Pulling type damping spring supporting rod mechanism
By designing the pull-type damping spring strut mechanism, the use of damping oil and adaptive motion structure, the unreliability problem caused by the lack of damping of the pneumatic strut is solved, achieving a longer service life and multi-purpose adaptability.
Patent Information
- Application Number
- CN202422564660.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The existing pneumatic struts lack damping devices, which leads to unreliable movement when the air pressure is too high and shortens the service life.
A pull-type damping spring strut mechanism is designed, including fixing parts, guides and resetting parts. The damping oil is used to reduce the impact force during resetting, and adaptive movement is achieved through threaded connections and ball head connections to meet different installation needs.
It reduces the impact force during reset, extends the service life of the strut, adapts to a variety of opening and closing actions, and improves reliability.
Smart Images

Figure CN223215665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of non-standard automation, in particular to a pull-type damping spring strut mechanism. Background Art
[0002] At present, most struts at home and abroad use gas sealing. Its main structure includes mounting parts on both sides, an internal air cavity and compressed air, and a sliding rod for telescopic movement.
[0003] In the prior art, pneumatic struts do not have a damping device. This makes the movement of the pneumatic struts very unreliable when the air pressure is too high, which greatly shortens the service life of the pneumatic struts. Therefore, the assembly structure between the extension rod and the guide sleeve in the prior art needs to be further improved. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a pull-type damping spring strut mechanism, which can not only reduce the impact force during resetting, but also fill the market gap.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A tension-type damping spring strut mechanism is characterized by comprising a fixing member, a guide member, and a reset member;
[0007] The fixing parts are located on both side surfaces of the guide part. The fixing parts are divided into two installation forms: stud installation and straight strip installation to meet the installation requirements under different installation conditions;
[0008] The fixing parts are located on both side end faces of the guide part. The fixing parts are divided into two shapes to meet different installation requirements. The fixing end on the sleeve side can perform a small range of curved motion to increase the active area; the fixing end on the sliding rod side can perform a cycloidal motion and can adapt to the trajectory of the opening and closing curve.
[0009] The fixed end of the sleeve side is connected to the mounting base and the mounting base bracket by a ball head, and a retaining spring is attached inside to fix the ball head.
[0010] The fixed end on the sliding rod side and the mounting base bracket are fixed on the sliding rod through a threaded connection, and the straight mounting base is fixed on the mounting base bracket through a limit screw.
[0011] The reset member is a spring, and both sides of the spring are fixed by rings, one ring is installed on the rubber pad, and the other ring is installed on the sleeve end cover;
[0012] The internal cavity of the damping sleeve is filled with damping oil to reduce the instantaneous impact force caused by the tightening of the reset member.
[0013] The guide member is an external guide sleeve and a rubber pad fixed on the sliding rod.
[0014] The rubber pad is installed on the sliding rod and plays a guiding role in the damping sleeve cavity. The center of the rubber pad has a through hole. After installation, the air cavity is in a closed state, and the through hole allows air to pass through from the middle on the left and right.
[0015] A sleeve base is installed on one side of the damping sleeve, and the sleeve base is used to install the fixing base bracket and fix the guide sleeve; the mounting base on the other side is fixed on the sliding rod. After the sliding rod is driven to retract by the pre-tightening force of the spring, the sliding rod bracket contacts the guide sleeve to complete the positioning.
[0016] The lifting ring is installed on the sleeve end cover and the rubber pad and is used for connecting the reset piece.
[0017] The advantages of the present invention are as follows: an object that needs to be opened and closed is fixed through different forms of installation methods, and the sliding rod is driven to move in the guide sleeve through the threaded connection of the fixed end of the sliding rod side, and the rebound of the handle is prevented by the deadweight of the object; when closing, the tension of the spring becomes slow under the influence of the damping oil, thereby achieving a buffering effect, thereby increasing the service life of the handle; secondly, the base provided at the fixed end of the sliding rod side can swing and move in a plane, and the sleeve end cover is provided with a ball head. After the two are combined, the movable range of the handle can meet the usage requirements in most cases. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the assembly of the tension-type damping spring strut mechanism provided in this embodiment;
[0019] Figure 2 A schematic diagram of the installation and fixing portion provided in this embodiment;
[0020] Figure 3 This is a schematic diagram of the interior of the damping sleeve provided in this embodiment. DETAILED DESCRIPTION
[0021] Combine Figures 1 to 3 The pull-type damping spring strut mechanism of the utility model is further described.
