High-pressure air tightness detection device for oil return hose of crane

Abstract

The utility model discloses a crane oil return hose high-pressure air tightness detection device which comprises a rack, a support is installed on the rack, and a conveying belt is rotatably installed on the support and used for supporting and guiding movement of an oil return hose. A liquid tank is mounted on the rack, and a high-pressure air tightness detection mechanism is mounted in the liquid tank and used for detecting the air tightness of the oil return hose; a clamping assembly is installed on the support and used for clamping and fixing one end of the oil return hose. The high-pressure air tightness detection device for the oil return hose of the crane relates to the technical field of air tightness detection devices, and solves the problems that the air tightness detection of the oil return hose in the prior art cannot be effectively fixed, the observation is not convenient, the detection efficiency is high, and the like. And meanwhile, fixed-point detection on the oil return hose is inconvenient, detection in a transparent box is easily influenced by light, and observation is not facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection devices, in particular to a high-pressure air tightness detection device for an oil return hose of a crane. Background Art

[0002] At present, with the improvement of living standards, my country's engineering industry has also developed rapidly. Cranes have been widely used as the main means of transportation. The return oil hose, as the blood vessel of the crane, is responsible for the transportation of various fluids on the whole machine. Depending on the installation position, the return oil hose needs to be tested for air tightness before leaving the factory. At present, the inspection of the air tightness of the return oil hose requires employees to observe with the naked eye, which has the risk of missed inspection, and its air tightness detection device has low efficiency, high labor intensity and high manufacturing cost.

[0003] In order to solve the above problems, patent CN202122612546.0 discloses a high-pressure hose air tightness detection device with simple structure, easy operation, high product detection efficiency, time-saving and labor-saving, and better meeting the needs of use.

[0004] However, the following defects and shortcomings exist in its specific implementation process: the return oil hose cannot be effectively fixed for air tightness detection, which is not conducive to observation; it is also inconvenient to perform fixed-point detection on the return oil hose, and the detection in a transparent box is easily affected by light, which is not conducive to observation. Therefore, we propose a high-pressure air tightness detection device for the return oil hose of a crane. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-pressure air tightness detection device for a crane oil return hose, which solves the problems that the existing oil return hose air tightness detection cannot be effectively fixed, making it difficult to observe, and it is inconvenient to perform fixed-point detection on the oil return hose, and the detection in a transparent box is easily affected by light, making it difficult to observe.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a crane oil return hose high-pressure air tightness detection device, comprising a frame, a bracket is installed on the frame, and a conveyor belt is rotatably installed on the bracket to support and guide the oil return hose;

[0007] A liquid tank is installed on the frame, and a high-pressure air tightness detection mechanism is installed in the liquid tank for detecting the air tightness of the oil return hose;

[0008] The bracket is provided with a clamping assembly for clamping and fixing one end of the oil return hose;

[0009] A waste liquid recovery assembly is installed at one end of the bracket for discharging liquid in the oil return hose;

[0010] A lighting lamp is installed on the frame and at one side of the bracket, and the lighting lamp is driven to move horizontally by a sliding installation component.

[0011] Preferably, a controller is installed on the rack for controlling the electrical components of the device.

[0012] Preferably, a transmission pulley is rotatably mounted on the bracket and located at both ends of the conveyor belt, the transmission pulley is transmission-connected to the conveyor belt, and the transmission pulley is mounted on the output end of an external motor and driven to rotate by the external motor.

[0013] Preferably, the high-pressure air tightness detection mechanism comprises a water pump fixed inside the liquid tank, the liquid outlet of the water pump is fixedly connected with a detection tube, and the end of the detection tube is assembled and fitted with an oil return hose through a bandage.

[0014] Preferably, a trough body is installed on the liquid tank, and the detection tube is clamped and placed inside the trough body.

[0015] Preferably, the waste liquid recovery assembly comprises a slope fixed on the bracket and located at one end of the conveyor belt, and a collecting box fixed on the frame, wherein the collecting box is located below the slope.

[0016] Preferably, the sliding installation assembly includes a base fixed on the frame, a slide groove is installed on the top of the base, a slider is slidably engaged in the slide groove, and the lighting lamp is fixedly installed on the slider.

[0017] Preferably, the clamping assembly comprises two symmetrically distributed bolt fixing plates fixed on the bracket by bolts, and an elastic clamping plate is fixedly connected to the bolt fixing plates.

[0018] Beneficial Effects

[0019] The utility model provides a high-pressure air tightness detection device for a crane oil return hose. Compared with the prior art, it has the following beneficial effects:

[0020] 1. A high-pressure air tightness detection device for a crane oil return hose. When the hose needs to be tested for air tightness, firstly connect the hose to one end of the detection tube through a bandage, and place the hose on a conveyor belt and clamp its end through a clamping assembly to make the inside of it airtight. Start the water pump to pressurize the colored liquid in the liquid tank and extract it into the hose. The air tightness is detected by observing whether there is colored liquid seeping out of the hose. If there is liquid, it means that the hose is unqualified for air tightness. If there is no bubble, it means that the hose is a qualified air tightness product. The device has a simple structure and is easy to operate. Compared with observing bubbles in water, it is more intuitive, has a high detection accuracy, and has a high product detection efficiency, saving time and effort.

