Impact resistance test device for stainless steel corrugated pipe for gas appliance connection

Abstract

The utility model relates to the technical field of impact test devices, and discloses a stainless steel corrugated pipe impact resistance test device for gas appliance connection, which comprises a machine body, the lower part of the right side of the machine body is fixedly connected with a motor I, and the bottom of the machine body is rotatably connected with a bidirectional threaded rod; the right end of the bidirectional threaded rod is fixedly connected to the driving end of the first motor, pushing blocks are slidably connected to the left side and the right side of the bottom of the machine body correspondingly, the left end and the right end of the bidirectional threaded rod are in threaded connection with the interiors of the two pushing blocks correspondingly, and a second sliding groove is formed in the bottom of the machine body. And the two pushing blocks are slidably connected to the interior of the second sliding groove, and a lifting block is slidably connected to the interior of the machine body. According to the lifting device, through cooperation of the machine body, the first motor, the bidirectional threaded rod, the two pushing blocks, the multiple connecting rods, the connecting block, the two sliding blocks and the lifting block, the function of freely adjusting the height of the lifting block is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact test devices, in particular to an impact resistance test device for stainless steel corrugated pipes used for connecting gas appliances. Background Art

[0002] The origin of the impact resistance test device for stainless steel corrugated pipes used for connecting gas appliances mainly stems from the background of the continuous improvement and strict requirements for the safety performance of gas appliances. In order to improve the impact resistance of stainless steel corrugated pipes and ensure their safety in actual use.

[0003] The prior art includes: a pneumatic impact device driven by compressed air or gas, which can provide high-speed and high-energy impact force to simulate the situation when the corrugated pipe is suddenly impacted; a hydraulic system can provide stable and controllable impact force, which is commonly used to simulate the situation when the corrugated pipe is continuously impacted; a high-speed pendulum device uses the kinetic energy of a heavy object to generate impact force, which is suitable for simulating the situation when the corrugated pipe is impacted linearly or obliquely.

[0004] However, when the traditional equipment conducts experimental tests on stainless steel corrugated pipes, the test impact force is not adjustable. The non-adjustable impact force means that the test conditions cannot be adjusted according to the characteristics of different corrugated pipes and test purposes. This leads to a deviation between the test results and the actual situation, which is not conducive to accurately evaluating the performance and durability of the corrugated pipe. Therefore, an impact resistance test device for stainless steel corrugated pipes used for connecting gas appliances is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides an impact resistance test device for stainless steel corrugated pipes used for connecting gas appliances, aiming to improve the problem that the test impact force in the prior art cannot be adjusted, resulting in a deviation between the test results and the actual situation.

[0006] To achieve the above object, the utility model adopts the following technical solution: An impact resistance test device for a stainless steel corrugated pipe used for connecting gas appliances, comprising a machine body. A first motor is fixedly connected to the lower right side of the machine body. A bidirectional threaded rod is rotatably connected to the bottom of the machine body, and the right end of the bidirectional threaded rod is fixedly connected to the driving end of the first motor. The left and right sides of the bottom of the machine body are both slidably connected with pushing blocks, and the left and right ends of the bidirectional threaded rod are respectively threadedly connected inside the two pushing blocks. A second sliding groove is formed in the bottom of the machine body, and the two pushing blocks are both slidably connected inside the second sliding groove. A lifting block is slidably connected inside the machine body. First sliding grooves are respectively formed on the left and right sides inside the machine body, and the lifting block is slidably connected to the adjacent sides of the two first sliding grooves. Two sliding blocks are slidably connected to the rear side of the bottom of the lifting block. Two first limiting grooves are formed in the bottom of the lifting block, and the two sliding blocks are respectively slidably connected inside the two first limiting grooves. A connecting block is slidably connected to the rear side inside the machine body. A second limiting groove is formed on the rear side of the machine body, and the connecting block is slidably connected inside the second limiting groove. A plurality of uniformly distributed connecting rods are rotatably connected inside the connecting block. The lower ends of two of the lower connecting rods are respectively rotatably connected inside the two pushing blocks, and the upper ends of two of the upper connecting rods are respectively rotatably connected inside the two sliding blocks. Tooth teeth are provided at the adjacent ends of the plurality of connecting rods, and every two of the connecting rods are meshed with each other. A clamping assembly is arranged inside the machine body.