[0022] A tension-type damping spring strut mechanism, characterized by: a sliding rod 1, a rubber pad 2, a damping sleeve 3, a guide sleeve 4, a sleeve end cover 5, a spring 6, a lifting eye bolt 201, a damping air chamber 301, a sliding rod bracket 401, a sliding rod base 402, a conical mounting hole 403, a positioning pin hole 404, a mounting base bracket 501, a mounting base 502, a C-shaped retaining ring 503, a lifting eye bolt 504, and a conical mounting hole 505.
[0023] The extended end of the sliding rod 1 passes through the central hole of the guide sleeve 4 and is threadedly connected to the sliding rod bracket 401. The sliding rod 1 is fixed to the rubber pad 2 inside the damping sleeve 3 through the eye bolt 201.
[0024] The rubber pad 2 is fixed to the sliding rod 1 by means of eye bolts 201 ; two leakage holes are evenly distributed on both sides of the rubber pad 2 .
[0025] The damping sleeve 3 has a damping air cavity 301 inside, the fixed end of the sleeve is sealed by the sleeve end cover 5, and the fixed end of the extension rod is sealed by the sliding rod 1 passing through the guide sleeve 4.
[0026] The guide sleeve 4 is fixed on the damping sleeve 3 through the tapered mounting hole 403 , and the internal cavity serves as the guide surface of the sliding rod 1 .
[0027] The eyebolt 504 is fixed to the sleeve end cover 5 by threaded connection.
[0028] The eye bolt 201 passes through the rubber pad 2 and is fixed on the sliding rod 1 .
[0029] The spring 6 is fixed to the eyebolt 201 and the eyebolt 504 through the fixing eyelets on both sides of the spring 6. After the spring 6 is fixed, the sleeve end cover 5 is fixed to the damping sleeve 3 through the tapered mounting hole 505.
[0030] The sliding rod bracket 401 is tightly connected to the sliding rod 1 through threads.
[0031] The brackets on both sides of the sliding rod base 402 are aligned with the center of the sliding rod bracket 401 through the positioning pin hole 404.
[0032] The mounting base bracket 501 is fixed on the sleeve end cover 5 through the tapered mounting holes 505 on both sides.
[0033] The mounting base 502 is connected to the mounting base bracket 501 at a ball head, and contains a C-shaped retaining spring 503 for positioning.
[0034] Unless otherwise specified, in this utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationships in this utility model are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.
[0035] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0036] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A tension-type damping spring strut mechanism, characterized by: Including fixing parts, guiding parts and resetting parts; The fixing parts are located on both side surfaces of the guide member and are divided into two shapes to meet different installation requirements; The guide member is an external guide sleeve; The reset member is installed between the lifting ring on the rubber pad and the lifting ring on the sleeve end cover; The inner cavity of the guide sleeve is filled with damping oil to reduce the instantaneous impact force caused by the tightening of the reset member.
2. The tension-type damping spring strut mechanism according to claim 1, wherein: The fixing parts are located on both side end faces of the guide part. The fixing parts are divided into two shapes to meet different installation requirements. The fixing end on the sleeve side can perform a small range of curved motion to increase the active area; the fixing end on the sliding rod side can perform a cycloidal motion and can adapt to the trajectory of the opening and closing curve.
3. The tension-type damping spring strut mechanism according to claim 2, wherein: The fixed end of the sleeve side is connected to the mounting base and the mounting base bracket by a ball head, and a retaining spring is attached inside to fix the ball head.
4. The tension-type damping spring strut mechanism according to claim 2, wherein: The fixed end on the sliding rod side and the mounting base bracket are fixed on the sliding rod through a threaded connection, and the straight mounting base is fixed on the mounting base bracket through a limit screw.
5. The tension-type damping spring strut mechanism according to claim 1, wherein: The guide member comprises an external guide sleeve and a rubber pad fixed on the sliding rod.
6. The tension-type damping spring strut mechanism according to claim 1, wherein: The rubber pad is installed on the sliding rod and plays a guiding role in the guide sleeve cavity.
7. The tension-type damping spring strut mechanism according to claim 1, wherein: Sleeve bases are provided at both ends of the guide sleeve for installing base brackets of fixing parts on both sides and fixing the guide sleeve.
8. The tension-type damping spring strut mechanism according to claim 1, wherein: The lifting ring is installed on the sleeve end cover and the rubber pad and is used for connecting the reset piece.