Airtightness detection tool for oil pan

Abstract

The utility model discloses an airtightness detection tool for an oil pan, and the airtightness detection tool for the oil pan comprises a detection seat, the detection seat is provided with a containing cavity and an opening located in the top of the containing cavity, and the detection seat is provided with at least one ventilation flow channel. At least one port of the ventilation flow channel is formed on the inner wall of the detection seat so as to be communicated with the accommodating cavity, and one port of the ventilation flow channel is externally connected with an air pipe; the oil pan is arranged in the containing cavity in the mode that the oil pan corresponds to at least one port, formed in the inner wall of the detection base, of the ventilation flow channel and is in sealed connection with the inner wall, forming the corresponding port of the ventilation flow channel, of the detection base, and the top end of the oil pan installed on the detection base is lower than the height where the opening is located. The ventilation flow channel is used for introducing gas into a space formed by an oil pan installed on the detection base and the corresponding inner wall of the detection base, and the containing cavity can contain liquid. The device is compact in structure and easy to operate and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil pan detection, in particular to a gas tightness detection tool for an oil pan. BACKGROUND

[0002] Gearbox after-sales returns include oil pans with partial leakage, in order to verify whether the oil pan has the customer complaint fault, it is usually necessary to detect the gas tightness.

[0003] At present, when detecting, the staff needs to install the oil pan on the standard transmission, and the transmission with the oil pan is placed on the diving platform in the calibration area for water tightness test. The result of the water tightness test is determined by observing whether there is bubbling. Since the diving platform is relatively large, it is difficult to determine the specific leakage position of the oil pan, so manual inflation test is required subsequently. In the manual inflation test, foam is sprayed on the surface of the oil pan, and then the transmission with the oil pan is inflated. The specific leakage position of the oil pan is determined by observing whether the foam on the surface of the oil pan is blown.

[0004] Obviously, the current detection method is complicated, time-consuming and low in efficiency. Moreover, since the surface of the oil pan after the sale is usually dirty, it is easy to contaminate the diving platform, which increases the test cost. CONTENT OF THE INVENTION

[0005] To solve the above technical problems and achieve at least one advantage of the present application, the present application provides a gas tightness detection tool for an oil pan, which comprises:

[0006] A detection seat has a containing cavity and an open top communicating with the containing cavity. The detection seat has at least one air passage. At least one port of the air passage is formed on the inner wall of the detection seat to communicate with the containing cavity. One port of the air passage is connected with an air pipe. The oil pan is placed in the containing cavity in a manner corresponding to the at least one port of the air passage formed on the inner wall of the detection seat, and is sealedly connected with the inner wall of the detection seat corresponding to the port of the air passage. The top end of the oil pan installed on the detection seat is lower than the height of the open top. The air passage is used to introduce gas into the space formed by the oil pan installed on the detection seat and the corresponding inner wall of the detection seat. The containing cavity can contain liquid.

[0007] According to an embodiment of the present application, the air passage is provided with one, and the bottom wall of the detection seat is formed with a port of the air passage corresponding to the open top. The oil pan is placed in the containing cavity in a manner of being kept above the port of the air passage corresponding to the open top, and is sealedly connected with the bottom wall of the detection seat.

[0008] According to an embodiment of the present application, the plurality of vent flow channels are provided, and the bottom wall and the side wall of the detection seat are formed with ports of the vent flow channels. Each oil pan is placed in the receiving cavity in a manner corresponding to at least one port of the vent flow channels formed in an inner wall of the detection seat, and is in sealed connection with the corresponding inner wall of the detection seat.

[0009] According to an embodiment of the present application, the detection seat comprises a seat body and at least one sealing member. The receiving cavity, the opening and the vent flow channels are formed in the seat body. The sealing member is located in the receiving cavity and is mounted on an inner wall of the seat body formed with a port of the vent flow channel. When the oil pan is mounted on the detection seat, the sealing member is located between the corresponding oil pan and the corresponding inner wall of the seat body, so as to seal the corresponding oil pan and the corresponding inner wall of the seat body by the sealing member.

[0010] According to an embodiment of the present application, the inner wall of the seat body is formed with at least one set of matching holes, and the number of the set of matching holes is consistent with the number of mounting holes of the oil pan. The oil pan is in threaded connection with the seat body by a plurality of bolts in a manner that each mounting hole corresponds to a matching hole.