[0007] Further, the clamping assembly includes a second motor, which is fixedly connected to the upper part of the lifting block. A unidirectional threaded rod is rotatably connected inside the lifting block, and the upper end of the unidirectional threaded rod is fixedly connected to the driving end of the second motor. A third sliding groove is formed in the middle of the inside of the lifting block, and a limiting block is fixedly connected to the middle of the inside of the lifting block. The lower end of the unidirectional threaded rod is rotatably connected inside the limiting block. A pulling block is slidably connected inside the machine body, and the unidirectional threaded rod is threadedly connected inside the pulling block. A sliding rod is fixedly connected to the bottom of the lifting block. Two clamping blocks are slidably connected to the bottom of the lifting block, and the two clamping blocks are respectively slidably connected to the left and right sides of the outer periphery of the sliding rod. Clamping rods are rotatably connected to the upper ends of the two sliding rods, and the upper ends of the two clamping rods are respectively rotatably connected to the left and right sides of the pulling block. The pulling block, the two clamping blocks and the two clamping rods are all slidably connected inside the lifting block, and the limiting block is fixedly connected to the middle of the inside of the lifting block.

[0008] Further, a workbench is fixedly connected to the bottom inside the machine body.

[0009] Further, a safety door is rotatably connected to the left side of the machine body, and a handle is fixedly connected to the front right side of the safety door.

[0010] Further, the two sliding blocks and the connecting block all have T-shaped protruding blocks.

[0011] Further, the safety door is set to be transparent.

[0012] Further, the second limiting groove and the two first limiting grooves are all T-shaped.

[0013] Further, protrusions are arranged on both the front and rear sides of the pulling block.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, when starting the first motor, the first motor drives the bidirectional threaded rod to rotate. The bidirectional threaded rod pushes the two pushing blocks to approach each other. The two pushing blocks push the two lower connecting rods to approach each other. When the two lower connecting rods approach each other, they will push the connecting block to slide upward, and at the same time, the two lower connecting rods will drive the two upper connecting rods to approach each other. Then, the two upper connecting rods will push the two sliding blocks to approach each other. When the two sliding blocks approach each other, they will push the lifting block to slide upward. When the lifting block slides to the set height, turn off the first motor. Thus, the function of freely adjusting the height of the lifting block is realized.

[0016] 2. In the utility model, when starting the second motor, the second motor drives the unidirectional threaded rod to rotate. The unidirectional threaded rod pulls the pulling block to slide upward. The pulling block pulls the two clamping rods to approach each other. The two clamping rods pull the two clamping blocks to approach each other. When the two clamping blocks bite on the heavy object for experiment, turn off the second motor. Thus, the function of clamping the heavy object for experiment is realized. Description of the Drawings

[0017] Figure 1 is a three-dimensional schematic diagram of a stainless steel bellows impact resistance test device for gas appliance connections proposed by the utility model;

[0018] Figure 2 is a structural schematic diagram of the first limiting groove of a stainless steel bellows impact resistance test device for gas appliance connections proposed by the utility model;

[0019] Figure 3 is a structural schematic diagram of the bidirectional threaded rod of a stainless steel bellows impact resistance test device for gas appliance connections proposed by the utility model;

[0020] Figure 4 is a structural schematic diagram of the connecting block of a stainless steel bellows impact resistance test device for gas appliance connections proposed by the utility model;

[0021] Figure 5Schematic structural diagram of a limiting block of an impact resistance test device for a stainless steel corrugated pipe used for connecting gas appliances proposed by the present utility model.

