Abrasion resistance testing machine for fire hose

Abstract

The utility model relates to the technical field of fire hoses, and discloses a fire hose wear resistance testing machine which comprises a base, a second supporting plate and electric cylinders, the second supporting plate is installed on the left side of the upper portion of the base, the electric cylinders are installed on the two sides in the second supporting plate, a first supporting plate is installed above the electric cylinders, and the first supporting plate is installed above the first supporting plate. A rotating device is connected to the outer side of the first supporting plate, a fixing device is installed on the inner side of the second supporting plate and comprises a servo motor, a second fixing column and a second fixing plate, the servo motor is installed in the middle of the left wall of the second supporting plate, and the second fixing column is installed on the outer side of the servo motor; the second fixing column penetrates through the second supporting plate and is fixedly connected with the second fixing plate, and a fixing groove is formed in the second fixing plate; the device can fix the water hose more automatically, manual operation is reduced, and it is ensured that the water hose is stably fixed.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to a fire hose abrasion resistance testing machine. Background Technology

[0002] Fire hoses are flexible tubes used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and an outer surface covered with flax woven fabric. Advanced fire hoses are made of polymer materials such as polyurethane. Both ends of the fire hose have metal joints, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure. Since the environment in which fire hoses are used is not fixed, they may be dragged and laid on surfaces with high friction such as cement, gravel, crushed stone, and stairwells. Therefore, their abrasion resistance must be tested during production.

[0003] Existing fire hose abrasion resistance testing machines generally have the following problems: First, manually fixing the hose is time-consuming and labor-intensive, requiring operators to manually fix both sides of the hose, which is complicated and reduces testing efficiency; second, the fixing process may not be stable enough, affecting the accuracy and repeatability of the test results. In order to address the above issues, we propose a fire hose abrasion resistance testing machine. Utility Model Content

[0004] The purpose of this invention is to provide an abrasion resistance testing machine for fire hoses to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an abrasion resistance testing machine for fire hoses, comprising a base, a second support plate, and an electric cylinder. The second support plate is installed on the left side above the base, and electric cylinders are installed on both sides inside the second support plate. A first support plate is installed above the electric cylinders. A rotating device is connected to the outer side of the first support plate, and a fixing device is installed on the inner side of the second support plate.

[0006] The fixing device includes a servo motor, a second fixing column, and a second fixing plate. The servo motor is installed in the middle of the left wall of the second support plate. The second fixing column is installed on the outside of the servo motor. The second fixing column passes through the second support plate and is fixedly connected to the second fixing plate. The second fixing plate has a fixing groove inside. A partition is installed inside the fixing groove. A spring is installed above the partition. The spring is sleeved on the outside of the third fixing column. The lower part of the third fixing column passes through the partition and is connected to a connecting plate. The right side of the connecting plate passes through a sliding groove and is connected to an extrusion plate. The sliding groove is located inside the second fixing plate. A first baffle is installed on the right wall of the second fixing plate. Connecting columns are installed on the upper and lower sides of the right wall of the first baffle. A second baffle is installed on the right side of the outer wall of the connecting column.

[0007] Preferably, the rotating device includes a first motor and a first fixed column. The first motor is installed on the left side of the first support plate, and the first fixed column is installed on the right side of the first motor. The right side of the first fixed column passes through the first support plate and is connected to the mounting base. A grinding block is installed on the outer wall of the mounting base, and a threaded groove is provided on the inner side of the mounting base. The first fixed plate is threadedly connected to the inside of the threaded groove.

[0008] Preferably, the base and the second support plate are arranged perpendicularly to each other, the electric cylinder is fixedly connected to the first support plate, the output end of the first motor is fixedly connected to the left side of the first fixed column, and the mounting seat and the grinding block are correspondingly arranged.

[0009] Preferably, the right side of the mounting base is cross-shaped, and the threaded groove is threadedly connected to the first fixing plate.

[0010] Preferably, the output end of the servo motor is fixedly connected to the second fixed column, and the second fixed column is fixedly connected to the second fixed plate.

[0011] Preferably, the second fixing plate and the fixing groove are integrated, and the partition plate and the second fixing plate are fixedly connected.

