Oil gun locking structure and device

Abstract

The present invention discloses an oil gun locking structure and a device thereof, which transmits a control signal to the control motor remotely, thereby driving the cam to rotate, so that the cam presses against the locking piece located at the tail of the trigger, making it impossible for a person to press the trigger, and thus the oil inlet groove and the oil outlet groove cannot be connected; an unlocking command is transmitted to the control motor from the outside, and the control motor drives the cam to rotate again, and the trigger obtains a movable space, and by pressing the trigger, the oil valve is connected to the oil inlet groove and the oil outlet groove, and the oil tank is refueled. In this way, the oil gun is switched on and off by the control device, and the output of the lubricating oil can be controlled.

Description

Technical Field

[0001] The present invention relates to the field of refueling equipment, and in particular to a refueling gun locking structure and a device thereof. Background Art

[0002] With the development of Internet technology and its deep integration with various industries, traditional lubricant sales have also spawned new business models. Users trade directly with lubricant suppliers (manufacturers) through mobile payment and management platforms, so lubricant suppliers (manufacturers) need to conduct (remote) Internet control of the oil guns of terminal refueling equipment. Summary of the Invention

[0003] The purpose of the present invention is to provide an oil gun locking structure and device thereof, aiming to solve the technical problem that the pressing device of the oil gun in the prior art is controlled by an electronic control structure, and oil can be directly discharged by pressing the trigger. The opening authority of the traditional oil gun is owned by the oil gun itself and is not remotely controlled. The oil gun cannot remotely control the opening authority of the oil gun, cannot introduce Internet payment, and cannot switch the oil gun on and off through the control device, and thus cannot control the output of lubricating oil.

[0004] To achieve the above-mentioned purpose, the present invention adopts an oil gun locking structure, wherein the housing has an oil outlet groove and an oil inlet groove, the oil outlet groove is located on one side of the housing, the oil inlet groove is located on the side of the housing away from the oil outlet groove and is connected to the oil outlet groove, the oil valve is located inside the housing, the oil valve includes a valve sleeve and a valve core, the valve sleeve is fixedly connected to the housing, the valve core is slidably connected to the valve sleeve in the valve sleeve, the trigger is rotatably connected to the housing, abuts against the oil valve, and is located on the side of the oil valve away from the oil inlet groove. ; The trigger includes a locking piece at the front end, a hand-pulling structure at the rear end and a rotating shaft hole in the middle. The locking assembly includes a connecting rotating shaft and a control component. The connecting rotating shaft is fixedly connected to the shell and passes through the rotating shaft hole. The top of the valve core abuts against the hand-pulling structure; the control component includes a cam and a control motor. The cam is rotatably connected to the shell and is opposite to the locking piece and is located on the side of the locking piece away from the oil tank. The control motor is fixedly connected to the shell, and the output shaft is fixedly connected to the cam and is close to the cam.

[0005] Wherein, the locking member has an arc-shaped groove, which is located on a side of the locking member close to the cam and cooperates with the cam.

[0006] Wherein, the arc-shaped groove is provided with a groove along the thickness direction, and the groove is opposite to the cam.

[0007] Wherein, the control component also includes a circuit switch, and the circuit switch includes two contacts. When the cam is unlocked, it contacts the battery housing, and the two contacts are respectively arranged on the contact points between the cam and the battery housing.

[0008] Wherein, the locking assembly further includes a telescopic spring, one end of which is fixedly connected to the housing, and the other end of which abuts against the bottom of the oil valve and is located between the housing and the valve core.

[0009] The present invention also provides an oil gun locking device, including an oil gun locking structure, a control circuit and a display panel. The display panel is fixedly connected to the shell and is located on the side of the shell close to the oil outlet groove. The control circuit is electrically connected to the display panel and electrically connected to the circuit switch.

[0010] The oil gun locking structure and device of the present invention transmit a control signal to the control motor remotely, thereby driving the cam to rotate, so that the cam presses against the locking piece located at the tail of the trigger, making it impossible for a person to press the trigger, and thus the oil inlet groove and the oil outlet groove cannot be connected; an unlocking command is transmitted to the control motor from the outside, and the control motor drives the cam to rotate again, and the trigger obtains a movable space, and by pressing the trigger, the oil valve is connected to the oil inlet groove and the oil outlet groove, and the oil tank is refueled. In this way, the oil gun is switched on and off by the control device, and the output of the lubricating oil can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a structural schematic diagram of the control component of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the trigger lock of the present invention.

