can be used to control the switch devices corresponding to the oil injection of the oil pump 102. For example, by turning on the third switch group, the pipelines between the vacuum box 101, the oil pump 102, the heater 103 and the ball tube 50 are connected to form an oil injection path, so that the oil pump 102 injects the oil in the vacuum box 101 into the ball tube 50 after heating, thereby realizing vacuum oil injection of the ball tube 50.

[0066] It should be noted that, in the process of vacuum oiling the ball tube 50, the vacuum box 101 can be evacuated first, and then the ball tube 50 can be evacuated, and finally the vacuum oiling can be performed; or the ball tube 50 can be evacuated first, and then the vacuum box 101 can be evacuated, and finally the vacuum oiling can be performed; or the vacuum box 101 and the ball tube 50 can be evacuated at the same time, and finally the vacuum oiling can be performed.

[0067] Exemplarily, when performing vacuum oil filling, the vacuuming operation can also be performed simultaneously, that is, vacuuming and oil filling can be performed at the same time; for example: the third switch group and the first switch group can be opened at the same time, or the third switch group and the second switch group can be opened at the same time, or the third switch group, the first switch group and the second switch group can be opened at the same time.

[0068] Exemplarily, for the vacuum box 101 and the ball tube 50, air pressure detection devices, such as a barometer, can be respectively provided to detect the vacuum degree of the vacuum box 101 and the vacuum degree of the ball tube 50. Exemplarily, the portable vacuum oil filling tool can include a control device, which can be connected to the air pressure detection device of the vacuum box 101 and the air pressure detection device of the ball tube 50 respectively, so that during the process of evacuating the vacuum box, it is determined according to the air pressure value of the vacuum box 101 whether the vacuum degree of the vacuum box 101 meets the preset requirements, so that when the preset requirements are met, the first switch group is closed, thereby disconnecting the pipeline between the vacuum pump 104 and the vacuum box 101, that is, stopping the evacuation of the vacuum box; similarly, during the process of evacuating the ball tube, it is determined according to the air pressure value of the ball tube 50 whether the vacuum degree of the ball tube 50 meets the preset requirements, so that when the preset requirements are met, the second switch group is closed, thereby disconnecting the pipeline between the vacuum pump 104 and the ball tube 50, that is, stopping the evacuation of the ball tube. In this case, the control device can be electrically connected to the switch groups in the switch device 20 so as to automatically control each switch group.

[0069] Exemplarily, the housing 10 of the portable vacuum oil filling tool may also be a partially or completely transparent housing, or a partially or completely hollow housing, so that the user can observe the air pressure detection device of the vacuum box 101 and the air pressure detection device of the ball tube 50, so as to manually close the first switch group according to the air pressure value of the vacuum box 101, and manually close the second switch group according to the air pressure value of the ball tube 50. Alternatively, the portable vacuum oil filling tool may also include a display device, which can display the air pressure value of the vacuum box 101 and the air pressure value of the ball tube 50, so that the user can manually close the first switch group according to the air pressure value of the vacuum box 101 displayed on the display device, and manually close the second switch group according to the air pressure value of the ball tube 50 displayed on the display device. In this case, the display device can be electrically connected to the air pressure detection device of the vacuum box 101 and the air pressure detection device of the ball tube 50, respectively, so as to obtain and display the air pressure value of the vacuum box 101 and the air pressure value of the ball tube 50. In addition, the display device can be arranged at any position on the top or side of the housing 10 of the portable vacuum oil filling tool, and the embodiment of the present application does not make any specific limitation on this.

[0070] For example, when vacuuming, such as vacuuming the vacuum box 101 storing oil, or vacuuming the bulb 50 storing oil, since the oil may contain air, the air in the oil can also be extracted to increase the vacuum degree of the oil. Taking the vacuum box 101 as an example, a motion device can be provided in the portable vacuum oiling tool, and the motion device can drive the vacuum box 101 to move, such as left and right translational motion, rotational motion, up and down motion, etc.; or, a shaking device can be provided, that is, driving the vacuum box 101 to shake or triggering the oil shaking in the vacuum box 101 in the form of waves, etc.; or, a heater 103 can be provided, such as connecting the heater 103 to the oil outlet side of the oil pump 102, and the heater 103 is connected to the oil inlet of the vacuum box 101 through a switch device, so that the vacuum box 101, the oil pump 102 and the heater 103 are connected in a closed loop in sequence to form an oil circulation. When the oil is heated to a certain temperature range, such as 50°C-55°C, the air content in the oil is the lowest, that is, the solubility of air in oil is the lowest, so that the best vacuum degree can be achieved.

