Equipment for disassembling and assembling quick elastic strip

Abstract

The utility model relates to the technical field of assembly and disassembly of track accessories, in particular to equipment for assembling and disassembling a quick elastic strip, which comprises a machine body, a guide cylinder is mounted on the machine body, an oil cylinder is coaxially and movably mounted in the guide cylinder, a rear hook claw seat is movably mounted outside the guide cylinder, and the rear hook claw seat is connected with the side wall of the oil cylinder to realize power transmission; the rear hook claw seats are respectively used for fixing, dismounting and mounting the rear hook claws; the guide cylinder is used for fixedly dismounting and mounting the front hook claw; the fixing mode of equipment is changed by replacing different hook claws, the function of disassembling and assembling the quick elastic strip is achieved, during disassembling operation, the distance between the hook claws before disassembling and the hook claws after disassembling becomes smaller under the action of an oil cylinder, and the hook claws before disassembling push out the quick elastic strip from a working position; during mounting operation, the distance between the front mounting hook claw and the rear mounting hook claw is reduced under the action of the oil cylinder, and the rear mounting hook claw pushes the quick elastic strip to a working position.

Description

Technical Field

[0001] The utility model relates to the field of rail transit, and particularly to a device for quickly disassembling and assembling snap fasteners. Background Art

[0002] In the daily maintenance and upgrade of railway track systems, the disassembly and assembly operations of snap fasteners are an essential part. However, the current operation methods in this field mainly rely on manual operations, combined with manual or electric devices. Although these methods can meet the basic disassembly and assembly requirements to a certain extent, many deficiencies are exposed in practical applications. Firstly, manual devices usually work based on the lever principle. Although they have a simple structure, when disassembling and assembling snap fasteners, due to the need to apply a large clamping force, unstable phenomena such as unhooking and slipping are likely to occur during the operation. This not only increases the operation difficulty but also poses a significant safety hazard. In addition, before the manual device is supplied, the snap fastener needs to be installed in the pre-assembly position. After arriving at the construction site, workers still need to use another set of installation equipment to install the snap fastener in the working position. This multi-step operation process is not only cumbersome but also inefficient. Secondly, for electric devices such as gear and rack devices, although power is input to the speed reducer through an electric wrench and transmitted through complex transmission mechanisms such as gear racks, worm gears, and worm wheels, in actual use, this complex structure not only increases the maintenance difficulty of the device but also reduces the working efficiency. In addition, the speed reducer itself has a large mass and is not convenient to carry and move, which to a certain extent limits its flexible application at the construction site.

[0003] In summary, the existing methods for disassembling and assembling snap fasteners have many deficiencies, such as complex operation, low efficiency, high safety hazards, and difficult maintenance. Therefore, developing a new type of, efficient, and safe device and method for disassembling and assembling snap fasteners is of great significance for improving the maintenance efficiency of railway track systems, reducing labor intensity, and ensuring operation safety. Summary of the Utility Model

[0004] To solve the above problems, the embodiment of the utility model provides a device for disassembling and assembling snap fasteners, which can change the fixing method of the device by replacing different hook claws to achieve the function of disassembling and assembling snap fasteners.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a device for disassembling and assembling fast spring clips, comprising a machine body, a guide cylinder is installed on the machine body, a cylinder is coaxially movably installed in the guide cylinder, the cylinder is provided with a power interface, and the power interface is connected to an electric hydraulic pump or a manual oil pump; a rear hook claw seat is movably installed on the outside of the guide cylinder, the rear hook claw seat is connected to the side wall of the cylinder to realize power transmission, one end of the push rod of the cylinder is connected to the guide cylinder, and an elastic support member for resetting the linear telescopic drive member is also installed in the guide cylinder corresponding to the other end of the cylinder, one end of the elastic support member is supported on the cylinder, and the other end of the elastic support member is supported on the inner wall of the guide cylinder; a first slot portion and a second slot portion are installed on the rear hook claw seat, and the first slot portion , and the second slot portion are respectively used for fixing and installing and removing the rear hook; a front hook seat is provided at the rear portion of the guide cylinder, and a third slot portion is provided on the front hook seat, and the third slot portion is used for fixing, removing and installing the front hook; during the disassembly operation, the distance between the disassembled front hook and the disassembled rear hook becomes smaller under the action of the oil cylinder, and the disassembled front hook pushes the fast spring bar out of the working position; during the installation operation, the distance between the installed front hook and the installed rear hook becomes smaller under the action of the oil cylinder, and the installed rear hook pushes the fast spring bar to the working position; a rear plug is installed at one end of the guide cylinder away from the front hook seat, and is connected to the push rod inside the oil cylinder by bolts, and the rear hook seat is connected to the side wall of the oil cylinder by a guide pin to realize power transmission; a handle seat for easy holding is installed at one end of the body away from the front hook seat.

