Expansion equipment for water hose joint

Abstract

The utility model relates to expansion equipment for a water hose joint, which comprises a rack, a control module, a pressure expansion module and an adjusting assembly, the pressure expansion module comprises an expansion tool and expansion power, the expansion power is in transmission connection with the expansion tool and is used for providing expansion pressure required in the expansion process, the expansion power is connected with the control module, and the adjusting assembly is used for adjusting the expansion pressure required in the expansion process. The adjusting assembly is connected with the control module and used for adjusting the expansion pressure of the pressure expansion module. The detection device is arranged on the pressure expansion module, connected with the control module and used for detecting the expansion pressure of the pressure expansion module, and the display device is connected with the control module and used for displaying the expansion pressure. The expansion equipment is more convenient to use, the expansion pressure can be adjusted according to actual requirements, the universality is better, the press-fitting effect can be effectively guaranteed under different expansion pressure requirements, and the market requirements are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of water hose joint press-fitting, in particular to an expansion and tightening device for water hose joints. Background Art

[0002] The existing pipe network usually includes a delivery pump, a water hose, and a joint (water hose joint) for connecting the water hose. When laying the pipe network, it is usually necessary to connect the joint at the end of the water hose so that two adjacent water hoses can be quickly connected through the cooperation of the joints. Therefore, the existing joints are usually equipped with a connection part for connecting the water hose. The connection part has a variety of structures due to the changes in the joint structure. For example, in some joints (such as inner buckle joints), the connection part is usually constructed at one end of the joint and is constructed as a tubular structure, and a number of external pipe teeth for increasing friction are also constructed on the outer surface of the tubular structure. During assembly, the connection part at one end of the joint is inserted into the water hose so that one end of the water hose is sleeved on the connection part, and then it is locked with fasteners such as steel wire, iron wire, and clamps, so that the water hose and the joint can be firmly connected together. For another example, in some other joints (such as the deep forest water hose joint), the connection part is usually constructed inside the joint, and the connection part usually includes an internal tube tooth for increasing friction; during assembly, one end of the water hose is inserted into the joint, and a copper sleeve and other components are arranged inside the water hose, so that the water hose is clamped between the joint and the copper sleeve, and then the copper sleeve needs to be tightened by using an expansion device to expand the copper sleeve, so that the deformation of the copper sleeve can be used to press the water hose into the inside of the joint, thereby achieving the purpose of firmly connecting the water hose and the joint.

[0003] In practice, for different types of hoses and joints, due to different delivery pressures, the required tightening pressures when using tightening equipment to press-fit hoses and joints are also different; for the same type of hoses and joints, when used in different occasions, the required tightening pressures when using tightening equipment to press-fit hoses and joints may also be different, and the tightening pressure is related to the press-fitting effect of the hose and the joint. When the tightening pressure does not reach the preset value, the connection between the hose and the joint is not reliable, and it is easy to leak, fall off, and other problems. However, the existing tightening equipment can usually only meet a certain set tightening pressure, and there is a problem of poor versatility; and in actual application, the user is not clear whether the tightening equipment has reached the required tightening pressure during the tightening process, so the press-fitting effect of the hose and the joint cannot be guaranteed. In addition, the existing tightening equipment also has the problem of inconvenient calibration. Therefore, it is urgent to provide a tightening equipment that is more convenient to use and can guarantee the press-fitting effect under different tightening pressure requirements. Summary of the invention

[0004] The first aspect of the utility model is to solve the above technical problems and provide a tightening device which is more convenient to use, the tightening pressure can be adjusted according to actual needs, and the pressing effect can be guaranteed under different tightening pressure requirements. The main concept is:

[0005] A tightening device for a hose joint, comprising a frame,

[0006] Control module,

[0007] The pressure expansion module includes an expansion tool and an expansion power. The expansion power is connected to the expansion tool for providing the expansion pressure required for the expansion process. The expansion power is connected to the control module.

[0008] The regulating component is connected to the control module and is used to adjust the expansion pressure of the pressure expansion module.

