Novel plane seal
By setting an integrated arc-shaped spring structure as support at the bottom of the flat seal, the problem of decreased elasticity of the rubber support structure is solved, achieving a longer service life and lower production costs.
Patent Information
- Application Number
- CN202422992741.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The elastic performance of the rubber support structure of the existing flat seal decreases after long-term use, resulting in poor support effect and shortening the service life.
An integrated spring structure is used as support, and arc-shaped springs are provided around the bottom of the seal body to support the seal body and bend upward and retract into the opening when subjected to force, and remain suspended after resetting.
The service life of the seal is extended, the production process is simplified and the cost is reduced.
Smart Images

Figure CN223478603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of planar seal technology, and in particular to a novel planar seal. Background Technology
[0002] In existing letterpress stamps, each character on the letterplate needs to be stamped for inspection after assembly to check for any errors. During inspection, the letterplate is typically fixed to the bottom of the flat stamp, and then pressed directly for quick stamping. After stamping, to prevent the inked rubber characters on the letterplate from directly contacting the table surface and causing contamination, existing flat stamps have conical rubber supports around their bottom, keeping the bottom of the stamp suspended. When in use, pressing the stamp causes the rubber supports to retract upwards, ensuring the characters contact the paper. However, these rubber supports age over time, losing elasticity and failing to return to their original position after retraction, thus affecting the support effect. Therefore, those skilled in the art need to improve the support structure of the flat stamp to address these issues. Utility Model Content
[0003] To address the aforementioned problems, this utility model discloses a novel flat seal that employs an integrated spring-loaded structure as support, thus solving the problem of low service life and reduced support effectiveness of the rubber support structure at the bottom of existing flat seals.
[0004] The specific technical solution is as follows:
[0005] A novel flat stamp includes a stamp body with a flat, plate-like structure. The left and right edges of the stamp body are both curved upwards to form curved portions, and the upper ends of the two curved portions are horizontally bent outwards to form folded plate portions. The bottom of the stamp body is provided with elastic spring pieces around its perimeter. An opening is formed on the surface of the stamp body at the position of each spring piece. One end of each spring piece is integrally connected to the end of the opening, and the spring pieces are all curved upwards in an arc shape to support the stamp body.
[0006] Furthermore, each of the folded plate sections has a raised strip at its bottom.
[0007] Furthermore, the upper surface of the seal body is provided with grid-like grooves.
[0008] Furthermore, the number of the spring pieces is four, and they are arranged symmetrically in pairs.
[0009] Furthermore, both ends of the curved portion are provided with raised reinforcing ribs, and the bottom of the reinforcing ribs is flush with the bottom of the stamp.
[0010] Furthermore, the seal body is made of transparent plastic in one piece.
[0011] The beneficial effects of this utility model are reflected in:
[0012] This invention features an integrally formed spring sheet around the bottom of the stamp body. The spring sheet is curved in an arc shape and supports the stamp body, keeping the bottom of the stamp body suspended. Compared with traditional rubber support parts, it has a longer service life, a simpler manufacturing process, and reduces costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the flat seal of this utility model.
[0014] Figure 2 This is a schematic diagram of the bottom structure of the flat seal in this utility model.
[0015] Explanation of reference numerals in the attached drawings: 1. Stamp body; 2. Bending part; 3. Folded plate part; 31. Raised strip; 4. Opening; 5. Spring piece; 6. Groove; 7. Reinforcing rib. Detailed Implementation
[0016] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model falls within the protection scope of this utility model. The fixed connections and fixed settings mentioned in this utility model are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.
[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying 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.
[0018] Please see the appendix Figure 1-2This embodiment provides a novel flat stamp, including a stamp body 1. The stamp body 1 is made of transparent plastic in one piece. The stamp body has a flat plate structure. The left and right edges of the stamp body 1 are both curved upward to form curved parts 2. The upper center of each of the two curved parts 2 is horizontally bent outward to form a folded plate part 3. There are four elastic spring pieces 5 on the bottom of the stamp body 1, which are arranged symmetrically in pairs. An opening 4 is formed on the surface of the stamp body 1 at the position of each spring piece 5. The size of the opening 4 corresponds to the size of the spring piece 5. One end of the spring piece 5 is integrally connected to one end of the opening 4. The spring pieces 5 are all curved upward in an arc shape to support the stamp body 1. When subjected to force, the spring piece 5 bends upward and is stored in the opening 4.
[0019] In this embodiment, the bottom of each folding plate 3 is provided with a raised strip 31, so that when the flat stamp is grasped by the folding plate 3 on both sides, the raised strip 31 can play a certain anti-slip role.
[0020] The upper surface of the stamp body 1 is provided with a grid-like groove 6. When fixing the character plate, the position of the groove 6 is aligned with the position of the engraved line on the character plate through the transparent material of the stamp body 1 to ensure that the position of the character plate will not shift.
[0021] In this embodiment, both ends of the curved portion 2 are provided with raised reinforcing ribs 7. The bottom of the reinforcing ribs 7 is flush with the bottom of the stamp. The reinforcing ribs 7 are used to improve the structural strength of the curved portion 2 so as to avoid the curved portion 2 from breaking when clamping the two curved portions 2.
[0022] When in use, the character plate can be fixed to the bottom of the stamp body 1 by adhesive, ensuring that the character plate is in a neat position. When the stamp body 1 is pressed down, the spring piece 5 is bent by force and retracted upward into the opening 4 so that the character plate can contact the paper surface for stamping. After stamping is completed, the spring piece 5 is reset so that the character plate is removed from the paper surface.
[0023] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A novel planar seal, comprising a seal body (1), characterized in that, The stamp body has a flat plate structure. The left and right edges of the stamp body (1) are curved upward to form curved parts (2). The upper ends of the two curved parts (2) are bent outward horizontally to form folded plate parts (3). The bottom of the stamp body (1) is provided with spring pieces (5) around the perimeter. An opening (4) is formed on the surface of the stamp body (1) at the position of each spring piece (5). One end of the spring piece (5) is integrally connected to one end of the opening (4). The spring pieces (5) are all curved upward in an arc shape to support the stamp body (1).
2. A novel planar seal as described in claim 1, characterized in that, The bottom of each of the folding plate sections (3) is provided with a protrusion (31).
3. A novel planar seal as described in claim 1, characterized in that, The upper surface of the seal body (1) is provided with grid-like grooves (6).
4. A novel planar seal as described in claim 1, characterized in that, The number of the spring pieces (5) is four, and they are arranged symmetrically in pairs.
5. A novel planar seal as described in claim 1, characterized in that, The curved portion (2) has raised reinforcing ribs (7) at both ends, and the bottom of the reinforcing ribs (7) is flush with the bottom of the seal.
6. A novel planar seal as described in claim 1, characterized in that, The seal body (1) is made of transparent plastic in one piece.