Remotely replaceable travel switch device and hot cell transfer system

Abstract

The invention provides a remotely replaceable travel switch device which comprises a travel switch, a switch mounting seat assembly and a mounting base, the mounting base is connected to the mounting surface of the remotely replaceable travel switch device, and the travel switch is connected to the switch mounting seat assembly to serve as an integral module which is dismounted and mounted together. The switch mounting base assembly comprises a moving mechanism, the moving mechanism can move to the fastening position and fasten the mounting base and move to the loosening position and release the mounting base, and the moving mechanism is provided with a clamping button located on the surface of the switch mounting base assembly. When the switch mounting base assembly is clamped or released, the clamping button drives the moving mechanism to reach the loosening position or the fastening position, so that the whole module can be separated from the mounting base or fixed to the mounting base. The device is safe, reliable, simple and convenient to operate and easy to replace, an operator does not need to enter a hot chamber, and replacement can be completed through a remote manipulator. The invention further provides a hot cell transfer system.

Description

Technical Field

[0001] The invention specifically relates to a travel switch device which can be replaced remotely and a hot chamber transfer system. Background Art

[0002] A hot room or equipment room is a containment equipment with a radioactive environment. In the field of nuclear material and nuclear fuel processing, many process operations need to be carried out in the hot room. Many automated equipment in the hot room require travel switches for positioning and limiting. If the travel switch fails, it needs to be repaired in time. When the equipment in the hot room needs maintenance or replacement, the robot should be used as much as possible.

[0003] The travel switch device is often used to limit the position or stroke of mechanical movement, so that the moving machine can automatically stop, reverse, change speed or automatically reciprocate at a certain position or stroke. At present, the travel switch is often connected to the mechanical equipment by threaded fastening. Conventional manipulators and other equipment have high difficulty in accurately aligning and disassembling small threaded parts, which will increase the difficulty of precise control and production input costs. If the staff enters the hot room to replace the travel switch, it is limited by space and environmental conditions, and the procedure is complicated, the operation time is long, and the risk is high. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a remotely replaceable travel switch device in view of the above-mentioned deficiencies in the prior art. The device is safe and reliable, easy to operate and easy to replace, and can be replaced by using a remote manipulator without the need for an operator to enter the hot chamber. The present invention also provides a hot chamber transfer system.

[0005] The present invention provides a remotely replaceable travel switch device, comprising a travel switch, a switch mounting seat assembly and a mounting base, wherein the mounting base is connected to the mounting surface of the remotely replaceable travel switch device, the travel switch is connected to the switch mounting seat assembly, and serves as an integral module that is disassembled and installed together, the switch mounting seat assembly comprises a moving mechanism, the moving mechanism can move to a fastening position and fasten the mounting base, and move to a loosening position and release the mounting base, the moving mechanism is provided with a clamping button located on the surface of the switch mounting seat assembly, and when the switch mounting seat assembly is clamped or released, the clamping button drives the moving mechanism to the loosening position or the fastening position, respectively, so that the integral module can be separated from the mounting base or fixed to the mounting base.

[0006] Furthermore, the mounting base includes a mounting rod, and the switch mounting base assembly also includes a seat tube, the seat tube is radially provided with a mounting hole, the moving mechanism is radially movable along the seat tube and accommodated in the mounting hole, and the moving mechanism and the seat tube are respectively provided with a first connecting hole and a second connecting hole along the axial direction of the seat tube, allowing the mounting rod to pass through; when the moving mechanism moves radially along the seat tube to a loose position, the first connecting hole and the second connecting hole are docked to form a cavity allowing the mounting rod to pass through, so that the overall module can be detached from the mounting base; when the moving mechanism moves radially along the seat tube to a fastening position, the first connecting hole and the second connecting hole are radially misaligned, so that the inner wall of the first connecting hole and the inner wall of the second connecting hole clamp the mounting rod, so as to fix the overall module to the mounting base by radially clamping.

[0007] Furthermore, the mounting hole is located in the middle of the axial position of the seat tube, and the second connecting hole axially penetrates the seat tube, so that both ends of the first connecting hole of the moving mechanism in the mounting hole are connected to the hole section of the second connecting hole.