[0009] A detection device, which is arranged in the pressure expansion module and connected to the control module, is used to detect the expansion pressure of the pressure expansion module, and

[0010] Display device, the display device is connected to the control module and is used to display the tightening pressure. In this solution, by configuring the pressure tightening module, the pressure tightening module can be used to provide tightening pressure for the tightening process of the water hose and the joint, and the water hose and the joint are pressed together under the action of the tightening pressure, so as to achieve the purpose of connecting the water hose and the joint; by configuring the tightening power, and connecting the control module to the tightening power, the control module can be used to control the tightening power, so as to achieve the purpose of controlling the tightening pressure; by configuring the tightening tool, the tightening tool can be used to position and limit the water hose, copper sleeve and joint, so as to ensure that before the tightening operation begins, the water hose, copper sleeve and joint are accurately positioned at the predetermined position, so as to ensure that after the tightening operation begins, the tightening and pressing work of the water hose and the joint can be completed smoothly; by configuring the adjustment component, and connecting the control module to the adjustment component, the user can change the size of the target pressure through the adjustment component according to actual needs; by configuring the detection device, and setting the detection device in the pressure tightening module, the detection device can be used to detect the tightening pressure provided by the pressure tightening module, and at the same time, the detection device is connected to the control module. The invention relates to a device for controlling a plurality of expansion devices, a plurality of expansion devices, and a plurality of expansion devices. The plurality of expansion devices are connected to the control module so that the detected actual expansion pressure can be fed back to the control module so that the control module can accurately control the size of the actual expansion pressure; through the mutual cooperation of the control module, the expansion power, the adjustment component and the detection device, in the actual use process, the control module can control the expansion power according to the preset target pressure of the adjustment component, so that the actual expansion pressure provided by the pressure expansion module can reach the preset target pressure, and can automatically stop the continuous pressurization when the target pressure is reached, which is not only conducive to more accurate control of the expansion pressure in the expansion process, but also conducive to accurately meeting the needs of different expansion pressures, and is conducive to achieving better expansion effects, avoiding water leakage, shortening of service life and other problems; by configuring a display device and connecting the display device to the control module, so that the preset target pressure and the actual expansion pressure and other parameters can be displayed by the display device, it is not only convenient for users to adjust and preset the target pressure, but also convenient for users to check whether the actual expansion pressure reaches the target pressure during the expansion process, making the use process more convenient. Compared with the existing expansion devices, the present expansion device is more convenient to use and has better versatility. The expansion pressure can be adjusted according to actual needs, and the pressing effect can be effectively guaranteed under different expansion pressure requirements, which better meets market demand.

[0011] Preferably, the display device is a digital tube or a display screen.

[0012] Preferably, two display devices are included, and the two display devices are respectively connected to the control module, one display device is used to display the preset target pressure, and the other display device is used to display the actual tightening pressure. It is not only convenient for the user to accurately adjust the target pressure, but also convenient for the user to check and compare various parameters at a glance, making it more convenient to use.

[0013] Preferably, the detection device is a pressure sensor.

[0014] In order to solve the problem of easy adjustment, preferably, the adjustment component includes a knob module and a confirmation module, wherein the knob module and the confirmation module are respectively connected to the control module, the knob module is used to adjust the size of the target pressure, and the confirmation module is used to confirm the start and end of the adjustment. Through the cooperation of the knob module and the confirmation module, the adjustment process is more accurate and convenient.

[0015] Preferably, the knob module adopts a rotary encoder, and the confirmation module adopts a button.

[0016] To simplify the structure, preferably, the adjustment component uses a rotary coding switch. The rotary coding switch has both a rotation function and a function of confirming the start and end of the adjustment process. It is an integrated device that is conducive to simplifying the structure.

[0017] In order to solve the problem of easy assembly, the rack further includes a frame for bearing and a shell arranged on the frame, the shell is configured with a window, a panel for covering the window is detachably installed in the window, the adjustment component is installed on the panel, a through hole for adapting the display device is configured on the panel, and the display device is arranged at the position corresponding to the through hole. By configuring the panel, the adjustment component and the display device can be installed and configured, which is conducive to modularization; by configuring the window for adapting the panel on the shell, the panel can be detachably installed at the window, which is convenient for installing and disassembling the entire panel.

[0018] The second aspect of the utility model is to solve the problem of facilitating the adjustment and control of the tightening pressure. Furthermore, the tightening power includes an oil cylinder and a hydraulic station. The hydraulic station is connected to the oil cylinder through a pipeline. The output shaft of the oil cylinder is connected to the tightening tool through transmission. The detection device is arranged in the pipeline or hydraulic station for detecting the oil pressure. The hydraulic station is connected to the control module. In this scheme, the oil cylinder and the hydraulic station are arranged in the tightening power so that the oil pressure can be used to drive the oil cylinder to move, thereby driving the tightening tool to perform the tightening operation; the size of the oil pressure is directly related to the actual tightening pressure; at the same time, the detection device is arranged in the pipeline or hydraulic station so that the oil pressure can be detected by the detection device, so that the actual tightening pressure can be obtained more conveniently and accurately; finally, the hydraulic station is connected to the control module so that the control module can be used to directly control the size of the oil pressure output by the hydraulic station, and finally the purpose of more convenient adjustment and control of the tightening pressure is achieved.