[0022] Legend:

[0023] 1. Machine body; 2. First motor; 3. Bidirectional threaded rod; 4. Pushing block; 5. Connecting rod; 6. Connecting block; 7. Sliding block; 8. Lifting block; 9. First limiting groove; 10. Second limiting groove; 11. First sliding groove; 12. Second sliding groove; 13. Second motor; 14. Limiting block; 15. Unidirectional threaded rod; 16. Pulling block; 17. Slide bar; 18. Clamping block; 19. Clamping rod; 20. Third sliding groove; 21. Workbench; 22. Safety door; 23. Handle. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1 - 4, an embodiment provided by the present utility model: an impact resistance test device for a stainless steel corrugated pipe used for connecting gas appliances, including a machine body 1. The machine body 1 can prevent the laboratory from being interfered by the outside world. A first motor 2 is fixedly connected to the lower right side of the machine body 1. The first motor 2 can drive a bidirectional threaded rod 3 to rotate. The bidirectional threaded rod 3 is rotatably connected to the bottom of the machine body 1. The bidirectional threaded rod 3 is used to push two pushing blocks 4 to slide close to each other. The right end of the bidirectional threaded rod 3 is fixedly connected to the driving end of the first motor 2. The left and right sides of the bottom of the machine body 1 are both slidably connected with pushing blocks 4. The two pushing blocks 4 are used to push the two lower connecting rods 5 to approach each other. The left and right ends of the bidirectional threaded rod 3 are respectively threadedly connected to the interiors of the two pushing blocks 4. A second sliding groove 12 is formed in the bottom of the machine body 1. The two pushing blocks 4 are both slidably connected to the interior of the second sliding groove 12. A lifting block 8 is slidably connected to the interior of the machine body 1. The lifting block 8 is used to lift the internal structure. First sliding grooves 11 are respectively formed in the left and right sides of the interior of the machine body 1. The lifting block 8 is slidably connected to the adjacent sides of the two first sliding grooves 11. Two sliding blocks 7 are slidably connected to the rear side of the bottom of the lifting block 8. The two sliding blocks 7 are used to push the lifting block 8 to rise. Two first limiting grooves 9 are formed in the bottom of the lifting block 8. The two sliding blocks 7 are respectively slidably connected to the interiors of the two first limiting grooves 9. A connecting block 6 is slidably connected to the rear side of the interior of the machine body 1. The connecting block 6 is used to support multiple connecting rods 5. The two sliding blocks 7 and the connecting block 6 both have T-shaped protruding blocks. A second limiting groove 10 is formed in the rear side of the machine body 1. The second limiting groove 10 and the two first limiting grooves 9 are both T-shaped. The connecting block 6 is slidably connected to the interior of the second limiting groove 10. The T-shaped design can make the connection more firm. Multiple uniformly distributed connecting rods 5 are rotatably connected to the interior of the connecting block 6. The multiple connecting rods 5 are used to lift the height of the lifting block 8. The lower ends of two of the lower connecting rods 5 are respectively rotatably connected to the interiors of the two pushing blocks 4. The upper ends of two of the upper connecting rods 5 are respectively rotatably connected to the interiors of the two sliding blocks 7. Tooth profiles are provided at the adjacent ends of the multiple connecting rods 5. Every two of the connecting rods 5 are meshed with each other. When the two lower pushing blocks 4 push the two lower connecting rods 5 to approach each other, the two lower connecting rods 5 will drive the two upper connecting rods 5 to approach each other while pushing the connecting block 6 to rise. A clamping assembly is arranged in the interior of the machine body 1. A workbench 21 is fixedly connected to the bottom of the interior of the machine body 1. The workbench 21 is used to fix the stainless steel corrugated pipe. A safety door 22 is rotatably connected to the left side of the machine body 1. The safety door 22 can prevent external personnel from being harmed. The safety door 22 is made transparent. External personnel can directly observe the experimental process through the safety door 22. A handle 23 is fixedly connected to the front right side of the safety door 22. The handle 23 is used to open the safety door 22.

