Expansion equipment for water hose joint

Abstract

The utility model relates to a water hose connector expansion device which comprises a machine frame used for bearing, an expansion power device, an expansion tool arranged on the machine frame, a detection component and a detection component, the expansion tool comprises an expansion mechanism used for expanding a water hose and a connector and a shaft sleeve used for axially positioning the connector, and the expansion power device is in transmission connection with the expansion mechanism. The expansion mechanism is used for detecting whether the connector abuts against the shaft sleeve or not, the controller, the expansion power and the detection component are connected with the controller, and when the connector abuts against the shaft sleeve, the controller drives the expansion mechanism to conduct expansion action through the expansion power; the expansion equipment is smoother to operate and more convenient to use, almost has no waiting time in the press-fitting process, can effectively improve the expansion efficiency, and is beneficial to continuous and efficient expansion operation.

Description

Technical Field

[0001] The utility model relates to the technical field of water hose joint expansion, in particular to a water hose joint expansion and tightening device. Background Art

[0002] The existing pipe network usually includes a transmission power, a transmission device, and a connector for connecting the transmission device. The transmission power is usually a pump, and the transmission device is usually a pipe or a hose. The selection of the transmission device varies in different occasions. For example, in the field of firefighting, the transmission device is usually a fire hose (referred to as a hose). The structure of the connector is diverse to meet the needs of different occasions. When laying the pipe network, it is usually necessary to connect the connector at the end of the transmission device so that two adjacent transmission devices can be quickly connected through the cooperation of the connector.

[0003] In order to facilitate the connection between the conveying device and the connector, the existing connector is usually equipped with a connecting portion that is convenient for connecting the conveying device. Due to the diversity of the connector structure, the structure of the connecting portion also varies, and accordingly, the connection method between the connector and the conveying device also varies. For example, in some connectors (such as inner buckle connectors), the connecting portion is usually constructed at one end of the connector, and the connecting portion is constructed as a tubular structure, and a plurality of external tube teeth for increasing friction are also constructed on the outer surface of the tubular structure. During assembly, the connecting portion at one end of the connector is inserted into the conveying device, so that one end of the conveying device is sleeved on the connecting portion, and then it can be locked with fasteners such as steel wire, iron wire, and clamps. For another example, in some other joints (such as deep forest water hose joints), the connection part is usually constructed inside the joint, and the connection part usually includes a number of internal tube teeth for increasing friction; during assembly, one end of the conveying device is inserted into the joint, and a copper sleeve needs to be arranged inside the conveying device so that the conveying device is clamped between the joint and the copper sleeve, and then the copper sleeve is tightened by using an expansion device, so that the deformation of the copper sleeve can be used to press the conveying device into the connection part inside the joint, thereby achieving the purpose of firmly connecting the joint and the conveying device.

[0004] The expansion device of the hose joint usually includes power and an expansion mechanism. The expansion mechanism includes an expansion structure and an expansion rod adapted to the expansion structure. The expansion rod is equipped with a conical rod section. The power is connected to the expansion rod in a transmission manner to drive the expansion rod to move axially relative to the expansion structure, so that the expansion structure can be driven to expand radially by the conical rod section, so as to achieve the purpose of tightening the copper sleeve and the joint from the inside. The existing expansion equipment is usually also equipped with a starting switch, which is usually connected to the power. When in use, it is necessary to put the joint, the conveying device and the copper sleeve in place first, and then manually turn on the starting switch so that the power can drive the expansion rod to move once, thereby completing the expansion of a joint. In practice, such a design has some shortcomings. First, during the assembly process, it is necessary to stabilize the joint that has been put in place in advance by hand, and to operate the starting switch by hand, which makes the operation very troublesome and inconvenient; second, each expansion operation requires manual power start-up, resulting in very low expansion efficiency, which is not conducive to continuous and efficient expansion operations, and needs to be solved urgently. Summary of the invention

[0005] The first aspect of the utility model is to solve the problems of inconvenient operation and low expansion efficiency of existing hose joint expansion equipment, and provide an expansion equipment for press-fitting hoses and joints by expansion, which is not only smoother to operate and more convenient to use, but also can effectively improve the expansion efficiency, which is conducive to continuous and efficient expansion operations. The main concept is:

[0006] A hose joint expansion and tightening device, comprising a frame for carrying,

[0007] The tightening power is set on the frame.

