Fire-fighting steel cylinder hydrostatic testing machine and detection method thereof

Abstract

The invention belongs to the technical field of steel cylinder detection equipment, and particularly relates to a fire-fighting steel cylinder hydrostatic testing machine which comprises a main machine body, the main machine body is internally provided with a test cavity and an equipment cavity which are distributed up and down, and a steel cylinder supporting table is arranged at the bottom of the test cavity; the test water tank is arranged in the equipment cavity; the test pipeline is communicated with the test water tank, and the water inlet end of the test pipeline is provided with a pressure test pump, a one-way valve, a pressure gauge and an energy accumulator in series; the steel cylinder joint is arranged at the top of the test cavity, and the steel cylinder joint is communicated with the water outlet end of the test pipeline; a pressure testing pressure gauge and a standard pressure gauge are arranged on the pressure pipeline; the electromagnetic valve is connected in series between the steel cylinder joint and the test pipeline; the circulating pipeline is communicated with the test water tank, and the water inlet end of the circulating pipeline is connected with the electromagnetic valve; wherein the pressure pipeline is connected with the electromagnetic valve, and compared with the prior art, the water recycling effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel cylinder detection equipment, and in particular relates to a fire-fighting steel cylinder water pressure testing machine and a detection method thereof. Background Art

[0002] The cylinder water pressure tester is a device specially used to detect the safety of cylinders under high pressure environment. It is mainly used to verify the pressure resistance and sealing of cylinders to ensure their safety in actual use. The cylinder water pressure tester is usually composed of high-pressure pumps, pressure gauges, control systems and safety devices. For example, the patent with application number CN201110150049.1 discloses a free-style water pressure test device for CO2 fire extinguisher cylinders, which includes a device body and a device working area. The device body and the device working area are frame structures. A control panel is installed on the device body. The frame of the device working area is fixed to the device body through a rotating shaft. A jacking device is fixed to the bottom of the frame of the device working area. A cylinder locking device is fixed to the top of the frame of the device working area. A special quick connector is provided at the bottom of the cylinder locking device. A lifting and pressure relief device is fixed above the cylinder locking device. An alarm device is provided next to the lifting and pressure relief device. The cylinder locking device is connected to the lifting and pressure relief device through a pipeline.

[0003] During the use of this existing fire cylinder water pressure testing machine, the water used in the test process cannot be effectively recycled, which reduces the water recycling effect. In addition, during the water pressure test of the cylinder, the surface inspection and deformation inspection of the cylinder appearance still need to be observed manually, which has low work efficiency and is prone to missed inspections, reducing the test accuracy of the cylinder. Therefore, it is necessary to make improvements. Summary of the invention

[0004] The purpose of the present invention is to provide a fire cylinder water pressure testing machine and a detection method thereof in order to improve the water recycling effect and the working efficiency of cylinder testing and detection in view of the above-mentioned technical problems.

[0005] In view of this, the present invention provides a fire cylinder water pressure testing machine, comprising:

[0006] A main body, wherein the main body has a test cavity and an equipment cavity distributed up and down, and a cylinder support platform is provided at the bottom of the test cavity;

[0007] A test water tank, the test water tank being arranged in the equipment cavity;

[0008] A test pipeline, the test pipeline is connected to a test water tank, and a pressure test pump, a one-way valve, a pressure gauge and an accumulator are arranged in series on the water inlet end of the test pipeline;

[0009] A steel cylinder joint, which is arranged at the top of the test chamber and is connected to the water outlet end of the test pipeline;

[0010] A pressure pipeline, wherein a pressure test pressure gauge and a standard pressure gauge are provided on the pressure pipeline;

[0011] Also includes:

[0012] A solenoid valve, the solenoid valve is arranged in series between the cylinder joint and the test pipeline;

[0013] A circulation pipeline, the circulation pipeline is communicated with a test water tank, and a water inlet end of the circulation pipeline is connected to a solenoid valve;

[0014] Wherein, the pressure pipeline is connected to the solenoid valve.

[0015] In the present technical scheme, through the setting of solenoid valve and circulation pipeline, during the cylinder test, the cylinder to be tested is placed on the cylinder support table and the bottle mouth of the cylinder is connected to the cylinder joint, and then the water in the test water tank is injected into the cylinder through the test pipeline. After the cylinder is filled with water, the pressure test pump is controlled to pressurize the system and the accumulator is charged at the same time. After the pressure in the cylinder reaches the rated value, the pressure test pump stops running and the accumulator starts to release pressure to maintain the pressure of the cylinder. When the system pressure drops, the pressure test pump starts again to pressurize, and so on. When the cylinder is maintaining the pressure, if the cylinder leaks, the pressure gauge will fluctuate. After the test, the pressure is released through the solenoid valve, and the test water flows back to the test water tank through the circulation pipeline, so that the test water is effectively recycled and the recycling effect of water is improved.