[0012] Preferably, the third fixed column and the connecting plate are arranged perpendicularly to each other, and the connecting plate and the sliding groove are slidably connected.

[0013] Preferably, the chute and the second fixing plate are integrally formed, and the connecting plate and the extrusion plate are fixedly connected.

[0014] Preferably, the extrusion plate is arc-shaped, the first baffle is fixedly connected to the connecting column, and the connecting column is fixedly connected to the second baffle.

[0015] Preferably, the middle position of the second baffle, the middle position of the second fixed column, and the middle position between the two connecting columns are on the same horizontal line.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] By setting up a servo motor, a second fixed column, and a second fixed plate, the fire hose is placed between the first and second baffles, above the lower compression plate. Then, the servo motor is started via the central controller, driving the second fixed column to rotate. Since the second fixed column is fixedly connected to the second fixed plate, the second fixed plate rotates accordingly. A first baffle is installed on the right wall of the second fixed plate, and multiple connecting columns are fixedly connected to the upper and lower sides of the first baffle. The outer wall of the connecting columns is fixed with the second baffle. The connecting columns are the components that actually wind the fire hose; they form a U-shaped clamping structure with the first and second baffles and rotate together with the second fixed plate. The fire hose, constrained and guided by the first and second baffles, automatically and neatly winds around the outer wall of the connecting columns, preventing the hose from becoming skewed during winding. Meanwhile, as the thickness of the hose winding increases, the spring pushes the connecting plate through the partition and the third fixed column, causing the extrusion plate to continuously apply outward elastic pressure, ensuring that the hose remains firmly fixed during the winding process, achieving automation and high efficiency in hose fixing. When wear testing is required, the central controller instructs the cylinder to extend the piston rod, pushing the first support plate to descend smoothly. Through the pressure sensor below the first support plate, when the grinding block contacts the hose surface and reaches the preset pressure, the pressure sensor feeds back the signal to the central controller, controlling the cylinder to stop descending, achieving precise contact pressure control. The central controller coordinates the start of the first motor, driving the first fixed column and mounting base to rotate, so that the grinding block performs a friction test on the hose. By adjusting the rotation speed, pressure, and test time of the grinding block, the dragging wear conditions on different surfaces are simulated. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a side view sectional structural diagram of the present invention;

[0021] Figure 3 This is a top view sectional structural diagram of the present invention;

[0022] Figure 4 This is a partial side view of the fixing device of this utility model;

[0023] Figure 5This is a circuit block diagram of the present invention.

[0024] In the diagram: 1. Base; 2. Electric cylinder; 3. First support plate; 4. Fixing device; 5. First motor; 6. First fixing column; 7. Mounting seat; 8. Threaded groove; 9. First fixing plate; 10. Grinding block; 11. Second support plate; 401. Servo motor; 402. Second fixing column; 403. Second fixing plate; 404. Fixing groove; 405. Third fixing column; 406. Connecting plate; 407. Slide groove; 408. Extrusion plate; 409. Spring; 410. First baffle; 411. Connecting column; 412. Second baffle; 413. Partition. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1-5This utility model provides a technical solution for a fire hose abrasion resistance testing machine: a fire hose abrasion resistance testing machine includes a base 1, a second support plate 11 and an electric cylinder 2. The second support plate 11 is installed on the left side above the base 1. The electric cylinder 2 is installed on both sides inside the second support plate 11. A first support plate 3 is installed above the electric cylinder 2. A rotating device is connected to the outside of the first support plate 3. A fixing device 4 is installed on the inside of the second support plate 11.

[0029] The fixing device 4 includes a servo motor 401, a second fixing post 402, and a second fixing plate 403. The servo motor 401 is installed at the middle position of the left wall of the second support plate 11. The second fixing post 402 is installed on the outside of the servo motor 401. The second fixing post 402 passes through the second support plate 11 and is fixedly connected to the second fixing plate 403. The second fixing plate 403 has a fixing groove 404 inside, and a partition 413 is installed inside the fixing groove 404. A spring 40 is installed above the partition 413. 9. Spring 409 is sleeved on the outside of third fixed post 405. The lower part of third fixed post 405 is connected to connecting plate 406 through partition plate 413. The right side of connecting plate 406 is connected to extrusion plate 408 through slide groove 407. Slide groove 407 is located inside second fixed plate 403. First baffle 410 is installed on the right wall of second fixed plate 403. Connecting post 411 is installed on the upper and lower sides of the right wall of first baffle 410. Second baffle 412 is installed on the right side of the outer wall of connecting post 411.

