Pressure detection equipment for electric cooker production

Abstract

The present application relates to the field of electric cooker accessory detection, especially to a pressure detection equipment for electric cooker production. Technical problem: The existing electric cooker pressure detection method is relatively single, and cannot simulate the scene of electric cooker in specific use. Technical scheme: A pressure detection equipment for electric cooker production, comprising a detection cylinder and a pressure gauge; the detection cylinder is connected with the pressure gauge. The present application realizes the detection of pressure relief valve and the detection of electric cooker pressure after the production and assembly of electric cooker, adopts the mode of dialing to simulate the scene of pressure relief valve rotating, then detects the pressure of electric cooker, simulates the scene of complete blockage and partial blockage of pressure relief valve, detects the size of electric cooker pressure after the separation of pressure relief valve and electric cooker, detects the pressure of electric cooker in various conditions, and judges whether the electric cooker and pressure relief valve are qualified according to the detected data, expands the detection range and improves the detection quality.

Description

Technical Field

[0001] This invention relates to the field of electric cooker component testing, and more particularly to a pressure testing device for electric cooker production. Background Technology

[0002] With economic development and the continuous improvement of people's living standards, pressure cookers have become a common cooking appliance in people's lives. Pressure cookers are generally divided into two categories. One is the traditional pressure cooker that uses open flame heating; the other is the electric pressure cooker that uses electric energy heating. Because electric pressure cookers can realize automatic control of the cooking program, they are more convenient to use than pressure cookers that use open flame heating, and therefore have gained the favor of consumers.

[0003] In existing technologies, after the electric cooker is manufactured and assembled, its pressure needs to be tested. The current method for testing the pressure of an electric cooker is to fill the inner pot with water, power on the cooker, and then remove the pressure relief valve from the cooker. The pressure is then measured through the vent hole fixed to the cooker with a pressure gauge. However, this testing method fails to consider the actual usage scenarios of the electric cooker, such as the pressure relief valve vibrating during use or being blocked by food residue. There are two scenarios for food residue blockage: partial blockage and complete blockage. In addition, there is the possibility of the pressure relief valve being damaged. As a result, the existing test data is incomplete, and the quality of the electric cooker fails to meet the usage requirements. Summary of the Invention

[0004] In order to overcome the shortcomings of existing electric cooker pressure detection methods, which are relatively simple and cannot simulate the actual use of electric cookers, this invention provides a pressure detection device for electric cooker production.

[0005] The technical solution is as follows: A pressure testing device for electric cooker production includes a testing cylinder, a pressure gauge, and a first suction cup; the pressure gauge for detecting pressure values ​​is connected to the testing cylinder, an airtightness detector is installed inside the testing cylinder, and two sliding grooves are formed on the outer surface of the testing cylinder; a first suction cup for fitting the electric cooker lid is installed on the testing cylinder; it also includes a sealing system, a lifting assembly, a power assembly, a second suction cup, a first electric push rod, and a clamping system; the sealing system is connected to the testing cylinder; the sealing system is connected to the first suction cup; the lifting assembly is connected to the testing cylinder; the power assembly is connected to the testing cylinder; the power assembly is connected to the lifting assembly, and the lifting assembly drives the components of the power assembly to move up and down; two second suction cups for sealing pressure relief valves are connected to the power assembly; each second suction cup is equipped with two first electric push rods for limiting the pressure relief valves; the testing cylinder and the power assembly are jointly connected to the clamping system.

[0006] As an improvement to the above solution, an air inlet pipe is installed on the detection cylinder, and a one-way valve is installed on the air inlet pipe. The air inlet pipe is used to clean the water vapor inside the detection cylinder.

[0007] As an improvement to the above solution, an annular groove is formed on the outer surface of the first suction cup.

[0008] As an improvement to the above solution, the second suction cup is made of silicone material and is designed in a semi-circular shape.

[0009] As an improvement to the above solution, a rubber limiting ball is provided on the telescopic end of the first electric push rod.