[0071] The portable vacuum oil filling tool comprises a shell and a switch device, a roller is arranged at the bottom of the shell, and a quick connector is extended at one side of the shell, and the quick connector is used to connect the ball tube; the switch device comprises a plurality of switch groups; a vacuum box, an oil pump, a heater and a vacuum pump are arranged inside the shell, the vacuum box, the oil pump and the heater are connected in a closed loop in sequence to form a circulating oil circuit, and the vacuum box, the oil pump, the heater and the ball tube are connected in a closed loop in sequence to form an oil filling path; the vacuum pump is connected to the vacuum box and the ball tube respectively, and is used to evacuate the vacuum box and the ball tube respectively through a plurality of switch groups; one end of the oil pump is connected to the vacuum box, and the other end is connected to the ball tube through a heater, and is used to inject the oil in the vacuum box into the ball tube through a plurality of switch groups when the vacuum degree of the vacuum box and the vacuum degree of the ball tube both meet the preset requirements. The vacuum oil filling tool is small in size, light in weight, easy to transport, easy to operate, and highly effective, and can realize the maintenance and vacuum oil filling of the ball tube at the user's site, thereby improving the maintenance efficiency of the ball tube. In addition, the use of the portable vacuum oiling tool can save the time of mailing the tube to the factory and then mailing it back from the factory, and can also avoid the risk of secondary damage to the tube during the mailing process, thereby increasing the service life of the tube.

[0072] In an exemplary embodiment, Figure 2 As shown, the above-mentioned multiple switch groups may include a first switch group, a second switch group, a third switch group and a fourth switch group; wherein the first switch group may include a first solenoid valve D1 and a fourth solenoid valve D4, the first solenoid valve D1 is arranged between the vacuum pump 104 and the vacuum box 101, and the fourth solenoid valve D4 is arranged between the heater 103 and the vacuum box 101, and is located on the oil inlet side of the vacuum box 101; the second switch group may include a second solenoid valve D2 and a third solenoid valve D3, the second solenoid valve D2 and the third solenoid valve D3 are both located between the vacuum pump 104 and the ball tube 50, and the second solenoid valve D2 is close to the vacuum pump 104, and the third solenoid valve D3 is close to the ball tube 50; the third switch group may include a first solenoid valve D1, a third solenoid valve D3 and a fourth solenoid valve D4, and the oil inlet end of the fourth solenoid valve D4 is also connected to the middle point of the second solenoid valve D2 and the third solenoid valve D3; the fourth switch group may include a relay (not shown in the figure), and the relay is used to control the opening and closing of the oil pump 102.

[0073] For example, continue to refer to Figure 2As shown, the first switch group can be the first switch button K1, the second switch group can be the second switch button K2, the third switch group can be the third switch button K3, and the fourth switch group can be the fourth switch button K4, wherein the first switch button K1 is electrically connected to the first solenoid valve D1 and the fourth solenoid valve D4, the second switch button K2 is electrically connected to the second solenoid valve D2 and the third solenoid valve D3, the third switch button K3 is electrically connected to the first solenoid valve D1, the third solenoid valve D3 and the fourth solenoid valve D4, and the fourth switch button K4 is electrically connected to the relay; exemplarily, the initial state of each switch button can be a closed state. When the switch button is pressed for the first time, the solenoid valve electrically connected to the switch button can be turned on, thereby turning on the corresponding pipeline. When the switch button is pressed for the second time, the solenoid valve electrically connected to the switch button can be disconnected, thereby disconnecting the corresponding pipeline.

