A fire hose wear detection device

Abstract

The present invention provides a fire hose wear-resistant detection device, which belongs to the field of fire hose detection technology. It comprises a support frame, a detection platform is provided on the support frame, a mounting frame is fixedly connected to the bottom of the detection platform, a friction device is connected to the top of the mounting frame, rotating bearings are fixedly connected to both ends of the mounting frame, a driven clamping device and an active clamping device are respectively connected to the two rotating bearings, and a fire hose is connected to the driven clamping device and the active clamping device. The present invention sets an active clamping device, and the tension unit cooperates with the extrusion unit. When the fire hose is rotated to fit with the friction device, the top of the fire hose to be tested is stretched, so that the position where the fire hose and the friction device meet is in a horizontal position, so as to avoid downward deviation under the gravity of the internal water flow, resulting in the friction device not being tightly attached to the friction surface of the fire hose, resulting in inaccurate test data.

Description

Technical Field

[0001] The invention relates to the technical field of fire hose detection, and in particular to a fire hose wear resistance detection device. Background Art

[0002] A fire hose is a hose used to transport flame-retardant liquids such as high-pressure water or foam. The fire hose is made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or connected to a nozzle to increase the liquid injection pressure. The fire hose needs to be tested for wear resistance using a fire hose wear tester to ensure that the fire hose meets the standards.

[0003] The fire hose wear tester is a device used to test the wear resistance of fire hoses. It can simulate the friction between the hose and the ground or other surfaces during actual use, and test whether the hose is easy to wear in long-term use, thereby ensuring the reliability and durability of the fire hose in emergency situations such as fire fighting.

[0004] When testing the fire hose, the existing fire hose wear tester injects water into the interior to the required pressure. Since the two ends of the fire hose are fixed, the friction surface between the friction device and the fire hose is located in the middle top position of the fire hose. The fire hose will deviate downward under the gravity of the internal water, and there is a loose fit with the friction device, resulting in uneven friction and inability to accurately reflect the wear resistance of the hose. At the same time, the loose hose may produce unnecessary stretching or swinging during the test, which will cause additional load on the test equipment, which may damage the equipment or shorten its service life. Therefore, the present application provides a fire hose wear detection device to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a fire hose wear resistance detection device to solve the problem that when the existing fire hose wear resistance testing machine is testing the fire hose, water is injected into the interior to the required pressure. Since the two ends of the fire hose are fixed, the friction surface between the friction device and the fire hose is located at the middle top position of the fire hose. The fire hose will shift downward under the gravity of the internal water, and there is a situation that the fit with the friction device is not tight, resulting in uneven friction force, and it is impossible to accurately reflect the wear resistance of the hose. At the same time, the loose hose may produce unnecessary stretching or swinging during the test, thereby causing additional load on the test equipment, which may damage the equipment or shorten its service life.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A fire hose wear detection device, comprising a supporting frame, a detection platform is provided on the supporting frame, a mounting frame is fixedly connected to the bottom of the detection platform, a friction device is connected to the top of the mounting frame, two ends of the mounting frame are fixedly connected to rotating bearings, a driven clamping device and an active clamping device are respectively connected to the two rotating bearings, a fire hose is connected to the driven clamping device and the active clamping device, and a driving device is fixedly connected to the bottom of the detection platform; the active clamping device comprises a rotating block fixedly connected to the inner ring of the rotating bearing, a rotating drum unit is connected to one side of the rotating block, a tension unit is connected to the outer wall of the rotating drum unit, a second sleeve is fixedly connected to the side surface wall of the mounting frame close to the rotating bearing, a first sleeve is connected inside the second sleeve, a squeezing unit is connected to the top of the tension unit of the first sleeve, and one side of the rotating block is fixedly connected to the output end of the driving device; and also includes a tight structure for the rotating drum unit to fix the fire hose.

[0008] Optionally, the rotating drum unit includes a first threaded rod fixedly connected to the rotating block, one end of the first threaded rod is fixedly connected to a rotating drum, an end of the rotating drum away from the first threaded rod is provided with a hexagonal hole, and one end of the rotating drum is provided with a water hose groove; and also includes a sliding structure for the tensioning unit to slide on the rotating drum unit.