[0010] As an improvement to the above solution, the sealing system includes a mounting plate, a second electric push rod, a connecting plate, elastic elements, and a limiting ring; the mounting plate is located above the pressure gauge; two second electric push rods are fixedly connected to the lower part of the mounting plate; a connecting plate is slidably connected to each of the two grooves opened on the detection cylinder; the telescopic ends of the two second electric push rods are fixedly connected to a connecting plate respectively; two elastic elements are fixedly connected to each of the two grooves opened on the detection cylinder; two elastic elements on the same side are fixedly connected to a connecting plate; a limiting ring is fixedly connected to the outer surface of the first suction cup; the two connecting plates are jointly fixedly connected to the limiting ring.

[0011] As an improvement to the above solution, the power assembly includes a connecting rod, a first gear, a motor, and a second gear; the lower part of the lifting assembly is rotatably connected to the connecting rod; the first gear is fixedly connected to the outer surface of the connecting rod; the outer surface of the detection cylinder is fixedly connected to the motor; the second gear is fixedly connected to the output shaft of the motor; the second gear cooperates with the first gear for transmission.

[0012] As an improvement to the above solution, the clamping system includes a fourth electric push rod, a telescopic plate, a limiting rod, a limiting block, and a limiting plate; three fourth electric push rods arranged in a circular array are fixedly connected to the outer surface of the detection cylinder; the telescopic ends of the three fourth electric push rods pass into the detection cylinder and are each fixedly connected to a telescopic plate; a limiting rod is fixedly connected to the opposite side of each of the three telescopic plates; a limiting block is fixedly connected to the lower part of each of the three limiting rods; three limiting plates arranged in a circular array are fixedly connected to the lower part of the first gear; the limiting plates are in contact with the limiting rods.

[0013] As an improvement to the above solution, the inner side of the limit block is designed with an arc shape to increase the contact area with the pressure relief valve.

[0014] As an improvement to the above solution, the limiting plate has a gradually changing arc-shaped structure that moves clockwise towards the center of the first gear shaft from a top-down viewing angle.

[0015] The present invention has the following advantages: The present invention realizes the detection of pressure relief valve and pressure of electric cooker after production and assembly. It adopts a toggle method to simulate the scenario of pressure relief valve rotation, and then detects the pressure of electric cooker. It also simulates the scenarios of complete blockage and partial blockage of pressure relief valve. At the same time, it detects the pressure of electric cooker after pressure relief valve is separated from electric cooker, so as to detect the pressure of electric cooker under various conditions. Based on the detected data, it can determine whether electric cooker and pressure relief valve are qualified, thus expanding the detection range and improving the detection quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pressure testing equipment used in the production of electric cookers according to the present invention;

[0017] Figure 2 This is an enlarged view of area A of the pressure testing equipment for electric cooker production according to the present invention;

[0018] Figure 3 This is a schematic diagram of the first combined structure of the lifting component and the power component of the pressure detection equipment for electric cooker production according to the present invention.

[0019] Figure 4 This is a schematic diagram of a second combined structure of the lifting assembly and the power assembly of the pressure detection equipment for electric cooker production according to the present invention.

[0020] Figure 5 This is a schematic diagram of the first structure of the clamping system of the pressure detection equipment for electric cooker production of the present invention.

[0021] Figure 6 This is a schematic diagram of the second structure of the clamping system of the pressure detection equipment for electric cooker production of the present invention;

[0022] Figure 7 This is an enlarged view of area B of the clamping system of the pressure testing equipment for electric cooker production of the present invention;

[0023] Figure 8 This is a partial structural schematic diagram of the clamping system of the pressure testing equipment for electric cooker production according to the present invention.

