Sliding sleeve type bidirectional buffering car arrester

Abstract

A sliding sleeve type two-way buffering car arrester belongs to car arresters for rail transportation and comprises a car arrester rack, a sliding sleeve type two-way buffering stopping claw mechanism, a transmission connecting rod mechanism and a driving oil cylinder. The driving oil cylinder is arranged on one side of the sliding sleeve type bidirectional buffering blocking claw mechanism; the transmission connecting rod mechanism is arranged in the center of the car arrester rack; the two groups of sliding sleeve type bidirectional buffer blocking claw mechanisms are symmetrically arranged on the outer side of the track by taking the rack as the center, and each sliding sleeve type bidirectional buffer blocking claw mechanism comprises a blocking claw, a bearing seat, a blocking shaft, a buffer spring, a sliding sleeve and the like; the blocking claw, one end of the bearing seat, the buffer spring and the sliding sleeve are arranged on the outer wall of the blocking shaft, the other end of the bearing seat is arranged on the outer wall of the sliding sleeve, and the buffer spring and the sliding sleeve are arranged on the same side of the bearing seat. The left end and the right end of the buffer spring are extruded respectively, impact force from vehicles in two directions is absorbed respectively, the vehicles can be stopped in two directions, the vehicle stopping efficiency is improved, and the using number of vehicle stoppers in rail transportation, the equipment manufacturing cost and the operation cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of production of car arresters for rail transportation, in particular to a sliding sleeve type bidirectional buffer car arrester. Background Art

[0002] A car arrester is a device widely used in logistics and transshipment applications such as railways, mines, ports, and subways. Its primary function is to position and secure vehicles on the track to prevent uncontrolled movement, thereby ensuring operational safety and improving efficiency. Conventional car arresters only provide one-way buffering. Therefore, when a vehicle reverses and encounters the arrester, the inertial impact can damage the arrester or cause the vehicle to derail. This is why bidirectional buffering car arresters were developed.

[0003] The existing general two-way buffer car arrester technology is to provide a buffer spring on both sides of the bearing seat, cut the arrest shaft into two sections, install the arrest claws, and then connect the two sections of the arrest shaft into one by riveting or welding. Not only is the volume large, but the strength is also prone to problems, and the arrest shaft is often damaged.

[0004] To this end, a sliding sleeve type bidirectional buffer car arrester is provided to solve the above problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a sliding sleeve type bidirectional buffer car arrester to solve the problems raised in the above background technology.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] The utility model provides a sliding sleeve-type bidirectional buffer car stopper. The sliding sleeve-type bidirectional buffer car stopper comprises a car stopper frame, a sliding sleeve-type bidirectional buffer pawl mechanism, a transmission connecting rod mechanism, and a driving cylinder. The driving cylinder is located on one side of the sliding sleeve-type bidirectional buffer pawl mechanism. The transmission connecting rod mechanism is located in the center of the car stopper frame. Two sets of sliding sleeve-type bidirectional buffer pawl mechanisms are provided, symmetrically about the center of the car stopper frame, and are located outside the track.

[0008] As a further embodiment of the present invention, the sliding sleeve-type bidirectional buffer pawl mechanism includes a pawl, a bearing seat, a blocking shaft, a buffer spring, a sliding sleeve, and a locking nut assembly. The pawl, one end of the bearing seat, the buffer spring, and the sliding sleeve are all disposed on the outer wall of the blocking shaft, the other end of the bearing seat is disposed on the outer wall of the sliding sleeve, the pawl is disposed at the center of the bearing seat, and the buffer spring, sliding sleeve, and locking nut assembly are disposed on the same side of the other end of the bearing seat.

[0009] As a further solution of the present invention: the annular step 1 and the annular step 2 are provided on the outer wall of the resistance shaft.

[0010] As a further solution of the present invention: the annular step three is provided on the outer wall of the sliding sleeve.

[0011] As a further solution of the present invention: the driving oil cylinder is arranged inside the car arrester frame, and its output end is connected to and drives one end of the transmission link mechanism. The other end of the transmission link mechanism is connected to and drives the blocking pawl.

[0012] As a further solution of the present invention: the sliding sleeve type bidirectional buffer pawl mechanism is arranged on the top of the car blocker frame. The pawl is arranged on the top of the track in the car blocking state and rotates to the outside of the track in the release state.