[0019] For ease of use, further, the expansion fixture is arranged at the end of the frame, and the panel is arranged on the side of the frame.

[0020] Furthermore, the expansion fixture comprises a sleeve fixedly mounted on the frame and an expansion mechanism adapted to the sleeve, wherein the sleeve is used for axially positioning the joint, the sleeve is configured with a center hole, and the center hole communicates with the inner side and the outer side of the frame;

[0021] The expansion mechanism is arranged on the outside of the frame, and the expansion mechanism is connected to the expansion power transmission through the center hole. The expansion mechanism is used to expand in the radial direction of the center hole under the drive of the expansion mechanism. By configuring the sleeve, the sleeve is used to axially locate and constrain the joint, so that the position of the joint can be kept consistent during each press-fitting process, so as to achieve a better press-fitting effect; by constructing a center hole in the sleeve, the center hole connects the inside and outside of the frame, so that the expansion mechanism arranged on the outside can be connected to the internal expansion power transmission through the center hole, which is convenient for assembly and convenient for using the internal expansion power to drive the external expansion mechanism to expand in the radial direction of the center hole, so as to squeeze the copper sleeve from the inside, so that the copper sleeve is radially deformed, and the deformation of the copper sleeve is used to press the water hose into the inside of the joint, so as to achieve the purpose of reliably connecting the water hose and the joint.

[0022] In order to solve the problem of tightening the water hose and the joint from the inside, further, the tightening mechanism also includes an expansion structure and an expansion rod adapted to the expansion structure, wherein a circle of radially arranged guide holes is constructed along the circumferential direction of the sleeve, the expansion structure includes a reset spring and a plurality of tightening blocks, one end of each tightening block is respectively constructed with a guide column adapted to the guide hole, each tightening block is respectively constrained to the sleeve by radial movement through the cooperation of the guide column and the guide hole, each tightening block together forms an annular structure, and the reset spring is sleeved on the outside of the annular structure;

[0023] The shaft sleeve and the expansion structure are respectively sleeved on the expansion rod, the expansion rod is equipped with a tapered rod section, the expansion rod is connected to the expansion power transmission, the expansion power is used to drive the expansion rod to axially expand and contract, and the expansion rod drives the expansion structure to expand radially through the tapered rod section. In order to drive the copper sleeve to expand through the radial expansion of the expansion structure, the purpose of using the copper sleeve to expand the hose and the joint is achieved.

[0024] To solve the problem of adapting to the Shenlin water hose joint, further, the shaft sleeve is also configured with a positioning groove adapted to the buckle in the Shenlin water hose joint. When in use, the buckle in the Shenlin water hose joint can be inserted into the corresponding positioning groove to more quickly position the joint axially.

[0025] To solve the problem of easy movement and transfer, further, the bottom of the frame is also equipped with at least two wheels, so that the whole device can be moved by the wheels, which is conducive to moving and transferring the device on site.

[0026] Furthermore, it also includes a power module and a socket, wherein the power module includes a rechargeable battery, the rechargeable battery is connected to the socket, and the rechargeable battery is used to provide electrical energy. This not only facilitates the use of the tensioning device, but also enables the tensioning device to be applied to more occasions.

[0027] Compared with the prior art, the expansion device for water hose joints provided by the utility model is not only more convenient to use, but also can adjust the expansion pressure according to actual needs, has better versatility, and can effectively guarantee the pressing effect under different expansion pressure requirements, thus better meeting market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is one of the structural schematic diagrams of a tightening device provided in an embodiment of the utility model.

[0030] Figure 2 for Figure 1 The front view of the device is shown without the housing.

[0031] Figure 3 A schematic structural diagram of a shaft sleeve in a tightening device provided in an embodiment of the utility model.

[0032] Figure 4 A schematic structural diagram of an expansion block in an expansion device provided in an embodiment of the utility model.

[0033] Figure 5 A schematic structural diagram of an expansion rod in an expansion device provided in an embodiment of the utility model.

[0034] Figure 6 A schematic structural diagram of a tightening mechanism in an tightening device provided in an embodiment of the utility model.

[0035] Figure 7 The utility model is a structural schematic diagram of an existing deep forest water hose joint.

[0036] Figure 8 A schematic diagram of the structure of the expansion device provided in an embodiment of the utility model after placing the copper sleeve and the joint, without showing the water hose.

[0037] Fig. 9The second structural schematic diagram of a tightening device provided in an embodiment of the utility model does not show the light-transmitting plate.

[0038] Fig.10 for Fig. 9 Schematic diagram of the local structure at the middle panel.

[0039] Fig.11 A schematic diagram of the local structure at a window in a tightening device provided in an embodiment of the utility model.

