A performance testing device for electric water heater accessories

Abstract

The present invention relates to the technical field of electric water heater application, and in particular to a performance testing device for electric water heater accessories, comprising an outer frame, wherein the front end of the outer frame is fixedly connected to a front frame, and the front frame is provided with a plurality of mounting holes running through the front and rear, the mounting holes being used to place the tube bodies of heating tubes, and a sealing mechanism for sealing two mounting openings of a plurality of heating tubes is provided in the front frame, and a covering mechanism for separately sealing and covering the tube bodies of the plurality of heating tubes is provided between the rear side walls of the front frame and the outer frame. The sealing mechanism and the covering mechanism adopted in the present invention are used in combination to perform airtightness quality testing on a plurality of heating tubes at a time, and the detection adopts an external pressurization method that is more in line with the use conditions of the heating tubes and provides real feedback on the application conditions of the heating tubes. Synchronous detection of multiple groups of heating tubes can not only perform comparisons and further ensure detection accuracy, but also significantly improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electric water heater applications, and in particular to a performance detection device for electric water heater accessories. Background Art

[0002] Electric water heaters are commonly used hot water supply devices in homes and commercial places. They use electricity to heat the water in the water tank to a set temperature for daily use. Electric water heaters contain a variety of accessories, which are generally divided into heating elements, temperature control accessories, safety accessories and electrical accessories. Among them, the heating element generally uses a heating tube or electric heating rod. The heating tube is usually made of a metal tube with a resistance wire inside. When current passes through the resistance wire, it generates heat, thereby heating the surrounding water.

[0003] Since the heating tube works in water, in order to ensure that the heating tube does not leak during use and to ensure the safe operation of the electric water heater, the heating tube is generally tested for air tightness after production is completed.

[0004] There are many ways to detect the air tightness of existing heating tubes. The most common one is to inflate the opening at one end of the heating tube installation port and close the opening at the other end in real time, and use an ultrasonic detector to detect the ultrasonic signal generated by the gas leakage. Although this method can find the leakage point, for the heating tube, when the production is completed, it is only necessary to judge whether it is qualified. The ultrasonic detector needs to perform a comprehensive detection on a single heating tube, which takes a long time to complete the detection and has low work efficiency. It is not suitable for batch detection of heating tubes. In addition, when the heating tube is working, there is high pressure outside. The use of internal pressurization does not meet the specific working state of the heating tube and is not conducive to judging the qualification standard. Summary of the Invention

[0005] Technical problem to be solved: The present invention provides an electric water heater accessories performance detection device that can solve the above-mentioned problems.

[0006] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an electric water heater accessory performance detection device, comprising an outer frame, a front frame fixedly connected to the front end of the outer frame, a plurality of mounting holes running through the front and rear of the front frame, the mounting holes being used to place the tube body of the heating tube, a sealing mechanism for sealing the two mounting ports of the plurality of heating tubes being provided in the front frame, and a covering mechanism for separately sealing and covering the tube bodies of the plurality of heating tubes being provided between the rear side walls of the front frame and the outer frame.

[0007] The sealing mechanism includes a movable plate movably arranged in the front frame, and two mounting ports on the movable plate corresponding to each heating tube are fixedly connected with sealing caps. Among the two sealing caps installed on a single heating tube, one of the sealing caps is installed with a pressure gauge. Both sides of the movable plate are commonly provided with a docking assembly for controlling its forward and backward movement, and a locking tube assembly for locking the tube body of each heating tube is provided in the rear side wall of the front frame.

[0008] The covering mechanism includes a movable plate 2 movably arranged between the front frame and the rear side wall of the outer frame. A number of covering tubes are distributed on the movable plate 2 corresponding to the tube bodies of the heating tubes. A threaded sleeve is fixedly connected to each covering tube on the rear side wall of the front frame. The threaded sleeve is connected to the front end of the covering tube through a thread. A sealing ring is fixedly connected to the front end of the covering tube. Two docking assemblies for controlling its forward and backward movement are provided on both sides of the movable plate 2. A screw connection assembly for controlling its threaded connection with each threaded sleeve is provided on the rear side of each covering tube.

[0009] By cooperating with the sealing mechanism and the covering mechanism, the air tightness detection of multiple heating tubes can be completed simultaneously.