[0024] The labels in the diagram are as follows: 1-Detection cylinder, 2-Pressure gauge, 3-First suction cup, 4-Second suction cup, 5-First electric push rod, 6-Air inlet pipe, 101-Mounting plate, 102-Second electric push rod, 103-Connecting plate, 104-Elastic element, 105-Limiting ring, 401-Third electric push rod, 402-Connecting shaft, 403-Connecting rod, 404-First gear, 405-Motor, 406-Second gear, 501-Fourth electric push rod, 502-Telescopic plate, 503-Limiting rod, 504-Limiting block, 505-Limiting plate. Detailed Implementation

[0025] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0026] Example 1

[0027] A pressure testing device for electric cooker production, such as Figure 1-4 As shown, it includes a detection cylinder 1, a pressure gauge 2, and a first suction cup 3; the pressure gauge 2 is bolted to the upper part of the detection cylinder 1, an airtightness detector is installed inside the detection cylinder 1, and two sliding grooves are opened on the outer surface of the detection cylinder 1; the first suction cup 3 is fixedly connected to the lower surface of the detection cylinder 1; the outer surface of the first suction cup 3 has an annular groove, which provides deformation space for the edge of the first suction cup 3 and increases the squeezing effect on it during the operation of the sealing system;

[0028] It also includes a sealing system, a lifting assembly, a power assembly, a second suction cup 4, a first electric push rod 5, an air inlet pipe 6, and a clamping system; the sealing system is connected to the detection cylinder 1; the sealing system is connected to the first suction cup 3; the lifting assembly is connected to the upper inner wall of the detection cylinder 1; the power assembly is connected to the detection cylinder 1; the power assembly is connected to the lifting assembly, and the lifting assembly drives the components of the power assembly to move up and down; two symmetrically arranged second suction cups 4 are connected to the middle of the power assembly; the second suction cups 4 are made of silicone material and are designed in a semi-circular structure to simulate the corresponding scenario when the electric cooker is in use; each second suction cup 4 is provided with two symmetrically arranged first electric push rods 5; the telescopic end of the first electric push rod 5 is provided with a rubber limiting ball, and its surface is rough to increase friction; the detection cylinder 1 and the power assembly are connected to the clamping system; the air inlet pipe 6 is provided on the detection cylinder 1, and a one-way valve is provided on the air inlet pipe 6.

[0029] The sealing system includes a mounting plate 101, a second electric push rod 102, a connecting plate 103, elastic elements 104, and a limiting ring 105. The mounting plate 101 is located above the pressure gauge 2. Two symmetrically arranged second electric push rods 102 are bolted to the lower part of the mounting plate 101. A connecting plate 103 is slidably connected to each of the two grooves opened on the detection cylinder 1. The telescopic ends of the two second electric push rods 102 are fixedly connected to a connecting plate 103 respectively. Two elastic elements 104 are fixedly connected to each of the two grooves opened on the detection cylinder 1. Two elastic elements 104 on the same side are fixedly connected to a connecting plate 103. A limiting ring 105 is embedded in the outer surface of the first suction cup 3. The two connecting plates 103 are fixedly connected to the limiting ring 105 together.

[0030] The lifting assembly includes a third electric push rod 401 and a connecting shaft 402; the inner upper wall of the detection cylinder 1 is bolted with two symmetrically arranged third electric push rods 401; the telescopic ends of the two third electric push rods 401 are fixedly connected to the connecting shaft 402.

[0031] The power assembly includes a connecting rod 403, a first gear 404, a motor 405, and a second gear 406; the connecting rod 403 is rotatably connected to the lower part of the connecting shaft 402; the first gear 404 is fixedly connected to the outer surface of the connecting rod 403; the motor 405 is bolted to the outer surface of the detection cylinder 1; the second gear 406 is fixedly connected to the output shaft of the motor 405; the second gear 406 cooperates with the first gear 404 for transmission.