[0014] Figure 3 It is a structural schematic diagram of the cam unlocking of the present invention.

[0015] Figure 4 It is a structural schematic diagram of the trigger pressing of the present invention.

[0016] Figure 5 It is a structural schematic diagram of the trigger reset of the present invention.

[0017] Figure 6 It is a structural schematic diagram of the cam reset of the present invention.

[0018] Figure 7 It is a structural schematic diagram of the circuit switch of the present invention.

[0019] Figure 8 It is a structural schematic diagram of the locking member of the present invention.

[0020] Figure 9 It is a control system diagram of the present invention.

[0021] In the figure: 1-housing, 2-oil valve, 3-trigger, 4-locking assembly, 5-first reset contact, 6-second reset contact, 7-battery housing, 11-oil outlet groove, 12-oil inlet groove, 21-valve sleeve, 31-hand-grip structure, 32-rotating shaft hole, 41-connecting rotating shaft, 42-locking piece, 43-control component, 44-telescopic spring, 100-oil gun locking structure, 200-display panel, 300-oil gun locking device, 400-control circuit, 421-arc groove, 431-cam, 432-control motor, 433-valve core, 434-reset circuit, 4211-groove. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0024] See also Figures 1 to 8The present invention provides an oil gun locking structure 100, comprising a housing 1, an oil valve 2, a trigger 3 and a locking assembly 4, wherein the housing 1 has an oil outlet groove 11 and an oil inlet groove 12, wherein the oil outlet groove 11 is located on one side of the housing 1, and the oil inlet groove 12 is located on a side of the housing 1 away from the oil outlet groove 11 and is communicated with the oil outlet groove 11, the oil valve 2 is located inside the housing 1, the oil valve 2 comprises a valve sleeve 21 and a valve core 433, the valve sleeve 21 is fixedly connected to the housing 1, and the valve core 433 is slidably connected to the valve sleeve 21 in the valve sleeve 21, the trigger 3 is rotatably connected to the housing 1, abuts against the oil valve 2, and is located on the side of the oil valve 2 away from the oil inlet groove 12. side; the trigger 3 includes a locking piece 42 at the front end, a hand-picking structure 31 at the rear end and a rotating shaft hole 32 in the middle, the locking assembly 4 includes a connecting rotating shaft 41 and a control member 43, the connecting rotating shaft 41 is fixedly connected to the housing 1 and passes through the rotating shaft hole 32, and the top of the valve core 433 abuts against the hand-picking structure 31; the control member 43 includes a cam 431 and a control motor 432, the cam 431 is rotatably connected to the housing 1, and is opposite to the locking piece 42, and is located on the side of the locking piece 42 away from the oil tank, the control motor 432 is fixedly connected to the housing 1, and the output shaft is fixedly connected to the cam 431, and is close to the cam 431.