[0021] 2. A high-pressure air tightness detection device for the return oil hose of a crane, the hose is placed on a conveyor belt, and the rotation of the conveyor belt can also drive the hose to move, thereby changing the clamping position of the hose by the clamping assembly to facilitate fixed-point detection of the hose leakage position, with higher flexibility. At the same time, a waste liquid recovery assembly is arranged at one end of the conveyor belt, and the waste liquid recovery assembly includes a slope and a collection box. After the detection is completed, the end of the hose is released and the liquid in the hose can be discharged into the collection box through the slope for collection, which is convenient for liquid recovery and processing after detection, and is more convenient to use. In addition, a lighting lamp is arranged on one side of the conveyor belt for auxiliary lighting when the light is insufficient, and observation is used to improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0025] In the figure: 1. frame; 2. bracket; 3. conveyor belt; 31. drive pulley; 4. liquid tank; 41. tank body; 5. high-pressure air tightness detection mechanism; 51. water pump; 52. detection tube; 6. waste liquid recovery component; 61. ramp; 62. collection box; 7. lighting; 8. sliding installation component; 81. base; 82. slide; 83. slider; 9. controller; 10. clamping component; 101. bolt fixing plate; 102. elastic splint. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3 , the utility model provides two technical solutions:

[0028] Embodiment 1:

[0029] A crane oil return hose high-pressure air tightness detection device comprises a frame 1, a bracket 2 is mounted on the frame 1, and a conveyor belt 3 is rotatably mounted on the bracket 2 for supporting and guiding the oil return hose;

[0030] A liquid tank 4 is installed on the frame 1, and a high-pressure air tightness detection mechanism 5 is installed in the liquid tank 4 for detecting the air tightness of the oil return hose;

[0031] A clamping assembly 10 is installed on the bracket 2 for clamping and fixing one end of the oil return hose;

[0032] A waste liquid recovery assembly 6 is installed at one end of the bracket 2 for discharging the liquid in the oil return hose;

[0033] An illumination lamp 7 is installed on the frame 1 and at one side of the bracket 2 . The illumination lamp 7 is driven to move horizontally by a sliding installation assembly 8 .

[0034] Embodiment 2:

[0035] The main difference from the first embodiment is:

[0036] A high-pressure air tightness detection device for a return oil hose of a crane, wherein a controller 9 is installed on a frame 1 for controlling the power components of the device, so as to facilitate automatic control of the power components and improve the degree of automation; a transmission pulley 31 is rotatably installed on a bracket 2 and located at both ends of a conveyor belt 3, and the transmission pulley 31 is connected to the conveyor belt 3 by transmission, and the transmission pulley 31 is installed at the output end of an external motor and driven to rotate by the external motor, and the rotation of the transmission pulley 31 drives the conveyor belt 3 to rotate and move the hose; a high-pressure air tightness detection mechanism 5 includes a water tank 4 fixed inside and a water tank 4 provided inside; The liquid outlet of the water pump 51 is fixedly connected with a detection tube 52, and the end of the detection tube 52 is assembled and fitted with the oil return hose through a bandage. The hose is connected to one end of the detection tube 52 through the bandage, and the hose is placed on the conveyor belt 3 and its end is clamped and fixed by the clamping assembly 10 to make its interior airtight. The water pump 51 is started to pressurize the colored liquid in the liquid tank 4 and extract it into the hose. The air tightness is detected by observing whether there is colored liquid seeping out of the hose. The tank 4 is installed with a tank body 41, and the detection tube 52 is clamped and placed inside the tank body 41. 1 is used to limit the detection tube 52; the waste liquid recovery component 6 includes a slope 61 fixed on the bracket 2 and located at one end of the conveyor belt 3 and a collection box 62 fixed on the frame 1, and the collection box 62 is located below the slope 61. After the detection is completed, the end of the hose can be released to discharge the liquid in the hose through the slope 61 to the collection box 62 for collection, which is convenient for liquid recovery after detection and more convenient to use; the sliding installation component 8 includes a base 81 fixed on the frame 1, a slide groove 82 is installed on the top of the base 81, and a slider 83 is slidably connected in the slide groove 82. The bright lamp 7 is fixedly mounted on the slider 83. The lamp 7 can be used for auxiliary lighting when the light is insufficient. Observation is helpful to improve the detection accuracy. The sliding connection between the slider 83 and the slide groove 82 is helpful to adjust the position of the lamp 7. The clamping assembly 10 includes two symmetrically distributed bolt fixing plates 101 fixed to the bracket 2 by bolts. The bolt fixing plates 101 are fixedly connected with elastic clamping plates 102. The elastic clamping plates 102 are fixed to the bracket 2 by the bolt fixing plates 101. The end of the hose can be clamped and fixed by the two elastic clamping plates 102.

