A cartridge type liquid heater performance test platform

Abstract

The present application relates to the technical fields of heater performance test, in particular to a kind of cylinder type liquid heater performance test platform;Including test table and the two arc plates of symmetric fixed connection on the test table;Two the arc plate between formation two liquid heater joint activities joint gap;Two the arc plate inner side is adapted to the outer wall of liquid heater;The upper surface of the test table is fixedly connected with horizontal cylinder by vertical cylinder;The output shaft of the horizontal cylinder is fixedly connected with the sealing joint with hose;Gap block is slidably connected in the joint gap;Two the arc plate inner side is slidably connected with the placing seat of fixed connection with gap block;The liquid in the liquid storage barrel along with the placing seat lower loading process of liquid heater, lower liquid hole and upper liquid hole enter to the inside of liquid heater, to realize the preloading of liquid in the inside of liquid heater while the lower loading buffer of liquid heater, to improve the test efficiency of subsequent liquid heater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heater performance testing, in particular to a cylindrical liquid heater performance testing platform. BACKGROUND

[0002] A liquid heater is a device that heats liquid to a specific temperature. It plays a key role in various fields and provides a reliable and effective solution for liquid heating. For example, the prior art with publication number CN118129326B and the subject name of a liquid heater, its main working principle is that the liquid enters the container pipe along the liquid inlet pipe, and flows from top to bottom along the straight pipe inside the container pipe, and after the liquid flows to the bottom of the container pipe, it flows from bottom to top along the gap between the outer wall of the straight pipe and the inner wall of the container pipe. The heating wire inside the container pipe heats the liquid, so that the liquid flows out along the liquid outlet pipe after being heated.

[0003] As can be seen, the heating effect of the liquid heater is the main performance of the liquid heater, so after the liquid heater is completed production and assembly, the performance testing platform needs to be used to complete the heating performance test. After the liquid heater is placed on the performance testing platform, the performance testing platform will inject the liquid into the liquid heater to be heated along one of the sealed joints. The heated liquid will flow out along the other sealed joint, and the performance testing platform will detect the temperature of the liquid after the liquid heater is output to determine the heating performance.

[0004] Before the liquid heater performance test, in order to avoid dry burning and other situations, the liquid needs to be filled in the liquid heater before the performance test, which is a slow waiting process for some large volume liquid heaters with large internal space, which undoubtedly causes the performance test efficiency of the liquid heater to be low. SUMMARY

[0005] In order to make up for the shortcomings of the prior art, the present application provides a cylindrical liquid heater performance testing platform. During the loading process of the liquid heater with the placement seat moving down, the liquid in the liquid storage barrel enters the inside of the liquid heater along the liquid inlet hole and the liquid outlet hole. Thus, the liquid heater is preloaded while the liquid heater is moving down and buffering, thereby improving the test efficiency of the subsequent liquid heater.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a kind of cylinder liquid heater performance test platform, including test table and the two arc-shaped plates of symmetric fixed connection on the test table;Two The joint gap for liquid heater joint movement is formed between the two arc-shaped plates;Two The inner side of the arc-shaped plate is adapted to the outer wall of liquid heater;The upper surface of the test table is fixedly connected with horizontal cylinder by vertical cylinder;The sealing joint with hose is fixedly connected with the output shaft of the horizontal cylinder;Gap block is slidably connected in the joint gap;Two The inner side of the arc-shaped plate is slidably connected with the placing seat fixedly connected with gap block;Upper liquid hole is arranged through the center of the upper surface of the placing seat;The inside of the test table is provided with liquid storage barrel;Piston is slidably connected with the inner wall of the liquid storage barrel;The lower surface of the piston is connected with the inner bottom wall of the liquid storage barrel by first spring;The upper surface of the piston is fixedly connected with center rod;The upper end of the center rod is fixedly connected to the lower surface of the placing seat by penetrating the test table;The center rod is movably and sealingly connected with the test table;Upper liquid hole and the lower surface of the piston are communicated by lower liquid hole.

[0007] Preferably, the upper end of the arc-shaped plate is arched;The upper surface of the placing seat is provided with a placing groove concentric with the upper liquid hole;The groove depth of the placing groove increases as it approaches the upper liquid hole;The piston divides the inside of the liquid storage barrel into upper cavity and lower cavity;The upper cavity is communicated with the outside of the liquid storage barrel.