[0008] Furthermore, the switch mounting seat assembly also includes an elastic member, the mounting hole is a blind hole, the end of the movable mechanism protruding out of the mounting hole serves as the clamping button, and the end of the movable mechanism protruding into the mounting hole and the bottom surface of the mounting hole support and connect the elastic member, so that when the clamping button is under pressure, the elastic member is compressed and moved to a loose position, and when the clamping button is not under pressure, it is reset and moved to a fastened position under the support of the elastic member.

[0009] Furthermore, a protrusion protruding radially is provided on the inner wall of the first connecting hole, and an annular groove is provided on the mounting rod at the axial position corresponding to the protrusion, and the protrusion on the moving mechanism in the fastening position is embedded in the annular groove, thereby axially limiting the switch mounting seat assembly and the mounting base.

[0010] Furthermore, the switch mounting seat assembly also includes a sleeve, which is detachably connected to one end of the seat tube and sleeved in the second connecting hole, and the end of the sleeve passes through the second connecting hole and extends into the mounting hole. A countersunk hole for accommodating the end of the sleeve is provided at the end of the first connecting hole facing the sleeve, thereby preventing the moving mechanism from escaping from the mounting hole under the limitation of the sleeve, and the diameter of the countersunk hole is larger than the diameter of the sleeve, so that the moving mechanism can move between the tightened position and the loosened position.

[0011] Furthermore, the mounting base also includes a bottom plate, a first positioning groove and the mounting rod are provided on the surface of the bottom plate, the first positioning groove is arranged along the axial direction of the mounting rod, and a first positioning pin corresponding to the position of the first positioning groove is provided on the outer surface of the switch mounting seat assembly, and the first positioning pin enters the first positioning groove through the notch, thereby guiding the overall module when it is fixed to the mounting base.

[0012] Furthermore, the remotely replaceable travel switch device also includes an electrical connector assembly and a cable, the electrical connector assembly includes a plug, a socket and a socket mounting plate, the socket is mounted on the socket mounting plate, the socket mounting plate and the mounting base are connected to the mounting surface of the remotely replaceable travel switch device, the plug is detachably plugged into the socket and connected to the travel switch via a cable, and is an integral module that is detachably installed together with the travel switch and the switch mounting base assembly.

[0013] Furthermore, the socket is provided with a second positioning groove arranged along the plugging direction of the plug, and the outer surface of the plug is provided with a second positioning pin corresponding to the position of the second positioning groove. The second positioning pin enters the second positioning groove through the notch, thereby guiding the plug-in connection between the socket and the plug.

[0014] The present invention also provides a hot chamber transfer system, comprising a transfer mobile device and the above-mentioned remotely replaceable travel switch device, wherein the remotely replaceable travel switch device is arranged on the mobile end and / or fixed end of the transfer mobile device for sensing the moving travel of the transfer mobile device through the travel switch.

[0015] The device of the present invention includes a travel switch body, a switch mounting seat assembly and a mounting base. Compared with the current conventional method of directly mounting the travel switch itself on the mounting surface, an indirect installation connection is achieved by using a mounting base and a switch mounting seat assembly. The travel switch and the switch mounting seat assembly are used as an integral module that can be disassembled and installed together. Therefore, during the disassembly, assembly and replacement operations, there is no need to use the travel switch itself as a grasping component, which can effectively avoid damage to the travel switch that may be caused during the clamping and grasping process, thereby ensuring the safety of the travel switch.

[0016] The switch mounting base assembly is provided with a moving mechanism with a clamping button, and the clamping button drives the moving mechanism to the loosening position or the tightening position when the switch mounting base assembly is clamped or released. This is equivalent to realizing disassembly and tightening only through the clamping and releasing actions during operation, and there is no need to operate delicate parts such as threaded fasteners, thus eliminating the most tedious steps such as alignment and screwing, which not only greatly reduces the difficulty of operation and the requirements for alignment accuracy, but also effectively avoids additional problems such as the detachment of small parts. Therefore, it is very suitable for remote operation components such as manipulators, and can be used in occasions where it is difficult for personnel to directly operate. The overall mechanical structure is safe and reliable, not limited by space and environmental conditions, and is suitable for radioactive environments such as hot rooms, reducing the risk of personnel operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic diagram of the structure of a travel switch device that can be replaced remotely in Embodiment 1 of the present invention;

[0018] Figure 21 is a schematic diagram of the external structure of a switch mounting seat assembly of a travel switch device that can be replaced remotely in Example 1 of the present invention;

[0019] Figure 3 1 is a schematic diagram of the internal structure of a switch mounting seat assembly of a travel switch device that can be replaced remotely in Example 1 of the present invention;

[0020] Figure 4 is a schematic cross-sectional structural diagram of a switch mounting seat assembly of a travel switch device that can be replaced remotely in Embodiment 1 of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the electrical connector assembly of the remotely replaceable travel switch device in Example 1 of the present invention.

