Oil gun sleeve of oiling device and oiling machine

Abstract

The utility model discloses an oil gun sleeve of an oiling device and an oiling machine. The technical problem that an oil gun of an existing oiling machine is not hung in place or when a person touches the oil gun by mistake, the oiling machine is very prone to being locked is solved. The oil gun sleeve comprises a gun sleeve body and a rotating shaft transversely penetrating through the gun sleeve body, a bracket which is fixed relative to the rotating shaft and used for clamping and discharging an oil gun is arranged in the gun sleeve body, and a microswitch triggering mechanism and a state limiting mechanism are arranged on the two sides of the gun sleeve body respectively. The microswitch triggering mechanism comprises a microswitch, a driving plate and a torsional spring; the state limiting mechanism comprises a rocker arm, a supporting foot, a spring and a rocker arm limiting piece. According to the oil gun sleeve of the oiling machine, false triggering caused by the fact that the oil gun is not hung in place or mistakenly touched by personnel can be avoided, and the use reliability is high.

Description

Technical Field

[0001] The present application relates to the technical field of fuel dispensers, and in particular to a fuel gun cover of a fueling device and a fuel dispenser. Background Art

[0002] A fuel dispenser is a device used to add liquid fuel (such as gasoline, diesel, etc.) to motor vehicles. It is usually composed of an oil pump, an oil-gas separator, a meter, and a fuel gun. The fuel gun is used to connect to the outlet of the fuel pump pipeline of the fuel dispenser and deliver the fuel to the vehicle tank through the nozzle. The outer shell of the fuel dispenser is embedded with a fuel gun sleeve that is compatible with the fuel gun, which is used to support and fix the fuel gun. It is usually installed at the front end or side of the fuel dispenser to facilitate personnel to access and operate the fuel gun.

[0003] Existing fuel dispensers generally use micro switches to control the filling of the fuel gun. When the fuel gun is removed from the fuel gun holster, the micro switch is triggered to work. The micro switch outputs a control signal to the fuel dispenser main board, and then the main board sends a refueling signal to the corresponding refueling component, and the fuel dispenser enters the working state according to the signal. However, when the holster is not properly hung on the gun or someone accidentally touches the fuel gun, the micro switch will be triggered to work, and the refueling operation is not actually carried out at this time, which will trigger the fuel dispenser protection function, causing the fuel dispenser to lock, causing unnecessary trouble, increasing the workload of the gas station staff and affecting the normal operation of the gas station.

[0004] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] In view of at least one of the above technical problems, the present disclosure provides a refueling device oil gun cover and a refueling machine, aiming to solve the technical problem that the existing refueling machine oil gun is not properly hung or the oil gun is easily locked when a person accidentally touches it.

[0006] According to one aspect of the present disclosure, a refueling device oil gun holster is provided, comprising a holster, a rotating shaft that crosses the holster, a bracket that is relatively fixed to the rotating shaft and is used to clamp the oil gun is provided in the holster, and a micro switch trigger mechanism and a state limit mechanism are respectively provided on both sides of the holster; the micro switch trigger mechanism comprises a micro switch fixed to the holster, a dial that is respectively correspondingly arranged outside the rotating shaft, a pressure plate for pressing and triggering the micro switch, and a torsion spring with one end against the pressure plate, the dial rotates with the rotating shaft and is provided with a torsion spring limit column on the surface for abutting against the other end of the torsion spring, and a pressure plate limit column for limiting the pressure plate and the micro switch when the oil gun is pressed against the bracket; the state limit mechanism comprises a rocker arm that rotates with the rotating shaft, a support foot fixed at a position above the corresponding rotating shaft outside the holster, a spring connected between the support foot and the corresponding end of the rocker arm, and a rocker arm limiter fixed at a position near the holster mouth outside the holster and used to limit the swing range of the rocker arm.

[0007] In some embodiments of the present disclosure, one end of the bracket is sleeved outside the rotating shaft and fixed to the rotating shaft by corresponding bolts.

[0008] In some embodiments of the present disclosure, a buffer pad is provided at the contact portion between the bracket and the holster.

[0009] In some embodiments of the present disclosure, a fixing plate is further included for fixing the micro switch and the holster relative to each other.

[0010] In some embodiments of the present disclosure, the corresponding cross-section of the pressure plate is a U-shaped structure, and the width between two side walls of the U-shaped structure is not less than the height of the torsion spring.

[0011] In some embodiments of the present disclosure, the support foot is an L-shaped plate, and a through hole for hanging the spring is provided at the bottom plate of the L-shaped plate.