[0008] Preferably, the outer wall of the gap block away from the placing seat is provided with a rotating groove;The handle is rotatably and sealingly connected in the rotating groove;One side of the gap block in contact with the arc-shaped plate is provided with a groove;The groove bottom and the groove wall between the rotating groove are communicated by first liquid hole;The clamping block is slidably and sealingly connected in the groove;The guiding surface is downwardly and obliquely arranged at the end of the clamping block away from the first liquid hole;The arc-shaped plate is provided with a clamping groove at the corresponding position of the groove on the gap block;The clamping block can extend into the clamping groove;The handle is provided with a temporary storage groove at the end away from the gap block;The temporary storage block is slidably and sealingly connected in the temporary storage groove;The temporary storage block and the groove bottom between the temporary storage groove are connected by tension spring;The outer wall of the handle in the rotating groove and the groove bottom between the temporary storage groove are communicated by second liquid hole;The second liquid hole is communicated with or offset from the first liquid hole after the handle is rotated;The temporary storage groove is filled with liquid medium.

[0009] Preferably, the arc-shaped inner wall of the rotating groove is provided with an arc-shaped positioning groove;The positioning block is slidably connected in the positioning groove;The positioning block is fixedly connected with the outer wall of the handle.

[0010] Preferably, the upper liquid hole inner wall is provided with an annular groove; the annular groove is fixedly connected with an annular capsule; the placing seat is internally provided with a driving groove; the driving groove is slidingly and sealingly connected with a driving plate along the radial direction of the placing seat; the driving plate is connected with the driving groove wall through a second spring on the side close to the upper liquid hole; the driving groove wall close to the upper liquid hole is communicated with the annular groove wall through a third liquid hole; the inner wall of the arc-shaped plate is vertically provided with a vertical groove; the groove bottom of the upper end of the vertical groove is provided with a gradient groove with decreasing groove depth from top to bottom; the end of the driving plate away from the second spring is fixedly connected with a driving block; the driving block extends into the vertical groove through the placing seat on the end away from the second spring; and the driving block is movably connected with the placing seat.

[0011] Preferably, the cross section shape of the annular capsule is inverted Y shape, and the annular capsule is a rotary body; the annular capsule is made of elastic material, such as rubber.

[0012] Preferably, the test table is internally provided with a liquid cavity; the upper end of the liquid storage barrel is fixedly connected with the upper inner wall of the liquid cavity through an upper block; the liquid storage barrel is composed of a sleeve-shaped barrel body and a disc-shaped bottom disc; the inner and outer walls of the barrel body are provided with a first water-permeable groove along the radial direction; the lower end surface of the barrel body is provided with an annular shielding groove penetrating upward; the shielding groove penetrates through the first water-permeable groove; the shielding sleeve is slidingly and sealingly connected in the shielding groove; the inner and outer walls of the shielding sleeve are provided with a second water-permeable groove penetrating along the radial direction; the lower end of the shielding sleeve is fixedly connected with the upper surface of the bottom disc; the bottom disc is connected with the lower inner wall of the liquid cavity through a third spring at the concave position of the lower surface; the piston is movably and sealingly connected with the inner wall of the barrel body; and the lower end of the first spring is fixedly connected with the upper surface of the bottom disc.

[0013] Preferably, the liquid level in the liquid cavity is higher than the upper end of the liquid storage barrel in the vertical direction.

[0014] Preferably, the first water-permeable groove and the second water-permeable groove are arranged in the same direction; the outer wall of the test table is provided with a first connector and a second connector communicated with the liquid cavity; and the liquid inlet direction of the first connector is arranged towards the first water-permeable groove.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. During the loading process of the liquid heater with the lowering of the placing seat, the liquid in the liquid storage barrel enters into the interior of the liquid heater along the lower liquid hole and the upper liquid hole, so as to realize the preloading of the liquid in the interior of the liquid heater while buffering the lowering of the liquid heater, thereby improving the test efficiency of the subsequent liquid heater.

[0017] 2. The placing seat can be locked after being in the upper limit position, so that the liquid heater is stably positioned at the placing seat position during loading and unloading, thereby facilitating the operation and use of the tester during the test process.

