Abrasion tester for building fire hose

Abstract

The utility model discloses a building fire hose wear resistance testing machine, relates to the fire protection testing machine technical field, and comprises an assembly plate, the left side and the right side of the upper part of the outer surface of the assembly plate are both fixedly provided with support frames, the opposite sides of the surfaces of the support frames are both fixedly provided with flanges, and the middle part of the left flange is fixedly provided with a water inlet pipe in a penetrating manner; and a drainage valve pipe is fixedly arranged in the middle of the right flange in a penetrating mode, a water hose body is fixedly arranged in the middle of the opposite side of the surface of the flanges through bolts, a mounting frame is fixedly arranged in the middle of the upper portion of the surface of the assembling plate, and an adjusting mechanism is arranged in the mounting frame. Compared with an existing common building fire hose wear resistance testing machine, the building fire hose wear resistance testing machine has the advantages that the adjusting mechanism can drive the grinding mechanism to continuously move downwards, the pressure of the grinding mechanism on the surface of the hose body is increased, and therefore the wear resistance of the hose body under different pressure degrees can be tested according to requirements; and the test result is more accurate and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of fire testing machines, in particular to a building fire hose wear-resistance testing machine. Background Art

[0002] A fire hose is a flexible pipe used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses are lined with rubber and covered with woven linen. Advanced fire hoses are made of polymer materials such as polyurethane. There are metal connectors at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the pressure of the liquid spray.

[0003] For example, the public document with application number 202121888018.1 discloses a fire hose wear tester. The utility model cooperates with the fixing plate and the fixing groove to fix the motor vertically or horizontally, thereby controlling the placement direction of the circular grinding disc, and then adjusting the horizontal or vertical rotation of the grinding disc, changing the contact and friction mode with the fire hose, and then adjusting different wear resistance modes to conduct multi-directional wear resistance experiments. It has a wide range of applications. However, when testing the water hose, the fire hose wear tester keeps the friction pressure balanced and consistent during the test. In actual use, the pressure borne by the water hose varies depending on the usage scenario, and it is difficult to perform wear resistance tests on the water hose under different pressures. This will cause the water hose to be dragged in different scenarios or under the pressure of objects, which may cause wear and rupture, resulting in a situation where the actual use is inconsistent with the test results, affecting the comprehensiveness and accuracy of the test results.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a building fire hose wear-resistant testing machine is proposed. Utility Model Content

[0005] The utility model aims to provide a building fire hose wear tester to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building fire hose wear-resistance testing machine, comprising an assembly plate, support frames are fixedly arranged on both sides above the outer surface of the assembly plate, flanges are fixedly arranged on the opposite side of the surface of the support frame, and a water inlet pipe is fixedly arranged through the middle of the left flange, a drain valve pipe is fixedly arranged through the middle of the right flange, a water hose body is fixedly arranged in the middle of the opposite side of the surface of the flange by bolts, a mounting frame is fixedly arranged in the middle above the surface of the assembly plate, an adjustment mechanism is arranged inside the mounting frame, a locking mechanism is arranged above the mounting frame, and a grinding mechanism is arranged on the front side of the mounting frame.

[0007] Preferably, the adjustment mechanism comprises a screw rod rotatably arranged in the middle of the inner surface of the vertical plate of the mounting frame, and slide grooves are provided on the left and right sides of the screw rod on the inner surface of the mounting frame, and an adjustment block is threadedly connected to the surface of the screw rod.

[0008] Preferably, the adjustment mechanism further comprises sliding blocks fixedly mounted on both left and right sides of the surface of the adjustment block, and the sliding blocks are slidably arranged inside the slide groove, and the upper end of the screw rod passes through the mounting frame and is fixedly mounted with a hand wheel.

[0009] Preferably, the locking mechanism comprises positioning holes evenly distributed above the outer surface of the mounting frame and around the position where the screw rod passes through, and latches are inserted into the interior of the positioning holes.

[0010] Preferably, the locking mechanism further comprises a fixing plate fixedly mounted on the surface of the latch, a spring is fixedly arranged above the surface of the fixing plate, and the upper end of the latch slides through the hand wheel.

[0011] Preferably, the grinding mechanism comprises a protective cover fixedly mounted at the front end of the adjusting block, and two pulleys are rotatably provided on the front and rear sides of the inner surface of the protective cover.

[0012] Preferably, the grinding mechanism also includes a grinding belt sleeved between the pulleys, and the left end of the front pulley is connected to a drive motor via a transmission rod, and the drive motor is fixed to the protective cover.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can test the wear resistance of the hose body under different pressure levels according to the needs through the arrangement of the adjustment mechanism, the screw rod, the slide groove, the adjustment block, the slider and the hand wheel, so that the test result is more accurate and reliable, and the friction position can be flexibly adjusted according to the hose body of different diameters;

[0015] 2. The utility model arranges a locking mechanism, a positioning hole, a latch, a fixing plate and a spring, and the latch is inserted into the positioning hole at the nearest corresponding point, thereby fixing the handwheel, that is, positioning the entire adjusting mechanism, to avoid secondary rotation of the handwheel caused by external force, which affects the stability of the adjusting mechanism in adjusting the position of the grinding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the grinding mechanism, the mounting frame and the adjusting mechanism of the utility model;

[0018] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the split structure of the hose body and flange of the utility model.