[0011] According to an embodiment of the present application, the seat body comprises a bottom plate and a surrounding plate. The surrounding plate is mounted on the bottom plate, and the surrounding plate and the bottom plate jointly form the receiving cavity. At least one set of matching holes is formed in the bottom plate or the surrounding plate. The opening is formed at an end of the surrounding plate away from the bottom plate. At least one port of a vent flow channel is formed in the bottom plate or the surrounding plate.

[0012] According to an embodiment of the present application, the vent flow channel formed in the bottom plate comprises at least one joint hole portion and an extension hole portion in communication with the joint hole portion. The joint hole portion is formed in the bottom plate, and a port of the joint hole portion away from the extension hole portion is formed on the upper surface of the bottom plate and is in communication with the receiving cavity. The extension hole portion is jointly formed by the bottom plate and the surrounding plate or is formed by the bottom plate. A port of the extension hole portion away from the joint hole portion is located on the circumferential side of the seat body and circumscribes the air pipe.

[0013] According to an embodiment of the present application, the joint hole portion is provided with one, and when an oil pan is in sealed connection with the bottom plate, a port of the joint hole portion away from the extension hole portion is located at the center of the space formed by the oil pan and the bottom plate.

[0014] According to an embodiment of the present application, the air tightness detection tool for the oil pan comprises a valve group. The valve group comprises at least one gas valve. The gas valve is mounted on the seat body and is located at an end portion of the vent flow channel away from the receiving cavity. The gas valve is used to open and close the vent flow channel, so as to control the situation of gas entering or being discharged from the vent flow channel.

[0015] According to one embodiment of this application, the valve assembly further includes a water valve, the seat has a drain port communicating with the receiving cavity, the water valve is installed on the seat, and the water valve is used to control the discharge of liquid in the receiving cavity through the drain port. Attached Figure Description

[0016] Fig. 1 A schematic diagram of the airtightness testing fixture for oil pan described in this application is shown.

[0017] Fig. 2 A cross-sectional view of the airtightness testing fixture for oil pan described in this application is shown. Detailed Implementation

[0018] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0019] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0020] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0021] refer to Figs. 1-2, a gas tightness detection tool for oil pan according to a preferred embodiment of the present application will be described in detail below, which comprises a detection seat 10 having a receiving cavity 101 and an opening 102 communicating with the receiving cavity 101 and located at the top of the receiving cavity 101, the detection seat 10 having at least one air passage 103, at least one port of the air passage 103 being formed on the inner wall of the detection seat 10 to communicate with the receiving cavity 101, and one port of the air passage 103 being connected with a gas pipe. The oil pan is placed in the receiving cavity 101 in a manner corresponding to the at least one port of the air passage 103 formed on the inner wall of the detection seat 10 and is sealingly connected with the inner wall of the detection seat 10 corresponding to the port of the air passage 103. The top end of the oil pan installed on the detection seat 10 is lower than the height of the opening 102. The air passage 103 is used to introduce gas into the space formed by the oil pan installed on the detection seat 10 and the corresponding inner wall of the detection seat 10, and the receiving cavity 101 is capable of containing liquid.

[0022] During testing, the oil pan is sealingly connected with an inner wall of the detection seat 10, gas is introduced into the space formed by the oil pan and the corresponding inner wall of the detection seat 10 through the air passage 103, and liquid is introduced into the receiving cavity 101 to immerse the oil pan. At this time, the gas tightness detection conclusion of the oil pan can be obtained by observing whether bubbles emerge and the position of the bubbles. Compared with the existing testing method, the structure of the present application is compact, easy to operate and maintain, reduces the quality cost and potential production safety risk caused by testing, and is simple to operate, greatly simplifies the testing process, significantly shortens the testing period, and improves the work efficiency.

[0023] Preferably, the air passage 103 is provided with one, and the bottom wall of the detection seat 10 is formed with a port of the air passage 103 corresponding to the opening 102. The oil pan is placed in the receiving cavity 101 in a manner of being maintained above the port of the air passage 103 corresponding to the opening 102 and is sealingly connected with the bottom wall of the detection seat 10. In this way, since the oil pan is placed horizontally in the receiving cavity 101, it provides a good observation field of view, enabling the worker to quickly determine the leakage position of the oil pan.

