Fire hose testing machine and testing method thereof

By designing structures such as pulling plates and sliding plates in the fire hose test machine, the uneven wear caused by wrinkles on the surface of the fire hose is solved, and the uniform stress and safety of the fire hose test is achieved, ensuring the accuracy of the test data.

CN120558769AInactive Publication Date: 2025-08-29ZHENGZHOU DAYU FIRE EQUIP CO LTD
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Patent Information

Application Number
CN202510775205.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2025-08-29
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

It is difficult for existing fire hose test machines to flatten the wrinkles on the surface of the fire hose during wear resistance tests, resulting in uneven wear and affecting the accuracy of the test data.

Method used

A fire hose test machine is designed to pull and squeeze the wrinkles on the surface of the fire hose by pulling and extruding the folds on the surface of the fire hose by pulling the flat plate. Combined with the continuous contact of the sliding plate and the stability of the friction parts, it ensures that the surface of the fire hose is uniform, and the anti-detachment and detection module are prevented from being displaced and stuck.

Benefits of technology

The uniform wear of the fire hose surface is achieved, local excessive wear and accidental tear of the hose is avoided, the safety and accuracy of the test are ensured, and the loss of the test sample is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a fire hose testing machine and a testing method thereof, and relates to the technical field of fire hose testing, the fire hose testing machine comprises a testing stand and further comprises a testing hole, the testing hole is formed in the top of the testing stand, a lead screw is rotatably installed on the inner wall of the testing stand, and a translation plate is slidably installed on the top of the inner wall of the testing stand; the translation plate is in threaded connection with the lead screw, a U-shaped frame is fixedly installed at the top of the test bed, a lifting device is fixedly installed on the right side of the U-shaped frame, a lifting plate is fixedly installed at the output end of the lifting device, a sliding plate is slidably installed at the bottom of the right side of the inner wall of the lifting plate, and the lifting plate moves downwards to drive the flattening plate to move downwards. The pulling plate moves downwards to be in contact with the top of the fire hose and extrudes the fire hose, the flat surface of the fire hose can ensure uniform stress in the friction process, local excessive abrasion caused by wrinkles is avoided, and therefore the situation that a high-quality hose is misjudged due to local abnormal abrasion is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of fire hose testing, in particular to a fire hose testing machine and a testing method thereof. Background Art

[0002] Fire hose testing machine usually consists of a test bench, test holes, friction parts and control components, and is used to test fire hoses after multiple uses.

[0003] Patent publication number CN212254945U relates to a fire hose wear tester, comprising a test platform and a friction test bench connected to and mounted above the test platform by an adjustment mechanism. The upper end surface of the test platform is provided with multiple sets of joint limit grooves equidistantly spaced on one side for engaging and limiting the fire hose joints. A roller groove for mounting positioning rollers and clamping rollers is provided on the side of the test platform away from the joint limit grooves. A set of lower pressure rollers is provided on the side of the upper end surface of the test platform near the roller grooves. The friction test bench includes two sets of symmetrically arranged mounting bases and multiple sets of drive rollers equidistantly spaced between the mounting bases. One of the multiple sets of drive rollers is connected to the motor shaft of the drive motor, and the outer periphery of the multiple sets of drive rollers is coated with friction belts. This patent facilitates the installation of fire hoses and is easily adjustable to change the friction contact area, thus possessing high practical value.