[0006] In order to further optimize the utility model, the following technical solutions can be preferably used:

[0007] Preferably, the disassembly front hook comprises an embracing disassembly front hook body, a disassembly front hook block cooperating with the third clamping groove is symmetrically mounted on the inner side of the top of the disassembly front hook body, and a pushing part 1 for pushing the fast spring clip out of the spring clip seat is mounted at the bottom of the disassembly front hook body; this design enables the front hook to be firmly fixed on the guide cylinder, while ensuring that the fast spring clip can be pushed out quickly and accurately during the disassembly process. The pushing part mounted at the bottom can effectively push the fast spring clip out of the spring clip seat, thereby improving the disassembly efficiency;

[0008] The disassembly rear hook claw comprises a disassembly rear hook claw body, a disassembly rear hook claw block cooperating with the second slot portion is symmetrically installed on the inner side of the top of the disassembly rear hook claw body, a barb structure 1 is symmetrically installed on the lower part of the disassembly rear hook claw body, and the barb structure 1 is used to fix the rear hook claw seat after cooperating with the iron pad; a barb structure 2 for fixing the fast spring clip is symmetrically installed on the side of the disassembly rear hook claw body corresponding to the disassembly front hook claw.

[0009] Preferably, the front mounting hook claw includes a front mounting hook claw body; on the inner side of the top of the front mounting hook claw body, front mounting hook claw blocks that cooperate with the third card slot portion are symmetrically installed. On both sides of the bottom of the front mounting hook claw body, side hook structures are hingedly installed. The side hook mechanism includes a side hook arm. The top of the side hook arm is installed on the side of the front mounting hook claw block through a rotating shaft. An inwardly directed hook is installed at the bottom of the side hook arm. A reset torsion spring is installed on the rotating shaft. A locking mechanism for locking the position of the side hook structure is also installed on the front hook claw body. The design of the side hook structure enables the quick release clip to be released or fixed easily by simply operating (such as pulling the pull handle) to twist the side hook mechanism when adjustment or disassembly of the quick release clip is required. This design greatly improves the convenience and efficiency of the operation;

[0010] The rear mounting hook claw includes a rear mounting hook claw body. On the inner side of the top of the rear mounting hook claw body, rear mounting hook claw blocks that cooperate with the first card slot portion are symmetrically installed. A second pushing portion is installed at the bottom of the rear mounting hook claw body for pushing the quick release clip during installation operation.

[0011] Preferably, the locking mechanism includes a pull handle hingedly connected to the side hook arm. A connecting arm is installed at the top of the side hook arm. The bottom of the pull handle is connected to the connecting arm. A handle stop block that cooperates with the pull handle is installed on the top of the front hook claw seat. When the pull handle is flipped to the handle stop block, it is in the locked position to lock the side hook and prevent the side hook from unhooking. When the pull handle is disengaged from the handle stop block, pulling the pull handle can twist the side hook mechanism.

[0012] Preferably, the locking mechanism includes a pull handle and a linkage crank. The bottom of the pull handle is hingedly installed on the front mounting hook claw body. A connecting portion is installed at the top of the side hook arm. One end of the linkage crank is hingedly connected to the middle of the pull handle, and the other end of the linkage crank is hingedly connected to the connecting arm. A handle stop block that cooperates with the pull handle is installed on the top of the front hook claw seat. When the pull handle is flipped to the handle stop block, it is in the locked position to lock the side hook and prevent the side hook from unhooking. When the pull handle is disengaged from the handle stop block, pulling the pull handle can twist the side hook mechanism.

