A device for testing the pressure resistance of a PVC wire-reinforced hose

Abstract

The utility model relates to the technical field of hose pressure resistance detection, especially to a PVC steel wire reinforced hose pressure resistance testing device. Including base, the one side of base top is installed with pressure measuring cylinder, the other side of base top is opened with first runner, the common slide connection of two first runners has the baffle, is provided with the hose between pressure measuring cylinder and baffle, still including clamping mechanism and plugging mechanism, two sets of clamping mechanism are established in base top, two sets of clamping mechanism are used to clamp the hose, and the plugging mechanism is set up in the one side of baffle. The utility model discloses the setting of plugging mechanism can seal the one end of hose, and with the increase of hose internal pressure value, the effect of the one end of hose sealing is also better and better, through the setting of clamping mechanism, can clamp the both ends of hose, prevent from the influence of some factors, make the hose separate from pressure measuring cylinder or plugging mechanism, thereby lead to the situation of pressure resistance detection failure.

Description

Technical Field

[0001] This utility model relates to the field of hose pressure resistance testing technology, and in particular to a PVC steel wire reinforced hose pressure resistance testing device. Background Technology

[0002] PVC steel wire reinforced hose is a tubular conveying structure with good pressure resistance and corrosion resistance, and is suitable for agricultural machinery, petrochemical equipment and mining engineering. Pressure testing of PVC steel wire reinforced hoses is a necessary process in the production of PVC steel wire reinforced hoses. One end of the PVC steel wire reinforced hose is sealed with a sealing component, and a pressure testing cylinder is connected to the other end of the PVC steel wire reinforced hose. Gas or liquid is continuously supplied into the PVC steel wire reinforced hose to test the maximum pressure value of the PVC steel wire reinforced hose. When performing pressure tests on PVC steel wire reinforced hoses, the sealing component at one end of the hose may fail to completely seal it, leading to air leakage and inaccurate pressure test results. Utility Model Content

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a PVC steel wire reinforced hose pressure testing device.

[0004] The technical solution of this utility model is: a PVC steel wire reinforced hose pressure resistance testing device, including a base, a pressure testing cylinder installed on one side of the top of the base, and first sliding grooves symmetrically opened on the other side of the top of the base. A baffle is slidably connected in both first sliding grooves. A hose is arranged between the pressure testing cylinder and the baffle. It also includes a clamping mechanism and a sealing mechanism. Two sets of clamping mechanisms are provided above the base. The two sets of clamping mechanisms are used to clamp the hose. The sealing mechanism is set on one side of the baffle and located inside the other end of the hose. The sealing mechanism is used to seal the end of the hose away from the pressure testing cylinder.

[0005] Preferably, the sealing mechanism includes a sliding plate, a sliding groove is provided inside the baffle, the sliding plate is slidably connected in the sliding groove, a number of connecting rods are fixedly connected to one side of the sliding plate, one end of each of the connecting rods slides through the baffle and is fixedly connected to a pressing plate, and one side of the pressing plate is in contact with rubber.

[0006] Preferably, the sealing mechanism further includes a connecting shaft, which is fixedly connected to one side of the baffle. The connecting shaft is slidably connected to the pressing plate and movably connected to the rubber. A limiting plate is fixedly connected to one end of the connecting shaft, and the limiting plate is fixedly connected to the rubber.

[0007] Preferably, the sealing mechanism further includes a connecting pipe, and an air injection groove communicating with the sliding groove is opened inside the baffle. The connecting pipe is connected to the side of the baffle away from the hose and located at the air injection groove. The other end of the connecting pipe is connected to the pressure measuring cylinder.

[0008] Preferably, both sets of clamping mechanisms include a set of sliding blocks, and a second sliding groove is provided on the top of the base and one side of the baffle. A set of sliding blocks is slidably connected in each of the two second sliding grooves. A gripper is fixedly connected to the top of each set of sliding blocks, and a double threaded shaft is threadedly connected through the outer wall of each set of sliding blocks. A rotating rod is fixedly connected to both ends of the double threaded shaft.

[0009] Preferably, it also includes insert plates, and each of the two first sliding grooves at the top of the base is provided with several slots. Insert plates are symmetrically fixed to the bottom of the baffle, and the insert plates can be inserted into the slots.

[0010] The beneficial effects of this utility model are: 1. This utility model, through the setting of the sealing mechanism, can seal one end of the hose, and as the internal pressure value of the hose increases, the sealing effect of the hose end becomes better and better; 2. This utility model, through the setting of the clamping mechanism, can clamp both ends of the hose to prevent the hose from detaching from the pressure testing cylinder or the sealing mechanism due to some factors, thereby causing the pressure test to fail. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the insert plate of this utility model; Figure 3 This is a schematic diagram of the sealing mechanism of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing mechanism of this utility model; Figure 5 This is a schematic diagram of the gripper structure of this utility model; Figure 6 This is a schematic diagram of the clamping mechanism of this utility model.