[0040] Description of the markings in the figure:

[0041] Frame 1, frame 11, shell 12, window 121, connecting plate 122, connecting hole 123, wheel 13, seat cushion 14;

[0042] The expansion tool 2, the sleeve 21, the center hole 211, the positioning groove 212, the annular protrusion 213, the guide hole 214, the expansion structure 22, the expansion block 221, the guide column 222, the return spring 223, the expansion rod 23, and the tapered rod section 231;

[0043] Hydraulic station 31, oil cylinder 32;

[0044] Display device 41, adjustment component 42, power display device 43, start / stop button 44, power button 45, socket 46;

[0045] Panel 5, through hole 51;

[0046] Deep forest hose connector 7, internal pipe thread 71, buckle 72, boss 73, copper sleeve 74;

[0047] Fastener 8;

[0048] Power module 9. DETAILED DESCRIPTION

[0049] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0050] Example 1

[0051] This embodiment provides a tightening device for a hose joint, including a frame 1, a control module, a pressure tightening module, an adjustment component 42, a detection device and a display device 41, wherein:

[0052] In implementation, the frame 1 may only include the frame 11 so as to utilize the frame 11 to bear the load. In other preferred embodiments, for example Figure 1 and Figure 2 As shown, the frame 1 includes a frame 11 for bearing and a shell 12 arranged outside the frame 11 .

[0053] In this embodiment, the pressure expansion module is mainly used to provide expansion pressure for the expansion process of the water hose and the joint, and to press the water hose and the joint together under the action of the expansion pressure, so as to achieve the purpose of connecting the water hose and the joint. During implementation, the pressure expansion module includes an expansion tool 2 and an expansion power, which is connected to the expansion tool 2 in a transmission manner to provide the expansion pressure required for the expansion process; the expansion power is connected to the control module so that the expansion power can be controlled by the control module to achieve the purpose of controlling the expansion pressure. One of the main functions of the expansion tool 2 is to position and limit the water hose, copper sleeve 74 and the joint, to ensure that before the expansion operation begins, the water hose, copper sleeve 74 and the joint are accurately positioned at the predetermined position, so as to ensure that after the expansion operation begins, the expansion and pressing work of the water hose and the joint can be completed smoothly; the second main function of the expansion tool 2 is to convert the force transmitted by the expansion power into an expansion force, so as to drive the copper sleeve 74 to expand and deform, so as to achieve the purpose of expansion.

[0054] As an example, in this embodiment, if Figure 1 and Figure 2 As shown, the expansion tool 2 includes a sleeve 21 fixedly mounted on the frame 1 and an expansion mechanism adapted to the sleeve 21, wherein the sleeve 21 is used to axially locate and constrain the joint, so that the position of the joint can be kept consistent during each press-fitting process, so as to achieve a better press-fitting effect. Figure 3 As shown, the sleeve 21 is constructed with a center hole 211, which connects the inner side and the outer side of the frame 1, so that the expansion mechanism arranged on the outer side can be connected to the internal expansion power through the center hole 211, which is convenient for assembly and for using the internal expansion power to drive the external expansion mechanism to expand along the radial direction of the center hole 211. Figure 1 and Figure 6 As shown, the expansion mechanism is arranged on the outside of the frame 1, and the expansion mechanism is connected to the expansion power transmission via the center hole 211. The expansion mechanism is used to expand along the radial direction of the center hole 211 under the drive of the expansion mechanism, so as to squeeze the copper sleeve 74 from the inside, so that the copper sleeve 74 is radially deformed, and the deformation of the copper sleeve 74 is used to press the water hose into the inside of the joint, so as to achieve the purpose of reliably connecting the water hose and the joint.

[0055] More specifically, in this embodiment, the expansion mechanism further includes an expansion structure 22 and an expansion rod 23 adapted to the expansion structure 22. Figure 3-Figure 8 As shown, a circle of radially arranged guide holes 214 is constructed along the circumferential direction of the sleeve 21. In a preferred embodiment, the side of the sleeve 21 facing away from the frame 1 is also constructed with an outwardly protruding annular protrusion 213, which is coaxial with the center hole 211. The guide hole 214 can be constructed on the annular protrusion 213, which is more convenient for processing and forming the guide hole 214.

[0056] like Figure 3-Figure 6 As shown, the expansion structure 22 includes a return spring 223 and a plurality of expansion blocks 221. The number of the expansion blocks 221 is the same as the number of the guide holes 214. One end of each expansion block 221 is respectively configured with a guide column 222 adapted to the guide hole 214. Figure 4 As shown, during assembly, each expansion block 221 is constrained to move radially on the sleeve 21 through the cooperation between the guide column 222 and the guide hole 214, and each expansion block 221 together forms a ring structure, as shown in FIG. Figure 6 As shown, the return spring 223 is sleeved on the outer side of the annular structure. The number of the return spring 223 can be one, two or more, so as to provide the power required for the expansion structure 22 to automatically contract.

