Hot water bag pressure detection device and detection method

Abstract

The present invention discloses a hot water bag pressure resistance testing device and a testing method thereof, relating to the technical field of testing devices for hot water bag production, in order to solve the problem that the pressure resistance test of hot water bags on the market is mostly carried out on the hot water bags by performing pressure resistance tests on the hot water bags through flat plates, which does not conform to the daily squeezing of the hot water bags and leads to inaccurate testing results, a support frame is fixedly arranged above the testing platform, an electric telescopic cylinder is symmetrically arranged below the middle position of the support frame, a pressure-resistant support seat is arranged below the electric telescopic cylinder, a pressing seat is movably arranged below the pressure-resistant support seat, and the pressing seat is divided into three different structures: a first pressing seat, a second pressing seat and a third pressing seat, a pressing seat protrusion is arranged at the middle position of the upper ends of the first pressing seat, the second pressing seat and the third pressing seat, and four limit block locking grooves are relatively symmetrically arranged on both sides of the upper ends of the first pressing seat, the second pressing seat and the third pressing seat.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices for hot water bag production, in particular to a hot water bag pressure resistance detection device and a detection method thereof. Background Art

[0002] A hot water bottle is an empty bag made of rubber, PVC resin, or rubber. It is usually square in shape, with a hot water inlet and outlet at one end, sealed with a stopper, usually a screw-type stopper. It is used by filling it with hot water to provide warmth. With the advancement of technology, a new type of hot water bottle has emerged on the market: the electric hot water bottle. These water-storage electric hot water bottles are filled with liquid and contain a heater. When plugged into a power source, they heat the liquid in the bag, thus providing warmth. Since the water in hot water bottles is generally relatively hot, they need to have a certain level of pressure resistance, and are therefore subject to quality inspection after production.

[0003] The Chinese patent publication number is CN111420895A, and the authorization announcement date is July 17, 2020. A hot water bag pressure and heat resistance testing device includes a working box and a pressure detection chamber arranged in the working box. A first rack sliding chamber is fixedly provided on the left wall of the pressure detection chamber, and the sliding chamber is provided with a first rack that can slide back and forth. A pressurizing motor is fixed in the pressure detection chamber, and the pressurizing chamber motor gear is fixedly installed on the motor shaft of the pressurizing motor. The pressurizing chamber motor gear is meshed with the first rack, and a pressurizing plug is fixedly provided at the front end of the first rack. The present invention can first test the pressure resistance of the hot water bag. If it passes the test, the heat resistance performance will be tested. If it fails, it will be directly eliminated and become waste. It can only become a qualified product if it is qualified in the pressure resistance and heat resistance performance tests, which improves the efficiency of the hot water bag testing, solves the current problem that the hot water bag is tested separately or manually for pressure resistance and heat resistance, and errors may occur, thereby improving the production efficiency of the hot water bag.

[0004] The above-mentioned existing technical solutions have the following defects: currently, the pressure resistance test of hot water bottles on the market is mostly performed on the hot water bottles through a flat plate, which does not conform to the daily squeezing of the hot water bottles, resulting in inaccurate test results. Therefore, we propose a hot water bag pressure resistance detection device and a detection method thereof to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a hot water bag pressure resistance detection device and a detection method thereof, so as to solve the problem raised in the above background technology that the pressure resistance test of hot water bags on the market is mostly performed by using a flat plate to test the hot water bags, which does not conform to the daily squeezing of the hot water bags, resulting in inaccurate test results.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a hot water bag pressure testing device, comprising a testing platform, a support frame is fixedly provided above the testing platform, an electric telescopic cylinder is symmetrically provided below the middle position of the support frame, a pressure-resistant support seat is provided below the electric telescopic cylinder, a pressing seat is movably provided below the pressure-resistant support seat, and the pressing seat is divided into three different structures: a first pressing seat, a second pressing seat and a third pressing seat, a pressing seat protrusion is provided at the middle position of the upper ends of the first pressing seat, the second pressing seat and the third pressing seat, four limit block locking grooves are relatively symmetrically provided on both sides of the upper ends of the first pressing seat, the second pressing seat and the third pressing seat, a limit block slide groove is provided inside the two sides of the lower end of the pressure-resistant support seat, a limit block is provided inside the limit block slide groove, and the limit block and the limit block locking groove are slidably arranged, and a testing frame is fixedly provided at the middle position above the testing platform.