[0022] In the figure: 1. travel switch; 2. switch mounting seat assembly; 21. moving mechanism; 211. clamping button; 212. first connecting hole; 213. protrusion; 22. seat tube; 221. second connecting hole; 222. mounting hole; 23. elastic member; 24. bushing; 25. first positioning pin; 3. mounting base; 31. mounting rod; 311. annular groove; 32. bottom plate; 321. first positioning groove; 4. electrical connector assembly; 41. plug; 411. second positioning pin; 42. socket; 421. second positioning groove; 43. socket mounting plate; 5. cable. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience and simplification of the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0025] In the description of the present invention, the terms “first”, “second” and “third” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connect", "set", "install", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, the remotely replaceable travel switch device of this embodiment is a device that can be operated by a manipulator and can be used in hot rooms or equipment rooms in the field of nuclear material and nuclear fuel processing. The device includes a travel switch 1, a switch mounting seat assembly 2 and a mounting base 3. The mounting base 3 is connected to the mounting surface of the remotely replaceable travel switch device. The travel switch 1 is connected to the switch mounting seat assembly 2 as an integral module that is disassembled and installed together. The switch mounting seat assembly 2 includes a moving mechanism 21. The moving mechanism 21 can move to a fastening position and fasten the mounting base 3, and move to a loosening position and release the mounting base 3. The moving mechanism 21 is provided with a clamping button 211 located on the surface of the switch mounting seat assembly 2. When the switch mounting seat assembly 2 is clamped or released, the clamping button 211 drives the moving mechanism 21 to the loosening position or the fastening position, respectively, so that the integral module can be separated from the mounting base 3 or fixed to the mounting base 3.

[0029] Compared with the current conventional method of directly mounting the travel switch itself on the mounting surface, the device of this embodiment adopts the mounting base 3 and the switch mounting base assembly 2 to realize indirect mounting connection, and the travel switch 1 and the switch mounting base assembly 2 are used as an integral module that is disassembled and installed together. Therefore, during the disassembly, assembly and replacement operation, there is no need to use the travel switch 1 itself as a grasping component, which can effectively avoid possible damage to the travel switch 1 during the clamping and grasping process, thereby ensuring the safety of the travel switch 1.

[0030] The switch mounting seat assembly 2 is provided with a moving mechanism 21 with a clamping button 211, and the clamping button 211 drives the moving mechanism 21 to a loose position or a fastened position when the switch mounting seat assembly 2 is clamped or released. Through the ingenious structural design, the clamping action itself is used as the driving force for driving the moving mechanism 21, which is equivalent to realizing disassembly and fastening only through the clamping and releasing actions during operation, and there is no need to operate fine parts such as threaded fasteners, thereby eliminating the most cumbersome steps such as alignment and screwing, which not only greatly reduces the difficulty of operation and the requirements for alignment accuracy, but also effectively avoids additional problems such as the detachment of small parts, so it is very suitable for remote operation components such as manipulators to operate, and can be used in occasions where it is difficult for personnel to directly operate. The overall mechanical structure is safe and reliable, not limited by space and environmental conditions, and is suitable for radioactive environments such as hot rooms, reducing the risk of personnel operation.

[0031] In this embodiment, Figure 3 As shown, the mounting base 3 includes a mounting rod 31, and the switch mounting base assembly 2 also includes a seat tube 22. The seat tube 22 is provided with a mounting hole 222 in the radial direction. The moving mechanism 21 is accommodated in the mounting hole 222 along the radial direction of the seat tube 22. The moving mechanism 21 and the seat tube 22 are respectively provided with a first connecting hole 212 and a second connecting hole 221 along the axial direction of the seat tube 22 to allow the mounting rod 31 to pass through. When the moving mechanism 21 moves radially along the seat tube 22 to the loose position, the first connecting hole 212 and the second connecting hole 221 are connected to form a cavity to allow the mounting rod 31 to pass through, so that the whole module can be separated from the mounting base 3; the moving mechanism 21 moves radially along the seat tube 22 to the fastening position, and the first connecting hole 212 and the second connecting hole 221 are radially misaligned, so that the inner wall of the first connecting hole 212 and the inner wall of the second connecting hole 221 clamp the mounting rod 31, so that the whole module is fixed to the mounting base 3 by radially embracing. .