[0008] The expansion tooling includes an expansion mechanism for expanding the hose and the joint and a sleeve for axially positioning the joint. The expansion power is connected to the expansion mechanism.

[0009] A detection component for detecting whether the joint abuts against the sleeve, and

[0010] The controller, the tightening power and the detection component are respectively connected to the controller. When the joint abuts against the shaft sleeve, the controller drives the tightening mechanism through the tightening power to automatically perform the tightening action. In this scheme, by configuring the tightening tool, the tightening tool can be used to position and limit the water hose, copper sleeve and joint to ensure that the positions of the water hose, copper sleeve and joint are mutually adapted; by constructing the shaft sleeve, the shaft sleeve can be used to axially position and constrain the joint, so that the position of the joint can be kept consistent during each press-fitting process to achieve a better press-fitting effect; by configuring the tightening power and the tightening mechanism, and the tightening power is connected to the tightening mechanism in a transmission manner, so that the tightening power can be used to drive the tightening mechanism to perform the tightening action; by configuring the detection component, the detection component can be used to detect whether the joint abuts against the shaft sleeve. During the assembly process, the copper sleeve and the water hose can be placed at the predetermined position of the joint first, and then the joint can be pressed against the shaft sleeve. At this time, the joint The position is adapted to the copper sleeve and the water hose in order to achieve a better pressing effect. Therefore, a detection component is configured to detect whether the joint is against the shaft sleeve. When the detection component detects the shaft sleeve, it indicates that the joint has been placed in place, and the controller can drive the tightening mechanism to automatically perform the tightening action through the tightening power, thereby quickly completing a pressing work. Compared with the prior art, this design does not require the operator to manually operate the start switch, which is not only smoother to operate and more convenient to use, but also has almost no waiting time during the pressing process, which can effectively improve the tightening efficiency and is conducive to continuous and efficient tightening operations. In addition, when using this tightening equipment, the operator can press the joint tightly against the shaft sleeve during use, which is conducive to achieving better pressing effect and pressing quality.

[0011] In order to facilitate the detection of whether the joint is installed in place, the detection component is further installed on the shaft sleeve. Since the end of the joint will be against the shaft sleeve during assembly, by installing the detection component on the shaft sleeve, the detection component is closer to the joint, and the detection component can be used to detect the end of the joint, which is conducive to the detection component being detected when the joint is installed in place, and further shortening the waiting time and improving efficiency.

[0012] In order to solve the problem of facilitating the installation of the detection component, further, the side of the sleeve facing away from the frame is a positioning surface, and the side of the sleeve is configured with a mounting groove for accommodating the detection component, and the mounting groove passes through the positioning surface, and the detection component is arranged in the mounting groove. By configuring the mounting groove and arranging the detection component in the mounting groove, the detection component will not interfere with and interfere with the axial positioning joint of the positioning surface, and by configuring the mounting groove to pass through the positioning surface, the detection component can correspond to the end of the joint, so as to more accurately detect whether the joint is placed in place.

[0013] The second aspect of the utility model aims to solve the problem of improving detection accuracy and reducing errors. Furthermore, it also includes a bracket, the detection component is installed on the bracket, the bracket is structured with an adjustment hole, the sleeve is structured with a threaded hole adapted to the adjustment hole, and the bracket is detachably installed on the sleeve through a fastener adapted to the threaded hole. In this solution, by configuring the bracket and detachably installing the bracket on the sleeve through a fastener adapted to the threaded hole, it is not only convenient to install, disassemble and replace the detection component, but also makes the position of the detection component adjustable, so that the position of the detection component can be adjusted as needed during debugging, so that the detection component can be fixed at a position that is more suitable for the joint, ensuring that when the detection component generates a signal, the joint is just put in place, so as to achieve the purpose of further improving detection accuracy and reducing errors.