[0074] refer to Figure 3 As shown, it shows an electrical schematic diagram of a portable vacuum oil filling tool, wherein the first switch button K1, the second switch button K2, the third switch button K3 and the fourth switch button K4 can all be double-pole single-throw switches for connecting two or more solenoid valves; of course, the fourth switch button K4 can also be a single-pole single-throw switch for connecting a relay that controls an oil pump.

[0075] Exemplarily, an indicator light corresponding to each switch button can also be set in the switch device 20, so that the state of the switch button can be judged according to the on and off of the indicator light. When the switch button is turned on, the corresponding indicator light is on, and when the switch button is turned off, the corresponding indicator light is off.

[0076] Exemplarily, when vacuum oiling the bulb, first connect the bulb 50 to the portable vacuum oiling tool through the quick connector 40, then power on the tool, turn on the first switch button K1 and the fourth switch button K4, and the corresponding indicator lights up, that is, the first solenoid valve D1 and the fourth solenoid valve D4 are turned on, and the vacuum pump 104 is started to evacuate the vacuum box 101, and the oil pump 102 is started to realize the oil circulation of the vacuum box 101. When the air pressure value of the barometer on the vacuum box 101 stabilizes within the first preset air pressure range for a certain period of time, the first switch button K1 and the fourth switch button K4 are turned off; then, the second switch button K2 is turned on, and the corresponding indicator lights up, that is, the second solenoid valve D2 and the third solenoid valve D3 are turned on, and the vacuum pump 104 is started to evacuate the bulb 50. Evacuate the air. When the air pressure value of the barometer on the bulb 50 stabilizes in the second preset air pressure range for a certain period of time, turn off the second switch button K2. Finally, turn on the third switch button K3 and the fourth switch button K4, and the corresponding indicator lights are on, that is, the first solenoid valve D1, the third solenoid valve D3 and the fourth solenoid valve D4 are turned on, and the oil pump 102 is started to inject the oil in the vacuum box 101 into the bulb 102, and the vacuum box 101 is started to evacuate the air. After a certain period of time or when oil drips from the oil inlet of the vacuum box, start the internal oil circulation of the bulb 50 so that the bulb 50 is completely filled with oil. After the internal circulation of the bulb 50 is opened for a certain period of time, turn off the internal circulation of the bulb 50, and turn off the third switch button K3 and the fourth switch button K4. Then turn off the power and remove the bulb.

[0077] Exemplarily, in the portable vacuum oil filling tool, some flow control valves other than the above-mentioned solenoid valves can be provided, that is, on the basis of the conduction of the above-mentioned solenoid valves, the flow rate of the oil can also be controlled by the flow control valve; optionally, the flow control valve can be a manual valve or a semi-automatic valve, and a control switch for each semi-automatic valve can also be provided in the above-mentioned switch device 20, and the control switch can be used to control the conduction degree of the corresponding semi-automatic valve, that is, the oil flow rate; for example: the control switch can be a knob structure, a sliding rod structure, or a plurality of button structures of different degrees, etc., and the embodiments of the present application do not make specific limitations on this.

[0078] The following takes the flow control valve as a manual valve as an example. Figure 4As shown, illustratively, the first switch group may further include a first manual valve V1, which is disposed between the heater 103 and the fourth solenoid valve D4 and close to the heater 103, that is, the first manual valve V1 may be disposed between the heater 103 and the intersection of the third solenoid valve D3 and the fourth solenoid valve D4. When the first switch button K1 is turned on, the first manual valve V1 may be manually opened, thereby starting the vacuum pump 104 to evacuate the vacuum box 101, and starting the oil pump 102 to form an oil circulation of the vacuum box 101. In this process, the flow rate of the oil circulation may be controlled by adjusting the first manual valve V1.