[0012] In some embodiments of the present disclosure, a hook plate is hinged at the corresponding end of the rocker arm, and the corresponding end of the spring is hung on the hook plate.

[0013] According to another aspect of the present disclosure, a fuel dispenser is provided, which includes the fuel gun sleeve of the fueling device.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0015] 1. The state limit mechanism can effectively ensure the relative fixation of the support seat position when the oil gun is taken out of or put back into the holster through the cooperation of the spring and the rocker arm, thereby avoiding the problem of the micro switch being triggered by mistake due to the change of the support seat position caused by the oil gun being not hung in place or accidentally touched by people.

[0016] 2. The micro switch trigger mechanism can reliably press or release the micro switch through the pressure plate, thereby avoiding the problem of the fuel dispenser being locked due to poor triggering or releasing of the micro switch.

[0017] 3. The buffer pad at the support and the rocker arm limiter of the state limit mechanism can effectively reduce the adverse impact on the holster caused by the large-scale and rapid recovery of the support through buffering energy absorption and position limitation, which helps to increase the service life of the holster. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the oil gun cover of the refueling device in one embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the structure of the rotating shaft and the bracket in one embodiment of the present application.

[0020] Figure 3 Schematic diagram of the structure of the micro switch trigger mechanism in one embodiment of the present application.

[0021] Figure 4 Schematic diagram of the structure of the state limiting mechanism in one embodiment of the present application.

[0022] Figure 5 This is a schematic diagram of the state of the micro switch trigger mechanism after the oil gun is dropped in one embodiment of the present application.

[0023] Figure 6 This is a schematic diagram of the state of the limiting mechanism of the oil gun in the dropped state in one embodiment of the present application.

[0024] In the above figures, 1 is a holster, 2 is a rotating shaft, 21 is a bushing, 3 is a bracket, 31 is a buffer pad, 41 is a micro switch, 42 is a pressure plate, 43 is a torsion spring, 44 is a dial, 45 is a torsion spring limit column, 46 is a pressure plate limit column, 47 is a fixed plate, 51 is a rocker arm, 52 is a support foot, 53 is a spring, 54 is a rocker arm limit piece, 55 is a hook plate, and 56 is a virtual vertical center line through the rotating shaft. DETAILED DESCRIPTION

[0025] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] The components and parts involved in the following embodiments are all conventional commercially available products unless otherwise specified. In order to better understand the technical solution of this application, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] In order to solve the problem that the oil gun seat of the existing fuel dispenser is easily locked when the oil gun is not properly hung or the person accidentally touches the oil gun, the micro switch is triggered, and the fuel dispenser is easily locked. Figure 1 It includes a holster 1 that matches the outer contour of the refueling gun and is used to place the refueling gun, a rotating shaft 2 that crosses the holster 1 at the lower position of the holster, and a bracket 3 that is movably provided in the holster 1 for clamping the refueling gun. In this embodiment, one end of the bracket 3 is arranged outside the rotating shaft 2, and bolt holes are opened at the rotating shaft 2 and the bracket 3 along the radial direction of the rotating shaft 2. Therefore, by installing bolts in the bolt holes, the rotating shaft 2 and the bracket 3 are relatively fixed while the bracket 3 is rotated relative to the holster 1 around the axis of the rotating shaft 2, and the rotating shaft 2 can rotate in the corresponding direction with the movement of the bracket 3.

[0028] In this embodiment, in order to reduce the friction between the rotating shaft 2 and the holster 1 when the rotating shaft 2 rotates, Figure 2 , a bushing 21 is provided at the contact portion between the rotating shaft 2 and the holster 1. In addition, in order to prevent the bracket 3 from colliding with the inner wall of the holster 3 when the oil gun is removed from the holster and retracted into the holster 1, a buffer pad 31 is provided at the contact portion between the bracket 3 and the holster 1 in this example, wherein the buffer pad 31 is made of rubber material to absorb the collision force between the two, thereby preventing the holster 3 from being damaged by the reciprocating impact of the bracket 3 for a long time.

[0029] In addition, in order to realize the feedback of the action of picking up and placing the oil gun, a micro switch trigger mechanism is provided on one side outside the holster 3; in order to ensure the reliability of the action feedback of the oil gun, a state limit mechanism is provided on the other side outside the holster 3.