[0014] Preferably, the adjustment hole is a strip hole, and the length direction of the strip hole is parallel to the axis direction of the sleeve, so that the distance between the detection component and the positioning surface can be effectively adjusted through the adjustment hole, thereby accurately controlling the distance between the detection component and the joint, so that when the detection component generates a signal, the joint is placed in place.

[0015] Preferably, threaded holes are respectively constructed on both sides of the mounting groove, and the bracket is constructed with two mutually parallel adjustment holes, which can not only constrain the bracket more stably, but also further ensure that the detection component is facing the joint.

[0016] Preferably, the detection component is a photoelectric sensor, a limit switch or a micro switch.

[0017] The third aspect of the utility model aims to solve the problem of further improving the press-fitting effect and reducing the error. Furthermore, it includes at least two detection components, each of which is evenly arranged along the circumferential direction of the sleeve, and each detection component is connected to the controller. When the controller receives the signal of each detection component, the controller drives the expansion mechanism to perform the expansion action through the expansion power. In this scheme, by configuring at least two detection components, each of which is evenly arranged along the circumferential direction of the sleeve, only when the controller receives the signal of each detection component, the controller will drive the expansion mechanism to perform the expansion action through the expansion power, so as to prevent the joint from being biased when the sleeve is used to position the joint, where one side contacts the sleeve and the other side does not contact the sleeve, and ensure that the joint can be vertically against the sleeve, so as to ensure the press-fitting effect, reduce the press-fitting error, and avoid the problem of water leakage in the joint after press-fitting.

[0018] Preferably, two detection components are included, the shaft sleeve is symmetrically structured with two mounting grooves, the two detection components are respectively mounted on two brackets, the two brackets are respectively detachably mounted on the shaft sleeve by fasteners, and the two detection components are accommodated in the two mounting grooves. Not only can the press-fitting effect be guaranteed, but the structure is simple and the cost is low.

[0019] In order to solve the problem of tightening the hose and the joint from the inside, further, the sleeve is configured with a central through hole, and the tightening mechanism also includes an expansion structure and an expansion rod adapted to the expansion structure, wherein:

[0020] 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 expansion blocks, one end of each expansion block is respectively constructed 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, and each expansion block together forms an annular structure, and the reset spring is sleeved on the outside of the annular structure;

[0021] 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.

[0022] To facilitate the processing of the guide hole, further, a side of the sleeve facing away from the frame is further configured with an annular protrusion protruding outward, the annular protrusion is coaxial with the central through hole, and the guide hole is configured on the annular protrusion. By configuring the annular protrusion protruding outward in the sleeve and configuring the guide hole on the annular protrusion, the processing and forming of the guide hole are more convenient.

[0023] In order to solve the problem of adapting to the Shenlin water hose joint, further, the 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 avoid affecting the axial positioning effect of the sleeve on the joint.

[0024] Furthermore, the expansion power includes an oil cylinder and a hydraulic station connected to the oil cylinder, and the output shaft of the oil cylinder is in transmission connection with the expansion rod, which is conducive to the miniaturization of the equipment and is more convenient for application in firefighting scenes.

[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] The fourth aspect of the utility model is to solve the problem of more labor saving. Further, a cushion is provided on the top of the frame so that the operator can sit and perform the press work, which is very labor saving.

[0027] Furthermore, it also includes a power module and a socket connected to the power module, wherein the power module is used to provide electrical energy. This not only facilitates the use of the expansion device, but also enables the expansion device to be applicable to more occasions.

[0028] Compared with the prior art, the water hose joint expansion device provided by the utility model is not only smoother to operate and more convenient to use, but also has almost no waiting time during the pressing process, which can effectively improve the expansion efficiency and is conducive to continuous and efficient expansion operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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.

[0030] Figure 1 A schematic structural diagram of a hose joint expansion device provided in an embodiment of the utility model.

[0031] Figure 2 for Figure 1 Front view of the device, without the housing shown.

[0032] Figure 3 for Figure 1 A local enlarged schematic diagram of the detection component.

