A seal

By combining the handle cover, spring, middle shell, and ink fountain handle, the problem of complex assembly and unsightly screw holes in existing stamps is solved, achieving a stamp design that enables efficient production and stable connection.

CN117984676BActive Publication Date: 2026-04-28MOJIE TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MOJIE TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2024-02-02
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing stamp designs, the spring sleeve on the core makes assembly difficult, and it loosens after prolonged use, affecting the stamping effect. Furthermore, the screw fixing method affects aesthetics and production efficiency.

Method used

The design incorporates a combination of handle cover, spring, middle shell, ink fountain handle, and bottom cover. The spring is fitted onto the upper part of the shell, and a stable connection of the ink fountain handle is achieved through a limiting post and retaining ring groove structure, avoiding screw holes and simplifying the production process.

Benefits of technology

It improves the production efficiency and aesthetics of stamps, reduces production costs, and ensures that the stability of the ink fountain handle is not affected.

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Abstract

The application provides a seal, which comprises a handle surface cover, a spring, a middle shell, an ink duct handle arranged in the middle shell, an ink duct body in clasp with the ink duct handle, and a bottom cover arranged in sequence, wherein the middle shell comprises a shell upper part and a shell body arranged in sequence, the inner cross section of the shell upper part close to the inner top of the handle surface cover is smaller than the inner cross section close to the shell body; the spring is sleeved on the shell upper part, one end of the spring is in abutment with the inner part of the handle surface cover, and the other end of the spring is in abutment with the shell body; a limiting column is arranged in the inner part of the handle surface cover, the limiting column is inserted into the shell upper part, and a part of the ink duct handle is inserted into the limiting column. The seal has the advantages that the seal product is redefined, the appearance is beautiful, the production cost is reduced, and the production efficiency is high.
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Description

Technical Field

[0001] This invention relates to the field of seal technology, and more particularly to a seal. Background Technology

[0002] Existing patent publication number CN203427471U discloses a stamp in which the handle and the shell are fixed by screws, so that the handle and the shell will not separate when the handle and the hopper are separated; by means of a spring, an upward force is applied to the handle, and the spring force keeps the hopper contained in the receiving cavity without applying external force to the handle; or patent publication number CN216231283U discloses a stamp in which a spring is sleeved on the core, with its upper end abutting against the handle and its lower end abutting against the shell.

[0003] All of the above technologies involve placing a spring on the core, which makes assembly difficult when stamping. Furthermore, the spring may loosen after prolonged use, causing instability in the core and affecting the stamping effect. The connection between the stamp handle and the stamp shell is fixed with screws, which requires screw holes to be made in the stamp shell, affecting the appearance of the stamp. In addition, the production process of fixing with screws is added, making the assembly more complicated.

[0004] When stamps are intended for use by children, an attractive appearance is one of the product's competitive advantages, and reducing the number of screw-fixing steps and increasing production efficiency are ways for companies to reduce costs. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and deficiencies by providing a stamp with high production efficiency and no screw holes on its surface.

[0006] The technical solution of the present invention is implemented as follows: A stamp includes a handle cover, a spring, a middle shell, an ink fountain handle disposed inside the middle shell, an ink fountain body engaged with the ink fountain handle, and a bottom cover arranged sequentially. The middle shell includes an upper shell part and a shell part arranged sequentially. The inner cross-section of the upper shell part near the top of the handle cover is smaller than the inner cross-section near the shell part. The spring is sleeved on the upper shell part, with one end abutting against the inside of the handle cover and the other end abutting against the shell part. A limiting post is provided inside the handle cover, and the limiting post is inserted into the upper shell part. A portion of the ink fountain handle is inserted into the limiting post.

[0007] Furthermore, the upper part of the shell includes a limiting part and a slide part. The limiting post includes an abutting part, a fork opening, and a retaining ring groove provided on the fork opening. The ink fountain handle is provided with a retaining ring and a slide rail. The fork opening is located inside the limiting part. The slide rail enters the fork opening along the slide part, abuts against the abutting part, and the retaining ring is engaged in the retaining ring groove.