[0009] Optionally, the tensioning unit includes a push belt group slidably connected to the surface wall of the rotating drum, the push belt group is composed of a plurality of sliding strips evenly distributed in a ring shape; the sliding strip is composed of a deformation section, a sliding section and a third guide section connected in sequence and fixedly connected, the two ends of the sliding section are respectively fixedly connected to the deformation section and the third guide section, and one end of the deformation section is fixedly connected to the surface wall of one end of the rotating drum; the deformation section is an elastic structure, and the third guide section is an outwardly convex cylindrical structure.

[0010] Optionally, the sliding structure includes a sliding block fixedly connected to the inner wall of the sliding bar, and the sliding block is provided with a penetrating sliding hole; the outer wall of the rotating drum is provided with a sliding groove corresponding to the position of the sliding block, and the sliding groove and the sliding block are adapted to each other, and the inner ends of the sliding groove are fixedly connected to a first sliding rod, and the outer wall of the first sliding rod is provided with a return spring; the sliding block is sleeved on the outer wall of the first sliding rod through the sliding hole, one end of the return spring is fixedly connected to one side of the sliding block, and the other end is fixedly connected to one end of the inner wall of the sliding groove.

[0011] Optionally, the tight structure includes a water hose fixing ring fixedly connected to the inner wall of one end of the rotating drum, the outer surface of the water hose fixing ring is a concave arc structure, and a belt fixing unit is connected to the rotating block; the belt fixing unit includes four second sliding rods slidably connected to the rotating block, and every two adjacent second sliding rods are distributed at 90°, and the two ends of the second sliding rods are respectively fixedly connected with a water driving ring and a connecting disk, the surface of the water driving ring is adapted to the water hose fixing ring, and a rubber ring is fixedly connected to the corresponding position of the water driving ring and the water hose fixing ring, and two second threaded rods symmetrically distributed are rotatably connected to the connecting disk, and the second threaded rods are fixedly connected to the rotating block; the fire hose is sealed and fixed between the belt fixing unit and the rotating drum through the cooperation of the water driving ring and the water hose fixing ring.

[0012] Optionally, a fixing groove is provided on one side of the second sleeve, and a transfer block groove is provided on the other side, and the fixing groove and the transfer block groove are communicated with each other; the first sleeve is formed by an outer tube and an inner tube fixedly connected, and the outer tube and the inner tube are an integrally formed structure, and a wrapping groove connected with the fixing groove is provided inside the first sleeve.

[0013] Optionally, the inner tube is composed of a smooth section, a first guide section and a second guide section which are fixedly connected in sequence, the first guide section is an outward convex structure, and the second guide section is an inward concave structure; the outer wall of the inner tube is provided with an internal thread, and the outer wall of the fixing groove is provided with an external thread, and the first sleeve and the second sleeve are fixedly connected by the inner tube and the fixing groove.

[0014] Optionally, a matching placement groove is provided at a position of the first sleeve corresponding to the extrusion unit; and a tensioning structure for tightening the fire hose during the detection process is also included.

[0015] Optionally, the tensioning structure includes a rotating connecting rod fixedly connected to the top of the placement groove, the bottom of the rotating connecting rod is fixedly connected to the second extrusion block, the outer wall of the sliding section is fixedly connected to the first extrusion block, and the tip of the first extrusion block is in contact with the tip of the second extrusion block.

[0016] Optionally, the diameter of the wrapping groove is larger than the diameter of the push belt group, and the gap between the inner wall of the wrapping groove and the push belt group is a belt threading seam for inserting the fire hose.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, an active clamping device is provided, and the tensioning unit cooperates with the extrusion unit. When the fire hose is rotated to fit with the friction device, the top of the fire hose to be tested is stretched, so that the junction of the fire hose and the friction device is in a horizontal position, avoiding downward deviation under the gravity of the internal water flow, resulting in the friction device not being close to the friction surface of the fire hose, resulting in inaccurate test data. At the same time, the friction surface of the fire hose is always in a straight state, and the fire hose will not swing.

