CN213619334U - Diaphragm type intelligent oil filling cover - Google Patents

Abstract

The embodiment of the utility model discloses diaphragm formula intelligence adds oil cap, include: upper cover, lid body, drive mechanism and actuating mechanism, upper cover and lid body are connected and surround formation transmission chamber, place the transmission intracavity in the drive mechanism and connect between upper cover and the lid body, and the through-hole in intercommunication transmission chamber is seted up towards one side of oil tank to the lid body, and actuating mechanism is the flexible diaphragm that covers the through-hole, its all around and lid body sealing connection, diaphragm and drive mechanism one end butt. Compared with the prior art, this diaphragm formula intelligence adds oil cap's upper cover is connected with the lid body through drive mechanism, and when oil tank internal pressure was too big, the diaphragm can the incurve promotion drive mechanism inward movement, with lid body separation for when rotating the upper cover and trying to take off this and adding oil cap, the rotation of upper cover can't transmit and cover on one's body, makes this add oil cap can't take off, has avoided the emergence of hindering the people accident.

Description

Diaphragm type intelligent oil filling cover

Technical Field

The utility model relates to an add oil cap technical field, especially relate to a diaphragm formula intelligence adds oil cap.

Background

Because gasoline has strong volatility and is inflammable and explosive, the oil filling cover needs good sealing performance so as to avoid gasoline steam overflow. However, when the temperature inside the fuel tank of the automobile rises rapidly, such as in summer when the temperature changes greatly, or when the automobile enters or passes through a high-temperature area, the pressure inside the fuel tank of the automobile increases rapidly, and if the fuel filler cap is opened at the moment, the accident that gasoline or gasoline steam is sprayed from the fuel filler to hurt people is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a diaphragm formula intelligence and add oil cap, solve among the prior art oil tank internal pressure and open when too big and add oil cap, appear the technical problem who hurts the people accident easily.

In order to achieve the technical purpose, the embodiment of the utility model provides a diaphragm formula intelligence adds oil cap, this diaphragm formula intelligence adds oil cap includes: upper cover, lid body, drive mechanism and actuating mechanism, upper cover and lid body are connected and surround formation transmission chamber, place the transmission intracavity in the drive mechanism and connect between upper cover and the lid body, and the through-hole in intercommunication transmission chamber is seted up towards one side of oil tank to the lid body, and actuating mechanism is the flexible diaphragm that covers the through-hole, its all around and lid body sealing connection, diaphragm and drive mechanism one end butt.

Compared with the prior art, this diaphragm formula intelligence adds oil cap's upper cover is connected with the lid body through drive mechanism, and when oil tank internal pressure was too big, the diaphragm can the incurve promotion drive mechanism inward movement, with lid body separation for when rotating the upper cover and trying to take off this and adding oil cap, the rotation of upper cover can't transmit and cover on one's body, makes this add oil cap can't take off, has avoided the emergence of hindering the people accident.

Drawings

FIG. 1 is a cross-sectional view of a diaphragm smart fuel filler cap provided by the present invention;

fig. 2 is a schematic view of the structure of the ring gear of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The diaphragm type intelligent oil filling cover is arranged at the opening of an oil filling pipe of an automobile oil tank and is in matched sealing connection with the oil filling pipe through threads. Including upper cover, lid body, drive mechanism, actuating mechanism and resetting means, wherein the upper cover surrounds with the lid body and forms the transmission chamber, places the transmission intracavity in the drive mechanism and connects upper cover and lid body, and lid body lateral wall is provided with the screw thread, with the screw-thread fit sealing connection on the inner wall of oil filler pipe mouth of pipe department. When installing this oil filling lid on adding oil pipe, the lid body inserts in adding oil pipe, and the upper cover stays outside of the oil pipe, when needs open the oil tank (like when adding oil), through rotating the upper cover that exposes outside adding oil pipe, then drives the lid body rotation in adding oil pipe through drive mechanism to twist off and add oil cover. In order to meet the sealing performance between the oil filling cover and the oil filling pipe, the radius of the upper cover is larger than that of the cover body, a circle of groove is formed between the upper cover and the cover body, and a sealing gasket is arranged in the groove. When this oil filling cover is installed on adding oil pipe, add the mouth of pipe of oil pipe and insert the recess in, compress tightly sealed pad, fill up the clearance that adds between oil pipe and the upper cover recess through sealed pad and realize sealedly.