[0057] like Figure 1 and Figure 6 As shown, the sleeve 21 and the expansion structure 22 are respectively sleeved on the expansion rod 23, that is, the expansion rod 23 passes through the middle of the sleeve 21 and the expansion structure 22, so that the expansion rod 23 is connected to the expansion power transmission. At the same time, the expansion rod 23 is also configured with a tapered rod section 231, and the cross-sectional area of ​​the tapered rod section 231 gradually increases in the direction away from the sleeve 21, as shown in FIG. Figure 1 and Figure 6 As shown. Of course, during implementation, the entire expansion rod 23 can be constructed as a conical rod structure. When in use, the expansion power is used to drive the expansion rod 23 to axially expand (i.e., along the central axis direction of the sleeve 21), and the moving expansion rod 23 can drive the expansion structure 22 to expand radially through the conical rod section 231, so as to drive the copper sleeve 74 to expand through the radial expansion of the expansion structure 22, so as to achieve the purpose of using the copper sleeve 74 to expand the water hose and the joint. That is, when the expansion rod 23 moves in a direction close to the sleeve 21, the conical rod section 231 drives the expansion structure 22 to expand radially so as to expand the water hose and the joint; when the expansion rod 23 moves in a direction away from the sleeve 21, the expansion structure 22 shrinks synchronously under the action of the reset spring 223, so as to withdraw from the expanded joint and facilitate the removal of the joint.

[0058] In implementation, the tightening power has multiple implementations. For example, in one implementation, the tightening power can be a motor, which can be connected to the tightening rod 23 through an existing transmission mechanism to drive the tightening rod 23 to extend and retract. For another example, in the preferred implementation provided in this embodiment, the tightening power can include an oil cylinder 32 and a hydraulic station 31, such as Figure 2 As shown, the oil cylinder 32 and the hydraulic station 31 can be arranged in the frame 1. The hydraulic station 31 is connected to the oil cylinder 32 through a pipeline to provide hydraulic oil to the oil cylinder 32. The output shaft of the oil cylinder 32 can be connected to the expansion rod 23 through a coupling or other connecting parts. The hydraulic station 31 can adopt an existing small hydraulic station 31, which is not only conducive to the miniaturization of the equipment, but also makes the volume of the equipment smaller. It can not only be placed on a fire truck, but also makes it more convenient for the equipment to be used outdoors, especially at outdoor fire scenes.

[0059] The expansion device can be applied to all hoses and joints that need to be connected by internal expansion. In the field of firefighting, the deep forest hose joint 7 is a commonly used joint. The joint is a cylindrical structure, and the interior of the joint is provided with a connecting part, and the connecting part is provided with an internal pipe tooth 71 for increasing friction. Figure 7 As shown, the side surface of one end of the connector is configured with two buckles 72, and the two buckles 72 are arranged opposite to each other. Figure 7 As shown, at the same time, the side of the end is also configured with two bosses 73 adapted to the buckle 72, and the two bosses 73 are also arranged oppositely. To be suitable for the joint of this structure, in a further embodiment, the sleeve 21 is also configured with a positioning groove 212 adapted to the buckle 72 in the deep forest hose joint 7, as shown in FIG. Figure 3 , Figure 7 and Figure 8 As shown, when in use, the buckle 72 in the deep forest hose connector 7 can be inserted into the corresponding positioning groove 212, such as Figure 8 as shown, for faster axial positioning of the connector.

[0060] In this embodiment, the detection device is arranged in the pressure expansion module, the detection device is connected to the control module, and the detection device is used to detect the expansion pressure provided by the pressure expansion module, and feed back the detected actual expansion pressure to the control module, so that the control module can accurately control the size of the actual expansion pressure. In this embodiment, the control module can use an existing control chip and / or control circuit, etc., which will not be repeated here. When the expansion power adopts a motor, the control module is connected to the motor to control the motor. At this time, the detection device can preferably use a torque sensor, so that the torque sensor can be used to detect the torque output by the motor. The torque is associated with the expansion pressure, so that the actual expansion pressure can be effectively detected. Of course, in some cases, the detection device can also use a pressure sensor. When the expansion power adopts a hydraulic station 31, the control module is connected to the hydraulic station 31 to control the output pressure of the hydraulic station 31. At this time, the detection device can preferably use a pressure sensor, and the detection device can be arranged in a pipeline or a hydraulic station 31, so that the detection device can be used to detect the oil pressure of the hydraulic oil. The oil pressure of the hydraulic oil is associated with the expansion pressure, so that the actual expansion pressure can be effectively detected.