[0019] By setting the first sleeve and the elastic unit, an annular belt threading seam is formed by the inner wall of the first sleeve and the elastic unit, which is convenient for the insertion of the fire hose. At the same time, the inner wall of the first sleeve guides the fire hose so that it deviates along the direction of the second guide section and enters the hose groove. The insertion method of the fire hose is simple, and the fire hose is sealed by making the water driving ring and the water hose fixed ring fit tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the fire hose wear-resistant detection device;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of the assembly of the driven clamping device, the fire hose and the active clamping device;

[0023] Figure 3 It is a schematic diagram of the cutaway three-dimensional structure of the active clamping device;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the drum unit, the rotating block and the belt fixing unit;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the partially cut-away assembly of the drum unit, the rotating block and the belt fixing unit;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed belt unit;

[0027] Figure 7 A schematic diagram of a three-dimensional structure for assembling the first sleeve and the second sleeve;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the first sleeve and the second sleeve when cut apart and assembled;

[0029] Fig. 9 It is a schematic diagram of the exploded three-dimensional structure of the first sleeve and the second sleeve;

[0030] Fig.10 It is a schematic diagram of the multi-view stereoscopic structure of the tension and looseness unit;

[0031] Fig.11 It is a schematic diagram of the partially cut-away assembly of the tension unit and the drum unit;

[0032] Fig.12 It is a schematic diagram of the three-dimensional structure of the first sleeve and the elastic unit being partially cut and assembled;

[0033] Fig.13 It is a schematic diagram of the three-dimensional structure of the tension unit and the extrusion unit;

[0034] Fig.14 for Fig.13 Schematic diagram of the three-dimensional structure at A in the middle;

[0035] Fig.15 Schematic diagram of the three-dimensional structure of the slider.

[0036] Reference numerals:

[0037] 1. Support frame; 11. Detection platform; 2. Mounting frame; 21. Rotating bearing; 3. Friction device; 4. Driving device; 5. Driven clamping device; 6. Active clamping device; 61. First sleeve; 611. Outer tube; 6111. Placement slot; 612. Inner tube; 6121. Smooth section; 6122. First guide section; 6123. Second guide section; 613. Wrapping slot; 62. Second sleeve; 621. Fixed slot; 622. Turn block slot; 63. Elastic unit; 631. Sliding bar; 6311. Deformation section; 6312. Sliding section; 6313. Third Guide section; 632, first extrusion block; 633, sliding block; 634, sliding hole; 64, rotating drum unit; 641, rotating drum; 642, sliding groove; 643, first sliding rod; 644, return spring; 645, hexagonal hole; 646, first threaded rod; 647, water hose groove; 648, water hose fixed ring; 65, rotating block; 66, fixed belt unit; 661, water driving ring; 662, second sliding rod; 663, connecting plate; 664, second threaded rod; 665, rubber ring; 67, extrusion unit; 671, rotating connecting rod; 672, second extrusion block; 7, fire hose.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of a fire hose wear detection device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 15As shown, an embodiment of the present invention provides a fire hose wear-resistant detection device, including a supporting frame 1, a detection platform 11 is provided on the supporting frame 1, the detection platform 11 is used to provide a mounting position for a mounting frame 2 and a driving device 4, a mounting frame 2 is fixedly connected to the bottom of the detection platform 11, the mounting frame 2 is used to provide a mounting position for a friction device 3, a driven clamping device 5 and an active clamping device 6, the top of the mounting frame 2 is connected to the friction device 3, the two ends of the mounting frame 2 are fixedly connected to rotating bearings 21, and the two rotating bearings 21 are respectively connected to the driven clamping device 5 and the active clamping device 6, wherein the supporting frame 1, the mounting frame 2, the friction device 3, the driving device 4, and the driven clamping device 5 are all prior art, and the driven clamping device 5 is a kind of conventional device. The device 5 and the active clamping device 6 are connected with a fire hose 7, the driven clamping device 5 and the active clamping device 6 cooperate with each other to clamp and fix the fire hose 7, the driven clamping device 5 is connected with an external water pump, and the fire hose 7 is punched by the external water pump, and the water flow inside the fire hose 7 meets the test pressure, and the bottom of the detection platform 11 is fixedly connected with a driving device 4, and the driving device 4 drives the active clamping device 6 to rotate, thereby driving the fire hose 7 connected thereto and the friction device 3 to perform a friction test; the active clamping device 6 includes a rotating block 65 fixedly connected to the inner ring of the rotating bearing 21, and the rotating block 65 is driven to rotate by the rotating bearing 21, thereby driving the rotating drum unit 64 and the fixed belt unit 66 fixed thereon Synchronously rotate, one side of the rotating block 65 is connected to a rotating drum unit 64, the rotating drum unit 64 is used to cooperate with the fixing belt unit 66 to fix the fire hose 7, and at the same time provide an installation position for the tension unit 63, the outer wall of the rotating drum unit 64 is connected to the tension unit 63, the tension unit 63 and the extrusion unit 67 cooperate with each other, when the fire hose 7 is rotated to fit with the friction device 3, the top of the fire hose 7 to be tested is stretched, so that the position of the connection between the fire hose 7 and the friction device 3 is in a horizontal position, avoiding downward deviation under the gravity of the internal water flow, resulting in the friction device 3 not being close to the friction surface of the fire hose 7, making the test data inaccurate, the side wall of the mounting frame 2 close to the rotating bearing 21 A second sleeve 62 is fixedly connected, and the second sleeve 62 is used to provide an installation position for the first sleeve 61. The first sleeve 61 and the second sleeve 62 are detachable, which is convenient for installation and maintenance and repair of the inside. The first sleeve 61 is connected to the second sleeve 62, and the inner wall of the first sleeve 61 cooperates with the elastic unit 63 to form an annular belt threading seam for the insertion of the fire hose 7. At the same time, the inner wall of the first sleeve 61 guides the fire hose 7 to enter the drum unit 64. The first sleeve 61 is connected to an extrusion unit 67 near the top of the elastic unit 63, and one side of the rotating block 65 is fixedly connected to the output end of the driving device 4; it also includes a tight structure for the drum unit 64 to fix the fire hose 7.

[0045] Before conducting the wear test of the fire hose 7, first install the active clamping device 6, install the drum unit 64 on the rotating block 65, install the first sleeve 61 on the second sleeve 62, and then fix the fire hose 7. Insert the fire hose 7 into the belt threading seam. The fire hose 7 entering the belt threading seam extends into the drum unit 64 under the guidance of the inner wall of the first sleeve 61, and then fix the fire hose 7 through the belt fixing unit 66. Then, fix the other end of the fire hose 7 on the driven clamping device 5, and use an external water pump to inject water into the fire hose 7 and pressurize it to the required pressure. Under the operation of the driving device 4, the fire hose 7 is driven to fit and rub against the friction device 3, and then the wear resistance of the fire hose 7 is tested through the friction device 3.

[0046] like Figures 3 to 5 As shown, the rotating drum unit 64 includes a first threaded rod 646 fixedly connected to the rotating block 65, and a first threaded hole adapted to the rotating block 65 is opened at a position corresponding to the first threaded rod 646. The rotating drum 641 and the rotating block 65 are fixedly connected by the first threaded rod 646 and the first threaded hole. One end of the first threaded rod 646 is fixedly connected to the rotating drum 641, and the end of the rotating drum 641 away from the first threaded rod 646 is opened with a hexagonal hole 645. The hexagonal hole 645 is convenient for the staff to fix the rotating drum 641 by an electric drill, and a water hose groove 647 is opened at one end of the rotating drum 641; it also includes a sliding structure for the tensioning unit 63 to slide on the rotating drum unit 64.