[0030] The rotating device includes a first motor 5 and a first fixed column 6. The first motor 5 is installed on the left side of the first support plate 3, and the first fixed column 6 is installed on the right side of the first motor 5. The right side of the first fixed column 6 passes through the first support plate 3 and is connected to the mounting base 7. A grinding block 10 is installed on the outer wall of the mounting base 7. A threaded groove 8 is provided on the inner side of the mounting base 7. The first fixed plate 9 is threadedly connected inside the threaded groove 8. The axial position of the first fixed plate 9 can be adjusted through the threaded groove 8.

[0031] The base 1 and the second support plate 11 are perpendicular to each other. The electric cylinder 2 is fixedly connected to the first support plate 3. A pressure sensor is provided below the first support plate 3. The pressure sensor and the electric cylinder 2 are electrically connected to the central controller. The output end of the first motor 5 is fixedly connected to the left side of the first fixed column 6. The mounting base 7 and the grinding block 10 are correspondingly arranged. The grinding block 10 is fixedly connected to the mounting base 7 in a detachable manner.

[0032] The right side of the mounting base 7 is cross-shaped, and the threaded groove 8 is threadedly connected to the first fixing plate 9.

[0033] The output end of the servo motor 401 is fixedly connected to the second fixed column 402. The servo motor 401 is electrically connected to the central controller. The second fixed column 402 is fixedly connected to the second fixed plate 403. The electric cylinder 2 is electrically connected to the central controller.

[0034] The second fixing plate 403 and the fixing groove 404 are integrated, and the partition plate 413 and the second fixing plate 403 are fixedly connected.

[0035] The third fixed column 405 and the connecting plate 406 are set perpendicular to each other, and the connecting plate 406 and the slide groove 407 are slidably connected.

[0036] The slide 407 and the second fixed plate 403 are integrated, and the connecting plate 406 and the extrusion plate 408 are fixedly connected.

[0037] The extrusion plate 408 is arc-shaped. The first baffle 410 is fixedly connected to the connecting post 411, and the connecting post 411 is fixedly connected to the second baffle 412.

[0038] The middle positions of the second baffle 412, the second fixed post 402, and the middle positions between the two connecting posts 411 are on the same horizontal line.

[0039] Working principle:

[0040] First, the fire hose is placed between the first baffle 410 and the second baffle 412, above the lower compression plate 408. Then, the servo motor 401 is started via the central controller, driving the second fixing post 402 to rotate. Since the second fixing post 402 is fixedly connected to the second fixing plate 403, the second fixing plate 403 rotates accordingly. The first baffle 410 is installed on the right wall of the second fixing plate 403, and multiple connecting posts 411 are fixedly connected to the upper and lower sides of the first baffle 410. The outer wall of the connecting post 411 is fixed with the second baffle 412. The connecting post 411 is the component that actually winds the fire hose; it forms a U-shaped clamping structure with the first baffle 410 and the second baffle 412, and rotates together with the second fixing plate 403. The fire hose, restricted and guided by the first baffle 410 and the second baffle 412, automatically and neatly winds around the outer wall of the connecting post 411, preventing the fire hose from tilting during winding. Meanwhile, as the thickness of the water hose increases, the spring 409 pushes the connecting plate 406 through the partition 413 and the third fixed column 405, so that the extrusion plate 408 continuously applies outward elastic pressure to ensure that the water hose is always firmly fixed during the winding process, realizing the automation and high efficiency of water hose fixing. When wear testing is required, the central controller instructs the cylinder 2 to extend the piston rod and push the first support plate 3 to descend smoothly. Through the pressure sensor under the first support plate 3, when the grinding block 10 contacts the water hose surface and reaches the preset pressure, the pressure sensor feeds the signal back to the central controller, controlling the cylinder 2 to stop descending, realizing precise contact pressure control. The central controller coordinates the start of the first motor 5, driving the first fixed column 6 and the mounting base 7 to rotate, so that the grinding block 10 performs friction testing on the water hose. By adjusting the rotation speed, pressure and test time of the grinding block 10, the drag wear conditions of different ground surfaces are simulated.