[0024] In an embodiment, the vent flow channels 103 are provided in plurality, and the bottom wall and the side wall of the detection seat 10 are provided with ports of the vent flow channels 103. Each oil pan is placed in the receiving cavity 101 in a manner corresponding to at least one port of the vent flow channels 103 formed in the corresponding inner wall of the detection seat 10, and is in sealed connection with the corresponding inner wall of the detection seat 10. In this way, multiple oil pans can be simultaneously assembled in the detection seat 10, and during testing, the air tightness detection conclusion of the corresponding oil pan can be obtained by observing whether each oil pan bubbles and the position of the bubbles, so as to simultaneously detect multiple oil pans and improve work efficiency.

[0025] Reference Figs. 1-2 The detection seat 10 includes a seat body 11 and at least one sealing member 12. The receiving cavity 101, the opening 102, and the vent flow channels 103 are formed in the seat body 11, and the sealing member 12 is located in the receiving cavity 101 and is mounted on the inner wall of the seat body 11 which is provided with the ports of the vent flow channels 103. When the oil pan is mounted in the detection seat 10, the sealing member 12 is located between the corresponding oil pan and the corresponding inner wall of the seat body 11, so as to seal and connect the corresponding oil pan and the corresponding inner wall of the seat body 11 through the sealing member 12.

[0026] Preferably, the sealing member 12 is implemented as a sealing ring.

[0027] Preferably, the inner wall of the seat body 11 is provided with at least one set of matching holes 1101, and the number of the set of matching holes 1101 is consistent with the number of mounting holes of the oil pan. The oil pan is threadedly connected to the seat body 11 through a plurality of bolts in a manner that each mounting hole corresponds to one matching hole 1101.

[0028] Preferably, the seat body 11 includes a bottom plate 111 and a surrounding plate 112. The surrounding plate 112 is mounted on the bottom plate 111, and the surrounding plate 112 and the bottom plate 111 jointly form the receiving cavity 101. At least one set of matching holes 1101 is formed in the bottom plate 111 or the surrounding plate 112. The opening 102 is formed at an end of the surrounding plate 112 away from the bottom plate 111, and at least one port of the vent flow channels 103 is formed in the bottom plate 111 or the surrounding plate 112.

[0029] In an embodiment, the surrounding plate 112 is integrally formed with the bottom plate 111.

[0030] In another embodiment, the surrounding plate 112 is welded to the upper surface of the bottom plate 111.

[0031] In yet another embodiment, the surrounding plate 112 is welded to the circumferential side of the bottom plate 111.

[0032] Preferably, the surrounding plate 112 is made of transparent material so as to observe the oil pan in the accommodating cavity 101.

[0033] It is worth mentioning that at least one port is formed in the air passage 103 of the bottom plate 111, which includes at least one joint hole portion 1031 and an extension hole portion 1032 in communication with the joint hole portion 1031. The joint hole portion 1031 is formed in the bottom plate 111, and the joint hole portion 1031 is formed in the upper surface of the bottom plate 111 away from the extension hole portion 1032 and in communication with the accommodating cavity 101. The extension hole portion 1032 is formed by the bottom plate 111 and the surrounding plate 112 or by the bottom plate 111. The extension hole portion 1032 is located on the side of the seat body 11 away from the joint hole portion 1031 and circumscribes the air pipe so as to supply or exhaust air from the side of the detection seat 10, simplify the arrangement of the air pipe, and reduce the cost of the air pipe.

[0034] Preferably, the joint hole portion 1031 is provided with one. When the oil pan is sealingly connected with the bottom plate 111, the joint hole portion 1031 is located at the center of the space formed by the oil pan and the bottom plate 111 away from the extension hole portion 1032 so as to diffuse the gas.

[0035] In an embodiment, the joint hole portion 1031 is provided with a plurality of joint hole portions. When air is supplied to the space formed by the oil pan and the bottom plate 111, the gas flowing through the extension hole portion 1032 is dispersed and introduced into a plurality of joint hole portions 1031, so as to be introduced into the space formed by the oil pan and the bottom plate 111 through a plurality of joint hole portions 1031, so as to achieve rapid inflation and save test cycles.

[0036] Reference Figs. 1-2 , the air tightness detection tool for the oil pan includes a valve group 20, the valve group 20 includes at least one air valve 21, the air valve 21 is installed on the seat body 11 and located at the end of the air passage 103 away from the accommodating cavity 101, the air valve 21 is used to open and close the air passage 103, so as to control the situation of air entering or exhausting from the air passage 103.

[0037] The valve group 20 further includes a water valve 22, the seat body 11 has a drain port 1102 in communication with the accommodating cavity 101, the water valve 22 is installed on the seat body 11, and the water valve 22 is used to control the situation of liquid in the accommodating cavity 101 being discharged through the drain port 1102.