[0012] In the attached diagram, the following are the reference numerals: 1-base, 2-pressure measuring cylinder, 3-baffle, 4-first slide groove, 5-slot, 6-insertion plate, 7-hose, 8-sliding plate, 9-connecting rod, 10-pressing plate, 11-rubber, 12-connecting shaft, 13-limiting plate, 14-connecting pipe, 15-second slide groove, 16-sliding block, 17-gripper, 18-double threaded shaft, 19-rotating rod. Detailed Implementation

[0013] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0014] A pressure resistance testing device for PVC steel wire reinforced hoses, such as Figures 1-6 As shown, the system includes a base 1, with a pressure testing cylinder 2 mounted on one side of the top of the base 1. The pressure testing cylinder 2 has two air outlets and one air inlet. The air inlet is located on the front side of the pressure testing cylinder 2, one of the air outlets is located on the rear side of the pressure testing cylinder 2, and the other air outlet is located on the side wall of the pressure testing cylinder 2. The air output of the side wall air outlet of the pressure testing cylinder 2 is only one-third of the air output of the rear air outlet. The other side of the top of the base 1 has symmetrically opened first sliding grooves 4. Two baffles 3 are slidably connected in the two first sliding grooves 4. A flexible hose 7 is provided between the pressure testing cylinder 2 and the baffle 3. One end of the flexible hose 7 is sleeved on the air outlet on the rear side of the pressure testing cylinder 2. The system also includes a clamping mechanism and a sealing mechanism. Two sets of clamping mechanisms are located on the top of the base 1 to clamp both ends of the flexible hose 7. The sealing mechanism is located on one side of the baffle 3 and inside the other end of the flexible hose 7. The sealing mechanism is used to seal the end of the flexible hose 7 that is away from the pressure testing cylinder 2.

[0015] The sealing mechanism includes a sliding plate 8. A sliding groove is provided inside the baffle 3. The sliding plate 8 is slidably connected in the sliding groove. Four connecting rods 9 are fixed to one side of the sliding plate 8. One end of each of the four connecting rods 9 slides through the baffle 3 and is fixedly connected to a pressing plate 10. One side of the pressing plate 10 is in contact with a rubber 11.

[0016] The sealing mechanism also includes a connecting shaft 12. The connecting shaft 12 is fixedly connected to one side of the baffle 3. The connecting shaft 12 is slidably connected to the pressing plate 10 and movably connected to the rubber 11. One end of the connecting shaft 12 is fixedly connected to a limiting plate 13, and the limiting plate 13 is fixedly connected to the rubber 11.

[0017] The sealing mechanism also includes a connecting pipe 14. An air injection groove communicating with the sliding groove is opened inside the baffle 3. The connecting pipe 14 is fixedly connected to the side of the baffle 3 away from the hose 7 and located at the air injection groove. The other end of the connecting pipe 14 is fixedly connected to the air outlet of the side wall of the pressure measuring cylinder 2. The connecting pipe 14 is a telescopic hose. The air injection groove of the baffle 3 and the air outlet of the side wall of the pressure measuring cylinder 2 are connected through the connecting pipe 14.

[0018] Both clamping mechanisms include a set of sliding blocks 16. The top of the base 1 and one side of the baffle 3 are provided with a second slide groove 15. A set of sliding blocks 16 is slidably connected in each of the two second slide grooves 15. Each set consists of two sliding blocks 16, which are symmetrically arranged. A gripper 17 is fixedly connected to the top of each set of sliding blocks 16. The gripper 17 is symmetrically arranged in each set. A double threaded shaft 18 is threadedly connected through the outer wall of each set of sliding blocks 16. The threads on the outer wall of the double threaded shaft 18 are two opposite threads, and the two opposite threads are threadedly connected to one sliding block 16 respectively. Rotating rods 19 are fixedly connected to both ends of the double threaded shaft 18.

[0019] It also includes a plug plate 6. Several slots 5 are opened in the two first sliding grooves 4 at the top of the base 1. The plug plate 6 is symmetrically fixed to the bottom of the baffle 3. The plug plate 6 can be inserted into the slot 5 to adjust the position of the baffle 3. The top of the baffle 3 is provided with a handle.

