Tobacco tar filling device

Abstract

The utility model discloses a tobacco tar filling device which comprises a support, an oiling device, a lifting device and a pressure relief back suction valve, the oiling device, the lifting device and the pressure relief back suction valve are installed on the support, the oiling device comprises an oiling needle cylinder, an oil suction pipe and an oil outlet pipe, the oil suction pipe and the oil outlet pipe are communicated with the oiling needle cylinder, the oil outlet pipe is connected with an oil outlet nozzle, and the pressure relief back suction valve is connected to the oil outlet pipe. According to the utility model, through the pressure relief back suction valve, pressure relief is carried out after oil injection of the oil outlet nozzle is completed, so that oil in the oil outlet nozzle is sucked back, and the phenomenon of oil dripping is avoided; according to the utility model, the flow sensor is arranged, is connected to the oil outlet pipe, is positioned between the oil outlet nozzle and the pressure relief back suction valve, and is used for detecting the oil filling quantity of the oil outlet pipe, so that the high-precision control on the filling oil filling quantity is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic cigarettes and relates to a cigarette oil filling device. Background Art

[0002] E-cigarettes are electronic products that imitate cigarettes, with a similar appearance, smoke, taste and feel to cigarettes. After the e-cigarette's oil is used up, it needs to be refilled. Currently, during the refilling process, oil dripping is prone to occur after the nozzle is filled with oil. In addition, the amount of oil filled needs to be estimated based on experience. If the filling amount is not accurate enough, adding too much will affect the atomization and smoking effects of the e-cigarette, and even damage the e-cigarette device. Summary of the Invention

[0003] In order to overcome at least one deficiency of the prior art, the present invention provides a cigarette oil filling device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a smoke oil filling device, including a bracket and an oil filling device, a lifting device and a pressure relief and return suction valve installed on the bracket, the oil filling device includes an oil filling syringe and an oil suction pipe and an oil outlet pipe connected to the oil filling syringe, the oil outlet pipe is connected to the oil outlet nozzle, and the pressure relief and return suction valve is connected to the oil outlet pipe.

[0005] Furthermore, the bracket includes a support plate, a first support frame and a second support frame. The first support frame and the second support frame are fixed above the support plate. The first support frame and the second support frame are respectively arranged vertically with the support plate. The lifting device and the oil injection device are fixed on the first support frame, and the pressure relief and back-suction valve is fixed on the second support frame.

[0006] Furthermore, the oil injection syringe includes a lifting rod, and the lifting device includes an electric cylinder mounting frame and an electric cylinder. The electric cylinder mounting frame is fixedly mounted on the first support frame, and the electric cylinder is fixedly mounted on the electric cylinder mounting frame. The power output shaft of the electric cylinder is fixedly provided with a cross plate, and an intermediate block is fixedly mounted on the upper end of the cross plate. The cross plate and the intermediate block are fixedly connected, and an installation block is fixedly mounted on the upper end of the intermediate block. The installation block is fixedly provided with an installation groove, and a connecting block is fixedly mounted at the end of the lifting rod. The connecting block is buckled into the installation groove, and the installation block is fixedly connected to the lifting rod.

[0007] Furthermore, it also includes a flow sensor, which is connected to the oil outlet pipe and located between the oil outlet nozzle and the pressure relief and suction valve. The flow sensor has a built-in oil filling threshold. The flow sensor sends a stop signal to the electric cylinder, and the electric cylinder closes after receiving the stop signal.

[0008] Furthermore, the oil injection syringe and the oil suction pipe are connected through a collecting pipe, and the oil injection syringe and the oil outlet pipe are connected through a collecting pipe. One end of the collecting pipe is connected to the oil injection syringe, and the other end is connected to the oil suction pipe and the oil outlet pipe respectively. The oil suction pipe is connected to the oil storage barrel, and a first one-way valve is connected to the oil suction pipe, and a second one-way valve is connected to the oil outlet pipe.

[0009] Furthermore, the oil injection device also includes a fixing component, which includes an upper fixing structure and a lower fixing structure. The upper fixing structure is located at the upper end of the oil injection syringe and fixedly connects the oil injection syringe to the first support frame. The lower fixing structure is located at the lower end of the oil injection syringe and fixedly connects the oil injection syringe to the first support frame.