[0018] 3. The medium in the driving groove enters the annular groove along the third liquid hole, so that the annular bag in the annular groove bulges inward and abuts against the outer wall of the exhaust joint, the sealing of the inner wall of the upper liquid hole and the outer wall of the exhaust joint is realized, so that the upper liquid hole and the exhaust joint do not leak during the liquid heater test, so that the liquid heater test is more stable, in addition, due to the reverse Y-shaped rotary section of the annular bag, so that the outer wall of the exhaust joint of the liquid heater is difficult to pull out when the annular bag abuts tightly, so that the liquid heater is placed more stably on the placing seat, and the test stability of the liquid heater is further improved.

[0019] 4. In the case that the placing seat is moved to the limit position, the lower cavity is exposed and communicates with the liquid in the liquid cavity, the flowing liquid entering from the first joint will pass through the first water-permeable groove and the second water-permeable groove, and finally flow out along the second joint, so that the used liquid in the lower cavity is replaced, so that the liquid in the lower cavity always keeps low temperature, avoids high-temperature liquid from entering the next liquid heater to cause detection error, and the test accuracy of the liquid heater is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in combination with the drawings and embodiments.

[0021] Figure 1 is a perspective view of the application;

[0022] Figure 2 is a sectional view of Figure 1 ;

[0023] Figure 3 is an enlarged view of A in Figure 2 ;

[0024] Figure 4 is a perspective view of the liquid storage barrel and the placing seat in the application;

[0025] Figure 5 is a position view of the positioning groove in the application;

[0026] Figure 6 is a sectional view of the placing seat and the gap block in the application;

[0027] Figure 7 is an enlarged view of B in Figure 6 ;

[0028] In the diagram: Test stand 1, vertical cylinder 11, horizontal cylinder 12, sealing joint 13, liquid chamber 14, first joint 15, second joint 16, arc plate 2, joint gap 21, slot 22, vertical groove 23, gradient groove 24, gap block 3, rotating groove 31, groove 32, first liquid hole 33, locking block 34, guide surface 341, positioning groove 35, positioning block 36, placement seat 4, liquid inlet hole 41, placement groove 42, annular groove 43, annular bladder 4 4. Drive groove 45, drive plate 46, second spring 47, third liquid hole 48, drive block 49, storage tank 5, piston 51, first spring 52, center rod 53, lower liquid hole 54, upper cavity 55, lower cavity 56, upper block 57, handle 6, temporary storage groove 61, temporary storage block 62, tension spring 63, second liquid hole 64, tank body 7, first water permeable groove 71, shielding groove 72, chassis 8, third spring 81, shielding sleeve 9, second water permeable groove 91. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1 to 7 As shown, the present invention includes the following embodiments:

[0031] Example 1: A performance testing platform for a cylindrical liquid heater includes a test bench 1 and two arc-shaped plates 2 symmetrically fixedly connected on the test bench 1; two joint gaps 21 are formed between the two arc-shaped plates 2 for the liquid heater connector to move; the inner sides of the two arc-shaped plates 2 are adapted to the outer wall of the liquid heater; a horizontal cylinder 12 is fixedly connected to the upper surface of the test bench 1 via a vertical cylinder 11; a sealing connector 13 with a flexible hose is fixedly connected to the output shaft of the horizontal cylinder 12; a gap block 3 is slidably connected up and down within the joint gap 21; and two arc-shaped plates 2 are slidably connected up and down within the joint gaps 21. A placement seat 4 is fixedly connected to the gap block 3; a liquid inlet hole 41 is provided through the center of the upper surface of the placement seat 4; a liquid storage tank 5 is provided inside the test platform 1; a piston 51 is slidably and sealed to the inner wall of the liquid storage tank 5; the lower surface of the piston 51 is connected to the bottom wall of the liquid storage tank 5 by a first spring 52; a central rod 53 is fixedly connected to the upper surface of the piston 51; the upper end of the central rod 53 passes through the test platform 1 and is fixedly connected to the lower surface of the placement seat 4; the central rod 53 is movably and sealed to the test platform 1; the liquid inlet hole 41 and the lower surface of the piston 51 are connected by a liquid outlet hole 54.

[0032] The arc-shaped plate 2 is arranged in an arch shape at the upper end; the upper surface of the placing seat 4 is provided with a placing groove 42 which is concentric with the upper liquid hole 41 and communicates with the upper liquid hole 41; the depth of the placing groove 42 increases as it approaches the upper liquid hole 41; the piston 51 separates the liquid storage barrel 5 into an upper cavity 55 and a lower cavity 56; the upper cavity 55 communicates with the outside of the liquid storage barrel 5.