[0016] In the above technical solution, further, it also includes:

[0017] A relay is arranged in series between the test pipeline and the solenoid valve.

[0018] In the above technical solution, further, it also includes:

[0019] The steel cylinder surface detection mechanism comprises a detection part arranged in a test cavity, and the detection part can detect the concave-convex deformation of the steel cylinder surface by optical detection.

[0020] In the above technical solution, further, the cylinder surface detection mechanism also includes:

[0021] The lifting drive unit is arranged in the equipment cavity, and the lifting drive unit can drive the detection unit to move up and down along the axial direction of the cylinder.

[0022] In the above technical solution, further, the lifting drive unit also includes:

[0023] A motor mounting seat, the motor mounting seat is arranged in the equipment cavity, and a driving motor and a driving gear driven by the driving motor are arranged on the motor mounting seat;

[0024] A first mounting seat, the first mounting seat is arranged in the equipment cavity, and a first swing rod is hinged on the first mounting seat;

[0025] A second mounting seat, the second mounting seat is arranged in the equipment cavity and is located below the first mounting seat, and a second swing rod is hingedly connected to the second mounting seat;

[0026] A half gear, the half gear being arranged at one end of the first swing rod and meshing with the driving gear;

[0027] A first connecting rod, wherein two ends of the first connecting rod are respectively hinged to the first swing rod and the second swing rod;

[0028] a third swing rod, the third swing rod being hinged to an end of the first swing rod away from the half gear;

[0029] a fourth swing rod, the fourth swing rod being hinged to an end of the second swing rod away from the second mounting seat;

[0030] A driving rod, wherein the driving rod is vertically arranged in the equipment cavity, the top end of the driving rod extends into the test cavity, and the bottom end of the driving rod is hinged to the fourth swing rod;

[0031] a fifth swing rod, wherein two ends of the fifth swing rod are respectively hinged to the third swing rod and the second swing rod;

[0032] A hinge, wherein the hinge is used for hinge connection;

[0033] Among them, the first rocker arm, the first connecting rod and the second rocker arm form a first parallelogram structure, the end of the third rocker arm away from the fifth rocker arm is hinged to the driving rod, the third rocker arm, the fourth rocker arm, the first connecting rod and the driving rod form a second parallelogram structure, and the top end of the driving rod is connected to the detection part to drive the detection part to move up and down along the axial direction of the cylinder.

[0034] In the above technical solution, further, the hinged member further comprises:

[0035] A housing having a bearing mounting cavity therein;

[0036] A stabilizing layer, wherein the stabilizing layer is filled in the bearing installation cavity, and a plurality of strip-shaped holes are evenly spaced and distributed along the circumference of the bearing on the stabilizing layer;

[0037] a bearing disposed at the center of the stabilization layer;

[0038] An articulated shaft, wherein the articulated shaft is passed through the bearing;

[0039] A plurality of reinforcing plates are arranged in the stabilizing layer, and the plurality of reinforcing plates are evenly spaced and distributed along the circumference of the bearing.

[0040] In the above technical solution, further, the detection unit also includes:

[0041] A connecting arm, the connecting arm is arranged in the test cavity, and the connecting arm is connected to the top end of the driving rod;

[0042] A support ring, which is connected to the connecting arm and moves up and down with the connecting arm, and two driving cylinders are symmetrically arranged along the radial direction on the support ring;

[0043] An adjustable mounting ring, the adjustable mounting ring is arranged in the supporting ring, the adjustable mounting ring is composed of a plurality of ring segments, and adjacent ring segments are connected by arc-shaped telescopic rods;

[0044] an optical detection unit, wherein the optical detection unit is arranged on the inner wall of the ring segment;

[0045] Wherein, the driving ends of the two driving cylinders are connected to the ring segments of the adjustable mounting ring.

[0046] In the above technical solution, further, the adjustable mounting ring has two layers, the several ring segments of the upper and lower layers of the adjustable mounting rings are staggered and distributed with each other, and the upper adjustable mounting ring is connected to the lower adjustable mounting ring through a connecting support rod.

[0047] In the above technical solution, further, the present invention also discloses a detection method applicable to a lower cylinder water pressure testing machine, comprising the following steps:

[0048] S1: water filling. Place the steel cylinder to be tested on the steel cylinder support table and connect the mouth of the steel cylinder to the steel cylinder joint. Then, inject the water in the test water tank into the steel cylinder through the test pipeline.

