Seal equipment with improved lock catch mechanism

By improving the locking mechanism, using a drive motor and gear system to drive the locking pin structure, and combining it with a locking status detection device, the safety and correctness issues of the locking mechanism of the intelligent seal device are solved, ensuring the safety and reliability of the seal device.

CN121290969APending Publication Date: 2026-01-09HANGZHOU YIQICHENG COMMERCIAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202410540083.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing smart stamp devices have problems such as the solenoid valve being easily controlled by magnetic devices, which makes the locking mechanism unsafe to operate, and the locking pin and the locking buckle are prone to misalignment, making it impossible to ensure proper locking engagement.

Method used

An improved locking mechanism is adopted, including a locking structure, a locking pin structure, a drive mechanism, and a locking status detection device. The locking pin structure is driven by a drive motor and a gear system to achieve locking engagement or disengagement. The locking status detection device detects and sends the results to a preset controller to ensure that the locking action is controlled by the preset controller and to prevent illegal control and misalignment.

Benefits of technology

It ensures the safety and accuracy of the locking mechanism, prevents unauthorized control and unauthorized pressing actions from stamping, and ensures that the stamp body is not moved when stationary.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to seal equipment with an improved lock catch mechanism, which comprises a first shell structure with a seal outlet, a seal body and the lock catch mechanism, wherein the lock catch mechanism is configured to lock the seal body in a static state and unlock the static state of the seal body; the lock catch mechanism is provided with a lock catch structure, a lock catch plug pin structure, a driving mechanism and a lock catch state detection device, the lock catch plug pin structure is driven by the driving mechanism to change the state between the lock catch plug pin structure and the lock catch structure into lock catch matching or lock catch matching releasing, and the lock catch state detection device detects the lock catch matching state between the inserting rod and the lock catch structure. The lock catch matching state detection result is sent to the preset controller, so that the lock catch action of the lock catch mechanism is only controlled by the preset controller and is not illegally controlled, and the lock catch bolt and the lock catch structure can be ensured to really complete correct lock catch matching; the purpose of preventing the seal from being stolen through manual pressing action without permission is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of seal equipment, in particular to a seal equipment with an improved locking mechanism. BACKGROUND

[0002] Seals have been widely used in various written materials such as files, agreements, certificates, bills, etc. As long as a legal seal is affixed to the written material, it indicates that the legal seal holder approves and agrees with the content of the current written material from the legal point of view. With the development of traditional seal equipment from manual pressure stamping to intelligent seal equipment, the structure of seal equipment is constantly changing.

[0003] The existing intelligent seal equipment usually includes a seal body, a seal shell, a driving mechanism and a locking mechanism. The seal shell is provided with a locking hole, and the locking mechanism includes a locking bolt and an electromagnetic valve for driving the locking bolt to complete the locking cooperation with the locking hole. When the locking bolt and the locking hole complete the locking cooperation, the seal body cannot be moved; when the locking bolt and the locking hole are unlocked, the seal body can be moved to further complete the stamping action.

[0004] When stamping is not needed, the electromagnetic valve is controlled to drive the locking bolt to complete the locking cooperation between the locking bolt and the locking hole; when stamping is needed, the electromagnetic valve is controlled in the opposite direction to drive the locking bolt to move in the opposite direction, thereby unlocking the locking cooperation between the locking bolt and the locking hole, and the seal body can be moved to further complete the stamping action.

[0005] However, the existing intelligent seal equipment has some problems: when an electromagnetic valve is used as a driving device for the locking bolt to execute the action, the electromagnetic valve is easily unlocked by a magnetic device, which causes the action of the electromagnetic valve of the locking mechanism to be easily controlled by other magnetic devices, and cannot ensure the safety of the locking hole action performed by the locking mechanism; moreover, even if the locking bolt of the locking mechanism performs the locking action, there is a situation that the locking bolt and the locking hole are misaligned and the locking fails, and it is difficult to ensure that the locking bolt and the locking hole truly complete the correct locking cooperation. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a seal equipment with an improved locking mechanism for the above-mentioned prior art. The locking action of the locking mechanism in the seal equipment not only cannot be illegally controlled, but also can ensure that the locking bolt and the locking hole truly complete the correct locking cooperation.