[0004] In the above patent, one of the multiple sets of transmission rollers is connected to the motor shaft of the drive motor, and the outer periphery of the multiple sets of transmission rollers is covered with a friction belt, which facilitates the installation of the fire hose and is easy to adjust to achieve changes in the friction contact area. However, it is difficult to flatten the wrinkles on the surface of the fire hose during the wear resistance test. The presence of wrinkles causes uneven force on the surface of the fire hose, resulting in wear concentrated on the raised parts of the wrinkles, making it impossible for the test data to truly reflect the overall wear resistance of the fire hose. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fire hose testing machine and a testing method thereof, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fire hose testing machine, including a test bench and a test hole, the test hole is opened at the top of the test bench, the inner wall of the test bench is rotatably installed with a screw rod, the top of the inner wall of the test bench is slidably installed with a translation plate, the translation plate is threadedly connected to the screw rod, the top of the test bench is fixedly installed with a U-shaped frame, the right side of the U-shaped frame is fixedly installed with a lifting device, the output end of the lifting device is fixedly installed with a lifting plate, the right bottom side of the inner wall of the lifting plate is fixedly installed with a sliding plate, the top of the lifting plate is provided with a lifting slot, the lifting slot is rotatably installed with a pulling plate, the bottom of the lifting plate is provided with an arc slot, the top of the lifting plate is provided with a square hole, and a friction member is fixedly installed on the left side of the translation plate, the friction member is used to perform a friction test on the fire hose, and the lifting plate moves downward to drive the pulling plate to move downward, and the pulling plate moves downward to contact the top of the fire hose and squeeze the fire hose.

[0007] According to the above technical solution, the bottom of the pulling plate is set to an arc surface, a lifting spring is set between the sliding plate and the lifting plate, and a torsion spring is set between the pulling plate and the lifting groove. The torsion spring can drive the pulling plate to reset, and the sliding plate moves upward and continuously contacts the fire hose to ensure that the fire hose will not be offset when it is pulled flat by the pulling plate.

[0008] According to the above technical solution, the friction member contacts the inner wall of the test hole, and the bottom of the friction member is set as an inclined surface. The friction member and the inner wall of the test hole can improve the stability of the friction member when moving.

[0009] According to the above technical solution, an anti-falling module for preventing the fire hose from falling off is provided on the right side of the U-shaped frame, and a detection module is provided on the top of the test bench. The anti-falling module includes a conducting hole, a pressing rod, a pressing plate and a rubber plate. The pressing plate moves downward to contact the fire hose and press the fire hose. The fire hose is pressed by the pressing plate and then fits tightly with the friction part. The conducting hole is opened on the right side of the U-shaped frame, the pressing rod is slidably installed on the inner wall of the conducting hole, the pressing plate is fixedly installed on the circumferential surface of the pressing rod, and the rubber plate is fixedly installed on the right side of the U-shaped frame.

[0010] According to the above technical solution, the anti-slip module also includes a rubber groove and a conduction plate. The rubber groove is opened on the front side of the rubber plate, and the conduction plate is fixed through the front and rear walls of the pressing plate. The pressing rod is decelerated by the rubber plate and can only slowly drive the pressing plate to move downward to press the fire hose.

[0011] According to the above technical solution, the pressing rod contacts the inner wall of the rubber groove, and a pressing spring is provided between the conducting hole and the pressing rod, and the pressing spring can drive the pressing rod to reset.

[0012] According to the above technical solution, the detection module includes a detection hole, a detection rod, a limit plate, a curved plate and a hollow block. The limit plate moves backward to break away from the contact with the translation plate and releases the limit on the translation plate. The detection hole is opened on the top of the test bench, the detection rod is fixedly installed on the inner wall of the detection hole, the limit plate is slidably installed on the circumferential surface of the detection rod, the curved plate is fixedly installed on the front side of the limit plate, and the hollow block is fixedly installed on the circumferential surface of the detection rod.

[0013] According to the above technical solution, a detection spring is provided between the detection hole and the limit plate, and the detection spring can drive the limit plate to reset. The limit plate contacts the inner wall of the detection hole, and the curved plate contacts the inner wall of the detection hole. The limit plate moves backward and hits the hollow block to cause shaking.

[0014] A method for testing a fire hose testing machine, using the fire hose testing machine described above, comprises the following steps:

[0015] Step 1: Place the fire hose to be tested in the center on the top of the test bench. At the same time, the lifting equipment drives the lifting plate downward, and the downward movement of the lifting plate drives the sliding plate downward, and the downward movement of the lifting plate drives the pulling plate downward;

[0016] Step 2: The pulling plate moves downward to contact the top of the fire hose and squeeze the fire hose. The pulling plate squeezes the fire hose and rotates counterclockwise under the reaction force of squeezing the fire hose.