[0026] Refer to Figure 1 and Figure 5, the clamping assembly includes a second motor 13, and the second motor 13 is used to drive the rotation of the one-way threaded rod 15. The second motor 13 is fixedly connected to the upper part of the lifting block 8. The one-way threaded rod 15 is rotatably connected inside the lifting block 8. The upper end of the one-way threaded rod 15 is fixedly connected to the driving end of the second motor 13. A third sliding groove 20 is formed in the middle of the inside of the lifting block 8. A limiting block 14 is fixedly connected to the middle of the inside of the lifting block 8. The limiting block 14 can prevent the pulling block 16 from sliding down excessively and fix the rotating shaft of the one-way threaded rod 15. The lower end of the one-way threaded rod 15 is rotatably connected inside the limiting block 14. A pulling block 16 is slidably connected inside the machine body 1. The pulling block 16 is used to pull the two clamping rods 19 to move. Protrusions are arranged on both the front and rear sides of the pulling block 16. The one-way threaded rod 15 is threadedly connected inside the pulling block 16. A sliding rod 17 is fixedly connected to the bottom of the lifting block 8. The sliding rod 17 is used to limit the sliding direction of the two clamping blocks 18. Two clamping blocks 18 are slidably connected to the bottom of the lifting block 8. The two clamping blocks 18 are used to clamp the test heavy object. The two clamping blocks 18 are respectively slidably connected to the left and right sides of the outer periphery of the sliding rod 17. The upper ends of the two sliding rods 17 are respectively rotatably connected with clamping rods 19. The two clamping rods 19 are used to drive the two clamping blocks 18 to approach or move away from each other. The upper ends of the two clamping rods 19 are respectively rotatably connected to the left and right sides of the pulling block 16. The pulling block 16, the two clamping blocks 18 and the two clamping rods 19 are all slidably connected inside the lifting block 8. The limiting block 14 is fixedly connected to the middle of the inside of the lifting block 8.

[0027] Working principle: Place the experimental heavy object on the upper part of the workbench 21, start the second motor 13, the second motor 13 drives the one-way threaded rod 15 to rotate, the one-way threaded rod 15 pulls the pulling block 16 to slide upward, the pulling block 16 pulls the two clamping rods 19 to approach each other, the two clamping rods 19 pull the two clamping blocks 18 to approach each other. When the two clamping blocks 18 bite on the experimental heavy object, turn off the second motor 13, start the first motor 2, the first motor 2 drives the bidirectional threaded rod 3 to rotate, the bidirectional threaded rod 3 pushes the two pushing blocks 4 to approach each other, the two pushing blocks 4 push the two connecting rods 5 at the lower side to approach each other. While the two connecting rods 5 at the lower side approach each other and push the connecting block 6 to slide upward, the two connecting rods 5 at the lower side will drive the two connecting rods 5 at the upper side to approach each other. Then the two connecting rods 5 at the upper side will push the two sliding blocks 7 to approach each other, and when the two sliding blocks 7 approach each other, they will push the lifting block 8 to slide upward. When the lifting block 8 slides to the set height, turn off the first motor 2. Place the experimental stainless steel bellows inside the workbench 21 and fix it well, start the lifting block 8, the lifting block 8 pushes the pulling block 16 to move downward, the pulling block 16 will push the two clamping rods 19 to move away from each other, the two clamping rods 19 will push the two clamping blocks 18 to open, and then the experimental heavy object will fall and hit the surface of the experimental stainless steel bellows. After the experimental personnel collect the experimental data, start the first motor 2, the first motor 2 drives the bidirectional threaded rod 3 to rotate, the bidirectional threaded rod 3 pushes the two pushing blocks 4 to move away from each other, the two pushing blocks 4 push the two connecting rods 5 at the lower side to move away from each other. While the two connecting rods 5 at the lower side move away from each other and pull the connecting block 6 to slide downward, the two connecting rods 5 at the lower side will drive the two connecting rods 5 at the upper side to move away from each other. Then the two connecting rods 5 at the upper side will pull the two sliding blocks 7 to move away from each other, and when the two sliding blocks 7 move away from each other, they will pull the lifting block 8 to slide downward. When the lifting block 8 returns to its original position, turn off the first motor 2.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for testing the impact resistance of a stainless steel bellows for connecting a gas appliance, comprising a body (1), characterized in that: The lower right side of the machine body (1) is fixedly connected to a motor 1 (2); the bottom of the machine body (1) is rotatably connected to a bidirectional threaded rod (3); the right end of the bidirectional threaded rod (3) is fixedly connected to the driving end of the motor 1 (2); the left and right sides of the bottom of the machine body (1) are slidably connected to push blocks (4); the left and right ends of the bidirectional threaded rod (3) are respectively threadedly connected to the inside of the two push blocks (4); the bottom of the machine body (1) is provided with a sliding groove 2 (12); the two push blocks (4) are slidably connected to the inside of the sliding groove 2 (12); the inside of the machine body (1) is slidably connected to a lifting block (8); the inside of the machine body (1) is provided with a sliding groove 1 (11) on the left and right sides; the lifting block (8) is slidably connected to the adjacent side of the two sliding grooves 1 (11); the bottom rear side of the lifting block (8) is slidably connected to two sliding blocks (7 ), two limiting grooves (9) are provided at the bottom of the lifting block (8), and the two sliding blocks (7) are respectively slidably connected inside the two limiting grooves (9); a connecting block (6) is slidably connected to the rear side of the interior of the body (1); a limiting groove (10) is provided on the rear side of the body (1), and the connecting block (6) is slidably connected inside the limiting groove (10); a plurality of evenly distributed connecting rods (5) are rotatably connected inside the connecting block (6), wherein the lower ends of the two lower connecting rods (5) are respectively rotatably connected inside the two pushing blocks (4), and the upper ends of the two upper connecting rods (5) are respectively rotatably connected inside the two sliding blocks (7); the adjacent ends of the plurality of connecting rods (5) are all provided with teeth, wherein every two connecting rods (5) are meshed with each other, and a clamping assembly is provided inside the body (1).