[0079] Continue to refer Figure 4 As shown, the portable vacuum oil filling tool may also include an oil pot 105, and the first switch group may also include a second manual valve V2, and the second manual valve V2 is arranged between the oil pot 105 and the vacuum box 101; it should be noted that when there are some identical pipelines between the second manual valve V2 and the vacuum box 101, and between the fourth solenoid valve D4 and the vacuum box 101, the second manual valve V2 should be arranged between the intersection of the oil pot 105, the fourth solenoid valve D4 and the vacuum box 101, that is, close to the position of the oil pot 105. Based on this, during the process of evacuating the vacuum box 101, or at other stages, if it is necessary to fill the vacuum box 101 with oil, the second manual valve V2 can be manually opened to fill the vacuum box 101 with oil through the oil pot 105. In addition, it should be noted that the second manual valve V2 can be divided into the first switch group or other switch groups, and the embodiment of the present application does not make specific restrictions on this.

[0080] Continue to refer Figure 4 As shown, the third switch group may also include a third manual valve V3 and a fourth manual valve V4. The third manual valve V3 is arranged between the heater 103 and the ball tube 50, and the fourth manual valve V4 is arranged between the third solenoid valve D3 and the fourth solenoid valve D4. Based on this, when the ball tube is vacuum-filled with oil in the third stage, the third switch button K3 (i.e., the first solenoid valve D1, the third solenoid valve D3 and the fourth solenoid valve D4), the fourth switch button K4 (i.e., the oil pump 102) and the third manual valve V3 and the fourth manual valve V4 may be opened manually. At this time, the first manual valve V1 and the second manual valve V2 are in a closed state, and the oil pump 102 injects the oil in the vacuum box 101 into the ball tube 50. When the ball tube 50 is full of oil, the excess oil may flow into the vacuum box 101 along the pipelines of the third solenoid valve D3, the fourth manual valve V4 and the fourth solenoid valve D4 to form an oil cycle. During the oil filling process, the flow rate of the oil filling may be adjusted by adjusting the third manual valve V3 and / or the fourth manual valve V4.

[0081] Continue to refer Figure 4As shown, the portable vacuum oil filling tool can also include a heater 103, and the heater 103 is arranged between the oil pump 102 and the ball tube 50. Optionally, the heater 103 can be arranged at a position close to the oil pump 102, that is, between the intersection of the oil pump 102 and the first manual valve V1 and the third manual valve V3; based on this, during the vacuum box evacuation in the first stage, the oil can be heated by the heater 103 to form an oil circulation to discharge the air content in the oil; similarly, during the ball tube vacuum oil filling in the third stage, the oil can also be heated by the heater 103 to discharge the air content in the oil, so as to increase the vacuum degree of vacuum oil filling and improve the vacuum oil filling effect.

[0082] It should be noted that the vacuum pump, heater, etc. in the portable vacuum oil filling tool can also be connected to the power interface of the tool so that the vacuum pump and heater can be started after power is supplied.

[0083] Exemplarily, at least one of a fifth manual valve, a sixth manual valve, a seventh manual valve and an eighth manual valve is further provided inside the housing 10 of the portable vacuum oil filling tool; wherein, one end of the fifth manual valve is connected to the quick connector on the oil outlet side of the ball tube, and is used to release the pressure of the ball tube 50, that is, after the ball tube is filled with oil, the fifth manual valve can be manually opened to release the pressure of the ball tube 50, so that the ball tube 50 can be quickly removed from the quick connector 40; one end of the sixth manual valve is connected to the vacuum box 101, and is used to release the pressure of the vacuum box 101, for example: when the vacuum box 101 needs to be opened, the pressure of the vacuum box 101 can be released by manually opening the sixth manual valve, so that the vacuum box 101 can be opened for operation. Inspection or maintenance; one end of the seventh manual valve is connected to the vacuum box 101, which is used to discharge the oil in the vacuum box 101. For example, when the oil in the vacuum box 101 does not meet the oil usage standards, such as when impurities appear, the seventh manual valve can be manually opened to discharge the oil in the vacuum box 101; one end of the eighth manual valve is connected to the vacuum pump 104, and the other end is respectively connected to the vacuum box 101 and the bulb tube 50, which is used to disconnect the vacuum pump 104 from vacuumizing the vacuum box 101 and the bulb tube 50. For example, during the vacuuming process, if oil is sucked into the vacuum pump 104, the eighth manual valve can be quickly manually closed to disconnect the vacuuming process in time to prevent oil from entering the vacuum pump 104 and causing damage to the vacuum pump 104.