[0061] In this embodiment, the adjustment component 42 is connected to the control module, and the adjustment component 42 is used to adjust the expansion pressure of the pressure expansion module, so that the user can change the size of the target pressure through the adjustment component 42 according to actual needs. In implementation, the adjustment component 42 may include a knob module and a confirmation module, and the knob module and the confirmation module are respectively connected to the control module, wherein the knob module is mainly used to adjust the size of the target pressure, and the confirmation module is mainly used to confirm the start of adjustment and the end of adjustment. At this time, the knob module can adopt a rotary encoder, and correspondingly, the confirmation module can adopt an existing button. Based on this, when the user needs to adjust the target pressure according to actual needs, the user can first press the button, and the button will transmit a pressing signal to the control module, indicating that the user is going to start adjusting the target pressure; then, the user can rotate the knob module to adjust the size of the target pressure by rotating the knob module; when the adjustment is in place, the user can press the button again, and the button will transmit a pressing signal to the control module, and the control module will automatically record the current target pressure, and can generate a corresponding control strategy according to the target pressure to control the expansion power to ensure that the expansion pressure in the expansion process can reach and stop at the target pressure. In addition, during implementation, the adjustment component 42 may also preferably use a rotary coding switch, such as Fig. 9 and Fig.10 As shown, the rotary coding switch has both a rotation function to adjust the target pressure and a function to confirm the start and end of the adjustment process. It is an integrated device, which is conducive to simplifying the structure.

[0062] In this embodiment, the display device 41 is connected to the control module, and the display device 41 is used to display the tightening pressure. In implementation, the display device 41 has multiple implementations, for example, the display device 41 can use a conventional display screen, or can preferably use a digital tube, such as Fig. 9 and Fig.10 As shown, the display effect of the digital tube is better and more eye-catching, and the cost of the digital tube is lower. Of course, in implementation, the display device 41 can also be a touch screen. The number of display devices 41 can be determined according to actual needs, and one, two or more display devices 41 can be configured. In the preferred implementation provided in this embodiment, two display devices 41 are included, such as Fig. 9 and Fig.10 As shown, two display devices 41 are respectively connected to the control module, one of which is used to display the preset target pressure. When the user rotates the adjustment component 42, the value on the display device 41 changes synchronously; the other display device 41 is used to display the actual tightening pressure. During the tightening process, the value on the display device 41 changes synchronously until the tightening power stops and continues to pressurize. By configuring two display devices 41, it is not only convenient for the user to accurately adjust the target pressure, but also convenient for the user to view and compare various parameters at a glance, making it more convenient to use. As an example, Fig. 9 and Fig.10 As shown, the two display devices 41 are respectively digital tubes.

[0063] In this embodiment, through the mutual cooperation of the control module, the tightening power, the adjustment component 42 and the detection device, in actual use, the control module can control the tightening power according to the preset target pressure of the adjustment component 42, so that the actual tightening pressure provided by the pressure tightening module can reach the preset target pressure, and can automatically stop the continuous pressurization when the target pressure is reached, which is not only conducive to more accurate control of the tightening pressure in the tightening process, but also conducive to accurately meeting the needs of different tightening pressures, and is conducive to achieving better tightening effects, avoiding water leakage, shortening of service life and other problems. By configuring the display device 41 and connecting the display device 41 to the control module, so that the preset target pressure and actual tightening pressure and other parameters are displayed by the display device 41, it is not only convenient for users to adjust and preset the target pressure, but also convenient for users to check whether the actual tightening pressure reaches the target pressure during the tightening process, and it is also convenient for users to calibrate the device, making the use process more convenient.