[0032] First, the staff uses bolts to install the pressure testing equipment for electric cooker production directly above the conveyor belt carrying the electric cookers. Then, the equipment is powered on and tested. Next, the external conveyor system moves the electric cooker within the operating range of the pressure testing equipment. The staff then plugs in the electric cooker to be tested and controls its operation, causing the internal pressure to rise. Then, the second electric push rod 102 pushes the connecting plate 103 downwards. The connecting plate 103 causes its connected components to move downwards, specifically the elastic element 104 and the limiting ring 105. The limiting ring 105 causes the first suction cup 3 to move downwards, approaching and contacting the surface of the electric cooker, allowing the pressure relief valve on the electric cooker to... The device is inserted into the detection cylinder 1, and then the second electric push rod 102 is controlled to further push the connecting plate 103; causing the connecting plate 103 to slide downward in the groove opened on the detection cylinder 1 and compress the elastic element 104; at the same time, the connecting plate 103 drives the limiting ring 105 to move downward and squeeze the first suction cup 3, so that the first suction cup 3 is tightly attached to the surface of the electric cooker. Then, the air tightness detector built into the detection cylinder 1 is controlled to operate to detect the air tightness in the space sealed by the first suction cup 3 and the detection cylinder 1. When the air tightness detector alarms, it means that there is a gap in the space sealed by the first suction cup 3 and the detection cylinder 1. Then, it is manually controlled to reset and the lower surface of the first suction cup 3 and the surface of the electric cooker lid are wiped to clean the impurities on the lower surface of the first suction cup 3 and the surface of the electric cooker lid, so as to ensure the accuracy of the detection data.Then, the third electric push rod 401 pushes the connecting shaft 402 downward, the connecting shaft 402 drives the connecting rod 403 downward, and the connecting rod 403 drives the first gear 404 downward, so that the first gear 404 meshes with the second gear 406. During this process, the connecting rod 403 drives the second suction cup 4 and the first electric push rod 5 downward to approach the pressure relief valve. Then, one of the first electric push rods 5 is controlled to push the rubber ball connected to it downward to approach and contact the pressure relief valve, so that the rubber ball on the first electric push rod 5 limits the pressure relief valve. Then, the motor 405 is controlled to drive the second gear 406. The rotation of gear 406 causes the second gear 406 to rotate counterclockwise from a top-down perspective. This, in turn, causes the first gear 404 to rotate clockwise from a top-down perspective. The first gear 404 then rotates the connecting rod 403, which in turn rotates the second suction cup 4 and the first electric push rod 5. This causes the rubber ball on the first electric push rod 5 to rotate the pressure relief valve, simulating the pressure relief valve rotation during the operation of the electric cooker. This allows for the determination of the electric cooker's pressure under these conditions. Finally, the motor 405 is controlled to stop operating. Then, the first electric push rod 5 is controlled to retract, causing the rubber ball connected to it to retract into the second suction cup 4. Next, the third electric push rod 401 is controlled to further push the connecting shaft 402 downward. The connecting shaft 402 drives the connecting rod 403 downward, and the connecting rod 403 drives the second suction cup 4 downward to fit against the pressure relief valve, thereby sealing the pressure relief valve. This simulates whether there is leakage at the connection of the pressure relief valve after it is blocked during use, in order to determine whether the pressure relief valve is damaged. Then, the two first electric push rods 5 on the left or right are controlled to push the rubber ball connected to them, so that the rubber ball... The ball contacts the pressure relief valve, and then, under the further push of the first electric push rod 5, the corresponding second suction cup 4 is lifted, creating a gap between the second suction cup 4 and the pressure relief valve. This simulates a partial blockage of the pressure relief valve, allowing for the assessment of the pressure level after partial blockage and whether the electric cooker can operate normally. All test data is obtained by reading the values ​​on pressure gauge 2 and comparing them with the rated values ​​to determine if they meet the requirements. After completing the test, the operator uses an external pump connected to the air inlet pipe 6 to introduce gas into the test cylinder 1 to remove water vapor.