[0013] The implementation of the present invention will have the following beneficial effects:

[0014] This embodiment absorbs the impact force of vehicles from two directions by squeezing the left and right ends of the buffer spring respectively, which can stop vehicles in both directions, improve the stopping efficiency, reduce the number of vehicle stoppers used in rail transportation, and reduce equipment cost and operating cost.

[0015] This embodiment utilizes the coordinated use of the blocking pawl, bearing seat, blocking shaft, buffer spring, sliding sleeve, and locking nut assembly to create a more compact, sliding sleeve-type bidirectional buffer car arrester, adapting to smaller locations. It also makes the buffering process more flexible and convenient, facilitating installation and maintenance. The coordinated use of the drive cylinder and transmission connecting rod mechanism results in a smoother and faster blocking action, improving blocking efficiency.

[0016] This embodiment avoids the problem of weak strength of the force points during the buffering process through the integrated design of the block shaft, making the sliding sleeve type bidirectional buffer car stopper work more stably, adapting to the use site with greater impact force, and showing good environmental adaptability and reliability.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a front view of a sliding sleeve type bidirectional buffer car arrester in a sliding sleeve type bidirectional buffer car arrester proposed in an embodiment of the utility model;

[0020] Figure 2 This is a left side view of a sliding sleeve type bidirectional buffer car arrester in a sliding sleeve type bidirectional buffer car arrester proposed in an embodiment of the utility model;

[0021] Figure 3 A top view of a sliding sleeve type bidirectional buffer car arrester in a sliding sleeve type bidirectional buffer car arrester proposed in an embodiment of the utility model;

[0022] Figure 4 A top view of the original state of a sliding sleeve type bidirectional buffer pawl mechanism in a sliding sleeve type bidirectional buffer car arrester proposed in an embodiment of the utility model;

[0023] Figure 5 A top view of a sliding sleeve type bidirectional buffer pawl mechanism in a sliding sleeve type bidirectional buffer car stopper proposed in an embodiment of the utility model in a buffering state of a vehicle on the right side;

[0024] Figure 6 This is a top view of the left-side oncoming vehicle buffering state of a sliding sleeve type bidirectional buffer pawl mechanism in a sliding sleeve type bidirectional buffer car stopper proposed in an embodiment of the utility model.

[0025] In the figure: 1-car arrester frame; 2-sleeve-type bidirectional buffer pawl mechanism; 2.1-pawl; 2.2-bearing seat; 2.2.1-one end of the bearing seat (left end of the bearing seat); 2.2.2-other end of the bearing seat (right end of the bearing seat); 2.3-blocking shaft; 2.3.1-annular step 1; 2.3.2-annular step 2; 2.4-buffer spring; 2.5-sleeve; 2.5.1-annular step 3; 2.6-locking nut assembly; 3-transmission connecting rod mechanism; 4-driving cylinder.

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0027] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0028] It should be noted that the terms "first" and "second" are only used for the purpose of distinguishing descriptions and position descriptions, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature limited to "first" or the like may explicitly or implicitly include one or more of the features; similarly, when the quantity of certain features is not limited in the form of words such as "two" or "three", it should be noted that the feature also explicitly or implicitly includes one or more of the features.

[0029] In the embodiments of the present invention, unless otherwise expressly specified or limited, terms such as "installation," "connection," and "fixation" should be understood in a broad sense; for example, they may refer to fixed connections, detachable connections, or integral molding; they may refer to mechanical connections, direct connections, welding, indirect connections through an intermediate medium, internal connections between two components, or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on the specification and drawings in combination with specific circumstances.

[0030] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0031] Sliding sleeve type bidirectional buffering car stopper: Bidirectional buffering and blocking vehicles. When vehicles approach from both directions, the left and right ends of the same set of springs are impacted and compressed, respectively, acting as a buffer to stop the vehicle. When the vehicle is traveling from right to left, the vehicle body hits the blocking pawl driving the blocking shaft, and the right end of the spring is impacted and compressed, acting as a buffer to stop the vehicle. When the vehicle is traveling from left to right, the vehicle body hits the blocking pawl driving the sliding sleeve, and the left end of the spring is impacted and compressed, acting as a buffer to stop the vehicle.

[0032] like Figures 1 to 6 As shown, a sliding sleeve type bidirectional buffer car arrester belongs to the car arrester for rail transportation.

