Track trolley timing fixing frame fixing device
By using a combination of butterfly bolts, arc springs, C-shaped metal sheets and wear-resistant gaskets in the fixing device of the dot timer, the problem of poor fixing effect of the timer in the prior art is solved, and a more stable Fixed and longer service life.
Patent Information
- Application Number
- CN202322433754.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-09-07
AI Technical Summary
When the existing dot timer is installed with the fixing frame, the screws are too short to effectively fix the timer, resulting in poor fixing effect and easy slipping.
A track car timing fixing frame fixture device is designed, using a combination of butterfly bolts, arc springs, C-shaped metal sheets and wear-resistant gaskets. The butterfly bolts are rotated to generate elastic compression timer to increase the fixed area , improve the fixing effect.
It achieves better fixation effect, is easy to operate, reduces the vibration of the timer, and extends the service life of the device.
Smart Images
Figure CN222462226U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fixing device for a timing fixing frame of a track trolley, belonging to the technical field of educational equipment. Background Art
[0002] In high school physics laboratories, dotted timers are one of the most common tools. They are widely used in experiments to measure the movement time, speed, and acceleration of objects. Usually, dotted timers are used to record the time between two fixed points and calculate the corresponding physical quantities based on these times. For example, by measuring the time intervals between different heights when an object falls freely, the acceleration or gravitational acceleration of the object can be calculated. Dotted timers play an important role in high school physics experiment teaching, effectively helping students observe and analyze the movement characteristics of objects.
[0003] At present, the dot timer is usually used in conjunction with a track, a trolley and a fixed frame, wherein the fixed frame is used to install the dot timer, the track is installed at one end of the fixed frame, the trolley is set on the track, and then the trolley drives the paper tape that cooperates with the dot timer to perform corresponding tests.
[0004] However, when the dotting timer is installed on the fixing bracket, the screws set on the side of the fixing bracket and used to fix the dotting timer are too short and cannot reach the edge of the timer. It is necessary to add pads for fixing. Not only is the fixing troublesome, but the fixing effect is poor and it is easy to slip. Therefore, improvement is urgently needed. Utility Model Content
[0005] In order to overcome the shortcomings of the existing timers, such as poor installation and fixing effect and easy slipping, the utility model designs a track trolley timing fixing frame fixing device, which has good fixing effect and is easy to operate.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A device for fixing a timing fixed frame of a rail trolley comprises a fixed frame body, a rail body is installed at one end of the fixed frame body, and a fixing plate extending upward is fixed at the other end. A timer is also installed in the fixed frame body, and an arc-shaped spring sheet is fitted on one side of the timer close to the fixing plate. A butterfly bolt is threadedly penetrated through the outer side of the fixing plate, and the end of the butterfly bolt is arranged to support the arc-shaped spring sheet.
[0008] Furthermore, a C-shaped metal sheet is fixed to the end of the arc-shaped spring sheet close to the fixing plate, and the end of the butterfly bolt passes through the C-shaped metal sheet and then supports the end of the arc-shaped spring sheet.
[0009] Furthermore, a wear-resistant gasket is provided between the C-shaped metal sheet and the arc-shaped spring sheet, and the end of the butterfly bolt is fixedly connected to the wear-resistant gasket.
[0010] Furthermore, the fixing plate is provided with screw holes or nuts at the locations where the butterfly bolts penetrate.
[0011] Compared with the prior art, the utility model has the following characteristics and beneficial effects:
[0012] The utility model provides a butterfly bolt, which is convenient for users to rotate and improves the clamping efficiency. At the same time, the C-shaped metal sheet and the wear-resistant gasket are provided, which can facilitate the butterfly bolt to stably squeeze the top of the arc spring sheet to prevent deviation and prevent the butterfly bolt from being worn, thereby increasing the service life of the device. In addition, the arrangement of the arc spring sheet increases the area of the clamping timer, thereby achieving a better clamping effect and reducing the vibration of the timer. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an installation schematic diagram of the utility model.
[0014] The accompanying drawings are marked as follows: 1. fixing frame body; 2. timer; 3. fixing plate; 4. butterfly bolt; 5. C-shaped metal sheet; 6. wear-resistant gasket; 7. arc-shaped spring sheet; 8. track body. DETAILED DESCRIPTION
[0015] The present invention will be described in more detail below in conjunction with the embodiments.