[0033] Example 2

[0034] Based on the above embodiments, such as Figure 5-8As shown, the clamping system includes a fourth electric push rod 501, a telescopic plate 502, a limiting rod 503, a limiting block 504, and a limiting plate 505. Three fourth electric push rods 501 arranged in a circular array are bolted to the outer surface of the detection cylinder 1. The telescopic ends of the three fourth electric push rods 501 penetrate into the detection cylinder 1 and are each fixedly connected to a telescopic plate 502. A limiting rod 503 is fixedly connected to the opposing sides of each of the three telescopic plates 502. A limiting block 504 is fixedly connected to the lower part of each of the three limiting rods 503. The inner surface of the limiting block 504 has an arc-shaped structure to increase the contact area with the pressure relief valve, and its surface is rough to increase friction. Three limiting plates 505 arranged in a circular array are fixedly connected to the lower part of the first gear 404. The limiting plate 505 has a gradually changing arc-shaped structure that gradually approaches the axis of the first gear 404 in a clockwise direction from a top-down viewing angle. The limiting plate 505 contacts the limiting rod 503.

[0035] After simulating the scenario encountered when using the pressure relief valve, first control motor 405 to drive the second gear 406 to rotate, that is, drive the second gear 406 to rotate clockwise from a top-down perspective. The second gear 406 drives the first gear 404 to rotate, that is, drive the first gear 404 to rotate counterclockwise from a top-down perspective. The first gear 404 drives the limiting plate 505 to rotate counterclockwise. During this process, the limiting plate 505 squeezes the limiting rod 503, forcing the limiting rod 503 to move against the inner arc surface of the limiting plate 505, so that the limiting rod 503 moves closer to the pressure relief valve. At the same time, the limiting rod 503 stretches the corresponding telescopic plate 502, so that the limiting block 504 moves closer to the pressure relief valve and gradually fits against the pressure relief valve to clamp and fix the pressure relief valve. Then control the fourth electric push rod 501 to retract and drive the telescopic plate 502 to rotate counterclockwise. 2. Moving upwards, the telescopic plate 502 drives the connected components to move upwards. Specifically, the telescopic plate 502 drives the limiting rod 503 and the limiting block 504 to move upwards. The limiting block 504 drives the pressure relief valve, which is clamped and fixed, to move upwards. At the same time, the third electric push rod 401 retracts. The third electric push rod 401 drives the connecting shaft 402 to move upwards. The connecting shaft 402 drives the connecting rod 403 to move upwards. The connecting rod 403 drives the first gear 404 to move upwards. The first gear 404 drives the limiting plate 505 to move upwards, so as to cooperate in driving the pressure relief valve, which is clamped and fixed, to move upwards, so that the pressure relief valve is separated from the electric cooker. This allows the specific pressure value of the electric cooker to be determined, and whether the pressure meets the standard. During this process, the value on the pressure gauge 2 is read and compared with the rated value to determine whether it meets the requirements.

[0036] During the testing of the pressure relief valve, in the simulated scenario of the pressure relief valve rotating: when the rubber ball on the first electric push rod 5 drives the pressure relief valve to rotate, the first gear 404 simultaneously drives the limiting plate 505 to rotate, that is, drives the limiting plate 505 to rotate clockwise from a top-down perspective. At the same time, the limiting plate 505 presses against the limiting rod 503, forcing the limiting rod 503 to conform to the outer surface of the limiting plate 505. During this process, the pressure relief valve is limited by the limiting block 504, preventing excessive swing amplitude when the pressure relief valve rotates; in the simulation In the case of a blocked pressure relief valve: Before the second suction cup 4 seals the pressure relief valve, the motor 405 is controlled to drive the second gear 406 to rotate clockwise. The second gear 406 drives the first gear 404 to rotate counterclockwise. The first gear 404 drives the limiting plate 505 to rotate and squeeze the limiting rod 503, forcing the limiting rod 503 to move against the inner arc surface of the limiting plate 505. Then, the limiting rod 503 drives the limiting block 504 to approach and limit the pressure relief valve, preventing the pressure relief valve from shifting during the sealing process of the second suction cup 4.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure detecting apparatus for an electric cooker production, characterized by, The utility model provides a kind of electric pressure cooker leak detection device, including detection cylinder (1), pressure gauge (2) and first suction cup (3);Detection cylinder (1) is connected with pressure gauge (2) for detecting pressure value, airtightness detector is installed in the inside of detection cylinder (1), two sliding grooves are opened on the outer surface of detection cylinder (1);First suction cup (3) is installed on detection cylinder (1) for sticking electric cooker cover;It further includes sealing system, lifting assembly, power assembly, second suction cup (4), first electric push rod (5) and clamping system;Sealing system is connected on detection cylinder (1);Sealing system is connected with first suction cup (3);Lifting assembly is connected on detection cylinder (1);Power assembly is connected on detection cylinder (1);Power assembly is connected with lifting assembly, and the components of power assembly are moved up and down by lifting assembly;Two second suction cups (4) for plugging pressure relief valve are connected on power assembly;Two first electric push rods (5) for limiting pressure relief valve are installed on each second suction cup (4);Detection cylinder (1) and power assembly are connected with clamping system.