[0084] It should be noted that, during the oil injection process, the fifth manual valve, the sixth manual valve and the seventh manual valve are closed by default, and the eighth manual valve is opened by default to facilitate vacuum extraction.

[0085] In an exemplary embodiment, a relatively complete structural schematic diagram of a portable vacuum oil filling tool is provided, such as Figure 5As shown, it includes: a vacuum box 1, an oil pump 2, a tooling wheel 3, a tooling frame 4, a heater 5, an oil filter 6, a pipeline 7, a quick connector 8, a ball tube 9, a vacuum pump 10, a manual valve 11, an oil-gas separator 12, a control panel 13, a control switch 14, an air filter 15, a pressure gauge 16, and an oil filter device 17.

[0086] The control panel 13 is one of the manifestations of the switch device 20 , and the control switch 14 can be the switch button.

[0087] The principle diagram of vacuum oil filling of the ball tube based on the portable vacuum oil filling tool is as follows Figure 6 As shown, first, before the tooling is powered on, it is necessary to check and make sure that all valves, including solenoid valves and manual valves, are in a closed state, and connect the ball tube through a quick connector; secondly, enter the first stage, manually open the first manual valve V1, and turn on the first switch button K1 and the fourth switch button K4 in the control panel 13, that is, turn on the first solenoid valve D1 ( Figure 6 Solenoid valve 1), the fourth solenoid valve D4 ( Figure 6 The electromagnetic valve 4) and the relay in the vacuum box 1 are activated to start the vacuum pump 10 to evacuate the vacuum box 1, and at the same time, the oil pump 2 is started to form an oil circulation in the vacuum box 1, such as Figure 6 The first pipeline ① marked in the middle; in the first stage, if it is necessary to replenish oil to the vacuum box 1, the second manual valve V2 can be manually opened to replenish oil to the vacuum box 1 through the oil pot; when the air pressure value of the pressure gauge 16 of the vacuum box 1 is stable in the first preset air pressure range for a certain period of time, close the first switch button K1, the fourth switch button K4 and the first manual valve V1.

[0088] Next, the second stage is entered, and the second switch button K2 in the control panel 13 is turned on, that is, the second solenoid valve D2 is turned on ( Figure 6 Solenoid valve 2) and the third solenoid valve D3 ( Figure 6 The electromagnetic valve 3 in the vacuum pump 10 is used to evacuate the ball tube 9. Figure 6 The second pipeline ② marked in the middle; when the air pressure value of the barometer 16 of the bulb 9 is stable in the second preset air pressure range for a certain period of time, the second switch button K2 is turned off. It should be noted that the operation of vacuuming the bulb can be performed once or multiple times to ensure that the bulb is completely in a vacuum state, that is, the vacuum degree is greater than the preset vacuum degree threshold.

[0089] Then, the third stage is entered, the third manual valve V3 and the fourth manual valve V4 are manually opened, and the third switch button K3 and the fourth switch button K4 in the control panel 13 are turned on, that is, the third solenoid valve D3 is turned on ( Figure 6 Solenoid valve 3), the fourth solenoid valve D4 ( Figure 6The electromagnetic valve 4) and the relay in the vacuum box 1 are used to start the vacuum pump 10 to evacuate the vacuum box 1, and at the same time, the oil pump 2 is started to inject the oil in the vacuum box 1 into the ball tube 9, that is, vacuum is evacuated and oil is injected at the same time; after a certain period of time or when oil drips from the oil filter device 17 in the vacuum box 1, the internal oil circulation of the ball tube 9 is started, and after a certain period of time, the oil circulation of the ball tube 9, the third manual valve V3, the fourth manual valve V4, the third switch button K3 and the fourth switch button K4 are closed.

[0090] Finally, the fifth manual valve V5 is opened manually, and when the atmospheric pressure of the quick connectors 8 at both ends of the bulb tube 9 is close to the atmospheric pressure of the surrounding environment, the quick connectors 8 are removed to take out the bulb tube 9.