[0032] Specifically, the seat tube 22 is a cylindrical structure with an axial opening (second connecting hole 221), and the cylindrical structure also has a radial opening (mounting hole 222). Figure 4As shown, the mounting hole 222 and the second connecting hole 221 are mutually connected. In this embodiment, the seat tube 22 is a square tube, and its "radial direction" is perpendicular to the axis of the seat tube 22; and the moving mechanism 21 also has an open hole (first connecting hole 212) structure. When the moving mechanism 21 is located in the mounting hole 222, the first connecting hole 212 of the moving mechanism 21 and the second connecting hole 221 of the seat tube 22 are connected. Therefore, when the moving mechanism 21 moves radially toward the outside of the mounting hole 222 along the seat tube 22, the first connecting hole 212 and the second connecting hole 221 are radially misaligned, causing the inner wall of the first connecting hole 212 and the inner wall of the second connecting hole 221 to radially embrace the mounting rod 31, that is, to reach the fastening position; and when the moving mechanism 21 moves radially toward the mounting hole 222 along the seat tube 22, the first connecting hole 212 and the second connecting hole 221 are no longer misaligned, so that the cavity formed by the docking allows the mounting rod 31 to freely enter and exit, that is, to reach the loose position.

[0033] In this embodiment, the mounting hole 222 is located in the middle of the axial position of the seat tube 22, and the second connecting hole 221 axially penetrates the seat tube 22, so that both ends of the first connecting hole 212 of the moving mechanism 21 in the mounting hole 222 are connected to the hole section of the second connecting hole 221. This setting structure applies force outward in the middle and inward at both ends when holding the mounting rod 31, so that the clamping force is more uniform and stable, and the switch mounting seat assembly 2 is prevented from deflecting on one side. The bottom opening of the second connecting hole 221 of the seat tube 22 is the entrance and exit of the mounting rod 31, and a connecting plate is provided at the top for fixed connection of the travel switch 1 body.

[0034] In this embodiment, the second connection hole 221 is a hole with a diameter adapted to or slightly larger than the diameter of the mounting rod 31, and the diameter of the first connection hole 212 is larger than the diameter of the mounting rod 31, so that the moving mechanism 21 has radial activity margin.

[0035] In this embodiment, the switch mounting seat assembly 2 also includes an elastic member 23, and the mounting hole 222 is a blind hole. The end of the moving mechanism 21 protrudes out of the mounting hole 222 as a clamping button 211, and the end of the moving mechanism 21 protrudes into the mounting hole 222 and the bottom surface of the mounting hole 222 to support and connect the elastic member 23, so that when the clamping button 211 is under pressure, the elastic member 23 is compressed and moved to a loose position, and when the clamping button 211 is not under pressure, it is reset and moved to a fastened position under the support of the elastic member 23.

[0036] Specifically, Figure 3Taking the structure shown as an example, when the remote operation device clamps the switch mounting seat assembly 2, it will at least hold the side where the clamping button 211 is located and the side opposite to the side where the clamping button 211 is located (or the side where the elastic member 23 is located). At this time, the device provides support force for the side where the elastic member 23 is located, and the clamping button 211 will naturally compress the elastic member 23 inward under the clamping force, so that the first connecting hole 212 and the second connecting hole 221 are axially aligned, so that the device can remove the entire module from the mounting rod 31; when the remote operation device places the switch mounting seat assembly 2 on the mounting rod 31 and releases it, the elastic member 23 naturally stretches, so that the moving mechanism 21 moves relative to the seat tube 22, thereby misaligning the first connecting hole 212 and the second connecting hole 221, so as to clamp the mounting rod 31.