[0013] Preferably, the first card slot portion, the second card slot portion, and the third card slot portion are all through slots with a rectangular cross-section. The first card slot portion and the second card slot portion are arranged in parallel and have the same size

[0014] The beneficial effects of the above solution are mainly reflected in the following aspects:

[0015] (1) The power input is a rechargeable electric oil pump or a manual oil pump for power transmission with the oil cylinder, which is more energy-saving and environmentally friendly compared to the traditional mechanical drive method. At the same time, the electric oil pump is easy to carry and the power supply can be replaced simply. When the power supply is sufficient, long-term operation can be achieved by replacing the power supply. When the power source fails, the manual hydraulic pump can be replaced for use, and the use of the equipment will not be delayed due to power source failure or maintenance.

[0016] (2) The oil cylinder is installed inside the guide cylinder. A rear plug is installed at the rear end of the guide cylinder to connect the handle seat and is connected to the push rod inside the oil cylinder through bolts. A rear hook seat is installed outside the guide cylinder, and the rear hook seat is connected to the oil cylinder through a guide pin to achieve power transmission.

[0017] (3) Grooves for installing hooks are respectively provided at the front end of the guide cylinder and the rear hook seat. By replacing different hooks, the fixing method of the equipment can be changed to achieve the function of quickly disassembling and assembling the elastic rail clip; and the hooks are all strengthened and their lengths are increased for easy replacement.

[0018] (4) A spring is installed inside the guide cylinder to play a role in returning to the original position.

[0019] (5) The hook combinations for installation and disassembly are both designed with fixing devices for the equipment, which can effectively prevent safety hazards such as unhooking and slipping. A barb structure is provided below the rear hook for disassembly, and a side hook structure is provided for the front hook for installation, and an anti-unhooking device is designed for the side hook structure. Through the cooperation of the hand-held handle and the handle stop block, the side hook can be mechanically locked during operation.

[0020] (6) Each component in the equipment can be replaced in case of damage, and the maintenance is convenient. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the equipment;

[0022] Figure 2 is the internal structural schematic diagram of the equipment;

[0023] Figure 3 is the three-dimensional structural schematic diagram of the equipment equipped with the disassembly hook assembly;

[0024] Figure 4 is the front view of the equipment equipped with the disassembly hook assembly;

[0025] Figure 5 is the structural schematic diagram of the front hook for disassembly;

[0026] Figure 6 is the structural schematic diagram of the rear hook for disassembly;

[0027] Figure 7 is the three-dimensional structural schematic diagram of the equipment equipped with the installation hook assembly;

[0028] Figure 8 Front view of the device equipped with the installation claw assembly;

[0029] Figure 9 Schematic structural diagram of the front installation claw;

[0030] Figure 10 Schematic structural diagram of the rear installation claw;

[0031] Figure 11 Schematic structural diagram of the locking mechanism in Embodiment 1;

[0032] Figure 12 Schematic structural diagram of the locking mechanism in Embodiment 1;

[0033] Figure 13 Schematic structural diagram of the quick spring clip

[0034] Figure 14 Analysis of the movement trajectory of the middle toe section of the spring clip;

[0035] Figure 15 Analysis of the movement trajectory of the arc section at the end of the middle toe of the spring clip

[0036] Figure 16 Schematic diagram of the process of the first installation operation form of the device;

[0037] Figure 17 Schematic diagram of the process of the second installation operation form of the device;

[0038] Figure 18 Schematic diagram of the process of the device disassembly operation form;

[0039] Figure 19 Top view of the disassembly clamping boss;

[0040] Figure 20 Front view of the disassembly clamping boss;

[0041] Figure 21 Top view of the installation clamping boss;

[0042] Figure 22 Front view of the installation clamping boss.

[0043] In the figure: 1. Body; 2. Guide cylinder; 3. Oil cylinder; 4. Power interface; 5. Rear claw seat; 6. Front claw seat; 7. Elastic support; 8. Handle seat; 9. First card slot part; 10. Second card slot part; 11. Third card slot part; 12. Handle stopper; 13. Rear plug; 14. Bolt; 15. Guide pin; 16. Quick spring strip; 17. Front end of the side toe of the quick spring strip; 18. Front end of the middle toe of the quick spring strip; 19. Arc at the end of the middle toe of the quick spring strip; 20. Demountable rear claw; 21. Demountable front claw; 22. Mounting rear claw; 23. Mounting front claw; 24. Working position; 25. Pre-assembly position; 26. Demounting position; 27. Movement track of the front end of the middle toe; 28. Movement track of the arc at the end of the middle toe; 29. Power source;