[0049] S2 pressurization: after the cylinder is filled with water, the pressure test pump is controlled to pressurize the system and the accumulator is charged at the same time;

[0050] In the S3 test, after the pressure in the cylinder reaches the rated value, the pressure test pump stops running, and the accumulator starts to release pressure to maintain the pressure of the cylinder. When the system pressure drops, the pressure test pump starts again to increase the pressure, and this cycle repeats. When the cylinder is maintaining the pressure, if there is a leak in the cylinder, the pressure gauge will fluctuate, and the relay will receive an electrical signal to alarm.

[0051] S4 pressure relief: after the test, the pressure is relieved through the solenoid valve, and the test water flows back to the test water tank through the circulation pipeline;

[0052] S5 surface test, during the cylinder test, the cylinder to be tested is placed on the cylinder support table and the bottle mouth of the cylinder is connected to the cylinder joint. The lifting drive unit drives the detection unit to rise and performs an initial detection on the cylinder body, and records the initial detection data. After the initial detection, the lifting drive unit drives the detection unit to reset. After the cylinder test is completed, the lifting drive unit drives the detection unit to rise again and detects the cylinder body. At the same time, the detection data is compared and analyzed with the initial detection data to determine the deformation of the cylinder body.

[0053] In the present technical solution, the above method is used to test the steel cylinder, which can not only effectively detect the leakage of the steel cylinder, but also effectively and automatically detect the deformation of the surface of the steel cylinder, thereby preventing the phenomenon of missing defects in the steel cylinder body, improving work efficiency, and the test water can be effectively recycled, thereby improving the recycling effect of water.

[0054] The beneficial effects of the present invention are:

[0055] 1. Through the setting of solenoid valve and circulation pipeline, the test water can be effectively recycled, which improves the recycling effect of water;

[0056] 2. The setting of the cylinder surface detection mechanism can automatically and efficiently detect the deformation of the cylinder body, preventing missed detection and improving work efficiency;

[0057] 3. The adjustable mounting ring can effectively adjust the distance between the optical detection unit and the surface of the cylinder body, so that cylinders of different sizes can be used for testing, preventing the distance change from affecting the detection accuracy and improving the effect of cylinder surface detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0059] Figure 1 It is a schematic structural diagram of a specific implementation method of the present invention.

[0060] Figure 2 Schematic diagram of the test chamber structure of the present invention.

[0061] Figure 3 It is a schematic diagram of the principle diagram of the present invention.

[0062] Figure 4 It is a schematic diagram of the equipment cavity structure of the present invention.

[0063] Figure 5 It is a structural schematic diagram of the lifting drive unit of the present invention.

[0064] Figure 6 It is a schematic diagram of the hinge structure of the present invention.

[0065] Figure 7 It is a schematic diagram of the structure of the detection part of the present invention.

[0066] The symbols in the figure are:

[0067] 1. Main body; 100. Test chamber; 101. Equipment chamber; 2. Steel cylinder support platform; 3. Test water tank; 4. Test pipeline; 40. Test pressure pump; 41. Check valve; 42. Pressure gauge; 43. Accumulator; 5. Steel cylinder joint; 6. Pressure pipeline; 60. Test pressure gauge; 61. Standard pressure gauge; 7. Solenoid valve; 8. Circulation pipeline; 9. Relay; 10. Detection unit; 1000. Connecting arm; 1001. Support ring; 1002. Drive cylinder; 1003. Adjustable mounting ring; 1004. Ring segment; 1005. Arc telescopic rod; 1006 , optical detection unit; 1007, connecting support rod; 11, lifting drive unit; 110, motor mounting seat; 111, driving gear; 112, first mounting seat; 113, first swing rod; 114, second mounting seat; 115, second swing rod; 116, half gear; 117, first connecting rod; 118, third swing rod; 119, fourth swing rod; 1110, driving rod; 1111, fifth swing rod; 12, hinge; 120, housing; 121, stabilizing layer; 122, strip hole; 123, bearing; 124, hinge shaft; 125, reinforcing plate. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0069] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0070] Embodiment 1:

[0071] The embodiment of the present application provides a fire cylinder water pressure tester, comprising: a main body 1, wherein the main body 1 has a test chamber 100 and an equipment chamber 101 distributed up and down, and a cylinder support platform 2 is arranged at the bottom of the test chamber 100; a test water tank 3, wherein the test water tank 3 is arranged in the equipment chamber 101; a test pipeline 4, wherein the test pipeline 4 is connected to the test water tank 3, and a test pressure pump 40, a one-way valve 41, a pressure gauge 42 and an accumulator 43 are arranged in series on the water inlet end of the test pipeline 4; a cylinder joint 5, wherein the cylinder joint 5 is arranged at the top of the test chamber 100, and the cylinder joint 5 is connected to the water outlet end of the test pipeline 4; a pressure pipeline 6, wherein a test pressure gauge 6042 and a standard pressure gauge 6142 are arranged on the pressure pipeline 6;

[0072] It also includes: a solenoid valve 7, which is arranged in series between the cylinder joint 5 and the test pipeline 4; a circulation pipeline 8, which is connected to the test water tank 3, and the water inlet end of the circulation pipeline 8 is connected to the solenoid valve 7;

[0073] The pressure line 6 is connected to the solenoid valve 7 .