[0091] In addition, a sixth manual valve V6 is provided in the portable vacuum oiling tool. The sixth manual valve V6 is arranged between the intersection of the air filter 15, the vacuum box 1 and the first solenoid valve D1 (solenoid valve 1). When the vacuum box 1 needs to be repaired, the sixth manual valve V6 can be manually opened to allow air to enter after passing through the air filter 15. Therefore, when the atmospheric pressure of the vacuum box 1 is close to the atmospheric pressure of the surrounding environment, it is convenient to perform relevant maintenance operations on the vacuum box 1.

[0092] In addition, a seventh manual valve V7 is also provided in the portable vacuum oiling tool, one end of which is connected to the vacuum box 1. When impurities appear in the oil in the vacuum box 1 and the oil quality does not meet the standards, the seventh manual valve V7 can be manually opened to completely discharge the oil in the vacuum box 1 so that the vacuum box 1 can be refilled with oil through an oil pot.

[0093] Furthermore, in the portable vacuum oil filling tool, an eighth manual valve V8 is also provided. When the vacuum box 1 and / or the ball tube 9 are evacuated, the oil in the vacuum box 1 and / or the ball tube 9 may be extracted together with the air. After the gas carrying the oil passes through the oil-gas separation device 12, the oil-gas separation can be performed, and the separated oil will be stored in the oil-gas separation device 12. When the oil in the oil-gas separation device 12 is about to overflow, the overflowed oil will enter the vacuum pump 10, causing serious damage to the vacuum pump 10. Therefore, in this case, the eighth manual valve V8 can be manually closed to isolate the overflowed oil in time to avoid causing serious damage to the vacuum pump 10. It should be noted that during the entire process of oil filling, the eighth manual valve V8 is always in an open state to facilitate vacuum operation.

[0094] In actual use scenarios, when using the portable vacuum oiling tool to vacuum oil the tube, several core parameters should also be considered, such as the vacuuming parameters, which require a precise range. When the vacuum pump has a high vacuuming strength, it may cause leakage at the tube interface, causing secondary damage. The vacuum pump has a low vacuuming strength and does not meet the pressure resistance requirements. In addition, in each operation step, the vacuum pressure requirements are different, and each step should have a reasonable vacuum range. In addition, the time parameter, the time control of each step, must not only meet the vacuum requirements, but also improve the timeliness. The time requirements of each step can be determined based on multiple experimental results, so as to obtain the best vacuum oiling solution.

[0095] In an exemplary embodiment, a vacuum oil injection method is also provided, which can be applied to the portable vacuum oil injection tool in any of the above embodiments, such as Figure 7 As shown, the method includes:

[0096] Step 701, through the switch device, start the vacuum pump to evacuate the vacuum box, and start the oil pump to heat and circulate the oil in the vacuum box along the circulating oil circuit formed by the vacuum box, the oil pump and the heater.

[0097] Exemplarily, the switch device may include a first switch group and a fourth switch group, the first switch group may include a first solenoid valve, a fourth solenoid valve and a first manual valve, and the fourth switch group may include a relay. Based on this, the first switch group in the switch device may be opened and the vacuum pump may be started to conduct the pipeline between the vacuum pump and the vacuum box, so that the vacuum pump may evacuate the vacuum box; and the fourth switch group in the switch device may be opened to start the oil pump and conduct the circulating oil circuit formed by the vacuum box, the oil pump and the heater to heat and circulate the oil in the vacuum box, that is, to realize the oil circulation in the vacuum box, release the air in the oil, and improve the vacuum effect of the vacuum box; and then, after the first preset time period ends, the first switch group and the fourth switch group are turned off. Among them, the first manual valve in the first switch group can be manually opened and closed, and the first solenoid valve and the fourth solenoid valve can be electrically connected to the same first switch button, and the opening and closing operations are realized through the first switch button.

[0098] Exemplarily, the first preset time period may be 30 minutes, and the pressure range of the vacuum box may be less than 100 Pa.

[0099] Step 702, start the vacuum pump to evacuate the bulb tube through the switch device.