[0010] As a preferred technical solution of the present invention, the docking assembly includes a screw rod rotatably connected to the left side of the front frame, and a guide rod fixedly connected to the right side of the front frame. The left side of the movable plate is threadedly connected to the screw rod, and the right side of the movable plate is slidingly connected to the guide rod. The front end of the screw rod extends to the outside of the front frame and is fixedly connected to the output end of the motor, and the motor is fixedly connected to the outside of the front frame.

[0011] As a preferred technical solution of the present invention, the locking tube assembly includes a through-hole which is opened on the rear side wall of the front frame in the upper and lower directions, and a clamping plate is symmetrically connected to the through-hole for sliding movement up and down. Lubricating oil is dripped into the position where the through-hole and the clamping plate are connected. The left and right sides of the front frame corresponding to the clamping plates are fixedly connected with double-axis electric push rods distributed in the upper and lower directions. The two output ends of the double-axis electric push rods are respectively fixedly connected to the clamping plates on the upper and lower sides. The corresponding mounting holes of the clamping plates on both sides are provided with arc-shaped clamping holes for clamping the heating tube body, and the ends of the clamping plates on both sides that are close to each other are respectively fixedly connected with sealing strips.

[0012] As a preferred technical solution of the present invention, the docking component 2 includes a screw rod 2 rotatably connected to the left side of the inner part of the outer frame, and several guide rods 2 fixedly connected to the inner part of the outer frame. The left side of the movable plate 2 is threadedly connected to the screw rod 2, the movable plate 2 is slidingly connected to the several guide rods 2, the front end of the screw rod 2 extends to the outside of the outer frame and is fixedly connected to the output end of the motor 2, and the motor 2 is fixedly connected to the outside of the outer frame.

[0013] As a preferred technical solution of the present invention, the rotational connection assembly includes a belt rotating gear fixedly connected to the rear end center of each package tube, the belt rotating gear is a long gear structure, and a linkage gear is meshed and connected between two adjacent belt rotating gears. The linkage gear is rotatably connected to the movable plate 2 through a rotating rod, and the right side of the rightmost belt rotating gear is also meshed and connected with a driving gear, which is fixedly connected to the output end of motor 3, and motor 3 is fixedly connected to movable plate 2. The rear end of each package tube is commonly provided with a pressurizing component for applying pressure to the interior thereof, and the connection position between the package tube and the movable plate 2 is provided with a buffer component for rotating the package tube.

[0014] As a preferred technical solution of the present invention, the pressurizing component includes a gas branch pipe rotatably connected to the center of the rear end of each package tube, and the common pipeline of each gas branch pipe is connected to the gas connecting pipe. The gas connecting pipe is fixedly connected to the movable plate 2 through a fixed frame. The gas connecting pipe is also provided with an input pipe for pipeline communication with the external boosting equipment.

[0015] As a preferred technical solution of the present invention, the buffer component includes a mounting sleeve rotatably connected to the rear side of the ring wall of the wrapping tube, the mounting sleeve is slidably connected to the movable plate 2, the front side of the mounting sleeve is fixedly connected to the limiting ring 1, the rear side of the mounting sleeve is fixedly connected to the limiting ring 2, and a spring is provided on a section of the mounting sleeve between the movable plate 2 and the limiting ring 1.

[0016] Beneficial effects:

[0017] 1. The sealing mechanism adopted in the present invention can automatically seal the installation ports of multiple heating tubes to avoid air leakage at the installation ports of the heating tubes, and can detect the air pressure inside the heating tubes to observe in real time whether there is any pressure change in the air pressure inside the heating tubes. It is intuitive and convenient to use.

[0018] 2. The wrapping mechanism used in the present invention can wrap the outside of the heating tube and simulate the working environment of the heating tube in real time by means of pressurization. The working process is completed automatically, which saves time and effort.

[0019] 3. The sealing mechanism and the covering mechanism used in the present invention are used in combination to perform airtightness quality inspection on multiple heating tubes at a time. The inspection adopts the external pressurization method, which is more in line with the use conditions of the heating tubes and provides true feedback on the application status of the heating tubes. The overall completion is automated and has a high degree of intelligent use. Multiple groups of heating tubes are inspected simultaneously, which can not only make comparisons and further ensure the accuracy of the inspection, but also significantly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure from the first perspective of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0023] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0024] Figure 4 This invention Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0025] Figure 5 This invention Figure 3 Schematic diagram of the enlarged structure of area B in the middle.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the rear side wall of the front frame of the present invention.