[0033] Figure 4 A schematic structural diagram of a shaft sleeve in a hose joint expansion device provided in an embodiment of the utility model.

[0034] Figure 5 The present invention is a schematic structural diagram of an expansion block in a hose joint expansion device provided in an embodiment of the present invention.

[0035] Figure 6 A schematic structural diagram of an expansion rod in a hose joint expansion device provided in an embodiment of the utility model.

[0036] Figure 7 The utility model is a structural schematic diagram of an existing deep forest water hose joint.

[0037] Markings in the figure are as follows: frame 1, skeleton 11, shell 12, wheel 13, cushion 14; expansion tool 2, bushing 21, expansion structure 22, expansion rod 23, tapered rod section 24; center through hole 31, positioning surface 32, annular protrusion 33, guide hole 34, mounting groove 35, threaded hole 36, positioning groove 37; bracket 4, adjustment hole 41; expansion block 5, guide column 51, reset spring 52; hydraulic station 61, cylinder 62; detection component 7; deep forest water hose joint 8, internal pipe thread 81, buckle 82, boss 83; fastener 9. DETAILED DESCRIPTION

[0038] 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.

[0039] Example 1

[0040] This embodiment provides a hose joint expansion device, including a frame 1 for carrying, an expansion power, an expansion tool 2, a detection component 7 and a controller, wherein:

[0041] In practice, the frame 1 may only include the skeleton 11, and in the preferred embodiment, as shown in FIG. Figure 1 and Figure 2 As shown, the frame 1 includes a frame 11 and a shell 12 arranged outside the frame 11 , and the expansion power and controller etc. can be arranged in the shell 12 .

[0042] During implementation, the tightening power can be set on the frame 1, and the tightening tool 2 can be set on one side of the frame 1, such as Figure 1 and Figure 2 As shown, the expansion tool 2 includes an expansion mechanism for expanding the water hose and the joint and a sleeve 21 for axially positioning the joint. The expansion power is transmission-connected to the expansion mechanism so that the expansion power can be used to drive the expansion mechanism to perform an expansion action to achieve the purpose of press-fitting the water hose and the joint.

[0043] 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 1-Figure 4 The sleeve 21 may be a rotating body structure, and the sleeve 21 is configured with a central through hole 31 so as to allow the expansion rod 23 to pass through. Figure 4 As shown, the shaft sleeve 21 can be fixedly installed on the frame 1 , and the side of the shaft sleeve 21 facing away from the frame 1 can be called a positioning surface 32 .

[0044] like Figure 4 As shown, a circle of radially arranged guide holes 34 is constructed along the circumferential direction of the sleeve 21. In a preferred embodiment, the sleeve 21 is further constructed with an annular protrusion 33 protruding outward on one side away from the frame 1, as shown in FIG. Figure 4As shown, the annular protrusion 33 is coaxial with the central through hole 31 , and the guide hole 34 can be constructed on the annular protrusion 33 , which makes it easier to process and shape the guide hole 34 .

[0045] like Figure 1 and Figure 2 As shown, the expansion structure 22 includes a return spring 52 and a plurality of expansion blocks 5. The number of the expansion blocks 5 is the same as the number of the guide holes 34. One end of each expansion block 5 is respectively configured with a guide column 51 adapted to the guide hole 34. Figure 5 As shown, during assembly, each expansion block 5 is constrained to move radially on the sleeve 21 through the cooperation of the guide column 51 and the guide hole 34, and each expansion block 5 together forms a ring structure, as shown in FIG. Figure 1 and Figure 2 As shown, the return spring 52 is sleeved on the outside of the annular structure. The number of the return spring 52 can be one, two or more, so as to provide the power required for the automatic contraction of the expansion structure 22.

[0046] like Figure 1 and Figure 2 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, as shown in FIG. Figure 2 At the same time, the expansion rod 23 is also provided with a tapered rod section 24, and the cross-sectional area of ​​the tapered rod section 24 gradually increases in the direction away from the shaft sleeve 21, as shown in FIG. Figure 1 , Figure 2 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 24, so as to drive the copper sleeve to expand through the radial expansion of the expansion structure 22, so as to achieve the purpose of using the copper sleeve 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 24 drives the expansion structure 22 to expand radially 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 52, so as to exit the expanded joint.