[0020] First, adjust the position of the baffle 3 according to the length of the hose 7. The operator lifts the baffle 3 upward using the handle on the top of the baffle 3. The baffle 3 drives the sealing mechanism, clamping mechanism and the two insert plates 6 at the bottom of it to move upward simultaneously. Then, insert the two insert plates 6 into the corresponding slots 5 through the baffle 3. This allows the baffle 3 to be flexibly adjusted according to the length of the hose 7. The slots 5 can limit the insert plates 6, so that the insert plates 6 can only move up and down. After the position of the baffle 3 is adjusted, one end of the hose 7 is connected to the air outlet on the rear side of the pressure testing cylinder 2. The other end of the hose 7 is sleeved on the outer wall of the rubber 11 and the limiting plate 13, and contacts the side wall of the baffle 3. At this time, the baffle 3 and the rubber 11 can pre-seal the hose 7. Then, the operator rotates the rotating rod 19, which drives the double threaded shaft 18 to rotate. Through the two opposite threads on the outer wall of the double threaded shaft 18 and the second sliding groove 15 limiting the sliding block 16, the rotation of the double threaded shaft 18 will cause the two sliding blocks 16 to slide towards or away from each other. At this time, the two sliding blocks 16 move towards each other, and the two sliding blocks 16 drive the two clamps 17 to move towards each other synchronously. The two clamps 17 moving towards each other will clamp the end of the hose 7, thereby preventing the hose 7 from detaching from the pressure testing cylinder 2 and the sealing mechanism. After the hose 7 is installed and clamped by the clamping mechanism, it will present a... Figure 2 , Figure 3 and Figure 5 The state in; After the hose 7 is installed, the pressure testing cylinder 2 is activated. The cylinder draws air from the front inlet and supplies gas to the hose 7 and connecting pipe 14 from the rear and side outlets, respectively. The pressure testing cylinder 2 supplies gas to the hose 7 to test its pressure resistance. The gas in the connecting pipe 14 is then transported to the air injection groove of the baffle 3. As the pressure testing cylinder 2 continuously supplies gas, the pressure at the air injection groove increases and flows towards the sliding groove of the baffle 3, simultaneously pushing the sliding plate 8 to slide within the groove. The sliding plate 8, via the connecting rod 9, drives the pressing plate 10 towards the rubber 11. Since the rubber 11 and the limiting plate 13 are fixedly connected, the rubber 11 and the limiting plate 13 cannot move. The pressure plate 10 moves toward the rubber 11, squeezing the rubber 11 and deforming it. After deformation, the rubber 11, together with the limiting plate 13, seals one end of the hose 7. As the pressure testing cylinder 2 continuously supplies gas into the hose 7 and the connecting pipe 14, the internal pressure value of the hose 7 gradually increases, the sliding distance of the sliding plate 8 gradually increases, and the degree of deformation of the rubber 11 gradually increases. The effect of the rubber 11 and the limiting plate 13 in sealing one end of the hose 7 becomes better and better until the internal pressure value of the hose 7 reaches its peak. The pressure testing cylinder 2 continues to supply gas, causing the hose 7 to burst. At this point, the pressure resistance test of the hose 7 is completed. The rotating rod 19 is rotated in the opposite direction, so that the two sliding blocks 16 slide in opposite directions to facilitate the pressure resistance test of the next hose 7.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pressure testing device for PVC steel wire reinforced hose, comprising a base (1), a pressure testing cylinder (2) installed on one side of the top of the base (1), and first grooves (4) symmetrically opened on the other side of the top of the base (1), with baffles (3) slidably connected in both first grooves (4), and a hose (7) disposed between the pressure testing cylinder (2) and the baffles (3), characterized in that, It also includes a clamping mechanism and a sealing mechanism. Two sets of clamping mechanisms are provided above the base (1). The two sets of clamping mechanisms are used to clamp the hose (7). The sealing mechanism is located on one side of the baffle (3) and inside the other end of the hose (7). The sealing mechanism is used to seal the end of the hose (7) away from the pressure measuring cylinder (2).

2. The PVC steel wire reinforced hose compression testing device according to claim 1, characterized in that: The sealing mechanism includes a sliding plate (8), a sliding groove is provided inside the baffle (3), the sliding plate (8) is slidably connected in the sliding groove, a number of connecting rods (9) are fixedly connected to one side of the sliding plate (8), one end of each of the connecting rods (9) slides through the baffle (3) and is fixedly connected to a pressing plate (10), and one side of the pressing plate (10) is in contact with rubber (11).

3. The PVC steel wire reinforced hose compression testing device according to claim 2, characterized in that: The sealing mechanism also includes a connecting shaft (12), a connecting shaft (12) is fixedly connected to one side of the baffle (3), the connecting shaft (12) is slidably connected to the pressing plate (10) and movably connected to the rubber (11), a limiting plate (13) is fixedly connected to one end of the connecting shaft (12), and the limiting plate (13) is fixedly connected to the rubber (11).

4. The PVC steel wire reinforced hose compression testing device according to claim 3, characterized in that: The sealing mechanism also includes a connecting pipe (14), and the baffle (3) has an air injection groove that communicates with the sliding groove. The side of the baffle (3) away from the hose (7) and located at the air injection groove is connected to the connecting pipe (14), and the other end of the connecting pipe (14) is connected to the pressure measuring cylinder (2).

5. The PVC steel wire reinforced hose compression testing device according to claim 4, characterized in that: Both clamping mechanisms include a set of sliding blocks (16). The top of the base (1) and one side of the baffle (3) are provided with a second slide groove (15). A set of sliding blocks (16) is slidably connected in both second slide grooves (15). A clamping claw (17) is fixedly connected to the top of each set of sliding blocks (16). A double threaded shaft (18) is threaded through the outer wall of each set of sliding blocks (16). A rotating rod (19) is fixedly connected to both ends of the double threaded shaft (18).

6. The PVC steel wire reinforced hose compression testing device according to claim 5, characterized in that: It also includes a plug plate (6), and several slots (5) are opened in the two first slide grooves (4) at the top of the base (1). The plug plate (6) is symmetrically fixed to the bottom of the baffle (3), and the plug plate (6) can be inserted into the slot (5).

Images