[0033] After the liquid heater is completed and assembled, the liquid heater is vertically lifted, and the drainage joint at the lower end of the liquid heater is placed into the placing groove 42. The depth of the placing groove 42 increases as it approaches the upper liquid hole 41, so that after the drainage joint falls into the placing groove 42, the drainage joint slides into the upper liquid hole 41 under the guidance of the inclined groove bottom of the placing groove 42. After the drainage joint is inserted into the upper liquid hole 41, it continues to move downward until the bottom of the liquid heater enters the placing groove 42, thereby completing the placement of the liquid heater. Then, the liquid heater is loosened, and the liquid heater drives the placing seat 4 to move downward synchronously under the action of its own gravity. The placing seat 4 drives the center rod 53 and the piston 51 to move downward during the downward movement of the placing seat 4. The piston 51 overcomes the elastic force of the first spring 52 during the downward movement of the piston 51. The space in the upper cavity 55 increases and the space in the lower cavity 56 decreases during the downward movement of the piston 51 in the liquid storage barrel 5. The liquid in the lower cavity 56 enters the upper liquid hole 41 through the lower liquid hole 54 after the pressure of the liquid in the lower cavity 56 increases, and finally enters the inside of the liquid heater through the upper liquid hole 41.

[0034] Due to the limited speed of the liquid in the lower cavity 56 entering the inside of the liquid heater, the placing seat 4 and the liquid heater have liquid damping during the downward movement, thereby achieving the buffering of the downward movement of the liquid heater. The liquid inlet joint and the liquid outlet joint on the liquid heater enter the joint gap 21 under the guidance of the arched surface of the upper end of the arc-shaped plate 2. The width of the joint gap 21 is adapted to the outer diameter of the liquid inlet joint, so that the liquid inlet joint and the liquid outlet joint can be smoothly guided and enter the joint gap 21 and move along the joint gap 21. The placing seat 4 falls on the upper surface of the test table 1 after moving downward on the inner side of the arc-shaped plate 2, so that the piston 51 and the center rod 53 stop moving downward, and the liquid in the lower cavity 56 also stops entering the liquid heater, thereby completing the pre-filling of the liquid in the liquid heater.

[0035] After the liquid heater is connected to the power supply, the heating wire in the liquid heater starts to work. When the placement seat 4 moves to the limit position, the liquid inlet connector and the liquid outlet connector in the liquid heater are aligned with the corresponding sealing connectors 13. Then, the horizontal cylinder 12 is elongated to drive the sealing connectors 13 to move. The two sealing connectors 13 approach each other, and the two sealing connectors 13 abut against the liquid inlet connector and the liquid outlet connector on the liquid heater. One of the sealing connectors 13 injects liquid along the liquid inlet connector. The liquid flows in the liquid heater and is heated by the heating wire. The heated liquid flows out along the liquid outlet connector and the other sealing connector 13. According to the temperature of the liquid flowing out of the liquid heater, the heating performance of the liquid heater is determined.

[0036] After the performance test of the liquid heater is completed, the power supply of the liquid heater is disconnected. The horizontal cylinder 12 is controlled to shorten, which drives the two sealing connectors 13 to move away from each other. The sealing connectors 13 are separated from the liquid inlet connector and the liquid outlet connector. Then, the placement seat 4 is controlled to move up. During the movement of the placement seat 4 upwards, the liquid heater is lifted upwards. During the movement of the placement seat 4 upwards, the center rod 53 and the piston 51 are lifted upwards. During the movement of the piston 51 upwards, the space in the lower cavity 56 becomes larger to form a negative pressure. Thus, the liquid in the liquid heater enters the lower cavity 56 through the drainage connector, the liquid inlet hole 41, and the liquid outlet hole 54. In this way, the liquid in the liquid heater is quickly poured out after the performance test is completed. A collection shell (not shown in the figure) can be arranged around the test bench 1 to collect the overflow liquid. When the placement seat 4 moves to the limit position, the liquid heater that has completed the test can be lifted and removed from the placement seat 4. During the movement of the placement seat 4 downwards to load the liquid heater in the embodiment, the liquid in the liquid storage barrel 5 enters the liquid heater through the liquid outlet hole 54 and the liquid inlet hole 41. Thus, the liquid in the liquid heater is preloaded while the liquid heater is moved downwards to load and buffer. In this way, the test efficiency of the subsequent liquid heater is improved.