When oil tank internal pressure is big to a certain extent, actuating mechanism can drive mechanism and remove and with upper cover or lid body separation under the effect of pressure, destroys being connected between upper cover and the lid body for the rotation of upper cover can't transmit the lid on one's body through drive mechanism. When the internal pressure of the oil tank is high to a certain degree, the oil filling cover cannot be screwed down by rotating the upper cover, so that the occurrence of accidents of hurting people is avoided.

The reset device is connected with the transmission mechanism, and the restoring force direction of the reset device is opposite to the driving direction of the driving mechanism. When the internal pressure of the oil tank is reduced to a normal value again, the resetting device can drive the transmission mechanism to move reversely, and the connection between the upper cover and the cover body is restored, so that the rotation of the upper cover can be transmitted to the cover body through the transmission mechanism, namely, the oil filling cover is smoothly screwed off by rotating the upper cover.

In the first embodiment, please refer to fig. 1 and fig. 2.

In the present embodiment, the driving mechanism 5d also adopts a mechanical manner to drive the transmission mechanism to separate from the cover body according to the pressure in the oil tank, and specifically includes an upper cover 1d, a cover body 2d, a transmission mechanism 3d, a gasket 4d, a driving mechanism 5d and a reset device 6 d.

Tooth grooves are formed in the inner wall of the upper cover 1d along the axis direction, and the tooth grooves are also formed in the inner wall of the cover body 2d along the axis direction. The upper cover 1d, the cover body 2d and the transmission mechanism 3d are coaxially arranged, the transmission mechanism 3d needs to transmit the rotation of the upper cover 1d to the cover body 2d, and the separation of the transmission relation is realized under the action of the driving mechanism 5 d.

Therefore, in this embodiment, the transmission mechanism 3d includes a top rod 31d, a gear ring 32d and an insert plate 33d, the bottom end of the top rod 31d is connected to the driving mechanism 5d, and the top end is connected to the insert plate 33d, and the connection manner may be general abutment, connection pieces such as bolts and buckles, or connection by integral molding. The gear ring 31d includes a gear ring body 311d and at least one elastic arm 312d, the gear ring body 311d is fixedly connected to the upper cover 1d, one end of the elastic arm 312d is fixedly connected to the gear ring body 311d, and when there are a plurality of elastic arms 312d, the elastic arms 312d are uniformly distributed around the gear ring body 311 d. Elastic joint arm 312d forms the ring gear clearance with ring gear main part 311d, and elastic joint arm 312d has been kept away from one side in ring gear clearance and has been seted up and connect the tooth's socket that matches with being connected to corresponding seting up on the lid body 2d inner wall to there is the clearance between connection tooth and the tooth's socket. The insert plate 33d includes ejector pins 331d in one-to-one correspondence with the gaps of the toothed rings, and the radius of the ejector pins 331d is gradually increased along the moving direction of the drive transmission mechanism 3d of the drive mechanism 5 d. When the thimble 331d is inserted into the gear ring gap, the elastic arm 312d is pressed and deformed toward the tooth space, so that the connecting tooth is engaged with the tooth space, and the connection relationship between the cover body 2d and the transmission mechanism 3d is formed. When the driving mechanism 5d pushes the thimble 331d to be pulled out from the gear ring gap, the elastic joint arm 312d is restored to the original state, so that the connecting teeth and the tooth grooves are separated, and the connection relationship between the cover body 2d and the transmission mechanism 3d disappears.

A circle of groove is formed between the upper cover 1d and the cover body 2d, and a sealing gasket 4d is arranged in the groove. This oil filler cap is used for sealing this gap of filling oil between lid and the oil pipe when installing on filling oil pipe.