[0030] For details, see Figure 3 The micro switch trigger mechanism is used to trigger and turn off the contacts of the micro switch 41, so that the micro switch 41 outputs a corresponding signal to reflect whether the refueling gun is hung in the holster 1. In this embodiment, in order to establish the connection between the refueling gun hanging and the micro switch contacts, a pressure plate 42 is provided outside the rotating shaft 2 extending from the side of the holster 1 corresponding to the micro switch trigger mechanism, see Figure 3The micro switch 41 is relatively fixed to the holster 1 through the fixing plate 47, and its contact faces the direction of the pressing plate 42. One end of the pressing plate 42 is inserted into the rotating shaft 2, and the other end can be used to contact the contact of the micro switch 41. In this example, the cross section of the pressing plate 42 is U-shaped, and the pressing plate 42 is correspondingly in the shape of a U-shaped groove. The rotating shaft 2 is inserted into the two side walls of the U-shaped groove, and the bottom of the U-shaped groove contacts the contact of the micro switch 41. In order to ensure that the pressing plate 42 can stably press against the contact of the micro switch 41 when the oil gun is removed from the holster, a torsion spring 43 is arranged outside the rotating shaft 2. In this example, the torsion spring 43 is arranged in the U-shaped groove of the pressing plate 42, and the groove width of the U-shaped groove is not less than the height of the torsion spring 43 to ensure that the torsion spring can be smoothly placed therein. One end of the torsion spring 43 is against the bottom of the U-shaped groove. In order to provide a support point for the other end of the torsion spring 43, in this example, a dial 44 is arranged outside the rotating shaft 2. The dial 44 is relatively fixed to the rotating shaft and moves with the rotating shaft 2. The surface of the dial 44 is perpendicular to the surface and a torsion spring limiting column 45 is provided. The other end of the torsion spring 43 is against the torsion spring limiting column 45. Therefore, when the oil gun is removed from the holster 1 and the bracket 3 is rotated and recovered into the holster 1, the rotating shaft 2 rotates accordingly. Since the dial 44 is relatively fixed and moves with the rotating shaft 2, the torsion spring limiting column 45 at the dial 44 squeezes the torsion spring 43, the torsion spring 43 is deformed, and the elastic potential energy increases, thereby pushing the extrusion plate 42 to press tightly against the contact of the micro switch 41, triggering the micro switch 41 to operate.

[0031] Among them, in order to achieve the relative fixation of the dial 44 and the rotating shaft 2, in this embodiment, the cross-section of the corresponding end of the rotating shaft 2 is D-shaped, and the corresponding central through hole of the dial 44 is also a D-shaped hole matching the end of the rotating shaft 2. Therefore, the dial 44 is correspondingly penetrated at the rotating shaft 2 to achieve the follow-up movement with the rotating shaft 2. After the refueling gun is removed, the torsion spring limit column 45 on the surface of the dial 44 is used to squeeze the torsion spring 43, so that the pressure plate 42 can reliably press the micro switch contacts.

[0032] In addition, in order to disconnect the pressing plate 42 from pressing the micro switch contacts when the oil gun is put back into the holster 1 and locked against the bracket 3, see Figure 5 In this example, a pressure plate limiting column 46 perpendicular to the surface is provided at a corresponding position on the surface of the dial 44. The pressure plate limiting column 46 is provided on the side of the dial 44 close to the micro switch. When the oil gun is put back and stuck on the bracket 3, the bracket 3 drives the rotating shaft 2 to rotate, and then the dial 44 moves with it. The pressure plate limiting column 46 at the dial 44 presses on the bottom of the pressure plate 42, driving the pressure plate 42 to rotate in a direction away from the micro switch contact, squeezing the torsion spring 43 and closing the micro switch. Further, see Figure 3 When the oil gun is removed from the bracket 3, the bracket 3 is not pressed by the oil gun. Under the elastic force of the torsion spring 43, the pressure plate 42 is pressed against the micro switch contact point, and the bracket 3 is rotated toward the holster for recovery.

[0033] When the oil gun is not properly hung or touched by a person, the micro switch 41 may be triggered by mistake. In order to avoid the adverse effects of the micro switch being triggered by mistake on the subsequent refueling, in this embodiment, see Figure 4 A state limiting mechanism is provided on the other side of the holster 1 .