[0037] The gap block 3 is provided with a rotating groove 31 away from the outer wall of the placement seat 4; the rotating groove 31 is sealingly connected with a handle 6 rotating therein; one side of the gap block 3 in contact with the arc-shaped plate 2 is provided with a recess 32; the recess 32 is in communication with the groove wall of the rotating groove 31 through a first liquid hole 33; the recess 32 is sealingly connected with a clamping block 34 sliding therein; the clamping block 34 is provided with a guide surface 341 downwardly and obliquely away from one end of the first liquid hole 33; the arc-shaped plate 2 is provided with a clamping groove 22 at a position corresponding to the recess 32 on the gap block 3; the clamping block 34 can extend into the clamping groove 22; the handle 6 is provided with a temporary storage groove 61 away from one end of the gap block 3; the temporary storage groove 61 is sealingly connected with a temporary storage block 62 sliding therein; the temporary storage block 62 is connected with the groove bottom of the temporary storage groove 61 through a tension spring 63; the outer wall of the handle 6 located in the rotating groove 31 is in communication with the groove bottom of the temporary storage groove 61 through a second liquid hole 64; the second liquid hole 64 is in communication with or offset from the first liquid hole 33 after the handle 6 is rotated; the temporary storage groove 61 is filled with a liquid medium.

[0038] The rotating groove 31 is provided with an arc-shaped positioning groove 35 on the inner arc-shaped wall; the positioning groove 35 is slidingly connected with a positioning block 36.

[0039] The placement seat 4 in the initial state is located at the upper limit position on the inner side of the arc-shaped plate 2; after the liquid heater is placed on the placement seat 4, the handle 6 is rotated; the handle 6 drives the positioning block 36 to move in the positioning groove 35 during the rotation process, so that one end of the positioning block 36 moves to the other end in the positioning groove 35, the second liquid hole 64 on the handle 6 is in communication with the first liquid hole 33, the handle 6 is loosened, the liquid heater transmits the gravity to the placement seat 4, the placement seat 4 has a large downward force and transmits it to the clamping block 34, so that the gap block 3 and the clamping block 34 move downward, the guide surface 341 on the clamping block 34 is pressed in the slot opening of the clamping groove 22 and drives the clamping block 34 to retract into the recess 32, the liquid medium in the recess 32 enters the temporary storage groove 61 along the first liquid hole 33 and the second liquid hole 64, the liquid amount in the temporary storage groove 61 increases, so that the temporary storage block 62 overcomes the tension of the tension spring 63 and moves away from the groove bottom of the temporary storage groove 61, after the placement seat 4 moves to the limit position, the next step of preparation and test of the liquid heater is carried out.

[0040] After the test is completed, the handle 6 is moved up, and the handle 6 is moved up, which drives the placement seat 4 to move up, and the placement seat 4 is moved up, which drives the liquid heater to move up synchronously, and the placement seat 4 is moved up, which drives the gap block 3 to move up in the joint gap 21, and the gap block 3 is moved up to the limit position with the placement seat 4, the recess 32 on the gap block 3 is aligned with the clamping groove 22 again, the tension spring 63 pulls the temporary storage block 62 to extrude the liquid in the temporary storage groove 61, the liquid in the temporary storage groove 61 enters the recess 32 along the second liquid hole 64 and the first liquid hole 33, and the liquid in the recess 32 drives the clamping block 34 to be clamped into the clamping groove 22, and then the handle 6 is reversely rotated, the handle 6 is rotated, which drives the positioning block 36 to move in the positioning groove 35, so that the positioning block 36 moves from the other end to one end of the positioning groove 35, so that the second liquid hole 64 is misaligned with the first liquid hole 33, so that the liquid in the recess 32 is isolated, so that the placement seat 4 is subjected to the gravity of the liquid heater during the process of loosening the handle 6 and taking off the liquid heater on the placement seat 4, the clamping block 34 transmits the force to the liquid in the recess 32, but the liquid in the recess 32 cannot be discharged, so the clamping block 34 cannot be retracted into the recess 32, the clamping block 34 is clamped in the clamping groove 22, and the gap block 3 is locked, so that the position of the placement seat 4 is locked, so that the tester can take off the liquid heater from the placement seat 4.