[0027] Figure 7 It is an outline drawing of the heating tube of the present invention.

[0028] In the figure: 1, outer frame; 2, front frame; 3, blocking mechanism; 31, docking assembly 1; 311, screw rod 1; 312, motor 1; 313, guide rod 1; 32, locking tube assembly; 321, dual-axis electric push rod; 322, tightening plate; 323, sealing strip; 33, moving plate 1; 34, sealing cap; 35, pressure gauge; 4, covering mechanism; 41, docking assembly 2; 411, screw rod 2; 412, motor 2; 413, guide rod 2; 4 2. Rotary joint assembly; 421. Buffer component; 4211. Limiting ring 1; 4212. Mounting sleeve; 4213. Limiting ring 2; 4214. Spring; 422. Belt gear; 423. Linking gear; 424. Driving gear; 425. Motor 3; 426. Pressurizing component; 4261. Fixing bracket; 4262. Gas transmission connecting pipe; 4263. Gas transmission branch pipe; 43. Movable plate 2; 44. Tube; 45. Sealing ring; 46. Threaded sleeve. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0030] See Figure 1 A performance testing device for electric water heater accessories includes an outer frame 1, a front frame 2 is fixedly connected to the front end of the outer frame 1, a plurality of mounting holes running through the front and rear are opened on the front frame 2, the mounting holes are used to place the tube body of the heating tube, a sealing mechanism 3 is provided in the front frame 2 for sealing the two mounting ports of the multiple heating tubes, and a covering mechanism 4 is provided between the front frame 2 and the rear side wall of the outer frame 1 for separately sealing and covering the tube bodies of the multiple heating tubes.

[0031] See Figure 1 and Figure 3 The sealing mechanism 3 includes a movable plate 33 movably arranged in the front frame 2. The two mounting ports of the movable plate 33 corresponding to each heating tube are fixedly connected with a sealing cap 34. Among the two sealing caps 34 installed on a single heating tube, one of the sealing caps 34 is installed with a pressure gauge 35. Both sides of the movable plate 33 are provided with a docking assembly 31 for controlling its forward and backward movement. A locking tube assembly 32 for locking the tube body of each heating tube is provided in the rear side wall of the front frame 2.

[0032] During specific operation, the pressure change in the heating tube is sensed by the barometer 35. If the pressure continues to increase, it means that the heating tube is defective and of poor quality. If the pressure remains unchanged, it means that the heating tube is intact and of good quality.

[0033] See Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The covering mechanism 4 includes a second movable plate 43 movably arranged between the front frame 2 and the rear side wall of the outer frame 1. A plurality of covering tubes 44 are distributed on the second movable plate 43 corresponding to the tube body of each heating tube. A threaded sleeve 46 is fixedly connected to each covering tube 44 on the rear side wall of the front frame 2. The threaded sleeve 46 is connected to the front end of the covering tube 44 through a thread. A sealing ring 45 is fixedly connected to the front end of the covering tube 44. A second docking assembly 41 for controlling its forward and backward movement is provided on both sides of the second movable plate 43. A screw connection assembly 42 for controlling its threaded connection with each threaded sleeve 46 is provided on the rear side of each covering tube 44.

[0034] During specific operation, the wrapping tube 44 and the threaded sleeve 46 are connected to form an outer wrapping structure for covering the heating tube. The sealing ring 45 and the threaded structure cooperate to ensure the sealing of the connection between the wrapping tube 44 and the threaded sleeve 46. The inside of the wrapping tube 44 is pressurized. If the tube body of the heating tube has defects, gas will enter the heating tube. If the heating tube has no defects, gas cannot enter the heating tube.

[0035] By cooperating with the sealing mechanism 3 and the covering mechanism 4, the air tightness detection of multiple heating tubes can be completed simultaneously.

[0036] See Figure 1 and Figure 3 The docking assembly 31 includes a screw rod 311 rotatably connected to the left side of the front frame 2, and a guide rod 313 fixedly connected to the right side of the front frame 2. The left side of the movable plate 33 is threadedly connected to the screw rod 311, and the right side of the movable plate 33 is slidingly connected to the guide rod 313. The front end of the screw rod 311 extends to the outside of the front frame 2 and is fixedly connected to the output end of the motor 312. The motor 312 is fixedly connected to the outside of the front frame 2.