[0010] Furthermore, the upper fixed structure includes a first upper fixed plate and a second upper fixed plate, the first upper fixed plate is fixedly connected to the first support frame, and the end surfaces of the first upper fixed plate and the second upper fixed plate facing the oil injection syringe are both provided with a first arc groove, the curvature of the first arc groove matches the curvature of the outer surface of the oil injection syringe, and the first arc grooves of the first upper fixed plate and the second upper fixed plate respectively abut against the oil injection syringe, and fix the first upper fixed plate and the second upper fixed plate to be connected.

[0011] Furthermore, the lower fixing structure includes a first lower fixing plate and a second lower fixing plate, the first lower fixing plate is fixedly connected to the first support frame, the end surfaces of the first lower fixing plate and the second lower fixing plate facing the oil injection syringe are both provided with a second arc groove, the lower end of the oil injection syringe is fixedly provided with a surrounding plate, the surrounding plate is fixedly provided with a convex skirt, the curvature of the second arc groove matches the curvature of the outer surface of the surrounding plate, and the second arc groove is also fixedly provided with a concave clamping groove, the second arc grooves are respectively in contact with the oil injection syringe, and the skirt is buckled into the clamping groove, so that the first lower fixing plate and the second lower fixing plate are fixedly connected.

[0012] Furthermore, the clamping groove is composed of an arc groove and a horizontal groove, the skirt is composed of an arc edge and a horizontal edge, the arc edge is installed corresponding to the arc groove, and the horizontal edge is installed corresponding to the horizontal groove.

[0013] Furthermore, guide rods are symmetrically fixed at both ends of the transverse plate, and the guide rods are slidably connected to the electric cylinder mounting frame.

[0014] In summary, the benefits of the present invention are:

[0015] 1) The utility model uses a pressure relief and back-suction valve to relieve pressure after the oil outlet nozzle is filled with oil, so that the oil in the oil outlet nozzle is sucked back, thereby avoiding oil dripping.

[0016] 2) The utility model is provided with a flow sensor, which is connected to the oil outlet pipe and is located between the oil outlet nozzle and the pressure relief and suction valve. The flow sensor is used to detect the oil injection amount of the oil outlet pipe, thereby achieving high-precision control of the filled oil injection amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the smoke oil filling device of the present invention.

[0018] Figure 2 This is a schematic diagram of a partial explosion of the smoke oil filling device of the present invention. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0021] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0022] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the perpendicular relationship may actually be an approximately perpendicular relationship.

[0023] Example 1:

[0024] like Figure 1-Figure 2 As shown, a smoke oil filling device includes a bracket and an oil filling device, a lifting device and a pressure relief and return suction valve 4 installed on the bracket. The oil filling device includes an oil filling syringe 21 and an oil suction pipe 22 and an oil outlet pipe 23 connected to the oil filling syringe 21. The oil outlet pipe 23 is connected to the oil outlet nozzle 5, and the pressure relief and return suction valve 4 is connected to the oil outlet pipe 23.

[0025] The bracket includes a support plate 11 and support legs 12. There are several support legs 12, which are fixed under the support plate 11 to support it. Preferably, there are four groups of support legs 12, which are distributed at the four corners of the support plate 11 to ensure the balance and stability of the support plate 11.

[0026] A foot pad 13 is provided under the supporting leg 12. The size of the foot pad 13 is larger than the size of the supporting leg 12 to ensure the stability of the support of the supporting leg 12. Preferably, an anti-slip pad is provided at the bottom of the foot pad 13 (not shown).

[0027] The bracket also includes a first support frame 14 and a second support frame 15. Figure 1As shown, the first support frame 14 and the second support frame 15 are fixed above the support plate 11, and the first support frame 14 and the second support frame 15 are respectively arranged vertically with the support plate 11, the lifting device and the oil injection device are fixed on the first support frame 14, and the pressure relief and back-suction valve 4 is fixed on the second support frame 15.

[0028] like Figure 1 As shown, the oil injection syringe 21 and the oil suction pipe 22 are connected through the collecting pipe 20, and the oil injection syringe 21 and the oil outlet pipe 23 are connected through the collecting pipe 20, that is, one end of the collecting pipe 20 is connected to the oil injection syringe 21, and the other end is connected to the oil suction pipe 22 and the oil outlet pipe 23 respectively. The oil suction pipe 22 is connected to the oil storage barrel 6, and a first one-way valve 221 is connected to the oil suction pipe 22, and a second one-way valve 231 is connected to the oil outlet pipe 23. When the oil injection syringe 21 absorbs oil, the oil in the oil storage barrel 6 enters the oil injection syringe 21 along the oil suction pipe 22 and the collecting pipe 20. When the electronic cigarette is filled with oil, the oil is injected into the electronic cigarette from the oil injection syringe 21 along the collecting pipe 20, the oil outlet pipe 23, and the oil outlet nozzle 5.