[0008] Furthermore, the housing is provided with a receiving cavity, and the lower end of the ink fountain handle is provided with a snap-fit ​​plate and is housed in the receiving cavity of the middle shell;

[0009] The ink fountain body for storing ink is engaged with the snap-fit ​​plate and housed in the receiving cavity. The ink fountain body includes an ink fountain shell, an ink reservoir body, and an ink fountain cover arranged in sequence. When the ink fountain body is at its upper limit, the snap-fit ​​plate is at a distance from its own upper limit, so that the snap-fit ​​plate can move upward and disengage from the ink fountain body.

[0010] Furthermore, it also includes a bottom cover, which fits into the middle shell.

[0011] Furthermore, the limiting part and the slide part are connected by a tapered part, and the interior of the limiting part and the slide part are cylindrical, with the inner cross-section of the limiting part being smaller than the inner cross-section of the slide part.

[0012] Furthermore, the fork opening includes a first fork edge and a second fork edge, and the retaining ring groove is disposed on the first fork edge and the second fork edge; when the spring is compressed, the first fork edge and the second fork edge are located in the slide section, and when the ink fountain handle is inserted, the first fork edge and the second fork edge open and deform, and the retaining ring is engaged in the retaining ring groove.

[0013] Furthermore, when the spring is released, the forked opening, together with the ink fountain handle, enters the limiting part, which restricts the opening and deformation of the first fork and the second fork, and the ink fountain handle cannot detach from the handle cover.

[0014] Furthermore, the interior of the upper part of the shell is conical, while the exterior of the upper part of the shell is cylindrical.

[0015] Furthermore, both the inner and outer surfaces of the upper part of the shell are conical.

[0016] Furthermore, the oil-retaining printing body includes a photosensitive pad, and the lower end face of the photosensitive pad forms a printing surface.

[0017] This invention redefines stamp products, resulting in an aesthetically pleasing appearance, reduced production costs, and high production efficiency. The spring, located on the upper part of the casing, prevents the ink fountain handle from wobbling and does not affect usability. The invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] Figure 1 This is an exploded view of a seal according to an embodiment of the present invention;

[0020] Figure 2This is a front view of a seal according to an embodiment of the present invention, a cross-sectional view along the center line of the X-axis direction;

[0021] Figure 3 This is a front view of a seal according to an embodiment of the present invention, a cross-sectional view along the Z-axis.

[0022] Figure 4 This is a schematic diagram of the handle cover of a seal according to an embodiment of the present invention;

[0023] Figure 5 This is a front view of a seal according to an embodiment of the present invention.

[0024] List of reference numerals in the attached diagram:

[0025] Handle cover 1, limiting post 10, abutment part 101, retaining ring groove 102, fork opening 103, first fork edge 1031, second fork edge 1032, spring 2, middle shell 3, upper shell part 31, limiting part 311, slide part 312, conical part 313, shell 32, ink fountain handle 4, slide rail 41, retaining ring 42, retaining plate 43, ink fountain shell 5, photosensitive pad 6, ink fountain cover 7, bottom cover 8. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] like Figure 1 ,Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the present invention is a stamp, comprising a handle cover 1, a spring 2, a middle shell 3, an ink fountain handle 4 disposed inside the middle shell, an ink fountain body engaged with the ink fountain handle, and a bottom cover 8 arranged sequentially. The middle shell 3 includes an upper shell portion 31 and a shell portion 32 arranged sequentially. The inner cross-section of the upper shell portion 31 near the top of the handle cover 1 is smaller than the inner cross-section near the shell portion 32. The spring 2 is sleeved on the upper shell portion 31, with one end abutting against the inside of the handle cover 1 and the other end abutting against the shell portion 32. A limiting post 10 is provided inside the handle cover 1, and the limiting post 10 is inserted into the upper shell portion 31. A portion of the ink fountain handle 4 is inserted into the limiting post 10.