[0074] It also includes: a relay 9, which is arranged in series between the test pipeline 4 and the solenoid valve 7.

[0075] Moreover, it also includes a stop valve, which is installed in series on the pressure pipeline 6 and between the test pressure gauge 6042 and the standard pressure gauge 6142. A control unit is installed on the surface of the main body 1. The control unit is a conventional testing machine control unit, including a control display interface, control buttons and a pressure display gauge.

[0076] In this embodiment, through the arrangement of the solenoid valve 7 and the circulation pipeline 8, during the cylinder test, the cylinder to be tested is placed on the cylinder support platform 2 and the bottle mouth of the cylinder is connected to the cylinder connector 5, and then the water in the test water tank 3 is injected into the cylinder through the test pipeline 4. After the cylinder is filled with water, the pressure test pump 40 is controlled to pressurize the system and the accumulator 43 is stored. After the pressure in the cylinder reaches the rated value, the pressure test pump 40 stops running and the accumulator 43 starts to release the pressure to maintain the pressure of the cylinder. When the system pressure drops, the pressure test pump 40 starts again to pressurize, and this cycle repeats. When the cylinder is maintaining the pressure, if the cylinder leaks, the pressure gauge 42 will fluctuate in value, and the relay 9 will receive an electrical signal to alarm. After the test is completed, the pressure is released through the solenoid valve 7, and the test water flows back to the test water tank 3 through the circulation pipeline 8, thereby effectively recycling the test water and improving the recycling effect of water.

[0077] Embodiment 2:

[0078] The present embodiment provides a fire cylinder water pressure testing machine, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features, and also includes: a cylinder surface detection mechanism, the cylinder surface detection mechanism includes a detection unit 10 arranged in a test cavity 100, and the detection unit 10 can detect the concave and convex deformation of the cylinder surface through optical detection.

[0079] The cylinder surface detection mechanism further includes: a lifting drive unit 11, which is disposed in the equipment cavity 101 and can drive the detection unit 10 to move up and down along the axial direction of the cylinder.

[0080] The lifting drive unit 11 also includes: a motor mounting seat 110, the motor mounting seat 110 is arranged in the equipment cavity 101, and a driving motor and a driving gear 111 driven by the driving motor are arranged on the motor mounting seat 110; a first mounting seat 112, the first mounting seat 112 is arranged in the equipment cavity 101, and a first swing rod 113 is hinged on the first mounting seat 112; a second mounting seat 114, the second mounting seat 114 is arranged in the equipment cavity 101 and is located below the first mounting seat 112, and a second swing rod 115 is hinged on the second mounting seat 114; a half gear 116, the half gear 116 is arranged at one end of the first swing rod 113 and meshes with the driving gear 111; a first connecting rod 117, a first connecting rod 118, a second connecting rod 119, a second connecting rod 120, a second connecting rod 121, a second connecting rod 122, a second connecting rod 123, a second connecting rod 124, a second connecting rod 125, a second connecting rod 126, a second connecting rod 127, a second connecting rod 128, a second connecting rod 129, a second connecting rod 130, a second connecting rod 131, a second connecting rod 132, a second connecting rod 133, a second connecting rod 134, a second connecting rod 135, a second connecting rod 136, a second connecting rod 137, a first connecting rod 138, a first connecting rod 139, a first connecting rod 131, a first connecting rod 132, a first connecting rod 134, a first connecting rod 135, a second connecting rod 136, a second connecting rod 137, a first connecting rod 138, a first connecting rod 139, a first connecting rod 134, a first connecting The two ends of the connecting rod 117 are respectively hinged to the first swing rod 113 and the second swing rod 115; the third swing rod 118, the third swing rod 118 is hinged to the end of the first swing rod 113 away from the half gear 116; the fourth swing rod 119, the fourth swing rod 119 is hinged to the end of the second swing rod 115 away from the second mounting seat 114; the driving rod 1110, the driving rod 1110 is vertically arranged in the equipment cavity 101, the top end of the driving rod 1110 extends into the test cavity 100, and the bottom end of the driving rod 1110 is hinged to the fourth swing rod 119; the fifth swing rod 1111, the two ends of the fifth swing rod 1111 are respectively hinged to the third swing rod 118 and the second swing rod 115; the hinge 12, the hinge 12 is used for hinge;

[0081] Among them, the first rocker arm 113, the first connecting rod 117 and the second rocker arm 115 constitute a first parallelogram structure, the end of the third rocker arm 118 away from the fifth rocker arm 1111 is hinged to the driving rod 1110, the third rocker arm 118, the fourth rocker arm 119, the first connecting rod 117 and the driving rod 1110 constitute a second parallelogram structure, and the top end of the driving rod 1110 is connected to the detection part 10 for driving the detection part 10 to move up and down along the axial direction of the cylinder.