[0038] Those skilled in the art will understand that the above description and the accompanying drawings are only examples of the embodiments of the present application and do not limit the present application. The advantages of the present application have been fully and effectively achieved. The functional and structural principles of the present application have been shown and described in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principles.

Claims

1. A leak detection tool for an oil pan, characterized by, The air tightness detection tool for oil sump comprises: The detection seat has a containing cavity and an opening communicating with the containing cavity and located at the top of the containing cavity, and has at least one air passage, at least one port of which is formed on the inner wall of the detection seat to communicate with the containing cavity, and one port of which is circumscribed by a gas pipe, the oil sump is placed in the containing cavity in a manner corresponding to the at least one port of the air passage formed on the inner wall of the detection seat and is sealingly connected with the inner wall of the detection seat corresponding to the port of the air passage, the top end of the oil sump installed on the detection seat is lower than the height of the opening, the air passage is used to introduce gas into the space formed by the oil sump installed on the detection seat and the corresponding inner wall of the detection seat, and the containing cavity can contain liquid.

2. The air tightness detection tool for an oil pan according to claim 1, wherein The air passage is provided with one, and the bottom wall of the detection seat is formed with a port of the air passage corresponding to the opening, and the oil sump is placed in the containing cavity in a manner of being kept above the port of the air passage corresponding to the opening and is sealingly connected with the bottom wall of the detection seat.

3. The air tightness detection tool for an oil pan according to claim 1, wherein The air passage is provided with multiple, and the bottom wall and the side wall of the detection seat are formed with ports of the air passage, and each oil sump is placed in the containing cavity in a manner of corresponding to the at least one port of the air passage formed on one inner wall of the detection seat and is sealingly connected with the corresponding inner wall of the detection seat.

4. The air tightness detection tool for an oil pan according to claim 2 or 3, characterized in that, The detection seat comprises a seat body and at least one sealing member, the containing cavity, the opening and the air passage are formed in the seat body, and the sealing member is located in the containing cavity and is installed on the inner wall of the seat body formed with the port of the air passage, and when the oil sump is installed on the detection seat, one sealing member is located between the corresponding oil sump and the corresponding inner wall of the seat body to sealingly connect the corresponding oil sump and the corresponding inner wall of the seat body through the sealing member.

5. The air tightness detection tool for an oil pan according to claim 4, wherein The inner wall of the seat body is formed with at least one set of matching holes, and the number of one set of the matching holes is consistent with the number of the mounting holes of the oil sump, and the oil sump is threadedly connected with the seat body through multiple bolts in a manner that each mounting hole corresponds to one matching hole.

6. The air tightness detection tool for an oil pan according to claim 5, wherein The seat body comprises a bottom plate and a surrounding plate, the surrounding plate is installed on the bottom plate, and the surrounding plate and the bottom plate jointly form the containing cavity, at least one set of the matching holes are formed on the bottom plate or the surrounding plate, the opening is formed on one end of the surrounding plate away from the bottom plate, and at least one port of one air passage is formed on the bottom plate or the surrounding plate.

7. The air tightness detection tool for an oil pan according to claim 6, wherein The air passage formed on the bottom plate with at least one port comprises at least one joint hole portion and an extension hole portion communicating with the joint hole portion, the joint hole portion is formed on the bottom plate, and one port of the joint hole portion away from the extension hole portion is formed on the upper surface of the bottom plate and communicates with the containing cavity, the extension hole portion is jointly formed by the bottom plate and the surrounding plate or is formed by the bottom plate, and one port of the extension hole portion away from the joint hole portion is located on the circumferential side of the seat body and circumscribes a gas pipe.

8. The air tightness detection tool for an oil pan according to claim 7, wherein The abutment hole is provided with one end which is located in the center of the space formed by the oil pan and the bottom plate when the oil pan is sealingly connected with the bottom plate.

9. The air tightness detection tool for an oil pan according to claim 4, wherein The air tightness detection tool for the oil pan comprises a valve group, the valve group comprises at least one air valve, the air valve is installed on the seat body and located at one end of the air passage far from the containing cavity, and the air valve is used for opening and closing the air passage to control the air entering or discharging from the air passage.

10. The air tightness detection tool for an oil pan according to claim 9, wherein The valve group further comprises a water valve, the seat body has a water outlet communicating with the containing cavity, and the water valve is installed on the seat body and used for controlling the liquid in the containing cavity to discharge through the water outlet.

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