[0041] The embodiment can be locked after the placement seat 4 is moved up to the limit position, so that the liquid heater is stably positioned on the placement seat 4 during loading and unloading, thereby facilitating the operation and use of the tester during testing.

[0042] In the embodiment, the inner wall of the upper liquid hole 41 is provided with an annular groove 43, the annular groove 43 is fixedly connected with an annular capsule 44, the inside of the placement seat 4 is provided with a driving groove 45, the driving groove 45 is sealingly connected with a driving plate 46 which slides along the radial direction of the placement seat 4, the driving plate 46 is connected with the groove wall of the driving groove 45 through a second spring 47 on the side close to the upper liquid hole 41, the groove wall of the driving groove 45 close to the upper liquid hole 41 is in communication with the groove wall of the annular groove 43 through a third liquid hole 48, the inner wall of the arc-shaped plate 2 is vertically provided with a vertical groove 23, the groove bottom of the upper end of the vertical groove 23 is provided with a gradient groove 24 with decreasing groove depth from top to bottom, and the gradient groove 24 is part of the vertical groove 23, the end of the driving plate 46 away from the second spring 47 is fixedly connected with a driving block 49, the driving block 49 extends into the vertical groove 23 through the placement seat 4 at the end away from the second spring 47, and the driving block 49 is movably connected with the placement seat 4.

[0043] The cross-sectional shape of the annular capsule 44 is inverted Y-shaped and is a rotary body, and the annular capsule 44 is made of elastic material, such as rubber.

[0044] The driving block 49 in the initial state is located in the gradual change groove 24 at the upper end of the vertical groove 23, the depth of the gradual change groove 24 decreases from top to bottom, after the liquid heater is inserted into the upper liquid hole 41 through the drainage joint at the lower end, the drainage joint enters the inside of the annular groove 43, then the liquid heater drives the placement seat 4 to move downward, the placement seat 4 drives the driving block 49 to move in the gradual change groove 24 from top to bottom during the downward movement, the bottom of the gradual change groove 24 extrudes the driving block 49, so that the driving block 49 moves close to the upper liquid hole 41, the driving block 49 drives the driving plate 46 to move in the driving groove 45 and extrudes the liquid medium or gas medium in the driving groove 45 against the second spring 47, the medium in the driving groove 45 enters the annular groove 43 through the third liquid hole 48, so that the annular bag 44 in the annular groove 43 bulges inward and abuts against the outer wall of the drainage joint, the sealing of the inner wall of the upper liquid hole 41 and the outer wall of the drainage joint is realized, so that the upper liquid hole 41 and the drainage joint do not leak during the test of the liquid heater, so that the test of the liquid heater is more stable.

[0045] In addition, the annular bag 44 has a reverse Y-shaped rotary section, so that the resistance of the outer wall of the drainage joint of the liquid heater increases when the annular bag 44 abuts tightly, so that the liquid heater is more stable on the placement seat 4, and the stability of the test of the liquid heater is further improved; as the placement seat 4 moves downward, the driving block 49 enters the lower end of the vertical groove 23, after the test is completed, the placement seat 4 moves upward and drives the driving block 49 to return to the gradual change groove 24, the second spring 47 drives the driving plate 46 to move away from the upper liquid hole 41 in the driving groove 45, the medium in the annular groove 43 enters the driving groove 45 through the third liquid hole 48, the annular bag 44 shrinks and retreats into the annular groove 43, the clamping and sealing of the inner wall of the upper liquid hole 41 and the drainage joint are released, so that the drainage joint can be removed with the liquid heater.

[0046] In the embodiment 4, the test bench 1 is internally provided with a liquid cavity 14; the upper port of the liquid storage barrel 5 is fixedly connected to the upper inner wall of the liquid cavity 14 through an upper block 57; the liquid storage barrel 5 is composed of a sleeve-shaped barrel body 7 and a disc-shaped bottom disc 8; the first water-permeable groove 71 is arranged through the radial direction of the inner and outer walls of the barrel body 7; the annular shielding groove 72 is arranged through the lower end surface of the barrel body 7 in a penetrating manner; the shielding sleeve 9 is movably and sealingly connected in the shielding groove 72; the second water-permeable groove 91 is arranged through the radial direction of the inner and outer walls of the shielding sleeve 9; the lower end of the shielding sleeve 9 is fixedly connected to the upper surface of the bottom disc 8; the third spring 81 is connected between the recessed position of the lower surface of the bottom disc 8 and the lower inner wall of the liquid cavity 14; the piston 51 is movably and sealingly connected to the inner wall of the barrel body 7; the lower end of the first spring 52 is fixedly connected to the upper surface of the bottom disc 8, and the liquid level in the liquid cavity 14 is higher than the upper port of the liquid storage barrel 5 in the vertical direction.