[0037] In this embodiment, the elastic member 23 is a spring arranged along the radial direction of the seat tube 22. The bottom surface of the blind hole of the mounting hole 222 is provided with an accommodation hole (along the radial direction of the seat tube 22), and the end of the moving mechanism 21 protruding into the mounting hole 222 is also provided with an accommodation hole (along the radial direction of the seat tube 22). The two ends of the elastic member 23 are respectively embedded in the two accommodation holes to avoid misalignment.

[0038] In this embodiment, a protrusion 213 protruding in the radial direction is provided on the inner wall of the first connection hole 212, and an annular groove 311 is provided on the mounting rod 31 at the axial position corresponding to the protrusion 213. The protrusion 213 on the mobile mechanism 21 in the fastened position is embedded in the annular groove 311, thereby axially limiting the switch mounting seat assembly 2 and the mounting base 3, so that when the mobile mechanism 21 is in the fastened position, the radial and axial directions of the mounting rod 31 can be limited, and the installation is firm and reliable. The protrusion 213 protrudes at a height not greater than the displacement of the mobile mechanism 21 between the fastened position and the loose position, so that when the mobile mechanism 21 is in the loose position, the protrusion 213 can completely break away from the annular groove 311 to avoid interfering with the escape of the mounting rod 31.

[0039] The top of the mounting rod 31 is in a conical or hemispherical shape with a slightly pointed top, so as to facilitate guidance and automatic centering during installation.

[0040] In this embodiment, the switch mounting seat assembly 2 further includes a sleeve 24, which is detachably connected to one end of the seat tube 22 and sleeved in the second connection hole 221. The inner diameter of one end of the second connection hole 221 connected to the sleeve 24 is enlarged to match the outer diameter of the sleeve 24, and the inner diameter of the sleeve 24 itself is consistent with the inner diameter of the rest of the second connection hole 221. The end of the sleeve 24 is also provided with a radially extending connection portion (similar to a flange), which is connected to the end of the seat tube 22 through the connection portion and a fastener.

[0041] The end of the sleeve 24 passes through the second connection hole 221 and penetrates into the mounting hole 222. The first connection hole 212 is provided with a countersunk hole for accommodating the end of the sleeve 24 at the end facing the sleeve 24, so as to prevent the moving mechanism 21 from escaping from the mounting hole 222 under the limit of the sleeve 24, and the diameter of the countersunk hole is larger than the diameter of the sleeve 24, so that the moving mechanism 21 can move between the fastening position and the loosening position. By setting the sleeve 24 structure, the movement margin of the moving mechanism 21 can be guaranteed, and the moving mechanism 21 can be prevented from falling from the mounting hole 222 after being separated from the mounting rod 31.

[0042] When assembling the switch mounting seat assembly 2, first place the elastic member 23 and the moving mechanism 21 in the mounting hole 222 of the seat tube 22, then insert the shaft sleeve 24 from the bottom end of the second connecting hole 221, so that the inserted end of the shaft sleeve 24 is accommodated in the countersunk hole of the first connecting hole 212 of the moving mechanism 21, and then use bolts and other fasteners to fix the shaft sleeve 24 and the seat tube 22. When the travel switch 1 is used or replaced later, it is no longer necessary to operate the shaft sleeve 24.

[0043] In this embodiment, the mounting base 3 also includes a bottom plate 32, and a first positioning groove 321 and a mounting rod 31 are provided on the surface of the bottom plate 32. The first positioning groove 321 is arranged along the axial direction of the mounting rod 31. A first positioning pin 25 corresponding to the position of the first positioning groove 321 is provided on the outer surface of the switch mounting seat assembly 2. The first positioning pin 25 enters the first positioning groove 321 through the notch, thereby guiding the entire module when it is fixed to the mounting base 3, and can also achieve circumferential positioning. The first positioning groove 321 and the mounting rod 31 are both arranged in the vertical direction, and an opening is arranged at the top of the first positioning groove 321. The opening is a bevel with a diameter gradually decreasing from top to bottom, so as to facilitate the alignment and entry of the first positioning pin 25.

