A device for guiding and positioning the dismounting of a hydraulic cylinder of an emergency door

Abstract

The utility model discloses an accident door hydraulic cylinder dismounting guide positioning device, including fixed base and clamping mechanism, the fixed base is provided with two, two fixed base all install clamping mechanism, and the clamping mechanism of both sides is opposite setting, the both ends of both sides fixed base are provided with containing groove respectively, and the fixed base is fixedly connected with the connecting plate of containing groove both ends respectively, and the connecting plate on both sides fixed base is detachable through bolt connection, the clamping mechanism includes hydraulic oil cylinder and clamping plate, and hydraulic oil cylinder fixed mounting is in fixed base, and clamping plate is located in containing groove, and the piston rod of hydraulic oil cylinder is connected with clamping plate installation, and the clamping space of both sides clamping plate has. The utility model can be in accident door hydraulic cylinder dismounting or installation, and the guide positioning of accident door hydraulic cylinder is carried out.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tooling technology for hydropower plants, and in particular to a hydraulic cylinder disassembly guide and positioning device for emergency doors. Background Technology

[0002] In the emergency exit system of hydraulic engineering projects, the hydraulic cylinder is a core driving component, and its operating status directly affects the emergency response efficiency and reliability of the emergency exit. Due to prolonged exposure to humid and dusty underwater or corridor environments, hydraulic cylinders are prone to aging seals and piston rod wear, requiring regular disassembly and maintenance. However, emergency exit hydraulic cylinders are large, reaching several meters in length and weighing several tons, with a precision cylindrical structure, necessitating high requirements for positioning stability and clamping safety during disassembly or installation. To facilitate guiding and positioning the emergency exit hydraulic cylinder during disassembly or installation, this application presents a disassembly guiding and positioning device for the emergency exit hydraulic cylinder. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the problems existing in the background art and provide a guide and positioning device for disassembling the hydraulic cylinder of an emergency door, which guides and positions the hydraulic cylinder of the emergency door during disassembly or installation.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: An emergency door hydraulic cylinder disassembly guide and positioning device includes a fixed base and a clamping mechanism. Two fixed bases are symmetrically arranged, and a clamping mechanism is installed on each of the two fixed bases, with the clamping mechanisms on both sides facing each other. Each of the two fixed bases has a receiving groove at one end facing the other, and a connecting plate is fixedly connected to each end of the fixed base at the receiving groove. The connecting plates on the two fixed bases are detachably connected by bolts. The clamping mechanism includes a hydraulic cylinder and a clamping plate. The hydraulic cylinder is fixedly installed on the fixed base, and the clamping plate is located within the receiving groove. The piston rod of the hydraulic cylinder is installed and connected to the clamping plate. A clamping space exists between the two clamping plates.

[0005] The clamping plate is an arc-shaped plate structure or a three-sided groove structure.

[0006] Flexible clamping pads are fixed on the opposite sides of the clamping plates on both sides.

[0007] The clamping plate has a mounting groove in the middle, and a pressure sensor is installed in the mounting groove.

[0008] One of the mounting brackets is equipped with a controller and an alarm light. The pressure sensor is electrically connected to the controller, and the alarm light is electrically connected to the controller.

[0009] A connecting seat is fixedly connected to the middle of the side of the clamping plate away from the clamping space. The connecting seat has an internal threaded hole at the end away from the clamping space. The piston rod end of the hydraulic cylinder is screwed and fixed to the internal threaded hole of the connecting seat. A blind hole for installation is provided at the bottom of the internal threaded hole. A blind hole for positioning is provided on the side of the connecting seat that is fixed to the clamping plate. The bottom of the pressure sensor passes through the mounting groove and is installed in the blind hole for positioning. The pressure sensor is connected and fixed in the blind hole for installation by screws.

[0010] The clamping plate is also equipped with a guide rod on the side away from the clamping space, and the guide rod is slidably connected to the fixed seat.

[0011] The clamping plate has a plug-in seat fixed on the side away from the clamping space, and the guide rod is plugged into and fixed to the plug-in seat.

[0012] The fixed base includes main rods on both sides and a first connecting plate, a second connecting plate and a third connecting plate that are sequentially fixed between the main rods on both sides. The first connecting plate has a receiving groove. One end of the cylinder body of the hydraulic cylinder is fixedly installed on the second connecting plate. The piston rod of the hydraulic cylinder passes through a hole in the first connecting plate and is connected to the clamping plate. The other end of the cylinder body of the hydraulic cylinder passes through a hole in the third connecting plate.

[0013] Mounting seats are fixed to both sides of the fixed base, and mounting holes are provided at the bottom of the mounting seats.