[0029] The oil injection device also includes a fixing component, which fixes the oil injection syringe 21 to the first support frame 14 through the fixing component. The fixing component includes an upper fixing structure 24 and a lower fixing structure 25. The upper fixing structure 24 is located at the upper end of the oil injection syringe 21 to fix the oil injection syringe 21 to the first support frame 14. The lower fixing structure 25 is located at the lower end of the oil injection syringe 21 to fix the oil injection syringe 21 to the first support frame 14. The upper fixing structure 24 and the lower fixing structure 25 are used to fix the oil injection syringe 21 at the upper and lower ends to ensure the stability of the installation of the oil injection syringe 21 and the first support frame 14.

[0030] like Figure 2 As shown, the upper fixing structure 24 fixes the oil injection syringe 21 to the first support frame 14 in the following manner:

[0031] The upper fixed structure 24 includes a first upper fixed plate 241 and a second upper fixed plate 242. The first upper fixed plate 241 is fixedly connected to the first support frame 14. The end surfaces of the first upper fixed plate 241 and the second upper fixed plate 242 facing the oil injection syringe 21 are both provided with a first arc groove 243. The curvature of the first arc groove 243 matches the curvature of the outer surface of the oil injection syringe 21. The first arc grooves 243 of the first upper fixed plate 241 and the second upper fixed plate 242 are respectively in contact with the oil injection syringe 21 for snapping, and the first upper fixed plate 241 and the second upper fixed plate 242 are fixedly connected. The oil injection syringe 21 is fixedly connected to the upper fixed structure 24 through the fastening force of the two, thereby realizing the fixed connection of the oil injection syringe 21 to the first support frame 14.

[0032] like Figure 2 As shown, the lower fixing structure 25 fixes the oil injection syringe 21 to the first support frame 14 in the following manner:

[0033] The lower fixed structure 25 includes a first lower fixed plate 251 and a second lower fixed plate 252. The first lower fixed plate 251 is fixedly connected to the first support frame 14. The end surfaces of the first lower fixed plate 251 and the second lower fixed plate 252 facing the oil injection syringe 21 are both provided with a second arc groove 253. The lower end of the oil injection syringe 21 is fixedly provided with a surrounding plate (not shown in the figure). The surrounding plate is fixedly provided with a convex skirt 250. The curvature of the second arc groove 253 matches the curvature of the outer surface of the surrounding plate. A concave slot 254 is also fixed in 253, and the second arc slots 253 of the first lower fixing plate 251 and the second lower fixing plate 252 are respectively in contact with the oil injection syringe 21 for buckling, and the skirt 250 is buckled into the slot 254, and the first lower fixing plate 251 and the second lower fixing plate 252 are fixedly connected. The oil injection syringe 21 is fixedly connected to the lower fixing structure 25 through the fastening force of the two, thereby achieving a fixed connection between the oil injection syringe 21 and the first support frame 14.

[0034] In this embodiment, the installation position of the oil injection syringe 21 is limited by the connection between the skirt 250 and the slot 254, thereby effectively preventing the oil injection syringe 21 from moving or shaking in the vertical direction.

[0035] The slot 254 is composed of an arc groove and a horizontal groove, and the skirt 250 is composed of an arc edge and a horizontal edge. The arc edge is installed corresponding to the arc groove, and the horizontal edge is installed corresponding to the horizontal groove, thereby effectively preventing the oil injection syringe 21 from rotating relative to itself.

[0036] The lifting device is configured as an electric cylinder transmission structure, and is connected to the oiling syringe 21. The lifting device controls the air pressure inside the oiling syringe 21 through its lifting action, thereby controlling the oiling syringe 21 to suck oil inward and expel oil outward.

[0037] The oiling syringe 21 includes a barrel 211 and a lifting rod 213 slidably connected to the barrel 211. Oil can be stored in the barrel 211. The lifting rod 213 is connected to a lifting device. The lifting device can drive the lifting rod 213 to move up and down, thereby controlling the air pressure change inside the barrel 21, so that the oiling syringe 21 can absorb oil inward and expel oil outward.

[0038] The principle of the oil injection syringe 21 in this embodiment to achieve inward oil suction and outward oil discharge through the action of the lifting device is the same as that in the prior art and will not be described in detail here.

