Tool for rapidly overturning rubber pad rigidity experiment tool

Abstract

The utility model relates to the technical field of rubber pad rigidity experiments, and discloses a tool for quickly overturning a rubber pad rigidity experiment tool, which comprises two fixing plates, two overturning pins and a plurality of bolts, the fixing plate is of a centrosymmetric structure, the center of the fixing plate is provided with a first groove for installing the overturning pin, the fixing plate is also symmetrically provided with a plurality of second grooves, and the plurality of second grooves correspond to a plurality of gaps of the experiment tool; during use, the two fixing plates symmetrically abut against the left side face and the right side face of the experiment tool, the overturning pins are located on the outer sides, away from the experiment tool, of the fixing plates, and a single plug pin penetrates through the two opposite second grooves in the two fixing plates and the corresponding gaps of the two second grooves at the same time. The two groups of bolt fixing pieces are respectively mounted on the bolts and abut against the fixing plates on the outer sides of the two fixing plates so as to fix the experiment tool between the two fixing plates; according to the scheme, on the premise of not changing an original special experiment tool, the original hoisting function of experiment equipment is exploited and utilized, an external fixing and hoisting combined overturning mode is provided, and convenient and safe overturning of the tool is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber pad rigidity experiments, in particular to a tool for quickly flipping a rubber pad rigidity experiment tool. Background Art

[0002] The rigidity test for rubber pads used on railway freight cars primarily involves placing the test sample in a specialized fixture, securing it, and then moving it to the test equipment for testing. The test requires applying pressure to the sample in four directions using the test equipment, which requires frequent flipping of the fixture during the experiment.

[0003] Because the tooling used in this experiment is proprietary and requires no unauthorized modification, manual flipping is currently performed. While this method meets the existing tooling flipping requirements, the combined weight of the tooling and specimen, when assembled, is over 150 kg. Flipping requires the coordination of several personnel, making the process slow and dangerous, with low flipping efficiency and a high risk of safety incidents. Furthermore, due to the short time intervals between experiments in each direction, all personnel must wait at the test site for the flipping operation, which is time-consuming and labor-intensive, impacting overall experimental efficiency and safety. Utility Model Content

[0004] The utility model aims to provide a tool for quickly turning over a rubber pad rigidity test tool, so as to solve the technical problems of low efficiency and high safety risk of the existing manual turning operation.

[0005] The basic solution provided by the utility model is: a tool for quickly flipping a rubber pad rigidity test tool, wherein the test tool has a plurality of gaps on the side surfaces other than the left and right sides, and the tool includes two fixing plates, two flip pins and a plurality of latches;

[0006] The fixing plate is a centrally symmetrical structure; a first slot for mounting a flip pin is provided at the center of the fixing plate; a plurality of second slots are provided on the fixing plate, the plurality of second slots corresponding to the plurality of gaps being symmetrically distributed on the fixing plate;

[0007] When the two fixed plates are symmetrically abutted against the left and right sides of the experimental tooling, the flip pin is located on the outside of the fixed plates away from the experimental tooling, and the two opposite second grooves on the two fixed plates are aligned with the corresponding gaps, the two opposite second grooves and their corresponding gaps are used for allowing a single pin to pass through at the same time, and the two ends of the pin are symmetrically located on the outside of the two fixed plates away from the experimental tooling; each of the said pins is correspondingly provided with two sets of pin fixings, which are used to be installed on the pins and respectively press against the fixed plates on the outside of the two fixed plates away from the experimental tooling to fix the experimental tooling between the two fixed plates.

[0008] The working principle and advantages of this utility model are:

[0009] Compared with existing technologies, this solution exploits the existing hoisting function of the experimental equipment without changing the original dedicated experimental tooling, and proposes a method of external fixation combined with hoisting and flipping, which achieves convenient and safe flipping of the tooling. First, the tool structure is cleverly designed to match the external structure and gap structure of the dedicated experimental tooling. The dedicated experimental tooling is fixed by two fixing plates matched with pins in the gap structure. This does not affect the original dedicated experimental tooling itself or the installation of the specimen by the dedicated experimental tooling, ensuring the normal experiment of the specimen. It also has a simple structure, is easy to maintain, and is low in cost. Secondly, during the conventional testing of specimens, it is not necessary to use the lifting function of the experimental equipment. However, this solution makes use of the original lifting function of the experimental equipment. By using a sling to be placed in the grooves of the rotating pins on both sides, the lifting force of the experimental equipment itself can be used to lift the tooling and the specimen as a whole. The tooling body can be flipped by simply pushing the tooling. This makes it no longer necessary for multiple workers to manually flip the tooling weighing hundreds of pounds to flip the test direction. This reduces the number of on-site operators, saves human resources, and greatly improves the convenience, safety and experimental efficiency of the flipping operation.

