Adjustable clamping device
By designing an adjustable clamping device, the problem of fixing audio and video equipment during the process of increasing pressure on rail vehicles was solved, achieving stable fixing and multi-angle adaptation, thus improving the adaptability and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC QINGDAO SIFANG CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, rail vehicles cannot stably fix audio and video acquisition equipment during the process of increasing pressure, which poses a safety hazard and cannot adapt to the length and angle requirements of different environments.
An adjustable clamping device was designed, including a telescopic rod, a fixing clip, and an adjusting shaft. By adjusting the length and angle of the telescopic rod, combined with the clamping device, stable fixation and multi-angle adaptation of audio and video equipment can be achieved.
This technology enables stable mounting of audio and video equipment on rail vehicles, adapting to different length and angle requirements in various environments, and improving the adaptability and safety of the device.
Smart Images

Figure CN224261410U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rail vehicle maintenance and testing devices, specifically, it relates to an adjustable clamping device. Background Technology
[0002] Rail vehicle manufacturers, depots, and other production and operation units inevitably perform vehicle maintenance and testing, which includes the collection of audio and video data during the voltage increase process. For safety reasons, personnel are not permitted to work with the power on after the voltage is increased, necessitating a suitable fixture to secure the audio and video acquisition equipment in a suitable location.
[0003] In view of this, this utility model is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an adjustable clamping device that can stably fix and clamp other equipment, and can adjust the length and angle to adapt to different environmental needs so that the clamped other equipment is in a suitable position.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] An adjustable clamping device includes a telescopic rod, a fixing clip, and an adjusting shaft. The telescopic rod is connected to the fixing clip, and one end of the adjusting shaft is rotatably connected to the fixing clip and can adjust the overall placement angle of the fixing clip and the telescopic rod.
[0007] Furthermore, the telescopic rod can be detachably connected to the fixing clip, and the adjusting shaft can adjust the placement angle of the fixing clip and the telescopic rod as a whole along the axial direction of the telescopic rod.
[0008] Furthermore, the telescopic rod is equipped with a clamping device.
[0009] Furthermore, the fixing clip is provided with a movable connecting device and a first fastening connecting device, which are arranged along the axial direction of the telescopic rod. The telescopic rod is located in the movable connecting device and the first fastening connecting device, and is clamped by at least the first fastening connecting device.
[0010] Furthermore, the fixing clip is equipped with a second fastening connection device, and one end of the adjusting shaft is connected to the fixing clip, with the connection point of the two and the second fastening connection device arranged along the axial direction of the telescopic rod.
[0011] Furthermore, the adjusting shaft can adjust its length, and the length adjustment can change the placement angle of the fixing clip and telescopic rod as a whole around the axis of the second fastening connection device.
[0012] Furthermore, the other end of the adjusting shaft is a connecting end, and the middle of the adjusting shaft is a length adjustment mechanism.
[0013] Furthermore, the middle part of the adjusting shaft is a length adjusting mechanism, including an upper adjusting screw, a lower adjusting screw, and an adjusting sleeve that is threadedly connected to both of them.
[0014] Furthermore, the telescopic rod includes two or more sections of rod that are sleeved together, with adjacent sections locked by a rotating bushing.
[0015] Furthermore, an adjustable clamping device also includes an electric drive unit that drives the rotating bushing and adjusting threaded sleeve to rotate.
[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.
[0017] This utility model discloses an adjustable clamping device, including a telescopic rod, a fixing clip, and an adjusting shaft. The telescopic rod is connected to the fixing clip, and one end of the adjusting shaft is rotatably connected to the fixing clip, allowing adjustment of the overall placement angle of the fixing clip and the telescopic rod. Clamping devices are provided at the head or other parts of the telescopic rod to hold other equipment. The length of the telescopic rod can be adjusted to meet different length requirements. Furthermore, the circumferential angle of the telescopic rod can be adjusted before connecting and fixing it to the fixing clip. The movable connection of the adjusting shaft allows adjustment of the overall placement angle of the fixing clip and the telescopic rod along the axial angle of the telescopic rod, thus enabling the telescopic rod to meet multi-angle and multi-directional adjustment needs, placing the other equipment clamped by the telescopic rod in a suitable position, and improving the overall adaptability of the device.