[0082] Furthermore, refer to the attached Figure 4 and 5The hinges of the first swing rod 113, the first connecting rod 117, the second swing rod 115, the third swing rod 118, the fourth swing rod 119, the fifth swing rod 1111 and the driving rod 1110 are all hinged by the hinge 12. The hinge of the first swing rod 113 and the first mounting seat 112 is located at a section of the first swing rod 113 close to the half gear 116. The hinge of the second swing rod 115 and the second mounting seat 114 is located at the left end of the second swing rod 115. At the hinge with the second mounting base 114, the two are located on the same vertical line, the first connecting rod 117 is parallel to the aforementioned vertical line, the middle section of the third rocker arm 118 is hinged to the end of the first rocker arm 113 away from the half gear 116, the end of the fourth rocker arm 119 away from the second rocker arm 115 is hinged to the bottom end of the driving rod 1110, the end of the third rocker arm 118 away from the fifth rocker arm 1111 is hinged to the middle section of the driving rod 1110, and the two ends of the fifth rocker arm 1111 are hinged to the right end of the third rocker arm 118 and the left end of the second rocker arm 115 respectively.

[0083] In the present embodiment, during the operation of the cylinder detection mechanism, the driving gear 111 is driven by the driving motor to rotate, thereby driving the half gear 116 meshing therewith to rotate, and the first swing rod 113 swings along with the half gear 116, and since the first swing rod 113, the first connecting rod 117 and the second swing rod 115 form a first parallelogram structure, the first swing rod 113 drives the first connecting rod 117 to move vertically downward during the downward swinging process, and then the third swing rod 118 moves vertically downward, and at the same time, the fifth swing rod 1111 rotates to pull the third swing rod 118 to rotate, thereby driving the driving rod 113 to rotate. 110 moves vertically upward, the driving rod 1110 moves vertically upward and thus drives the detection unit 10 to move up and down, and the third swing rod 118, the fourth swing rod 119, the first connecting rod 117 and the driving rod 1110 form a second parallelogram structure, which can cooperate with the first parallelogram structure formed by the first swing rod 113, the first connecting rod 117 and the second swing rod 115, and the lifting transmission is performed through the double parallelogram structure, which can effectively improve the stability of the detection unit 10 during the movement, reduce the shaking of the detection unit 10, and improve the detection stability and detection accuracy of the detection unit 10.

[0084] Embodiment 3:

[0085] The present embodiment provides a fire cylinder water pressure testing machine, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features, the hinge 12 also includes: an outer shell 120, the outer shell 120 has a bearing 123 installation cavity; a stabilizing layer 121, the stabilizing layer 121 is filled in the bearing 123 installation cavity, and the stabilizing layer 121 has a plurality of strip holes 122 evenly spaced and distributed along the circumference of the bearing 123; a bearing 123, the bearing 123 is arranged at the center of the stabilizing layer 121; an articulated shaft 124, the articulated shaft 124 is passed through the bearing 123; a plurality of reinforcing plates 125, the reinforcing plates 125 are arranged in the stabilizing layer 121, and the plurality of reinforcing plates 125 are evenly spaced and distributed along the circumference of the bearing 123.

[0086] Moreover, the outer shell 120 is cylindrical and has openings at both ends. The two ends of the outer shell 120 can be closed by a conventional cover plate. The stabilizing layer 121 is made of an elastic material, preferably a rubber material. The stabilizing layer 121 is cylindrical and has a hole in the center for installing the bearing 123. The strip hole 122 penetrates the stabilizing layer 121 along the axial direction of the stabilizing layer 121. The strip hole 122 has the same curvature as the circumferential direction of the stabilizing layer 121. Two positioning protrusions are also symmetrically installed on the surface of the stabilizing layer 121. The corresponding positioning protrusion of the outer shell 120 is provided with a through hole. The positioning protrusion can pass through the through hole and cooperate with the corresponding positioning hole opened at the hinge of the component. The reinforcing plate 125 at the positioning protrusion is correspondingly provided with a portion extending into the positioning protrusion.