[0037] During specific operation, the motor 312 controls the screw rod 311 to rotate, and the screw rod 311 controls the movable plate 33 to move forward and backward along the guide rod 313, and the movable plate 33 brings the sealing caps 34 to seal the installation opening of the heating tube.

[0038] See Figure 1 and Figure 6 The locking tube assembly 32 includes a through-hole that penetrates the rear side wall of the front frame 2 in the vertical direction, and a clamping plate 322 is symmetrically connected to the through-hole in the vertical direction. Lubricating oil is dripped into the position where the through-hole and the clamping plate 322 meet. The left and right sides of the front frame 2 corresponding to the clamping plates 322 are fixedly connected with the vertically distributed double-axis electric push rods 321. The two output ends of the double-axis electric push rods 321 are respectively fixedly connected to the clamping plates 322 on the upper and lower sides. The corresponding mounting holes of the clamping plates 322 on both sides are provided with arc-shaped clamping holes for clamping the heating tube body, and the ends of the clamping plates 322 on both sides that are close to each other are respectively fixedly connected with sealing strips 323.

[0039] During specific operation, the two pairs of tightening plates 322 are controlled to move closer to each other by the dual-axis electric push rod 321, and the arc-shaped bayonet is connected to form a circular hole to lock the heating tube body tightly, and the sealing strip 323 is used to increase the connection sealing to avoid air leakage at the connection position with the heating tube body. The use of lubricating oil can ensure the smooth movement of the tightening plate 322 while ensuring the airtightness of the connection position between the through-hole and the tightening plate 322.

[0040] See Figure 1 、 Figure 2 and Figure 3 The docking assembly 2 41 includes a screw rod 2 411 rotatably connected to the left side of the inner part of the outer frame 1, and a plurality of guide rods 2 413 fixedly connected to the inner part of the outer frame 1. The left side of the movable plate 2 43 is threadedly connected to the screw rod 2 411, and the movable plate 2 43 is slidingly connected to the plurality of guide rods 2 413. The front end of the screw rod 2 411 extends to the outside of the outer frame 1 and is fixedly connected to the output end of the motor 2 412. The motor 2 412 is fixedly connected to the outside of the outer frame 1.

[0041] During specific operation, the motor 2 412 controls the rotation of the screw rod 2 411, and the screw rod 2 411 controls the movable plate 2 43 to move forward and backward along the guide rod 2 413, and the movable plate 2 43 drives each wrapping tube 44 to move toward the front frame 2, and the wrapping tube 44 is docked with the front frame 2 to form a closed environment outside the heating tube. When the movable plate 2 43 carries the wrapping tube 44 away from the front frame 2, there is enough space between the movable plate 2 43 and the front frame 2 to facilitate the locking and installation of the heating tube.

[0042] See Figure 1 、 Figure 2 and Figure 4The rotating assembly 42 includes a belt rotating gear 422 fixedly connected to the rear end center of each package tube 44. The belt rotating gear 422 is a long gear structure. The adjacent belt rotating gears 422 are meshed and connected with a linkage gear 423. The linkage gear 423 is rotatably connected to the movable plate 2 43 through a rotating rod. The right side of the rightmost belt rotating gear 422 is also meshed and connected with a driving gear 424. The driving gear 424 is fixedly connected to the output end of the motor three 425. The motor three 425 is fixedly connected to the movable plate 2 43. The rear end of each package tube 44 is commonly provided with a pressurizing component 426 for applying pressure to the interior thereof. The connection position between the package tube 44 and the movable plate 2 is provided with a buffer component 421 for rotating the package tube 44.

[0043] See Figure 2 and Figure 3 The pressurizing component 426 includes a gas branch pipe 4263 rotatably connected to the rear end center of each package tube 44. The common pipeline of each gas branch pipe 4263 is connected to the gas connecting pipe 4262. The gas connecting pipe 4262 is fixedly connected to the movable plate 2 43 through a fixed frame 4261. The gas connecting pipe 4262 is also provided with an input pipe for pipeline communication with the external boosting equipment.

