Combined shock absorber

Abstract

The utility model discloses a combined shock absorber which comprises a bottom plate, two fixing blocks are fixedly connected to the side wall of the top of the bottom plate, four threaded holes are formed in the side wall of the top of the bottom plate, a first shock pad is placed on the side wall of the top of the bottom plate, and the first shock pad is located between the two fixing blocks. A second damping pad is placed at the top of the first damping pad, a rail is arranged at the top of the second damping pad, mounting grooves are formed in the side walls of the two fixing blocks, the two mounting grooves are connected with elastic strips through fixing devices, and one ends of the two mounting grooves are rotationally connected with baffles through hinges; and handles are fixedly connected to the side walls of the two baffles. Through mutual cooperation of the fixing rod, the limiting rod, the pressing block, the extrusion plate and other components, the elastic strip can be installed in a hidden mode, so that the elastic strip is prevented from being exposed in the visual field, the risk that the elastic strip is stolen is reduced, operation is easy, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a combined shock absorber. Background Art

[0002] Railway tracks, also known as rails, iron rails, and tracks, are used on railways and work with switches to allow trains to run without turning. Tracks are usually composed of two parallel steel rails fixed on sleepers with ballast under them. Rails made of steel can withstand greater weight than other materials. Sleepers are also called sleepers or road sleepers. Their function is to distribute the weight of the rails, keep the rails fixed, and maintain the track gauge. Combined shock absorbers are also required during use.

[0003] For example, Chinese patent publication number CN211420738U discloses a combined compression rail vibration damper, comprising a sleeper, a limiting protrusion is formed on the top of the sleeper, and a pre-buried screw is installed inside the sleeper, a second shock-absorbing pad is installed on the side of the top of the sleeper close to the limiting protrusion, a first shock-absorbing pad is installed above the second shock-absorbing pad, and a height-adjusting pad is installed above the first shock-absorbing pad. The utility model fixes the first shock-absorbing pad and the second shock-absorbing pad to one side of the fixing screw by moving the groove, so that the first shock-absorbing pad and the second shock-absorbing pad can be fixed, and the first shock-absorbing pad and the second shock-absorbing pad need to be replaced.

[0004] However, in the above solution, the spring bar cannot be installed in a hidden manner, but is installed on the surface of the fixed block by bolts, which poses a risk of theft, thereby causing loss of resources and affecting the use of the shock absorber, and is not very safe. Utility Model Content

[0005] The utility model provides a combined shock absorber to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A combined shock absorber comprises a bottom plate, two fixed blocks are fixedly connected to the top side wall of the bottom plate, four threaded holes are provided on the top side wall of the bottom plate, a first shock-absorbing pad is placed on the top side wall of the bottom plate, the first shock-absorbing pad is located between the two fixed blocks, a second shock-absorbing pad is placed on the top of the first shock-absorbing pad, a track is provided on the top of the second shock-absorbing pad, mounting grooves are provided on the side walls of the two fixed blocks, the two mounting grooves are connected to elastic bars through fixing devices, the elastic bars are arranged in an M shape, and one end of the two mounting grooves is rotatably connected to a baffle through a hinge , handles are fixedly connected to the side walls of the two baffles, engaging grooves are opened on the top side walls of the two fixed blocks, pressure blocks are slidably connected in the two engaging grooves, the bottoms of the two pressure blocks are against the side walls of the track, two fixing rods are slidably connected to the tops of the two pressure blocks, and rotating blocks are fixedly connected to the tops of the four fixing rods. External threads are provided on the side walls of the lower ends of the four fixing rods, and the bottoms of the four fixing rods penetrate corresponding pressure blocks, and the bottoms of the four fixing rods penetrate the first shock-absorbing pad and the second shock-absorbing pad and are respectively threaded in the corresponding threaded holes.

[0008] As a further improvement of the present technical solution: the two fixing devices each include two pads, each two of the pads are respectively fixedly connected to the bottom side walls of the mounting groove, the tops of the four pads are respectively fixedly connected to the limiting rods, the tops of the four limiting rods are respectively fixedly connected to the top side walls of the corresponding mounting grooves, the two elastic bars are respectively engaged with the side walls of the two limiting rods in the two mounting grooves, the tops of the two elastic bars are respectively provided with extrusion plates, the two extrusion plates are respectively slidably connected to the outer ring side walls of the two limiting rods in the two mounting grooves, the tops of the two extrusion plates are rotatably connected with bolts, the tops of the two bolts pass through the corresponding fixing blocks and are threadedly connected to the fixing blocks.

[0009] As a further improvement of the technical solution: rubber pads are provided at the bottom of the two extrusion plates.

[0010] As a further improvement of the technical solution: the two fixing blocks and the two bolts are both made of stainless steel.

[0011] As a further improvement of the technical solution: the surfaces of the four rotating blocks are all provided with anti-slip grooves.