[0087] In this embodiment, through the arrangement of the hinge 12, when the lifting drive unit 11 drives the detection unit 10 to move, the stabilizing layer 121 and the plurality of strip holes 122 distributed in the stabilizing layer 121 can effectively reduce the shaking between the rocker arms, between the rocker arms and the connecting rods, between the rocker arms and the driving rod 1110, and between the driving rod 1110 and the connecting rods when each rocker arm and the connecting rod moves, and adapt to and correct the errors between the above components, thereby further improving the stability of the detection unit 10 during movement, reducing the shaking of the detection unit 10, and improving the detection stability and detection accuracy of the detection unit 10. At the same time, the plurality of reinforcing plates 125 can improve the structural strength of the stabilizing layer 121, ensure that the stabilizing layer 121 can work stably, and improve the service life of the hinge 12.

[0088] Embodiment 4:

[0089] The present embodiment provides a fire cylinder water pressure tester, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the detection unit 10 also includes: a connecting arm 1000, which is arranged in the test chamber 100, and the connecting arm 1000 is connected to the top of the driving rod 1110; a support ring 1001, which is connected to the connecting arm 1000 and moves up and down with the connecting arm 1000, and two driving cylinders 1002 are symmetrically arranged along the radial direction on the support ring 1001; an adjustable mounting ring 1003, which is arranged in the support ring 1001, and the adjustable mounting ring 1003 is composed of a plurality of ring segments 1004, and the adjacent ring segments 1004 are connected by arc-shaped telescopic rods 1005; an optical detection unit 1006, which is arranged on the inner wall of the ring segment 1004;

[0090] The driving ends of the two driving cylinders 1002 are both connected to the ring segment 1004 of the adjustable mounting ring 1003 .

[0091] The adjustable mounting ring 1003 has two layers, the upper and lower layers. The ring segments 1004 of the upper and lower layers of the adjustable mounting rings 1003 are staggered and distributed with each other. The upper layer of the adjustable mounting ring 1003 is connected to the lower layer of the adjustable mounting ring 1003 via a connecting support rod 1007 .

[0092] Moreover, the optical detection unit 1006 and the driving motor are both electrically connected to the control unit. The optical detection unit 1006 can be a conventional laser detection structure or an infrared light curtain detection structure, which includes components such as a transmitting circuit, an optical lens, an imaging module, and a processor, which are not repeated in this embodiment and the accompanying drawings.

[0093] In this embodiment, during the working process of the detection unit 10, the ring segment 1004 connected to the two driving cylinders 1002 is driven by the driving cylinders 1002 to move toward the outside or inside of the support ring 1001 along the radial direction of the support ring 1001, and the plurality of ring segments 1004 connected to each other through the arc-shaped telescopic rod 1005 move along with the ring segment 1004 driven by the driving cylinders 1002, thereby adjusting the inner diameter of the adjustable mounting ring 1003, and the optical detection unit 1006 arranged on the inner wall of the ring segment 1004 changes the optical detection unit 1006 and the surface of the cylinder as the inner diameter of the adjustable mounting ring 1003 changes. The distance can be adapted to the surface detection of steel cylinders of different specifications, ensuring that the distance between the optical detection unit 1006 and the surface of the steel cylinder is always in the optimal range, preventing the ranging accuracy, signal strength, viewing angle and reflection characteristics from being affected by distance factors, thereby improving the accuracy and precision of the detection unit 10 in detecting the surface of the steel cylinder. At the same time, by arranging the adjustable mounting ring 1003 into two layers, and staggering the several ring segments 1004 of the upper and lower layers of the adjustable mounting rings 1003, the optical detection units 1006 on the upper and lower layers of the adjustable mounting rings 1003 can fully cover the surface of the steel cylinder in the circumferential direction, thereby further improving the accuracy and precision of the detection of the surface of the steel cylinder.

[0094] Embodiment 5:

[0095] This embodiment provides a detection method applicable to a fire cylinder water pressure testing machine. In addition to the technical solutions of the above embodiments, it also has the following technical features, including the following steps:

[0096] S1: water filling, placing the steel cylinder to be tested on the steel cylinder support 2 and connecting the mouth of the steel cylinder to the steel cylinder connector 5, and then injecting the water in the test water tank 3 into the steel cylinder through the test pipeline 4;

[0097] S2 pressurization, after the cylinder is filled with water, the pressure test pump 40 is controlled to pressurize the system and the accumulator 43 is charged at the same time;

[0098] In the S3 test, after the pressure in the cylinder reaches the rated value, the pressure test pump 40 stops running, and the accumulator 43 starts to release pressure to maintain the pressure of the cylinder. When the system pressure drops, the pressure test pump 40 starts to pressurize again, and this cycle repeats. When the cylinder is maintaining pressure, if the cylinder leaks, the pressure gauge 42 will fluctuate, and the relay 9 will receive an electrical signal to alarm.