[0010] The fixing plate of the tool, as well as the first and second grooves on the fixing plate, are arranged symmetrically, so that the tool as a whole has a symmetrical structure. Since it is necessary to conduct experiments in four directions on the specimen fixed by the tooling respectively, the setting of the symmetrical structure reduces the factors that affect the flipping stability during the flipping process in the four directions, thereby improving the stability and safety of the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a tool for quickly flipping a rubber pad rigidity test tool provided by an embodiment of the present utility model;

[0012] Figure 2 A front view of a tool for quickly flipping a rubber pad rigidity test tool provided by an embodiment of the present utility model;

[0013] Figure 3 A schematic diagram of the installation of a fixing plate and a rotating pin of a tool for quickly flipping a rubber pad rigidity test tool provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The following is a further detailed description through specific implementation methods:

[0015] The symbols in the drawings of the specification include: fixed plate 1, rotating pin 2, and latch pin 3.

[0016] The embodiment is basically as shown in the attached Figure 1 and Figure 2Shown is a tool for quickly flipping a rubber mat rigidity test fixture, comprising two fixing plates. The fixing plates are centrally symmetrical, and in this embodiment, are square. They mate with the outer surfaces of the test fixture to effectively clamp the two fixing plates. The size and weight of the fixing plates are selected to suit the test fixture, ensuring effective clamping and a reasonable weight.

[0017] like Figure 3 As shown, a first slot is opened in the center of the fixed plate, through which one fixed plate is correspondingly installed with one flip pin; in this embodiment, the first slot is a cylindrical slot adapted to the rotating pin, and the diameter of the rotating pin is 28-33 mm 2 , preferably 30mm 2 , the length is 100-110mm, preferably 108mm, and non-brittle steel is used to ensure that the rotating pin has sufficient bearing capacity.

[0018] The fixing plate is symmetrically provided with a plurality of second slots for installing a plurality of latches. In this embodiment, there are four second slots, which are respectively opened at the four corners of the square structure of the fixing plate. The second slots are rectangular slots, and the latch is a rectangular structure adapted to the second slots, with a length of more than 258 mm, optionally 258-300 mm, a width of 34-35 mm, and a thickness of 9-10 mm, to ensure that the latch can be easily inserted into the second slot when in use.

[0019] In other embodiments, the fixing plate is symmetrically provided with a third groove for reducing weight. The position, shape and weight of the third groove are set accordingly according to actual needs.

[0020] Specifically, when in use, the two fixing plates are symmetrically abutted against the left and right sides of the experimental tooling, the flip pin is located on the outside of the fixing plate away from the experimental tooling, and the two opposite second grooves on the two fixing plates are aligned with the corresponding gaps. In this embodiment, there are four groups of two opposite second grooves and their corresponding gaps, which correspond one to one with the four latches. A single latch passes through the two opposite second grooves and their corresponding gaps at the same time. At this time, the two ends of the latch are symmetrically located on the outside of the two fixing plates away from the experimental tooling, keeping the tool as a whole symmetrically installed on the outside of the tooling, and the distance between the end of the latch and the adjacent fixing plate is not greater than the length of the rotating pin, and the distance between the end of the latch and the adjacent fixing plate is adapted to the rotating pin. Reasonable selection of the distance facilitates the installation of the latch and the rotating pin; two groups of latch fixings are correspondingly set for each latch, and the latch fixings are adapted to the latch, and are respectively installed on the latch and pressed against the fixing plate on the outside of the two fixing plates away from the experimental tooling to fix the experimental tooling between the two fixed plates. The sling of the experimental equipment can be fixed according to the lifting capacity of the equipment. The sling is inserted into the groove of the rotating pin. The lifting force of the experimental equipment itself is used to lift the tooling and the specimen as a whole. The tooling is gently pushed to flip the tooling body into place to meet the needs of this experiment. Then the tooling is hoisted and lowered to the experimental station for the experiment. After the experiment is completed, the above lifting, flipping and lowering process is carried out.