[0044] In this embodiment, Figure 1 and Figure 5 As shown, the remotely replaceable travel switch device further includes an electrical connector assembly 4 and a cable 5. The electrical connector assembly 4 is used to transmit power and signals to the travel switch 1 after being plugged in. The electrical connector assembly 4 includes a plug 41, a socket 42 and a socket mounting plate 43. The socket 42 is mounted on the socket mounting plate 43. The socket mounting plate 43 is connected to the mounting surface of the remotely replaceable travel switch device together with the mounting base 3. The plug 41 is detachably plugged and connected to the socket 42, and is connected to the travel switch 1 through the cable 5, and is an integral module that is detachably installed together with the travel switch 1 and the switch mounting base assembly 2.

[0045] In this embodiment, the socket 42 is provided with a second positioning groove 421 arranged along the plugging direction of the plug 41, and the outer surface of the plug 41 is provided with a second positioning pin 411 corresponding to the position of the second positioning groove 421. The second positioning pin 411 enters the second positioning groove 421 through the notch, thereby guiding the plugging connection between the socket 42 and the plug 41. The second positioning groove 421 is arranged in the vertical direction, and an opening is arranged at the top of the second positioning groove 421. The opening is a bevel with a diameter gradually decreasing from top to bottom, so as to facilitate the alignment and entry of the second positioning pin 411.

[0046] In general, this embodiment is applicable to the field of nuclear material and nuclear fuel processing, and provides a safe, reliable, durable and easily replaceable travel switch device. When the travel switch 1 needs to be repaired or replaced, the operator does not need to enter the hot room, and the travel switch can be replaced by using a manipulator outside the hot room.

[0047] Specifically, the remotely replaceable travel switch device mainly includes a plug 41, a socket 42, a socket mounting plate 43, a cable 5, a travel switch 1, a switch mounting seat assembly 2, a clamping button 211, an elastic member 23, a sleeve 24, a mounting base 3 and other components. The travel switch 1 is mounted on the switch mounting seat assembly 2 by screws, the clamping button 211 is located in a circular hole on the side of the switch mounting seat assembly 2, the switch mounting seat assembly 2 is mounted on the mounting base 3, and the mounting base 3 is provided with a guide shaft (mounting rod 31), and the guide shaft is matched with the mounting hole (first connecting hole 212 and second connecting hole 221) of the switch mounting seat assembly 2. Since the circular shaft and the circular hole can still rotate after being matched, a first positioning groove 25 is set on the mounting base, and a first positioning pin 25 is set on the switch mounting seat assembly 2, and the circumferential positioning of the travel switch 1 is achieved through the cooperation of the two.

[0048] The switch mounting seat assembly 2 mainly includes a moving mechanism 21, a seat tube 22, a spring, and a shaft sleeve 24. Holes are processed on the bottom and side of the switch mounting seat 2, and the clamping button 211 is installed in the hole on the side. A circular hole is processed at the central part of the moving mechanism 21 corresponding to the clamping button 211. The circular hole is used to install the spring. The function of the spring is to ensure that the clamping button 211 is pushed to the right after the manipulator releases the clamping button 211, and the protrusion 213 on the moving mechanism 21 is matched with the annular groove 311 on the mounting rod 31 to prevent the switch mounting seat assembly 2 from moving upward. When the manipulator clamps the clamping button 211, the protrusion 213 on the clamping button 211 is disengaged from the notch on the mounting rod 31, and the switch mounting seat assembly 2 can move upward under the clamping of the manipulator, thereby pulling out the travel switch 1. The shaft sleeve 24 is installed on the switch mounting seat assembly 2 by screws. The function of the shaft sleeve 24 is to prevent the moving mechanism 21 and the spring from escaping from the switch mounting seat assembly 2 after the switch mounting seat assembly 2 is pulled out.

[0049] A first positioning pin 25 is installed on the other side of the switch mounting seat assembly 2. After the switch mounting seat assembly 2 and the mounting base 3 are installed in place, the first positioning pin 25 can prevent the switch mounting seat assembly 2 from shaking, thereby improving the positioning accuracy of the travel switch device; when the manipulator clamps the switch mounting seat assembly 2 and installs it on the mounting base 3, the first positioning pin 25 cooperates with the first positioning groove 321 on the mounting base 3 to guide the installation.