[0029] The upper part 31 of the shell includes a limiting part 311 and a slide part 312. The limiting post 10 includes an abutting part 101, a fork opening 103, and a retaining ring groove 102 provided on the fork opening 103. The ink fountain handle 4 is provided with a retaining ring 42 and a slide rail 41. The fork opening 103 is located inside the limiting part 311. The slide rail 41 enters the fork opening 103 along the slide part 312, abuts against the abutting part 101, and the retaining ring 42 is engaged in the retaining ring groove 102.

[0030] The housing 32 has a receiving cavity, and the lower end of the ink fountain handle 4 is provided with a snap-fit ​​plate 43 and is housed in the receiving cavity of the middle housing 3.

[0031] The ink fountain body for storing ink is engaged with the snap-fit ​​plate 43 and housed in the receiving cavity. The ink fountain body includes an ink fountain shell 5, an ink-storing ink body, and an ink fountain cover 7 arranged in sequence. When the ink fountain body is at its upper dead point, the snap-fit ​​plate 43 is at a distance from its own upper dead point, so that the snap-fit ​​plate 43 can move upward and disengage from the ink fountain body.

[0032] It also includes a bottom cover 8, which covers the middle shell 3.

[0033] The limiting part 311 and the slide part 312 are connected by a tapered part 313. The interior of the limiting part 311 and the slide part 312 are cylindrical. The inner cross-section of the limiting part 311 is smaller than the inner cross-section of the slide part 312.

[0034] The fork opening 103 includes a first fork edge 1031 and a second fork edge 1032. The retaining ring groove 102 is disposed on the first fork edge 1031 and the second fork edge 1032. When the spring 2 is compressed, the first fork edge 1031 and the second fork edge 1032 are located in the slide section 312. When the ink fountain handle 4 is inserted, the first fork edge 1031 and the second fork edge 1032 open and deform, and the retaining ring 42 is engaged in the retaining ring groove 102.

[0035] When the spring 2 is released, the fork 103, together with the ink fountain handle 4, enters the limiting part 311. The limiting part 311 restricts the opening and deformation of the first fork edge 1031 and the second fork edge 1032, and the ink fountain handle 4 cannot detach from the handle cover 1.

[0036] The interior of the upper shell 31 is conical, while the exterior of the upper shell 31 is cylindrical.

[0037] The upper part 31 of the shell is conical in shape both inside and out.

[0038] The oil-retaining printing body includes a photosensitive pad 6, and the lower end face of the photosensitive pad 6 forms a printing surface.

[0039] Instructions for use of the stamp: The handle cover 1 is inserted into the middle shell 3, so that the limiting post 10 of the handle cover 1 enters the limiting part 311 of the upper shell 31; the ink fountain handle 4 is inserted into the upper shell 31 from the lower part of the middle shell 3, and force is applied to cause the forked opening 103 of the limiting post 10 to open and deform, so that the ink fountain handle 4 can be locked into the retaining ring groove 102; the spring 2 is released, so that the ink fountain handle 4 and the forked opening 103 of the limiting post 10 enter the position of the limiting part 311 of the upper shell 31 together. The narrowest position of the limiting part 311 of the upper shell 31 prevents the forked opening 103 of the limiting post 10 from deforming, so that the ink fountain handle 4 cannot be separated from the handle cover 1; the spring 2 is compressed, and force is applied again. When the ink fountain body is at the upper stop point, the retaining plate 43 forms a distance from its own upper stop point to allow the retaining plate 43 to move upward, so that the ink fountain handle 4 separates from the ink fountain body.

[0040] The upper part 31 of the shell is designed with an inner cross-section closer to the top of the handle cover 1 that is smaller than the inner cross-section closer to the shell 32 for three main purposes:

[0041] 1. During assembly, the handle cover 1 and the middle shell 3 are in a compressed state, so that the fork 103 of the limiting post 10 of the handle cover 1 is at the maximum of the inner cross-section of the upper part 31 of the shell. When the ink fountain 4 is inserted, the fork 103 of the handle cover 1 can deform freely, so that the retaining ring 42 of the ink fountain 4 can enter the retaining ring groove 102 of the fork 103 of the handle cover 1.