[0014] The features of this utility model using the above-mentioned technical solution are: 1. The two fixed seats of this utility model are detachably connected by bolts, making it easy to mount onto the cylinder body of the emergency door hydraulic cylinder. The clamping mechanism is installed on the fixed seats. By controlling the extension and retraction of the hydraulic cylinder, the movement of the clamping plate is controlled, and the clamping plate surrounds the emergency door hydraulic cylinder from both sides. When the emergency door hydraulic cylinder is disassembled and lifted or installed and lowered, if there is a gap between the clamping plate and the cylinder body of the emergency door hydraulic cylinder, the clamping plate guides the emergency door hydraulic cylinder to prevent it from swinging and colliding. When it is necessary to remove or install the pin connecting the piston rod of the emergency door hydraulic cylinder to the emergency door, the position of the piston rod of the emergency door hydraulic cylinder is adjusted by controlling the extension length of the hydraulic cylinders on both sides, so that the connection between the piston rod of the emergency door hydraulic cylinder and the emergency door is aligned. Then, the clamping plate clamps the cylinder body of the emergency door hydraulic cylinder to prevent the emergency door hydraulic cylinder from shaking when removing or installing the pin.

[0015] 2. This utility model uses a guide rod to limit the clamping plate, preventing the clamping plate from rotating during use.

[0016] 3. This utility model uses a pressure sensor to detect the pressure of the hydraulic cylinder holding the emergency door, preventing excessive pressure from damaging the emergency door hydraulic cylinder. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the fixing base of this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the clamping plate of this utility model.

[0021] Figure 4 for Figure 3 Right view structural schematic diagram of the middle clamping plate.

[0022] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 6 This is a schematic diagram of another embodiment of the clamping plate of this utility model.

[0024] Figure label: Fixed base 10, connecting plate 11, bolt 12, receiving groove 13, main rod 14, first connecting plate 15, second connecting plate 16, third connecting plate 17; Clamping mechanism 20, hydraulic cylinder 21, clamping plate 22, mounting groove 2201, connecting seat 221, internal threaded hole 2211, mounting blind hole 2212, positioning blind hole 2214, screw 2213, plug-in seat 222, flexible clamping pad 223. Clamping space 23, guide rod 24; Pressure sensor 30, controller 31, alarm light 32; Mounting base 40, mounting hole 41. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0027] Example 1: See Figure 1-6 An emergency door hydraulic cylinder disassembly guide and positioning device includes a fixed base 10 and a clamping mechanism 20. Two fixed bases 10 are symmetrically arranged, and a clamping mechanism 20 is installed on each of the two fixed bases 10. The clamping mechanisms 20 on both sides are arranged opposite each other. A receiving groove 13 is provided at one end of each of the two fixed bases 10. A connecting plate 11 is fixedly connected to each end of the fixed base 10 located in the receiving groove 13. The connecting plates 11 on the two fixed bases 10 are detachably connected by bolts 12. The clamping mechanism 20 includes a hydraulic cylinder 21 and a clamping plate 22. The hydraulic cylinder 21 is fixedly installed on the fixed base 10, and the clamping plate 22 is located in the receiving groove 13. The piston rod of the hydraulic cylinder 21 is installed and connected to the clamping plate 22. There is a clamping space 23 between the two clamping plates 22 for clamping the emergency door hydraulic cylinder.

[0028] Two fixed seats 10 are detachably connected by bolts 12, facilitating their mounting onto the cylinder body of the emergency door hydraulic cylinder. A clamping mechanism 20 is mounted on the fixed seats 10. By controlling the extension and retraction of the hydraulic cylinder 21, the clamping plate 22 is moved, enclosing the emergency door hydraulic cylinder from both sides. When the emergency door hydraulic cylinder is disassembled or lowered, if there is a gap between the clamping plate 22 and the cylinder body, the clamping plate guides the cylinder, preventing it from swinging and colliding. When it is necessary to remove or install the pin connecting the piston rod of the emergency door hydraulic cylinder to the emergency door, the position of the piston rod is adjusted by controlling the extension length of the hydraulic cylinders 21 on both sides, aligning the piston rod with the connection point of the emergency door hydraulic cylinder. Then, the clamping plate 22 clamps the cylinder body of the emergency door hydraulic cylinder, preventing it from shaking during the removal or installation of the pin.

[0029] In one of the solutions of this embodiment, such as Figure 3 As shown, the clamping plate 22 is an arc-shaped plate structure.

[0030] In another option, such as Figure 6 As shown, the clamping plate 22 has a three-sided groove structure.

[0031] It should be noted that the clamping plate 22 is made of metal plate, which gives the clamping plate 22 a certain amount of elasticity. Further, see Figure 3 Flexible clamping pads 223 are fixedly provided on opposite sides of the clamping plates 22 to prevent the clamping plates 22 from directly contacting the hydraulic cylinder of the emergency door and causing scratches on the outer wall of the hydraulic cylinder. In this embodiment, the flexible clamping pads 223 can be rubber sheets that are glued or installed on the clamping plates 22 by countersunk bolts.