[0044] 200. Demountable rear claw body; 201. Demountable rear claw block; 202. Inverted hook structure II; 203. Inverted hook structure I;

[0045] 211. Demountable front claw body; 212. Demountable front claw block; 213. Pushing part I;

[0046] 220. Mounting rear claw body; 221. Mounting rear claw block; 222. Pushing part II;

[0047] 230. Mounting front claw body; 231. Mounting front claw block; 232. Side hook structure; 233. Lifting handle; 234. Rotating shaft; 235. Reset torsion spring; 236. Linkage crank; 237. Connecting part. Detailed implementation mode

[0048] The preferred implementation modes of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation modes are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0049] Example 1: As Figure 1-11, A device for quickly disassembling and assembling elastic fasteners, including a machine body 1. A guide cylinder 2 is installed on the machine body 1. An oil cylinder 3 is coaxially and movably installed in the guide cylinder 2. A rear hook seat 5 is movably installed outside the guide cylinder 2. The rear hook seat 5 is connected to the side wall of the oil cylinder to achieve power transmission, that is, the movement of the oil cylinder drives the movement of the rear hook seat. One end of the push rod of the oil cylinder is connected to the guide cylinder. An elastic support 7 for resetting the linear telescopic driving member is also installed in the guide cylinder corresponding to the other end of the oil cylinder. One end of the elastic support 7 abuts against the oil cylinder, and the other end of the elastic support abuts against the inner wall of the guide cylinder. In this embodiment, the elastic support 7 uses a rectangular spring to play a role in returning to the original position. The first slot part 9 and the second slot part 10 are installed on the rear hook seat. The first slot part and the second slot part are respectively used for fixedly installing and disassembling the rear hook; A front hook seat 6 is installed at the tail of the guide cylinder. A third slot part 11 is opened on the front hook seat. The third slot part is used for fixedly disassembling and installing the front hook;

[0050] The oil cylinder 3 is provided with a power interface 4, and the power interface is connected to an electric oil pressure pump or a manual oil pump; By providing the oil cylinder with a power interface 4 and enabling it to be connected to an electric oil pressure pump or a manual oil pump, this device provides a flexible power source 29 selection; This design enables the device to use an electric oil pressure pump to achieve efficient operation in places with sufficient power supply, and also enables it to operate through a manual oil pump in places without electricity or with unstable power supply, greatly improving the applicability and reliability of the device.

[0051] A handle seat 8 for easy gripping is installed at one end of the machine body 1 away from the front hook seat, making the device more convenient to move and operate. Workers can easily lift the device for quick transfer and positioning, improving work efficiency and operation flexibility.

[0052] A rear plug 13 is installed at the rear end of the guide cylinder and is connected to the push rod inside the oil cylinder through a bolt 14. The rear hook seat is connected to the side wall of the oil cylinder through a guide pin 15 to achieve power transmission. A chute is opened on the outer wall of the guide cylinder corresponding to the positions of the guide pin and the power interface; This design enhances the structural stability of the device and at the same time makes the connection between the push rod and the guide cylinder more firm and reliable. The rear hook seat is connected to the side wall of the oil cylinder through a guide pin, achieving effective power transmission and ensuring the precise movement of the front hook and the rear hook.

[0053] During the disassembly operation, the distance between the disassembly front hook 21 and the disassembly rear hook 20 becomes smaller under the action of the oil cylinder, and the disassembly front hook 21 pushes the fast spring clip out of the working position; for the disassembly hook accessories, the disassembly front hook includes an embracing disassembly front hook body 211, and a disassembly front hook block 212 cooperating with the third slot portion is symmetrically installed on the inner side of the top of the disassembly front hook body, and a pushing portion 213 for pushing the fast spring clip out of the spring clip seat is installed at the bottom of the disassembly front hook body; this design enables the front hook to be firmly fixed on the guide cylinder, and at the same time ensures that the fast spring clip can be quickly and accurately pushed out during the disassembly process. The pushing part installed at the bottom can effectively push the fast spring clip out of the spring clip seat, thereby improving the disassembly efficiency; disassembling the rear hook includes disassembling the rear hook body 200, on the inner side of the top of the disassembly rear hook body is symmetrically installed a disassembly rear hook block 201 cooperating with the second slot part, and on the lower part of the disassembly rear hook body is symmetrically installed a barb structure 203, and the barb structure 1 is used to fix the rear hook seat after cooperating with the iron pad; on the disassembly rear hook body, a barb structure 202 for fixing the fast spring clip is symmetrically installed on the side corresponding to the disassembly front hook.