[0039] In this embodiment, the lifting device is configured as an electric cylinder structure, including an electric cylinder mounting frame 30 and an electric cylinder 31. The electric cylinder mounting frame 30 is fixed on the first support frame 14, and the electric cylinder 31 is fixed on the electric cylinder mounting frame 30. The power output shaft 32 of the electric cylinder 31 is fixed with a cross plate 33. When the electric cylinder 31 starts the power output shaft 32, it drives the cross plate 33 to perform lifting movements.

[0040] An intermediate block 35 is fixed to the upper end of the horizontal plate 33, and an empty slot 351 is fixed to the lower end of the intermediate block 35. The horizontal plate 33 is buckled into the empty slot 351 and is fixedly connected to the intermediate block 35. A mounting block 36 is fixed to the upper end of the intermediate block 35, and the mounting block 36 is fixedly provided with a mounting slot 361. A connecting block 213 is fixed to the end of the lifting rod 213, and the connecting block 213 is buckled into the mounting slot 361 to fix the mounting block 36 to the lifting rod 213, thereby realizing the connection between the lifting device and the oil injection syringe 21.

[0041] Preferably, guide rods 34 are symmetrically fixed at both ends of the cross plate 33, and the guide rods 34 are slidably connected to the electric cylinder mounting frame 30. When the cross plate 33 is lifted and lowered under the action of the electric cylinder 31, the guide rods 34 are synchronously driven to move. The guide rods 34 guide the lifting and lowering movement of the cross plate 33 and ensure the stability of the cross plate 33 during the lifting and lowering movement.

[0042] The specific oil suction and oil filling process of the oil filling device is as follows: when the oil filling syringe 21 needs to absorb oil, the first one-way valve 221 is opened, the second one-way valve 231 is closed, the electric cylinder 31 drives the lifting rod 213 to move downward, the air pressure in the cylinder 211 drops, and the oil in the oil storage barrel 6 enters the oil filling syringe 21 along the oil suction pipe 22 and the collecting pipe 20. When the electronic cigarette needs to be filled with oil, the first one-way valve 221 is closed, the second one-way valve 231 is opened, the electric cylinder 31 drives the lifting rod 213 to move upward, the air pressure in the cylinder 211 rises, and the oil from the oil filling syringe 21 along the collecting pipe 20, the oil outlet pipe 23, and the oil outlet nozzle 5 is filled into the electronic cigarette. After the oil outlet nozzle 5 is filled with oil, the pressure relief back-suction valve 4 is started to relieve pressure. At this time, the oil in the oil outlet nozzle 5 is sucked back, thereby avoiding oil dripping; the oil filling amount of the oil outlet nozzle 5 can be controlled by controlling the stroke of the electric cylinder 31.

[0043] In other embodiments, the lifting device may also be configured as other power structures, such as a motor + ball screw transmission structure, a motor + synchronous belt transmission structure, etc.

[0044] The smoke oil filling device also includes a flow sensor 7, which is connected to the oil outlet pipe 23 and is located between the oil outlet nozzle 5 and the pressure relief and re-suction valve 4. The flow sensor 7 is used to detect the amount of oil injected into the oil outlet pipe 23, thereby achieving high-precision control of the injected amount of oil.

[0045] The flow sensor 7 is fixed on the second support frame 15 and is connected to the electric cylinder 31. The flow sensor 7 can send a stop signal to the electric cylinder 31. After receiving the stop signal, the electric cylinder 31 is closed, and the oil injection syringe 21 stops supplying oil to the oil outlet nozzle 5, and the oil outlet nozzle 5 injects oil into the electronic cigarette.

[0046] The flow sensor 7 has a built-in oil filling threshold. When the detected oil filling amount reaches the set oil filling threshold, the flow sensor 7 sends a stop signal to the electric cylinder 31. The electric cylinder 31 closes after receiving the stop signal. At this time, there are residual oil droplets in the oil outlet nozzle 5. In order to prevent the oil droplets from falling down, the pressure relief back-suction valve 4 is activated to suck the oil droplets from the oil outlet nozzle 5 back into the oil outlet pipe 23 but not back into the oil filling syringe 21. The flow sensor 7 detects the amount of oil sucked back. When the oil is filled next time, the flow sensor 7 will replenish the sucked back amount of oil to ensure the consistency of the oil filling amount each time.