[0047] like Figures 3 to 6 As shown, the tight structure includes a hose fixing ring 648 fixedly connected to the inner wall of one end of the rotating drum 641, and the outer surface of the hose fixing ring 648 is a concave arc structure. The concave surface of the arc structure is made of rubber, so that the inner wall of the fire hose 7 and the surface of the hose fixing ring 648 fit more closely. A fixing belt unit 66 is connected to the rotating block 65, and the fixing belt unit 66 is used to cooperate with the hose fixing ring 648 to seal the fire hose 7; the fixing belt unit 66 includes four second sliding rods 662 slidably connected to the rotating block 65, and the rotating block 65 and the four second sliding rods 662 are provided with sliding rod sliding holes corresponding thereto, so that the second sliding rods 662 can slide on the rotating block 65, and every two adjacent second sliding rods can slide on each other. The slide rod 662 is distributed at 90°, and the two ends of the second slide rod 662 are fixedly connected with a water-driven ring 661 and a connecting plate 663 respectively. The surface of the water-driven ring 661 is adapted to the water hose fixed ring 648, and a rubber ring 665 is fixedly connected to the corresponding positions of the water-driven ring 661 and the water hose fixed ring 648. Two second threaded rods 664 distributed symmetrically with each other are rotatably connected to the connecting plate 663. The corresponding positions of the rotating block 65 and the second threaded rod 664 are provided with second threaded holes adapted thereto, and the second threaded rod 664 is fixedly connected to the rotating block 65; the fire hose 7 is sealed and fixed between the belt fixing unit 66 and the rotating drum 641 through the cooperation of the water-driven ring 661 and the water hose fixed ring 648.

[0048] When the fire hose 7 needs to be sealed through a tight structure, the fire hose 7 extends to the hose groove 647 in the drum unit 64 under the guidance of the inner wall of the first sleeve 61, and pushes the second slide rod 662 to drive the water driving ring 661 to slide to fit the surface of the hose fixing ring 648, and then the second threaded rod 664 is screwed to make the water driving ring 661 and the hose fixing ring 648 fit tightly, thereby sealing the fire hose 7.

[0049] like Figure 3 and Figures 10 to 15 As shown, the tension unit 63 includes a push belt group slidably connected to the surface wall of the rotating drum 641, and the push belt group is composed of a plurality of sliding bars 631 evenly distributed in a ring shape. A T-shaped slider is provided on one side of the sliding bar 631, and a T-shaped slide groove adapted to the T-shaped slider is provided on the other side. Every two adjacent sliding bars 631 are slidably connected through the T-shaped slider and the T-shaped slide groove. The plurality of sliding bars 631 can slide independently without affecting the adjacent sliding bars 631. The sliding bar 631 is composed of a deformation section 6311, a sliding section 6312 and a third guide section connected in sequence. The segments 6313 are fixedly connected, the two ends of the sliding segment 6312 are respectively fixedly connected to the deformation segment 6311 and the third guide segment 6313, one end of the deformation segment 6311 is fixedly connected to the surface wall of one end of the rotating drum 641; the deformation segment 6311 is an elastic structure, and a plurality of deformation segments 6311 form a semicircular annular protrusion, which can guide the fire hose 7 and facilitate the staff to insert the fire hose 7. The third guide segment 6313 is an outwardly convex cylindrical structure, and the third guide segment 6313 is used to cooperate with the inside of the inner tube 612 to guide the fire hose 7.