[0037] When the high-pressure air tightness detection device for the oil return hose of a crane is used, when the air tightness of the hose needs to be detected, the hose is firstly connected to one end of the detection tube 52 through a bandage, and the hose is placed on the conveyor belt 3 and its end is clamped and fixed by the clamping assembly 10 to make the inside of it airtight, and the water pump 51 is started to pressurize the colored liquid in the liquid tank 4 and extract it into the inside of the hose, and the air tightness is detected by observing whether there is colored liquid seeping out of the hose. If there is liquid, it means that the air tightness of the hose is unqualified, and if there is no liquid bubble, it means that the hose is an airtight qualified product. The structure is simple and the operation is convenient. Compared with observing bubbles in water, it is more intuitive, the detection accuracy is high, the product detection efficiency is high, and it saves time. Labor saving; in addition, the hose of the utility model is placed on the conveyor belt 3, and the rotation of the conveyor belt 3 can also drive the hose to move, and then the clamping position of the hose by the clamping assembly 10 can be changed, which is convenient for fixed-point detection of the hose leakage position, and has higher flexibility. At the same time, a waste liquid recovery assembly 6 is arranged at one end of the conveyor belt 3, and the waste liquid recovery assembly 6 includes a slope 61 and a collection box 62. After the detection is completed, the end of the hose can be released and the liquid in the hose can be discharged into the collection box 62 through the slope 61 for collection, which is convenient for liquid recovery and processing after detection, and is more convenient to use. In addition, a lighting lamp 7 is arranged on one side of the conveyor belt 3, which can be used for auxiliary lighting when the light is insufficient, and observation is used to improve the detection accuracy.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane oil return hose high pressure air tightness detection device, comprising a frame (1), characterized in that: A bracket (2) is installed on the frame (1), and a conveyor belt (3) is rotatably installed on the bracket (2) for supporting and guiding the oil return hose; A liquid tank (4) is installed on the frame (1), and a high-pressure air tightness detection mechanism (5) is installed in the liquid tank (4) for detecting the air tightness of the oil return hose; The bracket (2) is provided with a clamping assembly (10) for clamping and fixing one end of the oil return hose; A waste liquid recovery assembly (6) is installed at one end of the bracket (2) for discharging liquid in the oil return hose; A lighting lamp (7) is installed on the frame (1) and located on one side of the bracket (2); the lighting lamp (7) is driven to move horizontally by a sliding mounting assembly (8).

2. A crane oil return hose high pressure air tightness detection device according to claim 1, characterized in that: A controller (9) is installed on the frame (1) for controlling the electrical components of the device.

3. The high-pressure air tightness detection device for the oil return hose of a crane according to claim 1 is characterized in that: Transmission pulleys (31) are rotatably mounted on the support (2) and located at both ends of the conveyor belt (3). The transmission pulleys (31) are transmission-connected to the conveyor belt (3). The transmission pulleys (31) are mounted at the output end of an external motor and are driven to rotate by the external motor.

4. The high-pressure air tightness detection device for the oil return hose of a crane according to claim 1 is characterized in that: The high-pressure air tightness detection mechanism (5) comprises a water pump (51) fixed inside the liquid tank (4); the liquid outlet of the water pump (51) is fixedly connected to a detection tube (52); the end of the detection tube (52) is assembled and bonded to the oil return hose through a bandage.

5. A crane oil return hose high pressure air tightness detection device according to claim 4, characterized in that: A tank body (41) is mounted on the liquid tank (4), and the detection tube (52) is clamped and placed inside the tank body (41).

6. The high-pressure air tightness detection device for the oil return hose of a crane according to claim 1 is characterized in that: The waste liquid recovery component (6) comprises a slope (61) fixed on the bracket (2) and located at one end of the conveyor belt (3), and a collection box (62) fixed on the frame (1), wherein the collection box (62) is located below the slope (61).

7. The high-pressure air tightness detection device for the oil return hose of a crane according to claim 1 is characterized in that: The sliding installation assembly (8) comprises a base (81) fixed on the frame (1), a slide groove (82) is installed on the top of the base (81), a slider (83) is slidably engaged in the slide groove (82), and the lighting lamp (7) is fixedly mounted on the slider (83).

8. The high-pressure air tightness detection device for the oil return hose of a crane according to claim 1 is characterized in that: The clamping assembly (10) comprises two symmetrically distributed bolt fixing plates (101) fixed to the bracket (2) by means of bolts, and an elastic clamping plate (102) is fixedly connected to the bolt fixing plates (101).

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