[0017] Step 3: Rotate the pulling plate counterclockwise to pull the fire hose. The pulling plate pulls the fire hose to flatten the wrinkles on the surface of the fire hose. Wait for the lifting plate to continue to move downward to contact the fire hose and finally fix the fire hose.

[0018] Step 4: After the fire hose is fixed by the lifting plate, a servo motor is installed on the top of the inner wall of the test bench and the output end of the servo motor is fixedly connected to the screw rod. The servo motor is started to drive the screw rod to rotate. The rotation of the screw rod drives the translation plate to move to the left. The movement of the translation plate to the left drives the friction part to move. The friction part moves and contacts with the fire hose and performs a wear test on the fire hose.

[0019] The present invention provides a fire hose testing machine. It has the following beneficial effects:

[0020] (1) This invention uses a pulling plate to pull the fire hose to smooth out the wrinkles on the surface of the fire hose. The smooth surface of the fire hose can ensure uniform force during the friction process, avoid local excessive wear caused by wrinkles, and thus prevent high-quality hoses from being misjudged due to local abnormal wear. The sliding plate moves upward and continuously contacts the fire hose to ensure that the fire hose will not deviate when it is flattened by the pulling plate. The deviated hose may suddenly tear or be thrown out due to uneven force during the high-speed friction test. The continuous contact and constraint of the sliding plate can prevent the hose from accidentally shifting, avoiding dangerous situations such as the fire hose being thrown out.

[0021] (2) In the present invention, the fire hose is pressed by the pressing plate and thus fits tightly against the friction member. The tight fit between the fire hose and the friction member can avoid vibration and abnormal noise caused by poor contact, and prevent the fire hose from jumping or sliding on the friction member, thereby reducing wear on equipment components.

[0022] (3) In this invention, when the pressing rod is decelerated by the rubber plate, the pressing plate can be slowly driven downward to press the fire hose. Rapid pressing can easily cause creases on the surface of the fire hose. By slowly pressing down the fire hose, the fire hose can be further fully fitted with the friction member under a condition of uniformly increasing pressure.

[0023] (4) In this invention, the limiting plate moves backward to disengage from the translation plate and releases the limiting of the translation plate. If the fire hose is not installed stably before the test is started, the hose may be partially debonded or the fibers may break due to the initial uneven force. By ensuring that the wear resistance test of the fire hose is carried out under the condition that the fire hose is compressed, the loss rate of the test sample can be reduced.

[0024] (5) In this invention, the fire hose fragments remaining on the circumferential surface of the detection rod are easily embedded in the gap between the limit plate and the detection rod, causing mechanical jamming. The fire hose fragments remaining on the surface of the detection rod are shaken off by shaking the limit plate, thereby preventing the limit plate from jamming when moving, and ensuring the smooth progress of the wear resistance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the position structure of the screw rod and the translation plate of the present invention;

[0027] Figure 3 This is a schematic diagram of the position structure of the lifting plate and the pulling plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the position structure of the detection hole and the detection rod of the present invention;

[0029] Figure 5 For the present invention Figure 4A schematic diagram of the structure of part A in the middle;

[0030] Figure 6 This is a schematic diagram of the position structure of the limit plate and the curved plate of the present invention;

[0031] Figure 7 This is a schematic diagram of the position structure of the lifting plate and the arc groove of the present invention.