[0016] like Figure 1 As shown, the rail trolley timing fixing frame fixing device of this embodiment includes a fixing frame body 1, a rail body 8 is installed at one end of the fixing frame body 1, and a fixing plate 3 extending upward is fixed at the other end. A timer 2 is also installed in the fixing frame body 1, and an arc-shaped spring piece 7 is fitted on one side of the timer 2 close to the fixing plate 3. A butterfly bolt 4 is threaded through the outer side of the fixing plate 3, and the end of the butterfly bolt 4 is arranged to support the arc-shaped spring piece 7.
[0017] In this embodiment, the arc-shaped spring piece 7 is processed by a stamping process. Its characteristics are that it is easy to bend only in one direction, that is, the minimum stiffness plane, and has large tensile stiffness and bending stiffness in the other direction, which can play the role of energy storage, shock absorption and compression;
[0018] The arc width of the arc-shaped spring piece 7 is 6-8 cm, the width is 1.0-1.5 cm, and the thickness is 1.5 mm.
[0019] Furthermore, a C-shaped metal sheet 5 is fixed to the end of the arc-shaped spring sheet 7 close to the fixed plate 3, and the end of the butterfly bolt 4 passes through the C-shaped metal sheet 5 and supports the end of the arc-shaped spring sheet 7; a wear-resistant gasket 6 is arranged between the C-shaped metal sheet 5 and the arc-shaped spring sheet 7, and the end of the butterfly bolt 4 is fixedly connected to the wear-resistant gasket 6.
[0020] In this embodiment, a circular hole larger than the butterfly bolt 4 is provided in the middle of the C-shaped metal sheet 5. The butterfly bolt 4 first passes through the fixing plate 3 and then passes through the circular hole in the middle of the C-shaped metal sheet 5. Then, a circular wear-resistant gasket 6 is welded to the end of the butterfly bolt 4, and then the C-shaped metal sheet 5 is welded to the top of the arc-shaped spring sheet 7; wherein, the diameter of the wear-resistant gasket 6 is larger than the diameter of the circular hole in the middle of the C-shaped metal sheet 5.
[0021] Furthermore, the fixing plate 3 is provided with a screw hole or a nut at the position where the butterfly bolt 4 passes through.
[0022] Specifically, if the material of the fixing plate 3 is iron alloy, screw holes are provided, and if the material of the fixing plate 3 is plastic, nuts are embedded.
[0023] The working principle of the utility model is as follows: when the timer 2 needs to be fixed, the butterfly bolt 4 is rotated, and the end point of the butterfly bolt 4 can press against the top point of the arc-shaped spring sheet 7 to change its curvature and thus generate elastic force to press the timer 2 tightly.
[0024] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
Claims
1. A device for fixing a timing fixed frame of a track trolley, comprising a fixed frame body (1), a track body (8) being mounted on one end of the fixed frame body (1), and a fixing plate (3) extending upward being fixed on the other end, and a timer (2) being mounted in the fixed frame body (1), characterized in that: An arc-shaped spring sheet (7) is provided on one side of the timer (2) close to the fixing plate (3), and a butterfly bolt (4) is provided through the thread on the outer side of the fixing plate (3), and the end of the butterfly bolt (4) is arranged to support the arc-shaped spring sheet (7).
2. A rail trolley timing fixing frame fixing device according to claim 1, characterized in that: A C-shaped metal sheet (5) is fixed to the end of the arc-shaped spring sheet (7) close to the fixing plate (3), and the end of the butterfly bolt (4) passes through the C-shaped metal sheet (5) and then presses against the end of the arc-shaped spring sheet (7).
3. A rail trolley timing fixing frame fixing device according to claim 2, characterized in that: A wear-resistant gasket (6) is provided between the C-shaped metal sheet (5) and the arc-shaped spring sheet (7), and the end of the butterfly bolt (4) is fixedly connected to the wear-resistant gasket (6).
4. A rail trolley timing fixing frame fixing device according to claim 1, characterized in that: The fixing plate (3) is provided with a screw hole or a nut at the position where the butterfly bolt (4) passes through.