[0032] In this embodiment, see Figure 2 The fixed base 10 includes two main rods 14 on both sides and a first connecting plate 15, a second connecting plate 16 and a third connecting plate 17 welded sequentially between the two main rods 14. The first connecting plate 15 has a receiving groove 13. One end of the cylinder body of the hydraulic cylinder 21 is fixedly installed on the second connecting plate 16. The piston rod of the hydraulic cylinder 21 passes through the hole on the first connecting plate 15 and is connected to the clamping plate 22. The other end of the cylinder body of the hydraulic cylinder 21 passes through the hole on the third connecting plate 17.

[0033] Mounting seats 40 are fixedly connected to both sides of the fixed seat 10, and mounting holes 41 are provided at the bottom of the mounting seats 40. Specifically, the connecting plate 11 is welded to the end of the main rod 14 located on the side of the receiving groove 13. The first connecting plate 15 is an arc-shaped plate, so that the outer side of the first connecting plate 15 forms the receiving groove 13. The hydraulic cylinder 21 adopts an end flange structure installation form. The end flange of the hydraulic cylinder 21 is fixed to the second connecting plate 16 by bolts. The inner diameter of the hole on the first connecting plate 15 is larger than the diameter of the piston rod of the hydraulic cylinder 21.

[0034] Example 2: Based on Example 1, see Figure 1 , 2 A guide rod 24 is also installed on the side of the clamping plate 22 away from the clamping space 23. The guide rod 24 is slidably connected to the fixed base 10. The guide rod 24 limits the clamping plate 22 to prevent it from rotating during use.

[0035] In this embodiment, combined with Figure 2 The guide rod 24 passes through the hole on the first connecting plate 15 and then through the hole on the second connecting plate 16, with the guide rod 24 and the hole on the second connecting plate 16 slidingly engaged. The inner diameter of the hole on the first connecting plate 15 is larger than the diameter of the guide rod 24.

[0036] Specifically, see Figure 3 The clamping plate 22 has a plug-in seat 222 fixed on the side away from the clamping space 23, and the guide rod 24 is fixed to the plug-in seat 222 by interference fit.

[0037] Example 3: Based on Example 1 or Example 2, see Figure 3A mounting groove 2201 is provided in the middle of the clamping plate 22, and a pressure sensor 30 is installed in the mounting groove 2201. By installing the pressure sensor 30, the pressure of the hydraulic cylinder 21 clamping the emergency door hydraulic cylinder is detected, preventing excessive pressure from damaging the emergency door hydraulic cylinder.

[0038] See Figure 1 One of the mounting brackets 10 is equipped with a controller 31 and an alarm light 32. The pressure sensor 30 is electrically connected to the controller 31, and the alarm light 32 is electrically connected to the controller 31. The controller 31 acquires the pressure data from the pressure sensor 30. When the pressure exceeds the threshold, it controls the alarm light 32 to activate and emit an audible and visual alarm.

[0039] Specifically, see Figure 5 A connecting seat 221 is fixedly connected to the middle of the clamping plate 22 on the side away from the clamping space 23. An internal threaded hole 2211 is provided inside the connecting seat 221 at the end away from the clamping space 23. The piston rod end of the hydraulic cylinder 21 is screwed and fixed to the internal threaded hole 2211 of the connecting seat 221. A blind mounting hole 2212 is provided at the bottom of the internal threaded hole 2211. A positioning blind hole 2214 is provided on the side of the connecting seat 221 fixed to the clamping plate 22. The bottom of the pressure sensor 30 passes through the mounting groove 2201 and is installed in the positioning blind hole 2214. The pressure sensor 30 is connected and fixed to the mounting blind hole 2212 by a screw 2213. The above structure enables the installation of the pressure sensor 30.

[0040] In this embodiment, the pressure sensor 30 is a JUL-H41 pressure sensor from Torque Sensor Technology (Shenzhen) Co., Ltd. The controller 31 uses a JUL-M810 force / torque display controller, and the alarm light 32 is an audible and visual alarm light. During use, the controller 31 is connected to a power supply.

[0041] The working principle or working process of this utility model: See Figure 1 , 2 During the disassembly or installation of the emergency door hydraulic cylinder, two fixing seats 10 are detachably mounted onto the cylinder body of the emergency door hydraulic cylinder using bolts 12. The two fixing seats 10 are fixedly installed onto the steel structure support located on the upper side of the emergency door via mounting seats 40. The lifting point of the emergency door hydraulic cylinder is at the top of the emergency door hydraulic cylinder.