[0100] Exemplarily, the switch device may further include a second switch group, which may include a second solenoid valve and a third solenoid valve. Based on this, the second switch group in the switch device may be opened and the vacuum pump may be started to conduct the pipeline between the vacuum pump and the bulb tube, so that the vacuum pump evacuates the bulb tube; and then, after the second preset time period, the second switch group may be turned off. The second solenoid valve and the third solenoid valve may be electrically connected to the same second switch button, and the opening and closing operations may be realized through the second switch button.

[0101] Exemplarily, the pressure range of the bulb tube may be less than 200 Pa. For the bulb tube, the vacuum pumping operation may be performed repeatedly for multiple times, and the pressure range of the bulb tube after closing may be less than 500 Pa.

[0102] Step 703, through the switch device, start the oil pump to inject the oil in the vacuum box into the ball tube, and start the vacuum pump to evacuate the vacuum box.

[0103] Exemplarily, the switch device may further include a third switch group, which may include a first solenoid valve, a third solenoid valve, a fourth solenoid valve, a third manual valve and a fourth manual valve. Based on this, the third switch group and the fourth switch group in the switch device can be opened to connect the pipelines between the vacuum box, the oil pump, the heater and the bulb to form an oil injection path, so that the oil pump injects the oil in the vacuum box into the bulb, and connects the pipeline between the vacuum pump and the vacuum box to enable the vacuum pump to evacuate the vacuum box; then, after the third preset time period ends, the third switch group and the fourth switch group are turned off.

[0104] For example, the third preset time may include two time periods. After the first time period (e.g., 60 minutes) ends, the oil circulation inside the bulb can be started. After the first time period (e.g., 15 minutes) ends, the oil circulation inside the bulb, the third switch group, and the fourth switch group can be closed. The third manual valve and the fourth manual valve in the third switch group can be manually opened and closed, and the first solenoid valve, the third solenoid valve, and the fourth solenoid valve can be electrically connected to the same third switch button, and the opening and closing operations are realized through the third switch button.

[0105] By adopting the above-mentioned vacuum oiling method, when the portable vacuum oiling tool is mailed to the user's site, the maintenance personnel can repair the tube and use the tool to vacuum oil the repaired tube, which can greatly reduce the maintenance time cost of the tube, improve the maintenance efficiency of the tube, and thus reduce the downtime loss of the CT equipment.

[0106] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A portable vacuum oil filling tool, characterized in that: include: A housing (10) and a switch device (20), wherein a roller (30) is disposed at the bottom of the housing (10), and a quick connector (40) extends from one side of the housing (10), wherein the quick connector (40) is used to connect a ball tube (50); the switch device (20) comprises a plurality of switch groups; A vacuum box (101), an oil pump (102), a heater (103) and a vacuum pump (104) are arranged inside the housing (10); the vacuum box (101), the oil pump (102) and the heater (103) are sequentially connected in a closed loop to form a circulating oil circuit; the vacuum box (101), the oil pump (102), the heater (103) and the ball tube (50) are sequentially connected in a closed loop to form an oil injection path; The vacuum pump (104) is connected to the vacuum box (101) and the bulb (50) respectively, and is used to evacuate the vacuum box (101) and the bulb (50) respectively through the multiple switch groups; One end of the oil pump (102) is connected to the vacuum box (101), and the other end is connected to the ball tube (50) via the heater (103), and is used to inject the oil in the vacuum box (101) into the ball tube (50) along the oil injection path via the multiple switch groups when the vacuum degrees of the vacuum box (101) and the ball tube (50) both meet preset requirements.

2. The portable vacuum oil filling tool according to claim 1, characterized in that: The plurality of switch groups include a first switch group, a second switch group, a third switch group and a fourth switch group; The first switch group comprises a first solenoid valve and a fourth solenoid valve, the first solenoid valve being arranged between the vacuum pump (104) and the vacuum box (101), and the fourth solenoid valve being arranged between the heater (103) and the vacuum box (101) and located at an oil inlet side of the vacuum box (101); The second switch group comprises a second solenoid valve and a third solenoid valve, wherein the second solenoid valve and the third solenoid valve are both located between the vacuum pump (104) and the ball tube (50), and the second solenoid valve is close to the vacuum pump (104), and the third solenoid valve is close to the ball tube (50); The third switch group includes the first solenoid valve, the third solenoid valve and the fourth solenoid valve, and the oil inlet end of the fourth solenoid valve is also connected to the middle point of the second solenoid valve and the third solenoid valve; The fourth switch group comprises a relay, and the relay is used to control the opening and closing of the oil pump (102).