[0012] As a further improvement of the technical solution: anti-slip pads are provided on the bottom side walls of the two pressing blocks.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the device can conceal the spring bar through the cooperation of the fixing rod, the limiting rod, the pressure block, the extrusion plate and other components, thereby avoiding the spring bar from being exposed to the field of vision, reducing the risk of the spring bar being stolen, and having simple operation and high safety.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of a combined shock absorber proposed by the utility model;

[0017] Figure 2 for Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0018] Figure 3 A schematic diagram of the side structure of a combined shock absorber proposed by the utility model;

[0019] Figure 4 A schematic diagram of the side cross-sectional structure of a combined shock absorber proposed by the utility model;

[0020] Figure 5 The utility model is a schematic diagram of a top view of a spring bar in a combined shock absorber.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Bottom plate; 2. Cushion block; 3. Baffle; 4. Fixed block; 5. Bolt; 6. Spring bar; 7. Mounting slot; 8. Threaded hole; 9. First shock-absorbing pad; 10. Second shock-absorbing pad; 11. Fixed rod; 12. Limit rod; 13. Track; 14. Rotating block; 15. Pressing block; 16. Engaging slot; 17. Extrusion plate; 18. Handle. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] See also Figure 1-5 In the embodiment of the utility model, a combined shock absorber includes a bottom plate 1, two fixing blocks 4 are fixedly connected to the top side wall of the bottom plate 1, four threaded holes 8 are opened on the top side wall of the bottom plate 1, a first shock-absorbing pad 9 is placed on the top side wall of the bottom plate 1, the first shock-absorbing pad 9 is located between the two fixing blocks 4, a second shock-absorbing pad 10 is placed on the top of the first shock-absorbing pad 9, and a track 13 is arranged on the top of the second shock-absorbing pad 10, and mounting grooves 7 are opened on the side walls of the two fixing blocks 4, and the two mounting grooves 7 are connected to elastic bars 6 through fixing devices, and the elastic bars 6 are arranged in an M shape, and one end of the two mounting grooves 7 is rotatably connected to a baffle 3 through a hinge, and the two baffles 3 are on the side walls. A handle 18 is fixedly connected, and a snap-fit ​​groove 16 is provided on the top side wall of the two fixed blocks 4. A pressure block 15 is slidably connected in the two snap-fit ​​grooves 16. An anti-slip pad is provided on the bottom side wall of the two pressure blocks 15. The bottoms of the two pressure blocks 15 are against the side wall of the track 13. Two fixed rods 11 are slidably connected to the top of the two pressure blocks 15. The tops of the four fixed rods 11 are fixedly connected with a rotating block 14. The side walls of the lower ends of the four fixed rods 11 are provided with external threads. The bottoms of the four fixed rods 11 penetrate the corresponding pressure blocks 15. The bottoms of the four fixed rods 11 penetrate the first shock-absorbing pad 9 and the second shock-absorbing pad 10 and are respectively threadedly connected to the corresponding threaded holes 8.

[0027] See also Figure 1-5, the two fixing devices each include two pads 2, each two pads 2 are respectively fixedly connected to the bottom side wall of the mounting groove 7, the tops of the four pads 2 are fixedly connected to the limit rods 12, the tops of the four limit rods 12 are fixedly connected to the top side wall of the corresponding mounting groove 7, the two spring bars 6 are respectively engaged with the side walls of the two limit rods 12 in the two mounting grooves 7, the tops of the two spring bars 6 are respectively provided with extrusion plates 17, the two extrusion plates 17 are respectively slidably connected to the outer ring side walls of the two limit rods 12 in the two mounting grooves 7, and the two extrusion plates 17 are respectively slidably connected to the outer ring side walls of the two limit rods 12 in the two mounting grooves 7. The top of the pressure plate 17 is rotatably connected with bolts 5, and the tops of the two bolts 5 pass through the corresponding fixing blocks 4 and are threadedly connected to the fixing blocks 4. By turning the bolts 5, the bolts 5 can drive the extrusion plate 17 to move up and down when rotating. By turning the bolts 5, the extrusion plate 17 moves upward, thereby releasing the fixation of the extrusion plate 17 to the spring bar 6, and then the spring bar 6 can be pulled out, and then the new spring bar 6 can be inserted into the side walls of the two limit rods 12, and the bolts 5 are turned to move downward through the extrusion plate 17, so that the spring bar 6 is fixed.

[0028] See also Figure 1-4 The bottom of the two extrusion plates 17 are both provided with rubber pads, and the rubber pads can prevent the extrusion plates 17 from scratching the surface of the elastic strip 6.

[0029] See also Figure 1-4 The two fixing blocks 4 and the two bolts 5 are all made of stainless steel to prevent the fixing blocks 4 and the bolts 5 from being affected by rust.

[0030] See also Figure 1-4 The surfaces of the four rotating blocks 14 are all provided with anti-skid grooves to prevent slipping when the rotating blocks 14 are rotated.