[0041] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An abrasion resistance testing machine for fire hoses, comprising a base (1), a second support plate (11), and an electric cylinder (2), characterized in that: A second support plate (11) is installed on the left side above the base (1). Electric cylinders (2) are installed on both sides inside the second support plate (11). A first support plate (3) is installed above the electric cylinders (2). A rotating device is connected to the outside of the first support plate (3). A fixing device (4) is installed on the inside of the second support plate (11). The fixing device (4) includes a servo motor (401), a second fixing column (402), and a second fixing plate (403). The servo motor (401) is installed in the middle of the left wall of the second support plate (11). The second fixing column (402) is installed on the outside of the servo motor (401). The second fixing column (402) passes through the second support plate (11) and is fixedly connected to the second fixing plate (403). The second fixing plate (403) has a fixing groove (404) inside. A partition (413) is installed inside the fixing groove (404). A spring (404) is provided above the partition (413). 9) The spring (409) is sleeved on the outside of the third fixed post (405). The lower part of the third fixed post (405) is connected to the connecting plate (406) through the partition plate (413). The right side of the connecting plate (406) is connected to the extrusion plate (408) through the sliding groove (407). The sliding groove (407) is located on the inner side of the second fixed plate (403). The right wall of the second fixed plate (403) is equipped with a first baffle (410). The upper and lower sides of the right wall of the first baffle (410) are equipped with connecting posts (411). The right side of the outer wall of the connecting post (411) is equipped with a second baffle (412).

2. The abrasion resistance testing machine for fire hoses according to claim 1, characterized in that: The rotating device includes a first motor (5) and a first fixed column (6). The first motor (5) is installed on the left side of the first support plate (3), and the first fixed column (6) is installed on the right side of the first motor (5). The right side of the first fixed column (6) passes through the first support plate (3) and is connected to the mounting base (7). A grinding block (10) is installed on the outer wall of the mounting base (7). A threaded groove (8) is provided on the inner side of the mounting base (7). The first fixed plate (9) is threadedly connected to the inside of the threaded groove (8).

3. The abrasion resistance testing machine for fire hoses according to claim 2, characterized in that: The base (1) and the second support plate (11) are arranged perpendicularly to each other, the electric cylinder (2) and the first support plate (3) are fixedly connected, the output end of the first motor (5) and the left side of the first fixed column (6) are fixedly connected, and the mounting seat (7) and the grinding block (10) are arranged correspondingly.

4. The abrasion resistance testing machine for fire hoses according to claim 3, characterized in that: The right side of the mounting base (7) is cross-shaped, and the threaded groove (8) is threadedly connected to the first fixing plate (9).

5. The abrasion resistance testing machine for fire hoses according to claim 4, characterized in that: The output end of the servo motor (401) is fixedly connected to the second fixed column (402), and the second fixed column (402) is fixedly connected to the second fixed plate (403).

6. The abrasion resistance testing machine for fire hoses according to claim 5, characterized in that: The second fixing plate (403) and the fixing groove (404) are integrated, and the partition plate (413) and the second fixing plate (403) are fixedly connected.

7. The abrasion resistance testing machine for fire hoses according to claim 6, characterized in that: The third fixed column (405) and the connecting plate (406) are arranged perpendicularly to each other, and the connecting plate (406) and the sliding groove (407) are slidably connected.

8. The abrasion resistance testing machine for fire hoses according to claim 7, characterized in that: The chute (407) and the second fixing plate (403) are integrated, and the connecting plate (406) and the pressing plate (408) are fixedly connected.

9. The abrasion resistance testing machine for fire hoses according to claim 8, characterized in that: The extrusion plate (408) is arc-shaped, the first baffle (410) is fixedly connected to the connecting column (411), and the connecting column (411) is fixedly connected to the second baffle (412).

10. The abrasion resistance testing machine for fire hoses according to claim 9, characterized in that: The middle position of the second baffle (412), the middle position of the second fixed column (402), and the middle position between the two connecting columns (411) are on the same horizontal line.

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