[0033] The sliding sleeve bidirectional buffer car arrester comprises a car arrester frame 1, a sliding sleeve bidirectional buffer pawl mechanism 2, a transmission linkage 3, and a drive cylinder 4. Two sets of sliding sleeve bidirectional buffer pawl mechanisms 2 are symmetrically arranged around the center of the car arrester frame 1 and located outside the track. The drive cylinder 4 is located on either side of the sliding sleeve bidirectional buffer pawl mechanism 2. The transmission linkage 3 is located in the center of the car arrester frame 1 and connects the output of the drive cylinder 4 to the input of the pawl 2.1, enabling the drive cylinder 4 to control the pawl 2.1.

[0034] In the specific application of the present invention, the sliding sleeve-type bidirectional buffer pawl mechanism 2 is the core component of the vehicle blocker. Through the ingenious design of its internal sliding sleeve 2.5, pawl 2.1, bearing seat 2.2, and blocking shaft 2.3, it can achieve bidirectional buffering and blocking of vehicles. When a vehicle approaches the vehicle blocker, the oil cylinder 4 drives the pawl 2.1 through the transmission link mechanism 3 to automatically extend and retract according to the actual situation, preventing or allowing the vehicle to continue moving forward or backward, thereby achieving the purpose of controlling the vehicle.

[0035] The driving cylinder 4 generates thrust through hydraulic or pneumatic pressure, causing the pawl 2.1 to rotate about the axis of the blocking shaft 2.3, thereby controlling the extension and retraction of the pawl 2.1. The transmission connecting rod mechanism 3 serves to connect the driving cylinder 4 and the pawl 2.1. It can convert the linear motion generated by the driving cylinder 4 into the rotational motion required by the pawl 2.1, ensuring the precise movement of the pawl 2.1.

[0036] In one possible embodiment, the sliding sleeve-type bidirectional buffer pawl mechanism 2 includes a pawl 2.1, a bearing seat 2.2, a blocking shaft 2.3, a buffer spring 2.4, a sliding sleeve 2.5, and a locking nut assembly 2.6. The pawl 2.1, the left end 2.2.1 of the bearing seat, the buffer spring 2.4, and the sliding sleeve 2.5 are all located on the outer wall of the blocking shaft 2.3, the right end 2.2.2 of the bearing seat is located on the outer wall of the sliding sleeve 2.5, the pawl 2.1 is located in the center of the bearing seat 2.2, and the buffer spring 2.4, the sliding sleeve 2.5, and the locking nut assembly 2.6 are located on the same side as the other end 2.2.2 of the bearing seat.

[0037] In the specific application of the embodiment of the present utility model, the left part of the blocking shaft 2.3 and the center hole of the left end 2.2.1 of the bearing seat are clearance-fitted, and the annular step 1 2.3.1 limits the blocking shaft 2.3 to the left side of the left end 2.2.1 of the bearing seat; the center holes of the blocking claw 2.1 and the sliding sleeve 2.5 are clearance-fitted with the right part of the blocking shaft 2.3, and the blocking claw 2.1 is limited to the right side of the annular step 2.3.2; the left outer wall of the sliding sleeve 2.5 and the center hole of the right end 2.2.2 of the bearing seat are clearance-fitted, and the annular step 3 2.5.1 limits the sliding sleeve 2.5 to the right side of the right end 2.2.2 of the bearing seat; the buffer spring 2.4 is wound on the outer wall of the right part of the blocking shaft 2.3, and is located between the sliding sleeve 2.5 and the locking nut group 2.6. Its main function is to absorb the impact force of the vehicle through its own elastic deformation.

[0038] When a vehicle approaches from the right side of the vehicle blocker, the vehicle's wheel strikes and drives the blocking pawl 2.1 to the left. The annular step 2.3.2 forces the blocking shaft 2.3 and the locking nut assembly 2.6 to slide to the left. At this time, the right end of the buffer spring 2.4 is compressed to the left by the locking nut assembly 2.6, while the left end of the buffer spring 2.4 is restrained by the sliding sleeve 2.5 and the right end of the bearing seat 2.2.2 due to the annular step 3 2.5.1. At this time, the elastic deformation of the buffer spring 2.4 absorbs the impact force of the vehicle, playing a buffering role (see Figure 5 );

[0039] When a vehicle approaches from the left side of the vehicle blocker, the vehicle's wheel strikes and drives the blocking pawl 2.1 to slide to the right, thereby pushing the sliding sleeve 2.5 to slide to the right. At this time, the left end of the buffer spring 2.4 is compressed to the right by the sliding sleeve 2.5, while the right end of the buffer spring 2.4 is restrained by the blocking shaft 2.3 and the locking nut assembly 2.6 due to the annular step 2.3.1. At this time, the elastic deformation of the buffer spring 2.4 absorbs the impact force of the vehicle, playing a buffering role (see Figure 6 );

[0040] The embodiment of the utility model reduces the impact load of the vehicle on the device and extends the service life of the device through the above-mentioned working process and principle; the coaxial design reduces the vibration of the vehicle during the blocking process and improves the stability of the device operation.