[0047] In this embodiment, 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. In order to facilitate the miniaturization of the equipment and improve the tightening effect, in this embodiment, the tightening power can include an oil cylinder 62 and a hydraulic station 61 connected to the oil cylinder 62, such as Figure 2As shown, the oil cylinder 62 and the hydraulic station 61 can be arranged in the frame 1, and the output shaft of the oil cylinder 62 can be connected to the expansion rod 23 through a coupling. The hydraulic station 61 can adopt an existing small hydraulic station 61, which is not only conducive to the miniaturization of the equipment, so that the equipment can be placed on a fire truck and occupy less space, but also more convenient for the equipment to be used outdoors, especially at outdoor fire scenes.

[0048] In this embodiment, the detection component 7 is mainly used to detect whether the joint is against the sleeve 21 during the press-fitting process. Usually, if the joint has been against the sleeve 21, it means that the preliminary preparations have been completed, the water hose, copper sleeve and joint are in place, and the equipment can be started to start the tightening operation. Therefore, in this embodiment, the tightening power and the detection component 7 are respectively connected to the controller. When the joint is against the sleeve 21, the detection component 7 generates an induction signal and transmits it to the controller, and the controller can automatically drive the tightening mechanism to perform the tightening action through the tightening power. Of course, it can be understood that during implementation, when the controller receives the signal of the detection component 7, the detection component 7 can immediately control the action of the tightening mechanism, or it can delay 1-5 seconds before controlling the action of the tightening mechanism.

[0049] In implementation, the detection component 7 may be an existing photoelectric sensor, a limit switch, a micro switch, etc. In implementation, the controller may be an existing control chip or control circuit, etc., which will not be described in detail here.

[0050] During implementation, the detection component 7 can be set at a position according to actual needs, and can be installed on the frame 1 or on the shaft sleeve 21. In this embodiment, the detection component 7 is preferably installed on the shaft sleeve 21. Figure 1-Figure 4 As shown, during assembly, the end of the joint will abut against the sleeve 21. By installing the detection component 7 on the sleeve 21, the detection component 7 is brought closer to the joint, and the detection component 7 can be used to detect the end of the joint, which is beneficial for the joint to be detected by the detection component 7 when it is installed in place, thereby further shortening the waiting time and improving efficiency.

[0051] In order to facilitate the installation of the detection component 7, the side of the sleeve 21 is configured with a mounting groove 35 for accommodating the detection component 7, and the mounting groove 35 passes through the positioning surface 32. Figure 1-Figure 4 As shown, the detection component 7 can be arranged in the installation groove 35, which not only makes the detection component 7 not interfere with and interfere with the axial positioning of the joint by the positioning surface 32, but also makes the detection component 7 correspond to the end of the joint to more accurately detect whether the joint is placed in place.

[0052] During implementation, the detection component 7 can be bonded into the mounting groove 35, or can be fixed into the mounting groove 35 by a fastener 9. In order to further improve the detection accuracy and reduce the error, in a further embodiment, a bracket 4 is further included, and the detection component 7 is installed on the bracket 4, such as Figure 1-Figure 4 As shown, the bracket 4 is configured with an adjustment hole 41, such as Figure 1-Figure 3 As shown, the sleeve 21 is configured with a threaded hole 36 adapted to the adjustment hole 41, as shown in FIG. Figure 3 As shown, the bracket 4 can be detachably mounted on the shaft sleeve 21 by fasteners 9 such as bolts or screws that fit into the threaded holes 36. Such a design not only facilitates the installation, disassembly and replacement of the detection component 7, but also makes the position of the detection component 7 adjustable, so that the position of the detection component 7 can be adjusted as needed during debugging, so that the detection component 7 can be fixed at a position that is more suitable for the joint, ensuring that when the detection component 7 generates a signal, the joint is just in place, thereby achieving the purpose of further improving the detection accuracy and reducing the error.