[0054] During the installation operation, the distance between the front hook 23 and the rear hook 22 becomes smaller under the action of the oil cylinder, and the rear hook pushes the fast spring bar to the working position; for the installation of the hook accessories, the front hook includes installing the front hook body 230; the front hook block 231 cooperating with the third slot is symmetrically installed on the inner side of the top of the front hook body, and the side hook structure 232 is hingedly installed on both sides of the bottom of the front hook body, and the side hook mechanism includes a side hook arm, the top of the side hook arm is installed on the side of the front hook block through the rotating shaft 234, the bottom of the side hook arm is installed with an inward hook, and a reset torsion spring 235 is installed on the rotating shaft; a locking mechanism for locking the position of the side hook structure is also installed on the front hook body; the design of the side hook structure allows the side hook mechanism to be twisted by simple operations (such as pulling the lifting handle) when the fast spring bar needs to be adjusted or removed, thereby easily achieving the release or fixation of the fast spring bar. This design greatly improves the convenience and efficiency of operation;

[0055] The installation rear hook 22 includes an installation rear hook body 220, on the inner side of the top of the installation rear hook body is symmetrically installed with an installation rear hook block 221 that cooperates with the first slot part, and the bottom of the installation rear hook body is installed with a pushing part 222 for pushing the fast spring bar during installation.

[0056] The locking mechanism includes a lifting handle 233 hinged to the side hook arm. A connecting arm is installed at the top of the side hook arm, and the bottom of the lifting handle is connected to the connecting arm. A handle stop block 12 is installed at the top of the front hook claw body. When the lifting handle is flipped to the handle stop block, it is in the locked position to lock the side hook and prevent the side hook from unhooking. When the lifting handle disengages from the handle stop block, pulling the lifting handle can twist the side hook mechanism.

[0057] Embodiment 2:

[0058] Such as Figure 1-10 In this embodiment, the difference from Embodiment 1 is that the locking mechanism in this embodiment includes a lifting handle and a linkage crank. The bottom of the lifting handle is hinged and installed on the front hook claw body. A connecting part 237 is installed at the top of the side hook arm. One end of the linkage crank 236 is hinged to the middle of the lifting handle, and the other end of the linkage crank 236 is hinged to the connecting arm. A handle stop block is installed at the top of the front hook claw body. When the lifting handle is flipped to the handle stop block, it is in the locked position to lock the side hook and prevent the side hook from unhooking. When the lifting handle disengages from the handle stop block, pulling the lifting handle can twist the side hook mechanism, that is, the mechanical locking is realized by using the crank-slider mechanism.

[0059] Combined with the structure of the equipment in the above embodiments, the main core components of this equipment are as follows:

[0060] (1) Power input part: The oil cylinder is provided with a joint, which can be connected to an electric oil pump or a manual oil pump. One end of the oil cylinder is connected to the guide cylinder with bolts, and the other end is connected to the rear hook claw seat with a guide pin. By replacing the hook claw, different components of the equipment can be fixed, so that the equipment can realize the functions of advancing and retreating.

[0061] (2) Main body part: The main body part is composed of an oil cylinder, a return spring, a guide cylinder, a rear hook claw seat, an oil cylinder, a rear plug, a guide pin, and bolts. Grooves for installing hook claws are provided at the front end of the guide cylinder and the rear hook claw seat. By replacing different hook claws, the fixed parts can be replaced, so as to realize the forward or backward thrust, and it can be restored to the initial state by a rectangular spring when the operation is completed.