[0032] In the figure: 1. test bench; 2. test hole; 3. screw rod; 4. translation plate; 5. U-shaped frame; 6. lifting device; 7. lifting plate; 8. sliding plate; 9. lifting spring; 10. lifting groove; 11. pulling plate; 12. arc groove; 13. square hole; 14. friction part; 151. conduction hole; 152. pressing rod; 153. pressing spring; 154. pressing plate; 155. rubber plate; 156. rubber groove; 157. conduction plate; 161. detection hole; 162. detection rod; 163. detection spring; 164. limit plate; 165. curved plate; 166. hollow block. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 7 , One embodiment of the present invention is: a fire hose testing machine, including a test bench 1, and also including a test hole 2, the test hole 2 is opened at the top of the test bench 1, the inner wall of the test bench 1 is rotatably installed with a screw rod 3, the inner wall top of the test bench 1 is slidably installed with a translation plate 4, the translation plate 4 is threadedly connected to the screw rod 3, a U-shaped frame 5 is fixedly installed on the top of the test bench 1, a lifting device 6 is fixedly installed on the right side of the U-shaped frame 5, a lifting plate 7 is fixedly installed on the output end of the lifting device 6, a sliding plate 8 is slidably installed on the bottom right side of the inner wall of the lifting plate 7, a lifting groove 10 is opened on the top of the lifting plate 7, a pulling plate 11 is rotatably installed on the lifting groove 10, an arc groove 12 is opened at the bottom of the lifting plate 7, a square hole 13 is opened on the top of the lifting plate 7, a friction member 14 is fixedly installed on the left side of the translation plate 4, the friction member 14 is used to perform a friction test on the fire hose, the flat surface of the fire hose can ensure uniform force during the friction process, avoid local excessive wear caused by wrinkles, and thus avoid the misjudgment of high-quality hoses due to local abnormal wear.

[0035] The bottom of the pulling plate 11 is set to an arc surface, and a lifting spring 9 is provided between the sliding plate 8 and the lifting plate 7. The sliding plate 8 moves upward to squeeze the lifting spring 9, and the lifting spring 9 is squeezed by the sliding plate 8 to produce deformation and store force. After the fire hose is leveled, the lifting spring 9 can be driven to reset by the lifting spring 9. A torsion spring is provided between the pulling plate 11 and the lifting groove 10. The pulling plate 11 rotates counterclockwise to squeeze the torsion spring, and the torsion spring is squeezed by the pulling plate 11 to produce deformation and store force. After the pulling plate 11 is out of contact with the fire hose, the pulling plate 11 can be driven to reset by the torsion spring, and the sliding plate 8 moves upward and continues to contact the fire hose to ensure that the fire hose will not deviate when it is leveled by the pulling plate 11. The continuous contact and constraint of the sliding plate 8 can prevent the hose from accidentally shifting, and avoid dangerous situations such as the fire hose being thrown out.

[0036] The friction member 14 contacts the inner wall of the test hole 2 , and the bottom of the friction member 14 is set as an inclined surface. The friction member 14 and the inner wall of the test hole 2 can improve the stability of the friction member 14 when moving.

[0037] A method for testing a fire hose testing machine, using the fire hose testing machine described above, comprises the following steps:

[0038] Step 1: Place the fire hose to be tested in the center on the top of the test bench 1. At the same time, the lifting device 6 drives the lifting plate 7 to move downward. The downward movement of the lifting plate 7 drives the sliding plate 8 to move downward. The downward movement of the lifting plate 7 drives the pulling plate 11 to move downward.

[0039] Step 2: The pulling plate 11 moves downward to contact the top of the fire hose and squeeze the fire hose. The pulling plate 11 squeezes the fire hose and rotates counterclockwise under the reaction force of squeezing the fire hose.

[0040] Step 3: The pulling plate 11 rotates counterclockwise to pull the fire hose. The pulling plate 11 pulls the fire hose to flatten the wrinkles on the surface of the fire hose. The lifting plate 7 continues to move downward to contact the fire hose and finally fix the fire hose;

[0041] Step 4: After the fire hose is fixed by the lifting plate 7, a servo motor is provided on the top of the inner wall of the test bench 1 and the output end of the servo motor is fixedly connected to the screw rod 3. The servo motor is started to drive the screw rod 3 to rotate. The rotation of the screw rod 3 drives the translation plate 4 to move to the left. The translation plate 4 moves to the left and drives the friction part 14 to move. The friction part 14 moves and contacts with the fire hose and performs a wear resistance test on the fire hose.

