Rail locking mechanism for protective device

Abstract

The utility model discloses a track locking mechanism for a protective device, which comprises a pressing plate, a push plate, a push rod, two first connecting rods, two second connecting rods and a third connecting rod, the pressing plate is a T-shaped plate, the two first connecting rods are hinged to the two sides of the large end, the other ends of the two first connecting rods are hinged to one end of the push plate, and the two second connecting rods are hinged to the two sides of the other end of the push plate. The upper ends of the two third connecting rods are hinged to a hinge seat, the hinge seat is fixedly connected to the base plate, the lower ends of the two third connecting rods are hinged to the portions, close to the middle, of the two sides of the pressing plate, a push rod is fixedly connected to the top of the push plate, and the push rod is close to the hinged position of the two second connecting rods and the push plate. An ejector rod is arranged below the push plate, the ejector rod and the push rod are kept coaxial, the push rod penetrates through the base plate and then is connected with an assembling and disassembling nut, a thrust bearing is installed between the assembling and disassembling nut and the base plate, and the thrust bearing is connected to the push rod in a sleeved mode. The protective device can be quickly assembled and disassembled, manpower and materials are saved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stone cutting equipment, and in particular relates to a track locking mechanism for a protective device. Background Art

[0002] When excavating deep foundation pits in close proximity to existing railway lines and in complex surrounding environments, the shortcomings of traditional stone blasting excavation are: the construction process brings about greater vibration and interference, the deep foundation pit excavation has great safety risks, and it is impossible to guarantee the safety of deep foundation pit construction, existing railway lines and surrounding buildings.

[0003] A Chinese patent application (publication number CN116277516 A) discloses a mechanical excavation construction method for stonework in a deep urban foundation pit. The cutting process is as follows: cutting the vertical surface of the foundation stone - cutting the horizontal surface of the foundation stone - cutting the foundation stone into blocks in another direction perpendicular to the vertical surface cutting direction. Due to the high-speed operation of the cutting circular saw, broken stones or damaged blades directly hit the cutting device, which can easily damage the equipment and even cause equipment failure.

[0004] In order to solve the above technical problems, the staff proposed to install protective devices on the track. However, it is difficult to install or remove the protective devices, which not only consumes a lot of manpower and materials, but also delays construction efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a track locking mechanism for a protective device, which can be quickly assembled and unassembled, saves labor and materials, and improves construction efficiency.

[0006] The technical scheme adopted by the utility model is a track locking mechanism for a protective device, comprising a pressure plate, a push plate, a push rod, a connecting rod one, a connecting rod two and a connecting rod three. The pressure plate is a T-shaped plate, and two connecting rods one are hinged on both sides of one end of the big head, and the other ends of the two connecting rods one are hinged to one end of the push plate, and two connecting rods two are hinged on both sides of the other end of the push plate, and the other ends of the two connecting rods two are hinged to two connecting rods three near the middle part, and the upper ends of the two connecting rods three are hinged on the hinge seat, and the hinge seat is fixedly connected to the base plate, and the lower ends of the two connecting rods three are hinged on both sides of the pressure plate near the middle part, and the push plate is fixedly connected with the push rod at the top and close to the hinge of the two connecting rods two and the push plate. A push rod is arranged under the push plate, and the push rod is kept coaxial with the push rod. After the push rod passes through the base plate, it is connected with an assembly and disassembly nut, and a thrust bearing is installed between the assembly and disassembly nut and the base plate, and the thrust bearing is sleeved on the push rod.

[0007] Preferably, a second compression spring is sleeved on the push rod, and two ends of the second compression spring abut against the upper end surface of the push plate and the bottom of the base plate.

[0008] Preferably, the bottom of the rail top of the track is abutted against a rubber block, a side baffle abutting against the side of the rail top is arranged on the top left side of the rubber block, and an abutting step is arranged at the bottom for the end of the pressure plate to abut against.