[0062] (3) Claw part: There are two types of front and rear claws in this design. Among them, the disassembly front claw and the disassembly rear claw correspond to the disassembly function, and the installation front claw and the installation rear claw correspond to the installation function. During disassembly, mainly the disassembly rear claw cooperates with the iron backing plate. The rear claw seat is fixed by the cooperation of the barb structure below the rear claw and the iron backing plate. At this time, during operation, the guide cylinder moves backward, and the disassembly front claw installed at the front end of the guide cylinder pushes the quick clip out of the clip seat to complete the disassembly operation; during installation, mainly the installation front claw cooperates with the iron backing plate, and the side hook is mechanically locked by the hand-held handle and the handle stop block to fix the guide cylinder. The same purpose can also be achieved through the crank-slider mechanism. At this time, during operation, the rear claw seat moves forward, and the installation rear claw installed on the rear claw seat pushes the quick clip to the working position to complete the installation operation.

[0063] A disassembly method of a device for disassembling and assembling quick clips includes the following steps:

[0064] (1) Install the corresponding claw group during disassembly operation. Specifically, install the rear claw of the disassembly tooling on the second card slot part of the rear claw seat, and install the front claw of the disassembly tooling on the third card slot part at the tail of the guide cylinder;

[0065] (2) Place the device at the working position, fix the rear claw seat and the quick clip fastener by using the barb structure below the rear claw of the disassembly tooling, and stabilize the device through the reaction force of the front claw of the disassembly tooling;

[0066] (3) Start the power source of the oil cylinder. Through the movement of the push rod in the oil cylinder, since the cooperation between the rear claw of the disassembly tooling and the fastener has fixed the rear claw seat, the oil cylinder is connected to the rear claw seat through the guide pin, and the push rod in the oil cylinder is connected to the rear plug through the bolt. Apply a backward thrust to the rear plug to make the guide cylinder move backward, and push out the quick clip through the front claw of the disassembly tooling;

[0067] (4) After disassembly, stop the power source of the oil cylinder backward, and the guide cylinder is reset through the elastic reset support to complete the disassembly operation.

[0068] An installation method of a device for disassembling and assembling quick clips includes the following steps:

[0069] (1) Install the corresponding claw group for the installation operation. Specifically, install the rear claw of the assembly tooling on the first card slot part of the rear claw seat, and install the front claw of the assembly tooling on the third card slot part at the tail of the guide cylinder;

[0070] (2) Place the device at the working position, fix the guide cylinder and the quick clip fastener by using the boss below the front claw of the assembly tooling, and place the hand-held handle at the handle stop block. Lock the side hook by fixing the hand-held handle to prevent the side hook from unhooking and the device from tilting up;

[0071] (3) Activate the power source of the oil cylinder. Since the front claw of the assembly tooling fixes the guide cylinder, the force exerted by the push rod in the oil cylinder on the rear plug is transmitted to the oil cylinder. The oil cylinder is connected to the rear claw seat through a guide pin, applying a forward thrust to the rear claw seat. The elastic clip is pushed to the working position by the rear claw of the assembly tooling;

[0072] (4) After the installation is completed, turn off the electric oil pump. The guide cylinder is reset through the elastic reset support member. Lift the hand handle to remove the equipment and complete the installation operation.

[0073] Regarding the feasibility analysis of the above equipment, as Figures 13-22 :

[0074] Analysis of the installation and disassembly movement trajectories of the quick elastic clip:

[0075] (1) First, analyze the movement trajectory of the quick elastic clip 16 during disassembly and assembly. There are 5 contact points between the quick elastic clip and the fastener and the rail during disassembly and assembly: ① the front end of the middle toe of the quick elastic clip 18, ② the arc at the end of the middle toe of the left and right quick elastic clips 19, ③ the front ends of the side toes of the left and right quick elastic clips 17.

[0076] Due to the inclined plane on the tie plate to prevent the elastic clip from withdrawing and the elastic clip sliding surface at the front end of the elastic clip seat to assist the elastic clip cap in clamping the rail, after clamping the rail, it moves along the inclined plane of the rail bottom. Therefore, when installing the quick elastic clip, it does not move in a straight line, but the quick elastic clip moves obliquely upward. During the movement, the longitudinal change at the rear arc of the elastic clip is relatively large, and the clamping force on the rail also gradually increases.

[0077] As shown in the figure, push the quick elastic clip from the disassembly position to the installation position.

[0078] ① The movement trajectory 27 of the front end of the middle toe of the quick elastic clip is to first move horizontally on the fastener and then move obliquely upward on the inclined plane of the rail bottom after contacting the rail. Connect the centers of the middle toe cross-sections at the installation position 24, the pre-assembly position 25, and the disassembly position 26, and draw its movement trajectory. The inclined plane of the rail bottom is relatively gentle, and the displacement in the vertical direction is relatively small. The movement trajectory is regarded as the connecting line of the centers of the middle toes of the elastic clip at the working position, the pre-assembly position, and the disassembly position.