[0042] 2. After the spring 2 is released, the fork 103 of the handle cover 1 will pull the ink fountain 4 into the narrowest part of the inner cross-section of the upper part 31 of the shell, so that the handle cover 1 and the ink fountain 4 will not separate.

[0043] 3. Pull open the ink fountain body (the handle cover 1 and the middle shell 3 should move in opposite directions. The fork 103 of the handle cover 1 is always at the narrowest point of the inner cross section of the upper shell 31, so the fork 103 of the handle cover 1 cannot be freely deformed and opened, thus the ink fountain handle 4 is stuck and cannot be disengaged.

[0044] Traditional designs require drilling a hole and screwing it into the top of the handle cover 1 to prevent the ink fountain shank 4 from separating from the handle cover 1 when the ink fountain body is pulled open. The above design can achieve the same effect without drilling a hole in the top, which enhances the aesthetics of the product. It also eliminates the need for screwing, increasing production efficiency and saving costs.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamp, comprising a handle cover, a spring, a middle shell, an ink fountain handle disposed inside the middle shell, an ink fountain body engaged with the ink fountain handle, and a bottom cover, arranged sequentially, characterized in that, The middle shell includes an upper shell and a outer shell arranged sequentially. The inner cross-section of the upper shell near the top of the handle cover is smaller than the inner cross-section near the outer shell. The spring is sleeved on the upper shell, with one end abutting against the inside of the handle cover and the other end abutting against the outer shell. A limiting post is provided inside the handle cover, and the limiting post is inserted into the upper shell. A portion of the ink fountain handle is inserted into the limiting post. The upper part of the shell includes a limiting part and a slide part. The limiting post includes an abutting part, a fork opening, and a retaining ring groove provided on the fork opening. The ink fountain handle is provided with a retaining ring and a slide rail. The fork opening is located inside the limiting part. The slide rail enters the fork opening along the slide part, abuts against the abutting part, and the retaining ring is engaged in the retaining ring groove. The forked opening includes a first fork and a second fork, and the retaining ring groove is provided on the first fork and the second fork; when the spring is compressed, the first fork and the second fork are located in the slide section; when the ink fountain handle is inserted, the first fork and the second fork open and deform, and the retaining ring is engaged in the retaining ring groove. When the spring is released, the forked opening, together with the ink fountain handle, enters the limiting part, which restricts the opening and deformation of the first and second forked sides, and the ink fountain handle cannot detach from the handle cover.

2. The seal according to claim 1, characterized in that, The housing has a receiving cavity, and the lower end of the ink fountain handle is provided with a snap-fit ​​plate and is housed in the receiving cavity of the middle shell. The ink fountain body for storing ink is engaged with the snap-fit ​​plate and housed in the receiving cavity. The ink fountain body includes an ink fountain shell, an ink reservoir body, and an ink fountain cover arranged in sequence. When the ink fountain body is at its upper limit, the snap-fit ​​plate is at a distance from its own upper limit, so that the snap-fit ​​plate can move upward and disengage from the ink fountain body.

3. The seal according to claim 1, characterized in that, It also includes a bottom cover, which fits into the middle shell.

4. The seal according to claim 1, characterized in that, The limiting part and the slide part are connected by a tapered part. The interior of the limiting part and the slide part are cylindrical. The inner cross-section of the limiting part is smaller than that of the slide part.

5. The seal according to claim 1, wherein the interior of the upper part of the shell is conical, and the exterior of the upper part of the shell is cylindrical.

6. The seal according to claim 1, characterized in that, The upper part of the shell is conical in both its inner and outer surfaces.

7. The seal according to claim 2, characterized in that, The oil-retaining printing body includes a photosensitive pad, and the lower end face of the photosensitive pad forms a printing surface.

Citation Information

Patent Citations

  • Seal

    CN203427471U

  • Seal

    CN216231283U

  • Seal

    CN221541029U

  • Seal

    CN2442839Y