[0050] The plug 41 end of the electrical connector assembly 4 is connected to the terminal of the travel switch 1 through the cable 5, and the plug 41 is connected to the cable by welding. The socket 42 of the electrical connector assembly 4 is mounted on the socket mounting plate 43 by screws, and the plug 41 is a plug 41 that can be plugged in and out by clamping the manipulator. The guidance and positioning of the plug 41 and the socket 42 are completed by the second positioning groove 421 on the socket 42 and the second positioning pin 411 on the plug 41. The manipulator clamps the plug 41 and moves it upward to separate the plug 41 from the socket 42. When installing the plug 41, align the second positioning pin 411 on the plug 41 with the second positioning groove 421 on the socket 42 by observation. After the second positioning pin 411 is installed in place, the installation of the electrical connector assembly 4 can be completed.

[0051] The socket mounting plate 43 and the mounting base 3 are installed at appropriate positions according to the installation space and requirements. It should be noted that the socket mounting plate 43 and the mounting base 3 need to be installed on the fixed side or the movable side (that is, the same side of the stroke device to be measured) at the same time. The length of the cable 5 is selected according to actual conditions and can be adjusted according to the positions of the socket mounting plate 43 and the mounting base 3.

[0052] When the travel switch 1 needs to be replaced, the manipulator first clamps the plug 41 of the electrical connector assembly 4 to disengage the plug 41 from the socket 42. After pulling out the plug 41, the manipulator clamps the clamping button 211 on the switch mounting seat assembly 2. After the moving mechanism 21 moves to the loose position, the travel switch 1 (and the switch mounting seat assembly 2) can be pulled out upwards. The travel switch 1 is transported out of the heat chamber or equipment room together with the plug 41 via the cable 5. The installation process is the opposite of the aforementioned disassembly process.

[0053] The characteristics of this embodiment are:

[0054] (1) The travel switch 1 can be replaced remotely by a manipulator;

[0055] (2) Compact structure, small space occupation;

[0056] (3) The travel switch 1 has a self-locking function;

[0057] (4) After the travel switch 1 is replaced, it is firm, reliable and has high precision.

[0058] Example 2

[0059] A hot room transfer system of this embodiment includes a transfer mobile device and a remotely replaceable travel switch device in Embodiment 1. The mobile end and / or fixed end of the transfer mobile device is provided with a remotely replaceable travel switch device for sensing the movement travel of the transfer mobile device through the travel switch 1. The transfer mobile device may be a sealed door of a transfer channel, which is a common device in a hot room. The remotely replaceable travel switch device may be provided on a door panel or a door frame, and is used to sense the movement travel of the door panel, so that the transfer system can judge the opening and closing state of the door. When the travel switch needs to be repaired, it can be replaced by a manipulator.

[0060] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A travel switch device that can be replaced remotely, characterized in that: The invention comprises a travel switch (1), a switch mounting seat assembly (2) and a mounting base (3), wherein the mounting base (3) is connected to a mounting surface of a travel switch device that can be replaced remotely. The travel switch (1) is connected to the switch mounting seat assembly (2) as an integral module that can be disassembled and installed together. The switch mounting base assembly (2) comprises a moving mechanism (21), wherein the moving mechanism (21) is capable of moving to a fastening position and fastening the mounting base (3), and moving to a loosening position and releasing the mounting base (3). The moving mechanism (21) is provided with a clamping button (211) located on the surface of the switch mounting base component (2). When the switch mounting base component (2) is clamped or released, the clamping button (211) drives the moving mechanism (21) to a loosening position or a fastening position, respectively, so that the entire module can be separated from the mounting base (3) or fixed to the mounting base (3).

2. The remotely replaceable travel switch device according to claim 1, characterized in that: The mounting base (3) comprises a mounting rod (31), The switch mounting seat assembly (2) further comprises a seat tube (22), wherein the seat tube (22) is provided with a mounting hole (222) in a radial direction. The moving mechanism (21) is accommodated in the mounting hole (222) in a radially movable manner along the seat tube (22). A first connecting hole (212) and a second connecting hole (221) are respectively provided on the moving mechanism (21) and the seat tube (22) along the axial direction of the seat tube (22) to allow the mounting rod (31) to pass through. When the moving mechanism (21) moves radially along the seat tube (22) to a loose position, the first connecting hole (212) and the second connecting hole (221) are connected to form a cavity that allows the installation rod (31) to pass through, so that the entire module can be separated from the installation base (3); When the moving mechanism (21) moves radially along the seat tube (22) to the fastening position, the first connecting hole (212) and the second connecting hole (221) are radially misaligned, so that the inner wall of the first connecting hole (212) and the inner wall of the second connecting hole (221) clamp the mounting rod (31), so that the entire module is fixed to the mounting base (3) in a radially clamping manner.