[0009] Preferably, the top of the push rod is a ball head structure, and the bottom of the contacting pressure plate is provided with an abutting arc surface.

[0010] Preferably, a groove is provided at the bottom of the base plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the locking mechanism facilitates the pulling out of the pressure plate away from the track and extending it to the top of the track for compression through various connecting rod structures, and facilitates quick disassembly. When in use, the assembly and disassembly nut is gradually rotated, and the push rod is pulled upward, and the free end of the pressure plate is away from the track. A groove is set at the bottom of the base plate, and the groove is against the track to achieve rapid limit. The assembly and disassembly nut is loosened, and the push rod moves downward under the elastic force of the compression spring, thereby driving the pressure plate to move toward the bottom of the top of the track. When the rubber block contact height reaches 0.5cm, the rubber block is against the bottom of the top of the track, and then the assembly and disassembly nut is gradually rotated, and finally the pressure plate is against the track by elastic force. The device can be quickly loaded and unloaded when in use, saving labor and materials, and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the track locking mechanism structure;

[0013] Figure 2 Schematic diagram of the protective plate structure installed on the track. DETAILED DESCRIPTION

[0014] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0015] Example 1

[0016] like Figure 1-2As shown, the track locking mechanism for the protective device includes a pressure plate 107, a push plate 108, a push rod 109, a connecting rod 110, a connecting rod 2 111 and a connecting rod 3 112. The pressure plate 107 is a T-shaped plate, and two connecting rods 110 are hinged on both sides of one end of the big head, and the other ends of the two connecting rods 110 are hinged to one end of the push plate 108, and two connecting rods 2 111 are hinged on both sides of the other end of the push plate 108. The other ends of the two connecting rods 2 111 are hinged to two connecting rods 3 112 near the middle, and the upper ends of the two connecting rods 3 112 are hinged on the hinge seat 113, and the hinge seat 113 is fixedly connected to the base plate 104. The lower ends of the two connecting rods 3 112 are hinged on both sides of the pressure plate 107 near the middle, and the top of the push plate 108 is hinged. A push rod 109 is fixedly connected and is close to the hinge between the two connecting rods 111 and the push plate 108. A push rod 114 is arranged below the push plate 108. The top of the push rod 114 is a ball head structure, and the bottom of the contacting pressure plate is provided with an abutting arc surface, which can achieve stable abutment. The push rod 114 and the push rod 109 remain coaxial, and the push rod 109 is connected with a mounting and disassembly nut 115 (a threaded portion is provided at the upper end of the push rod) after passing through the base plate 104. A thrust bearing 118 is installed between the mounting and disassembly nut 115 and the base plate 104, and the thrust bearing 118 is sleeved on the push rod 109; a compression spring 116 is also sleeved on the push rod 109, and both ends of the compression spring 116 abut against the upper end surface of the push plate 108 and the bottom of the base plate 104.

[0017] The bottom of the rail top of the rail 301 is against a rubber block 117, and a side baffle is provided on the top of the left side of the rubber block 117 to abut against the side of the rail top, and a step is provided at the bottom for abutting against the end of the pressing plate 107. The push rod 109 moves downward, and the pressing plate 107 can be gradually extended to the rubber block 117 at the bottom of the rail top and reach a certain position, and the pressing plate 107 is pressed against the rubber block 117 by the push rod 114, and the pressing plate 107 is pressed against the rubber block 117. Through various connecting rod structures, it is convenient to pull the pressing plate 107 away from the rail 301 and extend it to the rail top for pressing, so as to facilitate quick release.