[0007] The technical solution adopted by the present application to solve the above technical problem is: a seal equipment with an improved locking mechanism, comprising:

[0008] A first housing structure is formed with a stamping port;

[0009] A stamp body is located in the first housing structure;

[0010] A locking mechanism is configured to lock the stamp body in a stationary state and to release the locking of the stationary state of the stamp body;

[0011] The locking mechanism has the following features:

[0012] A locking structure;

[0013] A locking bolt structure has a bolt rod capable of elastic swinging and cooperating with the locking structure to achieve a locking effect;

[0014] A driving mechanism is located in the first housing structure and is configured to drive the locking bolt structure to move under the control of a preset controller to correspondingly achieve a locking cooperation state between the bolt rod and the locking structure and release the locking cooperation state;

[0015] A locking state detection device is located in the first housing structure and detects the locking cooperation state between the bolt rod and the locking structure, and sends the locking cooperation state detection result to the preset controller.

[0016] In the invention, the stamp device with an improved locking mechanism further includes a pressing mechanism configured to drive the stamp body to move from the inside of the first housing structure to the outside of the stamping port after being pressed by a pressing force; wherein the pressing mechanism is configured to be stopped or released by the bolt rod according to the switching of the locking cooperation state of the bolt rod.

[0017] Further, in the stamp device with an improved locking mechanism, the driving mechanism includes:

[0018] A driving motor drives the locking bolt structure to move under the control of the preset controller;

[0019] A gear is in transmission connection with the motor shaft of the driving motor;

[0020] The locking bolt structure has a rack in meshing connection with the gear.

[0021] Further improvement, in the stamp device with an improved locking mechanism, the locking bolt structure includes a locking bolt body formed with a cavity, the cavity has an opening opposite to the locking structure for the bolt rod to move through; wherein the cavity is configured to accommodate the bolt rod and allow the bolt rod to move back and forth in the cavity and swing along the axial direction of the bolt rod.

[0022] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0023] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0024] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0025] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0026] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0027] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0028] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0029] Further, in the seal device with the improved locking mechanism, the cavity of the locking bolt body is provided with an elastic member, the insertion rod has an insertion rod body located in the cavity and a locking fitting end configured to be locked with the locking structure, and the insertion rod body elastically compresses the elastic member in the cavity of the locking bolt body.

[0030] Compared with the prior art, the advantages of the present application are that the seal device of the present application adds a lock mechanism capable of changing the locking stationary state of the seal body, and the lock mechanism has a lock structure, a lock bolt structure, a driving mechanism and a lock state detection device. The lock bolt structure changes the state between itself and the lock structure to be locked or unlocked under the driving of the driving mechanism. The lock state detection device detects the locked state between the plug rod and the lock structure, and sends the lock state detection result to the preset controller, so that the locking action of the lock mechanism is only controlled by the preset controller and cannot be controlled by other magnetic devices. The human being cannot intervene in the locking action of the lock mechanism by pressing action. In this way, the locking action of the lock mechanism in the seal device not only cannot be illegally controlled, but also can ensure that the lock bolt and the lock structure truly complete correct locking cooperation, and also achieves the purpose of preventing unauthorized seal pressing by human pressing action. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The seal device with the improved lock mechanism in the embodiment of the present application is shown in the structural schematic diagram.

[0032] Figure 2 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram. Figure 1 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram.

[0033] Figure 3 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram. Figure 2 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram.

[0034] Figure 4 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram. Figure 1 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram.

[0035] Figure 5 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram. Figure 1 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram.

[0036] Figure 6 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram.

[0037] Figure 7 The seal device shown in the structural schematic diagram is shown in the structural schematic diagram. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below with reference to the embodiments of the drawings.

[0039] The present embodiment provides a seal device with an improved lock mechanism. Specifically, referring to Figures 1 to 7As shown, the stamp device with an improved locking mechanism in this embodiment includes a first housing structure 1, a stamp body, and a locking mechanism. The first housing structure 1 has an outlet 10 for the stamp body to be moved out and retracted. The stamp body is located inside the first housing structure 1. The locking mechanism is configured to lock the stamp body in a stationary state and to release the lock on the stamp body in a stationary state. That is, the locking action performed by the locking mechanism prevents the stamp body from moving.