[0025] In this embodiment, the shell 1 is formed by two mutually fitting shells that are threadedly connected, and the interior of the shell 1 is hollow, and the oil outlet groove 11 and the oil inlet groove 12 are respectively provided on the front and rear sides of the shell 1. The notch position of the oil outlet groove 11 is connected to the external oil outlet pipe, which is used to extend into the oil tank to fill the oil tank; the oil inlet groove 12 is connected to the fuel dispenser through the oil filling conduit, so that the fuel dispenser pumps the lubricating oil into the oil inlet groove 12 of the shell 1; the oil valve 2 is slidably installed between the oil inlet groove 12 and the oil outlet groove 11, and opens and closes the oil inlet groove 12 and the oil outlet groove 11. The trigger 3 includes the locking member 42 at the front end, the handle structure 31 at the rear end and the rotating shaft hole 32 in the middle. The oil valve 2 includes the valve sleeve 21 and the valve core 433. The valve sleeve 21 of the oil valve 2 is fixedly connected to the housing 1. The valve core 433 of the oil valve 2 is slidably connected to the valve sleeve 21. The telescopic spring 44 is provided between the bottom of the valve core 433 and the housing 1. By adjusting the relative position of the valve core 433 and the valve sleeve 21, the oil inlet groove 12 and the oil outlet groove 11 are respectively penetrated and blocked. The shaft 41 is threadedly fixed to the housing 1 and passes through the shaft hole 32. The connecting shaft 41 is located between the valve core of the oil valve 2 and the oil outlet groove 11. The trigger 3 is rotatably connected to the housing 1 through the connecting shaft 41, so that the trigger 3 rotates with the connecting shaft 41 as the axis. The housing 1 has a pressing operation port, and the hand structure 31 of the trigger 3 extends out of the operation port of the housing 1. By pressing the hand structure 31 of the trigger 3, the trigger 3 rotates with the connecting shaft 41 as the axis. The trigger 3 has a side toward the oil valve 2. There is a connecting groove, and the top of the valve core 433 extends into the connecting groove and abuts against the hand-picking structure 31. When the hand-picking structure is not buckled, there is a small gap between the movement trajectory of the cam 431 when it rotates to the locking part 42 and the arc groove of the locking part 42, so that the cam 431 can smoothly rotate to the specified position. After the cam 431 is rotated, if the hand-picking structure is buckled, the arc groove abuts against the cam 431. If the arc groove and the cam 431 are both smooth surfaces, there is a possibility of sliding left and right due to low friction. In order to avoid the occurrence of problems, a groove along the thickness direction can be added to the arc groove.In this way, the oil valve 2 is opened and closed by the trigger 3; the locking piece 42 is threadedly fixed to the side of the connecting shaft 41 away from the trigger 3, one side of the locking piece 42 abuts against the limiting protrusion of the housing 1, and the other side abuts against the cam 431, and the cam 431 is connected to the output shaft of the control motor 432 and rotates in a circle with the axis of the output shaft of the control motor 432 as the axis. The control motor 432 drives the cam 431 to rotate a certain angle and abut against the locking piece 42. The control motor 432 has multiple sets of mutually meshing reduction gears, and the motor output end is reduced in speed by multiple reduction gears, so that the output of the control motor 432 is more stable ; In this way, a control signal is transmitted to the control motor 432 remotely, thereby driving the cam 431 to rotate, so that the cam 431 presses against the locking piece 42 located at the tail of the trigger 3, making it impossible for a person to press the trigger 3, and thus the oil inlet groove 12 and the oil outlet groove 11 cannot be connected; an unlocking command is transmitted to the control motor 432 from the outside, and the control motor 432 drives the cam 431 to rotate again, and the trigger 3 obtains space for movement, and by pressing the trigger 3, the oil valve 2 is connected to the oil inlet groove 12 and the oil outlet groove 11, and then the oil tank is refueled. In this way, the oil gun is switched on and off by the control device, thereby controlling the output of the lubricating oil.

[0026] Further, see Figure 8 The locking member 42 has an arcuate groove 421 , which is located on a side of the locking member 42 close to the cam 431 and has a small gap with the movement trajectory of the cam 431 .

[0027] Furthermore, a groove 4211 is provided on the arc-shaped slot 421 along the thickness direction, and the groove 4211 is opposite to the cam 431 .

[0028] In this embodiment, there is a small gap between the movement trajectory of the cam 431 when it rotates to the locking member 42 and the arc groove of the locking member 42, so that the cam 431 can smoothly rotate to the specified position. After the cam 431 rotates in, if the hand-picking structure is buckled down, the arc groove will hit the cam 431. If the arc groove and the cam 431 are both smooth surfaces, there is a possibility of sliding left and right due to low friction. To avoid this problem, a groove 4211 along the thickness direction can be added to the arc groove.

[0029] Further, see Figure 7In order to prevent the cam 431 from forming cumulative errors during the back-and-forth rotation process and the cam rotation position from being uncontrollable, the control component 43 also includes a reset circuit 434. The reset circuit 434 includes two contacts. When the cam 431 is unlocked, it contacts the battery housing. The two contacts are respectively arranged on the contact points between the cam 431 and the battery housing.