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0019] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of an adjustable clamping device according to the present invention;
[0021] Figure 2 This is a schematic diagram of the telescopic rod of an adjustable clamping device according to this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the fixing clip of the adjustable clamping device of this utility model;
[0023] Figure 4This is a schematic diagram of the structure of the adjusting shaft of an adjustable clamping device according to this utility model.
[0024] In the diagram: 1. Telescopic rod; 2. Fixing clip; 3. Adjusting shaft; 4. Rotating bushing; 5. Clamping device; 6. Movable connecting device; 7. First fastening connecting device; 8. Second fastening connecting device; 9. Support frame; 10. Upper adjusting screw; 11. Lower adjusting screw; 12. Adjusting threaded sleeve; 13. Support plate; 14. Connecting lug; 15. Rotating shaft.
[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Combination Figures 1 to 4 As shown, this utility model discloses an adjustable clamping device, which includes a telescopic rod, a fixing clip, and an adjusting shaft.
[0030] The telescopic rod comprises two or more sections that are sleeved together, with adjacent sections locked by a rotating bushing. In this embodiment, as shown... Figure 1 , 2As shown, a two-section rod structure is adopted, with a rotating bushing located at the end of the outer rod. When the rotating bushing is loosened, the two rod sections can move relative to each other; when the rotating bushing is tightened, the two rod sections are locked and cannot move relative to each other. This allows for length adjustment of the telescopic rod and can be locked at any position to fix the length.
[0031] The telescopic rod has a clamping device on its smaller diameter section for holding audio or video recording equipment. The smaller diameter section of the telescopic rod can extend and retract, thereby moving the clamping device to a suitable position. In this embodiment, the clamping device is a non-slip clamp, which has a simple structure, effectively achieves the desired purpose, and is low in cost.
[0032] like Figure 1 As shown, the telescopic rod is detachably connected to the fixing clip.
[0033] like Figure 3 As shown, the fixing clip includes a T-shaped support frame, a movable connecting device, a first fastening connecting device, and a second fastening connecting device. The movable connecting device and the first fastening connecting device are arranged on one side of the support frame, and are aligned along the axial direction of the telescopic rod. The telescopic rod is located within the movable connecting device and the first fastening connecting device, and is clamped by at least the first fastening connecting device.
[0034] A second fastening connection device is provided on the other side of the support frame. In this embodiment, two second fastening connection devices are included, and the axial connection line of the two second fastening connection devices, the axial connection line of the movable connection device and the first fastening connection device corresponds to the T-shaped shape of the T-shaped support frame.
[0035] In this embodiment, the movable connecting device is a fixed cylinder with unobstructed axial ends. Both the first and second fastening connecting devices have rings whose tightness can be adjusted by a handle.
[0036] The fixed cylinder and the ring of the first fastening connection device are arranged coaxially. After the telescopic rod extends into the fixed cylinder and the ring of the first fastening connection device, it is fastened to the fixed clip by the ring of the first fastening connection device. Furthermore, the fixed cylinder does not restrict the axial direction of the telescopic rod. Therefore, after the telescopic rod is fixed to the first fastening connection device, when it is necessary to adjust the length of the telescopic rod, the rotating bushing can be loosened, the small diameter rod of the telescopic rod can be moved axially, and then the rotating bushing can be tightened.
[0037] Two second fastening connection devices are arranged coaxially to secure the fixing clips to the rod-shaped device on the top of the rail vehicle, such as connecting to the rail vehicle guardrail and securing it firmly.
[0038] Combination Figure 1 , 4 As shown, the adjusting shaft includes an adjusting sleeve, an upper adjusting screw, a lower adjusting screw, a rotating shaft, a connecting lug, and a support plate.
[0039] One end of the adjusting shaft is rotatably connected to the fixing clip and can adjust the placement angle of the fixing clip and the telescopic rod along the axial direction of the telescopic rod. The other end of the adjusting shaft is a connecting end, used to support or connect to components of the rail vehicle, thereby supporting the adjusting shaft. The middle of the adjusting shaft is a length adjustment mechanism.
[0040] The middle part of the adjusting shaft is a length adjustment mechanism, including an upper adjusting screw, a lower adjusting screw, and an adjusting sleeve threadedly connected to both. The adjusting sleeve is used in conjunction with the upper and lower adjusting screws. One of the upper adjusting screws is a clockwise screw, and the other is a counterclockwise screw. When the adjusting sleeve rotates clockwise or counterclockwise, the length of the adjusting shaft is extended or shortened.