[0050] like Figure 4 , Fig.10 and Fig.11As shown, the sliding structure includes a sliding block 633 fixedly connected to the inner wall of the sliding bar 631, and a sliding hole 634 is provided on the sliding block 633; ​​the outer wall of the rotating cylinder 641 is provided with a sliding groove 642 corresponding to the position of the sliding block 633, and the sliding groove 642 and the sliding block 633 are adapted to each other, and the inner ends of the sliding groove 642 are fixedly connected to the first sliding rod 643, and the outer wall of the first sliding rod 643 is sleeved with a return spring 644; the sliding block 633 is sleeved on the outer wall of the first sliding rod 643 through the sliding hole 634, one end of the return spring 644 is fixedly connected to one side of the sliding block 633, and the other end is fixedly connected to one end of the inner wall of the sliding groove 642, when the first extrusion block 632 on the sliding bar 631 is pressed When the second extrusion block 672 is extruded, since the deformation section 6311 is an elastic structure, it will drive the sliding section 6312 to slide in the extrusion direction under the action of the extrusion force. When sliding, the T-shaped sliders and T-shaped slide grooves on both sides of the sliding section 6312 slide on the Y-shaped slide groove and T-shaped slider of the adjacent sliding section 6312 respectively. At the same time, the sliding block 633 slides on the first slide bar 643 to further limit the sliding direction of the sliding section 6312. When the sliding section 6312 slides, it will drive the third guide section 6313 at the top to squeeze the inner wall of the fire hose 7, thereby stretching it toward the top position of the fire hose 7, so that the friction position of the fire hose 7 is tightly fitted with the friction device 3, thereby making the data of the wear resistance test more accurate.

[0051] like Figure 3 and Figures 7 to 9 As shown, a fixing groove 621 is provided on one side of the second sleeve 62, and the fixing groove 621 is used to install the first sleeve 61, and a rotating block slot 622 is provided on the other side, and the rotating block slot 622 is used for the insertion of the rotating block 65, and its inner diameter is slightly larger than the outer diameter of the rotating block 65, and the fixing groove 621 and the rotating block slot 622 are connected; the first sleeve 61 is formed by an outer tube 611 and an inner tube 612 fixedly connected, and the outer tube 611 and the inner tube 612 are an integrally formed structure, and a wrapping groove 613 connected to the fixing groove 621 is provided inside the first sleeve 61, and the wrapping groove 613 is used for the insertion of the rotating drum unit 64, and the diameter of the wrapping groove 613 is larger than the diameter of the push belt group, thereby forming a belt threading gap between the push belt group and the push belt group for guiding the installation of the fire hose 7.

[0052] The inner tube 612 is formed by a smooth section 6121, a first guide section 6122 and a second guide section 6123 which are fixedly connected in sequence. The first guide section 6122 is an outward convex structure. The outward convex first guide section 6122 is used to reduce the gap of the belt threading seam. The second guide section 6123 is an inward concave structure. The inward concave second guide section 6123 is used to cooperate with the third guide section 6313, so that the top end of the fire hose 7 is deflected along the direction of the second guide section 6123 and enters the hose groove 647 when the fire hose 7 is inserted. The outer wall of the inner tube 612 is provided with an internal thread, and the surface wall of the fixed groove 621 is provided with an external thread. The first sleeve 61 and the second sleeve 62 are fixedly connected by the inner tube 612 and the fixed groove 621. A matching placement groove 6111 is provided at the corresponding position of the first sleeve 61 and the extrusion unit 67. It also includes a tensioning structure for tightening the fire hose 7 during the detection process.

[0053] like Fig.10 and Figure 12 to Figure 14 As shown, the tensioning structure includes a rotating connecting rod 671 fixedly connected to the top of the placement groove 6111, the bottom of the rotating connecting rod 671 is fixedly connected to the second extrusion block 672, the outer wall of the sliding section 6312 is fixedly connected to the first extrusion block 632, the tip of the first extrusion block 632 is in contact with the tip of the second extrusion block 672, when the drum unit 64 drives the tension unit 63 to rotate, the first extrusion blocks 632 on the plurality of sliding bars 631 will contact with the second extrusion blocks 672 in turn, when the sliding bar 631 is rotating, the first extrusion block 632 is not in contact with the second extrusion block 672, 72, at this time, the sliding block 633 is in the initial state under the force of the return spring 644. When the sliding bar 631 continues to rotate, the first extrusion block 632 gradually contacts the second extrusion block 672, and the first extrusion block 632 slides on the surface of the second extrusion block 672. During the sliding process, the sliding bar 631 will be driven to slide on the first slide bar 643, thereby squeezing the fire hose 7. After the first extrusion block 632 slides over the surface of the second extrusion block 672 during the rotation process, the sliding bar 631 returns to the initial position under the elastic force of the return spring 644.