[0047] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A smoke oil filling device, characterized by: It includes a bracket and an oil injection device, a lifting device and a pressure relief and return suction valve installed on the bracket. The oil injection device includes an oil injection syringe and an oil suction pipe and an oil outlet pipe connected to the oil injection syringe. The oil outlet pipe is connected to the oil outlet nozzle, and the pressure relief and return suction valve is connected to the oil outlet pipe.

2. The smoke oil filling device according to claim 1, characterized in that: The bracket includes a support plate, a first support frame and a second support frame. The first support frame and the second support frame are fixed above the support plate. The first support frame and the second support frame are respectively arranged vertically with the support plate. The lifting device and the oil injection device are fixed on the first support frame, and the pressure relief and back-suction valve is fixed on the second support frame.

3. The smoke oil filling device according to claim 2, characterized in that: The oil injection syringe includes a lifting rod, and the lifting device includes an electric cylinder mounting frame and an electric cylinder. The electric cylinder mounting frame is fixedly mounted on the first support frame, and the electric cylinder is fixedly mounted on the electric cylinder mounting frame. A cross plate is fixedly mounted on the power output shaft of the electric cylinder, and an intermediate block is fixedly mounted on the upper end of the cross plate. The cross plate and the intermediate block are fixedly connected, and an installation block is fixedly mounted on the upper end of the intermediate block. The installation block is fixedly mounted with an installation groove, and a connecting block is fixedly mounted at the end of the lifting rod. The connecting block is buckled into the installation groove, and the installation block is fixedly connected to the lifting rod.

4. The smoke oil filling device according to claim 3, characterized in that: It also includes a flow sensor, which is connected to the oil outlet pipe and located between the oil outlet nozzle and the pressure relief and suction valve. The flow sensor has a built-in oil filling threshold. The flow sensor sends a stop signal to the electric cylinder, and the electric cylinder closes after receiving the stop signal.

5. The smoke oil filling device according to claim 1, characterized in that: The oil injection syringe and the oil suction pipe are connected through a collecting pipe, and the oil injection syringe and the oil outlet pipe are connected through a collecting pipe. One end of the collecting pipe is connected to the oil injection syringe, and the other end is connected to the oil suction pipe and the oil outlet pipe respectively. The oil suction pipe is connected to the oil storage barrel, and a first one-way valve is connected to the oil suction pipe, and a second one-way valve is connected to the oil outlet pipe.

6. The smoke oil filling device according to claim 2, characterized in that: The oil injection device also includes a fixing assembly, which includes an upper fixing structure and a lower fixing structure. The upper fixing structure is located at the upper end of the oil injection syringe and fixedly connects the oil injection syringe to the first support frame. The lower fixing structure is located at the lower end of the oil injection syringe and fixedly connects the oil injection syringe to the first support frame.

7. The smoke oil filling device according to claim 6, characterized in that: The upper fixing structure includes a first upper fixing plate and a second upper fixing plate. The first upper fixing plate is fixedly connected to the first support frame. The end surfaces of the first upper fixing plate and the second upper fixing plate facing the oil injection syringe are both provided with a first arc groove. The curvature of the first arc groove matches the curvature of the outer surface of the oil injection syringe. The first arc grooves of the first upper fixing plate and the second upper fixing plate respectively abut against the oil injection syringe and fix the first upper fixing plate and the second upper fixing plate in connection.

8. The smoke oil filling device according to claim 6, characterized in that: The lower fixing structure includes a first lower fixing plate and a second lower fixing plate. The first lower fixing plate is fixedly connected to the first support frame. The end surfaces of the first lower fixing plate and the second lower fixing plate facing the oil injection syringe are both provided with a second arc groove. The lower end of the oil injection syringe is fixedly provided with a surrounding plate, and the surrounding plate is fixedly provided with a convex skirt. The curvature of the second arc groove matches the curvature of the outer surface of the surrounding plate. The second arc groove is also fixedly provided with a concave clamping groove. The second arc grooves are respectively in contact with the oil injection syringe, and the skirt is buckled into the clamping groove, so that the first lower fixing plate and the second lower fixing plate are fixedly connected.

9. The smoke oil filling device according to claim 8, characterized in that: The clamping groove is composed of an arc groove and a horizontal groove, and the skirt is composed of an arc edge and a horizontal edge. The arc edge is installed corresponding to the arc groove, and the horizontal edge is installed corresponding to the horizontal groove.

10. The smoke oil filling device according to claim 3, characterized in that: Guide rods are symmetrically fixed on both ends of the transverse plate, and the guide rods are slidably connected to the electric cylinder mounting frame.

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