[0007] Preferably, a water collecting mechanism is provided inside the detection frame, a pressure-resistant seat is fixedly provided above the water collecting mechanism, a water collecting trough is provided at the middle position of the water collecting mechanism, a water outlet pipe is sealedly connected below the water collecting trough, the water outlet pipe is an L-shaped pipe, and the lower end of the water outlet pipe extends to the outside of the detection platform, limiting rods are respectively provided at the front and rear ends of both sides of the detection frame, and limiting rod seats are respectively provided at the four corners of the pressure-resistant support seat, and the limiting rod seats are slidably connected to the limiting rod.

[0008] Preferably, a filter plate is movably provided inside the upper end of the water collecting trough, a fixed frame is provided at the outer end of the water collecting mechanism, a first water diversion block is provided on the inner side of the fixed frame, a first water diversion block is provided on one side of the first water diversion block, one side of the first water diversion block is fitted with the inner side of the fixed frame, the other two sides of the first water diversion block are respectively fitted with the adjacent second water diversion block, the other side of the second water diversion block is fitted with the outer edge of the filter plate, and the first water diversion block and the second water diversion block are inclined downward near one end of the filter plate.

[0009] Preferably, a pressing seat convex block groove is provided at the center position of the lower end of the pressure-resistant support seat, and the pressing seat convex block groove is provided correspondingly to the pressing seat convex block.

[0010] Preferably, the limit block locking groove is an L-shaped groove, the limit block and the limit block sliding groove are slidingly arranged, the vertical width of the upper end of the limit block locking groove is greater than the width of the limit block, and the horizontal height of the lower end of the limit block locking groove is greater than the height of the lower end of the limit block.

[0011] A magnet block is provided at a middle position of the limit block and close to one side of an adjacent limit block, and the limit block is a U-shaped structure.

[0012] Preferably, the upper end of the first pressing seat is a planar structure.

[0013] Preferably, a pressing groove is provided at a middle position of the upper end of the second pressing seat, and the pressing groove corresponds to the shape of the hot water bag.

[0014] Preferably, a pressing block is provided at a middle position of the upper end of the third pressing seat, and the pressing block is in the shape of a quadrangular pyramid, and the third pressing seat and the pressing block are an integral structure.

[0015] A method for detecting a hot water bag pressure resistance detection device comprises the following steps:

[0016] Step 1: During the test, place the hot water bag filled with hot water on top of the pressure-resistant seat inside the test frame, install the first pressing seat under the pressure-resistant support seat, align the limit block with the upper end of the limit block locking groove, place the limit block inside the limit block locking groove, and then let the limit block slide along the limit block slide groove. The two limit blocks on the same side are attracted to each other by the internal magnets, locking the position of the magnet block, thereby locking the position of the first pressing seat;

[0017] Step 2: The pressure-resistant support seat and the pressing seat are driven downward by extending the electric telescopic cylinder to perform a pressure test on the hot water bag. At the same time, the sliding arrangement of the limit rod seat and the limit rod limits the movement of the pressure-resistant support seat and the pressing seat. When the hot water bag ruptures, the hot water flows down along the upper surface of the pressure-resistant seat, and flows to the top of the filter plate along the guidance of the first water diversion block and the second water diversion block on the upper surface of the water collection mechanism. The hot water is filtered by the filter plate and discharged through the water collection tank and the outlet pipe.