2. The pressure detection apparatus for an electric cooker according to claim 1, wherein Air inlet pipe (6) is provided on detection cylinder (1), one-way valve is provided on air inlet pipe (6), and air inlet pipe (6) is used for cleaning water vapor in detection cylinder (1).

3. The pressure detection apparatus for an electric cooker according to claim 1, wherein Annular groove is opened on the outer surface of first suction cup (3).

4. The pressure detection apparatus for an electric cooker according to claim 1, wherein Second suction cup (4) is provided with silicone material and is provided with semicircular structure.

5. The pressure detection apparatus for an electric cooker according to claim 1, wherein Limiting ball of rubber material is provided on the telescopic end of first electric push rod (5).

6. The pressure detection apparatus for an electric cooker according to claim 1, wherein Sealing system includes mounting plate (101), second electric push rod (102), connecting plate (103), elastic member (104) and limiting ring (105);Mounting plate (101) is arranged above pressure gauge (2);Two second electric push rods (102) are fixedly connected to the lower part of mounting plate (101);One connecting plate (103) is slidably connected in each of the two sliding grooves opened on detection cylinder (1);The telescopic end of two second electric push rods (102) is fixedly connected with one connecting plate (103) respectively;Two elastic members (104) are fixedly connected in each of the two sliding grooves opened on detection cylinder (1);Two elastic members (104) on the same side are fixedly connected with one connecting plate (103);Limiting ring (105) is fixedly connected to the outer surface of first suction cup (3);Two connecting plates (103) are fixedly connected with limiting ring (105) together.

7. The pressure detection apparatus for an electric cooker according to claim 1, wherein Power assembly includes connecting rod (403), first gear (404), motor (405) and second gear (406);Connecting rod (403) is rotatably connected to the lower part of lifting assembly;First gear (404) is fixedly connected to the outer surface of connecting rod (403);Motor (405) is fixedly connected to the outer surface of detection cylinder (1);Second gear (406) is fixedly connected to the output shaft of motor (405);Second gear (406) is driven in cooperation with first gear (404).

8. The pressure detection apparatus for an electric cooker according to claim 7, wherein The clamping system comprises a fourth electric push rod (501), an expansion plate (502), a limiting rod (503), a limiting block (504) and a limiting plate (505); the outer surface of the detection cylinder (1) is fixedly connected with three fourth electric push rods (501) arranged in an annular array; the expansion ends of the three fourth electric push rods (501) penetrate into the detection cylinder (1) and are each fixedly connected with an expansion plate (502); the opposite sides of the three expansion plates (502) are each fixedly connected with a limiting rod (503); the lower parts of the three limiting rods (503) are each fixedly connected with a limiting block (504); the lower part of the first gear (404) is fixedly connected with three limiting plates (505) arranged in an annular array; the limiting plates (505) are in contact with the limiting rods (503).

9. The pressure detection apparatus for an electric cooker according to claim 8, wherein The inner side surface of the limiting block (504) is arranged in an arc-shaped structure, so as to increase the contact area with the pressure relief valve.

10. The pressure detection apparatus for an electric cooker according to claim 8, wherein The limiting plate (505) is arranged in a gradually changing arc-shaped structure which gradually approaches the axis of the first gear (404) in a clockwise direction from the top-down perspective.

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