[0041] During specific use, when the vehicle needs to pass through the car blocker position, the driving cylinder 4 is extended, driving the transmission link mechanism 3 to rotate, so that the blocking claw is opened and the vehicle passes freely; when the vehicle needs to stop at the car blocker position, the driving cylinder 4 is retracted, driving the transmission link mechanism 3 to rotate, so that the blocking claw is closed, buffering and preventing the vehicle from moving forward.

[0042] The buffering and stopping process of the sliding sleeve type bidirectional buffer car arrester is as follows: when the vehicle travels from right to left, the vehicle wheel generates a leftward pushing force on the pawl 2.1, the pawl 2.1 drives the blocking shaft 2.3 to slide to the left, the bearing seat 2.2 is fixed on the car arrester frame 1 and does not move, and the right end of the buffer spring 2.4 is squeezed by force to generate a reverse buffer force to stop the vehicle; when the vehicle travels from left to right, the vehicle wheel generates a rightward pushing force on the pawl 2.1, the pawl 2.1 pushes the sliding sleeve 2.5 to slide to the right, squeezing the left end of the buffer spring 2.4, the bearing seat 2.2 is fixed on the car arrester frame 1 and does not move, and the left end of the buffer spring 2.4 is squeezed by force to generate a reverse buffer force to stop the vehicle.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0045] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A sliding sleeve bidirectional buffer car arrester, characterized by: The sliding sleeve type bidirectional buffer car stopper comprises a car stopper frame (1), a sliding sleeve type bidirectional buffer pawl mechanism (2), a transmission connecting rod mechanism (3), and a driving oil cylinder (4); the driving oil cylinder (4) is arranged on one side of the sliding sleeve type bidirectional buffer pawl mechanism (2); The transmission connecting rod mechanism (3) is arranged at the center of the car arrester frame (1), and the sliding sleeve type bidirectional buffer pawl mechanism (2) is provided with two groups, which are symmetrical with the center of the car arrester frame (1) and are arranged outside the track.

2. The sliding sleeve bidirectional buffer car arrester according to claim 1, characterized in that: The sliding sleeve type bidirectional buffer pawl mechanism (2) comprises a pawl (2.1), a bearing seat (2.2), a blocking shaft (2.3), a buffer spring (2.4), a sliding sleeve (2.5) and a locking nut assembly (2.6); The blocking pawl (2.1), one end of the bearing seat (2.2.1), the buffer spring (2.4) and the sliding sleeve (2.5) are all arranged on the outer wall of the blocking shaft (2.3), the other end of the bearing seat (2.2.2) is arranged on the outer wall of the sliding sleeve (2.5), the blocking pawl (2.1) is arranged at the center of the bearing seat (2.2), and the buffer spring (2.4), the sliding sleeve (2.5) and the locking nut group (2.6) are arranged on the same side of the other end (2.2.2) of the bearing seat.

3. The sliding sleeve bidirectional buffer car arrester according to claim 2, characterized in that: An annular step 1 (2.3.1) and an annular step 2 (2.3.2) are provided on the outer wall of the blocking shaft (2.3).

4. The sliding sleeve bidirectional buffer car arrester according to claim 2, characterized in that: An annular step three (2.5.1) is provided on the outer wall of the sliding sleeve (2.5).

5. The sliding sleeve bidirectional buffer car arrester according to claim 4, characterized in that: The driving oil cylinder (4) is arranged inside the car arrester frame (1); the output end of the driving oil cylinder (4) is connected to and drives one end of the transmission connecting rod mechanism (3); and the other end of the transmission connecting rod mechanism (3) is connected to and drives the blocking claw (2.1).

6. The sliding sleeve bidirectional buffer car arrester according to claim 5, characterized in that: The sliding sleeve bidirectional buffer pawl mechanism (2) is arranged on the top of the car blocker frame (1); the pawl (2.1) is arranged on the top of the track in the car blocking state and rotates to the outside of the track in the release state.

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