[0042] When this embodiment is working: the fire hose to be tested is placed in the center on the top of the test bench 1, and the lifting equipment 6 drives the lifting plate 7 to move downward. The lifting plate 7 moves downward and drives the sliding plate 8 to move downward. The lifting plate 7 moves downward and drives the pulling plate 11 to move downward. The pulling plate 11 moves downward and contacts the top of the fire hose and squeezes the fire hose. The pulling plate 11 squeezes the fire hose and rotates counterclockwise under the reaction force of squeezing the fire hose. The pulling plate 11 rotates counterclockwise to pull the fire hose. The pulling plate 11 pulls the fire hose to flatten the wrinkles on the surface of the fire hose. At the same time, the sliding plate 8 moves downward to contact the top of the fire hose and temporarily fixes the fire hose. When the fire hose is fixed by the downward movement of the sliding plate 8, the pulling plate 11 rotates counterclockwise. Rotating and pulling the fire hose will pull the fire hose and cause it to deform slightly. The deformation and movement of the fire hose will squeeze the sliding plate 8. The sliding plate 8 moves upward due to the squeezing of the fire hose deformation. The sliding plate 8 moves upward and continues to contact the fire hose to ensure that the fire hose will not deviate when it is flattened by the pulling plate 11. The lifting plate 7 continues to move downward to contact the fire hose and finally fix the fire hose. After the fire hose is fixed by the lifting plate 7, a servo motor is provided on the top of the inner wall of the test bench 1 and the output end of the servo motor is fixedly connected to the screw rod 3. The servo motor is started to drive the screw rod 3 to rotate. The rotation of the screw rod 3 drives the translation plate 4 to move to the left. The translation plate 4 moves to the left and drives the friction part 14 to move. The friction part 14 moves to contact the fire hose and performs a wear resistance test on the fire hose.

[0043] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, an anti-falling module for preventing the fire hose from falling off is provided on the right side of the U-shaped frame 5, and a detection module is provided on the top of the test bench 1. The anti-falling module includes a conducting hole 151, a pressing rod 152, a pressing plate 154 and a rubber plate 155. The conducting hole 151 is opened on the right side of the U-shaped frame 5, the pressing rod 152 is slidably installed on the inner wall of the conducting hole 151, the pressing plate 154 is fixedly installed on the circumferential surface of the pressing rod 152, and the rubber plate 155 is fixedly installed on the right side of the U-shaped frame 5. The fire hose and the friction member 14 fit tightly together to avoid vibration and abnormal noise caused by poor contact, and prevent the fire hose from jumping or sliding on the friction member 14, thereby reducing wear on equipment components.

[0044] The anti-slip module also includes a rubber groove 156 and a conduction plate 157. The rubber groove 156 is opened on the front side of the rubber plate 155. The conduction plate 157 is fixed through the front and rear walls of the pressing plate 154. When the pressing rod 152 is decelerated by the rubber plate 155, it can slowly drive the pressing plate 154 to move downward to press the fire hose. Rapid pressing can easily cause creases on the surface of the fire hose. By slowly pressing down the fire hose, it can further fully fit with the friction member 14 under a state of evenly increasing pressure.

[0045] The pressing rod 152 contacts the inner wall of the rubber groove 156. The pressing rod 152 contacts the inner wall of the rubber groove 156 to apply additional friction to slow down the pressing rod 152. A pressing spring 153 is provided between the conducting hole 151 and the pressing rod 152. The pressing rod 152 moves downward to squeeze the pressing spring 153. The pressing spring 153 is squeezed by the pressing rod 152 to produce deformation and accumulate force. After the pressing rod 152 is out of contact with the lifting plate 7, the pressing spring 153 can drive the pressing rod 152 to reset.

[0046] The detection module includes a detection hole 161, a detection rod 162, a limiting plate 164, a curved plate 165 and a hollow block 166. The detection hole 161 is opened at the top of the test bench 1, the detection rod 162 is fixedly installed on the inner wall of the detection hole 161, the limiting plate 164 is slidably installed on the circumferential surface of the detection rod 162, the curved plate 165 is fixedly installed on the front side of the limiting plate 164, and the hollow block 166 is fixedly installed on the circumferential surface of the detection rod 162. By ensuring that the wear resistance test of the fire hose is carried out under the condition that the fire hose is compressed, the loss rate of the test sample can be reduced.