[0021] This embodiment provides a tool for quickly flipping a rubber pad rigidity test fixture. Without changing the original dedicated test fixture, this solution exploits the original hoisting function of the experimental equipment and proposes a method of external fixation combined with hoisting flipping, thereby achieving convenient and safe flipping of the fixture. First, the tool structure is cleverly designed by making use of the outer structure and gap structure of the dedicated test fixture to match the tool structure. The dedicated test fixture is fixed by two fixing plates matched with pins in the gap structure. This does not affect the original dedicated test fixture itself or the installation of the specimen by the dedicated test fixture, thus ensuring normal testing of the specimen. The structure is simple, easy to maintain, and low in cost. Secondly, during the conventional testing of specimens, it is not necessary to use the lifting function of the experimental equipment. However, this solution makes use of the original lifting function of the experimental equipment. By using a sling to be placed in the grooves of the rotating pins on both sides, the lifting force of the experimental equipment itself can be used to lift the tooling and the specimen as a whole. The tooling body can be flipped by simply pushing the tooling. This makes it no longer necessary for multiple workers to manually flip the tooling weighing hundreds of pounds to flip the test direction. This reduces the number of on-site operators, saves human resources, and greatly improves the convenience, safety and experimental efficiency of the flipping operation.

[0022] The fixing plate of the tool, as well as the first and second grooves on the fixing plate, are arranged symmetrically, so that the tool as a whole has a symmetrical structure. Since it is necessary to conduct experiments in four directions on the specimen fixed by the tooling respectively, the setting of the symmetrical structure reduces the factors that affect the flipping stability during the flipping process in the four directions, thereby improving the stability and safety of the flipping process.

[0023] The above description is merely an embodiment of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. A person of ordinary skill in the art is aware of all common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, is able to obtain all existing technologies in the field, and has the ability to apply conventional experimental means before that date. A person of ordinary skill in the art can, under the guidance of this application, improve and implement the present scheme in combination with his or her own abilities. Some typical known structures or methods should not become an obstacle for a person of ordinary skill in the art to implement the present application. It should be pointed out that a person of ordinary skill in the art can make several variations and improvements without departing from the structure of the present invention. These should also be considered as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A tool for quickly flipping a rubber mat rigidity test fixture, wherein the test fixture has a plurality of gaps on the side other than the left and right sides, characterized in that: The tool includes two fixing plates, two flip pins and a number of latches; The fixing plate is a centrally symmetrical structure; a first slot for mounting a flip pin is provided at the center of the fixing plate; a plurality of second slots are provided on the fixing plate, the plurality of second slots corresponding to the plurality of gaps being symmetrically distributed on the fixing plate; When the two fixed plates are symmetrically abutted against the left and right sides of the experimental tooling, the flip pin is located on the outside of the fixed plates away from the experimental tooling, and the two opposite second grooves on the two fixed plates are aligned with the corresponding gaps, the two opposite second grooves and their corresponding gaps are used for allowing a single pin to pass through at the same time, and the two ends of the pin are symmetrically located on the outside of the two fixed plates away from the experimental tooling; each of the said pins is correspondingly provided with two sets of pin fixings, which are used to be installed on the pins and respectively abut the corresponding fixed plates on the outside of the two fixed plates away from the experimental tooling to fix the experimental tooling between the two fixed plates.

2. A tool for quick flipping of a rubber pad rigidity test tool according to claim 1, characterized in that: The fixing plate is a square structure.

3. A tool for quick flipping of a rubber pad rigidity test tool according to claim 2, characterized in that: There are four second slots, which are respectively opened at the four corners of the square structure of the fixing plate.

4. The tool for quick flipping of a rubber pad rigidity test tool according to claim 1, characterized in that: The second groove is a rectangular groove.

5. The tool for quick flipping of a rubber pad rigidity test tool according to claim 4, characterized in that: The latch is a rectangular structure adapted to the second slot, with a length of not less than 258 mm, a width of 34-35 mm, and a thickness of 9-10 mm.

6. The tool for quick flipping of a rubber pad rigidity test tool according to claim 1, characterized in that: The first groove is a columnar groove.

7. The tool for quick flipping of a rubber pad rigidity test tool according to claim 6, characterized in that: The rotating pin has a diameter of 28-33 mm2 and a length of 100-110 mm.

8. The tool for quick flipping of a rubber pad rigidity test tool according to claim 1, characterized in that: When the two ends of the latch are symmetrically located on the outer sides of the two fixing plates away from the experimental tooling, the distance between the end of the latch and the adjacent fixing plates is no greater than the length of the rotating pin.

9. The tool for quick flipping of a rubber pad rigidity test tool according to claim 1, characterized in that: The fixing plate is symmetrically provided with a third groove for reducing weight.

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