[0040] Specifically, in this embodiment, the locking mechanism includes a locking structure 3, a locking pin structure 4, a driving mechanism, and a locking state detection device 6. The locking pin structure 4 has a rod 41 that can elastically swing and cooperate with the locking structure 3 to achieve a locking effect; that is, the rod 41 can swing elastically. The driving mechanism and the locking state detection device 6 are both located within the first housing structure 1. The driving mechanism is configured to drive the locking pin structure 4 to move under the control of a preset controller to respectively realize the locking engagement state between the rod 41 and the locking structure 3 and release the locking engagement state. The locking state detection device 6 is responsible for detecting the locking engagement state between the rod 41 and the locking structure 3 and sending the locking engagement state detection result to the preset controller. After detecting whether the rod 41 and the locking structure 3 are locked or not, the locking state detection device 6 will send the corresponding locking engagement state detection result to the preset controller. In this embodiment, the preset controller is disposed within the first housing structure, and preferably, the preset controller is located on the same circuit board as the latch status detection device 6. Of course, the preset controller can also be disposed on the outside of the first housing structure according to actual needs.

[0041] For an implementation of the aforementioned drive mechanism, see [link to relevant documentation]. Figure 3 , Figure 5 and Figure 6 As shown, the driving mechanism of this embodiment includes a drive motor 51 and a gear 52. Under the control of a preset controller, the drive motor 51 drives the locking pin structure 4 to move. The gear 52 is connected to the motor shaft 511 of the drive motor 51. The locking pin structure 4 has a rack 4a that meshes with the gear 52. In this way, under the control of the preset controller, the drive motor 51 drives the locking pin structure 4 to move back and forth through the cooperation of the gear 52 and the rack 42, thereby completing the switching between the locking engagement state and the unlocking engagement state between the insertion rod 41 of the locking pin structure 4 and the locking structure 3.

[0042] Also see Figure 7As shown, the lock catch structure 4 of this embodiment includes a lock catch body 42 formed with a cavity 420 having an opening 421 opposite to the lock catch structure 3 for the insertion rod 41 to move through; wherein the cavity 420 is configured to accommodate the insertion rod 41 and allow the insertion rod 41 to move back and forth within the cavity 420 and swing along the insertion rod 41 itself in the axial direction.

[0043] It needs to be particularly noted and understood that during the process of the lock catch structure being driven by the driving force of the driving mechanism to make the insertion rod lock catch with the lock catch structure, even if the insertion rod in the current state fails to successfully lock catch with the lock catch structure, the driving mechanism will continue to keep the original driving mode to drive the lock catch structure, and the insertion rod of the lock catch structure will keep on elastically swinging under the driving force until the insertion rod finally lock catches with the lock catch structure.

[0044] In order to realize the elastic swing of the insertion rod, the insertion rod 41 of this embodiment can be of elastic quality as needed or realize the elastic swing of the insertion rod of non-elastic quality through other structural forms. Of course, this embodiment adopts other structural forms to realize the elastic swing of the insertion rod of non-elastic quality. Specifically, see Figures 5 to 7 As shown, the cavity 420 of the lock catch body 42 is provided with an elastic member 43, which can be a spring in this embodiment, and the insertion rod 41 has an insertion rod body 411 located within the cavity 420 and a lock catch end 41a configured to lock catch with the lock catch structure 3, and the insertion rod body 411 elastically compresses the elastic member 43 within the cavity 420 of the lock catch body 42.

[0045] In order to make the seal body in the unlocked state move from the inside of the first shell structure to the outside of the seal opening, the seal device of this embodiment further includes a pressing mechanism configured to drive the seal body to move from the inside of the first shell structure 1 to the outside of the seal opening 10 under the pressing force; wherein the pressing mechanism is configured to be stopped or released from the stop state by the insertion rod 41 according to the switching of the lock catch state of the insertion rod. Specifically, see Figures 2 to 5 As shown, the pressing mechanism of this embodiment includes a force receiving part 71 and a pressing rod 72, the force receiving part 71 is located on the outside of the first shell structure 1 and bears the pressing force applied by the external seal operation, such as the manual pressing force of the operator; the pressing rod 72 is connected with the force receiving part 71 and can drive the seal body to move back and forth along the inside of the first shell structure 1 to the outside of the seal opening 10; wherein the pressing rod 72 is provided with the above-mentioned lock catch structure 3 for lock catching with the insertion rod 41, and the lock catch structure 3 is located on the outside of the first shell structure 1. Wherein, the lock catch structure 3 here can be in the form of a hole structure or a notch structure or a buckle structure. The lock catch structure 3 of this embodiment adopts the form of a hole structure.

[0046] In this way, when the insertion rod 41 of the lock catch bolt structure 4 is locked with the lock catch structure 3 of the pressing rod 72, even if the pressing force part 71 is pressed manually, the pressing rod 72 cannot be moved, so that the pressing rod 72 cannot drive the stamp body to move back and forth.