[0034] Specifically, the state limiting mechanism includes a rocker arm 51, which is inserted into the end of the rotating shaft 2 and relatively fixed to the rotating shaft 2 to rotate with the rotating shaft 2. In this example, one end of the rocker arm 51 is sleeved on the rotating shaft 2 and is relatively fixedly connected by bolts arranged along the radial direction of the rotating shaft 2, so that when the rotating shaft 2 rotates with the bracket 3, the rocker arm 51 also swings. In addition, a support foot 52 is fixed above the rotating shaft 2 on this side. In this example, the support foot 52 is an L-shaped plate and is fixed to the holster 1 with bolts, see Figure 4 The end of the bottom plate of the L-shaped plate of the support foot 52 is provided with a folding plate with a through hole, and a spring 53 is hung at the through hole of the folding plate. The other end of the spring 53 is connected to the other end of the rocker arm 51. In some other embodiments, the spring 53 is directly hung at the corresponding end of the rocker arm 51. In this embodiment, in order to avoid position interference between the spring and the rotating shaft and other components, a hook plate 55 is hingedly provided at the end of the rocker arm 51 through a pin shaft, and the spring 53 is hung at the hook plate 55. Figure 6 When the oil gun is placed in the holster 1 and the bracket 3 is pressed, the rocker arm 51 rotates with the rotating shaft 2 to the side away from the oil gun. Under the elastic force of the spring 53, the rocker arm 51 is tightened after crossing the virtual vertical center line 56 passing through the rotating shaft 2, thereby limiting the position of the bracket 3 and making the bracket 3 at the maximum pressing angle. Even if the oil gun is not hung in place or the person accidentally touches the oil gun, the bracket 3 can still rely on the tension of the spring 53 to achieve relative fixation of the position, thereby avoiding the rotation of the rotating shaft 2, causing the pressure plate to press against the micro switch contacts and cause false triggering.

[0035] See also Figure 4 The state limiting mechanism also includes a rocker arm limiting member 54 fixed relatively to the holster 1 and close to the oil gun side, through which the maximum swing limit of the rocker arm 51 is limited after the oil gun is removed from the holster, thereby avoiding the rocker arm 51 from swinging rapidly toward the oil gun side across the vertical center line 56 under the elastic force of the spring 53, causing the rotating shaft 2 fixed thereto to drive the bracket 3 to rotate rapidly and contact the holster to cause an impact on the holster 1.

[0036] Therefore, the position of the bracket 3 is limited by the state limiting mechanism when the oil gun is removed or put back, avoiding erroneous changes in the micro switch action caused by the oil gun being placed improperly or accidentally touched, which can effectively improve the filling efficiency and refueling reliability.

[0037] In addition, this example also discloses a fuel dispenser, which adopts the above-mentioned fueling device oil gun cover to solve the problem that the fuel dispenser is locked due to the oil gun being placed improperly or accidentally touched.

[0038] Although some preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A refueling device oil gun cover, comprising a cover and a rotating shaft that crosses the cover, characterized in that: A bracket fixed relatively to the rotating shaft and used to clamp the oil gun is provided in the holster, and a micro switch trigger mechanism and a state limit mechanism are respectively provided on both sides of the holster; The micro switch trigger mechanism comprises a micro switch fixed to the holster, a dial respectively correspondingly arranged outside the rotating shaft, a pressure plate for pressing and triggering the micro switch, and a torsion spring with one end abutting against the pressure plate, the dial rotates with the rotating shaft and is provided with a torsion spring limiting column on the surface for abutting against the other end of the torsion spring, and a pressure plate limiting column for limiting the pressure plate and the micro switch when the oil gun is pressed against the bracket; The state limiting mechanism includes a rocker arm that rotates with the rotating shaft, a support foot fixed at a position above the rotating shaft outside the holster, a spring connected between the support foot and the corresponding end of the rocker arm, and a rocker arm limiting member fixed at a position outside the holster near the holster mouth and used to limit the swing range of the rocker arm.

2. The oil gun cover of the refueling device according to claim 1, characterized in that: One end of the bracket is sleeved outside the rotating shaft and fixed with corresponding bolts between the rotating shaft.

3. The oil gun cover of the refueling device according to claim 1, characterized in that: The corresponding contact parts between the bracket and the holster are provided with buffer pads.

4. The oil gun cover of the refueling device according to claim 1, characterized in that: It also includes a fixing plate used to fix the micro switch and the holster relative to each other.

5. The oil gun cover of the refueling device according to claim 1, characterized in that: The corresponding cross section of the pressure plate is a U-shaped structure, and the width between the two side walls of the U-shaped structure is not less than the height of the torsion spring.

6. The oil gun cover of the refueling device according to claim 1, characterized in that: The support foot is an L-shaped plate, and a through hole for hanging the spring is provided at the bottom plate of the L-shaped plate.

7. The oil gun cover of the refueling device according to claim 1, characterized in that: A hook plate is hinged at the corresponding end of the rocker arm, and the corresponding end of the spring is hung on the hook plate.

8. A fuel dispenser, characterized in that: The invention comprises the oil gun cover of the refueling device as claimed in claim 1.

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