[0099] S4 pressure relief: after the test is finished, the pressure is relieved through the solenoid valve 7, and the test water flows back to the test water tank 3 through the circulation pipeline 8;

[0100] S5 surface test. During the cylinder test, the cylinder to be tested is placed on the cylinder support platform 2 and the mouth of the cylinder is connected to the cylinder joint 5. The lifting drive unit 11 drives the detection unit 10 to rise and performs an initial detection on the cylinder body, and records the initial detection data. After the initial detection, the lifting drive unit 11 drives the detection unit 10 to reset. After the cylinder test is completed, the lifting drive unit 11 drives the detection unit 10 to rise again and detect the cylinder body. At the same time, the detection data is compared and analyzed with the initial detection data to determine the deformation of the cylinder body.

[0101] In this embodiment, the above method is used to test the steel cylinder, which can not only effectively detect the leakage of the steel cylinder, but also effectively and automatically detect the deformation of the surface of the steel cylinder, thereby preventing the phenomenon of missing defects in the steel cylinder body, improving work efficiency, and the test water can be effectively recycled, improving the recycling effect of water.

[0102] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fire cylinder hydraulic testing machine, include: A main body (1), wherein the main body (1) has a test chamber (100) and an equipment chamber (101) distributed vertically, and a cylinder support platform (2) is provided at the bottom of the test chamber (100); A test water tank (3), wherein the test water tank (3) is arranged in the equipment cavity (101); A test pipeline (4), the test pipeline (4) being in communication with the test water tank (3), and a pressure test pump (40), a one-way valve (41), a pressure gauge (42) and an accumulator (43) being arranged in series on the water inlet end of the test pipeline (4); A steel cylinder joint (5), the steel cylinder joint (5) being arranged at the top of the test chamber (100), the steel cylinder joint (5) being in communication with the water outlet end of the test pipeline (4); A pressure pipeline (6), wherein the pressure pipeline (6) is provided with a pressure test pressure gauge (60) (42) and a standard pressure gauge (61) (42); It is characterized by further comprising: A solenoid valve (7), the solenoid valve (7) being arranged in series between the cylinder connector (5) and the test pipeline (4); A circulation pipeline (8), wherein the circulation pipeline (8) is in communication with the test water tank (3), and a water inlet end of the circulation pipeline (8) is connected to a solenoid valve (7); Wherein, the pressure pipeline (6) is connected to the solenoid valve (7).

2. A fire cylinder water pressure testing machine according to claim 1, It is characterized in that Also includes: A relay (9) is arranged in series between the test pipeline (4) and the solenoid valve (7).

3. A fire cylinder water pressure testing machine according to claim 1, It is characterized in that Also includes: A steel cylinder surface detection mechanism comprises a detection unit (10) arranged in a test chamber (100), wherein the detection unit (10) can detect the concave-convex deformation of the steel cylinder surface through optical detection.

4. A fire cylinder water pressure testing machine according to claim 3, It is characterized in that The cylinder surface detection mechanism also includes: A lifting drive unit (11), wherein the lifting drive unit (11) is arranged in the equipment cavity (101), and the lifting drive unit (11) can drive the detection unit (10) to move up and down along the axial direction of the steel cylinder.

5. A fire cylinder water pressure testing machine according to claim 4, It is characterized in that The lifting drive unit (11) further comprises: A motor mounting seat (110), the motor mounting seat (110) being arranged in the equipment cavity (101), and a driving motor and a driving gear (111) driven by the driving motor being arranged on the motor mounting seat (110); A first mounting seat (112), the first mounting seat (112) being arranged in the equipment cavity (101), and a first swing rod (113) being hingedly connected to the first mounting seat (112); A second mounting seat (114), the second mounting seat (114) being arranged in the equipment cavity (101) and located below the first mounting seat (112), and a second swing rod (115) being hingedly connected to the second mounting seat (114); A half gear (116), the half gear (116) being arranged at one end of the first swing rod (113) and meshing with the driving gear (111); A first connecting rod (117), wherein two ends of the first connecting rod (117) are respectively hinged to the first swing rod (113) and the second swing rod (115); a third swing rod (118), the third swing rod (118) being hinged to an end of the first swing rod (113) away from the half gear (116); A fourth swing rod (119), the fourth swing rod (119) being hinged to an end of the second swing rod (115) away from the second mounting seat (114); A driving rod (1110), wherein the driving rod (1110) is vertically arranged in the equipment cavity (101), the top end of the driving rod (1110) extends into the test cavity (100), and the bottom end of the driving rod (1110) is hinged to a fourth swing rod (119); a fifth swing rod (1111), wherein two ends of the fifth swing rod (1111) are respectively hinged to the third swing rod (118) and the second swing rod (115); A hinge (12), wherein the hinge (12) is used for hinge connection; The first swing arm (113), the first connecting rod (117) and the second swing arm (115) form a first parallelogram structure; one end of the third swing arm (118) away from the fifth swing arm (1111) is hinged to the driving rod (1110); the third swing arm (118), the fourth swing arm (119), the first connecting rod (117) and the driving rod (1110) form a second parallelogram structure; the top end of the driving rod (1110) is connected to the detection part (10) for driving the detection part (10) to move up and down along the axial direction of the cylinder.