[0020] In the figure: 1. assembly plate; 2. support frame; 3. flange; 4. water inlet pipe; 5. drain valve pipe; 6. hose body; 7. mounting frame; 8. adjustment mechanism; 801. screw rod; 802. slide groove; 803. adjustment block; 804. slider; 805. hand wheel; 9. locking mechanism; 901. positioning hole; 902. latch; 903. fixing plate; 904. spring; 10. grinding mechanism; 1001. protective cover; 1002. pulley; 1003. grinding belt; 1004. driving motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 4 As shown, a building fire hose wear tester comprises an assembly plate 1, support frames 2 are fixedly arranged on both left and right sides above the outer surface of the assembly plate 1, flanges 3 are fixedly arranged on the opposite side of the surface of the support frame 2, and a water inlet pipe 4 is fixedly arranged through the middle of the left flange 3, a drainage valve pipe 5 is fixedly arranged through the middle of the right flange 3, a water hose body 6 is fixedly arranged on the middle of the opposite side of the surface of the flange 3 by bolts, a mounting frame 7 is fixedly arranged on the middle of the upper surface of the assembly plate 1, an adjusting mechanism 8 is arranged inside the mounting frame 7, a locking mechanism 9 is arranged above the mounting frame 7, and a grinding mechanism 10 is arranged on the front side of the mounting frame 7.

[0023] By adopting the above technical solution, the flange 3 can fix the hose body 6 with bolts, and water can be injected into the hose body 6 through the water inlet pipe 4 to make the hose body 6 expand and bulge, so as to effectively fit with the grinding mechanism 10 for testing. After the test is completed, the water inside the hose body 6 can be discharged through the drain valve pipe 5;

[0024] The adjusting mechanism 8 can drive the grinding mechanism 10 to fit the surface of the hose body 6 well for wear resistance test according to the hose body 6 with different expansion bulge diameters, and can drive the grinding mechanism 10 to move downward continuously, increasing the pressure of the grinding mechanism 10 on the surface of the hose body 6, so as to test the wear resistance of the hose body 6 under different pressure levels according to the needs;

[0025] The locking mechanism 9 positions the entire adjusting mechanism 8 to prevent the adjusting mechanism 8 from loosening and causing the grinding mechanism 10 to move, thereby affecting the accuracy of the wear resistance test.

[0026] Furthermore, the adjustment mechanism 8 includes a screw rod 801 rotatably arranged in the middle of the inner surface of the vertical plate of the mounting frame 7, and a slide groove 802 is provided on the left and right sides of the screw rod 801 on the inner surface of the mounting frame 7. The surface of the screw rod 801 is threadedly connected with an adjustment block 803. The adjustment mechanism 8 also includes a slider 804 fixedly installed on the left and right sides of the surface of the adjustment block 803, and the slider 804 is slidably arranged inside the slide groove 802, and the upper end of the screw rod 801 passes through the mounting frame 7 and is fixedly installed with a handwheel 805.

[0027] By adopting the above technical solution, the handwheel 805 facilitates manual rotation of the screw rod 801, and the slide groove 802 limits the slider 804. When the screw rod 801 rotates, the adjustment block 803 does not rotate with the screw rod 801, but is pushed up and down by the thread to adjust the position of the grinding mechanism 10.

[0028] Furthermore, the locking mechanism 9 includes positioning holes 901 evenly distributed above the outer surface of the mounting frame 7 around the position where the screw rod 801 passes through, and a latch 902 is inserted inside the positioning hole 901. The locking mechanism 9 also includes a fixing plate 903 fixedly installed on the surface of the latch 902, a spring 904 is fixedly arranged above the surface of the fixing plate 903, and the upper end of the latch 902 slides through the handwheel 805.

[0029] By adopting the above technical solution, the upper end of the latch 902 passes through the hand wheel 805 and the lower end is located in the positioning hole 901 at the nearest corresponding point, thereby being able to lock the hand wheel 805 to avoid secondary adjustment of the adjustment mechanism 8;

[0030] The fixing plate 903 can prevent the latch 902 from moving up too much and falling off the hand wheel 805 , and also transmit the elastic force of the spring 904 .

[0031] Furthermore, the grinding mechanism 10 includes a protective cover 1001 fixedly installed at the front end of the adjustment block 803, and two pulleys 1002 are rotatably provided on the front and rear sides of the inner surface of the protective cover 1001.

[0032] By adopting the above technical solution, the protective cover 1001 is assembled with the entire mechanism parts, and the protective cover itself is connected to the adjustment block 803, so it can follow the movement of the adjustment block 803 to adjust the entire grinding mechanism 10.