[0041] One end of the adjusting shaft is connected to the fixing clip. Specifically, one end of the upper adjusting screw is connected to a rotating shaft perpendicular to it. The two ends of the rotating shaft are respectively inserted into the holes of two connecting lugs and can rotate relative to each other. The two connecting lugs are welded or connected to the support frame of the fixing clip in other ways.
[0042] The connection point between the adjusting shaft and the fixing clip, along with the arrangement of the second fastening connection device, is along the axial direction of the telescopic rod. In this embodiment, since there are two second fastening connection devices, these two devices are considered as a whole, and the connection point of this whole with the adjusting shaft and the fixing clip is arranged along the axial direction of the telescopic rod. The adjusting shaft can be adjusted in length, and since one end of the adjusting shaft is rotatably connected to the fixing clip, the adjusting shaft can change the placement angle of the fixing clip and the telescopic rod as a whole around the axial direction of the second fastening connection device by adjusting its length.
[0043] like Figure 1 , 4 As shown, in this embodiment, the other end of the adjusting shaft is a support plate, which is connected to the lower adjusting screw described below and is secured to the vehicle guardrail to provide support. In other embodiments, the connecting end of the other end of the adjusting shaft can also be other connecting devices, such as the same device as the second fastening connecting device, as long as it can achieve the supporting function. Furthermore, this structure can also achieve the connection purpose and prevent detachment.
[0044] In other embodiments, for ease of operation and safety, an adjustable clamping device further includes an electric drive device that drives the rotating bushing and adjusting threaded sleeve to rotate.
[0045] This utility model discloses an adjustable clamping device, including a telescopic rod, a fixing clip, and an adjusting shaft. The telescopic rod is connected to the fixing clip, and one end of the adjusting shaft is rotatably connected to the fixing clip, allowing adjustment of the overall placement angle of the fixing clip and the telescopic rod. The telescopic rod's length can be adjusted to accommodate different length requirements, and its circumferential angle can be adjusted before connecting to the fixing clip. The adjusting shaft's movable connection allows adjustment of the overall placement angle of the fixing clip and the telescopic rod along the axial direction of the telescopic rod, thus enabling the telescopic rod to meet multi-angle and multi-directional adjustment needs and improving the overall adaptability of the device.
[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An adjustable clamping device, characterized in that: It includes a telescopic rod, a fixing clip, and an adjusting shaft. The telescopic rod is connected to the fixing clip, and one end of the adjusting shaft is rotatably connected to the fixing clip and can adjust the overall placement angle of the fixing clip and the telescopic rod.
2. The adjustable clamping device according to claim 1, characterized in that: The telescopic rod can be detachably connected to the fixing clip, and the adjusting shaft can adjust the placement angle of the fixing clip and the telescopic rod as a whole along the axial direction of the telescopic rod.
3. The adjustable clamping device according to claim 2, characterized in that: The telescopic rod is equipped with a clamping device.
4. An adjustable clamping device according to claim 2 or 3, characterized in that: The fixed clip is provided with a movable connecting device and a first fastening connecting device, which are arranged along the axial direction of the telescopic rod. The telescopic rod is located in the movable connecting device and the first fastening connecting device, and is clamped by at least the first fastening connecting device.
5. An adjustable clamping device according to claim 4, characterized in that: The fixing clip is equipped with a second fastening connection device. One end of the adjusting shaft is connected to the fixing clip, and the connection point between the two and the second fastening connection device are arranged along the axial direction of the telescopic rod.
6. An adjustable clamping device according to claim 5, characterized in that: The adjusting shaft can adjust its length, and by adjusting the length, the placement angle of the fixing clip and telescopic rod as a whole around the axis of the second fastening connection device can be changed.
7. An adjustable clamping device according to claim 6, characterized in that: The other end of the adjusting shaft is the connecting end, and the middle of the adjusting shaft is the length adjustment mechanism.
8. An adjustable clamping device according to claim 7, characterized in that: The middle part of the adjusting shaft is a length adjusting mechanism, which includes an upper adjusting screw, a lower adjusting screw, and an adjusting sleeve that is threadedly connected to both of them.
9. An adjustable clamping device according to claim 8, characterized in that: The telescopic rod consists of two or more sections that are connected together, with adjacent sections locked by a rotating bushing.
10. An adjustable clamping device according to claim 9, characterized in that: It also includes an electric drive unit, which drives the rotating bushing and adjusting threaded sleeve to rotate.