3. The portable vacuum oil filling tool according to claim 2, characterized in that: The first switch group further comprises a first manual valve, which is arranged between the heater (103) and the fourth solenoid valve.

4. The portable vacuum oil filling tool according to claim 2, characterized in that: The tool also includes an oil pot (105), The first switch group further comprises a second manual valve, which is arranged between the oil pot (105) and the vacuum box (101).

5. The portable vacuum oil filling tool according to claim 2, characterized in that: The third switch group further comprises a third manual valve and a fourth manual valve, the third manual valve being arranged between the heater (103) and the bulb (50), and the fourth manual valve being arranged between the third solenoid valve and the fourth solenoid valve.

6. The portable vacuum oil filling tool according to claim 1, characterized in that: At least one of a fifth manual valve, a sixth manual valve, a seventh manual valve and an eighth manual valve is also arranged inside the housing (10); wherein: One end of the fifth manual valve is connected to the quick connector on the oil outlet side of the ball pipe, and is used to release the pressure of the ball pipe (50); One end of the sixth manual valve is connected to the vacuum box (101) and is used to release the pressure of the vacuum box (101); One end of the seventh manual valve is connected to the vacuum box (101) and is used to discharge the oil in the vacuum box (101); One end of the eighth manual valve is connected to the vacuum pump (104), and the other end is respectively connected to the vacuum box (101) and the bulb tube (50), and is used to disconnect the vacuum pump (104) to evacuate the vacuum box (101) and the bulb tube (50).

7. A vacuum oil injection method, characterized in that: Applied to the portable vacuum oil filling tool as claimed in any one of claims 1 to 6, the method comprising: By means of the switch device, the vacuum pump is started to evacuate the vacuum box, and the oil pump is started to heat and circulate the oil in the vacuum box along the circulating oil path formed by the vacuum box, the oil pump and the heater; By means of the switch device, the vacuum pump is started to evacuate the ball tube; The oil pump is started through the switch device to inject the oil in the vacuum box into the ball tube, and the vacuum pump is started to evacuate the vacuum box.

8. The method according to claim 7, characterized in that The method starts the vacuum pump to evacuate the vacuum box through the switch device, and starts the oil pump to heat and circulate the oil in the vacuum box along the circulating oil path formed by the vacuum box, the oil pump and the heater, including: Opening the first switch group in the switch device and starting the vacuum pump to connect the pipeline between the vacuum pump and the vacuum box, so that the vacuum pump evacuates the vacuum box; and Opening the fourth switch group in the switch device to start the oil pump and conduct the circulating oil circuit formed by the vacuum box, the oil pump and the heater to heat and circulate the oil in the vacuum box; After the first preset time period ends, the first switch group and the fourth switch group are turned off.

9. The method according to claim 7, characterized in that: The step of starting the vacuum pump to evacuate the bulb tube by means of the switch device comprises: Opening the second switch group in the switch device and starting the vacuum pump to connect the pipeline between the vacuum pump and the bulb tube, so that the vacuum pump evacuates the bulb tube; After the second preset time period ends, the second switch group is turned off.

10. The method according to claim 7, characterized in that The step of starting the oil pump to inject the oil in the vacuum box into the ball tube through the switch device, and starting the vacuum pump to evacuate the vacuum box comprises: The third switch group and the fourth switch group in the switch device are turned on to connect the pipelines between the vacuum box, the oil pump, the heater and the bulb to form an oil injection path, so that the oil pump injects the oil in the vacuum box into the bulb, and the pipeline between the vacuum pump and the vacuum box is connected so that the vacuum pump evacuates the vacuum box; After the third preset time period ends, the third switch group and the fourth switch group are turned off.

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