2. The impact resistance test device for a stainless steel bellows for connecting a gas appliance according to claim 1, characterized in that: The clamping assembly comprises a second motor (13), the second motor (13) being fixedly connected to the upper part of the lifting block (8), the lifting block (8) being internally rotatably connected with a one-way threaded rod (15), the upper end of the one-way threaded rod (15) being fixedly connected to the driving end of the second motor (13), a sliding groove three (20) being provided in the middle part of the lifting block (8), the middle part of the lifting block (8) being fixedly connected with a limit block (14), the lower end of the one-way threaded rod (15) being rotatably connected to the inside of the limit block (14), the inside of the machine body (1) being slidably connected with a pulling block (16), the one-way threaded rod (15) being threadedly connected to the pulling block The lifting block (16) is fixedly connected to the bottom of the lifting block (8) with a sliding rod (17), and the bottom of the lifting block (8) is slidably connected to two clamping blocks (18), and the two clamping blocks (18) are respectively slidably connected to the left and right sides of the outer periphery of the sliding rod (17), and the upper ends of the two sliding rods (17) are rotatably connected to clamping rods (19), and the upper ends of the two clamping rods (19) are respectively rotatably connected to the left and right sides of the pulling block (16), and the pulling block (16), the two clamping blocks (18) and the two clamping rods (19) are all slidably connected to the inside of the lifting block (8), and the limit block (14) is fixedly connected to the middle part of the inside of the lifting block (8).

3. The impact resistance test device for a stainless steel bellows for connecting a gas appliance according to claim 1, characterized in that: A workbench (21) is fixedly connected to the inner bottom of the machine body (1).

4. The impact resistance test device for a stainless steel bellows for connecting a gas appliance according to claim 1, characterized in that: The left side of the machine body (1) is rotatably connected to a safety door (22), and the front right side of the safety door (22) is fixedly connected to a handle (23).

5. The impact resistance test device for stainless steel bellows used for connecting gas appliances according to claim 1, characterized in that: Both the two sliding blocks (7) and the connecting block (6) have T-shaped protruding blocks.

6. The impact resistance test device for stainless steel bellows used for connecting gas appliances according to claim 4, characterized in that: The safety door (22) is configured to be transparent.

7. The impact resistance test device for stainless steel bellows used for connecting gas appliances according to claim 1, characterized in that: The second limiting groove (10) and the two first limiting grooves (9) are both T-shaped.

8. The impact resistance test device for stainless steel bellows used for connecting gas appliances according to claim 2, characterized in that: The pulling block (16) is provided with protrusions on both the front and rear sides.

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