3. The remotely replaceable travel switch device according to claim 2, characterized in that: The mounting hole (222) is located in the middle of the axial position of the seat tube (22). The second connecting hole (221) axially penetrates the seat tube (22), so that both ends of the first connecting hole (212) of the moving mechanism (21) in the mounting hole (222) are connected to the hole section of the second connecting hole (221).

4. The remotely replaceable travel switch device according to claim 2, characterized in that: The switch mounting seat assembly (2) further comprises an elastic member (23), The mounting hole (222) is a blind hole. The end of the moving mechanism (21) protruding out of the mounting hole (222) serves as the clamping button (211), and the end of the moving mechanism (21) protruding into the mounting hole (222) and the bottom surface of the mounting hole (222) are used to support and connect the elastic member (23). When the clamping button (211) is under pressure, the elastic member (23) is compressed and moved to a loose position; and when the clamping button (211) is not under pressure, it is reset and moved to a fastened position under the support of the elastic member (23).

5. The remotely replaceable travel switch device according to claim 2, characterized in that: A protrusion (213) protruding in the radial direction is provided on the inner wall of the first connection hole (212). The mounting rod (31) is provided with an annular groove (311) at an axial position corresponding to the protruding portion (213). The protrusion (213) on the moving mechanism (21) in the fastening position is embedded in the annular groove (311), thereby axially limiting the switch mounting seat assembly (2) and the mounting base (3).

6. The remotely replaceable travel switch device according to claim 2, characterized in that: The switch mounting assembly (2) further comprises a shaft sleeve (24), The shaft sleeve (24) is detachably connected to one end of the seat tube (22) and sleeved in the second connecting hole (221), and the end of the shaft sleeve (24) passes through the second connecting hole (221) and extends into the mounting hole (222). The first connecting hole (212) is provided with a countersunk hole for accommodating the end of the shaft sleeve (24) at the end thereof facing the shaft sleeve (24), so as to prevent the moving mechanism (21) from falling out of the mounting hole (222) under the limitation of the shaft sleeve (24). Furthermore, the diameter of the counterbore is larger than the diameter of the shaft sleeve (24), so that the moving mechanism (21) can move between a fastening position and a loosening position.

7. The remotely replaceable travel switch device according to claim 2, characterized in that: The mounting base (3) further comprises a bottom plate (32), a surface of the bottom plate (32) being provided with a first positioning groove (321) and the mounting rod (31), the first positioning groove (321) being arranged along the axial direction of the mounting rod (31), A first positioning pin (25) corresponding to the position of the first positioning groove (321) is provided on the outer surface of the switch mounting base assembly (2); the first positioning pin (25) enters the first positioning groove (321) through the notch, thereby providing a guide when the entire module is fixed to the mounting base (3).

8. The remotely replaceable travel switch device according to claim 1, characterized in that: It also includes an electrical connector assembly (4) and a cable (5), wherein the electrical connector assembly (4) includes a plug (41), a socket (42) and a socket mounting plate (43). The socket (42) is mounted on a socket mounting plate (43). The socket mounting plate (43) is connected together with the mounting base (3) to the mounting surface of the travel switch device which can be replaced remotely. The plug (41) is detachably plugged into the socket (42) and is connected to the travel switch (1) via a cable (5), forming an integral module that can be detachably installed together with the travel switch (1) and the switch mounting seat assembly (2).

9. The remotely replaceable travel switch device according to claim 8, characterized in that: The socket (42) is provided with a second positioning groove (421) arranged along the plugging direction of the plug (41). A second positioning pin (411) corresponding to the position of the second positioning groove (421) is provided on the outer surface of the plug (41), and the second positioning pin (411) enters the second positioning groove (421) through the notch, thereby guiding the plug-in connection between the socket (42) and the plug (41).

10. A hot chamber transfer system, characterized in that: It comprises a transporting mobile device and a remotely replaceable travel switch device as claimed in any one of claims 1 to 9, The mobile end and / or fixed end of the transporting and moving equipment is provided with the remotely replaceable travel switch device, which is used to sense the moving travel of the transporting and moving equipment through the travel switch (1).

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