[0044] See Figure 1 and Figure 4 The buffer component 421 includes a mounting sleeve 4212 rotatably connected to the rear side of the ring wall of the package tube 44, the mounting sleeve 4212 is slidably connected to the movable plate 2 43, the front side of the mounting sleeve 4212 is fixedly connected to the limiting ring 1 4211, and the rear side of the mounting sleeve 4212 is fixedly connected to the limiting ring 2 4213, and a spring 4214 is provided on a section of the mounting sleeve 4212 between the movable plate 2 43 and the limiting ring 1 4211.

[0045] During specific operation, when the bag tube 44 and the front frame 2 are docked, the spring 4214 is compressed, causing the installation sleeve 4212 to move a distance backward with the bag tube 44 on the movable plate 2 43, and the spring 4214 presses the front end of the bag tube 44 against the front frame 2, and the motor 3 425 controls the rotation of the driving gear 424, which drives the rightmost belt rotating gear 422 to rotate, and the linkage gear 423 drives each belt rotating gear 422 to rotate synchronously, so that the bag tube 44 rotates. Under the restoring action of the spring 4214, the threaded sleeve 46 is screwed into the inside of the bag tube 44, and the heating pipe is fully enclosed. The air is transmitted to the gas transmission pipe 4262 through the operation of the booster equipment, and the gas transmission pipe 4262 disperses the air to the inside of each bag tube 44 through the gas transmission branch pipe 4263, so that the inside of the bag tube 44 is pressurized.

[0046] When in use: S1: First move the movable plate 2 43 to the rear side of the outer frame 1, and then install multiple heaters one by one on the rear side wall of the front frame 2. During installation, pass one end of the installation port of the heating tube through the installation hole. After placement is completed, control the two pairs of tightening plates 322 to move closer to each other through the dual-axis electric push rod 321, and use the arc-shaped bayonet to connect the circular hole to tighten and lock the heating tube body, and use the sealing strip 323 to increase the connection sealing.

[0047] S2: Then the motor 1 312 controls the screw rod 1 311 to rotate, and the screw rod 1 311 controls the movable plate 1 33 to move forward and backward along the guide rod 1 313, and the movable plate 1 33 brings the sealing caps 34 to seal the installation opening of the heating tube, and then the motor 2 412 controls the screw rod 2 411 to rotate, and the screw rod 2 411 controls the movable plate 2 43 to move forward and backward along the guide rod 2 413, and the movable plate 2 43 drives the respective wrapping tubes 44 to move toward the front frame 2, and the wrapping tubes 44 are docked with the front frame 2 to form a closed environment outside the heating tube.

[0048] S3: When the bag tube 44 and the front frame 2 are docked, the spring 4214 is compressed, causing the installation sleeve 4212 to move a distance backward with the bag tube 44 on the movable plate 2 43, and the spring 4214 presses the front end of the bag tube 44 against the front frame 2, and then the motor 3 425 controls the rotation of the driving gear 424, and the driving gear 424 drives the rightmost belt rotating gear 422 to rotate, and the linkage gear 423 drives each belt rotating gear 422 to rotate synchronously, so that the bag tube 44 rotates, and under the restoring action of the spring 4214, the threaded sleeve 46 is screwed into the inside of the bag tube 44, and the heating pipe is fully enclosed. Then, the booster equipment is operated to transmit air to the gas supply pipe 4262, and the gas supply pipe 4262 disperses the air to the inside of each bag tube 44 through the gas supply branch pipe 4263, so that the inside of the bag tube 44 is pressurized.

[0049] S4: The pressure change in the heating tube is sensed by the pressure gauge 35. If the pressure continues to increase, it means that the heating tube is defective and the quality is unqualified. If the pressure remains unchanged, it means that the heating tube is intact and the quality is qualified.