6. A fire cylinder water pressure testing machine according to claim 5, It is characterized in that The hinge (12) further comprises: A housing (120), wherein the housing (120) has a bearing (123) mounting cavity; A stabilizing layer (121), the stabilizing layer (121) being filled and arranged in a bearing (123) mounting cavity, the stabilizing layer (121) having a plurality of strip-shaped holes (122) evenly spaced and distributed along the circumference of the bearing (123); A bearing (123), wherein the bearing (123) is arranged at the center of the stabilizing layer (121); An articulated shaft (124), wherein the articulated shaft (124) is passed through the bearing (123); A plurality of reinforcing plates (125) are arranged in the stabilizing layer (121), and the plurality of reinforcing plates (125) are evenly spaced and distributed along the circumference of the bearing (123).

7. A fire cylinder water pressure testing machine according to claim 5, It is characterized in that The detection unit (10) further includes: A connecting arm (1000), wherein the connecting arm (1000) is disposed in the test chamber (100), and the connecting arm (1000) is connected to the top end of the driving rod (1110); A support ring (1001), wherein the support ring (1001) is connected to the connecting arm (1000) and moves up and down following the connecting arm (1000), and two driving cylinders (1002) are symmetrically arranged in a radial direction on the support ring (1001); An adjustable mounting ring (1003), the adjustable mounting ring (1003) being arranged inside the supporting ring (1001), the adjustable mounting ring (1003) being composed of a plurality of ring segments (1004), and adjacent ring segments (1004) being connected via arc-shaped telescopic rods (1005); an optical detection unit (1006), wherein the optical detection unit (1006) is arranged on the inner wall of the ring segment (1004); The driving ends of the two driving cylinders (1002) are both connected to the ring section (1004) of the adjustable mounting ring (1003).

8. A fire cylinder water pressure testing machine according to claim 7, Features: The adjustable mounting ring (1003) has two layers, an upper layer and an lower layer, wherein the plurality of ring segments (1004) of the upper and lower layers of the adjustable mounting rings (1003) are arranged alternately with each other, and the upper layer of the adjustable mounting ring (1003) is connected to the lower layer of the adjustable mounting ring (1003) via a connecting support rod (1007).

9. A detection method applicable to the fire cylinder water pressure testing machine according to claim 7, It is characterized in that The following steps are involved: S1: water filling. The steel cylinder to be tested is placed on the steel cylinder support table (2) and the mouth of the steel cylinder is connected to the steel cylinder connector (5). Then, the water in the test water tank (3) is injected into the steel cylinder through the test pipeline (4); S2 pressurization, after the cylinder is filled with water, the pressure test pump (40) is controlled to pressurize the system and the accumulator (43) is charged at the same time; In the S3 test, after the pressure in the cylinder reaches the rated value, the pressure test pump (40) stops running, and the accumulator (43) starts to release pressure to maintain the pressure of the cylinder. When the system pressure drops, the pressure test pump (40) starts to increase the pressure again, and this cycle repeats. When the cylinder is maintaining the pressure, if the cylinder leaks, the value of the pressure gauge (42) fluctuates, and the relay (9) receives an electrical signal to sound an alarm. S4 pressure relief: after the test is completed, the pressure is relieved through the solenoid valve (7), and the test water flows back to the test water tank (3) through the circulation pipeline (8); S5 surface test, during the steel cylinder test, the steel cylinder to be tested is placed on the steel cylinder support platform (2) and the mouth of the steel cylinder is connected to the steel cylinder joint (5), then the lifting drive unit (11) drives the detection unit (10) to rise and perform an initial detection on the steel cylinder body, and records the initial detection data at the same time. After the initial detection, the lifting drive unit (11) drives the detection unit (10) to reset. After the steel cylinder test is completed, the lifting drive unit (11) drives the detection unit (10) to rise again and perform a detection on the steel cylinder body, and compares and analyzes the detection data with the initial detection data to determine the deformation of the steel cylinder body.

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