[0042] When the emergency door hydraulic cylinder is disassembled, lifted, or installed and lowered, the hydraulic cylinder 21 is controlled to move, thereby controlling the movement of the clamping plate 22, so that there is a gap between the clamping plate 22 and the cylinder body of the emergency door hydraulic cylinder. At this time, the emergency door hydraulic cylinder can be guided by the clamping plates 22 on both sides to prevent the lower end of the emergency door hydraulic cylinder from swinging and colliding during the lifting process.

[0043] When it is necessary to remove or install the pin connecting the piston rod of the emergency door hydraulic cylinder to the emergency door, the position of the piston rod of the emergency door hydraulic cylinder is adjusted by controlling the extension length of the hydraulic cylinders 21 on both sides, so that the connection between the piston rod of the emergency door hydraulic cylinder and the emergency door is aligned. Then, the clamping plate 22 clamps the cylinder body of the emergency door hydraulic cylinder to prevent the emergency door hydraulic cylinder from shaking when removing or installing the pin.

[0044] During clamping, the pressure sensor 30 detects the pressure of the hydraulic cylinder 21 clamping the emergency door hydraulic cylinder to prevent excessive pressure from damaging the emergency door hydraulic cylinder.

[0045] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic cylinder disassembly guide and positioning device for an emergency door, characterized in that: The device includes a fixed base (10) and a clamping mechanism (20). Two fixed bases (10) are symmetrically arranged, and a clamping mechanism (20) is installed on each of the two fixed bases (10). The clamping mechanisms (20) on both sides are arranged opposite to each other. A receiving groove (13) is provided at the opposite end of each fixed base (10). A connecting plate (11) is fixedly connected to each end of the fixed base (10) located in the receiving groove (13). The connecting plates (11) on the two fixed bases (10) are detachably connected by bolts (12). The clamping mechanism (20) includes a hydraulic cylinder (21) and a clamping plate (22). The hydraulic cylinder (21) is fixedly installed on the fixed base (10), and the clamping plate (22) is located in the receiving groove (13). The piston rod of the hydraulic cylinder (21) is installed and connected to the clamping plate (22). There is a clamping space (23) between the two clamping plates (22).

2. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1, characterized in that: The clamping plate (22) is an arc-shaped plate structure or a three-sided groove structure.

3. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1, characterized in that: Flexible clamping pads (223) are fixed on opposite sides of the clamping plates (22) on both sides.

4. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1 or 3, characterized in that: The clamping plate (22) has a mounting groove (2201) in the middle, and a pressure sensor (30) is installed in the mounting groove (2201).

5. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 4, characterized in that: A controller (31) and an alarm light (32) are installed on one of the mounting bases (10). The pressure sensor (30) is electrically connected to the controller (31), and the alarm light (32) is electrically connected to the controller (31).

6. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 4, characterized in that: A connecting seat (221) is fixedly connected to the middle of the side of the clamping plate (22) away from the clamping space (23). The connecting seat (221) has an internal threaded hole (2211) at the end away from the clamping space (23). The piston rod end of the hydraulic cylinder (21) is screwed and fixed to the internal threaded hole (2211) of the connecting seat (221). A blind mounting hole (2212) is provided at the bottom of the internal threaded hole (2211). A blind positioning hole (2214) is provided on the side of the connecting seat (221) that is fixed to the clamping plate (22). The bottom of the pressure sensor (30) passes through the mounting groove (2201) and is installed in the blind positioning hole (2214). The blind mounting hole (2212) is connected and fixed to the pressure sensor (30) by a screw (2213).

7. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1, characterized in that: The clamping plate (22) is also equipped with a guide rod (24) on the side away from the clamping space (23), and the guide rod (24) is slidably connected to the fixed seat (10).

8. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 7, characterized in that: The clamping plate (22) has a plug-in seat (222) fixed on the side away from the clamping space (23), and the guide rod (24) is plugged into and fixed to the plug-in seat (222).

9. The emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1, characterized in that: The fixed base (10) includes two main rods (14) on both sides and a first connecting plate (15), a second connecting plate (16) and a third connecting plate (17) fixedly connected between the two main rods (14) in sequence. The first connecting plate (15) has a receiving groove (13). One end of the cylinder body of the hydraulic cylinder (21) is fixedly installed on the second connecting plate (16). The piston rod of the hydraulic cylinder (21) passes through the hole on the first connecting plate (15) and is connected to the clamping plate (22). The other end of the cylinder body of the hydraulic cylinder (21) passes through the hole on the third connecting plate (17).

10. An emergency door hydraulic cylinder disassembly guide and positioning device according to claim 1 or 9, characterized in that: Mounting seats (40) are fixedly connected to both sides of the fixed seat (10), and mounting holes (41) are provided at the bottom of the mounting seats (40).

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