[0053] During implementation, the adjustment hole 41 can preferably be a strip hole, and the length direction of the strip hole is parallel to the axial direction of the sleeve 21, so that the distance between the detection component 7 and the positioning surface 32 can be effectively detected through the adjustment hole 41, and any distance can be adjusted, thereby achieving precise control of the distance between the detection component 7 and the joint, so that when the detection component 7 generates a signal, the joint is placed in place.

[0054] In practice, the number of the adjustment holes 41 can be one or more, and the number of the threaded holes 36 is adapted to the adjustment holes 41. In a preferred embodiment, the two sides of the mounting groove 35 are respectively configured with threaded holes 36, such as Figure 1-Figure 3 As shown, the bracket 4 is constructed with two mutually parallel adjustment holes 41, so that the bracket 4 can be fixed to the sleeve 21 by two fasteners 9, which can not only constrain the bracket 4 more stably, but also further ensure that the detection component 7 is facing the joint.

[0055] 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 Figure 2 As shown, the entire device can be moved by wheels 13, which is beneficial for moving and transferring the device on site.

[0056] In a more perfect embodiment, the tightening device also includes a power module and a socket for connecting the power module. The power module can be arranged inside the frame, and the socket can be arranged on the outer shell or inside the frame. The power module is connected to the tightening power, detection components, etc., so as to provide power for the electrical devices in the device. The power module includes a rechargeable battery. When in use, the mains can be connected through the socket to power the rechargeable battery in the power module. The tightening device can 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 not convenient to connect to the mains. This not only makes the use of the tightening device more convenient and more efficient, but also makes the tightening device applicable to more occasions.

[0057] When using the expansion device provided in this embodiment, the internal copper sleeve and water hose can be placed at the preset position of one end of the joint. At this time, the position of the joint just fits the copper sleeve and the water hose, and the water hose is sandwiched between the copper sleeve and the joint; then move the joint and press the joint against the sleeve 21. The detection component 7 will detect the sleeve 21, indicating that the joint has been put in place. At this time, the controller can automatically drive the expansion mechanism to perform the expansion action through the expansion power, thereby quickly completing a press-fitting work. Compared with the prior art, this device does not require the operator to manually operate the start switch, which is not only more convenient to operate and use, but also more convenient to use. The press-fitting process is smoother, which can effectively improve the expansion efficiency and is conducive to continuous and efficient expansion operations. In addition, when using this expansion device, the operator can press the joint tightly against the sleeve 21, which is conducive to achieving better press-fitting effects and press-fitting quality.

[0058] It can be understood that the present 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 8 is a commonly used joint. The joint is a cylindrical structure, and a connecting part is arranged inside the joint. The connecting part is provided with an internal pipe tooth 81 for increasing friction, such as Figure 7 The side surface of one end of the connector is configured with two buckles 82, and the two buckles 82 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 83 adapted to the buckle 82, and the two bosses 83 are also arranged oppositely. In order to facilitate the application of this structure of the joint, in a further embodiment, the sleeve 21 is also configured with a positioning groove 37 adapted to the buckle 82 in the deep forest hose joint 8, as shown in FIG. Figure 4 As shown, when in use, the buckle 82 in the Shenlin hose connector 8 can be inserted into the corresponding positioning groove 37 to avoid affecting the axial positioning effect of the sleeve 21 on the connector. The expansion process is the same as before and will not be repeated here.

[0059] Example 2

[0060] In order to further improve the press-fitting effect and reduce the error, the main difference between this embodiment 2 and the above-mentioned embodiment 1 is that the expansion device provided in this embodiment includes at least two detection components 7, and each detection component 7 can be evenly arranged along the circumferential direction of the sleeve 21. Each detection component 7 is connected to the controller respectively. When the controller receives the signal of each detection component 7, the controller drives the expansion mechanism to perform the expansion action through the expansion power, thereby preventing the joint from being in a biased state in which one side contacts the sleeve 21 while the other side does not contact the sleeve 21 when the joint is positioned using the sleeve 21, ensuring that the joint can be vertically against the sleeve 21, thereby ensuring the press-fitting effect, reducing the press-fitting error, and avoiding the problem of water leakage in the joint after press-fitting.