[0050] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A performance testing device for electric water heater accessories, comprising an outer frame, a front frame fixedly connected to the front end of the outer frame, a plurality of mounting holes extending from front to back, the mounting holes being used to receive the body of a heating tube, and characterized by: A blocking mechanism is provided in the front frame for sealing the two installation openings of the plurality of heating tubes, and a covering mechanism is provided between the rear side wall of the outer frame and the front frame for sealing and covering the tube bodies of the plurality of heating tubes respectively; The blocking mechanism includes a movable plate movably arranged in the front frame, and two sealing caps are fixedly connected to the two mounting openings of the movable plate corresponding to each heating tube. One of the two sealing caps installed on a single heating tube is equipped with a pressure gauge. A docking assembly for controlling its forward and backward movement is provided on both sides of the movable plate. A locking tube assembly for locking the tube body of each heating tube is provided in the rear side wall of the front frame. The covering mechanism includes a second movable plate movably arranged between the rear side wall of the outer frame and the front frame. A plurality of covering tubes are distributed on the second movable plate corresponding to the tube bodies of the heating tubes. A threaded sleeve is fixedly connected to the rear side wall of the front frame corresponding to each covering tube. The threaded sleeve is connected to the front end of the covering tube through a thread. A sealing ring is fixedly connected to the front end of the covering tube. A docking assembly for controlling its forward and backward movement is provided on both sides of the second movable plate. A screw connection assembly for controlling its threaded connection with each threaded sleeve is provided on the rear side of each covering tube. By cooperating with the sealing mechanism and the covering mechanism, the air tightness test of multiple heating pipes can be completed simultaneously; The locking tube assembly includes a through-hole that penetrates the rear side wall of the front frame in the upper and lower directions, and a clamping plate is symmetrically connected to the through-hole in the upper and lower directions. Lubricating oil is dripped into the position where the through-hole and the clamping plate meet. The left and right sides of the front frame are fixedly connected to the positions corresponding to the clamping plates with double-axis electric push rods distributed in the upper and lower directions. The two output ends of the double-axis electric push rods are respectively fixedly connected to the clamping plates on the upper and lower sides. The corresponding mounting holes of the clamping plates on both sides are provided with arc-shaped bayonet holes for clamping the heating tube body, and the ends of the clamping plates on both sides that are close to each other are respectively fixedly connected with sealing strips. The rotating assembly includes a belt rotating gear fixedly connected to the rear end center of each package tube, the belt rotating gear is a long gear structure, and a linkage gear is meshed between two adjacent belt rotating gears, and the linkage gear is rotatably connected to the movable plate 2 through a rotating rod. The right side of the rightmost belt rotating gear is also meshed with a driving gear, and the driving gear is fixedly connected to the output end of the motor 3, and the motor 3 is fixedly connected to the movable plate 2. The rear end of each package tube is commonly provided with a pressurizing component for applying pressure to the interior thereof, and a buffer component for rotating the package tube is provided at the connection position between the package tube and the movable plate 2; The buffer component includes a mounting sleeve rotatably connected to the rear side of the ring wall of the tube, the mounting sleeve is slidably connected to the movable plate 2, the front side of the mounting sleeve is fixedly connected to the limiting ring 1, the rear side of the mounting sleeve is fixedly connected to the limiting ring 2, and a spring is provided on a section of the mounting sleeve between the movable plate 2 and the limiting ring 1.

2. The electric water heater accessories performance detection device according to claim 1, characterized in that: The docking assembly includes a screw rod 1 that is rotatably connected to the left side of the front frame, and a guide rod 1 that is fixedly connected to the right side of the front frame. The left side of the movable plate is threadedly connected to the screw rod 1, and the right side of the movable plate is slidingly connected to the guide rod 1. The front end of the screw rod 1 extends to the outside of the front frame and is fixedly connected to the output end of the motor 1. The motor 1 is fixedly connected to the outside of the front frame.

3. The electric water heater accessory performance detection device according to claim 1, characterized in that: The docking component 2 includes a screw rod 2 that is rotatably connected to the left side of the outer frame, and several guide rods 2 that are fixedly connected to the inner side of the outer frame. The left side of the movable plate 2 is threadedly connected to the screw rod 2, and the movable plate 2 is slidingly connected to the several guide rods 2. The front end of the screw rod 2 extends to the outside of the outer frame and is fixedly connected to the output end of the motor 2. The motor 2 is fixedly connected to the outside of the outer frame.

4. The electric water heater accessory performance detection device according to claim 3, characterized in that: The pressurizing component includes a gas branch pipe rotatably connected to the center of the rear end of each package tube, and each gas branch pipe is connected to a gas connecting pipe. The gas connecting pipe is fixedly connected to the movable plate 2 through a fixing frame. The gas connecting pipe is also provided with an input pipe for pipeline communication with an external boosting equipment.

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