[0047] The first water-permeable groove 71 and the second water-permeable groove 91 are arranged in the same direction; the outer wall of the test table 1 is provided with a first joint 15 and a second joint 16 which are in communication with the liquid cavity 14; the liquid inlet direction of the first joint 15 is arranged towards the first water-permeable groove 71.

[0048] Before the liquid heater is placed on the placing seat 4, the placing seat 4 is located at the upper limit position, the bottom disc 8 is located at the upper limit position under the action of the third spring 81, the first water-permeable groove 71 and the second water-permeable groove 91 are in communication and alignment; after the liquid heater is placed on the upper surface of the placing seat 4, the placing seat 4 will move downward, the center rod 53 will move downward during the downward movement of the placing seat 4, the piston 51 will move downward during the downward movement of the center rod 53, the first spring 52 will be compressed during the downward movement of the piston 51, the first spring 52 will transmit the elastic force to the bottom disc 8, so that the bottom disc 8 transmits the elastic force of the first spring 52 to the third spring 81, so that the third spring 81 is compressed and squeezed, the bottom disc 8 will move downward and abut against the lower inner wall of the liquid cavity 14, the shielding sleeve 9 will move downward during the downward movement of the bottom disc 8, the second water-permeable groove 91 will be misaligned with the first water-permeable groove 71 during the downward movement of the shielding sleeve 9, so that the lower cavity 56 in the liquid storage barrel 5 is sealed; as the placing seat 4 continues to move downward, the placing seat 4 will continue to move downward, the piston 51 will continue to move downward, the lower cavity 56 will be squeezed during the downward movement of the piston 51, the liquid in the lower cavity 56 will flow into the liquid heater through the lower liquid hole 54 and the upper liquid hole 41, the upper cavity 55 will suck in liquid through the gap between the adjacent upper blocks 57 during the downward movement of the piston 51, so that the temperature of the liquid entering the liquid heater is further reduced.

[0049] As the piston 51 stops moving downward, the liquid heater will perform the next operation and test, after the test is completed, the placing seat 4 and the piston 51 move upward, the piston 51 moves away from the bottom disc 8 during the upward movement of the piston 51, the space in the lower cavity 56 becomes larger and forms a negative pressure, the liquid in the liquid heater flows back to the lower cavity 56, as the placing seat 4 continues to move upward, the elastic force of the first spring 52 will gradually be smaller than the elastic force of the third spring 81, the third spring 81 will drive the bottom disc 8 to move upward, the bottom disc 8 will drive the shielding sleeve 9 to move in the shielding groove 72 during the upward movement of the bottom disc 8, the shielding sleeve 9 will drive the second water-permeable groove 91 to coincide with the first water-permeable groove 71 again, so that the lower cavity 56 is exposed and in communication with the liquid in the liquid cavity 14, the flowing liquid entering from the first joint 15 will pass through the first water-permeable groove 71 and the second water-permeable groove 91, and finally flow out through the second joint 16, so as to replace the used liquid in the lower cavity 56, so that the liquid in the lower cavity 56 always maintains a low temperature, avoids high-temperature liquid from entering the next liquid heater to cause detection error, and improves the test accuracy of the liquid heater.