Through-hole 21d has been seted up towards one side of oil tank to lid body 2d for inside lid body 2d passes through-hole 21d intercommunication oil tank, in this embodiment, actuating mechanism 5d is the diaphragm. The diaphragm has elasticity, covers the through hole 21d, and the peripheral edge is connected with the inner wall of the cover body 2d in a sealing manner, so that the communication between the inner cavity of the cover body 2d and the oil tank is isolated. The middle part of the diaphragm is abutted against the lower end of the ejector rod 33 d. When the pressure in the oil tank rises, the pressure pushes the diaphragm to move towards the inside of the cover body 2d, the push rod 31d is pushed to move upwards, and the inserting plate 33d is further pushed to move upwards, so that the push needle 331d is pulled out from the gear ring gap. Elastic joint arm 312d warp the recovery, connects tooth and tooth's socket separation, and on the rotation of upper cover 1d can't transmit lid body 2d through ring gear 32d, when oil tank internal pressure was too big promptly, can't take off this oil filler cap through rotating upper cover 1d, realized the protection to personnel.

The driving mechanism 5d can also adopt an electric control driving or a structural form of a piston and a sealing ring to obtain similar technical effects.

The returning means 6d is a spring in the present embodiment, and other driving mechanisms such as an elastic member or a motor may be adopted, and one end of the returning means is abutted against the upper cover 1d and the other end is abutted against the first connecting portion 31d and is arranged coaxially with the first connecting portion 31d and the push rod 33 d. When the air pressure in the oil tank returns to normal, the pressure applied to the diaphragm is reduced, and the elastic force of the resetting device 6d is larger than the pressure applied to the diaphragm by the gas in the oil tank. The insert plate 33d is pushed toward the ring gear 32d and the thimble 331d is reinserted into the ring gear gap. The connecting teeth of the elastic joint arm 312d are engaged with the tooth grooves again, and the rotation of the upper cover 1d can be transmitted to the cover body 2d through the engagement of the connecting teeth and the tooth grooves, so that the oil filler cover can be taken down by screwing the upper cover 1 d.

Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses an upper cover of diaphragm formula intelligence adds oil cap is connected through drive mechanism and lid body, and when oil tank internal pressure was too big, actuating mechanism can promote the thimble and take out from the ring gear clearance for connect tooth and tooth's socket separation, when rotating the upper cover and trying to take off this and add oil cap, the rotation of upper cover can't transmit to cover on one's body, makes this add oil cap can't take off, has avoided the emergence of hindering the people accident.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A diaphragm formula intelligence adds oil cap, its characterized in that includes: upper cover, lid body, drive mechanism and actuating mechanism, the upper cover with the lid body is connected and is enclosed formation transmission chamber, place in the drive mechanism the transmission intracavity is connected and is in the upper cover with between the lid body, the intercommunication has been seted up towards one side of oil tank to the lid body the through-hole in transmission chamber, actuating mechanism is for covering the flexible diaphragm of through-hole, its all around with lid body sealing connection, the diaphragm with drive mechanism one end butt.

2. The membrane smart fuel cap of claim 1 further comprising a reset device coupled to the actuator, wherein a restoring force of the reset device is opposite to a driving force of the actuator.

3. The membrane type intelligent oil filling cover according to claim 2, wherein the transmission mechanism comprises a toothed ring, the toothed ring comprises a toothed ring main body and at least one elastic joint arm, the toothed ring main body is fixedly connected with the upper cover, one end of the elastic joint arm is fixedly connected with the toothed ring main body and forms a toothed ring gap with the toothed ring main body, one side, far away from the toothed ring gap, of the elastic joint arm is provided with a connecting tooth, a tooth groove is formed in the inner wall of the cover body corresponding to the connecting tooth, and the transmission mechanism further comprises a thimble inserted into the toothed ring gap.

4. The membrane based fuel cap of claim 3, wherein the ring gear includes a plurality of resilient knuckle arms evenly distributed around the ring gear body.

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