[0018] Step 3: After the first pressing seat is tested, the first pressing seat is unlocked by sliding the limit block, and the second pressing seat is installed under the pressure-resistant support seat. The limit block is aligned with the upper end of the limit block locking groove, and the limit block is placed inside the limit block locking groove. The limit block is then allowed to slide along the limit block slide groove. The two limit blocks on the same side are attracted to each other by the internal magnet blocks, locking the position of the magnet block, thereby locking the position of the second pressing seat. The pressure-resistant support seat and the pressing seat are driven downward by extending the electric telescopic cylinder, thereby performing a press test on the hot water bag;

[0019] Step 4: After the second press seat detection is completed, release the lock of the second press seat by sliding the limit block, install the third press seat under the pressure-resistant support seat, align the limit block with the upper end of the limit block locking groove, place the limit block inside the limit block locking groove, and then let the limit block slide along the limit block slide groove. The two limit blocks on the same side attract each other due to the internal magnet blocks, locking the position of the magnet block, thereby locking the position of the third press seat, and driving the pressure-resistant support seat and the press seat downward by extending the electric telescopic cylinder to perform a press test on the hot water bag.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention sets a pressing seat in three states. In one state, the pressing seat is still flat. In another state, the shape fits the shape of the hot water bag, simulating the area that is easily damaged when evenly pressed, thereby directionally improving the stability of that area. The last state of the pressing seat is provided with a raised pressing block, thereby simulating the pressure resistance of the hot water bag when pressed by the pointed protrusion. The pressing seat is quickly fixed and disassembled by the limit block and the limit block locking groove, thereby improving the efficiency of the test and solving the problem that the pressure resistance test of the hot water bag on the market is mostly performed on the hot water bag through a flat plate, which does not conform to the daily squeezing of the hot water bag, resulting in inaccurate test results.

[0022] 2. The detection frame provided in the present invention is sealed and connected to the detection table, thereby preventing hot water from flowing to the outside of the equipment when the hot water bag ruptures. The hot water can flow down along the upper surface of the pressure-resistant seat, and flow to the top of the filter plate along the guidance of the first water diversion block and the second water diversion block on the upper surface of the water collection mechanism. It is filtered by the filter plate and the hot water is discharged through the water collecting tank and the outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 A three-dimensional diagram of the pressure-resistant support seat of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the pressure-resistant support seat in the present invention;

[0026] Figure 4 A three-dimensional diagram of the pressing seat in the present invention;

[0027] Figure 5 A three-dimensional diagram of the first pressing seat in the present invention;

[0028] Figure 6 A three-dimensional diagram of the second pressing seat in the present invention;

[0029] Figure 7 A three-dimensional diagram of the third pressing seat in the present invention;

[0030] Figure 8 For the present invention Figure 1 AA direction cross-sectional view.

[0031] In the figure: 1. detection table; 2. support frame; 3. electric telescopic cylinder; 4. pressure-resistant support seat; 5. pressing seat; 51. first pressing seat; 52. second pressing seat; 521. pressing groove; 53. third pressing seat; 531. pressing block; 6. detection frame; 7. water collecting mechanism; 8. pressure-resistant seat; 9. water collecting groove; 10. water outlet pipe; 11. limit rod seat; 12. limit rod; 13. pressing seat convex groove; 14. limit block slide groove; 15. limit block; 16. magnet block; 17. limit block locking groove; 18. pressing seat convex block; 19. filter plate; 20. fixing frame; 21. first water diversion block; 22. second water diversion block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figure 1-8 , an embodiment of the present invention provides: a hot water bag pressure testing device, comprising a testing platform 1, a support frame 2 is fixedly arranged above the testing platform 1, an electric telescopic cylinder 3 is symmetrically arranged below the middle position of the support frame 2, a pressure-resistant support seat 4 is arranged below the electric telescopic cylinder 3, and a pressing seat 5 is movably arranged below the pressure-resistant support seat 4, the pressing seat 5 is divided into three different structures: a first pressing seat 51, a second pressing seat 52 and a third pressing seat 53, a pressing seat protrusion 18 is arranged at the middle position of the upper ends of the first pressing seat 51, the second pressing seat 52 and the third pressing seat 53, four limit block locking grooves 17 are relatively symmetrically arranged on both sides of the upper ends of the first pressing seat 51, the second pressing seat 52 and the third pressing seat 53, a limit block slide 14 is provided inside the two sides of the lower end of the pressure-resistant support seat 4, a limit block 15 is arranged inside the limit block slide 14, and the limit block 15 is slidably arranged with the limit block locking groove 17, and a testing frame 6 is fixedly arranged at the middle position above the testing platform 1.