[0061] In implementation, the number of detection components 7 can be determined according to actual needs. For example, Figure 1-Figure 4 As shown, the expansion device includes two detection components 7, and the sleeve 21 is symmetrically constructed with two mounting grooves 35, such as Figure 4 As shown, two detection components 7 are respectively mounted on two brackets 4, and the two brackets 4 are respectively detachably mounted on the shaft sleeve 21 through fasteners 9, and the two detection components 7 are accommodated in two mounting grooves 35. Not only can the press-fitting effect be guaranteed, but also the structure is simple and the cost is low.

[0062] Example 3

[0063] Since the embodiment 1 provides a small expansion device, the height of the expansion device is usually less than 1.5m. Therefore, 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 and Figure 2 As shown, since the expansion tool 2 is arranged on one side 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.

[0064] 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 hose joint expansion device, characterized in that: Including a rack for carrying, The tightening power is set on the frame. The expansion tooling includes an expansion mechanism for expanding the hose and the joint and a sleeve for axially positioning the joint. The expansion power is connected to the expansion mechanism. A detection component for detecting whether the joint abuts against the sleeve, and The controller, the tightening power and the detection component are respectively connected to the controller. When the joint abuts against the shaft sleeve, the controller drives the tightening mechanism to automatically perform the tightening action through the tightening power.

2. The hose joint expansion device according to claim 1 is characterized in that: The detection component is mounted on the shaft sleeve.

3. The hose joint expansion device according to claim 2 is characterized in that: The side of the shaft sleeve facing away from the frame is a positioning surface, and the side of the shaft sleeve is configured with a mounting groove for accommodating the detection component, the mounting groove passes through the positioning surface, and the detection component is arranged in the mounting groove.

4. The hose joint expansion device according to claim 3 is characterized in that: It also includes a bracket, the detection component is installed on the bracket, the bracket is structured with an adjustment hole, the sleeve is structured with a threaded hole adapted to the adjustment hole, and the bracket is detachably installed on the sleeve through a fastener adapted to the threaded hole.

5. The hose joint expansion device according to claim 4, characterized in that: The adjusting hole is a strip hole, and the length direction of the strip hole is parallel to the axial direction of the sleeve; Alternatively, threaded holes are respectively formed on both sides of the mounting groove, and the bracket is formed with two adjustment holes parallel to each other.

6. The hose joint expansion device according to claim 1, characterized in that: It comprises at least two detection components, each detection component is evenly arranged along the circumferential direction of the sleeve, each detection component is connected to the controller respectively, when the controller receives the signal of each detection component, the controller drives the tightening mechanism to automatically perform the tightening action through the tightening power.

7. The hose joint expansion device according to claim 6, characterized in that: It comprises two detection components, the shaft sleeve is symmetrically structured with two mounting grooves, the two detection components are respectively mounted on two brackets, the two brackets are respectively detachably mounted on the shaft sleeve through fasteners, and the two detection components are accommodated in the two mounting grooves.

8. The hose joint expansion device according to claim 1, characterized in that: The sleeve is configured with a central through hole, and the expansion mechanism further comprises 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 expansion blocks, one end of each expansion block is respectively constructed 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, and 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.

9. The hose joint expansion device according to claim 8, characterized in that: A side of the shaft sleeve facing away from the frame is also configured with an outwardly protruding annular protrusion, the annular protrusion is coaxial with the central through hole, and the guide hole is configured on the annular protrusion.

10. The hose joint expansion device according to any one of claims 1 to 9, characterized in that: The shaft sleeve is also configured with a positioning groove adapted to fit the buckle in the deep forest hose connector; The expansion power includes an oil cylinder and a hydraulic station connected to the oil cylinder, and the output shaft of the oil cylinder is transmission-connected to the expansion rod in the expansion mechanism; The bottom of the frame is also provided with at least two wheels; The detection component adopts a photoelectric sensor, a limit switch or a micro switch.

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