[0047] A detection spring 163 is provided between the detection hole 161 and the limit plate 164. The limit plate 164 moves backward to pull the detection spring 163. The detection spring 163 is deformed and stored by the pulling of the limit plate 164. After the conductive plate 157 is separated from the contact with the curved plate 165, the detection spring 163 can drive the limit plate 164 to reset. The limit plate 164 contacts the inner wall of the detection hole 161. The contact between the limit plate 164 and the inner wall of the detection hole 161 can increase the stability of the limit plate 164 when moving. The curved plate 165 contacts the inner wall of the detection hole 161, and the limit plate 164 moves backward to hit the hollow block 166 to generate shaking. The fire hose fragments remaining on the surface of the detection rod 162 are shaken off by the shaking of the limit plate 164, thereby preventing the limit plate 164 from getting stuck when moving, thereby ensuring the smooth progress of the wear resistance test.

[0048] When this embodiment is working, the lifting plate 7 moves downward to contact the circumferential surface of the pressing rod 152 and squeeze the pressing rod 152. The pressing rod 152 moves downward under the squeezing of the lifting plate 7. The pressing rod 152 moves downward to drive the pressing plate 154 to move downward. The pressing plate 154 moves downward to contact the fire hose and press the fire hose. The fire hose is pressed by the pressing plate 154 and then fits tightly with the friction member 14. At the same time, the pressing rod 152 moves downward to squeeze the rubber plate 155. The rubber plate 155 is squeezed by the pressing rod 152 to produce deformation, and the rubber plate 155 produces The deformation is generated to slow down the pressing rod 152. When the pressing rod 152 is decelerated by the rubber plate 155, it can slowly drive the pressing plate 154 to move downward to press the fire hose. After the wear test is completed, the lifting equipment 6 drives the lifting plate 7 to move upward and reset. The lifting plate 7 moves upward and resets to break away from the contact with the pressing rod 152. After the lifting plate 7 breaks away from the contact with the pressing rod 152, the pressing rod 152 moves upward and reset under the elastic force of the pressing spring 153. The pressing rod 152 moves upward and resets, driving the pressing plate 154 to move upward and reset to break away from the contact with the fire hose.

[0049] The pressing plate 154 moves downward, driving the conducting plate 157 to move downward. The conducting plate 157 moves downward and contacts the curved plate 165 and squeezes the curved plate 165. The curved plate 165 moves backward due to the squeezing of the conducting plate 157. The curved plate 165 moves backward, driving the limiting plate 164 to move backward. The limiting plate 164 moves backward to break away from the contact with the translation plate 4 and releases the limit on the translation plate 4, thereby ensuring that the wear test of the fire hose is carried out under the condition that the fire hose is compressed. At the same time, the limiting plate 164 moves backward and hits the hollow block 166 to cause shaking. The shaking of the limiting plate 164 will shake off the fire hose fragments remaining on the surface of the detection rod 162, thereby preventing the limiting plate 164 from getting stuck when moving, thereby ensuring the smooth progress of the wear test.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fire hose testing machine, comprising a test bench (1), characterized in that: The test bench (1) further comprises a test hole (2), wherein the test hole (2) is opened at the top of the test bench (1), a screw rod (3) is rotatably mounted on the inner wall of the test bench (1), a translation plate (4) is slidably mounted on the top of the inner wall of the test bench (1), and the translation plate (4) is threadedly connected to the screw rod (3), a U-shaped frame (5) is fixedly mounted on the top of the test bench (1), a lifting device (6) is fixedly mounted on the right side of the U-shaped frame (5), a lifting plate (7) is fixedly mounted on the output end of the lifting device (6), and a sliding plate (7) is slidably mounted on the bottom right side of the inner wall of the lifting plate (7) The movable plate (8) is provided with a lifting groove (10) on the top of the lifting plate (7), a pulling plate (11) is rotatably installed on the lifting groove (10), an arc groove (12) is provided on the bottom of the lifting plate (7), a square hole (13) is provided on the top of the lifting plate (7), a friction member (14) is fixedly installed on the left side of the translation plate (4), and the friction member (14) is used to perform a friction test on the fire hose, an anti-falling module for preventing the fire hose from falling is provided on the right side of the U-shaped frame (5), and a detection module is provided on the top of the test bench (1).