[0034] See also Figure 1 A water collecting mechanism 7 is provided inside the detection frame 6, and a pressure-resistant seat 8 is fixedly provided above the water collecting mechanism 7. A water collecting trough 9 is provided in the middle position of the water collecting mechanism 7. A water outlet pipe 10 is sealed and connected to the bottom of the water collecting trough 9. The water outlet pipe 10 is an L-shaped pipe, and the lower end of the water outlet pipe 10 extends to the outside of the detection platform 1. Limiting rods 12 are respectively provided at the front and rear ends of both sides of the detection frame 6, and limiting rod seats 11 are respectively provided at the four corners of the pressure-resistant support seat 4, and the limiting rod seats 11 are slidably connected to the limiting rod 12.

[0035] See also Figure 8A filter plate 19 is movably provided inside the upper end of the water collecting trough 9, and a fixed frame 20 is provided at the outer end of the water collecting mechanism 7. A first water diversion block 21 is provided on the inner side of the fixed frame 20, and a first water diversion block 21 is provided on one side of the first water diversion block 21. One side of the first water diversion block 21 is fitted with the inner side of the fixed frame 20, and the other two sides of the first water diversion block 21 are respectively fitted with the adjacent second water diversion block 22, and the other side of the second water diversion block 22 is fitted with the outer side of the filter plate 19. The first water diversion block 21 and the second water diversion block 22 are inclined downward near one end of the filter plate 19.

[0036] See also Figure 2 and Figure 3 A pressing seat protrusion groove 13 is provided at the center position of the lower end of the pressure-resistant support seat 4, and the pressing seat protrusion groove 13 is corresponding to the pressing seat protrusion 18.

[0037] See also Figure 2 and Figure 4 The limit block locking groove 17 is an L-shaped groove, the limit block 15 and the limit block slide groove 14 are slidingly arranged, the vertical width of the upper end of the limit block locking groove 17 is greater than the width of the limit block 15, and the horizontal height of the lower end of the limit block locking groove 17 is greater than the height of the lower end of the limit block 15.

[0038] See also Figure 2 and Figure 3 A magnet block 16 is provided at the middle position of the limit block 15 and close to one side of the adjacent limit block 15. The limit block 15 is a U-shaped structure.

[0039] See also Figure 5 The upper end of the first pressing seat 51 is a planar structure.

[0040] See also Figure 6 A pressing groove 521 is provided at the middle position of the upper end of the second pressing seat 52, and the pressing groove 521 corresponds to the shape of the hot water bag.

[0041] See also Figure 7 A pressing block 531 is provided at the middle position of the upper end of the third pressing seat 53, and the pressing block 531 is in the shape of a quadrangular pyramid. The third pressing seat 53 and the pressing block 531 are an integral structure.

[0042] A method for detecting a hot water bag pressure resistance detection device comprises the following steps:

[0043] Step 1: During the test, place the hot water bag filled with hot water above the pressure-resistant seat 8 inside the test frame 6, install the first pressing seat 51 below the pressure-resistant support seat 4, align the limit block 15 with the upper end of the limit block locking groove 17, place the limit block 15 inside the limit block locking groove 17, and then let the limit block 15 slide along the limit block slide groove 14. The two limit blocks 15 on the same side are attracted to each other by the internal magnet blocks 16, locking the position of the magnet block 16, thereby locking the position of the first pressing seat 51;

[0044] Step 2: The pressure-resistant support seat 4 and the pressing seat 5 are driven downward by extending the electric telescopic cylinder 3, thereby performing a pressure test on the hot water bag. At the same time, the sliding arrangement of the limit rod seat 11 and the limit rod 12 limits the movement of the pressure-resistant support seat 4 and the pressing seat 5. When the hot water bag ruptures, the hot water flows down along the upper surface of the pressure-resistant seat 8, and flows to the top of the filter plate 19 along the guidance of the first water diversion block 21 and the second water diversion block 22 on the upper surface of the water collection mechanism 7. The hot water is filtered by the filter plate 19 and discharged through the water collection tank 9 and the outlet pipe 10.