[0064] In implementation, the tensioning power and control modules can be respectively arranged in the housing 12 of the rack 1, so that the housing 12 can be used for isolation and protection. The adjustment component 42 and the display device 41 need to be arranged in a place convenient for the user to operate and view. In implementation, the adjustment component 42 and the display device 41 can be respectively arranged in the housing 12 of the rack 1. However, in a preferred embodiment, as Fig.11 As shown, the housing 12 is configured with a window 121, and a panel 5 for shielding the window 121 is detachably installed in the window 121, as shown in FIG. Figure 9-11 As shown, the adjustment component 42 can be installed on the panel 5 to achieve modularization and facilitate the installation and removal of the entire panel 5. The display device 41 can be installed on the panel 5, or on the internal support plate, which can be directly or indirectly fixed to the frame 11. The support plate can be a common bracket or a circuit board in the control module. In this case, the panel 5 is configured with a through hole 51 adapted to the display device 41, as shown in FIG. Fig. 9 and Fig.11 As shown, the display device 41 can be arranged at the position corresponding to the through hole 51. In implementation, the panel 5 can be fixed to the frame 11 of the frame 1 or the shell 12 of the frame 1 by the fastener 8. As an example, in this embodiment, the shell 12 at the window 121 is bent inward to form the side wall of the window 121, such as Fig.11 As shown, the connecting plate 122 is bent inside, and the connecting plate 122 is configured with a plurality of connecting holes 123. Correspondingly, the panel 5 is configured with a plurality of matching holes adapted to the connecting holes 123. Finally, the panel 5 is detachably fixed to the connecting plate 122 by fasteners 8 adapted to the connecting holes 123 and the matching holes, as shown in FIG. Fig. 9 and Fig.10 As shown, the structure is simple and reliable, and it does not take up more space, which is conducive to the miniaturization of the device. In addition, there is a gap between the outer surface of the panel 5 and the outer surface of the housing 12, that is, the panel 5 is recessed in the housing 12, so that the adjustment component 42 and the display device 41 can be installed in the window 121, as shown in FIG. Fig. 9 and Fig.10 As shown, to reduce the probability of false triggering.

[0065] In a more perfect solution, a light-transmitting plate is further provided at the through hole 51, and the light-transmitting plate completely covers the through hole 51, which can play a role of waterproofing and dustproofing, further protecting the display device 41 and improving reliability.

[0066] For ease of use, in this embodiment, the expansion tool 2 is arranged at the end of the frame 1, and the panel 5 is arranged on the side of the frame 1, such as Fig. 9 shown.

[0067] In order to facilitate the movement and transfer of the device, at least two wheels 13 are also configured at the bottom of the frame 1. Figure 1 and Fig. 9 As shown, the entire device can be moved by wheels 13, which is conducive to moving and transferring the device on site, so that the device can be more conveniently used in fire stations, training bases, fire scenes and other occasions.

[0068] In a more perfect embodiment, the tightening device further comprises a power module 9 and a socket 46. The power module 9 can be arranged inside the frame 1. The power module 9 comprises a rechargeable battery. The rechargeable battery is connected to the socket 46. The rechargeable battery is used to provide electrical energy. The socket 46 can be arranged on the housing 12, such as Figure 2 As shown, it can also be arranged inside the rack 1, and the power module 9 is connected to the electrical components such as the tensioning power and the control module to provide power for the electrical components in the equipment. When in use, the mains can be connected through the socket 46 to charge the rechargeable battery in the power module 9. The configuration of the rechargeable battery allows the tensioning device to be used in places such as fire stations and training grounds where it is convenient to connect to the mains, and can also be used outdoors, at fire scenes, and other places where it is inconvenient to connect to the mains, so that the tensioning device can be used in more occasions. In implementation, the socket 46 can preferably use the aviation socket 46.

[0069] In a more complete solution, a power display device 43 is also included, such as Fig. 9 and Fig.10 As shown, the power display device 43 can be arranged on a circuit board in the control module, and the power display device 43 is located at a position corresponding to the through hole 51, such as Fig. 9 and Fig.10 As shown, the power display device 43 is connected to the control module and is used to display the remaining power of the power module 9. Fig. 9 and Fig.10 As shown, the panel 5 is also provided with a power button 45, which is provided on the power supply circuit of the power module 9 to the electrical components, so as to close and disconnect the entire power supply circuit. In addition, in a more perfect solution, a start-stop button 44 is also included, which can be provided on the housing 12 of the rack 1, such as Figure 1 and Fig. 9 As shown, the start / stop button 44 is connected to the control module so that the expansion process can be started and ended by the start / stop button 44. Figure 1 and Fig. 9 As shown, the start / stop button 44 can be preferably arranged at the end of the frame 1 and near the expansion tool 2, which is more convenient for the user to operate and use.

[0070] When using the expansion device, the user can first put the internal copper sleeve 74, the water hose and the joint in place. At this time, the water hose is sandwiched between the copper sleeve 74 and the joint, and then move the joint and make the joint against the sleeve 21; the control module can drive the expansion rod 23 in the expansion mechanism to move toward the direction close to the sleeve 21 through the expansion power, and the cone rod section 231 drives the expansion structure 22 to expand radially, and the expanded expansion structure 22 drives the copper sleeve 74 to expand radially, so that the copper sleeve 74 is used to gradually press the water hose against the inner surface of the joint. When the target pressure is reached, the control module controls the expansion power to stop increasing the pressure, and can control the expansion power to maintain the current expansion pressure for 1-5s, so as to play a role in maintaining pressure, which is conducive to achieving a better press-fitting effect. Then, the control module can drive the expansion rod 23 to move in the opposite direction through the expansion power, and the expansion structure 22 shrinks synchronously under the action of the reset spring 223, so as to be separated from the copper sleeve 74, and finally remove the press-fitted joint, which is not only very convenient and efficient, but also can ensure the press-fitting effect.