[0054] The working principle of the technical solution provided by the present invention is as follows: before conducting a wear resistance test on the fire hose 7, first install the active clamping device 6, install the rotating drum unit 64 on the rotating block 65, fix the rotating drum 641 on the rotating block 65 by fixing the first threaded rod 646 on the first threaded hole, and then install the first sleeve 61 on the second sleeve 62.

[0055] Then the fire hose 7 is fixedly sealed. Under the guidance of the inner wall of the first sleeve 61, the fire hose 7 extends to the hose groove 647 in the drum unit 64. The second slide rod 662 is pushed to drive the water driving ring 661 to slide to fit the surface of the hose fixing ring 648. Then the second threaded rod 664 is screwed to make the water driving ring 661 and the hose fixing ring 648 fit tightly, thereby sealing the fire hose 7.

[0056] The other end of the fire hose 7 is fixed on the driven clamping device 5, and the fire hose 7 is filled with water and pressurized to the required pressure through an external water pump. The driving device 4 drives the rotating block 65 to drive the rotating drum unit 64 to rotate. When the rotating drum unit 64 drives the tension unit 63 to rotate, the first extrusion blocks 632 on the plurality of sliding bars 631 will contact with the second extrusion blocks 672 in sequence. When the sliding bar 631 is rotating, the first extrusion block 632 is not in contact with the second extrusion block 672. At this time, the sliding block 633 is in contact with the reset spring 6 44 is in the initial state. When the sliding bar 631 continues to rotate, the first extrusion block 632 gradually contacts the second extrusion block 672, and the first extrusion block 632 slides on the surface of the second extrusion block 672. During the sliding process, the sliding bar 631 will be driven to slide on the first slide bar 643, thereby squeezing the fire hose 7. When the first extrusion block 632 slides over the surface of the second extrusion block 672 during the rotation, the sliding bar 631 returns to its initial position under the elastic force of the return spring 644.

[0057] When the first extrusion block 632 on the sliding bar 631 is squeezed by the second extrusion block 672, since the deformation section 6311 is an elastic structure, it will drive the sliding section 6312 to slide in the extrusion direction under the action of the extrusion force. When sliding, the T-shaped sliders and T-shaped slide grooves on both sides of the sliding section 6312 slide on the T-shaped slide grooves and T-shaped sliders of the adjacent sliding section 6312 respectively. At the same time, the sliding block 633 slides on the first sliding rod 643 to further limit the sliding direction of the sliding section 6312. When the sliding section 6312 slides, it will drive the third guide section 6313 at the top to squeeze the inner wall of the fire hose 7, thereby stretching it toward the top position of the fire hose 7, so that the friction position of the fire hose 7 is tightly fitted with the friction device 3, thereby making the data of the wear resistance test more accurate.