[0045] Step 3: After the detection of the first pressing seat 51 is completed, the lock of the first pressing seat 51 is released by sliding the limit block 15, and the second pressing seat 52 is installed under the pressure-resistant support seat 4. The limit block 15 is aligned with the upper end of the limit block locking groove 17, and the limit block 15 is placed inside the limit block locking groove 17. Then, the limit block 15 is allowed to slide along the limit block slide groove 14. The two limit blocks 15 on the same side are attracted to each other by the internal magnet blocks 16, and the position of the magnet blocks 16 is locked, thereby locking the position of the second pressing seat 52. The pressure-resistant support seat 4 and the pressing seat 5 are driven downward by extending the electric telescopic cylinder 3, so as to perform a press test on the hot water bag;

[0046] Step 4: After the detection of the second pressing seat 52 is completed, the lock of the second pressing seat 52 is released by sliding the limit block 15, and the third pressing seat 53 is installed under the pressure-resistant support seat 4. The limit block 15 is aligned with the upper end of the limit block locking groove 17, and the limit block 15 is placed inside the limit block locking groove 17. Then, the limit block 15 is allowed to slide along the limit block slide groove 14. The two limit blocks 15 on the same side are attracted to each other by the internal magnet block 16, and the position of the magnet block 16 is locked, thereby locking the position of the third pressing seat 53. The pressure-resistant support seat 4 and the pressing seat 5 are driven downward by extending the electric telescopic cylinder 3, so that the hot water bag is pressed and tested.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hot water bag pressure test device, comprising a test table (1), characterized in that: A support frame (2) is fixedly provided above the test platform (1), an electric telescopic cylinder (3) is symmetrically provided below the middle position of the support frame (2), a pressure-resistant support seat (4) is provided below the electric telescopic cylinder (3), a pressing seat (5) is movably provided below the pressure-resistant support seat (4), and the pressing seat (5) is divided into three different structures: a first pressing seat (51), a second pressing seat (52) and a third pressing seat (53), a pressing seat protrusion (18) is provided at the middle position of the upper ends of the first pressing seat (51), the second pressing seat (52) and the third pressing seat (53), four limit block locking grooves (17) are relatively symmetrically provided on both sides of the upper ends of the first pressing seat (51), the second pressing seat (52) and the third pressing seat (53), and the pressure-resistant support seat (4) is provided below the pressure-resistant support seat (4). (4) A limit block slide groove (14) is provided inside both sides of the lower end, a limit block (15) is provided inside the limit block slide groove (14), and the limit block (15) and the limit block locking groove (17) are slidably provided, and a detection frame (6) is fixedly provided at the middle position above the detection platform (1); the limit block locking groove (17) is an L-shaped groove, the limit block (15) and the limit block slide groove (14) are slidably provided, the vertical width of the upper end of the limit block locking groove (17) is greater than the width of the limit block (15), and the horizontal height of the lower end of the limit block locking groove (17) is greater than the height of the lower end of the limit block (15); a magnet block (16) is provided at the middle position of the limit block (15) on one side close to the adjacent limit block (15), and the limit block (15) is a U-shaped structure.

2. A hot water bag pressure detection device according to claim 1, characterized in that: A water collecting mechanism (7) is provided inside the detection frame (6), a pressure-resistant seat (8) is fixedly provided above the water collecting mechanism (7), a water collecting tank (9) is provided at the middle position of the water collecting mechanism (7), a water outlet pipe (10) is sealedly connected below the water collecting tank (9), the water outlet pipe (10) is an L-shaped pipe, and the lower end of the water outlet pipe (10) extends to the outside of the detection platform (1), limiting rods (12) are respectively provided at the front and rear ends of both sides of the detection frame (6), and limiting rod seats (11) are respectively provided at the four corners of the pressure-resistant support seat (4), and the limiting rod seats (11) are slidably connected to the limiting rods (12).