[0030] In this embodiment, the reset circuit 434 includes a first reset contact 5 and a second reset contact 6. When the cam 431 is unlocked, it contacts the battery housing. The two contacts are respectively provided at the contact point between the cam 431 and the battery housing. Their function is to inform the circuit that the cam 431 has reached this position when the cam 431 rotates until the two contacts are in contact. The circuit is provided with a fixed rotation angle for the cam 431 to rotate from this position to the locking member. The controller inputs a preset value, and the controller transmits a control signal to the reset circuit 434. The reset circuit 434 turns on the working power of the control motor 432, causing the control motor 432 to drive the cam 431 to rotate. In this way, the control motor 432 is powered on by the reset circuit 434, thereby controlling the position of the cam 431.

[0031] Further, see Figure 2 The locking assembly 4 also includes a telescopic spring 44, one end of which is fixedly connected to the housing 1, and the other end of which abuts against the bottom of the oil valve 2 and is located between the housing 1 and the valve core 433.

[0032] In this embodiment, one end of the telescopic spring 44 abuts against the side of the housing 1, and the other end extends into the interior of the valve core 433 and abuts against the valve core 433. After refueling is completed, the elastic force of the telescopic spring 44 drives the valve core 433 to slide in the valve sleeve 21, blocks the oil inlet groove 12 and the oil outlet groove 11, and drives the trigger 3 to rotate to the initial position, thereby resetting the trigger 3.

[0033] See also Figure 9 A fuel gun locking device 300 includes a fuel gun locking structure 100, a control circuit 400 and a display panel 200. The display panel 200 is fixedly connected to the shell 1 and is located on a side of the shell 1 close to the oil outlet groove 11. The control circuit 400 is electrically connected to the display panel 200 and is also electrically connected to the circuit switch 434.

[0034] In this embodiment, when using the fuel gun, the customer pays the platform through various payment methods. The platform then sends an authorization instruction to the fuel gun and notifies the customer that the fuel gun can be used. The fuel gun is equipped with a control circuit 400, which includes a main circuit and a control circuit. The main circuit connects to the control circuit of the control circuit 400. The control circuit receives external signals and transmits control signals to the input end of the control motor 432. The control circuit 400 is wirelessly connected to the platform. After the control circuit 400 receives the platform's authorization instruction, the control motor 432 is activated, rotating the cam 431. The customer can then pull the trigger 3 to refuel. The display panel 200 displays the preset flow rate and the actual flow rate, making it easier to control the flow rate.

[0035] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A locking structure for an oil gun, characterized in that: Includes housing, oil valve, trigger and locking assembly; The housing has an oil outlet groove and an oil inlet groove, the oil outlet groove is located on one side of the housing, the oil inlet groove is located on a side of the housing away from the oil outlet groove and is communicated with the oil outlet groove, the oil valve is located inside the housing, the oil valve includes a valve sleeve and a valve core, the valve sleeve is fixedly connected to the housing, the valve core is slidably connected to the valve sleeve within the valve sleeve, the trigger is rotatably connected to the housing, abuts against the oil valve, and is located on a side of the oil valve away from the oil inlet groove; The trigger includes a locking member at the front end, a handle structure at the rear end, and a shaft hole in the middle. The locking assembly includes a connecting shaft and a control member. The connecting shaft is fixedly connected to the housing and passes through the shaft hole. The top of the valve core abuts against the handle structure. The control member includes a cam and a control motor. The cam is rotatably connected to the housing and is opposite to the locking member and is located on a side of the locking member away from the oil tank. The control motor is fixedly connected to the housing, and its output shaft is fixedly connected to the cam and is close to the cam. The control member also includes a circuit switch. The circuit switch includes two contacts. When the cam is unlocked, it contacts the battery housing. The two contacts are respectively provided at the contact points between the cam and the battery housing. The locking assembly further includes a telescopic spring, one end of which is fixedly connected to the housing, and the other end of which abuts against the bottom of the oil valve and is located between the housing and the valve core.

2. The oil gun locking structure according to claim 1, characterized in that: The locking member has an arc-shaped groove, which is located on a side of the locking member close to the cam and cooperates with the cam.

3. The oil gun locking structure according to claim 2, characterized in that: The arc-shaped slot is provided with a groove along the thickness direction, and the groove is opposite to the cam.

4. A grease gun locking device, characterized in that: It comprises the oil gun locking structure, control circuit and display panel according to any one of claims 1 to 3, wherein the display panel is fixedly connected to the shell and is located on a side of the shell close to the oil outlet groove, and the control circuit is electrically connected to the display panel and to the circuit switch.

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