[0071] Example 2

[0072] Since the embodiment 1 provides a small expansion device, the height of the expansion device is usually less than 1.5m. Therefore, in order to save more effort, the main difference between this embodiment and the above embodiment is that in the expansion device provided in this embodiment, a cushion 14 is also provided on the top of the frame 1, such as Figure 1 , Figure 2 and Fig. 9 As shown, since the expansion tool 2 is arranged at the end of the frame 1, combined with the cushion 14 configured on the top, the operator can sit and perform the press-fitting work of the hose joint, which is not only very labor-saving but also more convenient.

[0073] In order to improve the load-bearing capacity, during implementation, the seat cushion 14 can be installed on the frame 11 of the frame 1.

[0074] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A tightening device for a hose joint, characterized in that: Including rack, Control module, The pressure expansion module includes an expansion tool and an expansion power. The expansion power is connected to the expansion tool for providing the expansion pressure required for the expansion process. The expansion power is connected to the control module. The regulating component is connected to the control module and is used to adjust the expansion pressure of the pressure expansion module. A detection device, which is arranged in the pressure expansion module and connected to the control module, and is used to detect the expansion pressure of the pressure expansion module, and The display device is connected to the control module and is used to display the tightening pressure.

2. The expansion device for a hose joint according to claim 1, characterized in that: The display device is a digital tube or a display screen.

3. The expansion device for a hose joint according to claim 2, characterized in that: It comprises two display devices, which are respectively connected to the control modules, wherein one display device is used to display the preset target pressure, and the other display device is used to display the actual tightening pressure.

4. The expansion device for a hose joint according to claim 1, characterized in that: The regulating component comprises a knob module and a confirmation module, wherein the knob module and the confirmation module are respectively connected to the control module, the knob module is used to adjust the magnitude of the target pressure, and the confirmation module is used to confirm the start and end of the regulation.

5. The expansion device for a hose joint according to claim 4, characterized in that: The knob module adopts a rotary encoder, and the confirmation module adopts a button.

6. The expansion device for a hose joint according to claim 1, characterized in that: The detection device adopts a pressure sensor; The adjustment component adopts a rotary coding switch; The bottom of the frame is also provided with at least two wheels; It also includes a power module and a socket. The power module includes a rechargeable battery. The rechargeable battery is connected to the socket and is used to provide electrical energy.

7. The expansion device for a hose joint according to claim 1, characterized in that: The frame includes a frame for bearing and a shell arranged on the frame, the shell is configured with a window, a panel for covering the window is detachably installed in the window, the adjustment component is installed on the panel, a through hole adapted for the display device is configured on the panel, and the display device is arranged at a position corresponding to the through hole.

8. The expansion device for a hose joint according to claim 1, characterized in that: The expansion power includes an oil cylinder and a hydraulic station. The hydraulic station is connected to the oil cylinder through a pipeline. The output shaft of the oil cylinder is transmission-connected to the expansion tooling. The detection device is arranged in the pipeline or the hydraulic station for detecting the oil pressure. The hydraulic station is connected to the control module.

9. The expansion device for a hose joint according to any one of claims 1 to 8, characterized in that: The expansion fixture comprises a sleeve fixedly mounted on the frame and an expansion mechanism adapted to the sleeve, wherein the sleeve is used to axially position the joint, the sleeve is configured with a center hole, and the center hole communicates with the inner side and the outer side of the frame; The expansion mechanism is arranged on the outside of the frame, and is connected to the expansion power transmission via the center hole. The expansion mechanism is used to expand along the radial direction of the center hole under the drive of the expansion mechanism.

10. The expansion device for a hose joint according to claim 9, characterized in that: The expansion mechanism also includes an expansion structure and an expansion rod adapted to the expansion structure, wherein a circle of radially arranged guide holes is configured along the circumferential direction of the sleeve, the expansion structure includes a reset spring and a plurality of expansion blocks, one end of each expansion block is respectively configured with a guide column adapted to the guide hole, each expansion block is respectively constrained to be radially movable on the sleeve through the cooperation of the guide column and the guide hole, each expansion block together forms an annular structure, and the reset spring is sleeved on the outside of the annular structure; The shaft sleeve and the expansion structure are respectively sleeved on the expansion rod, the expansion rod is equipped with a tapered rod section, the expansion rod is connected to the expansion power transmission, the expansion power is used to drive the expansion rod axially to expand and contract, and the expansion rod drives the expansion structure to expand radially through the tapered rod section.

Images