[0033] Furthermore, the grinding mechanism 10 also includes a grinding belt 1003 sleeved between the pulleys 1002 , and the left end of the front pulley 1002 is connected to a driving motor 1004 via a transmission rod, and the driving motor 1004 is fixed to the protective cover 1001 .

[0034] By adopting the above technical solution, the driving motor 1004 rotates the front pulley 1002, and then under the transmission of the grinding belt 1003, the rear pulley 1002 is also rotated. The grinding belt 1003 continuously circulates and moves to adhere to the surface of the water hose body 6 for wear resistance testing.

[0035] Working principle: When using the building fire hose wear tester, first, the two ends of the hose body 6 are fixedly connected to the flanges 3 on both sides by bolts, and then water is injected into the hose body 6 through the water inlet pipe 4 to make the hose body 6 expand and bulge. Then, according to the position of the hose body 6, first pull the pin 902 out of the positioning hole 901, and then turn the hand wheel 805 to rotate the screw rod 801. Under the limit of the slide 802 on the adjusting block 803 through the slider 804, the adjusting block 803 is moved by the thread pushing force, driving the protective cover 1001 to move. The protective cover 1001 drives the entire pulley 1002, the grinding belt 1003 and the drive motor 1004 to adjust and move synchronously, so that the grinding belt 1003 fits the hose body 6. When the adjusting mechanism 8 makes the grinding belt 1003 fit the hose body 6, the pin 902 is released, and the spring 90 4, the latch 902 is pushed downward by the fixing plate 903 and inserted into the positioning hole 901 at the nearest corresponding point, thereby fixing the hand wheel 805, that is, fixing the entire adjusting mechanism 8, fixing the fitting position of the grinding belt 1003, and then starting the driving motor 1004, the driving motor 1004 rotates the front pulley 1002, and then under the transmission of the grinding belt 1003, the rear pulley 1002 is also rotated, and the grinding belt 1003 continuously moves in a cycle, fits the surface of the hose body 6 and moves and grinds for wear resistance testing, and in the test, the adjusting mechanism 8 can drive the grinding mechanism 10 to move downward continuously, increase the pressure of the grinding mechanism 10 on the surface of the hose body 6, so that the wear resistance of the hose body 6 under different pressure levels can be tested according to demand. This is the working principle of the building fire hose wear resistance testing machine.

Claims

1. A building fire hose wear tester, comprising a mounting plate (1), characterized in that: Support frames (2) are fixedly arranged on both left and right sides above the outer surface of the assembly plate (1); flanges (3) are fixedly arranged on the opposite side of the surface of the support frame (2); a water inlet pipe (4) is fixedly arranged through the middle of the left flange (3); a drain valve pipe (5) is fixedly arranged through the middle of the right flange (3); a water hose body (6) is fixedly arranged on the middle of the opposite side of the surface of the flange (3) by means of bolts; a mounting frame (7) is fixedly arranged on the middle of the upper surface of the assembly plate (1); an adjusting mechanism (8) is arranged inside the mounting frame (7); a locking mechanism (9) is arranged above the mounting frame (7); and a grinding mechanism (10) is arranged on the front side of the mounting frame (7).

2. The building fire hose wear tester according to claim 1 is characterized in that: The adjustment mechanism (8) comprises a screw rod (801) rotatably arranged in the middle of the inner surface of the vertical plate body of the mounting frame (7), and sliding grooves (802) are provided on the left and right sides of the screw rod (801) on the inner surface of the mounting frame (7), and an adjustment block (803) is threadedly connected to the surface of the screw rod (801).

3. The building fire hose wear tester according to claim 1 is characterized in that: The adjustment mechanism (8) further comprises sliders (804) fixedly mounted on both left and right sides of the surface of the adjustment block (803), and the sliders (804) are slidably arranged inside the slide groove (802), and the upper end of the screw rod (801) passes through the mounting frame (7) and is fixedly mounted with a hand wheel (805).

4. The building fire hose wear tester according to claim 1, characterized in that: The locking mechanism (9) comprises positioning holes (901) uniformly distributed around the portion through which the screw rod (801) passes above the outer surface of the mounting frame (7), and a latch pin (902) is inserted into the interior of the positioning hole (901).

5. The building fire hose wear tester according to claim 1 is characterized in that: The locking mechanism (9) further comprises a fixing plate (903) fixedly mounted on the surface of the latch (902), a spring (904) being fixedly arranged above the surface of the fixing plate (903), and the upper end of the latch (902) slidingly passes through the hand wheel (805).

6. The building fire hose wear tester according to claim 1, characterized in that: The grinding mechanism (10) comprises a protective cover (1001) fixedly mounted at the front end of the adjusting block (803), and two pulleys (1002) are rotatably arranged on the front and rear sides of the inner surface of the protective cover (1001).

7. The building fire hose wear tester according to claim 1, characterized in that: The grinding mechanism (10) further comprises a grinding belt (1003) sleeved between the pulleys (1002), and the left end of the front pulley (1002) is connected to a driving motor (1004) via a transmission rod, and the driving motor (1004) is fixed to the protective cover (1001).

Images