[0079] ② The front ends of the two side toes of the quick elastic clip move downward along the slope in the card slot of the tie plate of the quick elastic clip fastener. Since the front ends of the two side toes do not contact the hydraulic equipment for disassembling and assembling the quick elastic clip, no detailed analysis is made.

[0080] ③ The arc movement trajectory 28 of the two middle toes at the end of the quick clip is a straight upward-slanting movement from the disassembly state to the pre-assembly state, and its movement trajectory from the pre-assembly state to the installation state is to move along the slope under the fastening plate of the quick clip fastener. Its overall trajectory is to first move in a straight line obliquely upward and then move in a straight line obliquely downward. The movement trajectory of the clip is regarded as the connecting diagonal line of the centers of the arc cross-sections at the ends of the middle toes of the clip in the installation position and the disassembly position.

[0081] (2) Analysis of the stability of the overall equipment and structural design:

[0082] During the installation process, the quick clip does not move in a straight line. Instead, it first moves obliquely upward and then moves in a straight line. When moving obliquely upward, an obliquely upward component force will be generated, causing the rear end of the equipment to lift. To prevent the equipment from lifting and detaching, side hooks are installed on both sides of the front hook before installation for fixation. The front end face of the side hook is flush with the rear end face of the front hook before installation, and a hand-held handle is installed to connect the side hook. Since the mating part of the side hook and the fastening plate is an inclined plane and is prone to slipping out, a handle stopper is installed at the front end of the guide cylinder. After the side hook hooks the clip seat, the side hook can be mechanically locked to fix the guide cylinder on the clip seat.

[0083] The main forces on the equipment are the reaction forces exerted by the quick clip on the front hook before disassembly and the rear hook after installation during the operation of the equipment. This reaction force is the dynamic friction and static friction between the clip and the fastener, and its acting point is equal in magnitude and opposite in direction to the thrust of the hook. A clip cap is provided at the front end of the middle toe of the quick clip. When disassembling, the front hook before disassembly contacts the clip cap, and the front hook before disassembly is designed as a flat structure. The end of the side toe of the quick clip is in the shape of a large arc. When installing, the rear hook contacts the end of the side toe. As the quick clip moves forward, a small displacement will occur between the end of the clip and the rear hook after installation. The rear hook after installation is designed as a relatively wide and large surface, so that within the small displacement range of the quick clip, the thrust direction exerted by the rear hook can pass through the center of the circular cross-section of the contact point.

[0084] (1) During the installation process of the quick clip, the power of the hook is provided by the oil cylinder. The oil cylinder is arranged in the guide tube and is connected to the rear hook seat and the rear plug. The equipment will be subjected to the thrust transmitted by the oil cylinder and the reaction force exerted by the hook part. In order for the equipment to offset these two forces, it needs to be fixed to the fastener, and the boss needs to be fixed on both the X-axis and the Y-axis in the figure. Different adjustments need to be made according to different fastener structures and working contents, such as Figures 19-22 , which is a setting form of the clamping boss for the installation and disassembly of the clip of the fastener.

[0085] It should be noted that in the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0086] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0087] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0088] So far, the technical solution of the present utility model has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. An equipment for quickly disassembling and assembling elastic rail clips, characterized in that: It comprises a machine body, on which a guide cylinder is mounted, inside which a cylinder is coaxially and movably mounted, and the cylinder is provided with a power interface, and the power interface is connected to an electric hydraulic pump or a manual oil pump; a rear hook claw seat is movably mounted outside the guide cylinder, and the rear hook claw seat is connected to the side wall of the cylinder to realize power transmission, one end of a push rod of the cylinder is connected to the guide cylinder, and an elastic support member for resetting a linear telescopic drive member is also mounted at the other end of the guide cylinder corresponding to the cylinder, one end of the elastic support member is supported on the cylinder, and the other end of the elastic support member is supported on the inner wall of the guide cylinder; a first slot portion and a second slot portion are mounted on the rear hook claw seat, and the first slot portion and the second slot portion are respectively used for fixing and installing and disassembling the rear hook claw ; A front hook seat is provided at the rear end of the guide cylinder, and a third slot portion is provided on the front hook seat, and the third slot portion is used for fixing the disassembly and installation of the front hook; during the disassembly operation, the distance between the disassembled front hook and the disassembled rear hook becomes smaller under the action of the oil cylinder, and the disassembled front hook pushes the fast spring bar out of the working position; during the installation operation, the distance between the installed front hook and the installed rear hook becomes smaller under the action of the oil cylinder, and the installed rear hook pushes the fast spring bar to the working position; a rear plug is installed at one end of the guide cylinder away from the front hook seat, and is connected to the push rod inside the oil cylinder by bolts, and the rear hook seat is connected to the side wall of the oil cylinder by a guide pin to realize power transmission; a handle seat for easy holding is installed at one end of the machine body away from the front hook seat.