[0050] In the description of this invention, it should be noted that the terms "center," "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 appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to 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, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A kind of cylinder type liquid heater performance test platform, including test table and two arc-shaped plates on the test table;Characterized in that: Two said arc-shaped plates form two joint gaps for liquid heater joint movement; the inner sides of the two said arc-shaped plates are adapted to the outer wall of the liquid heater; the upper surface of the test table is fixedly connected with a horizontal air cylinder through a vertical air cylinder; the output shaft of the horizontal air cylinder is fixedly connected with a sealing joint with a hose, and the two sealing joints abut against the liquid inlet joint and the liquid outlet joint on the liquid heater; a gap block is slidably connected in the joint gap; a placing seat fixedly connected with the gap block is slidably connected on the inner sides of the two said arc-shaped plates; a liquid inlet hole is formed in the center of the upper surface of the placing seat, and the drainage joint on the lower end of the liquid heater is inserted into the liquid inlet hole; a liquid storage barrel is arranged in the test table; a piston is elastically and sealingly connected to the inner wall of the liquid storage barrel; a center rod is fixedly connected to the upper surface of the piston; the upper end of the center rod penetrates through the test table and is fixedly connected to the lower surface of the placing seat; the liquid inlet hole and the lower surface of the piston are communicated through a liquid outlet hole.

2. The cartridge liquid heater performance test platform of claim 1, wherein: The upper surface of the placing seat is provided with a placing groove; the groove depth of the placing groove increases as it approaches the liquid inlet hole; the piston divides the liquid storage barrel into an upper cavity and a lower cavity; the upper cavity is communicated with the outside of the liquid storage barrel.

3. The performance test platform for a cartridge liquid heater of claim 1, wherein: The outer wall of the gap block away from the placing seat is provided with a rotating groove; a handle is rotatably and sealingly connected in the rotating groove; a recess is arranged on the side of the gap block in contact with the arc-shaped plate; the recess bottom and the rotating groove wall are communicated through a first liquid hole; a clamping block is slidably and sealingly connected in the recess; a guide surface is arranged on the lower end of the clamping block away from the first liquid hole; a clamping groove is arranged on the arc-shaped plate at a position corresponding to the recess on the gap block; the clamping block can extend into the clamping groove; a temporary storage groove is arranged on the outer wall of the handle in the rotating groove and the temporary storage groove bottom; a tension spring is connected between the temporary storage block and the temporary storage groove bottom; the handle is communicated with the temporary storage groove bottom through a second liquid hole.

4. The cartridge liquid heater performance test platform of claim 3, wherein: An arc-shaped positioning groove is arranged on the arc-shaped inner wall of the rotating groove; a positioning block is slidably connected in the positioning groove; the positioning block is fixedly connected with the outer wall of the handle.

5. The cartridge liquid heater performance test platform of claim 1, wherein: An annular groove is arranged on the inner wall of the liquid inlet hole; an annular capsule is fixedly connected in the annular groove; a driving groove is arranged in the placing seat; a driving plate is elastically and sealingly connected in the driving groove along the radial direction of the placing seat; the groove wall of the driving groove close to the liquid inlet hole is communicated with the annular groove wall through a third liquid hole; a vertical groove is vertically arranged on the inner wall of the arc-shaped plate; a gradually changing groove with decreasing groove depth from top to bottom is arranged on the upper end groove bottom of the vertical groove; a driving block is fixedly connected to the end of the driving plate away from the second spring; the driving block extends into the vertical groove through the placing seat from the end away from the second spring.

6. The cartridge liquid heater performance test platform of claim 5, wherein: The annular capsule has a reverse Y-shaped rotary cross-section.

7. The cartridge liquid heater performance test platform of claim 2, wherein: The test bench is internally provided with a liquid cavity; the upper port of the liquid storage barrel is fixedly connected to the upper inner wall of the liquid cavity through an upper block; the liquid storage barrel is composed of a barrel body in a sleeve shape and a bottom disc in a disc shape; the inner and outer walls of the barrel body are provided with first water-permeable grooves along the radial direction; a shielding sleeve is slidingly and sealingly connected to the barrel body; the inner and outer walls of the shielding sleeve are provided with second water-permeable grooves along the radial direction; the lower end of the shielding sleeve is fixedly connected to the upper surface of the bottom disc; and the lower surface of the bottom disc is elastically connected to the lower inner wall of the liquid cavity.

8. The cartridge liquid heater performance test platform of claim 7, wherein: The liquid level in the liquid cavity is higher than the upper port of the liquid storage barrel in the vertical direction.

9. The cartridge liquid heater performance test platform of claim 8, wherein: The first water-permeable grooves and the second water-permeable grooves are arranged in the same direction; the outer wall of the test bench is provided with a first connector and a second connector which are in communication with the liquid cavity; and the liquid inlet direction of the first connector is arranged towards the first water-permeable grooves.

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