[0058] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fire hose wear detection device, characterized in that: It comprises a support frame, a detection platform is provided on the support frame, a mounting frame is fixedly connected to the bottom of the detection platform, a friction device is connected to the top of the mounting frame, rotating bearings are fixedly connected to both ends of the mounting frame, a driven clamping device and an active clamping device are respectively connected to the two rotating bearings, a fire hose is connected to the driven clamping device and the active clamping device, and a driving device is fixedly connected to the bottom of the detection platform; The active clamping device comprises a rotating block fixedly connected to the inner ring of the rotating bearing, one side of the rotating block is connected to a rotating drum unit, the outer wall of the rotating drum unit is connected to a tension unit, a second sleeve is fixedly connected to a surface wall of a side of the mounting frame close to the rotating bearing, a first sleeve is connected inside the second sleeve, the first sleeve is connected to an extrusion unit close to the top of the tension unit, and one side of the rotating block is fixedly connected to the output end of the driving device; The drum unit comprises a first threaded rod fixedly connected to the rotating block, one end of the first threaded rod is fixedly connected to a drum, one end of the drum away from the first threaded rod is provided with a hexagonal hole, and one end of the drum is provided with a water hose groove; Also includes a sliding structure for the tensioning unit to slide on the drum unit; The tension unit comprises a push belt group slidably connected to the surface wall of the drum, and the push belt group is composed of a plurality of sliding strips evenly distributed in an annular shape; The sliding bar is formed by a deformation section, a sliding section and a third guide section which are connected in sequence and fixedly connected, two ends of the sliding section are respectively fixedly connected to the deformation section and the third guide section, and one end of the deformation section is fixedly connected to a surface wall of one end of the rotating drum; The deformation section is an elastic structure, and the third guide section is an outwardly convex cylindrical structure; The sliding structure comprises a sliding block fixedly connected to the inner wall of the sliding bar, and a penetrating sliding hole is formed on the sliding block; The outer wall of the rotating drum is provided with a slide groove corresponding to the position of the sliding block, and the slide groove and the sliding block are adapted to each other, the inner two ends of the slide groove are fixedly connected with a first slide rod, and the outer wall of the first slide rod is sleeved with a return spring; The sliding block is sleeved on the outer wall of the first sliding rod through the sliding hole, one end of the return spring is fixedly connected to one side of the sliding block, and the other end is fixedly connected to one end of the inner wall of the sliding groove; Also included is a tight structure for the drum unit to fix the fire hose; The compact structure comprises a water hose fixing ring fixedly connected to the inner wall of one end of the rotating drum, the outer surface of the water hose fixing ring is an inwardly concave arc structure, and a belt fixing unit is connected to the rotating block; The belt fixing unit includes four second sliding rods slidably connected to the rotating block, and every two adjacent second sliding rods are distributed at 90 degrees, and the two ends of the second sliding rods are respectively fixedly connected with a water driving ring and a connecting disk, the surface of the water driving ring is adapted to the water belt fixed ring, and the water driving ring and the water belt fixed ring are fixedly connected with a rubber ring at the corresponding position, and two second threaded rods symmetrically distributed with each other are rotatably connected to the connecting disk, and the second threaded rods are fixedly connected to the rotating block; The fire hose is sealed and fixed between the belt fixing unit and the rotating drum through the cooperation between the water driving ring and the water hose fixing ring; The first sleeve is provided with a placement groove adapted to match the extrusion unit at a position corresponding to the extrusion unit; Also included is a tensioning structure for achieving tensioning of the fire hose during the detection process; The tensioning structure includes a rotating connecting rod fixedly connected to the top of the placement groove, the bottom of the rotating connecting rod is fixedly connected to the second extrusion block, and the outer wall of the sliding section is fixedly connected to the first extrusion block. When the sliding bar continues to rotate, the first extrusion block gradually contacts the second extrusion block, and the first extrusion block slides on the surface of the second extrusion block. During the sliding process, the sliding bar will be driven to slide on the first sliding rod, thereby squeezing the fire hose.

2. The fire hose wear detection device according to claim 1, characterized in that: A fixing groove is formed on one side of the second sleeve, and a rotating block slot is formed on the other side, wherein the fixing groove and the rotating block slot are connected; The first sleeve is formed by an outer tube and an inner tube fixedly connected, the outer tube and the inner tube are an integrally formed structure, and a wrapping groove connected to the fixing groove is provided inside the first sleeve.

3. The fire hose wear detection device according to claim 2, characterized in that: The inner tube is formed by a smooth section, a first guide section and a second guide section which are fixedly connected in sequence, the first guide section is an outward convex structure, and the second guide section is an inward concave structure; The outer wall of the inner tube is provided with an inner thread, the outer wall of the fixing groove is provided with an outer thread, and the first sleeve and the second sleeve are fixedly connected by the inner tube and the fixing groove.

4. The fire hose wear detection device according to claim 2, characterized in that: The diameter of the wrapping groove is greater than the diameter of the push belt group, and the gap between the inner wall of the wrapping groove and the push belt group is a belt threading seam for inserting the fire hose.

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