2. A fire hose testing machine according to claim 1, characterized in that: The bottom of the pulling plate (11) is set as an arc surface, a lifting spring (9) is set between the sliding plate (8) and the lifting plate (7), and a torsion spring is set between the pulling plate (11) and the lifting groove (10).

3. A fire hose testing machine according to claim 2, characterized in that: The friction member (14) contacts the inner wall of the test hole (2), and the bottom of the friction member (14) is configured as an inclined surface.

4. A fire hose testing machine according to claim 3, characterized in that: The anti-slip module comprises a conducting hole (151), a pressing rod (152), a pressing plate (154) and a rubber plate (155); the conducting hole (151) is opened on the right side of the U-shaped frame (5); the pressing rod (152) is slidably mounted on the inner wall of the conducting hole (151); the pressing plate (154) is fixedly mounted on the circumferential surface of the pressing rod (152); and the rubber plate (155) is fixedly mounted on the right side of the U-shaped frame (5).

5. A fire hose testing machine according to claim 4, characterized in that: The anti-slip module further comprises a rubber groove (156) and a conducting plate (157), wherein the rubber groove (156) is provided on the front side of the rubber plate (155), and the conducting plate (157) is fixedly passed through the front and rear walls of the pressing plate (154).

6. A fire hose testing machine according to claim 5, characterized in that: The pressing rod (152) contacts the inner wall of the rubber groove (156), and a pressing spring (153) is provided between the conducting hole (151) and the pressing rod (152).

7. A fire hose testing machine according to claim 6, characterized in that: The detection module comprises a detection hole (161), a detection rod (162), a limiting plate (164), a curved plate (165) and a hollow block (166); the detection hole (161) is opened on the top of the test bench (1); the detection rod (162) is fixedly mounted on the inner wall of the detection hole (161); the limiting plate (164) is slidably mounted on the circumferential surface of the detection rod (162); the curved plate (165) is fixedly mounted on the front side of the limiting plate (164); and the hollow block (166) is fixedly mounted on the circumferential surface of the detection rod (162).

8. The fire hose testing machine according to claim 7, characterized in that: A detection spring (163) is provided between the detection hole (161) and the limiting plate (164); the limiting plate (164) contacts the inner wall of the detection hole (161); and the curved plate (165) contacts the inner wall of the detection hole (161).

9. A method for testing a fire hose testing machine, using the fire hose testing machine according to claim 8, characterized in that: The following steps are involved: Step 1: Place the fire hose to be tested in the center on the top of the test bench (1), and at the same time, the lifting device (6) operates to drive the lifting plate (7) to move downward, and the downward movement of the lifting plate (7) drives the sliding plate (8) to move downward, and the downward movement of the lifting plate (7) drives the pulling plate (11) to move downward; Step 2: The pulling plate (11) moves downward to contact the top of the fire hose and squeeze the fire hose. The pulling plate (11) squeezes the fire hose and rotates counterclockwise under the reaction force of squeezing the fire hose; Step 3: The pulling plate (11) rotates counterclockwise to pull the fire hose. The pulling plate (11) pulls the fire hose to flatten the wrinkles on the surface of the fire hose, and the lifting plate (7) continues to move downward to contact the fire hose and finally fix the fire hose; Step 4: After the fire hose is fixed by the lifting plate (7), a servo motor is provided on the top of the inner wall of the test bench (1) and the output end of the servo motor is fixedly connected to the screw rod (3). The servo motor is started to drive the screw rod (3) to rotate. The rotation of the screw rod (3) drives the translation plate (4) to move to the left. The translation plate (4) moves to the left and drives the friction member (14) to move. The friction member (14) moves to contact the fire hose and performs a wear resistance test on the fire hose.

Citation Information

Patent Citations

  • Fire hose wear resistance tester

    CN212254945U