2. The device for disassembling and assembling a fast clip according to claim 1, characterized in that: The disassembly front hook comprises an embracing disassembly front hook body, a disassembly front hook block cooperating with the third clamping groove is symmetrically mounted on the inner side of the top of the disassembly front hook body, and a pushing part 1 for pushing the fast spring clip out of the spring clip seat is mounted on the bottom of the disassembly front hook body; The disassembly rear hook claw comprises a disassembly rear hook claw body, a disassembly rear hook claw block cooperating with the second slot portion is symmetrically installed on the inner side of the top of the disassembly rear hook claw body, a barb structure 1 is symmetrically installed on the lower part of the disassembly rear hook claw body, and the barb structure 1 is used to fix the rear hook claw seat after cooperating with the iron pad; a barb structure 2 for fixing the fast spring clip is symmetrically installed on the side of the disassembly rear hook claw body corresponding to the disassembly front hook claw.

3. The device for disassembling and assembling a fast clip according to claim 1, characterized in that: The front hook installation claw comprises a front hook installation claw body; a front hook installation claw block cooperating with the third clamping groove is symmetrically installed on the inner side of the top of the front hook installation claw body; side hook structures are hingedly installed at both sides of the bottom of the front hook installation claw body; the side hook mechanism comprises a side hook arm, the top of the side hook arm is installed on the side of the front hook installation claw block through a rotating shaft, an inward hook is installed at the bottom of the side hook arm, and a reset torsion spring is installed on the rotating shaft; a locking mechanism for locking the position of the side hook structure is also installed on the front hook body; The installed hook claw includes an installed hook claw body. Inside the top of the installed hook claw body, installed hook claw blocks that cooperate with the first card slot part are symmetrically installed. At the bottom of the installed hook claw body, a second pushing part is installed, which is used to push the quick elastic strip during the installation operation.

4. The device for quickly disassembling and assembling elastic rail clips according to claim 3, characterized in that: The locking mechanism includes a lifting handle hinged to the side hook arm. A connecting arm is installed at the top of the side hook arm, and the bottom of the lifting handle is connected to the connecting arm. A handle stop block that cooperates with the lifting handle is installed at the top of the front hook claw seat. When the lifting handle is flipped to the handle stop block, it is in the locked position to mechanically lock the side hook mechanism and prevent the side hook mechanism from unhooking. When the lifting handle is separated from the handle stop block, pulling the lifting handle can twist the side hook mechanism.

5. The device for quickly disassembling and assembling elastic rail clips according to claim 3, characterized in that: The locking mechanism includes a lifting handle and a linkage crank. The bottom of the lifting handle is hinged and installed on the front installed hook claw body. A connecting part is installed at the top of the side hook arm. One end of the linkage crank is hinged to the middle of the lifting handle, and the other end of the linkage crank is hinged to the connecting arm. A handle stop block that cooperates with the lifting handle is installed at the top of the front hook claw seat. When the lifting handle is flipped to the handle stop block, it is in the locked position to mechanically lock the side hook mechanism and prevent the side hook mechanism from unhooking. When the lifting handle is separated from the handle stop block, pulling the lifting handle can twist the side hook mechanism.

6. The device for quickly disassembling and assembling elastic rail clips according to claim 1, characterized in that: The first card slot part, the second card slot part, and the third card slot part are all through slots with a rectangular cross-section. The first card slot part and the second card slot part are arranged in parallel and have the same size.

Images