[0018] When in use, the assembly and disassembly nut 115 is gradually rotated, the push rod 109 is pulled upward, the free end of the pressure plate 107 is away from the track 301, and a groove is set at the bottom of the base plate 104. After the groove abuts against the track 301, rapid limiting is achieved. The assembly and disassembly nut 115 is loosened, and under the elastic force of the second compression spring 116, the push rod 109 moves downward, thereby driving the pressure plate 107 to move toward the bottom of the top of the track. When the rubber block 117 reaches a contact height of 0.5 cm, the rubber block 117 is abutted against the bottom of the top of the track, and the assembly and disassembly nut 115 is gradually rotated, and finally the pressure plate 107 abuts against the track 301 by elastic force. Among them, the second compression spring 116 and the rubber block 117 can also play an elastic buffering and protective role for the entire protective baffle 101. When encountering a large stone impact, the force is enough to directly overcome the elastic force of the second compression spring 116 and then the pressure plate 107 is separated from the bottom of the top of the track, achieving maximum protection, double buffering, and better effect.

[0019] The locking mechanism is used to quickly connect the protective device to the two rails 301 of the double-blade mining cutter 102. The protective device includes a protective baffle 101. The two sides of the protective baffle 101 in the width direction are rotatably connected to two supports 103. The two supports 103 are fixedly connected to the base plate 104. The protective baffle is set. For the high-speed cutting circular saw, when crushed stone or blade damage occurs, the crushed stone or damaged blade hits the protective baffle, which plays an effective protective role and solves the problem of crushed stone or damaged blade being thrown out and directly hitting the guard pile or other equipment. The back of the protective baffle 101 is connected to a plurality of compression springs 105, and the plurality of compression springs 105 are fixedly connected to the support rod 106. The lower end of the support rod 106 is fixedly connected to the base plate 104, and the base plate 104 is connected to the two rails 301 through two locking mechanisms. The compression springs are arranged to play an elastic buffering role for the hitting stones, so as to avoid the protective baffle 101 from being subjected to excessive instantaneous force and causing rapid damage.

[0020] The above-mentioned embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit and principle of the utility model, various modifications and improvements made by those skilled in the art to the technical solution of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A rail locking mechanism for a protective device, characterized in that: The invention comprises a pressing plate (107), a pushing plate (108), a pushing rod (109), a connecting rod one (110), a connecting rod two (111) and a connecting rod three (112), wherein the pressing plate (107) is a T-shaped plate, and two connecting rods one (110) are hinged on both sides of one end of the large end, and the other ends of the two connecting rods one (110) are hinged to one end of the pushing plate (108), and two connecting rods two (111) are hinged on both sides of the other end of the pushing plate (108), and the other ends of the two connecting rods two (111) are hinged to the two connecting rods three (112) near the middle, and the upper ends of the two connecting rods three (112) are hinged on the hinge seat (113), and the hinge seat (113) is fixedly connected to the bottom On the seat plate (104), the lower ends of the two connecting rods (112) are hinged on both sides of the pressure plate (107) near the middle, the top of the push plate (108) is fixedly connected with a push rod (109) and is close to the hinge between the two connecting rods (111) and the push plate (108), a push rod (114) is arranged below the push plate (108), the push rod (114) and the push rod (109) are kept coaxial, the push rod (109) passes through the base plate (104) and is connected with a mounting nut (115), a thrust bearing (118) is installed between the mounting nut (115) and the base plate (104), and the thrust bearing (118) is sleeved on the push rod (109).

2. The rail locking mechanism for a protective device according to claim 1, characterized in that: The push rod (109) is also sleeved with a second compression spring (116), and the two ends of the second compression spring (116) abut against the upper end surface of the push plate (108) and the bottom of the base plate (104).

3. The rail locking mechanism for a protective device according to claim 1, characterized in that: The bottom of the rail top of the rail (301) is butted against a rubber block (117), a side baffle is arranged on the top of the left side of the rubber block (117) to butt against the side of the rail top, and a butting step is arranged at the bottom for the end of the pressure plate (107) to butt against.

4. The rail locking mechanism for a protective device according to claim 1, characterized in that: The top of the push rod (114) is a ball head structure, and the bottom of the contacting pressure plate (107) is provided with an abutting arc surface.

5. The rail locking mechanism for a protective device according to claim 1, characterized in that: A groove is provided at the bottom of the base plate (104).

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