3. A hot water bag pressure detection device according to claim 2, characterized in that: A filter plate (19) is movably provided inside the upper end of the water collecting tank (9), a fixed frame (20) is provided at the outer end of the water collecting mechanism (7), a first water guide block (21) is provided on the inner side of the fixed frame (20), and a first water guide block (21) is provided on one side of the first water guide block (21), one side of the first water guide block (21) is fitted with the inner side of the fixed frame (20), the other two sides of the first water guide block (21) are fitted with adjacent second water guide blocks (22), the other side of the second water guide block (22) is fitted with the outer side of the filter plate (19), and the first water guide block (21) and the second water guide block (22) are inclined downward near one end of the filter plate (19).

4. A hot water bag pressure detection device according to claim 3, characterized in that: A pressing seat convex block groove (13) is provided at the center position of the lower end of the pressure-resistant support seat (4), and the pressing seat convex block groove (13) and the pressing seat convex block (18) are provided correspondingly.

5. The hot water bag pressure detection device according to claim 4, characterized in that: The upper end of the first pressing seat (51) is a planar structure.

6. The hot water bag pressure detection device according to claim 5, characterized in that: A pressing groove (521) is provided at the middle position of the upper end of the second pressing seat (52), and the pressing groove (521) corresponds to the shape of the hot water bag.

7. The hot water bag pressure detection device according to claim 6, characterized in that: A pressing block (531) is provided at the middle position of the upper end of the third pressing seat (53), and the pressing block (531) is in the shape of a quadrangular pyramid. The third pressing seat (53) and the pressing block (531) are an integrated structure.

8. A detection method for a hot water bag pressure detection device according to claim 7, characterized in that: The following steps are involved: Step 1: During the test, a hot water bag filled with hot water is placed above the pressure-resistant seat (8) inside the test frame (6), and the first pressing seat (51) is installed below the pressure-resistant support seat (4). The limit block (15) is aligned with the upper end of the limit block locking groove (17), and the limit block (15) is placed inside the limit block locking groove (17). The limit block (15) is then allowed to slide along the limit block slide groove (14). The two limit blocks (15) on the same side are attracted to each other by the magnet blocks (16) inside, thereby locking the position of the magnet block (16), thereby locking the position of the first pressing seat (51); Step 2: The pressure-resistant support seat (4) and the pressing seat (5) are driven downward by extending the electric telescopic cylinder (3), thereby performing a pressure test on the hot water bag. At the same time, the sliding arrangement of the limit rod seat (11) and the limit rod (12) limits the movement of the pressure-resistant support seat (4) and the pressing seat (5). When the hot water bag ruptures, the hot water flows down along the upper surface of the pressure-resistant seat (8), and flows to the top of the filter plate (19) along the guidance of the first water guide block (21) and the second water guide block (22) on the upper surface of the water collection mechanism (7). The hot water is filtered by the filter plate (19) and discharged through the water collection tank (9) and the water outlet pipe (10); Step 3: After the first pressing seat (51) is detected, the first pressing seat (51) is unlocked by sliding the limit block (15), and the second pressing seat (52) is installed below the pressure-resistant support seat (4). The limit block (15) is aligned with the upper end of the limit block locking groove (17), and the limit block (15) is placed inside the limit block locking groove (17). The limit block (15) is then slid along the limit block slide groove (14). The two limit blocks (15) on the same side are attracted to each other by the internal magnet blocks (16), and the position of the magnet block (16) is locked, thereby locking the position of the second pressing seat (52). The pressure-resistant support seat (4) and the pressing seat (5) are driven downward by extending the electric telescopic cylinder (3), thereby performing a press test on the hot water bag; Step 4: After the second pressing seat (52) is detected, the second pressing seat (52) is unlocked by sliding the limit block (15), and the third pressing seat (53) is installed below the pressure-resistant support seat (4). The limit block (15) is aligned with the upper end of the limit block locking groove (17), and the limit block (15) is placed inside the limit block locking groove (17). The limit block (15) is then slid along the limit block slide groove (14). The two limit blocks (15) on the same side are attracted to each other by the internal magnet blocks (16), thereby locking the position of the magnet block (16), thereby locking the position of the third pressing seat (53). The pressure-resistant support seat (4) and the pressing seat (5) are driven downward by extending the electric telescopic cylinder (3), thereby performing a press test on the hot water bag.

Images