[0047] As an implementation mode of the lock catch state detection device detecting the lock catch cooperation state between the insertion rod and the lock catch structure, in this embodiment, referring to Figure 5 , the insertion rod 41 of this embodiment is provided with a lock catch sensing contact 41b for the lock catch state detection device 6 to detect the touch state; wherein the lock catch sensing contact 41b is configured to touch the lock catch state detection device 6 as the insertion rod 41 moves away from the lock catch structure 3 and to eliminate the touch to the lock catch state detection device 6 as the insertion rod 41 moves towards the lock catch structure 3; or the lock catch sensing contact 41b is configured to touch the lock catch state detection device 6 as the insertion rod 41 moves towards the lock catch structure 3 and to eliminate the touch to the lock catch state detection device 6 as the insertion rod 41 moves away from the lock catch structure 3. Further referring to Figure 7 , the lock catch sensing contact 41b here is a resilient structure, and preferably the lock catch sensing contact 41b is formed by the insertion rod 41. Specifically, the lock catch sensing contact 41b is located at the bottom of the insertion rod 41, and the lock catch state detection device 6 is located at the position that can be touched by the lock catch sensing contact 41b at the bottom of the insertion rod 41.

[0048] In the case of ensuring that the lock catch cooperation state between the insertion rod and the lock catch structure can be completed, in order to limit the movement stroke of the insertion rod, the lock catch bolt body 42 of this embodiment has a stroke limiting structure 422 limiting the movement stroke of the insertion rod 41, and the insertion rod 41 has a stroke limiting cooperation structure 412 cooperating with the stroke limiting structure 422. For example, the stroke limiting structure 422 here can be a section of slot formed on the lock catch bolt body 42, and the stroke limiting cooperation structure 412 is a protruding structure that can move back and forth in the section of slot.

[0049] Of course, the stamp device of this embodiment includes a first shell 81 and a second shell 82, the first shell 81 is located above the second shell 82, and the first shell 81 and the second shell 82 are detachably assembled together to form the shell body of the stamp device. The first shell structure 1, the stamp body and the lock catch mechanism described above are all located inside the shell body.

[0050] The following will be described in combination with Figures 1 to 7 , the principle of the lock catch mechanism of the stamp device in this embodiment is described:

[0051] When the seal body completes the stamping action and is received into the first housing through the seal opening, the preset controller controls the driving mechanism to perform the driving action on the lock catch structure to achieve the locking cooperation between the insertion rod 41 of the lock catch structure 4 and the locking structure 3 of the pressing rod 72; once the insertion rod 41 is not inserted into the locking structure 3 of the hole-shaped structure to complete the locking, the driving motor of the driving mechanism drives the insertion rod 41 of the lock catch structure 4 to be inserted into the locking structure 3 of the pressing rod 72 through the cooperation of the gear and the rack; since the insertion rod here can be elastically swung, even if the insertion rod 41 is not inserted into the locking structure 3 of the pressing rod 72, the insertion rod 41 will continue to swing and finally make the swung insertion rod 41 inserted into the locking structure 3 of the pressing rod 72 to complete the locking cooperation between them; since the insertion rod 41 of the lock catch structure 4 and the locking structure 3 of the pressing rod 72 are in the locking cooperation state, even if the force receiving part 71 is manually pressed, the pressing rod 72 cannot be moved, so that the pressing rod 72 cannot drive the seal body to move back and forth, so that the seal body is locked in a static state. After the insertion rod 41 of the lock catch structure 4 is inserted into the locking structure 3 of the pressing rod 72, the locking state detection device 6 judges that the insertion rod and the locking hole are in the locking cooperation state through the touch detection of the locking sensing contact 41b on the insertion rod. Even if a person who does not have permission of the seal equipment manager wants to make the pressing rod drive the seal body to move towards the outside of the seal opening and complete the stamping action by pressing the force receiving part, the driving motor in the outer housing will not eliminate the driving of the lock catch structure without receiving the control instruction of the preset controller, so that the insertion rod of the lock catch structure is always locked with the locking structure 3 of the pressing rod 72, and the pressing rod cannot drive the seal body to move even if it is pressed, which ensures that the locking action of the lock catch mechanism on the static state of the seal body cannot be controlled by the pressing operation.

[0052] Once the driving motor receives the unlocking instruction of the preset controller, the driving motor will not continue to apply the driving force to the lock catch structure towards the locking structure, but will drive the lock catch structure to move in the opposite direction until the insertion rod of the lock catch structure is no longer locked with the locking structure 3 of the pressing rod 72, so that the pressing rod 72 can drive the seal body to move towards the outside of the seal opening by applying the pressing force to the force receiving part to complete the stamping action.