[0031] The working principle of the utility model is as follows: when the train is running on the surface of the track 13, the track 13 can be damped by the first shock-absorbing pad 9 and the second shock-absorbing pad 10. When the first shock-absorbing pad 9 and the second shock-absorbing pad 10 need to be replaced, the rotating block 14 is twisted, and the rotating block 14 drives the fixing rod 11 to rotate, so that the bottom of the fixing rod 11 is disengaged from the threaded hole 8, and then the fixing rod 11 is lifted up to make the fixing rod 11 disengaged from the first shock-absorbing pad 9 and the second shock-absorbing pad 10 surface, and the first shock-absorbing pad 9 and the second shock-absorbing pad 10 can be pulled out and replaced. After the replacement is completed, the bottom of the fixing rod 11 is passed through the first shock-absorbing pad 9 and the second shock-absorbing pad 10, so as to limit the first shock-absorbing pad 9 and the second shock-absorbing pad 10, and then one end of the fixing rod 11 is screwed into the threaded hole 8, so that the bottom of the rotating block 14 squeezes the pressing block 15, and the pressing block 15 squeezes the side wall of the track 13, so that the entire device is fixed to the track 13;

[0032] When the spring strip 6 needs to be replaced, the handle 18 is pulled, and the handle 18 drives the baffle 3 to rotate, thereby opening the baffle 3, and then the bolt 5 is turned. The bolt 5 can drive the extrusion plate 17 to move up and down when it rotates. By turning the bolt 5, the extrusion plate 17 moves upward, thereby releasing the fixation of the extrusion plate 17 to the spring strip 6, and then the spring strip 6 is pulled to remove the spring strip 6, and then a new spring strip 6 is inserted into the side walls of the two limit rods 12, and the bolt 5 is turned to move downward through the extrusion plate 17, thereby fixing the spring strip 6.

[0033] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A combined shock absorber, comprising a base plate (1), characterized in that: Two fixing blocks (4) are fixedly connected to the top side wall of the bottom plate (1), four threaded holes (8) are provided on the top side wall of the bottom plate (1), a first shock-absorbing pad (9) is placed on the top side wall of the bottom plate (1), the first shock-absorbing pad (9) is located between the two fixing blocks (4), a second shock-absorbing pad (10) is placed on the top of the first shock-absorbing pad (9), a track (13) is provided on the top of the second shock-absorbing pad (10), mounting grooves (7) are provided on the side walls of the two fixing blocks (4), the two mounting grooves (7) are connected to elastic bars (6) through fixing devices, the elastic bars (6) are arranged in an M shape, one end of the two mounting grooves (7) are rotatably connected to a baffle (3) through a hinge, and the two baffles (3) are provided on the side walls. The two fixing blocks (4) are fixedly connected with a handle (18), the top side walls of the two fixing blocks (4) are provided with a snap-fitting groove (16), the two snap-fitting grooves (16) are slidably connected with a pressure block (15), the bottoms of the two pressure blocks (15) are both against the side walls of the track (13), the tops of the two pressure blocks (15) are slidably connected with two fixing rods (11), the tops of the four fixing rods (11) are fixedly connected with a rotating block (14), the lower end side walls of the four fixing rods (11) are provided with external threads, the bottoms of the four fixing rods (11) are penetrated by the corresponding pressure blocks (15), the bottoms of the four fixing rods (11) are penetrated by the first shock-absorbing pad (9) and the second shock-absorbing pad (10) and are respectively threadedly connected in the corresponding threaded holes (8).

2. A combined shock absorber according to claim 1, characterized in that: The two fixing devices each comprise two pads (2), each two of the pads (2) are respectively fixedly connected to the bottom side walls of the mounting groove (7), the tops of the four pads (2) are respectively fixedly connected to the limiting rods (12), the tops of the four limiting rods (12) are respectively fixedly connected to the top side walls of the corresponding mounting grooves (7), the two spring bars (6) are respectively engaged with the side walls of the two limiting rods (12) in the two mounting grooves (7), the tops of the two spring bars (6) are respectively provided with an extrusion plate (17), the two extrusion plates (17) are respectively slidably connected to the outer ring side walls of the two limiting rods (12) in the two mounting grooves (7), the tops of the two extrusion plates (17) are rotatably connected with bolts (5), the tops of the two bolts (5) pass through the corresponding fixing blocks (4) and are threadedly connected to the fixing blocks (4).

3. A combined shock absorber according to claim 2, characterized in that: The bottoms of the two extrusion plates (17) are both provided with rubber pads.

4. A combined shock absorber according to claim 2, characterized in that: The two fixing blocks (4) and the two bolts (5) are all made of stainless steel.

5. A combined shock absorber according to claim 1, characterized in that: The surfaces of the four rotating blocks (14) are all provided with anti-slip grooves.

6. A combined shock absorber according to claim 1, characterized in that: Anti-slip pads are provided on the bottom side walls of the two pressing blocks (15).

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