[0053] Although the preferred embodiments of the present application are described in detail above, it should be clear to those skilled in the art that the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A seal device with an improved locking mechanism, comprising: a first housing structure (1) formed with a seal outlet (10); a seal body located in the first housing structure (1); a locking mechanism configured to lock the seal body in a stationary state and release the lock of the seal body in the stationary state; characterized in that the locking mechanism has: a locking structure (3); a locking bolt structure (4) having a bolt rod (41) capable of elastic swinging and cooperating with the locking structure (3) to achieve a locking effect; a driving mechanism located in the first housing structure (1) and configured to drive the locking bolt structure (4) to move under the control of a preset controller to correspondingly achieve the locking cooperation state and release the locking cooperation state between the bolt rod (41) and the locking structure (3); a locking state detection device (6) located in the first housing structure (1) and detecting the locking cooperation state between the bolt rod (41) and the locking structure (3), and sending the locking cooperation state detection result to the preset controller.

2. The stamp device having an improved locking mechanism as claimed in claim 1, wherein, Further comprising a pressing mechanism configured to drive the seal body to move from the inside of the first housing structure (1) to the outside of the seal outlet (10) after being pressed by a pressing force; wherein the pressing mechanism is configured to be stopped or released by the bolt rod (41) with the switching of the locking cooperation state of the bolt rod (41).

3. The stamp device having an improved locking mechanism as claimed in claim 2, wherein, The driving mechanism comprises: a driving motor (51) driving the locking bolt structure (4) to move under the control of the preset controller; a gear (52) in transmission connection with a motor shaft (511) of the driving motor (51); wherein the locking bolt structure (4) has a rack (4a) in mutual engagement with the gear (52).

4. The stamp device having an improved locking mechanism as claimed in claim 3, wherein, The locking bolt structure (4) comprises a locking bolt body (42) formed with a cavity (420) having an opening (421) opposite to the locking structure (3) for the bolt rod (41) to move through; wherein the cavity (420) is configured to accommodate the bolt rod (41) and allow the bolt rod (41) to move back and forth in the cavity (420) and swing along the axial direction of the bolt rod (41) itself.

5. The stamp device having an improved locking mechanism as claimed in claim 4, wherein, The cavity (420) of the locking bolt body (42) is provided with an elastic member (43), and the bolt rod (41) has a bolt rod body (411) located in the cavity (420) and a locking cooperation end (41a) configured to be locked with the locking structure (3), and the bolt rod body (411) elastically compresses the elastic member (43) in the cavity (420) of the locking bolt body (42).

6. The stamp device having an improved locking mechanism as claimed in claim 5, wherein, The plug rod (41) is provided with a lock catch sensing contact (41b) for detecting the touch state of the lock catch state detection device (6); wherein the lock catch sensing contact (41b) is configured to touch the lock catch state detection device (6) when the plug rod (41) moves away from the lock catch structure (3) and to eliminate the touch on the lock catch state detection device (6) when the plug rod (41) moves towards the lock catch structure (3); or the lock catch sensing contact (41b) is configured to touch the lock catch state detection device (6) when the plug rod (41) moves towards the lock catch structure (3) and to eliminate the touch on the lock catch state detection device (6) when the plug rod (41) moves away from the lock catch structure (3).

7. The stamp device having an improved locking mechanism as claimed in claim 6, wherein, The lock catch sensing contact (41b) is a resilient structure.

8. The stamping device with improved locking mechanism according to any one of claims 2 to 7, characterized in that, The pressing mechanism comprises: A force receiving portion (71) located on the outside of the first housing structure (1) and receiving the pressing force applied by the external stamping operation; A pressing rod (72) connected with the force receiving portion (71) and capable of driving the stamp body to move back and forth along the inside of the first housing structure (1) towards the outside of the stamping opening (10); wherein the pressing rod (72) is provided with the lock catch structure (3) matched with the plug rod (41), and the lock catch structure (3) is located on the outside of the first housing structure (1).

9. The stamping device with improved locking mechanism as claimed in any one of claims 4 to 7, wherein, The lock catch bolt body (42) is provided with a stroke limiting structure (422) for limiting the movement stroke of the plug rod (41), and the plug rod (41) is provided with a stroke limiting matching structure (412) matched with the stroke limiting structure (422).

10. The stamping device having an improved lock mechanism as claimed in any one of claims 1 to 7, wherein, The preset controller is located on the inside or outside of the first housing structure (1).